Bidirectional threaded two-station ball screw
By designing a bidirectional threaded dual-station ball screw, the problems of low efficiency and poor compatibility of existing ball screw transmissions have been solved, resulting in improved stability and precision, enhanced equipment flexibility and functionality, simplified structure, and the ability to meet diverse work requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SHANGLONG AUTOMATION TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-06-23
Smart Images
Figure CN224397044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball screw technology, specifically a bidirectional threaded dual-station ball screw. Background Technology
[0002] Ball screws are ideal products for converting rotary motion into linear motion, or vice versa. They are the most commonly used sliding elements in machine tools and precision machinery. Their main function is to convert rotary motion into linear motion, or torque into reciprocating axial force, while also possessing high precision, reversibility, and high efficiency. Due to their very low frictional resistance, ball screws are widely used in various industrial equipment and precision instruments.
[0003] Currently, ball screws on the market all use a fixed path during transmission, which greatly reduces the transmission efficiency of ball screws, has poor compatibility, and is not conducive to development. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a bidirectional threaded dual-station ball screw, which solves the problem that current ball screws on the market all use a fixed path during transmission, greatly reducing the transmission efficiency of the ball screw, resulting in poor compatibility and hindering its development.
[0005] The technical solution adopted in this utility model is: a bidirectional threaded dual-station ball screw, including a worktable, a sliding element, a mounting element, a first screw assembly, and a second screw assembly; the sliding element is disposed on both sides of the worktable, and the first screw assembly and the second screw assembly are disposed opposite to each other on the worktable to drive the sliding element to move relative to each other; the two ends of the mounting element are mounted on the worktable, and the mounting element is used to mount the first screw assembly and the second screw assembly so that the first screw assembly and the second screw assembly can perform unified transmission on the worktable.
[0006] A further improvement to the above solution is that the worktable includes a first station and a second station, the first screw assembly is disposed at the first station, the second screw assembly is disposed at the second station, the first station and the second station are connected, and the mounting element is disposed between the first station and the second station. A further improvement to the above solution is that the first station includes a first limiting ring, a first drive platform, a first bearing, and a first auxiliary bearing; the first limiting ring is disposed at one end of the first drive platform, and the first bearing and the first auxiliary bearing are sequentially disposed at the other end of the first drive platform; the first drive platform has a first drive hole, one end of the first screw assembly movably passes through the first drive hole and is limited by the first limiting ring; the upper part of the first limiting ring is a plane, and the first limiting ring is disposed near the first drive platform in a first alignment hole, the first alignment hole being aligned with the first drive platform.
[0007] A further improvement to the above scheme is that the second station includes a second limiting ring, a second drive platform, a second bearing, and a second auxiliary bearing; the second limiting ring is disposed at one end of the second drive platform, and the second bearing and the second auxiliary bearing are sequentially disposed at the other end of the second drive platform; the second drive platform is provided with a second drive hole, and one end of the second screw assembly is movably inserted through the second drive hole and limited by the second limiting ring; the upper part of the second limiting ring is a plane, and the second limiting ring is disposed in a second alignment hole near the second drive platform, with the second alignment hole aligned with the second drive platform.
[0008] A further improvement to the above solution is that the sliding element includes a first sliding member and a second sliding member, the first sliding member being disposed at a first working position and the second sliding member being disposed at a second working position; the first sliding member slides at the first working position under the drive of the first screw, and the second sliding member slides at the second working position under the drive of the second screw.
[0009] A further improvement to the above solution is that the first sliding member includes a first sliding rod, a first sliding block, and a first transmission seat. The first sliding rod has first sliding grooves on both sides, and the first sliding block has first embedding blocks on both sides facing the first sliding grooves. One end of the first embedding block is movably disposed in the first sliding groove. The first transmission seat is disposed on the first screw assembly to mount the first screw assembly on the first sliding block. The first sliding block has a first oil injection element near the first screw assembly. The first oil injection element includes a first oil inlet and a first oil outlet, which are respectively disposed at both ends of the first sliding block.
[0010] A further improvement to the above solution is that the second sliding member includes a second sliding rod, a second sliding block, and a second transmission seat. The second sliding rod has second sliding grooves on both sides, and the second sliding block has second embedding blocks on both sides facing the second sliding grooves. One end of the second embedding block is movably disposed in the second sliding groove. The second transmission seat is disposed on the second screw assembly to mount the second screw assembly on the second sliding block. The second sliding block has a second oil injection element near the second screw assembly. The second oil injection element includes a second oil inlet and a second oil outlet, which are respectively disposed at both ends of the second sliding block.
[0011] A further improvement to the above solution is that the mounting element includes a mounting block, a first mounting ring, and a second mounting ring. The first mounting ring is disposed at one end of the mounting block near the first screw assembly, and the second mounting ring is disposed at the other end of the mounting block near the second screw assembly. The mounting block is provided with a mounting hole, and mounting threads are evenly distributed on the inner wall of the mounting hole. The first mounting ring and the second mounting ring are the same size as the slot of the mounting hole.
[0012] A further improvement to the above solution is that the first screw assembly includes a first screw and a first rolling element; the first screw includes a first driving end, a first transmission end and a first connecting end; the first driving end is disposed at the first work station, the first rolling element is sleeved on the first screw and is driven through the first transmission end, and one end of the first connecting end is connected to the second screw.
[0013] A further improvement to the above solution is that the second screw assembly includes a second screw and a second rolling element; the second screw includes a second driving end and a second transmission end; the second driving end is disposed at the second work station, and the second rolling element is sleeved on the second screw and driven through the second transmission end.
[0014] The beneficial effects of this utility model are:
[0015] Compared to existing ball screws, this invention provides stable support and smooth sliding conditions for the relative movement of the first and second screw assemblies by setting sliding elements on both sides of the worktable. This ensures precise movement of the screws during operation, reduces wobbling and deviation, and improves the overall stability and accuracy of the device. The relatively arranged first and second screw assemblies enable synchronous or asynchronous movement at two workstations, greatly increasing the flexibility and functionality of the equipment. It can simultaneously meet different work requirements or perform different operations on different workpieces, improving work efficiency. The mounting elements unify the installation and transmission of the first and second screw assemblies, ensuring the coordination and consistency of the two screw movements. This makes power transmission smoother and avoids work errors caused by inconsistent transmission. It also simplifies the overall structure, reduces additional transmission components, meets the stringent requirements for displacement accuracy under different working conditions, and is highly practical. Attached Figure Description
[0016] Figure 1 This is a top view of the bidirectional threaded dual-station ball screw of this utility model;
[0017] Figure 2 This is a left view of the bidirectional threaded dual-station ball screw of this utility model.
[0018] Figure 3 This is an exploded view of the bidirectional threaded dual-station ball screw of this utility model.
[0019] Explanation of reference numerals in the attached drawings: Worktable 10, First station 11, First limiting ring 112, First drive stage 113, First bearing 114, First auxiliary bearing 115, First drive hole 116, First alignment hole 117, Second station 12, Second limiting ring 121, Second drive stage 122, Second bearing 123, Second auxiliary bearing 124, Second drive hole 125, Second alignment hole 126;
[0020] Sliding element 20, first sliding member 21, first sliding rod 211, first slider 212, first transmission seat 213, first sliding groove 214, first embedded block 215, second sliding member 22, second sliding rod 221, second slider 223, second transmission seat 224, second sliding groove 225, second embedded block 226, second oil injection element 227, second oil inlet 228, second oil outlet 229;
[0021] Mounting element 30, mounting block 31, first mounting ring 32, second mounting ring 33
[0022] First screw assembly 40, first drive end 41, first transmission end 42, first rolling element 43, first connecting end 44;
[0023] Second screw assembly 50, second drive end 51, second transmission end 52, second rolling element 53. Detailed Implementation
[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0027] like Figure 1-3As shown in the embodiment of this utility model, a bidirectional threaded dual-station ball screw includes a worktable 10, a sliding element 20, a mounting element 30, a first screw assembly 40, and a second screw assembly 50. The sliding element 20 is disposed on both sides of the worktable 10, and the first screw assembly 40 and the second screw assembly 50 are disposed opposite each other on the worktable 10 to drive the sliding element 20 to move relative to each other. The two ends of the mounting element 30 are mounted on the worktable 10, and the mounting element 30 is used to mount the first screw assembly 40 and the second screw assembly 50 so that the first screw assembly 40 and the second screw assembly 50 can perform unified transmission on the worktable 10. In this embodiment, by setting sliding elements 20 on both sides of the worktable 10, stable support and smooth sliding conditions are provided for the relative movement of the first screw assembly 40 and the second screw assembly 50, ensuring that the screws can move accurately during operation, reducing shaking and deviation, and improving the operational stability and accuracy of the entire device. Through the relatively set first screw assembly 40 and second screw assembly 50, synchronous or asynchronous movement of the two workstations can be realized, greatly increasing the flexibility and functionality of the equipment. It can simultaneously meet different work requirements or perform different operations on different workpieces, improving work efficiency. The mounting element 30 uniformly installs and transmits the first screw assembly 40 and the second screw assembly 50, ensuring the coordination and consistency of the movement of the two screws. This makes the power transmission more stable, avoiding work errors caused by inconsistent transmission. It also simplifies the overall structure, reduces additional transmission components, meets the strict requirements for displacement accuracy under different working conditions, and is highly practical.
[0028] like Figure 1 As shown, the workbench 10 includes a first station 11 and a second station 12. The first screw assembly 40 is disposed on the first station 11, and the second screw assembly 50 is disposed on the second station 12. The first station 11 and the second station 12 are connected. The mounting element 30 is disposed between the first station 11 and the second station 12. In this embodiment, by using the first screw assembly 40 at the first station 11 and the second screw assembly 50 at the second station 12, different tasks can be performed simultaneously or separately, improving the working efficiency and flexibility of the workbench 10, optimizing space utilization, and reducing the overall size of the equipment. The bidirectional thread design enables the lead screw to achieve bidirectional transmission, meeting diverse work needs and further enhancing the functionality and practicality of the equipment. Figures 2 to 3As shown, the first station 11 includes a first limiting ring 112, a first drive platform 113, a first bearing 114, and a first auxiliary bearing 115. The first limiting ring 112 is disposed at one end of the first drive platform 113, and the first bearing 114 and the first auxiliary bearing 115 are disposed sequentially at the other end of the first drive platform 113. The first drive platform 113 is provided with a first drive hole 116, and one end of the first screw is movably inserted through the first drive hole 116 and limited by the first limiting ring 112. The upper part of the first limiting ring 112 is a plane, and the first limiting ring 112 is disposed in a first alignment hole 117 near the first drive platform 113, and the first alignment hole 117 is aligned with the first drive platform 113. In this embodiment, the first limiting ring 112 is set at one end of the first drive platform 113 to limit the first screw assembly 40 passing through the first drive hole 116, ensuring stable operation of the screw and preventing excessive axial displacement from affecting transmission accuracy. The first bearing 114 and the auxiliary bearing are sequentially set at the other end to provide reliable support for the screw, reduce vibration and noise during operation, and improve system stability. Furthermore, the upper plane of the first limiting ring 112 is conducive to the installation and positioning of equipment components. The first alignment hole 117 is aligned with the first drive platform 113, which helps to accurately assemble and ensure the accurate position of each component.
[0029] The second station 12 includes a second limiting ring 121, a second drive platform 122, a second bearing 123, and a second auxiliary bearing 124. The second limiting ring 121 is disposed at one end of the second drive platform 122, and the second bearing 123 and the second auxiliary bearing 124 are disposed sequentially at the other end of the second drive platform 122. The second drive platform 122 is provided with a second drive hole 125, and one end of the second screw is movably inserted through the second drive hole 125 and limited by the second limiting ring 121. The upper part of the second limiting ring 121 is a plane, and the second limiting ring 121 is disposed in a second alignment hole 126 near the second drive platform 122, and the second alignment hole 126 is aligned with the second drive platform 122. In this embodiment, the second limiting ring 121 is set at one end of the second drive platform 122, which can accurately limit the axial displacement of the second screw assembly 50, ensure its accurate running position, and improve transmission stability; the second bearing 123 and the auxiliary bearing are sequentially set at the other end, providing reliable support for the second screw assembly 50, reducing shaking and vibration during operation, and improving the overall smoothness of operation; the second drive hole 125 of the second drive platform 122 cooperates with the second screw assembly 50, allowing the screw to move freely and be limited by the limiting ring, thus ensuring transmission accuracy.
[0030] The sliding element 20 includes a first sliding member 21 and a second sliding member 22. The first sliding member 21 is disposed on a first station 11, and the second sliding member 22 is disposed on a second station 12. The first sliding member 21 slides on the first station 11 under the drive of the first screw, and the second sliding member 22 slides on the second station 12 under the drive of the second screw. In this embodiment, by setting the first screw and the second screw on the first and second stations 12 respectively, the sliding of the first sliding member 21 and the second sliding member 22 can be independently controlled, realizing synchronous or asynchronous operation of the two stations, greatly improving the working efficiency and flexibility of the equipment, and meeting the needs of different processing tasks or workflows.
[0031] The first sliding member 21 includes a first sliding rod 211, a first slider 212, and a first transmission seat 213. The first sliding rod 211 has a first sliding groove 214 on both sides. The first slider 212 has a first embedding block 215 on both sides facing the first sliding groove 214. One end of the first embedding block 215 is movably disposed in the first sliding groove 214. The first transmission seat 213 is disposed on the first screw assembly 40 to mount the first screw assembly 40 on the first slider 212. The first slider 212 is provided with a first oil injection element near the first screw assembly 40. The first oil injection element includes a first oil inlet and a first oil outlet, which are respectively disposed at both ends of the first slider 212. In this embodiment, the first slide rod 211 and the first slider 212 cooperate through the sliding groove and the embedded block to ensure that the first slider 212 slides smoothly along the first slide rod 211, thereby improving the stability and accuracy of operation. The first transmission seat 213 installs the first screw assembly 40 on the first slider 212, realizing the effective connection between the screw and the slider and ensuring accurate power transmission. The first oil injection element on the first slider 212, through the first oil inlet and the first oil outlet respectively provided at both ends, can effectively lubricate the contact parts of the first slider 212 with the first slide rod 211 and the first screw assembly 40, reduce wear, reduce frictional resistance, and improve the service life of the equipment.
[0032] The second sliding member 22 includes a second sliding rod 221, a second slider 223, and a second transmission seat 224. The second sliding rod 221 has second sliding grooves 225 on both sides. The second slider 223 has second embedding blocks 226 on both sides facing the second sliding grooves 225. One end of the second embedding block 226 is movably disposed in the second sliding groove 225. The second transmission seat 224 is disposed on the second screw assembly 50 to mount the second screw assembly 50 on the second slider 223. The second slider 223 has a second oil injection element 227 near the second screw assembly 50. The second oil injection element 227 includes a second oil inlet 228 and a second oil outlet 229. The second oil inlet 228 and the second oil outlet 229 are respectively disposed at both ends of the second slider 223. In this embodiment, the second slide bar 221 and the second slider 223 cooperate through the second slide groove 225 and the second embedded block 226, ensuring that the second slider 223 slides smoothly along the second slide bar 221, improving operational stability and accuracy. The second transmission seat 224 installs the second screw assembly 50 on the second slider 223, realizing the coordinated movement of the screw and the slider, ensuring effective power transmission. The second oil injection element 227 on the second slider 223 has its second oil inlet 228 and second oil outlet 229 located at both ends, which can effectively lubricate the second screw assembly 50 and related components. By continuously supplying lubricating oil through the oil inlet and timely discharging old oil through the oil outlet, component wear can be reduced, service life extended, and overall equipment performance improved.
[0033] The mounting element 30 includes a mounting block 31, a first mounting ring 32, and a second mounting ring 33. The first mounting ring 32 is disposed at one end of the mounting block 31 near the first screw assembly 40, and the second mounting ring 33 is disposed at the other end of the mounting block 31 near the second screw assembly 50. The mounting block 31 is provided with a mounting hole 311, and mounting threads 312 are evenly distributed on the inner wall of the mounting hole 311. The first mounting ring 32 and the second mounting ring 33 are the same size as the slot of the mounting hole 311. In this embodiment, mounting holes 311 with mounting threads 312 are provided on the mounting block 31 to facilitate a stable connection with other components. The evenly distributed mounting threads 312 can ensure the connection strength and stability. The first mounting ring 32 is located near the first screw assembly 40 and the second mounting ring 33 is located near the second screw assembly 50 at both ends of the mounting block 31, and the size of the groove of the mounting hole 311 is consistent with that of the groove. This not only plays a role in accurately positioning the screw and ensuring the accurate installation position of the screw, but also enhances the sealing between the screw and the mounting block 31, effectively preventing dust, debris and other objects from entering, thereby improving the overall running accuracy and reliability of the bidirectional threaded dual-station ball screw and extending its service life.
[0034] The first screw assembly 40 includes a first screw and a first rolling element 43. The first screw includes a first driving end 41, a first transmission end 42, and a first connecting end 44. The first driving end 41 is disposed on the first workstation 11, the first rolling element 43 is sleeved on the first screw and driven through the first transmission end 42, and one end of the first connecting end 44 is connected to the second screw assembly 50. In this embodiment, by placing the first driving end 41 on the first workstation 11, power can be precisely provided to ensure the stable operation and efficient work of the first workstation 11. The first rolling element 43 is sleeved on the first screw 40 and driven through the transmission end, which can effectively realize power transmission, ensure smooth and efficient movement, and reduce energy loss. The first connecting end 44 connects to the second screw 50, building a bridge for the collaborative work of the two screws, realizing close cooperation and linkage between the two workstations. It can simultaneously perform precise control and operation on different workstations, improve the overall working efficiency and processing accuracy of the equipment, meet the needs of complex production processes, and enhance the functionality and practicality of the equipment.
[0035] The second screw assembly 50 includes a second screw and a second rolling element 53; the second screw includes a second driving end 51 and a second transmission end 52; the second driving end 51 is disposed on the second station 12, and the second rolling element 53 is sleeved on the second screw and transmitted through the second transmission end 52. In this embodiment, the second driving end 51, located at the second station 12, provides a precise power source for the station, ensuring the stability and accuracy of the drive; the second rolling element 53, sleeved on the second screw, works in conjunction with the second transmission end 52 to achieve efficient motion transmission and improve transmission efficiency and accuracy.
[0036] A bidirectional threaded dual-station ball screw includes a worktable 10, a sliding element 20, a mounting element 30, a first screw assembly 40, and a second screw assembly 50. The sliding element 20 is disposed on both sides of the worktable 10, and the first screw assembly 40 and the second screw assembly 50 are disposed opposite each other on the worktable 10 to drive the sliding element 20 to move relative to each other. The two ends of the mounting element 30 are mounted on the worktable 10, and the mounting element 30 is used to mount the first screw assembly 40 and the second screw assembly 50 so that the first screw assembly 40 and the second screw assembly 50 can perform unified transmission on the worktable 10. In this embodiment, by setting sliding elements 20 on both sides of the worktable 10, stable support and smooth sliding conditions are provided for the relative movement of the first screw assembly 40 and the second screw assembly 50, ensuring that the screws can move accurately during operation, reducing shaking and deviation, and improving the operational stability and accuracy of the entire device. Through the relatively set first screw assembly 40 and second screw assembly 50, synchronous or asynchronous movement of the two workstations can be realized, greatly increasing the flexibility and functionality of the equipment. It can simultaneously meet different work requirements or perform different operations on different workpieces, improving work efficiency. The mounting element 30 uniformly installs and transmits the first screw assembly 40 and the second screw assembly 50, ensuring the coordination and consistency of the movement of the two screws. This makes the power transmission more stable, avoiding work errors caused by inconsistent transmission. It also simplifies the overall structure, reduces additional transmission components, meets the strict requirements for displacement accuracy under different working conditions, and is highly practical.
[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A bidirectional threaded dual-station ball screw, characterized in that: The device includes a worktable, sliding elements, mounting elements, a first screw assembly, and a second screw assembly. The sliding elements are disposed on both sides of the worktable, and the first and second screw assemblies are disposed opposite each other on the worktable to drive the sliding elements to move relative to each other. The mounting elements are mounted on the worktable at both ends and are used to mount the first and second screw assemblies so that the first and second screw assemblies can perform unified transmission on the worktable. The workbench includes a first station and a second station, the first screw assembly is disposed on the first station, the second screw assembly is disposed on the second station, the first station and the second station are connected, and the mounting element is disposed between the first station and the second station; The first screw assembly includes a first screw and a first rolling element; the first screw includes a first driving end, a first transmission end and a first connecting end; the first driving end is disposed at the first work station, the first rolling element is sleeved on the first screw and is driven through the first transmission end, and one end of the first connecting end is connected to the second screw assembly; The second screw assembly includes a second screw and a second rolling element; the second screw includes a second driving end and a second transmission end; the second driving end is disposed at the second work station, and the second rolling element is sleeved on the second screw and driven through the second transmission end.
2. The bidirectional threaded dual-station ball screw according to claim 1, characterized in that: The first workstation includes a first limiting ring, a first drive stage, a first bearing, and a first auxiliary bearing; the first limiting ring is disposed at one end of the first drive stage, and the first bearing and the first auxiliary bearing are disposed sequentially at the other end of the first drive stage; The first drive platform is provided with a first drive hole, one end of the first screw is movably inserted through the first drive hole and limited by the first limiting ring; the upper part of the first limiting ring is a plane, the first limiting ring is disposed in the first alignment hole near the first drive platform, and the first alignment hole is aligned with the first drive platform.
3. The bidirectional threaded dual-station ball screw according to claim 2, characterized in that: The second workstation includes a second limiting ring, a second drive stage, a second bearing, and a second auxiliary bearing; the second limiting ring is disposed at one end of the second drive stage, and the second bearing and the second auxiliary bearing are disposed sequentially at the other end of the second drive stage; The second drive platform is provided with a second drive hole, one end of the second screw is movably inserted through the second drive hole and limited by the second limiting ring; the upper part of the second limiting ring is a plane, the second limiting ring is disposed in the second alignment hole near the second drive platform, and the second alignment hole is aligned with the second drive platform.
4. The bidirectional threaded dual-station ball screw according to claim 1, characterized in that: The sliding element includes a first sliding member and a second sliding member. The first sliding member is disposed at a first working position, and the second sliding member is disposed at a second working position. The first sliding member slides at the first working position under the drive of the first screw, and the second sliding member slides at the second working position under the drive of the second screw.
5. The bidirectional threaded dual-station ball screw according to claim 4, characterized in that: The first sliding member includes a first sliding rod, a first sliding block, and a first transmission seat. The first sliding rod has first sliding grooves on both sides. The first sliding block has first embedding blocks on both sides facing the first sliding grooves. One end of the first embedding block is movably disposed in the first sliding groove. The first transmission seat is disposed on the first screw assembly to mount the first screw assembly on the first sliding block. The first oiling element is disposed on the first sliding block near the first screw assembly. The first oiling element includes a first oil inlet and a first oil outlet, which are respectively disposed at both ends of the first sliding block.
6. The bidirectional threaded dual-station ball screw according to claim 5, characterized in that: The second sliding member includes a second sliding rod, a second sliding block, and a second transmission seat. The second sliding rod has second sliding grooves on both sides. The second sliding block has second embedding blocks on both sides facing the second sliding grooves. One end of the second embedding block is movably disposed in the second sliding groove. The second transmission seat is disposed on the second screw assembly to mount the second screw assembly on the second sliding block. The second sliding block has a second oil injection element near the second screw assembly. The second oil injection element includes a second oil inlet and a second oil outlet, which are respectively disposed at both ends of the second sliding block.
7. The bidirectional threaded dual-station ball screw according to claim 1, characterized in that: The mounting element includes a mounting block, a first mounting ring, and a second mounting ring. The first mounting ring is located near the first screw assembly at one end of the mounting block, and the second mounting ring is located near the second screw assembly at the other end of the mounting block. The mounting block has a mounting hole with mounting threads evenly distributed on the inner wall of the mounting hole. The first and second mounting rings are the same size as the slot of the mounting hole.