CN202783476U - Teeth piling resistant straining mechanism of four-wheel-drive crawler travel unit - Google Patents
Teeth piling resistant straining mechanism of four-wheel-drive crawler travel unit Download PDFInfo
- Publication number
- CN202783476U CN202783476U CN 201220405034 CN201220405034U CN202783476U CN 202783476 U CN202783476 U CN 202783476U CN 201220405034 CN201220405034 CN 201220405034 CN 201220405034 U CN201220405034 U CN 201220405034U CN 202783476 U CN202783476 U CN 202783476U
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- wheel
- crawler
- straining
- transition
- transition wheel
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Abstract
The utility model relates to a teeth piling resistant straining mechanism of a four-wheel-drive crawler travel unit. A transition wheel device is arranged between a first thrust wheel of a straining frame of the four-wheel-drive crawler travel unit and a driving wheel. The transition wheel device is fixed on the crawler straining frame and is capable of changing the distance to the first thrust wheel on a straining side according to the change of straining distance and not changing the distance to the driving wheel on the straining side. The transition wheel on the straining frame is adopted to limit the upward displacement of a crawler plate. The crawler plate continues to transmit through the rolling friction of the transition wheel along with the transmission of a crawler chain and the pressing from the crawler plate to the transition wheel. According to the teeth piling resistant straining mechanism of the four-wheel-drive crawler travel unit, the transition wheel device is arranged on the straining side of the four-wheel-drive crawler travel unit. The transition wheel device is capable of improving the teeth piling phenomenon of the crawler plate on the straining side, reducing friction damage between the crawler frame and the crawler plate, reducing the frictional resistance of a travel system, improving the service life of the crawler plate and the crawler frame and improving the travel efficiency.
Description
(1) technical field
The utility model relates to track unit, particularly the stretching device of 4 wheel driven track unit.
(2) background technology
In general, the 4 wheel driven track unit, load carrying ability is larger, and track frame length is large, and caterpillar block quantity is many in the single-crawler single chain, and the gap cumulant between caterpillar block and the crawler belt axle is larger.When creeper undercarriage is walked to the tensioner direction, the below of track tensioning side drive wheel, caterpillar block can produce the slack list phenomenon.And because the caterpillar block of track tensioning side the first caterpillar wheel below is killed by the first caterpillar wheel, the slack list phenomenon is just more serious.Along with the increase of tensioner frame tensioner distance, the distance of the first caterpillar wheel of the drive wheel on the tensioner frame and close tensioner frame also increases thereupon.Its distance may surpass three caterpillar block pitches.Like this when creeper undercarriage is walked to the tensioner direction, between the first caterpillar wheel of the drive wheel of tensioner side and tensioner side, just produce easily heap tooth phenomenon.In order to solve heap tooth phenomenon, guide plate of welding between the first caterpillar wheel of the drive wheel of tensioner side and tensioner side can effectively prevent from piling the tooth phenomenon so usually.But this structure also can force guide plate and caterpillar block to produce cliding friction when preventing piling the tooth phenomenon.Guide plate and wearing and tearing caterpillar block not only wear and tear.So not only increase the friction drag of running gear, reduced travel efficiency.And greatly reduced service life of caterpillar block, cause the maintenance cost to increase.
(3) summary of the invention
The purpose of this utility model provides a kind of heap tooth phenomenon that not only can effectively prevent track chain, and can reduce the friction drag of running gear, reduces the anti-stretching device of piling tooth of 4 wheel driven track unit to the frictionally damage of caterpillar block.
The technical scheme of employing of the present utility model is: the stretching device of the anti-heap of 4 wheel driven track unit tooth is between the first caterpillar wheel of 4 wheel driven track unit tensioner frame and drive wheel a transition wheel device to be installed.
The transition wheel device is fixed on the track tensioning frame, can be with the variation of tensioning distance, and the distance of change and tensioner side the first caterpillar wheel does not change the distance with the tensioner side drive wheel.By the transition wheel on the tensioner frame, the displacement upward of restriction caterpillar block.Along with the extruding to transition wheel of the transmission of caterpillar chain and caterpillar block, caterpillar block continues to transmit by the friction of rolling of transition wheel.
The utility model increases a transition wheel device in the tensioner side of 4 wheel driven track unit, this device can improve the heap tooth phenomenon of tensioner side caterpillar block, reduce the frictionally damage of track frame and caterpillar block, and can reduce the friction drag of running gear, improve the service life of caterpillar block and track frame, improve travel efficiency.
(4) description of drawings
Fig. 1 is installation site of the present utility model scheme drawing;
Fig. 2 is the A-A cutaway view of Fig. 1, the i.e. structural representation of the utility model transition wheel device.
(5) specific embodiment
The utility model is that a transition wheel device 2 is installed between the first caterpillar wheel of 4 wheel driven track unit tensioner frame 1 and drive wheel 3, transition wheel device 2 mainly is made of transition wheel 8, adapter shaft 6 and wheel carrier 10, transition wheel device 2 is fixed on the tensioner frame 1 by wheel carrier 10, adapter shaft 6 is fixed on the wheel carrier 10 by clamp 5 and bolt 4, between transition wheel 8 and the wheel carrier 10 pad 9 is installed; In transition wheel 8 inside wear-resisting copper sheathing 7 is housed, transition wheel 8 and wear-resisting copper sheathing 7 interference assembling.Be provided with oil duct in adapter shaft 6 inside, adapter shaft 6 spindle noses are provided with lubricating cup 11, and lubricating cup 11 links to each other with the oil duct of adapter shaft 6.Can with the central oiling equipment access of peripheral hardware to lubricating cup 11, guarantee the lubricated of whole transition wheel device 2.
Claims (3)
1. the stretching device of the anti-heap of 4 wheel driven track unit tooth is characterized in that: between the first caterpillar wheel of 4 wheel driven track unit tensioner frame (1) and drive wheel (3) a transition wheel device (2) is installed.
2. 4 wheel driven track unit according to claim 1 is prevented the stretching device of heap tooth, it is characterized in that: said transition wheel device (2) mainly is made of transition wheel (8), adapter shaft (6) and wheel carrier (10), transition wheel device (2) is fixed on the tensioner frame (1) by wheel carrier (10), adapter shaft (6) is fixed on the wheel carrier (10) by clamp (5) and bolt (4), between transition wheel (8) and the wheel carrier (10) pad (9) is installed; In transition wheel (8) inside wear-resisting copper sheathing (7) is housed, transition wheel (8) and wear-resisting copper sheathing (7) interference assembling.
3. 4 wheel driven track unit according to claim 2 is prevented the stretching device of heap tooth, and it is characterized in that: be provided with oil duct in adapter shaft (6) inside, adapter shaft (6) spindle nose is provided with lubricating cup (11), and lubricating cup (11) links to each other with the oil duct of adapter shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405034 CN202783476U (en) | 2012-08-16 | 2012-08-16 | Teeth piling resistant straining mechanism of four-wheel-drive crawler travel unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405034 CN202783476U (en) | 2012-08-16 | 2012-08-16 | Teeth piling resistant straining mechanism of four-wheel-drive crawler travel unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202783476U true CN202783476U (en) | 2013-03-13 |
Family
ID=47810792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405034 Expired - Lifetime CN202783476U (en) | 2012-08-16 | 2012-08-16 | Teeth piling resistant straining mechanism of four-wheel-drive crawler travel unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202783476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738425A (en) * | 2013-12-26 | 2014-04-23 | 柳州正菱集团有限公司 | Method for improving drag chain wheel seat |
| CN103921855A (en) * | 2014-04-22 | 2014-07-16 | 徐工集团工程机械股份有限公司 | Compression roller device for crawler track unit, crawler track unit and hoisting equipment |
-
2012
- 2012-08-16 CN CN 201220405034 patent/CN202783476U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738425A (en) * | 2013-12-26 | 2014-04-23 | 柳州正菱集团有限公司 | Method for improving drag chain wheel seat |
| CN103921855A (en) * | 2014-04-22 | 2014-07-16 | 徐工集团工程机械股份有限公司 | Compression roller device for crawler track unit, crawler track unit and hoisting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |