CN204369479U - A kind of rubber tired crane jacking cylinder falling proof device - Google Patents
A kind of rubber tired crane jacking cylinder falling proof device Download PDFInfo
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- CN204369479U CN204369479U CN201420732329.2U CN201420732329U CN204369479U CN 204369479 U CN204369479 U CN 204369479U CN 201420732329 U CN201420732329 U CN 201420732329U CN 204369479 U CN204369479 U CN 204369479U
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Abstract
The utility model relates to a kind of rubber tired crane jacking cylinder falling proof device, it is characterized in that comprising two stage clip sleeves, receiver and anti-fall baffle ring, described receiver is the annual seat being sleeved on jacking cylinder cylinder base port, two stage clip sleeves are arranged on annual seat two side bottom towards cylinder body center respectively by a support sleeve is removable with nozzle along described cylinder body radial direction, stage clip sleeve is by cylindrical shell, stage clip, compressed can be formed along the steel ball of nozzle telescopic moving and pressure regulating nut by stage clip, anti-fall baffle ring is the torus arranged around piston rod external part end winding support, outer surface had the evagination arranged continuously and to have a down dip ramp torus ring week, middle part vertical plane and indent have a down dip lower inclined plane, initial condition in piston rod retract cylinder, steel ball is positioned on the downside of the lower inclined plane of anti-fall baffle ring, the horizontal overlap distance that steel ball leans out in the middle part of end and anti-fall baffle ring between vertical plane is 5-20mm, at the mode of operation that piston rod stretches out, steel ball is positioned at above anti-fall baffle ring.
Description
Technical field
The utility model relates to a kind of rubber tired crane matching component, particularly relates to a kind of rubber tired crane jacking cylinder falling proof device.
Background technology
Rubber tired crane is the elevator machinery by taking turns tyre walking.Due to deadweight and hoisting capacity large, therefore the tire serious wear when turning, at present, the steering hardware of wheel-mounted crane is all provided with hydraulic climbing mechanism, this lifting body adopts a hydraulic ram, its piston rod end connects a base for supporting by ball rod Connection Block, when normally walking, tire lands, hoisting crane roller tyre walking, now, jacking cylinder is in initial condition, i.e. piston rod retraction oil cylinder and base for supporting is liftoff unsettled, when hoisting crane is turned, jacking cylinder enters mode of operation, under hydraulic efficiency pressure system effect, make that piston rod is descending to be stretched out, and base for supporting lands, under lift-up pressure effect, along with piston rod continues to stretch out, cylinder block rises, steering hardware drives tire to leave ground, hoisting crane body is supported by base for supporting, realize tire unsettled, tire suspending rotary under steering hardware drive system does use, complete cornering operation, then, reduced pressure by hydraulic efficiency pressure system, in the up retraction cylinder block of piston rod, now, base for supporting rises and tire lands, base for supporting continues rising and leaves ground, be converted to again Tire support hoisting crane body, get back to initial condition.Thus, the object preventing wear on tyres is reached.
But the defect of existing jacking cylinder is because in equipment use, jacking cylinder is let out in producing, pressure changes and causes the piston rod of unsettled set naturally to drop due to gravity, cause breakdown of equipment, therefore, how preventing from causing piston rod to drop because letting out in oil cylinder, becoming industry concerned issue.
Utility model content
Main purpose of the present utility model is for the problems referred to above, provides a kind of rubber tired crane jacking cylinder falling proof device, by arranging this device on existing jacking cylinder, prevents from, because letting out the piston rod tenesmus caused in oil cylinder, ensureing hoisting crane normal operation.
The utility model solves the technical scheme that its technical matters adopts:
A kind of rubber tired crane jacking cylinder falling proof device, described jacking cylinder comprises cylinder body, piston rod, piston rod external part connects the base for supporting of described hoisting crane by ball rod Connection Block, described cylinder body is connected the tire steering hardware of hoisting crane, it is characterized in that described falling proof device comprises two stage clip sleeves, receiver and anti-fall baffle ring, described receiver is the annual seat being sleeved on described jacking cylinder cylinder base port, described two stage clip sleeves are arranged on annual seat two side bottom towards cylinder body center respectively by a support sleeve is removable with nozzle along described cylinder body radial direction, stage clip sleeve is by cylindrical shell, the stage clip of device in cylinder, compressed can be formed along the steel ball of nozzle telescopic moving and pressure regulating nut by stage clip, described anti-fall baffle ring is the torus arranged around piston rod external part end winding support, outer surface had have a down dip ramp, middle part vertical plane and indent of the evagination arranged continuously and to have a down dip lower inclined plane described torus ring week, in piston rod retract cylinder and the liftoff unsettled initial condition of base for supporting, described steel ball is positioned at below the lower inclined plane of anti-fall baffle ring, and the horizontal overlap distance that steel ball leans out in the middle part of the top of cambered surface and anti-fall baffle ring between vertical plane is 5-20mm, stretch out cylinder body and the mode of operation that lands of base for supporting at piston rod, steel ball is positioned at above anti-fall baffle ring.
With outside thread outside the cylindrical shell of described stage clip sleeve, described support sleeve is the sleeve with the negative thread mated with cylindrical shell outside thread, and stage clip sleeve is threaded with it through described support sleeve and is locked on support sleeve through a jam nut at desired location.
The anti-fall strong point of described steel ball and the vertical distance of anti-fall baffle ring lower inclined plane are 0-10mm.
Described ramp is identical with the angle of described middle part vertical plane with lower inclined plane, is 30
°-60
°.
The cornerite seat of described annual seat to be vertical section be L shape, is connected and composed by two semicircle ring seats, and is bolted on cylinder body.
Described two semicircle ring seats are connected by dovetail form block tongue, notch.
Described anti-fall baffle ring is made up of involutory being fixedly connected with of two semicircular baffle ring.
The beneficial effects of the utility model are: on the architecture basics of existing jacking cylinder, need not change structure, directly set up receiver at cylinder base port, bottom receiver both sides, stage clip sleeve is installed respectively, in piston rod external part end, anti-fall baffle ring is set, by regulating level, the vertically distance between stage clip sleeve and anti-fall baffle ring, final realization effectively prevents from, because letting out the piston rod tenesmus caused in oil cylinder, ensureing that operation is normally carried out.The utility model is simple and reliable for structure, stability is high, especially adopt split combination structure, and interchangeability is good, the facility that substantially increases installation and maintenance.
Accompanying drawing explanation
Fig. 1 is application structure schematic diagram under the utility model and the initial condition in jacking cylinder thereof;
Fig. 2 is application structure schematic diagram under the utility model and the mode of operation in jacking cylinder thereof;
Fig. 3 is the I enlarged drawing in Fig. 1;
Fig. 4 is the structural representation of the receiver in Fig. 1;
Fig. 5 is the structural representation of the anti-fall baffle ring in Fig. 1;
Fig. 6 is the F enlarged drawing (removal hatching) in Fig. 5;
Fig. 7 is the initial condition structural representation applying rubber tired crane of the present utility model;
Fig. 8 is the operating conditions structural representation applying rubber tired crane of the present utility model.
In figure: 1 jacking cylinder, 11 cylinder bodies, 12 piston rods, 2 receivers, 21 dovetail form block tongues, 22 dovetail form draw-in grooves, 3 anti-fall baffle rings, 31 ramps, vertical plane in the middle part of in the of 32,33 lower inclined planes, 4 stage clip sleeves, 41 support sleeves, 42 jam nuts, 43 pressure regulating nuts, 44 stage clips, 45 cylindrical shells, 46 steel balls, 5 ball rod Connection Blocks, 51 ball rods, 6 base for supporting, 7 anti-indentation back-up rings, 8 tire steering hardwarees, 9 hoisting cranes, 10 bolts, 13 tires.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Detailed description of the invention
Fig. 1-Fig. 8 illustrates a kind of rubber tired crane jacking cylinder falling proof device and the application in jacking cylinder and rubber tired crane thereof, described jacking cylinder 1 comprises cylinder body 11, piston rod 12, and piston rod external part connects the base for supporting 6 of described hoisting crane 9 by ball rod Connection Block 5.Above-mentioned cylinder body 11 is connected the tire steering hardware 8 of hoisting crane 9, of the present utility modelly be characterised in that above-mentioned falling proof device comprises two stage clip sleeves 4, receiver 2 and anti-fall baffle ring 3, described receiver 2 is for being sleeved on the annual seat of described jacking cylinder cylinder body 11 bottom port, in actual fabrication, the cornerite seat of this annual seat to be vertical section be L shape, connected and composed by two semicircle ring seats, two semicircle ring seats are connected by dovetail form block tongue 21, dovetail form draw-in groove 22 and are fixed on cylinder body 11 by bolt 10.
Above-mentioned two stage clip sleeves 4 are arranged on annual seat two side bottom towards cylinder body center respectively by a support sleeve 41 is removable with nozzle along cylinder body 11 radial direction, stage clip sleeve is by cylindrical shell 45, the stage clip 44 of device in cylinder, compressed can be formed along the steel ball 46 of nozzle telescopic moving and pressure regulating nut 43 by stage clip, in actual fabrication, fixing and the depth of cylindrical shell 45 is moved to regulate and is completed by following structure: with outside thread outside the cylindrical shell 45 of above-mentioned stage clip sleeve 4, described support sleeve 41 is the sleeve with the negative thread mated with cylindrical shell outside thread, stage clip sleeve 4 is threaded with it through support sleeve 41 and is locked on support sleeve 41 through a jam nut 42 at desired location.During installation, stage clip sleeve 4 is screwed in support sleeve 41 by cylindrical shell 45, and its steel ball end leans out cylindrical shell 45, according to the depth size determination latched position of setting, be then against on support sleeve by jam nut 42 and stage clip sleeve 4 is locked.Regulating the dilatability of stage clip 44 by turning pressure regulating nut 43, obtaining required pressure.
Above-mentioned anti-fall baffle ring 3 is the torus arranged around piston rod external part end winding support, outer surface had have a down dip ramp 31, middle part vertical plane 32 and indent of the evagination arranged continuously and to have a down dip lower inclined plane 33 this torus ring week, above-mentioned ramp 31 is identical with the angle of described middle part vertical plane 32 with lower inclined plane 33, see angle β in figure, be 30 °-60 °.Above-mentioned anti-fall baffle ring 3 is made up of involutory being fixedly connected with of two semicircular baffle ring.Here, the steel ball 46 in stage clip sleeve forms inclined-plane slide mechanism with the upper lower inclined plane of anti-fall baffle ring under the effect of stage clip 44, and this inclined-plane slide mechanism is supplied to 12 1, the piston rod axial force contrary with piston rod movement direction according to its lift.In order to the base for supporting free falling preventing piston rod and connect on the piston rod, the size of this axial force must be greater than the deadweight of all movable parties, comprises piston rod, ball rod Connection Block, base for supporting.Rise freely for really making base for supporting to be driven to decline at hydraulic action lower piston rod, this axial force also must much smaller than the jacking force of piston.Be applied in rubber tired crane jacking cylinder, the setting value of this axial force should meet: 580kg >=axial force > 450kg.
As shown in Figure 3, in piston rod 12 retract cylinder and the liftoff unsettled initial condition of base for supporting 6, steel ball 46 is positioned at below the lower inclined plane 33 of anti-fall baffle ring, and the horizontal overlap distance d leant out in the middle part of cambered surface top and anti-fall baffle ring between vertical plane 32 of steel ball is 5-20mm; The anti-fall strong point A of steel ball and the vertical distance of anti-fall baffle ring lower inclined plane are 0-10mm.As shown in Figure 2, stretch out cylinder body and the mode of operation that lands of base for supporting at piston rod, steel ball 46 is positioned at above anti-fall baffle ring 3.
As can be seen from Figure 3, anti-indentation back-up ring 7 is set with in the piston rod end of jacking cylinder, this anti-indentation back-up ring and piston rod end connecting portion forming station terrace, the ring week shoulder face of mating with this step surface is provided with inside anti-fall baffle ring 3, anti-fall baffle ring 3 is involutory by two semicircle baffle rings, and the ring week shoulder face inside it is installed on the step surface of anti-indentation back-up ring, and be fixed with one by bolt, realize fixedlying positioning.
In the present embodiment, above-mentioned receiver, anti-fall baffle ring, stage clip sleeve, support sleeve, jam nut and pressure regulating nut all have employed steel, and have carried out cold galvanizing anti-corrosion treatment.Above-mentioned stage clip have employed the brute spring of φ 7X38mm.
Working process of the present utility model and principle:
Anti-fall baffle ring 3 is arranged on piston rod 12 projecting end, and with piston rod up-and-down movement, stage clip sleeve 4 is arranged on the both sides of cylinder body of hydraulic oil cylinder 11 bottom port, is static connecting element.The jacking cylinder of rubber tired crane has two kinds of mode of operations, as shown in Figure 1, Figure 7 shows, when normally walking, tire 13 lands, hoisting crane roller tyre walking, now, jacking cylinder 1 is in initial condition, i.e. piston rod retraction oil cylinder and base for supporting 6 is liftoff unsettled, steel ball 46 is positioned at below lower inclined plane 33, as shown in Figure 3, the horizontal overlap distance d leant out in the middle part of cambered surface top and anti-fall baffle ring between vertical plane 32 of steel ball is 5-20mm, and the anti-fall strong point A of steel ball 46 and the vertical distance of anti-fall baffle ring lower inclined plane are 0-10mm.In this example, this distance is 0.During wheel tyre walking, once fall owing to letting out generation piston rod in oil cylinder, anti-fall baffle ring effectively can stop piston rod tenesmus, ensures that crane job normally runs.
When hoisting crane is turned, jacking cylinder enters mode of operation, as Fig. 2, shown in Fig. 8, under hydraulic efficiency pressure system effect, make that piston rod 12 is descending to be stretched out and base for supporting 6 lands, under lift-up pressure effect, along with piston rod continues to stretch out, cylinder block 11 rises, steering hardware 8 drives tire 13 to leave ground, hoisting crane body is supported by base for supporting 6, realize tire unsettled, now, tire cornering operation is completed by the drive system of steering hardware, then, reduced pressure by hydraulic efficiency pressure system, piston rod is up, bounce back in cylinder block, now, base for supporting rises and tire lands, continue up with piston rod, base for supporting continues up, until anti-fall baffle ring arrives cylinder body port, piston rod stops rising, be converted to again Tire support hoisting crane, be restored to piston rod retraction oil cylinder and the liftoff unsettled initial condition of base for supporting.Thus, the object preventing wear on tyres is reached.
Adopt the jacking cylinder falling proof device that the utility model provides, on the architecture basics of existing jacking cylinder, original design need not be changed, directly need only set up receiver at cylinder base port, bottom receiver both sides, stage clip sleeve is installed respectively, anti-fall baffle ring is set in piston rod external part end, by regulating level, the vertically distance between the steel ball of stage clip sleeve and anti-fall baffle ring, final realization effectively prevents from, because letting out the piston rod tenesmus caused in oil cylinder, ensureing that hoisting operation normally carries out.The utility model is simple and reliable for structure, stability is high, structure this as split-type design, as receiver, stage clip sleeve, anti-fall baffle ring are independent parts, interchangeability is good, the facility that substantially increases installation and maintenance.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to structure of the present utility model.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a rubber tired crane jacking cylinder falling proof device, described jacking cylinder comprises cylinder body, piston rod, piston rod external part connects the base for supporting of described hoisting crane by ball rod Connection Block, described cylinder body is connected the tire steering hardware of hoisting crane, it is characterized in that described falling proof device comprises two stage clip sleeves, receiver and anti-fall baffle ring, described receiver is the annual seat being sleeved on described jacking cylinder cylinder base port, described two stage clip sleeves are arranged on annual seat two side bottom towards cylinder body center respectively by a support sleeve is removable with nozzle along described cylinder body radial direction, stage clip sleeve is by cylindrical shell, the stage clip of device in cylinder, compressed can be formed along the steel ball of nozzle telescopic moving and pressure regulating nut by stage clip, described anti-fall baffle ring is the torus arranged around piston rod external part end winding support, outer surface had have a down dip ramp, middle part vertical plane and indent of the evagination arranged continuously and to have a down dip lower inclined plane described torus ring week, in piston rod retract cylinder and the liftoff unsettled initial condition of base for supporting, described steel ball is positioned at below the lower inclined plane of anti-fall baffle ring, and the horizontal overlap distance that steel ball leans out in the middle part of the top of cambered surface and anti-fall baffle ring between vertical plane is 5-20mm, stretch out cylinder body and the mode of operation that lands of base for supporting at piston rod, steel ball is positioned at above anti-fall baffle ring.
2. a kind of rubber tired crane jacking cylinder falling proof device according to claim 1, with outside thread outside the cylindrical shell that it is characterized in that described stage clip sleeve, described support sleeve is the sleeve with the negative thread mated with cylindrical shell outside thread, and stage clip sleeve is threaded with it through described support sleeve and is locked on support sleeve through a jam nut at desired location.
3. a kind of rubber tired crane jacking cylinder falling proof device according to claim 1 and 2, is characterized in that the anti-fall strong point of described steel ball and the vertical distance of anti-fall baffle ring lower inclined plane are 0-10mm.
4. a kind of rubber tired crane jacking cylinder falling proof device according to claim 1 and 2, is characterized in that described ramp is identical with the angle of described middle part vertical plane with lower inclined plane, is 30 °-60 °.
5. a kind of rubber tired crane jacking cylinder falling proof device according to claim 1 and 2, is characterized in that described annual seat to be vertical section is the cornerite seat of L shape, connected and composed, and be bolted on cylinder body by two semicircle ring seats.
6. a kind of rubber tired crane jacking cylinder falling proof device according to claim 5, is characterized in that described two semicircle ring seats are connected by dovetail form block tongue, notch.
7. a kind of rubber tired crane jacking cylinder falling proof device according to claim 1 and 2, is characterized in that described anti-fall baffle ring is made up of involutory being fixedly connected with of two semicircular baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732329.2U CN204369479U (en) | 2014-11-27 | 2014-11-27 | A kind of rubber tired crane jacking cylinder falling proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732329.2U CN204369479U (en) | 2014-11-27 | 2014-11-27 | A kind of rubber tired crane jacking cylinder falling proof device |
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| Publication Number | Publication Date |
|---|---|
| CN204369479U true CN204369479U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420732329.2U Active CN204369479U (en) | 2014-11-27 | 2014-11-27 | A kind of rubber tired crane jacking cylinder falling proof device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444868A (en) * | 2014-11-27 | 2015-03-25 | 天津港太平洋国际集装箱码头有限公司 | Anti-falling device for jacking oil cylinder of rubber-tired crane |
| CN110678412A (en) * | 2017-04-03 | 2020-01-10 | 卡哥特科专利许可有限公司 | Stabilizer leg device |
| CN116789025A (en) * | 2022-03-12 | 2023-09-22 | 丁安琦 | Multistage piston hydraulic tension oil cylinder |
-
2014
- 2014-11-27 CN CN201420732329.2U patent/CN204369479U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444868A (en) * | 2014-11-27 | 2015-03-25 | 天津港太平洋国际集装箱码头有限公司 | Anti-falling device for jacking oil cylinder of rubber-tired crane |
| CN104444868B (en) * | 2014-11-27 | 2016-11-30 | 天津港太平洋国际集装箱码头有限公司 | A kind of rubber tired crane jacking cylinder falling proof device |
| CN110678412A (en) * | 2017-04-03 | 2020-01-10 | 卡哥特科专利许可有限公司 | Stabilizer leg device |
| CN110678412B (en) * | 2017-04-03 | 2021-04-13 | 希尔博有限公司 | Stabilizer leg device |
| CN116789025A (en) * | 2022-03-12 | 2023-09-22 | 丁安琦 | Multistage piston hydraulic tension oil cylinder |
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