CN210234945U - Hydraulic brake releasing system for underground trackless equipment trailer - Google Patents
Hydraulic brake releasing system for underground trackless equipment trailer Download PDFInfo
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- CN210234945U CN210234945U CN201921086434.2U CN201921086434U CN210234945U CN 210234945 U CN210234945 U CN 210234945U CN 201921086434 U CN201921086434 U CN 201921086434U CN 210234945 U CN210234945 U CN 210234945U
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model provides a braking system is removed to trackless equipment trailer hydraulic pressure in pit, including the foot brake valve among the service braking system, the foot brake valve communicates with each other through pipeline B and bridge brake pipeline, be equipped with the shuttle valve between bridge brake pipeline and the pipeline B, the shuttle valve communicates with each other with pipeline B, bridge brake pipeline and pipeline A respectively, is equipped with pressure switch, solenoid valve on the pipeline A, and pipeline A is not expert when the solenoid valve circular telegram, and pipeline A communicates with each other with hydraulic tank during the power failure, and pressure switch is located between solenoid valve and the shuttle valve, the solenoid valve passes through oil circuit C and links to each other with the trailer jar, be equipped with reset spring in the trailer jar. The utility model discloses the option is adorned in the brake hydraulic system of the trackless equipment in pit of having installed normally closed brake, and trailer hydraulic pressure is removed braking system and is opened the brake in the transaxle and removes the parking braking when being used for the vehicle to break down, and the trailer operation of being convenient for has reduced personnel and has manually removed the braking, has alleviateed workman intensity of labour, has improved work efficiency.
Description
Technical Field
The utility model belongs to the technical field of mining equipment, specifically speaking relates to a braking system is removed to trackless equipment trailer hydraulic pressure in pit.
Background
At present, after the underground trackless equipment breaks down and stops the brake, when the trailer operation needs to be carried out, hydraulic oil needs to be manually pumped into a bridge brake by a hand pump to remove the parking brake, then the trailer can be carried out, the labor intensity of workers is increased, and the working efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a braking system is removed to trackless equipment trailer hydraulic pressure in pit has solved and has removed braking method workman intensity of labour shortcoming big, that work efficiency is low among the background art.
The technical scheme of the utility model is realized like this: the hydraulic brake releasing system for the underground trackless equipment trailer comprises a foot brake valve in a service brake system, wherein the foot brake valve is communicated with a bridge brake pipeline through a pipeline B, a shuttle valve is arranged between the bridge brake pipeline and the pipeline B, the shuttle valve is respectively communicated with the pipeline B, the bridge brake pipeline and a pipeline A, a pressure switch and an electromagnetic valve are arranged on the pipeline A, the pipeline A is not communicated when the electromagnetic valve is electrified, the pipeline A is communicated with a hydraulic oil tank when the electromagnetic valve is not electrified, the pressure switch is positioned between the electromagnetic valve and the shuttle valve, the electromagnetic valve is connected with a trailer cylinder through an oil way C, a reset spring is arranged in the trailer cylinder, and the trailer cylinder is connected with the hydraulic oil tank.
The utility model has the advantages that: the utility model discloses after the braking of parking breaks down in trackless equipment in the pit, carry the bridge stopper with hydraulic oil through the trailer jar in, can open the stopper and remove the parking braking, this system optional adorns in the braking hydraulic system of the trackless equipment in the pit of having installed normally closed stopper, trailer hydraulic pressure is removed braking system and is opened the brake in the transaxle and removes the parking braking when being used for the vehicle to break down, the trailer operation of being convenient for has reduced personnel and has manually removed the braking, the workman intensity of labour has been alleviateed, and work efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of the parts: 1. trailer jar, 2, solenoid valve, 3, pressure switch, 4, shuttle valve, 5, bridge brake pipeline, 6, foot brake valve, 7, reset spring, 8, pipeline A, 9, pipeline B, 10, pipeline C, 11, hydraulic tank.
Detailed Description
For a better understanding and appreciation of the invention, it will be further described in connection with the accompanying drawings: a hydraulic brake releasing system for an underground trackless equipment trailer comprises a foot brake valve 6 in a service brake system, wherein the foot brake valve 6 is communicated with a bridge brake pipeline 5 through a pipeline B9, a shuttle valve 4 is arranged between the bridge brake pipeline 5 and a pipeline B5, the shuttle valve 4 is respectively communicated with a pipeline B9, the bridge brake pipeline 5 and a pipeline A8, a pressure switch 3 and an electromagnetic valve 2 are arranged on the pipeline A8, the pipeline A8 is not communicated when the electromagnetic valve is electrified, the pipeline A8 is communicated with a hydraulic oil tank 11 when the electromagnetic valve is not electrified, the pressure switch 3 is positioned between the electromagnetic valve 2 and the shuttle valve 4, the electromagnetic valve 2 is connected with a trailer cylinder 1 through an oil way C10, a reset spring 7 is arranged in the trailer cylinder 1, the trailer cylinder 1 adopts a resettable structure with a spring inside, and belongs to a single-acting oil cylinder, and the trailer cylinder 1 is.
When the vehicle normally runs, the electromagnetic valve 2 and the pressure switch 3 are electrified, the electromagnetic valve 2 prevents hydraulic oil in the trailer cylinder 1 from entering a driving brake hydraulic system, the pressure switch 3 detects whether pressure exists in a pipeline A8 between the electromagnetic valve 2 and the shuttle valve 4, when the pressure switch 3 detects that the pressure exists in the pipeline, the pressure switch 3 indicates that the trailer hydraulic brake system fails, the pressure switch 3 outputs a signal to stop the whole vehicle for braking, and at the moment, the failure is manually removed to remove the brake, so that the normal driving brake hydraulic system is not influenced by the trailer hydraulic brake system, the shuttle valve 4 prevents the brake removal hydraulic system from interfering with a driving brake hydraulic system of underground trackless equipment, and the driving brake hydraulic system normally works; when the vehicle breaks down, solenoid valve 2, pressure switch 3 lose the electricity, and pressure switch 3 loses the electricity and does not play the detection effect, and solenoid valve 2 makes trailer jar 1 and bridge brake pipeline 5 intercommunication, and the trailer hook compression trailer jar 1 just can open the stopper and remove whole car braking, the trailer operation of being convenient for in carrying the bridge brake with hydraulic oil through shuttle valve 4 this moment.
Claims (1)
1. A hydraulic brake releasing system for an underground trackless equipment trailer comprises a foot brake valve (6) in a service brake system, wherein the foot brake valve (6) is communicated with a bridge brake pipeline (5) through a pipeline B (9), and is characterized in that a shuttle valve (4) is arranged between the bridge brake pipeline (5) and the pipeline B (9), the shuttle valve (4) is respectively communicated with the pipeline B (9), the bridge brake pipeline (5) and a pipeline A (8), a pressure switch (3) and an electromagnetic valve (2) are arranged on the pipeline A (8), the pipeline A (8) is not communicated when the electromagnetic valve (2) is electrified, the pipeline A (8) is communicated with a hydraulic oil tank (11) when the electromagnetic valve (2) is not electrified, the pressure switch (3) is positioned between the electromagnetic valve (2) and the shuttle valve (4), the electromagnetic valve (2) is connected with a trailer cylinder (1) through an oil way C (10), and a reset spring (7) is arranged in the trailer cylinder (1), the trailer cylinder (1) is connected with a hydraulic oil tank (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086434.2U CN210234945U (en) | 2019-07-12 | 2019-07-12 | Hydraulic brake releasing system for underground trackless equipment trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086434.2U CN210234945U (en) | 2019-07-12 | 2019-07-12 | Hydraulic brake releasing system for underground trackless equipment trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210234945U true CN210234945U (en) | 2020-04-03 |
Family
ID=69990725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921086434.2U Active CN210234945U (en) | 2019-07-12 | 2019-07-12 | Hydraulic brake releasing system for underground trackless equipment trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210234945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963587A (en) * | 2020-09-03 | 2020-11-20 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
-
2019
- 2019-07-12 CN CN201921086434.2U patent/CN210234945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963587A (en) * | 2020-09-03 | 2020-11-20 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
| CN111963587B (en) * | 2020-09-03 | 2021-12-07 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
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