CN202814383U - Rotary table rotation angle detection device and aerial work platform equipment - Google Patents
Rotary table rotation angle detection device and aerial work platform equipment Download PDFInfo
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- CN202814383U CN202814383U CN201220448264.XU CN201220448264U CN202814383U CN 202814383 U CN202814383 U CN 202814383U CN 201220448264 U CN201220448264 U CN 201220448264U CN 202814383 U CN202814383 U CN 202814383U
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Abstract
The present utility model relates to a rotary table rotation angle detection device and aerial work platform equipment. The rotary table rotation angle detection device comprises an angle sensor, a first detection gear and a second detection gear, the first detection gear is fixed on a central rotation body, a detection rotation shaft is fixed on a center of the first detection gear, axes of the first detection gear and the detection rotation shaft are all coincident with an axis of the central rotation body, the second detection gear is engaged with the first detection gear, a central shaft of the angle sensor is fixed on a center of the second detection gear, and a shell of the detection rotation shaft and the angle sensor are arranged on a rotary table through a fixing plate. The angle sensor and the second detection gear are always rotated around the detection rotation shaft in a same distance, an engaged gap between the detection gears is remained unchanged, no engaging stress is generated, and a problem that angle detection signals are not continuous and not stable can be avoided.
Description
Technical field
The utility model relates to engineering machinery field, relates in particular to a kind of rotation of rotary table angle detection device and aerial work platform equipment.
Background technology
Existing huge aerial working platform vehicle (referring to Fig. 1) can be realized the work high above the ground of nearly hundred meters operation height, and the weight of its jib is very large, and accounts for the car load larger proportion.Therefore need the rotation of rotary table pick-up unit to detect in real time the angle of rotation of rotary table, be used for controlling the jib action of car load and carrying out safety guarantee, this detection has very important meaning to action continuity, stability and the reliability of car load.
As shown in Figure 2, be installed in structural representation on the aerial working platform vehicle for existing rotation of rotary table pick-up unit.Wherein detection of gear 6a is bolted on the center steering body 8a, the center of detection of gear 3a is fixed wtih the central shaft of angular transducer 5a, detection of gear 6a and detection of gear 3a engagement, the shell of angular transducer 5a is fixed on the installation of sensors plate 2a, and installation of sensors plate 2a is fixed on the turntable 7a by fixed head 1a.Detection of gear 3a integral body can be rotated with respect to center steering body 8a together along with turntable 7a, simultaneously when turntable 7a turns round, detection of gear 6a is because detection of gear 3a and its meshing relation, also can rotate with respect to the axis of self, so that the central shaft of angular transducer 5a changes with respect to shell generation angle, can measure the angle that turntable rotates thus.
This pick-up unit requires the assembling right alignment of center steering body and turntable higher, also is difficult to realize that this just may cause two detection of gear not mesh sometimes, and it is excessive also might to mesh stress, and then affects the measuring accuracy of angular transducer.In addition, fixed head in the pick-up unit is bolted on turntable, when the jib that is connected with turntable is stretched with full exhibition entirely, because jib is long and higher, whole jib can produce lateral bending distortion and forward flexural deformation, thereby causes the distortion of turntable integral inclination, and turntable is when deforming, larger stress acts on the central shaft of angular transducer by detection of gear, and then damages angular transducer.
Therefore, existing rotation of rotary table pick-up unit is subject to the impact of turntable and center steering body installation accuracy and turntable distortion easily, the discontinuous, unstable of signal may appear, sometimes the situation of also can the angle of arrival sensor being damaged by larger distortional stress causes to be difficult to obtain stable and accurate rotation of rotary table testing result.
The utility model content
The purpose of this utility model is to propose a kind of rotation of rotary table angle detection device and aerial work platform equipment, can realize the detection of stable and accurate rotation of rotary table angle.
For achieving the above object, the utility model provides a kind of rotation of rotary table angle detection device, be used for measuring turntable with respect to the rotational angle of center steering body, comprise angular transducer, wherein also comprise the first detection of gear and the second detection of gear, described the first detection of gear is fixed on the described center steering body, the center of described the first detection of gear is fixed with the detection revolving shaft, and described the first detection of gear and the axis that detects revolving shaft all with the dead in line of described center steering body, described the second detection of gear and the engagement of described the first detection of gear, and the central shaft of described angular transducer is fixed on the center of described the second detection of gear, and the shell of described detection revolving shaft and described angular transducer is installed on the described turntable by a fixed head.
Further, described the first detection of gear is prolonged the Axis Extension direction and is comprised fixed part, support portion and engaging piece, described fixed part is bolted on the described center steering body by a plurality of, described engaging piece and the engagement of described the second detection of gear, described support zone is between described fixed part and engaging piece, the center of described fixed part, support portion and engaging piece is provided with the axis hole that passes for described detection revolving shaft, the bottom of described detection revolving shaft is provided with radius greater than the step of described axis hole, and described step is bolted on the described fixed part by a plurality of.
Further, also be provided with axle sleeve on described detection revolving shaft, described axle sleeve is arranged between described the first detection of gear and the described fixed head.
Further, the top of described detection revolving shaft also is equipped with lubricator cup, realizes lubricating between described detection revolving shaft and the described fixed head.
Further, an end that is installed in described turntable of described fixed head has slotted hole, on described turntable, also be fixed with a bearing pin of stirring that is located in the described slotted hole, describedly stir the footpath that bearing pin can prolong described center steering body and upwards in described slotted hole, slide.
Further, described the first detection of gear is by on a plurality of brushes that are bolted to described center steering body.
Further, described the second detection of gear is connected by the elasticity pivot pin with the central shaft of described angular transducer.
For achieving the above object, the utility model provides a kind of aerial work platform equipment, comprises center steering body and the turntable that rotates with respect to described center steering body, wherein, also comprises aforesaid rotation of rotary table angle detection device.
Based on technique scheme, the utility model embodiment is equipped with detection revolving shaft with its dead in line in the first detection of gear, this detection revolving shaft is installed on the turntable together with the angular transducer plate that together is fixed, this structure can make angular transducer rotate around detecting revolving shaft with identical distance all the time with the second detection of gear, and the back lash between the first detection of gear and the second detection of gear also just remains unchanged always, and do not produce engagement stress, can discontinuous and unsettled problem not appear the angle of arrival detection signal so just; In another embodiment, fixed head has slotted hole at turntable one end, stir bearing pin and be equipped with in the slotted hole, can upwards in slotted hole, slide along the footpath of center steering body, like this when jib and turntable inclination and distortion, turntable can spur to be stirred bearing pin and slides with respect to fixed head, but can directly not drive the angular transducer that fixed head connects, thus the damage of having avoided stress that angular transducer is caused.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, 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 structural representation of existing huge aerial working platform vehicle.
Fig. 2 is that existing rotation of rotary table pick-up unit is installed in the structural representation on the aerial working platform vehicle.
Fig. 3 is the structural representation of an embodiment of the utility model rotation of rotary table angle detection device.
Fig. 4 is the synoptic diagram of the depression angle of Fig. 3 embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 3, be the structural representation of an embodiment of the utility model rotation of rotary table angle detection device.Synoptic diagram with reference to figure 3 and depression angle shown in Figure 4, can see that the turntable of be used for measuring in the present embodiment comprises angular transducer 7, the first detection of gear 1 and the second detection of gear 10 with respect to the rotation of rotary table angle detection device of the rotational angle of center steering body, wherein, the first detection of gear 1 is fixed on the center steering body 11, and the center of the first detection of gear 1 is fixed with detects revolving shaft 2.The first detection of gear 1 and the axis that detects revolving shaft 2 all with the dead in line of center steering body 11.
The second detection of gear 10 and 1 engagement of the first detection of gear, the central shaft of angular transducer 7 is fixed on the center of the second detection of gear 10, the axis of this central shaft also with the dead in line of the second detection of gear, the second detection of gear 10 can be connected by the elasticity pivot pin with the central shaft of angular transducer 7.The shell that detects revolving shaft 2 and angular transducer 7 is installed on the turntable 9 by a fixed head 8.One protective cover 6 can also be set on the shell of angular transducer 7, angular transducer 7 is protected.
Existing rotation of rotary table pick-up unit in Fig. 2, the end that can see angular transducer 7 is installed on the turntable 12, the other end then is connected to and detects on the revolving shaft 2, this is just so that turntable 12 when rotating with respect to center steering body 11, angular transducer 7 and connected the second detection of gear 10 all the time with identical distance (this distance be the axis that detects revolving shaft with the axis of the second detection of gear between vertical range) around detecting revolving shaft 2 rotations, so that the back lash of the first detection of gear and the second detection of gear remains unchanged, thereby do not form engagement stress, just can not cause the discontinuous and unsettled phenomenon of angle detection signal yet.
For the installation and measuring revolving shaft, the first detection of gear 1 is not the gear of general structure, comprise fixed part A, support portion B and three parts of engaging piece C but prolong the Axis Extension direction, wherein fixed part A is bolted on the center steering body 11 by a plurality of, specifically can be fixed on the brush of center steering body 11, engaging piece C and 10 engagements of the second detection of gear, support portion B is between fixed part A and engaging piece C.The center of fixed part A, support portion B and engaging piece C is provided with the axis hole that passes for detecting revolving shaft 2, and the bottom of detecting revolving shaft 2 is provided with radius greater than the step D of axis hole, and step D is bolted on the fixed part A by a plurality of.The compact conformation of this detection of gear, weight are also lighter.
In Fig. 3 embodiment, can also be provided for protecting the axle sleeve 3 that detects revolving shaft 2 at detection revolving shaft 2, this axle sleeve 3 is arranged between the first detection of gear 1 and the fixed head 8.Fixed head 8 is fixed on the first detection of gear 1 by set bolt 4 and packing ring etc.
The hard grind wiping does not occur in the position in order to ensure fixed head 8 and connecting bushing 3, can also lubricator cup 5 be installed on the top of detecting revolving shaft 2, realizes lubricating between detection revolving shaft 2 and the fixed head 8.
Referring to Fig. 4, can see that an end that is installed in turntable 12 of fixed head 8 has slotted hole 13, on turntable 12, also be fixed with one and be located in and stir bearing pin 9 in the slotted hole 13, this stirs footpath that bearing pin 9 can Yanzhong heart solid of revolution 11 upwards in slotted hole 13 interior slips.So just so that have certain degree of freedom between turntable and the rotation of rotary table angle detection device, when jib and turntable run-off the straight distortion, turntable can spur to be stirred bearing pin and slides with respect to fixed head, but can directly not drive the angular transducer that fixed head connects, thereby the damage of having avoided stress that angular transducer is caused.
Illustrated each the utility model rotation of rotary table angle detection device embodiment from the front, these rotation of rotary table angle detection devices all can realize the detection of stable and accurate rotation of rotary table angle.Accordingly, the utility model rotation of rotary table angle detection device embodiment can be widely used in the various engineering machinery that need the control of rotation of rotary table angle, especially be fit to be applied in the aerial work platform equipment, this aerial work platform equipment comprises center steering body and the turntable that rotates with respect to the center steering body, can realize the detection of stable and accurate rotation of rotary table angle by aforesaid rotation of rotary table angle detection device is installed.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (8)
1. rotation of rotary table angle detection device, be used for measuring turntable with respect to the rotational angle of center steering body, comprise angular transducer, it is characterized in that, also comprise the first detection of gear and the second detection of gear, described the first detection of gear is fixed on the described center steering body, the center of described the first detection of gear is fixed with the detection revolving shaft, and described the first detection of gear and the axis that detects revolving shaft all with the dead in line of described center steering body, described the second detection of gear and the engagement of described the first detection of gear, and the central shaft of described angular transducer is fixed on the center of described the second detection of gear, and the shell of described detection revolving shaft and described angular transducer is installed on the described turntable by a fixed head.
2. rotation of rotary table angle detection device according to claim 1, it is characterized in that, described the first detection of gear is prolonged the Axis Extension direction and is comprised fixed part, support portion and engaging piece, described fixed part is bolted on the described center steering body by a plurality of, described engaging piece and the engagement of described the second detection of gear, described support zone is between described fixed part and engaging piece, described fixed part, the center of support portion and engaging piece is provided with the axis hole that passes for described detection revolving shaft, the bottom of described detection revolving shaft is provided with radius greater than the step of described axis hole, and described step is bolted on the described fixed part by a plurality of.
3. rotation of rotary table angle detection device according to claim 2 is characterized in that, also is provided with axle sleeve on described detection revolving shaft, and described axle sleeve is arranged between described the first detection of gear and the described fixed head.
4. rotation of rotary table angle detection device according to claim 2 is characterized in that, the top of described detection revolving shaft also is equipped with lubricator cup, realizes lubricating between described detection revolving shaft and the described fixed head.
5. rotation of rotary table angle detection device according to claim 1, it is characterized in that, an end that is installed in described turntable of described fixed head has slotted hole, on described turntable, also be fixed with a bearing pin of stirring that is located in the described slotted hole, describedly stir the footpath that bearing pin can prolong described center steering body and upwards in described slotted hole, slide.
6. rotation of rotary table angle detection device according to claim 1 is characterized in that, described the first detection of gear is by on a plurality of brushes that are bolted to described center steering body.
7. rotation of rotary table angle detection device according to claim 1 is characterized in that, described the second detection of gear is connected by the elasticity pivot pin with the central shaft of described angular transducer.
8. an aerial work platform equipment comprises center steering body and the turntable that rotates with respect to described center steering body, it is characterized in that, also comprises the arbitrary described rotation of rotary table angle detection device of claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220448264.XU CN202814383U (en) | 2012-09-05 | 2012-09-05 | Rotary table rotation angle detection device and aerial work platform equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220448264.XU CN202814383U (en) | 2012-09-05 | 2012-09-05 | Rotary table rotation angle detection device and aerial work platform equipment |
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| CN202814383U true CN202814383U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220448264.XU Expired - Lifetime CN202814383U (en) | 2012-09-05 | 2012-09-05 | Rotary table rotation angle detection device and aerial work platform equipment |
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| CN (1) | CN202814383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840848A (en) * | 2012-09-05 | 2012-12-26 | 徐州重型机械有限公司 | Detection device for revolving angle of rotary table and aerial operation platform equipment |
| CN103471556A (en) * | 2013-08-22 | 2013-12-25 | 恒天九五重工有限公司 | Device for measuring rotation angle for return driving during loading of rotary drilling rig |
| CN112880709A (en) * | 2021-01-14 | 2021-06-01 | 清华大学 | Unmanned excavator rotating platform angle measurement system |
-
2012
- 2012-09-05 CN CN201220448264.XU patent/CN202814383U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840848A (en) * | 2012-09-05 | 2012-12-26 | 徐州重型机械有限公司 | Detection device for revolving angle of rotary table and aerial operation platform equipment |
| CN102840848B (en) * | 2012-09-05 | 2015-01-21 | 徐州重型机械有限公司 | Detection device for revolving angle of rotary table and aerial operation platform equipment |
| CN103471556A (en) * | 2013-08-22 | 2013-12-25 | 恒天九五重工有限公司 | Device for measuring rotation angle for return driving during loading of rotary drilling rig |
| CN103471556B (en) * | 2013-08-22 | 2016-08-17 | 恒天九五重工有限公司 | Rotary drilling rig upper-part rotation driving rotating angle measurement apparatus |
| CN112880709A (en) * | 2021-01-14 | 2021-06-01 | 清华大学 | Unmanned excavator rotating platform angle measurement system |
| CN112880709B (en) * | 2021-01-14 | 2022-05-06 | 清华大学 | Unmanned excavator rotating platform angle measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170124 Address after: 221004 Jiangsu Province, Xuzhou City Yunlong District No. 165 Patentee after: XCMG FIRE-FIGHTING SAFETY EQUIPMENT Co.,Ltd. Address before: 221004 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |