Phosphorization turnover frame for compressor crankshaft

Abstract

The invention discloses a compressor crankshaft phosphorization turnover frame, which belongs to the technical field of compressor structures, and comprises a frame body, the frame body is provided with a plurality of crankshaft placing holes, the crankshaft placing holes are distributed at intervals, and the peripheries of the crankshaft placing holes are provided with a plurality of bulges. According to the scheme, crankshafts can be placed in the crankshaft placing holes in the turnover frame and used for the processes of turnover, degreasing, washing, surface conditioning, phosphorization, drying and the like of the crankshafts, the crankshaft placing holes are distributed at intervals so that the crankshafts placed in the turnover frame can be separated, and collision between the crankshafts is avoided; and the protrusions on the peripheries of the crankshaft containing holes can play a role in supporting the fan-shaped base plates of the crankshafts, meanwhile, the fan-shaped base plates of the crankshafts are separated from the surface of the turnover frame, the phosphating area of the crankshafts is increased, and the phosphating effect of the crankshafts is guaranteed.

Description

Technical Field

[0001] The invention relates to a turnover frame device, and more particularly to a compressor crankshaft phosphating turnover frame. Background Art

[0002] Metal phosphating can generate a phosphating film on its surface, which can protect the metal from corrosion to a certain extent and can also be used as a primer before painting. The compressor crankshaft needs to be placed in a turnover frame for phosphating during the phosphating process. However, since the crankshaft head and the crankshaft body are separated by a fan-shaped substrate, the fan-shaped substrate has a large contact area in the turnover frame. Therefore, during the phosphating process, it is often not effectively phosphated, and phosphating marks are left on the crankshaft surface, which not only affects the appearance of the crankshaft but also reduces the performance of the crankshaft.

[0003] For example: Chinese patent announcement number CN216944226U, announcement date July 12, 2022, the name of the utility model is a new type of turnover frame for transporting gas cylinders. The application discloses a turnover frame structure, including a turnover basket body, the interior of the turnover basket body is rotatably connected to a threaded rod at the center position, the surface of the threaded rod is rotatably connected to a limit plate, 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 limit plates, and the surface of the limit plates is provided with storage grooves. This scheme can set storage grooves to separate gas cylinders to avoid collision of gas cylinders during transportation, but this scheme cannot be applied to the phosphating of compressor crankshafts. The contact surface between the fan-shaped substrate on the crankshaft and the turnover frame is large and cannot be effectively phosphated. Summary of the invention

[0004] The present invention overcomes the problem that the compressor crankshaft cannot be effectively phosphated due to the presence of dead angles and phosphating marks during the phosphating process, and provides a compressor crankshaft phosphating turnover frame. In this solution, the contact area between the turnover frame and the crankshaft can be reduced as much as possible, and the phosphating area is increased to ensure the phosphating effect of the crankshaft.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a compressor crankshaft phosphating turnover frame, comprising a frame body, the frame body is provided with a plurality of crankshaft placement holes, the crankshaft placement holes are spaced apart and a plurality of protrusions are provided around the crankshaft placement holes. In this scheme, the crankshaft placement holes on the turnover frame can be used to place the crankshafts for the turnover, degreasing, washing, surface adjustment, phosphating, drying and other processes of the crankshafts. The crankshaft placement holes are spaced apart to separate the crankshafts placed in the turnover frame to avoid collisions between the crankshafts, and the protrusions around the crankshaft placement holes can support the fan-shaped substrate of the crankshaft, while separating the fan-shaped substrate of the crankshaft from the surface of the turnover frame, thereby 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 placement holes and are distributed between the crankshaft placement holes. The through holes can reduce the overall weight of the frame and the consumption of manufacturing materials. Meanwhile, during the phosphating process, the phosphating liquid is in a flowing state, and the through holes can effectively increase the flow effect of the phosphating liquid on the crankshaft surface, thereby improving the phosphating effect.

[0007] Preferably, the crankshaft placement holes and the through holes are arranged in an array, and the protrusions are located around the crankshaft placement holes and around the through holes. The crankshaft placement holes and the through holes are arranged in an array, which can effectively increase the number of crankshaft placement holes on the frame. At the same time, the protrusions are located around both the crankshaft placement holes and the through holes, that is, the through holes are distributed around the crankshaft placement holes, ensuring that the phosphating liquid around the crankshaft placement holes has a better flow effect and improves the phosphating effect of the crankshaft.

[0008] Preferably, the protrusion is curved, the protrusion is curved toward the crankshaft placement hole, and the surface of the protrusion is provided with a rounded corner. The curved protrusion can increase the length of the protrusion to a certain extent, making the crankshaft placement more stable, and the crankshaft bending opening is facing the crankshaft placement hole, and the rounded corners on the protrusion surface can avoid wear and scratching between the crankshaft and the protrusion, and at the same time can reduce the stress on the protrusion surface and increase the service life of the turnover frame.

[0009] Preferably, the side of the crankshaft placement hole away from the frame distribution protrusion is an axial long hole, and the axial long hole is arranged concentrically with the crankshaft placement hole. The axial long hole can improve the stability of the crankshaft and prevent the crankshaft from shaking violently during the rotation process.

[0010] Preferably, the radial dimension of the axial long hole is larger than the radial dimension of the crankshaft placement hole. The radial dimension of the axial long hole is designed to be larger, so that a certain space can be left between the crankshaft surface and the axial long hole. During the phosphating process, the phosphating liquid can flow into the space to phosphate the crankshaft surface, thereby improving the phosphating effect of the crankshaft surface.

[0011] Preferably, the frame is provided with waist holes, which are distributed outside all the crankshaft placement holes, and the edge of the frame is also provided with a support portion. The waist holes on the frame are in the shape of long strips and are arranged outside all the crankshaft placement holes. For the crankshaft placement holes at the edge of the frame, there are no through holes outside them, so the waist holes are provided to increase the circulation 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 the turnover structure of the frame to realize the transportation and placement of the frame.

[0012] Preferably, a first rolling body is arranged in the axial long hole, and the first rolling body is evenly distributed on the inner surface of the axial long hole in the circumferential direction. The first rolling body in the axial long hole can improve the rotation of the crankshaft in the revolving frame and avoid direct friction between the outside of the crankshaft and the inside of the axial long hole.

[0013] Preferably, the axial long hole is detachably connected to a rotating mechanism at one side away from the frame, and the rotating mechanism includes a support frame, the support frames are vertically spaced, and a driving device is provided at the bottom of the support frame. The rotating mechanism can be installed and removed at the bottom of the axial long hole. During operations such as turnover, the rotating mechanism may not be used, and during the phosphating process, the crankshaft may be driven to rotate circumferentially by the rotating mechanism to improve the phosphating efficiency of the crankshaft. Spacers are provided between the support frames to ensure that the phosphating solution effectively enters the crankshaft and adheres to the surface of the crankshaft.

[0014] Preferably, the output end of the driving device is provided with a second rolling body, and the second rolling body is arranged in an inclined manner. The second rolling body can abut against the crankshaft hole at the bottom of the crankshaft to transmit the torque of the driving 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 expanded hole and has a certain slope, the second rolling body needs to be designed to be inclined.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention has a simple structure and can improve the crankshaft's turnover, degreasing, water washing, surface conditioning, phosphating, drying and other effects; (2) The raised structure on the surface of the frame can improve the phosphating surface of the crankshaft while ensuring the stable placement of the crankshaft, thereby 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 phosphating dead angle of the crankshaft. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0018] Figure 3 It is a schematic diagram of the crankshaft of the present invention when it is 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 Example 2 of the present invention.

[0021] In the figure: 1. frame, 2. crankshaft placement hole, 3. protrusion, 4. through hole, 5. axial long hole, 6. waist hole, 7. support part, 8. first rolling body, 9. support part, 10. driving device, 11. second rolling body, 12. crankshaft, 12.1. crankshaft head, 12.2. fan-shaped base plate, 12.3. crankshaft body, 12.4. crankshaft hole, 13. driving device base, 14. turntable, 15. upper support plate, 16. lower support plate, 17. perforation, 18. elastic member. DETAILED DESCRIPTION

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

[0023] Example 1: Figures 1 to 4 A compressor crankshaft phosphating turnover frame shown in the figure includes a frame body 1, the frame body 1 is a thin plate structure as a whole, a plurality of crankshaft placement holes 2 are opened on the surface of the frame body 1, the crankshaft placement holes 2 are hole structures that penetrate the frame body 1, and a plurality of through-holes 4 are also provided on the frame body 1, and the through-holes 4 are also hole structures that penetrate the frame body 1, wherein the crankshaft placement holes 2 can place the compressor crankshaft 12 structure, and are used for the turnover, degreasing, washing, surface adjustment, phosphating, drying and other processes of the crankshaft 12; and the through-holes 4 can reduce the consumables used in the frame body 1 and the overall weight of the frame body 1 on the one hand, and can also improve the flow effect of the phosphating solution during the phosphating process of the crankshaft 12 on the other hand, so as to promote the contact effect between the surface of the crankshaft 12 and the phosphating solution, thereby improving the phosphating effect of the crankshaft 12.

[0024] like Figure 1 As shown, a protrusion 3 structure is also provided on the upper surface of the frame 1, and the protrusion 3 is provided at a circumferential position of the crankshaft placement hole 2, and a certain distance is designed between the protrusion 3 and the crankshaft placement hole 2 to avoid interference between the protrusion 3 and the crankshaft placement hole 2 and damage to the protrusion 3 or the crankshaft placement hole 2. Figure 3As shown, the compressor crankshaft 12 includes a crankshaft head 12.1 and a crankshaft body 12.3, and a fan-shaped base plate 12.2 is arranged between the crankshaft head 12.1 and the crankshaft body 12.3. When the crankshaft 12 is placed in the crankshaft placement 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 supports the fan-shaped base plate 12.2 of the crankshaft 12; specifically, four protrusions 3 are arranged circumferentially of each crankshaft placement hole 2, and the protrusions 3 are evenly distributed around the crankshaft placement hole 3, that is, on the upper side of the crankshaft placement hole 2. A protrusion 3 structure is arranged on the lower left and right sides, and the fan-shaped substrate 12.2 of the crankshaft 12 can at least contact two adjacent protrusions 3 to achieve the placement of the crankshaft 12. At the same time, the protrusion 3 separates the fan-shaped substrate 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 in the phosphating solution together, the phosphating solution can enter the gap between the lower surface of the fan-shaped substrate 12.2 and the upper surface of the frame 1, thereby improving the phosphating effect of the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12 and improving the overall performance of the crankshaft.

[0025] Specifically, the crankshaft placement holes 2 are arranged in a rectangular array, and the through holes 4 are also arranged in a rectangular array. The number of crankshaft placement holes 2 is 6X5, that is, the crankshaft placement holes 2 are arranged in 6 rows and 5 columns, totaling thirty; the number of through holes 4 is 5X4, that is, the through holes 4 are arranged in 5 rows and 4 columns, totaling twenty; arranging the crankshaft placement holes 2 and the through holes 4 in a rectangular array can maximize the number of crankshaft placement holes 2, and also reserve a certain space for the arrangement of the protrusions 3. Secondly, the number of rows and columns of the crankshaft placement holes 2 is increased by one more than the number of rows and columns of the through holes 4, that is, the number of crankshaft placement holes 2 is increased as much as possible. Of course, this is only one solution listed in this embodiment, and the specific number and arrangement method can be diverse, and can also be set according to actual production needs.

[0026] In this embodiment, the crankshaft placement holes 2 and the through holes 4 are also staggered. Specifically, Figure 1 As shown, 5 rows and 4 columns of through holes 4 are distributed between 6 rows and 5 columns of crankshaft placement holes 2, that is, each row of crankshaft placement holes 2 and each row of through holes 4 are adjacent and staggered, and each column of crankshaft placement holes 2 and each column of through holes 4 are adjacent and staggered, so that a through hole 4 structure is arranged at the four corners of each crankshaft placement hole 2 (relative to the crankshaft placement hole 2 in the middle of the frame 1), and since there is a protrusion 3 on the upper, lower, left and right sides of the crankshaft placement hole 2, the protrusion 3 is actually also surrounded by the through hole 4. Figure 1As shown, each through hole 4 has two protrusions 3 on the upper, lower, left and right sides respectively (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 in the phosphating tank for phosphating, and the phosphating liquid in the phosphating tank is in a flowing state; because the crankshaft placement hole 2 is placed with the crankshaft 12, the phosphating liquid on the upper and lower sides of the frame 1 cannot flow effectively, so through the through hole 4, the phosphating liquid on both sides of the frame 1 can flow, thereby achieving effective phosphating of the crankshaft body 12.3 and the crankshaft head 12.1 and the 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 liquid at the through hole 4 can make the phosphating liquid in the gap flow as well, thereby ensuring the phosphating effect of the lower surface of the fan-shaped substrate 12.2.

[0027] It should be noted that the protrusion 3 is designed to be curved, and the curved opening of the protrusion 3 structure faces one side of the crankshaft placement hole 2, and the four protrusions 3 on the peripheral side of the crankshaft placement 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; to ensure the phosphating effect of the fan-shaped substrate 12.2 of the crankshaft 12. A rounded corner is provided on the upper surface of the protrusion 3, which can reduce the stress inside the protrusion 3 on the one hand and prevent the protrusion 3 from being easily damaged, and on the other hand, it can also protect the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12.

[0028] An axial long hole 5 is also provided on the lower surface of the crankshaft placement hole 2. The position of the axial long hole 5 corresponds to the position of the crankshaft placement hole 2. The axial long hole 5 is also a through hole structure. The length of the axial long hole 5 is greater than the thickness of the frame 1 (about 2 times), and the axis of the axial long 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 part of the lower part of the crankshaft 12 (crankshaft body 12.3) is located in the axial long hole 5, thereby improving the stability of the crankshaft 12 and preventing the crankshaft 12 from shaking violently during the turnover process. The radial dimension of the axial long 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 part of the lower part of the crankshaft 12 (crankshaft body 12.3) is located in the axial long hole 5, and there is a certain gap between the outer surface of the crankshaft body 12.3 and the axial long hole 5. This partial gap can accommodate the phosphating liquid in the phosphating tank, so that the surface of the crankshaft 12 can be phosphated.

[0029] It should be noted that the frame 1 is a plastic part made of plastic injection molding, which can reduce the weight of the frame 1 on the one hand, and is also beneficial for preventing it from being damaged in the phosphating solution on the other hand. In addition, the crankshaft placement hole 2, the through hole 4, the protrusion 3 and the axial long hole 5 on the frame 1 are all integrated structures, so that the frame structure is easy to manufacture.

[0030] The frame 1 is also provided with waist holes 6, which are distributed at the edge of the frame 1. Figure 1 As shown, the waist hole 6 is also a hole structure that runs through the surface of the frame 1. The waist hole 6 is in the shape of a long strip. It should be noted that at the position of the outermost crankshaft placement hole 2, a waist hole 6 is provided between every two adjacent crankshaft placement holes 2. The waist hole 6 and the outermost protrusion 3 are located on the same straight line, that is, a waist hole 6 is provided between the two protrusions 3. Similarly, relative to the crankshaft placement hole 2 outside the frame 1, the circle formed by the four protrusions 3 on the upper and lower left and right sides of the crankshaft placement hole 2 intersects or is tangent to the waist hole 6. The waist hole 6 can be used for the take-and-place turnover of the frame 1 on the one hand, and on the other hand, it is also conducive to the phosphating liquid flowing on both sides of the frame 1 to improve the phosphating effect of the crankshaft 12 placed outside the frame 1. Similarly, a support portion 7 is provided on the edge side of the frame 1, and the support portion 7 can support the frame 1, which is conducive to the frame 1 being placed in the turnover box.

[0031] Example 2: Figures 1 to 5 A compressor crankshaft phosphating turnover frame shown in the figure includes a frame body 1, the frame body 1 is a thin plate structure as a whole, a plurality of crankshaft placement holes 2 are opened on the surface of the frame body 1, the crankshaft placement holes 2 are hole structures that penetrate the frame body 1, and a plurality of through-holes 4 are also provided on the frame body 1, and the through-holes 4 are also hole structures that penetrate the frame body 1, wherein the crankshaft placement holes 2 can place the compressor crankshaft 12 structure, and are used for the turnover, degreasing, washing, surface adjustment, phosphating, drying and other processes of the crankshaft 12; and the through-holes 4 can reduce the consumables used in the frame body 1 and the overall weight of the frame body 1 on the one hand, and can also improve the flow effect of the phosphating solution during the phosphating process of the crankshaft 12 on the other hand, so as to promote the contact effect between the surface of the crankshaft 12 and the phosphating solution, thereby improving the phosphating effect of the crankshaft 12.

[0032] like Figure 1 As shown, a protrusion 3 structure is also provided on the upper surface of the frame 1, and the protrusion 3 is provided at a circumferential position of the crankshaft placement hole 2, and a certain distance is designed between the protrusion 3 and the crankshaft placement hole 2 to avoid interference between the protrusion 3 and the crankshaft placement hole 2 and damage to the protrusion 3 or the crankshaft placement hole 2. Figure 3As shown, the compressor crankshaft 12 includes a crankshaft head 12.1 and a crankshaft body 12.3, and a fan-shaped base plate 12.2 is arranged between the crankshaft head 12.1 and the crankshaft body 12.3. When the crankshaft 12 is placed in the crankshaft placement 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 supports the fan-shaped base plate 12.2 of the crankshaft 12; specifically, four protrusions 3 are arranged circumferentially of each crankshaft placement hole 2, and the protrusions 3 are evenly distributed around the crankshaft placement hole 3, that is, on the upper side of the crankshaft placement hole 2. A protrusion 3 structure is arranged on the lower left and right sides, and the fan-shaped substrate 12.2 of the crankshaft 12 can at least contact two adjacent protrusions 3 to achieve the placement of the crankshaft 12. At the same time, the protrusion 3 separates the fan-shaped substrate 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 in the phosphating solution together, the phosphating solution can enter the gap between the lower surface of the fan-shaped substrate 12.2 and the upper surface of the frame 1, thereby improving the phosphating effect of the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12 and improving the overall performance of the crankshaft.

[0033] Specifically, the crankshaft placement holes 2 are arranged in a rectangular array, and the through holes 4 are also arranged in a rectangular array. The number of crankshaft placement holes 2 is 6X5, that is, the crankshaft placement holes 2 are arranged in 6 rows and 5 columns, totaling thirty; the number of through holes 4 is 5X4, that is, the through holes 4 are arranged in 5 rows and 4 columns, totaling twenty; arranging the crankshaft placement holes 2 and the through holes 4 in a rectangular array can maximize the number of crankshaft placement holes 2, and also reserve a certain space for the arrangement of the protrusions 3. Secondly, the number of rows and columns of the crankshaft placement holes 2 is increased by one more than the number of rows and columns of the through holes 4, that is, the number of crankshaft placement holes 2 is increased as much as possible. Of course, this is only one solution listed in this embodiment, and the specific number and arrangement method can be diverse, and can also be set according to actual production needs.

[0034] In this embodiment, the crankshaft placement holes 2 and the through holes 4 are also staggered. Specifically, Figure 1 As shown, 5 rows and 4 columns of through holes 4 are distributed between 6 rows and 5 columns of crankshaft placement holes 2, that is, each row of crankshaft placement holes 2 and each row of through holes 4 are adjacent and staggered, and each column of crankshaft placement holes 2 and each column of through holes 4 are adjacent and staggered, so that a through hole 4 structure is arranged at the four corners of each crankshaft placement hole 2 (relative to the crankshaft placement hole 2 in the middle of the frame 1), and since there is a protrusion 3 on the upper, lower, left and right sides of the crankshaft placement hole 2, the protrusion 3 is actually also surrounded by the through hole 4. Figure 1As shown, each through hole 4 has two protrusions 3 on the upper, lower, left and right sides respectively (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 in the phosphating tank for phosphating, and the phosphating liquid in the phosphating tank is in a flowing state; because the crankshaft placement hole 2 is placed with the crankshaft 12, the phosphating liquid on the upper and lower sides of the frame 1 cannot flow effectively, so through the through hole 4, the phosphating liquid on both sides of the frame 1 can flow, thereby achieving effective phosphating of the crankshaft body 12.3 and the crankshaft head 12.1 and the 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 liquid at the through hole 4 can make the phosphating liquid in the gap flow as well, thereby ensuring the phosphating effect of the lower surface of the fan-shaped substrate 12.2.

[0035] It should be noted that the protrusion 3 is designed to be curved, and the curved opening of the protrusion 3 structure faces one side of the crankshaft placement hole 2, and the four protrusions 3 on the peripheral side of the crankshaft placement 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; to ensure the phosphating effect of the fan-shaped substrate 12.2 of the crankshaft 12. A rounded corner is provided on the upper surface of the protrusion 3, which can reduce the stress inside the protrusion 3 on the one hand and prevent the protrusion 3 from being easily damaged, and on the other hand, it can also protect the lower surface of the fan-shaped substrate 12.2 of the crankshaft 12.

[0036] An axial long hole 5 is also provided on the lower surface of the crankshaft placement hole 2. The position of the axial long hole 5 corresponds to the position of the crankshaft placement hole 2. The axial long hole 5 is also a through hole structure. The length of the axial long hole 5 is greater than the thickness of the frame 1 (about 2 times), and the axis of the axial long 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 part of the lower part of the crankshaft 12 (crankshaft body 12.3) is located in the axial long hole 5, thereby improving the stability of the crankshaft 12 and preventing the crankshaft 12 from shaking violently during the turnover process. The radial dimension of the axial long 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 part of the lower part of the crankshaft 12 (crankshaft body 12.3) is located in the axial long hole 5, and there is a certain gap between the outer surface of the crankshaft body 12.3 and the axial long hole 5. This partial gap can accommodate the phosphating liquid in the phosphating tank, so that the surface of the crankshaft 12 can be phosphated.

[0037] like Figure 5As shown, a first rolling body 8 is arranged in the axial long hole 5. The first rolling body 8 is evenly distributed on the inner side of the axial long hole 2 and is circumferentially distributed. Four first rolling bodies 8 are arranged. The first rolling body 8 can be a ball structure or a roller structure. In this scheme, a roller structure is adopted as the first rolling body 8. The first rolling body 8 can rotate circumferentially in the axial long hole 5. Specifically, a receiving groove is arranged in the axial long hole 5 to accommodate the first rolling body 8, and the radial edge of the first rolling body 8 is located in the axial long hole 5 and is 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 body 8 in the axial long hole 5.

[0038] A rotating mechanism is also provided at the bottom of the axial long hole 5, and the rotating mechanism is detachably fixedly connected to the bottom of the axial long hole 5, specifically, it can be a snap connection or a knob lock; the rotating mechanism includes a support frame 9, a driving device 10 and a driving device base 13, the support frame 9 is a strip structure, the support frame 9 is provided with a plurality of strips, and are vertically distributed at the bottom of the axial long hole 5, and the bottom of all the support frames 9 forms a driving device base 13, and the driving device base 13 is provided with a driving device 10, and the driving device 10 is a small driver that can output torque; A turntable 14 is provided at the output end, and the turntable 14 is a circular boss structure. A second rotating body 11 is 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 body 11 is rotatably connected between the upper support plate 15 and the lower support plate 16, and rotates in fit with the conical surface. When the driving device 10 outputs torque, it drives the turntable 14 to rotate, and then drives the second rolling body 11 to rotate.

[0039] It should be noted that the radial edge of the second rolling body 11 is located outside the upper support plate 15 and the lower support plate 16, and 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 body 11 on the rotating mechanism, so that when the second rolling body 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 staggered with the protrusion 3, so that the original contact point between the fan-shaped substrate 12.2 and the protrusion 3 can also be phosphated in the phosphating solution, which improves the phosphating effect of the crankshaft and eliminates the phosphating dead angle. Among them, the crankshaft hole 12.4 at the bottom of the crankshaft 12 is an expanded hole shape, so the second rolling body 11 needs to be arranged tilted to a certain extent.

[0040] It should be noted that a perforation 17 is also provided in the middle of the turntable 14, through which the phosphating solution can enter the crankshaft hole 12.4 and then enter the crankshaft 12, thereby preventing the phosphating solution from being unable to enter the crankshaft 12 due to the rotating mechanism, thereby affecting the phosphating effect.

[0041] A groove is provided on the driving device base 13 for placing the driving device 10, and an elastic member 18 is provided in the groove, one end of the elastic member 18 abuts against the bottom of the driving device 10, and the other end abuts against the groove, so that the driving device 10 can produce a certain degree of up and down displacement in 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 body 11, and continues to move downward, pressing the driving mechanism to a certain extent to ensure that the crankshaft hole 12.4 and the second rolling body 11 have contact force, thereby improving the torque transmission effect. At this time, the elastic member 18 can produce deformation to adjust the position of the driving mechanism. In addition, due to the action of the elastic member 18, the driving mechanism can also play a certain supporting role on 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 to prevent the fan-shaped substrate 12.2 from being stuck and unable to rotate. In actual operation, the speed of the crankshaft 12 can be set to 10 revolutions per minute. It is not necessary to rotate it too fast. It is only necessary to make the bottom of the fan-shaped substrate 12.2 contact with the phosphating solution to achieve phosphating without dead angles.

[0042] It should be noted that the frame 1 is a plastic part made of plastic injection molding, which can reduce the weight of the frame 1 on the one hand, and is also beneficial for preventing it from being damaged in the phosphating solution on the other hand. In addition, the crankshaft placement hole 2, the through hole 4, the protrusion 3 and the axial long hole 5 on the frame 1 are all integrated structures, so that the frame structure is easy to manufacture.

[0043] The frame 1 is also provided with waist holes 6, which are distributed at the edge of the frame 1. Figure 1As shown, the waist hole 6 is also a hole structure that runs through the surface of the frame 1. The waist hole 6 is in the shape of a long strip. It should be noted that at the position of the outermost crankshaft placement hole 2, a waist hole 6 is provided between every two adjacent crankshaft placement holes 2. The waist hole 6 and the outermost protrusion 3 are located on the same straight line, that is, a waist hole 6 is provided between the two protrusions 3. Similarly, relative to the crankshaft placement hole 2 outside the frame 1, the circle formed by the four protrusions 3 on the upper and lower left and right sides of the crankshaft placement hole 2 intersects or is tangent to the waist hole 6. The waist hole 6 can be used for the take-and-place turnover of the frame 1 on the one hand, and on the other hand, it is also conducive to the phosphating liquid flowing on both sides of the frame 1 to improve the phosphating effect of the crankshaft 12 placed outside the frame 1. Similarly, a support portion 7 is provided on the edge side of the frame 1, and the support portion 7 can support the frame 1, which is conducive to the frame 1 being placed in the turnover box.

Claims

1. A compressor crankshaft phosphating turnover frame, It is characterized in that The invention comprises a frame body, wherein the frame body is provided with a plurality of crankshaft placement holes, the crankshaft placement holes are distributed at intervals and a plurality of protrusions are provided around the crankshaft placement holes.

2. A compressor crankshaft phosphating turnover frame according to claim 1, Its characteristics are: The frame is also provided with a plurality of through holes, the through holes are spaced apart from the crankshaft placement holes, and the through holes are distributed between the crankshaft placement holes.

3. A compressor crankshaft phosphating turnover frame according to claim 2, Its characteristics are: The crankshaft placement holes and the through holes are arranged in an array, and the protrusions are located around the crankshaft placement holes and around the through holes.

4. A compressor crankshaft phosphating turnover frame according to claim 1, Its characteristics are: The protrusion is in a curved shape, the protrusion is bent toward the crankshaft placement hole, and the surface of the protrusion is provided with a rounded corner.

5. A compressor crankshaft phosphating turnover frame according to any one of claims 1 to 4, Its characteristics are: The side of the crankshaft placement hole away from the frame distribution protrusion is an axial long hole, and the axial long hole is arranged concentrically with the crankshaft placement hole.

6. A compressor crankshaft phosphating turnover frame according to claim 5, Its characteristics are: The radial dimension of the axial long hole is greater than the radial dimension of the crankshaft placement hole.

7. A compressor crankshaft phosphating turnover frame according to any one of claims 1 to 4, Its characteristics are: The frame is provided with waist holes, which are distributed outside all the crankshaft placement holes, and the edge of the frame is also provided with a support portion.

8. The compressor crankshaft phosphating turnover frame according to claim 6, Its characteristics are: A first rolling body is arranged in the axial long hole, and the first rolling body is evenly distributed on the inner surface of the axial long hole in the circumferential direction.

9. A compressor crankshaft phosphating turnover frame according to claim 8, Its characteristics are: The axial long hole is detachably connected to a rotating mechanism at a side away from the frame body. The rotating mechanism comprises a support frame. The support frames are vertically spaced and arranged with a driving device at the bottom of the support frame.

10. A compressor crankshaft phosphating turnover frame according to claim 9, Its characteristics are: The output end of the driving device is provided with a second rolling body, and the second rolling body is arranged in an inclined manner.

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