Vibration reduction structure of piston compressor

Abstract

The utility model discloses a vibration reduction structure of a piston type compressor, and belongs to the technical field of compressors. The supporting device comprises a supporting block and a compression spring connected with the supporting block, the supporting block is arranged in the compressor, the compression spring is connected to the lower portion of a machine core in the compressor, the supporting block comprises a supporting body, and a tray is arranged on the periphery of one end of the supporting body in the circumferential direction. An anti-falling ring is arranged at the end part of the pressure spring and is mounted in the anti-falling groove; through the cooperation between the supporting main body and the anti-disengaging groove, the anti-disengaging ring on the pressure spring can be clamped with the anti-disengaging groove, so that the pressure spring can be well prevented from disengaging and moving, meanwhile, the pressure spring is easy and convenient to install and high in universality, the height of the supporting main body can be reduced, and therefore the height of the whole compressor is reduced; the glue reducing groove is formed in the supporting main body, and meanwhile, the tray is provided with the convex teeth, so that the material consumption of the supporting block can be effectively reduced, and the cost of the supporting block is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and in particular relates to a vibration reduction structure of a piston compressor. Background Art

[0002] A piston compressor is a common type of compressor that compresses gas through the reciprocating motion of a piston in a cylinder. The working principle of a piston compressor is to compress gas into high-pressure gas through the reciprocating motion of the piston in the cylinder. When the piston moves downward, the gas in the cylinder is sucked in, and then the piston moves upward to compress the gas. The compressed gas is discharged through the exhaust valve, thereby generating high-pressure gas. During the use of a piston compressor, a shock-absorbing structure is usually required to support and damp the movement of the piston compressor.

[0003] The existing piston compressor movement shock absorption structure is mostly a compression spring plus support block structure (see the attached manual Figure 2 As shown in the figure, the lower end of the compression spring has an interference fit with the support block, and the upper end has a clearance fit with the screw to achieve the function of supporting the machine to reduce vibration. The height of the interference fit between the lower end of the compression spring and the support block needs to be greater than 2 compression spring circles. Due to the interference fit, it is not easy to install in place or has poor anti-slip performance during installation. It is easy to tilt after multiple left and right swings, affecting the stability of the support and affecting vibration noise. Utility Model Content

[0004] The utility model aims to provide a vibration reduction structure for a piston compressor in view of the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a support block and a compression spring connected to the support block, the support block is arranged in the compressor, the compression spring is connected to the bottom of the movement in the compressor, the support block includes a support body, a tray is circumferentially provided on the outer periphery of one end of the support body, and a plurality of rubber reduction grooves are axially provided on the outer periphery of the support body, the rubber reduction grooves extend from the tray to the other end of the support body, and limiting ribs are formed between adjacent rubber reduction grooves, and an anti-slip groove is provided on the end of the limiting rib close to the tray; an anti-slip ring is provided on the end of the compression spring, and the anti-slip ring is installed in the anti-slip groove.

[0006] By adopting the above technical solution, the anti-slip groove and the anti-slip ring cooperate with each other, so as to prevent the compression spring and the support block from falling off and moving, thereby avoiding the phenomenon that the installation is difficult to be in place or the anti-slip performance is poor due to interference fit, and the tilting is easy to occur due to multiple left and right swings.

[0007] Optionally, a connection hole is opened at the center position of the support body, and the connection hole is connected to a connection piece in the compressor.

[0008] By adopting the above technical solution and setting the connection hole, the installation between the support block and the compressor is convenient.

[0009] Optionally, the tray is composed of circumferentially distributed protruding teeth, the number of the protruding teeth is the same as the number of the glue-reducing grooves, and the positions of the protruding teeth correspond to the positions of the glue-reducing grooves.

[0010] By adopting the above technical solution, the tray is configured to be in a convex tooth shape, which can reduce the material usage of the support block and reduce costs.

[0011] Optionally, the side cross-sectional view of the protruding tooth is trapezoidal in shape, and the inclined surface of the protruding tooth faces downward.

[0012] By adopting the above technical solution, the trapezoidal convex teeth can enhance the supporting strength of the supporting block.

[0013] Optionally, the number of the glue-reducing grooves is 6-10, and the glue-reducing grooves are distributed in a circular array with the center point of the supporting body as the base point.

[0014] By adopting the above technical solution and setting the glue-reducing groove, the material usage of the support block can be reduced, thereby reducing costs.

[0015] Optionally, the longitudinal distribution of the limiting rib is such that the length of the limiting rib is the same as the length of the supporting body, and the portion between the upper end of the limiting rib and the anti-slip groove is in an arc shape, and the arc gradually increases from top to bottom.

[0016] By adopting the above technical solution, the space between the limiting rib plate and the anti-slip groove is in an arc shape, which makes the installation of the anti-slip ring simple and convenient.

[0017] Optionally, the maximum diameter of the limiting rib is smaller than the maximum diameter of the convex teeth, and the limiting rib is located between two adjacent convex teeth.

[0018] By adopting the above technical solution, the limiting rib plate and the convex teeth cooperate with each other, so that the compression spring is not easy to fall off.

[0019] Optionally, the diameter of the compression spring is greater than the diameter of the anti-slip ring, and the number of the anti-slip rings is 1-2.

[0020] By adopting the above technical solution, the diameter of the anti-slip ring is set to be smaller than the diameter of the compression spring, so that the anti-slip ring and the anti-slip groove can be tightly installed to avoid falling off.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. By cooperating between the support body and the anti-slip groove, the anti-slip ring on the compression spring can be engaged with the anti-slip groove, thereby effectively preventing the compression spring from falling off and moving. At the same time, the compression spring is simple and convenient to install, and has strong versatility. The support body can be lowered in height, thereby reducing the height of the entire compressor; 2. By providing a rubber reduction groove on the support body and setting its tray into multiple convex teeth, the material usage of the support block can be effectively reduced, and the cost of the support block can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of the compressor of the utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure between the compression spring and the support block of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the compression spring and the improved support block of the utility model;

[0026] Figure 4 This is a schematic diagram of the front view structure of the improved support block of the utility model;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the improved support block of the utility model;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the improved compression spring of the utility model.

[0029] In the figure: 1. support block; 2. compression spring; 3. compressor; 4. movement; 5. support body; 501, connection hole; 6. tray; 7. rubber reduction groove; 8. limiting rib plate; 9. anti-slip groove; 10. anti-slip ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] like Figure 1 —6, the specific scheme of the embodiment is as follows: it includes a support block 1, the number of the support blocks 1 is 3-4, the support block 1 is made of rubber, and a compression spring 2 connected to the support block 1, the compression spring 2 is spiral-shaped, and the compression spring 2 can store elastic energy by compression or stretching, the support block 1 is arranged in the compressor 3, the compression spring 2 is connected to the bottom of the movement 4 in the compressor 3, the upper end of the compression spring 2 is connected to the movement 4 through a screw nut, the compression spring 2 is sleeved on the outer side of the screw nut, and the screw nut is fixedly connected to the movement 4.

[0033] The support block 1 includes a support body 5, a connection hole 501 is provided at the center of the support body 5, and the connection hole 501 is connected to the connection piece in the compressor 3. The setting of the connection hole 501 makes it easy to disassemble and assemble the support block 1. A tray 6 is provided on the outer periphery of one end of the support body 5. The tray 6 is composed of circumferentially distributed protruding teeth. The side cross-sectional view of the protruding teeth is trapezoidal, and the inclined surface of the protruding teeth faces downward. There are several protruding teeth, and the upper end surfaces of the protruding teeth are parallel. The tray 6 is integrally formed with the support body 5. The setting of the protruding teeth can reduce the material usage of the support block 1 and reduce the cost.

[0034] The outer periphery of the support body 5 is axially provided with a plurality of glue reduction grooves 7, and the glue reduction grooves 7 extend from the tray 6 to the other end of the support body 5. The number of the convex teeth is the same as the number of the glue reduction grooves 7, and the positions of the convex teeth correspond to the positions of the glue reduction grooves 7. The number of the glue reduction grooves 7 is 6-10, and the glue reduction grooves 7 are distributed in a circular array with the center point of the support body 5 as the base point. The width of the glue reduction grooves 7 is the same as the width of the convex teeth. The setting of the glue reduction grooves 7 can reduce the material usage of the support block 1 and reduce costs.

