CN109519448A - A kind of driving device with safety device - Google Patents
A kind of driving device with safety device Download PDFInfo
- Publication number
- CN109519448A CN109519448A CN201811429638.1A CN201811429638A CN109519448A CN 109519448 A CN109519448 A CN 109519448A CN 201811429638 A CN201811429638 A CN 201811429638A CN 109519448 A CN109519448 A CN 109519448A
- Authority
- CN
- China
- Prior art keywords
- fluid port
- hydraulic fluid
- valve
- safety device
- reversal valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of driving devices with safety device, including motor, self-circulating pump, safety device, hydraulic system, this driving device will not go out driving phenomenon, it breaks down in driving device speed governing part, when can not control again the highest running speed of driving device, the highest running speed of safety device meeting automatically controlled actuating device in driving device is no more than setting value, prevents driving phenomenon occur.
Description
Technical field
The present invention relates to hydraulic-driven technical field more particularly to a kind of driving devices with safety device.
Background technique
At present without band speed-limiting protection function in cableway driver, especially hydraulic driving device for mine cableway
Can, when speed governing part breaks down, the highest running speed of driving device cannot be limited, and there is driving phenomenon occur
Security risk threatens to personal safety.
Summary of the invention
Following problems exist in the prior art to overcome, without band speed-limiting protection function in existing cableway fluid pressure drive device
Can, there is the security risks for driving phenomenon occur, threaten to personal safety；The present invention provides a kind of band safety
The driving device of device, including motor, self-circulating pump, hydraulic system, it is characterised in that: the hydraulic system include fuel tank,
Self-circulating pump, reversal valve and safety device, the reversal valve are the reversal valve of 3-position 4-way electromagnetism, the oil inlet of the self-circulating pump
The flowline of mouthful S connected tank, the P of slippage pump oil outlet X3 and reversal valve mouth is connected built in self-circulating pump, the P mouth of safety device and
The P mouth of reversal valve is connected, and T mouthfuls of the other end of safety device couples with the oil returning branch pipe T3 of the T of reversal valve mouth and fuel tank respectively；It changes
It is connected respectively with Variable Control oil cylinder interface X1, X2 of self-circulating pump to A, B hydraulic fluid port of valve, the drain tap X4 of self-circulating pump connects oil
The oil returning branch pipe T1 of case.
On this basis, further include hydraulic motor, described self-circulating pump main oil pipe interface A, B connect respectively hydraulic motor A,
B interface, the oil returning branch pipe T2 of the drain tap connected tank of hydraulic motor.
On this basis, there are overflow valve, the P hydraulic fluid port phase of the P hydraulic fluid port and reversal valve of overflow valve in the P hydraulic fluid port connection of reversal valve
Connection, the T hydraulic fluid port of overflow valve couple with the oil returning branch pipe T3 of fuel tank.
On this basis, coupling between slippage pump oil outlet X3 built in self-circulating pump and the P hydraulic fluid port of reversal valve has decompression
Valve, the P hydraulic fluid port of pressure reducing valve are connected with slippage pump oil outlet X3 hydraulic fluid port built in self-circulating pump, the A hydraulic fluid port of pressure reducing valve and the P of reversal valve
Hydraulic fluid port is connected, and the T hydraulic fluid port of pressure reducing valve couples with the oil returning branch pipe T3 of fuel tank.
On this basis, safety device can be safety valve or overflow valve.
Compared with prior art, the beneficial effects of the present invention are:
The driving device will not go out driving phenomenon, driving device speed governing part break down, can not again to driving device most
When the high speed of service is controlled, the highest running speed of the safety device meeting automatically controlled actuating device in driving device does not surpass
Setting value is crossed, prevents driving phenomenon occur.
Detailed description of the invention
Fig. 1 is the structure principle chart of driving device with safety device of the invention；
Fig. 2 is a kind of structure principle chart adjusted the speed with overflow valve of driving device with safety device of the invention；
Fig. 3 is a kind of structure principle chart with reducing valve for speed regulation of driving device with safety device of the invention；
In figure: 4, motor, 14, self-circulating pump, 19, reversal valve, 32, safety device, 35, overflow valve, 36, pressure reducing valve, 17, hydraulic
Motor.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1-Figure 3, the present invention schematically illustrates a kind of driving device with safety device.
Embodiment 1
As shown in Figure 1, a kind of driving device with safety device, including motor 4, self-circulating pump 14, hydraulic system, in motor 4
The first line of a couplet is connected to circulating pump 14, is connected to safety device 32 in the control oil circuit first line of a couplet of hydraulic system, safety device 32 can be safety
Valve or overflow valve, the connection relationship of the hydraulic system are as follows: the flowline of the oil inlet S connected tank 1 of self-circulating pump 14 follows certainly
Slippage pump oil outlet X3 and the P mouth of reversal valve 19 are connected built in ring pump 14, the P mouth phase of the P mouth and reversal valve 19 of safety device 32
Connection, T mouthfuls of the other end of safety device 32 couple with the oil returning branch pipe T3 of the T of reversal valve 19 mouth and fuel tank 1 respectively；Reversal valve 19
A, B hydraulic fluid port is connected with Variable Control oil cylinder interface X1, X2 of self-circulating pump 14 respectively, the drain tap X4 connected tank of self-circulating pump 14
1 oil returning branch pipe T1, self-circulating pump 14 main oil pipe interface A, B meet the A of hydraulic motor 17, B interface respectively, and hydraulic motor 17 is let out
The oil returning branch pipe T2 of hydraulic fluid port connected tank 1.
Embodiment 2
As shown in Fig. 2, a kind of driving device with safety device adjusted the speed with overflow valve, to enable driving device speed of service nothing
Grade is adjustable, increases overflow valve 35 on the basic structure schematic diagram of driving device with safety device, in the P oil of reversal valve 19
Mouth connection has overflow valve 35, the hydraulic system connection relationship are as follows: the P hydraulic fluid port phase of the P hydraulic fluid port of overflow valve 35 and reversal valve 19
Connection, the T hydraulic fluid port of overflow valve 35 couple with the oil returning branch pipe T3 of fuel tank 1.
Embodiment 3
As shown in figure 3, a kind of driving device with safety device with reducing valve for speed regulation, to enable driving device speed of service nothing
Grade is adjustable, pressure reducing valve 36 is increased on the basic structure schematic diagram of driving device with safety device, in self-circulating pump 14
It sets and is in series with pressure reducing valve 36 between slippage pump oil outlet X3 and the P hydraulic fluid port of reversal valve 19, the hydraulic system connection relationship are as follows:
The P hydraulic fluid port of pressure reducing valve 36 is connected with slippage pump oil outlet X3 hydraulic fluid port built in self-circulating pump 14, the A hydraulic fluid port and reversal valve of pressure reducing valve 36
19 P hydraulic fluid port is connected, and the T hydraulic fluid port of pressure reducing valve 36 couples with the oil returning branch pipe T3 of fuel tank 1.
Working principle:
The control system speed of service determines by the P hydraulic fluid port pressure of reversal valve 19, due to safety device pressure control port P with
The P hydraulic fluid port of reversal valve is connected, and the maximum pressure of the control system speed of service is restricted by safety device, the protection pressure of safety device
After force value is set, i.e. the P hydraulic fluid port maximum pressure of reversal valve is just set, when the P hydraulic fluid port pressure of reversal valve is greater than safety dress
When the protection pressure value set, extra pressure is laid down in safety device movement, is played on limitation hydraulic system control oil circuit most
The effect of height control pressure, to achieve the purpose that limitation system highest running speed.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and
Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of protection of the claims.
Claims (5)
1. a kind of driving device with safety device, including motor (4), self-circulating pump (14), hydraulic system, it is characterised in that:
The hydraulic system includes fuel tank (1), self-circulating pump (14), reversal valve (19) and safety device (32), the reversal valve
It (10) is the reversal valve of 3-position 4-way electromagnetism, the flowline of the oil inlet S connected tank (1) of the self-circulating pump (14), self-loopa
Slippage pump oil outlet X3 and the P mouth of reversal valve (19) are connected built in pump (14), P mouth and the reversal valve (19) of safety device (32)
P mouthfuls are connected, and T mouthfuls of the other end of safety device (32) joins with the oil returning branch pipe T3 of the T mouth of reversal valve (19) and fuel tank (1) respectively
It connects；A, B hydraulic fluid port of reversal valve (19) are connected with Variable Control oil cylinder interface X1, X2 of self-circulating pump (14) respectively, self-circulating pump
(14) the oil returning branch pipe T1 of drain tap X4 connected tank (1).
2. a kind of driving device with safety device according to claim 1, it is characterised in that: further include hydraulic motor
(17), described self-circulating pump (14) main oil pipe interface A, B meet the A of hydraulic motor (17), B interface respectively, hydraulic motor (17)
The oil returning branch pipe T2 of drain tap connected tank (1).
3. a kind of driving device with safety device according to claim 2, it is characterised in that: the P in reversal valve (19)
Hydraulic fluid port connection has overflow valve (35), and the P hydraulic fluid port and the P hydraulic fluid port of reversal valve (19) of overflow valve (35) are connected, the T oil of overflow valve (35)
Mouth couples with the oil returning branch pipe T3 of fuel tank (1).
4. a kind of driving device with safety device according to claim 2, it is characterised in that: in self-circulating pump (14)
Setting to couple between slippage pump oil outlet X3 and the P hydraulic fluid port of reversal valve (19) has pressure reducing valve (36), the P hydraulic fluid port of pressure reducing valve (36) with from
Slippage pump oil outlet X3 hydraulic fluid port is connected built in circulating pump (14), the P hydraulic fluid port phase of the A hydraulic fluid port and reversal valve (19) of pressure reducing valve (36)
Connection, the T hydraulic fluid port of pressure reducing valve (36) couple with the oil returning branch pipe T3 of fuel tank (1).
5. a kind of driving device with safety device according to claim 2, it is characterised in that: safety device (32) can be with
It is safety valve or overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811429638.1A CN109519448A (en) | 2018-11-28 | 2018-11-28 | A kind of driving device with safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811429638.1A CN109519448A (en) | 2018-11-28 | 2018-11-28 | A kind of driving device with safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109519448A true CN109519448A (en) | 2019-03-26 |
Family
ID=65793374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811429638.1A Pending CN109519448A (en) | 2018-11-28 | 2018-11-28 | A kind of driving device with safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519448A (en) |
-
2018
- 2018-11-28 CN CN201811429638.1A patent/CN109519448A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190326 |
|
| WD01 | Invention patent application deemed withdrawn after publication |