Compressor crankshaft

Abstract

The utility model discloses a compressor crankshaft, which relates to the technical field of compressor crankshafts, and comprises a front end shaft, one end of the front end shaft is provided with a pair of cranks, a journal is fixedly arranged between the pair of cranks, one crank is fixedly connected with the front end shaft, the other crank is fixedly provided with a rear end shaft, the rear end shaft is sleeved with a connecting rod, and the connecting rod is connected with the rear end shaft. And a reinforcing mechanism is arranged on the rear end shaft. The limiting block is inserted into the circular groove along the communicating groove, the fixing block is pulled outwards, the fixing block drives the circular rod to move outwards along the circular hole until the circular rod is separated from the limiting groove, the rotating block is rotated, the rotating block drives the limiting block to rotate to the position perpendicular to the original position through the fixing rod, and the fixing block is released. And the round rod is inserted into the other limiting groove under the action of the spring to fix the position of the rotating block, so that the limiting block is ensured to limit the connecting rod through the round groove, the connecting rod is stably connected with the rear end shaft, and noise caused by shaking of the connecting rod is avoided.

Description

Technical Field

[0001] This utility model relates to the field of compressor crankshafts, and more particularly to a compressor crankshaft. Background Technology

[0002] The compressor crankshaft is one of the core components of a compressor. It is responsible for converting the rotary motion of the motor into the reciprocating motion of the piston, thereby completing the gas compression process. The structure and design of the compressor crankshaft have a crucial impact on the compressor's performance, efficiency, and service life.

[0003] In existing technologies, crankshafts will wear out over long-term use. Severe wear can lead to breakage of the connecting rods connected to the crankshaft. Even slight wear can cause wobbling at the connection between the crankshaft and the connecting rod. Thus, at high speeds, the wear on the crankshaft causes the connecting rods to impact the crankshaft during oscillation, resulting in noise. This increases the noise pollution of the device and makes it difficult to meet usage requirements. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where crankshaft wear causes the connecting rod to collide with the crankshaft during oscillation, resulting in noise. This invention provides a compressor crankshaft.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A compressor crankshaft includes a front end shaft, a pair of cranks at one end of the front end shaft, a journal fixed between the pair of cranks, one crank fixedly connected to the front end shaft, a rear end shaft fixedly mounted on the other crank, a connecting rod sleeved on the rear end shaft, the connecting rod being connected to the rear end shaft, and a reinforcing mechanism on the rear end shaft.

[0007] Preferably, the reinforcement mechanism includes a connecting component and a limiting mechanism.

[0008] Preferably, the connecting assembly includes a bearing, which is sleeved with a rear shaft. A fixing plate is fixedly provided on the bearing, and a rotating groove is provided on the fixing plate. A rotating block is provided in the rotating groove, and a fixing rod is fixedly provided on the rotating block. A limiting block is fixedly provided at the end of the fixing rod. A communicating groove is provided on the connecting rod, and a circular groove is provided inside the connecting rod. The limiting block is located inside the circular groove.

[0009] Preferably, the limiting mechanism includes a circular hole, which is formed on the rotating block. A circular rod is inserted into the circular hole, and a fixing block is fixed on the circular rod. A spring is fixed on the fixing block and is fixedly connected to the rotating block. A pair of limiting grooves are formed on the fixing plate, and the circular rod is inserted into one of the limiting grooves.

[0010] Preferably, a sleeve is fitted on the front end shaft, and the front end shaft is fixedly connected to the sleeve, and the sleeve has multiple oil storage grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the connecting rod is sleeved on the rear shaft, the limiting block is inserted into the circular groove along the connecting groove, the fixing block is pulled outward, the fixing block drives the circular rod to move outward along the circular hole until the circular rod is disengaged from the limiting groove, the rotating block is rotated, the rotating block drives the limiting block to rotate to the original perpendicular position through the fixing rod, the fixing block is released, and the circular rod is inserted into another limiting groove under the action of the spring, fixing the position of the rotating block, thereby ensuring that the limiting block limits the connecting rod through the circular groove. In this way, when the front shaft is worn after long-term use, the setting of the reinforcement mechanism makes the connecting rod and the rear shaft firmly connected, avoiding the connecting rod from shaking and generating noise, thus playing a noise reduction function for the entire device and reducing the noise pollution during the use of the device;

[0013] 2. In this utility model, after the crankshaft stops rotating, there are always several oil reservoirs facing upwards, regardless of their position, and they contain lubricating oil. No matter how long the crankshaft has not been used, lubricating oil will always flow out from the oil reservoirs immediately when it is used again, so as to lubricate the crankshaft in time and facilitate operation. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the positional relationship between the front shaft and the sleeve of this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection relationship between the rear shaft and the connecting rod of this utility model;

[0018] Figure 4 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the connecting rod of this utility model;

[0020] Figure 6 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0021] The numbers in the diagram are as follows: 1. Front shaft; 11. Crank; 12. Journal; 13. Rear shaft; 14. Connecting rod; 2. Bearing; 21. Fixing plate; 22. Rotating groove; 23. Rotating block; 24. Fixing rod; 25. Limiting block; 26. Connecting groove; 27. Circular groove; 3. Circular hole; 31. Circular rod; 32. Fixing block; 33. Spring; 34. Limiting groove; 4. Sleeve; 41. Oil reservoir. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example: This example provides a compressor crankshaft, see [link to example]. Figure 1-6 Specifically, it includes a front shaft 1, with a pair of cranks 11 at one end, a journal 12 fixed between the two cranks 11, one crank 11 fixedly connected to the front shaft 1, and a rear shaft 13 fixedly mounted on the other crank 11. A connecting rod 14 is sleeved on the rear shaft 13, and the connecting rod 14 is connected to the rear shaft 13. A reinforcing mechanism is provided on the rear shaft 13, including a connecting component and a limiting mechanism. The connecting component includes a bearing 2, which is sleeved on the rear shaft 13. A fixing plate 21 is fixedly mounted on the bearing 2, and a rotating groove 22 is formed in the fixing plate 21. A rotating groove 22 is provided in the rotating groove 22. The moving block 23 has a fixed rod 24 fixedly mounted on it, and a limiting block 25 fixedly mounted at the end of the fixed rod 24. The connecting rod 14 has a connecting groove 26 and a circular groove 27. The limiting block 25 is located inside the circular groove 27. The limiting mechanism includes a circular hole 3, which is opened on the rotating block 23. A circular rod 31 is inserted into the circular hole 3. A fixed block 32 is fixedly mounted on the circular rod 31. A spring 33 is fixedly mounted on the fixed block 32. The spring 33 is fixedly connected to the rotating block 23. A pair of limiting grooves 34 are opened on the fixed plate 21. The circular rod 31 is inserted into one of the limiting grooves 34.

[0025] The connecting rod 14 is fitted onto the rear shaft 13. The limiting block 25 is inserted into the circular groove 27 along the connecting groove 26. The fixing block 32 is pulled outward, and the fixing block 32 drives the circular rod 31 to move outward along the circular hole 3 until the circular rod 31 is disengaged from the limiting groove 34. The rotating block 23 is rotated, and the rotating block 23 drives the limiting block 25 to rotate to the original perpendicular position through the fixing rod 24. The fixing block 32 is released, and the circular rod 31 is inserted into another limiting groove 34 under the action of the spring 33, fixing the position of the rotating block 23. This ensures that the limiting block 25 limits the connecting rod 14 through the circular groove 27. In this way, after long-term use, the front shaft 1 is worn. The reinforcement mechanism ensures a stable connection between the connecting rod 14 and the rear shaft 13, preventing the connecting rod 14 from shaking and generating noise. This reduces noise pollution during the use of the device.

[0026] A sleeve 4 is fitted on the front end shaft 1, and the front end shaft 1 is fixedly connected to the sleeve 4. Multiple oil storage grooves 41 are opened on the sleeve 4.

[0027] After the crankshaft stops rotating, regardless of its position, there are always several oil reservoirs 41 facing upwards, containing lubricating oil. No matter how long the crankshaft has not been used, lubricating oil will always flow out from the oil reservoirs 41 immediately when it is put into operation again, thus lubricating the crankshaft in a timely manner and facilitating operation.

[0028] Specifically, the working principle and operation method of this utility model are as follows:

[0029] The connecting rod 14 is fitted onto the rear shaft 13. The limiting block 25 is inserted into the circular groove 27 along the connecting groove 26. The fixing block 32 is pulled outward, and the fixing block 32 drives the circular rod 31 to move outward along the circular hole 3 until the circular rod 31 is disengaged from the limiting groove 34. The rotating block 23 is rotated, and the rotating block 23 drives the limiting block 25 to rotate to the original perpendicular position through the fixing rod 24. The fixing block 32 is released, and the circular rod 31 is inserted into another limiting groove 34 under the action of the spring 33, fixing the position of the rotating block 23. This ensures that the limiting block 25 limits the connecting rod 14 through the circular groove 27. In this way, after long-term use, the front shaft 1 is worn. The reinforcement mechanism ensures a stable connection between the connecting rod 14 and the rear shaft 13, preventing the connecting rod 14 from shaking and generating noise. This reduces noise pollution during the use of the device.

[0030] After the crankshaft stops rotating, regardless of its position, several oil reservoirs 41 always face upwards and contain lubricating oil. No matter how long the crankshaft has been idle, lubricating oil will always flow from the oil reservoirs 41 immediately upon the next operation, ensuring timely lubrication of the crankshaft and facilitating operation.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A compressor crankshaft, comprising a front end shaft (1), characterized in that: The front end shaft (1) is provided with a pair of cranks (11) at one end, and a journal (12) is fixed between the pair of cranks (11). One crank (11) is fixedly connected to the front end shaft (1), and a rear end shaft (13) is fixedly provided on the other crank (11). A connecting rod (14) is sleeved on the rear end shaft (13), and the connecting rod (14) is connected to the rear end shaft (13). A reinforcing mechanism is provided on the rear end shaft (13). The reinforcement mechanism includes a connecting component and a limiting mechanism; The connecting assembly includes a bearing (2), which is sleeved with a rear shaft (13). A fixing plate (21) is fixedly provided on the bearing (2). A rotating groove (22) is provided on the fixing plate (21). A rotating block (23) is provided in the rotating groove (22). A fixing rod (24) is fixedly provided on the rotating block (23). A limiting block (25) is fixedly provided at the end of the fixing rod (24). A connecting groove (26) is provided on the connecting rod (14). A circular groove (27) is provided in the connecting rod (14). The limiting block (25) is located inside the circular groove (27). The limiting mechanism includes a circular hole (3), which is opened on the rotating block (23). A circular rod (31) is inserted into the circular hole (3). A fixing block (32) is fixed on the circular rod (31). A spring (33) is fixed on the fixing block (32). The spring (33) is fixedly connected to the rotating block (23). A pair of limiting grooves (34) are opened on the fixing plate (21). The circular rod (31) is inserted into one of the limiting grooves (34).

2. A compressor crankshaft according to claim 1, characterized in that: A sleeve (4) is fitted on the front end shaft (1), and the front end shaft (1) is fixedly connected to the sleeve (4). Multiple oil storage grooves (41) are opened on the sleeve (4).

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