CN111266284A - Sand screening machine for construction machinery - Google Patents
Sand screening machine for construction machinery Download PDFInfo
- Publication number
- CN111266284A CN111266284A CN202010077556.6A CN202010077556A CN111266284A CN 111266284 A CN111266284 A CN 111266284A CN 202010077556 A CN202010077556 A CN 202010077556A CN 111266284 A CN111266284 A CN 111266284A
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- Prior art keywords
- sand
- hydraulic
- buffer
- screen cylinder
- welded
- Prior art date
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- 239000004576 sand Substances 0.000 title claims abstract description 61
- 238000012216 screening Methods 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000005096 rolling process Methods 0.000 claims abstract description 31
- 230000003139 buffering effect Effects 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a building machinery sand screening machine, which structurally comprises a rolling screening mechanism, an auxiliary support plate, a damping mechanism, a support frame, an extension plate, a rotating motor and a coupling, wherein the rolling sand screening device is arranged, a rotating shaft rod drives a screen cylinder connected with a connecting rod to rotate, so that sand in the screen cylinder automatically flies out of the screen cylinder under the action of the rotation of the screen cylinder, fine sand can replace the traditional vibration screening in a roller mode, the phenomenon of load bearing caused by excessive sand accumulated in the screen can be avoided, sand can be rapidly screened, the damping mechanism is arranged, the vibration force can do work on a buffering upper top plate, the buffering upper top plate can vibrate, the hydraulic rod can be extruded by the buffering upper top plate, a valve block is driven by the hydraulic rod to extrude oil liquid in a main hydraulic cavity downwards, the small valve block is pushed to move, so that the buffer effect is achieved, and the vibration force is prevented from doing work on the ground.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a sand screening machine for construction machinery.
Background
With the continuous development of economic construction in China and the acceleration of urbanization process, urban infrastructure and real estate development in China are developed rapidly, the rapid improvement of concrete yield is promoted, in the building construction, sands with different diameters are generally needed to meet the building requirements of different occasions, so that the particle size of the sand needs to be screened, in the past, when the sand is screened, sand particles are usually screened in a vibration mode to meet the building requirements, but the prior art has the following defects:
when screening sand granule through the mode of vibration, when piling up too much sand on the screen cloth, make easily that the negative pressure is overweight in the vibration frame, under the effect of vibrator, the unable quick vibration that carries on of vibration frame causes the efficiency to the screening of sand to reduce, simultaneously, when screening sand through the mode of vibration, the frame is owing to under the drive of vibrator, will do work to the bottom surface, cause the bottom surface under the effect of vibrating force, will cause the destruction to the bottom surface, and cause equipment to take place the slope.
Summary of the invention
Technical problem to be solved
The invention provides a sand screening machine for construction machinery, which solves the problems that when excessive sand is accumulated on a screen when sand particles are screened in a vibration mode, negative pressure on a vibration rack is easy to be too heavy, the vibration rack cannot vibrate quickly under the action of a vibrator, so that the screening efficiency of the sand is reduced, and meanwhile, when the sand is screened in the vibration mode, the rack can do work on a bottom surface under the driving of the vibrator, so that the bottom surface is damaged under the action of vibration force, and equipment is inclined.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a building machinery sand screening machine structurally comprises a rolling screening mechanism, an auxiliary support plate, a damping mechanism, a support frame, an extension plate, a rotating motor and a coupler, wherein the right side of the rolling screening mechanism is mechanically connected with the coupler, the left side of the rolling screening mechanism is movably connected with the support frame, the auxiliary support plate is installed between the support frame, the lower end of the support frame is welded above the damping mechanism, the right side of the support frame is welded with the left side of the extension plate, the rotating motor is installed above the extension plate and is mechanically connected with the coupler, the lower side of the rolling screening mechanism is welded above the auxiliary support plate, the rolling screening mechanism comprises a shielding frame mechanism, a main support frame, a first discharge hole and a rolling sand screening device, the rolling sand screening device is installed inside the shielding frame mechanism, the shielding frame mechanism is installed in the main support frame and is fixedly connected with the main support frame, the first discharging hole and the total supporting frame are of an integrated structure.
Preferably, the shielding frame mechanism comprises a feeding hole, a shielding cover and a second discharging hole, the feeding hole and the shielding cover are of an integrated structure, the shielding cover and the second discharging hole are of an integrated structure, and the shielding cover is of a hollow cylindrical structure and is used for shielding sand screened by the rolling sand screening device and preventing the sand from splashing.
