A swash plate type compressor and a blow-by gap adjusting structure

Abstract

The application relates to a swash plate type compressor and a running clearance adjusting structure, which comprises a cylinder body and a cylinder cover connected to the side of the cylinder body through long bolts; a plurality of cylinder bodies are uniformly arranged with the cylinder body axis as the center; a reciprocable piston is correspondingly arranged in the cylinder body; and a main shaft is rotatably arranged in the inner cavity of the cylinder body through a bearing; the application relates to the technical field of compressors. The swash plate type compressor and the running clearance adjusting structure adopt simple moving parts, especially an integrally designed rolling disc and an optimized connecting structure, so that the number of machined parts is reduced, the machining cost is lowered, meanwhile, the simplified assembly process enables workers to more quickly and accurately complete the assembly work, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a swash plate type compressor and a running clearance adjusting structure. BACKGROUND

[0002] In the existing swash plate type compressor technology, there are some obvious deficiencies. On the one hand, the structure of the moving part is often relatively complex, resulting in a large number of parts to be processed, which not only increases the processing cost, but also makes the assembly process cumbersome, consumes a lot of manpower and time cost, and seriously affects the production efficiency. On the other hand, the adjustment of the running clearance has always been a problem. The traditional running clearance adjusting method has a complex measurement process, the adjusting accuracy is difficult to guarantee, the adjusting process is relatively cumbersome, the installation efficiency is low, and incorrect adjustment is prone to occur, thereby affecting the overall performance and service life of the compressor. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a swash plate type compressor and a running clearance adjusting structure, which simplifies the structure of the moving part, reduces the number of parts to be processed, simplifies the assembly process, and thus improves the production efficiency. Meanwhile, the present application also aims to provide a running clearance adjusting device based on a centering block and a bolt locking, which can conveniently and quickly measure and adjust the running clearance, improve the installation efficiency and correctness, and solve the above-mentioned problems.

[0004] To achieve the above-mentioned purposes, the present application is implemented by the following technical solutions: a swash plate type compressor and a running clearance adjusting structure, comprising a cylinder body and a cylinder cover connected to the side of the cylinder body through a long bolt:

[0005] Further comprising a plurality of cylinder bodies uniformly arranged around the cylinder body axis;

[0006] Further comprising a reciprocating piston arranged in the cylinder body;

[0007] Further comprising a main shaft rotatably arranged in the cylinder body cavity through a bearing;

[0008] Further comprising a swash plate connected to the tail of the main shaft through a motion mechanism, the right side of the swash plate is arranged obliquely relative to the main shaft axis, the bottom of the swash plate is rotatably connected to a rolling disc arranged in the cylinder body cavity, one end of the piston is fixedly connected to a connecting piece, both sides of the rolling disc are fixedly connected to ball heads connected through a connecting rod penetrating the rolling disc, the connecting piece is provided with a ball socket rotatably connected to the ball head above and below, respectively, and the main shaft penetrates the swash plate and the rolling disc in sequence;

[0009] The motion mechanism comprises an empty slot in the inner cavity of the swash plate, a rectangular section is formed in the main shaft at the empty slot, the inner cavity of the rectangular section is respectively provided with a first sliding channel and a second sliding channel, the inner cavity of the swash plate is respectively fixedly connected with a first sliding rod penetrating through the first sliding channel and a second sliding rod penetrating through the second sliding channel, the first sliding channel is vertically arranged in the inner cavity of the main shaft, and the second sliding channel is symmetrically and obliquely arranged in the inner cavity of the main shaft and the inclined surface of the swash plate relative to the vertical direction of the main shaft; in use, the main shaft rotates, the swash plate is driven to rotate through the motion mechanism, the swash plate continuously pushes and pushes the rolling disc to move left and right, and the piston is driven to reciprocate in the cylinder body; 1. A rotating shaft is arranged in the casing, and the swash plate is arranged on the rotating shaft; the swash plate is connected with the piston through a specially designed motion piece; the motion piece is an integrated rolling disc; the rolling disc is directly matched with the swash plate; the surface of the rolling disc is provided with a rolling track matched with the profile of the swash plate; the design replaces the combination of a plurality of transmission parts, reduces the number of parts, and the rolling disc is connected with the casing through a sliding channel; the design of the sliding channel enables the rolling disc to stably move along the predetermined track during the movement process, and reduces the friction and wear during the movement process.

[0010] The gap adjusting structure comprises a centering gap adjusting block which is threadedly connected in the inner cavity of the cylinder cover.

[0011] As a further scheme of the present application, the end of the centering gap adjusting block is provided with a pointed cone section, and the end of the main shaft is provided with a connecting groove matched with the pointed cone section.

[0012] As a further scheme of the present application, the surface of the pointed cone section is coated with a wear-resistant coating.

[0013] As a further scheme of the present application, the surface of the centering gap adjusting block located outside the cylinder cover is provided with a measurement reference surface; an external measurement tool such as a dial gauge is used to measure the blowby gap through the measurement reference surface on the centering gap adjusting block; according to the measurement result, the position of the centering gap adjusting block on the main shaft is adjusted by tightening or loosening the long bolt, so as to adjust the blowby gap.

[0014] As a further scheme of the present application, the end of the centering gap adjusting block is provided with an internal hexagonal thread groove, the depth of the centering gap adjusting block in the inner cavity of the cylinder cover and the contact distance with the main shaft can be adjusted by rotating the centering gap adjusting block through an internal hexagonal wrench, the centering gap adjusting block is designed with a special structure, when the long bolt is locked, the centering gap adjusting block can be closely matched with the main shaft, the blowby gap can be conveniently and accurately measured by measuring the tightening degree of the long bolt and the relative position of the centering gap adjusting block and the main shaft, during the installation process, the position of the shaft can be quickly adjusted according to the measurement result, so as to ensure that the blowby gap is in the best state, and the installation efficiency and correctness are improved.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1、The present application adopts simple structure moving parts, especially the integrated design of rolling disc and optimized connection structure, reduces the number of parts, reduces the processing cost, at the same time, the simplified assembly process enables the workers to complete the assembly work more quickly and accurately, greatly improves the production efficiency.

[0017] 2、The device is simple and convenient to operate. The long bolt and the centering gap adjusting block can quickly adjust the movement gap. The setting of the measurement reference surface makes the measurement process more accurate and fast, improves the installation efficiency and correctness, and further ensures the performance and service life of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic diagram of the present application;

[0019] Figure 2 The figure is a structural sectional view of the present application;

[0020] Figure 3 The figure is an explosion schematic diagram of the present application;

[0021] Figure 4 The figure is a structural schematic diagram of the swash plate and the rolling disc of the present application;

[0022] Figure 5 The figure is a structural schematic diagram of the main shaft and the swash plate and the rolling disc of the present application.

[0023] In the figure: 1, cylinder body; 2, swash plate; 3, cylinder cover; 4, main shaft; 5, centering gap adjusting block; 6, pointed cone section; 7, connecting groove; 8, threaded groove; 9, rolling disc; 10, piston; 11, first slide; 12, rectangular section; 13, second slide; 14, second slide; 15, rectangular section; 17, hollow groove; 19, long bolt; 20, connecting piece; 21, ball head. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined invention purpose, the specific embodiments, structures, features and effects according to the present application are described in detail as follows in combination with the drawings and preferred embodiments.

[0025] Please refer to Figures 1-5 The present application provides a technical solution: a swash plate type compressor and a movement gap adjusting structure, which comprises a cylinder body 1 and a cylinder cover 3 connected to the side of the cylinder body 1 through a long bolt 19:

[0026] It also comprises a plurality of cylinder bodies uniformly arranged around the axis of the cylinder body 1;

[0027] It also comprises a reciprocating piston 10 arranged correspondingly in the cylinder body;

[0028] The main shaft 4 is arranged in the inner cavity of the cylinder body 1 through the bearing;

[0029] The swash plate 2 is connected to the tail of the main shaft 4 through the movement mechanism, and the right side of the swash plate 2 is arranged at an angle with respect to the axis of the main shaft 4. The bottom of the swash plate 2 is rotatably connected to the rolling plate 9 arranged in the inner cavity of the cylinder body 1. One end of the piston 10 is fixedly connected to the connecting piece 20. The two sides of the rolling plate 9 are fixedly connected to the ball head 21 which is connected through the connecting rod penetrating the rolling plate 9. The upper and lower surfaces of the connecting piece 20 are respectively provided with the ball socket rotatably connected to the ball head 21. The main shaft 4 penetrates the swash plate 2 and the rolling plate 9 in sequence.

[0030] The movement mechanism includes the empty slot 17 arranged in the inner cavity of the swash plate 2. The main shaft 4 is provided with the rectangular section 15 at the position of the empty slot 17. The inner cavity of the rectangular section 15 is respectively provided with the first sliding channel 11 and the second sliding channel 14. The inner cavity of the swash plate 2 is respectively fixedly connected to the first sliding rod 12 penetrating the first sliding channel 11 and the second sliding rod 13 penetrating the second sliding channel 14. The first sliding channel 11 is vertically arranged in the inner cavity of the main shaft 4. The second sliding channel 14 is arranged at an angle with respect to the vertical direction of the swash plate 2 with respect to the main shaft 4. In use, the main shaft 4 is rotated to drive the swash plate 2 to rotate through the movement mechanism. The swash plate 2 continuously pushes and pushes the rolling plate 9 to move left and right, thereby driving the piston 10 to reciprocate in the cylinder body. The machine shell is provided with a rotating shaft. The swash plate 2 is installed on the rotating shaft. The swash plate 2 is connected to the piston through the specially designed movement piece. The movement piece adopts the integrated rolling plate 9. The rolling plate 9 is directly matched with the swash plate 2. The surface of the rolling plate 9 is provided with the rolling track matched with the contour of the swash plate 2. This design replaces the combination of multiple transmission parts, reduces the number of parts, and the rolling plate 9 is connected to the machine shell through the sliding channel. The design of the sliding channel enables the rolling plate to stably move along the predetermined track during the movement process, and reduces the friction and wear during the movement process.

[0031] The gap adjusting structure includes the centering gap adjusting block 5 threadedly connected to the inner cavity of the cylinder cover 3.

[0032] The end of the centering gap adjusting block 5 is provided with the pointed cone section 6. The end of the main shaft 4 is provided with the connecting groove 7 matched with the pointed cone section 6.

[0033] The surface of the pointed cone section 6 is coated with a wear-resistant coating.

[0034] The surface of the centering gap adjusting block 5 located outside the cylinder cover 3 is provided with a measurement reference surface. An external measurement tool such as a dial indicator is used to measure the blowby gap through the measurement reference surface on the centering gap adjusting block 5. According to the measurement result, the position of the centering gap adjusting block 5 on the main shaft 4 is adjusted by tightening or loosening the long bolt 19, so as to adjust the blowby gap.

[0035] The end of the centering gap adjusting block 5 is provided with an internal hexagonal threaded groove, the depth of the centering gap adjusting block 5 in the inner cavity of the cylinder cover 3 and the contact distance with the main shaft 4 can be adjusted by rotating the centering gap adjusting block 5 through an internal hexagonal wrench, the centering gap adjusting block 5 is designed with a special structure, when the long bolt 19 is locked, the centering gap adjusting block 5 can be closely matched with the main shaft 4, the shaft gap can be measured conveniently and accurately by measuring the tightening degree of the long bolt 19 and the relative position of the centering gap adjusting block 5 and the main shaft 4, in the installation process, the position of the shaft can be quickly adjusted according to the measurement result, the shaft gap is ensured to be in the best state, and the installation efficiency and correctness are improved.

[0036] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments, which do not depart from the technical solution of the present application, are still within the scope of the technical solution of the present application.

Claims

1. A swash plate type compressor comprising a blow-by gap adjusting structure, a cylinder block (1) and a cylinder head (3) connected to the side of the cylinder block (1) by a long bolt (19), characterized in that: It further comprises a plurality of cylinder blocks uniformly arranged around the axis of the cylinder block (1); Corresponding reciprocating pistons (10) are arranged in the cylinder blocks; It further comprises a main shaft (4) rotatably arranged in the inner cavity of the cylinder block (1) through a bearing; It further comprises a swash plate (2) connected to the tail of the main shaft (4) through a motion mechanism, the right side of the swash plate (2) is arranged at an angle relative to the axis of the main shaft (4), the bottom of the swash plate (2) is rotatably connected to a rolling plate (9) arranged in the inner cavity of the cylinder block (1), one end of the piston (10) is fixedly connected to a connecting piece (20), both sides of the rolling plate (9) are fixedly connected to ball heads (21) connected through a connecting rod penetrating the rolling plate (9), the upper and lower parts of the connecting piece (20) are respectively provided with ball sockets rotatably connected to the ball heads (21), and the main shaft (4) penetrates the swash plate (2) and the rolling plate (9) in sequence; The motion mechanism comprises an empty slot (17) arranged in the inner cavity of the swash plate (2), a rectangular section (15) is arranged in the empty slot (17) of the main shaft (4), a first sliding channel (11) and a second sliding channel (14) are respectively arranged in the inner cavity of the rectangular section (15), a first sliding rod (12) penetrating the first sliding channel (11) and a second sliding rod (13) penetrating the second sliding channel (14) are respectively fixedly connected to the inner cavity of the swash plate (2), the first sliding channel (11) is vertically arranged in the inner cavity of the main shaft (4), and the second sliding channel (14) is arranged at an angle relative to the vertical direction of the main shaft (4) and the inclined surface of the swash plate (2); The blow-by gap adjusting structure comprises a centering gap adjusting block (5) threadedly connected to the inner cavity of the cylinder head (3) through a threaded groove (8); The distal end of the centering gap adjusting block (5) is provided with a pointed cone section (6), and the distal end of the main shaft (4) is provided with a connecting groove (7) matched with the pointed cone section (6).

2. A swash plate type compressor according to claim 1, characterized by: The surface of the pointed cone section (6) is coated with a wear-resistant coating.

3. A swash plate type compressor according to claim 1, characterized by: A measurement reference surface is arranged on the surface of the centering gap adjusting block (5) outside the cylinder head (3).

4. A swash plate type compressor according to claim 1, characterized by: An internal hexagonal threaded groove is arranged at the distal end of the centering gap adjusting block (5).

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