阅读说明：本技术 一种电梯曳引绳张力自动调节绳头系统及电梯 (Elevator towline tension automatically regulated fag end system and elevator ) 是由 郑世云 马飞 唐川东 王成华 伍克林 李彬 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种电梯曳引绳张力自动调节绳头系统及电梯。所述绳头系统包括第一绳头装置、第二绳头装置以及曳引绳,一曳引绳的一端与第一绳头装置的端头绳头组件的锥套相连,另一端与第二绳头装置的一链条绳头组件的其中一锥套相连,链条绳头组件的另一锥套通过曳引绳与第一绳头装置上的链条绳头组件的其中一锥套相连,第一绳头装置上的该链条绳头组件的另一锥套通过曳引绳与第二绳头装置的另一链条绳头组件的其中一锥套相连,使第一绳头装置和第二绳头装置上的链条绳头组件形成串联,最后一根曳引绳的另一端与另一端头绳头组件的锥套相连。本发明能够自动调节每根曳引绳之间的张力,从而提高曳引绳的寿命并且提升电梯的使用舒适度。(The invention discloses an elevator hoisting rope tension automatic adjusting rope head system and an elevator. The rope head system comprises a first rope head device, a second rope head device and a hauling rope, one end of the hauling rope is connected with a taper sleeve of an end rope head component of the first rope head device, the other end of the hauling rope is connected with one taper sleeve of a chain rope head component of the second rope head device, the other taper sleeve of the chain rope head component is connected with one taper sleeve of the chain rope head component on the first rope head device through the hauling rope, the other taper sleeve of the chain rope head component on the first rope head device is connected with one taper sleeve of the other chain rope head component on the second rope head device through the hauling rope, so that the chain rope head components on the first rope head device and the second rope head device are connected in series, and the other end of the hauling rope is connected with the taper sleeve of the other end rope head component. The invention can automatically adjust the tension between each hauling rope, thereby prolonging the service life of the hauling ropes and improving the use comfort of the elevator.)

1. An elevator hoisting rope tension automatic adjusting rope head system comprises a first rope head device, a second rope head device and a plurality of hoisting ropes, and is characterized in that the first rope head device and the second rope head device respectively comprise a base and a chain rope head component; two shaft seats are vertically arranged on the base, and a rotating shaft is horizontally arranged between the two shaft seats; n or N +1 chain rope head assemblies are arranged on a rotating shaft of the first rope head device at intervals; the chain rope end assembly comprises a shaft sleeve sleeved on the rotating shaft and a chain wound on the shaft sleeve, and the shaft sleeve is fixedly connected with the rotating shaft and can synchronously rotate along with the rotating shaft; the shaft sleeve is provided with sprockets, and the chain is meshed with the sprockets and can synchronously rotate along with the rotating shaft; two ends of the chain are respectively connected with one end of a connecting screw rod, and the other end of the connecting screw rod penetrates through the base and then is connected with a chain rope head; the chain rope head comprises a taper sleeve, and a clamping wedge block is arranged in the taper sleeve;

when the number of the chain rope head components on the first rope head device and the second rope head device is the same, the base of the first rope head device and the base of the second rope head device are respectively provided with a rope head component with one end; when the number of the chain rope head assemblies on the first rope head device is N and the number of the chain rope head assemblies on the second rope head device is N +1, two end rope head assemblies are arranged on a base of the first rope head device; the end rope head assembly comprises a vertically arranged support rod, the upper end of the support rod is provided with a locking nut, the lower end of the support rod penetrates through the base and then is connected with a taper sleeve, and a clamping wedge block is also arranged in the taper sleeve; a buffer spring is arranged between the locking nut and the base, and the buffer spring is sleeved on the supporting rod;

one end of the hauling rope is connected with the taper sleeve of the end rope head component of the first rope head device, the other end of the hauling rope is connected with one taper sleeve of a chain rope head component of the second rope head device, the other taper sleeve of the chain rope head component is connected with one taper sleeve of the chain rope head component on the first rope head device through the hauling rope, the other taper sleeve of the chain rope head component on the first rope head device is connected with one taper sleeve of the other chain rope head component on the second rope head device through the hauling rope, the operation is repeated, the chain rope head components on the first rope head device and the second rope head device are connected in series through a plurality of hauling ropes, and the other end of the last hauling rope is connected with the taper sleeve of the other end rope head component.

2. The automatic tension adjusting sheave system of an elevator hoist rope according to claim 1, wherein the chain sheave further comprises a connecting sleeve; a locking nut and an adjusting nut are sleeved on one end of the connecting screw rod, which is far away from the chain, and then the locking nut and the adjusting nut extend into one end of the connecting sleeve and are in threaded connection with the connecting sleeve; the other end of the connecting sleeve is connected with the taper sleeve through a connecting bolt.

3. The automatic tension adjusting sheave system for elevator hoisting ropes of claim 1 wherein the bushings are evenly distributed on the shaft and are retained by locating sleeves.

4. The system of claim 1, wherein the base has through holes corresponding to the connecting screw and the supporting rod, and the through holes are provided with a ring-shaped buffer.

5. The automatic tension adjusting sheave system for elevator ropes according to claim 1, wherein the base includes a fixed plate and a bottom plate, and a cushion rubber is filled between the fixed plate and the bottom plate.

6. Elevator, characterized in that it comprises an elevator hoisting rope tension automatic adjusting fag end system according to any of claims 1-5.

Technical Field

The invention relates to the technical field of elevators, in particular to an automatic tension adjusting rope head system for an elevator hoisting rope and an elevator.

Background

With the progress of society, the living standard of people is continuously improved, and elevators are popularized as standard fittings of urban buildings. In the existing elevator, the number of elevators driven by a traction steel wire rope is the largest. The traction steel wire rope elevator needs to be provided with a plurality of steel wire ropes, but the tension of the steel wire ropes can not be absolutely ensured to be consistent in the installation process, so that the abrasion of a traction sheave is inconsistent. Because every wire rope is different with traction sheave coefficient of friction for the elevator produces the vibration easily in the operation process, reduces the comfort level of elevator operation, also can cause traction sheave and single scrap in advance of wire rope simultaneously, and then makes the elevator reliability lower, and the maintenance probability increases.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to solve the problems that when the existing elevator adopts a plurality of hoisting ropes, the tension between the hoisting ropes is difficult to keep consistent, so that the elevator comfort level is low, and a single hoisting rope is easy to scrap.

In order to solve the technical problems, the invention adopts the following technical scheme:

a tension automatic adjusting rope head system of an elevator hoisting rope comprises a first rope head device, a second rope head device and a plurality of hoisting ropes, wherein the first rope head device and the second rope head device respectively comprise a base and a chain rope head component; two shaft seats are vertically arranged on the base, and a rotating shaft is horizontally arranged between the two shaft seats; n or N +1 chain rope head assemblies are arranged on a rotating shaft of the first rope head device at intervals; the chain rope end assembly comprises a shaft sleeve sleeved on the rotating shaft and a chain wound on the shaft sleeve, and the shaft sleeve is fixedly connected with the rotating shaft and can synchronously rotate along with the rotating shaft; the shaft sleeve is provided with sprockets, and the chain is meshed with the sprockets and can synchronously rotate along with the rotating shaft; two ends of the chain are respectively connected with one end of a connecting screw rod, and the other end of the connecting screw rod penetrates through the base and then is connected with a chain rope head; the chain rope head comprises a taper sleeve, and a clamping wedge block is arranged in the taper sleeve;

when the number of the chain rope head components on the first rope head device and the second rope head device is the same, the base of the first rope head device and the base of the second rope head device are respectively provided with a rope head component with one end; when the number of the chain rope head assemblies on the first rope head device is N and the number of the chain rope head assemblies on the second rope head device is N +1, two end rope head assemblies are arranged on a base of the first rope head device; the end rope head assembly comprises a vertically arranged support rod, the upper end of the support rod is provided with a locking nut, the lower end of the support rod penetrates through the base and then is connected with a taper sleeve, and a clamping wedge block is also arranged in the taper sleeve; a buffer spring is arranged between the locking nut and the base, and the buffer spring is sleeved on the supporting rod;

one end of the hauling rope is connected with the taper sleeve of the end rope head component of the first rope head device, the other end of the hauling rope is connected with one taper sleeve of a chain rope head component of the second rope head device, the other taper sleeve of the chain rope head component is connected with one taper sleeve of the chain rope head component on the first rope head device through the hauling rope, the other taper sleeve of the chain rope head component on the first rope head device is connected with one taper sleeve of the other chain rope head component on the second rope head device through the hauling rope, the operation is repeated, the chain rope head components on the first rope head device and the second rope head device are connected in series through a plurality of hauling ropes, and the other end of the last hauling rope is connected with the taper sleeve of the other end rope head component.

The chain rope head components on the first rope head device and the second rope head device are connected in series through the automatic rope head adjusting system, the other end of the last dragging rope is connected with the taper sleeve of the rope head component at the other end, so that when the attractive force of the dragging rope is released, the rope grooves of the dragging wheel are abraded, the attractive force of each reverse rope sheave and the rope grooves of the guide wheel is changed and abraded, the length of each dragging rope is slowly changed to cause the tension change of one dragging rope, the chain rope head is pulled to transmit the force to the chain, the chain and the shaft sleeve can drive the rotating shaft to rotate on the rotating shaft, the length of the adjacent dragging rope is changed, the purpose of adjusting the tensile force of the dragging rope is achieved, the tensile force of each dragging rope is consistent, the pressure of the dragging rope on the dragging wheel is consistent, the dragging rope and the dragging wheel are engaged more stably, and the running vibration and noise are reduced, the comfort level of the elevator is improved. In addition, because the pressure of the traction ropes on the traction sheave is consistent, the abrasion of each traction rope and the rope groove of the traction sheave is uniform, and the service life of the traction sheave and the traction ropes is prolonged.

Further, the chain rope head also comprises a connecting sleeve; a locking nut and an adjusting nut are sleeved on one end of the connecting screw rod, which is far away from the chain, and then the locking nut and the adjusting nut extend into one end of the connecting sleeve and are in threaded connection with the connecting sleeve; the other end of the connecting sleeve is connected with the taper sleeve through a connecting bolt. Therefore, the tension of one steel wire rope can be adjusted through the adjusting nut, and the steel wire ropes are locked by the locking nut after adjustment is completed, so that the tension of each steel wire rope is balanced.

Furthermore, the shaft sleeves are uniformly distributed on the rotating shaft and are limited by the positioning sleeves, so that the tension of each hauling rope can be ensured to be consistent.

Furthermore, through holes are respectively formed in the base corresponding to the connecting screw rod and the support rod, and annular cushion pads are arranged at the through holes. Because there is the certain distance between the one end that connecting screw and chain link to each other and the blotter, when the chain moved around the axis of rotation and surpassed the certain distance, connecting screw was close to the one end of chain and is contacted with the blotter, can prevent that the chain fag end from continuing to move to avoid a towline fracture, cause tension to be zero. If one hoisting rope has zero tension and the other hoisting ropes are connected in series with the broken hoisting rope, the tension of the other hoisting ropes is also failed, and the hoisting ropes can not bear the weight of the elevator car or the counterweight and fall.

Further, the base includes fixed plate and bottom plate, is filled with the cushion gum between fixed plate and bottom plate, like this, has further reduced operation vibrations and noise.

The invention also provides an elevator, which comprises the elevator traction rope tension automatic adjusting rope head system.

Compared with the prior art, the invention has the following advantages:

the chain rope head components on the first rope head device and the second rope head device are connected in series through the automatic rope head adjusting system, the other end of the last dragging rope is connected with the taper sleeve of the rope head component at the other end, so that when the attractive force of the dragging rope is released, the rope grooves of the dragging wheel are abraded, the attractive force of each reverse rope sheave and the rope grooves of the guide wheel is changed and abraded, the length of each dragging rope is slowly changed to cause the tension change of one dragging rope, the chain rope head is pulled to transmit the force to the chain, the chain and the shaft sleeve can drive the rotating shaft to rotate on the rotating shaft, the length of the adjacent dragging rope is changed, the purpose of adjusting the tensile force of the dragging rope is achieved, the tensile force of each dragging rope is consistent, the pressure of the dragging rope on the dragging wheel is consistent, the dragging rope and the dragging wheel are engaged more stably, and the running vibration and noise are reduced, the comfort level of the elevator is improved. In addition, because the pressure of the traction ropes on the traction sheave is consistent, the abrasion of each traction rope and the rope groove of the traction sheave is uniform, and the service life of the traction sheave and the traction ropes is prolonged.

Drawings

Fig. 1 is a schematic view of a rope end device in an automatic tension adjusting rope end system of an elevator hoist rope according to the present invention.

Fig. 2 is a front sectional view of fig. 1.

Fig. 3 is a connection diagram of the chain head assembly and the end head assembly on the first and second rope head devices when the hoist ropes are 7.

Fig. 4 is a schematic view showing the connection of the first rope head device and the second rope head device when the hoist ropes are 7.

Fig. 5 is a schematic view showing the connection of the first rope head device and the second rope head device when the hoist rope is 5 ropes.

Fig. 6 is a schematic view showing the connection of the first rope head device and the second rope head device when the hoist ropes are 3.

Fig. 7 is a schematic view showing the connection of the first and second rope head devices when the hoist ropes are 8.

Fig. 8 is a schematic view showing the connection of the first and second rope head devices when the hoist ropes are 6.

Fig. 9 is a schematic view showing the connection of the first and second rope head devices when the hoist ropes are 4.

In the figure: the rope hoisting device comprises a first rope head device 1, a second rope head device 2, a hoisting rope 3, a base 4, a shaft seat 41, a rotating shaft 42, a fixing plate 43, a bottom plate 44, a chain rope head component 5, a chain 51, a connecting screw rod 52, a locking nut 521, an adjusting nut 522, a chain rope head 53, a connecting sleeve 531, a connecting bolt 532, an end rope head component 6, a support rod 61, a locking nut 62, a buffer spring 63, a taper sleeve 7, a clamping wedge 8 and a buffer pad 9.

Detailed Description

The invention will be further explained with reference to the drawings and the embodiments.

Example 1

Referring to fig. 1 and 2, an elevator hoist rope tension automatic adjusting rope head system includes a first rope head device 1, a second rope head device 2, and a plurality of hoist ropes 3. The first rope head device 1 and the second rope head device 2 both comprise a base 4 and a chain rope head component 5. Two shaft seats 41 are vertically arranged on the base 4, and a rotating shaft 42 is horizontally arranged between the two shaft seats 41. N or N +1 chain head assemblies 5 are provided at intervals on the rotating shaft 42 of the first rope head device 1. In general there are at least 3 hoisting ropes 3, so N.gtoreq.1 and is a natural number. The chain rope head assembly 5 comprises a shaft sleeve sleeved on the rotating shaft 42 and a chain 51 wound on the shaft sleeve, and the shaft sleeve is fixedly connected with the rotating shaft 42 and can synchronously rotate along with the rotating shaft 42. The shaft sleeve is provided with sprockets, and the chain 51 is meshed with the sprockets and can synchronously rotate along with the rotating shaft 42. In specific implementation, the shaft sleeves are uniformly distributed on the rotating shaft 42 and are limited by the positioning sleeves, so that the tension of each hoisting rope 3 can be ensured to be consistent. Two ends of the chain 51 are respectively connected with one end of a connecting screw 52, and the other end of the connecting screw 52 passes through the base 4 and then is connected with a chain rope end 53. The chain rope end 53 comprises a taper sleeve 7, and a clamping wedge 8 is arranged in the taper sleeve 7. In practice, the chain head 53 further includes a connecting sleeve 531. The end of the connecting screw 52 far away from the chain 51 is sleeved with the locking nut 521 and the adjusting nut 522, and then extends into one end of the connecting sleeve 531 and is in threaded connection with the connecting sleeve 531. The other end of the connecting sleeve 531 is connected with the taper sleeve 7 through a connecting bolt 532. Thus, the tension of one wire rope can be adjusted by the adjusting nut 522, and after the adjustment is completed, the wire rope is locked by the locking nut 521, so that the tension of each wire rope is balanced.

Referring to fig. 3 to 6, when the number of the chain head units 5 on the first and second rope head devices 1 and 2 is the same, the base 4 of the first and second rope head devices 1 and 2 is provided with a head unit 6, respectively. Referring to fig. 1 again, the end head rope head assembly 6 comprises a supporting rod 61 which is vertically arranged, the upper end of the supporting rod 61 is provided with a locking nut 62, the lower end of the supporting rod passes through the base 4 and then is connected with a taper sleeve 7, and a clamping wedge block 8 is also arranged in the taper sleeve 7; a buffer spring 63 is arranged between the lock nut 62 and the base 4, and the buffer spring 63 is sleeved on the support rod 61.

In the embodiment shown in fig. 3, one end of one of the hoisting ropes 3 is connected to the taper sleeve 7 of the end rope head assembly 6 of the first rope head device 1, the other end is connected to one of the taper sleeves 7 of one of the chain rope head assemblies 5 of the second rope head device 2, the other taper sleeve 7 of the chain rope head assembly 5 is connected to one of the taper sleeves 7 of one of the chain rope head assemblies 5 of the first rope head device 1 through one of the hoisting ropes 3, the other taper sleeve 7 of the chain rope head assembly 5 of the first rope head device 1, one of the hoisting ropes 3 is connected to one of the taper sleeves 7 of the other of the chain rope head assemblies 5 of the second rope head device 2, and the above operations are repeated, so that the chain rope head assemblies 5 of the first rope head device 1 and the second rope head device 2 are connected in series through a plurality of the hoisting ropes 3, and the other end of the hoisting rope 3 is connected to the taper sleeve 7 of the other end rope head assembly 6.

In practical implementation, the base 4 comprises a fixing plate 43 and a bottom plate 44, and a shock-absorbing glue is filled between the fixing plate 43 and the bottom plate 44, so that operation vibration and noise are further reduced. Through holes are respectively formed in the base 4 corresponding to the connecting screw rod 52 and the support rod 61, and an annular cushion pad 9 is arranged at the through holes. Because a certain distance exists between the end of the connecting screw rod 52 connected with the chain 51 and the buffer pad 9, when the chain 51 moves beyond a certain distance around the rotating shaft 42, the end of the connecting screw rod 52 close to the chain 51 contacts with the buffer pad 9, which can prevent the chain rope end 53 from moving continuously, thereby avoiding the fracture of one hauling rope 3 and causing the tension to be zero. If the tension of one hoisting rope 3 is zero and the other hoisting ropes 3 are connected in series with the broken hoisting rope 3, the tension of the other hoisting ropes 3 is also lost, and the hoisting ropes 3 cannot bear the weight of the elevator car or the counterweight and fall. An included angle is formed between the axial direction of the rotating shaft 42 and the length direction of the base 4, so that the chain rope head assembly 5 is obliquely arranged on the base 4, most of the traction ropes 3 are ensured to be staggered from the guide wheel or the rope groove of the traction wheel and not to interfere with each other, and the operation vibration and noise caused by the relative operation of the steel wire ropes are effectively prevented.

The chain rope head components on the first rope head device and the second rope head device are connected in series through the automatic rope head adjusting system, the other end of the last dragging rope is connected with the taper sleeve of the rope head component at the other end, so that when the attractive force of the dragging rope is released, the rope grooves of the dragging wheel are abraded, the attractive force of each reverse rope sheave and the rope grooves of the guide wheel is changed and abraded, the length of each dragging rope is slowly changed to cause the tension change of one dragging rope, the chain rope head is pulled to transmit the force to the chain, the chain and the shaft sleeve can drive the rotating shaft to rotate on the rotating shaft, the length of the adjacent dragging rope is changed, the purpose of adjusting the tensile force of the dragging rope is achieved, the tensile force of each dragging rope is consistent, the pressure of the dragging rope on the dragging wheel is consistent, the dragging rope and the dragging wheel are engaged more stably, and the running vibration and noise are reduced, the comfort level of the elevator is improved. In addition, because the pressure of the traction ropes on the traction sheave is consistent, the abrasion of each traction rope and the rope groove of the traction sheave is uniform, and the service life of the traction sheave and the traction ropes is prolonged.

Example 2

Referring to fig. 7 to 9, the present embodiment is different from embodiment 1 in that the number of the chain head assemblies 5 on the first rope device 1 is N, and the number of the chain head assemblies 5 on the second rope device 2 is N + 1. In this case, two end head rope assemblies 6 are provided on the base 4 of the first rope device 1. The hoisting ropes are connected to the first and second rope head devices in a manner similar to that of example 1: one end of the hauling rope 3 is connected with the taper sleeve 7 of the one-end rope head component 6 of the first rope head device 1, the other end of the hauling rope is connected with one taper sleeve 7 of the one-chain rope head component 5 of the second rope head device 2, the other taper sleeve 7 of the one-chain rope head component 5 is connected with one taper sleeve 7 of the one-chain rope head component 5 on the first rope head device 1 through the hauling rope 3, the other taper sleeve 7 of the one-chain rope head component 5 on the first rope head device 1, the hauling rope 3 and one taper sleeve 7 of the other-chain rope head component 5 on the second rope head device 2 are connected in series through a plurality of hauling ropes 3, and the other end of the hauling rope 3 is connected with the taper sleeve 7 of the other-end rope head component 6 on the first rope head device. Therefore, the installation position of the end rope head device is adjusted according to the number of the hoisting ropes, the tension of the hoisting ropes can be automatically adjusted, the installation rule of the elevator hoisting ropes is met, and the elevator installation is not affected.

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 modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.