CN109395834A - A kind of grate plate regulating device and sand making machine - Google Patents
A kind of grate plate regulating device and sand making machine Download PDFInfo
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- CN109395834A CN109395834A CN201811326710.8A CN201811326710A CN109395834A CN 109395834 A CN109395834 A CN 109395834A CN 201811326710 A CN201811326710 A CN 201811326710A CN 109395834 A CN109395834 A CN 109395834A
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- Prior art keywords
- grate plate
- sliding block
- jackscrew
- regulating device
- making machine
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
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- 238000010586 diagram Methods 0.000 description 16
- 125000006850 spacer group Chemical group 0.000 description 12
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
- B02C13/284—Built-in screens
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
This application discloses a kind of grate plate regulating devices.The grate plate regulating device includes grate plate support shaft (1553), sliding block (1554), lower jackscrew (1556), lower jackscrew fixed block (1560) and adjusting gasket (1555)；Grate plate support shaft (1553) both ends are connect with the sliding block (1554) respectively；The lower jackscrew (1556) is threadedly coupled with the lower jackscrew fixed block (1560), the upper end of the lower jackscrew (1556) is pressed against the lower end of the sliding block (1554), and the rotation of the lower jackscrew (1556) drives the sliding block (1554) to move up and down；The adjusting gasket (1555) is placed between the sliding block (1554) and the lower jackscrew fixed block (1560), is used to support the gravity of the sliding block (1554).Grate plate regulating device involved in the application can be used for adjusting moving up and down for grate plate under sand making machine.
Description
Technical field
This application involves thin materials to be crushed field, particularly, is related to a kind of grate plate regulating device and sand making machine.
Background technique
In building material industry, sand making machine is the important equipment of productive manpower sandstone, and sand making machine not only can be with productive manpower sand, but also can
To carry out shaping to aggregate, sandstone particle shape produced is excellent.Requirement with market to high-quality Machine-made Sand is higher and higher,
Traditional equipment Machine-made Sand produced is difficult to meet the market demand.Therefore, it is necessary to provide the better sand making machine of sand effect processed.It is right
In the lower grate plate of sand making machine, it is necessary to it is adjusted, so that sand making machine obtains preferably sand effect processed.
Summary of the invention
One of the embodiment of the present application provides a kind of grate plate regulating device, including grate plate support shaft, sliding block, lower jackscrew, lower top
Silk fixed block and adjusting gasket.Grate plate support shaft both ends are connected with the slide block respectively；The lower jackscrew and the lower top
Silk fixed block is threadedly coupled, and the upper end of the lower jackscrew is pressed against the lower end of the sliding block, described in the rotation of the lower jackscrew drives
Sliding block moves up and down；The adjusting gasket is placed between the sliding block and the lower jackscrew fixed block, is used to support the cunning
The gravity of block.
In some embodiments, the grate plate regulating device further includes upper jackscrew and upper jackscrew fixed block；The upper jackscrew
It is threadedly coupled with the upper jackscrew fixed block, the lower end of the upper jackscrew and the upper-end contact of the sliding block.
In some embodiments, the grate plate regulating device further includes sealing plate, and the sealing plate is adjacent with the sliding block,
It is set in the grate plate support shaft.
In some embodiments, it is equipped with annular groove in the sealing plate, is equipped with O-ring in the annular groove.
In some embodiments, the grate plate regulating device further includes the baffle for being limited to sliding block, the gear
Plate and the shell of sand making machine are connected.
In some embodiments, the grate plate regulating device further includes the cover board for being limited to adjusting gasket, institute
The shell for stating cover board and sand making machine is connected.
One of the embodiment of the present application provides a kind of grate plate adjusting method, comprising: rotates in the forward direction lower jackscrew, the lower jackscrew band
Movable slider moves up, and then grate plate support shaft is driven to move up；It is put into/takes between the sliding block and lower jackscrew fixed block
Adjusting gasket out；Lower jackscrew is reversely rotated, the sliding block moves down until the adjusting gasket bears the gravity of the sliding block.
One of the embodiment of the present application provides a kind of sand making machine, and the sand making machine includes the grate plate regulating device.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the sand making machine according to shown in the application some embodiments；
Fig. 2 is the side structure schematic view of the sand making machine according to shown in the application some embodiments；
Fig. 3 be in Fig. 2 according to shown in the application some embodiments sand making machine in the cross-sectional view in the face A-A；
Fig. 4 is the structural schematic diagram of the sand making machine rotor according to shown in the application some embodiments；
Fig. 5 be in Fig. 4 according to shown in the application some embodiments sand making machine rotor in the cross-sectional view in the face B-B；
Fig. 6 is the structural schematic diagram of the impact rack according to shown in the application some embodiments and soft readjustment device；
Fig. 7 is the structural schematic diagram of the soft readjustment device according to shown in the application some embodiments；
Fig. 8 be in Fig. 7 according to shown in the application some embodiments soft readjustment device in the cross-sectional view in the face C-C；
Fig. 9 be in Fig. 8 according to shown in the application some embodiments soft readjustment device in the cross-sectional view in the face D-D；
Figure 10 is the structural schematic diagram of the grate plate regulating device according to shown in the application some embodiments；
Figure 11 be in Figure 10 according to shown in the application some embodiments grate plate regulating device in the cross-sectional view in the face E-E；
Figure 12 is the detailed structure schematic diagram of the grate plate regulating device according to shown in the application some embodiments；
Figure 13 is the structural schematic diagram of the adjusting gasket according to shown in the application some embodiments；
Figure 14 is the schematic perspective view of the lower grate plate according to shown in some embodiments of the application；
Figure 15 is the side structure schematic view of the lower grate plate according to shown in some embodiments of the application；
Figure 16 is the schematic view of the front view of the lower grate plate according to shown in some embodiments of the application；
Figure 17 is to descend grate plate in the cross-sectional view in the face F-F in Figure 16 according to shown in the application some embodiments；
Figure 18 is the overlooking structure diagram of the lower grate plate according to shown in some embodiments of the application；
Figure 19 is the structure schematic diagram of the grate plate according to shown in the application some embodiments；
Figure 20 is the positive structure schematic of the grate plate according to shown in the application some embodiments.
In figure, 100 be sand making machine, and 110 be shell, and 120 be driving equipment, and 130 be rotor, and 140 be impact rack, and 150 are
Lower grate plate, 160 (including 160-1,160-2,160-3) are soft readjustment device, and 170 be feed inlet, and 180 be discharge gate, and 190 are
Iron mouth is arranged, 1305 be gap, and 131 be the first sheave, and 132 be bearing block, and 133 be gland, and 134 be main shaft, and 135 be tup, 136
To hammer ring into shape, 137 be spacer sleeve, and 138 be hammer disk, and 139 be flywheel, and 1385 be spacer sleeve fixing axle, and 141 turn for impact rack is fixed
Axis, 142 be counterattack panel, and 143 be counterpunch board, and 161 adjust component for distance, and 162 adjust component for elastic force, and 163 be spring base,
1611 be movable screw rod, and 1612 be sealing ball cup, and 1613 be support ball cup, and 1614 be link block, and 1621 be fixed screw rod,
1622 be spring, and 1623 be connecting plate, and 1624 be elastic force adjusting nut, and 1625 be screw rod sheath, and 155 be grate plate regulating device,
1551 be baffle, and 1552 be cover board, and 1553 be grate plate support shaft, and 1554 be sliding block, and 1555 be adjusting gasket, and 1556 be lower top
Silk, 1557 be upper jackscrew, and 1558 be sealing plate, and 1559 be O-ring, and 1560 be lower jackscrew fixed block, and 1561 fix for upper jackscrew
Block, 151 be grate plate bracket, and 152 be grate plate, and 153 be fixing bolt, and 1511 be the grate plate bracket first component, and 1512 be grate plate branch
Frame second component, 1521 be positioning bolt hole, and 1522 be seam of combing, and 1523 be locating groove.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
On the contrary, the application covers any substitution done in the spirit and scope of the application being defined by the claims, repairs
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the application, below to the thin of the application
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
The application can also be understood completely in description.
The embodiment of the present application relates generally to a kind of thin material crushing device.Specifically, being related to a kind of sand making machine and application
The grate plate under the sand making machine rotor of sand making machine, soft readjustment device, grate plate regulating device and sand making machine.The sand making machine can be applicable in
In several scenes application.For example, the sand making machine can be used for mating large-scale sandstone production line.In another example the sand making machine can be used
Broken in hard, crisp material in sandstone, rock, abrasive material, refractory material, clinker, quartz, iron ore, aggregate etc.,
It is fine crushing.The application for sand making machine application scenarios with no restriction.
Fig. 1 is the schematic view of the front view of the sand making machine according to shown in the application some embodiments.Fig. 2 is according to the application
The side structure schematic view of sand making machine shown in some embodiments.Fig. 3 is made in Fig. 2 according to shown in the application some embodiments
Cross-sectional view of the sand machine in the face A-A.As shown in Figure 1-3, the sand making machine 100 may include driving equipment 120, shell 110, rotor
130, impact rack 140 and lower grate plate 150.In some embodiments, sand making machine 100 can also be including soft readjustment device 160 (such as
160-1,160-2,160-3 shown in Fig. 3), feed inlet 170, discharge gate 180 and row iron mouth 190.
Shell 110 is used to support other components (such as rotor 130) of sand making machine 100.The ontology of shell 110 can be by steel
Plate is welded.In some embodiments, protective lining plate can be installed in the side of shell 110, to protect 110 ontology of shell
Structure is not worn.Rotor 130 and shell 110 are rotatablely connected, and rotor 130 can be under the support of shell 110 around the axis of itself
Line rotation.It is rotatablely connected specifically, rotor 130 can be realized by bearing block and shell 110.In some embodiments, rotor
It can be equipped on 130 for being crushed, the structure of shaping material (such as tup and/or hammer ring).Specifically, can on rotor 130
To include the tup and hammer ring of combination arrangement.In some alternate embodiments, rotor 130 or those skilled in the art
Known any Rational structure.More details about rotor 130 may refer to Fig. 4-5 and associated description.
Driving equipment 120 and rotor 130 are sequentially connected, for driving rotor 130 to rotate.In some embodiments, it drives
Equipment 120 may include motor and motor cabinet.Motor can drive rotor 130 to rotate by way of V belt translation.Specifically, electric
Machine can drive rotor 130 to rotate by V-belt, plate band, circular strip, tooth-like belt, synchronous belt etc..In some alternative realities
It applies in example, driving equipment 120 or one or more combination such as internal combustion engine (such as gasoline engine, oil production machine), steam engine.
In some embodiments, the transmission connection between driving equipment 120 and rotor 130 also may include gear drive, chain conveyer, snail
One or more combinations such as bar transmission.
Impact rack 140 is arc-shaped, is arranged above rotor 130.Specifically, impact rack 140 can be involute shape.?
In some embodiments, impact rack 140 may include the counterattack panel 142 and counterpunch board 143 of involute shape setting.Counterpunch board
143 can be arranged in rows along the involute direction of counterattack panel 142, and form dentalation.It is anti-compared to non-dentalation
Plate is hit, crushing effect can be enhanced in such setting.In some embodiments, soft readjustment device 160 (such as 160-1) can be passed through
Adjust the position of impact rack 140.More details about impact rack 140 and soft readjustment device may refer to Fig. 6-9 and its
Associated description.
