CN104492558A - Film type hydraulic vibration dual-cylinder vibrating mill - Google Patents

Film type hydraulic vibration dual-cylinder vibrating mill Download PDF

Info

Publication number
CN104492558A
CN104492558A CN201410749518.5A CN201410749518A CN104492558A CN 104492558 A CN104492558 A CN 104492558A CN 201410749518 A CN201410749518 A CN 201410749518A CN 104492558 A CN104492558 A CN 104492558A
Authority
CN
China
Prior art keywords
plate
exciting
type hydraulic
vibration
diaphragm type
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.)
Granted
Application number
CN201410749518.5A
Other languages
Chinese (zh)
Other versions
CN104492558B (en
Inventor
杨小兰
刘极峰
张娜
汪震
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Institute of Technology
Original Assignee
Nanjing Institute of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Institute of Technology filed Critical Nanjing Institute of Technology
Priority to CN201410749518.5A priority Critical patent/CN104492558B/en
Publication of CN104492558A publication Critical patent/CN104492558A/en
Application granted granted Critical
Publication of CN104492558B publication Critical patent/CN104492558B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/14Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/24Driving mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The invention provides a film type hydraulic vibration dual-cylinder vibrating mill. The film type hydraulic vibration dual-cylinder vibrating mill comprises an upper cylinder body, a reset spring group, a film type hydraulic vibrator, a lower cylinder body and a base, wherein the film type hydraulic vibrator is arranged between the upper cylinder body and the lower cylinder body and comprises a film made of a flexible material, a vibration plate I and a vibration plate II; the vibration plate I and the vibration plate II are arranged in parallel; the film is arranged between the vibration plate I and the vibration plate II and forms an enclosed space for accommodating a liquid with the vibration plate I and the vibration plate II individually or together; the vibration plate I or the vibration plate II is provided with a channel; the enclosed space is communicated with a hydraulic source capable of outputting a liquid flow the direction of which can be changed periodically via a channel. A bearing is not required for the vibrating mill; a piston is not required for a hydraulic device; the vibrating mill is simple to manufacture, is convenient to maintain, can steplessly regulate the frequency and amplitude without stop, has no relevance between frequency regulation and amplitude regulation, is low in cost, is strong in vibration force, has no abrasion and leakage, does not need to dissipate heat, is uniform in vibration force distribution, is low in energy consumption, is very tiny in external vibration interference, and generates vibration by utilizing the film type hydraulic vibrator for milling operation.

Description

Diaphragm type hydraulic exciting dual-drum vibration mill
Technical field
The present invention relates to a kind of diaphragm type hydraulic exciting dual-drum vibration mill.
Background technology
Existing vibromill utilizes mechanical type vibrator or vibrating motor to make exciting source to produce vibration work, and mostly be non-near resonance type vibromill, its shortcoming is: when vibration force is large, during rotating speed height, one or two vibrator is not competent, therefore have to use multiple vibrator, and away from resonance point work, energy consumption is high, efficiency is low.
Above-mentioned situation causes existing oscillating grinding tool to have following deficiency:
1) lubrication of bearing, heat radiation, sealing and and axle between transmission etc. become very complicated, give manufacture, installation, maintenance brings a lot of difficulty, also reduces reliability.
2) amplitude that could adjust machine must be shut down.
3) vibration force of vibrator concentrates effect, and can not be uniformly distributed, this makes structure stress bad.
4) multiple stage vibrator parallel connection synchronous working is made to be difficult.
5) because oscillation intensity is comparatively large, there is a lot of dynamic loading to pass to ground, interference is caused to working environment.
Summary of the invention
The present invention aims to provide a kind of vibrator without the need to bearing, hydraulic means without the need to piston, low and vibration interference is the very little to external world vibromill of energy consumption, it utilizes diaphragm type hydraulic vibration exciter to produce vibration, carries out grinding work, solves the problems referred to above that present vibrator exists.
Technical solution of the present invention is:
A kind of diaphragm type hydraulic exciting dual-drum vibration mill, comprise upper shell, diaphragm type hydraulic vibration exciter, lower shell, base, diaphragm type hydraulic vibration exciter is located between upper shell, lower shell, and upper shell, diaphragm type hydraulic vibration exciter, lower shell set gradually in the vertical direction;
Diaphragm type hydraulic vibration exciter comprises film, two exciting plates be parallel to each other-and the exciting plate two that flexible material is made, and film is located between exciting plate-and exciting plate two; Film separately or with exciting plate-, exciting plate two is formed with the confined space of receiving fluids jointly; Confined space is by the hydraulic power source of the periodically variable liquid stream in channel connection exportable direction;
Stiffener plate-, stiffener plate two two sides in opposite directions all can be divided into three regions: the region a contacted all the time with film or liquid; With film or liquid discontiguous region b all the time; Other region c; Region a is not communicated with region b; Film and stiffener plate-, stiffener plate two can adopt bonding or fix with flange screw, or only contacting.
Further, upper shell, lower shell are formed by mill tube, side plate, base plate consolidation respectively, and the base plate of upper shell is connected with exciting plate one, and the base plate of lower shell is connected with exciting plate two.
Further, confined space is by passage coupling cock valve, straightway pump respectively, the other end of motor or other power-actuated switch valve, straightway pump is all communicated with liquid storage pool, liquid is sent to confined space from liquid storage pool by straightway pump continuously, switch valve periodically by liquid from confined space discharged to liquid storage pool, make the volume of the liquid in confined space, pressure periodically change.
Further, the plunger displacement pump of the periodically variable hydraulic power source employing of liquid flow path direction without check valve or the device of employing straightway pump and direction control circuit realization.
Further, exciting plate-, exciting plate two is separately installed with some back-moving spring groups, each back-moving spring group has at least one back-moving spring, threaded rod, at least one nut, at least one reset pressing plate, one end and the exciting plate of back-moving spring are fixed, reset pressing plate is positioned at the other end of back-moving spring, threaded rod freely passes the corresponding hole of back-moving spring and reset pressing plate and exciting plate, nut is positioned on the other end of pressing plate that threaded rod resets, and makes back-moving spring all be in pressured state at any time.
Further, described diaphragm type hydraulic vibration exciter is provided with shock-absorbing spring group, and described shock-absorbing spring group comprises seat under the shock-absorbing spring seat of honour, shock-absorbing spring, shock-absorbing spring, and the shock-absorbing spring seat of honour and threaded rod are fixed, and under shock-absorbing spring, seat is fixed on ground or frame lower.
The invention has the beneficial effects as follows: this kind of diaphragm type hydraulic exciting dual-drum vibration mill; without the need to bearing, hydraulic means without the need to piston, manufacture simple, easy to maintenance, stepless frequency modulation amplitude modulation, frequency and amplitude modulation onrelevant can not be shut down, cost is low, vibration force is large, without wear and tear, do not leak, without the need to dispelling the heat, vibration force is uniformly distributed, energy consumption is low and vibration interference is very little to external world; it utilizes diaphragm type hydraulic vibration exciter to produce vibration, carries out grinding work.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment diaphragm type hydraulic exciting dual-drum vibration mill;
Fig. 2 is the embodiment film structural representation bonding with stiffener plate two;
Fig. 3 is the structural representation that embodiment film and stiffener plate two flange are fixed;
Fig. 4 is the Near resonance oscillating structure chart of vibromill in embodiment;
Fig. 5 is the tube structure schematic diagram of vibromill in embodiment;
Wherein: 1, upper shell, 2, back-moving spring group, 3, diaphragm type hydraulic vibration exciter, 4, lower shell, 5, shock-absorbing spring group, 6, base, 7, switch valve, 8, motor, 9, liquid storage pool, 10, liquor pump, 11, conduit under fluid pressure;
1-1, mill tube, 1-2, side plate, 1-3, base plate;
2-1, nut, 2-2, reset pressing plate, 2-3,2-5, back-moving spring, 2-4, threaded rod;
3-1, exciting plate one, 3-2, film, 3-3, exciting plate two, 3-4, passage,
5-1, vibration damping pressing plate, 5-2, shock-absorbing spring, 5-3, lead, 5-4, lower seat.
Detailed description of the invention
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment
Diaphragm type hydraulic exciting dual-drum vibration mill is made up of upper shell 1, back-moving spring group 2, diaphragm type hydraulic vibration exciter 3, lower shell 4, shock-absorbing spring group 5, base 6, hydraulic means comprises switch valve 7, motor 8, liquid storage pool 9, liquor pump 10, conduit under fluid pressure 11, instead of general mechanical type vibrator with diaphragm type hydraulic vibration exciter 3.As shown in Figure 1.
From accompanying drawing 5, upper shell 1, lower shell 4 are formed by mill tube 1-1, side plate 1-2, base plate 1-3 consolidation respectively, can be symmetrical up and down.Upper shell 1, diaphragm type hydraulic vibration exciter 3, lower shell 4 set gradually in the vertical direction;
Diaphragm type hydraulic vibration exciter 3 is by exciting plate one 3-1, exciting plate two 3-3 and film 3-2 is formed by connecting, i.e. exciting plate, two exciting plates be parallel to each other, film 3-2 is with non-leakage, the soft exciting plate material not easily extended is made, switch valve 7 is driven by motor 8, liquor pump 10 can be that self-contained motor 8 drives, the base plate 1-3 of upper shell 1 and the upper plane of exciting plate one 3-1, the base plate 1-3 of lower shell 4 and the lower plane Joint of exciting plate two 3-3, film 3-2 and two exciting plate A ' in opposite directions, B ' face is tightly connected, can be bonding being tightly connected, as Fig. 2, also can be bolt, fixing being tightly connected of flange screw, as Fig. 3, can also be only contact and to be unfixedly tightly connected,
A ', B ' face all can be divided into three regions, as Fig. 2: the region a contacted all the time with film 3-2; With film 3-2 discontiguous region b all the time, other region c, region a is not communicated with region b, film 3-2 is only connected with flat board at region a, film 3-2 and two exciting plates constitute a closed space, can free bend with the discontiguous part of two exciting plates, thus the volume of this enclosure space is variable.Exciting plate-3-1 or exciting plate two 3-2 is provided with passage 3-4, and confined space is communicated with the hydraulic power source of the periodically variable liquid stream in exportable direction by passage 3-4.This enclosure space is connected with switch valve 7 with liquor pump 10 by conduit under fluid pressure 11, and switch valve 7 other end connects liquid storage pool 9, and pump is feed fluid constantly, and the liquid of enclosure space is periodically entered liquid storage pool 9 by switch valve 7.
Back-moving spring group 2 answers >=1 group, often group is by least 2 back-moving spring 2-3, 2-5, each 1 the reset pressing plate 2-2 in two ends, each 2 the nut 2-1 in two ends, a threaded rod 2-4 forms, 2 back-moving spring 2-3, 2-5 is installed on outside two exciting plates by threaded rod 2-4 respectively, back-moving spring 2-3, 2-5 two ends respectively with exciting plate, reset pressing plate 2-2 contacts, threaded rod 2-4 is freely through back-moving spring 2-3, 2-5, corresponding hole on reset pressing plate 2-2 and exciting plate, nut 2-1 is arranged on the outer end of reset pressing plate 2-2 on threaded rod 2-4, threaded rod 2-4 bottom with the vibration damping pressing plate 5-1 of shock-absorbing spring group 5 above concrete mutually, back-moving spring 2-3 is made by regulating pretension, 2-5 is in pressured state all the time.
The effect of back-moving spring group 2 is when liquid in film increases or reduce, make two exciting plates of diaphragm type hydraulic vibration exciter 3 up and down apart from suitably increasing or resetting in time, namely in film liquid return to liquid increase before position, ensure that grinding machine is in and vibrates duty normally.
Shock-absorbing spring group 5 answers >=1 group, often group is made up of at least 1 shock-absorbing spring 5-2,1 vibration damping pressing plate 5-1,2 lead 5-3, lower seat 5-4, as Fig. 4, concrete mutually above threaded rod 2-4 one end and vibration damping pressing plate 5-1, plane is consolidated with lead 5-3 respectively for shock-absorbing spring 5-2, vibration damping pressing plate 5-1 lower plane and lower seat 5-4, shock-absorbing spring 5-2 is installed between the vibration damping pressing plate 5-1 of shock-absorbing spring 5-2 and lower seat 5-4 by lead 5-3, lower seat 5-4 and base 6 concrete mutually, base 6 is fixed on ground.The effect of shock-absorbing spring group 5 be can reduce system vibration to the transmission of ground, and reduce consequent noise.
Embodiment reasonable design, the rigidity of adjustment back-moving spring 2-3,2-5 or the frequency of adjustment switch valve 7 can make system work under Near resonance oscillating state, thus the object reaching the large driving of small-power, reduce energy consumption, raise the efficiency.
Because film 3-2 makes with the material that not easily extends, so when liquid injection enclosure space, the pressure of film 3-2 internal liquid can change, and overcome the active force of back-moving spring 2-3,2-5 and other resistance makes the distance of two exciting plates increase; When valve is in opening state, under back-moving spring 2-3,2-5 effect, the liquid that the liquid of film 3-2 inside and pump export all will enter liquid storage pool 9 through valve, liquid pressure be declined, the distance of two exciting plates be reduced, thus completes a vibration cycles.The present invention is different from Normal hydraulic and pneumatic means: without the need to piston, thus there is not the sealing because piston causes, leakage, friction and wear.
Owing to not leaking, water can be used as medium.Enclosure space has very large work area, even if total so internal pressure little but vibration force can be very large, the Another reason that diaphragm type vibrator can be put to apply grinds with General Oscillation the situation requiring amplitude less to match.The cross section of the diaphragm type not edge in contact plate face is a semi arch, and its maximum radius R is slightly larger than exciting amplitude.
The stress of thin-film material is directly proportional to internal pressure and arc radius, as long as therefore arc radius is enough little, current material just can meet the requirement of strength of pressure to film 3-2.The rotating speed changing switch valve 7 can change vibration frequency, and the flow changing pump can change amplitude.Therefore the present invention infinitely can not shut down Frequency And Amplitude Modulation, and Frequency And Amplitude Modulation has nothing to do.
Because the vibration force of diaphragm type vibrator and cylindrical shell contact position is equally distributed, make system stress better; The relative motion of film 3-2 and two exciting plane is rolled and non-slip, so without friction and wear.Use thin material to manufacture diaphragm type, flexural fatigue can be reduced and damage.Because the vibration displacement of threaded rod 2-4 is directly proportional to the of poor quality of upper and lower plastid, therefore configuration quality exactly, add the effect of shock-absorbing spring 5-2, just can make machine to the vibration interference on ground no better than zero.

Claims (6)

1. a diaphragm type hydraulic exciting dual-drum vibration mill, it is characterized in that: comprise upper shell, diaphragm type hydraulic vibration exciter, lower shell, base, diaphragm type hydraulic vibration exciter is located between upper shell, lower shell, and upper shell, diaphragm type hydraulic vibration exciter, lower shell set gradually in the vertical direction;
Diaphragm type hydraulic vibration exciter comprises film, two exciting plates be parallel to each other-and the exciting plate two that flexible material is made, and film is located between exciting plate-and exciting plate two; Film separately or with exciting plate-, exciting plate two is formed with the confined space of receiving fluids jointly; Confined space is by the hydraulic power source of the periodically variable liquid stream in channel connection exportable direction;
Stiffener plate-, stiffener plate two two sides in opposite directions all can be divided into three regions: the region a contacted all the time with film or liquid; With film or liquid discontiguous region b all the time; Other region c; Region a is not communicated with region b; Film and stiffener plate-, stiffener plate two can adopt bonding or fix with flange screw, or only contacting.
2. diaphragm type hydraulic exciting dual-drum vibration mill as claimed in claim 1, it is characterized in that, upper shell, lower shell are formed by mill tube, side plate, base plate consolidation respectively, and the base plate of upper shell is connected with exciting plate one, and the base plate of lower shell is connected with exciting plate two.
3. diaphragm type hydraulic exciting dual-drum vibration mill as claimed in claim 2, it is characterized in that, confined space is by passage coupling cock valve, straightway pump respectively, the other end of motor or other power-actuated switch valve, straightway pump is all communicated with liquid storage pool, liquid is sent to confined space from liquid storage pool by straightway pump continuously, switch valve periodically by liquid from confined space discharged to liquid storage pool, make the volume of the liquid in confined space, pressure periodically change.
4. diaphragm type hydraulic exciting dual-drum vibration mill as claimed in claim 3, is characterized in that: the plunger displacement pump of the periodically variable hydraulic power source employing of liquid flow path direction without check valve or the device of employing straightway pump and direction control circuit realization.
5. the diaphragm type hydraulic exciting dual-drum vibration mill as described in any one of claim 1-4, it is characterized in that: exciting plate-, exciting plate two is separately installed with some back-moving spring groups, each back-moving spring group has at least one back-moving spring, a threaded rod, at least one nut, at least one reset pressing plate, one end and the exciting plate of back-moving spring are fixed, reset pressing plate is positioned at the other end of back-moving spring, threaded rod freely passes the corresponding hole of back-moving spring and reset pressing plate and exciting plate, nut is positioned on the other end of pressing plate that threaded rod resets, back-moving spring is made all to be in pressured state at any time.
6. diaphragm type hydraulic exciting dual-drum vibration mill as claimed in claim 5, it is characterized in that: described diaphragm type hydraulic vibration exciter is provided with shock-absorbing spring group, described shock-absorbing spring group comprises seat under the shock-absorbing spring seat of honour, shock-absorbing spring, shock-absorbing spring, the shock-absorbing spring seat of honour and threaded rod are fixed, and under shock-absorbing spring, seat is fixed on ground or frame lower.
CN201410749518.5A 2014-12-10 2014-12-10 Diaphragm type hydraulic exciting dual-drum vibration mill Active CN104492558B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410749518.5A CN104492558B (en) 2014-12-10 2014-12-10 Diaphragm type hydraulic exciting dual-drum vibration mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410749518.5A CN104492558B (en) 2014-12-10 2014-12-10 Diaphragm type hydraulic exciting dual-drum vibration mill

Publications (2)

Publication Number Publication Date
CN104492558A true CN104492558A (en) 2015-04-08
CN104492558B CN104492558B (en) 2017-10-24

Family

ID=52934060

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410749518.5A Active CN104492558B (en) 2014-12-10 2014-12-10 Diaphragm type hydraulic exciting dual-drum vibration mill

Country Status (1)

Country Link
CN (1) CN104492558B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107096616A (en) * 2017-07-03 2017-08-29 南京工程学院 Pitches not simultaneously coil spring and hybrid density medium dual-drum vibration mill
CN107138239A (en) * 2017-07-03 2017-09-08 南京工程学院 Simultaneously coil spring is not ground convexity with hybrid density medium bitubular double-mass vibrating
CN107175154A (en) * 2017-07-03 2017-09-19 南京工程学院 Convexity not simultaneously coil spring and hybrid density medium dual-drum vibration mill

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87216245U (en) * 1987-12-07 1988-10-05 华南工学院 Planetary vibrating mill for preparation of ultramicron
CN201434038Y (en) * 2009-06-10 2010-03-31 无锡锡南铸造机械有限公司 Air spring device
CN201613165U (en) * 2010-03-08 2010-10-27 南京工程学院 Multilevel eccentric-block single-cylinder vibration mill
CN201848278U (en) * 2010-11-23 2011-06-01 山东华特磁电科技股份有限公司 Vibration mill
WO2012144944A1 (en) * 2011-04-21 2012-10-26 Procedo Enterprises Etablissement Vibratory mill
CN203778150U (en) * 2014-03-18 2014-08-20 广东惠机制药装备有限公司 Vibrating-type medicine superfine grinding unit
CN204485957U (en) * 2014-12-10 2015-07-22 南京工程学院 Diaphragm type hydraulic exciting dual-drum vibration mill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87216245U (en) * 1987-12-07 1988-10-05 华南工学院 Planetary vibrating mill for preparation of ultramicron
CN201434038Y (en) * 2009-06-10 2010-03-31 无锡锡南铸造机械有限公司 Air spring device
CN201613165U (en) * 2010-03-08 2010-10-27 南京工程学院 Multilevel eccentric-block single-cylinder vibration mill
CN201848278U (en) * 2010-11-23 2011-06-01 山东华特磁电科技股份有限公司 Vibration mill
WO2012144944A1 (en) * 2011-04-21 2012-10-26 Procedo Enterprises Etablissement Vibratory mill
CN203778150U (en) * 2014-03-18 2014-08-20 广东惠机制药装备有限公司 Vibrating-type medicine superfine grinding unit
CN204485957U (en) * 2014-12-10 2015-07-22 南京工程学院 Diaphragm type hydraulic exciting dual-drum vibration mill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107096616A (en) * 2017-07-03 2017-08-29 南京工程学院 Pitches not simultaneously coil spring and hybrid density medium dual-drum vibration mill
CN107138239A (en) * 2017-07-03 2017-09-08 南京工程学院 Simultaneously coil spring is not ground convexity with hybrid density medium bitubular double-mass vibrating
CN107175154A (en) * 2017-07-03 2017-09-19 南京工程学院 Convexity not simultaneously coil spring and hybrid density medium dual-drum vibration mill

Also Published As

Publication number Publication date
CN104492558B (en) 2017-10-24

Similar Documents

Publication Publication Date Title
CN104492558A (en) Film type hydraulic vibration dual-cylinder vibrating mill
CN204294304U (en) Diaphragm type hydraulic exciting Near resonance oscillating type four vibromills
CN104475198A (en) Film-type hydraulic vibration single-drum vibration mill
CN102359533A (en) Piezoelectric stack type self-energized adjustable hydraulic damper
CN204485957U (en) Diaphragm type hydraulic exciting dual-drum vibration mill
CN104405812B (en) Energy feedback shock absorber with damping stiffness changing along with road condition
CN204656647U (en) Diaphragm type hydraulic exciting Near resonance oscillating type dual-drum vibration mill
CN204469812U (en) Diaphragm type hydraulic exciting single barrel vibrating mill
CN204656686U (en) Diaphragm type hydraulic exciting Near resonance oscillating type single barrel vibrating mill
CN106950690A (en) A kind of primary mirror of astronomical telescope hydraulic support device
CN104475199A (en) Film-type two-way hydraulic vibration near-resonance type double-drum vibrating mill
CN102588395B (en) Variable frequency hydraulic pipe network type excitation device
CN204485958U (en) Diaphragm type bidirectional hydraulic exciting Near resonance oscillating type dual-drum vibration mill
CN204448222U (en) Diaphragm type bidirectional hydraulic exciting dual-drum vibration mill
CN204294305U (en) Diaphragm type hydraulic exciting four vibromills
CN204278169U (en) Diaphragm type hydraulic vibration exciter vibrating forming machine
CN104492560A (en) Film type hydraulic vibration near-resonance dual-cylinder vibrating mill
CN204493338U (en) Diaphragm type hydraulic vibration exciter vibrating table
CN104475212A (en) Film-type hydraulic vibration near-resonance type single-drum vibrating mill
CN204300010U (en) Diaphragm type hydraulic vibration exciter
CN104492580A (en) Film type bidirectional hydraulic vibration dual-cylinder vibrating mill
CN104475200A (en) Film-type hydraulic vibration near-resonance type four-drum vibrating mill
CN104492559A (en) Film type hydraulic vibration four-cylinder vibrating mill
CN210769259U (en) Multipurpose diaphragm pump capable of adapting to multiple working conditions
CN104481962A (en) Vibrating table with thin film type hydraulic vibration exciter

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant