阅读说明：本技术 一种自动连接液压油路的快速连接器 (Quick connector for automatically connecting hydraulic oil circuit ) 是由 刘在政 张海涛 刘金书 邹黎勇 龚加文 卯春秋 宋效凯 于 2020-06-05 设计创作，主要内容包括：本发明提供一种自动连接液压油路的快速连接器,包括连接器本体以及设置在工作装置上并连接内部油管的液压快接头二,在工作装置上设有平行的第一连接轴和第二连接轴；连接器本体包括与机械臂架连接的架体以及设置在架体上的摆动钩、液压调节机构和液压快接头一,液压快接头一与机械臂架内部的油管连接,架体上设有用于卡接第一连接轴的第一圆弧板,摆动钩的一端与架体可转动连接而另一端设有用于卡接第二连接轴的第二圆弧板,两个圆弧板的开口方向相背离,摆动钩与液压调节机构钩联动设置并在其带动下实现两个圆弧板的间距与两个连接轴的间距适配,两个液压快接头对应连接并在工作装置和机械臂架间形成液压循环油路。本发明连接效率高且连接牢固。(The invention provides a quick connector automatically connected with a hydraulic oil circuit, which comprises a connector body and a second hydraulic quick connector, wherein the second hydraulic quick connector is arranged on a working device and is connected with an internal oil pipe; the connector body includes the support body of being connected with the robotic arm frame and sets up the swing hook on the support body, hydraulic pressure adjustment mechanism and hydraulic pressure quick-operation joint one, hydraulic pressure quick-operation joint one is connected with the inside oil pipe of robotic arm frame, be equipped with the first circular arc board that is used for the first connecting axle of joint on the support body, the one end and the support body rotatable coupling of swing hook and the other end are equipped with the second circular arc board that is used for the joint second connecting axle, the opening direction of two circular arc boards deviates from mutually, swing hook and hydraulic pressure adjustment mechanism hook linkage set up and realize the interval adaptation of the interval of two circular arc boards and two connecting axles under its drive, two hydraulic pressure quick-operation joints correspond and connect and form hydraulic pressure circulation oil circuit between equipment and robotic arm frame. The invention has high connection efficiency and firm connection.)

1. A quick connector automatically connected with a hydraulic oil way is used for connecting a mechanical arm support and a working device (01), and a first connecting shaft (02) and a second connecting shaft (03) which are parallel to each other are arranged on the working device (01), and is characterized by comprising a connector body and a hydraulic quick connector II (7) arranged on the working device (01), wherein the hydraulic quick connector II (7) is connected with an oil pipe in the working device (01);

the connector body comprises a frame body (1) connected with a mechanical arm support, a swing hook (4), a hydraulic adjusting mechanism (5) and a hydraulic quick connector (6), wherein the swing hook (4), the hydraulic adjusting mechanism (5) and the hydraulic quick connector (6) are arranged on the frame body (1), the hydraulic quick connector (6) is connected with an oil pipe in the mechanical arm support, a first arc plate (8) used for clamping a first connecting shaft (02) is fixedly arranged on the frame body (1), the inner diameter of the first arc plate (8) is matched with the outer diameter of the first connecting shaft (02), one end of the swing hook (4) is rotatably connected with the frame body (1), a second arc plate (4.4) used for clamping a second connecting shaft (03) is arranged at the other end of the swing hook, the inner diameter of the second arc plate (4.4) is matched with the outer diameter of the second connecting shaft (03), the opening directions of the two arc plates deviate from each other, the hydraulic adjusting mechanism (5) comprises a control oil cylinder (5.1, a piston rod of the control oil cylinder (5.1) is in linkage arrangement with the swing hook (4); under the action of the hydraulic adjusting mechanism (5), the distance between the second arc plate (4.4) and the first arc plate (8) is matched with the distance between the first connecting shaft (02) and the second connecting shaft (03), and the first hydraulic quick connector (6) and the second hydraulic quick connector (7) are correspondingly connected to form a hydraulic circulating oil circuit between the working device and the mechanical arm frame.

2. The quick connector for automatically connecting the hydraulic oil circuit according to claim 1, wherein a guide pin shaft is arranged on the first hydraulic quick connector (6), and a matched guide hole is correspondingly arranged on the second hydraulic quick connector (7); or a guide pin shaft is arranged on the second hydraulic quick connector (7), and a matched guide hole is correspondingly arranged on the first hydraulic quick connector (6).

3. The quick connector for automatically connecting the hydraulic oil circuit according to claim 2, wherein a third circular arc plate (9) for clamping the second connecting shaft (03) is fixedly arranged on the frame body (1), the inner diameter of the third circular arc plate (9) is matched with the outer diameter of the second connecting shaft (03), and the distance between the third circular arc plate (9) and the first circular arc plate (8) is matched with the distance between the first connecting shaft (02) and the second connecting shaft (03).

4. A quick connector for the automatic connection of hydraulic circuits according to claim 3, characterized in that said third circular arc plate (9) has a corresponding central angle of less than 180 °.

5. The quick connector for automatically connecting a hydraulic circuit according to claim 4, characterized in that the corresponding central angles of the first circular arc plate (8) and the second circular arc plate (4.4) are both less than or equal to 180 °.

6. The quick connector for automatically connecting the hydraulic oil circuit according to claim 3, wherein a positioning pin (10) for limiting the swing hook (4) is further arranged on the frame body (1).

7. The quick connector for automatically connecting the hydraulic oil circuit according to claim 6, wherein the hydraulic adjusting mechanism (5) further comprises a control oil pipe (5.2), a two-way hydraulic lock (5.3) and an oil pipe joint (5.4), one end of the control oil cylinder (5.1) is connected with the swing hook (4) through a first pin (5.5), the other end of the control oil cylinder is connected with the frame body (1) through a second pin (5.6), one end of the oil pipe (5.2) is connected with the control oil cylinder (5.1) through the oil pipe joint (5.4), the other end of the oil pipe is connected with the two-way hydraulic lock (5.3) through the oil pipe joint (5.4), and the two-way hydraulic lock (5.3) is fixedly arranged on the frame body (1).

8. The quick connector for automatically connecting a hydraulic oil circuit according to claim 7, characterized in that the swing hook (4) further comprises a hook-shaped body (4.1) and a bushing (4.5), a hinge pin shaft hole (4.2) for connecting the frame body (1) and a cylinder pin shaft hole (4.3) for connecting a piston rod of the control cylinder (5.1) are formed in the hook-shaped body (4.1), and the bushing (4.5) is installed in the hinge pin shaft hole (4.2) for reducing the relative motion friction between the hook-shaped body (4.1) and the frame body (1).

9. The quick connector for automatically connecting the hydraulic oil circuit according to claim 8, wherein a first shaft (2) and a second shaft (3) for connecting the mechanical arm support are arranged on the frame body (1), and the first shaft (2), the second shaft (3), the first connecting shaft (02) and the second connecting shaft (03) are arranged in parallel.

10. The quick connector for automatically connecting the hydraulic oil circuit according to claim 9, wherein the frame body (1) comprises two side plates (1.1) which are arranged in parallel and symmetrically, a cavity structure for accommodating the swing hook (4), the hydraulic adjusting mechanism (5) and the hydraulic quick connector (6) is formed between the two side plates, two ends of the first shaft (2) and the second shaft (3) are respectively and vertically connected with the two side plates (1.1), a mounting plate (1.2) for mounting the hydraulic quick connector (6) is arranged between the two side plates, the side plates (1.1) are provided with a first shaft mounting hole (1.3), a second shaft mounting hole (1.4), a swing hook connecting hole (1.5), a control cylinder connecting hole (1.6) and a swing hook positioning hole (1.7), and the positioning pin shaft (10) is connected with the swing hook positioning hole (1.7).

Technical Field

The invention relates to the technical field of engineering machinery manufacturing, in particular to a quick connector for automatically connecting a hydraulic oil way.

Background

The quick connector is very wide in the technical field of engineering machinery manufacturing, and working devices such as a breaking hammer, an injection head or a roughening device can be mounted on a mechanical arm support of an excavator or other large-scale operation engineering vehicles through the quick connector, so that the quick expansion of the operation function of the mechanical arm support according to production and operation requirements is facilitated.

Existing quick connectors are generally classified into mechanical and hydraulic types. The mechanical quick connector is mostly locked by a spring, and the elastic force of the spring is limited, so that the joint is easy to loosen, and even the working part falls off in severe cases, thereby resulting in safety accidents. The quick connector is characterized in that an adjusting screw is arranged on some mechanical quick connectors, the screw rotates to drive one connecting piece to move to adjust the distance between the two connecting pieces so as to be matched with a shaft on a working device, the requirements on the positions of the connecting piece and the shaft on the working device are strict, so that the application range of the quick connector is limited, and the connecting piece is provided with a screw support, so that the structure of the quick connector is relatively complex, meanwhile, the screw is exposed outside, the support strength of the screw is limited, the adjustment of the screw is easily influenced by external factors, and the service life of the screw is influenced.

The hydraulic quick connector drives the connecting piece to fasten or release through the oil cylinder, and compared with a mechanical quick connector, the hydraulic quick connector has the advantages of wide application range, long service life and more stable operation process.

The hydraulic quick connectors currently available in the industry also have the following disadvantages: when the working devices such as a breaking hammer and an injection head are connected, tools such as a wrench and the like are needed to be manually used for connecting a mechanical arm support and a hydraulic oil pipe joint on the working device, and the device has a progress space in the aspects of operation convenience and efficiency improvement; meanwhile, after the hydraulic oil pipe joint is connected and detached for many times, sealing is easy to lose efficacy, hydraulic oil leakage is caused, pressure of a working device system is unstable, and potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a quick connector which can realize quick connection between a mechanical arm support and a hydraulic oil circuit on a working device and has good sealing performance so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides a quick connector for automatically connecting a hydraulic oil way, which is used for connecting a mechanical arm frame and a working device, wherein a first connecting shaft and a second connecting shaft which are parallel to each other are arranged on the working device, the quick connector comprises a connector body and a second hydraulic quick connector arranged on the working device, and the second hydraulic quick connector is connected with an oil pipe in the working device.

The connector body comprises a frame body connected with the mechanical arm support, a swing hook arranged on the frame body, a hydraulic adjusting mechanism and a hydraulic quick connector I, the first hydraulic quick connector is connected with an oil pipe in the mechanical arm support, a first arc plate used for clamping the first connecting shaft is fixedly arranged on the frame body, the inner diameter of the first arc plate is matched with the outer diameter of the first connecting shaft, one end of the swing hook is rotatably connected with the frame body, the other end of the swing hook is provided with a second arc plate used for clamping a second connecting shaft, the inner diameter of the second arc plate is matched with the outer diameter of the second connecting shaft, the opening directions of the two arc plates are deviated (namely the clamping position of the two arc plates and the corresponding connecting shaft is positioned at the opposite side of the two connecting shafts), the hydraulic adjusting mechanism comprises a control oil cylinder, and a piston rod of the control oil cylinder is in linkage arrangement with the swing hook; under the action of the hydraulic adjusting mechanism, the distance between the second arc plate and the first arc plate is matched with the distance between the first connecting shaft and the second connecting shaft, and the first hydraulic quick connector and the second hydraulic quick connector are correspondingly connected to form a hydraulic circulating oil circuit between the working device and the mechanical arm frame.

Preferably, a guide pin shaft is arranged on the first hydraulic quick connector, and a matched guide hole is correspondingly arranged on the second hydraulic quick connector; or a guide pin shaft is arranged on the second hydraulic quick connector, and a matched guide hole is correspondingly arranged on the first hydraulic quick connector.

Preferably, a third arc plate used for clamping the second connecting shaft is fixedly arranged on the frame body, the inner diameter of the third arc plate is matched with the outer diameter of the second connecting shaft, and the distance between the third arc plate and the first arc plate is matched with the distance between the first connecting shaft and the second connecting shaft.

Preferably, the third arc plate corresponds to a central angle of less than 180 °.

Preferably, the central angles corresponding to the first circular arc plate and the second circular arc plate are both less than or equal to 180 °.

Preferably, the frame body is further provided with a positioning pin shaft for limiting the swing hook.

Preferably, the hydraulic adjusting mechanism further comprises a control oil pipe, a bidirectional hydraulic lock and an oil pipe joint, one end of the control oil cylinder is connected with the swing hook through a first pin shaft, the other end of the control oil cylinder is connected with the frame body through a second pin shaft, one end of the oil pipe is connected with the control oil cylinder through the oil pipe joint, the other end of the oil pipe is connected with the bidirectional hydraulic lock through the oil pipe joint, and the bidirectional hydraulic lock is fixedly arranged on the frame body.

