CN110196137A - A kind of plate-like counterweight loading mechanism - Google Patents
A kind of plate-like counterweight loading mechanism Download PDFInfo
- Publication number
- CN110196137A CN110196137A CN201910387487.6A CN201910387487A CN110196137A CN 110196137 A CN110196137 A CN 110196137A CN 201910387487 A CN201910387487 A CN 201910387487A CN 110196137 A CN110196137 A CN 110196137A
- Authority
- CN
- China
- Prior art keywords
- counterweight
- plate
- code bar
- drawing code
- overlap joint
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/26—Counterweights; Poise-weights; Sets of weights; Holders for the reception of weights
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Warehouses Or Storage Devices (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of plate-like counterweight loading mechanisms, plate-like counterweight and weighing section and loading and unloading part including several stackings, edge equipped with flange；The weighing section includes the weight tray for holding up the plate-like counterweight weighing；The loading and unloading part includes being distributed at least three vertically arranged mutually isostructural drawing code bars (16) of plate-like counterweight (22) periphery；Multiple drawings code bar (16) the synchronized links vertical driving unit moved up and down in a manner of around own axis respectively；The flange setting for drawing code bar (16) to correspond to each layer plate-like counterweight (22) in the axial direction overlaps convex disk (95), and it overlaps convex disk (95) to rotate one week all overlapping since the plate-like counterweight (22) and each layer convex disk (95) of overlap joint to the drawing code bar (16), the convex disk (95) of overlap joint of each layer from top to bottom and the plate-like counterweight (22) are detached from overlap joint one by one.Plate-like counterweight loading mechanism of the present invention has the characteristics that flexible operation, compact-sized, moderate cost.
Description
Technical field
The present invention relates to Weighing mechanisms, more specifically to a kind of plate-like counterweight loading mechanism.
Background technique
In physical quantity detection field, it is often necessary to detection system pressure.Pressure is the important technical parameter in industrial production
One of, pressure gauge is the instrument for measuring pressure.Various forms of pressure gauges, pressure sensor, pressure transmitter are pressure
The common instrument of detection, application are transmitted throughout chemical industry, petroleum, aerospace, automobile, power generation, medium, supply water gas supply etc. almost
The relevant field of all fluids.Pressure gauge performance is directly related to the quality of testing result, in order to guarantee the detection essence of pressure gauge
Degree, it is necessary to regularly metering be carried out to pressure gauge and verified.If pressure is undesirable, production efficiency not only will affect, reduce
Product quality, or even also will cause serious safety accident, so pressure measurement has special status in the industrial production.Cause
This needs to carry out pressure gauge regularly pressure measurement and calibrates, and due to the substantial amounts of pressure gauge, this requires pressure gauges to measure
Calibration is convenient and efficient, efficiently and accurately.Therefore, pressure gauge will be verified when leaving the factory or using after a certain period of time, be used
Instrument be piston manometer.
Piston manometer integrates pressure and makes pressure and pressure calibration, is equipped with the counterweight of appropriate accuracy, can be to tested pair
Verification metering as carrying out corresponding precision.The pressure-loaded of piston manometer is applied by counterweight.Chinese patent
201410229031.4 be related to a kind of independent assortment raise the price automatically device, 201710373500.3 be related to a kind of automatic sequence and raise the price
Mechanism, 201410227718.4 are related to a kind of sequence and raise the price device.Tubular counterweight or plate-like counterweight is utilized in this three patents
Load, is applicable to piston manometer.Problem is that loading mechanism is complicated, manufacturing cost is high, inconvenient.
Summary of the invention
The present invention provides a kind of flexible operation, compact-sized, moderate cost plate-like counterweight loading mechanism.
In order to achieve the above object, the present invention provides a kind of plate-like counterweight loading mechanism, including several stackings, edge are equipped with
The plate-like counterweight and weighing section of flange and loading and unloading part；The weighing section includes holding up the plate-like counterweight to claim
The weight tray of weight.Wherein, the loading and unloading part include be distributed in plate-like counterweight periphery it is vertically arranged at least three
A mutually isostructural drawing code bar；Multiple drawing code bars are connected in a manner of rotating synchronously around own axes up and down together respectively
Mobile vertical driving unit.It is each it is described draw code bar by fixed toothed belt be attached around the whole drawing code bars and
Toothed belt on the outside of the plate-like counterweight.The flange setting diameter for drawing code bar to correspond to each layer plate-like counterweight in the axial direction
To the outside convex disk of overlap joint, the flange faying surface of each layer of the convex disk of the overlap joint and the plate-like counterweight with the drawing code bar by
Under supreme direction become larger so that since the plate-like counterweight with each layer convex disk of overlap joint all overlap joint to described
Code bar is drawn to rotate one week, the convex disk of overlap joint of each layer from top to bottom and the plate-like counterweight are detached from overlap joint one by one.Wherein, one
A described one end for drawing code bar, which is provided with, drives the drawing code bar angle controller for drawing code bar around axis rotation.
The plate-like counterweight be it is discoid, faying surface be the plate-like counterweight and each layer convex disk of overlap joint oneself contact to
The fan-shaped surface of disengaging, size can be determined with the angle of disk surface sector.Under preferred embodiment, described convex disk such as Fig. 1 of overlap joint
It show around the incomplete disk for drawing code rod axis；For the load for guaranteeing top layer's plate-like counterweight, the overlap joint of top layer is convex
The relatively described disk for drawing one side direction of code bar of disk all lacks, to guarantee that the convex disk of the overlap joint of top layer can be complete
The disengaging of plate-like counterweight described in total detachment and top layer.
Under preferred embodiment, one of them it is described draw code bar one end be provided with by light barrier, photoelectric sensor form with
Grating principle measure it is described drawing code bar turned position so that it is determined that the plate-like counterweight stress state raster unit.
Under preferred embodiment, vertical driving unit includes one and realizes the intermediate plate moved up and down by driving assembly driving；Often
The one drawing code bar is arranged in the intermediate plate by a bearing, and by positioning element and the intermediate plate vertical opposite
It is fixed.
Under preferred embodiment, the plate-like counterweight is supported in by toothed belt idle pulley outward on the inside of the circular toothed belt
It is external.
Plate-like counterweight loading mechanism of the present invention has the characteristics that flexible operation, compact-sized, moderate cost.
Detailed description of the invention
Fig. 1 is the arragement construction schematic diagram for combining counterweight loading mechanism counterweight.
Fig. 2 is enlarged structure schematic diagram at A in Fig. 1.
Fig. 3 is enlarged structure schematic diagram at B in Fig. 1.
Fig. 4 is the sizing specification schematic diagram for combining tubular counterweight in counterweight loading mechanism.
Fig. 5 is combination counterweight loading mechanism overall structure diagram.
Fig. 6 is the counterweight loading principle schematic diagram for combining counterweight loading mechanism.
Fig. 7 is the load guiding principle structural schematic diagram for combining counterweight loading mechanism.
Fig. 8 is the overlooking structure diagram of plate-like counterweight stress state of the present invention.
Fig. 9 is three first state structural schematic diagrams for drawing code bar to realize the load of three plate-like counterweights.
Figure 10 is three the second status architecture schematic diagrames for drawing code bar to realize the load of three plate-like counterweights.
Figure 11 is three third state structural schematic diagrams for drawing code bar to realize the load of three plate-like counterweights.
Figure 12 is three the 4th status architecture schematic diagrames for drawing code bar to realize the load of three plate-like counterweights.
Figure 13 is Fig. 8 tri- overlooking structure diagrams for drawing code bar to realize the load of three plate-like counterweights.
Figure 14 is the side structure schematic view that code bar is drawn in Figure 13.
Figure 15 is the overlooking structure diagram drawn at the top of code bar in Figure 13.
Figure 16 is four overlooking structure diagrams for drawing code bar to realize the load of four plate-like counterweights.
Figure 17 is the side structure schematic view that code bar is drawn in Figure 16.
Figure 18 is five overlooking structure diagrams for drawing code bar to realize the load of five plate-like counterweights.
Figure 19 is the side structure schematic view that code bar is drawn in Figure 18.
Figure 20 is the principle of device schematic diagram that gas nozzle blows pallet counterweight.
Figure 21 is the state diagram that pallet counterweight rotates counterclockwise.
Figure 22 is the state diagram that pallet counterweight rotates clockwise.
Figure 23 is a kind of grating setting structure figure.
Figure 24 is partial enlarged view in Figure 21 centre circle.
Figure 25 is partial enlarged view in Figure 22 centre circle.
Figure 26 is another grating setting structure figure.
Figure 27 is the setting principle structural schematic diagram of periphery guiding driving in present invention combination counterweight loading mechanism.
Figure 28 is the supplementing structure schematic diagram of guiding driving setting principle in Figure 27.
Figure 29 is the structural schematic diagram that opposite Figure 28 promotes state.
Figure 30 is the structural schematic diagram that opposite Figure 28 and Figure 29 further promotes inspecting state.
Figure 31 is the arragement construction schematic diagram of present invention combination counterweight loading mechanism indsole subordinate's plate.
Specific embodiment
Counterweight loading mechanism, including connection lower piston bar 92 are combined as shown in Fig. 1,7,27-31 for weighing or pressure
The piston weight 31 of calibration；31 top of piston weight is mounted at the top nozzle center of tubular hanging basket counterweight 33；It is described
The barrel bottom outside of hanging basket counterweight 33 connects radial cyclic annular weight tray 23, carries stacking on the weight tray 23 and sets
The cyclic annular plate-like counterweight 22 set.31 top of piston weight also passes through connection structure and connects out one positioned at the hanging basket counterweight
The pallet counterweight 34 of 33 tops；One group of tubular counterweight 20 being nested with is provided on the pallet counterweight 34.The plate-like counterweight 22
It is provided with plate-like counterweight loading and unloading unit.The tubular counterweight 20 is provided with tubular counterweight loading and unloading unit.
Tubular counterweight loading mechanism (tubular counterweight loading and unloading unit) can refer to Chinese patent 201410229031.4
A kind of independent assortment is raised the price the driving mechanism that driving counterweight in device moves up and down automatically.The patent is also for pressure detecting
Field is raised the price automatically, the tubular counterweight being nested with including one group, and the upper end setting of each layer counterweight drives on the counterweight
The driving mechanism of lower movement；The weight tray of subsidiary weighing or pressure detection mechanism below the counterweight.The height of counterweight is by interior
Successively successively decrease outward；The exposed cylinder in each counterweight upper end opens up support slot, be correspondingly arranged support rod, inner ring, middle ring and
Outer ring.
Under optimum way, the set-up mode of tubular counterweight of the present invention and its loading mechanism are as follows:
Tubular counterweight includes one group of tubular counterweight 20 being nested with, the upper end setting driving institute of each layer tubular counterweight 20
State the driving mechanism that tubular counterweight 20 moves up and down；For for weighing or the pallet weight of pressure detecting below the tubular counterweight 20
Code 34；Tubular counterweight 20 from inside to outside successively successively decrease by height；Support protrusion 91 is arranged in each 20 upper end outer cylinder of tubular counterweight.
The driving mechanism of tubular counterweight includes the corresponding circumferentially spaced about setting of each 20 support protrusion of tubular counterweight 91
One group of horizontal extension support code bar 27, described in each group support code bar 27 be at least 3.Each 27 rear portion of support code bar connects one
It supports code bar and drives cylinder 24；Each support code bar driving cylinder 24 is fixed on the support code tower vertically driven by drawing counterweight cylinder 98
On frame 25.The state at corresponding 20 top of tubular counterweight of code pylon 25 is ask to be arranged in pyramidal structure.
Plate-like counterweight loading and unloading unit can select a kind of sequence of Chinese patent CN201410227718.4 to raise the price device
Support unit or similar whole realized with reference to the patent.Chinese patent CN201710373500.3 one kind can also be selected certainly
Dynamic sequence is raised the price the loading and unloading part in mechanism.
Chinese patent CN201410227718.4 discloses a kind of sequence and raises the price device, including elevator is arranged in a bottom
The supporting plate of structure is stacked plate-like counterweight by support unit on the supporting plate；Each layer of counterweight edge forms flange, is inverted outstanding
Sky is overlapped in the support member of the support unit；Setting relationship between adjacent two layers will not be done when meeting load
It relates to.In addition, below bottom counterweight between the supporting plate the subsidiary weight tray of weighing or pressure detection mechanism.Chinese patent
CN201710373500.3 discloses a kind of automatic sequence and raises the price mechanism, including several plate-like counterweights, weighing section and load are unloaded
Carry part.Weighing section includes weighing pan；Loading and unloading part includes support column assembly；Each support column assembly includes lower pole
Section is the support column of light bar segment, the casing for being successively socketed light bar segment, and the elastomer being supported between support column and casing；Branch
The support level of the external axially spaced-apart setting evagination of the top rod segment and casing of dagger, the lower end of support column light bar segment is fixed
In on hoistable platform horizontally disposed, by driving mechanism driving lifting；Each casing be provided with for limit its drop to it is minimum
The external support body of position.
Under optimum way, plate-like counterweight and its loading and unloading unit select set-up mode of the invention are as follows:
Plate-like counterweight includes several stackings, edge plate-like counterweight 22 and weighing section and loading and unloading equipped with flange
Part；The weighing section includes the weight tray 23 for holding up the plate-like counterweight weighing.
The loading and unloading part (plate-like counterweight loading and unloading unit) includes being distributed in 22 external concentric side of plate-like counterweight
To at least three mutually isostructural drawing code bars 16 of setting；Multiple drawing code bars 16 are respectively in a manner of around own axis
The vertical driving unit that moves up and down of synchronized links.As shown in figure 8, each draw code bar 16 to connect by fixed toothed belt 15
It connects around the toothed belt 14 for all drawing 22 outside of code bar 16 and plate-like counterweight.Pass through tooth on the inside of the circular toothed belt 15
Shape band idle pulley 36 is supported in outward outside plate-like counterweight 22.
As shown in Fig. 9-19, draw code bar 16 correspond in the axial direction each layer plate-like counterweight 22 flange setting it is radial to
The convex disk 95 of outer overlap joint.
Such as Fig. 9-12, shown in Figure 16, Figure 18, the convex disk 95 that lateral lead is drawn, the convex disk 95 of each layer of overlap joint and plate-like
The flange faying surface (such as Fig. 6) of counterweight 22 is to draw the direction of code bar 16 from the bottom to top to become larger, so that from the plate-like counterweight
22 start with the whole overlap joints of the convex disk 95 of each layer of overlap joint, described that code bar 16 is drawn to rotate one week each layer of convex disk of overlap joint from top to bottom
95 are detached from overlap joint with plate-like counterweight 22 one by one.Specific such as Fig. 9-12, shown in Figure 16, Figure 18, in conjunction with Figure 14,17,19, respectively indicates
Three convex disks 95 of overlap joint and three plate-like counterweight 22, four convex disks 95 of overlap joint and four plate-like counterweights 22 and five overlap joints are convex
The structure of disk 95 and the cooperation of five plate-like counterweights 22.Fig. 9-12, three convex disks 95 of overlap joint and three plate-like counterweights 22, with drawing code
Bar 16 rotates, and shows different overlapped states.
According to the above statement, each draws one end of code bar 16 to be also provided with the drawing code bar that driving draws code bar around axis rotation
Angle controller 10.Vertical driving unit of the invention includes one and realizes the intermediate plate moved up and down by driving assembly driving
7；Each drawing code bar 16 is arranged in intermediate plate 7 by a bearing 13, and passes through positioning element with intermediate plate 7 vertically relatively solid
It is fixed.
In addition, illustrating " faying surface ".Plate-like counterweight 22 be it is discoid, faying surface is plate-like counterweight 22 and each layer
From contact to the fan-shaped surface being detached from, size can be determined the convex disk 95 of overlap joint with the angle of disk surface sector.It is preferred that square
Under formula, overlaps convex disk 95 and as shown be around the incomplete disk for drawing 16 axis of code bar；To guarantee adding for top layer's plate-like counterweight
It carries, the relatively described disk for drawing 16 1 side directions of code bar of the convex disk 95 of the overlap joint of top layer all lacks, to guarantee
The convex disk of the overlap joint of top layer can completely disengage the disengaging with plate-like counterweight described in top layer.
As shown in figure 15, the one end for drawing code bar 16 is provided with is made of light barrier 11, photoelectric sensor 12
With grating principle measurement drawing 16 turned position of code bar so that it is determined that the raster unit of 22 stress state of plate-like counterweight.
Under preferred embodiment, as shown in Figure 1, the top nozzle contact surface of piston weight 31 and the hanging basket counterweight 33 is with the conical surface
Contraposition；Between the weight tray 23 and plate-like counterweight 22 and two neighboring plate-like counterweight 22 of hanging basket counterweight 33 with internal orifice at
Conical surface contraposition.Each tubular counterweight 20 is also matched with the pallet counterweight 34 with circular cone；Optimum way, it is described
The disk of pallet counterweight 34 is provided with the slot that two sides are circular cone, and two circular cones align two neighboring tubular counterweight 20 respectively
Low side face.
Frame and lift structure of the invention is as shown in figs. 27-31.Piston weight 31, plate-like counterweight 22, tubular counterweight
20 periphery has been symmetrical arranged vertically upper top gas cylinder 99, and multiple vertical guiding optical axises 4 have been arranged.Such as Figure 31,4 He of optical axis
The upper top gas cylinder 99 is placed in lower plate 9.Such as Figure 27-30, the centre connected by linear bearing 5 has been worn in the middle part of the optical axis 4
Plate 7, and connect at top with upper plate 8；The intermediate plate 7 and upper plate 8 are fixed as one by intermediate connection unit, and are integrally attached to
89 top of piston mandril of the upper top gas cylinder 99.The upper plate 8 is used as the tubular counterweight 20 driving counterweight and moves up and down drive
The driving part of motivation structure is connected to support code pylon 25；The intermediate plate 7 is used as the vertical driving unit of the plate-like counterweight 22
Driving part is connected to and draws code bar 16.
The plate-like counterweight loading and unloading unit includes one and realizes the intermediate plate 7 moved up and down by driving assembly driving
On；Each drawing code bar 16 is arranged in the intermediate plate 7 by a bearing 13, and passes through positioning element and the intermediate plate
7 vertical relatively fixed.
The tubular counterweight loading and unloading unit includes a fixed drawing counterweight cylinder 98 and the support code pylon 25
Upper plate 8.Intermediate plate 7 and upper plate 8 are by drawing counterweight cylinder 98 and support code pylon 25 to connect.
Wherein the support code pylon 25 and intermediate plate 7 are connected by attachment screw 88, support code pylon 25 and drawing counterweight cylinder
98 are connected by attachment screw 87, and upper plate 8 and drawing counterweight cylinder 98 are connected by attachment screw 96.When usually working, counterweight is drawn
Cylinder 98 can pull support code pylon 25 that intermediate plate 7 is driven to move up and down again.When needing to jack up intermediate plate 7, attachment screw 93 is twisted
It opens, separates upper plate 8 with guiding optical axis 4, the piston mandril 89 of upper top gas cylinder 99 pushes upper plate 8 and drives drawing code bar angle control again
Device 10 asks 25 part of code pylon and intermediate plate 7 to move upwards along guiding optical axis 4.
When arranging counterweight, piston weight is located at approximate centre position, and pallet counterweight and hanging basket counterweight, pallet weight are arranged thereon
Tubular counterweight is set on code, plate-like counterweight is set on hanging basket counterweight.On the whole for tubular counterweight in upper and plate-like counterweight under
Arrangement.Since tubular counterweight is independent of each other in load, the independent assortment that counterweight weight may be implemented is loaded, and plate-like weight
For code in load, counterweight above needs to be pressed in the sequence combination load that counterweight weight can only be realized on following counterweight.Pass through
The combination of tubular counterweight and plate-like counterweight loads, and realizes the weight independent assortment load under big weight condition.
Tubular counterweight top is equipped with flange, and telescopic support code bar is arranged in portion under the flange, supports code bar close to the one of flange
End can be protruded into below tubular counterweight flange, and the descending operation of upper and lower position is carried out to tubular counterweight, realize the load of tubular counterweight
And unloading.Plate-like counterweight upper outside is equipped with flange, and the drawing code bar of portion's setting position changeable, draws code bar that can protrude under the flange
Below the plate-like counterweight flange of different layers, the sequence load and unloading of control different layers counterweight.
Tubular counterweight lower part is equipped with the conical surface (inner conical surface or male cone (strobilus masculinus)), and corresponding position also is provided with and tubular weight on pallet counterweight
(tubular counterweight is inner conical surface to the conical surface of the corresponding cooperation of code, then male cone (strobilus masculinus) is arranged in corresponding position on pallet counterweight, and tubular counterweight is
Male cone (strobilus masculinus), then inner conical surface is arranged in corresponding position on pallet counterweight), to realize the accurate positionin of tubular counterweight, while guaranteeing counterweight
Positional shift does not occur during rotation.It is equipped with inner conical surface or male cone (strobilus masculinus) on the inside of plate-like counterweight upper and lower part, if a certain weight
It is inner conical surface on the downside of code adjacent upper counterweight, then is male cone (strobilus masculinus) on the upside of this layer of counterweight, vice versa；Under if a certain counterweight is adjacent
It is inner conical surface on the upside of layer counterweight, then is male cone (strobilus masculinus) on the downside of this layer of counterweight, vice versa.Guarantee to add uninstall process mid-game by the conical surface
The accuracy of shape counterweight position and positional shift does not occur during rotation.Stepped cylindrical, pallet is arranged in piston weight top
Stepped cylindrical with matching is arranged if being provided that outside cylinder on piston weight in counterweight lower part
Interior cylinder is outside cylinder on pallet counterweight if being provided that interior cylinder on piston weight, real by the cooperation between cylinder
Both existing accurate positionin.Male cone (strobilus masculinus) is arranged in piston weight outer rim, and inner conical surface with matching is arranged on the inside of hanging scaffold counterweight, leads to
It crosses the conical surface and realizes that the two is accurately positioned.It is opposite that the plate-like counterweight conical surface adjacent thereto is arranged in hanging scaffold counterweight lower disk upper surface
The inner conical surface or male cone (strobilus masculinus) answered, to realize the accurate positionin between plate-like counterweight and hanging basket counterweight.
Pallet counterweight, hanging basket counterweight and piston weight only have one, and tubular counterweight and plate-like counterweight are more than one piece.
Plate-like counterweight is the separate structure of phase stacked layer by layer, following settings on the outside of lower layer's counterweight inner crest face and upper layer counterweight
Inclined-plane guarantees positioning.Instrument and equipment requirement when calibrating weight is reduction of using the benefit of split type counterweight.Apparatus of the present invention
The positioning of middle counterweight can be by different shapes, the conical surface of angle or other modes substitution.
Upper plate 8, optical axis 4, intermediate plate 7, lower plate 9, support code pylon 25, fixing sleeve or linear bearing 3, linear bearing 5 and branch
The frame of the composition apparatus of the present invention of leg 1；Tubular counterweight 20, pallet counterweight 34, plate-like counterweight 22, hanging basket counterweight 33 and piston weight
The weight load system of 31 composition apparatus of the present invention；Draw code bar angle controller 10, linear bearing 13, toothed belt 14, tooth form
Belt wheel 15, toothed belt idle pulley 36, the counterweight for drawing code bar 16, support code bar driving cylinder 24 and support code bar 27 to form apparatus of the present invention add
The control mechanism of unloading；Belt 17, belt pulley 18, motor 19, gas-blowing column 28 form the counterweight rotation driving system of apparatus of the present invention
System；Light barrier 11, photoelectric sensor 12, sensor support frame 30, range sensor 29, velocity sensor 37 form dress of the present invention
The operating position testing agency set；Operation readiness machine when upper top gas cylinder 99 and connecting column 26 form the counterweight maintenance of apparatus of the present invention
Structure.
It is fixedly connected between upper plate 8, optical axis 4, fixing sleeve or linear bearing 3 and lower plate 9, intermediate plate 7 and support code pylon 25
Between be fixedly connected, intermediate plate 7 can be slided up and down by linear bearing 5 along optical axis 4；Upper plate 8, support code pylon are by drawing weight
Code cylinder 98 connects, and draws the movement of counterweight cylinder 98 that support code pylon 25 may be implemented and drives support code bar 27, realizes on tubular counterweight
Lower movement carries out tubular counterweight and adds uninstall action, meanwhile, it can also drive support code pylon 25 that intermediate plate 7 can be driven to drive again and draw code bar
16 move up and down, to realize that plate-like counterweight moves up and down, carry out plate-like counterweight and add uninstall action.
The stretching motion in the horizontal direction of code bar 27 is supportted in the support code bar driving cylinder 24 being mounted on support code pylon 25, driving,
The action control of different tubular counterweights is realized in the relative position for controlling itself and tubular counterweight flange.According to tubular counterweight height, if
Multilayer support code bar 27 is set, on the same layer, multiple support code bars 27 are set, it is general to be no less than 3.
It draws 16 lower part of code bar to be provided with the imperfect disk of multilayer, that is, there is the disk step of notch, when drawing code bar 16 is around it
When own axes rotate, the imperfect disc gap of different layers is located at different relative positions from plate-like counterweight flange, draws code bar
It is driven by drawing code bar angle controller 10 and is rotated, the protrusion of imperfect disk thereon is made to be partially in different location and stretch
The flange lower for entering the plate-like counterweight 22 of different layers realizes the action control of different plate-like counterweights.Multiple plate-like counterweights phase layer by layer
Folded to be placed on hanging basket counterweight 33, multiple tubular counterweight ring rings, which are nested to be placed on pallet counterweight 34, realizes load.On middle plate 7
By linear bearing 13, multiple drawing code bars 16 are provided with, it is general no less than 3, one of to draw code bar 16 and draw code bar angle
Control device 10, which is connected, to be respectively provided with toothed belt on each drawing code bar 16 by its drive, by toothed belt by multiple drawing code bars
Connection linkage guarantees that the different imperfect disks drawn on code bar are in along the centrosymmetric position of counterweight.By the way that toothed belt is arranged
Idle pulley 36 is tensioned toothed belt.
As shown in Figure 20-26, blowing nozzle is set on pallet counterweight periphery, setting is kept out the wind at pallet counterweight top edge position
Pallet counterweight is blown by air pressure and increases revolving speed when revolving speed deficiency in hole.When compression system loads, pressure jacks up piston driving
Pallet counterweight jacks up counterweight, and under drag ring effect, scale pan drives counterweight to start to rotate.It is arranged below pallet counterweight and passes
Sensor, real-time measurement pallet counterweight revolving speed, after revolving speed is lower than the revolving speed of drag ring, control system controls gas nozzle to pallet counterweight
It blows, increases pallet counterweight rotation speed, guarantee counterweight revolving speed consistently achieves or is more than minimum as defined in respective standard in this way
Value, when counterweight unloads or loads, when pallet counterweight and drag ring being needed to contact, the revolving speed of pallet counterweight and drag ring is close,
The abrasion that speed of related movement difference generates friction and may cause is avoided, to improve instrument when used for a long time, measuring accuracy
Stability.
Specifically, the hydraulic medium in oil cylinder 35 pushes piston weight 31, and the counterweight loaded is driven to jack up and hang
It is floating.When piston is not jacked up, 31 lower end surface of piston weight and 32 upper end face contact of drag ring, drag ring 32 drive piston weight
31 and drive other counterweights to rotate, when piston weight 31 is jacked up, the tubular counterweight and plate-like counterweight of load, hanging basket counterweight,
Piston weight and pallet counterweight are continued to rotate by inertia, in some cases, when relying on inertia are not enough to that counterweight is maintained to continue
When rotation, setting gas-blowing column 28 drives counterweight persistently to rotate to as independent power source.Drag ring 32 is relied on to be connected with bottom plate
Motor 19 drive rotation.
Code-disc float and rotation process: when the hydraulic medium in oil cylinder 35 has enough pressure, piston weight 31 is pushed up
It is dynamic, and the counterweight loaded is driven to jack up and suspend.When piston weight is not yet jacked up, 31 outside lower end surface of piston weight with
32 upper end face contact of drag ring, motor 19 drive belt 17 that drag ring is driven to pass through frictional force band piston weight again by belt pulley
Code 31 and the rotation of other counterweights, when piston weight 31 is jacked up, tubular and plate-like counterweight, hanging basket counterweight, the piston weight of load
Code and pallet counterweight are continued to rotate by inertia.Gas-blowing column 28 is arranged as auxiliary power source to blow to pallet counterweight, without outer
Mechanical friction effect in boundary's, when counterweight rotator inertia is not enough to that counterweight is maintained persistently to rotate, can make in the case of poise system
Counterweight is obtained to continue to rotate.
It include gas pressure regulator 83, pressurizing device 84, control device 85 and clamp nut 81 in Figure 20.
Pallet counterweight 34 is supported on piston weight 31, places counterweight on pallet counterweight 34, when pallet counterweight 34 not by
When jack-up, piston weight 31 is contacted with lower friction ring 32, when piston, which is under pressure, to be jacked up, pallet counterweight 34 and thereon weight
Code can be jacked up together, and pallet counterweight 34 is disengaged with drag ring 32.Several gas nozzles are arranged symmetrically along pallet counterweight circumference,
The gas outlet of gas nozzle and the angle of pallet counterweight are (0≤α≤90) α.When pallet counterweight rotates counterclockwise, pallet counterweight
Angle it is as shown in figure 21, when pallet counterweight is rotated clockwise, the angle of pallet counterweight is as shown in figure 22.Gas nozzle and gas
Solenoid valve is set between source, and solenoid valve is controlled by control system.Velocity sensor 37, preferably feelings is arranged in 34 lower part of pallet counterweight
Condition is photoelectric sensor, and in 34 lower part of pallet counterweight against the one side of sensor, the figures such as two kinds of alternate stripeds of color are arranged
Coating (such as Figure 23 and 26), the speed signal for velocity sensor perceive, and figure quantity is more than or equal to 1.
In use, when pallet counterweight 34 is not jacked up, the piston weight 31 with 34 one of pallet counterweight is under
Portion's drag ring 32 contacts, and drag ring 32 is made its rotation by external force, and pallet counterweight 34 is driven by drag ring 32 to be rotated.When piston by
When pressure is jacked up, pallet counterweight 34 and counterweight thereon are jacked up together, and piston weight 31 is disengaged with drag ring, at this time
Its rotary motion is maintained by inertia.When inertia deficiency, the revolving speed of pallet counterweight 34 and counterweight is reduced, by velocity sensor sense
Know, and transmit signal to control system, control system controls solenoid valve, and gas nozzle 28 is blown to pallet counterweight 34, makes pallet counterweight
Revolving speed accelerates, and after reaching predetermined speed, stops blowing.In whole process, all gas nozzles are identical as pallet counterweight radial direction angle, by
Power is uniform, in addition to accelerating speed, does not break the equilibrium state of scale pan and counterweight.
Draw code bar angle controller 10 that can be controlled by stepper motor, servo motor or rotary cylinder etc..
Light barrier 11 is set on a drawing code bar wherein, light barrier rotation is driven when drawing the rotation of code bar, in light barrier week
The multiple photoelectric sensors 12 of setting are enclosed, when drawing code bar to turn to different location, photoelectric sensor 12 can perceive its position,
Code bar angle is drawn to know, would know which plate-like counterweight is being added unloading operation, for realizing automatic gauge.
Two sensor support frames 30 are set, one of them is used for fixed range sensor 29, another is for fixed speed
Spend sensor 37.The height and position that support code-disc is measured by range sensor 29 measures counterweight revolving speed by velocity sensor 37.
Sensor support frame 30 is installed on the slideway being fixedly connected with bottom plate that (slideway can be separately provided, and can also borrow cylinder alien invasion
Slot).Range sensor 29 can realize with the sensor of hall principle, velocity sensor can with the sensors of photovoltaic principals and
In coating (or adhesive layer) Lai Shixian of support code-disc lower surface setting different colours.
The course of work of apparatus of the present invention specifically includes that the loading procedure of counterweight, uninstall process, the support code-disc of whole counterweights
Float and rotation process, counterweight are placed and taken out the process of device.
The loading procedure of counterweight: piston weight 31 and pallet counterweight 34 are in stress state always.Tubular counterweight 20 adds
It carries, whole tubular counterweight 20 is placed on pallet counterweight 34 when initial, and support code bar driving cylinder 24 acts, and is allowed to driving and is connected
Support code bar 27 extend out to the corresponding counterweight flange lower of the tubular counterweight being not loaded with, draw counterweight cylinder 98 to act, will unload
Counterweight lift realize tubular counterweight unloading, the counterweight that the counterweight not unloaded loads.Plate-like counterweight 22 and hanging basket counterweight 33
Load, whole plate-like counterweight 22 is placed on hanging basket counterweight 33 when initial, control draw code bar 16 rotational angle, will draw code bar
Lower section imperfect disk protrusion part is gone to below the flange for being not loaded with plate-like counterweight or hanging basket counterweight 33, draws counterweight cylinder 23 dynamic
Make, the counterweight that will be unloaded lifts the unloading for realizing counterweight, the counterweight that the counterweight not unloaded loads.
The uninstall process of whole counterweights: extending out to corresponding counterweight flange lower for all support code bars 27, meanwhile, code is drawn in control
Bar rotational angle will draw imperfect disk protrusion part below code bar to go to below all counterweight flanges, draw counterweight cylinder 23 dynamic
Make, drives all counterweights to be lifted up, unload all counterweights.
Counterweight is placed and taken out the process of device: when counterweight needs to remove the operation such as sense weight from the present apparatus, control support
Code bar driving cylinder 24 and the rotational angle for drawing code bar 16, make all counterweights be in stress state, i.e. tubular counterweight 20 and pallet
Counterweight 34 contacts, and plate-like counterweight 22 is contacted with hanging basket counterweight 33.Connection between upper plate 8 and optical axis 4 is disengaged, upper top gas cylinder
99 movements push upper plate 8 and drive support code pylon 25 and intermediate plate 7, then drive and draw code bar 16, integrally move up, make all weights
Code is exposed, convenient for being placed and taken out counterweight.
It is as shown in the figure the principle of the present invention.Counterweight cylinder 98 is drawn in apparatus of the present invention, support code bar drives cylinder 24, on
Top gas cylinder 99 uses pneumatic actuation for preferably mode, but can use leadscrew-nut mechanism, hydraulic oil cylinder mechanism, electromagnetic drive mechanism
Or other mechanisms that linear motion may be implemented realize.Power device can be air pump, motor, hydraulic motor etc. accordingly.Away from
From the bottom part down that sensor 29 and velocity sensor 37 are set to pallet counterweight 34, the two can be arranged to pallet counterweight 34
Top or other position substitutions.It draws counterweight cylinder 98 to be set to the top of support code pylon 25, counterweight cylinder 98 can will be drawn to set
It is placed on top plate 8, or can realize in a manner of relative motion and position substitution between support code pylon 25 and upper plate 8 by other.This
Tubular counterweight is 6 in figure, and corresponding support code tower has 6 layers, and the support code bar of every layer of setting has 3.It in practice, can be according to need
It wants, N number of tubular counterweight is set, the support code tower number of plies can be with >=N layers, every layer of corresponding support code bar quantity >=2.Under preferred embodiment,
Plate-like counterweight quantity is 3, and it is 3 that imperfect disk numbers of steps is arranged on each drawing code bar, and drawing code bar quantity is 3.It is real
It in border, can according to need, N number of plate-like counterweight be set, each imperfect disk numbers of steps of drawing code bar >=N layers draws code bar
Quantity >=2.The rotational angle of code bar is drawn to control by position sensor, corresponding 4 position sensors of 3 counterweights.N is such as set
A counterweight, then need N+1 position sensor, and the rotational angle of code bar is drawn in perception, so that realize plate-like counterweight plus unloading is replaced
Generation.It is photoelectric sensor under this position sensor preferable states, the replacement of other principle sensors can also be used.Toothed belt 14 and tooth
Shape belt wheel 15 can be set in the lower section of linear bearing 13, also can be set in the top of linear bearing 13.
Supporting leg 1 and lower plate 9 are fixed, and linear bearing 3 is arranged in lower plate 9, are that guiding optical axis 4 positions with linear bearing 3, can also
Select guide sleeve or fixing sleeve.Realize that lower plate 9 and upper plate 8 connect by guiding optical axis 4, intermediate plate 7 is connect with linear bearing 5, is led to
Crossing linear bearing 5 can move up and down on guiding optical axis 4.Upper top gas cylinder 99 is mounted between lower plate 9 and upper plate 8, cylinder
Piston (piston mandril 89) and cylinder body are connected with lower plate 9 and upper plate 8 respectively.
Need to lift upper plate 8 and when counterweight adds discharge mechanism, the screw 93 unscrewing fixed upper plate 8 and being oriented between optical axis 4,
Upper top gas cylinder 99 moves, and adds discharge mechanism 80 and intermediate plate 7 to jack up upper plate 8, counterweight, the connector sleeve outside linear bearing 5
Annular groove is arranged on guiding optical axis 4 in upper setting spring catch 6, upper top gas cylinder 99 jacks up upper plate 8, counterweight adds discharge mechanism 80 and
When intermediate plate 7, in the annular groove of the insertion guiding optical axis 4 of spring catch 6, or it is not provided with annular groove, spring catch 6 is directly arranged at straight line
The upper surface of sliding rail 4 simultaneously abuts against, and when losing gas suddenly to avoid upper top gas cylinder 99, upper plate 8 lands suddenly, guarantee counterweight take out and
The personal safety of operator when being put into.It is as shown in the figure the principle of the present invention.Cylinder is jacked up in the present invention can use feed screw nut
Mechanism, hydraulic oil cylinder mechanism, electromagnetic drive mechanism or other mechanisms that linear motion may be implemented realize.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of plate-like counterweight loading mechanism is equipped with the plate-like counterweight (22) and weighing sections of flange including several stackings, edge
Divide and loading and unloading part；The weighing section includes the weight tray (23) for holding up the plate-like counterweight weighing；Its feature exists
In,
The loading and unloading part includes being distributed at least three vertically arranged identical structures of plate-like counterweight (22) periphery
Drawing code bar (16)；Multiple drawing code bars (16) are connected in a manner of rotating synchronously around own axes together respectively to be moved down
Dynamic vertical driving unit；
The overlap joint of the flange setting flange radial direction for drawing code bar (16) to correspond to each layer plate-like counterweight (22) in the axial direction
The flange faying surface of convex disk (95), each layer of the convex disk of the overlap joint (95) and the plate-like counterweight (22) is with the drawing code bar
(16) direction from the bottom to top becomes larger, so that all from the plate-like counterweight (22) and each layer convex disk (95) of overlap joint
Overlap joint starts to the drawing code bar (16) to rotate one week, the convex disk (95) of overlap joint of each layer from top to bottom and the plate-like weight
Code (22) is detached from overlap joint one by one.
2. plate-like counterweight loading mechanism according to claim 1, which is characterized in that each drawing code bar (16) passes through fixation
Toothed belt (15) be attached around all toothed belts (14) drawn on the outside of code bar (16) and the plate-like counterweight (22)；
Wherein, the one end for drawing code bar (16), which is provided with, drives the drawing code bar drive for drawing code bar (16) around axis rotation
Moving cell (10).
3. plate-like counterweight loading mechanism according to claim 2, which is characterized in that the one of one of them drawing code bar (16)
End is provided with by light barrier (11), photoelectric sensor (12) with the grating principle measurement drawing code bar (16) turned position to really
The raster unit of fixed plate-like counterweight (22) stress state.
4. the plate-like counterweight loading mechanism according to Claims 2 or 3, which is characterized in that the circular toothed belt (15)
Inside is supported in plate-like counterweight (22) outside by toothed belt idle pulley (36) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387487.6A CN110196137B (en) | 2019-05-09 | 2019-05-09 | Disc-shaped weight loading mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387487.6A CN110196137B (en) | 2019-05-09 | 2019-05-09 | Disc-shaped weight loading mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110196137A true CN110196137A (en) | 2019-09-03 |
| CN110196137B CN110196137B (en) | 2022-07-08 |
Family
ID=67752647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910387487.6A Active CN110196137B (en) | 2019-05-09 | 2019-05-09 | Disc-shaped weight loading mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110196137B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4129904C1 (en) * | 1991-09-09 | 1992-09-03 | A.M. Erichsen Gmbh, 5600 Wuppertal, De | Loading machine producing calibrating forces for force pick=up - accepts weights on joined stacks coupled to tensile stress rod of liftable load transferring frame accepting transducer |
| CN201476939U (en) * | 2009-02-25 | 2010-05-19 | 马俊杰 | Automatic weight loading-unloading device of piston pressure gage |
| CN102426051A (en) * | 2011-08-09 | 2012-04-25 | 吉林大学 | Testing machine for testing crane scale and method for disassembling and assembling weight thereof |
| CN202382905U (en) * | 2011-11-23 | 2012-08-15 | 太原太航科技有限公司 | Synchronous rotating piston and counterweight device of piston pressure gauge |
| CN103575463A (en) * | 2013-11-08 | 2014-02-12 | 吉林大学 | Independent weight loading-unloading dead-load type torque measurement device |
| CN104019938A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Free-combination automatic-weight adding device |
| CN104019937A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Sequential weight adding device |
| CN203824701U (en) * | 2014-03-17 | 2014-09-10 | 上海英环测试设备有限公司 | Weight automatic adding and subtracting mechanism used for piston manometer |
| CN204085677U (en) * | 2014-08-08 | 2015-01-07 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of counterweight automatic loading device |
| CN206339296U (en) * | 2016-12-22 | 2017-07-18 | 湖北省计量测试技术研究院 | A kind of dead weight and superimposion formula power standard set-up |
| CN107238429A (en) * | 2017-05-24 | 2017-10-10 | 大连工业大学 | A kind of automatic sequence is raised the price mechanism |
| KR20180000774A (en) * | 2016-06-23 | 2018-01-04 | 한국표준과학연구원 | Weights Loading and Unloading Apparatus of A Torque Calibration Machine And Loading and Unloading Method Thereof |
| CN108020375A (en) * | 2018-01-19 | 2018-05-11 | 赵珊珊 | A kind of full automatic piston pressure gauge |
| CN208091618U (en) * | 2018-04-12 | 2018-11-13 | 上海敏榆实业有限公司 | A kind of piston manometer for adding and subtracting mechanism automatically with counterweight |
| CN108801533A (en) * | 2018-04-12 | 2018-11-13 | 上海敏榆实业有限公司 | A kind of fully automatic piston type pressure gauge |
-
2019
- 2019-05-09 CN CN201910387487.6A patent/CN110196137B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4129904C1 (en) * | 1991-09-09 | 1992-09-03 | A.M. Erichsen Gmbh, 5600 Wuppertal, De | Loading machine producing calibrating forces for force pick=up - accepts weights on joined stacks coupled to tensile stress rod of liftable load transferring frame accepting transducer |
| CN201476939U (en) * | 2009-02-25 | 2010-05-19 | 马俊杰 | Automatic weight loading-unloading device of piston pressure gage |
| CN102426051A (en) * | 2011-08-09 | 2012-04-25 | 吉林大学 | Testing machine for testing crane scale and method for disassembling and assembling weight thereof |
| CN202382905U (en) * | 2011-11-23 | 2012-08-15 | 太原太航科技有限公司 | Synchronous rotating piston and counterweight device of piston pressure gauge |
| CN103575463A (en) * | 2013-11-08 | 2014-02-12 | 吉林大学 | Independent weight loading-unloading dead-load type torque measurement device |
| CN203824701U (en) * | 2014-03-17 | 2014-09-10 | 上海英环测试设备有限公司 | Weight automatic adding and subtracting mechanism used for piston manometer |
| CN104019937A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Sequential weight adding device |
| CN104019938A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Free-combination automatic-weight adding device |
| CN204085677U (en) * | 2014-08-08 | 2015-01-07 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of counterweight automatic loading device |
| KR20180000774A (en) * | 2016-06-23 | 2018-01-04 | 한국표준과학연구원 | Weights Loading and Unloading Apparatus of A Torque Calibration Machine And Loading and Unloading Method Thereof |
| CN206339296U (en) * | 2016-12-22 | 2017-07-18 | 湖北省计量测试技术研究院 | A kind of dead weight and superimposion formula power standard set-up |
| CN107238429A (en) * | 2017-05-24 | 2017-10-10 | 大连工业大学 | A kind of automatic sequence is raised the price mechanism |
| CN108020375A (en) * | 2018-01-19 | 2018-05-11 | 赵珊珊 | A kind of full automatic piston pressure gauge |
| CN208091618U (en) * | 2018-04-12 | 2018-11-13 | 上海敏榆实业有限公司 | A kind of piston manometer for adding and subtracting mechanism automatically with counterweight |
| CN108801533A (en) * | 2018-04-12 | 2018-11-13 | 上海敏榆实业有限公司 | A kind of fully automatic piston type pressure gauge |
Non-Patent Citations (1)
| Title |
|---|
| 王素红: "《大学物理实验教程》", 31 December 2006, 长沙：国防科技大学出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110196137B (en) | 2022-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110196135A (en) | A kind of combination counterweight loading mechanism | |
| JP4878175B2 (en) | Balance inspection device | |
| CN104019938B (en) | Free-combination automatic-weight adding device | |
| CN107192501B (en) | A kind of marine propeller static balance testing device and method | |
| CN104019937B (en) | The order device of raising the price | |
| CN105043663B (en) | Air bearing formula standard torquer | |
| CN106092026A (en) | A kind of axial clearance detector of wheel hub | |
| CN202748186U (en) | Piston type pressure gauge and counterweight automatic loading and unloading device thereof | |
| CN110196137A (en) | A kind of plate-like counterweight loading mechanism | |
| CN110196136A (en) | A kind of tubular counterweight loading mechanism | |
| CN110132488A (en) | A kind of loading mechanism improving plate-like counterweight | |
| CN110132487A (en) | A kind of loading mechanism improving tubular counterweight | |
| CN109909732B (en) | Bolt position appearance detector and bolt position appearance detect tightening device | |
| CN110132486A (en) | A kind of monoblock type counterweight loading mechanism improving plate-like counterweight | |
| CN110160705A (en) | A kind of monoblock type counterweight loading mechanism improving tubular counterweight | |
| CN110160704A (en) | A kind of combination counterweight loading mechanism of structure optimization | |
| CN110186615A (en) | A kind of revolvingly driven type piston manometer | |
| CN110196134A (en) | A kind of piston manometer persistently rotated based on no friction mode driving counterweight | |
| CN110160703A (en) | It is a kind of based on the counterweight loading mechanism for making pressure system | |
| CN110186616A (en) | A kind of piston manometer of no friction mode driving counterweight | |
| CN112880576A (en) | Method and device for measuring diameter and coaxiality of cylindrical or conical cylindrical device | |
| CN201283383Y (en) | Rotary flanging machine with up-down fixing rack | |
| CN110440981A (en) | A kind of three motors of counterweight loading mechanism make pressure system | |
| CN110285919A (en) | A kind of counterweight loading mechanism independently makes pressure system | |
| CN100533124C (en) | Conical curved face windshields light transmittance ratio detection bench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |