A planetary gear heat treatment scratch protection tooling fixture

Abstract

The application relates to the technical field of improving the machining efficiency and machining quality of a planetary gear, in particular to a planetary gear heat treatment scratch protection tool clamp, which comprises a mounting frame, a plurality of material rods are detachably connected to the mounting frame, the material rods are arranged at intervals in the horizontal direction, the material rods are used for carrying planetary gears, a plurality of spring washers are arranged on the material rods, and the two sides of the spring washers are respectively in abutment with the side walls of two adjacent planetary gears; the application has the advantages of improving the machining efficiency and machining quality of the planetary gear.

Description

Technical Field

[0001] This application relates to the field of planetary gear machining technology, and in particular to a planetary gear heat treatment impact protection fixture. Background Technology

[0002] Currently, during the heat treatment of this precision component planetary gear, the planetary gears are scattered in the carburizing furnace, causing collisions between products and resulting in damage to the tooth surfaces and end faces. This affects the machining accuracy of the subsequent precision rolling process, causing abnormal noise and noise quality problems when the entire reducer is powered on. Furthermore, the scattered placement of the planetary gears in the carburizing furnace results in uneven carburizing layer depth for each product, leading to inconsistent carburizing hardness. Summary of the Invention

[0003] To improve the machining efficiency and quality of planetary gears, this application provides a planetary gear heat treatment impact protection fixture.

[0004] The technical solution provided in this application for a planetary gear heat treatment impact protection fixture is as follows:

[0005] A protective fixture for planetary gears during heat treatment includes a mounting frame with several material rods detachably connected to it. The material rods are spaced apart in a horizontal direction and are used to support the planetary gears. Several spring washers are fitted on the material rods, and the two sides of each spring washer abut against the sidewalls of two adjacent planetary gears.

[0006] By adopting the above technical solution, after the planetary gears are rough rolled, the inner holes of the products are sequentially inserted into the material bar, separated by spring washers, and neatly arranged on the mounting frame. During heat treatment, the entire protective fixture filled with planetary gears is placed into the carburizing furnace, which allows the planetary gears to be arranged in an orderly manner and isolated, solving the problem of damage to the tooth surfaces and end faces of the planetary gears, improving the machining accuracy of the subsequent fine rolling process, and solving the quality problem of abnormal noise and noise when the planetary gear reducer is powered on. The products are neatly placed on the protective fixture, and the carburized layer depth of each product is uniform, and the carburized hardness of the products is consistent.

[0007] Preferably, the mounting frame has several V-shaped grooves, and one end of the material rod is supported in the V-shaped groove.

[0008] By adopting the above technical solution, the shape of the V-groove helps to ensure a tight fit between the rod and the mounting bracket, thereby preventing the rod from loosening or shaking during use. At the same time, the V-groove also facilitates the assembly and disassembly of the rod.

[0009] Preferably, a pad is provided at the bottom of the mounting bracket.

[0010] By adopting the above technical solution, firstly, the pads provide additional support and stability, effectively distributing and bearing the pressure of the load above the mounting bracket. This helps to evenly distribute the weight, reduce pressure points on the mounting bracket, and prevent deformation or damage caused by excessive load. Secondly, the pads also act as shock absorbers and buffers, absorbing energy from external vibrations or impacts, reducing the vibration transmitted to the mounting bracket and the equipment on it, thus helping to improve the stability and lifespan of the overall structure.

[0011] Preferably, a sliding seat is slidably disposed on the mounting frame in the horizontal direction, and a feeding seat is disposed on the sliding seat. The feeding seat is disposed along the arrangement direction of the material rod. A sliding groove is formed in the sliding seat, and a pressure plate is slidably disposed in the sliding groove. The sliding groove penetrates the lower surface of the sliding seat. A material groove is disposed on one side of the feeding seat, and the material groove is connected to the sliding groove. The material groove is used to load spring washers. The spring washers are provided with notches, and the notches allow the spring washers to be sleeved on the material rod. A control component for driving the pressure plate to slide is disposed on the sliding seat.

