CN215207946U

CN215207946U - Traction machine base, traction machine and elevator system

Info

Publication number: CN215207946U
Application number: CN202121778247.8U
Authority: CN
Inventors: 邓轶华; 周健强; 谢林涛
Original assignee: Winone Elevator Co Ltd
Current assignee: Winone Elevator Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-17
Anticipated expiration: 2031-07-30

Abstract

The utility model belongs to the technical field of the elevator, more specifically say, relate to a hauler frame, hauler and elevator system. The traction machine base comprises a base, a stator and a rotating shaft, wherein the base is provided with an installation cavity, the stator is integrally formed in the installation cavity, and a rotating space is formed between the periphery of the stator and the side wall of the installation cavity at intervals; the rotating shaft is integrally formed on the stator and is arranged concentrically with the stator, the rotating shaft is provided with a connecting end protruding from the surface of the stator, and the connecting end is used for sleeving the brake wheel. Through with stator and pivot integrated into one piece in the base, pivot and stator and base need not the equipment, do not have assembly error and fit-up gap between the three, and frame compact structure, stability are high, and pivot and the integrative concentric setting of stator, and the concentricity of pivot and stator is higher, and the probability that appears rocking when the braked wheel is rotatory lowers, and rotational stability is higher to for ensureing that the car steadily removes, promote to take the comfort level of elevator and provide the guarantee.

Description

Traction machine base, traction machine and elevator system

Technical Field

The utility model belongs to the technical field of the elevator, more specifically say, relate to a hauler frame, hauler and elevator system.

Background

An elevator, also known as a fixed elevator, refers to a device serving a specific floor in a building for transporting passengers, articles, etc. from one designated floor to another designated floor. The elevator comprises a vertical elevator, a traction machine, a lift car, a traction machine, a passenger seat and a passenger seat, wherein the vertical elevator pulls the lift car to move in the vertical direction vertical to the horizontal plane through the traction machine, the traction machine is used as a core component of the elevator, the running stability of the traction machine can directly influence the comfort level of the elevator, and the riding comfort level of the passenger is one of important indexes for measuring the performance of the elevator.

In the related technology, the outer rotor traction machine is a traction machine which is used more at present, a stator is arranged on a machine base, a coil winding is wound on the stator, a brake wheel, namely a rotor, is rotatably arranged on the stator through a rotating shaft, magnetic steel is arranged on the rotor, when the outer rotor traction machine is used, the coil winding is electrified to be matched with the magnetic steel to drive the brake wheel to rotate, and then the traction wheel for hanging ropes is arranged on the brake wheel, so that the rope moving lift car for hanging the lift car can be rotatably wound and unwound by the drive traction wheel. So, the frame of hauler and the assembly relation between with the braked wheel can produce certain influence to the stationarity of hauler, present hauler, set up the shaft hole on the stator, the pivot is passed through the bearing and is installed in the shaft hole of stator, the braked wheel rethread bearing cup joints in the pivot, so, there is the error in processing and assembly of axle, hole etc., can lead to the braked wheel, the concentricity variation of pivot and stator, thereby lead to the braked wheel to take place to rock when rotatory, influence the stationarity of car operation, and then influence the comfort level of taking of elevator, lead to taking the experience variation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses main aim at provides a hauler frame, hauler and elevator system to the braked wheel of hauler takes place to rock when rotatory among the solution prior art and leads to car operation stationarity variation, influences the technical problem of the comfort level of taking of elevator.

In order to achieve the above object, the utility model adopts the following technical scheme: a traction machine stand comprising:

the base is provided with a mounting cavity;

the stator is arranged in the mounting cavity, the stator and the base are integrally formed, and the periphery of the stator and the side wall of the mounting cavity form a rotating space at intervals;

the rotating shaft is integrally formed with the stator and is arranged concentrically with the stator, the rotating shaft is provided with a connecting end protruding from the surface of the stator, and the connecting end is used for sleeving the brake wheel.

In some embodiments, the base has a front side and a back side which are opposite to each other, the mounting cavity is concavely arranged on the front side, the stator is a cylinder with an opening at one end, the opening end of the stator faces the back side, a rotating space is formed between the outer side wall of the cylinder of the stator and the side wall of the mounting cavity at intervals, the rotating shaft is concentrically arranged at the sealing end of the stator, and the connecting end extends out of the front side.

In some embodiments, the sealing end of the stator is provided with a plurality of ventilation holes penetrating through the back side surface.

In some embodiments, the plurality of ventilation holes have equal hole diameters, and the plurality of ventilation holes are rotationally symmetric with respect to the axis of the shaft.

In some embodiments, the ventilation hole includes two holes with different hole diameters, the number of the two holes is respectively multiple, and one hole with the same hole diameter is rotationally symmetrical relative to the axis of the rotating shaft, and the other hole with the same hole diameter is rotationally symmetrical relative to the axis of the rotating shaft.

In some embodiments, the rotating shaft further has a back end protruding from the sealing end of the stator toward the back side surface, and a plurality of reinforcing ribs are connected between the side wall surface of the back end and the inner side wall of the cylinder of the stator.

In some embodiments, the plurality of ribs are rotationally symmetric about the axis of the shaft.

In some embodiments, the reinforcing ribs are disposed on the sealed end of the stator and the reinforcing ribs are clear of the vent holes;

and/or the reinforcing ribs and the sealing end of the stator are arranged at intervals.

In some embodiments, the stator is formed by the middle of the back side surface being recessed toward the front side surface, and the back side surface is provided with a plurality of through holes at the portion located on the periphery side of the opening end of the stator.

In some embodiments, a first boss and a second boss are protruded from a side wall surface of the connecting end at an interval in the axial direction, the first boss is used for stopping the brake wheel, and the second boss is used for stopping the sleeve bearing of the brake wheel.

In some embodiments, be provided with in the pivot and hold the chamber, hold the chamber and link up the link at least, hold the chamber and be used for holding the encoder.

In some embodiments, the base, the stator, and the shaft are integrally molded.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the hauler frame have one of following technological effect at least: the utility model discloses a tractor frame, it need not the equipment with stator and pivot integrated into one piece in the base, pivot and stator and base, does not have assembly error and fit-up gap between the three, and frame compact structure, stability are better to, pivot and the integrative concentric setting of stator, the concentricity of pivot and stator is higher, and the stability when braked wheel uses the pivot as the rotation of axes is higher. So, can avoid when the braked wheel rotates, because of having the rocking that the fit-up gap leads to, also can avoid because of rocking that pivot and stator and braked wheel three decentraction lead to, improve the rotatory stability of braked wheel, improve the rotational stability of driving sheave to ensure the steady removal of car, promote the comfort level of taking the elevator.

The utility model discloses another technical scheme is: the traction machine comprises a traction wheel, a brake wheel and the traction machine base, wherein the brake wheel is rotatably sleeved at a connecting end, and the traction wheel is fixedly arranged on the brake wheel.

The utility model provides a tractor's beneficial effect lies in: the utility model discloses a traction machine, it is through using the aforesaid with stator and pivot integrated into one piece in the frame of base, there are not assembly gap and assembly error in the frame, and pivot and stator and braked wheel three concentricity are higher, and the braked wheel is rotatory more steady, and the probability greatly reduced that rocks appears in the car removal is hauled through the rope to the driving sheave, and the car removes more steadily.

The utility model discloses a further technical scheme is: an elevator system is provided, which includes the traction machine.

The utility model provides an elevator system's beneficial effect lies in: the utility model discloses an elevator system, through using foretell hauler, the car removes steadily reliably, and the passenger takes experience and can promote.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a traction machine base according to an embodiment of the present application;

fig. 2 is a front view of the machine base of fig. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a rear view of the machine base of FIG. 1;

fig. 5 is a front view of a traction machine stand provided in another embodiment;

fig. 6 is a cross-sectional view of a machine base of a traction machine provided in one embodiment;

fig. 7 is a sectional view of a traction machine stand according to another embodiment;

fig. 8 is a schematic structural view of a traction machine using the traction machine stand shown in fig. 1 in another embodiment;

fig. 9 is a cut-away view of the traction machine shown in fig. 8.

In the figures, the various figures are mainly marked:

10. a machine base; 11. a base; 111. a mounting cavity; 112. a front side; 113. a back side; 114. a through hole; 12. a stator; 121. a rotating space; 122. an open end; 123. sealing the end; 124. a vent hole; 1241. a large-sized hole; 1242. a small-sized hole; 13. a rotating shaft; 131. a connecting end; 1311. a first boss; 1312. a second boss; 132. a back end; 133. an accommodating chamber; 134. connecting holes; 14. reinforcing ribs; 15. supporting legs; 151. erecting ribs; 16. a junction box mounting position; 20. a brake wheel; 30. a traction sheave; 31. a bearing; 311. a bearing gland; 40. an encoder; 50. a coil winding; 60. magnetic steel; 70. a junction box.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to fig. 1 to 9 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Reference throughout the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. The appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like in various places in the specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In an elevator system, an outer rotor tractor is a tractor which is used more at present, and a rotor is arranged outside a shell and is used for being sleeved with a traction sheave, so that the traction sheave is driven to rotate and drag ropes connected with a car, and the car is driven to move. Generally, the external rotor traction machine includes a machine base, a stator mounted on the machine base, a rotor assembly, a traction sheave and a brake, wherein the rotor assembly mainly includes a magnetic steel, a rotating shaft and a rotor (i.e., a brake sheave), a coil winding is wound on the stator, the rotating shaft is mounted in a shaft hole of the stator, the brake sheave is rotatably mounted on the stator through the rotating shaft, the magnetic steel is disposed on the brake sheave, and when the brake sheave is sleeved on the rotating shaft, the magnetic steel and the coil winding are arranged at an interval, the traction sheave is fixedly mounted on the brake sheave and can rotate synchronously with the rotation of the brake sheave, and the brake is mounted on the machine base for braking in cooperation with the brake sheave so as to control the car to accelerate or decelerate or stop moving. When the elevator car is used, the coil winding is electrified and matched with the magnetic steel to drive the brake wheel to rotate, the brake wheel rotates to drive the traction wheel to rotate, and the traction wheel rotates to receive and release the rope for hanging the elevator car so as to drive the elevator car to move.

Therefore, the stability of the tractor is greatly influenced by the assembling relationship between the machine base of the tractor and the brake wheel. Among the correlation technique, the external rotor hauler sets up the shaft hole on the stator usually, the pivot is passed through the bearing and is installed in the shaft hole of stator, the braked wheel rethread bearing cup joints in the pivot, thus, the pivot, the shaft hole of stator and the machining error in the hole that the braked wheel cup jointed with the pivot, and assembly error and fit-up gap between the three, can lead to the braked wheel, the concentricity variation of pivot and stator, lead to the braked wheel to take place to rock when rotatory, thereby influence the stationarity of car operation, and then influence the comfort level of taking of elevator, lead to taking experience variation.

Based on this, the embodiment of the application provides a traction machine base, and it can effectively improve the concentricity of stator 12, pivot 13 and braked wheel 20 to reduce or avoid the rocking when braked wheel 20 rotates, provide the guarantee for the steady movement of car. The hoist base of the present application will be described in detail below with reference to specific embodiments.

Referring to fig. 1 to 3 in combination with fig. 8 and 9, fig. 1 is a schematic structural diagram of a traction machine base according to an embodiment of the present invention, fig. 2 is a front view of the traction machine base shown in fig. 1, fig. 3 is a sectional view taken along a-a line in fig. 2, fig. 8 is a schematic structural diagram of a traction machine using the traction machine base shown in fig. 1, and fig. 9 is a sectional view of the traction machine shown in fig. 8.

Specifically, as shown in fig. 1 to 3, the traction machine base of the present embodiment includes a base 11, a stator 12, and a rotating shaft 13, wherein the base 11 is configured to be fixedly mounted on a mounting surface at the top of an elevator shaft, the base 11 is provided with a mounting cavity 111, the stator 12 is integrally formed with the base 11 and disposed in the mounting cavity 111, the rotating shaft 13 is integrally formed with the stator 12 and disposed concentrically with the stator 12, the rotating shaft 13 has a connecting end 131 vertically protruding from a surface of the stator 12, and the connecting end 131 is configured to be sleeved with a brake wheel 20 engaged with the stator 12. In this embodiment, a rotation space 121 is formed between the periphery of the stator 12 and the side wall of the mounting cavity 111 at an interval, a coil winding 50 is wound around the periphery of the stator 12, the coil winding 50 is located in the rotation space 121, a magnetic steel 60 is wound around the periphery of the brake wheel 20, when the brake wheel 20 is sleeved on the connecting end 131 of the rotating shaft 13, the periphery of the brake wheel 20 extends into the rotation space 121, and the magnetic steel 60 wound thereon is opposite to the coil winding 50 and is arranged at an interval with the coil winding 50, as shown in fig. 8 and 9, so that when the coil winding 50 is energized, the brake wheel 20 can be driven to rotate in cooperation with the magnetic steel 60.

According to the tractor base provided by the embodiment, the stator 12 and the rotating shaft 13 are integrally formed on the base 11, the rotating shaft 13, the stator 12 and the base 11 do not need to be assembled, assembly errors and assembly gaps do not exist among the rotating shaft 13, the stator 12 and the stator 12, the base 10 is compact in structure and high in stability, the rotating shaft 13 and the stator 12 are integrally and concentrically arranged, and the concentricity of the rotating shaft 13 and the stator 12 is high. Thus, because there are no assembly error and assembly gap between the rotating shaft 13 and the stator 12 and the base 11, and the concentric precision of the three is high, the brake wheel 20 will not shake relative to the base 11 when rotating, and the stability of the brake wheel 20 when rotating is higher. Thus, by using the traction machine base 10 integrally formed with the stator 12 and the rotating shaft 13 on the base 11 according to the embodiment, shaking caused by the presence of an assembly gap when the brake wheel 20 rotates can be avoided, shaking caused by the non-concentricity of the rotating shaft 13, the stator 12 and the brake wheel 20 can also be avoided, the rotational stability of the brake wheel 20 is improved, the rotational stability of the traction wheel 30 is improved, and therefore, the stable movement of the car is ensured, and the comfort level of taking the elevator is improved.

In some embodiments, the base 11, the stator 12 and the shaft 13 are integrally molded. It is understood that in other embodiments, the base 11, the stator 12 and the shaft 13 may be formed by other integral molding methods, and are not limited to integral molding.

In another embodiment of the present invention, please refer to fig. 1 to 4, wherein fig. 4 is a rear view of the traction machine base shown in fig. 1. Specifically, the base 11 has a front side 112 and a back side 113 disposed opposite to each other, and when the base 11 is installed on the installation surface, the back side 113 is back to the wall of the elevator shaft, and the front side 112 is back to the wall of the elevator shaft. The mounting cavity 111 is concavely arranged on the front side surface 112 of the base 11, as shown in fig. 1, the middle portion of the front side surface 112 of the base 11 is concaved toward the back side surface 113 to form the mounting cavity 111, the mounting cavity 111 is in a circular shape adapted to the shape of the brake wheel 20, the stator 12 is integrally formed in the middle portion of the mounting cavity 111 and concentrically arranged with the circular mounting cavity 111, the rotating shaft 13 is vertically formed in the center of the stator 12, and the size of the mounting cavity 111 is larger than the outer diameter of the brake wheel 20, so when the brake wheel 20 is sleeved on the connecting end 131 of the rotating shaft 13, the periphery of the brake wheel 20 is ensured not to collide with the cavity wall of the mounting cavity 111, and the base 11 is prevented from interfering the rotation of the brake wheel 20.

