A refrigeration compressor cylinder seat testing device

Abstract

The present invention relates to the technical field of refrigeration compressors, and specifically to a refrigeration compressor cylinder seat testing device, comprising a cylinder seat clamping mechanism, a cylinder clamping mechanism, a support frame, and a drive structure. The support frame is provided with a cylinder seat clamping mechanism, which clamps and positions the compressor cylinder seat on the support frame. The compressor cylinder seat is also provided with a crankshaft and a compressor cylinder. The cylinder seat clamping mechanism and the cylinder clamping mechanism can adapt to cylinder seats of different structures and sizes, thereby enabling testing of silencer slots and heat dissipation structures of various structures. The compressor cylinder seat and compressor cylinder are detachable structures, and parameter calibration of different cylinder displacements can be achieved by changing compressor cylinders of different cylinder diameters.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration compressors, in particular to a refrigeration compressor cylinder seat testing device. Background Art

[0002] Refrigeration compressors, the core of gas compression technology, have been widely used in various electrical equipment. Only by continuously improving and refining the performance of compressors can we adapt to the rapid development of the industry. The cylinder block is the carrier of the refrigeration compressor's moving pair. The quality of its structure directly affects the reliability of the cylinder block itself and the moving pair, and to a certain extent affects the efficiency of the compressor. Therefore, the design or improvement of the cylinder block is particularly important.

[0003] A piston-type refrigeration compressor typically consists of a crankshaft, connecting rod, piston pin, piston, and cylinder base (or crankcase). The cylinder is typically a solid cylindrical surface, and the distance between the piston degassing groove and the cylinder is usually very small. The gap between the piston and the cylinder is even smaller (usually less than 0.03mm). As a result, the large amount of heat generated by the compressed gas in the cylinder cannot be dissipated effectively, wasting a lot of compression work. In addition, lubricating oil tends to accumulate in the degassing groove and easily be drawn into the cylinder during piston movement. Therefore, repeated experiments are often required to determine the structural design of the cylinder base to meet the design requirements of the refrigeration compressor for noise reduction, heat dissipation, and compression power. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a refrigeration compressor cylinder seat testing device, which can adapt to cylinder seats of different structural forms and sizes through the cylinder seat clamping mechanism and the cylinder clamping mechanism, and thus can test silencer grooves and heat dissipation structures of various structural forms. The compressor cylinder seat and compressor cylinder are detachable structures, and can realize parameter calibration of different cylinder displacements by changing the compressor cylinders of different cylinder diameters.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A refrigeration compressor cylinder seat testing device includes a cylinder seat clamping mechanism, a cylinder clamping mechanism, a support frame, and a drive structure. The support frame is provided with a cylinder seat clamping mechanism, and the compressor cylinder seat is clamped and positioned on the support frame by the cylinder seat clamping mechanism. The compressor cylinder seat is also provided with a crankshaft and a compressor cylinder.

[0007] The support frame is further provided with a cylinder clamping mechanism, which can clamp and position the compressor cylinder to ensure that the position of the compressor cylinder matches the position of the compressor cylinder seat;

[0008] The support frame is provided with a driving structure, which is in driving connection with the crankshaft. The crankshaft can be mounted with a connecting rod and a piston, and the rotation of the crankshaft drives the piston to perform linear reciprocating motion in the compressor cylinder;

[0009] The cylinder barrel of the compressor cylinder is provided with a degassing portion, a heat dissipation portion and a cylinder hole. The piston driven by the crankshaft reciprocates in the cylinder hole. The cylinder barrel is detachably connected and fixed to the compressor cylinder base by a positioning pin. By switching and installing compressor cylinders of different models on the compressor cylinder base, the performance of the degassing portion and the heat dissipation portion can be tested.

[0010] The seat body of the compressor cylinder seat has different structural shapes, and seat body reinforcement ribs are provided on the seat body. The cylinder seat clamping mechanism can adapt to the seat bodies of different structural shapes to test the influence of different forms of seat body reinforcement ribs on the performance of the compressor cylinder seat.

[0011] Furthermore, the support frame is provided with two cylinder seat clamping mechanisms of the same structure and arranged opposite to each other, and the cylinder seat clamping mechanisms include a clamping base, a sliding telescopic seat, a screw, a support connecting rod group, a positioning clamping part, a first connecting rod slide seat, a second connecting rod slide seat and an operating handle;

[0012] The clamping base is fixedly arranged on the working platform of the support frame, and a sliding telescopic seat is slidably provided on the clamping base. The clamping base and the sliding telescopic seat are connected through the screw transmission, and an operating handle is provided on the screw;

[0013] The sliding and telescopic seat is provided with a first connecting rod sliding seat and a second connecting rod sliding seat capable of sliding laterally;

[0014] The sliding and telescopic seat is provided with a plurality of supporting link groups, each end of the supporting link group is provided with a positioning clamping portion, and the other end of the supporting link group is rotatably provided on the sliding and telescopic seat, the first link slide and the second link slide;

[0015] By lateral sliding of the first connecting rod slide and the second connecting rod slide, the longitudinal clamping positions of the plurality of positioning clamping parts supporting the end of the connecting rod group can be changed, thereby being able to adapt to different external shapes of the compressor cylinder seat.

[0016] Furthermore, the support link group includes a first link, a second link, a third link, a fourth link, a fifth link, and a sixth link;

[0017] The positioning clamping part includes a first positioning block, a second positioning block, and a third positioning block;

[0018] One end of the first connecting rod is rotatably disposed on one side of the sliding and telescopic seat, and the other end of the first connecting rod is rotatably disposed on the first positioning block;

[0019] One end of the second connecting rod is rotatably disposed on the first connecting rod slide, and the other end of the second connecting rod is rotatably disposed on the first positioning block;

[0020] One end of the third connecting rod is rotatably disposed on the first connecting rod slide, and the other end of the third connecting rod is rotatably disposed on the second positioning block;

[0021] One end of the fourth connecting rod is rotatably disposed on the second connecting rod slide, and the other end of the fourth connecting rod is rotatably disposed on the second positioning block;

[0022] One end of the fifth connecting rod is rotatably disposed on the second connecting rod slide, and the other end of the fifth connecting rod is rotatably disposed on the third positioning block;

[0023] One end of the sixth connecting rod is rotatably arranged on the sliding telescopic seat, and the other end of the sixth connecting rod is rotatably arranged on the third positioning block.

[0024] Furthermore, the crankshaft includes a long shaft, a balancing plate, and a rotating shaft. The long shaft passes through the compressor cylinder block and is connected to the clamping portion of the drive structure. The long shaft is driven to rotate by a drive motor. A balancing plate is provided at the other end of the long shaft. A rotating shaft is provided on the balancing plate. A connecting rod is rotatably mounted on the rotating shaft. The drive motor is installed below the working platform through a motor support frame.

[0025] The compressor cylinder base also includes a stator mounting foot and a cylinder fixing groove, and the compressor cylinder also includes an end cover mounting portion. The cylinder barrel is detachably fixed in the cylinder fixing groove by a positioning pin, and the distance between the cylinder barrel and the crankshaft can be changed.

[0026] Furthermore, the cylinder clamping mechanism, the sliding guide rail, the sliding base, the inner support clamping part and the operating part;

[0027] The sliding guide rail is fixedly arranged on the working platform, the sliding base is slidably arranged on the sliding guide rail, and the sliding base is provided with an inner support clamping part and an operating part;

[0028] The position and movement trajectory of the inner support clamping portion are adapted to the cylinder seat clamping mechanism, and can ensure the installation position of the compressor cylinder, the compressor cylinder seat, and the crankshaft;

[0029] The inner support clamping portion clamps the cylinder hole of the compressor cylinder from the inside, and can adapt to the shape of the compressor cylinder with a degassing portion and a heat dissipation portion of different structures;

[0030] The compressor cylinder that is clamped and positioned is moved along the central axis of the compressor cylinder seat by means of the sliding guide rail and the sliding base to complete the positioning installation.

[0031] Furthermore, the inner support clamping portion includes an inner support base, a first support plate, a second support plate, a driving rack, a driving wheel, a swing arm, a sliding block and a guide limit portion;

[0032] The inner support base is fixed on the sliding base, and a driving rack is slidably provided in the sliding base. The driving rack is controlled by the operating part to slide along the longitudinal extension of the sliding base. The sliding base is slidably provided with a first support plate and a second support plate through a limit portion. The first support plate and the second support plate are located on both sides of the inner support base. The first support plate and the second support plate can slide laterally on the sliding base under the constraint of the limit portion;

[0033] The first support plate and the second support plate are provided with longitudinal limiting grooves, and a plurality of sliding blocks are provided in the limiting grooves. The sliding blocks are rotatably connected to the swing arm, and the other end of the swing arm is provided with a driving wheel that can rotate synchronously, and the driving wheel is engaged with the driving rack;

[0034] By driving the rack to slide longitudinally, the swing arm is driven to rotate, thereby changing the lateral distance between the first support plate and the second support plate and the inner support base, and the first support plate and the second support plate abut and clamp the inside of the cylinder hole of the compressor cylinder.

[0035] Compared with the prior art, the present invention provides a refrigeration compressor cylinder seat testing device, which has the following beneficial effects:

[0036] 1. The cylinder block clamping mechanism of the present invention can adapt to compressor cylinder blocks of different structural shapes and clamp and fix them, thereby being able to test the structural form of the compressor cylinder block. By changing different structural forms, reinforcement rib arrangements and pneumatic structures, the performance parameters of various compressor cylinder blocks can be tested and corresponding structural adjustments can be made.

[0037] 2. The cylinder clamping mechanism of the present invention can clamp the cylinder hole of the compressor cylinder from the inside, thereby avoiding the constraint of the outer shape of the compressor cylinder on the clamping mechanism. At the same time, it can better ensure the alignment of the center of the compressor cylinder with the center of the crankshaft. By changing the structural form of the silencer and heat dissipation part on the compressor cylinder and changing the compressor cylinder with different cylinder diameters, it is convenient to determine the optimal structural design.

[0038] 3. The cylinder barrel of the present invention is detachably fixed in the cylinder fixing groove by a positioning pin, which can change the distance between the cylinder barrel and the crankshaft, thereby enabling installation tests of pistons, connecting rods and crankshafts of various sizes and structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the overall structure of the refrigeration compressor cylinder seat testing device of the present invention;

[0040] Figure 2 Schematic diagram of the top view of the cylinder seat testing device of the present invention;

[0041] Figure 3 It is a structural schematic diagram of the cylinder seat clamping mechanism of the present invention;

[0042] Figure 4 It is a front view of the cylinder block testing device of the present invention;

[0043] Figure 5 It is a structural schematic diagram of the compressor cylinder base of the present invention;

[0044] Figure 6 A schematic diagram of the compressor cylinder base according to the present invention from another direction;

[0045] Figure 7 It is a structural schematic diagram of the cylinder clamping mechanism of the present invention;

[0046] Figure 8 Schematic diagram of the internal structure of the cylinder clamping mechanism of the present invention;

[0047] In the picture:

[0048] Compressor cylinder seat 1, stator mounting foot 11, seat body 12, seat body reinforcement rib 13, cylinder fixing groove 14;

[0049] Crankshaft 2, long shaft 21, balance plate 22, rotating shaft 23;

[0050] Cylinder seat clamping mechanism 3, clamping base 31, sliding and telescopic base 32, screw 33, supporting connecting rod group 34, first connecting rod 341, second connecting rod 342, third connecting rod 343, fourth connecting rod 344, fifth connecting rod 345, sixth connecting rod 346, positioning clamping part 35, first positioning block 351, second positioning block 352, third positioning block 353, first connecting rod slide 36, second connecting rod slide 37, operating handle 38;

[0051] Compressor cylinder 4, cylinder barrel 41, positioning pin 42, end cover mounting portion 43, degassing portion 44, heat dissipation portion 45, cylinder hole 46;

[0052] Cylinder clamping mechanism 5, sliding guide rail 51, sliding base 52, inner support clamping part 53, inner support base 531, first support plate 532, second support plate 533, driving rack 534, driving wheel 535, swing arm 536, sliding block 537, guide limiter 538, operating part 54;

[0053] Support frame 6, working platform 61, motor support frame 62, support legs 63;

[0054] Driving structure 7, driving motor 71, clamping part 72; Implementation Method

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0056] The following is based on the attached Figure 1-8 The present invention is described in detail. The refrigeration compressor cylinder seat testing device of the present invention includes a cylinder seat clamping mechanism 3, a cylinder clamping mechanism 5, a support frame 6 and a driving structure 7. The support frame 6 is provided with a cylinder seat clamping mechanism 3, and the compressor cylinder seat 1 is clamped and positioned on the support frame 6 by the cylinder seat clamping mechanism 3. The compressor cylinder seat 1 is also provided with a crankshaft 2 and a compressor cylinder 4; the support frame 6 is also provided with a cylinder clamping mechanism 5, and the cylinder clamping mechanism 5 can clamp and position the compressor cylinder 4 to ensure that the position of the compressor cylinder 4 matches the position of the compressor cylinder seat 1; the support frame 6 is provided with a driving structure 7, and the driving structure 7 is connected to the crankshaft 2 in transmission. The crankshaft 2 can be installed with a connecting rod and a piston, and the crankshaft 2 is driven by the rotation of the crankshaft 2. The piston performs linear reciprocating motion in the compressor cylinder 4; a degassing portion 44, a heat dissipation portion 45 and a cylinder hole 46 are provided on the cylinder barrel 41 of the compressor cylinder 4, and the piston driven by the crankshaft 2 reciprocates in the cylinder hole 46, and the cylinder barrel 41 is detachably connected and fixed to the compressor cylinder block 1 by a locating pin 42, and the performance of the degassing portion 44 and the heat dissipation portion 45 can be tested by changing and installing different types of compressor cylinders 4 on the compressor cylinder block 1; the seat body 12 of the compressor cylinder block 1 has different structural shapes, and the seat body 12 is provided with a seat body reinforcement rib 13, and the cylinder block clamping mechanism 3 can adapt to the seat body 12 of different structural shapes to test the influence of different forms of seat body reinforcement ribs 13 on the performance of the compressor cylinder block 1.

[0057] The cylinder seat clamping mechanism can adapt to compressor cylinder seats of different structural shapes and clamp and fix them, and thus can test the structural form of the compressor cylinder seat. By changing different structural forms, reinforcement rib arrangements and pneumatic structures, the performance parameters of various compressor cylinder seats can be tested and corresponding structural adjustments can be made.

[0058] Furthermore, the support frame 6 is provided with two cylinder seat clamping mechanisms 3 with the same structure and arranged opposite to each other, and the cylinder seat clamping mechanism 3 includes a clamping base 31, a sliding telescopic base 32, a screw 33, a support connecting rod group 34, a positioning clamping portion 35, a first connecting rod slide 36, a second connecting rod slide 37 and an operating handle 38; the clamping base 31 is fixedly set on the working platform 61 of the support frame 6, and a sliding telescopic base 32 is slidably provided on the clamping base 31, and the clamping base 31 and the sliding telescopic base 32 are connected by the screw 33, and the screw 33 is provided with an operating handle 38; the sliding The telescopic seat 32 is provided with a first connecting rod slide 36 and a second connecting rod slide 37 that can slide laterally; the sliding telescopic seat 32 is provided with multiple groups of supporting connecting rod groups 34, and the end of each group of the supporting connecting rod group 34 is provided with a positioning clamping part 35, and the other end of the supporting connecting rod group 34 is rotatably provided on the sliding telescopic seat 32, the first connecting rod slide 36 and the second connecting rod slide 37; through the lateral sliding of the first connecting rod slide 36 and the second connecting rod slide 37, the longitudinal clamping position of the multiple positioning clamping parts 35 at the end of the supporting connecting rod group 34 can be changed, thereby being able to adapt to the different external shapes of the compressor cylinder seat 1.

[0059] Furthermore, the supporting link group 34 includes a first link 341, a second link 342, a third link 343, a fourth link 344, a fifth link 345, and a sixth link 346; the positioning clamping portion 35 includes a first positioning block 351, a second positioning block 352, and a third positioning block 353; one end of the first link 341 is rotatably set on one side of the sliding and telescopic seat 32, and the other end of the first link 341 is rotatably set on the first positioning block 351; one end of the second link 342 is rotatably set on the first link slide 36, and the other end of the second link 342 is rotatably set on the first positioning block 351; one end of the third link 343 is rotatably set on the first link slide 36 One end of the fourth link 344 is rotatably set on the second link slide 37, and the other end of the fourth link 344 is rotatably set on the second positioning block 352; one end of the fifth link 345 is rotatably set on the second link slide 37, and the other end of the fifth link 345 is rotatably set on the third positioning block 353; one end of the sixth link 346 is rotatably set on the sliding and telescopic seat 32, and the other end of the sixth link 346 is rotatably set on the third positioning block 353.

[0060] The cylinder clamping mechanism can clamp the cylinder hole of the compressor cylinder from the inside, thereby avoiding the constraint of the compressor cylinder's shape on the clamping mechanism. At the same time, it can better ensure the alignment of the center of the compressor cylinder with the center of the crankshaft. By changing the structural form of the silencer and heat dissipation part on the compressor cylinder and changing the compressor cylinder with different cylinder diameters, it is convenient to determine the optimal structural design.

[0061] Furthermore, the crankshaft 2 includes a long shaft 21, a balancing disk 22, and a rotating shaft 23. The long shaft 21 passes through the compressor cylinder base 1 and is connected to the clamping portion 72 of the drive structure 7. The long shaft 21 is driven to rotate by the drive motor 71. A balancing disk 22 is provided at the other end of the long shaft 21. A rotating shaft 23 is provided on the balancing disk 22. A connecting rod is rotatably installed on the rotating shaft 23. The drive motor 71 is installed below the working platform 61 through the motor support frame 62; the compressor cylinder base 1 also includes a stator mounting foot 11 and a cylinder fixing groove 14, and the compressor cylinder 4 also includes an end cover mounting portion 43. The cylinder barrel 41 is detachably fixed in the cylinder fixing groove 14 by a positioning pin 42, which can change the distance between the cylinder barrel 41 and the crankshaft 2.

[0062] Furthermore, the cylinder clamping mechanism 5, the sliding guide rail 51, the sliding base 52, the inner support clamping part 53 and the operating part 54; the sliding guide rail 51 is fixedly arranged on the working platform 61, the sliding base 52 is slidably arranged on the sliding guide rail 51, and the sliding base 52 is provided with an inner support clamping part 53 and an operating part 54; the position and movement trajectory of the inner support clamping part 53 are adapted to the cylinder seat clamping mechanism 3, which can ensure the installation position of the compressor cylinder 4 and the compressor cylinder seat 1 and the crankshaft 2; the cylinder hole 46 of the compressor cylinder 4 is clamped from the inside by the inner support clamping part 53, which can adapt to the shape of the compressor cylinder 4 with the degassing part and the heat dissipation part of different structures; the clamped and positioned compressor cylinder 4 is moved along the central axis of the compressor cylinder seat 1 by the sliding guide rail 51 and the sliding base 52 to complete the positioning and installation.

[0063] Furthermore, the inner support clamping portion 53 includes an inner support base 531, a first support plate 532, a second support plate 533, a driving rack 534, a driving wheel 535, a swing arm 536, a sliding block 537 and a guide limit portion 538; the inner support base 531 is fixed on the sliding base 52, and a driving rack 534 is slidably provided in the sliding base 52, and the driving rack 534 is controlled by the operating portion 54 to slide along the longitudinal extension and contraction of the sliding base 52, and the sliding base 52 is slidably provided with a first support plate 532 and a second support plate 533 through the limit portion, and the first support plate 532 and the second support plate 533 are located on both sides of the inner support base 531, and the first support plate 532 and the second support plate 533 can be in the inner support base 531. The sliding base 52 slides horizontally under the constraint of the limiting part; the first support plate 532 and the second support plate 533 are provided with longitudinal limiting grooves, and a plurality of sliding blocks 537 are provided in the limiting grooves, and the sliding blocks 537 are rotatably connected to the swing arm 536, and the other end of the swing arm 536 is provided with a driving wheel 535 that can rotate synchronously, and the driving wheel 535 is engaged with the driving rack 534; the swing arm 536 is driven to rotate by the longitudinal sliding of the driving rack 534, thereby changing the lateral distance between the first support plate 532 and the second support plate 533 and the inner support base 531, and the first support plate 532 and the second support plate 533 abut and clamp the inside of the cylinder hole 46 of the compressor cylinder 4.

[0064] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A refrigeration compressor cylinder seat testing device, comprising a cylinder seat clamping mechanism (3), a cylinder clamping mechanism (5), a support frame (6) and a drive structure (7), characterized in that: A cylinder seat clamping mechanism (3) is provided on the support frame (6), and the compressor cylinder seat (1) is clamped and positioned on the support frame (6) by the cylinder seat clamping mechanism (3). A crankshaft (2) and a compressor cylinder (4) are also provided on the compressor cylinder seat (1); The support frame (6) is further provided with a cylinder clamping mechanism (5), and the cylinder clamping mechanism (5) is capable of clamping and positioning the compressor cylinder (4) to ensure that the position of the compressor cylinder (4) matches that of the compressor cylinder seat (1); A driving structure (7) is provided on the support frame (6), and the driving structure (7) is in driving connection with the crankshaft (2). A connecting rod and a piston can be mounted on the crankshaft (2), and the piston is driven to perform linear reciprocating motion in the compressor cylinder (4) by the rotation of the crankshaft (2); The cylinder barrel (41) of the compressor cylinder (4) is provided with a degassing portion (44), a heat dissipation portion (45) and a cylinder hole (46); a piston driven by the crankshaft (2) reciprocates in the cylinder hole (46); the cylinder barrel (41) is detachably connected and fixed to the compressor cylinder base (1) via a positioning pin (42); and the performance of the degassing portion (44) and the heat dissipation portion (45) is detected by installing compressor cylinders (4) of different models on the compressor cylinder base (1); The seat body (12) of the compressor cylinder seat (1) has different structural shapes, and the seat body (12) is provided with a seat body reinforcement rib (13). The cylinder seat clamping mechanism (3) can adapt to the seat bodies (12) of different structural shapes to test the influence of different forms of seat body reinforcement ribs (13) on the performance of the compressor cylinder seat (1); The support frame (6) is provided with two cylinder seat clamping mechanisms (3) with the same structure and arranged opposite to each other, and the cylinder seat clamping mechanism (3) includes a clamping base (31), a sliding telescopic base (32), a screw (33), a supporting connecting rod group (34), a positioning clamping portion (35), a first connecting rod slide (36), a second connecting rod slide (37) and an operating handle (38); The clamping base (31) is fixedly arranged on the working platform (61) of the supporting frame (6), and a sliding telescopic seat (32) is slidably arranged on the clamping base (31). The clamping base (31) and the sliding telescopic seat (32) are connected to each other through the screw (33), and an operating handle (38) is arranged on the screw (33); The sliding and telescopic seat (32) is provided with a first connecting rod slide seat (36) and a second connecting rod slide seat (37) capable of sliding laterally; The sliding telescopic seat (32) is provided with a plurality of supporting link groups (34), and the end of each supporting link group (34) is provided with a positioning clamping portion (35), and the other end of the supporting link group (34) is rotatably provided on the sliding telescopic seat (32), the first link slide (36) and the second link slide (37); By lateral sliding of the first connecting rod slide (36) and the second connecting rod slide (37), the longitudinal clamping positions of the plurality of positioning clamping portions (35) at the ends of the supporting connecting rod group (34) can be changed, thereby being able to adapt to different external shapes of the compressor cylinder seat (1).

2. A refrigeration compressor cylinder block testing device according to claim 1, characterized in that: The supporting link group (34) includes a first link (341), a second link (342), a third link (343), a fourth link (344), a fifth link (345), and a sixth link (346); The positioning clamping portion (35) comprises a first positioning block (351), a second positioning block (352), and a third positioning block (353); One end of the first connecting rod (341) is rotatably disposed on one side of the sliding telescopic seat (32), and the other end of the first connecting rod (341) is rotatably disposed on the first positioning block (351); One end of the second connecting rod (342) is rotatably disposed on the first connecting rod slide (36), and the other end of the second connecting rod (342) is rotatably disposed on the first positioning block (351); One end of the third connecting rod (343) is rotatably disposed on the first connecting rod slide (36), and the other end of the third connecting rod (343) is rotatably disposed on the second positioning block (352); One end of the fourth connecting rod (344) is rotatably disposed on the second connecting rod slide (37), and the other end of the fourth connecting rod (344) is rotatably disposed on the second positioning block (352); One end of the fifth connecting rod (345) is rotatably disposed on the second connecting rod slide (37), and the other end of the fifth connecting rod (345) is rotatably disposed on the third positioning block (353); One end of the sixth connecting rod (346) is rotatably disposed on the sliding telescopic seat (32), and the other end of the sixth connecting rod (346) is rotatably disposed on the third positioning block (353).

3. A refrigeration compressor cylinder block testing device according to claim 2, characterized in that: The crankshaft (2) includes a long shaft (21), a balancing plate (22), and a rotating shaft (23). The long shaft (21) passes through the compressor cylinder seat (1) and is connected to the clamping portion (72) of the driving structure (7). The long shaft (21) is driven to rotate by the driving motor (71). The other end of the long shaft (21) is provided with a balancing plate (22). The balancing plate (22) is provided with a rotating shaft (23). A connecting rod is rotatably mounted on the rotating shaft (23). The driving motor (71) is installed below the working platform (61) through the motor support frame (62). The compressor cylinder base (1) further includes a stator mounting foot (11) and a cylinder fixing groove (14), and the compressor cylinder (4) further includes an end cover mounting portion (43). The cylinder barrel (41) is detachably fixedly mounted in the cylinder fixing groove (14) via a positioning pin (42), and the distance between the cylinder barrel (41) and the crankshaft (2) can be changed.

4. A refrigeration compressor cylinder block testing device according to claim 3, characterized in that: The cylinder clamping mechanism (5) comprises a sliding guide rail (51), a sliding base (52), an inner support clamping portion (53) and an operating portion (54); The sliding guide rail (51) is fixedly arranged on the working platform (61), the sliding base (52) is slidably arranged on the sliding guide rail (51), and the sliding base (52) is provided with an inner support clamping portion (53) and an operating portion (54); The position and movement trajectory of the inner support clamping portion (53) are adapted to the cylinder seat clamping mechanism (3) to ensure the relative positions of the compressor cylinder (4) and the compressor cylinder seat (1) as well as the compressor cylinder (4) and the crankshaft (2); The cylinder hole (46) of the compressor cylinder (4) is clamped from the inside by the inner support clamping portion (53), so as to be adaptable to the outer shape of the compressor cylinder (4) with a degassing portion and a heat dissipation portion having different structures; The compressor cylinder (4) that is clamped and positioned is moved along the central axis of the compressor cylinder seat (1) by means of the sliding guide rail (51) and the sliding base (52) to complete the positioning installation.

5. The refrigeration compressor cylinder seat testing device according to claim 4, characterized in that: The inner support clamping portion (53) comprises an inner support base (531), a first support plate (532), a second support plate (533), a driving rack (534), a driving wheel (535), a swing arm (536), a sliding block (537) and a guide limit portion (538); The inner support base (531) is fixed on the sliding base (52), and a driving rack (534) is slidably provided in the sliding base (52). The driving rack (534) is controlled by the operating part (54) to slide along the longitudinal extension of the sliding base (52). The sliding base (52) is slidably provided with a first support plate (532) and a second support plate (533) through a guide limit part. The first support plate (532) and the second support plate (533) are located on both sides of the inner support base (531). The first support plate (532) and the second support plate (533) can slide horizontally on the sliding base (52) under the constraint of the guide limit part. The first support plate (532) and the second support plate (533) are provided with longitudinal limiting grooves, and a plurality of sliding blocks (537) are provided in the limiting grooves. The sliding blocks (537) are rotatably connected to the swing arm (536). The other end of the swing arm (536) is provided with a driving wheel (535) capable of synchronous rotation, and the driving wheel (535) is engaged with the driving rack (534); By driving the rack (534) to slide longitudinally, the swing arm (536) is driven to rotate, thereby changing the lateral distance between the first support plate (532) and the second support plate (533) and the inner support base (531), and the first support plate (532) and the second support plate (533) abut against and clamp the inside of the cylinder hole (46) of the compressor cylinder (4).

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