CN204674433U - The hoisting system of dumping car - Google Patents
The hoisting system of dumping car Download PDFInfo
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- CN204674433U CN204674433U CN201520410659.4U CN201520410659U CN204674433U CN 204674433 U CN204674433 U CN 204674433U CN 201520410659 U CN201520410659 U CN 201520410659U CN 204674433 U CN204674433 U CN 204674433U
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Abstract
本实用新型公开了一种自卸车的举升系统，包括控制单元、驱动单元及举升单元，所述驱动单元包括取力器及气源，所述气源通过气路连接取力器的输入端，所述控制单元连接于所述气路上，用于控制气路的通路与断路；所述举升单元包括液压油箱、齿轮泵、举升缸及三位四通阀，所述齿轮泵的动力输入端连接所述取力器，所述齿轮泵的输入端连接所述三位四通阀的第一输入开口，与所述第一输入开口相对应的第二输出开口连接所述举升缸的输入端，所述举升缸的输出端连接所述三位四通阀的第二输入开口，与所述第二输入开口相对应的第二输出开口连接所述液压油箱。本实用新型提供的自卸车的举升系统，结构简单、实用、可靠、经济、安全。
The utility model discloses a lifting system of a dump truck, comprising a control unit, a driving unit and a lifting unit, the driving unit includes a power take-off and an air source, and the air source is connected to the input of the power take-off through an air circuit end, the control unit is connected to the air circuit to control the passage and disconnection of the air circuit; the lifting unit includes a hydraulic oil tank, a gear pump, a lifting cylinder and a three-position four-way valve. The power input end is connected to the power take-off, the input end of the gear pump is connected to the first input opening of the three-position four-way valve, and the second output opening corresponding to the first input opening is connected to the lift The input end of the cylinder and the output end of the lift cylinder are connected to the second input opening of the three-position four-way valve, and the second output opening corresponding to the second input opening is connected to the hydraulic oil tank. The lifting system of the dump truck provided by the utility model has the advantages of simple structure, practicality, reliability, economy and safety.
Description
技术领域technical field
本实用新型涉及汽车制造技术领域，尤其涉及一种自卸车的举升系统。The utility model relates to the technical field of automobile manufacturing, in particular to a lifting system of a dump truck.
背景技术Background technique
目前工程自卸车货箱举升控制系统有三种举升的方式，第一是机械式液压举升，第二种是电控液压举升，第三种是气控液压举升，其中第一种及第二种的优点在于结构简单、安装管路少、维修简便，但是其容易造成自举升并且货箱靠自重下降，下降速度不可控、冲击力大，另外回油备压太高，过高的系统备压可能将空货箱顶起，容易造成安全事故；而第三种气控液压举升的气控阀成本较高、控制管路需经底盘到驾驶室安装管路复杂、维修难度大。此外，现有的举升报警电路多采用行程接近开关，由于工程车作业环境恶劣行程开关报警不准或失效。At present, there are three lifting methods for the lifting control system of the cargo box of the engineering dump truck. The first is mechanical hydraulic lifting, the second is electronically controlled hydraulic lifting, and the third is air-controlled hydraulic lifting. The advantages of the second type are simple structure, fewer installation pipelines, and easy maintenance, but it is easy to cause self-lifting and the cargo box falls by its own weight, the descending speed is uncontrollable, the impact force is large, and the oil return backup pressure is too high, too high. High system backup pressure may lift up the empty cargo container, which is likely to cause safety accidents; while the third type of air-controlled hydraulic lift has a high cost of air-controlled valves, and the control pipeline needs to be installed from the chassis to the cab. High difficulty. In addition, most of the existing lift alarm circuits use travel proximity switches. Due to the harsh working environment of engineering vehicles, the travel switch alarms are inaccurate or invalid.
实用新型内容Utility model content
本实用新型所要解决的技术问题是：提供一种更安全、更可靠的自卸车的举升系统。The technical problem to be solved by the utility model is to provide a safer and more reliable lifting system for dump trucks.
为了解决上述技术问题，本实用新型采用的技术方案为：提供一种自卸车的举升系统，包括控制单元、驱动单元及举升单元；In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: to provide a lifting system of a dump truck, including a control unit, a driving unit and a lifting unit;
所述驱动单元包括取力器及气源，所述气源通过气路连接取力器的输入端，所述控制单元连接于所述气路上，用于控制气路的通路与断路；The drive unit includes a power take-off and an air source, the air source is connected to the input end of the power take-off through an air circuit, and the control unit is connected to the air circuit to control the passage and disconnection of the air circuit;
所述举升单元包括液压油箱、齿轮泵、举升缸及三位四通阀，所述齿轮泵的动力输入端连接所述取力器，所述齿轮泵的输入端连接所述三位四通阀的第一输入开口，与所述第一输入开口相对应的第二输出开口连接所述举升缸的输入端，所述举升缸的输出端连接所述三位四通阀的第二输入开口，与所述第二输入开口相对应的第二输出开口连接所述液压油箱。The lifting unit includes a hydraulic oil tank, a gear pump, a lifting cylinder and a three-position four-way valve. The power input end of the gear pump is connected to the power take-off, and the input end of the gear pump is connected to the three-position four-way valve. The first input opening of the through valve, the second output opening corresponding to the first input opening is connected to the input end of the lift cylinder, and the output end of the lift cylinder is connected to the first three-position four-way valve. Two input openings, and a second output opening corresponding to the second input opening is connected to the hydraulic oil tank.
进一步地，所述控制单元包括控制电路及蜂鸣器，所述蜂鸣器电连接于所述控制电路中。Further, the control unit includes a control circuit and a buzzer, and the buzzer is electrically connected to the control circuit.
进一步地，所述控制单元包括开关及取力器电磁阀，所述取力器电磁阀连接于所述气路上。Further, the control unit includes a switch and a power take-off solenoid valve, and the power take-off solenoid valve is connected to the air circuit.
进一步地，所述开关为翘板开关。Further, the switch is a rocker switch.
进一步地，所述第一输入开口及第四输出开口与液压油箱之间油路上连接有限位阀。Further, a limit valve is connected on the oil line between the first input opening and the fourth output opening and the hydraulic oil tank.
本实用新型的有益效果在于：本实用新型自卸车的举升系统，通过控制单元实现驱动单元工作气路的通断，以此实现驱动单元的动力的输出使其控制齿轮泵以最终实现举升缸的升降控制，本实用新型采用控制单元与气路相结合的方式，使得该自卸车的举升系统更安全、更可靠。The beneficial effect of the utility model is that: the lifting system of the dump truck of the utility model realizes the on-off of the working air circuit of the drive unit through the control unit, so as to realize the power output of the drive unit to control the gear pump to finally realize the lift For the lifting control of the cylinder, the utility model adopts the combination of the control unit and the air circuit, which makes the lifting system of the dump truck safer and more reliable.
附图说明Description of drawings
图1为本实用新型实施例的电控气液压举升系统原理图。Fig. 1 is a schematic diagram of an electronically controlled air-hydraulic lifting system according to an embodiment of the present invention.
标号说明：Label description:
1、控制单元；11、蜂鸣器；12、开关；13、取力器电磁阀；2、驱动单元；21、气源；22、取力器；23、电机；3、举升单元；31、液压油箱；32、齿轮泵；33、举升缸；34、三位四通阀；35、限位阀。1. Control unit; 11. Buzzer; 12. Switch; 13. Power take-off solenoid valve; 2. Drive unit; 21. Air source; 22. Power take-off; 23. Motor; 3. Lifting unit; 31 , hydraulic oil tank; 32, gear pump; 33, lift cylinder; 34, three-position four-way valve; 35, limit valve.
具体实施方式Detailed ways
为详细说明本实用新型的技术内容、所实现目的及效果，以下结合实施方式并配合附图详予说明。In order to describe the technical content, the achieved purpose and the effect of the present utility model in detail, the following will be described in detail in combination with the embodiments and accompanying drawings.
本实用新型最关键的构思在于：本实用新型包括控制单元1、驱动单元2及举升单元3，控制单元1控制驱动单元2的气路的通断，驱动单元2为举升单元3提供动力，本实用新型自卸车的举升系统更安全、更可靠。The most critical idea of the utility model is: the utility model includes a control unit 1, a drive unit 2 and a lifting unit 3, the control unit 1 controls the on-off of the gas path of the drive unit 2, and the drive unit 2 provides power for the lift unit 3 , The lifting system of the dump truck of the utility model is safer and more reliable.
请参阅图1，本实施例自卸车的举升系统，包括控制单元1、驱动单元2及举升单元3；Please refer to Fig. 1, the lifting system of the dump truck in this embodiment includes a control unit 1, a driving unit 2 and a lifting unit 3;
所述驱动单元2包括取力器22及气源21，所述气源21通过气路连接取力器22的输入端，取力器22还连接电机23，所述控制单元1连接于所述气路上，用于控制气路的通路与断路；The drive unit 2 includes a power take-off 22 and an air source 21, the air source 21 is connected to the input end of the power take-off 22 through an air circuit, the power take-off 22 is also connected to a motor 23, and the control unit 1 is connected to the The air circuit is used to control the passage and break of the air circuit;
所述举升单元3包括液压油箱31、齿轮泵32、举升缸33及三位四通阀34，所述齿轮泵32的动力输入端连接所述取力器22，所述齿轮泵32的输入端连接所述三位四通阀的第一输入开口，与所述第一输入开口相对应的第二输出开口连接所述举升缸33的输入端，所述举升缸33的输出端连接所述三位四通阀的第二输入开口，与所述第二输入开口相对应的第二输出开口连接所述液压油箱31。The lifting unit 3 includes a hydraulic oil tank 31, a gear pump 32, a lifting cylinder 33 and a three-position four-way valve 34. The power input end of the gear pump 32 is connected to the power take-off 22, and the gear pump 32 The input end is connected to the first input opening of the three-position four-way valve, the second output opening corresponding to the first input opening is connected to the input end of the lifting cylinder 33, and the output end of the lifting cylinder 33 The second input opening of the three-position four-way valve is connected, and the second output opening corresponding to the second input opening is connected to the hydraulic oil tank 31 .
从上述描述可知，本实用新型的有益效果在于：本实用新型自卸车的举升系统，通过控制单元1实现驱动单元2工作气路的通断，以此实现驱动单元2的动力的输出使其控制齿轮泵32以最终实现举升缸33的升降控制，本实用新型采用控制单元1与气路相结合的方式，使得该自卸车的举升系统更安全、更可靠。此外，如图所示，本实施例举升单元3中三位四通阀34包括中停位置，中停位置位于中间部分，左边对应上升而右边对应下降。It can be seen from the above description that the beneficial effect of the utility model lies in that the lifting system of the dump truck of the utility model realizes the on-off of the working gas path of the drive unit 2 through the control unit 1, so as to realize the power output of the drive unit 2 to make it Control the gear pump 32 to finally realize the lifting control of the lifting cylinder 33. The utility model adopts the combination of the control unit 1 and the air circuit, which makes the lifting system of the dump truck safer and more reliable. In addition, as shown in the figure, the three-position four-way valve 34 in the lifting unit 3 of this embodiment includes a neutral stop position, the neutral stop position is located in the middle part, and the left side corresponds to rising while the right side corresponds to falling.
进一步地，所述控制单元1包括控制电路及蜂鸣器11，所述蜂鸣器11电连接于所述控制电路中。Further, the control unit 1 includes a control circuit and a buzzer 11, and the buzzer 11 is electrically connected to the control circuit.
由上述描述可知，本实施例中还可以安装警示灯，警示灯可安装于驾驶室仪表内以提醒驾驶员，而蜂鸣器11则可安装于车辆的底盘以提醒车外人员。As can be seen from the above description, in this embodiment, a warning light can also be installed. The warning light can be installed in the cab instrument to remind the driver, and the buzzer 11 can be installed on the chassis of the vehicle to remind people outside the vehicle.
进一步地，所述控制单元1包括开关12及取力器电磁阀13，所述取力器电磁阀13连接于所述气路上。Further, the control unit 1 includes a switch 12 and a power take-off solenoid valve 13, and the power take-off solenoid valve 13 is connected to the air circuit.
由上述描述可知，本实施例通过开关12控制电磁阀吸合或断开以控制取力器22的工作气路的通路或断路实现液压举升油缸的上升或下降。It can be seen from the above description that in this embodiment, the switch 12 controls the solenoid valve to be engaged or disconnected to control the passage or disconnection of the working air circuit of the power take-off 22 to realize the lifting or lowering of the hydraulic lift cylinder.
进一步地，所述开关12为翘板开关。Further, the switch 12 is a rocker switch.
进一步地，所述第一输入开口及第四输出开口与液压油箱31之间油路上连接有限位阀35。Further, a limit valve 35 is connected on the oil line between the first input opening and the fourth output opening and the hydraulic oil tank 31 .
由上述描述可知，在举升缸33超负荷时，由齿轮泵32泵出的油会通过该限位阀35重新流入液压油箱31，该结构可有效保护举升单元3。It can be known from the above description that when the lifting cylinder 33 is overloaded, the oil pumped by the gear pump 32 will flow into the hydraulic oil tank 31 again through the limit valve 35 , and this structure can effectively protect the lifting unit 3 .
请参照图1，本实用新型的实施例一为：本实施例自卸车的举升系统，包括控制单元1、驱动单元2及举升单元3；Please refer to Fig. 1, the first embodiment of the present invention is: the lifting system of the dump truck in this embodiment, including the control unit 1, the driving unit 2 and the lifting unit 3;
所述驱动单元2包括取力器22及气源21，所述气源21通过气路连接取力器22的输入端，所述控制单元1连接于所述气路上，用于控制气路的通路与断路；The drive unit 2 includes a power take-off 22 and an air source 21, the air source 21 is connected to the input end of the power take-off 22 through an air circuit, and the control unit 1 is connected to the air circuit for controlling the air circuit. access and disconnection;
所述举升单元3包括液压油箱31、齿轮泵32、举升缸33及三位四通阀34，所述齿轮泵32的动力输入端连接所述取力器22，所述齿轮泵32的输入端连接所述三位四通阀的第一输入开口，与所述第一输入开口相对应的第二输出开口连接所述举升缸33的输入端，所述举升缸33的输出端连接所述三位四通阀的第二输入开口，与所述第二输入开口相对应的第二输出开口连接所述液压油箱31，所述第一输入开口及第四输出开口与液压油箱31之间油路上连接有限位阀35；The lifting unit 3 includes a hydraulic oil tank 31, a gear pump 32, a lifting cylinder 33 and a three-position four-way valve 34. The power input end of the gear pump 32 is connected to the power take-off 22, and the gear pump 32 The input end is connected to the first input opening of the three-position four-way valve, the second output opening corresponding to the first input opening is connected to the input end of the lifting cylinder 33, and the output end of the lifting cylinder 33 The second input opening of the three-position four-way valve is connected, and the second output opening corresponding to the second input opening is connected to the hydraulic oil tank 31. The first input opening and the fourth output opening are connected to the hydraulic oil tank 31. The limit valve 35 is connected on the oil circuit between;
所述控制单元1包括控制电路、蜂鸣器11、翘板开关及取力器电磁阀13，所述蜂鸣器11电连接于所述控制电路中，所述取力器电磁阀13连接于所述气路上。The control unit 1 includes a control circuit, a buzzer 11, a seesaw switch and a power take-off solenoid valve 13, the buzzer 11 is electrically connected to the control circuit, and the power take-off solenoid valve 13 is connected to on the gas path.
综上所述，本实用新型提供的自卸车的举升系统，结构简单、实用、可靠、经济、安全。To sum up, the lifting system of the dump truck provided by the utility model is simple in structure, practical, reliable, economical and safe.
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等同变换，或直接或间接运用在相关的技术领域，均同理包括在本实用新型的专利保护范围内。The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent transformations made by using the utility model specification and accompanying drawings, or directly or indirectly used in related technical fields, are all the same. The theory is included in the patent protection scope of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410659.4U CN204674433U (en) | 2015-06-15 | 2015-06-15 | The hoisting system of dumping car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520410659.4U CN204674433U (en) | 2015-06-15 | 2015-06-15 | The hoisting system of dumping car |
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| CN204674433U true CN204674433U (en) | 2015-09-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254323A (en) * | 2019-06-27 | 2019-09-20 | 袁菊花 | The lifting device of dumper |
| CN114572088A (en) * | 2020-11-30 | 2022-06-03 | 陕西重型汽车有限公司 | Anti-collision system for lifting container of dump truck |
-
2015
- 2015-06-15 CN CN201520410659.4U patent/CN204674433U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254323A (en) * | 2019-06-27 | 2019-09-20 | 袁菊花 | The lifting device of dumper |
| CN114572088A (en) * | 2020-11-30 | 2022-06-03 | 陕西重型汽车有限公司 | Anti-collision system for lifting container of dump truck |
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Granted publication date: 20150930 |