Sealed high-speed gearbox for scrubber

Abstract

The utility model relates to the technical field of high-speed gearboxes, and discloses a sealed high-speed gearbox for a scrubber, which comprises a shell, the outer wall of the left side of the shell is rotatably connected with an input shaft, the outer wall of the right end of the input shaft is fixedly connected with an input bevel gear, and the outer wall of the input bevel gear is meshed with a bevel gear I; a sleeve is fixedly connected to the middle of the first bevel gear, a second bevel gear is fixedly connected to the other end of the sleeve, a rotating column is slidably connected to the inner wall of the sleeve, a tooth groove is formed in the middle of the sleeve, a sliding gear is connected to the outer wall of the tooth groove in a meshed mode, and a control rod is fixedly connected to the middle of the sliding gear. By changing the rotating direction of the output shaft, rotation in different directions is achieved, force is applied to stains from different angles, the cleaning effect is improved, and eccentric wear and shortening of the service life of gears due to long-term one-way stress of the gears in the gear box are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed gear boxes, in particular to a sealed high-speed gear box for a floor scrubber. Background Art

[0002] A floor scrubber is a device specially used for cleaning the floor. It is efficient, convenient and has good cleaning effects. The floor scrubber drives the brush disc to rotate through a motor. The bristles on the brush disc come into contact with the floor and scrub the floor. The floor scrubber is also equipped with a water suction device to suck the wastewater after scrubbing into the sewage tank, thereby cleaning the floor. The floor scrubber can clean the floor quickly, greatly improving cleaning efficiency and saving manpower and time costs. It is suitable for floor cleaning in large places.

[0003] A high-speed gearbox is a transmission device that plays a key role in mechanical equipment. It transmits the high-speed rotation of the power source to the gear set through the input shaft. The gears of different sizes in the gear set mesh with each other, changing the speed of the input shaft according to the gear ratio, and at the same time changing the torque. Finally, the converted speed and torque are transmitted to the working parts through the output shaft to achieve normal operation of the mechanical equipment.

[0004] The high-speed gearbox of the floor scrubber reduces the speed of the motor and increases the torque to achieve cleaning of various floors. The current floor scrubber can only rotate in one direction, which will cause the floor scrubber to have a single cleaning track on the floor, making it difficult to fully cover the entire cleaning area, greatly reducing the overall cleaning effect. The bristles of the floor scrubber may also wear unevenly due to the one-way rotation, and sewage and dust will enter the gap of the drive shaft. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a sealed high-speed gearbox for a floor scrubber, which aims to improve the problem in the prior art that rotation in one direction will cause the floor scrubbing brush to have a single cleaning track on the ground, making it difficult to fully cover the entire cleaning area, greatly reducing the overall cleaning effect. The bristles of the floor scrubbing brush may also wear unevenly due to the unidirectional rotation, and sewage and dust may enter the gap of the drive shaft.

[0006] The transmission gear of the present invention is a gear selected from the group consisting of a gearbox, a gear train, a gearbox, a gearbox, and a gearbox. The gearbox has a first end fixed to the front of the gearbox and a second end to the rear of the gearbox. The gearbox has a first end fixed to the front of the gearbox and a second end to the rear of the gearbox. The gearbox has a first end fixed to the front of the gearbox and a second end to the rear of the gearbox.

[0007] As a further description of the above technical solution:

[0008] The mechanical sealing mechanism includes a static ring and a dynamic ring. The outer wall of the static ring is fixedly connected to the inner wall of the shell. The outer wall of the static ring is engaged with a rubber ring 1. The inner wall of the dynamic ring is provided with an annular groove. The inner wall of the annular groove is engaged with a rubber ring 2. The right end of the dynamic ring is fixedly connected to a spring. The other end of the spring is fixedly connected to a holder. The inner wall of the holder is fixedly connected to the outer wall of the output shaft.

[0009] As a further description of the above technical solution:

[0010] A clamping slot is provided on the top surface of the shell, a turning handle is fixedly connected to the top surface of the control rod, and a clamping column is slidably connected to the turning handle.

[0011] As a further description of the above technical solution:

[0012] The bottom surface of the shell is fixedly connected with a base, and the outer wall of the shell is fixedly connected with a cooling plate.

[0013] As a further description of the above technical solution:

[0014] The top surface of the base is fixedly connected with a reinforcing rib, and the outer wall of the reinforcing rib is fixedly connected to the outer wall of the shell.

[0015] As a further description of the above technical solution:

[0016] A sliding groove is provided on the outer wall of the rotating column, and a sliding bar is fixedly connected to the inner wall of the sleeve.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the shell is fixedly connected with a trapezoidal block, the inner wall of the trapezoidal block is rotatably connected to the outer wall of the output shaft, the outer wall of the trapezoidal block is fixedly connected with a stabilizing seat, and the bottom surface of the stabilizing seat is fixedly connected to the bottom surface of the shell.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the input shaft is rotatably connected to a bearing, and the outer wall of the bearing is fixedly connected to the inner wall of the housing.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, deceleration is achieved through the transmission ratio of large and small gears, and the rotation direction of the output shaft is changed by sliding the bevel gears in different directions, so that rotation in different directions can be achieved, and force can be applied to stains from different angles to improve the cleaning effect. The gears in the gear box will not be unevenly worn due to long-term unidirectional force, which will shorten the service life of the gears.

[0023] 2. In the present invention, double sealing is achieved by sealing the outside with the static ring and sealing the inside with the dynamic ring, which can prevent dust, moisture and impurities from entering the gear box, prevent impurities from mixing with the lubricating oil, reduce the performance of the lubricating oil, aggravate the wear of the gears and bearings, and affect the service life and working reliability of the gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of the sealed high-speed gearbox housing for a floor scrubber proposed in the present invention;

[0025] Figure 2 This is a partial structural diagram of the large gear of the sealed high-speed gearbox for a floor scrubber proposed in the present invention;

[0026] Figure 3 This is a partial structural diagram of the rotating column of the sealed high-speed gearbox for a floor scrubber proposed in the present utility model;

[0027] Figure 4 This is a structural breakdown diagram of the dynamic ring of the sealed high-speed gearbox for a floor scrubber proposed in the utility model;

[0028] Figure 5 This is a top view of the sealed high-speed gearbox housing for a floor scrubber proposed in the present invention.

[0029] Legend:

[0030] 1. Housing; 2. Mechanical seal mechanism; 201. Rubber ring 1; 202. Stationary ring; 203. Rubber ring 2; 204. Annular groove; 205. Dynamic ring; 206. Spring; 207. Socket; 3. Input shaft; 4. Input bevel gear; 5. Bevel gear 1; 6. Sleeve; 7. Tooth groove; 8. Bevel gear 2; 9. Rotating column; 10. Small gear; 11. Large gear; 12. Output shaft; 13. Sliding gear; 14. Control lever; 15. Turning handle; 16. Stabilizing seat; 17. Trapezoidal block; 18. Cooling plate; 19. Base; 20. Reinforcement rib; 21. Bearing; 22. Socket; 23. Socket; 24. Slide; 25. Slide. DETAILED DESCRIPTION

[0031] 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.

[0032] Please see the attached Figure 1 Attachment Figure 2 and attached Figure 3 The utility model provides an embodiment of a sealed high-speed gearbox for a floor scrubber, comprising a housing 1, an input shaft 3 being rotatably connected to the left outer wall of the housing 1, an input bevel gear 4 being fixedly connected to the outer wall of the right end of the input shaft 3, an outer wall of the input bevel gear 4 being meshed with a bevel gear 1 5, a sleeve 6 being fixedly connected in the middle of the bevel gear 1 5, and a bevel gear 2 8 being fixedly connected in the other end of the sleeve 6, a rotating column 9 being slidably connected to the inner wall of the sleeve 6, a tooth groove 7 being provided in the middle part of the sleeve 6, a sliding gear 13 being meshed with the outer wall of the tooth groove 7, a control rod 14 being fixedly connected in the middle part of the sliding gear 13, a bottom surface of the control rod 14 being rotatably connected to the bottom surface of the inner wall of the housing 1, a pinion 10 being fixedly connected to one end of the rotating column 9, a large gear 11 being meshed with the outer wall of the small gear 10, an output shaft 12 being fixedly connected in the middle part of the large gear 11, and a mechanical sealing mechanism 2 being provided on the outer wall of the output shaft 12, which is used for sealing;

[0033] Specifically, the outer shell 1 not only protects the internal gears and the mechanical sealing mechanism 2, but also can withstand certain external shocks and pressures. The input bevel gear 4 is meshed with the bevel gear 1 5 to change the direction of rotation. The design of the sleeve 6 and the rotating column 9 allows the bevel gear 1 5 and the bevel gear 2 8 on the sleeve 6 to slide freely within a certain range, thereby realizing the control of the output direction. The setting of the control lever 14 allows the operator to easily adjust the working state of the gearbox. The meshing connection between the small gear 10 and the large gear 11 ensures the smooth transmission of power and the effect of deceleration and torque increase, so that the output shaft 12 can provide greater driving force. The setting of the mechanical sealing mechanism 2 ensures that the internal lubricating oil of the gearbox will not leak and external pollutants will not enter during long-term operation, thereby ensuring the stability and reliability of the equipment.

[0034] Please see the attached Figure 4 The mechanical sealing mechanism 2 includes a stationary ring 202 and a dynamic ring 205. The outer wall of the stationary ring 202 is fixedly connected to the inner wall of the housing 1. The outer wall of the stationary ring 202 is engaged with a rubber ring 1 201. The inner wall of the dynamic ring 205 is provided with an annular groove 204. The inner wall of the annular groove 204 is engaged with a rubber ring 203. The right end of the dynamic ring 205 is fixedly connected to a spring 206. The other end of the spring 206 is fixedly connected to a holder 207. The inner wall of the holder 207 is fixedly connected to the outer wall of the output shaft 12.

[0035] Specifically, the outer wall portion of the static ring 202 is tightly connected to the inner wall of the housing 1, ensuring a fixed connection between the two. In order to further enhance the sealing effect, the addition of the rubber ring 1 201 not only improves the sealing performance, but also absorbs certain vibrations and impacts, thereby extending the service life. An annular groove 204 is provided on its inner wall portion, and the inner wall of this annular groove 204 is engaged with the rubber ring 203. The function of the rubber ring 203 is similar to that of the rubber ring 1 201, both of which are to improve the sealing effect and absorb vibrations. The right end of the dynamic ring 205 is fixedly connected to a spring 206. The presence of the spring 206 provides a certain elastic force for the dynamic ring 205, enabling it to fit better, thereby ensuring the sealing effect. In order to further fix the spring 206, a holder 207 is fixedly connected to its other end. The design of the holder 207 is not only to fix the spring 206, but also to be connected to the output shaft 12. The inner wall of the holder 207 is tightly combined with the outer wall of the output shaft 12 through a fixed connection, ensuring stability and reliability during operation.

[0036] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 5, a card slot 22 is provided on the top surface of the shell 1, the top surface of the control lever 14 is fixedly connected to the turn handle 15, and a card column 23 is slidably connected to the turn handle 15, the bottom surface of the shell 1 is fixedly connected to the base 19, the outer wall of the shell 1 is fixedly connected to the cooling plate 18, the top surface of the base 19 is fixedly connected to the reinforcing rib 20, the outer wall of the reinforcing rib 20 is fixedly connected to the outer wall of the shell 1, a sliding groove 24 is provided on the outer wall of the rotating column 9, and the inner wall of the sleeve 6 is fixedly connected to the slide bar 25, the inner wall of the shell 1 is fixedly connected to the trapezoidal block 17, the inner wall of the trapezoidal block 17 is rotatably connected to the outer wall of the output shaft 12, the outer wall of the trapezoidal block 17 is fixedly connected to the stable seat 16, the bottom surface of the stable seat 16 is fixedly connected to the bottom surface of the shell 1, the outer wall of the input shaft 3 is rotatably connected to the bearing 21, and the outer wall of the bearing 21 is fixedly connected to the inner wall of the shell 1;

[0037] Specifically, a turning handle 15 is fixedly connected to the top surface of the control rod 14. This turning handle 15 can be used to control the direction of the output shaft 12. A card column 23 is slidably connected to the turning handle 15. The card column 23 can be stuck in the card slot 22 to achieve locking. The base 19 is used to support the entire device to ensure its stability and firmness. A cooling plate 18 is fixedly connected to the top of the shell 1. The function of the cooling plate 18 is to dissipate heat during operation to improve its service life and efficiency. The top surface of the base 19 is fixedly connected with a reinforcing rib 20. The reinforcing rib 20 can increase the strength and stability of the base 19. The outer wall of the reinforcing rib 20 is fixedly connected to the outer wall of the shell 1, which can further enhance the overall structure of the shell 1. The rotating column 9 can slide freely in the sleeve 6, and the outer wall of the input shaft 3 is rotatably connected with a bearing 21. The bearing 21 can reduce friction and improve the flexibility and efficiency of rotation.

[0038] Working principle: power is input from the input shaft 3, driving the input bevel gear 4 to rotate, the input bevel gear 4 drives the bevel gear 1 5 to rotate, the bevel gear 1 5 drives the sleeve 6 to rotate, the sleeve 6 drives the rotating column 9 to rotate, the rotating column 9 drives the small gear 10 to rotate, the small gear 10 drives the large gear 11 to rotate, the large gear 11 drives the output shaft 12 to rotate and output, the large gear 11 is larger than the small gear 10, forming a differential ratio, increasing the torque, when the control lever 14 is rotated, the sliding gear 13 rotates, the tooth groove 7 on the sleeve 6 meshes with the sliding gear 13, the sleeve 6 slides to the right, and the bevel gear 2 8 meshes with the input bevel gear 4 to achieve reverse output, which can achieve rotation in different directions, and can apply force to stains from different angles to improve the cleaning effect. The gears in the gearbox will not be unevenly worn due to long-term one-way force, which will shorten the service life of the gears;

[0039] The outer wall of the static ring 202 is fixed to the inner wall of the outer shell 1, and the rubber ring 1 201 is engaged with the outer wall of the static ring 202 and pressed against the outer wall of the outer shell 1 to achieve static sealing. The holder 207 is fixed on the output shaft 12 and rotates with the output shaft 12. The spring 206 squeezes the dynamic ring 205, and the rubber ring 203 on the inner wall of the dynamic ring 205 holds the output shaft 12 tightly and rotates to achieve dynamic sealing, which can prevent external substances such as dust, moisture, and impurities from entering the gear box. Once these external impurities enter the gear box, they will mix with the lubricating oil, reduce the performance of the lubricating oil, aggravate gear wear, and seriously affect the service life and working reliability of the gear box.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sealed high-speed gearbox for a floor scrubber, comprising a housing (1), characterized in that: The left outer wall of the housing (1) is rotatably connected to an input shaft (3), the right outer wall of the input shaft (3) is fixedly connected to an input bevel gear (4), the outer wall of the input bevel gear (4) is meshedly connected to a bevel gear 1 (5), the middle of the bevel gear 1 (5) is fixedly connected to a sleeve (6), the other end of the sleeve (6) is fixedly connected to a bevel gear 2 (8), the inner wall of the sleeve (6) is slidably connected to a rotating column (9), the middle of the sleeve (6) is provided with a tooth groove (7), the outer wall of the tooth groove (7) is meshedly connected to the bevel gear 1 (5), and the outer wall of the tooth groove (7) is meshedly connected to the bevel gear 2 (8). A sliding gear (13) is provided, wherein the middle portion of the sliding gear (13) is fixedly connected to a control rod (14), the bottom surface of the control rod (14) is rotatably connected to the bottom surface of the inner wall of the housing (1), one end of the rotating column (9) is fixedly connected to a small gear (10), the outer wall of the small gear (10) is meshedly connected to a large gear (11), the middle portion of the large gear (11) is fixedly connected to an output shaft (12), the outer wall of the output shaft (12) is provided with a mechanical sealing mechanism (2), and the mechanical sealing mechanism (2) is used for sealing.

2. The sealed high-speed gearbox for a floor scrubber according to claim 1, characterized in that: The mechanical sealing mechanism (2) comprises a stationary ring (202) and a dynamic ring (205), the outer wall of the stationary ring (202) being fixedly connected to the inner wall of the housing (1), the outer wall of the stationary ring (202) being engaged with a first rubber ring (201), the inner wall of the dynamic ring (205) being provided with an annular groove (204), the inner wall of the annular groove (204) being engaged with a second rubber ring (203), the right end of the dynamic ring (205) being fixedly connected to a spring (206), the other end of the spring (206) being fixedly connected to a holder (207), the inner wall of the holder (207) being fixedly connected to the outer wall of the output shaft (12).

3. The sealed high-speed gearbox for a floor scrubber according to claim 1, characterized in that: A card slot (22) is provided on the top surface of the housing (1), a turning handle (15) is fixedly connected to the top surface of the control rod (14), and a card column (23) is slidably connected to the turning handle (15).

4. The sealed high-speed gearbox for a floor scrubber according to claim 1, characterized in that: The bottom surface of the shell (1) is fixedly connected to a base (19), and the outer wall of the shell (1) is fixedly connected to a cooling plate (18).

5. The sealed high-speed gearbox for a floor scrubber according to claim 4, characterized in that: A reinforcing rib (20) is fixedly connected to the top surface of the base (19), and an outer wall of the reinforcing rib (20) is fixedly connected to the outer wall of the outer shell (1).

6. The sealed high-speed gearbox for a floor scrubber according to claim 1, characterized in that: The outer wall of the rotating column (9) is provided with a sliding groove (24), and the inner wall of the sleeve (6) is fixedly connected with a sliding bar (25).

7. The sealed high-speed gearbox for a floor scrubber according to claim 1, characterized in that: The inner wall of the housing (1) is fixedly connected to a trapezoidal block (17), the inner wall of the trapezoidal block (17) is rotatably connected to the outer wall of the output shaft (12), the outer wall of the trapezoidal block (17) is fixedly connected to a stabilizing seat (16), and the bottom surface of the stabilizing seat (16) is fixedly connected to the bottom surface of the housing (1).

8. The sealed high-speed gearbox for a floor scrubber according to claim 1, characterized in that: The outer wall of the input shaft (3) is rotatably connected to a bearing (21), and the outer wall of the bearing (21) is fixedly connected to the inner wall of the housing (1).

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