CN210655897U

CN210655897U - Low-altitude crane

Info

Publication number: CN210655897U
Application number: CN201921725481.7U
Authority: CN
Inventors: 刘胜强; 李维; 王伟; 刘涛; 王晓科; 廖荣华
Original assignee: Hubei Jiangwei Intelligent Automobile Co ltd
Current assignee: Hubei Jiangwei Intelligent Automobile Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-02
Anticipated expiration: 2029-10-15

Abstract

The utility model relates to the technical field of cranes, and specifically discloses a low-altitude crane, comprising a base assembly, a tail leg assembly is connected to the left side of the base assembly, and the right end of the tail leg assembly is located at the A telescopic leg assembly is provided, a slewing bearing is fixed on the telescopic leg assembly, a middle column is connected to the slewing support, the top of the middle column is connected with an operating table, and the middle column is connected to the first connecting rod. It is connected with the second connecting rod, and the first connecting rod is located under the operating table, the second connecting rod is connected to the center column, and the second connecting rod is located above the first connecting rod; The independent hydraulic station is adopted, and the electric motor is used for power, which reduces the cost of the chassis; it can freely enter and exit most warehouses, basements and other low-level spaces for operation; forklift fork handling holes are left on all sides of the bottom platform of the crane, and the luffing cylinder adopts a connecting rod structure to increase large torque.

Description

Low-altitude crane

Technical Field

The utility model relates to a loop wheel machine technical field specifically is a low latitude loop wheel machine.

Background

The crane is commonly known as a crane and widely applied to a series of heavy-duty products such as ships, equipment, machinery, molds and the like, and the power device comprises a motor, a speed reducer, a clutch, a brake, a rope drum, a steel wire rope and the like. The motor is a magnetizing single-phase capacitor motor and is provided with a mechanism which can brake when power is off; the motor is also provided with a thermal switch which can prevent the motor from being burnt out due to overheating; the speed reducer is a two-stage gear speed reducer and is fixedly connected with the motor; the clutch, the brake and the rope drum are integrated, but when the clutch is in a disengaged state, the clutch can quickly descend, and the descending speed can be controlled by operating the brake to avoid impact. The circular hole opened on the front surface of the power device shell can be used for installing a blower, and a user can be equipped with the blower to carry out forced cooling according to the requirement.

The existing low-altitude crane mainly comprises a crawler crane, wherein the crawler crane is limited by self characteristics, a suspension arm is short, the hoisting of the existing low-altitude crane is light, and the existing low-altitude crane is too numerous and heavy for transportation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low latitude loop wheel machine to the current low latitude loop wheel machine track crane who proposes in solving above-mentioned background art receives self characteristics to restrict, and the davit is short, the light problem of jack-up.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a low latitude loop wheel machine, includes the base assembly, the left side of base assembly is connected and is provided with tail leg assembly, the right side extreme department of tail leg assembly is provided with flexible leg assembly, be fixed with slewing bearing on the flexible leg assembly, the last connection of slewing bearing is provided with the center pillar, the top of center pillar is connected with the operation panel, the center pillar links together with first connecting rod and second connecting rod, just first connecting rod is located the below of operation panel, just the second connecting rod is located first connecting rod top.

As a further aspect of the present invention: the base assembly is connected with the tail leg assembly through a pin shaft.

As a further aspect of the present invention: the telescopic leg assembly is characterized in that a square fixing box is welded at the installation position of the telescopic leg assembly, the telescopic leg assembly is reduced according to a certain size and embedded into the fixing box, and two ends of a horizontal oil cylinder in the telescopic leg assembly are fixed on the base fixing box and the installation seat of the telescopic leg assembly through positioning pins respectively.

As a further aspect of the present invention: the first connecting rod is connected with the center pillar through a first pin shaft, the top end of the center pillar is connected with a basic arm through a second pin shaft, the other end of the first connecting rod is connected with a variable amplitude oil cylinder through a fourth pin shaft, the right end of the variable amplitude oil cylinder is connected with the basic arm through a fifth pin shaft, the second connecting rod is connected with the basic arm through a third pin shaft, and the other end of the second connecting rod is connected with the variable amplitude oil cylinder through a fourth pin shaft.

As a further aspect of the present invention: the accessories on the base assembly are fixed on the base assembly through bolts, and the base assembly and the inner ring hole of the slewing bearing are fixed through bolts.

As a further aspect of the present invention: the middle column is connected with the slewing bearing outer ring through a bolt.

As a further aspect of the present invention: the basic arm is provided with a first telescopic oil cylinder, the first telescopic arm is provided with a second telescopic oil cylinder, the second telescopic arm is provided with a third telescopic oil cylinder, the third telescopic arm is provided with a fourth telescopic oil cylinder, the third telescopic arm is fixed through a positioning pin, and the lifting lug is fixed through a screw by a pressing plate.

As a further aspect of the present invention: the right side bottom of basic arm is provided with first flexible arm, second flexible arm, third flexible arm and fourth flexible arm side by side respectively.

As a further aspect of the present invention: an oil tank is arranged behind the center pillar and is fixed on the base assembly.

Compared with the prior art, the beneficial effects of the utility model are that:

the novel hydraulic power station adopts an independent hydraulic station, and adopts a motor as power, so that the chassis cost is reduced; the whole vehicle is 2.5 meters in height, 2.2 meters in width and 4.2 meters in length, and can freely go in and out of most of low-rise space operation such as warehouses, basements and the like; fork carrying holes of a forklift are reserved on four sides of a platform at the bottom of the crane and can be transported by the forklift; the amplitude variation oil cylinder adopts a connecting rod structure to increase the moment, and the test shows that the lifting moment reaches 460KN.m and the full-out arm length can reach 12 meters; the crane is a counterweight, the crane is light and does not need a counterweight, and the crane can be additionally provided with a proper counterweight at the rear part of the platform.

Drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

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

FIG. 2 is a schematic back view of the present invention;

fig. 3 is a top schematic view of the present invention.

In the figure: 1-tail leg assembly, 2-telescopic leg assembly, 3-base assembly, 4-slewing bearing, 5-center column, 6-operation table, 7-first pin shaft, 8-second pin shaft, 9-third pin shaft, 10-first connecting rod, 11-second connecting rod, 12-fourth pin shaft, 13-derricking oil cylinder, 14-fifth pin shaft, 15-basic arm, 16-first telescopic arm, 17-second telescopic arm, 18-third telescopic arm, 19-fourth telescopic arm, 20-first telescopic oil cylinder, 21-second telescopic oil cylinder, 22-third telescopic oil cylinder, 23-fourth telescopic oil cylinder and 24-oil tank.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1-3, in an embodiment of the present invention, a low-altitude crane includes a base assembly 3, a tail leg assembly 1 is connected and disposed on the left side of the base assembly 3, a telescopic leg assembly 2 is disposed at the right end of the tail leg assembly 1, a rotary support 4 is fixed on the telescopic leg assembly 2, a center pillar 5 is connected and disposed on the rotary support 4, an operation table 6 is connected to the top end of the center pillar 5, the center pillar 5 is connected with a first connecting rod 10 and a second connecting rod 11, the first connecting rod 10 is located below the operation table 6, and the second connecting rod 11 is located above the first connecting rod 10.

Further, in the embodiment of the present invention, the base assembly 3 is connected to the tail leg assembly 1 through a pin, so as to realize 90 ° manual rotation of the tail leg.

Further, in the embodiment of the utility model provides an in, the welding of 2 installation departments of flexible leg assembly has square fixed case, and flexible leg assembly 2 reduces the fixed incasement of embedding according to a definite size, and the horizontal cylinder both ends in flexible leg assembly 2 are fixed on the mount pad of fixed case of base and flexible leg assembly 2 through the locating pin respectively, and the flexible leg that drives of horizontal cylinder is flexible.

Further, in the embodiment of the present invention, the first connecting rod 10 is connected to the center pillar 5 through the first pin 7, and is connected to the basic arm 15 through the second pin 8 at the top end of the center pillar 5, the other end of the first connecting rod 10 is connected to the luffing cylinder 13 through the fourth pin 12, the right end of the luffing cylinder 13 is connected to the basic arm 15 through the fifth pin 14, and the second connecting rod 11 is connected to the basic arm 15 through the third pin 9, and the other end thereof is connected to the luffing cylinder 13 through the fourth pin 12, so that the adjustability between each component is high.

Furthermore, in the embodiment of the present invention, the accessories on the base assembly 3 are fixed on the base assembly 3 by bolts, and the inner ring holes of the base assembly 3 and the slewing bearing 4 are fixed by bolts, so that the connection is more tight.

Further, in the embodiment of the present invention, the center pillar 5 and the outer ring of the slewing bearing 4 are connected by a bolt, so that the installation and the disassembly are convenient.

Further, in the embodiment of the present invention, the basic arm 15 is provided with a first telescopic cylinder 20, a second telescopic cylinder 21 on the first telescopic arm, a third telescopic cylinder 22 on the second telescopic arm, and a fourth telescopic cylinder 23 on the third telescopic arm, and the lifting lugs are fixed by the positioning pins, and the lifting lugs are fixed by the pressing plates through screws, so that the positioning of the components is more accurate.

Further, in the embodiment of the present invention, the right bottom of the base arm 15 is respectively provided with a first telescopic arm 16, a second telescopic arm 17, a third telescopic arm 18 and a fourth telescopic arm 19 in parallel, so as to facilitate fixing and working the lifting device at the same time.

Further, in the embodiment of the present invention, an oil tank 24 is disposed behind the center pillar 5, and is fixed on the base assembly 3 to facilitate oil supply of the oil cylinder.

The working principle is as follows: when the crane reaches a designated position, the power supply of the distribution box is switched on, the motor is started to drive the oil pump to work, and the system obtains pressure oil. When the oil tank does not work, the oil returns to the oil tank from the middle position of the three-way valve; the three-way valve is switched to the upper vehicle, the amplitude variation oil cylinder, the telescopic oil cylinder and the rotating motor are respectively controlled through the triple multi-way valve, the amplitude variation angle of the crane is realized, the crane arm stretches and rotates with the part above the center post, and the hoisting operation is realized through the combination of all actions; the three-way valve is switched to get off the vehicle, the tail leg vertical oil cylinder is controlled to stretch out and draw back through the supporting leg multi-way valve respectively, and the front supporting leg and the rear supporting leg realize horizontal stretching and vertical stretching. When in hoisting, the telescopic supporting legs of the lower part are opened firstly, and the vertical oil cylinder extends out to keep larger span, so that the upper part is stable and reliable.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 by those of ordinary skill in the art through specific situations.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete joining mode of each part all can adopt conventional means such as ripe bolt, rivet, welding among the prior art, does not detailed here again.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A low-altitude crane, comprising a base assembly (3), characterized in that a tail leg assembly (1) is connected to the left side of the base assembly (3), and the tail leg assembly (1). ) is provided with a telescopic leg assembly (2) at the right end point of the , the top of the middle column (5) is connected with the operating table (6), the middle column (5) is connected with the first connecting rod (10) and the second connecting rod (11), and the first connecting rod (10) is connected with the second connecting rod (11). The connecting rod (10) is located below the operating table (6), and the second connecting rod (11) is located above the first connecting rod (10).

2 . The low-altitude crane according to claim 1 , wherein the base assembly ( 3 ) and the tail leg assembly ( 1 ) are connected by pins. 3 .

3. A low-altitude crane according to claim 1, characterized in that, a square fixing box is welded at the installation place of the telescopic leg assembly (2), and the telescopic leg assembly (2) is reduced in size and embedded in the fixing box Inside, the two ends of the horizontal oil cylinder in the telescopic leg assembly (2) are respectively fixed on the base fixing box and the mounting seat of the telescopic leg assembly (2) through positioning pins.

4. A low-altitude crane according to claim 1, characterized in that, the first connecting rod (10) is connected to the central column (5) through the first pin (7), and is connected to the central column (5) ) is connected with the basic arm (15) through the second pin (8), the other end of the first connecting rod (10) is connected with the luffing cylinder (13) through the fourth pin (12), and the luffing cylinder ( The right end of 13) is connected with the basic arm (15) through the fifth pin (14), and the second link (11) is connected with the basic arm (15) through the third pin (9), and the other end is connected with the fourth The pin shaft (12) is connected with the luffing oil cylinder (13).

5. A low-altitude crane according to claim 1, wherein the accessories on the base assembly (3) are fixed on the base assembly (3) by bolts, and the base assembly (3) and The inner ring hole of the slewing bearing (4) is fixed by bolts.

6 . The low-altitude crane according to claim 1 , wherein the central column ( 5 ) and the outer ring of the slewing bearing ( 4 ) are connected by bolts. 7 .

7. A low-altitude crane according to claim 4, characterized in that a first telescopic oil cylinder (20) is arranged on the basic arm (15), and a second telescopic oil cylinder (21) is arranged on the first telescopic arm The second telescopic arm is provided with a third telescopic oil cylinder (22), and the third telescopic arm is provided with a fourth telescopic oil cylinder (23), which are fixed by positioning pins, and the lifting ears are fixed by pressing plates by screws.

8. A low-altitude crane according to claim 4 or 7, characterized in that a first telescopic arm (16) and a second telescopic arm (17) are arranged in parallel at the bottom of the right side of the basic arm (15), respectively. ), the third telescopic arm (18) and the fourth telescopic arm (19).

9 . The low-altitude crane according to claim 1 , wherein an oil tank ( 24 ) is arranged behind the central column ( 5 ) and is fixed on the base assembly ( 3 ). 10 .