CN202766169U - Super angle detection device and crane - Google Patents
Super angle detection device and crane Download PDFInfo
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- CN202766169U CN202766169U CN 201220424655 CN201220424655U CN202766169U CN 202766169 U CN202766169 U CN 202766169U CN 201220424655 CN201220424655 CN 201220424655 CN 201220424655 U CN201220424655 U CN 201220424655U CN 202766169 U CN202766169 U CN 202766169U
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- oil cylinder
- piston rod
- detection device
- surpassed
- angle detection
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Abstract
The utility model discloses a super angle detection device and a crane with the same. The super angle detection device comprises a first detection mechanism connected with a spreading oil cylinder of the super device and used for detecting piston rod displacement of the oil cylinder. The piston rod displacement is used for determining the super angle of the super device. A piston rod displacement detection mechanism is arranged on the spreading oil cylinder, and spreading angle between two masts of the super device is determined by the piston rod displacement. Compared with the prior art, the detection device is easy to install and high in measuring accuracy due to detection mode.
Description
Technical field
The utility model relates to engineering machinery field, has particularly a kind ofly surpassed angle detection device and has had the hoisting crane that this has surpassed angle detection device.
Background technology
Hoisting crane has in engineering construction widely and uses as a kind of construction machinery and equipment.Along with the development of engineering construction, hoisting crane is also to the maximization future development.Generally speaking, the crane arm of goliath is longer, in actual the use, in order to improve the hoisting depth of hoisting crane, usually also connects auxiliary at the end of crane arm.And along with the increase of brachium, the amount of deflection of crane arm in the luffing plane and in the plane of rotation increases, and makes the stressing conditions of crane arm comparatively abominable, and the load-carrying ability of hoisting crane significantly reduces because of the restriction that is subjected to crane arm amount of deflection and bearing capacity.
In order to improve above-mentioned situation, at present, middle hoister in large tonnage usually adopts and sets up super lifting device at crane arm, with the raising performance that hoists.The structure of super lifting device comprises mast 3 ', launches oil cylinder 4 ', amplitude oil cylinder 5 ' and stay cord 2 ' generally as shown in Figure 1.Wherein, an end and the crane arm 1 ' of mast 3 ' are hinged, and the other end is provided with rope winding device.One end of stay cord 2 ' is connected with crane arm 1 ', and the other end is connected with the lifting end of crane arm 1 ' after walking around rope winding device on the mast 3 '.One end of amplitude oil cylinder 5 ' is connected with crane arm 1 ', and the other end is connected with mast 3 ', and by stretching with the angle between the axis of regulating mast 3 ' and crane arm 1 ' of amplitude oil cylinder 5 ', and then weight equalizer is to the moment of flexure of crane arm 1 ' generation.During hoisting heavy, mast 3 ' usually and crane arm 1 ' perpendicular.An end that launches oil cylinder 4 ' is connected with crane arm 1 ', and the other end is connected with mast 3 ', launches the circumferential angle that oil cylinder is used for regulating mast 3 ' and crane arm 1 '.
Generally speaking, the above-mentioned super lifting device of two covers is set usually on the crane arm 1 ', and two cover super lifting devices are along the circumferential distribution of crane arm 1 '.In the super lifting device start-up course, need the expanded angle of two masts in the in real time control two cover super lifting devices identical.At present, the method for measurement of expanded angle generally is that at the coaxial setting angle coder of mast 3 ' and the hinge-point of crane arm 1 ', control setup is regulated the piston rod displacement that launches oil cylinder in real time according to the detected value of two angular encoders.But in practical operation, because the expanded angle to two masts requires higher, so the right alignment at the installation site of required angle coder and mast hinge center can not be above 3 millimeters, but because deformation induced by gravity and the assembly error of super lifting device itself, this setting accuracy is difficult to assurance, and installation error easily damages the coupler of angular encoder, simultaneously, because setting accuracy is difficult to guarantee, also makes angle measurement error larger.
The utility model content
In view of this, the utility model proposes a kind of angle detection device that surpassed, to solve existing detecting device setting accuracy is required the large problem of angular error high and that detect.
An aspect, the utility model provide a kind of angle detection device that surpassed, and are used for super lifting device, comprising: the first testing agency is connected in the expansion oil cylinder of this super lifting device, for detection of the piston rod displacement that launches oil cylinder; The piston rod displacement is used for determining the angle that surpassed of this super lifting device.
Further, in the above-mentioned detection device, the first testing agency comprises: the first guide rail is connected in the outer wall of cylinder block that launches oil cylinder; The first guide rod is arranged in the first guide rail slidably, and the first end of the first guide rod is connected with the piston rod that launches oil cylinder; At least two the first sensor blocks are arranged at the outer wall of cylinder body, and axially evenly distributing along cylinder body; First sensor is arranged at the second end of the first guide rod, for detection of the location information of the first sensor block.
Further, in the above-mentioned detection device, the first guide rail is the first lead ring, and the first guide rod is arranged in the first lead ring slidably.
Further, in the above-mentioned detection device, the first testing agency is the first linear transducer, is connected in the expansion oil cylinder.
Further, above-mentioned detection device also comprises: the second testing agency is connected in the amplitude oil cylinder of super lifting device, for detection of the piston rod end position of amplitude oil cylinder; End position is that the current displacement of piston rod is greater than its specified maximum displacement.
Further, in the above-mentioned detection device, the second testing agency comprises: the second guide rail is connected in the outer wall of cylinder block of the amplitude oil cylinder of super lifting device; The second guide rod is arranged in the second guide rail slidably, and the first end of the second guide rod is connected with the piston rod of amplitude oil cylinder; The second sensor block is arranged at the outer wall of cylinder block of amplitude oil cylinder; The second sensor is arranged at the second end of the second guide rod, is used for detecting the location information of the second sensor block when the piston rod of amplitude oil cylinder is in end position.
Further, in the above-mentioned detection device, the second guide rail is the second lead ring, and the second guide rod is arranged in the second lead ring slidably.
Further, above-mentioned detection dress also comprises: the 3rd sensor block is arranged at the outer wall of cylinder block of amplitude oil cylinder; The 3rd sensor is arranged at the second end of the second guide rod, is used for detecting the location information of the 3rd sensor block when the piston rod of amplitude oil cylinder is in desired location; Desired location is that the current displacement of the piston rod of amplitude oil cylinder equals to set displacement.
Further, in the above-mentioned detection device, the second testing agency is the second linear transducer, is connected in amplitude oil cylinder.
The utility model is by arranging the piston rod displacement detecting mechanism launching oil cylinder, determines the expanded angle between two masts of super lifting device by the piston rod displacement, and compared with prior art, this kind detection mode is easy to install, and survey precision is higher.
On the other hand, the utility model also provides a kind of hoisting crane, comprises super lifting device, is provided with above-mentioned any on the super lifting device and has surpassed angle detection device.
Because having surpassed angle detection device has above-mentioned effect, also has corresponding technique effect so have this hoisting crane that has surpassed angle detection device.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the annexation figure of super lifting device and crane arm in the correlation technique;
Fig. 2 is that the utility model has surpassed angle detection device embodiment, is connected in the schematic diagram of super lifting device;
Fig. 3 is the enlarged drawing of A shown in Figure 2 position;
Fig. 4 is the enlarged drawing of B shown in Figure 2 position;
Fig. 5 is that the utility model has surpassed among the angle detection device embodiment, the annexation schematic diagram of amplitude oil cylinder and crane arm;
Fig. 6 is that the utility model has surpassed among the angle detection device embodiment annexation figure of the second testing agency and amplitude oil cylinder;
Fig. 7 is the enlarged drawing of C position shown in Figure 6;
Fig. 8 is the block diagram of super lifting device shown in Figure 2.
Description of reference numerals:
100 crane arms
110 launch oil cylinder
120 amplitude oil cylinder
130 connecting rods
140 supports
150 first masts
160 second masts
170 hauling ropes
210 first lead rings
220 first guide rods
230 first sensor blocks
240 first sensors
310 second lead rings
320 first guide rods
330 second sensor blocks
340 second sensors
350 the 3rd sensor blocks
360 the 3rd sensors
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Referring to Fig. 2, Fig. 3 and Fig. 5, there is shown the first preferred embodiment that the utility model has surpassed angle detection device.Be applied to super lifting device shown in Figure 2 as example take this detecting device, it is described further.
Referring to Fig. 2, Fig. 8 and in conjunction with correlation technique as can be known, super lifting device generally comprises amplitude oil cylinder 120, launches oil cylinder 110, the first mast 150, the second oil cylinder 160, support 140 and hauling rope 170.Wherein, support 140 is hinged with crane arm 100, and amplitude oil cylinder 120 is connected between support 140 and the crane arm 100; The first mast 150 and the second mast 160 are rotationally connected with respectively the two ends of support 140.Inboard at the first mast 150 and the second mast 160 is connected with respectively connecting rod 130, launches oil cylinder 110 and is connected with two connecting rods 130 simultaneously.One end of hauling rope 170 is connected with crane arm 100, and the other end is connected with the lifting end of crane arm 100 after walking around the rope winding device of the first mast 150 or the second mast 160 movable ends.When amplitude oil cylinder 120 is flexible, can promotes support 140 and rotate relative to crane arm 100, and then regulate angle between two masts and the crane arm.In addition, when expansion oil cylinder 110 stretches, can adjust two expanded angles between the mast.
This detecting device embodiment comprises the first testing agency, is connected on the expansion oil cylinder 110 of this super lifting device, for detection of the piston rod displacement that launches oil cylinder 110; Can determine the angle that surpassed of super lifting device according to this displacement.
The present embodiment is by detecting the piston rod displacement that launches oil cylinder 110, to determine the angle that surpassed between the first mast 150 and the second mast 160, with compare by setting angle sensor between mast and crane arm in the prior art, the displacement measurement method in the present embodiment is easier to realize.
Referring to Fig. 3, there is shown the preferred implementation of the first testing agency.As shown in the figure, the first testing agency comprises the first guide rail, the first guide rod 220, the first sensor block 230 and first sensor 240.Wherein, the first guide rail is connected on the outer wall of cylinder block that launches oil cylinder 110, and the first guide rod 220 is arranged in the first guide rail slidably, and the first end of the first guide rod 220 is connected with the piston rod that launches oil cylinder 110; At least one first sensor block 230 is arranged at the outer wall of cylinder block that launches oil cylinder 110, and axially evenly distributing along cylinder body; First sensor 240 is arranged at the second end of the first guide rod 220, for detection of the location information of the first sensor block 230.
During concrete operations, the first guide rail can select the first lead ring 210, the first lead rings 210 to be connected to outer wall of cylinder block near an end of piston rod, and the first guide rod 220 is arranged in the first lead ring 210 slidably.First sensor 240 can be selected two, and symmetry is installed on the second end of the first guide rod 220.Also can be uniformly distributed in the both sides of the first guide rod 220 corresponding to two first sensors, 240, the first sensor blocks 230.When launching the piston rod slip of oil cylinder 110, drive the first guide rod 220 and slide along the first lead ring 210, first sensor 240 is synchronized with the movement with the first guide rod 220.In the motion process, first sensor 240 can detect the location information of the first sensor block 230 of the first guide rod 220 both sides, according to the position of the first sensor block 230 that detects, can determine the displacement of piston rod, can further determine the expanded angle that surpassed between two masts according to this displacement.Can find out, this kind detecting device is installed on the outer wall that launches oil cylinder, and installation method is simple, is easy to realize.
Need to prove, first sensor 240 also can be selected one, and at this moment, the first sensor block 230 can evenly distribute along a side of the first guide rod 220.
Replacedly, the first testing agency also can be the first linear transducer, is connected to launch can detect the piston rod displacement that launches oil cylinder by the first linear transducer on the oil cylinder.
Preferably, referring to Fig. 4 to Fig. 7, in order to detect the piston rod end position of amplitude oil cylinder, the present embodiment can also comprise the second testing agency, is connected in the amplitude oil cylinder 120 of this super lifting device, for detection of the piston rod end position of amplitude oil cylinder 120.Wherein, end position be the current displacement of piston rod greater than the position of its specified maximum displacement, at this moment, piston rod is in extended state.
As shown in the figure, the second testing agency comprises the second guide rail, the second guide rod 320, the second sensor block 330 and the second sensor 340.Wherein, the second guide rail is connected in the outer wall of cylinder block of the amplitude oil cylinder 120 of this super lifting device; The second guide rod 320 is arranged in the second guide rail slidably, and the first end of the second guide rod 320 is connected with the piston rod of amplitude oil cylinder 120; The second sensor block 330 is arranged at the outer wall of cylinder block of amplitude oil cylinder 120; The second sensor 340 is arranged at the second end of the second guide rod 320, when the piston rod that is used for amplitude oil cylinder 120 is in end position, detects the location information of the second sensor block 330.This position limitation protection can avoid piston rod to be in extended state, has improved the safety performance of super lifting device.
As shown in the figure, the second testing agency can also comprise the 3rd sensor block 350 and the 3rd sensor 360.Wherein, the 3rd sensor block 350 is arranged at the outer wall of cylinder block of amplitude oil cylinder 120; The 3rd sensor 360 is arranged at the second end of the second guide rod 320, is used for detecting the location information of the 3rd sensor block 350 when the piston rod of amplitude oil cylinder is in desired location.Wherein, desired location is the current displacement of piston rod of the amplitude oil cylinder position when equaling to set displacement.
During concrete operations, the second guide rail can select the second lead ring 310, the second lead rings 310 to be connected to the outer wall of cylinder block of amplitude oil cylinder near an end of piston rod, and the second guide rod 320 is arranged in the second lead ring 310 slidably.The second sensor 340 and the 3rd sensor 360 are symmetricly set in the second end of the second guide rod 320, and the second sensor block 330 and the 3rd sensor block 350 are arranged at the both sides of the second guide rod 320.When the piston rod of amplitude oil cylinder 120 slides, can drive the second guide rod 320 and slide, when the second guide rod 320 reached desired location, the 3rd sensor 360 detected the location information of the 3rd sensor block 350, determined that piston rod has moved to desired location.At this moment, if piston rod continues to move forward to end position, the second sensor 340 can detect the second sensor block 330, determines that piston rod has been in extended state, needs protection, and the prompting staff controls amplitude oil cylinder 120 and stops action.
Replacedly, in the present embodiment, the second testing agency also can be the second linear transducer, is connected on the amplitude oil cylinder, detects end position and the desired location that launches cylinder piston rod by the second linear transducer.
As can be seen from the above-described embodiment, the utlity model has following advantage:
1) by the first testing agency being set launching oil cylinder, to detect the piston rod displacement that launches oil cylinder, can determine the expanded angle that surpassed between two masts of super lifting device according to this displacement.Can find out, this detecting device is arranged at the outer wall of cylinder block that launches oil cylinder, be easy to install, and survey precision is higher.
2) by the second testing agency is set in amplitude oil cylinder, whether be in desired location and end position with the piston rod that detects amplitude oil cylinder, provide the hyperextension protection to amplitude oil cylinder.
The utility model also provides a kind of hoisting crane, comprises super lifting device, is provided with above-mentioned any on this super lifting device and has surpassed angle detection device.The concrete structure that has surpassed angle detection device gets final product with reference to above-mentioned explanation, and the utility model does not repeat them here.
Because having surpassed angle detection device has above-mentioned effect, also has corresponding technique effect so have the super lifting device of this detecting device.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. one kind has surpassed angle detection device, is used for super lifting device, it is characterized in that, comprising:
The first testing agency is connected in the expansion oil cylinder (110) of this super lifting device, for detection of the piston rod displacement that launches oil cylinder (110); Described piston rod displacement is used for determining the angle that surpassed of this super lifting device.
2. the angle detection device that surpassed according to claim 1 is characterized in that, described the first testing agency comprises:
The first guide rail is connected in the outer wall of cylinder block of described expansion oil cylinder (110);
The first guide rod (220) is arranged in described the first guide rail slidably, and the first end of described the first guide rod (220) is connected with the piston rod of described expansion oil cylinder (110);
At least one first sensor block (230) is arranged at the outer wall of described cylinder body, and axially evenly distributing along described cylinder body;
First sensor (240) is arranged at the second end of described the first guide rod (220), for detection of the location information of described the first sensor block (230).
3. the angle detection device that surpassed according to claim 2 is characterized in that,
Described the first guide rail is the first lead ring (210), and described the first guide rod (220) is arranged in described the first lead ring (210) slidably.
4. the angle detection device that surpassed according to claim 1 is characterized in that,
Described the first testing agency is the first linear transducer, is connected in described expansion oil cylinder (110).
5. each described angle detection device that surpassed in 4 according to claim 1 is characterized in that, also comprises:
The second testing agency is connected in the amplitude oil cylinder (120) of super lifting device, for detection of the piston rod end position of described amplitude oil cylinder (120); Described end position is that the current displacement of piston rod is greater than its specified maximum displacement.
6. the angle detection device that surpassed according to claim 5 is characterized in that, described the second testing agency comprises:
The second guide rail is connected in the outer wall of cylinder block of the amplitude oil cylinder (120) of super lifting device;
The second guide rod (320) is arranged in described the second guide rail slidably, and the first end of described the second guide rod (320) is connected with the piston rod of described amplitude oil cylinder (120);
The second sensor block (330) is arranged at the outer wall of cylinder block of described amplitude oil cylinder (120);
The second sensor (340) is arranged at the second end of described the second guide rod (320), is used for detecting the location information of described the second sensor block (330) when the piston rod of described amplitude oil cylinder (120) is in end position.
7. the angle detection device that surpassed according to claim 6 is characterized in that,
Described the second guide rail is the second lead ring (310), and described the second guide rod (320) is arranged in described the second lead ring (310) slidably.
8. the angle detection device that surpassed according to claim 6 is characterized in that, described the second testing agency also comprises:
The 3rd sensor block (350) is arranged at the outer wall of cylinder block of described amplitude oil cylinder (120);
The 3rd sensor (360) is arranged at the second end of described the second guide rod (320), is used for detecting the location information of described the 3rd sensor block (350) when the piston rod of described amplitude oil cylinder is in desired location; Described desired location is that the current displacement of the piston rod of amplitude oil cylinder equals to set displacement.
9. the angle detection device that surpassed according to claim 5 is characterized in that, described the second testing agency is the second linear transducer, is connected in described amplitude oil cylinder (120).
10. a hoisting crane comprises super lifting device, it is characterized in that, is provided with each described angle detection device that surpassed in the claim 1 to 9 on the described super lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424655 CN202766169U (en) | 2012-08-24 | 2012-08-24 | Super angle detection device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424655 CN202766169U (en) | 2012-08-24 | 2012-08-24 | Super angle detection device and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202766169U true CN202766169U (en) | 2013-03-06 |
Family
ID=47772758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424655 Expired - Fee Related CN202766169U (en) | 2012-08-24 | 2012-08-24 | Super angle detection device and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202766169U (en) |
-
2012
- 2012-08-24 CN CN 201220424655 patent/CN202766169U/en not_active Expired - Fee Related
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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: 20130306 Termination date: 20180824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |