Structure for improving shearing capacity of hydraulic shear

Abstract

The utility model relates to a structure for improving the shearing capacity of a hydraulic shear, which is arranged on the outer side of an upper shearing part of the hydraulic shear and comprises a movable frame, a back wheel set distributed along the longitudinal direction is arranged on the movable frame, and the movable frame is pushed by an elastic piece stretching along the transverse direction to move towards the upper shearing part of the hydraulic shear. And the back wheel set is abutted against the outer side of the upper shearing part of the hydraulic shear. The movable frame is in a horizontal U shape with an opening facing the upper shearing portion of the hydraulic shear, a longitudinal supporting shaft is arranged at the opening end of the movable frame, the back wheel set comprises a plurality of back wheels evenly distributed at intervals in the longitudinal direction, and the back wheels are rotatably installed on the longitudinal supporting shaft. The hydraulic shear is reasonable in design, the back wheel set is arranged on the outer side of the upper shearing portion of the hydraulic shear, the hydraulic shear can adapt to shearing of thin materials and thick materials at the same time, and the quality of the shearing end face can be guaranteed.

Description

Technical field:

[0002] The utility model relates to a structure for improving the shearing capacity of hydraulic shears. Background technology:

[0004] Aluminum sheet and strip is an important basic material. It is mainly made of aluminum as the main raw material and mixed with other alloy elements to produce aluminum sheets or aluminum strips. It has been widely used in aerospace, construction, transportation, electronics and other industries. During the processing of aluminum sheet and strip, it will be cut according to the required length, which requires the use of hydraulic shears. In the existing hydraulic shears, since the aluminum sheet and strip have a certain thickness, the aluminum sheet and strip will produce an outward extrusion force on the upper shearing part of the hydraulic shear during the shearing process. In order to adapt to the extrusion force of the aluminum sheet and strip during the shearing process, the upper shearing part of the hydraulic shear is usually designed to be clearance-matched with the knife seat, so that the upper shearing part of the hydraulic shear is deflected outward during the downward movement.

[0005] However, when the hydraulic shears are used to shear extremely thin (0.1 mm thick) aluminum strips, the distance between the upper and lower shearing parts of the shearing machine is much larger than the thickness of the aluminum strips. When the upper shearing part of the shearing machine moves downward to perform the shearing operation, the upper shearing part of the shearing machine swings outward at a large angle, which easily leads to unsatisfactory shearing surface quality, that is, the hydraulic shears are not suitable for shearing extremely thin aluminum strips. Therefore, it is necessary to improve this technical problem, and this case is born. Utility model content:

[0007] The utility model aims to improve the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the utility model is to provide a structure for improving the shearing capacity of hydraulic shears.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a structure for improving the shearing capacity of the hydraulic shears, which is arranged on the outside of the upper shearing part of the hydraulic shears, and includes a movable frame, on which a back-rest wheel group distributed along the longitudinal direction is provided. The movable frame is pushed by an elastic member that extends and contracts along the transverse direction to move toward the upper shearing part of the hydraulic shears so that the back-rest wheel group abuts against the outside of the upper shearing part of the hydraulic shears.

[0009] Furthermore, the movable frame is in a horizontal U-shape with its opening facing the upper shearing part of the hydraulic shear, a longitudinal support shaft is provided at the open end of the movable frame, and the back-rest wheel group includes a plurality of back-rest wheels evenly spaced along the longitudinal direction, and the plurality of back-rest wheels are rotatably mounted on the longitudinal support shaft.

[0010] Furthermore, it also includes a support seat body, which is in a horizontal U-shape with its opening facing the upper shearing part of the hydraulic shear; the movable frame is arranged in the inner cavity of the support seat body, and the movable frame and the support seat body slide in cooperation in the transverse direction; and a plurality of back wheels extend from the opening of the support seat body.

[0011] Furthermore, a plurality of guide bolts evenly spaced along the longitudinal direction are inserted between one end of the movable frame away from the opening and another end of the support seat body away from the opening, and the elastic member includes a plurality of compression springs evenly spaced along the longitudinal direction, and the plurality of compression springs correspond to the positions of the plurality of guide bolts. The compression springs are sleeved on the outer sides of the guide bolts at corresponding positions, and the two ends of the compression springs are respectively in contact with the movable frame and the support seat body.

[0012] Furthermore, the bolt head of the guide bolt is located on the inner side of the movable frame, and one end of the guide bolt away from the bolt head extends out of the support seat body and is threadedly connected with a limiting nut.

[0013] Compared with the prior art, the utility model has the following effects: the utility model is reasonably designed, and by arranging a backing wheel group on the outer side of the upper shearing part of the hydraulic shear, it can adapt to shearing thin materials and thick materials at the same time, and can ensure the quality of the shearing end surface. Description of the drawings:

[0015] Figure 1 It is a schematic diagram of the main cross-sectional structure of an embodiment of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of an embodiment of the utility model. Specific implementation method:

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] like Figures 1-2As shown, the utility model is a structure for improving the shearing capacity of a hydraulic shear, which is arranged on the outside of the upper shearing part 1 of the hydraulic shear, and specifically includes a movable frame 2 that can move in the transverse direction, and a back-supporting wheel group 3 distributed in the longitudinal direction is arranged on the movable frame 2, and the movable frame 2 is pushed by an elastic member 4 that stretches in the transverse direction to move toward the upper shearing part 1 of the hydraulic shear, so that the back-supporting wheel group abuts against the outside of the upper shearing part of the hydraulic shear. Under the action of elastic force, the back-supporting wheel group abuts against the upper shearing part of the hydraulic shear in the transverse direction. When shearing a thicker aluminum plate strip, the aluminum plate strip generates an outward extrusion force greater than the elastic force, and the back-supporting wheel group does not affect the shearing, and normal shearing can be completed at this time; when shearing an extremely thin aluminum plate strip, relying on the top support of the back-supporting wheel group, the upper shearing part of the hydraulic shear will not deflect outward, ensuring that normal shearing can be completed, that is: the structure can adapt to shearing thin materials and thick materials at the same time, and can ensure the quality of the shearing end surface.

[0021] It should be noted that when the back-up wheel set is not set, the hydraulic shear itself can be suitable for thick materials (aluminum plates and strips with thicker thickness). By adding the above-mentioned structure, it can adapt to the normal shearing of thin materials (aluminum plates and strips with thinner thickness) without adjusting the shear gap.

[0022] In this embodiment, the mobile frame 2 is in a horizontal U-shape with its opening facing the upper shearing part 1 of the hydraulic shear. A longitudinal support shaft 5 is provided at the open end of the mobile frame 2. The back-rest wheel group includes a plurality of back-rest wheels 6 evenly spaced along the longitudinal direction. The plurality of back-rest wheels 6 are rotatably mounted on the longitudinal support shaft 5. The back-rest wheels abut against the outer side surface of the upper shearing part of the hydraulic shear to form a rolling fit, thereby avoiding obstruction to the lifting and lowering of the upper shearing part of the hydraulic shear.

[0023] In this embodiment, it also includes a support base body 7, which is in a horizontal U-shape with its opening facing the upper shearing part 1 of the hydraulic shear; the movable frame 2 is arranged in the inner cavity of the support base body 7, and the movable frame 2 and the support base body 7 slide in cooperation in the transverse direction; and a plurality of back wheels 6 extend from the opening of the support base body 7.

[0024] In this embodiment, a plurality of guide bolts 8 evenly spaced in the longitudinal direction are inserted between the end of the mobile frame 2 away from the opening and the end of the support seat body 7 away from the opening, and the elastic member 4 includes a plurality of compression springs 9 evenly spaced in the longitudinal direction, and the plurality of compression springs 9 correspond to the positions of the plurality of guide bolts 8, and the compression springs 9 are sleeved on the outer side of the guide bolts 8 corresponding to the positions, and the two ends of the compression spring 9 are respectively in contact with the end of the mobile frame 2 away from the opening and the end of the support seat body 7 away from the opening. In normal state, the elastic force of the compression spring acts on the mobile frame, so that the backing wheel on the mobile frame can abut against the upper shearing part of the hydraulic shear.

[0025] In this embodiment, the bolt head of the guide bolt 8 is located inside the mobile frame 2, and the end of the guide bolt 8 away from the bolt head extends out of the support seat body 7 and is screwed with a limit nut 10. The setting of the limit nut can prevent the guide bolt from detaching from the support seat body. Further, a gasket is provided between the limit nut and the support seat body, and a pair of limit nuts are used.

[0026] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an one-piece molding process).

[0027] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0028] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A structure for improving the shearing capacity of a hydraulic shear, which is arranged outside the upper shearing part of the hydraulic shear, and is characterized by: The mobile frame comprises a moving frame on which a back-rest wheel group distributed in the longitudinal direction is arranged. The moving frame is pushed by an elastic member extending in the transverse direction to move toward the upper shearing part of the hydraulic shear so that the back-rest wheel group abuts against the outer side of the upper shearing part of the hydraulic shear.

2. A structure for improving the shearing capacity of hydraulic shears according to claim 1, characterized in that: The movable frame is in a horizontal U-shape with its opening facing the upper shearing part of the hydraulic shear, a longitudinal support shaft is arranged at the open end of the movable frame, and the back-rest wheel group comprises a plurality of back-rest wheels evenly spaced along the longitudinal direction, and the plurality of back-rest wheels are rotatably mounted on the longitudinal support shaft.

3. A structure for improving the shearing capacity of hydraulic shears according to claim 2, characterized in that: It also includes a support seat body, which is in a horizontal U-shape with its opening facing the upper shearing part of the hydraulic shear; the movable frame is arranged in the inner cavity of the support seat body, and the movable frame and the support seat body slide in cooperation in the transverse direction; and a plurality of back wheels extend from the opening of the support seat body.

4. The structure for improving the shearing capacity of hydraulic shears according to claim 3, characterized in that: A plurality of guide bolts evenly spaced longitudinally are provided between one end of the movable frame away from the opening and another end of the support seat body away from the opening. The elastic member comprises a plurality of compression springs evenly spaced longitudinally. The plurality of compression springs correspond to the positions of the plurality of guide bolts. The compression springs are sleeved on the outer sides of the guide bolts at corresponding positions. The two ends of the compression springs are respectively in contact with the movable frame and the support seat body.

5. The structure for improving the shearing capacity of hydraulic shears according to claim 4, characterized in that: The bolt head of the guide bolt is located on the inner side of the moving frame, and one end of the guide bolt away from the bolt head extends out of the support seat body and is screwed into a limiting nut.

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