Screw protection device for screw hoist

Abstract

The screw protection device comprises a shell, a lubricating assembly is arranged in an inner cavity of the shell and comprises a liquid storage box, a sealing cover is detachably installed at the top of a liquid inlet pipe, a cylindrical pipe is fixedly installed at the top of the liquid storage box, one end of an electric push rod is fixedly connected with a first piston, and the other end of the electric push rod is fixedly connected with a second piston. A water pipe is fixedly installed on the inner wall of the flow guide pipe, a groove is formed in the top face of a second bevel gear, a first piston is lifted to the top through a lubricating assembly and an electric push rod, air is sucked into a cylindrical pipe, lubricating oil is poured into a liquid storage box from a liquid inlet pipe, the liquid inlet pipe is sealed through a sealing cover, and the push rod drives the first piston to move downwards; air in the cylindrical pipe is squeezed into the inner cavity of the liquid storage box, lubricating liquid is squeezed into the water pipe, the lubricating liquid flows through the flow guide pipe and reaches the groove, and by means of the structure, abrasion of the threaded rod is reduced, friction force between the threaded rod and the rotating wheel is reduced, more energy consumption needed when a gate is opened and closed is avoided, and the flexibility of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection devices, and more specifically, to a screw protection device for a screw hoist. Background Technique

[0002] A screw hoist is a device used to open and close gates, and is commonly used in places such as reservoirs and hydropower stations. A traditional screw hoist consists of components such as a housing, a driving device, a rotating wheel, and a threaded rod. The driving device drives the rotating wheel to rotate, and one end of the threaded rod is connected to the gate. Under the structural limitation of the gate, the gate can only move up and down along with the threaded rod. By the threaded connection between the threaded rod and the rotating wheel, the threaded rod is driven to move up and down to achieve the lifting of the gate. However, the threaded rod is worn after long-term use, resulting in an increase in friction. When it is necessary to open and close the gate, more energy consumption is required, which to a certain extent affects the service life of the hoist. In order to solve the deficiencies of the existing technology, we propose a screw protection device for a screw hoist. Content of the Utility Model

[0003] In order to overcome the above-mentioned defects of the existing technology, the utility model provides a screw protection device for a screw hoist to solve the problems that the threaded rod is worn after long-term use, resulting in an increase in friction, more energy consumption is required when it is necessary to open and close the gate, and to a certain extent affects the service life of the hoist.

[0004] To solve the above technical problems, the utility model provides the following technical solutions: A screw protection device for a screw hoist, including a housing, a motor is arranged on one side of the housing, one end of the rotating shaft of the motor is fixedly connected with a bevel gear one, the outer edge of the bevel gear one is engaged with a bevel gear two, the bottom surface of the bevel gear two is fixedly connected with a rotating wheel, the rotating wheel is rotationally connected with the housing, a threaded rod is arranged on one side of the motor, a lubrication assembly is arranged in the inner cavity of the housing, and an anti-rust assembly is arranged on one side of the threaded rod;

[0005] The lubrication assembly includes a liquid storage box, the liquid storage box is fixedly installed on the bottom surface of the inner cavity of the housing, the top surface of the liquid storage box is fixedly connected with a liquid inlet pipe, a sealing cover is detachably installed at the top of the liquid inlet pipe, a cylindrical pipe is fixedly installed at the top of the liquid storage box and the cylindrical pipe is located on one side of the liquid inlet pipe, an electric push rod is fixedly installed on the inner wall of the cylindrical pipe, one end of the push rod of the electric push rod is fixedly connected with a piston one, a diversion pipe is fixedly installed on the outer surface of one side of the liquid storage box, a water pipe is fixedly installed on the inner wall of the diversion pipe, and a groove is opened on the top surface of the bevel gear two.

[0006] Wherein, the inner cavity of the liquid storage box is used for storing lubricating liquid, the diversion pipe is communicated with the inner cavity of the liquid storage box through the water pipe, and the diversion pipe is located above the groove.

[0007] Wherein, the threaded rod is in threaded connection with the inner wall of the rotating wheel, the bottom end of the threaded rod is used to connect the gate, and the rotating wheel is used to drive the threaded rod to move up and down.

