CN1028178C - Ribbon loom transmission shaft bearing device - Google Patents

Abstract

The invention relates to a bearing device for a transmission shaft of a ribbon loom, which is mainly characterized in that a group of ball bearings are respectively assembled between fixing plates at two sides and the transmission shaft, a bearing sleeve is arranged at the inner side of the fixing plate at one side, and a group of one-way needle roller bearings are assembled in the bearing sleeve, so that the force for supporting the transmission shaft can be provided by the ball bearings between the transmission shaft and the fixing plates, meanwhile, the effect of preventing reversion is provided by the needle roller bearings at the inner side of the bearing sleeve, and the transmission shaft can be prevented from being damaged due to stress when in use.

Description

The invention relates to a drive shaft bearing device of a loom, in particular to a drive shaft bearing device which reconfigures the non-return bearing in the drive shaft of a weaving machine so that it can have better non-return effect.

The existing belt loom transmission mechanisms are all powered by a motor, which drives the drive shaft to decelerate through the belt, and then drives the flower plate shaft to rotate with the belt, and drives the knife to close with the help of the flower plate chain, while the other end of the flower plate shaft is Cooperating with the speed change gear set to drive the movement of the pull belt shaft, its overall structure and configuration are quite precise; but there are shortcomings in the transmission mechanism of the existing ribbon loom that are not paid attention to, which will cause machine parts to fail after a period of use. Requires maintenance, causing considerable distress to the user.

As far as the structure of the existing ribbon loom is concerned, its transmission shaft bearing configuration structure is as shown in Figure 3, the transmission shaft 81 is pivotally installed between the fixed plates 80 on both sides of the machine table, because the thickness of the fixed plates 80 is limited , and it is impossible to assemble multiple sets of bearings between the transmission shaft 81 and the fixed plate 80, but because this type of ribbon loom is in use, it must be ensured that the transmission shaft 81 cannot be reversed, so as not to affect the overall weaving operation, so in the existing In the structural configuration of the belt loom drive shaft 81, a ball bearing 83 for supporting the force is assembled between the fixed plate 80 and the drive shaft 81 near the drive sprocket 82 side, and the fixed plate 80 and the drive shaft 81 on the other side A one-way needle roller bearing 84 that prevents the reverse rotation of the transmission shaft 81 is assembled between them. Although such a design can not only provide the function of pivoting the transmission shaft 81, but also achieve the effect of preventing the transmission shaft 81 from reverse rotation, the overall design cannot reach a perfect level. .

If it is analyzed in terms of structure, it can be known that in the existing webbing On the bearing configuration of the drive shaft 81 of the machine, although it is assembled with a ball bearing 83 at the end of the drive shaft 81 near the drive sprocket 82 side to bear a larger part of the force, it still cannot overcome the impact of the needle bearing 84 on the other side. Because the function of the needle roller bearing 84 itself is to provide a one-way action, rather than to bear the force, the one-way needle roller bearing 84 is used to provide supporting force on one end of the drive shaft of the existing belt loom And the dual function of preventing reverse rotation will inevitably cause the needle roller bearing 84 to be damaged due to unbearable load after being used for a period of time. Once it is damaged, the entire ribbon loom must be shut down for replacement and maintenance, which will affect the overall processing operation. , which is more serious, is that when the needle roller bearing 84 on the transmission shaft 81 side is damaged, it is often unknown, and the ribbon loom cannot be stopped in time, that is, the transmission shaft 81 is still damaged after the needle bearing 84 is damaged. It can continue to rotate, but in operation, it is inevitable that the transmission shaft 81 will reverse due to the start and stop, so that the whole batch of knitting products will become defective products and be scrapped, which will cause considerable losses to the manufacturer. Although the phenomenon that this needle roller bearing 84 is easy to be damaged has existed for a long time, it is limited by the relative position between the machine table fixed plate 80 and the power transmission shaft 81, and cannot be improved always.

The primary purpose of the present invention is to provide a belt loom transmission shaft bearing device, which uses ball bearings at both ends of the transmission shaft to provide the supporting force of the transmission shaft, so as to ensure the stable pivoting of the transmission shaft, and will never be damaged due to force. damage its bearings.

Another object of the present invention is to provide a belt loom drive shaft bearing device, which adopts a set of one-way needle bearings assembled in the bearing sleeve assembled on the fixed plate on one side of the drive shaft, and the set of needle bearings can Under the condition of no supporting force at all, it provides its due anti-reversal function, so that the overall structure has a longer service life.

The invention provides a transmission shaft bearing device of a ribbon loom, which is mainly A bearing device at both ends of the transmission shaft assembled in the loom machine table for transmission. The fixed plates on both sides of the machine table are provided with opposite shaft holes, and the transmission shaft can be pivoted between them. It is characterized in that:

A group of ball bearings are respectively assembled between the shaft holes of the two fixing plates and the transmission shaft.

In addition, a bearing sleeve is assembled on the shaft hole side of the fixed plate on one side, and a group of one-way needle roller bearings are assembled in the bearing sleeve.

In order to make further understanding of the characteristics and essential content of the drive shaft bearing device of the ribbon loom proposed by the present invention, now in conjunction with the accompanying drawings, set forth in detail as follows:

Brief description of the drawings:

Fig. 1 is a three-dimensional structural schematic diagram of a preferred embodiment of a transmission mechanism of a ribbon loom according to the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the drive shaft combination of the ribbon loom of the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of the drive shaft assembly of the existing ribbon loom.

Please refer to shown in Fig. 1, it is the stereoscopic structure schematic diagram of the preferred embodiment of the transmission mechanism of the ribbon loom of the present invention, can see the structural disposition state of the integral transmission mechanism of the ribbon loom of the present invention among the figure, on the rear side of machine platform 59 A motor 10 is assembled below, the motor 10 drives the transmission shaft 20 to rotate with the belt 101, and the other end of the transmission shaft 20 drives the flower plate shaft 50 to rotate with the belt 21, and the flower plate shaft 50 is used to drive the knife closing action. The other end of flower plate shaft 50 then can be used to drive a driving gear 60, drives driven gear 70 to rotate through idler wheel 61 and speed change gear first 62 and speed change gear second 63, and can be used to drive drawstring shaft 75 to rotate.

Please refer to Fig. 2, which is a schematic diagram of the combined cross-sectional structure configuration of the transmission shaft of the present invention, from which the structural configuration and characteristics of the belt loom transmission shaft bearing device provided by the present invention can be clearly seen, The both sides of drive shaft are the fixed plate 11 of machine platform 59, and on the fixed plate 11 is provided with opposite shaft holes 12, the shaft holes 12 are used to assemble the transmission shaft 20, and a group of ball bearings 22 are respectively assembled in the shaft holes 12 of the two fixed plates 11, which can provide the transmission shaft 20 with excellent performance. Pivoting support effect, simultaneously at transmission shaft 20 one end of the present invention is provided with transmission belt pulley 23, and can use when being available for transmission.

In this figure, it can be seen that a bearing sleeve 24 is assembled inside the shaft hole 12 of the fixed plate 11 on one side, and a group of one-way needle roller bearings 25 are assembled in the bearing sleeve 24, and the one-way needle roller bearings 25 are Used in conjunction with the transmission shaft 20.

When the drive shaft 20 of the present invention is assembled, it can be driven by the drive pulley 23 on one side, and the ball bearings 22 in the fixed plates 11 on both sides can bear the power of the drive shaft 20, and can be driven by the single in the bearing sleeve 24 The needle roller bearing 25 is provided with an excellent anti-reversal effect, which can make the whole more stable and practical in use.

According to the design of the transmission shaft 20 of the present invention, two sets of ball bearings 22 are assembled in the shaft hole 12 of the fixed plate 11, and the two sets of ball bearings 22 can bear the power of the transmission shaft 20 and keep the transmission shaft 20 rotating stably At the same time, the one-way needle roller bearing 25 is assembled by means of a bearing sleeve 24, so that the needle roller bearing 25 can control the one-way rotation of the transmission shaft 20 without bearing the load force, so as to achieve the practicality required by the design. Purpose.

Claims (1)

1, a kind of inkle loom transmission shafts bearing apparatus, this bearing arrangement mainly is one to be assembled in the bearing arrangement in order to the power transmission shaft two ends of transmission in the inkle loom board, on the fixed head of board both sides, be provided with relative axis hole, and power transmission shaft can be pivoted therebetween, it is characterized in that: be assembled with one group of ball bearing respectively in the axis hole of two fixed heads and between the power transmission shaft, be assembled with a bearing holder (housing, cover) in a side fixed head axis hole side in addition, and in this bearing holder (housing, cover), be assembled with one group of unidirectional needle bearing.

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