Strong-drive villa elevator

Abstract

The strong-drive villa elevator comprises a main machine driving mechanism, a reversing wheel set and a rope head fixing mechanism, the reversing wheel set and the rope head fixing mechanism are arranged at the top of a lift car, the main machine driving mechanism comprises a driving part and a wheel disc, the driving part drives a main machine rotating shaft to rotate, the wheel disc is fixedly connected with the main machine rotating shaft, and a winding part for winding a steel belt is arranged on the outer side of the wheel disc and is a vortex-shaped curved surface; the screw pitch of the vortex curved surface is equal to the thickness of the steel belt; the steel belt is led out of the wheel disc, reversed to be horizontal through the reversing wheel set and then connected with the rope head fixing mechanism. The device is simple and reliable in structure, small in occupied space and particularly suitable for villa scenes with limited hoistway space and limited top floor height, and the utilization rate of the hoistway space is greatly increased; and the winding wheel disc with the vortex-shaped curved surface is arranged, so that elevator operation shaking caused by sudden winding change is avoided, and the stability and comfort of elevator operation are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, especially to a strong drive villa elevator. BACKGROUND

[0002] The elevator is a kind of vertical lift, mainly realizes vertical transportation by main engine driving system, is equipped with box-shaped car, is used for multilayer building passenger or carries goods. As vertical traffic tool, elevator has become an important equipment and indispensable in construction site. In order to meet the needs of some users, villa elevator develops very fast, and demand is increasing. Because the hoistway of villa elevator is generally small, the space utilization rate of the elevator for the hoistway is higher and higher. In practical application, the hoistway with small top floor height, pit depth and length-width size is often encountered, which challenges the installation of the elevator.

[0003] The mainstream elevator type with high market acceptance degree in the prior art adopts 2:1 suspension system, the structure of the elevator type is relatively complex, and the space occupation is large, which is not conducive to use in villa scene with limited hoistway space. In addition, one end of the traction rope (steel belt or steel wire rope) in the main engine driving system of the elevator type is generally wound on the main engine rotating shaft, and the other end is connected with the car, and the main engine rotating shaft is a standard circle, the position or structure for fixing the end of the steel belt has a sudden change, and when the steel belt is wound on the main engine rotating shaft, some unsmooth transitions will be generated due to the sudden change of the radius. After the elevator runs, the unsmooth transitions will cause corresponding shaking of the elevator during running, and the length of the traction rope of the elevator type is relatively long, and the number of winding turns on the main engine rotating shaft is increased, so that the shaking degree is increased, and the running stability of the elevator is affected. SUMMARY

[0004] The present application aims to provide a strong drive villa elevator to overcome the deficiencies in the prior art.

[0005] To solve the above technical problems, the technical scheme of the present application is as follows: a strong drive villa elevator, comprising a main engine driving mechanism and a reversing wheel group and a rope head fixing mechanism arranged on the top of the car, the main engine driving mechanism comprising a driving member and a wheel disc, the driving member drives the rotation of the main engine rotating shaft, the wheel disc is fixedly connected with the main engine rotating shaft, the outer side of the wheel disc is provided with a winding part for winding the steel belt, the winding part is a vortex line curved surface, the pitch of the vortex line curved surface is equal to the thickness of the steel belt, and the steel belt is connected with the rope head fixing mechanism after being changed direction by the reversing wheel group.

[0006] Further, the strong drive villa elevator described above, the wheel disc is provided with two, and the two wheel discs are symmetrically arranged on the two sides of the driving member, and the two wheel discs are fixed on the two ends of the main engine rotating shaft. Preferably, the wheel disc is fixedly connected with the main engine rotating shaft through a key.

[0007] Further, the strong-drive villa elevator described above, the wheel disc comprises a wheel disc body and a pressing plate, the wheel disc body is externally provided with a flat mouth, the pressing plate is inlaid at the flat mouth and detachably connected with the wheel disc body, and the outer sides of the pressing plate and the wheel disc body are both curved surfaces, forming a winding part; a pressing groove is arranged between the pressing plate and the flat mouth of the wheel disc body, and one end of the steel belt is arranged in the pressing groove and fixedly connected with the wheel disc through the pressing plate.

[0008] Further, the strong-drive villa elevator described above, the flat mouth is connected with the winding part on one side, and the starting winding position of the steel belt on the winding part is provided with a round corner connected with the arc of the winding part in transition, and the radius of the round corner is greater than the minimum bending radius of the steel belt.

[0009] Further, the strong-drive villa elevator described above, the wheel disc is provided with two oppositely arranged baffle plates on both sides, and the two baffle plates protrude from the winding part and form a limiting space for the winding steel belt. Preferably, the wheel disc body is provided with grooves on both sides, the baffle plates are annular and are sleeved outside the grooves, and the baffle plates are fixedly connected with the wheel disc body through fasteners penetrating the wheel disc body and the two baffle plates.

[0010] Further, the strong-drive villa elevator described above, the inner side of the baffle plate is provided with a U-shaped pressing groove oppositely arranged with the flat mouth, the bottom of the U-shaped pressing groove is arc-shaped and matched with the curved surface of the outer side of the pressing plate, and the two ends of the pressing plate extend into the U-shaped pressing grooves of the two baffle plates.

[0011] Further, the strong-drive villa elevator described above, the winding part of the wheel disc is processed by wire cutting.

[0012] Further, the strong-drive villa elevator described above, the rope head fixing mechanism comprises two rope head fixing assemblies, namely a rope head fixing assembly one and a rope head fixing assembly two, and the two rope head fixing assemblies are arranged side by side on the top of the car or oppositely arranged along one diagonal of the top of the car.

[0013] Further, the strong-drive villa elevator described above, the main machine driving mechanism is arranged at the bottom of the hoistway, a fixed pulley set is arranged at the top of the hoistway, the fixed pulley set is arranged on a support frame and comprises two groups of fixed pulleys arranged along the axis of the main machine rotating shaft in an interval, the steel belt led out from the wheel disc is led upwards, wound around the fixed pulley set, and then led downwards, changed direction by a reversing pulley set, and then fixedly connected with the rope head fixing assembly after being changed to be horizontal.

[0014] Further, the strong drive villa elevator described above, the two steel belt traction paths are different, the steel belt wound on one of the pulleys is connected with the rope fixing assembly one after passing through at least one fixed pulley of a set of fixed pulleys, and the steel belt wound on the other pulley is connected with the rope fixing assembly two after passing through at least one fixed pulley of another set of fixed pulleys, and the rope fixing assembly one and the rope fixing assembly two are arranged along one diagonal of the top of the car.

[0015] Further, the strong drive villa elevator described above, the two steel belt traction paths are different, the steel belt wound on one of the pulleys is connected with the rope fixing assembly one after passing through at least one fixed pulley of a set of fixed pulleys, and the steel belt wound on the other pulley is connected with the rope fixing assembly two after passing through at least one fixed pulley of another set of fixed pulleys, and the rope fixing assembly one and the rope fixing assembly two are arranged along one diagonal of the top of the car.

[0016] Compared with the prior art, the strong drive villa elevator has the following beneficial effects: The 1:1 suspension system adopted by the strong drive villa elevator has simple and reliable structure, small space occupation, and is particularly suitable for villa scenes with limited shaft space and limited top floor height, thereby greatly improving the shaft space utilization rate. The steel belt length of the 1:1 suspension system is shortened, the corresponding winding number is reduced, the winding diameter and the pulley diameter can be correspondingly increased, the steel belt wear and fatigue damage can be reduced, and the service life of the steel belt can be prolonged.

[0017] The strong drive villa elevator has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0019] Figure 1 Structure diagram of an embodiment of the strong drive villa elevator Figure 1 ; Figure 2 Structure diagram of an embodiment of the strong drive villa elevator Figure 2 ; Figure 3 Structure diagram of another embodiment of the strong drive villa elevator Figure 1 ; Figure 4 Structure diagram of another embodiment of the strong drive villa elevatorFigure 2 ; Figure 5 It is the rope head fixed component structure schematic view of the strong drive villa elevator of the application; Figure 6 It is the rope passing block structure schematic view of the strong drive villa elevator of the application; Figure 7 It is the main drive mechanism structure schematic view of an embodiment of the strong drive villa elevator of the application; Figure 8 It is the main drive mechanism local structure schematic view of the strong drive villa elevator of the application; Figure 9 It is the main drive mechanism local explosion schematic view of the strong drive villa elevator of the application; Figure 10 It is the wheel disc section structure schematic view of the strong drive villa elevator of the application; Figure 11 It is the wheel disc winding structure schematic view of the strong drive villa elevator of the application; In the figure: 1, main drive mechanism, 11, drive piece; 111, speed reducer box; 112, servo motor; 12, wheel disc; 121, winding part; 122, wheel disc main body; 1221, flat mouth; 1222, round corner; 123, pressing plate; 124, baffle; 1241, U-shaped pressing groove; 125, pressing groove; 13, main shaft; 14, support bearing seat; 15, guide wheel; 151, wheel seat; 2, reversing wheel group; 3, rope head fixing mechanism; 301, rope head fixed component one; 302, rope head fixed component two; 31, fixed seat; 32, support rod; 33, elastic piece; 34, gasket; 35, locking nut; 36, bolt; 37, rope passing block; 371, opening; 38, steel band clamp; 39, wedge, 4, fixed pulley group; 5, support frame; 6, steel band; 7, car. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0021] Embodiment 1 As Figures 1-11As shown, a strong drive villa elevator includes a main drive mechanism 1 and a reversing wheel set 2 and a rope head fixing mechanism 3 arranged at the top of the car 7, the main drive mechanism 1 includes a driving part 11, a wheel disc 12, the driving part 11 drives the rotation of the main shaft 13, the wheel disc 12 is fixedly connected with the main shaft 13, the outer side of the wheel disc 12 is provided with a winding part 121 winding the steel belt 6, the steel belt 6 is led out from the wheel disc 12, is reversed to the horizontal through the reversing wheel set 2, and is connected with the rope head fixing mechanism 3.

[0022] In the embodiment, the reversing wheel set 60 converts the end of the steel belt 6 from vertical to horizontal, realizes the horizontal layout of the steel belt rope head structure, the layout is reasonable and compact, the shaft plane space is ingeniously utilized, the height occupation is effectively reduced, and the requirement for the top floor height is reduced.

[0023] Among them, as shown in the figure, Figures 1-4 The driving part 11 includes a reduction box 111 and a servo motor 112, the reduction box 11 is a gear reduction box, which can increase the output torque, and realize stable and low noise elevator lifting.

[0024] As shown in the figures, Figures 1-4 , 7, the wheel disc 12 is provided with two, which are symmetrically arranged on both sides of the driving part 11, and the two wheel discs are fixed at both ends of the main shaft 13. Specifically, the wheel disc 12 is fixedly connected with the main shaft 13 through a key, which is simple and convenient to install, but is not limited thereto, and can also be pin connection, fastener connection and the like. The wheel disc 12 is located at both ends of the driving part 11 and the main shaft 13, the structure stability of the main power mechanism is better, and the wheel disc is convenient to disassemble and assemble, which is beneficial to the later maintenance and maintenance.

[0025] In order to improve the rotation stability of the wheel disc, support bearing seats 14 can be arranged at both ends of the main shaft 13, through the arrangement of the support bearing seats 14, the load on the main shaft 13 can be reduced, the support strength of the wheel disc located on both sides of the driving part 11 is better, so as to improve the rotation stability of the wheel disc.

[0026] As shown in the figure, Figures 1-6 The rope head fixing mechanism 3 includes two rope head fixing assemblies, which are respectively: a rope head fixing assembly one 301 and a rope head fixing assembly two 302, the rope head fixing assembly one 301 and the rope head fixing assembly two 302 are arranged side by side at the top of the car 7 or are arranged opposite along one diagonal of the top of the car 7.

[0027] As shown in the figure, Figures 5-6As shown, the rope head fixing assembly includes a support rod 32 passing through the fixing seat 31 fixed on the top of the car 7, and a rope passing block 37 is installed at the end of the support rod 32, which is located on the same side of the fixing seat 31 as the reversing wheel set 2. The rope passing block 37 is provided with a through opening 371, and the steel belt 6 horizontally led out from the reversing wheel set 2 is inserted into the small end of the opening 371 and led out from the large end, and then reversely folded at the large end and led out from the small end. The end of the steel belt 6 led out from the small end is provided with a steel belt clamp 38. The wedge block 39 is pressed between the double-layer steel belts 6 inside the rope passing block 37, and the wedge block 38 is matched with the cavity shape of the opening.

[0028] In actual operation, the steel belt 6 is inserted into the small end of the rope passing block 37 and led out from the large end, and then the wedge block 39 is inserted into the opening 371 of the rope passing block 37 together with the steel belt 6 after being covered by the steel belt 6 from the large end. The end of the steel belt 6 led out from the small end is installed with the steel belt clamp 38 after being pulled tight, and the steel belt 30 is pressed by the wedge surface between the wedge block 39 and the opening 371, thereby completing the installation of the end of the steel belt 6 on the rope head fixing assembly.

[0029] The support rod 32 located on the other side of the fixing seat 300 away from the rope passing block 37 is sequentially sleeved with a gasket 34, an elastic element 33, and a gasket 34, and is threadedly locked with a double locking nut 33. The support rod 32 adjacent to the outer side of the locking nut 33 is radially inserted with a plug 36. The elastic element 33 provided on the support rod 32 makes the rope head fixing assembly clamping the end of the steel belt 30 have a moving buffer elasticity. The plug 36 is used to prevent the locking nut 33 from falling off.

[0030] In this embodiment, the steel belt clamp 38 can be a structure form of opposite buckling and locking each other by using fasteners to prevent the steel belt 6 from loosening. The end of the support rod 32 is threadedly assembled with the rope passing block 37. The wedge block 39 is provided with a through groove, and a locking pin is horizontally installed through the rope passing block 37 and the through groove to prevent the wedge block 39 from separating from the rope passing block 37.

[0031] In one embodiment, as shown in Figures 1-2 The main machine driving mechanism 1 is arranged at the bottom of the shaft, and a fixed pulley set 4 is arranged at the top of the shaft. The fixed pulley set 4 is arranged on the support frame 5 and includes two groups of fixed pulleys arranged axially along the main machine rotating shaft 13. The steel belt 6 led out from the wheel disc 12 is upwardly led out, passes through the fixed pulley set 4, and is downwardly led out, reverses through the reversing wheel set 2, and is horizontally connected with the rope head fixing assembly.

[0032] In the embodiment, the traction paths of the two steel belts 6 are different, the steel belt 6 wound on one of the two pulley discs 12 is connected to the rope fixing assembly one 301 after passing through at least one fixed pulley of a set of fixed pulleys, and the steel belt 6 wound on the other pulley disc 12 is connected to the rope fixing assembly two 302 after passing through at least one fixed pulley of another set of fixed pulleys, the rope fixing assembly one 301 and the rope fixing assembly two 302 are arranged opposite to each other along a diagonal of the top of the car 7, and correspondingly, the reversing pulley set 2 is also arranged opposite to each other along a diagonal of the top of the car 7, so that the steel belt is connected to a corner of the car, forming a more stable connection structure. The elevator structure of the embodiment is simple and stable in operation.

[0033] In the embodiment, a guide pulley 15 is arranged obliquely above the pulley disc 12, the guide pulley 15 is parallel to the pulley disc 12 in the axial direction and is fixed to the driving member 11 through a pulley seat 151, the steel belt 6 wound on the pulley disc 12 is led out to the car 7 direction after passing through the guide pulley 15, the position of the steel belt 6 is limited, and the smooth operation of the steel belt is ensured.

[0034] In another embodiment, as shown in Figures 3-4 , the main drive mechanism 1 is arranged at the top of the shaft, the traction paths of the two steel belts 6 are the same, the two steel belts 6 led out from the pulley disc 12 are led downward, reversed to horizontal through the reversing pulley set 2, and then respectively fixedly connected to one of the rope fixing assemblies, the rope fixing assembly one 301 and the rope fixing assembly two 302 are arranged side by side on the top of the car 7. The elevator structure of the embodiment is simpler, especially the requirement for the length or width direction size of the shaft is reduced, the space occupied is small, and the operation is stable.

[0035] The suspension system with a ratio of 1:1 is adopted in the present application, the structure is simple and reliable, the space occupied is small, and the present application is especially suitable for villa scenes with limited shaft space and limited top floor height, and the shaft space utilization rate is greatly improved. The length of the steel belt of the suspension system with a ratio of 1:1 is shortened, the number of winding turns is correspondingly reduced, the winding diameter and the pulley diameter can be correspondingly increased on the premise that the diameter of the wound steel belt is unchanged, the wear and fatigue damage of the steel belt can be reduced, and the service life of the steel belt is prolonged.

[0036] In the above structure, as shown in Figures 10-11 , the winding part 121 is a vortex line curved surface, and the pitch of the vortex line curved surface is equal to the thickness of the steel belt 6. The vortex line is a curve that expands in a spiral shape in a plane. It usually rotates around a center point and gradually moves away from the center point as the rotation angle increases, and the vortex line shows a trend of gradually expanding in shape. The distance of any point on it from the center point is: r=r0+(P / 360)*θ, wherein, as shown in Figure 11 , r0 is the distance of the starting point from the center point, P is the pitch, and θ is the cumulative rotation angle, and the pitch P is equal to the thickness of the steel belt.Figure 11 The center double-dot dashed line is a circle with r0 as the radius, and the spiral line surface of the winding part gradually moves away from the center point as the rotation angle increases, and the distance from the circle with r0 as the radius gradually increases. In this embodiment, the steel belt is 3 mm, that is, P = 3 mm, and when the steel belt winds one circle and returns to the starting point, the radius r = r0 + P, that is, the value of r is just 3 mm larger than that of the first layer of wound steel belt. At this time, the second circle of steel belt is continuously wound without any sudden change in the radius value. No matter how many layers are wound, the radius change of all the wound steel belts follows the above formula, which is a linearly changing value and will not suddenly change, avoiding elevator running jitter and ensuring stable elevator operation.

[0037] As shown in Figures 8-11 , the wheel disc 12 includes a wheel disc body 122 and a pressing plate 123. The wheel disc body 122 is externally provided with a flat mouth 1221, and the pressing plate 123 is inlaid at the flat mouth 1221 and detachably connected with the wheel disc body 122. The outer side of the pressing plate 123 and the outer side of the wheel disc body 122 are both curved surfaces, forming a winding part 121. A pressing groove 125 is arranged between the pressing plate 123 and the flat mouth 1221 of the wheel disc body 122. One end of the steel belt 6 is arranged in the pressing groove 125 and fixedly connected with the wheel disc 12 through the pressing plate 123.

[0038] As shown in Figures 9-11 , the connection between one side of the flat mouth 1221 and the winding part 121 is the starting winding position of the steel belt 6 on the winding part 121. The starting winding position is provided with a round corner 1222 which is connected with the winding part 121 in a circular arc transition. The radius of the round corner 1222 is greater than the minimum bending radius of the steel belt 6. The steel belt 6 is wound on the wheel disc 12. Compared with being directly wound on the main machine shaft, the winding outer diameter is increased. In this embodiment, the ratio of the outer diameter of the wheel disc 12 to the outer diameter of the main machine shaft 13 is greater than 2:1, that is, the outer diameter of the wheel disc 12 is greater than twice the outer diameter of the main machine shaft 13. The increase of the winding outer diameter reduces the limitation on the bending radius of the steel belt, expands the use range of the steel belt, and correspondingly increases the radius of the round corner 1222 of the wheel disc 12 at the starting winding position. The circular arc radius is greater than the minimum bending radius of the steel belt, which avoids the steel belt bulging caused by the large bending angle at the starting winding, improves the stability and comfort of the elevator operation. In addition, the increase of the winding outer diameter can also improve the running speed of the steel belt, thereby improving the lifting speed of the elevator.

[0039] As shown in Figures 8-9 , in order to avoid the steel belt from deviating during the lifting of the car, two baffles 124 are arranged on the two sides of the wheel disc 12. The two baffles 124 protrude from the winding part 121 and form a limiting space for the winding steel belt 6, which provides guidance and limitation for the winding of the steel belt, prevents the steel belt from deviating during operation, and effectively ensures the stability and smoothness of the winding of the steel belt.

[0040] Grooves are provided on both sides of the roulette body 122, and the baffle 124 is annular and is sleeved on the outside of the groove. The baffle 124 is fixedly connected to the roulette body 122 by fasteners passing through the roulette body 122 and the two baffles 124. The installation is simple and convenient, and can improve the strength and stability of the overall structure of the roulette 12.

[0041] In addition, if Figures 8-9 As shown, a U-shaped pressing groove 1241 is provided on the inner side of the baffle 124, opposite to the flat opening 1221. The bottom of the U-shaped pressing groove 1241 is an arc-shaped shape that matches the outer curved surface of the pressing plate 123. The two ends of the pressing plate 123 extend into the U-shaped pressing grooves 1241 of the two baffles 124. The provision of the U-shaped pressing grooves 1241 can improve the pressing strength of the pressing plate 123 on the steel belt 6, ensuring the stability of the connection between the steel belt 6 and the wheel disc 12.

[0042] In addition, the winding portion 121 of the present invention is formed by wire cutting. The specific processing method includes the following steps: S1, wire cutting the spiral curved surface of the winding portion 21; S2, wire cutting the press-fitting groove 25 to cut the wheel disc 2 into the wheel disc body 22 and the pressure plate 23. Since the curved surface cannot be machined by turning, it requires a four-axis or five-axis CNC machining method, which is difficult and expensive to machine. Compared with four-axis or five-axis CNC machining methods, wire cutting greatly reduces the difficulty and cost of machining, improves the process feasibility, and is conducive to implementation and application.

[0043] The main engine power mechanism of the present invention has better structural stability, is easy to disassemble and assemble, and is conducive to later repair and maintenance; and a winding pulley with a spiral curved surface is provided to prevent sudden changes in the winding radius of the steel belt, avoid the elevator operation jitter caused by the sudden change in winding, and improve the stability and comfort of the elevator operation.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0045] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A strong drive villa elevator, characterized by: It includes a main engine driving mechanism, a reversing wheel group and a rope end fixing mechanism arranged on the top of the car. The main engine driving mechanism includes a driving member and a wheel disc. The driving member drives the main engine shaft to rotate. The wheel disc is fixedly connected to the main engine shaft. A winding portion for winding a steel belt is provided on the outer side of the wheel disc. The winding portion is a spiral line surface. The pitch of the spiral line surface is equal to the thickness of the steel belt. The steel belt is led out from the wheel disc and reversed to the horizontal through the reversing wheel group, and then connected to the rope end fixing mechanism.

2. The strong drive villa elevator according to claim 1 is characterized in that: There are two wheel discs, which are symmetrically arranged on both sides of the driving member, and the two wheel discs are fixed at both ends of the main engine shaft.

3. The strong drive villa elevator according to claim 1 is characterized in that: The wheel disc includes a wheel disc body and a pressure plate. A flat opening is provided on the outside of the wheel disc body. The pressure plate is inlaid at the flat opening and is detachably connected to the wheel disc body. The outer sides of the pressure plate and the outer sides of the wheel disc body are both curved surfaces, forming a winding part. A press-fitting groove is provided between the pressure plate and the flat opening on the outside of the wheel disc body. One end of the steel belt is provided in the press-fitting groove and is fixedly connected to the wheel disc by press-fitting with the pressure plate.

4. The strong drive villa elevator according to claim 3 is characterized in that: The connection between one side of the flat mouth and the winding part is the starting winding point of the steel strip on the winding part. The starting winding point is provided with a fillet that transitions to the arc of the winding part, and the radius of the fillet is greater than the minimum bending radius of the steel strip.

5. The strong drive villa elevator according to claim 3 is characterized in that: Two baffles are arranged opposite to each other on both sides of the wheel disc, and the two baffles protrude from the winding part to form a limiting space for the winding steel strip.

6. The strong drive villa elevator according to claim 5, characterized in that: The inner side of the baffle is provided with a U-shaped pressing groove arranged opposite to the flat opening, the bottom of the U-shaped pressing groove is an arc shape adapted to the outer curved surface of the pressing plate, and the two ends of the pressing plate extend into the U-shaped pressing grooves of the two baffles.

7. The strong drive villa elevator according to claim 1, characterized in that: The winding portion of the wheel disc is formed by wire cutting.

8. The strong drive villa elevator according to any one of claims 1 to 7, characterized in that: The rope end fixing mechanism includes two rope end fixing components, namely: rope end fixing component 1 and rope end fixing component 2. The rope end fixing component 1 and rope end fixing component 2 are arranged side by side on the top of the car or are arranged opposite to each other along a diagonal corner of the top of the car.

9. The strong drive villa elevator according to claim 8, characterized in that: The main engine driving mechanism is arranged at the bottom of the well, and a fixed pulley group is provided at the top of the well. The fixed pulley group is provided on the support frame, and includes two groups of fixed pulleys arranged axially at intervals along the main engine rotating shaft. The steel belt led out from the pulley is led upward and wrapped around the fixed pulley group, and then led downward and reversed to the horizontal by the reversing wheel group and fixedly connected to the rope head fixing assembly.

10. The strong drive villa elevator according to claim 9, characterized in that: The two steel belts have different traction paths. The steel belt wrapped around one of the pulleys is connected to the rope end fixing component 1 after passing through at least one fixed pulley of a group of fixed pulleys. The steel belt wrapped around the other pulley is connected to the rope end fixing component 2 after passing through at least one fixed pulley of another group of fixed pulleys. The rope end fixing component 1 and the rope end fixing component 2 are arranged opposite to each other along a diagonal angle on the top of the car.

11. The strong drive villa elevator according to claim 8, characterized in that: The main driving mechanism is arranged at the top of the shaft, and the two steel belts have the same traction path. The steel belts led out from the pulley are led downward and redirected to the horizontal by the reversing wheel group, and are fixedly connected to the rope end fixing assembly. The rope end fixing assembly 1 and the rope end fixing assembly 2 are arranged side by side on the top of the car.

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