Automatic siphon lubrication device

Abstract

The present invention relates to the technical field of lubrication devices, and discloses an automatic siphon lubrication device, including an oil storage tank, a high-pressure air pipe, and an oil delivery pipe. The oil storage tank stores lubricating oil, the inner end of the oil delivery pipe is penetrated by the oil storage tank and placed in the lubricating oil, the outer end of the oil delivery pipe extends to connect with the outer end of the high-pressure air pipe, and the oil delivery pipe delivers the lubricating oil to the high-pressure air pipe based on the pressure difference; the inner end of the high-pressure air pipe connects with the air delivery device, the air delivery device is used to supply high-pressure airflow, and the outer end of the high-pressure air pipe connects with the water delivery device; water, lubricating oil and high-pressure airflow are mixed and atomized and then delivered to the down-the-hole hammer drill. The air delivery device delivers the high-pressure airflow along the high-pressure air pipe, the oil delivery pipe delivers the lubricating oil to the high-pressure air pipe, and the water delivery device also delivers water to the high-pressure air pipe. By utilizing the siphon effect, the lubrication process does not need to set up a power device. At the same time, by adopting this method, the lubricating particle size is smaller, the follow-up performance is stronger, more lubricating oil mist reaches the pneumatic components, and the lubrication effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of lubrication devices, and more specifically, to automatic siphon lubrication devices. Background Art

[0002] During the down-the-hole hammer drilling process, the high-wind impactor reciprocates at a high frequency, driving the down-the-hole hammer drill bit to impact, crush and drill into holes. In order for the down-the-hole hammer head to work normally for a long time, its pneumatic components must be lubricated.

[0003] At present, common pneumatic components are mainly lubricated by oil mist devices. Oil mist devices are a special oil injection device that uses compressed air as power to mix lubricating oil into compressed air so that the compressed air has the ability to lubricate pneumatic components. It mainly uses the flow of air to transport lubricating oil into the piping to lubricate various pneumatic components to ensure that the pneumatic device continues to work normally.

[0004] In the prior art, the oil mist device is generally integrated with the gas storage tank of the down-the-hole hammer, and consists of an upper and a lower tank body, the upper tank is filled with oil, and the lower tank is filled with mixed gas; the lower tank is externally connected to the air compressor and the pipeline of the down-the-hole hammer, and the upper tank adopts a pressurizing device and allows the oil to seep into the lower tank through the set pipeline to be mixed with the gas and output. No atomization is performed in the process, and the lubrication effect is poor. Summary of the invention

[0005] The object of the present invention is to provide an automatic siphon lubrication device, aiming to solve the problem of poor lubrication effect on a down-the-hole hammer in the prior art.

[0006] The present invention is implemented as follows: an automatic siphon lubrication device includes an oil storage tank, a high-pressure air pipe and an oil delivery pipe, the oil storage tank stores lubricating oil, the inner end of the oil delivery pipe passes through the oil storage tank and is placed in the lubricating oil, the outer end of the oil delivery pipe extends to connect with the outer end of the high-pressure air pipe, and the oil delivery pipe delivers the lubricating oil to the high-pressure air pipe based on the pressure difference; the inner end of the high-pressure air pipe connects with the air delivery device, the air delivery device is used to supply high-pressure airflow, and the outer end of the high-pressure air pipe connects with the water delivery device; water, lubricating oil and high-pressure airflow are mixed and atomized and then delivered to the down-the-hole hammer drill.

[0007] Furthermore, the high-pressure air pipe runs through the oil storage tank, and the high-pressure air pipe is hollow to form an air transmission channel. Both ends of the high-pressure air pipe extend to the outside of the oil storage tank to form a first joint and a second joint. The first joint is connected to the air transmission device in a docking arrangement, and the second joint is docked with the down-the-hole hammer drill through a lubrication pipe.

[0008] Furthermore, the second joint has a confluence portion, a confluence cavity is formed inside the confluence portion, and the inner end of the confluence cavity is connected to the gas transmission channel; the confluence portion is formed with an oil inlet and a water inlet, the oil pipeline is connected to the confluence cavity through the oil inlet, and the water delivery device is connected to the confluence cavity through the water inlet; the outer end of the confluence portion is connected to the down-the-hole hammer drill through the lubrication pipe.

[0009] Furthermore, the oil pipeline includes an inner tube and an outer tube, the inner tube is located inside the oil storage tank, the inner end of the outer tube is connected to the inner tube, and the outer end of the outer tube is connected to the junction cavity through the oil inlet; the inner tube is arranged longitudinally.

[0010] Furthermore, the internal tube includes an upper tube, a middle tube and a lower tube. From top to bottom, the upper tube, the middle tube and the lower tube are connected and arranged in sequence, the upper tube is connected to the external tube, and the lower part of the lower tube is placed in lubricating oil; the upper tube and the lower tube are arranged longitudinally respectively, the middle tube is arched in an arc shape to form a penetration area, and the high-pressure air pipe passes through the penetration area.

[0011] Furthermore, the external tube includes a first outer tube and a second outer tube, the first outer tube and the second outer tube are connected and arranged, the first outer tube extends upward and is arranged longitudinally, the inner section of the second outer tube is arranged transversely and connected to the first outer tube, and the outer section of the second outer tube extends downward and connects to the high-pressure air pipe.

