CN215828149U

CN215828149U - Hoisting structure of crawler crane

Info

Publication number: CN215828149U
Application number: CN202121579472.9U
Authority: CN
Inventors: 刘志明; 刘志平; 李尧; 唐磊; 郭晶晶
Original assignee: Zhejiang Huansheng Environmental Engineering Co ltd
Current assignee: Zhejiang Huansheng Environmental Engineering Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-15
Anticipated expiration: 2031-07-12

Abstract

The application provides a crawler crane hoisting structure belongs to lifting device technical field. This crawler crane hoisting structure is including hanging subassembly and auxiliary assembly, it includes lifting hook and suspender to hang the subassembly, suspender and lifting hook swing joint, auxiliary assembly includes the lifting unit, the base rod, the bracing piece, guide and extensible member, lifting unit and lifting hook fixed connection, base rod and lifting unit fixed connection, the bracing piece is provided with two, two bracing pieces respectively with the both ends swing joint of base rod, the guide is provided with two, two guide respectively with two bracing piece outer end fixed connection, two bracing piece inner all with extensible member fixed connection. In this application, supplementary subassembly can carry out supplementary support to the suspender under the condition that does not influence current hoisting structure in order to prevent that suspender both ends fixed point from to the slip of center and can freely change the width of support in order to adapt to the object of hanging of different length.

Description

Hoisting structure of crawler crane

Technical Field

The application relates to the technical field of hoisting equipment, in particular to a hoisting structure of a crawler crane.

Background

The crawler crane trafficability characteristic is good specially adapted building site this kind of not good place of road conditions, at the hoist and mount pipeline, during column class building materials such as reinforcing bar, need to hang in the middle of the suspender with the suspender, the suspender both ends part the both ends of fixed thing of hanging, firstly, the sharing stress point prevents that the building materials warp, secondly, improve the stability of hanging, but two suspender fixed points on hanging the thing can slide to the centre and draw close under the effect of gravity, make hanging the thing have the risk that drops, so generally all can install a horizontal shaft-like hoisting structure again between lifting hook and hanging the thing, it fixes hanging the thing through the last detached hoist cable of hoisting structure. The lifting structure has limited adjusting function generally referring to the related art, can not adapt to hanging objects with various lengths, and wastes time and labor when replacing and installing the lifting structure.

How to invent a hoisting structure of a crawler crane to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, this application provides a crawler crane hoisting structure, aims at improving the current limited and hoisting structure of hoisting structure regulatory function and changes the inconvenient problem of installation.

The embodiment of the application provides crawler crane hoisting structure, including hanging subassembly and auxiliary assembly, it includes lifting hook and suspender to hang the subassembly, the suspender with lifting hook swing joint, auxiliary assembly includes lifting member, base pole, bracing piece, guide and extensible member, lifting member with lifting hook fixed connection, the base pole with lifting member fixed connection, the bracing piece is provided with two, two the bracing piece respectively with the both ends swing joint of base pole, the guide is provided with two, two the guide respectively with two bracing piece outer end fixed connection, two bracing piece inner all with extensible member fixed connection.

In the implementation process, the whole auxiliary assembly is hung on the lifting hook through a lifting piece, wherein the lifting hook is of a self-carried structure of the crane, the hanging strip is hung on the lifting hook, two ends of the hanging strip are separated by a specified distance through a guide piece and then vertically downward and then fixedly connected with a hanging object, the risk of falling of the hanging object caused by inward measurement and sliding of two ends of the hanging strip due to separation of fixed points at two ends of the hanging strip is reduced, the distance between the whole auxiliary assembly and the lifting hook can be adjusted through the lifting piece, the angle of the hanging strip at two ends of the lifting hook is adjusted by the aid of the lifting piece, the risk of breakage of the hanging strip due to overlarge pulling force is reduced, the supporting rod in the base rod is driven by the telescopic piece to extend outwards or inwards, the distance between the two guide pieces can be changed, the distance between two ends of the hanging strip is further changed to adapt to hanging objects with different lengths, and the whole auxiliary assembly can be installed and used almost without changing the existing hoisting structure, the installation uses the background, also can be under the condition of not dismantling auxiliary assembly, takes out the suspender from the guide in, can continue to use original hoisting structure, has reduced and has changed the arrangement cost.

In a specific implementation scheme, the inner wall of the base rod is provided with a sliding block, and the outer wall of the supporting rod is provided with a sliding groove matched with the sliding block.

In the implementation process, the sliding block slides in the sliding groove, so that the supporting rod can be prevented from rotating in the base rod, the moving range of the supporting rod in the base rod is limited, and the safety is improved.

In a specific embodiment, the lifting piece comprises a connecting box, two fixed pulleys, a winding drum and a hanging rope, the connecting box is fixedly connected with the base rod, the two fixed pulleys are arranged, the two fixed pulleys are respectively fixedly connected with the two ends of the connecting box, the winding drum is fixedly connected with the connecting box, the hanging rope is fixedly connected with the lifting hook, and the two ends of the hanging rope respectively slide over the two fixed pulleys and then are fixedly connected with the winding drum.

In a specific implementation scheme, the lifting piece further comprises a worm wheel, a motor I and a worm, the worm wheel is fixedly connected with the winding drum, the motor I is fixedly connected with the connecting box, the worm is fixedly connected with an output shaft of the motor I, and the worm is meshed with the worm wheel.

In the above-mentioned realization process, motor I drives the worm rotatory, and the worm drives the worm wheel rotatory, and the worm wheel drives the reel rotatory to this length that changes string rope, two fixed pulleys provide two impetus, can improve whole hoisting structure's stability, and worm and gear self has the auto-lock characteristic, can play fixed effect.

In a specific embodiment, the lifting member further comprises a hook, the hook is fixedly connected with the hanging rope, and the hook is fixedly connected with the lifting hook.

In the implementation process, the hook is welded below the lifting hook, so that the auxiliary assembly can be installed under the condition that the hanging belt is not influenced, and the existing structure is conveniently transformed.

In a specific embodiment, two ends of the connecting box are provided with clamping rings, and two ends of the hanging rope respectively penetrate through the clamping rings.

In the implementation process, the clamping ring can prevent the hanging rope from being separated from the fixed pulley as far as possible, and the reliability is improved.

In a specific embodiment, the two guide members each include a supporting roller and a bracket, the two brackets are respectively and fixedly connected with the two supporting rods, the two supporting rollers are respectively and fixedly connected with the corresponding brackets, and two ends of the sling are respectively and rotatably connected with the two supporting rollers.

In the implementation process, the supporting pulley can reduce the friction between the supporting pulley and the hanging strip and reduce the resistance in the lifting operation.

In a specific embodiment, the bracket is provided with a groove, a convex block is movably connected in the groove, the convex block is fixedly connected with a spring, and the convex block is tightly propped against the hanging strip.

In a specific embodiment, the spring is fixedly connected to the bracket, and the spring is located in the groove.

In the implementation process, the spring pushes the convex block to tightly support the hanging strip on the supporting pulley, so that the hanging strip can be prevented from sliding off, the reliability is improved, the inertia of the hanging strip in shaking can be consumed to a certain extent, and the shaking is reduced.

In a specific embodiment, the telescopic part comprises a motor II and two lead screws, the motor II is fixedly connected with the base rod, the number of the lead screws is two, the two lead screws are respectively fixedly connected with two output shafts of the motor II, each lead screw is meshed with a nut, and the nuts are fixedly connected with the supporting rods.

In the implementation process, the motor II drives the two screw rods to rotate, the support rods on the two nuts are respectively pushed to move outwards or inwards, the telescopic action is completed, and the motor II is a double-shaft extension speed reduction motor with a self-locking function.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a hoisting structure of a crawler crane provided in an embodiment of the present application;

FIG. 2 is a schematic cross-sectional structure view of a hoisting structure of a crawler crane provided in an embodiment of the present application;

FIG. 3 is a schematic structural view of a connection relationship between a hanging rope and a winding drum and a fixed pulley according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of a portion of the structure at A in FIG. 2 according to an embodiment of the present disclosure;

fig. 5 is a schematic structural view of a connection relationship between a base rod and a support rod according to an embodiment of the present disclosure.

In the figure: 10-a hanging assembly; 110-a hook; 120-a harness; 20-an auxiliary component; 210-a lifter; 211-a junction box; 212-a fixed pulley; 213-a reel; 214-a lanyard; 215-a worm gear; 216-Motor I; 217-worm; 218-a hook; 219-a clasp; 220-a base shaft; 230-support rods; 240-a guide; 241-branch pulley; 242-a support; 243-bump; 244-a spring; 250-a telescoping member; 251-motor II; 252-a lead screw; 253-a nut; 260-sliding block.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides a hoisting structure of a crawler crane, which includes a hanging assembly 10 and an auxiliary assembly 20.

The hanging component 10 is a structure carried by the crane, the auxiliary component 20 can support the hanging strip 120 in an auxiliary manner without affecting the existing hoisting structure, so that the fixed points at two ends of the hanging strip 120 are prevented from sliding towards the center, and the width of the support can be freely changed to adapt to hanging objects with different lengths.

With reference to fig. 1, the hanging assembly 10 includes a hook 110 and a hanging strip 120, the hanging strip 120 is movably connected to the hook 110, the auxiliary assembly 20 includes two lifting members 210, two base rods 220, two support rods 230, two guide members 240 and two telescopic members 250, the lifting members 210 are fixedly connected to the hook 110, the base rods 220 are fixedly connected to the lifting members 210, the two support rods 230 are movably connected to two ends of the base rods 220, the two guide members 240 are respectively fixedly connected to outer ends of the two support rods 230, and the inner ends of the two support rods 230 are fixedly connected to the telescopic members 250. The whole auxiliary assembly 20 is hung on the hook 110 through the lifting piece 210, wherein the hook 110 is a self-carried structure of a crane, the hanging strip 120 is hung on the hook 110, two ends of the hanging strip 120 are separated by a specified distance through the guide piece 240 and then vertically downward and then fixedly connected with a hanging object, the risk of falling off of the hanging object caused by inward sliding of two ends of the hanging strip 120 due to separation of fixed points of two ends of the hanging strip 120 is reduced, the distance between the whole auxiliary assembly 20 and the hook 110 can be adjusted through the lifting piece 210, the angle of the hanging strip 120 at two ends of the hook 110 is adjusted, the risk of fracture of the hanging strip 120 due to overlarge pulling force is reduced, the supporting rod 230 in the base rod 220 is outwards or inwards stretched through the driving of the telescopic piece 250, the distance between the two guide pieces 240 can be changed, the distance between two ends of the hanging strip 120 is further changed to adapt to hanging objects with different lengths, the whole auxiliary assembly 20 can be installed and used almost without changing the existing hoisting structure, the installation and use cost is low, and the hanging strip 120 can be drawn out from the guide piece 240 without detaching the auxiliary assembly 20, so that the original hoisting structure can be continuously used, and the replacement and placement cost is reduced.

Referring to fig. 1, 2 and 3, the lifting member 210 includes a connection box 211, two fixed pulleys 212, a winding drum 213 and a hanging rope 214, the connection box 211 is fixedly connected to the base rod 220, the two fixed pulleys 212 are provided, the fixed pulleys 212 are respectively and fixedly connected to two ends of the connection box 211, the winding drum 213 is fixedly connected to the connection box 211, the hanging rope 214 is fixedly connected to the hook 110, and two ends of the hanging rope 214 respectively slide over the two fixed pulleys 212 and then are fixedly connected to the winding drum 213. The lifting piece 210 further comprises a worm wheel 215, a motor I216 and a worm 217, the worm wheel 215 is fixedly connected with the winding drum 213, the motor I216 is fixedly connected with the connecting box 211, the worm 217 is fixedly connected with an output shaft of the motor I216, and the worm 217 is meshed with the worm wheel 215. The motor I216 drives the worm 217 to rotate, the worm 217 drives the worm wheel 215 to rotate, the worm wheel 215 drives the winding drum 213 to rotate, the length of the hanging rope 214 is changed, the two fixed pulleys 212 provide two force points, the stability of the whole hoisting structure can be improved, and the worm wheel 215 and the worm 217 have self-locking characteristics and can play a role in fixing. The lifting member 210 further comprises a hook 218, the hook 218 is fixedly connected with the hanging rope 214, and the hook 218 is fixedly connected with the hook 110. The hook 218 is welded below the hook 110, so that the auxiliary assembly 20 can be installed without affecting the hanging of the hanging strip 120, and the existing structure can be conveniently modified. The connecting box 211 both ends are provided with snap ring 219, hang rope 214 both ends and run through respectively in snap ring 219. The snap ring 219 prevents the hanging rope 214 from being separated from the fixed sheave 212 as much as possible, improving reliability.

Referring to fig. 1 and 4, each of the two guide members 240 includes a supporting roller 241 and a bracket 242, the two brackets 242 are respectively and fixedly connected to the two supporting rods 230, the two supporting rollers 241 are respectively and fixedly connected to the corresponding brackets 242, and two ends of the hanging belt 120 are respectively and rotatably connected to the two supporting rollers 241. The pulley 241 reduces friction with the strap 120 and resistance to the lifting operation of the accessory module 20. The bracket 242 is provided with a groove, a projection 243 is movably connected in the groove, the projection 243 is fixedly connected with a spring 244, and the projection 243 is tightly pressed against the hanging strip 120. The spring 244 pushes the protrusion 243 to tightly press the hanging strip 120 against the pulley 241, so that the hanging strip 120 can be prevented from slipping, the reliability can be improved, the inertia of the hanging strip 120 during shaking can be consumed to a certain extent, and the shaking can be reduced.

Referring to fig. 2 and 5, the telescopic member 250 includes a motor ii 251 and two lead screws 252, the motor ii 251 is fixedly connected with the base rod 220, the two lead screws 252 are provided, the two lead screws 252 are respectively fixedly connected with two output shafts of the motor ii 251, each lead screw 252 is engaged with a nut 253, and the nuts 253 are fixedly connected with the supporting rods 230. The motor ii 251 drives the two lead screws 252 to rotate, and respectively pushes the support rods 230 on the two nuts 253 to move outwards or inwards to complete the telescopic action, wherein the motor ii 251 adopts a double-shaft extension speed reduction motor with a self-locking function. The inner wall of the base rod 220 is provided with a slide block 260, and the outer wall of the support rod 230 is provided with a slide groove matched with the slide block 260. The sliding block 260 slides in the sliding groove, so that the supporting rod 230 can be prevented from rotating in the base rod 220, and meanwhile, the moving range of the supporting rod 230 in the base rod 220 is limited, and the safety is improved.

The working principle of the hoisting structure of the crawler crane is as follows: the whole auxiliary assembly 20 is hung on the lifting hook 110, the hanging strip 120 is hung on a lifting ring at the lower side of the lifting hook 110, two ends of the hanging strip 120 are separated by a designated distance through the guide piece 240 and then vertically downward and then fixedly connected with a hanging object, the risk that the hanging object slides down due to inward sliding of two ends of the hanging strip 120 caused by separation of fixed points at two ends of the hanging strip 120 is reduced, the motor I216 drives the worm 217 to rotate, the worm 217 drives the worm wheel 215 to rotate, the worm wheel 215 drives the winding drum 213 to rotate, so that the length of the hanging rope 214 is changed, the distance between the whole auxiliary assembly 20 and the lifting hook 110 is adjusted, the angle between the hanging strips 120 at two ends of the lifting hook 110 is adjusted by the aid of the adjustment, the risk that the hanging strips 120 are broken due to overlarge pulling force is reduced, the motor II 251 drives the two lead screws 252 to rotate, the support rods 230 on the two nuts 253 are respectively pushed to move outwards or inwards, and the distance between the two guide pieces 240 can be changed, and then change the interval at suspender 120 both ends to the adaptation hangs the thing of different length of hoist, to sum up, whole auxiliary assembly 20 need hardly change current hoisting structure and can install and use, installs and uses the background of the cost, also can be under the condition of not pulling down auxiliary assembly 20, takes out suspender 120 from guide 240 in, can continue to use original hoisting structure, has reduced and has changed the arrangement cost.

It should be noted that the specific model specifications of the sling 120, the hanging rope 214, the fixed pulley 212, the motor i 216, the worm wheel 215, the worm 217, the hook 218, the supporting pulley 241, the spring 244, the motor ii 251, the lead screw 252 and the nut 253 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the motor i 216 and the motor ii 251 and the principle thereof will be clear to the skilled person and will not be described in detail here.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

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 shall 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

1. A hoisting structure of a crawler crane is characterized by comprising

The hanging component (10), the hanging component (10) comprises a hook (110) and a hanging strip (120), and the hanging strip (120) is movably connected with the hook (110);

auxiliary assembly (20), auxiliary assembly (20) are including lifting member (210), base pole (220), bracing piece (230), guide (240) and extensible member (250), lifting member (210) with lifting hook (110) fixed connection, base pole (220) with lifting member (210) fixed connection, bracing piece (230) are provided with two, two bracing piece (230) respectively with the both ends swing joint of base pole (220), guide (240) are provided with two, two guide (240) respectively with two bracing piece (230) outer end fixed connection, two bracing piece (230) inner all with extensible member (250) fixed connection.

2. The hoisting structure of the crawler crane according to claim 1, wherein the inner wall of the base rod (220) is provided with a sliding block (260), and the outer wall of the support rod (230) is provided with a sliding groove matched with the sliding block (260).

3. The hoisting structure of the crawler crane according to claim 1, wherein the lifting member (210) comprises a connection box (211), two fixed pulleys (212), two winding drums (213) and two hanging ropes (214), the connection box (211) is fixedly connected with the base rod (220), the two fixed pulleys (212) are respectively fixedly connected with two ends of the connection box (211), the winding drums (213) are fixedly connected with the connection box (211), the hanging ropes (214) are fixedly connected with the lifting hook (110), and two ends of the hanging ropes (214) respectively slide over the two fixed pulleys (212) and then are fixedly connected with the winding drums (213).

4. The hoisting structure of the crawler crane according to claim 3, wherein the lifting member (210) further comprises a worm wheel (215), a motor I (216) and a worm (217), the worm wheel (215) is fixedly connected with the winding drum (213), the motor I (216) is fixedly connected with the connection box (211), the worm (217) is fixedly connected with an output shaft of the motor I (216), and the worm (217) is meshed with the worm wheel (215).

5. A crawler crane hoisting structure according to claim 3, wherein the lifting member (210) further comprises a hook (218), the hook (218) is fixedly connected with the hanging rope (214), and the hook (218) is fixedly connected with the hook (110).

6. The hoisting structure of the crawling crane as claimed in claim 3, wherein the two ends of the connection box (211) are provided with snap rings (219), and the two ends of the hanging rope (214) respectively penetrate through the snap rings (219).

7. The hoisting structure of the crawler crane according to claim 1, wherein each of the two guides (240) comprises a supporting roller (241) and a bracket (242), the two brackets (242) are respectively and fixedly connected with the two supporting rods (230), the two supporting rollers (241) are respectively and fixedly connected with the corresponding brackets (242), and two ends of the sling (120) are respectively and rotatably connected with the two supporting rollers (241).

8. The hoisting structure of the crawler crane according to claim 7, wherein the bracket (242) is provided with a groove, a projection (243) is movably connected in the groove, the projection (243) is fixedly connected with a spring (244), and the projection (243) abuts against the hanging strip (120).

9. A crawler crane hoisting structure according to claim 8, wherein the spring (244) is fixedly connected to the bracket (242), the spring (244) being located in a recess.

10. The hoisting structure of the crawler crane as recited in claim 1, wherein the telescopic member (250) comprises a motor ii (251) and two lead screws (252), the motor ii (251) is fixedly connected with the base rod (220), the number of the lead screws (252) is two, the two lead screws (252) are respectively fixedly connected with two output shafts of the motor ii (251), each lead screw (252) is engaged with a nut (253), and the nuts (253) are fixedly connected with the support rods (230).