Electric roller with clutch

Abstract

The utility model relates to the technical field of electric rollers, and specifically to an electric roller with a clutch. The electric roller comprises a roller body, a motor and a clutch, wherein the motor is installed in the roller body, and the clutch comprises a rotating assembly installed in the roller body, and the motor drives the rotating assembly to rotate, thereby driving the roller body to rotate; specifically, in the utility model, the rotating assembly is independently arranged from the roller body, and is not bonded or welded to the inner wall of the roller body, so as to increase the use time, there will be no aging of the bonding glue and deformation of the welding, so that the electric roller of the utility model has a long service life.

Description

Technical Field

[0001] The utility model relates to the field of electric rollers, in particular to an electric roller with a clutch. Background Art

[0002] The electric drum is a new type of drive device that places the motor inside the drum body. It has the advantages of compact structure, high transmission efficiency and low noise.

[0003] Since the drum body needs to be connected to the motor so that the motor can transmit power to the drum body and make the drum body rotate, the prior art generally glues or welds a structure for connecting with the motor transmission inside the drum body. However, as the use time increases, the glue will gradually age and the welding will gradually deform, so that the service life of the electric drum in the prior art is relatively low. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide an electric roller with a clutch to solve the problem of short service life of the electric roller in the prior art.

[0005] The electric roller with clutch provided by the embodiment of the utility model comprises: a roller body, a motor and a clutch; the motor is installed inside the roller body; the clutch comprises a rotating assembly installed in the roller body, and the rotating assembly comprises a rotating wheel, a spring and a roller; the axial direction of the rotating wheel is the same as the axial direction of the roller body, the motor is connected to the rotating wheel to drive the rotating wheel to rotate, and a mounting groove is provided on the outer peripheral wall of the rotating wheel, and the mounting groove comprises a first groove wall and a second groove wall; the first groove wall is connected to the outer peripheral wall and extends in a direction close to the center position of the rotating wheel, the second groove wall is connected to the outer peripheral wall and a side of the first groove wall away from the outer peripheral wall, and the second groove wall is vertically arranged with the first groove wall; the roller is installed in the mounting groove and is spaced apart from the first groove wall, the spring is installed between the roller and the first groove wall, and the spring is used to drive the roller to squeeze the inner wall of the roller body.

[0006] Optionally, a plurality of the mounting grooves are provided, and the plurality of the mounting grooves are evenly arranged on the circumference of the rotating wheel, and a plurality of the springs and the rollers are correspondingly provided.

[0007] Optionally, a groove is provided on the first groove wall, and one end of the spring is installed in the groove.

[0008] Optionally, the clutch further comprises blocking plates, which are mounted on both sides of the rotating wheel in the axial direction, and are used to shield the mounting grooves on both sides of the rotating wheel in the axial direction.

[0009] Optionally, the roller is provided with a guide shaft, and the guide shaft is located in the axial direction of the roller; the baffle is provided with a strip sliding hole, and the strip sliding hole extends along the spacing direction between the roller and the first groove wall, and the guide shaft passes through the strip sliding hole.

[0010] Optionally, the rotating wheel is provided with one of an insert block or an insert hole, the blocking piece is provided with the other of the insert block and the insert hole, and the insert block is plugged into the insert hole.

[0011] Optionally, the insert block is arranged at the center position of the rotating wheel, and the insert hole is arranged at the center position of the blocking piece.

[0012] Optionally, two springs are arranged in each installation groove, and the two springs are arranged at intervals in the axial direction of the rotating wheel.

[0013] Optionally, two rotating components are provided, wherein in one of the rotating components, the first groove wall is arranged in the clockwise direction of the second groove wall; wherein in the other rotating component, the first groove wall is arranged in the counterclockwise direction of the second groove wall.

[0014] Optionally, the motor is a brushless motor.

[0015] Compared with the prior art, the electric roller with clutch provided by the embodiment of the utility model has the following beneficial effects: the electric roller provided by the embodiment of the utility model comprises a roller body, a motor and a clutch; the axial direction of the rotating wheel is the same as the axial direction of the roller body, the motor is connected to the rotating wheel to drive the rotating wheel to rotate, a mounting groove is provided on the outer peripheral wall of the rotating wheel, the mounting groove comprises a first groove wall and a second groove wall, the first groove wall is connected to the outer peripheral wall and extends in a direction close to the center position of the rotating wheel, the second groove wall is arranged perpendicular to the first groove wall, the roller is installed in the mounting groove and is spaced apart from the first groove wall, the spring is installed between the roller and the first groove wall, the spring is used to drive the roller to squeeze the inner wall of the roller body; in this way, there is a movable margin between the roller and the first groove wall, when When the motor drives the rotating wheel to rotate along the first rotation direction, the spring will be compressed and deformed, and the roller can move in the direction close to the first groove wall without being locked. At this time, the rotating assembly will not drive the drum body to rotate; when the motor drives the rotating wheel to rotate along the second direction, the ball will squeeze the inner wall of the drum body under the action of the spring. At this time, the inner wall of the drum body will be locked together with the rotating assembly, so that the motor can drive the rotating assembly to rotate, and then drive the drum body to rotate; since the inner wall of the drum body in the embodiment of the utility model does not need to be bonded or welded on the structure for connecting with the motor transmission, there will be no situation that affects the service life of the electric drum due to glue aging, welding deformation, etc. Therefore, the electric drum in the embodiment of the utility model has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a three-dimensional schematic diagram of the electric drum provided by the embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the electric roller provided by the embodiment of the utility model with the roller body omitted;

[0019] Figure 3 It is a three-dimensional schematic diagram of a clutch provided by an embodiment of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of a rotating assembly provided in an embodiment of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of a baffle and a rotating assembly provided in an embodiment of the utility model;

[0022] Figure 6 It is an exploded schematic diagram of a rotating wheel and a blocking piece in a clutch assembly provided in an embodiment of the utility model.

[0023] The reference numerals in the figures are:

[0024] 1000. Electric roller;

[0025] 100, drum body;

[0026] 200, motor;

[0027] 300, clutch; 310, rotating assembly; 311, rotating wheel; 3111, peripheral wall; 3112, mounting groove; 31121, first groove wall; 311211, groove; 31122, second groove wall; 3113, plug block; 312, spring; 313, roller; 3131, guide shaft; 320, baffle; 321, strip sliding hole; 322, plug hole. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0029] The present utility model embodiment provides a motorized drum 1000 with a clutch 300, such as Figure 1-Figure 4As shown, the electric drum 1000 includes: a drum body 100, a motor 200 and a clutch 300. The axial direction of the rotating wheel 311 is the same as the axial direction of the drum body 100. The motor 200 is connected to the rotating wheel 311 to drive the rotating wheel 311 to rotate. The outer peripheral wall 3111 of the rotating wheel 311 is provided with a mounting groove 3112. The mounting groove 3112 includes a first groove wall 31121 and a second groove wall 31122. The first groove wall 31121 is connected to the outer peripheral wall 3111 and extends in a direction close to the center of the rotating wheel 311. The second groove wall 31122 is arranged perpendicular to the first groove wall 31121. The roller 313 is installed in the mounting groove 3112 and is spaced apart from the first groove wall 31121. The spring 312 is installed between the roller 313 and the first groove wall 31121. The spring 312 is used to drive the roller 313 to squeeze the inner wall of the drum body 100.

[0030] Specifically, it is defined that the first groove wall 31121 is located in the first rotation direction of the second groove wall 31122, and the second groove wall 31122 is located in the second rotation direction of the first groove wall 31121; since the roller 313 is spaced apart from the first groove wall 31121, there is a margin of movement between the roller 313 and the first groove wall 31121. When the motor 200 drives the rotating wheel 311 to rotate along the first rotation direction, the spring 312 will be compressed and deformed, and the roller 313 can move in the direction close to the first groove wall 31121 and will not be locked with the drum body 100. At this time, the rotating assembly 310 will not drive the drum body 100 to rotate. When the motor 200 drives the rotating wheel 311 to rotate along the second direction, the ball will squeeze the inner wall of the drum body 100 under the action of the spring 312. At this time, the inner wall of the drum body 100 will be locked with the rotating assembly 310, so that the motor 200 can drive the rotating assembly 310 to rotate, thereby driving the drum body 100 to rotate.

