Adjustable compression device of bevel gear of electric drive system and quenching press

By designing an adjustable clamping device and a quenching press, uniform clamping and heating of bevel gears during the quenching process were achieved, solving the problem of bevel gear deformation during quenching and improving accuracy and applicability.

CN117845024BActive Publication Date: 2026-06-02GUILIN FUDA GEAR +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUILIN FUDA GEAR
Filing Date
2024-01-10
Publication Date
2026-06-02

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Abstract

This invention relates to an adjustable clamping device and a quenching press for bevel gears in an electric drive system. The device includes a chassis and an inner pressure ring. The bevel gear is placed on the chassis. The bottom surface of the inner pressure ring contacts the inner bore boss of the bevel gear. A second pressure ring is fitted onto the outer peripheral wall of the inner pressure ring. A pressure strip ring is fixed to the top surface of the inner pressure ring. The pressure strip ring is coaxial with the inner pressure ring. At least two pressure strips are evenly slidably disposed on the pressure strip ring around its axis. The pressure strips can slide in a direction away from the axis of the pressure strip ring. The bottom surfaces of the second pressure ring and the pressure strips contact the tooth surface of the bevel gear. The advantages of this invention are: the inner pressure ring presses against the inner bore boss of the bevel gear, and the second pressure ring and pressure strips press against the tooth surface of the bevel gear, resulting in better clamping effect and a larger clamping range. Furthermore, the pressure strips can be adjusted in clamping position according to different bevel gear sizes and tapers, making it more applicable and improving quenching quality.
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Description

Technical Field

[0001] This invention relates to the field of gear processing, specifically to an adjustable clamping device and a quenching press for bevel gears in an electric drive system. Background Technology

[0002] Bevel gears are important components in the machinery industry, widely used in automotive electric drive systems. Their machining quality directly affects their performance. Due to their complex structure and high precision requirements, bevel gears often experience severe deformation (plane warping, internal hole distortion, and tooth profile changes) during the quenching process. Therefore, strict control of bevel gear deformation is essential.

[0003] In the existing technology, bevel gears often undergo severe deformation during the quenching process, leading to a decrease in gear precision and even product scrap. To solve the problem of gear precision failure caused by deformation during gear quenching, there is an urgent need for a quenching clamping device to improve the deformation of bevel gears during the quenching process, thereby improving the precision of bevel gears after quenching and meeting production requirements. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to improve the quenching quality of bevel gears.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An adjustable clamping device for a bevel gear in an electric drive system includes a chassis and an inner pressure ring. The bevel gear is placed on the chassis. The bottom surface of the inner pressure ring contacts the inner hole boss of the bevel gear. A second pressure ring is sleeved on the outer peripheral wall of the inner pressure ring. A pressure strip ring is fixedly connected to the top surface of the inner pressure ring. The pressure strip ring is coaxial with the inner pressure ring. At least two pressure strips are evenly slidably arranged on the pressure strip ring around its axis. The pressure strips can slide in a direction away from the axis of the pressure strip ring. The bottom surfaces of the second pressure ring and the pressure strips are in contact with the tooth surface of the bevel gear.

[0006] The beneficial effects of this invention are: the inner pressure ring presses against the inner hole boss of the bevel gear, the second pressure ring and the pressure strip press against the tooth surface of the bevel gear, and the three rings press together, resulting in a better pressing effect and a larger pressing range. Furthermore, the pressure strip can be adjusted to press the pressing position according to different bevel gear sizes and tapers, making it more applicable and improving the quenching quality.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the second pressure ring is sleeved on the outer peripheral wall of the inner pressure ring and can be adjusted up and down along the axial direction of the inner pressure ring.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the second pressure ring can press down on the highest point of the bevel gear tooth surface. Since the height of the highest point of the bevel gear tooth surface is different for bevel gears of different sizes and tapers, the second pressure ring can be adjusted up and down to ensure that it can always press down on the bevel gear.

[0010] Furthermore, each pressure strip has a slider fixedly attached to its sidewall. The slider is slidably mounted on the pressure strip ring. One end of the slider points to the axis of the inner pressure ring, and the other end points to the top surface of the chassis.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the pressing position can be changed by pushing the pressure bar with a slider.

