Column tube lubricating device on mechanical tubular column

Abstract

The utility model provides a column tube lubricating device on a mechanical tubular column, and relates to the technical field of column sleeve surface oiling. The oil injection assembly comprises an oil injection lantern ring, a positioning pin and an elastic covering piece, the column sleeve is placed in an annular space formed by the oil injection lantern ring and the positioning pin, the elastic covering piece is installed at the oil outlet position of the oil injection lantern ring, the elastic covering piece comprises a limiting ring, a membrane, a connecting edge and an oil outlet gap, and the limiting ring is connected with the oil outlet position; the diaphragm is connected with the limiting ring through a plurality of connecting edges, an oil outlet gap is reserved between the limiting ring and the diaphragm, when the diaphragm and the connecting edges are pressed, the diaphragm and the connecting edges deform and stretch, the oil outlet gap is enlarged, and when the diaphragm and the connecting edges are not pressed, the diaphragm is restored and attached to the surface of the limiting ring, and the oil outlet gap is closed; the oil control assembly is connected to the supporting assembly and used for outputting oil outwards through the oil injection lantern ring, the elastic covering piece is adopted for replacing a traditional ball and spring structure, and a lubricating mechanism is remarkably simplified.

Description

Technical Field

[0001] This utility model relates to the field of oil coating technology for column sleeve surfaces, and in particular to a lubrication device for a mechanical column tube. Background Technology

[0002] Existing sleeve lubrication structures mostly rely on mechanical components such as balls and springs to release lubricating oil. For example, a design using a ball seat and spring can achieve lubrication, but its complex structure requires precision machining of the ball seat and spring, resulting in high production costs. Furthermore, moving parts are prone to wear, requiring frequent maintenance, and lubricating oil release is easily affected by the rolling resistance of the balls, leading to uneven lubrication or the risk of blockage. In addition, existing lubrication mechanisms have insufficient sealing, making them prone to lubricating oil leakage or dust intrusion, affecting their service life. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a mechanical tube lubrication device. The technical problem to be solved by this utility model is: how to provide a sleeve lubrication mechanism that is simple in structure, low in cost and can uniformly release lubricating oil, while avoiding wear and leakage of moving parts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical tube lubrication device for a mechanical tube column, comprising a support assembly placed on a worktable; an oil injection assembly comprising an oil injection ring, a positioning pin, and an elastic cover, wherein the oil injection ring is connected to the support assembly, the tube column is placed in the annular space formed by the oil injection ring and the positioning pin, and an elastic cover is installed at the oil outlet position of the oil injection ring, the elastic cover comprising a limiting ring, a diaphragm, a connecting edge, and an oil outlet gap, wherein the limiting ring is connected to the oil outlet, the diaphragm is connected to the limiting ring through several connecting edges, and an oil outlet gap is maintained between the limiting ring and the diaphragm; when the diaphragm and the connecting edge are compressed, they deform and stretch, and the oil outlet gap increases; when the diaphragm and the connecting edge are not compressed, the diaphragm recovers and adheres to the surface of the limiting ring, and the oil outlet gap closes; and an oil control assembly connected to the support assembly for outputting oil through the oil injection ring.

[0005] In a preferred embodiment, the oil injection ring includes an oil distribution ring, an outer ring, and an inner ring. The oil distribution ring and the outer ring are connected to the support assembly, and the inner ring and the outer ring are connected. The oil pumped out by the oil control assembly passes through the oil distribution ring, the outer ring, and the inner ring in sequence and is discharged from the output port III located on the inner ring.

[0006] In a preferred embodiment, the diameter of the inlet I of the oil separator ring is larger than the diameter of the outlet I of the oil separator ring. There is one inlet I and at least two outlet I. The inlet II of the outer ring and the outlet I of the oil separator ring are connected by a pipe.

[0007] In a preferred embodiment, the inner wall of the outer ring is in close contact with the outer wall of the inner ring, the output port II of the outer ring is aligned with the input port III of the inner ring, a sealing ring is provided on the contact surface of the outer ring and the inner ring, the sealing ring is located around the output port II and the input port III, and the limiting ring is connected to the output port III of the inner ring.

[0008] In a preferred embodiment, the support assembly includes a support plate and an upper plate. The support plate is connected to the worktable, and the upper plate is fixedly mounted on the support plate at intervals. An oil distribution ring is connected to the lower part of the support plate, and an outer ring is connected to the upper part of the upper plate.

