A kind of auxiliary device and method for installing the locking cylinder spring group of the head cutting flying shear

Abstract

The present invention belongs to the technical field of steel production, and relates to an auxiliary device and method for installing a locking cylinder spring group of a shearing head. The auxiliary device for installing a locking cylinder spring group of a shearing head is used to install the locking cylinder spring group in groups. The auxiliary device for installing a locking cylinder spring group of a shearing head comprises a frame, a hydraulic jack, a hydraulic pump, and a top cylinder. The rotating drum of the shearing head is placed in the frame. The hydraulic jack is connected to the hydraulic pump, and the extension and retraction of the hydraulic jack is controlled by the hydraulic pump. The hydraulic jack is fixed in the frame, and the extension and retraction direction faces the rotating drum. One end of the top cylinder is connected to the hydraulic pump, and the other end is pressed against the upper end of the locking cylinder spring. During installation, the hydraulic jack compresses the locking cylinder spring through the top cylinder to install the assembly. The present invention adopts an installation auxiliary device. After the spring assembly is pressed against the spring assembly by the hydraulic jack, the clamping plate and the pressure plate can be installed conveniently and quickly, and the installation of the spring assembly can be completed quickly, reducing labor intensity and improving efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of steel production, and relates to an auxiliary device and method for installing a spring group of a locking oil cylinder of a head shear. Background Art

[0002] The rotary drum shear is widely used in the hot rolling production lines of steel enterprises because of its good rotation balance, high shearing speed, the ability to be equipped with two pairs of shear blades for cutting the head and tail respectively, the ability to quickly replace the shear blades, and the convenience and reliability of maintenance and use.

[0003] The shear blade is worn out after a period of use and needs to be replaced with a new one. The replaced shear blade can be used again after being re-sharpened. Therefore, a reliable shear blade locking mechanism needs to be installed on the drum to ensure that the shear blade is reliably connected to the drum when the flying shear is working, and to ensure that the shear blade can be quickly separated from the drum and replaced with a new one when the shear blade is replaced. The existing head shear has 48 locking cylinders, which are replaced manually. Replacing the spring assembly on the drum is time-consuming and labor-intensive, and inefficient. Summary of the invention

[0004] In view of this, the purpose of the present invention is to solve the installation problem of the spring assembly on the drum and to provide an auxiliary device and method for installing the spring group of the locking cylinder of a head shear.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A crop shear locking cylinder spring assembly installation auxiliary device comprises a frame, a hydraulic jack, a hydraulic pump and a jack barrel; the rotary drum of the crop shear is placed in the frame; the hydraulic jack is connected to the hydraulic pump and the extension and retraction of the hydraulic jack is controlled by the hydraulic pump; the hydraulic jack is fixed in the frame and the extension and retraction direction faces the rotary drum; one end of the jack barrel is connected to the hydraulic pump and the other end is pressed against the upper end of the locking cylinder spring; during installation, the hydraulic jack compresses the locking cylinder spring through the jack barrel to install the assembly.

[0007] Furthermore, the inner diameter of the top cylinder is larger than the outer diameter of the screw of the spring assembly on the drum, and the outer diameter of the top cylinder is smaller than the inner diameter of the clamping plate clamping the end surface of the spring assembly.

[0008] Furthermore, the hydraulic pump is a hand-cranked hydraulic pump, which is provided with an operating handle, and the liquid is pumped by operating the handle.

[0009] Furthermore, a pressure gauge is provided at the outlet of the hydraulic pump for monitoring the pressure.

[0010] Furthermore, the frame includes a bottom plate and a top plate; the bottom plate and the top plate are fixedly connected by connecting rods to form a frame structure; the hydraulic top is fixed on the top plate, and the drum of the head shear is placed on the bottom plate.

[0011] A method for installing a locking cylinder spring assembly of a cropping flying shear, using the above-mentioned cropping flying shear locking cylinder spring assembly installation auxiliary device to install the locking cylinder spring assembly, comprising the following steps:

[0012] S1. First, assemble the screw rod and the round nut, and install the stop bolt; install the locking cylinder springs on the screw rod in sequence according to the number required by the design drawing to form a spring assembly, and assemble all 24 groups;

[0013] S2. Install the spring assembly into the distance sleeve body in multiple times, 6 groups at a time;

[0014] The spring pressure rings are installed in groups S3 and 6 in sequence. After installation, the groove for installing the card plate is blocked by the spring pressure ring. At this time, the hydraulic pump is started to press the spring assembly down through the top cylinder to expose the groove for installing the card plate.

[0015] S4. Install the clamping plate in the groove and fasten the clamping plate to the spring pressure ring with screws;

[0016] S5. Repeat steps S3 and S4 until all spring components are installed.

[0017] Furthermore, the pressure of the hydraulic gauge is controlled at 5 to 10 MPa. The same pressure is used when each pallet is installed, and the pressure is used to detect whether the elastic force of the spring is too large.

[0018] Furthermore, screw anti-loosening glue is applied to the connecting screws between the pressure plate and the spring pressure ring to prevent the screws from loosening.

[0019] The beneficial effects of the present invention are:

[0020] The present invention adopts a special head cutting flying shear locking oil cylinder spring group installation auxiliary device, after the spring assembly is pressed by hydraulic jack, the clamping plate and the pressing plate can be installed conveniently and quickly, the spring assembly installation can be completed quickly, the labor intensity is reduced, and the efficiency is improved.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0023] Figure 1It is a schematic diagram of the auxiliary device for installing the locking cylinder spring group of the head shear in the present invention.

[0024] Figure 2 Enlarged view of the spring assembly.

[0025] Marking instructions: 1-bottom plate; 2-top plate; 3-nut; 4-connecting rod; 5-spring assembly; 6-clamp plate; 7-spring pressure ring; 8-screw; 9-pressure plate; 10-top cylinder; 11-hydraulic top; 12-hand hydraulic pump; 13-drum; 14-pressure gauge; 15-screw; 16-round nut; 17-fixed distance sleeve body. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figures 1-2, which is an auxiliary device for installing a locking cylinder spring group of a cropping shear, comprising a frame, a hydraulic jack 11, a hydraulic pump, and a top cylinder 10; the rotating drum 13 of the cropping shear is placed in the frame; the hydraulic jack 11 is connected to the hydraulic pump, and the extension and retraction of the hydraulic jack 11 is controlled by the hydraulic pump; the hydraulic jack 11 is fixedly installed in the frame, and the extension and retraction direction is toward the rotating drum 13; one end of the top cylinder 10 is connected to the hydraulic pump, and the other end is pressed against the upper end of the locking cylinder spring; during installation, the hydraulic jack 11 compresses the locking cylinder spring through the top cylinder 10 to install the component.

[0030] The inner diameter of the top cylinder 10 is larger than the outer diameter of the screw 15 of the spring assembly 5 on the drum 13, and the outer diameter of the top cylinder 10 is smaller than the inner diameter of the clamping plate 6 clamping the end face of the spring assembly 5. The hydraulic pump is a hand-cranked hydraulic pump 12, which is provided with an operating handle, and the liquid is pumped by operating the handle. A pressure gauge 14 is provided at the outlet of the hydraulic pump for monitoring the pressure.

[0031] The frame includes a bottom plate 1 and a top plate 2; the bottom plate 1 and the top plate 2 are fixedly connected by connecting rods 4 and nuts 3 to form a frame structure; the hydraulic jack 11 is fixedly arranged on the top plate 2, and the drum 13 of the head shear is placed on the bottom plate 1.

[0032] A method for installing a locking cylinder spring assembly of a cropping flying shear, using the cropping flying shear locking cylinder spring assembly installation auxiliary device of the present embodiment to install the locking cylinder spring assembly, comprising the following steps:

[0033] S1. First, assemble the screw rod 15 and the round nut 16, and install the stop bolt; install the locking cylinder springs on the screw rod 15 in sequence according to the number required by the design drawing to form a spring assembly 5, and assemble all 24 groups;

[0034] S2, install the spring assembly 5 into the distance sleeve body 17, install it in multiple times, and install 6 groups at a time;

[0035] The spring pressure ring 7 is installed in groups S3 and 6 in sequence. After installation, the groove for installing the card plate 6 is blocked by the spring pressure ring 7. At this time, the hydraulic pump is started, the pressure of the hydraulic gauge is controlled at 5 MPa, and the spring assembly 5 is pressed down through the top cylinder 10 to expose the groove for installing the card plate 6. At the same time, the same pressure is used when installing each card plate 6, and the pressure is used to detect whether the elastic force of the spring is too large. If it is not pressed in place, it proves that the elastic force is too large, and the spring gasket can be adjusted to solve it.

[0036] S4. Install the clamping plate 6 in the groove, and fasten the pressure plate 9 to the spring pressure ring 7 through the screws 8, and apply the screw 8 anti-loosening glue on the screws 8 to prevent the screws 8 from loosening.

[0037] S5. Repeat steps S3 and S4 until all spring assemblies 5 are installed.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A head shear locking cylinder spring assembly installation auxiliary device, characterized in that: It includes a frame, a hydraulic jack, a hydraulic pump, and a jack cylinder; the drum of the head shear is placed in the frame; the hydraulic jack is connected to the hydraulic pump, and the extension and retraction of the hydraulic jack is controlled by the hydraulic pump; the hydraulic jack is fixed in the frame, and the extension and retraction direction is toward the drum; one end of the jack cylinder is connected to the hydraulic pump, and the other end is pressed against the upper end of the locking cylinder spring; during installation, the hydraulic jack compresses the locking cylinder spring through the jack cylinder to install the assembly; the inner diameter of the jack cylinder is larger than the outer diameter of the screw of the spring assembly on the drum, and the outer diameter of the jack cylinder is smaller than the inner diameter of the clamping plate that clamps the end face of the spring assembly; a pressure gauge is provided at the outlet end of the hydraulic pump for monitoring the pressure.

2. The auxiliary device for installing the locking cylinder spring assembly of the cropping shear according to claim 1 is characterized in that: The hydraulic pump is a hand-cranked hydraulic pump, which is provided with an operating handle, and the handle is used to operate the pumping liquid.

3. The auxiliary device for installing the locking cylinder spring assembly of the cropping shear according to claim 1 is characterized in that: The frame comprises a bottom plate and a top plate; the bottom plate and the top plate are fixedly connected by connecting rods to form a frame structure; the hydraulic jack is fixedly arranged on the top plate, and the rotary drum of the head shear is placed on the bottom plate.

4. A method for installing a spring assembly of a locking oil cylinder of a cropping shear, characterized in that: The installation of the locking cylinder spring assembly of the cropping flying shear is performed using the auxiliary device for installing the locking cylinder spring assembly as claimed in any one of claims 1 to 3, comprising the following steps: S1. First, assemble the screw rod and the round nut, and install the stop bolt; install the locking cylinder springs on the screw rod in sequence according to the number required by the design drawing to form a spring assembly, and assemble all 24 groups; S2. Install the spring assembly into the distance sleeve body in multiple times, 6 groups at a time; The spring pressure rings are installed in groups S3 and 6 in sequence. After installation, the groove for installing the card plate is blocked by the spring pressure ring. At this time, the hydraulic pump is started to press the spring assembly down through the top cylinder to expose the groove for installing the card plate. S4. Install the clamping plate in the groove and fasten the clamping plate to the spring pressure ring with screws; S5. Repeat steps S3 and S4 until all spring components are installed.

5. The method for installing a locking cylinder spring assembly of a cropping shear according to claim 4 is characterized in that: Control the pressure of the hydraulic gauge at 5~10 MPa. Use the same pressure when installing each pallet, and use this pressure to detect whether the spring force is too large.

6. The method for installing a locking cylinder spring assembly of a cropping shear according to claim 4, characterized in that: Apply screw anti-loosening glue on the connecting screws between the pressure plate and the spring pressure ring to prevent the screws from loosening.

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