CN2679129Y

CN2679129Y - Electric hydraulic jack

Info

Publication number: CN2679129Y
Application number: CN 200420015934
Authority: CN
Inventors: 杨殿栋; 赵苍的
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-18
Filing date: 2004-03-18
Publication date: 2005-02-16
Anticipated expiration: 2014-03-18

Abstract

The utility model provides an electric hydraulic jack, belonging to the field of plant technology for continuously lifting load, which solves the technical problem for providing the electric hydraulic jack. The jack has convenient operation, labor saving, high efficiency, and long service life. The technical proposal of the jack is that comprises a motor, a speed reducer, a support bracket, and a telescopic ram. The power output shaft of the speed reducer is fixed with an eccentric sheave, and the valve handle of the telescopic ram is provided with a return spring ; the end of the valve handle is contacted with the eccentric sheave. The utility model takes the motor as driving force, takes the frame mode of a cam and a push rod for conveying the driving force, and is matched with the return spring of the valve handle of the hydraulic valve ; thus the hydraulic pressure valve handle is pressed recurrently for making the hydraulic cylinder lift with convenient operation, labor saving and high efficiency. Compared with a pneumatic hydraulic hoisting jack, the utility model has long service life, reliable operation, and low cost; the utility model is suitable to vehicle mounted and field work as well as all kinds of the repair industries of the transportation works.

Description

The electric hydaulic jack

Technical field

The utility model relates to a kind of hydraulic jack, belongs to being used for the device technique field of lifting load continuously.

Background technology

Traditional hand-hydraulic jack needs by manpower it to be moved under the weight to be hoisted, and by manpower adjustment, centering jacking position.Afterwards, need to press control lever repeatedly, weight is slowly promoted by manpower.Its weak point is that hoisting speed is slow, consuming time, effort.Though that pneumatic jack has is laborsaving, hoisting speed advantage faster, must be equipped with air pump when operation, to operate also more loaded down with trivial detailsly, expenditure of energy is big, and is fragile, and the manufacturing cost height is so should be improved.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of electric hydaulic jack, and this jack uses easy to operate, laborsaving, work efficiency height, long service life.

It is as follows to address the above problem the technical scheme that is adopted:

A kind of electric hydaulic jack, it comprises motor, reductor, support and telescoping hydraulic cylinder, the takeoff output axle head of said reductor is fixed with eccentric wheel, and the valve rod of the hydraulic valve of said telescoping hydraulic cylinder is provided with retracing spring, and the valve rod end contacts with said eccentric wheel.

For reduce the complete machine height as far as possible, eccentric wheel can be designed to a crank, crank end is installed an antifriction-bearing box, said valve rod end is provided with one " z " shape plate, " z " shape plate is fixed with a guide rod away from the bottom of valve rod one end, guide rod places in the guide pin bushing, and guide pin bushing and support are fixed, and the bearing of the top and crank end of " z " shape plate relative with guide rod contacts.

For both artistic and practical, said motor reducer and telescoping hydraulic cylinder are provided with guard shield, and guard shield and support are fixed, and the guard shield both sides are equipped with the rack on lengthening top, and the handspike of the hinged band hand-pushing handle in the rear end of support is equipped with road wheel under the support.

For ease of manipulating, said handspike one side is provided with the tenon control lever guide collar, the tenon joystick is threaded onto in the guide pin bushing, between the backing pin of tenon joystick and guide pin bushing, be provided with the tenon retracing spring, the tenon adapter sleeve is sleeved on the lower end of handspike, the lower end of tenon joystick links to each other with the tenon adapter sleeve, the draw-in groove plate and the support that match with tenon are fixed, the heart portion of handspike is provided with the fuel-return valve joystick, fuel-return valve joystick upper end leans out from the handspike upper end, and handlebar is housed, and its lower end links to each other with a flexible axle, and the other end of flexible axle joins through the valve rod of universal-joint and fuel-return valve.

Electric hydaulic jack provided by the utility model, with the motor is power, with the frame mode transferring power of cam, push rod, and cooperatively interacts with the retracing spring of hydraulic valve valve rod, press hydraulic valve stem again and again, make the hydraulic actuating cylinder lifting, so the utility model is easy to operate, laborsaving, the work efficiency height, compare with the Pneumatic hydraulic jack, long service life, reliable operation, cost is low.The utility model both had been applicable to vehicle-mounted, was fit to place operation and various communications and transportation operation maintenance industry again and used.

Description of drawings

Fig. 1 is that scheme drawing cuts open in the utility model master office of looking;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment:

Referring to accompanying drawing, the utility model comprises motor 25, reductor 26, support 3 and telescoping hydraulic cylinder 17, one end of the power take-off shaft 27 of reductor 26 is fixed with eccentric wheel, the valve rod 30 of the hydraulic valve 19 of telescoping hydraulic cylinder 17 is provided with retracing spring 18, and valve rod 30 ends contact with said eccentric wheel.

For reduce the complete machine height as far as possible, said eccentric wheel is a crank 22, an antifriction-bearing box 28 is installed in crank 22 ends, valve rod 30 ends are provided with one " z " shape plate 29, " z " shape plate 29 is fixed with the guide rod 21 that places in the guide pin bushing 19 away from the bottom of valve rod 30 1 ends, guide pin bushing 19 is fixing with support 3, and top and crank 22 bearing at end 28 of " z " shape plate 29 relative with guide rod 21 contact.

Motor 25 reductors 26 and telescoping hydraulic cylinder 17 are provided with guard shield 16, and guard shield 16 is fixing with support 3, and guard shield 16 both sides are equipped with the rack 2 on lengthening top 15, the handspike 11 of the hinged band hand-pushing handle 10 in the rear end of support 3, and support is equipped with road wheel 13 times.Rack 2 is a loop bracket, and lengthening top 15 is an acknowledgment copy, and visual concrete operation situation is used for adjusting the lift height of jack.In addition, the source switch 13 of motor 25 can be fixed on the handspike 11.Handspike 11 1 sides are provided with tenon control lever guide collar 9, tenon joystick 7 is threaded onto in the guide pin bushing 9, backing pin 14 and 9 of guide pin bushings at tenon joystick 7 are provided with tenon retracing spring 8, tenon adapter sleeve 6 is sleeved on the lower end of handspike 11, the lower end of tenon joystick 7 links to each other with tenon adapter sleeve 6, the draw-in groove plate 4 that matches with tenon 5 is fixing with support 3, the heart portion of handspike 11 is provided with fuel-return valve joystick 23, fuel-return valve joystick 23 upper ends lean out and are equipped with handlebar 12 from handspike 11 upper ends, its lower end links to each other with a flexible axle 24, and the other end of flexible axle 24 joins through the valve rod of universal-joint and fuel-return valve.Fig. 1, shown in Figure 3, handspike 11 lower ends are and draw-in groove plate 4 pivotallys attached.Handspike 11 can be adjusted to 90 ° of scopes of horizontal direction in vertical direction, during use, mention long bamboo shoot joystick 7, it is outside to make long bamboo shoot adapter sleeve 6 drive long bamboo shoot 5, make it with draw-in groove plate 4 on exact separation, adjust the angle of handspike 11 then, so that can make jack arrive suitable jacking position.After growing bamboo shoot 5 and the draw-in groove of draw-in groove plate 4 cooperating, the angle of inclination of handspike 11 is locked.

Before jack work, with hand cw turn handlebar 12, make it to rotate 360 °, the fuel-return valve that is about to hydraulic actuating cylinder 17 is closed; After jacking work is finished, before withdrawing from jack, with 360 ° of handlebar 12 conter clockwise turns, the fuel-return valve of hydraulic actuating cylinder 17 is opened, the oil in the hydraulic actuating cylinder is got back in the fuel tank, the hydraulic pressure top bounces back with the whereabouts of weight.At this moment, just can take out jack.

Claims

1. electric hydaulic jack, it is characterized in that, it comprises motor [25], reductor [26], support [3] and telescoping hydraulic cylinder [17], power take-off shaft [27] end of reductor [26] is fixed with eccentric wheel, the valve rod [30] of the hydraulic valve [19] of telescoping hydraulic cylinder [17] is provided with retracing spring [18], and valve rod [30] end contacts with said eccentric wheel.

2. the electric hydaulic jack according to claim 1, it is characterized in that, said eccentric wheel is a crank [22], an antifriction-bearing box [28] is installed in crank [22] end, valve rod [30] end is provided with one " z " shape plate [29], " z " shape plate [29] is fixed with the guide rod [21] that places in the guide pin bushing [19] away from the bottom of valve rod [30] one ends, and guide pin bushing [19] is fixing with support [3], and top and crank [22] bearing at end [28] of " z " the shape plate [29] relative with guide rod [21] contacts.

3. according to claim 1 or 2 described electric hydaulic jacks, it is characterized in that, said motor [25], reductor [26] and telescoping hydraulic cylinder [17] are provided with guard shield [16], guard shield [16] is fixing with support [3], guard shield [16] both sides are equipped with the rack [2] on lengthening top [15], the handspike [11] of the hinged band hand-pushing handle [10] in the rear end of support [3] is equipped with road wheel [1] under the support [3].

4. according to claim 1 or 2 described electric hydaulic jacks, it is characterized in that, said handspike [11] one sides are provided with tenon control lever guide collar [9], tenon joystick [7] is threaded onto in the guide pin bushing [9], between the backing pin [14] of tenon joystick [7] and guide pin bushing [9], be provided with tenon retracing spring [8], tenon adapter sleeve [6] is sleeved on the lower end of handspike [11], the lower end of tenon joystick [7] links to each other with tenon adapter sleeve [6], the draw-in groove plate [4] that matches with tenon [5] is fixing with support [3], the heart portion of handspike [11] is provided with fuel-return valve joystick [23], fuel-return valve joystick [23] upper end leans out from handspike [11] upper end, and handlebar [12] is housed, its lower end links to each other with a flexible axle [24], and the other end of flexible axle [24] joins through the valve rod of universal-joint and fuel-return valve.