Hydraulic valve group and rotary joint integrated arrangement structure for small hydraulic wrist

Abstract

The utility model discloses a hydraulic valve bank and rotary joint integrated arrangement structure for a small hydraulic wrist, which comprises a connecting frame body, a rotary table and a valve bank device, a swing oil cylinder is arranged on the side wall of the connecting frame body, the rotary table is movably connected with the bottom end of the connecting frame body, the rotary table is movably connected with the bottom end of the swing oil cylinder, and the valve bank device is connected with the swing oil cylinder. A rotary motor body is installed on the side wall of the rotary table, a clamping jaw module is installed at the bottom end of the rotary table, a quick-change oil cylinder body is installed in an inner cavity of the rotary table, and a valve set device is installed at the upper end of the rotary table. The problems that hydraulic valve sets used by hydraulic wrists in the current market are of a side-by-side arrangement structure, namely, electromagnetic valves are installed on the top face of a main valve and arranged in a line, a center rotating connector and the valve sets are arranged in a split mode, the occupied space is large, and the design requirement for the compact structure of the hydraulic wrists cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic wrist technical field, concretely relates to a small -size hydraulic wrist hydraulic valve group and swivel joint integration arrangement structure. BACKGROUND

[0002] Hydraulic wrist is a kind of mechanical device that realizes multi-degree-of-freedom motion by hydraulic drive, is widely used in engineering machinery, industrial robot etc., and significantly improves work efficiency by the combination of hydraulic technology and mechanical design.

[0003] In the design and manufacture process of excavator hydraulic wrist, due to limited space, hydraulic system needs to be highly integrated, and the hydraulic valve group used in the hydraulic wrist on the market adopts side-by-side arrangement structure, i.e. the electromagnetic valves are installed in a line on the top surface of the main valve, and the center swivel joint and the valve group are in split layout, which occupies a large space and cannot meet the design requirement of compact structure of the hydraulic wrist.

[0004] To solve the above problems, a small hydraulic wrist hydraulic valve group and swivel joint integration arrangement structure is provided in the present application. UTILITY MODEL CONTENTS

[0005] In view of the problems in the related art, the utility model provides a small hydraulic wrist hydraulic valve group and swivel joint integration arrangement structure, which can achieve the purpose of highly compact hydraulic valve group.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] A small hydraulic wrist hydraulic valve group and swivel joint integration arrangement structure includes a connecting frame body, a rotary table and a valve group device, a swing oil cylinder is installed on the side wall of the connecting frame body, a rotary table is movably connected to the bottom end of the connecting frame body, the rotary table is movably connected to the bottom end of the swing oil cylinder, a rotary motor main body is installed on the side wall of the rotary table, a clamping jaw module is installed at the bottom end of the rotary table, a quick-change oil cylinder main body is installed in the inner cavity of the rotary table, and a valve group device is installed at the upper end of the rotary table.

[0008] The valve group device includes a main valve, a rotary motor electromagnetic valve is installed on the left side wall of the main valve, a clamping jaw electromagnetic valve is installed on the right side wall of the main valve, a swivel joint main body is installed at the bottom end of the main valve, a quick-change oil cylinder electromagnetic valve is installed on the back wall of the main valve, and a rotary motor overflow valve is installed on the front wall of the main valve.

[0009] As a further scheme of the utility model, the inlet and return oil ports of the rotary motor electromagnetic valve, the clamping jaw electromagnetic valve and the quick-change oil cylinder electromagnetic valve are connected in communication with the main oil inlet and the main oil return port on the left and right side walls of the main valve through internal oil circuits.

[0010] As a further scheme of the utility model, the two working oil ports of the rotary motor electromagnetic valve are communicated with the two rotary motor oil ports on the front wall of the main valve through internal oil paths.

[0011] As a further scheme of the utility model, the working oil ports of the clamping jaw electromagnetic valve and the quick-change oil cylinder electromagnetic valve are communicated with the joint oil ports on the bottom surface of the rotary joint main body through internal oil paths.

[0012] As a further scheme of the utility model, the two working oil ports of the rotary motor overflow valve are communicated with the two rotary motor oil ports in front of the main valve through internal oil paths, for limiting the maximum working pressure of the rotary motor.

[0013] As a further scheme of the utility model, the connecting frame body is connected with the mechanical arm of the excavator.

[0014] The utility model has the advantages that:

[0015] The utility model integrates the rotary motor electromagnetic valve, the clamping jaw electromagnetic valve, the rotary joint main body, the quick-change oil cylinder electromagnetic valve and the rotary motor overflow valve with the main valve, realizes the high integration of the main valve and the center joint, can realize the purpose of compact space, and the modular layout can improve reliability and maintainability. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a use state schematic view of a small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure according to an embodiment of the utility model;

[0018] Figure 2 It is a part valve group device structure schematic view of a small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure according to an embodiment of the utility model;

[0019] Figure 3 It is a joint oil port and quick-change oil cylinder electromagnetic valve schematic view of a small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure according to an embodiment of the utility model;

[0020] Figure 4 It is a valve group device installation schematic view of a small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure according to an embodiment of the utility model;

[0021] Figure 5 is a small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure quick change oil cylinder main body schematic diagram according to the embodiment of the utility model.

[0022] In the figure,

[0023] 1, connecting frame body; 2, rotary table; 3, valve group device; 4, swing oil cylinder; 5, rotary motor main body; 6, clamping jaw module; 7, quick change oil cylinder main body; 8, main valve; 9, rotary motor solenoid valve; 10, clamping jaw solenoid valve; 11, rotary joint main body; 12, quick change oil cylinder solenoid valve; 13, rotary motor overflow valve; 14, main oil inlet; 15, main oil return; 16, rotary motor oil port; 17, joint oil port. DETAILED DESCRIPTION

[0024] To further illustrate the embodiments, the utility model provides with the drawing, these drawings are part of the utility model disclosure, mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operating principle of the embodiment, cooperate with reference to these contents, and the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the figure are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0025] According to the embodiment of the utility model, a small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure are provided.

[0026] Please refer to the attached drawings of the specification Figures 1-5The utility model discloses a small -size hydraulic wrist hydraulic valve group and rotary joint integration arrangement structure, including connecting frame body 1, swivel table 2 and valve group device 3, the lateral wall on connecting frame body 1 is installed with swing oil cylinder 4, the bottom movable joint of connecting frame body 1 has swivel table 2, the bottom movable joint of swivel table 2 with swing oil cylinder 4, the lateral wall on swivel table 2 is installed with swivel motor main part 5, the bottom of swivel table 2 is installed with jaw module 6, the inner chamber in swivel table 2 is installed with quick -change oil cylinder main part 7, the upper end of swivel table 2 is installed with valve group device 3, valve group device 3 includes main valve 8, the left lateral wall of main valve 8 is installed with swivel motor solenoid valve 9, the right lateral wall of main valve 8 is installed with jaw solenoid valve 10, the bottom of main valve 8 is installed with rotary joint main part 11, the back wall on main valve 8 is installed with quick -change oil cylinder solenoid valve 12, the front wall on main valve 8 is installed with swivel motor overflow valve 13, two working oil ports of swivel motor overflow valve 13 are communicated with two swivel motor oil ports 16 located in the front of main valve 8 respectively through internal oil circuit, for limiting the highest working pressure of swivel motor, the inlet and return oil port of swivel motor solenoid valve 9, jaw solenoid valve 10 and quick -change oil cylinder solenoid valve 12 are connected with main inlet oil port 14 and main return oil port 15 located on the left and right lateral wall of main valve 8 respectively through internal oil circuit, two working oil ports of swivel motor solenoid valve 9 are connected with two swivel motor oil ports 16 located on the front wall of main valve 8 respectively through internal oil circuit, the working oil port of jaw solenoid valve 10 and quick -change oil cylinder solenoid valve 12 is connected with joint oil port 17 located on the bottom surface of rotary joint main part 11 respectively through internal oil circuit. Through the integration of swivel motor solenoid valve 9, jaw solenoid valve 10, rotary joint main part 11, quick -change oil cylinder solenoid valve 12 and swivel motor overflow valve 13 and main valve 8, the high integration of main valve 8 and center joint is realized, and then the purpose of compact space can be realized, and the reliability and maintainability can be improved by modular layout.

[0027] In an embodiment, please refer to the description attached Figure 1 And Figure 5 As a further scheme of the utility model, the connecting frame body 1 is connected with the mechanical arm of the excavator. The connecting frame body 1 is arranged to facilitate the installation of the hydraulic wrist.

[0028] Work flow: when using, first, the components in the hydraulic wrist are installed in place, then the hydraulic wrist is installed at the mechanical arm of the excavator through the connecting frame body 1, when working, the swing oil cylinder 4 body drives the swivel table 2 and the jaw module 6 to swing, and the swivel motor main part 5 drives the jaw module 6 to rotate through the swivel table 2.

[0029] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A small hydraulic wrist hydraulic valve group and rotary joint integrated arrangement structure, comprising a connecting frame body (1), a rotary table (2) and a valve group device (3), characterized in that: The side wall of the connecting frame body (1) is provided with a swing oil cylinder (4), the bottom end of the connecting frame body (1) is movably connected with a rotary table (2), the rotary table (2) is movably connected with the bottom end of the swing oil cylinder (4), the side wall of the rotary table (2) is provided with a rotary motor body (5), the bottom end of the rotary table (2) is provided with a gripper module (6), the inner cavity of the rotary table (2) is provided with a quick-change oil cylinder body (7), and the upper end of the rotary table (2) is provided with a valve group device (3). The valve group device (3) comprises a main valve (8), a rotary motor electromagnetic valve (9) is arranged on the left side wall of the main valve (8), a gripper electromagnetic valve (10) is arranged on the right side wall of the main valve (8), a rotary joint body (11) is arranged at the bottom end of the main valve (8), a quick-change oil cylinder electromagnetic valve (12) is arranged on the rear wall of the main valve (8), and a rotary motor overflow valve (13) is arranged on the front wall of the main valve (8).

2. The hydraulic valve group and rotary joint integrated arrangement structure for a small hydraulic wrist according to claim 1, characterized in that: The inlet and return oil ports of the rotary motor electromagnetic valve (9), the gripper electromagnetic valve (10) and the quick-change oil cylinder electromagnetic valve (12) are connected with the main inlet port (14) and the main return oil port (15) on the left and right side walls of the main valve (8) through internal oil paths.

3. The hydraulic valve group and rotary joint integrated arrangement structure for a small hydraulic wrist according to claim 1, characterized in that: The two working oil ports of the rotary motor electromagnetic valve (9) are connected with the two rotary motor oil ports (16) on the front wall of the main valve (8) through internal oil paths.

4. The hydraulic valve group and rotary joint integrated arrangement structure for a small hydraulic wrist according to claim 1, characterized in that: The working oil ports of the gripper electromagnetic valve (10) and the quick-change oil cylinder electromagnetic valve (12) are connected with the joint oil port (17) on the bottom surface of the rotary joint body (11) through internal oil paths.

5. The hydraulic valve group and rotary union integrated arrangement for a small hydraulic wrist of claim 1, wherein: The two working oil ports of the rotary motor overflow valve (13) are connected with the two rotary motor oil ports (16) in front of the main valve (8) through internal oil paths, and are used for limiting the maximum working pressure of the rotary motor.

6. The hydraulic valve group and rotary union integrated arrangement for a small hydraulic wrist of claim 1, wherein: The connecting frame body (1) is connected with the mechanical arm of the excavator.

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