Tight type connecting rod tile capable of preventing connection from loosening

Abstract

The utility model provides a tight connecting rod bearing capable of preventing connection looseness, which belongs to the technical field of connecting rod bearings and comprises a rod body, and a connecting ring is fixedly arranged at the top of the rod body. According to the utility model, the two connecting rod bearing bushes are sleeved on the crankshaft, and are embedded into the embedding grooves on the semicircular ring and the semicircular ring cover through the two embedding strips of the fixed connecting components on the two connecting rod bearing bushes, so that the arc-shaped plate is embedded into the two arc-shaped grooves at the joint of the semicircular ring and the semicircular ring cover; the two connecting rod bearing bushes are in stable butt joint, meanwhile, the interiors of the connecting positions of the semicircular rings and the semicircular ring covers are fixed, the semicircular rings and the semicircular ring covers are fixed in cooperation with connecting bolts, and the stability of connection between the semicircular rings and the semicircular ring covers is guaranteed; the connecting rod bearing bush is prevented from loosening due to the fact that a connecting bolt between the semicircular ring and the semicircular ring cover slips, relative movement between the connecting rod bearing bush and the semicircular ring and the semicircular ring cover can be prevented, abrasion is reduced, and the service life of the connecting rod bearing bush is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod bearings, in particular to a tight connecting rod bearing capable of preventing connection loosening. Background Art

[0002] The connecting rod bearing, also known as the connecting rod bearing or the connecting rod big end bearing, is an important component of the engine. It is a bearing installed between the connecting rod and the crankshaft. It mainly plays the role of connecting, supporting and transmitting force. The connecting rod bearing and the connecting rod work closely together to form the automobile connecting rod mechanism. This mechanism is the bridge between the piston and the crankshaft, responsible for efficiently transmitting the combustion force borne by the piston to the crankshaft. In this process, the connecting rod bearing ensures the smooth transmission of force and the stable operation of the mechanism through its special structure and material.

[0003] Prior art: A Chinese patent with a patent publication number of CN216382211U discloses a tight-fitting connecting rod bearing that prevents loose connection. The tight-fitting connecting rod bearing that prevents loose connection can facilitate the double fixation of the half bearings by fixing the two half bearings and the connecting rod cover, thereby effectively improving the connection stability of the connecting rod bearing, and can facilitate the limiting treatment between the connecting rod bearing and the connecting rod, thereby improving the service life of the connecting rod bearing and the connecting rod;

[0004] However, this device cannot guarantee the tightness of the connection between the connecting rod cover and the connecting rod. The connecting rod cover and the connecting rod are usually only connected by bolts. When the connecting rod moves violently, the connecting bolts between the connecting rod cover and the connecting rod may slip, causing the connecting rod cover to fix the connecting rod bearing unstably. Therefore, a tight connecting rod bearing that prevents loose connection is designed to solve the above problem. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a tight-fitting connecting rod bearing that prevents loose connection, aiming to solve the problem that when the connecting rod bearing in the prior art is connected to the semicircular ring and the semicircular ring cover, the inside of the connection between the semicircular ring and the semicircular ring cover can be fixed to ensure the stability of the connection between the semicircular ring and the semicircular ring cover, and to prevent the connecting bolts between the semicircular ring and the semicircular ring cover from slipping, causing the connecting rod bearing to loosen.

[0007] 2. Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A tight-fitting connecting rod bearing for preventing loose connection comprises a rod body, a connecting ring, a semicircular ring, a semicircular ring cover, connecting bolts and a connecting rod bearing, wherein a connecting ring is fixedly arranged on the top of the rod body, a semicircular ring is fixedly arranged on the bottom of the rod body, a semicircular ring cover is sleeved under the semicircular ring, the semicircular ring and the semicircular ring cover are fixedly connected by connecting bolts, connecting rod bearings are embedded on both the left and right sides of the semicircular ring and the semicircular ring cover, a fixed connection component is fixedly arranged on the outer surface of the connecting rod bearing, a fixed connection component mounting portion is arranged at the connection between the semicircular ring and the semicircular ring cover, and the fixed connection component mounting portion comprises an arc groove and an embedding groove.

[0010] As a preferred solution of the utility model, the arc groove is opened at the inner connection of the semicircular ring and the semicircular ring cover, an embedding groove is opened at the inner center of the arc groove, and the fixed connection component includes an arc plate and an embedding strip. The arc plate is fixedly arranged at the center of the outer surface of the connecting rod bearing, and embedding strips are fixedly arranged above and below the outer surface of the arc plate.

[0011] As a preferred solution of the utility model, the curvature corresponding to the arc-shaped plate is equal to twice the curvature corresponding to the arc-shaped groove.

[0012] As a preferred solution of the utility model, the embedding groove matches the embedding strip, and both the embedding groove and the embedding strip are in the shape of an inverted "convex" character.

[0013] As a preferred solution of the utility model, the embedding groove is a groove body structure with a sealed inner end and an open outer end, and the embedding strip is interference fit with the embedding groove.

[0014] As a preferred solution of the utility model, the embedding groove includes a mounting groove, a spring and a trapezoidal block, the bottom outer end of the embedding groove is provided with a mounting groove, the bottom of the mounting groove is fixedly provided with a spring, and the top of the spring is fixedly provided with a trapezoidal block.

[0015] As a preferred solution of the utility model, the trapezoidal block is in the shape of a right-angled trapezoid with a high inner side of the upper surface and a low outer side of the upper surface. When the spring is in a naturally extended state, the inner side of the upper surface of the trapezoidal block extends out of the mounting groove, and the outer side of the upper surface of the trapezoidal block is completely embedded in the mounting groove.

[0016] As a preferred solution of the utility model, the distance between the inner surface of the trapezoidal block and the inner end of the embedding groove is equal to the length of the embedding strip.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model sleeves two connecting rod bearings on the crankshaft, and embeds two embedding strips of the fixed connection components on the two connecting rod bearings into the embedding grooves on the semicircular ring and the semicircular ring cover, so that the arc plate is embedded in the two arc grooves at the connection between the semicircular ring and the semicircular ring cover, so that the two connecting rod bearings are stably connected to each other and the inside of the connection between the semicircular ring and the semicircular ring cover is fixed, and the semicircular ring and the semicircular ring cover are fixed with connecting bolts to ensure the stability of the connection between the semicircular ring and the semicircular ring cover, prevent the connecting bolts between the semicircular ring and the semicircular ring cover from slipping and causing the connecting rod bearing to loosen, and can prevent the connecting rod bearing from relative movement between the semicircular ring and the semicircular ring cover, thereby reducing wear and improving the service life of the connecting rod bearing.

[0020] The utility model is provided with a trapezoidal block. When the embedding strip is embedded in the embedding groove, the embedding strip squeezes the trapezoidal block so that the trapezoidal block is completely embedded in the installation groove. The spring is in a compressed state until the embedding strip is attached to the sealing portion of the inner end of the embedding groove. At this time, the inner surface of the trapezoidal block and the outer surface of the embedding strip are in the same vertical plane. The spring pops the trapezoidal block out of the installation groove. The trapezoidal block limits the embedding strip to ensure the stability of the embedding strip in the embedding groove and prevents the embedding strip from sliding inside and outside the embedding groove, thereby preventing the connecting rod bearing from sliding inside and outside the semicircular ring and the semicircular ring cover, thereby preventing the arc plate and the connecting rod bearing from sliding inside and outside the embedding groove, ensuring the stability of the connecting rod bearing installation, reducing wear and further improving the service life of the connecting rod bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a tight-fitting connecting rod bearing that prevents loose connection according to the utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram of a new partial structure of a tight-fitting connecting rod bearing for preventing loose connection according to the utility model;

[0023] Figure 3 It is a schematic diagram of the connecting rod bearing structure of a tight connecting rod bearing that prevents loose connection according to the utility model;

[0024] Figure 4 It is a schematic diagram of a three-dimensional cut structure of a semicircular ring cover of a tight-fitting connecting rod bearing for preventing loose connection according to the utility model;

[0025] Figure 5 The utility model is a tight connecting rod bearing that prevents loose connection Figure 4 A is an enlarged view of the structure.

[0026] In the figure: 1, rod body; 2, connecting ring; 3, semicircular ring; 4, semicircular ring cover; 5, connecting bolt; 6, connecting rod bearing; 7, arc groove; 8, embedded groove; 801, mounting groove; 802, spring; 803, trapezoidal block; 9, arc plate; 901, embedded strip. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0028] See also Figure 1-5 The embodiment of the utility model provides a tight-fitting connecting rod bearing that prevents loose connection, including a rod body 1, a connecting ring 2, a semicircular ring 3, a semicircular ring cover 4, a connecting bolt 5 and a connecting rod bearing bush 6. The connecting ring 2 is fixedly arranged on the top of the rod body 1, the semicircular ring 3 is fixedly arranged on the bottom of the rod body 1, the semicircular ring 3 is sleeved under the semicircular ring 3, the semicircular ring 3 and the semicircular ring cover 4 are fixedly connected by the connecting bolt 5, the semicircular ring 3 and the semicircular ring cover 4 are embedded with connecting rod bearing bushes 6 on both the left and right sides of the semicircular ring 3 and the semicircular ring cover 4, the outer surface of the connecting rod bearing bush 6 is fixedly arranged with a fixed connection component, the connection between the semicircular ring 3 and the semicircular ring cover 4 is provided with a fixed connection component mounting portion, and the fixed connection component mounting portion includes an arc groove 7 and embedding groove 8, the arc groove 7 is opened at the inner connection of the semicircular ring 3 and the semicircular ring cover 4, and an embedding groove 8 is opened at the inner center of the arc groove 7. The fixed connection component includes an arc plate 9 and an embedding strip 901. The arc plate 9 is fixedly set at the center of the outer surface of the connecting rod bearing 6, and embedding strips 901 are fixedly set above and below the outer surface of the arc plate 9. The arc corresponding to the arc plate 9 is equal to twice the arc corresponding to the arc groove 7. When the semicircular ring 3 is connected to the semicircular ring cover 4, the arc plate 9 on the connecting rod bearing 6 is embedded in the two arc grooves 7 at the connection between the semicircular ring 3 and the semicircular ring cover 4 to prevent the connecting rod bearing 6 from moving relative to the semicircular ring 3 and the semicircular ring cover 4, thereby ensuring the stability of the connecting rod bearing 6 during installation.

[0029] In this embodiment, if Figure 1 , Figure 2 and Figure 3As shown, the embedding groove 8 matches the embedding strip 901, and the embedding groove 8 and the embedding strip 901 are both in the shape of an inverted "convex" character. When the arc plate 9 is installed in the two arc grooves 7, the two embedding strips 901 on the arc plate 9 are respectively embedded in the embedding grooves 8 in the semicircular ring 3 and the semicircular ring cover 4, which is convenient for the stable installation of the connecting rod bearing 6 on the semicircular ring 3 and the semicircular ring cover 4, and the inner side surfaces of the semicircular ring 3 and the semicircular ring cover 4 can be connected through the arc plate 9 and the embedding strip 901, thereby ensuring the stability of the connection between the semicircular ring 3 and the semicircular ring cover 4. The embedding groove 8 is a groove body structure with a sealed inner end and an open outer end, and the embedding strip 901 is interference fit with the embedding groove 8, thereby ensuring the stability of the embedding strip 901 when it is in the embedding groove 8, thereby ensuring the stability of the connecting rod bearing 6 installed in the semicircular ring 3 and the semicircular ring cover 4.

[0030] In this embodiment, if Figure 4 , Figure 5 As shown, the embedded groove 8 includes a mounting groove 801, a spring 802 and a trapezoidal block 803. The bottom outer end of the embedded groove 8 is provided with a mounting groove 801, the bottom of the mounting groove 801 is fixedly provided with a spring 802, and the top of the spring 802 is fixedly provided with a trapezoidal block 803. The trapezoidal block 803 is in a right-angled trapezoidal shape with a high inner horizontal height of the upper surface and a low outer horizontal height of the upper surface. When the spring 802 is in a naturally extended state, the inner side of the upper surface of the trapezoidal block 803 extends out of the mounting groove 801, and the outer side of the upper surface of the trapezoidal block 803 is completely embedded in the mounting groove 801. When the embedding strip 901 is embedded in the embedding groove 8 from the outer end, the embedding strip 901 will squeeze the trapezoidal block 803, so that the trapezoidal block 803 is completely embedded in the installation groove 801, and the spring 802 is in a compressed state. The trapezoidal block 803 will not affect the movement of the embedding strip 901 along the embedding groove 8 until the inner end of the embedding strip 901 is attached to the seal at the inner end of the embedding groove 8. At this time, the trapezoidal block 803 is at the outer end of the embedding strip 901, and the elastic force of the spring 802 pops the trapezoidal block 803 out of the installation groove 701, thereby preventing the embedding strip 901 from falling out from the outer end of the installation groove 801.

[0031] In this embodiment, if Figure 4 , Figure 5 As shown, the distance between the inner surface of the trapezoidal block 803 and the inner end of the embedding groove 8 is equal to the length of the embedding strip 901. When the embedding strip 901 is embedded in the embedding groove 8, the inner end of the embedding strip 901 is attached to the inner end seal of the embedding groove 8, and the outer end of the embedding strip 901 is blocked by the trapezoidal block 803 to prevent the embedding strip 901 from sliding in the embedding groove 8, further ensuring the stability of the embedding strip 901 in the embedding groove 8, thereby preventing the arc plate 9 and the connecting rod bearing 6 from sliding in and out of the embedding groove 8, thereby ensuring the stability of the installation of the connecting rod bearing 6.

[0032] Working principle: When the tight-fitting connecting rod bearing that prevents loose connection is used, first, the two connecting rod bearings 6 are sleeved on the crankshaft, and the two embedding strips 901 for fixing the connecting components on the two connecting rod bearings 6 are embedded in the embedding grooves 8 on the semicircular ring 3 and the semicircular ring cover 4, so that the arc plate 9 is embedded in the two arc grooves 7 at the connection between the semicircular ring 3 and the semicircular ring cover, so that the two connecting rod bearings 6 are stably connected to each other and the inside of the connection between the semicircular ring 3 and the semicircular ring cover 4 is fixed, and the semicircular ring 3 and the semicircular ring cover 4 are fixed with the connecting bolts 5 to ensure the stability of the connection between the semicircular ring 3 and the semicircular ring cover 4, prevent the connecting bolts 5 between the semicircular ring 3 and the semicircular ring cover 4 from slipping and causing the connecting rod bearing 6 to loosen, and prevent the connecting rod bearing 6 from relative to the semicircular ring 3 and the semicircular ring cover 4. Movement, reducing wear and tear, and improving the service life of the connecting rod bearing 6. Finally, when the embedding strip 901 is embedded in the embedding groove 8, the embedding strip 901 squeezes the trapezoidal block 803, so that the trapezoidal block 803 is completely embedded in the mounting groove 801, and the spring 802 is in a compressed state until the embedding strip 901 is attached to the seal at the inner end of the embedding groove 8. At this time, the inner surface of the trapezoidal block 803 and the outer surface of the embedding strip 901 are in the same vertical plane, and the spring 802 pops the trapezoidal block 803 out of the mounting groove 801. The trapezoidal block 803 limits the embedding strip 901 to ensure the stability of the embedding strip 901 in the embedding groove 8, thereby preventing the arc plate 9 and the connecting rod bearing 6 from sliding in and out of the embedding groove 8, ensuring the stability of the installation of the connecting rod bearing 6, reducing wear and tear, and further improving the service life of the connecting rod bearing 6.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A tight-fitting connecting rod bearing for preventing loose connection, comprising a rod body (1), a connecting ring (2), a semicircular ring (3), a semicircular ring cover (4), a connecting bolt (5) and a connecting rod bearing bush (6), wherein the connecting ring (2) is fixedly arranged on the top of the rod body (1), the semicircular ring (3) is fixedly arranged on the bottom of the rod body (1), the semicircular ring cover (4) is sleeved below the semicircular ring (3), the semicircular ring (3) and the semicircular ring cover (4) are fixedly connected by connecting bolts (5), and connecting rod bearing bushes (6) are embedded on both left and right sides of the semicircular ring (3) and the semicircular ring cover (4), characterized in that: A fixed connection component is fixedly arranged on the outer surface of the connecting rod bearing (6), and a fixed connection component mounting portion is arranged at the connection between the semicircular ring (3) and the semicircular ring cover (4), wherein the fixed connection component mounting portion comprises an arc groove (7) and an embedding groove (8).

2. The anti-loosening compact connecting rod bearing according to claim 1, characterized in that: The arc groove (7) is provided at the inner connection between the semicircular ring (3) and the semicircular ring cover (4); an embedding groove (8) is provided at the inner center of the arc groove (7); the fixed connection component comprises an arc plate (9) and an embedding strip (901); the arc plate (9) is fixedly provided at the center of the outer surface of the connecting rod bearing (6); and embedding strips (901) are fixedly provided above and below the outer surface of the arc plate (9).

3. The anti-loosening compact connecting rod bearing according to claim 2 is characterized in that: The arc corresponding to the arc plate (9) is equal to twice the arc corresponding to the arc groove (7).

4. The tight-fitting connecting rod bearing for preventing loose connection according to claim 3 is characterized in that: The embedding groove (8) matches the embedding strip (901), and both the embedding groove (8) and the embedding strip (901) are in the shape of an inverted "convex" character.

5. The compact connecting rod bearing for preventing loose connection according to claim 4, characterized in that: The embedding groove (8) is a groove structure with a sealed inner end and an open outer end, and the embedding strip (901) is interference fit with the embedding groove (8).

6. The tight-fitting connecting rod bearing for preventing loose connection according to claim 5, characterized in that: The embedding groove (8) comprises a mounting groove (801), a spring (802) and a trapezoidal block (803); the mounting groove (801) is provided at the outer end of the bottom of the embedding groove (8); the spring (802) is fixedly arranged at the bottom of the mounting groove (801); and the trapezoidal block (803) is fixedly arranged at the top of the spring (802).

7. The tight-fitting connecting rod bearing for preventing loose connection according to claim 6, characterized in that: The trapezoidal block (803) is in the shape of a right-angled trapezoid with a high inner side of the upper surface and a low outer side of the upper surface. When the spring (802) is in a naturally extended state, the inner side of the upper surface of the trapezoidal block (803) extends out of the mounting groove (801), and the outer side of the upper surface of the trapezoidal block (803) is completely embedded in the mounting groove (801).

8. The compact connecting rod bearing for preventing loose connection according to claim 7, characterized in that: The distance between the inner surface of the trapezoidal block (803) and the inner end of the embedding groove (8) is equal to the length of the embedding strip (901).

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