WO2024001133A1 - 操作手柄、回转控制***和作业机械 - Google Patents

操作手柄、回转控制***和作业机械 Download PDF

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Publication number
WO2024001133A1
WO2024001133A1 PCT/CN2022/143286 CN2022143286W WO2024001133A1 WO 2024001133 A1 WO2024001133 A1 WO 2024001133A1 CN 2022143286 W CN2022143286 W CN 2022143286W WO 2024001133 A1 WO2024001133 A1 WO 2024001133A1
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WO
WIPO (PCT)
Prior art keywords
operating handle
switch assembly
ejector pin
housing
handle
Prior art date
Application number
PCT/CN2022/143286
Other languages
English (en)
French (fr)
Inventor
欧阳亚洲
部小平
李胜华
Original Assignee
三一汽车起重机械有限公司
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Filing date
Publication date
Application filed by 三一汽车起重机械有限公司 filed Critical 三一汽车起重机械有限公司
Publication of WO2024001133A1 publication Critical patent/WO2024001133A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/20—Control systems or devices for non-electric drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

Definitions

  • the present application relates to the technical field of engineering machinery, and in particular to an operating handle, a rotation control system and a working machine.
  • a rotary brake valve in the existing rotary control system. Closing the rotary brake valve is the key to maintaining pressure in the rotary oil line to drive the rotary action.
  • the opening and closing of the swing brake valve depends on the pressure sensor installed on the swing output oil line. When the handle is pulled to the left or right, the pressure sensor detects the pressure signal, which is then converted into an electrical signal and enters the IO control module of the vehicle. Then the IO module outputs a signal to close the swing brake valve, and finally realizes swing control.
  • the pressure sensor may occasionally get stuck or malfunction, making the input signal to the rotary brake valve unstable and causing rotary control failure.
  • This application provides an operating handle, a rotary control system and a working machine to solve the problem in the prior art that the pressure sensor is used to measure pressure to control the opening and closing of the rotary brake valve.
  • the pressure sensor occasionally gets stuck or fails, resulting in
  • a more reliable mechanical switch component can be used instead of a pressure sensor to control the opening and closing of the rotation brake valve.
  • the present application provides an operating handle, which includes a handle and a valve seat.
  • the pressure plate of the valve seat is provided with a switch assembly at each position corresponding to the left rotation position and the right rotation position.
  • the switch assembly is used to control the rotation system.
  • the switch component located on the side of the pulling direction controls the closing of the rotary brake valve.
  • the valve seat includes a plunger button, and each of the switch components corresponds to one of the plunger buttons.
  • the pressure The disk drives the switch component located on one side of the pulling direction to press the plunger button on the corresponding side, so that the switch component is closed under pressure and controls the rotation brake valve to close.
  • the plunger button is configured to control the hydraulic oil circuit when pressed by the switch assembly to realize the turning movement of the working machine.
  • the switch component is electrically connected to the IO control module
  • the IO control module is electrically connected to the rotary brake valve
  • the IO control module is activated according to the opening of the switch component. Close control of the rotary control valve.
  • the valve seat includes a plunger button and a housing connected to the pressure plate
  • the switch assembly includes an ejection pin slidingly connected to the housing
  • the ejection pin is located Above the plunger button
  • a first contact piece is provided in the housing
  • a second contact piece is provided at the top of the ejector pin.
  • One of the first contact piece and the second contact piece is connected to the first contact piece.
  • the IO control module is electrically connected, and the other is connected to the power supply.
  • An elastic member is also provided between the housing and the ejector pin. The elastic member is used to make the ejector pin move away from the first contact piece. reset.
  • the housing is provided on the top of the pressure plate, the pressure plate is provided with a through hole at a position corresponding to the ejector pin, and one end of the ejector pin passes downward.
  • the other end of the ejector pin extends upward to be in contact with the plunger button through the through hole and is slidably connected to the housing.
  • the housing is provided with a sliding hole at a position corresponding to the plunger button, and the other end of the thimble is located in the sliding hole of the housing, And slidingly connected with the sliding hole.
  • the elastic member is a spring.
  • a spring seat is provided on the outside of the thimble, and the spring is fixed between the top of the spring seat and the bottom of the housing.
  • the bottom edge of the ejector pin is arc-shaped.
  • the voltage of the power supply is 5 volts.
  • the handle and the valve seat are connected through a universal joint assembly, one end of the universal joint assembly is connected to the valve seat, and the other end is connected to the handle. .
  • One embodiment of the present application also provides a rotation control system, including an operating handle as described in any one of the above.
  • This application also provides a working machine, including an operating handle as described in any one of the above or a rotation control system as described above.
  • the operating handle provided by this application includes a handle and a valve seat.
  • the pressure plate of the valve seat is provided with switch components at positions corresponding to the left rotation position and the right rotation position.
  • the switch component is used to control the opening and closing of the rotation brake valve.
  • the handle When the handle is not operated, the handle is in the neutral position. At this time, both switch components are in a disconnected state.
  • the switch component When the switch component is disconnected, the rotary brake valve is in an open state, and the rotary action cannot be achieved when getting on the vehicle.
  • the switch component located on the side of the pulling direction is squeezed, and the switch component is closed and conductive.
  • the switch component is closed, the rotary brake valve is in a closed state. At this time, you can get on the car. Perform turning movements.
  • the operating handle uses a mechanical switch component to replace the pressure sensor in the prior art.
  • the switch component When the handle is pulled, the switch component is closed and the rotary brake valve is closed. After the handle returns to the neutral position, the switch component is opened, corresponding to The rotary brake valve opens, and the mechanical switch component is more reliable and will not jam or malfunction.
  • Figure 1 is an exploded structural schematic diagram of an operating handle provided according to an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a valve seat provided according to an embodiment of the present application.
  • Figure 3 is an exploded view of a valve seat provided according to one embodiment of the present application.
  • Figure 4 is a schematic diagram of the installation of a switch assembly on a valve seat according to an embodiment of the present application.
  • This application provides an operating handle, which includes a handle 1 and a valve seat 2.
  • the handle 1 and the valve seat 2 are connected through a universal joint assembly 3.
  • One end of the universal joint assembly 3 is connected to the valve seat 2, and the other end is connected to the handle 1.
  • the pressure plate 6 is connected to one end of the universal joint assembly 3 and the handle 1, and can realize synchronous action with the handle 1.
  • the pressure plate 6 can press the corresponding plunger button 4 on the valve seat 2 to control the rotation of the upper vehicle and the hydraulic mechanism. Movement, when the handle 1 is pulled in the four directions of left front, left rear, right front and right rear, the pressure plate 6 can press the two corresponding plunger buttons 4 on the valve seat 2 at the same time.
  • the operating handle provided by this application is provided with a switch assembly 5 on the pressure plate 6, and at least one switch assembly 5 is provided at each of the two positions of the pressure plate 6 corresponding to the left rotation position and the right rotation position.
  • the switch assembly 5 is used for control.
  • the rotary brake valve opens and closes.
  • the rotary brake valve is in a normally open state.
  • the switch component 5 located on the side of the pulling direction controls the rotary brake valve to close.
  • each switch component 5 corresponds to the position of a plunger button 4 on the valve seat 2.
  • the pressure plate 6 drives the switch component 5 located on one side of the pulling direction to press
  • the plunger button 4 on the corresponding side causes the switch assembly 5 to be pressed closed and control the swing brake valve to close.
  • the two switch assemblies 5 corresponding to the left rotation position and the right rotation position are both used to control the opening and closing of the rotation brake valve.
  • the pressure plate 6 and the handle 1 move synchronously.
  • the pressure plate 6 drives the switch assembly 5 on the left to contact the plunger button 4 on the left.
  • the pressure plate 6 drives the switch assembly 5 on the left to contact the plunger button 4 on the left Plunger button 4 is pressed.
  • the switch assembly 5 is closed under pressure and the rotary brake valve is closed.
