CN203108986U

CN203108986U - Locking device

Info

Publication number: CN203108986U
Application number: CN 201320111212
Authority: CN
Inventors: 王荣军; 张金波; 李图学; 李跃林; 牛强
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2013-03-12
Filing date: 2013-03-12
Publication date: 2013-08-07
Anticipated expiration: 2023-03-12

Abstract

The utility model discloses a locking device which is characterized by comprising an installing plate. The installing plate is installed on an operational side cone shaft. A cylinder body is connected with the installing plate. The cylinder body is provided with an oil inlet, a piston is installed in the cylinder body, an oil cavity is formed by the piston and the cylinder body, and a hole for installing a spring is formed in the piston. One end of the spring is located in the hole, and the other end of the spring is contacted with a cylinder body end cover which is fixedly installed on the cylinder body. A key which can prevent the piston from rotating relative to the cylinder body is arranged between the piston and the cylinder body end cover. The piston is provided with a thread, a locking nut is in threaded connection with the piston, a hole groove is machined in a locking ring, a locking bolt penetrates through the hole groove to be connected with the piston, an inner hole of the locking ring is in an inner spline shape, and a groove is formed in the inner hole. The locking device is simple in structure and light in equipment weight, and equipment investment is reduced. The structure of hydraulic pressure plus mechanical locking is adopted, the safety is high, the stability is good, the accidents can be effectively reduced, the roller replacing time of a roll collar can be effectively shortened, and a use ratio of equipment is improved.

Description

A kind of locking device

Technical field

The utility model relates to the locking device that uses in a kind of section straightener.

Background technology

Section straightener structurally is divided into cantilever design and planer-type two big classes, align big specification section bar and generally adopt planer type structure, but there are problems such as roll changing time length, maintenance difficult in traditional gantry type profile steel straightener, has influenced rhythm of production in actual production, has reduced operating efficiency.

In recent years, domestic some company has introduced the novel gantry type profile steel straightener that offshore company manufactures and designs, the novel gantry type profile steel straightener of introducing relies on the frictional force between power transmission shaft and the smoothing roll conical surface to transmit moment of torsion, for the larger-size shaped steel of production specification, required straightening force is very big, thereby require locking device that very big coupling mechanism force is provided, employed locking device is the Full Automatic Liquid laminated structure, must carry out pressurize to the charge oil pressure of locking device in the use, if locking device oil pocket internal pressure is lower than 50 MPas, the loosening phenomenon of collars will appear.Therefore, very high to hydraulic system equipment such as specified operating pressure requirement such as pump group, valve member, seal and pipe fitting, in use, the hydraulic system equipment loss is quite big, thereby makes processing and manufacturing cost and the operation cost of whole leveller equipment higher.

The utility model content

The purpose of this utility model provides a kind of locking device for section straightener, can solve the loosening phenomenon of the collars that occurs easily in the aligning process.

In order to reach above purpose, by the following technical solutions: a kind of locking device, it is characterized in that: described device comprises the installing plate that is installed on the fore side axis of cone, cylinder body links to each other with installing plate, cylinder body has oil-in, piston is installed in the cylinder body, and piston and cylinder body constitute an oil pocket, the hole that has mounting spring on the piston; One end of spring is positioned at the hole, the other end contacts with cylinder end caps, cylinder end caps is packed on the cylinder body, be provided with the key that prevents that piston from rotating relative to cylinder body between piston and the cylinder end caps, have screw thread on the piston, locking nut is connected with piston thread, be processed with hole slot on the retaining ring, pass hole slot by lock-screw and be connected with piston, the endoporus of retaining ring is the internal spline shape, and has groove.

Be equipped with on the described piston and prevent the sealing ring revealed.

The utility model is simple in structure, weight of equipment is light, from having reduced equipment investment to a great extent.Adopt hydraulic pressure+mechanical interlocking structure, it is safe, good stability, effectively minimizing accident takes place.Use straightener of the present utility model to compare the roll changing time that traditional gantry type profile steel straightener can effectively shorten collars, improved utilization rate of equipment and installations, and then improved productivity ratio.

Description of drawings

Fig. 1 is to use gantry type profile steel straightener roll change view of the present utility model;

Fig. 2 is to use gantry type profile steel straightener working state schematic representation of the present utility model;

Fig. 3 is to use the Tiebar structure figure in the straightener of the present utility model;

Fig. 4 is the right view of Fig. 3;

Fig. 5 is structural representation of the present utility model;

Fig. 6 is the right view of Fig. 5;

Fig. 7 is the retaining ring schematic diagram in the utility model;

Fig. 8 is the cutaway view of A-A among Fig. 7.

Among the figure, 1 is the transmission side frame, and 2 is the transmission side axis of cone, 3 is the fore side frame, and 4 is the fore side axis of cone, and 5 are the collars assembling, 6 is pull bar, and 7 is locking device, and 8 is installing plate, 9 is cylinder body, and 10 is piston, and 11 is cylinder end caps, 12 is key, and 13 is spring, and 14 is locking nut, 15 is retaining ring, and 16 is lock-screw, and 17 is hole slot.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is illustrated:

As depicted in figs. 1 and 2, novel gantry type profile steel straightener mainly is made of transmission side frame 1, the transmission side axis of cone 2, fore side frame 3, the fore side axis of cone 4, collars assembling 5, pull bar 6, locking device 7 etc.;

The transmission side axis of cone 2 is installed in the described transmission side frame 1, and the fore side axis of cone 4 is installed in the fore side frame 3, and an end of pull bar 6 is threaded with the transmission side axis of cone 2;

One end of pull bar 6 is processed as external splines shape as shown in Figure 3 and Figure 4, and is processed with groove;

To shown in Figure 8, locking device 7 mainly comprises installing plate 8, cylinder body 9, piston 10, cylinder end caps 11, key 12, spring 13, locking nut 14, retaining ring 15 and lock-screw 16 as Fig. 5;

Installing plate 8 is installed on the fore side axis of cone 4 by bolt, and cylinder body 9 installs by bolt and installing plate 8;

Be processed with oil-in on the cylinder body 9, described piston 10 is installed in the described cylinder body 9, and both constitute an oil pocket jointly; On the described piston 10 sealing ring is installed, prevents from revealing; Be processed with the hole of a plurality of mounting spring 13 on the described piston 10;

Described cylinder end caps 11 is packed on the cylinder body 9 by bolt, is provided with key 12 between described piston 10 and the described cylinder end caps 11 and prevents that described piston 10 from rotating relative to cylinder body 9;

Be processed with screw thread on the described piston 10, can be threaded with locking nut 14;

Retaining ring 15 is installed on the described piston 10, and can upwards rotate in week with respect to described piston 10; The endoporus of retaining ring 15 is processed as internal spline shape as shown in Figure 7, and is processed with groove;

Described lock-screw 16 is installed on the described piston 10 after passing the hole slot 17 of described retaining ring 15, realize retaining ring 15 in the institute's anglec of rotation that makes progress in week with the hole slot acting in conjunction of described retaining ring 15, so as to make retaining ring 15 can block fast with pull bar 6 and/stack.

Coupling mechanism force by 7 pairs of pull bars 6 of locking device, the transmission side axis of cone 2 and the fore side axis of cone 4 are pushed collars assembling 5 jointly, make the transmission side axis of cone 2 assemble 5 conical contact faces to collars jointly with the fore side axis of cone 4 and produce frictional force, reach the purpose of transmitting moment of torsion.

The replacing process of collars assembling 5 is as follows:

One, dismounting collars assembling 5:

1, unclamps lock-screw 16;

2, in the cavity of cylinder body 9 and piston 10 formations, squeeze into hydraulic oil, under the effect of oil pressure, piston 10 is given retaining ring 15 thrusts, therefore retaining ring 15 is in superposed state with pull bar 6 time, pull bar 6 is elongated under the pulling force effect of retaining ring 15, causes the extruding force between locking nut 14 and the cylinder end caps 11 to disappear;

3, the rotation lock nut 14, make between locking nut 14 and the cylinder end caps 11 and produce certain interval;

4, stop to beat hydraulic oil, under the effect of spring 13, piston 10 is got back to original position, and at this moment, the coupling mechanism force between retaining ring 15 and the pull bar 6 disappears;

5, the rotation lock ring 15, make lock-screw 16 to position N, make retaining ring 15 and pull bar 6 be in card and state;

6, move operation side frame 3 waits collars assembling 5 to be replaced to roll change position shown in Figure 1;

Two, locking collars assembling 5:

1, wait to move into new collars assembling 5 after, move operation side frame 3 is to operating position shown in Figure 2;

2, the rotation lock ring 15, make lock-screw 16 to position M, and this moment, retaining ring 15 was in superposed state with pull bar 6, and the thread groove of the thread groove of retaining ring 15 and pull bar 6 is also fitted mutually simultaneously;

3, in the cavity of cylinder body 9 and piston 10 formations, squeeze into hydraulic oil, under the effect of oil pressure, piston 10 is given retaining ring 15 thrusts, therefore retaining ring 15 is in superposed state with pull bar 6 time, pull bar 6 is elongated under the pulling force effect of retaining ring 15, causes between locking nut 14 and the cylinder end caps 11 and produces the gap;

4, the rotation lock nut 14, make 14 pairs of cylinder end caps of locking nut 11 produce coupling mechanism force;

5, stop to beat hydraulic oil;

6, tighten lock-screw 16.

Claims

1. locking device, it is characterized in that: described device comprises the installing plate that is installed on the fore side axis of cone, cylinder body links to each other with installing plate, cylinder body has oil-in, piston is installed in the cylinder body, and piston and cylinder body constitute an oil pocket, the hole that has mounting spring on the piston; One end of spring is positioned at the hole, the other end contacts with cylinder end caps, cylinder end caps is packed on the cylinder body, be provided with the key that prevents that piston from rotating relative to cylinder body between piston and the cylinder end caps, have screw thread on the piston, locking nut is connected with piston thread, be processed with hole slot on the retaining ring, pass hole slot by lock-screw and be connected with piston, the endoporus of retaining ring is the internal spline shape, and has groove.