CN212313716U - Thrust wheel for excavator - Google Patents
Thrust wheel for excavator Download PDFInfo
- Publication number
- CN212313716U CN212313716U CN202020839604.6U CN202020839604U CN212313716U CN 212313716 U CN212313716 U CN 212313716U CN 202020839604 U CN202020839604 U CN 202020839604U CN 212313716 U CN212313716 U CN 212313716U
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- China
- Prior art keywords
- thrust wheel
- oil seal
- wheel body
- thrust
- seal ring
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- Expired - Fee Related
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Abstract
The utility model discloses a thrust wheel that excavator used, concretely relates to excavator technical field, including the thrust wheel body, the circumference side outer wall of thrust wheel body is close to the middle part and is equipped with the excessive section of arc, and the both ends of thrust wheel body are all fixed and are provided with spacing wheel, the inside horizontal installation of thrust wheel body has a thrust wheel axle, one side of spacing wheel is equipped with the oiling mouth, the circumference side outer wall central point of the excessive section of arc puts and installs the cam. The utility model discloses set up the sealing plug, oiling mouth and oiling passageway, the sealing plug leaves from the oiling mouth, lubricating oil enters into the inside of oiling passageway from the oiling mouth, to lubricating between thrust wheel axle and the thrust wheel body, reduce the frictional force that the thrust wheel axle receives, the life of extension thrust wheel axle has set up oil seal seat and oil seal ring, the oil seal seat can seal the axle sleeve, prevent that lubricating oil from leaking, cooperate the dog to the subsides of oil seal ring to press, the leakproofness between thrust wheel body and the thrust wheel axle is improved.
Description
Technical Field
The utility model relates to an excavator technical field, more specifically says, the utility model relates to a thrust wheel that excavator used.
Background
The thrust wheel is an important part of a walking and supporting system of the crawler excavator and is also one of four wheels and one belt of a chassis of the crawler engineering machine, the thrust wheel mainly plays a role in supporting the weight of the excavator and a bulldozer, the crawler advances along the wheel, the machining precision requirement of a thrust wheel shaft is high, the requirement can be met only by machining the thrust wheel shaft through a numerical control machine tool, and the thrust wheel plays an important role in the using process of the excavator.
However, in actual use, the method still has more defects, such as larger friction force on the supporting wheel shaft and higher maintenance cost.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a thrust wheel that excavator used, through having set up the sealing plug, oiling mouth and oiling passageway, draw the piece through the annular and stimulate the cover block, the cover block is driving the sealing plug motion, the sealing plug leaves from the oiling mouth, pour into lubricating oil, lubricating oil enters into the inside of oiling passageway from the oiling mouth, and reach the position of lug, with the contact of thrust wheel axle's circumference side outer wall, to lubricating between thrust wheel axle and the thrust wheel body, reduce the frictional force that thrust wheel axle received, the life of extension thrust wheel axle, in order to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a thrust wheel used by an excavator comprises a thrust wheel body, wherein an arc transition section is arranged on the outer wall of the circumferential side of the thrust wheel body close to the middle part of the thrust wheel body, two ends of the thrust wheel body are respectively and fixedly provided with a limiting wheel, a thrust wheel shaft is horizontally arranged in the thrust wheel body, one side of each limiting wheel is provided with an oil injection port, and a cam is arranged at the center position of the outer wall of the circumferential side of the arc transition section;
the inner chamber middle part of thrust wheel body is equipped with the lug, and the inside of thrust wheel body is provided with the oiling passageway, the one end and the oiling mouth of oiling passageway communicate with each other, and the other end of oiling passageway communicates with each other with the end of lug, the inside of oiling mouth is provided with the sealing plug, one side of sealing plug is provided with the cover block, the fixed surface of cover block is provided with the annular and draws the piece.
In a preferred embodiment, a central column is fixedly arranged on each of two sides of the thrust wheel shaft, a connecting block is fixedly connected to the outer wall of the circumferential side of the central column, and a mounting hole is formed in the surface of the connecting block.
In a preferred embodiment, two mounting grooves are arranged at the joint of the thrust wheel body and the thrust wheel shaft, and the two mounting grooves are symmetrically arranged about the vertical central axis of the cam.
In a preferred embodiment, a shaft sleeve is arranged inside each of the two mounting grooves, and an inner cavity of the shaft sleeve is attached to the outer wall of the circumferential side of the supporting wheel shaft.
In a preferred embodiment, a stop block is arranged on the surface of the thrust wheel shaft, an oil seal ring is arranged at the joint of the stop block and the limiting wheel, and the oil seal ring is made of a nitrile rubber material.
In a preferred embodiment, the surface of the oil seal ring is provided with through holes, two oil seal rings are arranged, and the outer wall of the circumferential side of the stop block is sleeved with the oil seal ring.
In a preferred embodiment, an oil seal seat is arranged at the joint of one end of the stop block and the thrust wheel body, and the oil seal seat is annularly arranged.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a set up the sealing plug, oiling mouth and oiling passageway, draw the piece through the annular and stimulate the cover block, the cover block drives the sealing plug motion, the sealing plug leaves from the oiling mouth, pour into lubricating oil, lubricating oil enters into the inside of oiling passageway from the oiling mouth, and reach the position of lug, contact with the circumference side outer wall of thrust wheel axle, lubricate between thrust wheel axle and the thrust wheel body, reduce the frictional force that the thrust wheel axle receives, the life of extension thrust wheel axle, and can further increase excavator track running gear's stability, compared with the prior art, the great problem of frictional force that the thrust wheel axle receives has been solved;
2. the utility model discloses a set up oil seal seat and oil seal ring, the oil seal seat can seal the axle sleeve, just so can prevent that lubricating oil from leaking, is coordinating the dog and is pressing the subsides of oil seal ring, and the leakproofness between thrust wheel body and the thrust wheel axle is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is an enlarged view of a portion a of fig. 3.
The reference signs are: the oil injection device comprises a 1-thrust wheel body, a 2-arc transition section, a 3-cam, a 4-thrust wheel shaft, a 5-limiting wheel, a 6-center column, a 7-connecting block, 8-mounting holes, 9-oil injection channels, 10-mounting grooves, 11-shaft sleeves, 12-convex blocks, 13-oil injection ports, 14-sealing plugs, 15-cover blocks, 16-annular pull blocks, 17-oil seal rings, 18-oil seal seats and 19-stop blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a thrust wheel that excavator of an embodiment used, including thrust wheel body 1, the circumference side outer wall of thrust wheel body 1 is close to the middle part and is equipped with arc transition section 2, and the both ends of thrust wheel body 1 are all fixed and are provided with spacing wheel 5, the inside level of thrust wheel body 1 is installed and is propped up a wheel axle 4, one side of spacing wheel 5 is equipped with oiling mouth 13, the circumference side outer wall central point of arc transition section 2 is installed cam 3;
the inner cavity middle part of the thrust wheel body 1 is provided with a convex block 12, an oil injection channel 9 is arranged inside the thrust wheel body 1, one end of the oil injection channel 9 is communicated with an oil injection port 13, the other end of the oil injection channel 9 is communicated with the tail end of the convex block 12, a sealing plug 14 is arranged inside the oil injection port 13, one side of the sealing plug 14 is provided with a cover block 15, and the surface of the cover block 15 is fixedly provided with an annular pull block 16.
The center post 6 is fixedly arranged on both sides of the thrust wheel shaft 4, the connecting block 7 is fixedly connected to the outer wall of the circumferential side of the center post 6, and the surface of the connecting block 7 is provided with a mounting hole 8.
Two mounting grooves 10 are formed in the connecting position of the thrust wheel body 1 and the thrust wheel shaft 4, and the two mounting grooves 10 are symmetrically arranged relative to the vertical central axis of the cam 3.
As shown in fig. 1 to 4, the implementation scenario specifically includes: in the practical use process, the thrust wheel shaft 4 and the thrust wheel body 1 are arranged together, wherein the thrust wheel shaft 4 is fixed with the shaft sleeve 11, the shaft sleeve 11 rotates along with the thrust wheel shaft 4, when the thrust wheel body 1 needs to be maintained in a long-time use state, the annular pull block 16 pulls the cover block 15, the cover block 15 drives the sealing plug 14 to move, the sealing plug 14 leaves from the oil filling opening 13, the funnel can be placed into the oil filling opening 13 at the moment, then lubricating oil is filled into the funnel, the lubricating oil enters the oil filling channel 9 along the funnel, the lubricating oil reaches the position of the convex block 12 and contacts with the peripheral side outer wall of the thrust wheel shaft 4, the lubrication between the thrust wheel shaft 4 and the thrust wheel body 1 is realized, the friction force borne by the thrust wheel shaft 4 is reduced, the service life of the thrust wheel shaft 4 is prolonged, and the stability of the crawler travel mechanism of the excavator can be further increased, and then the funnel is taken out, the sealing plug 14 is covered on the oil filling port 13, and the lubricating oil is blocked, so that the embodiment specifically solves the problem that the friction force borne by the thrust wheel shaft 4 is large.
Two the inside of mounting groove 10 all is provided with axle sleeve 11, the laminating of the circumference side outer wall of the inner chamber of axle sleeve 11 and counter-weight wheel axle 4.
The surface of the thrust wheel shaft 4 is provided with a stop block 19, an oil seal ring 17 is arranged at the joint of the stop block 19 and the limiting wheel 5, and the oil seal ring 17 is made of a nitrile rubber material.
The surface of oil seal ring 17 is equipped with the through-hole, and oil seal ring 17 is provided with two, the circumference side outer wall of dog 19 cup joints with oil seal ring 17.
An oil seal seat 18 is arranged at the joint of one end of the stop block 19 and the thrust wheel body 1, and the oil seal seat 18 is annularly arranged.
As shown in fig. 1, 3 and 4, the implementation scenario specifically includes: when the sealing device is used, the oil seal seat 18 can seal the shaft sleeve 11, so that lubricating oil can be prevented from leaking, and the sealing performance between the thrust wheel body 1 and the thrust wheel shaft 4 is improved by matching with the sticking pressure of the stop block 19 on the oil seal ring 17.
The utility model discloses a theory of operation:
referring to the attached drawings 1-4 of the specification, a sealing plug 14, an oil filling port 13 and an oil filling channel 9 are arranged, a cover block 15 is pulled through an annular pulling block 16, the cover block 15 drives the sealing plug 14 to move, the sealing plug 14 leaves from the oil filling port 13, lubricating oil is injected, the lubricating oil enters the oil filling channel 9 from the oil filling port 13 and reaches the position of a bump 12 and contacts with the outer wall of the circumferential side of a thrust wheel shaft 4 to lubricate between the thrust wheel shaft 4 and a thrust wheel body 1, the friction force borne by the thrust wheel shaft 4 is reduced, the service life of the thrust wheel shaft 4 is prolonged, the stability of a crawler travel mechanism of the excavator can be further improved, and the problem that the friction force borne by the thrust wheel shaft 4 is large is solved.
Referring to the attached drawings 1, 3 and 4 of the specification, an oil seal seat 18 and an oil seal ring 17 are arranged, the oil seal seat 18 can seal the shaft sleeve 11, so that lubricating oil can be prevented from leaking, and the sealing performance between the thrust wheel body 1 and the thrust wheel shaft 4 is improved in cooperation with the sticking pressure of the stop block 19 to the oil seal ring 17.
And finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A thrust wheel that excavator used, includes thrust wheel body (1), its characterized in that: an arc transition section (2) is arranged on the outer wall of the circumferential side of the thrust wheel body (1) close to the middle, two ends of the thrust wheel body (1) are fixedly provided with limit wheels (5), a thrust wheel shaft (4) is horizontally arranged in the thrust wheel body (1), an oil filling port (13) is arranged on one side of each limit wheel (5), and a cam (3) is arranged in the center of the outer wall of the circumferential side of the arc transition section (2);
the inner chamber middle part of thrust wheel body (1) is equipped with lug (12), and the inside of thrust wheel body (1) is provided with oiling passageway (9), the one end and oiling mouth (13) of oiling passageway (9) communicate with each other, and the other end of oiling passageway (9) communicates with each other with the end of lug (12), the inside of oiling mouth (13) is provided with sealing plug (14), one side of sealing plug (14) is provided with cover block (15), the fixed surface of cover block (15) is provided with annular pull block (16).
2. The thrust wheel for an excavator according to claim 1, wherein: the supporting wheel is characterized in that central columns (6) are fixedly arranged on two sides of the supporting wheel shaft (4), connecting blocks (7) are fixedly connected to the outer walls of the circumferential sides of the central columns (6), and mounting holes (8) are formed in the surfaces of the connecting blocks (7).
3. The thrust wheel for an excavator according to claim 1, wherein: the connecting part of the thrust wheel body (1) and the thrust wheel shaft (4) is provided with two mounting grooves (10), and the two mounting grooves (10) are symmetrically arranged along the vertical central axis of the cam (3).
4. The thrust wheel for an excavator according to claim 3, wherein: and shaft sleeves (11) are arranged in the two mounting grooves (10), and inner cavities of the shaft sleeves (11) are attached to the outer wall of the circumferential side of the supporting wheel shaft (4).
5. The thrust wheel for an excavator according to claim 1, wherein: the surface of the thrust wheel shaft (4) is provided with a stop block (19), an oil seal ring (17) is arranged at the joint of the stop block (19) and the limiting wheel (5), and the oil seal ring (17) is made of a nitrile rubber material.
6. The thrust wheel for an excavator according to claim 5, wherein: the surface of oil seal ring (17) is equipped with the through-hole, and oil seal ring (17) is provided with two, the circumference side outer wall and the oil seal ring (17) of dog (19) cup joint.
7. The thrust wheel for an excavator according to claim 5, wherein: an oil seal seat (18) is arranged at the joint of one end of the stop block (19) and the thrust wheel body (1), and the oil seal seat (18) is annularly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020839604.6U CN212313716U (en) | 2020-05-19 | 2020-05-19 | Thrust wheel for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020839604.6U CN212313716U (en) | 2020-05-19 | 2020-05-19 | Thrust wheel for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212313716U true CN212313716U (en) | 2021-01-08 |
Family
ID=74021047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020839604.6U Expired - Fee Related CN212313716U (en) | 2020-05-19 | 2020-05-19 | Thrust wheel for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212313716U (en) |
-
2020
- 2020-05-19 CN CN202020839604.6U patent/CN212313716U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210108 |