CN217894966U

CN217894966U - Lorry-mounted crane with frog-shaped hydraulic support legs

Info

Publication number: CN217894966U
Application number: CN202221803062.2U
Authority: CN
Inventors: 姚运文
Original assignee: Mudanjiang Lvchuang Technology Co ltd
Current assignee: Mudanjiang Lvchuang Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-25
Anticipated expiration: 2032-07-14

Abstract

The utility model relates to a lorry-mounted crane with frog shape hydraulic leg, it includes that chassis (11) are gone up in the past and is equipped with transport vechicle automobile body (1) of driver's cabin (12) and carriage (13) backward in proper order, be equipped with hoist (2) of fixed mounting on chassis (11) in carriage (13), hoist (2) are including base (21), revolving stage (22), jack-up post (23), jib loading boom (24), become width of cloth hydro-cylinder (25), hydraulic leg (26) and manual control valve (27), hydraulic leg (26) movable mounting is on base (21), draw in carriage (13) when out of work in, the during operation extends carriage (13) and plays the supporting role outward. The device has the advantages of small change range of the vehicle, labor saving, high transformation efficiency, and contribution to improving the productivity and reducing the labor cost. The lifting device solves the problems of lifting and transporting of vehicles in use, and achieves the aim of one vehicle with multiple purposes.

Description

Lorry-mounted crane with frog-shaped hydraulic support legs

Technical Field

The utility model relates to a jack-up transportation equipment, concretely relates to lorry crane with frog shape hydraulic leg.

Background

With the increasing productivity, the potential excavation of the transport vehicles is becoming an important measure for releasing the labor. The lorry-mounted crane belongs to the remanufacturing equipment, is a special transport vehicle with the crane arranged between a cab and a carriage, and is very convenient to use because the crane can be used for hoisting and transporting. The existing lorry-mounted crane is formed by modifying an open-shed van type transport vehicle, a section of carriage is generally required to be removed, and the carriage is moved backwards, so that a free position between a cab and the carriage is used for installing the crane. The modification method has a large modification range of the vehicle, wastes manpower, has low modification efficiency, and is not beneficial to improving the productivity and reducing the labor cost.

Disclosure of Invention

The utility model aims at the defect of current lorry crane repacking mode, provide one kind little to the change scope of vehicle, use manpower sparingly, reform transform efficiently, be favorable to productivity gain and reduce the lorry crane with frog shape hydraulic leg of cost of labor.

The technical solution of the utility model is that: the crane comprises a transport vehicle body, wherein a cab and a carriage are sequentially arranged on a chassis from front to back, a crane fixedly arranged on the chassis is arranged in the carriage, the crane comprises a base, a rotary table, a lifting upright post, a lifting arm, a variable amplitude oil cylinder, a hydraulic support leg and a manual control valve, the base is fixedly arranged on the chassis of the transport vehicle body in the carriage, the rotary table is rotatably arranged on the base, the lower part of the lifting upright post is fixedly arranged on the rotary table, the rear end of the lifting arm is hinged with the upper end of the lifting upright post, a cylinder body and a cylinder rod of the variable amplitude oil cylinder are respectively hinged with the rotary table and the lifting arm, the manual control valve is fixedly arranged on the base, the hydraulic support leg is movably arranged on the base, the hydraulic support leg is folded into the carriage when not working, and the hydraulic support leg extends out of the carriage when working.

The technical effects of the utility model are that: the device has the advantages of small change range of the vehicle, labor saving, high transformation efficiency, and contribution to improving the productivity and reducing the labor cost. The lifting device solves the problems of lifting and transporting of vehicles in use, and achieves the aim of one vehicle with multiple purposes. The utilization rate of the vehicles in use is improved, the labor cost is reduced, the investment and the use of the device liberate the labor of a plurality of people and can increase the social benefit, old motor vehicles can return to the transportation industry after being transformed for a week, and the reutilization rate of old equipment is improved.

Drawings

FIG. 1 is a schematic side view of the embodiment of the present invention;

FIG. 2 is a structural diagram of a main body of a crane according to an embodiment of the present invention;

fig. 3 is the structure diagram of the supporting leg of the crane of the embodiment of the invention.

Detailed Description

As shown in fig. 1, 2 and 3, the crane comprises a transport vehicle body 1, wherein a cab 12 and a carriage 13 are sequentially arranged on a chassis 11 from front to back, a crane 2 fixedly arranged on the chassis 11 is arranged in the carriage 13, the crane 2 comprises a base 21, a rotary table 22, a lifting upright column 23, a lifting arm 24, a luffing cylinder 25, a hydraulic support leg 26 and a manual control valve 27, the base 21 is fixedly arranged on the chassis 21 of the transport vehicle body 1 in the carriage 13, the rotary table 22 is rotatably arranged on the base 21, the lower part of the lifting upright column 23 is fixedly arranged on the rotary table 22, the rear end of the lifting arm 24 is hinged with the upper end of the lifting upright column 23, the cylinder body and the cylinder rod of the luffing cylinder 25 are respectively hinged with the rotary table 22 and the lifting arm 24, the manual control valve 27 is fixedly arranged on the base 21, the hydraulic support leg 26 is movably arranged on the base 21 and is folded into the carriage 13 when not in work, and extends out of the carriage 13 when the work to play a supporting role.

The crane 2 is mounted on the chassis 11 at a position in front of the cabin 13 near the cab 12.

A supporting bottom plate 37 is arranged between the base 21 of the crane 2 and the carriage 13, the base 21 is fixed on the supporting bottom plate 37, and the supporting bottom plate 37 is fixed on the bearing cross beam 14 of the chassis 11 of the transport vehicle body 1.

The crane 2 is provided with a hydraulic system, and the power source of the hydraulic system is a diesel engine, a gasoline engine or a vehicle-mounted motor.

Moment limiter inductors are respectively arranged on hydraulic pipelines of the variable amplitude oil cylinder 25, the boom telescopic oil cylinder, the hoisting mechanism motor, the swing mechanism motor and the hydraulic support leg 26 of the crane 2, and when the pressure of the hydraulic pipelines exceeds rated moment, the moment limiters automatically close an oil supply system to stop the crane operation so as to ensure the lifting safety.

The hydraulic support leg 26 is composed of a left transverse support leg 28, a left transverse support leg hydraulic cylinder 29, a left vertical support leg 30, a left vertical support leg hydraulic cylinder 31, a right transverse support leg 32, a right transverse support leg hydraulic cylinder 33, a right vertical support leg 34 and a right vertical support leg hydraulic cylinder 35, the right end of the left transverse support leg 28 and the left end of the right transverse support leg 32 are respectively hinged with the base 21, the tail end of the left transverse support leg hydraulic cylinder 29 is hinged with the base 21, the tail end of the cylinder rod is hinged with the left end of the left transverse support leg 28, the tail end of the right transverse support leg hydraulic cylinder 33 is hinged with the base, the tail end of the cylinder rod is hinged with the right end of the right transverse support leg 32, the lower end of the left vertical support leg 30 is provided with a support leg 36, the upper end of the left transverse support leg 28 is hinged with the left end, the tail end of the left vertical support leg 31 is hinged with the left transverse support leg 28, the tail end of the cylinder rod is hinged with the lower end of the left vertical support leg 30, the lower end of the right vertical support leg 34 is provided with a support leg 36, the upper end of the right transverse support leg 32 is hinged with the right vertical support leg 32, and the tail end of the right vertical support leg 35.

Feet 36 at the lower ends of the left upright leg 30 and the right upright leg 34 are respectively hinged with the left upright leg 30 and the right upright leg 34 so as to be matched with a supporting surface.

Hydraulic locks are respectively arranged on a left transverse supporting leg hydraulic oil cylinder 29, a left vertical supporting leg hydraulic oil cylinder 31, a right transverse supporting leg hydraulic oil cylinder 33 and a right vertical supporting leg hydraulic oil cylinder 35 of the hydraulic supporting leg 26. The hydraulic lock is used to prevent each hydraulic cylinder of the hydraulic leg 26 from retracting when the hydraulic line bursts, causing a side dump, or when the crane boom rotates beyond a rated torque, causing each hydraulic cylinder of the hydraulic leg to retract.

The working principle is as follows:

the crane 2 of the lorry-mounted crane is arranged in a carriage 13 of a transport vehicle body 1, the height and the width of the crane 2 are all smaller than or equal to the size required by the technical parameters of the transport vehicle body 1, and the crane is provided with an independent power source which can be gasoline, diesel engines, alternating current motors, direct current motors and the like. Two sides of the crane 2 are respectively provided with 2 movable supporting legs which can be adjusted to 30-60 degrees for the safety of hoisting operation, and the supporting legs are designed into frog-leg structures for the convenience of supporting and retracting the supporting legs. When the crane 2 does not work, the supporting legs are folded in the carriage 13, when the crane 2 works, the free ends of the left transverse supporting leg 28 and the right transverse supporting leg 32 extend out of the carriage 13 from the inside of the carriage 13, and then the supporting legs 36 at the lower ends of the left vertical supporting leg 30 and the right vertical supporting leg 34 are supported on the ground outside the carriage, so that the hydraulic supporting legs can bear the anti-inclination task during hoisting, and the safety during hoisting is ensured.

Before the lifting operation, the hydraulic support legs are firstly opened to support the crane 2 on the ground, and the supporting bottom plate 37 of the crane 2 is adjusted to be slightly away from the automobile carriage 13 but not away from the carriage 13, so that the stability during lifting is ensured. When lifting, the lifting hook is firstly adjusted to the required height until the position is suitable for the hook. When the required height of the lifted goods is predicted to be not reached, the cargo boom 24 can be properly adjusted before the goods are lifted so as to meet the requirement of being capable of lifting the height of the goods, but when the lifted goods can not leave the ground with the telescopic cargo boom 24 and the lifting angle needs to be adjusted, the lifted goods are slowly moved, the manual operation valve 27 is operated, and the lifted goods are slightly rotated until the required lifting position is reached. The novel electric heating furnace is reasonable in structural design, convenient and safe to operate, and can completely meet the use requirement.

Claims

1. The utility model provides a lorry crane with frog shape hydraulic leg, it includes transport vechicle automobile body (1) that is equipped with driver's cabin (12) and carriage (13) in proper order from the past backward on chassis (11), its characterized in that: the crane (2) is fixedly installed on a chassis (11) and is arranged in a carriage (13), the crane (2) comprises a base (21), a rotary table (22), a lifting upright post (23), a lifting arm (24), a variable amplitude oil cylinder (25), a hydraulic support leg (26) and a manual operating valve (27), the base (21) is fixedly installed on the chassis (11) of a transport vehicle body (1) in the carriage (13), the rotary table (22) is rotatably installed on the base (21), the lower portion of the lifting upright post (23) is fixedly installed on the rotary table (22), the rear end of the lifting arm (24) is hinged to the upper end of the lifting upright post (23), a cylinder body and a cylinder rod of the variable amplitude oil cylinder (25) are respectively hinged to the rotary table (22) and the lifting arm (24), the manual operating valve (27) is fixedly installed on the base (21), the hydraulic support leg (26) is movably installed on the base (21) and is folded into the carriage (13) when the crane does not work, and the crane extends out of the carriage (13) to play a supporting role when the crane works.

2. A lorry crane with frog hydraulic legs according to claim 1, characterized in that the crane (2) is mounted on the chassis (11) at the front of the carriage (13) near the cab (12).

3. A lorry crane with frog hydraulic legs according to claim 1, characterized in that a support floor (37) is provided between the base (21) of the crane (2) and the car (13), the base (21) being fixed to the support floor (37), the support floor (37) being fixed to the load-bearing cross member (14) of the chassis (11) of the wagon body (1).

4. The lorry-mounted crane with frog-shaped hydraulic support leg according to claim 1, characterized in that the crane (2) is provided with a hydraulic system, and the power source of the hydraulic system is diesel oil, gasoline engine or vehicle-mounted motor.

5. The lorry-mounted crane with frog-shaped hydraulic support leg as claimed in claim 1, characterized in that the hydraulic pipelines of the luffing cylinder (25), the boom extension cylinder, the hoisting mechanism motor, the slewing mechanism motor and the hydraulic support leg (26) of the crane (2) are respectively provided with a torque limiter sensor, when the pressure of the hydraulic pipeline exceeds a rated torque, the torque limiter automatically closes the oil supply system to stop the crane operation, so as to ensure the safety of the crane.

6. The lorry-mounted crane with frog-shaped hydraulic support legs according to claim 1, characterized in that the hydraulic support legs (26) are composed of a left transverse support leg (28), a left transverse support leg hydraulic cylinder (29), a left vertical support leg (30), a left vertical support leg hydraulic cylinder (31), a right transverse support leg (32), a right transverse support leg hydraulic cylinder (33), a right vertical support leg (34) and a right vertical support leg hydraulic cylinder (35), the right end of the left transverse support leg (28) and the left end of the right transverse support leg (32) are respectively hinged with the base (21), the tail end of the left transverse support leg hydraulic cylinder (29) is hinged with the base (21), the tail end of the cylinder rod is hinged with the left end of the left transverse support leg (28), the tail end of the right transverse support leg hydraulic cylinder (33) is hinged with the base, the tail end of the cylinder rod is hinged with the right end of the right transverse support leg (32), the lower end of the left vertical support leg (30) is provided with a support leg (36), the upper end is hinged with the left transverse support leg (28), the right end of the left transverse support leg (31) is hinged with the right transverse support leg (32), the tail end of the cylinder body of the right vertical supporting leg hydraulic cylinder (35) is hinged with the right transverse supporting leg (32), and the tail end of the cylinder rod is hinged with the lower end of the right vertical supporting leg (34).

7. A lorry crane with frog-shaped hydraulic legs according to claim 6, characterized in that the lower ends of the left and right standing legs (30, 34) are hinged with the left and right standing legs (30, 34) respectively, at their lower ends, by feet (36) for cooperation with a supporting surface.

8. A lorry-mounted crane with frog-shaped hydraulic support leg according to claim 6, characterized in that the hydraulic support leg (26) is provided with hydraulic locks on the left cross support leg hydraulic cylinder (29), the left vertical support leg hydraulic cylinder (31), the right cross support leg hydraulic cylinder (33) and the right vertical support leg hydraulic cylinder (35), respectively.