Universal coupling for heavy-load industry
By designing a combined structure of connecting plate, flange plate and spherical bearing, the design challenge of high-torque and large-angle couplings in the heavy-duty industry has been solved, realizing a coupling with large-angle compensation, lightweight and low cost, suitable for the heavy-duty industry.
Patent Information
- Application Number
- CN202520619317.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing couplings in the heavy-duty industry cannot meet the requirements of high torque and large swing angle, and suffer from problems such as stress concentration, low machining accuracy and high cost.
A universal coupling for heavy-duty industries has been designed, which adopts a combination structure of components such as connecting plates, flange plates, spherical bearings and bolts. Large-angle compensation is achieved through the spherical contact of the spherical bearings, and a stable connection is achieved through the cooperation of bolts and fasteners.
It achieves high torque load capacity, meets a large compensation angle, is lightweight, easy to install and low in cost, and is suitable for heavy-duty industries.
Smart Images
Figure CN223708340U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coupling technology, and in particular relates to a universal coupling for heavy-duty industries. Background Technology
[0002] In heavy-duty industries, gear couplings or universal joints are generally selected. Gear couplings are characterized by their high torque capacity, but the allowable sway angle is generally no more than 2°, and the torque-to-mass ratio is low, resulting in higher costs. Universal joints are more widely used in heavy-duty applications, and their characteristics allow for sway angles of 10° to 15°. Their compensation capability is stronger than that of gear couplings. However, due to the structure of the universal joint itself, stress concentration at the root of the universal joint is unavoidable. Furthermore, the large-sized universal joints result in lower machining accuracy, so the upper limit of the universal joint bearing's load capacity is between 20 and 30 MNm. Considering the characteristics of both gear couplings and universal joints, it is impossible to meet the requirements of high torque and large sway angle. Especially in the wind power testing industry, the design and selection of couplings with high torque and large sway angle greatly complicates the testing of the entire machine.
[0003] Therefore, it is necessary to provide a new type of universal coupling for heavy-duty industries that can meet torque requirements of over 30MNm, accommodate large compensation angles, and features a lightweight design that facilitates on-site installation and transportation while being cost-effective. Utility Model Content
[0004] The technical problem solved by this utility model is to provide a universal coupling for heavy-duty industries that meets the requirements of heavy torque bearing and large compensation angle, and has a lightweight design, convenient on-site installation and transportation, and low cost.
[0005] To solve the above-mentioned technical problems, the universal coupling for heavy-duty industries provided by this utility model includes: a connecting plate, a flange plate 1 on one side of the connecting plate, a flange plate 2 on the other side of the connecting plate, multiple mounting grooves on both sides of the connecting plate, multiple connecting mechanisms on both sides of the connecting plate, each connecting mechanism including an annular fixing member 1 disposed in the mounting groove, multiple through holes 1 on the annular fixing member 1, multiple threaded holes 1 on the connecting plate, multiple bolts 1 disposed in the multiple through holes 1, one end of each of the multiple bolts 1 passing through the multiple through holes 1 and screwed into the multiple threaded holes 1, and a flange shaft fixedly installed on the inner wall of the annular fixing member 1.
[0006] As a further embodiment of this utility model, the flange plate one and the flange plate two are respectively provided with a plurality of mounting through holes, the other end of the flange shaft extends into the corresponding mounting through hole, and a spherical bearing is fixedly sleeved on the flange shaft.
[0007] As a further embodiment of this utility model, an annular fixing member 2 is provided in the mounting through hole, and multiple through holes 2 are respectively opened on the annular fixing member 2. Multiple threaded holes 2 are respectively opened on the flange plate 2. Multiple bolts 2 are respectively provided in the multiple through holes 2, and one end of the multiple bolts 2 passes through the multiple through holes 2 and is screwed into the multiple threaded holes 2 respectively.
[0008] As a further embodiment of this utility model, the second annular fixing member is fixedly connected to the outer ring of the spherical bearing.
[0009] As a further embodiment of this utility model, a baffle is provided on one side of the flange shaft, and a plurality of through holes are provided on the baffle. A plurality of threaded holes are provided on one side of the flange shaft, and a plurality of bolts are respectively provided in the plurality of through holes. One end of the plurality of bolts passes through the plurality of through holes and is screwed into the threaded holes.
[0010] As a further embodiment of this utility model, if the load-bearing capacity is insufficient, the connecting plate and the flange shaft can be designed as an integral unit, referred to as the adapter plate shaft.
[0011] Compared with related technologies, the universal coupling for heavy-duty industries provided by this utility model has the following advantages:
[0012] 1. It can meet a large compensation angle, and the product has a lightweight design, which makes it convenient for on-site installation and transportation, and has low cost. Attached Figure Description
[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0014] Figure 1 This is a cross-sectional structural schematic diagram of the universal coupling for heavy-duty industries according to this utility model;
[0015] Figure 2 This is a schematic diagram of the deflection section structure of the universal coupling for heavy-duty industries according to this utility model.
[0016] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;
[0017] Figure 4 This is a schematic diagram of the adapter shaft part of the universal coupling for heavy-duty industries according to this utility model.
[0018] In the diagram: 1. Connecting plate; 2. Flange plate one; 3. Flange plate two; 4. Annular fastener one; 5. Bolt one; 6. Flange shaft; 7. Spherical bearing; 8. Annular fastener two; 9. Bolt two; 10. Baffle; 11. Bolt three; 12. Adapter shaft. Detailed Implementation
[0019] Please refer to the following: Figures 1 to 4 ,in, Figure 1 This is a cross-sectional structural schematic diagram of the universal coupling for heavy-duty industries according to this utility model; Figure 2 This is a schematic diagram of the deflection section structure of the universal coupling for heavy-duty industries according to this utility model. Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the adapter shaft portion of the universal coupling for heavy-duty industries according to this utility model. The universal coupling for heavy-duty industries includes: a connecting plate 1, a flange plate 2 on one side of the connecting plate 1, a flange plate 3 on the other side of the connecting plate 1, multiple mounting grooves on both sides of the connecting plate 1, and multiple connecting mechanisms on both sides of the connecting plate 1. Each connecting mechanism includes an annular fixing member 4 disposed in the mounting groove, multiple through holes 4, and multiple threaded holes 1 on the connecting plate 1. Multiple bolts 5 are disposed in the multiple through holes 1, with one end of each bolt 5 passing through the multiple through holes 1 and screwed into the multiple threaded holes 1. A flange shaft 6 is fixedly installed on the inner wall of the annular fixing member 4.
[0020] The flange plate 2 and flange plate 3 are respectively provided with multiple mounting through holes, and the other end of the flange shaft 6 extends into the corresponding mounting through hole. A spherical bearing 7 is fixedly sleeved on the flange shaft 6.
[0021] The connecting plate 1 is connected to flange plate 2 and flange plate 3 through the cooperation of flange shaft 6 and spherical bearing 7.
[0022] The mounting through hole is provided with an annular fastener 2 8, and the annular fastener 2 8 is provided with multiple through holes 2. The flange plate 2 3 is provided with multiple threaded holes 2. Multiple bolts 2 9 are provided in the multiple through holes 2. One end of the multiple bolts 2 9 passes through the multiple through holes 2 and is screwed into the multiple threaded holes 2 respectively.
[0023] The annular fastener 8 is fixedly connected to the outer ring of the spherical bearing 7.
[0024] The spherical bearing 7 is fixedly connected to the flange plate 3 by the cooperation of the annular fastener 28 and the bolt 29.
[0025] A baffle 10 is provided on one side of the flange shaft 6. A plurality of through holes 3 are provided on the baffle 10. A plurality of threaded holes 3 are provided on one side of the flange shaft 6. A plurality of bolts 3 11 are provided in the plurality of through holes 3 respectively. One end of the plurality of bolts 3 11 passes through the plurality of through holes 3 and is screwed into the threaded holes 3.
[0026] The cooperation between the baffle 10 and the threaded bolt 11 prevents the flange shaft 6 from disengaging from the spherical bearing 7 and facilitates positioning.
[0027] If the load-bearing capacity is insufficient, the connecting plate 1 and the flange shaft 6 can be designed as a single unit, called the adapter shaft 12.
[0028] The working principle of the universal coupling for heavy-duty industries provided by this utility model is as follows:
[0029] First step: The outer ring of the spherical plain bearing 7 is mounted on the flange via an annular fastener 8, and the inner ring is mounted on the flange shaft 6. The inner ring and the outer ring generate relative displacement through spherical contact, thereby satisfying the angle compensation of the coupling. The flange shaft 6 is mounted and fixed to both sides of the connecting plate 1. The spherical plain bearing 7 allows for a swing angle θ, enabling the rotation of the connecting plate 1, thereby allowing the flange plate 2 and flange plate 3 to generate a swing angle, satisfying the angle compensation characteristics of the coupling. The spherical plain bearing 7 can be added as needed. If there are two or more, they are all centrally symmetrically distributed. All mounting through holes must be on the same straight line.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A universal coupling for heavy duty industries, characterized by, The utility model provides a flange plate and flange shaft connection structure, including: the connecting plate, one side of the connecting plate is equipped with flange plate one, the other side of the connecting plate is equipped with flange plate two, the both sides of the connecting plate are equipped with a plurality of installation slot respectively, the both sides of the connecting plate are equipped with a plurality of connecting mechanism respectively, the connecting mechanism includes the annular fixed part one of setting in the installation slot, a plurality of through -hole one is set up on the annular fixed part one, a plurality of threaded hole one is set up on the connecting plate, a plurality of bolt one is respectively equipped in a plurality of through -hole one, and the one end of a plurality of bolt one is respectively passed through a plurality of through -hole one and is rotated with a plurality of threaded hole one, the inner wall of annular fixed part one is fixedly installed with flange shaft.
2. The universal joint for heavy duty industries as claimed in claim 1 wherein: A plurality of installation through -hole is set up on the flange plate one and the flange plate two respectively, the other end of the flange shaft extends to the corresponding installation through -hole, and the flange shaft is fixedly provided with the joint bearing.
3. The universal joint for heavy duty industries as claimed in claim 2 wherein: The installation through -hole is equipped with annular fixed part two, a plurality of through -hole two is set up on the annular fixed part two respectively, a plurality of threaded hole two is set up on the flange plate two respectively, a plurality of bolt two is respectively equipped in a plurality of through -hole two, and the one end of a plurality of bolt two is respectively passed through a plurality of through -hole two and is respectively rotated with a plurality of threaded hole two.
4. The universal joint for heavy duty industries as set forth in claim 3, wherein: The annular fixed part two is fixedly connected with the outer ring of joint bearing.
5. The universal joint for heavy duty industries as set forth in claim 3, wherein: One side of the flange shaft is equipped with the baffle, a plurality of through -hole three is set up on the baffle, a plurality of threaded hole three is set up on one side of the flange shaft, a plurality of bolt three is respectively equipped in a plurality of through -hole three, and the one end of a plurality of bolt three is respectively passed through a plurality of through -hole three and is rotated with threaded hole three.
6. The universal joint for heavy duty industries as set forth in claim 5, wherein: If the bearing capacity is insufficient, the connecting plate and the flange shaft can be designed as an integral type, called adapter disc shaft.