CN209998130U - antiskid safety catcher for hot rolling fine straightening machine - Google Patents

Abstract

The utility model discloses an kind of hot rolling finish straightener is with anti-skidding safe catcher device locates on main shaft and the transmission shaft, including outer lane steel bushing, interior steel bushing and the directional round pin of a plurality of, on the outside of transmission shaft was located to the interior steel bushing, on the outside of interior steel bushing was located to the outer lane steel bushing, be equipped with the packing abrasive material between outer lane steel bushing and the interior steel bushing, the end of outer lane steel bushing passes through fastening bolt and links to each other on the main shaft, and the main shaft passes through special bolt, nut and transmission shaft and links to each other, the installation pinhole of corresponding a plurality of equipartition is all seted up upwards to outer lane steel bushing and interior steel bushing circumference, and the directional round pin of twisting is all furnished with in every installation pinhole, makes between outer lane steel bushing and the interior steel bushing mutually fixed through directional round pin, the utility model discloses can avoid former straightener for anti-skidding safe catcher repair cost too high for the finish straightener, realize the low-cost.

Description

antiskid safety catcher for hot rolling fine straightening machine

Technical Field

The utility model relates to an antiskid safety catcher on hot rolling fine straightening machine, more specifically say, relate to kinds of antiskid safety catcher devices for hot rolling fine straightening machine.

Background

The final processes of the line are to straighten the steel plate after heat treatment to obtain a finished delivery plate type meeting the specification and the user requirements.

In order to meet the straightening requirement of a large range of plate thicknesses (3mm to 12mm), the existing straightening machine is designed to be provided with double-roller box quick exchange, wherein a large roller box is 13 rollers and meets the straightening requirement of a steel plate with the plate thickness of more than 6mm, and another small roller boxes are 19 rollers and meets the straightening requirement of the steel plate with the plate thickness of less than 6mm, 13 working rollers of the large roller box rotate by universal shafts, a safety joint 100 (shown in figure 1) is arranged at the end of a distribution box, 19 working rollers of the small roller box are all driven by a crowned tooth joint shaft, and a safety joint 200 (shown in figure 2) is arranged in the middle of the shaft.

However, the conventional safety catcher 100 and 200 often has a slipping accident, and multiple slipping causes the transmission shaft to generally lose due capacity of transmitting torque, so that the production line capacity exertion and the steel plate shape quality are severely restricted, and the function of the straightening machine needs to be quickly recovered on the premise of meeting the process requirements and equipment guarantee.

The reason is that after the steel plate is subjected to heat treatment, the plate type of the steel plate is difficult to be accurately controlled, particularly a quenching plate, the outlet plate type of the quenching machine is difficult to meet the plate type requirement of the straightening machine on the inlet steel plate due to the difficult control and unpredictable uneven distribution of a quenching cooling water flow field, namely 50mm/m, but under the production task pressure, the phenomenon of forced straightening often occurs regardless of the precondition of incoming materials, and in many cases, times of straightening still cannot meet the acceptance condition of the plate type (particularly the plate type of the head of the steel plate, which is determined by the inherent functional characteristics of the straightening machine and cannot be simply changed), at this time, the phenomenon of reverse straightening occurs, and the operation also violates the process specification of the straightening machine.

The safety catcher shown in FIG. 3 adopts special torque limiting modes, and the structure of the safety catcher comprises a main shaft 1, a fastening bolt 2, an outer steel sleeve 3, an adjusting ring 4, a spacer ring 5, a gasket 6, a special bolt 7, a nut 8, a filling material 9, an inner steel sleeve 10 and a transmission shaft 11, namely quantitative filling materials 9 are pressed between the outer steel sleeve 3 and the inner steel sleeve 10, limited torque is established by virtue of the friction force generated by the filling materials 9, and the safety catcher 100 and 200 can slip and play a role in protecting the following mechanical transmission structure once the load torque exceeds the rated value of the safety catcher .

Frequent slipping, i.e. relative displacement of the outer steel jacket 3 and the inner steel jacket 10, necessarily has a continuously diminishing effect on the friction of the filler material 9, eventually rendering the safety catch 100, 200 ineffective by not providing a minimum torque.

The present safety adaptor 100, 200 is constructed as shown in fig. 3, the inner steel sleeve 10 is sleeved on the transmission shaft 11, the outer steel sleeve 3 is sleeved on the inner steel sleeve 10, quantitative filling material 9 is pressed in between, end of the outer steel sleeve 3 is connected to the main shaft 1 through the fastening bolt 2, the main shaft 1 is connected with the transmission shaft 11 through the special bolt 7 and the nut 8, and the adjusting ring 4, the spacer ring 5 and the gasket 6 are also provided, therefore, the structural characteristics restrict the simple repair to recover the function of the main shaft, firstly, the filling material 9 is composed of a plurality of 'copper rings and ceramic fiber rings immersed in carbon powder', the copper rings play a guiding role and a uniform supporting role, can ensure that each group of filling material in the axial direction can be uniformly stressed, the ceramic fiber rings immersed in carbon powder can be extruded and have elasticity, the friction coefficient can be adjusted through the expansion amount, secondly, the size of the filling material 9 can be correspondingly adjusted according to the dimensional tolerance of the outer steel sleeve 3 and the inner steel sleeve 11, and finally, even if the filling material 9 is selected according to the calculation result to perform the repair, the cost is about 60% of the estimated cost.

Therefore, the existing safety catcher has no great value in repairing the original structure, parts are replaced by new safety catcher parts in the scrap principle, and the cost of spare part maintenance is increased.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model aims at providing kind of hot rolling finish straightener is with anti-skidding safe catcher device, can avoid former finishing straightener to use anti-skidding safe catcher repairing cost too high, realize the anti-skidding safe catcher for finishing straightener of low-cost maintenance and change of being convenient for.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

antiskid safety catcher for hot rolling fine straightener, which is arranged on the main shaft and the transmission shaft, comprises an outer ring steel bushing, an inner steel bushing and a plurality of directional torsion pins;

the inner steel sleeve is sleeved on the outer side of the transmission shaft, the outer ring steel sleeve is arranged on the outer side of the inner steel sleeve, a filling abrasive is arranged between the outer ring steel sleeve and the inner steel sleeve, the end of the outer ring steel sleeve is connected to the main shaft through a fastening bolt, and the main shaft is connected with the transmission shaft through a special bolt and a nut;

the outer ring steel sleeve and the inner steel sleeve are circumferentially and upwards provided with a plurality of corresponding mounting pin holes which are uniformly distributed, each mounting pin hole is internally provided with a directional torsion pin, and the outer ring steel sleeve and the inner steel sleeve are fixed through the directional torsion pins.

3-6 directional torsion pins are arranged.

The directional torsion pins comprise shearing sections, upper mounting sections connected to the upper ends of the shearing sections and lower mounting sections connected to the lower ends of the shearing sections.

The upper mounting section is located in the mounting pin hole in the circumferential direction of the outer ring steel sleeve, and the lower mounting section is located in the mounting pin hole in the circumferential direction of the inner steel sleeve.

The upper mounting section diameter D1 > the lower mounting section diameter D2 > the shear section diameter D.

The length L of the directional torsion pin is as follows:

l ═ 3d + C1, where C1 is a constant selected to range between 2mm and 5 mm.

The diameter d of the shearing section is as follows:

D-D1-C2, wherein C2 is a constant selected from the range of 1mm to 4 mm.

The lower mounting section diameter D2 is:

d2 ═ D1-C3, where C3 is a constant selected from the range of 0.05mm to 0.5 mm.

The width of the shearing section is selected from the range of 1mm to 5 mm.

The utility model provides an kind of hot rolling finish straightener is with anti-skidding safe catcher device sets up a plurality of definite torque round pins and installation pinhole through the circumference at outer steel bushing and interior steel bushing, can avoid former finishing straightener to use anti-skidding safe catcher repairing cost too high, and its maintenance cost is low, as long as change definite torque round pin, can be at used repeatedly after repairing the adjustment.

Drawings

FIG. 1 is a schematic illustration of a large roll cassette work roll on a prior art leveler;

FIG. 2 is a schematic view of a small roll cassette work roll of a prior art leveler;

FIG. 3 is a schematic view of a safety catch on a prior art straightener;

fig. 4 is a schematic view of the safety catch apparatus of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic diagram of a constant torque pin in the safety catcher device of the present invention.

Detailed Description

The following describes the technical solution of the present invention by reference to the drawings and examples .

Referring to fig. 4 to 6, the anti-skid safety catcher for types of hot rolling finish straightener provided by the present invention is installed on the main shaft 20 and the transmission shaft 21, and includes an outer ring steel sleeve 22, an inner steel sleeve 23, and a plurality of directional torsion pins 24.

Preferably, the inner steel sleeve 23 is sleeved on the outer circumference of the transmission shaft 21, the outer ring steel sleeve 22 is sleeved on the outer circumference of the inner steel sleeve 23, quantitative filling abrasive 25 is pressed between the outer ring steel sleeve 22 and the inner steel sleeve 23, the left end of the outer ring steel sleeve 22 is connected to the main shaft 20 through a fastening bolt 26, and the right end of the main shaft 20 is connected to the left end of the transmission shaft 21 through a special bolt 27 and a nut 28.

