Sliding bearing for connecting rod

Abstract

The utility model discloses a sliding bearing for a connecting rod, which relates to the technical field of sliding bearings and comprises an upper bearing sleeve, a connecting plate is clamped at the bottom end of the upper bearing sleeve, an upper bearing body is arranged at the bottom end of the connecting plate, a connecting column is fixedly connected at the bottom end of the upper bearing body, and a lower bearing body is arranged at the bottom end of the connecting column. And a lower bearing sleeve is arranged at the bottom end of the lower bearing body. By the adoption of the structure, when the thickness of the bearing is adjusted, the threaded rod can be screwed in the threaded groove by screwing the threaded rod, then thrust is generated, the mounting plate can abut against the bottom end of the upper bearing sleeve so that it can be guaranteed that the threaded rod cannot be screwed out of the round hole, the thrust can eject the upper bearing sleeve upwards or downwards, and then the thickness of the whole bearing can be adjusted; the connecting column and the connecting groove are connected with each other to ensure that the bearing is a whole and cannot be disconnected, so that the normal use of the whole bearing cannot be hindered, and the application range of the whole bearing can be effectively expanded.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sliding bearing technical field, and particularly relates to a sliding bearing for connecting rod. BACKGROUND

[0002] The sliding bearing for connecting rod, also known as connecting rod bearing bush, is a key component in automobile engine, which is installed in the big head hole of connecting rod, is composed of steel back and friction-reducing alloy layer, and realizes relative movement between connecting rod and crankshaft through sliding friction. The bearing can effectively reduce friction and energy loss, support and position the connecting rod, and ensure normal operation of the engine. In addition, it can also help to conduct and dissipate heat generated during engine operation to ensure the engine works in a suitable temperature range.

[0003] However, the existing sliding bearing structure still has some shortcomings. When using the sliding bearing, the thickness of the sliding bearing is in a specified state, which cannot be adjusted, so that the sliding bearing can only be installed on the connecting rod matching its thickness. If the thickness does not match, the sliding bearing needs to be replaced, which is very inconvenient and reduces the application range of the sliding bearing. SUMMARY

[0004] In view of the problems mentioned in the background art, the utility model aims to provide a sliding bearing for connecting rod to solve the problems mentioned in the background art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A sliding bearing for connecting rod, comprising an upper bearing sleeve, a connecting plate is connected to the bottom end of the upper bearing sleeve, an upper bearing body is arranged at the bottom end of the connecting plate, a connecting column is fixedly connected to the bottom end of the upper bearing body, a lower bearing body is arranged at the bottom end of the connecting column, a lower bearing sleeve is arranged at the bottom end of the lower bearing body, a connecting groove matched with the connecting column is arranged at the top end of the lower bearing body, the connecting column is rotatably connected to the inner side of the connecting groove, a connecting shaft is arranged at the top end of the lower bearing sleeve, a connecting sleeve is mounted on the inner side of the connecting shaft, a threaded groove is arranged on the inner wall of the connecting sleeve, a circular hole is arranged at the top end of the upper bearing sleeve, a screw rod is threadedly connected to the inner side of the threaded groove, a screw head is fixedly connected to the top end of the screw rod, the screw head is located on the inner side of the circular hole, an installation plate is fixedly connected to the outer side of the screw rod, the top end of the installation plate is attached to the bottom end of the upper bearing sleeve, and a rotating plate is arranged at the bottom end of the installation plate.

[0007] As a preferred technical scheme, the bottom end of the connecting plate is fixedly connected with a clamping block, the top end of the lower bearing sleeve is provided with a clamping groove matched with the clamping block, the clamping block is clamped in the inner side of the clamping groove, and the connecting plate is clamped to the bottom end of the upper bearing sleeve through the clamping block and the clamping groove.

[0008] As a preferred technical solution, the bottom end of the connecting plate is fixedly connected with a sealing ring made of rubber material, the sealing ring is located on the inner side close to the clamping block, the top end of the lower bearing sleeve is provided with a sealing groove matched with the sealing ring, and the sealing ring covers the inner side of the sealing groove.

[0009] As a preferred technical solution, the inside of the upper bearing body and the lower bearing body is provided with a corrosion-resistant layer, the thickness of the corrosion-resistant layer is two millimeters, and the corrosion-resistant layer is made of aluminum oxide material.

[0010] As a preferred technical solution, the inside of the upper bearing body and the lower bearing body is provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material.

[0011] As a preferred technical solution, the inside of the upper bearing body and the lower bearing body is provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material.

