Roller ring shaft sleeve assembly of pinch roller

Abstract

The utility model belongs to the technical field of mechanical equipment, and particularly relates to a roll collar and shaft sleeve assembly of a pinch roll, which comprises an assembly seat, a shaft sleeve and a roll collar, one side of the assembly seat is fixedly connected with the shaft sleeve, the roll collar is sleeved outside the shaft sleeve, and accommodating grooves are formed in the inner wall of the shaft sleeve at equal intervals. A wear-resisting block is arranged in the containing groove, the outer wall of the side, facing the pinch roll shaft, of the wear-resisting block and the inner wall of the shaft sleeve are located on the same plane, and a plurality of oil pits used for storing oil are evenly formed in the side, facing the pinch roll shaft, of the wear-resisting block. The self-made shaft sleeve solves the problem that the size of the roll collar is not consistent, reduces the maintenance cost of workers, relieves the capital purchase pressure, is simple in structure, firm in installation and low in cost, meets the requirements of high-speed line fast-paced production, achieves the purposes of improving the yield and saving spare parts and maintenance cost, reduces the friction loss of the shaft sleeve, prolongs the service life of the shaft sleeve, and improves the production efficiency. And the replacement frequency is reduced, so that the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a pinch roller ring sleeve assembly. Background Art

[0002] The pinch roller is a key device for the high-speed production line of the steel mill to provide power to the rolled piece, make the rolled piece run smoothly, control the running speed of the tail of the rolled piece, and ensure the smooth spinning of the rolled piece. The pinch rollers in front of the second and third high-speed wire laying machines of the Beiying Steel Mill are located at the end of the water-cooling section. Their function is to smoothly feed the rolled piece into the wire laying machine. The pinch rollers use tungsten carbide roller rings. The multi-groove roller rings are symmetrically adjusted along the rolling line to cover the production of products of all specifications according to demand. The following defects or deficiencies exist in the use of the pinch roller rings:

[0003] 1. Due to the special material of the roller ring, the high cost of spare parts and the long procurement cycle, the daily maintenance and replacement costs are high;

[0004] 2. The sleeve has a large amount of wear, its service life is short, and the maintenance cost is high. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a pinch roller ring sleeve assembly.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pinch roller roller ring shaft sleeve assembly, comprising an assembly seat, a shaft sleeve and a roller ring;

[0008] One side of the assembly seat is fixedly connected to the shaft sleeve, and the roller ring is sleeved outside the shaft sleeve. The inner wall of the shaft sleeve is provided with accommodating grooves at equal distances, and wear-resistant blocks are arranged in the accommodating grooves.

[0009] As a further solution of the utility model: the outer wall of the shaft sleeve is connected with the inner wall of the roller ring by interference fit, and the inner wall of the shaft sleeve is in contact with the outer wall of the roller shaft of the pinch roller.

[0010] As a further solution of the utility model: the outer wall of the wear-resistant block facing the pinch roller shaft is located in the same plane as the inner wall of the sleeve, and a plurality of oil pits for storing oil are evenly opened on the side of the wear-resistant block facing the pinch roller shaft.

[0011] As a further solution of the utility model: positioning protrusions are arranged at equal distances on the outer wall of the wear-resistant block away from the roller shaft of the clamping roller, and positioning grooves corresponding to the positioning protrusions are opened at the bottom of the accommodating grooves, and the top of the positioning protrusion is located in the same plane as the outer wall of the sleeve.

[0012] As a further solution of the utility model: the outer wall of the shaft sleeve is provided with grooves at equal distances, and the grooves are provided with oil filling holes at equal distances.

[0013] As a further solution of the utility model: the interference between the shaft sleeve and the roller ring is 0.04mm-0.07mm, and limit blocks supporting the roller ring are arranged at equal distances on the outer wall of the shaft sleeve.

[0014] As a further solution of the utility model: bolt holes are provided on the assembly seat at equal intervals, and fastening bolts are threadedly passed through the inner threads of the bolt holes.

[0015] Compared with the prior art, the utility model provides a pinch roller ring sleeve assembly, which has the following beneficial effects:

[0016] 1. The pinch roller roller ring sleeve assembly of this design utilizes the existing scrapped roller rings and solves the problem of roller ring size mismatch through self-made sleeves, reduces the maintenance cost of workers, and relieves the pressure of capital procurement. It has a simple structure, a firm installation, and a low cost. It meets the requirements of high-speed line and fast-paced production, reduces the failure rate, and achieves the purpose of increasing production, saving spare parts and maintenance costs. It can effectively reduce the cost of spare parts, reduce capital pressure, meet production and safety requirements, and reduce the failure rate. At the same time, it can help enterprises achieve the purpose of reducing costs and increasing efficiency, saving costs, and relieving the shortage of spare parts funds and long procurement cycles;

[0017] 2. A pinch roller ring shaft sleeve assembly of the present design is provided with a wear-resistant block so that the pinch roller shaft contacts the wear-resistant block. The hardness of the wear-resistant block is higher than that of the shaft sleeve, and its wear is smaller, thereby reducing the friction loss of the shaft sleeve, increasing the service life of the shaft sleeve, reducing the frequency of its replacement, and thus reducing maintenance costs. The oil pit can evenly distribute the lubricating oil on the inner wall of the shaft sleeve, the contact surface of the wear-resistant block and the pinch roller shaft, and the excess lubricating oil is stored in the oil pit, which plays a role in replenishing lubrication at any time.

[0018] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall three-dimensional diagram of a pinch roller ring sleeve assembly proposed by the utility model;

[0020] Figure 2 A three-dimensional diagram of a sleeve of a pinch roller ring sleeve assembly proposed by the utility model;

[0021] Figure 3 A three-dimensional diagram of a wear-resistant block of a pinch roller ring sleeve assembly proposed by the utility model;

[0022] Figure 4 A three-dimensional diagram of an assembly seat of a pinch roller ring sleeve assembly proposed by the utility model.

[0023] In the figure: 1. Assembly seat; 2. Bushing; 3. Roller ring; 4. Receiving groove; 5. Wear-resistant block; 6. Oil pit; 7. Positioning protrusion; 8. Positioning groove; 9. Groove; 10. Oil filling hole; 11. Limit block; 12. Bolt hole; 13. Fastening bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1, reference Figure 1-4 , a pinch roller roller ring sleeve assembly, comprising an assembly seat 1, a sleeve 2 and a roller ring 3;

[0026] One side of the assembly seat 1 is fixedly connected to the shaft sleeve 2, the roller ring 3 is sleeved outside the shaft sleeve 2, and the inner wall of the shaft sleeve 2 is provided with accommodating grooves 4 at equal distances, and wear-resistant blocks 5 are arranged in the accommodating grooves 4.

[0027] The outer wall of the shaft sleeve 2 is connected with the inner wall of the roller ring 3 by interference fit, and the inner wall of the shaft sleeve 2 is fitted with the outer wall of the roller shaft of the pinch roller.

[0028] The outer wall of the wear-resistant block 5 facing the roller shaft of the pinch roller is located in the same plane as the inner wall of the sleeve 2. A plurality of oil pits 6 for storing oil are evenly provided on the side of the wear-resistant block 5 facing the roller shaft of the pinch roller.

[0029] Positioning protrusions 7 are arranged at equal distances on the outer wall of the wear-resistant block 5 away from the roller shaft of the pinch roller. Positioning grooves 8 corresponding to the positioning protrusions 7 are opened at the bottom of the accommodating grooves 4. The top of the positioning protrusion 7 is located in the same plane as the outer wall of the sleeve 2.

[0030] The outer wall of the shaft sleeve 2 is provided with grooves 9 at equal intervals, and the grooves 9 are provided with oil filling holes 10 at equal intervals.

[0031] The interference between the shaft sleeve 2 and the roller ring 3 is 0.04 mm-0.07 mm, and the outer wall of the shaft sleeve 2 is provided with limit blocks 11 supporting the roller ring 3 at equal distances.

[0032] The assembly seat 1 is provided with bolt holes 12 at equal intervals, and fastening bolts 13 are threadedly passed through the inner threads of the bolt holes 12 .

[0033] Working principle: The utility model is a pinch roller roller ring sleeve assembly. When the user uses this equipment, the assembly seat 1 is fixedly connected to one side of the output shaft of the driving motor by fastening the bolts 13 and the bolt holes 12. The inner wall of the sleeve 2 fits the outer wall of the pinch roller shaft. The positioning protrusion 7 is embedded in the positioning groove 8 to connect the wear-resistant block 5 to the sleeve 2 and limit the movement of the wear-resistant block 5 (the wear-resistant block 5 is a metal block, an engineering plastic block or a metal-plastic composite block, and can also be made of other materials with high hardness, as long as its hardness is greater than the hardness of the sleeve 2). The pinch roller shaft contacts the wear-resistant block 5, and the wear-resistant block 5 The hardness is higher than that of the shaft sleeve 2, and its wear amount is smaller, thereby reducing the friction loss of the shaft sleeve 2 and increasing the service life of the shaft sleeve 2. There are multiple oil pits 6, which are evenly distributed on the outer wall of the wear-resistant block 5 facing the roller shaft of the pinch roller. The lubricating oil is stored in the oil pits 6 to lubricate the roller shaft of the pinch roller and the wear-resistant block 5, further reducing the friction loss between the two, further increasing the service life of the shaft sleeve 2, and increasing the service life of the pinch roller shaft sleeved in the shaft sleeve 2. When lubricating oil needs to be added, it can be added to the inside of the shaft sleeve 2 through the groove 9 and the oil filling hole 10. The operation is simple, efficient and fast.

[0034] 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 pinch roller roller ring sleeve assembly, comprising an assembly seat (1), a sleeve (2) and a roller ring (3), characterized in that: One side of the assembly seat (1) is fixedly connected to the shaft sleeve (2), and the roller ring (3) is sleeved outside the shaft sleeve (2). The inner wall of the shaft sleeve (2) is provided with accommodating grooves (4) at equal distances, and wear-resistant blocks (5) are arranged in the accommodating grooves (4).

2. A pinch roller ring sleeve assembly according to claim 1, characterized in that: The outer wall of the shaft sleeve (2) is connected to the inner wall of the roller ring (3) by interference fit, and the inner wall of the shaft sleeve (2) is in contact with the outer wall of the roller shaft of the pinch roller.

3. The pinch roller ring sleeve assembly according to claim 1, characterized in that: The outer wall of the wear-resistant block (5) facing the roller shaft of the pinch roller is located in the same plane as the inner wall of the shaft sleeve (2), and a plurality of oil pits (6) for storing oil are evenly arranged on the side of the wear-resistant block (5) facing the roller shaft of the pinch roller.

4. The pinch roller ring sleeve assembly according to claim 1, characterized in that: Positioning protrusions (7) are arranged at equal distances on the outer wall of the wear-resistant block (5) away from the roller shaft of the pinch roller, and positioning grooves (8) corresponding to the positioning protrusions (7) are opened at the bottom of the accommodating groove (4), and the top of the positioning protrusion (7) and the outer wall of the shaft sleeve (2) are located in the same plane.

5. The pinch roller ring sleeve assembly according to claim 1, characterized in that: The outer wall of the shaft sleeve (2) is provided with grooves (9) at equal distances, and the grooves (9) are provided with oil filling holes (10) at equal distances.

6. The pinch roller ring sleeve assembly according to claim 1, characterized in that: The interference fit between the shaft sleeve (2) and the roller ring (3) is 0.04 mm-0.07 mm, and limit blocks (11) for supporting the roller ring (3) are arranged at equal distances on the outer wall of the shaft sleeve (2).

7. The pinch roller ring sleeve assembly according to claim 1, characterized in that: The assembly seat (1) is provided with bolt holes (12) at equal distances, and the bolt holes (12) are internally threaded with fastening bolts (13).

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