Air conditioning compressor piston hemisphere clearance detection equipment

Abstract

The present invention provides an air-conditioning compressor piston hemispherical gap detection device, which relates to the field of gap measurement technology and includes a base. A propulsion assembly is provided on the top of the base. The propulsion assembly includes a first electric push rod. A vertical plate is fixed to the extended end of the first electric push rod, and the first electric push rod is installed on the base. Compared with the prior art, the propulsion assembly is connected to the connecting rod of the piston. The detection assembly adjusts the detection range according to the size of the piston and the piston cavity, so that a long plate and a soft cushion are wrapped around the piston and the hemispherical body, and a clamp is clamped on the inner and outer walls of the piston cavity. During the movement, the gap between the piston and the inner wall of the piston cavity can be detected according to the change in the distance between the clamp and the long plate. The long plate can be rotated to perform multi-point detection, and the distance from the hemispherical body to the inner wall of the piston cavity can also be measured, thereby improving the accuracy of the gap measurement. The device is easy to adjust and is suitable for use with piston-type piston cavities of air-conditioning compressors of different models.

Description

Technical Field

[0001] The invention relates to the technical field of gap measurement, in particular to a device for detecting the gap of a hemispherical piston of an air-conditioning compressor. Background Art

[0002] ‌Air conditioning compressor piston hemisphere‌ refers to one of the key components used to compress refrigerant gas in air conditioning compressors. The piston hemisphere is usually made of steel and has a hemispherical structure. Its function is to compress low-temperature and low-pressure refrigerant gas through the reciprocating motion of the piston, thereby producing high-temperature and high-pressure refrigerant gas. ‌Hemispherical design‌: The piston hemisphere usually has a hemispherical structure. This design helps to form an effective seal and compression effect during the compression process. In air compressors, the gap between the piston and the piston cavity is crucial. This gap needs to be small enough to reduce gas leakage and improve compression efficiency; at the same time, it must be large enough to avoid friction between the piston and the piston cavity wall during operation, causing wear and damage. The size of the gap depends on many factors, including the design of the compressor, the working pressure, the materials of the piston and the piston cavity, etc. In order to keep the gap between the piston and the piston cavity in the best state, it needs to be checked and adjusted regularly. If the gap is too large, it may cause serious gas leakage and reduce the efficiency of the compressor; if the gap is too small, it may increase friction and wear and shorten the service life of the compressor.

[0003] In addition to manual measurement of the gap, the prior art also uses a micrometer to measure the gap. The piston cavity needs to be fixed on a rectification test bench, and the detection end of the micrometer is inserted into the gap between the piston and the piston cavity. The detection is performed as the piston moves. In this process, the detection point is relatively limited, and it is not convenient to measure the distance from the semi-sphere to the inner wall of the piston cavity. For different types of piston-type piston cavities, the sizes of the piston cavity and the piston are different, and the position of the detection equipment needs to be adjusted, which is more troublesome to implement. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an air-conditioning compressor piston hemisphere gap detection device to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure, and the propulsion assembly is connected to the connecting rod of the piston. The detection assembly adjusts the detection range according to the size of the piston and the piston cavity, so that the long plate and the soft cushion are wrapped on the piston and the hemisphere, and the clamping plate is clamped on the inner and outer walls of the piston cavity. During the movement, the gap between the piston and the inner wall of the piston cavity can be detected according to the change in the distance between the clamping plate and the long plate. The long plate can be rotated for multi-point detection, and the distance from the hemisphere to the inner wall of the piston cavity can also be measured, thereby improving the accuracy of the gap measurement. The device is easy to adjust and is suitable for use with piston cavities of air-conditioning compressors of different models.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an air-conditioning compressor piston hemispherical gap detection device, including a base, a propulsion assembly is provided on the top of the base, the propulsion assembly includes a first electric push rod, a vertical plate is fixed to the extended end of the first electric push rod, and the first electric push rod is installed on the base, a clamping frame is provided on the surface of the vertical plate, and locking bolts are inserted at positions on both sides of the vertical plate corresponding to the clamping frame, a piston cavity is provided on the top of the first electric push rod, and a piston body is inserted in the piston cavity, a semi-circular sphere is fixed to one end of the piston body, and the other end of the piston body A connecting rod is installed, and the connecting rod can be inserted into the clamp frame. A detection component is provided at the other end of the base corresponding to the piston cavity. The detection component includes a disc, and four long plates are equidistantly provided on the surface of the disc, and a semicircular cushion is fixed to the front end of the long plate, and the cushion is wrapped on the surface of the semi-sphere, and the long plate is in contact with the outer wall of the piston body. Movable grooves are provided on the surfaces of the long plate and the cushion, and a slide plate is slidably connected inside the movable groove of the long plate, and a plug column is slidably inserted on the surface of the slide plate, and two clamps are symmetrically slidably sleeved on the surface of the plug column, and the clamps are respectively clamped on the outer wall and inner wall of the piston cavity.

[0006] Furthermore, a mounting frame is fixed on the top of the base located at the piston cavity, and a bidirectional electric push rod is fixed on the top of the mounting frame. Clamping blocks are fixed on the two extended ends of the bidirectional electric push rod, and the clamping blocks are clamped on both sides of the piston cavity.

[0007] Furthermore, the propulsion assembly also includes a slide rail, the base is located at the bottom of the disc and is fixed with a slide rail, and a slide seat is slidably connected inside the slide rail, the disc is rotatably clamped on the top of the slide seat, telescopic plates are fixed on both sides of the vertical plate, and the extended ends of the telescopic plates are fixedly connected to both sides of the slide seat, and a positioning bolt is threadedly inserted at the storage end port of the telescopic plate, and the positioning bolt is in extrusion contact with the extended end of the telescopic plate.

[0008] Furthermore, the detection component also includes a mounting seat, the back side of the sliding seat is fixed with the mounting seat, and the surface of the mounting seat is fixed with a motor, a turntable is fixed with the output end of the motor, and the centers of the turntable and the disc are on the same straight line, and the turntable and the disc are fixedly connected at a distance via a connecting column.

[0009] Furthermore, a rotating column is rotatably installed at the center of the disk, and a fixing bolt is threadedly inserted into the rotating column through the back of the disk, and the fixing bolt can be pressed and contacted with the back of the disk.

[0010] Furthermore, a slide groove is opened on the front side of the disc at the positions corresponding to the four long boards, and a slider is slidably connected inside the slide groove, the slider is fixedly connected to the long board, a connecting plate is rotatably connected to the surface of the rotating column via a rotating shaft, and the other end of the connecting plate is rotatably connected to the slider via a rotating shaft.

[0011] Furthermore, a bidirectional screw is rotatably installed at the middle position of the plug column through a bearing seat, and the two clamping plates are threadedly sleeved on the two ends of the bidirectional screw. A limiting frame is fixed to the outer end of the clamping plate on the inner wall of the piston cavity, and a plug plate is slidably inserted inside the limiting frame.

[0012] Furthermore, a horizontal plate is fixed on the top of the plug plate, a second electric push rod is fixed on the outer side of the sliding block, and an extended end of the second electric push rod is fixedly connected to the other end of the horizontal plate.

[0013] Furthermore, a telescopic connecting frame is fixed to the bottom of the plug board, a contact head is fixed to the other end of the telescopic connecting frame, and the contact head is in sliding contact with the semi-sphere, side grooves are opened on both sides of the moving groove of the soft pad, and both sides of the contact head slide along the side grooves.

[0014] Furthermore, displacement sensors are installed on the clamping plate and the top of the plug plate on the inner wall of the piston cavity.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention detects the vertical displacement change of the clamping plate and the long plate through the displacement sensor of the clamping plate on the inner wall of the piston cavity, and detects the gap between the piston body and the inner wall of the piston cavity. In this process, because the adjustment of the long plate depends on the slider, the slider will also synchronously drive the plug plate to move, and the contact head at the other end of the telescopic connecting frame at the bottom of the plug plate contacts the surface of the semi-spherical body. The position of the plug plate can be adjusted through the cross plate through the second electric push rod, and the plug plate drives the telescopic connecting frame and the contact head to move through the limit frame. Because the two sides of the contact head contact the side grooves of the soft cushion, the contact head can always maintain contact with the surface of the semi-spherical body. Through the lateral telescopic adjustment of the telescopic connecting frame and the vertical position adjustment of the plug plate, the displacement sensor on the top of the plug plate can detect the distance from any position on the surface of the semi-spherical body to the inner wall of the piston cavity.

[0017] 2. The rotating column of the present invention can drive the four connecting plates to rotate when rotating, pull the slider to slide along the slide groove, and then adjust the positions of the four long plates at the same time, and take the rotating column as the center of the circle, so as to facilitate adjustment according to the outer diameter of the piston body. After determining that the long plate is in contact with the outer surface of the piston body, the rotating column is locked by the fixing bolt. It is suitable for detecting the internal clearance of piston cavities of various models. The soft pad at the front end of the long plate is made of elastic rubber material, which can be deformed by its own elasticity when the long plate moves, and wrapped on the outer surface of the semi-sphere, and the contact head and the side groove are in contact and cannot move due to the deformation of the soft pad.

[0018] 3. The present invention fixes the piston cavity through a bidirectional electric push rod and a clamp block, and locks the connecting rod and the clamp frame through the clamp block and the locking bolt. Driven by the first electric push rod, the vertical plate pushes the connecting rod and the piston body to move back and forth along the inside of the piston cavity. In this process, the connection of the telescopic plate can drive the slide seat to slide synchronously along the slide rail, thereby maintaining the synchronization of the movement of the detection component and the piston body, and performing mobile measurement on the gap between the piston body and the piston cavity. The vertical plate is connected to the slide seat through the telescopic plate, and the outer end of the telescopic plate is also provided with a positioning bolt to fix the length of the telescopic plate. This structure can facilitate the gap detection of the front end of the piston cavity of piston type with different lengths, and at the same time facilitate the adjustment of the position of the detection component.

[0019] 4. Compared with the prior art, the propulsion assembly of the present invention is connected to the connecting rod of the piston, and the detection assembly adjusts the detection range according to the size of the piston and the piston cavity, so that the long plate and the soft cushion are wrapped on the piston and the semi-sphere, and the clamping plate is clamped on the inner and outer walls of the piston cavity. During the movement, the gap between the piston and the inner wall of the piston cavity can be detected according to the change in the distance between the clamping plate and the long plate. The long plate can be rotated for multi-point detection, and the distance from the semi-sphere to the inner wall of the piston cavity can also be measured, thereby improving the accuracy of the gap measurement. The device is easy to adjust and is suitable for use with piston cavities of different models of air-conditioning compressors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0021] Figure 2 A schematic diagram of the connection between a propulsion assembly and a piston of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0022] Figure 3 A schematic diagram of the connection between a propulsion component and a detection component of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a detection component of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0024] Figure 5 A schematic diagram of the disc surface structure of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0025] Figure 6 A schematic diagram of the connection between a long plate and a soft pad of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a detection component of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0027] Figure 8A schematic diagram of the soft pad surface structure of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0028] Fig. 9 It is a schematic diagram of the contact between the back of a disc and the fixing bolt of an air-conditioning compressor piston hemispherical clearance detection device of the present invention;

[0029] Fig.10 The present invention is a schematic diagram of the internal structure of a piston cavity of an air-conditioning compressor piston hemisphere clearance detection device.

[0030] In the figure: 1, base; 11, mounting frame; 12, two-way electric push rod; 13, clamping block; 2, propulsion assembly; 21, first electric push rod; 22, vertical plate; 23, telescopic plate; 24, clamping frame; 25, locking bolt; 26, slide rail; 27, slide seat; 28, positioning bolt; 3, piston chamber; 31, connecting rod; 32, piston body; 33, semi-circular sphere; 4, detection assembly; 41, mounting seat; 42, motor; 43, turntable; 44, disc; 45. Rotating column; 46. Fixing bolt; 47. Long board; 48. Cushion; 49. Slide groove; 410. Sliding block; 411. Second electric push rod; 412. Horizontal board; 413. Connecting plate; 414. Moving groove; 415. Telescopic connecting frame; 416. Slide plate; 417. Inserting column; 418. Bidirectional screw; 419. Clamping plate; 420. Limiting frame; 421. Inserting plate; 422. Displacement sensor; 423. Contact head; 424. Side groove. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] See also Figures 1 to 10The present invention provides a technical solution: an air-conditioning compressor piston hemispherical clearance detection device, comprising a base 1, a propulsion assembly 2 is provided on the top of the base 1, the propulsion assembly 2 comprises a first electric push rod 21, a vertical plate 22 is fixed to the elongated end of the first electric push rod 21, and the first electric push rod 21 is installed on the base 1, a clamping frame 24 is provided on the surface of the vertical plate 22, and locking bolts 25 are inserted at positions on both sides of the vertical plate 22 corresponding to the clamping frame 24, and a piston cavity 3 is provided on the top of the first electric push rod 21 , and a piston body 32 is inserted into the piston cavity 3, a semi-spherical body 33 is fixed at one end of the piston body 32, and a connecting rod 31 is installed at the other end of the piston body 32, and the connecting rod 31 can be inserted into the clamp frame 24, and the other end of the base 1 corresponding to the piston cavity 3 is provided with a detection component 4, and the detection component 4 includes a disc 44, and four long plates 47 are equidistantly arranged on the surface of the disc 44, and a semi-circular soft pad 48 is fixed at the front end of the long plate 47, and the soft pad 48 is wrapped on the surface of the semi-spherical body 33, and the long plate 4 7 contacts the outer wall of the piston body 32, the surfaces of the long plate 47 and the soft pad 48 are provided with a moving groove 414, and the moving groove 414 of the long plate 47 is slidably connected with a slide plate 416, the surface of the slide plate 416 is slidably plugged with a plug post 417, and the surface of the plug post 417 is symmetrically slidably sleeved with two clamping plates 419, and the clamping plates 419 are clamped on the outer wall and the inner wall of the piston chamber 3 respectively. The piston chamber 3 and the piston body 32 in the device are part of the structure of the air conditioner compressor. When the device is used, the piston chamber 3 is installed After that, the connecting rod 31 at the rear end of the piston body 32 is connected to the propulsion component 2, and after the detection component 4 is in contact with the outer diameter of the piston body 32 and the semi-spherical body 33, the piston body 32 moves back and forth inside the piston chamber 3, and the detection component 4 detects the gap between the outer edge of the piston body 32 and the inner wall of the piston chamber 3, and also detects the distance from any point on the surface of the semi-spherical body 33 to the inner wall of the piston chamber 3, so as to check whether there is a position where the gap changes on the moving path, wherein the piston body 32 and the semi-spherical body 33 form a complete piston, such as Fig.10 As shown, the piston body 32 itself is cylindrical, similar to the inner diameter of the piston chamber 3, and reciprocates in the piston chamber 3. In simple terms, a complete front end of the piston is made into a spherical structure.

[0033] In this embodiment, the base 1 is located at the top of the piston chamber 3 and is fixed with a mounting frame 11, and a bidirectional electric push rod 12 is fixed on the top of the mounting frame 11, and the two extended ends of the bidirectional electric push rod 12 are fixed with clamping blocks 13, and the clamping blocks 13 are clamped on both sides of the piston chamber 3. The propulsion assembly 2 also includes a slide rail 26, and the base 1 is located at the bottom of the disc 44 and is fixed with a slide rail 26, and a slide seat 27 is slidably connected inside the slide rail 26, and the disc 44 is rotatably clamped on the top of the slide seat 27, and telescopic plates 23 are fixed on both sides of the vertical plate 22, and the extended ends of the telescopic plates 23 are fixedly connected to both sides of the slide seat 27, and a positioning bolt 28 is threadedly inserted at the receiving end port of the telescopic plate 23, and the positioning bolt 28 is in compression contact with the extended end of the telescopic plate 23, and the piston chamber 3 is fixed by the bidirectional electric push rod 12 and the clamping block 13, and the connecting rod 31 is connected to the clamping block 13 and the locking bolt 25. The frame 24 is locked and connected. Driven by the first electric push rod 21, the vertical plate 22 pushes the connecting rod 31 and the piston body 32 to move back and forth along the inside of the piston chamber 3. In this process, the connection of the telescopic plate 23 can drive the slide seat 27 to slide synchronously along the slide rail 26, thereby maintaining the synchronization of the movement of the detection component 4 and the piston body 32, and performing movement measurement on the gap between the piston body 32 and the piston chamber 3. The vertical plate 22 is connected to the slide seat 27 through the telescopic plate 23. The outer end of the telescopic plate 23 also has a positioning bolt 28 to fix the length of the telescopic plate 23. This structure can facilitate the gap detection of the front end of the piston-type piston chamber 3 of different lengths, and at the same time facilitate the adjustment of the position of the detection component 4 (the vertical plate 22 is only connected to the first electric push rod 21 and is not fixedly connected to the base 1, so the bottom of the vertical plate 22 can be in sliding contact with the base 1, or it may not be in contact with the base 1, and the movement of the vertical plate 22 itself has nothing to do with the base 1).

[0034] In this embodiment, the detection component 4 also includes a mounting seat 41, the mounting seat 41 is fixed on the back of the slide 27, and a motor 42 is fixed on the surface of the mounting seat 41, a turntable 43 is fixed on the output end of the motor 42, and the center of the turntable 43 and the circular disk 44 are on the same straight line, the turntable 43 and the circular disk 44 are fixedly connected at a distance through a connecting column, the motor 42 drives the turntable 43 to rotate, and the turntable 43 drives the circular disk 44 to rotate, and then the positions of the four long plates 47 change, so that the gap measurement of different points on the circumference of the piston body 32 can be realized.

[0035] In this embodiment, a rotating column 45 is rotatably installed at the center of the disk 44, and a fixing bolt 46 is threadedly inserted into the rotating column 45 through the back of the disk 44, and the fixing bolt 46 can be squeezed and contacted with the back of the disk 44. A slide groove 49 is opened on the front of the disk 44 at the position corresponding to the four long plates 47, and a slider 410 is slidably connected inside the slide groove 49. The slider 410 is fixedly connected to the long plate 47. A connecting plate 413 is rotatably connected to the surface of the rotating column 45 through a rotating shaft, and the other end of the connecting plate 413 is rotatably connected to the slider 410 through a rotating shaft. The rotating column 45 can drive the four connecting plates 413 to rotate when rotating. The slider 410 is pulled to slide along the slide groove 49, thereby adjusting the positions of the four long plates 47 at the same time, and taking the rotating column 45 as the center of the circle, it is convenient to adjust according to the outer diameter of the piston body 32. After determining that the long plate 47 is in contact with the outer surface of the piston body 32, the rotating column 45 is locked by the fixing bolt 46, which is suitable for detecting the internal clearance of various types of piston chambers 3. The soft pad 48 at the front end of the long plate 47 is made of elastic rubber material, which can be deformed by its own elasticity when the long plate 47 moves, and wrapped on the outer surface of the semi-sphere 33, and the contact head 423 and the side groove 424 The contact cannot move due to the deformation of the soft pad 48. Fig. 9 As shown, the rotating column 45 passes through the rear end of the disc 44 and is threaded with a fixing bolt 46, and one end of the fixing bolt 46 is in squeeze contact with the back side of the disc 44. In this way, the rotating column 45 is positioned so that it cannot continue to rotate, thereby maintaining the position of the front slider 410 and the long plate 47 of the disc 44.

[0036] In this embodiment, a bidirectional screw 418 is rotatably installed at the middle position of the plug column 417 through a bearing seat, and the two clamping plates 419 are threadedly sleeved on the two ends of the bidirectional screw 418. The outer end of the clamping plate 419 on the inner wall of the piston chamber 3 is fixed with a limit frame 420, and a plug-in plate 421 is slidably inserted inside the limit frame 420, and a cross plate 412 is fixed to the top of the plug-in plate 421. A second electric push rod 411 is fixed to the outside of the slider 410, and the extended end of the second electric push rod 411 is fixedly connected to the other end of the cross plate 412, and a telescopic connecting frame 415 is fixed to the bottom of the plug-in plate 421, and the other end of the telescopic connecting frame 415 is fixed A contact head 423 is fixed, and the contact head 423 is in sliding contact with the semi-circular sphere 33. Side grooves 424 are opened on both sides of the moving groove 414 of the soft pad 48, and the two sides of the contact head 423 slide along the side grooves 424. The clamping plate 419 on the inner wall of the piston chamber 3 and the top of the plug plate 421 are both installed with a displacement sensor 422. After the positions of the four long plates 47 are determined, the plug column 417 is moved along the slide plate 416, and the positions of the two clamping plates 419 correspond to the inner and outer walls of the piston chamber 3. The bidirectional screw 418 is rotated, and the two clamping plates 419 are threadedly matched with it and clamped on the inner and outer walls of the port of the piston chamber 3. At this time, the position of the clamping plate 419 is fixed, and the long plate The position of 47 corresponds to the outer edge of the piston body 32. When the piston body 32 moves along the inside of the piston chamber 3 with the pushing assembly, the detection assembly 4 moves synchronously, and the slide plate 416 slides along the moving groove 414 of the long plate 47, so that the position of the clamping plate 419 remains unchanged. During the movement, the displacement sensor 422 of the clamping plate 419 on the inner wall of the piston chamber 3 detects the vertical displacement change of the clamping plate 419 and the long plate 47, and detects the gap between the piston body 32 and the inner wall of the piston chamber 3. In this process, because the adjustment of the long plate 47 depends on the slider 410, the slider 410 will also synchronously drive the plugging plate 421 to move, and the other end of the telescopic connecting frame 415 at the bottom of the plugging plate 421 is connected The contact 423 is in contact with the surface of the semi-sphere 33. The position of the plug plate 421 can be adjusted through the second electric push rod 411 through the horizontal plate 412. The plug plate 421 drives the telescopic connecting frame 415 and the contact head 423 to move through the limit frame 420. Because the two sides of the contact head 423 are in contact with the side grooves 424 of the soft pad 48, the contact head 423 can always maintain contact with the surface of the semi-sphere 33. Through the lateral telescopic adjustment of the telescopic connecting frame 415 and the vertical position adjustment of the plug plate 421, the displacement sensor 422 on the top of the plug plate 421 can detect the distance from any position on the surface of the semi-sphere 33 to the inner wall of the piston chamber 3.

[0037] When the device is used, the piston chamber 3 is fixed by the bidirectional electric push rod 12 and the clamping block 13, and the connecting rod 31 is locked and connected with the clamping frame 24 by the clamping block 13 and the locking bolt 25. Driven by the first electric push rod 21, the vertical plate 22 pushes the connecting rod 31 and the piston body 32 to move back and forth along the inside of the piston chamber 3. In this process, the connection of the telescopic plate 23 can drive the slide seat 27 to slide synchronously along the slide rail 26, thereby maintaining the synchronization of the movement of the detection component 4 and the piston body 32, and performing movement detection on the gap between the piston body 32 and the piston chamber 3. When the rotating column 45 rotates, it can drive the four connecting plates 413 to rotate, pull the slider 410 to slide along the slide groove 49, and then The positions of the four long plates 47 are adjusted at the same time, and the rotating column 45 is used as the center of the circle, so as to facilitate adjustment according to the outer diameter of the piston body 32. After determining that the long plate 47 is in contact with the outer surface of the piston body 32, the rotating column 45 is locked by the fixing bolt 46, which is suitable for detecting the internal clearance of piston cavities 3 of various sizes. After the positions of the four long plates 47 are determined, the plug column 417 is moved along the slide plate 416, and the positions of the two clamping plates 419 correspond to the inner and outer walls of the piston cavity 3, and the bidirectional screw 418 is rotated, and the two clamping plates 419 are threadedly matched with it and clamped on the inner and outer walls of the port of the piston cavity 3. At this time, the position of the clamping plate 419 is fixed, and the position of the long plate 47 is aligned with the outer edge of the piston body 32. Correspondingly, when the piston body 32 moves along the inside of the piston chamber 3 with the pushing assembly, the detection assembly 4 moves synchronously, the slide plate 416 slides along the moving groove 414 of the long plate 47, and the position of the clamping plate 419 remains unchanged. During the movement, the displacement sensor 422 of the clamping plate 419 on the inner wall of the piston chamber 3 detects the vertical displacement change of the clamping plate 419 and the long plate 47, and detects the gap between the piston body 32 and the inner wall of the piston chamber 3. In this process, because the adjustment of the long plate 47 depends on the slider 410, the slider 410 will also synchronously drive the plug plate 421 to move, and the contact head 423 at the other end of the telescopic connecting frame 415 at the bottom of the plug plate 421 contacts the surface of the semi-sphere 33. The position of the plug plate 421 can be adjusted through the second electric push rod 411 via the cross plate 412, and the plug plate 421 drives the telescopic connecting frame 415 and the contact head 423 to move through the limit frame 420. Because the two sides of the contact head 423 are in contact with the side grooves 424 of the soft pad 48, the contact head 423 can always maintain contact with the surface of the semi-sphere 33. Through the lateral telescopic adjustment of the telescopic connecting frame 415 and the vertical position adjustment of the plug plate 421, the displacement sensor 422 on the top of the plug plate 421 can detect the distance from any position on the surface of the semi-sphere 33 to the inner wall of the piston chamber 3, so as to check whether there is a position where the gap changes on the moving path.

[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An air-conditioning compressor piston hemispherical clearance detection device, comprising a base (1), characterized in that: A propulsion assembly (2) is provided on the top of the base (1), and the propulsion assembly (2) comprises a first electric push rod (21), a vertical plate (22) is fixed to the extended end of the first electric push rod (21), and the first electric push rod (21) is mounted on the base (1), a clamping frame (24) is provided on the surface of the vertical plate (22), and locking bolts (25) are inserted at positions on both sides of the vertical plate (22) corresponding to the clamping frame (24), a piston cavity (3) is provided on the top of the first electric push rod (21), and a piston body (32) is inserted in the piston cavity (3), a semi-spherical body (33) is fixed to one end of the piston body (32), and a connecting rod (31) is installed at the other end of the piston body (32), and the connecting rod (31) can be inserted in the clamping frame (24), and the base (1) corresponds to the piston cavity (3 ) is provided at the other end thereof, the detection assembly (4) comprising a disc (44), four long plates (47) being equidistantly provided on the surface of the disc (44), and a semicircular soft pad (48) being fixed at the front end of the long plate (47), the soft pad (48) being wrapped around the surface of the semi-sphere (33), and the long plate (47) being in contact with the outer wall of the piston body (32), a movable groove (414) being provided on the surface of both the long plate (47) and the soft pad (48), and a slide plate (416) being slidably connected inside the movable groove (414) of the long plate (47), a plug post (417) being slidably inserted on the surface of the slide plate (416), and two clamping plates (419) being symmetrically slidably sleeved on the surface of the plug post (417), and the clamping plates (419) being clamped on the outer wall and the inner wall of the piston chamber (3), respectively.

2. The air-conditioning compressor piston hemispherical clearance detection device according to claim 1, characterized in that: The base (1) is located at the top of the piston chamber (3) and is fixed with a mounting frame (11), and a bidirectional electric push rod (12) is fixed on the top of the mounting frame (11), and clamping blocks (13) are fixed to two extended ends of the bidirectional electric push rod (12), and the clamping blocks (13) are clamped on both sides of the piston chamber (3).

3. The air-conditioning compressor piston hemispherical clearance detection device according to claim 1, characterized in that: The propulsion assembly (2) further comprises a slide rail (26), the base (1) being located at the bottom of the disc (44) and being fixed with the slide rail (26), and a slide seat (27) being slidably connected inside the slide rail (26), the disc (44) being rotatably clamped on the top of the slide seat (27), telescopic plates (23) being fixed on both sides of the vertical plate (22), and the extended ends of the telescopic plates (23) being fixedly connected to both sides of the slide seat (27), and a positioning bolt (28) being threadedly inserted at the receiving end port of the telescopic plate (23), and the positioning bolt (28) being in extrusion contact with the extended end of the telescopic plate (23).

4. The air-conditioning compressor piston hemispherical clearance detection device according to claim 3, characterized in that: The detection assembly (4) further comprises a mounting seat (41), the mounting seat (41) being fixed on the back of the slide seat (27), and a motor (42) being fixed on the surface of the mounting seat (41), a rotating disk (43) being fixed on the output end of the motor (42), and the centers of the rotating disk (43) and the circular disk (44) being on the same straight line, and the rotating disk (43) and the circular disk (44) being fixedly connected at a distance via a connecting column.

5. The air-conditioning compressor piston hemispherical clearance detection device according to claim 4, characterized in that: A rotating column (45) is rotatably mounted at the center of the circular disk (44). The rotating column (45) passes through the back of the circular disk (44) and is threadedly plugged with a fixing bolt (46). The fixing bolt (46) can be in extrusion contact with the back of the circular disk (44).

6. The air-conditioning compressor piston hemispherical clearance detection device according to claim 5, characterized in that: A slide groove (49) is provided on the front side of the disk (44) at positions corresponding to the four long plates (47), and a slider (410) is slidably connected inside the slide groove (49), and the slider (410) is fixedly connected to the long plates (47). A connecting plate (413) is rotatably connected to the surface of the rotating column (45) via a rotating shaft, and the other end of the connecting plate (413) is rotatably connected to the slider (410) via a rotating shaft.

7. The air-conditioning compressor piston hemispherical clearance detection device according to claim 6, characterized in that: A bidirectional screw (418) is rotatably mounted at the middle position of the plug post (417) via a bearing seat, and the two clamping plates (419) are threadedly sleeved on the two ends of the bidirectional screw (418). A limit frame (420) is fixed to the outer end of the clamping plate (419) on the inner wall of the piston chamber (3), and a plug plate (421) is slidably inserted into the interior of the limit frame (420).

8. The air-conditioning compressor piston hemispherical clearance detection device according to claim 7, characterized in that: A transverse plate (412) is fixed on the top of the plug plate (421), a second electric push rod (411) is fixed on the outside of the sliding block (410), and an extended end of the second electric push rod (411) is fixedly connected to the other end of the transverse plate (412).

9. The air-conditioning compressor piston hemispherical clearance detection device according to claim 8, characterized in that: A telescopic connecting frame (415) is fixed to the bottom of the plug plate (421), a contact head (423) is fixed to the other end of the telescopic connecting frame (415), and the contact head (423) is in sliding contact with the semi-spherical body (33), and side grooves (424) are provided on both sides of the movable groove (414) of the soft pad (48), and the two sides of the contact head (423) slide along the side grooves (424).

10. The air-conditioning compressor piston hemispherical clearance detection device according to claim 9, characterized in that: Displacement sensors (422) are installed on the clamping plate (419) and the top of the plug plate (421) on the inner wall of the piston chamber (3).

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