A thin oil lubricated modular drum gear shaft, continuous rolling equipment and continuous rolling production line

Abstract

The present invention discloses a thin oil lubricated modular drum gear coupling, continuous rolling equipment and continuous rolling production line, which belongs to the technical field of drum gear couplings. The coupling includes: a roll end assembly, a tooth end assembly, a main shaft assembly, a roll end external tooth assembly and a tooth end external tooth assembly; the main shaft assembly includes a main shaft, a spring device and a sealing oil pipe device, the spring device has an oil inlet cavity connected to the sealing oil pipe device to form a main oil inlet circuit, and a main oil return circuit is provided on the main shaft; an oil inlet is provided in the tooth end assembly, and an oil filling point is provided inside the gear box, and the oil inlet, the first oil inlet circuit, the second oil inlet circuit and the main oil inlet circuit form an oil inlet circuit; the first oil return circuit, the second oil return circuit and the main oil return circuit form an oil return circuit. The thin oil returns to the oil collecting tank through the oil return circuit, is filtered and cooled by the lubrication station and then flows back to the gear box, and then re-enters the oil inlet circuit to form an oil circuit closed loop.

Description

Technical Field

[0001] The present invention belongs to the technical field of drum gear couplings, and more specifically, relates to a thin oil lubricated modular drum gear coupling, continuous rolling equipment, and a continuous rolling production line. Background Art

[0002] The development of major metallurgical equipment technologies, such as hot and cold rolling mills, has led to new demands for technologies such as drum gear couplings. In cold rolling mills in particular, comprehensive requirements are being placed on shaft dimensions, telescopic travel, and speed. These requirements not only address higher speeds and torques for standard specifications, but also for smaller sizes, slender shafts, and long telescopic travels, which traditional drum gear couplings are no longer able to meet. Japan has introduced long telescopic, high-speed, small-size, semi-oil-lubricated transmission couplings for cold rolling mills and other applications, and these have been adopted by most cold and hot rolling mills in my country.

[0003] For the above-mentioned thin oil lubricated drum gear coupling (coupling), the company has applied for relevant patents, such as Chinese patents CN202185456U, CN113909306A, CN109372899A, etc., as well as the Chinese patent CN203822883U applied by the company, which discloses a sleeve-type thin oil lubricated drum gear coupling, which integrates the shaft and sleeve and realizes "oil inlet into the shaft and oil return to the sleeve", and uses the lubricating oil of the gear base to realize dynamic circulation lubrication of oil supply and return. Combining the structures of these patents, it can be seen that the thin oil is injected from the center or outside of the coupling, and then the closed loop of the oil inlet and return circuits is used to achieve thin oil lubrication.

[0004] In addition, Chinese patent CN204035193U discloses an internal circulation thin oil lubricated drum gear coupling, which forms pressure return oil by drilling an eccentric oil return channel directly on the intermediate shaft and utilizing the centrifugal force of the rotating drum gear coupling shaft. However, the lubricating oil first enters the oil supply ring (located on the outside of the coupling shaft) through the workshop pipeline; since the center through hole is connected to the oil supply ring through the oil supply hole; therefore, the lubricating oil enters the center through hole.

[0005] The above-mentioned thin oil inlet structure cannot meet the requirements of use on certain continuous rolling production lines, such as the limitation of on-site environment space, and the oil inlet method outside the coupling shaft is prone to oil leakage and other problems. Summary of the Invention

[0006] 1. Problem to be solved

[0007] In response to the above problems, the present invention provides a thin oil lubricated modular drum gear coupling, which optimizes the structure of the drum gear and the thin oil circuit, uses the thin oil to remove the heat generated by the operation of the gear, and reduces the temperature of the gear during operation.

[0008] 2. Technical solution

[0009] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0010] A first aspect of the present invention provides a thin oil lubricated modular drum gear coupling, comprising:

[0011] Roller end assembly and tooth end assembly for connecting external equipment;

[0012] Spindle assembly that realizes torque transmission and buffering;

[0013] and roller-end external tooth components and tooth-end external tooth components for torque transmission and angle compensation of drum-shaped teeth;

[0014] The main shaft assembly is connected to the roller end external tooth assembly and the tooth end external tooth assembly by using hinged hole bolts;

[0015] The spindle assembly includes a spindle, a spring device and a sealing oil pipe device, wherein the spring device has a through hole connected to the sealing oil pipe device to form a main oil supply path, and a main oil return path is provided on the spindle;

[0016] After the tooth end external tooth assembly is connected to the tooth end assembly, a first closed cavity is formed, and a first oil inlet and a first oil return are provided in the first closed cavity; after the roller end external tooth assembly is connected to the roller end assembly, a second closed cavity is formed, and a second oil inlet and a second oil return are provided in the second closed cavity;

[0017] An oil inlet is set in the tooth end assembly, and an oil filling point is set inside the gear box. The oil inlet, the first oil inlet circuit, the second oil inlet circuit and the main oil inlet circuit form an oil inlet circuit; the first oil return circuit, the second oil return circuit and the main oil return circuit form an oil return circuit.

[0018] According to any implementation scheme of the first aspect of the purpose of the present invention, the main shaft assembly also includes a retaining ring, a spline sleeve, a centering ring and a limit sleeve; the main shaft is ringed with an oil return hole and a step hole is opened along its central axis, the spring device and the sealing oil pipe device are placed in the step hole in sequence, the sealing oil pipe device includes an oil inlet pipe, an oil inlet cavity and an oil return cavity, one end of the oil inlet pipe is connected to a first end sleeve, the other end is connected to a second end sleeve, and the external device of the second end sleeve is connected to a sealing sleeve.

[0019] According to any embodiment of the first aspect of the present invention, the roller end assembly includes a roller end sleeve, a wear-resistant lining and a roller end connecting plate, the roller end sleeve is provided with an axial hole along the central axis, and a stop protrusion is provided on the inner side of the axial hole, the wear-resistant lining is fixed in the axial hole, and the roller end connecting plate is fixed on the stop protrusion and sealed.

[0020] According to any embodiment of the first aspect of the present invention, the roller end external tooth assembly includes a roller end sealing assembly and a roller end external tooth sleeve; the roller end sealing assembly includes a roller end top block, a roller end pressure cover, a roller end sealing cover, and a roller end sealing pressure cover, and the roller end external tooth sleeve is provided with a roller end oil inlet hole and a roller end oil return hole provided around the roller end oil inlet hole along the center axis; the oil inlet hole A is provided on the roller end top block and is placed on one side of the roller end oil inlet hole and is arranged opposite to the roller end connecting disk, and the roller end top block has a convex surface that cooperates with the concave surface of the roller end connecting disk.

[0021] According to any implementation scheme of the first aspect of the purpose of the present invention, the tooth end external tooth assembly includes a tooth end external tooth sleeve and a tooth end sealing assembly, and the tooth end sealing assembly includes a tooth end sealing pressure cover, a tooth end sealing cover, a tooth end pressure cover and a tooth end top block; the tooth end external tooth sleeve is provided with a tooth end oil inlet hole and a tooth end oil return hole provided around the tooth end oil inlet hole; the tooth end top block is provided with an oil inlet hole B connected to the tooth end oil inlet hole.

[0022] According to any embodiment of the first aspect of the present invention, the tooth end assembly includes a tooth end connecting plate and a tooth end sleeve, the tooth end connecting plate is fixed on the tooth end sleeve, and the tooth end connecting plate has a concave surface that cooperates with the convex surface of the tooth end top block.

[0023] According to any embodiment of the first aspect of the present invention, the first oil inlet path includes a tooth end oil inlet hole, and the second oil inlet path includes a roller end oil inlet hole. A part of the thin oil flows along the tooth end connecting plate, the tooth end top block, the tooth end oil inlet hole, the through hole in the spring device, the oil inlet cavity of the oil inlet pipe, and the roller end oil inlet hole, and enters the roller end lubrication cavity through the roller end top block to lubricate the roller end teeth; another part of the thin oil directly enters the tooth end lubrication cavity through the radial oil hole of the tooth end connecting plate.

[0024] According to any embodiment of the first aspect of the present invention, the first oil return circuit includes a tooth end oil return hole, and the second oil return circuit includes a roller end oil return hole. After the roller end tooth portion is lubricated, the thin oil passes through the oil return cavity and the oil return hole along the roller end oil return hole into the spline pair, and returns to the external oil collecting tank after lubricating the spline; another part of the thin oil enters the tooth end lubrication cavity, and after lubricating the tooth end tooth portion, the thin oil directly enters the spline pair cavity from the tooth end oil return hole, and returns to the external oil collecting tank after lubricating the spline.

[0025] According to any embodiment of the first aspect of the present invention, seals are provided on the mating surfaces between the roller end external tooth assembly, the main shaft assembly, and the tooth end external tooth assembly; in addition to the stop seal between the roller end external tooth sleeve and the main shaft, inner and outer sealing rings are provided at the cross section of the roller end oil return hole.

[0026] According to any embodiment of the first aspect of the present invention, an oil hole is provided on the inner cavity wall of the spring device, and when the thin oil enters the oil cavity through the spring device, the compression spring is lubricated synchronously, thereby increasing the service life of the compression spring.

[0027] According to any implementation scheme of the first aspect of the present invention, the main shaft oil return hole is provided with multiple oil outlet holes to ensure that the splines inside the spline sleeve are always in a thin oil lubrication state when the connecting shaft is in telescopic motion, thereby greatly improving the service life of the spline pair.

[0028] According to any embodiment of the first aspect of the present invention, the roller end sealing cover and the tooth end sealing cover are both provided with sealing convex lines on their matching flange surfaces, which improve the sealing effect and prevent leakage of thin oil after the sealing cover is assembled.

[0029] A second aspect of the present invention provides a continuous rolling equipment having the thin oil lubricated modular drum gear shaft described in the first aspect.

[0030] A third aspect of the present invention provides a continuous rolling production line having the continuous rolling equipment according to the second aspect.

[0031] 3. Beneficial effects

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] (1) The thin oil lubricated modular drum gear coupling of the present invention has hinged hole bolts between the roller end outer tooth assembly, the main shaft assembly and the tooth end outer tooth assembly. The roller end outer tooth assembly and the tooth end outer tooth assembly mainly provide functions such as drum gear torque transmission, angle compensation, and lubrication cavity sealing; the main shaft assembly mainly provides functions such as torque transmission, telescopic requirements, and spring buffering; the roller end assembly and the tooth end assembly mainly provide functions such as torque transmission and series connection of front and rear equipment; the above-mentioned different components are connected in series and independently of each other, and damaged components can be replaced according to usage, which is convenient for later maintenance costs; at the same time, the oil inlet, the first oil inlet, the second oil inlet and the main oil inlet form an oil inlet oil circuit; the first oil return circuit, the second oil return circuit and the main oil return form an oil return oil circuit. While forming an anti-wear oil film on the tooth part of the coupling, the thin oil is used to take away the heat generated by the operation of the tooth part through the dynamic circulation system, thereby reducing the temperature of the tooth part during operation.

[0034] (2) The thin oil lubricated modular drum gear coupling of the present invention needs to be sealed on the mating surfaces between the roller end external gear assembly, the main shaft assembly, and the tooth end external gear assembly to ensure airtightness after connection; in addition to the seals on the stopper between the roller end external gear sleeve and the main shaft, internal and external sealing rings need to be provided at the cross section of the roller end oil return hole to ensure normal oil circuit after connection; a sealing ring is provided on the oil inlet pipe to isolate the oil hole of the oil inlet pipe from the oil return cavity of the oil inlet pipe to ensure normal oil circuit and oil return circuit.

[0035] (3) The thin oil lubricated modular drum-shaped gear coupling of the present invention has an oil hole provided on the inner wall of the spring device. When the thin oil enters the oil cavity through the spring device, the compression spring is lubricated synchronously, thereby increasing the service life of the compression spring.

[0036] (4) The thin oil lubricated modular drum gear coupling of the present invention has a main shaft oil return hole with multiple oil outlet holes, which ensures that the splines inside the spline sleeve are always in a thin oil lubricated state when the coupling is in telescopic action, greatly improving the service life of the spline pair.

[0037] (5) The oil-lubricated modular drum-shaped gear coupling of the present invention has sealing convex lines on the roller end sealing cover, the tooth end sealing ring and the matching flange surface. After the sealing cover is assembled, the sealing effect is improved to avoid leakage of oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, unless otherwise specified, these drawings are intended only to conceptually illustrate the structures described herein and are not necessarily drawn to scale.

[0039] Figure 1 This is a diagram showing the use of the oil-lubricated modular drum gear coupling according to the present invention;

[0040] Figure 2 This is a schematic structural diagram of the modular drum gear coupling shaft lubricated with thin oil according to the present invention;

[0041] Figure 3 for Figure 1 Magnified view of the X part;

[0042] Figure 4 for Figure 1 Enlarged view of the Y part;

[0043] Figure 5 This is a schematic diagram of the connection between the roller end assembly, the roller end external gear assembly and the main shaft assembly of the present invention;

[0044] Figure 6 This is a schematic structural diagram of the roller end sealing cover and the flange surface of the present invention;

[0045] Figure 7 It is a structural schematic diagram of the main shaft assembly of the present invention;

[0046] Figure 8 It is a partial enlarged structural schematic diagram of the main shaft assembly of the present invention;

[0047] Figure 9 This is a schematic diagram of the structure of the tooth end sealing cover matching the flange surface of the present invention;

[0048] Description of reference numerals:

[0049] A. Roller end assembly; 1. Roller end bushing; 1-1. Shaft hole; 1-2. Stop protrusion; 2. Wear-resistant lining; 3. Roller end connecting plate;

[0050] B, Roller end external gear assembly; 4, Roller end top block; 4-1, Oil inlet hole A; 5, Roller end gland; 6, Roller end sealing cover; 6-1, Sealing ridge A; 7, Roller end sealing gland; 8, Roller end external gear sleeve; 8-1, Roller end oil inlet hole; 8-2, Roller end oil return hole; 8-3, Sealing ring;

[0051] C. Spindle assembly; 9. Spindle; 9-1. Spindle oil return hole; 9-2. Step hole; 9-3. Oil outlet hole; 10. Sealing oil pipe assembly; 10-1. Oil inlet pipe; 10-2. Oil inlet cavity; 10-3. Oil return cavity; 10-4. First end sleeve; 10-5. Second end sleeve; 10-6. Sealing sleeve; 11. Spring assembly; 11-1. Center through hole; 11-2. Oil through hole; 12. Retaining ring; 13. Spline sleeve; 14. Centering ring; 15. Limit sleeve;

[0052] D, tooth end external gear assembly; 16, tooth end external gear sleeve; 16-1, tooth end oil inlet hole; 16-2, tooth end oil return hole; 17, tooth end sealing cover; 18, tooth end sealing cover; 18-1, sealing convex line B; 19, tooth end cover; 20, tooth end top block; 20-1, oil inlet hole B;

[0053] E, tooth end assembly; 21, tooth end connecting plate; 21-1, radial oil hole; 22, tooth end bushing; 23, oil inlet;

[0054] F. Gear box;

[0055] G. Oil collecting tank. DETAILED DESCRIPTION

[0056] The following detailed description of exemplary embodiments of the present invention refers to the accompanying drawings, which form a part of the description, and in which exemplary embodiments of the present invention that can be implemented are shown as examples. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments can be implemented and various changes can be made to the present invention without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, so as to propose the best way to perform the present invention and be sufficient to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0057] The following detailed description of the present invention and example embodiments may be better understood with reference to the accompanying drawings, in which elements and features of the present invention are identified by reference numerals.

[0058] like Figures 1 to 9 As shown, the oil-lubricated modular drum gear coupling of this embodiment includes: a roller end assembly A and a tooth end assembly E for connecting external equipment; a main shaft assembly C for realizing torque transmission and buffering; and a roller end external tooth assembly B and a tooth end external tooth assembly D for drum gear torque transmission and angle compensation.

[0059] The above-mentioned external equipment includes but is not limited to rolling mills. The oil-lubricated modular drum gear shaft of this embodiment can be used for the transmission of continuous rolling mills, mainly involving major metallurgical equipment such as hot rolling lines and cold rolling mills.

[0060] Combine Figure 1 、 Figure 2 、 Figure 8 As shown, the main shaft assembly C (with a telescopic structure) includes a main shaft 9, a spring device 11, a sealing oil pipe device 10, a retaining ring 12, a spline sleeve 13, a centering ring 14 and a limit sleeve 15. The spring device (see the structure disclosed in CN113909306A) 11 has a central through hole 11-1 connected to the sealing oil pipe device 10 to form a main oil inlet path, and a main oil return path is provided on the main shaft 9; a main shaft return oil hole 9-1 is provided on the main shaft 9 and a step hole 9-2 is provided along its central axis. The spring device 11 and the sealing oil pipe device 10 are placed in the step hole 9-2 in sequence. The sealing oil pipe device 10 includes an oil inlet pipe 10-1, an oil inlet cavity 10-2 and an oil return cavity 10-3. One end of the oil inlet pipe 10-1 is connected to a first end sleeve 10-4, and the other end is connected to a second end sleeve 10-5. The external device of the second end sleeve 10-5 is connected to a sealing sleeve 10-6.

[0061] It should be noted that the oil inlet pipe 10-1, the first end sleeve 10-4 and the second end sleeve 10-5 are obtained by welding and have good sealing performance; at the same time, the sealing oil pipe device 10 arranged on the main shaft 9 has good adaptability and fully considers the variable diameter of the main shaft. For example, when the diameters of the two ends of the main shaft 9 change, the sealing oil pipe device 10 is adaptively designed with the main shaft structure to ensure the smoothness of the thin oil circuit.

[0062] Combine Figure 7 As shown, the main shaft oil return hole 9-1 is provided with multiple oil outlet holes 9-3, so that the splines inside the spline sleeve 13 are always in a thin oil lubrication state when the connecting shaft is in telescopic action, which greatly improves the service life of the spline pair.

[0063] Further, such as Figure 7As shown, an oil hole 11-2 is provided on the inner cavity wall of the spring device 11. When the thin oil enters the oil cavity 10-2 through the spring device 11, the compression spring is lubricated synchronously, thereby increasing the service life of the compression spring.

[0064] In this embodiment, after the tooth end external tooth component D is connected to the tooth end component E, a first closed cavity is formed, and a first oil inlet circuit and a first oil return circuit are provided in the first closed cavity; after the roller end external tooth component B is connected to the roller end component A, a second closed cavity is formed, and a second oil inlet circuit and a second oil return circuit are provided in the second closed cavity.

[0065] Furthermore, an oil inlet 23 is provided in the tooth end assembly E. Figure 1 In the embodiment, by setting up oil filling points inside the gearbox F, the oil inlet 23, the first oil inlet, the second oil inlet, and the main oil inlet form an oil inlet circuit; the first oil return, the second oil return, and the main oil return form an oil return circuit. The oil inlet 23, the first oil inlet, the second oil inlet, and the main oil inlet form an oil inlet circuit; the first oil return, the second oil return, and the main oil return form an oil return circuit. While forming an anti-wear oil film on the coupling teeth, the thin oil removes heat generated by the gear teeth through a dynamic circulation system (the arrows in the figure indicate the direction of movement of the thin oil), thereby reducing the temperature of the gear teeth during operation.

[0066] exist Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 In the figure, the roller end assembly A includes a roller end sleeve 1, a wear-resistant lining 2 and a roller end connecting plate 3. The roller end sleeve 1 is provided with an axial hole 1-1 along the central axis, and a stop protrusion 1-2 is provided on the inner side of the axial hole 1-1. The wear-resistant lining 2 is fixed in the axial hole 1-1, and the roller end connecting plate 3 is fixed on the stop protrusion 1-2 and sealed.

[0067] Specifically, the roller end external tooth assembly B includes a roller end sealing assembly and a roller end external tooth shaft sleeve 8; the roller end sealing assembly includes a roller end top block 4, a roller end pressure cover 5, a roller end sealing cover 6, and a roller end sealing pressure cover 7. The roller end external tooth shaft sleeve 8 is provided with a roller end oil inlet hole 8-1 and a roller end oil return hole 8-2 provided around the roller end oil inlet hole 8-1 along the center axis; the oil inlet hole A4-1 is provided on the roller end top block 4 and is placed on one side of the roller end oil inlet hole 8-1, opposite to the roller end connecting disk 3. The roller end top block 4 has a convex surface that cooperates with the concave surface of the roller end connecting disk 3. The contact surface is a circular arc convex (concave) surface, which bears the impact of the connecting shaft, satisfies the angle compensation of the drum tooth, and keeps the oil path unobstructed.

[0068] like Figure 6 As shown, the mating flange surface of the roller end sealing cover 6 is provided with a sealing convex line A6-1, which improves the sealing effect and prevents leakage of the thin oil after the sealing cover is assembled.

[0069] Furthermore, the tooth end external tooth assembly D includes a tooth end external tooth shaft sleeve 16 and a tooth end sealing assembly, and the tooth end sealing assembly includes a tooth end sealing cover 17, a tooth end sealing cover 18, a tooth end pressure cover 19 and a tooth end top block 20; the tooth end external tooth shaft sleeve 16 is provided with a tooth end oil inlet hole 16-1 and a tooth end oil return hole 16-2 provided around the tooth end oil inlet hole 16-1; the tooth end top block 20 is provided with an oil inlet hole B20-1 connected to the tooth end oil inlet hole 16-1.

[0070] In this embodiment, if Figure 3 and Figure 4 As shown, the tooth end assembly E includes a tooth end connecting disc 21 and a tooth end sleeve 22. The tooth end connecting disc 21 is fixed on the tooth end sleeve 22. The tooth end connecting disc 21 has a concave surface that cooperates with the convex surface of the tooth end top block 20. The contact surface is a circular arc convex (concave) surface, which bears the impact of the connecting shaft, meets the drum tooth angle compensation, and keeps the oil circuit unobstructed.

[0071] In this embodiment, the first oil inlet path includes the tooth end oil inlet hole 16-1, and the second oil inlet path includes the roller end oil inlet hole 8-1. A part of the thin oil flows along the tooth end connecting disk 21, the tooth end top block 20, the tooth end oil inlet hole 16-1, the through hole 11-1 in the spring device 11, the oil inlet cavity 10-2 of the oil inlet pipe 10-1, and the roller end oil inlet hole 8-1, and enters the roller end lubrication cavity through the roller end top block 4 to lubricate the roller end teeth; the other part of the thin oil directly enters the tooth end lubrication cavity through the radial oil hole 21-1 of the tooth end connecting disk 21.

[0072] In this embodiment, the first oil return circuit includes the tooth end oil return hole 16-2, and the second oil return circuit includes the roller end oil return hole 8-2. After the roller end teeth are lubricated, the thin oil flows along the roller end oil return hole 8-2 through the oil return cavity 10-3 and the oil return hole into the spline pair, lubricates the splines, and then returns to the external oil collecting tank G; another part of the thin oil enters the tooth end lubrication cavity, lubricates the tooth end teeth, and then directly enters the spline pair cavity from the tooth end oil return hole 16-2, lubricates the splines, and then returns to the external oil collecting tank G.

[0073] In addition, in this embodiment, Figure 5 As shown, seals are provided on the mating surfaces between the roller end external tooth component B, the main shaft component C, and the tooth end external tooth component D. In addition to the stop seal, the roller end external tooth shaft sleeve 8 and the main shaft 9 are provided with inner and outer sealing rings 8-3 at the cross section of the roller end oil return hole 8-2. The inner and outer here refer to the two sides of the oil return circuit. The sealing ring 8-3 is an O-type oil-proof sealing ring made of rubber.

[0074] like Figure 9 As shown, the tooth end sealing cover 18 cooperates with the flange surface to set a sealing convex line B18-1, which improves the sealing effect and prevents leakage of thin oil after the sealing cover is assembled.

[0075] In this embodiment, the roller end external tooth shaft sleeve 8, the main shaft 9 and the tooth end external tooth shaft sleeve 16 are all designed and formed separately, and connecting flanges are provided on the outer side of their circumferential end faces. The main shaft assembly C and the roller end external tooth assembly B and the tooth end external tooth assembly D are connected with hinged hole bolts.

[0076] Therefore, the above-mentioned roller end external tooth component B and tooth end external tooth component D mainly provide functions such as drum tooth torque transmission, angle compensation, and lubrication cavity sealing; the main shaft component C mainly provides functions such as torque transmission, telescopic requirements, and spring buffering; the roller end component A and tooth end component E mainly provide functions such as torque transmission and series connection of front and rear equipment; the above-mentioned different components are connected in series and independently of each other, and damaged components can be replaced according to usage, which facilitates later maintenance costs.

Claims

1. A modular drum gear coupling with thin oil lubrication, comprising: Roller end assembly (A) and tooth end assembly (E) for connecting external equipment; The main shaft assembly (C) realizes torque transmission and buffering; And a roller end external tooth component (B) and a tooth end external tooth component (D) for drum gear torque transmission and angle compensation; characterized in that, The spindle assembly (C) comprises a spindle (9), a spring device (11) and a sealing oil pipe device (10); the spring device (11) has a central through hole (11-1) connected to the sealing oil pipe device (10) to form a main oil inlet path, and a main oil return path is provided on the spindle (9); After the tooth end external tooth assembly (D) is connected to the tooth end assembly (E), a first closed cavity is formed, and a first oil inlet and a first oil return are provided in the first closed cavity; after the roller end external tooth assembly (B) is connected to the roller end assembly (A), a second closed cavity is formed, and a second oil inlet and a second oil return are provided in the second closed cavity; An oil inlet (23) is provided in the tooth end assembly (E), and an oil filling point is provided inside the gear box (F). The oil inlet (23), the first oil inlet path, the second oil inlet path, and the main oil inlet path form an oil inlet path; and the first oil return path, the second oil return path, and the main oil return path form an oil return path.

2. The thin oil lubricated modular drum gear coupling according to claim 1, characterized in that: The main shaft assembly (C) further comprises a retaining ring (12), a spline sleeve (13), a centering ring (14) and a limiting sleeve (15); an oil return hole (9-1) is provided on the main shaft (9) and a step hole (9-2) is provided along its central axis; the spring device (11) and the sealing oil pipe device (10) are sequentially placed in the step hole (9-2); the sealing oil pipe device (10) comprises an oil inlet pipe (10-1), an oil inlet cavity (10-2) and an oil return cavity (10-3); one end of the oil inlet pipe (10-1) is connected to a first end sleeve (10-4), and the other end is connected to a second end sleeve (10-5); and the outer portion of the second end sleeve (10-5) is connected to a sealing sleeve (10-6).

3. The thin oil lubricated modular drum gear coupling according to claim 1, characterized in that: The roller end assembly (A) comprises a roller end sleeve (1), a wear-resistant lining plate (2) and a roller end connecting plate (3); the roller end sleeve (1) is provided with an axial hole (1-1) along the central axis, a stop protrusion (1-2) is provided on the inner side of the axial hole (1-1), the wear-resistant lining plate (2) is fixed in the axial hole (1-1), and the roller end connecting plate (3) is fixed on the stop protrusion (1-2) and sealed.

4. The thin oil lubricated modular drum gear coupling according to claim 3, characterized in that: The roller end outer tooth assembly (B) comprises a roller end sealing assembly and a roller end outer tooth shaft sleeve (8); the roller end sealing assembly comprises a roller end top block (4), a roller end pressure cover (5), a roller end sealing cover (6), and a roller end sealing pressure cover (7); the roller end outer tooth shaft sleeve (8) is provided with a roller end oil inlet hole (8-1) and a roller end oil return hole (8-2) arranged around the roller end oil inlet hole (8-1) along the central axis; the roller end top block (4) is provided with an oil inlet hole A (4-1), and is placed on one side of the roller end oil inlet hole (8-1) and is arranged opposite to the roller end connecting disk (3); the roller end top block (4) has a convex surface that matches the concave surface of the roller end connecting disk (3).

5. The thin oil lubricated modular drum gear coupling according to claim 4, characterized in that: The tooth end outer tooth assembly (D) further comprises a tooth end outer tooth shaft sleeve (16) and a tooth end sealing assembly, wherein the tooth end sealing assembly comprises a tooth end sealing gland (17), a tooth end sealing cover (18), a tooth end gland (19) and a tooth end top block (20); the tooth end outer tooth shaft sleeve (16) is provided with a tooth end oil inlet hole (16-1) and a tooth end oil return hole (16-2) arranged around the tooth end oil inlet hole (16-1); the tooth end top block (20) is provided with an oil inlet hole B (20-1) connected to the tooth end oil inlet hole (16-1).

6. The thin oil lubricated modular drum gear coupling according to claim 5, characterized in that: The tooth end assembly (E) comprises a tooth end connecting disc (21) and a tooth end shaft sleeve (22), wherein the tooth end connecting disc (21) is fixed on the tooth end shaft sleeve (22), and the tooth end connecting disc (21) has a concave surface that matches the convex surface of the tooth end top block (20).

7. The thin oil lubricated modular drum gear coupling according to claim 6, characterized in that: The first oil inlet path includes a tooth end oil inlet hole (16-1), and the second oil inlet path includes a roller end oil inlet hole (8-1). A portion of the thin oil flows along the tooth end connecting plate (21), the tooth end top block (20), the tooth end oil inlet hole (16-1), the through hole (11-1) in the spring device (11), the oil inlet cavity (10-2) of the oil inlet pipe (10-1), and the roller end oil inlet hole (8-1), and enters the roller end lubrication cavity through the roller end top block (4) to lubricate the roller end teeth; another portion of the thin oil directly enters the tooth end lubrication cavity through the radial oil hole (21-1) of the tooth end connecting plate (21).

8. The thin oil lubricated modular drum gear coupling according to claim 7, characterized in that: The first oil return circuit includes a tooth end oil return hole (16-2), and the second oil return circuit includes a roller end oil return hole (8-2). After the roller end tooth portion is lubricated, the thin oil flows along the roller end oil return hole (8-2) through the oil return cavity (10-3) and the oil return hole (9-1) into the spline pair, lubricates the spline, and then returns to the external oil collecting tank (G); another portion of the thin oil enters the tooth end lubrication cavity, lubricates the tooth end tooth portion, and then directly enters the spline pair cavity from the tooth end oil return hole (16-2), lubricates the spline, and then returns to the external oil collecting tank (G).

9. A continuous rolling equipment having the thin oil lubricated modular drum gear shaft according to any one of claims 1 to 8.

10. A continuous rolling production line comprising the continuous rolling equipment according to claim 9.

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