CN202614781U - System of determining pulley rotation speed, winch system and crane - Google Patents
System of determining pulley rotation speed, winch system and crane Download PDFInfo
- Publication number
- CN202614781U CN202614781U CN 201120526640 CN201120526640U CN202614781U CN 202614781 U CN202614781 U CN 202614781U CN 201120526640 CN201120526640 CN 201120526640 CN 201120526640 U CN201120526640 U CN 201120526640U CN 202614781 U CN202614781 U CN 202614781U
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- pulley
- crane
- pulse
- pulse induction
- induction device
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Abstract
The utility model provides a system of determining a pulley rotation speed, a winch system and a crane. In the prior art, precision is low during determining a motion speed of a crane hook. By using the systems and the crane of the utility model, the above problem can be solved. The system of determining the pulley rotation speed comprises a disk-shaped pulse induction apparatus and a pulse detection apparatus, wherein an edge of the disk-shaped pulse induction apparatus is provided with a circle of uniformly distributed holes or a circle of gear-shaped embossments; the pulse detection apparatus is fixed nearby the edge of the disk-shaped pulse induction apparatus and is used to emit a detection signal when the pulse induction apparatus and the pulley are rotated synchronously and are close to the each hole or the gear-shaped embossment so as to determine the rotation speed of the pulley according to a generation frequency of the detection signal. By using the technical scheme of the utility model, the rotation speed of the pulley can be accurately determined. The scheme is suitable for various kinds of occasions which need to determine the rotation speed of the pulley. For the rotating speed detection of a crane jib head pulley, a winch speed of the crane can be further calculated according to the rotation speed of the pulley.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates to a kind of system and hoisting system and crane of definite pulley rotating speed especially.
Background technology
Crane is a kind of common engineering machinery.Fig. 1 is the synoptic diagram of the crane hoisting mechanism element relevant with the utility model.As shown in Figure 1, crane hoisting mechanism comprises: suspension hook 1, head pulley 2, hoisting rope 3, windlass 4, hoist motor 5.During work, hoist motor 5 drives windlass 4 and rotates under the effect of hydraulic pressure, rolls wire rope 3, can twine a lot of layers of wire rope 3 above the windlass 4, after wire rope 3 is walked around arm head pulley 2, links to each other the suspension hook 1 following respective loads of can slinging with suspension hook 1.
In present stage, crane is when hoisting or descending operation, and the size of the movement velocity of suspension hook is normally estimated judgement by operating personnel, and accuracy is lower.For this problem, effective solution is not proposed as yet at present.
The utility model content
The fundamental purpose of the utility model provides a kind of system and hoisting system and crane of definite pulley rotating speed, the lower problem of precision when solving the movement velocity of confirming crane hook in the prior art.
To achieve these goals, according to an aspect of the utility model, a kind of system of definite pulley rotating speed is provided.
The discoidal pulse induction device of the utility model comprises: discoidal pulse induction device, its edge have the convexity of an equally distributed hole of circle or a circle gear-like; Pulse detecting equipment; Be fixed near the said discoidal pulse induction device edge; Be used for when said pulse induction device and pulley rotate synchronously, when sending detection signal for the rotating speed of confirming said pulley according to the generation frequency of this detection signal when protruding near each said hole or said gear-like.
Further, said pulse induction device is fitted in a side on the plane, disc place of said pulley.
Further, said system also comprises connecting rod, and these connecting rod two ends are separately fixed on said pulley and the said pulse induction device, makes said pulse induction device to rotate synchronously with said trackslipping.
According to the utility model on the other hand, a kind of hoisting system is provided.
The hoisting system of the utility model comprises pulley and the windlass that connects through rope, also comprises the utility model system of fixed pulley rotating speed really, is used to detect the rotating speed of the pulley that is connected with said windlass.
According to the utility model on the other hand, a kind of crane is provided.
The crane of the utility model has arm and suspension hook, and this suspension hook is connected with windlass via the chain wheel rope of walking around the arm head, and said crane also comprises the utility model system of fixed pulley rotating speed really.
Further, also comprise display device, be used to show the movement velocity of said suspension hook.
Further, said display device is the display screen of the power limit device of said crane.
According to the technical scheme of the utility model, through detecting the motion with the discoidal pulse induction device edge periodic structure of pulley synchronous operation, thereby can confirm the rotating speed of pulley exactly.This scheme is confirmed the occasion of pulley rotating speed applicable to various needs.Rotating speed for crane arm head pulley detects; Can also further calculate the lifting-speed of crane according to the velocity gauge of this pulley; When this lifting-speed shows through display screen; The operating personnel of crane just can learn intuitively, help improving the accuracy of hoisting operation.In addition, lifting-speed can also be noted for relevant data analysis.
Description of drawings
Figure of description is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the synoptic diagram of the crane hoisting mechanism element relevant with the utility model;
Fig. 2 is the synoptic diagram of a kind of hoisting system chief component relevant with the utility model;
Fig. 3 is the concrete structure synoptic diagram of the head pulley 2 among Fig. 2;
Fig. 4 A is the synoptic diagram of the transmission signal area of a kind of pulse detecting equipment relevant with the utility model embodiment;
Fig. 4 B and Fig. 4 C are the synoptic diagram of the pulse detecting equipment shown in Fig. 4 A near the state of the plate object that has the hole;
Fig. 4 D is the synoptic diagram of the waveform of the pulse of sending of the pulse detecting equipment shown in Fig. 4 A; And
Fig. 5 is the synoptic diagram of the optional structure of the pulse induction device relevant with the utility model.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
In the utility model really the system of fixed pulley rotating speed mainly comprise discoidal pulse induction device and pulse detecting equipment.The pulse induction device is fitted in a side on the plane, disc place of said pulley, perhaps is connected with pulley through connecting rod, and these connecting rod two ends are separately fixed on pulley and the pulse induction device, make the pulse induction device can with the synchronous rotation of trackslipping.The edge of pulse induction device has the structure of periodic shapes, and the structure of this periodic shapes can be the equally distributed hole of a circle, also can be the convexity of a circle gear-like.Pulse detecting equipment is fixed near the discoidal pulse induction device edge; Be used for when pulse induction device and pulley rotate synchronously, when near the structure of each said periodic shapes, send detection signal for the rotating speed of confirming pulley according to the generation frequency of this detection signal.
In the utility model really the system of fixed pulley rotating speed can also comprise the data processing equipment that is connected with pulse detecting equipment, be used for confirming the velocity of rotation of pulley according to the generation frequency of detection signal.
Fig. 2 is the synoptic diagram of a kind of hoisting system chief component relevant with the utility model.Fig. 3 is the concrete structure synoptic diagram of the head pulley 2 among Fig. 2, and Fig. 3 shows the relative mounting positions of discoidal pulse induction device 7 and pulse detecting equipment 6.As shown in Figures 2 and 3, this hoisting system mainly comprises suspension hook 1, head pulley 2, hoisting rope 3, windlass 4, hoist motor 5, pulse detecting equipment 6, pulse induction device 7, power limit device display screen 8, data processing equipment 9.
During work, identical with general hoisting mechanism, hoist motor 5 is under the effect of hydraulic pressure; Drive windlass 4 and rotate, roll wire rope 3, can twine a lot of layers of wire rope 3 above the windlass 4; After wire rope 3 is walked around arm head pulley 2, link to each other the suspension hook 1 following respective loads of can slinging with suspension hook 1.But the side at arm head pulley 2 is equipped with pulse induction device 7, in its distance of reaction, pulse detecting equipment 6 is installed, this pulse detecting equipment 6 and head relative fixed.
The ultimate principle of the pulse detecting equipment 6 that adopts in the present embodiment is to continue to send signal, thereby different also different to signal feedback according to object surface appearance everywhere, becomes the pulse of varying strength according to different feedback regeneration.Fig. 4 A is the synoptic diagram of the transmission signal area of a kind of pulse detecting equipment relevant with the utility model embodiment; Fig. 4 B and Fig. 4 C are the synoptic diagram of the pulse detecting equipment shown in Fig. 4 A near the state of the plate object that has the hole; Fig. 4 D is the synoptic diagram of the waveform of the pulse of sending of the pulse detecting equipment shown in Fig. 4 A.Shown in Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D; Pulse detecting equipment 40 sends signal; Form signal area 41; When having the plate object 42 in hole, when signal area 41 approaching be the continuum 421 of plate object 42 time (shown in Fig. 4 B), then receive first type feedback (specifically be to have reflected signal this moment); When signal area 41 approaching be the hole 422 of plate object 42 time (shown in Fig. 4 C), then receive second type feedback (specifically be not have reflected signal this moment).Pulse detecting equipment generates the signal (like the signal intensity among Fig. 4 D 43) of first kind of intensity when the feedback of receiving first type, be the signal (like the signal intensity among Fig. 4 D 44) that generates second kind of intensity in the feedback of receiving second type.
Utilize the above-mentioned principle of pulse detecting equipment, can adopt the disk that has even hole, promptly the pulse induction device 7.Pulse detecting equipment 6 emission electromagnetic signals; When arm head pulley 2 rotates; Pulse induction device 7 also rotates simultaneously, and pulse detecting equipment 6 is alternately aimed at the porose zone at pulse induction device 7 edges and do not had the zone in hole, is similar to the pulse shown in Fig. 4 D thereby send out.Can find out that the pulse transmit direction of pulse detecting equipment 6 should be vertical with plane, pulse induction device 7 place (i.e. the paper of view among the figure).The pulse shown in Fig. 4 D that is similar to that pulse detecting equipment 6 sends out is delivered to data processing equipment 9; Data processing equipment 9 becomes this conversion of signals the velocity of rotation of arm head pulley 2; Again according to the size of arm head pulley 2, convert velocity of rotation the linear velocity of wire rope 3 to, last; The multiplying power relation of the speed that moves up and down according to the rotational line speed and the suspension hook 1 of arm head pulley 2 converts the linear velocity of wire rope 3 to lifting velocity that suspension hook 1 is a load.The lifting velocity of load can be shown by display screen, for example is presented at adding on the limit device display screen of crane.
Fig. 5 is the synoptic diagram of the optional structure of the pulse induction device relevant with the utility model.As shown in Figure 5, pulse induction device 7 is gear shape, and the detection side of pulse detecting equipment 6 be to can being perpendicular to plane, pulse induction device 7 place, when pulse detecting equipment 6 replaces boss and the non-boss of aligned wheels profile of tooth, also sends pulse this moment.The detection side of pulse detecting equipment 6 to also can be pulse induction device 7 radially.
Crane in the present embodiment has arm and suspension hook; This suspension hook is connected with windlass via walking around arm head chain wheel rope; And having in the present embodiment system of fixed pulley rotating speed really, this confirms also have data processing equipment in the system of pulley rotating speed, is connected with pulse detecting equipment; Be used for confirming the velocity of rotation of arm head pulley, and confirm the movement velocity of suspension hook according to the relation between the movement velocity of the velocity of rotation of this pulley and suspension hook according to the generation frequency of detection signal.This crane can also comprise display device, is used to show the movement velocity of suspension hook.This display device can be the display screen of the power limit device of crane.
According to the technical scheme of the utility model embodiment, through detecting the motion with the discoidal pulse induction device edge periodic structure of pulley synchronous operation, thereby can confirm the rotating speed of pulley exactly.This scheme is confirmed the occasion of pulley rotating speed applicable to various needs.Rotating speed for crane arm head pulley detects; Can also further calculate the lifting-speed of crane according to the velocity gauge of this pulley; When this lifting-speed shows through display screen; The operating personnel of crane just can learn intuitively, help improving the accuracy of hoisting operation.In addition, lifting-speed can also be noted for relevant data analysis.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. the system of a definite pulley rotating speed is characterized in that, comprising:
Discoidal pulse induction device, its edge have the convexity of an equally distributed hole of circle or a circle gear-like;
Pulse detecting equipment; Be fixed near the said discoidal pulse induction device edge; Be used for when said pulse induction device and pulley rotate synchronously, when sending detection signal for the rotating speed of confirming said pulley according to the generation frequency of this detection signal when protruding near each said hole or said gear-like.
2. system according to claim 1 is characterized in that, said pulse induction device is fitted in a side on the plane, disc place of said pulley.
3. system according to claim 1 is characterized in that said system also comprises connecting rod, and these connecting rod two ends are separately fixed on said pulley and the said pulse induction device, makes said pulse induction device to rotate synchronously with said trackslipping.
4. a hoisting system comprises the pulley and the windlass that connect through rope, it is characterized in that said hoisting system also comprises the system of each described definite pulley rotating speed in the claim 1 to 3, is used to detect the rotating speed of the pulley that is connected with said windlass.
5. a crane has arm and suspension hook, and this suspension hook is connected with windlass via the chain wheel rope of walking around the arm head, it is characterized in that,
Said crane also comprises the system of each described definite pulley rotating speed in the claim 1 to 3.
6. crane according to claim 5 is characterized in that, also comprises display device, is used to show the movement velocity of said suspension hook.
7. crane according to claim 6 is characterized in that, said display device is the display screen of the power limit device of said crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120526640 CN202614781U (en) | 2011-12-15 | 2011-12-15 | System of determining pulley rotation speed, winch system and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120526640 CN202614781U (en) | 2011-12-15 | 2011-12-15 | System of determining pulley rotation speed, winch system and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614781U true CN202614781U (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120526640 Expired - Fee Related CN202614781U (en) | 2011-12-15 | 2011-12-15 | System of determining pulley rotation speed, winch system and crane |
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| CN (1) | CN202614781U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043533A (en) * | 2012-12-26 | 2013-04-17 | 三一重工股份有限公司 | Crane and control method thereof |
| CN103896154A (en) * | 2012-12-26 | 2014-07-02 | 三一重工股份有限公司 | A crane and a control method thereof |
| CN107214307A (en) * | 2016-03-21 | 2017-09-29 | 新昌县镜岭镇康柳电子元件厂 | Moulding machine is compacted pivoted frame operating speed control device |
| CN111503241A (en) * | 2020-04-23 | 2020-08-07 | 长沙海川自动化设备有限公司 | Pulley for traction system, safety detection equipment and traction system |
| CN113800412A (en) * | 2021-09-27 | 2021-12-17 | 四川建设机械（集团）股份有限公司 | Tower crane mechanism overspeed protection system and method based on PLC |
| CN114432662A (en) * | 2022-01-26 | 2022-05-06 | 嘉兴职业技术学院 | Pull-up trainer |
| CN115180546A (en) * | 2022-06-24 | 2022-10-14 | 厦门市特种设备检验检测院 | Hoisting machinery on-line monitoring device convenient to disassemble and assemble and monitoring method thereof |
-
2011
- 2011-12-15 CN CN 201120526640 patent/CN202614781U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043533A (en) * | 2012-12-26 | 2013-04-17 | 三一重工股份有限公司 | Crane and control method thereof |
| CN103896154A (en) * | 2012-12-26 | 2014-07-02 | 三一重工股份有限公司 | A crane and a control method thereof |
| CN103043533B (en) * | 2012-12-26 | 2015-06-10 | 三一重工股份有限公司 | Crane and control method thereof |
| CN103896154B (en) * | 2012-12-26 | 2016-02-24 | 三一重工股份有限公司 | A kind of hoisting crane and control method thereof |
| CN107214307A (en) * | 2016-03-21 | 2017-09-29 | 新昌县镜岭镇康柳电子元件厂 | Moulding machine is compacted pivoted frame operating speed control device |
| CN111503241A (en) * | 2020-04-23 | 2020-08-07 | 长沙海川自动化设备有限公司 | Pulley for traction system, safety detection equipment and traction system |
| CN111503241B (en) * | 2020-04-23 | 2021-08-24 | 长沙海川自动化设备有限公司 | Pulley for traction system, safety detection equipment and traction system |
| CN113800412A (en) * | 2021-09-27 | 2021-12-17 | 四川建设机械（集团）股份有限公司 | Tower crane mechanism overspeed protection system and method based on PLC |
| CN114432662A (en) * | 2022-01-26 | 2022-05-06 | 嘉兴职业技术学院 | Pull-up trainer |
| CN115180546A (en) * | 2022-06-24 | 2022-10-14 | 厦门市特种设备检验检测院 | Hoisting machinery on-line monitoring device convenient to disassemble and assemble and monitoring method thereof |
| CN115180546B (en) * | 2022-06-24 | 2023-04-14 | 厦门市特种设备检验检测院 | Hoisting machinery on-line monitoring device convenient to disassemble and assemble and monitoring method thereof |
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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: 20121219 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |