CN220547707U - Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device - Google Patents

Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device Download PDF

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Publication number
CN220547707U
CN220547707U CN202322002651.1U CN202322002651U CN220547707U CN 220547707 U CN220547707 U CN 220547707U CN 202322002651 U CN202322002651 U CN 202322002651U CN 220547707 U CN220547707 U CN 220547707U
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China
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blade
cutter body
cutting edge
replaceable
edge
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CN202322002651.1U
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Chinese (zh)
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王俊
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European Shield Technology Co ltd
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European Shield Technology Co ltd
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Abstract

The utility model provides a shearing blade with a replaceable blade and a combined hydraulic breaking and dismantling device, the shearing blade with the replaceable blade comprises a blade body, an inner hexagon screw and a blade, the blade body is provided with a fan-shaped part, one end of the fan-shaped part is provided with a bending part, the other end of the fan-shaped part is provided with a step part connected with the bending part along the fan-shaped outline, the step part is provided with a plurality of fixing holes along the fan-shaped outline, the blade is provided with a butt joint edge, the outline size of the butt joint edge is equal to that of the fan-shaped part of the blade body, the blade is provided with a plurality of assembling holes matched with the fixing holes along the fan-shaped outline, the blade is assembled on the fan-shaped part of the blade body through the butt joint edge, the shearing force born by the blade during cutting action can be transferred to the blade body due to seamless butt joint, the blade body can protect the blade, the blade is prevented from deforming, and the blade body adopts a sink and hollow hole structure design, and the weight can be reduced.

Description

Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device
Technical Field
The utility model relates to the technical field of scissors, in particular to a shearing blade with a replaceable blade and a combined hydraulic breaking and dismantling device.
Background
The electric shears are hydraulic breaking tools for shearing metal materials such as steel bars in rescue and relief work; conventional electric shears employ an integral shearing blade, i.e., a blade formed directly on a cutter head to perform shearing. In this configuration, the entire blade needs to be replaced after the edge of the blade has been broken. The whole integral shearing blade is made of the same material, the first material is relatively expensive, the second material needs to be subjected to a heat treatment process, the cost consumed for manufacturing the blade is relatively high, and the weight of the integral shearing blade is relatively heavy.
For this reason, chinese patent CN208811194U proposes an electric cutter in which a conventional integrated cutter blade is replaced with a detachably connected connection pipe and a cutter blade; when the shearing blade is damaged, only the shearing blade needs to be replaced without dismantling the connecting pipe fitting. However, in this structure, since the body and the blade of the shearing blade are still integrated, the body itself still needs to occupy a large part of material and there is also a problem that heat consumption is excessive and processing is difficult when it is heat-treated together with the blade. In addition, the existing electric shears have only a single shearing function, but various tools such as shearing, expanding and the like are generally required in rescue and breaking. At present, different financial breaking functions are realized mainly by changing the form of a working head. However, the working heads, which are relatively large and all of metal materials, are very difficult to carry during rescue and are time-consuming and laborious to replace due to the connection between the working head and the cylinder piston, which is often more difficult, especially at rescue sites.
Disclosure of Invention
The utility model aims to solve the technical problems of providing a shearing blade with a replaceable blade and a combined hydraulic breaking and tearing device, which can solve the problems of industry development, heavy weight, material cost and heat treatment process, can more simply, conveniently and quickly replace the blade, increase the stability during working and save the cost.
The utility model provides a shearing blade with a replaceable blade, which comprises a blade body, an inner hexagon screw and a blade, wherein the blade body is provided with a fan-shaped part, one end of the fan-shaped part is provided with a bending part, the other end of the fan-shaped part is provided with a step part connected with the bending part along the fan-shaped outline, the step part is provided with a plurality of fixing holes along the fan-shaped outline, the blade is provided with a butt joint edge, the outline size of the butt joint edge is equal to that of the fan-shaped part of the blade body, the blade is provided with a plurality of assembling holes matched with the fixing holes along the fan-shaped outline, the blade is assembled on the fan-shaped part of the blade body through the butt joint edge, and the blade is fixedly connected to the blade body in a mode that the inner hexagon screw penetrates into the assembling holes and the fixing holes, so that the blade and the blade body can be separated under the condition of dismantling the inner hexagon screw.
Preferably: the cutter body gradually increases from one end far away from the bending part towards one end of the bending part, the outline shape of the step part is consistent with that of the bending part, and the butt joint edge of the cutting edge is attached to the step part of the cutter body and is in seamless butt joint.
Preferably: the cutter body is characterized in that a waist-shaped sinking groove is formed in the top surface of the cutter body, a plurality of engraved holes are formed in the bottom surface of the sinking groove towards the bottom surface of the cutter body, and the engraved holes are uniformly distributed along the waist-shaped outline of the sinking groove.
Preferably: the cutter body and the cutting edge are subjected to heat treatment process treatment, and the materials of the cutter body and the cutting edge are different.
Preferably: the cutter body is characterized in that a switching hole is formed in the bending part of the cutter body, a starting part is fixed at the tail end of the bending part, a starting hole is formed in the starting part, and the starting part and the bending part are distributed in an L-shaped position.
On the other hand, the utility model also provides a combined hydraulic breaking and disassembling device, which comprises an oil delivery pipe, a hydraulic body, a shearing blade with a hollowed-out hole and a tool head for expanding, wherein the shearing blade is provided with a replaceable cutting edge; the expanding tool head comprises two working arms, at least one mounting hole is formed in each working arm, and the at least one mounting hole is distributed corresponding to the hollowed holes in the sinking groove; the fixed shaft pin is connected with the mounting hole and the engraving hole, and the end part of the fixed shaft pin is fixed through the clamp spring so as to fixedly connect the working arm of the expanding tool head to the cutter body of the shearing blade with the replaceable cutting edge.
Preferably: the expanding tool head is any one of an expanding tool head, a crushing tool head and a shearing and expanding tool head.
Compared with the prior art, the utility model has the beneficial effects that:
the blade and the blade body are of a combined structure, namely, the blade can be detached from the blade body, firstly, the blade is convenient to polish, secondly, when the blade completely loses the cutting capability, the blade is convenient to detach and reassemble, a fan-shaped outline and a seamless connection mode along the fan-shaped outline are adopted between the blade and the blade body, so that the shearing force born by the blade during shearing operation can be reacted on the blade body, the blade bears larger reaction force to prevent deformation, so as to improve the strength of the blade, the shearing force born by the blade during the cutting operation can be transmitted on the blade body due to seamless butt joint, the blade body can protect the blade, the deformation of the blade is avoided, the blade body adopts a sink and engraving hole structural design, the weight can be reduced, and when the blade is applied to a portable tool, the blade is light in weight and convenient to carry, and meanwhile, the material is saved.
Drawings
FIG. 1 is a schematic view of the structure of the cutter body and the cutting edge assembled together in the present utility model;
FIG. 2 is a schematic view of the structure of the cutter body (bottom view) of the present utility model, showing the cutter body and the blade from FIG. 1 separated;
FIG. 3 is a schematic view of the structure of the utility model with the blade and the body shown in FIG. 1 separated and with only the blade viewed;
fig. 4 is a schematic view of an embodiment of the present utility model applied to an actual tool.
Fig. 5 is a schematic structural diagram of a combined hydraulic breaking and disassembling device according to an embodiment of the utility model.
Fig. 6 is a partially exploded view of fig. 5.
Fig. 7 is a schematic structural diagram of a combined hydraulic breaking device according to another embodiment of the present utility model.
Fig. 8 is a partially exploded view of fig. 7.
In the figure: 1. a cutter body; 11. a sector; 12. a bending portion; 13. a step part; 14. a fixing hole; 15. a transfer hole; 16. a start-up unit; 17. a start hole; 18. sinking grooves; 19. routing holes; 2. an inner hexagon screw; 3. a blade; 31. a butt joint edge; 32. a fitting hole; 33. a hooking curved part; 10. an oil delivery pipe; 20. a hydraulic assembly; 30. a cutting blade with replaceable cutting edge; 40. expanding the tool head; 401. a mounting hole; 402. a crushing head; 501. a fixed shaft pin; 502. and (5) clamping springs.
Detailed Description
The following description of the embodiments of the present utility model, taken in conjunction with the accompanying drawings, will be clearly and fully described in terms of the drawings, wherein the embodiments described are some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience of description and simplicity of description, only as to the orientation or positional relationship shown in the drawings, and not as an indication or suggestion that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
One embodiment is shown in fig. 1-4.
The utility model provides a shearing blade of interchangeable cutting edge, it includes cutter body 1, hexagon socket head cap screw 2 and cutting edge 3, cutter body 1 is equipped with sector 11, the one end of sector 11 is equipped with flexion 12, the other end is seted up along its fan profile and is connected ladder portion 13 with flexion 12, ladder portion 13 has been seted up a plurality of fixed orifices 14 along its fan profile, cutting edge 3 is equipped with butt joint edge 31, the contour dimension of butt joint edge 31 is equal to the sector 11 of cutter body 1, cutting edge 3 has a plurality of places and fixed orifices 14 assorted mounting hole 32 along its fan profile, cutting edge 3 passes through butt joint edge 31 to be assembled on sector 11 of cutter body 1, and pass through the mode of mounting hole 32 and fixed orifices 14 with cutting edge 3 fixed connection on cutter body 1 through hexagon socket head cap screw 2, make under the condition of demolishing hexagon socket head cap screw 2, can make cutting edge 3 and cutter body 1 separate. Therefore, if the cutter body 1 needs to be polished, the cutter body 1 only needs to be polished by the cutter blade 3, and particularly when the cutter body is applied to special cutters, the cutter blade 3 can be removed by a single polishing mode, so that the cutter blade is convenient to transfer, and when the cutter blade 3 completely loses the cutting capability, the cutter blade is convenient to rapidly disassemble and reassemble.
The cutter body 1 gradually increases from one end far away from the bending part 12 towards one end of the bending part 12, the outline shape of the step part 13 is consistent with that of the bending part 12, and the abutting edge 31 of the cutter blade 3 is attached to the step part 13 of the cutter body 1 and is in seamless abutting joint, so that the shearing force born by the cutter blade 3 is transferred to the cutter body 1 when the cutter blade 3 cuts a workpiece, and the cutter body 1 can protect the cutter blade 3 and prevent the cutter blade 3 from deforming. The abutting edge 31 of the blade 3 is provided with a hooking portion 33 extending to be seamlessly abutted with the bent portion 12, and the width dimension of the blade 3 gradually becomes wider from the end away from the hooking portion 33 toward the end of the hooking portion 33. That is, the hooking portion 33 of the blade 3 is a root area thereof, and the root area is tangent to the blade body 1, so that the blade 3 can be tightly contacted with the root for shearing and shortening the moment arm when shearing the steel bars, and can protect the blade, and meanwhile, the shearing force born by the blade 3 during shearing operation can be reacted on the blade body 1, and the blade body is used for bearing larger reaction force, so that deformation is prevented, and the strength is improved.
The top surface of the cutter body 1 is provided with a waist-shaped sinking groove 18, a plurality of hollow holes 19 are formed from the bottom surface of the sinking groove 18 towards the bottom surface of the cutter body 1, and the plurality of hollow holes 19 are uniformly distributed along the waist-shaped outline of the sinking groove 18. The weight of the cutter body 1 can be reduced no matter the sinking groove 18 or the engraving hole 19 is formed, and when the cutter body is applied to a portable tool, the weight of the cutter body is reduced, so that the cutter body can meet the development requirement of industry, is convenient to carry and saves materials.
The cutter body 1 and the cutter blade 3 are subjected to heat treatment process treatment, the cutter body 1 and the cutter blade 3 are made of different materials, for example, the cutter body 1 is made of cast iron which is cast, the cutter blade 3 is made of tool steel or alloy steel with chromium content up to 16-18%, the cutter body 1 has low material cost and only plays a role in supporting and fixing, and is not used for cutting, and the cutter blade 3 is mainly used for cutting, so that the cutter blade 3 is only controlled to have high hardness so as to meet the requirement that the cutter blade can cut products in application scenes, and the cost can be reduced.
The bending part 12 of the cutter body 1 is provided with a switching hole 15, the tail end of the bending part 12 is fixedly provided with a starting part 16, the starting part 16 is provided with a starting hole 17, the starting part 16 and the bending part 12 are distributed in an L-shaped position, two cutter bodies 1 with the same structure form a group and are arranged on a portable cutter for use through the switching hole 15, a rotary fulcrum is formed on the cutter through the switching hole 15, the starting hole 17 is connected with an original starting mechanism on the cutter, when the original starting mechanism in the cutter acts, the cutter body 1 is driven to rotate around a base point connected with the switching hole 15 through the starting hole 17, and when the cutter bodies 1 with the two same structures rotate in the face-to-face direction with the cutting edge 3, the workpiece is just cut off.
On the other hand, the present embodiment also provides a combined hydraulic breaking and disassembling device, as shown in fig. 5, which includes an oil delivery pipe 10, a hydraulic body 20, a cutting blade 30 with replaceable cutting edge, and an expanding tool head 40. The expanding tool head 40 comprises two working arms, at least one mounting hole 401 is formed in each working arm, and the at least one mounting hole 40 is distributed corresponding to the hollowed-out holes 19 in the sinking groove 18; the fixing shaft pin 501 connects the mounting hole 401 and the engraved hole 19 and the end of the fixing shaft pin 501 is fixed via the snap spring 502 to fixedly connect the working arm of the extension tool head 40 to the cutter body 1 of the replaceable-edge shearing blade 30. Based on the lightweight design of the hollow hole 19 on the sink 18, the present embodiment can rapidly expand the tool heads with other functions, such as any one of the expansion tool head (as shown in fig. 5), the breaking tool head (as shown in fig. 6) and the shearing and expanding tool head, based on the electro-hydraulic shearing machine formed by the shearing blade 30 with the replaceable blade, so that the expansion of the breaking and tearing functions is performed to be suitable for the rescue breaking and tearing site with complex environment.
In the split type electric tool for replacing the whole hydraulic working head in the prior art, the working head comprises a working head body connected with a hydraulic assembly and a working arm connected to the working head body, and the metal working head body is very heavy and is also relatively complex to connect with the piston. As shown in fig. 5 and 6, in the present embodiment, the expanding tool head 40 simply includes two working arms with corresponding hydraulic functions, without any other connecting parts, so that the expanding tool head is small in size and light in weight, and the mounting hole 401 on the working arm is connected to the tool head 1 through the fixing shaft pin 501 and the clamp spring 502, and the connecting position is exposed in the field of view of the staff and is very convenient to install. Therefore, the expansion of the working arm can be carried out in the breaking and dismantling place, and the use is very convenient.
Fig. 5 and 6 show a combined hydraulic breaking and disassembling device with an expanded tool head, the expanded tool head 40 comprises two working arms which are respectively fixed on two cutter bodies 1 through a fixed shaft pin 501 and a clamping spring 502, and the two cutter bodies 1 are hinged at the front ends of pistons in a hydraulic assembly. FIGS. 7 and 8 illustrate a modular hydraulic breaker apparatus with an expanded breaker tool head; two mounting holes 401 are formed in each working arm of the crushing tool head, and each mounting hole 401 is fixed to the corresponding cutter body 1 through a fixed pin shaft 501 and a clamp spring 502. The crushing tool head is a tool for crushing concrete, and the inner sides of both working arms are provided with opposite crushing heads 402. Driven by the hydraulic assembly 20, the two working arms of the crushing tool head are folded along with the cutter body 1, and the two crushing heads 402 clamp and crush the concrete; the hydraulic assembly 20 then drives the two working arms open via the cutter body 1.
In the present embodiment, the hydraulic device 20 includes a motor, a hydraulic pump, an oil cylinder, and a piston.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present utility model in detail. It should be understood that the foregoing is only illustrative of the present utility model and is not intended to limit the scope of the present utility model. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present utility model are intended to be included in the scope of the present utility model.

Claims (8)

1. A replaceable cutting edge shear blade, characterized by: including cutter body (1), hexagon socket screw (2) and cutting edge (3), cutter body (1) is equipped with sector (11), the one end of sector (11) is equipped with flexion (12), and the other end is seted up along its sector profile and is connected ladder portion (13) with flexion (12), a plurality of fixed orifices (14) have been seted up along its sector profile to ladder portion (13), cutting edge (3) are equipped with butt joint edge (31), the contour dimension of butt joint edge (31) equals sector (11) of cutter body (1), cutting edge (3) open the spring face along its sector profile has a plurality of departments and fixed orifices (14) assorted pilot hole (32), cutting edge (3) are assembled on sector (11) of cutter body (1) through butt joint edge (31) to penetrate mode with cutting edge (3) fixed connection on cutter body (1) through hexagon socket screw (2) and fixed orifices (14), make under the circumstances of demolising hexagon socket screw (2), can make cutter body (3) and cutter body (1).
2. The replaceable-edge shear blade of claim 1, wherein: the cutter body (1) gradually increases from one end far away from the bending part (12) to one end of the bending part (12), the outline shape of the step part (13) is consistent with that of the bending part (12), and the abutting edge (31) of the cutting edge (3) is attached to the step part (13) of the cutter body (1) and is in seamless abutting joint.
3. The replaceable-edge shear blade of claim 2, wherein: the plurality of fixing holes (14) are distributed along the length direction of the blade and the gap between the adjacent fixing holes (14) from the root of the blade (3) to the tail end of the blade is gradually increased.
4. The replaceable-edge shear blade of claim 1, wherein: the cutter body (1) is provided with a waist-shaped sinking groove (18), a plurality of hollow holes (19) are formed in the bottom surface of the sinking groove (18) towards the bottom surface of the cutter body (1), and the hollow holes (19) are uniformly distributed along the waist-shaped outline of the sinking groove (18).
5. The replaceable-edge shear blade of claim 1, wherein: the cutter body (1) and the cutting edge (3) are subjected to heat treatment process treatment so as to improve the strength of the cutter body, and the cutter body (1) and the cutting edge (3) are made of different materials.
6. The replaceable-edge shear blade of claim 1, wherein: the cutter body (1) is characterized in that a switching hole (15) is formed in a bending part (12) of the cutter body (1), a starting part (16) is fixed at the tail end of the bending part (12), a starting hole (17) is formed in the starting part (16), and the starting part (16) and the bending part (12) are distributed in an L-shaped position.
7. A combined hydraulic breaking and dismantling device, characterized in that the combined hydraulic breaking and dismantling device comprises an oil delivery pipe (10), a hydraulic body (20), the shearing blade (30) with the replaceable cutting edge as claimed in claim 4 and an expansion tool head (40); the expanding tool head (40) comprises two working arms, at least one mounting hole (401) is formed in each working arm, and the at least one mounting hole (401) is distributed corresponding to the hollowed-out holes (19) in the sinking groove (18); the fixed shaft pin (501) is connected with the mounting hole (401) and the engraving hole (19), and the end part of the fixed shaft pin (501) is fixed through the snap spring (502) so as to fixedly connect the working arm of the expanding tool head (40) to the cutter body (1) of the shearing blade (30) with the replaceable cutting edge.
8. The combination hydraulic break-open device according to claim 7, characterized in that the expansion tool head (40) is any one of an expansion tool head, a crushing tool head and a shearing and expansion tool head.
CN202322002651.1U 2023-07-27 2023-07-27 Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device Active CN220547707U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322002651.1U CN220547707U (en) 2023-07-27 2023-07-27 Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322002651.1U CN220547707U (en) 2023-07-27 2023-07-27 Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device

Publications (1)

Publication Number Publication Date
CN220547707U true CN220547707U (en) 2024-03-01

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Application Number Title Priority Date Filing Date
CN202322002651.1U Active CN220547707U (en) 2023-07-27 2023-07-27 Shearing blade with replaceable blade and combined hydraulic breaking and disassembling device

Country Status (1)

Country Link
CN (1) CN220547707U (en)

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