CN211498084U

CN211498084U - Dynamic balancing device for high-speed main shaft of tufting machine

Info

Publication number: CN211498084U
Application number: CN201921802518.1U
Authority: CN
Inventors: 戴惠良; 王龙龙; 白雅楠; 丁富营
Original assignee: Donghua University
Current assignee: Donghua University
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-09-15
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to a tufting machine high speed spindle dynamic balance device, a serial communication port, including N section shaft section, N is greater than or equal to 2, connects fixedly through the connecting piece between two adjacent shaft sections, and every shaft section middle part is equipped with at least one action wheel, and every action wheel meshes from the driving wheel with one mutually, and every is all established on the synchronizing shaft from the equal cover of driving wheel, and every synchronizing shaft all fixes on bearing housing mechanism, and bearing housing mechanism then locates on the fixed seat mechanism. The utility model discloses changed original dynamic balance form that the balanced quality of interpolation leads to the main shaft load to increase, through changing original main shaft structure, adopted the sectional type main shaft, increased gear train meshing device, for the high-speed main shaft dynamic balance problem of tufting machine provides a new scheme, can improve the operating speed of main shaft, operate steadily, vibrate for a short time, can effectively productivity gain and productivity effect.

Description

Dynamic balancing device for high-speed main shaft of tufting machine

Technical Field

The utility model relates to a high-speed main shaft dynamic balance device of tufting machine relates to tufting carpet processing equipment technical field.

Background

The carpet tufting process is that several main link mechanisms mounted on the main shaft drive tufting needle rows to penetrate reciprocally on the base fabric, and the tufting needle rows are matched with hook actuating mechanism or knife actuating mechanism in time sequence to form cut pile or loop pile on the carpet surface. The main shaft device of the existing tufting machine generally comprises a main shaft, at least one driven shaft and a plurality of groups of link mechanisms, wherein tufting needle rows, loop forming hooks and cutting knives are all positioned at the tail ends of the link mechanisms, and the main shaft and the driven shaft are rotation or swing action fulcrums of the link mechanisms. The main shaft provides power for the whole main shaft device of the tufting machine, and the reaction force of the tail end executing device acts on the main shaft, so that the vibration of the main shaft is accelerated, and the problem of dynamic unbalance of the main shaft device is obvious. The dynamic unbalance is the movement characteristic of the link mechanism, so the dynamic unbalance problem of the main shaft device limits the improvement of the working rotating speed of the main shaft of the tufting machine, and reduces the productivity and the production benefit.

Disclosure of Invention

The utility model aims at: the original main shaft form is changed, and the problem of dynamic unbalance of the main shaft of the tufting machine during high-speed operation is solved.

In order to achieve the purpose, the technical scheme of the utility model a high-speed main shaft dynamic balance device of tufting machine is provided, a serial communication port, including N section shaft section, N is greater than or equal to 2, connects fixedly through the connecting piece between two adjacent shaft sections, and every shaft section middle part is equipped with at least one action wheel, and every action wheel meshes from the driving wheel with one, and every is all established on the synchronizing shaft from the equal cover of driving wheel, and every synchronizing shaft all fixes on bearing housing mechanism, and bearing housing mechanism then locates on the fixed seat mechanism.

Preferably, the connecting member is a universal-type coupling.

Preferably, the bearing seat mechanism includes a first bearing seat and a second bearing seat disposed at two ends of the synchronizing shaft.

Preferably, the fixed seat mechanism includes a first fixed seat and a second fixed seat, the first bearing seat is disposed on the first fixed seat, and the second bearing seat is disposed on the second fixed seat.

The utility model discloses a sectional type main shaft has structurally increased dynamic balance device, provides effectual solution for tufting machine main shaft dynamic unbalance problem, can effectively improve main shaft operating speed. The main shaft of the tufting machine with the dynamic balance device has high working rotating speed, stable operation and small vibration, and can effectively improve the productivity and the production benefit.

The utility model has the advantages that: the dynamic balance device changes the original dynamic balance form that the addition of balance mass leads to the increase of the load of the main shaft, adopts a sectional type main shaft by changing the original main shaft structure, increases a gear set meshing device, provides a new scheme for the dynamic balance problem of the high-speed main shaft of the tufting machine, can improve the working speed of the main shaft, operates stably, has small vibration, and can effectively improve the productivity and the production benefit.

Drawings

Fig. 1 is an outline view of the device of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a partial enlarged view of the installation effect of the present invention.

Fig. 4 is an outline view of the universal coupling of the present invention.

Fig. 5 is an outline view of the bearing seat of the present invention.

Fig. 6 is an outline view of the synchronizing shaft of the present invention.

Fig. 7 is an outline view of the fixing base of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

As shown in fig. 1, the utility model provides a pair of high-speed main shaft dynamic balance device of tufting machine, including main shaft 1, universal coupling 2, gear train 3, bearing frame 4, fixing base 5 and synchronizing shaft 6.

In the present embodiment, referring to fig. 2, the main shaft 1 is divided into two shaft segments, namely a first shaft segment 1A and a second shaft segment 1B. The first shaft section 1A and the second shaft section 1B are connected through a universal coupling 2, and the fixing mode is a clamping screw fixing mode. The universal coupling 2 has a precision correction coupling with the function of mechanically absorbing eccentricity and deflection angles, and the universal joint structure form with a unique structure can restrain slight internal force and absorb transmission errors and has the characteristics of high rigidity, low inertia, high resonance frequency, precise position pause response and the like. The clockwise rotation and the anticlockwise rotation of the universal coupling 2 are completely the same, the universal coupling can rotate at a constant speed, the impact generated by the flexible deformation of the main shaft 1 is reduced, and the transmission is stable.

As can be seen in fig. 2, a dynamic balancing device is provided on each shaft segment and is uniformly arranged in the middle of the segmented main shaft, i.e. the dynamic balancing devices are arranged in pairs in the middle of the segmented main shaft. In this embodiment, the dynamic balance device disposed on the first shaft segment 1A includes a first driving wheel 31A, a first driven wheel 32A, a first bearing seat 41A, a second bearing seat 42A, a first fixing seat 51A, a second fixing seat 52A, and a first synchronizing shaft 6A. The dynamic balancing device arranged on the second shaft section 1B comprises a second driving wheel 31B, a second driven wheel 32B, a second first bearing seat 41B, a second bearing seat 42B, a second first fixed seat 51B, a second fixed seat 52B and a second synchronizing shaft 6B.

The dynamic balance device arranged on the first shaft section 1A and the dynamic balance device arranged on the second shaft section 1B have the same structure, and the dynamic balance device arranged on the first shaft section 1A is taken as an example: the first driving wheel 31A is mounted in the middle of the first shaft section 1A through key connection, the first driven wheel 32A is mounted in the middle of the first synchronous shaft 6A through key connection, and the first driving wheel 31A and the first driven wheel 32A are in transmission in equal transmission ratio. The first synchronous shaft 6A, the first bearing block 41A and the second bearing block 42A are installed together, and two ends of the first synchronous shaft are fixed by set screws, so that the universality and the interchangeability are good. The first bearing seat I41A and the first fixing seat I51A, and the second bearing seat I42A and the second fixing seat I52A are fixed on the frame of the tufting machine through threaded connection. The fixing seat 5 is provided with double pairs of holes, and the mounting center distance of the gear set 3 can be adjusted. The first bearing seat 41A and the second bearing seat 42A are vertical, the bearing has an outer spherical surface and an inner diameter of the bearing is a stop screw round hole type, and the rolling body is made of steel.

The driving wheel and the driven wheel of the gear set 3 have equal teeth, the transmission mode is equal transmission ratio transmission, and the installation center distance of the gear set is adjustable. The gear sets are at least two groups, and the structural form of the gears is a straight-tooth cylindrical gear or a non-straight-tooth cylindrical gear.

When the main shaft 1 runs at a high speed, the first main shaft 1A and the second main shaft 1B keep good coaxiality through the universal coupling 2, and the control precision of the rotation angle between the sectional main shafts can be guaranteed. Taking the dynamic balance device disposed on the first shaft section 1A as an example, the first driving wheel 31A drives the first driven wheel 32A to rotate. The first synchronizing shaft 6A and the main shaft 1 keep synchronous rotation, and the installation center distance between the first synchronizing shaft and the main shaft is adjustable. At least one group of gear sets 3 is arranged on the first main shaft 1A, at least two groups of gear sets 3 are arranged on the main shaft 1, and the structural form of the gears is changeable.

It needs to be further explained that: the utility model provides a pair of high-speed main shaft dynamic balance device of tufting machine can realize through the mounted position of adjusting fixing base 5 dynamic balance device's installation distance is adjusted the dynamic balance of different main shaft rotational speeds is realized to dynamic balance device's group number. The specific adjusting method comprises the following steps: the position of a fastening thread of the fixed seat 5 is adjusted to realize that the gear set 3 is installed in a standard center distance mode, and the gear transmission mode is standard gear transmission; when the rotating speed of the main shaft is more than 800rpm, the position of the fastening thread is slightly adjusted, so that the mounting center distance between the gear sets 3 is slightly larger than the standard center distance, and the gear transmission mode is positive transmission, which is beneficial to reducing the abrasion degree between the gears, increasing the meshing angle and improving the bearing capacity of the gear teeth.

Claims

1. The utility model provides a tufting machine high speed main shaft dynamic balance device which characterized in that, includes N section shaft section, and N is greater than or equal to 2, connects fixedly through the connecting piece between two adjacent shaft sections, and every shaft section middle part is equipped with at least one action wheel, and every action wheel meshes with a driven wheel mutually, and every is all overlapped from the driving wheel on the synchronizing shaft, and every synchronizing shaft all fixes on bearing housing mechanism, and bearing housing mechanism then locates on the fixed seat mechanism.

2. The dynamic balancing apparatus of claim 1, wherein the connecting member is a universal joint.

3. The dynamic balancing apparatus of claim 1, wherein the bearing support mechanism comprises a first bearing support and a second bearing support disposed at opposite ends of the synchronizing shaft.

4. The dynamic balancing apparatus of claim 3, wherein the fixed base mechanism comprises a first fixed base and a second fixed base, the first bearing seat is disposed on the first fixed base, and the second bearing seat is disposed on the second fixed base.