Compressor with speed reducing mechanism

Abstract

The invention relates to the technical field of compressors, in particular to a compressor with a speed reducing mechanism, which comprises a power shaft driven by a motor to rotate; the crankshaft penetrates through the pump body; the speed reducing mechanism is provided with an input end which is connected with the power shaft and synchronously rotates and an output end which is connected with the crankshaft and synchronously rotates, and the input end and the output end are in speed reducing transmission connection; the output end is supported by a first bearing located outside the speed reducing mechanism, and the first bearing is embedded in the end, close to the power shaft, of a pump shell of the pump body. The first bearing which is located outside the speed reducing mechanism and embedded in the end, close to the power shaft, of the pump shell of the pump body supports the output end of the speed reducing mechanism and the crankshaft which are connected at the same time, the problem that due to the fact that multiple bearings are over-constrained and limited, the assembly coaxiality is poor can be solved, and the assembly coaxiality is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to a compressor with a speed reduction mechanism. Background Art

[0002] Conventional rolling rotor compressors are driven by motors to achieve synchronous operation of the pump body. In order to make full use of the characteristics of high efficiency of the motor at high speed and high efficiency of the pump body at low speed, a reduction mechanism is added between the motor and the pump body. The input and output ends of the reduction mechanism are respectively connected to the power shaft on the motor side and the crankshaft on the pump body side. Through the speed change transmission of the reduction mechanism, the motor and the pump body can be operated asynchronously, thereby improving the efficiency of the compressor.

[0003] The input and output ends of conventional speed reducers are supported inside the reducer housing through ball bearings. Figure 1 As shown, the planetary reducer includes a sun gear 01, a sun gear bracket 02, a planetary gear 03, a planetary gear bracket 04, a reducer housing 05, and ball bearings 06 and 07. The sun gear bracket 02 is supported inside the reducer housing 05 by the ball bearing 06. The sun gear 01 is fixedly connected to the sun gear bracket 02 to keep synchronous rotation, and serves as the input end of the planetary reducer, which can be used to receive the driving torque of the power shaft on the motor side. One side of the planetary gear 03 is meshed with the sun gear 01, and the other side of the planetary gear 03 is meshed with the inner gear ring on the inner surface of the reducer housing 05. The planetary gear bracket 04 is supported inside the reducer housing 05 by the ball bearing 07. The planetary gear bracket 04 is fixedly connected to the planetary gear 03 to keep synchronous rotation, and serves as the output end of the planetary reducer, which can be used to output torque to the crankshaft on the pump body side and realize deceleration. Ball bearings 06 and 07 are respectively arranged at both ends of the planetary reducer to realize the positioning of the sun gear 01 and the planetary gear 03 in the reducer housing 05.

[0004] Since the input and output ends of the reduction mechanism are supported inside the reduction mechanism housing by ball bearings, after adding a reduction mechanism between the motor and the pump body of the compressor, the crankshaft on the pump body side will be limited by three bearings at the same time: the ball bearing at the output end of the reduction mechanism and the pump body bearings supporting the crankshaft at the upper and lower cylinder heads of the cylinder. The clearance of the ball bearings of the reduction mechanism is about 10μm-25μm, and the clearance of the pump body bearings is about 10μm-20μm. These bearings are at an approximate clearance level, and the bearing clearances are basically equivalent, resulting in extremely high requirements for coaxiality during the assembly process. In addition, because the motor, reduction mechanism, and pump body are fixedly assembled with the compressor housing respectively, in order to ensure the smooth operation of the crankshaft on the pump body side and the power shaft on the motor side, the above-mentioned multiple bearing limit structures put forward stringent requirements for assembly coaxiality, and poor assembly coaxiality is very likely to occur during the actual assembly process.

[0005] In addition, after the reduction mechanism is introduced into the compressor, the height of the entire machine increases by nearly one-fold compared to the original compressor due to the volume of the reduction mechanism itself and the corresponding installation space of the connecting frame, which is not conducive to the assembly of the compressor and the control of vibration, noise and lubrication during operation. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a compressor with a speed reduction mechanism, which can avoid poor assembly coaxiality caused by over-constraint of multiple bearings and improve assembly coaxiality.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a compressor with a speed reduction mechanism, comprising: a power shaft driven to rotate by a motor; a crankshaft passed through a pump body; a speed reduction mechanism having an input end connected to and rotating synchronously with the power shaft and an output end connected to and rotating synchronously with the crankshaft, the input end and the output end being connected by a speed reduction transmission; the output end is supported by a first bearing located outside the speed reduction mechanism, and the first bearing is embedded in an end portion of a pump casing of the pump body close to the power shaft.

[0009] Preferably, the crankshaft passes through the first bearing, and the output end of the reduction mechanism is fixedly connected to the crankshaft or is an integral part of an integral design.

[0010] Preferably, the first bearing is a roller bearing or a sliding bearing or a combination of a roller bearing and a sliding bearing.

[0011] Preferably, the first bearing is a single-row roller bearing or a multi-row roller bearing.

[0012] Preferably, it further comprises a connecting frame, the reduction mechanism is mounted and supported on the connecting frame, the input end of the reduction mechanism is supported by a second bearing located outside the reduction mechanism, and the second bearing is embedded in the connecting frame.

[0013] Preferably, the power shaft passes through the second bearing, and the input end of the speed reduction mechanism is fixedly connected to the power shaft or is an integral part of an integral design.

[0014] Preferably, the second bearing is a roller bearing or a sliding bearing or a combination of a roller bearing and a sliding bearing.

[0015] Preferably, the second bearing is a single-row roller bearing or a multi-row roller bearing.

[0016] Preferably, the connection frame is arranged on a side of the reduction mechanism close to the power shaft.

[0017] Preferably, the reduction mechanism includes a sun gear, a planetary gear, a planetary gear holder, a housing and an inner gear ring arranged on the inner surface of the housing, one end of the sun gear is the input end of the reduction mechanism, and the other end is meshed with one side of the planetary gear, the other side of the planetary gear is meshed with the inner gear ring, one end of the planetary gear holder is connected to the planetary gear, and the other end is the output end of the reduction mechanism.

[0018] Compared with the prior art, the present invention has significant improvements:

[0019] The compressor with a reduction mechanism of the present invention is provided with a reduction mechanism between the power shaft on the motor side and the crankshaft on the pump body side to realize asynchronous operation of the motor and the pump body, and the structure of the reduction mechanism is optimized, the output end of the reduction mechanism is connected to the crankshaft and supported by a first bearing located outside the reduction mechanism and embedded in one end of the pump body casing close to the power shaft. Compared with the conventional reduction mechanism, the supporting bearing at the output end is taken out and arranged outside the reduction mechanism, and combined with the supporting bearing of the crankshaft at one end of the pump body casing close to the power shaft, the two are combined into one, and the connected output end of the reduction mechanism and the crankshaft are simultaneously supported by the first bearing embedded in one end of the pump body casing close to the power shaft, which can avoid the problem of poor assembly coaxiality caused by over-constraint of multiple bearings, effectively improve the assembly coaxiality, and ensure that the power shaft on the motor side and the crankshaft on the pump body side can run smoothly after the reduction mechanism is added to the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of a conventional planetary reducer in the prior art.

[0021] Figure 2 It is a schematic cross-sectional structure diagram of a compressor with a speed reduction mechanism according to an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 The schematic diagram of the assembly of the speed reduction mechanism in the compressor with the speed reduction mechanism is shown.

[0023] Figure 4 yes Figure 2 A schematic diagram showing a compressor with a speed reduction mechanism in which a first bearing is embedded in an end portion of a pump casing of a pump body close to a power shaft.

[0024] Figure 5 yes Figure 2 A schematic diagram of a compressor with a speed reduction mechanism in which a second bearing is embedded in a connecting frame is shown.

[0025] The reference numerals are described as follows:

[0026] 01 Sun gear

[0027] 02 Sun gear bracket

[0028] 03 Planetary gear

[0029] 04 Planetary gear bracket

[0030] 05 Reducer housing

[0031] 06, 07 Ball bearings

[0032] 1 Power shaft

[0033] 2 Crankshaft

[0034] 3. Speed ​​reduction mechanism

[0035] 3a Input

[0036] 3b Output

[0037] 31 Sun gear

[0038] 32 Planetary gear

[0039] 33 Planetary gear bracket

[0040] 34 Shell

[0041] 4 Motor

[0042] 41 Stator

[0043] 42 Rotor

[0044] 5 Pump body

[0045] 51 Cylinder head

[0046] 6. First bearing

[0047] 7 Connection frame

[0048] 8 Second bearing

[0049] 9 Compressor housing DETAILED DESCRIPTION

[0050] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0054] like Figures 2 to 5 As shown, an embodiment of a compressor with a speed reduction mechanism provided by the present invention is shown.

[0055] See also Figure 2 and Figure 3 The compressor with a speed reduction mechanism in this embodiment includes a power shaft 1, a crankshaft 2 and a speed reduction mechanism 3. The power shaft 1 is driven to rotate by a motor 4. The motor 4 includes a stator 41 and a rotor 42 arranged inside the stator 41. The power shaft 1 is passed through the rotor 42 and is fixedly connected to the rotor 42, so as to rotate synchronously with the rotor 42. The crankshaft 2 is passed through the pump body 5. The pump body 5 is the compression structure of the compressor. The eccentric part of the crankshaft 2 carries the piston to perform eccentric operation inside the pump body 5 to compress the working medium entering the pump body 5. The speed reduction mechanism 3 has an input end 3a and an output end 3b. The input end 3a of the speed reduction mechanism 3 is connected to the power shaft 1 and rotates synchronously, and is used to receive the rotational torque from the power shaft 1. The output end 3b of the speed reduction mechanism 3 is connected to the crankshaft 2 and rotates synchronously, and is used to output torque to the crankshaft 2 to drive the crankshaft 2 to operate. The input end 3a and the output end 3b of the reduction mechanism 3 are connected by a reduction transmission, that is, the output speed of the output end 3b is less than the input speed of the input end 3a, so that the speed of the crankshaft 2 on the pump body 5 side is less than the speed of the power shaft 1 on the motor 4 side, thereby realizing asynchronous operation of the motor 4 and the pump body 5, and making full use of the high efficiency of the motor 4 at high speed and the high efficiency of the pump body 5 at low speed, thereby improving the overall efficiency of the compressor.

[0056] Combination Figure 4 The output end 3b of the speed reduction mechanism 3 is supported by a first bearing 6 located outside the speed reduction mechanism 3. The first bearing 6 is embedded in one end of the pump housing of the pump body 5 close to the power shaft 1. The end of the pump housing of the pump body 5 close to the power shaft 1 can be a cylinder head 51 at one end of the pump housing of the pump body 5 close to the motor 4. Therefore, the end of the crankshaft 2 connected to the output end 3b of the speed reduction mechanism 3 and the output end 3b of the speed reduction mechanism 3 can be supported by the first bearing 6.

[0057] The compressor with a reduction mechanism in this embodiment has optimized the structure of the reduction mechanism 3 between the power shaft 1 on the motor 4 side and the crankshaft 2 on the pump body 5 side, and connected the output end 3b of the reduction mechanism 3 to the crankshaft 2 and supported by a first bearing 6 located outside the reduction mechanism 3 and embedded in one end of the pump casing of the pump body 5 close to the power shaft 1. Compared with the conventional reduction mechanism, the supporting bearing at the output end is taken out and arranged outside the reduction mechanism, and combined with the supporting bearing of the crankshaft 2 at one end of the pump casing of the pump body 5 close to the power shaft 1, and the two are combined into one. The output end 3b of the reduction mechanism 3 and the crankshaft 2 connected are simultaneously supported by the first bearing 6 embedded in one end of the pump casing of the pump body 5 close to the power shaft 1, which can avoid the problem of poor assembly coaxiality caused by over-constraint of multiple bearings, effectively improve the assembly coaxiality, and ensure that the power shaft 1 on the motor 4 side and the crankshaft 2 on the pump body 5 side can operate smoothly after the reduction mechanism 3 is added to the compressor.

[0058] In this embodiment, preferably, the crankshaft 2 is passed through the first bearing 6, and the output end 3b of the reduction mechanism 3 is fixedly connected to the crankshaft 2 or is an integral part of an integral design, so that the output end 3b of the reduction mechanism 3 keeps synchronous rotation with the crankshaft 2, and the first bearing 6 embedded in the end of the pump casing of the pump body 5 close to the power shaft 1 can not only realize the radial support of the end of the crankshaft 2 connected to the output end 3b of the reduction mechanism 3, but also play a supporting role for the output end 3b of the reduction mechanism 3. When the output end 3b of the reduction mechanism 3 is fixedly connected to the crankshaft 2, the processing of both is more convenient. The method of fixedly connecting the output end 3b of the reduction mechanism 3 to the crankshaft 2 is preferably an interference fit connection method. When the output end 3b of the reduction mechanism 3 is an integral part of an integral design with the crankshaft 2, it is more conducive to assembly and ensures assembly coaxiality.

[0059] Preferably, in this embodiment, the outer ring of the first bearing 6 is fixedly connected to the inner hole in one end of the pump casing of the pump body 5 close to the power shaft 1 by interference fit, and the inner ring of the first bearing 6 is fixedly connected to the crankshaft 2 by interference fit, thereby realizing the rolling support function of the first bearing 6.

[0060] In this embodiment, preferably, the first bearing 6 is a roller bearing or a sliding bearing or a combination of a roller bearing and a sliding bearing. Preferably, the first bearing 6 is a single-row roller bearing or a multi-row roller bearing. Replacing the ball bearing at the output end of the conventional speed reduction mechanism with a roller bearing or a sliding bearing, especially when a roller bearing is used, can greatly improve the load-bearing capacity, and the bearing height can be greatly reduced, thereby effectively reducing the height of the compressor, improving the assembly of the compressor, and improving the vibration, noise and lubrication control during operation.

[0061] For further information, see Figure 2 and Figure 3 The compressor with a speed reduction mechanism in this embodiment further includes a connecting frame 7, on which the speed reduction mechanism 3 is mounted and supported, and the speed reduction mechanism 3 is fixed and positioned by the connecting frame 7. Figure 5 The input end 3a of the speed reduction mechanism 3 is supported by a second bearing 8 located outside the speed reduction mechanism 3, and the second bearing 8 is embedded in the connecting frame 7. Therefore, the end of the power shaft 1 connected to the input end 3a of the speed reduction mechanism 3 and the input end 3a of the speed reduction mechanism 3 can be supported by the second bearing 8. This is a further structural optimization of the reduction mechanism 3 between the power shaft 1 on the motor 4 side and the crankshaft 2 on the pump body 5 side of the compressor with a reduction mechanism in this embodiment. A connecting frame 7 is added to support and position the reduction mechanism 3, and the input end 3a of the reduction mechanism 3 is connected to the power shaft 1 and supported by a second bearing 8 located outside the reduction mechanism 3 and embedded in the connecting frame 7. Compared with the conventional reduction mechanism, the supporting bearing of the input end is taken out and set to the outside of the reduction mechanism and embedded in the connecting frame 7, which avoids the need to set the supporting bearing of the power shaft 1 in the connecting frame 7 while setting the supporting bearing of the input end inside the reduction mechanism. The two are directly combined into one, and the second bearing 8 embedded in the connecting frame 7 simultaneously supports the connected input end 3a of the reduction mechanism 3 and the power shaft 1, which can further avoid the problem of poor assembly coaxiality caused by over-constraint of multiple bearings, further effectively improve the assembly coaxiality, and ensure that the power shaft 1 on the motor 4 side and the crankshaft 2 on the pump body 5 side can operate smoothly after the reduction mechanism 3 is added to the compressor.

