CN216185577U - Thrust wheel of development machine - Google Patents
Thrust wheel of development machine Download PDFInfo
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- CN216185577U CN216185577U CN202122529742.1U CN202122529742U CN216185577U CN 216185577 U CN216185577 U CN 216185577U CN 202122529742 U CN202122529742 U CN 202122529742U CN 216185577 U CN216185577 U CN 216185577U
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- 238000007789 sealing Methods 0.000 claims abstract description 121
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 48
- 210000004907 gland Anatomy 0.000 claims abstract description 22
- 238000007667 floating Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Abstract
The utility model provides a thrust wheel of a heading machine, belonging to the technical field of thrust wheels and comprising a wheel body and two end covers; a main shaft penetrates through the wheel body, and reinforcing sleeves are arranged at two ends of the wheel body and are sleeved on the outer sides of the main shaft; the two end covers are respectively arranged at two ends of the wheel body, each end cover comprises a sealing sleeve and a gland connected to a connecting plate at the rear end of the sealing sleeve, and the gland is connected with the end part of the main shaft and used for limiting the sealing sleeve in the reinforcing sleeve; the diameter of the sealing sleeve is less than 70% of the diameter of the track surface of the wheel body. According to the heading machine thrust wheel provided by the utility model, the problem of increasing the relative thickness of the end part of the wheel body is solved by installing the reinforcing sleeve at the end part of the wheel body and reducing the diameter of the end cover, the stress resistance strength of the track surface of the wheel body is improved, the problems that the end part of the track surface of the wheel body is easy to damage and crack are avoided, and the service life of the thrust wheel is prolonged.
Description
Technical Field
The utility model belongs to the technical field of thrust wheels, and particularly relates to a thrust wheel of a heading machine.
Background
The thrust wheel is a key part of the development machine, mainly plays the role of supporting the self weight and load of the equipment and keeps the development machine to normally run. The wheel body material of the thrust wheel is generally made of 50Mn, 40Mn2, 42CrMo and other materials, and is molded by casting or forging technology, and is subjected to heat treatment strengthening after machining. The heat treatment is generally a thermal refining treatment. And then, carrying out surface quenching on the wheel body of the thrust wheel, wherein the surface hardness needs to be 50-55 HRC so as to increase the wear resistance of the working surface of the wheel body of the thrust wheel. However, the surface treatment of the wheel body of the thrust wheel usually causes poor treatment effect due to problems of cost, process and the like, and the required wear resistance cannot be achieved, so that the wheel body of the thrust wheel usually fails due to premature wear, and the mobility of the crawler-type engineering machine in walking is further damaged.
In addition, end covers are installed at two ends of the wheel body of the existing thrust wheel, the end parts of the end covers extend into the wheel body and form a gap with the wheel body, and the main shaft penetrates through the wheel body and penetrates out of the end covers at the two ends. The radial thickness of the end cover is more than 2.3 times of the radial thickness of the end part of the wheel body matched with the end cover, so that the end part of the wheel body is small in thickness and easy to wear under stress and even crack in the running process of the heading machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a thrust wheel of a heading machine, and aims to solve the problem that a wheel body of the thrust wheel is easy to wear and crack under stress.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a heading machine thrust wheel, comprising:
the wheel body is internally provided with a main shaft in a penetrating manner, and two ends of the wheel body are provided with reinforcing sleeves which are arranged on the outer side of the main shaft;
the two end covers are respectively arranged at two ends of the wheel body, each end cover comprises a sealing sleeve and a gland connected to a connecting plate at the rear end of the sealing sleeve, and the gland is connected with the end part of the main shaft and used for limiting the sealing sleeve in the reinforcing sleeve; the diameter of the sealing sleeve is less than 70% of the diameter of the track surface of the wheel body.
As another embodiment of the present application, a bearing sleeve is disposed between the wheel body and the spindle, and an end of the bearing sleeve extends into the reinforcing sleeve; the front end of the sealing sleeve is abutted against the end face of the bearing sleeve.
As another embodiment of this application, the both ends of wheel body all are equipped with the cross-section and are the circular shape mounting groove, the reinforcing cover is located in the mounting groove, the lateral wall of reinforcing cover with the inside wall laminating of mounting groove.
As another embodiment of the present application, the reinforcing sleeve is welded to the wheel body.
As another embodiment of the present application, the reinforcing sleeve is integrally formed with the wheel body.
As another embodiment of the present application, the sealing boot includes:
the sealing sleeve inner sleeve is connected to the connecting plate, and the front end of the sealing sleeve inner sleeve is abutted to the bearing sleeve;
the sealing sleeve outer sleeve is arranged on the outer side of the sealing sleeve inner sleeve and connected with the connecting plate, and a conical outer side sealing groove is formed in the inner side of the sealing sleeve outer sleeve and in the outer side of the sealing sleeve inner sleeve.
As another embodiment of the application, a first limiting step and a second limiting step are arranged on the inner side wall of the reinforcing sleeve at intervals, and a gap is formed between the second limiting step and the outer sleeve of the sealing sleeve; the first limiting step and the outer side wall of the inner sleeve of the sealing sleeve form an inner side sealing groove, and the inner side sealing groove and the outer side sealing groove are oppositely arranged to form a sealing cavity for mounting a floating oil seal; the radial thickness of the sealing cavity along the wheel body is smaller than the radial thickness of the sealing sleeve inner sleeve along the wheel body.
As another embodiment of the present application, the outer diameter of the inner sleeve of the sealing sleeve is the same as the outer diameter of the bearing sleeve.
The heading machine thrust wheel provided by the utility model has the beneficial effects that: compared with the prior art, the heading machine thrust wheel has the advantages that the problem of increasing the relative thickness of the end part of the wheel body is solved by installing the reinforcing sleeve at the end part of the wheel body and reducing the diameter of the end cover, the stress tolerance strength of the track surface of the wheel body is improved, the problem that the end part of the track surface of the wheel body is easy to damage and crack is avoided, and the service life of the thrust wheel is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a thrust wheel of a heading machine according to a first embodiment of the utility model;
FIG. 2 is a schematic structural view of a wheel body according to a first embodiment of the present invention;
FIG. 3 is a schematic structural view of an end cap according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a heading machine thrust wheel according to a second embodiment of the present invention.
In the figure: 1. a wheel body; 2. a reinforcing sleeve; 3. an end cap; 31. sealing a sleeve inner sleeve; 32. a sealing sleeve jacket; 33. a connecting plate; 4. sealing the cavity; 5. a bearing housing; 6. a main shaft; 7. and (7) pressing the cover.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to 4, the supporting wheel of the heading machine provided by the present invention will now be described. The heading machine thrust wheel comprises a wheel body 1 and two end covers 3; a main shaft 6 penetrates through the wheel body 1, two ends of the wheel body 1 are provided with reinforcing sleeves 2, and the reinforcing sleeves 2 are arranged on the outer sides of the main shaft 6; the two end covers 3 are respectively arranged at two ends of the wheel body 1, each end cover 3 comprises a sealing sleeve and a gland 7 connected to a connecting plate 33 at the rear end of the sealing sleeve, and the gland 7 is connected with the end part of the main shaft 6 and used for limiting the sealing sleeve in the reinforcing sleeve 2; the diameter of the sealing sleeve is less than 70% of the diameter of the track surface of the wheel body 1.
Compared with the prior art, the thrust wheel of the heading machine provided by the utility model has the advantages that the end part of the wheel body 1 is provided with the reinforcing sleeve 2, the sealing sleeve is limited in the reinforcing sleeve 2 by virtue of the gland 7 connected with the main shaft 6, the thickness and the strength of the wheel body 1 outside the sealing sleeve are improved by the reinforcing sleeve 2, the problems that the wheel body 1 is easy to wear and crack due to stress because the thickness of the end part is small are avoided, and the service life of the thrust wheel is prolonged. The diameter of the sealing sleeve is smaller than 70% of the diameter of the track surface of the wheel body 1, the thickness of the end portion of the wheel body 1 or the thickness of the reinforcing sleeve 2 is increased due to the reduction of the diameter of the sealing sleeve, the stress strength of the end portion of the wheel body 1 is improved, and therefore the service life of the thrust wheel is prolonged.
According to the heading machine thrust wheel provided by the utility model, the problem of increasing the relative thickness of the end part of the wheel body 1 is solved by installing the reinforcing sleeve 2 at the end part of the wheel body 1 and reducing the diameter of the end cover 3, the stress tolerance strength of the track surface of the wheel body 1 is improved, the problem that the end part of the track surface of the wheel body 1 is easy to damage and crack is avoided, and the service life of the thrust wheel is prolonged.
Optionally, on the basis of not affecting the outer diameter of the track surface of the wheel body 1, when the outer diameter of the sealing sleeve is reduced to be less than 70% of the outer diameter of the track surface of the wheel body 1, 2 times of the distance from the outer side wall of the track surface of the wheel body 1 to the outer side of the sealing sleeve is greater than 30% of the outer diameter of the track surface of the wheel body 1, that is, 2 times of the sum of the radial thicknesses of the end portions of the reinforcing sleeve 2 and the wheel body 1 is greater than 30% of the outer diameter of the track surface of the wheel body 1; the thickness of the end portion of the raceway surface of the wheel body 1 in the radial direction thereof is increased, and the strength and wear resistance of the raceway surface of the wheel body 1 are improved, thereby improving the service life of the thrust wheel.
Optionally, the gland 7 is welded to the sealing sleeve or integrally cast.
Optionally, the gland 7 is connected to the spindle 6 by means of a jackscrew.
Optionally, the end portion of the raceway surface of the wheel body 1 has a constant thickness along the radial direction thereof, the outer diameter of the sealing sleeve is reduced, and the thickness of the reinforcing sleeve 2 added between the sealing sleeve and the end portion of the raceway surface of the wheel body 1 is increased. The reinforcing sleeve 2 is connected with the end part of the track surface of the wheel body 1, so that the stress strength of the end part of the track surface of the wheel body 1 is improved.
In some possible embodiments, referring to fig. 1, a bearing sleeve 5 is disposed between the wheel body 1 and the main shaft 6, and an end of the bearing sleeve 5 extends into the reinforcing sleeve 2; the end of the gland bush far away from the gland 7 is propped against the end surface of the bearing bush 5.
Specifically, a first through hole is formed in the wheel body 1 along the axial direction of the wheel body, bearing sleeves 5 are mounted at two ends of the first through hole, and a main shaft 6 penetrates through the bearing sleeves 5 and is connected with the wheel body 1 through the bearing sleeves 5. One end of the sealing sleeve far away from the gland 7 extends into the reinforcing sleeve and abuts against the end face of the bearing sleeve 5.
In some possible embodiments, please refer to fig. 1, two ends of the wheel body 1 are respectively provided with a mounting groove with a circular cross section, the reinforcing sleeve 2 is disposed in the mounting groove, and an outer side wall of the reinforcing sleeve 2 is attached to an inner side wall of the mounting groove.
Specifically, the end of the wheel body 1 is provided with a mounting groove, and the reinforcing sleeve 2 is arranged in the mounting groove. The cross-section of reinforcing sleeve 2 is the annular, and the lateral wall laminating of reinforcing sleeve 2 is on the inside wall of wheel body 1, and the inboard of reinforcing sleeve 2 forms and holds the chamber. The sealing sleeve is positioned in the containing cavity, a certain gap is reserved between the sealing sleeve and the reinforcing sleeve 2, and the sealing sleeve is connected with the main shaft 6 by means of the gland 7 to complete the assembly of the thrust wheel.
Optionally, the reinforcing sleeve 2 and the wheel body 1 are made of the same material, such as 50Mn and 40Mn242CrMo, etc.
Optionally, the reinforcing sleeve 2 is welded to the inner side wall of the wheel body 1.
In some possible embodiments, referring to fig. 4, the reinforcing sleeve 2 is formed integrally with the wheel 1.
Specifically, reinforcing sleeve 2 and wheel body 1 integrated into one piece, the diameter of seal cover reduces, makes 1 tip of wheel body along its radial ascending thickness of orientation can increase, has improved the intensity and the wear resistance of wheel body 1, has strengthened the life of wheel body 1.
In some possible embodiments, referring to fig. 3, the gland comprises a gland inner sleeve 31 and a gland outer sleeve 32; the sealing sleeve inner sleeve 31 is connected to the connecting plate 33, and the front end of the sealing sleeve inner sleeve 31 is abutted to the bearing sleeve 5; the sealing sleeve outer sleeve 32 is sleeved on the outer side of the sealing sleeve inner sleeve 31 and connected with the connecting plate 33, and an outer side sealing groove is formed between the inner side of the sealing sleeve outer sleeve 32 and the outer side of the sealing sleeve inner sleeve 31.
Specifically, the sealing sleeve inner sleeve 31 and the sealing sleeve outer sleeve 32 are both arranged on one side of the connecting plate 33 far away from the gland 7, and the length of the sealing sleeve inner sleeve 31 is greater than that of the sealing sleeve outer sleeve 32; the sealing sleeve inner sleeve 31 penetrates through the accommodating cavity of the reinforcing sleeve 2 and abuts against the end face of the bearing sleeve 5, and a gap is reserved between the sealing sleeve outer sleeve 32 and the inner side wall of the reinforcing sleeve 2.
Alternatively, the connecting plate 33 is integrally formed with the seal sleeve inner sleeve 31 and the seal sleeve outer sleeve 32.
In some possible embodiments, please refer to fig. 1, a first limit step and a second limit step are arranged on the inner side wall of the reinforcing sleeve 2 at intervals, and a gap exists between the second limit step and the sealing sleeve jacket 32; an inner side sealing groove is formed by the first limiting step and the outer side wall of the sealing sleeve inner sleeve 31, and a sealing cavity 4 for mounting a floating oil seal is formed by the inner side sealing groove and the outer side sealing groove in an opposite mode; the thickness of the sealing cavity 4 along the radial direction of the wheel body 1 is smaller than that of the sealing sleeve inner sleeve 31 along the radial direction of the wheel body 1.
The first limiting step and the outer side wall of the sealing sleeve inner sleeve 31 form an inner side sealing groove, and the inner side sealing groove and the outer side sealing groove are oppositely arranged to form a sealing cavity 4; the thickness of the sealing cavity 4 along the radial direction of the wheel body 1 is smaller than that of the sealing sleeve inner sleeve 31 along the radial direction of the wheel body 1.
Specifically, the first limiting step is annular, an inner side sealing groove is formed by the outer edge of the first limiting step and the outer side wall of the sealing sleeve inner sleeve 31, and the section of the inner side sealing groove is annular. The inner side sealing groove and the outer side sealing groove are oppositely arranged to form a sealing cavity 4, and the sealing cavity 4 is used for arranging a floating oil seal. The radial thickness of the sealing cavity 4 along the wheel body 1 is smaller than the radial thickness of the sealing sleeve inner sleeve 31 along the wheel body 1, so as to ensure that the diameter of the sealing sleeve is smaller than 70% of the diameter of the wheel body 1.
Optionally, the second limiting step is located outside the first limiting step. The setting of second spacing step is used for increasing the cross section that holds the chamber, makes the tip of seal cover overcoat 32 get into smoothly and holds the intracavity. The second limit step is annular, the diameter of the outer side edge of the second limit step is larger than that of the sealing sleeve jacket 32, and a gap is reserved between the sealing sleeve jacket 32 and the second limit step.
Optionally, the outer diameter of the sealing sleeve is D, the diameter of the main shaft 6 is D, the radial thickness of the sealing sleeve is h, and the radial thickness of the sealing sleeve is (D-D)/2; the diameter of the main shaft 6 is unchanged and the radial thickness of the gland is reduced. The sealing sleeve inner sleeve 31 and the sealing sleeve outer sleeve 32 are both annular, the wall thickness of the sealing sleeve inner sleeve 31 and the wall thickness of the sealing sleeve outer sleeve 32 are not changed, the radial thickness of the sealing sleeve is reduced along with the reduction of the radial thickness of the sealing sleeve, the radial thickness of the sealing cavity 4 along the sealing sleeve is reduced, the floating oil seal is reduced, and the material cost is saved.
Optionally, the outer diameter of the sealing sleeve inner sleeve 31 is the same as the outer diameter of the bearing sleeve 5.
Optionally, the bearing sleeve 5 is provided with a hem structure along the radial direction of the bearing sleeve, the hem structure extends in the direction away from the axis of the bearing sleeve 5, and the hem structure is located at the end of the accommodating cavity. When the gland is installed, one end of the inner sleeve 31 far away from the connecting plate 33 of the gland abuts against the flanging structure of the bearing sleeve 5. The outer diameter of the sealing sleeve inner sleeve 31 is consistent with that of the flanging structure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Entry driving machine thrust wheel, its characterized in that includes:
the wheel body is internally provided with a main shaft in a penetrating manner, and two ends of the wheel body are provided with reinforcing sleeves which are arranged on the outer side of the main shaft;
the two end covers are respectively arranged at two ends of the wheel body, each end cover comprises a sealing sleeve and a gland connected to a connecting plate at the rear end of the sealing sleeve, and the gland is connected with the end part of the main shaft and used for limiting the sealing sleeve in the reinforcing sleeve; the diameter of the sealing sleeve is less than 70% of the diameter of the track surface of the wheel body.
2. The thrust wheel of a heading machine as claimed in claim 1 wherein a bearing sleeve is provided between the wheel body and the main shaft, an end of the bearing sleeve extending into the reinforcing sleeve; the front end of the sealing sleeve is abutted against the end face of the bearing sleeve.
3. The supporting wheel of the heading machine as claimed in claim 2, wherein the wheel body is provided at both ends thereof with mounting grooves having a circular cross section, the reinforcing sleeve is disposed in the mounting grooves, and the outer side walls of the reinforcing sleeve are attached to the inner side walls of the mounting grooves.
4. A heading machine thrust wheel according to claim 3 wherein the reinforcing sleeve is welded to the wheel body.
5. A heading machine thrust wheel according to claim 3 wherein the reinforcing sleeve is formed integrally with the wheel body.
6. A heading machine thrust wheel according to any one of claims 2 to 5, wherein the sealing sleeve comprises:
the sealing sleeve inner sleeve is connected to the connecting plate, and the front end of the sealing sleeve inner sleeve is abutted to the bearing sleeve;
the sealing sleeve outer sleeve is arranged on the outer side of the sealing sleeve inner sleeve and connected with the connecting plate, and a conical outer side sealing groove is formed in the inner side of the sealing sleeve outer sleeve and in the outer side of the sealing sleeve inner sleeve.
7. The supporting wheel of the heading machine as claimed in claim 6, wherein the inner side wall of the reinforcing sleeve is provided with a first limiting step and a second limiting step at intervals, and the second limiting step has a gap with the outer sleeve of the sealing sleeve; the first limiting step and the outer side wall of the inner sleeve of the sealing sleeve form an inner side sealing groove, and the inner side sealing groove and the outer side sealing groove are oppositely arranged to form a sealing cavity for mounting a floating oil seal; the radial thickness of the sealing cavity along the wheel body is smaller than the radial thickness of the sealing sleeve inner sleeve along the wheel body.
8. A heading machine thrust wheel according to claim 7, wherein the outer diameter of the sealing boot inner sleeve is the same as the outer diameter of the bearing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122529742.1U CN216185577U (en) | 2021-10-20 | 2021-10-20 | Thrust wheel of development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122529742.1U CN216185577U (en) | 2021-10-20 | 2021-10-20 | Thrust wheel of development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216185577U true CN216185577U (en) | 2022-04-05 |
Family
ID=80885490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122529742.1U Active CN216185577U (en) | 2021-10-20 | 2021-10-20 | Thrust wheel of development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216185577U (en) |
-
2021
- 2021-10-20 CN CN202122529742.1U patent/CN216185577U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 075000 Zone 1, Building 6, Shengji Company, Economic Development Zone, Xiahuayuan District, Zhangjiakou City, Hebei Province Patentee after: Hebei Shengyuan Construction Machinery Co.,Ltd. Address before: 075100 north side of xuanchi road pesticide factory, Xuanhua District, Zhangjiakou City, Hebei Province Patentee before: Xuanhua Sheng Yuan Construction Machinery Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: 075100 No. 401, Unit 1, Building 1, Xiaoliushu Lane Project, Xuanhua District, Zhangjiakou City, Hebei Province Patentee after: Cheng Jianguo Country or region after: China Address before: 075000 Zone 1, Building 6, Shengji Company, Economic Development Zone, Xiahuayuan District, Zhangjiakou City, Hebei Province Patentee before: Hebei Shengyuan Construction Machinery Co.,Ltd. Country or region before: China |