CN218147124U

CN218147124U - Lower keel lifting device of roving frame

Info

Publication number: CN218147124U
Application number: CN202222581296.3U
Authority: CN
Inventors: 周栋梁; 唐国新; 丁峰; 徐兆山; 费云锋; 高进平
Original assignee: Changzhou Tonghe Textile Machinery Manufacture Co ltd
Current assignee: Changzhou Tonghe Textile Machinery Manufacture Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2022-12-27
Anticipated expiration: 2032-09-28

Abstract

The utility model belongs to the technical field of the fly frame technique and specifically relates to a keel elevating gear under fly frame. The right end face of the lifting box body is provided with a lifting rack meshed with a lifting transmission shaft of the roving frame, the upper end and the lower end of the lifting box body are respectively provided with a first double bearing and a second double bearing, the other side of the lower end of the lifting box body is provided with a third double bearing assembly, and three-point double bearing positioning is formed among the first double bearing, the second double bearing and the third double bearing assembly; the first double bearing, the second double bearing and the third double bearing assembly form rolling friction with one side face of the rack lifting guide shaft; a screw hole is formed in the lifting box body, and an adjusting screw is installed in the screw hole. Adopt rolling friction, lifting resistance is little, adopts stay cord bearing weight balanced simultaneously, avoids down the keel horizontal tilt, and the precision is high, guarantees the straightness that hangs down of lift box body through three point duplex bearing location to guarantee the straightness that hangs down of lifting rack, thereby make keel elevating gear's under both sides stability high, the synchronism good.

Description

Lower keel lifting device of roving frame

Technical Field

The utility model belongs to the technical field of the fly frame technique and specifically relates to a keel elevating gear under fly frame.

Background

In the prior art, a lifting device used by a lower keel part in a roving frame is a lower keel lifting device, and the lifting of racks is mostly connected through a connecting block, and the lifting of the racks of a common roving frame adopts sliding friction, so that the lifting resistance is large, and the lower keel can transversely incline when the roving frame is used; meanwhile, the conventional rack lifting device also needs to be provided with structures such as a chain disc, a bracket, a lever and the like, so that the investment cost is increased, and the installation and the disassembly of the roving frame are not facilitated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the lower keel lifting device of the roving frame has the advantages that sliding friction of the ordinary roving frame is replaced by rolling friction, lifting resistance is small, and the lower keel is prevented from transversely inclining.

The utility model provides a technical scheme that its technical problem adopted is: a lower keel lifting device of a roving frame comprises a lifting box body and a rack lifting guide shaft which are of a hollow structure, wherein the rack lifting guide shaft is inserted in the lifting box body, a lifting rack meshed with a lifting transmission shaft of the roving frame is arranged on the right end face of the lifting box body, a first double bearing and a second double bearing are respectively arranged at the upper end and the lower end of the lifting box body, the first double bearing and the second double bearing are arranged at the same side, a third double bearing assembly is arranged at the other side of the lower end of the lifting box body, and three-point bearing positioning is formed among the first double bearing, the second double bearing and the third double bearing assembly; the rack lifting guide shaft is positioned between the first double bearing, the second double bearing and the third double bearing assembly, and rolling friction is formed between the first double bearing, the second double bearing and the third double bearing assembly and one side surface of the rack lifting guide shaft; a screw hole is formed in the lifting box body and located right left of the third double-bearing assembly, and an adjusting screw used for adjusting the third double-bearing assembly is installed in the screw hole.

Furthermore, third duplex bearing assembly includes third duplex bearing and swing arm, the rotation axis is worn to be equipped with by the one end of swing arm, and the notch has been seted up to the other end of swing arm, and the third duplex bearing passes through the rotation axis and installs in the notch.

Furthermore, the first double bearing, the second double bearing and the third double bearing are in clearance fit.

Furthermore, the lower extreme of lift box body is the hollow type box body that the four sides were enclosed, installs third duplex bearing assembly in the box body, installs lower keel subassembly on the box body.

Furthermore, the upper end of the lifting box body is also provided with a pull rope for lifting the lifting box body.

The beneficial effects of the utility model are that: the utility model discloses a rolling friction replaces ordinary fly frame sliding friction, and lifting resistance is little, adopts ni Long Gangxin suspender to bear the weight balance simultaneously, avoids down rail transverse inclination, cancels the chain dish, bracket, lever isotructure of ordinary fly frame, simple structure, simple to operate, and the precision is high moreover, guarantees the straightness that hangs down of lift box body through three point duplex bearing location simultaneously to guarantee the straightness that hangs down of lift rack, make rail elevating gear's under the fly frame both sides stability height, the synchronism is good.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of a third duplex bearing assembly of the present invention;

fig. 3 is a schematic structural view of the present invention assembled with the lower rail assembly;

in the figure: 1. the lifting box comprises a lifting rack, 2 rack lifting guide shafts, 3 first double bearings, 4 second double bearings, 5 third double bearing assemblies, 6 adjusting screws, 7 third double bearings, 8 swing arms, 9 rotating shafts, 10 notches, 11 rack brackets, 12 lower keel connecting plates, 13 lower keels, 14 guide sleeves, 15 bushings and 16 lifting boxes.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1 to 3, the lower spindle rail lifting device for the roving frame comprises a lifting box body 16 and a rack lifting guide shaft 2, wherein the lifting box body 16 is of a hollow structure, the rack lifting guide shaft 2 is inserted into the lifting box body 16, a lifting rack 1 meshed with a lifting transmission shaft of the roving frame is arranged on the right end face of the lifting box body 16, the lifting box body 16 and the lifting rack 1 are of an integrally formed structure or a split structure, and preferably, the lifting box body 16 and the lifting rack 1 are of an integrally formed structure.

The upper end and the lower end of the lifting box body 16 are respectively provided with a first double bearing 3 and a second double bearing 4, the first double bearing 3 and the second double bearing 4 are arranged at the same side, the other side of the lower end of the lifting box body 16 is provided with a third double bearing assembly 5, three-point double bearing positioning is formed among the first double bearing 3, the second double bearing 4 and the third double bearing assembly 5, and the first double bearing 3, the second double bearing 4 and the third double bearing 7 are in clearance fit;

the rack lifting guide shaft 2 is positioned between the first double bearing 3, the second double bearing 4 and the third double bearing assembly 5, and the first double bearing 3, the second double bearing 4 and the third double bearing assembly 5 form rolling friction with one side surface of the rack lifting guide shaft 2;

a screw hole is formed in the lifting box body 16 and located right left of the third double-bearing assembly 5, and an adjusting screw 6 used for adjusting the third double-bearing assembly 5 is installed in the screw hole.

Wherein, third duplex bearing assembly 5 includes third duplex bearing 7 and swing arm 8, rotation axis 9 is worn to be equipped with by the one end of swing arm 8, and notch 10 has been seted up to the other end of swing arm 8, and third duplex bearing 7 is installed in notch 10 through the pivot.

The stay cord that carries lift box body 16 is still installed to the upper end of lift box body 16, and the stay cord is nylon steel core suspender, is convenient for play certain cushioning effect at the lift in-process, guarantees keel elevating gear's factor of safety down.

As shown in fig. 3, the lower end of the lifting box 16 is a hollow box surrounded by four sides, a third double-bearing assembly 5 is installed in the box, and a lower keel assembly is installed on the box. The lower keel assembly comprises a rack bracket 11 and a lower keel 13, a lower keel connecting plate 12 is installed on the rack bracket 11, the lower keel 13 is installed on the lower keel connecting plate 12, a slotted hole is formed in the rack bracket 11, a guide sleeve 14 is installed in the slotted hole, a through hole corresponding to the slotted hole is formed in the lower keel connecting plate 12, and a lining 15 is installed in the through hole.

The working process is as follows:

step 1: inserting the rack lifting guide shaft 2 into the lifting box body 16, fixing the lifting guide shaft 2 on a wall plate of the roving frame, and ensuring the verticality of the lifting guide shaft 2; then, the verticality of the lifting box body 16 is adjusted, when the lifting box body 16 inclines, adjustment is carried out through the adjusting screw 6, namely three points and double bearings are used for positioning, and each point is provided with two bearings to increase stress; meanwhile, due to the fact that the parts are assembled in a clearance fit mode, the lower keel is inclined transversely due to the fact that clearances exist among the three points, the lower spindle blade is not concentric with the flyer, the swing arm 8 is additionally arranged at one point position on the inner side of the lifting box body 16, the clearances among the three points are adjusted through the adjusting screw 6, the verticality of the lifting box body 16 is guaranteed, and the lower keel is prevented from inclining transversely;

step 2: the driving device of the roving frame drives the lifting transmission shaft to rotate, the transmission shaft is provided with a gear, and the gear is meshed with the lifting rack 1, so that the lifting box body 16 is driven to move up and down, and the lower keel assembly is driven to move up and down.

To sum up, the utility model discloses a rolling friction replaces ordinary fly frame sliding friction, and lifting resistance is little, adopts ni Long Gangxin suspender to bear the weight balance simultaneously, cancels the chain dish, bracket, the lever isotructure of ordinary fly frame, simple structure, simple to operate.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a spindle rail elevating gear under fly frame which characterized in that: comprises a lifting box body (16) with a hollow structure and a rack lifting guide shaft (2), wherein the rack lifting guide shaft (2) is inserted in the lifting box body (16), a lifting rack (1) meshed with a lifting transmission shaft of a roving frame is arranged on the right end face of the lifting box body (16),

a first double bearing (3) and a second double bearing (4) are respectively arranged at the upper end and the lower end of the lifting box body (16), the first double bearing (3) and the second double bearing (4) are arranged at the same side, a third double bearing assembly (5) is arranged at the other side of the lower end of the lifting box body (16), and three-point double bearing positioning is formed among the first double bearing (3), the second double bearing (4) and the third double bearing assembly (5);

the rack lifting guide shaft (2) is positioned between the first double bearing (3), the second double bearing (4) and the third double bearing assembly (5), and rolling friction is formed between the first double bearing (3), the second double bearing (4) and the third double bearing assembly (5) and one side surface of the rack lifting guide shaft (2);

a screw hole is formed in the lifting box body (16), the screw hole is located right left of the third double-bearing assembly (5), and an adjusting screw (6) used for adjusting the third double-bearing assembly (5) is installed in the screw hole.

2. The lower rail lifting device of the roving frame according to claim 1, characterized in that: third duplex bearing assembly (5) include third duplex bearing (7) and swing arm (8), rotation axis (9) are worn to be equipped with by the one end of swing arm (8), notch (10) have been seted up to the other end of swing arm (8), third duplex bearing (7) are installed in notch (10) through the pivot.

3. The lower rail lifting device of the roving frame according to claim 2, characterized in that: the first double bearing (3), the second double bearing (4) and the third double bearing (7) are in clearance fit.

4. The lower rail lifting device of the roving frame according to claim 1, characterized in that: the lower extreme of lift box body (16) be the hollow type box body that the four sides enclose, install third duplex bearing subassembly (5) in the box body, install down the keel subassembly on the box body.

5. The lower rail lifting device of the roving frame according to claim 1, characterized in that: the upper end of the lifting box body (16) is also provided with a pull rope for lifting the lifting box body (16).