[0012] Furthermore, the pressure inside the high-pressure air pipe is p1, and the pressure inside the oil storage tank is p2. When p1<p2, a pressure difference Δp is formed between the high-pressure air pipe and the oil storage tank. The oil delivery pipe forms a height h above the liquid surface of the lubricating oil. The calculation formula for the pressure of the lubricating oil is P 油 =P 密 gh,P 油 is the lubricating oil pressure, P 密 is the density of lubricating oil, g = 9.8N / kg; when △p>p 油 When the lubricating oil flows into the interior of the high-pressure air pipe along the oil delivery pipe, mixes with the water and the high-pressure airflow, and is atomized by the impact of the high-pressure airflow.

[0013] Furthermore, the oil storage tank includes a tank body and a base, the lubricating oil is stored inside the tank body, and the tank body and the base are arranged to be butt-jointed up and down; the base includes a bottom plate and a bearing plate, the bearing plate and the bottom plate are arranged to be butt-jointed and fixed up and down, the bottom plate is arranged in a flat shape, and the tank body and the bearing plate are arranged to be butt-jointed and fixed up and down.

[0014] Furthermore, the bearing plate includes at least two plate bodies arranged at intervals and in correspondence, and the plate bodies are fixedly connected to the bottom plate in an upper and lower manner; the plate body includes a bearing portion and two supporting portions, the bearing portion has a downwardly recessed bearing groove, the bearing groove is arranged in an arc shape, and the lower part of the tank body is embedded in the bearing groove; the bearing portion is located between the two supporting portions, and the bearing portion and the two supporting portions are integrally formed, and the supporting portions are arranged in a triangular shape.

[0015] Furthermore, the down-the-hole hammer drill includes a lubrication head and a pneumatic element for drilling, the inner end of the lubrication tube is connected to the second joint, and the outer end of the lubrication tube is connected to the lubrication head, water, lubricating oil and high-pressure air flow are mixed to form a lubricating liquid, and the lubricating liquid is transported to the lubrication head through the lubrication tube. The lubrication head has a lubrication outlet, and the lubricating liquid is transferred to the pneumatic element through the lubrication outlet; the lubrication head has an inner wall facing inward, and the interior is provided with guide strips arranged in a spiral manner, and the spiral pitch of the guide strips gradually decreases from top to bottom.

[0016] Compared with the prior art, the automatic siphon lubrication device provided by the present invention, when the down-the-hole hammer drill is working, the air delivery device is started to deliver high-pressure airflow along the high-pressure air pipe, under the action of the pressure difference, the oil pipe delivers the lubricating oil to the high-pressure air pipe, and the water delivery device also delivers water to the high-pressure air pipe, and the water, lubricating oil and high-pressure airflow are mixed and atomized and then delivered to the down-the-hole hammer drill, which lubricates the pneumatic components of the down-the-hole hammer drill. By utilizing the siphon effect, the lubrication process does not require the setting of a power device. At the same time, by adopting this method, the lubricating particle size is smaller, the follow-up performance is stronger, more lubricating oil mist reaches the pneumatic components, and the lubrication effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a construction schematic diagram of the automatic siphon lubrication device provided by the present invention;

[0018] Figure 2 It is a schematic plan view of the coordination between the oil storage tank, the high-pressure gas pipe and the oil pipeline provided by the present invention;

[0019] Figure 3 It is a plan view of the oil pipeline provided by the present invention;

[0020] Figure 4 is a plan view of another embodiment of the oil pipeline provided by the present invention;

[0021] Figure 5 It is a schematic plan view of the coordination of the oil storage tank and the high-pressure gas pipe provided by the present invention;

[0022] Figure 6 It is a schematic diagram of the matching plane of the docking portion and the fixing ring provided by the present invention;

[0023] Figure 7 is a cross-sectional schematic diagram of the oil guide plate provided by the present invention;

[0024] Figure 8 It is a three-dimensional schematic diagram of the oil storage tank provided by the present invention;

[0025] Fig. 9 is a cross-sectional schematic diagram of a base provided by the present invention;

[0026] Fig.10 It is a partial schematic diagram of the down-the-hole hammer drill provided by the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0029] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] Reference Figure 1-10 The figure shows a preferred embodiment of the present invention.

[0031] The automatic siphon lubrication device includes an oil storage tank 100, a high-pressure air pipe 200 and an oil delivery pipe 300. The oil storage tank 100 stores lubricating oil 500. The inner end of the oil delivery pipe 300 passes through the oil storage tank 100 and is placed in the lubricating oil 500. The outer end of the oil delivery pipe 300 extends to connect with the outer end of the high-pressure air pipe 200. The oil delivery pipe 300 delivers the lubricating oil 500 to the high-pressure air pipe 200 based on the pressure difference; the inner end of the high-pressure air pipe 200 is connected to the air delivery device, which is used to supply high-pressure airflow, and the outer end of the high-pressure air pipe 200 is connected to the water delivery device; water, lubricating oil 500 and high-pressure airflow are mixed and atomized and then delivered to the down-the-hole hammer drill 400.

[0032] In the above-mentioned automatic siphon lubrication device, when the down-the-hole hammer drill 400 is working, the air supply device is started to deliver high-pressure airflow along the high-pressure air pipe 200. Under the action of the pressure difference, the oil pipe 300 delivers the lubricating oil 500 to the high-pressure air pipe 200, and the water supply device also delivers water to the high-pressure air pipe 200. The water, lubricating oil 500 and high-pressure airflow are mixed and atomized and then delivered to the down-the-hole hammer drill 400, which lubricates the pneumatic components of the down-the-hole hammer drill 400. By utilizing the siphon effect, the lubrication process does not require a power device. At the same time, by adopting this method, the lubricating particle size is smaller and the follow-up performance is stronger. More lubricating oil 500 mist reaches the pneumatic components, and the lubrication effect is better.

[0033] The high-pressure air pipe 200 is connected to the air storage tank through an external air pipe, and the air storage tank is connected to the air compressor unit; in this way, the air compressor unit transports the high-pressure airflow to the air storage tank for storage. When the high-pressure airflow is needed, the air storage tank transports the high-pressure airflow to the high-pressure air pipe 200 through the external air pipe until it is transported to the pneumatic components of the down-the-hole hammer drill 400.

[0034] One end of the external water pipe is connected to the water inlet of the high-pressure air pipe 200 through a one-way valve, and the other end of the external water pipe is connected to a water pump and a water bucket. The water pump draws water in the water bucket to the external water pipe, and then transports it to the high-pressure air pipe 200 to mix with the lubricating oil 500 and the high-pressure airflow.

[0035] The high-pressure air pipe 200 passes through the oil storage tank 100. The high-pressure air pipe 200 is hollow to form an air transmission channel. Both ends of the high-pressure air pipe 200 extend to the outside of the oil storage tank 100 to form a first joint and a second joint. The first joint is connected to the air transmission device, and the second joint is connected to the down-the-hole hammer drill 400 through a lubrication pipe. In this way, the high-pressure air pipe 200 and the oil storage tank 100 cooperate better and occupy less space as a whole. At the same time, it helps to reduce the oil transmission path.

[0036] The second joint has a confluence portion, a confluence cavity is formed inside the confluence cavity, and the inner end of the confluence cavity is connected to the gas transmission channel; the confluence portion is formed with an oil inlet and a water inlet, the oil delivery pipe 300 is connected to the confluence cavity through the oil inlet, and the water delivery device is connected to the confluence cavity through the water inlet; the outer end of the confluence portion is connected to the down-the-hole hammer drill 400 through a lubrication pipe, so as to realize mixing and atomization between water, lubricating oil 500 and high-pressure airflow.

[0037] The confluence is arranged in a cone shape, and the diameter of the confluence is gradually reduced in the direction away from the oil storage tank 100. This helps to increase the pressure difference change, facilitates the delivery of lubricating fluid to the pneumatic components, and ensures that sufficient lubricating fluid is delivered to the pneumatic components.

[0038] The confluence portion has an inner end face facing in the direction of the confluence portion, and a guide plate is provided on the inner end face of the confluence portion. The guide plate is arranged in a spiral shape, and the guide plate is arranged in a convex shape away from the confluence portion. In this way, under the action of the guide plate, the lubricating liquid is easily guided and transported. At the same time, the conveying process is spirally transported, which increases the conveying speed and enhances the atomization effect of the lubricating liquid, thereby improving the lubrication effect on the pneumatic components.

[0039] Since the guide plate is arranged in a spiral shape, a pitch is formed on the guide plate, and the pitch gradually decreases in the direction away from the oil storage tank 100, thereby enhancing the mixing effect of water, lubricating oil 500 and high-pressure airflow, facilitating the mixing of water, lubricating oil 500 and high-pressure airflow, and improving the lubrication effect on pneumatic components.

[0040] The oil pipeline 300 includes an inner tube 310 and an outer tube 320. The inner tube 310 is located inside the oil storage tank 100, the inner end of the outer tube 320 is connected to the inner tube 310, and the outer end of the outer tube 320 is connected to the merging cavity through the oil inlet; in this way, the oil delivery path is transported from the inner tube 310 to the external tube 320, and then to the merging cavity.

[0041] The internal pipe 310 is arranged longitudinally to reduce the conveying distance and facilitate the conveying of the lubricating oil 500 .

[0042] The internal tube 310 includes an upper tube 311, a middle tube 312 and a lower tube 313. From top to bottom, the upper tube 311, the middle tube 312 and the lower tube 313 are connected and arranged in sequence. The upper tube 311 is connected to the external tube 320, and the lower part of the lower tube 313 is placed in the lubricating oil 500. The upper tube 311 and the lower tube 313 are arranged longitudinally respectively, and the middle tube 312 is arched in an arc shape to form a penetration area, and the high-pressure air pipe 200 passes through the penetration area; thereby facilitating the installation of the high-pressure air pipe 200.

[0043] The oil pipeline 300 includes a limiting structure, which includes a limiting block and a limiting spring. One end of the limiting spring is fixed, and the other end of the spring is connected to the limiting block. The limiting block and the lower part of the middle pipe 312 are movably arranged. When the high-pressure air pipe 200 passes through the penetration area, the limiting block is raised upward under the elastic force of the spring and resists and limits the high-pressure air pipe 200 from leaving the penetration area, thereby improving the installation stability of the high-pressure air pipe 200.

[0044] When the high-pressure air pipe 200 passes through the penetration area, there is a gap between the top of the high-pressure air pipe 200 and the upper part of the middle pipe 312. In this way, when installing or removing the high-pressure air pipe 200, the high-pressure air pipe 200 is first moved upward to the top of the limiting block, and then moved horizontally to leave the penetration area, thereby facilitating the installation and removal of the high-pressure air pipe 200.

[0045] A limiting groove is formed on the middle tube 312, which is recessed downward and is not connected to the internal oil delivery channel to avoid affecting the oil delivery of the middle tube 312; when installing or disassembling the high-pressure air pipe 200, when the high-pressure air pipe 200 is moved to the top of the limiting block for lateral movement, the high-pressure air pipe 200 applies an extrusion force downward to compress the spring, and the limiting block gradually embeds into the limiting groove, thereby increasing the moving range of the high-pressure air pipe 200, thereby facilitating the installation and disassembly of the high-pressure air pipe 200.

[0046] The external tube 320 includes a first outer tube 321 and a second outer tube 322. The first outer tube 321 and the second outer tube 322 are connected and arranged. The first outer tube 321 extends upward and is arranged longitudinally. The inner section of the second outer tube 322 is arranged transversely to connect with the first outer tube 321, and the outer section of the second outer tube 322 extends downward to connect with the high-pressure air pipe 200. In this way, when oil is transported through the external tube 320, the lubricating oil 500 is first transported upward, then transported transversely for buffering, and then transported downward, which helps to increase the flow rate and flow pressure of the lubricating oil 500 and facilitates the subsequent mixing of the lubricating oil 500 with water and high-pressure airflow.

[0047] A docking portion 330 is formed at the lower portion of the first outer tube 321. The docking portion 330 is arranged longitudinally, and the diameter of the docking portion 330 gradually increases and then gradually decreases from top to bottom. In this way, it is convenient for the lubricating oil 500 to be transported from the inner tube 310 to the docking portion 330, and it is convenient for the lubricating oil 500 in the docking portion 330 to be transported to the first outer tube 321.

[0048] The docking part 330 is arranged in a spherical shape, which facilitates the generation of negative pressure inside the docking part 330 and the transportation of the lubricating oil 500 from the internal tube 310 to the docking part 330; at the same time, it facilitates the docking part 330 to generate an extrusion force to transport the lubricating oil 500 to the first outer tube 321 and then to the second outer tube 322.

[0049] A first oil valve is provided between the first outer tube 321 and the second outer tube 322 to control the flow rate of the lubricating oil 500 .

[0050] A second oil valve is provided between the second outer tube 322 and the high-pressure air pipe 200 to control the flow rate of the lubricating oil 500 .

[0051] Another embodiment of the oil pipeline 300: The oil pipeline 300 includes two inner tubes 310, which are arranged symmetrically, and a penetration area is formed between the middle tubes 312 of the two inner tubes 310. The two inner tubes 310 clamp the high-pressure gas pipe 200; in this way, under the action of the two inner tubes 310, the installation stability of the high-pressure gas pipe 200 is enhanced.

[0052] The upper parts of the two built-in tubes 310 are arranged to be butted and joined, and are connected to the butt joint 330 , which helps to enhance the flow pressure and flow velocity of the lubricating oil 500 and helps to enhance the subsequent mixing with water and high-pressure airflow.

[0053] The docking portion 330 is arranged in a spherical shape, and the lower portion of the docking portion 330 forms a lower cut surface, which is arranged horizontally, and the upper portion of the docking portion 330 forms an upper cut surface, which is arranged horizontally, and the upper cut surface and the lower cut surface are arranged correspondingly up and down; along the direction from the upper cut surface to the lower cut surface, the caliber is gradually increased and then gradually decreased; in this way, it is convenient for the lubricating oil 500 to be transported from the built-in tube 310 to the docking portion 330, and at the same time, it is convenient for the lubricating oil 500 in the docking portion 330 to be transported to the first outer tube 321.

[0054] The first outer tube 321 includes a boosting section 340, the lower portion of the boosting section 340 is connected to the upper portion of the docking portion 330, and the upper portion of the boosting section 340 is longitudinally extended upward; the upper portion of the boosting section 340 forms a boosting portion, which is small at the top and large at the bottom; the lubricating oil 500 is transported from bottom to top, and under the action of the boosting portion, the delivery pressure and flow rate of the lubricating oil 500 are effectively enhanced, which facilitates the delivery of the lubricating oil 500 and the subsequent mixing of the lubricating oil 500 with the high-pressure airflow.

[0055] The boosting part has an inner end surface facing inward, and the inner end surface of the boosting part is provided with a plurality of boosting strips, and the boosting strips are arranged in a spiral shape from the outside to the inside along the bottom-up direction; in this way, under the action of each boosting strip, when the lubricating oil 500 is conveyed, the lubricating oil 500 passes through the boosting part and is conveyed in a spiral shape, thereby enhancing the conveying flow rate and conveying pressure, and improving the subsequent mixing effect of the lubricating oil 500 and the high-pressure airflow.

[0056] The second outer tube 322 includes a transverse tube and a longitudinal tube.

[0057] A flared portion is formed at the upper portion of the longitudinal tube, and the outer end of the transverse tube is connected to the flared portion in a butt connection arrangement; along the direction from the transverse tube to the longitudinal tube, the flared portion is arranged in a cone shape with a larger top and a smaller bottom; under the action of the flared portion, the conveying flow rate and conveying pressure are enhanced, thereby improving the mixing effect of the subsequent lubricating oil 500 and the high-pressure airflow.

[0058] The flared portion is arched outward in an arc shape, which plays a buffering role, facilitating the transfer of the lubricating oil 500 from the transverse tube to the longitudinal tube. At the same time, it increases the flow path of the lubricating oil 500, enhances the delivery flow rate and delivery pressure, and improves the subsequent mixing effect of the lubricating oil 500 and the high-pressure airflow.

[0059] The upper parts of the two built-in tubes 310 are butt-joined to form a collection portion, and the collection portion is butt-joined and connected with the butt portion 330; in this way, the two built-in tubes 310 respectively transport the lubricating oil 500, which helps to enhance the flow pressure and flow velocity of the lubricating oil 500 and enhance the subsequent mixing of the lubricating oil 500 and the high-pressure airflow.

[0060] The collection portion includes a first channel 314 and a second channel 315, and the first channel 314 and the second channel 315 are connected and arranged; the first channel 314 and the second channel 315 are arranged in a spiral staggered manner; when oil is transported, the lubricating oil 500 is transported to the first channel 314 and the second channel 315 through two internal tubes 310, and the lubricating oil 500 is spirally converged and then transported to the external tube 320; in this way, the lubricating oil 500 is spirally transported after passing through the collection portion, thereby enhancing the transport flow rate and transport pressure, and improving the subsequent mixing effect of the lubricating oil 500 and the high-pressure airflow.

[0061] A siphon member 350 is formed at the lower part of the inner tube 310 , and the siphon member 350 is arranged in a conical shape with a small top and a large bottom; the siphon member 350 is immersed in the lubricating oil 500 , so that the lubricating oil 500 can easily enter the inner tube 310 under the action of the siphon member 350 .

[0062] The two built-in tubes 310 are respectively provided with a first oil valve, so that the two built-in tubes 310 can be controlled to synchronously deliver the lubricating oil 500, or a single built-in tube 310 can deliver the lubricating oil 500 to meet different lubrication requirements.

[0063] The working principle of the automatic siphon lubrication device provided by the present invention is as follows:

[0064] By utilizing the pressure difference between the inside and outside of the high-pressure air pipe 200, the lubricating oil 500 flows from the oil storage tank 100 to the high-pressure air pipe 200 due to the siphon effect, and is then atomized by the high-speed airflow and transported to the down-the-hole hammer impactor for lubrication.

[0065] The pressure inside the high-pressure gas pipe 200 is p1, and the pressure inside the oil storage tank 100 is p2. When p1<p2, a pressure difference △p is formed between the high-pressure gas pipe 200 and the oil storage tank 100; the oil delivery pipe 300 forms a height h above the liquid surface of the lubricating oil 500. The pressure calculation formula of the lubricating oil 500 is P 油 =P 密 gh,P 油 is the pressure of lubricating oil 500, P 密 is the density of lubricating oil 500, g = 9.8N / kg; when △p>p 油 When the lubricating oil 500 flows into the interior of the high-pressure air pipe 200 along the oil delivery pipe 300, mixes with the water and the high-pressure airflow, and is atomized by the impact of the high-pressure airflow.

[0066] When the oil delivery pipe 300 is filled with lubricating oil 500, the liquid pressure formed inside the oil delivery pipe 300 is P 油 =P 密 gh. When △p>p 油 When the lubricating oil 500 in the oil storage chamber flows along the internal tube 310 of the oil delivery pipe 300 to the external tube 320, and then enters the high-pressure air pipe 200 to be atomized, thereby forming an oil delivery path.

[0067] Embodiment of oil storage tank 100:

[0068] The oil storage tank 100 includes a tank body 110 and a base 120 . The lubricating oil 500 is stored inside the tank body 110 . The tank body 110 and the base 120 are arranged in a vertically connected manner. The base 120 supports the tank body 110 and improves the stability of the tank body 110 .

[0069] The base 120 includes a bottom plate 121 and a supporting plate 122. The supporting plate 122 and the bottom plate 121 are fixedly connected in an up-and-down manner. The bottom plate 121 is arranged in a flat shape. The tank body 110 and the supporting plate 122 are fixedly connected in an up-and-down manner. The supporting plate 122 supports and fixes the tank body 110, and the bottom plate 121 increases the contact area with the ground and improves stability.

[0070] In addition, under the action of the base 120 , the tank body 110 is suspended to prevent the tank body 110 from being soaked and affecting the quality of the lubricating oil 500 .

[0071] At the same time, the tank body 110 is arranged in a cylindrical shape, which is convenient for storing the lubricating oil 500 , and under the action of the base 120 , the tank body 110 is prevented from rolling, thereby improving the installation stability of the tank body 110 .

[0072] The bearing plate 122 includes at least two plates arranged at intervals and in correspondence, and the plates are fixedly connected to the bottom plate 121 in an upper and lower manner; the plate includes a bearing portion and two supporting portions 124, and the bearing portion has a downwardly concave bearing groove 123, and the bearing groove 123 is arranged in an arc shape, and the lower part of the tank body 110 is embedded in the bearing groove 123; the matching effect between the tank body 110 and the bearing portion is improved, and at the same time, the bearing groove 123 helps to limit the rolling of the tank body 110 and improve the stability of the tank body 110.

[0073] The bearing portion is located between the two supporting portions 124 , and the bearing portion and the two supporting portions 124 are integrally formed, and the supporting portions 124 are arranged in a triangular shape; under the action of the supporting portions 124 , the pressure bearing capacity of the supporting portions 124 is enhanced, thereby improving the stability of the bearing portion.

[0074] The support portion 124 has an outwardly extending edge, on which rolling wheels are provided. Thus, when the construction is completed or the equipment is brought into the site, the oil storage tank 100 is tilted toward the rolling wheels so that the rolling wheels touch the ground and the tank body 110 and the base 120 are suspended, which facilitates the transfer of the oil storage tank 100 and the bringing in and withdrawal of the equipment.

[0075] The supporting parts 124 of the two plates are respectively provided with rolling wheels, and the two rolling wheels are arranged in parallel and correspondingly, so that the two rolling wheels contact the ground synchronously, thereby enhancing the stability of the transfer of the oil storage tank 100.

[0076] The oil storage tank 100 has an oil storage cavity, and the oil storage cavity stores lubricating oil 500; the oil storage tank 100 has an installation groove, and the high-pressure air pipe 200 passes through the oil storage tank 100 through the installation groove, and the oil storage cavity and the installation groove are not connected. The high-pressure air pipe 200 has an air pipe wall, and the installation groove has a groove wall, and the groove wall surrounds and contacts the air pipe wall.

[0077] The lubricating oil 500 is stored through the oil storage cavity of the oil storage tank 100, which facilitates the transfer and supply of the lubricating oil 500; the high-pressure air pipe 200 passes through the oil storage tank 100 through the installation groove, and the installation of the high-pressure air pipe 200 is ensured under the cooperation of the groove wall and the air pipe wall. At the same time, the high-pressure air pipe 200 is prevented from affecting the storage of the lubricating oil 500. In addition, the high-pressure air pipe 200 is arranged in this way, and the oil is transported only through a thin short pipe, without the need for an additional long pipeline, thereby shortening the oil transportation path and facilitating the transportation of the lubricating oil 500.

[0078] The installation groove runs through both ends of the oil storage tank 100 to form a first installation opening and a second installation opening; a first reinforcement column 130 and a second reinforcement column 140 are provided at both ends of the oil storage tank 100, the first reinforcement column 130 is arranged corresponding to the first installation opening, and the second reinforcement column 140 is arranged corresponding to the second installation opening; the first reinforcement column 130 and the second reinforcement column 140 are respectively sleeved with a high-pressure air pipe 200; in this way, under the action of the first reinforcement column 130 and the second reinforcement, the support area of ​​the high-pressure air pipe 200 is increased, and the installation stability of the high-pressure air pipe 200 is enhanced.

[0079] Furthermore, the first reinforcement column 130 has a first internal thread, the second reinforcement column 140 has a second internal thread, and the outer end surface of the high-pressure air pipe 200 forms a first external thread 210 and a second external thread 220; this facilitates the coordinated installation of the high-pressure air pipe 200 with the first reinforcement column 130 and the second reinforcement column 140.

[0080] The high-pressure air pipe 200 has a stop plate protruding outward, and the stop plate is arranged corresponding to the second external thread 220. When the stop plate conflicts with the oil storage tank 100, the first internal thread and the first external thread 210 are arranged in a threaded connection, and the second internal thread and the second external thread 220 are arranged in a threaded connection; in this way, when the stop plate conflicts with the oil storage tank 100, the stop plate limits the high-pressure air pipe 200 from continuing to rotate. At this time, the first internal thread and the first external thread 210 are exactly matched and connected, and the second internal thread and the second external thread 220 are exactly matched and connected; in this way, the connection accuracy of the high-pressure air pipe 200 and the oil storage tank 100 is facilitated.

[0081] The oil storage tank 100 has an oil outlet, and the oil pipeline 300 is connected to the oil storage cavity through the oil outlet; the oil storage tank 100 is provided with a fixing ring 180, and the fixing ring 180 is arranged in a cone shape with a large top and a small bottom; the oil pipeline 300 includes a docking portion 330, and when the oil pipeline 300 is installed on the oil storage tank 100, the fixing ring 180 is arranged to surround and abut against the docking portion 330; in this way, the fixing ring 180 facilitates the installation of the oil pipeline 300, and at the same time, the fixing ring 180 supports and reinforces the oil pipeline 300, thereby enhancing the installation stability of the oil pipeline 300.

[0082] The docking portion 330 is arranged longitudinally, and the diameter of the docking portion 330 gradually increases and then gradually decreases from top to bottom, so as to facilitate the transportation of the lubricating oil 500 from the oil storage tank 100 to the docking portion 330, and facilitate the transportation of the lubricating oil 500 in the docking portion 330 to the outside.

[0083] The fixing ring 180 surrounds and contacts the lower part of the docking portion 330 ; the fixing ring 180 supports and reinforces the docking portion 330 in all directions.

[0084] The oil storage tank 100 has a refueling port 150, which is opened or closed by an oil cap 160; the oil storage tank 100 is provided with an oil guide plate 170, and the oil guide plate 170 has an oil guide channel 179, the upper part of the oil guide channel 179 is connected to the refueling port 150, and the lower part of the oil guide channel 179 is connected to the oil storage chamber; under the action of the oil guide plate 170, it is convenient to refuel the oil storage tank 100.

[0085] Furthermore, the upper portion of the oil guide channel 179 is arranged in a flared shape, which increases the access range of the refueling port 150 and facilitates refueling of the oil storage tank 100.

[0086] The oil guide plate 170 includes a first plate body and a second plate body, the first plate body and the second plate body are arranged in a corresponding manner at intervals, and an oil guide channel 179 is formed between the first plate body and the second plate body; the first plate body includes a first transverse section 171, a first transition section 172 and a first longitudinal section 173, the two ends of the first transition section 172 are respectively connected to the first transverse section 171 and the first longitudinal section 173, the first transverse section 171 is horizontally extended, and the first longitudinal section 173 is extended toward the inside of the oil storage cavity; the second plate body includes a second transverse section 175, a second transition section 176 and a second longitudinal section 177, the two ends of the second transition section 176 are respectively connected to the second transverse section 175 and the second longitudinal section 177, the second transverse section 175 is horizontally extended, and the second longitudinal section 177 is extended toward the inside of the oil storage cavity; the diversion of the lubricating oil 500 is realized, so as to facilitate the refueling of the oil storage tank 100.

[0087] The oil storage tank 100 has a top tank wall 111, which forms a refueling port 150; the top tank wall 111 and the first transverse section 171 are arranged in a vertically flat butt joint arrangement, and the top tank wall 111 and the second transverse section 175 are arranged in a vertically flat butt joint arrangement; this helps to guide the oil and reduce the leakage of the lubricating oil 500.

[0088] A first sealing layer is provided between the top tank wall 111 and the first transverse section 171 , and a second sealing layer is provided between the top tank wall 111 and the second transverse section 175 , so that leakage of the lubricating oil 500 is avoided when refueling.

[0089] The oil guide channel 179 and the high-pressure air pipe 200 are arranged in correspondence with each other up and down; the upper end of the first longitudinal section 173 is connected to the first transition section 172, and the lower end of the first longitudinal section 173 is extended in an arc shape in a direction away from the second longitudinal section 177 to form a first extension section 174; the upper end of the second longitudinal section 177 is connected to the second transition section 176, and the lower end of the second longitudinal section 177 is extended in an arc shape in a direction away from the first longitudinal section 173 to form a second extension section 178; the first extension section 174, the high-pressure air pipe 200 and the second extension section 178 are arranged in an up-down staggered manner; in this way, it is convenient for the lubricating oil 500 to enter the oil storage chamber, and at the same time, it is avoided that the lubricating oil 500 is directly transported to the high-pressure air pipe 200, resulting in a large splash of the lubricating oil 500 when refueling.

[0090] Embodiment of down-the-hole hammer drill 400:

[0091] The down-the-hole hammer drill 400 includes a lubrication head 410 and a pneumatic element for drilling, and construction drilling is achieved through the pneumatic element; the inner end of the lubrication tube is connected to the second joint, and the outer end of the lubrication tube is connected to the lubrication head 410, and water, lubricating oil 500 and high-pressure air flow are mixed to form a lubricating liquid, which is transported to the lubrication head 410 through the lubrication tube. The lubrication head 410 has a lubrication outlet, and the lubricating liquid is transferred to the pneumatic element through the lubrication outlet; in this way, the lubricating liquid is transported to the pneumatic element, which has a lubricating effect on the pneumatic element.

[0092] The lubrication head 410 has an inner wall facing inwards, and the inner wall is provided with guide strips 420 arranged in a spiral shape. The spiral pitch of the guide strips 420 gradually decreases from top to bottom. Under the action of the guide strips 420, the lubricating liquid is easily guided, and at the same time, the lubricating liquid is spirally transported to the pneumatic components, thereby increasing the delivery range of the lubricating liquid and improving the delivery uniformity, thereby ensuring the lubricating effect of the lubricating liquid.

[0093] The lubrication head 410 is arranged in a cone shape with a small top and a large bottom, so that the lubrication head 410 is easily connected to the pneumatic component.

[0094] The lubrication head 410 is arranged around the circumference of the pneumatic component. In this way, the lubricating liquid is supplied around the circumference of the pneumatic component through the guide strip 420 of the lubrication head 410, thereby increasing the delivery range of the lubricating liquid and improving the delivery uniformity, thereby ensuring the lubricating effect of the lubricating liquid.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Automatic siphon lubrication device, characterized in that: It comprises an oil storage tank, a high-pressure air pipe and an oil delivery pipe, wherein the oil storage tank stores lubricating oil, the inner end of the oil delivery pipe passes through the oil storage tank and is placed in the lubricating oil, the outer end of the oil delivery pipe extends to connect with the outer end of the high-pressure air pipe, and the oil delivery pipe delivers the lubricating oil to the high-pressure air pipe based on the pressure difference; the inner end of the high-pressure air pipe connects with the air delivery device, and the air delivery device is used to supply high-pressure airflow, and the outer end of the high-pressure air pipe connects with the water delivery device; Water, lubricating oil and high-pressure airflow are mixed and atomized and then transported to the down-the-hole hammer drill; The high-pressure air pipe runs through the oil storage tank, the high-pressure air pipe is hollow to form an air transmission channel, both ends of the high-pressure air pipe extend to the outside of the oil storage tank to form a first joint and a second joint, the first joint is connected to the air transmission device in a butt connection arrangement, and the second joint is connected to the down-the-hole hammer drill through a lubrication pipe; The second joint has a confluence portion, a confluence cavity is formed inside the confluence portion, and the inner end of the confluence cavity is connected to the gas transmission channel; the confluence portion is formed with an oil inlet and a water inlet, the oil delivery pipe is connected to the confluence cavity through the oil inlet, and the water delivery device is connected to the confluence cavity through the water inlet; the outer end of the confluence portion is connected to the down-the-hole hammer drill through the lubrication pipe; The confluence portion is arranged in a conical shape, and the diameter of the confluence portion is gradually reduced in the direction away from the oil storage tank; the confluence portion has an inner end surface facing inward, and the inner end surface of the confluence portion is provided with a guide plate, the guide plate is arranged in a spiral shape, and the guide plate is arranged in a convex manner in the direction away from the confluence portion; The oil delivery pipe includes an inner pipe and an outer pipe, the inner pipe is located inside the oil storage tank, the inner end of the outer pipe is connected to the inner pipe, and the outer end of the outer pipe is connected to the merging cavity through the oil inlet; the inner pipe is arranged longitudinally; The internal tube comprises an upper tube, a middle tube and a lower tube. From top to bottom, the upper tube, the middle tube and the lower tube are connected and arranged in sequence, the upper tube is connected and arranged with the external tube, and the lower part of the lower tube is placed in lubricating oil; the upper tube and the lower tube are arranged longitudinally respectively, the middle tube is arched and arranged in an arc shape to form a penetration area, and the high-pressure air pipe runs through the penetration area; The external tube includes a first outer tube and a second outer tube, the first outer tube and the second outer tube are connected and arranged, the first outer tube extends upward and is arranged longitudinally, the inner section of the second outer tube is arranged transversely and connected to the first outer tube, and the outer section of the second outer tube extends downward and is connected to the high-pressure air pipe.

2. The automatic siphon lubrication device according to claim 1, characterized in that: The pressure inside the high-pressure air pipe is , the pressure inside the oil storage tank is ,when , a pressure difference is formed between the high pressure gas pipe and the oil storage tank The oil pipe forms a height h above the liquid surface of the lubricating oil, and the formula for calculating the pressure of the lubricating oil is p 油 =P 密 gh,p 油 is the lubricating oil pressure, P 密 is the density of the lubricating oil, ;when When the lubricating oil flows into the interior of the high-pressure air pipe along the oil delivery pipe, mixes with the water and the high-pressure airflow, and is atomized by the impact of the high-pressure airflow.

3. The automatic siphon lubrication device according to claim 1, characterized in that: The oil storage tank includes a tank body and a base, the lubricating oil is stored inside the tank body, and the tank body and the base are arranged to be butt-jointed up and down; the base includes a bottom plate and a bearing plate, the bearing plate and the bottom plate are arranged to be butt-jointed and fixed up and down, the bottom plate is arranged in a flat shape, and the tank body and the bearing plate are arranged to be butt-jointed and fixed up and down.

4. The automatic siphon lubrication device according to claim 3, characterized in that: The bearing plate includes at least two plate bodies arranged at intervals and in correspondence, and the plate bodies are fixedly connected with the bottom plate in an upper and lower manner; the plate body includes a bearing portion and two supporting portions, and the bearing portion has a bearing groove recessed downward, and the bearing groove is arranged in an arc shape, and the lower part of the tank body is embedded in the bearing groove; the bearing portion is located between the two supporting portions, and the bearing portion and the two supporting portions are integrally formed, and the supporting portions are arranged in a triangular shape.

5. The automatic siphon lubrication device according to claim 1, characterized in that: The down-the-hole hammer drill comprises a lubrication head and a pneumatic element for drilling, the inner end of the lubrication tube is butt-jointed with the second joint, the outer end of the lubrication tube is butt-jointed with the lubrication head, water, lubricating oil and high-pressure air flow are mixed to form a lubricating liquid, the lubricating liquid is transported to the lubrication head through the lubrication tube, the lubrication head has a lubrication outlet, the lubricating liquid is transferred to the pneumatic element through the lubrication outlet; the lubrication head has an inner wall facing inwards, the inner wall is provided with guide strips arranged in a spiral, and the spiral pitch of the guide strips gradually decreases from top to bottom.

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