Lock bolt for diesel engine bearing

Abstract

The utility model relates to the technical field of bearing bolts, and discloses a lock bolt for a diesel engine bearing, which comprises a bearing body, a bolt body is fixedly arranged on the lower end face of the bearing body, the lower end of the bolt body is a thread part, and the outer side of the thread part is in threaded connection with a hexagon nut. An annular groove is formed in the lower end face of the hexagon nut, and a second mounting groove is formed in the right side of the thread part. By arranging the mounting frame, the limiting block and the first spring, resilience force of the first spring can act on the mounting frame, the limiting block can drive the connecting plate and the inserting plate to move rightwards, and the inserting plate can move to the lower end of the annular groove; according to the anti-loosening device, the second limiting rod, the second spring and the annular groove are arranged, the resilience force of the second spring can act on the connecting plate, the connecting plate can drive the inserting plate to move upwards, the inserting plate can be inserted into the annular groove to abut against the hexagon nut upwards, and therefore the anti-loosening device can play a role in limiting loosening of the hexagon nut.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing bolts, in particular to a lock - preventing bolt for a diesel engine bearing. Background Technique

[0002] A bolt is a type of fastener composed of two parts: a head and a screw rod (a cylinder with external threads). It needs to cooperate with a nut to be used for firmly connecting two parts with through - holes. This connection form is called bolt connection. For example, if the nut is unscrewed from the bolt, the two parts can be separated. Therefore, bolt connection belongs to detachable connection. Bearing bolts usually act on the bearing seat to lock the bearing seat.

[0003] In the prior art, the main bearing bolt is an important connecting fastener for a diesel engine, and its function is to fix the main bearing to the engine body of the diesel engine.

[0004] In the existing bearings, the rotational speed is relatively fast during operation. Some bearing bolts on the market do not have the effect of preventing loosening when in use. When the bearing rotates at a high speed, the bolt is easily loosened gradually under the influence of vibration, thus there are certain potential safety hazards. Content of the Utility Model

[0005] The purpose of the utility model is to provide a lock - preventing bolt for a diesel engine bearing, which can solve the problems raised in the above - mentioned background technique.

[0006] To achieve the above - mentioned purpose, the utility model provides the following technical solution: A lock - preventing bolt for a diesel engine bearing, including a bearing body. A bolt body is fixedly arranged on the lower end surface of the bearing body. The lower end of the bolt body is a threaded part. A hexagonal nut is threadedly connected to the outside of the threaded part. An annular groove is opened on the lower end surface of the hexagonal nut. An installation groove two is opened on the right side of the threaded part. An installation frame is arranged inside the installation groove two. A limiting groove is opened on the left side inside the installation frame. A limiting block is arranged inside the limiting groove. A connecting plate is fixedly arranged on the right side of the limiting block. A plug board is fixedly arranged on the upper end of the connecting plate. Two first springs are fixedly arranged on the left side of the installation frame, and the other ends of the first springs are fixedly arranged on the left side inside the installation groove two. A second limiting rod is arranged inside the installation frame, and the upper and lower ends of the second limiting rod are respectively fixedly arranged on the upper and lower sides inside the installation frame. A second spring is sleeved on the outside of the second limiting rod.

[0007] Preferably, the limiting groove is a T - shaped groove, and the limiting block is a T - shaped block.

[0008] Preferably, a first limiting rod is arranged inside the first spring. A relief groove is opened on the left side inside the installation groove two. One end of the first limiting rod is fixedly arranged on the left side of the installation frame, and the other end of the first limiting rod is arranged inside the relief groove.

[0009] Preferably, the second limiting rod is arranged inside the connecting plate. One end of the second spring is fixedly arranged on the lower end surface of the connecting plate, and the other end of the second spring is fixedly arranged at the bottom inside the mounting frame.

[0010] Preferably, a receiving groove is formed at the bottom inside the second mounting groove.

[0011] Preferably, the inside of the bearing body is a first mounting groove, and a mounting seat is installed inside the first mounting groove.

[0012] Preferably, a shaft hole is formed on the upper end surface of the mounting seat, and a positioning groove is formed on the front side inside the shaft hole.

[0013] Compared with the prior art, the present utility model provides a lock - preventing bolt for a diesel engine bearing, having the following beneficial effects:

[0014] 1. By providing the mounting frame, the limiting block, and the first spring, the resilience of the first spring can act on the mounting frame, so that the limiting block can drive the connecting plate and the inserting plate to move to the right, and the inserting plate can thus move to the lower end of the annular groove.

[0015] 2. By providing the second limiting rod, the second spring, and the annular groove, the resilience of the second spring can act on the connecting plate, so that the connecting plate can drive the inserting plate to move upward, and the inserting plate can thus be inserted into the annular groove to abut against the hexagonal nut upward, thereby playing a role in restricting the loosening of the hexagonal nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three - dimensional structure diagram of the present utility model;

[0017] Figure 2 is a three - dimensional structure diagram of the bottom of the hexagonal nut of the present utility model;

[0018] Figure 3 is a sectional structure diagram of the present utility model;

[0019] Figure 4 is the present utility model Figure 3 the enlarged structure diagram at A in;

[0020] Figure 5 is a three - dimensional structure diagram of the mounting frame and the limiting block of the present utility model.

[0021] Wherein: 1. Bearing body; 2. First mounting groove; 3. Mounting seat; 4. Shaft hole; 5. Positioning groove; 6. Bolt body; 7. Threaded part; 8. Second mounting groove; 9. Hexagonal nut; 10. Annular groove; 11. Mounting frame; 12. Limiting groove; 13. Limiting block; 14. Connecting plate; 15. Insertion plate; 16. First spring; 17. First limiting rod; 18. Relief groove; 19. Second limiting rod; 20. Second spring; 21. Storage groove. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4 , in the figure, a lock - preventing bolt for a diesel engine bearing includes a bearing body 1. A bolt body 6 is fixedly arranged on the lower end surface of the bearing body 1. The lower end of the bolt body 6 is a threaded part 7. A hexagonal nut 9 is threadedly connected to the outside of the threaded part 7. An annular groove 10 is provided on the lower end surface of the hexagonal nut 9. A second mounting groove 8 is provided on the right side of the threaded part 7. An installation frame 11 is arranged inside the second mounting groove 8. A limiting groove 12 is provided on the left side inside the installation frame 11. A limiting block 13 is arranged inside the limiting groove 12. A connecting plate 14 is fixedly arranged on the right side of the limiting block 13. An insertion plate 15 is fixedly arranged on the upper end of the connecting plate 14. Two first springs 16 are fixedly arranged on the left side of the installation frame 11. The other ends of the first springs 16 are fixedly arranged on the left side inside the second mounting groove 8. A second limiting rod 19 is arranged inside the installation frame 11. The upper and lower ends of the second limiting rod 19 are respectively fixedly arranged on the upper and lower sides inside the installation frame 11. A second spring 20 is sleeved on the outside of the second limiting rod 19.

[0025] Please refer to Figure 5 , the limiting groove 12 is a T - shaped groove, and the limiting block 13 is a T - shaped block.

[0026] In this embodiment: both the limiting groove 12 and the limiting block 13 are T - shaped, so that the limiting block 13 can be limited inside the limiting groove 12, and further the limiting block 13 can slide up and down smoothly inside the limiting groove 12.

[0027] Please refer to Figure 4, a limiting rod one 17 is arranged inside the spring one 16, a relief groove 18 is formed on the left side inside the mounting groove two 8, one end of the limiting rod one 17 is fixedly arranged on the left side of the mounting frame 11, and the other end of the limiting rod one 17 is arranged inside the relief groove 18.

[0028] In this embodiment: The arrangement of the limiting rod one 17 can play a role in limiting the spring one 16, thereby preventing the spring one 16 from bending when compressed, and the formation of the relief groove 18 can play a role in making way for the movement of the limiting rod one 17.

[0029] Please refer to Figure 4 , a limiting rod two 19 is arranged inside the connecting plate 14, one end of the spring two 20 is fixedly arranged on the lower end surface of the connecting plate 14, and the other end of the spring two 20 is fixedly arranged at the bottom inside the mounting frame 11.

[0030] In this embodiment: The arrangement of the limiting rod two 19 enables the connecting plate 14 to slide up and down smoothly, and the arrangement of the spring two 20 can drive the connecting plate 14 and the plug plate 15 to move upward.

[0031] Please refer to Figure 4 , a receiving groove 21 is formed at the bottom inside the mounting groove two 8.

[0032] In this embodiment: The formation of the receiving groove 21 facilitates the storage of the plug plate 15, thereby facilitating the operator to screw the hexagon nut 9 onto the threaded portion 7.

[0033] Working principle: The operator first presses the plug plate 15 inward, and then presses the plug plate 15 downward so that the plug plate 15 can be stored inside the receiving groove 21. At this time, the spring one 16 and the spring two 20 are compressed. Then, the operator can screw the hexagon nut 9 onto the threaded portion 7 at the lower end of the bolt body 6. After the hexagon nut 9 is tightened, the operator slides the plug plate 15 upward. The rebounding force of the spring one 16 acts on the plug plate 15 through the mounting frame 11, the limiting block 13, and the connecting plate 14. Thus, the plug plate 15 can extend from the inside of the mounting groove two 8 to the lower end of the annular groove 10. Then, the operator releases the plug plate 15. The rebounding force of the spring two 20 acts on the plug plate 15 through the connecting plate 14. Thus, the plug plate 15 can be inserted into the annular groove 10. At this time, the plug plate 15 can press the hexagon nut 9 upward, thereby playing a role in preventing the hexagon nut 9 from loosening and improving the anti-loosening property of the bearing bolt.

[0034] Embodiment 2

[0035] Please refer to Figure 1 , this embodiment further describes the first embodiment. In the figure, the inside of the bearing body 1 is a mounting groove one 2, and a mounting seat 3 is installed inside the mounting groove one 2.

[0036] In this embodiment: The opening of the first installation groove 2 facilitates the installation of the mounting seat 3, so that the mounting seat 3 can rotate on the bearing body 1.

[0037] Please refer to Figure 1 , a shaft hole 4 is provided on the upper end surface of the mounting seat 3, and a positioning groove 5 is provided on the front side inside the shaft hole 4.

[0038] In this embodiment: The opening of the positioning groove 5 facilitates the positioning and installation of the installation shaft. After aligning the installation shaft with the positioning groove 5, the operator can insert it into the inside of the shaft hole 4 for installation.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" - "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process - method - article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process - method - article or device.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diesel engine bearing anti-loosening bolt, comprising a bearing body (1), characterized in that: A bolt body (6) is fixedly arranged on the lower end surface of the bearing body (1); the lower end of the bolt body (6) is a threaded portion (7); the outer side of the threaded portion (7) is threadedly connected to a hexagonal nut (9); the lower end surface of the hexagonal nut (9) is provided with an annular groove (10); the right side of the threaded portion (7) is provided with a second mounting groove (8); a mounting frame (11) is arranged inside the second mounting groove (8); a limiting groove (12) is arranged on the left side inside the mounting frame (11); a limiting block (13) is arranged inside the limiting groove (12); A connecting plate (14) is fixedly arranged on the right side of the limit block (13), and an inserting plate (15) is fixedly arranged on the upper end of the connecting plate (14). Two springs (16) are fixedly arranged on the left side of the mounting frame (11), and the other end of the spring (16) is fixedly arranged on the left side of the inside of the mounting groove (8). A limiting rod (19) is arranged inside the mounting frame (11), and the upper and lower ends of the limiting rod (19) are respectively fixedly arranged on the upper and lower sides inside the mounting frame (11), and the outer side of the limiting rod (19) is sleeved with a spring (20).

2. The anti-loosening bolt for a diesel engine bearing according to claim 1, characterized in that: The limiting groove (12) is a T-shaped groove, and the limiting block (13) is a T-shaped block.

3. The anti-loosening bolt for a diesel engine bearing according to claim 1, characterized in that: A limiting rod 1 (17) is arranged inside the spring 1 (16), a clearance groove (18) is opened on the left side inside the mounting groove 2 (8), one end of the limiting rod 1 (17) is fixedly arranged on the left side of the mounting frame (11), and the other end of the limiting rod 1 (17) is arranged inside the clearance groove (18).

4. The anti-loosening bolt for a diesel engine bearing according to claim 1, characterized in that: The second limiting rod (19) is arranged inside the connecting plate (14), one end of the second spring (20) is fixedly arranged on the lower end surface of the connecting plate (14), and the other end of the second spring (20) is fixedly arranged on the bottom inside the mounting frame (11).

5. The anti-loosening bolt for a diesel engine bearing according to claim 1, characterized in that: A storage groove (21) is provided at the bottom of the second installation groove (8).

6. The anti-loosening bolt for a diesel engine bearing according to claim 1, characterized in that: The interior of the bearing body (1) is a mounting groove (2), and a mounting seat (3) is installed inside the mounting groove (2).

7. The anti-loosening bolt for a diesel engine bearing according to claim 6, characterized in that: An axial hole (4) is provided on the upper end surface of the mounting seat (3), and a positioning groove (5) is provided on the front side of the interior of the axial hole (4).

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