[0035] A limiting rib plate 8 is formed between adjacent said glue reduction grooves 7, the maximum diameter of said limiting rib plate 8 is smaller than the maximum diameter of the convex teeth, said limiting rib plate 8 is located between two adjacent convex teeth, the longitudinal distribution of said limiting rib plate 8, the length of said limiting rib plate 8 is the same as the length of the supporting body 5, and an anti-slip groove 9 is provided at one end of said limiting rib plate 8 close to said tray 6, the length of said anti-slip groove 9 is greater than the height of the convex teeth, and a gap is formed between the upper end of said anti-slip groove 9 and the upper end surface of the convex teeth, and an arc shape is formed between the upper end of said limiting rib plate 8 and the anti-slip groove 9, and the arc gradually expands from top to bottom, and the arc setting makes the compression spring 2 simple and convenient to install, and has strong versatility, and said supporting body 5, tray 6, glue reduction groove 7, limiting rib plate 8 and anti-slip groove 9 are integrally formed;

[0036] An anti-slip ring 10 is provided at the end of the compression spring 2, and the anti-slip ring 10 is installed in the anti-slip groove 9. The diameter of the compression spring 2 is larger than the diameter of the anti-slip ring 10. The number of the anti-slip rings 10 is 1-2. The cooperation between the anti-slip groove 9 and the anti-slip ring 10 can well prevent the compression spring 2 from falling off and moving.

[0037] The working principle of the above embodiment is:

[0038] Through the multi-cavity mold that is set up, the support block 1 is formed in one piece. After forming, the anti-slip ring 10 at the lower end of the compression spring 2 is inserted downward from the upper end of the support block 1. With the cooperation of the limiting rib plate 8 and the convex tooth, the anti-slip ring 10 is inserted into the anti-slip groove 9. After insertion, the support block 1 is connected to the connecting piece in the compressor 3 through the connecting hole 501 on the support body 5. After insertion, the other end of the compression spring 2 is connected to the outer wall of the screw nut, and the screw nut is installed with the movement 4.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration reduction structure for a piston compressor, comprising a support block (1) and a compression spring (2) connected to the support block (1), wherein the support block (1) is arranged in a compressor (3), and the compression spring (2) is connected to the bottom of a movement (4) in the compressor (3), wherein: The support block (1) comprises a support body (5), one end of which is provided with a tray (6) in the circumferential direction, and the outer periphery of the support body (5) is provided with a plurality of glue reduction grooves (7) in the axial direction, the glue reduction grooves (7) extending from the tray (6) to the other end of the support body (5), and a limiting rib plate (8) is formed between adjacent ones of the glue reduction grooves (7), and an anti-slip groove (9) is provided at one end of the limiting rib plate (8) close to the tray (6); an anti-slip ring (10) is provided at the end of the compression spring (2), and the anti-slip ring (10) is installed in the anti-slip groove (9).

2. The vibration reduction structure of a piston compressor according to claim 1, characterized in that: A connection hole (501) is provided at the center of the support body (5), and the connection hole (501) is connected to a connection piece in the compressor (3).

3. The vibration reduction structure of a piston compressor according to claim 1, characterized in that: The tray (6) is composed of circumferentially distributed protruding teeth, the number of the protruding teeth is the same as the number of the glue-reducing grooves (7), and the positions of the protruding teeth correspond to the positions of the glue-reducing grooves (7).

4. The vibration reduction structure of a piston compressor according to claim 3, characterized in that: The side cross-sectional view of the protruding tooth is trapezoidal in shape, and the inclined surface of the protruding tooth faces downward.

5. The vibration reduction structure of a piston compressor according to claim 1, characterized in that: The number of the glue reduction grooves (7) is 6-10, and the glue reduction grooves (7) are distributed in a circular array with the center point of the support body (5) as the base point.

6. The vibration reduction structure of a piston compressor according to claim 1, characterized in that: The longitudinal distribution of the limiting rib plate (8) is such that the length of the limiting rib plate (8) is the same as the length of the supporting body (5), and the area between the upper end of the limiting rib plate (8) and the anti-slip groove (9) is in an arc shape, and the arc gradually increases from top to bottom.

7. The vibration reduction structure of a piston compressor according to claim 1, characterized in that: The maximum diameter of the limiting rib plate (8) is smaller than the maximum diameter of the convex teeth, and the limiting rib plate (8) is located between two adjacent convex teeth.

8. The vibration reduction structure of a piston compressor according to claim 1, characterized in that: The diameter of the compression spring (2) is greater than the diameter of the anti-slip ring (10), and the number of the anti-slip rings (10) is 1-2.

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