CN105092228A - Transmission switching apparatus - Google Patents

Transmission switching apparatus Download PDF

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Publication number
CN105092228A
CN105092228A CN201510530851.1A CN201510530851A CN105092228A CN 105092228 A CN105092228 A CN 105092228A CN 201510530851 A CN201510530851 A CN 201510530851A CN 105092228 A CN105092228 A CN 105092228A
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CN
China
Prior art keywords
rotating shaft
casing
bolt
hole
power source
Prior art date
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Granted
Application number
CN201510530851.1A
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Chinese (zh)
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CN105092228B (en
Inventor
李曦
孔刚
陈吉红
乔廷强
张艳芬
朱念念
陈晗
郭永才
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Huazhong University of Science and Technology
Wuhan Huazhong Numerical Control Co Ltd
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Huazhong University of Science and Technology
Wuhan Huazhong Numerical Control Co Ltd
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Application filed by Huazhong University of Science and Technology, Wuhan Huazhong Numerical Control Co Ltd filed Critical Huazhong University of Science and Technology
Priority to CN201510530851.1A priority Critical patent/CN105092228B/en
Publication of CN105092228A publication Critical patent/CN105092228A/en
Application granted granted Critical
Publication of CN105092228B publication Critical patent/CN105092228B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a transmission switching apparatus. The apparatus comprises a casing, a first rotating shaft, a second rotating shaft and a belt wheel transmission mechanism. The first rotating shaft and the second rotating shaft are both rotationally installed on the casing, the first rotating shaft and the second rotating shaft are parallel to each other, and the first rotating shaft is disposed below the second rotating shaft; the first rotating shaft and the second rotating shaft are connected through the belt wheel transmission mechanism; and the casing is respectively provided with a first power source installation through hole and a second power source installation through hole at positions opposite to the first rotating shaft and the second rotating shaft, for selecting to install a power source at the first power source installation through hole or the second power source installation through hole and accordingly driving the first rotating shaft to rotate through the power source. According to the invention, the function scope of a test platform of a machine tool is greatly expanded, the system structure and the adjustment switching operation of the test platform are simplified, the weight and the dimension of the whole test platform are reduced, and a guarantee is provided for rapid and convenient conduction of experimental research.

Description

A kind of transmission switching device shifter
Technical field
The invention belongs to gearing field, more specifically, relate to a kind of transmission switching device shifter.
Background technology
The performance of feed system on lathe of numerically-controlled machine has critical impact; The Static and dynamic performance such as its system stiffness of different feed systems, inertia, viscous friction power, damping friction power are all different, these characteristics on the precision of lathe, to creep and the characteristic such as vibration has critical impact, therefore need to build experiment porch and deep research is carried out to feed system static and dynamic performance, to probe into itself and the matching relationship between machine body mechanical property and servo parameter.
Mostly the Experimental Establishment of current research feed system electromechanical properties is to make different feed drive gearings respectively.This mode spends high, takes up an area large, there is the problem of duplicate construction, and accurately cannot ensure the consistance of the factor outside feed system.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of dependable performance, the easy to operate switching device shifter of transmission fast, achieve between the different kind of drive of lathe electrical and mechanical comprehensive Testing Platform and switch simply and rapidly, can realize fast test platform directly connecting, reductor connects and synchronous cog belt connects quick switching between three kinds of kinds of drive
For achieving the above object, according to the present invention, provide a kind of transmission switching device shifter, it is characterized in that: comprise casing, the first rotating shaft, the second rotating shaft and belt wheel transmission mechanism, wherein,
Described first rotating shaft and the second rotating shaft are rotatably arranged on casing respectively, and described first rotating shaft and the second rotating shaft are parallel to each other and the first rotating shaft is positioned at the below of the second rotating shaft;
Described first rotating shaft is connected by described belt wheel transmission mechanism with the second rotating shaft;
Described casing is respectively arranged with the first power source and installs through hole and the second power source installation through hole in the position corresponding to the first rotating shaft and the second rotating shaft, at the first power source, through hole or the second power source installation through hole installation power source are installed for selection, and then drive described first rotating shaft to rotate by described power source.
Preferably, described casing comprises the first casing and the second casing, and described second casing upper-lower position is arranged on the first casing adjustably;
Described first rotating shaft is rotatably arranged on described first casing, and described second rotating shaft is passed from the two side of the first casing and the laminating of the second casing, and one end that the second rotating shaft installs through hole away from the second power source is connected with described belt wheel transmission mechanism.
Preferably, described first casing is provided with multiple threaded hole, described second casing is respectively arranged with strip hole in the position of each described threaded hole corresponding to the first casing, each strip hole place all has the first bolt to be connected in the threaded hole of corresponding position through after described strip hole, thus the second casing and the first casing is linked together; Wherein, each strip hole is all vertically arranged, and each first bolt is all horizontally disposed with.
Preferably, the top of described first casing is connected with adjustment block by bolt group, described bolt group comprises the second bolt and the 3rd bolt, described adjustment block is fixedly connected on the top of described first casing by the second bolt, there is spacing in the bottom of described adjustment block and the top of described second casing, described 3rd bolt is through the top being fixedly connected on described second casing after described adjustment block; Wherein, described second bolt and the 3rd bolt are all vertically arranged; Turn described 3rd bolt, the upper-lower position of the second casing can be adjusted, thus adjustment is arranged on the height of the second rotating shaft on the second casing, and then adjust the pretightning force on the belt of described belt wheel transmission mechanism.
Preferably, described bolt group also comprises the 4th bolt vertically arranged, and the lower end of described 4th bolt can be resisted against on the top end face of described second casing, thus the height of restriction the second casing.
Preferably, described belt wheel transmission mechanism comprises large belt wheel, belt and small pulley, described belt wheel transmission mechanism comprises large belt wheel, belt and small pulley, described large belt wheel is fixedly mounted in described first rotating shaft by the first expansion sleeve, and described small pulley is fixedly mounted in described second rotating shaft by the second expansion sleeve.
Preferably, described second rotating shaft is installed on the second casing by two bearings, the first spacer ring, the second spacer ring, compression end cap and set nut;
Be provided with installation base in described second casing, installation base has been horizontally disposed with through hole, with making described second rotating shaft from through hole through the second casing and install described two bearings in described through hole;
Described two bearings is installed on two shaft shoulder places in the second rotating shaft respectively, and respectively by compression end cap and the outer ring compressing the screw in compression bearing on end cap, each bearing is axially fixed in described second rotating shaft;
Arrange about described two bearings, wherein, the inner ring of the bearing in left side is pressed on the corresponding shaft shoulder of the second rotating shaft by left set nut, the inner ring of the bearing on right side is pressed on the shaft shoulder of the second rotating shaft by the first spacer ring and the second set nut, and described left set nut and right clamping screw are all threaded in described second rotating shaft.
Preferably, the second spacer ring abutted with two bearings is respectively set, the end-play that the axial length adjustable two bearings changing described second spacer ring is installed between the outer ring of described two bearings.
Preferably, described power source is servomotor, or is jointly made up of servomotor and reductor.
Preferably, the belt of described belt gear is synchronous cog belt.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1) present invention achieves between the different kind of drive of lathe electrical and mechanical comprehensive Testing Platform and switch simply and rapidly;
2) the present invention is by changing servomotor or the installation site of the combination of motor and reductor, can realize fast test platform directly connecting, reductor connection and synchronous cog belt connect quick switching between three kinds of kinds of drive;
3) the present invention greatly extends the envelop of function of the test platform of lathe, simplifies system architecture and the adjustment blocked operation of test platform, reducing weight and the size of whole test platform, providing guarantee for carrying out experimental study quickly and easily.
Accompanying drawing explanation
Fig. 1 is direct connection for transmission mode structural representation of the present invention;
Fig. 2 is reductor connected mode structural representation of the present invention;
Fig. 3 is synchronous cog belt connected mode structural representation of the present invention
Fig. 4 is the structural representation the second casing of the present invention connecting power source;
Fig. 5 (a) is arranged on the structural representation on the first casing and the second casing for bolt group of the present invention;
Fig. 5 (b) is the D-D cut-open view in Fig. 5 (a);
Wherein: 1-first casing, 2-first expansion sleeve, 3-first rotating shaft, 4-first compresses end cap, 5-bearing, the large belt wheel of 6-, 7-synchronous cog belt, 8-compresses end cap, 9-second expansion sleeve, 10-small pulley, 11-rolling bearing, 12-adjustment block, 13-first spacer ring, 14-second spacer ring, 15-second compresses end cap, 16-set nut, 17-second rotating shaft, 18-second casing, 19-shaft coupling, 20-servomotor, 21-reductor, 22-changes web joint, 23-shaft coupling, 101-first power source installs through hole, and 102-second power source installs through hole.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
As shown in Fig. 1 ~ Fig. 5, a kind of transmission switching device shifter, comprises casing, the first rotating shaft 3, second rotating shaft 17 and belt wheel transmission mechanism, wherein,
Supporter based on described casing, for supporting each part on it;
Described first rotating shaft 3 and the second rotating shaft 17 are rotatably arranged on casing respectively, and described first rotating shaft 3 and the second rotating shaft 17 are parallel to each other and the first rotating shaft 3 is positioned at the below of the second rotating shaft 17;
Described first rotating shaft 3 is connected by described belt wheel transmission mechanism with the second rotating shaft 17; Preferably, described belt wheel transmission mechanism comprises large belt wheel 6, belt and small pulley 10, and described large belt wheel 6 is fixedly mounted in described first rotating shaft 3 by the first expansion sleeve 2, and described small pulley 10 is fixedly mounted in described second rotating shaft 17 by the second expansion sleeve 9.
Described casing is respectively arranged with the first power source and installs through hole 101 and the second power source installation through hole 102 in the position corresponding to the first rotating shaft 3 and the second rotating shaft 17, at the first power source, through hole 101 or the second power source installation through hole 102 place installation power source are installed for selection, and then drive described first rotating shaft 3 to rotate by described power source.Preferably, described power source is servomotor 20, or is jointly made up of servomotor 20 and reductor 21.
Further, described casing comprises the first casing 1 and the second casing 18, and described second casing 18 upper-lower position is arranged on the first casing 1 adjustably; Described first rotating shaft 3 is rotatably arranged on described first casing 1, described second rotating shaft 17 is passed from the two side of the first casing 1 and the laminating of the second casing 18, and one end that the second rotating shaft 17 installs through hole 102 away from the second power source is connected with described belt wheel transmission mechanism.Still more preferably, described first casing 1 is provided with multiple threaded hole, described second casing 18 is respectively arranged with strip hole 181 in the position of each described threaded hole corresponding to the first casing 1, each strip hole 181 place all has the first bolt 183 to be connected in the threaded hole of corresponding position through after described strip hole 181, thus the second casing 18 and the first casing 1 is linked together; Wherein, on the first bolt 183, also cross-under has pad 182; Each strip hole 181 is all vertically arranged, and each first bolt 183 is all horizontally disposed with.Like this, unscrew the first bolt 183, the second casing 18 is moved up and down relative to the first casing 1, can adjust the height of the second casing 18, and then tighten the first bolt 183, then the position of the second casing 18 can be fixed again.
Preferably, the top of described first casing 1 is connected with adjustment block 12 by bolt group, described bolt group comprises the second bolt 121 and the 3rd bolt 123, described adjustment block 12 is fixedly connected on the top of described first casing 1 by the second bolt 121, there is spacing in the bottom of described adjustment block 12 and the top of described second casing 18, described 3rd bolt 123 is through the top being fixedly connected on described second casing 18 after described adjustment block 12; Wherein, described second bolt 121 and the 3rd bolt 123 are all vertically arranged; Turn described 3rd bolt 123, the upper-lower position of the second casing 18 can be adjusted, thus adjustment is arranged on the height of the second rotating shaft 17 on the second casing 18, and then adjust the pretightning force on the belt of described belt gear.Preferably, the belt of described belt gear is synchronous cog belt 7.
Further, described bolt group also comprises the 4th bolt 122 vertically arranged, and the lower end of described 4th bolt 122 can be resisted against on the top end face of described second casing 18, thus the height of restriction the second casing 18.After the pretightning force of belt being adjusted to the right place by the 3rd bolt 123, tighten the end face that the 4th bolt 122 pushes against the second casing 18, just the position of the second casing 18 firmly can be fixed.
Further, described second rotating shaft 17 is installed on the second casing 18 by two second bearing 11, first spacer ring 13, second spacer rings 14, compression end cap 8 and set nut 16; Be provided with installation base in described second casing 18, installation base has been horizontally disposed with through hole, with making described second rotating shaft 17 from through hole through the second casing 18 and install two second described bearings 11 in described through hole;
Described two second bearings 11 are installed on two shaft shoulder places in the second rotating shaft 17 respectively, and respectively by compression end cap 8 and the outer ring compressing screw in compression second bearing 11 on end cap 8, so that each second bearing 11 is axially fixed in described second rotating shaft 17;
Described two second bearings about 11 are arranged, wherein, the inner ring of second bearing 11 in left side is pressed on by left set nut 16 on the corresponding shaft shoulder of the second rotating shaft 17, the inner ring of second bearing 11 on right side is pressed on the shaft shoulder of the second rotating shaft 17 by the first spacer ring 13 and the second set nut 16, and described left set nut 16 and right clamping screw are all threaded in described second rotating shaft 17.Preferably, the second spacer ring 14 abutted with two second bearings 11 is respectively set, the end-play that the axial length adjustable two bearings changing described second spacer ring 14 is installed between the outer ring of described two second bearings 11.
