Connecting structure of roller

Abstract

According to the connecting structure of the roller, the roller is formed by connecting a plurality of roller rods in series through couplings, and bearing seats are installed at the two ends of each roller rod; the coupler is a cross-shaped sliding block coupler and is composed of a left connecting half body, a cross-shaped sliding block and a right connecting half body. Key grooves correspondingly connected with the left connecting half body and the right connecting half body are formed in the two ends of the roller rod respectively, the directions of the two key grooves are the same, and the directions of the key grooves and the installation angle of the cross-shaped sliding block have a determined corresponding relation. The connecting structure of the roller at least solves the two problems that firstly, under the condition that the roller rods cannot be coaxial, the problem that the roller rods are frequently broken due to bouncing force is solved; and secondly, each roller rod can be replaced independently, and other roller rods do not need to be disassembled, so that time and labor are saved. According to the roller adopting the connecting structure, the limit rotating speed can be increased to 1200 rpm from 700 rpm recognized in the industry, the problem of'pain point 'restricting the development of the textile industry is solved, and the production efficiency of a textile machine is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a roller connection structure. Background Art

[0002] Rollers refer to the rolling long or short axes that press down the yarn or fiber. According to the installation position of the rollers on the spinning machine, they can be divided into front rollers, middle rollers, back rollers, top rollers, bottom rollers, drafting rollers, etc. Rollers can be long or short. Taking the glass fiber twisting machine as an example, in order to increase the ingot loading capacity of a single machine, the bottom roller of the existing glass fiber twisting machine is very long, usually 10-15 meters. In order to reduce the amount of roller beating during rotation and prevent the occurrence of wire breakage, the existing rollers are composed of multiple roller rods connected in series through couplings, and bearing seats are supported at both ends of each roller rod.

[0003] Despite this, the problem of roller breakage still occurs during production. The main reason is that it is difficult to achieve coaxial connection between the roller rods, which causes "stuckness" when rotating, resulting in roller rod breakage. Therefore, if the coaxiality of the roller rods cannot be guaranteed, at least the "stuckness" problem caused by the connection of the roller rods should be solved.

[0004] In addition, the existing roller connection structure is inconvenient to disassemble and assemble. For example, when a roller rod is broken, all roller rods at one end need to be disassembled first, which is time-consuming, labor-intensive and very inconvenient. Utility Model Content

[0005] In order to overcome the shortcomings of the background technology, the utility model discloses a roller connection structure, and the roller connection structure adopts the following technical solution:

[0006] A roller connection structure, the roller is formed by multiple roller rods connected in series through a coupling, and bearing seats are installed at both ends of each roller rod; the coupling is a cross slider coupling, which consists of a left connecting half, a cross slider and a right connecting half; key slots corresponding to the left connecting half and the right connecting half are respectively provided at both ends of the roller rod, the two key slots are oriented in the same direction, and the direction of the key slot has a certain corresponding relationship with the installation angle of the cross slider.

[0007] After implementing the above technical solution, the beneficial effects are:

[0008] 1. The cross slider in the cross slider coupling can slide between the left connecting half and the right connecting half to eliminate the bending moment caused by the different axes. Even if the two roller rods are not on the same axis, the cross slider coupling can smoothly transmit the torque, so that the roller rods are no longer "stuck".

[0009] 2. The two keyways on the same roller rod have the same orientation, and the orientation of the keyway corresponds to the installation angle of the cross slide. When replacing the roller rod, you only need to remove the fixing bolts on the bearing seats at both ends of the roller rod, and then you can remove the roller rod and the bearing seat as a whole. Since there is no need to remove other roller rods, it saves time and effort and is very convenient.

[0010] To further improve the technical solution, the roller rod comprises a rod body, support shafts are coaxially arranged at both ends of the rod body, and the diameter of the support shaft is smaller than the diameter of the rod body; the keyway is arranged on the support shaft, and the bearing seat is installed on the support shaft.

[0011] After the above technical solution is implemented, the beneficial effects are as follows: the support shaft can be provided to reduce the volume, and a small-sized bearing seat and cross-slider coupling can be selected.

[0012] To further improve the technical solution, a retaining ring is provided between the bearing seat and the rod body, and the retaining ring is used to prevent the yarn from being entangled in the bearing seat.

[0013] After the above technical solution is implemented, the beneficial effect produced is that the yarn will be entangled in the bearing seat and damage the bearing, and the retaining ring can be provided to prevent the yarn from being entangled in the bearing seat.

[0014] To further improve the technical solution, threaded holes and top screws are respectively provided on the left connecting half body and the right connecting half body. The top screws are screwed into the threaded holes and are used to radially tighten the roller rods.

[0015] After the above technical solution is implemented, the beneficial effect is that the top screw is used to press the left connecting half and the right connecting half onto the roller rod to prevent the left connecting half and the right connecting half from axial movement.

[0016] To further improve the technical solution, a shield is provided on the outside of the cross slider coupling, and the shield is fixed on the bearing seat.

[0017] After the above technical solution is implemented, the beneficial effect produced is: the function of the protective cover is to prevent external dust and waste yarn from entering into the Oldham coupling and damaging the Oldham coupling.

[0018] To further improve the technical solution, the cross slider is made of nylon or tetrafluoroethylene.

[0019] After the above technical solution is implemented, the beneficial effects produced are: nylon and tetrafluoroethylene materials both have certain strength, toughness and low friction, which can reduce impact and improve the durability of the cross slider.

[0020] To further improve the technical solution, the cross slider is composed of a left slider body and a right slider body that are detachably connected, the left slider body is provided with a transverse slide groove corresponding to the transverse protrusion of the left connecting half body, and the right slider body is provided with a longitudinal slide groove corresponding to the longitudinal protrusion of the right connecting half body.

[0021] After implementing the above technical solution, the beneficial effect is that if the cross slider coupling is damaged, there is no need to remove the roller rod, only the cross slider needs to be removed, and the entire cross slider coupling can be removed, which is convenient for maintenance.

[0022] To further improve the technical solution, flanges are provided on the left slider body and the right slider body, and the left slider body and the right slider body are connected by the flanges and screws.

[0023] After the above technical solution is implemented, the beneficial effect produced is that the connection structure of the flange can quickly realize the connection between the left slider body and the right slider body.

[0024] To further improve the technical solution, the right slider body has a left end face and a right end face, and the longitudinal slide groove is arranged on the right end face of the right slider body; a protruding dovetail block is provided on the left end face of the right slider body, and the setting direction of the dovetail block is consistent with the setting direction of the longitudinal slide groove; a dovetail groove matching the dovetail block is provided on the left slider body, and the left slider body and the right slider body are connected by the dovetail block and the dovetail groove.

[0025] After the above technical solution is implemented, the beneficial effect produced is that the connection structure between the dovetail block and the dovetail groove can be quickly connected.

[0026] To further improve the technical solution, a top screw is provided on the dovetail groove, and the top screw is used to tighten the dovetail block.

[0027] After the above technical solution is implemented, the beneficial effect produced is: the function of the top screw is to connect the left slider body and the right slider body into one body, and prevent the dovetail block from sliding out of the dovetail groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attached Figure 1 What is shown is the overall structural schematic diagram of this roller.

[0029] Attached Figure 2 Shown is a schematic structural diagram of a roller rod.

[0030] Attached Figure 3 What is shown is a schematic structural diagram of the cross slider in Example 1.

[0031] Attached Figure 4 Shown is a schematic diagram of the connection between the roller rod and the left-side cross slider coupling.

[0032] Attached Figure 5Shown is a schematic diagram of the connection between the roller rod and the right-hand cross slider coupling.

[0033] Attached Figure 6 Shown is a schematic structural diagram of the roller rod being disassembled as a whole.

[0034] Attached Figure 7 Shown is a schematic diagram of the installation structure of the retaining ring and the top screw.

[0035] Attached Figure 8 Shown is a schematic diagram of the installation structure of the shield.

[0036] Attached Fig. 9 What is shown is a schematic structural diagram of the split cross slider in Example 2.

[0037] Attached Fig.10 What is shown is a schematic structural diagram of the split cross slider in Example 3.

[0038] Attached photos

[0039] 1. Roller rod; 11. Rod body; 12. Support shaft; 13. Keyway;

[0040] 2. Cross slider coupling; 21. Left connecting half; 211. lateral projection; 22. Cross slider; 221. lateral slide; 222. longitudinal slide; 23. Right connecting half; 231. longitudinal projection; 24. Split cross slider; 241. Left slider body; 2411. dovetail groove; 242. Right slider body; 2421. dovetail block;

[0041] 3. Bearing seat;

[0042] 4. Retaining ring;

[0043] 5. Top screw;

[0044] 6. Protective shield. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. It should be noted that in the description of the present invention, the terms "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] Example 1: Refer to the attached Figure 1 Attached Figure 1 The figure shows a roller connection structure, which is composed of a plurality of roller rods 1 connected in series via a coupling, and a bearing seat 3 is installed at both ends of each roller rod 1.

[0047] Refer to the attached Figure 2 The roller rod 1 comprises a rod body 11, and support shafts 12 are coaxially arranged at both ends of the rod body 11, and the diameter of the support shaft 12 is smaller than the diameter of the rod body 11. A key groove 13 is arranged on the support shaft 12, and the two key grooves 13 are oriented in the same direction.

[0048] Refer to the attached Figure 3 . Unlike conventional couplings, the coupling used in this roller is a cross slider coupling 2. The cross slider coupling 2 is composed of a left connecting half 21, a cross slider 22 and a right connecting half 23. A transverse protrusion 211 is provided on the left connecting half 21, and a longitudinal protrusion 231 is provided on the right connecting half 23. The left connecting half 21 and the right connecting half 23 are respectively installed on the support shafts 12 of two adjacent roller rods 1 through flat keys. A transverse slide 221 corresponding to the transverse protrusion 211 on the left connecting half 21 is provided at the left end of the cross slider 22, and a longitudinal slide 222 corresponding to the longitudinal protrusion 231 on the right connecting half 23 is provided at the right end of the cross slider 22. It is worth noting that the "transverse" and "longitudinal" here are only static descriptions based on the direction or position relationship shown in the accompanying drawings, and do not imply that the protrusion or slide must have a specific orientation.

[0049] When in use, the cross slide 22 can slide between the left connecting half 21 and the right connecting half 23 to eliminate the bending moment caused by the misalignment. Even if the two roller rods 1 are not coaxial, the cross slide coupling 2 can smoothly transmit torque, so that the roller rod 1 is no longer "stuck".

[0050] In this embodiment, the cross slide block 22 can be made of nylon material or tetrafluoroethylene material. Both nylon and tetrafluoroethylene materials have certain strength, toughness and low friction, which can reduce impact and improve the durability of the cross slide block 22.

[0051] Practice has proved that during the use of this roller for more than a year, no roller rod breakage accident occurred. More importantly, the industry-recognized maximum roller speed is 700 rpm, while the maximum speed of the roller using this connection structure has been increased to 1200 rpm, solving the "pain point" problem that restricts the development of the textile industry and greatly improving production efficiency.

[0052] See attached Figure 4 and attached Figure 5 The orientation of the key slots 13 at both ends of the roller rod 1 has a certain corresponding relationship with the installation angle of the cross slide 22 .

[0053] Attached Figure 4 In the embodiment, the keyway 13 at the left end of the roller rod 1 is oriented at a 90° angle to the direction in which the longitudinal slideway 222 of the cross slide 22 is arranged. Figure 5 In the figure, the key groove 13 at the right end of the roller rod 1 is oriented in a direction which forms an angle of 90° with the setting direction of the longitudinal groove 222 of the cross slide block 22 .

[0054] See attached Figure 6 In this way, when replacing the roller rod 1, it is only necessary to remove the fixing bolts on the bearing seats 3 at both ends of the roller rod 1, and the roller rod 1 and the bearing seat 3 can be removed as a whole in the horizontal direction. The whole process does not require the removal of other roller rods, which saves time and effort and is very convenient.

[0055] It is worth noting that the orientation of the key slot 13 and the setting direction of the transverse slide slot 221 are not limited to an angle of 90°, and can also be an angle of 30°, 60°, etc., as long as the corresponding relationship of the same angle or the same position is satisfied.

[0056] See attached Figure 7 To further improve the technical solution, a retaining ring 4 made of nylon material is provided between the bearing seat 3 and the rod body of the roller rod 1. The yarn winding into the bearing seat 3 will damage the bearing, and the retaining ring 4 can prevent the yarn from winding into the bearing seat 3.

[0057] In addition, a threaded hole and a top screw 5 are respectively provided on the left connecting half body 21 and the right connecting half body 23, and the top screw 5 is screwed into the threaded hole. The function of the top screw 5 is to press the left connecting half body 21 and the right connecting half body 23 against the roller rod 1 to prevent the left connecting half body 21 and the right connecting half body 23 from axial movement.

[0058] Refer to the attached Figure 8 A shield 6 may also be fixed on the bearing seat 3 , and the shield 6 is used to prevent external dust and waste yarn from entering the Oldham coupling 2 and damaging the Oldham coupling 2 .

[0059] Example 2: Refer to the attached Fig. 9 The difference from the first embodiment is that the cross slider is a split cross slider 24 , which is formed by a left slider body 241 and a right slider body 242 that are detachably connected.

[0060] Specifically, a transverse slide groove 221 corresponding to the transverse protrusion of the left connecting half body is provided on the left slider body 241, and a longitudinal slide groove 222 corresponding to the longitudinal protrusion of the right connecting half body is provided on the right slider body 242. Flanges are provided on the left slider body 241 and the right slider body 242, and the left slider body 241 and the right slider body 242 are connected by flanges and screws.

[0061] The flange connection structure can quickly connect the left slider body 241 and the right slider body 242. If the cross slider coupling 2 is damaged, it is not necessary to remove the roller rod 1. It is only necessary to remove the left slider body 241 and the right slider body 242, and then remove the left connecting half body 21 and the right connecting half body 23 after leaving space. Obviously, this connection structure is convenient for replacing the cross slider coupling 2.

[0062] Example 3: Refer to the attached Fig.10 Different from the second embodiment, the right slider body 242 in the split cross slider 24 has a left end face and a right end face, and the longitudinal slide groove 222 is arranged on the right end face of the right slider body 242. A protruding dovetail block 2421 is arranged on the left end face of the right slider body 242, and the setting direction of the dovetail block 2421 is consistent with the setting direction of the longitudinal slide groove 222. A dovetail groove 2411 matching with the dovetail block 2421 is arranged on the left slider body 241, and the left slider body 241 and the right slider body 242 are connected by the dovetail block 2421 and the dovetail groove 2411.

[0063] In addition, a top screw 5 is provided on the dovetail groove 2411 , and the function of the top screw 5 is to connect the left slider body 241 and the right slider body 242 into one body, so as to prevent the dovetail block 2421 from sliding out of the dovetail groove 2411 .

[0064] When replacing the cross slider coupling, loosen the top screw 5, and then pull the right slider body 242 out of the left slider body 241. First remove the split cross slider 24 to leave space, and then remove the left connecting half 21 and the right connecting half 23. When installing the cross slider coupling, perform the reverse operation.

[0065] It can be seen from the above embodiments that the connection structure of the roller solves at least three problems. First, when the coaxiality of the roller rods cannot be guaranteed, the problem of frequent breakage of the roller rods due to "stuckness" is solved; second, each roller rod can be replaced individually without removing other roller rods, which saves time and effort and is highly efficient; third, each cross slider coupling can be replaced independently without removing the roller rods, which is very convenient.

[0066] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A roller connection structure, wherein the roller is formed by connecting a plurality of roller rods in series through a coupling, and bearing seats are installed at both ends of each roller rod, wherein: The coupling is a cross slider coupling, which consists of a left connecting half, a cross slider and a right connecting half; key slots corresponding to the left connecting half and the right connecting half are respectively provided at both ends of the roller rod, the two key slots have the same direction, and the direction of the key slot has a certain corresponding relationship with the installation angle of the cross slider.

2. A roller connection structure according to claim 1, characterized in that: The roller rod comprises a rod body, and support shafts are coaxially arranged at both ends of the rod body, and the diameter of the support shaft is smaller than the diameter of the rod body; the key groove is arranged on the support shaft, and the bearing seat is installed on the support shaft.

3. A roller connection structure as claimed in claim 2, characterized in that: A retaining ring is arranged between the bearing seat and the rod body, and the retaining ring is used to prevent the yarn from being entangled in the bearing seat.

4. The roller connection structure according to claim 1, characterized in that: A threaded hole and a top screw are respectively arranged on the left connecting half body and the right connecting half body. The top screw is screwed into the threaded hole and is used for radially tightening the roller rod.

5. The roller connection structure according to claim 1, characterized in that: A protective cover is arranged on the outside of the cross slide coupling, and the protective cover is fixed on the bearing seat.

6. The roller connection structure according to claim 1, characterized in that: The cross slide is made of nylon or tetrafluoroethylene.

7. The roller connection structure according to claim 1, characterized in that: The cross slider is formed by a detachably connected left slider body and a right slider body. The left slider body is provided with a transverse slide groove corresponding to the transverse protrusion of the left connecting half body, and the right slider body is provided with a longitudinal slide groove corresponding to the longitudinal protrusion of the right connecting half body.

8. A roller connection structure according to claim 7, characterized in that: Flange plates are arranged on the left slider body and the right slider body, and the left slider body and the right slider body are connected by the flange plates and screws.

9. The roller connection structure according to claim 7, characterized in that: The right slider body has a left end face and a right end face, and the longitudinal slide groove is arranged on the right end face of the right slider body; a protruding dovetail block is arranged on the left end face of the right slider body, and the setting direction of the dovetail block is consistent with the setting direction of the longitudinal slide groove; a dovetail groove matching the dovetail block is arranged on the left slider body, and the left slider body and the right slider body are connected by the dovetail block and the dovetail groove.

10. A roller connection structure according to claim 9, characterized in that: A top screw is provided on the dovetail groove, and the top screw is used to tighten the dovetail block.

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