Protection device of gate engineering hoist

Abstract

The utility model relates to the technical field of hoists, and discloses a protection device of a sluice engineering hoist, which comprises a shell, a central shaft is rotatably mounted in the shell, the lower end of the central shaft penetrates through the bottom surface of the shell to be fixedly connected with a screw column, and a central gear is fixedly sleeved at the outer circle of the central shaft. A motor box is arranged on the outer side face of the shell, the output end of a motor in the motor box extends into the shell and is fixedly connected with the driving belt wheel through a rotating shaft, a high-speed rotating shaft is rotationally installed in the shell through a connecting base, and a hollow shaft is fixedly spliced to the upper end of the high-speed rotating shaft. When the high-speed rotating shaft drives the hollow shaft to rotate at a high speed, centrifugal force is generated, gear lubricating oil attached to the lubricating oil adsorption rods is dispersed outwards through the multiple sets of miniature through holes, abrasion between machines is reduced, the lubricating oil adsorption rods are convenient to take, place and replace by opening the movable cover, and the effect that a shell mechanical structure is smooth enough during operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoists, in particular to a protective device for a hoist of a sluice engineering. Background Art

[0002] The gate hoist is a mechanical device used to control the opening and closing of gates in various large-scale water supply and drainage, water conservancy and hydropower projects. It can be used to control the lifting and lowering of various large and medium-sized cast iron gates and steel gates to achieve the functions of opening and closing. There are many types of gate hoists, including hydraulic gate hoists, winch gate hoists, door machines, handwheel gate hoists, hand-operated gate hoists, hand-cranked gate hoists, screw gate hoists, double-hanging gate hoists, etc.

[0003] After searching, the authorization announcement number CN212742438U discloses a protective device for a sluice engineering hoist, which belongs to the technical field of sluice hoists and is characterized in that: it includes a motor, a transmission mechanism and a limit mechanism installed on the outer wall of a shell; the transmission mechanism includes a pulley, a belt and an end gear, the pulley and the motor are connected by an output shaft, the two pulleys are connected by belt transmission, the belt is connected to the end gear, a torque sensor is fixedly connected to the surface of the output shaft, the end gear is meshed with the transmission gear, the transmission gear is fixedly connected to the middle of the rotating shaft, the transmission gear is meshed with the adjusting gear, the adjusting gear is rotatably connected to the inside of the bearing, and the bearing is connected to the inner wall of the shell through an electric push rod; the limit mechanism includes a fixed gear, a screw, a round shaft and a limit plate, the fixed gear is connected to the top of the screw, the end of the screw located at the top of the shell is fixedly connected with a round shaft, the limit plate is fixedly connected to the top surface of the shell, the side end of the limit plate is threadedly connected to the bolt, and the inner wall of the limit plate is fixedly connected to the block through a spring.

[0004] In the above technical solution: there are many mechanical transmission structures in the gate hoist. After long-term operation, the mechanical structures wear against each other and generate heat. Not only will the temperature in the gate hoist increase, but the wear between the mechanical parts will also increase. In the prior art, lubricating oil needs to be added to the mechanical parts in the gate hoist regularly to reduce the wear between the mechanical parts. However, the casing needs to be disassembled for maintenance, which is a cumbersome process.

[0005] Therefore, we propose a protective device for the hoist of a sluice project. Utility Model Content

[0006] The utility model mainly solves the above technical problems and provides a protective device for a hoist of a sluice engineering.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a protective device for a water gate engineering hoist, comprising a shell, a central shaft is rotatably installed inside the shell, a handwheel is provided on the top surface of the shell, the lower end of the central shaft passes through the bottom surface of the shell and is fixedly connected to a screw column, a central gear is fixedly sleeved on the outer circle of the central shaft, a motor box is provided on the outer side surface of the shell, the output end of the motor in the motor box extends into the shell and is fixedly connected to the driving pulley through a rotating shaft, a linkage pulley is movably installed inside the shell through the rotating shaft, the driving pulley and the linkage pulley are connected through a belt transmission, an end gear is provided on the outer side surface of the linkage pulley, and the end gear is meshed with the central gear, the driving pulley is controlled to rotate by starting the motor box, and the driving pulley drives the central gear to rotate through the linkage pulley and the end gear, so that the central gear drives the central shaft to rotate;

[0008] A high-speed rotating shaft is rotatably mounted inside the housing through a connecting seat, a hollow shaft is fixedly spliced ​​on the upper end of the high-speed rotating shaft, a connecting sleeve is fixedly mounted on the top surface of the housing, a speed gear is fixedly mounted on the outer circumference of the high-speed rotating shaft, and the speed gear is meshed and connected with the central gear;

[0009] The outer side surface of the hollow shaft is penetrated by a plurality of groups of micro through holes;

[0010] A lubricating oil adsorption rod is arranged inside the hollow shaft and gear lubricating oil is adsorbed on the lubricating oil adsorption rod.

[0011] Preferably, one end of the hollow shaft away from the high-speed rotating shaft is rotatably connected to a connecting sleeve, and a movable cover is provided at the upper end of the connecting sleeve.

[0012] Preferably, a torque sensor is provided on the output shaft of the motor in the motor box.

[0013] Beneficial Effects

[0014] The utility model provides a protective device for a sluice gate hoist, which has the following beneficial effects:

[0015] The protective device of the gate opening and closing machine of the sluice project is that the center gear drives the speed gear to rotate multiple circles when it rotates one circle, so that the speed gear drives the high-speed shaft to rotate at high speed. The high-speed shaft drives the hollow shaft to rotate at high speed to generate centrifugal force, so that the gear lubricating oil attached to the lubricating oil adsorption rod is dispersed outward through multiple groups of micro through holes, so as to facilitate the lubrication of the mechanical structure of the shell and reduce the wear between the machines. By opening the movable cover, it is convenient to take out and replace the lubricating oil adsorption rod, so as to achieve the effect of making the mechanical structure of the shell smooth enough during operation.

[0016] The protective device of the gate opening and closing machine of the sluice project monitors the speed of the motor in the motor box through the torque sensor, thereby preventing the motor in the motor box from overloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall planar structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the high-speed rotating shaft of the utility model.

[0022] Legend:

[0023] 1. Shell; 2. Center shaft; 3. Handwheel; 4. Screw column; 5. Center gear; 6. Motor box; 8. Driving pulley; 9. Linkage pulley; 10. End gear; 11. Torque sensor; 12. High-speed shaft; 13. Connecting seat; 14. Hollow shaft; 15. Speed ​​gear; 16. Micro through hole; 17. Connecting sleeve; 18. Movable cover; 19. Lubricating oil adsorption rod. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment: A protective device for a sluice gate hoist, such as Figure 1-Figure 2As shown, it includes a shell 1, a central shaft 2 is rotatably installed inside the shell 1, a handwheel 3 is provided on the top surface of the shell 1, the lower end of the central shaft 2 passes through the bottom surface of the shell 1 and is fixedly connected to the screw column 4, a central gear 5 is fixedly sleeved on the outer circle of the central shaft 2, a motor box 6 is provided on the outer side of the shell 1, the output end of the motor in the motor box 6 extends into the shell 1 and is fixedly connected to the driving pulley 8 through a rotating shaft, a linkage pulley 9 is movably installed inside the shell 1 through the rotating shaft, the driving pulley 8 and the linkage pulley 9 are connected through a belt transmission, an end gear 10 is provided on the outer side of the linkage pulley 9, and the end gear 10 is meshed with the central gear 5, the driving pulley 8 is controlled to rotate by starting the motor box 6, the driving pulley 8 drives the central gear 5 to rotate through the linkage pulley 9 and the end gear 10, so that the central gear 5 drives the central shaft 2 to rotate, and a torque sensor 11 is provided on the output shaft of the motor in the motor box 6, and the torque sensor 11 is used to monitor the number of revolutions of the motor in the motor box 6 to avoid overloading of the motor in the motor box 6;

[0026] like Figure 3 As shown, a high-speed rotating shaft 12 is rotatably mounted inside the housing 1 through a connecting seat 13, a hollow shaft 14 is fixedly spliced ​​on the upper end of the high-speed rotating shaft 12, a connecting sleeve 17 is fixedly mounted on the top surface of the housing 1, and one end of the hollow shaft 14 away from the high-speed rotating shaft 12 is rotatably connected to the connecting sleeve 17, a plurality of groups of micro through holes 16 are penetrated through the outer side surface of the hollow shaft 14, a movable cover 18 is provided on the upper end of the connecting sleeve 17, a lubricating oil adsorption rod 19 is provided inside the hollow shaft 14, and a large amount of gear lubricating oil is adsorbed on the lubricating oil adsorption rod 19, and a speed change gear 15 is fixedly mounted on the outer circumference of the high-speed rotating shaft 12 The speed gear 15 is meshed with the center gear 5. When the center gear 5 rotates one circle, it drives the speed gear 15 to rotate multiple circles, so that the speed gear 15 drives the high-speed shaft 12 to rotate at a high speed. When the high-speed shaft 12 drives the hollow shaft 14 to rotate at a high speed, centrifugal force is generated, so that the gear lubricating oil attached to the lubricating oil adsorption rod 19 is dispersed outward through multiple groups of micro through holes 16, so as to facilitate the lubrication of the mechanical structure of the shell 1 and reduce the wear between the machines. By opening the movable cover 18, it is convenient to take out and replace the lubricating oil adsorption rod 19, so that the mechanical structure of the shell 1 is smooth enough during operation.

[0027] The working principle of this utility model:

[0028] When the central gear 5 rotates one circle, it drives the speed gear 15 to rotate multiple circles, so that the speed gear 15 drives the high-speed rotating shaft 12 to rotate at a high speed. When the high-speed rotating shaft 12 drives the hollow shaft 14 to rotate at a high speed, centrifugal force is generated, so that the gear lubricating oil attached to the lubricating oil adsorption rod 19 is dispersed outward through multiple groups of micro through holes 16, thereby facilitating the lubrication of the mechanical structure of the shell 1 and reducing the wear between the machines. By opening the movable cover 18, it is convenient to take out and replace the lubricating oil adsorption rod 19, so that the mechanical structure of the shell 1 is smooth enough during operation.

[0029] The torque sensor 11 monitors the number of revolutions of the motor in the motor box 6 to avoid overloading of the motor in the motor box 6 .

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective device for a gate hoist of a sluice engineering project, comprising a housing (1), a central shaft (2) rotatably mounted inside the housing (1), a hand wheel (3) provided on the top surface of the housing (1), a lower end of the central shaft (2) passing through the bottom surface of the housing (1) and fixedly connected to a screw column (4), Features: A central gear (5) is fixedly sleeved on the outer circumference of the central shaft (2); a motor box (6) is provided on the outer side of the housing (1); the output end of the motor in the motor box (6) extends into the housing (1) and is fixedly connected to the driving pulley (8) through a rotating shaft; a linkage pulley (9) is movably installed inside the housing (1) through the rotating shaft; the driving pulley (8) and the linkage pulley (9) are connected through a belt transmission; and an end gear (10) is provided on the outer side of the linkage pulley (9); A high-speed rotating shaft (12) is rotatably mounted inside the housing (1) via a connecting seat (13); a hollow shaft (14) is fixedly spliced ​​to the upper end of the high-speed rotating shaft (12); a connecting sleeve (17) is fixedly mounted on the top surface of the housing (1); a speed change gear (15) is fixedly mounted on the outer circumference of the high-speed rotating shaft (12); and the speed change gear (15) is meshingly connected with the central gear (5); The outer side surface of the hollow shaft (14) is penetrated by a plurality of groups of micro through holes (16); A lubricating oil adsorption rod (19) is arranged inside the hollow shaft (14), and gear lubricating oil is adsorbed on the lubricating oil adsorption rod (19).

2. A protective device for a sluice gate hoist according to claim 1, Features: One end of the hollow shaft (14) away from the high-speed rotating shaft (12) is rotatably connected to a connecting sleeve (17), and a movable cover (18) is provided at the upper end of the connecting sleeve (17).

3. A protective device for a sluice gate hoist according to claim 1, Features: A torque sensor (11) is arranged on the output shaft of the motor in the motor box (6).

4. A protective device for a sluice gate hoist according to claim 1, Features: The end face gear (10) is meshingly connected with the central gear (5).

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