Damping device for integrated hydraulic retarder control valve

Abstract

The utility model discloses a damping device for an integrated hydraulic retarder control valve, which comprises a top connecting steel plate and a bottom mounting steel plate, and a sealing damping component is arranged between the top connecting steel plate and the bottom mounting steel plate. A retarder inlet hole, a valve body self-discharging exhaust hole and a drainage special-shaped groove are formed in the top connecting steel plate, a first vent hole, a second vent hole and a glue injection hole are formed in the bottom mounting steel plate, and the sealing vibration reduction assembly comprises a rubber vibration reduction layer, an O-shaped sealing ring, a special-shaped rubber film and a special-shaped sealing ring which are integrally arranged. The rubber vibration reduction layer is installed between the top connecting steel plate and the bottom installing steel plate, a first air passing hole and a second air passing hole are formed in the rubber vibration reduction layer, the O-shaped sealing ring is sealed into a retarder air inlet hole, and the special-shaped sealing ring seals a drainage special-shaped groove. The precision and the strength of the sealing vibration reduction assembly are higher, the vibration reduction effect of the whole vibration reduction device is improved, and redundant charges on the structure are guided into the ground through the ground bonding unit to form an insulation structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile device, and relates to a damping device, concretely relates to a damping device for integrated hydraulic retarder control valve. BACKGROUND

[0002] With the development of the automation of the Chinese automobile industry, the integration and the intelligent degree of the vehicle components are higher and higher, and the requirements for the hydraulic retarder which is integrated with machines, electricity, gas and liquid are also higher, for example, saving space, realizing higher precision control and the like, and the hydraulic retarder control valve is evolved from a simple mechanical structure into an integrated assembly structure, including a mechanical module and a control module.

[0003] Mechanical vibration is generated when the hydraulic retarder works, if the control valve is directly connected with the hydraulic retarder, the vibration is transmitted to the control valve, which can cause the precise components such as the electromagnetic valve and the pneumatic actuator of the control valve to be damaged due to mechanical stress fatigue, and affect the stability of the braking force output, at present, the domestic hydraulic retarder control valve mainly installs the valve body on the retarder body through a damping plate, the gas from the vehicle gas source is transported to the retarder through the control valve and the damping plate, the gas generated by the control valve itself is also transported to the retarder through the damping plate, and finally the gas is discharged into the atmosphere through the exhaust hole of the retarder, in order to ensure the airtightness of the gas path, an independent sealing ring is usually arranged between the hydraulic retarder control valve and the damping plate to fill the gap between the interfaces.

[0004] The existing independent sealing ring is mostly an O-shaped ring, but the gas of the existing integrated hydraulic retarder control valve is mostly guided into the corresponding gas passing hole of the damping plate through a special-shaped groove structure, the sealing ring is not suitable for the special-shaped hole, there are many failure points in use, the airtightness between the control valve and the damping mechanism cannot be effectively ensured, the stability of the hydraulic system pressure is affected, at the same time, the external dust, water vapor and other pollutants can invade the control valve, causing the precise components in the control valve to be worn or blocked, affecting the service life of the hydraulic retarder control valve, and the surface of the existing integrated hydraulic retarder control valve shell is attached with excess static electricity, the metal structure of the damping plate can cause electromagnetic interference to the hydraulic retarder, affect the electronic signal link of the control valve, and cause the braking force output of the hydraulic retarder to be unstable or invalid. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model aims at providing a damping device for integrated hydraulic retarder control valve, which can solve the technical problems that the existing damping device has many sealing failure points, cannot effectively block pollutants and can cause electromagnetic interference.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The application discloses a damping device for an integrated hydraulic retarder control valve.

[0008] The top connecting steel plate comprises a connecting steel plate body, a plurality of threaded studs are fixedly installed at the top edge of the connecting steel plate body and arranged perpendicularly to the connecting steel plate body, an air inlet hole of the retarder and a valve body self-discharging exhaust hole are formed in the connecting steel plate body, a drainage special-shaped groove is processed at the top of the connecting steel plate body, the valve body self-discharging exhaust hole is arranged at one end in the drainage special-shaped groove, and a plurality of dredging glue injection holes are formed along the bottom edge of the drainage special-shaped groove.

[0009] The bottom mounting steel plate comprises a mounting steel plate body which is arranged in parallel with the connecting steel plate body, the mounting steel plate body is provided with a first air hole, a second air hole and a glue injection hole, and mounting edges are integrally processed at the transverse two ends of the mounting steel plate body, and mounting through holes are formed in the mounting edges.

[0010] The sealing damping assembly comprises an integrally arranged rubber damping layer, an O-shaped sealing ring, a special-shaped rubber film and a special-shaped sealing ring, the bottom of the rubber damping layer is fixedly connected with the top surface of the bottom mounting steel plate, the top of the rubber damping layer is fixedly connected with the bottom surface of the top connecting plate, the rubber damping layer is provided with a first air passing hole and a second air passing hole, the air inlet hole of the retarder, the first air hole and the first air passing hole are coaxially arranged, the valve body self-discharging exhaust hole, the second air hole and the second air passing hole are coaxially arranged, the bottom of the O-shaped sealing ring is integrally connected with the top of the first air passing hole, the top of the O-shaped sealing ring passes through the air inlet hole of the retarder and covers the edge of the air inlet hole of the retarder, the bottom end of the first air passing hole is flush with the bottom end of the first air hole, the special-shaped rubber film is same in structure with the drainage special-shaped groove, the rubber film covers the upper surface of the drainage special-shaped groove, the special-shaped rubber film is provided with a connecting hole corresponding to the valve body self-discharging exhaust hole, the top end of the second air passing hole is integrally connected with the connecting hole, the special-shaped sealing ring is integrally connected with the special-shaped rubber film, the special-shaped sealing ring wraps the top edge of the drainage special-shaped groove, and the bottom end of the second air passing hole is flush with the bottom end of the second air hole.

[0011] The utility model discloses still include following technical features:

[0012] The upper surface of the mounting steel plate body is provided with two annular grooves, the two annular grooves are coaxially arranged with the first air hole and the second air hole respectively, the bottom surface of the rubber damping layer is integrally provided with two convex rings corresponding to the two annular grooves respectively, and the convex ring is matched with the annular groove to fix the rubber damping layer on the mounting steel plate body.

[0013] The circumferential edge of the top connecting steel plate is wrapped with an upper rubber film, the circumferential edge of the bottom mounting steel plate is wrapped with a lower rubber film, the upper surface of the mounting edge is covered with a covering rubber film which is integrally connected with the lower rubber film, and the upper rubber film, the lower rubber film and the covering rubber film are integrally arranged with the rubber damping layer.

[0014] The covering rubber film is provided with a reserved mounting hole corresponding to the position of the mounting through hole.

[0015] The upper surface of the top connecting steel plate is processed with a process hole.

[0016] The utility model also comprises a clamping iron unit arranged between the top connecting steel plate and the bottom mounting steel plate, the clamping iron unit is embedded in the rubber damping layer, the clamping iron unit comprises an insulating wire, both ends of the insulating wire are provided with connecting clips, the bottom surface of the top connecting steel plate and the upper surface of the bottom mounting steel plate are provided with fixed screw rods, a pair of connecting clips are respectively sleeved on a pair of fixed screw rods, and the connecting clips are fixedly connected with the top connecting steel plate and the bottom mounting steel plate through connecting nuts.

[0017] The diameter of the fixed screw rod is 5mm.

[0018] Compared with the prior art, the utility model has the following technical effects:

[0019] (I) the integrated structure of the sealing damping assembly can effectively improve the airtightness between the damping device and the integrated hydraulic retarder control valve while ensuring the damping effect, avoid direct contact between gas and metal structure, effectively block pollutants from entering the control valve, and improve the service life of the control valve and the damping device.

[0020] (II) the clamping iron unit built inside the utility model can guide the excess charge on the structure into the ground to form an insulating structure, thereby ensuring that the integrated hydraulic retarder control valve functions normally and has accurate control precision when working. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic view of the utility model.

[0022] Figure 2 It is the top connecting steel plate schematic view of the utility model.

[0023] Figure 3 It is the bottom mounting steel plate structure schematic view of the utility model Figure 1 .

[0024] Figure 4 It is the overall structure sectional view of the utility model.

[0025] Figure 5It is the lacing iron unit structure schematic diagram of the utility model.

[0026] Figure 6 It is the use state reference drawing of the utility model.

[0027] The meaning of each reference numeral in the drawing is as follows:

[0028] 1, top connecting steel plate, 2, bottom mounting steel plate, 3, process hole, 4, lacing iron unit, 5, sealing damping assembly, 6, fixed screw rod, 7, connecting nut;

[0029] 11, connecting steel plate body, 12, stud, 13, into the air intake hole of retarder, 14, valve body self-unloading exhaust hole, 15, drainage special-shaped groove, 16, dredging glue injection hole, 17, upper rubber film;

[0030] 21, mounting steel plate body, 22, first air hole, 23, second air hole, 24, mounting edge, 25, mounting through hole, 26, annular groove, 27, lower rubber film, 28, covering rubber film, 29, glue injection hole;

[0031] 41, insulated wire, 42, connecting clip;

[0032] 51, rubber damping layer, 52, O-shaped sealing ring, 53, special-shaped rubber film, 54, special-shaped sealing ring, 55, first air hole, 56, second air hole, 57, connecting hole, 58, convex ring.

[0033] The specific content of the utility model is further explained and described in detail in combination with the following embodiments. DETAILED DESCRIPTION

[0034] According to the above technical scheme, the specific embodiments of the utility model are given below, and it should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical scheme of the application falls within the protection scope of the utility model.

[0035] In the utility model, the orientation words such as 'up', 'down', 'left', 'right' and the like are usually defined with the drawing surface in the corresponding drawing as the reference under the condition that no opposite statement is made, 'inner' and 'outer' refer to the inner and outer of the outline of the corresponding components, and 'longitudinal', 'transverse' and'vertical' refer to the direction marked in the drawing.

[0036] EMBODIMENT:

[0037] The embodiment gives a kind of damping device for integrated hydraulic retarder control valve, as shown in Fig. Figures 1 to 6 Sealing damping assembly 5 is arranged between top connecting steel plate 1 and bottom mounting steel plate 2.

[0038] The top connecting steel plate 1 comprises a connecting steel plate body 11, a plurality of studs 12 vertically arranged on the top edge of the connecting steel plate body 11, a retarder air inlet hole 13 and a valve body self-unloading exhaust hole 14 formed on the connecting steel plate body 11, a drainage special-shaped groove 15 formed on the top of the connecting steel plate body 11, the valve body self-unloading exhaust hole 14 arranged at one end of the drainage special-shaped groove 15, and a plurality of dredging glue injection holes 16 formed along the bottom edge of the drainage special-shaped groove 15.

[0039] The bottom mounting steel plate 2 comprises a mounting steel plate body 21 arranged in parallel with the connecting steel plate body 11, a first air hole 22, a second air hole 23 and a glue injection hole 29 formed on the mounting steel plate body 21, and mounting edges 24 integrally formed at the transverse ends of the mounting steel plate body 21, and mounting through holes 25 formed on the mounting edges 24.

[0040] The sealing and damping assembly 5 comprises a rubber damping layer 51, an O-shaped sealing ring 52, a special-shaped rubber film 53 and a special-shaped sealing ring 54 arranged integrally, the bottom of the rubber damping layer 51 fixedly connected with the top surface of the bottom mounting steel plate 2, the top of the rubber damping layer 51 fixedly connected with the bottom surface of the top connecting steel plate 1, the rubber damping layer 51 provided with a first air passing hole 55 and a second air passing hole 56, the retarder air inlet hole 13, the first air hole 22 and the first air passing hole 55 coaxially arranged, the valve body self-unloading exhaust hole 14, the second air hole 23 and the second air passing hole 56 coaxially arranged, the bottom of the O-shaped sealing ring 52 integrally connected with the top of the first air passing hole 55, the top of the O-shaped sealing ring 52 passing through the retarder air inlet hole 13 and covering the edge of the retarder air inlet hole 13, the bottom end of the first air passing hole 55 flush with the bottom end of the first air hole 22, the special-shaped rubber film 53 having the same structure as the drainage special-shaped groove 15, the special-shaped rubber film 53 covering the groove bottom surface of the drainage special-shaped groove 15, the special-shaped rubber film 53 provided with a connecting hole 57 corresponding to the valve body self-unloading exhaust hole 14, the top end of the second air passing hole 56 integrally connected with the connecting hole 57, the special-shaped sealing ring 54 integrally connected with the special-shaped rubber film 53, the special-shaped sealing ring 54 wrapped around the top edge of the drainage special-shaped groove 15, and the bottom end of the second air passing hole 56 flush with the bottom end of the second air hole 23.

[0041] In this embodiment, the sealing and damping assembly 5 is made by using the glue vulcanization process. The glue is in liquid state at high temperature, and flows along the predetermined track through the mold guide, and finally cools and sets. The product made in this way has higher precision control, higher strength and better corrosion resistance. The top connecting steel plate 1 and the bottom mounting steel plate 2 are installed in the mold, and the glue is injected into the mold through the glue injection hole 29. At the same time, the glue is injected into the drainage special-shaped groove 15 in sections through the multiple sectional distribution drainage glue injection holes 16, which not only ensures the sufficiency of vulcanization, but also improves the utilization rate of glue. The sealing and damping assembly 5 becomes an integrated whole with damping and sealing properties, and has higher precision and strength, which improves the damping effect of the whole damping device. The air inlet hole 13 of the retarder corresponds to the exhaust hole on the valve body of the hydraulic retarder control valve, the exhaust hole on the valve body of the hydraulic retarder control valve is in communication with the air path connected to the air source of the whole vehicle, and the airflow flows into the hydraulic retarder through the air inlet hole 13 of the retarder, the first air passage 55 and the first air hole 22 in sequence. The O-shaped sealing ring 52 is used to ensure the airtightness between the air inlet hole 13 of the retarder and the exhaust hole on the valve body of the hydraulic retarder control valve. The drainage special-shaped groove 15 corresponds to the special-shaped groove structure on the valve body, and the air hole for discharging the gas of the integrated hydraulic retarder control valve corresponds to the other end of the drainage special-shaped groove 15. When the retarder is depressurized, the gas of the integrated hydraulic retarder control valve and the gas flowing back into the integrated hydraulic retarder control valve from the hydraulic retarder are introduced into the valve body self-unloading exhaust hole 14 through the drainage special-shaped groove 15, and then flow into the hydraulic retarder through the second air passage 56 and the second air hole 23. Finally, the gas is discharged into the atmosphere through the exhaust hole of the hydraulic retarder. The special-shaped sealing ring 54 closely fits the edge of the special-shaped groove structure, effectively avoiding the generation of failure points. The integrated structure of the sealing and damping assembly 5 effectively improves the airtightness between the damping device and the integrated hydraulic retarder control valve while ensuring the damping effect, avoids direct contact between the gas and the metal structure, effectively blocks the pollutants from entering the control valve, and improves the service life of the control valve and the damping device.

[0042] As a preferred embodiment of the present embodiment, two annular grooves 26 are formed on the upper surface of the mounting steel plate body 21, which increases the contact area between the rubber and the metal structure during the vulcanization process, thereby greatly improving the stability and reliability of the sealing and damping assembly 5 during operation. The bottom surface of the rubber damping layer 51 formed after shaping has two convex rings 58 corresponding to the annular grooves 26. The convex rings 58 cooperate with the annular grooves 26 to fix the rubber damping layer 51 on the mounting steel plate body 21.

[0043] As a preferred scheme of the embodiment, the circumferential edge of the top connecting steel plate 1 is wrapped with the upper rubber film 17, the circumferential edge of the bottom mounting steel plate 2 is wrapped with the lower rubber film 27, the upper surface of the mounting edge 24 is covered with the covering rubber film 28 which is integrally connected with the lower rubber film 27, and the upper rubber film 17, the lower rubber film 27 and the covering rubber film 28 are integrally provided with the rubber damping layer 51, so that the damping device is provided with a full rubber structure except for the assembly surface, the service life of the damping device is improved, and the stability of the connection is ensured.

[0044] As a preferred scheme of the embodiment, the covering rubber film 28 is provided with a reserved mounting hole corresponding to the position of the mounting through hole 25, so that the bolt mounting precision is ensured.

[0045] As a preferred scheme of the embodiment, the upper surface of the top connecting steel plate 1 is processed with the process hole 3 which is used for positioning and connecting with the mold when the damping device is injected with rubber, so that the forming accuracy of the sealed damping assembly is ensured.

[0046] As a preferred scheme of the embodiment, the embodiment further includes the grounding unit 4 which is arranged between the top connecting steel plate 1 and the bottom mounting steel plate 2, the grounding unit 4 is embedded in the rubber damping layer 51, the grounding unit 4 includes the insulating wire 41, both ends of the insulating wire 41 are provided with the connecting clip 42, the bottom surface of the top connecting steel plate 1 and the upper surface of the bottom mounting steel plate 2 are provided with the fixing screw 6, a pair of connecting clips 42 are respectively sleeved on a pair of fixing screws 6, the connecting clip 42 is fixedly connected with the top connecting steel plate 1 and the bottom mounting steel plate 2 through the connecting nut 7, the excess charge is transmitted to the bottom mounting steel plate 2 through the fixing screw 6 of the top connecting steel plate 1, the connecting clip 42 and the insulating wire 41, and finally introduced into the ground through the whole vehicle, so that the functional safety of the product is ensured, and the electromagnetic interference from the outside is avoided.

[0047] As a preferred scheme of the embodiment, the diameter of the fixing screw 6 is 5mm.

[0048] In actual operation of the embodiment:

[0049] The damping device is installed on the hydraulic retarder shell through the mounting hole 25 by bolts during use, and is assembled with the integrated hydraulic retarder control valve through the stud 12 on the top connecting steel plate 1. When the integrated hydraulic retarder control valve receives a signal from the control component, the vehicle air source enters the hydraulic retarder through the valve body and the damping device. When the vehicle needs to remove the force applied to the hydraulic retarder, the integrated hydraulic retarder control valve stops working. After the pressure of the compressed gas in the hydraulic retarder cavity is lost, part of the gas is directly discharged through the exhaust port on the shell, and part of the gas flows back into the integrated hydraulic retarder control valve through the air return on the damping device. The gas generated by the integrated hydraulic retarder control valve is collected and discharged into the hydraulic retarder through the damping device, and finally discharged through the exhaust port on the hydraulic retarder shell. During the whole process, the O-shaped sealing ring 52 and the special-shaped sealing ring 54 ensure the airtightness between the components, the earthing unit 4 guides the excess charge to the ground to form an insulating structure, thereby ensuring the normal function of the integrated hydraulic retarder control valve during work and accurate control precision.

Claims

1. An integrated hydraulic retarder control valve damper characterized by, The application relates to a top connecting steel plate (1) and a bottom mounting steel plate (2), and a sealing and damping assembly (5) is arranged between the top connecting steel plate (1) and the bottom mounting steel plate (2). The top connecting steel plate (1) comprises a connecting steel plate body (11), a plurality of threaded studs (12) are fixedly arranged on the top edge of the connecting steel plate body (11) and arranged perpendicularly to the connecting steel plate body (11), an air inlet hole (13) and a valve body self-unloading exhaust hole (14) are formed in the connecting steel plate body (11), a drainage special-shaped groove (15) is formed on the top of the connecting steel plate body (11), the valve body self-unloading exhaust hole (14) is arranged at one end in the drainage special-shaped groove (15), and a plurality of dredging glue injection holes (16) are formed along the bottom edge of the drainage special-shaped groove (15). The bottom mounting steel plate (2) comprises a mounting steel plate body (21) which is arranged in parallel with the connecting steel plate body (11), a first air hole (22), a second air hole (23) and a glue injection hole (29) are formed in the mounting steel plate body (21), and mounting edges (24) are integrally formed on the transverse two ends of the mounting steel plate body (21) and are provided with mounting through holes (25). The sealing and damping assembly (5) comprises an integrally arranged rubber damping layer (51), an O-shaped sealing ring (52), a special-shaped rubber film (53) and a special-shaped sealing ring (54), the bottom of the rubber damping layer (51) is fixedly connected with the top surface of the bottom mounting steel plate (2), the top of the rubber damping layer (51) is fixedly connected with the bottom surface of the top connecting steel plate (1), the rubber damping layer (51) is provided with a first air passing hole (55) and a second air passing hole (56), the air inlet hole (13), the first air hole (22) and the first air passing hole (55) are coaxially arranged, the valve body self-unloading exhaust hole (14), the second air hole (23) and the second air passing hole (56) are coaxially arranged, the bottom of the O-shaped sealing ring (52) is integrally connected with the top of the first air passing hole (55), the top of the O-shaped sealing ring (52) passes through the air inlet hole (13) and covers the edge of the air inlet hole (13), the bottom end of the first air passing hole (55) is flush with the bottom end of the first air hole (22), the special-shaped rubber film (53) is the same as the drainage special-shaped groove (15) in structure, the special-shaped rubber film (53) covers the bottom surface of the drainage special-shaped groove (15), the special-shaped rubber film (53) is provided with a connecting hole (57) corresponding to the valve body self-unloading exhaust hole (14), the top end of the second air passing hole (56) is integrally connected with the connecting hole (57), the special-shaped sealing ring (54) is integrally connected with the special-shaped rubber film (53), the special-shaped sealing ring (54) wraps the top edge of the drainage special-shaped groove (15), and the bottom end of the second air passing hole (56) is flush with the bottom end of the second air hole (23).

2. The integrated hydraulic retarder control valve damper device of claim 1, wherein The upper surface of the mounting steel plate body (21) is provided with two annular grooves (26), the two annular grooves (26) are coaxially arranged with the first air hole (22) and the second air hole (23) respectively, the bottom surface of the rubber damping layer (51) is integrally provided with two convex rings (58) corresponding to the two annular grooves respectively, the convex ring (58) is matched with the annular groove (26) to fix the rubber damping layer (51) on the mounting steel plate body (21).

3. The integrated hydraulic retarder control valve damper according to claim 1, wherein The circumferential edge of the top connecting steel plate (1) is wrapped with an upper rubber film (17), the circumferential edge of the bottom mounting steel plate (2) is wrapped with a lower rubber film (27), the upper surface of the mounting edge (24) is covered with a covering rubber film (28) integrally connected with the lower rubber film (27), and the upper rubber film (17), the lower rubber film (27) and the covering rubber film (28) are integrally arranged with the rubber damping layer (51).

4. The integrated hydraulic retarder control valve damper device of claim 3, wherein The covering rubber film (28) is provided with a reserved mounting hole corresponding to the position of the mounting through hole (25).

5. The integrated hydraulic retarder control valve damper as set forth in claim 1, wherein The upper surface of the top connecting steel plate (1) is processed with a process hole (3).

6. The integrated hydraulic retarder control valve damping device of claim 1, wherein It also includes a clout unit (4) arranged between the top connecting steel plate (1) and the bottom mounting steel plate (2), the clout unit (4) is embedded in the rubber damping layer (51), the clout unit (4) includes an insulating wire (41), both ends of the insulating wire (41) are provided with a connecting clip (42), the bottom surface of the top connecting steel plate (1) and the upper surface of the bottom mounting steel plate (2) are provided with a fixed screw rod (6), a pair of connecting clips (42) are respectively sleeved on a pair of fixed screw rods (6), and the connecting clip (42) is fixedly connected with the top connecting steel plate (1) and the bottom mounting steel plate (2) through a connecting nut (7).

7. The integrated hydraulic retarder control valve damper according to claim 6, wherein The diameter of the fixed screw rod (6) is 5mm.

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