CN114517583B - Work machine - Google Patents
Work machine Download PDFInfo
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- CN114517583B CN114517583B CN202011299085.XA CN202011299085A CN114517583B CN 114517583 B CN114517583 B CN 114517583B CN 202011299085 A CN202011299085 A CN 202011299085A CN 114517583 B CN114517583 B CN 114517583B
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- Prior art keywords
- arm
- support
- cab
- rotation axis
- eccentric distance
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
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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
- B66C23/82—Luffing gear
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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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
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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
- B66C23/84—Slewing gear
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention provides a working machine, which comprises a vehicle body and a turntable; the vehicle body is provided with a rotary assembly positioned at the rear of the cab; the turntable comprises a supporting seat, a supporting arm and a switching structure; the supporting seat is arranged on the rotary assembly; the support arm is installed on the supporting seat to can rotate to the top of driver's cabin for the axis of revolution of revolving stage, install the switching structure on the support arm. The invention ensures the mechanical strength of the turntable, is not limited to the eccentric arrangement of the turntable, ensures that the turntable can reach a larger eccentric distance, ensures that the arm support connected with the turntable can be arranged above the cab of the operation machine, fully utilizes the spare space above the cab, and can effectively increase the arrangeable length of the arm support.
Description
Technical Field
The invention relates to the technical field of working machines, in particular to a working machine.
Background
The working machine is an important component in equipment industry and is mainly used for earth-rock construction, pavement maintenance, lifting loading and unloading, fire-fighting operation and the like, so that the working machine can be classified into lifting machines, piling machines, pavement machines, compaction machines, fire-fighting vehicles and the like according to the types.
For the working machine requiring rotation operation, the turntable is an important component part, the upper part of the turntable is hinged with the end part of the arm support, the lower part of the turntable is fixed with the slewing bearing structure, and the slewing bearing structure is arranged on the fixed turret. During the rotation operation, the turntable and the rotation support structure rotate on the horizontal plane relative to the fixed turret under the drive of the driving mechanism, so that the tail end of the arm support can reach different operation positions. Meanwhile, the upper part of the turntable is also hinged with the fixed end of the amplitude changing mechanism, and the telescopic end of the amplitude changing mechanism is hinged with the arm support, so that the pitching angle of the arm support can be changed by controlling the telescopic of the amplitude changing mechanism.
As shown in fig. 1, the conventional turntable generally includes a bottom plate 101 and a side plate 102, the side plate 102 is mounted on the bottom plate 101, a boom hinge hole 103 for hinge-connecting with one end of a boom and an amplitude variation mechanism hinge hole 104 for hinge-connecting with a fixed end of an amplitude variation mechanism are provided on the side plate 102, and a front sealing plate 105 for connecting with the bottom plate 101 is welded on the side plate 102. However, the design of the turntable structure is unreasonable, the eccentric distance of the arm support hinge hole relative to the rotation axis is too small, and when the arm support hinge hole is arranged at a larger eccentric distance relative to the rotation axis, the stress at the connecting part between the front sealing plate and the bottom plate is worsened.
Therefore, the existing turntable has poor mechanical strength, the eccentric arrangement of the turntable is limited, and the arrangement of the turntable is difficult to fully utilize the vacant space above the cab of the working machine, so that the spreadable length of the arm support is seriously influenced.
Disclosure of Invention
The invention provides a working machine which is used for solving the problems that the existing turntable has poor mechanical strength, the eccentric arrangement of the turntable is limited, and the arrangement of the turntable is difficult to fully utilize the vacant space above a cab of the working machine.
The present invention provides a work machine including: the vehicle body and the turntable; the vehicle body is provided with a rotary assembly positioned at the rear of the cab; the turntable comprises a supporting seat, a supporting arm and a switching structure; the supporting seat is arranged on the rotary assembly; the support arm is mounted on the support seat and can rotate to the upper side of the cab relative to the rotation axis of the turntable, and the switching structure is mounted on the support arm.
According to the working machine provided by the invention, the first end of the supporting arm is mounted on the supporting seat, and the eccentric distance of the second end of the supporting arm relative to the rotation axis of the turntable is larger than the distance between the rear end of the cab and the rotation axis.
According to the working machine provided by the invention, the first end of the supporting arm is arranged at the upper end of the supporting seat, and the height of the supporting arm and the height of the upper end of the supporting seat are higher than the top of the cab.
According to the working machine provided by the invention, the supporting arm is horizontally arranged.
According to the working machine provided by the invention, the support seat comprises the base and the tower, the base is arranged on the slewing bearing structure of the slewing assembly, the lower end of the tower is connected with the base, and the upper end of the tower is connected with the first end of the supporting arm.
According to the working machine provided by the invention, the wall of the tower barrel is provided with the first pipe penetrating opening and the overhaul opening, the end face of the base is provided with the second pipe penetrating opening, and the second pipe penetrating opening is positioned in the area surrounded by the tower barrel; and/or a plurality of circumferentially arranged mounting holes are formed in the base, and the base is connected with the slewing bearing structure through a bolt locking assembly penetrating through the mounting holes.
According to the working machine provided by the invention, the switching structure comprises the articulated arm, the articulated arm is arranged on the supporting arm and is arranged along the length direction of the supporting arm, the articulated arm is provided with the first articulated structure and the second articulated structure, and the first articulated structure and the second articulated structure are arranged at intervals along the length direction of the articulated arm.
According to the work machine provided by the invention, the articulated arm comprises a first side plate, a second side plate and a sealing plate, wherein the first side plate and the second side plate are spaced from each other and are arranged side by side, and the sealing plate is connected between the first side plate and the second side plate.
According to the working machine provided by the invention, the base of the supporting seat is a bottom plate, the supporting arm is a supporting plate, and the first side plate and the second side plate of the articulated arm are vertically arranged on the supporting plate.
The invention provides a working machine, which further comprises an arm support and an amplitude variation mechanism; the first hinge structure is hinged with the end part of the arm support, the second hinge structure is hinged with one end of the amplitude variation mechanism, and the other end of the amplitude variation mechanism is hinged with the middle part of the arm support, wherein the eccentric distance of the first hinge structure relative to the rotation axis of the turntable is larger than that of the second hinge structure relative to the rotation axis; the eccentric distance of the first hinge structure relative to the rotation axis is larger than the eccentric distance of the rear end of the cab relative to the rotation axis and smaller than the eccentric distance of the front end of the cab relative to the rotation axis, or the eccentric distance of the first hinge structure relative to the rotation axis is larger than the eccentric distance of the front end of the cab relative to the rotation axis; the second hinge structure has an eccentric distance with respect to the swing axis that is greater than an eccentric distance of the rear end of the cab with respect to the swing axis and less than an eccentric distance of the front end of the cab with respect to the swing axis.
According to the working machine provided by the invention, the first hinge structure and the second hinge structure are hinge holes formed on the hinge arms.
According to the working machine provided by the invention, the supporting seat of the turntable is connected with the rotation assembly, the supporting arm is arranged on the supporting seat, the turntable has higher mechanical strength based on reliable connection between the supporting seat and the supporting arm, the switching structure is convenient to arrange at any position on the supporting arm, the eccentric arrangement of the turntable is not limited, the turntable can reach larger eccentric distance due to the fact that the supporting arm can rotate to the upper part of the cab of the working machine, and when the switching structure is used for connecting the arm support, the arm support can be arranged above the cab, so that the vacant space above the cab is fully utilized, and the arrangeable length of the arm support is effectively prolonged.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, 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 view of a conventional turntable;
FIG. 2 is a schematic illustration of a configuration of an upper boom of a work machine in a contracted state provided by the present disclosure;
FIG. 3 is a schematic view of an upper boom of a work machine in an extended configuration;
fig. 4 is a schematic perspective view of a turntable provided by the present invention;
FIG. 5 is a schematic diagram of a front view of a turntable according to the present invention;
fig. 6 is a schematic view of the structure of the articulated arm provided by the present invention.
Reference numerals:
101: a bottom plate; 102: a side plate; 103: arm support hinge holes;
104: a luffing mechanism hinge hole; 105: a front sealing plate; 1: a vehicle body;
2: a turntable; 3: a swivel assembly; 4: a cab;
5: arm support; 21: a support base; 211: a base;
212: a tower; 22: a support arm; 23: an articulated arm;
231: a first hinge structure; 232: a second hinge structure; 233: a first side plate;
234: a second side plate; 235: a sealing plate; 6: and an amplitude variation mechanism.
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.
The work machine of the present invention is described below in connection with fig. 2-6.
As shown in fig. 2 to 5, the present embodiment provides a work machine including: a vehicle body 1, a turntable 2 and a switching structure; the vehicle body 1 is provided with a rotary assembly 3 positioned behind a cab 4; the turntable 2 comprises a supporting seat 21 and a supporting arm 22; the supporting seat 21 is arranged on the rotary assembly 3; the support arm 22 is attached to the support base 21, and is rotatable to a position above the cab 4 with respect to the rotation axis of the turntable 2, and the support arm 22 is attached to an adapter structure.
Specifically, in this embodiment, the support base 21 of the turntable 2 is connected with the revolving assembly 3, the support arm 22 is mounted on the support base 21, based on reliable connection between the support base 21 and the support arm 22, the turntable 2 has higher mechanical strength, the revolving structure is convenient to be arranged at any position on the support arm 22, the eccentric arrangement of the turntable 2 is ensured not to be limited, the support arm 22 can revolve to the upper side of the cab 4 of the working machine, the turntable 2 can reach a larger eccentric distance, and when the revolving structure is used for connecting the arm support 5, the arm support 5 can be arranged above the cab 4, so that the free space above the cab 4 is fully utilized, and the spreadable length of the arm support 5 is effectively increased.
It should be noted here that the working machine shown in the present embodiment may be a crane, a concrete pump truck, a crane, a fire truck, or the like capable of performing a swing operation, and the turntable shown in the present embodiment may be mounted on a swing assembly of these working machines. The support base 21 shown in this embodiment can be understood as a structural member having a strong mechanical structure, and the support base 21 is directly mounted on the slewing bearing structure of the slewing assembly 3. The support arm 22 shown in the present embodiment may be designed in a long plate shape, and one end of the support arm 22 may be mounted on the support seat 21, the other end of the support arm 22 may extend from the outside of the support seat 21, and the middle portion of the support arm 22 may be mounted on the support seat 21, so long as the support arm 22 is ensured to be rotatable to the upper side of the cab 4.
Meanwhile, the supporting arm 22 in the present embodiment may be disposed horizontally or obliquely; in the case where the support arm 22 is disposed horizontally, the support arm 22 should be disposed integrally at a height higher than the top of the cab 4; in the case where the support arm 22 is provided obliquely, one end of the support arm 22 connected to the support seat 21 may be provided at a lower level than the top of the cab 4, and a section of the support arm 22 near the other end thereof may be provided at a higher level than the top of the cab 4.
In addition, in order to facilitate the connection between the turntable 2 and the arm rest 5, the switching structure shown in the present embodiment may be provided as a hinge structure.
As shown in fig. 2 and 4, in order to ensure that the turntable 2 can reach a large eccentric distance, in this embodiment, the first end of the support arm 22 is mounted on the support seat 21, and the eccentric distance of the second end of the support arm 22 with respect to the rotation axis of the turntable 2 is greater than the distance between the rear end of the cab 4 and the rotation axis, so that, when the support arm 22 in this embodiment rotates, the second end of the support arm 22 can rotate right above the cab 4, even to the front of the cab 4.
As shown in fig. 2 and 3, in order to prevent the support arm 22 from interfering with the cab 4 during the rotation, the first end of the support arm 22 is mounted on the upper end of the support seat 21, and the height of the support arm 22 and the upper end of the support seat 21 are both higher than the top of the cab 4.
It should be noted here that, in the case where the upper ends of the support brackets 21 are each provided at a height lower than the top of the cab 4, since the first ends of the support arms 22 are mounted to the upper ends of the support brackets 21, it is only necessary to provide a section of the support arms 22 near the second ends thereof at a height higher than the top of the cab 4.
As shown in fig. 2 and 3, in the case where the end of the support arm 22 connected to the support seat 21 is disposed at a higher level than the top of the cab 4, the present embodiment can dispose the support arm 22 in a horizontally disposed state.
Based on the improvement of the above embodiment, the support base 21 in this embodiment includes a base 211 and a tower 212, the base 211 is mounted on the slewing bearing structure, the lower end of the tower 212 is connected to the base 211, and the upper end of the tower 212 is connected to the first end of the support arm 22.
As shown in fig. 4 to 5, the base 211 in this embodiment may be a circular base plate matched with a slewing bearing structure, and the tower 212 may be vertically installed on the base 211, and because the tower 212 is circular, the anti-overturning performance is strong, so that a better mechanical strength can be achieved based on the connection structure of the base 211 and the tower 212.
Further, in the case that the working machine shown in the embodiment is a concrete pump truck, the embodiment may further provide a first pipe penetrating opening and an access opening on the wall of the tower 212, where the first pipe penetrating opening and the access opening are provided on the wall of the tower 212 in a manner of being arranged oppositely, and the access opening is convenient for a worker to overhaul the turntable and install the conveying pipe on the turntable; a second pipe penetrating opening is formed in the end face of the base 211, and the second pipe penetrating opening is located in an area surrounded by the tower 212. Here, by providing the first pipe penetrating opening and the second pipe penetrating opening, it is convenient to sequentially pass the conveying pipe on the concrete pump truck through the first pipe penetrating opening and the second pipe penetrating opening, and be connected with the pumping system on the truck body 1.
Further, in order to ensure reliable connection between the base 211 and the slewing bearing structure, a plurality of circumferentially arranged mounting holes are formed in the base 211, and the base 211 and the slewing bearing structure are connected by a bolt locking assembly passing through the mounting holes.
Based on the improvement of the above embodiment, the switching structure in this embodiment includes the hinge arm 23, the hinge arm 23 is mounted on the support arm 22 and is disposed along the length direction of the support arm 22, the hinge arm 23 is provided with the first hinge structure 231 and the second hinge structure 232, and the first hinge structure 231 and the second hinge structure 232 are disposed at intervals along the length direction of the hinge arm 23.
The first hinge structure 231 and the second hinge structure 232 in this embodiment are hinge holes formed on the hinge arm 23.
As shown in fig. 2, the present embodiment may specifically provide that the eccentric distance D1 of the first hinge structure 231 with respect to the rotation axis of the turntable 2 is greater than the eccentric distance D2 of the second hinge structure 232 with respect to the rotation axis of the turntable 2; meanwhile, the eccentric distance D1 of the first hinge structure 231 with respect to the rotation axis shown in the present embodiment is greater than the eccentric distance D3 of the rear end of the cab 4 with respect to the rotation axis and smaller than the eccentric distance D4 of the front end of the cab 4 with respect to the rotation axis, or the eccentric distance D1 of the first hinge structure 231 with respect to the rotation axis is greater than the eccentric distance D4 of the front end of the cab 4 with respect to the rotation axis, so that the first hinge structure 231 is distributed above or in front of the cab 4 in the case where the hinge arm 23 rotates above the cab 4.
Meanwhile, the eccentric distance D2 of the second hinge structure 232 with respect to the rotation axis shown in the present embodiment is greater than the eccentric distance D3 of the rear end of the cab 4 with respect to the rotation axis and smaller than the eccentric distance D4 of the front end of the cab 4 with respect to the rotation axis, so that the second hinge structure 232 is distributed above the cab 4 in the case where the hinge arm 23 rotates above the cab 4.
As shown in fig. 3, based on the above arrangement structure of the first hinge structure 231 and the second hinge structure 232, the present embodiment may hinge the first hinge structure 231 with the end portion of the boom 5, hinge the second hinge structure 232 with one end of the luffing mechanism 6, and hinge the other end of the luffing mechanism 6 with the middle portion of the boom 5.
Since the boom 5 generally includes a plurality of boom segments, the boom is sequentially a first boom, a second boom, …, and an nth boom, where N is a natural number greater than or equal to 2, which are sequentially connected from a head end to a tail end. Here, the first hinge structure 231 shown in this embodiment is hinged to the head end of the first arm, the second hinge structure 232 is hinged to one end of the luffing mechanism 6, and the other end of the luffing mechanism 6 is hinged to the middle of the first arm, where the luffing mechanism 6 may be a hydraulic cylinder as known in the art.