[0012] As a preferred technical solution, the inside of the upper bearing body and the lower bearing body is provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] First, when using, the point position can be installed through the upper bearing sleeve and the lower bearing sleeve. If the thickness of the overall bearing does not match the connecting rod, the user can twist the screw rod through the screw head. The screw rod can be twisted in the screw groove, thereby generating a pushing force. The rotating plate and the circular hole can ensure that the screw rod is not screwed in the upper bearing sleeve. At the same time, the mounting plate can also be placed at the bottom end of the upper bearing sleeve to ensure that the screw rod will not be screwed out of the circular hole. The pushing force generated thereby can push the upper bearing sleeve upward or downward, thereby adjusting the thickness of the overall bearing. The mutual connection of the connecting column and the connecting groove can ensure that it is an integral whole and will not be disconnected, thereby not hindering the normal use of the overall bearing, thereby effectively improving the application range of the overall bearing.

[0015] Second, when the overall bearing structure needs to be maintained later, the user can continuously twist the screw rod to screw it out of the connecting sleeve, thereby discharging the connecting column from the connecting groove, so as to divide the overall bearing into two halves. At the same time, the user can also extract the clamping block from the clamping groove according to the clamping block principle, so as to separately disassemble the upper bearing sleeve and the lower bearing sleeve, so as to divide the overall bearing into multiple individuals. This not only facilitates the disassembly of the overall bearing later, but also is more conducive to the user to individually maintain or repair each structure of the overall bearing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the structure schematic diagram of the upper bearing body of the utility model;

[0017] Figure 2 is the structure schematic diagram of the bottom end of the connecting plate of the utility model;

[0018] Figure 3 is the structure schematic diagram of the top end of the lower bearing body of the utility model;

[0019] Figure 4 is the structure schematic diagram of the bottom end of the connecting plate of the utility model;

[0020] Figure 5 is the structure schematic diagram of the top end of the lower bearing sleeve of the utility model;

[0021] Figure 6 is the structure schematic diagram of the section of the upper bearing body of the utility model.

[0022] Reference signs: 1, upper bearing sleeve; 2, connecting plate; 3, upper bearing body; 4, lower bearing body; 5, lower bearing sleeve; 6, connecting column; 7, mounting plate; 8, rotating plate; 9, screw rod; 10, round hole; 11, screw head; 12, connecting groove; 13, connecting shaft; 14, connecting sleeve; 15, thread groove; 16, clamping block; 17, sealing ring; 18, clamping groove; 19, sealing groove; 20, anticorrosive layer; 21, heat-resistant layer; 22, heat-dissipating layer; 23, reinforcing layer. DETAILED DESCRIPTION

[0023] EMBODIMENT

[0024] REFERENCE Figures 1 to 6The connecting rod sliding bearing of the embodiment comprises an upper bearing sleeve 1, a connecting plate 2 is clamped at the bottom end of the upper bearing sleeve 1, an upper bearing body 3 is arranged at the bottom end of the connecting plate 2, a connecting column 6 is fixedly connected at the bottom end of the upper bearing body 3, a lower bearing body 4 is arranged at the bottom end of the connecting column 6, a lower bearing sleeve 5 is arranged at the bottom end of the lower bearing body 4, a connecting groove 12 matched with the connecting column 6 is arranged at the top end of the lower bearing body 4, the connecting column 6 is rotatably connected to the inner side of the connecting groove 12, a connecting shaft 13 is arranged at the top end of the lower bearing sleeve 5, a connecting sleeve 14 is arranged at the inner side of the connecting shaft 13, a threaded groove 15 is arranged on the inner wall of the connecting sleeve 14, a circular hole 10 is arranged at the top end of the upper bearing sleeve 1, a screw rod 9 is threadedly connected to the inner side of the threaded groove 15, a screw head 11 is fixedly connected to the top end of the screw rod 9, the screw head 11 is arranged at the inner side of the circular hole 10, an installation plate 7 is fixedly connected to the outer side of the screw rod 9, the top end of the installation plate 7 is attached to the bottom end of the upper bearing sleeve 1, and a rotating plate 8 is arranged at the bottom end of the installation plate 7, the bottom end of the upper bearing sleeve 1 and the top end of the lower bearing sleeve 5 are both clamped with the connecting plate 2 structure, the connecting sleeve 14 structure is in a fixed state, and the connecting shaft 13 is in a rotating state, when in use, the upper bearing sleeve 1 and the lower bearing sleeve 5 can facilitate the connection of the connecting rod, when the thickness of the overall bearing needs to be adjusted, the user can rotate the screw rod 9 through the screw head 11, the screw rod 9 can be rotated in the threaded groove 15, and then a pushing force is generated, the rotating plate 8 and the circular hole 10 can ensure that the screw rod 9 is not screwed in the upper bearing sleeve 1, simultaneously, the installation plate 7 can be attached to the bottom end of the upper bearing sleeve 1, so as to ensure that the screw rod 9 will not be screwed out of the circular hole 10, the pushing force generated by the screw rod 9 can push the upper bearing sleeve 1 upward or downward, and then the thickness of the overall bearing can be adjusted, the mutual connection of the connecting column 6 and the connecting groove 12 can ensure that they are an integral whole and will not be disconnected, so as not to hinder the normal use of the overall bearing, and then the application range of the overall bearing can be effectively improved.

[0025] Reference Figures 1 to 5 A clamping block 16 is fixedly connected to the bottom end of the connecting plate 2, a clamping groove 18 matched with the clamping block 16 is arranged at the top end of the lower bearing sleeve 5, the clamping block 16 is clamped at the inner side of the clamping groove 18, and the connecting plate 2 is clamped at the bottom end of the upper bearing sleeve 1 through the clamping block 16 and the clamping groove 18, when the overall bearing structure needs to be maintained later, the user can continuously rotate the screw rod 9, the screw rod 9 is screwed out of the connecting sleeve 14, the connecting column 6 is discharged from the connecting groove 12, so as to divide the overall bearing into two halves, simultaneously, the user can also take out the clamping block 16 from the clamping groove 18 through the clamping block 16 principle, so as to separately disassemble the upper bearing sleeve 1 and the lower bearing sleeve 5, so as to divide the overall bearing into multiple individuals, which can facilitate the disassembly of the overall bearing later, and is also more conducive to the separate maintenance or repair of each structure of the overall bearing.

[0026] Reference Figures 1 to 5The bottom end of the connecting plate 2 is fixedly connected with a sealing ring 17 made of rubber material, the sealing ring 17 is located on the inner side close to the clamping block 16, the top end of the lower bearing sleeve 5 is provided with a sealing groove 19 matched with the sealing ring 17, and the sealing ring 17 covers the inner side of the sealing groove 19. Due to the existence of the sealing ring 17, the connecting point of the connecting plate 2 can be effectively sealed, so that good sealing and dustproof effect can be achieved.

[0027] With reference to Figure 1 With Figure 6 The inner sides of the upper bearing body 3 and the lower bearing body 4 are both provided with a corrosion-resistant layer 20 with a thickness of two millimeters, and the corrosion-resistant layer 20 is made of aluminum oxide material. Due to the existence of the corrosion-resistant layer 20, the aluminum oxide material has the characteristics of high hardness, high temperature stability, wear resistance and corrosion resistance, and is widely used in sliding bearings, which can effectively prolong the service life and reduce the degree of friction and wear.

[0028] With reference to Figure 6 The inner sides of the upper bearing body 3 and the lower bearing body 4 are both provided with a heat-resistant layer 21 with a thickness of five millimeters, and the heat-resistant layer 21 is located on the inner side close to the corrosion-resistant layer 20. The heat-resistant layer 21 is made of copper-based alloy material. Due to the existence of the heat-resistant layer 21, the copper-based alloy material has higher thermal conductivity and better wear resistance than steel, which can effectively prolong the service life of the bearing structure.

[0029] With reference to Figure 6 The inner sides of the upper bearing body 3 and the lower bearing body 4 are both provided with a heat-resistant layer 21 with a thickness of five millimeters, and the heat-resistant layer 21 is located on the inner side close to the corrosion-resistant layer 20. The heat-resistant layer 21 is made of copper-based alloy material. Due to the existence of the heat-resistant layer 21, the copper-based alloy material has higher thermal conductivity and better wear resistance than steel, which can effectively prolong the service life of the bearing structure.

[0030] With reference to Figure 6 The inner sides of the upper bearing body 3 and the lower bearing body 4 are both provided with a heat-resistant layer 21 with a thickness of five millimeters, and the heat-resistant layer 21 is located on the inner side close to the corrosion-resistant layer 20. The heat-resistant layer 21 is made of copper-based alloy material. Due to the existence of the heat-resistant layer 21, the copper-based alloy material has higher thermal conductivity and better wear resistance than steel, which can effectively prolong the service life of the bearing structure.

[0031] Use principle and advantage: When using, the upper bearing sleeve 1 and the lower bearing sleeve 5 can facilitate the connection of the connecting rod. When the overall bearing thickness needs to be adjusted, the user can twist the screw rod 9 through the screw head 11. The screw rod 9 can be twisted in the threaded groove 15, thereby generating a pushing force. The rotating plate 8 and the circular hole 10 can ensure that the screw rod 9 is not threaded inside the upper bearing sleeve 1. At the same time, the mounting plate 7 can also be topped at the bottom end of the upper bearing sleeve 1 to ensure that the screw rod 9 will not be screwed out of the circular hole 10. The pushing force generated thereby will push the upper bearing sleeve 1 upward or downward, thereby enabling the thickness of the overall bearing to be adjusted. The mutual connection of the connecting column 6 and the connecting groove 12 can ensure that it is an integral whole and will not be disconnected, thereby not hindering the normal use of the overall bearing, thereby effectively improving the application range of the overall bearing. When the overall bearing structure needs to be maintained later, the user can continuously twist the screw rod 9 to screw the screw rod 9 out of the connecting sleeve 14, thereby enabling the connecting column 6 to be discharged from the connecting groove 12, so as to split the overall bearing into two halves. At the same time, the user can also extract the clamping block 16 from the clamping groove 18 by using the clamping block 16 principle, so as to separately disassemble the upper bearing sleeve 1 and the lower bearing sleeve 5, so as to split the overall bearing into multiple individuals. This can achieve the convenience of disassembling the overall bearing later, and also facilitates the user to individually maintain or repair each structure of the overall bearing. Due to the existence of the sealing ring 17, the sealing can effectively seal the connection point of the connecting plate 2, thereby achieving good sealing and dustproof effect. Due to the existence of the corrosion-resistant layer 20, the aluminum oxide material has high hardness, high temperature stability, and wear resistance and corrosion resistance. It is widely used in sliding bearings, can effectively prolong the service life and reduce the degree of friction and wear. Due to the existence of the heat-resistant layer 21, the copper-based alloy material has high thermal conductivity and better wear resistance than steel, which can effectively prolong the service life of the bearing structure. Due to the existence of the heat dissipation layer 22, the polytetrafluoroethylene material has certain heat resistance and self-lubricating performance. Its material is used to manufacture non-sliding bearings, which are suitable for some light load, low speed or self-lubricating occasions, and can meet the good heat dissipation demand. Due to the existence of the reinforcing layer 23, the aluminum oxide is a ceramic material, which has high hardness, high wear resistance and high temperature stability, and is suitable for sliding bearings under extreme working conditions, which can improve its own service life.

Claims

1. A sliding bearing for a connecting rod, comprising an upper bearing shell, characterized in that: The bottom end of the upper bearing sleeve is clamped with a connecting plate, the bottom end of the connecting plate is provided with an upper bearing body, the bottom end of the upper bearing body is fixedly connected with a connecting column, the bottom end of the connecting column is provided with a lower bearing body, the bottom end of the lower bearing body is provided with a lower bearing sleeve, the top end of the lower bearing body is provided with a connecting groove matched with the connecting column, and the connecting column is rotatably connected to the inner side of the connecting groove.

2. A sliding bearing for a connecting rod according to claim 1, characterized in that: The bottom end of the connecting plate is fixedly connected with a clamping block, the top end of the lower bearing sleeve is provided with a clamping groove matched with the clamping block, and the clamping block is clamped in the inner side of the clamping groove.

3. A sliding bearing for a connecting rod according to claim 2, characterized in that: The bottom end of the connecting plate is fixedly connected with a sealing ring, the sealing ring is made of rubber material, the sealing ring is located on the inner side close to the clamping block, the top end of the lower bearing sleeve is provided with a sealing groove matched with the sealing ring, and the sealing ring covers the inner side of the sealing groove.

4. The sliding bearing for a connecting rod according to claim 1, characterized in that: The inner sides of the upper bearing body and the lower bearing body are both provided with a corrosion-resistant layer, the thickness of the corrosion-resistant layer is two millimeters, and the corrosion-resistant layer is made of aluminum oxide material.

5. The sliding bearing for a connecting rod according to claim 1, characterized in that: The inner sides of the upper bearing body and the lower bearing body are both provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material.

6. A sliding bearing for a connecting rod according to claim 1, characterized in that: The inner sides of the upper bearing body and the lower bearing body are both provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material.

7. The sliding bearing for a connecting rod according to claim 1, characterized in that: The inner sides of the upper bearing body and the lower bearing body are both provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material. The inner sides of the upper bearing body and the lower bearing body are both provided with a heat-resistant layer, the thickness of the heat-resistant layer is five millimeters, the heat-resistant layer is located on the inner side close to the corrosion-resistant layer, and the heat-resistant layer is made of copper-based alloy material.

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