Hydraulic counterweight valve group

Abstract

The utility model discloses a hydraulic counterweight valve bank, which relates to the field of hydraulic cylinder control valve banks, and is capable of regularly and automatically detecting the appearance of the hydraulic cylinder control valve bank in the daily use process by arranging a moving component and a detection camera. The problems of oil leakage and appearance damage of the hydraulic cylinder control valve group can be found in time, compared with the traditional technology, manpower is saved, the detection accuracy is improved, the detection error is greatly reduced, and it is ensured that the oil leakage problem can be found in time; through the arrangement of the first rotating shaft, the cleaning sponge, the rotating assembly and the limiting assembly, the cleaning work of the shooting end of the detection camera can be automatically completed in the oil leakage detection work process of the control valve set through revolution of the detection camera, and the shooting picture quality of the detection camera is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic cylinder control valve groups, in particular to a hydraulic counterweight valve group. Background Art

[0002] In construction machinery, such as a crane, during the process of lifting a heavy object, a counterweight block needs to be installed on the side opposite to the heavy object to keep the crane stable. In the prior art, the counterweight block on the crane is connected to the crane through a hydraulic cylinder, and the lifting and lowering of the counterweight block are realized through the hydraulic cylinder.

[0003] In the prior art, the extension, contraction and stop of the hydraulic cylinder for the counterweight block are controlled by a hydraulic cylinder control valve group installed at the oil inlet of the hydraulic cylinder. During daily use, people need to regularly detect the leakage of the control valve group of the hydraulic cylinder to ensure that it can be processed in time when leakage occurs. However, this detection method greatly increases the labor cost, and the manual detection depends on the human eye to determine, with large errors and a high probability of false judgment, and often the leakage situation cannot be detected in time. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art problems, the purpose of the utility model is to provide a hydraulic counterweight valve group that can automatically detect the leakage of the valve group.

[0005] In order to solve the prior art problems, the technical solution of the utility model is as follows:

[0006] A hydraulic counterweight valve group includes an integration block, on which a directional control valve, a pressure reducing valve, a throttle valve and a pressure gauge are respectively installed. The integration block is fixed on a mounting plate, and a detection camera is slidably mounted on the surface of the mounting plate. The detection camera faces the integration block, and a moving component is installed on the mounting plate for driving the detection camera to rotate around the axis of the mounting plate on the mounting plate.

[0007] Preferably, a circular slide rail is fixed on the top of the mounting plate, and a slider is slidably mounted on the outer wall of the circular slide rail. The detection camera is fixed on the top surface of the slider.

[0008] Preferably, the moving component includes a motor fixed on one side of the slider, a driving gear is fixed on the output end of the motor, and an external gear ring is fixed on the top surface of the mounting plate. The driving gear is meshed with the external gear ring.

[0009] Preferably, a first rotating shaft is rotatably connected to the top surface of the mounting plate through a bearing. A cleaning sponge is fixed on the upper end of the first rotating shaft. The cleaning sponge cooperates with the detection camera. A rotating component for driving the first rotating shaft to rotate is installed on the mounting plate, and a limiting component for limiting the first rotating shaft is fixed on the top surface of the mounting plate.

[0010] Preferably, the rotating assembly includes a second rotating shaft rotatably connected to the top surface of the mounting plate through a bearing, synchronous pulleys are fixed to the first rotating shaft and the second rotating shaft, a synchronous belt is transmission-connected between the two synchronous pulleys, a driven gear is fixed to the lower end of the second rotating shaft, an arc-shaped inner gear ring is fixed on the outer wall of the slider, and the arc-shaped inner gear ring cooperates with the driven gear.

[0011] Preferably, the limiting assembly comprises a rubber friction pad fixed on the top surface of the mounting plate, and the outer wall of the rubber friction pad abuts against the outer wall of the first rotating shaft.

[0012] Preferably, the limiting assembly includes a connecting sleeve fixed on the top surface of the mounting plate, a clamping rod is slidably inserted into the inner wall of the connecting sleeve, the end of the clamping rod close to the driven gear is conically arranged, the end of the clamping rod close to the driven gear is clamped in the tooth gap of the driven gear, and a spring is provided on the outer side of the end of the clamping rod away from the driven gear, one end of the spring is fixed to the outer wall of the clamping rod, and the other end of the spring is fixed to the outer wall of the connecting sleeve.

[0013] Compared with the prior art, the advantages of the utility model are as follows:

[0014] 1. The utility model can automatically and regularly perform appearance inspection of the hydraulic cylinder control valve group during daily use by setting up mobile components and detection cameras, and can timely detect oil leakage and appearance damage of the hydraulic cylinder control valve group. Compared with traditional technologies, it saves manpower, improves the accuracy of detection, greatly reduces detection errors, and ensures that oil leakage problems can be discovered in a timely manner;

[0015] 2. The utility model can automatically clean the shooting end of the detection camera during the oil leakage detection of the control valve group by setting the first rotating shaft, cleaning sponge, rotating assembly and limiting assembly, thereby ensuring the shooting picture quality of the detection camera;

[0016] 3. The rotating assembly provided in the utility model enables the cleaning sponge to rotate, ensuring that a relatively clean side of the cleaning sponge can always be used to clean the detection camera, thereby avoiding a certain position of the cleaning sponge being in a position to wipe the detection camera for a long time, thereby improving the cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 For this utility model Figure 1 Enlarged view of point A.

[0019] Figure 3Schematic diagram of the second embodiment of the present utility model.

[0020] Figure 4 This is for the present utility model Figure 3 Enlarged view of part B.

[0021] Figure 5 Schematic diagram of the second embodiment of the present utility model.

[0022] Figure 6 Schematic diagram of the third embodiment of the present utility model.

[0023] Reference numerals: 1, integrated circuit block; 101, reversing valve; 102, pressure reducing valve; 103, throttle valve; 104, pressure gauge; 2, mounting plate; 3, inspection camera; 4, annular slide rail; 5, slider; 6, motor; 7, driving gear; 8, external gear ring; 9, first rotating shaft; 10, cleaning sponge; 11, second rotating shaft; 12, synchronous pulley; 13, synchronous belt; 14, driven gear; 15, arc-shaped internal gear ring; 16, rubber friction pad; 17, connecting sleeve; 18, pressing rod; 19, spring. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1, please refer to Figure 1 and Figure 2 , this embodiment provides a hydraulic counterweight valve group, including an integrated circuit block 1, on which a reversing valve 101, a pressure reducing valve 102, a throttle valve 103 and a pressure gauge 104 are respectively installed, and the integrated circuit block 1 is fixed on a mounting plate 2;

[0026] When the entire control valve group is installed, the mounting plate 2 is fixed on the outer wall of the hydraulic cylinder by passing mounting screws through the holes on the mounting plate 2 to complete the installation work, and then the entire control valve group is connected to the oil inlet of the hydraulic cylinder and the oil inlet of the oil pump through pipelines;

[0027] A detection camera 3 is slidably installed on the surface of the mounting plate 2, the detection camera 3 faces the integrated circuit block 1, a circular slide rail 4 is fixed on the top of the mounting plate 2, a slider 5 is slidably installed on the outer wall of the circular slide rail 4, the detection camera 3 is fixed on the top surface of the slider 5, a motor 6 is fixed on one side of the slider 5, a driving gear 7 is fixed on the output end of the motor 6, and an external gear ring 8 is fixed on the top surface of the mounting plate 2, and the driving gear 7 is meshed with the external gear ring 8;

[0028] During daily use, the settings are made through the multi-controller, and the controller drives the motor 6 to rotate intermittently according to the settings, driving the active gear 7 to rotate. The active gear 7 rotates and moves the outer gear ring 8, thereby driving the slider 5 to slide on the outside of the annular slide rail 4, thereby driving the detection camera 3 to rotate around the integrated block 1, and realizing the automatic detection effect of the appearance and oil leakage of the periphery of the integrated block 1. The detection camera 3 transmits the captured image to the controller, and the controller uses the visual algorithm for comparison to determine whether there is any appearance damage and oil leakage. Compared with the traditional method of regular manual inspection, it greatly saves manpower, improves the detection accuracy, and ensures that problems can be discovered in time.

[0029] For example 2, please refer to Figure 3 , Figure 4 and Figure 5 This embodiment provides a further technical solution based on the embodiment. The top surface of the mounting plate 2 is rotatably connected to the first rotating shaft 9 through a bearing. A cleaning sponge 10 is fixed to the upper end of the first rotating shaft 9. The cleaning sponge 10 cooperates with the detection camera 3. A rubber friction pad 16 is fixed to the top surface of the mounting plate 2. The outer wall of the rubber friction pad 16 abuts against the outer wall of the first rotating shaft 9. The rubber friction pad 16 abuts against the first rotating shaft 9 to ensure that the first rotating shaft 9 does not rotate at will.

[0030] The top surface of the mounting plate 2 is rotatably connected to a second rotating shaft 11 through a bearing, a synchronous pulley 12 is fixed to both the first rotating shaft 9 and the second rotating shaft 11, a synchronous belt 13 is transmission-connected between the two synchronous pulleys 12, a driven gear 14 is fixed to the lower end of the second rotating shaft 11, an arc-shaped inner gear ring 15 is fixed to the outer wall of the slider 5, and the arc-shaped inner gear ring 15 cooperates with the driven gear 14;

[0031] In the process of each time the detection rubber rotates one circle around the axis of the mounting plate 2 to complete one detection work, when the slider 5 passes the second rotating shaft 11, the arc-shaped internal gear ring 15 on the slider 5 follows the rotation to drive the driven gear 14 to rotate, and the driven gear 14 drives the second rotating shaft 11 to rotate, and the first rotating shaft 9 is rotated through the synchronous pulley 12 and the synchronous belt 13, thereby driving the cleaning sponge 10 to rotate, so that the cleaning sponge 10 will rotate a certain angle every time the motor 6 passes;

[0032] After the arc-shaped inner gear ring 15 is separated from the driven gear 14, the cleaning sponge 10 is limited by the rubber friction pad 16 against the first rotating shaft 9;

[0033] The working process of the cleaning sponge 10 is as follows. When the detection camera 3 passes by its periphery, the cleaning sponge 10 wipes the shooting side of the detection camera 3 to achieve the automatic cleaning of the detection camera 3, ensuring the clarity of the shooting image of the detection camera 3. After the detection camera 3 passes by the cleaning sponge 10, the driven gear 14 is then toggled to rotate, and the cleaning sponge 10 rotates by a certain angle. This ensures that when the detection camera 3 passes by the cleaning sponge 10 next time, the cleaning work is carried out at a relatively clean position on the outer side of the cleaning sponge 10. In this way, the effect of automatically cleaning the detection camera 3 is achieved, ensuring the clarity of the shooting image of the detection camera 3. At the same time, it can ensure that the cleaning sponge 10 always has a relatively clean side to clean the detection camera 3. After using a large cycle, the cleaning sponge 10 can be replaced manually.

[0034] Embodiment 3. Please refer to Figure 6 , the difference between this embodiment and Embodiment 2 is that a connecting sleeve 17 is fixedly provided on the top surface of the mounting disk 2. A pressing rod 18 is slidably inserted into the inner wall of the connecting sleeve 17. One end of the pressing rod 18 close to the driven gear 14 is tapered. One end of the pressing rod 18 close to the driven gear 14 is clamped in the tooth gap of the driven gear 14. A spring 19 is sleeved on the outer side of the end of the pressing rod 18 far from the driven gear 14. One end of the spring 19 is fixed to the outer wall of the pressing rod 18, and the other end of the spring 19 is fixed to the outer wall of the connecting sleeve 17;

[0035] Compared with Embodiment 2, which uses the rubber friction pad 16 to limit the first rotating shaft 9, in this embodiment, the first rotating shaft 9 is limited by the connecting sleeve 17, the pressing rod 18 and the spring 19. When the arc-shaped internal gear ring 15 toggles the driven gear 14 to rotate, the driven gear 14 overcomes the resistance of the pressing rod 18 and toggles the pressing rod 18, causing the pressing rod 18 to slide away from the driven gear 14 against the elastic force of the spring 19. When the tooth gap of the driven gear 14 is aligned with the pressing rod 18 again, the pressing rod 18 is again abutted against the tooth gap of the driven gear 14 under the action of the restoring elastic force of the spring 19. After the arc-shaped internal gear ring 15 is separated from the driven gear 14, the pressing rod 18 is pressed against the tooth gap of the driven gear 14 under the elastic force of the spring 19, so that the driven gear 14, the second rotating shaft 11, the first rotating shaft 9 and the cleaning sponge 10 are kept in a limited and fixed state and will not rotate.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic counterweight valve group, including an integrated block (1), on which a directional control valve (101), a pressure reducing valve (102), a throttle valve (103) and a pressure gauge (104) are respectively installed, characterized in that, The integrated block (1) is fixed on a mounting plate (2); a detection camera (3) is slidably mounted on the surface of the mounting plate (2); the detection camera (3) faces the integrated block (1); and a moving component is mounted on the mounting plate (2) for driving the detection camera (3) to rotate on the mounting plate (2) around the axis of the mounting plate (2).

2. The hydraulic counterweight valve group according to claim 1, characterized in that, An annular slide rail (4) is fixed on the top of the mounting plate (2), a slider (5) is slidably mounted on the outer wall of the annular slide rail (4), and the detection camera (3) is fixed on the top surface of the slider (5).

3. The hydraulic counterweight valve group according to claim 2, wherein, The moving assembly comprises a motor (6) fixed on one side of a slider (5), a driving gear (7) is fixed on the output end of the motor (6), an outer gear ring (8) is fixed on the top surface of the mounting plate (2), and the driving gear (7) is meshingly connected with the outer gear ring (8).

4. The hydraulic counterweight valve group according to claim 2, characterized in that, The top surface of the mounting plate (2) is rotatably connected to a first rotating shaft (9) via a bearing, a cleaning sponge (10) is fixed to the upper end of the first rotating shaft (9), the cleaning sponge (10) cooperates with the detection camera (3), a rotating component for driving the first rotating shaft (9) to rotate is installed on the mounting plate (2), and a limiting component for limiting the first rotating shaft (9) is fixed to the top surface of the mounting plate (2).

5. The hydraulic counterweight valve group according to claim 4, characterized in that, The rotating assembly comprises a second rotating shaft (11) rotatably connected to the top surface of the mounting plate (2) via a bearing, a synchronous pulley (12) is fixed to the first rotating shaft (9) and the second rotating shaft (11), a synchronous belt (13) is connected between the two synchronous pulleys (12), a driven gear (14) is fixed to the lower end of the second rotating shaft (11), an arc-shaped inner gear ring (15) is fixed to the outer wall of the slider (5), and the arc-shaped inner gear ring (15) cooperates with the driven gear (14).

6. The hydraulic counterweight valve group according to claim 4, characterized in that, The limiting assembly comprises a rubber friction pad (16) fixed on the top surface of the mounting plate (2), and the outer wall of the rubber friction pad (16) abuts against the outer wall of the first rotating shaft (9).

7. The hydraulic counterweight valve group according to claim 4, characterized in that, The limiting assembly comprises a connecting sleeve (17) fixed on the top surface of the mounting plate (2); a clamping rod (18) is slidably inserted into the inner wall of the connecting sleeve (17); the end of the clamping rod (18) close to the driven gear (14) is arranged in a conical shape; the end of the clamping rod (18) close to the driven gear (14) is clamped in the tooth gap of the driven gear (14); a spring (19) is sleeved on the outer side of the end of the clamping rod (18) away from the driven gear (14); one end of the spring (19) is fixed to the outer wall of the clamping rod (18), and the other end of the spring (19) is fixed to the outer wall of the connecting sleeve (17).

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