CN211231052U - Hydraulic driving system integrating shunting and anti-skidding functions - Google Patents
Hydraulic driving system integrating shunting and anti-skidding functions Download PDFInfo
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- CN211231052U CN211231052U CN201921988539.7U CN201921988539U CN211231052U CN 211231052 U CN211231052 U CN 211231052U CN 201921988539 U CN201921988539 U CN 201921988539U CN 211231052 U CN211231052 U CN 211231052U
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Abstract
The utility model discloses a hydraulic drive system integrating shunting and anti-skid functions, which comprises a hydraulic oil tank, a hydraulic pump, a drive reversing valve, a shunting anti-skid valve set and a drive motor, wherein an oil suction port of the hydraulic pump is connected with the hydraulic oil tank, and an oil outlet is connected with an oil inlet of the drive reversing valve; an oil return port of the driving reversing valve is connected with a hydraulic oil tank, two oil outlets of the driving reversing valve are respectively connected with two inlets of a shunting antiskid valve bank, the shunting antiskid valve bank comprises a plurality of flow valves, and four groups of oil outlets on the shunting antiskid valve bank are respectively connected with working oil ports of a driving motor; the oil drain ports of the driving motor are connected together and then connected with the hydraulic oil tank. The hydraulic driving system can enable the vehicles driven by hydraulic traveling to reasonably distribute flow and power, and further can be better suitable for various road surface working conditions; while shunting, each motor can be according to tire load and steering angle self-adaptation regulation to each motor's flow and wheel rotational speed, can not cause unusual tire wear of wheel.
Description
Technical Field
The utility model relates to a vehicle drive field, concretely relates to hydraulic drive system of integrated reposition of redundant personnel and anti-skidding function.
Background
At present, on engineering vehicles, a plurality of hydraulic motors are generally adopted to be connected in parallel to drive and walk, under the working condition of uneven road surfaces, tires are not uniformly loaded, or the adhesive force of individual tires on wet and slippery road surfaces is not enough, more pressure oil of a hydraulic pump enters motors corresponding to the tires with small load or small adhesive force, wheels slip, the hydraulic motors are easy to overspeed and damage, meanwhile, most of flow flows to overspeed motors, other hydraulic motors with high load do not have pressure oil drive, and the whole vehicle cannot walk after losing power. In order to solve the problem, some vehicles adopt a fixed flow divider, namely a hydraulic pump is fixedly divided into a plurality of paths of pressure oil which respectively enter each driving motor, the advantages are that the flow distribution is uniform, the motors cannot overspeed, the defects are that the flow of each path is equal all the time, namely the rotating speeds of all the motors and wheels are the same, when the vehicles turn, the turning radius of the inner side tire is smaller than that of the outer side tire, and the rotating speeds of the motors and the wheels are the same and cannot be differentiated, so that the abnormal wear of the tires is caused. In order to solve the above problems, it is necessary to introduce a hydraulic drive system having a flow compensation function, and integrating a component flow and an anti-skid function.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integrated reposition of redundant personnel and non-slip function's hydraulic drive system adopts the reposition of redundant personnel non-slip valves that flow valve that has flow compensation control function constitutes, distributes a plurality of motors with the pressure oil of hydraulic pump to can restrict the maximum flow of every motor and be no longer than the settlement flow, play rational distribution flow and power, prevent the function that the CD-ROM drive motor overspeed damaged.
In order to achieve the above object, the utility model adopts the following technical scheme:
a hydraulic driving system integrating shunting and anti-skid functions comprises a hydraulic oil tank, a hydraulic pump, a shunting anti-skid valve group and a driving motor; an oil suction port of the hydraulic pump is connected with a hydraulic oil tank, and an oil outlet of the hydraulic pump is connected with a shunting antiskid valve bank; the flow dividing and anti-skid valve group comprises a plurality of flow valves, and oil outlets of the flow valves are connected with working oil ports of the driving motor; and an oil drain port of the driving motor is connected with a hydraulic oil tank.
Preferably, the hydraulic control system further comprises a driving reversing valve, the driving reversing valve is arranged between the hydraulic pump and the shunting antiskid valve bank, an oil inlet of the driving reversing valve is connected with an oil outlet of the hydraulic pump, an oil return port of the driving reversing valve is connected with the hydraulic oil tank, and an oil outlet of the driving reversing valve is connected with an inlet of the shunting antiskid valve bank.
Preferably, the drive switching valve is integrated with a relief valve therein, which can limit the pressure of the hydraulic drive system.
Preferably, the shunting antiskid valve group is provided with two inlets which are respectively connected with two oil outlets of the driving reversing valve, four groups of flow valves are arranged in the shunting antiskid valve group, each group of flow valves comprises two flow valves, and the oil outlet of each flow valve is connected with a working oil port of the driving motor.
Due to the structure, the beneficial effects of the utility model reside in that:
1. according to the hydraulic driving system, the flow and power distribution and the anti-skid control of a plurality of driving motors are realized by adopting the flow dividing anti-skid valve group with the flow compensation control function, so that the hydraulic driving system is better suitable for various road surface working conditions and is particularly suitable for special vehicles driven by a plurality of hydraulic motors;
2. according to the hydraulic driving system, the shunting antiskid valve group is adopted, and each motor can adaptively adjust the flow and the wheel rotating speed to each motor according to the tire load and the steering angle while shunting, so that abnormal tire abrasion of the wheel can not be caused;
3. in the hydraulic drive system of this application, reposition of redundant personnel antiskid valves can restrict the maximum flow to on every motor, and when the flow reached the setting value, the flow valve just exported the constant flow to prevent that the driving motor from surpassing the speed and damaging and the wheel loses power.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a hydraulic schematic diagram of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present embodiment provides a hydraulic drive system integrating flow dividing and anti-skid functions, which includes a hydraulic oil tank 1, a hydraulic pump 2, a drive reversing valve 3, a flow dividing anti-skid valve set 4, and a drive motor 5.
The hydraulic pump 2 is a hydraulic element for outputting pressure oil, the energy of an engine or a motor is converted into hydraulic energy, an oil suction port of the hydraulic pump 2 is connected with the hydraulic oil tank 1, and an oil outlet is connected with an oil inlet of the driving reversing valve 3;
the driving reversing valve 3 is a large-flow hydraulic reversing element, the flow direction of hydraulic oil of a working oil port can be changed through reversing, so that the forward and backward movement of a vehicle can be controlled, an overflow valve is integrated in the driving reversing valve 3, and the pressure of the system can be limited. An oil return port of the driving reversing valve 3 is connected with the hydraulic oil tank 1, and an oil outlet of the driving reversing valve 3 is connected with an inlet of the shunting antiskid valve group 4;
the shunting antiskid valve group 4 is provided with two inlets which are respectively connected with two oil outlets of the driving reversing valve 3, and the shunting antiskid valve group 4 is a hydraulic valve group consisting of a plurality of flow valves 6 with flow compensation control functions and has the functions of flow distribution and flow limitation. In this embodiment, four sets of flow valves 6 are provided in the shunting antiskid valve group 4, each set includes two flow valves 6, the oil inlet of each flow valve 6 is communicated with the inlet of the shunting antiskid valve group 4, and the oil outlet is connected with a working oil port of the driving motor 5.
The driving motor 5 is a hydraulic actuator, and can convert hydraulic energy into mechanical energy to drive the vehicle to move. In this embodiment, four driving motors 5 are provided, and oil drain ports of the driving motors 5 are connected together and then connected to the hydraulic oil tank 1.
In this embodiment, each flow valve 6 on the flow dividing antiskid valve group 4 can set a flow rate, and when the flow rate reaches the set flow rate, the flow valve 6 outputs a constant flow rate, so that the flow rate of each driving motor 5 of the system is limited not to exceed the set flow rate, and the effects of reasonably distributing the flow rate and power and protecting the driving motors are achieved.
The working principle of the structure is as follows:
as shown in fig. 1, a hydraulic pump 2 sucks oil from a hydraulic oil tank 1, pressure oil enters an inlet of a drive reversing valve 3 from an oil outlet of the hydraulic pump 2, when the drive reversing valve 3 is in a middle position, a vehicle is in a stop state, and the entered pressure oil of the drive reversing valve 3 directly returns to the hydraulic oil tank 1 through an oil return port of the drive reversing valve 3;
when the driving reversing valve 3 reverses to the left side, pressure oil enters an inlet of the shunting antiskid valve group 4 from a left oil outlet of the driving reversing valve 3, enters a working oil port of the driving motor 5 through a flow valve 6 inside the shunting antiskid valve group 4, drives the vehicle to advance, and the pressure oil coming out of the other working oil port of the driving motor 5 returns to the hydraulic oil tank 1 through the shunting antiskid valve group 4 and an oil return port of the driving reversing valve 3.
When the drive reversing valve 3 is reversed to the right position, the working process is opposite to the process, and the drive motor 5 is reversed to drive the vehicle to move backwards.
The flow valve 6 is a constant flow valve with flow compensation function, when the flow entering each flow valve 6 is smaller than the set flow, the system flow can be adaptively distributed to each driving motor 5 according to the load of each driving motor 5 or the steering angle because each driving motor 5 is in parallel connection; when the flow of a certain driving motor 5 reaches the set flow, the flow valve 6 with the flow compensation function limits the output flow on the set flow, namely, outputs a constant flow, thereby distributing the redundant flow to other driving motors to achieve the aim of shunting and preventing the vehicle from losing power. The set flow of the flow valve 6 is lower than the maximum rotation speed allowed by the driving motor 5, so when a certain tire is suspended in the air or on a wet and slippery road surface, the tire idles, the rotation speed of the driving motor 5 cannot exceed the maximum rotation speed allowed, and further the driving motor 5 is protected from being damaged by overspeed, and the antiskid effect is achieved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an integrated reposition of redundant personnel and anti-skidding function's hydraulic drive system which characterized in that: the hydraulic anti-skid valve set comprises a hydraulic oil tank, a hydraulic pump, a shunt anti-skid valve set and a driving motor; an oil suction port of the hydraulic pump is connected with a hydraulic oil tank, and an oil outlet of the hydraulic pump is connected with a shunting antiskid valve bank; the flow dividing and anti-skid valve group comprises a plurality of flow valves, and oil outlets of the flow valves are connected with working oil ports of the driving motor; and an oil drain port of the driving motor is connected with a hydraulic oil tank.
2. The hydraulic drive system of claim 1, wherein: the hydraulic pump is characterized by further comprising a driving reversing valve, the driving reversing valve is arranged between the hydraulic pump and the shunting antiskid valve bank, an oil inlet of the driving reversing valve is connected with an oil outlet of the hydraulic pump, an oil return port of the driving reversing valve is connected with a hydraulic oil tank, and an oil outlet of the driving reversing valve is connected with an inlet of the shunting antiskid valve bank.
3. The hydraulic drive system of claim 2, wherein: and the drive reversing valve is internally integrated with a relief valve which can limit the pressure of the hydraulic drive system.
4. The hydraulic drive system of claim 2, wherein: the shunting antiskid valve group is provided with two inlets which are respectively connected with two oil outlets of the driving reversing valve, four groups of flow valves are arranged in the shunting antiskid valve group, each group comprises two flow valves, and the oil outlet of each flow valve is connected with a working oil port of the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988539.7U CN211231052U (en) | 2019-11-18 | 2019-11-18 | Hydraulic driving system integrating shunting and anti-skidding functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988539.7U CN211231052U (en) | 2019-11-18 | 2019-11-18 | Hydraulic driving system integrating shunting and anti-skidding functions |
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| CN211231052U true CN211231052U (en) | 2020-08-11 |
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| CN201921988539.7U Active CN211231052U (en) | 2019-11-18 | 2019-11-18 | Hydraulic driving system integrating shunting and anti-skidding functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738341A (en) * | 2022-04-22 | 2022-07-12 | 扬州市职业大学(扬州开放大学) | Walking hydraulic transmission system of hydraulic four-wheel-drive high-ground-clearance wheel type spraying machine |
-
2019
- 2019-11-18 CN CN201921988539.7U patent/CN211231052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738341A (en) * | 2022-04-22 | 2022-07-12 | 扬州市职业大学(扬州开放大学) | Walking hydraulic transmission system of hydraulic four-wheel-drive high-ground-clearance wheel type spraying machine |
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