CN210599614U - Control system of air suction prevention oil supplementing walking hydraulic motor - Google Patents
Control system of air suction prevention oil supplementing walking hydraulic motor Download PDFInfo
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- CN210599614U CN210599614U CN201921088868.6U CN201921088868U CN210599614U CN 210599614 U CN210599614 U CN 210599614U CN 201921088868 U CN201921088868 U CN 201921088868U CN 210599614 U CN210599614 U CN 210599614U
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- 230000001502 supplementing effect Effects 0.000 title claims abstract description 10
- 230000002265 prevention Effects 0.000 title claims description 7
- 238000013016 damping Methods 0.000 claims abstract description 21
- 239000013589 supplement Substances 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 53
- 238000010586 diagram Methods 0.000 description 3
- 230000009469 supplementation Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a prevent inhaling sky oil supplementing walking hydraulic motor control system, include: the hydraulic control system comprises an oil tank, a hydraulic pump, an electromagnetic directional valve, a first motor, a second motor, a first one-way valve, a second one-way valve and a back pressure device; the electromagnetic reversing valve is provided with a main oil inlet, a main oil return port, a working oil inlet and a working oil return port; increase certain backpressure at the oil inlet oil circuit of first check valve through damping and second check valve, can strengthen the benefit oily effect, reduce two motor differential of nonlinear line walking and cause inhale sky abnormal sound and motor wearing and tearing. Establish the backpressure through the parallelly connected combined action of damping and second check valve, can solve on the one hand and lead to the backpressure too high when flow is big with the damping, the problem that the energy consumption is high, on the other hand solves and only leads to the system to have when stopping the action with the check valve and remain the backpressure in the pipeline, influences the problem of system performance and stability. And a two-position four-way electromagnetic reversing valve is eliminated, so that the system cost can be reduced.
Description
Technical Field
The utility model relates to a cut fork power supply control system, concretely relates to prevent inhaling sky oil supplementing walking hydraulic motor control system.
Background
The driving mode of the walking hydraulic motor is simple in control and stable and reliable in performance, and is widely applied to a walking system of a movable working device, but when the hydraulic motor is used as a front-driving non-linear route (such as turning), the phenomenon of air suction can occur, abnormal sound is accompanied, and the motor can be damaged in an acceleration mode when the hydraulic motor is in the road condition for a long time.
The prior art, as patent CN205173097U, discloses a wheel walking hydraulic control device, which is used for hydraulic control of wheel walking: as shown in fig. 1, the traveling system includes 1 oil tank 1, 1 hydraulic pump 2, 1 three-position four-way electromagnetic directional valve 3, 2 hydraulic motors 4 and 6, 1 two-position four-way electromagnetic directional valve 5, and 1 check valve 7. In the use process, the pressure of an oil passage at the oil inlet of the check valve 7 is very small or 0, the oil supplementing effect is not good or is very poor, the suction phenomenon can occur when the motor moves along a non-linear route (such as turning), abnormal sound is accompanied, the service life of the motor is influenced, and the series-parallel connection of the motors 4 and 6 is realized through the switching of the two-position four-way electromagnetic directional valve 5, so that the high-speed and low-speed running of equipment is realized, and the cost is high.
The prior patent CN204778616U discloses a power control device (fig. 2) for eliminating steering and walking noise of a scissor fork, which adds a damper 6 on the basis of CN205173097U, and when the flow of the system is large, the back pressure created by the damper is too high, resulting in high energy consumption.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a prevent inhaling empty oil supplementation walking hydraulic motor control system that can strengthen oil supplementation effect, reduce cost.
The utility model discloses the technical scheme who adopts does:
an air suction prevention oil supplementing walking hydraulic motor control system comprises: the hydraulic control system comprises an oil tank, a hydraulic pump, an electromagnetic directional valve, a first motor, a second motor, a first one-way valve, a second one-way valve and a back pressure device;
the electromagnetic directional valve is provided with a main oil inlet, a main oil return port, a working oil inlet and a working oil return port;
the hydraulic pump is connected between the oil outlet of the oil tank and the main oil inlet, the first motor and the second motor are connected in series between the working oil inlet and the working oil return port, the common end of the first motor and the second motor is connected with the oil outlet of the first one-way valve, the oil inlet of the first one-way valve is connected with the main oil return port, and the second one-way valve is connected with the back pressure device in parallel between the main oil return port and the oil return port of the oil tank.
Further, the electromagnetic directional valve is a three-position four-way electromagnetic directional valve.
Further, the back pressure device is a damper.
Preferably, the damping is thin-wall small hole damping or elongated hole damping.
Further, the back pressure device is a throttle valve.
The utility model discloses detailed embodiment's beneficial effect:
1. increase certain backpressure at the oil inlet oil circuit of first check valve through damping and second check valve, can strengthen the benefit oily effect, reduce two motor differential of nonlinear line walking and cause inhale sky abnormal sound and motor wearing and tearing.
2. Establish the backpressure through the parallelly connected combined action of damping and second check valve, can solve on the one hand only with the damping, the backpressure that the damping was established when system flow is big is too high, the problem that the energy consumption is high, and on the other hand can also solve only with the check valve, can remain the backpressure in the pipeline when the system stops to move, influences the problem of system performance and stability.
3. The two-position four-way electromagnetic directional valve is eliminated, high-speed and low-speed control is realized by controlling the rotating speed of the motor, and the system cost can be reduced.
Drawings
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a conventional wheel-walking hydraulic control device;
FIG. 2 is a schematic diagram of a conventional steering and walking noise power control device for a scissors fork;
fig. 3 is a schematic diagram of an embodiment of the air suction prevention oil supplementing walking hydraulic motor control system of the present invention.
Detailed Description
As shown in fig. 3, for the utility model discloses a prevent inhaling empty walking hydraulic motor control system that mends oil, include: the hydraulic control system comprises an oil tank 1, a hydraulic pump 2, an electromagnetic directional valve 3, a first motor 4, a second motor 5, a first check valve 6, a second check valve 8 and a back pressure device 7; the electromagnetic directional valve 3 is provided with a main oil inlet, a main oil return port, a working oil inlet and a working oil return port;
the specific positions and connection relations of the components are as follows: the hydraulic pump 2 is connected between an oil outlet and a main oil inlet of the oil tank 1, the first motor 4 and the second motor 5 are connected between a working oil inlet and a working oil return port in series, a common end of the first motor 4 and the second motor 5 is connected with an oil outlet of the first one-way valve 6, an oil inlet of the first one-way valve 6 is connected with the main oil return port, and the second one-way valve 8 and the backpressure device 7 are connected between the main oil return port and an oil return port of the oil tank 1 in parallel.
In this embodiment, the electromagnetic directional valve 3 is preferably a three-position four-way electromagnetic directional valve, but may be other types of directional valves. Similarly, the first embodiment of the back pressure means 7 is damping. Preferably, the damping is thin-walled small-hole damping or elongated-hole damping. Furthermore, the second embodiment of the back pressure means 7 is a throttle valve.
When the hydraulic control system works, the oil tank 1 is used for storing oil and providing hydraulic oil flow required by the control system of the walking hydraulic motor, the hydraulic pump 2 is driven by the motor to pump the oil in the oil tank 1 to the electromagnetic directional valve 3, the oil output by the electromagnetic directional valve 3 drives the first motor 4 and the second motor 5 to work, and the first motor 4 and the second motor 5 drive wheels to walk;
the oil inlet oil way of the first check valve 6 is added with certain back pressure through the damping and the second check valve 8, so that the oil supplementing effect can be enhanced, and the air suction abnormal sound and the motor abrasion caused by the differential speed of the two non-linear traveling motors are reduced. Establish the backpressure through the parallelly connected combined action of damping and second check valve 8, can solve on the one hand only with the damping, the backpressure that the damping was established when system flow is big is too high, the problem that the energy consumption is high, and on the other hand can also solve only with the check valve, when the system stops to move can remain the backpressure in the pipeline, influence the problem of system performance and stability. The two-position four-way electromagnetic directional valve 3 is eliminated, high-speed and low-speed control is realized by controlling the motor rotating speed of the hydraulic pump 2, and the system cost can be reduced.
The above embodiments are for explanation of the present invention, however, the present invention is not limited to the details of the above embodiments, and various equivalent substitutions or simple modifications performed by those skilled in the art within the technical concept of the present invention should all belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides an air suction prevention oil supplementing walking hydraulic motor control system which characterized in that includes: the hydraulic control system comprises an oil tank, a hydraulic pump, an electromagnetic directional valve, a first motor, a second motor, a first one-way valve, a second one-way valve and a back pressure device;
the electromagnetic directional valve is provided with a main oil inlet, a main oil return port, a working oil inlet and a working oil return port;
the hydraulic pump is connected between the oil outlet of the oil tank and the main oil inlet, the first motor and the second motor are connected in series between the working oil inlet and the working oil return port, the common end of the first motor and the second motor is connected with the oil outlet of the first one-way valve, the oil inlet of the first one-way valve is connected with the main oil return port, and the second one-way valve is connected with the back pressure device in parallel between the main oil return port and the oil return port of the oil tank.
2. The air suction and oil supplement preventing walking hydraulic motor control system according to claim 1, wherein the electromagnetic directional valve is a three-position four-way electromagnetic directional valve.
3. The air suction and oil replenishment walking prevention hydraulic motor control system according to claim 1, wherein the back pressure device is a damper.
4. The air suction and oil supplementing walking hydraulic motor control system according to claim 3, wherein the damping is thin-walled small hole damping or elongated hole damping.
5. The air suction and oil replenishment prevention walking hydraulic motor control system according to claim 1, wherein the back pressure device is a throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921088868.6U CN210599614U (en) | 2019-07-11 | 2019-07-11 | Control system of air suction prevention oil supplementing walking hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921088868.6U CN210599614U (en) | 2019-07-11 | 2019-07-11 | Control system of air suction prevention oil supplementing walking hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210599614U true CN210599614U (en) | 2020-05-22 |
Family
ID=70719361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921088868.6U Active CN210599614U (en) | 2019-07-11 | 2019-07-11 | Control system of air suction prevention oil supplementing walking hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210599614U (en) |
-
2019
- 2019-07-11 CN CN201921088868.6U patent/CN210599614U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A control system of anti suction air filling oil walking hydraulic motor Effective date of registration: 20220112 Granted publication date: 20200522 Pledgee: Agricultural Bank of China Limited Ningxiang sub branch Pledgor: Hunan Xingbang Intelligent Equipment Co.,Ltd. Registration number: Y2022430000002 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231110 Granted publication date: 20200522 Pledgee: Agricultural Bank of China Limited Ningxiang sub branch Pledgor: Hunan Xingbang Intelligent Equipment Co.,Ltd. Registration number: Y2022430000002 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |