CN201354307Y - Rotary displacement checking device - Google Patents
Rotary displacement checking device Download PDFInfo
- Publication number
- CN201354307Y CN201354307Y CNU2009200378414U CN200920037841U CN201354307Y CN 201354307 Y CN201354307 Y CN 201354307Y CN U2009200378414 U CNU2009200378414 U CN U2009200378414U CN 200920037841 U CN200920037841 U CN 200920037841U CN 201354307 Y CN201354307 Y CN 201354307Y
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- bearing
- reel
- lining
- firm banking
- threaded shaft
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- Expired - Lifetime
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Abstract
A rotary displacement checking device comprises a fixed base (1), and is characterized in that a supporting frame (20) and a movable support (16) are connected on the fixed base (1), a bearing block (3) is installed on the supporting frame (20), a lining (13) is installed on the movable support (16), two ends of a reel (7) are respectively supported on the bearing block (3) and the lining (13), an outer screw thread on one end of a thread shaft (8) is screwed with an inner screw thread in the reel (7), the other end of the thread shaft (8) is threaded through the lining (13), a guiding slot (21) along the axial direction is arranged on the end, the lower end of a pin (12) is threaded through the movable support (16) and then is inserted into the guiding slot (21), a fixed end of a displacement sensor (4) is screwed on the inner screw thread of the bearing block (3), and a telescopic end (9) thereof is inserted into an inner hole of the thread shaft (8) and is balanced out with the hole bottom. The rotary displacement checking device has the advantages of simple structure and big checking range.
Description
Technical field
The utility model relates to a kind of construction to be risen and reuses displacement detector, and the detecting device of adjustable height, specifically a kind of rotary type displacement detector are measured in especially a kind of rotation that utilizes reel.
Background technology
As everyone knows, in construction project and equipment installation, often adopt multiple devices synchronized operation hoisting large-size member or equipment.Because of each weight-lifting equipment in use hoisting weight all must not surpass its rated load, in order to avoid damage equipment, cause the accident, this requirement can realize by the hoisting capacity safety guard; Research shows with test result, individual device in the group of planes must promote with other device synchronization or descend in common lifting, and certain the small asynchronous lifting amount of equipment all may make the load of other equipment sharply increase, and cause overload even accidents caused thus, it is very necessary therefore to control the synchronous amount of a group of planes in lifting.It is now ripe to measure the little displacement technology of Centimeter Level, but measures meter level big displacement quantity technology prepattern still, and lacks the proving installation of science.In the big big stroke lifting process of member, made in the past every equipment commonly used send someone to observe band tape graduation and the method control large-scale component adjusted of stopping promote in the method for synchronism of individual device, not only inaccuracy but also non-time, key are to lack the sensing detection device that can measure big displacement quantity.
Summary of the invention
The purpose of this utility model is the construction inconvenience that causes at lacking big displacement detector in the construction project, designs a kind of rotary type displacement detector that utilizes the small displacement sensing device to detect big displacement quantity.
The technical solution of the utility model is:
A kind of rotary type displacement detector, comprise firm banking 1, displacement pickup 4 and reel 7, an end that it is characterized in that described firm banking 1 is fixedly connected with travel(l)ing rest 20, the other end of firm banking 1 is equipped with expansion bearing 16, fixed installation has the bearing seat 3 of inner screw sheath on the travel(l)ing rest 20, be installed with lining 13 on the expansion bearing 16, reel 7 one ends are bearing on the bearing seat 3 by bearing A-6, the other end of reel 7 is bearing on the lining 13 by bearing B-10, outside thread on threaded shaft 8 the inners screws mutually with negative thread in the reel 7, the other end of threaded shaft 8 passes lining 13, this end axle upper edge is axially arranged with guide groove 21, pin 12 lower ends are passed expansion bearing 16 backs and are inserted in the described guide groove 21, the fixed end spinning of displacement pickup 4 offsets in the endoporus of telescopic shaft 9 insertion threaded shafts 8 and with at the bottom of the hole in the negative thread of bearing seat 3.
Described travel(l)ing rest 20 links to each other with firm banking 1 by welding or bolt.
The beneficial effects of the utility model:
The utility model can be converted to little displacement with the big displacement in the practice of construction, be convenient to detect and reflection in real time in electric-control system, it has the advantage that volume is little, the displacement detecting amount is big, and the maximum displacement that detects can reach about 2m, can solve the harmony requirement of most of preparation of construction.
The utlity model has simple in structurely, easily manufactured, take off data is accurate, and error is little, glitch-free advantage.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: the 1st, firm banking, the 2nd, the screw of adapter shaft bearing and support, the 3rd, bearing seat, the 4th, displacement pickup, the 5th, back-up ring A, the 6th, left end bearing A, the 7th, reel, the 8th, threaded shaft, the 9th, telescopic shaft, the 10th, right-hand member bearing B, the 11st, back-up ring B, the 12nd, pin, the 13rd, lining, the 14th, tie bolt, the 15th, packing ring, the 16th, expansion bearing, the 17th, holding-down bolt, the 18th, packing ring, the 19th, be wrapped in the steel rope on the reel, the 20th, support, the 21st, guide groove.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1.
A kind of rotary type displacement detector, comprise firm banking 1, displacement pickup 4 and reel 7, the method of an end by bolt or welding that is described firm banking 1 is fixedly connected with support 19, the other end of firm banking 1 is equipped with expansion bearing 16, fixed installation has the bearing seat 3 of negative thread on the support 19, bearing seat 3 can be fixed on the support 19 by screw 2, also can be welded on the support 19, be installed with lining 13 on the expansion bearing 16, reel 7 one ends are bearing on bearing seat 3 external diameters by bearing A6, the other end of reel 7 is bearing on the lining 13 by bearing B10, corresponding back-up ring A5 and back-up ring B11 all should be installed in the outer end of bearing A6 and bearing B10, outside thread on threaded shaft 8 the inners screws mutually with negative thread in the reel 7, the other end of threaded shaft 8 passes lining 13, this end axle upper edge is axially arranged with guide groove 21, pin 12 lower ends are passed expansion bearing 16 backs and are inserted in the described guide groove 21, the fixed end spinning of displacement pickup 4 offsets in the endoporus of its telescopic shaft 9 insertion threaded shafts 8 and with at the bottom of the hole in the negative thread of bearing seat 3.
Principle of work of the present utility model is:
Before lifting with firm banking 1, the outer end of steel rope 19 is separately fixed on the ground and lifting member of relative separation, steel rope 19 is pulled out from reel 7 during lifting, rotating drum 7 also is converted to corner Δ θ with straight-line displacement amount Δ L, because of the negative thread of reel 7 screws mutually with the outside thread of threaded shaft 8, in the guide groove 21 on the pin 12 insertion threaded shafts 8, make threaded shaft 8 only can make longitudinal travel and can not rotate, the moving circle of reel 7 revolutions, the longitudinal travel of threaded shaft 8 is that a tooth is apart from p, therefore after the big displacement quantity Δ L=n π D of steel rope 19 is converted into corner Δ θ by reel 7, engagement by screw thread pair again, Δ θ is converted into little displacement x, and (reduction rate is by drum diameter D, ridge determines apart from p), the telescopic shaft 9 that promotes on the displacement sensor 4 produces the differential voltage signal, being transported to instrument system again detects, demonstration is also sent control command, can calculate the relation between the pulled straight distance of the electric signal of displacement sensor 4 and steel rope 19 by mathematical computations exactly, thereby realize utilizing little displacement sensor to detect the big displacement quantity value of steel rope.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (3)
1, a kind of rotary type displacement detector, comprise firm banking (1), displacement pickup (4) and reel (7), an end that it is characterized in that described firm banking (1) is fixedly connected with travel(l)ing rest (20), the other end of firm banking (1) is equipped with expansion bearing (16), travel(l)ing rest (20) is gone up the bearing seat (3) that fixed installation has inner screw sheath, be installed with lining (13) on the expansion bearing (16), reel (7) one ends are bearing on the bearing seat (3) by bearing A (6), the other end of reel (7) is bearing on the lining (13) by bearing B (10), outside thread on threaded shaft (8) the inner screws mutually with negative thread in the reel (7), the other end of threaded shaft (8) passes lining (13), this end axle upper edge is axially arranged with guide groove (21), pin (12) lower end is passed expansion bearing (16) back and is inserted in the described guide groove (21), the fixed end spinning of displacement pickup (4) offsets in the endoporus of telescopic shaft (9) insertion threaded shaft (8) and with at the bottom of the hole in the negative thread of bearing seat (3).
2, rotary type displacement detector according to claim 1 is characterized in that described support (19) links to each other with firm banking (1) by welding or bolt.
3, rotary type displacement detector according to claim 1 is characterized in that the telescopic shaft (9) on the described displacement pickup (4) keeps pushing against all the time threaded shaft (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2009200378414U CN201354307Y (en) | 2009-02-06 | 2009-02-06 | Rotary displacement checking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2009200378414U CN201354307Y (en) | 2009-02-06 | 2009-02-06 | Rotary displacement checking device |
Publications (1)
Publication Number | Publication Date |
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CN201354307Y true CN201354307Y (en) | 2009-12-02 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNU2009200378414U Expired - Lifetime CN201354307Y (en) | 2009-02-06 | 2009-02-06 | Rotary displacement checking device |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101819033A (en) * | 2010-04-12 | 2010-09-01 | 江苏双楼建设集团有限公司 | Differential type displacement detecting device |
CN105197798A (en) * | 2014-12-02 | 2015-12-30 | 徐州重型机械有限公司 | Cable drum with length measurement function, length measurement method and crane |
CN109687637A (en) * | 2018-12-05 | 2019-04-26 | 兰州飞行控制有限责任公司 | A kind of linear actuator with position feedback function |
CN111982193A (en) * | 2020-08-11 | 2020-11-24 | 北京理工大学 | Self-driven sensor for measuring micro slippage between bearing and bushing |
CN112096760A (en) * | 2020-09-14 | 2020-12-18 | 安源管道实业股份有限公司 | Warp disc damping method for wire feeding station of steel skeleton plastic composite pipe production line |
-
2009
- 2009-02-06 CN CNU2009200378414U patent/CN201354307Y/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101819033A (en) * | 2010-04-12 | 2010-09-01 | 江苏双楼建设集团有限公司 | Differential type displacement detecting device |
CN105197798A (en) * | 2014-12-02 | 2015-12-30 | 徐州重型机械有限公司 | Cable drum with length measurement function, length measurement method and crane |
CN105197798B (en) * | 2014-12-02 | 2017-01-25 | 徐州重型机械有限公司 | Cable drum with length measurement function, length measurement method and crane |
CN109687637A (en) * | 2018-12-05 | 2019-04-26 | 兰州飞行控制有限责任公司 | A kind of linear actuator with position feedback function |
CN111982193A (en) * | 2020-08-11 | 2020-11-24 | 北京理工大学 | Self-driven sensor for measuring micro slippage between bearing and bushing |
CN112096760A (en) * | 2020-09-14 | 2020-12-18 | 安源管道实业股份有限公司 | Warp disc damping method for wire feeding station of steel skeleton plastic composite pipe production line |
CN112096760B (en) * | 2020-09-14 | 2022-01-04 | 安源管道实业股份有限公司 | Warp disc damping method for wire feeding station of steel skeleton plastic composite pipe production line |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20091202 |