CN201980215U - Auxiliary braking control system for full-hydraulic walking machinery - Google Patents
Auxiliary braking control system for full-hydraulic walking machinery Download PDFInfo
- Publication number
- CN201980215U CN201980215U CN2011200480937U CN201120048093U CN201980215U CN 201980215 U CN201980215 U CN 201980215U CN 2011200480937 U CN2011200480937 U CN 2011200480937U CN 201120048093 U CN201120048093 U CN 201120048093U CN 201980215 U CN201980215 U CN 201980215U
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- control system
- auxiliary braking
- walking machine
- controller
- braking control
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Abstract
The utility model discloses an auxiliary braking control system for full-hydraulic walking machinery, which comprises a controller and a detecting assembly connected with the controller, wherein the detecting assembly is used for detecting system variation when in braking. The controller is connected with at least one of a running motor and a running pump of the walking machinery and is used for outputting a control signal for controlling the discharge capacity of the running motor or/and the running pump according to detecting data of the detecting assembly. The auxiliary braking control system has the advantages that the structure is simple, the cost is low, the braking is flexible, stable, safe and reliable, the response time is short and the service life of a main braking element can be prolonged.
Description
Technical field
The utility model relates to a kind of hydraulic braking control system, relates in particular to a kind of auxiliary braking control system of all-hydraulic walking machine.
Background technology
At present, the hydrostatic brake system of all-hydraulic walking machine mainly contains two kinds of forms:
Form 1: the shoe type braking is adopted in all-hydraulic walking machine braking, and drg is contained on the drive wheel, and when stepping on brake pedal, drg begins braking, simultaneously, the bypass between the driving pump high and low pressure mouth is connected, and throws off the driving of travelling.
Form 2: all-hydraulic walking machine braking is on the basis of adopting the shoe type braking, stack driving pump, motor closed type hydraulic system are as the auxiliary braking system of travelling brake, glancing impact is closed the driving pump swash plate, and pump delivery is zero, and motor does not rotate and participate in synchronously braking.
Yet all there is deficiency in the above-mentioned hydrostatic brake system of all-hydraulic walking machine: wherein, the moment that bypass between the driving pump high and low pressure mouth in the form 1 is closed, connected, hydraulic efficiency pressure system produces compression shock, has a strong impact on the service life of driving pump, motor.In the form 2, at the glancing impact of running at high speed, also can produce the hydraulic efficiency impact problem, braking response time while is longer, has the phenomenon of braking retardation.
The utility model content
The technical problems to be solved in the utility model is: at the technical matters that prior art exists, provide a kind of simple in structure, with low cost, braking soft steady, safe and reliable, response time short, the auxiliary braking control system that can prolong the all-hydraulic walking machine in main brake element service life.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of auxiliary braking control system of all-hydraulic walking machine, comprise controller and link to each other with described controller and be used to detect the detection components of glancing impact system change amount, in the driving motors of described controller and walking machine and the driving pump at least one link to each other and according to the detection data output of detection components in order to the control driving motors or/and the control signal of driving pump discharge capacity.
As further improvement of the utility model:
Described detection components is the pressure sensor that links to each other with Ps mouth in the driving pump.
Also comprise a change-over valve by brake pedal control commutation, described change-over valve links to each other by the fuel tank of Ps mouth in oil circuit and the described driving pump and walking machine, and described pressure sensor is arranged in the described driving pump on the oil circuit between the Ps mouth and described change-over valve.
Described change-over valve links to each other with described brake pedal by a connecting rod.
Also comprise the speed sensor that is used to detect the driving motors rotating speed, described speed sensor links to each other with described controller.
Compared with prior art, advantage of the present utility model is: by the speed-slackening signal of controller analyzing and testing component detection, and the output control signal is controlled driving motors or/and the capacity of pump that travels, can on the output shaft of driving pump, set up reactive torque, reach purpose with the primary brake system Associated brake, auxiliary braking of the present utility model is soft steadily, safe and reliable, can fundamentally solve the hydraulic efficiency impact of glancing impact, prolonged the service life of Hydraulic Elements and braking power element, and because the system response time of this process is extremely short, the phenomenon that can effectively avoid brake system to lag behind; Simultaneously, can also be provided with one links to each other with controller and is used to detect the speed sensor of driving motors rotating speed, the speed signal of controller inbound pacing sensor is also integrated speed-slackening signal and is carried out logic analysis, has optimized whole auxiliary braking system, has effects such as energy keep the engine alive.
Description of drawings
Fig. 1 is a fluid control schematic diagram of the present utility model;
Fig. 2 is electric control theory figure of the present utility model.
Marginal data:
1, brake cylinder; 2, braking change-over valve; 3, brake pedal; 4, connecting rod; 5, change-over valve; 6, fuel tank; 7, brake-pressure oil; 8, driving pump; 9, pressure sensor; 10, control presssure oil; 11, speed sensor; 12, controller; 13, driving motors; 14, solenoid directional control valve; 15, regulate connecting rod; 16, variable oil cylinder.
The specific embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 2, brake cylinder 1, braking change-over valve 2, brake-pressure oil 7, brake pedal 3 and fuel tank 6 constitute the primary brake system of all-hydraulic walking machine.Brake cylinder 1 is contained on the drg of drive wheel, braking change-over valve 2 connects brake cylinder 1, brake-pressure oil 7 and fuel tank 6, when the operator steps on brake pedal 3, braking change-over valve 2 is in the next mode of operation, braking change-over valve 2 is switched to brake-pressure oil 7 in the brake cylinder 1, makes brake cylinder 1 action and drive the main brake element to begin braking.
As depicted in figs. 1 and 2, the auxiliary braking control system of all-hydraulic walking machine of the present utility model, comprise controller 12 and link to each other with controller 12 and be used to detect the detection components of glancing impact system change amount, in the driving motors 13 of controller 12 and walking machine and the driving pump 8 at least one link to each other and according to the detection data output of detection components in order to control driving motors 13 or/and the control signal of driving pump 8 discharge capacities.In the present embodiment, detection components is the pressure sensor 9 that links to each other with Ps mouth in the driving pump 8, and controller 12 is only controlled the discharge capacity of driving motors 13.Analyze the speed-slackening signal that detects by detection components by controller 12, and the discharge capacity that electric current is regulated driving motors 13 or driving pump 8 is optimized in output, can on the output shaft of driving pump 8, set up reactive torque, reach purpose with the primary brake system Associated brake, brake soft steady, safe and reliable, can fundamentally solve the hydraulic efficiency impact of glancing impact, prolonged the service life of Hydraulic Elements and braking power element, because the system response time of this process is extremely short, the phenomenon that can effectively avoid brake system to lag behind.
Further, also be provided with a speed sensor 11 that is used to detect driving motors 13 rotating speeds, speed sensor 11 links to each other with controller 12.But controller 12 inbound pacing sensors 11 detected driving motors 13 tach signals, and integrate pressure signal and carry out logic analysis and export the discharge capacity of optimizing current setting driving motors 13, optimize whole auxiliary braking system, had effects such as energy keep the engine alive.
In the present embodiment, also comprise a change-over valve 5 by brake pedal 3 control commutation, change-over valve 5 links to each other by the fuel tank 6 of Ps mouth in oil circuit and the driving pump 8 and walking machine, and pressure sensor 9 is arranged in the driving pump 8 on the oil circuit between the Ps mouth and change-over valve 5.During concrete enforcement, change-over valve 5 links to each other with brake pedal 3 by a connecting rod 4.
Principle of work: when the operator steps on brake pedal 3, primary brake system generation effect.Brake pedal 3 makes change-over valve 5 work by connecting rod 4 simultaneously, the Ps mouth is connected with fuel tank 6 in the driving pump 8, control presssure oil 10 pressure change, pressure sensor 9 is converted to electric signal with the pressure signal of this variation and flows to controller 12, being built-in with the controller 12 of optimizing retrosequence judges together this electric signal and the signal of integrating speed sensor 11 and analyzes, and output control current signal is to the solenoid directional control valve 14 of driving motors 13, thereby by variable oil cylinder 16 and regulate the discharge capacity that connecting rod 15 is controlled motor 13, concrete control process as shown in Figure 2.When the discharge capacity of regulating driving motors 13, when making the discharge capacity of driving pump 8 not spread on the demand of driving motors 13, the delivery pressure of driving motors 13 increases, on 13 of driving motors, set up reactive torque and stop vehicle ', and set up pressure in driving motors 13 outlet, the kinetic energy of vehicle will be converted into heat energy and be absorbed by the radiator in driving engine and the hydraulic efficiency pressure system and dissipate, and the hydraulic pressure auxiliary braking that travels comes into force.
Detection components in the auxiliary braking control system of all-hydraulic walking machine of the present utility model can also be to detect the displacement pickup of brake pedal 3 displacements, controller 12 receives and judges and analyze the detection signal of displacement pickup, and then the discharge capacity of outgoing current control driving pump 8 or driving motors 13, also can reach above-mentioned same auxiliary braking effect.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should propose, for those skilled in the art, in the improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the auxiliary braking control system of an all-hydraulic walking machine, it is characterized in that: comprise controller (12) and link to each other with described controller (12) and be used to detect the detection components of glancing impact system change amount, in the driving motors (13) of described controller (12) and walking machine and the driving pump (8) at least one link to each other and according to the detection data output of detection components in order to control driving motors (13) or/and the control signal of driving pump (8) discharge capacity.
2. the auxiliary braking control system of all-hydraulic walking machine according to claim 1 is characterized in that: the pressure sensor (9) of described detection components for linking to each other with Ps mouth in the driving pump (8).
3. the auxiliary braking control system of all-hydraulic walking machine according to claim 2, it is characterized in that: also comprise a change-over valve (5) by brake pedal (3) control commutation, described change-over valve (5) links to each other by the fuel tank (6) of Ps mouth in oil circuit and the described driving pump (8) and walking machine, and described pressure sensor (9) is arranged on the oil circuit between middle Ps mouth of described driving pump (8) and the described change-over valve (5).
4. the auxiliary braking control system of all-hydraulic walking machine according to claim 3 is characterized in that: described change-over valve (5) links to each other with described brake pedal (3) by a connecting rod (4).
5. according to the auxiliary braking control system of any described all-hydraulic walking machine in the claim 1 to 4, it is characterized in that: also comprise the speed sensor (11) that is used to detect driving motors (13) rotating speed, described speed sensor (11) links to each other with described controller (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200480937U CN201980215U (en) | 2011-02-25 | 2011-02-25 | Auxiliary braking control system for full-hydraulic walking machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200480937U CN201980215U (en) | 2011-02-25 | 2011-02-25 | Auxiliary braking control system for full-hydraulic walking machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201980215U true CN201980215U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200480937U Expired - Fee Related CN201980215U (en) | 2011-02-25 | 2011-02-25 | Auxiliary braking control system for full-hydraulic walking machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201980215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305004A (en) * | 2020-02-24 | 2020-06-19 | 三一汽车制造有限公司 | Traveling machine, and travel brake system and travel brake method for traveling machine |
| CN113173147A (en) * | 2021-04-19 | 2021-07-27 | 郑州宇通重工有限公司 | Hybrid brake system and hydraulic drive transportation equipment |
-
2011
- 2011-02-25 CN CN2011200480937U patent/CN201980215U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305004A (en) * | 2020-02-24 | 2020-06-19 | 三一汽车制造有限公司 | Traveling machine, and travel brake system and travel brake method for traveling machine |
| CN113173147A (en) * | 2021-04-19 | 2021-07-27 | 郑州宇通重工有限公司 | Hybrid brake system and hydraulic drive transportation equipment |
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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: 20110921 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |