CN204775566U - Track caterpillar track of a tractor pivort fixation structure - Google Patents
Track caterpillar track of a tractor pivort fixation structure Download PDFInfo
- Publication number
- CN204775566U CN204775566U CN201520468572.2U CN201520468572U CN204775566U CN 204775566 U CN204775566 U CN 204775566U CN 201520468572 U CN201520468572 U CN 201520468572U CN 204775566 U CN204775566 U CN 204775566U
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- CN
- China
- Prior art keywords
- pin
- chain rail
- tractor
- nut
- caterpillar track
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- 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.)
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Abstract
The utility model discloses a track caterpillar track of a tractor pivort fixation structure, include: two first caterpillar tracks of a tractor and two second caterpillar tracks of a tractor, each first caterpillar track of a tractor is close to each the second caterpillar track of a tractor, simultaneously, two first caterpillar track of a tractor each other just to and leave the clearance, wherein, include: a round pin axle sleeve, the round pin axle sleeve is located two between the first caterpillar track of a tractor, and the both ends of round pin axle sleeve run through two respectively first caterpillar track of a tractor, a round pin axle, round pin axle install in in the round pin axle sleeve, and the both ends of round pin axle run through two respectively first caterpillar track of a tractor and two the second caterpillar track of a tractor, still include: an at least nut, the nut with an arbitrary end screw thread connection of round pin axle, and the nut is close to the second caterpillar track of a tractor. Use the utility model relates to a track caterpillar track of a tractor pivort fixation structure through at round pin axle both ends processing screw thread, makes its and nut accordant connection, makes things convenient for the dismantlement of nut, adopts the dismantlement of clearance fit, convenient round pin axle moreover between round pin axle and the round pin axle sleeve.
Description
Technical field
The utility model relates to a kind of technical field of crawler of excavator chain rail, particularly relates to a kind of fixing structure for pin shaft of crawler of excavator chain rail.
Background technology
Current crawler belt forms according to the dead pin of caterpillar block quantity by an active pin and varying number.In excavating machine routine, often need to carry out certain dismounting to crawler belt safeguard, need to dismantle the active pin of crawler belt, active pin often adopts two kinds of fixed forms: the first is interference fit, i.e. crawler belt bearing pin and track pin axle sleeve interference fit, advantage is that in use bearing pin can not produce relative rotation, safe reliability is high, and shortcoming is that dismounting comparatively bothers, and brings very large trouble in use procedure after sale service engineering Shi Genghuan.The second is that T-shaped pin coordinates, and advantage is easy accessibility, and shortcoming is that in use T-shaped pin easily rotates, and drops.
In order to solve above-mentioned shortcoming, the active pin fixing means of yi word pattern interference fit that what existing crawler belt was the most frequently used is, Fig. 1 is the schematic diagram of existing caterpillar chain rail fixing structure for pin shaft, and Fig. 2 is the cutaway view of existing caterpillar chain rail fixing structure for pin shaft, refers to shown in Fig. 1 and Fig. 2.Include two first chain rail 11 and two second chain rails 12, each first chain rail 11 is near each the second chain rail 12, and meanwhile, two first chain rails 11 are facing each other and leave gap.One pin sleeve 13, pin sleeve 13 is between two first chain rails 11, and two first chain rails 11 are run through at the two ends of pin sleeve 13 respectively.One bearing pin 14, bearing pin 14 is installed in pin sleeve 13, and two first chain rail 11 and two second chain rails 12 are run through at the two ends of bearing pin 14 respectively, and meanwhile, bearing pin 14 and pin sleeve 13 adopt interference fit.
Existing caterpillar chain rail fixing structure for pin shaft improves active pin fixed form, for convenience detach, and reasonably save after sale reprocess the time, but there is following shortcoming: disassembling and assembling pin shaft inconvenience, bearing pin and pin sleeve are interference fit, during past-sale service dismounting service engineering Shi Jingchang it is carried out that fire is roasting could by its dismounting.
Utility model content
The purpose of this utility model is to provide a kind of caterpillar chain rail fixing structure for pin shaft, to solve existing caterpillar chain rail fixing structure for pin shaft, because bearing pin and pin sleeve are interference fit, causes the problem of disassembling and assembling pin shaft inconvenience.
To achieve these goals, the technical scheme that the utility model is taked is:
A kind of caterpillar chain rail fixing structure for pin shaft, comprising: two first chain rails and two second chain rails, and the first chain rail described in each is near the second chain rail described in each, and meanwhile, the first chain rail described in two is facing each other and leave gap; Wherein, comprising: a pin sleeve, described pin sleeve is described in two between first chain rail, and the first chain rail described in two is run through at the two ends of described pin sleeve respectively; One bearing pin, described bearing pin is installed in described pin sleeve, and the second chain rail described in the first chain rail and two described in two is run through at the two ends of described bearing pin respectively; Also comprise: at least one nut, described nut is connected with any threaded one end of described bearing pin, and described nut is near described second chain rail.
