WO2019007208A1 - 一种提升器控制装置 - Google Patents

一种提升器控制装置 Download PDF

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WO2019007208A1
WO2019007208A1 PCT/CN2018/091891 CN2018091891W WO2019007208A1 WO 2019007208 A1 WO2019007208 A1 WO 2019007208A1 CN 2018091891 W CN2018091891 W CN 2018091891W WO 2019007208 A1 WO2019007208 A1 WO 2019007208A1
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valve
oil
port
reversing
reversing valve
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PCT/CN2018/091891
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English (en)
French (fr)
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钟海兵
徐孝明
索峰
王秉仕
谢太林
郭华
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江苏常发农业装备股份有限公司
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Publication of WO2019007208A1 publication Critical patent/WO2019007208A1/zh

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    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/862—Control during or prevention of abnormal conditions the abnormal condition being electric or electronic failure
    • F15B2211/8626—Electronic controller failure, e.g. software, EMV, electromagnetic interference
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/895—Manual override

Definitions

  • the invention relates to the field of agricultural machinery technology, in particular to a lifter control device.
  • the lifter is the hydraulic device used for lifting on the tractor.
  • the principle is to increase the liquid pressure generated by the oil.
  • the electronically controlled lifter is the most typical type of lifter used at this stage. It has the advantages of precise control, comfortable driver operation and active shock absorption. However, some practical shortcomings are also exposed.
  • the electronically controlled riser fails, the maintenance difficulty is generally large, and the fault is often not eliminated in time. If the riser only relies on the electronic control mode control, each time the electronic control structure fails. It will cause the whole machine to be unable to perform normal operations, and the downtime is too long, which greatly affects the work efficiency.
  • a riser control device including an oil suction filter, a gear pump, a high pressure oil filter, a hydraulic output valve group, an electric control valve group, an oil circuit switching valve, a control mechanism, and a lifting plunger cylinder
  • the oil passage switching valve includes a first reversing valve and a second reversing valve, and both are mechanical valves
  • the oil suction filter, the gear pump, the high pressure oil filter, the hydraulic output valve group, the first reversing valve, the electric control valve group and the second reversing valve are in turn Connecting; and the electric control valve group is connected to the second reversing valve through another oil port;
  • the oil is discharged from the hydraulic output valve group, and then supplied to the lifting plunger cylinder through the first reversing valve, the electric control valve group and the second reversing valve. oil;
  • the oil is discharged from the hydraulic output valve group and the oil is supplied to the lift plunger cylinder via the second switching valve.
  • two oil passages are designed, one oil passage passes through the electric control valve group, and a mechanical control device is designed in parallel on the oil passage, and the hydraulic output valve is directly connected with the lift plunger cylinder through the mechanical reversing valve structure. Without passing through the electric control valve group.
  • This achieves the conversion of electronic control and manual mechanical control. It can be converted into mechanical control when the electronic control fails, so that it can still operate normally during the electronic control failure, reducing losses and speeding up work efficiency.
  • the oil circuit switching valve and the electric control valve group are integrated structures
  • the oil circuit switching valve and the hydraulic output valve group are of an integrated structure.
  • the first reversing valve and the second reversing valve are synchronously driven by the same valve stem, and the first reversing valve is provided with at least three oil ports, respectively being the first oil port and the second The oil port and the third oil port, the second directional control valve is provided with at least three oil ports, respectively a fourth oil port, a fifth oil port and a sixth oil port;
  • the hydraulic output valve comprises at least one valve block of the first valve block, the first valve block is driven by the handle; an oil port of the first valve block and a first oil of the first reversing valve Port connection, another oil port of the first valve block is connected to the fourth oil port of the second switching valve, the electric control valve group and the second oil port of the first reversing valve
  • the fifth port of the second reversing valve is respectively connected, the sixth port of the second reversing valve is connected with the lifting plunger cylinder; the third port is connected with the hydraulic output valve group to return oil;
  • valve stem acts to drive the first reversing valve and the second reversing valve to operate, the first port is electrically connected to the second port, and the fifth port is The sixth oil port is turned on; the handle is applied to cause oil to enter the first oil port from the first valve block;
  • the valve stem acts to drive the first reversing valve and the second reversing valve to operate, the first port is electrically connected to the third port, and the fourth port is The sixth port is electrically conductive; the handle is acted to cause oil to enter the fourth port from the first valve block.
  • the valve stem simultaneously adjusts the action of the first reversing valve and the second reversing valve to complete the switching between the electric control and the mechanical control
  • the two oil ports of one valve block of the hydraulic output valve respectively correspond to the parallel electric control oil path It is connected with the mechanical control oil passage, and the oil outlet is adjusted by the handle on the valve block to make the oil flow to the electric control oil circuit or the mechanical control oil circuit.
  • the switching between the first reversing valve and the second reversing valve on the oil passage should be performed simultaneously, so that the two valve bodies are regulated by one valve stem.
  • the first valve block is connected to the fourth interface of the second reversing valve through a quick change joint.
  • the hydraulic output valve includes three valve blocks.
  • the hydraulic output valve group is externally provided with a plurality of double-acting cylinders for supplying oil.
  • the double-acting cylinder can drive the machine connected to it.
  • first reversing valve and the second reversing valve are two-way three-way valves.
  • Figure 1 is a system schematic diagram of a riser control device.
  • the present example discloses a riser control device including an oil suction filter 1, a gear pump 2, a high pressure oil filter 3, a hydraulic output valve group 5, an electric control valve group 4, an oil passage switching valve 9, and a lift plunger cylinder 8. ;
  • the oil passage switching valve 9 includes a first reversing valve 91 and a second reversing valve 92, both of which are two-way three-way valves, and the first reversing valve 91 includes a first port b, a second port P, and a third oil.
  • the port T and the second reversing valve 92 are provided with at least three oil ports, which are a fourth port a, a fifth port P2 and a sixth port P1, respectively.
  • the hydraulic output valve block includes three valve blocks 5a, 5b, 5c, all of which are three-way six-way valves.
  • the first reversing valve 91 and the second reversing valve 92 are controlled by a valve stem, and the actions are synchronized.
  • the first reversing valve 91 and the second reversing valve 92 are preferably ball valves.
  • the electric control valve group 4 is connected to the second oil port P and the fifth oil port P2, and the sixth oil port P1 is connected to the lift plunger cylinder 8.
  • the high-pressure oil produced by the oil through the oil suction filter 1 and the gear pump 2 enters the hydraulic output valve group 5 through the high-pressure oil filter 3, and the intermediate oil port of the 5a valve block of the hydraulic output valve group 5 is connected to the first oil port b.
  • the other port B3 is connected to the fourth port a through the quick-change joint 6.
  • the first port b and the second port P are electrically connected, and the fifth port P2 and the sixth port P1 are electrically connected.
  • the hydraulic output valve group 5 is in the middle position shown, the high-pressure oil is operated via the valve blocks 5a, 5b, 5c, and the electronically controlled lifter control mechanism is operated, and the high-pressure oil is routed from the intermediate port of the 5a valve block to the first reversing valve.
  • the first port b and the second port P of the 91 enter the electric control valve group 4, and at this time, the high pressure oil can be passed from the electric control valve group 4 to the fifth port P2 of the second reversing valve 92 through the control mechanism.
  • the sixth port P1 the oil or the oil return lift cylinder 8 to achieve the lifting or lowering of the lifter.
  • the lifter control device is in the electronic control mode.
  • the B3 port of the high pressure oil passage 5a valve block can be passed through the fourth port a and the sixth port P1 of the second reversing valve 92, and the plunger cylinder 8 can be lifted or returned to realize the lifting of the lifter or decline. In this state, the oil does not flow through the electric control valve group 4, and the lifter control device is in the manual control mode. It should be noted that this switching function can also be realized if the hydraulic output valve group 5 includes only one valve block 5a.
  • the essence of the technical idea of this embodiment is that the original oil path of the lifter electronic control mode is unchanged, and an oil circuit is connected in parallel with the hydraulic oil inlet port and the plunger cylinder, and is converted in parallel by the oil passage switching valve.
  • the oil circuit makes the oil circuit in the electronic control mode different and fails. Through manual operation, the working state of the hydraulic output valve will be changed, and one oil port will be transferred to the other oil passage of the oil passage switching valve to be connected to the plunger cylinder to realize the manual operation lifter lifting.
  • the oil circuit switching valve is optional electromagnetic control, and the oil circuit is converted by the electric control button, which has good controllability and high cost.
  • the oil circuit switching valve can be integrated with the electric control valve or the hydraulic output valve group, that is, the electric control valve group or the hydraulic output valve group has the oil circuit conversion function, the structure is compact, the pipeline is simple, and the handling property is good. Therefore, it should be noted that the above description is only a preferred embodiment of the present invention, and the connection manner of the parallel oil passage and the selection of the oil passage switching valve are not limited to the embodiment.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