Power source is for inputting required driving power, and it directly can adopt servomotor 20 (as Fig. 1, Fig. 3), also on the basis of servomotor 20, can install a reductor 21 (as Fig. 2) further additional.Reductor 21 adopts planetary reducer, also can adopt the reductor 21 of other types.Reductor 21 is connected on the first casing 1 or the second casing 18 by a conversion web joint 22.
First casing 1 is the support section of this apparatus for fast switching, and the first rotating shaft 3, second casing 18 is all arranged on the first casing 1, and large belt wheel 6, small pulley 10, second rotating shaft 17 etc. are also indirectly arranged on the first casing 1.Wherein the first rotating shaft 3 is arranged on the first casing 1 by two clutch shaft bearings 5, and compresses clutch shaft bearing 5 to fix the position of the first rotating shaft 3 with the first compression end cap 84.Large belt wheel 6 is arranged in the first rotating shaft 3 by the first expansion sleeve 2.First the clutch shaft bearing 5 on the right side in the first rotating shaft 3 is installed in the first casing 1 during installation, then large belt wheel 6 is put into box cavity, penetrate subsequently the first rotating shaft 3 and on the first expansion sleeve 2, and compress the through hole of end cap 84 tighten screw on the first expansion sleeve 2 to be fixed in the first rotating shaft 3 by large belt wheel 6 by installing first on the left of casing.Finally install left side clutch shaft bearing 5 and compress end cap 8, by the first rotating shaft 3 and on large belt wheel 6 be in place.
The right side of the first casing 1 also has a less cavity for holding the first shaft coupling 23, the right side wall of cavity is processed with the first power source and installs through hole 101.The diameter of the first power source installation through hole 101 is greater than the external diameter of the first shaft coupling 23, can be directly installed on the input shaft of the first rotating shaft 3 and power source by this installation through hole when therefore the first shaft coupling 23 is installed.
Small pulley 10 is mounted in the second rotating shaft 17 by two group of second expansion sleeve 9.Compress end cap 8 to be arranged on small pulley 10 by screw, tighten the screw compressed on end cap 8, then compress the gap shrinks between end cap 8 and small pulley 10, the second expansion sleeve 9 swelling small pulley 10 and the second rotating shaft 17.
The upper right wall of the first casing 1 has a through hole, and its aperture is greater than the external diameter of small pulley 10.When second rotating shaft 17 is installed, first the second rotating shaft 17 is installed in the second casing 18 according to the method described in epimere, again small pulley 10 is installed on the left end of the second rotating shaft 17 according to aforesaid method, then the left side of the second rotating shaft 17 is passed the through hole on the first casing 1 top together with small pulley 10, and make the second casing 18 be close on the end face of the first casing 1 upper right.
The wall that second casing 18 and the first casing 1 fit respectively extends one section of wallboard to the left and right, has four oval slotted eyes thereon, and be fixed on the first casing 1 by pad and the screw passed wherein, as shown in Figure 4.Wherein slotted hole structure allows the position of the second casing 18 can adjust relative to the first casing about 1, in order to ensure the tensioning action of synchronous cog belt 7.
The strainer of synchronous cog belt 7 by adjustment block 12 and on screw form, as shown in Figure 5.Adjustment block 12 is fixed on the first casing 1 by one group of screw, another two groups of screws and for adjusting the position of the second casing 18 relative to the first casing 1 to realize the tensioning of synchronous cog belt 7.Concrete adjustment process is as follows: adjustment block 12 is fastened on the first casing 1 by the group that tights a bolt; Unclamp the distance that bolt group is certain; The screw of the group that alternately tights a bolt; The adjustment process of continuous repetition first two steps, slow tensioning synchronous cog belt 7 until reach the pretightning force required by it, last fastening bolt group.
Be illustrated in figure 1 direct connection for transmission mode structural representation of the present invention.Now servomotor 20 is connected directly between on the first power source installation through hole 101 by bolt and pad, and the output shaft of motor is connected with the first rotating shaft 3 by the first shaft coupling 23; Adopt in the present embodiment and be directly connected with the first rotating shaft 3 without backlash elasticity shaft coupling.At this moment the power of servomotor 20 can be directly delivered to the topworks or mapping device such as ball-screw etc. of motion by apparatus of the present invention by the first shaft coupling 23, first rotating shaft 3.The second power source on second casing 18 is installed through hole 102 and is not connected power source, although now large belt wheel 6, small pulley 10, second rotating shaft 17 etc. is followed the first rotating shaft 3 owing to disassembling and is rotated together, but they can be converted to load rotating inertia when calculating to pay attention to, and can not experimental result be affected.
Be illustrated in figure 2 reductor 21 connected mode structural representation of the present invention.Now power source is the combination of servomotor 20 and reductor 21.First servomotor 20 and reductor 21 are assembled together, and then are arranged on by the output port of reductor 21 on conversion web joint 22, the first power source that the other end of conversion web joint 22 is connected to the first casing 1 by screw and pad is installed on through hole 101.The output shaft of reductor 21 is adopted in the present embodiment by the first shaft coupling 23 and is directly connected with the first rotating shaft 3 without backlash elasticity shaft coupling simultaneously.At this moment apparatus of the present invention are directly delivered to the topworks or mapping device such as ball-screw etc. of motion again by the first shaft coupling 23, first rotating shaft 3 after the power of servomotor 20 first can being slowed down by reductor 21.The second power source now on the second casing 18 is installed through hole 102 and is not connected power source.
Be illustrated in figure 3 the synchronous cog belt 7 connected mode structural representation of apparatus of the present invention.The second power source that now servomotor 20 is connected on the second casing 18 by bolt and pad is installed on through hole 102, and the output shaft of motor connects the second rotating shaft 17 by the second shaft coupling 19; Adopt in the present embodiment and be connected with the second rotating shaft 17 without backlash elasticity shaft coupling.At this moment the power of servomotor 20 is first outputted to the second rotating shaft 17 by the second shaft coupling 19 by apparatus of the present invention, be transferred to the first rotating shaft 3 after being slowed down by belt wheel and synchronous cog belt 7 again, finally by the first rotating shaft 3 by power transmission to the topworks moved or mapping device such as ball-screw etc.The second power source now on the first casing 1 is installed through hole 102 and is not connected power source.The ratio of gear of this kind of connected mode is identical with the ratio of gear of reductor 21 connected mode described in epimere.
Certain the present embodiment also can realize combination power source being changed into servomotor 20 and reductor 21 on the basis of synchronous cog belt 7 connected mode described in the preceding paragraph.Be arranged on by the output port of reductor 21 on conversion web joint 22, the second power source that the other end of conversion web joint 22 is connected on the second casing 18 by screw and pad is installed on through hole 102.The output shaft of reductor 21 is directly connected with the second rotating shaft 17 by the second shaft coupling 19 simultaneously.Thus realize reductor 21 connect be connected with synchronous cog belt 7 kind of drive combined.Because this kind of drive is actually rare in the machinery of reality is as lathe, the emphasis of yet not feeding drive experiments research, is not therefore classified as independent a kind of kind of drive in apparatus of the present invention.
This device is when testing, and the course of work is as follows:
Power source is first connected on this transmission switching device according to above-mentioned wherein a kind of connected mode by the feeding kind of drive of testing as required, again this transmission switching device is installed on experiment test platform, just can starts to test after adjusting the parameter of motor servo system and other equipment of experiment porch.Change the feeding kind of drive of experiment porch as needed, the installation site that only need change power source just can realize the quick switching of the feeding kind of drive
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a transmission switching device shifter, is characterized in that: comprise casing, the first rotating shaft, the second rotating shaft and belt wheel transmission mechanism, wherein,
Described first rotating shaft and the second rotating shaft are rotatably arranged on casing respectively, and described first rotating shaft and the second rotating shaft are parallel to each other and the first rotating shaft is positioned at the below of the second rotating shaft;
Described first rotating shaft is connected by described belt wheel transmission mechanism with the second rotating shaft;
Described casing is respectively arranged with the first power source and installs through hole and the second power source installation through hole in the position corresponding to the first rotating shaft and the second rotating shaft, at the first power source, through hole or the second power source installation through hole installation power source are installed for selection, and then drive described first rotating shaft to rotate by described power source.
2. a kind of transmission switching device shifter according to claim 1, is characterized in that: described casing comprises the first casing and the second casing, described second casing upper-lower position is arranged on the first casing adjustably;
Described first rotating shaft is rotatably arranged on described first casing, and described second rotating shaft is passed from the two side of the first casing and the laminating of the second casing, and one end that the second rotating shaft installs through hole away from the second power source is connected with described belt wheel transmission mechanism.
