CN218325552U

CN218325552U - Novel road surface cleaning system's valve unit

Info

Publication number: CN218325552U
Application number: CN202221722373.6U
Authority: CN
Inventors: 许林
Original assignee: Yuethai Hydraulic Technology Shanghai Co ltd
Current assignee: Yuethai Hydraulic Technology Shanghai Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-01-17
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses a novel road surface cleaning system's valve unit, including the valve block, the internally mounted of valve block has check valve, first overflow valve, logic valve, second overflow valve, first tribit four-way solenoid valve, second tribit four-way solenoid valve, first damping hole, second damping hole, third damping hole, fourth damping hole, fifth damping hole. The utility model has compact structure, the first one-way motor works before the second one-way motor, which ensures smooth feeding and material throwing, avoids the problem of blockage caused by untimely material throwing, prolongs the service life of the motor, and reduces the maintenance cost and the use cost of the whole machine; the use of the check valve and the overflow valve reduces the failure frequency of the motor and the maintenance cost and the use cost of the whole machine; the use of the first damping hole, the second damping hole, the third damping hole, the fourth damping hole, the fifth damping hole and the overflow valve reduces the use cost of the whole machine.

Description

Novel road surface cleaning system's valve unit

Technical Field

The utility model relates to a control valve technical field especially relates to a novel road surface cleaning system's valve unit.

Background

1, when controlling the sweeping tools to act in the vertical direction and the horizontal direction, the flow of hydraulic oil of the system is larger, so that the action speed is too high, the sweeping tools are difficult to control, and vibration is easy to generate; 2. the motor is lack of safety protection, and the motor damage rate is high; the speed of the cleaning tool is not considered, and the vibration phenomenon often occurs. In order to solve the problems, a control valve group of a novel road surface cleaning system is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel road surface cleaning system's valve control group.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel road surface cleaning system's valve unit, includes the valve block, the internally mounted of valve block has check valve, first overflow valve, logic valve, second overflow valve, first tribit four-way solenoid valve, second tribit four-way solenoid valve, first damping hole, second damping hole, third damping hole, fourth damping hole, fifth damping hole, the check valve is connected with port MA, first port A, second port A, first port B, second port M, first port C, first overflow valve and first port B, second port M, first port C, port T, the logic valve is connected with first port M, second port C, port T, the second overflow valve is connected with first port M, port T, first tribit four-way solenoid valve and first port M, second damping hole, third damping hole, second tribit four-way solenoid valve is connected, second four-way solenoid valve and fourth damping hole, fifth damping hole, port T, first damping hole and third damping hole, second tribit four-way solenoid valve and third damping hole, third damping hole and fourth damping hole A, third damping hole and fourth damping hole, fourth damping hole and fourth damping hole A, third damping hole and fourth damping hole are connected.

Preferably, a bidirectional motor is connected between the fourth port a and the third port B, a piston cylinder is connected between the third port a and the second port B, a first one-way motor is connected between the second port a and the first port B, a second one-way motor is connected between the first port C and the second port C, and the port T is connected with a hydraulic oil tank.

Preferably, the port T, the second port C, the first port C, the second port M, the first port B, the second port a, the first port a, the port MA, the first port M, the third port a, the second port B, the fourth port a, and the third port B are all disposed on a surface of the valve block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, compact structure, the check valve can realize reverse oil supplementation, prevent motor idle running, has the effect of protection motor, and first overflow valve can prevent that pressure from suddenly being too high, plays safe pressure release, the effect of protection motor, has reduced the fault frequency of motor, has guaranteed the life of accessory, reduces cost of maintenance; the second damping hole, the third damping hole, the fourth damping hole and the fifth damping hole ensure the control capability of accessories (cleaning tools).

Drawings

Fig. 1 is a system diagram of a control valve set of the novel road surface cleaning system provided by the utility model.

In the figure: the hydraulic control valve comprises a valve block 1, a check valve 2, a first overflow valve 3, a logic valve 4, a second overflow valve 5, a first three-position four-way solenoid valve 61, a second three-position four-way solenoid valve 62, a first damping hole 71, a second damping hole 72, a third damping hole 73, a fourth damping hole 74, a fifth damping hole 75, a second port 81A, a third port 82A, a fourth port 83A, a first port 84A, a first port 91B, a second port 92B, a third port 93B, a first port 101C, a second port 102C, a first port 111M, a port 112 MA, a second port 113M, a two-way motor 12, a port 13T, a first one-way motor 14, a second one-way motor 15, a hydraulic oil tank 16 and a piston cylinder 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, a control valve group of a novel road surface cleaning system includes a valve block 1, a check valve 2, a first overflow valve 3, a logic valve 4, a second overflow valve 5, a first three-position four-way solenoid valve 61, a second three-position four-way solenoid valve 62, a first orifice 71, a second orifice 72, a third orifice 73, a fourth orifice 74 and a fifth orifice 75 are installed inside the valve block 1, the check valve 2 is connected with a port MA112, a first port a84, a second port a81, a first port B91, a second port M113 and a first port C101, the first overflow valve 3 is connected with a first port B91, a second port M113, a first port C101 and a port T13, the logic valve 4 is connected with a first port M111, a second port C102 and a port T13, the second overflow valve 5 is connected with a first port M111 and a port T13, the first four-way solenoid valve 61 is connected with a first port M111, a second orifice 72, a third orifice 73, a second three-position four-way solenoid valve 62, a third orifice 74, a fourth orifice 71, a fourth orifice 75, a fourth orifice 71, a fourth orifice 75, a orifice 93 and a fourth orifice 75, a fourth orifice 93 and a damping orifice 75, a damping orifice 93 and a damping orifice 93.

A bidirectional motor 12 is connected between the fourth port a83 and the third port B93, a piston cylinder 17 is connected between the third port a82 and the second port B92, a first unidirectional motor 14 is connected between the second port a81 and the first port B91, a second unidirectional motor 15 is connected between the first port C101 and the second port C102, and a hydraulic oil tank 16 is connected to the port T13.

The port T13, the second port C102, the first port C101, the second port M113, the first port B91, the second port a81, the first port a84, the port MA112, the first port M111, the third port a82, the second port B92, the fourth port a83, and the third port B93 are all provided on the surface of the valve block 1.

The check valve 2, the first overflow valve 3, the logic valve 4, the second overflow valve 5, the first three-position four-way solenoid valve 61, the second three-position four-way solenoid valve 62, the first damping hole 71, the second damping hole 72, the third damping hole 73, the fourth damping hole 74 and the fifth damping hole 75 are integrated in one valve block 1, so that the structure is more compact; oil provided by the hydraulic pump enters the valve group from the first port A84, sequentially drives the first one-way motor 14 connected from the second port A81 to the first port B91 to operate first, and the hydraulic oil drives the second one-way motor 15 to work subsequently from the first port B91 to the first port C101; when the second port A81 is insufficient to enter the first one-way motor 14, the one-way valve 2 can supply oil to the second port A81 to prevent the first one-way motor 14 from idling and damaging the first one-way motor 14; the first overflow valve 3 is depressurized, so that the first one-way motor 14 can be prevented from being suppressed at the first port B91 due to sudden stop or pause of the second one-way motor 15, and the first one-way motor 14 is damaged due to blade impact; the hydraulic oil flowing out of the second port C102 is divided into two paths, one path is connected to the logic valve 4, the pressure of the hydraulic oil reaches the opening pressure of the logic valve 4, when the oil of the motor flows to the first damping hole 71 and the logic valve 4, because the pressure difference exists before and after the first damping hole 71, the pressure difference can overcome the spring force of the logic valve 4, the logic valve 4 is opened, and the oil of the logic valve 4 directly returns to the hydraulic oil tank 16; when the first three-position four-way solenoid valve 61 (the solenoid valve is electrified to control the cleaning tool to extend and retract) or the second three-position four-way solenoid valve 62 (the cleaning tool is controlled to move transversely and at the moment, the cleaning tool is in an extending working state) works, the pressure difference of the first damping hole 71 is reduced, the pressure difference is not enough to overcome the spring force of the logic valve 4, the logic valve 4 is closed, and the pressure of oil flowing from the first damping hole 71 to the first three-position four-way solenoid valve 61 and the second three-position four-way solenoid valve 62 is enough to enable the piston cylinder 17 and the two-way motor 12 to work; the second overflow valve 5 plays a role in pressure relief protection; the second orifice 72, third orifice 73, fourth orifice 74, and fifth orifice 75 restrict flow, thereby controlling the extension and retraction speeds of the piston cylinder 17 (sweeper tool), the rotational speed of the bi-directional motor 12 (sweeper tool lateral movement speed); when the oil quantity of the oil port A84 is suddenly insufficient, the check valve 2 plays a role in reverse oil supplement; similarly, the movement of the accessory in the horizontal and vertical directions does not need large pressure, and the second overflow valve 5 plays a role in regulating pressure and protecting the motor; hydraulic oil enters the first three-position four-way electromagnetic valve 61, the a end or the b end of the first three-position four-way electromagnetic valve 61 is electrified, so that the vertical movement of the accessory can be controlled, the accessory can reach a proper distance from the ground, and the second damping hole 72 or the third damping hole 73 is selected, so that the vertical movement speed of the accessory is reasonable; after the vertical direction adjustment is completed, the first three-position four-way solenoid valve 61 is powered off, the second three-position four-way solenoid valve 62 is connected with the two-way motor 12, the end a of the second three-position four-way solenoid valve 62 is powered on, the two-way motor 12 rotates forwards, the end b of the second three-position four-way solenoid valve is powered on, the two-way motor 12 rotates backwards, the accessory moves in the horizontal direction, the horizontal cleaning area is covered, and the proper third damping hole 73 or the proper fourth damping hole 74 is selected, so that the accessory moves at a reasonable speed in the horizontal direction.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A control valve group of a novel road surface cleaning system comprises a valve block (1) and is characterized in that a check valve (2), a first overflow valve (3), a logic valve (4), a second overflow valve (5), a first three-position four-way solenoid valve (61), a second three-position four-way solenoid valve (62), a first damping hole (71), a second damping hole (72), a third damping hole (73), a fourth damping hole (74) and a fifth damping hole (75) are arranged in the valve block (1), the check valve (2) is connected with a port MA (112), a first port A (84), a second port A (81), a first port B (91), a second port M (113) and a first port C (101), a port T (13), the logic valve (4) is connected with the first port B (91), the second port M (113), the first port C (101) and the port T (13), the logic valve (4) is connected with the first port M (111), the second port C (102) and the third damping hole (61), the third damping hole (13), the second three-position four-way solenoid valve (62) is connected with a fourth damping hole (74), a fifth damping hole (75) and a port T (13), the first damping hole (71) is connected with a first port M (111) and a second port C (102), the second damping hole (72) is connected with a third port A (82), the third damping hole (73) is connected with a second port B (92), the fourth damping hole (74) is connected with a fourth port A (83), and the fifth damping hole (75) is connected with a third port B (93).

2. The control valve group of the novel road surface sweeping system according to claim 1, wherein a bidirectional motor (12) is connected between the fourth port A (83) and the third port B (93), a piston cylinder (17) is connected between the third port A (82) and the second port B (92), a first one-way motor (14) is connected between the second port A (81) and the first port B (91), a second one-way motor (15) is connected between the first port C (101) and the second port C (102), and the hydraulic oil tank (16) is connected to the port T (13).

3. The valve group of the novel road surface sweeping system according to claim 1, wherein the port T (13), the second port C (102), the first port C (101), the second port M (113), the first port B (91), the second port A (81), the first port A (84), the port MA (112), the first port M (111), the third port A (82), the second port B (92), the fourth port A (83) and the third port B (93) are all arranged on the surface of the valve block (1).