CN103076127B - Pin roll detection device and engineering machine provided with same - Google Patents
Pin roll detection device and engineering machine provided with same Download PDFInfo
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- CN103076127B CN103076127B CN201210584443.0A CN201210584443A CN103076127B CN 103076127 B CN103076127 B CN 103076127B CN 201210584443 A CN201210584443 A CN 201210584443A CN 103076127 B CN103076127 B CN 103076127B
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- bearing pin
- spacing hole
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Abstract
The invention provides a pin roll detection device used for detecting the stress of a pulley pin roll. The pin roll detection device comprises a bracket, a pulley, a pin roll sensor and a locating component, wherein the pulley is rotatably connected with the pin roll sensor; two ends of the pin roll sensor are rotatably connected with the bracket; the locating component is provided with a first connecting end, a second connecting end, and a third connecting end; the second connecting end and the third connecting end are connected with the first connecting end; the second connecting end is provided with a first spacing hole; the third connecting end is respectively provided with a second spacing hole; the first connecting end and the end part of the pin roll sensor are fixed; the first spacing hole and the second spacing hole are positioned on a same plane with the sliding chute of the pulley; and the first spacing hole and the second spacing hole are symmetrically arranged on two sides of the stress central line of the pulley. The pin roll detection device can be used for accurately detecting the stress of the pulley pin roll. In addition, the invention further provides an engineering machine provided with the pin roll detection device.
Description
Technical field
The present invention relates to mechanics detection technique, be specifically related to a kind of for detection of the stressed bearing pin pick-up unit of pulley pin shaft; In addition, the invention still further relates to the engineering machinery with this bearing pin pick-up unit.
Background technology
At present, bearing pin sensor weighing, overload protection, the technical field application such as anti-tipping be general, the solution that it gives Related Technical Issues, provides convenience.
Conventionally, bearing pin sensor comprises elasticity bearing pin and senser element, and elasticity bearing pin boring also forms chamber, as required senser element is arranged on to the relevant position in chamber.In use, the bearing pin of bearing pin sensor is directly arranged on detected position, substitutes the function of original parts; With bearing pin sensor in pulley, be applied as example, as shown in Figure 1, pulley 21 is rotatably arranged at by rolling bearing 22 on the bearing pin of bearing pin sensor 23, and the two ends of bearing pin are fixed in frame 25 by clamp 24 respectively.In the time that pulley is stressed, bearing pin can produce distortion, and the foil gauge (or other sensing elements) of being located at bearing pin internal chamber produces feedback signal according to the distortion of bearing pin, and operating personnel obtain the stressing conditions of bearing pin according to feedback signal.Because being set directly in bearing pin sensor on detected position, very easy to use, its use is also more and more extensive.
In the time that bearing pin sensor 23 is installed on pulley, what conventionally can first calculate bearing pin is subject to force direction (direction as shown in F in Fig. 2), then sets sensing element according to the above-mentioned force direction that is subject in bearing pin internal chamber.Therefore, bearing pin sensor 23 has suitable precision conventionally in the time detecting the above-mentioned power F that is subject to force direction.But, in actual use, bearing pin not stablized by force direction constant, in the time that bearing pin is changed by force direction (as shown in F1 in Fig. 2), the accuracy of detection of bearing pin sensor obviously reduces, and even occurs the situation of testing result without engineering use value.
Therefore, how can accurately detect the stressing conditions of pulley pin shaft, be still those skilled in the art's technical matters urgently to be resolved hurrily.
Summary of the invention
In view of this, the present invention proposes a kind of bearing pin pick-up unit, utilizes this bearing pin pick-up unit can accurately detect the stressing conditions of pulley pin shaft.In addition, the present invention also proposes a kind of engineering machinery with this bearing pin pick-up unit.
On the one hand, the invention provides a kind of bearing pin pick-up unit, stressed for detection of pulley pin shaft, comprises support, pulley, bearing pin sensor and positioning element; Described pulley and bearing pin sensor are rotatably connected, and two ends and the bracket-rotatable of described bearing pin sensor are dynamically connected; Described positioning element is provided with the first link, the second link and the 3rd link, and the second link, the 3rd link are all connected with the first link; Described the second link is provided with the first spacing hole, and the 3rd link is respectively equipped with the second spacing hole; The end of described the first link and bearing pin sensor is fixed; The chute of described the first spacing hole, the second spacing hole and pulley is in the same plane, and the first spacing hole and the second spacing hole are symmetrically set in the both sides of pulley center of effort line.
Further, the central axis of described the first spacing hole and the second spacing hole is parallel to each other.
Further, between the second link and the 3rd link, be connected by first connecting rod; The first link is connected in the centre of first connecting rod by the second connecting link, and first connecting rod is vertical with second connecting rod arranges.
Further, described support is provided with limiting component, for limiting the slewing area of described positioning element with respect to support.
Further, the distance between described the first spacing hole and the second spacing hole equates with the internal diameter of pulley.
Further, described bearing pin sensor is dynamically connected by sliding bearing and described bracket-rotatable.
The bearing pin pick-up unit that the present invention proposes, by positioning element being set and bearing pin sensor and bracket-rotatable being dynamically connected, makes the force direction that is subject to of bearing pin sensor keep constant, thereby guarantees that bearing pin sensor can accurately detect the stressed of pulley pin shaft.When this bearing pin pick-up unit work, rope (or drag-line) passes chute and second spacing hole of the first spacing hole, pulley successively, now, the rope stretching point of bearing pin sensor, pulley and enter angular relationship between the rope point three parts that are positioned and limit, when rope stretching point or when entering rope point and changing, positioning element can synchronously rotate by drive pin axle sensor, and then it is constant to guarantee that drag-line passes to the direction of power of bearing pin sensor, thereby can ensure that bearing pin sensor can accurately detect the stressed of pulley pin shaft.
On the other hand, the present invention also proposes a kind of engineering machinery, comprises engineering machinery body, hoisting mechanism and above-mentioned bearing pin pick-up unit; The drag-line of described hoisting mechanism passes chute and second spacing hole of described the first spacing hole, pulley successively; Described support is fixedly connected with engineering machinery body.
By above-mentioned bearing pin pick-up unit is set, the pulley pin shaft that this project machinery obtains be subject to force information more accurately, more reliable, this can for engineering machinery safely, stably construction provides support.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation that is provided with the pulley of bearing pin sensor in correlation technique;
Fig. 2 is that bearing pin sensor detects the schematic diagram of bearing pin when stressed;
Fig. 3 is the bearing pin pick-up unit of the specific embodiment of the invention structural representation under application scenarios;
Fig. 4 is the cut-open view of A-A direction in Fig. 3;
Fig. 5 is the bearing pin pick-up unit of the specific embodiment of the invention schematic diagram under the first state;
Fig. 6 is the bearing pin pick-up unit of the specific embodiment of the invention schematic diagram under the second state.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.Be elaborated below in conjunction with 3 to 6 pairs of specific embodiments of the invention of accompanying drawing.
For accurately detecting the stressed of pulley pin shaft, the specific embodiment of the invention proposes a kind of bearing pin pick-up unit, stressed for detection of pulley 2 bearing pins, and this bearing pin pick-up unit comprises support 1, pulley 2, bearing pin sensor 11 and positioning element 3; Pulley 2 is rotatably connected with bearing pin sensor 11, and the two ends of bearing pin sensor 11 and support 1 are rotatably connected; Positioning element 3 is provided with the first link 5, the second link 6 and the 3rd link 7, the second links 6, the 3rd link 7 and is all connected with the first link 5; The second link 6 is provided with the first spacing hole 8, the three links 7 and is respectively equipped with the second spacing hole 9; The first link 5 is fixed with the end of bearing pin sensor 11; The first spacing hole 8, the second spacing hole 9 are in the same plane with the chute of pulley 2, and the first spacing hole 8 and the second spacing hole 9 are symmetrically set in the both sides of the pulley 2 line L1 of center of effort.
This bearing pin pick-up unit, by positioning element 3 being set and bearing pin sensor 11 and support 1 being rotatably connected, makes the force direction that is subject to of bearing pin sensor 11 keep constant, thereby guarantees that bearing pin sensor 11 can accurately detect the stressed of pulley 2 bearing pins.When this bearing pin pick-up unit work, rope (or drag-line) 10 passes chute and second spacing hole 9 of the first spacing hole 8, pulley 2 successively; In the time that the direction of rope 10 changes, rope 10 orders about bearing pin sensor 11 by positioning element 3 and keeps synchronizeing rotation with rope 10, and then the direction that makes rope 10 be passed to the power on bearing pin sensor remains unchanged; As shown in Figure 5 and Figure 6, Fig. 6 is that rope in Fig. 5 obtains after with respect to support deflection certain angle, because bearing pin sensor 11 has kept synchronizeing rotation with rope 10, power F in Fig. 6 with respect to the direction of bearing pin sensor 11 with in Fig. 5, look consistent, and in the situation that being subject to force direction for a change, the testing result of normal condition lower bearing pin sensor 11 should be reliable.Therefore, this bearing pin pick-up unit can accurately detect the stressed of pulley pin shaft.
In technique scheme, the form that the first spacing hole 8 and the second spacing hole 9 can be arranged to be parallel to each other the i.e. central axis of the first spacing hole 8 and the second spacing hole 9 is parallel to each other, and can also make the distance L between the first spacing hole 8 and the second spacing hole 9 equate with the inner diameter D of pulley 2.Like this, rope 10 is about the half of pulley 2 whole arc length around the length on pulley 2 after through spacing hole 8 and the second spacing hole 9, thereby ensures that pulley 2 is tightr with coordinating of rope 10.
In technique scheme, between the second link 6 and the 3rd link 7, be connected by first connecting rod 13; The first link 5 is connected in the centre of first connecting rod 13 by second connecting rod 14, and first connecting rod 13 setting vertical with second connecting rod 14.By first connecting rod 13 and second connecting rod 14 are set, second connecting rod 14 vertically connects first connecting rod 13 center, makes the power transmission better effects if of positioning element 3.
In technique scheme, support 1 is provided with limiting component 4, for limiting the slewing area of positioning element 3 with respect to support 1; The occurrence of the limited field of limiting component 4 to positioning element 3 can be determined according to concrete application scenario.By limiting component 4 is set, can avoid rope 10 and slewing area excessive.In addition, after the long-time use of this bearing pin pick-up unit, in the situation that the first spacing hole 8 and the second spacing hole 9 wear and tear, gap between rope 10 and the first spacing hole 8 and the second spacing hole 9 can be more and more large, finally can make bearing pin sensor 11 not exclusively synchronize with the rotation of rope 10, thereby have influence on the accuracy in detection of bearing pin sensor 11; By limiting component 4 is set, can periodically proofread and correct bearing pin pick-up unit, concrete trimming process is: positioning element 3 is turned to one of definite extreme position of limiting component 4, then, adjust the position of rope 10 in the first spacing hole 8 and the second spacing hole 9.
In addition, bearing pin sensor 11 can be rotatably connected by sliding bearing 12 and support 1, can effectively reduce like this friction between bearing pin sensor 11 and support 1.
On the other hand, the specific embodiment of the invention also proposes a kind of engineering machinery, comprises engineering machinery body, hoisting mechanism and above-mentioned bearing pin pick-up unit; The drag-line 10 of hoisting mechanism passes chute and second spacing hole 9 of the first spacing hole 8, pulley 2 successively; Support 1 is fixedly connected with engineering machinery body.By above-mentioned bearing pin pick-up unit is set, the pulley pin shaft that this project machinery obtains be subject to force information more accurately, more reliable, this can for engineering machinery safely, stably construction provides support.
This project machinery is specifically as follows hoisting machinery.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a bearing pin pick-up unit, stressed for detection of pulley (2) bearing pin, is characterized in that, comprises support (1), pulley (2), bearing pin sensor (11) and positioning element (3); Described pulley (2) is rotatably connected with bearing pin sensor (11), and the two ends of described bearing pin sensor (11) and support (1) are rotatably connected; Described positioning element (3) is provided with the first link (5), the second link (6) and the 3rd link (7), and the second link (6), the 3rd link (7) are all connected with the first link (5); Described the second link (6) is provided with the first spacing hole (8), and the 3rd link (7) is provided with the second spacing hole (9); Described the first link (5) is fixed with the end of bearing pin sensor (11); Described the first spacing hole (8), the second spacing hole (9) are in the same plane with the chute of described pulley (2), and the first spacing hole (8) and the second spacing hole (9) are symmetrically set in the both sides of pulley (2) center of effort's line (L1).
2. bearing pin pick-up unit according to claim 1, is characterized in that, described the first spacing hole (8) is parallel to each other with the central axis of the second spacing hole (9).
3. bearing pin pick-up unit according to claim 1, is characterized in that, between the second link (6) and the 3rd link (7), is connected by first connecting rod (13); The first link (5) is connected in the centre of first connecting rod (13) by second connecting rod (14), and first connecting rod (13) setting vertical with second connecting rod (14).
4. bearing pin pick-up unit according to claim 1, is characterized in that, described support (1) is provided with limiting component (4), for limiting the slewing area of described positioning element (3) with respect to support (1).
5. bearing pin pick-up unit according to claim 2, is characterized in that, the distance (L) between described the first spacing hole (8) and the second spacing hole (9) equates with the internal diameter (D) of pulley (2).
6. according to the bearing pin pick-up unit described in claim 1 to 5 any one, it is characterized in that, described bearing pin sensor (11) is rotatably connected by sliding bearing (12) and described support (1).
7. an engineering machinery, comprises engineering machinery body and hoisting mechanism, it is characterized in that, also comprises the bearing pin pick-up unit described in claim 1 to 6 any one; The drag-line (10) of described hoisting mechanism passes chute and second spacing hole (9) of described the first spacing hole (8), pulley (2) successively; Described support (1) is fixedly connected with engineering machinery body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584443.0A CN103076127B (en) | 2012-12-28 | 2012-12-28 | Pin roll detection device and engineering machine provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584443.0A CN103076127B (en) | 2012-12-28 | 2012-12-28 | Pin roll detection device and engineering machine provided with same |
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| Publication Number | Publication Date |
|---|---|
| CN103076127A CN103076127A (en) | 2013-05-01 |
| CN103076127B true CN103076127B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210584443.0A Expired - Fee Related CN103076127B (en) | 2012-12-28 | 2012-12-28 | Pin roll detection device and engineering machine provided with same |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674380A (en) * | 2013-12-04 | 2014-03-26 | 国家电网公司 | Hinge pin tensile test device |
| CN105157901B (en) * | 2015-09-06 | 2017-11-14 | 中国石油大学(北京) | A kind of reducing drilling tool internal thread automatic detection device |
| CN105460788A (en) * | 2016-01-18 | 2016-04-06 | 中船第九设计研究院工程有限公司 | Pulley weighing device |
| CN107091708A (en) * | 2017-04-27 | 2017-08-25 | 武汉船用机械有限责任公司 | A kind of chock that function is detected with tension force |
| CN108844666B (en) * | 2018-05-14 | 2023-10-24 | 南京农业大学 | Tractor hangs force measurement device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0611959A2 (en) * | 1993-02-15 | 1994-08-24 | Japan Electronics Industry, Ltd. | Electrical circuit for a wheel-acting force measuring device |
| US5723792A (en) * | 1994-09-14 | 1998-03-03 | Japan Electronics Industry, Limited | Stress composite sensor and stress measuring device using the same for structure |
| CN2557504Y (en) * | 2002-05-31 | 2003-06-25 | 吴红龙 | Yoke board type electronic balance for crane pulley |
| CN201206086Y (en) * | 2008-01-02 | 2009-03-11 | 浙江省建设机械有限公司 | Lifting limiter for crane |
| CN201495038U (en) * | 2009-09-07 | 2010-06-02 | 廊坊凯博建设机械科技有限公司 | Movable arm amplitude tower type hoisting machine elevating capacity checking device |
| CN202360080U (en) * | 2011-08-22 | 2012-08-01 | 徐州徐工基础工程机械有限公司 | Drilling rod carrying monitoring system of rotary drilling rig |
| CN202481970U (en) * | 2011-12-23 | 2012-10-10 | 杭州卡炫电气有限公司 | Load lifting limiter for tower crane |
-
2012
- 2012-12-28 CN CN201210584443.0A patent/CN103076127B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0611959A2 (en) * | 1993-02-15 | 1994-08-24 | Japan Electronics Industry, Ltd. | Electrical circuit for a wheel-acting force measuring device |
| US5723792A (en) * | 1994-09-14 | 1998-03-03 | Japan Electronics Industry, Limited | Stress composite sensor and stress measuring device using the same for structure |
| CN2557504Y (en) * | 2002-05-31 | 2003-06-25 | 吴红龙 | Yoke board type electronic balance for crane pulley |
| CN201206086Y (en) * | 2008-01-02 | 2009-03-11 | 浙江省建设机械有限公司 | Lifting limiter for crane |
| CN201495038U (en) * | 2009-09-07 | 2010-06-02 | 廊坊凯博建设机械科技有限公司 | Movable arm amplitude tower type hoisting machine elevating capacity checking device |
| CN202360080U (en) * | 2011-08-22 | 2012-08-01 | 徐州徐工基础工程机械有限公司 | Drilling rod carrying monitoring system of rotary drilling rig |
| CN202481970U (en) * | 2011-12-23 | 2012-10-10 | 杭州卡炫电气有限公司 | Load lifting limiter for tower crane |
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| CN103076127A (en) | 2013-05-01 |
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Owner name: SANY MARINE HEAVY INDUSTRIES CO., LTD. Free format text: FORMER OWNER: KM GROUP CO., LTD. Effective date: 20150605 |
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