CN211364372U - Self-locking system for lifting of dumper - Google Patents
Self-locking system for lifting of dumper Download PDFInfo
- Publication number
- CN211364372U CN211364372U CN201922176903.6U CN201922176903U CN211364372U CN 211364372 U CN211364372 U CN 211364372U CN 201922176903 U CN201922176903 U CN 201922176903U CN 211364372 U CN211364372 U CN 211364372U
- Authority
- CN
- China
- Prior art keywords
- brake
- valve
- self
- alarm
- travel switch
- 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.)
- Active
Links
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a tipper lifts auto-lock system belongs to tipper maintenance technical field. The utility model comprises a brake air path and a travel switch which are formed by connecting a brake air chamber, a brake relay valve, a hand brake valve and an air cylinder in sequence, wherein the travel switch is arranged on the air path to control the on-off of the air path; an air control electric valve is arranged between the travel switch and the brake relay valve, is connected with a second alarm and acts under the control of air in a brake air path to prompt a self-locking fault; a special-shaped joint is arranged between the hand brake valve and the travel switch, one interface of the special-shaped joint is connected with the travel switch through a normally closed electromagnetic valve to form a lifting brake circuit, and a delay switch is connected to the normally closed electromagnetic valve in series. The utility model discloses can send out the police dispatch newspaper sound always when the auto-lock trouble, reach the purpose of supervising and urging driver safe driving, and the steerable vehicle of time delay switch that sets up short distance when the carriage lifts removes and the removal time, makes the nimble safety of driving process.
Description
Technical Field
The utility model relates to a tipper maintenance technical field, more specifically say, relate to a tipper lifts auto-lock system.
Background
The dump dumper is an important device for transportation and yield preservation of a car carrier, is mainly used for the yield preservation transportation of an industrial production plant, and is easy to collide with pipelines and roads above the dump dumper if the dump dumper runs when lifting a large compartment due to the fact that a gas pipeline and a belt corridor inside the plant cross the roads, and huge hidden dangers are caused. Therefore, the existing dump truck is additionally provided with a large-compartment lifting self-locking device, so that the potential safety hazard caused by direct running without falling of the large compartment due to human negligence is effectively avoided, and finally, a travel switch is replaced by a pressure switch through continuous improvement after use and is installed in a large-compartment lifting hydraulic system of the vehicle.
However, according to the reflection of repair personnel and drivers, the pressure switch has the conditions of overhigh sensitivity and easy damage, often the vehicle is suddenly locked in the driving process, the rear-end collision of the vehicle is caused, and serious potential safety hazards exist; and the pressure switch has oil pressure inside all the time, and the waste of hydraulic oil is easily caused in the process of maintaining and replacing the switch. Meanwhile, no matter a travel switch or a pressure switch is used, once the switch is damaged or a line fails, when the large carriage is jacked up, the normally open electromagnetic valve is not closed any more, the vehicle can normally run under the condition of jacking the large carriage, and accidents are extremely easy to occur if a driver has the lucky psychological violation driving. On the other hand, under some conditions, the dump truck still needs to move in a short distance in a carriage lifting state, and the existing lifting self-locking system cannot meet the requirement.
Through search, the Chinese patent number ZL201120359826.9, the date of the authorized announcement is 7/4/2012, and the name of the invention creation is as follows: the lifting brake interlocking control system of the dump truck comprises a two-position three-way electromagnetic valve, a travel switch and a snap switch which are sequentially connected in series and then connected with a storage battery; one end of a central air passage of the two-position three-way electromagnetic valve is communicated with a vehicle-mounted air source through an air source inlet, and the other end of the central air passage is communicated with air passages at two sides and then communicated with the wheel brake through an air source outlet. According to the application, the interlocking control device is established between the lifting control system and the braking air circuit control system, so that the situation that a carriage can run in a lifting state is avoided when the dump truck works.
However, the application does not consider the situations of trip opening and possible fault of a chain line, and the hidden danger of running of the dump truck when the carriage is lifted still exists; in addition, the dump truck in the application needs to run when the carriage is lifted, the driver presses the momentary switch, and the situation that the driver forgets to release the switch or presses and damages the switch for a long time can occur, so that the dump truck can continuously run when the carriage is lifted.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model aims to overcome prior art, still can normally travel under the condition that the carriage lifted when the tipper auto-lock trouble, have the problem of potential safety hazard, provide a tipper and lift self-locking system, the utility model discloses can inspect the auto-lock trouble, realize the nimble safety of tipper and travel.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a lifting self-locking system of a dumper, which comprises a pneumatic control electric valve, a travel switch, a second alarm, a brake air circuit formed by connecting a brake air chamber, a brake relay valve, a hand brake valve and an air cylinder in sequence; the travel switch controls the on-off of the brake gas circuit, the pneumatic control electric valve is arranged between the travel switch and the brake relay valve and connected with the second alarm, and the pneumatic control electric valve acts under the control of gas in the brake gas circuit and is communicated with the second alarm.
As a further improvement of the utility model, a special-shaped joint is arranged between the travel switch and the hand brake valve, the special-shaped joint is provided with three interfaces, one of the three interfaces is connected with the hand brake valve, and the other interface is directly connected with the travel switch to form a hand brake gas circuit; the other interface is connected to a travel switch through a normally closed solenoid valve to form a lifting brake air path.
As the utility model discloses improve still further, normally closed solenoid valve and time delay switch, power constitute a closed circuit, the time delay switch is closed, normally closed solenoid valve is electrified, becomes normally open by the normally closed, the switch-on of lifting brake gas circuit.
As a further improvement of the utility model, the travel switch is arranged at the front end of the beam of the vehicle and is controlled by the lifting of the large compartment of the vehicle.
As the utility model discloses improve still further, install proximity switch at the big railway carriage or compartment rear portion of vehicle, this proximity switch is connected with first alarm and second alarm, and proximity switch receives the control that the big railway carriage or compartment of vehicle lifted, switches on the return circuit to first alarm and second alarm.
As a further improvement of the utility model, the delay switch uses a Yangpu H3Y-4 or ST6P-4 type delay relay.
As a further improvement of the utility model, the first alarm and the second alarm use ES-626 type alarm buzzer of SIREN HORN.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following apparent effect:
(1) the utility model discloses a self-locking system that lifts of tipper, when the carriage lifts, travel switch action cuts off hand braking gas circuit, lifts to be equipped with normally closed solenoid valve in the braking gas circuit, cuts off this gas circuit all the time, makes the vehicle auto-lock, does not have gas in the braking gas circuit this moment; if air exists in the air path, the self-locking is indicated to be out of order, the vehicle is not braked, the air control electric valve acts under the action of the air, a circuit of the second alarm is connected, and a driver is prompted to timely maintain the self-locking failure of the vehicle. In addition, the approach switch acts when the carriage is lifted, the line of the first alarm is connected, the driver is prompted that the carriage is in a lifting state, the driver can start cautiously, and the driver is effectively prompted to run safely.
(2) The utility model discloses a tipper lifts auto-lock system, normally closed solenoid valve is connected with a time delay switch, and when the vehicle was in the auto-lock state, if the driver operated and made the time delay switch closed, normally closed solenoid valve was electrified, turned from the normally closed to normally open, switched on and lifted the braking gas circuit, made the vehicle realize necessary removal; when the running time reaches the set time of the delay switch, the switch is automatically closed, the normally closed solenoid valve is changed into normally closed, the air circuit is cut off, the vehicle is self-locked again, the misoperation of a driver is avoided, the vehicle continuously moves when the carriage is jacked, and the potential safety hazard is reduced.
(3) The utility model discloses a self-locking system that lifts of tipper mainly reforms transform on the original gas circuit of vehicle, and the transformation process is comparatively simple, and the cost is not high, and is convenient for maintainer to judge trouble and overhaul; in addition, the travel switch used by the system is mechanical, and the emergency braking situation caused by the fact that an air path is closed suddenly when the travel switch is damaged is avoided.
Drawings
FIG. 1 is a schematic diagram of a conventional dump truck lift self-locking system;
fig. 2 is a schematic diagram of a self-lifting and self-locking system of the dump truck of the present invention;
fig. 3 is a schematic view of the lifting self-locking system of the dump truck of the present invention installed on the dump truck.
The reference numerals in the schematic drawings illustrate:
1. a brake chamber; 2. a brake relay valve; 3. a pneumatic control electric valve; 4. a travel switch; 5. a normally closed solenoid valve; 6. a special-shaped joint; 7. a hand brake valve; 8. an air cylinder; 9. a delay switch; 10. a power source; 11. a proximity switch; 12. a first alarm; 13. a second alarm; 14. a normally open solenoid valve.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1
With reference to fig. 2, the lifting self-locking system of the dump truck of the embodiment comprises a brake air chamber 1, a brake relay valve 2, a pneumatic control electric valve 3, a travel switch 4, a normally closed solenoid valve 5, a special-shaped joint 6, a hand brake valve 7 and an air reservoir 8, wherein the brake air chamber 1, the brake relay valve 2, the hand brake valve 7 and the air reservoir 8 are sequentially connected to form a brake air path, the travel switch 4 controls the on-off of the brake air path, the special-shaped joint 6 is arranged between the travel switch 4 and the hand brake valve 7, one of the special-shaped joints 6 is connected with the hand brake valve 7, and the other joint is directly connected with the travel switch 4 to form the hand brake air path; the other port is connected to a travel switch 4 through a normally closed electromagnetic valve 5 to form a lifting brake air passage.
The normally closed electromagnetic valve 5, the delay switch 9 and the power supply 10 form a closed loop, the delay switch 9 uses a Yangpu H3Y-4 type delay relay, the delay switch 9 is closed, the normally closed electromagnetic valve 5 is electrified and is changed from normally closed to normally open, and the lifting brake gas circuit is switched on.
Referring to fig. 3, a proximity switch 11 is installed at the rear part of the large vehicle compartment, the proximity switch 11 is connected with a first alarm 12 and a second alarm 13, the two alarms are both connected to a power supply 10 through the proximity switch 11, and the proximity switch 11 is controlled by the lifting of the large vehicle compartment and is connected with a loop to the first alarm 12 and the second alarm 13.
The travel switch 4 is arranged at the front end of a vehicle girder and is controlled by the lifting of a vehicle large compartment, so that the on-off of the brake air path is controlled, the pneumatic control electric valve 3 is arranged between the travel switch 4 and the brake relay valve 2, the pneumatic control electric valve 3 is connected with the second alarm 13, and the pneumatic control electric valve 3 acts under the control of air in the brake air path and is connected with the second alarm 13. The first alarm device 12 and the second alarm device 13 both use an ES-626 type alarm buzzer of SIREN HORN.
The principle of the lifting self-locking system of the embodiment is as follows:
when the large compartment of the vehicle is kept falling down, the hand brake air passage is communicated, normal starting and braking can be carried out (when braking, the hand brake valve 7 is only needed to be pressed, at the moment, compressed air in the brake air chamber 1 is exhausted into the atmosphere, the air passage of air in the air storage cylinder 8 to the brake air chamber 1 is cut off by the hand brake valve 7, parking braking is realized), at the moment, the proximity switch 11 is disconnected, the circuits of the first alarm 12 and the second alarm 13 are both disconnected, the two alarms do not work, and even if air exists in the air passage, the air control electric valve 3 cannot be operated to cause false alarm.
When the large compartment of the vehicle is jacked up (the hand brake valve 7 is in a braking state), the proximity switch 11 controlled by the large compartment is switched on, the first alarm 12 gives out alarm sound for prohibiting starting of lifting of the compartment, the travel switch 4 acts simultaneously to cut off a hand brake air path and connect a lifting brake circuit, and due to the existence of the normally closed electromagnetic valve 5 in the air path, the air path is always in a disconnected state, so that the vehicle cannot start by self-locking. Under the condition that the self-locking system is intact, no air source exists in the air path, the air control electric valve 3 does not act, the circuit where the second alarm 13 is located is not completely connected, and an alarm sound cannot be given; if the pneumatic control electric valve 3 detects that air exists in the air path, the second alarm 13 is operated to be communicated with a circuit where the second alarm is located, and the self-locking failure alarm sound is sent out.
If the vehicle needs to be moved in a short distance under the normal condition of the self-locking system, the time delay switch 9 can be pressed down to open the normally closed electromagnetic valve 5, the lifting brake air circuit is switched on, the hand brake valve 7 is released at the moment, the whole brake air circuit is switched on, compressed air in the air storage cylinder 8 enters the brake air chamber 1 to release braking, the vehicle can be started normally, the vehicle is automatically switched off after the time (the set time is 8 seconds) set by the time delay switch 9 is reached in the running process, the normally closed electromagnetic valve 5 is closed, the air circuit is cut off, and the vehicle self-locking after the short-distance movement is completed.
It is worth to be noted that the traditional lifting self-locking system is formed by combining a brake gas path formed by connecting a brake gas chamber 1, a brake relay valve 2, a hand brake valve 7, a gas storage cylinder 8 and a normally open electromagnetic valve 14 and a circuit formed by connecting a power supply 10, a travel switch 4 and a first alarm 12 in series, wherein the travel switch 4 is electrically connected with the normally open electromagnetic valve 14 to control the on-off of the normally open electromagnetic valve 14 and further control the on-off of the brake gas path, which is shown in fig. 1.
The principle of this traditional auto-lock system does:
when the large compartment of the vehicle is kept falling, the travel switch 4 is in a disconnected state, the normally open electromagnetic valve 14 is powered off, the air passage from the air storage cylinder 8 to the brake relay valve 2 is kept communicated, and normal starting and braking can be carried out. When braking is needed, only the hand brake valve 7 is pressed, at the moment, compressed air in the brake air chamber 1 is discharged into the atmosphere, and an air path of air in the air storage cylinder 8 to the brake air chamber 1 is cut off by the hand brake valve 7, so that parking braking can be realized.
When the large compartment is jacked up (the hand brake valve 7 is in a braking state), the travel switch 4 is switched on at the moment, the line of the first alarm 12 is switched on, a driver is informed that the large compartment is lifted, and starting is forbidden; meanwhile, the normally open electromagnetic valve 14 is electrified to act by switching on the travel switch 4, the brake relay valve 2 is switched off, and at the moment, the self-locking system can realize automatic braking, so that the vehicle cannot start. The brake relay valve 2 of this self-locking system is always in a cut-off state under the control of the normally open solenoid valve 14, and even if the hand brake valve 7 is released, the brake state cannot be released when the vehicle is lifted.
Compare in traditional auto-lock system, this embodiment has reformed transform on the original gas circuit of vehicle, divide into the hand braking gas circuit and lift the braking gas circuit with the gas circuit through heterotypic joint 6, and the transformation process is comparatively simple, with low costs, and the maintainer of being convenient for judges trouble and overhauls. Besides, the self-locking system can send out alarm sound when the carriage lifts, and also can send out alarm sound when the self-locking system fails to prompt a driver that the self-locking is failed and the driver needs to carefully start and timely maintain.
In addition, the self-locking system of the embodiment can start the vehicle in a carriage lifting state by controlling the delay switch 9 to complete necessary movement, so that a driver can conveniently and flexibly unload the vehicle; when the running time reaches the set time of the delay switch 9, the switch is automatically closed, the normally closed solenoid valve 5 becomes normally closed, the air path is cut off, the vehicle is self-locked again, the misoperation of a driver is avoided, the vehicle continuously moves when the carriage is jacked, and the potential safety hazard is reduced.
Example 2
The dumper lifting safety self-locking alarm system of the embodiment is basically the same as that of the embodiment 1, and is different in that: the delay switch 9 uses a Yangpu ST6P-4 type delay relay.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a tipper lifts auto-lock system, includes that brake chamber (1), braking relay valve (2), hand brake valve (7) and air receiver (8) connect gradually and form a braking gas circuit, its characterized in that: the automatic control system also comprises a pneumatic control electric valve (3), a travel switch (4) and a second alarm (13); the travel switch (4) controls the on-off of the brake air path, the pneumatic control electric valve (3) is arranged between the travel switch (4) and the brake relay valve (2), the pneumatic control electric valve (3) is connected with the second alarm (13), and the pneumatic control electric valve (3) acts under the control of air in the brake air path.
2. The self-dumping truck lifting self-locking system according to claim 1, characterized in that: a special-shaped joint (6) is arranged between the travel switch (4) and the hand brake valve (7), the special-shaped joint (6) is provided with three interfaces, one of the three interfaces is connected with the hand brake valve (7), and the other interface is directly connected with the travel switch (4) to form a hand brake air path; the other interface is connected to a travel switch (4) through a normally closed solenoid valve (5) to form a lifting brake air circuit.
3. The self-dumping truck lifting self-locking system according to claim 2, characterized in that: the normally closed electromagnetic valve (5), the delay switch (9) and the power supply (10) form a closed loop, the delay switch (9) is closed, the normally closed electromagnetic valve (5) is electrified and is changed from normally closed to normally open, and the lifting brake gas circuit is switched on.
4. The self-dumping truck lifting self-locking system according to claim 3, characterized in that: the travel switch (4) is arranged at the front end of a beam of the vehicle and is controlled by the lifting of a large compartment of the vehicle.
5. The self-dumping truck lifting self-locking system according to claim 3 or 4, characterized in that: a proximity switch (11) is installed at the rear part of the large vehicle compartment, the proximity switch (11) is connected with a first alarm (12) and a second alarm (13), and the proximity switch (11) is controlled by the lifting of the large vehicle compartment and is communicated with a loop of the first alarm (12) and the second alarm (13).
6. The self-dumping truck lifting self-locking system according to claim 5, characterized in that: the delay switch (9) uses a Yangpu H3Y-4 or ST6P-4 type delay relay.
7. The self-dumping truck lifting self-locking system according to claim 5, characterized in that: the first alarm (12) and the second alarm (13) use ES-626 type alarm buzzer of SIREN HORN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176903.6U CN211364372U (en) | 2019-12-06 | 2019-12-06 | Self-locking system for lifting of dumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176903.6U CN211364372U (en) | 2019-12-06 | 2019-12-06 | Self-locking system for lifting of dumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211364372U true CN211364372U (en) | 2020-08-28 |
Family
ID=72172933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922176903.6U Active CN211364372U (en) | 2019-12-06 | 2019-12-06 | Self-locking system for lifting of dumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211364372U (en) |
-
2019
- 2019-12-06 CN CN201922176903.6U patent/CN211364372U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103287418A (en) | Automobile automatic emergency auxiliary braking device | |
| US6758536B2 (en) | Braking system for railroad car/semi-tractor combination | |
| CN106274967A (en) | A kind of nothing fire loopback monitor control system of locomotive | |
| CN102381304A (en) | Automatic emergency clutch brake device for automobile | |
| CN113183816A (en) | Battery pack quick-changing and locking system of electric heavy truck | |
| CN211364372U (en) | Self-locking system for lifting of dumper | |
| CN105216772B (en) | Parking and handling interlock system | |
| CN108407789B (en) | Automatic emergency air pressure braking device | |
| CN211075662U (en) | Dumper lifting safety self-locking alarm system | |
| CN201881956U (en) | Misoperation and mulfunction inhibiting device for car hopper | |
| CN205737506U (en) | A kind of oil truck parking interlocked brake system | |
| JP6184045B1 (en) | Parking brake equipment | |
| CN114132243B (en) | Dumper lifting system and method thereof | |
| CN211869346U (en) | Air circuit braking system with automatic braking function | |
| US3432210A (en) | Braking system | |
| CN207128880U (en) | Oil truck linkage control device | |
| CN210241184U (en) | Intelligent control device for emergency cut-off of semitrailer | |
| CN110304032B (en) | Parking control system and method for main trailer | |
| CN201261428Y (en) | Cargo box hoisting alarming control device of self-discharging vehicle | |
| CN214822804U (en) | Carriage lifting safety device of dump truck | |
| CN202080274U (en) | Safety dual-control device for carriage lifting of dump truck | |
| CN215474703U (en) | Lifting and limiting mechanism of dump truck | |
| CN215922160U (en) | Multiple protection parking braking system and vehicle | |
| CN214492877U (en) | Vehicle safety parking device and tank car | |
| CN2087153U (en) | Electromagnetic and pneumatic brake device for trailer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221117 Address after: 243000 Building 9, Incubation Park, 277 Zhongfei Avenue, zhengpugang New District, Maanshan City, Anhui Province Patentee after: MAGANG GROUP LOGISTICS Co.,Ltd. Address before: 243000 Flying Avenue 277, Zhengpugang New Area, Ma'anshan City, Anhui Province Patentee before: Anhui Masteel automobile transportation service Co.,Ltd. |