[0012] By adopting the above technical solution, during operation, the spring washer is loaded into the material trough, which is connected to the sliding groove, ensuring that the spring washer can smoothly enter the sliding seat. As the sliding seat slides, the pressure plate is pushed to slide along the direction of the material rod. Since the spring washer is fitted onto the material rod, it is well guided during the sliding of the pressure plate and is eventually locked into the material rod. The entire working process, through the coordinated operation of the sliding seat, the loading seat, the pressure plate, and the control components, achieves precise locking of the spring washer into the material rod, providing crucial support for the stability and reliability of the mounting frame. This design effectively simplifies the installation process of the spring washer and improves production efficiency and operational reliability.

[0013] Preferably, the control component includes a crank-connecting rod-slider mechanism and a rocker arm. The turntable of the crank-connecting rod-slider mechanism is rotatably supported on the sliding seat. The slider of the crank-connecting rod-slider mechanism is slidably disposed on the sliding seat and fixed to the pressure plate. The rocker arm is coaxially fixed to the turntable of the crank-connecting rod-slider mechanism.

[0014] By adopting the above technical solution, during operation, when the operator controls the pressure rod to rotate, the turntable of the crank-connecting rod-slider mechanism rotates. This rotational motion is transmitted to the slider of the crank-connecting rod-slider mechanism, causing the slider to slide along the track on the sliding seat. Since the slider of the crank-connecting rod-slider mechanism is fixed to the pressure plate, the pressure plate also slides, pushing the spring washer along the direction of the material rod.

[0015] Preferably, the mounting bracket has a guide groove, and the sliding seat has a guide block, which is slidably disposed in the guide groove.

[0016] By adopting the above technical solution, the existence of the guide groove provides a clear positioning track for the sliding seat, and the guide block is slidably set in the guide groove to achieve precise positioning along the track.

[0017] Preferably, a drive assembly is provided between the crank-connecting rod slider mechanism and the mounting frame. The drive assembly includes an inner ratchet mechanism, a transmission gear, and a transmission rack. The outer wheel of the inner ratchet mechanism is rotatably supported on one side of the mounting frame and is coaxially arranged with the turntable of the crank-connecting rod slider mechanism. The inner wheel of the inner ratchet mechanism is rotatably supported on one side of the mounting frame and is coaxially fixed with the transmission gear. The transmission rack is disposed on the side wall of the mounting frame, and the transmission gear and the transmission rack mesh with each other.

[0018] By adopting the above technical solution, when the turntable of the crank-connecting rod-slider mechanism rotates in the forward direction, it drives the outer wheel of the inner ratchet mechanism to rotate. Due to the unidirectional transmission characteristic of the inner ratchet mechanism, the inner wheel of the inner ratchet mechanism remains stationary, thereby keeping the position of the sliding seat stationary. This allows the pressure plate to press the spring washer smoothly. When the turntable of the crank-connecting rod-slider mechanism rotates in the reverse direction to reset, the outer wheel of the inner ratchet mechanism rotates in the reverse direction, thereby causing the inner wheel of the inner ratchet mechanism to rotate. This causes the transmission gear to rotate synchronously. Since the transmission rack is fixed to the side wall of the mounting bracket, the transmission gear rolls relative to the transmission rack, thereby driving the sliding seat to slide.

[0019] Preferably, the transmission rack is slidably mounted on the mounting bracket in a vertical direction, and the mounting bracket is provided with a locking pin for locking the transmission rack.

[0020] By adopting the above technical solution, when the sliding seat moves to the end, the locking pin is released, the transmission rack is controlled to slide, the transmission rack is disengaged from the transmission gear, the limit on the transmission gear is released, and then the sliding seat can be controlled to slide and reset in the opposite direction, thereby realizing the adjustment of the sliding seat.

[0021] Preferably, the mounting bracket is provided with a return spring, one end of which is fixed to the transmission rack, and the return spring is used to reset the transmission rack.

[0022] By adopting the above technical solution, the transmission rack can automatically reset under the elastic force of the return spring, improving the convenience of operation.

[0023] Preferably, both the guide groove and the sidewall of the guide block are provided with magnets, and the two sets of magnets attract each other.

