CA2555455A1 - Variable configuration articulated tracked vehicle - Google Patents

Variable configuration articulated tracked vehicle Download PDF

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Publication number
CA2555455A1
CA2555455A1 CA002555455A CA2555455A CA2555455A1 CA 2555455 A1 CA2555455 A1 CA 2555455A1 CA 002555455 A CA002555455 A CA 002555455A CA 2555455 A CA2555455 A CA 2555455A CA 2555455 A1 CA2555455 A1 CA 2555455A1
Authority
CA
Canada
Prior art keywords
tracked vehicle
variable configuration
chassis
drive pulleys
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002555455A
Other languages
French (fr)
Other versions
CA2555455C (en
Inventor
Andrew A. Goldenberg
Jun Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Supperobotics Ltd
Original Assignee
Engineering Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Engineering Services Inc filed Critical Engineering Services Inc
Publication of CA2555455A1 publication Critical patent/CA2555455A1/en
Application granted granted Critical
Publication of CA2555455C publication Critical patent/CA2555455C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/06—Endless track vehicles with tracks without ground wheels
    • B62D55/075—Tracked vehicles for ascending or descending stairs, steep slopes or vertical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/10—Bogies; Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/12—Arrangement, location, or adaptation of driving sprockets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/14—Arrangement, location, or adaptation of rollers

Abstract

A variable configuration articulated tracked vehicle comprises a chassis, a pair of right and left drive pulleys, a right and left planetary wheel, a right and left track, a right and left arm mechanism, and a right and left drive motor. The drive pulleys are rotatably attached to the chassis and each pair of drive pulleys is in the same plane.
The planetary wheels are movable relative to the chassis such that each planetary wheel is in the same plane as its respective drive pulleys. The tracks extend around the pair of drive pulleys and the planetary wheel on the respective sides. The arm mechanisms connect the respective planetary wheel to the chassis. Each arm mechanism is rotatably attached to the chassis with a cam. The cam defines a motion path of one end of the arm whereby the motion of the planetary wheel provides a path for the planetary wheel such that the track path defined by the respective drive pulleys and the planetary wheel is a constant track length. The motors are each operably connected to the respective pair of drive pulleys for driving the track.

Claims (37)

1. A variable configuration articulated tracked vehicle comprising:
a chassis;
a pair of right drive pulleys and a pair of left drive pulleys rotatably attached to the right and left side of the chassis respectively, each pair of drive pulleys are in the same plane;
a right and a left planetary wheel movable relative to the chassis such that each planetary wheel is in the same plane as its respective drive pulleys;
a right and a left track belt each extending around the pair of drive pulleys and the planetary wheel on the respective sides, each track belt having a track length;
a right and a left planetary wheel arm operably connecting the respective planetary wheels to the chassis, each planetary wheel arm being rotatably attached to the chassis with a cam, the cam defining the motion path of one end of the planetary wheel arm whereby the motion of the planetary wheel provides a path for the planetary wheel such that the track path defined by the respective drive pulleys and the planetary wheel has a constant length;
a drive means for the right and left track belt; and a means for positioning the right and left planetary wheels.
2. A variable configuration articulated tracked vehicle as claimed in claim 1 wherein the drive means is a right drive motor and a left drive motor, each operably connected to the respective pair of drive pulleys for driving the track belt.
3. A variable configuration articulated tacked vehicle as claimed claim 1 or 2 wherein each pair of drive pulleys is compliant to impact.
4. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 3 wherein each planetary wheel arm has a track tensioning mechanism that includes a fixed cam, a crank and a follower whereby the crank is rotatably attached to the chassis and the follower is slidingly engaged in the crank, one end of the follower is rotatably attached to the cam and other end is attached to the planetary wheel.
5. A variable configuration articulated tracked vehicle as claimed in claim 4 wherein the follower includes a tension follower, a guider and a spring therebetween whereby the spring biases the planetary wheel outwardly.
6. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 5 wherein each of the pair of drive pulleys has a diameter that is the same as the others.
7. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 6 wherein each planetary wheel has a diameter that is the same as the drive pulley diameter.
8. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 7 wherein the path of the planetary wheel is an ellipse having the drive pulleys as the foci of the ellipse.
9. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 8 wherein the right and left planetary wheel arms are attached together with an arm main shaft such that movement of the arm main shaft effectively moves the right and left planetary wheels in concert.
10. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 9 wherein the positioning means is a planetary motor operably connected to the right and left planetary wheels.
11. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 10 further including a right and left skid support for the bottom of the track belt.
12. A variable configuration articulated tracked vehicle as claimed in claim 11 wherein each skid support is compliant to impact.
13. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 12 further including a robotic arm mounted on the chassis.
14. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 13 further including accessories attached thereto wherein the accessories are chosen from the group consisting of PTZ cameras, bio-chem sensors, x-ray equipment, disrupters, wireless equipment, standard sensors and combinations thereof.
15. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 14 wherein the vehicle is operated remotely.
16. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 15 wherein the vehicle is invertable remotely without disturbing its operation.
17. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 16 wherein the planetary wheel is used to facilitate stair ascending and descending.
18. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 17 wherein the planetary wheel is used to facilitate ditch crossing.
19. A variable configuration articulated tracked vehicle as claimed in any one of claims 1 to 18 further including a remote control unit operably connected to the vehicle.
20. A variable configuration articulated tracked vehicle as claimed in claim 19 wherein the remote control unit is connected by way of radio frequency.
21. A variable configuration articulated tracked vehicle as claimed in claim 19 or 20 wherein the remote control unit includes an arm command that moves a robotic arm attached to the chassis into a stowed position.
22. A variable configuration articulated tracked vehicle as claimed in claim 21 further includes another arm command that moves the robotic arm into a predetermined location.
23. A variable configuration articulated tracked vehicle as claimed in any one of claims 20 to 22 wherein the remote control unit includes a chassis command that moves the chassis in a straight line between a point A and a point B.
24. A variable configuration articulated tracked vehicle as claimed in claim 23 wherein the remote control unit includes another chassis command that moves the chassis in a circle of a selected radius.
25. A variable configuration articulated tracked vehicle as claimed in claim 24 wherein readings from a GPS system attached to the vehicle are used to correct the straight line chassis command and the circle chassis command.
26. A variable configuration articulated tracked vehicle as claimed in claim 25 wherein readings from a compass attached to the vehicle are used to correct the straight line chassis command.
27. A variable configuration articulated tracked vehicle as claimed in any one of claims 19 to 26 wherein the remote control unit includes an automatic climb stair command and a descend stair command.
28. A variable configuration articulated tracked vehicle as claimed in 27 wherein the climb stair command and the descend stair command adjusts the position of the planetary wheel thereby adjusting the centre of gravity according to a stability calculation based on the centre of gravity.
29. A tracked vehicle comprising:
a chassis;
a pair of right drive pulleys and a pair of left drive pulleys rotatably attached to the right and left side of the chassis respectively, each pair of drive pulleys are in the same plane;
a right and a left tensioning pulley, each tensioning pulley in the same plane as the respective pair of drive pulleys a right and a left track belt, each extending around the pair of drive pulleys and the tensioning pulley on the respective sides; and a drive means for the right and left track belt.
30. A tracked vehicle as claimed in claim 29 wherein the drive means is a right drive motor and a left drive motor, each operably connected to the respective pair of drive pulleys for driving the track belt.
31. A tracked vehicle as claimed in claim 29 or 30 further including a tensioning arm that connects the tensioning pulley to the chassis.
32. A tracked vehicle as claimed in claim 31 wherein the tensioning arm includes a tension follower, a guider and a spring therebetween, whereby the spring biases the tensioning pulley outwardly thereby tensioning the track belt.
33. A tracked vehicle as claimed in any one of claims 29 to 32 further including a right and left skid support for the bottom of the track.
34. A tracked vehicle as claimed in claim 33 wherein the right and left skid supports are compliant to impact.
35. A tracked vehicle as claimed in any one of claims 29 to 34 wherein each pair of drive pulleys is compliant to impact.
36. A tracked vehicle comprising:
a chassis;
a pair of right drive pulleys and a pair of left drive pulleys rotatably attached to the right and left side of the chassis respectively, each pair of drive pulleys are in the same plane;
a right and a left track belt each extending around the pair of drive pulleys on the respective sides, each track belt having a track length;

a drive means for the right and left track belt; and a remote control unit operably connected to the vehicle, the remote control unit includes an automatic climb stair command and a descend stair command.
37. A tracked vehicle as claimed in claim 38 further including means for varying the centre of gravity and wherein the centre of gravity is adjusted automatically as the vehicle climbs the stairs and descends the stairs pursuant to the climb stair command and the descend stair command.
CA2555455A 2005-08-04 2006-08-04 Variable configuration articulated tracked vehicle Active CA2555455C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/196,486 US7493976B2 (en) 2005-08-04 2005-08-04 Variable configuration articulated tracked vehicle
US11/196,486 2005-08-04

Publications (2)

Publication Number Publication Date
CA2555455A1 true CA2555455A1 (en) 2007-02-04
CA2555455C CA2555455C (en) 2010-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2555455A Active CA2555455C (en) 2005-08-04 2006-08-04 Variable configuration articulated tracked vehicle

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US (2) US7493976B2 (en)
CA (1) CA2555455C (en)

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Also Published As

Publication number Publication date
US20070029117A1 (en) 2007-02-08
US20070193790A1 (en) 2007-08-23
CA2555455C (en) 2010-08-17
US7600592B2 (en) 2009-10-13
US7493976B2 (en) 2009-02-24

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