CN113463254B - Back beam shaft for air jet loom - Google Patents
Back beam shaft for air jet loom Download PDFInfo
- Publication number
- CN113463254B CN113463254B CN202110764211.2A CN202110764211A CN113463254B CN 113463254 B CN113463254 B CN 113463254B CN 202110764211 A CN202110764211 A CN 202110764211A CN 113463254 B CN113463254 B CN 113463254B
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- China
- Prior art keywords
- flap plate
- back beam
- beam shaft
- needle bearing
- air jet
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/22—Back rests; Lease rods; Brest beams
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
Abstract
The invention discloses a back beam shaft for an air jet loom, which comprises the back beam shaft, a first needle bearing and a second needle bearing, wherein the first needle bearing and the second needle bearing are symmetrically distributed about the center of a spacer bush, a bulge is arranged in the middle of the outer wall of the back beam shaft, an expansion core pipe assembly is arranged on the bulge, and the expansion core pipe assembly is used for fixing the spacer bush, the first needle bearing and the second needle bearing on the back beam shaft. According to the rear beam shaft for the air jet loom, the original rear beam shaft for the air jet loom is improved, the two groups of needle roller bearings are added, the expansion core pipe assembly is utilized for assembling after soaking of liquid nitrogen, the two groups of needle roller bearings are greatly convenient to install, and the improved installation of the rear beam shaft is simpler and more convenient. Through increasing two sets of bearing, reduce the friction of back beam axle, improve technology accuracy, improve product quality and efficiency, stop the potential safety hazard simultaneously.
Description
Technical Field
The invention relates to a back beam shaft for an air jet loom.
Background
The air jet loom is the one with the highest speed, and has reasonable weft insertion mode, high weft insertion rate and simple and safe operation.
According to the patent number CN201910788158.2, a back beam shaft for an air jet loom is disclosed, which comprises two back beam supports, wherein one opposite sides of the two back beam supports are rotatably connected with swing plates through rotating shafts; the two fixed beam bearings are embedded at one opposite side of the two swinging plates; the fixed beam axle tube is fixedly sleeved on the inner rings of the two fixed beam bearings; the fixed beam is integrally formed on the surface of the fixed beam axle tube; the two swing beam bearings are embedded at one opposite sides of the two swing plates and are positioned above the fixed beam bearing. According to the invention, the installation mode of the fixed beam axle tube and the swing beam axle tube is changed into the installation mode of the fixed beam bearing and the swing beam bearing, so that the friction of the back beam axle can be reduced, the service life of parts is prolonged, the process accuracy is improved, the product quality and efficiency are improved, and the potential safety hazard is avoided.
In the long-term use process of the air jet loom, a back beam shaft is easy to wear and generate heat, so that the back beam is unstable in movement, the process tension is inaccurate, the product quality and the efficiency are influenced, and certain fire safety hidden dangers exist due to the fact that the back beam shaft is easy to wear and generate heat.
Disclosure of Invention
The invention aims to provide a back beam shaft for an air jet loom, which is used for reducing the friction of the back beam shaft, improving the process accuracy, improving the product quality and efficiency and simultaneously eliminating potential safety hazards.
In order to achieve the above purpose, the invention provides the following technical scheme: a back beam shaft for an air jet loom comprises a back beam shaft, a first needle roller bearing and a second needle roller bearing which are symmetrically distributed about the center of a spacer bush, wherein a boss is arranged in the middle of the outer wall of the back beam shaft, an expansion core pipe assembly is arranged on the boss, and the expansion core pipe assembly is used for fixing the spacer bush, the first needle roller bearing and the second needle roller bearing on the back beam shaft.
Preferably, one end of the boss is provided with a tenon sleeve, an inner wall of the tenon sleeve is spaced apart from an outer wall of the boss by a predetermined distance to form a cavity, and one end of the expanded core tube assembly is inserted into the cavity.
As preferred, the guide rail groove that is circumference array distribution is seted up to the outer wall of bellying, inflation core pipe subassembly includes left side lamella board and right side lamella board, left side lamella board and right side lamella board cover in the outer wall of bellying, and inside all is provided with the card and goes into the convex key in the guide rail groove.
Preferably, a vein strip is arranged in the middle of the outer wall of the opposite side of the left side flap plate and the right side flap plate, and the spacer bush is inserted from one end of the back beam shaft opposite to the tenon sleeve and is in threaded connection with the vein strip so as to be matched with the tenon sleeve to clamp the inner ring of the first needle bearing.
Preferably, a diamond gasket abutting against and fixed on the boss is connected to the rear beam shaft in a threaded manner, and the diamond gasket is used for being matched with the spacer to clamp the inner ring of the second needle bearing.
A method for assembling a back rest shaft for an air jet loom, the method comprising the steps of:
s1. Sleeving the bulge part at the preset position of the back beam shaft, and then welding
S2, soaking the left flap plate, the right flap plate, the spacer bush and the diamond gasket in liquid nitrogen for 5 seconds;
s3, inserting the left flap plate and the right flap plate from one end of the bulge part, which is opposite to one end of the tenon sleeve, and inserting the left flap plate and the right flap plate into the clamping cavity;
s4, inserting a first needle bearing into the outer walls of the left valve plate and the right valve plate, assembling the spacer bush on the vein strip in a threaded mode, and rotating by 3.5 threads;
and S5, inserting a second needle bearing into the outer walls of the left flap plate and the right flap plate, and then assembling the diamond gasket on the back beam shaft in a threaded manner and stopping the assembly under the blocking of the bulge.
In the technical scheme, the back beam shaft for the air jet loom provided by the invention has the following beneficial effects: this scheme improves at original back beam axle for the air jet loom, increases two sets of bearing, utilizes the inflation core pipe subassembly to assemble after soaking of liquid nitrogen, very big having made things convenient for and has carried out installation work to two sets of bearing for back beam axle modified installation is simple more, convenient. Through increasing two sets of bearing, reduce the friction of back beam axle, improve technology accuracy, improve product quality and efficiency, stop the potential safety hazard simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic overall structure diagram provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an explosion view according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a back beam axle according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a cross-section provided in an embodiment of the present invention;
fig. 5 is a schematic view of an assembly structure of the back beam shaft and the expansion core tube assembly according to the embodiment of the present invention.
Description of reference numerals:
1. a rear beam axle; 2. a spacer sleeve; 3. a first needle bearing; 4. a second needle bearing; 41. a guide rail groove; 5. an expansion core tube assembly; 51. a left flap plate; 52. a right flap plate; 53. a convex key; 55. pulse bars; 6. tenon sleeve; 61. a clamp cavity; 7. a diamond pad; 8. a raised portion.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a back beam shaft for an air jet loom includes a back beam shaft 1, and further includes a first needle bearing 3 and a second needle bearing 4 which are symmetrically distributed about a center of a spacer 2, a boss 8 is centrally provided on an outer wall of the back beam shaft 1, an expansion core tube assembly 5 is provided on the boss 8, and the expansion core tube assembly 5 is used for fixing the spacer 2, the first needle bearing 3 and the second needle bearing 4 on the back beam shaft 1.
Specifically, the embodiment provided by the invention is mainly improved aiming at the traditional back beam shaft, the back beam is positioned at the rearmost end of the weaving machine and provides equipment support for the production process of the weaving machine and the tension of the weaving machine, and during high-speed operation of the equipment, the back beam shaft 1 continuously moves, so that the friction force is large, the process is unstable due to abrasion of the back beam, potential safety hazards exist due to heat generation by friction, and the like. The solution provided by the invention is to add two groups of first needle bearings 3 and second needle bearings 4 to replace the traditional installation mode of two-end bearings so as to reduce friction force and avoid loss in the operation process. In addition, in order to reduce the technical difficulty, the construction period and the cost caused by the transformation, the expansion core tube assembly 5 and the boss 8 are matched to realize the installation and fixation of the first needle bearing 3 and the second needle bearing 4, so that the whole installation process is simple and rapid, and the period of the whole transformation is shortened.
In the embodiment provided by the invention, the original back beam shaft 1 for the air jet loom is improved, two groups of needle roller bearings are added, and the expansion core pipe assembly 5 is utilized to assemble after soaking in liquid nitrogen, so that the two groups of needle roller bearings are greatly convenient to install, and the improved installation of the back beam shaft 1 is simpler and more convenient. Through increasing two sets of bearing, reduce the friction of back beam axle, improve technology accuracy, improve product quality and efficiency, stop the potential safety hazard simultaneously.
As can be seen from fig. 3, in this embodiment, one end of the protruding portion 8 is provided with the tenon sleeve 6, the pipe diameter of the tenon sleeve 6 extends to the protruding portion 8, and the radius of the protruding portion 8 is smaller than that of the tenon sleeve 6, so that a space, i.e. a cavity 61, is formed between the tenon sleeve 6 and the protruding portion 8, and one end of the expansion core pipe assembly 5 mounted on the protruding portion 8 is inserted into the cavity 61 to cooperate with the diamond gasket 7 for interference fixation.
In the above scheme, as can be known from fig. 2 and 5, the expansion core tube assembly 5 includes the left flap plate 51 and the right flap plate 52, and the combination of the left flap plate 51 and the right flap plate 52 is a complete circular tube structure after being clamped on the outer wall of the protruding portion 8, and the insertion fit of the guide rail grooves 41 distributed in a circumferential array is provided through the convex keys 53 of the inner walls of the two flap plates and the outer wall of the protruding portion 8 to achieve the purpose of limiting, so that the left flap plate 51 and the right flap plate 52 are driven to rotate synchronously with the protruding portion 8. And after the installation, the connection relationship is stable and reliable.
Further, as can be seen from fig. 3 and 4, the outer walls of the left flap plate 51 and the right flap plate 52 are respectively provided with a raised vein bar 55, and the spacer 2 is inserted from one end of the back beam shaft 1 opposite to the tenon sleeve 6 and is in threaded connection with the vein bar 55 to cooperate with the tenon sleeve 6 to clamp the inner ring of the first needle bearing 3. Similarly, the second needle bearing 4 is mounted by means of the diamond gasket 7, the diamond gasket 7 is assembled on the back beam shaft 1 in a threaded mode and then stopped by the stop of the boss 8, and the inner ring of the second needle bearing 4 is clamped by the spacer 2.
In summary, the invention also provides an assembly method of the back beam shaft for the air jet loom, which comprises the following assembly steps:
s1, sleeving a boss 8 at a preset position of a back beam shaft 1, and then welding;
s2, soaking the left flap plate 51, the right flap plate 52, the spacer bush 2 and the diamond gasket 7 in liquid nitrogen for 5 seconds;
s3, inserting the left flap plate 51 and the right flap plate 52 from one end of the bulge 8 opposite to the tenon sleeve 6, and inserting the left flap plate 51 and the right flap plate 52 into the clamping cavity 61;
s4, inserting the first needle bearing 3 into the outer walls of the left flap plate 51 and the right flap plate 52, then assembling the spacer bush 2 on the vein strip 55 in a threaded manner, and rotating 3.5 threads;
and S5, inserting the second needle bearing 4 into the outer walls of the left flap plate 51 and the right flap plate 52, and then screwing the diamond gasket 7 on the back beam shaft 1 and stopping the same by being blocked by the bulge part 8.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (3)
1. The back beam shaft for the air jet loom comprises a back beam shaft (1) and is characterized by further comprising a first needle roller bearing (3) and a second needle roller bearing (4) which are symmetrically distributed about the center of a spacer bush (2), a boss (8) is arranged in the middle of the outer wall of the back beam shaft (1), an expansion core pipe assembly (5) is arranged on the boss (8), and the expansion core pipe assembly (5) is used for fixing the spacer bush (2), the first needle roller bearing (3) and the second needle roller bearing (4) on the back beam shaft (1);
a tenon sleeve (6) is arranged at one end of the bulge part (8), the inner wall of the tenon sleeve (6) keeps a preset distance with the outer wall of the bulge part (8) to form a clamping cavity (61), and one end of the expansion core pipe assembly (5) is inserted into the clamping cavity (61);
the outer wall of the protruding portion (8) is provided with guide rail grooves (41) distributed in a circumferential array mode, the expansion core tube assembly (5) comprises a left side flap plate (51) and a right side flap plate (52), the left side flap plate (51) and the right side flap plate (52) cover the outer wall of the protruding portion (8), and convex keys (53) clamped into the guide rail grooves (41) are arranged inside the expansion core tube assembly;
the outer wall of one side, opposite to the left side flap plate (51) and the right side flap plate (52), of the spacer bush (2) is provided with a vein strip (55) in the middle, and the spacer bush (2) is inserted from one end, opposite to the tenon sleeve (6), of the back beam shaft (1) and is in threaded connection with the vein strip (55) so as to be matched with the tenon sleeve (6) to clamp the inner ring of the first needle bearing (3).
2. A back rest axle for an air jet loom according to claim 1, characterized in that a diamond shim (7) secured against the boss (8) is screwed onto the back rest axle (1), the diamond shim (7) being adapted to engage the spacer (2) to clamp the inner race of the second needle bearing (4).
3. A method of assembling a back beam axle for an air jet loom according to claims 1-2, characterized by the steps of:
s1, sleeving a boss (8) at a preset position of a back beam shaft (1), and then welding;
s2, soaking the left flap plate (51), the right flap plate (52), the spacer bush (2) and the diamond gasket (7) in liquid nitrogen for 5s;
s3, inserting the left flap plate (51) and the right flap plate (52) from one end, opposite to one end of the tenon sleeve (6), of the bulge (8), and inserting the left flap plate (51) and the right flap plate (52) into the clamping cavity (61);
s4, inserting the first needle bearing (3) into the outer walls of the left flap plate (51) and the right flap plate (52), then assembling the spacer bush (2) on the vein strip (55) in a threaded mode, and rotating 3.5 threads;
s5, inserting a second needle bearing (4) into the outer walls of the left flap plate (51) and the right flap plate (52), and then screwing a diamond gasket (7) on the back beam shaft (1) and stopping the assembly under the blocking of the bulge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764211.2A CN113463254B (en) | 2021-07-06 | 2021-07-06 | Back beam shaft for air jet loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764211.2A CN113463254B (en) | 2021-07-06 | 2021-07-06 | Back beam shaft for air jet loom |
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| Publication Number | Publication Date |
|---|---|
| CN113463254A CN113463254A (en) | 2021-10-01 |
| CN113463254B true CN113463254B (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110764211.2A Active CN113463254B (en) | 2021-07-06 | 2021-07-06 | Back beam shaft for air jet loom |
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| CN (1) | CN113463254B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211798U (en) * | 1987-08-12 | 1988-03-30 | 泰县桥头农具机械厂 | Spindle collar with needle bearing |
| CN1028178C (en) * | 1991-06-13 | 1995-04-12 | 广野精机有限公司 | Structure improved ribbon loom |
| DE102006010313A1 (en) * | 2006-03-07 | 2007-09-13 | Schaeffler Kg | Ready to install needle roller bearing |
| JP2007305268A (en) * | 2006-05-15 | 2007-11-22 | Nsk Ltd | Bearing unit |
| CN202199621U (en) * | 2011-05-30 | 2012-04-25 | 襄阳振本传动设备有限公司 | High-speed high-precision supporting roller component |
| CN205603783U (en) * | 2016-03-03 | 2016-09-28 | 江门鸿荣新材料科技有限公司 | Two back balance arm of netting machine |
| CN107288996A (en) * | 2016-04-05 | 2017-10-24 | 吴林 | New drawing sleeve joint member needle bearing |
| CN108061095A (en) * | 2016-11-08 | 2018-05-22 | 镇江建华轴承有限公司 | A kind of needle bearing |
| CN107477090A (en) * | 2017-10-12 | 2017-12-15 | 江苏持华轴承有限公司 | needle bearing |
| CN210561026U (en) * | 2019-08-26 | 2020-05-19 | 际华三五四二纺织有限公司 | Back beam movable roller bearing seat for air-jet loom |
| CN112688525B (en) * | 2020-12-16 | 2021-09-28 | 浙江华云信息科技有限公司 | Two-stage voltage-stabilizing power acquisition system |
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2021
- 2021-07-06 CN CN202110764211.2A patent/CN113463254B/en active Active
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| CN113463254A (en) | 2021-10-01 |
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