As shown in fig. 5, in order to better provide the first hinge structure 231 and the second hinge structure 232 on the hinge arm 23 and provide a space for avoiding the deflection of the first arm and the luffing mechanism 6, the hinge arm 23 shown in this embodiment includes a first side plate 233, a second side plate 234, and a sealing plate 235, where the first side plate 233 and the second side plate 234 are spaced apart from each other and arranged side by side, and the sealing plate 235 is connected between the first side plate 233 and the second side plate 234.
As shown in fig. 4 and 5, the hinge arm 23 in this embodiment includes a first arm section and a second arm section, the first arm section and the second arm section are arranged at an obtuse angle, one end of the first arm section is close to the rotation axis of the turntable 2, the other end of the first arm section is far away from the rotation axis of the turntable 2 and is connected with one end of the second arm section, the other end of the second arm section is provided with a first hinge structure 231, the joint of the first arm section and the second arm section is provided with a second hinge structure 232, and the height of the first hinge structure 231 is higher than that of the second hinge structure 232.
It should be noted that, the base of the supporting seat in this embodiment is a bottom plate, the supporting arm is a supporting plate, and the first side plate and the second side plate of the hinge arm are vertically installed on the supporting plate.
As shown in fig. 3-5, the first arm segment of the present embodiment is mounted on a support arm 22. The sealing plate 235 in this embodiment is provided with two sealing plates, one of which is located at the first arm section of the hinge arm 23 and the other of which is located at the second arm section of the hinge arm 23, so that the hinge arm 23 can be ensured to have a better mechanical strength.
In summary, the working machine according to the present embodiment is improved by the conventional turntable, the support base 21 located at the lower layer is installed on the slewing bearing structure of the slewing assembly 3, and the support arm 22 is installed on the upper side of the support base 21 to form an upper layered structure and a lower layered structure, so that the turntable 2 has higher mechanical strength, and can be pivoted above the cab 4 of the working machine, so that the turntable 2 can reach a larger eccentric distance, and the arm support 5 can be arranged above the cab 4 based on the arrangement of the hinge arm 23 on the support arm, so that the available space above the cab 4 is fully utilized, and the arrangeable length of the arm support 5 is effectively increased.
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 (7)
1. A work machine, comprising:
the vehicle body is provided with a rotary assembly positioned behind the cab;
the turntable comprises a supporting seat, a supporting arm and a switching structure; the supporting seat is arranged on the rotary assembly; the support arm is arranged on the support seat and can rotate to the upper part of the cab relative to the rotation axis of the turntable, and the switching structure is arranged on the support arm; the switching structure is used for being connected with the arm support, so that the arm support can be arranged above the cab;
the support arm is horizontally arranged, the first end of the support arm is arranged at the upper end of the support seat, and the height of the support arm and the height of the upper end of the support seat are higher than the top of the cab;
the switching structure comprises an articulated arm, wherein the articulated arm is arranged on the supporting arm and is arranged along the length direction of the supporting arm, a first articulated structure and a second articulated structure are arranged on the articulated arm, and the first articulated structure and the second articulated structure are arranged at intervals along the length direction of the articulated arm;
the work machine further includes: arm support and amplitude variation mechanism; the first hinge structure is hinged with the end part of the arm support, the second hinge structure is hinged with one end of the amplitude variation mechanism, and the other end of the amplitude variation mechanism is hinged with the middle part of the arm support;
the eccentric distance of the first hinge structure relative to the rotation axis and the eccentric distance of the second hinge structure relative to the rotation axis are both larger than the eccentric distance of the rear end of the cab relative to the rotation axis.
2. The work machine of claim 1, wherein the first end of the support arm is mounted to the support seat and the second end of the support arm is eccentric a greater distance relative to the swivel axis than the distance between the rear end of the cab and the swivel axis.
3. The work machine of claim 1, wherein the support base comprises a base and a tower, the base being mounted to a slewing bearing structure of the slewing assembly, a lower end of the tower being connected to the base, an upper end of the tower being connected to the first end of the support arm.
4. A working machine as claimed in claim 3, wherein a first pipe penetrating opening and an overhaul opening are formed in the wall of the tower, a second pipe penetrating opening is formed in the end face of the base, and the second pipe penetrating opening is located in an area surrounded by the tower;
and/or a plurality of circumferentially arranged mounting holes are formed in the base, and the base is connected with the slewing bearing structure through a bolt locking assembly penetrating through the mounting holes.
5. The work machine of claim 1, wherein the articulated arm includes a first side plate, a second side plate, and a sealing plate, the first side plate and the second side plate being spaced apart from each other and arranged side-by-side, the sealing plate being connected between the first side plate and the second side plate.
6. The work machine of claim 5, wherein the base of the support base is a bottom plate, the support arm is a support plate, and the first side plate and the second side plate of the articulated arm are vertically mounted on the support plate.
7. The work machine of claim 5, further comprising a boom and a luffing mechanism; the eccentric distance of the first hinge structure relative to the rotation axis is greater than the eccentric distance of the second hinge structure relative to the rotation axis;
the eccentric distance of the first hinge structure relative to the rotation axis is larger than the eccentric distance of the rear end of the cab relative to the rotation axis and smaller than the eccentric distance of the front end of the cab relative to the rotation axis, or the eccentric distance of the first hinge structure relative to the rotation axis is larger than the eccentric distance of the front end of the cab relative to the rotation axis;
the second hinge structure has an eccentric distance with respect to the swing axis that is greater than an eccentric distance of the rear end of the cab with respect to the swing axis and less than an eccentric distance of the front end of the cab with respect to the swing axis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011299085.XA CN114517583B (en) | 2020-11-18 | 2020-11-18 | Work machine |
| PCT/CN2021/103554 WO2022105238A1 (en) | 2020-11-18 | 2021-06-30 | Work machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011299085.XA CN114517583B (en) | 2020-11-18 | 2020-11-18 | Work machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114517583A CN114517583A (en) | 2022-05-20 |
| CN114517583B true CN114517583B (en) | 2023-04-25 |
Family
ID=81594635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011299085.XA Active CN114517583B (en) | 2020-11-18 | 2020-11-18 | Work machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114517583B (en) |
| WO (1) | WO2022105238A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201092736Y (en) * | 2007-08-28 | 2008-07-30 | 三一重工股份有限公司 | Concrete pump vehicle jib panoramic table |
| CN201818056U (en) * | 2010-08-31 | 2011-05-04 | 三一重工股份有限公司 | Engineering machinery and turntable arm support system thereof |
| CN202370260U (en) * | 2011-12-21 | 2012-08-08 | 三一重工股份有限公司 | Turntable arm rest system and engineering machinery |
| CN202441063U (en) * | 2012-02-06 | 2012-09-19 | 三一重工股份有限公司 | Rotary table and engineering machinery and arm support devices thereof |
| KR101329119B1 (en) * | 2013-08-13 | 2013-11-14 | 이준호 | High place operation device and high place operation car |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2013340A (en) * | 1978-01-26 | 1979-08-08 | B & A Eng Co | Indicating tilt |
| US9302129B1 (en) * | 2014-11-24 | 2016-04-05 | Oshkosh Corporation | Turntable assembly for a fire apparatus |
| CN204282832U (en) * | 2014-11-25 | 2015-04-22 | 三一汽车制造有限公司 | A kind of engineering machinery and turntable thereof |
| CN207313069U (en) * | 2017-08-29 | 2018-05-04 | 徐工集团工程机械有限公司 | Rescue rescues people's car |
-
2020
- 2020-11-18 CN CN202011299085.XA patent/CN114517583B/en active Active
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2021
- 2021-06-30 WO PCT/CN2021/103554 patent/WO2022105238A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201092736Y (en) * | 2007-08-28 | 2008-07-30 | 三一重工股份有限公司 | Concrete pump vehicle jib panoramic table |
| CN201818056U (en) * | 2010-08-31 | 2011-05-04 | 三一重工股份有限公司 | Engineering machinery and turntable arm support system thereof |
| CN202370260U (en) * | 2011-12-21 | 2012-08-08 | 三一重工股份有限公司 | Turntable arm rest system and engineering machinery |
| CN202441063U (en) * | 2012-02-06 | 2012-09-19 | 三一重工股份有限公司 | Rotary table and engineering machinery and arm support devices thereof |
| KR101329119B1 (en) * | 2013-08-13 | 2013-11-14 | 이준호 | High place operation device and high place operation car |
Also Published As
| Publication number | Publication date |
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| WO2022105238A1 (en) | 2022-05-27 |
| CN114517583A (en) | 2022-05-20 |
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