A push rod motor

Abstract

The utility model discloses a kind of push rod motor, belong to push rod motor field. Including push rod motor, the push rod motor includes gear box;Lubricating component is set on gear box, lubricating component includes the oil guide portion of detachable setting in the central position of gear box, oil supply portion is provided on the oil guide portion to the oil guide portion into lubricating oil, two groups of sealing portion are provided on the oil guide portion;Pressurizing component, it is set in one end of oil supply portion, pressurizing component includes the pressurizing portion of setting in one end of oil supply portion, one end of oil supply portion is provided with the pipe clamp portion of the fixed pressurizing portion. A kind of push rod motor of the application, by the design of detachable oil guide portion, sealing protection, pressurization auxiliary, the technical problem of traditional integrated chute oil dirt accumulation, oil passage blockage is solved, realize the long-term stability, efficient lubrication of gear transmission mechanism, guarantee push rod motor operating efficiency and service life.

Description

Technical Field

[0001] This utility model relates to the field of push rod motor technology, and in particular to a push rod motor. Background Technology

[0002] A linear actuator, also known as an electric linear actuator, is an electromechanical integrated actuator that converts the rotational motion of an electric motor into the linear reciprocating motion of a linear actuator. It typically consists of core components such as a drive motor, a reduction gear set, a screw, a nut, a linear actuator, a guide sleeve, and a housing. After the drive motor starts, the reduction gear set reduces the speed and increases the torque, driving the screw to rotate. The screw and nut form a helical transmission pair, converting the rotational motion of the screw into the linear motion of the nut. The nut is fixedly connected to the linear actuator, which in turn pushes the linear actuator to extend or retract along the guide sleeve.

[0003] For example, an electric push rod with a lubrication structure, disclosed in CN222085099U, includes a gear seat, a lubrication groove, a boss, an oil guide slide, an oil outlet, a support pipe, a support plate, a pressurizing air bladder, and a lubrication cylinder; thereby enabling the lubrication of the gear, and the pressurizing air bladder at one end of the support plate can be pressed to pressurize the inside of the lubrication cylinder, causing the lubricating oil to be output quickly, thus achieving rapid lubrication;

[0004] In the above solution, the oil guide slide is integrally molded with the boss and gear seat, which improves structural stability. However, this design can affect oil flow due to lubricant adhesion during long-term use. Because the oil guide slide is an inclined groove structure and cannot be disassembled after being integrally molded with the gear seat, some lubricant leaking from the oil outlet flows along the slide, and due to changes in ambient temperature, some of the lubricant adheres to the inner wall of the slide, forming grease. Over time, this grease accumulates and thickens, reducing the internal flow space of the slide and increasing the resistance to subsequent lubricant flow. Oil that could flow smoothly by gravity requires greater pressure to flow, reducing lubrication efficiency. Furthermore, the accumulated grease easily mixes with dust and debris falling into the environment, forming more stubborn dirt that is harder to clean, further hindering lubricant flow and potentially clogging the oil outlet under the force of the oil. Therefore, a push rod motor needs to be designed.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] This utility model provides a push rod motor to solve the problems of existing oil guide slides, bosses, and gear seats being integrally formed, making them difficult to disassemble, easily accumulating oil and impurities, increasing oil resistance, clogging oil outlet holes, and reducing lubrication efficiency.

[0007] The present invention adopts the following technical solution: a push rod motor, mainly including a push rod motor, the push rod motor including a gearbox; a lubrication assembly, which is disposed on the gearbox, the lubrication assembly including an oil guide part detachably disposed in the center of the gearbox and used to guide lubricating oil into the gearbox, the oil guide part being provided with an oil supply part for supplying lubricating oil into the oil guide part, and the oil guide part being provided with two sets of sealing parts; a pressurizing assembly, which is disposed at one end of the oil supply part, the pressurizing assembly including a pressurizing part disposed at one end of the oil supply part, and a pipe clamp part for fixing the pressurizing part at one end of the oil supply part.

[0008] Furthermore, the oil guiding part includes a concave cover embedded in the gearbox, the gearbox having an embedding groove adapted to the size of the concave cover, the concave cover being connected and fixed to the gearbox by bolts, the two ends of the concave cover being open, an oil collection box being fixed in the center of the concave cover, and through holes being provided on both sides of the oil collection box.

[0009] Oil guide channels are fixed on both sides of the oil collection box. The oil guide channels have through and inclined oil outlet holes. The oil outlet holes are aligned with the through holes. Oil inlet grooves are opened on both sides of the inner wall of the embedded groove and near the bottom of the oil guide channel. A vertically arranged oil guide pipe is connected to the oil collection box.

[0010] Furthermore, the oil supply unit includes a mounting box fixedly fitted to one end of the oil guide pipe. The upper surface of the mounting box is open. One end of the oil guide pipe passes through the mounting box and is connected to an oil drain pipe via a one-way valve. A fixed base is fixed to one end of the mounting box. The top surface of the fixed base is open. Silicone protrusions are evenly spaced along the circumference of the inner wall of the opening of the fixed base. An oil storage bottle is inserted into the opening of the fixed base. One end of the oil drain pipe is connected to the bottom surface of the oil storage bottle. A manual valve is provided in the middle section of the oil drain pipe. A screw cap is threaded to the top of the oil storage bottle.

[0011] Furthermore, the sealing part includes a sealing cover hinged to one side of the concave cover, which controls the opening and closing of the oil guide slide and the oil outlet by flipping. One side of the sealing cover has an overlapping member with a fastener threaded onto it. A threaded hole is provided on the upper surface of one side of the concave cover. A sealing strip is provided at the contact position between the sealing cover and the concave cover and the oil collection box.

[0012] Furthermore, the pressurization unit includes an airbag disposed on one side of the mounting box. The airbag has a pipe that passes through the mounting box and extends into the opening of the mounting box. One end of the pipe is connected to the screw cap via a hose. The pipe is used to deliver the air pressure generated by the airbag to the oil storage bottle.

[0013] Furthermore, the pipe clamp includes two sets of interlocking arc-shaped clamping parts. One end of each set of clamping parts is fixed with a mating piece that fits against each other. The mating piece of the clamping part at the lower end is hinged with a snap-fit ​​shaft. The mating piece of the clamping part at the upper end is provided with a corresponding notch. The snap-fit ​​shaft is threaded with a locking element.

[0014] Furthermore, silicone anti-slip pads are provided at the contact positions between the two sets of clamping parts and the pipe. The silicone anti-slip pads increase the friction between the clamping parts and the pipe. The lower clamping part is connected to the bottom surface of the mounting box through a support rod. A one-way valve that only allows air to be injected into the pipe is connected to the surface of the pipe.

[0015] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0016] A push rod motor employs a detachable concave cover, oil collection box, and oil guide slide combination structure in its lubrication component, rather than a one-piece design. This allows for easy disassembly and cleaning when oil sludge accumulates or maintenance is required, completely solving the defects of traditional one-piece slides, which suffer from long-term oil sludge accumulation, reduced flow space, and increased lubrication resistance due to the inability to disassemble. The inclined oil outlet design of the oil guide slide, in conjunction with the oil collection box and oil guide pipe, guides lubricating oil into the meshing area of ​​the gear transmission mechanism within the gearbox, ensuring precise lubrication. The sealing component, through the cooperation of the sealing cover, overlapping parts, fasteners, and sealing strip, effectively prevents dust and impurities from entering, avoiding the formation of stubborn dirt that clogs the oil outlet by mixing oil sludge and dust. The pressurization component, with its air bladder, pipe, and pipe clamp, works together to assist lubricating oil flow with air pressure when oil circuit resistance increases, ensuring continuous lubrication. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram of a push rod motor according to this application;

[0020] Figure 2 for Figure 1 A partial structural diagram;

[0021] Figure 3 for Figure 2 Enlarged view of point A;

