Constant tension control device of hydraulic winch

Abstract

The utility model discloses a hydraulic winch constant tension control device which comprises a machine frame, one side of the machine frame is fixedly connected with a hydraulic motor, the output end of the hydraulic motor extends into the machine frame to be fixedly connected with a winch, one side of the machine frame is fixedly connected with a supporting frame, and the supporting frame is fixedly connected with a hydraulic motor. A tension sensing detection roller is rotationally connected into the supporting frame. Through cooperation of the rack, the hydraulic motor, the winch, the supporting frame, the tension sensing and detecting roller and the tension detector, the tension sensing and detecting roller can detect the tension of the cable and transmit the tension into the tension detector, and then when the tension of the cable needs to be adjusted, the tension of the cable can be detected by the tension sensing and detecting roller. Through cooperation of the bearing strip, the servo motor, the hydraulic cylinder, the downward pressing frame and the downward pressing roller, the downward pressing roller can be used for pressing the cable downwards, so that the tension of the cable can be improved, otherwise, the tension of the cable can be reduced by ascending the downward pressing roller, and the safety of the cable in use can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic winches, in particular to a constant tension control device for hydraulic winches. Background Art

[0002] Hydraulic winch is widely used in marine engineering, construction, water conservancy engineering, forestry, mining, docks, etc. for lifting or flat towing of materials. The hydraulic winch structure is mainly composed of hydraulic motor (low-speed or high-speed motor), hydraulic normally closed multi-disc brake, planetary gearbox, clutch (optional), drum, support shaft, frame, rope presser (optional), etc. This series of winches has the characteristics of compact structure, small size, light weight, beautiful appearance, etc. In terms of performance, it has the characteristics of good safety, high efficiency, large starting torque, good low-speed stability, low noise, reliable operation, etc.

[0003] After searching, a hydraulic winch disclosed in Chinese patent application No. 202321411087.2 is related to the field of hydraulic winch technology, including a gearbox and a side table. A hydraulic motor is fixedly installed on one side of the gearbox. The output end of the hydraulic motor is fixedly connected to the input and output ends of the gearbox, and the hydraulic motor is electrically connected to an external controller through a connecting line. A reel is rotatably installed between the gearbox and the side table. The central axis of the reel is fixedly connected to the output end of the gearbox. A cleaning mechanism is provided at the front end of the side table, and the cleaning mechanism includes a mounting plate. A cleaning mechanism is provided on the side table, and the cleaning mechanism consists of a mounting plate, a locking screw, a guide shaft, and a sleeve and plug installed on the guide shaft, and a mounting ring. When the cable is gradually reeled to the outside of the reel, the cable will pass through the wiping ring on the inner side of the mounting ring to clean the outside of the cable, and the sleeve that can slide on the guide shaft is conducive to the adaptive movement of the cable when the cable is reeled and pressed on the outside of the reel.

[0004] Although the above-mentioned patent allows the cable to pass through the wiping ring on the inner side of the mounting ring to clean the outside of the cable when the cable is gradually reeled to the outside of the drum, and the sleeve that can slide on the guide shaft facilitates the adaptive movement of the cable when it is reeled and pressed on the outside of the drum, in actual use, the patent cannot detect the tension of the cable and cannot adjust the tension of the cable. This leads to the situation that in some lifting working environments such as marine engineering, the tension of the cable may suddenly change during use. At this time, excessive tension may easily cause the cable to break, and excessive tension may easily cause the cable to loosen and cause the equipment to collide, which makes the patent have certain safety hazards.

[0005] Therefore, it is necessary to modify the hydraulic winch in the above patent to effectively prevent the problem that the tension of the cable can be detected but the tension of the cable cannot be adjusted. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a hydraulic winch constant tension control device, which has the advantage of being able to detect and adjust the tension of the cable, thereby improving the safety during use, and solves the problem that the tension of the cable can be detected but cannot be adjusted.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic winch constant tension control device, comprising a frame, one side of the frame is fixedly connected to a hydraulic motor, the output end of the hydraulic motor extends to the inside of the frame and is fixedly connected to a capstan, one side of the frame is fixedly connected to a support frame, the inside of the support frame is rotatably connected to a tension sensing detection roller, one side of the tension sensing detection roller is provided with a tension detector, and the tension detector is fixedly connected to the frame, the top of the frame is fixedly connected to a load-bearing bar, the top of the load-bearing bar is symmetrically fixedly connected to a servo motor, a hydraulic cylinder is provided at the bottom of the servo motor, the output end of the hydraulic cylinder is fixedly connected to a lower pressure frame, and the inside of the lower pressure frame is rotatably connected to a lower pressure roller.

[0008] As a preferred embodiment of the utility model, a hydraulic station is fixedly connected to the top of the bearing bar, and the hydraulic station is used in conjunction with a hydraulic cylinder.

[0009] As a preferred embodiment of the utility model, triangular support blocks are symmetrically fixedly connected to both sides of the bearing bar, and the triangular support blocks are fixedly connected to the frame.

[0010] As a preferred embodiment of the utility model, a brake structure is fixedly connected to the outer side of the frame symmetrically with respect to the hydraulic motor, and the brake structure is used in conjunction with the winch.

[0011] As a preferred embodiment of the utility model, the top of the support frame is fixedly connected to a limiting frame, the interior of the limiting frame is rotatably connected to a limiting roller, and the limiting roller is used in conjunction with a tension sensing detection roller.

[0012] As a preferred embodiment of the present invention, the lower pressure roller is located between the capstan and the tension sensing detection roller and is not in contact with either of them.

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

[0014] 1. The utility model can make the tension sensing roller detect the tension of the cable and transmit the tension to the tension detector through the cooperation of the frame, hydraulic motor, winch, support frame, tension sensing roller and tension detector. When the cable tension needs to be adjusted, the cable can be pressed down by the pressure roller through the cooperation of the load-bearing bar, servo motor, hydraulic cylinder, pressure frame and pressure roller, so as to increase the tension of the cable. Conversely, raising the pressure roller can reduce the tension of the cable, so as to improve the safety of the cable when in use.

[0015] 2. The utility model can provide power for the hydraulic cylinder through the setting of the hydraulic station, so that the servo motor converts electrical energy into mechanical energy, drives the hydraulic station to work, promotes the flow of hydraulic oil, and then drives the hydraulic cylinder to extend and retract. The power of the servo motor determines the output power of the hydraulic station, thereby affecting the extension and retraction speed and carrying capacity of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model from another angle;

[0018] Figure 3 This is a three-dimensional schematic diagram of the cooperation between the lower pressing roller and the tension sensing detection roller of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the lower pressing roller of the utility model.

[0020] In the figure: 1. frame; 2. hydraulic motor; 3. capstan; 4. support frame; 5. tension sensing detection roller; 6. tension detector; 7. load-bearing bar; 8. servo motor; 9. hydraulic cylinder; 10. lower pressure frame; 11. lower pressure roller; 12. hydraulic station; 13. triangular support block; 14. brake structure; 15. limit frame; 16. limit roller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, the utility model provides a hydraulic winch constant tension control device, including a frame 1, one side of the frame 1 is fixedly connected to a hydraulic motor 2, the output end of the hydraulic motor 2 extends to the inside of the frame 1 and is fixedly connected to a capstan 3, one side of the frame 1 is fixedly connected to a support frame 4, the inside of the support frame 4 is rotatably connected to a tension sensing detection roller 5, one side of the tension sensing detection roller 5 is provided with a tension detector 6, and the tension detector 6 is fixedly connected to the frame 1, the top of the frame 1 is fixedly connected to a load-bearing bar 7, the top of the load-bearing bar 7 is symmetrically fixedly connected to a servo motor 8, the bottom of the servo motor 8 is provided with a hydraulic cylinder 9, the output end of the hydraulic cylinder 9 is fixedly connected to a lower pressure frame 10, and the inside of the lower pressure frame 10 is rotatably connected to a lower pressure roller 11.

[0023] refer to Figure 1 and Figure 4 A hydraulic station 12 is fixedly connected to the top of the load-bearing bar 7 , and the hydraulic station 12 is used in conjunction with the hydraulic cylinder 9 .

[0024] As a technical optimization scheme of the utility model, through the setting of the hydraulic station 12, it is possible to provide power for the hydraulic cylinder 9, so that the servo motor 8 converts electrical energy into mechanical energy, drives the hydraulic station 12 to work, promotes the flow of hydraulic oil, and then drives the hydraulic cylinder 9 to extend and retract. The power of the servo motor 8 determines the output power of the hydraulic station 12, thereby affecting the extension and retraction speed and carrying capacity of the hydraulic cylinder 9.

[0025] refer to Figure 1 and Figure 3 , triangular support blocks 13 are symmetrically fixedly connected to both sides of the bearing bar 7, and the triangular support blocks 13 are fixedly connected to the frame 1.

[0026] As a technical optimization solution of the present invention, by providing the triangular support block 13, the supporting force of the bearing bar 7 can be improved, so that the installation of the bearing bar 7 is more stable.

[0027] refer to Figure 1 and Figure 2 A brake structure 14 is symmetrically fixedly connected to the outer side of the frame 1 about the hydraulic motor 2 , and the brake structure 14 is used in conjunction with the winch 3 .

[0028] As a technical optimization solution of the utility model, the winch 3 can be braked by setting the braking structure 14 to prevent the winch 3 from rotating autonomously. The braking structure 14 can adopt existing technology, such as a winch hydraulic braking system disclosed in Chinese patent application No. 202221509912.8.

[0029] refer to Figure 1 The top of the support frame 4 is fixedly connected to a limiting frame 15 , the interior of the limiting frame 15 is rotatably connected to a limiting roller 16 , and the limiting roller 16 is used in conjunction with the tension sensing detection roller 5 .

[0030] As a technical optimization solution of the present invention, by providing the limiting frame 15 and the limiting roller 16, the cable can be limited to prevent the cable from tilting during use.

[0031] refer to Figure 2 and Figure 3 The lower pressure roller 11 is located between the capstan 3 and the tension sensing detection roller 5 and is not in contact with either of them.

[0032] As a technical optimization solution of the utility model, the lower pressure roller 11 is located between the capstan 3 and the tension sensing detection roller 5 and is not in contact with either of them, thereby preventing the lower pressure roller 11 from colliding with the capstan 3 or the tension sensing detection roller 5 when moving.

[0033] The working principle and use process of the utility model are as follows: when using the device, first install the device to the specified position, then extend the cable to the bottom of the lower pressure roller 11, and make it pass through the tension sensing detection roller 5 and the limit roller 16 to connect with the external object. At this time, the hydraulic motor 2 can be started to drive the capstan 3 to rotate, so that the cable can be tightened, and then the capstan 3 can be braked by the braking structure 14 to prevent it from rotating. At this time, the tension sensing detection roller 5 detects the tension of the cable and transmits its tension to the tension detector 6. When the cable tension needs to be adjusted, it is only necessary to start the servo motor 8 to provide power for the hydraulic cylinder 9, so that the servo motor 8 converts electrical energy into mechanical energy, drives the hydraulic station 12 to work, promotes the flow of hydraulic oil, and then drives the hydraulic cylinder 9 to extend and retract, and then can push the lower pressure roller 11 on the lower pressure frame 10 to move downward, so that the lower pressure roller 11 can squeeze the cable, thereby increasing the tension of the cable. Conversely, raising the lower pressure roller 11 can reduce the tension of the cable, thereby realizing the control of the cable tension, and then can improve the safety of the cable when in use.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. A hydraulic winch constant tension control device, comprising a frame (1), characterized in that: A hydraulic motor (2) is fixedly connected to one side of the frame (1), and the output end of the hydraulic motor (2) extends to the inside of the frame (1) and is fixedly connected to a winch (3). A support frame (4) is fixedly connected to one side of the frame (1), and the inside of the support frame (4) is rotatably connected to a tension sensing detection roller (5). A tension detector (6) is provided on one side of the tension sensing detection roller (5), and the tension detector (6) is fixedly connected to the frame (1). A bearing bar (7) is fixedly connected to the top of the bearing bar (7), and a servo motor (8) is symmetrically fixedly connected to the top of the servo motor (8). A hydraulic cylinder (9) is provided at the bottom of the servo motor (8), and the output end of the hydraulic cylinder (9) is fixedly connected to a lower pressure frame (10), and the inside of the lower pressure frame (10) is rotatably connected to a lower pressure roller (11).

2. A hydraulic winch constant tension control device according to claim 1, characterized in that: The top of the bearing bar (7) is fixedly connected to a hydraulic station (12), and the hydraulic station (12) is used in conjunction with the hydraulic cylinder (9).

3. A hydraulic winch constant tension control device according to claim 1, characterized in that: Triangular support blocks (13) are symmetrically and fixedly connected to both sides of the bearing bar (7), and the triangular support blocks (13) are fixedly connected to the frame (1).

4. A hydraulic winch constant tension control device according to claim 1, characterized in that: A brake structure (14) is symmetrically fixedly connected to the outer side of the frame (1) with respect to the hydraulic motor (2), and the brake structure (14) is used in conjunction with the winch (3).

5. A hydraulic winch constant tension control device according to claim 1, characterized in that: The top of the support frame (4) is fixedly connected to a limiting frame (15), the interior of the limiting frame (15) is rotatably connected to a limiting roller (16), and the limiting roller (16) is used in conjunction with the tension sensing detection roller (5).

6. A hydraulic winch constant tension control device according to claim 1, characterized in that: The lower pressure roller (11) is located between the capstan (3) and the tension sensing detection roller (5) and is not in contact with either of them.

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