WO2022105239A1 - 作业机械 - Google Patents

作业机械 Download PDF

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Publication number
WO2022105239A1
WO2022105239A1 PCT/CN2021/103557 CN2021103557W WO2022105239A1 WO 2022105239 A1 WO2022105239 A1 WO 2022105239A1 CN 2021103557 W CN2021103557 W CN 2021103557W WO 2022105239 A1 WO2022105239 A1 WO 2022105239A1
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WO
WIPO (PCT)
Prior art keywords
hinge structure
arm
cab
distance
support
Prior art date
Application number
PCT/CN2021/103557
Other languages
English (en)
French (fr)
Inventor
邓彪
陈添明
田阳
Original Assignee
三一汽车制造有限公司
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 三一汽车制造有限公司 filed Critical 三一汽车制造有限公司
Publication of WO2022105239A1 publication Critical patent/WO2022105239A1/zh

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C27/00—Fire-fighting land vehicles
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the present application relates to the technical field of work machines, and in particular, to a work machine.
  • Working machinery is an important part of the equipment industry, mainly used for earth and stone construction, road maintenance, lifting and loading and unloading operations, etc. Therefore, working machinery can be divided into lifting machinery, pile machinery, road machinery, compaction machinery and so on.
  • the turntable is an important part.
  • the upper part of the turntable is hinged with the end of the boom, and the lower part of the turntable is fixed with the slewing support structure, which is installed on the fixed turret.
  • the turntable and the slewing support structure are driven by the drive mechanism to rotate on the horizontal plane relative to the fixed turret, so that the end of the boom can reach different working positions.
  • the upper part of the turntable is also hinged to the fixed end of the luffing mechanism, and the telescopic end of the luffing mechanism is hinged to the boom, so that the pitch angle of the boom can be changed by controlling the telescoping of the luffing mechanism.
  • the existing turntable usually includes a bottom plate 101 and a side plate 102, the side plate 102 is installed on the bottom plate 101, and the arm frame hinge hole 103 for hinged with one end of the arm frame is provided on the side plate 102, A luffing mechanism hinge hole 104 is provided for hinged connection with the fixed end of the luffing mechanism, and a front sealing plate 105 for connecting the bottom plate 101 is welded on the side plate 102 .
  • the present application provides a work machine to solve the problem that the eccentricity of the existing turntable is too small, and it is difficult to make full use of the spare space above the cab of the work machine, which leads to the limitation of the clothable length of the boom.
  • the application provides a working machine, including: a car body, a turntable, a boom and a luffing mechanism; the car body is provided with a slewing assembly located behind a cab; the turntable is installed on the slewing assembly, so
  • the turntable includes an articulated arm, the articulated arm can be rotated relative to the rotation axis of the turntable to above the cab, the articulated arm is provided with a first hinged structure and a second hinged structure, the first hinged
  • the eccentric distance of at least one of the structure and the second hinge structure relative to the rotation axis is greater than the distance between the rear end of the cab and the rotation axis; the first hinge structure and the boom
  • the end of the luffing mechanism is hinged, the second hinge structure is hinged with one end of the luffing mechanism, and the other end of the luffing mechanism is hinged with the middle of the boom.
  • the eccentric distance of the first hinge structure relative to the rotation axis is greater than the distance between the rear end of the cab and the rotation axis, and the second hinge structure is opposite to the rotation axis.
  • the eccentric distance from the pivot axis is less than or equal to the distance between the rear end of the cab and the pivot axis.
  • the eccentric distances of the first hinge structure and the second hinge structure relative to the rotation axis are both greater than the distance between the rear end of the cab and the rotation axis
  • the eccentric distances of the first hinge structure and the second hinge structure relative to the rotation axis are both smaller than the distance between the front end of the cab and the rotation axis.
  • the eccentric distance of the first hinge structure relative to the rotation axis is greater than or equal to the distance between the front end of the cab and the rotation axis
  • the second hinge structure The eccentric distance relative to the rotation axis is smaller than the distance between the rear end of the cab and the rotation axis, or the eccentric distance of the second hinge structure relative to the rotation axis is greater than or equal to the driving distance
  • the distance between the rear end of the chamber and the pivot axis is smaller than the distance between the front end of the cab and the pivot axis.
  • the eccentric distance of the first hinge structure and the second hinge structure relative to the rotation axis is both greater than the distance between the front end of the cab and the rotation axis.
  • 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, and the first hinge structure is provided with The height is higher than the height set by the second hinge structure.
  • the articulated arm includes a first arm segment and a second arm segment; one end of the first arm segment is disposed close to the rotation axis, and the other end of the first arm segment is far away from
  • the rotation axis is arranged and connected to one end of the second arm segment; the first arm segment and the second arm segment are arranged at an obtuse angle, and the first hinge structure is arranged on the other side of the second arm segment.
  • the second hinge structure is disposed at the joint of the first arm segment and the second arm segment.
  • the turntable includes a swivel base, the swivel base is mounted on the swivel assembly, and the articulated arm is mounted on the swivel base.
  • the swivel base includes a support base and a support arm; the support base is installed on the slewing support structure of the slewing assembly; the support arm is installed on the support base, The support arm can be rotated to the top of the cab; the articulated arm is mounted on the support arm and arranged along the length direction of the support arm.
  • the first end of the support arm is mounted on the support seat, the support arm can be rotated relative to the rotation axis to above the cab, the support arm
  • the eccentric distance of the second end of the cab relative to the rotation axis is greater than the distance between the rear end of the cab and the rotation axis.
  • the eccentric distance of the second end of the support arm relative to the rotation axis is smaller than the distance between the front end of the cab and the rotation axis; or, the support arm The eccentric distance of the second end of the cab relative to the rotation axis is greater than or equal to the distance between the front end of the cab and the rotation axis.
  • the first end of the support arm is mounted on the upper end of the support seat, and the upper end of the support seat is set at a height higher than the top of the cab.
  • the support arm is arranged horizontally.
  • the support base includes a base and a tower, the base is mounted on the slewing support structure, the lower end of the tower is connected to the base, and the upper end of the tower is connected to the base the first end of the support arm.
  • a first pipe penetration port and an inspection port are provided on the cylinder wall of the tower, and a second pipe penetration port is provided on the end face of the base, and the second pipe penetration port is provided in the area where the tower is located; and/or, the hinged arm includes a first side plate, a second side plate and a cover plate, the first side plate and the second side plate are spaced apart from each other and arranged side by side , the sealing plate is connected between the first side plate and the second side plate, the base of the support seat is a bottom plate, the support arm is a support plate, the first side plate and the second side plate are The two side plates are vertically mounted on the support plate.
  • the application provides a work machine, which can be rotated to the top of the cab of the work machine by setting the hinge arm on the turntable, and the eccentric distance of at least one hinge structure on the hinge arm relative to the rotation axis of the turntable is greater than that of the cab.
  • the distance between the rear end and the swivel axis, during the swivel of the hinge arm, at least one of the first hinge structure and the second hinge structure can be located above or in front of the cab, and has a larger relative to the swivel axis.
  • Eccentric distance when the boom of the work machine is hinged with the hinged arm, the boom can be rotated to the top of the cab along with the hinged arm, so as to realize the effective use of the spare space above the cab, and greatly increase the boom's capacity.
  • the length of the arrangement can effectively reduce the tipping moment of the boom and enhance the working ability of the boom.
  • Fig. 1 is the structural representation of the existing turntable
  • FIG. 2 is a schematic structural diagram of the upper boom of the working machine provided by the present application in a retracted state
  • FIG. 3 is a schematic structural diagram of the upper boom of the working machine provided by the present application in an extended state
  • Fig. 4 is the three-dimensional structure schematic diagram of the turntable provided by this application.
  • Fig. 5 is the front view structure schematic diagram of the turntable provided by the present application.
  • FIG. 6 is a schematic structural diagram of the articulated arm provided by the present application.
  • 101 Bottom plate; 102: Side plate; 103: Boom hinge hole;
  • 104 hinge hole of luffing mechanism
  • 105 front cover plate
  • 1 car body
  • this embodiment provides a working machine, including: a vehicle body 1 , a turntable 2 , a boom 5 and a luffing mechanism 6 ; Step 3; the turntable 2 is installed on the swivel assembly 3, the turntable 2 includes an articulated arm 23, the articulated arm 23 can be rotated relative to the rotation axis of the turntable 2 to the top of the cab 4, and the articulated arm 23 is provided with a first hinged structure 231 With the second hinged structure 232, the eccentric distance of the first hinged structure 231 and/or the second hinged structure 232 relative 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; the first hinged structure 231 The second hinge structure 232 is hinged with the end of the boom 5 , the second hinge structure 232 is hinged with one end of the luffing mechanism 6 , and the other end of the luffing mechanism 6 is hinged with the middle of the boom
  • the hinged arm 23 on the turntable 2 can be rotated to the top of the cab 4 of the working machine, and the eccentric distance of at least one hinged structure on the hinged arm 23 relative to the rotation axis of the turntable 2 is greater than that of the cab 4
  • the boom 5 of the working machine is hinged with the hinged arm 23, the boom 5 can be rotated to the top of the cab 4 along with the hinged arm 23, which can realize the free space above the cab 4.
  • the effective utilization greatly increases the arrangement length of the boom 5 , and at the same time can effectively reduce the tipping moment of the boom 5 , thereby enhancing the workability of the boom 5 .
  • the working machines shown in this embodiment can be cranes, concrete pump trucks, cranes, fire trucks, etc. that can perform slewing operations, and the slewing assemblies of these working machines can be installed in this embodiment. the turntable shown.
  • the hinged arm 23 shown in this embodiment can be arranged horizontally or obliquely; when the hinged arm 23 is set horizontally, the height of the hinged arm 23 as a whole should be higher than the top of the cab 4; When the arm 23 is inclined, the height of the end of the hinged arm 23 close to the rotation axis can be set lower than the top of the cab 4, and the end of the hinged arm 23 away from the rotation axis can be rotated to the top of the cab 4, or set The overall height of the hinged arm 23 is higher than the top of the cab 4 when it is inclined.
  • first hinge structure 231 and the second hinge structure 232 shown in this embodiment may be hinge holes, pins, etc. known in the art, which may not be specifically limited herein.
  • one of the hinge structures on the articulated arm is hinged with the end of the boom
  • the other hinged structure is hinged with one end of the luffing mechanism
  • the other end of the luffing mechanism is hinged with the middle of the boom.
  • the hinge structure with a large eccentric distance relative to the rotation center of the turntable is usually hinged with the end of the boom, so this embodiment does not specifically specify that the first hinge structure is hinged with one end of the boom , the second hinge structure is hinged with the luffing mechanism, and the positions of the first hinge structure and the second hinge structure can be determined according to the actual installation of the boom, that is, when one of the hinge structures is determined to be hinged with one end of the boom When the first hinged structure is used, the second hinged structure must be located between the first hinged structure and the rotation axis of the turntable. Similarly, when one of the hinged structures is determined to be the second hinged structure hinged with one end of the boom, the first hinged structure is determined. The hinge structure is necessarily located between the second hinge structure and the axis of rotation of the turntable.
  • the eccentric distance D1 of the first hinge structure 231 relative to the rotation axis of the turntable 2 is greater than the eccentric distance D2 of the second hinge structure 232 relative to the rotation axis of the turntable 2 .
  • the arrangement position of the second hinge structure 232 is specifically described, wherein the distance between the rear end of the cab 4 and the rotation axis is represented by D3, and the distance between the front end of the cab 4 and the rotation axis is represented by D4.
  • the eccentric distance D1 of the first hinge structure 231 relative to the rotation axis can be set greater than the distance D3 between the rear end of the cab 4 and the rotation axis, and the eccentricity of the second hinge structure 232 relative to the rotation axis can be set
  • the distance D2 is less than or equal to the distance D3 between the rear end of the cab 4 and the axis of rotation. Therefore, when the hinged arm 23 rotates to the top of the cab 4 relative to the rotation axis of the turntable 2 , the first hinged structure 231 is distributed directly above or in front of the cab 4 , and the second hinged structure 232 is distributed on the cab 4 . rear.
  • the eccentric distances D1 and D2 of the first hinge structure 231 and the second hinge structure 232 relative to the rotation axis may be set greater than the distance D3 between the rear end of the cab 4 and the rotation axis.
  • the eccentric distances D1 and D2 of the hinge structure 231 and the second hinge structure 232 relative to the rotation axis are both smaller than the distance D4 between the front end of the cab 4 and the rotation axis. Therefore, when the hinged arm 23 rotates to the upper side of the cab 4 relative to the rotation axis of the turntable 2 , the first hinged structures 231 and the second hinged structures 232 are distributed directly above the cab 4 .
  • the eccentric distance D1 of the first hinge structure 231 relative to the rotation axis can be set to be greater than or equal to the distance D4 between the front end of the cab 4 and the rotation axis
  • the eccentric distance D1 of the second hinge structure 232 relative to the rotation axis can be set.
  • the eccentric distance D2 is smaller than the distance D3 between the rear end of the cab 4 and the rotation axis, or the eccentric distance D2 of the second hinge structure 232 relative to the rotation axis is greater than the distance D3 between the rear end of the cab 4 and the rotation axis, and smaller than the distance D4 between the front end of the cab 4 and the axis of rotation.
  • the hinged arm 23 rotates to the upper side of the cab 4 relative to the rotation axis of the turntable 2
  • the first hinged structure 231 is distributed in front of the cab 4
  • the second hinged structure 232 is distributed directly above the cab 4 or rear.
  • the eccentric distances D1 and D2 of the first hinge structure 231 and the second hinge structure 232 relative to the swivel axis can be set greater than the distance D4 between the front end of the cab 4 and the swivel axis. Therefore, when the hinged arm 23 rotates to the upper side of the cab 4 relative to the rotation axis of the turntable 2 , the first hinged structures 231 and the second hinged structures 232 are both distributed in front of the cab 4 .
  • the first hinge structure 231 and the second hinge structure 232 can be distributed above or in front of the cab 4, Therefore, one end of the boom 5 of the working machine is hinged with the first hinge structure 231 , the second hinge structure 232 is hinged with one end of the luffing mechanism, and the other end of the luffing mechanism is hinged with the middle of the boom 5 .
  • the arm frame 5 can be rotated to the top of the cab 4 along with the articulated arm 23, which can not only greatly increase the arrangement space of the arm frame 5, but also ensure the arrangement of the arm frame 5.
  • the effective length can also effectively reduce the tipping moment of the boom 5 and enhance the workability of the boom 5 .
  • the eccentric distance of the first hinge structure 231 relative to the rotation axis shown in this embodiment is greater than the eccentric distance of the second hinge structure 232 relative to the rotation axis, and the height of the first hinge structure 231 is high. at the height set by the second hinge structure 232 .
  • the hinge arm 23 can be set to include a first arm segment and a second arm segment; one end of the first arm segment is arranged close to the rotation axis , the other end of the first arm segment is arranged away from the axis of rotation, and is connected to one end of the second arm segment; the first arm segment and the second arm segment are arranged at an obtuse angle, and the first hinge structure 231 is arranged at the other end of the second arm segment,
  • the second hinge structure 232 is disposed at the joint portion of the first arm segment and the second arm segment.
  • the first hinge structure 231 can be hinged with one end of the boom 5
  • the second hinge structure 232 can be hinged with one end of the luffing mechanism
  • the other end of the luffing mechanism is hinged with the middle of the boom 5 , so that the luffing mechanism can better apply a driving force to the boom 5 , thereby changing the pitch angle of the boom 5 .
  • the arm frame 5 usually includes a plurality of arm segments, it can be set as the first arm, the second arm, ..., the Nth arm connected in sequence from the head end to the end, where N is a natural number greater than or equal to 2.
  • the first hinge structure 231 shown in this embodiment is hinged with the head end of the first arm
  • the second hinge structure 232 is hinged with one end of the luffing mechanism
  • the other end of the luffing mechanism is hinged with the middle of the first arm
  • the luffing mechanism may be a hydraulic cylinder known in the art.
  • the hinge arm 23 shown in this embodiment includes a first side plate 233, a second side plate 234 and a sealing plate 235.
  • 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 to the first side plate 233 and the second side plate 234. between the one side plate 233 and the second side plate 234 .
  • FIG. 6 there are two sealing plates 235 in this embodiment, one of which is located at the first arm section of the hinged arm 23 , and the other is located at the second arm section of the hinged arm 23 , In this way, better mechanical strength of the hinged arm 23 can be ensured.
  • the rotary seat is mounted on the rotary assembly 3, and the hinged arm 23 is mounted on the rotary seat, wherein the rotary seat can be a cylindrical table, a vertical bracket, etc., to realize The connection between the articulated arm 23 and the swivel assembly 3 .
  • the swivel seat shown in this embodiment includes a support seat 21 and a support arm 22 ;
  • the support seat 21 is installed on the slewing support structure of the slewing assembly 3 ;
  • the support arm 22 is installed on the support seat 21 , the support arm 22 can be rotated relative to the rotation axis of the turntable 2 to the top of the cab 4 ;
  • the support base 21 of the turntable 2 supports the support base 21 that can be rotated to the top of the cab 4 of the working machine.
  • the arm 22 provides high-strength mechanical support, which ensures the mechanical strength of the turntable 2, so that the turntable 2 can reach a large eccentric distance, so that when the hinged arm 23 is installed on the support arm 22, based on the first hinged joint on the hinged arm 23
  • the position setting of the structure 231 and the second hinge structure 232 can enable the boom 5 connected with the hinged arm 23 to be arranged above the cab 4 to make full use of the spare space above the cab 4 and effectively increase the boom 5 the clothable length.
  • the first end of the support arm 22 is installed on the support base 21 in this embodiment, and the second end of the support arm 22 is opposite to the turntable 2 .
  • the eccentric distance of the swivel axis is greater than the distance between the rear end of the cab 4 and the swivel axis.
  • the eccentric distance of the second end of the support arm 22 relative to the rotation axis can be specifically set to be smaller than the distance between the front end of the cab 4 and the rotation axis, so that when the support arm 22 is rotated relative to the rotation axis, the support arm The second end of the cab 22 can be rotated to just above the cab 4; in addition, the eccentric distance of the second end of the support arm 22 relative to the swivel axis can be set greater than or equal to the distance between the front end of the cab 4 and the swivel axis, Therefore, when the support arm 22 is rotated relative to the rotation axis, the second end of the support arm 22 can be rotated to the front of the cab 4 .
  • the first end of the support arm 22 is installed on the upper end of the support seat 21 , and the support arm 22 is provided with a first end.
  • the height and the height set at the upper end of the support seat 21 are higher than the top of the cab 4 .
  • the height of the upper end of the support seat 21 is lower than the top of the cab 4, since the first end of the support arm 22 is installed on the upper end of the support seat 21, here, only need to set The height of a section of the support arm 22 close to its second end may be higher than the top of the cab 4 .
  • the support arm 22 when 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 can be arranged horizontally in this embodiment.
  • the support base 21 shown in this embodiment includes a base 211 and a tower 212, the base 211 is installed on the slewing support 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 support arm 22's first end.
  • the base 211 shown in this embodiment can be a circular base plate matching the slewing support structure, and the tower 212 can be vertically installed on the base 211 . Strong anti-overturning property, so based on the connection structure of the base 211 and the tower 212, better mechanical strength can be achieved.
  • the support arm 22 shown in this embodiment is a support plate, and the first side plate 233 and the second side plate 234 shown in the above embodiment are both vertically mounted on the support plate.
  • a first pipe penetrating port and an inspection port can also be provided on the cylinder wall of the tower 212, wherein the first pipe penetrating port is The inspection port is opened on the wall of the tower 212 in a manner opposite to the inspection port.
  • the inspection port is convenient for the staff to overhaul the turntable, and it is convenient for the installation of the conveying pipe on the turntable.
  • the end face of the base 211 is provided with a second through pipe The second through-pipe opening is located in the area where the tower 212 is located.
  • a plurality of installation holes arranged along the circumference are opened on the base 211, and the base 211 and the slewing support structure pass through the installation holes. the bolt locking assembly connection.
  • the support base 21 located on the lower layer is installed on the slewing support structure of the slewing assembly, and the support arm is installed on the upper side of the support base 21 22, to form an upper and lower layered structure, so that the turntable 2 has high mechanical strength, and can be rotated to the top of the cab 4 of the working machine, so that the turntable 2 can reach a large eccentric distance, so as to be arranged on the support arm.
  • the hinged arm 23 sets the positions of the first hinged structure 231 and the second hinged structure 232 on the hinged arm 23, so that when the hinged arm 23 rotates to the top of the cab 4 along the rotation axis of the turntable 2, the first hinged The structure 231 and the second hinged structure 232 can be located above or in front of the cab 4, so that the boom 5 can be arranged above or in front of the cab 4 accordingly, so as to make full use of the spare space above the cab 4, and effectively grow
  • the distributable length of the boom 5 can effectively reduce the tipping moment of the boom 5 and enhance the workability of the boom 5 .

Abstract

一种作业机械，包括：车体（1）、转台（2）、臂架（5）及变幅机构（6），车体（1）上装有位于驾驶室（4）后方的回转总成（3），转台（2）安装于回转总成（3）上，转台（2）包括铰接臂（23），铰接臂（23）可相对于转台（2）的回转轴线回转至驾驶室（4）的上方，铰接臂（23）上设有第一铰接结构（231）与第二铰接结构（232），第一铰接结构（231）和/或第二铰接结构（232）相对于转台（2）的回转轴线的偏心距离大于驾驶室（4）的后端与回转轴线之间的距离；第一铰接结构（231）与臂架（5）的端部铰接，第二铰接结构（232）与变幅机构（6）的一端铰接，变幅机构（6）的另一端与臂架（5）的中部铰接。该作业机械可使臂架随同铰接臂回转至驾驶室的上方，实现对驾驶室上方的空余空间的有效利用，大幅度增加了臂架的布置长度，可有效降低臂架的倾翻力矩，增强了臂架的作业能力。

Description

作业机械
相关申请的交叉引用
本申请要求于2020年11月18日提交的申请号为202011299073.7，发明名称为“作业机械”的中国专利申请的优先权，其通过引用全部并入本文。
技术领域
本申请涉及作业机械技术领域，尤其涉及一种作业机械。
背景技术
作业机械是装备工业当中的重要组成部分，主要用于土石施工、路面养护、起重装卸作业等，从而作业机械按照类别可分为起重机械、桩工机械、路面机械、压实机械等。
对于需要回转作业的作业机械而言，转台是其重要组成部分，转台的上部与臂架的端部铰接，转台的下部与回转支承结构固定，回转支承结构则安装于固定转塔上。在回转作业时，转台及回转支承结构在驱动机构的驱动下相对于固定转塔在水平面上回转，从而可使得臂架的末端到达不同作业位置。与此同时，转台的上部还铰接变幅机构的固定端，变幅机构的伸缩端铰接于臂架上，从而可通过控制变幅机构的伸缩来改变臂架的俯仰角度。
如图1所示，现有的转台通常包括底板101与侧板102，侧板102安装于底板101上，在侧板102上设置用于与臂架的一端相铰接的臂架铰接孔103，及设置用于与变幅机构的固定端相铰接的变幅机构铰接孔104，并在侧板102上焊装有用于连接底板101的前封板105。
然而，上述转台结构设计不合理，臂架铰接孔相对于回转轴线的偏心距离过小，而在将臂架铰接孔相对于回转轴线以较大的偏心距离设置时，前封板与底板之间连接处的受力将发生恶化。对于现有的作业机械而言，在其驾驶室上方具有较大的空余空间，而现有的转台结构难以对该空余空间进行有效利用，导致臂架的可布长度受到限制。
发明内容
本申请提供一种作业机械，用以解决现有的转台偏心距过小，难以充分利用作业机械的驾驶室上方的空余空间，导致臂架的可布长度受到限制的问题。
本申请提供一种作业机械，包括：车体、转台、臂架及变幅机构；所述车体上装有位于驾驶室后方的回转总成；所述转台安装于所述回转总成上，所述转台包括铰接臂，所述铰接臂能够相对于所述转台的回转轴线回转至所述驾驶室的上方，所述铰接臂上设有第一铰接结构与第二铰接结构，所述第一铰接结构和所述第二铰接结构中至少一者相对于所述回转轴线的偏心距离大于所述驾驶室的后端与所述回转轴线之间的距离；所述第一铰接结构与所述臂架的端部铰接，所述第二铰接结构与所述变幅机构的一端铰接，所述变幅机构的另一端与所述臂架的中部铰接。
根据本申请提供的一种作业机械，所述第一铰接结构相对于所述回转轴线的偏心距离大于所述驾驶室的后端与所述回转轴线之间的距离，所述第二铰接结构相对于所述回转轴线的偏心距离小于或等于所述驾驶室的后端与所述回转轴线之间的距离。
根据本申请提供的一种作业机械，所述第一铰接结构与所述第二铰接结构相对于所述回转轴线的偏心距离均大于所述驾驶室的后端与所述回转轴线之间的距离，所述第一铰接结构与所述第二铰接结构相对于所述回转轴线的偏心距离均小于所述驾驶室的前端与所述回转轴线之间的距离。
根据本申请提供的一种作业机械，所述第一铰接结构相对于所述回转轴线的偏心距离大于或等于所述驾驶室的前端与所述回转轴线之间的距离，所述第二铰接结构相对于所述回转轴线的偏心距离小于所述驾驶室的后端与所述回转轴线之间的距离，或者，所述第二铰接结构相对于所述回转轴线的偏心距离大于或等于所述驾驶室的后端与所述回转轴线之间的距离，且小于所述驾驶室的前端与所述回转轴线之间的距离。
根据本申请提供的一种作业机械，所述第一铰接结构与所述第二铰接结构相对于所述回转轴线的偏心距离均大于所述驾驶室的前端与所述回转轴线之间的距离。
根据本申请提供的一种作业机械，所述第一铰接结构相对于所述回转 轴线的偏心距离大于所述第二铰接结构相对于所述回转轴线的偏心距离，所述第一铰接结构设置的高度高于所述第二铰接结构设置的高度。
根据本申请提供的一种作业机械，所述铰接臂包括第一臂段与第二臂段；所述第一臂段的一端靠近所述回转轴线设置，所述第一臂段的另一端远离所述回转轴线设置，并连接所述第二臂段的一端；所述第一臂段与所述第二臂段设置呈钝角，所述第一铰接结构设置于所述第二臂段的另一端，所述第二铰接结构设置于所述第一臂段与所述第二臂段的结合部。
根据本申请提供的一种作业机械，所述转台包括回转座，所述回转座安装于所述回转总成上，所述铰接臂安装于所述回转座上。
根据本申请提供的一种作业机械，所述回转座包括支撑座与支撑臂；所述支撑座安装于所述回转总成的回转支承结构上；所述支撑臂安装于所述支撑座上，所述支撑臂能够回转至所述驾驶室的上方；所述铰接臂安装于所述支撑臂上，并沿所述支撑臂的长度方向排布。
根据本申请提供的一种作业机械，所述支撑臂的第一端安装于所述支撑座上，所述支撑臂可相对于所述回转轴线回转至所述驾驶室的上方，所述支撑臂的第二端相对于所述回转轴线的偏心距离大于所述驾驶室的后端与所述回转轴线之间的距离。
根据本申请提供的一种作业机械，所述支撑臂的第二端相对于所述回转轴线的偏心距离小于所述驾驶室的前端与所述回转轴线之间的距离；或者，所述支撑臂的第二端相对于所述回转轴线的偏心距离大于或等于所述驾驶室的前端与所述回转轴线之间的距离。
根据本申请提供的一种作业机械，所述支撑臂的第一端安装于所述支撑座的上端，所述支撑座的上端设置的高度高于所述驾驶室的顶部。
根据本申请提供的一种作业机械，所述支撑臂呈水平设置。
根据本申请提供的一种作业机械，所述支撑座包括底座与塔筒，所述底座安装于所述回转支承结构上，所述塔筒的下端连接所述底座，所述塔筒的上端连接所述支撑臂的第一端。
根据本申请提供的一种作业机械，所述塔筒的筒壁上开设有第一穿管口与检修口，所述底座的端面上开设有第二穿管口，所述第二穿管口处于所述塔筒所在的区域内；和/或，所述铰接臂包括第一侧板、第二侧板及封 板，所述第一侧板与所述第二侧板彼此间隔且并排布置，所述封板连接于所述第一侧板与所述第二侧板之间，所述支撑座的底座为底板，所述支撑臂为支撑板，所述第一侧板及所述第二侧板竖直安装于所述支撑板上。
本申请提供的一种作业机械，通过设置转台上的铰接臂可回转至作业机械的驾驶室的上方，并设置铰接臂上的至少一个铰接结构相对于转台的回转轴线的偏心距离大于驾驶室的后端与回转轴线之间的距离，则在铰接臂回转的过程中，第一铰接结构与第二铰接结构当中的至少一个可位于驾驶室的上方或前方，并相对于回转轴线具有较大的偏心距离，在将作业机械的臂架与铰接臂相铰接时，臂架可随同铰接臂回转至驾驶室的上方，从而实现对驾驶室上方的空余空间的有效利用，大幅度增加了臂架的布置长度，同时可有效降低臂架的倾翻力矩，增强了臂架的作业能力。
附图说明
为了更清楚地说明本申请或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有的转台的结构示意图；
图2是本申请提供的作业机械上臂架处于收缩状态的结构示意图；
图3是本申请提供的作业机械上臂架处于伸展状态的结构示意图；
图4是本申请提供的转台的立体结构示意图；
图5是本申请提供的转台的主视结构示意图；
图6是本申请提供的铰接臂的结构示意图。
附图标记：
101：底板；102：侧板；103：臂架铰接孔；
104：变幅机构铰接孔；105：前封板；1：车体；
2：转台；3：回转总成；4：驾驶室；
5：臂架；21：支撑座；211：底座；
212：塔筒；22：支撑臂；23：铰接臂；
231：第一铰接结构；232：第二铰接结构；233：第一侧板；
234：第二侧板；235：封板；6：变幅机构。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请中的附图，对本申请中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
下面结合图2-图6描述本申请的作业机械。
如图2至图5所示，本实施例提供了一种作业机械，包括：车体1、转台2、臂架5及变幅机构6；车体1上装有位于驾驶室4后方的回转总成3；转台2安装于回转总成3上，转台2包括铰接臂23，铰接臂23可相对于转台2的回转轴线回转至驾驶室4的上方，铰接臂23上设有第一铰接结构231与第二铰接结构232，第一铰接结构231和/或第二铰接结构232相对于转台2的回转轴线的偏心距离大于驾驶室4的后端与回转轴线之间的距离；第一铰接结构231与臂架5的端部铰接，第二铰接结构232与变幅机构6的一端铰接，变幅机构6的另一端与臂架5的中部铰接。
本实施例通过设置转台2上的铰接臂23可回转至作业机械的驾驶室4的上方，并设置铰接臂23上的至少一个铰接结构相对于转台2的回转轴线的偏心距离大于驾驶室4的后端与回转轴线之间的距离，则在铰接臂23回转的过程中，第一铰接结构231与第二铰接结构232当中的至少一个可位于驾驶室4的上方或前方，并相对于回转轴线具有较大的偏心距离，在将作业机械的臂架5与铰接臂23相铰接时，臂架5可随同铰接臂23回转至驾驶室4的上方，可实现对驾驶室4上方的空余空间的有效利用，大幅度增加了臂架5的布置长度，同时可有效降低臂架5的倾翻力矩，增强了臂架5的作业能力。
在此应指出的是，本实施例所示的作业机械可以为能够进行回转作业的起重机、混凝土泵车、起吊车及消防车等，可在这些作业机械的回转总成上安装本实施例所示的转台。
本实施例所示的铰接臂23既可呈水平设置，又可呈倾斜设置；在铰接臂23呈水平设置的情况下，铰接臂23整体设置的高度应高于驾驶室4的顶部；在铰接臂23呈倾斜设置的情况下，可设置铰接臂23靠近回转轴 线的一端的设置高度低于驾驶室4的顶部，铰接臂23远离回转轴线的一端能够回转至驾驶室4的上方，或者，设置铰接臂23在呈倾斜设置时的整体高度均高于驾驶室4的顶部。
与此同时，本实施例所示的第一铰接结构231、第二铰接结构232均可以为本领域所公知的铰接孔、销轴等，在此可不作具体限定。对于现有的作业机械而言，铰接臂上的其中一个铰接结构与臂架的端部铰接，另一个铰接结构与变幅机构的一端铰接，变幅机构的另一端与臂架的中部铰接，但是，根据对臂架的安装布置，通常相对于转台的旋转中心具有较大偏心距离的铰接结构与臂架的端部铰接，从而本实施例不特别指明第一铰接结构与臂架的一端铰接，第二铰接结构与变幅机构铰接，第一铰接结构与第二铰接结构的位置可根据实际与臂架的安装情况进行确定，即在确定其中一个铰接结构为与臂架的一端相铰接的第一铰接结构时，第二铰接结构必然位于第一铰接结构与转台的回转轴线之间，同样地，在确定其中一个铰接结构为与臂架的一端相铰接的第二铰接结构时，第一铰接结构必然位于第二铰接结构与转台的回转轴线之间。
如图2所示，以第一铰接结构231相对于转台2的回转轴线的偏心距离D1大于第二铰接结构232相对于转台2的回转轴线的偏心距离D2为例，对第一铰接结构231与第二铰接结构232的布置位置进行具体说明，其中，驾驶室4的后端与回转轴线之间的距离以D3表示，驾驶室4的前端与回转轴线之间的距离以D4表示。
在其中一个具体实施例中，可设置第一铰接结构231相对于回转轴线的偏心距离D1大于驾驶室4的后端与回转轴线之间的距离D3，第二铰接结构232相对于回转轴线的偏心距离D2小于或等于驾驶室4的后端与回转轴线之间的距离D3。由此，在铰接臂23相对于转台2的回转轴线回转至驾驶室4的上方时，第一铰接结构231分布于驾驶室4的正上方或前方，第二铰接结构232分布于驾驶室4的后方。
在另一个具体实施例中，可设置第一铰接结构231与第二铰接结构232相对于回转轴线的偏心距离D1与D2均大于驾驶室4的后端与回转轴线之间的距离D3，第一铰接结构231与第二铰接结构232相对于回转轴线的偏心距离D1与D2均小于驾驶室4的前端与回转轴线之间的距离D4。 由此，在铰接臂23相对于转台2的回转轴线回转至驾驶室4的上方时，第一铰接结构231与第二铰接结构232均分布于驾驶室4的正上方。
在另一个具体实施例中，可设置第一铰接结构231相对于回转轴线的偏心距离D1大于或等于驾驶室4的前端与回转轴线之间的距离D4，第二铰接结构232相对于回转轴线的偏心距离D2小于驾驶室4的后端与回转轴线之间的距离D3，或者，第二铰接结构232相对于回转轴线的偏心距离D2大于驾驶室4的后端与回转轴线之间的距离D3，且小于驾驶室4的前端与回转轴线之间的距离D4。由此，在铰接臂23相对于转台2的回转轴线回转至驾驶室4的上方时，第一铰接结构231分布于驾驶室4的前方，第二铰接结构232分布于驾驶室4的正上方或后方。
在另一个具体实施例中，可设置第一铰接结构231与第二铰接结构232相对于回转轴线的偏心距离D1与D2均大于驾驶室4的前端与回转轴线之间的距离D4。由此，在铰接臂23相对于转台2的回转轴线回转至驾驶室4的上方时，第一铰接结构231与第二铰接结构232均分布于驾驶室4的前方。
在此，通过如上对第一铰接结构231与第二铰接结构232的布置方案，可使得第一铰接结构231与第二铰接结构232两者当中至少有一个分布于驾驶室4的上方或前方，从而在将作业机械的臂架5的一端与第一铰接结构231相铰接，将第二铰接结构232与变幅机构的一端相铰接，并将变幅机构的另一端与臂架5的中部相铰接后，在铰接臂23相对于回转轴线回转的过程中，臂架5可随同铰接臂23回转至驾驶室4的上方，不仅能够大幅度增加臂架5的布置空间，确保臂架5的布置有效长度，还可有效降低臂架5的倾翻力矩，增强了臂架5的作业能力。
如图2至图3所示，本实施例所示的第一铰接结构231相对于回转轴线的偏心距离大于第二铰接结构232相对于回转轴线的偏心距离，第一铰接结构231设置的高度高于第二铰接结构232设置的高度。
具体的，为了进一步适应于第一铰接结构231与第二铰接结构232位置设置，本实施例可设置铰接臂23包括第一臂段与第二臂段；第一臂段的一端靠近回转轴线设置，第一臂段的另一端远离回转轴线设置，并连接第二臂段的一端；第一臂段与第二臂段设置呈钝角，第一铰接结构231设 置于第二臂段的另一端，第二铰接结构232设置于第一臂段与第二臂段的结合部。
在此，基于第一铰接结构231与第二铰接结构232的相对位置设置，可将第一铰接结构231与臂架5的一端相铰接，将第二铰接结构232与变幅机构的一端相铰接，变幅机构的另一端与臂架5的中部铰接，以便于变幅机构对臂架5较好地施加驱动力，从而改变臂架5的俯仰角度。
由于臂架5通常包括多个臂段，可设置为从首端到末端依次连接的第一臂、第二臂，…，第N臂，N为大于等于2的自然数。在此，本实施例所示的第一铰接结构231与第一臂的首端相铰接，第二铰接结构232与变幅机构的一端铰接，变幅机构的另一端与第一臂的中部铰接，其中，变幅机构可以为本领域所公知的液压油缸。
如图6所示，基于上述实施例的改进，为了较好地在铰接臂23上设置第一铰接结构231与第二铰接结构232，并为第一臂及变幅机构的偏摆提供避让空间，本实施例所示的铰接臂23包括第一侧板233、第二侧板234及封板235，第一侧板233与第二侧板234彼此间隔且并排布置，封板235连接于第一侧板233与第二侧板234之间。
如图6所示，本实施例所示的封板235设置有两块，其中一块封板235位于铰接臂23的第一臂段，另一块封板235位于铰接臂23的第二臂段，如此可确保铰接臂23达到较好的机械强度。
优选地，本实施例所示的转台2回转座，回转座安装于回转总成3上，铰接臂23安装于回转座上，其中，回转座可以为圆柱台、竖直支架等结构，以实现铰接臂23与回转总成3之间的连接。
如图4至图5所示，本实施例所示的回转座包括支撑座21与支撑臂22；支撑座21安装于回转总成3的回转支承结构上；支撑臂22安装于支撑座21上，支撑臂22可相对于转台2的回转轴线回转至驾驶室4的上方；铰接臂23安装于支撑臂22上，并沿支撑臂22的长度方向排布。
具体的，本实施例通过将转台2的支撑座21与回转总成相连接，并在支撑座21上安装可转动至作业机械的驾驶室4上方的支撑臂22，则基于支撑座21对支撑臂22提供高强度的机械支撑，确保了转台2的机械强度，使得转台2能够达到较大的偏心距离，从而在将铰接臂23安装于支 撑臂22上时，基于铰接臂23上第一铰接结构231与第二铰接结构232的位置设置，可使得与铰接臂23相连接的臂架5能够布置于驾驶室4的上方，以充分利用驾驶室4上方的空余空间，可有效增长臂架5的可布长度。
如图4与图5所示，为了确保转台2能够达到较大的偏心距离，本实施例将支撑臂22的第一端安装于支撑座21上，支撑臂22的第二端相对于转台2的回转轴线的偏心距离大于驾驶室4的后端与回转轴线之间的距离。在此，可具体设置支撑臂22的第二端相对于回转轴线的偏心距离小于驾驶室4的前端与回转轴线之间的距离，从而在支撑臂22相对于回转轴线在进行回转时，支撑臂22的第二端可回转至驾驶室4的正上方；另外，还可设置支撑臂22的第二端相对于回转轴线的偏心距离大于或等于驾驶室4的前端与回转轴线之间的距离，从而在支撑臂22相对于回转轴线在进行回转时，支撑臂22的第二端可回转至驾驶室4的前方。
如图2与图3所示，为了防止支撑臂22在回转的过程中与驾驶室4相干涉，本实施例设置支撑臂22的第一端安装于支撑座21的上端，支撑臂22设置的高度及支撑座21的上端设置的高度均高于驾驶室4的顶部。
在此应指出的是，在支撑座21的上端设置的高度均低于驾驶室4的顶部的情况下，由于支撑臂22的第一端安装于支撑座21的上端，在此，只需设置支撑臂22靠近其第二端的一段设置的高度高于驾驶室4的顶部即可。
如图2与图5所示，在支撑臂22与支撑座21相连接的一端的设置高度高于驾驶室4的顶部的情况下，本实施例可将支撑臂22设置呈水平布置的状态。
基于上述实施例的改进，本实施例所示的支撑座21包括底座211与塔筒212，底座211安装于回转支承结构上，塔筒212的下端连接底座211，塔筒212的上端连接支撑臂22的第一端。
如图4所示，本实施例所示的底座211可以为与回转支承结构相匹配的圆形底板，可将塔筒212竖直安装于底座211上，由于塔筒212呈圆形，具有较强的抗倾覆性，从而基于底座211与塔筒212的连接结构，可达到较好的机械强度。
与此同时，本实施例所示的支撑臂22为支撑板，上述实施例所示的 第一侧板233及第二侧板234均竖直安装于支撑板上。
进一步的，在本实施例所示的作业机械为混凝土泵车的情况下，本实施例还可在塔筒212的筒壁上开设第一穿管口与检修口，其中，第一穿管口与检修口以相对布置的方式开设于塔筒212的筒壁上，检修口便于工作人员对转台进行检修，并便于对转台上的输送管实施安装，在底座211的端面上开设第二穿管口，第二穿管口处于塔筒212所在的区域内。在此，通过设置第一穿管口与第二穿管口，可便于将混凝土泵车上的输送管依次穿过第一穿管口与第二穿管口，以便于与车体1上的泵送系统相连接。
进一步的，为了确保底座211与回转支承结构之间的可靠连接，本实施例在底座211上开设有多个沿圆周排布的安装孔，将底座211与回转支承结构之间通过穿过安装孔的螺栓锁紧组件连接。
综上所述，本实施例所示的作业机械，通过对现有的转台进行改进，在回转总成的回转支承结构上安装位于下层的支撑座21，在支撑座21的上侧安装支撑臂22，以构成上、下分层结构，使得转台2具有较高的机械强度，可回转至作业机械的驾驶室4的上方，使得转台2能够达到较大的偏心距离，从而基于支承臂上布设铰接臂23，对铰接臂23上的第一铰接结构231与第二铰接结构232的位置进行设置，使得铰接臂23在沿着转台2的回转轴线回转至驾驶室4的上方时，第一铰接结构231与第二铰接结构232可位于驾驶室4的上方或前方，从而可使得臂架5能够相应地布置于驾驶室4的上方或前方，以充分利用驾驶室4上方的空余空间，有效增长臂架5的可布长度，同时可有效降低臂架5的倾翻力矩，增强了臂架5的作业能力。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (13)

  1. 一种作业机械，包括：
    车体，所述车体上装有位于驾驶室后方的回转总成；
    转台，所述转台安装于所述回转总成上，所述转台包括铰接臂，所述铰接臂能够相对于所述转台的回转轴线回转至所述驾驶室的上方，所述铰接臂上设有第一铰接结构与第二铰接结构，所述第一铰接结构和所述第二铰接结构中至少一者相对于所述回转轴线的偏心距离大于所述驾驶室的后端与所述回转轴线之间的距离；
    臂架及变幅机构，所述第一铰接结构与所述臂架的端部铰接，所述第二铰接结构与所述变幅机构的一端铰接，所述变幅机构的另一端与所述臂架的中部铰接。
  2. 根据权利要求1所述的作业机械，其中所述第一铰接结构相对于所述回转轴线的偏心距离大于所述驾驶室的后端与所述回转轴线之间的距离，所述第二铰接结构相对于所述回转轴线的偏心距离小于或等于所述驾驶室的后端与所述回转轴线之间的距离。
  3. 根据权利要求1所述的作业机械，其中所述第一铰接结构与所述第二铰接结构相对于所述回转轴线的偏心距离均大于所述驾驶室的后端与所述回转轴线之间的距离，所述第一铰接结构与所述第二铰接结构相对于所述回转轴线的偏心距离均小于所述驾驶室的前端与所述回转轴线之间的距离。
  4. 根据权利要求1所述的作业机械，其中所述第一铰接结构相对于所述回转轴线的偏心距离大于或等于所述驾驶室的前端与所述回转轴线之间的距离；
    所述第二铰接结构相对于所述回转轴线的偏心距离小于所述驾驶室的后端与所述回转轴线之间的距离，或者，所述第二铰接结构相对于所述回转轴线的偏心距离大于或等于所述驾驶室的后端与所述回转轴线之间的距离，且小于所述驾驶室的前端与所述回转轴线之间的距离。
  5. 根据权利要求1所述的作业机械，其中所述第一铰接结构与所述第二铰接结构相对于所述回转轴线的偏心距离均大于所述驾驶室的前端与所述回转轴线之间的距离。
  6. 根据权利要求1所述的作业机械，其中所述第一铰接结构相对于所述回转轴线的偏心距离大于所述第二铰接结构相对于所述回转轴线的偏心距离，所述第一铰接结构设置的高度高于所述第二铰接结构设置的高度。
  7. 根据权利要求6所述的作业机械，其中所述铰接臂包括第一臂段与第二臂段；所述第一臂段的一端靠近所述回转轴线设置，所述第一臂段的另一端远离所述回转轴线设置，并连接所述第二臂段的一端；所述第一臂段与所述第二臂段设置呈钝角，所述第一铰接结构设置于所述第二臂段的另一端，所述第二铰接结构设置于所述第一臂段与所述第二臂段的结合部。
  8. 根据权利要求1至7任一所述的作业机械，其中所述转台包括回转座，所述回转座安装于所述回转总成上，所述铰接臂安装于所述回转座上。
  9. 根据权利要求8所述的作业机械，其中所述回转座包括支撑座与支撑臂；所述支撑座安装于所述回转总成的回转支承结构上；所述支撑臂安装于所述支撑座上，所述支撑臂能够相对于所述回转轴线回转至所述驾驶室的上方；所述铰接臂安装于所述支撑臂上，并沿所述支撑臂的长度方向排布。
  10. 根据权利要求9所述的作业机械，其中所述支撑臂的第一端安装于所述支撑座上，所述支撑臂的第二端相对于所述回转轴线的偏心距离大于所述驾驶室的后端与所述回转轴线之间的距离，且小于所述驾驶室的前端与所述回转轴线之间的距离；或者，所述支撑臂的第二端相对于所述回转轴线的偏心距离大于或等于所述驾驶室的前端与所述回转轴线之间的距离。
  11. 根据权利要求10所述的作业机械，其中所述支撑臂的第一端安装于所述支撑座的上端，所述支撑座的上端设置的高度高于所述驾驶室的顶部；
    和/或，所述支撑臂呈水平设置。
  12. 根据权利要求11所述的作业机械，其中所述支撑座包括底座与塔筒，所述底座安装于所述回转支承结构上，所述塔筒的下端连接所述底 座，所述塔筒的上端连接所述支撑臂的第一端。
  13. 根据权利要求12所述的作业机械，其中所述塔筒的筒壁上开设有第一穿管口与检修口，所述底座的端面上开设有第二穿管口，所述第二穿管口处于所述塔筒所在的区域内；
    和/或，所述铰接臂包括第一侧板、第二侧板及封板，所述第一侧板与所述第二侧板彼此间隔且并排布置，所述封板连接于所述第一侧板与所述第二侧板之间，所述支撑座的底座为底板，所述支撑臂为支撑板，所述第一侧板及所述第二侧板竖直安装于所述支撑板上。
PCT/CN2021/103557 2020-11-18 2021-06-30 作业机械 WO2022105239A1 (zh)

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