RAIL-MOUNTED INTEGRATED ELEVATOR DRIVE SYSTEM

Description

TECHNICAL FIELD

[0001] The invention relates to internal rotor belt drive elevator traction systems used for moving cabins and counterweights in human or freight elevators.STATE OF THE ART

[0002] One of the most important parameters affecting energy efficiency in elevator systems is the traction motor. If gearless permanent magnet synchronous motors with the same capacity are used instead of geared induction motors, energy savings can be made at different rates according to the motor dimensions. Geared, 3-phase induction motors are generally used as motors in elevator systems. An additional machine room is needed because these motors are structurally large and heavy. The machine room increases the cost of the system and the building. In addition, the efficiency of geared induction motors is low. They are usually in the IE2 and IE3 efficiency classes and also increase the energy costs of buildings. Due to these problems, gearless permanent magnet synchronous motors that do not need an machine room and work in the hoistway have started to become widespread in elevator systems.

[0003] Gearless elevator motors are generally used with rope pulley mechanisms. The pulley diameters are large to prevent fracture of the ropes, and therefore the motors must have low speed and high torque. Torque fluctuations at high torques negatively affect passenger comfort. In addition, motor efficiency decreases at low speeds. Gearless elevator motors produced with cast bodies are quite heavy and have high logistical costs. In order to reduce motor weights, it is necessary to reduce pulley diameters and increase motor-rated speeds. In order to prevent fracture defaults in the ropes for small pulley diameters, belts made of steel core and rubber material have been released to the market. Thus, belt drive elevator motors have been produced that can move the same loads in smaller dimensions than rope elevator motors. With belt drive elevator systems, the diameters of the motor traction pulleys have decreased, more comfortable travels have been achieved and energy efficiency has increased even more.

[0004] In the field of gearless belt drive elevator motors, different studies were carried out on the production of the motor body and the assembly of the motor. The first patent related to belt drive elevator systems is US1011423. In this patent, the cabin and counterweight are moved by the belt system connected to the electric motor and pulleys. Later, a similar structure was used in many elevator traction systems. High-capacity belts for elevator traction systems claimed in US2003 / 0121729A1, US2011 / 0000746A1 and TR2010 / 04005 (EP1724226B1) have V-shaped longitudinal grooves wider than rope thickness and are formed by mixing with epoxy, polyester, phenolic and vinyl ester resins. Another major advantage of belt-driven systems is that they are lighter than rope weights. In this way, problems experienced due to rope weight are prevented, especially in high-rise buildings, and belt drive systems can be used even in buildings at a height of 1000 m. When the amount of energy consumed in rope systems and belt systems in an 800-meter building was compared, it was seen that 40% less energy was consumed in belt systems.

[0005] EP 0905081 discloses a method and system for positioning the elevator drive unit directly within the elevator shaft, thereby eliminating the traditional need for a separate machine room typically located above or adjacent to the shaft.

[0006] WO2009060037A1 relates to traction-type elevator systems and specifically proposes an elevator drive unit that can be installed laterally within the elevator shaft, that is, on the side of the elevator car. This approach is part of a broader effort to develop machine-room-less elevator designs, which eliminate the need for a separate machine room and thereby reduce construction costs and spatial requirements.

[0007] EP1741661B1 and EP2871147A1 include innovations in motor housing and assembly. In EP1741661B1, the motor body is produced by the casting method and a large part of the motor weight is transferred to the rail by mounting from the body to the rail. The motor body in said patent acts as the motor chassis. In the proposed invention, it is planned to use the motor body as the motor chassis. The superiority of the system of the proposed invention over said patent is that there will be no need for casting during the production of the motor body and the originality of the connection apparatus and plates. In EP2871147A1, it is produced in two parts with a modular motor body. In this patent, a motor chassis is needed, and the body is produced by the casting method.

[0008] As a result of the patent research, the states of the art have been revealed. To summarize briefly; It has been observed that most of the elevator motors need a motor chassis for their installation in the shaft and the casting method is used in the motor production processes. Although belt drive motors have been used in the sector with the strength belts developed since 2013, it has been determined that rope motors are still used much more. A patent (EP1741661B1) in which the motor body is used as the motor chassis has been determined, but it has been determined in this invention that the casting method is needed in the production processes of the product and the connection method is different from the proposed patent.

[0009] As a result, the proposed Rail-Mounted Integrated Elevator Traction System provides a design that does not require the casting method in the production process and where the motor body can also be used as the motor chassis. The connection apparatus and plates in this design are the original aspects of the system.BRIEF DESCRIPTION AND OBJECT OF THE INVENTION

[0010] The present invention relates to a rail-mounted integrated elevator traction system that meets the abovementioned needs, fulfills all the objects in the following description and eliminates all disadvantages and provides some additional advantages.

[0011] The present invention is an electric motor consisting of a stator, rotor, magnets, and windings for use in human and freight elevators; body elements where the electric motor is fixed; motor shaft where rotational movement occurs and a traction system consisting of at least one brake coupled to the shaft. The belt pulleys attached to the shaft in the middle of the electric motor traction system are positioned so that there are at least two on the right and left sides of the electric motor. The body elements are the main connection apparatus, winding area plates, and motor connection plates and integrate the shaft, bearings, studs, belt gap holder parts and the electric motor. The integrated traction system includes the main connection apparatus mounted on the motor plates and wall fastening apparatus, which allows direct connection to the elevator carrier rail and prevents the entire system load from acting to the building.

[0012] The invention covers the use of the integrated motor and chassis system to be used in machine roomless human and freight elevators in a structure that provides installation on the rail and wall. The proposed design can be used in rope and belt drive elevator traction systems. It is a system that eliminates the casting process and can be easily produced with minimum machining. The assembly equipment of the traction system consists of cutting and joining the sheet plates by laser cutting method. The motor body also provides support to the motor chassis. It is envisaged to produce an elevator machine with an integrated structure together with a belt and pulley. The body of the motor covers a system that will be directly connected to the elevator carrier rail perpendicularly and the entire system load will not act to the building. This system, which has an integrated structure, is expected to be at least 30-40% lighter with the machine chassis compared to the permanent magnet synchronous motors (PMSM) of other domestic rope elevators. Thus, motor shaft assembly and material costs are reduced, and ease of assembly is provided.

[0013] The energy efficiency class in electric motors is classified from IE1 to IE5. At least IE3 motor efficiency is generally a mandatory standard, and these standards vary according to the power and number of poles of the motors. The elevator machine is an integrated structure in which the belt mechanism is included with the motor. In conventional rope hoists, the pulley is at least 40 times the rope diameter and is mandatory for safety. In this case, the large diameter of the rope pulley requires low speed and high torque. For example, the pulley diameter of an elevator motor with a diameter of 6 mm and a power of 4.5 kW is 240 mm. In this case, it operates with a speed of about 160 rpm and the torque it produces is 270 Nm. When we convert this motor into a belt-pulley structure, the pulley diameter decreases to 90-100 mm due to the flat and distributed rope structure of the belt. In this case, for the cabin to reach a speed of 1 m / s, the motor speed increases to approximately 400 rpm and the torque value is 108 Nm. As the speed increases and the torque decreases, the torque fluctuation decreases, thus increasing passenger comfort. In addition, since the amount of conductor used in the motor decreases to increase the speed in the motor design, copper losses decrease and the efficiency of the motor increases.

[0014] In the proposed embodiment of the invention, the rigidity of the body is provided by using studs and belt gap holder parts.

[0015] In an alternative embodiment of the invention, the rigidity of the body is provided with rectangular bars.

[0016] In the proposed embodiment of the invention, the stator and rotor are located between the winding area plates and the motor connection plates. The winding area plates are selected to be thicker than the thickness of the winding ends to prevent contact with the stator winding ends.

[0017] In an alternative embodiment of the invention, the thickness of the motor connection plates is increased instead of the stator area plates and the contact of the winding ends is prevented in this way.

[0018] In the proposed embodiment of the invention, the integrated traction system and the body are in a rectangular form, and the extension of the motor connection plate is in the direction where the rail connection will be made.

[0019] In an alternative embodiment of the invention, the integrated traction system and the shape of the body are circular or polygonal and become monolithic with the brake cover plates, bearings, and shaft.

[0020] In the proposed embodiment of the invention, the belt protection plates designed to allow the flow of the belts are located in the intervals where the pulleys are located.

[0021] In the proposed embodiment of the invention, the brake is attached to the right or left cover plate.

[0022] The brake is located on both the right and left cover plates in an alternative embodiment of the invention.

[0023] In the proposed embodiment of the invention, the belt pulleys are inserted into the shaft on the right and left sides of the electric motor and positioned to be one and the traction process is provided by the pulleys.

[0024] In an alternative embodiment of the invention, the belt pulleys are positioned on the shaft so that there are two or three on the right and left sides of the electric motor.

[0025] In an alternative embodiment of the invention, the traction process with the belts is provided directly through the motor shaft.

[0026] In the proposed embodiment of the invention, the electric motor is a permanent magnet synchronous motor.

[0027] In alternative embodiments of the invention, an induction motor or field-winding synchronous motor is used as the electric motor.

[0028] The main objective of the invention is to provide an integrated elevator traction system that does not need a casting method in the production processes and that the motor body will also serve as the motor chassis, that the motor body will be directly connected to the elevator carrier rail and that the entire load of the traction system will not be act to the building.

[0029] Another objective of the invention is to eliminate costly and complex machine chassis constructions and other balancing elements by mounting the integrated elevator traction system on the rail in the hoistway.

[0030] Another objective of the invention is to provide a lower volume and lower weight, more efficient and more comfortable elevator traction system compared to rope systems with the same power.

[0031] Another objective of the invention is to eliminate uncomfortable travels caused by the balance center in roped gearless elevator motors by placing the integrated elevator traction system in the balance center in the hoistway.

[0032] Another objective of the invention is to transmit the elevator loads accumulated on the motor to the building and the floor in a smooth and balanced manner.

[0033] Another objective of the invention is to prevent abrasions, vibrations and noises caused by the friction of the ropes.

[0034] Another objective of the invention is to provide a compact elevator drive motor that does not need a cast body in the production processes and is lighter and less fragile.

[0035] Another objective of the invention is to produce the body components by laser cutting method and to make minimal machining and thus to provide a highly efficient modular design with easy production and assembly processes.

[0036] Another objective of the invention is to provide a more economical elevator drive motor that provides ease of assembly by reducing motor shaft assembly, material, and chassis costs.

[0037] A traction motor for elevators of the present invention for realizing the above objectives, comprising a stator and a rotor, a shaft that can rotate with respect to the relative movement of the stator and the rotor and that includes traction zones at the ends to intercept the stator and the rotor, motor connection plates with an opening through which the shaft can pass, a main connection plate connected to the outer surface of said stator and comprising at least one rail connection hole to enable connection with a rail on the surface.

[0038] In order to realize the above objectives, the present invention is an elevator installation, comprising a traction motor according to claim 1, a rail with connection holes against the rail connection holes provided on said main connection plate, a car connected to the rail in a way that it can move in the rail extension direction, said traction zone to move said car and a transfer element associated with a counterweight.

[0039] It is the production method of the traction motor to realize the above objectives, providing a stator and a rotor and a shaft with traction zones at the ends to be concentric with said stator and rotor, between the stator and the rotor, obtaining the motor connection plates with an opening to cover the openings in the front and rear parts of the stator and an opening in the center to be output by the cutting or processing method and connecting the stator to said openings, it is obtained by the cutting or processing method of a main connection plate with holes that will enable the stator to be connected at least to the rail, and it includes the steps of connecting the stator to the outer surface.BRIEF DESCRIPTION OF THE FIGURES

[0040] Figure 1 shows the front isometric view of the proposed embodiment of the elevator traction system of the invention and the connection parts and shaft elements. Figure 1a shows an exploded view of the proposed embodiment of the elevator traction system of the invention, and the connection parts and shaft elements. In this picture; Figure 2 shows the technical drawing of the proposed embodiment of the elevator traction system of the invention. Figure 2a shows an isometric view of an alternative embodiment of the elevator traction system of the invention with double-brakes. Figure 2b shows the isometric-cross section view of Figure 2a. Figure 3 shows an isometric technical drawing of the main connection apparatus. Figure 4 shows the isometric technical drawing of the proposed embodiment of the elevator traction system of the invention from the rear side. DESCRIPTION OF REFERENCES IN THE FIGURES

[0041] 1. Stator 1.1. Stator connection channel 2. Rotor 3. Magnet 4. Shaft 5. Main Connection Plate 5a. Primary part 5b. Secondary part 5.1. Rail connection hole 5.2. Rear connection hole 5.3. Stud channel 5.4. Connection slots 6. Winding Field Plate 7. Motor Connection Plate 7.1. Lock teeth 8. Pulley 9. Separator shaft 10. Brake Cover Plate 11. Brake Disc Pressure Plate 12. Brake 13. Brake bearing 14. Shaft bearing 15. Motor Stud 16. Rail 17. Rubber Bumper 18. Rail Connection Screw 19. Secondary Rail 20. Belt 21. Transfer Connection Element 22. Transfer Connection Plate 23. Side Rail Lower Connection Element 24. Side Rail Upper Connection Element 25. Traction System Rear Connection Element 26. Rail Connection Element 27. Cabin Frame DETAILED DESCRIPTION OF THE INVENTION

[0042] In this detailed description, the subject matter of the invention is described solely for the purpose of a better understanding of the subject matter and without any limiting effect.

[0043] The subject matter of the invention relates to internal rotor belt elevator traction systems used to move cabin and counterweight in human or freight elevators.

[0044] Referring to Figures 1 and 1a, the traction system is based on a traction motor arranged as an electric motor. In its simplest form, the electric motor converts electrical energy into mechanical energy by the rotational movement caused by the magnetic interaction between the magnet (3) and the windings on the rotor (2) and the stator (1). The output of the electric motor is provided as a shaft (4) connected to a rotating element.

[0045] The magnets (3) are connected to a cylindrical rotor (2) and said rotor (2) is placed in the interior of the stator (1) with a circular / cylindrical opening larger than its diameter in the preferred embodiment of the invention. There are teeth extending radially towards the center in the inner diameter of the stator (1) and there are windings on these teeth. Here, as a result of the interaction between the magnet (3) and the windings, the rotor (2) rotates and the output is taken from the shaft (4), which is concentric and fixedly connected to the rotor (3). A detailed explanation shall be made by considering a traction motor of type two. In the system of the invention, various electric motors with the rotor (2) on the outside and the stator (1) on the inside or with the magnet (3) and windings positioned differently can also be used as traction motors for the invention. However, the presence of the stationary stator (1) on the outside and its function as a body is of great importance in terms of eliminating the need for cast bodies.

[0046] Preferably, the shaft (4) is provided with longer lengths of the rotor (2) and the stator (1). In this way, the shaft (4) extends out from the rear and front of the rotor (2)-stator (1) pair. More precisely, these elements are dimensioned and positioned such that the rotor (2) and the stator (1) are between the two ends of the shaft (4). Accordingly, when the traction motor is connected to the rail (16), it becomes more stable against the traction force from the belt (20) and similar transfer elements.

[0047] The stator (1) is connected to a winding field plate (6). The winding field plate (6) is used to protect the winding end overflows. In order to ensure the aforementioned connection, there are longitudinal slots in the outer diameter of the stator and slots in the outer diameter of the winding plate against these slots. Connection is provided with connection elements passed through said slots.

[0048] The front and rear parts of the stator (1), as well as the bottom and the lower part of the cylindrical opening, are each positioned on the motor connection plate (7). There is a channel on the motor connection plate (7) through which the shaft (4) will pass. Each bearing (14) is positioned in these channels. Here, the shaft (4) also passes through the shaft bearing (14) and is bedded by said shaft bearing (14). The circumferential part of the motor connection plate (7) may also have a ring opening through which a motor stud (15) can pass.

[0049] Referring to Figures 2 and 2a, said stator (1) and the added motor connection plates (7) form a body together and the need for a cast motor body is eliminated.

[0050] Accordingly, the body formed together with the stator (1) and the added motor connection plate (7) is connected to the elevator system guide rail (16) through a main connection plate (5).

[0051] Referring to Figures 2a and 3, one end of the main connection plate (5) is connected to the outer surface of the stator (1) body and the other end is connected to the guide rail (16). The connected part of the body of the stator (1) of the main connection plate mentioned here is defined as the primary part (5a), and the part connected to the guide rail (16) is defined as the secondary part (5b).

[0052] Preferably, the secondary part (5b) may also be provided angled relative to the primary part (5a) so as to contact and support the body of the stator (1). Here, the secondary part (5b) can be provided to support the stator (1) in the vertical direction.

[0053] As can be seen more clearly in Figure 3, the main connection plate (5) comprises multiple holes to provide said connections. Rail connection holes (5.4) are formed on the previously described secondary part (5b). The secondary part (5b) is placed on the corresponding holes in the guide rail (16) so as to coincide with the rail connection hole (5.1), and the two elements are connected to each other by the rail connection screws (18) seen in Figure 1.

[0054] Preferably, rubber bumpers (17) may be disposed at the ends of the connection screws (18) extending to the rear of the rail (16). The rubber bumpers (17) act as bumpers between the traction system rear connection element (25) and the guide rail (16), which correspond to the rear of the traction system to be described later.

[0055] In addition, the secondary part (5b) may further comprise connection slots (5.4). There are at least one preferably multiple lock teeth (7.1) on an extension provided to the lower part of the motor connection plate (7) in response to the connection slots. By entering these lock teeth (7.1) into the connection slots (5.4), the two elements strengthen their connection to each other.

[0056] There are rear connection holes (5.2) on the primary part (5a). These holes enable the connection of the main connection plate (5) and the traction system rear connection element (25).

[0057] In a preferred embodiment of the invention, the primary part (5) and the secondary part (5b) are arranged to extend in a perpendicular direction to each other. The primary part (5) is shaped to remain on the front surface of the stator (1) and the secondary part (5b) is shaped to remain on the side surface of the stator (1). This positioning can also be provided as follows; as mentioned earlier, the longitudinal stator connection channel (1.1) can be located on the side surface of the stator (1).

[0058] In response to these stator connection channels (1.1), a longitudinal stud channel (5.3) is formed on the side surface, i.e., narrow surface, of the primary part (5a), as in Figures 2b and 3. Here, a longitudinal motor stud (15) is passed through both the stud channel (5.3) and the stator connection channel (1.1), and the main connection part (5) and the stator (1) are fixed to each other. Preferably, bolts are placed at the ends of the motor stud (15) as in Fig. 2a.

[0059] In this embodiment, the secondary part (5b) also fits in the lower part of the stator (1) channels. This is made possible by the fact that the primary part (5a) and the secondary part (5b) extend in different directions. The main connection plate (5) is preferably provided in the form of "L".

[0060] Here, a single main connection part (5) can be used, as well as two main connection parts (5), which are preferably positioned opposite each other, can be connected to the traction motor, and both main connection parts (5) are also connected to the guide rail (16).

[0061] Here, preferably, both main connection parts (5) include a stud hole (5.3) and these stud holes (5.3) are positioned in line with the stator connection channel (1.1). The two main studs (5) and the stud hole (5.3) of the motor stud (15) are passed through.

[0062] Referring to Figure 1a, at least one traction zone is provided at both ends of the shaft (4). Said traction zones are the shaft (4) parts that enable the belt and rope to be driven from the traction motor. Preferably, the traction region is provided with a pulley (8), in particular a belt pulley (8), arranged at the ends of the shaft (4).

[0063] Referring to Figures 1a, 2 and 2a, the traction motors have at least one brake (12) for safety reasons. The brake (12) preferably provides a braking function to the shaft (4) via a contact plate perpendicular to the axis of rotation of the shaft. A brake (12) can be positioned to provide braking by pressing on both ends of the shaft (4).

[0064] The pressure required for braking is provided by a brake disc pressure plate (11), preferably the brake disc pressure plate (11) is provided in a movable manner in the axial direction with respect to the axis of rotation of the shaft (4). The brake disc pressure plate (11) is also associated with a brake cover plate (10). There is a brake bearing (13) to bear the shaft (4) in the hub of the brake cover plate (10). The brake (12) can be selected from mechanical or electromechanical type brakes (12).

[0065] Referring to Figures 1a and 2a; As previously mentioned, the shaft (4) extends out in the axial direction according to the axis of rotation outside the stator (1) and the rotor (2). Traction zones are provided in the outside parts. When the brake (12) is connected to the body of the stator (1), it must allow the passage of the belt (20) or the rope in said traction areas. For this, separator shafts (9) provided longitudinally between the body of the stator (1) and the brake are used.

[0066] The separator shafts (9) are provided in the form of a hollow tube and are positioned to be aligned with the stud hole (5.3). If two brakes (12) are used, a separator shaft is positioned at both ends of the stator channel (1.1). Here, a motor stud (15) is passed through each separator shaft (9) and the stud hole (5.3).

[0067] Referring to Figures 1a and 4, the traction motor is used in an elevator installation.

[0068] The elevator installation comprises at least a transfer connection plate (22), transfer elements connected to the transfer connection plate (22) with transfer connection elements (21), preferably a belt (20) and rope. The transfer connection plate (22) is placed on a secondary rail (19). The transfer element is also associated with the traction regions of the traction motor as well as the transfer connection plate (22). In addition, the transfer element is also associated with a counterweight (not shown in the figures).

[0069] A cabin frame (27) is positioned between the secondary rail (19) and the rail (16). The cabin frame (27) is the structure where the car is placed and provides movement on the secondary rail (19) and the rail (16).

[0070] The traction system rear connection element (25), which is arranged as a longitudinal plate in the rear part of the rail (16), is positioned. Here, the drive system rear connection element (25) is connected to the secondary rails (19) by the side rail lower connection elements (24) from both ends. As previously mentioned, the main connection plate (5) is in particular in contact with the primary part (5a). Between said secondary rails (19), there is a rail connection element (26) connected to said secondary rails (19) by means of side rail upper connection elements (24) from their ends.

[0071] The production method of the integrated traction motor subject to the invention is as follows; A rotor (2) and stator (1) and shaft (4) are provided and said rotor (2) and stator (1), and shaft (4) are positioned concentric. It is performed by cutting or processing the motor connection plates (7) with an opening in the size and center to cover the openings in the front and rear parts of the stator (1). Here, the cutting or machining method can be laser cutting or machining. Thereafter, a main connection plate (5) with holes to enable the stator (1) to be connected at least to the rail (16) is cut or machined. Here, the cutting or machining method can be laser cutting or machining. In addition, the main connection plate (5) may also include holes to provide fixation with the previously described rear connection element (25). All the aforementioned holes can be obtained by laser cutting or punching systems.

[0072] Said holes are aligned by being placed in the holes on the rail (16) and are integrated with the screw-like connection elements by means of the rail (16) and the traction motor main connection plate (5).

[0073] In one embodiment, a stud channel (5.3) is formed with longitudinal stator channels (1.1) on the outer surface of the stator and with an inlet and outlet on the narrow surface of the main connection surface. After these channels are aligned, a motor stud is passed through the channels and the traction motor, and the main connection plate (5) are fixed together.

Claims

1. A traction motor for elevators having a stator (1) and a rotor (2), a shaft (4) which is concentrically positioned with said stator (1) and rotor (2) and rotatable according to the relative motion of the stator (1) and rotor (2) with respect to each other, and which includes traction zones at its ends so as to interpose the stator (1) and rotor (2), motor connection plates (7) shaped and dimensioned to cover the openings at both ends of said stator (1), having an opening through which the shaft (4) can pass, characterized by a main connection plate (5) connected to the outer surface of said stator (1) and comprising on its surface at least one rail connection hole (5.1) for connection with a rail (16).

2. A traction motor according to Claim 1, characterized in that it comprises at least one stator channel (1.1) longitudinally on the outer surface of said stator (1) and a stud channel (5.3) provided on the thickness-defining surface of said main connection plate (5).

3. A traction motor according to Claim 2, characterized in that it comprises the motor stud (15) passing through stator channel (1.1) and the stud channel (5.3).

4. A traction motor according to Claim 1, characterized in that said main connection plate (5) comprises a primary part (5a) and a secondary part (5b) that do not extend parallel to each other.

5. A traction motor according to Claim 4, characterized in that said primary part (5a) is shaped to contact the front or rear surface of the stator.

6. A traction motor according to Claim 4 or 5, characterized in that said secondary part (5b) is shaped to contact the lower surface of the stator (1).

7. A traction motor according to Claim 1, characterized in that it comprises at least one brake (12).

8. A traction motor according to Claim 1, characterized in that it comprises a plurality of brakes (12).

9. A traction motor according to Claim 1, characterized in that said brake (12) comprises a brake disc pressure plate (10) which is axially movable with respect to the direction of rotation of the shaft (4) and provides braking by contacting the shaft (4).

10. A traction motor according to any one of Claims 7 to 9, characterized in that it comprises at least one separator shaft (9) for connecting said stator (1) and the brakes (12) and for closing the traction zone.

11. A traction motor according to Claim 1, characterized in that said traction region is a pulley (8).

12. An elevator installation, characterized in that it comprises the following; a traction motor according to Claim 1, a rail (16) with connection holes corresponding to the rail connection holes (5.1) provided on the main connection plate (5), a cabin connected to the rail (16) in such a way that the rail (16) can move in the direction of extension, a transfer element associated with said traction zone and a counterweight for moving said cabin.

13. An elevator traction motor production method comprises steps of a stator (1), and a rotor (2), and a shaft (4) concentric with the stator (1) and the rotor (2), including traction zones at its ends so as to interpose the stator (1) and the rotor (2), are provided, motor connection plates (7), which are of a size to cover the openings in the front and rear of the stator (1) and have an opening in the center through which the shaft (4) can exit, are obtained by a cutting method and they are connected to said openings, characterized by a main connecting plate (5) of the stator (1) having at least holes for connection to the rail (16) obtained by cutting, and it is connected to the outer surface of the stator (1)14. A method according to Claim 13, characterized in that said cutting method for the motor connection plates (7) is laser cutting or machining.

15. A method according to Claim 13, characterized in that said cutting method for the main connection plate (5) is laser cutting or machining.