  • the hydraulic oil circuit controlled by the plunger button 4 on the left Since the plunger button 4 on the left is pressed, the hydraulic oil circuit controlled by the plunger button 4 on the left generates oil pressure to realize the boarding of the work machine. Left turning action. If the swing brake valve is open, the hydraulic oil in the hydraulic oil circuit will return through the swing brake valve, causing the oil pressure to be released, unable to hold the pressure, and unable to drive the vehicle to achieve left rotation.
  • the operating handle provided by this application uses a mechanical switch component 5 to control the opening and closing of the rotary brake valve.
  • the mechanical switch component 5 is more reliable. As long as the handle 1 moves, that is, The switch component 5 can be closed, thereby controlling the rotation brake valve to close, and there will be no rotation failure.
  • the above-mentioned switch assembly 5 and the rotary brake valve are connected through an IO control module on the vehicle, and the IO control module controls the rotary control valve according to the opening and closing of the switch assembly 5 .
  • the switch component 5 is connected between the power supply and the IO control module.
  • the power supply sends an electrical signal to the IO control module, and the IO control module receives the electrical signal.
  • a closing signal is sent to the swing brake valve, and the swing brake valve is closed.
  • the switch component 5 is disconnected.
  • the electrical signal received by the IO control module disappears, and the closing signal received by the rotary brake valve also disappears, and the rotary brake valve returns to the normally open state. .
  • valve seat 2 further includes a housing 7 connected to the pressure plate 6 , and the above-mentioned switch assembly 5 includes an ejector pin 10 and an elastic member 11 .
  • the housing 7 can be a disc-shaped structure, and the disc-shaped housing 7 can be arranged above the pressure plate 6, or on the side of the pressure plate 6 away from the plunger button 4.
  • the disc-shaped housing 7 7 can also be arranged below the pressure plate 6, but this embodiment only discloses the case where the housing 7 is arranged above the pressure plate 6.
  • those skilled in the art know the embodiments disclosed in this application, they can easily know that the housing 7 The structure when it is arranged below the pressure plate 6 is therefore not described in detail here.
  • the housing 7 can be in the same disk shape as the pressure plate 6.
  • the housing 7 is provided with a sliding hole 8 at a position corresponding to the plunger button 4, and a through hole is provided at a position corresponding to the pressure plate 6 and the plunger button 4. 9.
  • the housing 7 is installed above the pressure plate 6, the axes of the plunger button 4, the through hole 9 and the sliding hole 8 are collinear.
  • the top of the ejector pin 10 is located in the sliding hole 8 of the housing 7 and is slidingly connected with the sliding hole 8.
  • the bottom of the ejector pin 10 passes downward through the through hole 9 and contacts the top of the plunger button 4.
  • An elastic member 11 is provided between the ejector pin 10 and the housing 7 . The elastic member 11 is used to drive the ejector pin 10 to move toward the plunger button 4 .
  • a first contact piece 12 is provided on the inner top of the sliding hole 8 of the housing 7 , and a second contact piece 13 is provided on the top of the ejector pin 10 .
  • One of the first contact piece 12 and the second contact piece 13 is used for electrical connection with the IO control module on the vehicle, and the other one is connected with the power supply.
  • the handle 1 In the initial state, that is, when the handle 1 is in a non-operated state, the handle 1 is in the middle position, and each thimble 10 is located at the lowest position under the action of the elastic member 11 .
  • the bottom of the ejector pin 10 is in contact with the top of the corresponding plunger button 4, the second contact piece 13 on the top of the ejector pin 10 and the first contact piece 12 in the sliding hole 8 are in a separated state, and the IO control module cannot receive electrical signals. , therefore, the swing brake valve is in a normally open state.
  • the pressure plate 6 drives the left side of the housing 7 to tilt, and the ejector pin 10 overcomes the force of the elastic member 11 under the squeeze of the plunger button 4. The elastic force moves upward, and finally the second contact piece 13 located at the top of the ejector pin 10 is combined with the first contact piece 12 in the sliding hole 8.
  • the IO control module on the car receives the electrical signal and sends a closing signal to the rotary brake valve, and the rotary brake valve The valve is closed.
  • the pressure plate 6 continues to tilt to the left driven by the handle 1, the plunger button 4 is pressed, and the hydraulic oil circuit corresponding to the plunger button 4 is pressed to achieve the left rotation of the vehicle.
  • the above-mentioned elastic member 11 can be a spring, and an annular protrusion with an outer diameter larger than that of the ejector pin 10 is provided between the bottom of the ejector pin 10 and the top of the pressure plate 6 .
  • This annular protrusion forms a spring seat.
  • the spring is sleeved on the outside of the ejector pin 10 , and the bottom of the spring is in contact with the top of the spring seat, and the top of the spring is in contact with the bottom of the housing 7 .
  • the spring is compressed.
  • the spring resumes its deformation and pushes the ejector pin 10 to move downward.
  • the edge of the bottom of the ejector pin 10 may be arc-shaped.
  • the voltage of the above power supply may be 5V.
  • the switch assembly is not limited to the structural form described above.
  • the switch assembly 5 is pressed by a plunger button or other structure to achieve closure.
  • the structural form also belongs to this application. scope of protection.
  • Embodiments of the present application also provide a slew control system.
  • the slew control system includes an IO control module arranged on the upper vehicle, a slew brake valve and the above-mentioned operating handle.
  • the IO control module is connected between the power supply and the above-mentioned operating handle. Between the switch components 5, the rotary brake valve is connected to the IO control module. Since it has the operating handle as described above, it has the same advantages as mentioned above.
  • Embodiments of the present application also provide a working machine.
  • the working machine may be an excavator, a crane, or other machines with a slewing structure. Since it has the operating handle as mentioned above or the rotation control system as mentioned above, it has the same advantages as mentioned above.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
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Abstract

一种工程机械领域，提供一种操作手柄、回转控制***和作业机械，包括手柄（1）和阀座（2），阀座（2）的压盘（6）上与左回转位和右回转位对应的位置各设置一个开关组件（5），开关组件（5）用于控制回转制动阀的开闭，当手柄（1）未操作时，手柄（1）位于中位，此时两个开关组件均处于断开的状态，当开关组件断开时，回转制动阀处于开启的状态，当向左或向右扳动手柄（1）时，位于扳动方向一侧的开关组件受到挤压，开关组件闭合导通，当开关组件闭合时，回转制动阀处于关闭状态，此时，上车可实现回转动作，本申请使用可靠性更高的机械式的开关组件代替现有技术中的压力传感器，不会出现卡滞或失灵的情况。

Description

操作手柄、回转控制***和作业机械 技术领域
本申请涉及工程机械技术领域，尤其涉及一种操作手柄、回转控制***和作业机械。
背景技术
为了满足对起重机、挖掘机等作业机械的上车回转动作的精准控制，除了依赖于液压控制以外，也加入了一定的电气逻辑。传统的回转控制逻辑由先导阀手柄发起，操作人员通过向左或者向右扳动手柄，使对应的先导油路获得一定的压力。同时回转控制阀根据不同先导油路的压力变换阀内液压油的流动方向，从而实现左回转或者右回转的方向控制。
在现有的回转控制***内有一个回转制动阀，回转制动阀的关闭是实现回转油路憋压从而驱动回转动作的关键。回转制动阀的开闭取决于安装在回转输出油路上的压力传感器，当手柄向左或者向右扳动时，压力传感器检测到压力信号，随即转化为电信号进入上车的IO控制模块，然后通过IO模块再输出一个信号实现回转制动阀的关闭，最后实现回转控制。
但是压力传感器存在偶发性卡滞或者失灵的情况，使回转制动阀的输入信号不够稳定，会出现回转控制失效的情况。
发明内容
本申请提供一种操作手柄、回转控制***和作业机械，用以解决现有技术中通过压力传感器测压控制回转制动阀的开闭，但压力传感器存在偶发性卡滞或失灵的情况，导致出现回转控制失效的情况的缺陷，实现使用可靠性更强的机械式的开关组件代替压力传感器控制回转制动阀开闭的效果。
本申请的提供一种操作手柄，包括手柄和阀座，所述阀座的压盘上与左回转位和右回转位对应的位置各设置有一个开关组件，所述开关组件用于控制回 转制动阀的开闭，所述回转制动阀处于常开状态，当所述手柄向左或向右扳动时，位于扳动方向一侧的所述开关组件控制所述回转制动阀关闭。
根据本申请的一个实施例提供的操作手柄，所述阀座包括柱塞按钮，每个所述开关组件分别对应一个所述柱塞按钮，当所述手柄向一个方向扳动时，所述压盘带动位于扳动方向一侧的所述开关组件按压对应侧的所述柱塞按钮，从而所述开关组件受压闭合而控制所述回转制动阀关闭。
根据本申请的一个实施例提供的操作手柄，所述柱塞按钮设置为在被所述开关组件按下时，能够控制液压油路以实现作业机械的上车的回转动作。
根据本申请的一个实施例提供的操作手柄，所述开关组件与IO控制模块电连接，所述IO控制模块与所述回转制动阀电连接，所述IO控制模块根据所述开关组件的开闭控制所述回转控制阀。
根据本申请的一个实施例提供的操作手柄，所述阀座包括柱塞按钮以及与所述压盘连接的壳体，所述开关组件包括与所述壳体滑动连接的顶针，所述顶针位于所述柱塞按钮的上方，所述壳体内设置有第一触片，所述顶针的顶部设置有第二触片，所述第一触片与所述第二触片的其中一者与所述IO控制模块电连接，另一者与电源连接，所述壳体与所述顶针之间还设置有弹性件，所述弹性件用于使得所述顶针向远离所述第一触片的方向复位。
根据本申请的一个实施例提供的操作手柄，所述壳体设置在所述压盘的顶部，所述压盘与所述顶针对应的位置设置有通孔，所述顶针的一端向下穿过所述通孔与所述柱塞按钮接触，所述顶针的另一端向上延伸与所述壳体滑动连接。
根据本申请的一个实施例提供的操作手柄，所述壳体与所述柱塞按钮对应的位置设置有滑孔，所述顶针的所述另一端位于所述壳体的所述滑孔内，且与所述滑孔滑动连接。
根据本申请的一个实施例提供的操作手柄，所述弹性件为弹簧。
根据本申请的一个实施例提供的操作手柄，所述顶针的外侧设置有弹簧座，所述弹簧固定在所述弹簧座的顶部与所述壳体的底部之间。
根据本申请的一个实施例提供的操作手柄，所述顶针的底部边缘为弧形。
根据本申请的一个实施例提供的操作手柄，所述电源的电压为5伏。
根据本申请的一个实施例提供的操作手柄，所述手柄和所述阀座通过万向节组件连接，所述万向节组件的其中一端与所述阀座连接，另一端与所述手柄连接。
本申请的一个实施例还提供一种回转控制***，包括如以上任一项所述的操作手柄。
本申请还提供一种作业机械，包括如以上任一项所述的操作手柄或如上所述的回转控制***。
本申请提供的操作手柄，包括手柄和阀座，阀座的压盘上与左回转位和右回转位对应的位置分别设置有开关组件，开关组件用于控制回转制动阀的开闭。当手柄未操作时，手柄位于中位，此时两个开关组件均处于断开的状态，当开关组件断开时，回转制动阀处于开启的状态，上车无法实现回转动作。当向左或向右扳动手柄时，位于扳动方向一侧的开关组件受到挤压，开关组件闭合导通，当开关组件闭合时，回转制动阀处于关闭状态，此时，上车可进行回转动作。本申请提供的操作手柄，使用机械式的开关组件代替现有技术中的压力传感器，当手柄扳动时，开关组件闭合，回转制动阀关闭，手柄回到中位后，开关组件打开，对应的回转制动阀打开，机械式的开关组件更加可靠，不会出现卡滞或失灵的情况。
进一步的，在本申请提供的回转控制***和作业机械中，由于具有如上所述的操作手柄，因此，具有与如上所述相同的优势。
附图说明
为了更清楚地说明本申请或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是根据本申请的一个实施例提供的操作手柄的分解结构示意图；
图2是根据本申请的一个实施例提供的阀座的结构示意图；
图3是根据本申请的一个实施例提供的阀座的***图；
图4是根据本申请的一个实施例提供的开关组件在阀座上的安装示意图。
附图标记说明：
1：手柄；2：阀座；3：万向节组件；4：柱塞按钮；5：开关组件；6：压盘；7：壳体；8：滑孔；9：通孔；10：顶针；11：弹性件；12：第一触片；13：第二触片。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请中的附图，对本申请中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
下面结合图1至图4描述本申请的操作手柄、回转控制***和作业机械。
本申请提供一种操作手柄，包括手柄1和阀座2，手柄1和阀座2通过万向节组件3连接，万向节组件3的其中一端与阀座2连接，另一端与手柄1连接。压盘6连接在万向节组件3与手柄1连接的一端，可实现与手柄1同步动作。当手柄1向前、后、左、右四个方向的其中一个方向扳动时，压盘6可将阀座2上对应的柱塞按钮4按下，以控制上车的回转以及液压机构的运动，当手柄1向左前、左后、右前、右后四个方向扳动时，压盘6可将阀座2上对应的两个柱塞按钮4同时按下。
本申请提供的操作手柄，在压盘6上设置有开关组件5，且至少在压盘6与左回转位和右回转位对应的两个位置各设置一个开关组件5，开关组件5用于控制回转制动阀的开闭，所述回转制动阀处于常开状态，当手柄1向左或向 右扳动时，位于扳动方向一侧的开关组件5控制所述回转制动阀关闭。
在一个实施例中，每个开关组件5与阀座2上的一个柱塞按钮4位置对应，当手柄1向一个方向扳动时，压盘6带动位于扳动方向一侧的开关组件5按压对应侧的柱塞按钮4，从而开关组件5受压闭合而控制所述回转制动阀关闭。
具体的，与左回转位和右回转位对应的两个开关组件5均用于控制回转制动阀的开闭。当手柄1向其中一个方向扳动时，压盘6与手柄1同步动作。例如当向左扳动手柄1时，压盘6带动左侧的开关组件5与左侧的柱塞按钮4接触，当扳动的力度足够大时，压盘6通过开关组件5将左侧的柱塞按钮4按下。同时开关组件5受压闭合，回转制动阀关闭，由于左侧的柱塞按钮4被按下，由左侧的柱塞按钮4控制的液压油路产生油压，实现作业机械的上车的左回转动作。若回转制动阀处于打开状态，液压油路的液压油会经回转制动阀回油，导致油压被释放，无法实现憋压，无法驱动上车实现左回转动作。
本申请提供的操作手柄，使用机械式的开关组件5控制回转制动阀的开闭，相较于压力传感器测压的方式，机械式的开关组件5可靠性更高，只要手柄1动作，即可实现开关组件5闭合，进而控制回转制动阀关闭，不会出现回转失灵的情况。
在进一步的实施例中，上述的开关组件5与回转制动阀之间通过上车的IO控制模块连通，IO控制模块根据开关组件5的开闭控制所述回转控制阀。具体的，开关组件5连接在电源与IO控制模块之间，当手柄1向左或向右扳动使对应的开关组件5闭合时，电源向IO控制模块发出电信号，IO控制模块接收到电信号后，向回转制动阀发出关闭信号，回转制动阀关闭。当手柄1回到中位时，开关组件5断开，此时IO控制模块接收的电信号消失，进而回转制动阀接收到的关闭信号也随之消失，回转制动阀回到常开状态。
在本申请的一个实施例中，所述阀座2还包括与压盘6连接的壳体7，上述的开关组件5包括顶针10和弹性件11。
壳体7可以为圆盘形结构，圆盘形的壳体7可以设置在压盘6的上方，或 者说设置在压盘6远离柱塞按钮4的一侧，当然，圆盘形的壳体7也可以设置在压盘6的下方，但本实施例仅公开壳体7设置在压盘6上方的情况，当本领域技术人员得知本申请公开的实施例后可轻易得知壳体7设置在压盘6下方时的结构，因此，此处不做具体说明。
壳体7可以为与压盘6形状相同的圆盘形，在壳体7与柱塞按钮4对应的位置设置有滑孔8，在压盘6与柱塞按钮4对应的位置设置有通孔9。当壳体7安装到压盘6上方后，柱塞按钮4、通孔9和滑孔8的轴线共线。
顶针10的顶端位于壳体7的滑孔8内，且与滑孔8滑动连接，顶针10的底部向下穿过通孔9与柱塞按钮4的顶端接触。在顶针10与壳体7之间设置有弹性件11，弹性件11用于驱动顶针10向靠近柱塞按钮4的方向移动。
在壳体7的滑孔8的内侧顶部设置有第一触片12，在顶针10的顶部设置有第二触片13。第一触片12和第二触片13中的其中一者用于与上车的IO控制模块电连接，另一者与电源连接。
在初始状态时，即手柄1处于未操作状态时，手柄1处于中位，各个顶针10在弹性件11的作用下，位于最下方的位置。此时，顶针10的底部与对应的柱塞按钮4的顶部接触，顶针10顶部的第二触片13与滑孔8内的第一触片12处于分离状态，IO控制模块无法接收到电信号，因此，回转制动阀处于常开状态。
当操作员向左或向右扳动手柄1时，例如向左扳动手柄1，压盘6带动壳体7左侧倾斜，顶针10在柱塞按钮4的挤压下，克服弹性件11的弹力向上运动，最终位于顶针10顶部的第二触片13与滑孔8内的第一触片12结合，上车的IO控制模块接收到电信号，向回转制动阀发出关闭信号，回转制动阀关闭。压盘6在手柄1的带动下继续向左倾斜，柱塞按钮4被按下，与该柱塞按钮4对应的液压油路憋压，实现上车的左回转动作。
当需要左回转动作结束时，松开手柄1，柱塞按钮4在弹簧的作用下向上顶起压盘6，使手柄1复位，且位于壳体7与顶针10之间的弹性件11恢复形 变释放弹力，推动顶针10向下运动，即推动顶针10向远离第一触片12的方向复位，使第一触片12与第二触片13分离，IO控制模块接收到的电信号消失，随之回转制动阀接收到的关闭信号也消失，回转制动阀回到常开状态，液压油路通过回转制动阀泄压，回转动作结束。
在本申请的一个实施例中，上述的弹性件11可以为弹簧，在顶针10位于壳体7的底部与压盘6的顶部之间设置有外径大于顶针10的外径的环形凸起，该环形凸起形成弹簧座。弹簧套设在顶针10的外侧，且弹簧的底部与弹簧座的顶部接触，弹簧的顶部与壳体7的底部接触。当顶针10沿滑孔8向上运动时，弹簧受压，当顶针10所受外力消失时，弹簧恢复形变，推动顶针10向下运动。
为了防止顶针10的顶部与柱塞按钮4的顶部频繁移动导致两者发生磨损，顶针10的底部的边缘可以为弧形。
上述的电源的电压可以为5V。
本领域技术人员可以理解的是，开关组件并不限于如上所描述的结构形式，在扳动手柄1时，开关组件5被柱塞按钮或者其它结构按压而能够实现闭合的结构形式也属于本申请的保护范围。
在本申请的上述实施例中仅公开了设置在左右两侧的两个开关组件5用于控制回转制动阀开闭的实施例，当然，在压盘6上与前侧的柱塞按钮4以及后侧的柱塞按钮4对应的位置也可以设置控制其他阀组动作的开关组件，在本申请中不做详细说明。
本申请的实施例还提供一种回转控制***，该回转控制***包括设置在上车的IO控制模块、回转制动阀和上述的操作手柄，IO控制模块连接在电源与上述的操作手柄中的开关组件5之间，回转制动阀与IO控制模块连接。由于具有如上所述的操作手柄，因此具有与如上所述相同的优势。
