CN219549517U - Lead screw transmission mechanism not easy to deform - Google Patents

Lead screw transmission mechanism not easy to deform Download PDF

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Publication number
CN219549517U
CN219549517U CN202320219190.0U CN202320219190U CN219549517U CN 219549517 U CN219549517 U CN 219549517U CN 202320219190 U CN202320219190 U CN 202320219190U CN 219549517 U CN219549517 U CN 219549517U
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China
Prior art keywords
screw rod
support piece
bearing
screw
ring
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Application number
CN202320219190.0U
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Chinese (zh)
Inventor
林子铭
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Ecom Precision Machinery Co ltd
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Ecom Precision Machinery Co ltd
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Priority to CN202320219190.0U priority Critical patent/CN219549517U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model provides a screw rod transmission mechanism which is not easy to deform, comprising a base, a screw rod nut and a workbench, wherein the workbench is slidably arranged on the base, the screw rod nut is fixedly connected with the workbench, two ends of the screw rod are rotatably arranged on the base through a bearing group, and the screw rod is in transmission connection with the screw rod nut so as to drive the screw rod nut to move through rotation of the screw rod, thereby driving the workbench to slide on the base. According to the utility model, the screw rod is supported by the left supporting piece and the right supporting piece, and because the left supporting piece and the right supporting piece are fixedly connected, when the screw rod nut moves leftwards, the right supporting piece synchronously moves leftwards and is always supported on a rod section of the middle part of the screw rod to the right, when the screw rod nut moves rightwards and drives the right supporting piece to move rightwards, the left supporting piece synchronously moves rightwards and is always supported on the rod section of the middle part of the screw rod to the left, so that the screw rod is effectively prevented from sagging and deforming due to overlong length.

