CN210001483U

CN210001483U - Lifting arm assembly and lorry-mounted crane

Info

Publication number: CN210001483U
Application number: CN201920191064.2U
Authority: CN
Inventors: 卿丽纯; 郭方云; 方怡红; 王清泉
Original assignee: HUNAN SHUANGDA ELECTROMECHANICAL Co Ltd
Current assignee: HUNAN SHUANGDA ELECTROMECHANICAL Co Ltd
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2020-01-31
Anticipated expiration: 2029-02-12

Abstract

The application provides cargo boom assemblies and lorry-mounted cranes, the cargo boom assembly comprises a cargo boom and a hoisting mechanism, the cargo boom comprises a basic arm and at least telescopic arms sleeved in the basic arm, the hoisting mechanism is connected to the tail of the basic arm, so that a hoisting rope on the hoisting mechanism is wound from the tail of the basic arm to the head of the telescopic arms through the upper parts of the basic arm and the telescopic arms, the lorry-mounted crane comprises the above-mentioned cargo boom assembly, a hoisting rope and a lifting appliance, the end of the hoisting rope is wound on the hoisting mechanism, and the other end of the hoisting rope is wound from the upper parts of the basic arm and the telescopic arms to the head of the telescopic arms and then is connected with the lifting appliance.

Description

Lifting arm assembly and lorry-mounted crane

Technical Field

The application relates to the field of engineering machinery, in particular to a lifting arm assembly and a lorry-mounted crane.

Background

In the prior art, a lorry-mounted crane generally comprises a crane boom, a hoisting mechanism, a steel wire rope, a lifting appliance and an upright post, wherein the crane boom comprises a basic arm and a telescopic arm sleeved in the basic arm, the upright post is fixedly connected to an automobile chassis, the basic arm is pivoted on the upright post, the hoisting mechanism is arranged below the basic arm or in the upright post, the end of the steel wire rope is wound on the hoisting mechanism, the other end of the steel wire rope is wound to the head of the telescopic arm from the lower parts of the basic arm and the telescopic arm and then is connected with the lifting appliance, and the hoisting mechanism is arranged below the crane boom or in the upright post, so that the hoisting mechanism is inconvenient to install or maintain, and the disorder of the steel wire.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application mainly aims to provide kinds of crane arm assemblies and lorry-mounted cranes, so as to solve the problem of inconvenient installation or maintenance of hoisting mechanisms in the prior art.

In order to achieve the purpose, the technical scheme of the application is realized as follows:

the aspect of the application provides crane boom assembly, which comprises a crane boom and a hoisting mechanism, wherein the crane boom comprises a basic arm and at least telescopic arms sleeved in the basic arm, and the hoisting mechanism is arranged at the tail part of the basic arm, so that a hoisting rope on the hoisting mechanism is wound from the tail part of the basic arm to the head part of the telescopic arms through the basic arm and the upper parts of the telescopic arms.

, the boom assembly further includes a connector, the hoist mechanism being removably connected to the base arm via the connector.

, the basic arm comprises an arm body, a mounting plate and a reinforcing plate, wherein the mounting plate and the reinforcing plate are arranged at the tail of the arm body, the mounting plate is connected with the arm body, the reinforcing plate is respectively connected with the arm body and the mounting plate, and the hoisting mechanism is detachably connected with the mounting plate through the connecting piece.

, the basic arm further comprises a positioning plate arranged at the tail of the arm body, a positioning hole is arranged on the mounting plate, the positioning plate penetrates through the positioning hole and is connected with the mounting plate, and the positioning plate is clamped with the winding mechanism.

, the winding mechanism includes a mounting seat and a winding assembly, the winding assembly is disposed on the mounting seat, and the mounting seat is connected with the tail of the basic arm.

, the mounting base includes a mounting base and a second mounting base, the mounting base is detachably connected with the basic arm, the second mounting base is detachably connected with the mounting base, and the winding assembly is arranged on the second mounting base.

, the installation seat comprises two side plates respectively arranged at two sides of the basic arm, a support plate arranged on each side plate and a connecting plate connecting the two side plates, a step part connecting the support part and the support part is formed on the side plates, the end of the support plate is provided with a plug-in port, the support plate is arranged on the support part and is plugged in the step part through the plug-in port, and the second installation seat is detachably arranged on the support plate.

, the boom assembly further comprises a plurality of stoppers for stopping the hoist rope, the stoppers being respectively disposed at the head of the base arm and each of the telescopic arms.

In a further aspect of the application, there is provided a vehicle-mounted crane comprising the jib assembly of any above, a hoisting line and a spreader, wherein the end of the hoisting line is coiled around the hoisting mechanism and the further end of the hoisting line is coiled from the upper parts of the base arm and the telescopic arm to the head of the telescopic arm and then connected to the spreader.

, the lorry-mounted crane further comprises an upright post, the tail part of the basic arm is provided with an axle hole, the basic arm is pivotally connected with the upright post through the axle hole, and the gravity center of the hoisting mechanism is located at the side of the axle hole far away from the basic arm.

The application provides a crane boom assembly and lorry crane installs hoisting mechanism on the afterbody of basic arm, and the installation of hoisting mechanism or maintenance of being convenient for because the overhead rope of hoisting mechanism on winds to the head of flexible arm from the afterbody of basic arm through the upper portion of basic arm and flexible arm, is convenient for inspect whether the overhead rope has the condition of indiscriminate rope.

Drawings

FIG. 1 is a schematic structural view of a boom assembly according to an embodiment of the present application, wherein a hoist line and spreader are also shown;

FIG. 2 is an exploded view at A of FIG. 1;

FIG. 3 is a side view of a boom assembly of an embodiment of the present application, wherein the hoist line and spreader are also shown;

fig. 4 is a top view of a boom assembly according to an embodiment of the present application, wherein the hoisting line and spreader are also shown.

The reference numerals of the crane boom assembly 100, the crane boom 1, the basic arm 11, the arm body 111, the mounting plate 112, the positioning hole 1121, the reinforcing plate 113, the positioning plate 114, the shaft hole 115, the telescopic arm 12, the hoisting mechanism 2, the mounting seat 21, the -th mounting seat 211, the side plate 2111, the supporting portion 21111, the step portion 21112, the supporting plate 2112, the inserting port 21121, the connecting plate 2113, the second mounting seat 212, the hoisting assembly 22, the -th connecting piece 3, the limiting piece 4, the hoisting rope 200 and the hoisting tool 300.

Detailed Description

In the description of the present application, the terms "leading," "trailing," "upper," "lower," and "trailing" are used in reference to the orientation or positional relationship shown in FIG. 1, which is based on the normal use of the lift truck, it being understood that such terms are merely used to facilitate the description and to simplify the 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 considered as limiting.

Referring to fig. 1-4, the present application provides a crane boom assembly 100 comprising a crane boom 1 and a hoisting mechanism 2, wherein the crane boom 1 comprises a base boom 11 and at least telescopic booms 12 sleeved in the base boom 11, and the hoisting mechanism 2 is connected to the tail part of the base boom 11, so that a hoisting rope 200 on the hoisting mechanism 2 is wound from the tail part of the base boom 11 to the head part of the telescopic booms 12 through the upper parts of the base boom 11 and the telescopic booms 12.

The application provides a crane boom assembly and lorry crane installs hoisting mechanism on the afterbody of basic arm, and the installation of hoisting mechanism or maintenance of being convenient for because the overhead rope of hoisting mechanism on winds to the head of flexible arm from the afterbody of basic arm through the upper portion of basic arm and flexible arm, is convenient for inspect whether the overhead rope has the condition of indiscriminate rope. In addition, the hoisting mechanism has a larger moment from a stress point, and the hoisted object can be hoisted by the hoisting mechanism through a smaller pulling and lifting force.

, the boom assembly 100 further includes a connector 3, and the hoist 2 is removably connected to the base arm 11 via a connector 3.

The winding mechanism is detachably connected with the basic arm through an th connecting piece, so that the installation and maintenance of the winding mechanism are convenient, and particularly, the th connecting piece 3 can be selected from a fastening piece or a pin connecting piece, such as a bolt and a nut.

, the basic arm 11 includes an arm 111, a mounting plate 112 and a reinforcing plate 113 arranged at the tail of the arm 111, the mounting plate 112 is connected with the arm 111, the reinforcing plate 113 is respectively connected with the arm 111 and the mounting plate 112, and the connecting piece 3 detachably connects the winding mechanism 2 with the mounting plate 112.

The hoisting mechanism is installed through the installation plate, and the installation plate is relatively small in size and convenient to process and manufacture; the reinforcing plate is used for reinforcing the connection between the arm body and the mounting plate, and the stability of the structure is improved.

, the basic arm 11 further includes a positioning plate 114 disposed at the tail of the arm 111, the mounting plate 112 is disposed with a positioning hole 1121, the positioning plate 114 passes through the positioning hole 1121 and is connected to the mounting plate 112, and the positioning plate 114 is connected to the winding mechanism 2.

Hoist mechanism and locating plate joint, through the positioning action of locating plate, fix a position hoist mechanism in advance, the rethread connecting piece is connected hoist mechanism and mounting panel is detachable, and the accurate quick installation of hoist mechanism of being convenient for.

, the winding mechanism 2 includes a mounting base 21 and a winding assembly 22, the winding assembly 22 is disposed on the mounting base 21, and the mounting base 21 is connected with the tail of the base arm 11.

The hoisting assembly is arranged on the mounting seat, and the mounting seat is connected with the tail part of the basic arm, so that the hoisting assembly is convenient to mount and maintain. It can be understood that the mounting seat is connected with the tail part of the basic arm, and can be a fixed connection mode of welding, and can also be a detachable movable connection mode of screw connection or pin connection and the like.

, the mounting base 21 includes a mounting base 211 and a second mounting base 212, the mounting base 211 is removably connected to the base arm 11, the second mounting base 212 is removably connected to the mounting base 211, and the winding assembly 22 is disposed on the second mounting base 212. specifically, the mounting base 211 and the second mounting base 212 are connected by a second connector, which may be selected from a fastener or a pin connector.

The second mounting seat is detachably connected with the th mounting seat, so that the winding assembly can be conveniently mounted on and dismounted from the th mounting seat, and the th mounting seat is detachably connected with the basic arm, so that the winding mechanism can be conveniently mounted on and dismounted from the basic arm.

, the mounting seat 211 comprises two side plates 2111 respectively arranged at two sides of the basic arm 11, a support plate 2112 arranged on each side plate 2111 and a connecting plate 2113 connecting the two side plates 2111, wherein the side plates 2111 form a support portion 21111 and a step portion 21112 connected with the support portion 21111, the end of the support plate 2112 is provided with a socket 21121, the support plate 2112 is arranged on the support portion 21111 and is plugged on the step portion 21112 through the socket 21121, and the second mounting seat 212 is detachably arranged on the support plate 2112.

The step portion of the side plate is connected to the arm body, the supporting plate is arranged on the supporting portion and is connected to the step portion in an inserting mode through the inserting port, the second installation seat is connected with the supporting portion through the supporting plate, the supporting plate is used for supporting the winding assembly and the second installation seat, the supporting plate is large in bearing area, the winding assembly and the second installation seat are prevented from being directly connected to the supporting portion, reaction force of the supporting portion directly acts on the second installation seat to cause structural deformation, the supporting plate is connected to the step portion in an inserting mode through the inserting port to facilitate connection of the supporting plate and the side plate, the connecting plate is used for bearing force from the winding mechanism, in addition, the aspect is used for strengthening connection between the two side plates, force borne by the side plates is reduced, and.

Specifically, connector 3 detachably connects step 21112 to the rear portion of the base arm 11, and step, connector 3 also detachably connects step 21112 to the mounting plate 112.

, the boom assembly 100 further includes a plurality of stoppers 4 for limiting the position of the lifting rope 200, the stoppers 4 are respectively disposed at the base arm 11 and the head of each telescopic arm 12. specifically, the stoppers 4 may be disposed at the middle portion and the head of the base arm 11, and the stoppers 4 may be disposed at the head of each telescopic arm.

The hoisting rope on the hoisting mechanism winds to the head of the telescopic boom from the tail of the basic boom through the upper parts of the basic boom and the telescopic boom, the hoisting rope is easy to shake in the use process, the limiting piece is used for limiting the shaking of the hoisting rope, better hoisting operation is facilitated in the aspect of , and friction between the hoisting rope and the hoisting boom is reduced in the aspect of .

Referring to fig. 1, the present application also provides an on-vehicle crane, which comprises the above-mentioned boom assembly 100, a hoisting rope 200 and a spreader 300, wherein the end of the hoisting rope 200 is wound on the hoisting mechanism 2, and the other end of the hoisting rope 200 is wound from the upper parts of the base arm 11 and the telescopic arm 12 to the head part of the telescopic arm 12 and then connected with the spreader 300.

The other ends of the hoisting rope are wound from the upper parts of the basic arm and the telescopic arm to the head part of the telescopic arm and then connected with the lifting appliance, so that the lifting appliance is convenient to install and use.

, the lorry-mounted crane further comprises a post (not shown), the tail part of the basic arm 11 is provided with an axle hole 115, the basic arm 11 is pivotally connected with the post through the axle hole 115, and the gravity center of the winding mechanism 2 is positioned at the side of the axle hole 115 far away from the basic arm 11.

The gravity center of the hoisting mechanism is located at the side of the shaft hole far away from the basic arm, when the crane arm assembly is lifted and hoisted, the upright post is subjected to a force generated by the hoisted object and towards the head of the basic arm and a force generated by the hoisting mechanism and towards the tail of the basic arm, and the two force action directions are opposite, so that partial acting force can be mutually counteracted, and the force applied to the upright post is reduced.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A crane arm assembly, comprising a crane arm and a hoisting mechanism, wherein the crane arm comprises a basic arm and at least telescopic arms sleeved in the basic arm, and the hoisting mechanism is connected to the tail part of the basic arm so that a hoisting rope on the hoisting mechanism is wound from the tail part of the basic arm to the head part of the telescopic arms through the basic arm and the upper parts of the telescopic arms.
2. The boom assembly of claim 1, further comprising an -th connector, wherein the hoisting mechanism is removably connected to the base arm via the -th connector.
3. The boom assembly of claim 2, wherein the base arm includes a body, and a mounting plate and a reinforcement plate disposed at a rear portion of the body, the mounting plate being coupled to the body, the reinforcement plate being coupled to the body and the mounting plate, respectively, and wherein the th connector detachably couples the hoist mechanism to the mounting plate.
4. The lift arm assembly of claim 3, wherein the base arm further comprises a positioning plate disposed at the end of the arm body, the mounting plate having a positioning hole, the positioning plate passing through the positioning hole and being connected to the mounting plate, the positioning plate being engaged with the hoisting mechanism.
5. The boom assembly of any one of claims 1-4 , wherein the hoisting mechanism comprises a mounting base and a hoisting assembly, the hoisting assembly being disposed on the mounting base, the mounting base being connected to the tail portion of the base arm.
6. The boom arm assembly of claim 5, wherein the mounts comprise an th mount and a second mount, the th mount being removably coupled to the base arm, the second mount being removably coupled to the th mount, the winch assembly being disposed on the second mount.
7. The boom assembly of claim 6, wherein the -th mounting seat comprises two side plates respectively disposed on two sides of the basic arm, a support plate disposed on each side plate, and a connecting plate connecting the two side plates, wherein the side plates are formed with a support portion and a step portion connected to the support portion, the support plate is provided with a socket at an end thereof, the support plate is disposed on the support portion and is plugged onto the step portion through the socket, and the second mounting seat is detachably disposed on the support plate.
8. The boom assembly of any one of claims 1-4 , wherein the boom assembly further comprises a plurality of stoppers for stopping the load line, the stoppers being respectively disposed at the head of the base arm and each of the telescopic arms.
An lorry-mounted crane, characterized in that, the lorry-mounted crane comprises the lifting arm component, the lifting rope and the lifting appliance of any of claims 1-8, wherein end of the lifting rope is wound on the winding mechanism, and the other end of the lifting rope is connected with the lifting appliance after being wound from the upper parts of the basic arm and the telescopic arm to the head part of the telescopic arm.
10. The lorry-mounted crane according to claim 9, characterized in that the lorry-mounted crane further comprises a stand column, an axle hole is arranged at the tail part of the basic arm, the basic arm is pivotally connected with the stand column through the axle hole, and the gravity center of the hoisting mechanism is located at side of the axle hole far away from the basic arm.