CN116293146A

CN116293146A - Self-positioning hydraulic quick-changing device with changeable hydraulic connector

Info

Publication number: CN116293146A
Application number: CN202310276376.4A
Authority: CN
Inventors: 仲军; 江文俊; 张文豪
Original assignee: Changzhou Campus of Hohai University
Current assignee: Changzhou Campus of Hohai University
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-23

Abstract

The invention discloses a self-positioning hydraulic quick-changing device with a replaceable hydraulic joint, which comprises an upper connecting frame and a lower connecting frame. The quick-change device uses the electric putter drive slider to realize the connection and the disconnection of hydraulic pressure joint in order to control the break-make of hydraulic pressure oil circuit, and whole movable slider device passes through the linear slide rail and installs on the casing, can remove on the casing, and the reference column on the slider can be with the connecting block locating hole guide slider removal of lower link, the public first female butt joint of guide. The invention adopts a modularized design, and can change different sliding blocks and connecting blocks according to different hydraulic joint types, the whole device basically adopts bolt connection, so that the different sliding blocks and connecting block modules can be conveniently detached and replaced, and different hydraulic joints can be selected according to specific conditions; the invention uses the electric push rod as the drive, which is convenient to control; the positioning holes of the positioning columns can guide the hydraulic joints to be in butt joint, so that the hydraulic mechanical arm with low precision is easy to complete the replacement of the accessory.

Description

Self-positioning hydraulic quick-changing device with changeable hydraulic connector

Technical Field

The invention relates to a self-positioning hydraulic quick-changing device with a replaceable hydraulic joint, and belongs to the technical field of engineering machinery.

Background

Common engineering machinery equipment such as excavators, bulldozers, cranes, breaking hammers, etc. These equipments are good in universality, strong in applicability, capable of being allocated in a large area, often become main battle equipments in earthquake rescue, but limited by the working attribute, the functions of engineering mechanical equipment are single, the interchangeability of operation accessories is poor, the disassembly and assembly of the accessories are complex and time-consuming, and manual operation of on-site staff is required, so that the rescue efficiency is low. In addition, considering the limited traffic in disaster areas, multiple engineering mechanical equipment cannot be allowed to work cooperatively at the same time, so that one equipment or one working arm is required to realize multiple functions of grabbing and carrying, breaking and shearing, bulldozing and excavating and the like. Meanwhile, because the field environment is complex, various dangerous factors exist, and an operator is not allowed to disassemble and assemble the accessories, the requirements of automatic and quick switching of the operation accessories are met.

The key technology of the accessory quick-change device of the emergency rescue equipment is the design of an automatic on-off scheme of an accessory hydraulic oil way. The traditional butt joint is widely applied, but the participation of personnel is needed, and the requirement of unmanned automatic operation cannot be met.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a self-positioning hydraulic quick-change device with a replaceable hydraulic joint, which can realize disconnection and locking of a hydraulic oil way and automatic alignment of a butt joint.

In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:

in a first aspect, the present invention provides a self-positioning hydraulic quick-change device with a replaceable hydraulic joint, comprising:

the upper connecting frame is provided with a main electric push rod and a sliding block arranged at the output end of the main electric push rod, and the sliding block is provided with a hydraulic joint female head;

the lower connecting frame is connected with the upper connecting frame in a shaft way, and a hydraulic joint male head matched with the hydraulic joint female head is arranged on the lower connecting frame;

wherein: the hydraulic joint female head is driven by the main electric push rod to be connected with and disconnected from the hydraulic joint male head.

Further, go up the link still and include first casing, linear slide rail and electric putter mount pad, the linear slide rail is installed on first casing, main electric putter one end is installed on the linear slide rail, and the other end is connected with the electric putter mount pad of installing on the slider.

Further, go up the link still and include two nylon sliders, two nylon dog are located the both sides of first casing respectively, and two nylon Long Huakuai are located in the nylon dog of both sides respectively in the slip, and two nylon sliders are connected to the both sides of slider respectively.

Further, the hydraulic joint on the sliding block is a female joint of the two-end opening and closing type ISO7241 hydraulic joint, and the female joint of the two-end opening and closing type ISO7241 hydraulic joint is arranged on the sliding block through a locking ring and a transition joint.

Furthermore, a small electric push rod is further arranged on the sliding block and connected with the locking ring, and is used for controlling the movement of the locking ring.

Furthermore, the hydraulic connector used on the sliding block is a planar automatic butt joint female connector, and the planar automatic butt joint female connector is fixed on the sliding block through a clamp by using threads.

Further, the lower connecting frame comprises a second shell, a second connecting shaft, a first connecting shaft and a connecting block, wherein the second connecting shaft and the first connecting shaft are respectively arranged at two ends of the second shell, a clamping groove matched with the second connecting shaft is formed in the second shell, the connecting block is arranged on the first connecting shaft through a bolt, and the male head of the hydraulic connector is fixedly connected to the connecting block.

Further, a positioning column is arranged on the sliding block through a connecting pin shaft, a positioning hole matched with the positioning column is formed in the second shell, and the tail end of the positioning column and the inlet of the positioning hole are arc-shaped.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention provides a self-positioning hydraulic quick-change device with a replaceable hydraulic joint, which is characterized in that a main electric push rod drives a female joint of the hydraulic joint and a male joint of the hydraulic joint to be connected and disconnected, so that disconnection and locking of a hydraulic oil way can be realized; the electric push rod is simple to control and compact in structure, different types of electric push rods can be selected according to different use requirements, and positioning and other operations can be easily realized;

2. the hydraulic connector can be matched with two hydraulic connectors with different standards, can be replaced with each other according to the use environment and requirements, and solves the problems that when the existing emergency rescue equipment is used for replacing an operation accessory, the accessory is difficult to be automatically connected with a hydraulic oil way of a working host, so that the replacement operation accessory needs to be manually participated, is long in time consumption, is poor in safety and the like;

3. according to the invention, through the arrangement of the linear slide rail, the positioning column and the positioning hole, the alignment connection of the hydraulic joints is automatically guided in the connection process of the upper connecting frame and the lower connecting frame, so that the precise butt joint of the hydraulic joints is realized on some machines with tail end positioning precision.

Drawings

FIG. 1 is a block diagram of an overall hydraulic quick-change device according to an embodiment of the present invention;

FIG. 2 is a block diagram of an upper link provided in an embodiment of the present invention;

FIG. 3 is a schematic view of a slider structure according to an embodiment of the present invention;

FIG. 4 is a schematic view of a lower connecting frame according to an embodiment of the present invention;

fig. 5 is a schematic installation diagram of a slider electric push rod according to an embodiment of the present invention;

fig. 6 is a schematic view of hydraulic joint docking provided in an embodiment of the present invention.

Wherein: 01. an upper connecting frame; 02. a lower connecting frame; 1. a first housing; 2. a linear slide rail; 3. a main electric push rod; 4. a nylon slide block; 5. a nylon stop; 6. a slide block; 7. an electric push rod mounting seat; 8. a connecting pin shaft; 9. positioning columns; 10. a locking ring mounting seat; 11. a locking ring; 12. female connectors of two-end opening and closing type ISO7241 hydraulic connectors; 13. a small electric push rod; 14. a transition joint; 15. automatic butt joint of the plane connects the female joint; 16. a clip; 17. a second housing; 18. a first connecting shaft; 19. a connecting block; 20. a hydraulic joint male; 21. a second connecting shaft; 22. fixing bolts for the electric push rod mounting seats; 23. and fixing bolts of the electric push rod.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.

Example 1

As shown in fig. 1 and 2, this embodiment describes a self-positioning hydraulic quick-changing device with a replaceable hydraulic joint, which comprises an upper connecting frame 01 and a lower connecting frame 02;

the upper connecting frame 01 is used for being connected with a hydraulic mechanical arm and comprises a first shell 1, a linear slide rail 2, a main electric push rod 3, a nylon slide block 4, a nylon stop block 5, a slide block 6 and an electric push rod mounting seat 7, wherein the linear slide rail 2, the nylon slide block 4 and the nylon stop block 5 are mounted on the first shell 1 through bolts, one end of the main electric push rod 3 is mounted on the linear slide rail 2, the other end of the main electric push rod 3 is connected with the electric push rod mounting seat 7 mounted on the slide block 6, so that the main electric push rod 3 can push the slide block 6 to move forwards and backwards, and simultaneously the main electric push rod 3 and the slide block 6 can integrally move left and right on the shell; according to the different hydraulic joints which are required to be connected, the structure of the sliding block 6 can be correspondingly modified, so that different hydraulic joints can be used on one set of hydraulic quick-change device.

As shown in fig. 3, the sliding block 6 comprises a sliding block a and a sliding block b, and a connecting pin shaft 8 and a positioning column 9 are arranged on the sliding block a and the sliding block b; the hydraulic joint on the sliding block a is a female joint 12 of a two-end opening and closing type ISO7241 hydraulic joint, and comprises a locking ring 11 which is arranged on the sliding block a through being connected with a transition joint 14, and a small electric push rod 13 and a locking ring mounting seat 10 which is matched with the locking ring 11 are also arranged on the sliding block a, so that the movement of the locking ring 11 can be controlled; the hydraulic connector used on the sliding block b is a plane automatic butt joint female connector 15 which is fixed on the sliding block b through a clamp 16 by threads, and is correspondingly matched designed according to the type, structure and characteristics of the hydraulic connector by adopting a modularized design, and the hydraulic connector is arranged on the upper and lower connecting frames 02 through bolts, so that the hydraulic connector is very convenient to detach and replace, and the whole device can have various application scenes;

as shown in fig. 4, the lower connecting frame 02 is used for connecting with a working attachment, and comprises a second shell 17, a first connecting shaft 18, a second connecting shaft 21 and a connecting block 19, wherein the second connecting shaft 21 and the first connecting shaft 18 are both fixed on the second shell 17, the connecting block 19 is mounted on the first connecting shaft 18 through bolts, and a hydraulic joint male head 20 and a transition joint 14 (not shown in the figure) are connected and fixed on the connecting block 19; the connecting block 19 of the lower connecting frame 02 is provided with a corresponding positioning hole; the end of the positioning column 9 and the entrance of the positioning hole are arc-shaped, so that the positioning column 9 can slide into the positioning hole under the action of the main electric push rod 3 in the connection process, the whole sliding block 6 can be driven to move on the linear sliding rail 2, the machining precision of the positioning column 9 and the positioning hole is high, and the butting precision of the hydraulic joint is guaranteed.

As shown in fig. 1 to 6, the specific workflow of the whole set of the mechanism is as follows: when in connection, the upper connecting frame 01 is aligned with the lower connecting frame 02 at first, the main electric push rod 3 drives the sliding block 6 to move, so that the connection of the hydraulic male head and the hydraulic female head is realized, the positioning column 9 on the sliding block 6 is aligned with the positioning hole on the connecting block 19 on the lower connecting frame 02 at first in the connection process, the tail end of the positioning column 9 and the inlet of the positioning hole are smoothly processed, and the wedging can be realized under the acting force of the main electric push rod 3; in the process, the positioning column 9 drives the sliding block 6 to move relative to the second shell 17 on the linear sliding rail 2, after the positioning column 9 is aligned with the positioning hole, the hydraulic joint female head and the hydraulic joint male head 20 can be aligned, the hydraulic joint female head and the hydraulic joint male head 20 are aligned to complete connection, the connecting pin shaft 8 of the upper connecting frame 01 and the first shell 1 can clamp the first connecting shaft 18 on the lower connecting frame 02, the upper connecting frame 02 and the lower connecting frame 02 are locked, and the accessory can carry out related operation along with the mechanical arm; when the hydraulic male head and the hydraulic female head are disconnected, the main electric push rod 3 drives the sliding block 6 to move.

