Roller slider assembly and linear motion mechanism
By designing a rotatable handle and elastic element in the roller slider assembly, the problem of rollers being unable to adapt to narrow guide rails is solved, enabling rapid installation and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YUANYIN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, rollers cannot be effectively installed on guide rails with relatively narrow widths, resulting in low assembly efficiency and requiring repeated adjustments.
Design a roller slider assembly in which a second roller is mounted on a rotating handle that can be rotated to adjust the roller spacing, and an elastic element provides a reset force to ensure that the roller remains in contact with the guide rail.
It enables quick adaptation to narrow guide rails, facilitates rapid installation, avoids repeated adjustments, and ensures that the movement function of the roller slider assembly is not affected.
Smart Images
Figure CN224592550U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of sliding mechanism technology, and more specifically, relates to a roller slider assembly and a linear motion mechanism. Background Technology
[0002] In mechanical transmission and linear motion systems, roller-slider assemblies are widely used in automated equipment, CNC machine tools, and conveying systems. Their core function is to achieve high-precision, low-friction linear motion through the cooperation of rollers and guide rails. However, in practical applications, due to guide rail machining errors, installation accuracy deviations, and wear caused by long-term operation, the theoretical clearance between the guide rail and the roller often has a certain tolerance.
[0003] Traditional solutions involve adjusting the roller position using bolts, washers, or eccentric wheels to fit the actual width of the guide rail. However, for guide rails with narrower actual widths, the rollers cannot be effectively installed, requiring continuous adjustments to match the roller errors with the guide rail errors, which is time-consuming and inefficient. Utility Model Content
[0004] The purpose of this application is to provide a roller slider assembly and a linear motion mechanism to solve the technical problem of low assembly efficiency when the roller is adapted to a guide rail with a relatively narrow actual width in the prior art.
[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a roller slider assembly, comprising:
[0006] Mounting plate;
[0007] A rotating handle is rotatably mounted on the mounting plate;
[0008] An elastic element is installed between the handle and the mounting plate to provide a force for the handle to return to its original position after the handle is rotated.
[0009] The first roller is rotatably mounted on the mounting plate;
[0010] The second roller is rotatably mounted on the handle, and the distance between the first roller and the second roller changes as the handle rotates.
[0011] Optionally, it also includes a guide member, wherein the handle is provided with a strip hole, and the guide member is fixedly connected to the mounting plate and passes through the strip hole.
[0012] Optionally, the guide includes a rod and an end cap, one end of the rod is fixedly connected to the side of the mounting plate extending along the thickness direction, and the other end of the rod is provided with the end cap.
[0013] Optionally, the elastic element is sleeved on the guide element.
[0014] Optionally, the elastic element is located on the side of the handle opposite to the mounting plate.
[0015] Optionally, the mounting plate is provided with rotating handles on opposite sides along the thickness direction; each rotating handle is provided with a second roller, and the mounting plate is provided with two first rollers.
[0016] Optionally, the handle has a first lug and a second lug disposed opposite to each other, the first lug and the second lug being disposed on opposite sides of the mounting plate and rotatably connected to the mounting plate via a rotating shaft.
[0017] Optionally, the axial direction of the rotating shaft is parallel to the rotation axis of the second roller.
[0018] Optionally, the first roller includes a U-shaped bearing, and a pad is inserted into the mounting hole of the U-shaped bearing, with a fastener passing through the pad and connected to the mounting plate.
[0019] This application also provides a linear motion mechanism, including a guide rail and a roller slider assembly as described above, wherein the first roller and the second roller are supported on opposite sides of the guide rail.
[0020] The advantages of the roller slider assembly and linear motion mechanism provided in this application are as follows: Compared with the prior art, in this application, the second roller is mounted on a rotating handle, which can rotate relative to the mounting plate. This allows the position of the second roller relative to the mounting plate to change with the rotation of the handle, thereby enabling the distance between the first and second rollers to adapt to narrow guide rails. Installation is quick and requires no repeated adjustments. An elastic element is provided between the rotating handle and the mounting plate, providing a reset force for the second roller and ensuring that it remains in contact with the guide rail after installation, without affecting the movement function of the roller slider assembly. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A three-dimensional structural schematic diagram of the roller slider assembly provided in the embodiments of this application;
[0023] Figure 2 A three-dimensional structural diagram of the roller slider assembly provided in an embodiment of this application from another perspective;
[0024] Figure 3 This is a schematic diagram of the main structure of the roller slider assembly provided in an embodiment of this application;
[0025] Figure 4 A schematic diagram of the structure of the roller slider assembly provided in this application embodiment when adapted to a narrower track;
[0026] Figure 5 An exploded view of the roller slider assembly provided in the embodiments of this application;
[0027] Figure 6 This is a schematic diagram illustrating the engagement of the handle and the second roller in an embodiment of this application.
[0028] Figure 7 for Figure 6 The diagram shows the lateral structure of the structure shown.
[0029] Figure 8 A partial three-dimensional structural schematic diagram of the linear motion mechanism provided in the embodiments of this application;
[0030] Figure 9 A partial forward structural schematic diagram of the linear motion mechanism provided in the embodiments of this application;
[0031] Figure 10 This is a lateral structural diagram of the linear motion mechanism provided in the embodiments of this application.
[0032] The following are the labeling elements in the figure:
[0033] 10. Mounting plate; 11. First sidewall; 12. Second sidewall; 13. Threaded hole; 14. Through hole; 20. Rotary handle; 21. Strip hole; 22. Connecting lug; 23. First lug; 24. Second lug; 30. Elastic element; 40. First roller; 41. Pad; 42. Fastener; 50. Second roller; 60. Guide element; 61. Rod body; 62. End cap; 70. Washer; 80. Rotating shaft; 110. Guide rail; 120. Synchronous belt buckle. Detailed Implementation
[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0038] This application provides a roller slider assembly, see below. Figure 1 and Figure 2 It includes a mounting plate 10, a rotating handle 20, an elastic element 30, a first roller 40, and a second roller 50. The rotating handle 20 is rotatably mounted on the mounting plate 10, and the elastic element 30 is installed between the rotating handle 20 and the mounting plate 10 to provide a force for the rotating handle 20 to return to its original position after rotation. The first roller 40 is rotatably mounted on the mounting plate 10, and the second roller 50 is rotatably mounted on the rotating handle 20.
[0039] The center of the first roller 40 is fixed relative to the mounting plate 10. The second roller 50 is mounted on the handle 20 and can be finely adjusted relative to the mounting plate 10 as the handle 20 rotates. This causes the longitudinal distance between the first roller 40 and the second roller 50 to change when the handle 20 rotates.
[0040] Optionally, the elastic element 30 can be a spring, rubber, or shape memory alloy, or other elastic structure capable of stretching and deforming. For example, the elastic element 30 can be a tension spring or a compression spring. When the elastic element 30 is a tension spring, the tension spring is located on the side of the handle 20 closest to the mounting plate 10. Specifically, one end of the tension spring is connected to the handle 20, and the other end is connected to the side wall of the mounting plate 10. The tension spring pulls the handle 20, stabilizing the second roller 50 in its initial state. When the roller slider assembly is mounted on the guide rail 110, if the width of the guide rail 110 is less than the distance between the second roller 50 and the first roller 40 in its initial state, the guide rail 110 compresses the second roller 50, causing the handle 20 to rotate. During the rotation of the handle 20, the tension spring extends, increasing the pulling force. When the elastic element 30 is a compression spring, the compression spring is located on the side of the handle 20 furthest from the mounting plate 10. Specifically, a connecting portion protrudes from the side wall of the mounting plate 10, one end of the compression spring is connected to the handle 20, and the other end is connected to the connecting portion. A compression spring pushes the handle 20 against the side wall of the mounting plate 10 to stabilize the second roller 50 in its initial state. When the roller slider assembly is mounted on the guide rail 110, if the width of the guide rail 110 is less than the distance between the second roller 50 and the first roller 40 in the initial state, the guide rail 110 compresses the second roller 50, causing the handle 20 to rotate. During rotation, the compression spring is compressed, increasing the thrust provided.
[0041] See Figure 3 The second roller 50 is in its initial state, at which point the distance between the first roller 40 and the second roller 50 is relatively large. If the width of the guide rail 110 is less than the distance between the first roller 40 and the second roller 50, then when the roller slider assembly is mounted on the guide rail 110, the guide rail 110 will press against the second roller 50. In this case, refer to... Figure 4 When the handle 20 rotates relative to the mounting plate 10, the distance between the second roller 50 and the first roller 40 decreases to match the width of the guide rail 110. During the rotation of the handle 20, the elastic element 30 generates a spring force that drives the handle 20 to return to its original position. After the roller slider assembly is installed on the guide rail 110, the elastic element 30 helps the second roller 50 maintain a certain contact force with the guide rail 110.
[0042] When the roller slider assembly is installed on the guide rail 110, the handle 20 is manually rotated to reduce the gap between the second roller 50 and the first roller 40. After the first roller 40 and the second roller 50 are snapped into the guide rail 110, the elastic element 30 pulls the second roller 50 back to its original position and fits against the guide rail 110, thereby improving the assembly efficiency.
[0043] The roller slider assembly provided in this application embodiment has a second roller 50 mounted on a rotating handle 20. The rotating handle 20 can rotate relative to the mounting plate 10, thereby changing the position of the second roller 50 relative to the mounting plate 10 as the rotating handle rotates. This adjusts the distance between the first roller 40 and the second roller 50 to fit the narrow guide rail 110, allowing for quick installation without repeated adjustments. An elastic element 30 is disposed between the rotating handle 20 and the mounting plate 10, providing a reset force for the second roller 50. This ensures that the second roller 50 maintains contact with the guide rail 110 after installation, without affecting the movement function of the roller slider assembly.
[0044] In some embodiments, see Figure 4 , Figure 5 and Figure 6 The roller slider assembly also includes a guide 60, and the handle 20 is provided with a strip hole 21. The guide 60 is fixedly connected to the mounting plate 10 and passes through the strip hole 21.
[0045] See Figure 6 The handle 20 has a connecting lug 22, which is disposed opposite to the side wall of the mounting plate 10 extending along the thickness direction. A slotted hole 21 is provided on the connecting lug 22. The slotted hole 21 extends vertically, and the rod 61 of the guide member 60 passes through the slotted hole 21. When the handle 20 rotates, the handle 20 moves relative to the guide member 60. Since the movement trajectory of the handle 20 at the engagement point with the guide member 60 is arc-shaped, the slotted hole 21 is required to provide space for the movement of the handle 20 relative to the guide member 60.
[0046] Understandably, when the wall of the slot 21 abuts against the guide 60, the handle 20 cannot continue to rotate. Thus, by setting the guide 60 to constrain the rotation range of the handle 20, the handle 20 is prevented from rotating too much, and the second roller 50 is adjusted slightly.
[0047] In some embodiments, see Figure 5 The guide member 60 includes a rod body 61 and an end cap 62. One end of the rod body 61 is fixedly connected to the side of the mounting plate 10 extending along the thickness direction, and the other end of the rod body 61 is provided with an end cap 62. The rod body 61 passes through the strip hole 21.
[0048] See Figure 5 The rod 61 has a threaded end that connects to the mounting plate 10. The side wall of the mounting plate 10 has a threaded hole 13, and the rod 61 is inserted into the threaded hole 13 and threadedly connected to the mounting plate 10. Optionally, only part of the rod 61 has threads. Alternatively, the entire outer wall of the rod 61 has threads. An end cap 62 is located at the end of the rod 61, and its size is larger than the width of the slot 21, which can prevent the handle 20 from detaching from the rod 61.
[0049] See Figure 3 and Figure 4 The elastic element 30 is sleeved on the guide element 60. It should be noted that when the first roller 40 and the second roller 50 are not installed on the guide rail 110, refer to... Figure 3 That is, when the second roller 50 is in its initial state, the elastic element 30 can be in a stored state so that, with the help of the force of the elastic element 30, a certain contact force can be maintained between the second roller 50 and the guide rail 110 when the second roller 50 is installed on the guide rail 110 in its initial state. Of course, when the first roller 40 and the second roller 50 are not installed on the guide rail 110, the elastic element 30 may not be stored. This application does not make specific limitations on this.
[0050] In some alternative embodiments, one end of the elastic element 30 abuts against the handle 20, and the other end abuts against the side wall of the mounting plate 10. The end of the elastic element 30 may be fixedly connected to or only in contact with the mounting plate 10. For example, the elastic element 30 is a tension spring that pulls the handle 20. When the distance between the first roller 40 and the second roller 50 is greater than the size of the guide rail 110, refer to... Figure 4 The second roller 50 drives the rotating handle 20 to rotate under the pressure of the guide rail 110, and the elastic element 30 is stretched. The pulling force of the elastic element 30 on the rotating handle 20 makes the second roller 50 and the guide rail 110 maintain a certain contact force.
[0051] In some alternative embodiments, one end of the elastic element 30 abuts against the handle 20, and the other end abuts against the end cap 62. The end of the elastic element 30 and the end cap 62 may only contact or be fixedly connected. When the distance between the first roller 40 and the second roller 50 is greater than the size of the guide rail 110, the second roller 50 drives the handle 20 to rotate under the compression of the guide rail 110, and the elastic element 30 is compressed. The thrust of the elastic element 30 on the handle 20 maintains a certain contact force between the second roller 50 and the guide rail 110.
[0052] Specifically, the elastic element 30 is a spring, sleeved on the rod 61. To ensure stable support at the end of the elastic element 30, refer to... Figure 3 and Figure 5 A washer 70 is fitted onto the rod 61 of the guide member 60. At least one end of the elastic member 30 is provided with a washer 70. By providing the washer 70, the stability of the elastic member 30 can be improved by utilizing the larger working surface of the washer 70. For example, the elastic member 30 is disposed between the handle 20 and the side wall of the mounting plate 10, with a washer 70 provided at the end of the elastic member 30 near the mounting plate 10 and at the end of the elastic member 30 near the handle 20. Alternatively, a washer 70 may be provided only at the end of the elastic member 30 near the mounting plate 10 or only at the end of the elastic member 30 near the handle 20.
[0053] In addition, the guide member 60 can also be an L-shaped rod, one end of which is fixedly connected to the side wall of the mounting plate 10, and the other end has a bent structure that can constrain the elastic member 30 or the handle 20.
[0054] See Figure 4 and Figure 5 A rotating handle 20 is mounted on each of the opposite sides of the mounting plate 10 along its thickness direction. Each rotating handle 20 is equipped with a second roller 50. Correspondingly, the mounting plate 10 has two first rollers 40. This makes the roller-slider assembly largely symmetrical, improving operational stability.
[0055] See Figure 5 The mounting plate 10 has a first sidewall 11 and a second sidewall 12 extending along the thickness direction. Threaded holes 13 are provided on the first sidewall 11 and the second sidewall 12, respectively. The rods 61 of the two guide members 60 are inserted into the corresponding threaded holes 13. The bottoms of the two rotating handles 20 are rotatably connected to the mounting plate 10, and the tops of the two rotating handles 20 are provided with strip-shaped holes 21. The guide members 60 pass through the corresponding rotating handles 20 and connect to the mounting plate 10. Two elastic members 30 are fitted onto the two guide members 60, respectively, with the elastic members 30 located on the side of the rotating handle 20 facing away from the mounting plate 10. When the roller slider assembly is installed onto the guide rail 110, if the initial distance between the second roller 50 and the first roller 40 is greater than the width of the guide rail 110, the two rotating handles 20 open outwards, the elastic members 30 are compressed, and the distance between the second roller 50 and the first roller 40 decreases, thus adapting to the narrower guide rail 110.
[0056] See Figure 6 and Figure 7 The handle 20 has a first lug 23 and a second lug 24 disposed opposite to each other, see reference. Figure 2 The first ear 23 and the second ear 24 are respectively located on opposite sides of the mounting plate 10 and are rotatably connected to the mounting plate 10 through the rotating shaft 80.
[0057] See Figure 5 The mounting plate 10 is provided with a through hole 14, and the hole axis of the through hole 14 is parallel to the rotation axis 80 of the first roller 40. The rotating shaft 80 passes through the through hole 14 and extends out of the through hole 14 at both ends. One end of the rotating shaft 80 is connected to the first lug 23, and the other end is connected to the second lug 24.
[0058] The side wall of the mounting plate 10 has an L-shaped bend. The first lug 23 and the second lug 24 are respectively located on opposite sides of the transverse section of the L-shaped bend, and the threaded hole 13 is located on the vertical section of the L-shaped bend.
[0059] like Figure 5As shown, the axis of the rotating shaft 80 is parallel to the rotation axis of the second roller 50. The axis of the rotating shaft 80 is perpendicular to the axis of the rod 61. When the roller slider assembly is mounted on the narrower guide rail 110, the handle 20 rotates, causing the second roller 50 to move within its plane, and the guide member 60 limits the range of movement of the second roller 50 to achieve stable adjustment within a small range.
[0060] The first roller 40 includes a U-shaped bearing, and a pad 41 is inserted into the mounting hole of the U-shaped bearing. The fastener 42 passes through the pad 41 and is connected to the mounting plate 10.
[0061] See Figure 5 Both the first roller 40 and the second roller 50 are U-shaped bearings. A shim 41 is inserted into the mounting hole of the first roller 40 to compensate for machining or assembly errors in the bearing. Optionally, the fastener 42 is a bearing screw, which passes through the center hole of the shim 41 and is threaded to the mounting plate 10. The second roller 50 can compensate for machining or assembly errors by adjusting the handle 20. Therefore, the second roller 50 is directly mounted on the handle 20 using the bearing screw.
[0062] This application also provides a linear motion mechanism, see reference. Figures 8 to 10 It includes a guide rail 110 and a roller slider assembly as described above, with a first roller 40 and a second roller 50 supported on opposite sides of the guide rail 110.
[0063] See Figure 1 and Figure 2 The linear motion mechanism also includes a timing belt clip 120, which is fixed to the mounting plate 10. For example, the timing belt clip 120 is fixed to the mounting plate 10 by screws. See reference. Figure 10 The timing belt buckle 120, the first roller 40, and the second roller 50 are located on the same side of the mounting plate 10. The timing belt is mounted on the timing belt buckle 120, and the first roller 40 and the second roller 50 slide along the guide rail 110 under the drive of the timing belt.
[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A roller slider assembly, characterized by: include: Mounting plate (10); A rotating handle (20) is rotatably mounted on the mounting plate (10); An elastic element (30) is installed between the handle (20) and the mounting plate (10) to provide a force for the handle (20) to return to its original position after the handle (20) is rotated; The first roller (40) is rotatably mounted on the mounting plate (10); The second roller (50) is rotatably mounted on the handle (20). As the handle (20) rotates, the distance between the first roller (40) and the second roller (50) changes.
2. The roller slider assembly of claim 1, wherein: It also includes a guide (60), the handle (20) is provided with a strip hole (21), the guide (60) is fixedly connected to the mounting plate (10) and passes through the strip hole (21).
3. The roller slider assembly of claim 2, wherein: The guide member (60) includes a rod (61) and an end cap (62). One end of the rod (61) is fixedly connected to the side of the mounting plate (10) extending along the thickness direction, and the other end of the rod (61) is provided with the end cap (62).
4. The roller slider assembly of claim 2, wherein: The elastic element (30) is sleeved on the guide element (60).
5. The roller slider assembly of claim 4, wherein: The elastic element (30) is located on the side of the handle (20) opposite to the mounting plate (10).
6. The roller slider assembly of claim 1, wherein: The mounting plate (10) has rotating handles (20) installed on opposite sides along the thickness direction; each rotating handle (20) has a second roller (50) installed on it, and the mounting plate (10) has two first rollers (40).
7. The roller slider assembly of claim 1, wherein: The handle (20) has a first lug (23) and a second lug (24) arranged opposite to each other. The first lug (23) and the second lug (24) are respectively located on opposite sides of the mounting plate (10) and are rotatably connected to the mounting plate (10) via a rotating shaft (80).
8. The roller slider assembly of claim 7, wherein: The axial direction of the rotating shaft (80) is parallel to the rotation axis of the second roller (50).
9. The roller slider assembly of claim 1, wherein: The first roller (40) includes a U-shaped bearing, and a pad (41) is inserted into the mounting hole of the U-shaped bearing. A fastener (42) passes through the pad (41) and is connected to the mounting plate (10).
10. A linear motion mechanism characterized by: Includes a guide rail (110) and a roller slider assembly as described in any one of claims 1 to 9, wherein the first roller (40) and the second roller (50) are supported on opposite sides of the guide rail (110).