[0012] Furthermore, the outer wall of the pressure strip ring is evenly provided with sliding guide holes that correspond one-to-one with the slider. One end of the sliding guide hole points to the axis of the inner pressure ring, and the other end points to the top surface of the chassis. The slider slides within the sliding guide hole.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the sliding guide hole guides the slider, ensuring that the adjustment angle of the slider is consistent at all points.

[0014] Furthermore, an annular groove is also provided inside the pressure strip ring. The annular groove is coaxial with the pressure strip ring, and is located above and connected to the sliding guide hole. A pressure ring is installed inside the annular groove. The bottom surface of the pressure ring contacts the top surface of the slider located inside the sliding guide hole. One end of a first spring is fixedly connected to the top surface of the pressure ring, and the other end of the first spring is fixedly connected to the top surface of the annular groove.

[0015] The beneficial effect of adopting the above-mentioned further solution is that when the slider does not need to be adjusted, the spring pushes the pressure ring, and the pressure ring presses down on the slider to prevent the slider from moving.

[0016] Furthermore, a first boss ring and a second boss ring are fixedly connected to the outer peripheral wall of the inner pressure ring. The second pressure ring is installed between the first boss ring and the second boss ring. One end of a second spring is fixedly connected to the top surface of the second boss ring, and the other end of the second spring is fixedly connected to the bottom surface of the second pressure ring. Several screws are evenly threaded around the axis on the first boss ring, and the bottom end of the screws passes through the first boss ring and contacts the top surface of the second pressure ring.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the second spring pushes the second pressure ring to rise, the screw abuts against the top surface of the second pressure ring, and the second pressure ring is pushed to fall by turning the screw.

[0018] Furthermore, it also includes an outer cover, the top surface of the pressure strip ring is connected to the top inner side of the outer cover, and the bottom surface of the outer cover is in contact with the chassis.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the outer cover covers the bevel gear and cooperates with the chassis to form a quenching chamber.

[0020] Furthermore, a lifting rod is installed on the top of the outer cover, and the bottom end of the lifting rod extends into the pressure strip ring and is fixedly connected to an inverted conical pressure cap. The pressure cap is coaxial with the pressure strip ring, and the conical surface of the pressure cap contacts the slider.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the pressure cap pushes the surrounding sliders to extend simultaneously, ensuring consistent adjustment range and good synchronization.

[0022] Furthermore, a first liquid inlet hole is provided in the center of the chassis, and a plurality of second liquid inlet holes are evenly provided around the edge of the chassis along the axis.

[0023] The beneficial effects of adopting the above-mentioned further solution are: liquid is introduced through the internal and external inlet holes, ensuring that the bevel gear is quenched both inside and out at the same time, and is less prone to deformation due to temperature difference.

[0024] A quenching press, comprising an adjustable clamping device for an electric drive system bevel gear as described in any of the preceding claims.

[0025] The beneficial effects of adopting the above technical solution are: the quenching press provides clamping force to the adjustable clamping device. After the adjustable clamping device presses down on the bevel gear, the quenching press injects quenching liquid for quenching, so as to achieve uniform clamping of the bevel gear, uniform heating of the internal and external quenching, and less deformation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall invention.

[0027] Figure 2 This is an exploded view of the present invention.

[0028] Figure 3 This is a schematic diagram of the inner pressure ring of the present invention.

[0029] Figure 4 This is a schematic diagram of the second pressure ring of the present invention.

[0030] Figure 5 This is a schematic diagram of the pressure strip ring of the present invention.

[0031] Figure 6 This is a schematic diagram of the pressure ring of the present invention.

[0032] Figure 7 This is a schematic diagram of the site of the present invention.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Chassis; 2. Inner pressure ring; 3. Bevel gear; 4. Second pressure ring; 5. Pressure strip; 6. Slider; 7. Pressure strip ring; 8. Sliding guide hole; 9. Annular groove; 10. Pressure ring; 11. First spring; 12. First boss ring; 13. Second boss ring; 14. Second spring; 15. Screw; 16. Outer cover; 17. Lifting rod; 18. Pressure cap; 19. First liquid inlet; 20. Second liquid inlet. Detailed Implementation

[0035] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0036] Example 1

[0037] like Figures 1 to 3 As shown, an adjustable clamping device for a bevel gear in an electric drive system includes a chassis 1 and an inner pressure ring 2. A bevel gear 3 is placed on the chassis 1. The bottom surface of the inner pressure ring 2 contacts the inner hole boss of the bevel gear 3. A second pressure ring 4 is sleeved on the outer peripheral wall of the inner pressure ring 2. A pressure strip ring 7 is fixedly connected to the top surface of the inner pressure ring 2. The pressure strip ring 7 is coaxial with the inner pressure ring 2. At least two pressure strips 5 are evenly slidably arranged on the pressure strip ring 7 around its axis. The pressure strips 5 can slide in a direction away from the axis of the pressure strip ring 7. The bottom surfaces of the second pressure ring 4 and the pressure strips 5 are in contact with the tooth surface of the bevel gear 3.

[0038] The beneficial effects of this embodiment are as follows: When the bevel gear 3 needs to be quenched, the bevel gear 3 is placed on the chassis 1, and the quenching liquid flows out from under the chassis 1. The inner pressure ring 2 presses against the inner hole boss of the bevel gear 3, and the second pressure ring 4 and the pressure strip 5 press against the tooth surface of the bevel gear 3. The three rings are pressed together, which has a better pressing effect and a larger pressing range. In addition, the pressure strip 5 can be slid outward to adjust and form a larger ring. The position of pressing the tooth surface can be adjusted according to the different sizes and tapers of the bevel gear 3, which has a wider range of applications. It suppresses the deformation of the bevel gear 3 during quenching and improves the quenching quality.

[0039] Based on this embodiment, the number of pressure strips 5 is more than 20. The more strips there are, the more evenly they can be arranged to form a ring shape, which is used to evenly press the tooth surface of the bevel gear 3.

[0040] As a parallel technical solution in this embodiment, several pressure strip rings 7 can be fixedly attached from bottom to top above the pressure strip ring 7. The pressure strips 5 on the pressure strip ring 7 extend to form more rings of different sizes, which can increase the number of rings and increase the area and area of ​​compression.

[0041] Example 2

[0042] like Figures 3 to 4 As shown, preferably, based on Embodiment 1, the second pressure ring 4 is sleeved on the outer peripheral wall of the inner pressure ring 2 and is adjusted up and down along the axial direction of the inner pressure ring 2.

[0043] The beneficial effect of adopting the preferred solution in the above embodiments is that the second pressure ring 4 presses the highest point of the tooth surface of the bevel gear 3. Because the height of the highest point of the tooth surface of bevel gear 3 is different for different sizes and tapers, when another bevel gear 3 is replaced, while adjusting the pressing position of the pressure strip 5, it is also necessary to adjust the second pressure ring 4 up and down to ensure that the highest point of the tooth surface of the bevel gear 3 can always be pressed.

[0044] Based on this embodiment, the bottom surface of the second pressure ring 4 can be uniformly fixed with protrusions that correspond one-to-one with the tooth grooves of the bevel gear 3. When pressed, the protrusions are inserted into the tooth grooves to prevent the second pressure ring 4 from damaging the sharp points of the bevel gear 3 tooth surface.

[0045] Example 3

[0046] like Figure 3 As shown, preferably, based on embodiments 1-2, a slider 6 is fixedly connected to the side wall of the pressure strip 5. The slider 6 is slidably disposed on the pressure strip ring 7. One end of the slider 6 points to the axis of the inner pressure ring 2, and the other end points to the top surface of the chassis 1.

[0047] The beneficial effect of adopting the preferred solution in the above embodiments is that the pressing position is changed by pushing the pressure strip 5 through the slider 6.

[0048] Based on this embodiment, the sliding direction of the slider 6 is inclined, and its inclination angle is the same as the cone surface angle of a certain preset bevel gear 3, which can accurately adjust the position.