[0062] The compressor with a reduction mechanism in this embodiment also includes a compressor housing 9, which is hollow inside. The motor 4, the power shaft 1, the reduction mechanism 3, the crankshaft 2, the pump body 5 and the connecting frame 7 are all arranged inside the compressor housing 9. Among them, the stator 41 of the motor 4 is fixedly connected to the compressor housing 9 to achieve fixed support of the motor 4 in the compressor housing 9. At least part of the pump shell of the pump body 5 (such as the cylinder head 51) is fixedly connected to the compressor housing 9 to achieve fixed support of the pump body 5 in the compressor housing 9. Preferably, the connecting frame 7 is fixedly connected to the compressor housing 9, so as to achieve fixed support of the reduction mechanism 3 in the compressor housing 9, and the way in which the connecting frame 7 is fixedly connected to the compressor housing 9 is preferably welding. In a preferred embodiment, the connecting frame 7 is arranged on the side of the reduction mechanism 3 close to the power shaft 1, and the power shaft 1 passes through the connecting frame 7 and is connected to the input end 3a of the reduction mechanism 3.

[0063] In this embodiment, preferably, the power shaft 1 is passed through the second bearing 8, and the input end 3a of the reduction mechanism 3 is fixedly connected to the power shaft 1 or is an integral part of an integral design, so that the input end 3a of the reduction mechanism 3 and the power shaft 1 can maintain synchronous rotation, and the second bearing 8 embedded in the connecting frame 7 can not only realize radial support for the end of the power shaft 1 connected to the input end 3a of the reduction mechanism 3, but also play a supporting role for the input end 3a of the reduction mechanism 3. When the input end 3a of the reduction mechanism 3 is fixedly connected to the power shaft 1, the processing of both is more convenient. The method of fixedly connecting the input end 3a of the reduction mechanism 3 to the power shaft 1 is preferably welding or a flat key or spline connection. When the input end 3a of the reduction mechanism 3 and the power shaft 1 are an integral part of an integral design, it is more conducive to assembly and ensures assembly coaxiality.

[0064] Preferably, in this embodiment, the outer ring of the second bearing 8 is fixedly connected to the inner hole in the connecting frame 7 by interference fit, and the inner ring of the second bearing 8 is fixedly connected to the power shaft 1 by interference fit, thereby realizing the rolling support function of the second bearing 8.

[0065] In this embodiment, preferably, the second bearing 8 is a roller bearing or a sliding bearing or a combination of a roller bearing and a sliding bearing. Preferably, the second bearing 8 is a single-row roller bearing or a multi-row roller bearing. Replacing the ball bearing at the input end of the conventional speed reduction mechanism with a roller bearing or a sliding bearing, especially when a roller bearing is used, can greatly improve the load-bearing capacity, and the bearing height can be greatly reduced, thereby effectively reducing the height of the compressor, improving the assembly of the compressor, and improving the vibration, noise and lubrication control during operation.

