A compressor crankshaft phosphating turnover frame

Abstract

The application discloses a compressor crankshaft phosphating turnover frame and belongs to the technical field of compressor structures. The turnover frame comprises a frame body, a plurality of crankshaft placing holes are arranged on the frame body, the crankshaft placing holes are distributed at intervals, and a plurality of protrusions are arranged around the crankshaft placing holes. In the scheme, the crankshaft placing holes on the turnover frame can place the crankshafts, and are used for the turnover, degreasing, washing, surface adjustment, phosphating, drying and other processes of the crankshafts. The interval distribution of the crankshaft placing holes can separate the crankshafts placed in the turnover frame, so that the collision between the crankshafts is avoided. The protrusions around the crankshaft placing holes can support the fan-shaped base plates of the crankshafts, separate the fan-shaped base plates of the crankshafts from the surface of the turnover frame, improve the phosphating area of the crankshafts and ensure the phosphating effect of the crankshafts.

Description

Technical Field

[0001] The present invention relates to a turnover frame device, and more specifically, to a compressor crankshaft phosphate turnover frame. Background Technology

[0002] Metal phosphating can form a phosphating film on its surface, which can play a certain role in preventing corrosion of the metal. It can also be used as a base before painting. During the phosphating process, the compressor crankshaft needs to be placed in a turnover frame for phosphating. However, since the crankshaft head and crankshaft body are separated by a fan-shaped base plate, the contact area of ​​the fan-shaped base plate in the turnover frame is large. Therefore, it often cannot be effectively phosphated during the phosphating process, leaving phosphating marks on the crankshaft surface. This not only affects the appearance of the crankshaft but also reduces its performance.

[0003] For example, Chinese Patent Publication No. CN216944226U, published on July 12, 2022, entitled "A Novel Turnover Frame for Gas Cylinder Transportation," discloses a turnover frame structure including a turnover basket body. A threaded rod is rotatably connected to the center of the turnover basket body, and a limiting plate is rotatably connected to the surface of the threaded rod. Long grooves are provided on both sides of the turnover basket body, and sliding blocks are slidably connected between the long grooves. The sliding blocks are fixedly connected to the limiting plate, and a storage groove is provided on the surface of the limiting plate. This solution can separate gas cylinders by providing storage grooves, preventing collisions during transportation. However, this solution cannot be applied to the phosphating of compressor crankshafts because the contact area between the fan-shaped substrate on the crankshaft and the turnover frame is too large to be effectively phosphated. Summary of the Invention

[0004] This invention overcomes the problems of dead zones in the phosphating process of compressor crankshafts, which prevent effective phosphating and leave phosphating marks. It provides a phosphating turnover frame for compressor crankshafts. In this solution, the contact area between the turnover frame and the crankshaft can be minimized to increase the phosphating area and ensure the phosphating effect of the crankshaft.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a compressor crankshaft phosphating turnover frame, comprising a frame body, wherein the frame body is provided with a plurality of crankshaft placement holes, the crankshaft placement holes being spaced apart and having a plurality of protrusions around the crankshaft placement holes. In this solution, the crankshaft placement holes on the turnover frame can hold crankshafts for crankshaft turnover, degreasing, washing, surface conditioning, phosphating, drying and other processes. The spaced distribution of the crankshaft placement holes can separate the crankshafts placed in the turnover frame, avoiding collisions between crankshafts. Furthermore, the protrusions around the crankshaft placement holes can support the fan-shaped base plate of the crankshaft, while separating the fan-shaped base plate of the crankshaft from the surface of the turnover frame, increasing the phosphating area of ​​the crankshaft and ensuring the phosphating effect of the crankshaft.

[0006] Preferably, the frame is further provided with a plurality of through holes, which are spaced apart from the crankshaft mounting holes and distributed between the crankshaft mounting holes. The through holes can reduce the overall weight of the frame and reduce the consumption of manufacturing materials. At the same time, during the phosphating process, the phosphating solution is in a flowing state, and the through holes can effectively increase the flow effect of the phosphating solution on the crankshaft surface, thereby improving the phosphating effect.

[0007] Preferably, the crankshaft mounting holes and the through holes are arranged in an array, and the protrusions are located around the crankshaft mounting holes and the through holes. The array arrangement of both the crankshaft mounting holes and the through holes effectively increases the number of crankshaft mounting holes on the frame. Simultaneously, the protrusions are located around both the crankshaft mounting holes and the through holes, meaning the through holes are distributed around the crankshaft mounting holes, ensuring better flow of the phosphating solution around the crankshaft mounting holes and improving the phosphating effect of the crankshaft.

[0008] Preferably, the protrusion is curved, bending towards the crankshaft mounting hole, and its surface is rounded. The curved shape increases the protrusion's length, making the crankshaft placement more stable. The curved opening of the crankshaft faces the crankshaft mounting hole, and the rounded surface prevents wear and scratches between the crankshaft and the protrusion. It also reduces surface stress on the protrusion, improving the service life of the turnover frame.

[0009] Preferably, the side of the crankshaft mounting hole furthest from the protrusions on the frame is an axially elongated hole, and the axially elongated hole is concentrically arranged with the crankshaft mounting hole. The axially elongated hole can improve the stability of the crankshaft and prevent the crankshaft from shaking violently during rotation.

[0010] Preferably, the radial dimension of the axially elongated hole is larger than the radial dimension of the crankshaft mounting hole. Designing the axially elongated hole to have a larger radial dimension allows for a certain space between the crankshaft surface and the hole. During the phosphating process, the phosphating solution can flow into this space to phosphate the crankshaft surface, thereby improving the phosphating effect on the crankshaft surface.

[0011] Preferably, the frame is provided with waist holes, which are distributed outside all the crankshaft mounting holes, and the frame edge is also provided with a support portion. The waist holes on the frame are elongated and arranged outside all the crankshaft mounting holes. For the crankshaft mounting holes at the edge of the frame, there are no through holes outside them. Thus, the waist holes are provided to increase the flow effect of the phosphating liquid on both sides of the frame and improve the contact effect between the phosphating liquid at the edge of the frame and the crankshaft. At the same time, the waist holes and the support portion outside the crankshaft can also serve as a turnover structure for the frame, realizing the handling and placement of the frame.

[0012] Preferably, a first rolling element is disposed within the axial elongated bore, and the first rolling element is circumferentially and evenly distributed on the inner surface of the axial elongated bore. The first rolling element within the axial elongated bore can improve the rotational movement of the crankshaft within the rotating frame and avoid direct friction between the outside of the crankshaft and the inside of the axial elongated bore.

[0013] Preferably, a rotating mechanism is detachably connected to the side of the axially elongated hole away from the frame. The rotating mechanism includes support frames that are vertically spaced, and a driving device is located at the bottom of each support frame. The rotating mechanism can be installed and removed from the bottom of the axially elongated hole. During operations such as rotation, the rotating mechanism can be omitted. However, during phosphating, the rotating mechanism can drive the crankshaft to rotate circumferentially, thereby improving the phosphating efficiency of the crankshaft. The spacing between the support frames ensures that the phosphating solution effectively enters the crankshaft and adheres to its surface.

[0014] Preferably, the output end of the drive device is provided with a second rolling element, which is arranged at an angle. The second rolling element can abut against the crankshaft hole at the bottom of the crankshaft, transmitting the torque of the drive device to the bottom of the crankshaft, so that the crankshaft can rotate circumferentially. Since the crankshaft hole at the bottom of the crankshaft is generally an enlarged hole with a certain slope, the second rolling element needs to be designed at an angle.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The structure of this solution is simple and can improve the crankshaft’s turnover, degreasing, water washing, surface conditioning, phosphating and drying effects; (2) The raised structure on the surface of the frame can improve the phosphating surface of the crankshaft while ensuring that the crankshaft is placed stably, thus improving the phosphating effect of the crankshaft; (3) The addition of a rotating mechanism can further improve the phosphating effect of the crankshaft during the phosphating process, thereby eliminating the dead angle of phosphating of the crankshaft. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention.

[0017] Figure 2 for Figure 1 A cross-sectional view along the AA direction.

[0018] Figure 3 This is a schematic diagram of the crankshaft of the present invention placed in the turnover frame.

[0019] Figure 4 for Figure 1 Cross-sectional view along the BB direction.

[0020] Figure 5 This is a schematic diagram of Embodiment 2 of the present invention.

[0021] In the figure: 1. Frame, 2. Crankshaft mounting hole, 3. Protrusion, 4. Through hole, 5. Axial elongated hole, 6. Waist hole, 7. Support part, 8. First rolling element, 9. Support part, 10. Drive device, 11. Second rolling element, 12. Crankshaft, 12.1. Crankshaft head, 12.2. Fan-shaped base plate, 12.3. Crankshaft body, 12.4. Crankshaft hole, 13. Drive device base, 14. Turntable, 15. Upper support plate, 16. Lower support plate, 17. Through hole, 18. Elastic element. Detailed Implementation

[0022] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0023] Example 1: As Figures 1 to 4 The compressor crankshaft phosphating turnover frame shown includes a frame body 1, which is a thin plate structure. Several crankshaft placement holes 2 are formed on the surface of the frame body 1. The crankshaft placement holes 2 are through holes in the frame body 1. Several through holes 4 are also provided on the frame body 1. The crankshaft placement holes 2 can accommodate the compressor crankshaft 12 structure and are used for the turnover, degreasing, water washing, surface conditioning, phosphating, drying and other processes of the crankshaft 12. The through holes 4 can reduce the amount of consumables used in the frame body 1 and reduce the overall weight of the frame body 1. On the other hand, they can also improve the flow effect of the phosphating liquid during the phosphating process of the crankshaft 12, so as to promote the contact effect between the surface of the crankshaft 12 and the phosphating liquid and thus improve the phosphating effect of the crankshaft 12.

[0024] like Figure 1 As shown, a protrusion 3 is also provided on the upper surface of the frame 1. The protrusion 3 is positioned circumferentially around the crankshaft mounting hole 2, and a certain distance is designed between the protrusion 3 and the crankshaft mounting hole 2 to avoid interference between the protrusion 3 and the crankshaft mounting hole 2, which could damage the protrusion 3 or the crankshaft mounting hole 2. For example, Figure 3As shown, the compressor crankshaft 12 includes a crankshaft head 12.1 and a crankshaft body 12.3. A fan-shaped base plate 12.2 is disposed between the crankshaft head 12.1 and the crankshaft body 12.3. When the crankshaft 12 is placed in the crankshaft mounting hole 2 on the frame 1, the fan-shaped base plate 12.2 of the crankshaft 12 contacts the protrusion 3 on the frame 1, and the protrusion 3 provides support for the fan-shaped base plate 12.2 of the crankshaft 12. Specifically, each crankshaft mounting hole 2 has four protrusion 3 structures arranged circumferentially. The protrusions 3 are evenly distributed around the crankshaft mounting hole 3, that is, on the upper part of the crankshaft mounting hole 2. A protrusion 3 is arranged on both the lower left and right sides, and the fan-shaped base plate 12.2 of the crankshaft 12 can contact at least two adjacent protrusions 3 to realize the placement of the crankshaft 12. At the same time, the protrusions 3 separate the fan-shaped base plate 12.2 of the crankshaft 12 from the surface of the frame 1, creating a certain gap. When the crankshaft 12 and the frame 1 are placed together in the phosphating solution, the phosphating solution can enter the gap between the lower surface of the fan-shaped base plate 12.2 and the upper surface of the frame 1, thereby improving the phosphating effect of the lower surface of the fan-shaped base plate 12.2 of the crankshaft 12 and improving the overall performance of the crankshaft.

[0025] Specifically, the crankshaft mounting holes 2 are arranged in a rectangular array, and the through holes 4 are also arranged in a rectangular array. The number of crankshaft mounting holes 2 is 6x5, that is, 30 crankshaft mounting holes arranged in 6 rows and 5 columns; the number of through holes 4 is 5x4, that is, 20 through holes arranged in 5 rows and 4 columns. Arranging the crankshaft mounting holes 2 and through holes 4 in a rectangular array maximizes the number of crankshaft mounting holes 2, while also reserving some space for the arrangement of protrusions 3. Furthermore, the number of rows and columns of crankshaft mounting holes 2 is one more than that of through holes 4, thus maximizing the number of crankshaft mounting holes 2. Of course, this is only one embodiment; the specific number and arrangement can be varied and can be set according to actual production needs.

[0026] In this embodiment, the crankshaft mounting hole 2 and the through hole 4 are also staggered, specifically, as shown in the example below. Figure 1 As shown, 5 rows and 4 columns of through holes 4 are distributed among 6 rows and 5 columns of crankshaft mounting holes 2. That is, each row of crankshaft mounting holes 2 and each row of through holes 4 are adjacent and staggered, and each column of crankshaft mounting holes 2 and each column of through holes 4 are adjacent and staggered. Thus, a through hole 4 structure is arranged at each of the four corners of each crankshaft mounting hole 2 (relative to the crankshaft mounting hole 2 in the middle of the frame 1). Since there is a protrusion 3 on each of the top, bottom, left, and right sides of the crankshaft mounting hole 2, the protrusion 3 also surrounds the through hole 4. Specifically, as shown... Figure 1As shown, each through hole 4 has two protrusions 3 on its top, bottom, left, and right sides (relative to the through hole 4 in the middle of the frame 1). After the crankshaft 12 is placed in the crankshaft placement hole 2, it will be placed into the phosphating tank for phosphating. The phosphating solution in the phosphating tank is in a flowing state. Since the crankshaft placement hole 2 is occupied by the crankshaft 12, the phosphating solution on the top and bottom sides of the frame 1 cannot flow effectively. Therefore, through the through hole 4, the phosphating solution on both sides of the frame 1 can flow, thereby achieving effective phosphating of the crankshaft body 12.3, crankshaft head 12.1, and fan-shaped substrate 12.2 on both sides of the frame 1. Since there is a gap between the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12 and the upper surface of the frame 1, the flow of the phosphating solution at the through hole 4 can also cause the phosphating solution in the gap to flow, ensuring the phosphating effect on the lower surface of the fan-shaped substrate 12.2.

[0027] It should be noted that the protrusion 3 is designed in a curved shape, and the curved opening of the protrusion 3 faces the side of the crankshaft mounting hole 2. The four protrusions 3 on the periphery of the crankshaft mounting hole 2 are located on the same circle, and the circle formed by the four protrusions 3 intersects or is tangent to the through hole 4; this ensures the phosphating effect of the fan-shaped substrate 12.2 of the crankshaft 12. The upper surface of the protrusion 3 is provided with rounded corners, which can reduce the internal stress of the protrusion 3 and prevent the protrusion 3 from being easily damaged, and can also protect the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12.

[0028] An axially elongated hole 5 is also provided on the lower surface of the crankshaft placement hole 2. The position of the axially elongated hole 5 corresponds to the position of the crankshaft placement hole 2. The axially elongated hole 5 is also a through hole structure. The length of the axially elongated hole 5 is greater than the thickness of the frame 1 (approximately twice), and the axis of the axially elongated hole 5 coincides with the axis of the crankshaft placement hole 2. When the crankshaft 12 is placed in the crankshaft placement hole 2, a portion of the lower part of the crankshaft 12 (crankshaft body 12.3) is located within the axially elongated hole 5, thereby improving the stability of the crankshaft 12 and preventing severe shaking during rotation. The radial dimension of the axially elongated hole 5 is slightly larger than the radial dimension of the crankshaft 12 placement hole. When the crankshaft 12 is placed in the crankshaft placement hole 2, a portion of the lower part of the crankshaft 12 (crankshaft body 12.3) is located within the axially elongated hole 5, and there is a certain gap between the outer surface of the crankshaft body 12. This gap can accommodate the phosphating solution in the phosphating tank, thereby allowing phosphating of the surface of the crankshaft 12.

[0029] It should be noted that the frame 1 is a plastic part injection molded from plastic. This reduces the weight of the frame 1 and also helps prevent it from being damaged in the phosphating solution. Furthermore, the crankshaft mounting hole 2, through hole 4, protrusion 3, and axial elongated hole 5 on the frame 1 are all integral structures, making it easy to manufacture this frame structure.

[0030] Waist holes 6 are also provided on the frame 1, and the waist holes 6 are distributed at the edge of the frame 1, such as... Figure 1 As shown, the waist hole 6 is also a hole structure penetrating the surface of the frame 1. The waist hole 6 is elongated. It should be noted that at the outermost crankshaft placement hole 2, a waist hole 6 is provided between every two adjacent crankshaft placement holes 2. The waist hole 6 is located on the same straight line as the outermost protrusion 3, that is, a waist hole 6 is provided between two protrusions 3. Similarly, relative to the crankshaft placement hole 2 on the outer periphery of the frame 1, the circle formed by the four protrusions 3 on the top, bottom, left, and right of the crankshaft placement hole 2 intersects or is tangent to the waist hole 6. The waist hole 6 can be used for the placement and turnover of the frame 1, and it also facilitates the flow of phosphating solution on both sides of the frame 1, thereby improving the phosphating effect of the crankshaft 12 placed on the outer periphery of the frame 1. Similarly, a support part 7 is provided on the edge side of the frame 1. The support part 7 can support the frame 1, which is beneficial for the frame 1 to be placed in the turnover box.

[0031] Example 2: Figures 1 to 5 The compressor crankshaft phosphating turnover frame shown includes a frame body 1, which is a thin plate structure. Several crankshaft placement holes 2 are formed on the surface of the frame body 1. The crankshaft placement holes 2 are through holes in the frame body 1. Several through holes 4 are also provided on the frame body 1. The crankshaft placement holes 2 can accommodate the compressor crankshaft 12 structure and are used for the turnover, degreasing, water washing, surface conditioning, phosphating, drying and other processes of the crankshaft 12. The through holes 4 can reduce the amount of consumables used in the frame body 1 and reduce the overall weight of the frame body 1. On the other hand, they can also improve the flow effect of the phosphating liquid during the phosphating process of the crankshaft 12, so as to promote the contact effect between the surface of the crankshaft 12 and the phosphating liquid and thus improve the phosphating effect of the crankshaft 12.

[0032] like Figure 1 As shown, a protrusion 3 is also provided on the upper surface of the frame 1. The protrusion 3 is positioned circumferentially around the crankshaft mounting hole 2, and a certain distance is designed between the protrusion 3 and the crankshaft mounting hole 2 to avoid interference between the protrusion 3 and the crankshaft mounting hole 2, which could damage the protrusion 3 or the crankshaft mounting hole 2. For example, Figure 3As shown, the compressor crankshaft 12 includes a crankshaft head 12.1 and a crankshaft body 12.3. A fan-shaped base plate 12.2 is disposed between the crankshaft head 12.1 and the crankshaft body 12.3. When the crankshaft 12 is placed in the crankshaft mounting hole 2 on the frame 1, the fan-shaped base plate 12.2 of the crankshaft 12 contacts the protrusion 3 on the frame 1, and the protrusion 3 provides support for the fan-shaped base plate 12.2 of the crankshaft 12. Specifically, each crankshaft mounting hole 2 has four protrusion 3 structures arranged circumferentially. The protrusions 3 are evenly distributed around the crankshaft mounting hole 3, that is, on the upper part of the crankshaft mounting hole 2. A protrusion 3 is arranged on both the lower left and right sides, and the fan-shaped base plate 12.2 of the crankshaft 12 can contact at least two adjacent protrusions 3 to realize the placement of the crankshaft 12. At the same time, the protrusions 3 separate the fan-shaped base plate 12.2 of the crankshaft 12 from the surface of the frame 1, creating a certain gap. When the crankshaft 12 and the frame 1 are placed together in the phosphating solution, the phosphating solution can enter the gap between the lower surface of the fan-shaped base plate 12.2 and the upper surface of the frame 1, thereby improving the phosphating effect of the lower surface of the fan-shaped base plate 12.2 of the crankshaft 12 and improving the overall performance of the crankshaft.

[0033] Specifically, the crankshaft mounting holes 2 are arranged in a rectangular array, and the through holes 4 are also arranged in a rectangular array. The number of crankshaft mounting holes 2 is 6x5, that is, 30 crankshaft mounting holes arranged in 6 rows and 5 columns; the number of through holes 4 is 5x4, that is, 20 through holes arranged in 5 rows and 4 columns. Arranging the crankshaft mounting holes 2 and through holes 4 in a rectangular array maximizes the number of crankshaft mounting holes 2, while also reserving some space for the arrangement of protrusions 3. Furthermore, the number of rows and columns of crankshaft mounting holes 2 is one more than that of through holes 4, thus maximizing the number of crankshaft mounting holes 2. Of course, this is only one embodiment; the specific number and arrangement can be varied and can be set according to actual production needs.

[0034] In this embodiment, the crankshaft mounting hole 2 and the through hole 4 are also staggered, specifically, as shown in the example below. Figure 1 As shown, 5 rows and 4 columns of through holes 4 are distributed among 6 rows and 5 columns of crankshaft mounting holes 2. That is, each row of crankshaft mounting holes 2 and each row of through holes 4 are adjacent and staggered, and each column of crankshaft mounting holes 2 and each column of through holes 4 are adjacent and staggered. Thus, a through hole 4 structure is arranged at each of the four corners of each crankshaft mounting hole 2 (relative to the crankshaft mounting hole 2 in the middle of the frame 1). Since there is a protrusion 3 on each of the top, bottom, left, and right sides of the crankshaft mounting hole 2, the protrusion 3 also surrounds the through hole 4. Specifically, as shown... Figure 1As shown, each through hole 4 has two protrusions 3 on its top, bottom, left, and right sides (relative to the through hole 4 in the middle of the frame 1). After the crankshaft 12 is placed in the crankshaft placement hole 2, it will be placed into the phosphating tank for phosphating. The phosphating solution in the phosphating tank is in a flowing state. Since the crankshaft placement hole 2 is occupied by the crankshaft 12, the phosphating solution on the top and bottom sides of the frame 1 cannot flow effectively. Therefore, through the through hole 4, the phosphating solution on both sides of the frame 1 can flow, thereby achieving effective phosphating of the crankshaft body 12.3, crankshaft head 12.1, and fan-shaped substrate 12.2 on both sides of the frame 1. Since there is a gap between the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12 and the upper surface of the frame 1, the flow of the phosphating solution at the through hole 4 can also cause the phosphating solution in the gap to flow, ensuring the phosphating effect on the lower surface of the fan-shaped substrate 12.2.

[0035] It should be noted that the protrusion 3 is designed in a curved shape, and the curved opening of the protrusion 3 faces the side of the crankshaft mounting hole 2. The four protrusions 3 on the periphery of the crankshaft mounting hole 2 are located on the same circle, and the circle formed by the four protrusions 3 intersects or is tangent to the through hole 4; this ensures the phosphating effect of the fan-shaped substrate 12.2 of the crankshaft 12. The upper surface of the protrusion 3 is provided with rounded corners, which can reduce the internal stress of the protrusion 3 and prevent the protrusion 3 from being easily damaged, and can also protect the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12.

[0036] An axially elongated hole 5 is also provided on the lower surface of the crankshaft placement hole 2. The position of the axially elongated hole 5 corresponds to the position of the crankshaft placement hole 2. The axially elongated hole 5 is also a through hole structure. The length of the axially elongated hole 5 is greater than the thickness of the frame 1 (approximately twice), and the axis of the axially elongated hole 5 coincides with the axis of the crankshaft placement hole 2. When the crankshaft 12 is placed in the crankshaft placement hole 2, a portion of the lower part of the crankshaft 12 (crankshaft body 12.3) is located within the axially elongated hole 5, thereby improving the stability of the crankshaft 12 and preventing severe shaking during rotation. The radial dimension of the axially elongated hole 5 is slightly larger than the radial dimension of the crankshaft 12 placement hole. When the crankshaft 12 is placed in the crankshaft placement hole 2, a portion of the lower part of the crankshaft 12 (crankshaft body 12.3) is located within the axially elongated hole 5, and there is a certain gap between the outer surface of the crankshaft body 12. This gap can accommodate the phosphating solution in the phosphating tank, thereby allowing phosphating of the surface of the crankshaft 12.

[0037] like Figure 5As shown, a first rolling element 8 is provided in the axial elongated hole 5. The first rolling elements 8 are evenly distributed on the inner side of the axial elongated hole 2 and are circumferentially distributed. There are four first rolling elements 8. The first rolling elements 8 can be ball structures or roller structures. In this scheme, a roller structure is used as the first rolling element 8. The first rolling element 8 can rotate circumferentially in the axial elongated hole 5. Specifically, a receiving groove is provided in the axial elongated hole 5 to accommodate the first rolling elements 8, and the radial edge of the first rolling element 8 is located in the axial elongated hole 5 and aligned with the inner diameter of the crankshaft placement hole 2. When the crankshaft 12 is placed in the crankshaft placement hole 2, the crankshaft body 12.3 will abut against the first rolling elements 8 in the axial elongated hole 5.

[0038] A rotating mechanism is also provided at the bottom of the axial elongated hole 5. The rotating mechanism is detachably fixed to the bottom of the axial elongated hole 5, specifically, it can be a snap-fit ​​connection or a knob lock. The rotating mechanism includes a support frame 9, a drive device 10, and a drive device base 13. The support frame 9 is a strip-shaped structure, and several support frames 9 are provided, vertically distributed at the bottom of the axial elongated hole 5. The bottom of all the support frames 9 forms the drive device base 13, and the drive device 10 is provided on the drive device base 13. The drive device 10 is a small actuator capable of outputting torque. The output end is provided with a turntable 14, which is also a circular boss structure. Second rolling elements 11 are provided on both sides of the turntable 14. Specifically, an upper support plate 15 and a lower support plate 16 are respectively provided on the upper and lower sides of the turntable 14. The turntable 14 is rotatably connected between the upper support plate 15 and the lower support plate 16. Since the turntable 14 is a boss, its edge is a conical surface. The second rolling elements 11 are rotatably connected between the upper support plate 15 and the lower support plate 16 and rotate in contact with the conical surface. When the drive device 10 outputs torque, it drives the turntable 14 to rotate, thereby driving the second rolling elements 11 to rotate.

[0039] It should be noted that the radial edge of the second rolling element 11 is located outside the upper support plate 15 and the lower support plate 16. The rotating mechanism is located at the bottom of the crankshaft 12. When the crankshaft 12 is placed in the crankshaft placement hole 2, the crankshaft hole 12.4 at the bottom of the crankshaft 12 can just abut against the second rolling element 11 on the rotating mechanism. Thus, when the second rolling element 11 rotates, it can drive the crankshaft 12 to rotate to a certain extent, so that the contact point between the bottom of the fan-shaped substrate 12.2 and the protrusion 3 is offset from the protrusion 3. Therefore, the original contact point between the fan-shaped substrate 12.2 and the protrusion 3 can also be phosphated in the phosphate solution, improving the phosphated effect of the crankshaft and eliminating the phosphate dead corner. Among them, the crankshaft hole 12.4 at the bottom of the crankshaft 12 is enlarged, so the second rolling element 11 needs to be arranged at a certain degree of inclination.

[0040] It should be noted that the turntable 14 also has a perforation 17 structure in the middle. The phosphating solution can enter the crankshaft hole 12.4 through the perforation 17 and then enter the crankshaft 12. This avoids the phosphating solution being unable to enter the crankshaft 12 due to the rotation mechanism, which would affect the phosphating effect.

[0041] A groove is provided on the base 13 of the drive unit for placing the drive unit 10, and an elastic element 18 is provided in the groove. One end of the elastic element 18 abuts against the bottom of the drive unit 10, and the other end abuts against the groove, so that the drive unit 10 can generate a certain degree of vertical displacement within the groove. When the crankshaft 12 is placed into the crankshaft placement hole 2, the crankshaft hole 12.4 at the bottom of the crankshaft 12 first abuts against the second rolling element 11, and continues downward, pressing down on the drive mechanism to a certain extent, so as to ensure that the crankshaft hole 12.4 and the second rolling element 11 have contact force, thereby improving the torque transmission effect. At this time, the elastic element 18 can deform to adjust the position of the drive mechanism. In addition, due to the action of the elastic element 18, the drive mechanism can also provide a certain support for the crankshaft 12, thereby reducing the contact force between the fan-shaped base plate 12.2 of the crankshaft 12 and the protrusion 3, which is more conducive to the rotation of the crankshaft 12. In addition, the rounded corner structure on the upper surface of the protrusion 3 can also guide the fan-shaped substrate 12.2, preventing it from getting stuck and unable to rotate. In actual operation, the crankshaft 12 can be set to a speed of 10 revolutions per minute. It does not need to rotate too fast; it is only necessary to ensure that the bottom of the fan-shaped substrate 12.2 can contact the phosphating solution to achieve phosphating without dead angles.

[0042] It should be noted that the frame 1 is a plastic part injection molded from plastic. This reduces the weight of the frame 1 and also helps prevent it from being damaged in the phosphating solution. Furthermore, the crankshaft mounting hole 2, through hole 4, protrusion 3, and axial elongated hole 5 on the frame 1 are all integral structures, making it easy to manufacture this frame structure.

[0043] Waist holes 6 are also provided on the frame 1, and the waist holes 6 are distributed at the edge of the frame 1, such as... Figure 1As shown, the waist hole 6 is also a hole structure penetrating the surface of the frame 1. The waist hole 6 is elongated. It should be noted that at the outermost crankshaft placement hole 2, a waist hole 6 is provided between every two adjacent crankshaft placement holes 2. The waist hole 6 is located on the same straight line as the outermost protrusion 3, that is, a waist hole 6 is provided between two protrusions 3. Similarly, relative to the crankshaft placement hole 2 on the outer periphery of the frame 1, the circle formed by the four protrusions 3 on the top, bottom, left, and right of the crankshaft placement hole 2 intersects or is tangent to the waist hole 6. The waist hole 6 can be used for the placement and turnover of the frame 1, and it also facilitates the flow of phosphating solution on both sides of the frame 1, thereby improving the phosphating effect of the crankshaft 12 placed on the outer periphery of the frame 1. Similarly, a support part 7 is provided on the edge side of the frame 1. The support part 7 can support the frame 1, which is beneficial for the frame 1 to be placed in the turnover box.

Claims

1. A phosphated crankshaft turnover frame for a compressor, characterized in that, The frame includes a plurality of crankshaft placement holes, which are spaced apart and have a plurality of protrusions around them. The crankshaft placement hole is located on the side away from the protrusion on the frame. The bottom of the axial long hole is equipped with a rotating mechanism. The rotating mechanism includes a support frame and a drive device at the bottom of the support frame. The output end of the drive device is equipped with a turntable, which is a circular boss. Second rolling elements are provided on both sides of the turntable. When the crankshaft is in the crankshaft placement hole, the crankshaft hole at the bottom of the crankshaft and the second rolling elements abut against each other. The drive device outputs torque. The contact point between the bottom of the fan-shaped base plate and the protrusion is offset from the protrusion. The frame is also provided with a number of through holes, which are distributed at intervals with the crankshaft placement holes and are distributed between the crankshaft placement holes; the crankshaft placement holes and the through holes are arranged in an array, and the protrusion is located around the crankshaft placement holes and around the through holes.

2. The phosphated crankshaft turnover frame for a compressor according to claim 1, characterized in that, The crankshaft mounting holes and through holes are distributed alternately.

3. A compressor crankshaft phosphated turnover frame according to claim 2, characterized in that, The turntable has a perforation in the middle to allow the phosphating solution to enter the crankshaft.

4. The phosphated crankshaft turnover frame for a compressor according to claim 1, characterized in that, The protrusion is curved and bends toward the crankshaft mounting hole, and the surface of the protrusion is provided with rounded corners.

5. A compressor crankshaft phosphated turnover frame according to any one of claims 1 to 4, characterized in that, The axial elongated hole is arranged concentrically with the crankshaft placement hole.

6. A compressor crankshaft phosphated turnover frame according to claim 5, characterized in that, The radial dimension of the axially elongated hole is greater than the radial dimension of the crankshaft placement hole.

7. A compressor crankshaft phosphated turnover frame according to any one of claims 1 to 4, characterized in that, The frame is provided with waist holes, which are distributed outside all the crankshaft mounting holes, and the frame edge is also provided with support parts.

8. A compressor crankshaft phosphated turnover frame according to claim 6, characterized in that, A first rolling element is disposed inside the axial elongated hole, and the first rolling element is evenly distributed circumferentially on the inner surface of the axial elongated hole.

9. A compressor crankshaft phosphated turnover frame according to claim 8, characterized in that, The axial elongated hole on the side away from the frame can be detachably connected to a rotating mechanism.

10. A compressor crankshaft phosphated turnover frame according to claim 9, characterized in that, The second rolling element is arranged at an angle.

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