CN204794537U - Wheelchair motors - Google Patents

Abstract

The utility model discloses a wheelchair motor, which comprises a mounting part used for mounting with wheels, the mounting part is fixed at one end of the motor shell, the motor shell is put into the inner tube of the wheel hub, a bearing is installed in the inner tube, and the inner ring of the bearing is fixed. On the installation platform of the electric brake, the tail end output shaft of the motor is connected to the electric brake, the motor is put into the motor casing and the front output shaft passes through the transmission hole of the motor casing, the electric brake is put into the motor casing and closed The open end of the motor casing, the motor casing is put into the inner cylinder, and the output shaft at the front end is provided with a tooth column that meshes with the first-stage transmission gear of the chain; one end of the first-stage transmission tooth of the chain is inserted into the installation groove of the motor case Inside, the shaft part at the other end is assembled with the connecting hole of the connecting plate, and the connecting plate is also equipped with a cover body, which is covered on the output rod at the front end and a connecting bearing is installed on the closed end, and the connecting bearing is installed in the switching shell. In the hole, a gear ring is installed in the switch case, the inner surface of the gear ring is provided with a gear ring part, and the outer surface is provided with a card slot, and the secondary transmission teeth are meshed with the gear ring part for transmission.

Description

A wheelchair motor

technical field

The utility model relates to a motor, in particular to a motor for wheelchairs.

Background technique

At present, the single drive is single and can only be driven by a single motor. The product is large in size and heavy in weight. On the one hand, there are also inconvenient operations or unsatisfactory braking effects.

After research, the inventor found that there is no electromagnetic brake installed in the motors used in wheelchairs at present. Electromagnetic brakes have the advantages of smooth braking, good braking effect, especially the sudden braking effect is much better than ordinary brakes.

Furthermore, in order to obtain a good low-speed torque, the existing gearless transmission drive motor generally adopts a large-diameter outer rotor low-speed motor, which has a huge structure, unstable performance at ultra-low speed, low starting torque, large starting current, and high cost. .

Finally, at present, for electric wheelchairs, electric vehicles and related driving products, their motors, batteries, controllers and other components are all independent separate components, scattered in different parts of the car body, and connected to the controller with cables to occupy space Large, complex results, high failure rate, inconvenient handling and transportation.

Utility model content

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide a product that effectively reduces the weight of the product, improves the safety and output torque of the product, realizes easy control and improves the load stability of the product at the same time. A wheelchair motor.

In order to achieve the above object, the utility model provides a wheelchair motor, which includes a mounting part for mounting with the wheel, the mounting part is fixed at one end of the motor shell, and the motor shell is put into the inner cylinder of the wheel hub. A bearing is installed in the inner cylinder, and the inner ring of the bearing is fixed on the installation platform of the electric brake. The tail end output shaft of the motor is connected to the electric brake, and the motor is put into the motor housing. And the front output shaft passes through the transmission hole of the motor casing, the electric brake is put into the motor casing and the opening end of the motor casing is closed, the motor casing is put into the inner cylinder, and the front output shaft is opened with a The gear column meshing with the first-stage transmission teeth of the connecting teeth; one end of the first-stage transmission teeth of the connecting teeth is installed in the installation groove of the motor casing, and the platform shaft part at the other end is assembled with the connecting hole of the connecting plate. The connecting plate is also provided with a cover body, the cover body is covered on the front output rod and the closed end is provided with a connecting bearing, the connecting bearing is put into the installation hole of the switching shell, and the switching shell is A gear ring is installed, and the inner surface of the gear ring is provided with a gear ring part, and the outer surface is provided with a card slot, and the secondary transmission teeth are meshed with the gear ring part for transmission.

Further, there is a chute around the outer side of the switch case, and at least one card hole is opened at the bottom of the chute, and the clamp head of the switch arm is inserted into the card hole to cooperate with the card slot, and the switch arm is connected through the hinge It is hinged with the side wall of the chute, and the end of the switching arm away from the chuck is provided with a switching protrusion. A spring installation groove is opened in the switching protrusion, and a spring is installed in the spring installation groove.

Further, the switching post passes through the assembly hole of the switching ring to install the switching ring on the side of the switching case, and the small end of the switching post cooperates with the chute; the inner side of the switching post is provided with a mating surface that cooperates with the switching arm.

Further, the matching surface includes an inner inclined surface and a relief groove matched with the outer surface of the switching arm, and the opening end of the switching shell is connected with the opening end of the inner cylinder to close the inner cylinder.

The beneficial effects of the utility model are:

The utility model has a simple and compact structure, and the overall volume is reduced by nearly half compared with the driver mentioned in the background art, and the performance is not affected in any way.

The utility model drives the wheel hub to rotate through the motor and the gear train, thereby effectively reducing the volume of the product, increasing the driving torque, and realizing product integration and modularization. The combination of electromagnetic brake and stop lock further improves the safety and easy handling of the product.

Description of drawings

Fig. 1 is a structural schematic diagram of a specific embodiment of a wheelchair motor of the present invention.

Fig. 2 is an exploded view of a specific embodiment of a wheelchair motor of the present invention.

Fig. 3 is a front view of a specific embodiment of a wheelchair motor of the present invention.

Fig. 4 is a left view of a specific embodiment of a wheelchair motor of the present invention.

Fig. 5 is a sectional view of F-F in Fig. 3 .

Fig. 6 is a sectional view of A-A in Fig. 4 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Referring to Fig. 1 to Fig. 6, a wheelchair motor includes a mounting part 1 for mounting with a wheel, the mounting part 1 is fixed at one end of the motor housing 6, and the motor housing 6 is loaded into the hub 2 In the cylinder 21, a bearing 3 is installed in the inner cylinder 21, and the inner ring of the bearing 3 is fixed on the installation platform 41 of the electric brake 4, and the tail end output shaft of the motor 5 is connected to the electric brake 4 51, the motor 5 is put into the motor casing 6 and the front output shaft 52 passes through the transmission hole 62 of the motor casing 6, the electric brake 4 is put into the motor casing 6 and the opening end of the motor casing 6 is closed, The motor casing 6 is put into the inner cylinder 21, and the front output shaft 52 is provided with a tooth column meshing with the first-stage transmission tooth 71 of the connecting tooth 7;

One end of the first-stage transmission gear 71 of the connecting gear 7 is put into the installation groove 61 of the motor housing 6, and the platform shaft part 73 at the other end is assembled with the connecting hole 81 of the connecting plate 8, and the connecting plate 8 is also A cover body 82 is provided, and the cover body 82 is covered on the front end output rod 52 and a connecting bearing 821 is provided on the closed end. A gear ring 9 is installed inside the shell 10. The inner surface of the gear ring 9 is provided with a gear ring part 92, and the outer surface is provided with a card slot 91. The secondary transmission gear 72 is engaged with the gear ring part 92 for transmission. The switching shell There is a chute 101 on the outside of 10, and at least one card hole 102 is opened at the bottom of the chute 101. The card head 1101 of the switch arm 11 is inserted into the card hole 102 to cooperate with the card groove 91. The switch arm 11 The hinge 15 is hinged with the side wall of the chute 101, and the end of the switching arm 11 away from the chuck 1101 is provided with a switching protrusion 1102, and a spring mounting groove 1103 is opened in the switching protrusion 1102, and the spring mounting groove 1103 is A spring 12 is installed;

The switching column 14 passes through the assembly hole of the switching ring 13 to install the switching ring 13 on the side of the switching shell 10, and the small end 1401 of the switching column 14 cooperates with the chute 101;

The inner side of the switching column 14 is provided with a mating surface 1301 that cooperates with the switching arm 11. The said mating surface 1301 includes an inner slope 13011 and a relief groove 13012 that cooperate with the outer surface of the switching arm 11. The switching shell 10 has an opening The end is connected with the open end of the inner cylinder 21 to close the inner cylinder 21.

When in use, the motor 5 drives the output shaft to rotate, and the front end output shaft 52 tooth column part meshes with the primary transmission tooth 71 to drive the connecting gear 7 to rotate, and the secondary transmission tooth 72 of the connecting tooth 7 meshes with the gear ring part 92, because the gear ring 9 Fixed under the action of the chuck, the secondary transmission gear 72 just drives the ring gear 9 to rotate, thus driving the wheel hub to rotate, and then the wheel hub drives the wheel to rotate.

When you need to switch to manual mode, you only need to focus on the switching column 14, so that the switching column 14 drives the switching ring 13 to turn to the right (see Figure 6). When the switching ring 13 is driven, the inner slope 13011 will gradually press the switching protrusion 1102 The switching arm 11 is rotated around the hinge 15, and the chuck 1101 of the switching arm 15 will gradually disengage from the slot 91 during the rotation process. After completely disengaging, the gear ring 9 will rotate in the switching housing, and the power cannot be transmitted to the hub. Or the wheelchair can be manually operated.

The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (4)

1. a wheel chair motor, comprise the mounting portion for installing with wheel, it is characterized in that: described mounting portion is fixed on motor casing one end, described motor casing loads in the inner core of wheel hub, in described inner core, bearing is installed, described bearing inner race is fixed on the erecting bed that electricity stops, described electricity is connected with the tail end output shaft of motor in stopping, described motor loads in motor casing and front end output shaft passes the driving hole of motor casing, electricity is stopped and is loaded in motor casing and the openend of closed motor casing, described motor casing loads in inner core, described front end output shaft has the tooth post engaged with the primary transmission tooth connecting tooth, primary transmission tooth one end of described company's tooth loads in the mounting groove of motor casing, the platform shaft portion of the other end and the company hole of connecting plate are assembled, described connecting plate is also provided with cover body, described cover body covers on the take-off lever of front end and blind end is provided with connection bearing, described connection bearing loads in the installing hole switching shell, and be provided with ring gear in described switching shell, described ring gear medial surface is provided with toothed ring section, lateral surface is provided with draw-in groove, secondary transmission tooth and toothed ring section engaged transmission.

2. a kind of wheel chair motor as claimed in claim 1, it is characterized in that: outside described switching shell, have a circle chute, a hole clipping is also at least had bottom described chute, the dop of operating rocker loads in hole clipping and coordinates with draw-in groove, described operating rocker by hinge and chute wall hinged, and operating rocker is provided with switching projection away from dop one end, has spring fitting groove, be provided with spring in described spring fitting groove in described switching projection.

3. a kind of wheel chair motor as claimed in claim 2, is characterized in that: switch post and be arranged on by switching circle on switching shell-side face through the pilot hole switching circle, and the small end switching post coordinates with chute; The mating surface coordinated with operating rocker is provided with inside described switching post.

4. a kind of wheel chair motor as claimed in claim 3, is characterized in that: described mating surface comprise to coordinate with operating rocker lateral surface in inclined-plane and slot to make way, described switching shell opener end is connected with inner core openend, closes inner core.