CN205204764U

CN205204764U - Electric shifting device

Info

Publication number: CN205204764U
Application number: CN201521016148.0U
Authority: CN
Inventors: 康丽
Original assignee: ZHEJIANG GOODSENSE FORKLIFT CO Ltd
Current assignee: ZHEJIANG GOODSENSE FORKLIFT CO Ltd
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2016-05-04
Anticipated expiration: 2025-12-09

Abstract

The utility model belongs to the technical field of fork truck shifts, refer in particular to an electric shifting device, the controller respectively with direction switch, relay K1, relay K2, two electricity of limit switch no. 1 and limit switch are connected, the low -speed signal or the high -speed signal of direction switch output pass through controller control relay K1 or the action of relay K2, make motor corotation or reversal on the electric putter, the corotation of the last motor of electric putter or reversal drive push rod on the electric putter and remove and then promote to keep off a position pole and remove to high -speed position or low -speed position, it removes to high -speed position or corresponding limit switch no. 1 or the limit switch no. 2 of low -speed position post -trigger to keep off the position pole, control relay K1 or the action of relay K2 behind limit switch no. 1 or limit switch's no. 2 the signal were received to the controller, and then messenger's motor stop work, the advantage is: keeping off the bit map and coming automatic control through electric putter, avoided manual trouble of shifting, the driver can control the vehicle by both hands, has improved driving safety nature.

Description

Electric shifter

Technical field

The utility model belongs to fork truck gearshift technical field, refers in particular to a kind of electric shifter.

Background technology

At present, existing fork truck gearshift is generally manually shifted gears, and chaufeur is manually shifted gears as required and adjusted the motoring condition of vehicle.When manual shift, one of chaufeur holds that bearing circle controls the travel direction of vehicle, another holds gear push rod and regulates gear, because single hand is to the direction controlling limitation of vehicle, easily causes driver distraction, there is certain potential safety hazard.

Summary of the invention

The purpose of this utility model is to provide a kind of electric shifter.

The purpose of this utility model is achieved in that

Electric shifter, controller respectively with direction switch, relay K 1, relay K 2, limit switch one and limit switch two are electrically connected, the low speed signal that direction switch exports or high speed signal are by controller control relay K1 or relay K 2 action, make the motor forward or reverse on electric pushrod, push rod on the forward or reverse driving electric push rod of the motor on electric pushrod moves and then promotes shift rod and moves to high speed gear or low speed gear, shift rod triggers corresponding limit switch one or limit switch two after moving to high speed gear or low speed gear, controller receives control relay K1 or relay K 2 action after the signal of limit switch one or limit switch two, and then motor is quit work.

In technique scheme, open contact in described relay K 1 is all held with the P1 of the motor on electric pushrod with one end of normally closed contact and is connected, open contact in relay K 2 is all held with the P2 of the motor on electric pushrod with one end of normally closed contact and is connected, the other end of the normally closed contact on relay K 1, K2 is all connected with the negative pole of power supply, the other end of open contact is all connected with the positive pole of power supply, and one end of the coil on relay K 1, K2 is connected with pin F with the pin E of controller respectively, the other end is all connected with power cathode.

In technique scheme, described limit switch one, two is all connected with the positive and negative electrode of power supply, and the signal output part S on limit switch one, two is connected with pin A, the pin B of controller respectively.

In technique scheme, the input end on described direction switch is connected with positive source, and the high speed signal mouth on direction switch and low speed signal mouth are connected with pin C, the pin D of controller respectively.

The utility model gives prominence to compared to existing technology and useful technique effect is:

Shift rod of the present utility model is connected with electric pushrod, when controller receives high speed signal, the work of controller control relay makes electric pushrod rotate forward, the push rod extend outwards of electric pushrod promotes shift rod and hangs to high speed gear, shift rod reaches capacity and to trigger high speed limit switch behind position and make controller control electric pushrod to quit work, put into gear; When controller receives low speed signal, the work of controller control relay makes electric pushrod reverse, the push rod of electric pushrod inwardly shrinks and promotes shift rod extension to low speed gear, shift rod reaches capacity and to trigger low speed limit switch behind position and make controller control electric pushrod to quit work, put into gear, shift transformation is controlled automatically by electric pushrod, avoids the trouble of manual shift, chaufeur can manipulate vehicle by both hands, improves drive safety.

Accompanying drawing explanation

Fig. 1 is structure principle chart of the present utility model.

Detailed description of the invention

The utility model is further described with specific embodiment below in conjunction with accompanying drawing, see Fig. 1:

Open contact in above-mentioned relay K 1 is all held with the P1 of the motor on electric pushrod with one end of normally closed contact and is connected, open contact in relay K 2 is all held with the P2 of the motor on electric pushrod with one end of normally closed contact and is connected, the other end of the normally closed contact on relay K 1, K2 is all connected with the negative pole of power supply, the other end of open contact is all connected with the positive pole of power supply, and one end of the coil on relay K 1, K2 is connected with pin F with the pin E of controller respectively, the other end is all connected with power cathode.

Above-mentioned limit switch one, two is all connected with the positive and negative electrode of power supply, and the signal output part S on limit switch one, two is connected with pin A, the pin B of controller respectively.

Input end on above-mentioned direction switch is connected with positive source, and the high speed signal mouth on direction switch and low speed signal mouth are connected with pin C, the pin D of controller respectively.

Principle of work of the present utility model is:

The high speed signal mouth of direction switch exports a high level to the pin D of controller, after controller receives high level signal, the pin E of controller exports a high level signal to relay K 1, the open contact of relay K 1 closes, P1 end on electric pushrod obtains high potential, P2 end obtains low voltage, electric pushrod rotates forward and shift rod is pushed into high speed gear, shift rod triggers limit switch one after reaching the limit of position, the signal output part S of limit switch one exports a low level to the pin A of controller, after controller receives low level signal, the pin E of controller exports a low level, the open contact of relay K 1 disconnects, electric pushrod stops operating, shift rod rests on high speed gear,

The low speed signal mouth of direction switch exports a high level to the pin C of controller, after controller receives high level signal, the pin F of controller exports a high level signal to relay K 2, the open contact of relay K 2 closes, on electric pushrod, P2 end obtains high potential, P1 end obtains low voltage, shift rod is pushed into low speed gear by electric pushrod reversion, shift rod triggers limit switch two after reaching the limit of position, the signal output part S of limit switch two exports a low level to the pin B of controller, after controller receives low level signal, the pin F of controller exports a low level, the open contact of relay K 2 disconnects, electric pushrod stops operating, shift rod rests on low speed gear.

Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.

Claims

1. electric shifter, it is characterized in that: controller respectively with direction switch, relay K 1, relay K 2, limit switch one and limit switch two are electrically connected, the low speed signal that direction switch exports or high speed signal are by controller control relay K1 or relay K 2 action, make the motor forward or reverse on electric pushrod, push rod on the forward or reverse driving electric push rod of the motor on electric pushrod moves and then promotes shift rod and moves to high speed gear or low speed gear, shift rod triggers corresponding limit switch one or limit switch two after moving to high speed gear or low speed gear, controller receives control relay K1 or relay K 2 action after the signal of limit switch one or limit switch two, and then motor is quit work.

2. electric shifter according to claim 1, it is characterized in that: the open contact in described relay K 1 is all held with the P1 of the motor on electric pushrod with one end of normally closed contact and is connected, open contact in relay K 2 is all held with the P2 of the motor on electric pushrod with one end of normally closed contact and is connected, relay K 1, the other end of the normally closed contact on K2 is all connected with the negative pole of power supply, the other end of open contact is all connected with the positive pole of power supply, relay K 1, one end of coil on K2 is connected with pin F with the pin E of controller respectively, the other end is all connected with power cathode.

3. electric shifter according to claim 1, is characterized in that: described limit switch one, two is all connected with the positive and negative electrode of power supply, and the signal output part S on limit switch one, two is connected with pin A, the pin B of controller respectively.

4. electric shifter according to claim 1, is characterized in that: the input end on described direction switch is connected with positive source, and the high speed signal mouth on direction switch and low speed signal mouth are connected with pin C, the pin D of controller respectively.