WO2011079491A1 - 使用双液压平衡系统的两柱汽车举升机 - Google Patents

使用双液压平衡系统的两柱汽车举升机 Download PDF

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Publication number
WO2011079491A1
WO2011079491A1 PCT/CN2010/000979 CN2010000979W WO2011079491A1 WO 2011079491 A1 WO2011079491 A1 WO 2011079491A1 CN 2010000979 W CN2010000979 W CN 2010000979W WO 2011079491 A1 WO2011079491 A1 WO 2011079491A1
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WIPO (PCT)
Prior art keywords
cylinder
main
hydraulic
sub
circuit
Prior art date
Application number
PCT/CN2010/000979
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English (en)
French (fr)
Original Assignee
金景善
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 金景善 filed Critical 金景善
Publication of WO2011079491A1 publication Critical patent/WO2011079491A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement

Definitions

  • the utility model relates to an automobile lifting machine, in particular to a hydraulic balancing device of a lifting machine.
  • Hydraulic two-post lifts for automotive maintenance are usually balanced by wire rope balancing systems or single-circuit hydraulic synchronization technology; mechanical safety locking mechanisms are used to ensure safe use in the event of a hydraulic system failure.
  • Wire rope balance system wire rope is easy to break, wear, the system accessories need a lot of maintenance, the wire rope riveting is easy to break, can cause sudden pressure loss or pressurization in the hydraulic oil circuit system, so that the unbroken wire rope bears the load
  • the danger of all weight and impact force the hydraulic system is prone to overpressure hazard, causing bursting.
  • the characteristics of the wire rope itself determine that the wire rope itself is easy to extend. During use, it needs to be adjusted frequently, or the mechanical or electrical testing mechanism for the wire rope needs to be added, resulting in an increase in system cost.
  • the single-circuit hydraulic synchronization technology has a failure of the hydraulic system, and the balance system also fails. In this case, the safety of the lift system cannot be guaranteed.
  • the synchronous cylinder can ensure synchronization with the main cylinder during the ascent, but during the lowering process, if the main cylinder is faster than the synchronous cylinder, the synchronization with the main cylinder cannot be guaranteed. As a result, the safety of the lift system cannot be guaranteed.
  • the present invention provides a two-column car lift using a dual hydraulic balance system.
  • the utility model discloses a two-column car lift using a double hydraulic balance system.
  • the hydraulic balance system includes a main cylinder and a sub-cylinder.
  • the main cylinder is a double-acting cylinder
  • the sub-cylinder is a single-acting cylinder.
  • the cavity forms a passage with the lower chamber of the sub-cylinder to form a hydraulic balance circuit; the hydraulic balance device is provided with two sets of balance circuits in parallel.
  • the above two sets of balance circuits include two sets of main cylinders and auxiliary cylinders; wherein the main cylinder of the first balance circuit is installed on the main column of the lift, and the auxiliary cylinder is mounted on the auxiliary column; another balance circuit is In the phase, the main cylinder is mounted on the auxiliary column of the lift, and the auxiliary cylinder is mounted on the main column.
  • the main cylinders of the two sets of balance circuits are provided with hydraulic explosion-proof valves.
  • the utility model has the advantages that the double-column lifter is composed of two parallel circuits in comparison with the existing single-circuit hydraulic balance system; it can ensure the primary oil cylinder and the second circuit by the first circuit
  • the subsystem consisting of the balance cylinder can be completely balanced with the subsystem consisting of the second circuit main cylinder and the first circuit auxiliary cylinder during the ascending, stopping or descending process.
  • the hydraulic explosion-proof valve is installed in the main cylinder, any component in the hydraulic system fails, which ensures the balance and safety of the lift system. It is able to completely replace the distribution valve balancing system in the car lift system.
  • Figure 1 is a front view of the utility model
  • Figure 2 is a plan view of the utility model
  • Figure 3 is an oil circuit diagram of the present invention.
  • a two-column car lift using a dual hydraulic balance system the hydraulic balance system includes a main cylinder 1 and a sub-cylinder 2, and the main cylinders 1 are provided with hydraulic explosion-proof valves, which are double The working cylinder, the auxiliary cylinder 2 is a single-acting cylinder, and the upper chamber of the main cylinder 1 forms a passage with the lower chamber of the sub-cylinder 2 to form a hydraulic balance circuit; the hydraulic balancing device is also provided with another balance circuit in parallel, namely the main cylinder 3 and the auxiliary cylinder 4;
  • the balance circuit main cylinder 3 and the sub-cylinder 4 are the same as the main cylinder 1 and the sub-cylinder 2 of the previous balance circuit.
  • the two balance circuits comprise two sets of main and auxiliary cylinders; wherein the main cylinder 1 of the first balance circuit is mounted on the main column 5 of the lift, the sub-cylinder 2 is mounted on the sub-column 6; On the contrary, the main cylinder 3 is mounted on the lift sub-column 6, and the sub-cylinder 4 is mounted on the main upright 5.
  • the upper chambers of the two main cylinders 1 and 3 form a passage with the lower chambers of the two sub-cylinders 2 and 4, and the space can be exchanged with each other, and the movement of the pistons is kept synchronized.
  • the rest is the control system.
  • the lower cylinder of the main cylinder enters the oil, and the piston of the main cylinder rises while the oil in the upper chamber of the main cylinder is driven into the lower chamber of the sub-cylinder to raise the piston of the sub-cylinder.
  • the two pistons are in sync.
  • Stop The pistons of the main and auxiliary cylinders stop moving.

Description

说 明 书
使用双液压平衡系统的两柱汽车举升机
技术领域
本实用新型涉及一种汽车举升机， 具体的说是涉及举升机的液压平衡装置。
背景技术
应用于汽车维修的液压两柱举升机，通常采用钢丝绳来平衡系统或者单回路液压 同步技术来进行平衡；采用机械式的安全锁定机构来保证在液压系统失效的情况下的 使用安全性。
钢丝绳平衡系统， 钢丝绳易断股、磨损， 系统内配件需要大量的维护， 钢丝绳铆 接处易幵断，能够导致液压油路系统中突然失压或者增压， 从而使得未开断的钢丝绳 要承受负载全部重量及冲击力的危险， 液压系统易产生过压的危害， 引发爆裂。钢丝 绳本身的特性决定了钢丝绳本身易延长， 在使用过程当中， 需要经常调节， 或者需要 增加针对钢丝绳的机械或者电器检测机构， 从而造成系统成本的增加。
单回路液压同步技术存在液压系统失效的同时,平衡系统也即失效，在此情况下， 使得举升机系统的安全性不能得到保证。单回路液压同步系统， 同步油缸在上升的过 程当中， 能够保证与主油缸的同步， 但在下降过程当中， 如果主油缸的速度快于同步 油缸， 则不能保证与主油缸的同步。 从而使得举升机系统的安全性不能得到保证。
发明内容
针对已有技术的不足，本实用新型提供一种使用双液压平衡系统的两柱汽车举升 机。
以下详细介绍本实用新型，一种使用双液压平衡系统的两柱汽车举升机；其液压 平衡系统包括主油缸和副油缸， 主油缸为双作用缸， 副油缸为单作用缸， 主油缸上腔 与副油缸下腔形成通路， 形成液压平衡回路； 该液压平衡装置设置并联的两套平衡回 路。 说 明 书
优化的，上述两套平衡回路包括两套主油缸和副油缸；其中第一套平衡回路的主 油缸安装在举升机主立柱上， 副油缸安装在副立柱上； 另一套平衡回路则与之相 ， 主油缸安装在举升机副立柱上， 副油缸安装在主立柱上。
优化的， 所述两套平衡回路的主油缸均设置液压防爆阀。
本实用新型的优点是：该双柱举升机相对于现有的单回路液压平衡系统，双回路 液压平衡系统由两个并联的回路组成；它能够保证由第一回路主油缸和第二回路平衡 油缸组成的子系统在上升、停止或者下降的过程当中都能够和第二回路主油缸与第一 回路副油缸组成的子系统完全地平衡。 同时， 因为主油缸内安装了液压防爆阀， 液压 系统内任一部件失效， 都能够保证举升机系统的平衡和安全。能够在汽车举升机系统 内完全代替分配阀平衡系统。
附图说明
图 1是本实用新型的主视图；
图 2是本实用新型的俯视图；
图 3是本实用新型的油路图。
具体实施方式
以下结合说明书附图对本发明作进一步披露。
请参阅附图 1和附图 2， 一种使用双液压平衡系统的两柱汽车举升机； 其液压平 衡系统包括主油缸 1和副油缸 2， 主油缸 1均设置液压防爆阀， 其为双作用缸， 副油 缸 2为单作用缸， 主油缸 1上腔与副油缸 2下腔形成通路， 形成液压平衡回路； 该液 压平衡装置还设置并联的另一套平衡回路即主油缸 3和副油缸 4; 该平衡回路得主油 缸 3和副油缸 4与前一平衡回路的主油缸 1和副油缸 2相同。
两套平衡回路包括两套主油缸和副油缸；其中第一套平衡回路的主油缸 1安装在 举升机主立柱 5上， 副油缸 2安装在副立柱 6上； 另一套平衡回路则与之相反， 主油 缸 3安装在举升机副立柱 6上， 副油缸 4安装在主立柱 5上。
该双液压平衡系统的两柱汽车举升机液压平衡系统一个可行的油路图，请参阅说 明书附图 3。 ― 说 明 书
两个主油缸 1和 3的上腔与两个副油缸 2和 4的下腔形成通路，可以相互交换空 间， 活塞的移动保持同步。 其余为控制系统。
上升：主油缸下腔进油，主油缸活塞上升的同时把主油缸上腔的油打进副油缸下 腔， 使副油缸的活塞上升。 两活塞保持同步。
停止： 主副油缸的活塞都停止移动。
下降：主油缸下腔回油到油箱，主油缸活塞下降的同时把副油缸下腔的油打进主 油缸上腔， 使主油缸的活塞下降。 两活塞保持同步。 当然， 上述说明并非是对本实用新型的限制， 本实用新型也并不限于上述举例， 本技术领域的普通技术人员， 在本实用新型的实质范围内， 作出的变化、 改型、 添加 或替换， 都应属于本实用新型的保护范围。

Claims

权 利 要 求 书
1、 一种使用双液压平衡系统的两柱汽车举升机； 其液压平衡系统包括主油缸 和副油缸， 主油缸为双作用缸， 副油缸为单作用缸， 主油缸上腔与副油缸下腔形 成通路， 形成液压平衡回路； 其特征是该液压平衡装置设置并联的两套平衡回路。
2、 根据权利要求 1所述的使用双液压平衡系统的两柱汽车举升机； 其特征是 上述两套平衡回路包括两套主油缸和副油缸； 其中第一套平衡回路的主油缸安装 在举升机主立柱上， 副油缸安装在副立柱上； 另一套平衡回路则与之相反， 主油 缸安装在举升机副立柱上， 副油缸安装在主立柱上。
3、根据权利要求 1或 2所述的使用双液压平衡系统的两柱汽车举升机； 其特 征是所述两套平衡回路的主油缸均设置液压防爆阀。
PCT/CN2010/000979 2009-12-31 2010-06-29 使用双液压平衡系统的两柱汽车举升机 WO2011079491A1 (zh)

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CN200920353382.0 2009-12-31
CN2009203533820U CN201598137U (zh) 2009-12-31 2009-12-31 使用双液压平衡系统的两柱汽车举升机

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CN106884822A (zh) * 2017-03-17 2017-06-23 合肥佳航机电设备有限公司 一种剪式举升机平台同步双缸液压系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544238A1 (de) * 1985-12-14 1987-06-19 Becker Neckarsulm Maschf Hydraulische hubeinrichtung, insbesondere saeulenhebebuehne fuer fahrzeuge
JPH0826684A (ja) * 1994-07-15 1996-01-30 Dainippon Printing Co Ltd 刷本束の持ち上げ装置
US6811000B1 (en) * 1998-10-15 2004-11-02 Snap-On Incorporated Volumetric operating system for vehicle lifts
WO2006122735A1 (en) * 2005-05-18 2006-11-23 O.Me.R. S.P.A. Lift device of column type
CN201442827U (zh) * 2009-05-27 2010-04-28 中意泰达(营口)汽车保修设备有限公司 一种超薄型液压举升机液压系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544238A1 (de) * 1985-12-14 1987-06-19 Becker Neckarsulm Maschf Hydraulische hubeinrichtung, insbesondere saeulenhebebuehne fuer fahrzeuge
JPH0826684A (ja) * 1994-07-15 1996-01-30 Dainippon Printing Co Ltd 刷本束の持ち上げ装置
US6811000B1 (en) * 1998-10-15 2004-11-02 Snap-On Incorporated Volumetric operating system for vehicle lifts
WO2006122735A1 (en) * 2005-05-18 2006-11-23 O.Me.R. S.P.A. Lift device of column type
CN201442827U (zh) * 2009-05-27 2010-04-28 中意泰达(营口)汽车保修设备有限公司 一种超薄型液压举升机液压系统

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