Composite sleeve hammer for drop hammer impact machine
Technical Field
The utility model relates to the technical field of accessories of engineering mechanics testing equipment, in particular to a combined sleeve hammer for a drop hammer impact machine.
Background
The drop hammer tester is a physical property testing instrument used in the field of mechanical engineering, and can be suitable for testing the external impact resistance of various pipes and plates. The existing drop hammer testing machine is mainly designed through a vertical structure, a matched hammer body is connected through a cable to impact an object, but the traditional matched hammer body is fixed in structure, the weight and the size of the traditional matched hammer body cannot be changed according to requirements, the testing mode is limited singly, and the type of a suitable tested object is also very fixed.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the problems in the prior art, the improved combined sleeve hammer for the drop hammer impact machine is provided, and the problems that the hammer body structure matched with the traditional drop hammer test machine is fixed, the weight and the size of the hammer body cannot be changed according to the needs, the test mode is single and limited, and the variety of a suitable test object is very fixed are solved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a composite type matched sleeve hammer for drop hammer impact machine, includes the combination formula drop hammer body, the combination formula drop hammer body include that the bottom strikes the hammer block, cover in the middle of the bottom strikes the hammer block outside put and strike the hammer block, cover in the external of the middle and strike the hammer block outside and connect the hawser on bottom and strike the hammer block top, bottom is strikeed the hammer block lower extreme axial and is provided with regular hexagon control hammer head, bottom is strikeed the hammer block upper end axial and is fixed with the external screw thread top connector that is used for connecting the hawser, the bottom is strikeed the hammer block and is strikeed the hammer block screw thread assembly through external screw thread top connector and put, external is strikeed the hammer block and is strikeed the hammer block screw thread assembly in the middle.
Lateral loading and unloading openings are formed in the outer side surfaces of the middle impact hammer body and the outer impact hammer body.
The outer side of the lower end of the middle impact hammer body is provided with a first regular hexagon control frame protruding downwards, the outer side of the upper end of the middle impact hammer body is provided with a first external thread top connecting frame protruding upwards, the outer side of the lower end of the external impact hammer body is provided with a second regular hexagon control frame protruding downwards, and the inner side of the middle impact hammer body is positioned at the connecting end of the first external thread top connecting frame and the upper end of the inner side of the external impact hammer body is provided with an internal thread assembly groove.
The external side face of the external impact hammer is movably assembled with an arc-shaped limiting frame on one side of the lateral loading and unloading opening, a lateral limiting clamping groove is formed in the other side of the lateral loading and unloading opening, and an integral structure limiting buckle matched with the lateral limiting clamping groove is arranged on the arc-shaped face on the inner side of the arc-shaped limiting frame.
The inside of the external thread top connector is fixed with a transverse connecting rod for binding a cable.
The bottom impact hammer body lower extreme has been seted up and has been used for installing the inside telescopic hole of regular hexagon control hammer head, set up the inboard extrusion groove that inside set up extrusion spring on the inside telescopic hole medial surface, regular hexagon control hammer head is located inside telescopic hole inside top and has the inside bellied inside stripper plate of integral structure in inside extrusion groove, arc spacing groove that is used for hoisting cable and horizontal connecting rod stability and spacing ability has been seted up on inside stripper plate top.
The beneficial effects of the utility model are as follows:
(1) The primary and secondary type matched sleeve hammer for the drop hammer impact machine adopts a primary and secondary type sleeving design, and the overall quality and the size of the matched sleeve hammer can be changed according to the needs, so that the combined sleeve hammer is suitable for different test articles and test environments, and the test modes are more various;
(2) The screw thread assembly mode is adopted to assemble the bottom impact hammer body, the middle impact hammer body and the external impact hammer body, the lateral loading and unloading notch on the outer side of the screw thread assembly mode can be utilized to directly assemble on the outer side without disassembly, the loading and unloading operation is simpler and more convenient, and the assembly firmness and stability are more excellent.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an internal cross-sectional view of the present utility model.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The primary and secondary type sleeve hammer for the drop hammer impact machine shown in fig. 1 and 2 comprises a combined drop hammer body, wherein the combined drop hammer body comprises a bottom impact hammer body 1, a middle impact hammer body 2 sleeved on the outer side of the bottom impact hammer body 1, an external impact hammer body 3 sleeved on the outer side of the middle impact hammer body 2 and a cable 4 connected to the top end of the bottom impact hammer body 1, a regular hexagon control hammer head 5 is axially arranged at the lower end of the bottom impact hammer body 1, an external thread top connector 6 for connecting the cable 4 is axially fixed at the upper end of the bottom impact hammer body 1, the bottom impact hammer body 1 is assembled with the middle impact hammer body 2 through the external thread top connector 6 in a threaded manner, and the external impact hammer body 3 is assembled with the middle impact hammer body 2 in a threaded manner.
For direct loading and unloading, lateral loading and unloading openings 7 are formed in the outer side surfaces of the middle impact hammer body 2 and the outer impact hammer body 3.
For cooperation loading and unloading, put in and strike hammer 2 lower extreme outside and have the first regular hexagon control frame 8 that protrudes downwards, put in and strike hammer 2 upper end outside and have the first external screw thread top connection frame 9 that protrudes upwards, external impact hammer 3 lower extreme outside has the second regular hexagon control frame 10 that protrudes downwards, put in and strike hammer 2 medial surface and be located first external screw thread top connection frame 9 link and external impact hammer 3 medial surface upper end and all offered internal thread assembly groove 12.
In order to improve the limiting capacity of the external lateral loading and unloading opening 7, an arc limiting frame 13 is movably assembled on one side of the lateral loading and unloading opening 7 on the outer side face of the external impact hammer body 3, a lateral limiting clamping groove 14 is formed on the other side of the lateral loading and unloading opening 7 on the outer side face of the external impact hammer body 3, and an integral limiting buckle 15 matched with the lateral limiting clamping groove 14 is arranged on the inner side arc face of the arc limiting frame 13.
For the fit-in internal assembly, the externally threaded top connection head 6 is internally fixed with a transverse connecting rod 16 for the tying-in cable 4.
Lateral loading and unloading grooves for assembling the transverse connecting rods 16 are symmetrically formed in the inner side of the external thread top connector 6, the transverse connecting rods 16 are inserted from the opening ends of the lateral loading and unloading grooves, then the transverse connecting rods 16 are rotated to insert two sides of the transverse connecting rods 16 into the limiting grooves on two sides, and then loosening can be avoided.
In order to cooperate with elastic extrusion, thereby improving the assembly stability and firmness between the cable 4 and the transverse connecting rod 16, the lower end of the bottom impact hammer body 1 is provided with an inner telescopic hole 17 for installing the regular hexagon control hammer head 5, the inner side surface of the inner telescopic hole 17 is provided with an inner extrusion groove 19 for internally arranging an extrusion spring 18, the inner top end of the regular hexagon control hammer head 5 positioned in the inner telescopic hole 17 is provided with an inner extrusion plate 20 with an integrated structure protruding inwards of the inner extrusion groove 19, and the top end of the inner extrusion plate 20 is provided with an arc-shaped limiting groove 21 for improving the stability and limiting capacity of the cable 4 and the transverse connecting rod.
The primary and secondary type matched sleeve hammer for the drop hammer impact machine adopts a primary and secondary type sleeving design, and the overall quality and the size of the matched sleeve hammer can be changed according to the needs, so that the combined sleeve hammer is suitable for different test articles and test environments, and the test modes are more various; the bottom impact hammer body 1, the middle impact hammer body 2 and the external impact hammer body 3 are assembled in a threaded assembly mode, the lateral loading and unloading notch 7 on the outer side of the screw is utilized to directly assemble on the outer side without disassembly, loading and unloading operation is simpler and more convenient, and the assembly firmness and stability are more excellent.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.