3. a kind of transmission switching device shifter according to claim 2, it is characterized in that: described first casing is provided with multiple threaded hole, described second casing is respectively arranged with strip hole in the position of each described threaded hole corresponding to the first casing, each strip hole place all has the first bolt to be connected in the threaded hole of corresponding position through after described strip hole, thus the second casing and the first casing is linked together; Wherein, each strip hole is all vertically arranged, and each first bolt is all horizontally disposed with.
4. a kind of transmission switching device shifter according to claim 2, it is characterized in that: the top of described first casing is connected with adjustment block by bolt group, described bolt group comprises the second bolt and the 3rd bolt, described adjustment block is fixedly connected on the top of described first casing by the second bolt, there is spacing in the bottom of described adjustment block and the top of described second casing, described 3rd bolt is through the top being fixedly connected on described second casing after described adjustment block; Wherein, described second bolt and the 3rd bolt are all vertically arranged; Turn described 3rd bolt, the upper-lower position of the second casing can be adjusted, thus adjustment is arranged on the height of the second rotating shaft on the second casing, and then adjust the pretightning force on the belt of described belt wheel transmission mechanism.
5. a kind of transmission switching device shifter according to claim 4, is characterized in that: described bolt group also comprises the 4th bolt vertically arranged, and the lower end of described 4th bolt can be resisted against on the top end face of described second casing, thus the height of restriction the second casing.
6. a kind of transmission switching device shifter according to claim 1, it is characterized in that: described belt wheel transmission mechanism comprises large belt wheel, belt and small pulley, described large belt wheel is fixedly mounted in described first rotating shaft by the first expansion sleeve, and described small pulley is fixedly mounted in described second rotating shaft by the second expansion sleeve.
7. a kind of transmission switching device shifter according to claim 2, is characterized in that: described second rotating shaft is installed on the second casing by two bearings, the first spacer ring, the second spacer ring, compression end cap and set nut;
Be provided with installation base in described second casing, installation base has been horizontally disposed with through hole, with making described second rotating shaft from through hole through the second casing and install described two bearings in described through hole;
Described two bearings is installed on two shaft shoulder places in the second rotating shaft respectively, and respectively by compression end cap and the outer ring compressing the screw in compression bearing on end cap, each bearing is axially fixed in described second rotating shaft;
Arrange about described two bearings, wherein, the inner ring of the bearing in left side is pressed on the corresponding shaft shoulder of the second rotating shaft by left set nut, the inner ring of the bearing on right side is pressed on the shaft shoulder of the second rotating shaft by the first spacer ring and the second set nut, and described left set nut and right clamping screw are all threaded in described second rotating shaft.
8. a kind of transmission switching device shifter according to claim 7, is characterized in that: arrange the second spacer ring abutted with two bearings respectively between the outer ring of described two bearings, the end-play that the axial length adjustable two bearings changing described second spacer ring is installed.
9. a kind of transmission switching device shifter according to claim 7, is characterized in that: described power source is servomotor, or is jointly made up of servomotor and reductor.
10. a kind of transmission switching device shifter according to claim 1, is characterized in that: the belt of described belt gear is synchronous cog belt.
CN201510530851.1A 2015-08-26 2015-08-26 One kind transmission switching device Expired - Fee Related CN105092228B (en)

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CN103471845A (en) * 2013-09-04 2013-12-25 青海大学 Numerical control machine tool main shaft loading device
CN103645064A (en) * 2013-12-25 2014-03-19 沈阳机床(集团)有限责任公司 Electromechanical coupling performance test board of feeding shaft of numerical control machine tool

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Publication number Priority date Publication date Assignee Title
US4685333A (en) * 1984-09-17 1987-08-11 Wilson Louis D Work station for working on workpieces for a plurality of operations
CN2640698Y (en) * 2003-09-05 2004-09-15 广州数控设备厂 Fast digital control improving structure of normal lathe
CN1640616A (en) * 2004-01-05 2005-07-20 福州大学 Machine tool high speed small-inertia milling-cutter feeding power driving mechanism
CN2801395Y (en) * 2005-06-07 2006-08-02 洛阳轴研科技股份有限公司 Motor shock absorbin device of precision grinding machine main shaft
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CN101514943A (en) * 2009-03-27 2009-08-26 北京工业大学 Platform for detecting the performance of automatic tool changer
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