Preferably, the swing hook further comprises a hook-shaped body and a shaft sleeve, the hook-shaped body is provided with a hinge pin shaft hole used for connecting the frame body and an oil cylinder pin shaft hole used for connecting a piston rod of the control oil cylinder, and the shaft sleeve is installed in the hinge pin shaft hole and used for reducing relative motion friction between the hook-shaped body and the frame body.

Preferably, a first shaft and a second shaft which are used for connecting the mechanical arm support are arranged on the frame body, and the first shaft, the second shaft, the first connecting shaft and the second connecting shaft are arranged in parallel.

Preferably, the support body includes that the curb plate that two parallels and symmetry set up and the two form between them and be used for holding swing hook, hydraulic pressure adjustment mechanism and the hydraulic pressure cavity structures of quick joint one, the both ends of axle one and axle two are equallyd divide and do not are connected with two curb plates are perpendicular, are equipped with the mounting panel that is used for installing hydraulic pressure quick joint one between two curb plates be equipped with axle one mounting hole, axle two mounting holes, swing hook connecting hole, control cylinder connecting hole and swing hook locating hole on the curb plate, the locating pin axle is connected with swing hook locating hole.

The technical scheme provided by the invention at least has the following beneficial effects:

1. the quick connector provided by the invention is simple in structure and convenient to operate, automatic quick connection between the mechanical arm support and the working device is realized through the matched hydraulic quick connector I and the hydraulic quick connector II, the operation of manually assisting in connecting a hydraulic oil pipe is omitted, only about 10 seconds are needed for replacing different working devices, the working efficiency is greatly improved, and the two hydraulic quick connectors are also provided with the matched guide pin shafts and guide holes, so that the automatic and reliable butt joint of the oil pipes in the connection process can be met.

2. According to the quick connector provided by the invention, the first arc plate and the second arc plate which are opposite in bending direction are arranged, and the third arc plate is matched, so that the connector body and the working device are fastened and clamped, the defect of insufficient clamping force is avoided, the second arc plate is ensured not to be loosened in the clamping process by arranging the positioning pin shaft, and the safety is improved.

3. The quick connector provided by the invention adjusts the gap between the second arc plate and the third arc plate by controlling the swing hook to rotate, so that the quick connector has wider application range and good popularization.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a front sectional view of a quick connector in embodiment 1 of the invention;

FIG. 2 is a plan view of the quick connector in embodiment 1 of the present invention;

FIG. 3 is a schematic view of the frame of FIG. 1 (from a rear perspective);

FIG. 4 is a schematic structural view (back view) of the first connecting shaft, the second connecting shaft and the second hydraulic quick coupler of FIG. 1 mounted on a working device;

FIG. 5 is a schematic view of the construction of the swing hook of FIG. 1 (from a back view);

fig. 6 is a schematic view (rear view) of the internal structure of the connector body of fig. 1;

FIG. 7 is a schematic view of the external structure of the connector body of FIG. 1;

in the figure: 01, a working device, 02, a first connecting shaft, 03, a second connecting shaft, 1, 2, 3, two, 4 swing hooks, 5, a hydraulic adjusting mechanism, 6, 7, a hydraulic quick connector, 8, a first arc plate, 9, a third arc plate and 10, wherein the first connecting shaft, the second swing hook, the second hydraulic quick connector and the third arc plate are connected in sequence;

1.1 side plate, 1.2 mounting plate, 1.3 shaft I mounting hole, 1.4 shaft II mounting hole, 1.5 swing hook connecting hole, 1.6 control oil cylinder connecting hole and 1.7 swing hook positioning hole;

4.1 hook-shaped body, 4.2 hinge pin shaft holes, 4.3 cylinder pin shaft holes, 4.4 second arc plate and 4.5 shaft sleeve;

5.1 control cylinder, 5.2 control oil pipe, 5.3 two-way hydraulic lock, 5.4 oil pipe joint, 5.5 first round pin axle, 5.6 second round pin axle.

7.1 guiding the pin shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.