An axially limiting drum-shaped gear coupling and its installation and adjustment method

Abstract

An axially limiting drum-tooth coupling and its installation and adjustment method are disclosed. The drum-tooth coupling includes an axial limiting assembly, comprising an active end limiting mechanism disposed on both sides of the transmission component and capable of elastically abutting against the active end external gear sleeve, and a driven end limiting mechanism capable of rigidly abutting against the driven end external gear sleeve. The active end limiting mechanism includes an active end thrust block axially slidably disposed within a cavity of the transmission component, and an elastic element providing axial elastic support for the active end thrust block. This coupling effectively limits the axial displacement of the motor shaft through the axial limiting assembly, while retaining the original high torque transmission capacity and deviation compensation characteristics of the drum-tooth coupling. The installation and adjustment method of this coupling is also simple and efficient, enabling quick and accurate installation and axial limiting adjustment, greatly improving installation efficiency and reliability.

Description

Technical Field

[0001] This invention relates to the field of coupling technology, specifically to an axially limiting drum-shaped gear coupling and its installation and adjustment method. Background Technology

[0002] As a highly efficient and reliable mechanical transmission component, the drum-tooth coupling is widely used in the connection between motors and equipment. Its core advantage lies in its ability to transmit huge torques, while the drum-tooth design enables significant radial, axial, and angular misalignment compensation, thereby reducing vibration and noise in the transmission system and improving transmission efficiency and service life.

[0003] In small motor systems, the use of gear couplings is relatively simple due to the presence of rolling bearings within the motor itself, which inherently possess a certain axial limiting capability. No additional axial limiting measures are required. However, the situation is quite different in large motor systems. Large motors often employ sliding bearings. This bearing design allows the motor shaft to move axially within a certain range to accommodate adaptive alignment of the magnetic centerline during start-up and shutdown, as well as actual operating conditions such as thermal expansion and installation errors. However, if this axial movement exceeds the permissible range, it can cause severe damage to the motor shaft shoulder or the end face of the sliding bearing, and may even lead to the failure of the entire transmission system.

[0004] Currently, in the connection between large motors and equipment, while gear couplings can transmit torque and compensate for misalignment, they lack an effective axial limiting mechanism. When the motor shaft undergoes axial displacement, the coupling cannot limit this displacement, causing the motor shaft or bearings to bear excessive axial force, leading to damage. Furthermore, existing gear couplings often require complex tools and precise operations during installation and adjustment, resulting in low installation efficiency and difficulty in ensuring accurate axial limiting.

[0005] To address the aforementioned issues, it is necessary to propose an axially limiting drum-shaped gear coupling and its installation and adjustment method. Summary of the Invention

[0006] The purpose of this invention is to propose an axially limiting drum-shaped gear coupling and its installation and adjustment method. This coupling effectively limits the axial displacement of the motor shaft through an axial limiting component, while retaining the original high torque transmission capacity and deviation compensation characteristics of the drum-shaped gear coupling. The installation and adjustment method of this coupling is also simple and efficient, and can quickly and accurately complete the installation and axial limiting adjustment of the coupling, greatly improving installation efficiency and reliability.

[0007] The technical solution adopted in this invention is: an axially limiting drum-shaped gear coupling, the drum-shaped gear coupling including a driving end internal gear ring, a driven end internal gear ring, a driving end external gear sleeve slidably installed in the driving end internal gear ring, a driven end external gear sleeve slidably installed in the driven end internal gear ring, and a transmission component fixed between the driving end internal gear ring and the driven end internal gear ring, the driving end external gear sleeve being used to connect a motor shaft capable of positive or negative axial displacement, and the opposite ends of the driving end internal gear ring and the driven end internal gear ring being respectively provided with anti-detachment seals to prevent the driving end external gear sleeve and the driven end external gear sleeve from axially slipping off; The drum-shaped gear coupling also includes an axial limiting assembly, which includes an active end limiting mechanism disposed on both sides of the transmission member and capable of elastically abutting against the active end external gear sleeve, and a driven end limiting mechanism capable of rigidly abutting against the driven end external gear sleeve. The active end limiting mechanism includes an active end thrust block that can be axially slidably disposed within the receiving cavity of the transmission member, and an elastic member for providing axial elastic support for the active end thrust block; When the positive axial displacement of the motor shaft is within the allowable axial displacement of the coupling, the elastic element is configured to allow the active end thrust block to move axially with the active end internal gear ring; when the positive axial displacement of the motor shaft exceeds the allowable axial displacement of the coupling, the active end thrust block rigidly abuts against the end wall of the accommodating cavity to limit further positive axial displacement. When the amount of the reverse axial displacement of the motor shaft is within the allowable axial displacement of the coupling, the external gear sleeve at the driving end slides within the stroke range of the internal gear ring at the driving end; when the amount of the reverse axial displacement of the motor shaft exceeds the allowable axial displacement of the coupling, the two anti-disengagement seals can rigidly support the external gear sleeve at the driving end and the external gear sleeve at the driven end respectively, so as to limit further negative axial displacement.

[0008] As a preferred embodiment, each anti-detachment seal includes a through cover, which is fixed to the inner gear ring of the driving end or the inner gear ring of the driven end by fasteners. A retaining ring is provided between the through cover and the tooth root of the outer gear sleeve of the driving end or the outer gear sleeve of the driven end. The radial gap between the through cover and the outer gear sleeve of the driving end or the outer gear sleeve of the driven end is sealed by the seal.

[0009] As a preferred embodiment, the driven end limiting mechanism is a driven end pressure plate fixed to the transmission member.

[0010] As a preferred embodiment, the driven end external gear bushing is fixed with a driven end baffle and a driven end thrust block, and the driven end thrust block and the driven end pressure plate form a spherical contact.

[0011] As a preferred embodiment, the accommodating cavity is formed between the active end thrust block pressure plate and the internal limiting plate of the transmission shaft, and the active end thrust block pressure plate and the internal limiting plate of the transmission shaft are connected to the transmission component by fasteners.

[0012] As a preferred embodiment, the active end thrust block has an annular protrusion in the middle, and the elastic element is sleeved on the active end thrust block on the side of the annular protrusion away from the active end external gear sleeve; in the initial state of the elastic element, there is an axial gap between the active end thrust block and the end wall of the accommodating cavity.

[0013] As a preferred embodiment, the end of the active end thrust block forms a spherical contact with the end of the active end external gear bushing.

[0014] As a preferred embodiment, it includes an outer shim set and an inner shim set for adjusting the allowable axial displacement; The outer gasket assembly is disposed between the transmission component and the internal gear ring of the driving end; The inner gasket assembly is disposed between the active end outer gear bushing and the active end baffle.

[0015] As a preferred embodiment, the retaining ring forms a spherical contact with the root of the corresponding external gear sleeve.

[0016] An installation and adjustment method for an axially limiting drum-shaped gear coupling, the installation and adjustment method comprising the following steps: The relative position of the magnetic center line of the motor in non-working and working states is measured to obtain the actual axial offset of the motor and confirm that it is within the allowable range. After assembling the coupling body: by inserting an inner shim set between the external gear bushing of the active end and the active end baffle, the gap between the active end thrust block and the end wall of the accommodating cavity in the initial state of the elastic element is the positive allowable axial displacement. By removing the outer gasket set between the transmission component and the driving end external gear sleeve, the sum of the axial clearances between the two anti-disengagement seals and the corresponding driving end external gear sleeves and driven end external gear sleeves at the tooth root is the negative allowable axial displacement, and the positive allowable axial displacement is equal to the negative allowable axial displacement.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The axial limiting drum gear coupling disclosed in this invention adds an axial limiting component inside a general drum gear coupling, sets an allowable axial offset, and when the motor shaft displacement exceeds the set axial offset, the internal limiting mechanism of the coupling restricts further axial movement of the motor shaft, thus protecting the motor shaft and bearings.

[0018] 2. The installation and adjustment method for axially limiting drum-shaped gear couplings disclosed in this invention can quickly and accurately complete the installation and axial limiting adjustment of the couplings, greatly improving installation efficiency and reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall sectional view of the axially limiting drum-shaped gear coupling of the present invention; Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0021] Reference numerals in the attached diagram: 1. External gear sleeve of the driving end; 2. Pressure plate; 3. Bolt 1; 4. Washer; 5. Sealing ring; 6. Through cover; 7. Bolt 2; 8. Internal gear ring of the driving end; 9. Bolt 3; 10. Washer; 11. Nut; 12. Drive shaft; 13. Internal gear ring of the driven end; 14. External gear sleeve of the driven end; 15. Driven end retaining ring; 16. Driven end thrust block; 17. Driven end baffle; 18. Driven end pressure plate; 19. Internal limiting plate of the drive shaft; 20. Thrust block of the driving end; 21. Disc spring; 22. Pressure plate of the thrust block of the driving end; 23. Screw; 24. Baffle of the driving end; 25. Thrust ring of the driving end; 26. Outer washer group; 27. Inner washer group. Detailed Implementation

[0022] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0023] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," etc., used in the specification and claims of this patent application do not express a limitation on quantity, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising," "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0024] To more clearly describe this axially limiting drum-shaped gear coupling and its installation and adjustment method, see attached... Figure 1-2 Description of the embodiment: like Figure 1-2 As shown, the drum-shaped gear coupling includes an internal gear ring 8 at the driving end, an internal gear ring 13 at the driven end, an external gear sleeve 1 at the driving end slidably installed in the internal gear ring 8 at the driving end, an external gear sleeve 14 at the driven end slidably installed in the internal gear ring 13 at the driven end, and a transmission shaft 12 fixed between the internal gear ring 8 at the driving end and the internal gear ring 13 at the driven end. The external gear sleeve 1 at the driving end is used to connect a motor shaft that can be displaced in the positive or negative axial direction. The opposite ends of the internal gear ring 8 at the driving end and the internal gear ring 13 at the driven end are respectively provided with anti-slip seals to prevent the external gear sleeve 1 at the driving end and the external gear sleeve 14 at the driven end from axially slipping out. This invention discloses an axially limiting drum-shaped gear coupling, which further includes an axial limiting component. The axial limiting component realizes axial limiting and protection of the motor shaft. The axial limiting component includes an active end limiting mechanism disposed on both sides of the transmission shaft 12 of the transmission component and capable of elastically abutting against the active end external gear sleeve 1, and a driven end limiting mechanism capable of rigidly abutting against the driven end external gear sleeve 14. The active end limiting mechanism includes an active end thrust block 20 that can be axially slidably disposed in the accommodating cavity of the transmission shaft 12 of the transmission member, and an elastic disc spring 21 for providing axial elastic support for the active end thrust block 20. When the positive axial displacement of the motor shaft is within the allowable axial displacement of the coupling, the elastic disc spring 21 is configured to allow the driving end thrust block 20 to move axially with the driving end internal gear ring 8; when the positive axial displacement of the motor shaft exceeds the allowable axial displacement of the coupling, the driving end thrust block 20 rigidly abuts against the end wall of the accommodating cavity to limit further positive axial displacement. When the amount of the reverse axial displacement of the motor shaft is within the allowable axial displacement of the coupling, the driving end external gear sleeve 1 slides within the stroke range of the driving end internal gear ring 8; when the amount of the reverse axial displacement of the motor shaft exceeds the allowable axial displacement of the coupling, the two anti-disengagement seals can rigidly support the driving end external gear sleeve 1 and the driven end external gear sleeve 14 respectively to limit further negative axial displacement.

[0025] In one specific embodiment, each anti-detachment seal includes a through cover 6, which is fixed to the active end internal gear ring 8 or the driven end internal gear ring 13 by bolt 2 7 (fastener). One through cover 6 is provided with an active end retaining ring 25 between the tooth root of the active end external gear sleeve 1 and the other through cover 6 is provided with a driven end retaining ring 15 between the tooth root of the driven end external gear sleeve 14. The radial gap between the through cover 6 and the active end external gear sleeve 1 or the driven end external gear sleeve 14 is sealed by the seal. The sealing components include a pressure plate 2, a bolt 3, a gasket 4, and a sealing ring 5. A sealing ring mounting groove is provided on the cover 6, and the sealing ring 5 is set in the sealing ring mounting groove. The outer side of the sealing ring 5 is positioned by the pressure plate 2, and the pressure plate 2 is fastened to the cover 6 by the bolt 3 and the gasket 4.

[0026] In one specific embodiment, the driven end limiting mechanism is a driven end pressure plate 18 fixed to the transmission component. The driven end external gear bushing 14 is fixed with a driven end baffle 17 and a driven end thrust block 16. The driven end thrust block 16 and the driven end pressure plate 18 form a spherical contact, which is beneficial for angular displacement compensation between the driven end external gear bushing 14 and the transmission component.

[0027] In one specific embodiment, the transmission component includes a hollow transmission shaft 12. The inside of the transmission shaft 12 is fixed with a drive end thrust block pressure plate 22 and a transmission shaft internal limiting plate 19 by screws 23. A receiving cavity is formed between the drive end thrust block pressure plate 22 and the transmission shaft internal limiting plate 19. The receiving cavity is convex in shape. The end wall of the receiving cavity is on the transmission shaft internal limiting plate 19. The inner diameter of the receiving cavity is small at the end closer to the drive end external gear sleeve 1 and large at the end farther away from the drive end external gear sleeve 1. The active end thrust block 20 has an annular protrusion in the middle. The elastic element 21 is sleeved on the active end thrust block 20 on the side of the annular protrusion away from the active end external gear sleeve 1. The elastic element 21 can be a disc spring. Both the annular protrusion and the elastic element 21 are located at the end of the accommodating cavity away from the active end external gear sleeve 1. By removing the screw 23, the active end thrust block pressure plate 22 and the internal limiting plate 19 of the transmission shaft can be separated, and then the active end thrust block 20 and the elastic element 21 can be taken out. In the initial state of the elastic element, there is an axial gap between the active end thrust block 20 and the end wall of the accommodating cavity. The end of the active end thrust block 20 forms a spherical contact with the end of the active end external gear bushing 1. This spherical contact is beneficial for angular displacement compensation between the active end external gear bushing 1 and the transmission component.

[0028] In one specific embodiment, the allowable axial displacement can be adjusted by setting an outer shim group 26 and an inner shim group 27 inside the axially limiting drum gear coupling; the drive shaft 12 and the driving end internal gear ring 8 are connected by a fastener consisting of a bolt 9, a washer 10, and a nut 11, and the outer shim group 26 is set between the drive shaft 12 and the driving end internal gear ring 8 in cooperation with the fastener; the end of the driving end external gear bushing 1 is connected to the driving end baffle 24 by a fastener, and the inner shim group 27 is set between the driving end external gear bushing 1 and the driving end baffle 24 in cooperation with the fastener.

[0029] In a specific embodiment, the retaining ring and the root of the corresponding external gear sleeve form a spherical contact. Specifically, the mating surfaces of the driving end retaining ring 25, the driven end retaining ring 15 and the corresponding external gear sleeve can be set as concave surfaces, and the root of the corresponding driving end external gear sleeve 1 and the driven end external gear sleeve 14 can be set as convex surfaces. This ensures that the coupling can achieve the axial limiting function without affecting the coupling's function of compensating for angular deviations.

[0030] The working process of the axial limiting drum gear coupling is as follows: the motor torque is transmitted sequentially through the driving end external gear sleeve 1, the driving end internal gear ring 8, the transmission shaft 12, the driven end internal gear ring 13, and the driven end external gear sleeve 14 to the driven end; when the motor shaft undergoes axial displacement (with the displacement from the driving end to the driven end as the positive direction), if the displacement direction of the motor shaft is positive, it will drive the driving end external gear sleeve 1 and the driving end baffle 24 to push the driving end thrust block 20 to the right to compress the disc spring 21. At this time, if the axial displacement is within the set value range, the motor shaft displacement will not be affected; if it exceeds the set value, the tail of the driving end thrust block 20 will be affected. The motor shaft is in contact with the internal limiting baffle 19 of the drive shaft 12, which restricts further axial displacement of the motor shaft. If the motor shaft displacement direction is negative, it will drive the active end external gear sleeve 1 and the active end baffle 24 to move to the left. If the axial displacement is within the set value range, the motor shaft displacement will not be affected. If it exceeds the set value, the active end external gear sleeve 1 will contact the active end retaining ring 25, which will drive the active end internal gear ring 8, the drive shaft 12, and the driven end internal gear ring 13 to move to the left. At this time, the driven end retaining ring 15 fixed inside the cover will contact the driven end external gear sleeve 14, which will restrict further axial displacement of the motor shaft.

[0031] This invention discloses an installation and adjustment method for an axially limiting drum-shaped gear coupling, the installation and adjustment method comprising the following steps: Step 1: Measure the axial offset 1) Install the motor on the foundation according to the instruction manual, and mark the relative position L1 of the magnetic center line at this time (relative to the selected reference position, and all subsequent measurements will be based on this position). 2) Start the motor, adjust the motor to the working state, calibrate the relative position L2 of the magnetic center line at this time, and use L2-L1 to obtain the actual axial offset L of the motor; 3) Compare the actual offset L of the motor with the allowable offset of the motor. L should be within the allowable offset range of the motor.

[0032] Step 2: Install and adjust the coupling 1) Place the cover 6, sealing ring 5, and pressure plate 2 on the shaft, and then install the external gear bushing (driving end external gear bushing 1 and driven end external gear bushing 14) on the shaft head. Install the adjusting shim set, driven end baffle 17, and driven end pressure plate 18 on the external gear bushing. 2) Measure the end face runout and radial runout of the shaft diameters at both ends. The measured values ​​should not exceed 0.2 mm. 3) After alignment, install the driving end inner gear sleeve 8, the driven end inner gear sleeve 13, the drive shaft 12, and the outer shim set 26; 4) Adjust the allowable axial displacement; Combination Figure 1 and Figure 2 As shown, in the initial state, the initial gap between the tail of the active end thrust block 20 and the internal limiting plate 19 of the drive shaft (that is, the gap between the active end thrust block 20 and the end wall of the accommodating cavity) is set to a0, the initial gap between the root of the active end external gear sleeve 1 and the active end retaining ring 25 is set to b0, and the gap between the root of the driven end external gear sleeve 14 and the driven end retaining ring 15 is 2mm (this gap is the axial gap from the anti-detachment seal to the root of the driven end external gear sleeve 14; the value of this gap is based on the allowable displacement of the motor shaft head by the domestic motor manufacturer, or it can be tested independently), ensuring that a0 = b0 + 2 in the initial state; according to the required allowable axial displacement n, insert the inner shim set 27, total With a thickness of a0-n, the gap between the tail of the active end thrust block 20 and the internal limiting plate 19 of the drive shaft is the positive allowable axial displacement n. Then, the outer gasket group 26 is pulled out, with a total thickness of b0-n. At this time, a=b+2=n, where a and b represent the adjusted gaps, so that the axial gap between the active end retaining ring 25 of the left anti-disengagement seal and the root of the active end external gear sleeve 1 + the axial gap between the driven end retaining ring 15 of the right anti-disengagement seal and the root of the driven end external gear sleeve 14 = the negative allowable axial displacement. Even if the negative allowable axial displacement of the coupling reaches the required value n, the positive allowable axial displacement is finally equal to the negative allowable axial displacement.

[0033] The parts not described in detail in the above embodiments are existing technologies.

[0034] It should be noted that although the present invention has been described through the above embodiments, the present invention may have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. An axially limiting drum-shaped gear coupling, comprising an internal gear ring (8) at the driving end, an internal gear ring (13) at the driven end, an external gear sleeve (1) at the driving end slidably mounted in the internal gear ring (8), an external gear sleeve (14) at the driven end slidably mounted in the internal gear ring (13) at the driven end, and a transmission component fixed between the internal gear ring (8) at the driving end and the internal gear ring (13) at the driven end, wherein the external gear sleeve (1) at the driving end is used to connect a motor shaft capable of positive or negative axial displacement, and the opposite ends of the internal gear ring (8) at the driving end and the internal gear ring (13) at the driven end are respectively provided with anti-slip seals for preventing axial slippage of the external gear sleeve (1) at the driving end and the external gear sleeve (14) at the driven end; characterized in that: The drum-shaped gear coupling also includes an axial limiting component, which includes an active end limiting mechanism disposed on both sides of the transmission member and capable of elastically abutting against the active end external gear sleeve (1) and a driven end limiting mechanism capable of rigidly abutting against the driven end external gear sleeve (14). The active end limiting mechanism includes an active end thrust block (20) that can be axially slidably disposed in the receiving cavity of the transmission member and an elastic member (21) for providing axial elastic support for the active end thrust block (20). When the positive axial displacement of the motor shaft is within the allowable axial displacement of the coupling, the elastic element is configured to allow the active end thrust block (20) to move axially with the active end internal gear ring (8); when the positive axial displacement of the motor shaft exceeds the allowable axial displacement of the coupling, the active end thrust block (20) rigidly abuts against the end wall of the accommodating cavity to limit further positive axial displacement. When the amount of the reverse axial displacement of the motor shaft is within the allowable axial displacement of the coupling, the active end external gear sleeve (1) slides within the stroke range of the active end internal gear ring (8); when the amount of the reverse axial displacement of the motor shaft exceeds the allowable axial displacement of the coupling, the two anti-disengagement seals can rigidly support the active end external gear sleeve (1) and the driven end external gear sleeve (14) respectively to limit further negative axial displacement.

2. The axially limiting drum-shaped gear coupling according to claim 1, characterized in that: Each anti-detachment seal includes a through cover (6), which is fixed to the active end internal gear ring (8) or the driven end internal gear ring (13) by fasteners. A retaining ring is provided between the through cover (6) and the tooth root of the active end external gear sleeve (1) or the driven end external gear sleeve (14). The radial gap between the through cover (6) and the active end external gear sleeve (1) or the driven end external gear sleeve (14) is sealed by the seal.

3. The axially limiting drum-shaped gear coupling according to claim 1, characterized in that: The driven end limiting mechanism is a driven end pressure plate (18) fixed on the transmission component.

4. The axially limiting drum-shaped gear coupling according to claim 3, characterized in that: The driven end external gear bushing (14) is fixed with a driven end baffle (17) and a driven end thrust block (16), and the driven end thrust block (16) and the driven end pressure plate (18) form a spherical contact.

5. The axially limiting drum-shaped gear coupling according to claim 1, characterized in that: The accommodating cavity is formed between the active end thrust block pressure plate (22) and the internal limiting plate (19) of the transmission shaft. The active end thrust block pressure plate (22) and the internal limiting plate (19) of the transmission shaft are connected to the transmission component by fasteners.

6. The axially limiting drum-shaped gear coupling according to claim 1, characterized in that: The active end thrust block (20) has an annular protrusion in the middle, and the elastic element is sleeved on the active end thrust block (20) on the side of the annular protrusion away from the active end external gear sleeve (1); in the initial state of the elastic element, there is an axial gap between the active end thrust block (20) and the end wall of the accommodating cavity.

7. An axially limiting drum-shaped gear coupling according to claim 1, characterized in that: The end of the active end thrust block (20) forms a spherical contact with the end of the active end external gear bushing (1).

8. An axially limiting drum-shaped gear coupling according to claim 1, characterized in that: Includes an outer shim group (26) and an inner shim group (27) for adjusting the allowable axial displacement. The outer gasket group (26) is disposed between the transmission component and the driving end internal gear ring (8); The inner gasket group (27) is disposed between the active end outer gear bushing (1) and the active end baffle (24).

9. An axially limiting drum-shaped gear coupling according to claim 2, characterized in that: The retaining ring forms a spherical contact with the root of the corresponding external gear sleeve.

10. A method for installing and adjusting the axially limiting drum-shaped gear coupling according to any one of claims 1 to 9, characterized in that, The installation and adjustment method includes the following steps: The relative position of the magnetic center line of the motor in non-working and working states is measured to obtain the actual axial offset of the motor and confirm that it is within the allowable range. After assembling the coupling body: by inserting an inner gasket group (27) between the active end external gear bushing (1) and the active end baffle (24), the gap between the active end thrust block (20) and the end wall of the accommodating cavity in the initial state of the elastic element (21) is the positive allowable axial displacement. By removing the outer gasket group (26) between the transmission component and the active end external gear sleeve (1), the sum of the axial clearances between the two anti-detachment seals and the corresponding active end external gear sleeve (1) and driven end external gear sleeve (14) tooth roots is the negative allowable axial displacement, and the positive allowable axial displacement is equal to the negative allowable axial displacement.

Images