[0066] In this embodiment, the structural form of the speed reduction mechanism 3 is not limited, that is, the speed reduction transmission connection structure between the input end 3a and the output end 3b of the speed reduction mechanism 3 is not limited, and any form that can achieve speed reduction transmission can be adopted, and the input end 3a and the output end 3b can be coaxial or non-coaxial. One of the preferred embodiments is that the speed reduction mechanism 3 includes a sun gear 31, a planetary gear 32, a planetary gear support 33, a shell 34, and an inner gear ring arranged on the inner surface of the shell 34. The shell 34 is fixedly connected to the connecting frame 7, and the inside of the shell 34 is hollow. The sun gear 31, the planetary gear 32 and the planetary gear support 33 are all arranged inside the shell 34. One end of the sun gear 31 is the input end 3a of the speed reduction mechanism 3, and is connected and fixed to the power shaft 1 that passes through the second bearing 8 embedded in the connecting frame 7 by welding or flat key or spline connection, or the sun gear 31 and the power shaft 1 are an integrally designed integral part, so that the sun gear 31 and the power shaft 1 keep synchronous rotation. The other end of the sun gear 31 meshes with one side of the planetary gear 32, and the other side of the planetary gear 32 meshes with the inner gear ring on the inner surface of the housing 34. One end of the planetary gear bracket 33 is connected and fixed to the planetary gear 32, so that the planetary gear bracket 33 and the planetary gear 32 keep rotating synchronously. The other end of the planetary gear bracket 33 is the output end 3b of the reduction mechanism 3, and is fixedly connected to the crankshaft 2 through an interference fit with the first bearing 6 embedded in one end (cylinder cover 51) of the pump housing of the pump body 5 close to the power shaft 1, or the planetary gear bracket 33 and the crankshaft 2 are integrally designed as a whole, so that the crankshaft 2 and the planetary gear bracket 33 keep rotating synchronously. When the rotor 42 of the motor 4 drives the power shaft 1 to rotate, the sun gear 31 rotates accordingly, and drives the planetary gear 32, the planetary gear bracket 33 and the crankshaft 2 to rotate. The sun gear 31 and the planetary gear 32 have gear teeth of different sizes, which can realize reduction transmission, so that the speed of the crankshaft 2 is less than the speed of the power shaft 1.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A compressor with a speed reduction mechanism, characterized in that: include: A power shaft (1) is driven to rotate by a motor (4); A crankshaft (2) is inserted into the pump body (5); A speed reduction mechanism (3) comprising an input end (3a) connected to the power shaft (1) and rotating synchronously, and an output end (3b) connected to the crankshaft (2) and rotating synchronously, wherein the input end (3a) and the output end (3b) are connected in a speed reduction transmission manner; The output end (3b) is supported by a first bearing (6) located outside the speed reduction mechanism (3), and the first bearing (6) is embedded in an end portion of a pump casing of the pump body (5) close to the power shaft (1).

2. The compressor with a speed reduction mechanism according to claim 1, characterized in that: The crankshaft (2) is inserted into the first bearing (6), and the output end (3b) of the speed reduction mechanism (3) is fixedly connected to the crankshaft (2) or is an integral part of an integral design.

3. The compressor with a speed reduction mechanism according to claim 1 or 2, characterized in that: The first bearing (6) is a roller bearing or a sliding bearing or a combination of a roller bearing and a sliding bearing.

4. The compressor with a speed reduction mechanism according to claim 1 or 2, characterized in that: The first bearing (6) is a single-row roller bearing or a multi-row roller bearing.

5. The compressor with a speed reduction mechanism according to claim 1, characterized in that: It also comprises a connecting frame (7), the reduction mechanism (3) is mounted on and supported by the connecting frame (7), the input end (3a) of the reduction mechanism (3) is supported by a second bearing (8) located outside the reduction mechanism (3), and the second bearing (8) is embedded in the connecting frame (7).

6. The compressor with a speed reduction mechanism according to claim 5, characterized in that: The power shaft (1) is inserted into the second bearing (8), and the input end (3a) of the speed reduction mechanism (3) is fixedly connected to the power shaft (1) or is an integral part of an integral design.

7. The compressor with a speed reduction mechanism according to claim 5 or 6, characterized in that: The second bearing (8) is a roller bearing or a sliding bearing or a combination of a roller bearing and a sliding bearing.

8. The compressor with a speed reduction mechanism according to claim 5 or 6, characterized in that: The second bearing (8) is a single-row roller bearing or a multi-row roller bearing.

9. The compressor with a speed reduction mechanism according to claim 5 or 6, characterized in that: The connecting frame (7) is arranged on a side of the speed reduction mechanism (3) close to the power shaft (1).

10. The compressor with a speed reduction mechanism according to claim 5, characterized in that: The reduction mechanism (3) comprises a sun gear (31), planetary gears (32), a planetary gear support (33), a housing (34), and an inner gear ring arranged on the inner surface of the housing (34); one end of the sun gear (31) is the input end (3a) of the reduction mechanism (3), and the other end is meshed with one side of the planetary gear (32); the other side of the planetary gear (32) is meshed with the inner gear ring; one end of the planetary gear support (33) is connected to the planetary gear (32), and the other end is the output end (3b) of the reduction mechanism (3).

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