CN201287772Y - Tensioning structure of working caterpillar band and working caterpillar band - Google Patents
Tensioning structure of working caterpillar band and working caterpillar band Download PDFInfo
- Publication number
- CN201287772Y CN201287772Y CNU2008201370858U CN200820137085U CN201287772Y CN 201287772 Y CN201287772 Y CN 201287772Y CN U2008201370858 U CNU2008201370858 U CN U2008201370858U CN 200820137085 U CN200820137085 U CN 200820137085U CN 201287772 Y CN201287772 Y CN 201287772Y
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- China
- Prior art keywords
- piston rod
- adapter plate
- bogie frame
- oscillating bearing
- cylinder body
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Abstract
The utility model discloses a tensioning mechanism of a moving caterpillar band and a moving caterpillar band, wherein the tensioning mechanism comprises a tensioning oil cylinder, a piston rod, a bracing frame and a bogie frame retaining plate, wherein the tensioning oil cylinder comprises a cylinder body, a piston is arranged in the cylinder body, a sealing element is arranged on the contact position of the piston with the cylinder body, the piston is used to divide the cylinder body into two portions, and the piston is connected with one end of the piston rod, any one of the piston rod or the cylinder body is connected with the bogie frame retaining plate through a hinge structure, and other one thereof is fixed on the bracing frame. The utility model has even circumference gaps between the cylinder body of the tensioning oil cylinder and the sealing element through the tensioning mechanism, has excellent sealing performance, can realize the reliability of the tensioning mechanism of a moving caterpillar band in long-term work, reduces the maintenance cost of users, reduces the processing difficulty of a bogie frame, saves cost, and is easily applied.
Description
Technical field
The utility model relates to the walking arrangement field, is specifically related to the tension structure and the traveling crawler of traveling crawler.
Background technology
At present, traveling crawler is widely used in the walking arrangement of operation, for example milling machine.Wherein traveling crawler has tension structure, in the walking process of equipment, realizes the walking of crawler belt by tension structure.As shown in Figure 1, usually connect by rigid construction between the parts of tension structure, tension structure comprises bogie frame adapter plate 140, piston rod adapter plate 1210, piston rod 120, tensioning hydro-cylinder 110, packing element 50, tensioning spring, locking mechanism, guide groove 30, bracing frame 130, wherein said piston rod 120 is captiveed joint with bogie frame adapter plate 140 by piston rod adapter plate 1210, tensioning hydro-cylinder 110 is captiveed joint with bracing frame 130 by locking mechanism, bracing frame 130 can slide on guide groove 30, packing element 50 is enclosed within outside the piston and is close on the sidewall of tensioning hydro-cylinder 110, the both sides of tensioning hydro-cylinder 110 are divided into two parts, and described two parts are not communicated with mutually.
Thereby because need be when installing with the parallel maintenance of the line of centers of piston rod 120 with the line of centers of tensioning hydro-cylinder 110, it is even with the circular gap of cylinder body 1110 to be enclosed between outer packing element 50 of piston rod 120 and the tensioning hydro-cylinder 110 leak-tight joint packing element 50, and tensioning hydro-cylinder 110 is oil tight.Because the line of centers of tensioning hydro-cylinder 110 is parallel with guide groove 30 line of centerss, piston rod 120 and mounting center line parallel, guide groove 30 line of centerss and mounting center line parallel during therefore initial the installation.But work along with traveling crawler; bracing frame 130 slides at guide groove 30 upper edge guide grooves 30; piston rod 120 is in tensioning hydro-cylinder 110; common like this because the various wearing and tearing that can not eliminate; thereby make guide groove 30 line of centerss be offset; no longer parallel with the mounting center line; packing element 50 is no longer even with the circular gap of cylinder body 1110 like this; thereby produce the phenomenon of tensioning hydro-cylinder 110 leakage of oils; make the crawler tensioning structural failure; must shut down and repair; cause more human cost loss and influence construction speed; and said structure requires very highly to the tension structure installation technology of traveling crawler, and guide groove 30 line of centerss and mounting center line have slightly not parallelly will produce oil leakage phenomenon.
The utility model content
In order to address the above problem, the utility model provides a kind of tension structure and traveling crawler, has solved the cylinder center line of tensioning hydro-cylinder and the problem that piston rod departs from the leakage of oil that causes in the tension structure.
In order to address the above problem, the utility model provides a kind of tension structure of traveling crawler, comprise tensioning hydro-cylinder, piston rod, bracing frame, bogie frame adapter plate, wherein said tensioning hydro-cylinder has cylinder body, has piston in the described cylinder body, the contact position of described piston and described cylinder body has packing element, and described piston is divided into two parts with described cylinder body; Described piston links to each other with piston rod one end, and any one in described piston rod and the described cylinder body is connected by articulated structure with described bogie frame adapter plate, and another is captiveed joint with support frame as described above.
Preferably, support frame as described above is captiveed joint with described cylinder body, described piston rod pass described bogie frame adapter plate with described bogie frame adapter plate bonded assembly one end, and described piston rod is connected with described bogie frame adapter plate by oscillating bearing.
Preferably, described oscillating bearing has inner ring and outer ring, the contact surface of described inner ring and outer ring is the part of sphere, and described inner ring can be along spherical rotation in the outer ring, described tension structure also comprises the piston rod adapter plate that is installed on the described piston rod, described piston rod adapter plate compresses described inner ring, and described outer ring is fixed on the bogie frame adapter plate, and piston rod passes in described oscillating bearing and described bogie frame adapter plate.
Preferably, described oscillating bearing and described piston rod bogie frame adapter plate are between described bogie frame adapter plate and described cylinder body.
Preferably, the end that described piston rod passes described bogie frame adapter plate has anchor fitting, have holddown spring between described anchor fitting and described bogie frame adapter plate, described holddown spring pulls to described oscillating bearing by described piston rod with described piston rod adapter plate.
Preferably, described oscillating bearing has inner ring and outer ring, the contact surface of described inner ring and outer ring is the part of sphere, and described inner ring can be along spherical rotation in the outer ring, described piston rod compresses described inner ring, described bogie frame adapter plate is connected with described outer ring, and piston rod passes in described oscillating bearing and described bogie frame adapter plate, described piston rod at the diameter of an end that compresses described oscillating bearing greater than the diameter that enters the end in the described oscillating bearing.
Preferably, described oscillating bearing is between described bogie frame adapter plate and described cylinder body.
Preferably, the end that described piston rod passes described bogie frame adapter plate has anchor fitting, have holddown spring between described anchor fitting and described bogie frame adapter plate, described holddown spring pulls to described oscillating bearing by described piston rod with described piston rod.
Preferably, described holddown spring is fixedly linked by nut and described anchor fitting and described bogie frame adapter plate.
Accordingly, the utility model also provides a kind of traveling crawler that comprises above-mentioned tension structure, comprises crawler belt, also comprises the bogie frame with guide groove, and bracing frame is connected with described guide groove, and slides along described guide groove; The bogie frame adapter plate is captiveed joint with bogie frame.
Compared with prior art, the utlity model has following advantage:
The utility model is because adopted later-model tension structure to realize that the circular gap of the cylinder body of tensioning hydro-cylinder and packing element is even, good airproof performance, the cylinder center line of tensioning hydro-cylinder and the problem that piston rod departs from the leakage of oil that causes in the tension structure have been solved, can realize the reliability of the long-term work of traveling crawler tension structure, reduce user's working service cost, reduce the bogie frame difficulty of processing, save cost, implement easily.
Description of drawings
By the more specifically explanation of the preferred embodiment of the present utility model shown in the accompanying drawing, above-mentioned and other purpose, feature and advantage of the present utility model will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing in proportion, focus on illustrating purport of the present utility model.
Fig. 1 is the scheme drawing of a kind of tension structure in the prior art;
Fig. 2 is the scheme drawing of tension structure one embodiment of the present utility model;
Fig. 3 is a traveling crawler scheme drawing of the present utility model.
Description of reference numerals:
The 110-tensioning hydro-cylinder, 120-piston rod, 130-bracing frame, 140-bogie frame adapter plate, 1110-cylinder body, 1120-piston, the 150-oscillating bearing, 1510-oscillating bearing inner ring, 1520-oscillating bearing outer ring, the 160-anchor fitting, 170-holddown spring, 10-crawler belt, the 30-guide groove, 40-bogie frame, 130-bracing frame, the 50-packing element, 1210-piston rod adapter plate
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented much to be different from alternate manner described here, and those skilled in the art can do similar popularization under the situation of the utility model intension.Therefore the utility model is not subjected to the restriction of following public concrete enforcement.