[0009] In a preferred embodiment, a cavity is provided in the upper plate, and a positioning pin is elastically slidably connected to the cavity. A pin rod is connected to the positioning pin, and a collar is connected to the bottom of the cavity. The pin rod passes through the collar. When the positioning pin is subjected to downward pressure, it will move the pin rod downward to the detection area of ​​the proximity sensor. The sensor, controller, and electrically controlled valve of the oil pump are electrically connected.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This application significantly simplifies the lubrication mechanism by replacing the traditional ball and spring structure with an elastic cover, resulting in a simplified structure and reduced cost. Furthermore, the absence of moving parts completely avoids wear and jamming issues, extending service life. The elastic cover releases lubricating oil evenly through elastic deformation, and combined with the sealing ring design, it effectively prevents leakage and contamination. When the elastic cover is compressed, lubricating oil seeps out evenly through micro-gap, providing a wider coverage area. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0013] Figure 1 This is a structural diagram of the lubrication device of this utility model.

[0014] Figure 2 This is a schematic diagram showing the layout of the central oil control component of this utility model.

[0015] Figure 3 This is a schematic diagram showing the layout of the oil injection component in this utility model.

[0016] Figure 4 This is a structural diagram of the oil injection component in this utility model.

[0017] Figure 5 This is a schematic diagram showing the placement of the elastic covering element in this utility model.

[0018] Figure 6This is a schematic diagram of the elastic covering component in this utility model.

[0019] Figure 7 This is a structural diagram of the elastic cover in the closed state of this utility model.

[0020] Figure 8 This is a structural diagram of the elastic cover in the open state of this utility model.

[0021] The attached figures are labeled as follows: 10, support assembly; 11, support plate; 12, upper plate; 13, side plate; 20, oil injection assembly; 21, oil distribution ring; 22, outer ring; 23, inner ring; 24, positioning pin; 25, elastic cover; 251, limiting ring; 252, diaphragm; 253, connecting edge; 254, oil outlet gap; 30, oil control assembly; 31, oil pump; 32, collar; 33, pin. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Example

[0024] This product mainly consists of several parts, including support component 10, oil injection component 20, and oil control component 30.

[0025] The support assembly 10 provides support for the frame structure and includes a support plate 11, an upper plate 12, and a side plate 13. The support plate 11 and the workbench are installed and fixed by threaded fasteners. The upper plate 12 is fixed above the support plate 11 by column feet of a certain height. The column feet are threadedly connected to the support plate 11 and the upper plate 12 by threaded fasteners. The side plate 13 is connected to the outer edge of the support plate 11 by threaded fasteners and covers downward to form a protected space.

[0026] The oil injection assembly 20 is used to distribute the oil, so that the original single oil stream is distributed into multiple fine streams to uniformly and efficiently lubricate the outer wall of the sleeve. It includes an oil distribution ring 21, an outer ring 22, an inner ring 23, a locating pin 24, and an elastic cover 25.

[0027] The oil separator ring 21 is fixed to the lower side of the support plate 11 by threaded fasteners. The oil separator ring 21 has one inlet port I and several outlet ports I. The inlet port I and the outlet port I are connected by a flow channel I set inside the oil separator ring 21. It can be seen that the diameter of the inlet port I is larger than the diameter of the outlet port I. The inlet port I, the flow channel I, and the outlet port I are smoothly connected to divide a stream of oil into several streams for outward output.

[0028] Preferably, the number of output ports I can be four.

[0029] The outer ring 22 is detachably connected to the upper side of the upper plate 12 via threaded fasteners. The input port II of the outer ring 22 and the output port I of the oil distribution ring 21 are connected by corresponding flexible pipes. The pipes are connected to the corresponding input port II and output port I via threaded interfaces. The pipe connection method is existing technology and will not be described in detail. The number of input ports II of the outer ring 22 and the number of output ports I of the oil distribution ring 21 are equal.

[0030] The outer wall of the inner ring 23 is tightly attached to the inner wall of the outer ring 22 and is detachably connected to the outer ring 22 via threaded fasteners. The bolt connection is located on the upper end face of the outer ring 22 and the inner ring 23. The inner ring 23 has an inlet port III and an outlet port III, which are connected by a flow channel III located in the inner ring 23, with a smooth transition between them. The inlet port III of the inner ring 23 is connected to the outlet port II of the outer ring 22, and a sealing ring is embedded at the outer edge of the inlet port III to ensure that no leakage occurs when the oil flows from the outlet port II to the inlet port III.

[0031] It should be noted that the sealing ring provides excellent sealing performance when compressed by the inner ring 23 and the outer ring 22. The sealing ring is simultaneously embedded between the outer ring 22 and the inner ring 23 without hindering the normal fit between them. The groove for embedding the sealing ring is slightly wider than the diameter of the sealing ring's cross-section, preventing interference with the deformed sealing ring.

[0032] The locating pin 24 is placed inside the inner ring 23. There is a space between the outer wall of the locating pin 24 and the inner wall of the inner ring 23. The sleeve is inserted into this space. The inner wall of the sleeve and the outer wall of the locating pin 24 are fitted together to ensure coaxiality. There is a gap between the outer wall of the sleeve and the inner wall of the inner ring 23 so that the oil can overflow onto the sleeve normally. The size of the gap needs to be controlled by the manufacturer during production.

[0033] The elastic cover 25 is installed on the output port III of the inner ring 23. It includes a limiting ring 251, a diaphragm 252, a connecting edge 253, and an oil outlet gap 254. The edge of the limiting ring 251 is provided with a retaining ridge, and a retaining groove is opened on the inner wall of the output port III of the inner ring 23. When the retaining ridge is subjected to force, it deforms and can be pressed into the retaining groove. When it is fully inserted into the retaining groove, the retaining ridge returns to its original position under the action of elastic force. The retaining ridge and the retaining groove are engaged and connected, fixing the entire elastic cover 25 and the inner ring 23. The diaphragm 252 is laid on the limiting ring 251 and is fixed to the limiting ring 251 by several connecting edges 253. The oil outlet gap 254 is located on the side of the connecting edge 253. The advantage of this design is that when pressure is released from the inside of the inner ring 23 outlet port III, the diaphragm 252 and the connecting edge 253 will deform under pressure, and the oil outlet gap 254 will increase, allowing oil to gradually seep out from the oil outlet gap 254. When the inner ring 23 stops outputting oil, the diaphragm 252 and the connecting edge 253 will return to their original shape under their own deformation force, covering the outlet port III of the inner ring 23. When not in use, the closed elastic cover 25 can play a role in preventing dust.

[0034] Preferably, the elastic cover 25 is circular, grooved, or other shapes.

[0035] Preferably, the elastic cover 25 is made entirely of oxidation-resistant and corrosion-resistant rubber, such as nitrile rubber or fluororubber. The elastic cover 25 can be manufactured by injection molding as a single piece.

[0036] Preferably, the number of connecting edges 253 and oil outlet gaps 254 are closely related. By rationally designing the number and length of oil outlet gaps 254, the oil output from the inner ring 23 outlet port III can be divided into more fine streams, which is especially suitable for cases where the orifice diameter of the inner ring 23 outlet port III is large. The presence of the elastic cover 25 can simultaneously overcome the problems of uneven oil output and lack of overall dust protection.

[0037] The oil control assembly 30 is used to inject oil into the oil injection assembly 20, and includes an oil pump 31, a collar 32, a pin 33, and a proximity sensor.

[0038] Proximity sensors can be infrared sensors.

[0039] Oil pump 31 is connected to support plate 11 via flange. The oil outlet of oil pump 31 is connected to inlet I of oil distributor ring 21, and the oil inlet of oil pump 31 is connected to external oil. Oil pump 31 pumps external oil into oil distributor ring 21. A collar 32 is fixedly connected to upper plate 12. A pin 33 passes through collar 32. Positioning pin 24 and pin 33 are detachably connected by threaded fasteners. A cavity is provided in upper plate 12 for positioning pin 24 to move up and down. The bottom of positioning pin 24 and the bottom surface of cavity are slidably connected by spring.

[0040] When the positioning pin 24 is not fitted with a sleeve, the positioning pin 24 does not move downward into the sensor's detection range. When the positioning pin 24 is fitted with a sleeve, the user applies additional downward pressure, causing the sleeve to press down on the stepped surface of the positioning pin 24. The positioning pin 24 then drives the pin rod 33 to overcome the elastic force and continue to move downward, allowing the pin rod 33 to move into the sensor's detection range. When the pin rod 33 approaches, the sensor receives the reflected electromagnetic wave signal, thereby transmitting the electrical signal to the controller that is electrically connected to it. The controller is also electrically connected to the electrically controlled valve and pump unit of the oil pump 31. Therefore, the controller can control the electrically controlled valve to open, and the pump unit inside the oil pump 31 pumps the oil into the interior of the oil distribution ring 21.

[0041] The structure of the oil pump 31 described above is prior art and is not an improvement point of this application, so it will not be described in detail.

[0042] In summary, this solution significantly simplifies the lubrication mechanism by replacing the traditional ball and spring structure with an elastic cover 25, resulting in a simplified structure and reduced costs. Furthermore, the absence of moving parts completely eliminates wear and jamming issues, extending service life. The elastic cover 25 releases lubricating oil evenly through elastic deformation, and combined with the sealing ring design, effectively prevents leakage and contamination. Under pressure, the elastic cover 25 evenly leaks lubricating oil through micro-gap, providing wider coverage.

[0043] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A mechanical string pipe lubricator, comprising: include: Support component (10) is placed on the worktable; The oil injection assembly (20) includes an oil injection ring, a positioning pin (24), and an elastic cover (25). The oil injection ring is connected to the support assembly (10). The sleeve is placed in the annular space formed by the oil injection ring and the positioning pin (24). An elastic cover (25) is installed at the oil outlet position of the oil injection ring. The elastic cover (25) includes a limiting ring (251), a diaphragm (252), a connecting edge (253), and an oil outlet gap (254). The diaphragm (252) is connected to the limiting ring (251) by several connecting edges (253). An oil outlet gap (254) is maintained between the limiting ring (251) and the diaphragm (252). When the diaphragm (252) and the connecting edges (253) are compressed, they will deform and stretch, and the oil outlet gap (254) will become larger. When the diaphragm (252) and the connecting edges (253) are not compressed, the diaphragm (252) will recover and adhere to the surface of the limiting ring (251), and the oil outlet gap (254) will close. The oil control component (30) is connected to the support component (10) and is used to output oil through the oil injection sleeve.

2. A mechanical tubing string pipe lubricator as defined in claim 1, wherein, The oil injection ring includes an oil distribution ring (21), an outer ring (22), and an inner ring (23). The oil distribution ring (21) and the outer ring (22) are connected to the support assembly (10), and the inner ring (23) and the outer ring (22) are connected. The oil pumped out by the oil control assembly (30) passes through the oil distribution ring (21), the outer ring (22), and the inner ring (23) in sequence and is discharged from the output port III located on the inner ring (23).

3. A mechanical tubing string pipe lubricator as defined in claim 2, wherein, The diameter of the inlet I of the oil separator ring (21) is larger than the diameter of the outlet I of the oil separator ring (21). There is one inlet I and at least two outlet I. The inlet II of the outer ring (22) and the outlet I of the oil separator ring (21) are connected by a pipe.

4. A mechanical tubing string pipe lubricator as defined in claim 3, wherein, The inner wall of the outer ring (22) is close to the outer wall of the inner ring (23). The output port II of the outer ring (22) is aligned with the input port III of the inner ring (23). A sealing ring is provided on the contact surface of the outer ring (22) and the inner ring (23). The sealing ring is located around the output port II and the input port III. The limiting ring (251) is connected to the output port III of the inner ring (23).

5. A mechanical string pipe lubricator as defined in claim 1, wherein, The support assembly (10) includes a support plate (11) and an upper plate (12). The support plate (11) is connected to the worktable. The upper plate (12) is fixed on the support plate (11) at intervals. The oil distribution ring (21) is connected to the lower part of the support plate (11), and the outer ring (22) is connected to the upper part of the upper plate (12).

6. A mechanical tubing string pipe lubricator as defined in claim 5, wherein, The upper plate (12) has a cavity, and the positioning pin (24) is elastically slidably connected to the cavity. A pin rod (33) is connected to the positioning pin (24), and a collar (32) is connected to the bottom of the cavity. The pin rod (33) passes through the collar (32). When the positioning pin (24) is subjected to downward pressure, it will drive the pin rod (33) to move downward to the detection area of ​​the proximity sensor. The sensor, controller, and the electrically controlled valve of the oil pump (31) are electrically connected.

Images