Drill rod lubricating oil injection mechanism

Abstract

The utility model discloses a drill rod lubricating oil injection mechanism, comprising: a fixed frame; a swinging part, rotatably connected to the fixed frame, an oil injection part is provided at the free end of the swinging part, the oil injection part is provided with an oil injection cavity for storing lubricating grease, and an oil outlet is provided on one side of the oil injection cavity; a driving part, connected to the swinging part, and used to drive the swinging part to rotate; an extrusion part, elastically slidingly arranged in the oil injection cavity, and the extrusion part at least partially extends out of the oil injection part under normal conditions, and the extrusion part is configured as follows: in the process of the swinging part rotating toward the drill rod, the extrusion part can abut against the drill rod and slide toward the oil injection cavity under the push of the drill rod, so as to squeeze the lubricating grease in the oil injection cavity from the oil outlet to the outer wall of the drill rod. The drill rod lubricating oil injection mechanism of the utility model embodiment has a simple structure and can realize automatic and efficient oil injection.

Description

Technical Field

[0001] The utility model relates to the technical field of drill rod lubrication devices, in particular to a drill rod lubricating oil injection mechanism. Background Art

[0002] At present, some related equipment on the market do not have the function of adding lubricating grease when connecting rods. When connecting rods, lubricating grease is applied manually regularly. This method affects the efficiency of connecting rods and the service life of drill rods. The mechanisms with the function of oiling the connecting rods often have problems such as complex structure or low oiling efficiency. Therefore, there is an urgent need for an automatic lubricating oil injection mechanism with a simple structure and high oiling efficiency. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a drill rod lubricating oil injection mechanism, which has a simple structure and can realize automatic and efficient oil injection.

[0004] The drill rod lubricating oil injection mechanism according to the embodiment of the utility model comprises:

[0005] Fixed frame;

[0006] A swinging part is rotatably connected to the fixing frame, and an oil filling part is provided at the free end of the swinging part, and the oil filling part is provided with an oil filling cavity for storing lubricating grease, and an oil outlet is provided at one side of the oil filling cavity;

[0007] A driving part, connected to the swing part, and used for driving the swing part to rotate;

[0008] The extrusion portion is elastically slidably arranged in the oil injection cavity, and the extrusion portion at least partially extends out of the oil injection portion under normal conditions. The extrusion portion is configured as follows: when the swing portion rotates toward the drill rod, the extrusion portion can abut against the drill rod and slide toward the oil injection cavity under the push of the drill rod, so as to squeeze the lubricating grease in the oil injection cavity from the oil outlet to the outer wall of the drill rod.

[0009] The drill rod lubricating oil injection mechanism according to the embodiment of the utility model has at least the following beneficial effects:

[0010] When lubricating the drill rod, the driving unit drives the swinging unit to rotate toward the drill rod. After the swinging unit rotates a certain angle, the extrusion unit abuts against the outer wall of the drill rod. When the rotation continues, the drill rod will push the extrusion unit to retract into the oil filling chamber, thereby squeezing the space occupied by the lubricating grease in the oil filling chamber, so that the lubricating grease flows out from the oil outlet to the outer wall of the drill rod, so as to realize automatic oil filling and lubrication of the drill rod. After the oil filling, the driving unit drives the swinging unit to rotate away from the drill rod for avoidance. After no external force is applied, the extrusion unit elastically returns to its original position. The drill rod lubricating oil filling mechanism with the above-mentioned structure only needs to drive the swinging unit to swing to realize automatic oil filling and lubrication of the drill rod, and the structure is simple and the oil filling efficiency is high.

[0011] According to some embodiments of the utility model, an oil delivery device is further included, the oil delivery device includes an oil delivery pipe, the oil filling portion is provided with an oil inlet connected to the oil filling chamber, one end of the oil delivery pipe is connected to the oil inlet for delivering lubricating grease to the oil filling chamber.

[0012] According to some embodiments of the utility model, a one-way valve is provided on the oil delivery pipe, and the one-way valve is configured to allow the lubricating grease in the oil delivery pipe to flow unidirectionally to the oil injection chamber.

[0013] According to some embodiments of the present invention, a spring is provided in the oil injection cavity, and the spring is used to apply an elastic force to the extrusion portion to keep the extrusion portion at least partially extending out of the oil injection portion under normal conditions.

[0014] According to some embodiments of the utility model, a through groove running through the oil injection portion is provided on one side of the oil injection chamber, and the extrusion portion includes a sliding block and an abutment block fixedly connected thereto, the sliding block is located in the oil injection chamber and slidably cooperates with the oil injection chamber, and the sliding block can abut against the side wall of the oil injection chamber during sliding to limit the sliding block within the oil injection chamber, the abutment block is penetrated through the through groove and slidably cooperates with the through groove, and the abutment block is used to abut against the drill rod.

[0015] According to some embodiments of the utility model, the oil filling portion includes a base and a cover plate, the base is provided with a concave cavity with an opening on one side, the oil outlet and the opening side of the concave cavity are respectively located on opposite sides of the base, and the cover plate is detachably covered on the opening side of the concave cavity to form the oil filling cavity, wherein when the cover plate is opened, the extrusion portion and the spring can be taken out from the opening side of the concave cavity.

[0016] According to some embodiments of the utility model, the spring is a compression spring, a recessed groove is provided on the inner side of the cover plate, a guide column is provided on the side of the extrusion portion facing the cover plate, one end of the spring is embedded in the recessed groove, and the other end is sleeved on the guide column.

[0017] According to some embodiments of the present invention, the cover plate is connected to the base body by screws.

[0018] According to some embodiments of the utility model, an arcuate abutting surface is provided on one side of the oil filling portion for abutting against the drill rod, the oil outlet is provided on the arcuate abutting surface, and the extrusion portion partially protrudes from the arcuate abutting surface under normal conditions.

[0019] According to some embodiments of the present utility model, the driving part includes a cylinder, a fixed end of the cylinder is hinged to one of the fixed frame and the swing part, and a telescopic end of the cylinder is hinged to the other.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic diagram of the state of the drill rod when lubricating it with oil according to the embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the state when the drill rod is avoided in the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the internal structure of the oil filling part of an embodiment of the utility model;

[0025] Figure 4 It is a schematic structural diagram of the oil injection part of the embodiment of the utility model when the extrusion part abuts against the drill rod;

[0026] Figure 5 It is a schematic diagram of the structural decomposition of the oil filling part of an embodiment of the utility model.

[0027] Figure Number:

[0028] A fixing frame 100;

[0029] The swinging part 200, the oil filling part 210, the oil filling chamber 211, the oil outlet 212, the oil inlet 213, the base 214, the cover plate 215, the sink 216, the arc-shaped abutting surface 217, and the spring 220;

[0030] Driving unit 300;

[0031] Extrusion portion 400, sliding block 410, via hole 411, abutment block 420, guide column 430;

[0032] Drill rod 500;

[0033] Oil pipeline 600. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Some of the related equipment on the market currently do not have a function of adding lubricating grease when connecting rods. When connecting rods, lubricating grease is applied to the drill rod 500 manually and regularly. This method affects the connecting rod efficiency and the service life of the drill rod 500. The mechanisms with the connecting rod oiling function often have problems such as complex structure or low oiling efficiency.

[0039] To this end, the utility model provides a drill rod lubricating oil injection mechanism, which can effectively solve the problems existing in the prior art.

[0040] Reference below Figures 1 to 5 The lubricating oil injection mechanism for a drill rod according to an embodiment of the utility model is described.

[0041] A drill rod lubricating oil injection mechanism according to an embodiment of the utility model includes: a fixing frame 100, a swinging part 200, a driving part 300, and an extruding part 400.

[0042] The fixing frame 100 is fixed on a drill rod storage for storing drill rods 500 .

[0043] The swinging part 200 is rotatably connected to the fixing frame 100, and an oil filling part 210 is provided at the free end of the swinging part 200. The oil filling part 210 is provided with an oil filling cavity 211 for storing lubricating grease, and an oil outlet 212 is provided on one side of the oil filling cavity 211. It should be noted that the lubricating grease has a certain viscosity and generally will not flow out from the oil outlet 212 on its own in the absence of external force.

[0044] The driving part 300 is connected to the swing part 200 , and the driving part 300 is used to drive the swing part 200 to rotate. Specifically, the driving part 300 is used to drive the swing part 200 to swing within a certain angle range.

[0045] The extrusion part 400 is elastically slidably arranged in the oil filling chamber 211, and the extrusion part 400 at least partially extends out of the oil filling chamber 210 under normal conditions. The extrusion part 400 can elastically slide toward the oil filling chamber 211 under the action of external force, and can elastically return to its original position after the external force is removed. Specifically, the extrusion part 400 is configured as follows: when the swing part 200 rotates toward the drill rod 500, the extrusion part 400 can abut against the drill rod 500 and slide toward the oil filling chamber 211 under the push of the drill rod 500, so as to squeeze the lubricating grease in the oil filling chamber 211 from the oil outlet 212 to the outer wall of the drill rod 500. The specific extrusion principle is as follows: when the extrusion part 400 slides toward the oil filling chamber 211, the extrusion part 400 will squeeze the space occupied by the lubricating grease in the oil filling chamber 211, so that the space occupied by the lubricating grease becomes less, and the lubricating grease will be discharged from the oil outlet 212. Obviously, when the swing part 200 rotates, the oil outlet 212 is located on the side of the swing part 200 rotation path close to the drill rod 500, and the extrusion part 400 extends out of the oil injection part 210 from the side of the swing part 200 rotation path close to the drill rod 500.

[0046] When lubricating the drill rod 500, the driving part 300 drives the swing part 200 to rotate toward the drill rod 500. After the swing part 200 rotates a certain angle, the extrusion part 400 abuts against the outer wall of the drill rod 500. When the rotation continues, the drill rod 500 pushes the extrusion part 400 to retract into the oil filling chamber 211, thereby squeezing the space occupied by the lubricating grease in the oil filling chamber 211, so that the lubricating grease flows out from the oil outlet 212 to the outer wall of the drill rod 500, so as to realize automatic oil filling and lubrication of the drill rod 500. After the oil injection is completed, the driving part 300 drives the swing part 200 to rotate away from the drill rod 500 for avoidance. After there is no external force, the extrusion part 400 elastically returns to its original position. The drill rod lubricating oil injection mechanism with the above structure only needs to drive the swing part 200 to swing by the driving part 300 to realize automatic oil injection and lubrication of the drill rod 500. The structure is simple and the oil injection efficiency is high. It not only effectively solves the problem of oil injection and lubrication of the drill rod 500, but also can greatly shorten the rod connection time and increase the drilling efficiency.

[0047] Reference Figures 1 to 3As shown, in some embodiments of the utility model, the drill rod lubricating oil injection mechanism of the utility model embodiment also includes an oil delivery device, the oil delivery device includes an oil pump and an oil delivery pipe 600 connected to the oil pump, the oil injection portion 210 is provided with an oil inlet 213 connected to the oil injection chamber 211, and the end of the oil delivery pipe 600 away from the oil pump is connected to the oil inlet 213 for delivering lubricating grease to the oil injection chamber 211, wherein the oil inlet 213 is provided with an internal thread for threaded connection with the pipe joint of the oil delivery pipe 600. It can be imagined that, in the case of not setting up an oil delivery device, there are two ways to realize multiple oil injection and lubrication of the drill rod 500. One is to make the oil injection chamber 211 very large and fill it with lubricating grease. Each time the drill rod 500 is injected with oil and lubricated, the swing amplitude of the swing part 200 is increased, so as to ensure that the lubricating grease can be squeezed out each time. However, this method has a bloated structure and is difficult to control, and will cause the oil outlet 212 to be too far away from the drill rod 500 during the early stage of oil injection, thereby reducing the oil injection effect. The other is that the oil injection chamber 211 is slightly smaller in volume, and after oil injection and lubrication once, the lubricating grease is manually added to the oil injection chamber 211, but this method is too cumbersome to operate. In this embodiment, an oil delivery device is set. After completing the oil injection and lubrication of the drill rod 500 once, the lubricating grease is added to the oil injection chamber 211 through the oil delivery device. In this way, not only can the oil injection chamber 211 be made smaller to make the structure compact, but also the swing amplitude of the swing part 200 does not need to be changed, which is convenient for control. When lubricating the drill rod 500, first fill the oil filling chamber 211 with lubricating grease through the oil delivery device, and then drive the swing part 200 to rotate toward the drill rod 500 through the driving part 300, so that the drill rod 500 pushes the extrusion part 400 to retract into the oil filling chamber 211, so that the lubricating grease flows out from the oil outlet 212 to the outer wall of the drill rod 500. After the oil filling is completed, the driving part 300 drives the swing part 200 to rotate away from the drill rod 500 for avoidance. After there is no external force, the extrusion part 400 elastically returns to its original position, and at the same time, the lubricating grease is replenished into the oil filling chamber 211 through the oil delivery device to wait for the next oil filling and lubrication.

[0048] In some specific embodiments of the present invention, a one-way valve is provided on the oil pipe 600, and the one-way valve is configured to allow the lubricating grease in the oil pipe 600 to flow unidirectionally to the oil filling chamber 211. With this arrangement, when the extrusion portion 400 slides toward the oil filling chamber 211, the lubricating grease will flow out from the oil outlet 212, and will not flow back from the oil inlet 213 to the oil pipe 600, thereby ensuring the extrusion effect of the lubricating grease.

[0049] Reference Figures 3 to 5As shown, in some embodiments of the utility model, a spring 220 is provided in the oil injection chamber 211, and the spring 220 is used to apply an elastic force to the extrusion portion 400 to keep the extrusion portion 400 at least partially extended out of the oil injection portion 210 under normal conditions. When the extrusion portion 400 receives an external force opposite to the elastic force of the spring 220, it can elastically slide toward the oil injection chamber 211, that is, the spring 220 acts on the extrusion portion 400 to enable the extrusion portion 400 to slide elastically, and the structure is simple and practical.

[0050] Reference Figures 3 to 5 As shown, in some embodiments of the present invention, a groove (not shown) penetrating the oil filling portion 210 is provided on one side of the oil filling chamber 211, and the groove and the oil outlet 212 are both located on the same side of the oil filling chamber 211. The extrusion portion 400 includes a sliding block 410 and an abutment block 420 that are fixedly connected. The sliding block 410 is located in the oil filling chamber 211 and slides with the oil filling chamber 211. During the sliding process of the sliding block 410, it can abut against the side wall of the oil filling chamber 211 to limit the sliding block 410 in the oil filling chamber 211. The abutment block 420 is penetrated by the groove and slides with the groove. The abutment block 420 is used to abut against the drill rod 500. Obviously, the cross-section of the abutment block 420 matches the cross-section size of the slot. Specifically, in the present embodiment, two abutment blocks 420 are provided, which are fixed at intervals on the same side of the sliding block 410. A door-type structure is formed between the two abutment blocks 420 and the sliding block 410. The slot and the abutment blocks 420 are arranged in a one-to-one correspondence, so as to improve the stability of the extrusion part 400 when sliding. In addition, a through hole 411 is provided on the sliding block 410 to ensure that the oil injection chambers 211 located on the opposite sides of the sliding block 410 are connected to each other.

[0051] Reference Figures 3 to 5 As shown, in some embodiments of the utility model, the oil injection part 210 includes a base 214 and a cover plate 215, the base 214 is provided with a concave cavity with an opening on one side, the oil outlet 212 and the opening side of the concave cavity are respectively located on opposite sides of the base 214, and the cover plate 215 is detachably covered on the opening side of the concave cavity to form an oil injection cavity 211, wherein, when the cover plate 215 is opened, the extrusion part 400 and the spring 220 can be taken out from the opening side of the concave cavity, and the oil injection part 210 is divided into the base 214 and the cover plate 215 to facilitate the disassembly and assembly of the extrusion part 400 and the spring 220, and the structure is simple and practical. In some specific embodiments, the cover plate 215 is connected to the base 214 by screws, which is convenient for disassembly and assembly.

[0052] Reference Figures 3 to 5As shown, in some embodiments of the utility model, the spring 220 is a compression spring, a recessed groove 216 is provided on the inner side of the cover plate 215, a guide column 430 is provided on the side of the extrusion portion 400 facing the cover plate 215, one end of the spring 220 is embedded in the recessed groove 216, and the other end is sleeved on the guide column 430, and the two ends of the spring 220 are respectively positioned by the recessed groove 216 and the guide column 430, and the spring 220 applies elastic pressure to the extrusion portion 400 by abutting the cover plate 215 and the extrusion portion 400.

[0053] Reference Figures 3 to 5 As shown, in some embodiments of the utility model, an arcuate abutting surface 217 is provided on one side of the oil injection part 210 for abutting against the drill rod 500, and the oil outlet 212 is provided on the arcuate abutting surface 217. The extrusion part 400 partially protrudes from the arcuate abutting surface 217 under normal conditions. In addition, a groove for cooperating with the abutment block 420 is also provided on the arcuate abutting surface 217. Specifically, during oil injection lubrication, during the swinging process of the swinging part 200, the drill rod 500 can abut against the extrusion part 400 and make the extrusion part 400 slide to the side of the arcuate abutting surface 217 facing the oil injection cavity 211. Then, the drill rod 500 abuts against the arcuate abutting surface 217. Since the oil outlet 212 is provided on the arcuate abutting surface 217, the lubricating grease in the oil injection cavity 211 can be more evenly extruded to the outer wall of the drill rod 500. Obviously, a plurality of oil outlets 212 can be provided, which are distributed at intervals along the circumference of the arcuate abutting surface 217.

[0054] Reference Figure 1 and Figure 2 As shown, in some embodiments of the utility model, the driving part 300 includes a cylinder, a fixed end of the cylinder is hinged to one of the fixed frame 100 and the swing part 200, and a telescopic end of the cylinder is hinged to the other, and the swing part 200 is driven to swing by the telescopic movement of the cylinder, and the structure is simple and practical.

[0055] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A drill pipe lubricating oil injection mechanism, characterized in that: include: Fixed frame (100); The swing part (200) is rotatably connected to the fixing frame (100), and the free end of the swing part (200) is provided with an oil filling part (210), and the oil filling part (210) is provided with an oil filling cavity (211) for storing lubricating grease, and one side of the oil filling cavity (211) is provided with an oil outlet (212); A driving part (300) connected to the swing part (200) and used for driving the swing part (200) to rotate; The extrusion portion (400) is elastically slidably arranged in the oil injection cavity (211), and the extrusion portion (400) at least partially extends out of the oil injection cavity (210) under normal conditions. The extrusion portion (400) is configured such that: when the swing portion (200) rotates toward the drill rod (500), the extrusion portion (400) can abut against the drill rod (500) and slide toward the oil injection cavity (211) under the push of the drill rod (500), so as to squeeze the lubricating grease in the oil injection cavity (211) from the oil outlet (212) to the outer wall of the drill rod (500).

2. The drill pipe lubricating oil injection mechanism according to claim 1, characterized in that: It also includes an oil delivery device, which includes an oil delivery pipe (600). The oil injection portion (210) is provided with an oil inlet (213) connected to the oil injection chamber (211). One end of the oil delivery pipe (600) is connected to the oil inlet (213) to deliver lubricating grease to the oil injection chamber (211).

3. The drill pipe lubricating oil injection mechanism according to claim 2, characterized in that: The oil delivery pipe (600) is provided with a one-way valve, and the one-way valve is configured to allow lubricating grease in the oil delivery pipe (600) to flow unidirectionally to the oil injection chamber (211).

4. The drill pipe lubricating oil injection mechanism according to claim 1, characterized in that: A spring (220) is provided in the oil injection cavity (211), and the spring (220) is used to apply elastic force to the extrusion portion (400) so as to keep the extrusion portion (400) at least partially extending out of the oil injection portion (210) under normal conditions.

5. The drill pipe lubricating oil injection mechanism according to claim 4, characterized in that: A through groove penetrating the oil injection portion (210) is provided on one side of the oil injection chamber (211); the extrusion portion (400) comprises a sliding block (410) and an abutment block (420) which are fixedly connected; the sliding block (410) is located in the oil injection chamber (211) and is slidably matched with the oil injection chamber (211); during the sliding process, the sliding block (410) can abut against the side wall of the oil injection chamber (211) to restrict the sliding block (410) in the oil injection chamber (211); the abutment block (420) is penetrated by the through groove and is slidably matched with the through groove; the abutment block (420) is used to abut against the drill rod (500).

6. The drill pipe lubricating oil injection mechanism according to claim 4, characterized in that: The oil injection portion (210) comprises a base (214) and a cover plate (215); the base (214) is provided with a concave cavity with an opening on one side; the oil outlet (212) and the opening side of the concave cavity are respectively located on two opposite sides of the base (214); the cover plate (215) is detachably covered on the opening side of the concave cavity to form the oil injection cavity (211); wherein, when the cover plate (215) is opened, the extrusion portion (400) and the spring (220) can be taken out from the opening side of the concave cavity.

7. The drill pipe lubricating oil injection mechanism according to claim 6, characterized in that: The spring (220) is a compression spring, a recessed groove (216) is provided on the inner side of the cover plate (215), a guide column (430) is provided on the side of the extrusion portion (400) facing the cover plate (215), one end of the spring (220) is embedded in the recessed groove (216), and the other end is sleeved on the guide column (430).

8. The drill pipe lubricating oil injection mechanism according to claim 6, characterized in that: The cover plate (215) is connected to the base body (214) via screws.

9. The drill pipe lubricating oil injection mechanism according to claim 1, characterized in that: The oil injection portion (210) is provided with an arc-shaped abutting surface (217) on one side thereof for abutting against the drill rod (500); the oil outlet (212) is provided on the arc-shaped abutting surface (217); and the extrusion portion (400) partially protrudes from the arc-shaped abutting surface (217) under normal conditions.

10. The drill pipe lubricating oil injection mechanism according to claim 1, characterized in that: The driving part (300) comprises an oil cylinder, a fixed end of the oil cylinder is hinged to one of the fixed frame (100) and the swing part (200), and a telescopic end of the oil cylinder is hinged to the other.

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