Drill rod with dust removal function and breaking hammer composed of drill rod

Abstract

The utility model discloses a drill rod with a dust removal function and a breaking hammer composed of the drill rod, and belongs to the field of breaking hammer equipment. The drill rod with the dust removal function comprises a drill rod body, and a connecting flange is arranged at the top of the drill rod body. A plurality of water spraying holes with the bottoms open are formed in the drill rod body, a water storage cavity is connected to the upper portions of the water spraying holes in a penetrating mode, the inner diameter of the water storage cavity is larger than that of the water spraying holes, a stuffy rod is arranged in the water storage cavity in a sliding mode, the outer diameter of the stuffy rod is equal to the inner diameter of the water storage cavity, and a plurality of water leakage grooves are formed in the circumferential face of the stuffy rod in a concave mode. The outer diameter of the ejector rod is smaller than that of the closing rod. A sleeve ring which slides up and down is sleeved outside the drill rod body, and the top end of the ejector rod is fixedly connected with the sleeve ring. And the upper part of the water storage cavity is communicated and connected with a water inlet. Water is sprayed to remove dust only when the drill rod moves downwards to hit hard materials, automatic on-off type water spraying is adopted, the water resource utilization rate is high, and the effective dust removal time is longer under the condition of the water tank with the same volume.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of breaking hammer equipment, and particularly relates to a drill rod with a dust removal function and a breaking hammer composed of the same. BACKGROUND

[0002] A breaking hammer is a heavy equipment used for breaking hard materials such as rocks and concrete. It is mainly applied to the fields of building construction, demolition work and mining. The power source of the breaking hammer is provided by an external hydraulic system. Usually, the hydraulic system is powered by an engineering machine such as a loader or an excavator. These machines are equipped with powerful engines and can provide the breaking hammer with high-pressure oil.

[0003] After the high-pressure oil from the power source enters the breaking hammer, it drives the internal piston to reciprocate. The reciprocating piston moves the striking part of the breaking hammer, i.e., the drill rod, to break the hard material. When the drill rod breaks the hard material, a large amount of dust is generated, which affects the environmental quality of the construction area.

[0004] A cooling and dust suppression device for a breaking hammer drill rod with the publication number CN201713752U can suppress and eliminate dust during the rock breaking process. The device is provided with a cooling nozzle at the front end of the breaking hammer. The cooling nozzle is divided into a jet nozzle and / or an atomizing nozzle. Before the breaking hammer breaks the rock, the cooling and dust suppression device is connected to a high-pressure water source. When the breaking hammer impacts the rock, the jet nozzle and the atomizing nozzle work alone or synchronously. The jet nozzle forms a jet, and the jet converges at the head of the drill rod, achieving rapid cooling of the drill rod head during the breaking of hard rock by the breaking hammer. The water mist formed by the atomizing nozzle surrounds the drill rod, and the dust is isolated and suppressed by the water mist.

[0005] This patent sprays water mist from the atomizing nozzle during the working process of the breaking hammer. However, in actual operation, dust is only generated when the drill rod moves downward and contacts hard materials such as hard rock. Therefore, when the drill rod moves upward, the atomizing nozzle continues to spray water mist, which causes waste of water resources. Moreover, the breaking hammer is basically operated outdoors, and a water tank is used to provide water for dust removal. The capacity of the water tank is limited, and if water continues to be sprayed during the upward movement of the drill rod, the effective dust removal time will be shortened. CONTENT OF THE UTILITY MODEL

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a drill rod with a dust removal function and a breaking hammer composed of the same. The present application sprays water for dust removal only when the drill rod moves downward and strikes hard materials. The automatic on-off type water spraying is adopted, the utilization rate of water resources is high, and the effective dust removal time is longer under the condition of the same volume of water tank.

[0007] The technical solution adopted by the present application to solve the existing problems is as follows:

[0008] The drill rod with dust removal function comprises a drill rod body, and a connecting flange is arranged at the top of the drill rod body.

[0009] The drill rod body is internally provided with a plurality of water spray holes arranged in an open bottom mode, a water storage cavity is connected through the upper portion of the water spray hole, the inner diameter of the water storage cavity is larger than the inner diameter of the water spray hole, a plug rod is slidably arranged in the water storage cavity, the outer diameter of the plug rod is equal to the inner diameter of the water storage cavity, a plurality of water leakage grooves are concavely arranged on the circumferential surface of the plug rod, and a top rod is coaxially fixed to the upper portion of the plug rod, and the outer diameter of the top rod is smaller than the outer diameter of the plug rod.

[0010] The drill rod body is externally provided with a sleeve ring which slides up and down, and the top end of the top rod is fixedly connected with the sleeve ring.

[0011] The water storage cavity is connected through the upper portion of the water inlet.

[0012] Preferably, the open portion of the water spray hole is located on the sidewall of the conical bottom of the drill rod body.

[0013] Preferably, a reduced diameter portion is arranged on the drill rod body, and the sleeve ring is slidably arranged on the reduced diameter portion.

[0014] Preferably, a first spring is arranged between the sleeve ring and the connecting flange, and the first spring is sleeved on the drill rod body.

[0015] Preferably, a flange ring is fixed to the upper portion of the sleeve ring through a connecting plate.

[0016] Preferably, the inner diameter of the flange ring is larger than the outer diameter of the connecting flange, and the flange ring is coaxially arranged with the connecting flange.

[0017] A breaking hammer comprises the above-mentioned drill rod with dust removal function and a breaking hammer body, the flange ring is fixedly connected with the shell of the breaking hammer body, and the connecting flange is fixedly connected with the piston rod of the breaking hammer body.

[0018] Preferably, a water tank is fixedly connected with the breaking hammer body, and a drain pipe of the water tank is connected through a pipeline with the water inlet.

[0019] Preferably, the drain pipe is connected through a water distribution main pipe with the water inlet through a water distribution hose.

[0020] Preferably, a pressing plate which slides up and down is horizontally arranged in the water tank, a second spring is arranged between the bottom of the pressing plate and the bottom surface of the water tank, an oil inlet pipe is connected through the top of the water tank, and a water adding pipe is arranged on the sidewall of the water tank and connected with the inner cavity of the water tank.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] (1) The dust removal water sprayed from the water spray hole is linked with the vertical sliding of the drill rod body. When the drill rod body is not working, the water spray hole automatically closes. At the same time, the water spray volume is the largest when the drill rod body moves down to the lower stop point. When the drill rod body is at the upper stop point, the water spraying stops. This ensures the dust removal effect while saving water.

[0023] (2) The drainage pressure of the water tank is controlled by hydraulic oil, so that it is linked with the operation of the drill rod body. Attached Figure Description

[0024] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a first structural diagram of a drill rod with dust removal function connected to a water tank according to this application.

[0026] Figure 2 This is a second structural diagram of a drill rod with dust removal function connected to a water tank according to this application.

[0027] Figure 3 This is a side view of the connection between a dust removal rod and a water tank according to this application.

[0028] Figure 4 This is a cross-sectional view of a drill rod with a dust removal function according to this application.

[0029] Figure 5 This is a structural diagram of a synchronizer in a drill rod with a dust removal function, as described in this application.

[0030] Figure 6 This is a cross-sectional view of the water tank in this application.

[0031] In the diagram: 1-Beat rod body, 101-Connecting flange, 102-Reduced diameter section, 103-Water spray hole, 104-Water storage chamber, 105-Water inlet, 2-Collar ring, 3-Top rod, 4-Blind rod, 401-Water leakage groove, 5-Connecting plate, 6-Flange ring, 7-First spring, 8-Support seat, 9-Water tank, 901-Drain pipe, 902-Water inlet pipe, 10-Oil inlet pipe, 11-Pressure plate, 12-Second spring, 13-Main water distribution pipe, 14-Water distribution hose. Detailed Implementation

[0032] The attached figure shows a preferred embodiment of a chisel with a dust removal function and a hydraulic breaker composed therefrom. The present application will be further described in detail below with reference to the attached figure.

[0033] Depend on Figure 4 As shown, a drill rod with dust removal function includes a drill rod body 1. The drill rod body 1 includes a cylindrical rod and a conical bottom that are coaxially fixedly connected. A connecting flange 101 is provided at the top of the drill rod body 1. The outer diameter of the connecting flange 101 is larger than the outer diameter of the drill rod body 1.

[0034] The drill rod body 1 is internally provided with a plurality of water spray holes 103 arranged in an open bottom manner, the water spray holes 103 are vertically arranged, and the opening of the water spray holes 103 is located on the side wall of the conical bottom of the drill rod body 1.

[0035] A water storage cavity 104 is coaxially and throughly connected above the water spray hole 103, and the inner diameter of the water storage cavity 104 is greater than the inner diameter of the water spray hole 103. A damp rod 4 is slidably arranged inside the water storage cavity 104, and the outer diameter of the damp rod 4 is equal to the inner diameter of the water storage cavity 104. Figure 5 As shown in the figure, a plurality of water leakage grooves 401 are concavely arranged on the circumferential surface of the damp rod 4, a top rod 3 is coaxially and fixedly arranged above the damp rod 4, and the outer diameter of the top rod 3 is smaller than the outer diameter of the damp rod 4.

[0036] The drill rod body 1 is externally sleeved with a sleeve ring 2 which slides up and down, and the top end of the top rod 3 is fixedly connected with the sleeve ring 2. The water storage cavity 104 is throughly connected with a water inlet 105 above the water storage cavity 104.

[0037] In order to leave a space for the movement of the top rod 3, the drill rod body 1 is provided with a reduced diameter portion 102, the outer diameter of the reduced diameter portion 102 is smaller than the outer diameter of the cylindrical rod of the drill rod body 1, and the sleeve ring 2 is slidably arranged on the reduced diameter portion 102. The top end of the top rod 3 penetrates into the inside of the reduced diameter portion 102 and is fixedly connected with the bottom surface of the sleeve ring 2.

[0038] The first spring 7 is arranged between the sleeve ring 2 and the connecting flange 101 and is sleeved on the drill rod body 1.

[0039] Under the pushing action of the first spring 7, the sleeve ring 2 is clamped on the bottom surface of the reduced diameter portion 102, at the same time, the bottom surface of the damp rod 4 abuts against the junction of the water storage cavity 104 and the water spray hole 103, the bottom surface of the damp rod 4 blocks the top inlet of the water spray hole 103, and the water inlet 105 is always outside the damp rod 4.

[0040] The flange ring 6 is fixedly connected with the connecting plate 5 above the sleeve ring 2. The inner diameter of the flange ring 6 is greater than the outer diameter of the connecting flange 101, and the flange ring 6 is coaxially arranged with the connecting flange 101.

[0041] As shown in the figure, a broken hammer comprises the drill rod with dust removal function and a broken hammer body, the broken hammer body is other structure of the broken hammer in the prior art except the drill rod, and since it is completely the same as the prior art, it will not be described in detail in the embodiment. Figures 1 to 3 The flange ring 6 is fixedly connected with the shell of the broken hammer body, and the connecting flange 101 is fixedly connected with the piston rod of the broken hammer body.

[0042]

[0043] ​The hydraulic breaker body is fixedly connected to a water tank 9. In order to avoid excessive drilling in the outer shell of the hydraulic breaker body, in this embodiment, the water tank 9 is fixed on a support base 8, and the support base 8 is fixedly connected to the connecting plate 5.

[0044] The drain pipe 901 of the water tank 9 is connected to the inlet 105 through a pipeline. Specifically, the drain pipe 901 is connected to the main water distribution pipe 13, and the main water distribution pipe 13 is connected to the inlet 105 through the water distribution hose 14.

[0045] Depend on Figure 6 As shown, a sliding pressure plate 11 is horizontally arranged inside the water tank 9. A second spring 12 is provided between the bottom of the pressure plate 11 and the bottom surface of the water tank 9. An oil inlet pipe 10 is connected through the top of the water tank 9, and the oil inlet pipe 10 is connected to the hydraulic system of the breaker body through a pipeline. A water filling pipe 902 is provided on the side wall of the water tank 9 and is connected through the inner cavity thereto.

[0046] During use, the hydraulic system of the hydraulic breaker body is connected to the oil inlet pipe 10 to inject hydraulic oil into the water tank 9. To prevent hydraulic oil contamination, an elastic bladder is provided in the chamber of the water tank 9 located above the pressure plate 11, and the elastic bladder is connected to the oil inlet pipe 10. When hydraulic oil is injected into the elastic bladder, the elastic bladder expands and presses the pressure plate 11 downwards. The pressure plate 11 then presses the water in the chamber of the water tank 9 located below the pressure plate 11, causing the water to flow into the water storage chamber 104 through the main water distribution pipe 13 and the water distribution hose 14.

[0047] During the operation of the hydraulic breaker, when the chisel body 1 moves down to break hard materials, the flange ring 6 is fixed to the hydraulic breaker housing. Therefore, during the downward movement of the chisel body 1, the baffle 4 is not in place, causing the bottom surface of the baffle 4 to separate from the bottom surface of the water storage chamber 104. The water inside the water storage chamber 104 flows into the water spray hole 103 through the water leakage groove 401 and then sprays out to spray and remove dust from the breaking point.

[0048] When the drill rod body 1 moves upward, the blocking rod 4 blocks the water spray hole 103, thus cutting off the water supply and achieving the purpose of saving water. A conical head is provided at the bottom of the blocking rod 4, and the tip of the conical head is inserted into the water spray hole 103. In this way, the water spray volume is only at its maximum when the drill rod body 1 moves to the lower stop point, further achieving the purpose of saving water.

[0049] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A drill rod with dust removal function, comprising a drill rod body (1), the top of the drill rod body (1) is provided with a connecting flange (101), characterized in that: the inside of the drill rod body (1) is provided with a plurality of water spray holes (103) arranged in an open bottom, a water storage cavity (104) is connected through above the water spray hole (103), the inner diameter of the water storage cavity (104) is larger than the inner diameter of the water spray hole (103), a muffled rod (4) is slidably arranged inside the water storage cavity (104), the outer diameter of the muffled rod (4) is equal to the inner diameter of the water storage cavity (104), a plurality of water leakage grooves (401) are concavely arranged on the circumferential surface of the muffled rod (4), a top rod (3) is coaxially fixed above the muffled rod (4), and the outer diameter of the top rod (3) is smaller than the outer diameter of the muffled rod (4). The outside of the drill rod body (1) is sleeved with a sleeve ring (2) that slides up and down, and the top end of the top rod (3) is fixedly connected with the sleeve ring (2). The water storage cavity (104) is connected through with a water inlet (105) above.

2. The drill rod with dust removal function according to claim 1, characterized in that: The open end of the water spray hole (103) is located on the sidewall of the conical bottom of the drill rod body (1).

3. The drill rod with dust removal function according to claim 1, characterized in that: The drill rod body (1) is provided with a reduced diameter portion (102), and the sleeve ring (2) is slidably arranged on the reduced diameter portion (102).

4. The drill rod with dust removal function according to claim 1 or 2 or 3, characterized in that: A first spring (7) is arranged between the sleeve ring (2) and the connecting flange (101), and the first spring (7) is sleeved on the drill rod body (1).

5. The drill rod with dust removal function according to claim 1 or 2 or 3, characterized in that: A flange ring (6) is fixedly arranged above the sleeve ring (2) through a connecting plate (5).

6. The drill rod with dust removal function according to claim 5, characterized in that: The inner diameter of the flange ring (6) is larger than the outer diameter of the connecting flange (101), and the flange ring (6) is coaxially arranged with the connecting flange (101).

7. A breaking hammer, comprising the drill rod with dust removal function according to claim 6 and a breaking hammer body, characterized in that: The flange ring (6) is fixedly connected with the outer shell of the breaking hammer body, and the connecting flange (101) is fixedly connected with the piston rod of the breaking hammer body.

8. The breaking hammer according to claim 7, characterized in that: The breaking hammer body is fixedly connected with a water tank (9), and a drain pipe (901) of the water tank (9) is connected through with the water inlet (105) through a pipeline.

9. The breaking hammer according to claim 8, characterized in that: The drain pipe (901) is connected through with a water distribution main pipe (13), and the water distribution main pipe (13) is connected through with the water inlet (105) one by one through water distribution hoses (14).

10. The breaking hammer according to claim 8 or 9, characterized in that: ​ The water tank (9) is internally horizontally arranged with an up-and-down sliding pressing plate (11), a second spring (12) is arranged between the bottom of the pressing plate (11) and the bottom surface of the water tank (9), the top of the water tank (9) is throughly connected with an oil inlet pipe (10), and the side wall of the water tank (9) is provided with a water adding pipe (902) which is throughly connected with the inner cavity of the water tank (9).

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