[0031] Since the inner wall of the drum body 100 of this embodiment does not need to be bonded or welded with a structure for transmission connection with the motor 200, there will naturally be no situation that glue aging, welding deformation, etc. will affect the service life of the electric drum 1000. Therefore, by implementing this embodiment, the service life of the electric drum 1000 can be effectively increased.

[0032] refer to Figure 4 In a specific embodiment, a plurality of mounting grooves 3112 are provided, and the plurality of mounting grooves 3112 are evenly arranged on the circumference of the rotating wheel 311 , and a plurality of springs 312 and rollers 313 are correspondingly provided.

[0033] Specifically, even if only one roller 313 is provided, the motor 200 can drive the drum body 100 to rotate using the rotating assembly 310. However, a single roller 313 will result in lower stability when the drum body 100 rotates, and the pressure on the roller 313 will be very large, so that the service life of the rotating assembly 310 will be relatively short.

[0034] By implementing this embodiment, a plurality of mounting grooves 3112 are provided, and the plurality of mounting grooves 3112 are evenly arranged on the circumference of the rotating wheel 311, and a plurality of springs 312 and rollers 313 are correspondingly provided. Providing a plurality of rollers 313 can also improve the stability of the drum body 100 during rotation, and can evenly share the load by using a plurality of rollers 313, reduce the pressure on each roller 313, thereby reducing the degree of wear of the roller 313 and extending the service life of the rotating assembly 310.

[0035] refer to Figure 4 , Figure 6 In a specific embodiment, a groove 311211 is provided on the first groove wall 31121 , and one end of the spring 312 is installed in the groove 311211 .

[0036] Specifically, when the groove 311211 is not provided, the spring 312 lacks restraint. As the use time of the electric drum 1000 increases, the spring 312 is easily displaced, resulting in a decrease in the performance of the electric drum 1000, or even failure of the rotating assembly 310. In order to solve this technical problem, the present embodiment provides a groove 311211 on the first groove wall 31121, and one end of the spring 312 is installed in the groove 311211, so that the spring 312 is constrained by the groove wall of the groove 311211, so that the spring 312 can be always limited to the groove 311211, so that the electric drum 1000 can be used stably for a long time.

[0037] refer to Figure 3-Figure 6 In one embodiment, the clutch 300 further includes a blocking piece 320 , and blocking pieces 320 are installed on both sides of the rotating wheel 311 in the axial direction, and the blocking pieces 320 are used to shield both sides of the mounting groove 3112 in the axial direction of the roller.

[0038] Specifically, when the baffle 320 is not provided, the roller 313 lacks constraints in the axial direction of the rotating wheel 311, and the roller 313 is easily displaced and deviates from the preset assembly position, resulting in a decrease in the performance of the electric drum 1000. When the displacement is too large, it will also cause the rotating assembly 310 to fail. In order to solve this technical problem, the clutch 300 of this embodiment is also provided with a baffle 320, and baffles 320 are installed on both sides of the axial direction of the rotating wheel 311. The baffle 320 can be used to shield the two sides of the mounting groove 3112 in the axial direction of the roller. Because the roller 313 is installed in the mounting groove 3112, the baffle 320 can shield the roller 313 in the axial direction of the rotating wheel 311, reducing the probability of the roller 313 being displaced, so that the electric drum 1000 can be used stably for a long time.

[0039] refer to Figure 3-Figure 5 In a specific embodiment, the roller 313 is provided with a guide shaft 3131, the guide shaft 3131 is located in the axial direction of the roller 313, and the blocking piece 320 is provided with a strip-shaped sliding hole 321. The strip-shaped sliding hole 321 extends along the spacing direction between the roller 313 and the first groove wall 31121, and the guide shaft 3131 is penetrated by the strip-shaped sliding hole 321.

