traction machine

Abstract

The application discloses a traction machine and belongs to the technical field of elevators, wherein the traction machine comprises a supporting main body, a bearing and a traction wheel shaft; the supporting main body comprises a first supporting seat, a second supporting seat, a first supporting beam, a second supporting beam and a third supporting beam; the two ends of the traction wheel shaft are respectively installed on the first supporting seat and the second supporting seat, and the traction wheel shaft is rotationally connected with the first supporting seat and the second supporting seat through the bearing; the two ends of the first supporting beam, the second supporting beam and the third supporting beam are respectively fixed with the first supporting seat and the second supporting seat; the upper end of the third supporting beam is concave downward to form an oil containing groove; the outer wall of the traction wheel shaft is provided with an oil separation groove which is arranged in extension along the circumference of the traction wheel shaft, is arranged close to the bearing and is arranged above the oil containing groove. The oil separation groove avoids the oil flowing into the brake disc and the traction rope, the oil containing groove collects the oil leaked from the bearing, the deposited oil is not easy to volatilize in the oil containing groove, and the maintenance personnel can regularly maintain the traction machine.

Description

Technical Field

[0001] This invention relates to the technical field of elevators, and in particular to a traction machine. Background Technology

[0002] Permanent magnet synchronous traction machines, also known as gearless transmissions, are installed in elevator machine rooms or elevator shafts, typically on the top floor of a building or inside the shaft, and serve as the elevator's power system. Permanent magnet synchronous traction machines use a rotor structure to drive the traction sheave shaft, without a gearbox. With the rapid development of the elevator market, the application of permanent magnet synchronous traction machines is increasing, accounting for more than 70% of all elevator traction machines.

[0003] Currently, most traction machines in the industry have shortcomings in their oil leakage prevention design and structural matching. During long-term operation, the main shaft is prone to oil leakage. Leaking grease will flow onto the brake disc and traction ropes. If the brake disc's braking surface is contaminated with oil, it will lead to insufficient braking torque, posing a serious safety hazard to the traction machine's operation. During elevator operation, the traction ropes rely on the friction between themselves and the traction sheave grooves to lift the car. If grease flows onto the traction ropes on the traction sheave shaft, the oil on the rope surface will reduce friction, causing the traction ropes to slip around the traction sheave, and in severe cases, even causing the elevator to run away. Summary of the Invention

[0004] The purpose of this invention is to improve the problem of high motor production costs in existing escalators by providing a traction machine.

[0005] The technical solutions for achieving the above objectives include the following:

[0006] A traction machine includes a support body, bearings, and a traction wheel shaft. The support body includes a first support base, a second support base, and a third support beam. The two ends of the traction wheel shaft are respectively mounted on the first support base and the second support base, and the traction wheel shaft is rotatably connected to the first support base and the second support base through bearings.

[0007] The two ends of the third support beam are fixed to the first support base and the second support base respectively, and the third support beam is set at the bottom of the first support base and the second support base. The third support beam is set near the outer edge of the bearing, and the upper end of the third support beam is recessed downward to form an oil groove.

[0008] The outer wall of the traction wheel shaft has an oil separator groove, which extends circumferentially along the traction wheel shaft, is located near the bearing, and is positioned above the oil container groove.

[0009] In one embodiment, the third support beam has a first oil-receiving surface and a second oil-receiving surface, the first oil-receiving surface and the second oil-receiving surface are disposed on the upper end surface of the third support beam, the oil-receiving groove is formed between the first oil-receiving surface and the second oil-receiving surface, and the angle between the first oil-receiving surface and the second oil-receiving surface is an obtuse angle.

[0010] In one embodiment, the traction machine further includes two felts mounted at both ends of the bearing;

[0011] The number of oil separator grooves is at least two, the two oil separator grooves are arranged at both ends of the bearing, and the felt is located between the oil separator grooves and the bearing.

[0012] In one embodiment, the traction machine further includes a brake disc and a brake, and the outer wall of the traction wheel shaft has multiple rope grooves that extend circumferentially along the traction wheel shaft and are located near the middle section of the traction wheel shaft.

[0013] The brake disc is mounted on the first end of the traction wheel shaft, and the brake is mounted on the first support seat, with the brake cooperating with the brake disc;

[0014] One of the oil separator grooves is located between the brake disc and the bearing, and the other oil separator groove is located between the bearing and the rope groove.

[0015] In one embodiment, the traction machine further includes a rotor structure, a stator structure, a first housing, and a second housing. The first housing is mounted on the side wall of the first support base, and the brake is located inside the first housing. The second housing is mounted on the side wall of the second support base, and the first housing and the second housing are disposed opposite to each other.

[0016] The rotor structure is mounted on the second end of the traction wheel shaft, and the stator structure is mounted on the second support base and located inside the second housing. The rotor structure and the stator structure are rotatably coupled.

[0017] The first outer shell and the second outer shell each include a first plate and four second plates. The first ends of the four second plates are respectively installed on the four sides of the first plate, and the second ends of the four second plates are installed on the side wall of the first support or the second support. A cavity is formed between the inner sides of the first plate and the four second plates and the first support.

[0018] The first plate has multiple first ribs and second ribs, the first ribs extending along the width direction of the first plate and the second ribs extending along the length direction of the first plate;

[0019] Multiple first and second ribs are interwoven and distributed to form multiple noise reduction zones.

[0020] In one embodiment, the second plate has at least one third rib, which is arranged parallel to the first rib and staggered from the first rib.

[0021] In one embodiment, the traction machine further has a protective structure, which includes two first protective plates and a second protective plate. The two first protective plates are installed on both sides of the support body and are respectively located on both sides of the traction wheel axle. The second protective plate is installed on the upper end of the support body.

[0022] The first protective plate is bent and has at least one bending point. The traction wheel axle has a traction end, and the bending point is located near the traction end.

[0023] In one embodiment, the first protective plate includes a first baffle and a second baffle, the first baffle and the second baffle are connected at their first ends, the first baffle and the second baffle form a bending structure, a first angle is formed between the first baffle and the second baffle, and the opening direction of the first angle is away from the traction end;

[0024] The degree of the first bend is between 30 and 70 degrees.

[0025] In one embodiment, the first protective plate further includes a third baffle, the third baffle being connected to the second end of the second baffle, and a second angle being formed between the third baffle and the second baffle, the opening direction of the second angle being opposite to the opening direction of the first angle;

[0026] The degree of the second bend is greater than that of the first bend.

[0027] In one embodiment, both ends of the first baffle and the second baffle are provided with fixing plates, and the fixing plates are provided with mounting holes for fasteners to pass through, so that the ends of the first baffle and the second baffle are fixed to the first support and the second support by fasteners.

[0028] The technical solution provided by this invention has the following advantages and effects:

[0029] On one hand, the outer wall of the traction sheave shaft has an oil-separating groove, which is located near the end of the bearing. The two ends of the traction sheave shaft have brake discs and traction ropes. Therefore, when oil leakage occurs in the bearing, grease flows along the outer wall of the traction sheave shaft to the oil-separating groove, which isolates the grease, preventing it from flowing into the brake discs and traction ropes. Furthermore, the traction sheave shaft generates centrifugal force during rotation, which throws the oil out, further preventing grease from flowing into the brake discs and traction ropes.

[0030] On the other hand, the third support beam is located at the bottom of the first and second support seats, and is positioned close to the outer edge of the bearing. An oil separator is located above the oil collection tank on the third support beam. Oil from the oil separator drips into the oil collection tank, which collects the leaking oil from the bearing. The grease accumulates in the oil collection tank, and over time, the deposited grease does not easily evaporate. Maintenance personnel can periodically inspect the traction machine and promptly detect any oil leaks in the bearings. If a serious oil leak occurs, maintenance personnel can promptly repair the traction machine to prevent disruption to normal equipment operation. Attached Figure Description

[0031] The accompanying drawings illustrate specific examples of the technical solutions described in this invention and, together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this invention.

[0032] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0033] Figure 1 This is a schematic diagram of a traction machine according to an embodiment of the present invention;

[0034] Figure 2 This is a cross-sectional view of a traction machine according to an embodiment of the present invention. Figure 1 ;

[0035] Figure 3 This is a cross-sectional view of a traction machine according to an embodiment of the present invention. Figure 2 ;

[0036] Figure 4 This is one embodiment of the present invention. Figure 2 Enlarged view of point A;

[0037] Figure 5 This is one embodiment of the present invention. Figure 3 Enlarged view of point B;

[0038] Figure 6 This is a schematic diagram of the structure of the first protective plate in one embodiment of the present invention;

[0039] Figure 7 This is a side view of the first protective plate in one embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of a first outer shell or a second outer shell in one embodiment of the present invention;

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Traction machine; 1. Support body; 11. First support seat; 12. Second support seat; 13. First outer shell; 131. First plate; 132. Second plate; 133. First rib; 134. Second rib; 135. Silencing zone; 136. Third rib; 14. Second outer shell; 15. First support beam; 16. Second support beam; 17. Third support beam; 171. First oil contact surface; 172. Second oil contact surface; 21. Felt; 22. 23. Oil separator; 31. Oil container; 32. Brake disc; 33. Traction rope; 4. Bearing; 5. Traction wheel axle; 51. Rope groove; 6. Protective structure; 61. First protective plate; 611. First baffle; 612. Second baffle; 613. Third baffle; 614. Fixing plate; 615. Bending point; 616. First bend angle; 617. Second bend angle; 62. Second protective plate; 7. Brake; 8. Rotor structure; 9. Stator structure. Detailed Implementation

[0043] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0044] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0045] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0046] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0047] This invention proposes a traction machine 100, such as Figures 1 to 5As shown, the system includes a support body 1, bearings 4, and a traction sheave shaft 5. The support body 1 includes a first support base 11, a second support base 12, a first support beam 15, a second support beam 16, and a third support beam 17. The two ends of the traction sheave shaft 5 are respectively mounted on the first support base 11 and the second support base 12, and the traction sheave shaft 5 is rotatably connected to the first support base 11 and the second support base 12 through bearings 4. The two ends of the first support beam 15, the second support beam 16, and the third support beam 17 are respectively connected to the first support base 11 and the second support base 12. 12 is fixed, and the first support beam 15 and the second support beam 16 are disposed above the traction wheel shaft 5. The third support beam 17 is disposed at the bottom of the first support seat 11 and the second support seat 12, and the third support beam 17 is disposed near the outer edge of the bearing 4. The upper end of the third support beam 17 is recessed downward and forms an oil receiving groove 23. The outer wall of the traction wheel shaft 5 has an oil separating groove 22, which extends circumferentially along the traction wheel shaft 5. The oil separating groove 22 is disposed near the bearing 4 and is disposed above the oil receiving groove 23.

[0048] Specifically, the first support base 11 and the second support base 12 are used to support both ends of the traction wheel shaft 5, enabling the traction wheel shaft 5 to rotate stably on the support body 1 via the bearing 4. The tops of the first support base 11 and the second support base 12 are fixed by the first support beam 15 and the second support beam 16, and the bottoms of the first support base 11 and the second support base 12 are fixed by the third support beam 17, increasing the torsional resistance of the support body 1 and improving the overall structural stability of the support body 1. When hoisting the traction machine 100, the first support beam 15 and the second support beam 16 can also serve as load-bearing components, facilitating the lifting and transportation of the traction machine 100.

[0049] Furthermore, on the one hand, the outer wall of the traction sheave shaft 5 has an oil-separating groove 22, which is located near the end of the bearing 4. Both ends of the traction sheave shaft 5 have brake discs 31 and traction ropes 32. Therefore, when oil leakage occurs in the bearing 4, grease flows along the outer wall of the traction sheave shaft 5 to the oil-separating groove 22, which isolates the grease, preventing it from flowing into the brake discs 31 and traction ropes 32. Moreover, the traction sheave shaft 5 generates centrifugal force during rotation, which throws the oil out, further preventing grease from flowing into the brake discs 31 and traction ropes 32.

[0050] On the other hand, the third support beam 17 is located at the bottom of the first support base 11 and the second support base 12, and is positioned close to the outer edge of the bearing 4. The oil separator 22 is located above the oil collection tank 23 of the third support beam 17. Oil from the oil separator 22 drips into the oil collection tank 23, which collects the leaked oil from the bearing 4. The grease accumulates in the oil collection tank 23, and within a certain time, the deposited grease does not easily evaporate. Maintenance personnel can periodically inspect the traction machine 100 and promptly detect any oil leaks in the bearing 4. When a serious oil leak occurs in the bearing 4, maintenance personnel can promptly repair the traction machine 100 to avoid affecting the normal operation of the equipment.

[0051] Preferred, such as Figure 5 As shown, the third support beam 17 has a first oil receiving surface 171 and a second oil receiving surface 172. The first oil receiving surface 171 and the second oil receiving surface 172 are disposed on the upper end surface of the third support beam 17. An oil receiving groove 23 is formed between the first oil receiving surface 171 and the second oil receiving surface 172. The angle between the first oil receiving surface 171 and the second oil receiving surface 172 is an obtuse angle.

[0052] Specifically, the first oil-receiving surface 171 faces the first traction end of the traction sheave shaft 5, and the second oil-receiving surface 172 faces the second traction end of the traction sheave shaft 5. When the traction sheave shaft 5 rotates, it generates centrifugal force. Due to the weight of the oil and the centrifugal force at the traction end, the oil in the oil separator 22 generally splashes at the traction end of the traction sheave shaft 5. When the traction sheave shaft 5 rotates clockwise, the oil splashed from the oil separator 22 at its second traction end falls into the second oil-receiving surface 172; when the traction sheave shaft 5 rotates counterclockwise, the oil splashed from the oil separator 22 at its first traction end falls into the first oil-receiving surface 171. Since the angle between the first oil-receiving surface 171 and the second oil-receiving surface 172 is an obtuse angle, the unfolded surface of the upper end face of the third support beam 17 is maximized to increase the bearing area of ​​the oil-containing groove 23, while also meeting the support strength design requirements of the third support beam 17. Furthermore, the oil from the first oil receiving surface 171 and the second oil receiving surface 172 will also flow into the oil container 23, thereby collecting the grease splashed from the oil separator 22.

[0053] Preferably, the traction machine 100 also has two felts 21, which are installed at both ends of the bearing 4; the number of oil separators 22 is at least two, which are arranged at both ends of the bearing 4, and the felts 21 are located between the oil separators 22 and the bearing 4.

[0054] Specifically, the bearing 4 itself has an oil seal, which provides the first seal inside the bearing 4. Felt 21 is installed at both ends of the bearing 4, which provides the second seal to further prevent oil leakage from the bearing 4. Even if oil leakage occurs in the bearing 4, the grease can be isolated by the oil separator groove 22 to prevent the grease from spreading along the outer wall of the traction wheel shaft 5.

[0055] Preferably, the traction machine 100 also has a brake disc 31 and a brake 7. The outer wall of the traction sheave shaft 5 has multiple rope grooves 51, which extend circumferentially along the traction sheave shaft 5. The multiple rope grooves 51 are located near the middle section of the traction sheave shaft 5. The brake disc 31 is installed at the first end of the traction sheave shaft 5, and the brake 7 is installed on the first support seat 11. The brake 7 cooperates with the brake disc 31. One oil separator groove 22 is located between the brake disc 31 and the bearing 4, and another oil separator groove 22 is located between the bearing 4 and the rope grooves 51.

[0056] Specifically, the brake 7 works in conjunction with the brake disc 31 to achieve emergency braking of the traction sheave shaft 5. One oil separator 22 is located between the bearing 4 and the brake disc 31. The oil separator 22 prevents grease from the bearing 4 from flowing into the braking surface of the brake disc 31, thus avoiding affecting the braking torque of the brake disc 31 and preventing serious safety hazards to the traction machine 100. The traction rope 32 is wound around the rope groove 51 of the traction sheave shaft 5 and is used to pull the car. Another oil separator 22 is located between the bearing 4 and the rope groove 51. The oil separator 22 prevents grease from the bearing 4 from flowing into the rope groove 51, isolating the grease from contacting the traction rope 32, preventing the traction rope 32 from slipping on the traction sheave shaft 5, and preventing elevator slippage.

[0057] Preferably, the traction machine 100 further comprises a rotor structure 8, a stator structure 9, a first housing 13, and a second housing 14. The first housing 13 is mounted on the side wall of the first support base 11, and the brake 7 is located inside the first housing 13. The second housing 14 is mounted on the side wall of the second support base 12, and the first housing 13 and the second housing 14 are arranged opposite to each other. The rotor structure 8 is mounted on the second end of the traction wheel shaft 5, and the stator structure 9 is mounted on the second support base 12 and located inside the second housing 14. The rotor structure 8 and the stator structure 9 are rotatably engaged.

