CN205110065U - Novel mechanical type vibration exciter - Google Patents
Novel mechanical type vibration exciter Download PDFInfo
- Publication number
- CN205110065U CN205110065U CN201520878396.XU CN201520878396U CN205110065U CN 205110065 U CN205110065 U CN 205110065U CN 201520878396 U CN201520878396 U CN 201520878396U CN 205110065 U CN205110065 U CN 205110065U
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- CN
- China
- Prior art keywords
- eccentric
- splined shaft
- connecting rod
- spline
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of mechanical vibration excitors, are related to the technical field that mechanical oscillation carry out vibration-testing to object. Including transmission device, bearing, driving device, shaft coupling, connect cover, eccentric one, eccentric two, bearing (ball) cover, splined shaft one, splined shaft two, eccentric three, eccentric four and cabinet, it is characterised in that the eccentric includes eccentric block
With
, corresponding eccentricity is respectively
With
, wherein eccentricity
With eccentricity
Reversed arrangement, eccentricity
With excited frequency
Increase and increase, by the calculation formula of exciting force
Known to, with excited frequency
Increase, eccentric block
The reversed exciting force generated is to eccentric block
The exciting force partial offset generated in vertical direction, to realize when vibration excitor changes from low to high, the effect that the maximum amplitude of exciting force fluctuates in smaller range.
Description
Technical field
The utility model relates to a kind of mechanical vibrator, particularly relates to vibration-testing is carried out in mechanical oscillation technical field to object.
Background technology
Although traditional eccentric formula vibrator structure is simple, easy installation and removal, by exciting force computing formula
known, due to the quality of eccentric block
and eccentric throw
size immobilize, exciting force
size with excited frequency
increase with
ratio increase, to such an extent as to work as
time less,
less, do not have exciting effect, and work as
time larger, larger
likely cause the damage of test specimen.In order to avoid the generation of above-mentioned situation, the utility model develops a kind of mechanical vibrator, and wherein eccentric comprises eccentric block
with
, corresponding eccentric throw is respectively
with
, wherein eccentric throw
with eccentric throw
reversed arrangement, eccentric throw
with excited frequency
increase and increase, by exciting force computing formula
known, along with excited frequency
increase, eccentric block
the reverse exciting force produced is to eccentric block
the exciting force partial offset produced in vertical direction, thus realize when vibrator changes from low to high, the effect that the maximum amplitude of exciting force fluctuates in more among a small circle.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of mechanical vibrator, the reverse exciting force that mass produces and eccentric block exciting force partial offset in vertical direction, realize when vibrator changes from low to high, the maximum amplitude interior effect fluctuated of exciting force.
Mentality of designing of the present utility model realizes like this, whole device is spacing by self structure, wherein initial position compressed by the left side of spline housing in the right side of spline housing in eccentric one and eccentric two under the action of the spring and in eccentric four in the right side of spline housing and eccentric three left side of spline housing compress carry out spacing, now eccentric one, eccentric two, pilot sleeve in eccentric three and eccentric four is separated with corresponding spline housing and leaves certain interval, final position compressed by the left side of the right side of pilot sleeve in eccentric one and eccentric four and corresponding spline housing and in eccentric two and eccentric three left side of pilot sleeve and the right side of corresponding spline housing compress carry out spacing, spline housing now in eccentric one and eccentric two is separated and leaves certain interval, eccentric three is separated with the spline housing in eccentric four and leaves certain interval.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of mechanical vibrator, comprise casing, drive unit, transmission device, splined shaft one, splined shaft two, the second exciting agency being arranged on the first exciting agency on splined shaft one and being arranged on splined shaft two, described drive unit is fixedly mounted on outside casing, drive unit is rotated backward by actuator drives splined shaft one and splined shaft two, described splined shaft one is parallel with splined shaft two to be installed in casing, described first exciting agency is identical with the structure of the second exciting agency, and install in symmetrical up and down, described first exciting agency comprises and is arranged on eccentric one on splined shaft one and eccentric two, second exciting agency comprises and is arranged on eccentric three on splined shaft two and eccentric four, eccentric one and eccentric two symmetrical, eccentric three and eccentric four symmetrical, described eccentric one, eccentric two, eccentric three is identical with eccentric four structure.
Described eccentric one comprises connecting rod fixed cover, spring, pilot sleeve, spline housing, eccentric block, flat key, circlip, ball spline, connecting rod one, mass and connecting rod two, inner spline groove and the splined shaft one of described connecting rod fixed cover are connected, the two ends of connecting rod one are connected with eccentric block and connecting rod two respectively by bearing pin, connecting rod one two ends being positioned at inner side are connected with the earrings set by spline housing and connecting rod two respectively by bearing pin, the two ends of connecting rod two are connected with the earrings set by connecting rod fixed cover and mass respectively by bearing pin, ball spline is connected by the keyway set by flat key and spline housing, ball spline and splined shaft one are by spline fitted and carry out axial location by circlip, eccentric block is connected on spline housing by the mode of welding, inner spline groove set by pilot sleeve coordinates with splined shaft one to be installed, spring housing is loaded on pilot sleeve.
Described transmission device comprises gear one and gear two, splined shaft one is connected by shaft coupling with the output shaft of motor, splined shaft one and splined shaft two pass through bearing parallel support in casing, gear one is connected with splined shaft one by flat key, and engage with gear two, gear two is connected with splined shaft two by flat key.
Described drive unit comprises motor and frequency converter, and frequency converter rotates according to the way of output drive motors carried set by encoder, and the flange of motor is bolted on the flange connecting cover, and the output shaft of motor is connected by flat key and shaft coupling.
Described casing is symmetrical split type structure, comprises upper box lid and lower box, and lower box and the tank wall of upper box lid are provided with dead eye, bolt hole and install the installing hole being connected cover and bearing (ball) cover, and the flange connecting cover is bolted on casing.
The beneficial effect adopting technique scheme to produce is: (1) described eccentric comprises eccentric block
with
, corresponding eccentric throw is respectively
with
, wherein eccentric throw
with eccentric throw
reversed arrangement, eccentric throw
with excited frequency
increase and increase, by the computing formula of exciting force
known, along with excited frequency
increase, eccentric block
the reverse exciting force produced is to eccentric block
the exciting force partial offset produced in vertical direction, thus realize when vibrator changes from low to high, the effect that the maximum amplitude of exciting force fluctuates in more among a small circle; (2) whole eccentric adopts symmetrical structure, ensure that the geometric center place making a concerted effort to be positioned at whole device of produced exciting force; (3) friction between the ball spline that adopts of whole device and ball spline shaft is rolling friction, and resistance is very little.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model final position;
Fig. 2 is the partial enlarged drawing of I in the utility model final position;
Fig. 3 is the structural representation of the utility model initial position;
Fig. 4 is the partial enlarged drawing of I in the utility model initial position;
Fig. 5 is the structural representation of eccentric;
Fig. 6 is the structural representation of transmission device;
Fig. 7 is the structural representation of drive unit;
Fig. 8 is the plan structure schematic diagram of lower box;
Fig. 9 is the left TV structure schematic diagram of casing;
Figure 10 is the sectional structure schematic diagram connecting cover;
Figure 11 is the left TV structure schematic diagram of connecting rod fixed cover;
Figure 12 is the main TV structure schematic diagram of connecting rod fixed cover;
Figure 13 is the left TV structure schematic diagram of pilot sleeve;
Figure 14 is the main TV structure schematic diagram of pilot sleeve;
Figure 15 is that overall structure schematic diagram is looked on a left side for spline housing and eccentric block;
Figure 16 is that the master of spline housing and eccentric block looks overall structure schematic diagram;
Wherein: 1 transmission device; 2 bearings; 3 drive units; 4 shaft couplings; 5 connect cover; 6 eccentrics one; 601 connecting rod fixed covers; 6011 connecting rod fixed cover inner spline grooves; 6012 connecting rod fixed cover earrings; 602 springs; 603 pilot sleeves; 6031 pilot sleeve inner spline grooves; 604 spline housings; 6041 spline housing keyways; 6042 spline housing earrings; 605 eccentric blocks; 606 flat keys; 607 circlips; 608 ball splines; 609 connecting rods one; 610 masses; 611 connecting rods two; 7 eccentrics two; 8 bearing (ball) covers; 9 splined shafts one; 10 splined shafts two; 11 eccentrics three; 12 eccentrics four; 13 casings; 14 gears one; 15 gears two.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present utility model, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from other modes described here and implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is not by the restriction of following public specific embodiment.
Embodiment one
As Figure 1-4, a kind of mechanical vibrator, comprise transmission device 1, bearing 2, drive unit 3, shaft coupling 4, connect cover 5(see Figure 10), eccentric 1, eccentric 27, bearing (ball) cover 8, splined shaft 1, splined shaft 2 10, eccentric 3 11, eccentric 4 12 and casing 13, described eccentric 1 is symmetrical with eccentric 27, eccentric 1, eccentric 27 and eccentric 4 12, eccentric about 3 11 symmetry.The power that described drive unit 3 exports drives transmission device 1 to rotate by shaft coupling 4, and transmission device 1 drives eccentric 1, eccentric 27, eccentric 3 11 and eccentric 4 12 synchronous axial system.
As shown in Figure 5, described eccentric 1 comprises connecting rod fixed cover 601, spring 602, pilot sleeve 603, spline housing 604, eccentric block 605, flat key 606, circlip 607, ball spline 608, connecting rod 1, mass 610 and connecting rod 2 611.Inner spline groove 6011(set by connecting rod fixed cover 601 is see accompanying drawing 11-12) be connected with splined shaft 1, the two ends of connecting rod 1 are connected with eccentric block 605 and connecting rod 2 611 respectively by bearing pin, the two ends of inboard Sinks 1 are connected with the earrings 6042 set by spline housing 604 and connecting rod 2 611 respectively by bearing pin, the two ends of connecting rod 2 611 are connected with the earrings 6012 set by connecting rod fixed cover 601 and mass 610 respectively by bearing pin, ball spline 608 passes through flat key 606 with the keyway 6041(set by spline housing 604 see accompanying drawing 15-16) be connected, ball spline 608 and splined shaft 1 are connected by spline fitted and carry out axial location by circlip 607, eccentric block 605 is connected on spline housing 604 by the mode of welding, inner spline groove 6031(set by pilot sleeve 603 is see accompanying drawing 13-14) coordinate with splined shaft 1 and install, spring 602 is set on pilot sleeve 603.
As shown in Figure 6, described transmission device 1 comprises gear 1 and gear 2 15.Described splined shaft 1 is connected by shaft coupling 4 with the output shaft of motor 31, splined shaft 1 and splined shaft 2 10 are supported by bearing 2, gear 1 is connected by flat key and splined shaft 1, and engages with gear 2 15, and gear 2 15 is connected by flat key and splined shaft 2 10.
As shown in Figure 7, described drive unit 3 comprises motor 31 and frequency converter 32, and the flange of motor 31 is bolted on the flange connecting cover 5, and the output shaft of motor 31 is connected by flat key and shaft coupling 4.
Frequency converter 32 carries encoder and presets rate-adaptive pacemaker mode drive motors 31 according to vibration-testing requirement and transmission device 1 rotates, and realizes exciting function.
As Figure 8-9, described casing 13 is dissection type, comprises upper box lid 134 and lower box 133, and tank wall is provided with dead eye 131, bolt hole 132 and installs the installing hole 135 connecting cover 5 and bearing (ball) cover 8, and the flange connecting cover 5 is bolted on casing 13.
In the utility model, whole device is spacing by self structure, wherein initial position compressed by the left side of spline housing 604 in the right side of spline housing 604 in eccentric 1 and eccentric 27 under the effect of spring 602 and in eccentric 4 12 in the right side of spline housing 604 and eccentric 3 11 left side of spline housing 604 compress carry out spacing, now eccentric 1, eccentric 27, pilot sleeve 603 in eccentric 3 11 and eccentric 4 12 is separated with corresponding spline housing 604 and leaves certain interval, final position compressed by the left side of the right side of pilot sleeve 603 in eccentric 1 and eccentric 4 12 and corresponding spline housing 604 and in eccentric 27 and eccentric 3 11 left side of pilot sleeve 603 and the right side of corresponding spline housing 604 compress carry out spacing, spline housing 604 now in eccentric 1 and eccentric 27 is separated and leaves certain interval, eccentric 3 11 is separated with the spline housing 604 in eccentric 4 12 and leaves certain interval.
Eccentric of the present utility model comprises eccentric block
with
, corresponding eccentric throw is respectively
with
, wherein eccentric throw
with eccentric throw
reversed arrangement, eccentric throw
with excited frequency
increase and increase, by the computing formula of exciting force
known, along with excited frequency
increase, eccentric block
the reverse exciting force produced is to eccentric block
the exciting force partial offset produced in vertical direction, thus realize when vibrator changes from low to high, the effect that the maximum amplitude of exciting force fluctuates in more among a small circle; Whole eccentric adopts symmetrical structure, ensure that the geometric center place making a concerted effort to be positioned at whole device of produced exciting force; Friction between the ball spline that whole device adopts and ball spline shaft is rolling friction, and resistance is very little.
Claims (5)
1. a mechanical vibrator, it is characterized in that: comprise casing (13), drive unit (3), transmission device (1), splined shaft one (9), splined shaft two (10), the second exciting agency being arranged on the first exciting agency on splined shaft one (9) and being arranged on splined shaft two (10), described drive unit (3) is fixedly mounted on casing (13) outside, drive unit (3) drives splined shaft one (9) and splined shaft two (10) to rotate backward by transmission device (1), described splined shaft one (9) is parallel with splined shaft two (10) to be installed in casing (13), described first exciting agency is identical with the structure of the second exciting agency, and install in symmetrical up and down, described first exciting agency comprises and is arranged on eccentric one (6) on splined shaft one (9) and eccentric two (7), second exciting agency comprises and is arranged on eccentric three (11) on splined shaft two (10) and eccentric four (12), eccentric one (6) and eccentric two (7) symmetrical, eccentric three (11) and eccentric four (12) symmetrical, described eccentric one (6), eccentric two (7), eccentric three (11) is identical with eccentric four (12) structure.
2. a kind of mechanical vibrator according to claim 1, it is characterized in that described eccentric one (6) comprises connecting rod fixed cover (601), spring (602), pilot sleeve (603), spline housing (604), eccentric block (605), flat key (606), circlip (607), ball spline (608), connecting rod one (609), mass (610) and connecting rod two (611), inner spline groove (6011) and the splined shaft one (9) of described connecting rod fixed cover (601) are connected, the two ends of connecting rod one (609) are connected with eccentric block (605) and connecting rod two (611) respectively by bearing pin, connecting rod one (609) two ends being positioned at inner side are connected with the earrings (6042) set by spline housing (604) and connecting rod two (611) respectively by bearing pin, the two ends of connecting rod two (611) are connected with the earrings (6012) set by connecting rod fixed cover (601) and mass (610) respectively by bearing pin, ball spline (608) is connected by flat key (606) and the keyway (6041) set by spline housing (604), ball spline (608) also carries out axial location by circlip (607) with splined shaft one (9) by spline fitted, eccentric block (605) is connected on spline housing (604) by the mode of welding, inner spline groove (6031) set by pilot sleeve (603) coordinates with splined shaft one (9) to be installed, spring (602) is set on pilot sleeve (603).
3. a kind of mechanical vibrator according to claim 1, it is characterized in that: described transmission device (1) comprises gear one (14) and gear two (15), splined shaft one (9) is connected by shaft coupling (4) with the output shaft of motor (31), splined shaft one (9) and splined shaft two (10) by bearing (2) parallel support in casing (13), gear one (14) is connected with splined shaft one (9) by flat key, and engage with gear two (15), gear two (15) is connected with splined shaft two (10) by flat key.
4. a kind of mechanical vibrator according to claim 1, it is characterized in that: described drive unit (3) comprises motor (31) and frequency converter (32), frequency converter (32) rotates according to the way of output drive motors (31) carried set by encoder, the flange of motor (31) is bolted on the flange connecting cover (5), and the output shaft of motor (31) is connected by flat key and shaft coupling (4).
5. a kind of mechanical vibrator according to claim 1, it is characterized in that: described casing (13) is symmetrical split type structure, comprise upper box lid (134) and lower box (133), lower box (133) and the tank wall of upper box lid (134) are provided with dead eye (131), bolt hole (132) and install the installing hole (135) being connected cover (5) and bearing (ball) cover (8), and the flange connecting cover (5) is bolted on casing (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878396.XU CN205110065U (en) | 2015-11-04 | 2015-11-04 | Novel mechanical type vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878396.XU CN205110065U (en) | 2015-11-04 | 2015-11-04 | Novel mechanical type vibration exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205110065U true CN205110065U (en) | 2016-03-30 |
Family
ID=55565713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520878396.XU Withdrawn - After Issue CN205110065U (en) | 2015-11-04 | 2015-11-04 | Novel mechanical type vibration exciter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205110065U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214927A (en) * | 2015-11-04 | 2016-01-06 | 石家庄铁道大学 | Mechanical vibrator |
| CN107029976A (en) * | 2017-06-23 | 2017-08-11 | 石家庄铁道大学 | A kind of vibrator |
| CN111570246A (en) * | 2020-05-25 | 2020-08-25 | 南京工程学院 | Intermittent axial torsion combined type mechanical torsional vibration table |
-
2015
- 2015-11-04 CN CN201520878396.XU patent/CN205110065U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214927A (en) * | 2015-11-04 | 2016-01-06 | 石家庄铁道大学 | Mechanical vibrator |
| CN105214927B (en) * | 2015-11-04 | 2017-07-11 | 石家庄铁道大学 | Mechanical vibrator |
| CN107029976A (en) * | 2017-06-23 | 2017-08-11 | 石家庄铁道大学 | A kind of vibrator |
| CN111570246A (en) * | 2020-05-25 | 2020-08-25 | 南京工程学院 | Intermittent axial torsion combined type mechanical torsional vibration table |
| CN111570246B (en) * | 2020-05-25 | 2021-06-01 | 南京工程学院 | Intermittent axial torsion combined type mechanical torsional vibration table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20170711 |