CN205118073U - Passive hydraulic braking system - Google Patents
Passive hydraulic braking system Download PDFInfo
- Publication number
- CN205118073U CN205118073U CN201520847645.9U CN201520847645U CN205118073U CN 205118073 U CN205118073 U CN 205118073U CN 201520847645 U CN201520847645 U CN 201520847645U CN 205118073 U CN205118073 U CN 205118073U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- oil
- flow control
- holding function
- pressure relief
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a passive hydraulic braking system, including the oil pump, hydraulic pressure bridge, flow control device, the pressure relief device who has the pressurize function, liquid braking device, manual pump, oil tank. The utility model has the following technical effects: can realize passive braking, need not rely on subsidiary outside power like the motor etc. Promptly, also can brake, because the valve unit who adopts is few, so revealing of hydraulic oil is just few comparatively speaking, and maintain that the degree of difficulty can further reduce to effective reduce cost, be equipped with reliable ftercompction measure, extension system security operating duration.
Description
Technical field
The utility model relates to a kind of hydraulic braking sytem.
Background technique
The braking system of conventional rails haulage device drives pump directly to rotate by wheel, and then by a series of valve group, equipment is braked, the valve group of employing is too many, and cause leakage point more, add difficulty to the maintenance of equipment, cost is also corresponding higher.And there is no ftercompction measure, cause the safe operation time of system shorter.
Model utility content
The purpose of this utility model is to provide a kind of passive hydraulic braking system.
The technical solution of the utility model is, a kind of passive hydraulic braking system, comprises oil pump, hydraulic bridge, flow control device, has the pressure relief device of pressure holding function, hydraulic brake, hand pump, fuel tank;
Described oil pump oil inlet and outlet is by A, B mouth of oil pipe connecting fluid breaking the bridge, hydraulic bridge filler opening O connects fuel tank by oil pipe, the oil outlet O of hydraulic bridge connects fuel tank by flow control device, the oil outlet P of hydraulic bridge is connected with the control port X of the pressure relief device with pressure holding function, the drain tap T with the pressure relief device of pressure holding function is connected with fuel tank, the oil inlet P with the pressure relief device of pressure holding function is connected with hydraulic brake, the oil outlet of hand pump is connected with the hydraulic fluid port of hydraulic brake, and the filler opening of hand pump is connected with fuel tank.
Described flow control device can be any one in throttle valve, series flow control valve or throttle orifice.
The pressure relief device of described pressure holding function can be any one in Pilot operated check valve or pilot operated directional control valve.
Described hydraulic bridge oil outlet O and have pressure holding function pressure relief device control port X between a flow control device is set, this flow control device is any one in sequence valve or series flow control valve.
Also arrange emergency decompression valve, emergency decompression valve one end is connected with hydraulic brake hydraulic fluid port, and the other end is connected with fuel tank.
Also pressure gauge is set, on the oil circuit that the oil inlet P that pressure gauge is arranged at the pressure relief device with pressure holding function is connected with hydraulic brake.
The utility model has following technique effect: can realize passive braking, does not namely need to rely on subsidiary external impetus as motor etc., also can brake; Because adopted control valve group is few, so the leakage of hydraulic oil is just few comparatively speaking, and maintenance difficulties can reduce further, thus effectively reduces costs; Be provided with reliable ftercompction measure, extend the safe operation time of system.
Accompanying drawing explanation
Fig. 1 is the hydraulic braking sytem figure of a kind of specific embodiment of the utility model.
Fig. 2 is the hydraulic braking sytem figure of the utility model the second specific embodiment.
Fig. 3 is the hydraulic braking sytem figure of the third specific embodiment of the utility model.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of passive hydraulic braking system, comprises oil pump 1; Hydraulic bridge 2; Flow control device 3; There is the pressure relief device 4 of pressure holding function; Hydraulic brake 7; Hand pump 5; Fuel tank 6;
The oil inlet and outlet of described oil pump 1 passes through A, B mouth of oil pipe connecting fluid breaking the bridge 2, the filler opening O of hydraulic bridge 2 connects fuel tank 6 by oil pipe, the oil outlet P of hydraulic bridge 2 connects fuel tank 6 by flow control device 3, the oil outlet P of hydraulic bridge 2 is connected with the control port X of the pressure relief device 4 with pressure holding function, the drain tap T with the pressure relief device 4 of pressure holding function is connected with fuel tank 6, the oil inlet P with the pressure relief device 4 of pressure holding function is connected with hydraulic brake 7, the oil outlet of hand pump 5 is connected with hydraulic brake 7 hydraulic fluid port, and the filler opening of hand pump 5 is connected with fuel tank 6.
Described flow control device 3 is any one in throttle valve, series flow control valve or throttle orifice.
The pressure relief device 4 of described pressure holding function is any one in Pilot operated check valve or pilot operated directional control valve.
Described hydraulic bridge 2 oil outlet O and have pressure holding function pressure relief device 4 control port X between a flow control device 9 is set, this flow control device 9 is any one in sequence valve or series flow control valve.
Also arrange emergency decompression valve 8, emergency decompression valve 8 one end is connected with hydraulic brake 7 hydraulic fluid port, and the other end is connected with fuel tank 6.
Also arrange pressure gauge 10, pressure gauge 10 is arranged on the oil circuit that pressure relief device 4 oil inlet P with pressure holding function is connected with hydraulic brake 7.
Working principle of the present utility model: wheel drives main chain wheel to rotate, rotating speed is passed to auxiliary chain wheel by chain by main chain wheel, auxiliary chain wheel drives oil pump 1 to rotate, rotating speed is transmitted oil pump 1, when rotating speed reaches the limit values, oil pump 1 output flow is greater than the maximum value that flow control device 3 sets, flow control device 3 is to the pressure relief device 4X mouth input flow rate with pressure holding function, the pressure relief device 4 with pressure holding function opens P and T-phase is led to, hydraulic brake 7 pressure release is braked, and realizes the safety brake of rail-based conveyor system.When equipment needs again to run, first close emergency decompression valve 5, then use hand pump 8 from oil suction in fuel tank 9 to hydraulic brake 7 fuel feeding, hydraulic brake 7 is opened.
Claims (6)
1. a passive hydraulic braking system, is characterized in that: comprise oil pump (1); Hydraulic bridge (2); Flow control device (3); There is the pressure relief device (4) of pressure holding function; Hydraulic brake (7); Hand pump (5); Fuel tank (6);
The oil inlet and outlet of described oil pump (1) passes through the A of oil pipe connecting fluid breaking the bridge (2), B mouth, the oil inlet P of hydraulic bridge (2) connects fuel tank (6) by oil pipe, the oil outlet P of hydraulic bridge (2) connects fuel tank (6) by flow control device (3), the oil outlet O of hydraulic bridge (2) is connected with the control port X of the pressure relief device (4) with pressure holding function, the drain tap T with the pressure relief device (4) of pressure holding function is connected with fuel tank (6), the oil inlet P with the pressure relief device (4) of pressure holding function is connected with hydraulic brake (7), the oil outlet of hand pump (5) is connected with hydraulic brake (7) hydraulic fluid port, the filler opening of hand pump (5) is connected with fuel tank (6).
2. a kind of passive hydraulic braking system according to claim 1, is characterized in that, described flow control device (3) is throttle valve, any one in series flow control valve or throttle orifice.
3. a kind of passive hydraulic braking system according to claim 2, is characterized in that, the pressure relief device (4) of described pressure holding function is any one in Pilot operated check valve or pilot operated directional control valve.
4. a kind of passive hydraulic braking system according to any one of claim 1-3, it is characterized in that, described hydraulic bridge (2) oil outlet O and have pressure holding function pressure relief device (4) control port X between a flow control device (9) is set, this flow control device (9) is any one in sequence valve or series flow control valve.
5. a kind of passive hydraulic braking system according to any one of claim 1-3, it is characterized in that, emergency decompression valve (8) is also set, emergency decompression valve (8) one end is connected with hydraulic brake (7) hydraulic fluid port, and the other end is connected with fuel tank (6).
6. a kind of passive hydraulic braking system according to any one of claim 1-3, it is characterized in that, also arrange pressure gauge (10), pressure gauge (10) is arranged on the oil circuit that pressure relief device (4) oil inlet P with pressure holding function is connected with hydraulic brake (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847645.9U CN205118073U (en) | 2015-10-28 | 2015-10-28 | Passive hydraulic braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847645.9U CN205118073U (en) | 2015-10-28 | 2015-10-28 | Passive hydraulic braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118073U true CN205118073U (en) | 2016-03-30 |
Family
ID=55573688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520847645.9U Withdrawn - After Issue CN205118073U (en) | 2015-10-28 | 2015-10-28 | Passive hydraulic braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387101A (en) * | 2015-10-28 | 2016-03-09 | 湘潭市恒欣实业有限公司 | Passive hydraulic braking system |
-
2015
- 2015-10-28 CN CN201520847645.9U patent/CN205118073U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387101A (en) * | 2015-10-28 | 2016-03-09 | 湘潭市恒欣实业有限公司 | Passive hydraulic braking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20180626 |
|
| AV01 | Patent right actively abandoned |