A traction machine

Abstract

This utility model provides a traction machine that ensures the width of the car is compatible with the hoistway and that the braking of the traction machine is reliable and stable. It includes: a base comprising an outer circumference, a front end ring surface, a middle circumference, an inner end ring surface, and a base; the front end of the outer circumference connects to the radial outer circle of the front end ring surface, and the front end of the middle circumference connects to a corresponding position on the front end ring surface; the cavity formed by the outer circumference, the front end ring surface, and the middle circumference includes a stator positioning ring cavity and a magnet wheel placement cavity; a rear end cover; a traction sheave; an encoder; a motor stator; a motor rotor including a magnet wheel portion and a turntable portion; two brakes, each including a mounting base and brake pads, with brake pads provided at the output end of the mounting base; and a rotating shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator traction machine structure, specifically a traction machine. Background Technology

[0002] Existing traction machines use brakes that are fixed on both sides of the middle section of the machine base in a horizontal arrangement to brake the rotating sheaves. This type of traction machine requires a separate machine room for installation because the lateral brakes make the overall width of the traction machine greater than the width of the car. However, when no machine room is provided at the top of the hoistway, the traction machine needs to be fixed at the top. In this case, the lateral brakes require a relatively smaller car width, which is detrimental to passenger comfort and the maximum volume transfer of goods. Therefore, there is an urgent need to improve the existing horizontally arranged brakes on traction machines so that they can be adapted to elevator installation in machine-room-less hoistways. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a traction machine that ensures the width of the car is adapted to the shaft and that the braking of the traction machine is reliable and stable.

[0004] A traction machine, characterized in that it comprises: The base includes an outer ring, a front end ring, a middle ring, an inner end ring, and a base. The front end of the outer ring is connected to the radial outer circle of the front end ring, and the front end of the middle ring is connected to the corresponding position of the front end ring. The cavity formed by the outer ring, the front end ring, and the middle ring includes a stator positioning ring cavity and a magnet wheel placement cavity. Rear end cover; Traction wheel; Encoder; Motor stator; The motor rotor includes a magnet wheel section and a turntable section; Two brakes, each including a mounting base and brake pads, wherein the output end of the mounting base is provided with brake pads; And the pivot; The motor stator is fixedly installed in the stator positioning ring cavity. A magnetic wheel portion is arranged around the circumference of the magnetic wheel placement cavity. The outer ring of the turntable portion is fixedly connected to the rear outer ring of the magnetic wheel portion. The central area of ​​the turntable portion is fixedly sleeved to the corresponding axial position of the rotating shaft. A traction wheel is fixedly sleeved on the front convex end of the rotating shaft. The portion of the rotating shaft built into the inner cavity of the machine base is fixedly sleeved with the turntable portion. An encoder is fixedly installed on the rear convex end face of the rotating shaft. Brake mounting seats are respectively provided on the top two sides of the outer ring. The mounting surfaces of the brake mounting seats are arranged at an angle. A clearance notch is provided in the central area of ​​each brake mounting seat. The mounting body of each set of brakes is fixed to the mounting surface of the corresponding brake mounting seat, and the brake pad passes through the clearance notch and faces the corresponding position of the outer circumference of the magnet wheel. After assembly, neither of the two sets of brakes protrudes outward from the width area of ​​the entire base.

[0005] Its further features are: The surface area of ​​the brake pad facing the magnet wheel is a contoured arc structure, which ensures that the brake pad fits against the outer circumference of the magnet wheel and performs full braking when braking. The brake is an electromagnetically controlled brake. When energized, the brake pads retract and do not contact the outer circumference of the magnet wheel. When de-energized, the brake pads adhere to the outer circumference of the magnet wheel for braking. The two sets of brakes are symmetrically arranged about the width of the machine base, and the brakes after assembly do not protrude beyond the width of the entire machine base, ensuring that the assembly of the entire traction machine will not affect the normal arrangement of the car. The rear end cover is provided with a clearance hole corresponding to the outward protrusion of the rotating shaft, and the rear end cover is fixed to the rear end ring edge of the outer ring by bolts. The rear end cover is also provided with two sets of fan mounting positions. The two sets of fans are fixedly mounted in the corresponding fan mounting positions, and each set of fans blows air towards the inner cavity of the base. The rear end cover is also provided with several weight-reducing fan-shaped holes, which are also used for the air passage for heat exchange.

[0006] After adopting the above technical solution, obliquely installed brakes are respectively set on both sides of the top area of ​​the machine base, and the brakes after assembly do not protrude beyond the width of the entire machine base. The brake pads of the brakes face or move away from the outer circle of the magnet wheel to perform braking operations. This ensures that the width of the traction machine will not be greater than the width of the car, ensuring that the width of the car is compatible with the hoistway and that the braking of the traction machine is reliable and stable. Attached Figure Description

[0007] Figure 1 This is the front view of the present invention; Figure 2 The three-dimensional representation of this utility model Figure 1 ; Figure 3 for Figure 2 A schematic diagram of the AA cross-section structure; Figure 4 This is a cross-sectional structural diagram of the present invention. Figure 5 The three-dimensional representation of this utility model Figure 2 ; The names corresponding to the serial numbers in the diagram are as follows: 10. Base, 11. Outer ring, 12. Front ring, 13. Middle ring, 14. Inner ring, 15. Base, 101. Stator positioning ring cavity, 102. Magnet wheel placement cavity, 20. Rear end cover, 20. Weight reduction fan-shaped hole, 201. Traction wheel, 30. Encoder, 40. Motor stator, 50. Motor rotor, 60. Magnet wheel section, 61. Turntable section, 62. Brake, 70. Mounting body, 71. Brake pad, 72. Shaft, 80. Brake mounting seat, 90. Mounting surface, 91. Clearance notch, 92. Fan, 100. Detailed Implementation

[0008] A traction machine, see Figures 1-5 It includes a base 10, a rear end cover 20, a traction sheave 30, an encoder 40, a motor stator 50, a motor rotor 60, two brakes 70, and a rotating shaft 80; The base 10 includes an outer ring 11, a front end ring 12, a middle ring 13, an inner end ring 14, and a base 15. The front end of the outer ring 11 is connected to the radial outer circle of the front end ring 12, and the front end of the middle ring 13 is connected to the corresponding position of the front end ring 12. The cavity formed by the outer ring 11, the front end ring 12, and the middle ring 13 includes a stator positioning ring cavity 101 and a magnet wheel placement cavity 102. The motor rotor 60 includes a magnet wheel part 61 and a turntable part 62; Each set of brakes 70 includes a mounting base 71 and a brake pad 72, with the output end of the mounting base 71 provided with the brake pad 72. The stator 50 is fixedly installed in the stator positioning ring cavity 101. The magnetic wheel placement cavity 102 forms a circumference with a magnetic wheel part 61. The outer ring of the turntable part 62 is fixedly connected to the rear outer ring of the magnetic wheel part 61. The central area of ​​the turntable part 62 is fixedly sleeved to the corresponding axial position of the rotating shaft 80. The front convex end of the rotating shaft 80 is fixedly sleeved with a traction wheel 30. The part of the rotating shaft 80 built into the inner cavity of the base 10 is fixedly sleeved with the turntable part 62. The rear convex end face of the rotating shaft 80 is fixedly installed with an encoder 40. Brake mounting seats 90 are respectively provided on the top two sides of the outer ring 11. The mounting surface 91 of the brake mounting seat 90 is arranged at an angle. A clearance notch 92 is provided in the central area of ​​each brake mounting seat 90. The mounting body 71 of each set of brakes 70 is fixed to the mounting surface 91 of the corresponding position of the brake mounting seat 90, and the brake pad 72 passes through the clearance notch 92 and faces the corresponding position of the outer circumference of the magnet wheel part 61. After being assembled, neither of the two sets of brakes 90 protrudes outward from the width area of ​​the entire base 10.

[0009] In a specific embodiment, the surface area of ​​the brake pad 72 facing the magnet wheel portion 61 is a contoured arc surface structure, which ensures that the brake pad 72 fits against the outer circumference of the magnet wheel portion 61 and performs sufficient braking in the braking state. The brake 70 is an electromagnetically controlled brake. When energized, the brake pad 72 retracts and does not contact the outer circumference of the magnet wheel part 61. When de-energized, the brake pad 72 adheres to the outer circumference of the magnet wheel part 61 for braking. The two sets of brakes 70 are symmetrically arranged about the width of the base 10, and the brakes 70 after assembly do not protrude beyond the width of the entire base 10, ensuring that the assembly of the entire traction machine will not affect the normal arrangement of the car. The rear end cover 20 is provided with a clearance hole corresponding to the outward protrusion of the rotating shaft 80, and the rear end cover 20 is fixed to the rear end ring edge of the outer ring 11 by bolts. The rear end cover 20 is also provided with two sets of fan mounting positions. The two sets of fans 100 are fixedly mounted in the corresponding fan mounting positions, and each set of fans 100 blows air towards the inner cavity of the base. The rear end cover 20 is also provided with several weight-reducing fan-shaped holes 201, which are also used for the airflow of heat exchange.

[0010] The principle is as follows: On both sides of the top area of ​​the machine base, there are obliquely installed brakes. After assembly, the brakes do not protrude beyond the width of the entire machine base. The brake pads of the brakes face or move away from the outer circular surface of the magnet wheel to perform braking operations. This ensures that the width of the traction machine will not exceed the width of the car, ensuring that the width of the car is compatible with the shaft and that the braking of the traction machine is reliable and stable.

[0011] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0012] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A traction machine, characterized in that, It includes: The base includes an outer ring, a front end ring, a middle ring, an inner end ring, and a base. The front end of the outer ring is connected to the radial outer circle of the front end ring, and the front end of the middle ring is connected to the corresponding position of the front end ring. The cavity formed by the outer ring, the front end ring, and the middle ring includes a stator positioning ring cavity and a magnet wheel placement cavity. Rear end cover; Traction wheel; Encoder; Motor stator; The motor rotor includes a magnet wheel section and a turntable section; Two brakes, each including a mounting base and brake pads, wherein the output end of the mounting base is provided with brake pads; And the pivot; The motor stator is fixedly installed in the stator positioning ring cavity. A magnetic wheel portion is arranged around the circumference of the magnetic wheel placement cavity. The outer ring of the turntable portion is fixedly connected to the rear outer ring of the magnetic wheel portion. The central area of ​​the turntable portion is fixedly sleeved to the corresponding axial position of the rotating shaft. A traction wheel is fixedly sleeved on the front convex end of the rotating shaft. The portion of the rotating shaft built into the inner cavity of the machine base is fixedly sleeved with the turntable portion. An encoder is fixedly installed on the rear convex end face of the rotating shaft. Brake mounting seats are respectively provided on the top two sides of the outer ring. The mounting surfaces of the brake mounting seats are arranged at an angle. A clearance notch is provided in the central area of ​​each brake mounting seat. The mounting body of each set of brakes is fixed to the mounting surface of the corresponding brake mounting seat, and the brake pad passes through the clearance notch and faces the corresponding position of the outer circumference of the magnet wheel. After assembly, neither of the two sets of brakes protrudes outward from the width area of ​​the entire base.

2. A traction machine according to claim 1, characterized in that: The area of ​​the brake pad facing the magnet wheel has a contoured arc surface structure.

3. A traction machine according to claim 1 or 2, characterized in that: The brake is an electromagnetically controlled brake. When energized, the brake pads retract to the outer circumference of the part that does not contact the magnet wheel. When de-energized, the brake pads adhere to the outer circumference of the part that does not contact the magnet wheel for braking.

4. A traction machine according to claim 1, characterized in that: The two sets of brakes are symmetrically arranged about the width of the base, and the brakes do not protrude beyond the width of the entire base after assembly.

5. A traction machine according to claim 1, characterized in that: The rear end cover is provided with a clearance hole corresponding to the outward protrusion of the rotating shaft, and the rear end cover is fixed to the rear end ring edge of the outer ring by bolts.

6. A traction machine according to claim 1, characterized in that: The rear end cover is also provided with two sets of fan mounting positions. The two sets of fans are fixedly mounted in the corresponding fan mounting positions, and each set of fans blows air towards the inner cavity of the base. The rear end cover is also provided with several weight-reducing fan-shaped holes, which are also used for the air passage for heat exchange.

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