CN213125757U - Speed reduction motor assembly with buffering effect - Google Patents

Abstract

The application discloses a speed reduction motor assembly with a buffering effect, wherein a reduction gearbox is fixed at one end, provided with a rotating shaft, of a motor and comprises an output shaft, the rotation of the rotating shaft is transmitted to the output shaft through the reduction gearbox in a speed reduction manner, and the output shaft is fixedly connected to a roller; the end cover is fixedly connected to one end of the motor, which is back to the reduction gearbox, and the end of the end cover, which is far away from the motor, is a connecting seat; the fixed flange comprises a first end and a second end which are oppositely arranged, the first end of the fixed flange is hinged with the free end of the connecting seat, and the second end of the fixed flange is used for fixing the speed reduction motor assembly; the utility model discloses gear motor subassembly with buffering effect, the motion of the high rotational speed low moment of torsion of pivot becomes the motion of the low rotational speed high moment of torsion of output shaft through the conversion of reducing gear box to realize the effective drive of output shaft to the cylinder; the hinge structure between the connecting seat and the fixed flange is utilized to deal with external force impact, and the buffering protection effect is realized.

Description

Speed reduction motor assembly with buffering effect

Technical Field

The utility model relates to a gear motor mechanical structure, in particular to gear motor subassembly with buffering effect.

Background

Motorized drums have a wide variety of uses in various fields. Along with the development of science and technology, various machines of sweeping the floor are more and more, and a core functional component in common machine of sweeping the floor is the cylinder, and the structure of sweeping such as brush hair is connected to the cylinder outer wall to the rotation of cylinder can realize the function of sweeping the floor.

Because the road conditions of the working environment are complex, the roller is often subjected to the action of external force during working. Particularly, when the motor assembly of the roller is in an internal installation type, the motor assembly of the roller is impacted and damaged under the action of external force born by the roller; and the fixing structure of the drum itself may be damaged by an external force.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a, aim at solving the problem that cylinder motor element receives external force to strike and produces deformation or damage hidden danger.

In order to achieve the above object, the utility model provides a gear motor subassembly with buffering effect, gear motor subassembly includes:

a motor including a rotating shaft;

the reduction gearbox is fixed at one end, provided with a rotating shaft, of the motor and comprises an output shaft, the rotation of the rotating shaft is transmitted to the output shaft through the reduction gearbox in a speed reducing mode, and the output shaft is fixedly connected to the roller;

the end cover is fixedly connected to one end, back to the reduction gearbox, of the motor, and a connecting seat is arranged at one end, far away from the motor, of the end cover;

fixed flange, fixed flange include relative first end and the second end that sets up, and fixed flange's first end is articulated with the free end of connecting seat, and fixed flange's second end is used for fixed gear motor subassembly.

Further, the articulated department of flange's first end and connecting seat is equipped with the articulated shaft, and the articulated shaft is the rubber material axle.

Furthermore, the fixing flange peripheral wall is provided with at least one inner groove, and the inner groove extends to the first end of fixing flange from the second end of fixing flange.

Further, the end cover includes the upper end cover of stereoplasm and soft bottom end cover, and wherein, the bottom end cover sets up between upper end cover and motor.

Further, the reducing gear box includes the reducing gear box barrel, and the internal perisporium of reducing gear box barrel is the metal ring gear, and the periphery wall of reducing gear box barrel is the wall column structure of polymer material, internal perisporium and peripheral wall interconnect.

Furthermore, two flange bearings are oppositely arranged on the output shaft, an inner ring of each flange bearing is in clearance fit with the output shaft, and an outer ring of each flange bearing is in interference fit with the reduction gearbox cylinder.

Further, the reduction gearbox is a three-stage planetary reduction gearbox.

Further, the gear motor component also comprises a cylindrical shell, the cylindrical shell is fixed on the peripheries of the motor, the reduction box and the end cover, and the connecting seat of the end cover is exposed out of the cylindrical shell.

Further, the cylindrical shell is an aluminum alloy cylinder

The utility model discloses gear motor subassembly with buffering effect, the motion of the high rotational speed low moment of torsion of pivot becomes the motion of the low rotational speed high moment of torsion of output shaft through the conversion of reducing gear box to realize the effective drive of output shaft to the cylinder; the hinge structure between the connecting seat and the fixed flange is utilized to deal with external force impact, and the buffering protection effect is realized.

Drawings

Fig. 1 is an overall schematic view of a gear motor assembly according to an embodiment of the present invention;

fig. 2 is a disassembled schematic view (motor hidden) of the gear motor assembly according to an embodiment of the present invention;

fig. 3 is an assembly diagram (longitudinal section) of a gear motor assembly according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1-3, in an embodiment of the present invention, a gear motor assembly with a buffering effect includes:

a motor 100, the motor 100 including a rotating shaft 110;

the reduction box 200 is fixed at one end of the motor 100, which is provided with the rotating shaft 110, the reduction box 200 comprises an output shaft 230, the rotation of the rotating shaft 110 is transmitted to the output shaft 230 after being reduced by the reduction box 200, and the output shaft 230 is fixedly connected to the roller 700;

the end cover 300 is fixedly connected to the motor 100 and faces away from one end of the reduction gearbox 200, and a connecting seat 311 is arranged at one end, far away from the motor 100, of the end cover 300;

fixing flange 400, fixing flange 400 includes relative first end and the second end that sets up, fixing flange 400 the first end with the free end of connecting seat 311 is articulated, fixing flange 400 the second end is used for fixed gear motor subassembly.

The motion of the rotating shaft 110 with high rotating speed and low torque is converted into the motion of the output shaft 230 with low rotating speed and high torque through the reduction box 200, so that the output shaft 230 can effectively drive the roller 700. The hinge structure between the connecting seat 311 and the fixing flange 400 is used for responding to external force impact, so that a buffering effect is realized. The other end of the fixing flange 400 is fixed to a mechanical structure (sweeper, etc.) to which the drum 700 belongs, so that the reduction motor assembly is fixed without rotating together with the drum 700. In practice, the output shaft 230 shaft may be coupled to the drum 700 through a cross coupling. The first end of the fixing flange 400 is hinged to the free end of the connecting seat 311, the fixing flange 400 and the end cap 300 can be movably turned over on a plane, and external force parallel to the plane can be buffered; specifically, when the speed reduction motor assembly is fixedly installed, an angle formed by the plane and a working plane (such as the ground) of a mechanical structure (such as a sweeper or the like) to which the roller 700 belongs is adjusted according to requirements.

In one embodiment, a hinge shaft 312 is disposed at a hinge position of the first end of the fixing flange 400 and the connecting seat 311, and the hinge shaft 312 is a shaft made of rubber. The hinge shaft 312 made of rubber connects the fixing flange 400 and the connecting seat 311, thereby providing a buffering effect. In the present embodiment, the material of the hinge shaft 312 is not selected from conventional hard metal, but is rubber material to provide a buffering effect. The rubber material has considerable strength and certain softness (such as nitrile rubber material with high vulcanization degree). In other embodiments, the material of the hinge shaft 312 may be selected from a plastic material with certain softness.

In one embodiment, the fixing flange 400 is provided with at least one inner groove 410 on the outer circumferential wall, and the inner groove 410 extends from the second end of the fixing flange 400 to the first end of the fixing flange 400. If the mounting position of the reduction motor unit is the drum 700 for cleaning, hair is caught on the fixing flange 400 side. The hair can be cut off at the inner groove, and the cleaning is convenient.

In one embodiment, the end cap 300 includes a hard upper end cap 310 and a soft lower end cap 320, wherein the lower end cap 320 is disposed between the upper end cap 310 and the motor 100.

The soft lower cap 320 is clamped between the upper cap 310 and the motor 100, and external force is applied to the motor 100 through the lower cap 320, and the lower cap 320 provides a buffer effect.

In one embodiment, the reduction gearbox 200 includes a reduction gearbox cylinder 220, an inner peripheral wall of the reduction gearbox cylinder 220 is a metal gear ring, an outer peripheral wall of the reduction gearbox cylinder 220 is a polymer wall-shaped structure, and the inner peripheral wall and the outer peripheral wall are connected with each other.

The internal peripheral wall of above-mentioned reducing gear box barrel 220 can increase the rigidity for the setting of metal ring gear, and the setting of the wall column structure of above-mentioned reducing gear box barrel 220 for polymer material can increase corrosion resistance.

In one embodiment, two flange bearings 600 are oppositely arranged on the output shaft 230, an inner ring of the flange bearing 600 is in clearance fit with the output shaft 230, and an outer ring of the flange bearing 600 is in interference fit with the reduction gearbox cylinder 220.

In this embodiment, the flange bearing is used to limit the axial displacement of the output shaft 230, so as to avoid damage to the gear in the reduction gearbox 200. Due to the various working environments of the roller 700, external forces in various directions can be applied, and the axial force applied to the output shaft 230 is transferred to the reduction gearbox cylinder 220.

In one embodiment, the reduction gearbox 200 is a three stage planetary reduction gearbox. The reduction gearbox 200 is of a worm and gear reduction gearbox, a worm gear reduction gearbox, a planetary reduction gearbox and the like, and the three-stage planetary reduction gearbox with the planetary mechanism selected as the reduction gearbox 200 has the advantages of stable operation and compact structure.

In one embodiment, the electric motor further comprises a cylindrical housing 500, the cylindrical housing 500 is fixed to the outer peripheries of the electric motor 100, the reduction gearbox 200 and the end cover 300, and the connecting seat 311 of the end cover 300 is exposed out of the cylindrical housing 500.

In this embodiment, the cylindrical housing 500 fixes the motor 100, the reduction box 200 and the end cap 300 into a stable structure, which is convenient for transportation and installation. In practice, the connection between the end cap 300 and the cylindrical housing 500 may be achieved by screws, and the connection between the reduction gearbox 200 and the cylindrical housing 500 may be achieved by screws.

In one embodiment, the barrel housing 500 is an aluminum alloy barrel. Has the advantages of light weight, corrosion resistance and high strength.

To sum up, the speed reduction motor assembly with buffering effect of the present invention converts the high speed and low torque movement of the rotating shaft 110 into low speed and high torque movement of the output shaft 230 through the reduction box 200, so as to realize the effective driving of the output shaft 230 to the roller; the hinge structure between the connecting seat 311 and the fixing flange 400 is used for responding to external force impact, so that the buffering protection effect is realized.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (9)

1. A gear motor assembly having a cushioning effect, said gear motor assembly comprising:

a motor including a rotating shaft;

the reduction gearbox is fixed at one end, provided with the rotating shaft, of the motor and comprises an output shaft, the rotation of the rotating shaft is transmitted to the output shaft through the reduction gearbox in a speed reducing mode, and the output shaft is fixedly connected to the roller;

the end cover is fixedly connected to one end, back to the reduction gearbox, of the motor, and a connecting seat is arranged at one end, far away from the motor, of the end cover;

the fixing flange comprises a first end and a second end which are oppositely arranged, the first end of the fixing flange is hinged with the free end of the connecting seat, and the second end of the fixing flange is used for fixing the speed reduction motor assembly.

2. The buffer effect gear motor assembly according to claim 1, wherein a hinge shaft is provided at a hinge point of the first end of the fixing flange and the connecting seat, and the hinge shaft is a shaft made of rubber.

3. The buffer effect gear motor assembly according to claim 1, wherein said fixing flange has at least one inner recess formed in an outer peripheral wall thereof, said inner recess extending from said second end of said fixing flange to said first end of said fixing flange.

4. The buffer effect reduction motor assembly according to any one of claims 1 to 3, wherein the end caps comprise a hard upper end cap and a soft lower end cap, and wherein the lower end cap is disposed between the upper end cap and the motor.

5. The reduction motor assembly with the buffering effect according to claim 4, wherein the reduction gearbox comprises a reduction gearbox cylinder, the inner peripheral wall of the reduction gearbox cylinder is a metal gear ring, the outer peripheral wall of the reduction gearbox cylinder is a wall-shaped structure made of polymer, and the inner peripheral wall and the outer peripheral wall are connected with each other.

6. The gear motor assembly with the buffering effect as claimed in claim 5, wherein two flange bearings are oppositely arranged on the output shaft, an inner ring of each flange bearing is in clearance fit with the output shaft, and an outer ring of each flange bearing is in interference fit with the cylinder body of the reduction gearbox.

7. The buffer effect reduction motor assembly according to claim 6, wherein the reduction gearbox is a three-stage planetary reduction gearbox.

8. The gear motor assembly with the buffering effect according to any one of claims 1 to 3, further comprising a cylindrical housing, wherein the cylindrical housing is fixed to the periphery of the motor, the reduction gearbox and the end cover, and the connecting seat of the end cover is exposed out of the cylindrical housing.

9. The buffer effect reduction motor assembly according to claim 8, wherein the cylindrical housing is an aluminum alloy cylinder.

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