CN215850751U

CN215850751U - Novel electric industrial vehicle driving system

Info

Publication number: CN215850751U
Application number: CN202122266957.9U
Authority: CN
Inventors: 田波
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-18
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a novel electric industrial vehicle driving system, and belongs to the technical field of transmission machinery. The gear driving mechanism solves the problem that the strength of the gear driving a large-tonnage industrial vehicle is insufficient under the condition of the same size of the existing driving mechanism. The novel electric industrial vehicle driving system comprises a gearbox body, a driving motor, a transmission input gear shaft, large helical teeth, an output gear shaft, an inner gear ring, a driving large wheel, an electromagnetic brake, a bearing, an elastic retainer ring, a sealing ring and a sealing cover; the transmission input gear shaft and a motor shaft of the driving motor are the same shaft and are of an integral structure. The utility model has the advantages of stable transmission, simple and small structure, low cost, high efficiency and the like, and because the input gear shaft of the transmission and the shaft of the driving motor are of an integral structure, the gear module is increased in a narrow space, and the purpose of improving the strength of the gear for driving the large-tonnage industrial vehicle is achieved.

Description

Novel electric industrial vehicle driving system

Technical Field

The utility model belongs to the technical field of transmission machinery, and relates to a novel electric industrial vehicle driving system.

Background

The market of industrial vehicles in China has wide development space, and particularly industrial vehicles for logistics, such as electric porters, electric stacking vehicles and the like, have great market potential. With the continuous development of economy, higher requirements are made on the electric industrial vehicle products which are environment-friendly, safe and efficient.

The gearbox used by the existing electric industrial vehicle driving system basically adopts a split type scheme of assembling a primary transmission pinion on a transmission input shaft, and has the obvious defects that: under the condition of the same size, the gear modulus is smaller, wherein the modulus of a first-stage transmission gear is 1.25, and the modulus of a second-stage transmission gear is 1.5, so that the gear tooth thickness is thinner, and the strength requirement of the gear when the gear drives large-tonnage industrial vehicles for logistics cannot be met. The primary transmission pinion and the transmission input shaft are integrated, namely the integral structure, so that the modulus of the gear in the space with the same size is increased, the strength requirement of the gear when a large-tonnage industrial vehicle for logistics is driven can be well met, and the reliability and the service life of the whole driving system are improved.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a novel electric industrial vehicle driving system which can better meet the strength requirement of a gear when a large-tonnage industrial vehicle for logistics is driven, and can improve the reliability and the service life of the whole driving system.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a novel electric industrial vehicle actuating system, includes gearbox body, driving motor, derailleur input tooth axle and derailleur input tooth axle intermeshing's big skewed tooth, output tooth axle through flat key connection, and output tooth axle intermeshing's ring gear, the drive bull wheel of connecting through screw and ring gear, install the electromagnetic brake on derailleur input tooth axle and gearbox body, derailleur input tooth axle and output tooth axle and ring gear and driving motor are provided with the bearing and are equipped with circlip at the tip of the outsider, and gearbox body outside port is sealed through sealing washer and sealed lid.

In the above-mentioned novel electric industrial vehicle driving system, the transmission input gear shaft and the driving motor shaft are the same shaft and are of an integral structure. The increase of the gear module in the same space is realized, the strength and the reliability of the gear are improved, and the service life of the gear is prolonged.

In the above-mentioned novel electric industrial vehicle driving system, the driving motor adopts 48V permanent magnet brushless synchronous motor, so that the motor efficiency is higher.

In the novel electric industrial vehicle driving system, the gearbox body is of an integrated structure, a gearbox cover in the prior art is omitted, and material cost and processing cost are reduced. The upper part of the gearbox body is provided with the wire way, and the lower part of the wire way is completely isolated from the driving large wheel, so that the hidden danger that the electric wire and the driving large wheel have friction in the running process of the driving system is thoroughly eliminated.

In the above new electric industrial vehicle driving system, the transmission ratio of the transmission is 23.57: 1, the modulus of the first-stage transmission gear is 1.5, and the modulus of the second-stage transmission gear is 2.

Drawings

FIG. 1 is a cross-sectional view of the present electric industrial vehicle drive system.

In the figure, 1, a gearbox body; 2. a drive motor; 3. a transmission input gear shaft; 4. large helical teeth; 5. a flat bond; 6. an output gear shaft; 7. an inner gear ring; 8. a driving bull wheel; 9. electromagnetic braking; 10. a bearing; 11. circlip, 12, sealing ring, 13, sealing cover, 14, wire groove.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the electric industrial vehicle driving system includes a transmission case 1, a driving motor 2, a transmission input gear shaft 3, large helical teeth 4 engaged with the transmission input gear shaft 3, an output gear shaft 6 connected by a flat key 5, an inner gear ring 7 engaged with the output gear shaft 6, a driving large wheel 8 connected by a screw and the inner gear ring 7, an electromagnetic brake 9 mounted on the transmission input gear shaft 6 and the transmission case 1, the transmission input gear shaft 3 and the output gear shaft 6, the inner gear ring 7 and the driving motor 2 are provided with bearings 10 and elastic collars 11 at outer end portions, and an external port of the transmission case 1 is sealed by a sealing ring 12 and a sealing cover 13.

In a further detail, the gearbox body 1 is connected with the driving motor 2 through screws, the transmission input gear shaft 3 rotates after the driving motor 2 is powered on (the transmission input gear shaft 3 and a motor shaft of the driving motor 2 are the same shaft and are of an integral structure), the transmission input gear shaft 3 is in transmission engagement with the large helical gear 4 (primary speed reduction transmission), the large helical gear 4 is fixedly connected with the output gear shaft 6 through a flat key 5, the output gear shaft 6 is in transmission engagement with the inner gear ring 7 (secondary speed reduction transmission), and the inner gear ring 7 is fixedly connected with the driving large wheel 8 through screws so as to drive the driving large wheel 8 to rotate. In order to realize the motor braking function, an electromagnetic brake 9 is arranged at the shaft end of the transmission input gear shaft 6, a bearing 10 is arranged between the mutually rotating parts, an elastic retainer ring 11 is arranged at the outer end part, and the outer port of the transmission case body 1 is sealed by a sealing ring 12 and a sealing cover 13.

In order to prevent the driving sheave 8 from rubbing the wires during rotation, a wire groove 14 is provided at an upper portion of the transmission case 1, and a lower portion of the wire groove 14 is completely separated from the driving sheave 8.

The speed ratio of the gearbox is 23.57: 1, the modulus of the first-stage transmission gear is 1.5, and the modulus of the second-stage transmission gear is 2.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a novel electric industrial vehicle actuating system, its characterized in that, including gearbox body (1), driving motor (2), derailleur input tooth axle (3), and big skewed tooth (4) of derailleur input tooth axle (3) intermeshing, output tooth axle (6) through flat key (5) connection, ring gear (7) with output tooth axle (6) intermeshing, drive bull wheel (8) through screw and ring gear (7) connection, install electromagnetic brake (9) on derailleur input tooth axle (3) and gearbox body (1), derailleur input tooth axle (3) and output tooth axle (6) and ring gear (7) and driving motor (2) are provided with bearing (10) and are equipped with circlip (11) at the outer tip, and gearbox body (1) outside port is sealed through sealing washer (12) and sealed lid (13).

2. A new electric industrial vehicle drive system according to claim 1, characterized in that the transmission input gear shaft (3) is the same shaft as the shaft of the drive motor (2) and is of unitary construction.

3. A new electric industrial vehicle drive system according to claim 1, characterized in that the drive motor (2) is a permanent magnet brushless dc synchronous motor.

4. The new electric industrial vehicle drive system according to claim 1, characterized in that the gearbox housing (1) is a one-piece construction, eliminating the gearbox cover of the prior art.

5. A new electric industrial vehicle drive system according to claim 1, characterized in that the gearbox housing (1) is provided with wire troughs (14) in the upper part.

6. The new electric industrial vehicle drive system of claim 1, wherein the transmission has a ratio of 23.57: 1, the modulus of the first-stage transmission gear is 1.5, and the modulus of the second-stage transmission gear is 2.