Blade transmission mechanism of a cleaning device

Abstract

The present invention discloses a fan blade transmission mechanism of a cleaning device, which relates to the field of cleaning equipment, including a motor fixing seat, in which a double-headed motor and a gear reduction assembly are installed; a gear base is formed on the left side of the motor fixing seat, and a large belt gear is rotatably installed in the gear base, a small belt gear is fixedly installed on the left end of the rotor of the double-headed motor, and a transmission belt is installed between the large belt gear and the small belt gear; a small gear is rotatably installed in the gear base, and the small gear is meshed and installed on the large belt gear, and a fan blade assembly is fixedly installed at the axis center of the small gear, and the fan blade assembly is arranged on the right side of the gear base; the right end of the double-headed motor is connected to a roller brush transmission head through the gear reduction assembly; the present invention uses a single double-headed motor to simultaneously drive the fan blade assembly and the roller brush transmission head. Compared with the prior art, the present invention can effectively save costs and reduce the space occupied by the additional motor structure, making the machine lighter.

Description

Technical Field

[0001] The present invention relates to the field of cleaning equipment, in particular to a fan blade transmission mechanism of a cleaning device. Background Art

[0002] A floor scrubber is a cleaning machine suitable for cleaning hard surfaces while simultaneously draining away wastewater and removing it from the site. It offers advantages such as environmental friendliness, energy efficiency, and high efficiency. Floor scrubbers come in various types: semi-automatic, fully automatic, push-type, and ride-on. While floor scrubbers have only been used in China for a short time, they are already widely used in various sectors of society in developed countries, particularly in areas with large hard surfaces such as stations, docks, airports, workshops, warehouses, schools, hospitals, restaurants, and shopping malls. They replace manual labor with a mechanical cleaning method.

[0003] At present, the suction blades in the floor scrubber are usually directly installed on a separate motor for operation, and are installed in the main machine. The floor brush is used for cleaning, and the main machine sucks sewage or dust. The floor scrubber needs to drive two devices during operation, namely the roller brush and the blades. The existing method is to use two motors to drive them separately, which will generate a lot of heat during operation, and the noise during operation is very loud, the preparation cost is high, and the energy saving effect is poor. Therefore, it is necessary to design a new blade transmission mechanism for the cleaning device to solve the above problems. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a technical solution that can solve the above-mentioned problems.

[0005] A fan blade transmission mechanism of a cleaning device includes a motor fixing seat, in which a double-headed motor and a gear reduction assembly are fastened with screws;

[0006] A gear base is formed on the left side of the motor fixing seat, and a large belt gear is rotatably installed on the end of the gear base away from the motor fixing seat. A small belt gear is fixedly installed on the left end of the rotor of the double-headed motor, and a transmission belt is installed between the large belt gear and the small belt gear.

[0007] A small gear is rotatably mounted in the gear base, the small gear is meshed and mounted on the large belt gear, a fan blade assembly is fixedly mounted on the axis of the small gear, and the fan blade assembly is arranged on the right side of the gear base;

[0008] The right end of the double-headed motor is connected to a roller brush transmission head through a gear reduction assembly.

[0009] Further solution: an input shaft and an output shaft are respectively provided in the middle of the left and right ends of the gear reduction assembly, the right end of the rotor of the double-headed motor is fixedly mounted on the input shaft of the gear reduction assembly, and the roller brush transmission head is fixedly mounted on the output shaft of the gear reduction assembly.

[0010] Further solution: the roller brush transmission head includes a hard rubber head and a soft rubber head, both of which are fixedly mounted on the output shaft of the gear reduction assembly, the soft rubber head is fixedly mounted on the left side of the hard rubber head, and the motor fixing seat and the soft rubber head are separated from each other on the left and right.

[0011] A further solution: the gear reduction assembly adopts a planetary reducer.

[0012] A further solution: a gear fixing seat is installed on the left side of the gear base by screws, a heat dissipation cavity is formed between the gear base and the gear fixing seat, the heat dissipation cavity and the motor fixing seat are connected to each other, an air inlet is formed at the right end of the motor fixing seat, the output shaft of the gear reduction assembly is clearance-fitted in the air inlet, an air outlet is formed on the side of the gear base, the air outlet is located above the fan blade assembly, and the heat dissipation cavity is connected between the air inlet and the air outlet.

[0013] A further solution is that a ventilation gap is left between the inner side surface of the motor fixing seat and the double-headed motor and the gear reduction assembly, and the ventilation gap leads to the heat dissipation cavity.

[0014] A further solution: a first positioning shaft is fixedly installed between the gear base and the gear fixing seat, a first bearing is installed on the outer sleeve of the first positioning shaft, the first bearing is installed in conjunction with the inner ring of the large belt gear, and the large belt gear is rotatably installed on the first positioning shaft through the first bearing.

[0015] A further solution: The fan blade assembly includes a second positioning shaft, a fan blade upper shell, a fan blade lower shell and a built-in fan blade. The built-in fan blade is integrally formed and arranged on the fan blade lower shell. The fan blade upper shell is ultrasonically welded to the built-in fan blade of the fan blade lower shell. The second positioning shaft is fixedly installed at the axis of the fan blade upper shell and the fan blade lower shell. The left end of the second positioning shaft is sleeved with a shaft sleeve, and the pinion is fixedly connected to the second positioning shaft through the shaft sleeve. The left end of the second positioning shaft is sleeved with a second bearing, and the pinion is rotatably fitted between the gear base and the gear fixing seat through the second bearing.

[0016] A further solution: the gear base and the motor fixing base are arranged perpendicular to each other.

[0017] Further solution: the large belt gear includes a belt connecting tooth and a driving tooth. The belt connecting tooth is integrally formed and arranged on the left side of the driving tooth. The outer diameter of the driving tooth is larger than the belt connecting tooth. The transmission belt is installed on the belt connecting tooth, and the small gear is meshed and installed on the driving tooth.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Using the same double-headed motor as the power source for the fan assembly and the roller brush transmission head reduces the space occupied by the additional motor structure, making the machine lighter, lowering the manufacturing cost, and making the machine more energy-efficient and generating less heat;

[0020] 2. The left end of the double-headed motor rotor drives the large belt gear through a belt connection, and the large belt gear then drives the fan blade assembly to rotate through gear meshing. The right end of the double-headed motor rotor drives the roller brush transmission head to rotate through the gear reduction assembly, thereby achieving two different operating speeds. Since the speed of the fan blade assembly after acceleration is more than twice the speed of the double-headed motor, and because the installation accuracy of the belt is much smaller than that of the gear device, the transmission method of the present invention has the advantage of low noise.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0025] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0026] Figure 4 It is a structural diagram of the fan blade assembly;

[0027] Figure 5 It is a left-side structural schematic diagram of the present invention;

[0028] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure at AA in the middle;

[0029] Figure 7 yes Figure 5 Schematic diagram of the cross-sectional structure at DD in the middle;

[0030] Figure 8It is a right-side structural schematic diagram of the present invention.

[0031] As shown in the figure: 1. Motor fixing seat; 2. Double-headed motor; 3. Gear reduction assembly; 31. Input shaft; 32. Output shaft, 4. Gear base; 5. Large belt gear; 5.1. Belt connecting tooth; 5.2. Drive tooth; 51. First positioning shaft; 52. First bearing; 6. Small belt gear; 7. Transmission belt; 8. Small gear; 9. Fan blade assembly; 91. Second positioning shaft; 92. Fan blade upper shell; 93. Fan blade lower shell; 94. Built-in fan blade; 95. Bushing; 96. Second bearing; 10. Roller brush transmission head; 101. Hard rubber head; 102. Soft rubber head; 11. Gear fixing seat; 12. Heat dissipation cavity; 13. Air inlet; 14. Air outlet; 15. Ventilation gap. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] like Figure 1-8 As shown, a fan blade transmission mechanism of a cleaning device of the present invention includes a motor fixing base 1, in which a double-headed motor 2 and a gear reduction assembly 3 are fastened by screws;

[0038] A gear base 4 is formed on the left side of the motor fixing base 1. A large belt gear 5 is rotatably mounted on the end of the gear base 4 away from the motor fixing base 1. A small belt gear 6 is fixedly mounted on the left end of the rotor of the double-headed motor 2. A transmission belt 7 is mounted between the large belt gear 5 and the small belt gear 6.

[0039] A small gear 8 is rotatably mounted in the gear base 4, and the small gear 8 is meshed and mounted on the large belt gear 5. A fan blade assembly 9 is fixedly mounted on the axis of the small gear 8, and the fan blade assembly 9 is arranged on the right side of the gear base 4;

[0040] The right end of the double-headed motor 2 is connected to a roller brush transmission head 10 through a gear reduction assembly 3;

[0041] The principle is: using the same double-headed motor 2 as the power source for the fan blade assembly 9 and the roller brush transmission head 10, the left end of the double-headed motor 2 rotor drives the large belt gear 5 through a belt connection, and the large belt gear 5 then drives the fan blade assembly 9 to rotate through gear meshing, and the right end of the double-headed motor 2 rotor drives the roller brush transmission head 10 to rotate through the gear reduction assembly 3, thereby achieving two different operating speeds. Since the rotational speed of the fan blade assembly 9 after acceleration is more than twice that of the double-headed motor 2, and because the installation accuracy of the belt is much smaller than that of the gear device, if the fan blade assembly 9 is directly driven by the belt, greater noise will be generated. The present invention uses a single double-headed motor 2 to drive the fan blade assembly 9 and the roller brush transmission head 10 at the same time. Compared with the existing technology, it has the advantages of low heat generation, small size, low manufacturing cost, low noise and good energy saving effect.

[0042] Further solution: an input shaft 31 and an output shaft 32 are respectively provided in the middle of the left and right ends of the gear reduction assembly 3, the right end of the rotor of the double-headed motor 2 is fixedly mounted on the input shaft 31 of the gear reduction assembly 3, and the roller brush transmission head 10 is fixedly mounted on the output shaft 32 of the gear reduction assembly 3.

[0043] Further solution: the roller brush transmission head 10 includes a hard rubber head 101 and a soft rubber head 102, both of which are fixedly mounted on the output shaft 32 of the gear reduction assembly 3, and the soft rubber head 102 is fixedly mounted on the left side of the hard rubber head 101, and the motor fixing seat 1 and the soft rubber head 102 are separated from each other on the left and right; when the hard rubber head 101 is taken out to clean the machine, the setting of the soft rubber head 102 can prevent water from splashing into the double-headed motor 2 and the gear reduction assembly 3.

[0044] A further solution: the gear reduction assembly 3 adopts a planetary reducer.

[0045] When assembling the roller brush transmission head 10, first press the small belt gear 6 into the left end of the rotor of the double-headed motor 2, then install the double-headed motor 2 and the gear reduction assembly 3 into the motor fixing seat 1 and lock them with screws, and at the same time connect the hard rubber head 101 of the roller brush transmission head 10 to the output shaft 32 of the gear reduction assembly 3.

[0046] Further solution: A gear fixing seat 11 is installed on the left side of the gear base 4 by screws, and a heat dissipation cavity 12 is formed between the gear base 4 and the gear fixing seat 11. The heat dissipation cavity 12 is separated from the large belt gear 5, the small belt gear 6, the transmission belt 7 and the small gear 8. The heat dissipation cavity 12 is connected to the motor fixing seat 1. An air inlet hole 13 is formed at the right end of the motor fixing seat 1. The output shaft 32 of the gear reduction assembly 3 is clearance-fitted in the air inlet hole 13. An air outlet hole 14 is formed on the side of the gear base 4. The air outlet 14 is located above the fan blade assembly 9, and the heat dissipation cavity 12 is connected between the air inlet 13 and the air outlet 14; when the fan blade assembly 9 and the roller brush transmission head 10 are running, the external air will enter the motor fixing seat 1 from the air inlet 13, and then enter the heat dissipation cavity 12, and finally be output through the air outlet 14. When the fan blade assembly 9 rotates, a small amount of vacuum suction can be formed to absorb the air volume at the air outlet 14, thereby taking away the heat of the double-headed motor 2 when it is working, which can achieve the effect of rapid heat dissipation and ensure that the machine will not be overheated and damaged.

[0047] A further solution: a ventilation gap 15 is left between the inner side surface of the motor fixing base 1 and the double-headed motor 2 and the gear reduction assembly 3, and the ventilation gap 15 leads to the heat dissipation cavity 12; the ventilation gap 15 can quickly take away the heat generated by the double-headed motor 2 and the gear reduction assembly 3 during operation, thereby achieving the effect of rapid heat dissipation.

[0048] A further solution: a first positioning shaft 51 is fixedly installed between the gear base 4 and the gear fixing seat 11, and a first bearing 52 is installed on the outer side of the first positioning shaft 51. The first bearing 52 is installed in cooperation with the inner ring of the large belt gear 5, and the large belt gear 5 is rotatably installed on the first positioning shaft 51 through the first bearing 52; making the rotation of the large belt gear 5 more stable and smooth.

[0049] A further solution: the fan blade assembly 9 includes a second positioning shaft 91, a fan blade upper shell 92, a fan blade lower shell 93 and a built-in fan blade 94. The built-in fan blade 94 is integrally formed and arranged on the fan blade lower shell 93. The fan blade upper shell 92 is ultrasonically welded to the built-in fan blade 94 of the fan blade lower shell 93. The second positioning shaft 91 is fixedly installed at the axis of the fan blade upper shell 92 and the fan blade lower shell 93. The left end of the second positioning shaft 91 is sleeved with a shaft sleeve 95. The pinion 8 is fixedly connected to the second positioning shaft 91 through the shaft sleeve 95. The left end of the second positioning shaft 91 is sleeved with a second bearing 96. The pinion 8 is rotatably mounted between the gear base 4 and the gear fixing seat 11 through the second bearing 96; it can ensure the stable installation of the fan blade assembly 9, so that the fan blade assembly 9 can operate more stably and smoothly.

[0050] A further solution: the gear base 4 and the motor fixing base 1 are arranged perpendicular to each other.

[0051] A further solution: the large belt gear 5 includes a belt connecting tooth 5.1 and a driving tooth 5.2. The belt connecting tooth 5.1 is integrally formed and arranged on the left side of the driving tooth 5.2. The outer diameter of the driving tooth 5.2 is larger than the belt connecting tooth 5.1. The transmission belt 7 is installed on the belt connecting tooth 5.1, and the small gear 8 is meshed and installed on the driving tooth 5.2. The fan blade assembly 9 is driven to rotate by gear transmission to ensure the stability of the fan blade assembly 9 during operation.

[0052] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of protection of the technical solution of the present invention.

Claims

1. A fan drive mechanism for a cleaning device, comprising a motor mounting base, characterized in that: The double-headed motor and the gear reduction assembly are fixedly mounted in the motor fixing seat by screws; A gear base is formed on the left side of the motor fixing seat, and a large belt gear is rotatably installed on the end of the gear base away from the motor fixing seat. A small belt gear is fixedly installed on the left end of the rotor of the double-headed motor, and a transmission belt is installed between the large belt gear and the small belt gear. A small gear is rotatably mounted in the gear base, the small gear is meshed and mounted on the large belt gear, a fan blade assembly is fixedly mounted on the axis of the small gear, and the fan blade assembly is arranged on the right side of the gear base; The right end of the double-headed motor drives a roller brush transmission head through a gear reduction assembly; An input shaft and an output shaft are respectively provided in the middle of the left and right ends of the gear reduction assembly. The right end of the rotor of the double-headed motor is fixedly mounted on the input shaft of the gear reduction assembly, and the roller brush transmission head is fixedly mounted on the output shaft of the gear reduction assembly. A gear fixing seat is installed on the left side of the gear base by screws, and a heat dissipation cavity is formed between the gear base and the gear fixing seat. The heat dissipation cavity and the motor fixing seat are connected to each other. An air inlet is formed at the right end of the motor fixing seat, and the output shaft of the gear reduction assembly is clearance-fitted in the air inlet. An air outlet is formed on the side of the gear base, and the air outlet is located above the fan blade assembly. The heat dissipation cavity is connected between the air inlet and the air outlet.

2. The fan blade transmission mechanism of a cleaning device according to claim 1, characterized in that: The roller brush transmission head includes a hard rubber head and a soft rubber head, both of which are fixedly mounted on the output shaft of the gear reduction assembly. The soft rubber head is fixedly mounted on the left side of the hard rubber head, and the motor fixing seat and the soft rubber head are separated from each other on the left and right.

3. The fan blade transmission mechanism of a cleaning device according to any one of claims 1-2, characterized in that: The gear reduction assembly adopts a planetary reducer.

4. The fan blade transmission mechanism of a cleaning device according to claim 1, characterized in that: A ventilation gap is left between the inner side surface of the motor fixing seat and the double-headed motor and the gear reduction assembly, and the ventilation gap leads to the heat dissipation cavity.

5. The fan blade transmission mechanism of a cleaning device according to claim 1, characterized in that: A first positioning shaft is fixedly installed between the gear base and the gear fixing seat, and a first bearing is installed on the outer sleeve of the first positioning shaft. The first bearing is installed on the inner ring of the large belt gear, and the large belt gear is rotatably installed on the first positioning shaft through the first bearing.

6. The fan blade transmission mechanism of a cleaning device according to claim 1, characterized in that: The fan blade assembly includes a second positioning shaft, a fan blade upper shell, a fan blade lower shell and a built-in fan blade. The built-in fan blade is integrally formed and arranged on the fan blade lower shell. The fan blade upper shell is ultrasonically welded to the built-in fan blade of the fan blade lower shell. The second positioning shaft is fixedly installed at the axis of the fan blade upper shell and the fan blade lower shell. The left end of the second positioning shaft is sleeved with a shaft sleeve, and the pinion is fixedly connected to the second positioning shaft through the shaft sleeve. The left end of the second positioning shaft is sleeved with a second bearing, and the pinion is rotatably fitted between the gear base and the gear fixing seat through the second bearing.

7. The fan blade transmission mechanism of a cleaning device according to claim 1, characterized in that: The gear base and the motor fixing seat are arranged perpendicular to each other.

8. The fan blade transmission mechanism of a cleaning device according to claim 1, characterized in that: The large belt gear includes a belt connecting tooth and a driving tooth. The belt connecting tooth is integrally formed and arranged on the left side of the driving tooth. The outer diameter of the driving tooth is larger than the belt connecting tooth. The transmission belt is installed on the belt connecting tooth, and the small gear is meshed and installed on the driving tooth.

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