Driving main machine for lifting of elevator and elevator

Abstract

The utility model discloses an elevator lifting driving host and an elevator, the elevator lifting driving host comprises a rack with an inverted U-shaped structure, a host shaft is rotatably mounted between two side walls of the rack, and the host shaft is driven by end driving power to rotate; a guide wheel is mounted at the top of the rack, the axial direction of the guide wheel is parallel to the axial direction of the main machine shaft, and the guide wheel is positioned obliquely above the main machine shaft; a steel belt is wound on the main machine shaft in the rack and is upwards led out after passing through a guide wheel; the guide wheel is arranged on the main machine, the steel belt is wound and led out through the guide wheel to guarantee the constant rope outlet point of the steel belt, therefore, arrangement of pulleys in a shaft is omitted, the shaft utilization rate is helped to be guaranteed, and the device is particularly suitable for occasions such as home elevators with limited shaft space.

Description

TECHNICAL FIELD

[0001] The utility model relates to lift technology field especially a drive host computer and elevator of elevator lifting. BACKGROUND

[0002] In the elevator lifting system, the steel band is usually wound on the car, and the car is lifted by traction of the wound steel band.

[0003] In the process of winding the steel band, the rope exit point will change with the change of winding turns. In the prior art, a pulley is usually additionally arranged in the elevator shaft, and the consistency of the steel band exiting the shaft is adjusted and guided by the pulley. However, the pulley arranged in the shaft not only needs to increase the fixing points and other structural members in the shaft, but also occupies the shaft space, which is not suitable for the scene with limited shaft space such as household elevator, and will make the car space too small and the shaft utilization rate low.

[0004] In addition, in the use process of some existing elevators, due to the lack of a steel band limiting mechanism, the steel band is prone to deviation during operation and winding. When the elevator runs fast, the deviated steel band is easy to cause elevator safety accidents. SUMMARY

[0005] To solve the above problems, the application provides a drive host computer and elevator for elevator lifting with reasonable structure, so as to save the layout of the pulley in the shaft, help to protect the shaft utilization rate, and especially suitable for the scene with limited shaft space such as household elevator.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A drive host computer for elevator lifting, comprising an inverted U-shaped structure rack, a main shaft rotatably installed between the two side walls of the rack, the main shaft being driven to rotate by an end driving power; a guide wheel is installed on the top of the rack, the axial direction of the guide wheel being parallel to the axial direction of the main shaft, and the guide wheel being located obliquely above the main shaft; a steel band is wound around the main shaft in the rack, and the steel band is led out upward after passing through the guide wheel.

[0008] As a further improvement of the above technical scheme:

[0009] A circumferential groove is formed in the guide wheel along the circumferential direction, and the width size of the circumferential groove matches the width of a single steel band; one circumferential groove is formed in the guide wheel, or two or more circumferential grooves corresponding to the steel band are formed in the guide wheel along the axial direction.

[0010] A guide wheel seat is installed on the top surface of the rack, and the guide wheel is rotatably installed on the guide wheel seat.

[0011] The guide wheel seat comprises a bottom plate installed on the top surface of the frame, and support plates are symmetrically installed on the bottom plate at intervals.

[0012] An even number of blocking pieces are axially spaced on the main shaft, and the blocking pieces are paired.

[0013] The outer wall surface of the main shaft is concave to form a flat structure, and a pressing block is arranged at the flat structure.

[0014] Two flat structures are arranged in parallel along the circumference of the main shaft, and a pressing block is arranged at each flat structure.

[0015] A groove is formed in the circumferential surface of the main shaft between the edges of the flat structure, and the width of the groove is matched with the width of the steel belt.

[0016] The flat structure is larger than the width of the steel belt in the length direction of the main shaft, and a fastener is locked to the flat structure from top to bottom through the pressing block.

[0017] An elevator comprises the drive main machine of any one of the above-mentioned elevators, and the drive main machine drives the car to ascend and descend through the winding of the steel belt.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a guide wheel is arranged on the main machine, and the steel belt winding is guided out through the guide wheel to ensure the constant rope exit point of the steel belt, thereby avoiding the arrangement of the pulley in the shaft, helping to guarantee the utilization rate of the shaft, and being especially suitable for the scene of limited shaft space such as household elevators.

[0020] The utility model also has the following advantages:

[0021] The guide wheel is installed on the top surface of the frame through the guide wheel seat, and is a detachable installation structure.

[0022] In the utility model, the blocking pieces can guide and limit the winding of the steel belt during winding, prevent the steel belt from deviating during operation, effectively guarantee the reliability, stability and smoothness of the steel belt winding, and ensure safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 This is a structural diagram of the present invention.

[0024] Figure 2 This is a schematic diagram of the installation of the guide wheel on the drive unit of this utility model.

[0025] Figure 3 This is a schematic diagram of the installation of the guide wheel seat and guide wheel of this utility model.

[0026] Figure 4 This is a schematic diagram of the installation of the baffle plate on the main shaft of this utility model.

[0027] Figure 5 This is a schematic diagram of the steel strip of this utility model wound on the main shaft.

[0028] Figure 6 This is a schematic diagram showing the installation of the baffle and pressure block on the main shaft of this utility model.

[0029] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0030] Figure 8 This is a schematic diagram showing the usage of the drive unit of this utility model in an elevator.

[0031] Figure 9 This is a schematic diagram showing another usage state of the drive unit of this utility model in an elevator.

[0032] The components include: 1. Frame; 2. Main shaft; 3. Drive power; 4. Baffle; 5. Guide wheel seat; 6. Guide wheel; 7. Pressure block; 8. Fastener; 10. Steel belt; 20. Guide wheel; 30. Support frame; 40. Car.

[0033] 11. Connecting block; 12. Connecting foot

[0034] 21. Groove; 22. Planar structure;

[0035] 41. Flange;

[0036] 51. Base plate; 52. Support plate;

[0037] 61. Circumferential groove. Detailed Implementation

[0038] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0039] like Figure 1 and Figure 2As shown, the elevator lifting drive unit of this embodiment includes an inverted U-shaped frame 1, a main shaft 2 is rotatably mounted between the two side walls of the frame 1, and the main shaft 2 is driven to rotate by an end drive power 3; a guide wheel 6 is mounted on the top of the frame 1, the axis of the guide wheel 6 is parallel to the axis of the main shaft 2, and the guide wheel 6 is located diagonally above the main shaft 2; a steel belt 10 is wound around the main shaft 2 located inside the frame 1, and the steel belt 10 is led out upward after passing through the guide wheel 6.

[0040] In this embodiment, by setting guide rollers 6 on the frame 1 of the main unit, the steel belt 10 is wound up and led out through the guide rollers 6 to ensure a constant rope exit point for the steel belt 10, thereby eliminating the need for the existing layout of pulleys in the shaft.

[0041] like Figure 3 As shown, an circumferential groove 61 is formed on the guide wheel 6 along the circumferential direction. The width of the circumferential groove 61 matches the width of a single steel strip 10. The steel strip 10 is drawn out by adhering to the wall of the circumferential groove 61. The circumferential groove 61 restricts the position of the steel strip 10 on the guide wheel 6, thereby effectively ensuring a constant rope exit point after the steel strip 10 is drawn out by the guide wheel 6, ensuring the stability and smooth operation of the steel strip 10 during operation.

[0042] The guide wheel 6 has a circumferential groove 61, or the guide wheel 6 has two or more circumferential grooves 61 that are spaced apart along the axial direction and correspond to the steel strip 10.

[0043] In this embodiment, one or two or more parallel steel belts 10 can be set according to the elevator's usage requirements. The steel belts 10 are led out through the corresponding circumferential grooves 61 on the guide wheel 6.

[0044] A guide wheel seat 5 is mounted on the top surface of the frame 1, and a guide wheel 6 is rotatably mounted on the guide wheel seat 5.

[0045] The guide wheel base 5 includes a base plate 51 mounted on the top surface of the frame 1, and support plates 52 are symmetrically mounted on the base plate 51 at intervals. The guide wheels 6 are rotatably mounted on the ends of the support plates 52.

[0046] In this embodiment, the guide wheel 6 is mounted on the top surface of the frame 1 via the guide wheel seat 5, which is a detachable mounting structure. The guide wheel 6 can be adjusted to be mounted on the left or right relative to the drive host according to the actual installation requirements. Alternatively, the guide wheel 6 and the guide wheel seat 5 can be removed and used when the drive host is mounted on top.

[0047] In this embodiment, the support plate 52 can be installed offset relative to the base plate 51 in the left-right direction, so that the installed guide wheel 6 is located at an obliquely upper position to the left or right of the drive host.

[0048] like Figure 4As shown, an even number of baffles 4 are fitted on the main shaft 2 at axial intervals. The baffles 4 are paired up, and the pairs of baffles 4 form a limiting space for winding the corresponding steel strip 10.

[0049] In this embodiment, the steel strip 10 is wound in a limiting space composed of pairs of baffles 4. During the winding process, the baffles 4 can guide and limit the steel strip 10 during winding, prevent the steel strip 10 from deviating during operation, effectively ensure the reliability, stability and smoothness of the steel strip 10 winding, and ensure safety.

[0050] In this embodiment, the baffle 4 can be an integral ring structure along the circumference, or the baffle 4 can be a ring structure assembled from two semi-ring structures or three or more arc structures; whichever is convenient for the installation and use of the baffle 4, depending on the actual situation.

[0051] In this embodiment, the baffle 4 is an annular sheet structure, and the outer circumferential diameter of the baffle 4 is 1.5-3 times the diameter of the main shaft 2 at the mounting location. The baffle 4, with its relatively large outer diameter, serves two purposes: firstly, it forms a space for accommodating the winding steel strip 10, limiting the winding steel strip 10 on both sides; secondly, it provides reliable winding guidance for the steel strip 10 before winding, ensuring smooth and effective winding.

[0052] like Figure 5 , Figure 6 and Figure 7 As shown, a planar structure 22 is formed by an indentation on the outer wall of the main shaft 2. A pressure block 7 is installed at the planar structure 22. The end of the steel strip 10 is pressed between the pressure block 7 and the planar structure 22. The surface of the pressure block 7, which is away from the planar structure 22, is located on the same circumferential surface as the circumferential wall of the main shaft 2.

[0053] In this embodiment, the clamping and fixing of the end of the steel strip 10 is achieved by the contact between the pressure block 7 and the planar structure 22 on the main shaft 2.

[0054] In this embodiment, the pressure block 7 and the main shaft 2 cooperate to form a split shaft, and their outer circumferences are located on the same circumferential surface, which ensures the effect of the steel strip 10 after winding.

[0055] Two planar structures 22 are arranged parallel to each other along the circumference of the main shaft 2. Each of the two planar structures 22 is equipped with a pressure block 7. The ends of the steel strip 10 are sequentially attached to the two planar structures 22 and then pressed by the corresponding pressure block 7.

[0056] In this embodiment, by setting two pressure blocks 7 and corresponding planar structures 22, the ends of the steel strip 10 are continuously pressed and fixed twice, effectively ensuring the reliability of the fixation of the ends of the steel strip 10.

[0057] In this embodiment, the two planar structures 22 are set to be parallel to each other. While ensuring reliable fixation of the end of the steel strip 10 by double clamping, the bending angle of the steel strip 10 is effectively reduced, which helps to ensure a smooth transition of the overall winding of the steel strip 10.

[0058] A groove 21 is provided on the circumferential surface of the main shaft 2 located between the edges of the planar structure 22. The width of the groove 21 is adapted to the width of the steel strip 10. Two pairs of baffles 4 are installed on the two sides of the groove 21.

[0059] In this embodiment, the groove 21 has a limited depth. In actual operation, the groove 21 positions the initial winding of the steel strip 10 on the main shaft 2. After the baffle 4 is installed, the baffle 4 limits the winding of the steel strip 10.

[0060] The planar structure 22 along the length of the main shaft 2 is larger than the width of the steel strip 10. Fasteners 8 are installed from top to bottom through the pressure block 7 toward the planar structure 22. The fasteners 8 are located on both sides of the width of the steel strip 10.

[0061] In this embodiment, the fasteners 8 of the locking block 7 are located on both sides of the steel strip 10. The locking of the fasteners 8 ensures that the block 7 presses against the steel strip 10. The overall structure is simple, and the ends of the steel strip 10 are easy to disassemble and assemble. The steel strip 10 can be quickly replaced when needed, and the steel strip 10 can be reused.

[0062] In this embodiment, the end of the fastener 8 is lower than the surface of the pressure block 7 to avoid affecting the winding of the steel strip 10 by the fastener 8.

[0063] In this embodiment, the inner edge of the baffle 4 extends laterally in the circumferential direction to form a flange 41. After the fastening bolt passes through the flange 41, it is locked to the main shaft 2. The flanges 41 on both sides of the baffle 4 located in the same groove 21 are arranged opposite to each other. The flanges 41 on the baffle 4 effectively ensure the installation reliability of the baffle 4 on the main shaft 2. The flanges 41 can also be used to press the two ends of the pressure block 7 to the inside, ensuring reliable positioning of the end of the steel strip 10.

[0064] In this embodiment, one end of the main shaft 2 extends out of the frame 1 and is powered by the drive power 3, which is a common rotation drive such as a motor; a brake, encoder and other common components can be installed on the frame 1 at the other end of the main shaft 2 to ensure the use of the elevator.

[0065] In this embodiment, a connecting block 11 is installed between the two walls of the frame 1 located below the main shaft 2 to ensure the structural strength of the frame 1. The bottom ends of the two walls of the frame 1 can also extend downward to form connecting feet 12 to facilitate the installation and fixing of the frame 1.

[0066] In this embodiment, the winding method of the steel strip 10 on the main shaft 2 is as follows: Figure 5 As shown, specifically:

[0067] The end of the steel strip 10 is attached to one of the planar structures 22, and a fixing block 7 is installed on the planar structure 22 by fastener 8. Force is applied to the steel strip 10, causing it to bend and attach to the circumference of the main shaft 2 after passing through the planar structure 22, and then wrap around to the other planar structure 22, attaching to the planar structure 22 and locking the fixing block 7 with fastener 8. This completes the installation of the two fixing blocks 7 on the main shaft 2, and fixes the end of the steel strip 10. Force is applied to the steel strip 10 to bend and attach to the circumference of the main shaft 2 and the outer wall of the fixing block 7, and then it is wound layer by layer. After the steel strip 10 is wound two turns, the baffles 4 on both sides of the steel strip 10 are installed. After the baffles 4 are installed, the steel strip 10 can be wound or unwound normally.

[0068] This embodiment also proposes an elevator, including the elevator lifting drive unit of any of the above, wherein the elevator car 40 is lifted and lowered by the drive unit through the winding of the steel belt 10.

[0069] In practice, the drive unit can be installed at the bottom of the elevator shaft, such as... Figure 8 and Figure 9 As shown, the steel belt 10 wound on the main shaft 2 of the drive host is led upward through the guide wheel 6, and then wound around the guide wheel 20 on the upper support frame 30 of the hoistway. Then, according to the actual traction method, the steel belt 10 is wound from the top wheel set or the bottom wheel set of the car 40. The end of the steel belt 10 is fixed to the support frame 30, so that the car 40 can be raised and lowered by the operation of the drive power 3 through the winding and unwinding of the steel belt 10.

[0070] In practical use, the drive unit can be installed on the left or right side of the lower part of the elevator shaft according to actual needs. The direction of the guide wheel 6 can be adjusted by installing the guide wheel seat 5 on the frame 1. Alternatively, the guide wheel 6 and guide wheel seat 5 can be removed and used in scenarios where the guide wheel 6 is not needed, such as when the drive unit is mounted on top.

[0071] This invention ensures a constant rope exit point for the steel belt while eliminating the need for pulleys inside the shaft, thus helping to maximize shaft utilization. It is particularly suitable for scenarios with limited shaft space, such as home elevators. The overall structure is simplified, making it convenient for actual operation and use, and it is highly practical.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A drive unit for elevator lifting, characterized in that: The frame (1) includes an inverted U-shaped structure. A main shaft (2) is rotatably mounted between the two side walls of the frame (1). The main shaft (2) is driven to rotate by an end drive power (3). A guide wheel (6) is mounted on the top of the frame (1). The axial direction of the guide wheel (6) is parallel to the axial direction of the main shaft (2). The guide wheel (6) is located diagonally above the main shaft (2). A steel belt (10) is wound around the main shaft (2) located inside the frame (1). The steel belt (10) is led out upward after passing through the guide wheel (6).

2. The elevator lifting drive unit as described in claim 1, characterized in that: The guide wheel (6) has an inwardly recessed circumferential groove (61) that matches the width of a single steel strip (10). The guide wheel (6) has one circumferential groove (61) or two or more circumferential grooves (61) that correspond to the steel strip (10) are spaced apart along the axial direction.

3. The elevator lifting drive unit as described in claim 1, characterized in that: The top surface of the frame (1) is equipped with a guide wheel seat (5), and a guide wheel (6) is rotatably mounted on the guide wheel seat (5).

4. The elevator lifting drive unit as described in claim 3, characterized in that: The guide wheel seat (5) includes a base plate (51) installed on the top surface of the frame (1), and support plates (52) are symmetrically installed on the base plate (51) at intervals. The guide wheels (6) are rotatably installed at the ends of the support plates (52).

5. The elevator lifting drive unit as described in claim 1, characterized in that: An even number of baffles (4) are fitted on the main shaft (2) at intervals along the axial direction. The baffles (4) are paired up, and the pairs of baffles (4) form a limiting space for winding the corresponding steel strip (10).

6. The elevator lifting drive unit as described in claim 5, characterized in that: The outer wall of the main shaft (2) is recessed to form a planar structure (22), and a pressure block (7) is installed at the planar structure (22). The end of the steel strip (10) is pressed between the pressure block (7) and the planar structure (22). The surface of the pressure block (7) facing away from the planar structure (22) is on the same circumferential surface as the circumferential wall of the main shaft (2).

7. The elevator lifting drive unit as described in claim 6, characterized in that: Two planar structures (22) are arranged parallel to each other along the circumference of the main shaft (2). Each of the two planar structures (22) is equipped with a pressure block (7). The end of the steel strip (10) is attached to the two planar structures (22) in sequence and then pressed by the corresponding pressure block (7).

8. The elevator lifting drive unit as described in claim 6 or 7, characterized in that: A groove (21) is provided on the circumferential surface of the main shaft (2) located between the edges of the planar structure (22). The width of the groove (21) is adapted to the width of the steel strip (10). Two pairs of baffles (4) are installed on the two sides of the groove (21).

9. The elevator lifting drive unit as described in claim 6, characterized in that: The planar structure (22) along the length of the main shaft (2) is larger than the width of the steel strip (10). Fasteners (8) are installed from top to bottom through the pressure block (7) toward the planar structure (22). The fasteners (8) are located on both sides of the width of the steel strip (10).

10. An elevator, characterized in that: The elevator includes the drive unit for lifting and lowering the elevator as described in any one of claims 1-9, wherein the drive unit drives the car (40) to lift and lower via the winding of the steel belt (10).

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