Concrete forcible entry hydraulic cutting nippers

Abstract

The utility model discloses a concrete forcible entry hydraulic cutting nipper which comprises an assembly connector, a rotating seat, a hydraulic rod, an assembly seat, a nipper head, a first electric telescopic rod, a linkage seat, a first gear, a second gear, a second electric telescopic rod, a first tooth groove, a second tooth groove and a crushing cone. A linkage seat is arranged on a first gear of the linkage seat, so that the two plier heads can be linked during shearing, the two plier heads have interaction force, and the driving force during crushing of the plier heads is increased. A second tooth groove is formed in the first gear of the linkage seat and is matched with a crushing cone driven by a second electric push rod to stretch out and draw back and a first tooth groove in a telescopic rod body of the second electric push rod; the breaking cone can extend out to carry out jacking and crushing on a to-be-broken object, the breaking cone can also be linked with the two tong heads to act, the jacking pressure of the breaking cone is guaranteed, the force borne by the to-be-cut object is not only the pressure in the single cutting direction but also the pressure perpendicular to the cutting direction, and easier breaking is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of hydraulic shearing pliers, in particular to a hydraulic shearing pliers for breaking and demolishing concrete. Background Art

[0002] Hydraulic shears are one of the hydraulic shears used in emergency rescue. Hydraulic shears are made of aerospace high-strength lightweight alloy. They are light in weight, strong in shearing ability, short in opening and closing time, and accelerate the rescue process. With the development of equipment application, in the process of building demolition, demolition excavators are often equipped with hydraulic shears to demolish high-rise buildings. However, when the existing technology is used, the traditional demolition shears have a single functionality and can only be demolished by shearing. When encountering thicker concrete, it is difficult to demolish it at one time and it can only be demolished step by step, which is inefficient. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to overcome the shortcomings of the existing technology, a concrete demolition hydraulic shear is proposed to solve the problem that when the existing technology is used, the traditional demolition shear has a single functionality and can only be demolished by shearing. When encountering thicker concrete, it is difficult to demolish it at one time and can only be demolished step by step, which is inefficient.

[0005] (II) Technical solution

[0006] The utility model is realized by the following technical scheme: the utility model proposes a concrete demolition hydraulic shearing pliers, whose structure includes an assembly joint, a rotating seat, a hydraulic rod, an assembly seat, a pliers head, a first electric telescopic rod, a linkage seat, a first gear, a second gear, a second electric telescopic rod, a first tooth groove, a second tooth groove and a crushing cone, one end of the assembly seat is assembled on the assembly joint through the rotating seat, the pliers head is triangular, and two pliers heads are provided, the two pliers heads are embedded and assembled with the second gear on the side adjacent to the assembly seat, the two pliers heads are symmetrically hinged to the side of the assembly seat away from the rotating seat through the second gear, one end of the hydraulic rod is hinged to the side end of the assembly seat, and the other end of the hydraulic rod is hinged to the side end of the assembly seat. The first electric telescopic rod and the linkage seat are both embedded and assembled in the assembly seat. The first electric telescopic rod is used to drive the linkage seat to move away from or approach the clamp head. The linkage seat is equipped with a first gear on the side adjacent to the clamp head. Two first gears are provided. The two first gears are meshed with each other. The second gear is adjacent to the assembly seat and penetrates the clamp head and meshes with the first gear. The second electric telescopic rod is assembled in the linkage seat. A second tooth groove is provided in the middle of the first gear. Both sides of the telescopic rod body of the second electric telescopic rod are provided with first tooth grooves. The first tooth groove is used to mesh with the second tooth groove. One end of the crushing cone is fixedly assembled on the telescopic rod body of the second electric telescopic rod.

[0007] An avoidance groove is arranged between the two clamp heads, and the other end of the crushing cone passes through between the first tooth grooves of the two first gears and is located in the avoidance groove.

[0008] Furthermore, a bolt and a pin are provided on the telescopic rod body of the second electric telescopic rod adjacent to the crushing cone, the pin is fixed to the telescopic rod body of the second electric telescopic rod adjacent to the crushing cone, the pin is inserted into the crushing cone, and the bolt is used to lock the pin and the crushing cone.

[0009] Furthermore, a gap is provided between the two second gears, and a width of the gap is greater than a width of the crushing cone.

[0010] Furthermore, the telescopic stroke of the second electric telescopic rod is configured such that, when the second electric telescopic rod is fully retracted, the end of the crushing cone away from the second electric telescopic rod is located in the assembly seat.

[0011] Furthermore, the telescopic stroke of the first electric telescopic rod is configured such that, when it is fully retracted, the first gear is disengaged from the second gear.

[0012] Furthermore, the assembly joint, the rotating seat, the assembly seat, the clamp head, the linkage seat, the first gear, the second gear and the crushing cone are all made of metal materials.

[0013] Furthermore, the crushing cone is a rod body with a cone at one end.

[0014] Furthermore, the connecting end of the crushing cone and the second electric telescopic rod is a plane and fits with the telescopic rod body of the second electric telescopic rod.

[0015] (III) Beneficial effects

[0016] One of the above technical solutions has the following advantages or beneficial effects:

[0017] 1. By providing a linkage seat with a double gear structure and combining it with the second gear of the pliers head, the two pliers heads can be linked when shearing, so that when one pliers head is driven by power, the gear and the second gear can drive the other pliers head to move synchronously, so that the two pliers heads have an interaction force, thereby increasing the driving force when the pliers heads are crushed and improving the shearing efficiency;

[0018] 2. The double gears are provided with a second tooth groove, which is matched with the crushing cone driven by the second electric push rod and the first tooth groove on the telescopic rod body of the second electric push rod, so that the equipment can also perform top pressure crushing of the demolished objects by extending the crushing cone. The crushing cone can also be linked with the two pliers to ensure the top pressure of the crushing cone, so that the force on the sheared objects is not only the pressure in a single shearing direction, but also the pressure perpendicular to the shearing direction, so as to achieve easier demolition, especially for thicker concrete;

[0019] 3. The linkage seat is assembled in the assembly seat by controlling the movement of the first electric telescopic rod, so that the equipment can realize the convenient switching between the individual control and linkage control of the clamp head, and increase the controllability of the equipment clamp head;

[0020] 4. The hinge between the pliers head and the assembly seat and the meshing with the first gear adopts an inlaid assembled second gear structure, so that when the pliers head is mechanically damaged at the hinge or the meshing with the first gear, it can be repaired by replacing the second gear, avoiding the inconvenience of replacing the entire pliers head and saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a structural schematic diagram of a concrete demolition hydraulic shearing pliers of the utility model;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the pliers head of the utility model when the first gear is assembled on the assembly seat without being cut;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the pliers head of the utility model after the first gear is cut open on the assembly seat;

[0025] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0026] Figure 5 It is a schematic structural diagram of the cross section of the pliers head of the utility model when the first electric telescopic rod is extended on the assembly seat;

[0027] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure of B;

[0028] Figure 7 It is a schematic diagram of stress during shearing of the utility model;

[0029] Figure 8 For this utility model Figure 7 Schematic diagram of the enlarged structure of C;

[0030] In the figure: assembly joint-1, rotating seat-2, hydraulic rod-3, assembly seat-4, clamp head-5, first electric telescopic rod-6, linkage seat-7, first gear-8, second gear-9, second electric telescopic rod-10, first tooth groove-11, second tooth groove-12, crushing cone-13, avoidance groove-501, bolt-1001, pin rod-1002. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto. Embodiment 1:

[0032] The utility model provides a concrete demolition hydraulic shearing pliers: its structure includes an assembly joint 1, a rotating seat 2, a hydraulic rod 3, an assembly seat 4, a clamp head 5, a first electric telescopic rod 6, a linkage seat 7, a first gear 8, a second gear 9, a second electric telescopic rod 10, a first tooth groove 11, a second tooth groove 12 and a crushing cone 13, one end of the assembly seat 4 is assembled on the assembly joint 1 through the rotating seat 2, the clamp head 5 is triangular, and the clamp head 5 is provided with two, the two clamp heads 5 are adjacent to the assembly seat 4 side inlaid with the second gear 9, the two clamp heads 5 are symmetrically hinged to the assembly seat 4 away from the rotating seat 2 side through the second gear 9, one end of the hydraulic rod 3 is hinged to the side end of the assembly seat 4, the other end of the hydraulic rod 3 is hinged to the clamp head 5, the first end of the hydraulic rod 3 is hinged to the second end of the hydraulic rod 3, and the second end of the hydraulic rod 3 is hinged to the clamp head 5. An electric telescopic rod 6 and a linkage seat 7 are both embedded and assembled in the assembly seat 4. The first electric telescopic rod 6 is used to drive the linkage seat 7 to move away from or approach the clamp head 5. The linkage seat 7 is equipped with a first gear 8 on the side adjacent to the clamp head 5. The first gear 8 is provided with two, and the two first gears 8 are meshed with each other. The second gear 9 is adjacent to the assembly seat 4 and penetrates the clamp head 5 and meshes with the first gear 8. The second electric telescopic rod 10 is assembled in the linkage seat 7. The middle of the first gear 8 is provided with a second tooth groove 12. The telescopic rod body of the second electric telescopic rod 10 is provided with a first tooth groove 11 on both sides. The first tooth groove 11 is used to mesh with the second tooth groove 12. One end of the crushing cone 13 is fixedly assembled on the telescopic rod body of the second electric telescopic rod 10;

[0033] An avoidance groove 501 is provided between the two clamp heads 5 , and the other end of the crushing cone 13 passes through between the first tooth grooves 11 of the two first gears 8 and is located in the avoidance groove 501 .

[0034] Furthermore, a gap is provided between the two second gears 9 , and a width of the gap is greater than a width of the crushing cone 13 .

[0035] Furthermore, the telescopic stroke of the second electric telescopic rod 10 is configured such that, when it is fully retracted, the end of the crushing cone 13 away from the second electric telescopic rod 10 is located in the assembly seat 4.

[0036] Furthermore, the telescopic stroke of the first electric telescopic rod 6 is configured such that, when it is fully retracted, the first gear 8 is disengaged from the second gear 9 .

[0037] Furthermore, the assembly joint 1, the rotating seat 2, the assembly seat 4, the clamp head 5, the linkage seat 7, the first gear 8, the second gear 9 and the crushing cone 13 are all made of metal materials.

[0038] Furthermore, the crushing cone 13 is a rod body with a cone at one end.

[0039] Furthermore, the connecting end of the crushing cone 13 and the second electric telescopic rod 10 is a plane and fits with the telescopic rod body of the second electric telescopic rod 10 .

[0040] When in use, the hydraulic rod 3 can be telescopically pressed against the clamp heads 5, because one end of the two clamp heads 5 is hinged to the assembly seat 4, so that the two clamp heads 5 can be closed or opened to achieve the shearing and demolition function. When in use, the first electric telescopic rod 6 can be controlled to drive the linkage seat 7 to move in the assembly seat 4, so that the first gear 8 installed on the linkage seat 7 can be engaged or separated with the second gear 9 of the clamp heads 5. When the first gear 8 is engaged with the second gear 9, the two clamp heads 5 are driven by the hydraulic rod 3 to shear, and the second gear 9 and the first gear 8 are linked, so that the forces of the two clamp heads 5 interact with each other to increase the shearing force. When the first gear 8 is separated from the second gear 9, the two clamp heads 5 can be controlled separately, which is convenient for the separate adjustment of the clamp heads 5 when demolishing, so that the equipment can realize the convenient switching between the separate control and linkage control of the clamp heads 5, ensure the controllability of the equipment clamp heads 5, and at the same time enable the equipment clamp heads 5 to achieve better shearing force through the linkage mutual assistance when shearing;

[0041] like Figure 7 As shown, when used in linkage, one pliers head 5 is not only driven by the thrust of the single first electric telescopic rod 6, but can also be driven by another pliers head 5 through the transmission of the first gear 8 and the second gear 9, thereby realizing the interaction force of the two pliers heads 5.

[0042] When the present embodiment is used, the crushing cone 13 can be controlled by the second electric push rod 10 to extend between the second tooth grooves 12 of the two clamp heads 5, and after the telescopic rod body of the second electric push rod 10 is extended to a certain extent, the first tooth grooves 11 on both sides of the telescopic rod body will mesh with the second tooth grooves 12 of the first gear 8, so that the crushing cone 13 is linked with the clamp heads 5, so that the equipment can also perform top pressure crushing of the demolished object by extending the crushing cone 13 during demolition and shearing. In addition to using the power of the second electric telescopic rod 10, the crushing cone 13 can also be linked with the two clamp heads 5 to ensure the top pressure of the crushing cone 13, so that the demolition shears can achieve easier demolition through shearing and top pressure crushing, especially for thicker concrete, the top pressure can make the sheared object subjected to not only a single shearing direction pressure, but also a pressure perpendicular to the shearing direction, which is more convenient for the collapse of the sheared object structure, and the other structures and effects remain unchanged;

[0043] like Figure 7 and Figure 8As shown, during the linked crushing, the two clamp heads 5 respectively form a compressive stress σ oblique to the inner side of the object on both sides of the sheared object, and at the same time form a tangential shear stress τ on both sides of the sheared object. At the same time, the crushing cone 13 will press and penetrate into the sheared object, so that the sheared object is located between the clamp heads 5 on both sides and forms a plurality of compressive stresses σ and tangential shear stresses τ, wherein the thorn tip area of ​​the crushing cone 13 will form an axial compressive stress σ in the penetration direction and a tangential shear stress τ perpendicular to the axial direction and diffused to the surroundings in a circular ring shape at the sheared object, and the conical inclined surface area of ​​the crushing cone 13 will also form a compressive stress σ perpendicular to the inclined surface and pointing to the inside of the sheared object, and at the same time form a tangential shear stress τ perpendicular to the inclined surface, so that the sheared object is subjected to not only the compressive stress σ and tangential shear stress τ on both sides, but also multiple compressive stresses σ and tangential shear stresses τ located in the middle of the shears on both sides and perpendicular to the sheared object and diffused outward, so that the sheared object can be more easily broken under the interaction of multiple forces, and easier demolition can be achieved, especially for thicker concrete. Embodiment 2:

[0044] Compared with the first embodiment, in this embodiment, the telescopic rod body of the second electric telescopic rod 10 is provided with a bolt 1001 and a pin rod 1002 on the side adjacent to the crushing cone 13, and the pin rod 1002 is fixed to the telescopic rod body of the second electric telescopic rod 10 on the side adjacent to the crushing cone 13. The pin rod 1002 is inserted into the crushing cone 13, and the bolt 1001 is used to lock the pin rod 1002 and the crushing cone 13, so that the crushing cone 13 can be conveniently removed relative to the second electric telescopic rod 10 by releasing the bolt 1001 and then pulling it out, so as to facilitate the rapid replacement of the crushing cone 14, and the other structures and effects remain unchanged.

[0045] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0046] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0047] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete demolition hydraulic shear, characterized by: The invention comprises an assembly joint (1), a rotating seat (2), a hydraulic rod (3), an assembly seat (4), a clamp head (5), a first electric telescopic rod (6), a linkage seat (7), a first gear (8), a second gear (9), a second electric telescopic rod (10), a first tooth groove (11), a second tooth groove (12) and a crushing cone (13). One end of the assembly seat (4) is assembled on the assembly joint (1) through the rotating seat (2). The clamp head (5) is triangular in shape. Two clamp heads (5) are provided. The two clamp heads (5) are embedded with a second gear (9) on the side adjacent to the assembly seat (4). The two clamp heads (5) are symmetrically hinged to the side of the assembly seat (4) away from the rotating seat (2) through the second gear (9). One end of the hydraulic rod (3) is hinged to the side end of the assembly seat (4). The other end of the hydraulic rod (3) is hinged to the clamp head (5). The first electric telescopic rod ( 6) and the linkage seat (7) are both embedded and assembled in the assembly seat (4); the first electric telescopic rod (6) is used to drive the linkage seat (7) to move away from or close to the clamp head (5); the linkage seat (7) is equipped with a first gear (8) on the side adjacent to the clamp head (5); two first gears (8) are provided, and the two first gears (8) are meshed with each other; the second gear (9) is adjacent to the assembly seat (4) and penetrates the clamp head (5) and meshes with the first gear (8); the second electric telescopic rod (10) is assembled in the linkage seat (7); a second tooth groove (12) is provided in the middle of the first gear (8); both sides of the telescopic rod body of the second electric telescopic rod (10) are equipped with first tooth grooves (11), and the first tooth grooves (11) are used to mesh with the second tooth grooves (12); one end of the crushing cone (13) is fixedly assembled on the telescopic rod body of the second electric telescopic rod (10); An avoidance groove (501) is provided between the two tongs heads (5), and the other end of the crushing cone (13) passes through between the first tooth grooves (11) of the two first gears (8) and is located in the avoidance groove (501).

2. The concrete demolition hydraulic shears according to claim 1 are characterized by: A bolt (1001) and a pin rod (1002) are provided on the side of the telescopic rod body of the second electric telescopic rod (10) adjacent to the crushing cone (13); the pin rod (1002) is fixed to the side of the telescopic rod body of the second electric telescopic rod (10) adjacent to the crushing cone (13); the pin rod (1002) is inserted into the crushing cone (13); and the bolt (1001) is used to lock the pin rod (1002) and the crushing cone (13).

3. The concrete demolition hydraulic shears according to claim 1 are characterized by: A gap is provided between the two second gears (9), and the width of the gap is greater than the width of the crushing cone (13).

4. The concrete demolition hydraulic shears according to claim 1 are characterized by: The telescopic stroke of the second electric telescopic rod (10) is configured such that, when it is fully retracted, the end of the crushing cone (13) away from the second electric telescopic rod (10) is located in the assembly seat (4).

5. The concrete demolition hydraulic shears according to claim 1 are characterized by: The telescopic stroke of the first electric telescopic rod (6) is configured such that, when it is fully retracted, the first gear (8) is disengaged from the second gear (9).

6. The concrete demolition hydraulic shears according to claim 1 are characterized by: The crushing cone (13) is a rod body with a cone at one end.

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