CN210973466U - Elevator car towline tension balance system - Google Patents
Elevator car towline tension balance system Download PDFInfo
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- CN210973466U CN210973466U CN201922080980.1U CN201922080980U CN210973466U CN 210973466 U CN210973466 U CN 210973466U CN 201922080980 U CN201922080980 U CN 201922080980U CN 210973466 U CN210973466 U CN 210973466U
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Abstract
The utility model discloses a tension balancing system for a traction rope of an elevator car, which is characterized by comprising a suspension upper cover and a suspension lower cover; a plurality of upper fixed pulleys are distributed on the upper suspension cover around the upper suspension cover, and the lower fixed pulleys are arranged on the lower suspension cover at positions corresponding to the upper fixed pulleys; a plurality of hanging movable pulleys and rope collecting movable pulleys are arranged on the hanging lower cover, and the hanging movable pulleys and the rope collecting movable pulleys are alternately distributed between two adjacent lower fixed pulleys; the hanging lower cover is provided with a strip-shaped hole, and the hanging movable pulley and the rope collecting movable pulley are in sliding fit and are adjacent to the strip-shaped hole of the hanging lower cover through a support shaft; the upper fixed pulley and the lower fixed pulley are tightly attached together, so that the wheel grooves of the upper fixed pulley and the lower fixed pulley are matched to form a line hole; the rope still suspends in midair including being annular, it is located the wire hole that fixed pulley and lower fixed pulley cooperation formed, suspend in midair the movable pulley and receive the rope movable pulley and all hang the upside that suspends in midair the rope. The utility model discloses reached and hung in midair the balanced purpose of tension everywhere on the rope, reduced the wearing and tearing of hanging in midair the rope.
Description
Technical Field
The utility model belongs to the technical field of the elevator hangs, concretely relates to elevator car towline tension balanced system.
Background
To current traction elevator suspension mode, the suspension tension that different wire rope (steel band) received is different, and the condition of wearing and tearing appears easily in the wire rope (steel band) that receives big suspension tension for a long time, leads to falling of elevator car, in addition, considers that wire rope (steel band) self can have atress elastic deformation, condition such as expend with heat and contract with cold, will be transferred suitable length by the wire rope (steel band) of dimension maintainer elevator at every other period, adjusts suspension tension to reduce the wearing and tearing of wire rope (steel band).
However, in the conventional technology, the car needs to be lifted, so that the counterweight frame is supported in a pit in a balanced manner, the length of the steel wire rope (steel belt) can be adjusted, the whole process consumes large manpower and material resources, and the implementation is inconvenient.
Therefore, it is a technical problem to be solved by those skilled in the art how to provide a tension balancing system for a traction rope of an elevator car, which has a simple structure, is convenient to tighten a steel wire rope and realizes automatic tension balancing.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the tension balancing system of the elevator car hauling rope has the advantages that the structure is simple, the steel wire rope is conveniently tightened, and the automatic tension balancing is realized.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an elevator car hoist rope tension balancing system, comprising:
the suspension upper cover and the suspension lower cover are connected together through a connecting bolt, and the side walls of the suspension upper cover and the suspension lower cover are of double-layer structures; a plurality of upper fixed pulleys are uniformly distributed on the upper suspension cover around the periphery of the upper suspension cover, lower fixed pulleys are arranged on the lower suspension cover at positions corresponding to the upper fixed pulleys, and the upper fixed pulleys and the lower fixed pulleys are respectively positioned between the inner layer and the outer layer of the upper suspension cover and the lower suspension cover and correspondingly connected with the inner layer and the outer layer of the upper suspension cover and the lower suspension cover through support shafts; moreover, the upper fixed pulley and the lower fixed pulley are tightly attached together, so that the wheel grooves of the upper fixed pulley and the lower fixed pulley are matched to form a line hole;
a plurality of hanging movable pulleys and rope collecting movable pulleys are also arranged on the hanging lower cover, and the hanging movable pulleys and the rope collecting movable pulleys are alternately distributed between two adjacent lower fixed pulleys; the inner layer and the outer layer of the suspension lower cover are respectively provided with a strip-shaped hole vertically penetrating through the upper side and the lower side of the suspension lower cover at the position corresponding to the suspension movable pulley and the rope collection movable pulley, and the suspension movable pulley and the rope collection movable pulley are connected with the strip-shaped holes at the corresponding positions of the inner layer and the outer layer of the suspension lower cover in a sliding fit manner through a support shaft;
the hanging rope is annular and is positioned between the upper fixed pulley and the lower fixed pulley, the wire hole formed by matching the upper fixed pulley and the lower fixed pulley is used for limiting, the perimeter of the hanging rope is larger than the perimeters of the upper hanging cover and the lower hanging cover, and the hanging movable pulley and the rope retracting movable pulley are both hung on the upper side of the hanging rope;
a rope head component is arranged at the lower side of the suspension movable pulley; an adjusting screw is arranged on the lower side of the rope-collecting movable pulley, and the upper end of the adjusting screw is connected with two ends of a supporting shaft of the rope-collecting movable pulley through a U-shaped frame; a protective steel plate is horizontally arranged below the suspended lower cover, a rope hole is respectively formed in the protective steel plate at the position corresponding to each rope head component, and the lower end of the adjusting screw rod penetrates through the rope hole and then is connected with a locking nut.
In the application, the different tension of the suspension ropes is embodied as different horizontal heights of the suspension movable pulleys; the self-balancing assembly of the self-balancing device is connected by the suspension rope passing around the fixed pulley, and the known principle that the stress on two sides of the fixed pulley is the same can be obtained: the stress of the suspension ropes at the positions of the suspension sliding pulleys can be the same, so that the aim of balancing the tension of each part on the suspension ropes is fulfilled, and the abrasion of the suspension ropes is reduced; in addition, the self-balancing assembly is circularly arranged around the suspension column, so that the positions of the suspension turning can be selected by 360 degrees, and a plurality of suspension units can be suspended simultaneously; when the suspension rope is broken, the suspension movable pulley is supported by the protective steel plate, so that the safety of the elevator is guaranteed.
After the elevator operation a period, the suspension rope must have a certain amount of extension, uses the elevator car towline tension balance system of this application can directly use the method of screwing the nut: the nut at the lower end of the rope-collecting movable pulley is unscrewed, the rope-collecting movable pulley moves upwards, and the suspended movable pulley moves upwards under the action of the lower fixed pulley, so that the purpose of collecting the rope is achieved.
Furthermore, the rope end assembly comprises a connecting seat, a rope end fixing seat and a cushion pad; the connecting seat is U-shaped, two ends of the connecting seat extend upwards and are connected with two ends of a supporting shaft suspending the movable pulley in a hanging mode, the rope end fixing seat is fixedly connected with the lower side of the connecting seat, the two buffering cushions are fixedly connected with two sides of the rope end fixing seat and are respectively positioned in the strip-shaped holes in corresponding positions of the inner layer and the outer layer of the hanging lower cover
Still further, the buffer pad is made of an elastic material, and a buffer spring is arranged in the buffer pad.
Like this, suspend in midair and expect that the back is disconnected, all fag end subassemblies are whole to be pressed on the protection steel sheet, because the blotter is made by elastic material and is provided with buffer spring in the blotter, the blotter has increased area of contact, can avoid fag end subassembly to pull through the risk that disconnected rope protection device dropped.
Furthermore, a rope breaking protection switch is further arranged below the protection steel plate, the rope breaking protection switch is provided with a button, the button is arranged upwards, and the rope breaking protection switch is used for being electrically connected with the speed limiter.
Like this, in the twinkling of an eye that rope end subassembly dropped, the deformation of certain degree can take place for the protection steel sheet on the disconnected rope protection switching device, and this deformation contact rope breakage protection switching device's button makes the overspeed governor move, arouses the action of safety tongs, and the danger that the car falls is avoided to duplicate protection elevator.
Furthermore, the suspension upper cover is provided with a top plate, the suspension lower cover is provided with a bottom plate, and a screw rod of the connecting bolt penetrates through the top plate and the bottom plate and then is connected with a fastening nut; through holes for the rope head assembly and the adjusting screw to pass through are formed in the chassis corresponding to the positions of the rope head assembly and the adjusting screw respectively.
Thus, the suspension upper cover and the suspension lower cover are fixed.
Further, the lower side of the upper fixed pulley is flush with the lower side of the side wall of the suspension upper cover, and the upper side of the lower fixed pulley is flush with the upper side of the side wall of the suspension lower cover.
Drawings
Fig. 1 is a schematic structural view of a tension balancing system of an elevator car hoist rope according to the present invention in normal operation.
Fig. 2 is a schematic structural view of the tension balancing system of the elevator car in the rope breaking protection state.
Fig. 3 is a schematic structural view of the tension balancing system for elevator car hoisting ropes according to the present invention when tightened.
Fig. 4 is a schematic structural view of the suspension lower cover of the present invention.
Fig. 5 is a schematic structural view of the suspension upper cover of the present invention.
Fig. 6 is a schematic structural view of the rope end assembly of the present invention.
The reference numbers illustrate: suspending the upper cover 1; hanging the lower cover 2; an upper fixed pulley 3; a lower fixed pulley 4; an inner layer 5; an outer layer 6; a movable pulley 8 is suspended; a rope-retracting movable pulley 9; a strip-shaped hole 10; a suspension cord 11; a connecting base 12; a rope end fixing seat 13; a cushion pad 14; an adjusting screw 15; a protective steel plate 16; a lock nut 17; a buffer spring 18; a rope breakage protection switch 19; a rope hole 20; the hoisting ropes 21.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: referring to fig. 1 to 6, an elevator car hoist rope tension balancing system includes a suspension upper cover 1, a suspension lower cover 2, and a suspension rope. The upper suspension cover 1 and the lower suspension cover 2 are connected together through connecting bolts, and the side walls of the upper suspension cover 1 and the lower suspension cover 2 are both of a double-layer structure. A plurality of upper fixed pulleys 3 are uniformly distributed on the upper suspension cover 1 around the circumference of the upper suspension cover, lower fixed pulleys 4 are arranged on the lower suspension cover 2 at positions corresponding to the upper fixed pulleys 3, and the upper fixed pulleys 3 and the lower fixed pulleys 4 are respectively positioned between the inner layer and the outer layer of the upper suspension cover 1 and the lower suspension cover 2 and are correspondingly connected with the inner layer 5 and the outer layer 6 of the upper suspension cover 1 and the lower suspension cover 2 through support shafts. And, the upper fixed pulley 3 is closely attached to the lower fixed pulley 4, so that the wheel grooves of the upper fixed pulley 3 and the lower fixed pulley 4 are matched to form a line hole. The hanging lower cover 1 is also provided with a plurality of hanging movable pulleys 8 and rope collecting movable pulleys 9, and the hanging movable pulleys 8 and the rope collecting movable pulleys 9 are alternately distributed between two adjacent lower fixed pulleys 4. Hang inlayer 5 and the skin 6 of lower cover 2, the vertical bar hole 10 that hangs both sides about covering is hung in running through respectively to the position that corresponds to hang movable pulley 8 and receipts rope movable pulley 9, hang movable pulley 8 and receipts rope movable pulley 9 and link to each other through the bar hole 10 sliding fit that the back shaft corresponds the position with inlayer 5 and the skin 6 that hang lower cover 2. The suspension rope 11 is annular and is positioned between the upper fixed pulley 3 and the lower fixed pulley 4, the wire hole formed by the cooperation of the upper fixed pulley 3 and the lower fixed pulley 4 is limited, the perimeter of the suspension rope 11 is larger than the perimeters of the suspension upper cover 1 and the suspension lower cover 2, specifically, the perimeter of the suspension rope 11 is 1.5-3 times the perimeter of the suspension upper cover 1 and the suspension lower cover 2, the suspension movable pulley and the rope winding movable pulley are both suspended on the upper side of the suspension rope, and the suspension movable pulley 8 and the rope winding movable pulley 9 are both suspended on the upper side of the suspension rope 11. A rope head component is arranged at the lower side of the hanging movable pulley 8; an adjusting screw rod 15 is arranged on the lower side of the rope collecting movable pulley 9, and the upper end of the adjusting screw rod 15 is connected with two ends of a supporting shaft of the rope collecting movable pulley 9 through a U-shaped frame; a protection steel plate 16 is horizontally arranged below the suspension lower cover 2, a rope hole 20 is respectively arranged on the protection steel plate 16 corresponding to the positions of the rope head components, the lower end of the adjusting screw 15 penetrates through the rope hole 20 and then is connected with a locking nut 17, the rope head components are used for being connected with a hauling rope 21, and the hauling rope 21 penetrates through the rope hole 20.
In the application, the different tension of the suspension ropes is embodied as different horizontal heights of the suspension movable pulleys; the self-balancing assembly of the self-balancing device is connected by the suspension rope passing around the fixed pulley, and the known principle that the stress on two sides of the fixed pulley is the same can be obtained: the stress of the suspension ropes at the positions of the suspension sliding pulleys can be the same, so that the aim of balancing the tension of each part on the suspension ropes is fulfilled, and the abrasion of the suspension ropes is reduced; in addition, the self-balancing assembly is circularly arranged around the suspension column, so that the positions of the suspension turning can be selected by 360 degrees, and a plurality of suspension units can be suspended simultaneously; when the suspension rope is broken, the suspension movable pulley is supported by the protective steel plate, so that the safety of the elevator is guaranteed.
After the elevator operation a period, the suspension rope must have a certain amount of extension, uses the elevator car towline tension balance system of this application can directly use the method of screwing the nut: the nut at the lower end of the rope-collecting movable pulley is unscrewed, the rope-collecting movable pulley moves upwards, and the suspended movable pulley moves upwards under the action of the lower fixed pulley, so that the purpose of collecting the rope is achieved.
The rope head component comprises a connecting seat 12, a rope head fixing seat 13 and a cushion pad 14; the connecting seat 12 is U-shaped, and its both ends upwards extend and link to each other with the both ends of suspending the back shaft of movable pulley 8 in midair, fag end fixing base 13 and the downside fixed connection of connecting seat 12, blotter 14 is two to with fag end fixing base 13 both sides fixed connection, and be located respectively and hang the bar hole 10 that the inlayer of lower cover 2 and the inlayer correspond the position. The cushion pad 14 is made of an elastic material, and a cushion spring 18 is further disposed in the cushion pad 14. In practice, the elastic material may be rubber.
Like this, suspend in midair and expect that the back is disconnected, all fag end subassemblies are whole to be pressed on the protection steel sheet, because the blotter is made by elastic material and is provided with buffer spring in the blotter, the blotter has increased area of contact, can avoid fag end subassembly to pull through the risk that disconnected rope protection device dropped.
The rope breaking protection switch 19 is further arranged below the protection steel plate 16, the rope breaking protection switch 19 is installed in a well through a mounting support, the rope breaking protection switch is provided with a button, the button is arranged upwards, the rope breaking protection switch is used for being electrically connected with a speed limiter, the speed limiter is used for operating a safety gear, and the safety gear is used for achieving braking of an elevator.
Like this, in the twinkling of an eye that rope end subassembly dropped, the deformation of certain degree can take place for the protection steel sheet on the disconnected rope protection switching device, and this deformation contact rope breakage protection switching device's button makes the overspeed governor move, arouses the action of safety tongs, and the danger that the car falls is avoided to duplicate protection elevator.
The suspension upper cover 1 is provided with a top plate, the suspension lower cover 2 is provided with a base plate, and a screw rod of a connecting bolt penetrates through the top plate and the base plate and then is connected with a fastening nut; on the chassis, corresponding to the positions of the head assembly and the adjusting screw 15, through holes for the head assembly and the adjusting screw 15 to pass through are respectively formed.
Thus, the suspension upper cover and the suspension lower cover are fixed.
Further, the lower side of the upper fixed pulley 3 is flush with the lower side of the side wall of the hanging upper cover 1, and the upper side of the lower fixed pulley 4 is flush with the upper side of the side wall of the hanging lower cover 2.
In operation, the suspension upper cover 1 and the suspension lower cover 2 of the present application are installed on the top of the elevator shaft.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (6)
1. An elevator car hoist rope tension balancing system, comprising:
the suspension upper cover and the suspension lower cover are connected together through a connecting bolt, and the side walls of the suspension upper cover and the suspension lower cover are of double-layer structures; a plurality of upper fixed pulleys are uniformly distributed on the upper suspension cover around the periphery of the upper suspension cover, lower fixed pulleys are arranged on the lower suspension cover at positions corresponding to the upper fixed pulleys, and the upper fixed pulleys and the lower fixed pulleys are respectively positioned between the inner layer and the outer layer of the upper suspension cover and the lower suspension cover and correspondingly connected with the inner layer and the outer layer of the upper suspension cover and the lower suspension cover through support shafts; moreover, the upper fixed pulley and the lower fixed pulley are tightly attached together, so that the wheel grooves of the upper fixed pulley and the lower fixed pulley are matched to form a line hole;
a plurality of hanging movable pulleys and rope collecting movable pulleys are also arranged on the hanging lower cover, and the hanging movable pulleys and the rope collecting movable pulleys are alternately distributed between two adjacent lower fixed pulleys; the inner layer and the outer layer of the suspension lower cover are respectively provided with a strip-shaped hole vertically penetrating through the upper side and the lower side of the suspension lower cover at the position corresponding to the suspension movable pulley and the rope collection movable pulley, and the suspension movable pulley and the rope collection movable pulley are connected with the strip-shaped holes at the corresponding positions of the inner layer and the outer layer of the suspension lower cover in a sliding fit manner through a support shaft;
the hanging rope is annular and is positioned between the upper fixed pulley and the lower fixed pulley, the wire hole formed by matching the upper fixed pulley and the lower fixed pulley is used for limiting, the perimeter of the hanging rope is larger than the perimeters of the upper hanging cover and the lower hanging cover, and the hanging movable pulley and the rope retracting movable pulley are both hung on the upper side of the hanging rope;
a rope head component is arranged at the lower side of the suspension movable pulley; an adjusting screw is arranged on the lower side of the rope-collecting movable pulley, and the upper end of the adjusting screw is connected with two ends of a supporting shaft of the rope-collecting movable pulley through a U-shaped frame; a protective steel plate is horizontally arranged below the suspended lower cover, a rope hole is respectively formed in the protective steel plate at the position corresponding to each rope head component, and the lower end of the adjusting screw rod penetrates through the rope hole and then is connected with a locking nut.
2. The elevator car hoist rope tension balancing system of claim 1, wherein the head assembly includes a connecting seat, a head mount, and a cushion pad; the connecting seat is U-shaped, and its both ends upwards extend and link to each other with the both ends of suspending in midair the back shaft of movable pulley, rope fastening seat and the downside fixed connection of connecting seat, the blotter is two to with rope fastening seat both sides fixed connection, and be located the bar hole that hangs the inlayer of lower cover and the corresponding position of inlayer respectively.
3. The elevator car hoist rope tension balancing system of claim 2, wherein the cushion pad is made of an elastic material and a cushion spring is further disposed within the cushion pad.
4. The tension balancing system for the hoisting ropes of the elevator car according to claim 1, wherein a rope breakage protection switch is further disposed below the protective steel plate, the rope breakage protection switch has a button, and the button is disposed upward, and the rope breakage protection switch is used for electrically connecting with the speed limiter.
5. The elevator car hoist rope tension balancing system of claim 1, wherein the suspended upper cover has a top plate and the suspended lower cover has a bottom plate; a screw rod of the connecting bolt penetrates through the top plate and the bottom plate and then is connected with the fastening nut; through holes for the rope head assembly and the adjusting screw to pass through are formed in the chassis corresponding to the positions of the rope head assembly and the adjusting screw respectively.
6. The elevator car hoist rope tension balancing system of claim 1, wherein the lower side of the upper fixed sheave is flush with the lower side of the side wall of the suspension upper cover and the upper side of the lower fixed sheave is flush with the upper side of the side wall of the suspension lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922080980.1U CN210973466U (en) | 2019-11-27 | 2019-11-27 | Elevator car towline tension balance system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922080980.1U CN210973466U (en) | 2019-11-27 | 2019-11-27 | Elevator car towline tension balance system |
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| Publication Number | Publication Date |
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| CN210973466U true CN210973466U (en) | 2020-07-10 |
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| CN201922080980.1U Active CN210973466U (en) | 2019-11-27 | 2019-11-27 | Elevator car towline tension balance system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745668A (en) * | 2019-11-27 | 2020-02-04 | 重庆迈高电梯有限公司 | Automatic tension balancing system for traction rope of elevator car |
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2019
- 2019-11-27 CN CN201922080980.1U patent/CN210973466U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745668A (en) * | 2019-11-27 | 2020-02-04 | 重庆迈高电梯有限公司 | Automatic tension balancing system for traction rope of elevator car |
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