Damping plate for automobile hydraulic retarder and forming equipment of damping plate

Abstract

The invention discloses a vibration damper plate for an automobile hydraulic retarder and forming equipment of the vibration damper plate, and relates to the technical field of automobile retarder accessories. The connecting bracket comprises an inner lining plate and a connecting screw rod; the inner lining plate is fixedly connected with the non-threaded end of the connecting screw rod; the damping body is formed between the mounting plate and the lining plate through a mold after an elastic material is softened; a rubber material is formed in a mold in an injection molding mode or a compression molding mode, finally, the molten damping body is formed between the mounting plate and the lining plate, and the mounting plate and the lining plate are connected and fixed, so that the damping body serves as a damping buffer piece between the mounting plate and the connecting bracket; the proportional valve installed on the automobile hydraulic retarder is subjected to damping protection, and the service life of the proportional valve is prolonged; and the larger contact area of the mounting plate and the lining plate can ensure the adhesion reliability of the damping body and the mounting plate and the lining plate, so that the service life of the damping plate is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive retarder accessories, and particularly relates to a shock-absorbing plate for an automotive hydraulic retarder and its forming equipment. Background Art

[0002] An automotive hydraulic retarder reduces the vehicle speed through a hydraulic device, and generally consists of components such as a retarder body, a control device, and an electronic control unit. In the structure of the retarder body, a rotor and a stator jointly form a working chamber. When the hydraulic retarder works, the electronic control system controls a proportional valve to apply air pressure to the working fluid to make the oil fill into the working chamber.

[0003] The proportional valve is fixed on the hydraulic retarder through a shock-absorbing plate. Through the elasticity of the rubber, the vehicle can withstand greater bumps during driving, more effectively ensure the safety of the continuous operation of the hydraulic retarder, and extend the service life of the retarder.

[0004] The maximum failure mode of the shock-absorbing plate is that the rubber cracks after long-term fatigue, loses its elasticity, and cannot perform the "shock-absorbing" function. And due to being in a vibrating environment for a long time, the rubber separates from the metal plate, resulting in the shock-absorbing plate losing its basic installation and fixing function, and thus greatly affecting the service life of the shock-absorbing plate. Summary of the Invention

[0005] In order to overcome the above technical problems, the purpose of the present invention is to provide a shock-absorbing plate for an automotive hydraulic retarder and its forming equipment to solve the problem of the separation between the rubber and the metal plate due to being in a vibrating environment for a long time as mentioned in the above background art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A shock-absorbing plate for an automotive hydraulic retarder includes a mounting plate, a connecting bracket, and a shock-absorbing body; the connecting bracket includes a lining plate and a connecting screw; the lining plate is fixedly connected to the non-threaded end of the connecting screw; the shock-absorbing body is formed by softening an elastic material through a mold between the mounting plate and the lining plate.

[0008] Preferably, a through-hole is provided on one side surface of the lining plate, and the edge of the through-hole protrudes towards the shock-absorbing body; a protruding structure protruding towards the shock-absorbing body is provided on the other side surface of the lining plate; a structure identical to the through-hole on the lining plate is provided at the position corresponding to the through-hole on the mounting plate.

[0009] Preferably, the inner sides of the protruding structures of the through-holes on the lining plate and the mounting plate are both coated with the material of the shock-absorbing body.

[0010] Preferably, a first counterweight hole is provided on the inner lining plate, and the shape and position of the first counterweight hole are used to adjust the same adhesion area on both sides of the inner lining plate; a second counterweight hole is provided on the mounting plate, and the shape and position of the second counterweight hole are used to adjust the same adhesion area on both sides of the mounting plate.

[0011] Preferably, a positioning step is provided at the non-threaded end of the connecting screw; an anti-detachment step is provided at the end of the positioning step.

[0012] A shock absorber plate forming device for an automotive hydraulic retarder includes an upper die, a middle die, and a lower die; the upper die is used to position and place the mounting plate; the middle die is used to place the rubber material for manufacturing the shock absorber body; the lower die is used to position and place the connecting bracket.

[0013] Preferably, the lower die includes a lower template, a forming column, a mounting block, a sliding sleeve, a connecting block, a driving member, and an electromagnet; a plurality of forming cavities are provided on the lower template; a boss is provided on one side inside the forming cavity, and a through hole is provided on the other side inside the forming cavity; the forming column is provided in the through hole; a gap is left between the step at the forming end of the forming column and the through hole of the inner lining plate; the non-forming end of the forming column is fixedly installed on the inner wall of the mounting groove on the back of the lower template through the mounting block; the sliding sleeve is sleeved on the forming column; the outer circular surface at one end of the sliding sleeve serves as a positioning element when placing the connecting bracket, and the end surface at one end of the sliding sleeve serves as a forming surface when forming the shock absorber body; the other end of the sliding sleeve is fixedly connected to the connecting block; the driving member is used to drive the connecting block to move along the sliding direction of the sliding sleeve; the electromagnet is embedded in the lower template near one side of the forming cavity.

[0014] Preferably, the driving member includes a cylinder, a buffer block, a gasket, and a snap ring; the cylinder block is fixedly connected to the inner wall of the mounting groove on the back of the lower template; the output shaft of the cylinder passes through the sinking hole on the connecting block and is sequentially sleeved with the buffer block and the gasket; the axial position of the gasket is restricted by the snap ring outside; the lower die further includes the limiting member; the limiting member is used to limit the position after the sliding sleeve retracts.

[0015] Preferably, the lower die further includes a temperature sensor; the temperature sensor is arranged in the mounting hole inside the forming column; the detection head of the temperature sensor is arranged at the forming end of the forming column.

[0016] Preferably, the limiting member is arranged on the mounting groove on the back of the lower template; the limiting member is fixedly connected to the lower template.

[0017] The beneficial effects of the present invention:

[0018] 1. The rubber material is formed in a mold by injection molding or compression molding. Finally, the melted shock absorber body is formed between the mounting plate and the inner lining plate and connects and fixes the two, so that the shock absorber body serves as a shock absorption buffer between the mounting plate and the connecting bracket, thereby providing shock absorption protection for the proportional valve installed on the automotive hydraulic retarder and increasing the service life of the proportional valve. Moreover, the large contact area between the mounting plate and the inner lining plate can ensure the reliability of the adhesion between the shock absorber body and the two, thereby increasing the service life of the shock absorber plate. By stamping the through holes on the inner lining plate and the mounting plate into a stepped structure, the adhesion area between the softened rubber material and the inner lining plate and the mounting plate during molding is increased, thereby increasing the service life of the shock absorber plate. By setting the shapes and positions of the counterweight holes on the inner lining plate and the mounting plate, the adhesion areas on both sides of the inner lining plate are approximately the same and the adhesion areas on both sides of the mounting plate are also approximately the same, so that the adhesion strength of the shock absorber body on both sides of the inner lining plate is more balanced, and the situation of detachment at the weak adhesion part will not occur during long-term vibration environment use, further increasing the service life of the shock absorber plate.

[0019] 2. By controlling the position of the sliding sleeve on the forming column, the sliding sleeve is positioned by its outer cylindrical surface when it is ejected, and its end face serves as the forming surface when it retracts. Before the connecting bracket is placed, the driving member ejects the sliding sleeve through the connecting block. Then, when the connecting bracket is placed, the protruding part of the through hole on the inner lining plate is sleeved on the outer cylindrical surface of the sliding sleeve, and the protruding structure on the inner lining plate is sleeved on the convex platform of the lower template, thereby achieving high-precision positioning of the connecting bracket. After the positioning is completed, the controller controls the powerful electromagnet to be energized through an electrical signal, thereby adsorbing and fixing the inner lining plate. Subsequently, during the compression molding process, the controller controls the driving member to drive the sliding sleeve to retract through an electrical signal, and the end face of the forming end of the retracted sliding sleeve is flush with the inner wall of the forming cavity on the lower template, so as to ensure that the melted rubber material can enter the gap between the step at the forming end of the forming column and the through hole of the inner lining plate after melting, thereby completing the process requirement that the through hole of the inner lining plate needs to be coated with rubber material. After the compression molding and pressure holding are completed, the mold is opened. Then, the controller also controls the electromagnet to be powered off through an electrical signal, so as to ensure that the compression-molded shock absorber plate can be removed. Subsequently, the controller controls the driving member to drive the sliding sleeve to eject through an electrical signal, so as to ensure that the next connecting bracket can be placed and accurately positioned.

[0020] 3. By retracting the sliding sleeve only after the rubber material enters the periphery of the forming column, the amount of air in the space occupied by the sliding sleeve can be reduced, and the exhaust of this part is reduced, making it easier for the melted rubber material to enter the gap between the forming end of the forming column and the through hole on the inner lining plate, thereby improving the forming effect of the thin wall at this place, preventing the problem of less material at this place, and thus improving the compression molding quality of the shock absorber plate. Brief Description of the Drawings

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is the overall three-dimensional structural schematic diagram of the shock-absorbing plate of the present invention;

[0023] Figure 2 is the internal sectional view of the shock-absorbing plate of the present invention;

[0024] Figure 3 is the structural schematic diagram of the connecting bracket of the present invention;

[0025] Figure 4 is the structural schematic diagram of the mounting plate of the present invention;

[0026] Figure 5 is the structural schematic diagram of the connecting screw of the present invention;

[0027] Figure 6 is the overall structural schematic diagram of the shock-absorbing plate forming device of the present invention;

[0028] Figure 7 is the structural schematic diagram of the lower mold from the first perspective of the present invention;

[0029] Figure 8 is the structural schematic diagram of the lower mold from the second perspective of the present invention;

[0030] Figure 9 is the position distribution diagram of the sliding sleeve and the driving member in the present invention;

[0031] Figure 10 is the internal sectional view of the shock-absorbing plate forming device from the first perspective of the present invention;

[0032] Figure 11 is Figure 10 the partial enlarged view at A in;

[0033] Figure 12 is the internal sectional view of the shock-absorbing plate forming device from the second perspective of the present invention;

[0034] Figure 13 is Figure 12 the partial enlarged view at B in;

[0035] In the figure: mounting plate 1, second counterweight hole 11, connecting bracket 2, lining plate 21, convex structure 211, first counterweight hole 212, connecting screw 22, positioning step 221, anti-disengagement step 222, shock-absorbing body 3, upper mold 4, middle mold 5, lower mold 6, lower template 61, convex platform 611, forming column 62, mounting block 63, sliding sleeve 64, connecting block 65, driving member 66, cylinder 661, buffer block 662, gasket 663, snap ring 664, limiting member 67, temperature sensor 68. Specific Embodiments

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figure 1-3 shown, a shock-absorbing plate for an automotive hydraulic retarder includes a mounting plate 1, a connecting bracket 2, and a shock-absorbing body 3; the connecting bracket 2 includes a lining plate 21 and a connecting screw 22; the lining plate 21 is fixedly connected to the non-threaded end of the connecting screw 22; the shock-absorbing body 3 is formed by molding softened elastic material between the mounting plate 1 and the lining plate 21 through a mold.

[0038] The shock-absorbing body 3 is made of rubber. The melted rubber material is injected into a molding die by injection molding, or the solid rubber can be directly heated and extruded so that the softened rubber material is molded in the die. Finally, the melted shock-absorbing body 3 is molded between the mounting plate 1 and the lining plate 21 and connects and fixes the two, so that the shock-absorbing body 3 serves as a shock-absorbing buffer between the mounting plate 1 and the connecting bracket 2, thereby providing shock-absorbing protection for the proportional valve installed on the automotive hydraulic retarder and improving the service life of the proportional valve. Moreover, the large contact area between the mounting plate 1 and the lining plate 21 can ensure the reliability of the adhesion between the shock-absorbing body 3 and the two, thereby improving the service life of the shock-absorbing plate.

[0039] As Figure 1-4 shown, through holes are provided on one side surface of the lining plate 21, and the edges of the through holes protrude toward the shock-absorbing body 3; a protruding structure 211 protruding toward the shock-absorbing body 3 is provided on the other side surface of the lining plate 21; structures identical to the through holes on the lining plate 21 are provided at positions corresponding to the through holes on the mounting plate 1.

[0040] The through holes on the lining plate 21 and the mounting plate 1 are formed into a stepped structure protruding toward the shock-absorbing body 3 by stamping at one time, thereby increasing the adhesion area between the softened rubber material and the lining plate 21 and the mounting plate 1 during molding, and thus improving the service life of the shock-absorbing plate. The lining plate 21 is provided with a stepped structure protruding toward the shock-absorbing body 3 at the edge of one through hole, and at the same time, a protruding structure 211 protruding toward the shock-absorbing body 3 is provided on the other side, so as to ensure that both sides of the lining plate 21 have protruding structures for adhesion, and thus the situation where the adhesion weak point detaches first will not occur in a long-term vibration environment, further improving the service life of the shock-absorbing plate.

[0041] As Figure 1-2As shown, the material of the shock absorber 3 is coated on the inner sides of the protruding structures of the through holes on the inner lining plate 21 and the inner sides of the protruding structures of the through holes on the mounting plate 1.

[0042] The inner sides of the protruding structures of the through holes on the inner lining plate 21 and the inner sides of the protruding structures of the through holes on the mounting plate 1 are filled with rubber material during the process of die pressing and molding, so that the shock absorber 3 forms a coating structure in the through holes of the inner lining plate 21 and the mounting plate 1, thus serving as an anti - detachment structure between the shock absorber 3, the inner lining plate 21 and the mounting plate 1, and it will not become detached even when used in a long - term vibration environment, further improving the service life of the shock - absorbing plate.

[0043] As Figure 1-4 shown, a first counterweight hole 212 is provided on the inner lining plate 21, and the shape and position of the first counterweight hole 212 are used to adjust the same adhesion area on both sides of the inner lining plate 21; a second counterweight hole 11 is provided on the mounting plate 1, and the shape and position of the second counterweight hole 11 are used to adjust the same adhesion area on both sides of the mounting plate 1.

[0044] By respectively providing counterweight holes on the inner lining plate 21 and the mounting plate 1, after the shock absorber 3 is formed, the masses on both sides of the entire shock - absorbing plate are approximately the same, so that when the shock - absorbing plate is subjected to an external force of vibration, it will not twist on both sides, thus reducing the probability of the shock absorber 3 becoming detached from the mounting plate 1 and the inner lining plate 21; moreover, by further controlling the shape and position of the counterweight holes on the inner lining plate 21 and the mounting plate 1, the adhesion areas on both sides of the inner lining plate 21 are approximately the same and the adhesion areas on both sides of the mounting plate 1 are also approximately the same, so that the adhesion strength of the shock absorber 3 on both sides of the inner lining plate 21 is more balanced, and it will not become detached at the weak adhesion part first even when used in a long - term vibration environment, further improving the service life of the shock - absorbing plate.

[0045] As Figure 3 and 5 shown, a positioning step 221 is provided at the non - threaded end of the connecting screw 22; an anti - detachment step 222 is provided at the end of the positioning step 221.

[0046] By further providing an anti - detachment step 222 at the end of the positioning step 221 of the connecting screw 22, an anti - detachment structure is formed after the shock absorber 3 is molded, thus improving the adhesion strength between the shock absorber 3 and the connecting bracket 2, and it will not become detached even when used in a long - term vibration environment, further improving the service life of the shock - absorbing plate.

[0047] As Figure 6 、 10As shown in FIGS. 11 and 12, a forming device for a shock absorber plate of an automotive hydraulic retarder includes an upper mold 4, a middle mold 5, and a lower mold 6. The upper mold 4 is used to position and place the mounting plate 1. The middle mold 5 is used to place the rubber material for manufacturing the shock absorber body 3. The lower mold 6 is used to position and place the connecting bracket 2.

[0048] The upper mold 4 positions and places the mounting plate 1 through a positioning pin. During operation, the mounting plate 1, the rubber material, and the connecting bracket 2 are respectively placed into the mold cavities of the upper mold 4, the middle mold 5, and the lower mold 6. Subsequently, the molds approach and close to each other. Since the upper mold 4, the middle mold 5, and the lower mold 6 are continuously heated by heating tubes to about 160°-170°, during the process of the molds closing and after being completely closed, the rubber material placed in the middle mold 5 continuously softens until it completely melts, and then gradually fills the entire mold cavity surrounded by the upper mold 4, the middle mold 5, and the lower mold 6. Then, after pressure holding for about 15-25 minutes, the rubber material is completely formed, and the shock absorber body 3 is compression molded between the mounting plate 1 and the connecting bracket 2, thus completing the production of the shock absorber plate for the automotive hydraulic retarder.

[0049] As Figure 7 and 12 -13 shown, the lower mold 6 includes a lower template 61, a forming post 62, a mounting block 63, a sliding sleeve 64, a connecting block 65, a driving member 66, and an electromagnet. A number of forming cavities are provided on the lower template 61. A boss 611 is provided on one side of the forming cavity, and a through hole is provided on the other side of the forming cavity. The forming post 62 is arranged in the through hole. A gap is left between the step at the forming end of the forming post 62 and the through hole of the inner lining plate 21. The non-forming end of the forming post 62 is fixedly installed on the inner wall of the mounting groove on the back of the lower template 61 through the mounting block 63. The sliding sleeve 64 is sleeved on the forming post 62. The outer circumferential surface at one end of the sliding sleeve 64 serves as a positioning element when placing the connecting bracket 2, and the end face at one end of the sliding sleeve 64 serves as a forming surface when the shock absorber body 3 is formed. The other end of the sliding sleeve 64 is fixedly connected to the connecting block 65. The driving member 66 is used to drive the connecting block 65 to move along the sliding direction of the sliding sleeve 64. The electromagnet is embedded in the lower template 61 near one side of the forming cavity.

[0050] Since all the holes and edges of the connecting bracket 2 are covered by rubber material, it is difficult to position the connecting bracket 2. Most of the existing positioning methods are carried out through the connecting screw 22 in the connecting bracket 2. However, the connecting screw 22 and the inner lining plate 21 are connected by welding, resulting in poor positional accuracy between the two. In this solution, the positioning accuracy is very high through the convex structure 211 on one side of the inner lining plate 21 and the protruding part of the through-hole on the other side, because the two protrusions are made by one-time stamping with a stamping die, so they have high positional accuracy. However, the protruding part of the through-hole on the other side of the inner lining plate 21 needs to be coated with rubber material when pressing the plastic shock absorber 3. Therefore, this solution solves the above problems well by sleeving a sliding sleeve 64 on the forming column 62. The specific working principle is as follows:

[0051] Before placing the connecting bracket 2, the driving part 66 pushes out the sliding sleeve 64 through the connecting block 65. Then, when placing the connecting bracket 2, the protruding part of the through-hole on the inner lining plate 21 is sleeved on the outer circular surface of the sliding sleeve 64, and the convex structure 211 on the inner lining plate 21 is sleeved on the boss 611 of the lower template 61, thus realizing the high-precision positioning of the connecting bracket 2; after positioning, the controller controls the power-on of the powerful electromagnet through an electrical signal, and then adsorbs and fixes the inner lining plate 21; subsequently, during the pressing process, the controller controls the driving part 66 to drive the sliding sleeve 64 to retract through an electrical signal, and the end face of the forming end of the retracted sliding sleeve 64 is flush with the inner wall of the forming cavity on the lower template 61, so as to ensure that after the rubber material melts, it can enter the gap between the step of the forming end of the forming column 62 and the through-hole of the inner lining plate 21, thus completing the process requirement that the through-hole of the inner lining plate 21 needs to be coated with rubber material; after the pressing and holding pressure are completed, the mold is opened, and then the controller also controls the electromagnet to power off through an electrical signal, so as to ensure that the pressed shock-absorbing plate can be removed. Subsequently, the controller controls the driving part 66 to drive the sliding sleeve 64 to push out through an electrical signal, so as to ensure that the next connecting bracket 2 can be placed and accurately positioned.

[0052] As Figures 8-11 shown, the driving part 66 includes a cylinder 661, a buffer block 662, a gasket 663 and a circlip 664; the cylinder body of the cylinder 661 is fixedly connected to the inner wall of the installation groove on the back of the lower template 61; the output shaft of the cylinder 661 passes through the sunken hole on the connecting block 65 and is sequentially sleeved with the buffer block 662 and the gasket 663; the axial position of the outer side of the gasket 663 is limited by the circlip 664; the lower die 6 further includes a limiting part 67; the limiting part 67 is used to limit the position of the sliding sleeve 64 after retraction.

[0053] During operation, before the connection bracket 2 is placed, the cylinder 661 pushes the connection block 65 through the step of its output shaft to drive the sliding sleeve 64 to eject, thereby achieving the function of high-precision positioning. Subsequently, during the compression molding process, the controller controls the solenoid valve through an electrical signal, and then the solenoid valve controls the cylinder 661 to drive the sliding sleeve 64 to retract. When it touches the limiting member 67, the output shaft of the cylinder 661 pushes the gasket 663 to squeeze the buffer block 662 through the snap ring 664, thereby ensuring that the end face of the forming end of the retracted sliding sleeve 64 is flush with the inner wall of the forming cavity on the lower template 61, and thus ensuring the molding accuracy and aesthetics of the rubber material at this position. After the compression-molded shock-absorbing plate is removed, the controller controls the solenoid valve through an electrical signal, and then the solenoid valve controls the cylinder 661 to drive the sliding sleeve 64 to eject, which is used for the placement and precise positioning of the next connection bracket 2. In this case, the buffer block 662 makes up for the defect of the low axial expansion and contraction accuracy of the cylinder 661, and cooperates with the limiting member 67 to accurately limit the retraction position of the sliding sleeve 64, thereby ensuring that the end face of the forming end of the retracted sliding sleeve 64 is flush with the inner wall of the forming cavity on the lower template 61, and thus improving the molding accuracy and aesthetics of the rubber material at this position.

[0054] As Figures 12-13 shown, the lower mold 6 further includes a temperature sensor 68; the temperature sensor 68 is arranged in the mounting hole in the forming column 62; the detection head of the temperature sensor 68 is arranged at the forming end of the forming column 62.

[0055] The temperature sensor 68 is connected to the controller through an electrical signal; during operation, after the molds are closed, the rubber material placed in the middle mold 5 continuously softens, and the temperature of the rubber material is lower than the mold temperature before it is completely melted after softening. Therefore, when the softened but not completely melted rubber material enters the periphery of the forming column 62, the temperature sensor 68 detects a lower temperature, and then judges that the rubber material has entered the periphery of the forming column 62. Then, the temperature sensor 68 transmits an electrical signal to the controller, and the controller controls the solenoid valve through the electrical signal, and then the solenoid valve controls the cylinder 661 to drive the sliding sleeve 64 to retract until it is flush with the inner wall of the forming cavity. Retracting the sliding sleeve 64 after the rubber material enters the periphery of the forming column 62 can reduce the amount of air in the space occupied by the sliding sleeve 64, reduce the exhaust of this part, make the melted rubber material more easily enter the gap between the forming end of the forming column 62 and the through hole on the inner lining plate 21, thereby improving the forming effect of the thin wall at this position, preventing the problem of less material at this position, and thus improving the compression molding quality of the shock-absorbing plate.

[0056] As Figures 8-11 shown, the limiting member 67 is arranged in the mounting groove on the back of the lower template 61; the limiting member 67 is fixedly connected to the lower template 61.

[0057] The controller controls the cylinder 661 through the solenoid valve to drive the sliding sleeve 64 to retract. When the connecting block 65 abuts against the limiting member 67, the output shaft of the cylinder 661 pushes the gasket 663 through the snap ring 664 to squeeze the buffer block 662, so as to ensure that the end face of the forming end of the retracted sliding sleeve 64 is flush with the inner wall of the forming cavity on the lower template 61, thereby ensuring the forming accuracy and aesthetics of the rubber material at this position.

[0058] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0059] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0060] The above has described a specific embodiment of the present invention in detail, but the content described is only a preferred embodiment of the present invention and cannot be considered as being used to limit the scope of implementation of the present invention. Any equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A damping plate for a hydraulic retarder of an automobile, characterized in that: The invention comprises a mounting plate (1), a connecting bracket (2) and a shock absorbing body (3); the connecting bracket (2) comprises an inner lining plate (21) and a connecting screw (22); the inner lining plate (21) is fixedly connected to the non-threaded end of the connecting screw (22); the shock absorbing body (3) is formed by softening an elastic material and molding it between the mounting plate (1) and the inner lining plate (21) through a mold.

2. A shock absorbing plate for a vehicle hydraulic retarder according to claim 1, characterized in that: A through hole is provided on the surface of one side of the inner lining plate (21), and the edge of the through hole protrudes toward the side of the shock absorber (3); a protruding structure (211) is provided on the surface of the other side of the inner lining plate (21) and protrudes toward the side of the shock absorber (3); and a structure identical to the through hole on the inner lining plate (21) is provided at a position on the mounting plate (1) corresponding to the through hole.

3. A shock absorbing plate for a vehicle hydraulic retarder according to claim 2, characterized in that: The inner side of the protruding structure of the through hole on the inner lining plate (21) and the inner side of the protruding structure of the through hole on the mounting plate (1) are both covered with the material of the shock absorbing body (3).

4. A shock absorbing plate for a vehicle hydraulic retarder according to claim 1, characterized in that: The inner lining plate (21) is provided with a first counterweight hole (212), and the shape and position of the first counterweight hole (212) are used to adjust the adhesion areas on both sides of the inner lining plate (21) to be the same; the mounting plate (1) is provided with a second counterweight hole (11), and the shape and position of the second counterweight hole (11) are used to adjust the adhesion areas on both sides of the mounting plate (1) to be the same.

5. The shock absorbing plate for automobile hydraulic retarder according to claim 1, characterized in that: A positioning step (221) is provided at the non-threaded end of the connecting screw rod (22); and an anti-slip step (222) is provided at the end of the positioning step (221).

6. A damping plate forming device for automobile hydraulic retarder, applicable to any one of claims 1-5, characterized in that: It comprises an upper mold (4), a middle mold (5) and a lower mold (6); the upper mold (4) is used to position and place the mounting plate (1); the middle mold (5) is used to place the rubber material for making the shock absorbing body (3); and the lower mold (6) is used to position and place the connecting bracket (2).

7. The shock absorbing plate forming equipment for automobile hydraulic retarder according to claim 6, characterized in that: The lower mold (6) comprises a lower template (61), a molding column (62), a mounting block (63), a sliding sleeve (64), a connecting block (65), a driving member (66) and an electromagnet; a plurality of molding cavities are arranged on the lower template (61); a boss (611) is arranged on one side of the molding cavity, and a through hole is arranged on the other side of the molding cavity; the molding column (62) is arranged in the through hole; a gap is left between the step of the molding end of the molding column (62) and the through hole of the inner lining plate (21); the non-molding end of the molding column (62) is fixedly mounted on the lower template (61) through the mounting block (63); The molded column (62) is sleeved with the sliding sleeve (64) on the inner wall of the mounting groove on the back side of the mold plate (61); the outer cylindrical surface of one end of the sliding sleeve (64) serves as a positioning element when the connecting bracket (2) is placed, and the end surface of one end of the sliding sleeve (64) serves as a molding surface when the shock absorber (3) is molded; the other end of the sliding sleeve (64) is fixedly connected to the connecting block (65); the driving member (66) is used to drive the connecting block (65) to move along the sliding direction of the sliding sleeve (64); and the electromagnet is embedded in the lower mold plate (61) close to the molding cavity.

8. The shock absorbing plate forming equipment for automobile hydraulic retarder according to claim 7, characterized in that: The driving member (66) includes a cylinder (661), a buffer block (662), a gasket (663) and a retaining spring (664); the cylinder body of the cylinder (661) is fixedly connected to the inner wall of the mounting groove on the back side of the lower mold plate (61); the output shaft of the cylinder (661) passes through the sinking hole on the connecting block (65) and then is sequentially sleeved with the buffer block (662) and the gasket (663); the outer side of the gasket (663) is limited in axial position by the retaining spring (664); the lower mold (6) also includes the limiting member (67); the limiting member (67) is used to limit the position of the sliding sleeve (64) after retraction.

9. The damping plate forming equipment for automobile hydraulic retarder according to claim 7, characterized in that: The lower mold (6) further comprises a temperature sensor (68); the temperature sensor (68) is arranged in a mounting hole in the molding column (62); and a detection head of the temperature sensor (68) is arranged at the molding end of the molding column (62).

10. The shock absorbing plate forming equipment for automobile hydraulic retarder according to claim 8, characterized in that: The limiting member (67) is arranged on a mounting groove on the back side of the lower template (61); the limiting member (67) is fixedly connected to the lower template (61).

Images