GB2242232A - Piston and cylinder device for holding together the end links of a tracked vehicle - Google Patents
Piston and cylinder device for holding together the end links of a tracked vehicle Download PDFInfo
- Publication number
- GB2242232A GB2242232A GB9006492A GB9006492A GB2242232A GB 2242232 A GB2242232 A GB 2242232A GB 9006492 A GB9006492 A GB 9006492A GB 9006492 A GB9006492 A GB 9006492A GB 2242232 A GB2242232 A GB 2242232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lug
- ram cylinder
- piston rod
- ram
- threaded
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/22—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning sprocket chains, endless tracks, antiskid chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/32—Assembly, disassembly, repair or servicing of endless-track systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Compressor (AREA)
Abstract
A device (1) for holding together the two end links of a vehicle track, to facilitate the insertion of a connecting link, includes a fixed lug (18) mounted at one end of a ram cylinder (3) and a movable lug (26) at its other end, carried on a slidable piston rod (4). One end of the ram cylinder 3 has a guide sleeve (18a) for the piston rod 4, the other end being closed by a threaded carrier member (13) engaged in an enlarged threaded bore portion (12) of the ram cylinder (3). The member (13) has an extension (16) of reduced diameter which receives a support 17 carrying the fixed lug 18 and retained on the cylinder body (3) by a screw. <IMAGE>
Description
TRACK MNK COMPRESSOR FOR A TRACKED VEHICLE
The present invention relates to a track compressor for clamping together the track links of a tracked vehicle such as a tank.
The compressor of the invention has a simple construction and, during use, is highly suitable for removing and fitting this type of track.
The actual construction of the compressor makes it possible to change track link pins, thereby avoiding accidents and affording a saving in manpower and any type of additional tools.
According to the invention there is provided a track compressor for use in the fitting and removal of the corresponding track link pin disposed between its two neighbouring track links of a track for a tracked vehicle, said compressor consisting of a hydraulic ram cylinder closed at one of its ends and having fixed inside the other end a guide sleeve for the ram piston rod; wherein one end of said ram piston rod projects from the ram cylinder and has fitted thereon the support for a lug to position one of the links wherein the ram cylinder has hydraulic fluid inlet and outlet means for regulating the position of the ram piston ånd hence the displacesent of said lug, carried by the piston rod; and wherein the closed end of the ram cylinder includes means defining the fixed lug, said lug defining means being connected to the body of the ram cylinder by a part which is fixed at one end to an internally threaded end of the body of the ram cylinder by an enlarged bore thereof and is fixed at its other end to said lug defining means by way of an internal axial screw.
The fixing of said support for the lug to the piston rod is effected by means of a screw whose head is recessed in the support and whose shank is threaded in an axially extending blind hole at the end of the piston rod.
A hydraulic seal having an external diameter which is approximately equal to that of the inside of the ram cylinder is fitted on the piston rod. This seal abuts against the free inner end of the guide sleeve.
Inside the ram cylinder and in a circumferential recess in the vicinity of said hydraulic seal, is disposed a retaining clip or Seeger ring, in the vicinity of the hydraulic fluid inlet.
On the opposite end of the piston rod, on a cylindrical stub, there is fitted the hydraulic piston with a hydraulic seal and a support with a Teflon (R.T.M.) strip.
At this end, the piston rod has an axially threaded blind hole.
The fixing together of the piston, the seal and the piston support coupling results from engagement of a screw in the threaded blind hole.
There may be a threaded cylindrical enlarged bore in the inner end zone of the ram cylinder, to receive said part which is an externally threaded cylindrical sleeve-like part having a reduced diameter end emerging from the free end of the ram cylinder to support said part carrying the fixed lug, and mounted on the reduced diameter end by means of a screw which is threaded in an axial threaded hole in said reduced diameter end.
When the compressor is open, the ram has an inner chamber included between the end of the piston and the hydraulic seal which is mounted on the piston rod and abuts the end of the guide sleeve.
The two positions of the compressor are the following:
One of them is when the movable lug, fitted on the end of the piston rod, is displaced manually to reach maximum separation from the fixed lug.
In this position, the piston abuts against the
Seeger ring or clip.
When it is desired to join the track, hydraulic fluid is introduced into the cylinder under a correspondingly increased pressure. This pressure causes the piston to be displaced to bring the movable lug closer to the fixed lug, at which moment the track ends are brought together for insertion of the pin.
In order to facilitate understanding of not only the construction, but also the actual use of the compressor of the invention, reference is made below to one practical embodiment thereof, given merely by way of example and not in any way limiting the invention, with reference to the accompanying sectioned drawing. The e drawing shows a compressor 1 consisting of a hydraulic cylinder 2 which comprises the cylinder body 3 and an axial central piston rod 4 having at one end a piston 5 fitted on a cylindrical turned down end 6 of the rod 4.
A collar seal 7, held in position by a piston body 8 having a further seal 9 of Teflon (R.T.M.), is fitted on the piston 5.
All these elements which define the body of the piston 5 are held together by means of a screw 10 whose shank is threaded in a blind hole 11 extending axially along the cylindrical turned down end 6.
The body of the ram cylinder 3 has, at the end corresponding to the piston 5 a threaded cylindrical inner enlarged bore portion 12 in which is threaded a sleeve-like part 13 which has an internal recess 14 enclosing the head 15 of the screw 10. The same sleeve 13 has an emerging axially extending end portion 15a of smaller diameter which has an internal thread 16 which interacts in the removable fixing of a closing part 17 by means of a screw 18. The closing part 17 includes the fixed lug 18 of the compressor 1.
At its other end, the cylinder 3 has a guide sleeve 18a for the piston 4, this sleeve 18g being fixed by means of an external screw thread 19 to the threaded inner end zone 20 of the cylinder body 3.
Similarly, the piston rod 4 is fitted with a hydraulic collar seal 21 which abuts against the sleeve 18a and blocks the passage of the hydraulic oil, the collar seal 21 being positioned by means of a Seeger ring or clip 22 disposed in an inner circumferential recess 23 in the bore of the cylinder 3.
At this end the body of the cylinder has a scraper 24 whose function is to continuously wipe clean the piston rod.
The rod 4 emerging from the scraper is fitted with a part 25 defining the other lug 26 and fixed to the rod by means of a screw 27 threaded in the tapped axial blind hole 28 in the end of the rod.
The hydraulic oil inlet 29 is in the vicinity of the Seeger ring or clip 22.
Claims (7)
1. A track compressor for use in the fitting and removal of the corresponding track link pin disposed between its two neighbouring track links of a track for a tracked vehicle, said compressor consisting of a hydraulic ram cylinder closed at one of its ends and having fixed inside the other end a guide sleeve for the ram piston rod; wherein one end of said ram piston rod projects from the ram cylinder and has fitted thereon the support for a lug to position one of the links; wherein the ram cylinder has hydraulic fluid inlet and outlet means for regulating the position of the ram piston and hence the displacement of said lug, carried by the piston rod; and wherein the closed end of the ram cylinder includes means defining the fixed lug, said lug defining means being connected to the body of the ram cylinder by a part which is fixed at one end to an internally threaded end of the body of the ram cylinder by an enlarged bore thereof and is fixed at its other end to said lug defining means by way of an internal axial screw.
2. A compressor according to claim 1, wherein the ram piston comprises several elements positioned on the end of the piston rod by means of a screw which is threaded in an axially extending blind hole, and wherein the head of said screw is housed inside a central recess in said part.
3. A compressor according to claim 1 or 2, wherein said support for the lug is fixed to the piston rod by means of a screw whose head is recessed in said support and whose shank is threaded in an axially extending blind hole in the end of the piston rod.
4. A compressor according to any preceding claim, and including a hydraulic seal, having an external diameter approximately equal to that of the inside of the ram cylinder, fitted on the piston rod and abutting the free inner end of said guide sleeve.
5. A compressor according to claim 4 and including a retaining clip inside the ram cylinder and in a circumferential recess in the vicinity of said hydraulic seal.
6. A compressor according to any one of the preceding claims, wherein said part for connecting the lug to the ram cylinder is an externally threaded sleeve-like cylindrical part having a reduced diameter end emerging from the free end of the ram cylinder to support said lug carrying means mounted on the reduced diameter end by means of a screw threaded in an axial threaded hole in said reduced diameter end.
7. A track compressor constructed and adapted to operate substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9006492A GB2242232A (en) | 1990-03-22 | 1990-03-22 | Piston and cylinder device for holding together the end links of a tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9006492A GB2242232A (en) | 1990-03-22 | 1990-03-22 | Piston and cylinder device for holding together the end links of a tracked vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9006492D0 GB9006492D0 (en) | 1990-05-23 |
| GB2242232A true GB2242232A (en) | 1991-09-25 |
Family
ID=10673098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9006492A Withdrawn GB2242232A (en) | 1990-03-22 | 1990-03-22 | Piston and cylinder device for holding together the end links of a tracked vehicle |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2242232A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10249914A1 (en) * | 2002-10-26 | 2004-05-13 | Bayerische Motoren Werke Ag | Tool for fitting and removing of elastic drive belts on pulleys has a clamp fitting onto the outer edge of a pulley to move the belt between an outer stretched position and an inner working position |
| US8424981B1 (en) * | 2010-08-02 | 2013-04-23 | John Lawrence Stratton, Jr. | Tractor traction system |
| CN106828640A (en) * | 2017-01-16 | 2017-06-13 | 刘海燕 | A kind of crawler belt attachment means |
-
1990
- 1990-03-22 GB GB9006492A patent/GB2242232A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10249914A1 (en) * | 2002-10-26 | 2004-05-13 | Bayerische Motoren Werke Ag | Tool for fitting and removing of elastic drive belts on pulleys has a clamp fitting onto the outer edge of a pulley to move the belt between an outer stretched position and an inner working position |
| DE10249914B4 (en) * | 2002-10-26 | 2005-04-14 | Bayerische Motoren Werke Ag | hand tool |
| US8424981B1 (en) * | 2010-08-02 | 2013-04-23 | John Lawrence Stratton, Jr. | Tractor traction system |
| CN106828640A (en) * | 2017-01-16 | 2017-06-13 | 刘海燕 | A kind of crawler belt attachment means |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9006492D0 (en) | 1990-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |