Novel roller end shaft sleeve assembly

Abstract

The utility model discloses a novel roller end shaft sleeve assembly which comprises a shaft sleeve, two symmetrical arc lining plates and two symmetrical adjustable units, and each adjustable unit comprises an inclined lining plate, a sliding plate, two studs, two nuts and two springs. The inner surfaces of the inclined lining plates are straight planes, and the outer surfaces of the inclined lining plates are inclined planes; the inclined surface of the inclined lining plate is matched with the inner inclined surface of the shaft sleeve, an outer inclined surface is processed outside the shaft sleeve corresponding to the inner inclined surface, a waist-shaped hole perpendicular to the inclined surfaces is arranged between the inner inclined surface and the outer inclined surface, and the sliding plate is arranged on the outer inclined surface; the left end face of the spring is in contact with the end face of an inner hole of the shaft sleeve. According to the utility model, the flat head and the shaft sleeve of the roller can be conveniently mounted by enlarging the flat opening opening, and the gap between the mounted roller and the shaft sleeve can be controlled by reducing the flat opening opening, so that the working reliability is realized, and the quality of a rolled piece is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission, in particular to a roller end sleeve of a coupling. Background Art

[0002] With the development of high-speed steel rolling, the steel industry is transforming towards high quality, high efficiency and more environmentally friendly direction, and its requirements for the surface quality of rolled parts are getting higher and higher. Rollers are the key to ensuring the surface quality of rolled parts. When defects such as chatter marks are detected on the surface of rolled parts, a new pair of rolls needs to be replaced to ensure the surface quality of rolled parts.

[0003] The working principle of the roller is: the flat head of the roller is connected to the roller end sleeve of the coupling, and the other end of the coupling is connected to the motor. Under the drive of the motor, the coupling drives the roller to rotate to achieve rolling. Figure 7 , Figure 8 As shown in the figure, the size of the flat-mouth opening is fixed. Under the condition of meeting the installation requirements, the gap between the size of the flat-mouth opening and the flat head of the roll should be as small as possible. However, if the gap is too small, the flat head of the roll is difficult to fit into the roll end sleeve; but if the gap is too large, the coupling is prone to jitter during high-speed operation, thereby affecting the surface quality of the rolled piece. At present, there is an urgent need for a roll end sleeve that is both easy to install and can control the gap. Summary of the invention

[0004] The problem to be solved by the utility model is to provide a novel roller end sleeve assembly, which can conveniently realize the installation of the flat head of the roller and the sleeve by enlarging the flat mouth opening, and can also control the gap between the installed roller and the sleeve by reducing the flat mouth opening to achieve reliability during operation and ensure the quality of the rolled parts.

[0005] The utility model discloses a novel roller end sleeve assembly, which comprises a sleeve, two symmetrical circular arc liner plates, and two symmetrical adjustable units, each adjustable unit comprising an inclined liner plate, a slide plate, two studs, two nuts, and two springs; the inclined liner plates are symmetrically arranged in the sleeve, the inner surface of the inclined liner plates is a straight plane, and the outer surface thereof is an inclined surface, the inclined surface forms a step surface on the outer side, and a screw hole perpendicular to the inclined surface is arranged between the inclined surface and the inner surface; the inclined surface of the inclined liner plates matches the inner inclined surface of the sleeve, and the step surface contacts the end surface of the sleeve, the sleeve is processed with an outer inclined surface on the outer side corresponding to the inner inclined surface, a waist-shaped hole perpendicular to the inclined surface is arranged between the inner and outer inclined surfaces, the slide plate is arranged on the outer inclined surface, the middle parts of the two studs are located in the waist-shaped holes, the upper ends thereof pass through the slide plate and are locked by nuts, and the lower ends thereof are connected with the screw holes of the inclined liner plates; the inner end surface of the inclined liner plates is provided with two front and rear blind holes, the spring is arranged in the blind hole, and the left end surface thereof contacts the inner hole end surface of the sleeve.

[0006] Furthermore, each adjustable unit also includes two positioning pins, which are matched with the pin holes of the shaft sleeve body and extend into the blind holes of the inclined lining plate, and the spring is sleeved outside the positioning pins.

[0007] Furthermore, each adjustable unit also includes a plug, and two ends of the plug are respectively connected to the screw hole of the shaft sleeve and the screw hole of the end face of the positioning pin.

[0008] Furthermore, the roller end sleeve assembly also includes a backing plate, which is arranged between the step surface of the inclined lining plate and the outer end surface of the sleeve 1 and is connected to the sleeve.

[0009] Furthermore, the backing plate may be composed of a plurality of backing plates, and the thickness of each backing plate may be inconsistent.

[0010] Furthermore, the roller end sleeve assembly also includes a steel wire, the nut is a slotted nut, the stud is provided with a plurality of through holes, and the steel wire passes through the holes of the left and right studs and the open slot of the nut.

[0011] Further, the steel wires are crossed to form an 8-shape.

[0012] Furthermore, steps are respectively provided at both ends of the circular arc lining plate, which clamp the left and right ends of the matching surface with the shaft sleeve and are fixedly connected with the shaft sleeve through fasteners.

[0013] The working principle of the roller end sleeve assembly of the utility model is as follows: when the roller needs to be replaced, the old roller is gradually moved outward, and under the action of the spring elastic force, the inclined lining plate slides synchronously to the right and outward along the inclined surface, so that the size between the two inclined lining plates, that is, the flat mouth opening, gradually becomes larger, until the stud hits the waist-shaped hole and stops moving to the right. At this time, the flat mouth opening size is 2-3mm larger than the flat head size of the roller, so that the roller can be easily moved out, and the wear of the roller head on the flat surface can also be prevented; at this time, the flat head of the new roller can easily enter the sleeve, and when the step surface at the flat head of the roller contacts the outer end face of the inclined lining plate, the inclined lining plate is gradually moved to the left and inward by the axial force of the end face of the roller, so that the flat mouth opening gradually becomes smaller, until the step surface of the inclined lining plate contacts the outer end face of the sleeve and stops moving to the left. At this time, the opening size has been adjusted to the minimum, that is, the gap with the flat mouth of the roller is the minimum gap, so that the sleeve and the roller are closely matched during operation, and the coupling will not affect the surface quality of the rolled piece due to jitter during high-speed operation.

[0014] Therefore, the roller end sleeve of the utility model can not only realize the convenient entry and exit of the flat head of the roller in and out of the sleeve for installation and disassembly by enlarging the flat mouth opening, but also can control the gap between the installed roller and the sleeve by reducing the flat mouth opening to realize reliability during operation and ensure the quality of the rolled parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the connection between the roller end sleeve assembly, the coupling and the roller of the utility model;

[0016] Figure 2 This is a main sectional view of the roller end sleeve assembly of the utility model;

[0017] Figure 3 yes Figure 2 Sectional view along line AA;

[0018] Figure 4 yes Figure 2 X-direction local graph;

[0019] Figure 5 yes Figure 2 Right view of;

[0020] Figure 6 yes Figure 2 Left view of

[0021] Figure 7 is a main cross-sectional view of a roller end sleeve assembly in the background art;

[0022] Figure 8 yes Figure 7 Right view of . DETAILED DESCRIPTION

[0023] Example 1

[0024] from Figure 1 , Figure 2 , Figure 5 , Figure 6 It can be seen that the utility model is a novel roller end sleeve assembly, which includes a sleeve 1, two symmetrical arc liner plates 11, and two symmetrical adjustable units, each of which includes an inclined liner plate 2, a slide plate 3, two studs 4, two nuts 5, and two springs 6; the inclined liner plate 2 is symmetrically arranged in the sleeve 1, the inner surface of the inclined liner plate 2 is a straight plane, and the outer surface is an inclined surface, the inclined surface forms a step surface on the outer side, and a screw hole perpendicular to the inclined surface is arranged between the inclined surface and the inner surface; the inclined surface of the inclined liner plate 2 is aligned with the inclined surface of the sleeve 1. The inner bevel fits and the step surface contacts the end face of the sleeve 1. The sleeve 1 is processed with an outer bevel on the outside corresponding to the inner bevel. A waist-shaped hole perpendicular to the bevel is arranged between the inner and outer bevels. The slide plate 3 is arranged on the outer bevel. The middle parts of the two studs 4 are located in the waist-shaped hole. The upper ends thereof pass through the slide plate 3 and are locked by nuts 5, and the lower ends thereof are connected to the screw holes of the inclined lining plate 2. The inner end face of the inclined lining plate 2 is provided with two front and rear blind holes. The spring 6 is arranged in the blind hole, and its left end face contacts the inner hole end face of the sleeve 1.

[0025] like Figure 1As shown, the left end of the roller end sleeve assembly of the utility model is connected to the flange of the coupling 20 through a flange, and the right end is connected to the roller 30 through the flat mouth between the inclined lining plates and the cylinder between the arc lining plates: wherein, the nut 5 and the stud 4 fix the inclined lining plate 2 in the sleeve 1, so that when the inclined lining plate 2 slides left and right along the inner inclined surface of the sleeve 1, there is no gap between the fitting surfaces of the inclined lining plate 2 and the sleeve 1; under the action of the elastic force of the spring 6, the inclined lining plate 2 slides to the right and outside along the inclined surface to gradually increase the opening of the flat mouth; under the thrust of the roller, the inclined lining plate 2 slides to the left and inside along the inclined surface to gradually decrease the opening of the flat mouth.

[0026] The working principle of the utility model is as follows: when the roller needs to be replaced, the old roller is gradually moved outwards, and under the action of the elastic force of the spring 6, the inclined liner 2 slides synchronously to the right and outwards along the inclined surface, so that the size between the two inclined liner plates 2, that is, the flat mouth opening, gradually becomes larger, until the stud 4 hits the waist-shaped hole and stops moving to the right. At this time, the flat mouth opening size is 2-3mm larger than the flat head size of the roller, so that the roller can be easily moved out, and at the same time, the wear of the roller head on the flat surface can be prevented; at this time, the flat head of the new roller can easily enter the sleeve When the step surface at the flat head of the roller contacts the outer end face of the inclined lining plate 2, the inclined lining plate 2 is subjected to the axial force of the end face of the roller and moves gradually to the left to reduce the opening of the flat mouth gradually until the step surface of the inclined lining plate 2 contacts the outer end face of the sleeve body 1 and stops moving to the left. At this time, the opening size has been adjusted to the minimum, that is, the gap with the flat mouth of the roller is the minimum gap. This ensures that the sleeve and the roller are closely matched during operation, and the coupling will not affect the surface quality of the rolled piece due to jitter during high-speed operation.

[0027] Example 2

[0028] from Figure 1 , Figure 2 , Figure 5 , Figure 6 It can be seen that the roller end sleeve assembly of the utility model: each adjustable unit also includes two positioning pins 7, which are matched with the pin holes of the sleeve body 1 and extend into the blind holes of the inclined lining plate 2, and the spring 6 is sleeved outside the positioning pins 7.

[0029] The positioning pin 7 limits the spring 6 to prevent the spring 6 from falling from the blind hole of the inclined lining plate 2, thereby ensuring the reliability of the inclined lining plate 2 sliding left and right.

[0030] Example 3

[0031] from Figure 1 , Figure 2 , Figure 5 , Figure 6 It can be known that the roller end sleeve assembly of the utility model: each adjustable unit also includes a plug 10, and the two ends of the plug 10 are respectively connected to the screw hole of the sleeve 1 and the screw hole of the end surface of the positioning pin 7.

[0032] When the gap between the positioning pin 7 and the sleeve body 1 becomes larger, the plug 10 can prevent the positioning pin 7 from slipping out of the sleeve body 1 .

[0033] Example 4

[0034] from Figure 1 , Figure 2 , Figure 5 , Figure 6 It can be known that the roller end sleeve assembly of the utility model further includes a backing plate 8 , which is arranged between the step surface of the inclined lining plate 2 and the outer end surface of the sleeve 1 and connected to the sleeve 1 .

[0035] The backing plate 8 may be composed of a plurality of backing plates, and the thickness of each backing plate may be inconsistent.

[0036] Under the impact of the forward and reverse rotation of the roller, wear will occur between the inclined lining plate 2 which mainly transmits the rolling torque and the flat head of the roller, resulting in an increase in the gap. Therefore, multi-layer thickness pads are arranged between the inclined lining plate 2 and the sleeve 1. The thickness of the pads is calculated according to the amount of wear. By reducing the number of pads 8 by a certain number of pieces, the inclined lining plate 2 can continue to move inward, thereby achieving appropriate compensation for the opening of the flat mouth.

[0037] Example 5

[0038] from Figure 1 , Figure 2 , Figure 4 It can be seen that the roller end sleeve assembly of the utility model also includes a steel wire 9, the nut 5 is a slotted nut, the stud 4 is provided with multiple through holes, the steel wire 9 passes through the holes of the left and right studs 4 and the open slot of the nut 5 and crosses to form an 8 shape.

[0039] Since the roller rotates in both forward and reverse directions, the roller end sleeve will also produce alternating vibrations. If the nut 5 is loose, the entire system will stop working, so the nut 5 needs to be tightened; however, in order to ensure that the inclined lining plate 2 can achieve axial sliding under the action of the elastic force of the spring 6, the nut 5 can only be tightened appropriately; therefore, the nut 5 is designed to prevent loosening: that is, the left and right studs 4 and the left and right nuts are connected in series in an 8 shape through a steel wire 9, which can ensure that the nut 5 has an appropriate tightening force and will not loosen, and can also ensure the axial sliding of the inclined lining plate 2.

[0040] Example 6

[0041] from Figure 1 , Figure 2 , Figure 3 , Figure 5 It can be known that in the roller end sleeve assembly of the present invention: steps are respectively arranged at both ends of the arc liner 11, which clamp the left and right ends of the matching surface with the sleeve 1 and are fixedly connected with the sleeve 1 through fasteners.

[0042] During the insertion and extraction process of the roller, the arc liner 11 will be subjected to axial force. The arc liner 11 is prevented from axially moving in the sleeve by the left and right steps, thereby avoiding the risk of shearing of the fasteners.

[0043] The working principle of the roller end sleeve assembly of the utility model is as follows: when the roller needs to be replaced, the old roller is gradually moved outward, and under the action of the elastic force of the spring 6, the inclined liner 2 slides synchronously to the right and outward along the inclined surface, so that the size between the two inclined liner plates 2, that is, the flat mouth opening, gradually becomes larger, until the stud 4 hits the waist-shaped hole and stops moving to the right. At this time, the flat mouth opening size is 2-3mm larger than the flat head size of the roller, so that the roller can be easily moved out, and at the same time, the roller head is prevented from wearing the flat surface; at this time, the flat head of the new roller can be easily inserted Inside the sleeve, when the step surface at the flat head of the roller contacts the outer end face of the inclined lining plate 2, the inclined lining plate 2 is subjected to the axial force of the end face of the roller and moves gradually to the left to reduce the opening of the flat mouth gradually until the step surface of the inclined lining plate 2 contacts the outer end face of the sleeve body 1 and stops moving to the left. At this time, the opening size has been adjusted to the minimum, that is, the gap with the flat mouth of the roller is the minimum gap. This ensures that the sleeve and the roller are closely matched during operation, and the coupling will not affect the surface quality of the rolled piece due to jitter during high-speed operation.

[0044] Therefore, the roller end sleeve of the utility model can not only realize the convenient entry and exit of the flat head of the roller in and out of the sleeve for installation and disassembly by enlarging the flat mouth opening, but also control the gap between the installed roller and the sleeve by reducing the flat mouth opening to achieve reliability during operation and ensure the quality of the rolled plate.

Claims

1. A new type of roller end sleeve assembly, characterized by: It comprises a shaft sleeve (1), two symmetrical circular arc lining plates (11), and two symmetrical adjustable units, each of which comprises an inclined lining plate (2), a slide plate (3), two studs (4), two nuts (5), and two springs (6); the inclined lining plates (2) are symmetrically arranged in the shaft sleeve (1); the inner surface of the inclined lining plates (2) is a straight plane, and the outer surface thereof is an inclined surface, the inclined surface forms a step surface on the outer side, and a screw hole perpendicular to the inclined surface is arranged between the inclined surface and the inner surface; the inclined surface of the inclined lining plate (2) cooperates with the inner inclined surface of the shaft sleeve (1), and the step surface is provided on the outer side of the inclined surface. The surface contacts the end surface of the sleeve (1); the sleeve (1) is processed with an outer bevel on the outside corresponding to the inner bevel; a waist-shaped hole perpendicular to the bevel is arranged between the inner and outer bevels; the slide plate (3) is arranged on the outer bevel; the middle parts of the two studs (4) are located in the waist-shaped hole; the upper ends thereof pass through the slide plate (3) and are locked by nuts (5); the lower ends thereof are connected to the screw holes of the inclined lining plate (2); the inner end surface of the inclined lining plate (2) is provided with two front and rear blind holes; the spring (6) is arranged in the blind hole, and the left end surface thereof contacts the inner hole end surface of the sleeve (1).

2. The roller end sleeve assembly according to claim 1, characterized in that: Each adjustable unit also includes two positioning pins (7). The positioning pins (7) are matched with the pin holes of the shaft sleeve (1) and extend into the blind holes of the inclined lining plate (2). The spring (6) is sleeved outside the positioning pins (7).

3. The roller end sleeve assembly according to claim 2, characterized in that: Each adjustable unit also includes a plug (10), and two ends of the plug (10) are respectively connected to the screw hole of the shaft sleeve (1) and the screw hole of the end surface of the positioning pin (7).

4. The roller end sleeve assembly according to claim 1, characterized in that: It also includes a pad (8), which is arranged between the step surface of the inclined lining plate (2) and the outer end surface of the shaft sleeve (1) and is connected to the shaft sleeve (1).

5. The roller end sleeve assembly according to claim 4, characterized in that: The backing plate (8) may be composed of a plurality of backing plates, and the thickness of each backing plate may be different.

6. The roller end sleeve assembly according to claim 1, characterized in that: It also includes a steel wire (9), the nut (5) is a slotted nut, the stud (4) is provided with a plurality of through holes, and the steel wire (9) passes through the holes of the left and right studs (4) and the open slot of the nut (5).

7. The roller end sleeve assembly according to claim 6, characterized in that: The steel wires (9) cross to form an 8-shaped shape.

8. The roller end sleeve assembly according to claim 1, characterized in that: Both ends of the lining plate (11) are respectively provided with steps, which clamp the left and right ends of the matching surface with the shaft sleeve (1) and are fixedly connected with the shaft sleeve (1) through fasteners.

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