Shuttle wheel mounting structure and circular loom

Abstract

The invention discloses a shuttle wheel installation structure, which belongs to the field of knitting machinery, solves the problem that the shuttle wheel is inconvenient to replace while adjusting the rotation center of the shuttle wheel in the prior art, and the technical solution to solve the problem mainly includes a bearing, a first eccentric sleeve, a second eccentric sleeve and a fastening bolt, the outer ring of the bearing is fixed to the shuttle wheel, the first eccentric sleeve is located on one side of the shuttle wheel and extends into the inner ring of the bearing for cooperation, the first eccentric sleeve has a first eccentric hole eccentric to the rotation center of the shuttle wheel, the second eccentric sleeve is located on the other side of the shuttle wheel and extends into the inner ring of the bearing for cooperation, the second eccentric sleeve has a second eccentric hole eccentric to the rotation center of the shuttle wheel, the fastening bolt passes through the first eccentric hole and the second eccentric hole and is connected to the shuttle body to fix the first eccentric sleeve and the second eccentric sleeve, and the first eccentric sleeve and the second eccentric sleeve clamp the inner ring of the bearing for positioning. The invention is mainly used to facilitate the assembly and disassembly of the shuttle wheel while adjusting the rotation center of the shuttle wheel.

Description

Technical Field

[0001] The invention relates to a weaving machine, in particular to a shuttle wheel mounting structure and a circular loom using the shuttle wheel mounting structure to mount the shuttle wheel. Background Art

[0002] In the prior art, in order to solve the problem of the shuttle wheel's diameter becoming smaller after wear, it is necessary to adjust the position of the shuttle wheel's rotation center to ensure that the shuttle wheel can maintain rolling cooperation with the upper track of the upper door ring and the lower track of the lower door ring, so that the shuttle can run smoothly. In order to achieve the adjustable rotation center of the shuttle wheel, an eccentric bushing or an eccentric wheel shaft is generally used, such as CN204939747U or CN103046210A, but from the current search results, no specific solution that can be implemented is disclosed. CN201605393U discloses an automatic adjustment device for the clearance of a shuttle wheel, which is mentioned to be mainly composed of a special bolt (1), a passive shuttle wheel (2), an eccentric shaft sleeve (3), an eccentric shaft compression spring (4) and an eccentric shaft base (5), wherein the eccentric shaft sleeve (3) is sleeved on the bare rod of the special bolt (1), an eccentric shaft compression spring (4) is provided between the eccentric shaft sleeve (3) and the special bolt (1), a passive shuttle wheel (2) is provided on the eccentric shaft sleeve (3), an eccentric shaft base (5) sleeved on the special bolt (1) is provided at one end of the eccentric shaft sleeve (3), and the end of the special bolt (1) is threadedly connected to the shuttle. However, in actual application, it should be noted that the shuttle speed of a four-shuttle circular loom reaches 200r / min, the diameter of the gate track is generally 1 meter, the machine generally runs more than 20 hours a day, and the outer diameter of the shuttle wheel is about 50mm, which is equivalent to each shuttle wheel running 700-800 kilometers a day and rotating 4.8 million times. The special bolt (1) will move relative to the eccentric sleeve (3), which is fatal to the installation and fixation of the shuttle wheel. In addition, the shuttle wheel is a consumable part and needs to be easy to replace so as not to have a significant impact on production efficiency. Summary of the invention

[0003] One of the purposes to be achieved by the present invention is to provide a shuttle wheel installation structure, which facilitates the installation and disassembly of the shuttle wheel while achieving the adjustment of the rotation center of the shuttle wheel.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a shuttle wheel installation structure, including a bearing, a first eccentric sleeve, a second eccentric sleeve and a fastening bolt, the outer ring of the bearing is fixed to the shuttle wheel, the first eccentric sleeve is located on one side of the shuttle wheel and extends into the inner ring of the bearing for cooperation, the first eccentric sleeve has a first eccentric hole eccentric to the rotation center of the shuttle wheel, the second eccentric sleeve is located on the other side of the shuttle wheel and extends into the inner ring of the bearing for cooperation, the second eccentric sleeve has a second eccentric hole eccentric to the rotation center of the shuttle wheel, the fastening bolt passes through the first eccentric hole and the second eccentric hole to connect with the shuttle body to fix the first eccentric sleeve and the second eccentric sleeve, and the first eccentric sleeve and the second eccentric sleeve clamp the inner ring of the bearing in position.

