Electromagnetic force testing device for built-in valve of electric control shock absorber

Abstract

The utility model discloses an electromagnetic force testing device for a built-in valve of an electric control shock absorber, and the device comprises a supporting frame which is a supporting mechanism of a built-in valve assembly of the electric control shock absorber; a V-shaped groove is formed in the middle of the positioning V seat; the lower end of the positioning V seat is connected with the upper end of the supporting frame; the locking buckle is arranged on the side wall of the V-shaped positioning seat at the opening end of the V-shaped groove; a square groove is formed in the middle of the cover plate; the cover plate is arranged at the upper end of the positioning V seat; a circular through hole and two symmetrical guide grooves are axially formed in the guide sleeve; the guide sleeve is mounted in the built-in valve assembly; the wire plug-in connector is arranged on the side edge of the supporting frame and is connected with the power supply connecting end of the built-in valve assembly; one end of the valve element clamping piece penetrates through the square groove and is connected with the built-in valve assembly through the guide sleeve; one end of the force sensor is connected with the other end of the valve element clamping piece, and the other end of the force sensor is connected with a central control computer.

Description

Technical Field

[0001] This utility model belongs to the technical field of testing built-in valves of electronically controlled vibration dampers, and specifically relates to an electromagnetic force testing device for built-in valves of electronically controlled vibration dampers. Background Technology

[0002] Electronically controlled shock absorbers are advanced automotive suspension system components. The electromagnetic force characteristics of the built-in valves in electronically controlled shock absorbers have a crucial impact on vehicle handling, comfort, and safety. With the continuous development of automotive technology, the application of electronically controlled shock absorbers is becoming increasingly widespread, and the demand for electromagnetic force testing of the built-in valves is also increasing. However, existing methods and devices for testing the electromagnetic force of built-in valves in electronically controlled shock absorbers have many shortcomings. Traditional testing devices typically use complex threaded connections to fix the piston rod. This connection method is not only cumbersome and time-consuming, but may also lead to reduced testing accuracy due to thread wear or assembly errors. Furthermore, existing testing devices lack efficient guiding structures when installing the built-in valve, resulting in a complex assembly process and difficulty in ensuring assembly accuracy. Utility Model Content

[0003] The purpose of this invention is to provide an electromagnetic force testing device for the built-in valve of an electronically controlled vibration damper. It has a simple structure and can quickly install and position the built-in valve assembly of the electronically controlled vibration damper under test.

[0004] The technical solution provided by this utility model is as follows:

[0005] An electromagnetic force testing device for an electronically controlled vibration damper with a built-in valve includes:

[0006] The support frame is the support mechanism for the built-in valve assembly of the electronically controlled shock absorber;

[0007] A positioning V-shaped seat is provided, with a V-shaped groove in its middle; the lower end of the positioning V-shaped seat is connected to the upper end of the support frame.

[0008] A locking buckle is provided on the side wall of the positioning V-seat at the opening end of the V-groove;

[0009] A cover plate, with a square groove in its middle; the cover plate is disposed on the upper end of the positioning V-shaped seat;

[0010] The V-shaped groove and the square groove are coaxially arranged and have the same opening direction; the built-in valve assembly is disposed in the V-shaped groove, and the positioning V-seat cooperates with the locking buckle to fix the built-in valve assembly;

[0011] The guide sleeve is a stepped hollow cylindrical structure; the guide sleeve has an axially arranged circular through hole and two guide grooves symmetrical about the central axis of the cylindrical structure; the guide sleeve is installed inside the built-in valve assembly;

[0012] A wire connector is arranged at the side of the support frame and connected with the power supply end of the built-in valve assembly.

[0013] A valve core clamp is arranged at one end of the square slot and connected with the built-in valve assembly through the guide sleeve.

[0014] A force sensor is connected with the other end of the valve core clamp at one end and connected with the central control computer at the other end.

[0015] Preferably, the support frame comprises:

[0016] A base is arranged horizontally.

[0017] A plurality of support shafts are fixedly connected with the base at one end.

[0018] A plurality of connecting plates are arranged on the support shafts in parallel to the base and evenly arranged at the middle part of the support shafts.

[0019] Preferably, the U-shaped slot, the V-shaped slot and the square slot are coaxially arranged and have the same opening direction.

[0020] Preferably, the base is composed of a rectangular bottom plate and a rectangular boss; the rectangular boss is arranged at the center of the upper surface of the rectangular bottom plate; the four corners of the rectangular bottom plate are provided with threaded holes for fixing the testing device on the workbench.

[0021] Preferably, the number of the support shafts is four; one end of each of the four support shafts is fixedly connected with the four corners of the rectangular boss; the number of the connecting plates is two, which are the middle connecting plate and the upper connecting plate; the middle connecting plate is arranged at the middle part of the support shafts, and the upper connecting plate is arranged at the other end of the support shafts.

[0022] Preferably, the built-in valve assembly comprises:

[0023] A built-in valve body;

[0024] An electromagnetic valve core is arranged in the built-in valve body and connected with the valve core clamp;

[0025] A valve hole is arranged inside the electromagnetic valve core end close to the built-in valve body; the electromagnetic valve core reciprocates in the valve hole;

[0026] A bakelite paper is wrapped around the outer wall of the electromagnetic valve core.

[0027] Preferably, the guide sleeve is composed of three hollow cylinders with different diameters; the three hollow cylinders are coaxially arranged and sequentially connected in order of decreasing diameter to form the guide sleeve; the guide sleeve is arranged inside the electromagnetic valve core end of the built-in valve body; wherein the outer diameter of the electromagnetic valve core wrapped with the bakelite paper matches the inner diameter of the circular through hole.

[0028] Preferably, the valve core clamp is arranged in the guide groove, and the valve core clamp is inserted into the electromagnetic valve core through the guide sleeve.

[0029] Preferably, the utility model also comprises a flat clamp arranged between the force sensor and the valve core clamp; one end of the flat clamp is provided with a clamping device and connected with the valve core clamp, and the other end is connected with the force sensor.

[0030] Preferably, the valve core clamp is made of stainless steel; one end of the valve core clamp is in a sheet structure and connected with the electromagnetic valve core; the other end of the valve core clamp is provided with a knurled structure and connected with the flat clamp; and the middle part of the valve core clamp is provided with an oval weight-reducing hole.

[0031] The utility model discloses the beneficial effect is:

[0032] The utility model discloses an electromagnetic force testing device for built-in valve of electronic control shock absorber, through the combination design of positioning V seat and locking buckle, make the loading and clamping process of built-in valve assembly more convenient and fast, do not need complex thread connection, realize the quick positioning and clamping of built-in valve assembly, significantly promote test efficiency and stability, the valve core clamp adopts stainless steel material and is provided with oval weight-reducing hole, reduces the weight of valve core clamp, reduces the error caused by the inertia of motion, guarantees electromagnetic force measurement accuracy, the valve core clamp inserts electromagnetic valve core through the guide sleeve, makes valve core clamp installation convenient, the side sets up wire plug connector, and the operation convenience has been improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the overall structure schematic diagram of the utility model discloses the electromagnetic force testing device for built-in valve of electronic control shock absorber.

[0034] Figure 2 It is the valve body fixed mould structure schematic diagram of the utility model.

[0035] Figure 3 It is the positioning V seat structure schematic diagram of the utility model.

[0036] Figure 4 It is the locking buckle structure schematic diagram of the utility model.

[0037] Figure 5 It is the positioning sleeve structure schematic diagram of the utility model.

[0038] Figure 6 The valve core clamping piece and the electromagnetic valve core combined body structure schematic view is provided by the utility model.

[0039] Figure 7 The built-in valve assembly structure schematic view is provided by the utility model.

[0040] Figure 8 The valve core clamping piece and the electromagnetic valve core installation structure schematic view is provided by the utility model.

[0041] BASIS: base 110, rectangular bottom plate 111, rectangular boss 112, mounting threaded hole 113, support shaft 120, middle connecting plate 131, upper connecting plate 132, U-shaped groove 133, positioning V seat 140, V-shaped groove 141, locking buckle 150, connecting lifting lug 151, cover plate 160, square groove 161, guide sleeve 200, middle diameter hollow cylinder 211, small diameter hollow cylinder 212, circular through hole 221, guide groove 222, wire plug connector 310, valve core clamping piece 320, oval lightening hole 321, flat piece clamp 330, force sensor 340, built-in valve assembly 400, built-in valve body 410, power supply connection end 411, electromagnetic valve core 420, valve inner hole 430, bakelite paper 440. DETAILED DESCRIPTION

[0042] The utility model makes further detailed description in combination with the drawings, so that the person skilled in the art can implement according to the description text.

[0043] As Figure 1 shown, the utility model provides a kind of built-in valve electromagnetic force testing device of electric control shock absorber, it includes:

[0044] The valve body fixing jig is used for supporting and fixing the built-in valve assembly 400 of the electronically controlled shock absorber. The valve body fixing jig comprises a support frame which is a support mechanism of the built-in valve assembly of the electronically controlled shock absorber. The support frame comprises a base 110 horizontally arranged at the bottom of the testing device, a plurality of support shafts 120 fixedly connected to one end of the base 110, and a plurality of connecting plates each having a U-shaped groove 133 in the middle and arranged on the support shafts 120 in parallel to the base 110. A positioning V-shaped seat 140 having a V-shaped groove 141 in the middle is connected to the upper end of the support frame. A locking buckle 150 is arranged on the side wall of the positioning V-shaped seat 140 at the opening end of the V-shaped groove 141 and used for locking or releasing the built-in valve assembly 400. A cover plate 160 having a square groove 161 in the middle for passing the valve core clamp 320 is arranged on the upper end of the positioning V-shaped seat 140. The U-shaped groove 133, the V-shaped groove 141 and the square groove 161 are coaxially arranged and have the same opening direction. The built-in valve assembly 400 is arranged in the U-shaped groove 133 and the V-shaped groove 141. The positioning V-shaped seat 140 and the locking buckle 150 cooperate to fix the built-in valve assembly 400, so that the built-in valve assembly is more convenient and fast to load and clamp, without complex threaded connection, to realize quick positioning and clamping of the built-in valve assembly and significantly improve the testing efficiency and stability.

[0045] A wire connector 310 is arranged on the side of the support frame, fixedly installed on the support shaft 120 and connected to the power supply connection end 411 of the built-in valve assembly 400. The wire connector 310 is simultaneously connected to the power supply to provide power for the built-in valve assembly 400, thereby improving the operation convenience.

[0046] A guide sleeve 200 is arranged in the interior of the built-in valve assembly 400 and sleeved on the outside of the electromagnetic valve core 420, used for guiding the installation of the valve core clamp 320.

[0047] The valve core clamp 320 is arranged in the square groove 161 and connected to one end of the built-in valve assembly 400. The square groove 161 has a guiding and restraining effect to prevent the valve core clamp 320 from deviating during movement. A flat clamp 330 has a clamping device at one end and clamps the other end of the valve core clamp 320 through the clamping device to realize the fixed connection of one end of the flat clamp 330 with the other end of the valve core clamp 320. A force sensor 340 is used for testing electromagnetic force. One end of the force sensor 340 is fixedly connected to the other end of the flat clamp 330 through a bolt, and the other end is connected to a central control computer through a wire to transmit the data collected by the force sensor 340 to the central control computer.

[0048] AsFigure 2 As shown, in this embodiment, the support frame includes: a base 110 composed of a rectangular base plate 111 and a rectangular boss 112; the rectangular boss 112 is fixedly disposed at the center of the upper surface of the rectangular base plate 111; each of the four corners of the rectangular base plate 111 is provided with a mounting threaded hole 113 for fixing the testing device on the workbench; the base 110 is an integrally formed structure, or it can be formed by welding the rectangular base plate 111 and the rectangular boss 112; there are four support shafts 120, one end of each of the four support shafts 120 is fixedly connected to the four corners of the rectangular boss 112; there are two connecting plates, namely a middle connecting plate 131 and an upper connecting plate 132; the middle connecting plate 131 is disposed in the middle of the support shaft 120, and the upper connecting plate 132 is disposed at the other end of the support shaft 120.

[0049] like Figure 3 As shown, in this embodiment, the positioning V-seat 140 is a cuboid with a V-groove 141 in the middle; the upper end, lower end and side wall of the positioning V-seat 140 are provided with threaded holes for connecting with the cover plate 160, the support frame and the locking buckle 150 by bolts.

[0050] like Figure 4 As shown, in this embodiment, the locking buckle 150 is hinged to the positioning V-seat 140 via the connecting lug 151, and the connecting lug 151 and the positioning V-seat 140 are fixedly connected by bolts.

[0051] like Figure 5 As shown, in this embodiment, the guide sleeve is a stepped hollow cylindrical structure composed of three hollow cylinders with different diameters. The three hollow cylinders are coaxially arranged and connected in descending order of diameter. Guide portions are provided at the end near the connection between the medium-diameter hollow cylinder 211 and the small-diameter hollow cylinder 212, as well as at the other end of the small-diameter hollow cylinder 212, to facilitate the installation of the guide sleeve 200 into the built-in valve assembly 400. The guide sleeve 200 has an axially arranged circular through hole 221 and two guide grooves 222 symmetrical about the central axis of the cylindrical structure. The size of the circular through hole 221 matches the size of the solenoid valve core 420 of the built-in valve assembly 400, and the size of the guide grooves 222 matches the size of the valve core clip 320.

[0052] like Figure 6As shown, the valve core clamp 320 is arranged in the guide groove 222, and the valve core clamp 320 is precisely inserted into the electromagnetic valve core 420 through the guide sleeve 200, so that the valve core clamp 320 is conveniently installed, and the operation convenience is improved; the valve core clamp 320 is made of stainless steel; one end of the valve core clamp 320 is in a sheet structure and is precisely connected with the electromagnetic valve core 420; the other end of the valve core clamp 320 is provided with a knurled anti-skid structure, so that the connection between the valve core clamp 320 and the flat clamp 330 is firm and reliable; the middle part of the valve core clamp 320 is provided with an oval weight-reducing hole 321, so as to effectively reduce the weight of the valve core clamp 320 while ensuring the structural strength, reduce the interference of the weight of the valve core clamp 320 on the test result, thereby reducing the error caused by the motion inertia and ensuring the electromagnetic force measurement accuracy.

[0053] As shown in Figure 7 The built-in valve assembly 400 includes: a built-in valve body 410; an electromagnetic valve core 420 arranged in the built-in valve body 410 and connected with the valve core clamp 320; a valve hole 430 arranged inside the electromagnetic valve core end of the built-in valve body 410; after the guide wire connector 310 is connected with the power supply, the built-in valve assembly 400 obtains current and drives the electromagnetic valve core 420 to reciprocate in the valve hole 430; bakelite paper 440 wrapped on the outer wall of the electromagnetic valve core 420; the electromagnetic valve core 420 is insulated from the valve hole 430 through the bakelite paper 440; the outer diameter of the electromagnetic valve core 420 wrapped with the bakelite paper 440 matches the inner diameter of the circular through hole 221, so that the electromagnetic valve core 420 wrapped with the bakelite paper 440 is just inserted into the guide sleeve 200.

[0054] As shown in Figure 8 The bakelite paper 440 is wrapped on the outside of the electromagnetic valve core 420; the small-diameter end of the guide sleeve 200 faces the valve hole 430, the guide sleeve 200 is arranged in the inside of the electromagnetic valve core end of the built-in valve body 410, the guide sleeve 200 is coaxially arranged with the valve hole 430, and the electromagnetic valve core 420 wrapped with the bakelite paper 440 is arranged in the circular through hole 221; the valve core clamp 320 is arranged in the guide groove 222, the valve core clamp 320 is inserted into the electromagnetic valve core 420 through the guide groove 222, and the assembly is completed.

[0055] The specific steps of the electromagnetic force test of the built-in valve of the electric control shock absorber are as follows: step one, the guide sleeve 200 is installed in the inner part of the electromagnetic valve core end of the built-in valve body 410, the electromagnetic valve core 420 wrapped with the bakelite paper 440 is arranged in the circular through hole 221, the valve core clamp 320 is arranged along the guide groove 222, one end of the valve core clamp 320 is accurately inserted into the electromagnetic valve core 420, and the assembly is completed; step two, after the valve core clamp 320 is installed with the built-in valve assembly 400, the built-in valve assembly 400 is installed in the V-shaped groove 141 and the U-shaped groove 133, the valve core clamp 320 is arranged in the square groove 161, the positioning V seat 140 is matched with the locking buckle 150, the electromagnetic valve core end of the built-in valve assembly 400 is fixed on the valve body fixing jig, and the other end of the valve core clamp 320 is clamped by the flat clamp 330; step three, after the built-in valve assembly 400 is fixed on the valve body fixing jig, the wire connector 310 is connected with the power supply connection end 411 of the built-in valve assembly 400, the power supply is started, the built-in valve assembly 400 drives the electromagnetic valve core 420 to reciprocate in the valve hole 430 after being electrified, the electromagnetic force borne by the electromagnetic valve core 420 is measured by the force sensor 340 and transmitted to the central control computer through a wired transmission, and thus the electromagnetic force test of the built-in valve of the electric control shock absorber is completed.

[0056] The electromagnetic force test device for the built-in valve of the electric control shock absorber has the advantages that the device has a simple structure, adopts a four-column three-board frame structure, the positioning V seat and the locking buckle are combined to quickly clamp and lock the built-in valve assembly in the V-shaped groove, the clamping and locking process of the built-in valve assembly is more convenient and fast, the built-in valve assembly is quickly positioned and clamped, the traditional threaded connection mode is replaced, the complicated threaded connection is not needed, the assembly time is shortened, and the test efficiency and stability are significantly improved; the valve core clamp is made of stainless steel, one end connected with the electromagnetic valve core is designed in a thin sheet, the valve core clamp and the electromagnetic valve core are accurately matched, the composite guide structure of the circular through hole in the guide sleeve and the guide groove is combined, the valve core clamp is conveniently installed, the movement track error of the valve core is reduced, the outer surface of one end connected with the flat clamp of the valve core clamp is treated by knurling, the clamping force is enhanced, the design of the oval weight-reducing hole reduces the weight of the valve core clamp, the error caused by the movement inertia is reduced, and the electromagnetic force measurement accuracy is ensured; the side wire connector is integrated, the insertion operation of the built-in valve wire is more convenient, the circuit connection time is reduced, the wire winding does not interfere with the test result, and the test accuracy and convenience are further improved.

[0057] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A device for testing the electromagnetic force of a built-in valve in an electronically controlled vibration damper, characterized in that, The utility model relates to a kind of built-in valve assemblies of electric control shock absorber, including: Support frame, which is a supporting mechanism for the built-in valve assembly; Positioning V seat, with V-shaped groove in the middle; The lower end of the positioning V seat is connected with the upper end of the support frame; Locking buckle, which is arranged on the side wall of the positioning V seat at the opening end of the V-shaped groove; Cover plate, with a square slot in the middle; The cover plate is arranged on the upper end of the positioning V seat; Wherein, the V-shaped groove and the square slot are coaxially arranged and the opening directions are consistent; The built-in valve assembly is arranged in the V-shaped groove, and the positioning V seat and the locking buckle cooperate to fix the built-in valve assembly; Guide sleeve, which is a stepped hollow cylindrical structure; The guide sleeve is internally provided with a circular through hole and two guide grooves symmetrically arranged about the central axis of the cylindrical structure; The guide sleeve is installed inside the built-in valve assembly; Wire connector, which is arranged on the side of the support frame and connected with the power connection end of the built-in valve assembly; Valve core clamp, one end of which passes through the square slot and is connected with the built-in valve assembly through the guide sleeve; Force sensor, one end of which is connected with the other end of the valve core clamp, and the other end is connected with the central control computer.

2. The electric control damper built-in valve electromagnetic force testing device according to claim 1, characterized by, The support frame includes: Base, which is horizontally arranged; Multiple support shafts, one end of which is fixedly connected with the base; Multiple connecting plates, each of which is provided with a U-shaped groove in the middle and is uniformly arranged on the support shaft parallel to the base; Wherein, the U-shaped groove, the V-shaped groove and the square slot are coaxially arranged and the opening directions are consistent.

3. The solenoid force test apparatus for a built-in valve of an electronically controlled shock absorber according to claim 2, characterized by The base is composed of a rectangular bottom plate and a rectangular boss; The rectangular boss is arranged at the center of the upper surface of the rectangular bottom plate; The four corners of the rectangular bottom plate are provided with threaded holes for fixing the test device on the workbench.

4. The solenoid force test apparatus for a built-in valve of an electronically controlled shock absorber according to claim 3, characterized by The number of support shafts is four, and one end of each of the four support shafts is fixedly connected with the four corners of the rectangular boss; The number of connecting plates is two, which are middle connecting plate and upper connecting plate; The middle connecting plate is arranged at the middle of the support shaft, and the upper connecting plate is arranged at the other end of the support shaft.

5. The solenoid force test apparatus for an electronically controlled shock absorber built-in valve according to claim 1, characterized by The built-in valve assembly includes: Built-in valve body; Solenoid valve core, which is arranged in the built-in valve body and connected with the valve core clamp; Valve bore, which is arranged inside the solenoid valve core end close to the built-in valve body; The solenoid valve core reciprocates in the valve bore; Bakelite paper, which is wrapped around the outer wall of the solenoid valve core.

6. The solenoid force test apparatus for an electronically controlled shock absorber built-in valve according to claim 5, characterized by The guide sleeve is composed of three hollow cylinders with different diameters; The three hollow cylinders are coaxially arranged and sequentially connected from large to small in diameter to form the guide sleeve; The guide sleeve is arranged inside the solenoid valve core end of the built-in valve body; Wherein, the outer diameter of the solenoid valve core wrapped with the bakelite paper matches the inner diameter of the circular through hole.

7. The solenoid force test apparatus for a built-in valve of an electronically controlled shock absorber according to claim 6, characterized by The valve core clamp is arranged in the guide groove, and the valve core clamp is inserted into the solenoid valve core through the guide sleeve.

8. The electromagnetic force testing device for a built-in valve of an electronically controlled shock absorber according to claim 7, characterized by Further including: Flat clamp, which is arranged between the force sensor and the valve core clamp; One end of the flat clamp is provided with a clamping device and connected with the valve core clamp, and the other end is connected with the force sensor.

9. The solenoid force test apparatus for a built-in valve of an electronically controlled shock absorber according to claim 8, characterized by The material of the valve core clamping piece is stainless steel; one end of the valve core clamping piece is a thin piece structure and is connected with the electromagnetic valve core; the other end of the valve core clamping piece is provided with a knurled structure and is connected with the flat piece clamp; and the middle part of the valve core clamping piece is provided with an oval weight-reducing hole.

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