CN212356431U

CN212356431U - Driving device

Info

Publication number: CN212356431U
Application number: CN202020748176.6U
Authority: CN
Inventors: 王江涛
Original assignee: Zhejiang Heami Machinery Co ltd
Current assignee: Zhejiang Heami Machinery Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-01-15
Anticipated expiration: 2030-05-08

Abstract

The utility model provides a driving device belongs to mechanical technical field. It has solved the unable problem of using of current drive arrangement after the outage. The outer end of an output shaft of a motor is in transmission connection with one end of a main shaft, an electromagnetic brake is in transmission connection with the other end of the main shaft, the main shaft is in transmission connection with a driven shaft through a gear mechanism, an output gear is sleeved on the driven shaft, an inner gear ring meshed with an output gear box is fixed on a roller, the main shaft can axially move relative to the output shaft, one end of the main shaft and the outer end of the output shaft can be in clutch connection, a through lock pin hole is radially formed in the outer peripheral surface of the other end of the main shaft, and the main shaft can move relative to the electromagnetic brake so that one end, provided with the. The structure solves the problem that the electric vehicle cannot move or is difficult to move under the condition of power failure.

Description

Driving device

Technical Field

The utility model belongs to the technical field of machinery, refer in particular to a drive arrangement.

Background

The driving device used for the electric pallet truck and the electric fork lift truck in the current market comprises a motor, a gear box and an electromagnetic brake, the motor is connected with the gear box and the electromagnetic brake, gears inside the gear box are engaged with gears on wheels all the time, and the wheels and the gears cannot be separated from each other when the gear box is not opened.

The conventional driving apparatus has the following disadvantages: 1. when the electric pallet truck or the electric fork lift truck breaks down, especially under the condition that the storage battery is not electrified, the electromagnetic brake cannot release the brake, at the moment, the electric pallet truck or the electric fork lift truck is in a parking brake state, the vehicle cannot move, and under the condition, roads are easily blocked, and the traffic is influenced; 2. the wheels cannot be independently rotated because the wheels and the gears cannot be disconnected, the vehicle cannot move under the condition that a storage battery of the vehicle is free of electricity, and even if the electromagnetic brake is removed, the wheels are connected with the gears and the gears are connected with the motor, so that the motor is driven to rotate when the vehicle is moved, the motor becomes a generator at the moment, resistance is formed, and the vehicle is very difficult to manually drag; 3. when the vehicle can not walk due to the failure of the electric appliance and has no maintenance value, but the mechanical parts can still be continuously used, the vehicle can only be scrapped because the vehicle can not be dragged, and the resource waste is caused.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a drive arrangement, the utility model aims to solve the technical problem that: how to solve the problem that the electric vehicle can not move or is difficult to move under the condition of power failure.

The purpose of the utility model can be realized by the following technical proposal:

a driving device comprises a driving frame, a motor, a main shaft, a driven shaft, an electromagnetic brake and a roller, wherein the motor, the main shaft, the driven shaft, the electromagnetic brake and the roller are arranged on the driving frame, the outer end of an output shaft of the motor is in transmission connection with one end of the main shaft, the electromagnetic brake is in transmission connection with the other end of the main shaft, the main shaft is in transmission connection with the driven shaft through a gear mechanism, an output gear is sleeved on the driven shaft, and an inner gear ring meshed with an output gear box is fixed on the roller.

The driving device can be assembled on an electric pallet truck or an electric fork lift truck for use, after a motor is powered on, an output shaft rotates, the output shaft drives a main shaft to rotate, the main shaft drives a driven shaft to rotate through a gear mechanism, and the driven shaft drives a gear ring to rotate through an output gear so as to drive a roller to rotate;

when the power of the electric pallet truck or the electric fork lift truck is cut off, namely, when the vehicle needs to be driven by manpower to run, the main shaft is pulled outwards along the axis direction of the main shaft, so that one end of the main shaft is separated from the outer end of the output shaft, the gear mechanism connecting the main shaft and the driven shaft is also in a separated state at the moment, the other end of the main shaft extends out of the electromagnetic brake to expose a lock pin hole, then a pin shaft is inserted into the lock pin hole, the pin shaft abuts against the electromagnetic brake to position the main shaft, the main shaft is limited to move towards the direction of the output shaft, when the vehicle is pushed by manpower, a roller rotates to drive a gear ring, an output gear and a driven shaft to rotate, so that the output shaft and the electromagnetic. When the electric pallet truck or the electric fork lift truck breaks down, particularly under the condition that the storage battery is out of power, the electric pallet truck or the electric fork lift truck can manually push the vehicle to move, so that the vehicle cannot stop on a road due to the fault to influence the road traffic, the vehicle utilization rate is greatly improved, the service life is prolonged, and the resource waste is reduced.

In the above driving device, a counterbore is formed on the outer end surface of the output shaft, and the cross section of the counterbore is elliptical; the cross section of one end of the main shaft facing the output shaft is oval, and the end can be inserted into the counter bore. Through the arrangement of the structure, after one end of the main shaft is inserted into the counter bore, the output shaft of the motor can drive the main shaft to rotate when rotating, and the structure realizes the clutching connection of the main shaft and the output shaft.

In the above driving device, the spindle is sleeved with a spring, a clamp spring groove is formed in the outer peripheral surface of the spindle, a clamp spring is arranged in the clamp spring groove, one end of the spring abuts against the clamp spring, the other end of the spring abuts against the electromagnetic brake, and the spring enables the spindle to always have a tendency of moving towards the output shaft side. Through the arrangement of the structure, when the manual mode is required to be switched to the electric mode, the pin shaft is pulled out from the lock pin hole, the main shaft moves towards the side of the output shaft under the action of the spring, so that one end of the main shaft is inserted into the counter bore, and the main shaft is in transmission connection with the output shaft.

In one of the above-described drive devices, the ring gear is fixed to the roller by a fastener.

In the above-described drive device, a tooth surface is formed on the outer peripheral surface of the main shaft in the circumferential direction, and the driven shaft is fitted with an input gear that meshes with the tooth surface. Through the arrangement of the structure, after the main shaft moves for a certain distance relative to the driven shaft along the axis direction of the main shaft, the input gear is separated from the tooth surface, the driven shaft rotates and cannot drive the main shaft to rotate, and the mode is a manual mode.

Compared with the prior art, the utility model discloses a drive arrangement has following advantage: when the electric pallet truck or the electric fork lift truck breaks down, particularly under the condition that the storage battery is out of power, the electric pallet truck or the electric fork lift truck can manually push the vehicle to move, so that the vehicle cannot stop on a road due to the fault to influence the road traffic, the vehicle utilization rate is greatly improved, the service life is prolonged, and the resource waste is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional structure of the present invention.

Fig. 3 is a schematic partial perspective view of the present invention.

Fig. 4 is a schematic diagram of a partial explosion structure of the utility model.

In the figure, 1, a driving frame; 2. a motor; 21. an output shaft; 21a, a counter bore; 3. a main shaft; 31. a lock pin hole; 32. a tooth surface; 4. a driven shaft; 5. electromagnetic braking; 6. a roller; 7. an output gear; 8. a spring; 9. a clamp spring; 10. an input gear; 11. and the inner gear ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the driving device includes a driving frame 1, a motor 2, a main shaft 3, a driven shaft 4, an electromagnetic brake 5 and a roller 6, which are arranged on the driving frame 1, wherein the outer end of an output shaft 21 of the motor 2 is in transmission connection with one end of the main shaft 3, the electromagnetic brake 5 is in transmission connection with the other end of the main shaft 3, a tooth surface 32 is arranged on the outer peripheral surface of the main shaft 3 along the circumferential direction, an input gear 10 meshed with the tooth surface 32 is sleeved on the driven shaft 4, an output gear 7 is sleeved on the driven shaft 4, an inner gear ring 11 meshed with an output gear 7 box is fixed on the roller 6, and the inner gear ring 11 is fixed on the; the main shaft 3 can move axially relative to the output shaft 21 and enables one end of the main shaft 3 to be in clutch connection with the outer end of the output shaft 21, in the embodiment, a counter bore 21a is formed in the outer end face of the output shaft 21, and the cross section of the counter bore 21a is oval; the end of the main shaft 3 facing the output shaft 21 is elliptical in cross section and is insertable into the counterbore 21 a; the outer peripheral surface of the other end of the main shaft 3 is radially provided with a through lock pin hole 31, the main shaft 3 can move relative to the electromagnetic brake 5 to enable one end, provided with the lock pin hole 31, of the main shaft 3 to extend out of the electromagnetic brake 5, the main shaft 3 is sleeved with a spring 8, the outer peripheral surface of the main shaft 3 is provided with a clamp spring groove, a clamp spring 9 is arranged in the clamp spring groove, one end of the spring 8 abuts against the clamp spring 9, the other end of the spring abuts against the electromagnetic brake 5, and the spring 8 enables the main shaft 3 to always have a tendency.

The driving device can be assembled on an electric pallet truck or an electric fork lift truck for use, after a motor 2 is electrified, an output shaft 21 rotates, the output shaft 21 drives a main shaft 3 to rotate, the main shaft 3 drives an input gear 10 to rotate, the input gear 10 drives a driven shaft 4 to rotate, the driven shaft 4 drives an inner gear ring 11 to rotate through an output gear 7, and then a roller 6 is driven to rotate;

when the electric pallet truck or the electric fork lift truck is powered off, namely a vehicle needs to be driven by manpower to run, the main shaft 3 is pulled outwards along the axis direction of the main shaft 3, one end of the main shaft 3 is pulled out of a counter bore 21a of the output shaft 21, the tooth surface 32 and the input gear 10 are also in a separated state at the moment, the other end of the main shaft 3 extends out of the electromagnetic brake 5 to expose a lock pin hole 31, then a pin shaft is inserted into the lock pin hole 31, the pin shaft abuts against the electromagnetic brake 5 to position the main shaft 3 and limit the main shaft 3 to move towards the direction of the output shaft 21, so that when the vehicle is pushed by manpower, the roller 6 rotates to drive the inner 11 gear ring, the output gear 7 and the driven shaft 4 to rotate, the resistance of the output shaft 21 of the motor 2 and the electromagnetic brake 5 does not exist; when the manual mode needs to be switched to the electric mode, the pin shaft is pulled out of the lock pin hole 31, the main shaft 3 moves towards the output shaft 21 side under the action of the spring 8, one end of the main shaft 3 is inserted into the counter bore 21a, and the main shaft 3 is in transmission connection with the output shaft 21. When the electric pallet truck or the electric fork lift truck breaks down, particularly under the condition that the storage battery is out of power, the electric pallet truck or the electric fork lift truck can manually push the vehicle to move, so that the vehicle cannot stop on a road due to the fault to influence the road traffic, the vehicle utilization rate is greatly improved, the service life is prolonged, and the resource waste is reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A driving device comprises a driving frame (1), a motor (2), a main shaft (3), a driven shaft (4), an electromagnetic brake (5) and a roller (6), wherein the motor (2), the main shaft (3), the driven shaft (4), the electromagnetic brake (5) and the roller (6) are arranged on the driving frame (1), the outer end of an output shaft (21) of the motor (2) is in transmission connection with one end of the main shaft (3), the electromagnetic brake (5) is in transmission connection with the other end of the main shaft (3), the main shaft (3) is in transmission connection with the driven shaft (4) through a gear mechanism, an output gear (7) is sleeved on the driven shaft (4), an inner gear ring (11) meshed with an output gear (7) box is fixed on the roller (6), the driving device is characterized in that the main shaft (3) can axially move relative to the output shaft (21) and enables one end of the main shaft (3) to be in clutch connection with the outer end of, the main shaft (3) can move relative to the electromagnetic brake (5) so that one end of the main shaft (3) with the lock pin hole (31) extends out of the electromagnetic brake (5).

2. A driving device according to claim 1, wherein a counterbore (21a) is formed on the outer end surface of the output shaft (21), and the cross section of the counterbore (21a) is elliptical; the cross section of one end of the main shaft (3) facing the output shaft (21) is oval, and the end can be inserted into a counter bore (21 a).

3. The driving device according to claim 1, wherein a spring (8) is sleeved on the main shaft (3), a clamp spring groove is formed in the outer peripheral surface of the main shaft (3), a clamp spring (9) is arranged in the clamp spring groove, one end of the spring (8) abuts against the clamp spring (9), the other end of the spring (8) abuts against the electromagnetic brake (5), and the spring (8) enables the main shaft (3) to always have a tendency of moving towards the output shaft (21).

4. A drive arrangement according to claim 1, characterised in that the inner gear ring (11) is secured to the rollers (6) by fasteners.

5. A drive unit according to claim 1, wherein a tooth surface (32) is formed on an outer peripheral surface of the main shaft (3) in a circumferential direction, and the driven shaft (4) is fitted with an input gear (10) engaged with the tooth surface (32).