Preferably, the rolling sand screening device comprises a rotating shaft disc, a sealing cover, a screen cylinder, side sealing plates and a rotator, wherein the rotator is embedded into the rotating shaft disc, the sealing cover is movably connected with the screen cylinder, the screen cylinder is arranged between the side sealing plates and is connected with the side sealing plates through electric welding, the rotator is arranged inside the screen cylinder, and the side sealing plates are of circular-ring-column structures and used for sealing two sides of the screen cylinder.
Preferably, the rotator includes connecting rod, fixed arc board, rotatory axostylus axostyle, fixed arc board passes through the connecting rod and welds mutually with rotatory axostylus axostyle, the connecting rod is equipped with four altogether, and evenly distributed in the rotatory axostylus axostyle outside for carry out the effect of fixed restriction to a screen cloth section of thick bamboo, avoid a screen cloth section of thick bamboo under the effect of rotation power, the crooked radian of screen cloth surpasss the limit range.
Preferably, the damping mechanism comprises a hydraulic buffer, a buffer upper top plate, an outer support shell, a first buffer spring and a hinge frame, the lower portion of the buffer upper top plate is welded to the upper portion of the hinge frame, the upper portion of the hydraulic buffer is welded to the lower portion of the buffer upper top plate, the hydraulic buffer is connected with the hinge frame through the first buffer spring, the hydraulic buffer is installed inside the outer support shell, the first buffer spring is made of spring steel and used for pulling the hinge frame, and when the hinge frame is bent under the action of external force, the first buffer spring can buffer the hinge frame.
As preferred, hydraulic buffer includes hydraulic stem, total hydraulic chamber, second buffer spring, divides hydraulic chamber, valve block, connection fixed rod, little valve block, hydraulic stem below and valve block top weld mutually, the hydraulic stem imbeds in total hydraulic chamber inside, total hydraulic chamber and divide hydraulic chamber structure as an organic whole, second buffer spring is located divides hydraulic chamber inside, second buffer spring and little valve block weld mutually, total hydraulic chamber outside welding has the connection fixed rod, the valve block is installed in total hydraulic chamber inside, the valve block outer loop is equipped with the sealing ring, can play and carry out sealed effect to the fluid of total hydraulic chamber below.
(III) advantageous effects
The invention provides a sand screening machine for construction machinery. The method has the following beneficial effects:
1. according to the invention, the rolling sand screening device is arranged, and the rotating shaft rod drives the screen cylinder connected with the connecting rod to rotate, so that sand in the screen cylinder can automatically fly out of the screen cylinder under the action of the rotation of the screen cylinder, and can impact on the shielding cover and be discharged from the second discharge hole along the inner wall of the shielding cover under the action of the rotation force, the traditional vibration screening is replaced by a roller mode, the phenomenon of load bearing caused by excessive sand accumulation in the screen can be avoided, and the sand can be rapidly screened.
2. According to the invention, by arranging the damping mechanism, the vibration force can do work on the buffering upper top plate, so that the buffering upper top plate vibrates, the buffering upper top plate can extrude the hydraulic rod, the valve block is driven by the hydraulic rod to extrude oil in the main hydraulic cavity downwards, the small valve block is pushed to move, the small valve block pushes the second buffering spring to contract, and meanwhile, the hinge frame is folded downwards under the action of the buffering upper top plate, so that the first buffering spring is stretched, the effect of buffering is achieved, and the vibration force is prevented from doing work on the ground.
Drawings
FIG. 1 is a schematic structural diagram of a sand screening machine of construction machinery according to the present invention;
FIG. 2 is a front view of the rolling screen mechanism of the present invention;
FIG. 3 is a front view of the shadow frame mechanism of the present invention;
FIG. 4 is a schematic three-dimensional structure of the rolling sand screen of the present invention;
FIG. 5 is a perspective view of the rotator of the present invention;
FIG. 6 is a side view of the shock absorbing mechanism of the present invention;
FIG. 7 is a front view of a hydraulic shock absorber according to the present invention.
In the figure: the device comprises a rolling screening mechanism-1, an auxiliary support plate-2, a shock absorption mechanism-3, a support frame-4, an extension plate-5, a rotating motor-6, a coupler-7, a shielding frame mechanism-11, a total support frame-12, a first discharge hole-13, a rolling sand screening device-14, a feed hole-111, a shielding cover-112, a second discharge hole-113, a rotating shaft disc-141, a sealing cover-142, a screen cylinder-143, a side sealing plate-144, a rotator-145, a connecting rod-C1, a fixed arc plate-C2, a rotating shaft rod-C3, a hydraulic buffer-31, a buffer upper top plate-32, an outer support shell-33, a first buffer spring-34, a hinge frame-35, a hydraulic rod-311, a total hydraulic cavity-312, a hydraulic buffer-31, a hydraulic buffer and a hydraulic buffer cover-, A second buffer spring-313, a liquid separating pressure cavity-314, a valve block-315, a connecting and fixing rod-316 and a small valve block-317.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in figures 1 to 5:
the embodiment of the invention provides a building machinery sand screening machine, which structurally comprises a rolling screening mechanism 1, auxiliary support plates 2, a damping mechanism 3, a support frame 4, an extension plate 5, a rotating motor 6 and a coupler 7, wherein the right side of the rolling screening mechanism 1 is mechanically connected with the coupler 7, the left side of the rolling screening mechanism 1 is movably connected with the support frame 4, the auxiliary support plates 2 are arranged between the support frames 4, the lower end of the support frame 4 is welded above the damping mechanism 3, the right side of the support frame 4 is welded with the left side of the extension plate 5, the rotating motor 6 is arranged above the extension plate 5, the rotating motor 6 is mechanically connected with the coupler 7, the lower part of the rolling screening mechanism 1 is welded with the upper part of the auxiliary support plates 2, the rolling screening mechanism 1 comprises a shielding frame mechanism 11, a main support frame 12, a first discharge hole 13 and a rolling sand screening device 14, the rolling sand screening device 14 is installed inside the shielding frame mechanism 11, the shielding frame mechanism 11 is installed in the main support frame 12 and is fixedly connected with the main support frame 12, and the first discharge hole 13 and the main support frame 12 are of an integrated structure.
The shielding frame mechanism 11 includes a feeding hole 111, a shielding cover 112, and a second discharging hole 113, the feeding hole 111 and the shielding cover 112 are integrated, the shielding cover 112 and the second discharging hole 113 are integrated, and the shielding cover 112 is a hollow cylindrical tube structure for shielding sand screened by the rolling sand screening device 14 and preventing the sand from splashing.
The rolling sand screening device 14 comprises a rotating shaft disc 141, a sealing cover 142, a screen cylinder 143, side sealing plates 144 and a rotator 145, wherein the rotator 145 is embedded in the rotating shaft disc 141, the sealing cover 142 is movably connected with the screen cylinder 143, the screen cylinder 143 is arranged between the side sealing plates 144 and is connected through electric welding, the rotator 145 is installed in the screen cylinder 143, and the side sealing plates 144 are in a circular column structure and are used for sealing two sides of the screen cylinder 143.
The rotator 145 comprises a connecting rod C1, a fixed arc plate C2 and a rotating shaft lever C3, the fixed arc plate C2 is welded with the rotating shaft lever C3 through the connecting rod C1, the connecting rods C1 are four in number and are uniformly distributed on the outer side of the rotating shaft lever C3 to fix and limit the screen drum 143, and the screen drum 143 is prevented from exceeding the limit range due to the curvature of the screen mesh under the action of rotating force.
The specific working process is as follows:
after sand enters into screen cylinder 143 inside from sheltering from frame mechanism 11, screen cylinder 143 is inside to reach certain sand after, cover sealed lid 142, then rotate starting rotating electrical machines 6, it rotates to drive shaft coupling 7, thereby it is rotatory to let shaft coupling 7 drive rotatory axostylus axostyle C3, it rotates to drive screen cylinder 143 that connecting rod C1 is connected by rotatory axostylus axostyle C3, thereby let the inside sand of screen cylinder 143 under screen cylinder 143 pivoted effect, fine sand will be under the effect of rotatory power, inside automatic flying out screen cylinder 143, the striking is on housing 112, along housing 112 inner wall, discharge from second discharge opening 113, then discharge the equipment outside through first discharge opening 13.
Example 2
As shown in fig. 6 to 7:
the embodiment of the invention provides a construction machinery sand screening machine, wherein the damping mechanism 3 comprises a hydraulic buffer 31, a buffer upper top plate 32, an outer support shell 33, a first buffer spring 34 and a hinge frame 35, the lower part of the buffer upper top plate 32 is welded with the upper part of the hinge frame 35, the upper part of the hydraulic buffer 31 is welded with the lower part of the buffer upper top plate 32, the hydraulic buffer 31 is connected with the hinge frame 35 through the first buffer spring 34, the hydraulic buffer 31 is installed in the outer support shell 33, the first buffer spring 34 is made of spring steel and used for pulling the hinge frame 35, and when the hinge frame 35 is bent under the action of external force, the buffering effect can be achieved through the first buffer spring 34.
