CN207404730U - Folding type hydraulic crane - Google Patents

Abstract

The utility model discloses a foldable hydraulic crane, which comprises a boom and a supporting mechanism. The boom includes a hollow main boom and a telescopic boom with one end arranged in the cavity of the hollow main boom. A crane is installed at the free end of the telescopic boom. hook; the support mechanism includes the horizontal outrigger, the left vertical outrigger and the right vertical outrigger fixedly connected with the horizontal outrigger and the vertical arm vertically arranged in the middle of the horizontal outrigger; the top of the vertical arm is connected with the main boom; the vertical There are reinforcing braces between the boom and the left and right longitudinal outriggers; there is a hydraulic cylinder between the main boom and the vertical boom, the lower part of the hydraulic cylinder is connected to the vertical boom through a hinge, and the upper part is connected to the main boom through a pin. connection; a booster rod is set on the hydraulic cylinder, and a safety valve is set at the bottom. The utility model adopts hydraulic design, compact structure, solid structure, high output power, reliable performance, and low maintenance cost; the combination of electro-hydraulic control and manual operation is adopted, and the operation is simple and reliable.

Description

Folding hydraulic crane

technical field

The utility model belongs to a transporting machine, in particular to a folding hydraulic crane.

Background technique

Crane is a kind of lifting and handling machinery widely used in ports, workshops, electric power, construction sites and other places. The types of cranes include truck cranes, crawler cranes and tire cranes. Cranes are used in hoisting equipment, emergency rescue, lifting, machinery, rescue and so on.

A crane is a kind of multi-action hoisting machinery that vertically lifts and horizontally transports heavy objects within a certain range. It is a machine that performs cyclic and intermittent movements. A working cycle includes: the pick-up device lifts the item from the pick-up place, then moves horizontally to the designated place to lower the item, and then performs a reverse movement to return the pick-up device to its original position for the next cycle. Types include stationary slewing cranes, tower cranes, truck cranes, tires, crawler cranes, etc. The working characteristics of the crane are intermittent movements, that is, the corresponding mechanisms for retrieving, moving, unloading and other actions work alternately in a working cycle.

At present, cranes are widely used in various industries and fields. Because in actual production, it is necessary to lift heavy objects that are not too heavy in many occasions, and the cost of large and medium-sized cranes is too high, and it is inconvenient to use. There are space constraints, and when the crane is not in use, it occupies too much space. Therefore need a kind of low-cost, small crane that is easy to move.

Utility model content

The utility model is proposed in order to overcome the disadvantages of high cost and large occupied space of large and medium-sized cranes in the prior art, and its purpose is to provide a foldable hydraulic crane.

The technical scheme of the utility model is:

A folding hydraulic crane, comprising a boom and a supporting mechanism, the boom includes a hollow main boom and a telescopic boom with one end arranged in a cavity of the hollow main boom, and a hook is installed at the free end of the telescopic boom; The supporting mechanism includes a horizontal outrigger, a left vertical outrigger and a right vertical outrigger fixedly connected with the horizontal outrigger and a vertical arm vertically arranged in the middle of the horizontal outrigger; the top of the vertical arm is connected with the main boom; the vertical arm There is a reinforcing brace between the left longitudinal outrigger and the right longitudinal outrigger; there is a hydraulic cylinder between the main boom and the vertical arm, the lower part of the hydraulic cylinder is connected to the vertical arm through a hinge, and the upper part is connected to the main boom through a pin ; The hydraulic cylinder is provided with a booster rod, and a safety valve is provided at the bottom.

The main boom is provided with a plurality of pin shaft holes in the horizontal direction, and fixed pin shafts are connected through the pin shaft holes.

Both the left vertical leg and the right vertical leg form an included angle α with the horizontal leg, and α is an obtuse angle.

Both ends of the lower end surface of the transverse leg are provided with guide wheels, and the lower end surfaces of the free ends of the left longitudinal leg and the right longitudinal leg are provided with weighing wheels.

The reinforcing rod is arranged on the side of the vertical arm facing away from the hydraulic oil cylinder.

The beneficial effects of the utility model are:

The utility model is made of high-strength steel, with reasonable design structure, safety, stability and reliability, built-in safety valve, fully sealed hydraulic cylinder, manual control of hydraulic cylinder lifting, convenient and simple operation; equipped with nylon guide wheels, saving the physical strength of the operator, And can protect the load wheel; unique hydraulic pump design, easy to lift the pump and designed to maintain an ideal height for assembly line loading and unloading operations; coupled with unique ergonomic design, the operator can operate comfortably; suitable for factories, workshops, warehouses, oil depots Drum loading, unloading, handling, and stacking are especially suitable for chemical and food workshops for dumping or batching. They can also load and unload heavy objects into trucks and stack them. Working with hydraulic drum trucks can greatly improve work efficiency and reduce labor costs. It can also be used for loading and unloading and lifting heavy objects. It is a new type of ideal multi-purpose lifting and handling machinery; it adopts hydraulic design, compact structure, solid structure, high output power, reliable performance, and easy maintenance. The cost is low; the combination of electro-hydraulic control and manual operation is simple and reliable.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is a top view of the utility model.

in:

1 Boom 2 Support mechanism

3 Main boom 4 Telescopic boom

5 Horizontal outrigger 6 Left vertical outrigger

7 Right longitudinal outrigger 8 Pin hole

9 Hook 10 Vertical arm

11 Reinforcement support 12 Hydraulic cylinder

13 Afterburner rod 14 Guide wheel

15 Load wheels.

Detailed ways

The utility model folding hydraulic crane will be described in detail below in conjunction with the accompanying drawings and embodiments of the specification:

As shown in Figures 1 and 2, a folding hydraulic crane includes a boom 1 and a support mechanism 2, and is characterized in that the boom 1 includes a hollow main boom 3 and one end is arranged in the cavity of the hollow main boom 3 Inside the telescopic boom 4, the free end of the telescopic boom 4 is equipped with a hook 9; the support mechanism 2 includes a horizontal leg 5, a left vertical leg 6 and a right vertical leg that are fixedly connected to the horizontal leg 5 and are symmetrical to each other. The leg 7 and the vertical arm 10 vertically arranged in the middle of the cross leg 5; the top of the vertical arm 10 is connected to the main boom 3; the vertical arm 10 and the left vertical leg 6 and the right vertical leg 7 are all provided with reinforcing braces 11 There is a hydraulic cylinder 12 between the main boom 3 and the vertical arm 10, the lower part of the hydraulic cylinder 12 is connected with the vertical arm 10 through a hinge, and the upper part is connected with the main boom 3 through a pin; the hydraulic cylinder 12 is provided with a booster rod 13 , There is also a safety valve at the bottom.

The main boom 3 is provided with a plurality of pin shaft holes 8 in the horizontal direction, and fixed pin shafts pass through the pin shaft holes 8 . There are four pin shaft holes 8 in this embodiment, so that the length of the boom 1 can be adjusted in four positions, and the hook 9 can rotate freely by 360°.

Both the left longitudinal leg 6 and the right longitudinal leg 7 form an angle α with the transverse leg 5, and α is an obtuse angle.

The two ends of the lower end surface of the horizontal support leg 5 are provided with guide wheels 14 , and the lower end surfaces of the free ends of the left vertical support leg 6 and the right vertical support leg 7 are provided with weighing wheels 15 .

The reinforcing rod 13 is disposed on a side of the vertical arm 10 facing away from the hydraulic cylinder 12 .

The using method of the utility model:

Push the crane into the heavy object that needs to be lifted close to, and make the heavy object between the left longitudinal outrigger 6 and the right longitudinal outrigger 7, and directly below the hook 9, and use the hook 9 to structure the heavy object, and lock it Tighten the two guide wheels 14 with brakes, and then continuously press the booster rod 13 by hand, so that the hydraulic oil enters the bottom of the hydraulic cylinder 12, pushes the piston of the hydraulic cylinder 12 to extend, and makes the main boom 3 revolve around the fulcrum pin Lift up to drive the weight up. When it reaches a certain height, loosen the two guide wheels 14 with brakes, push the vertical arm 10 by hand to make the crane move in the desired direction until it reaches the destination, and then slowly Slowly unscrew the safety valve, and the cylinder piston slowly descends under the action of gravity, so that the heavy object falls and is placed in a suitable position; the telescopic boom 4 can be adjusted in length according to the volume and weight of the heavy object. But when finished using, lower the boom 1 to the lowest position for easy storage.

The utility model is made of high-strength steel, with reasonable design structure, safety, stability and reliability, built-in safety valve, fully sealed oil cylinder, manual control of hydraulic system lifting, convenient and simple operation; equipped with nylon guide wheels, saving the physical strength of the operator, and It can protect the load wheel and pallet load wheel; unique hydraulic pump design, easy to lift the pump, designed to maintain an ideal height for assembly line loading and unloading operations; coupled with unique ergonomic design, the operator can operate comfortably; suitable for factories, workshops, warehouses , The loading and unloading, handling and stacking of barrels in oil depots are especially suitable for chemical and food workshops for dumping or batching, and can load and unload heavy objects, stack them, and cooperate with hydraulic drum trucks to greatly improve work efficiency. , to reduce the labor intensity of workers, and can also be used for loading and unloading, lifting heavy objects, it is a new ideal multi-purpose lifting and unloading machinery; hydraulic design, compact, solid, high output power, reliable performance , low maintenance costs; the combination of electro-hydraulic control and manual operation, simple and reliable operation.

Claims (5)

1. a kind of folding type hydraulic crane, including arm (1) and supporting mechanism (2), it is characterised in that：The arm (1) includes Hollow main arm (3) and one end are arranged at the telescoping boom (4) in hollow main arm (3) cavity, telescoping boom (4) free end peace Equipped with suspension hook (9)；The supporting mechanism (2) includes horizontal supporting leg (5), is fixedly connected with horizontal supporting leg (5) and a symmetrical left side is indulged Supporting leg (6) and right vertical supporting leg (7) and the upright arm (10) being vertically installed in the middle part of horizontal supporting leg (5)；Upright arm (10) top with Main arm (3) connection；Strengthening support (11) is both provided between upright arm (10) and left vertical supporting leg (6) and right vertical supporting leg (7)；In master There is hydraulic cylinder (12) between arm (3) and upright arm (10), hydraulic cylinder (12) lower part is connected by hinge and upright arm (10) It connects, top is connected by axis pin with main arm (3)；Extension bar (13) is provided on hydraulic cylinder (12), bottom is additionally provided with peace Full valve.

2. a kind of folding type hydraulic crane according to claim 1, it is characterised in that：It is provided on the main arm (3) The pin shaft hole (8) of multiple horizontal directions is worn in pin shaft hole (8) and is connect by fixed pin shaft.

3. a kind of folding type hydraulic crane according to claim 1, it is characterised in that：The left vertical supporting leg (6) and the right side are indulged Supporting leg (7) forms angle α with horizontal supporting leg (5), and α is obtuse angle.

4. a kind of folding type hydraulic crane according to claim 1, it is characterised in that：Horizontal supporting leg (5) lower face two End is provided with directive wheel (14), and the vertical supporting leg (6) in a left side and right vertical supporting leg (7) free end lower face are provided with wheel (15) of weighing.

5. a kind of folding type hydraulic crane according to claim 1, it is characterised in that：The extension bar (13) is arranged at vertical Straight-arm (10) is backwards to the one side of hydraulic cylinder (12).