Tensioning device for locking base of circle shear

Abstract

The utility model discloses a tensioning device for locking a base of a circle shear, and belongs to the field of metallurgical equipment manufacturing. The pull rod penetrates through a hole of the pressing plate, the lower portion of the pull rod locks the pressing plate and the pull rod together through a nut, the upper portion of the pull rod is in threaded connection with the disc spring installation rod, the disc spring installation rod is sleeved with the sleeve, the disc spring is installed in the middle of the disc spring installation rod, and the upper end face and the lower end face of the disc spring in the free extending state abut against the step face of the disc spring installation rod respectively. The sleeve is installed on the sliding table through a screw, and the oil cylinder is installed on the sleeve through a screw. The two sides of the pressing plate are provided with grooves connected with a copper sliding plate which is arranged between the pressing plate and the sliding table. When the disc shear is in a working state, the disc spring can continuously apply upward pulling force to the pressing plate, friction force between the pressing plate and the sliding table is increased, and sliding of the sliding table is fixed; when the opening degree of the circle shear is adjusted, the oil cylinder drives the pressing plate and the copper sliding plate to move downwards at the same time, the pressing plate and the sliding table are loosened, the sliding table can stably slide on the base, and the plate and strip shearing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment manufacturing, in particular to a tensioning device used for locking a disc shear base. Background Art

[0002] The disc shear equipment is a high-precision and professional equipment. It can continuously cut the edge of the strip longitudinally to improve the quality of the edge of the strip. Its operating stability is directly related to the shearing quality of the edge of the plate and strip. As an important equipment for the disc shear, the knife box is connected to the base. The movement of its slide can adjust the size of the opening. When working, the knife box can be fixed by fixing the slide to ensure the stability of the knife box. The existing disc shear base locking device without tensioning structure uses a cylinder to directly tighten the base, which makes the disc shear leak oil after long-term use, resulting in unstable tension. After the disc shear has adjusted the opening, the slide stability is poor, which directly affects the stability of the knife box during operation, thereby reducing the shearing quality of the plate and strip. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model aims to provide a tensioning device for locking the base of a circular shear to ensure the shearing quality of a plate strip passing through the circular shear.

[0004] To achieve the above-mentioned purpose of the invention, the pull rod of the tensioning device of the utility model passes through the hole of the pressure plate, and the lower part is locked together with the pressure plate and the pull rod by a nut, the upper part of the pull rod is threadedly connected with the lower part of the disc spring mounting rod, the disc spring mounting rod is sleeved in the sleeve, the disc spring is installed in the middle part of the disc spring mounting rod, and the upper and lower end surfaces of the disc spring in the freely extended state are respectively abutted against the stepped surfaces of the disc spring mounting rod, the sleeve is installed on the slide by screws, and the cylinder is installed on the sleeve by screws; grooves are opened on both sides of the pressure plate to connect with the copper slide plate, and the copper slide plate is installed between the pressure plate and the slide plate.

[0005] Furthermore, the pressure plate is a trapezoidal wedge structure.

[0006] Furthermore, the disc spring is a combined disc spring structure.

[0007] Furthermore, the tensioning devices are installed on both sides of the slide in the width direction, and a plurality of tensioning devices are arranged along the length direction of the slide.

[0008] Furthermore, the slide table and the base are slidably connected via a copper slide plate.

[0009] Compared with the prior art, the utility model has the following advantages. When the tensioning device is in the working state of the disc shear, the disc spring can continuously give the pressure plate an upward pulling force, thereby increasing the friction between the pressure plate and the slide table to fix the slide of the slide table, and effectively solves the problem of unloading force due to oil leakage in the direct tensioning method of the oil cylinder; and when the opening degree of the disc shear is adjusted, the oil cylinder moves, driving the pressure plate and the copper slide plate to move downward at the same time, so that the pressure plate and the slide table are loosened, and the slide table can slide smoothly on the base, thereby ensuring the shearing quality of the plate strip passing through the disc shear. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a simplified structural diagram of the utility model.

[0011] Figure 2 for Figure 1 Side view of.

[0012] Figure 3 for Figure 1 BB cross-sectional view.

[0013] Figure 4 yes Figure 3 An enlarged view of the tensioning device.

[0014] In the figure: 1. disc spring; 2. oil cylinder; 3. copper slide plate; 4. slide table; 5. disc scissors box; 6. pressure plate; 7. base; 8. pull rod; 9. nut; 10. disc spring mounting rod; 11. sleeve. DETAILED DESCRIPTION

[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the tensioning devices of the present invention are installed on both sides of the slide 4 in the width direction, and multiple tensioning devices are arranged along the length direction of the slide 4.

[0016] The pull rod 8 of the tensioning device passes through the hole of the pressure plate 6, and the nut 9 is used to lock the pressure plate 6 and the pull rod 8 together at the bottom. The upper part of the pull rod 8 is threadedly connected with the lower part of the disc spring mounting rod 10, and the disc spring mounting rod 10 is sleeved in the sleeve 11; the disc spring 1 is installed in the middle part of the disc spring mounting rod 10. When the disc spring 1 is in a freely extended state, its upper and lower end faces are respectively against the stepped surfaces of the disc spring mounting rod 10. The disc spring 1 is a combined disc spring structure, and the required tension can be achieved through different combinations. The disc spring 1 is in a freely extended state when the disc scissors box 5 is in a working state, and continuously applies thrust to the disc spring mounting rod 10, so that the disc spring mounting rod 10 generates an upward pulling force together with the pull rod 8. Thereby, the slide 4 is fixed so that it will not slide; the sleeve 11 is installed on the slide 4 by screws, and the cylinder 2 is installed on the sleeve 11 by screws. The piston rod of the cylinder 2 extends out to apply thrust to the disc spring mounting rod 10, compressing the disc spring 1, and the pressure plate 6 and the slide 4 are loosened, so that the disc spring 1 does not generate an upward pulling force. The slide 4 will not be resisted by the upward pulling force of the disc spring 1 during the sliding process, so that the slide 4 runs smoothly; grooves are opened on both sides of the pressure plate 6 and connected to the copper slide plate 3, and the copper slide plate 3 is installed between the pressure plate 6 and the slide 4. The copper slide plate 3 can reduce the friction of the slide 4 when sliding, so that it runs smoothly. The pressure plate 6 is a trapezoidal wedge block structure; the slide 4 and the base 7 are slidably connected by the copper slide plate 3.

[0017] When the tensioning device is in the tensioning state, that is, when the disc shear box 5 is working, the continuous upward pulling force of the disc spring 1 causes the pull rod 8 to pull the pressure plate 6 upward. The disc spring 1 increases the friction between the pressure plate 6 and the slide 4 through the continuous upward pulling force to fix the slide 4. The disc spring 1 continuously applies force to lock the slide 4. When the opening degree of the disc shear is adjusted, the piston rod of the oil cylinder 2 extends to transmit power to the disc spring mounting rod 10, and the pull rod 8 moves downward, driving the pressure plate 6 and the copper slide plate 3 to move downward at the same time, so that the pressure plate 6 and the slide 4 are loosened, and the slide 4 can slide smoothly on the base 7, and then the opening degree of the disc shear can be adjusted.

[0018] The tensioning device of the utility model ensures the stable sliding between the slide 4 and the base 7 through the continuous force of the disc spring 1, and effectively solves the problem of unloading force due to oil leakage when using the direct tensioning method of the oil cylinder.

Claims

1. A tensioning device for locking a disc shear base, characterized in that: The pull rod (8) of the tensioning device passes through the hole of the pressure plate (6), and the lower part is locked together with the pressure plate (6) and the pull rod (8) by a nut (9). The upper part of the pull rod (8) is threadedly connected to the lower part of the disc spring mounting rod (10). The disc spring mounting rod (10) is sleeved in the sleeve (11). The disc spring (1) is installed in the middle part of the disc spring mounting rod (10). The upper and lower end surfaces of the disc spring (1) in a freely extended state are respectively abutted against the stepped surfaces of the disc spring mounting rod (10). The sleeve (11) is installed on the slide (4) by screws, and the cylinder (2) is installed on the sleeve (11) by screws. The pressure plate (6) has grooves on both sides connected to the copper slide plate (3), and the copper slide plate (3) is installed between the pressure plate (6) and the slide table (4).

2. A tensioning device for locking a disc shear base according to claim 1, characterized in that: The pressing plate (6) is a trapezoidal wedge structure.

3. A tensioning device for locking a disc shear base according to claim 1, characterized in that: The disc spring (1) is a combined disc spring structure.

4. A tensioning device for locking a disc shear base according to claim 1, characterized in that: The tensioning devices are installed on both sides of the slide table (4) in the width direction, and a plurality of tensioning devices are arranged along the length direction of the slide table (4).

5. The tensioning device for locking the base of a circular shear according to claim 1, characterized in that: The slide table (4) and the base (7) are slidably connected via a copper slide plate (3).

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