Shaft connecting structure of edge roller

Abstract

The utility model discloses a shaft connecting structure of an edge roller. The shaft connecting structure comprises an edge roller main shaft, a gear shaft, a limiting connecting ring and a locking nut, the gear shaft comprises a shaft sleeve and a plurality of gears evenly fixed to the outer circumferential wall of the shaft sleeve in the circumferential direction. The edge roller main shaft comprises a first shaft section, a second shaft section and a third shaft section which are connected in sequence, and the diameters of the first shaft section, the second shaft section and the third shaft section are reduced in sequence; an external thread matched with the locking nut is arranged on the peripheral wall of one end, far away from the second shaft section, of the third shaft section; the locking nut, the limiting connecting ring and the gear shaft are sequentially arranged on the third shaft section in a sleeving mode in the direction from the third shaft section to the first shaft section, the locking nut is in threaded connection with the external thread, and the locking nut, the limiting connecting ring, the shaft sleeve and the second shaft section abut against one another in sequence. According to the utility model, the disassembly difficulty of an old machine can be reduced to a certain extent, and the reconditioning difficulty of the edge roller is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glass edge drawing machines, in particular to a shaft connection structure of an edge drawing machine. Background Art

[0002] Domestic liquid crystal glass substrates are mainly produced by the overflow method and the down-drawing method. The edge drawing machine is an important process equipment in the production and molding process of liquid crystal glass. The edge drawing shafts rotate in pairs to pull the glass ribbon, so that the positions on both sides of the glass ribbon clamped by the edge drawing shafts are cooled and shaped to form a glass ribbon with a fixed width.

[0003] The mainstream drive connection method of the edge drawing machine shaft is to install the edge drawing shaft on the gear shaft, and then the gear shaft is connected to the drive motor through the idler or gear for reversing and speed change. Among them, since the same-side edge drawing machine requires two shafts to rotate in opposite directions to achieve clamping, after the edge drawing shaft is installed on the gear shaft, there are certain requirements for the assembly accuracy and pre-tightening clamping force of the two shafts.

[0004] At present, the edge drawing machine mainly adopts the method of achieving assembly accuracy by limiting the shaft hole tolerance of the edge drawing shaft and the gear shaft. However, when the old shaft is dismantled, this installation method makes it extremely difficult to remove the shaft from the gear shaft due to high temperature, material deformation and workpiece contamination. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a shaft connection structure of a side drawing machine.

[0006] The utility model provides a side drawing machine shaft connection structure, comprising: a side drawing machine main shaft, a gear shaft, a limit connection ring and a locking nut;

[0007] The gear shaft includes a shaft sleeve and a plurality of gears uniformly fixed on the outer peripheral wall of the shaft sleeve along the circumferential direction;

[0008] The main shaft of the edge drawing machine includes a first shaft section, a second shaft section and a third shaft section which are connected in sequence, and the diameters of the first shaft section, the second shaft section and the third shaft section decrease in sequence; an outer peripheral wall of an end of the third shaft section away from the second shaft section is provided with an external thread matching a locking nut;

[0009] The locking nut, the limiting connecting ring and the gear shaft are sequentially sleeved on the third shaft segment from the third shaft segment to the first shaft segment, the locking nut is threadedly connected to the external thread, and the locking nut, the limiting connecting ring, the sleeve and the second shaft segment are abutted in sequence.

[0010] Preferably, the limiting connecting ring includes a ring body, and a plurality of positioning protrusions are circumferentially arranged on the outer edge of one end surface of the ring body facing the sleeve, and a positioning groove matching the positioning protrusion is opened at the second end portion of the sleeve corresponding to the positioning protrusion, and the plurality of positioning protrusions are inserted into the plurality of positioning grooves one by one.

[0011] Preferably, at least one sliding block is provided on the inner peripheral wall of the ring body, a sliding groove matching the sliding block is provided in the axial direction of the third shaft segment, and an avoidance notch for the sliding block to enter and exit the sliding groove is provided at one end of the third shaft segment away from the second shaft segment;

[0012] When the locking nut, the limiting connecting ring, the shaft sleeve and the second shaft section abut against each other in sequence, the sliding block is located in the sliding groove.

[0013] Preferably, a conical transition shaft segment is connected between the second shaft segment and the third shaft segment, and an end of the sleeve close to the second shaft segment is provided with a first inner conical surface matching the conical transition shaft segment, and the first inner conical surface abuts against the conical transition shaft segment.

[0014] Preferably, it also includes a tapered ring, the inner surface of the end of the sleeve away from the second shaft segment is a second inner conical surface matching the outer conical surface of the tapered ring, the tapered ring is sleeved on the third shaft segment and located between the limiting connecting ring and the sleeve, one end of the tapered ring abuts against the inner edge of the end face of the ring body facing the sleeve, and the other end abuts against the second inner conical surface through the outer conical surface.

[0015] In the utility model, the proposed edge drawing machine shaft connection structure fixes the limit connecting ring and the shaft sleeve against the second shaft section in sequence through a locking nut, and utilizes the clamping force and friction force to prevent the shaft sleeve from rotating, which can reduce the difficulty of disassembling the old machine to a certain extent and reduce the difficulty of preparing the edge drawing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the shaft connection structure of the edge drawing machine in one embodiment of the utility model.

[0017] Figure 2 It is a cross-sectional schematic diagram of the shaft connection structure of the edge drawing machine in one embodiment of the utility model.

[0018] Figure 3 This is a schematic structural diagram of a gear shaft in an embodiment of the present invention.

[0019] Figure 4 The figure is a schematic structural diagram of a position limiting connecting ring in an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Reference Figure 1-3 The utility model provides a side drawing machine shaft connection structure, comprising: a side drawing machine main shaft, a gear shaft 4, a limit connection ring 2 and a locking nut 1;

[0022] The gear shaft 4 includes a shaft sleeve 41 and a plurality of gears 42 uniformly fixed on the outer peripheral wall of the shaft sleeve 41 along the circumferential direction; the main shaft of the edge drawing machine includes a first shaft section 7, a second shaft section 6 and a third shaft section 5 connected in sequence, and the diameters of the first shaft section 7, the second shaft section 6 and the third shaft section 5 decrease in sequence; the outer peripheral wall of the end of the third shaft section 5 away from the second shaft section 6 is provided with an external thread matching the locking nut 1;

[0023] The locking nut 1, the limiting connecting ring 2 and the gear shaft 4 are sequentially sleeved on the third shaft section 5 from the direction from the third shaft section 5 to the first shaft section 7. The locking nut 1 is threadedly connected to the external thread, and the locking nut 1, the limiting connecting ring 2, the sleeve 41 and the second shaft section 6 are abutted against each other in sequence.

[0024] The utility model fixes the limiting connecting ring 2 and the shaft sleeve 41 against the second shaft section 6 in sequence through the locking nut 1, and utilizes the clamping force and the friction force to realize the transmission of the main shaft of the edge drawing machine, which can reduce the difficulty of disassembling the old machine to a certain extent and reduce the difficulty of preparing the edge drawing machine.

[0025] In order to realize the rotation limit between the main shaft of the edge drawing machine and the gear shaft 4, so as to improve the force and motion transmission safety factor of the edge drawing shaft connection, in this embodiment, as Figure 4 As shown, the limiting connecting ring 2 includes a ring body 21, and a plurality of positioning protrusions 22 are circumferentially provided on the outer edge of one end surface of the ring body 21 facing the shaft sleeve 41, and a positioning groove 423 matching the positioning protrusion 22 is provided at the second end portion of the shaft sleeve 41 corresponding to the positioning protrusion 22, and the plurality of positioning protrusions 22 are inserted into the plurality of positioning grooves 423 one by one.

[0026] It should be noted that the “plurality” in this embodiment includes two or more.

[0027] In a further embodiment, at least one slider 23 is provided on the inner circumferential wall of the ring body 21, a slide groove matching the slider 23 is axially provided on the third shaft segment 5, and an avoidance notch for the slider 23 to enter and exit the slide groove is provided at one end of the third shaft segment 5 away from the second shaft segment 6;

[0028] When the locking nut 1 , the limiting connecting ring 2 , the shaft sleeve 41 and the second shaft section 6 abut against each other in sequence, the sliding block 23 is located in the sliding groove.

[0029] Such an arrangement can further limit the rotation of the limiting connecting ring 2 relative to the third shaft section 5, thereby further realizing the rotational limitation between the top drawing machine main shaft and the gear shaft 4, so that the force and motion transmission safety factor at the top drawing shaft connection is higher.

[0030] In this embodiment, a conical transition shaft segment 8 is connected between the second shaft segment 6 and the third shaft segment 5 , and a first inner conical surface matching the conical transition shaft segment 8 is provided at one end of the sleeve 41 close to the second shaft segment 6 , and the first inner conical surface rests against the conical transition shaft segment 8 .

[0031] With such arrangement, when the locking nut 1 is tightened, the conical surface between the gear shaft 4 and the conical transition shaft segment 8 is tightened, so that the main shaft of the edge drawing machine and the gear shaft 4 have a certain coaxiality, thereby achieving the high-precision assembly requirements of the main shaft of the edge drawing machine, and the old shaft can be normally and easily removed after a long period of use.

[0032] In a further embodiment, it also includes a tapered ring 3, the inner surface of the end of the sleeve 41 away from the second shaft segment 6 is a second inner conical surface 422 that matches the outer conical surface of the tapered ring 3, the tapered ring 3 is sleeved on the third shaft segment 5 and is located between the limiting connecting ring 2 and the sleeve 41, one end of the tapered ring 3 abuts against the inner edge of the end face of the ring body 21 facing the sleeve 41, and the other end abuts against the second inner conical surface 422 through the outer conical surface.

[0033] With such arrangement, when the locking nut 1 is tightened, the conical surface fit between the tapered sleeve 3 and the gear shaft 4 and the conical surface fit between the gear shaft 4 and the conical transition shaft section 8 are tightened, which further improves the coaxiality of the edge drawing machine main shaft and the gear shaft 4, thereby achieving the high-precision assembly requirements of the edge drawing machine main shaft, and the old shaft can be normally and easily removed after a long period of use.

[0034] Specifically, the positioning groove 423 is open on the second inner conical surface 422 .

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A top drawing machine shaft connection structure, characterized in that: include: A main shaft of a top drawing machine, a gear shaft (4), a limit connecting ring (2) and a locking nut (1); The gear shaft (4) comprises a shaft sleeve (41) and a plurality of gears (42) uniformly fixed on the outer peripheral wall of the shaft sleeve (41) along the circumferential direction; The main shaft of the edge drawing machine comprises a first shaft section (7), a second shaft section (6) and a third shaft section (5) which are connected in sequence, and the diameters of the first shaft section (7), the second shaft section (6) and the third shaft section (5) are successively reduced; an external thread matching the locking nut (1) is provided on the outer peripheral wall of the end of the third shaft section (5) away from the second shaft section (6); The locking nut (1), the limiting connecting ring (2) and the gear shaft (4) are sequentially sleeved on the third shaft section (5) along the direction from the third shaft section (5) to the first shaft section (7); the locking nut (1) is threadedly connected to the external thread, and the locking nut (1), the limiting connecting ring (2), the shaft sleeve (41) and the second shaft section (6) are sequentially abutted.

2. The top drawing machine shaft connection structure according to claim 1, characterized in that: The limiting connecting ring (2) comprises a ring body (21), wherein a plurality of positioning protrusions (22) are provided along the circumferential direction on the outer edge of one end surface of the ring body (21) facing the shaft sleeve (41), and a positioning groove (423) matching the positioning protrusion (22) is provided at a position corresponding to the positioning protrusion (22) at the second end portion of the shaft sleeve (41), and the plurality of positioning protrusions (22) are inserted into the plurality of positioning grooves (423) in a one-to-one corresponding manner.

3. The top drawing machine shaft connection structure according to claim 2, characterized in that: At least one sliding block (23) is provided on the inner peripheral wall of the ring body (21); a sliding groove matching the sliding block (23) is provided on the third shaft segment (5) along the axial direction; and an escape notch for the sliding block (23) to enter and exit the sliding groove is provided at one end of the third shaft segment (5) away from the second shaft segment (6); When the locking nut (1), the limiting connecting ring (2), the shaft sleeve (41) and the second shaft section (6) are in contact with each other in sequence, the sliding block (23) is located in the sliding groove.

4. The shaft connection structure of the top drawing machine according to claim 2, characterized in that: A conical transition shaft section (8) is connected between the second shaft section (6) and the third shaft section (5); an end of the shaft sleeve (41) close to the second shaft section (6) is provided with a first inner conical surface (421) matching the conical transition shaft section (8); the first inner conical surface (421) abuts against the conical transition shaft section (8).

5. The top drawing machine shaft connection structure according to claim 4, characterized in that: It also includes a tapered sleeve (3), wherein the inner surface of one end of the shaft sleeve (41) away from the second shaft segment (6) is a second inner conical surface (422) matching the outer conical surface of the tapered sleeve (3), the tapered sleeve (3) is sleeved on the third shaft segment (5) and is located between the limiting connecting ring (2) and the shaft sleeve (41), one end of the tapered sleeve (3) abuts against the inner edge of the end surface of the ring body (21) facing the shaft sleeve (41), and the other end abuts against the second inner conical surface (422) through the outer conical surface.

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