When the joint is replaced, firstly, the nylon stop block 5 fixed on the shell by the bolts is detached, then according to fig. 5, the electric push rod installation seat 7 can be detached by unscrewing the electric push rod installation seat 7 fixing bolts and the electric push rod fixing bolts 23, then the sliding blocks 6 can be detached from the upper link frame, and then another set of sliding block 6 module is replaced, and according to the steps, the joint of the upper connecting frame 01 is replaced by the bolts; subsequently, the four connecting block 19 fixing bolts (not shown) on the shaft of the connecting frame 02 are unscrewed, and the connecting block 19 module of another set of joints can be replaced.

The invention adopts a modularized design, and can change different sliding blocks 6 and connecting blocks 19 according to different hydraulic joint types, and the whole device is basically connected by bolts, so that the invention is convenient for disassembling and replacing different sliding blocks 6 and connecting blocks 19 modules. The two different hydraulic joints can obtain different effects, when the two-end opening and closing type ISO7241 hydraulic joint is used, the hydraulic oil way can be locked after connection, and the tightness and the connection reliability in the use process are ensured; when the plane automatic butt joint is used, the whole structure is simpler, the hydraulic oil way is switched on and off only by one electric push rod, and the self-locking capability of the electric push rod can also ensure the reliability of oil way connection.

The linear slide rail 2, the positioning column 9 and the positioning hole used in the invention automatically guide the alignment connection of the hydraulic joints in the connection process of the upper and lower connecting frames 02, so that the invention can realize the accurate butt joint of the hydraulic joints on some machines with tail end positioning precision.

The power device used in the invention is an electric push rod, the electric push rod is simple to control and compact in structure, different types of electric push rods can be selected according to different use requirements, and the operations such as positioning and the like can be easily realized to include an upper connecting frame 01 and a lower connecting frame 02;

as shown in fig. 4, the lower connecting frame 02 is used for connecting with a working attachment, and comprises a second shell 17, a first connecting shaft 18, a second connecting shaft 21 and a connecting block 19, wherein the second connecting shaft 21 and the first connecting shaft 18 are both fixed on the shell, the connecting block 19 is mounted on the first connecting shaft 18 through bolts, and a hydraulic joint male head 20 and a transition joint 14 (not shown in the figure) are connected and fixed on the connecting block 19; the connecting block 19 of the lower connecting frame 02 is provided with a corresponding positioning hole; the end of the positioning column 9 and the entrance of the positioning hole are arc-shaped, so that the positioning column 9 can slide into the positioning hole under the action of the main electric push rod 3 in the connection process, the whole sliding block 6 can be driven to move on the linear sliding rail 2, the machining precision of the positioning column 9 and the positioning hole is high, and the butting precision of the hydraulic joint is guaranteed.

As shown in fig. 1 to 6, the specific workflow of the whole set of the mechanism is as follows: when in connection, the upper connecting frame 01 is aligned with the lower connecting frame 02 at first, the main electric push rod 3 drives the sliding block 6 to move, so that the connection of the hydraulic male head and the hydraulic female head is realized, the positioning column 9 on the sliding block 6 is aligned with the positioning hole on the connecting block 19 on the lower connecting frame 02 at first in the connection process, the tail end of the positioning column 9 and the inlet of the positioning hole are smoothly processed, and the wedging can be realized under the acting force of the main electric push rod 3; in the process, the positioning column 9 drives the sliding block 6 to move relative to the second shell 17 on the linear slide rail 2, after the positioning column 9 is aligned with the positioning hole, the hydraulic joint female head and the hydraulic joint male head 20 can be aligned with each other, the hydraulic joint female head and the hydraulic joint male head 20 are aligned to complete connection, the connecting pin shaft 8 of the upper connecting frame 01 and the first shell 1 can clamp the first connecting shaft 18 and the second connecting shaft 21 on the lower connecting frame 02, the upper connecting frame 02 and the lower connecting frame 02 can be locked, and the accessory can carry out related operation along with the mechanical arm; when the hydraulic male head and the hydraulic female head are disconnected, the main electric push rod 3 drives the sliding block 6 to move.

The power device used in the invention is an electric push rod, the control of the electric push rod is simple, the structure is compact, and meanwhile, different types of electric push rods can be selected according to different use requirements, and the operations such as positioning and the like can be easily realized.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.

Claims

1. The utility model provides a hydraulic pressure connects interchangeable self-align hydraulic pressure quick change device which characterized in that includes:

the hydraulic connector comprises an upper connecting frame (01), wherein a main electric push rod (3) and a sliding block (6) arranged at the output end of the main electric push rod (3) are arranged on the upper connecting frame (01), and a hydraulic connector female head is arranged on the sliding block (6);

the lower connecting frame (02) is in shaft connection with the upper connecting frame (01), and a hydraulic joint male head (20) matched with the hydraulic joint female head is arranged on the lower connecting frame (02);

wherein: the hydraulic joint female head is driven by the main electric push rod (3) to be connected with and disconnected from the hydraulic joint male head (20).

2. The self-positioning hydraulic quick-change device with the replaceable hydraulic joint according to claim 1, wherein the upper connecting frame (01) further comprises a first shell (1), a linear sliding rail (2) and an electric push rod mounting seat (7), the linear sliding rail (2) is mounted on the first shell (1), one end of the main electric push rod (3) is mounted on the linear sliding rail (2), and the other end of the main electric push rod is connected with the electric push rod mounting seat (7) mounted on the sliding block (6).

3. The self-positioning hydraulic quick-change device with replaceable hydraulic joint according to claim 2, wherein the upper connecting frame (01) further comprises two nylon sliding blocks (4) and two nylon stop blocks (5), the two nylon stop blocks (5) are respectively arranged on two sides of the first shell (1), the two nylon sliding blocks (4) are respectively arranged in the nylon stop blocks (5) on two sides in a sliding manner, and the two nylon sliding blocks (4) are respectively connected to two sides of the sliding block (6).

4. The self-positioning hydraulic quick-change device with replaceable hydraulic joint according to claim 1, characterized in that the hydraulic joint on the slide block (6) is a female joint (12) of a two-end opening and closing type ISO7241 hydraulic joint, and the female joint (12) of the two-end opening and closing type ISO7241 hydraulic joint is mounted on the slide block (6) through a locking ring (11) and a transition joint (14).

5. The self-positioning hydraulic quick-change device with replaceable hydraulic joint according to claim 4, wherein the sliding block (6) is further provided with a small electric push rod (13) connected with the locking ring (11) for controlling the movement of the locking ring (11).

6. The self-positioning hydraulic quick-change device with replaceable hydraulic joint according to claim 1, characterized in that the hydraulic joint used on the slide block (6) is a planar automatic butt joint female joint (15), and the planar automatic butt joint female joint (15) is fixed on the slide block (6) by a clip (16) through threads.

7. The self-positioning hydraulic quick-change device with replaceable hydraulic joint according to claim 2, characterized in that the lower connecting frame (02) comprises a second shell (17), a first connecting shaft (18), a second connecting shaft (21) and a connecting block (19), the first connecting shaft (18) and the second connecting shaft (21) are respectively arranged at two ends of the second shell (17), clamping grooves matched with the second connecting shaft (21) are formed in the second shell (17), the connecting block (19) is mounted on the first connecting shaft (18) through bolts, and the hydraulic joint male head (20) is fixedly connected to the connecting block (19).

8. The self-positioning hydraulic quick-change device with the replaceable hydraulic joint according to claim 7, characterized in that a positioning column (9) is installed on the sliding block (6) through a connecting pin shaft (8), positioning holes matched with the positioning column (9) are formed in the second shell (17), and the tail end of the positioning column (9) and the inlet of the positioning holes are arc-shaped.