A new type of coupling and installation method

Abstract

The invention discloses a novel coupling and installation method, belonging to the technical field of automobile parts, which includes an output shaft arranged on a rotary transformer; a worm gear set including a worm gear and a worm gear connecting part, the worm gear and the worm gear connecting part are fixedly connected; the worm gear and the worm gear connecting part are both installed on the output shaft; the worm gear cover is located on one side of the worm gear connecting part; the worm connecting seat is located on the side of the worm gear away from the worm gear cover, and cooperates with the worm gear cover to clamp the worm gear to form a whole; the other end of the worm connecting seat is provided with an extension shaft; the worm is rotatably arranged in the worm connecting seat and meshes with the worm gear; the docking shaft is arranged on the side of the worm connecting seat away from the worm gear; the elastic coupling is located between the extension shaft and the docking shaft, and is used for connecting the extension shaft and the docking shaft. The invention controls the adjustment angle through the worm gear, the worm gear has a self-locking function, and the transmission ratio is relatively large, which can meet the possibility of fine-tuning the angle of the rotary transformer.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and in particular relates to a novel coupling and an installation method. Background Art

[0002] The coupling is a device installed between the rotary transformer and the docking fixed shaft. Its main function is to fix the output shaft on the rotary transformer and the docking shaft after adjusting the required angle on the rotary transformer, so that it will not rotate due to the vibration of the machine, thus ensuring the accuracy of the machine output angle.

[0003] The couplings installed on vehicles nowadays are all disposable connection devices, which cannot be adjusted after installation. Each time the required angle changes, they need to be removed and re-fixed and installed. In addition, the installation and debugging steps are complicated, which is very inconvenient to use. Summary of the invention

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A new coupling for connecting a rotary transformer and a mating shaft, comprising:

[0006] An output shaft, wherein the output shaft is arranged on the rotary transformer;

[0007] A worm gear assembly, the worm gear assembly comprising a worm gear and a worm gear connecting portion, the worm gear and the worm gear connecting portion are fixedly connected; the worm gear and the worm gear connecting portion are both mounted on the output shaft;

[0008] A worm gear cover plate, the worm gear cover plate being located at one side of the worm gear connecting portion;

[0009] A worm connecting seat, the worm connecting seat is located on a side of the worm wheel away from the worm wheel cover plate, and cooperates with the worm wheel cover plate to clamp the worm wheel to form a whole; the other end of the worm connecting seat is provided with a protruding shaft;

[0010] A worm, the worm is rotatably arranged in the worm connecting seat and meshes with the worm wheel; the docking shaft is arranged on a side of the worm connecting seat away from the worm wheel;

[0011] An elastic coupling is located between the extending shaft and the docking shaft and is used for connecting the extending shaft and the docking shaft. Furthermore, the worm connecting seat is fixedly connected to the worm wheel cover plate.

[0012] Furthermore, the worm wheel and the worm wheel connecting portion are integrally formed.

[0013] Furthermore, self-lubricating bearings are provided at both ends of the worm, a worm cover plate is provided on the outside of the worm, the worm cover plate is fixedly connected to the worm connecting seat, the self-lubricating bearing penetrates into the worm, and is installed between the worm cover plate and the worm connecting seat.

[0014] Furthermore, the output shaft is provided with an oblique cutout, and the worm gear connecting portion is provided with a docking groove corresponding to the oblique cutout.

[0015] A method for installing a novel coupling, using any of the novel couplings described above, the method comprising the following steps:

[0016] S1. Insert the elastic coupling onto the docking shaft and leave space for installation;

[0017] S2. Insert the worm gear cover onto the output shaft and move it toward the resolver side;

[0018] S3. Insert the worm gear assembly onto the output shaft and tighten it with a nut;

[0019] S4, insert the worm connecting seat into the worm wheel, insert the second fastening screw into the hole corresponding to the worm wheel connecting part, do not tighten the second fastening screw temporarily, connect the worm wheel cover plate and the worm connecting seat with the second connecting screw, do not tighten the second connecting screw temporarily;

[0020] S5. The self-lubricating bearing is inserted into the worm and installed in the worm connecting seat. The worm wheel is rotated and adjusted to a suitable meshing position with the worm;

[0021] S6. Install the worm cover plate, and fasten the worm cover plate and the worm connecting seat with a first connecting screw;

[0022] S7, move the elastic coupling to one side of the rotary transformer, dock it with the extended shaft on the worm connecting seat, insert the first fastening screw and the set screw into the corresponding holes and tighten them;

[0023] S8. Rotate the worm and fine-tune the value of the rotary encoder. After adjusting to the required value, tighten and fix the second fastening screw on the worm wheel and the second connecting screw on the worm connecting seat.

[0024] Beneficial effects:

[0025] The invention provides a novel coupling, which controls the adjustment angle by meshing a worm wheel with a worm, the worm wheel and the worm have a self-locking function, and a relatively large transmission ratio, which can meet the requirements of fine adjustment of the angle of the rotary transformer.

[0026] By designing the worm gear set into a structure with a clamping groove to connect and tighten it with the output shaft on the rotary transformer, using the oblique cut on the output shaft of the rotary transformer to make the docking groove on the worm gear set into a docking slope, and using the anti-loosening nut on the threaded connection of the output shaft of the rotary transformer, the locking force after the worm gear and the rotary transformer are connected will be greatly increased, and the stability of the structure will be greatly increased.

[0027] By docking the worm cover plate with the worm connecting seat, the worm gear can be controlled by tightening or loosening the second connecting screw on the basis of self-locking, thereby increasing the controllability of the structure. At the same time, the protruding shaft of the worm connecting seat and the docking shaft are fixed by an elastic coupling to ensure the stability of the entire structure.

[0028] The self-lubricating bearing sleeve is fixed to the worm connecting seat to ensure that the worm can rotate freely. At the same time, it can also detect whether the worm cover plate presses the worm wheel to death, so as to achieve the purpose of fixing the output shaft of the rotary transformer through the entire docking device.

[0029] When the output angle of the rotary transformer needs to be adjusted, it is only necessary to loosen the second connecting screw between the worm gear cover and the worm connecting seat, rotate the worm to drive the worm gear to rotate, and achieve the purpose of adjusting the output angle. This design is simple to install and easy to debug, and perfectly solves the problems of the existing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the front view of the novel coupling in the present invention;

[0031] Figure 2 It is a schematic top view of the novel coupling in the present invention;

[0032] Figure 3 It is a schematic diagram of a right side view of a novel coupling in the present invention;

[0033] Figure 4 For the present invention Figure 1 Middle AA section view;

[0034] Figure 5 For the present invention Figure 3 Middle BB cutaway diagram;

[0035] Figure 6 It is an overall schematic diagram of the novel coupling in the present invention;

[0036] Figure 7 It is a schematic diagram of a rotary transformer in a novel coupling of the present invention;

[0037] Figure 8 It is a schematic diagram of a worm gear assembly in a novel coupling of the present invention;

[0038] Fig. 9It is a schematic diagram of the worm connecting seat in the novel coupling of the present invention;

[0039] Fig.10 It is a schematic diagram of an elastic coupling in the novel coupling of the present invention;

[0040] Among them, 1. worm wheel; 2. worm; 3. self-lubricating bearing; 4. worm cover; 5. worm connecting seat; 6. worm wheel cover; 7. elastic coupling; 8. docking shaft; 9. set screw; 10. first fastening screw; 11. first connecting screw; 12. second fastening screw; 13. second connecting screw; 14. nut; 15. rotary transformer. DETAILED DESCRIPTION

[0041] Example 1

[0042] refer to Figure 1-10 , a new coupling for connecting a rotary transformer 15 and a docking shaft 8, comprising:

[0043] An output shaft, the output shaft is arranged on the rotary transformer 15, and an oblique cut is arranged on the output shaft;

[0044] The worm gear assembly includes a worm gear 1 and a worm gear connecting portion, the worm gear 1 and the worm gear connecting portion are fixedly connected, the worm gear 1 and the worm gear connecting portion are both installed on the output shaft, the worm gear connecting portion is provided with a docking groove corresponding to the oblique cutout, the worm gear connecting portion is provided with a second clamping groove, the second clamping groove is fastened by a second fastening screw 12, and the worm gear 1 is fastened by a nut 14;

[0045] Preferably, the worm wheel 1 and the worm wheel connecting portion are integrally formed.

[0046] Preferably, the nut 14 is a locking nut.

[0047] By designing the worm gear connection part to be a structure with a clamping groove to connect and tighten it with the output shaft of the rotary transformer 15, the oblique cut on the output shaft of the rotary transformer 15 is matched with the docking slope made of the docking groove of the worm gear connection part, and a locking nut is provided on the output shaft of the rotary transformer 15, the locking force after the worm gear 1 and the rotary transformer 15 are connected is greatly increased, and the stability of the structure is greatly increased.

[0048] A worm gear cover plate 6, which is located at one side of the worm gear connecting portion;

[0049] The worm connecting seat 5 is located on the side of the worm wheel 1 away from the worm wheel cover plate 6, and cooperates with the worm wheel cover plate 6 to clamp the worm wheel 1 to form a whole; the worm connecting seat 5 is fixedly connected to the worm wheel cover plate 6 by a second connecting screw 13, and a protruding shaft is provided at the other end of the worm connecting seat 5;

[0050] A worm 2, which is rotatably arranged in a worm connecting seat 5 and meshes with a worm wheel 1. Self-lubricating bearings 3 are arranged at both ends of the worm 2. A worm cover plate 4 is arranged on the outside of the worm 2. The self-lubricating bearing 3 penetrates into the worm 2 and is installed between the worm cover plate 4 and the worm connecting seat 5. The worm cover plate 4 is fixedly connected to the worm connecting seat 5 by a first connecting screw 11. A docking shaft 8 is arranged on a side of the worm connecting seat 5 away from the worm wheel 1.

[0051] The worm wheel 1 and the worm 2 have a self-locking function and a relatively large transmission ratio, which can meet the fine adjustment of the angle of the rotary transformer 15. They are fixed to the worm connecting seat 5 through the self-lubricating bearing 3, ensuring that the worm 2 can rotate freely while also detecting whether the worm wheel cover plate 6 presses the worm wheel 1 to death, thereby achieving the purpose of fixing the rotary transformer 15 axis of the entire docking device.

[0052] The elastic coupling 7 is located between the extending shaft and the docking shaft 8 and is used for connecting the extending shaft and the docking shaft 8. A first clamping groove is provided on the elastic coupling 7. The first clamping groove is clamped by a first fastening bolt 10 to thereby fasten the elastic coupling 7. The elastic coupling 7 and the docking shaft 8 are fastened by a set screw 9.

[0053] Example 2

[0054] This embodiment provides a method for installing a novel coupling, using a novel coupling provided in Embodiment 1, and the method comprises the following steps:

[0055] S1. Insert the elastic coupling onto the docking shaft and leave space for installation;

[0056] S2. Insert the worm gear cover onto the output shaft and move it toward the resolver side;

[0057] S3. Insert the worm gear assembly onto the output shaft and tighten it with a nut;

[0058] S4, insert the worm connecting seat into the worm wheel, insert the second fastening screw into the hole corresponding to the worm wheel connecting part, do not tighten the second fastening screw temporarily, connect the worm wheel cover plate and the worm connecting seat with the second connecting screw, do not tighten the second connecting screw temporarily;

[0059] S5. The self-lubricating bearing is inserted into the worm and installed in the worm connecting seat. The worm wheel is rotated and adjusted to a suitable meshing position with the worm;

[0060] S6. Install the worm cover plate, and fasten the worm cover plate and the worm connecting seat with a first connecting screw;

[0061] S7, move the elastic coupling to one side of the rotary transformer, dock it with the extended shaft on the worm connecting seat, insert the first fastening screw and the set screw into the corresponding holes and tighten them;

[0062] S8. Rotate the worm and fine-tune the value of the rotary encoder. After adjusting to the required value, tighten and fix the second fastening screw on the worm wheel and the second connecting screw on the worm connecting seat.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A new type of coupling, used for connecting a rotary transformer and a butt shaft, characterized in that: include: An output shaft, wherein the output shaft is arranged on the rotary transformer; A worm gear assembly, the worm gear assembly comprising a worm gear and a worm gear connecting portion, the worm gear and the worm gear connecting portion are fixedly connected; the worm gear and the worm gear connecting portion are both mounted on the output shaft; A worm gear cover plate, the worm gear cover plate being located at one side of the worm gear connecting portion; A worm connecting seat, the worm connecting seat is located on a side of the worm wheel away from the worm wheel cover plate, and cooperates with the worm wheel cover plate to clamp the worm wheel to form a whole; the other end of the worm connecting seat is provided with a protruding shaft; A worm, the worm is rotatably arranged in the worm connecting seat and meshes with the worm wheel; the docking shaft is arranged on a side of the worm connecting seat away from the worm wheel; An elastic coupling, the elastic coupling is located between the extending shaft and the docking shaft and is used for connecting the extending shaft and the docking shaft; The output shaft is provided with an oblique cutout, the worm wheel connecting part is provided with a docking groove corresponding to the oblique cutout, the worm wheel connecting part is provided with a second clamping groove, the second clamping groove is fastened by a second fastening screw, the worm wheel is fastened by a nut, the worm cover plate is fixedly connected to the worm connecting seat by a first connecting screw, and the docking shaft is arranged on a side of the worm connecting seat away from the worm wheel.

2. The novel coupling according to claim 1 is characterized in that: The worm connecting seat is fixedly connected to the worm wheel cover plate.

3. The novel coupling according to claim 1 is characterized in that: The worm wheel and the worm wheel connecting portion are integrally formed.

4. The novel coupling according to claim 1 is characterized in that: Self-lubricating bearings are arranged at both ends of the worm, a worm cover plate is arranged on the outside of the worm, the worm cover plate is fixedly connected to the worm connecting seat, the self-lubricating bearing penetrates into the worm and is installed between the worm cover plate and the worm connecting seat.

5. A method for installing a novel coupling, using the novel coupling according to any one of claims 1 to 4, characterized in that: The method comprises the following steps: S1. Insert the elastic coupling onto the docking shaft and leave space for installation; S2. Insert the worm gear cover onto the output shaft and move it toward the resolver side; S3. Insert the worm gear assembly onto the output shaft and tighten it with a nut; S4, insert the worm connecting seat into the worm wheel, insert the second fastening screw into the hole corresponding to the worm wheel connecting part, do not tighten the second fastening screw temporarily, connect the worm wheel cover plate and the worm connecting seat with the second connecting screw, do not tighten the second connecting screw temporarily; S5. The self-lubricating bearing is inserted into the worm and installed in the worm connecting seat. The worm wheel is rotated and adjusted to a suitable meshing position with the worm; S6. Install the worm cover plate, and fasten the worm cover plate and the worm connecting seat with a first connecting screw; S7, move the elastic coupling to one side of the rotary transformer, dock it with the extended shaft on the worm connecting seat, insert the first fastening screw and the set screw into the corresponding holes and tighten them; S8. Rotate the worm and fine-tune the value of the rotary encoder. After adjusting to the required value, tighten and fix the second fastening screw on the worm wheel and the second connecting screw on the worm connecting seat.

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