[0005] Furthermore, a first positioning step is provided on the outer periphery of the first eccentric sleeve, and the first positioning step abuts against one side of the inner ring of the bearing to position it; or, a first positioning retaining spring is provided on the outer periphery of the first eccentric sleeve, and the first positioning retaining spring abuts against one side of the inner ring of the bearing to position it.

[0006] Furthermore, a second positioning step is provided on the outer periphery of the second eccentric sleeve, and the second positioning step abuts against the other side of the inner ring of the bearing to position it; or, a second positioning retaining spring is provided on the outer periphery of the second eccentric sleeve, and the second positioning retaining spring abuts against the other side of the inner ring of the bearing to position it.

[0007] Furthermore, the first eccentric sleeve is positioned against the shuttle body, and the second eccentric sleeve is provided with an adjustment head for conveniently adjusting the eccentric angle, and the adjustment head is located outside the shuttle wheel.

[0008] Furthermore, the outer peripheral side of the adjustment head is provided with an operating plane for workers to easily engage the position; or, the end face of the adjustment head is provided with a recessed groove for accommodating the head of the fastening bolt, and the inner peripheral side of the recessed groove is provided with an operating plane for workers to easily engage the position.

[0009] Furthermore, a second dust cover is provided on the outer periphery of the second eccentric sleeve, the second dust cover is fixed to the second eccentric sleeve or is integrally formed with the second eccentric sleeve, and the outer periphery of the second dust cover cooperates with the inner ring of the shuttle wheel.

[0010] Furthermore, a first dust cover is provided on the outer periphery of the first eccentric sleeve, the first dust cover is fixed to the first eccentric sleeve or is integrally formed with the first eccentric sleeve, and the outer periphery of the first dust cover cooperates with the inner ring of the shuttle wheel.

[0011] Furthermore, there is a gap between the first eccentric sleeve and the second eccentric sleeve in the inner ring of the bearing.

[0012] Furthermore, the first eccentric sleeve and the second eccentric sleeve are metal parts with good heat dissipation effect.

[0013] In addition, the present invention also provides a circular loom, including a frame, an upper door ring, a lower door ring and a shuttle, the upper door ring and the lower door ring are installed on the frame, the upper door ring is provided with an upper track, the lower door ring is provided with a lower track, and the shuttle is provided with a shuttle wheel that rolls on the upper track and the lower track respectively, and the shuttle wheel is installed using the above-mentioned shuttle wheel installation structure.

[0014] After adopting the above technical solution, the present invention has the following advantages: the inner ring of the bearing is clamped and positioned by using the first eccentric sleeve and the second eccentric sleeve. Since the first eccentric sleeve and the second eccentric sleeve are both assembled with a part of the inner ring of the bearing, under the requirement of interference fit, the length of the first eccentric sleeve and the second eccentric sleeve in contact with the inner ring of the bearing is relatively short, which can reduce the difficulty of assembly and disassembly. Since the length of the part of the first eccentric sleeve and the second eccentric sleeve extending into the inner ring of the bearing is relatively short and has high strength, the stability of the bearing fixation is also guaranteed, and the stability of the long-term rotation of the shuttle wheel is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0017] Figure 2 is a schematic diagram of a first eccentric sleeve in Embodiment 1 of the present invention;

[0018] Figure 3 is a schematic diagram of a second eccentric sleeve in Embodiment 1 of the present invention;

[0019] Figure 4 Schematic diagram of the second eccentric sleeve in Embodiment 1 of the present invention (adjustment head variation 1);

[0020] Figure 5 Schematic diagram of the second eccentric sleeve in Embodiment 1 of the present invention (adjustment head variation 2);

[0021] Figure 6 Schematic diagram of the axial positioning of the outer ring of the bearing in Embodiment 1 of the present invention (Variation 1);

[0022] Figure 7 It is a schematic diagram of the axial positioning of the outer ring of the bearing in the first embodiment of the present invention (variation 2). DETAILED DESCRIPTION

[0023] Embodiment 1:

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the present invention provides a shuttle wheel installation structure, including a bearing 1, a first eccentric sleeve 2, a second eccentric sleeve 3 and a fastening bolt 4, the outer ring 12 of the bearing 1 is fixed to the shuttle wheel 9, the first eccentric sleeve 2 is located on one side of the shuttle wheel 9 and extends into the inner ring 11 of the bearing 1 for cooperation, the first eccentric sleeve 2 has a first eccentric hole 21 eccentric to the rotation center of the shuttle wheel 9, the second eccentric sleeve 3 is located on the other side of the shuttle wheel 9 and extends into the inner ring 11 of the bearing 1 for cooperation, the second eccentric sleeve 3 has a second eccentric hole 31 eccentric to the rotation center of the shuttle wheel 9, the fastening bolt 4 passes through the first eccentric hole 21 and the second eccentric hole 31 to connect with the shuttle body 8 to fix the first eccentric sleeve 2 and the second eccentric sleeve 3, and the first eccentric sleeve 2 and the second eccentric sleeve 3 clamp the inner ring 11 of the bearing 1 in position.

[0025] The inner ring of the bearing 1 is clamped and positioned by the first eccentric sleeve 2 and the second eccentric sleeve 3. Since the first eccentric sleeve 2 and the second eccentric sleeve 3 are both assembled with a part of the inner ring of the bearing 1, under the requirement of transition fit, the length of the first eccentric sleeve 2 and the second eccentric sleeve 3 in contact with the inner ring of the bearing 1 is relatively short, which can reduce the difficulty of assembly and disassembly. Since the length of the part of the first eccentric sleeve 2 and the second eccentric sleeve 3 extending into the inner ring of the bearing 1 is relatively short and has high strength, the stability of the fixing of the bearing 1 is also guaranteed, and the stability of the long-term rotation of the shuttle wheel 9 is guaranteed.

[0026] In order to axially position the inner ring of the bearing 1, a first positioning step 22 may be provided on the outer periphery of the first eccentric sleeve 2, and the first positioning step 22 abuts against one side of the inner ring of the bearing 1 to position it. The first positioning step 22 may be directly machined on the first eccentric sleeve 2, or may be formed by arranging a sleeve on the outer periphery of the first eccentric sleeve. In addition, a first positioning retaining spring may be provided on the outer periphery of the first eccentric sleeve 2, and the first positioning retaining spring abuts against one side of the inner ring of the bearing 1 to position it. Similarly, a second positioning step 32 may be provided on the outer periphery of the second eccentric sleeve 3, and the second positioning step 32 abuts against the other side of the inner ring of the bearing 1 to position it. The second positioning step 32 may be directly machined on the second eccentric sleeve 3, or may be formed by arranging a sleeve on the outer periphery of the second eccentric sleeve. In addition, a second positioning retaining spring may be provided on the outer periphery of the second eccentric sleeve 3, and the second positioning retaining spring abuts against the other side of the inner ring of the bearing 1 to position it. In this way, the first eccentric sleeve 2 and the second eccentric sleeve 3 clamp the inner ring of the bearing 1 in position, and the bearing 1 and the first eccentric sleeve 2 and the second eccentric sleeve 3 form a whole, which makes it more efficient when replacing the shuttle wheel 9.

[0027] In this embodiment, in order to distinguish the first eccentric sleeve 2 from the second eccentric sleeve 3, the first eccentric sleeve 2 is close to the shuttle body 8. In order to position the shuttle wheel 9, the first eccentric sleeve 2 can be positioned against the shuttle body 8, and the contact area between the two is large enough, and the positioning effect is good. The second eccentric sleeve 3 is provided with an adjustment head 33 for conveniently adjusting the eccentric angle. The adjustment head 33 is located outside the shuttle wheel 9. When the rotation center of the shuttle wheel needs to be adjusted, the fastening bolt 4 is loosened and the adjustment head 33 is rotated. The provision of the adjustment head 33 can also facilitate the separation of the second eccentric sleeve 3 from the bearing 1, and the second eccentric sleeve 3 can be directly pulled out.

[0028] In order to ensure the accuracy of adjusting the angle, an operating plane 331 for workers to conveniently position the adjusting head 33 may be provided on the outer peripheral side. Considering the use of a wrench or fingers, the operating plane 331 generally includes two opposite planes, such as Figure 3 The outer side of the outer hexagonal column in Figure 4 The outer side of the tetrahedron, Figure 5 In order to reduce the length of the fastening bolt 4, a recessed groove 332 for accommodating the head of the fastening bolt can be provided on the end surface of the adjusting head 33. In addition to providing an operating plane 331 on the outer periphery of the adjusting head 33, an operating plane 331 can also be provided on the inner periphery of the recessed groove to facilitate workers to position.

[0029] Since the circular loom produces a lot of dust, it will have an adverse effect on the life of the bearing 1. In order to reduce this effect, since the second eccentric sleeve 3 is located far away from the shuttle body 8, dust is more likely to enter the inner ring of the shuttle wheel 9 from this side and accumulate on the bearing 1. Therefore, a second dust cover 34 can be provided on the outer periphery of the second eccentric sleeve 3. The second dust cover 34 is integrally formed with the second eccentric sleeve 3 to eliminate the need for assembly. Since the shuttle wheel 9 rotates and the second eccentric sleeve 3 is fixed, the outer periphery of the second dust cover 34 and the inner ring of the shuttle wheel 9 are preferably matched with clearance. It can be understood that the second dust cover 34 can also be processed separately and then installed and fixed to the second eccentric sleeve 3.

[0030] In order to further improve the dustproof effect, a first dust cover 23 can be provided on the outer periphery of the first eccentric sleeve 2. The first dust cover 23 is integrally formed with the first eccentric sleeve 2. The outer periphery of the first dust cover 23 is matched with the inner ring of the shuttle wheel 9, preferably with clearance. In addition, the first dust cover 23 can also be processed separately and then installed and fixed to the first eccentric sleeve 2.

[0031] Since the shuttle wheel 9 generates a lot of heat when rotating for a long time, in order to prevent the first eccentric sleeve 2 and the second eccentric sleeve 3 from squeezing each other after expansion and affecting the reliability of bolt fixing, a gap 100 is provided between the first eccentric sleeve 2 and the second eccentric sleeve 3 in the inner ring of the bearing 1. In this way, an assembly dimension chain is reduced, and the machining accuracy requirements of the end faces of the first eccentric sleeve 2 and the second eccentric sleeve 3 extending into the inner ring of the bearing 1 can also be reduced.

[0032] Considering the heat dissipation effect, the first eccentric sleeve 2 and the second eccentric sleeve 3 can be designed to be metal parts with good heat dissipation effect, such as common metals such as aluminum or its alloy, copper or its alloy, which is also helpful for improving the service life of the shuttle wheel 9 and the bearing 1.

[0033] The shuttle wheel 9 generally includes a colloid 91 and a steel ring 92. The colloid can also be directly injected onto the outer ring of the bearing. Therefore, the axial positioning of the outer ring 12 of the bearing 1 relative to the shuttle wheel can be carried out in a variety of ways, such as Figure 1 As shown, the colloid 91 is directly injected onto the outer ring 12 of the bearing 1, and the axial positioning of the outer ring of the bearing 1 and the colloid 91 does not need to be considered. Figure 6 As shown, the outer ring 12 of the bearing 1 is axially positioned by fixing the retaining spring 5 on the inner side of the steel ring 92 of the shuttle wheel 9. Figure 7 As shown, a positioning step 921 is provided on one end of the inner circumferential side surface of the steel ring 92 of the shuttle wheel 9 close to the shuttle body 8, and a retaining spring 5 is used at the other end to axially position the outer ring 12 of the bearing 1.

[0034] Embodiment 2:

[0035] The present invention also provides a circular loom, comprising a frame, an upper door ring, a lower door ring and a shuttle, wherein the upper door ring and the lower door ring are mounted on the frame, the upper door ring is provided with an upper track, the lower door ring is provided with a lower track, the shuttle is provided with a shuttle wheel rollingly matched on the upper track and the lower track respectively, and the shuttle wheel is installed using the shuttle wheel mounting structure in the above embodiment. The shuttle wheel uses the first eccentric sleeve and the second eccentric sleeve to adjust the rotation center, thereby increasing the service life, ensuring the stability of the shuttle for a long time, reducing the number of times the shuttle wheel is replaced, reducing the production cost of the enterprise, and improving the production efficiency.

[0036] For other contents not described in this embodiment, please refer to Embodiment 1.

[0037] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art may make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A shuttle wheel installation structure, characterized in that: The invention comprises a bearing, a first eccentric sleeve, a second eccentric sleeve and a fastening bolt, wherein the outer ring of the bearing is fixed to the shuttle wheel, the first eccentric sleeve is located on one side of the shuttle wheel and extends into the inner ring of the bearing for cooperation, the first eccentric sleeve has a first eccentric hole eccentric to the rotation center of the shuttle wheel, the second eccentric sleeve is located on the other side of the shuttle wheel and extends into the inner ring of the bearing for cooperation, the second eccentric sleeve has a second eccentric hole eccentric to the rotation center of the shuttle wheel, the fastening bolt passes through the first eccentric hole and the second eccentric hole and is connected to the shuttle body to fix the first eccentric sleeve and the second eccentric sleeve, and the first eccentric sleeve and the second eccentric sleeve are fixed. The sleeve clamps the inner ring of the bearing in position; the outer periphery of the first eccentric sleeve is provided with a first positioning step, and the first positioning step is against one side of the inner ring of the bearing to position it; or, the outer periphery of the first eccentric sleeve is provided with a first positioning retaining spring, and the first positioning retaining spring is against one side of the inner ring of the bearing to position it; the outer periphery of the second eccentric sleeve is provided with a second positioning step, and the second positioning step is against the other side of the inner ring of the bearing to position it; or, the outer periphery of the second eccentric sleeve is provided with a second positioning retaining spring, and the second positioning retaining spring is against the other side of the inner ring of the bearing to position it; the first eccentric sleeve is against the shuttle body for positioning, and the second eccentric sleeve is provided with an adjustment head for conveniently adjusting the eccentric angle, and the adjustment head is located outside the shuttle wheel; the outer peripheral side surface of the adjustment head is provided with an operating plane for convenient positioning of workers; or, the end surface of the adjustment head is provided with a recessed groove for accommodating the head of the fastening bolt, and the inner peripheral side surface of the recessed groove is provided with an operating plane for convenient positioning of workers; the outer periphery of the second eccentric sleeve is provided with a second dust cover, and the second dust cover is installed and fixed on the second eccentric sleeve or is integrally formed with the second eccentric sleeve, and the outer periphery of the second dust cover cooperates with the inner ring of the shuttle wheel; A first dust cover is provided on the outer periphery of the first eccentric sleeve, and the first dust cover is installed and fixed on the first eccentric sleeve or is integrally formed with the first eccentric sleeve, and the outer periphery of the first dust cover cooperates with the inner ring of the shuttle wheel; there is a gap between the first eccentric sleeve and the second eccentric sleeve in the inner ring of the bearing; the first eccentric sleeve and the second eccentric sleeve are metal parts with good heat dissipation effect, and when it is necessary to adjust the rotation center of the shuttle wheel, loosen the fastening bolts and rotate the adjustment head; under the requirement of transition fit, the length of contact between the first eccentric sleeve and the second eccentric sleeve and the inner ring of the bearing is relatively short.

2. A circular loom, comprising a frame, an upper door ring, a lower door ring and a shuttle, wherein the upper door ring and the lower door ring are mounted on the frame, the upper door ring is provided with an upper track, the lower door ring is provided with a lower track, and the shuttle is provided with a shuttle wheel respectively rolling on the upper track and the lower track, characterized in that: The shuttle wheel is installed using the shuttle wheel installation structure described in claim 1.

Images