An automatic lubrication control integrated ball screw transmission module
Patent Information
- Application Number
- CN202610998670.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-06
- Publication Date
- 2026-08-18
AI Technical Summary
[0003]但在模组连续高速运转过程中,润滑液不可避免地产生流失,影响模组的定位精度和服役寿命
[0013] The beneficial effects of this invention are as follows: This invention monitors the friction between the lead screw and the nut seat in real time through a torque sensor, and combines a control tube, pressure ball, and liquid reservoir to form an automatic feedback structure, realizing the autonomous replenishment of lubricating fluid on demand, accurately, and in a timely manner; therefore, this invention can significantly reduce the frequency of downtime and manual maintenance costs, while ensuring the continuous stability of the oil film on the raceway under high-speed operation, significantly improving the operational reliability and overall service life of this invention.
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Figure CN122589957A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ball screw drive module technology, and more particularly to an integrated ball screw drive module with automated lubrication control. Background Technology
[0002] Ball screw drive modules are linear drive components widely used in CNC machine tools and precision measurement platforms. Their basic structure includes a lead screw, a nut seat fitted to the lead screw, and several circulating balls embedded between the helical raceways of the two. When the lead screw is driven to rotate by a servo motor, the nut seat converts the rotational motion into high-precision linear displacement through the rolling motion of the balls in the helical raceways. By replacing the sliding contact surface in traditional sliding lead screws with balls, the friction mode is changed from sliding friction to rolling friction, which significantly reduces the coefficient of friction between the lead screw and the nut seat, thereby reducing motion resistance. Furthermore, the structure injects lubricant into the helical raceways, forming a stable elastic hydrodynamic oil film, further reducing the direct metal-to-metal contact between the balls and the raceways, thus effectively suppressing frictional heat generation, extending fatigue life, and supporting higher rotational speeds and faster feed rates.
[0003] However, during continuous high-speed operation of the module, lubricant loss is inevitable, affecting the module's positioning accuracy and service life. Currently, lubricant is mainly replenished manually at regular intervals. Obviously, this method reduces the overall efficiency of the equipment and increases labor costs. Furthermore, since the actual lubrication consumption rate is strongly correlated with operating conditions such as load, speed, and ambient temperature, a fixed cycle cannot accurately match actual needs, easily leading to either "excessive lubrication" or "insufficient lubrication." Summary of the Invention
[0004] In view of the deficiencies of the prior art pointed out in the background, the present invention provides an automated lubrication control integrated ball screw transmission module with automatic fluid replenishment function, in order to eliminate the dependence on manual periodic maintenance and realize the autonomous replenishment of lubricant on demand, in a quantitative and timely manner, thereby ensuring the efficient and reliable operation of the present invention within the cycle.
[0005] The technical solution is as follows: an automated lubrication control integrated ball screw transmission module, comprising: a screw, a nut seat, balls, and a mounting base; the screw passes through the mounting base and the nut seat, the nut seat is fixedly connected inside the mounting base, and the balls are embedded in the helical raceway between the nut seat and the screw; the module further comprises: a liquid reservoir, fixedly connected inside the mounting base, for storing lubricating fluid; a filling pipe, fixedly connected to the top of the liquid reservoir and communicating with the inside of the liquid reservoir, for replenishing lubricating fluid into the liquid reservoir; and two sets of outlet pipes, symmetrically fixedly connected to... The bottom of the liquid storage tank is connected to the liquid storage tank, and the outlet pipe faces downwards and is directly opposite the spiral raceway on the lead screw; the control pipe is slidably connected to the outside of the outlet pipe, and its bottom inner diameter gradually decreases from top to bottom; the pressure ball is movably located at the outlet of the control pipe, and its diameter is larger than the minimum inner diameter of the control pipe; the control component is located in the mounting base and connected to the control pipe, and is used to drive the control pipe to move axially; the torque sensor is located on the lead screw, and is used to detect the mating friction force between the lead screw and the nut seat, and is connected to the control component via the control module.
[0006] As an improvement to the above solution, the control component includes: a mounting bracket, fixedly connected to the outer periphery of the outlet pipe; hinge shafts, respectively disposed on the mounting bracket and the control pipe; wherein, the hinge shafts on the mounting bracket are slidably connected to the mounting bracket and symmetrically distributed on both sides of the mounting bracket; the hinge shafts disposed on the control pipe correspond one-to-one with the hinge shafts on the mounting bracket and are fixedly connected to the control pipe; a hinge arm, hinged between the corresponding hinge shafts of the mounting bracket and the hinge shafts of the control pipe; a screw, rotatably connected to both sides of the mounting bracket and threadedly engaged with the hinge shafts on the mounting bracket; a first motor, fixedly connected to the mounting bracket and fixedly connected to one end of the screw shaft; and a first transmission pulley set disposed between the two screws.
[0007] As an improvement to the above solution, the module further includes: a bracket, which is fixedly connected inside the control tube; a bearing, which is slidably connected to the bracket, with its lower surface in contact with the surface of the pressure bead; and a pressure spring, which is sleeved on the bearing, with one end fixedly connected to the bearing and the other end fixedly connected to the bracket.
[0008] As an improvement to the above solution, the module further includes: a connecting frame, which is fixedly connected to the mounting base; and a float, which is slidably connected to the liquid storage tank. The float's material density is less than that of the lubricating fluid, and the end of the float extends from the side wall of the liquid storage tank and forms a sliding fit with the connecting frame.
[0009] As an improvement to the above solution, the module further includes: a terminal, which is fixedly connected to the top of the float, and pole pieces are correspondingly arranged on both sides of the connecting frame. The pole pieces are connected to an external warning circuit, and the circuit is turned on when the terminal of the float comes into contact with the pole pieces on both sides.
[0010] As an improvement to the above solution, the mounting base is provided with an air passage, which is arranged around the nut seat and has two ventilation ports, one above the other. The module also includes: a mounting frame, which is fixedly connected to the mounting base and located at the upper port of the air passage; at least two sets of impellers, which are rotatably connected to the mounting frame and can rotate under drive to generate forced airflow; a second motor, which is fixedly connected to the mounting frame; a transmission gear set, which is located between the output end of the second motor and one of the impellers; and a second transmission pulley set, which is located between two adjacent impellers.
[0011] As an improvement to the above solution, the module further includes: a first filter screen, fixedly connected to the top of the impeller; and a second filter screen, fixedly connected to the lower port of the air passage.
[0012] As an improvement to the above solution, the module further includes: a connecting frame, which is fixedly connected to both sides of the mounting base, and the lead screw passes through the connecting frame; and a cleaning brush, which is detachably fixedly connected to the inner ring of the connecting frame, with its bristles contacting the outer surface of the lead screw.
[0013] The beneficial effects of this invention are as follows: This invention monitors the friction between the lead screw and the nut seat in real time through a torque sensor, and combines a control tube, pressure ball, and liquid reservoir to form an automatic feedback structure, realizing the autonomous replenishment of lubricating fluid on demand, accurately, and in a timely manner; therefore, this invention can significantly reduce the frequency of downtime and manual maintenance costs, while ensuring the continuous stability of the oil film on the raceway under high-speed operation, significantly improving the operational reliability and overall service life of this invention.
[0014] The control components in this invention enable smooth linear reciprocating motion of the control tube, reducing the possibility of off-center loading or radial jamming during tube movement and significantly improving the repeatability and long-term reliability of the liquid supply function's start / stop. Simultaneously, the threaded engagement between the screw and the hinge shaft possesses self-locking characteristics, maintaining the control tube's current position after the first motor is de-energized. This allows for liquid supply or shutdown without continuous power supply, reducing structural energy consumption and enhancing anti-interference capabilities.