一种提升器控制装置，包括吸油过滤器（1）、齿轮泵（2）、高压滤油器（3）、液压输出阀组（5）、电控阀组（4）、油路转换阀（9）、控制机构以及提升柱塞缸（8）；油路转换阀（9）包括第一换向阀（91）与第二换向阀（92），且均为机械阀；其中，吸油过滤器（1）、齿轮泵（2）、高压滤油器（3）以及液压输出阀组（5）、第一换向阀（91）、电控阀组（4）以及第二换向阀（92）依次连接；并且电控阀组（4）通过另一油口与第二换向阀（92）连接。第一预定工况下，油液从液压输出阀组（5）导出后先后经由第一换向阀（91）进入电控阀组（4），控制机构控制电控阀组（4）通过第二换向阀（92）向提升柱塞缸（8）供油；第二预定工况下，油液从液压输出阀组（5）导出后经由第二换向阀（92）向提升柱塞缸（8）供油。当提升器电控模式失效时，可以实现电控模式与手控模式的切换。

Description

一种提升器控制装置 技术领域
本发明涉及农业机械技术领域，尤其指一种提升器控制装置。
背景技术
提升器为拖拉机上用于提升的液压装置，其原理是靠油产生的液体压强来提升。电控提升器是现阶段应用最为典型的提升器类型，其具备操控精准、驾驶员操作舒适、可主动减震等优点。但实际应用时也暴露出一些缺点，当电控提升器出现故障后，维修难度一般比较大、故障常常不能及时排除，如果提升器只依靠电控模式控制的话，每次电控结构出现故障时都会导致整机无法进行正常作业，停机时间过长，十分影响作业效率。
发明内容
本发明的目的是提供一种提升器控制装置，当提升器电控模式失效时，可以实现电控模式与手控模式的切换。
本发明提供的技术方案如下：一种提升器控制装置，包括吸油过滤器、齿轮泵、高压滤油器、液压输出阀组、电控阀组、油路转换阀、控制机构以及提升柱塞缸；所述油路转换阀包括第一换向阀与第二换向阀，且均为机械阀；
其中，所述吸油过滤器、所述齿轮泵、所述高压滤油器以及所述液压输出阀组、所述第一换向阀、所述电控阀组以及所述第二换向阀依次连接；并且所述电控阀组通过另一油口与所述第二换向阀连接；
第一预定工况下，油液从所述液压输出阀组导出后先后经由所述第一换向阀、所述电控阀组以及所述第二换向阀向所述提升柱塞缸供油；
第二预定工况下，油液从所述液压输出阀组导出后经由所述第二换向阀向所述提升柱塞缸供油。
本技术方案，设计两条油路，一条油路经过电控阀组，在该油路上并行设计一套机械操控装置，通过机械式的换向阀结构将液压输出阀同提升柱塞缸直接连接而不经过电控阀组。如此实现了电控同手动机械操控的的转换。可以在电控失效时转变为机械控制，使得电控故障期间仍然可以正常作业，减少损失，加快作业效率。
优选的，所述油路转换阀与所述电控阀组为集成式结构；
或；
所述油路转换阀与所述液压输出阀组为集成式结构。
优选的，所述第一换向阀与所述第二换向阀由同一阀杆驱动同步动作，所述第一换向阀设有至少三个油口，分别为第一油口、第二油口以及第三油口，所述第二换向阀设有至少三个油口，分别为第四油口、第五油口以及第六油口；
其中，所述液压输出阀至少包括第一阀块一个阀块，所述第一阀块由手柄 驱动动作；所述第一阀块的一个油口与所述第一换向阀的第一油口连接，所述第一阀块的另一油口与所述第二换向阀的第四油口连接，所述电控阀组与所述第一换向阀的第二油口以及所述第二换向阀的第五油口分别连接，所述第二换向阀的第六油口与所述提升柱塞缸连接；第三油口与液压输出阀组连接以回油；
第一预定状态下，阀杆动作驱动所述第一换向阀与所述第二换向阀动作，所述第一油口与所述第二油口导通，所述第五油口与所述第六油口导通；作用所述手柄使油液从所述第一阀块进入所述第一油口；
第二预定状态下，阀杆动作驱动所述第一换向阀与所述第二换向阀动作，所述第一油口与所述第三油口导通，所述第四油口与所述第六油口导通；作用所述手柄使油液从所述第一阀块进入所述第四油口。
本技术方案，阀杆同时调整第一换向阀与第二换向阀的动作完成电控与机械控制的切换，并将液压输出阀一个阀块的两个油口分别对应并行的电控油路和机械控制油路连接，通过该阀块上的手柄调整出油口使得油液流向电控油路或者机械控制油路。第一换向阀与第二换向阀上导通油路上的转换应该是同时进行的，故而通过一个阀杆来调控两个阀体。
具体的，所述第一阀块通过快换接头与所述第二换向阀的第四接口连接。
具体的，所述液压输出阀包括三个阀块。
具体的，所述液压输出阀组外接有若干双作用油缸为其供油。该双作用油 缸可以驱动与之相连的机具。
具体的，所述第一换向阀与所述第二换向阀均为两路三通阀。
本发明提供的一种提升器控制装置，能够带来以下至少一种有益效果：
1、参考油路并行原理，保留原有提升器的电控油路，而在液压输出阀组与柱塞缸之间并行一条机械控制油路，当电控失效时，切换至机械控制油路使整个装置转变为手动机械操控，可实现提升器的一般控制作业。
2、减少用户由于提升器电控失效而停机的时间。
附图说明
下面将以明确易懂的方式，结合附图说明优选实施方式，对本实用新型一种提升器控制装置的上述特性、技术特征、优点及其实现方式予以进一步说明。
图1是提升器控制装置的系统原理图。
附图标号说明：1、吸油过滤器，2、齿轮泵，3、高压滤油器，4、电控阀组，5、液压输出阀组，6、快换接头，7、双作用油缸，8、提升系统柱塞缸，9、油路转换阀，91、第一换向阀，92、第二换向阀；
b、第一油口，P、第二油口，T、第三油口，a、第四油口，P2、第五油口P1、第六油口。
具体实施方式
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对照附图说明本发明的具体实施方式。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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，并获得其他的实施方式。
为使图面简洁，各图中的只示意性地表示出了与本发明相关的部分，它们并不代表其作为产品的实际结构。
本实例公开了一种提升器控制装置，包括吸油过滤器1、齿轮泵2、高压滤油器3、液压输出阀组5、电控阀组4以及油路转换阀9以及提升柱塞缸8；
油路转换阀9包括第一换向阀91与第二换向阀92，均为两路三通阀，第一换向阀91包括第一油口b、第二油口P以及第三油口T，第二换向阀92设有至少三个油口，分别为第四油口a、第五油口P2以及第六油口P1。液压输出阀组包括三个阀块5a、5b、5c，均为三路六通阀。第一换向阀91与第二换向阀92通过一个阀杆控制，动作同步。示例性的，第一换向阀91与第二换向阀92优选为球阀。
电控阀组4与第二油口P以及第五油口P2连接，而第六油口P1与提升柱塞缸8连接。
油液通过吸油过滤器1、齿轮泵2生产的高压油液，经过高压滤油器3进入液压输出阀组5，液压输出阀组5的5a阀块的中间油口与第一油口b连接，另一油口B3通过快换接头6与第四油口a连接。
当油路转换阀9处于图示右位时，第一油口b与第二油口P导通，第五油口P2与第六油口P1导通。此时液压输出阀组5处于图示中位，高压油液经由阀块5a、5b、5c，操控电控提升器控制机构，高压油液从5a阀块的中间油口途径第一换向阀91的第一油口b与第二油口P进入电控阀组4，此时通过控制机构可使高压油液从电控阀组4中途径第二换向阀92的第五油口P2以及第六油口P1，压油或回油提升柱塞缸8，实现提升器的提升或下降。此时提升器控制装置处于电控模式。
而当油路转换9处于左位时，第一油口b与第三油口T导通，第四油口a与第六油口P1导通。此时高压油液经由液压输出阀组5中位途径第一油口b与第三油口T回油，液压输出阀组5为中立回油状态。将5a阀块的双作用改为单作用，通过快换接头6连接至第二换向阀92的第四油口a，操控5a阀块的手柄转换5a阀块状态为左位或右位，可使高压油液途径5a阀块的B3口流经第二换向阀92的第四油口a和第六油口P1，压油或回油提升柱塞缸8，实现提升器的提升或下降。此状态下油液并未流经电控阀组4，提升器控制装置处于手控模式。需要说明的是，若液压输出阀组5仅包括一个阀块5a，也可以实现这种切换功能。
究此实施例的技术构思本质，是使提升器电控模式的原有油路不变，并通过在液压输出进油口与柱塞油缸处并行连接一条油路，通过油路转换阀转换并行油路，并使得电控模式的油路不同而失效。通过手动操作，将改变液压输出阀的工作状态，将其一个油口转接至油路转换阀的另一油路进而连接至柱塞油 缸，实现手动操作提升器提升。油路转换阀可选型电磁控制，通过电控按钮进行油路转换，操控性好，成本高。油路转换阀可与电控阀或液压输出阀组集成，即电控阀组或液压输出阀组带有油路转换功能，结构紧凑，管路简单，操控性好。故而应当说明的是，以上所述仅是本发明的优选实施方式，并行油路的连接方式以及油路转换阀的选型不局限于本实施例。
应当说明的是，上述实施例均可根据需要自由组合。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (8)

  1. 一种提升器控制装置，其特征在于，包括吸油过滤器、齿轮泵、高压滤油器、液压输出阀组、电控阀组、油路转换阀、控制机构以及提升柱塞缸；所述油路转换阀包括第一换向阀与第二换向阀，且均为机械阀；
    其中，所述吸油过滤器、所述齿轮泵、所述高压滤油器以及所述液压输出阀组、所述第一换向阀、所述电控阀组以及所述第二换向阀依次连接；并且所述电控阀组通过另一油口与所述第二换向阀连接；
    第一预定工况下，油液从所述液压输出阀组导出后先后经由所述第一换向阀进入所述电控阀组，所述控制机构控制所述电控阀组通过所述第二换向阀向所述提升柱塞缸供油；
    第二预定工况下，油液从所述液压输出阀组导出后经由所述第二换向阀向所述提升柱塞缸供油。
  2. 根据权利要求1所述的一种提升器控制装置，其特征在于，
    所述油路转换阀与所述电控阀组为集成式结构；
    或；
    所述油路转换阀与所述液压输出阀组为集成式结构。
  3. 根据权利要求1所述的提升器控制装置，其特征在于，所述第一换向阀与所述第二换向阀由同一阀杆驱动同步动作，所述第一换向阀设有至少三个 油口，分别为第一油口、第二油口以及第三油口，所述第二换向阀设有至少三个油口，分别为第四油口、第五油口以及第六油口；
    其中，所述液压输出阀至少包括第一阀块一个阀块，所述第一阀块由手柄驱动动作；所述第一阀块的一个油口与所述第一换向阀的第一油口连接，所述第一阀块的另一油口与所述第二换向阀的第四油口连接，所述电控阀组与所述第一换向阀的第二油口以及所述第二换向阀的第五油口分别连接，所述第二换向阀的第六油口与所述提升柱塞缸连接；第三油口与液压输出阀组连接以回油；
    第一预定状态下，阀杆动作驱动所述第一换向阀与所述第二换向阀动作，所述第一油口与所述第二油口导通，所述第五油口与所述第六油口导通；作用所述手柄使油液从所述第一阀块进入所述第一油口；
    第二预定状态下，阀杆动作驱动所述第一换向阀与所述第二换向阀动作，所述第一油口与所述第三油口导通，所述第四油口与所述第六油口导通；作用所述手柄使油液从所述第一阀块进入所述第四油口。
  4. 根据权利要求3所述的提升器控制装置，其特征在于：所述第一阀块通过快换接头与所述第二换向阀的第四接口连接。
  5. 根据权利要求3所述的提升器控制装置，其特征在于：所述液压输出阀 包括三个阀块。
  6. 根据权利要求1-5中任一所述的提升器控制装置，其特征在于：所述液压输出阀组外接有若干双作用油缸为其供油。
  7. 根据权利要求3-5中任一所述的提升器控制装置，其特征在于：所述第一换向阀与所述第二换向阀均为两路三通阀。
  8. 根据权利要求1-5中任一所述的提升器控制装置，其特征在于：所述第一换向阀与所述第二换向阀均为球阀。
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