WO2011097861A1 - 履带式行走机械支腿油缸及履带式行走机械 - Google Patents

履带式行走机械支腿油缸及履带式行走机械 Download PDF

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Publication number
WO2011097861A1
WO2011097861A1 PCT/CN2010/074263 CN2010074263W WO2011097861A1 WO 2011097861 A1 WO2011097861 A1 WO 2011097861A1 CN 2010074263 W CN2010074263 W CN 2010074263W WO 2011097861 A1 WO2011097861 A1 WO 2011097861A1
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Prior art keywords
cylinder
piston rod
leg
lifting
crawler
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PCT/CN2010/074263
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English (en)
French (fr)
Inventor
汪建利
赵明辉
邓义君
Original Assignee
湖南三一智能控制设备有限公司
三一重工股份有限公司
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Publication of WO2011097861A1 publication Critical patent/WO2011097861A1/zh

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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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated

Definitions

  • the utility model relates to a crawler type traveling machine, in particular to a leg cylinder for a crawler type traveling machine steering system and a crawler type walking machine having the leg cylinder.
  • the piston rod of the leg cylinder is hinged with the lifting bracket through the pin shaft, and the cylinder body is connected to the frame through the leg flange.
  • the steering cylinders are sequentially deflected by the steering sleeve, the legs and the lifting bracket to deflect the track relative to the frame to achieve steering.
  • the existing leg cylinders are directly connected to the head and the oil head can not be locked when the pipe is bursting, which is prone to tipping and causing a safety accident.
  • the existing leg cylinder has a large cylinder diameter, a long stroke, and a large cylinder size, which makes processing difficult.
  • the technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide a crawler type traveling machine leg cylinder which can eliminate the sway, improve the reliability and the stability, reduce the precision requirement and the production cost, and has The crawler type walking machine of the leg cylinder.
  • a crawler type walking machine leg cylinder comprises a cylinder body and a piston rod, wherein one end of the piston rod is sleeved in the cylinder body, and the other end is provided with a piston rod head, and the cylinder body is provided with a cylinder at an end away from the piston rod head
  • the body base, the piston rod head and the cylinder base are respectively provided with joint bearings for connecting with the connecting parts of the leg cylinders.
  • a valve block superimposing surface is disposed on the piston rod head, and a first oil passage and a second oil passage are disposed in the piston rod head, and one end of the first oil passage leads to a superposition surface of the valve block, and the other end and the leg
  • the cylinder has a rod cavity communication, and one end of the second oil passage leads to the superimposed surface of the valve block, and the other end communicates with the rod chamber of the leg cylinder.
  • the cylinder body comprises a base connecting member, a cylinder barrel, a cylinder flange and a guiding sleeve, wherein one end of the cylinder is connected with the base connecting member, and the other end is connected to the cylinder flange, and the guiding sleeve is set on the cylinder flange Inside, and fixedly connected to the cylinder flange.
  • a crawler type traveling machine comprises a frame, a crawler assembly, a steering mechanism and an lifting leg, wherein the crawler assembly is provided with a lifting bracket, one end of the lifting leg is connected with the frame, and the other end is connected with the lifting bracket
  • the steering mechanism is mounted on the lifting leg, and the above-mentioned crawler type walking machine leg cylinder is disposed in the lifting leg.
  • the utility model has the advantages that the crawler type walking machine leg cylinder of the utility model is provided with a joint bearing for connecting with the connecting member of the leg cylinder on the piston rod head and the cylinder base.
  • the crawler type walking machine When the crawler type walking machine is turned, the piston rod of the leg cylinder and the cylinder body will rotate relative to each other. Since the leg cylinder and the connecting member are connected by the joint bearing, when the piston rod has a tendency to be relatively locked, the leg The piston rod of the cylinder and the cylinder body are naturally tilted, thereby avoiding the piston rod from being swayed relative to the cylinder block, improving the movement stability of the leg cylinder, and protecting the sealing member in the cylinder body from oil leakage.
  • the piston rod head is provided with a valve block superimposed surface, so that the oil cylinder inlet and outlet oil passages are connected with the external oil passage by means of the superimposed valve group.
  • the valve group blocks the connection between the internal oil passage of the oil cylinder and the external oil pipe, and the oil cylinder Lock up, avoid oil draining, and prevent the walking machinery from tipping over.
  • the cylinder block includes a base connecting piece, a cylinder barrel, a cylinder flange and a guiding sleeve.
  • the cylinder barrel and the cylinder flange can be processed by using steel materials with different outer diameters, which can save materials and ensure the processing of the cylinder flange. Precision.
  • the above-mentioned crawler type traveling machine leg cylinder is provided in the ascending and descending leg, and the operation is stable and reliable, the service life is long, the manufacturing cost is low, and the utility model is convenient for popularization and application.
  • FIG. 1 is a schematic structural view of a crawler type walking machine leg cylinder of the present invention
  • FIG. 2 is a schematic structural view of a crawler type walking machine of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • the crawler type traveling machine leg cylinder of the present invention comprises a cylinder 1 and a piston rod 2, wherein the piston rod 2 is sleeved in the cylinder 1 and the other end is provided with a piston rod.
  • the head 3 is provided with a cylinder base 4 at one end of the cylinder block 1 away from the piston rod head 3.
  • the piston rod head 3 and the cylinder base 4 are provided with bearing mounting holes, and the bearing mounting holes are provided with components for connecting with the leg cylinders. Connected joint bearing 5, when the crawler type walking machine is turned, the piston rod 2 of the leg cylinder The relative rotation with the cylinder block 1 occurs.
  • the piston rod head 3 is provided with a valve block superimposing surface 303, and the first oil passage 301 and the second oil passage 302 are disposed in the piston rod head 3, and the first oil passage 301 and the second oil passage 302 are wound around.
  • the switch joint bearing 5 is disposed, the first oil passage 301 is connected to the valve block superimposing surface 303, the other end is connected to the leg cylinder having the rod cavity 6, and the second oil passage 302 is connected to the valve block superimposing surface 303, and the other end is It is connected with the rodless chamber 7 of the leg cylinder, and a stacking valve group can be installed on the valve block superimposing surface 303, so that the oil cylinder inlet and outlet oil passages are connected with the external oil passage by means of the superimposed valve group, and when the squib failure occurs, the valve block is blocked.
  • the internal oil passage of the cylinder is connected with the external oil pipe to lock the cylinder to prevent the oil cylinder from draining and prevent the traveling machinery from tipping over.
  • the cylinder block 1 is formed by the base connecting member 101, the cylinder tube 102, the cylinder flange 103 and the guide sleeve 104, and the cylinder 102-end is connected with the base connecting member 101, and the other end is connected with the cylinder tube method.
  • the flange 103 is connected, the guide sleeve 104 is sleeved in the cylinder flange 103, and is connected with the cylinder flange 103.
  • the cylinder barrel 102 and the cylinder flange 103 can be processed by welding with different outer diameter steels. The utility model can save valuable materials and save cost, and can effectively ensure the processing precision of the cylinder flange 103.
  • the crawler type traveling machine of the present invention comprises a frame 11, a track assembly 8, a steering mechanism and an lifting leg 10, and the crawler assembly 8 is provided with a lifting bracket 9
  • the lifting leg 10 is connected to the frame 11 and the other end is connected to the lifting bracket 9.
  • the steering mechanism includes a steering cylinder 12 and a steering sleeve 13, and the steering sleeve 13 is sleeved outside the lifting leg 10 and the lifting leg 10
  • the fixed connection, the steering cylinder 12-end is fixed on the frame 11, and the other end is connected to the steering sleeve 13.
  • the lifting leg 10 is provided with the crawler type walking mechanical leg cylinder of the first embodiment, and the crawler type walking mechanical leg cylinder
  • the piston rod head 3 is hinged to the connecting seat on the frame 11 via a joint bearing 5, and the cylinder base 4 is hinged to the connecting seat on the lifting bracket 9 via another joint bearing 5.
  • the steering cylinder 12 pushes the steering sleeve 13
  • the steering sleeve 13 drives the crawler assembly 8 to be steered by the lifting leg 10 and the lifting bracket 9.
  • the crawler type traveling machine disposed in the lifting leg 10 In the leg cylinder the piston rod 2 starts to rotate relative to the cylinder block 1.
  • the piston rod 2 Due to the installation coaxiality error, the piston rod 2 has a tendency to be swayed relative to the cylinder block 1. Under the joint action of the two joint bearings 5, the piston rod 2 The cylinder body 1 will naturally tilt, thereby preventing the piston rod 2 from being swayed relative to the cylinder block 1, improving the movement stability of the leg cylinder, and protecting the seal in the cylinder block 1 from oil leakage.
  • the crawler type traveling machine runs smoothly and reliably, has a long service life, and is reduced in manufacturing cost, and is convenient for popularization and application.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Description

履带式行走机械支腿油缸及履带式行走机械 技术领域
本实用新型涉及履带式行走机械，尤其涉及用于履带式行走机械转向系统中的支腿 油缸以及具有该支腿油缸的履带式行走机械。
背景技术
目前， 国内外履带式行走机械的行走机构结构中， 支腿油缸的活塞杆通过销轴与升 降支架铰接， 缸体通过支腿法兰与机架连接。 转向操作时， 转向油缸依次经转向套、 支 腿和升降支架带动履带相对机架产生偏转， 实现转向。 在此过程中， 支腿油缸的缸体固 定， 与升降支架通过销轴铰接的活塞杆随升降支架一起转动， 即支腿油缸的活塞杆与缸 筒会发生相对转动， 由于油缸活塞杆安装轴心线与支腿中心线不可避免的存在着同轴度 误差， 导致活塞杆在升降支架的带动下实际上相对缸体产生了挠动， 从而影响到支腿油 缸的运动稳定性， 破坏密封件结构， 出现漏油等故障。 因此， 为了尽可能减少挠动， 现 有结构对制造及装配精度的要求很高， 使得生产成本也很高。 另外， 现有支腿油缸进出 油管与杆头直接连接， 爆管时油缸不能锁定， 易发生倾翻而造成安全事故。 同时， 现有 支腿油缸缸径大、 行程长， 缸筒尺寸大， 导致加工难度较大。
实用新型内容
本实用新型要解决的技术问题是克服现有技术的不足， 提供一种可消除挠动、 改善 了可靠性和平稳性、 降低了精度要求和生产成本的履带式行走机械支腿油缸， 以及具有 该支腿油缸的履带式行走机械。
为解决上述技术问题， 本实用新型采用以下技术方案：
一种履带式行走机械支腿油缸，包括缸体和活塞杆，所述活塞杆一端套设于缸体内， 另一端设有活塞杆头， 所述缸体远离活塞杆头的一端设有缸体底座， 所述活塞杆头与缸 体底座上均装设有用于与支腿油缸相连部件连接的关节轴承。
所述活塞杆头上设有阀块叠加面， 所述活塞杆头内设有第一油道和第二油道， 所述 第一油道一端通向阀块叠加面， 另一端与支腿油缸有杆腔连通， 所述第二油道一端通向 阀块叠加面， 另一端与支腿油缸无杆腔连通。
所述缸体包括底座连接件、 缸筒、 缸筒法兰和导向套， 所述缸筒一端与底座连接件 连接，另一端与缸筒法兰连接，所述导向套套设于缸筒法兰内， 并与缸筒法兰固定连接。 一种履带式行走机械， 包括机架、 履带总成、 转向机构和升降支腿， 所述履带总成 上设有升降支架， 所述升降支腿一端与机架连接， 另一端与升降支架相连， 所述转向机 构装设于升降支腿上， 所述升降支腿内设有上述的履带式行走机械支腿油缸。
与现有技术相比，本实用新型的优点在于：本实用新型的履带式行走机械支腿油缸， 在活塞杆头与缸体底座上均装设有用于与支腿油缸相连部件连接的关节轴承，在履带式 行走机械转向时， 支腿油缸的活塞杆与缸体会发生相对转动， 由于支腿油缸与相连部件 通过关节轴承连接， 当活塞杆具有相对缸体挠动的趋势时， 支腿油缸的活塞杆与缸体自 然倾转， 从而避免活塞杆相对缸体产生挠动， 提高支腿油缸的运动稳定性， 使缸体内的 密封件受到保护， 防止出现漏油的故障。 活塞杆头上设有阀块叠加面， 使油缸进出油路 通过叠加阀组的方式与外部油路相连， 发生爆管故障时， 阀组阻断油缸内部油道与外部 油管的连接， 将油缸锁死， 避免油缸泄油， 防止行走机械倾翻。 缸体包括底座连接件、 缸筒、 缸筒法兰和导向套， 缸筒与缸筒法兰两部分可选用不同外径的钢材进行加工， 可 以节约材料， 同时可以保证缸筒法兰的加工精度。 本实用新型的履带式行走机械中， 升 降支腿内设有上述的履带式行走机械支腿油缸， 其运行平稳、 可靠， 使用寿命长， 制造 成本低， 便于推广应用。
附图说明
图 1是本实用新型的履带式行走机械支腿油缸结构示意图；
图 2是本实用新型的履带式行走机械结构示意图；
图 3是图 2的 A-A剖视图。
图中各标号表示：
1、 缸体； 2、 活塞杆； 3、 活塞杆头； 4、 缸体底座； 5、 关节轴承； 6、 有杆腔； 7、 无杆腔； 8、 履带总成； 9、 升降支架； 10、 升降支腿； 11、 机架； 12、 转向油缸； 13、 转向套； 101、 底座连接件； 102、 缸筒； 103、 缸筒法兰； 104、 导向套； 301、 第一油 道； 302、 第二油道； 303、 阀块叠加面。
具体实施方式
实施例 1 : 如图 1所示， 本实用新型的履带式行走机械支腿油缸， 包括缸体 1和活塞 杆 2， 活塞杆 2—端套设于缸体 1内， 另一端设有活塞杆头 3， 缸体 1远离活塞杆头 3的一端 设有缸体底座 4， 活塞杆头 3与缸体底座 4上均设有轴承安装孔， 轴承安装孔内装设有用 于与支腿油缸相连部件连接的关节轴承 5， 履带式行走机械转向时， 支腿油缸的活塞杆 2 与缸体 1会发生相对转动， 由于支腿油缸与相连部件通过关节轴承 5连接， 当活塞杆 2具 有相对缸体 1挠动的趋势时， 活塞杆 2与缸体 1会自然倾转， 从而避免活塞杆 2相对缸体 1 产生挠动， 提高支腿油缸的运动稳定性， 使缸体 1内的密封件受到保护， 防止出现漏油 的故障。 本实施例中， 活塞杆头 3上设有阀块叠加面 303， 活塞杆头 3内设有第一油道 301 和第二油道 302， 第一油道 301和第二油道 302均绕开关节轴承 5设置， 第一油道 301—端 通向阀块叠加面 303， 另一端与支腿油缸有杆腔 6连通， 第二油道 302—端通向阀块叠加 面 303， 另一端与支腿油缸无杆腔 7连通， 在阀块叠加面 303上可安装叠加阀组， 使油缸 进出油路通过叠加阀组的方式与外部油路相连， 发生爆管故障时， 阀组阻断油缸内部油 道与外部油管的连接， 将油缸锁死， 避免油缸泄油， 防止行走机械倾翻。 本实施例中， 缸体 1由底座连接件 101、 缸筒 102、 缸筒法兰 103和导向套 104组焊而成， 缸筒 102—端与 底座连接件 101连接， 另一端与缸筒法兰 103连接， 导向套 104套设于缸筒法兰 103内， 并 与缸筒法兰 103连接， 缸筒 102与缸筒法兰 103两部分可选用不同外径的钢材进行加工后 焊接为一体， 可以节约贵重材料， 节省成本， 同时可有效保证缸筒法兰 103的加工精度。
实施例 2: 如图 2和图 3所示， 本实用新型的履带式行走机械， 包括机架 11、 履带总 成 8、 转向机构和升降支腿 10， 履带总成 8上设有升降支架 9， 升降支腿 10—端与机架 11 连接， 另一端与升降支架 9连接， 转向机构包括转向油缸 12和转向套 13， 转向套 13套设 于升降支腿 10外， 并与升降支腿 10固定连接， 转向油缸 12—端固定于机架 11上， 另一端 与转向套 13相连， 升降支腿 10内设有如实施例 1的履带式行走机械支腿油缸， 履带式行 走机械支腿油缸中活塞杆头 3通过关节轴承 5与机架 11上的连接座铰接， 缸体底座 4通过 另一关节轴承 5与升降支架 9上的连接座铰接。 当转向油缸 12推动转向套 13时， 转向套 13 经升降支腿 10和升降支架 9带动履带总成 8转向， 此时， 在升降支架 9带动下， 升降支腿 10内设置的履带式行走机械支腿油缸中活塞杆 2开始相对缸体 1转动， 由于存在安装同轴 度误差， 活塞杆 2具有相对缸体 1产生挠动的趋势， 在两个关节轴承 5的共同作用下， 活 塞杆 2与缸体 1会自然倾转， 从而避免活塞杆 2相对缸体 1产生挠动， 提高支腿油缸的运动 稳定性， 使缸体 1内的密封件受到保护， 防止出现漏油的故障， 使该履带式行走机械运 行平稳、 可靠， 使用寿命延长， 制造成本降低， 便于推广应用。
以上所述仅是本实用新型的优选实施方式，本实用新型的保护范围并不仅局限于上 述实施例， 凡属于本实用新型思路下的技术方案均属于本实用新型的保护范围。 应当指 出， 对于本技术领域的普通技术人员来说， 在不脱离本实用新型原理前提下的若干改进 和润饰也应视为本实用新型的保护范围 <

Claims

权 利 要 求
1、 一种履带式行走机械支腿油缸， 包括缸体（1 )和活塞杆（2) ， 所述活塞杆（2) 一端套设于缸体（1 ) 内， 另一端设有活塞杆头（3) ， 所述缸体（1 )远离活塞杆头（3) 的一端设有缸体底座 （4) ， 其特征在于： 所述活塞杆头 （3) 与缸体底座 （4) 上均装 设有用于与支腿油缸相连部件连接的关节轴承 （5) 。
2、 根据权利要求 1所述的履带式行走机械支腿油缸， 其特征在于： 所述活塞杆头 (3) 上设有阀块叠加面 （303) ， 所述活塞杆头 （3) 内设有第一油道 （301 ) 和第二油 道 （302) ， 所述第一油道 （301 ) —端通向阀块叠加面 （303) ， 另一端与支腿油缸有 杆腔 （6) 连通， 所述第二油道 （302) —端通向阀块叠加面 （303) ， 另一端与支腿油 缸无杆腔 （7) 连通。
3、 根据权利要求 1或 2所述的履带式行走机械支腿油缸， 其特征在于： 所述缸体 ( 1 ) 包括底座连接件 （101 ) 、 缸筒 （102) 、 缸筒法兰 （103) 和导向套 （104) ， 所 述缸筒 （102) —端与底座连接件 （101 ) 连接， 另一端与缸筒法兰 （103) 连接， 所述 导向套 （104) 套设于缸筒法兰 （103) 内， 并与缸筒法兰 （103) 固定连接。
4、 一种履带式行走机械， 包括机架 （11 ) 、 履带总成 （8) 、 转向机构和升降支腿 ( 10)， 所述履带总成（8)上设有升降支架（9)， 所述升降支腿（10)—端与机架（11 ) 连接， 另一端与升降支架 （9) 相连， 所述转向机构装设于升降支腿 （10) 上， 其特征 在于： 所述升降支腿 （10) 内设有如权利要求 1〜3 中任一项所述的履带式行走机械支 腿油缸。
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