CN105179368A - Reversely arranged forklift tilting cylinder - Google Patents
Reversely arranged forklift tilting cylinder Download PDFInfo
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- CN105179368A CN105179368A CN201510693250.2A CN201510693250A CN105179368A CN 105179368 A CN105179368 A CN 105179368A CN 201510693250 A CN201510693250 A CN 201510693250A CN 105179368 A CN105179368 A CN 105179368A
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- piston rod
- hydraulic fluid
- fluid port
- cylinder
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Abstract
The invention relates to a reversely arranged forklift tilting cylinder. The reversely arranged forklift tilting cylinder comprises a cylinder body, a cylinder cover matched with the cylinder body, a base matched with the cylinder body, and a piston assembly arranged in the cylinder body, wherein the piston assembly comprises a piston, a piston rod which is connected with the piston and penetrates through the cylinder cover, a solid connector connected with the piston rod, and a lug connected with the solid connector, the piston rod is of a hollow structure, a hollow core tube is arranged inside the piston rod in the length direction of the piston rod, a first oil inlet and a second oil inlet are formed in the solid connector, the base is hinged to a portal, the lug is hinged to a vehicle body, the first oil inlet and the second oil inlet are close to the vehicle body end, and the position of the lug on the solid connector is adjustable. According to the technical scheme, wiring and fixing of a rubber tube are facilitated due to the arrangement mode of the cylinder, deformation of the rubber tube is small, and the service life of the rubber tube is prolonged.
Description
Technical field
The present invention relates to fork truck field, be specifically related to a kind of tilting oil cylinder of fork of reversed arrangement.
Background technique
At present, as shown in Figure 1, the arrangement of tilting oil cylinder of fork is connected with car body 2000 by the base of oil cylinder 5000, the earrings of oil cylinder 5000 tailpiece of the piston rod is connected with door frame 1000, form the arrangement that rodless cavity is rearmounted, rod chamber is preposition, because rodless cavity is arranged near car body, take Vehicular body front space comparatively large, maintenance is brought inconvenience; Meanwhile, the filler opening 3000 of oil cylinder and return opening 4000 are separately positioned on the two ends of cylinder body, and position is separated, and is unfavorable for assembling and the wiring of high-pressure rubber pipe, fix to the pipeline after wiring the inconvenience also caused to a certain degree.
Summary of the invention
The object of the present invention is to provide a kind of tilting oil cylinder of fork of reversed arrangement, cylinder pedestal is connected with door frame by this dump ram, the earrings of tailpiece of the piston rod is connected with car body, oil cylinder taking up room to car body is reduced with this, also help the fit wires of sebific duct simultaneously and fix, and door frame forward and backward incline time, the distortion of sebific duct is little.
For achieving the above object, present invention employs following technological scheme: comprise cylinder barrel, the cylinder cap matched with cylinder barrel and base, be arranged on the piston assembly in cylinder barrel, described piston assembly comprises piston, be connected with piston and run through the piston rod that cylinder cap arranges, the solid joint be connected with piston rod and the earrings be connected with solid joint, described piston rod is hollow-core construction, the hollow core pipe arranged along piston rod length direction is provided with in piston rod, described solid joint is provided with the first filler opening, second filler opening and the first oil duct be connected with the first filler opening and the second filler opening respectively and the second oil duct, first filler opening is communicated with hollow core pipe by the first oil duct, second filler opening is communicated with piston rod cavity by the second oil duct, described piston rod is provided with the hydraulic fluid port being communicated with piston rod cavity and inner cavity of cylinder, described base and door frame are hinged and connected, described earrings and car body are hinged and connected, the first described hydraulic fluid port and the second hydraulic fluid port are arranged near car body end, the position of described earrings on solid joint is adjustable.
Be screw-thread fit between described solid joint and earrings, the position that solid joint matches with earrings is provided with thread section, this thread section is also provided with the adjusting nut matched with earrings.
The end face that described cylinder cap contacts with piston rod is inwardly provided with chamfering.
The welding edges that described hollow core pipe is positioned at piston side has dividing plate, and the external diameter of dividing plate welds with the inwall of piston rod.
As shown from the above technical solution, the present invention, by oppositely being arranged by oil cylinder, is connected with door frame by cylinder pedestal, is connected by the earrings of tailpiece of the piston rod with car body, reduce oil cylinder taking up room to car body with this; By by the first hydraulic fluid port and the second hydraulic fluid port centralized arrangement in the position near car body articulating point, be conducive to the wiring of sebific duct and fixing, simultaneously in the forward and backward process of inclining of door frame, the distortion of sebific duct is little, is conducive to the working life of improving sebific duct.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technique of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of oil cylinder of the present invention;
Fig. 4 is the structural representation of inventive piston assembly;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the structural representation of the solid joint of the present invention;
Fig. 7 is the structural representation of the present invention when working;
Fig. 8 is the E portion enlarged view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As Fig. 2, Fig. 3, Fig. 4, the tilting oil cylinder of fork of a kind of reversed arrangement shown in Fig. 5, comprise cylinder barrel 1, the cylinder cap 2 matched with cylinder barrel 1 and base 3, be arranged on the piston assembly in cylinder barrel 1, piston assembly comprises piston 4, be connected with piston 4 and run through the piston rod 5 that cylinder cap 2 arranges, the solid joint 6 be connected with piston rod 5 and the earrings 7 be connected with solid joint 6, piston rod 5 is hollow-core construction, the hollow core pipe 8 arranged along piston rod 5 length direction is provided with in piston rod 5, solid joint 6 is provided with the first hydraulic fluid port 9, second hydraulic fluid port 10 and the first oil duct 11 and the second oil duct 12 be connected with the first hydraulic fluid port 9 and the second hydraulic fluid port 10 respectively, first hydraulic fluid port 9 is communicated with hollow core pipe 8 by the first oil duct 11, second hydraulic fluid port 10 is by the second oil duct 12 and piston rod 5 inner space, piston rod 5 is provided with the hydraulic fluid port 13 being communicated with piston rod 5 inner chamber and cylinder barrel 1 inner chamber, base 3 and door frame 100 are hinged and connected, earrings 7 and car body 200 are hinged and connected, first hydraulic fluid port 9 and the second hydraulic fluid port 10 are arranged near car body end, the position of earrings 7 on solid joint 6 is adjustable.Whole oil cylinder is relative to the mode adopting reversed arrangement traditional oil cylinder, be connected with door frame 100 by the earrings on cylinder pedestal 3, the earrings 7 of tailpiece of the piston rod is connected with car body 200, namely adopt preposition for the rodless cavity of oil cylinder, that rod chamber is rearmounted arrangement, the space making oil cylinder take car body reduces, and facilitates maintenance and the maintenance in later stage.While tailpiece of the piston rod is rearmounted, made the design attitude of the first hydraulic fluid port 9 on solid joint 6 and the second hydraulic fluid port 10 near the articulating point of car body 200 with tailpiece of the piston rod earrings 7, like this door frame lean forward or hypsokinesis process in, relative to traditional oil cylinder arrangement, it is shorter that its hydraulic fluid port swings arc length, and then the sebific duct distortion caused is little, be conducive to the working life of improving sebific duct, and the neat appearance that connects up.
The position of earrings 7 on solid joint 6 is adjustable, and specifically, be namely screw-thread fit between solid joint 6 and earrings 7, the position that solid joint 6 matches with earrings 7 is provided with thread section, this thread section is also provided with the adjusting nut 16 matched with earrings.Be threaded connection between earrings 7 and solid joint 6 in other words, and realize locking by the position of adjusting nut 16 pairs of earrings 7, simultaneously, the fine setting of oil cylinder stroke can also be realized by carrying out the position of adjusting nut 16 adjusting, namely by adjustment earrings 7 on thread section screw-in amount number can realize the fine setting of whole oil cylinder stroke.In general, fine setting scope at 3mm ~ 7mm, by the fine setting of stroke ensure oil cylinder door frame lean forward or hypsokinesis time synchronization job.
Further, as shown in Figure 8, the end face that cylinder cap 2 contacts with piston rod 5 is inwardly provided with chamfering.The position that the end face that namely cylinder cap 2 is positioned at cylinder barrel 1 matches with piston rod 5 is provided with chamfering D, to facilitate the flowing of hydraulic oil between cavity B and cavity C.
Further, the welding edges that hollow core pipe 8 is positioned at piston 4 side has dividing plate 14, and the external diameter of dividing plate 14 welds with the inwall of piston rod 5.As shown in Figure 6, the end that solid joint 6 is connected with piston rod 5 is provided with the concave station 15 welding and locate that to match with hollow core pipe 8.Namely one end of hollow core pipe 8 is welded with the inwall of dividing plate 14, and the outer wall of dividing plate 14 welds with the inwall of piston rod 5; The other end of hollow core pipe 8 stretches to location, concave station 15 place, and the outer wall of hollow core pipe 8 and concave station 15 are welded and fixed, and the two ends of hollow like this core pipe 8 all adopt the mode be welded and fixed, and improve the stability of hollow core pipe 8 in piston rod 5.
Working principle of the present invention is as follows:
The articulating point of base and door frame and the line between earrings and the articulating point of car body are the mounting center distance of oil cylinder, and the first hydraulic fluid port 9 and the second hydraulic fluid port 10 play the effect of oil-feed, oil return or oil return, oil-feed respectively, i.e. the first hydraulic fluid port oil-feed, then the second hydraulic fluid port oil return; Second hydraulic fluid port oil-feed, then the first hydraulic fluid port oil-feed.As shown in Figure 7, cavity A is formed between dividing plate, piston and base, cavity B is formed between inner wall of cylinder and piston rod outer wall, cavity C is formed between dividing plate, piston rod inwall and hollow core tube wall, first hydraulic fluid port is communicated with cavity A through hollow core pipe by the first oil duct, second hydraulic fluid port is communicated with cavity C by the second oil duct, is communicated with between cavity C with cavity B by hydraulic fluid port 13.
Under door frame is in plumbness and oil cylinder is in the condition being full of hydraulic oil:
Action one: when high pressure liquid force feed through the first sebific duct 300 from the first oil port oil-feed time, high-pressure and hydraulic fluid body sequence of flow is: the first sebific duct → the first hydraulic fluid port → the first oil duct → hollow core tube cavity → cavity A; When the hydraulic fluid pressure of the hydraulic fluid pressure in cavity A higher than cavity B, piston is moved to the left, piston rod stretches out, hydraulic oil in cavity B is compressed and is entered cavity C via hydraulic fluid port, finally flow to hydraulic system through the second oil duct, the second hydraulic fluid port, the second sebific duct 400 successively, because the movement of piston makes the mounting center of earrings and base apart from increasing in this process, thus make door frame (car body direction of travel) swing forward, and then realize the operation of leaning forward of door frame.
Action two: after execution one, high pressure liquid force feed via the second sebific duct 400 from the second oil port oil-feed time, the sequence of flow of high pressure liquid force feed is: the second sebific duct → the second hydraulic fluid port → the second oil duct → cavity C → hydraulic fluid port → cavity B; When the hydraulic fluid pressure of the hydraulic fluid pressure in cavity B higher than cavity A, piston moves right, piston rod bounces back, hydraulic oil in cavity A is more successively via hollow core tube cavity, the first oil duct, the first hydraulic fluid port, and flow to hydraulic system through the first sebific duct, because the movement of piston makes the mounting center of earrings and base apart from reducing in this process, thus door frame is swung backward, and then realize the hypsokinesis operation of door frame.
In the process of execution one and action two, first sebific duct and the second sebific duct with earrings and car body hinged pivot and deform, because the first hydraulic fluid port and the second hydraulic fluid port are arranged near the hinged center of earrings and car body, so complete with crude oil cylinder with under equal angular swing at door frame, the distortion of the first sebific duct and the second sebific duct is little; The centre distance of the first hydraulic fluid port and the second hydraulic fluid port is less simultaneously, is conducive to the wiring of the first sebific duct and the second sebific duct and the fixing of circuit.
Beneficial effect of the present invention is: the mode 1) dump ram being adopted reversed arrangement, and namely base is connected with door frame, is connected by the earrings of tailpiece of the piston rod with car body, reduces the space hold amount of oil cylinder to car body position, facilitates maintenance and the maintenance in later stage; 2) the first hydraulic fluid port and the second hydraulic fluid port centralized arrangement, is conducive to the fit wires of sebific duct and the fixing of sebific duct; 3) the first hydraulic fluid port and the second hydraulic fluid port are arranged near the hinged center of car body, make door frame lean forward or hypsokinesis process in, first hydraulic fluid port and the second hydraulic fluid port relative to original oil cylinder layout its to swing arc length shorter, and then the distortion of the first sebific duct caused and the second sebific duct is little, be conducive to the working life of improving sebific duct, and the wiring neat appearance of sebific duct.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (4)
1. the tilting oil cylinder of fork of a reversed arrangement, comprise cylinder barrel (1), the cylinder cap (2) matched with cylinder barrel (1) and base (3), be arranged on the piston assembly in cylinder barrel (1), described piston assembly comprises piston (4), be connected with piston (4) and run through the piston rod (5) that cylinder cap (2) arranges, the solid joint (6) be connected with piston rod (5) and the earrings (7) be connected with solid joint (6), described piston rod (5) is hollow-core construction, the hollow core pipe (8) of arranging along piston rod (5) length direction is provided with in piston rod (5), described solid joint (6) is provided with the first hydraulic fluid port (9), second hydraulic fluid port (10) and the first oil duct (11) be connected with the first hydraulic fluid port (9) and the second hydraulic fluid port (10) respectively and the second oil duct (12), first hydraulic fluid port (9) is communicated with hollow core pipe (8) by the first oil duct (11), second hydraulic fluid port (10) is by the second oil duct (12) and piston rod (5) inner space, described piston rod (5) is provided with the hydraulic fluid port (13) being communicated with piston rod (5) inner chamber and cylinder barrel (1) inner chamber, it is characterized in that: described base (3) and door frame (100) are hinged and connected, described earrings (7) and car body (200) are hinged and connected, described the first hydraulic fluid port (9) is arranged near car body end with the second hydraulic fluid port (10), the described position of earrings (7) on solid joint (6) is adjustable.
2. the tilting oil cylinder of fork of reversed arrangement according to claim 1, it is characterized in that: be screw-thread fit between described solid joint (6) and earrings (7), the position that solid joint (6) matches with earrings (7) is provided with thread section, this thread section is also provided with the adjusting nut (16) matched with earrings (7).
3. the tilting oil cylinder of fork of reversed arrangement according to claim 1, is characterized in that: the end face that described cylinder cap (2) contacts with piston rod (5) is inwardly provided with chamfering.
4. the tilting oil cylinder of fork of reversed arrangement according to claim 1, is characterized in that: the welding edges that described hollow core pipe (8) is positioned at piston (4) side has dividing plate (14), and the external diameter of dividing plate (14) welds with the inwall of piston rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510693250.2A CN105179368A (en) | 2015-10-21 | 2015-10-21 | Reversely arranged forklift tilting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510693250.2A CN105179368A (en) | 2015-10-21 | 2015-10-21 | Reversely arranged forklift tilting cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179368A true CN105179368A (en) | 2015-12-23 |
Family
ID=54901697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510693250.2A Pending CN105179368A (en) | 2015-10-21 | 2015-10-21 | Reversely arranged forklift tilting cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179368A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201851576U (en) * | 2010-11-20 | 2011-06-01 | 柳州东方工程橡胶制品有限公司 | Viscous damper |
| CN202924687U (en) * | 2012-10-24 | 2013-05-08 | 山河智能装备股份有限公司 | Inclined oil cylinder installation structure of forklift lifting system |
| CN202926746U (en) * | 2012-10-24 | 2013-05-08 | 山河智能装备股份有限公司 | Oblique oil cylinder used for forklift |
| CN203516277U (en) * | 2013-10-15 | 2014-04-02 | 徐州科源液压股份有限公司 | Multi-stage upside-down oil cylinder with two hinged shafts |
| CN203604329U (en) * | 2013-12-06 | 2014-05-21 | 中联重科股份有限公司 | Engineering mechanical equipment and power pin oil cylinder thereof |
| CN203948376U (en) * | 2014-07-15 | 2014-11-19 | 宁波通用塑料机械制造有限公司 | A kind of advance and retreat cylinder structure |
| DE102013107853A1 (en) * | 2013-07-23 | 2015-01-29 | Linde Material Handling Gmbh | Hydraulic cylinder, in particular lifting cylinder of a lift truck mast, with a cylinder tube, a piston rod and a mechanical Einfahrbegrenzung |
| CN205064438U (en) * | 2015-10-21 | 2016-03-02 | 安徽合力股份有限公司 | Fork truck tilting cylinder who backward arranges |
-
2015
- 2015-10-21 CN CN201510693250.2A patent/CN105179368A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201851576U (en) * | 2010-11-20 | 2011-06-01 | 柳州东方工程橡胶制品有限公司 | Viscous damper |
| CN202924687U (en) * | 2012-10-24 | 2013-05-08 | 山河智能装备股份有限公司 | Inclined oil cylinder installation structure of forklift lifting system |
| CN202926746U (en) * | 2012-10-24 | 2013-05-08 | 山河智能装备股份有限公司 | Oblique oil cylinder used for forklift |
| DE102013107853A1 (en) * | 2013-07-23 | 2015-01-29 | Linde Material Handling Gmbh | Hydraulic cylinder, in particular lifting cylinder of a lift truck mast, with a cylinder tube, a piston rod and a mechanical Einfahrbegrenzung |
| CN203516277U (en) * | 2013-10-15 | 2014-04-02 | 徐州科源液压股份有限公司 | Multi-stage upside-down oil cylinder with two hinged shafts |
| CN203604329U (en) * | 2013-12-06 | 2014-05-21 | 中联重科股份有限公司 | Engineering mechanical equipment and power pin oil cylinder thereof |
| CN203948376U (en) * | 2014-07-15 | 2014-11-19 | 宁波通用塑料机械制造有限公司 | A kind of advance and retreat cylinder structure |
| CN205064438U (en) * | 2015-10-21 | 2016-03-02 | 安徽合力股份有限公司 | Fork truck tilting cylinder who backward arranges |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |
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| WD01 | Invention patent application deemed withdrawn after publication |