Lower grate plate 150 is arc-shaped, is arranged below rotor 130.Lower grate plate 150 is equipped with seam of combing.Lower grate plate 150 can be used
In control discharge dynamics, guarantee rotor 130 to the broken of material, shaping operation.More details about lower grate plate 150 can join
See Figure 14-20 and associated description.In some embodiments, the radian of the radian of lower 150 arcwall face of grate plate and rotor outer ring can be with
It is consistent or almost the same.In some embodiments, in order to make to be crushed, shaping effect it is more preferable, lower grate plate 150 and 130 outer ring of rotor
Between formed everywhere in gap can be identical or essentially identical so that everywhere to material between lower grate plate 150 and rotor 130
Function and effect (such as active force) are almost the same.Specifically, gap everywhere in being formed between 130 outer ring of lower grate plate 150 and rotor
Difference between 1305 can be less than first threshold (such as 1cm, 5cm, 10cm).In some embodiments, flexibility can be passed through
Gap between 150 both ends of grate plate and rotor outer ring under regulating device 160 (such as 160-2,160-3) is adjusted.In some embodiments,
Moving up and down for lower grate plate 150 can be adjusted by grate plate regulating device 155.It is adjusted by soft readjustment device 160 and grate plate
The collective effect of device 155 can make the difference everywhere in being formed between 130 outer ring of lower grate plate 150 and rotor between gap 1305
Value is less than first threshold.Compared to the existing lower grate plate that can not be adjusted, adjustable lower comb disclosed by the embodiment of the present application
Plate can better ensure that the consistency in the gap formed between 130 outer ring of lower grate plate 150 and rotor, so as to so as to make brokenly
It is broken, shaping effect is more preferable.In addition, by adjusting the gap formed between lower 130 outer ring of grate plate 150 and rotor, it also can be more preferable
Ground controls discharge dynamics.More details about soft readjustment device 160 and grate plate regulating device 155 may refer to Fig. 6-13
And its associated description.
In some embodiments, sand making machine 100 can also include feed inlet 170, discharge gate 180 and/or row's iron mouth 190.
Wherein, feed inlet 170 can be set above shell 110, and material (such as ore, aggregate) can be poured by feed inlet 170
In the shell 110 of sand making machine.Specifically, in the embodiment shown in fig. 3, feed inlet 170 can be set in rotor 130 and counterattack
The overthe openings that frame 140 is formed.In some embodiments, discharge gate 180 can be set in the lower section of shell 110.Work as Machine-made Sand
After comb seam in lower grate plate 150 leaks down, sand making machine 100 further can be discharged by discharge gate 180.In some implementations
In example, row's iron mouth 190 can be used for being discharged the foreign matters such as some iron blocks that can not be crushed, and be protected with being formed to the components in sand making machine
Shield.In some embodiments, it is also provided with below Pai Tiekou 190 and connects iron component.Specifically, connecing iron component may include connecing
Can, this, which connects can, can be used for accepting from foreign matters such as the iron blocks that can not be crushed being discharged of Pai Tiekou 190.
It is worth noting that, the description above with respect to sand making machine is only preferred embodiment of the present application, not to limit
The protection scope of the application.To those skilled in the art, it can be made on the basis of the embodiment of the present application appropriate
Change and modification, without departing from the protection scope of the application.For example, sand making machine 100 can also include hydraulic system, the hydraulic pressure system
System can be used for the back casing of flip cover 110, with impact rack 140 convenient to overhaul and rotor 130.In another example sand making machine can be with
It is disclosed including grate plate under sand making machine rotor, soft readjustment device, grate plate regulating device and sand making machine in the embodiment of the present application
One of technical characteristic or a variety of any combination.
Fig. 4 is the structural schematic diagram of the sand making machine rotor according to shown in the application some embodiments.Fig. 5 is according to the application
Cross-sectional view of the sand making machine rotor in the face B-B in Fig. 4 shown in some embodiments.As illustrated in figures 4-5, sand making machine rotor 130 can be with
Including main shaft 134, hammer disk 138, tup 135 and hammer ring 136.In the present embodiment, rotor 130 can also include the first sheave
131, bearing block 132, gland 133, spacer sleeve 137 and flywheel 139.
In some embodiments, at least two hammer disks 138 are installed on main shaft 134, can be rotated coaxially with main shaft 134.
For example, in the embodiment shown in fig. 4,7 hammer disks 138 are equidistantly installed on main shaft 134 side by side.In some alternate embodiments
In, the quantity of hammer disk 138 can be more or less.In some embodiments, the connection type of hammer disk 138 and main shaft 134 can be with
For key connection (such as flat key connection, spline connection).In some embodiments, the connection type of hammer disk 138 and main shaft 134 can also
Think pin connection, swelling connection, interference fit connection etc..
In some embodiments, at least two tups 135 and at least two hammer rings can be equipped between every two hammer disk 138
136.For example, every two, which is hammered into shape, is equipped with 8 tups and 8 hammer rings in the embodiment shown in Fig. 4-5 between disk 138.It is replaced some
For in property embodiment, tup and hammer number of rings amount between two hammer disks 138 can be more or less (for example, tup and hammer ring are each
There are 6,4,10 etc.).In some embodiments, the tups between two hammer disks 138 and hammer number of rings amount can be equal or not
It is equal.In some embodiments, tup 135 and hammer ring 136 circumferentially spaced can be evenly arranged.In some embodiments
In, tup 135 and hammer ring 136 can be along major axes orientation arranged for interval.Only pacify traditional crusher (such as sand making machine) rotor
The percussion device of single structure is filled, for example, rotor of hammer type crusher is only equipped with tup or hammer ring, impact crusher rotor
Fixed bar is only installed；The crushing function of such rotor is relatively simple, it is difficult to take into account the broken and shaping to material well
Function.The embodiment of the present application can both be protected by the arranged for interval tup 135 on major axes orientation and circumferencial direction and hammer ring 136
The crushing effect to material is demonstrate,proved, and the shaping effect to material can be taken into account.In some alternate embodiments, 135 He of tup
Hammering ring 136 into shape can also be using other arrangement.For example, tup 135 and hammer ring 136 can be only circumferentially spaced uniform
Arrangement, and arbitrarily arranged in major axes orientation.In another example tup 135 and hammer ring 136 can only along major axes orientation arranged for interval, and
It is in a circumferential direction arranged for interval two-by-two.In some embodiments, rotor outer ring is that tup and/or hammer ring are rotated with rotor
When be formed by track outer rim.In embodiments herein, maximum distance of the tup 135 away from 134 axle center of main shaft and hammer ring 136
Away from being equidistant for 134 axle center of main shaft.
It in some embodiments, can be spaced apart along major axes orientation equipped at least two groups between every two hammer disk 138
Tup 135 and hammer ring 136.For example, every two, which is hammered into shape, can be equipped with 4 groups along main in the embodiment shown in Fig. 4-5 between disk 138
The spaced apart tup 135 of axis direction and hammer ring 136, every group includes a tup and a hammer ring.In some alternative implementations
In example, every group also may include more tups and/or more hammer rings (for example, 2 tups, 1 hammer ring or 2 tups 2
A hammer ring etc.).
In the embodiment shown in Fig. 4-5, tup 135 can be solid metal object, and shape can be similar for fan
Shape.135 outwardly-facing surface of tup can be for using the shaft of main shaft as the cylindrical surface in axle center.It in some embodiments, can be to hammer
The front end portion (one side being in contact with material) of head carries out increasing contact surface and/or weight gain processing.Tup 135 can be used for
Broken material can effectively crush material.Hammering ring 136 into shape can be by the wearability steel alloy containing manganese, chromium component
Material is made.The cross sectional shape for hammering ring 136 into shape can be annulus.In embodiments herein, the width of tup 135 can be with hammer
The equivalent width of ring 136.
In some embodiments, tup 135 and hammer ring 136 can be located between two hammer disks 138 by spacer sleeve 137.
Specifically, at least two (such as 4) spacer sleeves can be installed between every two hammer disk 138 in the embodiment shown in Fig. 4-5
137.Spacer sleeve 137 may include two fixed arms, can be equipped with a fixing axle on every fixed arm.One end of fixing axle can
To be connected with tup 135, the other end of fixing axle can be arranged hammer ring 136.It in some embodiments, can be on hammer disk 138
Along the circumferential direction more of spaced set (such as 4) spacer sleeve fixing axle 1385, and by spacer sleeve 137 it is fixed be set in it is described between
In spacer fixing axle 1385.Specifically, spacer sleeve fixing axle 1385 can be connected through multiple hammer disks 138 and with hammer disk.It is fixed
Arm can be connected with spacer sleeve fixing axle 1385 and (such as be keyed).Fixing axle can be connected (such as key connection, weldering with fixed arm
It connects, be integrally formed).By the setting of spacer sleeve, the position of tup and hammer ring can be fixed up, and effectively to tup
It is isolated with hammer ring, to avoid collision.In some alternate embodiments, the both ends of fixing axle can be used to fixed hammer
135；Or the both ends of fixing axle can be used to be arranged hammer ring 136.It can also be in some alternate embodiments, in fixing axle
More than two tups and/or hammer ring are set.In some alternate embodiments, tup 135 and hammer ring 136 can also pass through it
His mode is arranged between two hammer disks 138.For example, can directly on hammer disk 138 along the circumferential direction more of spaced set
(such as 8) fixing axle, and tup is installed in the fixing axle, hammer ring set is located in the fixing axle.
In some embodiments, the internal diameter for hammering ring 136 into shape can be greater than the diameter of its fixing axle being arranged.For example, hammer ring
136 internal diameter can fix 1.3~2.5 times (such as 1.3 times, 1.5 times, 2 times, 2.5 times) of shaft diameter for it.Due to hammer ring
Internal diameter is bigger than fixed shaft diameter, and hammer ring is allow to float.When hammer ring encounters the too hard rubble of strong hardness or has the object that cannot be crushed
When body, hammer ring can retract, so as to reduce loss of the material to components such as hammer rings.In addition, hammer ring can be to material shape
At the effect of rolling compaction, and then the shape of Machine-made Sand can be made more mellow and fuller.In embodiments herein, material is hammered into shape
The power of ring may include hammering the centrifugal force of rotor rotation suffered by the gravity and hammer ring of ring itself into shape.In some alternative implementations
In example, hammer ring can also be connected with fixing axle.
In some embodiments, rotor 130 can also include two bearing blocks 132 and the first sheave 131.As shown in figure 4,
The bearing inner race of two bearing blocks 132 can be respectively sleeved at the both ends of main shaft 134；The pedestal of two bearing blocks 132 can be used
It is connected in the shell 110 of sand making machine.Gland 133 can be used for being sealed bearing block 132 and guaranteeing that the axial direction of bearing is fixed
Position.First sheave 131 can be connected with the first end of main shaft 134, for driving main shaft 134 to rotate.Specifically, driving equipment
120 can drive rotor 130 to rotate by first sheave 131.In the embodiment shown in fig. 4, rotor 130 can also include
The second end of flywheel 139, flywheel 139 and main shaft 134 is connected.Flywheel 139 is used as a kind of energy-storage travelling wave tube, can operate in rotor
Guarantee its stationarity in the process.In some alternate embodiments, the second end of main shaft 134 can be connected with the second sheave, the
One sheave 131 and the second sheave can drive main shaft 134 to rotate jointly, to realize the bilateral driving of rotor 130.
Sand making machine rotor involved in the application, tup are mainly used for broken material；The hammer ring that floats is mainly used for material
Shaping is carried out, and crushing can be reduced.By the modular design of tup and hammer ring, the broken effect to material both ensure that
Fruit, and taken into account to material shaping effect.It was verified that the crushing plant Machine-made Sand particle shape produced using the rotor is excellent
Different, gradation is more reasonable, rate containing powder is lower.
Fig. 6 is the structural schematic diagram of the counterpunch board according to shown in the application some embodiments and soft readjustment device.Such as Fig. 6
Shown, impact rack 140 is arc-shaped, is arranged above rotor 130.Specifically, impact rack 140 can be involute shape.One
In a little embodiments, impact rack 140 may include the counterattack panel 142 and counterpunch board 143 of involute shape setting.Counterpunch board
143 can be arranged in rows along the involute direction of counterattack panel 142, and form dentalation, to enhance crushing effect.Specifically
, it strikes back between panel 142 and impact rack 140, can be fixed by bolts between counterpunch board 143 and counterattack panel 142.Such as
Shown in Fig. 6, impact rack 140 can also include impact rack fixed rotating shaft 141, and the impact rack fixed rotating shaft 141 and impact rack 140 are solid
Even.By the impact rack fixed rotating shaft 141, impact rack 140 can be spindle rotationally arranged on sand making machine shell 110.Some
In embodiment, the position of impact rack 140 can be adjusted by soft readjustment device 160 (such as 160-1).For example, as shown in fig. 6,
It is rotated, and then made at counterpunch board 143 around impact rack fixed rotating shaft 141 by the adjustable impact rack 140 of soft readjustment device 160
In suitable angle, collide counterpunch board effectively with material.In some embodiments, material size, object can be based on
Impact rack 140 is adjusted in the factors such as the expectation degree for the treatment of of material, and impact rack 140 is made to be in suitable position.
Fig. 7-9 discloses a kind of soft readjustment device, which can be used for treating adjustment equipment (as struck back
Frame 140, lower grate plate 150 etc.) it is adjusted.Fig. 7 is the structure of the soft readjustment device according to shown in the application some embodiments
Schematic diagram.Fig. 8 be in Fig. 7 according to shown in the application some embodiments soft readjustment device in the cross-sectional view in the face C-C.Fig. 9 is
According to soft readjustment device in Fig. 8 shown in some embodiments of the application in the cross-sectional view in the face D-D.As Figure 7-9, flexible to adjust
Regulating device 160 may include that distance adjusts component 161, elastic force adjusts component 162 and spring base 163.
In some embodiments, it may include movable screw rod 1611, sealing ball cup 1612, branch that distance, which adjusts component 161,
Support ball cup 1613 and apart from adjusting nut；Seal ball cup 1612, support ball cup 1613, spring base 163 and apart from adjusting
Nut can be sequentially sleeved on movable screw rod 1611.In some embodiments, close to sealing ball cup on movable screw rod 1611
1612 and be connecting pin far from one end apart from adjusting nut, link block 1614, the link block 1614 can be equipped on connecting pin
It can be used for connecting with equipment to be regulated (such as impact rack 140, lower grate plate 150) and (being such as fixedly connected, or contact with each other).Distance
Adjusting component 161 can be used for adjusting the position of equipment to be regulated.For example, can control work by rotary distance adjusting nut
Dynamic screw rod 1611 stretches, and then adjusts the position of equipment to be regulated.In embodiments herein, sealing ball cup 1612 can
To be used for housing seal.For example, sealing ball cup 1612 can prevent material from entering from shell 110 in sand making machine 100
Soft readjustment device 160.In some embodiments, sealing ball cup 1612 can be float ball headstock, be set in movable wire
On bar 1611, it can be slided on movable screw rod 1611.Support ball cup 1613 can be used for supporting positioning.Specifically, support
Ball cup 1613 can be used for supporting the position of movable screw rod 1611 and holding activity screw rod 1611.In some embodiments, it props up
Support ball cup 1613 may include the internal screw thread matched with movable screw rod 1611.Movable screw rod 1611 can be screw rod, with branch
It supports ball cup 1613, be threadedly coupled apart from adjusting nut.It, can first basis when being adjusted using distance adjusting component 161
The ideal position adjusting activity screw rod 1611 of equipment to be regulated and the relative position of support ball cup 1613, then rotary distance are adjusted
Nut locks movable screw rod 1611 and spring base 163 and support ball cup 1613.
In some embodiments, it may include fixed screw rod 1621, spring 1622, connecting plate that elastic force, which adjusts component 162,
1623 and elastic force adjusting nut 1624；Spring base 163, spring 1622, connecting plate 1623 and elastic force adjusting nut 1624 successively cover
It is located on fixed screw rod 1621.Elastic force adjusting nut 1624 can be used between adjustment spring seat 163 and connecting plate 1623 away from
From.Specifically, one end of spring 1622 can be connected or contact with spring base 163.The other end of spring 1622 can be with connection
Plate 1623 is connected or contact.Fixed screw rod 1621 can be screw rod, be threadedly coupled with elastic force adjusting nut 1624.Elastic force adjusting group
Part 162 can be used for adjusting soft readjustment device 160 and treat the elastic force that adjustment equipment is applied.Specifically, passing through rotating elastic
Adjusting nut 1624, the distance between adjustable spring base 163 and connecting plate 1623, and then spring 1622 is adjusted to spring base
163 elastic force applied (i.e. soft readjustment device 160 treats the elastic force that adjustment equipment is applied).In some embodiments, Gu
(it can not show in figure with fixed device on fixed thread bar 1621 close to one end of the separate elastic force adjusting nut 1624 of spring base 163
It connects out), the fixation device and sand making machine shell 110 are connected.When adjusting elastic force adjusting component 162, due to apart from adjusting group
Part 161 (such as sealing ball cup 1612) is inconsistent with sand making machine shell 110, therefore works as and rotate in the forward direction elastic force adjusting nut 1624
When, elastic force adjusting nut 1624 can apply pressure to connecting plate 1623, and then reduce between connecting plate 1623 and spring base 163
Distance.After the completion of the adjusting of elastic force adjusting nut 1624, since one end of fixed screw rod 1621 and shell 110 are relatively fixed
(not relatively moving), then connecting plate 1623 is also relatively fixed with shell 110；Therefore, when movable screw rod 1611 is by wait adjust
When saving equipment to its pressure, pressure can be passed to spring base 163, and then be applied to spring 1622, spring 1622 can
To play the role of buffering (as overload retracts).In some embodiments, close to elastic force adjusting nut on fixed screw rod 1621
1624 and be also provided with screw rod sheath 1625 far from one end of spring base 163, to be adjusted to fixed screw rod 1621 and elastic force
Nut 1624 forms protection.
In some embodiments, soft readjustment device 160 may include that multiple groups distance adjusts component 161, the multiple groups distance
Component 161 is adjusted to be evenly arranged in the horizontal direction along spring base 163；Every two groups of distances are adjusted and can be equipped between component 161
At least one set of elastic force adjusts component 162.Specifically, every two groups of distances, which are adjusted, can equidistantly be equipped with two groups of elastic force between component 161
Adjust component 162.For example, in the embodiment shown in fig. 8, soft readjustment device 160 includes that 3 groups of distances adjust component 161, often
Two groups of distances, which are adjusted, is equidistantly equipped with two groups of elastic force adjusting components 162 between component 161.Component 161 and elastic force are adjusted by distance
The combination for adjusting component 162 is arranged in a crossed manner, the stress of soft readjustment device 160 everywhere can be made more to balance, thus preferably
Adjustment equipment is treated to be adjusted.
In some embodiments, as shown in figure 3, sand making machine 100 may include 3 sets of soft readjustment devices 160 (i.e. in Fig. 3
160-1,160-2 and 160-3).Wherein, soft readjustment device 160-1 can be used for adjusting impact rack 140 in sand making machine 100
Position.Further, since soft readjustment device 160-1 has spring rollback structure flexible, when impact rack 140 is strong by material
When big impact, soft readjustment device 160-1 can form impact rack 140 and buffer, and then formed and protected to impact rack 140.
Soft readjustment device 160-2 and/or soft readjustment device 160-3 can be used for adjusting lower grate plate 150 and rotor in sand making machine 100
Gap 1305 between 130 outer rings.For example, two sets of soft readjustment devices 160-2 and 160-3 may be respectively used for adjusting lower comb
Gap 1305 between 130 outer ring of 150 both ends of plate and the rotor.Further, since soft readjustment device 160-1 is with flexible
Spring rollback structure, when sand processed encounters in the process is difficult to broken material, soft readjustment device can be formed lower grate plate 150
Buffering, and then lower grate plate is formed and is protected.In some embodiments, the elastic force (or being spring force) of soft readjustment device 160
It can be adjusted according to hardness, the intensity of material.Specifically, rotating elastic adjusting nut 1624, adjustment spring can be passed through
Seat the distance between 163 and connecting plate 1623, and then adjust soft readjustment device 160 and treat the elastic force that adjustment equipment is applied.
The possible beneficial effect of soft readjustment device 160 disclosed herein includes but is not limited to: (1) adjusting dress
It sets easy to operate；(2) seal request between soft readjustment device and shell is effectively ensured；(3) it can be realized larger range of
Regulatory function；(4) adjustment equipment can be treated and form buffering.It should be noted that different embodiments are issuable beneficial to effect
Fruit is different, in different embodiments, it is possible to create beneficial effect can be the combinations of any of the above one or more, can also
Be other it is any can obtainable beneficial effect.
Figure 10-13 discloses a kind of grate plate regulating device, which may be implemented to above and below lower grate plate 150
It adjusts.Figure 10 is the structural schematic diagram of the grate plate regulating device according to shown in the application some embodiments.Figure 11 is according to this Shen
It please cross-sectional view of the grate plate regulating device in the face E-E in Figure 10 shown in some embodiments.Figure 12 is according to some implementations of the application
The detailed structure schematic diagram of grate plate regulating device shown in example.Figure 13 is the adjusting gasket according to shown in the application some embodiments
Structural schematic diagram.
As shown in figures 10-13, grate plate regulating device 155 may include grate plate support shaft 1553, sliding block 1554, lower jackscrew
1556, lower jackscrew fixed block 1560 and adjusting gasket 1555.1553 both ends of grate plate support shaft can be connect with sliding block 1554 respectively,
Moving up and down for grate plate support shaft 1533 can be driven by moving up and down for sliding block 1554, and then drives the upper of lower grate plate 150
Lower movement.Lower jackscrew 1556 can be threadedly coupled with lower jackscrew fixed block 1560, and lower jackscrew fixed block 1560 can be with sand making machine
Shell 110 be connected, to lower jackscrew 1556 provide support.The upper end of lower jackscrew 1556 may be rubbed against under sliding block 1554
End, the rotation of lower jackscrew 1556 can be moved up and down with movable slider 1554.In embodiments herein, lower jackscrew 1556 is spiral shell
Bar can rotate lower jackscrew by craft or instrument.In some alternate embodiments, lower jackscrew 1556 may be
Electronic screw rod etc..In some alternate embodiments, lower jackscrew 1556 can also be replaced by other regulating mechanisms, for example, can be with
Sliding block 1554 is adjusted using hydraulic jacking device.Being adjusted using hydraulic jacking device can make to adjust operation more
Simplicity, process are more steady；And the adjusting at 1553 both ends of grate plate support shaft can be made more synchronous.
In some embodiments, adjusting gasket 1555 can be placed between sliding block 1554 and lower jackscrew fixed block 1560,
It is used to support the gravity (also including the gravity of lower grate plate 150 and grate plate support shaft 1553) of sliding block 1554.Specifically, adjusting gasket
It can be filling pad (as shown in figure 13).In some embodiments, adjusting gasket can be metal gasket.
In some embodiments, grate plate regulating device 155 can also include upper jackscrew 1557 and upper jackscrew fixed block 1561.
Specifically, upper jackscrew 1557 can be screw rod, it is threadedly coupled with upper jackscrew fixed block 1561, upper jackscrew fixed block 1561 can be with
The shell 110 of sand making machine is connected, to provide support to upper jackscrew 1557.It the lower end of upper jackscrew 1557 can be with sliding block 1554
Upper-end contact.In actual operation, since active force is very big at runtime for sand making machine 100, upper jackscrew 1557 and upper jackscrew are used
The shaking of grate plate regulating device 155 (such as sliding block 1554) can be effectively reduced in fixed block 1561.
In some embodiments, grate plate regulating device 155 can also include sealing plate 1558, and sealing plate 1558 can be with cunning
Block 1554 is adjacent, is set in grate plate support shaft 1553.Sealing plate 1558 can be used for preventing Machine-made Sand from draining to cunning from shell 110
In block 1554, so that anti-limited slip block 1554 is blocked or is blocked in sliding process.It in some embodiments, can also be in sealing plate
Annular groove is set in 1558, and O-ring 1559 is set in the annular groove.O-ring 1559 can be made of rubber material.
By the setting of O-ring, can further lift-off seal plate 1558 sealing effect.
In some embodiments, grate plate regulating device 155 can also include the baffle for being limited to sliding block 1554
1551, which can be connected with the shell 110 of sand making machine 100.Baffle 1551 can be used for anti-limited slip block 1554 from branch
It falls off on support axis 1553.Specifically, baffle 1551 can be connected with shell 110 in several ways, such as it is threadedly coupled, clamping
Deng.In some embodiments, grate plate regulating device 155 can also include the cover board for being limited to adjusting gasket 1555
1552, cover board 1552 can be connected with the shell 110 of sand making machine 100.Cover board 1552 can be used for compressing adjusting gasket 1555.Tool
Body, cover board 1552 can be connected with shell 110 in several ways, such as be threadedly coupled, be clamped etc..
Above-mentioned grate plate regulating device 155 can be used for carrying out up and down adjustment to the lower grate plate 150 of sand making machine 100.Specifically
Adjustment process can be with are as follows: (1) rotates in the forward direction lower jackscrew 1556, lower jackscrew 1556 is moved up with movable slider 1554, and then is driven
Grate plate support shaft 1553 moves up；(2) adjusting gasket is introduced/taken out between sliding block 1554 and lower jackscrew fixed block 1560
1555；(3) lower jackscrew 1556 is reversely rotated, sliding block 1554 moves down until adjusting gasket 1555 bears the weight of sliding block 1554
Power.Specifically, can increase between sliding block 1554 and lower jackscrew fixed block 1560 when carrying out lifting operation to lower grate plate 150
Adjusting gasket 1555；When carrying out reducing operation to lower grate plate 150, it can subtract between sliding block 1554 and lower jackscrew fixed block 1560
Few adjusting gasket 1555.
The possible beneficial effect of grate plate regulating device 155 disclosed herein includes but is not limited to: (1) under realizing
The up and down adjustment of grate plate so that the upper arc surface of lower grate plate and rotor outer circle cylinder be concentric or essentially concentric, and then ensure that
The broken of sand making machine, shaping effect；(2) material/Machine-made Sand is effectively prevent to leak out from regulating device；(3) it adjusts easy to operate；
(4) regulating effect is stablized.It should be noted that the different issuable beneficial effects of embodiment are different, in different embodiments
In, it is possible to create beneficial effect can be the combinations of any of the above one or more, be also possible to other and any possible obtain
Beneficial effect.
Figure 14-20 discloses grate plate under a kind of sand making machine.Figure 14 is the lower grate plate according to shown in some embodiments of the application
Schematic perspective view；Figure 15 is the side structure schematic view of the lower grate plate according to shown in some embodiments of the application；Figure 16
It is the schematic view of the front view of the lower grate plate according to shown in some embodiments of the application；Figure 17 is according to some embodiments of the application
Shown in cross-sectional view of the lower grate plate in the face F-F in Figure 16；Figure 18 is bowing for the lower grate plate according to shown in some embodiments of the application
Depending on structural schematic diagram；Figure 19 is the structure schematic diagram of the grate plate according to shown in the application some embodiments；Figure 20 is basis
The positive structure schematic of grate plate shown in some embodiments of the application.
As shown in Figure 14-20, lower grate plate 150 may include grate plate bracket 151, grate plate 152 and fixing bolt 153.Grate plate
The locating groove 1523 cooperated with grate plate bracket 151 can be equipped on 152.152 back side of grate plate can be equipped with positioning bolt hole
1521, fixing bolt 153 can pass through the positioning bolt hole 1521 and grate plate 152 is fixed on grate plate bracket 151.
In some embodiments, as shown in Figure 19-20,152 surface of grate plate can be curved rectangular configuration, grate plate 152
Quadrangle on can be equipped with the locating groove 1523.In some embodiments, grate plate 152 or other structures shape,
For example, grate plate 152 can also be the structures such as curved triangle, pentagon, hexagon, circle, ellipse.In some embodiments
In, the locating groove of grate plate 152 may be other set-up modes.For example, the two of rectangular configuration can be bent in grate plate 152
Locating groove is arranged in a opposite side.In another example locating groove can also be arranged at the middle part of 152 side of grate plate.
In some embodiments, as shown in Figure 19-20, the comb seam 1522 of strip can be equipped in grate plate 152.Less than this
The Machine-made Sand of comb seam 1522 can be stitched in 1522 from the comb and be leaked out.Specifically, seam 1522 of combing can be set to various sizes, knot
Structure.It can transversely arranged in grate plate 152 or longitudinal arrangement for example, combing seam 1522.It can be in grate plate in another example combing seam 1522
Single-row arrangement, double arrangement or multiple rows of arrangement etc..In some embodiments, comb seam 1522 the positive opening of grate plate 152 can be with
Less than its opening at 152 back side of grate plate, to prevent material to be stuck in comb seam 1522.In some alternate embodiments, seam of combing
1522 can also be other shapes structure.For example, seam 1522 of combing can be the structures such as round, rectangular, arc.In some embodiments
In, the comb that different size can be set in different grate plates 152 stitches 1522 (for example, different comb slit width degree), thus in reality
In the operation of border, suitable grate plate can be selected according to the specification of sand to be prepared.
In some embodiments, 152 back side of grate plate can be equipped with 4 positioning bolt holes 1521.Specifically, 4 positioning spiral shells
Keyhole 1521 can be arranged symmetrically (as shown in figure 19) two-by-two.In some embodiments, the positioning bolt hole at 152 back side of grate plate
1521 quantity can be more or less.For example, 152 back side of grate plate can be equipped with 2 symmetrical positioning bolt holes.In another example
152 back side of grate plate can be equipped with 6 positioning bolt holes (i.e. side 3) being arranged symmetrically two-by-two.In some embodiments, it positions
Bolt hole 1521 can be set on the convex block of any Reasonable Shape.For example, the shape of convex block can be triangle, rectangle, half
Round or shape etc. as shown in Figure 19-20.
In some embodiments, the corresponding positioning bolt hole 1521 of adjacent two pieces of grate plates 152 can use same fixation
Bolt 153 is fixed.Specifically, for adjacent two pieces of grate plates, fixing bolt 153 can sequentially pass through the positioning of the first grate plate
The positioning bolt hole of bolt hole, the fixation hole on grate plate frame and the second grate plate, so that two pieces of adjacent grate plates be fixed.It is logical
Above-mentioned fixed form is crossed, the quantity of fixing bolt can be effectively reduced, and then being capable of save the cost.For close to grate plate bracket
It is across the positioning bolt hole 1521 by close end that grate plate 152 is fixed to can use fixing bolt 153 for the grate plate 152 of 151 ends
On the end of grate plate bracket 151.
In some embodiments, grate plate bracket 151 may include the grate plate bracket first component 1511 and grate plate bracket second
Component 1512.In the embodiment shown in fig. 15, the grate plate bracket first component 1511 and grate plate bracket second component 1512 can turn
It is set in grate plate support shaft 1553 dynamicly.By being divided to grate plate bracket 151 for two parts, lower comb can be more easily adjusted
Gap 1305 everywhere in being formed between 130 outer ring of plate 150 and rotor.In some alternate embodiments, grate plate bracket 151 may be used also
To be split into three components.For example, grate plate bracket can be split as to left part part, intermediate member and right members, and cover respectively
It is located in two grate plate support shafts.
In some embodiments, the grate plate bracket first component 1511 and grate plate bracket second component 1512 can be respectively with one
Soft readjustment device 160 is covered to connect.The adjustable grate plate bracket first component 1511 of soft readjustment device 160 and grate plate bracket
The position of the opposite grate plate support shaft 1553 of two component 1512, and then between adjustable lower grate plate both ends and 130 outer ring of rotor
Gap.In some embodiments, grate plate can also include adjusting for adjusting the grate plate that lower grate plate 150 moves up and down under sand making machine
Device 155.By two sets of soft readjustment devices 160 and the collective effect of grate plate regulating device 155, can effectively guarantee to comb
The arcwall face of plate and the concentricity of rotor outer circle cylinder, so as to so as to be formed between 130 outer ring of lower grate plate 150 and rotor each
The difference located between gap 1305 is less than first threshold.
The possible beneficial effect of grate plate includes but is not limited under sand making machine disclosed herein: (1) being able to produce
The more reasonable Machine-made Sand of gradation；(2) abrasion of fixing bolt is reduced；(3) usage quantity of fixing bolt is reduced；(4) it is convenient for tearing open
It unloads, replace and repairs.It should be noted that the different issuable beneficial effects of embodiment are different, in different embodiments,
Issuable beneficial effect can be the combination of any of the above one or more, and being also possible to other any obtainable can have
Beneficial effect.
The possible beneficial effect of sand making machine disclosed herein includes but is not limited to: (1) Machine-made Sand produced
Gradation is more reasonable；(2) Machine-made Sand rate containing powder produced is lower；It (3) can be with the production cost of saving mechanism sand；(4) it has both pair
The broken of material, shaping operation；(5) sand making machine long service life, operation are stablized.It should be noted that different embodiments may
The beneficial effect of generation is different, in different embodiments, it is possible to create beneficial effect to can be any of the above a kind of or several
Kind combination, be also possible to other it is any can obtainable beneficial effect.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Made any modifications, equivalent replacements, and improvements etc., should be included within the scope of protection of this application within mind and principle.
Claims (8)
1. a kind of grate plate regulating device, which is characterized in that including grate plate support shaft (1553), sliding block (1554), lower jackscrew
(1556), lower jackscrew fixed block (1560) and adjusting gasket (1555)；
Grate plate support shaft (1553) both ends are connect with the sliding block (1554) respectively；
The lower jackscrew (1556) is threadedly coupled with the lower jackscrew fixed block (1560), and the upper end of the lower jackscrew (1556) is supported
The lower end of the sliding block (1554), the rotation of the lower jackscrew (1556) drive the sliding block (1554) to move up and down；
The adjusting gasket (1555) is placed between the sliding block (1554) and the lower jackscrew fixed block (1560), for branch
Support the gravity of the sliding block (1554).
2. grate plate regulating device as described in claim 1, which is characterized in that on the grate plate regulating device (155) further includes
Jackscrew (1557) and upper jackscrew fixed block (1561)；
The upper jackscrew (1557) is threadedly coupled with the upper jackscrew fixed block (1561), the lower end of the upper jackscrew (1557) with
The upper-end contact of the sliding block (1554).
3. grate plate regulating device as described in claim 1, which is characterized in that the grate plate regulating device (155) further includes close
Sealing plate (1558), the sealing plate (1558) is adjacent with the sliding block (1554), is set on the grate plate support shaft (1553).
4. grate plate regulating device as claimed in claim 3, which is characterized in that it is recessed to be equipped with annular in the sealing plate (1558)
Slot is equipped with O-ring (1559) in the annular groove.
5. grate plate regulating device as described in claim 1, which is characterized in that the grate plate regulating device (155) further includes using
In the baffle (1551) limited to sliding block (1554), the shell (110) of the baffle (1551) and sand making machine (100) is solid
Even.
6. grate plate regulating device as described in claim 1, which is characterized in that the grate plate regulating device (155) further includes using
In the cover board (1552) limited to adjusting gasket (1555), the shell (110) of the cover board (1552) and sand making machine (100)
It is connected.
7. a kind of grate plate adjusting method characterized by comprising
It rotates in the forward direction lower jackscrew (1556), lower jackscrew (1556) band movable slider (1554) moves up, and then drives grate plate
Support shaft (1553) moves up；
Adjusting gasket (1555) are introduced/taken out between the sliding block (1554) and lower jackscrew fixed block (1560)；
It reversely rotates lower jackscrew (1556), the sliding block (1554) moves down until described in the adjusting gasket (1555) receiving
The gravity of sliding block (1554).
8. a kind of sand making machine, which is characterized in that including the described in any item grate plate regulating devices of claim 1~6.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018110038569 | 2018-08-30 | ||
| CN201811003856 | 2018-08-30 | ||
| CN201821802458 | 2018-11-02 | ||
| CN2018218024589 | 2018-11-02 |
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| CN201811326710.8A Active CN109395834B (en) | 2018-08-30 | 2018-11-08 | Grid plate adjusting device and sand making machine |
| CN201821836918.XU Active CN209205431U (en) | 2018-08-30 | 2018-11-08 | A kind of grate plate regulating device and sand making machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275101A (en) * | 2021-05-20 | 2021-08-20 | 黄石海纳新材料科技股份有限公司 | Wollastonite high-speed crusher |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395834B (en) * | 2018-08-30 | 2024-03-22 | 北京百旺环境科技股份有限公司 | Grid plate adjusting device and sand making machine |
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| CN209205431U (en) | 2019-08-06 |
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