Oil cylinder synchronous hydraulic control device

Abstract

The utility model relates to an oil cylinder synchronous hydraulic control device, which belongs to the technical field of hydraulic control and comprises a mounting bottom plate, a hydraulic oil tank is fixedly mounted at the top of the mounting bottom plate, a distribution valve is fixedly mounted at the top of the hydraulic oil tank, and two groups of distribution pipes are fixedly mounted on one side of the distribution valve. According to the oil cylinder synchronous hydraulic control device, a displacement monitoring assembly is arranged on the surface of a hydraulic oil cylinder, scale marks are carved on the surface of a stroke shaft of the hydraulic oil cylinder, the extending length of the stroke shaft of the hydraulic oil cylinder is detected through a scale scanner in the displacement monitoring assembly, and the extending length value is transmitted to a controller; by means of displacement value signals received by the controller, the distribution valves are controlled to work, the extending lengths of the hydraulic oil cylinders are controlled, and the problems that in the working process of the oil cylinders, all parts are prone to abrasion, aging and the like, oil cylinder movement deviates, and the oil cylinders are asynchronous are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic control technical field, concretely is a kind of oil cylinder synchronous hydraulic control device. BACKGROUND

[0002] Oil cylinder is a kind of hydraulic transmission equipment, it utilizes the pressure of liquid to transmit energy and control.Oil cylinder is usually composed of cylinder body, piston, sealing element and connecting piece, and the extension and retraction movement of piston rod is realized by the flow of hydraulic oil, to drive load.Synchronous hydraulic cylinder is a kind of hydraulic system specially designed to realize the synchronous movement between multiple oil cylinders.In this system, two or more hydraulic cylinders move with the same displacement or speed, which is very important in many engineering machinery and industrial applications.

[0003] The implementation methods of synchronous hydraulic cylinder mainly include the following several kinds: mechanical synchronization mode, flow control synchronization mode, volume control synchronization mode and digital cylinder synchronization mode, in general, synchronous hydraulic cylinder has different implementation schemes in different application scenarios.In the design of hydraulic system, the factors such as synchronization accuracy, cost, system complexity and reliability need to be considered comprehensively according to actual demand, and the most suitable synchronization control method is selected.

[0004] Common oil cylinder synchronous hydraulic control device is usually controlled by indirect method to make oil cylinder run synchronously, which needs precise calculation to control the movement of oil cylinder, but in the working process of oil cylinder, parts are prone to wear and aging, which leads to deviation of oil cylinder movement, so that oil cylinder appears out of synchronization phenomenon, in view of this, the application provides an oil cylinder synchronous hydraulic control device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides an oil cylinder synchronous hydraulic control device, which has the advantages of directly detecting the movement length of oil cylinder stroke shaft to control the opening and closing of distribution valve, realizing oil cylinder synchronous operation, etc., solves the problems that parts are prone to wear and aging in the working process of oil cylinder, which leads to deviation of oil cylinder movement, so that oil cylinder appears out of synchronization phenomenon.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an oil cylinder synchronous hydraulic control device, comprising a mounting bottom plate, a hydraulic oil tank is fixedly installed on the top of the mounting bottom plate, a distribution valve is fixedly installed on the top of the hydraulic oil tank, two groups of distribution pipes are fixedly installed on one side of the distribution valve, one of the distribution pipes is connected with the input end of the hydraulic oil cylinder through an oil cylinder input pipe, and the other distribution pipe is connected with the output end of the hydraulic oil cylinder through an oil cylinder output pipe, the surface of the stroke shaft of the hydraulic oil cylinder is engraved with scale lines, and a displacement monitoring assembly for detecting the change of scale lines is arranged on the surface of the hydraulic oil cylinder.

[0007] The displacement monitoring assembly comprises a rotating sleeve rotatably mounted on the surface of the hydraulic cylinder, an extension support rod is fixedly mounted on the top of the rotating sleeve, an installation plate is fixedly mounted on the top of the extension support rod, a scale scanner is fixedly mounted on the side of the installation plate close to the stroke shaft of the hydraulic cylinder, and locking screws are screw-mounted on the surface of the rotating sleeve.

[0008] Further, one end of the stroke shaft of the hydraulic cylinder is fixedly mounted with a top plate, and one end of the locking screw penetrates through the rotating sleeve and is in contact with the surface of the rotating sleeve.

[0009] Further, a controller is fixedly mounted on one side of the hydraulic oil tank, the controller is electrically connected with the distribution valve, and the controller is electrically connected with the scale scanner.

[0010] Further, a pump body is fixedly mounted on the top of the hydraulic oil tank, a hydraulic communication pipe is fixedly mounted on the output end of the pump body, and the hydraulic communication pipe is in communication with the access end of the distribution valve.

[0011] Further, a hydraulic pump inlet pipe is fixedly mounted on the input end of the pump body, one end of the hydraulic pump inlet pipe is located in the interior of the hydraulic oil tank, and a filter head is fixedly mounted on one end of the hydraulic pump inlet pipe.

[0012] Further, a valve body return pipe is fixedly mounted on one side of the distribution valve, a cold water tank is fixedly mounted on the inner side wall of the hydraulic oil tank, and one end of the valve body return pipe extends to the interior of the cold water tank.

[0013] Further, a cooling pipe is fixedly mounted in the interior of the cold water tank, the valve body return pipe is fixedly connected with the input end of the cooling pipe, an oil return pipe is fixedly mounted on the output end of the cooling pipe, and the output end of the oil return pipe extends to the interior of the hydraulic oil tank.

[0014] Further, a push handle is fixedly mounted on the top of the installation base plate, and moving wheels are rotatably mounted on the bottom of the installation base plate through wheel frames.

[0015] Compared with the prior art, the oil cylinder synchronous hydraulic control device has the following beneficial effects:

[0016] The oil cylinder synchronous hydraulic control device sets the displacement monitoring assembly on the surface of the hydraulic cylinder, sets the scale line on the surface of the stroke shaft of the hydraulic cylinder, detects the length of the stroke shaft of the hydraulic cylinder through the scale scanner in the displacement monitoring assembly, transmits the length value to the controller, controls the work of the distribution valve through the displacement value signal received by the controller, and controls the length of the stroke shaft of the hydraulic cylinder, so that the problems of wear and aging of the components during the work of the oil cylinder, deviation of the movement of the oil cylinder and the phenomenon of asynchronization of the oil cylinder are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic view of the utility model;

[0018] Fig. 2 is a front view of the hydraulic oil tank of the utility model;

[0019] Fig. 3 is a side view of the distribution valve of the utility model;

[0020] Fig. 4 is a three-dimensional schematic view of the displacement monitoring assembly installation of the utility model.

[0021] In the figure: 1, mounting bottom plate; 2, hydraulic oil tank; 3, distribution valve; 31, distribution pipe; 4, oil cylinder input pipe; 5, hydraulic oil cylinder; 51, top plate; 6, oil cylinder output pipe; 7, scale line; 8, displacement monitoring assembly; 81, rotating sleeve; 82, extension support rod; 83, mounting plate; 84, scale scanner; 85, locking screw; 9, controller; 10, pump body; 11, hydraulic communication pipe; 12, hydraulic pump inlet pipe; 121, filter head; 13, valve body return pipe; 14, cold water tank; 15, cooling pipe; 16, oil return pipe; 17, push handle; 18, moving wheel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Embodiment one: please refer to Figs. 1-4 A kind of oil cylinder synchronous hydraulic control device, including mounting bottom plate 1, the top of mounting bottom plate 1 is fixedly installed with hydraulic oil tank 2, the top of hydraulic oil tank 2 is fixedly installed with distribution valve 3, one side of distribution valve 3 is fixedly installed with two groups of distribution pipe 31, one of distribution pipe 31 is connected with the input end of hydraulic oil cylinder 5 by oil cylinder input pipe 4, another distribution pipe 31 is connected with the output end of hydraulic oil cylinder 5 by oil cylinder output pipe 6, the surface of the stroke shaft of hydraulic oil cylinder 5 is engraved with scale line 7, the surface of hydraulic oil cylinder 5 is provided with displacement monitoring assembly 8 for detecting the change of scale line 7.

[0024] The displacement monitoring assembly 8 comprises a rotating sleeve 81 rotatably mounted on the surface of the hydraulic cylinder 5, the top of the rotating sleeve 81 is fixedly provided with an extension support rod 82, the top of the extension support rod 82 is fixedly provided with a mounting plate 83, the mounting plate 83 is fixedly provided with a scale scanner 84 near one side of the stroke shaft of the hydraulic cylinder 5, and the surface of the rotating sleeve 81 is screw-mounted with a locking screw 85. Rotate the rotating sleeve 81 so that the scale scanner 84 is aligned with the scale line 7.

[0025] Secondly, one end of the stroke shaft of the hydraulic cylinder 5 is fixedly provided with a top plate 51, and one end of the locking screw 85 penetrates through the rotating sleeve 81 and is in contact with the surface of the rotating sleeve 81. After the rotating sleeve 81 is adjusted, the locking screw 85 is tightened to fix the rotating sleeve 81.

[0026] At the same time, the controller 9 is fixedly arranged on one side of the hydraulic oil tank 2, the controller 9 is electrically connected with the distribution valve 3, and the controller 9 is electrically connected with the scale scanner 84. The controller 9 receives the signal feedback from the scale scanner 84, determines the length of the hydraulic cylinder 5 through the signal feedback, controls the output of the distribution valve 3, controls the working of the hydraulic cylinder 5, and makes the plurality of hydraulic cylinders 5 operate synchronously.

[0027] The top of the hydraulic oil tank 2 is fixedly provided with a pump body 10, the output end of the pump body 10 is fixedly provided with a hydraulic communication pipe 11, and the hydraulic communication pipe 11 is in communication with the access end of the distribution valve 3.

[0028] Secondly, the input end of the pump body 10 is fixedly provided with a hydraulic pump inlet pipe 12, one end of the hydraulic pump inlet pipe 12 is located in the interior of the hydraulic oil tank 2, and the other end of the hydraulic pump inlet pipe 12 is fixedly provided with a filter head 121.

[0029] In the embodiment one, the valve body backflow pipe 13 is fixedly arranged on one side of the distribution valve 3, the cold water tank 14 is fixedly arranged on the inner side wall of the hydraulic oil tank 2, and one end of the valve body backflow pipe 13 extends to the interior of the cold water tank 14.

[0030] The interior of the cold water tank 14 is fixedly provided with a cooling pipe 15, the valve body backflow pipe 13 is fixedly connected with the input end of the cooling pipe 15, the output end of the cooling pipe 15 is fixedly provided with an oil backflow pipe 16, and the output end of the oil backflow pipe 16 extends to the interior of the hydraulic oil tank 2. The oil backflowing into the hydraulic oil tank 2 is cooled by the cooling liquid in the cold water tank 14, so that the oil temperature is prevented from being too high and affecting the hydraulic control.

[0031] Secondly, the top of the mounting bottom plate 1 is fixedly provided with a push handle 17, and the moving wheels 18 are rotatably arranged at the bottom of the mounting bottom plate 1.

[0032] In use, the displacement monitoring assembly 8 is mounted on the surface of the hydraulic cylinder 5, the scale line 7 changes are detected by the scale scanner 84, the real-time data of the scale line 7 changes are transmitted to the controller 9, and the controller 9 adjusts the movement of a single hydraulic cylinder 5 according to the scales output by the plurality of hydraulic cylinders 5, so that the plurality of hydraulic cylinders 5 operate synchronously.

[0033] The electrical components in the text are all electrically connected with the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing disclosed power connection technology is not described in detail in the text.

[0034] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0035] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydraulic control device for synchronizing the operation of oil cylinders, comprising a mounting base plate (1), characterized in that: The top of the mounting base plate (1) is fixedly installed with a hydraulic oil tank (2), the top of the hydraulic oil tank (2) is fixedly installed with a distribution valve (3), the side of the distribution valve (3) is fixedly installed with two groups of distribution pipes (31), one of the distribution pipes (31) is communicated with the input end of the hydraulic oil cylinder (5) through the oil cylinder input pipe (4), the other distribution pipe (31) is communicated with the output end of the hydraulic oil cylinder (5) through the oil cylinder output pipe (6), the surface of the stroke shaft of the hydraulic oil cylinder (5) is engraved with a scale line (7), and the surface of the hydraulic oil cylinder (5) is provided with a displacement monitoring assembly (8) for detecting the change of the scale line (7). The displacement monitoring assembly (8) comprises a rotating sleeve (81) rotatably installed on the surface of the hydraulic oil cylinder (5), the top of the rotating sleeve (81) is fixedly installed with an extension support rod (82), the top of the extension support rod (82) is fixedly installed with a mounting plate (83), the side of the mounting plate (83) close to the stroke shaft of the hydraulic oil cylinder (5) is fixedly installed with a scale scanner (84), and the surface of the rotating sleeve (81) is threadedly installed with a locking screw (85).

2. The hydraulic cylinder synchronization control apparatus according to claim 1, characterized by: One end of the stroke shaft of the hydraulic oil cylinder (5) is fixedly installed with a top plate (51), and one end of the locking screw (85) penetrates through the rotating sleeve (81) and is in contact with the surface of the rotating sleeve (81).

3. The hydraulic control apparatus for a cylinder according to claim 1, wherein: The side of the hydraulic oil tank (2) is fixedly installed with a controller (9), the controller (9) is electrically connected with the distribution valve (3), and the controller (9) is electrically connected with the scale scanner (84).

4. The hydraulic control apparatus for a cylinder according to claim 1, wherein: The top of the hydraulic oil tank (2) is fixedly installed with a pump body (10), the output end of the pump body (10) is fixedly installed with a hydraulic communication pipe (11), and the hydraulic communication pipe (11) is communicated with the access end of the distribution valve (3).

5. The hydraulic control apparatus for a cylinder according to claim 4, wherein: The input end of the pump body (10) is fixedly installed with a hydraulic pump inlet pipe (12), one end of the hydraulic pump inlet pipe (12) is located in the hydraulic oil tank (2), and the other end of the hydraulic pump inlet pipe (12) is fixedly installed with a filter head (121).

6. The hydraulic control apparatus of claim 1, wherein: The side of the distribution valve (3) is fixedly installed with a valve body return pipe (13), the inner side wall of the hydraulic oil tank (2) is fixedly installed with a cold water tank (14), and one end of the valve body return pipe (13) extends into the cold water tank (14).

7. The hydraulic control apparatus of claim 6, wherein: The inside of the cold water tank (14) is fixedly installed with a cooling pipe (15), the valve body return pipe (13) is fixedly connected with the input end of the cooling pipe (15), the output end of the cooling pipe (15) is fixedly installed with an oil return pipe (16), and the output end of the oil return pipe (16) extends into the hydraulic oil tank (2).

8. The hydraulic control apparatus of claim 1, wherein: The top of the mounting base plate (1) is fixedly installed with a push handle (17), and the bottom of the mounting base plate (1) is rotatably installed with a moving wheel (18) at four corners through a wheel frame.

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