Compressor and compressor crankshaft supporting structure

Abstract

The utility model discloses a compressor and a compressor crankshaft supporting structure, and relates to the technical field of compressors. The compressor comprises a compressor box body, the top of the compressor box body is fixedly connected with a cover plate through bolts, the front face of the compressor box body is fixedly connected with a plurality of compression cylinders, an upper arc-shaped cover is arranged in the compressor box body, and a lower arc-shaped seat is arranged below the upper arc-shaped cover. A crankshaft is arranged at the corresponding center of the upper arc-shaped cover and the lower arc-shaped base, and a plurality of push rods are rotationally connected to the outer surface of the crankshaft. According to the utility model, the supporting assembly is arranged, specifically, after the upper arc-shaped cover is installed, the upper clamping seat is in contact with the surface of the crankshaft through the rolling shaft in the upper clamping seat, and the upper clamping seat is matched with the lower clamping seat under the elastic action of the spring to support the crankshaft, so that the crankshaft is prevented from drooping, and due to the arranged rolling shaft, not only is the rotation of the crankshaft not affected, but also the service life of the crankshaft is prolonged. And the crankshaft can rotate more smoothly, so that the service life of the crankshaft is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to a compressor and a compressor crankshaft support structure. Background Technique

[0002] Compressors can be divided into two types according to the working principle: volumetric type and speed type. The volumetric compressor compresses the gas by changing the volume of the working chamber, while the speed compressor accelerates the gas by using a rotating blade or impeller, thereby converting kinetic energy into pressure energy. Common volumetric compressors include reciprocating (such as piston type) and rotary (such as screw type, scroll type), and speed compressors include centrifugal type, axial flow type, etc.

[0003] The existing piston compressors usually need to use a crankshaft to drive the piston to move. The crankshaft is usually relatively long. After being installed inside the compressor, the part at the center of the crankshaft will sag under the action of gravity, resulting in unstable rotation of the crankshaft during use and easy jitter. This not only affects the normal use of the compressor, but also causes damage to the crankshaft after a long time, resulting in economic losses. Therefore, we propose a compressor and a compressor crankshaft support structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a compressor and a compressor crankshaft support structure. By setting a support component, specifically, after the upper arc-shaped cover is installed, the upper clamp seat will contact the surface of the crankshaft through the internal roller, and the upper clamp seat will cooperate with the lower clamp seat under the elastic action of the spring to support the crankshaft, thereby avoiding the sag of the crankshaft. Due to the setting of the roller, it not only does not affect the rotation of the crankshaft, but also enables the crankshaft to rotate more smoothly, thereby improving the service life of the crankshaft, and solving the problem that the part at the center of the crankshaft in the existing compressor sags under the action of gravity, resulting in unstable rotation of the crankshaft during use and easy jitter.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model relates to a compressor and a compressor crankshaft support structure, including a compressor box body. A cover plate is fixedly connected to the top of the compressor box body through bolts. A plurality of compression cylinders are fixedly connected to the front of the compressor box body. An upper arc-shaped cover is arranged inside the compressor box body. A lower arc-shaped seat is arranged below the upper arc-shaped cover. A crankshaft is arranged at the corresponding centers of the upper arc-shaped cover and the lower arc-shaped seat. A plurality of push rods are rotatably connected to the outer surface of the crankshaft. A piston is slidably connected inside each of the plurality of compression cylinders. One side of the push rod away from the crankshaft is rotatably connected to the back of the piston through a pin shaft. The back of the compression cylinder penetrates through the compressor box body and extends to the inside. The back of the compression cylinder is fixedly connected to the top of the lower arc-shaped seat. A plurality of groups of support components are arranged inside the upper arc-shaped cover.

[0007] Furthermore, the parts included in each of the plurality of groups of support components are the same. The support component includes an upper clamping seat. A fixing rod is fixedly connected to the top of the inner wall of the upper arc-shaped cover. A lower clamping seat is arranged below the crankshaft. By arranging the support component, specifically, after the upper arc-shaped cover is installed, the upper clamping seat will contact the surface of the crankshaft through the roller inside. The upper clamping seat cooperates with the lower clamping seat under the elastic action of the spring to support the crankshaft, thereby avoiding the situation of the crankshaft sagging. Due to the arranged roller, it not only does not affect the rotation of the crankshaft, but also enables the crankshaft to rotate more smoothly when rotating, thereby improving the service life of the crankshaft.