Preferably, a plurality of corresponding mounting pin holes with equal interval angles are formed in the outer ring steel sleeve 22 and the inner steel sleeve 23 in the circumferential direction, a directional torsion pin 24 is arranged in each mounting pin hole, and the outer ring steel sleeve 22 and the inner steel sleeve 23 are connected and fixed through the plurality of directional torsion pins 24.

Preferably, there may be 3-6 orientation torsion pins 24, and as shown in fig. 5, 5 orientation torsion pins 24 are installed at equal intervals.

Preferably, the directional torsion pins each include a cutting section 241, an upper mounting section 242 connected to an upper end of the cutting section 241, and a lower mounting section 243 connected to a lower end of the cutting section 241.

Preferably, the upper mounting section 242 is located in the circumferential upper mounting pin hole of the outer ring steel sleeve 22, and the lower mounting section 243 is located in the circumferential upper mounting pin hole of the inner steel sleeve 23.

Preferably, the diameter D1 of the upper mounting section 242 is larger than the diameter D2 of the lower mounting section 243 is larger than the diameter D of the shearing section 241.

Preferably, the length L of the directional torsion pin 24 is:

l ═ 3d + C1, where C1 is a constant selected to range between 2mm and 5 mm.

Preferably, the diameter d of the shearing section 241 is:

D-D1-C2, wherein C2 is a constant selected from the range of 1mm to 4 mm.

Preferably, the diameter D2 of the lower mounting section 243 is:

d2 ═ D1-C3, where C3 is a constant selected from the range of 0.05mm to 0.5 mm.

Preferably, the width k of the cutting segment 241 is selected to be in a range of 1mm to 5 mm.

To sum up, the utility model discloses safe catcher device sets up a plurality of constant torque round pins and installation pinhole through the circumference at outer steel bushing and interior steel bushing, can avoid former finishing straightener to use anti-skidding safe catcher repairing cost too high, and its maintenance cost is low, as long as change the constant torque round pin, can be at the used repeatedly after repairing the adjustment, the utility model discloses safe catcher device can be used in the transmission of iron and steel trade and mechanical industry, has very big application and pushes away and worth.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (9)

1, anti-skid safe catcher devices for a hot rolling finish straightener are arranged on a main shaft and a transmission shaft and are characterized by comprising an outer ring steel sleeve, an inner steel sleeve and a plurality of directional torsion pins;

the inner steel sleeve is sleeved on the outer side of the transmission shaft, the outer ring steel sleeve is arranged on the outer side of the inner steel sleeve, a filling abrasive is arranged between the outer ring steel sleeve and the inner steel sleeve, the end of the outer ring steel sleeve is connected to the main shaft through a fastening bolt, and the main shaft is connected with the transmission shaft through a special bolt and a nut;

the outer ring steel sleeve and the inner steel sleeve are circumferentially and upwards provided with a plurality of corresponding mounting pin holes which are uniformly distributed, each mounting pin hole is internally provided with a directional torsion pin, and the outer ring steel sleeve and the inner steel sleeve are fixed through the directional torsion pins.

2. The anti-skid safe catcher for the hot rolling finish straightener as claimed in claim 1, wherein 3-6 directional twist pins are provided.

3. The anti-slip safety catcher for hot-rolling finish-straightening machines as claimed in claim 2, wherein the directional torque pins each comprise a shear segment, an upper mounting segment connected to the upper end of the shear segment, and a lower mounting segment connected to the lower end of the shear segment.

4. The anti-skid safe catcher device for the hot rolling finish straightener as claimed in claim 3, wherein the upper mounting section is located in the mounting pin hole in the circumferential direction of the outer ring steel sleeve, and the lower mounting section is located in the mounting pin hole in the circumferential direction of the inner steel sleeve.

5. The antiskid safety handle device for hot rolling fine straightener as claimed in claim 3, wherein the diameter of the upper installation section D1 > the diameter of the lower installation section D2 > the diameter D of the shear section.

6. The anti-skid safe catcher for the hot rolling finish straightener as claimed in claim 5, wherein the length L of the directional twist pin is:

l ═ 3d + C1, where C1 is a constant selected to range between 2mm and 5 mm.

7. The anti-skid safe catcher for the hot rolling fine straightener as claimed in claim 5, wherein the diameter d of the shearing section is:

D-D1-C2, wherein C2 is a constant selected from the range of 1mm to 4 mm.

8. The anti-skid safe catcher for the hot rolling finish straightener as claimed in claim 5, wherein the diameter D2 of the lower mounting section is:

d2 ═ D1-C3, where C3 is a constant selected from the range of 0.05mm to 0.5 mm.

9. The anti-slip safe catcher device for hot-rolling finish-straightening machines as claimed in claim 3, wherein the width of the shearing section is selected from the range of 1mm to 5 mm.

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