Above-mentioned a kind of caterpillar chain rail fixing structure for pin shaft, wherein, two pads, described second chain rail just offers spacer groove to the end face of described first chain rail, pad described in two is sheathed on the two ends of described bearing pin, and pad described in two be matched with the second chain rail described in two two described in spacer groove.
Above-mentioned a kind of caterpillar chain rail fixing structure for pin shaft, wherein, two flat keys, two keyways are offered at the two ends of described bearing pin respectively, and flat key described in two mates mutually with keyway described in two.
Above-mentioned a kind of caterpillar chain rail fixing structure for pin shaft, wherein, flat key described in two lays respectively at the outside of pad described in two.
Above-mentioned a kind of caterpillar chain rail fixing structure for pin shaft, wherein, described bearing pin and described pin sleeve are free-running fit.
Above-mentioned a kind of caterpillar chain rail fixing structure for pin shaft, wherein, described nut is two, and nut described in two is threaded with the two ends of described bearing pin respectively, and nut described in two is respectively near the second chain rail described in two.
The utility model is owing to have employed above-mentioned technology, and the good effect making it compared with prior art to have is:
(1) by bearing pin two ends machining screw, make it mate with nut and be connected, facilitate the dismounting of nut, and adopt free-running fit between bearing pin and pin sleeve, facilitate the dismounting of bearing pin.
(2) on bearing pin, offer keyway, make it mate with flat key and be connected, prevented the circumferential movement of bearing pin with this by flat key.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing caterpillar chain rail fixing structure for pin shaft;
Fig. 2 is the cutaway view of existing caterpillar chain rail fixing structure for pin shaft;
Fig. 3 is the schematic diagram of the first embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model;
Fig. 4 is the cutaway view of the first embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model;
Fig. 5 is the schematic diagram of the second embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model;
Fig. 6 is the cutaway view of the second embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model.
In accompanying drawing: 11, the first chain rail; 12, the second chain rail; 13, pin sleeve; 14, bearing pin; 2, the first chain rail; 3, the second chain rail; 4, pin sleeve; 5, bearing pin; 6, nut; 7, pad; 71, spacer groove; 8, flat key; 81, keyway.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as restriction of the present utility model.
First embodiment:
Fig. 3 is the schematic diagram of the first embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model, and Fig. 4 is the cutaway view of the first embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model, refers to shown in Fig. 3 to Fig. 4.A kind of caterpillar chain rail fixing structure for pin shaft of the present utility model, includes two first chain rail 2 and two second chain rails 3, and each first chain rail 2 is near each the second chain rail 3, and meanwhile, the setting facing each other of two first chain rails 2 also leaves gap.One pin sleeve 4, pin sleeve 4 is between two first chain rails 2, and two first chain rails 2 are run through at the two ends of pin sleeve 4 respectively, and meanwhile, the two ends of pin sleeve 4 are near two second chain rails 3.One bearing pin 5, bearing pin 5 is installed in pin sleeve 4, and two first chain rail 2 and two second chain rails 3 are run through at the two ends of bearing pin 5 respectively, and meanwhile, the two ends of bearing pin 5 stretch out.A kind of caterpillar chain rail fixing structure for pin shaft of the present utility model also includes a nut 6, and nut 6 is connected with any threaded one end of bearing pin 5, and nut 6 is near the second chain rail 3 of this bearing pin 5 coupling end.
The utility model also has following embodiment on the basis of the above:
In further embodiment of the present utility model, please continue see shown in Fig. 3 and Fig. 4.Include two pads 7, each second chain rail 3 just offers spacer groove 71 to the end face of each the first chain rail 2, and two pads 7 are sheathed on the two ends of bearing pin 5, and two pads 7 are matched with in two spacer grooves 71 of two second chain rails 3.
In further embodiment of the present utility model, comprise two flat keys 8, the two ends of bearing pin 5 are offered two keyway 81, two flat keys 8 respectively and are mutually mated with two keyways 81.Meanwhile, two flat keys 8 lay respectively at the outside of two pads 7.
In further embodiment of the present utility model, bearing pin 5 and pin sleeve 4 are free-running fit.
In further embodiment of the present utility model, for a preferred embodiment, nut 6 is threaded with the left end of bearing pin 5, and nut 6 is near the second chain rail 3 of bearing pin 5 left end.
Second embodiment:
Fig. 5 is the schematic diagram of the second embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model, and Fig. 6 is the cutaway view of the second embodiment of a kind of caterpillar chain rail fixing structure for pin shaft of the present utility model, refers to shown in Fig. 5 and Fig. 6.A kind of caterpillar chain rail fixing structure for pin shaft of the present utility model, includes two first chain rail 2 and two second chain rails 3, and each first chain rail 2 is near each the second chain rail 3, and meanwhile, the setting facing each other of two first chain rails 2 also leaves gap.One pin sleeve 4, pin sleeve 4 is between two first chain rails 2, and two first chain rails 2 are run through at the two ends of pin sleeve 4 respectively, and meanwhile, the two ends of pin sleeve 4 are near two second chain rails 3.One bearing pin 5, bearing pin 5 is installed in pin sleeve 4, and two first chain rail 2 and two second chain rails 3 are run through at the two ends of bearing pin 5 respectively, and meanwhile, the two ends of bearing pin 5 stretch out.A kind of caterpillar chain rail fixing structure for pin shaft of the present utility model also includes two nut 6, two nuts 6 and is threaded with the two ends of bearing pin 5 respectively, and two nuts 6 are respectively near two second chain rails 3.
The utility model also has following embodiment on the basis of the above:
In further embodiment of the present utility model, please continue see shown in Fig. 5 and Fig. 6.Include two pads 7, each second chain rail 3 just offers spacer groove 71 to the end face of each the first chain rail 2, and two pads 7 are sheathed on the two ends of bearing pin 5, and two pads 7 are matched with in two spacer grooves 71 of two second chain rails 3.
In further embodiment of the present utility model, comprise two flat keys 8, the two ends of bearing pin 5 are offered two keyway 81, two flat keys 8 respectively and are mutually mated with two keyways 81.Meanwhile, two flat keys 8 lay respectively at the outside of two pads 7.
In further embodiment of the present utility model, bearing pin 5 and pin sleeve 4 are free-running fit.
The foregoing is only the utility model preferred embodiment; not thereby embodiment of the present utility model and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilization the utility model specification sheetss and diagramatic content and apparent change obtain in protection domain of the present utility model.
Claims (6)
1. crawler belt Caterpillar track hinge pin (5) fixed sturcture, comprising:
Two first chain rails (2) and two second chain rails (3), the second chain rail (3) described in each of the first chain rail (2) described in each, meanwhile, the first chain rail (2) described in two is facing each other and leave gap; It is characterized in that, comprising:
One pin sleeve (4), described pin sleeve (4) is positioned at described in two between first chain rail (2), and the first chain rail (2) described in two is run through at the two ends of described pin sleeve (4) respectively;
One bearing pin (5), described bearing pin (5) is installed in described pin sleeve (4), and the two ends of described bearing pin (5) run through the first chain rail (2) described in two and the second chain rail (3) described in two respectively; Also comprise:
At least one nut (6), described nut (6) is connected with any threaded one end of described bearing pin (5), and described nut (6) is near described second chain rail (3).
2. crawler belt Caterpillar track hinge pin (5) fixed sturcture according to claim 1, it is characterized in that, two pads (7), described second chain rail (3) just offers spacer groove (71) to the end face of described first chain rail (2), pad described in two (7) is sheathed on the two ends of described bearing pin (5), and pad described in two (7) be matched with the second chain rail (3) described in two two described in spacer groove (71).
3. crawler belt Caterpillar track hinge pin (5) fixed sturcture according to claim 2, it is characterized in that, two flat keys (8), two keyways (81) are offered at the two ends of described bearing pin (5) respectively, and flat key described in two (8) mates mutually with keyway described in two (81).
4. crawler belt Caterpillar track hinge pin (5) fixed sturcture according to claim 3, it is characterized in that, flat key described in two (8) lays respectively at the outside of pad described in two (7).
5. crawler belt Caterpillar track hinge pin (5) fixed sturcture according to claim 1, it is characterized in that, described bearing pin (5) and described pin sleeve (4) are free-running fit.
6. crawler belt Caterpillar track hinge pin (5) fixed sturcture according to claim 1, it is characterized in that, described nut (6) is two, nut described in two (6) is threaded with the two ends of described bearing pin (5) respectively, and nut described in two (6) is respectively near the second chain rail (3) described in two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468572.2U CN204775566U (en) | 2015-07-02 | 2015-07-02 | Track caterpillar track of a tractor pivort fixation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468572.2U CN204775566U (en) | 2015-07-02 | 2015-07-02 | Track caterpillar track of a tractor pivort fixation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204775566U true CN204775566U (en) | 2015-11-18 |
Family
ID=54515669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520468572.2U Expired - Fee Related CN204775566U (en) | 2015-07-02 | 2015-07-02 | Track caterpillar track of a tractor pivort fixation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204775566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763050A (en) * | 2016-11-29 | 2017-05-31 | 徐州徐工基础工程机械有限公司 | It is a kind of can two-way fast assembling-disassembling pin shaft structure |
| CN110027641A (en) * | 2019-04-22 | 2019-07-19 | 中山安信通机器人制造有限公司 | A kind of anti-loose method for maintaining of crawler belt |
-
2015
- 2015-07-02 CN CN201520468572.2U patent/CN204775566U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763050A (en) * | 2016-11-29 | 2017-05-31 | 徐州徐工基础工程机械有限公司 | It is a kind of can two-way fast assembling-disassembling pin shaft structure |
| CN106763050B (en) * | 2016-11-29 | 2018-11-23 | 徐州徐工基础工程机械有限公司 | It is a kind of can two-way fast assembling-disassembling pin shaft structure |
| CN110027641A (en) * | 2019-04-22 | 2019-07-19 | 中山安信通机器人制造有限公司 | A kind of anti-loose method for maintaining of crawler belt |
| CN110027641B (en) * | 2019-04-22 | 2020-07-10 | 中山安信通机器人制造有限公司 | Anti-loosening maintenance method for crawler belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |