CN112044721A - Four-axis combined vibration force device - Google Patents
Four-axis combined vibration force device Download PDFInfo
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- CN112044721A CN112044721A CN202010823512.3A CN202010823512A CN112044721A CN 112044721 A CN112044721 A CN 112044721A CN 202010823512 A CN202010823512 A CN 202010823512A CN 112044721 A CN112044721 A CN 112044721A
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- 230000005284 excitation Effects 0.000 claims 3
- 238000004806 packaging method and process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
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Abstract
The invention discloses a four-axis combined vibration force device, which comprises: the box, install first main shaft, first driven shaft, second driven shaft and second main shaft in proper order side by side in the box, first, install first driving gear and second driving gear on the second main shaft respectively, install first driven gear and second driven gear that intermeshing and respectively with first driving gear and second driving gear meshing on first, the second driven shaft respectively, first, the second main shaft all runs through the box and is connected with drive arrangement respectively, first eccentric block is installed to first main shaft, the second eccentric block is installed to the second main shaft. The first and second eccentric blocks are arranged at the two ends of the first and second main shafts in a driving mode and driven by the driving device to rotate to generate vibration, the first and second main shafts and the first and second driven shafts are arranged in parallel, so that the contact area between the first and second main shafts and the vibration table is increased, the required vibration time is reduced, the amplitude is reduced, and the required exciting force is convenient to adjust due to the design of the eccentric blocks at the two ends.
Description
The technical field is as follows:
the invention relates to the technical field of vibrators, in particular to a four-axis combined vibration force exciting device.
Background art:
the working part of the common vibrator on the market at present is a rod-shaped hollow cylinder, an eccentric vibrator is arranged in the vibrator, the vibrator is driven by a motor to rotate at a high speed to generate high-frequency micro-amplitude vibration, the vibration frequency can reach 12000-15000 times/min, the vibration effect is good, the structure is simple, and the service life is long. It is suitable for vibrating beam, column, wall and other members and large volume concrete.
When the concrete is mixed by a concrete mixer to cast a member, air bubbles in the concrete must be removed and tamped to make the concrete compact and combined, thereby eliminating the phenomena of honeycomb pitted surface and the like of the concrete, improving the strength of the concrete and ensuring the quality of the concrete member. A concrete vibrator is an apparatus for vibrating and tamping concrete by generating frequent vibration using a certain device as a vibration source by means of power and transmitting the vibration to the concrete. The common concrete vibrator is designed into a two-shaft structure, and the shaft is of an eccentric structure, so that the processing difficulty is high.
In view of the above, the present inventors propose the following.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a four-axis combined vibration force device.
In order to solve the technical problems, the invention adopts the following technical scheme: this four-axis is united and is swashed dynamic force device includes: the box, install first main shaft, first driven shaft, second driven shaft and second main shaft in proper order side by side in the box, first main shaft with install first driving gear and second driving gear on the second main shaft respectively, first driven shaft with install on the second driven shaft respectively intermeshing and respectively with first driving gear with first driven gear and second driven gear of second driving gear meshing, first main shaft with the second main shaft all runs through the box is connected with drive arrangement respectively, at least one first eccentric block that is used for producing vibrations is installed to first main shaft at least one end, at least one second eccentric block that is used for producing vibrations is installed to second main shaft at least one end.
Further, in the above technical solution, the first eccentric block is installed at both ends of the first main shaft, and the second eccentric block is installed at both ends of the second main shaft.
Furthermore, in the above technical solution, two first eccentric blocks are installed at two ends of the first main shaft, and two second eccentric blocks are installed at two ends of the second main shaft.
Further, in the above technical solution, the driving device includes a first driving device and a second driving device; and a first driving wheel connected with the first driving device and used for driving the first main shaft to rotate is installed at one end of the first main shaft, and a second driving wheel connected with the second driving device and used for driving the second main shaft to rotate is installed at one end of the second main shaft.
Further, in the above technical solution, the first eccentric block is mounted at the end portion of the first main shaft and located outside the first driving wheel, and the second eccentric block is mounted at the end portion of the second main shaft and located outside the second driving wheel.
Further, in the above technical solution, the first eccentric block includes a collar portion for being sleeved on the first main shaft, a projection portion formed on one side of the collar portion, and a connecting portion formed on one side of the collar portion and located at an opening between the projection portion and the collar portion, the connecting portion is provided with a first mounting hole for being fixedly connected with the projection portion; the second eccentric block is identical in structure with the first eccentric block.
Furthermore, in the above technical solution, the case body includes a case body, an upper cover plate and a lower cover plate mounted on the upper and lower ends of the case body, first end covers disposed on both sides of the case body and used for encapsulating the first driven shaft and the second driven shaft, and second end covers sleeved on the first main shaft and the second main shaft and fixed on both sides of the case body, and second mounting holes are disposed on four corners of the case body.
Furthermore, in the above technical solution, the first main shaft is a stepped shaft, one end of the first driving gear abuts against a shaft shoulder at the middle of the first main shaft, and the other end of the first driving gear abuts against and is fixed by a first shaft sleeve sleeved on the first main shaft; the second main shaft is a stepped shaft, one end of the second driving gear is pressed against a shaft shoulder in the middle of the second main shaft, and the other end of the second driving gear is pressed and fixed through a fourth shaft sleeve sleeved on the second main shaft; the first driven shaft is a stepped shaft, one end of the first driven gear is pressed against a shaft shoulder in the middle of the first driven shaft, and the other end of the first driven gear is pressed and fixed through a second shaft sleeve sleeved on the first driven shaft; the second driven shaft is a stepped shaft, one end of the second driven gear is pressed against a shaft shoulder in the middle of the second driven shaft, and the other end of the second driven gear is fixedly pressed against a third shaft sleeve on the second driven shaft in a sleeved mode.
Furthermore, in the above technical solution, the first shaft sleeve, the second shaft sleeve, the third shaft sleeve and the fourth shaft sleeve are all provided with two mutually abutting portions.
Further, in the above technical solution, the first driving wheel is a belt pulley or a sprocket, and the second driving wheel is a belt pulley or a sprocket.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: according to the invention, the first main shaft, the first driven shaft, the second driven shaft and the second main shaft are arranged in parallel and are matched with the first driving gear, the first driven gear, the second driven gear and the second driving gear, so that a four-shaft structure is formed, the first eccentric block and the second eccentric block which are arranged at two ends of the first main shaft and the second main shaft are driven by the driving device to rotate to generate vibration, because the four shafts are arranged in parallel, the contact area with the vibration table is increased, the vibration time in the processing process is reduced, the vibration amplitude is reduced and stabilized, and meanwhile, the design of the eccentric blocks at two ends is adopted, so that the required exciting force can be conveniently adjusted. Secondly, because the shaft joint and the gear are processed more simply, the processing difficulty coefficient is reduced, the production and assembly can be carried out quickly, most enterprises can independently produce and/or assemble, and the cost is reduced.
Description of the drawings:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an internal structural view of the present invention;
FIG. 4 is a front view of the present invention;
FIG. 5 is a perspective view of a first eccentric mass according to the present invention.
Description of reference numerals:
31 box 311 case body 312 upper cover plate
313 lower cover plate 314 first end cap 315 second end cap
316 second mounting hole 321 first main shaft 3211 first driving gear
3212 first sleeve 322, first driven shaft 3221, first driven gear
3222 second shaft sleeve 323, second driven shaft 3231 and second driven gear
3232 third sleeve 324 second spindle 3241 second driving gear
3242 fourth shaft sleeve 33 first eccentric block 331 clamping ring part
332 projection 333 with an opening 334
335 first mounting hole 34 second eccentric block 351 first driving wheel
352 second driving wheel
The specific implementation mode is as follows:
the invention is further illustrated below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1 to 5, a four-axis combined vibration force device includes: the box 31, install first main shaft 321, first driven shaft 322, second driven shaft 323 and second main shaft 324 in the box 31 in proper order in parallel, first main shaft 321 with install first driving gear 3211 and second driving gear 3241 on the second main shaft 324 respectively, first driven shaft 322 with install on the second driven shaft 323 mutual meshing respectively and respectively with first driving gear 3211 with the meshing of second driving gear 3241 first driven gear 3221 and second driven gear 3231, first main shaft 321 with second main shaft 324 all runs through box 31 and is connected with drive arrangement respectively, at least one first eccentric block 33 that is used for producing vibrations is installed to at least one end of first main shaft 321, at least one second eccentric block 34 that is used for producing vibrations is installed to at least one end of second main shaft 324. The first main shaft 321, the first driven shaft 322, the second driven shaft 323 and the second main shaft 324 are arranged in parallel, and are matched with the first driving gear 3211, the first driven gear 3221, the second driven gear 3231 and the second driving gear 3241 to form a four-shaft structure, the first eccentric block 33 and the second eccentric block 34 which are arranged at two ends of the first main shaft 321 and the second main shaft 324 are driven by the driving device to rotate to generate vibration, because the four shafts are arranged in parallel, the contact area of the four shafts with a vibration table is increased, the vibration time in the machining process is reduced, the vibration amplitude is reduced and stable, meanwhile, the design of the eccentric blocks at two ends is adopted, and the required exciting force can be conveniently adjusted. Secondly, because the shaft joint and the gear are processed more simply, the processing difficulty coefficient is reduced, the production and assembly can be carried out quickly, most enterprises can independently produce and/or assemble, and the cost is reduced.
The first eccentric block 33 is mounted at both ends of the first main shaft 321, and the second eccentric block 34 is mounted at both ends of the second main shaft 324. Two first eccentric blocks 33 are mounted at two ends of the first main shaft 321, and two second eccentric blocks 34 are mounted at two ends of the second main shaft 324. The first eccentric block 33 and the second eccentric block 324 at two ends of the first main shaft 321 and the second main shaft 324 are symmetrically installed, so that the amplitude can be reduced, the first main shaft 321 and the second main shaft 324 are stressed more uniformly, the abrasion is reduced, the mutual abrasion among the first driving gear 3211, the first driven gear 3221, the second driven gear 3231 and the second driving gear 3241 can be reduced, and the service life is prolonged.
The driving device comprises a first driving device and a second driving device; a first driving wheel 351 connected with the first driving device and used for driving the first main shaft 321 to rotate is installed at one end of the first main shaft 321, and a second driving wheel 352 connected with the second driving device and used for driving the second main shaft 324 to rotate is installed at one end of the second main shaft 324. Wherein, first drive arrangement and second drive arrangement are the motor, it is rotatory with second drive wheel 351 to drive first drive wheel 352 through the belt, and then drive first main shaft 321 and second main shaft 324 and rotate, and set up first driven shaft 322 and second driven shaft 323 between first main shaft 321 and second main shaft 324 and be the transition shaft, through installing epaxial gear intermeshing, make first main shaft 321 and second main shaft 324 realize synchronous rotation, in order to guarantee that first main shaft 321 and second main shaft 324 frequency of shaking and amplitude are unanimous, make the vibrations effect better, simultaneously, first driven shaft 322 and second driven shaft 323 also can produce synchronous vibrations thereupon, and then increase vibrations area, promote vibrations effect and stability.
The first eccentric mass 33 is mounted on the end of the first main shaft 321 and located outside the first driving wheel 351, and the second eccentric mass 34 is mounted on the end of the second main shaft 324 and located outside the second driving wheel 352.
The first eccentric block 33 comprises a clamping ring part 331 for sleeving the first main shaft 321, a convex block part 332 formed on one side of the clamping ring part 331, and a connecting part 334 formed on one side of the clamping ring part 331 and located at an opening 333 between the convex block part 332 and the clamping ring part 331, wherein a first mounting hole 335 for connecting and fixing with the convex block part 332 is formed in the connecting part 334; the second eccentric mass 34 is identical in structure to the first eccentric mass 33.
The box 31 includes a box body 311, an upper cover 312 and a lower cover 313 that are mounted on the upper and lower ends of the box body 311, a first end cap 314 that is disposed on both sides of the box body 311 and is used for encapsulating the first driven shaft 322 and the second driven shaft 323, and a second end cap 315 that is sleeved on the first main shaft 321 and the second main shaft 324 and is fixed on both sides of the box body 311, wherein the four corners of the box body 311 are respectively provided with a second mounting hole 316.
The first main shaft 321 is a stepped shaft, one end of the first driving gear 3211 abuts against a shaft shoulder at the middle of the first main shaft 321, and the other end of the first driving gear 3211 abuts against and is fixed by a first shaft sleeve 3212 sleeved on the first main shaft 321; the second main shaft 324 is a stepped shaft, one end of the second driving gear 3241 abuts against a shaft shoulder at the middle part of the second main shaft 324, and the other end of the second driving gear 3241 abuts against and is fixed by a fourth shaft sleeve 3242 sleeved on the second main shaft 324; the first driven shaft 322 is a stepped shaft, one end of the first driven gear 3221 abuts against a shaft shoulder at the middle part of the first driven shaft 322, and the other end of the first driven gear 3221 abuts against and is fixed by a second shaft sleeve 3222 sleeved on the first driven shaft 322; the second driven shaft 323 is a stepped shaft, one end of the second driven gear 3231 abuts against a shaft shoulder at the middle of the second driven shaft 323, and the other end of the second driven gear 3231 abuts against and is fixed by a third shaft sleeve 232 which is sleeved on the second driven shaft 323.
The first shaft sleeve 3212, the second shaft sleeve 3222, the third shaft sleeve 3232 and the fourth shaft sleeve 3242 are all provided with two mutually abutting parts.
The first driving wheel 351 is a pulley or a sprocket, and the second driving wheel 352 is a pulley or a sprocket. The belt pulley is adopted in the embodiment, and the belt has elasticity, so that the belt is not easily broken by vibration or falls off from the belt pulley in the vibration process, and the vibration stability is ensured.
In summary, when the present invention works, the first driving wheel 351 and the second driving wheel 352 are respectively connected to the motor through the belt, the motor respectively drives the first main shaft 321 and the second main shaft 324 to rotate, the first main shaft 321 and the second main shaft 324 respectively drive the first eccentric block 33 and the second eccentric block 34 in the rotating process, and the first main shaft 321 and the second main shaft 324 vibrate due to the dynamic balance unbalance of the first eccentric block 33 and the second eccentric block 34 in the rotating process, so as to drive the present invention to vibrate.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. A four-axis combined vibration force device is characterized by comprising: a box body (31), a first main shaft (321), a first driven shaft (322), a second driven shaft (323) and a second main shaft (324) are sequentially installed in the box body (31) in parallel, a first driving gear (3211) and a second driving gear (3241) are respectively installed on the first main shaft (321) and the second main shaft (324), a first driven gear (3221) and a second driven gear (3231) which are mutually meshed and respectively meshed with the first driving gear (3211) and the second driving gear (3241) are respectively installed on the first driven shaft (322) and the second driven shaft (323), the first main shaft (321) and the second main shaft (324) penetrate through the box body (31) and are respectively connected with a driving device, at least one first eccentric block (33) used for generating vibration is installed at least one end of the first main shaft (321), at least one second eccentric block (34) for generating vibration is arranged at least one end of the second main shaft (324).
2. The four-axis combined vibration force device according to claim 1, wherein: the first eccentric block (33) is installed at two ends of the first main shaft (321), and the second eccentric block (34) is installed at two ends of the second main shaft (324).
3. The four-axis combined vibration force device according to claim 2, wherein: two first eccentric blocks (33) are installed at two ends of the first main shaft (321), and two second eccentric blocks (34) are installed at two ends of the second main shaft (324).
4. The four-axis combined excitation vibration force device according to claim 3, wherein: the driving device comprises a first driving device and a second driving device; and a first driving wheel (351) connected with the first driving device and used for driving the first main shaft (321) to rotate is installed at one end of the first main shaft (321), and a second driving wheel (352) connected with the second driving device and used for driving the second main shaft (324) to rotate is installed at one end of the second main shaft (324).
5. The four-axis combined vibration force device according to claim 5, wherein: the first eccentric mass (33) is mounted at the end of the first main shaft (321) and located outside the first drive wheel (351), and the second eccentric mass (34) is mounted at the end of the second main shaft (324) and located outside the second drive wheel (352).
6. A four-axis combined vibration force device according to any of claims 1 to 5, wherein: the first eccentric block (33) comprises a clamping ring part (331) sleeved on the first main shaft (321), a convex block part (332) formed on one side of the clamping ring part (331), and a connecting part (334) formed on one side of the clamping ring part (331) and located at an opening (333) between the convex block part (332) and the clamping ring part (331), wherein a first mounting hole (335) for connecting and fixing with the convex block part (332) is formed in the connecting part (334); the second eccentric block (34) is identical in structure to the first eccentric block (33).
7. The four-axis combined excitation force device according to claim 6, wherein: the box body (31) comprises a box body (311), an upper cover plate (312) and a lower cover plate (313) which are arranged at the upper end and the lower end of the box body (311), first end covers (314) which are arranged at two sides of the box body (311) and used for packaging the first driven shaft (322) and the second driven shaft (323), and second end covers (315) which are sleeved on the first main shaft (321) and the second main shaft (324) and fixed at two sides of the box body (311), wherein second mounting holes (316) are formed in four corners of the box body (311).
8. The four-axis combined vibration force device according to claim 7, wherein: the first main shaft (321) is a stepped shaft, one end of the first driving gear (3211) is pressed against a shaft shoulder in the middle of the first main shaft (321), and the other end of the first driving gear (3211) is pressed and fixed through a first shaft sleeve (3212) sleeved on the first main shaft (321); the second main shaft (324) is a stepped shaft, one end of the second driving gear (3241) is pressed against a shaft shoulder in the middle of the second main shaft (324), and the other end of the second driving gear (3241) is pressed and fixed through a fourth shaft sleeve (3242) sleeved on the second main shaft (324); the first driven shaft (322) is a stepped shaft, one end of the first driven gear (3221) is pressed against a shaft shoulder in the middle of the first driven shaft (322), and the other end of the first driven gear (3221) is pressed and fixed through a second shaft sleeve (3222) sleeved on the first driven shaft (322); the second driven shaft (323) is a stepped shaft, one end of the second driven gear (3231) is pressed against a shaft shoulder in the middle of the second driven shaft (323), and the other end of the second driven gear (3231) is pressed and fixed through a third shaft sleeve (3232) sleeved on the second driven shaft (323).
9. The four-axis combined vibration force device according to claim 8, wherein: the first shaft sleeve (3212), the second shaft sleeve (3222), the third shaft sleeve (3232) and the fourth shaft sleeve (3242) are all provided with two parts which are mutually abutted.
10. The four-axis combined excitation force device according to claim 6, wherein: the first drive wheel (351) is a pulley or sprocket and the second drive wheel (352) is a pulley or sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823512.3A CN112044721A (en) | 2020-08-17 | 2020-08-17 | Four-axis combined vibration force device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823512.3A CN112044721A (en) | 2020-08-17 | 2020-08-17 | Four-axis combined vibration force device |
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| CN112044721A true CN112044721A (en) | 2020-12-08 |
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| CN202010823512.3A Pending CN112044721A (en) | 2020-08-17 | 2020-08-17 | Four-axis combined vibration force device |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2070191A (en) * | 1980-02-20 | 1981-09-03 | Ind Vibrators Ltd | Vibrator motor weights |
| JPH0652969U (en) * | 1992-12-18 | 1994-07-19 | 株式会社東洋機械製作所 | Three-dimensional vibrator |
| KR20020032491A (en) * | 2002-04-09 | 2002-05-03 | 박용기 | Variable vibrating device of apparatus for screening construction wastes |
| CN2910452Y (en) * | 2006-05-19 | 2007-06-13 | 黎凡七 | Viberation welding apparatus |
| CN101708622A (en) * | 2009-12-17 | 2010-05-19 | 高成法 | Vibration box of brick making machine |
| CN202290531U (en) * | 2011-10-14 | 2012-07-04 | 西安船舶工程研究院有限公司 | Eccentric block for vibration exciter |
| US20130283941A1 (en) * | 2012-04-27 | 2013-10-31 | Martin Engineering Company | Vibratory Device with Repositionable Weights and Method of Extending the Useful Life of Vibratory Devices |
| CN203778327U (en) * | 2014-03-26 | 2014-08-20 | 北京圆之翰煤炭工程设计有限公司 | Vibrator |
| CN104708313A (en) * | 2015-02-09 | 2015-06-17 | 山西平阳重工机械有限责任公司 | Inertia vibration generator system assembly method |
| CN206170267U (en) * | 2016-11-08 | 2017-05-17 | 包头市海罗水泥制品机械有限公司 | Brick machine vibrator with external eccentric block |
| CN110743771A (en) * | 2019-09-12 | 2020-02-04 | 浙江浙矿重工股份有限公司 | Combined vibration exciter with internal and external eccentric blocks |
| CN210647159U (en) * | 2019-09-30 | 2020-06-02 | 河北金吉御建材制造有限公司 | Suspension type vibration exciter |
| CN213133896U (en) * | 2020-08-17 | 2021-05-07 | 南阳市百斯特液压机械有限公司 | Four-axis combined vibration force device |
-
2020
- 2020-08-17 CN CN202010823512.3A patent/CN112044721A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2070191A (en) * | 1980-02-20 | 1981-09-03 | Ind Vibrators Ltd | Vibrator motor weights |
| JPH0652969U (en) * | 1992-12-18 | 1994-07-19 | 株式会社東洋機械製作所 | Three-dimensional vibrator |
| KR20020032491A (en) * | 2002-04-09 | 2002-05-03 | 박용기 | Variable vibrating device of apparatus for screening construction wastes |
| CN2910452Y (en) * | 2006-05-19 | 2007-06-13 | 黎凡七 | Viberation welding apparatus |
| CN101708622A (en) * | 2009-12-17 | 2010-05-19 | 高成法 | Vibration box of brick making machine |
| CN202290531U (en) * | 2011-10-14 | 2012-07-04 | 西安船舶工程研究院有限公司 | Eccentric block for vibration exciter |
| US20130283941A1 (en) * | 2012-04-27 | 2013-10-31 | Martin Engineering Company | Vibratory Device with Repositionable Weights and Method of Extending the Useful Life of Vibratory Devices |
| CN203778327U (en) * | 2014-03-26 | 2014-08-20 | 北京圆之翰煤炭工程设计有限公司 | Vibrator |
| CN104708313A (en) * | 2015-02-09 | 2015-06-17 | 山西平阳重工机械有限责任公司 | Inertia vibration generator system assembly method |
| CN206170267U (en) * | 2016-11-08 | 2017-05-17 | 包头市海罗水泥制品机械有限公司 | Brick machine vibrator with external eccentric block |
| CN110743771A (en) * | 2019-09-12 | 2020-02-04 | 浙江浙矿重工股份有限公司 | Combined vibration exciter with internal and external eccentric blocks |
| CN210647159U (en) * | 2019-09-30 | 2020-06-02 | 河北金吉御建材制造有限公司 | Suspension type vibration exciter |
| CN213133896U (en) * | 2020-08-17 | 2021-05-07 | 南阳市百斯特液压机械有限公司 | Four-axis combined vibration force device |
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