Elevator traction friction wheel structure

Abstract

The invention relates to the field of traction friction wheels, in particular to an elevator traction friction wheel structure. Comprising a traction friction wheel body arranged on the outer surface of a mounting shaft in a sleeving mode, a guide rod is fixed to the end of a bevel gear, fan blades are fixed to the outer surface, close to the end, of the guide rod, a blowing pipe is arranged on the outer surface of the guide rod in a sleeving mode, and a transmission wheel is arranged on the side edge of the bevel gear. The traction friction wheel body rotates on the mounting shaft due to friction force, the traction friction wheel body rotates to drive the bevel gear to rotate through the first transmission gear block, the bevel gear rotates to drive the fan blades to rotate through the guide rod, the fan blades rotate to generate air flow, and the generated air flow is sprayed out through the opening of the air blowing pipe. The sprayed air flow can blow away impurities on the steel wire rope, and the situation that when the steel wire rope moves on the traction friction wheel body, friction between the steel wire rope and the traction friction wheel body is too large due to the impurities attached to the surface of the steel wire rope, and the service life of the steel wire rope is affected is avoided.

Description

Technical Field

[0001] The invention relates to the field of traction friction wheels, in particular to an elevator traction friction wheel structure. Background Art

[0002] A traction sheave is a mechanical transmission device that transmits force to another rotating object through friction.

[0003] In the prior art, elevators are common equipment in high-rise buildings, and the traction friction wheel is an important component in the elevator system. The main functions of the traction friction wheel are to transmit power, rotate the wire rope, provide lifting force and adjust the speed. It is a structure used to assist the rotation of the steel wire when the elevator slides through the steel wire.

[0004] However, after a certain period of use, the steel wire used in the elevator may have a large amount of impurities and dust attached to its surface due to its movement to different positions. When the steel wire moves to the friction wheel position, the friction between the friction wheel and the steel wire may increase, thereby reducing the service life of the steel wire. To this end, the present invention proposes an elevator traction friction wheel structure to solve the above problem. Summary of the invention

[0005] The object of the present invention is to provide an elevator traction friction wheel structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an elevator traction friction wheel structure, the elevator traction friction wheel structure comprising:

[0007] A mounting shaft, wherein a notch is provided on the surface of the mounting shaft, a transmission gear is provided on the inner wall of the notch, a connecting hole is provided on the end of the mounting shaft, a transmission rod is provided on the inner wall of the connecting hole, and a traction friction wheel body is sleeved on the outer surface of the mounting shaft;

[0008] A bevel gear, wherein a guide rod is fixed at the end of the bevel gear, a fan blade is fixed on the outer surface of the guide rod close to the end, a blowing pipe is sleeved on the outer surface of the guide rod, and a transmission wheel is arranged on the side of the bevel gear.

[0009] Preferably, a rotating shaft is fixed to the side surface of the inner wall of the incision, a transmission gear is sleeved on the outer surface of the rotating shaft, the rotating shaft and the transmission gear are movably connected, a connecting block is fixed to the outer surface of the mounting shaft away from the traction friction wheel body, an annular groove is provided on the end face of the connecting block, the notch penetrates the connecting block, and a notch is provided on the annular groove near the port.

[0010] Preferably, a positioning ring is fixed to the inner wall of the connecting hole, a positioning groove is opened on the outer surface of the transmission rod, a second transmission tooth block is fixed to the outer surface of the transmission rod, the second transmission tooth block corresponds to the transmission gear, a baffle is fixed to the end of the transmission rod away from the traction friction wheel body, and a limiting block is fixed to the outer surface of the transmission rod close to the baffle.

[0011] Preferably, a mounting hole is provided on the end face of the traction friction wheel body, the mounting hole penetrates the traction friction wheel body, the mounting hole corresponds to the mounting shaft, a first transmission gear block is fixed to one end face of the traction friction wheel body, a tooth groove is provided on the inner wall of the mounting hole, and the tooth groove corresponds to the transmission gear.

[0012] Preferably, the bevel gear is arranged on the outer surface of the mounting shaft near the baffle, the bevel gear is movably connected to the mounting shaft, the bevel gear corresponds to the connecting block, an annular block is fixed on the outer surface of the blowing pipe, the annular block corresponds to and is clamped in the annular groove, and the annular block is fixedly connected to the annular groove.

[0013] Preferably, the diameter of the notch is the same as the diameter of the outer surface of the blowing pipe, the diameter of the annular groove is the same as the diameter of the annular block, and the diameter of the annular groove is larger than the diameter of the notch.

[0014] Preferably, the transmission wheel is arranged on the outer surface of the transmission rod near the baffle, and a first transmission tooth block is fixed to one end surface. The first transmission tooth block fixed on the surface of the transmission wheel and the first transmission tooth block fixed on the surface of the traction friction wheel body are symmetrically distributed, and the bevel gear is located between the transmission wheel and the traction friction wheel body. A through hole is opened on the end surface of the transmission wheel, and the through hole penetrates the transmission wheel.

[0015] Preferably, the inner wall of the through hole is provided with limiting grooves, and the limiting grooves are provided with multiple groups. The multiple groups of limiting grooves are distributed in a circle on the inner wall of the through hole, and the limiting blocks correspond to and are clamped with the limiting grooves, and the two are movably connected.

[0016] Preferably, the length of the transmission rod is greater than the depth of the connecting hole, and the distance between the baffle surface and the end face of the mounting shaft near the end of the connecting hole is the same as the thickness of the transmission wheel.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the steel wire rope moves on the traction friction wheel body, the traction friction wheel body will rotate on the installation shaft due to the friction force. The rotation of the traction friction wheel body will drive the bevel gear to rotate through the first transmission tooth block. The rotation of the bevel gear will drive the fan blades to rotate through the guide rod. The rotation of the fan blades will generate wind flow, which will be ejected through the opening of the blow pipe. The ejected wind flow will blow away the impurities on the steel wire rope, preventing the steel wire rope from moving on the traction friction wheel body due to the impurities attached to its surface, causing excessive friction between it and the traction friction wheel body, thereby affecting the service life of the steel wire rope; and when the steel wire rope drives the traction friction wheel body to rotate, the traction friction wheel body will also drive the transmission through the tooth groove When the gear rotates, the transmission gear will drive the transmission rod to rotate through the second transmission tooth block, and the transmission rod will drive the transmission wheel to rotate. The transmission wheel will drive the bevel gear to rotate through the first transmission tooth block, and the two sets of first transmission tooth blocks drive the bevel gears in the same direction. Therefore, under the joint drive of the two sets of first transmission tooth blocks, the rotation speed of the bevel gear is greatly improved, the rotation speed of the fan blades is greatly improved, and the air flow ejected from the blow pipe is improved, which is beneficial to blow away impurities attached to the wire rope, and prevent the wire rope from moving on the traction friction wheel body due to impurities attached to its surface. The friction between the wire rope and the traction friction wheel body is too large, thereby affecting the service life of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a three-dimensional schematic diagram of the main structure of the traction friction wheel of the present invention;

[0021] Figure 3 It is a three-dimensional schematic diagram of the transmission wheel structure of the present invention;

[0022] Figure 4 It is a three-dimensional schematic diagram of the bevel gear structure of the present invention;

[0023] Figure 5 It is a three-dimensional schematic diagram of the blowing pipe structure of the present invention;

[0024] Figure 6 It is a three-dimensional schematic diagram of the transmission assembly structure of the present invention;

[0025] Figure 7 This is a three-dimensional schematic diagram of the installation shaft structure of the present invention;

[0026] Figure 8 This is a schematic cross-sectional view of the installation shaft structure of the present invention;

[0027] Fig. 9 It is a three-dimensional schematic diagram of the transmission rod structure of the present invention;

[0028] Fig.10 It is a three-dimensional schematic diagram of the transmission gear structure of the present invention.

[0029] In the figure: 1. baffle; 2. transmission wheel; 3. bevel gear; 4. blowing pipe; 5. traction friction wheel body; 6. mounting hole; 7. first transmission gear block; 8. tooth groove; 9. through hole; 10. limit groove; 11. guide rod; 12. fan blade; 13. annular block; 14. connecting block; 15. transmission gear; 16. cutout; 17. mounting shaft; 18. connecting hole; 19. rotating shaft; 20. positioning ring; 21. annular groove; 22. notch; 23. limit block; 24. positioning groove; 25. transmission rod; 26. second transmission gear block. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10 The present invention provides a technical solution: an elevator traction friction wheel structure.

[0032] Embodiment 1, an elevator traction friction wheel structure, comprising: a mounting shaft 17 having a cutout 16 formed on its surface, a transmission gear 15 formed on the inner wall of the cutout 16, a connecting hole 18 formed on the end of the mounting shaft 17, a transmission rod 25 formed on the inner wall of the connecting hole 18, a traction friction wheel body 5 sleeved on the outer surface of the mounting shaft 17, the traction friction wheel body 5 simultaneously drives the transmission gear 15 to rotate through the tooth groove 8, the rotation of the transmission gear 15 drives the transmission rod 25 to rotate through the second transmission tooth block 26, and the rotation of the transmission rod 25 drives the transmission wheel 2 to rotate.

[0033] A guide rod 11 is fixed to the end of the bevel gear 3, and a fan blade 12 is fixed to the outer surface of the end of the guide rod 11. A blowing tube 4 is sleeved on the outer surface of the guide rod 11. The rotation of the bevel gear 3 will drive the fan blade 12 to rotate through the guide rod 11. Since the fan blade is located inside the blowing tube 4, the rotation of the fan blade 12 will generate wind flow in a closed environment, and the generated wind flow will be ejected through the opening of the blowing tube 4. At the same time, the opening of the blowing tube 4 corresponds to the wire rope. The wire rope corresponding to the opening of the blowing tube 4 is the wire rope that is about to move on the surface of the traction friction wheel body 5. Therefore, the ejected wind flow will blow away impurities on the wire rope to prevent the wire rope from moving on the traction friction wheel body 5 due to impurities attached to its surface, causing excessive friction between it and the traction friction wheel body 5, thereby affecting the service life of the wire rope. A transmission wheel 2 is provided on the side of the bevel gear 3.

[0034] On the basis of Example 1, in order to prevent the service life of the wire rope from being affected by impurities attached to its surface when the wire rope moves on the traction friction wheel body 5, a rotating shaft 19 is fixed to the inner wall side surface of the incision 16, and a transmission gear 15 is sleeved on the outer surface of the rotating shaft 19. The rotating shaft 19 is movably connected to the transmission gear 15. A connecting block 14 is fixed to the outer surface of the mounting shaft 17 away from the traction friction wheel body 5. An annular groove 21 is provided on the end face of the connecting block 14, and a notch 22 penetrates the connecting block 14. A notch 22 is provided at the end of the annular groove 21.

[0035] A positioning ring 20 is fixed to the inner wall of the connecting hole 18, and a positioning groove 24 is opened on the outer surface of the transmission rod 25. The positioning ring 20 corresponds to the positioning groove 24 and is clamped to prevent the transmission rod 25 from deflecting when rotating in the connecting hole 18. A second transmission tooth block 26 is fixed to the outer surface of the transmission rod 25, and the second transmission tooth block 26 corresponds to the transmission gear 15. A baffle 1 is fixed to the end of the transmission rod 25 away from the traction friction wheel body 5, and a limiting block 23 is fixed to the outer surface of the transmission rod 25 near the baffle 1.

[0036] A mounting hole 6 is provided on the end face of the traction friction wheel body 5, and the mounting hole 6 penetrates the traction friction wheel body 5. The mounting hole 6 corresponds to the mounting shaft 17. A first transmission tooth block 7 is fixed to one end face of the traction friction wheel body 5. Since the first transmission tooth block 7 on the transmission wheel 2 is symmetrical with the first transmission tooth block 7 on the traction friction wheel body 5, the rotation of the transmission wheel 2 will drive the bevel gear 3 to rotate through the first transmission tooth block 7, and the two groups of first transmission tooth blocks 7 drive the bevel gear 3 in the same direction. Therefore, under the common drive of the two groups of first transmission tooth blocks 7, the rotation speed of the bevel gear 3 is greatly improved, the rotation speed of the fan blades 12 is greatly improved, and the wind flow ejected from the blowing pipe 4 is improved, which is conducive to blowing away impurities attached to the wire rope. A tooth groove 8 is provided on the inner wall of the mounting hole 6, and the tooth groove 8 corresponds to the transmission gear 15.

[0037] The bevel gear 3 is arranged on the outer surface of the mounting shaft 17 near the baffle 1, and the bevel gear 3 is movably connected to the mounting shaft 17. The bevel gear 3 corresponds to the connecting block 14. An annular block 13 is fixed on the outer surface of the blowing pipe 4. The annular block 13 corresponds to and is clamped in the annular groove 21, and the annular block 13 is fixedly connected to the annular groove 21.

[0038] The diameter of the notch 22 is the same as the diameter of the outer surface of the blowing pipe 4, the diameter of the annular groove 21 is the same as the diameter of the annular block 13, and the diameter of the annular groove 21 is larger than the diameter of the notch 22, so the annular block 13 will not fall out of the annular groove 21, so the blowing pipe 4 will not fall out of the connecting block 14, which has a stabilizing effect on the fixed connection between the blowing pipe 4 and the connecting block 14.

[0039] The transmission wheel 2 is arranged on the outer surface of the transmission rod 25 near the baffle 1, and a first transmission tooth block 7 is fixed on one end surface. The first transmission tooth block 7 fixed on the surface of the transmission wheel 2 is symmetrically distributed with the first transmission tooth block 7 fixed on the surface of the traction friction wheel body 5. The bevel gear 3 is located between the transmission wheel 2 and the traction friction wheel body 5. A through hole 9 is opened on the end surface of the transmission wheel 2, and the through hole 9 penetrates the transmission wheel 2.

[0040] The inner wall of the through hole 9 is provided with a limit groove 10, and the limit groove 10 is provided with multiple groups. The multiple groups of limit grooves 10 are distributed in a circle on the inner wall of the through hole 9, and the limit block 23 corresponds to and is clamped in the limit groove 10, and the two are movably connected. Since the limit block 23 is clamped in the limit groove 10, a limit is formed between the transmission rod 25 and the transmission wheel 2, so the rotation of the transmission rod 25 will drive the transmission wheel 2 to rotate.

[0041] The length of the transmission rod 25 is greater than the depth of the connection hole 18 , and the distance between the surface of the baffle 1 and the end face of the mounting shaft 17 near the end of the connection hole 18 is the same as the thickness of the transmission wheel 2 .

[0042] In actual use, when the wire rope moves on the traction friction wheel body 5, the traction friction wheel body 6 will rotate on the installation shaft 17 due to the friction force. The rotation of the traction friction wheel body 5 will drive the bevel gear 3 to rotate through the first transmission tooth block 7. The rotation of the bevel gear 3 will drive the fan blade 12 to rotate through the guide rod 11. Since the fan blade is located inside the blowing pipe 4, the rotation of the fan blade 12 in a closed environment will generate wind flow, and the generated wind flow will be ejected through the opening of the blowing pipe 4. At the same time, the opening of the blowing pipe 4 corresponds to the wire rope. The wire rope corresponding to the opening of the blowing pipe 4 is the wire rope that is about to move on the surface of the traction friction wheel body 5. Therefore, the ejected wind flow will blow away impurities on the wire rope to prevent the wire rope from moving on the traction friction wheel body 5 due to impurities attached to its surface, causing excessive friction between it and the traction friction wheel body 5, thereby affecting the service life of the wire rope; and when the wire rope drives the traction friction wheel body 5 to rotate, the traction friction wheel body 5 will simultaneously drive the transmission tooth through the tooth groove 8 When the wheel 15 rotates, the transmission gear 15 rotates, which will drive the transmission rod 25 to rotate through the second transmission tooth block 26. Since the limit block 23 is stuck in the limit groove 10, a limit is formed between the transmission rod 25 and the transmission wheel 2, so the rotation of the transmission rod 25 will drive the transmission wheel 2 to rotate. Since the first transmission tooth block 7 on the transmission wheel 2 is symmetrical with the first transmission tooth block 7 on the traction friction wheel main body 5, the rotation of the transmission wheel 2 will drive the bevel gear 3 to rotate through the first transmission tooth block 7, and the two groups of first transmission tooth blocks 7 drive the bevel gear 3 in the same direction. Therefore, under the common drive of the two groups of first transmission tooth blocks 7, the rotation speed of the bevel gear 3 is greatly improved, the rotation speed of the fan blade 12 is greatly improved, and the wind flow ejected from the blowing pipe 4 is improved, which is conducive to blowing away impurities attached to the wire rope, and preventing the wire rope from moving on the traction friction wheel main body 5 due to impurities attached to its surface. The friction between the traction friction wheel main body 5 is too large, thereby affecting the service life of the wire rope. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator traction friction wheel structure, characterized in that: include: A mounting shaft (17), a surface of the mounting shaft (17) is provided with a cutout (16), an inner wall of the cutout (16) is provided with a transmission gear (15), an end of the mounting shaft (17) is provided with a connection hole (18), an inner wall of the connection hole (18) is provided with a transmission rod (25), and an outer surface of the mounting shaft (17) is sleeved with a traction friction wheel body (5); A bevel gear (3) is provided with a guide rod (11) fixed at the end of the bevel gear (3), a fan blade (12) is fixed on the outer surface of the end of the guide rod (11), a blow pipe (4) is sleeved on the outer surface of the guide rod (11), and a transmission wheel (2) is provided on the side of the bevel gear (3).

2. An elevator traction friction wheel structure according to claim 1, characterized in that: A rotating shaft (19) is fixed on the inner wall side surface of the cutout (16), a transmission gear (15) is sleeved on the outer surface of the rotating shaft (19), and the rotating shaft (19) and the transmission gear (15) are movably connected. A connecting block (14) is fixed on the outer surface of the mounting shaft (17) away from the traction friction wheel body (5), an annular groove (21) is formed on the end surface of the connecting block (14), the notch (22) penetrates the connecting block (14), and a notch (22) is formed near the end of the annular groove (21).

3. An elevator traction friction wheel structure according to claim 2, characterized in that: A positioning ring (20) is fixed on the inner wall of the connecting hole (18); a positioning groove (24) is provided on the outer surface of the transmission rod (25); a second transmission tooth block (26) is fixed on the outer surface of the transmission rod (25); the second transmission tooth block (26) corresponds to the transmission gear (15); a baffle (1) is fixed on the end of the transmission rod (25) away from the traction friction wheel body (5); and a limit block (23) is fixed on the outer surface of the transmission rod (25) near the baffle (1).

4. An elevator traction friction wheel structure according to claim 3, characterized in that: The end surface of the traction friction wheel body (5) is provided with a mounting hole (6), the mounting hole (6) penetrates the traction friction wheel body (5), the mounting hole (6) corresponds to the mounting shaft (17), a first transmission gear block (7) is fixed to one end surface of the traction friction wheel body (5), the inner wall of the mounting hole (6) is provided with a tooth groove (8), and the tooth groove (8) corresponds to the transmission gear (15).

5. The elevator traction friction wheel structure according to claim 4, characterized in that: The bevel gear (3) is arranged on the outer surface of the mounting shaft (17) near the baffle (1), the bevel gear (3) and the mounting shaft (17) are movably connected, the bevel gear (3) corresponds to the connecting block (14), an annular block (13) is fixed on the outer surface of the blowing pipe (4), the annular block (13) corresponds to and is clamped with the annular groove (21), and the annular block (13) and the annular groove (21) are fixedly connected.

6. An elevator traction friction wheel structure according to claim 5, characterized in that: The diameter of the notch (22) is the same as the diameter of the outer surface of the blowing pipe (4), the diameter of the annular groove (21) is the same as the diameter of the annular block (13), and the diameter of the annular groove (21) is larger than the diameter of the notch (22).

7. An elevator traction friction wheel structure according to claim 6, characterized in that: The transmission wheel (2) is arranged on the outer surface of a transmission rod (25) near the baffle plate (1); a first transmission tooth block (7) is fixed to one end surface; the first transmission tooth block (7) fixed to the surface of the transmission wheel (2) and the first transmission tooth block (7) fixed to the surface of the traction friction wheel body (5) are symmetrically distributed; the bevel gear (3) is located between the transmission wheel (2) and the traction friction wheel body (5); a through hole (9) is opened on the end surface of the transmission wheel (2); and the through hole (9) penetrates the transmission wheel (2).

8. An elevator traction friction wheel structure according to claim 7, characterized in that: The inner wall of the through hole (9) is provided with a limit groove (10), and the limit groove (10) is provided with a plurality of groups. The plurality of groups of limit grooves (10) are distributed in a circular pattern on the inner wall of the through hole (9), and the limit block (23) corresponds to and is clamped with the limit groove (10), and the two are movably connected.

9. An elevator traction friction wheel structure according to claim 8, characterized in that: The length of the transmission rod (25) is greater than the depth of the connection hole (18), and the distance between the surface of the baffle (1) and the end surface of the mounting shaft (17) near the end of the connection hole (18) is the same as the thickness of the transmission wheel (2).

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