CN215058922U

CN215058922U - Rod end bearing for lower lifting rod of water-jet loom

Info

Publication number: CN215058922U
Application number: CN202120433771.5U
Authority: CN
Inventors: 肖永明; 殷延德
Original assignee: Qingdao Jinsanyang Textile Machinery Technology Co ltd
Current assignee: Qingdao Jinsanyang Textile Machinery Technology Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-12-07
Anticipated expiration: 2031-02-26

Abstract

The utility model discloses a rod end bearing for a hydraulic loom lower lifting rod, which comprises a shaft body, an outer shaft sleeve and an inner shaft sleeve, wherein the shaft body consists of a bearing rod and a bearing head which are integrally formed, the bearing head is in a circular ring structure, and the end of the bearing rod is provided with a longitudinal mounting hole along the length direction of the bearing rod and is internally provided with a thread; the outer shaft sleeve is arranged in the bearing head and is in interference fit with the bearing head; the inner shaft sleeve is arranged on the inner side of the outer shaft sleeve, is in clearance fit with the outer shaft sleeve and can rotate and move left and right in the outer shaft sleeve, and a groove which surrounds the outer side surface of the inner shaft sleeve for a circle is further formed in the outer side surface of the inner shaft sleeve; the shaft body is made of stainless steel materials, and the outer shaft sleeve and the inner shaft sleeve are made of ceramic materials. The middle shaft sleeve is made of ceramics, has higher hardness and wear resistance, can be free of maintenance in a working environment with water, and has long service life; the mandrel can be effectively protected, the starting efficiency of the machine is greatly improved, the maintenance cost of the machine is reduced, and the workload and the labor intensity of workers are greatly reduced.

Description

Rod end bearing for lower lifting rod of water-jet loom

Technical Field

The utility model relates to the technical field of textile machinery, concretely relates to a rod end bearing that is used for hydraulic loom to carry heald rod down.

Background

The water jet loom is a shuttleless loom which adopts a jet water column to pull weft yarns to pass through a shed, and the weft yarns on the loom are jetted to warp yarns by utilizing the force of water jet. At present, the end bearing of the end of a lower lifting rod in a water-jet loom is an old-fashioned end bearing, the shaft sleeve of the bearing is fixedly connected with a bearing rod, the shaft sleeve is movably connected with a mandrel, friction is generated between the shaft sleeve and the mandrel, the mandrel is easy to wear and tear when the bearing is used for a long time, and meanwhile, the shaft sleeve is a non-metal polymer, so that the wear resistance is low, the bearing is easy to wear and tear, frequent replacement and maintenance are needed, the production efficiency is delayed, the maintenance cost is increased, and the workload and the labor intensity of workers are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a rod end bearing for a lower lifting rod of a water-jet loom.

In order to solve the technical problem, the utility model discloses a technical scheme is: a rod end bearing for a lower heald lifting rod of a water-jet loom comprises a shaft body, an outer shaft sleeve and an inner shaft sleeve, wherein the shaft body consists of a bearing rod and a bearing head which are integrally formed, the bearing head is in a circular ring structure, and the end head of the bearing rod is provided with a longitudinal mounting hole and a built-in thread along the length direction of the bearing rod; the outer shaft sleeve is arranged in the bearing head and is in interference fit with the bearing head; the inner shaft sleeve is arranged on the inner side of the outer shaft sleeve, is in clearance fit with the outer shaft sleeve and can rotate and move left and right in the outer shaft sleeve, and a groove which surrounds the outer side surface of the inner shaft sleeve for a circle is further formed in the outer side surface of the inner shaft sleeve; the shaft body is made of stainless steel materials, and the outer shaft sleeve and the inner shaft sleeve are made of ceramic materials.

Further, the width of the inner shaft sleeve is slightly larger than that of the outer shaft sleeve.

Compared with the prior art, the utility model discloses following beneficial effect has: the middle shaft sleeve is made of ceramic materials, has higher hardness and wear resistance, is waterproof, can be free of maintenance in a water working environment, has long service life and does not need to be replaced for a long time; and the bearing adopts the rotation between the shaft sleeves when in use, so that the mandrel can be effectively protected, the starting efficiency of the machine is greatly improved, the maintenance cost of the machine is reduced, and the workload and the labor intensity of workers are greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a longitudinal sectional view of the present invention in a use state;

FIG. 3 is a schematic diagram of a prior art rod end bearing;

FIG. 4 is a longitudinal cross-sectional view of the structure of FIG. 3 in use;

FIG. 5 is an enlarged view of A in FIG. 2;

in the figure: 11. the bearing comprises a bearing rod 12, a bearing head 13, an outer shaft sleeve 14, an inner shaft sleeve 15, a longitudinal mounting hole 16 and a groove; 21. the shaft rod 22, the shaft head 23, the shaft sleeve 24, the connecting hole 25, the lubricating pipe connecting hole 26 and the lubricating oil through hole; 3. and 4, a mandrel, 4, a mandrel cabin.

Detailed Description

It should be noted that, in the present invention, the position or position relation indicated by the terms such as "upper", "lower", "front", "back", etc. is the position or position relation shown in the drawings, and the relation words determined for the convenience of describing the structural relation of the components of the present invention are not specific to any component of the present invention, and the limitation of the present invention cannot be understood.

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

as shown in fig. 1, a rod end bearing for a lower heald lifting rod of a water jet loom comprises a shaft body, an outer shaft sleeve 13 and an inner shaft sleeve 14, wherein the shaft body consists of a bearing rod 11 and a bearing head 12, the bearing head 12 is positioned at the lower end of the bearing rod 11 and is integrally formed with the bearing rod 11, and the bearing head 12 is of a circular ring structure; the upper end of the bearing rod 11 is provided with a longitudinal mounting hole 15 along the length direction of the bearing rod 11, and the inner wall of the bearing rod is provided with threads. The outer shaft sleeve 13 and the inner shaft sleeve 14 are both made of ceramic materials, and the surfaces are smooth; the outer shaft sleeve 13 is arranged on the inner side of the bearing head 12, is in interference fit with the bearing head 12 and is fixed; the outer diameter of the inner shaft sleeve 14 is slightly smaller than the inner diameter of the outer shaft sleeve 13, so that when the inner shaft sleeve 14 is installed in the outer shaft sleeve 13, clearance fit is formed between the inner shaft sleeve 14 and the outer shaft sleeve 13, and the inner shaft sleeve can rotate and move left and right in the outer shaft sleeve 13; as shown in fig. 5, the width of the inner shaft sleeve 14 is greater than the width of the outer shaft sleeve 13, so that when the bearing is installed in the mandrel cabin 4, a certain gap is left between the outer shaft sleeve 13 and the mandrel cabin wall to provide an operating space; a groove 16 is further formed around the central line of the outer side surface of the inner shaft sleeve 14 to provide a space for applying lubricant during installation, so that the installation is convenient.

The shaft body is integrally formed of a stainless steel material.

When the lifting device is used, firstly, a nut is arranged on a threaded rod of the lower lifting rod, the rod end bearing is arranged on the threaded rod through a longitudinal mounting hole 15 at the upper end of a bearing rod 11, the angle is adjusted, and the rod end bearing is fastened and fixed by the nut which is arranged in advance; the bearing head 12 provided with the outer shaft sleeve 13 and the inner shaft sleeve 14 is placed in the mandrel cabin 4, the center of the inner shaft sleeve 14 is aligned with the mounting hole of the mandrel 3 on the mandrel cabin 4, the mandrel 3 penetrates through the mandrel cabin 4 and the inner shaft sleeve 14 and is limited and fixed by the nut, and at the moment, the mandrel 3 and the inner shaft sleeve 14 are in a fixed state, as shown in fig. 2. When the machine operates, the outer shaft sleeve 13 and the inner shaft sleeve 14 are in a moving state, and the bearing rod 11 and the outer shaft sleeve 13 swing around the inner shaft sleeve 14.

In the prior art, as shown in fig. 3 and 4, a shaft sleeve 23 is installed on the inner side of a shaft head 22 of an old-fashioned rod end bearing, the shaft head 22 and the shaft sleeve 23 are in interference fit and fixed, when the old-fashioned rod end bearing is used, a mandrel 3 is inserted into the shaft sleeve 23, and a shaft rod 21 and the shaft sleeve 23 swing around the mandrel 3 and directly rub against the mandrel 3; in order to reduce friction and damage, a lubrication pipe connection hole 25 to the sleeve 23 is formed at the lower end of the shaft 21, and a lubrication oil through hole 26 is formed in the sleeve 23, so that lubrication oil can be supplied intermittently during operation to reduce friction against the spindle 3. The conventional device has a complex structure, is easy to damage, needs frequent maintenance, reduces starting efficiency, and is in sharp contrast with a novel rod end bearing.

Finally, it should be noted that the above description of the embodiments is only for illustrating the technical solutions of the present invention, and is not a limitation of the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention also belong to the protection scope of the present invention.

Claims

1. A rod end bearing for a lower lifting rod of a water jet loom is characterized in that: the bearing comprises a shaft body, an outer shaft sleeve and an inner shaft sleeve, wherein the shaft body consists of a bearing rod and a bearing head which are integrally formed, the bearing head is in a circular ring structure, and the end of the bearing rod is provided with a longitudinal mounting hole along the length direction of the bearing rod and internally provided with threads; the outer shaft sleeve is arranged in the bearing head and is in interference fit with the bearing head; the inner shaft sleeve is arranged on the inner side of the outer shaft sleeve, is in clearance fit with the outer shaft sleeve and can rotate and move left and right in the outer shaft sleeve, and a groove which surrounds the outer side surface of the inner shaft sleeve for a circle is further formed in the outer side surface of the inner shaft sleeve; the shaft body is made of stainless steel materials, and the outer shaft sleeve and the inner shaft sleeve are made of ceramic materials.

2. A rod end bearing for a lower heddle of a water jet loom according to claim 1 characterised in that: the width of the inner shaft sleeve is slightly larger than that of the outer shaft sleeve.