[0049] Example 4

[0050] like Figure 3 and Figure 5 As shown, preferably, based on embodiments 1-3, the outer wall of the pressure strip ring 7 is provided with sliding guide holes 8 that correspond one-to-one with the slider 6 around the axis. One end of the sliding guide hole 8 points to the axis of the inner pressure ring 2 in the length direction, and the other end points to the top surface of the chassis 1. The slider 6 slides within the sliding guide hole 8.

[0051] The beneficial effect of adopting the preferred solution in the above embodiments is that the sliding guide hole 8 guides the slider 6, ensuring that the adjustment angle of the slider 6 is consistent at all points.

[0052] In this embodiment, the pressure ring 7 is fixed to the inner pressure ring 2 by screws.

[0053] Based on this embodiment, the sliding direction of the sliding guide hole 8 is inclined, and its inclination angle is the same as the cone surface angle of a certain preset bevel gear 3, which can accurately adjust the position.

[0054] When facing different bevel gears 3, their cone surface positions may vary slightly. You can choose to pull the slider 6 inward, and the slider 6 will drive the pressure strip 5 to contact and press the cone surface of the bevel gear 3. Alternatively, you can choose to replace the pressure strip ring 7 with a sliding guide hole 8 with a different angle.

[0055] Example 5

[0056] like Figures 5 to 6 As shown, preferably, based on embodiments 1-4, the pressure strip ring 7 is further provided with an annular groove 9. The annular groove 9 is coaxial with the pressure strip ring 7. The annular groove 9 is located above the sliding guide hole 8 and communicates with the sliding guide hole 8. A pressure ring 10 is installed in the annular groove 9. The bottom surface of the pressure ring 10 contacts the top surface of the slider 6 located in the sliding guide hole 8. One end of the first spring 11 is fixedly connected to the top surface of the pressure ring 10, and the other end of the first spring 11 is fixedly connected to the top surface of the annular groove 9.

[0057] The beneficial effect of the preferred solution in the above embodiments is that when the slider 6 is pushed or pulled, the pressure ring 10 has little resistance. When the slider 6 does not need to be adjusted, the spring pushes the pressure ring 10 downward, and the bottom surface of the pressure ring 10 moves downward, pressing down on the slider 6 to prevent the slider 6 from continuing to move.

[0058] In this embodiment, the bottom surface of the pressure ring 10 extends into the sliding guide hole 8.

[0059] As a parallel technical solution in this embodiment, pressure blocks corresponding to the sliding guide holes 8 can be uniformly fixed in the annular groove 9. A first spring 11 is installed on the top surface of each pressure block, and the bottom surface of the pressure block extends into the sliding guide hole 8 to press down the slider 6 to prevent it from sliding.

[0060] Example 6

[0061] like Figure 4 As shown, preferably, based on embodiments 1-5, a first boss ring 12 and a second boss ring 13 are fixedly connected to the outer peripheral wall of the inner pressure ring 2. The second pressure ring 4 is installed between the first boss ring 12 and the second boss ring 13. One end of a second spring 14 is fixedly connected to the top surface of the second boss ring 13, and the other end of the second spring 14 is fixedly connected to the bottom surface of the second pressure ring 4. A plurality of screws 15 are evenly threaded around the axis on the first boss ring 12. The bottom end of the screws 15 passes through the first boss ring 12 and contacts the top surface of the second pressure ring 4.

[0062] The beneficial effect of the preferred solution in the above embodiments is that the elastic force of the second spring 14 pushes the second pressure ring 4 to rise, the screw 15 abuts against the top surface of the second pressure ring 4, and the second pressure ring 4 is pushed down by turning the screw 15, and the bottom surface of the second pressure ring 4 contacts the tip of the bevel gear 3 for pressing.

[0063] As a parallel technical solution in this embodiment, only one screw 15 can be retained, and the remaining screws 15 can be replaced with several guide rods. The screw 15 can be rotatably mounted on the first boss ring 12. One side of the second pressure ring 4 is threadedly connected to the screw 15, and the other side of the second pressure ring 4 is sleeved on the guide rod. The rotation of the screw 15 drives the second pressure ring 4 to rise and fall.

[0064] Example 7

[0065] like Figures 1 to 2 As shown, preferably, based on embodiments 1-6, it further includes an outer cover 16, the top surface of the pressure strip ring 7 is connected to the top inner side of the outer cover 16, and the bottom surface of the outer cover 16 is in contact with the chassis 1.

[0066] The beneficial effects of the preferred solution in the above embodiments are: the pressure ring 7 is fixed to the outer cover 16 by screws, the outer cover 16 surrounds all the components, and during quenching, the outer cover 16 descends to cover the bevel gear 3, and cooperates with the chassis 1 to form a quenching chamber.

[0067] Example 8

[0068] like Figures 1 to 2 As shown, preferably, based on embodiments 1-7, a lifting rod 17 is installed on the top of the outer cover 16, the bottom end of the lifting rod 17 extends into the pressure strip ring 7 and is fixedly connected to an inverted conical pressure cap 18, the pressure cap 18 is coaxial with the pressure strip ring 7, and the conical surface of the pressure cap 18 contacts the slider 6.

[0069] The beneficial effect of adopting the preferred solution in the above embodiments is that the lifting rod 17 lifts and lowers to drive the pressure cover 18, and the conical surface of the pressure cover 18 pushes the surrounding slider 6 to extend, ensuring consistent adjustment range and good synchronization.

[0070] In this embodiment, the pressure cover 18 only has the function of pushing the surrounding slider 6 out. After the pressure cover 18 pushes the surrounding slider 6 out to the desired position, the pressure cover 18 will remain stationary, and the pressure ring 10 will press down on the slider 6 to ensure that the slider 6 will not continue to slide out.

[0071] When the pressure strip 5 contacts the conical surface of the bevel gear 3, the reaction force will cause the slider 6 to move upward. Also, because the sliding guide hole 8 is tilted, the component force will cause the slider 6 to slide inward. If the pressure cover 18 does not move, the end of the slider 6 located inside the pressure strip ring 7 will abut against the pressure cover 18, thus canceling out the reaction force.

[0072] Example 9

[0073] like Figure 1 and Figure 7 As shown, preferably, based on embodiments 1-8, a first liquid inlet hole 19 is provided in the middle of the chassis 1, and a plurality of second liquid inlet holes 20 are uniformly provided around the edge of the chassis 1 along the axis.

[0074] The beneficial effect of adopting the preferred solution in the above embodiments is that when the bevel gear 3 is placed on the chassis 1, the first liquid inlet 19 is located at the inner center hole of the bevel gear 3, and the second liquid inlet 20 is located on the outer side of the bevel gear 3.

[0075] During quenching, liquid is introduced through the first liquid inlet hole 19 and the second liquid inlet hole 20 to ensure that the inner and outer sides of the bevel gear 3 are quenched simultaneously, making it less prone to deformation due to temperature differences.

[0076] Example 10

[0077] A quenching press, comprising an adjustable clamping device for an electric drive system bevel gear as described in any of the preceding claims.

[0078] The beneficial effects of the preferred scheme in the above embodiments are: the quenching press provides clamping force to the adjustable clamping device. After the adjustable clamping device presses down on the bevel gear 3, the quenching press injects quenching liquid for quenching, so as to achieve uniform clamping of the bevel gear 3, uniform heating of the internal and external quenching, and less deformation.

[0079] The specific usage process is as follows: Install the outer cover 16 on the lifting end of the quenching press. The outer cover 16, inner pressure ring 2, second pressure ring 4 and pressure strip 5 follow the press to lift and lower. The chassis 1 is installed on the lower platform of the quenching press. First, determine the bevel gear 3 to be quenched, adjust the height of the first pressure cover 18, adjust the length of the pressure strip 5 extended from the pressure cover 18, and then adjust the height of the second pressure ring 4.

[0080] Then, the heated bevel gear 3 is placed on the chassis 1, and the outer cover 16 is lowered to contact the chassis 1, forming a quenching chamber. The inner pressure ring 2, the second pressure ring 4, and the pressure strip 5 press down on the bevel gear 3. The quenching liquid flows into the quenching chamber from the first liquid inlet hole 19 and the second liquid inlet hole 20 on the chassis 1, and at the same time, the inner and outer sides of the bevel gear 3 are quenched to avoid deformation due to temperature difference. The inner pressure ring 2, the second pressure ring 4, and the pressure strip 5 are pressed tightly together to make the quenching more stable and improve the quenching quality.

[0081] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adjustable hold-down device for a bevel gear of an electric drive system, characterized in that The device includes a chassis (1) and an inner pressure ring (2). A bevel gear (3) is placed on the chassis (1). The bottom surface of the inner pressure ring (2) contacts the inner hole boss of the bevel gear (3). A second pressure ring (4) is sleeved on the outer peripheral wall of the inner pressure ring (2). A pressure strip ring (7) is fixed to the top surface of the inner pressure ring (2). The pressure strip ring (7) is coaxial with the inner pressure ring (2). At least two pressure strips (5) are evenly slidably arranged on the pressure strip ring (7) around its axis. The pressure strips (5) can slide in a direction away from the axis of the pressure strip ring (7). The bottom surfaces of the second pressure ring (4) and the pressure strips (5) are in contact with the tooth surface of the bevel gear (3). Each pressure strip (5) has a slider (6) fixedly attached to its side wall. The slider (6) is slidably mounted on the pressure strip ring (7). One end of the slider (6) points to the axis of the inner pressure ring (2), and the other end points to the top surface of the chassis (1).

2. The adjustable compression device of a bevel gear of an electric drive system according to claim 1, characterized in that The second pressure ring (4) is sleeved on the outer peripheral wall of the inner pressure ring (2) and can be adjusted up and down along the axis of the inner pressure ring (2).

3. The adjustable compression device of claim 1, wherein, The outer wall of the pressure ring (7) is evenly provided with sliding guide holes (8) that correspond one-to-one with the slider (6). One end of the sliding guide hole (8) points to the axis of the inner pressure ring (2) and the other end points to the top surface of the chassis (1). The slider (6) slides within the sliding guide hole (8).

4. The adjustable compression device of claim 3, wherein, The pressure ring (7) is also provided with an annular groove (9), which is coaxial with the pressure ring (7). The annular groove (9) is located above the sliding guide hole (8) and communicates with the sliding guide hole (8). A pressure ring (10) is installed in the annular groove (9). The bottom surface of the pressure ring (10) contacts the top surface of the slider (6) located in the sliding guide hole (8). One end of the first spring (11) is fixedly connected to the top surface of the pressure ring (10), and the other end of the first spring (11) is fixedly connected to the top surface of the annular groove (9).

5. The adjustable clamping device for a bevel gear in an electric drive system according to claim 2, characterized in that, The inner pressure ring (2) has a first boss ring (12) and a second boss ring (13) fixedly connected to its outer peripheral wall. The second pressure ring (4) is installed between the first boss ring (12) and the second boss ring (13). One end of the second spring (14) is fixedly connected to the top surface of the second boss ring (13). The other end of the second spring (14) is fixedly connected to the bottom surface of the second pressure ring (4). Several screws (15) are evenly threaded around the axis on the first boss ring (12). The bottom end of the screws (15) passes through the first boss ring (12) and contacts the top surface of the second pressure ring (4).

6. The adjustable clamping device for a bevel gear in an electric drive system according to claim 3, characterized in that, It also includes an outer cover (16), the top surface of the pressure strip ring (7) is connected to the top of the inner side of the outer cover (16), and the bottom surface of the outer cover (16) is in contact with the chassis (1).

7. The adjustable clamping device for a bevel gear in an electric drive system according to claim 6, characterized in that, The top of the outer cover (16) is equipped with a lifting rod (17), the bottom end of the lifting rod (17) extends into the pressure strip ring (7) and is fixed with an inverted conical pressure cap (18), the pressure cap (18) is coaxial with the pressure strip ring (7), and the conical surface of the pressure cap (18) contacts the slider (6).

8. The adjustable clamping device for a bevel gear in an electric drive system according to claim 1, characterized in that, The chassis (1) has a first liquid inlet hole (19) in the middle and a number of second liquid inlet holes (20) are evenly provided around the edge of the chassis (1) along the axis.

9. A quenching press, characterized in that, It includes an adjustable clamping device for a bevel gear of an electric drive system as described in any one of claims 1-8.