The hydraulic buffer 31 comprises a hydraulic rod 311, a main hydraulic cavity 312, a second buffer spring 313, a branch hydraulic cavity 314, a valve block 315, a connection fixing rod 316 and a small valve block 317, wherein the lower portion of the hydraulic rod 311 is welded to the upper portion of the valve block 315, the hydraulic rod 311 is embedded into the main hydraulic cavity 312, the main hydraulic cavity 312 and the branch hydraulic cavity 314 are of an integrated structure, the second buffer spring 313 is located in the branch hydraulic cavity 314, the second buffer spring 313 is welded to the small valve block 317, the connection fixing rod 316 is welded to the outer portion of the main hydraulic cavity 312, the valve block 315 is installed in the main hydraulic cavity 312, and a sealing ring is arranged on the outer ring of the valve block 315 and can play a role in sealing oil below the main hydraulic cavity 312.
The specific working process is as follows:
and when sieving the sand, produced vibrational force will be transmitted the top board 32 top on the buffering through support frame 4, the vibrational force will do work to the top board 32 on the buffering, cause the top board 32 on the buffering to take place vibrations, make the top board 32 on the buffering will extrude hydraulic stem 311, drive valve block 315 through hydraulic stem 311 and extrude total hydraulic chamber 312 inside fluid downwards, it removes to promote little valve block 317, promote the shrink of second buffer spring 313 by little valve block 317 again, hinge bracket 35 is under the effect of top board 32 on the buffering, will fold down, thereby lengthen 34 with first buffer spring, with this effect that reaches the buffering.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A construction machinery sand screening machine structurally comprises a rolling screening mechanism (1), auxiliary support plates (2), a damping mechanism (3), support frames (4), extension plates (5), a rotating motor (6) and a coupler (7), wherein the right side of the rolling screening mechanism (1) is mechanically connected with the coupler (7), the left side of the rolling screening mechanism (1) is movably connected with the support frames (4), the auxiliary support plates (2) are installed between the support frames (4), the lower end of the support frame (4) is welded above the damping mechanism (3), the right side of the support frame (4) is welded with the left side of the extension plates (5), the rotating motor (6) is installed above the extension plates (5), the rotating motor (6) is mechanically connected with the coupler (7), the lower side of the rolling screening mechanism (1) is welded with the upper side of the auxiliary support plates (2), the method is characterized in that:
roll screening mechanism (1) is including sheltering from frame mechanism (11), total carriage (12), first discharge opening (13), roll screening sand ware (14), shelter from frame mechanism (11) internally mounted and have roll screening sand ware (14), shelter from frame mechanism (11) and install in total carriage (12) and fixed connection, first discharge opening (13) and total carriage (12) structure as an organic whole.
2. The construction machine sand screen of claim 1, wherein: the shielding frame mechanism (11) comprises a feeding hole (111), a shielding cover (112) and a second discharging hole (113), the feeding hole (111) and the shielding cover (112) are of an integrated structure, the shielding cover (112) and the second discharging hole (113) are of an integrated structure, and the shielding cover (112) is of a hollow cylindrical tube structure and is used for shielding sand screened by the rolling sand screening device (14) and avoiding splashing of the sand.
3. The construction machine sand screen of claim 1, wherein: the rolling sand screening device (14) comprises a rotating shaft disc (141), a sealing cover (142), a screen cylinder (143), side sealing plates (144) and a rotator (145), wherein the rotator (145) is embedded in the rotating shaft disc (141), the sealing cover (142) is movably connected with the screen cylinder (143), the screen cylinder (143) is arranged between the side sealing plates (144) and is connected with the side sealing plates through electric welding, the rotator (145) is arranged in the screen cylinder (143), and the side sealing plates (144) are of circular ring column structures and are used for sealing two sides of the screen cylinder (143).
4. A construction machine sand screen according to claim 3, wherein: the rotator (145) comprises a connecting rod (C1), a fixed arc plate (C2) and a rotating shaft rod (C3), wherein the fixed arc plate (C2) is welded with the rotating shaft rod (C3) through the connecting rod (C1), the connecting rod (C1) is provided with four parts, the four parts are uniformly distributed on the outer side of the rotating shaft rod (C3) and used for fixing and limiting the screen cylinder (143), and the curved radian of the screen is prevented from exceeding the limiting range under the action of the rotating force of the screen cylinder (143).
5. The construction machine sand screen of claim 1, wherein: the damping mechanism (3) comprises a hydraulic buffer (31), a buffer upper top plate (32), an outer support shell (33), a first buffer spring (34) and a hinge frame (35), wherein the lower portion of the buffer upper top plate (32) is welded to the upper portion of the hinge frame (35), the upper portion of the hydraulic buffer (31) is welded to the lower portion of the buffer upper top plate (32), the hydraulic buffer (31) is connected with the hinge frame (35) through the first buffer spring (34), the hydraulic buffer (31) is installed inside the outer support shell (33), the first buffer spring (34) is made of spring steel and used for pulling the effect of the hinge frame (35), and when the hinge frame (35) is bent under the effect of external force, the buffering effect can be achieved through the first buffer spring (34).
6. The construction machine sand screen of claim 5, wherein: the hydraulic buffer (31) comprises a hydraulic rod (311), a total hydraulic cavity (312), a second buffer spring (313), a liquid dividing pressure cavity (314), a valve block (315), a connecting fixed rod (316) and a small valve block (317), the lower part of the hydraulic rod (311) is welded with the upper part of the valve block (315), the hydraulic rod (311) is embedded in the total hydraulic cavity (312), the total hydraulic cavity (312) and the liquid separating pressure cavity (314) are of an integrated structure, the second buffer spring (313) is positioned in the liquid separating pressure cavity (314), the second buffer spring (313) is welded with the small valve block (317), a connecting fixed rod (316) is welded outside the main hydraulic cavity (312), the valve block (315) is installed inside the main hydraulic cavity (312), and a sealing ring is arranged on the outer ring of the valve block (315) and can play a role in sealing oil below the main hydraulic cavity (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010077556.6A CN111266284B (en) | 2020-01-30 | 2020-01-30 | Sand screening machine for construction machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010077556.6A CN111266284B (en) | 2020-01-30 | 2020-01-30 | Sand screening machine for construction machinery |
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| CN111266284A true CN111266284A (en) | 2020-06-12 |
| CN111266284B CN111266284B (en) | 2021-07-09 |
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| CN207025790U (en) * | 2017-03-02 | 2018-02-23 | 北京城建九混凝土有限公司 | A kind of drum type sand screening machine |
| CN107377358A (en) * | 2017-08-22 | 2017-11-24 | 广州百士臣科技有限公司 | A kind of dustless sand sieving machine |
| CN207709336U (en) * | 2017-12-01 | 2018-08-10 | 三峡大学 | Rotary drum sand sieving device |
| CN208018910U (en) * | 2018-01-10 | 2018-10-30 | 深圳市宝金华混凝土有限公司 | A kind of sand-stone separator |
| CN208153614U (en) * | 2018-02-28 | 2018-11-27 | 成都纺织高等专科学校 | A kind of damping device |
| CN209006136U (en) * | 2018-09-04 | 2019-06-21 | 桂阳县舂陵湖食品有限公司 | A kind of food processing vibrating shaker device |
| CN209034785U (en) * | 2018-11-14 | 2019-06-28 | 杭州金鼎实业有限公司 | A kind of sand-stone separator |
| CN209452234U (en) * | 2018-12-22 | 2019-10-01 | 西安天盛混凝土有限公司 | A kind of aggregate screening plant |
| CN209772661U (en) * | 2019-01-25 | 2019-12-13 | 上海兆捷实业发展有限公司 | Concrete sand stone separator |
| CN109865656A (en) * | 2019-03-18 | 2019-06-11 | 孝感市佳的机械设备有限公司 | A kind of sorting mechanism of food processing station-service |
| CN209715642U (en) * | 2019-03-18 | 2019-12-03 | 孝感市佳的机械设备有限公司 | A kind of sorting mechanism of food processing station-service |
| CN209968899U (en) * | 2019-04-26 | 2020-01-21 | 四川衡鼎建材有限公司 | Sand and stone separator |
| CN110369260A (en) * | 2019-07-04 | 2019-10-25 | 杭州灵展科技有限公司 | A kind of sand separating equipment for building |
| CN110649308A (en) * | 2019-09-20 | 2020-01-03 | 崔来发 | Full-automatic equipment terminal equipment |
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Effective date of registration: 20210616 Address after: Jq635, 2nd floor, Pioneer Park, Taiwan Business District, Qianyuan village, Luoyang Town, Quanzhou City, Fujian Province, 362000 Applicant after: Quanzhou nachen Machinery Technology Co.,Ltd. Address before: 100089 room 103, precision testing laboratory, Beijing University of technology, No.5 Zhongguancun South Street, Haidian District, Beijing Applicant before: Zheng Zhikeng |
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