CN202481987U - Telescopic jib crane and ratchet wheel winding and locking device thereof - Google Patents
Telescopic jib crane and ratchet wheel winding and locking device thereof Download PDFInfo
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- CN202481987U CN202481987U CN2012201028941U CN201220102894U CN202481987U CN 202481987 U CN202481987 U CN 202481987U CN 2012201028941 U CN2012201028941 U CN 2012201028941U CN 201220102894 U CN201220102894 U CN 201220102894U CN 202481987 U CN202481987 U CN 202481987U
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- ratchet
- locking cylinder
- piston rod
- locating piece
- latching device
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Abstract
The utility model provides a ratchet wheel winding and locking device, which comprises a winding drum, two ratchet wheels, two mounting plates and a locking oil cylinder, wherein the two ratchet wheels are fixedly connected with the winding drum and is coaxial with the winding drum; the winding drum is pivotally connected between the two mounting plates; the fixed end of the locking oil cylinder is pivotally connected between the two mounting plates; and a piston rod of the locking oil cylinder extends, and then, ratchets of the two ratchet wheels are pushed to enable the winding drum to rotate to the tightening direction. The ratchet wheel winding and locking device also comprises a telescopic detection unit. The telescopic detection unit is fixedly arranged on the locking oil cylinder and is used for detecting whether the piston rod of the locking oil cylinder stretches in place relative to the ratchets of the two ratchet wheels or not. The utility model also provides a telescopic jib crane using the ratchet wheel winding and locking device. Compared with the prior art, the equipment reliability is higher.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of ratchet elevator latching device that is applied in the telescopic arm crane.
Background technology
Development along with industries such as wind-powered electricity generation, nuclear power, chemical industry; Parts are modularization and maximization day by day; Increasing demand to hoister in large tonnage increases, and requires crane hoisting height and lifted load to increase, and telescopic arm crane therefore commonly used just develops towards the maximization direction.But principal arm lifting altitude and lifting capacity can't have effectively been improved through optimizing thinkings such as principal arm shape, increase principal arm sectional dimension, raising principal arm strength of material; Can't satisfy the requirement of market to hoister in large tonnage; Therefore need promote principal arm lifting altitude and lifting capacity through improving the arm force-bearing situation by auxiliary device; To satisfy the requirement of market hoister in large tonnage; Have the telescopic arm crane of super lifting device thereby be born, wherein ratchet elevator latching device is the core of super lifting device, and the locking cylinder anti-rotation device is again that can the ratchet elevator correctly lock to guarantee the assurance of super lifting device normal operation.
Promptly disclose a kind of ratchet latching device that is applied in the telescopic arm crane No. 200820136613.8 and No. 200820176536.9 like Chinese patent; Fig. 1 is the structural representation of this existing ratchet latching device, Fig. 2 be among Fig. 1 the ratchet latching device in the structural representation of another angle.See also Fig. 1 and Fig. 2, existing ratchet latching device generally comprises ratchet elevator 10, locking cylinder 11, release oil cylinder 12, retracing spring 13, and ratchet elevator 10 is fixedly connected with ratchet 14 coaxially.Locking cylinder 11 can promote the ratchet of ratchet 14, so that further tighten up steel rope, can locking cylinder 11 and ratchet be broken away from during 12 elongations of release oil cylinder, and retracing spring 13 is arranged between locking cylinder 11 and the adapter plate 15, has the trend of tightening up.The ratchet latching device comprises that also counterrotating circumferential registration device takes place for cylinder body and the piston rod of avoiding locking cylinder 11.Two locating pieces 16,17 of locking cylinder 11 are separately fixed on the piston rod and cylinder body of locking cylinder 11; Be connected with the transition block 18 of elongation on the locating piece 16; Locating piece 17 is provided with spacing draw-in groove 19; Through the spacing purpose that realizes preventing the relative cylinder body rotation of piston rod of locking cylinder 11 of 19 pairs of transition block of spacing draw-in groove 18, detecting unit is arranged in the spacing draw-in groove 19.
Yet the peripheral force that spacing draw-in groove 19 can bear is less, when peripheral force is big, damages spacing draw-in groove 19 easily, also can cause detecting unit to lose efficacy simultaneously.
The utility model content
The utility model provides a kind of ratchet elevator latching device, can improve the reliability of equipment.
In addition, be necessary to provide a kind of telescopic arm crane with above-mentioned ratchet elevator latching device.
For reaching above-mentioned advantage; The utility model provides a kind of ratchet elevator latching device; Comprise reel, two ratchets, two adapter plates and locking cylinder, these two ratchets are fixedly connected on this reel and coaxial with this reel, and this reel is articulated between these two adapter plates; The fixed end of this locking cylinder is articulated between these two adapter plates, and the piston rod of this locking cylinder stretches out and the ratchet that promotes this ratchet makes this reel to the direction rotation of tightening up.This ratchet elevator latching device also comprises: flexible detecting unit, this flexible detecting unit are fixed on this locking cylinder and detect ratchet flexible the putting in place whether of the relative ratchet of piston rod of this locking cylinder.
In an embodiment of the utility model; This ratchet elevator latching device also comprise the piston rod that detects this locking cylinder whether aim at this ratchet ratchet go into the groove detecting unit; This is gone into the groove detecting unit and includes the groove detecting element and go into groove detection sensor block; This is gone into the groove detecting element and goes into groove detection sensor block, and one of them is fixed on the piston rod of this locking cylinder, wherein is fixed therein on the adapter plate to another.
In an embodiment of the utility model; Should comprise base, first detection module, second detection module and the flexible sensor block that detects by flexible detecting unit; This base is fixed on the piston rod of this locking cylinder; Should flexiblely detect sensor block is fixed on the cylinder body of this locking cylinder; This first detection module and this second detection module all are fixed on this base; This first detection module than this second detection module more near this ratchet, this first detection module with should flexible detect sensor block and cooperate the piston rod that detects this locking cylinder whether to be reduced to the position, this second detection module be somebody's turn to do the detection sensor block that stretches and cooperated the piston rod that detects this locking cylinder whether to reach the position.
In an embodiment of the utility model, this base is a strip shape, and its bearing of trend is parallel to the piston rod of this locking cylinder.
In an embodiment of the utility model, this ratchet elevator latching device also comprises the locking cylinder anti-rotation device, and this locking cylinder anti-rotation device separates setting with this flexible detecting unit.
In an embodiment of the utility model, this locking cylinder anti-rotation device and the detecting unit that should stretch are separately positioned on the both sides of this locking cylinder.
In an embodiment of the utility model; This locking cylinder anti-rotation device comprises first locating piece, second locating piece and pipe link; This first locating piece is fixed on the piston rod of this locking cylinder; This second locating piece is fixed on the cylinder body of this locking cylinder, and this first locating piece and this second locating piece all have through hole, and this pipe link passes the through hole of this first locating piece and second locating piece and is fixed therein on the locating piece.
For reaching above-mentioned advantage, the utility model provides a kind of telescopic arm crane, and it comprises above-mentioned ratchet elevator latching device.
The compared with prior art flexible detecting unit of the utility model independently is provided with, and has improved the reliability of equipment.
For let the above-mentioned of the utility model and other purpose, feature and advantage can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Description of drawings
Fig. 1 is the structural representation of existing ratchet latching device.
Fig. 2 be among Fig. 1 the ratchet latching device in the structural representation of another angle.
Fig. 3 is the structural representation of the ratchet elevator latching device of the utility model.
Fig. 4 is that ratchet elevator latching device among Fig. 3 is in the structural representation of another angle.
Fig. 5 is the part-structure scheme drawing of the ratchet elevator latching device among Fig. 3.
Fig. 6 is the structural representation of the locking cylinder anti-rotation device in the present embodiment.
Fig. 7 is the structural representation of the pipe link among Fig. 6.
Fig. 8 is the structural representation of locking cylinder anti-rotation device among another embodiment.
Fig. 9 is again the structural representation of locking cylinder anti-rotation device among the embodiment.
The specific embodiment
Fig. 3 is the structural representation of the ratchet elevator latching device of the utility model; Fig. 4 is that ratchet elevator latching device among Fig. 3 is in the structural representation of another angle; Fig. 5 is the part-structure scheme drawing of the ratchet elevator latching device of the utility model.Please with reference to Fig. 3 to Fig. 5, the ratchet elevator latching device of the utility model comprises reel 21, in order to coiling stay cord (figure does not show).Reel 21 is fixed between two adapter plates 23 through pivot 22.Two adapter plate 23 almost parallels.The coaxial fixed installation in the outside of reel 21 is connected with ratchet 24, and the number of ratchet 24 is generally two, and both are arranged at the both sides of the reel of reel 21 usually.Stay cord can be reeled in the space between two ratchets 24.
The ratchet elevator latching device of the utility model also comprises locking cylinder 25, and the fixed end of locking cylinder 25 is installed between two adapter plates 23 through rotating shaft 26.Rotating shaft 26 axially is parallel to each other with pivot 22.Certainly, locking cylinder 25 also can be provided with through other modes, as long as can be with the fixed end of locking cylinder 25 stationkeeping with respect to reel 21.The cylinder body of locking cylinder 25 is with respect to the position almost fixed of adapter plate 23, and the cylinder body of locking cylinder 25 26 can rotate with respect to adapter plate 23 around the shaft.The piston rod 250 of locking cylinder 25 can stretch out to ratchet 24.The opening direction of the ratchet of ratchet 24 is towards the piston rod 250 of locking cylinder 25; So that both can cooperate; That is, after reel 21 tightened up stay cord, the piston rod 250 of locking cylinder 25 can stretch out and promote the ratchet of ratchet 24; And then be further rotated suitable angle towards the direction of tightening up stay cord, and then further tighten up stay cord by the reel that ratchet 24 drives reels 21.The head of the piston rod 250 of locking cylinder 25 can also fixedly mount ratchet 27, and ratchet 27 is cube substantially.Two anchor shafts 270 are symmetricly set in the both sides of ratchet 27, and the ratchet of the diameter of anchor shaft 270 and ratchet 24 is complementary, and anchor shaft 270 can be absorbed in the ratchet of ratchet 24 just when piston rod 250 elongations of locking cylinder 25.Locking cylinder 25 can promote the ratchet of ratchet 24 through ratchet 27 and anchor shaft 270.
The ratchet elevator latching device of present embodiment more can further comprise by going into the flexible detecting device of locking cylinder that groove detecting unit 28 and flexible detecting unit 29 constitute.Go into the ratchet 27 that groove detecting unit 28 is used to detect locking cylinder 25 and whether arrived correct position, promptly aim at the position of the ratchet of ratchet 24.Go into groove detecting unit 28 and include groove detecting element 280 and go into groove detection sensor block 281, go into groove detecting element 280 and be fixed on the piston rod 250 of locking cylinder 25, go into groove detection sensor block 281 and be fixed therein on the adapter plate 23.Flexible detecting unit 29 comprises base 290, first detection module 291, second detection module 292, and the flexible sensor block 293 that detects.The first detection module 291 and second detection module 292 are separately fixed on the base 290.Base 290 is fixed on the piston rod 250 of locking cylinder 25; Base 290 is roughly strip shape; Its bearing of trend is roughly parallel to piston rod 250, and first detection module 291 is fixed in the end of base 290 near ratchet 24, is used for cooperating detection piston rod 250 whether to be reduced to the position with the flexible sensor block 293 that detects; Second detection module 292 is fixed in the end of base 290 away from ratchet 24, is used for cooperating detection piston rod 250 whether to reach the position with the flexible sensor block 293 that detects.Piston rod 250 stretches out or when withdrawing, drives groove detecting element 280 and be synchronized with the movement with base 290.The flexible sensor block 293 that detects is fixedly installed on the cylinder body of locking cylinder 25.When stay cord release length reaches setting value; Reel 21 stops operating; This moment, the piston rod 250 of locking cylinder 25 stretched out; Ratchet 27 effect through locking cylinder 25 is near the ratchet of ratchet 24, when going into groove detecting element 280 when detecting into groove sensor block 281, shows that ratchet 27 has arrived into the correct position before the groove.The piston rod 250 of locking cylinder 25 continues elongation then, senses the flexible sensor block 293 that detects up to second detection module 292, and show that detecting locking cylinder 25 has reached the position this moment, and ratchet 27 accurately gets into the ratchet of ratchet 24.Simultaneously, the pressure sensor on the locking cylinder 25 detects oil pressure and reaches setting value, guarantees ratchet locking once more.
Please with reference to Fig. 5, in present embodiment, ratchet elevator latching device also comprises locking cylinder anti-rotation device 30, is used to prevent that the piston rod 250 of locking cylinder 25 from rotating with respect to cylinder body.Locking cylinder anti-rotation device 30 separates setting with flexible detecting unit 29, and in the present embodiment, locking cylinder anti-rotation device 30 and flexible detecting unit 29 are separately positioned on the position near both sides of this locking cylinder.Locking cylinder anti-rotation device 30 comprises first locating piece 300, second locating piece 301, locking unit 302 and pipe link 304.First locating piece 300 is fixed on the piston rod 250 of locking cylinder 25, is synchronized with the movement with the piston rod 250 of locking cylinder 25, and second locating piece 301 is fixed on the cylinder body of locking cylinder 25.Wherein first locating piece 300 comprise be set on the piston rod 250 roughly be tetragonal locating plate 3000 and by one jiao of otic placode that extends out 3001 of locating plate 3000.Second locating piece 301 is a block structure.The otic placode 3001 of first locating piece 300 and second locating piece 301 all have a through hole, and the through hole of the otic placode 3001 of first locating piece 300 and second locating piece 301 is coaxial with pipe link 304, and the axis of pipe link 304 is parallel with the piston rod 250 of locking cylinder 25.Pipe link 304 pass first locating piece 300 otic placode 3001 and second locating piece 301 through hole and be fixed therein on the locating piece by locking unit 302, in present embodiment, pipe link 304 is fixed on first locating piece 300 through locking unit 302.When the piston rod 250 relative cylinder bodies of locking cylinder 25 have circumferential movement trend; It is synchronous with the piston rod 250 of locking cylinder 25 that first locating piece 300 can drive pipe link 304; So also have the circumferential movement trend of relative cylinder body simultaneously; But this trend can be retrained by second locating piece 301, thereby has reached the purpose that the cylinder body of the piston rod 250 relative locking cylinders 25 that prevent locking cylinder 25 rotates in a circumferential direction.
Fig. 6 is the part scheme drawing of the locking cylinder anti-rotation device 30 in the present embodiment; Fig. 7 is the scheme drawing of the pipe link 304 among Fig. 6; Please with reference to Fig. 6 and Fig. 7, in present embodiment, pipe link 304 is the strip shape cylinder; It is made up of bigger cylinder of coaxial diameter 3040 and the less cylinder 3041 of diameter, and wherein the periphery of the less cylinder 3041 of diameter has screw thread.Pipe link 304 carries out axial limiting by the step and the locking unit 302 that form between the less cylinder 3041 of the bigger cylinder 3040 of diameter and diameter; Be fixed together with first locating piece 300, promptly the less cylinder 3041 of this diameter passes behind the through hole of otic placode 3001 of this first locating piece 300 by these locking unit 302 lockings.Locking unit 302 comprises plain cushion 3020, spring chair 3021 and nut 3022.Certainly, pipe link 304 also can be fixed on one of them of first locating piece 300 and second locating piece 301 through other modes.For example; As shown in Figure 8, in another embodiment, first locating piece 300 ' through hole have screw thread; Itself and pipe link 304 ' the less cylinder 3041 of diameter ' go up threaded engagement; With reach first locating piece 300 ' with the purpose of pipe link 304 ' fix, in this embodiment, do not need locking unit.Certainly, also can be as shown in Figure 9, pipe link 304 " the less cylinder 3041 of diameter " passes second locating piece 301 " through hole after by locking unit 302 " locking.
The compared with prior art flexible detecting unit of the utility model independently is provided with, and has improved the reliability of equipment.
The above only is the embodiment of the utility model, is not the utility model is done any pro forma restriction; Though the utility model discloses as above with embodiment; Yet be not in order to limiting the utility model, anyly be familiar with the professional and technical personnel, in not breaking away from the utility model technical scheme scope; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from the utility model technical scheme content, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the utility model technical scheme according to the technical spirit of the utility model.
Claims (8)
1. ratchet elevator latching device; Comprise reel, two ratchets, two adapter plates and locking cylinder; These two ratchets are fixedly connected on this reel and coaxial with this reel; This reel is articulated between these two adapter plates, and the fixed end of this locking cylinder is articulated between these two adapter plates, and the piston rod of this locking cylinder stretches out and the ratchet that promotes this ratchet makes this reel to the direction rotation of tightening up; It is characterized in that: this ratchet elevator latching device also comprises: flexible detecting unit, this flexible detecting unit are fixed on this locking cylinder and detect ratchet flexible the putting in place whether of the relative ratchet of piston rod of this locking cylinder.
2. ratchet elevator latching device as claimed in claim 1; It is characterized in that: this ratchet elevator latching device also comprise the piston rod that detects this locking cylinder whether aim at this ratchet ratchet go into the groove detecting unit; This is gone into the groove detecting unit and includes the groove detecting element and go into groove detection sensor block; This is gone into the groove detecting element and goes into groove detection sensor block, and one of them is fixed on the piston rod of this locking cylinder, wherein is fixed therein on the adapter plate to another.
3. ratchet elevator latching device as claimed in claim 1; It is characterized in that: this flexible detecting unit comprises base, first detection module, second detection module and the flexible sensor block that detects; This base is fixed on the piston rod of this locking cylinder; Should flexiblely detect sensor block is fixed on the cylinder body of this locking cylinder; This first detection module and this second detection module all are fixed on this base; This first detection module than this second detection module more near this ratchet, this first detection module with should flexible detect sensor block and cooperate the piston rod that detects this locking cylinder whether to be reduced to the position, this second detection module be somebody's turn to do the detection sensor block that stretches and cooperated the piston rod that detects this locking cylinder whether to reach the position.
4. ratchet elevator latching device as claimed in claim 3 is characterized in that: this base is a strip shape, and its bearing of trend is parallel to the piston rod of this locking cylinder.
5. ratchet elevator latching device as claimed in claim 1 is characterized in that: this ratchet elevator latching device also comprises the locking cylinder anti-rotation device, and this locking cylinder anti-rotation device separates setting with this flexible detecting unit.
6. ratchet elevator latching device as claimed in claim 5 is characterized in that: this locking cylinder anti-rotation device and the detecting unit that should stretch are separately positioned on the both sides of this locking cylinder.
7. ratchet elevator latching device as claimed in claim 5; It is characterized in that: this locking cylinder anti-rotation device comprises first locating piece, second locating piece and pipe link; This first locating piece is fixed on the piston rod of this locking cylinder; This second locating piece is fixed on the cylinder body of this locking cylinder, and this first locating piece and this second locating piece all have through hole, and this pipe link passes the through hole of this first locating piece and second locating piece and is fixed therein on the locating piece.
8. a telescopic arm crane is characterized in that, comprises like each described ratchet elevator latching device of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201028941U CN202481987U (en) | 2012-03-19 | 2012-03-19 | Telescopic jib crane and ratchet wheel winding and locking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201028941U CN202481987U (en) | 2012-03-19 | 2012-03-19 | Telescopic jib crane and ratchet wheel winding and locking device thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN202481987U true CN202481987U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201028941U Expired - Lifetime CN202481987U (en) | 2012-03-19 | 2012-03-19 | Telescopic jib crane and ratchet wheel winding and locking device thereof |
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| CN (1) | CN202481987U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552938A (en) * | 2013-11-14 | 2014-02-05 | 徐州重型机械有限公司 | Crane and super-lift winch locking mechanism thereof |
| CN104843604A (en) * | 2015-04-08 | 2015-08-19 | 山东建筑大学 | Crane winding device with steel wire rope straining mechanism |
| CN110529163A (en) * | 2019-07-20 | 2019-12-03 | 安徽理工大学 | A kind of intelligence coal mine bracket |
| CN112762048A (en) * | 2021-01-06 | 2021-05-07 | 武芳 | Oil cylinder of sanitation garbage truck |
| CN112879387A (en) * | 2021-01-06 | 2021-06-01 | 武芳 | Hydraulic cylinder |
-
2012
- 2012-03-19 CN CN2012201028941U patent/CN202481987U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552938A (en) * | 2013-11-14 | 2014-02-05 | 徐州重型机械有限公司 | Crane and super-lift winch locking mechanism thereof |
| CN103552938B (en) * | 2013-11-14 | 2015-12-16 | 徐州重型机械有限公司 | A kind of hoisting crane and super lift winch lockable mechanism thereof |
| CN104843604A (en) * | 2015-04-08 | 2015-08-19 | 山东建筑大学 | Crane winding device with steel wire rope straining mechanism |
| CN110529163A (en) * | 2019-07-20 | 2019-12-03 | 安徽理工大学 | A kind of intelligence coal mine bracket |
| CN110529163B (en) * | 2019-07-20 | 2021-04-23 | 安徽理工大学 | Intelligent coal mine support |
| CN112762048A (en) * | 2021-01-06 | 2021-05-07 | 武芳 | Oil cylinder of sanitation garbage truck |
| CN112879387A (en) * | 2021-01-06 | 2021-06-01 | 武芳 | Hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |