Bridge structure elevator traction machine

Abstract

The present invention provides a bridge-type elevator traction machine, which makes the whole machine run smoothly and the assembly of the whole equipment is quick and convenient. It includes a machine base, a stator housing, a main shaft, a brake, and a traction wheel; the inner cavity of the machine base is used to place the traction wheel, the machine base includes a traction wheel placement cavity, and bearing positioning holes at the center positions of both ends, the main shaft is supported by corresponding bearings and arranged in corresponding bearing positioning holes, and the part of the main shaft arranged in the traction wheel placement cavity is fixedly sleeved with the traction wheel; the front end surface of the machine base is fixedly installed with the stator housing, the side of the machine base facing the stator housing is integrated with a front packaging plate, and the other side of the machine base away from the stator housing is integrated with a rear packaging plate, the inner cavity ring wall of the stator housing is fixedly provided with a stator assembly, and the main shaft is fixedly sleeved with a rotor structure at the position corresponding to the stator assembly; the main shaft passes through the rear packaging plate and is convex at the rear.

Description

Technical Field

[0001] The present invention relates to the technical field of traction machine structures, in particular to a bridge-type elevator traction machine. Background Art

[0002] There are two types of assembling methods of the traction wheel in the traction machine in the prior art. One is to share a cavity with the motor, so that the main shaft passes through the rotor of the motor and then the traction wheel is installed, and an avoidance gap is provided at the corresponding outer shell of the traction wheel to facilitate the assembly of the wire rope and the traction wheel. The other is that the traction wheel is directly assembled with the output end of the rotor, and the stator of the motor is fixedly arranged at the center axis, so that the rotor rotates around the stator and drives the traction wheel to rotate at the same time. Regardless of the structure, the traction wheel is arranged on the relatively outer side of the entire traction machine, which makes the rotational force of the traction wheel biased to one side of the traction machine during the operation of the entire structure, and the operation of the traction machine is relatively stable. Summary of the invention

[0003] In view of the above problems, the present invention provides a bridge-type structure elevator traction machine, which enables the whole machine to run smoothly and the assembly of the whole equipment is quick and convenient.

[0004] The bridge-type elevator traction machine is characterized in that it includes a machine base, a stator housing, a main shaft, a brake, and a traction wheel;

[0005] The inner cavity of the machine base is used to place the traction wheel. The machine base includes a traction wheel placement cavity and bearing positioning holes at the center positions of both ends. The main shaft is supported by corresponding bearings and arranged in the corresponding bearing positioning holes. The part of the main shaft arranged in the traction wheel placement cavity is fixedly sleeved with the traction wheel.

[0006] The stator housing is fixedly mounted on the front end surface of the base, a front packaging plate is integrated on one side of the base facing the stator housing, and a rear packaging plate is integrated on the other side of the base away from the stator housing. A stator assembly is fixedly mounted on the inner cavity ring wall of the stator housing, and a rotor structure is fixedly sleeved on the main shaft at a position corresponding to the stator assembly.

[0007] The main shaft passes through the rear packaging plate and convexes backward, the convex part of the main shaft is fixedly sleeved with a brake disc, the outer surface of the rear packaging plate is fixedly mounted with the brake, the electromagnetic control structure of the brake drives the brake pad to move away from or fit into the brake disc for braking, and avoidance gaps are provided on both sides of the machine base corresponding to the rope of the traction wheel, and the height of the avoidance gap ensures that the traction wheel can be placed in the inner cavity of the machine base.

[0008] It is further characterized by:

[0009] The outer circumference of the front end surface of the base is provided with a forward convex guide ring, and the outer circumference of the rear end surface of the stator housing is provided with an inner concave guide ring groove, and the forward convex guide ring is buckled and installed in the inner concave guide ring groove to ensure the concentricity of the base and the stator housing;

[0010] Supporting feet are respectively arranged at both sides of the two ends of the bottom of the machine base, and the supporting feet are provided with through locking holes, which are fixedly connected to the structure below, so that the position of the entire traction machine is stable and reliable;

[0011] A first bearing positioning hole is provided at the center of the front packaging plate, and a second bearing positioning hole is provided at the center of the rear packaging plate. The first bearing is placed in the first bearing positioning hole, and the second bearing is placed in the second bearing positioning hole. A first separation boss is provided at a position of the main shaft corresponding to the traction wheel and the first bearing, and a second separation boss is provided at a position of the main shaft corresponding to the traction wheel and the second bearing. The diameter of the first separation boss is larger than the inner diameter of the inner ring of the first bearing and larger than the mounting hole diameter of the traction wheel, and the diameter of the second separation boss is larger than the inner diameter of the inner ring of the second bearing and smaller than the mounting hole diameter of the traction wheel, so as to ensure that the main shaft passes through the traction wheel in sequence and is assembled with the first bearing and the second bearing;

[0012] A stop cover is fixedly mounted at the front end of the main shaft corresponding to the outer end surface of the rotor structure to ensure that the axial position of the rotor structure is stable and reliable;

[0013] The mounting bolts of the brake are fixedly mounted at corresponding positions of the rear packaging plate to ensure a stable and reliable installation of the brake;

[0014] The front end surface of the stator housing is encapsulated with an inspection cover plate, which is fixed to the front end surface of the stator housing by bolts to ensure convenient inspection of the motor part;

[0015] A lifting pull ring is also fixedly provided on the upper part of the machine base;

[0016] The front encapsulation plate and the rear encapsulation plate are connected via a reinforcing connecting plate at the middle position in the height direction corresponding to the avoidance gap. The reinforcing connecting plate is used to enhance the overall strength of the entire machine base and will not hinder the operation of the rope.

[0017] After adopting the above technical scheme, the traction wheel is arranged between the brake and the motor. When the traction machine is working, the traction wheel rotates to ensure the stability of the entire structure. The stator housing and the machine base, the brake, and the main shaft are packaged separately. When assembling, the position of the machine base is fixed first, and then the traction wheel is placed, so that the main shaft and the traction wheel are assembled in place, and then the bearings are positioned, and finally the stator housing and the brake are installed respectively, which makes the assembly of the entire structure quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 for Figure 1 Left view of

[0021] Figure 4 1 is a schematic diagram of a side view cross-sectional structure;

[0022] The names corresponding to the serial numbers in the figure are as follows:

[0023] Machine base 1, forward convex guide ring 101, stator housing 2, concave guide ring groove 201, main shaft 3, first separation boss 31, second separation boss 32, brake 4, electromagnetic control structure 41, brake pad 42, mounting bolt 43, traction wheel 5, traction wheel placement cavity 6, front packaging plate 7, first bearing positioning hole 71, rear packaging plate 8, second bearing positioning hole 81, stator assembly 9, rotor structure 10, brake disc 11, avoidance gap 12, supporting foot 13, through locking hole 14, first bearing 15, second bearing 16, stop cover 17, encoder 18, inspection cover 19, bolt 20, lifting pull ring 21, and reinforcing connecting plate 22. DETAILED DESCRIPTION

[0024] Bridge structure elevator traction machine, see Figure 1-Figure 4 : It includes a base 1, a stator housing 2, a main shaft 3, a brake 4, and a traction sheave 5;

[0025] The inner cavity of the machine base 1 is used to place the traction wheel 5. The machine base 1 includes a traction wheel placement cavity 6 and bearing positioning holes at the center positions of both ends. The main shaft 3 is supported by corresponding bearings and arranged in corresponding bearing positioning holes. The part of the main shaft 3 arranged in the traction wheel placement cavity 6 is fixedly sleeved with the traction wheel 5.

[0026] The front end surface of the base 1 is fixedly provided with a stator housing 2, a side surface of the base 1 facing the stator housing 2 is integrated with a front packaging plate 7, and the other side surface of the base 1 away from the stator housing 2 is integrated with a rear packaging plate 8. A stator assembly 9 is fixedly provided on the inner cavity annular wall of the stator housing 2, and a rotor structure 10 is fixedly provided on the main shaft 3 corresponding to the position of the stator assembly 9;

[0027] The main shaft 3 passes through the rear packaging plate 8 and convexes backward. The convex part of the main shaft 3 is fixedly sleeved with a brake disc 11. The outer surface of the rear packaging plate 8 is fixedly mounted with a brake 4. The electromagnetic control structure 41 of the brake 4 drives the brake pad 42 to move away from or fit into the brake disc 11 for braking. Avoidance gaps 12 are provided on both sides of the base 1 corresponding to the rope of the traction wheel 5. The height of the avoidance gaps 12 ensures that the traction wheel 5 can be placed in the inner cavity of the base 1.

[0028] A convex guide ring 101 is arranged on the outer circumference of the front end surface of the base 1, and a concave guide ring groove 201 is arranged on the outer circumference of the rear end surface of the stator housing 2. The convex guide ring 101 is buckled and installed in the concave guide ring groove 201 to ensure the concentricity of the base 1 and the stator housing 2.

[0029] Supporting feet 13 are respectively arranged at both sides of the bottom of the base 1. The supporting feet 13 are provided with through locking holes 14. The through locking holes 14 are fixedly connected to the structure below, so that the position of the entire traction machine is stable and reliable.

[0030] A first bearing positioning hole 71 is provided at the center of the front packaging plate 7, a second bearing positioning hole 81 is provided at the center of the rear packaging plate 8, the first bearing 15 is placed in the first bearing positioning hole 71, the second bearing 16 is placed in the second bearing positioning hole 81, a first separation boss 31 is provided at a position of the main shaft 3 corresponding to the traction wheel 5 and the first bearing 15, a second separation boss 32 is provided at a position of the main shaft 3 corresponding to the traction wheel 5 and the second bearing 16, the diameter of the first separation boss 31 is larger than the inner diameter of the inner ring of the first bearing 15 and larger than the mounting hole diameter of the traction wheel 5, the diameter of the second separation boss 32 is larger than the inner diameter of the inner ring of the second bearing 16 and smaller than the mounting hole diameter of the traction wheel 5, so as to ensure that the main shaft 5 passes through the traction wheel 5 in sequence and is assembled with the first bearing 15 and the second bearing 16;

[0031] A stop cover 17 is fixedly mounted at the front end of the main shaft 3 corresponding to the outer end surface of the rotor structure 10 to ensure that the axial position of the rotor structure 10 is stable and reliable;

[0032] The mounting bolts 43 of the brake 4 are fixed to the corresponding positions of the rear packaging plate 8 to ensure the stable and reliable installation of the brake 4;

[0033] The front end surface of the stator housing 2 is encapsulated with an inspection cover 19, which is fixed to the front end surface of the stator housing 2 by bolts 20 to ensure convenient inspection of the motor part;

[0034] A lifting pull ring 21 is also fixedly provided on the upper part of the machine base 1;

[0035] The front packaging plate 7 and the rear packaging plate 8 are connected by a reinforcing connecting plate 22 at the middle position in the height direction corresponding to the avoidance gap 12. The reinforcing connecting plate 22 is used to enhance the overall strength of the entire machine base 1 and will not hinder the operation of the rope;

[0036] It also includes an encoder 18, which passes through the central avoidance hole of the brake and is fixed to the rear end surface of the main shaft 3.

[0037] Its working principle is as follows: the traction wheel is arranged between the brake and the motor. When the traction machine is working, the traction wheel rotates to ensure the stability of the entire structure. The stator housing and machine base, brake, and main shaft are packaged separately. When assembling, first fix the position of the machine base, then place the traction wheel, assemble the main shaft and traction wheel in place, then position the bearings, and finally install the stator housing and brake respectively, which makes the assembly of the entire structure quick and convenient.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Bridge-type elevator traction machine, characterized in that: It includes a machine base, a stator housing, a main shaft, a brake, and a traction wheel; The inner cavity of the machine base is used to place the traction wheel. The machine base includes a traction wheel placement cavity and bearing positioning holes at the center positions of both ends. The main shaft is supported by corresponding bearings and arranged in the corresponding bearing positioning holes. The part of the main shaft arranged in the traction wheel placement cavity is fixedly sleeved with the traction wheel. The stator housing is fixedly mounted on the front end surface of the base, a front packaging plate is integrated on one side of the base facing the stator housing, and a rear packaging plate is integrated on the other side of the base away from the stator housing. A stator assembly is fixedly mounted on the inner cavity ring wall of the stator housing, and a rotor structure is fixedly sleeved on the main shaft at a position corresponding to the stator assembly. The main shaft passes through the rear packaging plate and is rearwardly convex, a brake disc is fixedly sleeved on the rear convex part of the main shaft, the brake is fixedly mounted on the outer surface of the rear packaging plate, the electromagnetic control structure of the brake drives the brake pad to move away from or fit the brake disc for braking, and avoidance gaps are arranged at the positions on both sides of the machine base corresponding to the rope of the traction wheel, and the height of the avoidance gap ensures that the traction wheel can be placed in the inner cavity of the machine base; A convex guide ring is arranged on the outer circumference of the front end surface of the base, and a concave guide ring groove is arranged on the outer circumference of the rear end surface of the stator housing, and the convex guide ring is buckled and installed in the concave guide ring groove; Supporting feet are respectively arranged at both sides of the two ends of the bottom of the base, and penetrating locking holes are arranged on the supporting feet, and the penetrating locking holes are fixedly connected to the structure below.

2. The bridge-type elevator traction machine according to claim 1, characterized in that: A first bearing positioning hole is provided at the center position of the front packaging plate, and a second bearing positioning hole is provided at the center position of the rear packaging plate, the first bearing is placed in the first bearing positioning hole, and the second bearing is placed in the second bearing positioning hole, a first separating boss is provided at a position of the main shaft corresponding to the traction wheel and the first bearing, and a second separating boss is provided at a position of the main shaft corresponding to the traction wheel and the second bearing, the diameter of the first separating boss is larger than the inner diameter of the inner ring of the first bearing and larger than the mounting hole diameter of the traction wheel, and the diameter of the second separating boss is larger than the inner diameter of the inner ring of the second bearing and smaller than the mounting hole diameter of the traction wheel.

3. The bridge-type elevator traction machine according to claim 1, characterized in that: A stop cover is fixedly mounted at the front end of the main shaft corresponding to the outer end surface of the rotor structure.

4. The bridge-type elevator traction machine according to claim 1, characterized in that: The mounting bolts of the brake are fixed at corresponding positions of the rear packaging plate.

5. The bridge-type elevator traction machine according to claim 1, characterized in that: The front end surface of the stator housing is encapsulated with an inspection cover plate, and the inspection cover plate is fixed to the front end surface of the stator housing by bolts.

6. The bridge-type elevator traction machine according to claim 1, characterized in that: A lifting pull ring is also fixedly provided on the upper part of the machine base.

7. The bridge-type elevator traction machine according to claim 1, characterized in that: The front packaging plate and the rear packaging plate are connected via a reinforcing connecting plate at a middle position in a height direction corresponding to the avoidance notch.

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