CN206876405U - A kind of device for detecting performance of fork truck energy storing brake system - Google Patents
A kind of device for detecting performance of fork truck energy storing brake system Download PDFInfo
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- CN206876405U CN206876405U CN201720651429.6U CN201720651429U CN206876405U CN 206876405 U CN206876405 U CN 206876405U CN 201720651429 U CN201720651429 U CN 201720651429U CN 206876405 U CN206876405 U CN 206876405U
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Abstract
The utility model discloses a kind of device for detecting performance of fork truck energy storing brake system, including oil supply system and dynamic braking valve to be measured, the dynamic braking valve are connected by fluid pressure line with accumulator, running brake respectively；The port of export of the oil supply system is connected with dynamic braking valve, accumulator, second pressure gauge respectively by four-way valve, and the accumulator is provided with the first pressure table for being used for detecting accumulator internal pressure；The braking mandril of the dynamic braking valve is connected by bearing pin with depression bar, and braking maneuver is realized by the braking mandril for operating depression bar propulsion power brake valve；The running brake is arranged on brake hub.The present apparatus can not only detect whether accumulator, dynamic braking valve and connection fluid pressure line have the oily phenomenon of dew simultaneously, moreover it is possible to detect accumulator, dynamic braking valve in let out situation, and check whether running brake has whether clamping stagnation, brake cylinder have the failures such as leakage.
Description
Technical field
It the utility model is related to fork truck energy storing brake system, and in particular to a kind of performance detection of fork truck energy storing brake system
Device.
Background technology
The service braking system of fork truck is mainly used in slowing down during fork truck traveling, and row of the control fork truck in descending
Sail speed.Security when fork truck travels, depend greatly on the reliability of brakes.By fork truck tonnage not
Together, below 3.5t fork trucks service braking system is mainly made up of master cylinder, brake, brake treadle mechanism, is stepped on braking and is stepped on
During plate, the brake fluid in master cylinder is sent to left and right brake wheel cylinder by brake pipe in the presence of piston, with certain pressure and pushed away
The piston of dynamic wheel cylinder, makes it be moved to both sides, so as to promote shoe brake to compress brake hub, produces braking action.And 5-10t is pitched
Car is because from great, braking distance length, to fully ensure that security, current widely used full hydraulic power brake system, this is
System is mainly made up of dynamic braking valve, running brake, accumulator and brake treadle mechanism.The great advantage of the system is：
Accumulator is introduced as auxiliary safety device, when hydraulic pump damage or engine misses, accumulator supplies the pressure oil of storage
Emergency power source is served as to system, system pressure is maintained within a period of time, guarantee system can still implement brake hard, avoid oil
Danger when source is interrupted suddenly caused by brake failure, so as to ensure that the security of complete machine.
In view of non-muscular energy braking system part is more, component capabilities matching and self performance reliability are particularly important, special
It is not the dynamic braking valve and accumulator as safety device, its own establishes deficiency and pressure with the presence or absence of leakage, pressure
Phenomena such as slow is established, the key project checked before being entrucking.Need to establish the performance detection stand of brake component for this, with
Realize to accumulator oil-out pressure and the test of stable output pressure number and the brake pressure test of dynamic braking valve and interior leakage
Judge, so as to pick out unqualified part, improve the test run percent of pass of vehicle.In addition, by the comprehensive analysis to unqualified part, will have
Help the technological improvement of product.
Utility model content
The purpose of this utility model is to provide a kind of device for detecting performance of fork truck energy storing brake system, realizes and fork truck is stored
The performance of accumulator, dynamic braking valve and running brake in energy brakes is tested, and complies with vehicle needs.
The technical solution of the utility model is as follows：
A kind of device for detecting performance of fork truck energy storing brake system, including oil supply system and dynamic braking valve to be measured, institute
Dynamic braking valve is stated to be connected with accumulator, running brake by fluid pressure line respectively；The port of export of the oil supply system passes through
Four-way valve is connected with dynamic braking valve, accumulator, second pressure gauge respectively, and the accumulator, which is provided with, to be used to detect in accumulator
The first pressure table of portion's pressure；The braking mandril of the dynamic braking valve is connected by bearing pin with depression bar, is pushed away by operating depression bar
The braking mandril of dynamic dynamic braking valve realizes braking maneuver；The running brake is arranged on brake hub.
Further scheme, the accumulator are provided with pressure alarm.
Further scheme, the oil supply system include hydraulic oil container and motor pump group, the oil outlet end of the motor pump group according to
Secondary to be connected by solenoid directional control valve, check valve with the oil inlet of described four-way valve, the oil inlet end of the check valve passes through safety
Valve is connected with hydraulic oil container；Be provided with oil adsorption filter between hydraulic oil container and the motor pump group, safety valve and hydraulic oil container it
Between be provided with oil return cleaner.
Further scheme, the accumulator are arranged on chassis, and the dynamic braking valve is fixed by brake valve mounting bracket
On chassis；Depression bar support is installed with the chassis, the bottom of the depression bar is connected on depression bar support by bearing pin.
Further scheme, the top of the depression bar are arranged with sheath.
Further scheme, the running brake are installed with the top of fuel reserve tank, the service brake by mounting bracket
Locking nut and the method being connected on brake hub are passed through by spline axis connection, the end of the splined shaft between device and brake hub
Lock set fastens between orchid.
Further scheme, the outer wall of the locking nut are symmetrically threaded with transmission rod；On the brake hub axially
Offer the peep hole for observing running brake.
Further scheme, the top of the fuel reserve tank offer oil inlet, and bottom is provided with purge cock.
Further scheme, between the dynamic braking valve and accumulator connected by high-pressure rubber pipe, brake valve and driving
It is by braking fastener for connection between the brake cylinder of brake.
Detection means of the present utility model, possesses advantages below：
1st, the present apparatus can not only detect whether accumulator, dynamic braking valve and connection fluid pressure line have the oily phenomenon of dew simultaneously,
Accumulator can also be detected, the interior of dynamic braking valve lets out situation, and check whether running brake have clamping stagnation, brake cylinder
There are the failures such as leakage.
2nd, easy to install by test specimen in the present apparatus, testing efficiency is high；And test parameter is complete, pressure, leakage situation
It can accurately hold.
3rd, indicate that the pressure of accumulator establishes situation by the first pressure table being located on accumulator in the present apparatus, simultaneously
Observing system motor pump group is additionally operable in the case of shutdown, during carrying out auxiliary braking using accumulator, braking number and pressure
Relation between power release, for judging accumulator auxiliary braking performance.
4th, the present apparatus filters between hydraulic oil container and motor pump group provided with oil adsorption filter to hydraulic oil, ensures to supply
The pressure luboil cleanness given, prevent because oily pollution destroys the hydraulic units such as dynamic braking valve, accumulator, and then influence detection essence
Degree.
5th, brake pedal operating mode is stepped on vehicle to simulate by operating depression bar, so as to the breaking top of propulsion power brake valve
Bar, realize damped condition；Because the lever ratio of depression bar reaches 7.26, manpower can light steering maneuver brake valve braking maneuver.
Brief description of the drawings
Fig. 1 is hydraulic schematic diagram of the present utility model；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the scheme of installation of the accumulator and dynamic braking valve in the utility model；
Fig. 4 is the scheme of installation of the running brake in the utility model.
In figure：1- hydraulic oil containers, 2- oil return cleaners, 3- safety valves, 4- accumulators, 5- pressure alarms, 6- first are pressed
Power table, 7- dynamic braking valves, 8- oil adsorption filters, 9- motor pump groups, 10- solenoid directional control valves, 11- check valves, 12- second pressures
Table, 13- four-way valves, 14- running brakes, 15- chassis, 16- brake valve mounting brackets, 17- depression bar supports, 18- depression bars, 19- shields
Cover, 20- fuel reserve tanks, 21- brake hubs, 22- mounting brackets, covered between 23- method orchids, 24- transmission rods, 25- locking nuts, 26- flowers
Key axle, 27- oil supply systems, 28- high-pressure rubber pipes, 29- braking steel pipes.
Embodiment
As Figure 1-4, a kind of device for detecting performance of fork truck energy storing brake system, including oil supply system 27 and to be measured
Dynamic braking valve 7, the dynamic braking valve 7 are connected by fluid pressure line with accumulator 4, running brake 14 respectively；The confession
The port of export of oil system 27 is connected with dynamic braking valve 7, accumulator 4, second pressure gauge 12 respectively by four-way valve 13, the storage
Energy device 4 is provided with the first pressure table 6 for being used for detecting accumulator internal pressure；The braking mandril of the dynamic braking valve 7 passes through
Bearing pin is connected with depression bar 18, and braking maneuver is realized by the braking mandril for operating the propulsion power brake valve 7 of depression bar 18；The driving
Brake 14 is arranged on brake hub 21.
Further scheme, the accumulator 4 are provided with pressure alarm 5.
Further scheme, as shown in figure 1, oil supply system 27 includes hydraulic oil container 1 and motor pump group 9, the motor pump group 9
Oil outlet end pass sequentially through solenoid directional control valve 10, check valve 11 is connected with the oil inlet of described four-way valve 13, the check valve
11 oil inlet end is connected by safety valve 3 with hydraulic oil container 1；Oil suction filtering is provided between the hydraulic oil container 1 and motor pump group 9
Device 8, oil return cleaner 2 is provided between safety valve 3 and hydraulic oil container 1.
Further scheme, as shown in figure 3, accumulator 4 is arranged on chassis 15, the dynamic braking valve 7 passes through brake valve
Mounting bracket 16 is installed on chassis 15；Depression bar support 17 is installed with the chassis 15, the bottom of the depression bar 18 passes through bearing pin
It is connected on depression bar support 17.
Further scheme, the top of the depression bar 18 are arranged with sheath 19, and the sheath 19 of quality of rubber materials can improve operation
Comfortableness.
Further scheme, as shown in figure 4, running brake 14 is installed with the top of fuel reserve tank 20 by mounting bracket 22,
Connected between the running brake 14 and brake hub 21 by splined shaft 26, the end of the splined shaft 26 passes through locking nut
Set 23 is locked between 25 and the method orchid that is connected on brake hub 21.Prevent flange spline housing 23 from producing axle together with brake hub 21
To slip.
Further scheme, the outer wall of the locking nut 25 are symmetrically threaded with transmission rod 24；The brake hub 21
Upper axial direction offers the peep hole for observing running brake 14.It is dynamic that the inside of running brake 14 is observed by the peep hole
Make, check whether running brake 14 has whether clamping stagnation, brake cylinder there are the failures such as leakage；
Because the size of locking nut 25 is larger, to realize smoothly locking, spy is machined with the outer wall of locking nut 25
Symmetrical screwed hole, transmission rod 24 is installed, screwing or unscrewing for locking nut 25, side can be achieved by operating transmission rod 24
Operating personnel's manual teardown.
Further scheme, the top of the fuel reserve tank 20 offer oil inlet, and bottom is provided with purge cock.
Further scheme, between the dynamic braking valve 7 and accumulator 4 connected by high-pressure rubber pipe 28, brake valve 7 with
It is to be connected by braking steel pipe 29 between the brake cylinder of running brake 14.
Oil supply system 27 is used for two-stage system pressure setting in the utility model, to meet the accumulation of energy of different pressures grade
Device, brake valve testing demand, without interim regulating system pressure.
Accumulator 4 is used for pressure store oil, implements the brake hard under catastrophic failure.
Pressure alarm 5 is used to simulate vehicle pressure alarm function, when the pressure inside accumulator 4 establishes not up to standard,
Warning function is provided.
First pressure table 6 is used to indicate that the pressure of accumulator 4 establishes situation, while exists for observing system motor pump group 9
In the case of shutdown, during carrying out auxiliary braking using accumulator 4, the relation between number and pressure release is braked, for sentencing
Determine accumulator auxiliary braking performance.Second pressure gauge 12 is used to indicate system pressure, and four-way valve 13 is used for the shunting of oil circuit, driving
Brake is used to simulate vehicle service brake operating mode.
By test specimen before the conduct entrucking of dynamic braking valve 7, for simulating vehicle dynamic braking action, while brake valve is detected
Brake pressure and internal leakage, ensure that entrucking brake valve is qualified products.
Oil adsorption filter 8 is used for filtration system hydraulic oil, ensures the pressure luboil cleanness of supply, prevents because oily pollution is broken
The hydraulic units such as bad dynamic braking valve 7, accumulator 4, and then influence accuracy of detection.
Motor pump group 9 is made up of motor and hydraulic pump, for providing a system to pressure oil；
Solenoid directional control valve 10 flows to for control system pressure oil, realizes two-stage system pressure setting.Check valve 11 acts on
It is to prevent pressure oil from flowing back, the pressurize for system under the shutdown situation of motor pump group 9.
The structure of chassis 15 is the installation form for simulating accumulator 4 on vehicle, while the through hole for passing through its bottom plate
It is whole on the platform of hydraulic power unit.Depression bar support 17 is connected by screw with chassis 15, the bottom end of depression bar 18
Portion is formed by bearing pin and depression bar support 17 and connected, and depression bar 18 is further through bearing pin and the braking mandril of dynamic braking valve 7, the company of being formed
Connect.By operating depression bar 18, simulate and brake pedal operating mode is stepped on vehicle, the braking mandril of propulsion power brake valve 7, realize system
Start building condition；Because the lever ratio of depression bar 18 reaches 7.26, manpower can light steering maneuver brake valve 7 braking maneuver.
Fuel reserve tank 20 is designed to body structure, and purge cock is arranged at bottom.During actual tests, such as brake steel pipe 29 and connect
Oil leak situation occurs for the brake cylinder of position or running brake 14, and the fluid of leakage can be flowed directly into fuel reserve tank 20, real
Now reclaim, anti-oil pollution.In addition, fuel reserve tank 20 installs the installation branch of running brake 14 and brake hub 21 for supporting simultaneously
Frame 22, described running brake 14 simulate vehicle actual assembled mode with brake hub 21, are made driving by braking steel pipe 29
The brake cylinder of dynamic device 14 is connected with the braking output Br mouths of dynamic braking valve 7, realizes braking function, auxiliary detection dynamic braking
The pressure of valve 7 is established and leakage situation.
The specific detection process of this detection means is as follows：
（1）According to detection needs, installation subject dynamic braking valve 7, accumulator 4, running brake 14；
（2）Connect dynamic braking valve 7 and the fluid pressure line between accumulator 4, running brake 14；
（3）Motor pump group 9 is opened, now the attonity of solenoid directional control valve 10, hydraulic oil directly pass through solenoid directional control valve 10
Middle position flows back to hydraulic oil container;
（4）Start solenoid directional control valve 10, now hydraulic oil is by by the working position of solenoid directional control valve 10, successively through check valve
11st, four-way valve 13, into the P mouths of dynamic braking valve 7, then flowed back to by its N mouth in hydraulic oil container 1；
（5）Continuous braking maneuver is implemented by depression bar 18, hydraulic oil will be successively through check valve 11, four-way valve 13, from accumulation of energy
The P mouths of device 4 enter accumulator 4 and carry out pressurising, by observing first pressure table 6, make its pressurising to designated value；Hydraulic oil enters simultaneously
Enter and braked in running brake 14；It can check that accumulator 4, dynamic braking valve 7 and each fluid pressure line of system connect accordingly
Head at have oil-free leakage situation, if any should fastening in time processing, repeat braking maneuver after processing, pass through observation first press
Power table 6, arrive accumulator 4 and specify pressurising value；
（6）After motor pump group 9 is stopped, continuous braking maneuver is implemented by depression bar 18, the hydraulic oil in accumulator 4 leads to
Cross in the entrance running brake 14 of dynamic braking valve 7 and braked；The accumulator pressure of 4 one minutes is observed by first pressure table 6
Drop situation, is contrasted with setting value, judges dynamic braking valve 7 with the presence or absence of obvious interior leakage, the voltage drop value of such as 1 minute, which is less than, to be set
Definite value, then illustrate dynamic braking valve 7 without obvious internal leakage, it is on the contrary then unqualified；Pressurize 10 minutes again, observe the number of pressure drop
Value, compared with setting value, such as total pressure drop values are less than the setting value of pressure drop in 10 minutes, judge dynamic braking valve 7
Overall internal leakage is up to standard, otherwise judges that dynamic braking valve 7 is unqualified；
（7）As the 7 overall internal leakage of dynamic braking valve is up to standard, then motor pump group 9 is opened, it is dynamic to implement braking using depression bar 18
Make, by the pressurising of accumulator 4 to designated value；Motor pump group 9 is then shut off, implements braking maneuver using depression bar 18, continuously brakes five
It is secondary, pressure is observed by first pressure table 6 and discharges numerical value, is contrasted with setting value, such as 5 pressure drop values all in setting
In the range of acceptance value, then judge that accumulator 4 is qualified, otherwise judge that accumulator 4 is unqualified；
（8）In braking procedure, by the peep hole on the surface of brake hub 21, the internal actions of running brake 14 are observed, are checked
Whether running brake 14 has whether clamping stagnation, brake cylinder have the failures such as leakage；
（9）After the completion of detection, dismantle by test specimen, implement entrucking.
Above example is not limited only to the scope of protection of the utility model, all to be based on basic thought of the present utility model
And modify or what is changed belongs to the scope of protection of the utility model.
Claims (9)
1. a kind of device for detecting performance of fork truck energy storing brake system, including oil supply system（27）With dynamic braking valve to be measured
（7）, the dynamic braking valve（7）Pass through fluid pressure line and accumulator respectively（4）, running brake（14）Connection；Its feature exists
In：The oil supply system（27）The port of export pass through four-way valve（13）Respectively with dynamic braking valve（7）, accumulator（4）, second pressure
Power table（12）Connection, the accumulator（4）It is provided with the first pressure table for being used for detecting accumulator internal pressure（6）；It is described dynamic
Dynamic braking valve（7）Braking mandril pass through bearing pin and depression bar（18）Connection, by operating depression bar（18）Propulsion power brake valve（7）
Braking mandril realize braking maneuver；The running brake（14）Installed in brake hub（21）On.
A kind of 2. device for detecting performance of fork truck energy storing brake system according to claim 1, it is characterised in that：It is described
Accumulator（4）It is provided with pressure alarm（5）.
A kind of 3. device for detecting performance of fork truck energy storing brake system according to claim 1, it is characterised in that：It is described
Oil supply system（27）Including hydraulic oil container（1）With motor pump group（9）, the motor pump group（9）Oil outlet end pass sequentially through electromagnetism
Reversal valve（10）, check valve（11）With described four-way valve（13）Oil inlet connection, the check valve（11）Oil inlet end lead to
Cross safety valve（3）With hydraulic oil container（1）Connection；The hydraulic oil container（1）With motor pump group（9）Between be provided with oil adsorption filter
（8）, safety valve（3）With hydraulic oil container（1）Between be provided with oil return cleaner（2）.
A kind of 4. device for detecting performance of fork truck energy storing brake system according to claim 1, it is characterised in that：It is described
Accumulator（4）Installed in chassis（15）On, the dynamic braking valve（7）Pass through brake valve mounting bracket（16）It is installed in chassis（15）
On；The chassis（15）On be installed with depression bar support（17）, the depression bar（18）Bottom depression bar support is connected to by bearing pin
（17）On.
A kind of 5. device for detecting performance of fork truck energy storing brake system according to claim 4, it is characterised in that：It is described
Depression bar（18）Top be arranged with sheath（19）.
A kind of 6. device for detecting performance of fork truck energy storing brake system according to claim 1, it is characterised in that：It is described
Running brake（14）Pass through mounting bracket（22）It is installed with fuel reserve tank（20）Top, the running brake（14）With braking
Hub（21）Between pass through splined shaft（26）Connection, the splined shaft（26）End pass through locking nut（25）With being connected to braking
Hub（21）On method orchid between cover（23）It is locked.
A kind of 7. device for detecting performance of fork truck energy storing brake system according to claim 6, it is characterised in that：It is described
Locking nut（25）Outer wall be symmetrically threaded with transmission rod（24）；The brake hub（21）Upper axial direction is offered for seeing
Examine running brake（14）Peep hole.
A kind of 8. device for detecting performance of fork truck energy storing brake system according to claim 6, it is characterised in that：It is described
Fuel reserve tank（20）Top offer oil inlet, bottom is provided with purge cock.
A kind of 9. device for detecting performance of fork truck energy storing brake system according to claim 1, it is characterised in that：It is described
Dynamic braking valve（7）With accumulator（4）Between be to pass through high-pressure rubber pipe（28）Connection, brake valve（7）With running brake（14）
Brake cylinder between be by braking steel pipe（29）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651429.6U CN206876405U (en) | 2017-06-06 | 2017-06-06 | A kind of device for detecting performance of fork truck energy storing brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651429.6U CN206876405U (en) | 2017-06-06 | 2017-06-06 | A kind of device for detecting performance of fork truck energy storing brake system |
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| Publication Number | Publication Date |
|---|---|
| CN206876405U true CN206876405U (en) | 2018-01-12 |
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ID=61338098
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720651429.6U Active CN206876405U (en) | 2017-06-06 | 2017-06-06 | A kind of device for detecting performance of fork truck energy storing brake system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063717A (en) * | 2017-06-06 | 2017-08-18 | 安徽合力股份有限公司 | A kind of device for detecting performance of fork truck energy storing brake system |
-
2017
- 2017-06-06 CN CN201720651429.6U patent/CN206876405U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063717A (en) * | 2017-06-06 | 2017-08-18 | 安徽合力股份有限公司 | A kind of device for detecting performance of fork truck energy storing brake system |
| CN107063717B (en) * | 2017-06-06 | 2023-08-04 | 安徽合力股份有限公司 | Performance detection device of forklift energy storage braking system |
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