Bearing screw rod cooling system structure

By designing a bearing screw cooling system, using high-pressure oil pipes to circulate cooling oil and combining it with an oil cooler for cooling, the problem of unstable screw and bearing temperatures is solved, and the service life and accuracy of the equipment are improved.

CN223424570UActive Publication Date: 2025-10-10DONGGUAN SUNSHINE PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202423251900.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-10-10
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The existing cooling system cannot effectively maintain the temperature stability of the screw, bearing seat and motor seat, resulting in a shortened service life of the screw and bearings, affecting the use effect of the equipment.

Method used

A bearing screw cooling system was designed, which circulated cooling oil to the screw, screw tail bearing seat and motor seat through a high-pressure oil pipe to achieve stable temperature control. The cooling oil was cooled by an oil cooler to ensure temperature stability.

Benefits of technology

It effectively reduces the temperature changes of the screw and bearings caused by long-term operation, improves the accuracy and service life of the screw and bearings, and enhances the overall use effect of the equipment.

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Patent Text Reader

Abstract

The utility model relates to a bearing lead screw cooling system structure which comprises a motor base, a servo motor, a lead screw, a lead screw nut base, a lead screw nut and a lead screw tail end bearing base, the servo motor is fixedly installed on the outer wall of one side of the motor base, the lead screw is rotationally connected to the motor base, one end of an output shaft of the servo motor is fixedly connected to the outer wall of the lead screw, and the other end of the output shaft of the servo motor is fixedly connected to the bearing base. A lead screw nut seat is installed on the outer portion of one side of the motor seat, a lead screw nut is rotatably installed in the lead screw nut seat, and the interior of the lead screw nut is fixedly installed on the outer wall of the lead screw. The cooling system structure can keep the temperature of the screw rod, the bearing seat at the tail end of the screw rod and the motor seat stable, so that the temperature generated by long-time operation of the screw rod and the bearing is reduced, the precision change of the screw rod and the bearing caused by heating is reduced, the precision of the screw rod and the bearing can be ensured, and the service life of the screw rod is prolonged. Therefore, the service life of the lead screw and the bearing is prolonged, and the using effect of equipment is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to screw rod cooling technical field especially bearing screw rod cooling system structure. BACKGROUND

[0002] Ball screw is the ideal product of converting rotary motion into linear motion, or converting linear motion into rotary motion, and screw rod bearing is the bearing special for screw rod, belongs to the thrust angular contact bearing, has greater contact angle than general angular contact bearing, can bear greater axial force, and when the bearing cooperates with the screw rod, a lot of heat is generated, so that the cooling system structure is needed to cool the bearing screw rod, but the existing cooling system structure cannot ensure that the temperature of the screw rod, bearing seat and motor seat remains stable, and it is not easy to reduce the temperature generated by the long-time operation of the screw rod and bearing, so that the temperature affects the screw rod and bearing, thereby reducing the service life of the screw rod and bearing and reducing the use effect of the equipment. SUMMARY

[0003] The utility model provides bearing screw rod cooling system structure can keep the temperature of screw rod, screw rod tail end bearing seat and motor seat stable, thereby reducing the temperature generated by the long-time operation of the screw rod and bearing, reducing the change of the precision of the screw rod and bearing caused by heating, and ensuring the precision of the screw rod and bearing, thereby improving the service life of the screw rod and bearing and improving the use effect of the equipment.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: bearing screw rod cooling system structure, including motor seat, servo motor, screw rod, screw rod nut seat, screw rod nut and screw rod tail end bearing seat, the one side outer wall of motor seat is fixedly installed with servo motor, the motor seat is rotatably connected with screw rod, and one end of the output shaft of servo motor is fixedly connected to the outer wall of screw rod, the one side outside of motor seat is installed with screw rod nut seat, the screw rod nut seat is rotatably installed with screw rod nut, and the screw rod nut is fixedly installed on the outer wall of screw rod in screw rod nut, the one side outside of screw rod nut seat is installed with screw rod tail end bearing seat, and the other end of screw rod is rotatably connected to the outer wall of screw rod tail end bearing seat.

[0005] Preferably, the one side outer wall of the screw rod tail end bearing seat is connected with a rotary joint, the outer wall of one end of the rotary joint is connected with an oil inlet pipe, the one side outer wall of the rotary joint is connected with a third high-pressure oil pipe, and the other end of the third high-pressure oil pipe is connected to the outer wall of the screw rod tail end bearing seat.

[0006] Preferably, the one side outer wall of the screw rod tail end bearing seat is connected with a second high-pressure oil pipe, and the other end of the second high-pressure oil pipe is connected with the outer wall of the motor seat, and the one side outer wall of the motor seat is connected with a first high-pressure oil pipe.

[0007] Preferably, bolt connection holes are distributed at the bottom ends of the motor seat, the screw nut seat and the screw tail end bearing seat.

[0008] The beneficial effects of the present invention are: it can maintain the temperature stability of the screw rod, the bearing seat at the tail end of the screw rod and the motor seat, thereby reducing the temperature generated by the long-term operation of the screw rod and the bearing, thereby reducing the changes in the accuracy of the screw rod and the bearing caused by heat, and can also ensure the accuracy of the screw rod and the bearing, thereby increasing the service life of the screw rod and the bearing, and improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the overall three-dimensional structural diagram of the utility model;

[0010] Figure 2 This is a bottom-up three-dimensional structural diagram of the present invention.

[0011] Legend:

[0012] 1. Motor base; 2. Servo motor; 3. First high-pressure oil pipe; 4. Second high-pressure oil pipe; 5. Screw; 6. Screw nut base; 7. Screw nut; 8. Screw tail end bearing base; 9. Oil inlet pipe; 10. Rotary joint; 11. Third high-pressure oil pipe. DETAILED DESCRIPTION

[0013] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] Specific examples are given below.

[0015] See also Figures 1 and 2The bearing screw cooling system structure includes a motor base 1, a servo motor 2, a screw 5, a screw nut base 6, a screw nut 7 and a screw tail end bearing base 8. The servo motor 2 is fixedly mounted on the outer wall of one side of the motor base 1. The motor base 1 is rotatably connected to the screw 5, and one end of the output shaft of the servo motor 2 is fixedly connected to the outer wall of the screw 5. A screw nut base 6 is installed on the outside of one side of the motor base 1. A screw nut 7 is rotatably installed in the screw nut base 6, and the screw nut 7 is fixedly mounted on the outer wall of the screw 5. On the outside of the screw nut seat 6, a screw tail end bearing seat 8 is installed, and the other end of the screw 5 is rotatably connected to the outer wall of the screw tail end bearing seat 8; a rotary joint 10 is connected to the outer wall of the screw tail end bearing seat 8, and an oil inlet pipe 9 is connected to the outer wall of one end of the rotary joint 10, and a third high-pressure oil pipe 11 is connected to the outer wall of one side of the rotary joint 10, and the other end of the third high-pressure oil pipe 11 is connected to the outer wall of the screw tail end bearing seat 8, through the rotary joint 10 The cooling oil is injected into the screw rod 5, circulated from the tail end of the screw rod 5 to the main end, and then injected into the bearing seat 8 at the tail end of the screw rod through the third high-pressure oil pipe 11 through the rotary joint 10, thereby cooling the temperature of the bearing seat 8 at the tail end of the screw rod; a second high-pressure oil pipe 4 is connected to the outer wall of the bearing seat 8 at the tail end of the screw rod, and the other end of the second high-pressure oil pipe 4 is connected to the outer wall of the motor seat 1, and a first high-pressure oil pipe 3 is connected to the outer wall of the motor seat 1 on one side. After circulation, it is injected into the bearing seat 8 at the tail end of the screw rod through the third high-pressure oil pipe 11 through the rotary joint 10, thereby cooling the temperature of the bearing seat 8 at the tail end of the screw rod; a second high-pressure oil pipe 4 is connected to the outer wall of the bearing seat 8 at the tail end of the screw rod, and the other end of the second high-pressure oil pipe 4 is connected to the outer wall of the motor seat 1, and the first high-pressure oil pipe 3 is connected to the outer wall of the motor seat 1 on one side. The pressure oil pipe 4 is injected into the motor base 1, and when it circulates in the motor base 1, it circulates again from the first high-pressure oil pipe 3 to the inside of the oil cooler, and then the cooling oil is cooled by the oil cooler; the bottom ends of the motor base 1, the screw nut seat 6 and the screw tail end bearing seat 8 are distributed with bolt connection holes, and the motor base 1, the screw nut seat 6 and the screw tail end bearing seat 8 are placed in the designated positions, so that the motor base 1, the screw nut seat 6 and the screw tail end bearing seat 8 can be fixed to the designated machine by screws.

[0016] Working principle: First, place the motor seat 1, the screw nut seat 6 and the screw tail end bearing seat 8 to the specified position, and then use screws to fix the motor seat 1, the screw nut seat 6 and the screw tail end bearing seat 8 to the specified machine. At this time, start the servo motor 2 on the motor seat 1 to rotate the screw 5 on the screw tail end bearing seat 8, and then rotate along the screw nut 7 on the screw nut seat 6. When the screw 5 rotates, a lot of heat will be generated on the motor seat 1, the screw nut seat 6 and the screw tail end bearing seat 8. At this time, the cooling oil will be cooled by the oil cooler, and the cooled cooling oil will enter the rotary joint 10 through the oil inlet pipe 9, and then the cooling oil will be injected into the screw 5 through the rotary joint 10. After circulating from the tail end of the screw 5 to the main end, it will be circulated through the rotary joint. The head 10 is injected from the third high-pressure oil pipe 11 into the bearing seat 8 at the tail end of the screw rod, thereby cooling the temperature of the bearing seat 8 at the tail end of the screw rod. After circulation, it is injected into the motor base 1 through the second high-pressure oil pipe 4. When circulating in the motor base 1, it is re-circulated from the first high-pressure oil pipe 3 to the inside of the oil cooler, and then the cooling oil is cooled by the oil cooler, so that the cooling oil is circulated again; the temperature of the screw rod 5, the bearing seat 8 at the tail end of the screw rod and the motor base 1 can be kept stable, thereby reducing the temperature generated by the long-term operation of the screw rod 5 and the bearing, thereby reducing the changes in the accuracy of the screw rod 5 and the bearing caused by heat, and can also ensure the accuracy of the screw rod 5 and the bearing, thereby increasing the service life of the screw rod 5 and the bearing, and improving the use effect of the equipment.

[0017] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Bearing screw cooling system structure, characterized by: The invention comprises a motor base (1), a servo motor (2), a screw rod (5), a screw rod nut base (6), a screw rod nut (7) and a screw rod tail end bearing base (8), wherein the servo motor (2) is fixedly mounted on an outer wall of one side of the motor base (1), the screw rod (5) is rotatably connected to the motor base (1), and one end of the output shaft of the servo motor (2) is fixedly connected to the outer wall of the screw rod (5), a screw rod nut base (6) is mounted on the outside of one side of the motor base (1), a screw rod nut (7) is rotatably mounted inside the screw rod nut base (6), and the screw rod nut (7) is fixedly mounted on the outer wall of the screw rod (5), a screw rod tail end bearing base (8) is mounted on the outside of one side of the screw rod nut base (6), and the other end of the screw rod (5) is rotatably connected to the outer wall of the screw rod tail end bearing base (8).

2. The bearing screw cooling system structure according to claim 1, characterized in that: A rotary joint (10) is connected through the outer wall of one side of the screw rod tail end bearing seat (8), an oil inlet pipe (9) is connected through the outer wall of one end of the rotary joint (10), a third high-pressure oil pipe (11) is connected through the outer wall of one side of the rotary joint (10), and the other end of the third high-pressure oil pipe (11) is connected through the outer wall of the screw rod tail end bearing seat (8).

3. The bearing screw cooling system structure according to claim 1, characterized in that: A second high-pressure oil pipe (4) is connected through one side outer wall of the screw rod tail end bearing seat (8), and the other end of the second high-pressure oil pipe (4) is connected through the outer wall of the motor seat (1), and a first high-pressure oil pipe (3) is connected through one side outer wall of the motor seat (1).

4. The bearing screw cooling system structure according to claim 1, characterized in that: Bolt connection holes are distributed at the bottom ends of the motor seat (1), the screw nut seat (6) and the screw tail end bearing seat (8).