[0058] Specifically, the brake 7 and brake disc 31 are housed within the first housing 13 to prevent external environmental factors from affecting the fit between the brake 7 and brake disc 31; the rotor structure 8 and stator structure 9 are housed within the second housing 14 to prevent external environmental factors from affecting the fit between the stator structure 9 and rotor structure 8. Furthermore, the first housing 13 and the second housing 14 are arranged opposite to each other. Therefore, the brake disc 31, rope groove 51, and rotor structure 8 are sequentially distributed along the axis of the traction sheave shaft 5, making reasonable use of the traction sheave shaft 5 to support each component and improving the compactness of each component on the traction machine 100.

[0059] In some embodiments, such as Figure 8 As shown, both the first outer shell 13 and the second outer shell 14 include a first plate 131 and four second plates 132. The first ends of the four second plates 132 are respectively installed on the four sides of the first plate 131, and the second ends of the four second plates 132 are installed on the side wall of the first support base 11 or the second support base 12. A cavity is formed between the inner side of the first plate 131, the four second plates 132, and the first support base 11. The first plate 131 has multiple first ribs 133 and second ribs 134. The first ribs 133 extend along the width direction of the first plate 131, and the second ribs 134 extend along the length direction of the first plate 131. The multiple first ribs 133 and the multiple second ribs 134 are crisscrossed and form multiple sound-absorbing zones 135.

[0060] Specifically, the first outer shell 13 or the second outer shell 14 is installed on the support body 1 of the traction machine 100. When the traction machine 100 is in operation, the traction wheel shaft 5 rotates and vibrates on the support body 1. The vibration will generate low-frequency noise that is transmitted to the cavity of the first outer shell 13 or the second outer shell 14. The first plate 131 has multiple first ribs 133 and second ribs 134. The multiple first ribs 133 and multiple second ribs 134 are distributed in a crisscross pattern and form multiple noise reduction zones 135. The multiple noise reduction zones 135 are used to isolate and differentiate the sound waves in the cavity to avoid the sound waves in the cavity from superimposing. The multiple noise reduction zones 135 will prevent the sound waves from resonating in the cavity, thereby reducing the noise source noise by 5% to 15%.

[0061] Preferred, such as Figure 8As shown, the second plate 132 has at least one third rib 136, which is parallel to and staggered from the first rib 133. Specifically, the third rib 136 increases the structural strength of the second plate 132 and improves the stability of the first outer shell 13 or the second outer shell 14. The staggered arrangement of the third rib 136 and the inner wall of the second plate 132 further differentiates sound waves, further preventing the sound waves from the first outer shell 13 or the second outer shell 14 from superimposing, thus improving the noise reduction effect. Therefore, in this embodiment, the first outer shell 13 and the second outer shell 14 have a certain noise reduction function, reducing the impact of the traction machine 100 on the surrounding environment.

[0062] In some embodiments, such as Figure 3 , Figure 6 , Figure 7 As shown, the traction machine 100 also has a protective structure 6, which includes two first protective plates 61 and a second protective plate 62. The two first protective plates 61 are installed on both sides of the support body 1 and are respectively located on both sides of the traction wheel shaft 5. The second protective plate 62 is installed on the upper end of the support body 1. The first protective plate 61 is bent and has at least one bending point 615. The traction wheel shaft 5 has a traction end 33, and the bending point 615 is located near the traction end 33.

[0063] Specifically, two first protective plates 61 are disposed on both sides of the traction sheave shaft 5, and the first protective plates 61 are bent. The structure of the first protective plates 61 is strengthened after bending. The first protective plates 61 are preferably steel plates. The strengthening is mainly due to the plastic deformation of the steel plate during the bending process, which leads to the reorganization of its internal crystal structure, forming a more compact arrangement, thereby improving the strength and hardness of the steel plate. In addition, the bending process can also improve the toughness and ductility of the steel plate, making it more robust and durable when subjected to external forces, thereby improving the protective performance of the protective structure 6.

[0064] Moreover, the bending point 615 of the first protective plate 61 is close to the traction end 33. In this embodiment, the traction end 33 is the tangent point between the traction wheel axle 5 and the traction rope 32.

[0065] Since the traction rope 32 typically breaks at the traction end 33, the traction end 33 experiences the greatest destructive force. The structural strength of the first protective plate 61 after bending is greatest at its bending point 615. The bending point 615 of the first protective plate 61 can fully withstand the reaction force generated after the traction rope 32 breaks at the traction end 33. The first protective plate 61 absorbs this reaction force, preventing the broken traction rope 32 from damaging the first protective plate 61 and also preventing the broken traction rope 32 from damaging other components of the traction machine 100.

[0066] In addition, a second protective plate 62 is installed at the upper end of the support body 1 and located above the traction wheel axle 5. The second protective plate 62 has a shielding function. The two first protective plates 61 and the second protective plate 62 protect the top and sides of the traction wheel axle 5 to prevent external debris from falling onto the traction wheel axle 5 and to prevent debris from interfering with the traction of the traction rope 32.

[0067] Preferred, such as Figure 6 and Figure 7 As shown, the first protective plate 61 includes a first baffle 611 and a second baffle 612. The first baffle 611 and the second baffle 612 are connected at their first ends. The first baffle 611 and the second baffle 612 form a bent structure. A first bend angle 616 is formed between the first baffle 611 and the second baffle 612. The opening direction of the first bend angle 616 is away from the traction end 33.

[0068] Specifically, a first angle 616 is formed between the first baffle 611 and the second baffle 612. The first angle 616 is less than 90 degrees. The first baffle 611 and the second baffle 612 can be an integral structure, formed by subsequent bending processing. Moreover, the bending angle has a direct impact on strength. As the bending angle increases, the stress on the steel gradually increases. When the bending angle reaches a certain value, the steel may exceed its yield point, leading to significant plastic deformation or even failure, thereby reducing the strength of the steel. Therefore, the first angle 616 formed between the first baffle 611 and the second baffle 612 can avoid an excessively large bending angle, improving its strength while avoiding damage to the first protective plate 61.

[0069] Furthermore, the degree of the first bend angle 616 is between 30 and 70 degrees. Through experimental testing, and in order to make the first protective plate 61 have a certain unfolded area and to maximize the protective area of ​​the first protective plate 61 on the side of the traction wheel shaft 5, in this embodiment, the first bend angle 616 is set to 50 degrees, which can take into account both the protective area and the protective performance of the first protective plate 61.

[0070] Preferably, the first protective plate 61 further includes a third baffle 613, which is connected to the second end of the second baffle 612. A second angle 617 is formed between the third baffle 613 and the second baffle 612, and the opening direction of the second angle 617 is opposite to the opening direction of the first angle 616. Specifically, in order to further increase the protective area of ​​the first protective plate 61, the third baffle 613 is connected to the second baffle 612, and a Z-shaped blocking structure is formed between the first baffle 611, the second baffle 612, and the third baffle 613. The third baffle 613 can further increase the protective area of ​​the first protective plate 61; moreover, the second angle 617 formed between the third baffle 613 and the second baffle 612 is also less than 90 degrees, which further increases the structural strength of the first protective plate 61.

[0071] Furthermore, the degree of the second bend 617 is greater than that of the first bend 616. This increases the unfolded area between the third baffle 613 and the second baffle 612, further enhancing the protective area of ​​the two first protective plates 61.

[0072] Preferred, such as Figure 6 and Figure 7 As shown, both ends of the first baffle 611 and the second baffle 612 are provided with fixing plates 614. The fixing plates 614 have mounting holes for fasteners to pass through, so that both ends of the first baffle 611 and the second baffle 612 are fixed to the first support base 11 and the second support base 12 by fasteners. Specifically, the first baffle 611 and the second baffle 612 are fixed by the fixing plates 614 at both ends. The fixing plates 614 have mounting holes for the first end of the fasteners to pass through, so that the first protective plate 61 is fixed to the support body 1 by fasteners, thereby improving the structural stability of the first protective plate 61 and the support body 1.

[0073] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0074] The purpose of the above embodiments is to reproduce and derive the technical solution of the present invention by way of example, and to fully describe the technical solution, purpose and effect of the present invention. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosure of the present invention, and not to limit the scope of protection of the present invention.

[0075] The above embodiments are not an exhaustive list based on the present invention, and there may be many other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A traction machine, characterized in that, The system includes a support body, bearings, and a traction wheel axle. The support body includes a first support base, a second support base, and a third support beam. The two ends of the traction wheel axle are respectively mounted on the first support base and the second support base, and the traction wheel axle is rotatably connected to the first support base and the second support base through bearings. The two ends of the third support beam are fixed to the first support seat and the second support seat respectively, and the third support beam is disposed at the bottom of the first support seat and the second support seat. The third support beam is disposed near the outer edge of the bearing, and the upper end of the third support beam is recessed downward to form an oil groove. The outer wall of the traction wheel shaft has an oil separator groove, which extends circumferentially along the traction wheel shaft, is located near the bearing, and is positioned above the oil container groove. The third support beam has a first oil-receiving surface and a second oil-receiving surface. The first oil-receiving surface and the second oil-receiving surface are disposed on the upper end surface of the third support beam. The oil-receiving groove is formed between the first oil-receiving surface and the second oil-receiving surface. The angle between the first oil-receiving surface and the second oil-receiving surface is an obtuse angle. The traction machine also has two felts, which are mounted at both ends of the bearing; The number of oil separator grooves is at least two, the two oil separator grooves are arranged at both ends of the bearing, and the felt is located between the oil separator grooves and the bearing; The traction machine also has a brake disc and a brake. The outer wall of the traction wheel shaft has multiple rope grooves. The rope grooves extend circumferentially along the traction wheel shaft and are located near the middle section of the traction wheel shaft. The brake disc is mounted on the first end of the traction wheel shaft, and the brake is mounted on the first support seat, with the brake cooperating with the brake disc; One of the oil separator grooves is located between the brake disc and the bearing, and the other oil separator groove is located between the bearing and the rope groove.

2. The traction machine as described in claim 1, characterized in that, The traction machine also has a rotor structure, a stator structure, a first housing, and a second housing. The first housing is installed on the side wall of the first support base, and the brake is located inside the first housing. The second housing is installed on the side wall of the second support base, and the first housing and the second housing are arranged opposite to each other. The rotor structure is mounted on the second end of the traction wheel shaft, and the stator structure is mounted on the second support base and located inside the second housing. The rotor structure and the stator structure are rotatably coupled. The first outer shell and the second outer shell each include a first plate and four second plates. The first ends of the four second plates are respectively installed on the four sides of the first plate, and the second ends of the four second plates are installed on the side wall of the first support or the second support. A cavity is formed between the inner sides of the first plate and the four second plates and the first support. The first plate has multiple first ribs and second ribs, the first ribs extending along the width direction of the first plate and the second ribs extending along the length direction of the first plate; Multiple first and second ribs are interwoven and distributed to form multiple noise reduction zones.

3. The traction machine as described in claim 2, characterized in that, The second plate has at least one third rib, which is arranged parallel to the first rib and is staggered from the first rib.

4. The traction machine as described in any one of claims 1 to 3, characterized in that, The traction machine also has a protective structure, which includes two first protective plates and a second protective plate. The two first protective plates are installed on both sides of the support body and are respectively located on both sides of the traction wheel axle. The second protective plate is installed on the upper end of the support body. The first protective plate is bent and has at least one bending point. The traction wheel axle has a traction end, and the bending point is located near the traction end.

5. The traction machine as described in claim 4, characterized in that, The first protective plate includes a first baffle and a second baffle. The first baffle and the second baffle are connected at their first ends. The first baffle and the second baffle form a bent structure. A first angle is formed between the first baffle and the second baffle. The opening direction of the first angle is away from the traction end. The degree of the first bend is between 30 and 70 degrees.

6. The traction machine as described in claim 5, characterized in that, The first protective plate also includes a third baffle, which is connected to the second end of the second baffle. A second angle is formed between the third baffle and the second baffle, and the opening direction of the second angle is opposite to the opening direction of the first angle. The degree of the second bend is greater than that of the first bend.

7. The traction machine as described in claim 6, characterized in that, Both ends of the first baffle and the second baffle are provided with fixing plates. The fixing plates have mounting holes for fasteners to pass through, so that the two ends of the first baffle and the second baffle are fixed to the first support and the second support by fasteners.

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