Driving device with clutch function

Abstract

The driving device with the clutch function is suitable for the field of hand-push equipment and comprises two hubs, a motor arranged between the two hubs and used for driving the hubs and a control box electrically connected with the motor, a speed reducer is arranged on an output shaft of the motor and connected with the hubs through a clutch unit, and the clutch unit is arranged on the output shaft of the motor. A connector connected with a frame is arranged on the speed reducer, and the frame is connected with a push handle; the structure is reasonable, the design is novel, the clutch unit is additionally arranged between the speed reducer and the hub, low-speed safe running of motor driving is met, and the labor-saving requirement of manual driving is met; the fixing rods with different lengths can be matched with frames with different widths, existing manual equipment can be modified into motor drive under the condition that basic configuration is not changed, various requirements of users are met, and high adaptability of the device is highlighted. Functions of the USB interface can be expanded according to requirements, and personalized requirements are met; and the LED lamp strip ensures the safe driving of the user at night.

Description

Driving device with clutch function TECHNICAL FIELD

[0001] The utility model relates to the field of hand -pushing equipment, specifically is driving device with clutch function. BACKGROUND

[0002] People go out for travel, shopping or shopping will carry the folding handcart, can put all the articles carried on the body, also can be used for the baby of different growth stages to ride, the hand -pushed wheelchair is also set up for the convenience of people who are not convenient to travel safely.

[0003] At present, most of the hand -pushed equipment such as cart, wheelchair is manually driven, and the driving speed is slow, and people will be very tired for a long time to push, in order to save the effort, the driving mode is changed from manual driving to motor driving, the motor adopts the wheel hub motor that the wheel hub and motor are integrated, the input power and the rotational speed, torque of the wheel hub motor are linearly related, that is, the greater the power, the faster the speed, the greater the torque.Hand -pushed equipment generally requires low-speed travel, however, the torque is also reduced at low speed. However, the hand -pushed device needs low speed and high torque when turning or climbing. Therefore, the wheel hub motor cannot meet the requirements.

[0004] In order to meet the requirements of low speed and high torque, the motor adopts the gear motor combined with the speed reducer, and the speed reducer presents low speed and high torque when driving by electricity, which meets the needs of low-speed safe travel of hand -pushed equipment. However, when the battery is out of power, the operator drives the wheel hub while overcoming the large torque of the motor, at this time, the hand -pushed device will be more tired.

[0005] It is necessary to develop a kind of electric low-speed large-torque travel, manual mode operator will not be too tired driving structure. INVENTION CONTENTS

[0006] The utility model needs to solve the technical problem to provide driving device with clutch function, realizes low speed, large torque safe travel when motor drives, the wheel hub is separated from the motor when manually driving, without overcoming the large torque of the motor, only need to drive the wheel hub.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0008] The utility model discloses a two wheel hubs, the motor of driving wheel hub set between two wheel hubs and the control box of electric connection with motor, the output shaft of motor is equipped with the speed reducer, the speed reducer is connected with wheel hub through clutch unit, the joint of being connected with the frame is equipped on the speed reducer, and the frame is connected with push handle.

[0009] Further, the clutch unit comprises a hub connecting end fixed with the hub and a motor connecting end connected with the hub connecting end, and the motor connecting end is fixedly arranged on the output shaft and connected with the speed reducer.

[0010] Further, the middle part of the motor connecting end is provided with a matching area corresponding to the output shaft, and the motor connecting end is clamped on the positioning clamping plate of the hub connecting end and corresponds to the mounting area in the middle part of the positioning clamping plate.

[0011] Further, the motor connecting end is uniformly distributed with convex edges in the circumferential direction, and the convex edges are matched and connected with the grooves arranged on the mounting area to clamp the hub connecting end and the motor connecting end.

[0012] Further, the positioning clamping plate between the grooves is provided with a through hole with an internal thread connected with the motor connecting end, the through hole corresponds to the positioning groove arranged on the motor connecting end, a spherical positioning bolt penetrating through the through hole is matched with the positioning groove, and the hub connecting end and the motor connecting end are fixed.

[0013] Further, the positioning clamping plate is fixed with the hub cover through a connecting rod, an end of the connecting rod is provided with a hole with an internal thread, the hole corresponds to a fixing hole arranged on the hub cover, a fixing bolt penetrating through the fixing hole and the hole fixes the hub cover and the connecting rod.

[0014] Further, the motor connecting end is provided with a rotating groove corresponding to the ball head of the spherical positioning bolt, and the rotating groove is arranged on the motor connecting end in the circumferential direction.

[0015] Further, the control box is fixedly connected with the battery, the control box is fixedly arranged on the fixing rod, and the two ends of the fixing rod are fixed with the motor.

[0016] Further, the control box is provided with a USB interface and a switch hole.

[0017] Further, the control box is provided with a lamp strip groove for placing an LED lamp.

[0018] Due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0019] The utility model discloses reasonable structure, novel design has added the clutch unit between the speed reducer and the wheel hub, not only can satisfy the safe travel of low -speed, high -torque, high endurance of motor drive process, can also satisfy the requirement of manual drive without overcoming motor big torque, labour -saving, and the speed reducer fixedly arranged on the fixed link that cooperates with the wheel hub, and the fixed link of different length can be adapted to the frame of different width, guaranteeing safe and convenient while realizing the high adaptability of device, under the condition of not changing basic configuration, people can also refit the existing manual drive hand -push equipment into motor drive, satisfy the various needs of user, the setting of USB interface can also extend the function according to the demand of user, satisfy the individualization requirement, the setting of LED lamp area can guarantee the safe travel of user night.

[0020] In summary, the utility model is complete in function, high in practicality, opens new mode for the healthy development of hand -push equipment, points out new direction, and it is necessary to promote. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a three-dimensional structure schematic diagram of the utility model;

[0022] Fig. 2 is an exploded structure schematic diagram of the utility model;

[0023] Fig. 3 is a structure schematic diagram of the speed reducer and the wheel hub connection state of the utility model;

[0024] Fig. 4 is the A-A cross section structure schematic diagram of Fig. 3 of the utility model;

[0025] Fig. 5 is a structure schematic diagram of the speed reducer and the wheel hub separation state of the utility model;

[0026] Fig. 6 is the A-A cross section structure schematic diagram of Fig. 5 of the utility model;

[0027] Fig. 7 is the exploded structure schematic diagram of the clutch unit of the utility model;

[0028] Fig. 8 is the rear view structure schematic diagram of the wheel hub connection end of the utility model;

[0029] Fig. 9 is the front view structure schematic diagram of the wheel hub connection end of the utility model.

[0030] Among them, 1, fixed link, 2, control box, 2-1, USB interface, 2-2, switch hole, 3, motor, 4, joint, 5, wheel hub, 6, wheel hub cover, 6-1, fixed hole, 7, speed reducer, 8, battery, 9, wheel hub connection end, 9-1, connecting rod, 9-2, through -hole, 9-3, installation area, 9-4, positioning clamping plate, 9-5, recess, 9-6, hole, 10, motor connection end, 10-1, rotary groove, 10-2, cooperation area, 10-3, convex edge, 10-4, positioning groove, 11, output shaft, 12, spherical positioning bolt. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in combination with the embodiments as follows:

[0032] The driving device with clutch function, as shown in FIG. 1-9, comprises two wheel hubs 5, a motor 3 arranged between the two wheel hubs 5 to drive the wheel hubs 5 to rotate, and a control box 2 electrically connected with the motor 3. The output end of the control box 2 is connected with the motor 3, and the input end is wirelessly connected with a remote controller. People can operate the motor 3 through the remote controller to realize the functions of forward rotation or reverse rotation, acceleration or deceleration, left rotation or right rotation, etc. of the wheel hubs 5.

[0033] As shown in FIG. 1 and FIG. 2, a USB interface 2-1 and a switch hole 2-2 are arranged on the control box 2. The USB interface 2-1 can be used for program development and can also be used for charging a mobile phone or other electric equipment. A switch is arranged at the switch hole 2-2. The switch is connected with a controller mainboard in the control box 2. The controller mainboard can be turned on or off by operating the switch.

[0034] The control box 2 is connected with a battery 8. The battery 8 supplies power to the electric equipment such as the control box 2 and the motor 3. A reducer 7 is arranged on the output shaft 11 of the motor 3. The motor 3 and the reducer 7 are combined to form a gear motor. The motor 3 has the functions of high rotation speed and large torque. The reducer 7 uses mechanical structures with different gear ratios to effectively reduce the rotation speed of the motor 3, thereby playing the function of speed reduction and torque increase, and ensuring the low-speed and safe travel of the hand-pushed equipment such as a cart and a wheelchair.

[0035] A joint 4 connected with a frame is arranged on the shell of the reducer 7. Under the action of the control box 2, the motor 3 drives the wheel hub 5 to rotate at low speed through the reducer 7. The wheel hub 5 drives the entire frame to move safely and at low speed. The frame is connected with a push handle. The frame is moved by pushing the handle. In this way, during the travel of the frame, the wheel hub 5 is driven to rotate by the gear motor. People can only hold the handle to control the moving direction of the frame.

[0036] However, in the case that the battery 8 has insufficient power, the motor 3 cannot drive the wheel hub 5 to rotate. People need to drive the wheel hub 5 connected with the frame to rotate by pushing the handle with force. Since the wheel hub 5 is connected with the reducer 7 and the motor 3, people not only need to push the frame forward with force, but also need to overcome the large torque of the gear motor and need to control the travel direction of the frame during the pushing process. Therefore, the operator of the hand-pushed cart needs to drive the wheel hub 5 to rotate with force and overcome the large torque of the motor 3 with force while controlling the direction, which is certainly laborious. When the frame contains heavy objects, the person pushing the cart will feel more tired and exhausted.

[0037] In order to achieve the above purpose, a clutch unit is arranged between the wheel hub 5 and the speed reducer 7. When the battery 8 is insufficient, the wheel hub 5 is manually separated from the speed reducer 7, so that the wheel hub 5 is separated from the gear motor, as shown in Figures 4 and 5. During the process of manually driving the push handle, it is not necessary to overcome the large torque of the gear motor, and it is only necessary to drive the wheel hub 5 to rotate by force while controlling the direction. It can be seen that, by arranging the clutch unit, the user can flexibly select the driving mode of the wheel hub 5. In the motor driving mode, the wheel hub 5 is connected with the gear motor, and the wheel hub 5 is driven to rotate by the gear motor. In the manual driving mode, the wheel hub 5 is separated from the gear motor, and the wheel hub 5 is manually driven, which is convenient for the user to travel.

[0038] In order to facilitate the separation and connection of the wheel hub 5 and the gear motor, a clutch unit is arranged between the speed reducer 7 and the wheel hub 5. As shown in Figures 3-9, the clutch unit comprises a wheel hub connecting end 9 fixed with the wheel hub 5 and a motor connecting end 10 fixedly arranged on the output shaft 11 and connected with the speed reducer 7, and the wheel hub connecting end 9 is connected with the motor connecting end 10 in a matched manner. In the motor mode, the speed reducer 7 drives the wheel hub 5 to act through the clutch unit.

[0039] As shown in Figure 7, the middle part of the motor connecting end 10 is provided with a matching area 10-2 corresponding to the output shaft 11, the motor connecting end 10 is fixed with the output shaft 11 through the matching area 10-2, the motor connecting end 10 is clamped on the positioning clamping plate 9-4 of the wheel hub connecting end 9 and corresponds to the mounting area 9-3 in the middle part of the positioning clamping plate 9-4, the motor connecting end 10 is uniformly distributed with convex edges 10-3 in the circumferential direction, and the convex edges 10-3 are matched with the grooves 9-5 arranged on the mounting area 9-3 to clamp the wheel hub connecting end 9 and the motor connecting end 10.

[0040] The positioning clamping plate 9-4 is provided with a through hole 9-2 connected with the motor connecting end 10, the through hole 9-2 is arranged between adjacent two grooves 9-5, the through hole 9-2 corresponds to a positioning groove 10-4 arranged on the motor connecting end 10, the positioning groove 10-4 is arranged between adjacent two convex edges 10-3, a spherical positioning bolt 12 passing through the through hole 9-2 is matched with the positioning groove 10-4 to fix the wheel hub connecting end 9 and the motor connecting end 10. The inner wall of the through hole 9-2 is provided with an internal thread matched with the spherical positioning bolt 12, the surface of the spherical positioning bolt 12 is provided with an external thread matched with the internal thread, the spherical positioning bolt 12 is matched and connected with the through hole 9-2 to fix the wheel hub connecting end 9 and the motor connecting end 10 together. One end of the spherical positioning bolt 12 connected with the positioning groove 10-4 is a spherical body provided with a spherical surface, and the spherical body is matched with the positioning groove 10-4. During the process that the gear motor drives the wheel hub 5 to rotate, the spherical body rotates in the positioning groove 10-4 to play a positioning role, and the wheel hub connecting end 9 and the motor connecting end 10 are connected together.

[0041] When the recess 9-5 is matched with the convex rib 10-3, and the spherical positioning bolt 12 passing through the through hole 9-2 is matched with the positioning groove 10-4, the hub connecting end 9 and the motor connecting end 10 are in a clamping connection state, at this time, the hub 5 and the gear motor are in a motor-driven connection state, as shown in FIG. 3 and FIG. 4.

[0042] As shown in FIG. 5, FIG. 6 and FIG. 8, the positioning card 9-4 is fixed with the hub cover 6 through the connecting rod 9-1, the end of the connecting rod 9-1 is provided with a threaded hole 9-6, the threaded hole 9-6 corresponds to the fixing hole 6-1 provided on the hub 6, and the hub cover 6 and the connecting rod 9-1 are fixed through the fixing bolt passing through the fixing hole 6-1 and the hole 9-6. During the driving of the gear motor, the front end of the hub connecting end 9 is fixed with the motor connecting end 10 fixed on the output shaft 11 of the motor 3 through the spherical positioning bolt 12, and the rear end is fixed with the connecting rod 9-1 and the hub cover 6 through the fixing bolt, so as to ensure that the hub 5 forms a firm connection with the gear motor through the clutch unit.

[0043] As shown in FIG. 7, the motor connecting end 10 is provided with a rotating groove 10-1 corresponding to the ball head of the spherical positioning bolt 12. When the battery 8 is insufficient, in order to avoid overcoming the large torque of the motor 3, the hub cover 6 is pulled out, the hub cover 6 drives the hub connecting end 9 to move outward, at the same time, the balls of the four spherical positioning bolts 12 move outward from the positioning groove 10-4 to the rotating groove 10-1, at this time, the recess 9-5 is separated from the convex rib 10-3, the ball of the spherical positioning bolt 12 is matched with the rotating groove 10-1, at this time, the ball in the rotating groove 10-1 plays a role of bearing, as shown in FIG. 5 and FIG. 6, the hub 5 is connected with the connecting rod 9-1, the ball of the spherical positioning bolt 12 is matched with the rotating groove 10-1, the recess 9-5 on the positioning card 9-4 is separated from the convex rib 10-3 on the motor connecting end 10, the hub connecting end 9 is separated from the motor connecting end 10, the positioning card 9-4 is positioned at the rotating groove 10-1, and the hub 5 is separated from the gear motor. At this time, it is in a manual driving mode, during the process of pushing the handle to drive the hub 5 to rotate, the large torque of the gear motor does not need to be overcome, and the translation of the hand-push device can be realized.

[0044] The control box 2 and the battery 8 are fixedly connected together, the control box 2 is fixedly arranged on the fixing rod 1, and the two ends of the fixing rod 1 are fixed with the motor 3. The fixing rod 1 can be selected to have a proper length according to the width of the frame, so that fixing rods 1 with different lengths can be adapted to frames with different widths. It can be matched with newly produced frames, can be matched with frames that have been sold, and can also be retrofitted on original frames. Users can also flexibly select the length of the fixing rod 1 according to the width of the frame, and can also assemble the driving device on the original manually driven frame to retrofit it into a motor-driven mode with a clutch function. The high adaptability of the setting can meet the various needs of users.

[0045] The lower part of the control box 2 is provided with a lamp strip groove for placing an LED lamp, the LED lamp is connected with the control box 2, and the opening and extinguishing of the LED lamp can be realized.

[0046] In summary, in order to meet the use of users, the device is provided with a drive mode of manual and motor drive integrated for users to select. Under the action of the gear motor, the motor drive meets the requirements of high torque, high endurance and low-speed safe driving; at the same time, the fixed rod 1 with different lengths can be adapted to the frames with different widths, the high adaptability selection of users is met without changing the basic configuration, and various practical functions can be equipped according to the individual requirements of users through the expansion function of the USB interface 2-1.

Claims

1. A driving device with a clutch function, characterized in that: The invention comprises two wheel hubs (5), a motor (3) arranged between the two wheel hubs (5) for driving the wheel hubs (5), and a control box (2) electrically connected to the motor (3); a reducer (7) is provided on the output shaft (11) of the motor (3); the reducer (7) is connected to the wheel hubs (5) via a clutch unit; the reducer (7) is provided with a joint (4) connected to a vehicle frame; and the vehicle frame is connected to a push handle.

2. The driving device with clutch function according to claim 1, characterized in that: The clutch unit comprises a hub connection end (9) fixed to the hub (5) and a motor connection end (10) cooperatively connected to the hub connection end (9); the motor connection end (10) is fixedly arranged on the output shaft (11) and connected to the reducer (7).

3. The driving device with clutch function according to claim 2, characterized in that: A matching area (10-2) corresponding to the output shaft (11) is provided in the middle of the motor connection end (10), and the motor connection end (10) is clamped on the positioning card (9-4) of the hub connection end (9) and corresponds to the installation area (9-3) in the middle of the positioning card (9-4).

4. The driving device with clutch function according to claim 3, characterized in that: The motor connection end (10) is uniformly provided with ridges (10-3) along the circumferential direction, and the ridges (10-3) are engaged and connected with grooves (9-5) provided on the installation area (9-3), thereby clamping the hub connection end (9) and the motor connection end (10).

5. The driving device with clutch function according to claim 4, characterized in that: A through hole (9-2) with an internal thread connected to the motor connection end (10) is provided on the positioning clamping plate (9-4) between the grooves (9-5); the through hole (9-2) corresponds to the positioning groove (10-4) provided on the motor connection end (10); a spherical positioning bolt (12) passing through the through hole (9-2) cooperates with the positioning groove (10-4) to fix the hub connection end (9) and the motor connection end (10).

6. The driving device with clutch function according to claim 5, characterized in that: The positioning clamping plate (9-4) is fixed to the hub cover (6) via a connecting rod (9-1); a hole (9-6) with an internal thread is provided at the end of the connecting rod (9-1); the hole (9-6) corresponds to a fixing hole (6-1) provided on the hub cover (6); and a fixing bolt passing through the fixing hole (6-1) and the hole (9-6) fixes the hub cover (6) to the connecting rod (9-1).

7. The driving device with clutch function according to claim 4, characterized in that: A rotation groove (10-1) corresponding to the ball head of the spherical positioning bolt (12) is provided on the motor connection end (10), and the rotation groove (10-1) is circumferentially arranged on the motor connection end (10).

8. The driving device with clutch function according to any one of claims 1 to 7, characterized in that: The control box (2) is fixedly connected to the battery (8), and the control box (2) is fixedly arranged on the fixed rod (1). Both ends of the fixed rod (1) are fixed to the motor (3).

9.

9. The driving device with clutch function according to claim 8, characterized in that: The control box (2) is provided with a USB interface (2-1) and a switch hole (2-2).

10. The driving device with clutch function according to claim 9, characterized in that: A light strip groove for placing LED lights is provided below the control box (2).

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