CN201321354Y - Telescopic arm crane and ratchet wheel locking device thereof - Google Patents
Telescopic arm crane and ratchet wheel locking device thereof Download PDFInfo
- Publication number
- CN201321354Y CN201321354Y CNU2008201765369U CN200820176536U CN201321354Y CN 201321354 Y CN201321354 Y CN 201321354Y CN U2008201765369 U CNU2008201765369 U CN U2008201765369U CN 200820176536 U CN200820176536 U CN 200820176536U CN 201321354 Y CN201321354 Y CN 201321354Y
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- ratchet
- locking cylinder
- telescopic arm
- arm crane
- latching device
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Abstract
The utility model discloses a ratchet wheel locking device which is used in a raising device of a telescopic arm crane. A hoister of the raising device is fixedly connected with a ratchet wheel which is coaxial with the hoister, the hoister comprises a locking oil cylinder, wherein the first end of the locking oil cylinder is hinged with a mounting plate of the hoister, and a second end of the locking oil cylinder can drive the hoister to rotate for suitable angle to the tightening direction through ratchets of the ratchet wheel after extending to suitable length. In the ratchet wheel locking device which is provided by the utility model, the second end of the locking oil cylinder can dive the ratchets of the ratchet wheel to drive the hoister, thereby the hoister can be tightened under the effect of a motor and then can be further rotated for suitable angle to the tightening direction of a stay cord, thereby effectively tightening the stay cord, the raising device can effectively exert the functions, and thereby the hoisting performance of the telescopic arm crane can be prominently improved.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of ratchet latching device that is used for the super lifting device of telescopic arm crane.The utility model also relates to the telescopic arm crane that comprises above-mentioned ratchet latching device.
Background technology
Fast development along with China's economic construction, market for telescopic arm crane particularly the demand of large-tonnage telescopic arm crane increase day by day, the camp site is more and more higher for the requirement of total arm length, lifting altitude and a liter weight of telescopic arm crane, and telescopic arm crane (for example wheeled telescopic arm crane) therefore commonly used just develops towards the direction that maximizes; Maximization is an important design goal of telescopic arm crane.
At present, by optimizing the lifting performance that mentalities of designing such as principal arm cross-sectional plane, raising principal arm strength of material can not continue to significantly improve telescopic arm crane, therefore, the improvement of telescopic arm crane lifting performance mainly realizes by super lifting device.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation that is installed on the super lifting device of telescopic crane boom.
Super lifting device generally includes swinging strut 11, the cylinder of swinging strut 11 for having enough rigidity and intensity, and its fixed end is by basic arm 22 pivot joints of rotating shaft and telescopic arm crane; Above-mentioned rotating shaft is horizontally disposed with substantially, and its axis is positioned at the cross-sectional plane of basic arm 22, so that swinging strut 11 is roughly vertical plane with basic arm 22 determined planes (luffing plane) when this shaft axis rotates.
Described super lifting device also comprises the amplitude oil cylinder of being located between swinging strut 11 and the basic arm 22 12 usually; the two ends of amplitude oil cylinder 12 are articulated with swinging strut 11 and basic arm 22 respectively, rotate in above-mentioned luffing plane with respect to basic arm 22 to promote swinging strut 11.
Swinging strut 11 has and the corresponding movable end of its fixed end, between the outer end of this movable end and the arbitrary telescopic boom 21 of described telescopic arm crane first take-up device 13 is set; Be provided with second take-up device 14 between the root of the movable end of swinging strut 11 and basic arm 22.First take-up device 13 and second take-up device 14 can be that pull bar or stay cord add elevator etc. usually.
When described super lifting device is worked, because first take-up device 13 applies first pulling force between the movable end of telescopic boom 21 and swinging strut 11, this first pulling force can weight equalizer the part shearing force, therefore, hoisting crane principal arm stressed improves under the equal conditions, amount of deflection is significantly less; In like manner, second pulling force of second take-up device 14 will significantly alleviate the amount of deflection of swinging strut 11, and pulling force is conducted to the root of basic arm 22, also can improve the limit of above-mentioned first pulling force simultaneously.Therefore, described super lifting device the strained condition that can significantly improve the hoisting crane principal arm is set, and then significantly promote its lifting performance.
Yet because stay cord is generally steel rope, steel rope will produce distortion under the state that bears big pulling force, and its deflection is not the pulling force linear change of bearing along with it; Therefore, during the work of described super lifting device, only be difficult to the pulling force that provides enough, be not enough to overcome the deadweight of arm, stay cord effectively can't be tightened up with the motor of elevator.Stay cord is not if strain, and described super lifting device obviously is difficult to effectively play a role.
The utility model content
The purpose of this utility model provides a kind of ratchet latching device, can effectively stay cord be tightened up.Another purpose of the present utility model provides a kind of telescopic arm crane that comprises above-mentioned ratchet latching device.
For solving the problems of the technologies described above, the utility model provides a kind of ratchet latching device, is used for the super lifting device of telescopic arm crane, and the elevator of described super lifting device is fixedly connected with the ratchet coaxial with it; Described ratchet latching device comprises locking cylinder, and first end of described locking cylinder and the adapter plate of described elevator are hinged; After being stretched to suitable length, second end of described locking cylinder can promote described elevator by the ratchet of described ratchet to the suitable angle of direction rotation of tightening up.
Preferably, second end of described locking cylinder fixed installation push pedal, the both sides of described push pedal are provided with anchor shaft; Described locking cylinder promotes described ratchet by described anchor shaft.
Preferably, described ratchet latching device further comprises the release oil cylinder, and the two ends of described release oil cylinder are hinged with described adapter plate and described locking cylinder respectively; Described release oil cylinder can push away described ratchet with second end of described locking cylinder during elongation.
Preferably, described ratchet latching device further comprises retracing spring, and described retracing spring is arranged between described locking cylinder and the described adapter plate, and has the trend of tightening up.
The utility model also provides a kind of telescopic arm crane, comprises above-mentioned ratchet latching device.
Preferably, described telescopic arm crane is specially wheeled telescopic arm crane.
Ratchet latching device provided by the utility model, second end of its locking cylinder can promote the ratchet of described ratchet, and then promote described elevator, like this, described elevator can also further rotate suitable angle to the direction of tightening up stay cord after tension under the effect of motor, thereby can be effectively with described stay cord tensioning, described super lifting device can play a role effectively, the lifting performance of telescopic arm crane thereby can be significantly improved.
Description of drawings
Fig. 1 is a kind of structural representation that is installed on the super lifting device of telescopic crane boom;
Fig. 2 provides the structural representation of a kind of specific embodiment of ratchet latching device for the utility model;
Fig. 3 is the structural representation at another visual angle of ratchet latching device shown in Figure 2.
The specific embodiment
Core of the present utility model provides a kind of ratchet latching device, can effectively stay cord be tightened up.Another core of the present utility model provides a kind of telescopic arm crane that comprises above-mentioned ratchet latching device.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2 and Fig. 3, Fig. 2 provides the structural representation of a kind of specific embodiment of ratchet latching device for the utility model; Fig. 3 is the structural representation at another visual angle of ratchet latching device shown in Figure 2.
Super lifting device generally includes elevator 31, in order to the coiling stay cord.Can be in Fig. 1 parallel substantially and the adapter plate 32 of movable end (certainly, the being not limited thereto the position) captive joint two of swinging strut 11 with suitable spacing, thereby elevator 31 can be installed between two adapter plates 32.
The outside of elevator 31 is installed with ratchet 33.Normally two of numbers of ratchet 33, and both are arranged at the both sides of elevator 31 reels usually, ratchet 33 should with the coaxial setting of the reel of elevator 31.Stay cord can be reeled in the space between two ratchets 33.
In a kind of specific embodiment, ratchet latching device provided by the utility model comprises locking cylinder 34, and first end of locking cylinder 34 (being its fixed end) can be installed between above-mentioned two adapter plates 32 by rotating shaft 35.Certainly, locking cylinder 34 is not inevitable to be provided with like this, is provided with in other way to be fine, as long as can the position of first end of locking cylinder 34 is fixing with respect to elevator 31 yet.
The cylinder barrel of locking cylinder 34 is fixing substantially with respect to the position of adapter plate 32, and certainly, the cylinder barrel of locking cylinder 34 35 rotations with respect to adapter plate 32 around the shaft still is passable.Second end of locking cylinder 34 (being its cylinder rod end) can stretch out to ratchet 33.Obviously, the opening direction of the ratchet of ratchet 33 is towards the cylinder bar of locking cylinder 34, so that both can cooperate, promptly, after elevator 31 tightens up stay cord, the cylinder bar of locking cylinder 34 can stretch out and promote the ratchet of ratchet 33, and then is further rotated suitable angle by the reel of ratchet 33 drive elevators 31 towards the direction of tightening up stay cord, thereby further tightens up described stay cord.
Ratchet latching device provided by the utility model, second end of its locking cylinder 34 can promote the ratchet of ratchet 33, and then promotion elevator 31, like this, elevator 31 can also further rotate suitable angle to the direction of tightening up stay cord after tension under the effect of motor, thereby can be effectively with described stay cord tensioning, described super lifting device can play a role effectively, the lifting performance of telescopic arm crane thereby can be significantly improved.
The cylinder bar of locking cylinder 34 and the relative position of cylinder barrel are not limited to situation mentioned above, and for example, both positions can also be exchanged.
Can also be further in second end fixed installation push pedal 36 of locking cylinder 34, push pedal 36 is square substantially.The both sides of push pedal 36 can be provided with anchor shaft 37, and anchor shaft 37 is symmetrical arranged usually, can appropriately select its diameter, and it can be absorbed in the ratchet of ratchet 33 when locking cylinder 34 elongations just.Locking cylinder 34 can promote the ratchet of ratchets 33 by push pedal 36 and anchor shaft 37, and the accurate location of the easier realization locking cylinder 34 of this concrete mode and ratchet 33 helps improving the reliability of ratchet latching device.
As shown in Figure 3, release oil cylinder 38 can also be set further, an end of release oil cylinder 38 can be hinged with adapter plate 32, and the other end of release oil cylinder 38 can be hinged with locking cylinder 34, and the pivotally attached position is first end of locking cylinder 34.Like this, when carrying out unlocking operation, can extend release oil cylinder 38, therefore lock oil cylinder 38 will promote locking cylinder 34 and make the ratchet of second end disengaging ratchet 33 of locking cylinder 34, and it is comparatively convenient to operate.
Retracing spring 39 can also be set, and retracing spring 39 can be arranged between locking cylinder 38 and the adapter plate 32, and has the trend of tightening up.Like this, when needs tighten up described stay cord, the release oil cylinder 38 of can withdrawing, locking cylinder 34 will snap under the pulling of retracing spring 39 in the ratchet of ratchet 33, can extend locking cylinder 34 then, thereby can realize tightening up of stay cord.
Telescopic arm crane provided by the utility model comprises above-mentioned ratchet latching device; The structure of described other parts of telescopic arm crane can be not described in detail this this paper with reference to prior art.Described telescopic arm crane specifically can be wheeled telescopic arm crane.
More than telescopic arm crane provided by the utility model and ratchet latching device thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
1, a kind of ratchet latching device is used for the super lifting device of telescopic arm crane, and the elevator of described super lifting device is fixedly connected with the ratchet coaxial with it, it is characterized in that, comprises locking cylinder, and first end of described locking cylinder and the adapter plate of described elevator are hinged; After being stretched to suitable length, second end of described locking cylinder can promote described elevator by the ratchet of described ratchet to the suitable angle of direction rotation of tightening up.
2, ratchet latching device as claimed in claim 1 is characterized in that, second end fixed installation push pedal of described locking cylinder, and the both sides of described push pedal are provided with anchor shaft; Described locking cylinder promotes described ratchet by described anchor shaft.
3, ratchet latching device as claimed in claim 2 is characterized in that, further comprises the release oil cylinder, and the two ends of described release oil cylinder are hinged with described adapter plate and described locking cylinder respectively; Described release oil cylinder can push away described ratchet with second end of described locking cylinder during elongation.
4, ratchet latching device as claimed in claim 3 is characterized in that, further comprises retracing spring, and described retracing spring is arranged between described locking cylinder and the described adapter plate, and has the trend of tightening up.
5, a kind of telescopic arm crane is characterized in that, comprises as each described ratchet latching device of claim 1 to 4.
6, telescopic arm crane as claimed in claim 5 is characterized in that, is specially wheeled telescopic arm crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201765369U CN201321354Y (en) | 2008-11-21 | 2008-11-21 | Telescopic arm crane and ratchet wheel locking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201765369U CN201321354Y (en) | 2008-11-21 | 2008-11-21 | Telescopic arm crane and ratchet wheel locking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321354Y true CN201321354Y (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201765369U Expired - Fee Related CN201321354Y (en) | 2008-11-21 | 2008-11-21 | Telescopic arm crane and ratchet wheel locking device thereof |
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| CN (1) | CN201321354Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857176A (en) * | 2010-07-05 | 2010-10-13 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| CN102126678A (en) * | 2010-12-31 | 2011-07-20 | 徐州重型机械有限公司 | Crane and super-lifting and tensioning control system and method thereof |
| CN102633190A (en) * | 2012-04-19 | 2012-08-15 | 中联重科股份有限公司 | Super-lift system, engineering machinery, control method and control device for super-lift system |
| CN102873620A (en) * | 2012-09-14 | 2013-01-16 | 张贻景 | Device for automatically tensioning grinding roller abrasive cloth |
| CN103420296A (en) * | 2013-08-29 | 2013-12-04 | 徐州重型机械有限公司 | Super-lifting device, front pre-tightened steel wire rope length control system and crane |
| CN103737389A (en) * | 2013-12-16 | 2014-04-23 | 芜湖欣荣管业科技有限公司 | Pressure-detectable pawl looseness-prevention high-precision fine adjustment fixture |
| CN103848171A (en) * | 2014-03-27 | 2014-06-11 | 中国船舶重工集团公司第七0四研究所 | Automatic positioning, locking and releasing mechanism for rotational motion |
| CN108792943A (en) * | 2018-08-08 | 2018-11-13 | 长沙中联恒通机械有限公司 | It is a kind of that there is the coaxial boom hoisting of elevator and crane and engineering machinery side by side |
| CN108840261A (en) * | 2018-08-14 | 2018-11-20 | 中联重科股份有限公司 | Control the method, apparatus and setting-up elevator control system of setting-up elevator |
| CN111379759A (en) * | 2018-12-28 | 2020-07-07 | 徐州徐工液压件有限公司 | Hydraulic oil cylinder assembly and crane |
| CN113834694A (en) * | 2021-09-07 | 2021-12-24 | 安徽建筑大学 | Tension self-adaptive four-axis intelligent sampling machine |
-
2008
- 2008-11-21 CN CNU2008201765369U patent/CN201321354Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012003767A1 (en) * | 2010-07-05 | 2012-01-12 | 湖南三一智能控制设备有限公司 | Super lift device and telescope arm lift device with the same |
| CN101857176B (en) * | 2010-07-05 | 2013-04-10 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| CN101857176A (en) * | 2010-07-05 | 2010-10-13 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| CN102126678A (en) * | 2010-12-31 | 2011-07-20 | 徐州重型机械有限公司 | Crane and super-lifting and tensioning control system and method thereof |
| CN102126678B (en) * | 2010-12-31 | 2012-10-03 | 徐州重型机械有限公司 | Crane and super-lifting and tensioning control system and method thereof |
| CN102633190B (en) * | 2012-04-19 | 2013-12-25 | 中联重科股份有限公司 | Super-lift system, engineering machinery, control method and control device for super-lift system |
| CN102633190A (en) * | 2012-04-19 | 2012-08-15 | 中联重科股份有限公司 | Super-lift system, engineering machinery, control method and control device for super-lift system |
| WO2013155821A1 (en) * | 2012-04-19 | 2013-10-24 | 中联重科股份有限公司 | Method and apparatus for controlling super-lifting system, super-lifting system and engineering machinery |
| CN102873620A (en) * | 2012-09-14 | 2013-01-16 | 张贻景 | Device for automatically tensioning grinding roller abrasive cloth |
| CN103420296A (en) * | 2013-08-29 | 2013-12-04 | 徐州重型机械有限公司 | Super-lifting device, front pre-tightened steel wire rope length control system and crane |
| CN103420296B (en) * | 2013-08-29 | 2016-04-27 | 徐州重型机械有限公司 | A kind of super lifting device, front pretension rope capacity control system and hoisting crane |
| CN103737389A (en) * | 2013-12-16 | 2014-04-23 | 芜湖欣荣管业科技有限公司 | Pressure-detectable pawl looseness-prevention high-precision fine adjustment fixture |
| CN103848171A (en) * | 2014-03-27 | 2014-06-11 | 中国船舶重工集团公司第七0四研究所 | Automatic positioning, locking and releasing mechanism for rotational motion |
| CN108792943A (en) * | 2018-08-08 | 2018-11-13 | 长沙中联恒通机械有限公司 | It is a kind of that there is the coaxial boom hoisting of elevator and crane and engineering machinery side by side |
| CN108792943B (en) * | 2018-08-08 | 2023-08-29 | 中联恒通机械有限公司 | Hoisting device with coaxial parallel hoisting and crane and engineering machinery |
| CN108840261A (en) * | 2018-08-14 | 2018-11-20 | 中联重科股份有限公司 | Control the method, apparatus and setting-up elevator control system of setting-up elevator |
| CN111379759A (en) * | 2018-12-28 | 2020-07-07 | 徐州徐工液压件有限公司 | Hydraulic oil cylinder assembly and crane |
| CN113834694A (en) * | 2021-09-07 | 2021-12-24 | 安徽建筑大学 | Tension self-adaptive four-axis intelligent sampling machine |
| CN113834694B (en) * | 2021-09-07 | 2024-02-06 | 安徽建筑大学 | Tensioning force self-adaptive four-axis intelligent sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20171121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |