Crankshaft connecting rod structure

Abstract

The utility model relates to the technical field of crankshaft connecting rods, in particular to a crankshaft connecting rod structure. The device comprises a main connecting rod, a first arc-shaped block and a second arc-shaped block, the second arc-shaped block is fixed to the left end of the main connecting rod, the first arc-shaped block is slidably connected to the left end of the second arc-shaped block, first limiting blocks are fixed to the two sides of the first arc-shaped block, second limiting blocks are fixed to the two sides of the second arc-shaped block, and L-shaped blocks are rotationally connected into the first limiting blocks; a traction block is slidably connected into the second limiting block, and a U-shaped pull block is fixed to the left end of the traction block. According to the crankshaft connecting rod structure, the crankshaft is spliced through the first arc-shaped block and the second arc-shaped block, the L-shaped blocks on the two sides of the first arc-shaped block are connected with the U-shaped pull block in a clamped mode, and then the traction block moves in the direction away from the first arc-shaped block, so that the traction block drives the U-shaped pull block to pull the L-shaped blocks; and therefore, the traction force is stably kept, and the disassembling efficiency of the connecting rod structure and the crankshaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft connecting rods, in particular to a crankshaft connecting rod structure. Background Art

[0002] When the crankshaft inside the compressor is working, it needs to be assembled with a connecting rod that is fixed to it. The connecting rod is usually divided into two parts, and the connection between the crankshaft and the connecting rod is completed by organizing the two parts of the connecting rod.

[0003] For example, patent (CN218093864U) discloses a crankshaft connecting rod structure, including a connecting rod big end and a connecting rod small end, the opposite side walls of the connecting rod big end and the connecting rod small end are respectively provided with connecting rod bolt holes passing through the connecting rod big end and the connecting rod small end, the opposite side walls of the connecting rod big end and the connecting rod small end are provided with positioning ring grooves connected to the connecting rod bolt holes, a positioning sleeve is installed in the positioning ring groove between the connecting rod big end and the connecting rod small end, and the inner cavity of the connecting rod big end and the connecting rod small end is equipped with a connecting rod bolt assembly passing through the connecting rod bolt hole and the connecting hole.

[0004] When using the above technology, it was found that the following technical problems exist in the existing technology: in the existing technology, the two parts of the rod body are connected and fixed by bolts, and the bolts are in full contact with the inner cavity of the rod body to ensure that the positioning bolts and the rod body have a high degree of tightness, thereby ensuring the stable positioning of the rod body. The positioning bolts are used to position the two parts of the rod body and also provide a pre-tightening force for the two parts of the rod body. However, due to the full contact between the positioning bolts and the rod body, it is difficult to remove the positioning bolts during maintenance after long-term use, and it is inconvenient to separate the two parts of the rod body. The disassembly process is time-consuming and laborious, and the positioning bolts and the rod body will also be worn during the disassembly process. For this reason, we design a crankshaft connecting rod structure to provide another technical solution to the above technical problems. Utility Model Content

[0005] Based on this, it is necessary to provide a crankshaft connecting rod structure to address the above technical problems. During use, when arc block one and arc block two need to be connected and assembled with the crankshaft, arc block one and arc block two are spliced ​​to the crankshaft, and the L-shaped blocks on both sides of arc block one are clamped with the U-shaped pull block, and then the traction block moves away from arc block one, so that the traction block drives the U-shaped pull block to pull the L-shaped block, and then this traction force is stably maintained, so as to improve the disassembly efficiency of the connecting rod structure and the crankshaft, thereby improving the practicality and convenience of the connecting rod structure.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A crankshaft connecting rod structure includes a main connecting rod, an arc block 1 and an arc block 2, wherein the left end of the main connecting rod is fixed with the arc block 2, the left end of the arc block 2 is slidably connected with the arc block 1, the two sides of the arc block 1 are fixed with the limiting block 1, the two sides of the arc block 2 are fixed with the limiting block 2, the internal rotation of the limiting block 1 is connected with an L-shaped block, the internal sliding of the limiting block 2 is connected with a traction block, the left end of the traction block is fixed with a U-shaped pull block, and the end of the L-shaped block away from the limiting block 1 is clamped with the U-shaped pull block.

[0008] As a preferred embodiment of the crankshaft connecting rod structure provided by the present invention, a buffer pad is fixed between the arc block 1 and the arc block 2, and an arc-shaped rotating shaft is fixed on the inner side of the arc block 1 and the arc block 2.

[0009] As a preferred embodiment of the crankshaft connecting rod structure provided by the present invention, a traction mechanism for driving the traction block to move is provided inside the limit block 2, and the traction mechanism includes a threaded sleeve, a screw rod, a nut and an anti-reverse component. The inside of the limit block 2 is rotatably connected with a screw rod, the right end of the traction block is fixed with a threaded sleeve, the left end of the screw rod is threadedly connected to the threaded sleeve, and the right end of the screw rod is fixed with a nut.

[0010] As a preferred embodiment of the crankshaft connecting rod structure provided by the present invention, a screwing hole is provided on the outer side of the nut, and a Pozidriv groove is provided on the right end of the nut.

[0011] As a preferred embodiment of the crankshaft-connecting rod structure provided by the present invention, the anti-reverse component includes a nut and a pawl, a ratchet is fixed to the outside of the screw rod, the right end of the limit block 2 is rotatably connected to the pawl, and the bottom end of the pawl is engaged with the ratchet.

[0012] As a preferred embodiment of the crankshaft connecting rod structure provided by the present invention, guide grooves are provided at the top and bottom ends of the second limiting block, and the inner side of the guide groove is slidably connected to the traction block.

[0013] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

[0014] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0015] The utility model provides a crankshaft connecting rod structure, in which a tool is inserted into a screw hole or a Pzig groove to rotate a nut, and the nut drives a screw rod to rotate synchronously, so that the screw rod drives a threaded sleeve and a traction block to move in a direction away from the arc-shaped block 1, and then the traction block drives the U-shaped pull block, the L-shaped block and the arc block 1 to be sealed and connected with the arc block 2, thereby improving the clamping force between the arc block 1 and the arc block 2, so as to facilitate the stability of the assembly between the arc block 1 and the arc block 2 and the crankshaft, and at the same time, improve the disassembly efficiency of the connecting rod structure and the crankshaft;

[0016] After the arc block 1 and the arc block 2 are assembled with the crankshaft, in order to maintain the assembly effect of the arc block 1 and the arc block 2 with the crankshaft, the pawl limits the ratchet wheel to maintain the stability of the connection between the arc block 1 and the arc block 2 and the crankshaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the arc block 1 and the arc block 2 of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the L-shaped block and the U-shaped pull block of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the threaded sleeve and the screw rod of the utility model.

[0022] In the figure: 1. Main connecting rod; 2. Arc block 1; 3. Arc block 2; 4. Arc shaft; 5. Limit block 1; 6. Limit block 2; 7. Pull block; 8. Threaded sleeve; 9. Screw; 10. Nut; 11. Pawl; 12. Ratchet; 13. U-shaped pull block; 14. L-shaped block; 15. Guide groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] Please refer to Figures 1-4 A crankshaft connecting rod structure includes a main connecting rod 1, an arc block 2 and an arc block 2 3. The left end of the main connecting rod 1 is fixed with the arc block 2 3, and the left end of the arc block 2 3 is slidably connected with the arc block 1 2. Both sides of the arc block 1 2 are fixed with limit blocks 1 5, and both sides of the arc block 2 3 are fixed with limit blocks 2 6. The inner rotation of the limit block 1 5 is connected to an L-shaped block 14, and the inner sliding connection of the limit block 2 6 is connected to a traction block 7. The left end of the traction block 7 is fixed with a U-shaped pull block 13, and the end of the L-shaped block 14 away from the limit block 1 5 is clamped with the U-shaped pull block 13;

[0028] During use, when the arc block 1 2 and the arc block 2 3 need to be connected and assembled with the crankshaft, the arc block 1 2 and the arc block 2 3 are spliced ​​to the crankshaft, and the L-shaped blocks 14 on both sides of the arc block 1 2 are clamped with the U-shaped pull block 13. Then, the traction block 7 moves away from the arc block 1 2, so that the traction block 7 drives the U-shaped pull block 13 to pull the L-shaped block 14, and then the traction force is stably maintained, so as to improve the disassembly efficiency of the connecting rod structure and the crankshaft, thereby improving the practicality and convenience of the connecting rod structure.

[0029] A buffer pad is fixed between the arc block 1 2 and the arc block 2 3, and an arc shaft 4 is fixed on the inner side of the arc block 1 2 and the arc block 2 3. The buffer pad improves the sealing between the arc block 1 2 and the arc block 2 3, and the arc shaft 4 effectively reduces the friction between the connecting rod structure and the crankshaft, thereby increasing the rotation efficiency;

[0030] The interior of the limit block 2 6 is provided with a traction mechanism for driving the traction block 7 to move. The traction mechanism includes a threaded sleeve 8, a screw rod 9, a nut 10 and an anti-reverse component. The interior of the limit block 2 6 is rotatably connected with the screw rod 9. The right end of the traction block 7 is fixed with a threaded sleeve 8. The left end of the screw rod 9 is threadedly connected to the threaded sleeve 8. The right end of the screw rod 9 is fixed with a nut 10. A screwing hole is opened on the outside of the nut 10, and a Pzig groove is opened on the right end of the nut 10.

[0031] Insert a tool into the screw hole or the Pozigzag groove to rotate the nut 10, and the nut 10 drives the screw rod 9 to rotate synchronously, so that the screw rod 9 drives the threaded sleeve 8 and the traction block 7 to move away from the arc block 1 2, and then the traction block 7 drives the U-shaped pull block 13, the L-shaped block 14 and the arc block 1 2 and the arc block 2 3 to be sealed and connected, thereby increasing the clamping force between the arc block 1 2 and the arc block 2 3;

[0032] The anti-reversal component includes a nut 10 and a pawl 11. A ratchet 12 is fixed to the outside of the screw rod 9. The right end of the limit block 2 6 is rotatably connected to the pawl 11. The bottom end of the pawl 11 is engaged with the ratchet 12. Further, when the clamping force generated by the arc block 1 2 and the arc block 2 3 reaches a certain index, the pawl 11 limits the ratchet 12 to prevent the tension generated by the traction block 7 and the screw rod 9 from causing the screw rod 9 to reverse. Therefore, the pawl 11 effectively limits the screw rod 9.

[0033] When the arc block 1 2 and the arc block 2 3 need to be disassembled for maintenance, the pawl 11 and the ratchet 12 are disengaged, and then the nut 10 and the screw 9 are rotated in the reverse direction to loosen the U-shaped pull block 13 and the L-shaped block 14, so that the arc block 1 2 and the arc block 2 3 are disengaged and disassembled;

[0034] A guide groove 15 is provided at the top and bottom of the inner portion of the limiting block 6 , and the inner side of the guide groove 15 is slidably connected to the traction block 7 .

[0035] The use process of the crankshaft connecting rod structure provided by the utility model is as follows:

[0036] Working principle: When arc block 1 2 and arc block 2 3 need to be connected and assembled with the crankshaft, arc block 1 2 and arc block 2 3 are spliced ​​on the crankshaft, and the L-shaped blocks 14 on both sides of arc block 1 2 are clamped with the U-shaped pull block 13, and then the tool is inserted into the screw hole or the M-shaped groove to rotate the nut 10, and the nut 10 drives the screw rod 9 to rotate synchronously, so that the screw rod 9 drives the threaded sleeve 8 and the traction block 7 to move away from arc block 1 2, and then the traction block 7 drives the U-shaped pull block 13, L-shaped block 14 and arc block 1 2 and arc block 2 3 to be sealed and connected, thereby increasing the clamping force between arc block 1 2 and arc block 2 3, and finally the pawl 11 limits the ratchet 12, effectively improving the stability of the screw rod 9, arc block 1 2 and arc block 2 3.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crankshaft connecting rod structure, characterized in that: The invention comprises a main connecting rod (1), an arc block 1 (2) and an arc block 2 (3), wherein the left end of the main connecting rod (1) is fixed with the arc block 2 (3), the left end of the arc block 2 (3) is slidably connected with the arc block 1 (2), both sides of the arc block 1 (2) are fixed with the limit block 1 (5), both sides of the arc block 2 (3) are fixed with the limit block 2 (6), the inner part of the limit block 1 (5) is rotatably connected with the L-shaped block (14), the inner part of the limit block 2 (6) is slidably connected with the traction block (7), the left end of the traction block (7) is fixed with the U-shaped pull block (13), and the end of the L-shaped block (14) away from the limit block 1 (5) is clamped with the U-shaped pull block (13).

2. The crankshaft connecting rod structure according to claim 1, characterized in that: A buffer pad is fixed between the arc block 1 (2) and the arc block 2 (3), and an arc-shaped rotating shaft (4) is fixed on the inner side of the arc block 1 (2) and the arc block 2 (3).

3. The crankshaft connecting rod structure according to claim 1, characterized in that: The interior of the second limit block (6) is provided with a traction mechanism for driving the traction block (7) to move, and the traction mechanism comprises a threaded sleeve (8), a screw rod (9), a nut (10) and an anti-reversal component. The interior of the second limit block (6) is rotatably connected to the screw rod (9), the right end of the traction block (7) is fixed with the threaded sleeve (8), the left end of the screw rod (9) is threadedly connected to the threaded sleeve (8), and the right end of the screw rod (9) is fixed with the nut (10).

4. The crankshaft connecting rod structure according to claim 3, characterized in that: A screwing hole is provided on the outside of the nut (10), and a Pzig groove is provided on the right end of the nut (10).

5. The crankshaft connecting rod structure according to claim 3, characterized in that: The anti-reversal assembly includes a nut (10) and a pawl (11), a ratchet (12) is fixed to the outside of the screw rod (9), the right end of the second limit block (6) is rotatably connected to the pawl (11), and the bottom end of the pawl (11) is engaged with the ratchet (12).

6. The crankshaft connecting rod structure according to claim 2, characterized in that: The top and bottom ends of the second limiting block (6) are both provided with guide grooves (15), and the inner side of the guide groove (15) is slidably connected to the traction block (7).

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