Novel axial sliding type two-end universal coupling with inner sleeve connected spline

Abstract

The utility model discloses a novel axial sliding type two-end universal coupling with an inner sleeve connected spline shaft, which relates to the technical field of mechanical transmission devices and comprises a driving machine end outer sleeve, a driven machine end outer sleeve and the inner sleeve connected spline shaft. Drum-shaped pin rollers are distributed between the inner sleeve and the driving machine end outer sleeve and between the rear portion of the inner sleeve connected spline shaft and the driven machine end outer sleeve. The device has the characteristics of strong bearing capacity, stable operation, high transmission efficiency and the like, and a fully-lubricated, sealed and dustless working environment is really realized; the driving machine end outer sleeve, the inner sleeve connected spline shaft and the driven machine end outer sleeve are provided with positioning marks, so that accurate angle positioning and assembling can be realized; according to the coupling device, the assembly precision of a driving machine end and a driven machine end is guaranteed, axial large-size displacement error compensation, 360-degree break angle error compensation and radial offset compensation are achieved, and the coupling device is small in overall size, long in service life, safe, reliable and convenient to mount and dismount and is a safe and efficient coupling device which is very suitable for being widely applied to mechanical power transmission chains.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission devices, in particular to an inner sleeve connected spline axial sliding type novel two-end universal coupling. Background Art

[0002] Couplings are a group of important components in a mechanical power transmission chain. They are usually a safe and efficient connection device between the driving end and the driven end. Their purpose is to efficiently and safely transfer the kinetic energy and torque of the driving end to the driven end. Classification of existing couplings: 1. Rigid couplings, Disadvantages: No buffering and shock absorption capabilities, no radial displacement error compensation capabilities, no axial displacement error compensation capabilities, no 360° angle error compensation capabilities; during assembly, the center lines of the connecting shafts at both ends must be highly concentric, the installation accuracy requirements are high, and the application range is narrow. Advantages: Rigid couplings have a simple structure, relatively low manufacturing costs, and are easy to disassemble and maintain;

[0003] 2. Interference coupling. Interference coupling is divided into interference coupling without elastic elements and interference coupling with elastic elements. 1) Interference coupling without elastic elements. Advantages: It has the ability to compensate for axial displacement errors, radial displacement errors, 360° angle error compensation, and a wide range of applications. Disadvantages: It does not have the ability to buffer and reduce vibration. 2) Interference coupling with elastic elements. Advantages: Because it contains elastic elements, it has the ability to compensate for axial displacement errors, radial displacement errors, 360° angle error compensation, and buffer and reduce vibration. Disadvantages: Due to the limitation of the strength of the elastic element material, the service life is relatively short and the application range is narrow.

[0004] The technicians designed a special coupling based on the actual working conditions of the current products. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of inner sleeve connected spline axial sliding universal coupling at both ends, which mainly solves the following two problems: 1. It can compensate for the axial displacement error, radial displacement error, and 360° angle error caused by adverse factors such as manufacturing error, installation error, load deformation, and temperature rise change in the working state between the driving machine and the driven machine, effectively improve the operating conditions of the entire system, and extend the service life of the entire system;

[0006] 2. Realize large torque transmission, realize large axial displacement compensation, realize accurate angular positioning of the driving machine end and the driven machine end, and it is easy to process and install.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of inner sleeve spline axial sliding universal coupling at both ends, including an outer sleeve at the driving machine end and an outer sleeve at the driven machine end, an inner sleeve spline shaft is arranged between the outer sleeve at the driving machine end and the outer sleeve at the driven machine end, the head of the inner sleeve spline shaft is sleeved with an inner sleeve arranged in the outer sleeve at the driving machine end, and the rear of the inner sleeve is limited on the outer sleeve at the driving machine end by a sealing cover, the rear of the inner sleeve spline shaft is limited in the outer sleeve at the driven machine end by an end cover, and drum rollers are distributed between the inner sleeve and the outer sleeve at the driving machine end, and between the rear of the inner sleeve spline shaft and the outer sleeve at the driven machine end.

[0008] Furthermore: the interior of the driving machine end outer sleeve and the interior of the driven machine end outer sleeve are respectively designed and processed into multiple inner arc grooves; the exterior of the large end behind the inner sleeve connected spline shaft is designed and processed into multiple outer arc grooves, and the exterior of the small end of the inner sleeve connected spline shaft is designed and processed into an external spline; the exterior of the inner sleeve is designed and processed into multiple outer arc grooves, and the interior of the inner sleeve is designed and processed into an internal spline.

[0009] Preferably: the inner sleeve-connected spline shaft and the inner sleeve are connected by a spline pair to achieve axial sliding and adjustment; a large cylindrical helical compression spring is provided in the middle of the rear of the spline shaft, a transparent oil path is designed in the front and rear of the inner sleeve-connected spline shaft, the inner sleeve is designed with a circumferential oil channel, and is provided with two straight-through pressure-injection oil cups, and a sealing cover is provided in the middle of the front end of the inner sleeve.

[0010] Furthermore: the drum roller adopts reasonable clearance matching to achieve the connection between the outer sleeve and the inner sleeve at the driving machine end and the connection between the rear of the inner sleeve connected spline shaft and the outer sleeve at the driven machine end.

[0011] Preferably: the front inner ring of the active machine end housing and the inner ring of the sealing cover are both provided with large sealing rings, a retaining ring is provided outside the large sealing ring of the active machine end housing, and a retaining ring is provided behind the large sealing ring in the sealing cover.

[0012] Preferably: a small sealing ring is provided on the inner ring of the end cover, a baffle is provided on the outside of the small sealing ring, and a small cylindrical helical compression spring is distributed around the end cover and the inner sleeve connected spline shaft.

[0013] Preferably, the driving machine end outer sleeve, the inner sleeve connected spline shaft, and the driven machine end outer sleeve are provided with marked blind holes, so as to realize accurate angle positioning and assembly.

[0014] Furthermore: the exterior of the driving machine end housing and the exterior of the driven machine end housing can be designed as a standard or non-standard installation interface, or the installation interface can be designed according to user requirements.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The outside of the driving machine end jacket and the driven machine end jacket are designed as standard (or non-standard) installation interfaces, or the installation interfaces are designed according to user requirements, and are connected with standard keys and bolts or screws to ensure and realize large torque transmission, easy installation, quick disassembly, strong versatility and simple processability.

[0017] 2. The inside of the outer sleeve at the driving machine end and the inside of the flange at the driven machine end are designed and processed into multiple inner arc grooves, the outside of the inner sleeve is designed and processed into multiple outer arc grooves, the inside of the inner sleeve is designed and processed into internal splines, the outside of the large end of the inner sleeve one-piece spline shaft is designed and processed into multiple outer arc grooves, the outside of the small end of the inner sleeve one-piece spline shaft is designed and processed into external splines, and the center of the inner sleeve one-piece spline shaft is designed and processed into a straight-through pressure-injected oil cup mounting hole and oil circuit and a large cylindrical helical compression spring locating hole. It has a simple structure and good processing technology. Conventional heat treatment can meet the design requirements of parts and components. It has low requirements on production equipment and is suitable for popularization, manufacturing and application by most enterprises.

[0018] 3. The outer sleeve and the inner sleeve at the driving machine end are directly connected by using a drum-shaped ball column and adopting a reasonable clearance fit. The inner sleeve and the small end of the inner sleeve one-piece spline shaft are connected through a spline pair, and the big end of the inner sleeve one-piece spline shaft is connected to the outer sleeve at the driven machine end through a drum-shaped ball column. The outer sleeve at the driving machine end, the drum-shaped ball column, the inner sleeve, the small end of the inner sleeve one-piece spline shaft, the big end of the inner sleeve one-piece spline shaft, the drum-shaped ball column, the outer sleeve at the driven machine end and the auxiliary accessories are effectively formed into a torque transmission chain with a reasonable clearance fit, which well solves the problem of compensation for large axial displacement, the problem of compensation for radial offset error, and the problem of compensation for 360° angle.

[0019] 4. The outer sleeve at the driving machine end uses a drum-shaped ball column, a retaining ring, a sealing cover, a retaining ring, a large sealing ring, and a straight-through pressure-injection oil cup to reasonably cooperate with the inner sleeve for limiting, sealing and oiling. The small end of the inner sleeve spline shaft and the inner sleeve are reasonably matched through a spline pair, a sealing cover, and a straight-through pressure-injection oil cup for limiting, sealing and oiling. The outer sleeve at the driven machine end uses a drum-shaped ball column, an end cover, a baffle, a small sealing ring, a large cylindrical spiral compression spring, and a small cylindrical spiral compression spring to reasonably cooperate with the large end of the inner sleeve spline shaft for limiting, sealing and oiling, so as to achieve a dust-free free connection working environment and improve the working life of a new type of inner sleeve spline axial sliding two-end universal coupling.

[0020] 5. A transparent oil path is designed from the small end to the large end of the inner sleeve spline shaft, and a circumferential oil channel is designed between the inner sleeve spline shaft and the inner sleeve spline pair. Through two straight-through pressure-injected oil cups, lubrication of the entire transmission chain is achieved, reducing losses and improving the service life and transmission torque efficiency of a new type of inner sleeve spline axial sliding universal coupling at both ends.

[0021] 6. Compared with the drum-type gear coupling, a new type of universal coupling with an inner sleeve connected spline axial sliding at both ends has large axial displacement compensation, large 360° angle error compensation, and naturally large radial offset compensation. In addition, the manufacturing process is simple and does not require special treatment and special equipment for special processing of drum-shaped teeth. It has excellent performance and relatively low cost.

[0022] 7. Compared with the ball cage universal coupling, it has a large contact area within the elastic range, large transmission torque, simple manufacturing process, and does not require special treatment and other special equipment. Under the same conditions, the overall performance is excellent and the cost is relatively low.

[0023] 8. Compared with the diaphragm coupling, it has large transmission torque, large axial displacement error compensation, large 360° angle error compensation, large radial offset compensation, small overall size, long life, safe and reliable, and easy installation and disassembly.

[0024] 9. The outer sleeve of the driving machine end, the inner sleeve spline shaft and the outer sleeve of the driven machine end are equipped with positioning marks, which can achieve accurate angle positioning and assembly, and ensure the angular displacement accuracy of the driving machine end and the driven machine end. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of direction A;

[0027] Figure 3 This is the enlarged structural diagram of point B;

[0028] Figure 4 This is the enlarged structural diagram of point C;

[0029] Figure 5 This is the enlarged structural diagram of point D;

[0030] Figure 6 This is the enlarged structural diagram of location E;

[0031] Figure 7 This is the enlarged structural diagram at G;

[0032] Figure 8 This is a partial cross-sectional view of FF.

[0033] In the figure: 1, outer sleeve at the driving machine end; 2, straight-through pressure-injected oil cup; 3, sealing cover; 4, inner sleeve connected spline shaft; 5, inner sleeve; 6, large sealing ring; 7, retaining ring; 8, drum roller; 9, sealing cover; 10, retaining ring; 11, small sealing ring; 12, baffle; 13, end cover; 14, outer sleeve at the driven machine end; 15, large cylindrical helical compression spring; 16, small cylindrical helical compression spring; 17, marked blind hole. DETAILED DESCRIPTION

[0034] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0035] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn to scale.

[0036] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0037] See also Figure 1-Figure 8 The utility model provides a technical solution: it includes a driving machine end outer sleeve 1 and a driven machine end outer sleeve 14, an inner sleeve connected spline shaft 4 is arranged between the driving machine end outer sleeve 1 and the driven machine end outer sleeve 14, the head of the inner sleeve connected spline shaft 4 is sleeved with an inner sleeve 5 and arranged in the driving machine end outer sleeve 1, and the rear of the inner sleeve 5 is limited on the driving machine end outer sleeve 1 by a sealing cover 9, and the rear of the inner sleeve connected spline shaft 4 is limited in the driven machine end outer sleeve 14 by an end cover 13, and drum rollers 8 are distributed between the inner sleeve 5 and the driving machine end outer sleeve 1, and between the rear of the inner sleeve connected spline shaft 4 and the driven machine end outer sleeve 14.

[0038] The interior of the driving machine end outer sleeve 1 and the interior of the driven machine end outer sleeve 14 are respectively designed and processed into multiple inner arc grooves; the exterior of the large end behind the inner sleeve connected spline shaft 4 is designed and processed into multiple outer arc grooves, and the exterior of the small end of the inner sleeve connected spline shaft 4 is designed and processed into an external spline; the exterior of the inner sleeve 5 is designed and processed into multiple outer arc grooves, and the interior of the inner sleeve 5 is designed and processed into an internal spline.

[0039] The inner sleeve spline shaft 4 and the inner sleeve 5 are connected by a spline pair to achieve axial sliding and adjustment; a large cylindrical helical compression spring 15 is provided in the middle of the rear of the spline shaft 4, and transparent oil circuits are designed in the front and rear of the inner sleeve spline shaft 4. The inner sleeve 5 is designed with a circumferential oil channel and is provided with two straight-through pressure-injection oil cups 2 to achieve lubrication of the entire transmission chain, reduce losses, and improve transmission torque efficiency. A sealing cover 3 is provided in the middle of the front end of the inner sleeve 5, and the small end of the inner sleeve spline shaft 4 and the inner sleeve 5 are reasonably matched through the spline pair, the sealing cover 3, and the straight-through pressure-injection oil cup 2 for limiting, sealing, and oiling, thereby achieving a dust-free, freely connected working environment.

[0040] The drum roller 8 adopts reasonable clearance fit to realize the connection between the driving machine end outer sleeve 1 and the inner sleeve 5 and the connection between the rear of the inner sleeve spline shaft 4 and the driven machine end outer sleeve 14, effectively forming a torque transmission chain with reasonable clearance fit by the driving machine end outer sleeve 1, the drum ball column 8, the inner sleeve 5, the small end of the inner sleeve spline shaft 4, the large end of the inner sleeve spline shaft 4, the drum ball column 8, the driven machine end outer sleeve 14 and the auxiliary accessories.

[0041] The front inner ring of the active machine end jacket 1 and the inner ring of the sealing cover 9 are both provided with a large sealing ring 6, the outside of the large sealing ring 6 of the active machine end jacket 1 is provided with a retaining ring 7, and the rear of the large sealing ring 6 in the sealing cover 9 is provided with a retaining ring 10. The active machine end jacket 1 uses a drum-shaped ball column 8, a retaining ring 7, a sealing cover 9, a retaining ring 10, a large sealing ring 6, a straight-through pressure injection oil cup 2 and an inner sleeve 5 to reasonably cooperate and limit, seal and inject oil, so as to achieve a dust-free and freely connected working environment.

[0042] The inner ring of the end cover 13 is provided with a small sealing ring 11, and the outside of the small sealing ring 11 is provided with a baffle 12. A small cylindrical helical compression spring 16 is distributed around the end cover 13 and the inner sleeve spline shaft 4. The driven motor end outer sleeve 14 uses a drum-shaped ball column 8, an end cover 13, a baffle 12, a small sealing ring 11, a large cylindrical helical compression spring 15, and a small cylindrical helical compression spring 16 to reasonably cooperate with the large end of the inner sleeve spline shaft 4 and perform limiting, sealing and oiling to achieve a dust-free free connection working environment.

[0043] The driving machine end outer sleeve 1, the inner sleeve connected spline shaft 4, and the driven machine end outer sleeve 14 are provided with marked blind holes 17, which can realize accurate angular positioning and assembly, and ensure the angular displacement accuracy of the driving machine end and the driven machine end.

[0044] The exterior of the driving machine end housing 1 and the exterior of the driven machine end housing 14 can be designed as a standard or non-standard installation interface, or the installation interface can be designed according to user requirements.

[0045] When using the utility model, it is sufficient to match and dock according to the input and output ends of the power. The installation operation is an entry-level operation for those skilled in the art. The patent mainly expresses the structural aspects, which can be realized by manufacturing according to the drawings, and the fixing methods used between the components are all existing technologies, including but not limited to threaded connections or welding. The screws, bolts and other fixing components in the figure are not marked with serial numbers. In order to prevent the bolts from loosening, limit wires or steel wires are added as shown in the attached figure. Figure 7 shown.

[0046] 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. A new type of inner sleeve spline axial sliding universal coupling at both ends, characterized by: The invention comprises a driving machine end outer sleeve (1) and a driven machine end outer sleeve (14), wherein an inner sleeve connected spline shaft (4) is arranged between the driving machine end outer sleeve (1) and the driven machine end outer sleeve (14), wherein the head of the inner sleeve connected spline shaft (4) is sleeved with an inner sleeve (5) and arranged in the driving machine end outer sleeve (1), and the rear of the inner sleeve (5) is limited on the driving machine end outer sleeve (1) by a sealing cover (9), and the rear of the inner sleeve connected spline shaft (4) is limited in the driven machine end outer sleeve (14) by an end cover (13), and drum-shaped rollers (8) are distributed between the inner sleeve (5) and the driving machine end outer sleeve (1), and between the rear of the inner sleeve connected spline shaft (4) and the driven machine end outer sleeve (14).

2. According to claim 1, a novel inner sleeve connected spline axial sliding universal coupling at both ends, characterized in that: The interior of the driving machine end outer sleeve (1) and the interior of the driven machine end outer sleeve (14) are respectively designed and processed into inner arc grooves; the exterior of the rear large end of the inner sleeve connected spline shaft (4) is designed and processed into an outer arc groove, and the exterior of the small end of the inner sleeve connected spline shaft (4) is designed and processed into an outer spline; the exterior of the inner sleeve (5) is designed and processed into an outer arc groove, and the interior of the inner sleeve (5) is designed and processed into an inner spline.

3. According to claim 2, a novel inner sleeve connected spline axial sliding universal coupling at both ends, characterized in that: The inner sleeve-connected spline shaft (4) and the inner sleeve (5) are connected via a spline pair to achieve axial sliding and adjustable movement; a large cylindrical helical compression spring (15) is provided in the middle of the rear of the spline shaft (4); transparent oil passages are designed at the front and rear of the inner sleeve-connected spline shaft (4); the inner sleeve (5) is designed with a circumferential oil passage and is provided with two straight-through pressure-injected oil cups (2); and a sealing cover (3) is provided in the middle of the front end of the inner sleeve (5).

4. According to claim 1, a novel inner sleeve connected spline axial sliding universal coupling at both ends, characterized in that: The drum-shaped roller (8) adopts a reasonable clearance fit to achieve the connection between the outer sleeve (1) and the inner sleeve (5) at the driving machine end, and the connection between the rear of the inner sleeve-connected spline shaft (4) and the outer sleeve (14) at the driven machine end.

5. According to claim 1, a novel inner sleeve connected spline axial sliding universal coupling at both ends, characterized in that: The front inner ring of the driving machine end housing (1) and the inner ring of the sealing cover (9) are both provided with a large sealing ring (6); a retaining ring (7) is provided outside the large sealing ring (6) of the driving machine end housing (1); and a retaining ring (10) is provided behind the large sealing ring (6) in the sealing cover (9).

6. According to claim 1, a novel two-end universal coupling with inner sleeve connected spline axial sliding, characterized in that: The inner ring of the end cover (13) is provided with a small sealing ring (11), the outer part of the small sealing ring (11) is provided with a baffle (12), and a small cylindrical helical compression spring (16) is distributed around the end cover (13) and the inner sleeve spline shaft (4).

7. The inner sleeve connected spline axial sliding type novel two-end universal coupling according to claim 1, characterized in that: The driving machine end outer sleeve (1), the inner sleeve connected spline shaft (4), and the driven machine end outer sleeve (14) are provided with marked blind holes (17), so that accurate angle positioning and assembly can be achieved.

8. The inner sleeve connected spline axial sliding type novel two-end universal coupling according to claim 1, characterized in that: The exterior of the driving machine end housing (1) and the exterior of the driven machine end housing (14) can be designed as a standard or non-standard installation interface, or the installation interface can be designed according to user requirements.

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