Hard alloy sliding bearing

Abstract

The utility model discloses a hard alloy sliding bearing which comprises a bearing seat and a bearing cover, one end of the bearing cover is hinged with the bearing seat, the other end of the bearing cover is provided with a locking mechanism convenient for fixing the position of the bearing cover, a load mechanism is in interference fit between the bearing seat and the bearing cover, and a shaft sleeve is arranged on the load mechanism. The bottom of the bearing seat is sleeved with a mounting seat, an adjusting mechanism used for adjusting the height of the bearing seat is arranged in the mounting seat, by arranging the adjusting mechanism, the effect of conveniently and rapidly adjusting the position of the shaft sleeve is achieved, the handle is rotated to drive the two-way screw to rotate, so that the threaded blocks are driven to move, and the threaded blocks are close to or away from each other; the height and angle of the shear-type connecting rod are adjusted to drive the bearing seat to move, and the positions of the shaft sleeves are adjusted to ensure that the centers of circles of multiple groups of shaft sleeves on the same shaft are on the same axis, so that multiple groups of bearings can be used in a matched manner, time and labor are saved, and the convenience of the bearings in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding bearings, in particular to a hard alloy sliding bearing. Background Art

[0002] With the rapid development of industrial technology, sliding bearings are an indispensable key component in mechanical equipment, and their performance directly affects the operating efficiency and life of the equipment. Although traditional sliding bearing materials, such as copper alloys and cast iron, have certain load-bearing capacity and wear resistance, they are prone to wear, fatigue and failure under high-load and high-speed working conditions, resulting in reduced equipment performance and increased maintenance costs.

[0003] Chinese patent CN208595155U discloses a compact carbide sliding bearing. The utility model includes a bearing seat, a bearing cover, a lower bearing shell and an upper bearing shell. By setting a fixing clamp rod, a clamping piece and a locking screw, the function of fixing the sleeve is realized. Not only can the sleeve be quickly replaced to avoid continued use after the sleeve is worn, but also the slight arc structure of the clamping piece is used to reduce the wear of the installed components on the sleeve and extend the service life of the sleeve.

[0004] However, when multiple sets of bearings are required to be used together, it is necessary to ensure that the centers of the bearings on the same shaft are on the same axis. When the sliding bearing is in use, the position of the bearing cannot be adjusted, and it is necessary to add a structure on the outside to make the centers of the bearings on the same shaft on the same axis. As a result, the sliding bearing is not easy to install, the operation is cumbersome, time-consuming and labor-intensive, and the convenience of using the bearing and the work efficiency during installation are reduced. Utility Model Content

[0005] In view of the above problems, a cemented carbide sliding bearing is provided. By setting an adjustment structure, the position of the sleeve is easily adjusted, which can ensure that the centers of multiple sets of sleeves on the same shaft are on the same axis, solving the problem that the bearing position cannot be adjusted.

[0006] In order to solve the existing technical problems, the utility model provides the following technical solutions:

[0007] A cemented carbide sliding bearing comprises a bearing seat and a bearing cover, wherein one end of the bearing cover is hinged to the bearing seat, and the other end of the bearing cover is provided with a locking mechanism for fixing the position of the bearing cover, a load mechanism is provided between the bearing seat and the bearing cover in an interference fit, a shaft sleeve is provided on the load mechanism, a mounting seat is provided at the bottom of the bearing seat, an adjusting mechanism for adjusting the height of the bearing seat is provided in the mounting seat, the adjusting mechanism comprises an adjusting member and a driving member, the top of the adjusting member is slidably fitted with the bottom of the bearing seat, and the driving member is rotatably arranged in the mounting seat.

[0008] Preferably, the adjusting member includes a scissor-type connecting rod and a slider, a sliding groove is provided at the bottom of the bearing seat, the slider is symmetrically slidably fitted in the sliding groove, the top of the scissor-type connecting rod is hinged to the slider, the driving member includes a bidirectional screw and a threaded block, the bidirectional screw is rotatably arranged between the side walls of the bearing seat, the threaded block is symmetrically threaded on the bidirectional screw, the bottom of the scissor-type connecting rod is hinged to the top of the threaded block, a handle is provided on the bearing seat, and the handle is fixedly connected to the end of the bidirectional screw.

[0009] Preferably, the load mechanism includes an upper bearing shell and a lower bearing shell, the upper bearing shell is arranged on the bearing cover, and the lower bearing shell is arranged on the bearing seat. A protective layer is applied on both the upper bearing shell and the lower bearing shell. A buffer gasket is provided on the side wall of the lower bearing shell in contact with the upper bearing shell, and the side wall of the sleeve is in contact with the protective layer. The upper bearing shell is provided with a stabilizing mechanism for preventing the sleeve from shaking during use.

[0010] Preferably, the surfaces of the upper bearing shell and the lower bearing shell are both provided with microporous structures, and the microporous structures are arranged in a circumferential manner.

[0011] Preferably, the stabilizing mechanism comprises a fixing clamping rod, which is symmetrically arranged on the surface of the upper bearing shell, and is fixed to the upper bearing shell by a locking screw, and a plurality of fixing clamping rods are provided and arranged in a circle.

[0012] Preferably, the fixing clamp rod is provided with a plurality of rolling grooves, and matching balls are provided in the rolling grooves, and the balls are in rolling contact with the surface of the sleeve.

[0013] Preferably, the locking mechanism comprises a fixing block and a bolt, the fixing block is fixed on the side wall of the bearing cover, the fixing block is provided with a through hole for the bolt to pass through, and the top of the bearing seat is provided with a locking hole adapted to the bolt.

[0014] Preferably, an oil filling hole is provided on the top of the bearing cover, an oil cup is threadedly connected to the oil filling hole, and an oil groove is provided at the bottom of the oil filling hole.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model achieves the effect of conveniently and quickly adjusting the position of the shaft sleeve by setting an adjustment mechanism. When the position of the shaft sleeve needs to be adjusted, the handle is turned to drive the bidirectional screw to rotate, thereby driving the threaded block to move, so that the threaded blocks are close to or away from each other, and the height and angle of the scissor-type connecting rod are adjusted, thereby driving the bearing seat to move the position. At the same time, the position of the shaft sleeve is adjusted to ensure that the centers of multiple sets of shaft sleeves on the same shaft are on the same axis, which is conducive to the coordinated use of multiple sets of bearings, is easy to operate, saves time and effort, and improves the convenience of using the bearings.

[0017] 2. The utility model achieves the effect of facilitating the replacement of the shaft sleeve by setting a locking mechanism. When the shaft sleeve needs to be replaced, the bolt is loosened, and the bearing cover is flipped over by the hinge to release the locking state, the shaft sleeve is taken out, and a new shaft sleeve is placed on the bearing seat, so that the shaft sleeve can be quickly replaced, thereby improving the convenience and practicality of the sliding bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a cemented carbide sliding bearing.

[0019] Figure 2 The present invention is a schematic structural diagram of a side view of a cemented carbide sliding bearing.

[0020] Figure 3 The present invention is a schematic diagram of the internal structure of a mounting seat of a cemented carbide sliding bearing.

[0021] Figure 4 The present invention is a structural schematic diagram of an adjustment mechanism of a cemented carbide sliding bearing.

[0022] Figure 5 It is a structural schematic diagram of the load mechanism of a cemented carbide sliding bearing.

[0023] Figure 6 It is a structural schematic diagram of a stabilizing mechanism of a cemented carbide sliding bearing.

[0024] 10. The numbers in the figure are: 100, mounting seat; 101, bearing seat; 102, bearing cover; 103, oil cup; 104, mounting block; 105, mounting hole; 200, locking mechanism; 201, fixing block; 202, bolt; 203, locking hole; 300, load mechanism; 301, bushing; 302, upper bearing shell; 303, lower bearing shell; 304, buffer gasket; 305, protective layer; 306, microporous structure; 400, adjustment mechanism; 401, slide groove; 402, handle; 403, bidirectional screw; 404, threaded block; 405, scissor-type connecting rod; 406, slider; 500, stabilizing mechanism; 501, locking screw; 502, fixing clamp rod; 503, rolling groove; 504, ball. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figure 1-Figure 6As shown, a cemented carbide sliding bearing comprises a bearing seat 101 and a bearing cover 102, wherein one end of the bearing cover 102 is hinged to the bearing seat 101, and the other end of the bearing cover 102 is provided with a locking mechanism 200 for fixing the position of the bearing cover 102, and is characterized in that a load mechanism 300 is interference-fitted between the bearing seat 101 and the bearing cover 102, a shaft sleeve 301 is provided on the load mechanism 300, a mounting seat 100 is sleeved on the bottom of the bearing seat 101, mounting blocks 104 are symmetrically fixedly provided at the bottom of the mounting seat 100, mounting holes 105 are provided on the mounting blocks 104, an adjusting mechanism 400 for adjusting the height of the bearing seat 101 is provided in the mounting seat 100, and the adjusting mechanism 400 comprises an adjusting member and a driving member, the top of the adjusting member is slidably fitted with the bottom of the bearing seat 101, and the driving member is rotatably arranged in the mounting seat 100.

[0027] When in use, the mounting base 100 is installed on the equipment by means of bolts passing through the mounting holes 105. When multiple sets of bearings are required for use, the adjusting member is driven to move by the driving member, and the mounting base 100 is driven to move by the adjusting member, thereby adjusting the position of the bushing 301 so that the centers of the multiple sets of bushings 301 on the same shaft can be ensured to be on the same axis. When the bushing 301 is excessively worn and needs to be replaced, the locking state is released by the locking mechanism 200, and the bearing cover 102 can be opened to replace the bushing 301.

[0028] By setting the adjustment mechanism 400, the position of the sleeve 301 can be adjusted quickly and conveniently, which can ensure that the centers of the sliding bearings on the same shaft are on the same axis. The operation is simple, time-saving and labor-saving, and the convenience of using the bearings is improved. At the same time, by setting the locking mechanism 200, the sleeve 301 can be easily replaced, thereby enhancing the flexibility of the sliding bearing.

[0029] See also Figure 3-Figure 4 As shown, the adjusting member includes a scissor-type connecting rod 405 and a slider 406. A slide groove 401 is provided at the bottom of the bearing seat 101. The slider 406 is symmetrically slidably fitted in the slide groove 401. The top of the scissor-type connecting rod 405 is hinged to the slider 406. The driving member includes a bidirectional screw 403 and a threaded block 404. The bidirectional screw 403 is rotatably arranged between the side walls of the bearing seat 101. The threaded block 404 is symmetrically threaded on the bidirectional screw 403. The bottom of the scissor-type connecting rod 405 is hinged to the top of the threaded block 404. A handle 402 is provided on the bearing seat 101, and the handle 402 is fixedly connected to the end of the bidirectional screw 403.

[0030] When the position of the shaft sleeve 301 needs to be adjusted, the handle 402 is turned to drive the bidirectional screw 403 to rotate, thereby driving the threaded block 404 to move, so that the threaded blocks 404 are moved closer or farther away from each other, and the height and angle of the scissor-type connecting rod 405 are adjusted, thereby driving the bearing seat 101 to move its position. At the same time, the position of the shaft sleeve 301 is adjusted to ensure that the centers of multiple sets of shaft sleeves 301 on the same axis are on the same axis, which is conducive to the use of multiple sets of bearings and solves the problem of how to adjust the centers of bearings to be on the same axis. The cross-section of the slide groove 401 is T-shaped to prevent the slider 406 from falling off, making the scissor-type connecting rod 405 more stable when moving, thereby improving the stability of the sliding bearing.

[0031] See also Figure 1-Figure 5 As shown, the load mechanism 300 includes an upper bearing shell 302 and a lower bearing shell 303. The upper bearing shell 302 is arranged on the bearing cover 102, and the lower bearing shell 303 is arranged on the bearing seat 101. The upper bearing shell 302 and the lower bearing shell 303 are coated with a protective layer 305. The side wall of the lower bearing shell 303 in contact with the upper bearing shell 302 is provided with a buffer gasket 304, and the side wall of the sleeve 301 is in contact with the protective layer 305. The upper bearing shell 302 is provided with a stabilizing mechanism 500 for preventing the sleeve 301 from shaking during use.

[0032] The upper bearing 302 and the lower bearing 303 are both made of tungsten carbide-based cemented carbide material, which has extremely high hardness and wear resistance, significantly improving the service life and reliability of the sliding bearing. They are assembled with interference fit. After the upper bearing 302 and the lower bearing 303 are heated to expand them, they are respectively installed in the bearing cover 102 and the bearing seat 101. After cooling, a tight combination is formed, which effectively prevents the upper bearing 302 and the lower bearing 303 from loosening and falling off during operation. A protective layer 305 is provided to reduce the wear on the sleeve 301.

[0033] See also Figure 5 As shown, the surfaces of the upper bearing 302 and the lower bearing 303 are both provided with microporous structures 306, and the microporous structures 306 are arranged in a circle.

[0034] By providing the microporous structure 306, the storage and distribution capacity of the sliding bearing for lubricating oil is increased, and the lubrication performance of the sliding bearing is further improved.

[0035] See also Figure 5-Figure 6 As shown, the stabilizing mechanism 500 includes a fixing clamp rod 502, which is symmetrically arranged on the surface of the upper bearing shell 302. The fixing clamp rod 502 is fixed on the upper bearing shell 302 by a locking screw 501. There are multiple fixing clamp rods 502 arranged in a circle.

[0036] The symmetrically arranged fixing clamp rods 502 can prevent the shaft sleeve 301 from shaking during use, thereby improving the stability of the sliding bearing.

[0037] See also Figure 6 As shown, the fixing clamp rod 502 is provided with a plurality of rolling grooves 503 , and matching balls 504 are provided in the rolling grooves 503 , and the balls 504 are in rolling contact with the surface of the shaft sleeve 301 .

[0038] By providing the rolling groove 503 and the ball 504 , the friction on the shaft sleeve 301 is reduced, and the service life of the shaft sleeve 301 is effectively extended.

[0039] See also Figure 1-Figure 2 As shown, the locking mechanism 200 includes a fixing block 201 and a bolt 202. The fixing block 201 is fixed on the side wall of the bearing cover 102. The fixing block 201 is provided with a through hole for the bolt 202 to pass through. The top of the bearing seat 101 is provided with a locking hole 203 adapted to the bolt 202.

[0040] Pass the bolt 202 through the through hole, insert it into the locking hole 203, and tighten the bolt 202 to fix the bearing cover 102 on the bearing seat 101. When the sleeve 301 needs to be replaced, loosen the bolt 202, then flip the bearing cover 102 through the hinge to release the locking state, take out the sleeve 301, and then place a new sleeve 301 on the bearing seat 101, so as to realize the quick replacement of the sleeve 301, thereby improving the convenience and practicality of the sliding bearing.

[0041] See also Figure 1-Figure 2 As shown, an oil filling hole is provided on the top of the bearing cover 102, an oil cup 103 is threadedly connected to the oil filling hole, and an oil groove is provided at the bottom of the oil filling hole.

[0042] By providing the oil filling hole, the oil cup 103 and the oil groove, it is ensured that the sliding bearing is fully lubricated and cooled during operation, thereby reducing the friction and wear of the sliding bearing.

[0043] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A cemented carbide sliding bearing, comprising a bearing seat (101) and a bearing cover (102), wherein one end of the bearing cover (102) is hinged to the bearing seat (101), and the other end of the bearing cover (102) is provided with a locking mechanism (200) for fixing the position of the bearing cover (102), characterized in that: A load mechanism (300) is interference-fitted between the bearing seat (101) and the bearing cover (102); a shaft sleeve (301) is provided on the load mechanism (300); a mounting seat (100) is sleeved on the bottom of the bearing seat (101); an adjustment mechanism (400) for adjusting the height of the bearing seat (101) is provided in the mounting seat (100); the adjustment mechanism (400) comprises an adjustment member and a driving member; the top of the adjustment member is slidably fitted with the bottom of the bearing seat (101); and the driving member is rotatably arranged in the mounting seat (100).

2. A cemented carbide sliding bearing according to claim 1, characterized in that: The adjusting member comprises a scissor-type connecting rod (405) and a slider (406); a slide groove (401) is provided at the bottom of the bearing seat (101); the slider (406) is symmetrically slidably fitted in the slide groove (401); the top of the scissor-type connecting rod (405) is hinged to the slider (406); the driving member comprises a bidirectional screw rod (403) and a threaded block (404); the bidirectional screw rod (403) is rotatably arranged between the side walls of the bearing seat (101); the threaded block (404) is symmetrically threadedly arranged on the bidirectional screw rod (403); the bottom of the scissor-type connecting rod (405) is hinged to the top of the threaded block (404); a handle (402) is provided on the bearing seat (101); the handle (402) is fixedly connected to the end of the bidirectional screw rod (403).

3. A cemented carbide sliding bearing according to claim 2, characterized in that: The load mechanism (300) comprises an upper bearing shell (302) and a lower bearing shell (303), wherein the upper bearing shell (302) is arranged on the bearing cover (102), and the lower bearing shell (303) is arranged on the bearing seat (101), and a protective layer (305) is applied on both the upper bearing shell (302) and the lower bearing shell (303), and a buffer gasket (304) is arranged on the side wall of the lower bearing shell (303) in contact with the upper bearing shell (302), and the side wall of the shaft sleeve (301) is in contact with the protective layer (305), and a stabilizing mechanism (500) is arranged on the upper bearing shell (302) for preventing the shaft sleeve (301) from shaking during use.

4. A cemented carbide sliding bearing according to claim 3, characterized in that: The surfaces of the upper bearing shell (302) and the lower bearing shell (303) are both provided with microporous structures (306), and the microporous structures (306) are arranged in a circumferential manner.

5. A cemented carbide sliding bearing according to claim 3, characterized in that: The stabilizing mechanism (500) comprises a fixing clamping rod (502) which is symmetrically arranged on the surface of the upper bearing shell (302). The fixing clamping rod (502) is fixed on the upper bearing shell (302) by means of a locking screw (501). A plurality of fixing clamping rods (502) are provided and arranged in a circle.

6. A cemented carbide sliding bearing according to claim 5, characterized in that: The fixed clamping rod (502) is provided with a plurality of rolling grooves (503), and matching balls (504) are provided in the rolling grooves (503), and the balls (504) are in rolling contact with the surface of the shaft sleeve (301).

7. The cemented carbide sliding bearing according to claim 1, characterized in that: The locking mechanism (200) comprises a fixing block (201) and a bolt (202); the fixing block (201) is fixedly arranged on the side wall of the bearing cover (102); a through hole for the bolt (202) to pass through is provided on the fixing block (201); and a locking hole (203) adapted to the bolt (202) is provided on the top of the bearing seat (101).

8. The cemented carbide sliding bearing according to claim 7, characterized in that: The top of the bearing cover (102) is provided with an oil filling hole, an oil cup (103) is threadedly connected to the oil filling hole, and an oil groove is provided at the bottom of the oil filling hole.

Images