CN114517582B - Working machine - Google Patents
Working machine Download PDFInfo
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- CN114517582B CN114517582B CN202011299073.7A CN202011299073A CN114517582B CN 114517582 B CN114517582 B CN 114517582B CN 202011299073 A CN202011299073 A CN 202011299073A CN 114517582 B CN114517582 B CN 114517582B
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- arm
- cab
- distance
- hinge structure
- axis
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
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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)
- Forklifts And Lifting Vehicles (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a working machine, which comprises a vehicle body, a rotary table, an arm support and a luffing mechanism, wherein the vehicle body is connected with the rotary table; the vehicle body is provided with a rotary assembly positioned at the rear part of the cab; the rotary table is arranged on the rotary assembly and comprises a hinged arm, the hinged arm can rotate to the position above the cab, a first hinge structure and a second hinge structure are arranged on the hinged arm, and the eccentric distance of at least one of the first hinge structure and the second hinge structure relative to the rotary axis of the rotary table is greater than the distance between the rear end of the cab and the rotary axis; 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 invention can make the arm support rotate to the upper part of the cab along with the articulated arm based on the eccentric arrangement of the rotary table, thereby realizing the effective utilization of the vacant space above the cab, greatly increasing the arrangement length of the arm support, effectively reducing the tipping moment of the arm support and enhancing the operation capability 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 the equipment industry and is mainly used for earth and stone construction, pavement maintenance, hoisting, loading and unloading operations and the like, so that the working machine can be classified into a hoisting machine, a piling machine, a pavement machine, a compacting machine and the like according to categories.
For a working machine needing rotary operation, a rotary table is an important component of the rotary table, the upper part of the rotary table is hinged with the end part of an arm support, the lower part of the rotary table is fixed with a rotary support structure, and the rotary support structure is arranged on a fixed rotary tower. During rotary operation, the rotary table and the rotary support structure are driven by the driving mechanism to rotate on a horizontal plane relative to the fixed turret, so that the tail end of the arm support can reach different operation positions. Meanwhile, the upper part of the rotary table is also hinged with the fixed end of the amplitude variation mechanism, and the telescopic end of the amplitude variation mechanism is hinged on the arm support, so that the pitching angle of the arm support can be changed by controlling the telescopic of the amplitude variation 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 being hinged to one end of a boom and a luffing mechanism hinge hole 104 for being hinged to a fixed end of a luffing mechanism are provided in the side plate 102, and a front sealing plate 105 for connecting the bottom plate 101 is welded to the side plate 102.
However, the above turntable structure is not reasonable in design, 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 joint between the front sealing plate and the bottom plate will be worsened. For the existing working machine, a large vacant space is arranged above a cab, and the vacant space is difficult to be effectively utilized by the existing rotary table structure, so that the distribution length of the arm support is limited.
Disclosure of Invention
The invention provides a working machine, which is used for solving the problem that the distribution length of a boom is limited due to the fact that the eccentricity of an existing rotary table is too small and the vacant space above a cab of the working machine is difficult to fully utilize.
The present invention provides a working machine, including: the device comprises a vehicle body, a rotary table, an arm support and a luffing mechanism; the vehicle body is provided with a rotary assembly positioned behind the cab; the rotary table is mounted on the rotary assembly and comprises a hinged arm, the hinged arm can rotate to the position above the cab relative to the rotary axis of the rotary table, a first hinge structure and a second hinge structure are arranged on the hinged arm, and the eccentric distance of at least one of the first hinge structure and the second hinge structure relative to the rotary axis is larger than the distance between the rear end of the cab and the rotary axis; 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.
According to the present invention, the first hinge structure is eccentric with respect to the pivot axis by a distance greater than a distance between the rear end of the cab and the pivot axis, and the second hinge structure is eccentric with respect to the pivot axis by a distance less than or equal to the distance between the rear end of the cab and the pivot axis.
According to the work machine provided by the present invention, the eccentric distance of each of the first hinge structure and the second hinge structure with respect to the swivel axis is greater than the distance between the rear end of the cab and the swivel axis, and the eccentric distance of each of the first hinge structure and the second hinge structure with respect to the swivel axis is less than the distance between the front end of the cab and the swivel axis.
According to the present invention, the first hinge structure has an eccentric distance with respect to the pivot axis that is greater than or equal to a distance between the front end of the cab and the pivot axis, and the second hinge structure has an eccentric distance with respect to the pivot axis that is less than a distance between the rear end of the cab and the pivot axis, or the second hinge structure has an eccentric distance with respect to the pivot axis that is greater than or equal to a distance between the rear end of the cab and the pivot axis and that is less than a distance between the front end of the cab and the pivot axis.
According to the work machine provided by the present invention, the eccentric distance of each of the first hinge structure and the second hinge structure with respect to the pivot axis is greater than the distance between the front end of the cab and the pivot axis.
According to the present invention, the first hinge structure is provided with an eccentric distance with respect to the rotation axis that is greater than an eccentric distance of the second hinge structure with respect to the rotation axis, and the first hinge structure is provided with a height that is greater than a height at which the second hinge structure is provided.
According to a work machine provided by the present invention, the articulated arm comprises a first arm segment and a second arm segment; one end of the first arm section is arranged close to the rotary axis, and the other end of the first arm section is arranged far away from the rotary axis and is connected with one end of the second arm section; the first arm section and the second arm section are arranged to form an obtuse angle, the first hinge structure is arranged at the other end of the second arm section, and the second hinge structure is arranged at the joint of the first arm section and the second arm section.
According to the working machine provided by the invention, the rotary table comprises a rotary seat, the rotary seat is arranged on the rotary assembly, and the articulated arm is arranged on the rotary seat.
According to the working machine provided by the invention, the rotary seat comprises a supporting seat and a supporting arm; the supporting seat is arranged on a rotary supporting structure of the rotary assembly; the supporting arm is arranged on the supporting seat and can rotate to the position above the cab; the articulated arm is arranged on the supporting arm and is arranged along the length direction of the supporting arm.
According to the work machine provided by the invention, the first end of the supporting arm is arranged on the supporting seat, the supporting arm can rotate to the position above the cab relative to the rotation axis, and the eccentric distance of the second end of the supporting arm relative to the rotation axis is larger than the distance between the rear end of the cab and the rotation axis.
According to a work machine provided by the present invention, the eccentric distance of the second end of the support arm with respect to the swivel axis is smaller than the distance between the front end of the cab and the swivel axis; or the eccentric distance of the second end of the supporting arm relative to the rotary axis is greater than or equal to the distance between the front end of the cab and the rotary 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 upper end of the supporting seat is higher than the top of the cab.
According to the work machine provided by the invention, the supporting arm is horizontally arranged.
According to the operation machine provided by the invention, the supporting seat comprises a base and a tower drum, the base is installed on the slewing bearing structure, the lower end of the tower drum is connected with the base, and the upper end of the tower drum is connected with the first end of the supporting arm.
According to the operation machine provided by the invention, a first pipe penetrating opening and an access opening are formed in the wall of the tower drum, a second pipe penetrating opening is formed in the end face of the base, and the second pipe penetrating opening is located in the area where the tower drum is located; and/or, the articulated arm includes first curb plate, second curb plate and shrouding, first curb plate with the second curb plate is spaced each other and arranges side by side, the shrouding connect in first curb plate with between the second curb plate, the base of supporting seat is the bottom plate, the support arm is the backup pad, first curb plate reaches the second curb plate vertical install in the backup pad.
The invention provides a working machine, wherein an articulated arm on a rotary table is arranged to be capable of rotating to the upper part of a cab of the working machine, the eccentric distance of at least one articulated structure on the articulated arm relative to the rotation axis of the rotary table is larger than the distance between the rear end of the cab and the rotation axis, so that in the process of rotating the articulated arm, at least one of a first articulated structure and a second articulated structure can be positioned above or in front of the cab and has larger eccentric distance relative to the rotation axis.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a conventional turntable;
FIG. 2 is a schematic diagram of a work machine upper arm carrier in a retracted configuration in accordance with the present disclosure;
FIG. 3 is a schematic illustration of an upper arm rest of a work machine according to the present disclosure in an extended position;
fig. 4 is a schematic perspective view of a turntable according to the present invention;
fig. 5 is a schematic front view of a turntable according to the present invention;
fig. 6 is a schematic structural view of an articulated arm provided by the present invention.
Reference numerals:
101: a base plate; 102: a side plate; 103: a boom hinge hole;
104: a luffing mechanism hinge hole; 105: a front closing plate; 1: a vehicle body;
2: a turntable; 3: a swing assembly; 4: a cab;
5: a boom; 21: a supporting seat; 211: a base;
212: a tower drum; 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: closing the plate; 6: a luffing mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The work machine of the present invention is described below in conjunction with fig. 2-6.
As shown in fig. 2 to 5, the present embodiment provides a working machine including: the device comprises a vehicle body 1, a rotary table 2, an arm support 5 and a luffing mechanism 6; a rotary assembly 3 positioned behind a cab 4 is arranged on the vehicle body 1; the rotary table 2 is arranged on the rotary assembly 3, the rotary table 2 comprises a hinge arm 23, the hinge arm 23 can rotate to the position above the cab 4 relative to the rotary axis of the rotary table 2, a first hinge structure 231 and a second hinge structure 232 are arranged on the hinge arm 23, and the eccentric distance between the first hinge structure 231 and/or the second hinge structure 232 relative to the rotary axis of the rotary table 2 is larger than the distance between the rear end of the cab 4 and the rotary axis; the first hinge structure 231 is hinged with the end part of the arm support 5, the second hinge structure 232 is hinged with one end of the amplitude variation mechanism 6, and the other end of the amplitude variation mechanism 6 is hinged with the middle part of the arm support 5.
In the embodiment, the articulated arm 23 on the rotary table 2 is arranged to be capable of rotating to the position above the cab 4 of the working machine, and the eccentric distance of at least one hinge structure on the articulated arm 23 relative to the rotation axis of the rotary table 2 is larger than the distance between the rear end of the cab 4 and the rotation axis, so that in the process of rotating the articulated arm 23, at least one of the first hinge structure 231 and the second hinge structure 232 can be positioned above or in front of the cab 4 and has a larger eccentric distance relative to the rotation axis, when the boom 5 of the working machine is articulated with the articulated arm 23, the boom 5 can rotate to the position above the cab 4 along with the articulated arm 23, so that the vacant space above the cab 4 can be effectively utilized, the arrangement length of the boom 5 is greatly increased, the tilting moment of the boom 5 can be effectively reduced, and the working capacity of the boom 5 is enhanced.
It should be noted 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 slewing operation, and the slewing assembly of the working machine may be provided with the slewing table shown in the present embodiment.
The articulated arm 23 shown in this embodiment can be arranged either horizontally or obliquely; in the case where the articulated arm 23 is horizontally disposed, the articulated arm 23 should be integrally disposed at a height higher than the top of the cab 4; in the case where the hinge arm 23 is disposed in an inclined manner, the height of the end of the hinge arm 23 close to the pivot axis may be set lower than the top of the cab 4, and the end of the hinge arm 23 away from the pivot axis may be pivoted above the cab 4, or the overall height of the hinge arm 23 in the inclined manner may be set higher than the top of the cab 4.
Meanwhile, the first hinge structure 231 and the second hinge structure 232 shown in the present embodiment may be hinge holes, hinge pins, and the like known in the art, and may not be limited in particular. In the case of the existing working machine, one of the hinge structures of the hinge arm is hinged to the end portion of the arm support, the other hinge structure is hinged to one end of the luffing mechanism, and the other end of the luffing mechanism is hinged to the middle portion of the arm support, however, depending on the installation arrangement of the arm support, the hinge structure having a larger eccentric distance with respect to the rotation center of the turntable is typically hinged to the end portion of the arm support, so that the embodiment does not particularly indicate that the first hinge structure is hinged to one end of the arm support, and the second hinge structure is hinged to the luffing mechanism, and the positions of the first hinge structure and the second hinge structure can be determined according to the actual installation situation of the arm support, i.e., when one of the hinge structures is determined to be the first hinge structure hinged to one end of the arm support, the second hinge structure is necessarily located between the first hinge structure and the rotation axis of the turntable, and likewise, when one of the hinge structures is determined to be the second hinge structure hinged to one end of the arm support, the first hinge structure is necessarily located between the second hinge structure and the rotation axis of the turntable.
As shown in fig. 2, the arrangement positions of the first hinge structure 231 and the second hinge structure 232 will be specifically described by taking an example in which 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, where the distance between the rear end of the cab 4 and the rotation axis is denoted by D3, and the distance between the front end of the cab 4 and the rotation axis is denoted by D4.
In one embodiment, the first hinge structure 231 may be arranged to be eccentric with respect to the swivel axis by a distance D1 greater than a distance D3 between the rear end of the cab 4 and the swivel axis, and the second hinge structure 232 may be arranged to be eccentric with respect to the swivel axis by a distance D2 less than or equal to the distance D3 between the rear end of the cab 4 and the swivel axis. Thus, when the articulated arm 23 is pivoted above the cab 4 with respect to the pivot axis of the turntable 2, the first hinge structure 231 is disposed directly above or in front of the cab 4, and the second hinge structure 232 is disposed behind the cab 4.
In another embodiment, the eccentric distances D1 and D2 of the first and second hinge structures 231 and 232 relative to the swivel axis may be greater than the distance D3 between the rear end of the cab 4 and the swivel axis, and the eccentric distances D1 and D2 of the first and second hinge structures 231 and 232 relative to the swivel axis may be less than the distance D4 between the front end of the cab 4 and the swivel axis. Thus, when the hinge arm 23 is pivoted above the cab 4 with respect to the pivot axis of the turntable 2, the first hinge structure 231 and the second hinge structure 232 are both disposed directly above the cab 4.
In another embodiment, the eccentric distance D1 of the first hinge structure 231 with respect to the swivel axis may be set to be greater than or equal to the distance D4 between the front end of the cab 4 and the swivel axis, and the eccentric distance D2 of the second hinge structure 232 with respect to the swivel axis is smaller than the distance D3 between the rear end of the cab 4 and the swivel axis, or the eccentric distance D2 of the second hinge structure 232 with respect to the swivel axis is greater than the distance D3 between the rear end of the cab 4 and the swivel axis and is smaller than the distance D4 between the front end of the cab 4 and the swivel axis. Thus, when the articulated arm 23 is pivoted above the cab 4 with respect to the pivot axis of the turn table 2, the first hinge structure 231 is disposed in front of the cab 4, and the second hinge structure 232 is disposed directly above or behind the cab 4.
In another embodiment, the first and second hinge structures 231 and 232 may be arranged with eccentric distances D1 and D2 relative to the swivel axis that are each greater than the distance D4 between the front end of the cab 4 and the swivel axis. Thus, when the hinge arm 23 is pivoted above the cab 4 with respect to the pivot axis of the turntable 2, the first hinge structure 231 and the second hinge structure 232 are both disposed in front of the cab 4.
Here, by the arrangement scheme of the first hinge structure 231 and the second hinge structure 232, at least one of the first hinge structure 231 and the second hinge structure 232 may be distributed above or in front of the cab 4, so that in the process of pivoting the articulated arm 23 relative to the pivot axis after one end of the boom 5 of the work machine is articulated with the first hinge structure 231, the second hinge structure 232 is articulated with one end of the luffing mechanism, and the other end of the luffing mechanism is articulated with the middle of the boom 5, the boom 5 may be pivoted above the cab 4 along with the articulated arm 23, which not only can greatly increase the arrangement space of the boom 5, ensure the arrangement effective length of the boom 5, but also can effectively reduce the tilting moment of the boom 5, and enhance the operation capability of the boom 5.
As shown in fig. 2 to 3, in the present embodiment, the eccentric distance of the first hinge structure 231 with respect to the rotation axis is greater than the eccentric distance of the second hinge structure 232 with respect to the rotation axis, and the first hinge structure 231 is disposed at a height higher than that of the second hinge structure 232.
Specifically, in order to further adapt to the position arrangement of the first hinge structure 231 and the second hinge structure 232, the hinge arm 23 may include a first arm segment and a second arm segment; one end of the first arm section is arranged close to the rotary axis, and the other end of the first arm section is arranged far away from the rotary axis and is connected with one end of the second arm section; the first arm section and the second arm section are arranged at an obtuse angle, the first hinge structure 231 is arranged at the other end of the second arm section, and the second hinge structure 232 is arranged at the joint of the first arm section and the second arm section.
Here, based on the relative position arrangement of the first hinge structure 231 and the second hinge structure 232, the first hinge structure 231 may be hinged to one end of the boom 5, the second hinge structure 232 may be hinged to one end of the luffing mechanism, and the other end of the luffing mechanism may be hinged to the middle of the boom 5, so that the luffing mechanism may preferably apply a driving force to the boom 5, thereby changing the pitch angle of the boom 5.
Since the arm support 5 generally includes a plurality of arm segments, it can be configured as a first arm, a second arm, …, and an nth arm, which are sequentially connected from the head end to the tail end, where N is a natural number greater than or equal to 2. 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 horn, and the other end of the horn is hinged to the middle of the first arm, wherein the horn may be a hydraulic ram as is known in the art.
As shown in fig. 6, based on the modification of the above embodiment, in order to better provide the first hinge structure 231 and the second hinge structure 232 on the hinge arm 23 and provide an avoidance space for the deflection of the first arm and the luffing mechanism, the hinge arm 23 of the present embodiment includes a first side plate 233, a second side plate 234, and a sealing plate 235, wherein 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. 6, the closing plate 235 of this embodiment is provided with two pieces, wherein one closing plate 235 is located on the first arm segment of the hinge arm 23 and the other closing plate 235 is located on the second arm segment of the hinge arm 23, so as to ensure that the hinge arm 23 has a good mechanical strength.
Preferably, the revolving base of the revolving platform 2 shown in the present embodiment is installed on the revolving assembly 3, and the articulated arm 23 is installed on the revolving base, wherein the revolving base may be a cylindrical table, a vertical support, or the like, so as to realize the connection between the articulated arm 23 and the revolving assembly 3.
As shown in fig. 4 to 5, the revolving bed of the present embodiment includes a supporting seat 21 and a supporting arm 22; the supporting seat 21 is mounted on a rotary supporting structure of the rotary assembly 3; the supporting arm 22 is mounted on the supporting base 21, and the supporting arm 22 can rotate to the upper part of the cab 4 relative to the rotation axis of the turntable 2; the hinge arm 23 is mounted to the support arm 22 and arranged along the length of the support arm 22.
Specifically, in the present embodiment, the support base 21 of the swivel 2 is connected to the swivel assembly, and the support arm 22 rotatable to the upper side of the cab 4 of the working machine is mounted on the support base 21, so that the support arm 22 is mechanically supported at high strength based on the support base 21, the mechanical strength of the swivel 2 is ensured, and the swivel 2 can reach a larger eccentric distance, so that when the articulated arm 23 is mounted on the support arm 22, the boom 5 connected to the articulated arm 23 can be arranged above the cab 4 based on the position settings of the first hinge structure 231 and the second hinge structure 232 on the articulated arm 23, so as to fully utilize the empty space above the cab 4, and effectively increase the distributable length of the boom 5.
As shown in fig. 4 and 5, in order to ensure that the turntable 2 can achieve a large eccentric distance, the present embodiment mounts the first end of the support arm 22 on the support base 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 larger than the distance between the rear end of the cab 4 and the rotation axis. Here, it may be specifically provided that the eccentric distance of the second end of the support arm 22 with respect to the swivel axis is smaller than the distance between the front end of the cab 4 and the swivel axis, so that the second end of the support arm 22 can swivel to directly above the cab 4 when the support arm 22 swivels with respect to the swivel axis; in addition, it is also possible to provide that the second end of the support arm 22 is eccentric with respect to the swivel axis by a distance greater than or equal to the distance between the front end of the cab 4 and the swivel axis, so that the second end of the support arm 22 can swivel to the front of the cab 4 when the support arm 22 is swiveling with respect to the swivel axis.
As shown in fig. 2 and 3, in order to prevent the support arm 22 from interfering with the cab 4 during the rotation process, the first end of the support arm 22 is installed at the upper end of the support base 21, and the height of the support arm 22 and the height of the upper end of the support base 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 bases 21 are all set at a height lower than the top of the cab 4, since the first ends of the support arms 22 are mounted on the upper ends of the support bases 21, here, it is only necessary to set 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 5, in the case where the height of the end of the support arm 22 connected to the support base 21 is higher than the top of the cab 4, the support arm 22 may be disposed in a horizontal arrangement in the present embodiment.
Based on the improvement of the above embodiment, the support base 21 of the 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, the base 211 shown in this embodiment may be a circular bottom plate matched with the pivoting support structure, and the tower drum 212 may be vertically installed on the base 211, and since the tower drum 212 is circular, the tower drum 212 has strong anti-overturning performance, so that a connection structure based on the base 211 and the tower drum 212 may achieve better mechanical strength.
Meanwhile, the supporting arm 22 shown in the present embodiment is a supporting plate, and the first side plate 233 and the second side plate 234 shown in the above embodiment are both vertically installed on the supporting plate.
Further, under the condition that the operation machine shown in this embodiment is a concrete pump truck, in this embodiment, a first pipe penetrating opening and an access opening may be further formed in the cylinder wall of the tower 212, wherein the first pipe penetrating opening and the access opening are formed in the cylinder wall of the tower 212 in an opposite arrangement manner, the access opening is convenient for a worker to overhaul the turntable, and is convenient for mounting a 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 the area where the tower 212 is located. Here, through setting up first mouth of pipe and the second mouth of pipe of wearing, can be convenient for wear first mouth of pipe and the second mouth of pipe in proper order with the conveyer pipe on the mobile concrete pump to be connected with the pumping system on automobile body 1.
Further, in order to ensure reliable connection between the base 211 and the slewing bearing structure, in this embodiment, a plurality of mounting holes arranged along the circumference are formed in the base 211, and the base 211 and the slewing bearing structure are connected through a bolt locking assembly passing through the mounting holes.
In summary, in the working machine shown in this embodiment, by improving the existing turret, the support base 21 located at the lower layer is mounted on the slewing bearing structure of the slewing assembly, and the support arm 22 is mounted on the upper side of the support base 21 to form an upper and lower layered structure, so that the turret 2 has high mechanical strength and can slew to the upper side of the cab 4 of the working machine, so that the turret 2 can reach a large eccentric distance, and therefore, based on the arrangement of the hinge arm 23 on the support arm, the positions of the first hinge structure 231 and the second hinge structure 232 on the hinge arm 23 are set, so that when the hinge arm 23 swivels to the upper side of the cab 4 along the slewing axis of the turret 2, the first hinge structure 231 and the second hinge structure 232 can be located above or in front of the cab 4, so that the boom 5 can be correspondingly arranged above or in front of the cab 4, so as to fully utilize the vacant space above the cab 4, effectively increase the arrangeable length of the boom 5, and simultaneously effectively reduce the tilting moment of the boom 5, thereby enhancing the working capability of the boom 5.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A work machine, comprising:
the automobile body is provided with a rotary assembly positioned behind a cab;
the rotary table is mounted on the rotary assembly and comprises a hinged arm, the hinged arm can rotate to the position above the cab relative to the rotary axis of the rotary table, a first hinged structure and a second hinged structure are arranged on the hinged arm, and the eccentric distance of at least one of the first hinged structure and the second hinged structure relative to the rotary axis is larger than the distance between the rear end of the cab and the rotary axis;
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 rotary table comprises a rotary seat, and the rotary seat is arranged on the rotary assembly; the rotary seat comprises a supporting seat and a supporting arm; the supporting seat is arranged on a rotary supporting structure of the rotary assembly; the supporting arm is arranged on the supporting seat and can rotate to the position above the cab relative to the rotation axis; the articulated arm is arranged on the supporting arm and is arranged along the length direction of the supporting arm;
the eccentric distances of the first hinge structure and the second hinge structure relative to the rotation axis are both larger than the rotation radius of the support seat.
2. The work machine of claim 1, wherein the first hinge structure is eccentric with respect to the swivel axis by a distance greater than a distance between a rear end of the cab and the swivel axis, and the second hinge structure is eccentric with respect to the swivel axis by a distance less than or equal to the distance between the rear end of the cab and the swivel axis.
3. The work machine of claim 1, wherein the first and second hinge structures are each offset from the swivel axis by a distance greater than a distance between the rear end of the cab and the swivel axis, and wherein the first and second hinge structures are each offset from the swivel axis by a distance less than a distance between the front end of the cab and the swivel axis.
4. The work machine of claim 1, wherein the first articulation structure is eccentric with respect to the swivel axis by a distance greater than or equal to the distance between the front end of the cab and the swivel axis;
the eccentric distance of the second hinge structure relative to the rotary axis is smaller than the distance between the rear end of the cab and the rotary axis, or the eccentric distance of the second hinge structure relative to the rotary axis is larger than or equal to the distance between the rear end of the cab and the rotary axis and smaller than the distance between the front end of the cab and the rotary axis.
5. The work machine of claim 1, wherein the first and second hinge structures are each offset from the swivel axis by a distance greater than a distance between a front end of the cab and the swivel axis.
6. The work machine of claim 1, wherein the first hinge structure is located at a greater eccentric distance relative to the axis of rotation than the second hinge structure, the first hinge structure being located at a greater height than the second hinge structure.
7. The work machine of claim 6, wherein said articulated arm includes a first arm segment and a second arm segment; one end of the first arm section is arranged close to the rotary axis, and the other end of the first arm section is arranged far away from the rotary axis and is connected with one end of the second arm section; the first arm section and the second arm section are arranged to form an obtuse angle, the first hinge structure is arranged at the other end of the second arm section, and the second hinge structure is arranged at the joint of the first arm section and the second arm section.
8. The work machine of claim 1, wherein a first end of the support arm is mounted to the support base and a second end of the support arm is offset from the pivot axis by a distance greater than a distance between a rear end of the cab and the pivot axis and less than a distance between a front end of the cab and the pivot axis; or the eccentric distance of the second end of the supporting arm relative to the revolution axis is greater than or equal to the distance between the front end of the cab and the revolution axis.
9. The work machine of claim 8, wherein the first end of the support arm is mounted to an upper end of the support base, the upper end of the support base being disposed at a height above a top of the cab;
and/or the supporting arm is horizontally arranged.
10. The work machine of claim 9, wherein the support base includes a base mounted to the slewing bearing structure and a tower connected at a lower end to the base and at an upper end to the first end of the support arm.
11. The working machine as claimed in claim 10, wherein a first pipe penetrating opening and an access 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 the area where the tower is located;
and/or, the articulated arm includes first curb plate, second curb plate and shrouding, first curb plate with the second curb plate is spaced each other and arranges side by side, the shrouding connect in first curb plate with between the second curb plate, the base of supporting seat is the bottom plate, the support arm is the backup pad, first curb plate reaches the second curb plate vertical install in the backup pad.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011299073.7A CN114517582B (en) | 2020-11-18 | 2020-11-18 | Working machine |
| PCT/CN2021/103557 WO2022105239A1 (en) | 2020-11-18 | 2021-06-30 | Work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011299073.7A CN114517582B (en) | 2020-11-18 | 2020-11-18 | Working machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114517582A CN114517582A (en) | 2022-05-20 |
| CN114517582B true CN114517582B (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011299073.7A Active CN114517582B (en) | 2020-11-18 | 2020-11-18 | Working machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114517582B (en) |
| WO (1) | WO2022105239A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2013340A (en) * | 1978-01-26 | 1979-08-08 | B & A Eng Co | Indicating tilt |
| 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 |
| CN203729594U (en) * | 2014-01-28 | 2014-07-23 | 徐州徐工施维英机械有限公司 | Pump truck rotary table conveying pipe structure and concrete pump truck |
| EP2907786B1 (en) * | 2014-02-17 | 2016-04-13 | Terex Cranes Germany GmbH | Connector, combination crane and connecting method |
| 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 |
| CN205711738U (en) * | 2016-04-28 | 2016-11-23 | 杭州专用汽车有限公司 | A kind of Pneumatic limiting device of bridge inspection vehicle rotary table |
| 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 |
| CN208869209U (en) * | 2018-10-22 | 2019-05-17 | 河南垣发专用车辆集团有限公司 | A kind of anti-tipping control device of high-altitude operation vehicle |
-
2020
- 2020-11-18 CN CN202011299073.7A patent/CN114517582B/en active Active
-
2021
- 2021-06-30 WO PCT/CN2021/103557 patent/WO2022105239A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| CN114517582A (en) | 2022-05-20 |
| WO2022105239A1 (en) | 2022-05-27 |
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