[0024] By adopting the above technical solution, the two sets of magnets attract each other, which can achieve the initial positioning of the sliding seat and the transmission gear, thus making it easier for the operator to reset and engage the transmission rack and transmission gear.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. After the planetary gears are rough rolled, the inner holes of the products are inserted into the feed bar one by one, separated by spring washers, and neatly arranged on the mounting frame. During heat treatment, the entire protective fixture filled with planetary gears is placed into the carburizing furnace, so that the planetary gears can be arranged in an orderly manner and isolated, which solves the problem of damage to the tooth surface and end face of the planetary gears, improves the machining accuracy of the subsequent fine rolling process, and solves the quality problem of abnormal noise and noise when the planetary gear reducer is powered on. The products are neatly placed on the protective fixture, and the carburized layer of each product is uniform in depth and the carburized hardness of the products is consistent.

[0027] 2. During operation, the spring washer is loaded into the feed trough, which is connected to the sliding groove, ensuring the smooth entry of the spring washer into the sliding seat. The spring washer itself is designed with a notch, allowing it to be fitted onto the feed rod. As the sliding seat slides, the pressure plate is pushed to slide along the feed rod. Because the spring washer is fitted onto the feed rod, it is well guided during the sliding of the pressure plate and is ultimately engaged with the feed rod. The entire working process, through the coordinated operation of the sliding seat, the feed seat, the pressure plate, and the control components, achieves precise engagement of the spring washer into the feed rod, providing crucial support for the stability and reliability of the mounting frame. This design effectively simplifies the spring washer installation process, improving production efficiency and operational reliability.

[0028] 3. The two sets of magnets attract each other, which can achieve the initial positioning of the sliding seat and the transmission gear, thus making it easier for the operator to reset and engage the transmission rack and transmission gear. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a planetary gear heat treatment impact protection fixture according to Embodiment 1 of this application.

[0030] Figure 2 This is a schematic diagram of the overall structure of a planetary gear heat treatment impact protection fixture according to Embodiment 2 of this application.

[0031] Figure 3 This is a diagram showing the cooperation relationship between the sliding seat, the control component, and the drive component in Embodiment 2 of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Mounting bracket; 11. V-shaped plate; 111. V-shaped groove; 12. V-shaped connecting plate; 121. Guide groove; 122. Receiving groove; 123. Sliding plate; 1231. Slot; 124. Locking pin; 125. Return spring; 13. V-shaped baffle; 2. Material rod; 3. Spring washer; 4. Pad; 5. Sliding seat; 51. Pressure plate; 52. Sliding groove; 521. Bearing rod; 53. Loading seat; 531. Material groove; 54. Bearing frame; 6. Control assembly; 61. Crank-connecting rod-slider mechanism; 62. Rocker arm; 7. Drive assembly; 71. Internal ratchet mechanism; 72. Transmission gear; 73. Transmission rack. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0034] The terms "up," "down," "left," "right," "front," "rear," "side," "above," and "below" mentioned or potentially used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directions should not be interpreted as restrictive terms.

[0035] This application discloses a planetary gear heat treatment impact protection fixture.

[0036] Example 1:

[0037] Reference Figure 1 A planetary gear heat treatment impact protection fixture includes a mounting frame 1. In this embodiment, the mounting frame 1 consists of a V-shaped plate 11, a V-shaped connecting plate 12, and a V-shaped baffle 13. Two V-shaped plates 11 are provided, parallel to each other. Two V-shaped connecting plates are also provided. The two V-shaped connecting plates 12 are connected end-to-end to the two V-shaped plates 11, and the V-shaped plates 11 and V-shaped connecting plates 12 are perpendicular to each other and fixed with bolts. Furthermore, the V-shaped plates 11 have several V-shaped grooves 111 along their length. The V-shaped baffle 13 is fixed to the side wall of the V-shaped plate 11 by bolts, covering one side of the V-shaped grooves 111. That is, the V-shaped grooves 111 corresponding to the opposite side walls of the two V-shaped plates 11 are open grooves.

[0038] Furthermore, the V-groove 111 between the two V-plates 11, located on the same straight line, rotatably supports the material rods 2. That is, there are several material rods 2, which are spaced apart in the horizontal direction. The material rods 2 are used to support the planetary gears. At the same time, several spring washers 3 are sleeved on the material rods 2. In this embodiment, the spring washers 3 are arranged in a ring shape, and the two sides of the spring washers 3 respectively abut against the side walls of two adjacent planetary gears.

[0039] Therefore, after the planetary gears are rough rolled, the inner holes of the products are inserted into the material rod 2 in sequence, separated by spring washers 3, and neatly arranged on the mounting frame 1. During heat treatment, the entire protective fixture filled with planetary gears is placed into the carburizing furnace, so that the planetary gears can be arranged in an orderly manner and isolated, solving the problem of damage to the tooth surface and end face of the planetary gears, improving the machining accuracy of the subsequent fine rolling process, and solving the quality problem of abnormal noise and noise when the planetary gear reducer is powered on. The products are neatly placed on the protective fixture, and the carburized layer of each product is uniform in depth and the carburized hardness of the products is consistent.

[0040] Meanwhile, the shape of the V-groove 111 helps to ensure a tight fit between the rod 2 and the mounting bracket 1, thereby preventing the rod 2 from becoming loose or shaking during use. At the same time, the V-groove 111 also facilitates the assembly and disassembly of the rod 2.

[0041] Furthermore, the lower surfaces of the V-shaped plate 11 and the V-shaped connecting plate 12 are vertically fixed with pads 4. The pads 4 provide additional support and stability, effectively distributing and bearing the pressure of the load above the mounting bracket 1. This helps to evenly distribute the weight, reduce pressure points on the mounting bracket 1, and prevent deformation or damage due to excessive load. Secondly, the pads 4 also act as shock absorbers and buffers, absorbing energy from external vibrations or impacts, reducing the vibration transmitted to the mounting bracket 1 and the equipment on it, thus contributing to improved overall structural stability and lifespan.

[0042] The implementation principle of the planetary gear heat treatment impact protection fixture in this application embodiment is as follows:

[0043] Correspondingly, after the planetary gears are rough rolled, the inner holes of the products are inserted into the material rod 2 in sequence, separated by spring washers 3, and neatly arranged on the mounting frame 1. During heat treatment, the entire protective fixture filled with planetary gears is placed into the carburizing furnace, so that the planetary gears can be arranged in an orderly manner and isolated, solving the problem of damage to the tooth surface and end face of the planetary gears, improving the machining accuracy of the fine rolling process in the next process, and solving the quality problem of abnormal noise and noise when the planetary gear reducer is powered on. The products are neatly placed on the protective fixture, and the carburized layer of each product is uniform in depth and the carburized hardness of the products is consistent.

[0044] Example 2:

[0045] Reference Figure 2 and Figure 3The difference from Embodiment 2 is that a sliding seat 5 is slidably disposed on the upper surface of the V-shaped plate 11. The sliding seat 5 slides along the length direction of the material rod 2. In this embodiment, the sliding seat 5 spans between the two V-shaped plates 11. A sliding groove 52 is provided on the sliding seat 5, which penetrates the lower surface of the sliding seat 5. Correspondingly, a feeding seat 53 is disposed on the sliding seat 5. The feeding seat 53 is disposed along the arrangement direction of the material rod 2. The feeding seat 53 is inclined, with the end of the feeding seat 53 away from the sliding seat 5 inclined downward toward the end closer to the sliding seat 5.

[0046] On the other hand, a pressure plate 51 is slidably disposed within the sliding groove 52. The sliding groove 52 penetrates the lower surface of the sliding seat 5. A material trough 531 is disposed on one side of the loading seat 53, and the material trough 531 communicates with the sliding groove 52. The material trough 531 is used to load the spring washer 3. In this embodiment, the spring washer 3 is provided with a notch, which allows the spring washer 3 to be sleeved on the material rod 2. At the same time, the inner wall of the sliding groove 52 rotatably supports two bearing rods 521. There is a certain distance between the ends of the two bearing rods 521. A torsion spring is disposed between the end of the bearing rod 521 and the groove wall of the sliding groove 52. In its natural state, the bearing rod 521 is slightly inclined downward. Correspondingly, the end of the bearing rod 521 forms a groove. When the spring washer 3 slides from the material trough 531 into the sliding groove 52, the spring washer 3 is hung on the groove. In addition, a control component 6 for driving the pressure plate 51 to slide is disposed on the sliding seat 5.

[0047] Correspondingly, during operation, the planetary gear is fitted onto the feed rod 2, and the feed rod 2 is then installed in the V-groove 111. The spring washer 3 is loaded into the feed trough 531, which is connected to the sliding groove 52, ensuring that the spring washer 3 can smoothly enter the sliding seat 5. The spring washer 3 itself is designed with a notch, allowing it to be fitted onto the feed rod 2. As the sliding seat 5 slides, the pressure plate 51 is pushed to slide along the feed rod 2. Since the spring washer 3 is hung on the support rod 521, and the support rod 521 is set slightly inclined downwards, the spring washer 3 remains upright. Furthermore, it should be noted that when the first spring washer 3 is hung on the support rod 521, the next spring washer 3 is located at the opening of the feed trough 531 and abuts against the first spring washer 3.

[0048] Correspondingly, during the sliding process of the pressure plate 51, the lower surface of the pressure plate 51 presses against the top of the spring washer 3, causing the bearing rod 521 to rotate under pressure. The torsion spring is compressed, allowing the spring washer 3 to pass over the bearing rod 521 and, under the pressure of the pressure plate 51, finally be inserted into the material rod 2. During this process, the side wall of the pressure plate 51 blocks the material groove 531, preventing the next spring washer 3 from entering the workstation prematurely. Similarly, after the pressure plate 51 moves upward a certain distance, it disengages from the bearing rod 521. Under the elastic force of the torsion spring, the bearing rod 521 returns to its original position, simultaneously releasing the blockage of the groove 531, allowing the next spring washer 3 to fall smoothly. After the installation of the spring washer 3 at this workstation is completed, the sliding seat 5 is controlled to move to the next workstation to continue processing.

[0049] Therefore, the entire working process, through the coordinated operation of the sliding seat 5, the loading seat 53, the pressure plate 51, and the control component 6, achieves precise insertion of the spring washer 3 into the feeding rod 2, providing crucial support for the stability and reliability of the mounting frame 1. This design effectively simplifies the installation process of the spring washer 3, improving production efficiency and operational reliability.

[0050] It should be noted that in this embodiment, one of the V-shaped baffles 13 and the V-shaped plate 11 are hinged so that the operator can quickly flip the V-shaped baffle 13 and open the slot of the V-shaped groove 111 to facilitate the horizontal installation of the material rod 2 carrying the planetary gear. This will not be elaborated further here.

[0051] Furthermore, after the planetary gear is fitted onto the material rod 2, due to the structural characteristics of the planetary gear, the edges of the planetary gear are chamfered. When the position of the sliding seat 5 moves slightly off, within the allowable error, the guiding effect of the chamfer still allows the spring washer 3 to be inserted between two adjacent planetary gears. In this embodiment, the thickness of the spring washer 3 is set between 0.5CM and 1CM, specifically 0.5CM. Although the stacking of the spring washer 3 will change the specific installation position of the subsequent spring washer 3, when combined with the effect of the chamfer, the impact of the above situation on the overall installation is small, and will not be elaborated further here.

[0052] Specifically, the control component 6 includes a crank-connecting rod-slider mechanism 61 and a rocker arm 62. A support frame 54 is mounted on the side wall of the sliding seat 5. The turntable of the crank-connecting rod-slider mechanism 61 is rotatably supported on the support frame 54 of the sliding seat 5. The slider of the crank-connecting rod-slider mechanism 61 is slidably disposed on the sliding seat 5 and fixed to the pressure plate 51. Correspondingly, a movable groove is provided on the side wall of the sliding seat 5. The slider of the crank-connecting rod-slider mechanism 61 is slidably disposed in the movable groove, which is connected to the sliding groove 52. In addition, the rocker arm 62 is coaxially fixed to the turntable of the crank-connecting rod-slider mechanism 61.

[0053] Therefore, when the operator controls the pressure rod to rotate, the turntable of the crank-connecting rod slider mechanism 61 rotates. This rotational motion is transmitted to the slider of the crank-connecting rod slider mechanism 61, causing the slider of the crank-connecting rod slider mechanism 61 to slide along the track on the sliding seat 5. Since the slider of the crank-connecting rod slider mechanism 61 is fixed together with the pressure plate 51, the pressure plate 51 also slides, pushing the spring washer 3 along the direction of the material rod 2.

[0054] Furthermore, a guide groove 121 is provided on the V-shaped connecting plate 12. The guide groove 121 is arranged along the length direction of the material rod 2. A guide block (not shown in the figure) is provided on the sliding seat 5. The guide block is slidably arranged in the guide groove 121. In this embodiment, the cross-sections of the guide block and the guide groove 121 are both T-shaped.

[0055] Correspondingly, the existence of the guide groove 121 provides a clearly positioned track for the sliding seat 5, while the guide block is slidably set in the guide groove 121, achieving precise positioning along the track.

[0056] In addition, magnets (not shown in the figure) are provided on the side walls of the guide groove 121 and the guide block. The two sets of magnets attract each other, which can achieve the initial positioning of the sliding seat 5 and the transmission gear 72, so that the operator can reset and engage the transmission rack 73 and the transmission gear 72.

[0057] On the other hand, a drive assembly 7 is provided between the crank-connecting rod slider mechanism 61 and the mounting frame 1. The drive assembly 7 includes an inner ratchet mechanism 71, a transmission gear 72, and a transmission rack 73. The outer wheel of the inner ratchet mechanism 71 is rotated and supported on one side of the support frame 54 and is coaxially arranged with the turntable of the crank-connecting rod slider mechanism 61. The inner wheel of the inner ratchet mechanism 71 is rotated and supported on one side of the support frame 54 and is coaxially fixed with the transmission gear 72. The transmission rack 73 is provided on the side wall of the V-shaped connecting plate 12 and is arranged along the length direction of the V-shaped connecting arm. The transmission gear 72 and the transmission rack 73 mesh with each other.

[0058] Therefore, when the turntable of the crank-connecting rod slider mechanism 61 rotates in the forward direction, it drives the outer wheel of the inner ratchet mechanism 71 to rotate. Due to the unidirectional transmission characteristic of the inner ratchet mechanism 71, the inner wheel of the inner ratchet mechanism 71 remains stationary, thereby keeping the position of the sliding seat 5 stationary. This allows the pressure plate 51 to press the spring washer 3 smoothly. When the turntable of the crank-connecting rod slider mechanism 61 rotates in the reverse direction to reset, the outer wheel of the inner ratchet mechanism 71 rotates in the reverse direction, thereby causing the inner wheel of the inner ratchet mechanism 71 to rotate. This causes the transmission gear 72 to rotate synchronously. Since the transmission rack 73 is fixed to the side wall of the mounting bracket 1, the transmission gear 72 rolls relative to the transmission rack 73, thereby causing the sliding seat 5 to slide.

[0059] In addition, one of the V-shaped connecting plates 12 has a receiving groove 122 on its side wall. A sliding plate 123 is slidably disposed in the receiving groove 122 in the vertical direction. The transmission rack 73 is fixed to the side wall of the sliding plate 123. A locking pin 124 is slidably disposed in the side wall of the V-shaped connecting plate 12. A locking groove 1231 is disposed in the side wall of the sliding plate 123. When the sliding plate 123 is in the uppermost position, the locking pin 124 passes into the receiving groove 122 and engages with the locking groove 1231. At this time, the transmission rack 73 and the transmission gear 72 mesh with each other.

[0060] When the sliding seat 5 moves to its end, the locking pin 124 is released, and the transmission rack 73 is controlled to slide. The transmission rack 73 disengages from the transmission gear 72, releasing the limit on the transmission gear 72. This allows the sliding seat 5 to be controlled to slide and reset in the opposite direction, thereby achieving the adjustment of the sliding seat 5.

