Crankshaft clamp device of air conditioner compressor
By combining the design of the clamping base and the limiting components, the problem of poor limiting of the existing air conditioning compressor crankshaft clamping device is solved, realizing multi-point fixing and stable clamping of the crankshaft, and adapting to the installation requirements of different crankshaft models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-13
AI Technical Summary
The existing crankshaft clamping device for air conditioning compressors has a simple structure and poor limiting and clamping effect, which cannot meet the clamping requirements of crankshafts of different models and sizes.
The design employs a combination of clamping base, pressure assembly, and limiting assembly, including guide chute, rolling shaft, support roller, guide slide, structural strut, electric cylinder, and motor, to achieve multi-point limiting and fixing of the crankshaft.
It improves the installation firmness and clamping stability of the crankshaft, adapts to the clamping requirements of different crankshaft models, and is easy to install.
Smart Images

Figure CN223989438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crankshaft clamping technology, and in particular to a crankshaft clamping device for air conditioning compressors. Background Technology
[0002] The crankshaft of an air conditioning compressor is a key component of the compressor. It is a rotating shaft, usually made of high-strength metal materials. The crankshaft ensures the precise fit between components such as pistons and valves, allowing the intake, compression, and exhaust processes to proceed in a specific sequence and at certain time intervals. A crankshaft clamping device is required during the machining of the air conditioning compressor crankshaft.
[0003] In the prior art, CN204053543U discloses a crankshaft clamping device for an air conditioner compressor, which mainly includes a crankshaft, a lower pressure block, and a clamping body. The clamping body is located below the crankshaft, and the lower pressure block is located above the clamping body. The crankshaft mainly includes a main journal, an eccentric large circle, an oil hole, and an oblique angle. The main journal has an eccentric large circle, and the crankshaft has an oil hole at its central axis. One end of the oil hole has an oblique angle at its outlet. The lower pressure block mainly includes a pressure plate shaft and a pressure plate. One end of the pressure plate shaft has a pressure plate at its top. The pressure plate is plate-shaped and has two sharp points. The pressure plate and the clamping body form three fixing points.
[0004] The existing crankshaft clamping device for air conditioning compressors has a simple structure, poor limiting and clamping effect on the crankshaft during use, and limited functionality, which cannot meet the clamping needs of crankshafts of different sizes and models. Therefore, an air conditioning compressor crankshaft clamping device is proposed to address the above problems. Utility Model Content
[0005] The problem solved by this utility model is to provide an air conditioner compressor crankshaft clamping device with a simple overall structure and convenient installation. In use, it can provide a good clamping and limiting effect on the crankshaft, and the clamping position can be adjusted according to the structural shape of the crankshaft to improve the clamping fit. At the same time, it can also fix one end of the crankshaft, so that the crankshaft is clamped and installed, effectively improving the installation firmness of the crankshaft.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An air conditioning compressor crankshaft clamping device includes a clamping base. A guide groove is provided in the center of the top end face of the clamping base, and a plurality of rollers are arranged in the center of the inside of the guide groove. Support rollers are sleeved on the outside of the rollers. A clamping component is provided on the outside of the guide groove on the end face of the clamping base, and the clamping component is located outside the support rollers. A limit groove is provided in the center of the other end face of the clamping base, and a limit component is arranged inside the limit groove.
[0008] The clamping assembly includes guide grooves. Four guide grooves are provided at both ends of the top of the clamping base, and a structural support rod is inserted into the interior of each guide groove. The top end of the structural support rod passes through the guide groove and is connected to an assembly top seat. A first electric cylinder is fixed to the outer side of the top of the assembly top seat, and a first piston push rod is installed on the inner end face of the first electric cylinder. One end of the first piston push rod passes through the assembly top seat and is connected to an adjusting frame. A first motor is fixed to the center of the outer end face of the adjusting frame, and a clamping pressure plate is installed through the adjusting frame. Several guide seats are fixedly installed at both ends of the bottom of the clamping base, and the guide seats are located outside the guide grooves. An adjusting tube is inserted between the guide seats. An adjusting lever is installed at the end of the adjusting tube away from the limiting groove, passing through the guide seat, and an anti-detachment seat is installed at the other end of the adjusting tube.
[0009] Furthermore, both ends of the inner wall of the guide groove are provided with arc-shaped anti-detachment grooves, and both ends of the structural support rod located on the outer wall of the guide groove are fixedly installed with anti-detachment sliders, and the outer walls of the two anti-detachment sliders are respectively fitted and connected to the inner walls of the two arc-shaped anti-detachment grooves; as the anti-detachment sliders slide inside the arc-shaped anti-detachment grooves, they can limit and guide the movement of the structural support rod, thereby improving the movement stability of the structural support rod.
[0010] Furthermore, a diagonal brace is fixedly installed on the other side of the top end face of the mounting base, and the top of the diagonal brace is fixedly connected to the bottom of the outer wall of the first electric cylinder; the diagonal brace supports the bottom of the first electric cylinder, thereby improving the structural stability of the first electric cylinder.
[0011] Furthermore, the limiting component includes a load-bearing base, which is disposed in the center of the limiting groove. Both outer ends of the load-bearing base are provided with mounting ears, and the top of the mounting ears is fixedly connected to the bottom end face of the clamping base. A second motor is fixedly mounted on the outer side of the mounting ears, and the motor shaft of the second motor passes through the mounting ears and is fixedly connected to the outer end face of the load-bearing base. Both top ends of the load-bearing base are fixedly mounted with second electric cylinders, and a second piston rod is mounted at the center of the top of each second electric cylinder. A guide rail frame is fixedly installed at the top of the two piston push rod, and an electric guide rail is fixedly installed at the top of the guide rail frame. A guide rail slide is connected to the top of the electric guide rail, and a vertical beam is fixedly installed at the top of the guide rail slide. A third electric cylinder is fixedly installed at the center of the outer end face of the vertical beam, and a third piston push rod is installed on the inner side of the third electric cylinder. One end of the third piston push rod passes through the vertical beam and is connected to a limit seat. By setting the limit component, one end of the crankshaft can be limited and fixed, effectively improving the installation firmness of the crankshaft.
[0012] Furthermore, a storage groove is provided in the center of the inner end face of the vertical beam frame, and the outer wall of the limiting top seat is fitted and connected to the inner wall of the storage groove; this facilitates the storage of the limiting top seat inside the storage groove and improves ease of use.
[0013] Furthermore, the inner wall of the guide groove is provided with bearing support grooves at both ends of the roller shaft, and the bearing support grooves are fixedly installed with mounting bearings. The two ends of the roller shaft are respectively inserted and installed in the center of the end face of the two mounting bearings; this facilitates the rotation adjustment of the roller shaft and the mounting bearings.
[0014] Furthermore, the bottom end face of the clamping base is fixedly installed with four mounting legs by welding, and the bottom end face of the mounting legs is provided with a mounting positioning hole in the center; after fasteners are used to pass through the mounting positioning hole of the mounting leg end face and connect to the mounting structure, the structure of the clamping base can be fixed, so that the mounting legs can provide fixed support for the clamping base.
[0015] The beneficial effects of this utility model are as follows: The air conditioner compressor crankshaft clamping device has a simple overall structure and is easy to install; during use, the setting of the roller shaft and support roller facilitates the placement and movement of the crankshaft, and the setting of the clamping component can provide a good clamping and limiting effect on the crankshaft. Furthermore, the clamping position can be adjusted according to the structural shape of the crankshaft to improve the clamping fit effect and facilitate the clamping of different crankshafts; at the same time, the setting of the limiting component can also fix one end of the crankshaft, so that the crankshaft is clamped and installed, which is convenient and effectively improves the installation firmness of the crankshaft. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the first overall structure of the present invention;
[0017] Figure 2 This is a schematic diagram of the second overall structure of the present invention;
[0018] Figure 3 This is the overall front view of the present invention;
[0019] Figure 4 for Figure 3 Schematic diagram of the cross section of AA;
[0020] Figure 5 This is an overall side view of the present invention;
[0021] Figure 6 for Figure 5 Cross-sectional view of BB;
[0022] Figure 7 This is a bottom view of the entire utility model.
[0023] Legend:
[0024] 1. Clamping base; 2. Guide chute; 3. Mounting bearing; 4. Roller shaft; 5. Support roller; 6. Limiting groove; 7. Pressing assembly; 8. Limiting assembly; 9. Mounting support; 71. Structural strut; 72. Guide slide; 73. Anti-detachment slider; 74. Assembly top seat; 75. First electric cylinder; 76. First piston push rod; 77. Adjusting frame; 78. First motor; 79. Clamping pressure plate; 710. Inclined... Support frame; 711, guide seat; 712, adjusting pipe; 713, adjusting lever; 714, anti-detachment seat; 81, load-bearing base; 82, mounting ear plate; 83, second motor; 84, second electric cylinder; 85, second piston push rod; 86, guide rail frame; 87, electric guide rail; 88, guide rail slide table; 89, vertical beam frame; 810, third electric cylinder; 811, third piston push rod; 812, limit top seat. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Specific implementation examples are given below.
[0027] See Figures 1 to 7 An air conditioning compressor crankshaft clamping device includes a clamping base 1. The clamping base 1 provides good crankshaft bearing capacity and can accommodate different crankshaft models. A guide groove 2 is provided at the center of the top end face of the clamping base 1, and several rollers 4 are arranged in the center of the guide groove 2. Support rollers 5 are sleeved on the outer side of the rollers 4. The support rollers 5 support and support the crankshaft, and as the support rollers 5 rotate on the outer side of the rollers 4, they facilitate the clamping of the crankshaft. The position is adjusted; a clamping component 7 is provided on the outer side of the guide groove 2 on the end face of the clamping base 1, and the clamping component 7 is located outside the support roller 5. The clamping component 7 facilitates the downward pressure and limiting of the outer wall of the crankshaft, so that the crankshaft is clamped and fixed on the top of the support roller 5; a limiting groove 6 is opened in the center of the other end face of the clamping base 1, and a limiting component 8 is provided inside the limiting groove 6. The limiting component 8 can limit one end of the crankshaft, thereby effectively improving the clamping and fixing effect of the crankshaft;
[0028] The clamping assembly 7 includes guide grooves 72. Four guide grooves 72 are provided at both ends of the top of the clamping base 1, and a structural support rod 71 is inserted into the interior of each guide groove 72. Arc-shaped anti-detachment grooves are provided at both ends of the inner wall of each guide groove 72. Anti-detachment sliders 73 are fixedly installed at both ends of the outer wall of each structural support rod 71 located within the guide groove 72, and the outer walls of the two anti-detachment sliders 73 are respectively fitted and connected to the inner walls of the two arc-shaped anti-detachment grooves. As the anti-detachment sliders 73 slide within the arc-shaped anti-detachment grooves, they can limit and guide the movement of the structural support rod 71, improving the stability of the structural support rod 71's movement. The top end of the structural support rod 71 passes through... A guide groove 72 is connected to an assembly top seat 74. A first electric cylinder 75 is fixed to the outer side of the top of the assembly top seat 74, and a first piston push rod 76 is installed on the inner end face of the first electric cylinder 75. A diagonal support frame 710 is fixedly installed on the other side of the top end face of the assembly top seat 74, and the top of the diagonal support frame 710 is fixedly connected to the bottom of the outer wall of the first electric cylinder 75. The diagonal support frame 710 supports the bottom of the first electric cylinder 75, improving the structural stability of the first electric cylinder 75. One end of the first piston push rod 76 passes through the assembly top seat 74 and is connected to an adjusting bracket 77. A first piston push rod 76 is fixed to the center of the outer end face of the adjusting bracket 77. A motor 78 is provided, and the motor shaft of the first motor 78 passes through the adjusting frame 77 and is connected to a clamping pressure plate 79. Several guide seats 711 are fixedly installed at both ends of the bottom of the clamping base 1, and the guide seats 711 are located outside the guide groove 72. An adjusting tube 712 is inserted between the guide seats 711. One end of the adjusting tube 712 away from the limiting groove 6 passes through the guide seat 711 and is connected to an adjusting paddle 713. The other end of the adjusting tube 712 passes through the guide seat 711 and is connected to an anti-detachment seat 714. In use, after the crankshaft is placed on top of multiple support rollers 5, the adjusting paddle 713 is pulled according to the shape of the crankshaft, so that the adjusting tube 712... The adjustment tube 712 moves between the guide seats 711. The anti-detachment seat 714 can limit the adjustment tube 712. When the adjustment tube 712 moves, it drives the structural support rod 71 to slide inside the guide groove 72, and makes the anti-detachment slider 73 slide with the arc-shaped anti-detachment groove, so that the structural support rod 71 slides stably and drives the assembly top seat 74 to move. At the same time, the first motor 78 on the outside of the adjustment frame 77 works, and drives the clamping pressure plate 79 to rotate to a suitable angle through the motor shaft. The first electric cylinder 75 works, and pushes the adjustment frame 77 to move through the first piston push rod 76 until the clamping pressure plate 79 fits against the outer wall of the crankshaft. The crankshaft is fixed by setting multiple sets of clamping pressure plates 79.
