KR0121298Y1 - Buffer device of percussion boring tool - Google Patents

Abstract

The present invention is used to crush hard rock and dismantle reinforcing steel structures, and to support shock absorbers of impact motion tools, which are easy to assemble and disassemble, especially with support brackets (1) and (11) for supporting impact motion tools. In the upper and the side of the impact movement tool 9, the upper and the side impact absorbing members 21, 7 which are soft viscoelastic materials are installed at the closest positions of the upper and lower sides and the vibration source. It is a shock absorber of the impact movement tool configured to prevent the movement of the impact movement tool 9 up, down, left and right, and the shock absorbing member fixing clamp 10, which attenuates the noise and vibration generated during rock grinding and destruction work. Prevent pollution and extend the life of the structure surrounding the impact movement tool (8), the structure of the structure can be reduced and produced by using a simple structure and a small volume clamp 10 To reduce the manufacturing cost according to the definition and simplify the assembly is characterized by the breakdown of the field easily.

Description

Shock Absorber of Impact Tool

Figure 1 (a) (b) is a side view and front view of the clamp attached state of the present invention.

Figure 2 (a) (b) is a side and front view of the upper and side impact absorbing member attached state of the present invention.

Figure 3 (a) (b) is a side view and a cross-sectional view of the shock absorber of the impact tool according to the present invention.

4 is a perspective view of the clamp of the present invention.

5 is an exploded perspective view of the side impact absorbing member and the impact movement tool of the present invention.

6 is a state in which a conventional impact movement tool is mounted on a support bracket.

* Explanation of symbols for main parts of the drawings

7: side impact absorbing member 9,69: impact tool

11, 1: Upper and lower support bracket 10: Shock absorbing member fixing clamp

18: Insertion groove 19: Strike rod

21 Top Shock Absorption Member

The present invention relates to a shock absorber of the impact movement tool. Especially, the impact rod is reciprocated up and down by the reciprocating movement of a piston in a cylinder using hydraulic or pneumatic pressure in a reinforcing structure fracture site or a construction site to deliver strong impact energy to the fracture object. The present invention relates to a cushioning device for impact movement tools used to crush hard rock and dismantle reinforcing steel structures.

Conventionally, as shown in FIG. 6, an assembly form of the impact movement tool is provided between the impact movement tool 69 and the pair of support brackets 61, and the projections 621 of the metal fixing plates are interposed therebetween. ) Is inserted into the groove 691 of the impact movement tool 69 and is fixed by fastening the support bracket 61 and the metal fixing plate 62 and the impact movement tool 69 with the fastening bolts 64. When the striking rod 19 of the movement tool 9 receives the force of the piston, the impact movement tool 69 is severely moved up and down and left and right by a strong repulsive force and an operation at an irregular position of the worker when striking a rock or a crushed object. The support brackets 61, which vibrated and received this vibration through the metal fixing plate 62, generated anti-gravity movements with severe noise, causing worker fatigue and environmental noise. Particularly, the support brackets 61 vibrated severely. Silver sieve By bringing a lot of defects due to repeated impact load and fatigue vibration in the bolt bolt 64, it was a factor to shorten the life of the impact tool assembly and the support bracket 61 is a single member long in the axial direction impact tool At the time of attachment and detachment of (69), at least as much as the axial length of the support brackets 61 had to have an assembly stroke. 4. In the shock absorber of the impact motion tool 69, which was filed by the ruler 95-9497, the support brackets were formed in the upper and lower parts in order to shorten the length of the assembly stroke so that the detachable parts could be freely assembled and the radiation of the impact motion tool was released. In order to alleviate the noise and impact caused by the vibration, left and right plates and cross plates are placed on the outer surface of the casing of the impact movement tool. The upper and lower surfaces of the left and right plates and the protrusions of the cross plate are installed with rubber buffers and an elastic rubber ring is inserted into the outer circumferential surface of the striking rod, but the left and right plates and the cross plate between the support bracket and the housing to install the buffer rubbers. By separately installing, the area of the structure enveloping the impact movement tool was increased and the production cost was increased because the structure was not easy to manufacture.

The present application was devised by directly attaching a pair of fixing clamps and shock absorbing members made of viscoelastic material to the impact movement tool and the upper and lower support brackets to solve the problems as described above.

The shock absorber for the impact movement tool of the present invention attaches a horizontal horizontal plate 11-1 of closed type and a horizontal crate having an opening in the center to the upper and lower portions, respectively, as referred to in FIG. Attach the bracket 11 and the horizontal plates 1-1 and 1-2 corresponding to the horizontal plates 11-1 and 11-2 of the upper support bracket 11 to the upper and lower surfaces thereof, The lower support bracket coupled with the bolts 13-1, 13-2 and nuts 12-1, 12-2 so that the upper surface is detachable with the lower surface of the upper support bracket 11 through the through hole 1) and an impact movement tool (9) having a striking rod (19) capable of reciprocating motion in the lower portion of the inner side and holding the outer portion as a casing (9-1) and mounted in the upper and lower support brackets (11) (1). ) And a shock motion ball having a buffer rubber ring 8 fixed to the outer circumferential surface of the hitting rod 19 and fixed using a blocking plate 18. In the shock absorber of Fig. 1, as shown in FIG. 1 and FIG. 4, the plate 10-2 on which the bolt holes 10-1 corresponding to the bolts 13-1 are formed is formed. The bolts 13-1 together with the upper and lower horizontal plates 1-1 and 1-2 positioned at the connection portions of the upper and lower support brackets 11 and 1, insisting a close contact 10-3 on the lower portion. And the pair of shock absorbing member fixing clamps 10 which are fixed by fastening the nut 12-1 and the protrusions 24 formed on the side as referred to in FIGS. 2 to 3 and 5. Side impacts which are inserted into the insertion recesses 18 formed on both sides of the outer side of the exercise tool 9, and the upper surface and a part of the side surface are closely adhered to and fixed in the close contact 19-3 of the clamps 10 for fixing the shock absorbing member. It is seated on the upper surface of the absorbent discharge material (7) and the impact movement tool (9) and the upper surface is in contact with the upper surface of the upper plate (11-1) of the upper support bracket (11) The upper shock absorbing member 21 is fixed. The upper shock absorbing member 21 is made of viscoelastic hardening resin, hardened nylon or urethane, and the side shock absorbing member as referred to in FIG. 7 is an inner piece 7-1 including the protruding portion 24 and made of steel, and an outer piece made of viscoelastic hardening resin, hardened nylon or urethane, and melt-bonded with the inner piece 7-1. It consists of (7-2). Referring to the effect of the present invention is configured as described above are as follows.

The outer side contacting with the inner surface of the lower support bracket (1) to strengthen the binding by acting as a close key when engaging the insertion groove (18) of the impact movement tool by using the protrusion 24 of the side shock absorbing member made of steel (7-2) is made of a viscoelastic material to prevent the severe noise and vibration issued during the crushing operation of the crushing object of the striking rod 19 to the upper and lower support brackets (11) (1), the upper surface shock absorption The member 21 absorbs the vertical repulsive force applied to the striking rod 19 during the crushing operation to stop the upward force of the impact movement tool 9 and at the same time propagate to the upper and lower support brackets 11 and 1. And absorbs radiation noise and surrounds the lateral shock (7) absorbing member (7) by using the clamp for clamping the shock absorbing member (10) for the vertical and horizontal forces applied by the striking rod (19). Front, rear, left and right of the side shock absorbing member (7) Thereby preventing the movement.

Therefore, by attenuating noise and vibration generated during rock grinding and breaking operations, it is possible to prevent environmental pollution and to extend the life of the structure surrounding the impact movement tool 9 and to use the clamp 10 having a simple structure and a small volume. It is possible to reduce the area of the structure and to reduce the production cost according to the simplification of the production process, there is also an effect of easy assembly and disassembly in the workplace.

Claims (3)

The upper support bracket 11 and the upper support bracket 11 having a sealed type are attached to the upper and lower portions of the horizontal plate 11-1 and the horizontal plate 11-2 having an opening at the center thereof, respectively. Horizontal plates (1-1) (1-2) corresponding to the horizontal plates (11-1) (11-2) are attached to the upper and lower surfaces, and the upper surface is the lower surface and the upper support bracket (11) with the through hole inside. And a lower support bracket 1 coupled with bolts 13-1, 13-2 and nuts 12-1, 12-2 so that attachment and detachment are possible, and a blow rod capable of reciprocating in the inner lower portion ( 19) and the outer side is held by the casing 9-1, and the impact movement tool 9 mounted in the upper and lower support brackets 11 and 1 and the outer periphery of the striking rod 19 are inserted. In the shock absorber of the impact movement tool comprising a cushioning rubber ring (8) fixed by using a blocking plate (19), a bolt corresponding to the bolts (13-1) at the top Forming the plate 10-2 on which the field 10-1 is laid, and the upper and lower horizontal plates positioned at the connection portion of the upper and lower support brackets 11 and 1, forming a close contact 10-3 at the bottom thereof. 1-1 and 1102 together with the bolts 13-1 and the nuts 12-1, a pair of shock absorbing member fixing clamps 10 and the protrusions 24 formed on the side Inserted into the insertion groove (18) formed on both sides of the outer side of the impact movement tool (9), and the upper and side portions of the impact absorbing member fixing clamps (10) in close contact with the tightly fixed (10-3) A top shock absorbing member 21 seated on a top surface of the side impact absorbing member 7 and the impact movement tool 9 and fixed to the top surface of the upper plate 11-1 of the upper support bracket 11 and fixed thereto. Shock absorber of the impact movement tool, characterized in that made by. The shock absorber of claim 1, wherein the upper shock absorbing member (21) is made of a viscoelastic hardening resin, hardened nylon, urethane, or the like. 2. The side impact absorbing member (7) according to claim 1, wherein the side impact absorbing member (7) comprises the inner portion (7-1) made of steel and the viscoelastic hardening resin, hardened nylon, or urethane including the protruding portion (24). Shock absorber of the impact movement tool, characterized in that consisting of (7-) and the outer piece (7-2) that is melt-bonded.