Antiaircraft gun machine for building demolition

Abstract

The utility model discloses an antiaircraft gun machine for building demolition, which comprises an impact gun body fixed on an engineering machinery big arm and communicated with a machinery high-pressure oil way, and a punch rod arranged on the impact gun body and capable of stretching back and forth, and a plurality of energy-absorbing steel balls capable of rolling are arranged in the punch rod. When the punch rod is pushed by hydraulic oil in the impact gun body in advance to make contact with rocks and demolished buildings to conduct impact crushing, the counter-acting force of impact is transmitted to the punch rod, and meanwhile the energy-absorbing steel balls in the punch rod are driven to roll forwards to abut against the front side face of a cavity of the punch rod. The impact force generated by rolling of the energy-absorbing steel balls counteracts part of the counter-acting force of the impact, the energy-absorbing steel balls collide with one another under the influence of the recoil force, part of the recoil force is converted into internal energy generated when the energy-absorbing steel balls collide, and the energy-absorbing steel balls are arranged in the punch rod to effectively counteract the counter-acting force of the impact to a certain degree. And the situations that the impact cannon body is damaged due to long-time resonance, the mechanical stability is reduced and the service life is prolonged are avoided.

Description

Technical Field

[0001] The utility model relates to the field of building accessories, in particular to an anti-aircraft gun machine for demolishing buildings. Background Art

[0002] The anti-aircraft hammer for building demolition is a heavy mechanical equipment, mainly used in engineering construction such as crushing rocks and demolishing buildings. It is powered by a hydraulic system. The hydraulic pump converts liquid pressure into mechanical energy and transmits it to the actuator of the hammer through hydraulic pipelines. The liquid pressure provided by the hydraulic pump realizes the reciprocating motion of the striking mechanism.

[0003] In the prior art, the punch rod of the anti-aircraft gun is a solid conical metal rod. When the punch rod is used to crush rocks and demolish buildings, the reaction force of the impact is directly transmitted to the impact gun body through the punch rod, causing the impact gun body to be damaged by long-term resonance, and the mechanical stability and service life are reduced. The punch rod cannot play a certain offsetting effect on the reaction force of the impact. Utility Model Content

[0004] The purpose of the utility model is to solve any one of the problems in the above-mentioned technologies, thereby proposing an anti-aircraft gun machine for demolishing buildings.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-aircraft gun machine for building demolition, including an impact gun body fixed on the boom of the engineering machinery and connected to the mechanical high-pressure oil circuit, and a punch rod which can be telescoped forward and backward, and a plurality of rollable energy-absorbing steel balls are arranged inside the punch rod. When the punch rod reciprocates to impact the building demolition, the energy-absorbing steel balls can effectively offset a part of the recoil force received by the punch rod.

[0006] Furthermore, a hydraulic chamber is provided inside the impact gun body, a penetrating sliding chamber is provided at the front end center of the hydraulic chamber, a guide chamber is provided on the front side wall of the sliding chamber, an oil seal chamber is provided on the rear end side wall of the sliding chamber, and a forward thrust oil circuit and a retract oil circuit are distributed above and below the rear end of the impact gun body, the forward thrust oil circuit is connected to the rear end face of the hydraulic chamber, and the retract oil circuit is connected to the front end face of the hydraulic chamber.

[0007] Furthermore, a punch rod is provided in the sliding cavity of the impact gun body for sliding back and forth. The punch rod is in the shape of a T-stage round rod with a conical head at the front section. The top step of the punch rod is slidably provided in the hydraulic cavity. A hollow cylindrical chamber is provided inside the punch rod. A plurality of rollable energy-absorbing steel balls are provided in the cavity inside the punch rod.

[0008] Furthermore, a sliding bearing is fixedly embedded in the guide cavity of the impact gun body, and the inner wall of the sliding bearing is slidingly sleeved on the punch rod.

[0009] Furthermore, an oil seal sleeve is fixedly embedded in the oil seal cavity of the impact gun body, and a sealing sliding sleeve on the inner wall of the oil seal sleeve is arranged on the punch rod.

[0010] The beneficial effect of the utility model is that when the punch rod is pushed by the hydraulic oil in the impact gun body to contact the rock and the demolished building for impact crushing, the reaction force of the impact is transmitted to the punch rod, and at the same time, the energy-absorbing steel balls in the punch rod are driven to roll forward and counteract the front side of the punch rod cavity, the rolling impact of the energy-absorbing steel balls and a part of the reaction force of the impact are offset, and the energy-absorbing steel balls collide with each other under the influence of the recoil force, and part of the recoil force is converted into the internal energy of the energy-absorbing steel balls when they collide. By arranging the energy-absorbing steel balls in the punch rod, the reaction force of the impact is effectively offset to a certain extent, thereby avoiding the impact gun body being damaged by long-term resonance, and the mechanical stability and service life being reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model as a whole;

[0013] Figure 3 It is a cross-sectional view of the impact gun body of the utility model;

[0014] Figure 4 It is a cross-sectional view of the punch rod of the utility model.

[0015] exist Figures 1 to 4 The corresponding relationship between the component names or lines and the figure numbers is: impact gun body 1, hydraulic chamber 11, sliding chamber 12, oil seal chamber 13, guide chamber 14, forward oil circuit 15, retract oil circuit 16, punch rod 2, sliding bearing 3, oil seal sleeve 4, energy absorbing steel ball 5. DETAILED DESCRIPTION

[0016] Please refer to Figures 1 to 4 ;

[0017] The present embodiment provides an anti-aircraft gun machine for building demolition, comprising an impact gun body 1 fixed on the boom of an engineering machine and connected to the machine's high-pressure oil circuit, and a punch rod 2 arranged thereon and capable of being telescoped forward and backward, wherein a plurality of rollable energy-absorbing steel balls 5 are arranged inside the punch rod 2, and when the punch rod 2 reciprocates to impact the building demolition, the energy-absorbing steel balls 5 can effectively offset a portion of the recoil force exerted on the punch rod 2.

[0018] Preferably, a hydraulic chamber 11 is provided inside the impact gun body 1, a penetrating sliding chamber 12 is provided at the front end center of the hydraulic chamber 11, a guide chamber 14 is provided on the front side wall of the sliding chamber 12, an oil seal chamber 13 is provided on the rear end side wall of the sliding chamber 12, and a forward thrust oil circuit 15 and a retract oil circuit 16 are distributed above and below the rear end of the impact gun body 1, the forward thrust oil circuit 15 is connected to the rear end face of the hydraulic chamber 11, and the retract oil circuit 16 is connected to the front end face of the hydraulic chamber 11.

[0019] In a specific embodiment, the forward thrust oil circuit 15 is connected to the rear end face of the hydraulic chamber 11, and the retract oil circuit 16 is connected to the front end face of the hydraulic chamber 11. The high-pressure oil circuit on the engineering machinery arm is connected to the forward thrust oil circuit 15 and the retract oil circuit 16 through a switch valve. When hydraulic oil is introduced into the forward thrust oil circuit 15, the punch rod 2 is pushed forward, and when hydraulic oil is introduced into the retract oil circuit 16, the punch rod 2 is pulled back.

[0020] Preferably, a punch rod 2 is slidably inserted into the sliding cavity 12 of the impact gun body 1, and the punch rod 2 is in the shape of a T-stage round rod with a conical head at the front section. The top step of the punch rod 2 is slidably inserted into the hydraulic cavity 11, and a hollow cylindrical chamber is arranged inside the punch rod 2. A plurality of rollable energy-absorbing steel balls 5 are arranged in the cavity inside the punch rod 2.

[0021] In a specific embodiment, the energy-absorbing steel ball 5 is located in the cavity inside the punch rod 2 and can slide freely. When the punch rod 2 moves to one side, the energy-absorbing steel ball 5 will roll in the same direction at a speed lower than the punch rod 2 under the action of inertia and friction until it contacts the end face of the cavity of the punch rod 2.

[0022] Preferably, a sliding bearing 3 is fixedly embedded in the guide cavity 14 of the impact gun body 1 , and the inner wall of the sliding bearing 3 is slidably sleeved on the punch rod 2 .

[0023] Preferably, the oil seal cavity 13 of the impact gun body 1 is fixedly embedded with an oil seal sleeve 4 , and the inner wall of the oil seal sleeve 4 is sealed and slidably sleeved on the punch rod 2 .

[0024] In a specific embodiment, the sliding bearing 3 is used to provide guidance for the forward and backward sliding of the punch rod 2 to prevent it from vibrating up and down during impact and causing scratches on the inner wall of the impact gun body 1. The oil seal sleeve 4 seals the hydraulic oil in the impact gun body 1 to prevent the hydraulic oil from leaking and causing the oil pressure to be unstable and the impact force to be insufficient.

[0025] When the utility model is used, when the punch rod 2 is pushed by the hydraulic oil in the impact gun body 1 to contact the rock and the demolished building for impact crushing, the reaction force of the impact is transmitted to the punch rod 2, and at the same time, the energy-absorbing steel ball 5 in the punch rod 2 is driven to roll forward and resist the front side of the cavity of the punch rod 2, the rolling impact force of the energy-absorbing steel ball 5 and a part of the reaction force of the impact are offset, and the energy-absorbing steel balls 5 are affected by the recoil force and collide with each other, converting part of the recoil force into the internal energy of the energy-absorbing steel balls 5 when they collide.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-aircraft gun machine for demolishing buildings, comprising an impact gun body (1) fixed on the boom of an engineering machine and connected to the high-pressure oil circuit of the machine, and a punch rod (2) arranged thereon and capable of being telescopically moved forward and backward, characterized in that: A plurality of rollable energy-absorbing steel balls (5) are arranged inside the punch rod (2). When the punch rod (2) reciprocates to demolish a building, the energy-absorbing steel balls (5) can effectively offset a portion of the recoil force exerted on the punch rod (2).

2. The anti-aircraft gun for building demolition according to claim 1, characterized in that: The impact gun body (1) is provided with a hydraulic chamber (11) inside, a sliding chamber (12) penetrating the front center of the hydraulic chamber (11), a guide chamber (14) is provided on the front side wall of the sliding chamber (12), an oil seal chamber (13) is provided on the rear side wall of the sliding chamber (12), and a forward oil passage (15) and a retracting oil passage (16) are distributed up and down at the rear end of the impact gun body (1), the forward oil passage (15) is connected to the rear end surface of the hydraulic chamber (11), and the retracting oil passage (16) is connected to the front end surface of the hydraulic chamber (11).

3. The anti-aircraft gun machine for building demolition according to claim 2, characterized in that: A punch rod (2) is slidably inserted into the sliding cavity (12) of the impact gun body (1) in a forward and backward manner. The punch rod (2) is in the shape of a T-stage round rod with a conical head at the front. The top step of the punch rod (2) is slidably inserted into the hydraulic cavity (11). A hollow cylindrical chamber is provided inside the punch rod (2). A plurality of rollable energy-absorbing steel balls (5) are provided in the cavity inside the punch rod (2).

4. The anti-aircraft gun machine for building demolition according to claim 2, characterized in that: A sliding bearing (3) is fixedly embedded in the guide cavity (14) of the impact gun body (1), and the inner wall of the sliding bearing (3) is slidably sleeved on the punch rod (2).

5. The anti-aircraft gun machine for building demolition according to claim 2, characterized in that: An oil seal sleeve (4) is fixedly embedded in the oil seal cavity (13) of the impact gun body (1), and a sealing sliding sleeve on the inner wall of the oil seal sleeve (4) is arranged on the punch rod (2).

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