Description

Lead screw transmission mechanism not easy to deform
Technical Field
The utility model relates to the technical field of screw transmission structures, in particular to a screw transmission mechanism which is not easy to deform.
Background
The screw rod transmission mechanism has the advantages of high transmission efficiency, high precision, low noise and the like, so that the screw rod transmission mechanism is widely applied, but has the defect that the length of the screw rod cannot be too long, the middle of the screw rod is too long, the screw rod sags down, deformation is generated, and the precision is reduced.
Disclosure of Invention
The utility model aims at overcoming the defects, and provides the screw transmission mechanism which is not easy to deform and can effectively prevent the screw from deforming by arranging the supporting structure to support the screw, thereby ensuring the operation precision of the screw.
The utility model solves the technical problems by adopting the scheme that: the screw rod is in transmission connection with the screw rod and is driven by the rotation of the screw rod to move so as to drive the workbench to slide on the base;
the screw rod is further provided with a left support piece positioned on the left side of the screw rod nut and a right support piece positioned on the right side of the screw rod nut in a sliding mode, the left support piece is fixedly connected with the right support piece through a rod piece, the distance between the left support piece and the right support piece is one half of the length of the screw rod, so that the screw rod nut drives the left support piece to move to the leftmost end or drives the right support piece to move to the rightmost end, the right support piece or the left support piece synchronously moves to the middle of the screw rod, and wear-resistant collision rings used for being in hard contact with the screw rod nut are arranged on two sides of the left support piece and the right support piece.
Further, in order to slidingly mount the left support member and the right support member on the base and ensure that the left support member and the right support member remain stationary relative to the base and do not rotate with the screw rod when the screw rod rotates; the left support piece and the right support piece comprise an inner ring and a fixed seat, a support wire rail is arranged on the base, the fixed seat is slidably mounted on the support wire rail, the rod piece is mounted on the fixed seat, the inner ring is rotatably mounted in the fixed seat through an inner bearing, the inner ring is movably sleeved on the screw rod, and the inner diameter of the inner ring is larger than the outer diameter of the screw rod.
Further, in order to form a limit mounting structure of the inner bearing; the inner bearings on the left support piece and the right support piece are respectively provided with two groups, the two groups of inner bearings are spaced by a spacing ring, one side of the inner ring is provided with an annular flange which radially protrudes outwards and is used for limiting and installing the inner bearings, the other side of the inner ring is provided with an annular groove, the annular groove is provided with a C-shaped retaining ring which is used for limiting and installing the inner bearings, the wear-resisting collision ring is fixedly installed on two sides of the fixing seat through screws, and the inner side of the wear-resisting collision ring is provided with an annular protrusion which axially extends inwards and is used for limiting and installing the inner bearings.
Further, in order to rotatably mount both ends of the screw rod on the base; the bearing set comprises a left bearing and a right bearing, the left side of the screw rod is rotatably provided with a left bearing sleeve through the left bearing, the left bearing sleeve is fixedly arranged on the base through a screw, the left side of the left bearing sleeve is provided with a left end cover through a screw, the left end cover is provided with a limiting ring which extends inwards in the axial direction and is used for limiting and installing the left bearing, the left side of the screw rod is in threaded connection with a locking nut positioned at the left side of the left bearing, the left side of the screw rod is also sleeved with a left gasket which is used for matching with the limiting ring to limit and install the left bearing, and the left side of the screw rod is also in threaded connection with a left nut used for locking the left gasket;
the right side of lead screw is rotated through right bearing and is installed right bearing housing, right bearing housing passes through screw fixed mounting on the base, and the left side ring of right bearing housing is equipped with radial inwards extension and is used for spacing installation right bearing's spacing arch, and the right side of right bearing housing is through screw fixed mounting has the bearing cap that is used for compressing tightly right bearing to the left, the cover is equipped with the right packing ring that is used for spacing installation right bearing with spacing arch cooperation on the lead screw, still threaded connection has the right nut that is used for locking right packing ring on the lead screw.
Further, in order to slidingly mount the workbench on the base, at the same time, the screw nut is restrained from rotating, and the spiral motion is converted into linear motion; two sides of the base are symmetrically provided with two sliding rails, a plurality of sliding blocks are slidably arranged on the sliding rails, and the sliding blocks are fixedly connected with the workbench.
Compared with the prior art, the utility model has the following advantages: according to the utility model, the screw rod is supported by the left support piece and the right support piece, because the left support piece and the right support piece are fixedly connected, when the screw rod nut moves leftwards, the right support piece synchronously moves leftwards and is always supported on a rod section from the middle part to the right of the screw rod, when the screw rod nut moves rightwards and drives the right support piece to move rightwards, the left support piece synchronously moves rightwards and is always supported on the rod section from the middle part to the left of the screw rod, so that the screw rod is effectively prevented from sagging and deforming due to overlong length, the left support piece and the right support piece are slidably arranged on a support wire rail, the moving precision of the screw rod is effectively ensured, and the running precision of the screw rod is further ensured.
Drawings
The utility model is further described below with reference to the accompanying drawings in conjunction with examples:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the utility model with the work table removed;
FIG. 3 is a connection structure diagram of the left and right supports;
FIG. 4 is a structural cross-sectional view of the left and right supports;
FIG. 5 is a structural cross-sectional view of the right support;
FIG. 6 is a connection structure diagram of the left end of the screw;
fig. 7 is a connection structure diagram of the right end of the screw.
In the figure: a base 1; a screw rod 2; a screw nut 3; a work table 4; a bearing group 5; a left support 6; a right support 7; wear-resistant bump ring 8; annular projection 801; an inner ring 9; an annular flange 901; a fixing base 10; a support wire rail 11; a rod 12; a C-shaped clasp 13; a left bearing 14; a left bearing housing 15; a left end cap 16; a left washer 17; a left nut 18; a right bearing housing 19; a bearing cover 20; a right gasket 21; a right nut 22; a slide rail 23; a slider 24.
Detailed Description
The present utility model is described in detail below with reference to the attached drawings and specific examples of the specification:
specific examples: as shown in fig. 1-7, the embodiment provides a screw transmission mechanism which is not easy to deform, and comprises a base 1, a screw rod 2, a screw rod nut 3 and a workbench 4, wherein the workbench 4 is slidably arranged on the base 1, the screw rod nut 3 is fixedly connected with the workbench 4, two ends of the screw rod 2 are rotatably arranged on the base 1 through a bearing group 5, and the screw rod 2 is in transmission connection with the screw rod nut 3 so as to drive the screw rod nut 3 to move through rotation of the screw rod 2 and further drive the workbench 4 to slide on the base 1;
the screw rod 2 is further provided with a left support piece 6 positioned on the left side of the screw rod nut 3 and a right support piece 7 positioned on the right side of the screw rod nut 3 in a sliding manner, the left support piece 6 is fixedly connected with the right support piece 7 through a rod piece 12, and the distance between the left support piece 6 and the right support piece 7 is one half of the length of the screw rod 2, so that the screw rod nut 3 drives the left support piece 6 to move to the leftmost end or drives the right support piece 7 to move to the rightmost end, the right support piece 7 or the left support piece 6 synchronously moves to the middle part of the screw rod 2, and wear-resisting collision rings 8 used for being in hard contact with the screw rod nut 3 are arranged on two sides of the left support piece 6 and the right support piece 7.
In this embodiment, in order to slidingly mount the left support 6 and the right support 7 on the base 1 and ensure that the left support 6 and the right support 7 remain stationary relative to the base 1 and do not rotate with the screw 2 when the screw 2 rotates; the left support piece 6 and the right support piece 7 comprise an inner ring 9 and a fixed seat 10, a support wire rail 11 is arranged on the base 1, the fixed seat 10 is slidably mounted on the support wire rail 11, a rod piece 12 is mounted on the fixed seat 10, the inner ring 9 is rotatably mounted in the fixed seat 10 through an inner bearing, the inner ring 9 is movably sleeved on the screw rod 2, and the inner diameter of the inner ring 9 is larger than the outer diameter of the screw rod 2.
In this embodiment, in order to form a spacing mounting structure for the inner bearing; the inner bearings on the left support piece 6 and the right support piece 7 are respectively provided with two groups, the two groups of inner bearings are spaced by a spacer ring, one side of the inner ring 9 is provided with an annular flange 901 which protrudes outwards in a radial direction and is used for limiting and installing the inner bearings, the other side of the inner ring 9 is provided with an annular groove, the annular groove is provided with a C-shaped retaining ring 13 used for limiting and installing the inner bearings, the wear-resistant collision ring 8 is fixedly installed on two sides of the fixing seat 10 by screws, and the inner side of the wear-resistant collision ring 8 is provided with an annular protrusion 801 which extends inwards in an axial direction and is used for limiting and installing the inner bearings.
In the present embodiment, in order to rotatably mount both ends of the screw 2 on the base 1; the bearing set 5 comprises a left bearing 14 and a right bearing, a left bearing sleeve 15 is rotatably arranged on the left side of the screw rod 2 through the left bearing 14, the left bearing sleeve 15 is fixedly arranged on the base 1 through screws, a left end cover 16 is arranged on the left side of the left bearing sleeve 15 through screws, a limiting ring which extends inwards in the axial direction and is used for limiting and installing the left bearing 14 is annularly arranged on the left end cover 16, a locking nut which is positioned on the left side of the left bearing 14 is connected with the left side of the screw rod 2 in a threaded manner, a left gasket 17 which is used for matching with the limiting ring and limiting and installing the left bearing 14 is also sleeved on the left side of the screw rod 2, and a left nut 18 which is used for locking the left gasket 17 is also connected with the left side of the screw rod 2 in a threaded manner;
the right side of lead screw 2 is rotated through right bearing and is installed right bearing housing 19, right bearing housing 19 passes through screw fixation and installs on base 1, and the left side ring of right bearing housing 19 is equipped with radial inwards extension and is used for spacing installation right bearing's spacing arch, and the right side of right bearing housing 19 passes through screw fixation and installs the bearing gland 20 that is used for compressing tightly right bearing left, the cover is equipped with on the lead screw 2 and is used for spacing installation right bearing's right packing ring 21 with spacing protruding cooperation, still threaded connection has right nut 22 that is used for locking right packing ring 21 on the lead screw 2.
In the present embodiment, in order to slidably mount the table 4 on the base 1 while restraining the rotation of the lead screw nut 3, the screw motion is converted into a linear motion; two sliding rails 23 are symmetrically arranged on two sides of the base 1, a plurality of sliding blocks 24 are slidably arranged on the sliding rails 23, and the sliding blocks 24 are fixedly connected with the workbench 4.
According to the utility model, the screw rod 2 is supported by the left support piece 6 and the right support piece 7, and because the left support piece 6 and the right support piece 7 are fixedly connected, when the screw rod nut 3 moves leftwards, the right support piece 7 synchronously moves leftwards and is always supported on a rod section of the middle part of the screw rod 2 to the right, when the screw rod nut 3 moves rightwards and the right support piece 7 is driven to move rightwards, the left support piece 6 synchronously moves rightwards and is always supported on the rod section of the middle part of the screw rod 2 to the left, so that the screw rod 2 is effectively prevented from sagging and deforming due to overlong length, and the left support piece 6 and the right support piece 7 are slidably arranged on the support wire rail 11, so that the movement precision of the screw rod 2 is effectively ensured, and further, the running precision of the screw rod 2 is ensured, and in addition, the two sides of the left support piece 6 and the right support piece 7 are provided with wear-resistant collision rings 8, the wear-resistant and collision-resistant properties, and the service lives of the left support piece 6 and the right support piece 7 can be effectively prolonged.
The foregoing description is only exemplary embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather, the equivalent structures or equivalent processes disclosed in the present specification and the accompanying drawings, or the direct or indirect application in other related technical fields, are all included in the scope of the present utility model.

Claims (5)

1. The utility model provides a difficult shape lead screw drive mechanism which characterized in that: the device comprises a base, a screw rod, screw rod nuts and a workbench, wherein the workbench is slidably arranged on the base, the screw rod nuts are fixedly connected with the workbench, two ends of the screw rod are rotatably arranged on the base through bearing groups, and the screw rod is in transmission connection with the screw rod nuts so as to drive the screw rod nuts to move through rotation of the screw rod and further drive the workbench to slide on the base;
the screw rod is further provided with a left support piece positioned on the left side of the screw rod nut and a right support piece positioned on the right side of the screw rod nut in a sliding mode, the left support piece is fixedly connected with the right support piece through a rod piece, the distance between the left support piece and the right support piece is one half of the length of the screw rod, so that the screw rod nut drives the left support piece to move to the leftmost end or drives the right support piece to move to the rightmost end, the right support piece or the left support piece synchronously moves to the middle of the screw rod, and wear-resistant collision rings used for being in hard contact with the screw rod nut are arranged on two sides of the left support piece and the right support piece.
2. The non-deformable screw drive of claim 1, wherein: the left support piece and the right support piece comprise an inner ring and a fixed seat, a support wire rail is arranged on the base, the fixed seat is slidably mounted on the support wire rail, the rod piece is mounted on the fixed seat, the inner ring is rotatably mounted in the fixed seat through an inner bearing, the inner ring is movably sleeved on the screw rod, and the inner diameter of the inner ring is larger than the outer diameter of the screw rod.
3. The non-deformable screw drive of claim 2, wherein: the inner bearings on the left support piece and the right support piece are respectively provided with two groups, the two groups of inner bearings are spaced by a spacing ring, one side of the inner ring is provided with an annular flange which radially protrudes outwards and is used for limiting and installing the inner bearings, the other side of the inner ring is provided with an annular groove, the annular groove is provided with a C-shaped retaining ring which is used for limiting and installing the inner bearings, the wear-resisting collision ring is fixedly installed on two sides of the fixing seat through screws, and the inner side of the wear-resisting collision ring is provided with an annular protrusion which axially extends inwards and is used for limiting and installing the inner bearings.
4. The non-deformable screw drive of claim 1, wherein: the bearing set comprises a left bearing and a right bearing, the left side of the screw rod is rotatably provided with a left bearing sleeve through the left bearing, the left bearing sleeve is fixedly arranged on the base through a screw, the left side of the left bearing sleeve is provided with a left end cover through a screw, the left end cover is provided with a limiting ring which extends inwards in the axial direction and is used for limiting and installing the left bearing, the left side of the screw rod is in threaded connection with a locking nut positioned at the left side of the left bearing, the left side of the screw rod is also sleeved with a left gasket which is used for matching with the limiting ring to limit and install the left bearing, and the left side of the screw rod is also in threaded connection with a left nut used for locking the left gasket;
the right side of lead screw is rotated through right bearing and is installed right bearing housing, right bearing housing passes through screw fixed mounting on the base, and the left side ring of right bearing housing is equipped with radial inwards extension and is used for spacing installation right bearing's spacing arch, and the right side of right bearing housing is through screw fixed mounting has the bearing cap that is used for compressing tightly right bearing to the left, the cover is equipped with the right packing ring that is used for spacing installation right bearing with spacing arch cooperation on the lead screw, still threaded connection has the right nut that is used for locking right packing ring on the lead screw.
5. The non-deformable screw drive of claim 1, wherein: two sides of the base are symmetrically provided with two sliding rails, a plurality of sliding blocks are slidably arranged on the sliding rails, and the sliding blocks are fixedly connected with the workbench.
CN202320219190.0U 2023-02-15 2023-02-15 Lead screw transmission mechanism not easy to deform Active CN219549517U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320219190.0U CN219549517U (en) 2023-02-15 2023-02-15 Lead screw transmission mechanism not easy to deform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320219190.0U CN219549517U (en) 2023-02-15 2023-02-15 Lead screw transmission mechanism not easy to deform

Publications (1)

Publication Number Publication Date
CN219549517U true CN219549517U (en) 2023-08-18

Family

ID=87732182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320219190.0U Active CN219549517U (en) 2023-02-15 2023-02-15 Lead screw transmission mechanism not easy to deform

Country Status (1)

Country Link
CN (1) CN219549517U (en)

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