Embodiment one
Referring to figs. 2 and 3
In the present embodiment, the tension structure of traveling crawler comprises tensioning hydro-cylinder 110, piston rod 120, bracing frame 130, bogie frame adapter plate 140, wherein said tensioning hydro-cylinder 110 has cylinder body 1110, has piston 1120 in the described cylinder body 1110, described piston 1120 has packing element 50 with the contact position of described cylinder body 1110, and described piston 1120 is divided into two parts with described cylinder body 1110; Described piston rod 120 1 ends link to each other with piston 1120, and the other end passes bogie frame adapter plate 140; Support frame as described above 130 is captiveed joint with described tensioning hydro-cylinder 110, and described piston rod 120 passes described bogie frame adapter plate 140, is connected by oscillating bearing 150 with described bogie frame adapter plate 140 at described piston rod 120.
The present invention is described in detail below in conjunction with the application of tension structure in milling machine of present embodiment.
The tension structure of traveling crawler comprises tensioning hydro-cylinder 110, tensioning hydro-cylinder 110 has cylinder body 1110, have piston 1120 in the cylinder body 1110, described piston 1120 has packing element with the contact position of cylinder body 1110, and described piston 1120 is divided into discrete mutual disconnected two parts with cylinder body 1110.One side of piston 1120 links to each other with piston rod 120, the other end of piston rod 1120 stretches out outside the cylinder body 1110, pass bogie frame adapter plate 140, be connected by oscillating bearing 150 with bogie frame adapter plate 140 at piston rod 120, the oscillating bearing 150 that is utilized in this enforcement has inner ring 1510 and outer ring 1520, the contact surface of inner ring 1510 and outer ring 1520 is the part of sphere, and inner ring 1510 can be along spherical rotation in outer ring 1520.
The connection mode of piston rod 120 and bogie frame adapter plate 140 is specially: piston rod adapter plate 1210 is installed on the piston rod 120, piston rod adapter plate 1210 is enclosed within described piston rod 120 peripheries and captives joint with described piston rod 120, oscillating bearing 150 and piston rod adapter plate 1210 are between bogie frame adapter plate 140 and cylinder body 1110, piston rod adapter plate 1210 compresses oscillating bearing inner ring 1510, oscillating bearing outer ring 1520 is embedded in the bogie frame adapter plate 140, and piston rod 120 passes in oscillating bearing 150 and bogie frame adapter plate 140.
Preferably, the end that described piston rod 120 passes described bogie frame adapter plate 140 has anchor fitting 160, have holddown spring 170 between anchor fitting 160 and bogie frame adapter plate 140, described holddown spring 170 is fixedly linked by nuts and bolt and described anchor fitting 160 and described bogie frame adapter plate 140.Holddown spring 170 pulls to oscillating bearing 150 by piston rod 120 with piston rod 120, makes piston rod adapter plate 1210 compress oscillating bearing inner ring 1510.
In the present embodiment, the bogie frame 40 that milling machine also comprises milling equipment, car body and has guide groove 30, bracing frame 130 is connected with guide groove 30, slides along described guide groove 30; Bogie frame adapter plate 140 is captiveed joint with bogie frame 40, and described bogie frame 40 is fixed on the described car body, and described milling equipment is fixed on the described car body.
Because the line of centers of piston rod 120 is parallel with the line of centers of cylinder body 1110, therefore piston rod 120 is by leak-tight joint between the cylinder body 1110 of packing element 50 and tensioning hydro-cylinder 110, packing element 50 is even with the circular gap of piston rod 120, and tensioning hydro-cylinder 110 does not reveal oil.When milling machine need move forward, inject oil in the oil cylinder, piston 1120 slides at the sidewall of the promotion lower edge of oil cylinder body 1110, thereby promote the slip about cylinder body 1110 is done, thereby driving bracing frame 130 horizontally slips along guide groove 30, work a period of time after often under the influence of bracing frame 130, for example guide groove 30 is worn, the line of centers of cylinder body 1110 departs from the position of initial installation, in the prior art because piston 1120 passes through piston rod 120, bogie frame adapter plate 140 is captiveed joint with bogie frame 30, because bogie frame 30 maintains static, therefore piston 1120 can not be movable, thereby make that the line of centers of the line of centers of piston 1120 and cylinder body 1110 is no longer parallel, thereby 50 sealings of the packing element of piston 1120 positions are not tight, thereby cause leakage of oil, and in the present embodiment because also have oscillating bearing 150 and piston rod adapter plate 1210 between piston rod 120 and the bogie frame adapter plate 140, because the periphery of oscillating bearing 150 is installed on the bogie frame adapter plate 140, for example the periphery of oscillating bearing 150 is embedded in the bogie frame adapter plate 140 in the present embodiment, and piston rod adapter plate 1210 is enclosed within piston rod 120 outer and piston rod 120 fixed-link.Under the effect of holddown spring 170, piston rod 120 moves to the left, thereby piston rod adapter plate 1210 compresses the inner ring 1510 of oscillating bearing 150, because oscillating bearing inner ring 1510 can rotate along contact surface relative to oscillating bearing outer ring 1520, therefore when the line of centers of cylinder body 1110 departs from the home position, can drive its in-to-in piston 1120 rotates simultaneously, piston rod 120 and piston rod adapter plate 1210 can be along with rotations, thereby oscillating bearing inner ring 1510 rotates relative to oscillating bearing outer ring 1520, the bore dia that piston rod 120 passes is greater than the diameter of piston rod 120, just piston rod 120 does not contact with bogie frame adapter plate 140, thereby the piston rod 120 that passes bogie frame adapter plate 140 is also followed freely and is rotated, therefore make piston 1120 line of centerss rotate identical angle with cylinder body 1110 line of centerss, thus keeping parallelism still.
Except that the foregoing description, also described piston rod can be captiveed joint with support frame as described above, described cylinder body is connected by articulated structure with described bogie frame adapter plate.
Described articulated structure also can for example have the inner ring and the outer ring that are connected for other structure articulated structures except that oscillating bearing, and the structure that can rotate relative to the outer ring of inner ring.
Embodiment two
Referring to figs. 2 and 3
In the present embodiment, the tension structure of traveling crawler comprises tensioning hydro-cylinder 110, piston rod 120, bracing frame 130, bogie frame adapter plate 140, wherein said tensioning hydro-cylinder 110 has cylinder body 1110, has piston 1120 in the described cylinder body 1110, described piston 1120 has packing element 50 with the contact position of described cylinder body 1110, and described piston 1120 is divided into two parts with described cylinder body 1110; Described piston rod 120 1 ends link to each other with piston 1120, and the other end passes bogie frame adapter plate 140; Support frame as described above 130 is captiveed joint with described tensioning hydro-cylinder 110, and described piston rod 120 passes described bogie frame adapter plate 140, is connected by oscillating bearing 150 with described bogie frame adapter plate 140 at described piston rod 120.
Do not giving unnecessary details with embodiment one identical part, different is:
Described piston rod 120 compresses oscillating bearing inner ring 1510, described bogie frame adapter plate 140 is connected with oscillating bearing outer ring 1520, and piston rod 120 passes in oscillating bearing 150 and bogie frame adapter plate 140, piston rod 120 at the diameter of an end that compresses oscillating bearing 150 greater than the diameter that enters the end in the oscillating bearing 150.
Oscillating bearing 150 is between bogie frame adapter plate 140 and cylinder body 1110.
Below in conjunction with the application of the tension structure of the traveling crawler of this enforcement, present embodiment is elaborated at tension structure.
Because described piston rod 120 at the diameter of an end that compresses described oscillating bearing 150 greater than the diameter that enters the end in the described oscillating bearing 150.Just piston rod 120 has step with oscillating bearing 150 bonded assembly positions, and step just in time is stuck on the inner ring 1510 of oscillating bearing 150 like this, compresses inner ring 1510, and piston rod 120 thinner parts are passed through in oscillating bearing 150.Described step realized with embodiment one in the same effect of piston rod adapter plate 1210.And structure is simpler.
Except that the structure described in the foregoing description, described oscillating bearing 150 and described piston rod 120 also can be positioned at the left side of described bogie frame adapter plate 140, the relative position of oscillating bearing inner ring 1510 and oscillating bearing outer ring 1520 and the position opposite in the foregoing description.
Described oscillating bearing 150 also can be the oscillating bearing of other structure, can flexibly connect with bogie frame adapter plate 140 as long as can satisfy piston rod 120, makes piston rod 120 can depart from the vertical direction of bogie frame adapter plate 140.
The tension structure of traveling crawler also can not comprise anchor fitting 160 and holddown spring 170, and adopts other method well known to those skilled in the art, and piston rod adapter plate 1210 is connected with oscillating bearing inner ring 1510.
Embodiment three
A kind of traveling crawler that comprises the tension structure among the foregoing description one and the embodiment two, it comprises crawler belt 10, also comprises the bogie frame 40 with guide groove 30, bracing frame 130 is connected with described guide groove 30, and slides along described guide groove 30; Bogie frame adapter plate 140 is captiveed joint with bogie frame 40.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all still belongs in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.
Claims (10)
1, a kind of tension structure of traveling crawler comprises tensioning hydro-cylinder, piston rod, bracing frame, bogie frame adapter plate, wherein
Described tensioning hydro-cylinder has cylinder body, has piston in the described cylinder body, and the contact position of described piston and described cylinder body has packing element, and described piston is divided into two parts with described cylinder body;
Described piston links to each other with piston rod one end, it is characterized in that,
In described piston rod and the described cylinder body any one is connected by articulated structure with described bogie frame adapter plate, and another is captiveed joint with support frame as described above.
2, tension structure according to claim 1, it is characterized in that, support frame as described above is captiveed joint with described cylinder body, described piston rod pass described bogie frame adapter plate with described bogie frame adapter plate bonded assembly one end, and described piston rod is connected with described bogie frame adapter plate by oscillating bearing.
3, tension structure according to claim 2, it is characterized in that, described oscillating bearing has inner ring and outer ring, the contact surface of described inner ring and outer ring is the part of sphere, and described inner ring can be along spherical rotation in the outer ring, and described tension structure also comprises the piston rod adapter plate that is installed on the described piston rod, and described piston rod adapter plate compresses described inner ring, described outer ring is fixed on the bogie frame adapter plate, and piston rod passes in described oscillating bearing and described bogie frame adapter plate.
4, tension structure according to claim 3 is characterized in that, described oscillating bearing and described piston rod bogie frame adapter plate are between described bogie frame adapter plate and described cylinder body.
5, tension structure according to claim 4, it is characterized in that, the end that described piston rod passes described bogie frame adapter plate has anchor fitting, have holddown spring between described anchor fitting and described bogie frame adapter plate, described holddown spring pulls to described oscillating bearing by described piston rod with described piston rod adapter plate.
6, tension structure according to claim 1 is characterized in that,
Described oscillating bearing has inner ring and outer ring, the contact surface of described inner ring and outer ring is the part of sphere, and described inner ring can be along spherical rotation in the outer ring, described piston rod compresses described inner ring, described bogie frame adapter plate is connected with described outer ring, and piston rod passes in described oscillating bearing and described bogie frame adapter plate, described piston rod at the diameter of an end that compresses described oscillating bearing greater than the diameter that enters the end in the described oscillating bearing.
7, tension structure according to claim 6 is characterized in that, described oscillating bearing is between described bogie frame adapter plate and described cylinder body.
8, tension structure according to claim 6, it is characterized in that, the end that described piston rod passes described bogie frame adapter plate has anchor fitting, have holddown spring between described anchor fitting and described bogie frame adapter plate, described holddown spring pulls to described oscillating bearing by described piston rod with described piston rod.
9, tension structure according to claim 8 is characterized in that, described holddown spring is fixedly linked by nuts and bolt and described anchor fitting and described bogie frame adapter plate.
10, a kind of traveling crawler that comprises any described tension structure of claim 1 to 9 comprises crawler belt, it is characterized in that, also comprises the bogie frame with guide groove, and bracing frame is connected with described guide groove, and slides along described guide groove; The bogie frame adapter plate is captiveed joint with bogie frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201370858U CN201287772Y (en) | 2008-10-20 | 2008-10-20 | Tensioning structure of working caterpillar band and working caterpillar band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201370858U CN201287772Y (en) | 2008-10-20 | 2008-10-20 | Tensioning structure of working caterpillar band and working caterpillar band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287772Y true CN201287772Y (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201370858U Expired - Fee Related CN201287772Y (en) | 2008-10-20 | 2008-10-20 | Tensioning structure of working caterpillar band and working caterpillar band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287772Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152816A (en) * | 2011-03-22 | 2011-08-17 | 三一重机有限公司 | Caterpillar tensioning and buffering device for caterpillar type walking machinery |
-
2008
- 2008-10-20 CN CNU2008201370858U patent/CN201287772Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152816A (en) * | 2011-03-22 | 2011-08-17 | 三一重机有限公司 | Caterpillar tensioning and buffering device for caterpillar type walking machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suote Transmission Equipment Co., Ltd. Assignor: Sanyi Heavy Industry Co., Ltd. Contract record no.: 2010320000359 Denomination of utility model: Tensioning structure of working caterpillar band and working caterpillar band Granted publication date: 20090812 License type: Exclusive License Record date: 20100407 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Suote Transmission Equipment Co., Ltd. Assignor: Sanyi Heavy Industry Co., Ltd. Contract record no.: 2010320000359 Date of cancellation: 20110402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20151020 |
|
| EXPY | Termination of patent right or utility model |