Efficient traction device for arch bridge cable hoisting

Abstract

The utility model provides an efficient traction device for hoisting an arch bridge cable, which relates to the field of hoisting of arch bridge cables and comprises a base, the winch comprises a winding drum, a speed reducer, a motor, a steel wire rope and an oil outlet pipe head. Through the arrangement of the lubricating oil circulating assembly, in the operation process of the motor, lubricating oil in the three-way pipe fitting can be conveyed into the oil spraying shell and then sprayed to the upper portion of a gear in the speed reducer through the oil spraying head at the bottom of the oil spraying shell, the circulating lubricating effect on the gear in the speed reducer is achieved, and the lubricating effect on the gear in the speed reducer is improved; therefore, the winch can operate more efficiently; the problems that in the using process of a traditional winch, although lubricating oil is injected into a speed reducer, the lubricating oil is located on the lower side in the speed reducer all the time, so that gears and other parts on the upper side in the speed reducer cannot be effectively lubricated, and the high efficiency of the winch during operation can be affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of arch bridge cable hoisting technology, and in particular to a high-efficiency traction device for arch bridge cable hoisting. Background Technology

[0002] With the rapid development of modern bridge engineering, steel box girder tied arch bridges are widely used in various projects due to their beautiful curves and excellent structural performance, especially in plain areas. Cable hoisting is a crucial step in the construction of steel box girder tied arch bridges, directly affecting the stability of the bridge and the safety of construction. Traction devices are required during the hoisting of arch bridge cables. The most commonly used traction device in arch bridge cable hoisting construction is the winch. A winch consists of a base, drum, motor, and reducer.

[0003] However, in traditional winches, although lubricating oil is added inside the reducer, the lubricating oil is always located at the lower part of the reducer. This results in ineffective lubrication of the gears and other parts inside the reducer, which affects the efficiency of the winch's operation. Furthermore, the lubricating oil inside the reducer is prone to loss, and the reducer lacks an effective liquid level observation structure. As a result, it is not easy for operators to notice when the lubricating oil level inside the reducer is low, leading to accelerated wear of the gear parts inside the reducer and thus shortening the service life of the reducer on the winch. Summary of the Invention

[0004] This disclosure relates to a high-efficiency traction device for cable hoisting of arch bridges. Through the arrangement of a lubricating oil circulation component, the input shaft of the oil pump body rotates clockwise during motor operation, thereby transporting the lubricating oil inside the three-way fitting through the oil delivery pipe to the inside of the oil spray housing. The oil is then sprayed through the spray nozzle at the bottom of the oil spray housing onto the upper part of the gear inside the reducer, and finally flows downwards back to the lower side of the reducer under gravity. This achieves circulating lubrication of the gears inside the reducer, improving lubrication and thus making the winch operation more efficient.

[0005] In a first aspect, this disclosure provides a high-efficiency traction device for cable hoisting of arch bridges, specifically comprising: a base, on which a winch is mounted; the winch includes a drum, a reducer, a motor, a wire rope, and an oil outlet pipe; the drum is rotatably connected to the rear right side of the upper end face of the base; the reducer is mounted on the left side of the upper end face of the base, and the output shaft of the reducer is fixedly connected to the left end of the rotating shaft of the drum; a wire rope is wound on the drum; the motor is mounted on the front right side of the upper end face of the base, and the rotating shaft of the motor is fixedly connected to the input shaft of the reducer; an oil outlet pipe is provided at the bottom of the reducer, and the oil outlet pipe is connected to a lubricating oil circulation assembly, the lubricating oil circulation assembly being provided with a transparent pipe.

[0006] In at least some embodiments, the winch further includes a one-way bearing and a drive pulley, wherein the inner ring of the one-way bearing is fixedly connected to the shaft of the motor, and the drive pulley is fixedly mounted on the outer ring of the one-way bearing.

[0007] In at least some embodiments, the lubricating oil circulation assembly includes an oil pump body, a tee fitting, a driven pulley, an oil delivery pipe, and an oil injection housing. The oil pump body is fixedly mounted on the upper surface of the base, and the oil pump body's suction port is connected to the tee fitting. The left end of the tee fitting is connected to the oil outlet head, and the upper interface of the middle side of the tee fitting is fixedly connected to the lower end of the transparent pipe. The oil pump body's oil outlet is connected to the oil delivery pipe, and the other end of the oil delivery pipe is connected to the oil injection housing. The oil injection housing is fixedly mounted on the top of the reducer, and the bottom of the oil injection housing is uniformly provided with oil nozzles, which are located above the gears inside the reducer. A driven pulley is fixedly mounted on the input shaft of the oil injection housing, and the driven pulley is connected to the driving pulley via a belt. When the motor shaft rotates clockwise with the inner ring of the one-way bearing, the outer ring of the one-way bearing rotates clockwise with the driving pulley and the driven pulley, and at this time, the oil pump body's suction port is in a negative pressure state.

[0008] In at least some embodiments, the upper end of the transparent tube is provided with an oil filling port, and the upper end of the oil filling port is rotatably connected to a protective cover plate via a rotating shaft; the upper surface of the protective cover plate has two rectangular openings, and each rectangular opening is slidably connected to a buckle, and each rectangular opening is equipped with a spring.

[0009] In at least some embodiments, a snap-fit ​​block is fixedly connected to the filler neck, and the snap-fit ​​block has a snap-fit ​​notch.

[0010] In at least some embodiments, when the protective cover is closed above the filler neck, both latches engage with the latching notch.

[0011] This utility model provides a high-efficiency traction device for cable hoisting of arch bridges, which has the following advantages:

[0012] By incorporating a lubricating oil circulation assembly, the input shaft of the oil pump body rotates clockwise during motor operation, thereby delivering the lubricating oil inside the three-way fitting through the oil delivery pipe to the inside of the oil injection housing. The oil is then sprayed onto the upper part of the gears inside the reducer through the oil nozzle at the bottom of the oil injection housing, and finally flows downwards back to the lower side of the reducer under the action of gravity. In this way, the internal gears of the reducer can be circulated and lubricated, improving the lubrication effect and making the winch more efficient during operation.

[0013] With the transparent fittings, the lubricating oil level inside the reducer can be easily detected. Therefore, when the lubricating oil level inside the reducer is low, it is easier for the staff to notice, thus avoiding accelerated wear of the gear parts inside the reducer and effectively extending the service life of the reducer. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 A structural schematic diagram of the overall structure of this application is shown;

[0018] Figure 2 This diagram shows the overall structure of the present application after removing the base;

[0019] Figure 3 A schematic diagram of the structure of the electric motor, one-way bearing, drive pulley, and lubricating oil circulation mechanism of this application is shown;

[0020] Figure 4 A schematic diagram of the lubricating oil circulation mechanism of this application is shown;

[0021] Figure 5 The diagram shows the structure of the transparent pipe fitting, oil filler, protective cover, rectangular through-hole, snap fastener and snap block of this application;

[0022] Figure 6 A schematic diagram of the protective cover of this application in the open state is shown.

[0023] List of reference numerals

[0024] 1. Base;

[0025] 2. Winch; 201. Drum; 202. Reducer; 203. Electric motor; 204. Wire rope; 205. Oil outlet pipe; 206. One-way bearing; 207. Drive pulley;

[0026] 3. Lubricating oil circulation assembly; 301. Oil pump body; 302. Tee fitting; 303. Driven pulley; 304. Oil delivery pipe; 305. Injection housing;

[0027] 4. Transparent fittings; 401. Filler neck; 402. Protective cover; 403. Rectangular opening; 404. Clip-on fittings; 405. Clip-on block; 406. Clip-on notch. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] This utility model proposes a high-efficiency traction device for cable hoisting of arch bridges, comprising: a base 1, with a winch 2 mounted on the upper part of the base 1; the winch 2 includes a drum 201, a reducer 202, a motor 203, a wire rope 204, and an oil outlet head 205. The drum 201 is rotatably connected to the rear right side of the upper end face of the base 1, the reducer 202 is mounted on the left side of the upper end face of the base 1, and the output shaft of the reducer 202 is fixedly connected to the left end of the rotating shaft of the drum 201. The wire rope 204 is wound on the drum 201. The motor 203 is mounted on the front right side of the upper end face of the base 1, and the rotating shaft of the motor 203 is fixedly connected to the input shaft of the reducer 202. An oil outlet head 205 is provided at the bottom of the reducer 202, and the oil outlet head 205 is connected to a lubricating oil circulation assembly 3. A transparent pipe 4 is provided on the lubricating oil circulation assembly 3, through which the level of lubricating oil inside the reducer 202 can be easily detected.

[0031] The winch 2 also includes a one-way bearing 206 and a drive pulley 207. The inner ring of the one-way bearing 206 is fixedly connected to the shaft of the motor 203, and the drive pulley 207 is fixedly installed on the outer ring of the one-way bearing 206 to drive the driven pulley 303 to rotate.

[0032] The lubricating oil circulation assembly 3 includes an oil pump body 301, a three-way fitting 302, a driven pulley 303, an oil delivery pipe 304, and an oil injection housing 305. The oil pump body 301 is fixedly mounted on the upper surface of the base 1, and the oil suction port of the oil pump body 301 is connected to the three-way fitting 302. The left end of the three-way fitting 302 is connected to the oil outlet head 205, and the upper interface of the middle side of the three-way fitting 302 is fixedly connected to the lower end of the transparent fitting 4. The oil outlet of the oil pump body 301 is connected to the oil delivery pipe 304, and the other end of the oil delivery pipe 304 is connected to the oil injection housing 305. The oil injection housing 305 is fixedly mounted on the top of the reducer 202, and the bottom of the oil injection housing 305 is uniformly provided with oil injection heads, which are located above the gears inside the reducer 202. The input shaft of the oil injection housing 305 is... A passive pulley 303 is fixedly installed and is connected to the driving pulley 207 via a belt. When the shaft of the motor 203 rotates clockwise with the inner ring of the one-way bearing 206, the outer ring of the one-way bearing 206 rotates clockwise with the driving pulley 207 and the passive pulley 303. At this time, the oil pump body 301 is in a negative pressure state. With the setting of the lubricating oil circulation component 3, the input shaft of the oil pump body 301 can rotate clockwise during the operation of the motor 203, thereby transporting the lubricating oil inside the three-way fitting 302 to the inside of the oil injection housing 305 through the oil delivery pipe 304, and then spraying it onto the upper part of the gear inside the reducer 202 through the oil spray head at the bottom of the oil injection housing 305, thereby improving the lubrication effect on the gear inside the reducer 202.

[0033] Example 2, based on Example 1, such as Figure 1 , Figure 5 and Figure 6 As shown, the upper end of the transparent tube 4 is provided with a filling port 401 for adding lubricating oil. The upper end of the filling port 401 is rotatably connected to a protective cover plate 402 via a rotating shaft. The upper surface of the protective cover plate 402 has two rectangular openings 403, and each rectangular opening 403 has a snap fastener 404 slidably connected inside. Each rectangular opening 403 has a spring installed inside. A snap-fit ​​block 405 is fixedly connected to the filling port 401, and the snap-fit ​​block 405 has a snap-fit ​​notch 406 for snapping with the snap fastener 404. The protective cover plate 402 is used to cover the filling port 401.

[0034] When the protective cover 402 is closed above the oil filler port 401, both fasteners 404 engage with the notches 406, thus effectively fixing the protective cover 402 in the closed state.

[0035] The working principle of this embodiment is as follows: When in use, firstly, the two fasteners 404 are simultaneously squeezed in opposite directions to separate the two fasteners 404 from the snap-fit ​​notch 406. Then, the protective cover 402 is rotated open. Then, lubricating oil is added into the transparent tube 4 through the oil filling port 401. Subsequently, the lubricating oil enters the reducer 202 through the tee fitting 302 and the oil outlet head 205. Then, under the action of gravity, the lubricating oil will be located on the lower side inside the reducer 202.

[0036] During the cable hoisting process of the arch bridge, one end of the arch bridge cable is first connected to one end of the wire rope 204. Then, the motor 203 is started, which rotates the input shaft of the reducer 202, the output shaft of the reducer 202, and the rotating shaft of the drum 201. Finally, the drum 201 rotates, and the rotating drum 201 winds the wire rope 204. The wound wire rope 204 pulls the arch bridge cable, and then the arch bridge cable can be hoisted.

[0037] During the operation of the motor 203, when the shaft of the motor 203 rotates clockwise, it will cause the inner ring of the one-way bearing 206 to rotate clockwise. Then, the outer ring of the one-way bearing 206 will cause the driving pulley 207 and the driven pulley 303 to rotate clockwise, thereby causing the input shaft of the oil pump body 301 to rotate clockwise. At this time, the oil pump body 301 is in a negative pressure state at the oil suction port, thereby delivering the lubricating oil inside the three-way fitting 302 to the inside of the oil injection housing 305 through the oil delivery pipe 304. Finally, it is sprayed onto the upper part of the gear inside the reducer 202 through the oil nozzle at the bottom of the oil injection housing 305. Then, under the action of gravity, the lubricating oil on the gear inside the reducer 202 flows downward back to the lower side inside the reducer 202.

[0038] During long-term operation of the winch 2, when the lubricating oil inside the reducer 202 is depleted, the lubricating oil level inside the reducer 202 will first drop. Then, due to gravity, the lubricating oil level inside the transparent tube 4 will be at the same height as the lubricating oil level inside the reducer 202. Therefore, the operator can easily detect the lubricating oil level inside the reducer 202 through the transparent tube 4. Thus, when the lubricating oil level inside the reducer 202 is low, it is easier for the operator to notice.

[0039] The following points should be noted in this article:

[0040] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0041] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0042] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A high-efficiency traction device for cable hoisting of arch bridges, comprising: A base (1) is provided, on which a winch (2) is mounted; characterized in that the winch (2) includes a drum (201), a reducer (202), a motor (203), a wire rope (204), and an oil outlet pipe (205), wherein the drum (201) is rotatably connected to the rear right side of the upper end face of the base (1), and the reducer (202) is mounted on the left side of the upper end face of the base (1), and the output shaft of the reducer (202) is connected to the drum (201). The left end of the rotating shaft of the drum (201) is fixedly connected, and the steel wire rope (204) is wound on the drum (201). The motor (203) is installed on the right side of the front end of the upper end of the base (1), and the rotating shaft of the motor (203) is fixedly connected to the input shaft of the reducer (202). The reducer (202) is provided with an oil outlet head (205) at the bottom, and the oil outlet head (205) is connected to a lubricating oil circulation assembly (3). A transparent tube (4) is provided on the lubricating oil circulation assembly (3).

2. The high-efficiency traction device for cable hoisting of arch bridges according to claim 1, characterized in that: The winch (2) also includes a one-way bearing (206) and a drive pulley (207). The inner ring of the one-way bearing (206) is fixedly connected to the shaft of the motor (203), and the drive pulley (207) is fixedly installed on the outer ring of the one-way bearing (206).

3. The high-efficiency traction device for cable hoisting of arch bridges according to claim 2, characterized in that: The lubricating oil circulation assembly (3) includes an oil pump body (301), a three-way fitting (302), a driven pulley (303), an oil delivery pipe (304), and an oil spray housing (305). The oil pump body (301) is fixedly installed on the upper surface of the base (1), and the oil suction port of the oil pump body (301) is connected to the three-way fitting (302). The left end of the three-way fitting (302) is connected to the oil outlet head (205), and the upper interface of the middle side of the three-way fitting (302) is fixedly connected to the lower end of the transparent fitting (4). The oil outlet of the oil pump body (301) is connected to the oil delivery pipe (304), and the other end of the oil delivery pipe (304) is connected to the oil spray housing (305) for oil spraying. The housing (305) is fixedly installed on the top of the reducer (202), and the bottom of the oil injection housing (305) is uniformly provided with oil injection heads, and the oil injection heads are located above the gears inside the reducer (202). A driven pulley (303) is fixedly installed on the input shaft of the oil injection housing (305), and the driven pulley (303) is connected to the driving pulley (207) by a belt. When the rotating shaft of the motor (203) rotates clockwise with the inner ring of the one-way bearing (206), the outer ring of the one-way bearing (206) rotates clockwise with the driving pulley (207) and the driven pulley (303), and at this time the oil pump body (301) suction port is in a negative pressure state.

4. The high-efficiency traction device for cable hoisting of arch bridges according to claim 1, characterized in that: The upper end of the transparent tube (4) is provided with a filling port (401), and the upper end of the filling port (401) is rotatably connected to a protective cover plate (402) via a rotating shaft; the upper surface of the protective cover plate (402) has two rectangular openings (403), and each rectangular opening (403) is slidably connected to a buckle (404), and each rectangular opening (403) is equipped with a spring.

5. The high-efficiency traction device for cable hoisting of arch bridges according to claim 4, characterized in that: A snap-fit ​​block (405) is fixedly connected to the oil filler port (401), and a snap-fit ​​notch (406) is provided on the snap-fit ​​block (405).

6. The high-efficiency traction device for cable hoisting of arch bridges according to claim 5, characterized in that: When the protective cover (402) is closed above the oil filler (401), both fasteners (404) engage with the engagement notch (406).

Images