[0022] Figure 4 for Figure 1 A schematic diagram of a local structure in the image;

[0023] Figure 5 for Figure 4 Enlarged view of point B;

[0024] Figure label:

[0025] 1. Push rod motor; 11. Gearbox; 111. Oil inlet groove; 12. Push rod actuator cylinder; 13. Push rod body; 14. Mounting base; 15. Drive motor; 2. Lubrication assembly; 21. Concave cover; 22. Oil guide slide; 23. Oil outlet; 24. Oil collection box; 25. Oil guide pipe; 26. Oil drain pipe; 27. Mounting box; 28. Fixed base; 281. Convex ball; 29. ​​Oil reservoir; 210. Screw cap; 211. Sealing cap; 212. Connecting piece; 213. Fastener; 3. Pressurization assembly; 31. Airbag; 32. Pipe; 33. Hose; 34. Clamping part; 35. Connecting piece; 36. Snap-fit ​​shaft; 37. Locking piece; 38. Support rod; 39. One-way valve II. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-2 and Figure 4 As shown in the figure, the present invention provides a push rod motor, including a push rod motor 1, and the push rod motor 1 includes a gearbox 11, which integrates a gear transmission mechanism, and a push rod actuator 12 mounted on the gearbox 11. The push rod actuator 12 has a push rod body 13, which is an actuator for realizing linear push and pull actions. It can convert rotational motion into linear motion through thread transmission or other means. At the same time, a drive motor 15 is mounted on the gearbox 11 to provide a power source for the entire push rod motor 1. The drive motor 15 drives the transmission mechanism inside the gearbox 11 through the output shaft. The gearbox 11 reduces the power of the drive motor 15 and increases the torque before transmitting it to the push rod actuator 12 to drive the push rod body 13 to realize linear motion. A mounting base 14 is fixed on the bottom surface of the gearbox 11 for mounting the push rod motor 1 on the equipment to ensure the structural stability during operation.

[0029] like Figures 2-5As shown, a lubrication assembly 2 is provided on the gearbox 11. The lubrication assembly 2 is used to lubricate the gear transmission mechanism integrated inside the gearbox 11, reduce gear wear, and extend the service life of the push rod motor 1. The lubrication assembly 2 includes an oil guide part embedded in the center of the gearbox 11. The oil guide part includes a concave cover 21 embedded in the gearbox 11. At the same time, an embedding groove adapted to the size of the concave cover 21 is opened on the gearbox 11 (micro-shown in the figure). The concave cover 21 is connected and fixed to the gearbox 11 by bolts. The two ends of the concave cover 21 are open. An oil collection box 24 is fixed in the center of the concave cover 21. Through holes are opened on both sides of the oil collection box 24 (not shown in the figure).

[0030] Oil guide channels 22 are fixed on both sides of the oil collection box 24. The oil guide channels 22 have through and inclined oil outlet holes 23, which are aligned with the through holes. At the same time, oil inlet grooves 111 are opened on both sides of the inner wall of the embedded groove and near the bottom of the oil guide channels 22. A vertically arranged oil guide pipe 25 is connected to the oil collection box 24. Thus, the oil guide channels 22 guide the lubricating oil through the oil inlet grooves 111 to the meshing area of ​​the gear transmission mechanism through the inclined design and oil outlet holes 23.

[0031] An oil supply unit is sleeved at one end of the oil guide tube 25. This oil supply unit includes a mounting box 27 fixedly sleeved at one end of the oil guide tube 25. The upper surface of the mounting box 27 is open. An oil drain pipe 26 is connected to the end of the oil guide tube 25 that passes through the mounting box 27 via a one-way valve. The oil drain pipe 26 is used to deliver lubricating oil to the oil guide tube 25. The one-way valve restricts the unidirectional flow of lubricating oil. A fixing base 28 is fixed to one end of the mounting box 27. The top surface of the fixing base 28 is open, and silicone protrusions 281 are evenly spaced along the circumference of the inner wall of the opening of the fixing base 28. An oil storage bottle 29 is inserted into the opening of the fixed base 28. The oil storage bottle 29 is used to store lubricating oil. The silicone convex ball 281 can enhance the installation stability of the oil storage bottle 29 and prevent it from loosening. One end of the oil drain pipe 26 is connected to the bottom surface of the oil storage bottle 29. At the same time, a manual valve (not shown in the figure) is set in the middle section of the oil drain pipe 26. The manual valve is located at the opening of the mounting box 27 for easy manual operation. The manual valve is used to manually control the start and stop of the supply of lubricating oil. A screw cap 210 is threaded to the top of the oil storage bottle 29. The screw cap 210 is used to close the oil storage bottle 29 and facilitates the subsequent replenishment of lubricating oil.

[0032] Furthermore, two sets of sealing parts are provided on the concave cover 21. The sealing parts can seal and cover the oil guide slide 22 and the oil outlet 23 to prevent dust and impurities from entering and contaminating the lubricating oil, while also preventing the lubricating oil from evaporating and ensuring the stability of the lubrication effect. The sealing part includes a sealing cover 211 hinged to one side of the concave cover 21. The opening and closing of the oil guide slide 22 and the oil outlet 23 can be controlled by flipping it. One side of the sealing cover 211 has an overlapping member 212, which is used to securely overlap the sealing cover 211 onto the concave cover 21, ensuring the structural stability of the sealing cover 211 after it is closed. The overlapping member 212 is suitable for... The fastener 213 is threaded onto the other side of the concave cover 21 and is attached to the concave cover 212. A threaded hole (not shown in the figure) is provided on the upper surface of one side of the concave cover 21. The fastener 213 further locks the concave cover 212 by cooperating with the threaded hole on the concave cover 21, thereby enhancing the sealing reliability of the sealing cover 211. A sealing strip (not shown in the figure) is provided at the contact position between the sealing cover 211 and the concave cover 21 and the oil collection box 24. The sealing strip is used to fill the gap between the sealing cover 211 and the concave cover 21 and the oil collection box 24, thereby improving the sealing performance and preventing lubricating oil leakage and impurity intrusion.

[0033] like Figures 4-5 As shown, a pressurizing component 3 is provided at one end of the mounting box 27. The pressurizing component 3 is used to apply stable air pressure to the oil storage bottle 29 to help the lubricating oil overcome resistance and flow out smoothly, ensuring the continuity of lubrication supply. The pressurizing component 3 includes a pressurizing part provided at one end of the mounting box 27. The pressurizing part includes an airbag 31 provided on one side of the mounting box 27. The airbag 31 is the power source of the pressurizing part and provides air pressure by compression and release. The airbag 31 has a pipe 32 that passes through the mounting box 27 and extends into the opening of the mounting box 27. One end of the pipe 32 is connected to the screw cap 210 through a hose 33. The pipe 32 is used to deliver the air pressure generated by the airbag 31 to the oil storage bottle 29.

[0034] Meanwhile, a pipe clamp is provided at one end of the mounting box 27 to fix the pressurizing part, ensuring the stability of air pressure transmission. The pipe clamp includes two sets of interlocking arc-shaped clamping parts 34, and one end of each set of clamping parts 34 is fixed with a mating piece 35. (Reference) Figure 5A snap-fit ​​shaft 36 is hinged to the mating piece 35 of the clamping part 34 at the lower end, and a corresponding notch (not shown in the figure) is opened on the mating piece 35 of the clamping part 34 at the upper end. A locking member 37, which is a nut, is threaded onto the snap-fit ​​shaft 36. Silicone anti-slip pads are provided at the contact positions between the two sets of clamping parts 34 and the pipe 32. The silicone anti-slip pads increase the friction between the clamping part 34 and the pipe 32 to prevent the pipe 32 from sliding and loosening. The clamping part 34 at the lower end is connected to the bottom surface of the mounting box 27 through the support rod 38. A one-way valve 39 is connected to the surface of the pipe 32. The one-way valve 39 only allows air to be charged into the pipe 32.

[0035] Working principle: Before starting the push rod motor 1, the initial preparation of the lubrication assembly 2 must be completed: open the screw cap 210 at the top of the oil reservoir 29, inject an appropriate amount of lubricating oil into the oil reservoir 29, and then tighten the screw cap 210 to prevent impurities from entering; the oil reservoir 29 is securely inserted into the mounting box 27 through the silicone protrusion 281 on the inner wall of the fixed base 28, ensuring that the oil drain pipe 26 is tightly connected to the bottom surface of the oil reservoir 29. At this time, the manual valve is in the closed state, and the lubricating oil in the oil reservoir 29 is temporarily stored in the bottle; the one-way valve prevents the lubricating oil from flowing backward, ensuring the initial sealing of the oil circuit. The sealing cap 211 on the concave cover 21 is locked by the overlapping piece 212 and the fastener 213, and the sealing strip fits tightly against the concave cover 21 and the oil collection box 24 to form a closed space, preventing the oil guide slide 22 and the oil outlet 23 from being contaminated.

[0036] When lubrication of the gear transmission mechanism inside the gearbox 11 is required, the manual valve on the oil drain pipe 26 is opened. The lubricating oil in the oil reservoir 29 enters the guide pipe 25 through the oil drain pipe 26 and the one-way valve under the action of gravity, and then flows into the oil collection box 24 for temporary storage. The through holes on both sides of the oil collection box 24 are aligned with the oil outlet holes 23 of the guide slide 22. The lubricating oil enters the guide slide 22 through the through holes and flows along the inclined guide slide 22 to the oil outlet holes 23. Finally, the lubricating oil falls into the meshing area of ​​the gear transmission mechanism through the oil inlet groove 111 embedded in the inner wall of the gearbox 11, thereby lubricating the gears and reducing friction and wear during transmission.

[0037] If the remaining lubricating oil in the oil reservoir 29 is low or there is slight resistance in the oil passage causing poor flow, the pressurization component 3 can assist in oil supply: Press the air bladder 31 on one side of the mounting box 27, and the gas in the air bladder 31 enters the oil reservoir 29 through the pipe 32 and hose 33 (the screw cap 210 is already connected to the hose 33). The one-way valve 39 ensures that the gas flows only into the pipe 32, preventing backflow. After the air pressure in the oil reservoir 29 increases, it pushes the lubricating oil to flow faster through the drain pipe 26 to the guide pipe 25, ensuring continuous lubrication. At the same time, the two sets of arc-shaped clamping parts 34 of the pipe clamp securely clamp the pipe 32 through the mating piece 35, the snap-fit ​​shaft 36, and the locking piece 37. The silicone anti-slip pad prevents the pipe 32 from sliding, and the support rod 38 enhances the connection stability between the pipe clamp and the mounting box 27, ensuring that the pipe 32 does not shift during the air pressure delivery process.

[0038] During the operation of the push rod motor 1, the sealing cover 211 remains closed. The overlapping part 212, together with the fastener 213 and the sealing strip, effectively prevents external dust and debris from entering the oil guide channel 22 and the oil outlet 23, thus avoiding contamination of the lubricating oil. Simultaneously, it reduces the evaporation of lubricating oil due to the temperature rise caused by the operation of the gearbox 11, ensuring a long-lasting and stable lubrication effect. When maintenance or cleaning of the oil guide section is required, simply loosen the fastener 213 and flip the sealing cover 211 to expose the oil guide channel 22 and the oil collection box 24; the operation is convenient. Overall, the lubrication assembly 2, through the cooperation of the oil supply part, oil guide part, sealing part, and pressurization assembly 3, achieves continuous lubrication of the gear transmission mechanism inside the gearbox 11.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A push rod motor, characterized in that: include A push rod motor (1) includes a gearbox (11); Lubrication assembly (2) is disposed on the gearbox (11). The lubrication assembly (2) includes an oil guide part that is detachably disposed in the center of the gearbox (11) and is used to guide lubricating oil into the gearbox (11). The oil guide part is provided with an oil supply part for supplying lubricating oil into the oil guide part, and the oil guide part is provided with two sets of sealing parts. A pressurizing assembly (3) is provided at one end of the oil supply section. The pressurizing assembly (3) includes a pressurizing section provided at one end of the oil supply section. A pipe clamp is provided at one end of the oil supply section to fix the pressurizing section. The oil guide includes a concave cover (21) embedded in a gearbox (11). The gearbox (11) has an embedded groove that matches the size of the concave cover (21). The concave cover (21) is connected and fixed to the gearbox (11) by bolts. The two ends of the concave cover (21) are open. An oil collection box (24) is fixed in the center of the concave cover (21). Through holes are opened on both sides of the oil collection box (24). Oil collection box (24) is fixed with oil guide slides (22) on both sides. The oil guide slides (22) have through and inclined oil outlet holes (23). The oil outlet holes (23) are aligned with the through holes. Oil inlet grooves (111) are opened on both sides of the inner wall of the groove and near the bottom of the oil guide slides (22). The oil collection box (24) is connected to a vertically arranged oil guide pipe (25).

2. The push rod motor according to claim 1, characterized in that: The oil supply unit includes a mounting box (27) fixedly sleeved on one end of the oil guide pipe (25). The upper surface of the mounting box (27) is open. The oil guide pipe (25) passes through one end of the mounting box (27) and is connected to an oil drain pipe (26) through a one-way valve. A fixed base (28) is fixed on one end of the mounting box (27). The top surface of the fixed base (28) is open. Silicone convex balls (281) are evenly spaced along the circumference of the inner wall of the opening of the fixed base (28). An oil storage bottle (29) is inserted into the opening of the fixed base (28). One end of the oil drain pipe (26) is connected to the bottom surface of the oil storage bottle (29). A manual valve is provided in the middle section of the oil drain pipe (26). A screw cap (210) is threadedly connected to the top of the oil storage bottle (29).

3. A push rod motor according to claim 2, characterized in that: The sealing part includes a sealing cover (211) hinged to one side of the concave cover (21), which controls the opening and closing of the oil guide slide (22) and the oil outlet (23) by flipping. One side of the sealing cover (211) has an overlapping member (212), and a fastener (213) is threaded onto the overlapping member (212). A threaded hole is opened on the upper surface of one side of the concave cover (21). A sealing strip is provided at the contact position between the sealing cover (211) and the concave cover (21) and the oil collection box (24).

4. A push rod motor according to claim 3, characterized in that: The pressurization unit includes an airbag (31) disposed on one side of the mounting box (27). The airbag (31) has a pipe (32) that passes through the mounting box (27) and extends into the opening of the mounting box (27). One end of the pipe (32) is connected to the screw cap (210) via a hose (33). The pipe (32) is used to deliver the air pressure generated by the airbag (31) to the oil storage bottle (29).

5. A push rod motor according to claim 4, characterized in that: The pipe clamp includes two sets of interlocking arc-shaped clamping parts (34). One end of each set of clamping parts (34) is fixed with a mating piece (35) that fits against each other. The clamping part (34) at the lower end has a snap-fit ​​shaft (36) hinged on the mating piece (35). The clamping part (34) at the upper end has a corresponding notch groove on the mating piece (35). The snap-fit ​​shaft (36) is threaded with a locking member (37).

6. A push rod motor according to claim 5, characterized in that: Silicone anti-slip pads are provided at the contact positions between the two sets of clamping parts (34) and the pipe (32). The silicone anti-slip pads increase the friction between the clamping parts (34) and the pipe (32). The lower clamping part (34) is connected to the bottom surface of the mounting box (27) through a support rod (38). A one-way valve (39) that only allows air to be charged into the pipe (32) is connected to the surface of the pipe (32).

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