CN201105965Y - Hydraulic supporting leg - Google Patents
Hydraulic supporting leg Download PDFInfo
- Publication number
- CN201105965Y CN201105965Y CNU2007201141271U CN200720114127U CN201105965Y CN 201105965 Y CN201105965 Y CN 201105965Y CN U2007201141271 U CNU2007201141271 U CN U2007201141271U CN 200720114127 U CN200720114127 U CN 200720114127U CN 201105965 Y CN201105965 Y CN 201105965Y
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- CN
- China
- Prior art keywords
- supporting leg
- piston rod
- support leg
- car body
- actuating cylinder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic support leg, which is arranged on both sides of left and right of a carrier and stacker and comprises a hydraulic cylinder and a piston rod, etc. Both the upper end and the lower end of the hydraulic cylinder are fixedly connected with a fixed position of a vehicle body; the lower end of the piston rod is movably connected with the upper end of a connection rod and a driven aero wheel through rotation pin rolls; the lower end of the connection rod is rotatablely connected with the support leg through the pin rolls the support leg; the components of the support leg are rotatablely connected with fixed positions below the vehicle body through the pin rolls of the vehicle body; when the components of the support leg are stretched for operation, a universal wheel arranged at the farthest end of the support leg contacts the work ground of the carrier and stacker to form a point support of the carrier and stacker. Compared with the closest prior art, the horizontal component of oblique pressure from the connection rod is transferred to the vehicle body through the rotation pin roll and the driven aero wheel and set off, thus shielding the hydraulic cylinder and the piston rod against oblique pressure, improving the stress status of seal components in the hydraulic cylinder, prolonging the service life of the seal components and reducing failure rate of the hydraulic cylinder.
Description
Technical field
The utility model belongs to the hydraulic efficiency gear technical field, relates to the hydraulic support leg of a kind of hydraulic support device of handling machinery, particularly a kind of carrier-and-stacker.
Technical background
Chinese patent application 200610049503.3 discloses a kind of hydraulic support leg, its constructional feature is: hydraulic support leg is separately positioned on carrier-and-stacker, the particularly and arranged on left and right sides of the high carrier-and-stacker car body that hoists, hydraulic support leg comprises that a hydraulic actuating cylinder reaches and the supporting piston rod of hydraulic actuating cylinder, the hydraulic actuating cylinder upper end is provided with the car body bearing pin with among the activity connection vehicle body side, the lower end of piston rod is provided with rotary pin shaft and connects supporting leg with activity, the outside, supporting leg upper end connects flower wheel, and the supporting leg lower end is provided with the supporting leg bearing pin and connects under the vehicle body side with activity.The hydraulic support leg of this structure is separately positioned on the both sides of electronic carrier-and-stacker car body, hoist in the carrier-and-stacker loading, bear a heavy burden and strut supporting leg when thing is got in heap height or high-altitude, when carrying or lower goods, draws by carrier-and-stacker supporting leg in, no doubt can avoid carrier-and-stacker to tumble or goods accident such as fall, make carrier-and-stacker break through its left side to a certain extent, width between the right wheel leg must raise and restriction that thing job requirements eurythmy is got in the high-altitude with bearing a heavy burden, but, because described hydraulic actuating cylinder and supporting with it piston rod strut supporting leg at carrier-and-stacker and freight and hoist, bear a heavy burden and directly served as oblique support component when the thing operation is got in heap height or high-altitude, seal loading situation in the hydraulic actuating cylinder is abominable, causes the hydraulic actuating cylinder fault rate high.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, providing a kind of makes hydraulic actuating cylinder and supporting with it piston rod only be subjected to axle pressure and has avoided the hydraulic support leg of oblique loading situation, in the both sides of electronic carrier-and-stacker car body this hydraulic support leg is set, can improve the force-bearing situation of sealing member in the hydraulic actuating cylinder, reduce the hydraulic actuating cylinder fault rate.
For achieving the above object, solution of the present utility model is: a kind of hydraulic support leg, be arranged on the and arranged on left and right sides of the carrier-and-stacker of band car body and travelling wheel, described hydraulic support leg comprises hydraulic actuating cylinder and supporting with it piston rod, utilizes the sealing member sealing between the two; Described hydraulic actuating cylinder upper end position is fixed; An epicoele fuel feed hole and a cavity of resorption fuel feed hole are set on the described hydraulic actuating cylinder, and epicoele fuel feed hole and cavity of resorption fuel feed hole are connected the pressure oil pipe of a hydraulic efficiency pressure system respectively; The lower end of described piston rod is provided with a rotary pin shaft, piston rod is by the movable supporting leg assembly that connects of this rotary pin shaft, the supporting leg assembly rotates with the fixed position of car body bottom by the car body bearing pin and connects, when the supporting leg assembly struts work, the cardan wheel that is arranged at the supporting leg outermost end contacts with carrier-and-stacker work ground, it is characterized in that: described supporting leg assembly is made up of connecting rod and supporting leg, described small end rotates with a piston-rod lower end and a follower rollers by rotary pin shaft and connects, and described connecting rod lower end is rotated with supporting leg by the supporting leg bearing pin and connected.
Described hydraulic actuating cylinder upper end is fixed by screw and permanent seat, and permanent seat is welded on the middle part of vehicle body side vertical direction, and described hydraulic actuating cylinder lower end is fixed by an anchor ear and car body.
Described piston rod is installed in the described hydraulic actuating cylinder, its lower end is shaped on screw thread, connect a push rod fork that is shaped on respective threaded, can regulate the push rod fork and the piston rod ingear degree of depth by turning the push rod fork, this thread connection of piston rod and push rod fork is fastening by a nut.
Described rotary pin shaft passes described connecting rod, push rod fork and a follower rollers this three is rotated connection, rotate connection attached middle school in this group, follower rollers contacts with car body all the time, no matter is under the state that hydraulic support leg struts or draws in, and the push rod fork does not contact with car body with connecting rod.
Described connecting rod lower end is rotated with supporting leg by the supporting leg bearing pin and is connected, described supporting leg bearing pin is set to make described piston rod just described supporting leg to be strutted when maximum is stretched out in described hydraulic actuating cylinder to described cardan wheel and contacts with carrier-and-stacker work ground in the position on the described supporting leg, simultaneously, the setting of the position of described supporting leg bearing pin on described supporting leg is also satisfied piston rod and is made the angle α of described connecting rod and described supporting leg be slightly less than 180 requirements of spending when minimum is stretched out in described hydraulic actuating cylinder.
Compared with prior art, advantage of the present utility model is: when supporting leg opens to the cardan wheel kiss the earth and becomes the carrier-and-stacker fulcrum, the horizontal component of force of the oblique pressure that is transmitted by connecting rod is delivered on the car body by follower rollers, thereby make hydraulic actuating cylinder and piston rod avoid oblique loading, improve the force-bearing situation of sealing member in the hydraulic actuating cylinder, prolong seal durability, reduce the hydraulic actuating cylinder fault rate.
Description of drawings
Fig. 1 stretches out the utility model perspective view under the state for the piston rod maximum.
Fig. 2 stretches out the utility model planar structure scheme drawing under the state for the piston rod maximum.
Fig. 3 stretches out the utility model perspective view under the state for the piston rod minimum.
Fig. 4 stretches out the utility model planar structure scheme drawing under the state for the piston rod minimum.
In the accompanying drawings, the corresponding relation of parts and numbering thereof is as follows: the 1-car body; The 2-travelling wheel; The 3-permanent seat; The 4-hydraulic actuating cylinder; The 5-anchor ear; The 6-piston rod; 7-push rod fork; The 8-follower rollers; The 9-rotary pin shaft; The 10-connecting rod; 11-car body bearing pin; The 12-supporting leg; 13-supporting leg bearing pin; The 14-cardan wheel; The 15-screw; The 16-nut.
The specific embodiment
Fig. 1 to Fig. 4 has expressed an embodiment of the utility model hydraulic support leg.This mechanism symmetry is installed in the and arranged on left and right sides of the car body 1 of the carrier-and-stacker of being with car body 1 and travelling wheel 2, and carries out synchronous working.
The hydraulic support leg mechanism that is installed on car body 1 side channel-section steel comprises a hydraulic actuating cylinder 4 and a supporting with it piston rod 6, use the sealing member sealing between hydraulic actuating cylinder 4 and the piston rod 6, hydraulic actuating cylinder 4 is provided with an epicoele fuel feed hole and a cavity of resorption fuel feed hole, and epicoele fuel feed hole and cavity of resorption fuel feed hole are connected the pressure oil pipe of hydraulic efficiency pressure system respectively.Captive joint with the permanent seat 3 at car body 1 middle part with screw 15 in the upper end of hydraulic actuating cylinder 4, the lower end is fixing with car body 1 with an anchor ear 5.Parts such as aforementioned sealing member, epicoele fuel feed hole, cavity of resorption fuel feed hole and pressure oil pipe and connection mode thereof are the basic general knowledge in present technique field, and be not shown.
Piston rod 6 lower ends are shaped on screw thread, be shaped on the push rod fork 7 of respective threaded to one of lower link, can regulate the push rod fork 7 and the piston rod 6 ingear degree of depth by turning push rod fork 7, thereby adjust push rod to a certain extent and pitch distance between 7 bottom axis holes and piston rod 6 lower ends, when push rod pitch distance between 7 bottom axis holes and piston rod 6 lower ends adjust ready after, it is 7 fastening with piston rod 6 to use a nut 16 push rod can be pitched.The realization of this regulatory function, can avoid stretching out state and minimum in piston rod 6 maximums and stretching out the less-than-ideal situation in state lower support leg 12 positions and occur because of design and/or Mismachining tolerance cause, particularly avoid stretching out under the state in piston rod 6 maximums, the cardan wheel 14 that supporting leg 12 outermost end occur being arranged on contacts situation not enough or that excessively exert pressure and occurs with carrier-and-stacker work ground.So-called cardan wheel 14 contacts not enough with carrier-and-stacker work ground, be meant that cardan wheel 14 does not really contact as yet or only contacts with a line with carrier-and-stacker work ground, does not form effective contact surface, and hydraulic support leg unpromising overall stack buttress this moment car provides new fulcrum.So-called cardan wheel 14 is excessively exerted pressure with carrier-and-stacker work ground, be meant that the stroke that is opened because of supporting leg 12 is excessive, cause carrier-and-stacker travelling wheel 2 to be lifted away from work ground with car body 1, cardan wheel 14 has substituted the original part fulcrum of carrier-and-stacker with the ground-surface reality that contacts of carrier-and-stacker work.No matter be that cardan wheel 14 contacts not enough or excessively exerts pressure with carrier-and-stacker work ground, all be unfavorable for installing hydraulic support leg to improve the realization of carrier-and-stacker stability purpose.
Can see by Fig. 1 and Fig. 3, the push rod of car body 1 side hydraulic support leg mechanism pitches 7 bottoms and connecting rod 10 upper ends all are shaped on axis hole, in the prong of push rod fork 7, be provided with one and pitch 7 axis holes and the coaxial follower rollers 8 of connecting rod 10 axis holes with push rod, the axis hole that rotary pin shaft 9 passes push rod fork 7, connecting rod 10 and follower rollers 8 successively is rotatably connected in this three together.Follower rollers 8 external diameters equal the spacing in car body 1 and piston rod 6 axle center, and promptly flower wheel 8 outer rings keep contacting with car body 1 channel-section steel bottom, and simultaneously, piston rod 6, push rod are pitched 7 and all be designed to not contact with car body with connecting rod 10.Like this, stretch out under the state in piston rod 6 maximums, supporting leg 12 and connecting rod 10 are passed through in the face of the antagonistic force of cardan wheel 14 in the carrier-and-stacker place of working, though obliquely transmitted, but its horizontal component of force is passed on the car body 1 by the connection of rotary pin shaft 9 and follower rollers 8, acts on push rod fork 7 and is delivered to only remaining pressure vertically upward on the piston rod 6.Like this, for the hydraulic actuating cylinder 4 and piston rod 6 of oblique loading, the force-bearing situation of hydraulic actuating cylinder 4 inner seal liners obviously improves, and significantly improve service life.Be passed to horizontal component of force on the car body 1 for aforementioned connection, because hydraulic support leg of the present utility model is installed in the and arranged on left and right sides of car body 1 by symmetry, so this horizontal component of force reality is cancelled out each other by rotary pin shaft 9 and follower rollers 8.
Can see also that by Fig. 1 to Fig. 4 connecting rod 10 bottoms are provided with a supporting leg bearing pin 13 and link with supporting leg 12 middle parts, can relatively rotate between connecting rod 10 and the supporting leg 12.Supporting leg 12 outer ends are provided with a cardan wheel 14, and the inner is provided with a car body bearing pin 11 and connects with the rotation of car body 1 bottom, and supporting leg 12 can center on car body bearing pin 11 sideway swivel outside car body 1.
When the utility model hydraulic support leg is installed on the carrier-and-stacker, its working process is as follows:
When getting thing in hoist, bear a heavy burden when the carrier-and-stacker loading heap height or high-altitude, pressure oil enters hydraulic actuating cylinder 4 epicoeles by pressure oil pipe, fuel feed hole, piston rod 6 stretches out downwards, drivening rod 10, connecting rod 10 drives supporting leg 12 and overturns downwards, stretch out under the state in piston rod 6 maximums, supporting leg 12 turn to level or near the ultimate limit state of level, cardan wheel 14 contacts with ground, this moment, hydraulic efficiency pressure system stopped to hydraulic actuating cylinder 4 fuel feeding, but the hydraulic oil in the hydraulic actuating cylinder 4 keeps operation pressure, to realize the firm support to carrier-and-stacker under the aforementioned operating condition;
When the pallet of carrier-and-stacker dropped to safe altitude, the pressure oil of hydraulic efficiency pressure system entered the cavity of resorption of hydraulic actuating cylinder 4 by pressure oil pipe and fuel feed hole, and piston rod 6 upward movements drive supporting leg 12 simultaneously and upwards return back to rounding state, and make cardan wheel 14 built on stilts; Stretch out under the state in piston rod 6 minimums, supporting leg 12 collapses to ultimate limit state, angle α between connecting rod 10 and the supporting leg 12 is 170 degree, Da Xiao angle α had both helped strutting supporting leg 12 when pressure oil enters hydraulic actuating cylinder 4 epicoeles once more smoothly like this, can dwindle hydraulic support leg mechanism shared locus under rounding state again as far as possible.
This specific embodiment is compared with Chinese patent application 200610049503.3 disclosed hydraulic support leg technical schemes, advantage of the present utility model is: 1, when cardan wheel 14 contacts with work ground, utilize the counterforce counteraction of follower rollers 8 with horizontal direction, make 6 in hydraulic actuating cylinder 4 and piston rod be subjected to axial pressure, thereby greatly improve the force-bearing situation of sealing member in the hydraulic actuating cylinder 4, prolong seal durability, reduce hydraulic actuating cylinder 4 fault rates.2, by regulating the depth of engagement of push rod fork 7 and piston rod 6, itself and the ground-surface angle of work in the time of can regulating supporting leg 12 within the specific limits and strut to limit state, avoid because of the design and/or processing reason cause cardan wheel 14 contact with carrier-and-stacker work ground the deficiency or excessively exert pressure, the force-bearing situation and the travelling wheel 2 that guarantee cardan wheel 14 are basic identical, make the carrier-and-stacker that the utility model hydraulic support leg has been installed heap height or the high-altitude acquisition good stable when getting thing that hoists, bears a heavy burden in loading.
Claims (9)
1. hydraulic support leg is arranged on the and arranged on left and right sides of the carrier-and-stacker of band car body (1) and travelling wheel (2), comprises hydraulic actuating cylinder (4) and supporting with it piston rod (6), utilizes sealing member to seal between the two; Hydraulic actuating cylinder (4) upper end connects with fixed position, car body (1) middle part; Piston rod (6) is by the movable supporting leg assembly that connects of its lower end rotary pin shaft (9), the supporting leg assembly rotates with the fixed position of car body (1) bottom by car body bearing pin (11) and connects, when the supporting leg assembly struts work, the cardan wheel (14) that is arranged at supporting leg (12) outermost end contacts with carrier-and-stacker work ground, it is characterized in that: described hydraulic actuating cylinder (4) top and bottom all are fixedly connected with car body (1) fixed position; Described supporting leg assembly is made up of connecting rod (10) and supporting leg (12); Rotary pin shaft (9) passes connecting rod (10) upper end axis hole, piston rod (6) lower end axis hole and follower rollers (8) axis hole the three is rotated connection, and connecting rod (10) lower end is rotated with supporting leg (12) by supporting leg bearing pin (13) and connected.
2. hydraulic support leg as claimed in claim 1 is characterized in that: described follower rollers (8) external diameter equals the spacing in car body (1) and piston rod (6) axle center.
3. hydraulic support leg as claimed in claim 2 is characterized in that: described piston rod (6) is by a push rod fork of its lower end thread connection (7), and push rod fork (7) can be regulated with the depth of engagement of piston rod (6).
4. hydraulic support leg as claimed in claim 3 is characterized in that: described piston rod (6) is fastening by a nut (16) with the thread connection of push rod fork (7).
5. hydraulic support leg as claimed in claim 1 is characterized in that: described hydraulic actuating cylinder (4) upper end is fixing by screw (15) and permanent seat (3), and permanent seat (3) is welded on the middle part of car body (1) lateral vertical direction.
6. hydraulic support leg as claimed in claim 1 is characterized in that: described hydraulic actuating cylinder (4) lower end is fixing by an anchor ear (5) and car body (1).
7. hydraulic support leg as claimed in claim 3 is characterized in that: piston rod (6), push rod fork (7) do not contact with car body (1) with connecting rod (10).
8. hydraulic support leg as claimed in claim 2, it is characterized in that: described connecting rod (10) lower end connects by the rotation of supporting leg bearing pin (13) and supporting leg (12), contacts with ground when described piston rod (6) struts described supporting leg (12) when maximum is stretched out in described hydraulic actuating cylinder (4) just to described cardan wheel (14).
9. hydraulic support leg as claimed in claim 2, it is characterized in that: described connecting rod (10) lower end is rotated with supporting leg (12) by supporting leg bearing pin (13) and is connected, when described piston rod (6) when minimum is stretched out in described hydraulic actuating cylinder (4), the angle α of described connecting rod (10) and described supporting leg (12) is 170 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201141271U CN201105965Y (en) | 2007-08-30 | 2007-08-30 | Hydraulic supporting leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201141271U CN201105965Y (en) | 2007-08-30 | 2007-08-30 | Hydraulic supporting leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105965Y true CN201105965Y (en) | 2008-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201141271U Expired - Lifetime CN201105965Y (en) | 2007-08-30 | 2007-08-30 | Hydraulic supporting leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105965Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556883A (en) * | 2010-12-17 | 2012-07-11 | 葛洲坝集团机电建设有限公司 | Difunctional hydraulic jacking device |
| CN102815644A (en) * | 2012-09-10 | 2012-12-12 | 朱红蔚 | Extension-type straddle device of lorry-mounted cargo loading and unloading operation device |
| CN102815643A (en) * | 2012-09-10 | 2012-12-12 | 朱红蔚 | Lorry-mounted cargo loading and unloading operation device |
| CN103124686A (en) * | 2010-08-26 | 2013-05-29 | 克朗设备公司 | Outrigger assembly with quick change load wheel assembly |
| CN103407939A (en) * | 2013-08-16 | 2013-11-27 | 安徽合力股份有限公司 | Auxiliary support leg for side forklift gantry |
| CN104326404A (en) * | 2014-10-20 | 2015-02-04 | 苏州先锋物流装备科技有限公司 | Structure with self-balancing function |
| CN105752885A (en) * | 2016-05-06 | 2016-07-13 | 朱红蔚 | Transfer robot frame device with collapsible and bendable legs |
| CN105752884A (en) * | 2016-05-06 | 2016-07-13 | 朱红蔚 | On-vehicle handling robot with vehicle climbing function |
| CN110143546A (en) * | 2019-05-18 | 2019-08-20 | 广东博智林机器人有限公司 | Wall board conveying vehicle |
| CN110240090A (en) * | 2019-06-17 | 2019-09-17 | 南京灵雀智能制造有限公司 | A kind of fork truck preventing cargo tilt and Anti-inclining method |
| CN110734011A (en) * | 2019-11-27 | 2020-01-31 | 衡阳市利美电瓶车制造有限责任公司 | side turning prevention device of forklift |
-
2007
- 2007-08-30 CN CNU2007201141271U patent/CN201105965Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124686A (en) * | 2010-08-26 | 2013-05-29 | 克朗设备公司 | Outrigger assembly with quick change load wheel assembly |
| CN103124686B (en) * | 2010-08-26 | 2016-03-16 | 克朗设备公司 | Materials handling vehicle, for its overhanging support assembly and correlation technique |
| CN102556883A (en) * | 2010-12-17 | 2012-07-11 | 葛洲坝集团机电建设有限公司 | Difunctional hydraulic jacking device |
| CN102815643B (en) * | 2012-09-10 | 2016-01-20 | 朱红蔚 | Vehicle mounted type handling goods implement |
| CN102815643A (en) * | 2012-09-10 | 2012-12-12 | 朱红蔚 | Lorry-mounted cargo loading and unloading operation device |
| CN102815644A (en) * | 2012-09-10 | 2012-12-12 | 朱红蔚 | Extension-type straddle device of lorry-mounted cargo loading and unloading operation device |
| CN103407939A (en) * | 2013-08-16 | 2013-11-27 | 安徽合力股份有限公司 | Auxiliary support leg for side forklift gantry |
| CN104326404A (en) * | 2014-10-20 | 2015-02-04 | 苏州先锋物流装备科技有限公司 | Structure with self-balancing function |
| CN105752885A (en) * | 2016-05-06 | 2016-07-13 | 朱红蔚 | Transfer robot frame device with collapsible and bendable legs |
| CN105752884A (en) * | 2016-05-06 | 2016-07-13 | 朱红蔚 | On-vehicle handling robot with vehicle climbing function |
| CN110143546A (en) * | 2019-05-18 | 2019-08-20 | 广东博智林机器人有限公司 | Wall board conveying vehicle |
| CN110240090A (en) * | 2019-06-17 | 2019-09-17 | 南京灵雀智能制造有限公司 | A kind of fork truck preventing cargo tilt and Anti-inclining method |
| CN110734011A (en) * | 2019-11-27 | 2020-01-31 | 衡阳市利美电瓶车制造有限责任公司 | side turning prevention device of forklift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 313100 Changxing County, Huzhou, Taihu street, long State Road, No. 528, No. Patentee after: Connaught machinery Limited by Share Ltd Address before: 313100, No. 58, No. 1, Changxin Economic Development Zone, pheasant Town, Zhejiang, Changxing County Patentee before: Zhejiang Nuoli Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |
|
| CX01 | Expiry of patent term |