In-phase assembly and adjustment method for parallel output structures in the same direction

A technology of output structure and adjustment method, applied in hoisting devices, components with teeth, transmission parts, etc., can solve the problems of unable to reduce or eliminate the phase deviation of the tooth side clearance, reduce the torque transmission capacity, and high process cost

Active Publication Date: 2021-09-14
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, more connections or mating relationships are added to these structures, which makes the internal structure of the gearbox more complicated and the process cost is higher. In addition, these structures are easy to reduce the torque transmission capacity, and are usually not suitable for high-speed equipment.
And even if these structures improve the convenience of the gear box in-phase adjustment to a certain extent, the in-phase accuracy after adjustment is not very ideal
[0005] In addition, there must be backlash between a pair of meshing gears in actual gear transmission, and the structure in the prior art basically cannot reduce or eliminate the phase deviation caused by the backlash

Method used

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  • In-phase assembly and adjustment method for parallel output structures in the same direction
  • In-phase assembly and adjustment method for parallel output structures in the same direction
  • In-phase assembly and adjustment method for parallel output structures in the same direction

Examples

Experimental program
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Embodiment 1

[0053] like figure 1 shown is a schematic diagram of the internal structure of a gear box of a twin-screw extruder in the prior art, the gear box includes a box body 1 (only a part of the box body 1 is shown in the figure, those skilled in the art can refer to the existing Gearboxes in the prior art are designed and implemented), input shaft system 2 , secondary reduction shaft system 3 , first output shaft system 4 , transition shaft system 5 and second output shaft system 6 .

[0054] The input shaft system 2 includes an input shaft 21 rotatably connected to the casing 1 and a helical gear H22 fixed on the input shaft 21 . figure 1 The left end of the middle input shaft 21 is exposed on the left side of the casing 1 for connecting an external motor. The secondary reduction shaft system 3 includes a secondary shaft 31 rotatably connected to the casing 1 , and a helical gear K32 and a helical gear M33 fixed on the secondary shaft 31 . The first output shaft system 4 includes...

Embodiment 2

[0080] This embodiment still takes the gearbox of the twin-screw extruder in the first embodiment as an example, and uses the corresponding angle error measured in the first embodiment, and supplements the relevant parameters of the helical gear B52, that is, the helical gear A43 and The pitch circle diameter dp of the helical gear B52 when the helical gear B52 meshes B =770mm.

[0081] The in-phase assembly adjustment method of the parallel and co-directional output structure in this embodiment is based on the first embodiment. Considering that the gear pair usually has a backlash in the running state, this backlash can be regarded as an assembly error, so Step S21 is included after step S2 in the first embodiment: measuring the circumferential backlash between the helical gear A43 and the helical gear B52 and denoting it as j AB , the circumferential backlash of the gear pair is an arc length, so j AB Always positive, measure the circumferential backlash j with a dial indi...

Embodiment 3

[0096] like Figure 13 shown is a schematic diagram of the internal partial structure of a gear box of a twin-screw extruder granulator in the prior art, and the twin-screw extruder granulator is also a twin-screw extruder. The gearbox includes a casing (not shown in the figure), an input shaft system 7 , a first output shaft system 8 , a transition shaft system 9 and a second output shaft system 10 .

[0097] The input shaft system 7 includes an input shaft 71 rotatably connected to the casing and a helical gear S72 fixed on the input shaft 71 . Figure 13 The left end of the middle input shaft 71 is exposed on the left side of the casing for connecting an external motor. The first output shaft system 8 includes a long output shaft 81 rotatably connected to the box body, and a helical gear T82 and a helical gear A83 fixed on the long output shaft 81. The output end of the long output shaft 81 is provided with an integrally processed outer flower. key E84. The transition sh...

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Abstract

The invention relates to the technical field of twin-screw extruder gear boxes, and discloses a method for in-phase assembly and adjustment of a parallel output structure in the same direction, including a box body, a first output shaft system, a transition shaft system and a second output shaft system. The method described includes: S1, measuring the angle error between the transmission parts in each shaft system; S2, assembling each shaft system and transmission parts on the box according to the design position; S3, calculating the actual phase deviation; S4, comparing And calculate the number of teeth that need to be adjusted and the axial movement amount; S5, adjust according to the calculation result in S4. According to the method of the present invention, it is not necessary to modify the internal structure of the existing gearbox to adjust the output co-phase, and the torque transmission capacity of the gear pair is ensured. In addition, the adjustment can be made according to the results obtained by accurate measurement and comparison calculation. It needs to be disassembled and reassembled repeatedly, which can greatly reduce the adjustment difficulty, shorten the assembly adjustment time, and greatly save manpower and material resources.

Description

technical field [0001] The invention relates to the technical field of gearboxes for twin-screw extruders, and more particularly to a method for in-phase assembly and adjustment of parallel and co-directional output structures. Background technique [0002] The twin-screw extruder is developed on the basis of the single-screw extruder. It has the characteristics of good feeding, mixing and plasticizing, venting, extrusion stability, etc., so it is widely used in extrusion products. forming process. From the perspective of the rotation direction of the twin-screw, the twin-screw extruder includes a co-rotating twin-screw extruder and a counter-rotating twin-screw extruder. Among them, the co-rotating twin-screw extruder is also called an intermeshing co-rotating parallel twin-screw extruder, which has the advantages of high conveying efficiency, strong dispersing and mixing ability, good self-cleaning performance, uniform residence time distribution of materials in the machi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F16H57/023F16H55/08B29C48/25
CPCB29C48/251B29C48/2526F16H55/08F16H57/023F16H2057/0056F16H2057/0087F16H2057/02021
Inventor张坤邵广军许建忠康少博张浩董进朝乔永钦崔云翔许俊伟邢鹤琛
OwnerZHENGZHOU RES INST OF MECHANICAL ENG CO LTD