Automatic detection device for sealing performance of hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinder sealing detection, in particular to a hydraulic oil cylinder sealing performance automatic detection device which comprises a detection water tank used for detecting the sealing performance of a hydraulic oil cylinder and a collection device used for collecting floating oil stains on the water surface during detection. The detection water tank comprises an airtightness detection box and a filter box located at the bottom of the airtightness detection box, the airtightness detection box is connected through a filter pipe, the top of the filter box is connected with the bottom of the filter pipe, the collection device comprises a collection driving part, a collection fixing hopper, a collection hopper and a collection pump, and the collection hopper is located in the collection fixing hopper. According to the automatic detection device for the sealing performance of the hydraulic oil cylinder, floating oil stains on the water surface are collected during detection, the situation that whether the hydraulic oil cylinder leaks or not is conveniently observed, and the error of sealing performance detection is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder sealing detection technical field, concretely is a kind of hydraulic oil cylinder sealing property automatic detection device. BACKGROUND

[0002] Hydraulic oil cylinder is the hydraulic energy conversion mechanical energy, does linear reciprocating motion (or swing motion) hydraulic actuator. It simple structure, reliable, in the realization reciprocating motion can dispense with speed reducer and there is no transmission gap, so stable movement.

[0003] Hydraulic cylinder is the hydraulic transmission system execution element, it converts hydraulic energy into mechanical energy. Hydraulic motor realizes continuous rotary motion, and hydraulic cylinder realizes reciprocating motion. The structure type of hydraulic cylinder has piston cylinder, plunger cylinder, swing cylinder three categories, piston cylinder and plunger cylinder realize reciprocating linear motion, output speed and thrust, swing cylinder realizes reciprocating swing, output angular velocity (rotational speed) and torque.

[0004] In order to ensure that hydraulic oil cylinder works reliably, the sealing performance of hydraulic oil cylinder needs to be detected, and the sealing performance of hydraulic oil cylinder is detected mainly by the following methods at present: 1, pressure detection method: by applying certain pressure to the hydraulic oil cylinder, observing whether the oil cylinder has leakage phenomenon to judge its sealing performance, this method can directly reflect the sealing performance of oil cylinder; 2, flow detection method: by measuring the flow change of hydraulic oil cylinder in the working process, judge whether its sealing performance is good, if the flow remains stable, it shows that the sealing performance is good, if the flow fluctuates or decreases, there may be leakage problem; 3, air tightness detection method: the measured workpiece is sealed, and certain pressure gas is applied to the inner cavity, then immersed in water tank, observe whether there is air bubble, this method is suitable for detecting the air tightness of cylinder barrel assembly, and can find the leakage point of welding seam etc.

[0005] At present, the air tightness detection method is an effective method suitable for detecting the air tightness of cylinder barrel assembly and finding the leakage point of welding seam etc., the detection method is simple and the effect is good, but when the hydraulic oil cylinder is immersed in water for the first time, the dust and residual oil stains attached to the hydraulic oil cylinder of plate shearing machine will float on the water surface, which affects the observation of the leakage condition of the hydraulic oil cylinder, and the floating oil stains cannot judge whether the hydraulic oil leaks, so that there is a large error in the sealing performance detection of the hydraulic oil cylinder of plate shearing machine. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of hydraulic oil cylinder sealing property automatic detection device to solve the problems raised in the above background.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] The utility model provides a kind of hydraulic cylinder sealing automatic detection device, including the detection water tank for carrying out sealing detection to hydraulic cylinder and the collection device for collecting floating oil dirt on water surface during detection, the detection water tank includes airtight detection tank and filter tank at the bottom of the airtight detection tank, the airtight detection tank is connected by filter pipe, and the filter tank top is connected with the filter pipe bottom.

[0009] As the preferred scheme of the utility model, the collection device includes a collection drive, a collection fixed hopper, a collection hopper and a collection pump, the collection fixed hopper is arranged in a rectangular structure, the collection fixed hopper bottom is provided with a guide pipe, the collection hopper is arranged in a rectangular structure, the collection hopper is located inside the collection fixed hopper, a fixed top plate is arranged on the top of the collection fixed hopper outside the collection hopper, the collection hopper is connected with the collection fixed hopper through the collection drive, a collection inlet bellows is connected through the collection hopper bottom, and the collection inlet bellows outlet penetrates the guide pipe and is connected with the collection pump inlet.

[0010] As the preferred scheme of the utility model, the collection drive includes a drive motor, drive racks and drive gears, the drive racks are connected in a symmetrical structure on the two side walls of the collection hopper, a guide column is arranged on the top of each drive rack, the top of each guide column penetrates the fixed top plate and extends above it, the drive gears are connected with one of the drive racks in meshing, the drive motor is located at the bottom of the fixed top plate, the drive motor output end is connected with the drive gears, and the drive motor cover is provided with a waterproof cover.

[0011] As the preferred scheme of the utility model, the collection fixed hopper is located inside the airtight detection tank, the two side walls of the collection fixed hopper are connected with the two side walls of the airtight detection tank, and when the collection fixed hopper is located inside the airtight detection tank, the top of the collection fixed hopper is below the detection water surface.

[0012] As the preferred scheme of the utility model, the collection pump is located on the outer wall of the airtight detection tank, and the collection pump outlet is connected with the filter pipe inlet.

[0013] As the preferred scheme of the utility model, a large-particle impurity filter screen is arranged on the bottom circumferential wall of the collection hopper.

[0014] As the preferred scheme of the utility model, the filter tank outlet is connected with the airtight detection tank through a circulating pump, and the circulating pump inlet is always below the water surface inside the filter tank.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The hydraulic oil cylinder sealing property automatic detection device of the application collects floating oil dirt on the water surface during detection, which is convenient for observing whether the hydraulic oil cylinder leaks or not, and reduces the error of sealing property detection.

[0017] When the floating objects on the liquid surface need to be collected during detection, the collection pump and the driving motor are started, the driving motor rotates forward and reversely, and the driving gear on the output end of the driving motor rotates forward and reversely at the same time, the driving gear is connected with the driving rack in meshing, the driving rack is displaced up and down at the same time through the driving gear, and the collection bucket connected with the driving rack moves up and down, the up and down movement of the collection bucket forms a liquid level difference, the floating objects on the detection water surface of the air tightness detection box are sucked into the collection bucket through the water surface tension and the vortex effect, large particles are filtered through the large particle impurity filter screen in the collection bucket, small particles and oil dirt are filtered through the filter pipe and enter the filter box for sedimentation and filtration, and the filtered water enters the air tightness detection box through the filter box.

[0018] The application not only improves the detection accuracy, but also reduces the human operation error, so that the manufacturing and maintenance of the hydraulic oil cylinder are more efficient and reliable.

[0019] The application will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure perspective view of the application.

[0021] Figure 2 It is a whole top view of the application.

[0022] Figure 3 It is a collection fixed bucket and collection bucket connection schematic view of the application.

[0023] Figure 4 It is a collection driving member structure schematic view of the application.

[0024] In the drawings: 1, detection water tank; 11, air tightness detection box; 12, filter box; 13, filter pipe; 2, collection device; 21, collection fixed bucket; 211, guide pipe; 23, collection bucket; 230, fixed top plate; 231, collection entering corrugated pipe; 22, collection pump; 24, driving motor; 241, driving rack; 2411, guide column; 242, driving gear. DETAILED DESCRIPTION

[0025] For the convenience of understanding the utility model, the utility model will be described more comprehensively below with reference to relevant drawings, and several embodiments of the utility model are given in the drawings, but the utility model can be realized through different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the utility model more thorough and comprehensive. Embodiments

[0026] The various devices in the present application file all adopt conventional models in the prior art, and the control mode is controlled through a controller, and the control circuit of the controller can be realized through simple programming by those skilled in the art, which belongs to the common knowledge in the art, so the present application will not be explained in detail.

[0027] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of hydraulic oil cylinder leakproofness automatic detection device, including the detection water tank 1 for carrying out leakproofness detection to hydraulic oil cylinder and the collecting device 2 for collecting floating oil dirt on water surface when detecting, detection water tank 1 includes airtight detection tank 11 and filter tank 12 located at the bottom of airtight detection tank 11, airtight detection tank 11 is connected by filter pipe 13, and filter tank 12 top is connected with the bottom of filter pipe 13, collecting device 2 includes collection driving element, collection fixed hopper 21, collection hopper 23 and collection pump 22, collection fixed hopper 21 is arranged in rectangular structure, and collection fixed hopper 21 bottom is provided with guide pipe 211, collection hopper 23 is arranged in rectangular structure, and collection hopper 23 is located inside collection fixed hopper 21, and fixed top plate 230 is provided on the top of collection fixed hopper 21 outside collection hopper 23, collection hopper 23 is connected with collection fixed hopper 21 by collection driving element, and collection entering corrugated pipe 231 is connected in place on the bottom of collection hopper 23, and the outlet of collection entering corrugated pipe 231 is connected with the inlet of collection pump 22 through guide pipe 211;Collection fixed hopper 21 is located inside airtight detection tank 11, and the outer wall of collection fixed hopper 21 is connected with the inner wall of airtight detection tank 11, when collection fixed hopper 21 is located inside airtight detection tank 11, the top of collection fixed hopper 21 is below detection water surface, collection pump 22 is located on the outer wall of airtight detection tank 11, and the outlet of collection pump 22 is connected with the inlet of filter pipe 13, and large-particle impurity filter screen is provided on the bottom circumferential wall of collection hopper 23, the outlet of filter tank 12 is connected with airtight detection tank 11 by circulating pump, and the inlet of circulating pump is always below the water surface in filter tank 12.

[0028] It should be noted that in this embodiment, the detection water tank 1 is the core part of the device, which includes airtight detection tank 11 and filter tank 12, the airtight detection tank 11 is used to accommodate the hydraulic cylinder to be detected, and the sealing performance of the hydraulic cylinder is evaluated by a specific detection method, the filter tank 12 is located at the bottom of the airtight detection tank 11, which is used to collect and filter the impurities and oil stains generated during the detection process, the airtight detection tank 11 and the filter tank 12 are connected through the filter pipe to form a closed loop oil circuit system, which ensures the continuity and stability of the detection process.

[0029] The collection device 2 is another important part of the device, which is responsible for collecting floating oil stains on the water surface during the detection process, the collection device includes collection driving member, collection fixed hopper 21, collection hopper 23 and collection pump 22, the collection fixed hopper 21 is arranged in a rectangular structure, and the bottom is provided with a guide pipe 211, the collection hopper 23 is also arranged in a rectangular structure, which is located inside the collection fixed hopper 21 and connected with the collection fixed hopper 21 through the collection driving member, the bottom of the collection hopper 23 is connected with the collection inlet bellows 231, and the outlet of the bellows is connected with the inlet of the collection pump 22 through the guide pipe 211, when the collection pump 22 is started, it will suck the oil stains in the collection hopper 23 and discharge them into the filter tank 12 through the filter pipe 13.

[0030] The collection fixed hopper 21 is located inside the airtight detection tank 11, and the top of the collection fixed hopper 21 is below the detection water surface, which can ensure that the collection hopper 23 is always underwater during work, which is conducive to the collection of oil stains, at the same time, the collection pump 22 is located on the outer wall of the airtight detection tank 11, and the outlet of the collection pump 22 is connected with the inlet of the filter pipe 13, which not only facilitates the discharge of oil stains, but also avoids the spread of oil stains in the airtight detection tank 11.

[0031] The total hydraulic cylinder sealing property automatic detection device realizes efficient and accurate detection of the sealing performance of the hydraulic cylinder through its unique design and working principle, which not only improves the accuracy and efficiency of the detection, but also reduces the human operation error, providing strong technical support for the manufacturing and maintenance of the hydraulic cylinder.

[0032] Please refer to Figure 1 , 3 and 4, the collection driving member includes a driving motor 24, a driving rack 241 and a driving gear 242, the driving rack 241 is connected to the outer wall on both sides of the collection hopper 23 in a symmetrical structure, and a guide column 2411 is connected to the top of each driving rack 241, each guide column 2411 extends above the fixed top plate 230, the driving gear 242 is connected with one of the driving racks 241, the driving motor 24 is located at the bottom of the fixed top plate 230, the output end of the driving motor 24 is connected with the driving gear 242, and a waterproof cover is arranged on the outer cover of the driving motor 24.

[0033] It should be noted that in the present embodiment, the collection drive is realized through the cooperative work of the drive motor 24, the drive rack 241, the drive gear 242, the guide column 2411 and the fixed top plate 230, etc., to realize the accurate control of the collection bucket 23, so that it can effectively collect the floating oil dirt on the water surface, improve the detection accuracy, and reduce the human operation error, so that the manufacturing and maintenance of the hydraulic cylinder are more efficient and reliable.

[0034] The drive rack 241 is connected to the two side walls of the collection bucket 23 in a symmetrical structure, which is engaged with the drive gear 242 to convert the rotary motion of the drive motor 24 into the up-down motion of the collection bucket 23. The drive gear 242 is engaged with one of the drive racks 241, and the rotation of the drive gear 242 drives the drive rack 241 engaged therewith to move. The top of each drive rack 241 is connected with a guide column 2411, and the top of the guide column 2411 penetrates the fixed top plate 230 and extends above it. The guide column 2411 provides stable support and guidance for the drive rack 241 to ensure its accurate position during the up-down motion. The fixed top plate 230 is located at the top of the collection fixed bucket 21 to provide a mounting base for the drive rack 241 and the guide column 2411, and to ensure the stability of the collection bucket 23 during operation. The drive motor 24 is provided with a waterproof cover to prevent water or other impurities from entering the motor and to protect the motor from damage.

[0035] When the floating matter on the liquid surface needs to be collected during detection, the collection pump 22 and the drive motor 24 are started. The drive motor 24 drives the drive gear 242 on its output end to rotate forward and reverse, and the drive gear 242 is engaged with the drive rack 241. The drive rack 241 is driven by the drive gear 242 to move up and down, and the collection bucket 23 connected therewith is also driven to move up and down. The up-down motion of the collection bucket 23 forms a liquid level difference, and the water surface tension and vortex effect are used to suck the floating matter on the detection water surface into the collection bucket 23 with a large suction force. The large particles are filtered by the large particle filter screen in the collection bucket 23, and the small particles and oil dirt are filtered by the filter pipe 13 into the filter box 12 for sedimentation and filtration. The filtered water enters the airtight detection box 11 through the filter box.

[0036] The working process of the utility model is as follows:

[0037] In use, when the floating objects on the liquid surface need to be collected when detecting, the collecting pump 22 and the driving motor 24 are started, the driving motor 24 drives the driving gear 242 on the output end to rotate reversely, the driving gear 242 is connected with the driving rack 241 in meshing, the driving rack 241 and the collecting hopper 23 connected therewith are driven to move up and down through the driving gear 242, the collecting hopper 23 moves up and down to form a liquid level difference, the floating objects on the water surface in the airtight detection box 11 are sucked into the collecting hopper 23 through the water surface tension and the vortex effect, large particles are filtered through the large-particle impurity filter screen in the collecting hopper 23, small particles and oil stains are filtered through the filter pipe 13 into the filter box 12 to be deposited and filtered, and the filtered water enters the airtight detection box 11 through the filter box.

[0038] The utility model is described exemplarily above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as the method concept and the technical scheme of the utility model are adopted to make this kind of non-essential improvement, or the concept and the technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. An automatic hydraulic cylinder sealing performance testing device, comprising a testing water tank (1) for testing the sealing performance of the hydraulic cylinder and a collection device (2) for collecting floating oil and dirt on the water surface during testing, characterized in that: The test tank (1) includes an airtight test tank (11) and a filter tank (12) located at the bottom of the airtight test tank (11). The airtight test tank (11) is connected to the filter tube (13), and the top of the filter tank (12) is connected to the bottom of the filter tube (13).

2. The automatic hydraulic cylinder sealing detection device according to claim 1, characterized in that: The collection device (2) includes a collection drive, a collection fixed bucket (21), a collection bucket (23), and a collection pump (22). The collection fixed bucket (21) is rectangular in shape and has a guide pipe (211) at its bottom. The collection bucket (23) is rectangular in shape and is located inside the collection fixed bucket (21). A fixed top plate (230) is located at the top inside the collection fixed bucket (21) outside the collection bucket (23). The collection bucket (23) is connected to the collection fixed bucket (21) through the collection drive. A collection inlet corrugated pipe (231) is connected through the bottom of the collection bucket (23). The outlet of the collection inlet corrugated pipe (231) passes through the guide pipe (211) and is connected to the inlet of the collection pump (22).

3. The automatic hydraulic cylinder sealing detection device according to claim 2, characterized in that: The collection drive unit includes a drive motor (24), a drive rack (241), and a drive gear (242). The drive racks (241) are symmetrically connected on both outer walls of the collection hopper (23). Each drive rack (241) is connected to a guide post (2411) at its top. The top of each guide post (2411) extends through the fixed top plate (230) and is located above it. The drive gear (242) meshes with one of the drive racks (241). The drive motor (24) is located at the bottom of the fixed top plate (230). The output end of the drive motor (24) is connected to the drive gear (242). The drive motor (24) is covered with a waterproof cover.

4. The automatic hydraulic cylinder sealing detection device according to claim 2, characterized in that: The collection and fixing bucket (21) is located inside the airtightness testing box (11). The outer walls on both sides of the collection and fixing bucket (21) are connected to the inner walls on both sides of the airtightness testing box (11). When the collection and fixing bucket (21) is located inside the airtightness testing box (11), the top of the collection and fixing bucket (21) is below the water surface.

5. The automatic hydraulic cylinder sealing detection device according to claim 2, characterized in that: The collecting pump (22) is located on the outer wall of the airtightness testing box (11), and the outlet of the collecting pump (22) is connected to the inlet of the filter tube (13).

6. The automatic hydraulic cylinder sealing detection device according to claim 3, characterized in that: A large particle impurity filter screen is provided on the bottom circumferential wall of the collection hopper (23).

7. The automatic hydraulic cylinder sealing detection device according to claim 1, characterized in that: The outlet of the filter box (12) is connected to the airtightness test box (11) via a circulation pump, and the inlet of the circulation pump is always below the water level inside the filter box (12).

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