Bearing sealing structure of conveying shaft

Abstract

The bearing sealing structure comprises a bearing seat, a bearing and a water retaining cover, an installation connecting seat is arranged in the middle of the bearing seat, a bearing installation cavity is formed in the installation connecting seat, the bearing is installed in the bearing installation cavity, at least one connecting clamping groove is formed in the outer side wall of the end of the installation connecting seat, and the water retaining cover is arranged in the connecting clamping groove. And the water retaining cover covers the bearing mounting cavity and is connected with the connecting clamping groove. According to the utility model, the mounting connecting seat on the bearing seat and the water retaining cover are combined to form a sealing structure, so that most of water entering the bearing mounting cavity can be reduced, and the bearing mounting cavity can drain water through the drain hole, so that the contact amount of the bearing oil seal and the water is greatly reduced, and the service life of the bearing oil seal is prolonged.

Description

Technical Field

[0001] The utility model relates to a conveying shaft of a plate grinding machine in the PCB industry, in particular to a bearing sealing structure of the conveying shaft. Background Art

[0002] The existing grinding machine conveyor roller shaft or steel roller shaft generally uses a conventional sealing method, namely bearing + oil seal + water retaining cover. This method has a gap between the water retaining cover and the bearing seat, allowing water to enter along the shaft and contact the oil seal, accelerating its wear, and then causing water to enter and damage the bearing, requiring frequent maintenance of the equipment.

[0003] In view of this, the utility model aims to provide a bearing sealing structure for a conveying shaft, which can greatly reduce the amount of contact between the oil seal and water, thereby extending the service life of the oil seal. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a bearing sealing structure for a conveying shaft.

[0005] The purpose of the utility model is achieved through the following technical solution: a bearing sealing structure for a conveying shaft, comprising a bearing seat, a bearing and a water retaining cover, wherein a mounting connection seat is provided in the middle of the bearing seat, a bearing mounting cavity is provided in the mounting connection seat, the bearing is mounted in the bearing mounting cavity, at least one connecting slot is provided on the outer side wall of the end of the mounting connection seat, and the water retaining cover covers the bearing mounting cavity and is connected to the connecting slot. By combining the mounting connection seat on the bearing seat and the water retaining cover into a sealing structure, most of the water entering the bearing mounting cavity can be reduced, and the bearing mounting cavity can be drained through the drainage hole, which greatly reduces the contact amount between the bearing oil seal and water, thereby extending the service life of the bearing oil seal.

[0006] As an improvement to the bearing sealing structure of the conveying shaft of the present invention, a clamping groove is provided at one end of the water retaining cover, an annular protrusion is provided on the inner side wall edge of the clamping groove, and the annular protrusion cooperates with the connecting clamping groove.

[0007] As an improvement to the bearing sealing structure of the conveying shaft of the present invention, a drainage hole is further provided on the outer side wall of the end portion of the mounting connection seat, so that water entering the bearing mounting cavity can be discharged from the drainage hole.

[0008] As an improvement to the bearing sealing structure of the conveyor shaft of the present invention, a bearing oil seal is further provided in the bearing mounting cavity, one end of which abuts against the side of the bearing. The bearing oil seal can prevent water entering the bearing mounting cavity from contacting the bearing.

[0009] As an improvement to the bearing seal structure of the conveyor shaft of the present invention, the utility model further includes a conveyor shaft, the end of which is inserted into the bearing mounting cavity and connected to the bearing and the bearing oil seal. The bearing and the bearing oil seal are sleeved on the end of the conveyor shaft. The bearings at both ends of the conveyor shaft are each mounted in a bearing mounting cavity formed by a sealing structure formed by a mounting connector and a water retaining cover.

[0010] As an improvement to the bearing seal structure of the conveyor shaft of the present invention, an oil seal groove is provided at the other end of the water retaining cover, within which a water retaining cover oil seal is located. Both the water retaining cover and the water retaining cover oil seal are sleeved onto the conveyor shaft. The water retaining cover oil seal seals the gap between the water retaining cover and the conveyor shaft, thereby reducing the ingress of water from the conveyor shaft into the bearing mounting cavity.

[0011] As an improvement to the bearing sealing structure of the conveying shaft of the present invention, it further includes the bearing seat mounting side plate, the bearing seat mounting side plate is provided with a mounting hole, and the end of the mounting connecting seat passes through the mounting hole.

[0012] As an improvement to the bearing sealing structure of the conveying shaft of the present invention, a plurality of screw counterbores are provided at intervals on the bearing seat, each of which is penetrated by a fixing screw, and the fixing screw is screwed and fixed to the mounting side plate of the bearing seat.

[0013] The beneficial effect of the present invention is that the present invention forms a sealing structure by combining the mounting connection seat and the water retaining cover on the bearing seat, which can reduce most of the water entering the bearing mounting cavity, and the bearing mounting cavity can be drained through the drainage hole, which greatly reduces the contact amount between the bearing oil seal and water, thereby extending the service life of the bearing oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model;

[0015] Figure 2 It is a partial structural diagram of the utility model;

[0016] The accompanying drawings are marked as follows: 1. bearing seat, 2. bearing, 3. water retaining cover, 4. drainage hole, 5. bearing oil seal, 6. conveying shaft, 7. bearing seat mounting side plate, 8. mounting hole, 9. screw countersunk hole, 10. fixing screw, 11. mounting connecting seat, 12. bearing mounting cavity, 13. connecting slot, 31. snap-on groove, 32. annular protrusion, 33. oil seal groove, 34. water retaining cover oil seal. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0020] like Figure 1 and Figure 2 As shown, a bearing sealing structure for a conveyor shaft includes a bearing seat 1, a bearing 2, and a water retaining cover 3. A mounting connection seat 11 is provided in the middle of the bearing seat 1. A bearing mounting cavity 12 is provided in the mounting connection seat 11. The bearing 2 is mounted in the bearing mounting cavity 12. At least one connecting slot 13 is provided on the outer side wall of the end of the mounting connection seat 11. The water retaining cover 3 covers the bearing mounting cavity 12 and is connected to the connecting slot 13. By combining the mounting connection seat 11 on the bearing seat 1 and the water retaining cover 3 to form a sealing structure, most water can be reduced from entering the bearing mounting cavity 12, and the bearing mounting cavity 12 can be drained through the drainage hole, greatly reducing the amount of contact between the bearing oil seal and water, thereby extending the service life of the bearing oil seal.

[0021] Preferably, a clamping groove 31 is provided at one end of the water retaining cover 3 , and an annular protrusion 32 is provided on the inner side wall edge of the clamping groove 31 , and the annular protrusion 32 cooperates with the connecting clamping groove 13 .

[0022] Preferably, a drainage hole 4 is further provided on the outer side wall of the end portion of the mounting connector 11. Water entering the bearing mounting cavity 12 can be discharged from the drainage hole 4.

[0023] Preferably, a bearing oil seal 5 is further provided in the bearing mounting cavity 12, and one end of the bearing oil seal 5 abuts against the side of the bearing 2. The bearing oil seal 5 can prevent water entering the bearing mounting cavity 12 from contacting the bearing 2.

[0024] Preferably, the conveying shaft 6 is further included, the ends of which are inserted into the bearing mounting cavity 12 and connected to the bearing 2 and the bearing oil seal 5. The bearing 2 and the bearing oil seal 5 are sleeved on the ends of the conveying shaft 6. The bearings 2 at both ends of the conveying shaft 6 are both arranged in the bearing mounting cavity 12, which is a sealed structure formed by the mounting connection seat 11 and the water retaining cover 3.

[0025] Preferably, the other end of the water retaining cover 3 is provided with an oil seal groove 33, and a water retaining cover oil seal 34 is provided in the oil seal groove 33. The water retaining cover 3 and the water retaining cover oil seal 34 are both sleeved on the conveying shaft 6. The water retaining cover oil seal 34 can seal the gap between the water retaining cover 3 and the conveying shaft 6, and can reduce the entry of water from the conveying shaft into the bearing mounting cavity 12.

[0026] Preferably, it further comprises a bearing seat mounting side plate 7 , on which a mounting hole 8 is provided, and the end of the mounting connecting seat 11 passes through the mounting hole 8 .

[0027] Preferably, a plurality of screw countersunk holes 9 are provided at intervals on the bearing seat 1 , and a fixing screw 10 is passed through each screw countersunk hole 9 , and the fixing screw 10 is screwed and fixed to the bearing seat mounting side plate 7 .

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and structure of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing sealing structure for a conveying shaft, characterized in that: It includes a bearing seat, a bearing and a water retaining cover. The middle part of the bearing seat is provided with a mounting connection seat, and a bearing mounting cavity is provided in the mounting connection seat. The bearing is installed in the bearing mounting cavity. At least one connecting slot is provided on the outer side wall of the end of the mounting connection seat. The water retaining cover is covered on the bearing mounting cavity and connected to the connecting slot.

2. The bearing sealing structure of the conveying shaft according to claim 1, characterized in that: One end of the water retaining cover is provided with a clamping groove, and an annular protrusion is provided on the inner side wall edge of the clamping groove, and the annular protrusion cooperates with the connecting clamping groove.

3. The bearing sealing structure of the conveying shaft according to claim 1, characterized in that: A drainage hole is also provided on the outer side wall of the end portion of the mounting and connecting seat.

4. The bearing sealing structure of the conveying shaft according to claim 2, characterized in that: A bearing oil seal is further provided in the bearing installation cavity, and one end of the bearing oil seal abuts against the side of the bearing.

5. The bearing sealing structure of the conveying shaft according to claim 4, characterized in that: It also includes a conveying shaft, the end of which is inserted into the bearing installation cavity and connected to the bearing and the bearing oil seal.

6. The bearing sealing structure of the conveying shaft according to claim 5, characterized in that: The other end of the water retaining cover is provided with an oil seal groove, in which a water retaining cover oil seal is provided. The water retaining cover and the water retaining cover oil seal are both sleeved on the conveying shaft.

7. The bearing sealing structure of the conveying shaft according to claim 1, characterized in that: It also includes a bearing seat mounting side plate, the bearing seat mounting side plate is provided with a mounting hole, and the end of the mounting connecting seat passes through the mounting hole.

8. The bearing sealing structure of the conveying shaft according to claim 7, characterized in that: The bearing seat is also provided with a plurality of screw countersunk holes at intervals, and each of the screw countersunk holes is penetrated by a fixing screw, and the fixing screw is screwed and fixed to the mounting side plate of the bearing seat.

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