CN116695675B - Guide rod shock absorber of vibroflotation device - Google Patents
Guide rod shock absorber of vibroflotation device Download PDFInfo
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- CN116695675B CN116695675B CN202310740492.7A CN202310740492A CN116695675B CN 116695675 B CN116695675 B CN 116695675B CN 202310740492 A CN202310740492 A CN 202310740492A CN 116695675 B CN116695675 B CN 116695675B
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- sleeve
- hollow clamping
- clamping core
- guide rod
- vibration
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- 230000035939 shock Effects 0.000 title claims abstract description 31
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 239000000806 elastomer Substances 0.000 claims abstract description 23
- 238000001746 injection moulding Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 30
- 230000000694 effects Effects 0.000 abstract description 23
- 238000013016 damping Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 13
- 239000004033 plastic Substances 0.000 description 12
- 229920003023 plastic Polymers 0.000 description 12
- 238000000465 moulding Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
- E02D3/054—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation
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- 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
- F16F15/04—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 elastic means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a guide rod shock absorber of a vibroflotation device, which comprises a hollow clamping core arranged between a vibroflotation head and a guide rod, wherein a swinging base point of the vibroflotation head is positioned on the hollow clamping core, at least one limiting plate is arranged on the outer wall of the hollow clamping core, a sleeve for wrapping the limiting plate is sleeved outside the hollow clamping core, the bottom surface of the sleeve, which is used for being connected with the vibroflotation head, is sealed, an annular groove is formed between the top surface of the sleeve and the hollow clamping core, an injection molding gap is reserved between the top surface of the sleeve and the plane of the hollow clamping core, which is used for being connected with the guide rod, and an elastomer used for filling the inner space of the sleeve is sleeved on the outer wall of the hollow clamping core. The invention has good damping effect, high structural strength and difficult damage.
Description
Technical Field
The invention relates to the technical field of vibroflotation equipment, in particular to a guide rod shock absorber of a vibroflotation device.
Background
In some foundation scenes, a vibroflotation method is generally adopted to strengthen a foundation, and in the process of implementing the vibroflotation method, a vibroflotation device is required to generate a vibration force in a horizontal direction to vibrate and squeeze filler and surrounding soil mass, so that the bearing capacity, stability and earthquake liquefaction resistance of the foundation are improved.
The vibration punch is driven by the inertial force of the eccentric block during the fixed shaft rotation in the vibration punch to generate horizontal vibration force, so that during operation, the vibration is transmitted upwards from the vibration punch to the guide rail, and the actual motion track of the vibration punch takes the swing base point on the guide rod as the vertex cone.
The traditional vibroflotation device adopts the flange that the bumper shock absorber is general to be connected from top to bottom, is rubber cylinder and twine the interior cord outside rubber cylinder between the flange, in actual engineering construction scene, conventional vibroflotation device construction is usually below 35 meters, and is at most 80 meters, but in the vibroflotation device work progress of exceeding hundred meters, the shock attenuation effect of this kind of bumper shock absorber is relatively poor, intensity is lower, the durability is poor, if flange looseness or other damages in the work progress to make the bumper shock absorber separation drop in the pit, very difficult take out influences the construction progress.
Disclosure of Invention
The invention aims to provide a guide rod shock absorber of a vibroflotation device, which has good shock absorption effect, high structural strength and difficult damage.
In order to solve the technical problems, the invention adopts the following scheme:
the utility model provides a guide arm bumper shock absorber of vibroflotation ware, is including being used for locating the cavity card core between vibroflotation head and the guide arm, and the swing base point of vibroflotation head is located the axis of cavity card core, be equipped with at least one limiting plate on the cavity card core outer wall, cavity card core overcoat is equipped with the sleeve including the limiting plate parcel, be equipped with the through-hole corresponding with the inner chamber of cavity card core on the bottom plate that is used for being connected with vibroflotation head on the sleeve, the ring channel has been seted up between sleeve's roof and the cavity card core, leave the gap of moulding plastics between the top surface place plane that is used for with guide arm lug connection on the top surface of sleeve roof and the cavity card core, the bottom surface of cavity card core is located the sleeve and separates with telescopic bottom plate, the cover is equipped with the elastomer that is used for filling up sleeve inner space on the cavity card core outer wall. The elastic body can be made of rubber, and is provided with a through hole which communicates the inner cavity of the hollow clamping core with the through hole on the sleeve bottom plate. The sleeve is fixed outside the hollow clamping core through the arrangement of the elastic body, so that the vibration transmitted to the side wall of the sleeve can be transmitted to the elastic body in a mode of deviating from the hollow clamping core shaft to the left and right, and the elastic body absorbs the vibration through the elastic performance of the elastic body to play a role in damping; the hollow clamping core is perpendicular to the ground in the working state of the vibrating punch, and the elastic body in the sleeve can be supported by the arrangement of the limiting plate, so that the gravity of the vibrating punch is transmitted to the guide rod after passing through the sleeve, the elastic body, the limiting plate and the hollow clamping core in sequence, and the guide rod, the hollow clamping core and the vibrating punch are strong in overall structural strength and not easy to damage; meanwhile, the vibration transmitted to the elastic body can be transmitted to the limiting plate, the limiting plate transmits the received vibration to the hollow clamping core in an up-down offset mode, and the vibration in the left-right direction can be reduced by applying the vibration in the up-down direction, so that the damping effect of the elastic body on the hollow clamping core is further improved; because the drift shakes when vibrating, the sleeve top surface has the trend of vibrating for the cavity card core, through the setting of the gap of moulding plastics and ring channel of sleeve top surface top, make the elastomer can be full of in the ring channel to reduce the vibration of sleeve top surface towards the cavity card core, further promoted holistic shock attenuation effect of bumper shock absorber.
Further, the swing base point is located on the axis of the hollow clamping core inside the sleeve. The elastic body has the function of eliminating vibration at the swinging base point as far as possible by arranging the swinging base point inside the sleeve (namely, arranging the sleeve at the swinging base point to enable the swinging base point to be positioned between the top surface of the sleeve and the bottom surface of the sleeve), so that the vibration is prevented from being transmitted to the guide rod, and the damping effect on the guide rod is achieved.
Further, two limiting plates perpendicular to the hollow clamping core are arranged on the outer wall of the hollow clamping core, the swing base point is located between the two limiting plates, and an injection molding gap is reserved between the limiting plates and the inner wall of the sleeve. The vibration damper has the advantages that the vibration base point is arranged between the two limiting plates, vibration transmitted to the vibration base point by the vibration punch can be transmitted to the two limiting plates after passing through the elastic body, most of vibration received by the two limiting plates can be transmitted back and forth between the two limiting plates, most of vibration transmitted to the vibration base point on the hollow clamping core is eliminated through the elastic body between the two limiting plates, the transmission of the vibration to the guide rod is reduced as much as possible, and the vibration damping effect is good; through the setting of the gap of moulding plastics between limiting plate and the sleeve inner wall, make the elastomer can flow to the sleeve in the region that is located the limiting plate below through this gap of moulding plastics at injection molding's in-process to make the elastomer can be full of in the sleeve.
Further, in the normal working state of the vibrating punch, the swinging base point is located at the center position adjacent to the space between the two limiting plates. The main influence factors of the height position of the swinging base point are two points, the first point is that the height position of the swinging base point is different according to the different weights of the vibrating punches, and hollow clamping cores and sleeves with different sizes are adopted according to the different vibrating punches, so that the swinging base point is positioned at the center position between the two limiting plates as much as possible; the second point is that the resistance of the vibrating punch head received during the normal working state is changed, so that the height position of the swinging base point is changed, and therefore, only the height range of the position of the swinging base point is limited, but the height range is difficult to be limited at any point. The vibration transmission device has the advantages that vibration transmitted towards the swing base point is transmitted to the two limiting plates as symmetrically as possible, the trough of the vibration wave on one limiting plate meets the crest of the vibration wave on the other limiting plate as much as possible, so that the intensity of the vibration wave after superposition of the vibration waves emitted by the two limiting plates is weakened, the vibration absorption effect of the two limiting plates on the vibration transmitted by the swing base point is improved, the vibration transmission to the guide rod is reduced as much as possible, and the vibration absorption effect is good.
Further, a baffle plate parallel to the limiting plates is arranged on the inner wall of the sleeve, the baffle plate is arranged between two adjacent limiting plates, and an injection molding gap is reserved between the baffle plate and the hollow clamping core. The vibration damping device has the function that by arranging the baffle plate, the vibration waves after the superposition and weakening of the two vibration waves can be transmitted to the elastic bodies in the areas except the two limiting plates, the elastic bodies in the areas can be used for further damping treatment, and the vibration waves transmitted to the baffle plate are the vibration waves after the attenuation, so that the vibration on the baffle plate is hardly transmitted to the sleeve.
Further, the baffle plate is provided with a region overlapped with the limiting plate in the axial view angle of the hollow clamping shaft. The vibration-absorbing damper has the advantages that the vibration-absorbing damper can further support the elastic body through the length of the baffle, and meanwhile vibration transmitted by one side, far away from the hollow clamping core, of the limiting plate is reflected to the elastic body in the area beyond the two limiting plates to absorb vibration.
Further, the elastic body comprises a sealing area and an exposed area, the sealing area is filled in the sleeve, and the exposed area is filled in the area, which is sleeved on the hollow clamping core and is positioned between the sleeve and the guide rod. The vibration punch head has the function that vibration can be transmitted to the sleeve in the swinging process, so that the sleeve has a trend of moving towards the guide rod, and the vibration between the sleeve and the guide rod can be reduced through the arrangement of the exposed area.
Further, the rib parallel to the axis of the sleeve is uniformly arranged on the inner wall of the sleeve around the axis of the sleeve, the limiting plate radially extends outwards along the limiting plate, at least two limiting strips are uniformly distributed around the axis of the hollow clamping core, an arc-shaped rotating area is formed between every two adjacent limiting strips, and a rib is arranged in each rotating area. The hollow clamping core has the tendency of rotating around the axis of the hollow clamping core in the working process of the vibrating punch, and the elastic body is filled between the rib and the limiting strip through the arrangement of the rib and the limiting strip, so that the limiting strip is prevented from moving along the circumferential direction of the hollow clamping core, and the sleeve is prevented from rotating around the hollow clamping core greatly; meanwhile, due to the spatial arrangement of the ribs, the ribs have the guiding effect on the elastic bodies of the limit strips and the sealing areas, and the elastic bodies of the hollow clamping cores and the sealing areas are guided to move up and down along the extending direction of the ribs around the swinging of the swinging base points and the movement trend of the elastic bodies in other directions, so that the vibration generated by the swinging of the vibrating punch is weakened, and the damping effect is enhanced.
Further, the sealing area is hollow cylindrical, the height of the sealing area is 400-500 mm, the outer diameter of the sealing area is 400-460 mm, and the wall thickness of the sealing area is 20-30 mm.
Further, the difference between the inner diameter and the outer diameter of the annular groove is 20 mm-30 mm. The external diameter of ring channel is less than the external diameter of guide arm, and the thickness of limiting plate is 20mm ~40mm, and the inner chamber diameter of cavity card core is 80mm ~120mm.
Further, the exposed area is in a hollow cylinder shape, and the outer diameter of the exposed area is smaller than that of the sleeve. The outer diameter of the exposed area is smaller than the outer diameter of the guide rod. The shock absorber has the advantages that due to the design of the outer diameter of the exposed area, the sleeve or the guide rod can be prevented from generating the indentation on the exposed area, so that the damage to the exposed area is avoided, and the structural integrity and the structural strength of the exposed area in the shock absorbing process are ensured.
The invention has the beneficial effects that:
1. the side of the hollow clamping core, which faces the guide rod, is taken as the upper part of the hollow clamping core, the side of the hollow clamping core, which faces the vibration punch, is taken as the lower part of the hollow clamping core, and the sleeve can be fixed outside the hollow clamping core through the arrangement of the elastic body, so that the vibration transmitted to the side wall of the sleeve can be transmitted to the elastic body in a mode of deviating from the hollow clamping core to deviate left and right, and the elastic body absorbs the vibration through the elastic performance of the elastic body to play a role of damping;
2. the hollow clamping core is perpendicular to the ground in the working state of the vibrating punch, and the elastic body in the sleeve can be supported by the arrangement of the limiting plate, so that the gravity of the vibrating punch is transmitted to the guide rod after passing through the sleeve, the elastic body, the limiting plate and the hollow clamping core in sequence, and the guide rod, the hollow clamping core and the vibrating punch are strong in overall structural strength and not easy to damage;
3. through the arrangement of the limiting plate, the vibration transmitted to the elastomer can be transmitted to the limiting plate, the limiting plate transmits the received vibration to the hollow clamping core in an up-down offset mode, and the vibration in the left-right direction can be reduced by applying the vibration in the up-down direction, so that the shock absorption effect of the elastomer on the hollow clamping core is further improved;
4. because the drift shakes when vibrating, the sleeve top surface has the trend of vibrating for the cavity card core, through the setting of the gap of moulding plastics and ring channel of sleeve top surface top, make the elastomer can be full of in the ring channel to reduce the vibration of sleeve top surface towards the cavity card core, further promoted holistic shock attenuation effect of bumper shock absorber.
Drawings
FIG. 1 is a schematic view showing a three-dimensional semi-sectional structure of example 1 when it is not filled with an elastomer;
FIG. 2 is a schematic view showing the operation state of the shock absorber in embodiment 1;
FIG. 3 is a schematic cross-sectional structure of a shock absorber in embodiment 2;
FIG. 4 is a schematic cross-sectional structural view of example 3 under the top plate of the sleeve without being filled with elastomer;
fig. 5 is a schematic view showing a three-dimensional semi-sectional structure of example 3 when it is not filled with an elastomer.
Reference numerals: 1. vibrating the punch; 2. a guide rod; 3. a swing base point; 4. a hollow clamping core; 5. a limiting plate; 6. a sleeve; 7. an annular groove; 8. injection molding the gap; 9. an elastomer; 10. a baffle; 11. a sealing area; 12. a bare area; 13. swing amplitude; 14. a baffle ring; 15. a rib; 16. a limit bar; 17. a rotation zone.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The utility model provides a guide arm bumper shock absorber of vibroflotation, shown in fig. 1, including being used for locating the cavity card core 4 between vibroflotation head 1 and the guide arm 2, cavity card core 4 is hollow cylindric, and the swing base point 3 of vibroflotation head 1 is located the axis of cavity card core 4, be equipped with at least one limiting plate 5 on the cavity card core 4 outer wall, cavity card core 4 overcoat is equipped with the sleeve 6 including the limiting plate 5 parcel, sleeve 6 is the hollow cylinder that divides into two halves through self axis, be equipped with the opening corresponding with the inner chamber of cavity card core 4 on the bottom plate that is used for being connected with vibroflotation head 1 on the sleeve 6, this opening is the coaxial cylindric that sets up with the inner chamber of cavity card core 4, and the diameter of this opening is the same with the inner chamber diameter of cavity card core 4, offer ring channel 7 between the roof of sleeve 6 and the cavity card core 4, as shown in fig. 2, the top surface and the hollow card core 4 of sleeve 6 roof be used for leaving between the plane that is connected with guide arm 2 and mould plastics gap 8, the bottom surface of cavity card core 4 is located sleeve 6 and is separated with the bottom plate of sleeve 6, sleeve 6 is equipped with the inner space 9 is used for filling up with sleeve 6 on the outer wall 4. The elastic body 9 can be made of rubber, and the elastic body 9 is provided with a through hole which communicates the inner cavity of the hollow clamping core 4 with a through hole on the bottom plate of the sleeve 6. The vibration absorbing device has the advantages that one side of the hollow clamping core 4 facing the guide rod 2 is taken as the upper side of the hollow clamping core 4, one side of the hollow clamping core 4 facing the vibration punch 1 is taken as the lower side of the hollow clamping core 4, the sleeve 6 can be fixed outside the hollow clamping core 4 through the arrangement of the elastic body 9, the vibration transmitted to the side wall of the sleeve 6 can be transmitted to the elastic body 9 in a mode of deviating from the hollow clamping core 4 to the left and right, and the elastic body 9 absorbs the vibration through the elastic performance of the elastic body to achieve a vibration absorbing effect; because the hollow clamping core 4 is arranged vertically to the ground in the working state of the vibration punch head 1, the elastic body 9 in the sleeve 6 can be supported by the arrangement of the limiting plate 5, and the gravity of the vibration punch head 1 is transmitted to the guide rod 2 after passing through the sleeve 6, the elastic body 9, the limiting plate 5 and the hollow clamping core 4 in sequence, so that the guide rod 2, the hollow clamping core 4 and the vibration punch head 1 have strong overall structural strength and are not easy to damage; meanwhile, the vibration transmitted to the elastic body 9 can be transmitted to the limiting plate 5, the limiting plate 5 transmits the received vibration to the hollow clamping core 4 in a vertically-offset mode, and the vibration in the left-right direction can be reduced by applying the vibration in the vertical direction, so that the damping effect of the elastic body 9 on the hollow clamping core 4 is further improved; because the drift 1 shakes when vibrating, sleeve 6 top surface has the trend of vibrating for cavity block 4, through the setting of the gap 8 of moulding plastics and ring channel 7 of sleeve 6 top surface top, make elastomer 9 can be full of in the ring channel 7 to reduce sleeve 6 top surface towards cavity block 4's vibration, further promoted the holistic shock attenuation effect of bumper shock absorber.
Specifically, as shown in fig. 2, the swing base point 3 is located on the axis of the hollow card core 4 inside the sleeve 6. The function is that the elastic body 9 can eliminate the vibration of the swinging base point 3 as far as possible by arranging the swinging base point 3 inside the sleeve 6 (namely, arranging the sleeve 6 at the swinging base point 3 to enable the swinging base point 3 to be positioned between the top surface of the sleeve 6 and the bottom surface of the sleeve 6), so that the vibration is prevented from being transmitted to the guide rod 2, and the damping function on the guide rod 2 is achieved.
Specifically, as shown in fig. 2, two limiting plates 5 perpendicular to the hollow clamping core 4 are arranged on the outer wall of the hollow clamping core 4, the swing base point 3 is located between the two limiting plates 5, and an injection molding gap 8 is reserved between the limiting plates 5 and the inner wall of the sleeve 6. The vibration-damping device has the advantages that the vibration base point 3 is arranged between the two limiting plates 5, so that vibration transmitted to the vibration base point 3 by the vibration punch 1 can be transmitted to the two limiting plates 5 after passing through the elastic body 9, most of vibration received by the two limiting plates 5 can be transmitted back and forth between the two limiting plates 5, most of vibration transmitted to the vibration base point 3 on the hollow clamping core 4 is eliminated through the elastic body 9 arranged between the two limiting plates 5, the vibration is transmitted to the guide rod 2 as much as possible, and the vibration-damping effect is good; through the setting of the gap 8 of moulding plastics between limiting plate 5 and the sleeve 6 inner wall, make elastomer 9 can flow to the sleeve 6 in the region that is located limiting plate 5 below through this gap 8 of moulding plastics in-process of moulding plastics to make elastomer 9 can be full of in the sleeve 6.
Specifically, as shown in fig. 2, in the normal operation state of the vibration punch 1, the swing base point 3 is located at a central position adjacent to the space between the two limiting plates 5. The main influence factors of the height position of the swinging base point 3 are two points, the first point is that the height position of the swinging base point 3 is different according to the different weights of the vibrating punch heads 1, and hollow clamping cores 4 and sleeves 6 with different sizes are adopted according to the different vibrating punch heads 1 so that the swinging base point 3 is positioned at the center position between the two limiting plates 5 as much as possible; the second point is that the resistance of the vibrating punch 1 received during the normal operation state is varied, and thus the height position of the swinging base point 3 is varied, so that only the height range of the position of the swinging base point 3 can be limited, but it is difficult to limit at any point. The vibration transmitting device has the advantages that vibration transmitted towards the swinging base point 3 is transmitted to the two limiting plates 5 as symmetrically as possible, the trough of the vibration wave on one limiting plate 5 meets the crest of the vibration wave on the other limiting plate 5 as much as possible, so that the intensity of the vibration wave after superposition of the vibration waves emitted by the two limiting plates 5 is weakened, the vibration absorbing effect of the two limiting plates 5 on the vibration transmitted by the swinging base point 3 is improved, the vibration transmitted to the guide rod 2 is reduced as much as possible, and the vibration absorbing effect is good.
Specifically, as shown in fig. 2, a baffle 10 parallel to the limiting plates 5 is disposed on the inner wall of the sleeve 6, the baffle 10 is disposed between two adjacent limiting plates 5, and an injection molding gap 8 is left between the baffle 10 and the hollow clamping core 4. The damper is provided with the damper 10, and the vibration wave after the superposition and attenuation of the two vibration waves can be transmitted to the elastic body 9 in the region other than the two limiting plates 5, and further vibration reduction processing can be performed by the elastic body 9 in the region, and the vibration wave transmitted to the damper 10 is already the vibration wave after the attenuation, so that the vibration on the damper 10 is hardly transmitted to the sleeve 6.
Specifically, as shown in fig. 2, the baffle 10 has a region overlapping with the limiting plate 5 in the axial view of the hollow cartridge 4. The vibration damper has the effects that the elastic body 9 can be further supported through the length of the baffle 10, and meanwhile vibration transmitted by the side, away from the hollow clamping core 4, of the limiting plate 5 can be reflected to the elastic body 9 in the area outside the two limiting plates 5 for damping.
Specifically, as shown in fig. 2, the elastomer 9 includes a sealing area 11 and an exposed area 12, the sealing area 11 is filled in the sleeve 6, and the exposed area 12 is filled in the area between the sleeve 6 and the guide rod 2 on the hollow card core 4. The vibration punch 1 transmits vibration to the sleeve 6 in the swinging process, so that the sleeve 6 tends to move towards the guide rod 2, and the vibration between the sleeve 6 and the guide rod 2 can be reduced through the arrangement of the exposed area 12.
Specifically, the sealing area 11 is hollow cylindrical, the height of the sealing area 11 is 500mm, the outer diameter of the sealing area 11 is 460mm, and the wall thickness of the sealing area 11 is 30mm.
Specifically, the difference between the inner and outer diameters of the annular groove 7 is 20mm. The outer diameter of the annular groove 7 is smaller than that of the guide rod 2, the thickness of the limiting plate 5 is 30mm, and the diameter of the inner cavity of the hollow clamping core 4 is 80mm.
Specifically, as shown in fig. 2, the exposed area 12 is in a hollow cylinder shape, and the outer diameter of the exposed area 12 is smaller than the outer diameter of the sleeve 6. The exposed area 12 has an outer diameter smaller than the outer diameter of the guide rod 2. The function of the shock absorber is that through the design of the outer diameter of the exposed area 12, the sleeve 6 or the guide rod 2 can be prevented from generating an indentation on the exposed area 12, so that the damage to the exposed area 12 is avoided, and the structural integrity and the structural strength of the exposed area 12 in the shock absorbing process are ensured.
The installation method of the embodiment is as follows, firstly, the top surface of the hollow clamping core 4 is welded on the bottom surface of the guide rail 2, then two half sleeves 6 are respectively arranged outside the hollow clamping core 4 from the left side and the right side of the hollow clamping core 4 and then welded into a whole, then injection molding is carried out, and finally, the bottom surface of the sleeve 6 is welded with the top surface of the vibration punch head 1.
The injection molding method of this example is described below: the method comprises the following steps:
step S1: firstly, an annular sealing belt surrounds the guide rod 2 and is covered on the top surface of the sleeve 6, so that the sealing belt completely covers the area between the top surface of the sleeve 6 and the bottom surface of the guide rod 2, and injection molding holes are formed in the sealing belt in a penetrating manner;
step S2: a continuous round rod equal to the outer diameters of the hollow clamping core 4 and the inner cavity and the through holes on the bottom plate of the sleeve 6 is inserted into the inner cavity of the hollow clamping core 4 through the through holes.
Step S2: injecting a liquid elastomer 9 into the sleeve 6 through the injection hole, wherein the elastomer 9 firstly fills the space in the sleeve 6 to form a sealing area 11 and then fills the gap between the top surface of the sleeve 6 and the guide rod 2 to form a naked area 12, and when the sealing area 11 is formed by the elastomer 9, a through hole for communicating the inner cavity of the hollow clamping core 4 with a through hole on the bottom plate of the sleeve 6 is formed due to the blocking of the round rod;
step S4: and taking off the sealing band after the elastomer 9 is solidified.
The working principle of this embodiment is explained as follows: when the vibration head generates a conical motion with the vibration amplitude 13 taking the vibration base point 3 as a vertex, part of vibration generated at the vibration base point is transferred to the side wall of the hollow clamping core 4 and then transferred to the elastic body 9 in a left-right swinging mode to be damped, the vibration generated at the vibration base point is transferred to the limiting plate 5 and then transferred to the elastic body 9 in an up-down swinging mode to be damped, and meanwhile, the interference of waves is utilized to weaken superimposed vibration waves, so that the integral damping effect of the damper is improved.
Example 2
The utility model provides a guide arm bumper shock absorber of vibroflotation ware, is shown as fig. 3, including locating the cavity card core 4 between vibroflotation punch 1 and the guide arm 2, the swing base point 3 of vibroflotation punch 1 is located cavity card core 4, be equipped with at least one limiting plate 5 on the cavity card core 4 outer wall, cavity card core 4 overcoat is equipped with sleeve 6 including the limiting plate 5 parcel, sleeve 6 is used for sealing with the bottom surface that vibroflotation punch 1 is connected, annular groove 7 has been seted up between sleeve 6 top surface and the cavity card core 4, annular groove 7 is the gap 8 of moulding plastics, the cover is equipped with the elastomer 9 that is used for filling up sleeve 6 inner space on the cavity card core 4 outer wall. The junction of cavity block core 4 and guide arm 2 is located sleeve 6, still includes fixed connection in the baffle ring 14 of guide arm 2 bottom, and the annular plate has the region that overlaps with sleeve 6 top surface on cavity block core 4 axial view, and the external diameter of baffle ring 14 is greater than the external diameter of ring channel 7 promptly, and elastomer 9 fills the space in the sleeve 6 from ring channel 7 department, leaves the gap 8 of moulding plastics between baffle ring 14 and the sleeve 6 inner wall. The elastic body 9 between the top surfaces of the baffle ring 14 and the sleeve 6 and the baffle ring 14 plays a role in supporting the top surface of the sleeve 6 through the design of the baffle ring 14 and the sleeve 6, so that the structural strength between the shock absorber and the guide rod 2 is enhanced, and the shock absorbing effect of the shock absorber on the guide rod 2 is enhanced.
Specifically, as shown in fig. 3, the swing base point 3 is located on the axis of the hollow card core 4 inside the sleeve 6.
Specifically, as shown in fig. 3, two limiting plates 5 perpendicular to the hollow clamping core 4 are arranged on the outer wall of the hollow clamping core 4, the swing base point 3 is located between the two limiting plates 5, and an injection molding gap 8 is reserved between the limiting plates 5 and the inner wall of the sleeve 6.
Specifically, as shown in fig. 3, a baffle 10 parallel to the limiting plate 5 is disposed on the inner wall of the sleeve 6, and an injection molding gap 8 is left between the baffle 10 and the hollow clamping core 4. The function of this is to transmit vibrations on the side wall of the sleeve 6 to the elastic body 9 via the baffle 10 by the arrangement of the baffle 10.
The rest of the structure and the working principle are the same as those of the embodiment 1.
Example 3
As shown in fig. 4 and 5, ribs 15 parallel to the axis of the sleeve 6 are uniformly arranged on the inner wall of the sleeve 6 around the axis of the sleeve 6, the ribs 15 extend from the bottom plate of the sleeve 6 to the bottom plate of the sleeve 6, the side walls of the ribs 15 protrude towards the axis of the hollow clamping core 4, limiting strips 16 extend outwards radially along the limiting plates 5, at least two limiting strips 16 are uniformly distributed around the axis of the hollow clamping core 4, an arc-shaped rotating area 17 is formed between every two adjacent limiting strips 16, and one rib 15 is arranged in each rotating area 17. The arc length of each turning region 17 is greater than the width of the corresponding rib 15. The hollow clamping core 4 has the tendency of rotating around the axis of the hollow clamping core 4 in the working process of the vibration punch head 1, and the elastic body 9 is filled between the rib 15 and the limiting strip 16 through the arrangement of the rib 15 and the limiting strip 16, so that the limiting strip 16 is prevented from moving along the circumferential direction of the hollow clamping core 4, and the sleeve 6 is prevented from rotating around the hollow clamping core 4 greatly; meanwhile, due to the spatial arrangement of the ribs 15, the ribs 15 have the guiding function on the limit strips 16 and the elastic bodies 9 of the sealing area 11, and the swinging of the hollow clamping core 4 and the elastic bodies 9 of the sealing area 11 around the swinging base point 3 and the movement trend in other directions are guided to move up and down along the extending direction of the ribs 15, so that the vibration generated by the swinging of the vibrating punch head 1 is weakened, and the damping effect is enhanced.
Claims (8)
1. The utility model provides a guide arm bumper shock absorber of vibroflotation ware, is including being used for locating cavity card core (4) between vibroflotation head (1) and guide arm (2), and swing base point (3) of vibroflotation head (1) are located the axis of cavity card core (4), its characterized in that: at least one limiting plate (5) is arranged on the outer wall of the hollow clamping core (4), a sleeve (6) wrapping the limiting plate (5) is sleeved outside the hollow clamping core (4), a through hole corresponding to the inner cavity of the hollow clamping core (4) is arranged on a bottom plate connected with the vibration punch (1) on the sleeve (6), an annular groove (7) is formed between the top plate of the sleeve (6) and the hollow clamping core (4), an injection molding gap (8) is reserved between the top surface of the top plate of the sleeve (6) and the top surface of the hollow clamping core (4) which is directly connected with the guide rod (2), the bottom surface of the hollow clamping core (4) is positioned in the sleeve (6) and separated from the bottom plate of the sleeve (6), an elastomer (9) used for filling the inner space of the sleeve (6) is sleeved on the outer wall of the hollow clamping core (4),
a baffle (10) which is arranged in parallel with the limiting plates (5) is arranged on the inner wall of the sleeve (6), the baffle (10) is arranged between two adjacent limiting plates (5), an injection molding gap (8) is reserved between the baffle (10) and the hollow clamping core (4),
the elastic body (9) comprises a sealing area (11) and an exposed area (12), the sealing area (11) is filled in the sleeve (6), and the exposed area (12) is filled in the area, which is arranged between the sleeve (6) and the guide rod (2), of the hollow clamping core (4).
2. The guide rod damper of a vibroflotation device according to claim 1, wherein: the swinging base point (3) is positioned on the axis of the hollow clamping core (4) inside the sleeve (6).
3. The guide rod damper of a vibroflotation device according to claim 2, wherein: two limiting plates (5) perpendicular to the hollow clamping core (4) are arranged on the outer wall of the hollow clamping core (4), the swing base point (3) is located between the two limiting plates (5), and an injection molding gap (8) is reserved between the limiting plates (5) and the inner wall of the sleeve (6).
4. A guide rod shock absorber for a vibroflotation device according to claim 3, wherein: in the normal working state of the vibrating punch (1), the swinging base point (3) is positioned at the center position between the two adjacent limiting plates (5).
5. The guide rod damper of a vibroflotation device according to claim 1, wherein: the baffle (10) is provided with a region overlapped with the limiting plate (5) in the axial view angle of the hollow clamping core (4).
6. The guide rod damper of a vibroflotation device according to claim 1, wherein: the inner wall of the sleeve (6) is uniformly provided with ribs (15) which are parallel to the axis of the sleeve (6) around the axis of the sleeve (6), the limiting plate (5) radially extends outwards along the limiting plate (16), the limiting plate (16) is uniformly distributed with at least two limiting plates around the axis of the hollow clamping core (4), an arc-shaped rotating area (17) is formed between every two adjacent limiting plates (16), and each rotating area (17) is internally provided with one rib (15).
7. The guide rod damper of a vibroflotation device according to claim 1, wherein: the sealing area (11) is hollow cylindrical, the height of the sealing area (11) is 400-500 mm, the outer diameter of the sealing area (11) is 400-460 mm, the wall thickness of the sealing area (11) is 20-30 mm, the difference between the inner diameter and the outer diameter of the annular groove (7) is 20-30 mm, the thickness of the limiting plate (5) is 20-40 mm, and the inner cavity diameter of the hollow clamping core (4) is 80-120 mm.
8. The guide rod damper of a vibroflotation device according to claim 1, wherein: the exposed area (12) is in a hollow cylinder shape, and the outer diameter of the exposed area (12) is smaller than the outer diameter of the sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310740492.7A CN116695675B (en) | 2023-06-21 | 2023-06-21 | Guide rod shock absorber of vibroflotation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310740492.7A CN116695675B (en) | 2023-06-21 | 2023-06-21 | Guide rod shock absorber of vibroflotation device |
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| Publication Number | Publication Date |
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| CN116695675A CN116695675A (en) | 2023-09-05 |
| CN116695675B true CN116695675B (en) | 2024-04-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014105169U1 (en) * | 2014-10-28 | 2014-11-11 | Chung-Chuan LIN | Construction of shock-absorbing sleeves |
| CN205927236U (en) * | 2016-08-20 | 2017-02-08 | 浙江鸿峰硬质合金有限公司 | Drilling tool with slice tool bit |
| CN107448534A (en) * | 2017-08-28 | 2017-12-08 | 江阴市军炫智能装备有限公司 | Shock damper and its preparation technology |
| CN110030307A (en) * | 2019-03-05 | 2019-07-19 | 中国航发北京航空材料研究院 | A kind of Anti-pull-press high rigidity cylinder type damper |
| CN214328825U (en) * | 2020-12-08 | 2021-10-01 | 中国建筑土木建设有限公司 | Install subassembly of ramming on quartering hammer |
| CN216715082U (en) * | 2021-12-21 | 2022-06-10 | 江苏工邦振控科技有限公司 | Micro-vibration damper |
-
2023
- 2023-06-21 CN CN202310740492.7A patent/CN116695675B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014105169U1 (en) * | 2014-10-28 | 2014-11-11 | Chung-Chuan LIN | Construction of shock-absorbing sleeves |
| CN205927236U (en) * | 2016-08-20 | 2017-02-08 | 浙江鸿峰硬质合金有限公司 | Drilling tool with slice tool bit |
| CN107448534A (en) * | 2017-08-28 | 2017-12-08 | 江阴市军炫智能装备有限公司 | Shock damper and its preparation technology |
| CN110030307A (en) * | 2019-03-05 | 2019-07-19 | 中国航发北京航空材料研究院 | A kind of Anti-pull-press high rigidity cylinder type damper |
| CN214328825U (en) * | 2020-12-08 | 2021-10-01 | 中国建筑土木建设有限公司 | Install subassembly of ramming on quartering hammer |
| CN216715082U (en) * | 2021-12-21 | 2022-06-10 | 江苏工邦振控科技有限公司 | Micro-vibration damper |
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| Publication number | Publication date |
|---|---|
| CN116695675A (en) | 2023-09-05 |
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