Reciprocating motion mechanism
By designing the drive and connecting components, the problem of easy damage to meshing gears was solved, stable reciprocating motion of the connecting components was achieved, service life was extended, and costs were reduced.
Patent Information
- Application Number
- CN202522394270.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-11
AI Technical Summary
In existing technologies, meshing gears are prone to frictional damage during long-term operation, resulting in reduced service life and increased operating costs.
By employing a design of drive and connection components, the displacement of the moving part in the first direction is converted into the displacement of the connection component through the opposing inclined plane between the driving and driven parts and the pushing inclined plane to oppose the rotation of the moving part. This enables the up-and-down reciprocating motion of the connection component, replacing the operation mode of gear rotation driving transmission rod.
It reduces friction damage, extends service life, and lowers operating costs.
Smart Images
Figure CN224944222U_ABST
Abstract
Description
Technical Field
[0001] This application relates to drive devices, and more particularly to a reciprocating motion mechanism. Background Technology
[0002] In modern machining processes, two meshing gears typically drive a transmission rod and a load-bearing component connected to the transmission rod in a reciprocating motion. However, these gears are prone to friction damage during prolonged operation, reducing their service life and necessitating timely replacement of worn gears, thus increasing operating costs. Utility Model Content
[0003] In view of the above situation, it is necessary to provide a reciprocating motion mechanism to reduce the cost of use.
[0004] Some embodiments of this application provide a reciprocating motion mechanism, including a drive assembly and two sets of connecting assemblies. The drive assembly includes a driving member, a driven member spaced apart from the driving member along a first direction, a movable member disposed between the driving member and the driven member, and a linkage member movably passing through the movable member along a preset direction. The linkage member is connected to the driving member and the driven member respectively. The driving member and the driven member are spaced apart along the first direction and each has a rotation axis, which is parallel to the first direction. The driving member has a supporting inclined surface on the side facing the driven member, which is inclined relative to the first direction. The driven member has a pushing inclined surface on the side facing the driving member, which is parallel to the supporting inclined surface. The movable member abuts against the supporting inclined surface and the pushing inclined surface respectively. The preset direction is perpendicular to the extension direction of the supporting inclined surface. When the driving member rotates around the rotation axis, it drives the driven member to rotate synchronously through the linkage member, so that the supporting inclined surface and the pushing inclined surface abut against the movable member to rotate. Two sets of connecting components are movably connected to both ends of the movable part. Each set of connecting components includes a connector and a support. One end of the connector is movably connected to the movable part, and the other end of the connector is rotatably connected to the support. Driven by the movable part, the connector drives the support to reciprocate up and down along the first direction.
[0005] In operation, the aforementioned reciprocating motion mechanism drives the driven component to rotate synchronously around the rotation axis via the linkage component. This causes the supporting and pushing inclined surfaces to resist the rotation of the movable component. Since both the supporting and pushing inclined surfaces are inclined relative to the first direction, the movable component generates a displacement component in the first direction under the resistance of the supporting and pushing inclined surfaces. This displacement of the movable component in the first direction is converted into the displacement of the connecting component, causing the connecting component to drive the support component to reciprocate in the first direction. The reciprocating motion mechanism drives two sets of connecting components to reciprocate up and down through a drive assembly, thereby replacing the operation method of using gears to drive the transmission rod to reciprocate up and down. This avoids the friction damage problem of gears under long-term operation, extends service life, and reduces operating costs.
[0006] In some embodiments, the movable component includes a first movable body and two second movable bodies. The first movable body is disposed between the driving member and the driven member, and abuts against the supporting inclined surface and the pushing inclined surface respectively. The linkage member is movably inserted through the first movable body in a preset direction. The two second movable bodies correspond one-to-one with the connectors of the two sets of connecting components. One end of the second movable body is connected to the first movable body, and the other end of the second movable body is movably inserted through the corresponding connector and abuts against the corresponding connector.
[0007] In some embodiments, both the driving member and the driven member include a connecting shaft and a supporting body. The connecting shaft is located on one side of the moving member and has a rotation axis. The supporting body is connected to the connecting shaft and abuts against the moving member. The supporting body of the driving member has a supporting ramp, and the supporting body of the driven member has a pushing ramp.
[0008] In some embodiments, the linkage includes a linkage body and two fasteners. The linkage body is movably disposed through the movable member, the driving member, and the driven member in a predetermined direction. The two fasteners are respectively disposed at both ends of the linkage body, and both fasteners are sleeved on the linkage body and threadedly connected to the linkage body. One fastener abuts against the side of the driving member opposite to the movable member, and the other fastener abuts against the side of the driven member opposite to the movable member.
[0009] In some embodiments, each set of connecting components further includes a limiting member disposed on the side of the driven member away from the driving member, the limiting member having a limiting groove configured for insertion of the driven member to limit the driven member.
[0010] In some embodiments, the limiting member is further provided with two guide grooves. The two guide grooves are provided on both sides of the limiting groove along a second direction perpendicular to the first direction. The two guide grooves correspond one-to-one with the two support members. The guide grooves are configured to allow the corresponding support members to be inserted to guide the support members.
[0011] In some embodiments, each set of connecting components further includes two extensions, which are located on the side of the limiting member away from the active member and correspond one-to-one with two guide grooves. The extensions are provided with connecting grooves that are connected to the corresponding guide grooves.
[0012] In some embodiments, the connector includes a connector body and a rotating shaft. One end of the connector body is movably connected to a movable member, and the rotating shaft is movably inserted through the connector body and the support member in a third direction perpendicular to the first direction, and the rotating shaft is rotatably connected to the connector body and the support member respectively.
[0013] In some embodiments, a bearing body is embedded at one end of the support member adjacent to the connector, and a rotating shaft is inserted through the bearing body in a third direction.
[0014] In some embodiments, the end of the connector away from the movable part is provided with a storage groove, and one end of the support is inserted into the storage groove and rotatably connected to the rotating shaft. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the reciprocating motion mechanism provided in the embodiments of this application.
[0016] Figure 2 for Figure 1 The diagram shown is an exploded view of the reciprocating motion mechanism.
[0017] Figure 3 For along Figure 2 The diagram shows a cross-sectional view of the limiting and supporting components of the reciprocating motion mechanism along the AA direction.
[0018] Explanation of main component symbols: reciprocating motion mechanism 100, drive assembly 10, driving component 11, supporting inclined surface 111, connecting shaft 112, supporting body 113, driven component 12, pushing inclined surface 121, movable component 13, first movable body 131, second movable body 132, linkage component 14, linkage body 141, fastening body 142, connecting assembly 20, connecting component 21, connecting body 211, storage groove 2111, rotating shaft body 212, support component 22, bearing body 221, limiting component 23, limiting groove 231, guide groove 232, extension component 24, connecting groove 241, rotation axis L. Detailed Implementation
[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0020] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection or a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above term in this application according to the specific circumstances.
[0022] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.
[0023] To facilitate the connection and explanation of the embodiments of this application, a three-dimensional coordinate system is established in some of the drawings, with the first direction being... Figure 1 The Z-axis direction shown is... Figure 1 The direction of extension of the rotation axis L shown is the second direction. Figure 1 The X-axis direction shown is... Figure 1 The direction in which one set of connecting components 20 points to another set of connecting components 20 is shown, and the third direction is... Figure 1 The Y-axis direction shown is... Figure 1 The direction in which one set of connecting components 20 points to the other set of connecting components 20 is perpendicular to each other, and the first direction, the second direction and the third direction are perpendicular to each other.
[0024] Please see Figure 1 This application provides a reciprocating motion mechanism 100, which includes a drive component 10 and two sets of connecting components 20 connected to the drive component 10. The drive component 10 drives the two sets of connecting components 20 to move up and down reciprocally. This eliminates the need for a complex gear transmission mechanism, reduces frictional damage during operation of the reciprocating motion mechanism 100, extends its service life, avoids frequent replacement of parts, and thus reduces operating costs.
[0025] Please see Figure 1 and Figure 2The drive assembly 10 includes an active member 11 located between two sets of connecting assemblies 20, a driven member 12 coaxially spaced from the active member 11 along a first direction, a movable member 13 connected between the active member 11 and the driven member 12, and a linkage member 14 movably passing through the movable member 13. The active member 11 and the driven member 12 are spaced apart along the first direction and each has a vertical rotation axis L parallel to the first direction. The active member 11 has a supporting inclined surface 111 on the side facing the driven member 12, and the supporting inclined surface 111 is inclined relative to the first direction. The driven member 12 has a pushing inclined surface 121 on the side facing the active member 11, and the pushing inclined surface 121 is parallel to the supporting inclined surface 111. The movable member 13 is located between the active member 11 and the driven member 12, and the movable member 13 abuts against the supporting inclined surface 111 and the pushing inclined surface 121 respectively. The opposite ends of the movable member 13 are movably connected to the two sets of connecting assemblies 20 respectively. Linkage member 14 is movably inserted through movable member 13 along a preset direction and connected to driving member 11 and driven member 12 respectively. The preset direction is perpendicular to the extension direction of the supporting inclined surface 111. When driving member 11 rotates around the rotation axis L, it drives driven member 12 to rotate synchronously through linkage member 14, so that supporting inclined surface 111 and pushing inclined surface 121 abut against movable member 13 and rotate. It should be noted that driving member 11 is connected to external drive member so that external drive member drives driving member 11 to rotate around rotation axis L. The external drive member can be a motor, rotary cylinder, machine spindle, etc. In this embodiment, the external drive member is machine spindle.
[0026] The driving member 11 drives the driven member 12 to rotate synchronously around the rotation axis L through the linkage member 14, so that the supporting inclined surface 111 and the pushing inclined surface 121 support the rotating member 13. Since the supporting inclined surface 111 and the pushing inclined surface 121 are both inclined relative to the first direction, the moving member 13 generates a displacement component in the first direction under the support of the supporting inclined surface 111 and the pushing inclined surface 121. This converts the displacement generated by the moving member 13 in the first direction into the displacement of the connecting component 20, thereby causing the connecting component 20 to move up and down reciprocally. This replaces the operation mode of the gear rotation driving the transmission rod to move up and down reciprocally, avoiding the friction damage problem of the gear under long-term operation, extending the service life and reducing the use cost.
[0027] Please see Figure 2 The driving member 11 and the driven member 12 have the same structure. Both the driving member 11 and the driven member 12 include a connecting shaft 112 connected to the linkage member 14 and a supporting body 113 connected to the connecting shaft 112. The connecting shaft 112 is generally rod-shaped and is located on one side of the movable member 13, having a rotation axis L. The supporting body 113 is generally block-shaped and is connected to the connecting shaft 112 and abuts against the movable member 13. The supporting body 113 of the driving member 11 has a supporting inclined surface 111, and the supporting body 113 of the driven member 12 has a pushing inclined surface 121.
[0028] The connecting shaft 112 rotates around the rotation axis L to transmit torque, causing the supporting body 113 to slide against the movable part 13 and rotate, so that the movable part 13 generates a displacement component in the first direction, thereby converting the rotational motion of the connecting shaft 112 into the up-and-down reciprocating motion of the connecting assembly 20, reducing the amount of wear between the parts during operation, thereby extending the service life and reducing the cost of use.
[0029] Please see Figure 1 and Figure 2 The movable component 13 includes a first movable body 131 that abuts against the driving component 11 and the driven component 12 respectively, and two second movable bodies 132 that are connected to the first movable body 131 respectively. The first movable body 131 is generally block-shaped and is located between the driving component 11 and the driven component 12. The first movable body 131 abuts against the supporting inclined surface 111 and the pushing inclined surface 121 respectively. The linkage component 14 is movably inserted through the first movable body 131 in a preset direction. The two second movable bodies 132 are both generally rod-shaped and are connected to the corresponding connecting components 20 respectively. One end of the second movable body 132 is connected to the first movable body 131, and the other end of the second movable body 132 is movably inserted through the corresponding connecting component 20 and abuts against the corresponding connecting component 20.
[0030] By setting the first movable body 131 to be clamped between the driving member 11 and the driven member 12, and simultaneously abutting against the supporting inclined surface 111 and the pushing inclined surface 121 respectively, when the driving member 11 and the driven member 12 rotate synchronously, the first movable body 131 is directly pushed by the supporting inclined surface 111 and the pushing inclined surface 121, so that the first movable body 131 only produces axial displacement, and drives the two second movable bodies 132 and the two sets of connecting components 20 to move up and down reciprocally, thereby converting the rotational force generated by the driving member 11 and the driven member 12 into the driving force for the up and down reciprocating motion of the connecting components 20 instantaneously through the movable member 13.
[0031] Please see Figure 2 The linkage 14 includes a linkage body 141 movably passing through the movable member 13 and two fasteners 142 threadedly connected to the linkage body 141. The linkage body 141 is generally rod-shaped and movably passes through the movable member 13, the driving member 11, and the driven member 12 in a predetermined direction. The two fasteners 142 are generally ring-shaped and are respectively located at both ends of the linkage body 141. Both fasteners 142 are sleeved on the linkage body 141 and threadedly connected to it. One fastener 142 abuts against the side of the driving member 11 opposite to the movable member 13, and the other fastener 142 abuts against the side of the driven member 12 opposite to the movable member 13. In this embodiment, the fastener 142 is a nut.
[0032] By setting two fasteners 142, the two ends of the linkage 141 can be fixed to the driving member 11 and the driven member 12 respectively, so as to lock the linkage 141 with the driving member 11 and the driven member 12 into an integral structure, limiting the movement of the linkage 141 in the axial direction of the linkage 141, thereby ensuring that the driving member 11 and the driven member 12 rotate synchronously through the linkage 141, thereby improving the driving stability of the drive assembly 10.
[0033] Please see Figure 1 , Figure 2 and Figure 3 Two sets of connecting components 20 are movably connected to both ends of the movable member 13, respectively. Each set of connecting components 20 includes a connector 21 movably connected to the movable member 13, a support member 22 rotatably connected to the connector 21, a limiting member 23 for inserting the support member 22, and an extension member 24 connected to the limiting member 23. One end of the connector 21 is movably connected to the movable member 13, and the other end of the connector 21 is rotatably connected to the support member 22. Driven by the movable member 13, the connector 21 drives the support member 22 to reciprocate up and down along a first direction. The limiting member 23 is generally block-shaped and is located on the side of the driven member 12 away from the driving member 11. The limiting member 23 has a limiting groove 231 and two guide grooves 232 on both sides of the limiting groove 231. The limiting groove 231 is configured to allow the driven member 12 to be inserted to limit its movement direction. The two guide grooves 232 are located on both sides of the limiting groove 231 along a second direction, and each guide groove 232 corresponds to one of the two support members 22. The guide grooves 232 are configured to allow the corresponding support members 22 to be inserted to guide their movement direction. Both extension members 24 are generally tubular and are located on the side of the limiting member 23 away from the driving member 11, corresponding to one of the two guide grooves 232. Each extension member 24 has a connecting groove 241 that communicates with the corresponding guide groove 232. The two sets of connecting components 20 share the same limiting member 23.
[0034] The connector 21 can transmit the thrust generated by the movable member 13 in the first direction to the support member 22, so that the support member 22 can reciprocate up and down in the first direction under the guidance of the guide groove 232; the extension member 24 is connected to the corresponding guide groove 232 through the connecting groove 241, which can extend the guide length of the support member 22 to stabilize the movement direction of the guide support member 22, thereby improving the guide stability; the connecting shaft 112 of the driven member 12 is housed by the limiting groove 231, which can prevent the driven member 12 from jumping in the radial direction of the driven member 12, thereby limiting the driven member 12 to always rotate around the rotation axis L, improving the working accuracy.
[0035] Please see Figure 2The connector 21 includes a connector 211 movably connected to the movable member 13 and a rotating shaft 212 movably passing through the connector 211. The connector 211 is generally U-shaped, with one end movably connected to the movable member 13 and the other end having a receiving groove 2111. The end of the support member 22 adjacent to the connector 211 is inserted into the receiving groove 2111. The rotating shaft 212 is generally rod-shaped, movably passing through the connector 211 and the support member 22 in a third direction, and rotatably connected to both the connector 211 and the support member 22.
[0036] The pivot 212 passes through the connector 211 and the support 22 in a third direction, so that the connector 211 and the support 22 form a rotational connection structure, ensuring that the connector 211 stably drives the support 22 to reciprocate. The connector 211 stores one end of the support 22 through the storage groove 2111, so that the storage groove 2111 provides the support 22 with room to move, preventing interference between the connector 211 and the support when the connector 211 drives the support 22 to move, thereby improving the stability of the reciprocating motion.
[0037] Please see Figure 2 The support member 22 is provided with a bearing body 221 at one end adjacent to the connector 21, and the rotating shaft 212 passes through the bearing body 221 in a third direction.
[0038] The support member 22 reduces the friction between itself and the rotating shaft 212 through the bearing body 221, which is conducive to the smooth reciprocating motion of the support member 22 driven by the connecting member 21.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.
Claims
1. A reciprocating motion mechanism, characterized in that, include: A driving component includes an active member, a driven member spaced apart from the active member along a first direction, a movable member disposed between the active member and the driven member, and a linkage member movably passing through the movable member along a preset direction. The linkage member is connected to the active member and the driven member respectively. The active member and the driven member are spaced apart along the first direction and each has a rotation axis, which is parallel to the first direction. The active member has a retaining inclined surface on its side facing the driven member, which is inclined relative to the first direction. The driven member has a pushing inclined surface on its side facing the active member, which is parallel to the retaining inclined surface. The movable member abuts against the retaining inclined surface and the pushing inclined surface respectively. The preset direction is perpendicular to the extending direction of the retaining inclined surface. When the active member rotates around the rotation axis, it drives the driven member to rotate synchronously through the linkage member, so that the retaining inclined surface and the pushing inclined surface abut against the movable member and cause it to rotate. Two sets of connecting components are movably connected to both ends of the movable component. Each set of connecting components includes a connector and a support component. One end of the connector is movably connected to the movable component, and the other end of the connector is rotatably connected to the support component. The connector drives the support component to reciprocate up and down along the first direction under the drive of the movable component.
2. The reciprocating motion mechanism as described in claim 1, characterized in that, The movable component includes: A first movable body is disposed between the driving member and the driven member. The first movable body abuts against the abutting inclined surface and the pushing inclined surface respectively. The linkage member is movably inserted through the first movable body along the preset direction. Two second movable bodies correspond one-to-one with the connectors of the two sets of connecting components. One end of the second movable body is connected to the first movable body, and the other end of the second movable body is movably inserted through the corresponding connector and abuts against the corresponding connector.
3. The reciprocating motion mechanism as described in claim 1, characterized in that, Both the driving member and the driven member include: A connecting shaft is located on one side of the movable component and has the axis of rotation; The abutting body is connected to the connecting shaft and abuts against the movable member. The abutting body of the driving member is provided with the abutting inclined surface, and the abutting body of the driven member is provided with the pushing inclined surface.
4. The reciprocating motion mechanism as described in claim 1, characterized in that, The linkage component includes: The linkage body is movably disposed in the movable component, the driving component, and the driven component along the preset direction; Two fasteners are respectively located at both ends of the linkage body. Both fasteners are sleeved on the linkage body and threadedly connected to it. One fastener abuts against the side of the driving member away from the moving member, and the other fastener abuts against the side of the driven member away from the moving member.
5. The reciprocating motion mechanism as described in claim 1, characterized in that, Each set of connection components also includes: A limiting member is provided on the side of the driven member away from the driving member. The limiting member has a limiting groove, which is configured for the driven member to be inserted into in order to limit the driven member.
6. The reciprocating motion mechanism as described in claim 5, characterized in that, The limiting member is also provided with two guide grooves. The two guide grooves are provided on both sides of the limiting groove along a second direction perpendicular to the first direction. The two guide grooves correspond one-to-one with the two supporting members. The guide grooves are configured to allow the corresponding supporting members to be inserted to guide the supporting members.
7. The reciprocating motion mechanism as described in claim 6, characterized in that, Each set of connection components also includes: Two extension members are provided on the side of the limiting member away from the active member, and correspond one-to-one with the two guide grooves. The extension members are provided with a connecting groove, which is connected to the corresponding guide groove.
8. The reciprocating motion mechanism as described in claim 1, characterized in that, The connector includes: A connector, one end of which is movably connected to the movable component; A rotating shaft is movably inserted through the connecting body and the supporting member in a third direction perpendicular to the first direction, and the rotating shaft is rotatably connected to the connecting body and the supporting member respectively.
9. The reciprocating motion mechanism as described in claim 8, characterized in that, The support member has a bearing body embedded at one end adjacent to the connector, and the rotating shaft passes through the bearing body along the third direction.
10. The reciprocating motion mechanism as described in claim 8, characterized in that, The end of the connector away from the movable part is provided with a storage groove, and one end of the support is inserted into the storage groove and rotatably connected to the rotating shaft.