In the present embodiment, as shown in fig. 1 and 3, the stator 12 is a cylinder with an opening at one end, and has an opening end 122 and a sealing end 123 which are arranged oppositely along the axial direction, wherein the opening end 122 of the stator 12 is located on the back side 113 of the base 11, and the sealing end 123 of the stator 12 is located on the front side 112 of the base 11. Specifically, in the present embodiment, the middle portion of the rear side of the base 11 is recessed toward the front side 112 to form the cylinder, i.e., the stator 12 is integrally formed on the base 11. The outer side wall of the cylinder of the stator 12 is spaced apart from the side wall of the mounting cavity 111 and forms a rotation space 121 that accommodates the coil windings 50 and the periphery of the brake drum 20. The rotating shaft 13 is concentrically arranged at the sealing end 123 of the stator 12, the connecting end 131 extends out from the front side surface 112, the brake wheel 20 is sleeved on the front side surface 112 of the base 11, an operator can disassemble and assemble the brake wheel 20 from the front side surface 112 of the base 11, the disassembly and assembly of the brake wheel 20 are convenient, and the overhaul and maintenance of the brake wheel 20, the stator 12, the rotating shaft 13, the base 11 and the like are convenient.

In another embodiment of the present invention, as shown in fig. 1, 2 and 4, the sealing end 123 of the stator 12 is opened with a plurality of vent holes 124 penetrating the back side surface 113, and when the hoist using the base 10 of the present embodiment is operated, the vent holes 124 penetrate the back side surface 113 of the base 10, and the air flow can flow in through the vent holes 124.

In the related technology, the heat dissipation of the traction machine mainly depends on the natural heat dissipation of the outer surfaces of the machine base 10 and the brake wheel 20 exposed in the air, and the hot air in the traction machine cannot be actively exhausted to the outside of the machine base 10 shell, so that the internal temperature of the traction machine is too high, the winding resistance is increased, the copper consumption is increased, the motor efficiency is lower, and the power resource is wasted. In the present embodiment, the sealing end 123 of the stator 12 is provided with the vent hole 124 that penetrates the back side surface 113 of the base 11, and the vent hole 124 introduces the airflow from the back side surface 113 of the base 11 into the hoisting machine, so that the heat generated by the rotation can be taken away when the airflow passes through, thereby improving the heat dissipation effect of the hoisting machine.

Further, since the brake drum 20 engaged with the stator 12 is also provided with a vent hole, and a unidirectional vortex air flow is generated in the interior of the hoist during operation, the vent hole provided in the brake drum 20 is engaged with the vent hole 124 provided in the stator 12 to guide the air flow from the back side 113 to the front side 112 of the base 11, thereby forming an air flow path in the interior of the hoist and further improving the heat radiation effect of the hoist.

In this embodiment, the vent 124 may be integrally formed when the base 10 is manufactured, and the forming process of the vent 124 is simple. The arrangement of the vent holes 124 effectively improves the heat dissipation performance of the tractor, the tractor can dissipate heat immediately after being opened, the continuity of ventilation and heat dissipation is good, and the stability and the safety of the continuous work of the tractor are ensured.

In another embodiment of the present application, as shown in fig. 2 and 4, the plurality of ventilation holes 124 have the same diameter, each ventilation hole 124 is a circular hole having the same diameter, and the plurality of ventilation holes 124 are uniformly spaced around the axis of the rotating shaft 13 and are rotationally symmetric with respect to the axis of the rotating shaft 13. Thus, the arrangement of the vent holes 124 does not affect the overall mass balance of the stator 12, and the influence of the increase of the dynamic unbalance amount when the brake wheel 20 rotates due to the uneven mass distribution of the stator 12 on the stable rotation of the brake wheel 20 is avoided.

In other embodiments, please refer to fig. 5, wherein fig. 5 is a front view of another embodiment of the traction machine base, which shows another arrangement of the ventilation holes 124 to the stator 12.

Specifically, as shown in fig. 5, in the present embodiment, the vent hole 124 may include two holes with different hole diameters, and specifically may include a large-size hole 1241 and a small-size hole 1242, wherein the large-size hole 1241 and the small-size hole 1242 are respectively plural in number, and the large-size holes 1241 are uniformly spaced around the axis of the rotating shaft 13, the small-size holes 1242 are uniformly spaced around the rotating shaft 13 of the rotating shaft 13, the large-size holes 1241 are rotationally symmetric with respect to the axis of the rotating shaft 13, and the small-size holes 1242 are rotationally symmetric with respect to the axis of the rotating shaft 13, so as to ensure the mass balance of the whole stator 12. In this way, more ventilation holes 124 are provided by appropriately using the sealing end 123 of the stator 12, thereby further improving the heat radiation effect.

It is understood that in the specific embodiment, the ventilation holes 124 may be disposed at the sealing end 123 of the stator 12 as much as possible, but the material of the stator 12 is reduced due to the disposition of the ventilation holes 124, which may result in the structural strength of the stator 12 being reduced, so that when the ventilation holes 124 are disposed, the structural strength of the stator 12 needs to be considered to meet the use requirement, and the influence on the normal use function of the stator 12 due to the structural strength reduction of the stator 12 caused by the disposition of the ventilation holes 124 is avoided. Specifically, under the requirement that satisfies stator 12 structural strength, this application does not carry out only injecing to the quantity that sets up of ventilation hole 124, during the design according to stator 12's atress and heat dissipation demand set up can.

In another embodiment of the present application, please refer to fig. 4, 6 and 7, wherein fig. 6 is a sectional view of a traction machine base provided in one embodiment, and fig. 7 is a sectional view of a traction machine base provided in another embodiment.

In this embodiment, as shown in fig. 4, the rotating shaft 13 further has a back end 132 protruding from the sealing end 123 of the stator 12 toward the back side surface 113, the back end 132 is integrally extended and formed from the connecting end 131, a plurality of reinforcing ribs 14 are connected between a side wall surface of the back end 132 and an inner side wall of the cylinder of the stator 12, and opposite ends of the reinforcing ribs 14 are respectively connected to a side wall of the back end of the rotating shaft 13 and a side wall of the cylinder of the stator 12. The arrangement of the reinforcing ribs 14 is equivalent to the arrangement of a connecting piece between the rotating shaft 13 and the stator 12, the connecting strength between the rotating shaft 13 and the stator 12 can be increased, when the brake wheel 20 rotates around the rotating shaft 13, the brake wheel 20 can act on non-axial impact force on the rotating shaft 13, the impact force can cause the rotating shaft 13 to have a deformation tendency deviating from the axis, so that the reinforcing ribs 14 are connected with the back end 132 of the rotating shaft 13 and the side wall of the stator 12, the connecting strength between the rotating shaft 13 and the stator 12 is improved, the consistency between the rotating shaft 13 and the stator 12 is higher, the capability of the rotating shaft 13 for resisting the impact force can be improved, the deformation tendency of the rotating shaft 13 deviating from the axis is effectively relieved, and better guarantee is provided for the smooth rotation of the brake wheel 20.

In the present embodiment, the plurality of ribs 14 are uniformly arranged around the axis of the rotating shaft 13 at intervals, that is, the plurality of ribs 14 are rotationally symmetric with respect to the axis of the rotating shaft 13, so as to avoid the influence of the arrangement of the ribs 14 on the balance degree of the overall mass of the stator 12 and the rotating shaft 13, and avoid the mass unbalance of the stator 12 or the rotating shaft 13 caused by the arrangement of the ribs 14.

As shown in fig. 6, in another embodiment of the present application, the reinforcing ribs 14 may be disposed on the sealing end 123 of the stator 12, that is, the reinforcing ribs 14 are integrally formed on the stator 12, and at this time, the plurality of reinforcing ribs 14 are respectively avoided from the corresponding vent holes 124, so as to prevent the reinforcing ribs 14 from blocking the vent holes 124 and affecting the heat dissipation effect of the vent holes 124. The reinforcing rib 14 is directly provided at the sealing end 123 of the stator 12, and the reinforcing rib 14 can compensate for the reduction of the structural strength of the stator 12 due to the provision of the vent hole 124, thereby improving the structural strength of the stator 12 and reducing the influence of the provision of the vent hole 124 on the stator 12.

In other embodiments, as shown in fig. 7, the reinforcing rib 14 may also be disposed at a distance from the sealing end 123 of the stator 12, that is, the reinforcing rib 14 is not in contact with the sealing end 123 of the stator 12, but is disposed in a floating manner, in which case, the reinforcing rib 14 can also function to connect the rotating shaft 13 and the stator 12. Since the reinforcing ribs 14 are provided at a distance from the sealing end 123 of the stator 12, the air flow can normally flow into the vent holes 124 through the gap, and therefore, the reinforcing ribs 14 may or may not escape from the vent holes 124.

In this embodiment, as shown in fig. 4, 8 ventilation holes 124 are uniformly spaced around the axis of the rotating shaft 13 at the sealing end 123 of the stator 12, two reinforcing ribs 14 are disposed between two adjacent ventilation holes 124, and the whole stator 12 provided with the reinforcing ribs 14 and the ventilation holes 124 is rotationally symmetric with respect to the axis of the rotating shaft 13.

In another embodiment of the present application, as shown in fig. 4, the stator 12 is formed by recessing the middle of the back side surface 113 of the base 11 toward the front side surface 112, and a plurality of through holes 114 are formed in the portion of the back side surface 113 located on the peripheral side of the opening end 122, so that the airflow can enter the inside of the base 10 through the through holes 114 to accelerate heat dissipation, and the weight of the base 10 can be reduced due to the arrangement of the through holes 114, thereby saving the manufacturing material.

In another embodiment of the present application, as shown in fig. 1 and 3, a first boss 1311 and a second boss 1312 are protruded from a sidewall surface of the connection end 131 of the rotation shaft 13 at an interval in the axial direction, wherein the first boss 1311 and the second boss 1312 are both annular bosses, and when the brake wheel 20 is sleeved on the connection end 131 of the rotation shaft 13, the first boss 1311 is used for stopping an end surface of the brake wheel 20 facing the base 11, and the second boss 1312 is used for stopping an end surface of the sleeve bearing 31 of the brake wheel 20 facing the base 11, as shown in fig. 9. Thus, when the brake wheel 20 is installed, the positioning can be performed by the two bosses, and the assembling efficiency and the assembling precision are improved.

In another embodiment of the present application, as shown in fig. 1 and 3, a receiving cavity 133 is provided in the rotating shaft 13, the receiving cavity 133 is used for receiving the encoder 40, and the receiving cavity 133 at least penetrates through the connecting end 131, so that the encoder 40 can be maintained and repaired from the front side surface 112 of the base 11. As shown in fig. 8 and 9, when maintenance is performed, only the bearing cover 311 covering the encoder 40 needs to be removed, wherein the bearing cover 311 is screwed in the connection hole 134 at the end of the rotation shaft 13 through a fastening member such as a screw and detachably connected to the rotation shaft 13, so that maintenance and replacement of the encoder 40 can be realized, and the encoder 40 is convenient and reliable to repair and maintain.

In another embodiment of the present application, as shown in fig. 1, a terminal box mounting location 16 for mounting a terminal box 70 of a traction machine is further provided on the base 11, as shown in fig. 8.

In another embodiment of the present application, as shown in fig. 1, fig. 2 and fig. 4, two supporting legs 15 are further disposed at two corners of the lower portion of the base 11, each supporting leg 15 includes two supporting plates disposed at intervals along the axial direction of the rotating shaft, a vertical rib 151 disposed perpendicular to the rotating shaft 13 is disposed on a side surface of at least one supporting plate facing the other supporting plate, and the provision of the vertical rib 151 can increase the supporting strength of the supporting plates, improve the ability of the supporting legs 15 to resist deformation, and thus improve the mounting stability of the base 11 when mounted on a mounting surface.

The utility model discloses a hauler frame that above-mentioned each embodiment provided, it is with stator 12 and pivot 13 integrated into one piece in base 11, pivot 13 need not the equipment with stator 12 and base 11, there is not assembly error and fit-up gap between the three, pivot 13 sets up with stator 12 an organic whole is concentric, pivot 13 is higher with stator 12's concentricity, can avoid when driving wheel 20 rotates, because of there being the rocking that fit-up gap leads to, also can avoid rocking because of pivot 13 and

stator

12 and 20 three decentraction of braked wheel lead to, improve the rotatory stability of braked wheel 20, improve the rotational stability of trailing wheel 30, thereby ensure the steady movement of car, promote the comfort level of taking the elevator.

Another embodiment of the present invention further provides a traction machine, as shown in fig. 8 and 9, including the traction sheave 30, the brake drum 20 and the traction machine base 10 of each of the above embodiments, the brake drum 20 is rotatably sleeved on the connecting end 131, and the traction sheave 30 is fixedly installed on the brake drum 20.

The utility model discloses tractor, it is through using the aforesaid with

stator

12 and 13 integrated into one piece of pivot in the frame 10 of base 11, there are not assembly gap and assembly error in frame 10, and pivot 13 is higher with

stator

12 and 20 three concentricity of braked wheel, and the braked wheel 20 is rotatory more steady, and probability greatly reduced that rocking appears in the removal of traction wheel 30 through the rope traction car, and the car removes more steadily. The traction machine also has other technical effects of the traction machine base provided by the above embodiments, and the description is omitted here.

Another embodiment of the present invention also provides an elevator system including the traction machine of the above embodiment.

The utility model discloses elevator system, through using foretell hauler, the car removes steadily reliably, and the passenger takes experience and can promote. The elevator system also has other technical effects of the traction machine provided by the embodiment, and the description is omitted.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A traction machine stand, comprising:

the base is provided with a mounting cavity;

the stator is arranged in the mounting cavity, the stator and the base are integrally formed, and a rotating space is formed between the periphery of the stator and the side wall of the mounting cavity at intervals;

the rotating shaft is integrally formed with the stator and concentrically arranged with the stator, the rotating shaft is provided with a connecting end protruding from the surface of the stator, and the connecting end is used for sleeving a brake wheel.

2. The traction machine base according to claim 1, wherein the base has a front side and a back side opposite to each other, the mounting cavity is recessed in the front side, the stator is a cylinder with an open end, the open end of the stator faces the back side, the outer side wall of the cylinder of the stator and the side wall of the mounting cavity form the rotation space at an interval, the rotating shaft is concentrically disposed at the sealed end of the stator, and the connecting end extends from the front side.

3. The hoisting machine base according to claim 2, wherein the sealing end of the stator is provided with a plurality of ventilation holes penetrating the back surface.

4. The machine stand according to claim 3, wherein the plurality of the ventilation holes have equal diameters, and the plurality of the ventilation holes are rotationally symmetric with respect to the axis of the rotating shaft.

5. The machine base of claim 3, wherein the vent holes comprise two holes with different diameters, the number of the two holes is plural, and one hole with the same diameter is rotationally symmetric with respect to the axis of the rotating shaft, and the other hole with the same diameter is rotationally symmetric with respect to the axis of the rotating shaft.

6. The traction machine base according to claim 3, wherein the rotation shaft further has a back end protruding from the sealed end of the stator toward the back side surface, and a plurality of reinforcing ribs are connected between the side wall surface of the back end and the inner side wall of the cylinder of the stator.

7. The machine stand of claim 6, wherein the plurality of reinforcing ribs are rotationally symmetric with respect to an axis of the rotating shaft.

8. The machine base of claim 7, wherein the reinforcing ribs are provided on the sealed end of the stator and the reinforcing ribs avoid the vent holes;

9. The traction machine stand according to claim 2, wherein the stator is formed by recessing a middle portion of the back side surface toward the front side surface, and a portion of the back side surface on a circumference side of an open end of the stator is provided with a plurality of through holes.

10. The traction machine base according to claim 2, wherein a first boss and a second boss are protruded from a side wall surface of the connection end at an interval in an axial direction, the first boss is used for stopping the brake wheel, and the second boss is used for stopping a sleeve bearing of the brake wheel.

11. The machine base of claim 1, wherein a receiving cavity is provided in the rotating shaft, the receiving cavity extending through at least the connecting end, the receiving cavity configured to receive an encoder.

12. The traction machine base according to any one of claims 1 to 11, wherein the base, the stator, and the rotating shaft are integrally cast.

13. A traction machine, which is characterized by comprising a traction sheave, a brake wheel and the traction machine base as claimed in any one of claims 1 to 12, wherein the brake wheel is rotatably sleeved on the connecting end, and the traction sheave is mounted on the brake wheel.

14. An elevator system characterized by comprising the traction machine according to claim 13.