CN205737493U - Underground loader brakes - Google Patents
Underground loader brakes Download PDFInfo
- Publication number
- CN205737493U CN205737493U CN201620455048.6U CN201620455048U CN205737493U CN 205737493 U CN205737493 U CN 205737493U CN 201620455048 U CN201620455048 U CN 201620455048U CN 205737493 U CN205737493 U CN 205737493U
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- push rod
- valve
- electromagnetic valve
- hand push
- braking
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Abstract
The purpose of this utility model be to provide a kind of the most manually controllable but also can Electromagnetic Control braking system, the hydraulic pump being connected with fuel tank including oil-in, connect high pressure filter on the pipeline of the oil-out side of hydraulic pump to be followed by replenishing valve, on the pressure oil output pipe of replenishing valve, brake accumulator is set, pressure switch, the pressure oil import P of braking electromagnetic valve is connected with the pressure oil output pipe of replenishing valve, pressure oil outlet A and the driving foot brake valves of braking electromagnetic valve, front-rear axle brake is linked in sequence, described braking electromagnetic valve is electromagnetism two-bit triplet electromagnetic valve, hand push rod it is additionally provided with on braking electromagnetic valve, the place station of the independently drive control valve core of the solenoid push rod on hand push rod and braking electromagnetic valve, this electromagnetic valve can improve safety and reliability, fully reply brake hard situation.
Description
Technical field
This utility model device relates to brakes, particularly to mining machinery industry loader, fortune
The underground trackless equipment brakes such as mine car.
Background technology
Underground trackless equipment mainly applies to mine down-hole, and working condition is extremely severe, underground mine
Owing to road is narrow, slope is big, curved many, the traffic safety of underground loader is had higher requirement.
Underground loader many employings enclosed multi-disc wet type spring-loaded brake at present, this kind of mode is sealed more entirely
Close multi-disc wet type liquid braking device, can not additionally configure auxiliary brake and parking brake, braking
The features such as hydraulic circuit uses single loop, has a simple in construction, safe and reliable.Underground loads at present
The typical brake system of machine as shown in Figure 1, including hydraulic pump 1, high pressure filter 2, topping up
Valve 3, brake accumulator 4, pressure switch 5, driving foot brake valves 6, front-rear axle brake 7 with
And braking electromagnetic valve 8.Apply the underground loader stopping brake of this system and brake hard by electricity
Magnet valve 8 controls, and during work, electromagnetic valve 8 coil obtains electric, and P mouth turns on A mouth, bridge brake 7
Obtain high-voltage oil liquid from replenishing valve 3 and overcome tripping spring power thus releasing of brake sheet, run into urgent feelings
When condition or parking, electromagnetic valve 8 coil blackout, front-rear axle braking fluid off-load enters fuel tank 9,
The spring of bridge brake 7 kills brake block, car braking.By underground work inclement condition, hydraulic pressure
The factor impacts such as oil contamination, electromagnetic valve 8 there will be spring failure unavoidably, spool is stuck phenomenon,
Cause braking and insensitive even cause security incident.
Utility model content
The purpose of this utility model is to provide a kind of the most manually controllable but also can the braking system of Electromagnetic Control
System, improves safety and reliability, fully reply brake hard situation.
For achieving the above object, this utility model have employed technical scheme: a kind of underground loader system
Dynamic system, the hydraulic pump being connected with fuel tank including oil-in, on the pipeline of the oil-out side of hydraulic pump
Connect high pressure filter to be followed by replenishing valve, the pressure oil output pipe of replenishing valve arranges braking and stores
Energy device, pressure switch, the pressure oil import P of braking electromagnetic valve and the pressure oil outlet tube of replenishing valve
Road is connected, and the pressure oil of braking electromagnetic valve outlet A and foot brake valves of driving a vehicle, front-rear axle brake are suitable
Sequence connects, it is characterised in that: described braking electromagnetic valve is electromagnetism two-bit triplet electromagnetic valve, braking
The solenoid push rod being additionally provided with on electromagnetic valve on hand push rod, hand push rod and braking electromagnetic valve
The independently place station of drive control valve core.
In technique scheme, this electromagnetic valve allows to be controlled by handle in the case of dead electricity,
When electromagnetic valve in normal operation, hand push rod rests on initial position i.e. off-position.
When running into emergency stop button and pressing valve core reset the most even akinesia, manually grasp
Move as hand push rod, force valve core of the electromagnetic valve to reset, make vehicle enter on-position, thus protect
Card traffic safety.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of prior art；
Fig. 2 is systematic schematic diagram of the present utility model；
Fig. 3 is the structure principle chart of the braking electromagnetic valve of manual, the electromagnetism dual control in this utility model.
Detailed description of the invention
In conjunction with Fig. 2,3, a kind of underground loader brakes, including oil-in and fuel tank 90 phase
Hydraulic pump 10 even, the pipeline of the oil-out side of hydraulic pump 10 connects high pressure filter 20 and is followed by
To replenishing valve 30, the pressure oil output pipe of replenishing valve 30 arranges brake accumulator 40, pressure
Switch 50, the pressure oil import P of braking electromagnetic valve 80 and the pressure oil output pipe of replenishing valve 30
It is connected, the pressure oil outlet A of braking electromagnetic valve 80 and driving foot brake valves 60, front-rear axle braking
Device 70 is linked in sequence, and described braking electromagnetic valve 80 is electromagnetism two-bit triplet electromagnetic valve, braking electricity
The electricity on hand push rod 87, hand push rod 87 and braking electromagnetic valve 80 it is additionally provided with on magnet valve 80
The place station of magnetic coil push rod 84 independently drive control valve core 83.
This braking electromagnetic valve 80 allows manually to be controlled in the case of dead electricity, when braking electricity
Magnet valve 80 is under Electromagnetic Control state, and hand push rod 87 rests on the initial position of inoperative position.
After emergency stop button is pressed braking electromagnetic valve 80 power-off and by spring promote spool 83 move,
Fluid in front-rear axle brake 70 flows back to fuel tank 90 through driving foot brake valves 60, and vehicle enters
On-position.Running into that emergency stop button is pressed and spool 83 resets the most active
When making, brakes can be manually operated hand push rod 87 forces spool 83 to reset, and makes vehicle
Enter on-position, thus ensure traffic safety.
Fig. 3 gives the structure of the braking electromagnetic valve 80 of concrete hands, electric dual control, described system
Moving electromagnetic valve 80 includes valve body 82, has the valve pocket accommodating spool 83, on valve body 82 in valve body 82
Offer and the oil return inlet T of valve pocket connection, the pressure oil import P being connected with pressure oil and driving
The pressure oil outlet A that foot brake valves 60 is connected, spool 83 one end arranges solenoid push rod 84,
The other end of spool 83 arranges hand push rod 87, and hand push rod 87 is arranged with core with spool 83,
The end connection extending to the hand push rod 87 outside valve body 82 has handlebar 81.Spool 83 He
Hand push rod 87 is two individual components, and simply both abutting ends are relative to each other, only there is a need to
When carrying out Non-follow control, hand push rod 87 is to spool 83 1 side shifting and gives spool 83 with axially
Thrust.
The normal Electromagnetic Control state of spool 83 just will not be often resulted in order to ensure hand push rod 87
Interfere, described valve body 82 supplies between hole wall and the hand push rod 87 that hand push rod 87 passes through
Being provided with position-limiting unit, this position-limiting unit limits hand push rod 87 and is respectively at home position and work
Position.
Concrete position-limiting unit is as it is shown on figure 3, described position-limiting unit includes on hand push rod 87
Hole 871, spaced apart two location, and constitute, with protruding out to position, being positioned at of coordinating at hole 871
Resilient key 86 on valve body 82.This structure is the simplest but also reliable.
Below in conjunction with accompanying drawing, operation principle of the present utility model is described.