[0015] This invention applies a squeezing force between the pressure ball and the spiral raceway through a shaft-supporting structure, enabling the pressure ball to rotate. This ensures that the lubricant is continuously and stably delivered from the inner cavity of the control tube, significantly improving the uniformity of lubricant addition, the smoothness of fluid discharge, and the continuity of the lubricating film coverage.
[0016] This invention utilizes a mechanical-electric linkage liquid level detection function composed of a float, terminals, and connecting frame electrodes to achieve both real-time visual feedback of lubricant level and automatic low-level alarm. It retains an intuitive visual judgment method while providing remote early warning capability via electrical signals, thus building a safety barrier for the automatic liquid replenishment function of this invention and further improving the complete functionality of this invention.
[0017] This invention utilizes an air passage surrounding the nut seat and a dual-impeller forced air delivery structure to actively cool the working environment of the lead screw, thereby suppressing temperature rise and buildup during high-speed operation. This ensures that the lubricant maintains stable viscosity and lubrication performance within a suitable temperature range, extending its service life. Furthermore, a first and second filter screen are used to block the entry of impurities, preventing air passage blockage and improving long-term operational reliability and maintenance-free operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 This is a partial cross-sectional view of the internal structure of the mounting base and nut seat in this invention.
[0020] Figure 3 This is a schematic diagram of the positional structure of the control tube and the lead screw in this invention.
[0021] Figure 4 This is a diagram showing the separation of the connection structure of the liquid outlet pipe, control pipe, and control component in this invention.
[0022] Figure 5 This is a cross-sectional view of the positional structure of the abutment shaft and pressure ball within the control tube in this invention.
[0023] Figure 6 This is a cross-sectional view of the connection structure of the float in this invention.
[0024] Figure 7 This is a cross-sectional view of the connection structure between the impeller and the cleaning brush in this invention.
[0025] The labels in the diagram are as follows: 101, lead screw; 102, nut seat; 103, ball bearing; 104, mounting base; 105, liquid storage tank; 106, filling pipe; 107, discharging pipe; 108, control pipe; 109, pressure ball; 201, mounting bracket; 202, hinge shaft; 203, hinge arm; 204, screw; 205, first motor; 206, first transmission pulley assembly; 301, bracket; 302, abutment shaft; 303, pressure spring; 401, connecting frame; 402, float; 403, terminal; 501, air passage; 502, mounting frame; 503, impeller; 504, second motor; 505, transmission gear set; 506, second transmission pulley assembly; 507, first filter screen; 508, second filter screen; 601, connecting frame; 602, cleaning brush. Detailed Implementation
[0026] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.
[0027] Example: An integrated ball screw drive module for automated lubrication control, combined with... Figures 1-4 As shown, this module is installed in the target device to provide stable reciprocating linear movement. The module includes: a lead screw 101, rotatably mounted in the target device and fixedly connected to the drive structure of the target device, and driven by the drive structure to rotate at high speed; a mounting base 104, slidably mounted in the target device, on which the target object to be displaced is fixedly mounted, with the lead screw 101 passing through the mounting base 104; and a nut seat 102, fixedly mounted inside the mounting base 104, with the lead screw 101 passing through the nut seat. 102 is configured; ball bearings 103 are embedded in the helical raceway between the nut seat 102 and the lead screw 101. The high-speed rotating lead screw 101 forms a rolling engagement with the nut seat 102 through the ball bearings 103, thereby driving the nut seat 102 to move the mounting base 104 reciprocally together; this module also includes: a liquid storage tank 105, fixedly installed inside the mounting base 104, for storing lubricating fluid; and a filling pipe 106, fixedly installed on the top of the liquid storage tank 105 and communicating with the inside of the liquid storage tank 105, for supplying lubricating fluid to the liquid storage tank 104. 5. Internal lubricant replenishment; two sets of outlet pipes 107 are symmetrically fixedly installed at the bottom of the liquid storage tank 105 and communicate with the liquid storage tank 105. The outlet pipes 107 face downwards and are directly opposite the spiral raceway on the lead screw 101; a control pipe 108 is slidably installed outside the outlet pipes 107, and its bottom inner diameter gradually decreases from top to bottom; a pressure ball 109 is movably installed at the outlet of the control pipe 108, and its diameter is larger than the minimum inner diameter of the control pipe 108; a control component is located in the mounting base 104 and connected to the control pipe 108. The control tube 108 is used to move axially. A torque sensor is installed on the lead screw 101 to detect the frictional force between the lead screw 101 and the nut seat 102. It is connected to the control component via the control module to form a feedback mechanism to achieve positive control drive for the control tube 108. Specifically, a magnetoelectric torque sensor is used, which is connected in series between the lead screw 101 and the drive structure of the target device. The frictional state between the lead screw 101 and the nut seat 102 is calculated by detecting the torque change when the lead screw 101 rotates.
[0028] This module is installed in the target device, where the lead screw 101 is connected to the drive structure of the target device, and the target object to be driven is fixed on the mounting base 104. Sufficient lubricant is injected into the storage tank 105 through the filling pipe 106. Before activation, the control component drives the control pipe 108 to move downward, so that the pressure ball 109 contacts the spiral raceway of the lead screw 101. Then the control pipe 108 continues to move downward, forcing the pressure ball 109 to retract upward relative to the control pipe 108. However, the pressure ball 109 is not completely retracted into the control pipe 108 and remains in contact with the spiral raceway. At this time, the lubricant in the storage tank 105 can be smoothly added to the spiral raceway through the outlet pipe 107 and the gap between the pressure ball 109 and the inner wall of the control pipe 108.
[0029] Next, the drive mechanism is activated, driving the lead screw 101 to rotate in both directions. The lead screw 101, through the ball bearings 103, engages with the nut seat 102 via a helical transmission, thereby stably driving the nut seat 102, the mounting base 104, and the target object fixed on the mounting base 104 to perform reciprocating linear displacement. During this process, the outlet pipe 107 and the control pipe 108 move synchronously with the mounting base 104, continuously replenishing lubricating fluid to the entire helical raceway of the lead screw 101. When the torque sensor detects that the friction of the lead screw 101 has decreased to the target threshold, the feedback control component is activated, driving the control pipe 108 to move upward, causing its bottom end to disengage from the helical raceway of the lead screw 101. At this time, the pressure ball 109 loses the squeezing effect of the raceway and, under the combined action of the hydraulic pressure of the lubricating fluid in the control pipe 108 and its own gravity, falls back down and seals the opening of the control pipe 108, stopping the addition of lubricating fluid.
[0030] As the lubricant continues to be consumed, the friction between the lead screw 101 and the nut seat 102 increases again. When the torque sensor detects that the friction has increased to the target threshold, the control component again moves the control tube 108 downward to resume adding lubricant to the helical raceway. This cycle repeats, thus achieving automatic on-demand replenishment of lubricant and ensuring the safe and stable long-term operation of this module.
[0031] This module uses a torque sensor to monitor the friction between the lead screw 101 and the nut seat 102 in real time. Combined with the control tube 108, pressure ball 109, and liquid reservoir 105, it forms an automatic feedback structure, thereby enabling the autonomous replenishment of lubricating fluid on demand, accurately, and in a timely manner. Therefore, this module can significantly reduce the frequency of downtime and manual maintenance costs, while ensuring the continuous stability of the oil film on the raceway under high-speed operation, significantly improving the operational reliability and overall service life of this module.
[0032] Combination Figures 3-4As shown, the control assembly includes: a mounting bracket 201, fixedly mounted on the outer periphery of the outlet pipe 107; hinge shafts 202, respectively disposed on the mounting bracket 201 and the control pipe 108; wherein, the hinge shafts 202 on the mounting bracket 201 are slidably connected to the mounting bracket 201 and symmetrically distributed on both sides of the mounting bracket 201, with two on each side; the hinge shafts 202 disposed on the control pipe 108 correspond one-to-one with the hinge shafts 202 on the mounting bracket 201 and are fixedly connected to the control pipe 108; a hinge arm 203, hinged between the corresponding hinge shafts 202 of the mounting bracket 201 and the hinge shafts 202 of the control pipe 108, and the control pipe 108 can be axially moved relative to the outlet pipe 107 by the rotation and swing of the hinge arm 203; and a screw 204, rotatably mounted on the mounting bracket 201. The screw 204 has two sides and is threadedly engaged with the hinge shaft 202 on the mounting bracket 201. Specifically, it is a bidirectional screw with opposite directions of rotation of the threads on both sides, and the threads at both ends of each screw 204 are threadedly engaged with the two hinge shafts 202 on the same side, so as to drive the two hinge shafts 202 on the same side to move synchronously in opposite directions, thereby causing each hinge arm 203 to rotate symmetrically, and thus driving the control tube 108 to move smoothly. The first motor 205 is fixedly installed on the mounting bracket 201 and is fixedly connected to the shaft end of one of the screws 204, serving as the active power source. The first transmission pulley group 206 is located between the two screws 204, with its two transmission pulleys fixed to the shaft ends of the two screws 204 respectively, and the transmission belt is wound between the two transmission pulleys to transmit synchronous rotation driving force between the two screws 204.
[0033] The first motor 205 starts, driving a screw 204 directly connected to it to rotate. This screw 204 drives another screw 204 to rotate synchronously in the same direction via the first transmission pulley set 206. This causes the hinge shafts 202 of the two mounting brackets 201 on the same side to move closer or further apart along the sliding direction, with both hinge shafts 202 moving synchronously. Then, since the position of the hinge shafts 202 on the control tube 108 is relatively fixed, the moving hinge shafts 202 will cause a change in the tilt angle of the hinge arm 203, thereby pushing the control tube 108 downwards or upwards relative to the fixed outlet tube 107. Specifically, when the two hinge shafts 202 on the same side approach each other, the angle of the hinge arm 203 increases, driving the control tube 108 to move downward, causing the pressure ball 109 to contact the spiral raceway and open the liquid supply channel; when the two hinge shafts 202 on the same side move away from each other, the angle of the hinge arm 203 decreases, pulling the control tube 108 upward, causing the pressure ball 109 to disengage from the raceway and re-seal the pipe opening, stopping the liquid supply. In this way, by rotating the first motor 205 in both directions, the axial position of the control tube 108 can be precisely switched, achieving rapid and reliable control of lubricant filling and stopping.
[0034] The control components ensure smooth linear reciprocating motion of the control tube 108, reducing the possibility of off-center loading or radial jamming during its movement and significantly improving the repeatability and long-term reliability of the liquid supply function's start and stop. Simultaneously, the threaded engagement between the screw 204 and the hinge shaft 202 has a self-locking characteristic, maintaining the current position of the control tube 108 after the first motor 205 is de-energized. This allows for liquid supply or shutdown without continuous power supply, reducing structural energy consumption and enhancing anti-interference capabilities.
[0035] Combination Figures 4-5 As shown, this module also includes: a bracket 301, which is fixedly installed inside the control tube 108; a bearing 302, which is slidably installed on the bracket 301, with its lower surface in contact with the surface of the pressure bead 109; and a pressure spring 303, which is sleeved on the bearing 302, with one end fixedly connected to the bearing 302 and the other end fixedly connected to the bracket 301.
[0036] When the control tube 108 moves downward and partially retracts the pressure ball 109 into its interior, the upper end of the pressure ball 109 presses against the abutment shaft 302, forcing the abutment shaft 302 to slide upward relative to the support 301. Simultaneously, the pressure spring 303 is compressed and stores energy, and its elastic restoring force is transmitted in the opposite direction to the pressure ball 109 through the abutment shaft 302, ensuring that the pressure ball 109 maintains a constant contact pressure on the spiral raceway throughout the entire working process. Therefore, during operation, the lead screw 101 continuously rotates, and the pressure force between the pressure ball 109 and the spiral raceway allows the pressure ball 109 to rotate, ensuring that the lubricant is continuously and stably delivered from the inner cavity of the control tube 108, significantly improving the uniformity of lubricant addition, the smoothness of fluid discharge, and the continuity of the lubricating film coverage.
[0037] Combination Figure 2 and Figure 6 As shown, this module also includes: a connecting frame 401, which is fixedly installed in the mounting base 104; a float 402, which is slidably installed in the liquid storage tank 105, and whose material density is less than that of the lubricating fluid, so that it can float freely on the surface of the lubricating fluid. The end of the float 402 extends out from the side wall of the liquid storage tank 105 and forms a sliding fit with the connecting frame 401, and slides up and down along the connecting frame 401 as the liquid level rises and falls; a terminal 403, which is fixedly installed on the top of the float 402. The connecting frame 401 has corresponding electrode plates on both sides, which are connected to the external warning circuit. When the float 402 slides to the point where the terminal 403 contacts the electrode plates on both sides, the circuit is connected.
[0038] During normal operation of the module, the lubricant in the reservoir 105 gradually decreases due to continuous consumption, causing the liquid level to drop. The float 402, under its own gravity, moves synchronously downwards with the liquid level. On one hand, the operator can visually observe the scale position of the float 402 relative to the connecting frame 401 to quickly and intuitively determine the remaining lubricant level, allowing for timely manual replenishment. On the other hand, when the lubricant is consumed to the set minimum safe level, the float 402 will slide to the position where the terminal 403 contacts the electrodes on both sides of the connecting frame 401, activating the external warning circuit and generating an electrical signal. This signal can be transmitted to the audible and visual alarm, control panel indicator light, or remote monitoring terminal connected to the warning circuit, proactively prompting the operator to add lubricant in a timely manner. This eliminates the need for frequent manual inspections or reliance on experience, further enhancing the module's intelligence and ease of use.
[0039] This module utilizes a mechanical-electric linkage liquid level detection function composed of float 402, terminal 403, and connecting bracket 401 to achieve real-time visual feedback of lubricant level and automatic low-level alarm. It retains an intuitive visual judgment method while providing remote early warning capability via electrical signals, thus building a safety barrier for the module's automatic liquid replenishment function and further improving the module's complete functionality.
[0040] Combination Figure 1 , Figure 2 and Figure 7 As shown, the mounting base 104 has an air passage 501 inside, which surrounds the nut seat 102 and has upper and lower air vents. This module also includes: a mounting frame 502, fixedly mounted on the mounting base 104 and located at the upper port of the air passage 501; two sets of impellers 503, rotatably mounted on the mounting frame 502, which can rotate under drive to generate forced airflow; a second motor 504, fixedly mounted on the mounting frame 502, serving as a rotational power source; and a transmission gear set 505, located between the output end of the second motor 504 and one of the impellers 503, used to transmit rotational driving force. Specifically, the transmission gear set 505 includes a meshing gear and a gear ring, the gear ring being fixed to the impeller. The gear is fixed to the output shaft of the second motor 504 on the outer periphery of the impeller 503; the second transmission pulley group 506 is disposed between the two impellers 503, and its two transmission pulleys are respectively fixed to the outer periphery of the two impellers 503, and the transmission belt is wound between the two transmission pulleys to realize the synchronous rotation transmission of the impellers 503; in this embodiment, the gear ring in the transmission gear group 505 and the transmission pulley in the second transmission pulley group 506 adopt an integrated structure to achieve a reasonable spatial layout; the first filter screen 507 is fixedly installed on the top of the impeller 503 to filter the air entering the air passage 501; the second filter screen 508 is fixedly installed at the lower port of the air passage 501 to prevent external impurities from entering the interior of the air passage 501 from the lower port.
[0041] During the long-term high-speed reciprocating operation of the module, the continuous rolling friction between the ball bearings 103 and the spiral raceways of the lead screw 101 and nut seat 102 will generate significant temperature rise. Excessive temperature not only affects the structural safety between the lead screw 101 and nut seat 102, but also accelerates the oxidation and deterioration of the lubricant, reduces oil film strength, and weakens the lubricating effect. Therefore, this module employs an active air-cooling structure for thermal management: when the second motor 504 starts, it drives the first impeller 503 to rotate via the transmission gear set 505; this impeller 503 then synchronously transmits the rotational power to the second impeller 503 via the second transmission pulley set 506. The impeller 503 continuously rotates, generating directional negative pressure within the air passage 501. This forces external cold air to be drawn in from the upper port of the air passage 501, flows through the annular air passage 501 surrounding the nut seat 102, and is then discharged from the lower port. During this process, the cold air undergoes forced convection heat exchange with the nut seat 102 and the ball bearing 103 area, effectively removing the accumulated heat generated during operation and ensuring that the screw 101 operates within a suitable working temperature range. Simultaneously, the first filter 507 and the second filter 508 ensure that the air passage 501 remains unobstructed for extended periods, preventing airflow attenuation or cooling efficiency reduction due to impurity deposition, and guaranteeing the continuous effectiveness of the air-cooling function.
[0042] This module utilizes an air passage 501 surrounding the nut seat 102 and a forced air delivery structure with dual impellers 503 to actively cool the operating environment of the lead screw 101, thereby suppressing temperature rise and accumulation under high-speed motion. This ensures that the lubricant maintains stable viscosity and lubrication performance within a suitable temperature range, extending its service life. Furthermore, a first filter 507 and a second filter 508 are used to block the entry of impurities, preventing blockage of the air passage 501 and improving long-term operational reliability and maintenance-free operation.
[0043] Combination Figure 1 and Figure 7 As shown, this module also includes: a connecting frame 601, fixedly installed on both sides of the mounting base 104, with the lead screw 101 passing through the connecting frame 601; and a cleaning brush 602, detachably fixedly installed on the inner ring of the connecting frame 601, with its bristles contacting the outer surface of the lead screw 101 to continuously scrape away dust and impurities adhering to the surface of the lead screw 101 during rotation, preventing impurities from mixing with lubricant and aggravating abrasive wear between the balls 103 and the raceway. The detachable connection between the cleaning brush 602 and the connecting frame 601 can be achieved through convenient methods such as plug-in, snap-fit, or adhesive fixing. After a period of use, the operator can easily remove the cleaning brush 602 from the connecting frame 601 for cleaning or direct replacement with a new brush, thereby restoring its cleaning efficiency and ensuring stable and reliable cleaning results during long-term use.
[0044] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. An automated lubrication control integrated ball screw transmission module, comprising: The module comprises a lead screw (101), a nut seat (102), a ball bearing (103), and a mounting base (104); the lead screw (101) passes through the mounting base (104) and the nut seat (102), the nut seat (102) is fixedly connected to the mounting base (104), and the ball bearing (103) is embedded in the spiral raceway between the nut seat (102) and the lead screw (101); characterized in that the module further comprises: a liquid storage tank (105), fixedly connected to the inside of the mounting base (104), for storing lubricating fluid; a filling pipe (106), fixedly connected to the top of the liquid storage tank (105) and communicating with the inside of the liquid storage tank (105), for replenishing lubricating fluid into the liquid storage tank (105); and two sets of outlet pipes (107), symmetrically fixedly connected to the liquid storage tank. The bottom of the storage tank (105) is connected to the liquid storage tank (105), and the outlet of the liquid outlet pipe (107) faces downward and is directly opposite the spiral raceway on the screw (101); the control pipe (108) is slidably connected to the outside of the liquid outlet pipe (107), and its bottom inner diameter is gradually reduced from top to bottom; the pressure ball (109) is movably located at the outlet of the control pipe (108), and its diameter is larger than the minimum inner diameter of the control pipe (108); the control component is located in the mounting base (104) and connected to the control pipe (108), and is used to drive the control pipe (108) to move axially; the torque sensor is located on the screw (101) and is used to detect the mating friction force between the screw (101) and the nut seat (102), and is connected to the control component signal through the control module.
2. The automated lubrication control integrated ball screw transmission module as described in claim 1, characterized in that, The control assembly includes: a mounting bracket (201) fixedly connected to the outer periphery of the outlet pipe (107); and hinge shafts (202) respectively disposed on the mounting bracket (201) and the control pipe (108); wherein the hinge shafts (202) on the mounting bracket (201) are slidably connected to the mounting bracket (201) and symmetrically distributed on both sides of the mounting bracket (201); the hinge shafts (202) disposed on the control pipe (108) correspond one-to-one with the hinge shafts (202) on the mounting bracket (201) and are fixedly connected to the control pipe (108). Connect; hinge arm (203), hinged between the hinge shaft (202) of the corresponding mounting bracket (201) and the hinge shaft (202) of the control tube (108); screw (204), rotatably connected to both sides of the mounting bracket (201), and threadedly engaged with the hinge shaft (202) on the mounting bracket (201); first motor (205), fixedly connected to the mounting bracket (201), and fixedly connected to the shaft end of one of the screws (204); first transmission pulley group (206), located between the two screws (204).
3. The automated lubrication control integrated ball screw transmission module as described in claim 2, characterized in that, The module further includes: a bracket (301), which is fixedly connected to the control tube (108); a bearing (302), which is slidably connected to the bracket (301), and its lower surface is in contact with the surface of the pressure bead (109); and a pressure spring (303), which is sleeved on the bearing (302), with one end fixedly connected to the bearing (302) and the other end fixedly connected to the bracket (301).
4. The automated lubrication control integrated ball screw transmission module as described in claim 3, characterized in that, The module further includes: a connecting frame (401), which is fixedly connected to the mounting base (104); and a float (402), which is slidably connected to the liquid storage tank (105). The float's material density is less than that of the lubricating fluid. The end of the float (402) extends from the side wall of the liquid storage tank (105) and forms a sliding fit with the connecting frame (401).
5. The automated lubrication control integrated ball screw transmission module as described in claim 4, characterized in that, The module also includes: a terminal (403) fixedly connected to the top of the float (402), and pole pieces corresponding to both sides of the connecting frame (401). The pole pieces are connected to an external warning circuit, and the circuit is turned on when the terminal (403) of the float (402) comes into contact with the pole pieces on both sides.
6. The automated lubrication control integrated ball screw transmission module as described in claim 5, characterized in that, The mounting base (104) is provided with an air passage (501) inside. The air passage (501) is arranged around the nut seat (102) and has two ventilation ports, one above and one below. The module also includes: a mounting frame (502), which is fixedly connected to the mounting base (104) and located at the upper port of the air passage (501); at least two sets of impellers (503), which are rotatably connected to the mounting frame (502) and can be rotated under drive to generate forced airflow; a second motor (504), which is fixedly connected to the mounting frame (502); a transmission gear set (505), which is located between the output end of the second motor (504) and one of the impellers (503); and a second transmission pulley set (506), which is located between two adjacent impellers (503).
7. The automated lubrication control integrated ball screw transmission module as described in claim 6, characterized in that, The module further includes: a first filter (507), which is fixedly connected to the top of the impeller (503); and a second filter (508), which is fixedly connected to the lower port of the air passage (501).
8. The automated lubrication control integrated ball screw transmission module as described in claim 7, characterized in that, The module further includes: a connecting frame (601), which is fixedly connected to both sides of the mounting base (104), and a lead screw (101) passing through the connecting frame (601); and a cleaning brush (602), which is detachably fixedly connected to the inner ring of the connecting frame (601), and whose bristles are in contact with the outer surface of the lead screw (101).