CN218434396U

CN218434396U - Elevator overspeed device tensioner

Info

Publication number: CN218434396U
Application number: CN202222504191.8U
Authority: CN
Inventors: 王召华
Original assignee: Zhejiang Vertical Elevator Co ltd
Current assignee: Zhejiang Vertical Elevator Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-02-03
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to an elevator speed limit equipment technical field, concretely relates to elevator overspeed governor overspeed device tensioner, which comprises a bracket, the outer wall front end of support is rotated and is connected with the take-up pulley, the front end of support and the both sides that are located the take-up pulley all are fixed with outer baffle, still include guide block, guide way, fixed wheel and tensioning adjusting part, the outer wall top of support is fixed with the backplate, and is known through above-mentioned mode the utility model discloses in when needs adjust the tensioning dynamics of speed limit rope, only need start servo motor and drive two-way screw rod and rotate and make the screw thread slider drive the removal that the relative direction was done to the driving wheel through removing the slider for the shape of speed limit rope in the guide way converts "S" type into by original "I" type, and because the length increase of the tensioning rope of "S" type in the guide way, thereby can adjust the holistic tensioning dynamics of speed limit rope.

Description

Elevator overspeed device tensioner

Technical Field

The utility model relates to an elevator speed limiting equipment technical field, concretely relates to elevator overspeed governor overspeed device tensioner.

Background

The elevator speed limiter is one of the safety control components in the elevator safety protection system, when the elevator runs and the car is overspeed and even falls due to any reason, and all other safety protection devices do not work, the speed limiter and the safety tongs perform linkage action to stop the elevator car, the speed limiter can monitor and control the speed of the car at any time, and the speed limiting rope needs to be tensioned by the tensioning device in the using process of the elevator speed limiter.

However, in the application process of the existing elevator speed limiter tensioning device, an additional fixing structure is not always arranged outside the connection with the speed limiting rope, so that once the speed limiting rope is suddenly stressed and contracted when the tensioning device works, the speed limiting rope is easily shaken, and even the speed limiting rope can be separated under severe conditions.

The beneficial effects of the above-mentioned patent technology are that through addding fixed knot structure in the top of take-up pulley, can play extra fixed spacing effect to the speed limit rope, the problem of traditional elevator overspeed governor overspeed tensioner can not play extra fixed spacing to the speed limit rope when using has been solved, just can utilize first fixed plate and second fixed plate to play extra fixed spacing effect at the in-process that this overspeed governor overspeed tensioner used, overall structure is simple, however, above-mentioned patent technology is when specifically using, its fixed knot who sets up constructs it and can play fixes spacing effect to the speed limit rope, and its tensioning to the speed limit rope is adjusted still only to rely on the take-up pulley and the frictional force between the speed limit rope to adjust, other structures are not addd, this mode is possible to adjust the tensioning dynamics of speed limit rope, however its tensioning dynamics to the speed limit rope is adjusted the dynamics, the tensioning effect is poor, it is slow to realize the tensioning, can't realize the tensioning effect fast comparatively low.

In summary, it is necessary to invent a tension device of an elevator speed limiter.

SUMMERY OF THE UTILITY MODEL

For this, the utility model provides an elevator overspeed device tensioner to solve above-mentioned patent technology when specifically using, it can play and fix spacing effect to the speed limit rope to its fixed knot who sets up constructs, and its tensioning to the speed limit rope is adjusted still only and is relied on the take-up pulley and is regulated the frictional force between the speed limit rope, do not add other structures, this mode is though can accomplish to adjust the tensioning dynamics of speed limit rope, however its tensioning adjustment dynamics to the speed limit rope is lower, the tensioning effect is poor, the speed of realization tensioning is slow, can't realize the problem of tensioning effect fast.

In order to achieve the above object, the present invention provides the following technical solutions: the tensioning device for the speed limiter of the elevator comprises a support, a guide block, a guide groove, a fixed wheel and a tensioning adjusting component, wherein the front end of the outer wall of the support is rotatably connected with a tensioning wheel, and outer baffles are fixed at the front end of the support and positioned on two sides of the tensioning wheel;

the tensioning device comprises a support, a tensioning wheel, a guide block, a rear baffle, a guide groove and a tensioning adjusting component, wherein the rear baffle is fixed at the top end of the outer wall of the support, the rear end of the outer wall of the guide block is fixed at the front end of the outer wall of the rear baffle and is located above the tensioning wheel, the guide groove is formed in the inner wall of the guide block, and the tensioning adjusting component is arranged at the front end of the outer wall of the guide block and in the guide groove.

Preferably, cross fixing plates are fixed to two sides of the outer wall of the support, screw holes are formed in the front ends of the outer wall of the cross fixing plates, and the upper side and the lower side of the outer wall of one side, close to the tensioning wheel, of each cross fixing plate are fixedly connected with the upper end and the lower end of two sides of the outer wall of the support through reinforcing rods.

Preferably, the outer wall of take-up pulley has the speed limit rope around having, the guide way is seted up in the inner wall both sides of guide block and with speed limit rope hookup location department, the threading groove has all been seted up in the outer wall both sides of guide block and the position department that corresponds with the speed limit rope, the threading groove all communicates with the upper and lower side of the inner wall of guide way.

Preferably, inlay the groove all seted up in the inner wall both sides in threading groove, the inner wall both sides of inlaying the groove all rotate and are connected with the ball.

Preferably, the tensioning adjustment part includes the driving wheel, every the driving wheel quantity that sets up in the guide way is two, the outer wall front and back end of fixed wheel all is connected through pivot a and the rotation of the inner wall front and back end center department of guide way, two the driving wheel sets up respectively in the inner wall of guide way and is located the upper and lower side of fixed wheel.

Preferably, the outer wall front and back end of driving wheel all rotates and is connected with pivot b, the outer wall rear end of pivot b all with the inner wall rear end of guide way on downside sliding connection, the outer wall front end of guide block and with two the guide way corresponds position department and all is provided with two-way screw rod, two the outer wall both ends of two-way screw rod all rotate and are connected with the fixed plate.

Preferably, the rear end of the outer wall of the fixing plate is fixedly connected with the front end of the outer wall of the guide block, the opposite ends of the two bidirectional screws are provided with servo motors, one ends of the servo motors are fixedly connected with the side ends of the outer wall of the fixing plate, and the servo motors are fixedly connected with one ends of the outer wall of the bidirectional screws through output shafts.

Preferably, the equal threaded connection of outer wall of two-way screw rod has the screw thread slider, two the outer wall top and the outer wall bottom of screw thread slider are fixed with bent type connecting rod respectively, the one end that the screw thread slider was kept away from to bent type connecting rod all is fixed with the removal slider, two the front end that the driving wheel outer wall front end rotated pivot b of connecting respectively with two the outer wall rear end fixed connection who removes the slider, the outer wall front end of guide block with the front end pivot b corresponds position department and has seted up the bar groove, the front end the outer wall of pivot b all with the inner wall sliding connection in bar groove.

The utility model has the advantages that:

the utility model discloses in, pass the guide way through the threading groove at the both ends of restricting speed rope, can restrict fixedly through guide way and threading groove and cooperation fixed wheel and driving wheel like this, can effectively avoid the condition that the speed restriction rope breaks away from with the take-up pulley to take place, and when needs adjust the tensioning dynamics of speed restriction rope, only need start servo motor and drive two-way screw rod and rotate and make the screw slider drive the removal that the relative direction was done to the driving wheel through removing the slider, make the shape of speed restriction rope in the guide way convert "S" type into by original "I" type, and because the length increase of the tensioning rope of "S" type in the guide way, thereby can adjust the holistic tensioning dynamics of speed restriction rope, with this can solve the utility model discloses the tensioning dynamics of the above-mentioned patent technique to speed restriction rope that proposes among the background art is lower, the tensioning effect is poor, realize that the speed of tensioning is slow, can't realize the problem of tensioning effect fast.

Drawings

Fig. 1 is a schematic view of the external structure of the utility model in the front view direction;

FIG. 2 is an enlarged schematic view of the structure of the present invention at B in FIG. 1;

FIG. 3 is a schematic view of a partial cross-sectional structure of the guide block in the front view direction when the tension of the speed limiting rope is not adjusted;

FIG. 4 is a schematic view of a partial cross-sectional structure of the guide block in the front view direction after the tensioning force of the speed-limiting rope is adjusted according to the present invention;

fig. 5 is an enlarged schematic structural view of a portion a in fig. 3 according to the present invention;

fig. 6 is a schematic view of a three-dimensional structure of the middle tension pulley of the present invention.

In the figure: 100. a support; 110. a tension wheel; 120. an outer baffle; 130. a cross-shaped fixing plate; 200. a tailgate; 300. a guide block; 310. a guide groove; 320. fixing the wheel; 321. a driving wheel; 330. a ball bearing; 400. a servo motor; 410. a bidirectional screw; 420. a threaded slider; 421. moving the slide block; 422. a curved connecting rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-6, the utility model provides an elevator speed limiter tensioning device, which comprises a bracket 100, wherein the front end of the outer wall of the bracket 100 is rotatably connected with a tensioning wheel 110, outer baffles 120 are fixed at the front end of the bracket 100 and at the two sides of the tensioning wheel 110, the outer baffles 120 are arranged to limit the speed limiting rope wound on the tensioning wheel 110 and avoid the speed limiting rope from being separated from the two sides of the outer wall of the tensioning wheel 110, cross-shaped fixing plates 130 are fixed at the two sides of the outer wall of the bracket 100, the front end of the outer wall of the cross fixing plate 130 is provided with screw holes, the upper side and the lower side of the outer wall of one side of the cross fixing plate 130 close to the tension pulley 110 are fixedly connected with the upper side and the lower side of the two sides of the outer wall of the bracket 100 through reinforcing rods, the screw holes arranged on the cross fixing plate 130 can fix bolts, and workers can fix the device in an elevator shaft through the cross fixing plate 130 and the bolts, and the device further comprises a guide block 300, a guide groove 310, a fixed pulley 320 and a tension adjusting part;

a rear baffle 200 is fixed at the top end of the outer wall of the bracket 100, the rear end of the outer wall of the guide block 300 is fixed at the front end of the outer wall of the rear baffle 200 and is positioned above the tension wheel 110, the rear baffle 200 is arranged to fix the guide block 300 above the tension wheel 110, a guide groove 310 is formed in the inner wall of the guide block 300, a speed-limiting rope is wound on the outer wall of the tension wheel 110, the guide groove 310 is formed in two sides of the inner wall of the guide block 300 and is connected with the speed-limiting rope, the guide groove 310 is formed to enable the speed-limiting rope to pass through the guide block 300, so that the position of the speed-limiting rope can be limited and fixed, the speed-limiting rope is prevented from being separated from the outer wall of the tension wheel 110, meanwhile, the guide groove 310 is also used for adjusting the tension degree of the speed-limiting rope, threading grooves are formed in two sides of the outer wall of the guide block 300 and in positions corresponding to the speed-limiting rope, the threading grooves are communicated with the upper side and the lower side of the inner wall of the guide groove 310, the threading grooves are formed to enable the threading grooves to penetrate into the speed-limiting rope to penetrate into the guide groove 310 and penetrate out from the guide groove 310, and to enable the inner wall of the threading groove 330 to be connected with the ball bearings, and to be connected with the ball embedding grooves 330 for reducing the friction force when the inner wall;

the tensioning adjusting component is arranged at the front end of the outer wall of the guide block 300 and in the guide groove 310, the tensioning adjusting component comprises two driving wheels 321, the number of the driving wheels 321 arranged in each guide groove 310 is two, the front end and the rear end of the outer wall of the fixed wheel 320 are rotatably connected with the centers of the front end and the rear end of the inner wall of the guide groove 310 through a rotating shaft a, a set speed limiting rope can be contacted with the side end of the outer wall of the fixed wheel 320 during daily use, the two driving wheels 321 are respectively arranged on the inner wall of the guide groove 310 and positioned on the upper side and the lower side of the fixed wheel 320, the set upper driving wheel 321 is arranged at the upper end of the outer wall of the fixed wheel 320 and positioned in the direction far away from the center of the guide block 300, the set lower driving wheel 321 is arranged at the bottom end of the outer wall of the fixed wheel 320 and positioned in the direction close to the center of the guide block 300, the front end and the rear end of the outer wall of the driving wheel 321 are rotatably connected with a rotating shaft b, the rear end of the outer wall of the rotating shaft b is slidably connected with the upper side and lower side of the inner wall of the guide groove 310, the two-way limiting screw rods 410 are arranged at the positions corresponding to the two-way sliding blocks 410, and the two-way sliding grooves 410 are arranged at the two-way sliding grooves 410;

the outer wall rear end of fixed plate all with the outer wall front end fixed connection of guide block 300, the relative one end of two-way screw rod 410 all is provided with servo motor 400, servo motor 400 ' S one end all with the outer wall lateral side fixed connection of fixed plate, servo motor 400 that sets up can drive two-way screw rod 410 and carry out forward and reverse rotation through the output shaft, servo motor 400 all is through the outer wall one end fixed connection of output shaft and two-way screw rod 410, the equal threaded connection of outer wall of two-way screw rod 410 has screw slider 420, the screw slider 420 that sets up can drive its both ends to be connected when rotating, the relative or opposite direction ' S removal is done simultaneously to the screw slider 420, the outer wall top and the outer wall bottom of two screw slider 420 are fixed with bent type connecting rod 422 respectively, the one end that bent type connecting rod 422 kept away from screw slider 420 all is fixed with removal slider 421, the front end of two driving wheel 321 outer wall front ends rotation connection ' S pivot b respectively with the outer wall rear end fixed connection of two removal sliders 421, screw slider 420 can drive removal slider 421 to move when moving through the relative removal of bent type connecting rod 422 when moving, the outer wall front end of guide block 300 has seted up the position with front end b and has the outer wall b and has the bar type slider 421 and can be adjusted the relative removal rope, thereby the relative removal of two bar type slider 310.

The utility model discloses a use as follows: firstly, an installer can fix the device in a hoistway of an elevator through a cross fixing plate 130 and bolts, pass a speed-limiting rope through a threading groove through a guide groove 310 and wind the speed-limiting rope at the bottom end of the outer wall of a tension pulley 110, limit and fix the speed-limiting rope through the arranged guide groove 310 and the threading groove and matching with a fixed pulley 320 and a driving pulley 321, and effectively avoid the situation that the speed-limiting rope is separated from the tension pulley 110, when the elevator breaks down and needs to increase the tension of the speed-limiting rope, a control unit on the elevator can simultaneously start two servo motors 400 through a power transmission cable and a switch, so that the servo motors 400 drive a bidirectional screw 410 to rotate through an output shaft, a threaded sliding block 420 connected at two sides of the outer wall of the bidirectional screw 410 can drive two moving sliding blocks 421 to move in opposite directions through a curved connecting rod 422, the arranged moving sliding blocks 421 can drive two driving pulleys 321 to move together through a rotating shaft b when moving, the arranged driving pulley 321 can push the outer wall of the speed-limiting rope to move together when moving, so that the shape of the speed-limiting rope in the guide groove 310 is changed from an original I shape to an S shape, thereby increasing the tension of the speed-limiting rope, and controlling the two pulleys to drive the bidirectional screw threads of the bidirectional screw 400 to rotate in opposite directions, and thus completing the reverse maintenance of the bidirectional screw 410.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. The utility model provides an elevator overspeed governor overspeed device tensioner, includes support (100), the outer wall front end of support (100) is rotated and is connected with take-up pulley (110), the front end of support (100) just is located the both sides of take-up pulley (110) and all is fixed with outer baffle (120), its characterized in that: the device also comprises a guide block (300), a guide groove (310), a fixed wheel (320) and a tensioning adjusting component;

the tensioning device is characterized in that a rear baffle (200) is fixed to the top end of the outer wall of the support (100), the rear end of the outer wall of the guide block (300) is fixed to the front end of the outer wall of the rear baffle (200) and located above the tensioning wheel (110), the guide groove (310) is formed in the inner wall of the guide block (300), and the tensioning adjusting component is arranged at the front end of the outer wall of the guide block (300) and in the guide groove (310).

2. The elevator governor tensioning device of claim 1, wherein: both sides of the outer wall of the support (100) are respectively fixed with a cross fixing plate (130), the front end of the outer wall of the cross fixing plate (130) is provided with a screw hole, and the upper side and the lower side of the outer wall of one side, close to the tensioning wheel (110), of the cross fixing plate (130) are fixedly connected with the upper end and the lower end of both sides of the outer wall of the support (100) through reinforcing rods.

3. The elevator governor tensioning device of claim 1, wherein: the outer wall of take-up pulley (110) has around having connect the speed limit rope, guide way (310) are seted up in the inner wall both sides of guide block (300) and with speed limit rope hookup location department, the outer wall both sides of guide block (300) and with speed limit rope corresponding position department all seted up the threading groove, the threading groove all communicates with the upper and lower side of the inner wall of guide way (310).

4. An elevator governor tensioning device as defined in claim 3, wherein: the inner wall both sides in threading groove have all been seted up and have been inlayed the groove, the inner wall both sides of inlaying the groove all rotate and are connected with ball (330).

5. The elevator governor tensioning device of claim 1, wherein: tensioning adjustment part includes driving wheel (321), every driving wheel (321) quantity that sets up in guide way (310) is two, the outer wall front and back end of fixed wheel (320) all is connected through pivot a and the rotation of inner wall front and back end center department of guide way (310), two driving wheel (321) set up respectively at the inner wall of guide way (310) and are located the upper and lower side of fixed wheel (320).

6. An elevator governor tensioning device as defined in claim 5, wherein: the outer wall front and back end of driving wheel (321) all rotates and is connected with pivot b, pivot b's outer wall rear end all with the inner wall rear end of guide way (310) downside sliding connection on, the outer wall front end of guide block (300) and with two guide way (310) correspond position department and all are provided with two-way screw rod (410), two the outer wall both ends of two-way screw rod (410) all rotate and are connected with the fixed plate.

7. The elevator governor tensioning device of claim 6, wherein: the outer wall rear end of fixed plate all with the outer wall front end fixed connection of guide block (300), two the relative one end of two-way screw rod (410) all is provided with servo motor (400), the one end of servo motor (400) all with the outer wall side fixed connection of fixed plate, servo motor (400) all through the outer wall one end fixed connection of output shaft and two-way screw rod (410).

8. An elevator governor tensioning device as defined in claim 7, wherein: the equal threaded connection of outer wall of two-way screw rod (410) has screw thread slider (420), two the outer wall top and the outer wall bottom of screw thread slider (420) are fixed with bent type connecting rod (422) respectively, the one end that screw thread slider (420) were kept away from in bent type connecting rod (422) all is fixed with removes slider (421), two the front end of driving wheel (321) outer wall front end rotation pivot b of connecting is respectively with two remove the outer wall rear end fixed connection of slider (421), the outer wall front end of guide block (300) with the front end pivot b corresponds position department and has seted up the bar groove, the front end the outer wall of pivot b all with the inner wall sliding connection in bar groove.