CN214296197U - Track wheel for crawler-type engineering machinery - Google Patents
Track wheel for crawler-type engineering machinery Download PDFInfo
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- CN214296197U CN214296197U CN202120234260.0U CN202120234260U CN214296197U CN 214296197 U CN214296197 U CN 214296197U CN 202120234260 U CN202120234260 U CN 202120234260U CN 214296197 U CN214296197 U CN 214296197U
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Abstract
The utility model discloses a thrust wheel for crawler-type engineering machinery, which comprises a wheel shaft, a left shaft seat is arranged at the outer side of the left end of the wheel shaft, a right shaft seat is arranged at the outer side of the right end of the wheel shaft, the left shaft seat and the right shaft seat are fixedly connected with the wheel shaft through a pin shaft, annular grooves are respectively arranged on the circumferential surfaces at two ends of the wheel shaft, sealing rings are arranged at the inner sides of the annular grooves, the wheel shaft is respectively and hermetically connected with the left shaft seat and the right shaft seat through the sealing rings, a wheel body is arranged between the left shaft seat and the right shaft seat and at the outer side of the wheel shaft, bushings are respectively arranged between the two ends of the wheel body and the wheel shaft, floating oil seals are respectively arranged between the two ends of the wheel body and the left shaft seat and the right shaft seat, a tread coaxial with the wheel shaft is arranged on the wheel body, the utility model realizes the effective reduction of the oil leakage fault of the floating oil seals, the service life is greatly prolonged, the smaller axial friction can also reduce the rotation resistance of the wheel body, and the rotation of the thrust wheel is more flexible, reliable and durable function.
Description
Technical Field
The utility model relates to an engineering machine tool technical field, concretely relates to crawler-type is thrust wheel for engineering machine tool.
Background
The thrust wheel is a common part of crawler-type engineering machinery, is one of four wheels and one belt, is arranged below an equipment chassis and is used for supporting the whole machine and transmitting the weight of the whole machine to a crawler. When the crawler-type engineering machinery moves, the treads of the thrust wheels roll on the guide rails (caterpillar track sections) of the crawler, and the rims of the thrust wheels can be used for limiting the transverse movement of the crawler and preventing the crawler from transversely slipping. In order to reduce the abrasion of the wheel shaft and the bush, lubricating oil is injected into the thrust wheel, and a floating oil seal is adopted between the wheel body and the shaft seat for dynamic sealing. The wheel body is all located to current thrust wheel rim, structure as an organic whole with the wheel body, when equipment turned or the track received transverse impact, the caterpillar track section of track can apply great axial force to the wheel body through the rim, this can make and be located the wheel body side and along with violent friction between the together pivoted bush turn-ups of wheel body and the axle bed, produce wearing and tearing, the axial positioning clearance of increase wheel body, and crescent clearance can lead to the floating oil blanket to become invalid, cause thrust wheel oil leak trouble, seriously influence thrust wheel life.
Therefore, the thrust wheel which reduces the rotation resistance of the wheel body, can effectively reduce oil leakage faults and prolongs the service life is the problem to be solved by the inventor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a crawler-type is thrust wheel for engineering machine tool, can realize reducing wheel body rotating resistance, can reduce the oil leak trouble effectively, promote life's function.
The utility model provides a technical scheme that its technical problem adopted is: a thrust wheel for crawler-type engineering machinery comprises a wheel shaft, a left shaft seat is arranged on the outer side of the left end of the wheel shaft, a right shaft seat is arranged on the outer side of the right end of the wheel shaft, the left shaft seat and the right shaft seat are fixedly connected with the wheel shaft through a pin shaft, the circumferential surfaces of two ends of the wheel shaft are respectively provided with an annular groove, the inner side of the annular groove is provided with a sealing ring, the wheel shaft is respectively connected with the left shaft seat and the right shaft seat in a sealing way through a sealing ring, a wheel body is arranged between the left shaft seat and the right shaft seat and outside the wheel shaft, bushings are arranged between the two ends of the wheel body and the wheel shaft, floating oil seals are arranged between the two ends of the wheel body and the left shaft seat and the right shaft seat, the wheel body is provided with a tread coaxial with the wheel shaft, rims are arranged between the wheel body and the left shaft seat and between the wheel body and the right shaft seat, the rims are axially adjacent to the wheel body, and the rims are protruded relative to the tread in the radial direction.
Furthermore, the wheel rim is rotatably connected with the left shaft seat and the right shaft seat, and the rotating axis of the wheel rim is coaxial with the wheel shaft.
Furthermore, the rotary joints of the wheel rim and the left shaft seat and the right shaft seat are respectively provided with a shaft sleeve.
Further, the wheel body is a revolving body coaxial with the wheel shaft.
Further, the tread is a revolution surface with the largest wheel body diameter.
Furthermore, treads are arranged at two ends of the wheel body, and an inward sunken annular groove is formed between the treads at the two ends.
Furthermore, a hollow groove is formed in the position, corresponding to the annular groove, on the inner circular side wall of the wheel body.
The utility model has the advantages that:
1. the utility model discloses a separate the rim and the wheel body of thrust wheel, the axial force that greatly reduced wheel body bore in work alleviates the axial wear between bush turn-ups and the axle bed remarkably to realized reducing the floating oil blanket oil leak trouble effectively, promoted life greatly, less axial friction also can reduce the wheel body and rotate the resistance simultaneously, makes the thrust wheel rotate more in a flexible way, reliable durable function.
Drawings
Fig. 1 is a structural view of the present invention.
Fig. 2 is a side view of the support base of the present invention.
Description of reference numerals: 1-left axle seat; 2-a pin shaft; 3-sealing ring; 4-a rim; 5-floating oil seal; 6-a lining; 7-a wheel body; 8-wheel axle; 9-shaft sleeve; 10-adjusting the washer; 11-right shaft seat; 12-shaft shoulder; 13-mounting a cylindrical surface; 14-tread.
Detailed Description
The invention will be further described with reference to specific examples, which are intended to be illustrative only and not to limit the scope of the invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents also fall within the scope of the appended claims.
Referring to fig. 1 to 2, which are a structural view and a side view of the present invention, a thrust wheel for a crawler-type engineering machine comprises a wheel shaft 8, a left shaft seat 1 is disposed on the outer side of the left end of the wheel shaft 8, a right shaft seat 11 is disposed on the outer side of the right end of the wheel shaft 8, the left shaft seat 1 and the right shaft seat 11 are both connected and fixed with the wheel shaft 8 through a pin shaft 2, annular grooves are disposed on the circumferential surfaces of both ends of the wheel shaft 8, a sealing ring 3 is disposed on the inner side of the annular groove, the wheel shaft 8 is respectively connected with the left shaft seat 1 and the right shaft seat 11 through the sealing ring 3 in a sealing manner, a wheel body 7 is disposed between the left shaft seat 1 and the right shaft seat 11 and the outer side of the wheel shaft 8, bushings 6 are disposed between both ends of the wheel body 7 and the wheel shaft 8, floating oil seals 5 are disposed between both ends of the wheel body 7 and the left shaft seat 1 and the right shaft seat 11, a shaft seat 14 coaxial with the wheel shaft 8 is disposed on the wheel body 7, rims 4 are disposed between the wheel body 7 and the left and the right shaft seat 1 and the right shaft seat 11, the rim 4 is axially adjacent to the wheel 7, the rim 4 being radially raised with respect to the tread 14.
Rim 4 and left axle bed 1, right axle bed 11 are all rotated and are connected and rotation axis and wheel axle 8 is coaxial, rim 4 and left axle bed 1, right axle bed 11 rotates the junction and all is equipped with axle sleeve 9, wheel body 7 is the solid of revolution coaxial with wheel axle 8, tread 14 is the biggest surface of revolution of wheel body 7 diameter, the both ends of wheel body 7 all are provided with between the tread 14 at tread 14 and both ends and are provided with inside sunken annular groove, the hollow groove has been seted up to the position that the annular groove corresponds on the circular lateral wall in the wheel body 7.
The first embodiment is as follows:
the device comprises a horizontally placed wheel shaft 8, wherein a left shaft seat 1 and a right shaft seat 11 are respectively arranged on shaft sections at the left end and the right end of the wheel shaft 8, and the left shaft seat and the right shaft seat are in clearance fit with the wheel shaft 8 and are completely positioned through a pin shaft 2, so that the wheel shaft 8 is fixedly connected with the left shaft seat and the right shaft seat.
A wheel body 7 is mounted on the middle shaft section of the wheel shaft 8, the wheel body 7 is a rotary body and is coaxial with the wheel shaft 8, the rotary surface of the wheel body 7 is in a dumbbell shape, the rotary surfaces at two ends are treads 14, and the diameter of the treads 14 is the maximum diameter of the wheel body 7.
Two flanged bushes 6 are mounted in the central hole of the wheel body 7, the outer cylindrical surface of the straight cylinder part of the bush 6 is embedded in the central hole of the wheel body 7, and the inner hole of the bush 6 is in clearance fit with the wheel shaft 8, so that the wheel body 7 can freely rotate around the wheel shaft 8.
The inner sides of the turned edges of the left and right bushings 6 are respectively clung to the left and right sides of the wheel body 7, and the outer sides of the left and right turned edges are respectively separated from the left and right axle seats by a small gap, so that the axial positioning of the wheel body 7 can be realized. Floating oil seals 5 are arranged between the wheel body 7 and the left shaft seat 1 and the right shaft seat 11 for sealing axial gaps between the wheel body 7 and the left shaft seat and the right shaft seat, and sealing rings 3 are arranged on shaft sections at two ends of the wheel shaft 8 matched with the left shaft seat 1 and the right shaft seat 11 for sealing the matching gaps, so that a sealing space can be formed in the thrust wheel, and lubricating oil is injected into the sealing space.
The left shaft seat 1 and the right shaft seat 11 are both provided with a mounting cylindrical surface 13 and a shaft shoulder 12, the mounting cylindrical surface 13 and the shaft shoulder 12 are coaxial with the wheel shaft 8, the shaft shoulder 12 is connected with the outer end of the mounting cylindrical surface 13, the mounting cylindrical surfaces 13 of the left shaft seat and the right shaft seat are both provided with a wheel rim 4, and the wheel rim 4 is a revolving body and is coaxial with the wheel shaft 8.
The center hole of the wheel rim 4 is embedded with a shaft sleeve 9, the inner hole of the shaft sleeve 9 is in clearance fit with a mounting cylindrical surface 13, so that the wheel rim 4 can freely rotate around the axis of the wheel shaft 8, the wheel rim 4 is axially positioned between the wheel body 7 and the shaft shoulder 12, an adjusting washer 10 is arranged at the axial clearance, so that the wheel rim 4 can be axially positioned, the diameter of the wheel rim 4 is larger than that of the tread 14, the diameter of the adjusting washer 10 is smaller than that of the tread 14, the wheel rim 4 is protruded relative to the tread 14 in the radial direction, mounting holes and mounting surfaces are machined in left and right shaft seats of the thrust wheel, and the thrust wheel can be mounted on a chassis of the crawler-type engineering machine through bolts.
Based on the above embodiment, the utility model discloses a working process and theory of operation as follows:
the utility model discloses a thrust wheel is in the use, the tread 14 on the wheel body 7 contacts with the caterpillar track link of track, wheel body 7 can rotate along with advancing of track, because the diameter of tread 14 is the maximum diameter of wheel body 7, consequently when equipment turn or track receive transverse impact, the caterpillar track link of track can only outwards extrude rim 4 and transmit axial force to left axle bed 1 or right axle bed 11 on, can reduce the axial force that wheel body 7 bore greatly, show the axial wear who alleviates between the turn-ups of bush 6 and the axle bed, avoid wheel body 7 axial float, thereby can reduce the oil leak trouble of floating oil seal 5 effectively, less axial friction also can reduce wheel body 7 rolling resistance simultaneously, make the thrust wheel rotate more in a flexible way, rim 4 can be around the axis free rotation of shaft 8, consequently, can alleviate the friction loss between caterpillar track link and the rim 4 greatly.
The utility model discloses a separate rim 4 and wheel body 7 of thrust wheel, the axial force that greatly reduced wheel body 7 bore in work alleviates the axial wear between 6 turn-ups of bush and the axle bed remarkably to realized reducing effectively that floating oil seal 5 leaks oil trouble, promote life greatly, the less axial friction also can reduce wheel body 7 and rotate the resistance simultaneously, makes the thrust wheel rotate more in a flexible way, reliable durable function.
Claims (7)
1. The utility model provides a track-laying wheel for engineering machine tool which characterized in that: the wheel comprises a wheel shaft, a left shaft seat is arranged on the outer side of the left end of the wheel shaft, a right shaft seat is arranged on the outer side of the right end of the wheel shaft, the left shaft seat and the right shaft seat are fixedly connected with the wheel shaft through pin shafts, annular grooves are formed in the circumferential surfaces of the two ends of the wheel shaft, sealing rings are arranged on the inner sides of the annular grooves, the wheel shaft is respectively in sealing connection with the left shaft seat and the right shaft seat through the sealing rings, a wheel body is arranged between the left shaft seat and the right shaft seat and outside the wheel shaft, bushings are arranged between the two ends of the wheel body and the wheel shaft, floating oil seals are arranged between the two ends of the wheel body and the left shaft seat and the right shaft seat, a tread coaxial with the wheel shaft is arranged on the wheel body, wheel rims are arranged between the wheel body and the left shaft seat and the right shaft seat, are axially adjacent to each other wheel rims, and the treads of the rims are radially opposite to each other.
2. The track roller for a crawler-type construction machine according to claim 1, wherein: the wheel rim is rotatably connected with the left shaft seat and the right shaft seat, and the rotating axis of the wheel rim is coaxial with the wheel shaft.
3. The track roller for a crawler-type construction machine according to claim 2, wherein: and shaft sleeves are arranged at the rotary connection parts of the wheel rim and the left shaft seat and the right shaft seat.
4. The track roller for a crawler-type construction machine according to claim 1, wherein: the wheel body is a revolving body coaxial with the wheel shaft.
5. The track roller for a crawler-type construction machine according to claim 1, wherein: the tread is a revolution surface with the largest wheel body diameter.
6. The track roller for a crawler-type construction machine according to claim 5, wherein: treads are arranged at the two ends of the wheel body, and an inward sunken annular groove is formed between the treads at the two ends.
7. The track roller for a crawler-type construction machine according to claim 6, wherein: the inner circle side wall of the wheel body is provided with a hollow groove at a position corresponding to the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120234260.0U CN214296197U (en) | 2021-01-28 | 2021-01-28 | Track wheel for crawler-type engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120234260.0U CN214296197U (en) | 2021-01-28 | 2021-01-28 | Track wheel for crawler-type engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214296197U true CN214296197U (en) | 2021-09-28 |
Family
ID=77830867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120234260.0U Active CN214296197U (en) | 2021-01-28 | 2021-01-28 | Track wheel for crawler-type engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214296197U (en) |
-
2021
- 2021-01-28 CN CN202120234260.0U patent/CN214296197U/en active Active
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