[0029] The limiting component 8 includes a load-bearing base 81, which is disposed in the center of the limiting groove 6. Mounting lugs 82 are provided at both ends of the load-bearing base 81, and the top of each mounting lug 82 is fixedly connected to the bottom end face of the clamping base 1. A second motor 83 is fixedly mounted on the outer side of each mounting lug 82, and the motor shaft of the second motor 83 passes through the mounting lug 82 and is fixedly connected to the outer end face of the load-bearing base 81. A second electric cylinder 84 is fixedly mounted at both ends of the top of the load-bearing base 81, and a second electric cylinder 84 is mounted at the center of its top. There are two second piston push rods 85. A guide rail frame 86 is fixedly installed on the top of the two second piston push rods 85, and an electric guide rail 87 is fixedly installed on the top of the guide rail frame 86. A guide rail slide 88 is connected to the top of the electric guide rail 87, and a vertical beam frame 89 is fixedly installed on the top of the guide rail slide 88. A third electric cylinder 810 is fixedly installed at the center of the outer end face of the vertical beam frame 89, and a third piston push rod 811 is installed on the inner side of the third electric cylinder 810. One end of the third piston push rod 811 passes through the vertical beam frame 89 and is connected to a limit seat 812. The vertical beam frame 89 has a storage groove in the center of its inner end face, and the outer wall of the limiting top seat 812 is fitted and connected to the inner wall of the storage groove; this facilitates the storage of the limiting top seat 812 inside the storage groove, improving ease of use; by setting the limiting component 8, one end of the crankshaft can be limited and fixed, effectively improving the installation firmness of the crankshaft; after the crankshaft is fixed to the top of the support roller 5 by the pressing component 7, the second motor 83 on the outside of the mounting ear plate 82 works, driving the load-bearing base 81 to rotate through the motor shaft, so that the top end face of the load-bearing base 81 is aligned with the clamping base 1. With the end faces flush, the second electric cylinder 84 operates, adjusting the height of the guide rail frame 86 via the second piston push rod 85, and sliding on the top of the electric guide rail 87 via the guide rail slide table 88, causing the limiting top seat 812 to move to the outside of one end of the crankshaft. After the limiting top seat 812 and the axis of the crankshaft are aligned, the third electric cylinder 810 operates, pushing the limiting top seat 812 out of the receiving groove via the third piston push rod 811 until the end face of the limiting top seat 812 is pressed and fixed against one end of the crankshaft, thereby achieving the limiting and fixing of the crankshaft, facilitating subsequent processing.
[0030] The inner wall of the guide groove 2 is provided with bearing support grooves at both ends of the roller shaft 4, and the bearing support grooves are fixedly installed with mounting bearings 3. The two ends of the roller shaft 4 are respectively inserted and installed in the center of the end face of the two mounting bearings 3; so as to facilitate the rotation adjustment of the roller shaft 4 and the mounting bearings 3.
[0031] The bottom end face of the clamping base 1 is fixedly installed with four mounting legs 9 by welding, and the bottom end face of the mounting legs 9 is provided with a mounting positioning hole in the center. After fasteners are used to pass through the mounting positioning hole on the end face of the mounting legs 9 and connect to the mounting structure, the structure of the clamping base 1 can be fixed, so that the mounting legs 9 can provide fixed support for the clamping base 1.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An air conditioner compressor crankshaft clamp device, characterized by, Including clamping base (1), the top end face of clamping base (1) is provided with guide chute (2) in the middle, and a plurality of roll shafts (4) are arranged in the middle of guide chute (2), the outer side of roll shaft (4) is provided with supporting carrier roller (5) installed in sleeve, the outer side of guide chute (2) of clamping base (1) is provided with compression solid component (7), and compression solid component (7) is located outside supporting carrier roller (5), the other side end face of clamping base (1) is provided with limiting groove (6) in the middle, and limiting groove (6) is provided with limiting component (8) in the inside, The compression solid component (7) includes guide chute (72), the top of clamping base (1) is provided with four guide chutes (72) in both ends, and each guide chute (72) is provided with structure support rod (71) installed in the inside, the top end of structure support rod (71) is connected with assembly top seat (74) installed through guide chute (72), the outer side of the top end of assembly top seat (74) is fixed with first electric cylinder (75), and the inner side end face of first electric cylinder (75) is provided with first piston push rod (76), one end of first piston push rod (76) is connected with adjusting rotary frame (77) installed through assembly top seat (74), the outer side end face of adjusting rotary frame (77) is fixed with first motor (78) in the middle, and the motor shaft of first motor (78) is connected with clamping pressure plate (79) installed through adjusting rotary frame (77), the bottom of clamping base (1) is fixedly provided with a plurality of guide seats (711) in both ends, and guide seat (711) is located outside guide chute (72), adjusting pipe (712) is inserted and connected between guide seat (711), one end of adjusting pipe (712) away from limiting groove (6) is connected with adjusting tab (713) installed through guide seat (711), and the other end of adjusting pipe (712) is connected with anti-dropping seat (714) installed through guide seat (711).
2. The air conditioner compressor crankshaft clamp apparatus of claim 1, wherein, The inner wall of guide chute (72) is provided with arc-shaped anti-dropping groove in both ends, and structure support rod (71) is fixedly provided with anti-dropping sliding block (73) on the outer wall of both ends of guide chute (72), and the outer wall of two anti-dropping sliding blocks (73) is respectively connected with the inner wall of two arc-shaped anti-dropping grooves.
3. The air conditioner compressor crankshaft clamp apparatus of claim 2, wherein, The top end of first electric cylinder (75) is fixedly connected with the outer wall bottom of first electric cylinder (75). The top end of first electric cylinder (75) is fixedly connected with the outer wall bottom of first electric cylinder (75).
4. The air conditioner compressor crankshaft clamp apparatus of claim 3, wherein, The limiting assembly (8) includes a bearing base (81), which is arranged in the inside center of the limiting groove (6), both ends of the outside of the bearing base (81) are provided with mounting lug plates (82), and the top end of the mounting lug plate (82) is fixedly connected with the bottom end face of the clamping base (1), the outside of the mounting lug plate (82) is fixedly installed with a second motor (83), and the motor shaft of the second motor (83) is fixedly connected with the outside end face of the bearing base (81) through the mounting lug plate (82), both ends of the top of the bearing base (81) are fixedly installed with second electric cylinders (84), and the top end of the second electric cylinder (84) is fixedly installed with a second piston push rod (85), the top end of the two second piston push rods (85) is fixedly installed with a guide rail rack (86), and the top end of the guide rail rack (86) is fixedly installed with an electric guide rail (87), the top of the electric guide rail (87) is connected and installed with a guide rail sliding table (88), and the top end of the guide rail sliding table (88) is fixedly installed with a vertical beam frame (89), the outside end face of the vertical beam frame (89) is fixedly installed with a third electric cylinder (810) in the center, and the inside of the third electric cylinder (810) is installed with a third piston push rod (811), one end of the third piston push rod (811) is connected and installed with a limiting top seat (812) through the vertical beam frame (89).
5. The air conditioner compressor crankshaft clamp apparatus of claim 4 wherein, The inside end face of the vertical beam frame (89) is provided with a receiving groove, and the outer wall of the limiting top seat (812) is connected with the inner wall of the receiving groove.
6. The air conditioner compressor crankshaft clamp apparatus of claim 5 wherein, The inner wall of the material guide groove (2) is provided with a bearing supporting groove at both ends of the material rolling shaft (4), and the bearing supporting groove is fixedly installed with a mounting bearing (3), and both ends of the material rolling shaft (4) are respectively inserted and installed in the end face center of the two mounting bearings (3).
7. The air conditioner compressor crankshaft clamp apparatus of claim 6 wherein, The bottom end face of the clamping base (1) is fixedly installed with four mounting feet (9) by welding, and the bottom side end face of the mounting foot (9) is provided with a mounting positioning hole in the center.
Citation Information
Patent Citations
Crankshaft clamp device for air condition compressor
CN204053543U