Energy-saving belt conveyor hydraulic tensioning device
By using a plug-and-connector docking structure, the problems of cumbersome welding process and thermal deformation in traditional hydraulic tensioning devices are solved, enabling convenient docking between pulleys and buffer cylinders, and improving production efficiency and component precision.
Patent Information
- Application Number
- CN202520718554.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The welding process of traditional hydraulic tensioning devices is complicated, requiring meticulous cleaning and subsequent processing, which increases the production cycle. In addition, the high temperature of welding causes thermal deformation of the components, affecting dimensional accuracy and geometric tolerances.
The design employs a plug-and-connector docking structure. By inserting the plug into the positioning tongue and adjusting the bolt, the locking plate is engaged into the docking groove, achieving a weld-free docking between the pulley and the buffer cylinder, thus simplifying the process.
The process of connecting the pulley and the buffer cylinder is simplified, avoiding component deformation caused by high-temperature welding, and improving work efficiency and ease of operation.
Smart Images
Figure CN223920292U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of hydraulic tensioning devices, specifically relating to an energy-saving hydraulic tensioning device for belt conveyors. Background Technology
[0002] In modern industrial production, belt conveyors, as highly efficient material handling equipment, are widely used in many fields such as mining, ports, and power. The hydraulic tensioning device of an energy-saving belt conveyor plays a crucial role in ensuring stable belt operation, improving conveying efficiency, and achieving energy-saving goals. However, traditional hydraulic tensioning devices have many defects in component connection processes, especially in the connection of key components such as pulleys and buffer cylinders, where traditional welding methods bring a series of problems that cannot be ignored.
[0003] Traditional welding processes are extremely cumbersome. Before welding, the welding area requires meticulous surface cleaning to remove impurities such as oil and rust, and precise machining of the weld bevel to create favorable conditions for welding. These preparatory works consume a significant amount of time and manpower. After welding, subsequent treatments such as grinding and flaw detection are necessary, further extending the production cycle. Furthermore, the high temperatures generated during welding can cause thermal deformation of the components. For pulleys and buffer cylinders in hydraulic tensioning devices, thermal deformation alters their original dimensional accuracy and geometric tolerances. Utility Model Content
[0004] The purpose of this invention is to provide an energy-saving hydraulic tensioning device for belt conveyors. It aims to solve the problem of the extremely cumbersome traditional welding process. Before welding, meticulous surface cleaning of the welding area is required to remove impurities such as oil and rust, and precise machining of the welding bevel is necessary to create favorable conditions for welding. These preparatory works consume a significant amount of time and manpower. After welding, subsequent processing such as grinding and flaw detection of the weld seam is also required, further increasing the production cycle. Furthermore, the high temperatures generated during welding can cause thermal deformation of the components. For the pulleys and buffer cylinders in the hydraulic tensioning device, thermal deformation can alter their original dimensional accuracy and geometric tolerances.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving hydraulic tensioning device for belt conveyors, including a hydraulic controller, one interface of which is connected to an electrical control box, another interface of which is connected to a tensioning cylinder, another interface of which is connected to a buffer cylinder, and the telescopic end of the buffer cylinder is connected to a connector.
[0006] The other end of the connector is connected to a pulley, and the telescopic end of the buffer cylinder is fixedly installed with a plug. An inner cavity is opened on one side of the connector, and the telescopic end of the buffer cylinder is connected to the inner cavity through the plug.
[0007] To prevent the plug from rotating after being installed in the inner cavity, the hydraulic tensioning device for the energy-saving belt conveyor of this utility model preferably has a matching interface at the end of the plug away from the buffer cylinder, and a positioning tongue is inserted into the inside of the matching interface, with one end of the positioning tongue fixedly installed on the inner wall of the inner cavity.
[0008] In order to enable the locking plate to be adjusted up and down inside the annular groove, as the hydraulic tensioning device for the energy-saving belt conveyor of this utility model, preferably, an adjusting bolt is threaded through the upper and lower sides of the connector, and a movable disc is fixedly connected to one end of the adjusting bolt. The movable disc is movably installed inside the connecting column.
[0009] The end of the connecting post away from the adjusting bolt is fixedly installed on the outer wall of the locking plate. The locking plate is set in the annular groove, which is opened on the inner wall of the inner cavity. A ring of mating grooves is opened on the outer wall of the plug. After the plug is fully installed in the inner cavity, the mating grooves and the inner cavity are concentric.
[0010] In order to ensure that the locking plate can be fully engaged in the docking groove, thereby fixing the plug in the inner cavity, the width of the locking plate is preferably matched with the width of the docking groove in this utility model of energy-saving belt conveyor hydraulic tensioning device.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] When it is necessary to connect the pulley and the buffer cylinder, insert the plug of the extension end of the buffer cylinder into the inner cavity of the connector. After the plug is fully inserted into the inner cavity, the interface at one end of the plug will also engage with the positioning tongue, thus completing the initial connection between the plug and the connector.
[0013] Next, adjust the adjusting bolts on both sides of the connector towards the inside of the connector. When the adjusting bolts move, they will drive the locking plate to one side through the connecting post. Finally, the locking plate will be locked into the mating groove, so that the plug will be fixed in the connector. This allows the buffer cylinder and the pulley to be smoothly connected.
[0014] The above solution does not use traditional welding methods for docking, which simplifies the process requirements for docking the buffer cylinder and the pulley, and makes the docking between the buffer cylinder and the pulley easier to operate. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.
[0017] Figure 2 This is a side cross-sectional view of the connector structure provided in an embodiment of this application.
[0018] Figure 3 This is a schematic diagram of the plug structure provided in an embodiment of this application.
[0019] Figure 4 This is a schematic diagram of the connecting column connection structure provided in an embodiment of this application.
[0020] Figure 5 This is a schematic diagram of the installation structure of the active disk provided in an embodiment of this application.
[0021] In the diagram: 1. Hydraulic controller; 2. Electrical control box; 3. Tensioning cylinder; 4. Buffer cylinder; 5. Connector; 51. Adjusting bolt; 52. Movable disc; 53. Connecting column; 54. Locking plate; 55. Inner cavity; 56. Annular groove; 6. Pulley; 7. Plug; 71. Docking groove; 8. Docking interface; 9. Positioning tongue. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5 The present invention provides the following technical solution: an energy-saving belt conveyor hydraulic tensioning device, including a hydraulic controller 1, one interface of the hydraulic controller 1 is connected to the electrical control box 2, another interface of the hydraulic controller 1 is connected to the tensioning cylinder 3, another interface of the tensioning cylinder 3 is connected to the buffer cylinder 4, and the telescopic end of the buffer cylinder 4 is connected to the connector 5.
[0024] In use, the buffer cylinder 4 is connected to the traveling trolley at the bottom of the energy-saving belt conveyor via the pulley 6 at the front end. A set of pulleys is set on both sides of the traveling trolley. In addition, a rope winding machine is also set on one side of the buffer cylinder 4. In use, the traveling trolley can be moved by the cooperation of the hydraulic controller 1, the electrical control box 2, the tension cylinder 3 and the buffer cylinder 4. When the traveling trolley moves, it can drive the energy-saving belt conveyor to complete the corresponding belt tightening and loosening operations.
[0025] The other end of the connector 5 is connected to a pulley 6, and the telescopic end of the buffer cylinder 4 is fixedly installed with a plug 7. An inner cavity 55 is opened on one side of the connector 5, and the telescopic end of the buffer cylinder 4 is connected to the inner cavity 55 through the plug 7.
[0026] Preferably, the end of the plug 7 away from the buffer cylinder 4 has a mating interface 8, and a positioning tongue 9 is inserted into the mating interface 8. One end of the positioning tongue 9 is fixedly installed on the inner wall of the inner cavity 55.
[0027] In actual use, when the plug 7 is connected to the inner cavity 55, the interface 8 must be in a horizontal position so that the interface 8 can be smoothly connected to the positioning tongue 9.
[0028] Preferably, an adjusting bolt 51 is threaded through the upper and lower sides of the connector 5, and a movable disc 52 is fixedly connected to one end of the adjusting bolt 51. The movable disc 52 is movably installed inside the connecting post 53.
[0029] The end of the connecting post 53 away from the adjusting bolt 51 is fixedly installed on the outer wall of the locking plate 54. The locking plate 54 is located in the annular groove 56, which is opened on the inner wall of the inner cavity 55. A ring of mating grooves 71 is opened on the outer wall of the plug 7. After the plug 7 is fully installed in the inner cavity 55, the mating grooves 71 and the inner cavity 55 are in a concentric structure.
[0030] Preferably, the width of the locking piece 54 is adapted to the width of the mating groove 71.
[0031] In practical use, when it is necessary to connect pulley 6 with buffer cylinder 4, firstly, insert the plug 7 on the telescopic end of buffer cylinder 4 into the inner cavity 55 of connector 5. The size of the inner cavity 55 of connector 5 is adapted to the plug 7. After the plug 7 is fully inserted into the inner cavity 55, the pre-set mating interface 8 at one end of the plug 7 will also connect with the positioning tongue 9. This step completes the initial connection between plug 7 and connector 5, allowing them to be initially connected and positioned.
[0032] Next, adjust the adjusting bolts 51 on both sides of the connector 5, moving them inwards. During adjustment, the adjusting bolts 51 engage with the side wall of the connector 5 via threads. Rotating the adjusting bolts 51 causes them to move inwards. One end of the adjusting bolt 51 is connected to the locking plate 54 via a connecting post 53. As the adjusting bolt 51 moves, the connecting post 53 drives the locking plate 54 to move synchronously to one side. A mating groove 71 is provided on the outer wall of the plug 7. When the locking plate 54 is in place, it precisely engages with the mating groove 71, thus firmly fixing the plug 7 within the connector 5. Through these operations, the buffer cylinder 4 and the pulley 6 can be smoothly connected.
[0033] Compared to traditional welding methods, the above solution eliminates the need for high-temperature welding. Traditional welding requires specialized equipment and skilled welders, and the high temperatures generated during welding can affect the material properties of the buffer cylinder 4 and pulley 6, leading to component deformation or performance degradation. This solution simplifies the complex process requirements for connecting the buffer cylinder 4 and pulley 6, eliminating the need for pre-welding beveling and post-welding grinding. The entire connection process is simple to operate, requiring only simple insertion, removal, and adjustment to complete the connection, greatly improving work efficiency and making the connection between the buffer cylinder 4 and pulley 6 much easier to operate.
[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. Energy-saving belt conveyor hydraulic tensioning device, comprising a hydraulic controller (1), one interface of the hydraulic controller (1) is connected with an electric control box (2), the other interface of the hydraulic controller (1) is connected with a tensioning oil cylinder (3), the other interface of the tensioning oil cylinder (3) is connected with a buffer oil cylinder (4), characterized in that, The buffer oil cylinder (4) is connected with the connecting head (5); The other end of the connecting head (5) is connected with a pulley (6), the buffer oil cylinder (4) is fixedly installed with a plug (7), one side of the connecting head (5) is provided with an inner cavity (55), and the buffer oil cylinder (4) is connected with the inner cavity (55) through the plug (7).
2. The energy-saving belt conveyor hydraulic tensioning device according to claim 1, characterized in that: The end of the plug (7) away from the buffer oil cylinder (4) is provided with a butt joint (8), the butt joint (8) is inserted with a positioning tongue (9), and one end of the positioning tongue (9) is fixedly installed on the inner wall of the inner cavity (55).
3. The energy-saving belt conveyor hydraulic tensioning device according to claim 1, characterized in that: The upper and lower sides of the connecting head (5) are respectively threaded and penetrated by one adjusting bolt (51), one end of the adjusting bolt (51) is fixedly connected with a movable disc (52), and the movable disc (52) is movably installed in the connecting column (53).
4. The energy-saving belt conveyor hydraulic tensioning device according to claim 3, characterized in that: The end of the connecting column (53) away from the adjusting bolt (51) is fixedly installed on the outer wall of the lock sheet (54), the lock sheet (54) is arranged in the annular groove (56), and the annular groove (56) is arranged on the inner wall of the inner cavity (55).
5. The energy-saving belt conveyor hydraulic tensioning device according to claim 1, characterized in that: A circle of butt joints (71) is arranged on the outer wall of the plug (7), and the plug (7) is completely installed in the inner cavity (55), so that the butt joints (71) and the inner cavity (55) are in a concentric structure.
6. The energy-saving belt conveyor hydraulic tensioning device according to claim 4, characterized in that: The width of the lock sheet (54) is matched with the width of the butt joint (71).