[0008] Furthermore, a limiting groove is formed inside the fixing rod. A telescopic rod is slidably connected to the inner wall of the limiting groove. The bottom of the telescopic rod is fixedly connected to the top of the upper clamping seat. A spring is fixedly connected to the top of the telescopic rod. The top of the spring is fixedly connected to the top of the inner wall of the limiting groove. Limit blocks are fixedly connected to the front and back of the fixing rod. Limit rods are slidably connected inside the two limit blocks. The bottoms of the two limit rods are fixedly connected to the top of the upper clamping seat. When the fixing rod moves, it will drive the limit blocks to slide on the limit rods, which is used to play a limiting role to avoid the situation of the upper clamping seat shifting.

[0009] Furthermore, a support frame is fixedly connected to the bottom of the lower clamping seat. The bottom of the support frame is fixedly connected to the bottom of the inner wall of the lower arc-shaped seat. A plurality of rollers are rotatably connected inside the upper clamping seat and the lower clamping seat. The outer surface of the roller contacts the outer surface of the crankshaft. The support frame is used to support the lower clamping seat. The crankshaft is limited and supported by the lower clamping seat, thereby reducing the situation of jitter.

[0010] Further, two first reinforcing plates are fixedly connected to the top of the upper arc-shaped cover. A plurality of positioning frames are fixedly connected to the front and back inner walls of the compressor box body. The first reinforcing plates are inserted into the positioning frames. The front of the upper arc-shaped cover is inserted into the top of the compression cylinder. The upper arc-shaped cover is fixedly connected to the lower arc-shaped seat by bolts. Two second reinforcing plates are fixedly connected to the bottom of the lower arc-shaped seat. The outer sides of the second reinforcing plates are fixedly connected to the inner wall of the compressor box body. By providing the positioning frames and the first reinforcing plates, specifically, when the upper arc-shaped cover is placed into the compressor box body, the first reinforcing plates will be inserted into the positioning frames, which is used to position and stabilize the upper arc-shaped cover, and can align the through holes on the upper arc-shaped cover with the threaded holes on the lower arc-shaped seat smoothly, facilitating subsequent installation, improving work efficiency. At the same time, after the cover plate is installed, the bottom will contact the first reinforcing plate and press the first reinforcing plate, further improving stability.

[0011] The utility model has the following beneficial effects:

[0012] By providing the supporting assembly, specifically, after the upper arc-shaped cover is installed, the upper clamping seat will contact the surface of the crankshaft through the rollers inside. The upper clamping seat and the lower clamping seat cooperate under the elastic action of the spring to support the crankshaft, thus avoiding the situation of the crankshaft sagging. Due to the provided rollers, it will not only not affect the rotation of the crankshaft, but also make the rotation of the crankshaft smoother, thereby improving the service life of the crankshaft.

[0013] By providing the positioning frames and the first reinforcing plates, specifically, when the upper arc-shaped cover is placed into the compressor box body, the first reinforcing plates will be inserted into the positioning frames, which is used to position and stabilize the upper arc-shaped cover, and can align the through holes on the upper arc-shaped cover with the threaded holes on the lower arc-shaped seat smoothly, facilitating subsequent installation, improving work efficiency. At the same time, after the cover plate is installed, the bottom will contact the first reinforcing plate and press the first reinforcing plate, further improving stability.

[0014] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the right-side sectional structure of the compressor box body of the present utility model;

[0018] Figure 3 Schematic diagram of the internal structure of the lower clamp seat of the present utility model;

[0019] Figure 4 Schematic diagram of the right-side sectional structure of the fixed rod of the present utility model;

[0020] Figure 5 Schematic diagram of the internal top view structure of the compressor box body of the present utility model;

[0021] Figure 6 Schematic diagram of the overall structure of the upper arc-shaped cover of the present utility model.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Compressor box body; 11. Cover plate; 12. Compression cylinder; 13. Upper arc-shaped cover; 131. Lower arc-shaped seat; 132. Crankshaft; 133. Push rod; 134. Piston; 14. Support assembly; 141. Upper clamp seat; 142. Fixed rod; 421. Telescopic rod; 422. Spring; 423. Limit block; 424. Limit rod; 143. Lower clamp seat; 431. Support frame; 432. Roller; 15. Positioning frame; 16. Reinforcement plate one; 17. Reinforcement plate two. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6 As shown, the present utility model is a compressor and a compressor crankshaft support structure, including a compressor box body 1. The top of the compressor box body 1 is fixedly connected with a cover plate 11 through bolts. A plurality of compression cylinders 12 are fixedly connected to the front of the compressor box body 1. An upper arc-shaped cover 13 is arranged inside the compressor box body 1. A lower arc-shaped seat 131 is arranged below the upper arc-shaped cover 13. A crankshaft 132 is arranged at the corresponding center of the upper arc-shaped cover 13 and the lower arc-shaped seat 131. A plurality of push rods 133 are rotatably connected to the outer surface of the crankshaft 132. A piston 134 is slidably connected to the inside of each of the plurality of compression cylinders 12. One side of the push rod 133 away from the crankshaft 132 is rotatably connected to the back of the piston 134 through a pin shaft. The back of the compression cylinder 12 penetrates through the compressor box body 1 and extends to the inside. The back of the compression cylinder 12 is fixedly connected to the top of the lower arc-shaped seat 131. A plurality of groups of support assemblies 14 are arranged inside the upper arc-shaped cover 13.

[0026] The parts contained inside several groups of support components 14 are the same. The support component 14 includes an upper clamp seat 141. A fixing rod 142 is fixedly connected to the top of the inner wall of the upper arc-shaped cover 13. A lower clamp seat 143 is arranged below the crankshaft 132. By setting the support component 14, specifically, after the upper arc-shaped cover 13 is installed, the upper clamp seat 141 will contact the surface of the crankshaft 132 through the roller 432 inside. The upper clamp seat 141 cooperates with the lower clamp seat 143 under the elastic action of the spring 422 to support the crankshaft 132, thereby preventing the crankshaft 132 from sagging. Due to the arranged roller 432, it not only does not affect the rotation of the crankshaft 132, but also enables the crankshaft 132 to rotate more smoothly, thus improving the service life of the crankshaft 132.

[0027] A limiting groove is formed inside the fixing rod 142. A telescopic rod 421 is slidably connected to the inner wall of the limiting groove. The bottom of the telescopic rod 421 is fixedly connected to the top of the upper clamp seat 141. The top of the telescopic rod 421 is fixedly connected to a spring 422. The top of the spring 422 is fixedly connected to the top of the inner wall of the limiting groove. Limit blocks 423 are fixedly connected to the front and back of the fixing rod 142. Limiting rods 424 are slidably connected inside the two limit blocks 423. The bottoms of the two limiting rods 424 are fixedly connected to the top of the upper clamp seat 141. When the fixing rod 142 moves, it will drive the limit block 423 to slide on the limiting rod 424, which is used to play a limiting role and prevent the upper clamp seat 141 from shifting.

[0028] The bottom of the lower clamp seat 143 is fixedly connected to a support frame 431. The bottom of the support frame 431 is fixedly connected to the bottom of the inner wall of the lower arc-shaped seat 131. A number of rollers 432 are rotatably connected inside the upper clamp seat 141 and the lower clamp seat 143. The outer surface of the roller 432 contacts the outer surface of the crankshaft 132. The support frame 431 is used to support the lower clamp seat 143, and the crankshaft 132 is limited and supported by the lower clamp seat 143, thereby reducing the occurrence of jitter.

[0029] Two first reinforcing plates 16 are fixedly connected to the top of the upper arc-shaped cover 13. A number of positioning frames 15 are fixedly connected to the front and back of the inner wall of the compressor box body 1. The first reinforcing plate 16 is inserted into the positioning frame 15. The front of the upper arc-shaped cover 13 is inserted into the top of the compression cylinder 12. The upper arc-shaped cover 13 is fixedly connected to the lower arc-shaped seat 131 by bolts. Two second reinforcing plates 17 are fixedly connected to the bottom of the lower arc-shaped seat 131. The outer sides of the second reinforcing plates 17 are fixedly connected to the inner wall of the compressor box body 1. By setting the positioning frame 15 and the first reinforcing plate 16, specifically, when the upper arc-shaped cover 13 is placed into the compressor box body 1, the first reinforcing plate 16 will be inserted into the positioning frame 15, which is used to position and stabilize the upper arc-shaped cover 13, and can make the through holes on the upper arc-shaped cover 13 align with the threaded holes on the lower arc-shaped seat 131 smoothly, facilitating subsequent installation and improving work efficiency. At the same time, after the cover plate 11 is installed, the bottom will contact the first reinforcing plate 16 and press the first reinforcing plate 16, further improving the stability.

[0030] A specific application of this embodiment is as follows:

[0031] During use, place the crankshaft 132 in the lower arc-shaped seat 131. Then, the surface of the crankshaft 132 contacts the roller 432 on the lower clamping seat 143. Next, install the push rod 133 and the piston 134 respectively. Subsequently, place the upper arc-shaped cover 13 into the compressor housing 1. Then, the first reinforcing plate 16 will be inserted into the positioning frame 15, which plays a role in positioning and stabilizing the upper arc-shaped cover 13, and can align the through hole on the upper arc-shaped cover 13 with the threaded hole on the lower arc-shaped seat 131 smoothly, facilitating subsequent installation and improving work efficiency. At the same time, the upper clamping seat 141 will contact the surface of the crankshaft 132 through the internal roller 432. The downward pressure of the upper arc-shaped cover 13 will drive the fixed rod 142 to slide on the telescopic rod 421, and the spring 422 will be compressed. At the same time, the fixed rod 142 will drive the limit block 423 to slide on the limit rod 424, which is used to play a limiting role to prevent the upper clamping seat 141 from shifting. The upper clamping seat 141 cooperates with the lower clamping seat 143 under the elastic action of the spring 422 to support the crankshaft 132, thereby preventing the crankshaft 132 from sagging. Due to the arranged rollers 432, it not only does not affect the rotation of the crankshaft 132, but also enables the crankshaft 132 to rotate more smoothly, thereby increasing the service life of the crankshaft 132. Subsequently, fix the upper arc-shaped cover 13 and the lower arc-shaped seat 131 with bolts. After fixation, install the cover plate 11 on the top of the compressor housing 1 and fix it with multiple bolts to complete the installation. At the same time, the bottom of the cover plate 11 will contact the first reinforcing plate 16 and press the first reinforcing plate 16, further improving the stability of the upper arc-shaped cover 13 after installation.

[0032] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not elaborate on all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. The present specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A compressor, comprising a compressor housing (1), wherein a cover plate (11) is fixedly connected to the top of the compressor housing (1) by bolts, and a plurality of compression cylinders (12) are fixedly connected to the front of the compressor housing (1), characterized in that: An upper arc-shaped cover (13) is arranged inside the compressor housing (1), a lower arc-shaped seat (131) is arranged below the upper arc-shaped cover (13), a crankshaft (132) is arranged at the corresponding centers of the upper arc-shaped cover (13) and the lower arc-shaped seat (131), a plurality of push rods (133) are rotatably connected to the outer surface of the crankshaft (132), a plurality of compression cylinders (12) are slidably connected to the inside with pistons (134), a side of the push rods (133) away from the crankshaft (132) is rotatably connected to the back of the piston (134) via a pin, the back of the compression cylinder (12) passes through the compressor housing (1) and extends to the inside, the back of the compression cylinder (12) is fixedly connected to the top of the lower arc-shaped seat (131), and a plurality of support components (14) are arranged inside the upper arc-shaped cover (13).

2. A compressor crankshaft support structure, using a compressor as claimed in claim 1, characterized in that: The parts contained in the plurality of groups of the support assemblies (14) are the same. The support assemblies (14) include an upper clamping seat (141), a fixing rod (142) is fixedly connected to the top of the inner wall of the upper arc-shaped cover (13), and a lower clamping seat (143) is arranged below the crankshaft (132).

3. A compressor crankshaft support structure according to claim 2, characterized in that: A limiting groove is provided inside the fixing rod (142), a telescopic rod (421) is slidably connected to the inner wall of the limiting groove, the bottom of the telescopic rod (421) is fixedly connected to the top of the upper clamping seat (141), the top of the telescopic rod (421) is fixedly connected to a spring (422), and the top of the spring (422) is fixedly connected to the top of the inner wall of the limiting groove.

4. A compressor crankshaft support structure according to claim 3, characterized in that: The front and back sides of the fixed rod (142) are fixedly connected to the limiting block (423), the insides of the two limiting blocks (423) are slidably connected to the limiting rod (424), and the bottoms of the two limiting rods (424) are fixedly connected to the top of the upper clamping seat (141).

5. A compressor crankshaft support structure according to claim 4, characterized in that: The bottom of the lower clamping seat (143) is fixedly connected to a support frame (431), the bottom of the support frame (431) is fixedly connected to the bottom of the inner wall of the lower arc-shaped seat (131), and the interior of the upper clamping seat (141) and the interior of the lower clamping seat (143) are both rotatably connected to a plurality of rollers (432), and the outer surfaces of the rollers (432) are in contact with the outer surface of the crankshaft (132).

6. A compressor crankshaft support structure according to claim 4, characterized in that: The top of the upper arc-shaped cover (13) is fixedly connected to two reinforcing plates (16); the front and back sides of the inner wall of the compressor housing (1) are fixedly connected to a plurality of positioning frames (15); the reinforcing plates (16) are plugged into the positioning frames (15); and the front side of the upper arc-shaped cover (13) is plugged into the top of the compression cylinder (12).

7. A compressor crankshaft support structure according to claim 4, characterized in that: The upper arc-shaped cover (13) is fixedly connected to the lower arc-shaped seat (131) by bolts, and the bottom of the lower arc-shaped seat (131) is fixedly connected to two reinforcing plates (17), and the outer side of the reinforcing plates (17) is fixedly connected to the inner wall of the compressor casing (1).

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