[0061] Furthermore, a return spring 125 is installed inside the receiving groove 122. One end of the return spring 125 is fixed to the transmission rack 73, and the return spring 125 is used to reset the transmission rack 73. Under the elastic force of the return spring 125, the transmission rack 73 can automatically reset, improving the convenience of operation.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective fixture for planetary gears during heat treatment, characterized in that, The system includes a mounting frame (1), on which several material rods (2) are detachably connected. The material rods (2) are spaced apart in the horizontal direction. The material rods (2) are used to support planetary gears. Several spring washers (3) are fitted on the material rods (2). The two sides of the spring washers (3) abut against the side walls of two adjacent planetary gears, respectively. A sliding seat (5) is slidably arranged in the horizontal direction on the mounting frame (1). A loading seat (53) is provided on the sliding seat (5). The loading seat (53) is arranged along the arrangement direction of the material rods (2). A sliding groove (52) is opened in the sliding seat (5). A pressure plate (51) is slidably arranged in the sliding groove (52). The sliding groove (52) penetrates the lower surface of the sliding seat (5). A pressure plate (51) is provided on one side of the loading seat (53). There is a material trough (531), which is connected to the sliding groove (52). The material trough (531) is used to load spring washers (3). The spring washers (3) are provided with notches, which allow the spring washers (3) to be sleeved on the material rods (2). The sliding seat (5) is provided with a control component (6) for driving the pressure plate (51) to slide. The inner wall of the sliding groove (52) rotatably supports two support rods (521). There is a certain distance between the ends of the two support rods (521). A torsion spring is provided between the end of the support rod (521) and the groove wall of the sliding groove (52). The end of the support rod (521) forms a groove, which is used to hang the spring washers (3) that slide from the material trough (531) into the sliding groove (52).

2. The planetary gear heat treatment impact protection fixture according to claim 1, characterized in that, The mounting bracket (1) has several V-shaped grooves (111), and one end of the material rod (2) is supported in the V-shaped grooves (111).

3. The planetary gear heat treatment impact protection fixture according to claim 1, characterized in that, The mounting bracket (1) has a pad (4) at its bottom.

4. The planetary gear heat treatment impact protection fixture according to claim 1, characterized in that, The control component (6) includes a crank-connecting rod slider mechanism (61) and a rocker arm (62). The turntable of the crank-connecting rod slider mechanism (61) is rotated and supported on the sliding seat (5). The slider of the crank-connecting rod slider mechanism (61) is slidably disposed on the sliding seat (5) and fixed to the pressure plate (51). The rocker arm (62) is coaxially fixed with the turntable of the crank-connecting rod slider mechanism (61).

5. A planetary gear heat treatment impact protection fixture according to claim 4, characterized in that, The mounting bracket (1) is provided with a guide groove (121), and the sliding seat (5) is provided with a guide block, which is slidably disposed in the guide groove (121).

6. A planetary gear heat treatment impact protection fixture according to claim 5, characterized in that, A drive assembly (7) is provided between the crank-connecting rod slider mechanism (61) and the mounting frame (1). The drive assembly (7) includes an inner ratchet mechanism (71), a transmission gear (72), and a transmission rack (73). The outer wheel of the inner ratchet mechanism (71) is rotatably supported on one side of the mounting frame (1) and is coaxially arranged with the turntable of the crank-connecting rod slider mechanism (61). The inner wheel of the inner ratchet mechanism (71) is rotatably supported on one side of the mounting frame (1) and is coaxially fixed with the transmission gear (72). The transmission rack (73) is provided on the side wall of the mounting frame (1), and the transmission gear (72) and the transmission rack (73) mesh with each other.

7. A planetary gear heat treatment impact protection fixture according to claim 6, characterized in that, The transmission rack (73) is slidably mounted on the mounting bracket (1) in the vertical direction. The mounting bracket (1) is provided with a locking pin (124) for locking the transmission rack (73).

8. A planetary gear heat treatment impact protection fixture according to claim 7, characterized in that, A reset spring (125) is provided on the mounting bracket (1). One end of the reset spring (125) is fixed to the transmission rack (73). The reset spring (125) is used to reset the transmission rack (73).

9. A planetary gear heat treatment impact protection fixture according to claim 7, characterized in that, Magnets are provided on the sidewalls of the guide groove (121) and the guide block, and the two sets of magnets attract each other.

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