Mounting structure of slip sheet

Abstract

The utility model discloses a slip sheet mounting structure which comprises an air cylinder body, a piston mounting hole and a mounting sliding groove are formed in the middle of the air cylinder body, the piston mounting hole is communicated with the mounting sliding groove, a slip sheet is movably arranged in the mounting sliding groove, a plurality of first roller pin grooves are formed in the side face of the mounting sliding groove, and a plurality of second roller pin grooves are formed in the side face of the mounting sliding groove. A first roller pin groove is formed in the front end of the sliding piece, a first roller pin is rotationally arranged in the first roller pin groove and attached to the side face of the sliding piece, a rolling piston is rotationally arranged in the piston installation hole, a second roller pin groove is formed in the front end of the sliding piece, a second roller pin is installed in the second roller pin groove, and the second roller pin is attached to the outer side face of the rolling piston. The utility model has the advantages of wear resistance, good air tightness and simple structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and in particular relates to an installation structure of a sliding vane. Background Art

[0002] Single vane compressors are also called scraper compressors or rolling rotor compressors. The cylindrical eccentric rotor (also called piston) is installed in the cylinder body, and the center of rotation of the rotor is consistent with the center of the cylinder body. In the middle of the upper part of the cylinder body, a scraper that can slide up and down is installed. Due to the force of the spring, the lower part of the scraper is always in contact with the rotor surface. In this way, two closed working volumes are formed between the scraper and the outer surface of the rotor, the inner wall of the cylinder body and the end covers on both sides. The size of the volume changes periodically with the rotation of the rotor, thereby realizing the process of suction, compression, exhaust and expansion.

[0003] The problem with the prior art is that the original vane of the rolling rotor compressor contacts the outer arc surface of the piston through the outer convex cylindrical surface of the vane, forming a linear contact rotary motion sealing structure, which is a high-pair mechanism and is prone to wear, affecting the performance and life of the compressor; the original vane is slidably installed in the cylinder groove, and there is a certain amount of wear and resistance between the side of the vane and the cylinder, which affects the working performance of the compressor. Summary of the invention

[0004] The utility model aims to solve the problems existing in the prior art and provide a sliding plate installation structure, which has the advantages of wear resistance, good air tightness and simple structure.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a sliding plate installation structure, including a cylinder body, a piston mounting hole and a mounting slot are provided in the middle of the cylinder body, the piston mounting hole is connected to the mounting slot, a sliding plate is movably arranged in the mounting slot, a plurality of needle roller grooves 1 are provided on the side of the mounting slot, a needle roller 1 is rotatably arranged in the needle roller groove 1, the needle roller 1 is fitted with the side of the sliding plate, a rolling piston is rotatably arranged in the piston mounting hole, a needle roller groove 2 is provided at the front end of the sliding plate, a needle roller 2 is installed in the needle roller groove 2, and the needle roller 2 is fitted with the outer side surface of the rolling piston.

[0006] In the above scheme, a piston mounting hole is provided in the middle of the cylinder body to facilitate the installation of the rolling piston, and a sliding groove is used to connect and limit the sliding plate, and the sliding plate can reciprocate along the length direction of the mounting groove, and a needle roller groove is provided on the side of the mounting groove to position the needle roller, and a pair of needle rollers are used to fit and position the side of the sliding plate, and the sliding connection between the sliding plate and the mounting groove is changed to a rolling connection, which reduces the wear on the side of the sliding plate and reduces the movement resistance of the sliding plate, thereby improving the working efficiency of the compressor. The front end of the sliding plate is the end connected to the rolling piston, and the front end of the sliding plate is provided with a needle roller groove 2 to connect the needle roller 2, and the needle roller 2 is used to fit the rolling piston, thereby dividing the space in the piston mounting hole into two parts: a high-pressure area and a low-pressure area, which is convenient for compression and suction.

[0007] Furthermore, the second needle roller includes a fitting plane and an arcuate surface for slidingly cooperating with the second needle roller groove.

[0008] The arc surface of the second needle roller cooperates with the second needle roller groove to realize a swingable connection. At the same time, a fitting plane tangent to the rolling piston is set to change the original sliding linear contact into rolling surface contact, and the fitting effect is good.

[0009] Furthermore, the second needle roller includes an arcuate fitting surface and an arcuate surface for slidingly cooperating with the second needle roller groove.

[0010] The arc surface of the second needle roller cooperates with the second needle roller groove to realize a swingable connection. At the same time, an arc-shaped fitting surface that fits with the rolling piston is provided, which changes the original sliding linear contact into rolling surface contact, and the fitting effect is good.

[0011] Furthermore, the cross section of the needle roller one is circular, and the size and shape of the needle roller groove match the needle roller one.

[0012] A circular needle roller 1 is arranged to roll along with the movement of the sliding plate, thereby reducing the movement resistance and wear of the sliding plate, and the needle roller groove limits the needle roller 1.

[0013] Furthermore, a plurality of the needle roller grooves 1 are provided along the length direction of the mounting slide groove, and the distances of the needle roller 1 beyond the side surface of the mounting slide groove are all equal.

[0014] A plurality of needle roller grooves are provided to connect the needle rollers, and the plurality of needle rollers are used to ensure the position limiting of the slide, so that the slide moves in a straight line.

[0015] Furthermore, the needle roller groove is provided on one side of the mounting slide groove, or is symmetrically provided on both sides of the mounting slide groove.

[0016] The needle roller groove is opened on one side of the installation slide groove to perform rolling connection on one side of the slide to reduce resistance and wear; it can also be opened on both sides of the installation slide groove.

[0017] Furthermore, the needle roller grooves 1 are arranged in an array along the length direction of the installation slide groove, and the diameter of the needle roller 1 is 1mm-3mm.

[0018] The array is provided with a roller needle groove 1 and a roller needle 1 to ensure the stable connection between the two sides of the slide.

[0019] Furthermore, a V-shaped connecting groove is provided at the rear end of the slide, and the V-shaped connecting groove is used to connect a spring.

[0020] A V-shaped connecting groove is provided at the rear end of the sliding vane to facilitate the connection and positioning of the spring. The spring makes the roller needle 2 on the sliding vane fit with the rolling piston to ensure the working efficiency of the compressor.

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

[0022] 1. A needle roller groove 1 is opened on the side of the mounting slide groove to connect the needle roller 1, and the needle roller 1 is used to roll the side of the sliding plate, thereby reducing the wear and movement resistance between the sliding plate and the cylinder mounting slide groove, increasing the service life of the components, making the sliding plate move smoothly, ensuring the airtightness between the sliding plate and the rolling piston, and ensuring the working efficiency of the compressor;

[0023] 2. The needle roller 2 is slidably arranged at the end of the sliding plate, and the fitting plane of the needle roller 2 contacts the outer side of the rolling piston to ensure the separation of the high-pressure area and the low-pressure area of ​​the compressor. The original line contact is changed to a surface contact structure, and the kinematic pair is changed from a high pair to a low pair. The friction coefficient is small, and the semicircular needle roller 2 is in an autonomous fitting state with the circular motion of the rolling piston. The sealing surface is wide and the airtightness is good. It can be widely used in the field of refrigeration equipment and refrigeration appliances;

[0024] 3. The overall structure is simple and easy to manufacture. The two rolling structures of the needle rollers are unique, and the semicircular needle roller fitting structure reduces friction and can improve energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a sliding plate installation structure according to Embodiment 1 of the present utility model;

[0026] Figure 2 This is a schematic structural diagram of the needle roller 1 in Embodiment 1 of the present utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the needle roller 2 in the embodiment 1 of the utility model;

[0028] Figure 4 It is a structural stereogram of the sliding plate in the embodiment 1 of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the needle roller 2 in the embodiment 2 of the present utility model;

[0030] Figure 6 This is a schematic structural diagram of a sliding plate installation structure according to Embodiment 2 of the present utility model;

[0031] In the figure: 1. Cylinder body; 2. Piston mounting hole; 3. Mounting slide groove; 4. Slide; 5. Needle roller groove 1; 6. Needle roller 1; 7. Rolling piston; 8. Needle roller 2; 9. Needle roller groove 2; 10. Arc surface; 11. Fitting plane; 12. Arc fitting surface; 13. V-shaped connecting groove; 14. Spring. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative labor are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the terms front, back, left, right, etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the utility model product is usually placed when used. They are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] Example 1

[0034] like Figure 1-4 As shown, a mounting structure of a slide 4 comprises a cylinder body 1, a piston mounting hole 2 and a mounting slot 3 are provided in the middle of the cylinder body 1, the piston mounting hole 2 is communicated with the mounting slot 3, a slide 4 is movably arranged in the mounting slot 3, a plurality of needle roller grooves 5 are provided on the side of the mounting slot 3, a needle roller 6 is rotatably arranged in the needle roller groove 5, the needle roller 6 is fitted with the side of the slide 4, a rolling piston 7 is rotatably arranged in the piston mounting hole 2, a needle roller groove 2 9 is provided at the front end of the slide 4, a needle roller 2 8 is installed in the needle roller groove 2 9, and the needle roller 2 8 is fitted with the outer side of the rolling piston 7.

[0035] In the above scheme, a piston mounting hole 2 is provided in the middle of the cylinder body 1 to facilitate the installation of the rolling piston 7, and the sliding plate 4 is connected and limited by the installation slide groove 3. The sliding plate 4 can reciprocate along the length direction of the installation slide groove 3, and a needle roller groove 5 is provided on the side of the installation slide groove 3 to position the needle roller 6. The side of the sliding plate 4 is fitted and positioned by the needle roller 6, and the sliding connection between the sliding plate 4 and the installation slide groove 3 is changed to a rolling connection, which reduces the wear on the side of the sliding plate 4 and reduces the movement resistance of the sliding plate 4, thereby improving the working efficiency of the compressor. The front end of the sliding plate 4 is the end connected to the rolling piston 7, and the front end of the sliding plate 4 is provided with a needle roller groove 29 to connect the needle roller 28, and the needle roller 28 is used to fit with the rolling piston 7, thereby dividing the space in the piston mounting hole 2 into two parts, a high-pressure area and a low-pressure area, which is convenient for compression and suction.

[0036] The mounting slot 3 is in the shape of a strip, and the outer contour of the slide 4 is in the shape of a cube.

[0037] Furthermore, the second needle roller 8 includes a fitting plane 11 and an arcuate surface 10 for slidingly cooperating with the second needle roller groove 9.

[0038] The arc surface 10 of the needle roller 8 cooperates with the needle roller groove 9 to achieve a swingable connection. At the same time, a fitting plane 11 tangent to the rolling piston 7 is provided to change the original sliding linear contact into rolling surface contact, and the fitting effect is good.

[0039] Furthermore, the cross section of the needle roller 6 is circular, and the size and shape of the needle roller groove match those of the needle roller 6.

[0040] The circular needle roller 6 is configured to roll along with the movement of the slide 4, thereby reducing the movement resistance and wear of the slide 4, and the needle roller groove limits the needle roller 6.

[0041] Furthermore, a plurality of needle roller grooves 5 are provided along the length direction of the mounting slide groove 3, and the distances of the needle roller 6 beyond the side of the mounting slide groove 3 are all equal.

[0042] A plurality of needle roller grooves 5 are provided to connect the needle rollers 6, and the plurality of needle rollers 6 are used to ensure that the slide 4 is limited, so that the slide 4 moves linearly.

[0043] The distance that the needle roller 6 exceeds the side of the mounting slide groove 3 does not exceed 2 mm, and the portion of the needle roller 6 exceeding the side of the mounting slide groove 3 is used to connect the slide plate 4.

[0044] Furthermore, the needle roller groove 5 is symmetrically opened on both sides of the mounting slide groove 3.

[0045] The two sides of the sliding vane 4 are connected by rolling to reduce resistance and wear.

[0046] Furthermore, the needle roller grooves 5 are arranged in an array along the length direction of the mounting slide groove 3, and the diameter of the needle roller 6 is 1mm-3mm.

[0047] The array is provided with a needle roller groove 5 and a needle roller 6 to ensure the stable connection of the two sides of the slide 4.

[0048] Furthermore, a V-shaped connecting groove 13 is formed at the rear end of the slide 4 , and the V-shaped connecting groove 13 is used to connect the spring 14 .

[0049] A V-shaped connecting groove 13 is provided at the rear end of the slide plate 4 to facilitate the connection and positioning of the spring 14. The spring 14 enables the roller needle 8 on the slide plate 4 to fit with the rolling piston 7 to ensure the working efficiency of the compressor.

[0050] Example 2

[0051] like Figure 5-6 As shown, a sliding plate installation structure in this embodiment is further modified as follows on the basis of Embodiment 1:

[0052] Furthermore, the second needle roller 8 includes an arcuate fitting surface 12 and an arcuate surface 10 for slidingly cooperating with the second needle roller groove 9.

[0053] The arc surface 10 of the needle roller 8 cooperates with the needle roller groove 9 to achieve a swingable connection. At the same time, an arcuate fitting surface 12 is provided to fit the rolling piston 7, changing the original linear contact to a rolling surface contact, and achieving a good fitting effect.

[0054] The size and shape of the arcuate fitting surface 12 match the size and shape of the rolling piston 7, thereby increasing the fitting surface and improving the wear resistance.

[0055] Furthermore, the needle roller groove 5 is opened on one side of the mounting slide groove 3.

[0056] The needle roller groove 5 is opened on one side of the mounting slide groove 3 to perform rolling connection on one side of the slide plate 4 to reduce resistance and wear.

[0057] 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 sliding plate installation structure, characterized in that: It includes a cylinder body, a piston mounting hole and a mounting groove are provided in the middle of the cylinder body, the piston mounting hole is connected with the mounting groove, a sliding plate is movably arranged in the mounting groove, a plurality of needle roller grooves 1 are provided on the side of the mounting groove, a needle roller 1 is rotatably arranged in the needle roller groove 1, the needle roller 1 is fitted with the side of the sliding plate, a rolling piston is rotatably arranged in the piston mounting hole, a needle roller groove 2 is provided at the front end of the sliding plate, a needle roller 2 is installed in the needle roller groove 2, and the needle roller 2 is fitted with the outer side of the rolling piston.

2. The installation structure of the slide according to claim 1, characterized in that: The second needle roller comprises a fitting plane and an arcuate surface for slidingly cooperating with the second needle roller groove.

3. The installation structure of the slide according to claim 1, characterized in that: The second needle roller comprises an arcuate fitting surface and an arcuate surface for slidingly cooperating with the second needle roller groove.

4. The installation structure of the slide according to claim 1, characterized in that: The cross section of the needle roller one is circular, and the size and shape of the needle roller groove match the needle roller one.

5. The installation structure of the slide according to claim 1, characterized in that: A plurality of the needle roller grooves 1 are provided along the length direction of the installation slide groove, and the distances that the needle roller 1 exceeds the side surface of the installation slide groove are all equal.

6. The installation structure of the sliding plate according to claim 5, characterized in that: The needle roller groove is provided on one side of the installation slide groove, or is symmetrically provided on both sides of the installation slide groove.

7. The installation structure of the sliding plate according to claim 5, characterized in that: The needle roller grooves 1 are arranged in an array along the length direction of the installation slide groove, and the diameter of the needle roller 1 is 1mm-3mm.

8. The installation structure of the slide according to claim 1, characterized in that: A V-shaped connecting groove is provided at the rear end of the slide, and the V-shaped connecting groove is used for connecting a spring.

Images