Mining roadway steel arch gripper

Abstract

The utility model discloses a mining roadway steel arch gripper which comprises a clamping jaw fixing base, the two ends of the side face of the clamping jaw fixing base are respectively hinged with a clamping jaw assembly, the bottom of each clamping jaw assembly is hinged with a clamping jaw opening and closing oil cylinder, the side face of the clamping jaw fixing base is provided with a limiting pin matched with the clamping jaw assemblies, and the limiting pins are connected with the clamping jaw assemblies. According to the mining roadway steel arch gripper, the multiple sets of clamping jaws, the positioning pins, the lengthening blocks, the mounting holes and the bent clamping parts are arranged to be matched with the clamping jaw opening and closing oil cylinders, so that a steel arch is stably clamped, the mounting angles of the lengthening blocks are conveniently adjusted by arranging the multiple mounting holes and the positioning pins, the steel arches of different shapes are conveniently grabbed, grabbing is reliable, and the working efficiency is improved. The clamping jaw assemblies are arranged to prevent the steel arch from falling off, the limiting pins are arranged to limit the maximum opening angle of the clamping jaw assemblies, the situation that every two corresponding clamping jaw assemblies are not centered is prevented, and the steel arch can slide to a certain degree by arranging the bent edges.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel arch installation technical field, concretely is a kind of mine roadway steel arch gripper. BACKGROUND

[0002] Steel arch is needed to support and protect in mine roadway excavation, and steel arch is mostly profile steel, for example, I-beam, H-shaped steel, U-shaped steel and so on, steel arch is usually made of different profile steel according to different roadway conditions in mine roadway, and general arch gripper device is only suitable for one type of profile steel, when facing different profile steel, it is often unable to achieve quick, safe and reliable clamping. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem to overcome the defects of the prior art, provide a kind of mine roadway steel arch gripper, compact structure, face different steel arch profile steel, can be adjusted quickly, realize safe, reliable, stable steel arch clamping, can effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of mine roadway steel arch gripper, including dog fixed seat, the two ends of the side surface of the dog fixed seat are hinged to a group of dog assembly, the bottom of each group of the dog assembly is hinged to a dog opening and closing oil cylinder, the side surface of the dog fixed seat is installed with the limiting pin matched with the dog assembly, the front and rear edge positions of the upper surface of the dog fixed seat are upwardly provided with bending edge.

[0006] As a preferred technical scheme of the utility model, the middle position of the lower part of the dog fixed seat is provided with mounting hole.

[0007] As a preferred technical scheme of the utility model, the dog assembly is composed of dog, positioning pin and lengthening block, the two ends of the front and rear side surface of the dog fixed seat are provided with a plurality of dog installation grooves, the dog installation groove is installed with connecting pin, the dog is hinged in the dog installation groove by connecting pin, the upper portion of the dog is installed with a plurality of positioning pins, the lengthening block is installed on the top of the dog by positioning pin.

[0008] As a preferred technical scheme of the utility model, the limiting pin is installed in the through hole in the upper edge position of the dog installation groove.

[0009] As a preferred technical scheme of the utility model, the lower part of the side surface of the lengthening block is provided with a plurality of mounting holes, and the side surface of the upper portion of the lengthening block is provided with bending clamping part.

[0010] As a preferred technical scheme of the utility model, the upper surface of the bent edge is provided with a claw action groove matched with the claw.

[0011] As a preferred technical scheme of the utility model, the claw opening and closing oil cylinder is hinged at the lower part between the corresponding two claws.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The mine roadway steel arch support gripper is convenient for stably clamping the steel arch support through the cooperation of the multiple claw groups, positioning pins, lengthening blocks, mounting holes and bent clamping parts and the claw opening and closing oil cylinder, is convenient for adjusting the mounting angle of the lengthening block through the multiple mounting holes and positioning pins, is convenient for grabbing different shapes of steel arch supports (I-shaped steel, H-shaped steel, U-shaped steel, etc.), is reliable in grabbing, avoids the falling of the steel arch support, limits the maximum opening angle of the claw assembly through the limiting pin, prevents the misalignment of the corresponding two claw assemblies, and enables the steel arch support to slide to a certain extent through the bent edge. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the utility model.

[0015] Fig. 2 It is a structural schematic view of the claw assembly of the utility model.

[0016] Fig. 3 It is a structural schematic view of the lengthening block of the utility model.

[0017] In the figure: claw fixing seat 1, limiting pin 2, claw opening and closing oil cylinder 3, connecting pin 4, claw assembly 5, claw 51, positioning pin 52, lengthening block 53, mounting hole 531, bent clamping part 532, mounting hole 6, claw mounting groove 7, bent edge 8, claw action groove 9. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0020] The utility model provides a kind of mine roadway steel arch grab, including claw fixed seat 1, two ends of side of claw fixed seat 1 are hinged with a group of claw assembly 5, the bottom of each group of claw assembly 5 is hinged with a claw opening and closing oil cylinder 3, the side of claw fixed seat 1 is equipped with the limiting pin 2 cooperation with claw assembly 5, the upper surface of claw fixed seat 1 is provided with bending edge 8 upwards in front and back edge position.

[0021] The middle position of the lower part of claw fixed seat 1 is provided with mounting hole 6, and the claw fixed seat 1 is installed on the mechanical arm of the construction vehicle through the mounting hole 6.

[0022] Claw assembly 5 is composed of claw 51, positioning pin 52 and lengthening block 53, the two ends of the front and back side of claw fixed seat 1 are provided with a plurality of claw installation grooves 7, connecting pin 4 is installed in claw installation groove 7, claw 51 is hinged in claw installation groove 7 through connecting pin 4, a plurality of positioning pins 52 are installed on the upper part of claw 51, and lengthening block 53 is installed on the top of claw 51 through positioning pin 52.

[0023] The limiting pin 2 is installed in the through hole in the upper edge position of claw installation groove 7.

[0024] A plurality of mounting holes 531 are provided in the lower part of the side of lengthening block 53, and bending clamping part 532 is provided on the side of the upper part of lengthening block 53, so that the steel arch can be prevented from falling accidentally.

[0025] The upper surface of bending edge 8 is provided with claw action groove 9 matched with claw 51.

[0026] The claw opening and closing oil cylinder 3 is hinged at the lower part between the corresponding two claws 51.

[0027] Claw assembly 5 is installed in claw installation groove 7 through connecting pin 4, there are totally four claw assemblies 5, two by two of claw assemblies 5 are queued, the claw opening and closing oil cylinder 3 is hinged at the lower part between the corresponding two claws 51, the opening and closing of the corresponding two claw assemblies 5 are realized by the extension and contraction of the claw opening and closing oil cylinder 3, the limiting pin 2 is installed in the through hole on claw installation groove 7, so that when the upper part of claw assembly 5 is opened to a certain angle when the claw opening and closing oil cylinder 3 is retracted, the corresponding two claw assemblies 5 are stopped, so that the corresponding two claw assemblies 5 are prevented from being misaligned, the upper surface of claw fixed seat 1 is provided with bending edge 8, so that the steel arch can slide to a certain extent, the claw action groove 9 is provided in the position corresponding to claw assembly 5 on bending edge 8, so that when the upper part of claw assembly 5 is closed to the minimum angle when the claw opening and closing oil cylinder 3 is extended, the corresponding two claw assemblies 5 are stopped, so that the corresponding two claw assemblies 5 are prevented from being misaligned.

[0028] The claw assembly 5 is composed of a claw 51, a positioning pin 52 and an extension block 53, the extension block 53 is installed on the top of the claw 51 through the positioning pin 52, the positioning pin 52 is provided with at least two, preventing the extension block 53 from rotating accidentally, a plurality of mounting holes 531 are arranged on the side surface of the extension block 53, preferably three mounting holes 531, when grabbing different shapes of steel arches (such as I-beam, H-shaped steel, U-shaped steel and the like), the reliable grabbing can be realized by adjusting the installation angle of the extension block 53 or replacing the extension block 53.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A mine roadway steel arch support grabber comprising a claw fixing seat (1), characterized in that: The both ends of the side of the claw fixing seat (1) are hinged with a set of claw assembly (5), the bottom of each set of claw assembly (5) is hinged with a claw opening and closing oil cylinder (3), the side of the claw fixing seat (1) is installed with a limiting pin (2) matched with the claw assembly (5), the upper surface of the claw fixing seat (1) is provided with a bending edge (8) upwardly protruding at the front and rear edge positions.

2. The mine roadway steel arch support grab as claimed in claim 1, characterised in that: The middle position of the lower part of the claw fixing seat (1) is provided with a mounting hole (6).

3. The mine roadway steel arch support grab as claimed in claim 1, characterised in that: The claw assembly (5) is composed of a claw (51), a positioning pin (52) and an extension block (53), the both ends of the front and rear sides of the claw fixing seat (1) are provided with a plurality of claw installation grooves (7), the claw installation groove (7) is installed with a connecting pin (4), the claw (51) is hinged in the claw installation groove (7) through the connecting pin (4), the upper part of the claw (51) is installed with a plurality of positioning pins (52), the extension block (53) is installed on the top of the claw (51) through the positioning pin (52).

4. The mine roadway steel arch support grab as claimed in claim 3, characterised in that: The limiting pin (2) is installed in the through hole at the upper edge position of the claw installation groove (7).

5. The mine roadway steel arch support grab as claimed in claim 3, characterised in that: The lower part of the side of the extension block (53) is provided with a plurality of mounting holes (531), the side of the upper part of the extension block (53) is provided with a bending clamping part (532).

6. The mine roadway steel arch support grab as claimed in claim 3, characterised in that: The upper surface of the bending edge (8) is provided with a claw action groove (9) matched with the claw (51).

7. The mine roadway steel arch support grab as claimed in claim 3, characterised in that: The claw opening and closing oil cylinder (3) is hinged at the lower part between the corresponding two claws (51).

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