During normal vehicle operation, solenoid 50 obtains electric, and location status shown in Fig. 3 manually pushes away
Bar 87 promotes spool 83 to move to left and cut out oil return inlet T, and pressure oil import P exports A with pressure oil
Mouth conducting, hydraulic oil enters bridge brake 70 release through pressure oil import P, pressure oil outlet A
Braking；After emergency stop button is pressed, solenoid 50 dead electricity, spool 83 is at back-moving spring
Move to right under the effect of 88, closing presure oil inlet P, oil return inlet T and pressure oil outlet A conducting,
Fluid in bridge brake 70 exports A through pressure oil, oil return inlet T flows into fuel tank, and vehicle is at bridge
On-position is entered under brake 70 inner spring effect.
When braking electromagnetic valve 80 normally works, hand push rod 87 is in right positioner hole site, figure
Position shown in 3, hand push rod 87 and spool 83 are individual components, do not affect the motion of spool 83
Performance；Press running into emergency stop button, spool 83 reset the most even akinesia time,
Being manually operated handlebar 81 makes hand push rod 87 move to right entrance left positioner hole 871 with elastic
The position that pin 86 cooperates, promotes spool 3 to move to right simultaneously, braking electromagnetic valve 80 forced resetting,
Fluid in bridge brake 70 exports A through pressure oil, oil return inlet T flows into fuel tank, and vehicle is at bridge
Enter on-position under brake 70 inner spring effect, thus ensure traffic safety.
Claims (4)
1. a underground loader brakes, the liquid being connected with fuel tank (90) including oil-in
Press pump (10), the pipeline of the oil-out side of hydraulic pump (10) connects high pressure filter (20)
It is followed by replenishing valve (30), the pressure oil output pipe of replenishing valve (30) arranges braking accumulation of energy
Device (40), pressure switch (50), the pressure oil import P of braking electromagnetic valve (80) and replenishing valve
(30) pressure oil output pipe is connected, the pressure oil outlet A of braking electromagnetic valve (80) and row
Car foot brake valves (60), front-rear axle brake (70) are linked in sequence, it is characterised in that: described
Braking electromagnetic valve (80) be electromagnetism two-bit triplet electromagnetic valve, braking electromagnetic valve also sets on (80)
It is equipped with the electromagnetic wire on hand push rod (87), hand push rod (87) and braking electromagnetic valve (80)
The place station of circle push rod (84) independently drive control valve core (83).
Underground loader brakes the most according to claim 1, it is characterised in that: institute
The braking electromagnetic valve (80) stated includes valve body (82), has receiving spool (83) in valve body (82)
Valve pocket, valve body (82) offers the oil return inlet T with valve pocket connection, is connected with pressure oil
The A mouth that pressure port P is connected with driving foot brake valves (60), spool (83) one end arranges electricity
Magnetic coil push rod (84), the other end of spool (83) arranges hand push rod (87), hand push rod
(87) arrange with core with spool (83), extend to the hand push rod (87) that valve body (82) is outside
End connect have handlebar (81).
Underground loader brakes the most according to claim 2, it is characterised in that: institute
Between the valve body (82) the stated upper hole wall and the hand push rod (87) that supply hand push rod (87) to pass through
Being provided with position-limiting unit, this position-limiting unit limits hand push rod (87) and is respectively at home position and work
Make position.
Underground loader brakes the most according to claim 3, it is characterised in that: institute
The position-limiting unit stated includes upper spaced apart two hole, the location (871) of hand push rod (87), and
With protrude out to position hole (871) place constitute coordinates be positioned at valve body (82) go up resilient key (86).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455048.6U CN205737493U (en) | 2016-05-17 | 2016-05-17 | Underground loader brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455048.6U CN205737493U (en) | 2016-05-17 | 2016-05-17 | Underground loader brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205737493U true CN205737493U (en) | 2016-11-30 |
Family
ID=57364856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620455048.6U Active CN205737493U (en) | 2016-05-17 | 2016-05-17 | Underground loader brakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205737493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107298085A (en) * | 2017-08-07 | 2017-10-27 | 包头市北工机械有限公司 | A kind of normally closed type explosion-proof wet brakes |
-
2016
- 2016-05-17 CN CN201620455048.6U patent/CN205737493U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107298085A (en) * | 2017-08-07 | 2017-10-27 | 包头市北工机械有限公司 | A kind of normally closed type explosion-proof wet brakes |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |