CN219903974U - Vehicle with a vehicle body having a vehicle body support - Google Patents

Abstract

The utility model discloses a vehicle, comprising: a body and a plurality of wheels; the actuators are in one-to-one correspondence with the wheels, are arranged between the vehicle body and the wheels, and can stretch to change the distance between the vehicle body and the wheels; the control pumps are in one-to-one correspondence with the actuators, are communicated with the actuators and supply control media to control the expansion and contraction of the actuators. According to the utility model, the control pump is communicated with the actuators in one-to-one correspondence, so that the response speed is improved.

Description

Vehicle with a vehicle body having a vehicle body support

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle.

Background

In the related art, a vehicle body can be lifted and lowered relative to wheels, and the vehicle generally uses one hydraulic pump to drive four piston rods to stretch and retract so as to drive the lifting and lowering of the vehicle body. But the solution of driving four piston rods simultaneously by a single hydraulic pump is not fast responsive.

Disclosure of Invention

In view of this, the present utility model aims to propose a vehicle with an improved response speed.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a vehicle, comprising: a body and a plurality of wheels; the actuators are in one-to-one correspondence with the wheels, are arranged between the vehicle body and the wheels, and can stretch and retract to change the distance between the vehicle body and the wheels; the control pumps are in one-to-one correspondence with the actuators, are communicated with the actuators and supply control media to control the expansion and contraction of the actuators.

According to the vehicle provided by the embodiment of the utility model, the control pump is communicated with the actuators in one-to-one correspondence, so that the response speed is improved.

In addition, the vehicle according to the above embodiment of the utility model may have the following additional technical features:

according to some embodiments of the utility model, the actuator includes: the shell assembly is provided with a first flow passage and a second flow passage, and the first flow passage and the second flow passage are respectively communicated with the control pump; the piston assembly is partially arranged in the shell assembly, the piston assembly and the shell assembly jointly define a first movable cavity and a second movable cavity, the first flow channel is communicated with the first movable cavity, and the second flow channel is communicated with the second movable cavity so as to drive the piston assembly to reciprocate.

According to some embodiments of the utility model, the piston assembly comprises: a piston rod, the piston rod portion being disposed within the housing assembly; the piston main valve is arranged on the piston rod, the first movable cavity and the second movable cavity are positioned on two opposite sides of the piston main valve, a communication channel is arranged on the piston main valve, and the communication channel is communicated with the first movable cavity and the second movable cavity; the elastic blocking piece is arranged in the communication channel so that the pressure difference between the first movable cavity and the second movable cavity is larger than or equal to a set value to open the communication channel.

According to some embodiments of the utility model, the first flow channel and the second flow channel are provided at the same end of the housing assembly.

According to some embodiments of the utility model, the housing assembly comprises: the first flow passage and the second flow passage are arranged on the shell; the working cylinder is arranged in the shell, the working cylinder and the shell jointly define an internal flow channel, one end of the internal flow channel is communicated with the first flow channel, and the other end of the internal flow channel is communicated with the first movable cavity; the locating piece is arranged at one end, far away from the first flow channel, of the shell, and the locating piece abuts against the working cylinder to locate the working cylinder.

According to some embodiments of the utility model, a first through-stop valve is arranged in the first flow passage, and the first through-stop valve controls the on-off of the first flow passage; and a second stop valve is arranged in the second flow passage and controls the on-off of the second flow passage.

According to some embodiments of the utility model, the vehicle further comprises: the first control device is arranged between the first flow channel and the control pump so as to control the on-off of the first flow channel and the control pump, and the second control device is arranged between the second flow channel and the control pump so as to control the on-off of the second flow channel and the control pump.

According to some embodiments of the utility model, the first control device comprises: the first base is provided with a first channel; a first check valve assembly disposed within the first passage, the first check valve assembly having a first opening and a second opening, the first opening to the second opening flowing in a direction of flow, the control medium freely flowing, the second opening to the first opening flowing in a direction of flow, the first check valve assembly controlling the flow of the control medium; and, the second control device includes: the second base is provided with a second channel; the second one-way valve assembly is arranged in the second channel and is provided with a third opening and a fourth opening, the flow direction of the third opening to the flow direction of the fourth opening is the direction in which the control medium freely flows, the flow direction of the fourth opening to the flow direction of the third opening is the direction in which the second one-way valve assembly controls the flow of the control medium.

According to some embodiments of the utility model, the first base is integrally formed with the second base.

According to some embodiments of the utility model, a first pressure compensation device is arranged on the first base, and the first pressure compensation device is communicated with the first channel; the second base is provided with a second pressure compensation device, and the second pressure compensation device is communicated with the second channel.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic illustration of a vehicle in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic view of an actuator according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a portion of the structure of an actuator according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 2 at I;

fig. 5 is a schematic structural diagram of a first control device and a second control device according to an embodiment of the present utility model.

Reference numerals:

100. a vehicle;

10. an actuator;

11. a housing assembly; 111. a first flow passage; 1111. a first stop valve; 1112. a first exhaust valve; 112. a second flow passage; 1121. a second stop valve; 1122. a second exhaust valve; 113. a housing; 114. a working cylinder; 115. a positioning piece;

12. a piston assembly; 121. a first movable chamber; 122. a second movable chamber; 123. a piston rod; 124. a piston main valve; 1241. a communication passage; 125. an elastic blocking piece; 20. controlling the pump;

30. a first control device;

311. a first pressure compensation device; 312. a first channel;

32. a first one-way valve assembly; 321. a first opening; 322. a second opening; 323. a first unidirectional body; 324. a first valve plate; 325. a first spring; 326. a first electrically controlled valve;

40. a second control device;

411. a second pressure compensation device; 412. a second channel;

42. a second one-way valve assembly; 421. a third opening; 422. a fourth opening; 423. a second unidirectional body; 424. a second valve plate; 425. a second spring; 426. and a second electrically controlled valve.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The present utility model will be described in detail below with reference to fig. 1 to 5 in conjunction with the embodiments.

As shown in fig. 1, a vehicle 100 according to an embodiment of the present utility model includes: a vehicle body, wheels, actuators 10 and control pumps 20.

The number of the wheels is multiple, the number of the actuators 10 is multiple, the actuators 10 are in one-to-one correspondence with the wheels, the actuators 10 are arranged between the vehicle body and the wheels, and the actuators 10 can stretch and retract to change the distance between the vehicle body and the wheels.

That is, the actuator 10 drives the vehicle body to lift, and the actuator 10 corresponds to the wheel, improving the controllability of the lift.

The control pumps 20 are in one-to-one correspondence with the actuators 10, and the control pumps 20 communicate with the actuators 10 and supply control medium to control expansion and contraction of the actuators 10.

Wherein a single control pump 20 corresponds to a single actuator 10, each actuator 10 is operable to reduce the parameter requirements for the control pump 20, and to increase the response speed compared to the same control pump 20 controlling four piston rods 123.

According to the vehicle 100 of the embodiment of the utility model, the plurality of control pumps 20 are correspondingly communicated with the plurality of actuators 10, so that each actuator 10 can work independently, and meanwhile, the actuators 10 can respond quickly, and quick response is realized under severe road conditions.

In some embodiments, the control medium is hydraulic oil.

As shown in fig. 2, according to some embodiments of the utility model, an actuator 10 includes: a housing assembly 11, a piston assembly 12.

The housing assembly 11 is provided with a first flow passage 111 and a second flow passage 112, and the first flow passage 111 and the second flow passage 112 are respectively communicated with the control pump 20.

The piston assembly 12 is partially disposed in the housing assembly 11, and the piston assembly 12 and the housing assembly 11 together define a first movable chamber 121 and a second movable chamber 122, the first flow passage 111 communicates with the first movable chamber 121, and the second flow passage 112 communicates with the second movable chamber 122 to drive the piston assembly 12 to reciprocate. By arranging the first flow passage 111 and the second flow passage 112, the piston assembly 12 is driven to reciprocate back and forth, so that the actuator 10 actively stretches and forth, and compared with a piston rod moving in one direction in the prior art, the piston assembly 12 reciprocates in the prior art, and the response speed is further improved due to the fact that the vehicle body passively descends.

As shown in fig. 2, 4, according to some embodiments of the utility model, the piston assembly 12 includes: a piston rod 123, a piston main valve 124 and an elastic stopper 125.

The piston rod 123 is partially disposed within the housing assembly 11.

The piston main valve 124 is disposed on the piston rod 123, the first movable chamber 121 and the second movable chamber 122 are disposed on opposite sides of the piston main valve 124, and a communication channel 1241 is disposed on the piston main valve 124, and the communication channel 1241 communicates the first movable chamber 121 and the second movable chamber 122.

Wherein the first movable chamber 121 and the second movable chamber 122 are located at opposite sides of the main piston valve 124, and a pressure difference between the first movable chamber 121 and the second movable chamber 122 drives the main piston valve 124 to move.

The elastic blocking member 125 is disposed in the communication passage 1241, so that a pressure difference between the first movable chamber 121 and the second movable chamber 122 is greater than or equal to a set value to open the communication passage 1241. Through setting up elastic plugging piece 125 on communication channel 1241, automatic pressure release avoids too big pressure differential damage device, improves the security.

Specifically, the elastic plug 125 includes a plurality of elastic pieces, and the pre-opening pressure difference can be adjusted by changing the number and thickness of the elastic pieces.

As shown in fig. 2, according to some embodiments of the present utility model, the first flow channel 111 and the second flow channel 112 are provided at the same end of the housing assembly 11. By locating the first and second flow passages 111, 112 at the same end of the housing assembly 11, connection of the actuator 10 to external piping is facilitated.

As shown in fig. 2, according to some embodiments of the utility model, the housing assembly 11 includes: housing 113, cylinder 114, and positioning member 115.

The first flow channel 111 and the second flow channel 112 are provided in the housing 113.

The working cylinder 114 is disposed in the housing 113, and the working cylinder 114 and the housing 113 together define an internal flow passage, one end of which is communicated with the first flow passage 111, and the other end of which is communicated with the first movable chamber 121.

The positioning element 115 is disposed at an end of the housing 113 away from the first flow channel 111, and the positioning element 115 abuts against the working cylinder 114 to position the working cylinder 114. By providing the housing 113 and the cylinder 114, the first flow passage 111 and the second flow passage 112 can be formed easily, and the manufacturing cost can be reduced.

Wherein the positioning member 115 is connected to the housing 113, and the positioning member 115 mounted on the housing 113 fixes the cylinder 114 in the housing 113.

As shown in fig. 2 and 3, in some embodiments, a first exhaust valve 1112 and a second exhaust valve 1122 are disposed on the housing 113, where the first exhaust valve 1112 is in communication with the first flow channel 111, the first exhaust valve 1112 is configured to exhaust gas in the first flow channel 111, and the second exhaust valve 1122 is configured to exhaust gas in the second flow channel 112, so as to reduce internal gas.

As shown in fig. 2 and 3, in other embodiments, a first exhaust valve 1112 is disposed on the first base, the first exhaust valve 1112 is in communication with the first channel 312, and a second exhaust valve 1122 is disposed on the second base, the second exhaust valve 1122 is in communication with the second channel 412.

Specifically, the first exhaust valve 1112 and the second exhaust valve 1122 are each configured as normally closed valves that are opened during assembly or system integration of the actuator 10 to exhaust internal gases.

As shown in fig. 2 and 3, according to some embodiments of the present utility model, a first through-stop valve 1111 is disposed in the first flow channel 111, and the first through-stop valve 1111 controls the on-off of the first flow channel 111. A second stop valve 1121 is provided in the second flow passage 112, and the second stop valve 1121 controls the on/off of the second flow passage 112. The first and second stop valves 1111 and 1121 are provided to control the on-off of the first and second flow passages 111 and 112, which is convenient for performance test.

Specifically, the first through-stop valve 1111 is screwed to the first flow passage 111, the second through-stop valve 1121 is screwed to the second flow passage 112, and rotating the first through-stop valve 1111 may cause the first through-stop valve 1111 to move, and rotating the second through-stop valve 1121 may cause the second through-stop valve 1121 to move. Of course, the connection manner of the first through-stop valve 1111 and the first flow channel 111 may be other, and the connection manner of the second through-stop valve 1121 and the second flow channel 112 may be other, which will not be described herein.

As shown in fig. 1 and 5, according to some embodiments of the present utility model, the vehicle 100 further includes: the first control device 30 and the second control device 40, the first control device 30 is arranged between the first flow channel 111 and the control pump 20 to control the on-off of the first flow channel 111 and the control pump 20, and the second control device 40 is arranged between the second flow channel 112 and the control pump 20 to control the on-off of the second flow channel 112 and the control pump 20. By providing the first control device 30 and the second control device 40, the control capability of the actuator 10 is improved.

As shown in fig. 1 and 5, according to some embodiments of the present utility model, the first control device 30 includes: a first base, a first one-way valve assembly 32.

The first base is provided with a first channel 312.

The first check valve assembly 32 is disposed in the first channel 312, the first check valve assembly 32 has a first opening 321 and a second opening 322, the flow direction from the first opening 321 to the second opening 322 controls the free flow of the medium, the flow direction from the second opening 322 to the first opening 321 controls the flow of the control medium, and the first check valve assembly 32 controls the flow of the control medium.

For example, the control medium is hydraulic oil, which may freely flow from the first opening 321 to the second opening 322, but hydraulic oil may not freely flow from the second opening 322 to the first opening 321, and the first check valve assembly 32 may cause hydraulic oil to flow from the second opening 322 to the first opening 321, or may cause hydraulic oil to not flow from the second opening 322 to the first opening 321.

As shown in fig. 1 and 5, specifically, the first check valve assembly 32 includes: a first unidirectional body 323, a first valve plate 324, a first spring 325, and a first electrically controlled valve 326.

The first valve plate 324 and the first spring 325 are disposed in the first unidirectional main body 323, the second opening 322 is disposed on the first unidirectional main body 323, and a through hole corresponding to the second opening 322 is disposed on the first valve plate 324.

The first electrically controlled valve 326 is disposed on the first unidirectional main body 323, the first electrically controlled valve 326 corresponds to a through hole on the first valve plate 324, and the first electrically controlled valve 326 controls the flow of the control medium. For example, the first electrically controlled valve 326 may cause hydraulic oil to flow from the second opening 322 to the first opening 321, or may cause hydraulic oil to not flow from the second opening 322 to the first opening 321.

Specifically, the first electrically controlled valve 326 is configured as an electrically controlled regulator valve, and functions to regulate damping.

As shown in fig. 1 and 5, the second control device 40 includes: a second base and a second one-way valve assembly 42.

The second base is provided with a second channel 412.

The second check valve assembly 42 is disposed in the second channel 412, the second check valve assembly 42 has a third opening 421 and a fourth opening 422, the flow direction of the third opening 421 to the fourth opening 422 controls the free flow of the medium, the flow direction of the fourth opening 422 to the third opening 421 controls the flow of the control medium, and the second check valve assembly 42 controls the flow of the control medium.

For example, the control medium is hydraulic oil, which may freely flow from the third opening 421 to the fourth opening 422, but hydraulic oil may not freely flow from the fourth opening 422 to the third opening 421, and the second check valve assembly 42 may cause hydraulic oil to flow from the fourth opening 422 to the third opening 421, or may cause hydraulic oil to not flow from the fourth opening 422 to the third opening 421.

Specifically, the second check valve assembly 42 includes: second unidirectional body 423, second valve plate 424, second spring 425, and second electrically controlled valve 426.

The second valve plate 424 and the second spring 425 are disposed in the second unidirectional main body 423, the fourth opening 422 is disposed on the second unidirectional main body 423, and a through hole corresponding to the fourth opening 422 is disposed on the second valve plate 424.

Second electrically controlled valve 426 is disposed on second unidirectional main body 423, second electrically controlled valve 426 corresponds to a through hole on second valve plate 424, and second electrically controlled valve 426 controls the flow of control medium. For example, the second electric control valve 426 may cause hydraulic oil to flow from the fourth opening 422 to the third opening 421, or may cause hydraulic oil to not flow from the fourth opening 422 to the third opening 421.

Specifically, second electrically controlled valve 426 is configured as an electrically controlled regulator valve, which functions to regulate damping.

As shown in fig. 1 and 5, according to some embodiments of the utility model, the first base and the second base are integrally formed. Through setting up first base and second base integrated into one piece, reduce spare part quantity, convenient equipment.

As shown in fig. 1 and 5, according to some embodiments of the present utility model, a first pressure compensation device 311 is disposed on the first base, and the first pressure compensation device 311 is in communication with a first channel 312. The volume change of both the first movable chamber 121 and the second movable chamber 122 is achieved by providing the first pressure compensating means 311 to change the internal pressure.

The second base is provided with a second pressure compensation device 411, and the second pressure compensation device 411 is communicated with a second channel 412. The volume change of both the first movable chamber 121 and the second movable chamber 122 is achieved by changing the internal pressure by providing the second pressure compensating means 411.

In some embodiments, the actuator 10 is in fluid communication with the first control device 30 and the second control device 40, and the control pump 20 is in fluid communication with the first control device 30 and the second control device 40.

Hereinafter, a vehicle 100 according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings.

The vehicle 100 includes: a vehicle body, wheels, an actuator 10, a control pump 20, a first control device 30, and a second control device 40.

The control pump 20 can supply oil bidirectionally. The first control device 30 includes: the first base and the first check valve component 32, the first base is provided with a first pressure compensating device 311 and a first channel 312, and the first check valve component 32 can control damping. The second control device 40 includes: the second base and the second check valve assembly 42 are provided with a second pressure compensation device 411 and a second channel 412, and the second check valve assembly 42 can control damping. The first base and the second base are integrally formed.

The actuator 10 includes: a housing assembly 11 and a piston assembly 12.

The housing assembly 11 includes: housing 113, cylinder 114, and positioning member 115. The housing 113 is provided with a first flow passage 111 and a second flow passage 112, a first through-stop valve 1111 is provided in the first flow passage 111, and a second through-stop valve 1121 is provided in the second flow passage 112.

The piston assembly 12 includes: the piston rod 123, the piston main valve 124 and the elastic sealing member 125 are arranged on the piston main valve 124, the communication channel 1241 is arranged on the piston main valve 124, and the elastic sealing member 125 is arranged on the communication channel 1241.

The utility model has the advantages that: 1) The electric control hydraulic pump can build pressure in two directions, so that the most advanced function of quickly realizing wheel lifting in the industry is realized; 2) The electric control hydraulic pump, the damping energy storage unit and the actuator are respectively arranged, so that maintenance and replacement cost can be reduced; 3) The system has simple assembly process, high feasibility and low manufacturing cost; 4) The damping energy storage unit is added as a connecting device between the electric control hydraulic pump and the actuator, and can be installed in an easy-to-arrange area of the chassis, so that the arrangement is more convenient; 5) The product scheme has high platforability and reduces the project development cost; 6) The pressure compensation device is external, so that the assembly and the integration are convenient; 7) The sensitivity of the pressure compensation device to temperature is reduced, and the reliability of the system is improved; 8) The pressure compensation device is changed from custom development to the selection of the existing products in the market, so that the system cost is reduced; 9) The space size requirement of the actuator is reduced, and the technical popularization is easier; 10 The inside of the actuator is designed as a normally closed valve, so that the response time of the system is improved; 11 The actuator can be independently tested, so that the test cost is reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A vehicle (100), characterized by comprising:

a body and a plurality of wheels;

the actuators (10) are in one-to-one correspondence with the wheels, the actuators (10) are arranged between the vehicle body and the wheels, and the actuators (10) can stretch and retract to change the distance between the vehicle body and the wheels;

and the control pumps (20) are in one-to-one correspondence with the actuators (10), and the control pumps (20) are communicated with the actuators (10) and supply control media to control the expansion and contraction of the actuators (10).

2. The vehicle (100) according to claim 1, wherein the actuator (10) includes:

the device comprises a shell assembly (11), wherein a first flow passage (111) and a second flow passage (112) are arranged on the shell assembly (11), and the first flow passage (111) and the second flow passage (112) are respectively communicated with the control pump (20);

the piston assembly (12), piston assembly (12) part is located in casing subassembly (11), piston assembly (12) with casing subassembly (11) are limited first movable chamber (121) and second movable chamber (122) jointly, first runner (111) intercommunication first movable chamber (121), second runner (112) intercommunication second movable chamber (122) are in order to drive piston assembly (12) reciprocating motion.

3. The vehicle (100) of claim 2, wherein the piston assembly (12) includes:

-a piston rod (123), the piston rod (123) being partially arranged within the housing assembly (11);

the piston main valve (124), the piston main valve (124) is arranged on the piston rod (123), the first movable cavity (121) and the second movable cavity (122) are positioned on two opposite sides of the piston main valve (124), a communication channel (1241) is arranged on the piston main valve (124), and the communication channel (1241) is communicated with the first movable cavity (121) and the second movable cavity (122);

the elastic blocking piece (125) is arranged on the communication channel (1241) so that the pressure difference between the first movable cavity (121) and the second movable cavity (122) is larger than or equal to a set value, and the communication channel (1241) is opened.

4. The vehicle (100) of claim 2, wherein the first flow passage (111) and the second flow passage (112) are provided at the same end of the housing assembly (11).

5. The vehicle (100) of claim 4, wherein the housing assembly (11) includes:

a housing (113), wherein the first flow passage (111) and the second flow passage (112) are provided in the housing (113);

the working cylinder (114), the working cylinder (114) is arranged in the shell (113), the working cylinder (114) and the shell (113) jointly define an internal flow passage, one end of the internal flow passage is communicated with the first flow passage (111), and the other end of the internal flow passage is communicated with the first movable cavity (121);

the positioning piece (115) is arranged at one end of the shell (113) far away from the first runner (111), and the positioning piece (115) is abutted against the working cylinder (114) so as to position the working cylinder (114).

6. The vehicle (100) according to claim 5, wherein a first through-stop valve (1111) is provided in the first flow passage (111), and the first through-stop valve (1111) controls on-off of the first flow passage (111); a second stop valve (1121) is arranged in the second flow passage (112), and the second stop valve (1121) controls the on-off of the second flow passage (112).

7. The vehicle (100) according to any one of claims 2 to 6, characterized by further comprising: the control system comprises a first control device (30) and a second control device (40), wherein the first control device (30) is arranged between the first runner (111) and the control pump (20) so as to control the on-off of the first runner (111) and the control pump (20), and the second control device (40) is arranged between the second runner (112) and the control pump (20) so as to control the on-off of the second runner (112) and the control pump (20).

8. The vehicle (100) according to claim 7, characterized in that the first control device (30) includes:

a first base provided with a first channel (312);

a first check valve assembly (32), wherein the first check valve assembly (32) is arranged in the first channel (312), the first check valve assembly (32) is provided with a first opening (321) and a second opening (322), the flow direction of the first opening (321) to the second opening (322) is upward, the control medium freely flows, the flow direction of the second opening (322) to the first opening (321) is upward, and the first check valve assembly (32) controls the flow of the control medium;

and, the second control device (40) includes:

a second base provided with a second channel (412);

the second check valve assembly (42), second check valve assembly (42) are located in second passageway (412), second check valve assembly (42) have third opening (421) and fourth opening (422), third opening (421) to in the flow direction of fourth opening (422), control medium free flow, fourth opening (422) to in the flow direction of third opening (421), second check valve assembly (42) control the flow of control medium.

9. The vehicle (100) of claim 8, wherein the first base is integrally formed with the second base.

10. The vehicle (100) according to claim 8, characterized in that a first pressure compensation device (311) is provided on the first base, the first pressure compensation device (311) being in communication with the first passage (312); the second base is provided with a second pressure compensation device (411), and the second pressure compensation device (411) is communicated with a second channel (412).