[0008] Wherein, the rust prevention component includes a glass tube, the glass tube is fixedly installed on the top surface of the second bevel gear, a piston rod is slidably connected to the inner wall of the glass tube, the top end of the piston rod is fixedly connected to a first support, and a plurality of sponge strips are fixedly connected to the bottom of the first support. A second support is fixedly installed on the outer wall of the glass tube, a spring is fixedly connected to the top surface of the first support, and the end of the spring away from the first support is fixedly connected to the second support.

[0009] Wherein, mercury is placed in the inner cavity of the glass tube.

[0010] Wherein, a plurality of through holes are formed in the housing, the second bevel gear and the rotating wheel near the threaded rod, the number of through holes is the same as the number of sponge strips, and the plurality of sponge strips respectively penetrate through the housing, the second bevel gear and the rotating wheel through the plurality of through holes.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] With the lubrication component of the present utility model, including a liquid storage box, the control electric push rod raises the first piston to the top, sucks air into the cylindrical tube, removes the sealing cover, pours lubricating oil into the liquid storage box from the liquid inlet pipe, and seals the liquid inlet pipe with the sealing cover. At this time, start the electric push rod to make the push rod drive the first piston to move downward, squeeze the air in the cylindrical tube into the inner cavity of the liquid storage box, and squeeze the lubricating liquid into the water pipe, so that the lubricating liquid flows through the diversion pipe to the groove. When the user starts the motor to make the rotating wheel drive the threaded rod to move up and down, it will further lubricate more areas of the threaded rod. With the above structure, by starting the electric push rod, the lubricating liquid can be squeezed into the groove at the top of the second bevel gear, the central threaded rod can be lubricated, the wear of the threaded rod is reduced, the friction between the threaded rod and the rotating wheel is reduced, the need for more energy consumption when opening and closing the gate is avoided, the service life of the hoist is prolonged, and the flexibility of the device is improved;

[0013] The utility model adopts an anti-rust component, including a sponge strip. When the temperature is low, the volume of mercury in the glass tube is small. At this time, the spring and the piston rod drive the first bracket and multiple sponge strips to move downward, so that the multiple sponge strips enter the through holes opened in the second bevel gear and the first bracket, and absorb the moisture between the second bevel gear, the rotating wheel and the threaded rod. When the temperature rises, the piston rod drives the first bracket and multiple sponge strips to rise, and a section of the multiple sponge strips that absorbs moisture is exposed to the air and volatilizes the moisture. With the above structure, through the change of temperature, the piston rod and the spring drive the multiple sponge strips to rise and fall, which can absorb the moisture between the second bevel gear, the rotating wheel and the threaded rod, and can also automatically expose the sponge body to the air to volatilize the moisture, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is a schematic diagram of the structure of the lubricating component of the utility model;

[0016] Figure 3 is a schematic diagram of the dissected structure of the liquid storage box of the utility model;

[0017] Figure 4 is a schematic diagram of the structure of the anti-rust component of the utility model;

[0018] Figure 5 is a schematic diagram of the dissected structure of the glass tube of the utility model.

[0019] [Reference Numerals]

[0020] 1. Housing; 2. Motor; 3. Threaded rod; 4. Lubricating component; 5. Anti-rust component; 21. First bevel gear; 22. Second bevel gear; 23. Rotating wheel; 41. Liquid storage box; 42. Liquid inlet pipe; 43. Sealing cover; 44. Cylindrical pipe; 45. Electric push rod; 46. First piston; 47. Diversion pipe; 48. Water pipe; 49. Groove; 51. Glass tube; 52. Piston rod; 53. First bracket; 54. Sponge strip; 55. Second bracket; 56. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] As shown in the attached Figure 1 to the attached Figure 5An embodiment of the utility model provides a screw protection device for a screw hoist, which includes a housing 1. A motor 2 is arranged on one side of the housing 1. One end of the rotating shaft of the motor 2 is fixedly connected with a first bevel gear 21. The outer edge of the first bevel gear 21 is engaged with a second bevel gear 22. The bottom surface of the second bevel gear 22 is fixedly connected with a rotating wheel 23. The rotating wheel 23 is rotatably connected with the housing 1. A threaded rod 3 is arranged on one side of the motor 2. A lubrication component 4 is arranged in the inner cavity of the housing 1. An anti-rust component 5 is arranged on one side of the threaded rod 3;

[0023] The lubrication component 4 includes a liquid storage box 41. The liquid storage box 41 is fixedly installed on the bottom surface of the inner cavity of the housing 1. The top surface of the liquid storage box 41 is fixedly connected with a liquid inlet pipe 42. A sealing cover 43 is detachably installed at the top of the liquid inlet pipe 42. A cylindrical pipe 44 is fixedly installed on the top of the liquid storage box 41, and the cylindrical pipe 44 is located on one side of the liquid inlet pipe 42. An electric push rod 45 is fixedly installed on the inner wall of the cylindrical pipe 44. One end of the push rod of the electric push rod 45 is fixedly connected with a first piston 46. A diversion pipe 47 is fixedly installed on the outer surface of one side of the liquid storage box 41. A water pipe 48 is fixedly installed on the inner wall of the diversion pipe 47. A groove 49 is opened on the top surface of the second bevel gear 22.

[0024] Among them, the inner cavity of the liquid storage box 41 is used for storing lubricating liquid. The diversion pipe 47 is communicated with the inner cavity of the liquid storage box 41 through the water pipe 48. The diversion pipe 47 is located above the groove 49;

[0025] By pouring lubricating liquid from the liquid inlet pipe 42 and sealing the liquid inlet pipe 42 with the sealing cover 43, at this time, when the electric push rod 45 is started, the first piston 46 can be made to push the air in the cylindrical pipe 44, squeeze the lubricating liquid in the liquid storage box 41 into the water pipe 48, and then flow from the diversion pipe 47 into the groove 49 to lubricate the surface of the threaded rod 3.

[0026] Among them, the threaded rod 3 is threadedly connected with the inner wall of the rotating wheel 23. The bottom end of the threaded rod 3 is used for connecting the gate, and the rotating wheel 23 is used for driving the threaded rod 3 to move up and down;

[0027] By driving the rotating wheel 23 to rotate through the motor 2 and making the rotating wheel 23 drive the threaded rod 3 to move up and down, the lubricating oil in the groove 49 can be used to lubricate more areas of the threaded rod 3.

[0028] Among them, the anti-rust component 5 includes a glass tube 51. The glass tube 51 is fixedly installed on the top surface of the second bevel gear 22. A piston rod 52 is slidably connected to the inner wall of the glass tube 51. The top end of the piston rod 52 is fixedly connected with a first bracket 53. A plurality of sponge strips 54 are fixedly connected to the bottom of the first bracket 53. A second bracket 55 is fixedly installed on the outer wall of the glass tube 51. A spring 56 is fixedly connected to the top surface of the first bracket 53. One end of the spring 56 away from the first bracket 53 is fixedly connected with the second bracket 55.

[0029] Among them, mercury is placed in the inner cavity of the glass tube 51;

[0030] Through thermal expansion and contraction, the volume of the mercury in the glass tube 51 can be changed, thereby driving the piston rod 52 to move up and down.

[0031] Among them, a plurality of through holes are provided near the threaded rod 3 on the housing 1, the second bevel gear 22 and the rotating wheel 23. The number of through holes is the same as the number of sponge strips 54, and the plurality of sponge strips 54 respectively penetrate through the housing 1, the second bevel gear 22 and the rotating wheel 23 through the plurality of through holes;

[0032] When the temperature rises, the mercury in the glass tube 51 expands, causing the piston rod 52 to push the first bracket 53 upward. At this time, the sponge strip 54 originally located in the through hole is exposed to the air and volatilizes water. When the temperature drops, the piston rod 52 also drops accordingly. Under the combined action of the spring 56, the first bracket 53 and the plurality of sponge strips 54 move downward, absorbing the moisture near the threaded rod 3 to prevent the threaded rod 3 from rusting due to dampness.

[0033] The working process of the present utility model is as follows:

[0034] First, control the electric push rod 45 to raise the first piston 46 to the top, inhale air into the cylindrical tube 44, remove the sealing cap 43, pour lubricating oil into the liquid storage box 41 from the liquid inlet pipe 42, and seal the liquid inlet pipe 42 with the sealing cap 43. At this time, start the electric push rod 45 to drive the push rod to drive the first piston 46 to move downward, squeeze the air in the cylindrical tube 44 into the inner cavity of the liquid storage box 41, and squeeze the lubricating liquid into the water pipe 48, so that the lubricating liquid flows through the diversion pipe 47 to reach the groove 49. When the user starts the motor 2, the rotating wheel 23 drives the threaded rod 3 to move up and down, further lubricating more areas of the threaded rod 3. When the temperature is low, the volume of the mercury in the glass tube 51 is small. At this time, the spring 56 and the piston rod 52 drive the first bracket 53 and the plurality of sponge strips 54 to move downward, so that the plurality of sponge strips 54 enter the through holes provided on the second bevel gear 22 and the first bracket 53, and absorb the moisture between the second bevel gear 22, the rotating wheel 23 and the threaded rod 3. When the temperature rises, the piston rod 52 drives the first bracket 53 and the plurality of sponge strips 54 to rise, and the section of the plurality of sponge strips 54 that absorbs moisture is exposed to the air and volatilizes water.

[0035] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0036] Secondly: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0037] Finally: The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A screw protection device for a screw hoist, comprising a housing (1), characterized in that, On one side of the housing (1), there is a motor (2). One end of the rotating shaft of the motor (2) is fixedly connected with a first bevel gear (21). The outer edge of the first bevel gear (21) meshes with a second bevel gear (22). The bottom surface of the second bevel gear (22) is fixedly connected with a rotating wheel (23). The rotating wheel (23) is rotationally connected to the housing (1). On one side of the motor (2), there is a threaded rod (3). Inside the housing (1), there is a lubrication component (4). On one side of the threaded rod (3), there is an anti-rust component (5). The lubrication component (4) includes a liquid storage box (41). The liquid storage box (41) is fixedly installed on the bottom surface of the inner cavity of the housing (1). The top surface of the liquid storage box (41) is fixedly connected with a liquid inlet pipe (42). The top of the liquid inlet pipe (42) is detachably installed with a sealing cover (43). The top of the liquid storage box (41) is fixedly installed with a cylindrical pipe (44), and the cylindrical pipe (44) is located on one side of the liquid inlet pipe (42). Inside the inner wall of the cylindrical pipe (44), there is an electric push rod (45). One end of the push rod of the electric push rod (45) is fixedly connected with a first piston (46). On the outer surface of one side of the liquid storage box (41), there is a diversion pipe (47). Inside the inner wall of the diversion pipe (47), there is a water pipe (48). On the top surface of the second bevel gear (22), there is a groove (49).

2. The screw protection device for the screw hoist according to claim 1, characterized in that, The inner cavity of the liquid storage box (41) is used for storing lubricating liquid. The diversion pipe (47) is communicated with the inner cavity of the liquid storage box (41) through the water pipe (48). The diversion pipe (47) is located above the groove (49).

3. The screw protection device for the screw hoist according to claim 1, characterized in that, The threaded rod (3) is threadedly connected to the inner wall of the rotating wheel (23). The bottom end of the threaded rod (3) is used to connect a gate. The rotating wheel (23) is used to drive the threaded rod (3) to move up and down.

4. The screw protection device for the screw hoist according to claim 1, characterized in that, The anti-rust component (5) includes a glass tube (51). The glass tube (51) is fixedly installed on the top surface of the second bevel gear (22). Inside the inner wall of the glass tube (51), there is a piston rod (52) slidingly connected. The top end of the piston rod (52) is fixedly connected with a first bracket (53). The bottom of the first bracket (53) is fixedly connected with a plurality of sponge strips (54). On the outer wall of the glass tube (51), there is a second bracket (55). The top surface of the first bracket (53) is fixedly connected with a spring (56). One end of the spring (56) away from the first bracket (53) is fixedly connected with the second bracket (55).

5. The screw protection device for a screw hoist according to claim 4, characterized in that, Mercury is placed inside the inner cavity of the glass tube (51).

6. The screw protection device for the screw hoist according to claim 4, characterized in that, At the position close to the threaded rod (3) on the housing (1), the second bevel gear (22) and the rotating wheel (23), there are a plurality of through holes. The number of through holes is the same as the number of sponge strips (54), and the plurality of sponge strips (54) respectively penetrate through the housing (1), the second bevel gear (22) and the rotating wheel (23) through the plurality of through holes.

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