CN201989772U

CN201989772U - Brake system for electric forklift

Info

Publication number: CN201989772U
Application number: CN2011200708943U
Authority: CN
Inventors: 张豪明
Original assignee: Ningbo Haomai Machinery Co Ltd
Current assignee: Ningbo Haomai Machinery Co Ltd
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2011-09-28
Anticipated expiration: 2021-03-17

Abstract

A brake system for an electric forklift is used for forcedly decelerating or braking the running electric forklift, and comprises a pedal, a flexible shaft, an upper brake plate, a lower brake plate, an upper brake block, a lower brake block, a base, a brake disc, a rotary shaft, a first bolt and a second bolt. Both one end of the upper brake plate and one end of the lower brake plate are hinged with the base, and one end of the flexible shaft is connected with the pedal. The first bolt is connected with the upper brake plate; the second bolt is connected with the lower brake plate; the rotary shaft is rotatably connected onto the base; one end of the rotary shaft is connected with a first rocker arm; the other end of the rotary shaft is connected with a first driving lever for driving the first bolt and a second driving lever for driving the second bolt; the other ends of the upper brake plate and the lower brake plate are connected with a return clamping mechanism; and the other end of the flexible shaft is connected with the first rocker arm. When a driving motor is powered off or a power system of the driving motor breaks down, a driver can realize braking of the electric forklift without constantly stepping on the pedal, so that the brake system is convenient for the driver to use.

Description

The electri forklift brake system

Technical field:

The utility model relates to a kind of vehicle braking control system, specifically be a kind of be not the brake system that on tyre surface, acts on.

Background technology:

At present, brake system is installed all usually on the electri forklift that is used for transporting goods, the effect of brake system is: make the electri forklift in travelling carry out forced deceleration even parking according to the requirement of chaufeur.Brake system on the conventional electri forklift is all just braked electri forklift after chaufeur is stepped on stretcher, in other words, when chaufeur need carry out glancing impact to electri forklift, at first stretcher to be stepped on, can spur brake plate with stretcher bonded assembly flexible axle relatively moves with following brake plate, and finally be clamped in drive motor rotating shaft bonded assembly brake disc on, thereby realize braking to electri forklift, and after chaufeur unclamps stretcher, last brake plate will separate with brake disc with following brake plate, and braking force disappears.Though above-mentioned brake system is widely adopted, but still there is a weak point in it in actual application: owing to be used to drive the drive motor that electri forklift moves is to rely on electric energy to be used as power, therefore, in the time of on electri forklift travels the road with slope, in case drive motor dead electricity or drive motor power-supply system break down, electri forklift will glide under the effect of gravity, have an accident in order to prevent electri forklift from gliding along the slope, chaufeur need tramp with one's feet on stretcher always, till the maintainer arrives, clearly, this brake system is used very inconvenience concerning chaufeur.

The utility model content:

The technical problems to be solved in the utility model is, provide a kind of when drive motor dead electricity or drive motor power-supply system break down, need not chaufeur and step down in foot-operated going up always and just can brake, thereby make things convenient for the electri forklift brake system of chaufeur use electri forklift.

Technical solution of the present utility model is, provide a kind of electri forklift brake system: comprise stretcher with following structure, flexible axle, last slipper, following slipper, with brake plate on the last slipper bonded assembly, with brake plate under the following slipper bonded assembly, be used for drive motor casing bonded assembly base and be used for and drive motor rotating shaft bonded assembly brake disc, last slipper and following slipper lay respectively at the brake disc both sides, last slipper and following slipper one end are all hinged with base, flexible axle one end is connected with stretcher, wherein, also comprise rotating shaft, first bolt and second bolt, first bolt is connected with last slipper, second bolt is connected with following slipper, rotating shaft is rotating to be connected on the base, rotating shaft one end is connected with first rocking arm, the rotating shaft other end is connected with and is used to second driving lever stirring first driving lever of first bolt and be used to stir second bolt, the last slipper and the following slipper other end are connected with the clamping mechanism that resets, and the flexible axle other end is connected with first rocking arm.

Electri forklift brake system described in the utility model, wherein, the last slipper and the following slipper other end are connected with the clamping mechanism that resets, this clamping mechanism that resets specifically can adopt following structure: go up on slipper and the following slipper and be connected with the 3rd bolt, be with retracing spring on the 3rd bolt, retracing spring withstands between the 3rd bolt one end and the following slipper.

Electri forklift brake system described in the utility model wherein, can be connected with on the base and is used for controlling and driving motor break-make whether micro-switch, is used to press down the pressing plate that the micro-switch contact makes the micro-switch closure thereby be connected with on first rocking arm.

After adopting above structure, compared with prior art, the utility model electri forklift has the following advantages with brake system: need the chaufeur stretcher that always tramping with one's feet could brake different to electri forklift with prior art, the utility model electri forklift comprises rotating shaft with brake system, and rotating shaft one end is connected with flexible axle by first rocking arm, the other end is connected with and is used to second driving lever stirring first driving lever of first bolt and be used to stir second bolt, therefore, when the electri forklift cruising, the chaufeur stretcher that need tramp with one's feet, last brake plate can separate with brake disc under the effect of first driving lever and second driving lever with following brake plate, when if unexpected dead electricity of drive motor or drive motor power-supply system break down, chaufeur only needs stretcher is unclamped, last brake plate and following brake plate just can be clamped on the brake disc rapidly under the effect of the clamping mechanism that resets, realize braking, in other words, the utility model electri forklift brake system is unclamped stretcher and is come electri forklift is braked, its brake mode is just opposite with original technology, by this brake mode, chaufeur need not to step on stretcher with pin more always and comes electri forklift is braked, thereby has made things convenient for the use of chaufeur.

Being provided with of micro-switch can be after chaufeur be stepped on stretcher, rapid power connection with drive motor, and when chaufeur unclamps stretcher, micro-switch will cut off the power supply of drive motor, rely on this mode, the utility model can avoid electri forklift braking rear drive motor still charged, has guaranteed the safety of using.

Description of drawings:

The master that Fig. 1 is the utility model electri forklift when stretcher is not operated in the brake system looks the semi-sictional view structural representation;

Fig. 2 is the structure for amplifying scheme drawing when removing stretcher and flexible axle among Fig. 1.

The specific embodiment:

Below in conjunction with the drawings and specific embodiments the utility model electri forklift is described in further detail with brake system:

As depicted in figs. 1 and 2, in this specific embodiment, the utility model electri forklift with brake system comprise stretcher 16, flexible axle 14, rotating shaft 7, first bolt 5, second bolt 13, go up slipper 1, down slipper 23, go up brake plate 2, down brake plate 22, by screw and drive motor casing (not shown) bonded assembly base 21 and be used for and drive motor rotating shaft (not shown) bonded assembly brake disc 3.Last slipper 1 and following slipper 23 lay respectively at the both sides up and down of brake disc 3, last slipper 1 and following slipper 23 left ends are all hinged by bearing pin and base 21, last brake plate 2 is connected with last slipper 1 by screw, following brake plate 22 is connected with following slipper 23 by screw, last slipper 1 and following slipper 23 right-hand members are connected with the clamping mechanism that resets, the following structure of the concrete employing of this clamping mechanism that resets: go up on slipper 1 and the following slipper 23 and be connected with the 3rd bolt 4, the 3rd bolt 4 afterbodys pass down slipper 23 and are connected with last slipper 1, the 3rd bolt 4 heads are positioned at slipper 23 belows down, be with retracing spring 20 on the 3rd bolt 4, retracing spring 20 two ends withstand on down between slipper 23 bottoms and the 3rd bolt 4 heads by spring perch.First bolt 5 is connected slipper 1 right-hand member, second bolt 13 is connected down slipper 23 right-hand members, rotating shaft 7 is positioned at through hole that base 21 is provided with and is rotatably connected by this through hole and base 21, rotating shaft 7 one ends are connected with first rocking arm 10, rotating shaft 7 other ends are connected with and are used to second driving lever 12 stirring first driving lever 6 of first bolt 5 and be used to stir second bolt 13, first driving lever 6 is pressed in the afterbody of first bolt 5, and second driving lever 12 is pressed in the afterbody of second bolt 13.Stretcher 16 bottoms are connected rocker shaft 18 right-hand members; rocker shaft 18 left ends are connected with second rocking arm 19; rocker shaft 18 is positioned at supporting sleeve 17 and is rotatably connected with supporting sleeve 17; supporting sleeve 17 is connected on the electri forklift frame 15; flexible axle 14 bottoms are connected with second rocking arm 19 by bearing pin; flexible axle 14 tops are connected with first rocking arm 10 by bearing pin; base 21 is connected with by connecting panel 11 and is used for controlling and driving motor break-make whether micro-switch 9; micro-switch 9 is electrically connected in series with the drive motor (not shown); be used to press down the pressing plate 8 that micro-switch 9 contacts make micro-switch 9 closures thereby be connected with on first rocking arm 10, pressing plate 8 is close on the contact of micro-switch 9.In this specific embodiment, flexible axle 14, last brake plate 2 and following brake plate 22 are conventional prior art, so do not give unnecessary details at this.

The utility model electri forklift with the principle of work of brake system is: when the electri forklift cruising, the chaufeur stretcher 16 that need tramp with one's feet, last brake plate 2 can separate with brake disc 3 under the effect of first driving lever 6 and second driving lever 12 with following brake plate 22, at this moment, when if unexpected dead electricity of drive motor or drive motor power-supply system break down, chaufeur only needs stretcher 16 is unclamped, last brake plate 2 and following brake plate 22 will be clamped in rapidly under the effect of the clamping mechanism that resets on the brake disc 3, realize braking.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. electri forklift brake system, comprise stretcher (16), flexible axle (14), last slipper (1), following slipper (23), with brake plate (2) on last slipper (1) bonded assembly, with brake plate (22) under following slipper (23) bonded assembly, be used for drive motor casing bonded assembly base (21) and be used for and drive motor rotating shaft bonded assembly brake disc (3), described upward slipper (1) and following slipper (23) lay respectively at brake disc (3) both sides, described upward slipper (1) and following slipper (23) one ends are all hinged with base (21), described flexible axle (14) one ends are connected with stretcher (16), it is characterized in that: also comprise rotating shaft (7), first bolt (5) and second bolt (13), described first bolt (5) is connected with last slipper (1), described second bolt (13) is connected with following slipper (23), described rotating shaft (7) is rotating to be connected on the base (21), described rotating shaft (7) one ends are connected with first rocking arm (10), described rotating shaft (7) other end is connected with and is used to second driving lever (12) stirring first driving lever (6) of first bolt (5) and be used to stir second bolt (13), the described upward slipper (1) and following slipper (23) other end are connected with the clamping mechanism that resets, and described flexible axle (14) other end is connected with first rocking arm (10).

2. electri forklift brake system according to claim 1, it is characterized in that: the described upward slipper (1) and following slipper (23) other end are connected with the clamping mechanism that resets and are meant, described going up on slipper (1) and the following slipper (23) is connected with the 3rd bolt (4), be with retracing spring (20) on described the 3rd bolt (4), described retracing spring (20) withstands between the 3rd bolt (4) one ends and the following slipper (23).

3. electri forklift brake system according to claim 1 and 2, it is characterized in that: be connected with on the described base (21) and be used for controlling and driving motor break-make whether micro-switch (9), be connected with on described first rocking arm (10) be used to press down micro-switch (9) thus contact makes the closed pressing plate (8) of micro-switch (9).