CN216034363U - Transmission bearing structure and mine car - Google Patents

Abstract

The utility model provides a transmission supporting structure and a mine car, wherein the transmission supporting structure comprises a spline shaft, the middle part of the spline shaft is rotatably provided with a supporting seat, the bottom of the supporting seat is provided with an installation plate, the inner sides of two ends of the supporting seat are respectively provided with a bearing position, a deep groove ball bearing matched with the spline shaft is assembled in the bearing position, two ends of the supporting seat are respectively provided with an end cover, and two ends of the spline shaft are respectively provided with a flange; according to the transmission supporting structure, the integrated supporting seat replaces two shaft seats in the prior art, the concentricity of the two bearing positions is high, the axial clearance is easy to adjust, the operation is stable during use, no noise exists, the phenomena of high temperature and shaking are not easy to occur during work, the service life of the transmission supporting structure is prolonged, and the failure rate and the maintenance cost are reduced.

Description

Transmission bearing structure and mine car

Technical Field

The utility model belongs to the technical field of mine cars, and particularly relates to a transmission supporting structure and a mine car.

Background

In the prior art, there is a mine car transmission support machine structure as shown in fig. 1, which has a spline shaft 2, and the outside of the spline shaft 2 is rotatably assembled with two bearing seats 1 through a bearing 3, and it has the disadvantages that the axial play is not easy to adjust in the assembling process of the two bearing seats, and the higher coaxiality between the bearing seats can not be ensured, so that the high-temperature heating phenomenon can occur in the using process, and the vibration and abnormal sound can be generated in the transmission process, thereby improving the frequency of the occurrence of the fault.

Therefore, a transmission support structure and a mine car which can effectively solve the problems caused by heating, shaking and abnormal sound in the using process and prolong the service life are needed to be designed to solve the technical problems faced at present.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the transmission support structure and the mine car, which can effectively solve the problems caused by heating, shaking, abnormal sound and the like in the using process and prolong the service life.

The technical scheme of the utility model is as follows: transmission bearing structure, including the integral key shaft, the middle part of integral key shaft is rotated and is provided with the supporting seat, the bottom of supporting seat is provided with the mounting panel, the bearing position has all been seted up to the both ends inboard of supporting seat, bearing position internal assembly with integral key shaft assorted deep groove ball bearing, the both ends of supporting seat all are provided with the end cover, the both ends of integral key shaft all are equipped with the bead.

And an oil seal is assembled between the inner side of the end cover and the spline shaft.

The end cover is detachably and fixedly connected with the end part of the supporting seat through a bolt.

The surface processing roughness Ra of the position, corresponding to the oil seal, on the outer side of the end part of the flange is less than or equal to 0.8 mu m.

And a grease nipple is arranged at the top of the supporting seat.

The flange is fixed at the end of the spline shaft through a compression nut.

And a sealing ring is arranged inside one side of the deep groove ball bearing, which is close to the end cover.

A mining vehicle having a drive support structure as described above.

The utility model has the beneficial effects that: according to the transmission supporting structure, the integrated supporting seat replaces two shaft seats in the prior art, the concentricity of the two bearing positions is high, the axial clearance is easy to adjust, the operation is stable during use, no noise exists, the phenomena of high temperature and shaking are not easy to occur during work, the service life of the transmission supporting structure is prolonged, and the failure rate and the maintenance cost are reduced.

Drawings

Fig. 1 is a schematic structural diagram of a transmission support structure in the prior art.

Fig. 2 is a schematic structural view of the transmission support structure of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the utility model, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 2, the transmission support structure includes a spline shaft 2, a support seat 4 is rotatably arranged in the middle of the spline shaft 2, the inside of the support seat 4 is a cylindrical hollow structure, a mounting plate 12 is arranged at the bottom of the support seat 4 and used for mounting and fixing the transmission support structure, bearing positions 13 are respectively arranged at the inner sides of two ends of the support seat 4 and used for mounting a bearing, the bearing positions 13 at two ends of the support seat 4 are processed at one time, the concentricity of the bearing positions 13 and an inner hole 14 of the support seat 4 is ensured, the axial play is easy to adjust and is generally controlled to be 0.4-0.6 mm, a deep groove ball bearing 9 matched with the spline shaft 2 is assembled in the bearing positions 13, end covers 5 are respectively arranged at two ends of the support seat 4, the bearing is limited in the support seat 4 through the end covers 5, and flanges 8 are respectively assembled at two ends of the spline shaft 2; in the embodiment, the integrated supporting seat 4 replaces two shaft seats in the prior art, the concentricity of the two bearing positions 13 is high, the axial clearance is easy to adjust, the operation is stable during use, no noise exists, the phenomena of high temperature and shaking are not easy to occur during work, the service life of the transmission supporting structure is prolonged, and the failure rate and the maintenance cost are reduced; the deep groove ball bearing is simple in structure, can easily achieve high manufacturing precision compared with other types, is convenient for series mass production, is low in manufacturing cost and extremely common in use, is mainly used for bearing radial load, is also commonly used for bearing radial and axial composite load, particularly has high rotating speed of mechanical equipment, can be used for bearing bidirectional pure axial load when a thrust bearing is not adopted, and does not need to be maintained during working.

Further, be equipped with oil blanket 10 between the inboard of end cover 5 and the integral key shaft 2, the inboard of end cover 5 seted up with oil blanket 10 assorted mounting groove, oil blanket 10 assembles inside this mounting groove, through oil blanket 10 and the 2 surface laminating of integral key shaft, avoids the lubricating grease seepage, and wherein oil blanket 10 is single skeleton oil blanket.

More specifically, the end cover 5 is detachably and fixedly connected with the end part of the supporting seat 4 through a bolt 6; the surface roughness Ra of the position, corresponding to the oil seal 10, on the outer side of the end part of the flange 8 is less than or equal to 0.8 mu m, and the phenomenon of lubricating grease leakage is effectively avoided.

Furthermore, the top of the supporting seat 4 is provided with a grease nipple 7, and the grease nipple 7 is used for connecting the grease gun with the supporting seat 4 and adding grease into the supporting seat 4.

As one mode of mounting the flange 8, the flange 8 is fixed to the end of the spline shaft 2 by a gland nut 11, and the end of the spline shaft 2 is provided with an external thread structure matching the gland nut 11.

In order to further avoid that the lubricating grease in the supporting seat 4 overflows, a sealing ring is arranged inside one side, close to the end cover 5, of the deep groove ball bearing 9, and the deep groove ball bearing 9 with the sealing ring on one side widely exists in the prior art, so that the description is omitted.

The embodiment also includes a mining vehicle having the drive support structure of the above embodiment.

Thus, various embodiments of the present invention have been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. The utility model provides a transmission bearing structure, includes the integral key shaft, its characterized in that, the middle part of integral key shaft is rotated and is provided with the supporting seat, the bottom of supporting seat is provided with the mounting panel, the bearing position has all been seted up to the both ends inboard of supporting seat, bearing position internal assembly with integral key shaft assorted deep groove ball bearing, the both ends of supporting seat all are provided with the end cover, the both ends of integral key shaft all are equipped with the bead.

2. The drive support structure of claim 1, wherein: and an oil seal is assembled between the inner side of the end cover and the spline shaft.

3. The drive support structure of claim 2, wherein: the end cover is detachably and fixedly connected with the end part of the supporting seat through a bolt.

4. The drive support structure of claim 2, wherein: the surface processing roughness Ra of the position, corresponding to the oil seal, on the outer side of the end part of the flange is less than or equal to 0.8 mu m.

5. The drive support structure of claim 1, wherein: and a grease nipple is arranged at the top of the supporting seat.

6. The drive support structure of claim 1, wherein: the flange is fixed at the end of the spline shaft through a compression nut.

7. The drive support structure of claim 1, wherein: and a sealing ring is arranged inside one side of the deep groove ball bearing, which is close to the end cover.

8. A mining vehicle having a drive support structure according to any one of claims 1 to 7.

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