CN203780509U - Auxiliary braking device for chassis of engineering vehicle - Google Patents
Auxiliary braking device for chassis of engineering vehicle Download PDFInfo
- Publication number
- CN203780509U CN203780509U CN201420073572.8U CN201420073572U CN203780509U CN 203780509 U CN203780509 U CN 203780509U CN 201420073572 U CN201420073572 U CN 201420073572U CN 203780509 U CN203780509 U CN 203780509U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- engineering vehicle
- chassis
- rocker arm
- piston rod
- 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.)
- Expired - Fee Related
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- Braking Systems And Boosters (AREA)
Abstract
The utility model relates to an auxiliary braking device for a chassis of an engineering vehicle. The auxiliary braking device comprises a support, wherein the support is arranged on the chassis and is provided with an oil cylinder, an oil inlet of the oil cylinder faces downwards, the upper end of the support is provided with a switching rocker arm, one end of the switching rocker arm is connected with the tail end of a piston rod I in the oil cylinder, the other end of the switching rocker arm is connected with the right end of a pushing rod, the left end of the pushing rod is connected with the upper end of a rocker arm which is arranged on the chassis, the lower end of the rocker arm is connected with a piston rod II in a valve body, a spring sleeves the piston rod in the oil cylinder and is located between a piston and the oil cylinder, and the oil inlet is provided with an electromagnetic valve. According to the auxiliary braking device for the chassis of the engineering vehicle, disclosed by the utility model, the structure is simple, effective braking of the engineering vehicle when hydraulic power-assisted braking is not provided can be realized on the premise that functions and the theory of an original braking system are not changed, quick braking of the engineering vehicle can be ensured when the engineering vehicle suddenly shuts down or is in long-time waiting as the engineering vehicle works in a dangerous occasion such as a ramp, the braking performance of the engineering vehicle on the ramp is increased, and safety and reliability are realized.
Description
Technical field
The utility model relates to a kind of complemental brake system for engineering vehicle chassis.
Background technology
Existing engineering truck adopts fluid power-mechanical drive as bulldozer or pipe sling etc. are most, in order to alleviate the labour intensity of chaufeur, makes braking in a turn handle Portable power saving, all adopts hydraulic booster.Vehicle is on ramp when operation, and engine load increases, and will cause engine off if operation is improper, flame-out after hydraulic booster ineffective, braking effect is poor.The method adopting at present namely depressed rapidly brake pedal before engine off, and rapidly vehicle was checked by drg latch handle.So still cannot ensure that effective brake exists hidden danger.
Utility model content
For above-mentioned defect, it is a kind of simple in structure that the purpose of this utility model is to provide, at a kind of complemental brake system for engineering vehicle chassis not changing under former brake system function and principle prerequisite, can realize the effective brake of engineering truck in the time there is no hydraulic assisting brake, ensure engineering truck died or brake rapidly while waiting as long for left and right in the dangerous situation work such as ramp, promote the deceleration and stopping performance of engineering truck in ramp, safe and reliable.
The technical scheme that the utility model adopts is for this reason:
Comprise the support being arranged on chassis, oil cylinder is installed on support, the oil inlet of oil cylinder down, support upper end is provided with conversion rocking arm, and conversion rocking arm one end is connected with in-oil cylinder piston rod I end, and the conversion rocking arm other end is connected with push rod right-hand member, push rod left end is connected with the rocking arm upper end being arranged on chassis; rocking arm lower end is connected with the piston rod II in valve body, and in-oil cylinder piston rod I cover has spring between piston and oil cylinder, and described oil inlet place is provided with electromagnetic valve.
Described push rod left end is provided with long slot bore, and described rocking arm upper end is connected with long slot bore by bolt.
The utility model has the advantages that:
1, the utlity model has normally closed function, can provide at any time failure-free braking during standstill for vehicle, and can realize rapidly vehicle effective brake in the time of non-normal flameout, thereby at utmost ensured vehicle and operator's safety.
2, the utility model is direct control brake rocker arm, can not cause the change of mechanical other system, does not affect the function of former brake system, can not change driver's operation custom.
3, the utility model braking force is large, and braking distance is little, and braking time is short, can brake rapidly, by hydraulic coupling control, adjusts and convenience easy to maintenance.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1 is chassis, the 2nd, support, the 3rd, oil cylinder, the 4th, conversion rocking arm, the 5th, piston rod I, the 6th, push rod, the 7th, rocking arm, the 8th, valve body, the 9th, piston rod II, the 10th, spring, the 11st, piston, the 12nd, bolt, the 13rd, brake rocker arm, the 14th, connecting rod, the 15th, lever, the 16th, pull bar, the 17th, brake collar, the 18th, lever connection, the 19th, oil inlet, the 20th, electromagnetic valve.
Detailed description of the invention
A kind of complemental brake system for engineering vehicle chassis, comprise and be arranged on the One On The Chassis support 2, oil cylinder 3 is installed on support 2, the oil inlet of oil cylinder 3 down, support 2 upper ends are provided with conversion Rocker arm 4, conversion Rocker arm 4 one end is connected with piston rod I 5 ends in oil cylinder 3, the conversion Rocker arm 4 other end is connected with push rod 6 right-hand members, push rod 6 left ends be arranged on the One On The Chassis rocking arm 7 upper ends and be connected, rocking arm 7 lower ends are connected with the piston rod II 9 in valve body 8, piston rod I 5 covers in oil cylinder 3 have spring 10 between piston 11 and oil cylinder 3, described oil inlet 19 places are provided with electromagnetic valve 20.
Described push rod 6 left ends are provided with long slot bore, and described rocking arm 7 upper ends are connected with long slot bore by bolt 12.
In the time of vehicle parking or died, oil inlet 19 oil-breaks, spring 10 promotes piston rod I 5 and moves downward, piston rod I 5 upper ends drive push rod 6 to be moved to the left by conversion Rocker arm 4, the piston rod II 9 that push rod 6 left ends promote in valve body 8 by rocking arm 7 moves right, piston rod II 9 promotes brake rocker arm 13 and rotates, brake rocker arm 13 makes lever 15 upwards mention pull bar 16 by connecting rod 14, brake collar 17 is held tightly, thereby reach braking object, lever connection 18 right-hand members are provided with long slot bore, can not drive whole lever connection 18 to move left when rocking arm 7 is braked.
In the time of vehicle launch, oil inlet 19 enters pressure oil, promotes piston rod I 5 upward movements, and piston rod I 5 upper ends drive push rod 6 to move right by conversion Rocker arm 4, make brake collar 17 in releasing orientation, and vehicle can normally be walked.Because push rod 6 left ends have long slot bore, when normal brake application operation, can not drive whole push rod 6 together to left movement, do not affect the normal brake application operation of vehicle in the time of work.
Claims (2)
1. the complemental brake system for engineering vehicle chassis, it is characterized in that, comprise the support being arranged on chassis, oil cylinder is installed on support, the oil inlet of oil cylinder down, support upper end is provided with conversion rocking arm, conversion rocking arm one end is connected with in-oil cylinder piston rod I end, the conversion rocking arm other end is connected with push rod right-hand member, push rod left end is connected with the rocking arm upper end being arranged on chassis; rocking arm lower end is connected with the piston rod II in valve body, and in-oil cylinder piston rod I cover has spring between piston and oil cylinder, and described oil inlet place is provided with electromagnetic valve.
2. a kind of complemental brake system for engineering vehicle chassis according to claim 1, is characterized in that, described push rod left end is provided with long slot bore, and described rocking arm upper end is connected with long slot bore by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073572.8U CN203780509U (en) | 2014-02-20 | 2014-02-20 | Auxiliary braking device for chassis of engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073572.8U CN203780509U (en) | 2014-02-20 | 2014-02-20 | Auxiliary braking device for chassis of engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203780509U true CN203780509U (en) | 2014-08-20 |
Family
ID=51316721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073572.8U Expired - Fee Related CN203780509U (en) | 2014-02-20 | 2014-02-20 | Auxiliary braking device for chassis of engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203780509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217383A (en) * | 2019-06-24 | 2019-09-10 | 陕西飞机工业（集团）有限公司 | A kind of aircraft foot manipulation Nose Wheel Steering rigid control system |
-
2014
- 2014-02-20 CN CN201420073572.8U patent/CN203780509U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217383A (en) * | 2019-06-24 | 2019-09-10 | 陕西飞机工业（集团）有限公司 | A kind of aircraft foot manipulation Nose Wheel Steering rigid control system |
| CN110217383B (en) * | 2019-06-24 | 2023-06-23 | 陕西飞机工业（集团）有限公司 | Hard steering system for steering front wheel by aircraft foot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |