CN204369473U - The rubber tired crane jacking cylinder that a kind of anti-piston rod falls - Google Patents
The rubber tired crane jacking cylinder that a kind of anti-piston rod falls Download PDFInfo
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- CN204369473U CN204369473U CN201420732547.6U CN201420732547U CN204369473U CN 204369473 U CN204369473 U CN 204369473U CN 201420732547 U CN201420732547 U CN 201420732547U CN 204369473 U CN204369473 U CN 204369473U
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Abstract
The utility model relates to the rubber tired crane jacking cylinder that a kind of anti-piston rod falls, it is characterized in that having set up two stage clip sleeves, receiver and anti-fall baffle ring, 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 support sleeve is removable with nozzle along described cylinder body radial direction, and 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, outside face 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 its ring week, initial condition in piston rod retract cylinder, steel ball is positioned at below the lower inclined plane of anti-fall baffle ring, and the horizontal overlap distance in the middle part of steel ball and anti-fall baffle ring between vertical plane is 5-20mm; Stretch out the mode of operation of cylinder body at piston rod, steel ball is positioned at above anti-fall baffle ring.
Description
Technical field
The utility model relates to a kind of rubber tired crane jacking cylinder, particularly relates to the rubber tired crane jacking cylinder that a kind of anti-piston rod falls.
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 the effect of steering hardware drive system, 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, existing jacking cylinder architecture basics improves, the rubber tired crane jacking cylinder that a kind of anti-piston rod falls is provided, thus effectively 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:
The rubber tired crane jacking cylinder that a kind of anti-piston rod falls, comprise jacking cylinder, described jacking cylinder comprises cylinder body, piston rod, described piston rod external part connects the base for supporting of hoisting crane by ball rod Connection Block, described cylinder body is connected the tire steering hardware of hoisting crane, it is characterized in that having set up 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, described 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 in the middle part of the cambered surface top that steel ball leans out 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, original structure need not be changed, 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 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 crane job normally carries out.Stage clip sleeve, receiver that the utility model is set up and anti-fall baffle ring is simple and reliable for structure, stability is high, especially adopt split combination structure, interchangeability is good, the facility that substantially increases installation and maintenance.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation in an initial condition;
Fig. 2 be the utility model in working order under structural representation;
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 utility model initial condition structural representation be applied in rubber tired crane;
Fig. 8 is the utility model works state structural representation be applied in rubber tired crane.
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 the rubber tired crane jacking cylinder that a kind of anti-piston rod falls, comprise jacking cylinder 1, described jacking cylinder 1 comprises cylinder body 11, piston rod 12, described piston rod 12 external part connects the base for supporting 6 of hoisting crane by ball rod Connection Block 5, above-mentioned cylinder body 11 is connected the tire steering hardware 8 of hoisting crane, and of the present utility model being characterised in that has set up two stage clip sleeves 4, receiver 2 and anti-fall baffle ring 3.Receiver 2 is for being sleeved on the annual seat of described jacking cylinder cylinder base 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.
Two stage clip sleeves 4 are arranged on annual seat two side bottom towards cylinder body center respectively by support sleeve 41 is removable with nozzle along described cylinder body 11 radial direction, and stage clip sleeve 4 is by cylindrical shell 43, the device stage clip 44 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 stage clip sleeve, above-mentioned support sleeve 41 is the sleeve with the negative thread mated with cylindrical shell outside thread, and stage clip sleeve 4 is threaded with it through support sleeve 41 and is locked on support sleeve 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 described 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 spring 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 in the middle part of the cambered surface top that steel ball leans out and anti-fall baffle ring between vertical plane 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 12, 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 adopt steel, and have carried out cold galvanizing anti-corrosion treatment.Above-mentioned stage clip have employed φ 7X38mm brute spring.
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 outside of cylinder body of hydraulic oil cylinder 11 bottom port, is static connecting element.The jacking cylinder 1 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 owing to letting out in oil cylinder, piston rod falls under self-gravity action, and 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 to bounce back in cylinder block, now, base for supporting 6 rises and tire 13 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, from and return 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.
The rubber tired crane jacking cylinder that the anti-piston rod adopting the utility model to provide falls, 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, in piston rod external part end, anti-fall baffle ring is set, by regulating level, the vertically distance between the steel ball of stage clip sleeve and anti-fall baffle ring, finally can realize effectively preventing from, because letting out the piston rod tenesmus caused in oil cylinder, ensureing that crane job normally carries out.The Anti-falling structure that the utility model is set up comprises receiver, stage clip sleeve, anti-fall baffle ring, it is simple and reliable for structure, stability is high and structure this as split-type design, the facility be independent parts, interchangeability is good, substantially increasing 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. the rubber tired crane jacking cylinder that falls of an anti-piston rod, comprise jacking cylinder, described jacking cylinder comprises cylinder body, piston rod, described piston rod external part connects the base for supporting of hoisting crane by ball rod Connection Block, described cylinder body is connected the tire steering hardware of hoisting crane, it is characterized in that having set up 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, described 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 in the middle part of the cambered surface top that steel ball leans out 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. the rubber tired crane jacking cylinder that falls of a kind of anti-piston rod 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. the rubber tired crane jacking cylinder that falls of a kind of anti-piston rod 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. the rubber tired crane jacking cylinder that falls of a kind of anti-piston rod 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. the rubber tired crane jacking cylinder that falls of a kind of anti-piston rod 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. the rubber tired crane jacking cylinder that falls of a kind of anti-piston rod according to claim 5, is characterized in that described two semicircle ring seats are connected by dovetail form block tongue, notch.
7. the rubber tired crane jacking cylinder that falls of a kind of anti-piston rod 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 |
|---|---|---|---|
| CN201420732547.6U CN204369473U (en) | 2014-11-27 | 2014-11-27 | The rubber tired crane jacking cylinder that a kind of anti-piston rod falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732547.6U CN204369473U (en) | 2014-11-27 | 2014-11-27 | The rubber tired crane jacking cylinder that a kind of anti-piston rod falls |
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| CN204369473U true CN204369473U (en) | 2015-06-03 |
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| CN201420732547.6U Active CN204369473U (en) | 2014-11-27 | 2014-11-27 | The rubber tired crane jacking cylinder that a kind of anti-piston rod falls |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265349A (en) * | 2016-04-07 | 2017-10-20 | 中集海洋工程研究院有限公司 | The locking device and locking method of bolt-type jack up drilling platform and its jacking system |
| CN107324237A (en) * | 2017-07-24 | 2017-11-07 | 赤湾集装箱码头有限公司 | Field bridge cart jacking cylinder mechanical anti-falling device |
-
2014
- 2014-11-27 CN CN201420732547.6U patent/CN204369473U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265349A (en) * | 2016-04-07 | 2017-10-20 | 中集海洋工程研究院有限公司 | The locking device and locking method of bolt-type jack up drilling platform and its jacking system |
| CN107265349B (en) * | 2016-04-07 | 2019-09-13 | 中集海洋工程研究院有限公司 | The locking device and locking method of bolt-type jack up drilling platform and its jacking system |
| CN107324237A (en) * | 2017-07-24 | 2017-11-07 | 赤湾集装箱码头有限公司 | Field bridge cart jacking cylinder mechanical anti-falling device |
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| GR01 | Patent grant |