CN116062630A - Telescopic boom and working machine - Google Patents

Telescopic boom and working machine Download PDF

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Publication number
CN116062630A
CN116062630A CN202310070320.3A CN202310070320A CN116062630A CN 116062630 A CN116062630 A CN 116062630A CN 202310070320 A CN202310070320 A CN 202310070320A CN 116062630 A CN116062630 A CN 116062630A
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CN
China
Prior art keywords
telescopic boom
sliding
support
bucket
working
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310070320.3A
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Chinese (zh)
Inventor
姜永斌
方伟
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Sany Automobile Manufacturing Co Ltd
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Sany Automobile Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sany Automobile Manufacturing Co Ltd filed Critical Sany Automobile Manufacturing Co Ltd
Priority to CN202310070320.3A priority Critical patent/CN116062630A/en
Publication of CN116062630A publication Critical patent/CN116062630A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The invention relates to the technical field of working machines, and provides a telescopic boom and a working machine. The telescopic boom comprises: at least two arm sections which are sleeved in turn from inside to outside, and any two adjacent arm sections are connected in a sliding way; at least two guide structures are respectively arranged on the corresponding arm sections, the guide structures extend along the length direction of the arm sections, and the parts of the two guide structures corresponding to any two adjacent arm sections are overlapped; the sliding component is arranged on the guide structure and can move between any adjacent guide structures, and is used for hoisting the working hopper; the first driving mechanism is used for driving the sliding assembly to move. After the telescopic boom is positioned, the situation that many rescue workers need to be transported for many times is achieved, and the working bucket only needs to reciprocate along the boom section, so that repeated telescoping, lifting and positioning of the telescopic boom are not needed, the operation process of the telescopic boom is simplified, the time for adjusting and positioning the telescopic boom for many times is saved, and the rescue efficiency can be effectively improved.

Description

Telescopic boom and working machine
Technical Field
The invention relates to the technical field of working machines, in particular to a telescopic boom and a working machine.
Background
In the related art, a working machine provided with a telescopic boom, such as a fire truck or a climbing truck, often uses a working bucket provided at a telescopic end of the telescopic boom when performing rescue operations. In the actual rescue process, the telescopic boom is controlled to stretch out and draw back and lift to enable the working bucket to be positioned to the position of the person to be rescued, and after the person to be rescued enters the working bucket, the telescopic boom acts to drive the working bucket to descend, so that rescue operation is completed. When the number of people to be rescued is large, the telescopic boom needs to be controlled to stretch, lift and position repeatedly, and as the telescopic boom is complex to control, the positioning difficulty of the telescopic boom is large, the time for positioning for many times is long, and the rescue efficiency is easy to delay.
Disclosure of Invention
The invention provides a telescopic boom and an operation machine, which are used for solving the defect that in the prior art, when the number of the telescopic boom to be rescued is large, repeated telescopic boom expansion, lifting and positioning are required to be controlled, and the operation is complicated, and realizing the effect of reducing the times of telescopic boom expansion, lifting and positioning.
The invention provides a telescopic boom, comprising:
at least two arm sections which are sequentially sleeved from inside to outside, and any two adjacent arm sections are connected in a sliding manner;
the guide structures are respectively arranged on the corresponding arm sections and correspond to the number of the arm sections one by one, extend along the length direction of the arm sections, and the parts of the two guide structures corresponding to any two adjacent arm sections are overlapped;
the sliding component is arranged on the guide structures and can move between any two adjacent guide structures, and the sliding component is used for hoisting the working hopper;
and the first driving mechanism is used for driving the sliding assembly to move.
According to the telescopic boom provided by the invention, any arm section is provided with the installation space, the installation spaces of the adjacent arm sections are communicated, the guide structure is arranged on the inner side wall of the corresponding installation space, one side of the installation space, which is provided with the guide structure, is also provided with the through avoidance groove, the extending direction of the avoidance groove is the same as that of the guide structure, and the avoidance groove is used for connecting the sliding assembly with the working bucket.
According to the telescopic boom provided by the invention, the space inside the boom section forms the installation space;
or, the telescopic boom further comprises at least two sleeves sequentially sleeved from inside to outside, any two adjacent sleeves are connected in a sliding mode, each sleeve is connected with a corresponding arm section, and the space inside the sleeve forms the installation space.
According to the telescopic boom provided by the invention, the telescopic boom further comprises an inclined surface structure, and the inclined surface structure is arranged between the supporting surfaces of any two adjacent guide structures.
According to the telescopic boom provided by the invention, the telescopic boom further comprises an aerial ladder, wherein the aerial ladder comprises at least two ladder frames which are sequentially sleeved from inside to outside, any two adjacent ladder frames are connected in a sliding manner, and each ladder frame is connected with a corresponding arm section.
According to the telescopic boom provided by the invention, the telescopic boom further comprises a rescue trolley, wherein the rescue trolley is slidably arranged in the scaling ladder and can move along the length direction of the scaling ladder.
According to the telescopic boom provided by the invention, the scaling ladder is arranged at the top of the boom section.
According to the telescopic boom provided by the invention, the sliding assembly comprises a support and a supporting wheel;
the support is used for being connected with the working bucket, the supporting wheel with the support rotates to be connected and is used for with the guide structure cooperation.
According to the telescopic boom provided by the invention, the sliding assembly further comprises a mounting seat, a limiting wheel and an elastic piece;
one end of the mounting seat is in sliding connection with the support, the other end of the mounting seat extends out of the avoidance groove, the limiting wheel is mounted on the part, extending out of the avoidance groove, of the mounting seat, the elastic piece is connected with the mounting seat and the support, and the elastic piece is used for driving one end, provided with the limiting wheel, of the mounting seat to move towards the direction close to the support.
According to the telescopic boom provided by the invention, the guide structure and the sliding assembly are arranged at the bottom of the boom section, so that the working bucket moves between the spaces below the boom section.
The invention also provides a working machine which comprises the working bucket and the telescopic boom.
According to the working machine provided by the invention, the working machine further comprises a second hoisting mechanism, wherein the second hoisting mechanism is arranged on the working bucket and is connected with the sliding assembly through a flexible piece.
According to the working machine provided by the invention, the working bucket comprises a base, a hoisting seat, a supporting rod and a guardrail;
the lifting seat with parallel arrangement about the base, the lifting seat with be equipped with two sets of bracing piece between the base, every the bracing piece first end with the base rotates to be connected, the second end all with lifting seat sliding connection, the work fight includes operating condition and folding state, in folding state, two sets of the bracing piece rotates to alternately in opposite directions, in operating condition, two sets of the bracing piece is reverse to rotate to expand, two sets of the bracing piece can rotate in opposite directions and reverse rotation, the lifting seat be used for with sliding component connects, the guardrail with base swing joint.
According to the working machine provided by the invention, the working machine further comprises a second driving mechanism, wherein the second driving mechanism is arranged on the lifting seat and is used for driving the second end of the supporting rod to slide relative to the lifting seat.
According to the telescopic boom provided by the invention, the guide structures extending along the length direction of the arm sections are arranged on the arm sections, and the parts of the two guide structures corresponding to any two adjacent arm sections are overlapped, so that the first driving mechanism can drive the sliding assembly to move along the length direction of the telescopic boom. The working bucket is hoisted on the sliding component, so that the working bucket can move along the length direction of the telescopic boom along with the sliding component. In the rescue process, the working bucket is hoisted on the sliding component, and the lifting angle and the telescopic length of the telescopic boom are adjusted, so that the working bucket can move to the position of a person to be rescued along the boom section. When the rescue workers enter the working bucket, the working bucket descends along the arm joint to finish the rescue process. When more people to be rescued are needed, the working bucket can move along the arm section in a reciprocating manner to transport the people to be rescued.
After the telescopic boom is positioned, the working bucket only needs to reciprocate along the boom section under the condition that more rescue workers need to be transported for many times after the positioning of the telescopic boom is finished, repeated telescoping, lifting and positioning of the telescopic boom are not needed, the operation process of the telescopic boom is simplified, the time for adjusting and positioning the telescopic boom for many times is saved, and the rescue efficiency can be effectively improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions in the related art, the drawings used in the description of the embodiments or the related art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a telescopic boom according to an embodiment of the present invention;
FIG. 2 is another angular view of a telescopic boom provided in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the view shown in FIG. 2;
fig. 4 is a partial enlarged view at a in fig. 3;
fig. 5 is a partial enlarged view at B in fig. 3;
FIG. 6 is a perspective view of the view shown in FIG. 5;
FIG. 7 is a schematic view of a structure of a bucket provided in an embodiment of the present invention;
FIG. 8 is a top view of the view shown in FIG. 7;
FIG. 9 is a schematic perspective view of the bucket of FIG. 7;
FIG. 10 is a schematic view of a work bucket in a collapsed configuration provided in an embodiment of the present invention;
fig. 11 is a schematic view of the structure of the connection of the sleeve and the arm segment provided in the embodiment of the present invention.
Reference numerals:
1. arm section; 2. a guide structure; 3. a sliding assembly; 301. a support; 302. a support wheel; 303. a mounting base; 304. a limiting wheel; 305. an elastic member; 4. a working bucket; 401. a base; 402. hoisting the base; 403. a support rod; 404. guard bars; 405. a second hoisting mechanism; 406. a second motor; 407. a roll shaft; 408. a limiting piece; 5. an avoidance groove; 6. a sleeve; 7. an inclined plane structure; 8. scaling ladder; 9. rescue trolley; 10. a first hoisting mechanism; 11. reinforcing ribs; 12. a support surface.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
When the number of the personnel to be rescued is more, the telescopic boom in the related art needs to be controlled to stretch, lift and position repeatedly, and the positioning difficulty of the telescopic boom is high, the time consumption for positioning for many times is long, and the rescue efficiency is easy to be delayed because the control of the telescopic boom is complex. In order to solve the problems that in the related art, when the number of people to be rescued is large, the telescopic boom needs to be controlled to repeatedly stretch, lift and position, and the operation is complicated, the effect of reducing the times of stretching, lifting and positioning of the telescopic boom is achieved, and the telescopic boom and the operation machine are provided in the embodiment of the invention.
The telescopic boom provided in the embodiment of the present invention is described below with reference to fig. 1 to 11.
Specifically, the telescopic boom comprises a boom section 1, a guiding structure 2, a sliding assembly 3 and a first driving mechanism.
The arm sections 1 are arranged in at least two, the at least two arm sections 1 are sleeved in sequence from inside to outside, and any two adjacent arm sections 1 are connected in a sliding mode. It should be noted that, the sliding connection structure between the adjacent arm segments 1 and the telescopic driving form of the arm segments 1 all belong to the content in the prior art, and the present application does not relate to the improvement of the above content, so that the description is omitted.
The number of the guide structures 2 is at least two, the guide structures 2 are in one-to-one correspondence with the number of the arm sections 1, and each guide structure 2 is respectively arranged on the corresponding arm section 1. For example, the guide structure 2 can be arranged directly on the arm segment 1 or indirectly on the arm segment 1, for details which will be described below. The two guide structures 2 corresponding to any adjacent two arm sections 1 are arranged partially overlapping, so that the sliding assembly 3 can run from one arm section 1 to the arm section 1 adjacent to the arm section 1. For example, the guide structure 2 may be provided as a guide groove.
The slide assembly 3 is movably disposed on the guide structures 2, and the slide assembly 3 is movable between any adjacent two of the guide structures 2. The sliding assembly 3 is used for hoisting the working bucket 4. For example, the sliding component 3 is provided with a hanging ring or a hanging hole, the working bucket 4 can be provided with a hanging hook, and the working bucket 4 is connected with the hanging ring or the hanging hole of the sliding component 3 through the hanging hook.
The first driving mechanism is used for driving the sliding assembly 3 to move.
According to the telescopic boom provided by the embodiment of the invention, the guide structures 2 extending along the length direction of the boom section 1 are arranged on the boom section 1, and the parts of the two guide structures 2 corresponding to any two adjacent boom sections 1 are overlapped, so that the first driving mechanism can drive the sliding assembly 3 to move along the length direction of the telescopic boom. The working bucket 4 is hoisted on the sliding component 3, so that the working bucket can move along the length direction of the telescopic boom along with the sliding component 3. In the rescue process, the working bucket 4 is hoisted on the sliding component 3, and the lifting angle and the telescopic length of the telescopic boom are adjusted, so that the working bucket 4 can move to the position of a person to be rescued along the arm section 1. When the rescue workers enter the working bucket 4, the working bucket 4 descends along the arm section 1 to finish the rescue process. When more people need to be rescued, the working bucket 4 can reciprocate along the arm section 1 to transport the people to be rescued.
After the telescopic boom provided by the embodiment of the invention is positioned, the working bucket 4 only needs to reciprocate along the arm section 1 under the condition that more people to be rescued need to be transported and rescued for many times after the positioning is finished, repeated telescoping, lifting and positioning of the telescopic boom are not needed, the operation process of the telescopic boom is simplified, the time for adjusting and positioning the telescopic boom for many times is saved, and the rescue efficiency can be effectively improved.
In addition, in the use process of the telescopic boom in the related art, the working bucket 4 is connected to the telescopic end of the telescopic boom, so that the telescopic boom cannot be abutted against the outer wall of a building. In addition, in the rescue process, the extension length of the telescopic boom is large, so that the stability is relatively poor in the process of driving the working bucket 4 to move by the telescopic boom. In the telescopic boom provided by the embodiment of the invention, the telescopic end of the telescopic boom does not need to be provided with the working bucket 4, so that the telescopic boom can be propped against the outer wall of a building in the rescue process, the two ends of the telescopic boom are supported, the telescopic boom is equivalent to a simply supported beam, the stability of the telescopic boom is better, and the sliding assembly 3 runs more stably when sliding along the length direction of the telescopic boom.
Referring to fig. 5 and 6, in some embodiments provided by the present invention, the telescopic boom further comprises a ramp structure 7. An inclined surface structure 7 is arranged between the supporting surfaces 12 of any two adjacent guide structures 2. So set up, through setting up inclined plane structure 7, slip subassembly 3 can shift between two adjacent guide structure 2 through inclined plane structure 7 for slip subassembly 3 is more smooth and easy in the transfer process, reduces the card of slip subassembly 3 and the impact that receives. The support surface 12 is a surface for carrying the sliding assembly 3. Taking the guide structure 2 in the form of a guide groove as an example, the bottom of the guide structure 2 is the supporting surface 12. Further, as shown in fig. 5 and 6, in the two adjacent guide structures 2, the guide structure 2 provided in the inner arm segment 1 is fixedly connected to the inclined surface structure 7, and the guide structure 2 provided in the outer arm segment 1 is slidably connected to the inclined surface structure 7. In this way, the inner arm segment 1 moves to any position relative to the outer arm segment 1, and the inclined surface structures 7 are located between the supporting surfaces 12 of the two adjacent guide structures 2, so that a transitional effect is achieved.
In some embodiments provided by the invention, any one arm segment 1 is provided with an installation space, and the installation spaces of any two adjacent arm segments 1 are communicated. The guide structures 2 are provided on the inner side walls of the corresponding installation spaces. The side that is equipped with guide structure 2 in the installation space still is equipped with the groove 5 that dodges that link up, dodges the extending direction in groove 5 and the extending direction of guide structure 2 the same, dodges the groove 5 and be used for supplying sliding component 3 to be connected with work fill 4. In the process that the sliding assembly 3 slides along the guide structure 2, the connecting structure between the sliding assembly 3 and the working bucket 4 operates in the avoidance groove 5.
By arranging the guide structure 2 in the installation space, the sliding assembly 3 can slide in the installation space, so that the installation space can form a protective effect on the sliding assembly 3. By the arrangement, on one hand, the sliding assembly 3 cannot collide and interfere with an external object in the sliding process, and the use safety of the telescopic boom is guaranteed. On the other hand, can avoid guide structure 2 to receive the wind and blow, drench and sun to reduce guide structure 2 corrosion's problem, and then prolong guide structure 2's maintenance cycle and life.
Referring to fig. 3-6, in some embodiments provided by the present invention, the space inside the arm segment 1 constitutes an installation space, and the guide structure 2 is disposed on the inner side wall of the arm segment 1, i.e., the guide structure 2 is disposed directly on the arm segment 1. The avoiding groove 5 is arranged on one side of the arm section 1 provided with the guiding structure 2. So set up, the slip subassembly 3 slides in the inside of arm festival 1, can make full use of the inside space of arm festival 1 for telescopic boom's overall structure is compacter.
Further, in order to ensure the structural strength of the arm segment 1, the telescopic boom further comprises a reinforcing rib 11. The reinforcing rib 11 is sleeved on the outer side of the arm section 1, and the reinforcing rib 11 is connected with the arm section 1 in a welding mode. For example, a reinforcing rib 11 is provided at least on the outside of the entrance to and exit from the arm segment 1 of the next stage of the arm segment 1.
Of course, the installation space is not limited to be arranged inside the arm segment 1, for example, as shown in fig. 11, in other embodiments provided by the present invention, the telescopic boom further includes at least two sleeves 6 sleeved in sequence from inside to outside, any adjacent sleeves 6 are slidingly connected, each sleeve 6 is connected with a corresponding arm segment 1, and the space inside the sleeve 6 forms the installation space. The guiding structure 2 is arranged on the inner side wall of the sleeve 6, the sleeve 6 is connected with the arm section 1, i.e. the guiding structure 2 is indirectly arranged on the arm section 1. The avoidance groove 5 is arranged on one side of the sleeve 6 provided with the guide structure 2. So set up, dodge groove 5 setting and be on sleeve pipe 6, arm festival 1 need not the fluting, and the intensity of arm festival 1 is higher to the change to arm festival 1 self structure is less, consequently is convenient for reform transform the upgrading to old telescopic boom equally.
Alternatively, the sleeve 6 may be welded to the arm segment 1 or by fasteners.
In some embodiments provided by the present invention, the telescopic boom further comprises an aerial ladder 8. The scaling ladder 8 comprises at least two ladder frames which are sleeved in sequence from inside to outside, any two adjacent ladder frames are connected in a sliding manner, and each ladder frame is connected with the corresponding arm section 1. So set up, telescopic boom's arm festival 1 is when expanding, and scaling ladder 8 also expands thereupon for rescue personnel or waiting for rescue personnel can climb scaling ladder 8. It should be noted that, the scaling ladder 8 belongs to the product in the prior art, and the present application does not relate to the improvement of the sliding connection structure between the ladder frames, so that the description thereof will not be repeated.
Further, the aerial ladder 8 is arranged at the top of the arm section 1, and the aerial ladder 8 is supported through the arm section 1, so that the stability of the aerial ladder 8 is better, and the safety of the aerial ladder 8 is improved. The top of the arm segment 1 is a side far away from the ground when the telescopic boom is in an inclined state.
In some embodiments provided by the invention, the telescopic boom further comprises a rescue trolley 9. The rescue trolley 9 is slidably provided within the aerial ladder 8, and the rescue trolley 9 can move in the length direction of the aerial ladder 8. For example, a guide rail is arranged on the ladder frame, the rescue trolley 9 can slide along the guide rail, and the rescue trolley 9 can be driven by a hoisting mechanism to lift along the guide rail on the aerial ladder 8. The hoisting mechanism can drive the rescue trolley 9 to lift along the guide rail on the aerial ladder 8 through the steel wire rope and the pulley. So set up, the user can go up and down along scaling ladder 8 through rescue dolly 9, shortens the climbing time, reduces user intensity of labour to improve rescue efficiency.
Referring to fig. 11, in some embodiments provided by the present invention, the first driving mechanism includes a first hoisting mechanism 10, and the first hoisting mechanism 10 is connected to the sliding assembly 3 through a flexible member, which may be a wire rope, for example. In particular, the first hoisting mechanism 10 may be arranged on the arm segment 1 at the head end or on the sleeve 6 at the head end, or the first hoisting mechanism 10 may be mounted on a mounting platform of the work machine for mounting the telescopic boom. One end of the flexible member is connected to the first winding mechanism 10, and the other end is wound around a pulley provided in the installation space and connected to the sliding assembly 3. In use, when it is desired to raise the slider assembly 3 along the arm segment 1, the first winding mechanism 10 tightens the flexure, which pulls the slider assembly 3 up along the arm segment 1. When the sliding component 3 is required to descend along the arm section 1, the first hoisting mechanism 10 loosens the flexible part, the sliding component 3 moves downwards along the arm section 1 under the action of gravity, the rotating speed of the first hoisting mechanism 10 is controlled, the descending speed of the sliding component 3 can be regulated, and the descent control effect is realized.
Of course, the first drive mechanism is not limited to being provided in the form of the first hoisting mechanism 10, and for example, in other embodiments provided by the invention, the first drive mechanism includes a gear, a rack, and a first motor. The first motor is arranged on the sliding component 3, the gear is connected with an output shaft of the first motor, the rack extends along the guiding structure 2, and the gear is meshed with the rack. The first motor drives the gear wheel to rotate, and the gear wheel is meshed with the rack, so that the sliding assembly 3 is driven to move along the guiding structure 2.
Referring to fig. 4, in some embodiments provided by the present invention, the sliding assembly 3 includes a support 301 and a support wheel 302. The support 301 is adapted to be connected to the bucket 4, for example, the support 301 is provided with a hanging ring or a hanging hole. The support wheel 302 is rotatably connected to the support 301 and the support wheel 302 is adapted to cooperate with the guide structure 2, for example the support wheel 302 is placed in a guide channel. In the actual rescue process, the telescopic boom is usually in an inclined state, so that the sliding assembly 3 is always attached to the guide structure 2 under normal conditions. Of course, in order to further improve the safety of use, in some embodiments provided by the present invention, the sliding assembly 3 further includes a mounting seat 303, a limiting wheel 304, and an elastic member 305.
One end of the mounting seat 303 is slidably connected with the support 301, and the other end of the mounting seat 303 extends out of the avoidance groove 5. The limiting wheel 304 is arranged at the part of the mounting seat 303 extending out of the avoidance groove 5. The elastic member 305 connects the mounting seat 303 and the support 301, and the elastic member 305 is used for driving one end of the mounting seat 303 provided with the limiting wheel 304 to move towards the direction approaching the support 301.
In the use process, the limiting wheel 304 can be propped against the outer wall of the arm segment 1 or the outer wall of the sleeve 6, or the limiting wheel 304 is spaced from the outer wall of the arm segment 1 or the outer wall of the sleeve 6 by a preset distance, and the preset distance is smaller than the depth of the guide structure 2. In this way, the supporting wheel 302 can be prevented from being separated from the guiding structure 2 by the limiting wheel 304 as a safety, thereby ensuring the use safety. By providing the spacing wheel 304 on the mounting seat 303 in sliding engagement with the support 301, as shown in fig. 4 and 5, the spacing between the spacing wheel 304 and the support 301 can be gradually increased to accommodate the thickness variation of the ramp structure 7 as the slide assembly 3 is moved to the ramp structure 7. Through the driving effect of the elastic piece 305 to the mounting seat 303, the mounting seat 303 can drive the limiting wheel 304 to reset, and the supporting wheel 302 can be abutted against the inclined surface structure 7 when passing through the inclined surface structure 7, so that the safety and stability of the sliding assembly 3 during transferring between two adjacent guiding structures 2 are ensured.
In some embodiments provided by the invention, both the guide structure and the slide assembly are disposed at the bottom of the arm sections to move the bucket between the spaces below the arm sections. So set up, in rescue process, can make the flexible end of flexible cantilever crane lean on the building external wall of rescue position top, the work fill can be in the below of flexible cantilever crane to rescue position, will wait to rescue personnel and shift. Rescue locations include, but are not limited to, balconies and windows.
Alternatively, the elastic member 305 may be a spring, a tension spring, or a nitrogen spring.
The embodiment of the invention also provides a working machine.
Specifically, the work machine includes the work implement 4 and the telescopic boom as described above.
It should be noted that, the working machine includes the telescopic boom and all advantages of the telescopic boom, which are not described herein. In addition, work machines include, but are not limited to, boarding vehicles, fire engines, and other overhead work vehicles.
In some embodiments provided herein, the work machine further includes a second hoist mechanism 405. A second hoisting mechanism 405 is provided on the bucket 4, the second hoisting mechanism 405 being connected to the sliding assembly 3 by means of a flexible member. I.e. the bucket 4 is connected to the slide assembly 3 via the second hoisting mechanism 405 and the flexible member. Specifically, one end of the flexible member is connected to the second hoisting mechanism 405, and the other end of the flexible member is connected to the sliding assembly 3.
So arranged, the work bucket 4 can be lifted and lowered by the second hoisting mechanism 405. For example, when the height of the disaster position is low, after the telescopic boom is positioned, the working bucket 4 can be driven by the second hoisting mechanism 405 to directly ascend to the disaster position so as to transfer the personnel to be rescued, and when the height of the disaster position is high, the working bucket 4 can be moved and ascended along the length direction of the telescopic boom, so that the flexibility of rescue of the working machine can be improved. In addition, when the height position of the telescopic boom is positioned inaccurately, the height position of the working bucket 4 can be adjusted through the second hoisting mechanism 405, so that the working bucket 4 is aligned with the position of the person to be rescued, the adjusting time of the telescopic boom is shortened, and the rescue efficiency is improved.
In some embodiments provided by the present invention, as shown in fig. 7-10, the bucket 4 includes a base 401, a hoist mount 402, a support bar 403, and a guard rail 404.
The lifting seat 402 and the base 401 are disposed in parallel up and down, for example, in a practical use state, the lifting seat 402 is located above the base 401. Two sets of support rods 403 are disposed between the lifting base 402 and the base 401, each set of support rods 403 includes at least two support rods 403, as shown in the figure, each set of support rods 403 includes two support rods 403, for example, two sets of support rods 403 are disposed on two opposite sides of the base 401 respectively. The bucket 4 includes an operating state in which the two sets of support bars 403 are rotated toward each other to intersect, and a folded state in which the two sets of support bars 403 are rotated reversely to be unfolded. The hoist mount 402 is adapted to be coupled to the sliding assembly 3, for example, a second hoist is provided on the hoist mount 402. The guard bar 404 is movably connected with the base 401. For example, a plurality of guardrails 404 are provided, a plurality of guardrails 404 are arranged along the peripheral side of the base 401, and each guardrail 404 is rotatably connected to the base 401. Of course, the guard rail 404 and the base 401 may be detachably connected.
Specifically, the working state and the folded state of the bucket 4 will be described with reference to fig. 7 to 10. For ease of discussion, assume that the left side in fig. 7 is the first side of the bucket 4 and the right side in fig. 7 is the second side of the bucket 4. Referring to fig. 9, in the working state, the end of the support bar 403 on the first side of the working bucket 4 connected to the lifting base 402 is located on the first side of the working bucket 4, and the end of the support bar 403 on the second side of the working bucket 4 connected to the lifting base 402 is located on the second side of the working bucket 4, i.e., the support bars 403 all extend along the height direction of the working bucket 4. Referring to fig. 10, in the folded state, one end of the support bar 403 on the first side of the bucket 4 connected to the hoist mount 402 slides to the second side of the bucket 4, one end of the support bar 403 on the second side of the bucket 4 connected to the hoist mount 402 slides to the first side of the bucket 4, that is, both ends of the support bar 403 extend toward both sides of the bucket 4, and the support bars 403 on both sides of the bucket 4 are disposed in a cross.
When not in use, the working bucket 4 can be detached from the telescopic boom, and the working bucket 4 is switched to a folded state, so that the space occupied by the working bucket 4 is reduced, and the load of the telescopic boom is lightened. When the lifting device is used, the lifting seat 402 is connected with the sliding component 3, and the base 401 pulls the supporting rod 403 under the gravity action of the base 401 in the lifting process of the working bucket 4, so that the supporting rod 403 moves to a vertical state, and the working bucket 4 is switched to a working state in the lifting process of the working bucket 4. For the guardrails 404, the guardrails 404 may be manually adjusted, for example, when the working bucket 4 needs to be folded, each guardrail 404 may be folded inwards, and when the working bucket 4 needs to be used, the supporting rod 403 is erected, and then each guardrail 404 is erected. After the guard bar 404 is erected, the guard bar 404 and the support bar 403 can be connected and fixed by a pin shaft.
In some embodiments of the present invention, the lifting base 402 is provided with a plurality of sliding grooves, and the supporting rod 403 may be slidably connected to the corresponding sliding groove. Further, a limiting piece 408 is arranged at the end of the chute, in the working state, the supporting rod 403 abuts against the limiting piece 408, and the limiting piece 408 is used for enabling an included angle between the supporting rod 403 and the base 401 to be smaller than 90 degrees. The included angle between the supporting rod 403 and the base 401 is smaller than 90 degrees, so that the supporting rod 403 can be ensured to smoothly reset along the chute in the folding process.
In some embodiments of the present disclosure, the work machine further includes a second drive mechanism. A second driving mechanism is disposed on the lifting base 402, and the second driving mechanism is used for driving the second end of the supporting rod 403 to slide relative to the lifting base 402. Thus, the second driving mechanism drives the support bar 403 to switch the state of the bucket 4, and the stability and safety of the bucket 4 can be improved.
Optionally, the second drive mechanism includes a second motor 406, a roller shaft 407, and a flexure. The second motors 406 are provided in a pair, and the pair of second motors 406 are respectively provided at both sides of the hoist mount 402. The rollers 407 are arranged in a pair, the rollers 407 are respectively arranged at two sides of the lifting seat 402, and the second motor 406 is used for driving the corresponding rollers 407 to rotate. The roller shaft 407 is connected to a set of support rods 403 on the side by a flexible member. When the working state needs to be switched to, the second motor 406 drives the roll shaft 407 to rotate, the roll shaft 407 tightens the flexible member, and the flexible member pulls one end, connected with the lifting seat 402, of the support rod 403 to move to the side where the roll shaft 407 is located. When the folding state is required to be switched, the second motor 406 reversely rotates, the roll shaft 407 reversely rotates to loosen the flexible piece, under the action of gravity of the lifting seat 402, one end, connected with the lifting seat 402, of the support rod 403 moves away from the roll shaft 407, the reverse rotation speed of the second motor 406 is controlled, the folding speed of the working bucket 4 can be adjusted, and the safe and controllable folding process is ensured.
The second motor 406 may drive the roller shaft 407 to rotate by belt transmission, gear transmission, or chain transmission.
Of course, the second driving mechanism is not limited to the above-described form, and for example, the second driving mechanism includes a screw, a nut, and a driving motor. The lead screw is rotatably connected with the lifting seat 402. Each set of support rods 403 is integrally connected. The number of nuts is two, and each nut is slidably connected with the lifting seat 402. Each group of support rods 403 is rotationally connected with corresponding nuts, the screw rod is provided with two sections of threads with opposite rotation directions, the screw rod is respectively in threaded connection with the two nuts, the driving motor drives the screw rod to rotate, and the two nuts are mutually close to or far away from each other in the process of rotating the screw rod, so that the working bucket 4 is subjected to state switching.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (14)

1. A telescopic boom, comprising:
at least two arm sections (1) which are sleeved in sequence from inside to outside, and any two adjacent arm sections (1) are connected in a sliding manner;
the guide structures (2) are respectively arranged on the corresponding arm sections (1) and correspond to the number of the arm sections (1) one by one, the guide structures (2) extend along the length direction of the arm sections (1), and the two guide structures (2) corresponding to any two adjacent arm sections (1) are partially overlapped;
the sliding component (3) is arranged on the guide structures (2) and can move between any two adjacent guide structures, and the sliding component (3) is used for hoisting the working hopper (4);
and the first driving mechanism is used for driving the sliding assembly (3) to move.
2. The telescopic boom according to claim 1, characterized in that any arm segment (1) is provided with a mounting space, the mounting spaces of adjacent arm segments (1) are communicated, the guide structure (2) is arranged on the corresponding inner side wall of the mounting space, one side of the mounting space provided with the guide structure (2) is further provided with a through avoidance groove (5), the extending direction of the avoidance groove (5) is the same as that of the guide structure (2), and the avoidance groove (5) is used for connecting the sliding assembly (3) with the working bucket (4).
3. Telescopic boom according to claim 2, characterized in that the space inside the boom section (1) constitutes the installation space;
or, the telescopic boom further comprises at least two sleeves (6) sleeved in sequence from inside to outside, any two adjacent sleeves (6) are connected in a sliding mode, each sleeve (6) is connected with the corresponding arm segment (1), and the space inside the sleeve (6) forms the installation space.
4. Telescopic boom according to claim 1, further comprising a ramp structure (7), said ramp structure (7) being arranged between the support surfaces (12) of any adjacent two of said guide structures (2).
5. Telescopic boom according to any of claims 1-4, further comprising an aerial ladder (8), said aerial ladder (8) comprising at least two ladder frames nested one inside the other, sliding connection between any adjacent two of said ladder frames, each of said ladder frames being connected to a corresponding arm segment (1).
6. The telescopic boom according to claim 5, further comprising a rescue trolley (9), the rescue trolley (9) being slidably arranged within the aerial ladder (8) and the rescue trolley (9) being movable in a length direction of the aerial ladder.
7. Telescopic boom according to claim 6, characterized in that the aerial ladder is arranged on top of the boom section (1).
8. A telescopic boom according to claim 2 or 3, characterized in that the sliding assembly (3) comprises a support (301) and a support wheel (302);
the support (301) is used for being connected with the working bucket (4), and the supporting wheel (302) is rotatably connected with the support (301) and is used for being matched with the guide structure (2).
9. Telescopic boom according to claim 8, characterized in that the sliding assembly (3) further comprises a mounting seat (303), a limit wheel (304) and an elastic element (305);
one end of mount pad (303) with support (301) sliding connection, the other end of mount pad (303) is followed dodge groove (5) and stretch out, spacing wheel (304) are installed mount pad (303) stretch out dodge the part in groove (5), elastic component (305) are connected mount pad (303) with support (301), elastic component (305) are used for the drive mount pad (303) are equipped with the one end of spacing wheel (304) is to being close to the direction of support (301) is removed.
10. The telescopic boom of claim 8, wherein the guide structure and the slide assembly are both disposed at a bottom of the boom section to move the work bucket between spaces below the boom section.
11. A working machine, characterized by comprising a working bucket (4) and a telescopic boom according to any of claims 1-10.
12. The work machine of claim 11, further comprising a second hoisting mechanism (405), the second hoisting mechanism (405) being provided on the work bucket (4), the second hoisting mechanism (405) being connected to the sliding assembly (3) by a flexible member.
13. Work machine according to claim 11, characterized in that the work bucket (4) comprises a base (401), a lifting seat (402), a support bar (403) and a railing (404);
hoist and mount seat (402) with parallel arrangement about base (401), hoist and mount seat (402) with be equipped with two sets of bracing piece (403) between base (401), every bracing piece (403) first end with base (401) rotate to be connected, the second end all with hoist and mount seat (402) sliding connection, the work fill includes operating condition and folding state, in folding state, two sets of bracing piece (403) rotate to alternately in opposite directions, in operating condition, two sets of bracing piece (403) reverse rotation is to expanding, hoist and mount seat (402) be used for with sliding component (3) are connected, guardrail (404) with base (401) swing joint.
14. The work machine of claim 13, further comprising a second drive mechanism disposed on the hoist mount (402), the second drive mechanism for driving the second end of the support bar (403) to slide relative to the hoist mount (402).
CN202310070320.3A 2023-01-16 2023-01-16 Telescopic boom and working machine Pending CN116062630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310070320.3A CN116062630A (en) 2023-01-16 2023-01-16 Telescopic boom and working machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310070320.3A CN116062630A (en) 2023-01-16 2023-01-16 Telescopic boom and working machine

Publications (1)

Publication Number Publication Date
CN116062630A true CN116062630A (en) 2023-05-05

Family

ID=86174579

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310070320.3A Pending CN116062630A (en) 2023-01-16 2023-01-16 Telescopic boom and working machine

Country Status (1)

Country Link
CN (1) CN116062630A (en)

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