[0040] Specifically, after the guide shaft 3131 on the roller 313 is inserted into the strip sliding hole 321, the strip sliding hole 321 will constrain the moving path of the guide shaft 3131, so that the guide shaft 3131 can only move along the strip sliding hole 321. It can be seen that the strip sliding hole 321 cooperates with the guide shaft 3131 on the roller 313 to constrain the moving path of the roller 313, ensuring that the roller 313 can move along the preset path, preventing the roller 313 from deviating from the preset path, and ensuring that the electric drum 1000 can be used stably for a long time.

[0041] It should be noted that the strip-shaped sliding hole 321 can be a blind hole or a through hole, which is not limited in this embodiment.

[0042] refer to Figure 6 In one embodiment, the rotating wheel 311 is provided with one of the plug block 3113 and the plug hole 322 , and the blocking piece 320 is provided with the other of the plug block 3113 and the plug hole 322 , and the plug block 3113 is plugged into the plug hole 322 .

[0043] Specifically, the baffle 320 can be directly set on the rotating wheel 311 by bonding, welding, etc. to achieve the connection between the baffle 320 and the rotating wheel 311. However, during bonding and welding, the baffle 320 and the rotating wheel 311 must be aligned very accurately. In the absence of an alignment structure, it is very difficult to accurately align the baffle 320 and the rotating wheel 311, so that the assembly difficulty is relatively high. By implementing this embodiment, the baffle 320 and the rotating wheel 311 can be quickly aligned and assembled by using the plug block 3113 and the socket 322. Furthermore, the plug block 3113 and the socket 322 can be interference-fitted, so that after the socket 322 is inserted into the plug block 3113, the baffle 320 will be fixed to the rotating wheel 311.

[0044] refer to Figure 6 In a specific embodiment, the insert block 3113 is disposed at the center of the rotating wheel 311 , and the insert hole 322 is disposed at the center of the blocking piece 320 .

[0045] Specifically, compared with the embodiment in which the plug block 3113 is arranged at the edge of the rotating wheel 311 and the hole 322 is arranged at the edge of the baffle 320, the plug block 3113 is arranged at the center of the rotating wheel 311 and the hole 322 is arranged at the center of the baffle 320, which is beneficial to improving the assembly stability of the rotating wheel 311 and the baffle 320.

[0046] refer to Figure 4 In one embodiment, two springs 312 are disposed in each mounting groove 3112 , and the two springs 312 are spaced apart in the axial direction of the rotating wheel 311 .

[0047] On the one hand, the two springs 312 can provide better support for the roller 313; on the other hand, the two springs 312 can transmit force and torque more evenly, improve transmission efficiency, and reduce energy loss.

[0048] refer to Figure 3 In one embodiment, two rotating components 310 are provided, wherein in one rotating component 310 , the first groove wall 31121 is arranged in the clockwise direction of the second groove wall 31122 , and wherein in the other rotating component 310 , the first groove wall 31121 is arranged in the counterclockwise direction of the second groove wall 31122 .

[0049] Specifically, the rotating assembly 310 can drive the drum body 100 to rotate only when the second groove wall 31122 rotates toward the first groove wall 31121, and the rotating assembly 310 will not drive the drum body 100 to rotate when the first groove wall 31121 rotates toward the second groove wall 31122. Therefore, when only one rotating assembly 310 is set, the drum body 100 can only rotate in one direction and cannot be adapted to round-trip transportation or other application scenarios that require the drum body 100 to rotate in both directions.

[0050] In the present embodiment, two rotating components 310 are provided, and in the two rotating components 310, the first groove wall 31121 and the second groove wall 31122 are provided at opposite positions. Therefore, after the present embodiment is implemented, no matter the clutch 300 rotates clockwise or counterclockwise, there is a rotating component 310 that can drive the drum body 100 to rotate, so that the electric drum 1000 can adapt to the application scenario that requires the drum body 100 to rotate in both directions.

[0051] refer to Figure 3 , Figure 6 In the specific embodiment, only one baffle 320 is disposed between the two rotating components 310, that is, the two rotating components 310 are provided with three baffles 320 in total, wherein two baffles 320 are disposed on the sides of the two rotating components 310 that are away from each other, and another baffle 320 is disposed between the two rotating components 310 for use by the two rotating components 310. This not only saves one baffle plate and reduces production costs, but also reduces the volume of the clutch 300 and increases the compactness of the structure.

[0052] In one embodiment, the electric drum 1000 further includes a reducer (not shown in the figure), and the motor 200 is connected to the rotating assembly 310 via the reducer.

[0053] Specifically, after the reducer is provided, the high-speed rotation of the motor 200 can be converted into a lower-speed output and the output torque can be increased, so that the output speed and torque are more suitable for specific applications.

[0054] In a specific embodiment, the reducer is a planetary gear reducer because the planetary gear reducer has a relatively compact structure and can provide high torque output in a limited space, and is suitable for application scenarios with limited space such as the electric drum 1000. In addition, the planetary gear reducer has a high transmission efficiency, which can reduce energy loss and improve efficiency when transmitting power.

[0055] In one embodiment, the motor 200 is a brushless motor.

[0056] Firstly, the reason for using a brushless motor is that it does not generate sparks like a brushless motor when it is running, so the interference of sparks on remote control radio equipment can be reduced.

[0057] Secondly, the reason for using a brushless motor is that it produces less noise when running.

[0058] Thirdly, the reason for using brushless motors is that they have low maintenance costs and long service life.

[0059] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. An electric drum with a clutch, characterized in that: include: Drum body; A motor installed inside the drum body; A clutch, comprising a rotating assembly installed in the drum body, the rotating assembly comprising a rotating wheel, a spring and a roller; the axial direction of the rotating wheel is the same as the axial direction of the drum body, the motor is connected to the rotating wheel to drive the rotating wheel to rotate, and a mounting groove is provided on the outer peripheral wall of the rotating wheel, the mounting groove comprises a first groove wall and a second groove wall; the first groove wall is connected to the outer peripheral wall and extends in a direction close to the center position of the rotating wheel, the second groove wall is connected to the outer peripheral wall and a side of the first groove wall away from the outer peripheral wall, and the second groove wall is vertically arranged to the first groove wall; the roller is installed in the mounting groove and is spaced apart from the first groove wall, the spring is installed between the roller and the first groove wall, and the spring is used to drive the roller to squeeze the inner wall of the drum body.

2. The electric drum with clutch according to claim 1, characterized in that: There are a plurality of the mounting grooves, which are evenly arranged on the circumference of the rotating wheel, and there are a plurality of the springs and the rollers correspondingly arranged.

3. The electric drum with clutch according to claim 2, characterized in that: A groove is provided on the first groove wall, and one end of the spring is installed in the groove.

4. The electric drum with clutch according to claim 2, characterized in that: The clutch further comprises a blocking plate, which is mounted on both sides of the rotating wheel in the axial direction, and is used to shield the mounting groove on both sides of the rotating wheel in the axial direction.

5. The electric drum with clutch according to claim 4, characterized in that: The roller is provided with a guide shaft, and the guide shaft is located in the axial direction of the roller; the baffle is provided with a strip-shaped sliding hole, and the strip-shaped sliding hole extends along the spacing direction between the roller and the first groove wall, and the guide shaft passes through the strip-shaped sliding hole.

6. The electric drum with clutch according to claim 4, characterized in that: The rotating wheel is provided with one of an insert block and an insert hole, the blocking piece is provided with the other of the insert block and the insert hole, and the insert block is inserted into the insert hole.

7. The electric drum with clutch according to claim 6, characterized in that: The insert block is arranged at the center position of the rotating wheel, and the insert hole is arranged at the center position of the blocking piece.

8. The electric drum with clutch according to claim 2, characterized in that: Two springs are arranged in each installation groove, and the two springs are arranged at intervals in the axial direction of the rotating wheel.

9. The electric drum with clutch according to any one of claims 1 to 8, characterized in that: There are two rotating components, in one of which the first groove wall is arranged in the clockwise direction of the second groove wall; in the other rotating component, the first groove wall is arranged in the counterclockwise direction of the second groove wall.

10. The electric drum with clutch according to any one of claims 1 to 8, characterized in that: The motor is a brushless motor.

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