Single-stage worm gear reducer

Abstract

The utility model discloses a single-stage worm gear reducer, and relates to the technical field of worm gear reducers. Comprising a speed reducer body and a protection box, a temporary storage groove is formed in the speed reducer body, a three-way valve is arranged at the bottom of the temporary storage groove, a hand wheel is arranged on the front side of the three-way valve, the protection box is fixedly arranged on the outer side of the speed reducer body, and the protection box covers the outer side of the hand wheel; the front face of the protection box is rotationally connected with a protection door through hinges, and a door handle and a limiting plate are fixedly arranged on the outer side of the protection door. By arranging the protection box and the protection door, after the hand wheel is operated, the protection door can be closed, and at the moment, the protection box and the protection door jointly place the hand wheel in a closed and independent space. Therefore, external personnel or objects can be prevented from touching and colliding the hand wheel by mistake, and misoperation of the three-way valve caused by accidental rotation of the hand wheel is avoided. Therefore, the hand wheel and the three-way valve are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear reducers, in particular to a single-stage worm gear reducer. Background Art

[0002] The single-stage worm gear reducer is an important reduction gear device. Its operating principle is to achieve speed reduction by utilizing the meshing relationship between a helical worm and a worm wheel. When the worm wheel is used as the input, the meshing torque between the worm and the worm wheel achieves a change in rotational direction, speed reduction, and power transmission. Conversely, when the worm is used as the input, the worm wheel acts as the output to achieve corresponding speed reduction.

[0003] Chinese utility model patent CN221482600U discloses a worm gear reducer with a high-load-bearing component, comprising a housing, a worm gear assembly for reducing speed connected to the upper side of the housing, an adjustment member for improving the load-bearing capacity of the reducer provided on the lower side of the housing, a recovery member provided in the housing, the recovery member consisting of a filter plate and an anti-blocking member for preventing the filter plate from blocking, the filter plate being fixedly connected to the inner side of the housing, the anti-blocking member comprising a motor, an auger, a recovery box, a fan blade, and a connection frame. The utility model relates to the technical field of high-load-bearing worm gear reducers. In the worm gear reducer with a high-load-bearing component, during the circulation of the lubricating fluid, the filter plate filters out larger particles of impurities in the lubricating fluid, and during the interval when the worm gear assembly stops operating, the motor drives the auger to rotate, so that larger particles of impurities retained on the filter plate are introduced into the recovery box through the conveying trough, thereby reducing the subsequent processing steps for the impurities retained on the filter plate.

[0004] In order to switch between extracting lubricating oil from the temporary tank and extracting lubricating oil from the storage tank when the circulating pump is working, the above-mentioned worm gear reducer is installed with a three-way valve, and a handwheel is provided on the front side of the three-way valve. However, the above-mentioned worm gear reducer does not have the function of protecting the handwheel. Since the handwheel is always exposed to the outside world, if people or objects outside accidentally touch or collide with the handwheel, it will cause accidental rotation, which will lead to malfunction of the three-way valve. Utility Model Content

[0005] The utility model provides a single-stage worm gear reducer to solve the problems in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a single-stage worm gear reducer, comprising a reducer body and a protective box, wherein a temporary storage tank is provided inside the reducer body, a three-way valve is provided at the bottom of the temporary storage tank, a handwheel is provided on the front side of the three-way valve, a protective box is fixedly provided on the outside of the reducer body, the protective box cover is provided on the outside of the handwheel, a protective door is rotatably connected to the front of the protective box via a hinge, and a door handle and a limit plate are fixedly provided on the outside of the protective door;

[0007] A fixing plate is provided directly above the limiting plate, and the connection between the fixing plate and the protective box is a fixed connection. A threaded hole is provided in the middle of the fixing plate, and a bolt is movably provided on the inner wall of the threaded hole. The connection between the bolt and the fixing plate is a threaded connection, and one end of the bolt is located in the limiting hole of the limiting plate. A warning sign is movably provided on the outside of the reducer body.

[0008] Furthermore, a filter plate is provided on the top of the temporary storage tank.

[0009] Furthermore, a conduit is fixedly provided on one side of the three-way valve, and one end of the conduit passes through the top of the storage tank and extends to the interior of the storage tank.

[0010] Furthermore, a circulation pump is fixedly provided at the bottom of the three-way valve, a circulation pipe is fixedly provided on one side of the circulation pump, and one end of the circulation pipe passes through the top of the reducer body and extends to the interior of the reducer body.

[0011] Furthermore, the connection relationship between the limiting plate and the bolt is a movable plug-in.

[0012] Furthermore, the warning sign and the reducer body are movably connected via screws.

[0013] Compared with the prior art, the present invention provides a single-stage worm gear reducer with the following beneficial effects:

[0014] 1. This single-stage worm gear reducer features a protective box and door. After operating the handwheel, the door can be closed. Together, the box and door enclose the handwheel in a closed, isolated space. This prevents outsiders or objects from accidentally touching or colliding with the handwheel, which could lead to malfunction of the three-way valve due to accidental rotation. Thus, both the handwheel and the three-way valve are protected.

[0015] 2. The single-stage worm gear reducer is provided with a bolt, which is rotated by turning the bolt. When one end of the bolt enters the limiting hole on the limiting plate, the protective door can be restricted to prevent the protective door from being accidentally opened.

[0016] 3. For this single-stage worm gear reducer, by setting a warning sign, the staff can mark some key information on the warning sign according to needs, such as reminding the operator to close the protective door after operating the handwheel, so as to give clear instructions in text form. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a front view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the external structure of the protective box of the present utility model.

[0020] In the figure: 1. Reducer body; 101. Temporary storage tank; 102. Filter plate; 2. Three-way valve; 201. Conduit; 202. Storage tank; 3. Circulation pump; 301. Circulation pipe; 4. Handwheel; 5. Protective box; 501. Hinge; 502. Protective door; 503. Door handle; 6. Limit plate; 7. Fixing plate; 8. Bolt; 9. Warning sign. DETAILED DESCRIPTION

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

[0022] See also Figure 1-3 The present invention discloses a single-stage worm gear reducer, comprising a reducer body 1 and a protective case 5. A worm gear is disposed within the reducer body 1, thereby achieving a single-stage function. A temporary storage tank 101 is provided within the reducer body 1, and a three-way valve 2 is disposed at the bottom of the temporary storage tank 101. A three-way valve is a basic fluid control valve, typically consisting of a valve body, a valve core, a valve seat, a piston, and a spring. It has three connection ports, one of which is an inlet and the other two are outlets, enabling flow control between the two outlets. Three-way valves are generally classified into various types, such as straight-through, angle, T-type, and L-type, based on their structure and operating principle. In actual engineering, different types are used in different control scenarios. A handwheel 4 is provided on the front side of the three-way valve 2. A protective box 5 is fixedly provided on the outside of the reducer body 1. The protective box 5 is covered on the outside of the handwheel 4. The front of the protective box 5 is rotatably connected to a protective door 502 through a hinge 501. A door handle 503 and a limit plate 6 are fixed on the outside of the protective door 502.

[0023] A fixing plate 7 is provided directly above the limiting plate 6, and the connection between the fixing plate 7 and the protective box 5 is a fixed connection. A threaded hole is provided in the middle of the fixing plate 7, and a bolt 8 is movably provided on the inner wall of the threaded hole. The connection between the bolt 8 and the fixing plate 7 is a threaded connection, and one end of the bolt 8 is located in the limiting hole of the limiting plate 6. A warning sign 9 is movably provided on the outer side of the reducer body 1.

[0024] Specifically, a filter plate 102 is provided on the top of the temporary storage tank 101 .

[0025] In this embodiment, by providing the filter plate 102 , during the circulation of the lubricating liquid, the filter plate 102 can filter the lubricating liquid and remove larger particles of impurities in the lubricating liquid.

[0026] Specifically, a conduit 201 is fixedly provided on one side of the three-way valve 2 , and one end of the conduit 201 passes through the top of the storage tank 202 and extends to the interior of the storage tank 202 .

[0027] In this embodiment, a storage tank 202 is provided. The storage tank 202 mainly stores lubricating liquid, which can be supplied to the worm gear assembly, thereby maintaining the normal operation of the reducer and extending its service life.

[0028] Specifically, a circulation pump 3 is fixedly provided at the bottom of the three-way valve 2 , a circulation pipe 301 is fixedly provided on one side of the circulation pump 3 , and one end of the circulation pipe 301 passes through the top of the reducer body 1 and extends to the interior of the reducer body 1 .

[0029] In this embodiment, a circulating pump 3 is provided, which can extract the lubricating liquid from the storage tank 202 or the temporary storage tank 101. The circulating pump 3 ensures that the worm gear assembly is always fully lubricated during operation by extracting and transporting the lubricating liquid, thereby reducing friction and wear and extending the service life of the equipment.

[0030] Specifically, the connection relationship between the limiting plate 6 and the bolt 8 is a movable plug-in connection.

[0031] In this embodiment, a bolt 8 is provided and rotated by turning the bolt 8. When one end of the bolt 8 is moved out of the limiting hole on the limiting plate 6, the restriction on the protective door 502 can be released, and then the protective door 502 can be opened.

[0032] Specifically, the warning sign 9 is movably connected to the reducer body 1 through screws.

[0033] In this embodiment, by providing screws 901, the fixation of the warning sign 9 can be released by loosening the screws 901, and then the warning sign 9 can be removed, thereby facilitating its maintenance or replacement.

[0034] When in use, the hand wheel 4 is connected to the three-way valve 2. By rotating the hand wheel 4, the switch state of the internal channel of the three-way valve 2 can be changed, thereby realizing the reversal of the three-way valve 2.

[0035] Start the circulation pump 3, which can extract the lubricating liquid from the storage tank 202 or the temporary storage tank 101. The circulation pump 3 ensures that the worm gear assembly is always fully lubricated during operation by extracting and delivering the lubricating liquid.

[0036] After operating the handwheel 4, the protective door 502 can be closed. At this time, the protective box 5 and the protective door 502 together place the handwheel 4 in a closed and independent space. This can prevent outsiders or objects from accidentally touching and colliding with the handwheel 4, thereby preventing the handwheel 4 from being accidentally turned and causing malfunction of the three-way valve 2.

[0037] When restricting the protective door 502 , the bolt 8 is rotated and displaced by screwing it. When one end of the bolt 8 enters the limiting hole on the limiting plate 6 , the protective door 502 can be restricted.

[0038] In summary, the single-stage worm gear reducer is provided with a protective box 5 and a protective door 502. After operating the handwheel 4, the protective door 502 can be closed. At this time, the protective box 5 and the protective door 502 together place the handwheel 4 in a closed and independent space. This can prevent outsiders or objects from accidentally touching and colliding with the handwheel 4, thereby preventing the handwheel 4 from being accidentally rotated and causing malfunction of the three-way valve 2. In this way, the handwheel 4 and the three-way valve 2 are both protected. By providing a bolt 8, the bolt 8 is rotated and displaced by turning the bolt 8. When one end of the bolt 8 enters the limit hole on the limit plate 6, the protective door 502 can be restricted, thereby preventing the protective door 502 from being accidentally opened. By providing a warning sign 9, the staff can mark some key information on the warning sign 9 according to their needs, such as reminding the operator to be sure to close the protective door 502 after operating the handwheel 4, thereby giving clear instructions in text form.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-stage worm gear reducer, comprising a reducer body (1) and a protective box (5), characterized in that: A temporary storage tank (101) is provided inside the reducer body (1), a three-way valve (2) is provided at the bottom of the temporary storage tank (101), a hand wheel (4) is provided on the front side of the three-way valve (2), a protection box (5) is fixedly provided on the outside of the reducer body (1), the protection box (5) is covered on the outside of the hand wheel (4), the front of the protection box (5) is rotatably connected to a protection door (502) via a hinge (501), and a door handle (503) and a limit plate (6) are fixedly provided on the outside of the protection door (502); A fixing plate (7) is provided directly above the limiting plate (6), and the connection relationship between the fixing plate (7) and the protective box (5) is a fixed connection. A threaded hole is provided in the middle of the fixing plate (7), and a bolt (8) is movably provided on the inner wall of the threaded hole. The connection relationship between the bolt (8) and the fixing plate (7) is a threaded connection. One end of the bolt (8) is located in the limiting hole of the limiting plate (6), and a warning sign (9) is movably provided on the outer side of the reducer body (1).

2. A single-stage worm gear reducer according to claim 1, characterized in that: A filter plate (102) is provided on the top of the temporary storage tank (101).

3. The single-stage worm gear reducer according to claim 1, characterized in that: A conduit (201) is fixedly provided on one side of the three-way valve (2), and one end of the conduit (201) passes through the top of the storage tank (202) and extends to the interior of the storage tank (202).

4. The single-stage worm gear reducer according to claim 1, characterized in that: A circulation pump (3) is fixedly provided at the bottom of the three-way valve (2), a circulation pipe (301) is fixedly provided on one side of the circulation pump (3), and one end of the circulation pipe (301) passes through the top of the reducer body (1) and extends to the interior of the reducer body (1).

5. The single-stage worm gear reducer according to claim 1, characterized in that: The connection relationship between the limiting plate (6) and the bolt (8) is a movable plug-in connection.

6. The single-stage worm gear reducer according to claim 1, characterized in that: The warning sign (9) is movably connected to the reducer body (1) via screws.

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