CN214828583U

CN214828583U - Crane with movable supporting legs

Info

Publication number: CN214828583U
Application number: CN202120173100.XU
Authority: CN
Inventors: 韩丽华
Original assignee: Zhuhai Tianli Heavy Industry Co ltd
Current assignee: Zhuhai Tianli Heavy Industry Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-23
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a crane with movable supporting legs, which belongs to the field of cranes and comprises a transport vehicle, wherein the upper end of the transport vehicle is fixedly connected with a casing, a hydraulic cavity is arranged inside the casing, the upper end of the casing is fixedly connected with a support frame, the upper end of the support frame is fixedly connected with a motor, the lower end of the motor is fixedly connected with a rotating shaft, the lower end of the rotating shaft penetrates through the support frame and is fixedly connected with a first lead screw, the lower end of the first lead screw is in threaded connection with a first fixed block, the lower end of the first fixed block extends into the hydraulic cavity, the scheme drives the rotating shaft to rotate through the motor, further drives the first lead screw to rotate, so that the first fixed block moves up and down, extrudes hydraulic oil, enables the supporting legs to move towards the two ends of the casing, can move the supporting legs of the crane, improves the stability of the crane, and can effectively avoid objective factors of terrain, the working efficiency of the crane is effectively improved.

Description

Crane with movable supporting legs

Technical Field

The utility model relates to a hoist field, more specifically say, relate to a mobilizable hoist of supporting leg.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally transporting heavy objects within a certain range, which is also called a crane, the working characteristics of the hoisting equipment are intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle work alternately, the crane is more and more widely developed and used in the market, and because the crane does not use supporting legs to hoist the heavy objects and hoist the heavy objects to run, problems often occur, the supporting device of the crane is required to be extended to be in contact with the ground when the crane hoists and takes the heavy objects, and the supporting plate is used for supporting the crane, so that the stability of the crane during working is achieved.

The distance between the supporting plates on the existing crane base is fixed and cannot be adjusted, and the normal work of the crane can be influenced under the condition that the ground is uneven or sundries exist on the ground.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a mobilizable hoist of supporting leg, characterized by pass through the motor and drive the pivot and rotate, and then drive first lead screw and rotate for first fixed block reciprocates, extrudes hydraulic oil, makes the supporting leg can remove to the both ends of casing, can remove the supporting leg of hoist, improves the stability of hoist, can also effectively avoid the objective factor of topography, the effectual work efficiency who improves the hoist.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A crane with movable supporting legs comprises a transport vehicle, wherein a shell is fixedly connected to the upper end of the transport vehicle, a hydraulic cavity is formed in the shell, a support frame is fixedly connected to the upper end of the shell, a motor is fixedly connected to the upper end of the support frame, a rotating shaft is fixedly connected to the lower end of the motor, the lower end of the rotating shaft penetrates through the support frame and is fixedly connected with a first lead screw, a first fixing block is in threaded connection with the lower end of the first lead screw, the lower end of the first fixing block extends into the hydraulic cavity, a pair of second fixing blocks is in sliding connection with the upper end of the shell, the two second fixing blocks are respectively positioned on the left side and the right side of the first fixing block, the lower end of each second fixing block extends into the hydraulic cavity, sliding plates positioned on the inner sides of the second fixing blocks are in sliding connection with the left end and the right end of the hydraulic cavity, sliding through holes are formed in the left end and the right end of the shell, sliding connection has the supporting leg in the through-hole, the inner and the slide fixed connection of supporting leg, this scheme pass through the motor and drive the pivot and rotate, and then drive first lead screw and rotate for first fixed block reciprocates, extrudees hydraulic oil, makes the supporting leg can remove to the both ends of casing, can remove the supporting leg of hoist, improves the stability of hoist, can also effectually avoid the objective factor of topography, the effectual work efficiency who improves the hoist.

Further, two first belt pulleys of outer end fixed connection of pivot, the upper end threaded connection of second fixed block has the second lead screw, the upper end fixedly connected with second belt pulley of second lead screw, rotate through the belt between first belt pulley and the second belt pulley and be connected.

Furthermore, the direction of the threads on the second screw rod is opposite to that of the threads on the first screw rod, and the support frame is provided with a transmission through hole matched with the belt.

Furthermore, the width of the second fixed block is half of the width of the first fixed block, and a groove matched with the first fixed block and the second fixed block is formed in the upper end of the machine shell.

Furthermore, a first sealing ring is arranged at the joint of the first fixing block and the hydraulic cavity, a second sealing ring is arranged at the joint of the second fixing block and the hydraulic cavity, and a third sealing ring is arranged at the joint of the supporting leg and the hydraulic cavity.

Furthermore, the lower extreme of supporting leg is connected with the base, the lower extreme fixedly connected with plank of base.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme passes through the motor and drives the pivot and rotate, and then drives first lead screw and rotate for first fixed block reciprocates, extrudees hydraulic oil, makes the supporting leg can remove the supporting leg of hoist to the both ends of casing, improves the stability of hoist, can also effectually avoid the objective factor of topography, the effectual work efficiency who improves the hoist.

(2) The threads arranged on the first screw rod and the threads arranged on the second screw rod are opposite, the moving directions of the first fixing block and the second fixing block can be opposite by one motor, and the working efficiency is effectively improved.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

fig. 2 is a schematic top view of the present invention.

The reference numbers in the figures illustrate:

the device comprises a machine shell 1, a transport vehicle 2, a motor 3, a first screw rod 4, a first fixing block 5, a second screw rod 7, a second fixing block 8, supporting legs 9, a sliding plate 10, a base 11, a hydraulic cavity 12, a first belt pulley 13, a rotating shaft 14, a second belt pulley 15 and a belt 16.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, a crane with movable supporting legs comprises a transport cart 2, a casing 1 is fixedly connected to the upper end of the transport cart 2, a hydraulic chamber 12 is formed inside the casing 1, a supporting frame is fixedly connected to the upper end of the casing 1, a motor 3 is fixedly connected to the upper end of the supporting frame, a rotating shaft 14 is fixedly connected to the lower end of the motor 3, the lower end of the rotating shaft 14 penetrates through the supporting frame and is fixedly connected with a first screw rod 4, a first fixing block 5 is connected to the lower end of the first screw rod 4 in a threaded manner, the lower end of the first fixing block 5 extends into the hydraulic chamber 12, a pair of second fixing blocks 8 are slidably connected to the upper end of the casing 1, the two second fixing blocks 8 are respectively located at the left side and the right side of the first fixing block 5, the lower end of the second fixing block 8 extends into the hydraulic chamber 12, and sliding plates 10 located inside the second fixing blocks 8 are slidably connected to the left end and the right end of the hydraulic chamber 12, sliding through hole has all been seted up at both ends about casing 1, sliding connection has supporting leg 9 in the through-hole, the inner and slide 10 fixed connection of supporting leg 9, this scheme motor 3 drives first lead screw 4 through pivot 14 and rotates, and then make first fixed block 5 reciprocate, the extrusion hydraulic oil, make supporting leg 9 can remove to casing 1's both ends, can remove the supporting leg 9 of hoist, improve the stability of hoist, can also effectually avoid the objective factor of topography, the effectual work efficiency who improves the hoist.

Referring to fig. 1, two first belt pulleys 13 are fixedly connected to the outer end of the rotating shaft 14, the upper end of the second fixing block 8 is in threaded connection with the second screw rod 7, the upper end of the second screw rod 7 is fixedly connected with the second belt pulley 15, and the first belt pulley 13 is rotatably connected with the second belt pulley 15 through a belt 16.

Referring to fig. 1, the second lead screw 7 has a thread opposite to the first lead screw 4, and the support frame has a transmission through hole matching with the belt 16.

Referring to fig. 1, the width of the second fixing block 8 is half of the width of the first fixing block 5, and a groove matched with the first fixing block 5 and the second fixing block 8 is formed at the upper end of the housing 1.

Referring to fig. 1, a first sealing ring is disposed at a joint of the first fixing block 5 and the hydraulic chamber 12, a second sealing ring is disposed at a joint of the second fixing block 8 and the hydraulic chamber 12, and a third sealing ring is disposed at a joint of the support leg 9 and the hydraulic chamber 12.

Referring to fig. 1, the lower end of the supporting leg 9 is connected with a base 11, and the lower end of the base 11 is fixedly connected with a wood board.

It should be noted that the motor 3 in this embodiment is the prior art, and those skilled in the art can select a motor 3 of an appropriate model according to actual needs, for example: motor 3 model Y90S-2.

When the crane is used, when the terrain is inconvenient to use the crane or the weight of a lifting object is large and the stress area needs to be increased, the motor 3 is started, the rotating shaft 14 drives the first screw rod 4 to rotate, and then drives the first fixing block 5 to move downwards, so that the hydraulic oil pushes the sliding plate 10 to move towards two ends, and further causes the supporting legs 9 to move outwards, meanwhile, the rotating shaft 14 drives the first belt pulley 13 to rotate, and further drives the second belt pulley 15 to rotate through the belt 16, so that the second screw rod 7 rotates, because the thread directions of the first fixing block 5 and the second fixing block 8 are opposite, the second fixing block 8 moves upwards, after the crane is used, the motor 3 is started again, the rotating shaft 14 drives the first belt pulley 13 to rotate, and further drives the second belt pulley 15 to rotate through the belt 16, so that the second screw rod 7 drives the second fixing block 8 to move downwards, make slide 10 remove to the middle part of hydraulic pressure chamber 12, supporting leg 9 and then return and contract, pivot 14 drives first lead screw 4 simultaneously and rotates, first lead screw 4 can drive first fixed block 5 and upwards remove, this scheme passes through motor 3 and drives pivot 14 and rotate, and then drive first lead screw 4 and rotate, make first fixed block 5 reciprocate, extrude hydraulic oil, make supporting leg 9 can remove to the both ends of casing 1, can remove the supporting leg 9 of hoist, improve the stability of hoist, the objective factor that can also effectually avoid the topography, the effectual work efficiency that improves the hoist.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a mobilizable hoist of supporting leg, includes transport vechicle (2), the upper end fixedly connected with casing (1) of transport vechicle (2), its characterized in that: the hydraulic pressure chamber (12) is arranged in the casing (1), the upper end of the casing (1) is fixedly connected with a support frame, the upper end of the support frame is fixedly connected with a motor (3), the lower end of the motor (3) is fixedly connected with a rotating shaft (14), the lower end of the rotating shaft (14) penetrates through the support frame and is fixedly connected with a first lead screw (4), the lower end of the first lead screw (4) is in threaded connection with a first fixing block (5), the lower end of the first fixing block (5) extends into the hydraulic pressure chamber (12), the upper end of the casing (1) is in sliding connection with a pair of second fixing blocks (8), the two second fixing blocks (8) are respectively positioned at the left side and the right side of the first fixing block (5), the lower end of the second fixing block (8) extends into the hydraulic pressure chamber (12), the left end and the right end of the hydraulic pressure chamber (12) are in sliding connection with sliding plates (10) positioned at the inner sides of the second fixing blocks (8), sliding through holes are formed in the left end and the right end of the casing (1), supporting legs (9) are connected in the through holes in a sliding mode, and the inner ends of the supporting legs (9) are fixedly connected with the sliding plate (10).

2. A crane supporting mobile legs according to claim 1, wherein: two first belt pulleys (13) of outer end fixed connection of pivot (14), the upper end threaded connection of second fixed block (8) has second lead screw (7), the upper end fixedly connected with second belt pulley (15) of second lead screw (7), rotate through belt (16) between first belt pulley (13) and second belt pulley (15) and be connected.

3. A crane supporting mobile legs according to claim 2, wherein: the direction of the threads on the second screw rod (7) is opposite to that of the threads on the first screw rod (4), and the support frame is provided with a transmission through hole matched with the belt (16).

4. A crane supporting mobile legs according to claim 1, wherein: the width of the second fixing block (8) is half of the width of the first fixing block (5), and grooves matched with the first fixing block (5) and the second fixing block (8) are formed in the upper end of the machine shell (1).

5. A crane supporting mobile legs according to claim 1, wherein: the first sealing ring is arranged at the joint of the first fixing block (5) and the hydraulic cavity (12), the second sealing ring is arranged at the joint of the second fixing block (8) and the hydraulic cavity (12), and the third sealing ring is arranged at the joint of the supporting leg (9) and the hydraulic cavity (12).

6. A crane supporting mobile legs according to claim 1, wherein: the lower extreme of supporting leg (9) is connected with base (11), the lower extreme fixedly connected with plank of base (11).