Hydraulic cam cleaning mechanism

Abstract

The utility model discloses a kind of hydraulic cam cleaning mechanisms, comprising: mounting plate, hydraulic rotating component and cam swing component are installed on mounting plate. Through the cam swing component's curved surface track of utilizing hydraulic motor drive rotating component, the accurate positioning of its cleaning work surface spray gun operation is realized by the cooperation of the two, the cam swing component maintains the advantages of servo motor drive positioning accuracy and control simplicity, the rotating component of its hydraulic drive is not influenced by high dust, high humidity, flammable material etc. Environment, the hydraulic system of mechanism itself is not prone to failure, solid and durable, long service life, use and maintenance cost are relatively lower, and effectively reduce the occurrence of safety accident, guarantee personal and property safety.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure water jet cleaning technology, specifically a hydraulic cam cleaning mechanism. Background Technology

[0002] In the field of high-pressure water jet cleaning, the cleaning medium is typically pressurized by a high-pressure pump and then reaches the nozzle of the cleaning spray gun through a high-pressure hose, where the cleaning effect is achieved by the jet of water from the nozzle. Especially in complex and harsh confined spaces, such as cleaning material transport cars or coal transport cars, high-pressure cleaning mechanisms are required to be dust-resistant, moisture-resistant, have precise positioning, and be robust and durable.

[0003] Currently, explosion-proof servo motors are widely used in this field to drive the rotation and positioning of the cleaning mechanism. While this method offers advantages such as relatively simple control, accurate positioning, and small size, its drawbacks are also significant. Due to the complex and harsh working conditions, including high dust, high humidity, and flammable materials, electrically driven servo motors are prone to circuit failures, making maintenance difficult and inconvenient, resulting in short service life and high maintenance costs. More importantly, it poses significant safety hazards and can easily lead to accidents involving personnel, the environment, and equipment. Therefore, there is an urgent need to optimize and improve the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic cam cleaning mechanism to solve the problems of existing technologies that widely use explosion-proof servo motors to drive the cleaning mechanism for rotation and positioning in the field of high-pressure water jet cleaning. Electric servo motors are prone to circuit failures, are difficult and inconvenient to repair, have short service life, and high maintenance costs. More importantly, they pose significant safety hazards and are prone to causing safety accidents involving personnel, environment, and equipment.

[0005] To achieve the above object, the main technical solution adopted by the present utility model includes: a hydraulic cam cleaning mechanism, comprising: a mounting plate, on which a hydraulic rotating component and a cam swinging component are mounted; the hydraulic rotating component includes a high-pressure rotary joint, a hydraulic motor, an external tooth type slewing bearing and a transmission gear, the high-pressure rotary joint is fixedly mounted on the top of the mounting plate, the hydraulic motor is fixedly mounted on the top of the mounting plate, the external tooth type slewing bearing is mounted on the bottom of the mounting plate, the transmission gear is located at the bottom of the mounting plate and fixedly mounted on the output shaft of the hydraulic motor, and the transmission gear is in meshing transmission with the outer ring teeth of the external tooth type slewing bearing; the cam swinging component includes a curved surface cam, a rotating bracket, a rotating sleeve, a tension spring, a guide wheel, a guide bracket and a spray gun, the curved surface cam is fixedly mounted on the bottom of the mounting plate, the rotating bracket is fixedly connected with the outer ring of the external tooth type slewing bearing, the rotating sleeve is mounted on the lower part of the rotating bracket, the spray gun is fixedly connected with the rotating cylinder of the rotating sleeve, the guide wheel is fixedly mounted on the upper end of the guide bracket, the lower end of the guide bracket is connected with the rotating sleeve, and the guide bracket is connected with the rotating bracket through a tension spring.

[0006] As a preferred technical solution, the inner ring of the external tooth type slewing bearing is fixedly connected with the mounting plate by screws.

[0007] As a preferred technical solution, a pedestal outer spherical bearing is fixedly mounted on the rotating bracket, and the rotating sleeve is fixedly mounted in the inner ring of the pedestal outer spherical bearing.

[0008] As a preferred technical solution, the tread surface of the guide wheel directly contacts the curved surface of the curved surface cam, and during the rotation of the rotating bracket, the guide wheel runs up and down along the curved surface track of the curved surface cam.

[0009] As a preferred technical solution, the lower end of the guide bracket is hinged with the rotating sleeve through a joint type connecting rod, and when the guide wheel moves along the curved surface cam track, it can drive the rotating sleeve and the spray gun to adjust the swing angle.

[0010] As a preferred technical solution, pull rings are respectively fixedly mounted on the rotating bracket and the guide bracket, and the two ends of the tension spring are respectively hooked on the two pull rings.

[0011] The present utility model has at least the following beneficial effects:

[0012] This utility model provides a hydraulic cam cleaning mechanism that utilizes a hydraulic motor to drive a rotating component and the curved trajectory of a cam swing component to achieve precise positioning of the spray gun on the cleaning surface. The cam swing component retains the advantages of accurate positioning and simple control of servo motor drive. The hydraulically driven rotating component is unaffected by environments with high dust, high humidity, or flammable materials. The hydraulic system of the mechanism itself is not prone to failure, is robust and durable, has a long service life, and relatively low usage and maintenance costs. It also effectively reduces the occurrence of safety accidents and ensures personal and property safety. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a front cross-sectional view of the hydraulic cam cleaning mechanism of this utility model;

[0015] Figure 2 This is a side sectional view of the hydraulic cam cleaning mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the cam surface and curve trajectory of the hydraulic cam cleaning mechanism of this utility model.

[0017] Explanation of icon numbers:

[0018] 1. Mounting plate; 2. High-pressure rotary joint; 3. Hydraulic motor; 4. External gear slewing bearing; 5. Transmission gear; 6. Curved cam; 7. Rotary bracket; 8. Mounted spherical bearing; 9. Rotary sleeve; 10. Tension spring; 11. Guide wheel; 12. Guide bracket; 13. Spray gun. Detailed Implementation

[0019] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Example

[0020] Please refer to Figures 1 to 3As shown, this embodiment provides a hydraulic cam cleaning mechanism, including: a mounting plate 1, on which a hydraulic rotating component and a cam swing component are mounted; the hydraulic rotating component includes a high-pressure rotary joint 2, a hydraulic motor 3, an external toothed slewing bearing 4, and a transmission gear 5. The high-pressure rotary joint 2 is fixedly mounted on the top of the mounting plate 1, the hydraulic motor 3 is fixedly mounted on the top of the mounting plate 1, the external toothed slewing bearing 4 is mounted on the bottom of the mounting plate 1, and the transmission gear 5 is located at the bottom of the mounting plate 1 and fixedly mounted on the output shaft of the hydraulic motor 3. The transmission gear 5 meshes with the outer ring teeth of the external toothed slewing bearing 4 for transmission; the cam swing component includes a curved cam 6, a rotating bracket 7, a rotating sleeve 9, a tension spring 10, a guide wheel 11, a guide bracket 12, and a spray... The spray gun 13 and the curved cam 6 are fixedly installed at the bottom of the mounting plate 1. The rotating bracket 7 is fixedly connected to the outer ring of the external toothed slewing bearing 4. The rotating sleeve 9 is installed at the lower part of the rotating bracket 7. The spray gun 13 is fixedly connected to the rotating cylinder of the rotating sleeve 9. The guide wheel 11 is fixedly installed at the upper end of the guide bracket 12. The lower end of the guide bracket 12 is connected to the rotating sleeve 9. The guide bracket 12 is connected to the rotating bracket 7 through the tension spring 10. The transmission gear 5 is driven by the hydraulic motor 3 to mesh with the outer ring teeth of the external toothed slewing bearing 4 to achieve stable rotation of the rotating bracket 7, providing a power basis for subsequent cleaning actions. At the same time, the design of the cam swing component allows the spray gun 13 to swing while rotating, expanding the cleaning range and improving the cleaning effect.

[0021] The inner ring of the external toothed slewing bearing 4 is fixedly connected to the mounting plate 1 by screws. This connection method ensures the stability and reliability of the installation of the external toothed slewing bearing 4, enabling the slewing bearing to accurately transmit power and bear load during operation, ensuring the rotation accuracy of the rotating bracket 7, and thus ensuring the accuracy of the movement trajectory of the spray gun 13, which is beneficial to improving the uniformity and accuracy of cleaning.

[0022] The rotating bracket 7 is fixedly mounted with a seated spherical bearing 8, and the rotating sleeve 9 is fixedly mounted in the inner ring of the seated spherical bearing 8. By mounting the seated spherical bearing 8 on the rotating bracket 7 and fixing the rotating sleeve 9 in its inner ring, the seated spherical bearing 8 can provide stable support for the rotating sleeve 9. At the same time, its outer spherical design can automatically align itself, which can compensate for axial deviation caused by installation errors or component deformation, reduce friction and wear of the rotating sleeve 9 during rotation, improve the flexibility and stability of rotation, and extend the service life of the equipment.

[0023] In this design, the tread of the guide wheel 11 directly contacts the curved surface of the curved cam 6. During the rotation of the rotating bracket 7, the guide wheel 11 moves along the curved trajectory of the curved cam 6. This design allows for precise control of the movement trajectory of the guide wheel 11, enabling the spray gun 13 to move along a predetermined complex trajectory, achieving all-round, multi-angle cleaning of the surface of the object being cleaned, and improving the cleaning quality.

[0024] The lower end of the guide bracket 12 is hinged to the rotating sleeve 9 via an articulated connecting rod. When the guide wheel 11 moves along the trajectory of the curved cam 6, it can drive the rotating sleeve 9 and the spray gun 13 to adjust the swing angle. This hinge method makes the swing of the spray gun 13 more flexible and can accurately follow the movement of the guide wheel 11 to achieve precise angle adjustment. This is beneficial for adapting to objects of different shapes and sizes being cleaned and improves the versatility and adaptability of the cleaning mechanism.

[0025] Pull rings are fixedly installed on the rotating bracket 7 and the guide bracket 12 respectively. The two ends of the tension spring 10 are respectively hooked to the two pull rings. By fixing pull rings on the rotating bracket 7 and the guide bracket 12 respectively, and hooking the two ends of the tension spring 10 to the two pull rings respectively, the tension spring 10 can provide a tension force for the guide wheel 11 to closely adhere to the curved cam 6, ensuring that the guide wheel 11 always maintains good contact with the curved surface of the curved cam 6 during the movement, ensuring the accuracy and stability of the guidance. At the same time, the tension spring 10 can also buffer the impact force of the guide wheel 11 during the movement to a certain extent, protecting the mechanism components from damage.

[0026] Working principle: When in use, first open the cleaning fluid supply valve, then start the hydraulic system power supply. The hydraulic motor 3 runs, and its output shaft drives the transmission gear 5 to rotate. The transmission gear 5 meshes with the outer ring teeth of the external toothed slewing bearing 4, driving the outer ring of the external toothed slewing bearing 4, the rotating bracket 7, the rotating sleeve 9, and the spray gun 13 to make circular motion. At the same time, under the tension of the tension spring 10, the guide wheel 11 is pressed against the curved surface of the curved cam 6. As the rotating bracket 7 rotates, the guide wheel 11 moves up and down along the trajectory of the curved cam 6. Through the articulated connecting rod at the lower end of the guide bracket 12, the rotating sleeve 9 and the spray gun 13 are driven to adjust the swing angle, so as to realize the all-round, multi-angle high-pressure cleaning of the object being cleaned.

[0027] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A hydraulic cam cleaning mechanism, characterized in that, include: Mounting plate (1), on which a hydraulic rotating component and a cam swing component are mounted; The hydraulic rotating component includes a high-pressure rotary joint (2), a hydraulic motor (3), an external toothed slewing bearing (4), and a transmission gear (5). The high-pressure rotary joint (2) is fixedly installed on the top of the mounting plate (1), the hydraulic motor (3) is fixedly installed on the top of the mounting plate (1), the external toothed slewing bearing (4) is installed on the bottom of the mounting plate (1), and the transmission gear (5) is located at the bottom of the mounting plate (1) and fixedly installed on the output shaft of the hydraulic motor (3). The transmission gear (5) meshes with the outer ring teeth of the external toothed slewing bearing (4) for transmission. The cam swing component includes a curved cam (6), a rotating bracket (7), a rotating sleeve (9), a tension spring (10), a guide wheel (11), a guide bracket (12), and a spray gun (13). The curved cam (6) is fixedly installed at the bottom of the mounting plate (1). The rotating bracket (7) is fixedly connected to the outer ring of the external toothed slewing bearing (4). The rotating sleeve (9) is installed at the lower part of the rotating bracket (7). The spray gun (13) is fixedly connected to the rotating cylinder of the rotating sleeve (9). The guide wheel (11) is fixedly installed at the upper end of the guide bracket (12). The lower end of the guide bracket (12) is connected to the rotating sleeve (9). The guide bracket (12) is connected to the rotating bracket (7) through the tension spring (10).

2. The hydraulic cam cleaning mechanism according to claim 1, characterized in that: The inner ring of the external toothed slewing bearing (4) is fixedly connected to the mounting plate (1) by screws.

3. The hydraulic cam cleaning mechanism according to claim 2, characterized in that: A mounted spherical bearing (8) is fixedly installed on the rotating bracket (7), and the rotating sleeve (9) is fixedly installed in the inner ring of the mounted spherical bearing (8).

4. The hydraulic cam cleaning mechanism according to claim 1, characterized in that: The tread of the guide wheel (11) is in direct contact with the curved surface of the curved cam (6). During the rotation of the rotating bracket (7), the guide wheel (11) moves along the curved trajectory of the curved cam (6).

5. The hydraulic cam cleaning mechanism according to claim 1, characterized in that: The lower end of the guide bracket (12) is hinged to the rotating sleeve (9) via an articulated connecting rod. When the guide wheel (11) moves along the trajectory of the curved cam (6), it can drive the rotating sleeve (9) and the spray gun (13) to adjust the swing angle.

6. A hydraulic cam cleaning mechanism according to any one of claims 1-5, characterized in that: Pull rings are fixedly installed on the rotating bracket (7) and the guide bracket (12), and the two ends of the tension spring (10) are respectively hooked to the two pull rings.

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