本申请的实施例还提供一种作业机械，作业机械可以为挖掘机、起重机等具有上车回转结构的机械。由于具有如上所述的操作手柄或如上所述的回转控制***，因此，具有与如上所述相同的优势。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (14)

  1. 一种操作手柄，其特征在于，包括手柄(1)和阀座(2)，所述阀座(2)的压盘(6)上与左回转位和右回转位对应的位置各设置有一个开关组件(5)，所述开关组件(5)用于控制回转制动阀的开闭，所述回转制动阀处于常开状态，当所述手柄(1)向左或向右扳动时，位于扳动方向一侧的所述开关组件(5)控制所述回转制动阀关闭。
  2. 根据权利要求1所述的操作手柄，其特征在于，所述阀座(2)包括柱塞按钮(4)，每个所述开关组件(5)分别对应一个所述柱塞按钮(4)，当所述手柄(1)向一个方向扳动时，所述压盘(6)带动位于扳动方向一侧的所述开关组件(5)按压对应侧的所述柱塞按钮(4)，从而所述开关组件(5)受压闭合而控制所述回转制动阀关闭。
  3. 根据权利要求2所述的操作手柄，其特征在于，所述柱塞按钮设置为在被所述开关组件(5)按下时，能够控制液压油路以实现作业机械的上车的回转动作。
  4. 根据权利要求1所述的操作手柄，其特征在于，所述开关组件(5)与IO控制模块电连接，所述IO控制模块与所述回转制动阀电连接，所述IO控制模块根据所述开关组件(5)的开闭控制所述回转控制阀。
  5. 根据权利要求4所述的操作手柄，其特征在于，所述阀座(2)包括柱塞按钮(4)以及与所述压盘(6)连接的壳体(7)，所述开关组件(5)包括与所述壳体(7)滑动连接的顶针(10)，所述顶针(10)位于所述柱塞按钮(4)的上方，所述壳体(7)内设置有第一触片(12)，所述顶针(10)的顶部设置有第二触片(13)，所述第一触片(12)与所述第二触片(13)的其中一者与所述IO控制模块电连接，另一者与电源连接，所述壳体(7)与所述顶针(10)之间还设置有弹性件(11)，所述弹性件(11)用于使得所述顶针(10)向远离所述第一触片(12)的方向复位。
  6. 根据权利要求5所述的操作手柄，其特征在于，所述壳体(7)设置在 所述压盘(6)的顶部，所述压盘(6)与所述顶针(10)对应的位置设置有通孔(9)，所述顶针(10)的一端向下穿过所述通孔(9)与所述柱塞按钮(4)接触，所述顶针(10)的另一端向上延伸与所述壳体(7)滑动连接。
  7. 根据权利要求6所述的操作手柄，其特征在于，所述壳体(7)与所述柱塞按钮(4)对应的位置设置有滑孔(8)，所述顶针(10)的所述另一端位于所述壳体(7)的所述滑孔(8)内，且与所述滑孔(8)滑动连接。
  8. 根据权利要求5-7中任意一项所述的操作手柄，其特征在于，所述弹性件(11)为弹簧。
  9. 根据权利要求8所述的操作手柄，其特征在于，所述顶针(10)的径向外侧设置有弹簧座，所述弹簧安装在所述弹簧座的顶部与所述壳体(7)的底部之间。
  10. 根据权利要求5所述的操作手柄，其特征在于，所述顶针(10)的底部为弧形。
  11. 根据权利要求5所述的操作手柄，其特征在于，所述电源的电压为5伏。
  12. 根据权利要求1-11中任意一项所述的操作手柄，其特征在于，所述手柄(1)和所述阀座(2)通过万向节组件(3)连接，所述万向节组件(3)的其中一端与所述阀座(2)连接，另一端与所述手柄(1)连接。
  13. 一种回转控制***，其特征在于，包括如权利要求1-12任一项所述的操作手柄。
  14. 一种作业机械，其特征在于，包括如权利要求1-12任一项所述的操作手柄或如权利要求13所述的回转控制***。
PCT/CN2022/143286 2022-06-30 2022-12-29 操作手柄、回转控制***和作业机械 WO2024001133A1 (zh)

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CN215219542U (zh) * 2021-05-24 2021-12-17 徐州威卡电子控制技术有限公司 一种采用霍尔位置传感器的电控手柄
CN217559161U (zh) * 2022-06-30 2022-10-11 三一汽车起重机械有限公司 操作手柄、回转控制***和作业机械

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