A shock absorber

Abstract

The present invention provides a novel shock absorber, comprising a core shaft, a sleeve being provided on the outer side of the core shaft, a sealing component being provided between the core shaft and the sleeve, and a shock absorbing device being provided below the sealing component; the shock absorbing device comprises a first mounting part and a second mounting part, a first shock absorbing rubber block, a steel ball upper pressure plate and a first steel ball mounting plate being installed on the first mounting part in sequence, and steel balls being installed on the first steel ball mounting plate; a steel ball pad being provided below the first steel ball mounting plate, a second steel ball mounting plate being provided below the steel ball pad, and steel balls being installed on the second steel ball mounting plate; a steel ball lower pressure plate, a second shock absorbing rubber block and a shock absorbing device mounting plate being provided below the second steel ball mounting plate; the present invention adopts a combined assembly mode of shock absorbing rubber blocks and steel balls, has a stable shock absorbing effect, dilutes the role of rubber in the shock absorber, is suitable for vibrators of various powers, has strong versatility, simplifies the process and shortens the processing cycle.

Description

Technical Field

[0001] The invention relates to the technical field of vibro-impact equipment, and in particular to a novel shock absorber. Background Art

[0002] Vibrator is a special machine used in vibratory construction, mainly divided into hydraulic vibrator and electric vibrator. It can generate horizontal vibration force to vibrate the filler and surrounding soil, so as to improve the bearing capacity of the foundation, reduce the settlement, increase the stability of the foundation, and improve the seismic resistance. However, the vibration generated by the vibrator during the construction process will also affect the guide rod and the crane. If the vibration transmitted to the guide rod by the vibrator cannot be effectively eliminated, it will bring safety hazards to the crane and the construction. The greater the vibration of the guide rod, the greater the danger to the crane. At present, the field mainly uses shock absorbers to eliminate the vibration transmitted to the guide rod by the vibrator. It is an important component of the vibrator connection and the guide rod.

[0003] The shock absorber is a device between the vibrator and the guide rod in the vibro-impact construction, and its functions are: 1. Preventing the vibration of the vibrator from being transmitted upward; 2. Ensuring a firm connection between the vibrator and the guide rod; 3. Ensuring the smooth passage of cables and water pipes without damage during connection; Ensuring that cables and water pipes are not damaged during construction; 4. Ensuring that the pile does not deviate or tilt during construction; The shock absorber in the prior art is made of cast steel, which is machined and then injected with natural rubber; At present, the production process of the shock absorber is complicated, the cycle is long, and the shock absorption effect and service life are unstable; The shock absorption effect and service life depend entirely on the hardness and firmness of the injected natural rubber; Although the hardness of natural rubber determines the quality of the shock absorption effect, it also has an adverse effect on the adhesion of the rubber and the deflection of the pile body; Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0004] In order to overcome the defects existing in the above-mentioned prior art, the present invention provides a new shock absorber. The new shock absorber of the present invention is suitable for vibrators. The present invention adopts a combined assembly mode of shock-absorbing rubber blocks and steel balls. The shock absorption effect is good and stable, and the role of rubber in the shock absorber is weakened. Not only the overall shock absorption effect is good, but also the service life is long; the lateral vibration of the present invention is eliminated by steel balls, and the vibration generated by the vibrator regardless of the power can be eliminated. The shock-absorbing rubber blocks prevent the vibration generated by axial transmission. The present invention is suitable for various models of vibrators and has strong versatility; when the present invention is manufactured, the processes can be carried out simultaneously. While processing the accessories, the outsourced manufacturer can be notified to produce the shock-absorbing rubber blocks, which simplifies the process and shortens the processing cycle.

[0005] The present invention provides a novel shock absorber, comprising a core shaft, a sleeve is provided on the outer side of the core shaft, a sealing component is provided between the core shaft and the sleeve, and a shock absorbing device is provided below the sealing component; wherein the shock absorbing device comprises a first mounting portion and a second mounting portion, the first mounting portion is mounted on the outer side of the core shaft, and the second mounting portion is provided below the first mounting portion; a first shock absorbing rubber block is mounted on the first mounting portion, a steel ball upper pressure plate is provided below the first shock absorbing rubber block, a first steel ball mounting plate is provided below the steel ball upper pressure plate, steel ball mounting holes are evenly opened on the first steel ball mounting plate, and the steel ball mounting holes Steel balls are installed inside; a steel ball pad is provided below the first steel ball mounting plate, the steel ball pad is installed between the first mounting part and the second mounting part, a second steel ball mounting plate is provided below the steel ball pad, the second steel ball mounting plate is installed on the second mounting part, steel ball mounting holes are evenly opened on the second steel ball mounting plate, and steel balls are installed in the steel ball mounting holes; a steel ball pressing plate is provided below the second steel ball mounting plate, a second shock-absorbing rubber block is installed below the steel ball pressing plate, a shock-absorbing device mounting plate is provided below the second shock-absorbing rubber block, and the shock-absorbing device mounting plate is in contact with the bottom of the outer sleeve.

[0006] The first shock-absorbing rubber block and the second shock-absorbing rubber block are evenly provided with mounting holes, and anti-tilt columns are arranged in the mounting holes. The cooperation of the anti-tilt columns and the shock-absorbing rubber blocks can prevent the occurrence of unqualified pile making situations such as pile running and pile deviation; preferably, the first shock-absorbing rubber block and the second shock-absorbing rubber block have the same structure, and both can adopt the shock-absorbing rubber blocks of the prior art, and the present invention does not make specific limitations.

[0007] The first steel ball mounting plate is integrally formed with the first mounting portion, and the second steel ball mounting plate is integrally formed with the second mounting portion.

[0008] The first steel ball mounting plate, the steel ball pad plate and the second steel ball mounting plate are all provided with threaded holes, and the first steel ball mounting plate, the steel ball pad plate and the second steel ball mounting plate are connected by threaded connection, such as connection with screws or bolts.

[0009] The sealing component comprises a main sealing component arranged on the outer side of the core shaft, and a bottom sealing component is arranged between the lower part of the main sealing component and the first shock-absorbing rubber block.

[0010] The outer sleeve includes a cone cap and an outer shell, wherein the cone cap is arranged on the outside of the main seal, and the outer shell is arranged on the outside of the shock absorbing device; a gap is arranged between the cone cap and the outer shell, an outer seal is arranged in the gap part, an upper pressure cover is arranged below the outer seal, and the upper pressure cover is connected to the outer shell.

[0011] A bottom anti-twist plate is provided below the shock absorbing device mounting plate, and the bottom anti-twist plate is connected to the shell.

[0012] An anti-twist and shock-absorbing component is arranged between the bottom anti-twist plate and the core shaft, an anti-twist plate mounting plate is arranged at the bottom of the anti-twist and shock-absorbing component, and the anti-twist plate mounting plate is connected to the shell.

[0013] An inner sealing portion is provided above the bottom anti-twist plate in the gap between the second shock-absorbing rubber block and the core shaft.

[0014] The outer end of the cone cap is provided with a glue injection hole.

[0015] Arc grooves are formed on the outer sides of the first shock-absorbing rubber block and the second shock-absorbing rubber block.

[0016] Due to the adoption of the above technical scheme, compared with the prior art, the present invention provides a new shock absorber, which is suitable for vibrators. The present invention adopts a combined assembly mode of shock-absorbing rubber blocks and steel balls, which has good and stable shock-absorbing effect, and dilutes the role of rubber in the shock absorber. Not only is the overall shock-absorbing effect good, but also the service life is long; the lateral vibration of the present invention is eliminated by steel balls, and the vibration generated by the vibrator regardless of the power can be eliminated. The shock-absorbing rubber blocks prevent the vibration generated by axial transmission, and are suitable for vibrators of various powers, with strong versatility; when the present invention is manufactured, the processes can be carried out simultaneously, and while processing the accessories, the outsourced manufacturer can be notified to manufacture the shock-absorbing rubber blocks, which simplifies the process and shortens the processing cycle; further, the new shock absorber of the present invention has strict seals at the upper and lower ends, and water and sand will not enter during the construction process; in addition, the new shock absorber of the present invention prevents the occurrence of unqualified pile making situations such as running piles and deviating piles through the cooperation of shock-absorbing rubber blocks and anti-tilting columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0018] Figure 2 is a schematic diagram of the internal structure of Embodiment 2 of the present invention;

[0019] Figure 3 is a schematic diagram of the external structure of Embodiment 2 of the present invention;

[0020] Figure 4 is a structural schematic diagram of the first mounting portion of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the first mounting portion and the first steel ball mounting plate being integrally formed in the present invention;

[0022] Figure 6 is a schematic structural diagram of the second mounting portion of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the second mounting portion and the second steel ball mounting plate being integrally formed in the present invention;

[0024] Figure 8 is a schematic diagram of the assembly structure of the first mounting portion of the present invention;

[0025] Fig. 9 is a schematic diagram of the assembly structure of the second mounting portion of the present invention;

[0026] Fig.10 is a schematic diagram of the assembly structure of the first mounting portion and the second mounting portion of the present invention;

[0027] Fig.11 It is a structural schematic diagram of the main seal of the present invention;

[0028] Fig.12 It is a schematic structural diagram of the anti-torsion and shock absorbing component of the present invention;

[0029] Fig.13 It is a schematic diagram of the structure of the installation and matching of the anti-torsion and shock absorbing components of the present invention;

[0030] Reference numerals:

[0031] 1. Mandrel 2. Jacket 3. Sealing component 4. Shock absorber

[0032] 5. First mounting part 6. Second mounting part 7. First shock-absorbing rubber block 8. Steel ball upper pressure plate

[0033] 9. First steel ball mounting plate 10. Steel ball mounting hole 11. Steel ball 12. Steel ball pad

[0034] 13. Second steel ball mounting plate 14. Steel ball lower pressure plate 15. Second shock-absorbing rubber block

[0035] 16. Shock-absorbing device mounting plate 17. Arc groove 18. Anti-tilt column

[0036] 19, first conical mounting portion 20, first steel ball mounting portion 21, first pad mounting portion

[0037] 22, second pad mounting portion 23, second steel ball mounting portion 24, second conical mounting portion

[0038] 25. Main seal 26. Bottom seal 27. First part 28. Second part

[0039] 29. Third part 30. Bottom anti-twist plate 31. Anti-twist shock absorbing component

[0040] 32. Anti-twist plate mounting plate 33. Arc mounting portion 34. Circular shock absorbing portion

[0041] 35, inner sealing part 36, cone cap 37, outer shell 38, outer sealing part

[0042] 39. Upper pressure cover 40. Glue injection hole 41. Sealant 42. Loading and unloading hole. DETAILED DESCRIPTION

[0043] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be noted that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0044] like Figure 1 , Figures 4 to 13 As shown, embodiment 1 of the present invention:

[0045] The present invention provides a novel shock absorber, comprising a core shaft 1, a sleeve 2 is provided on the outer side of the core shaft 1, a sealing component 3 is provided between the core shaft 1 and the sleeve 2, and the sealing component 3 is provided to prevent water, sand, etc. from entering the core shaft 1 during construction and affecting the normal use of the equipment; a shock absorbing device 4 is provided below the sealing component 3, and the shock absorbing device 4 is used to alleviate the bidirectional vibration generated during the construction process; wherein, the shock absorbing device comprises a first mounting portion 5 and a second mounting portion 6, and the inner diameter shape of the first mounting portion 5 and the second mounting portion 6 is consistent with the matching position of the core shaft 1, and the present invention does not make specific limitations here; the first mounting portion 5 is installed on the outer side of the core shaft 1, A second mounting portion 6 is provided below the first mounting portion 5, and the second mounting portion 6 is installed on the outer side of the core shaft 1; a first shock-absorbing rubber block 7 is installed on the first mounting portion 5, and the first shock-absorbing rubber block 7 is used to eliminate vibration in the vertical direction; a steel ball upper pressure plate 8 is provided below the first shock-absorbing rubber block 7, and a first steel ball mounting plate 9 is provided below the steel ball upper pressure plate 8, and steel ball mounting holes 10 are evenly opened on the first steel ball mounting plate 9, and steel balls 11 are installed in the steel ball mounting holes 10; a steel ball pad 12 is provided below the first steel ball mounting plate 9, and the steel ball pad 12 is installed between the first mounting portion 5 and the second mounting portion 6, and a steel ball pad 12 is provided below the steel ball pad 12 There is a second steel ball mounting plate 13, on which steel ball mounting holes 10 are evenly opened, and steel balls 11 are installed in the steel ball mounting holes 10; a steel ball lower pressure plate 14 is provided below the second steel ball mounting plate 13, and the cooperation of the steel ball upper pressure plate 8, the steel balls 11, the steel ball pad 12, and the steel ball lower pressure plate 14 is used to eliminate lateral vibration; a second shock-absorbing rubber block 15 is installed below the steel ball lower pressure plate 14, and the second shock-absorbing rubber block 15 is used to eliminate vertical vibration, and the cooperation of the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 is used to eliminate the vertical vibration of the vibrator in both directions; a shock-absorbing device is provided below the second shock-absorbing rubber block 15 Plate 16, the bottom of the shock absorbing device mounting plate 16 contacts with the bottom of the outer sleeve 2, and the shock absorbing device 4 is fixed in the outer sleeve 2 by using the pressure at the bottom of the outer sleeve 2 and the pressure between the sealing component 3; in order to improve the stability of the installation of the shock absorbing device 4, the bottom of the second mounting portion 6 is fixed to the core shaft 1 by screws to prevent the shock absorbing device 4 from moving in the longitudinal direction; preferably, an arc groove 17 is provided on the outer side of the first shock absorbing rubber block 7 and the second shock absorbing rubber block 15 to facilitate the installation of the first shock absorbing rubber block 7 and the second shock absorbing rubber block 15 and prevent the generation of large force during the installation process, which may prevent the first shock absorbing rubber block 7 and the second shock absorbing rubber block 15 from being fixed well.

[0046] Preferably, mounting holes are evenly formed on the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15, and anti-tilt columns 18 are provided in the mounting holes. The anti-tilt columns 18 can prevent the lifting angle from being too large during lifting, resulting in the phenomenon of pile deviation.

[0047] Preferably, the first mounting portion 5 includes a first conical mounting portion 19, the first conical mounting portion 19 is used to mount the first shock-absorbing rubber block 7 and the steel ball upper pressure plate 8, and the first shock-absorbing rubber block 7 is partially mounted on the first conical mounting portion 19; the lower part of the first conical mounting portion 19 is provided with a first steel ball mounting portion 20, and the first steel ball mounting portion 20 is used to mount the first steel ball mounting plate 9. Preferably, in order to achieve a better shock-absorbing effect and increase the service life of the shock-absorbing device 4, the first steel ball mounting plate 9 is fixedly connected to the first steel ball mounting portion 20, and an interference fit, welding or welding connection method can be adopted, or the first steel ball mounting plate 9 and the first steel ball mounting The first steel ball mounting portion 20 is integrally formed; preferably, the height of the first steel ball mounting portion 9 is equal to the height of the first steel ball mounting plate 20; a first pad mounting portion 21 is provided below the first steel ball mounting portion 20, preferably, the diameter of the first pad mounting portion 21 is smaller than the diameter of the first steel ball mounting portion 20, the first pad mounting portion 21 is used to mount the steel ball pad 12, and part of the steel ball pad 12 is mounted on the first mounting portion 21; specifically, the second mounting portion 6 includes a second pad mounting portion 22, the second pad mounting portion 22 is used to mount the steel ball pad 12, a part of the steel ball pad 12 is mounted on the first pad mounting portion 21, and the other part is mounted on the second pad mounting portion 22; preferably, the diameter of the second pad mounting portion 22 is equal to the diameter of the first pad mounting portion 21, and the height of the first pad mounting portion 21 is equal to the height of the second pad mounting portion 22, and the total height of the first pad mounting portion 21 and the second pad mounting portion 22 is equal to the height of the steel ball pad 12, and more preferably, the heights of the first pad mounting portion 21 and the second pad mounting portion 22 are both half of the height of the steel ball pad 12; a second steel ball mounting portion 23 is provided at the lower part of the second pad mounting portion 22, and preferably, the diameter of the second steel ball mounting portion 23 is greater than the diameter of the second pad mounting portion 22; the second steel ball mounting portion 23 is used to mount the second steel ball Mounting plate 13, preferably, in order to achieve better shock absorption effect and improve the service life of the shock absorption device, the second steel ball mounting plate 13 is fixedly connected to the second steel ball mounting portion 23, and an interference fit or welding connection method can be adopted, or the second steel ball mounting plate 13 and the second steel ball mounting portion 23 are integrally formed; preferably, the height of the second steel ball mounting portion 23 is equal to the height of the second steel ball mounting plate 13; a second conical mounting portion 24 is provided below the second steel ball mounting portion 23, and the second conical mounting portion 24 is used to install the second shock absorbing rubber block 15 and the steel ball lower pressure plate 14, and the second shock absorbing rubber block 15 is partially installed on the second conical mounting portion 24;More preferably, the first mounting portion 5 and the second mounting portion 6 are connected, because the first steel ball mounting plate 9 is fixedly connected to the first mounting portion 5, and the second steel ball mounting plate 13 is fixedly connected to the second mounting portion 6, therefore, the first steel ball mounting plate 9 and the second steel ball mounting plate 13 are connected. Preferably, the first steel ball mounting plate 9, the steel ball pad plate 12, and the second steel ball mounting plate 13 are all provided with threaded holes, and the threaded holes are provided between the steel ball mounting holes 10, and the specific number is not limited; the first steel ball mounting plate 9, the steel ball pad plate 12, and the second steel ball mounting plate 13 are connected by threaded connection; further, the bottom of the second conical mounting portion 24 of the second mounting portion 6 is fixed to the core shaft 1 by screws, so as to further prevent the shock absorbing device from 4 moves in the longitudinal direction, which improves the stability of the shock absorbing device 4; in order to improve the connection strength of the first steel ball mounting plate 9, the steel ball pad 12, and the second steel ball mounting plate 13, bolt connection is preferred. Specifically, a countersunk threaded hole (not shown in the figure) is provided at the bottom of the second steel ball mounting plate 13 to prevent the installed bolts from interfering with the steel ball lower pressure plate 14 and the second steel ball mounting plate 13; similarly, a nut mounting groove (not shown in the figure) is provided on the upper part of the first steel ball mounting plate 9, and the nut is installed in the nut mounting groove to prevent the first steel ball mounting plate 9 from interfering with the steel ball upper pressure plate 8; the first steel ball mounting plate 9, the steel ball pad 12, and the second steel ball mounting plate 13 are connected by the cooperation of bolts and nuts. ;

[0048] Preferably, the sealing component 3 includes a main seal 25 arranged on the outside of the core shaft 1, and a bottom seal 26 is provided between the lower part of the main seal 25 and the first shock-absorbing rubber block 7. The bottom seal 26 can be an ordinary seal in the prior art, and the present invention does not make a specific limitation. The main seal 25 adopts a cast rubber part. Specifically, the main seal 25 includes a first part 27, a second part 28, and a third part 29 arranged in sequence; the inner diameter of the first part 27 is smaller than the inner diameter of the second part 28, and the outer diameter of the first part 27 is smaller than the outer diameter of the second part 28; an inner shoulder and an outer shoulder are formed between the first part 27 and the second part 28; the inner diameter of the second part 28 is smaller than the inner diameter of the third part 29, the outer diameter of the second part 28 is equal to the outer diameter of the third part 29, and an inner shoulder is formed between the second part 28 and the third part 29; however, the main seal 25 of the present invention is not limited to the above-mentioned shape, and a specific selection is made according to the specific situation, and the present invention does not make a specific limitation.

[0049] Preferably, a bottom anti-twist plate 30 is provided below the shock absorbing device mounting plate 16, and the bottom anti-twist plate 30 is connected to the outer sleeve 2 by screws; the bottom anti-twist plate 30 is provided to prevent the shock absorbing device 4 from rotating when the equipment is working; more preferably, an anti-twist and shock absorbing component 31 is provided between the bottom anti-twist plate 30 and the core shaft 1, and an anti-twist plate mounting plate 32 is provided at the bottom of the anti-twist and shock absorbing component 31, and the anti-twist plate mounting plate 32 is connected to the outer sleeve 2 by screws; the anti-twist and shock absorbing component 31 is provided between the bottom anti-twist plate 30 and the core shaft 1 When the machine is working, it can prevent rotation and reduce shock; the anti-torsion shock absorbing component 31 is cast with rubber. Specifically, the anti-torsion shock absorbing component 31 includes an arc mounting portion 33, the inner arc of the arc mounting portion 33 is installed in contact with the core shaft 1, and a circular shock absorbing portion 34 is symmetrically provided on the arc mounting portion 33, and the outer arc of the circular shock absorbing portion 34 and the arc mounting portion 33 are installed in contact with the bottom anti-torsion plate 30; preferably, the number of anti-torsion shock absorbing components 31 provided between the bottom anti-torsion plate 30 and the core shaft 1 is 4.

[0050] Preferably, an inner sealing portion 35 is provided above the bottom anti-twist plate 30 in the gap between the second shock-absorbing rubber block 15 and the core shaft 1. The inner sealing portion 35 is a rubber-cast seal. Preferably, the inner sealing portion 35 is in a "U" shape.

[0051] The working principle of this embodiment is as follows: before construction, the core shaft 1 of the shock absorber is connected to the guide rod, and the bottom of the outer sleeve 2 is connected to the vibrator, and they are firmly connected by bolts; after the connection is completed, the lifting is carried out, and during the lifting, the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 are compressed and deformed, and the anti-tilt column 18 will reduce the lifting angle; after the lifting is completed, the power is turned on to work, and since the steel ball 11 is a hard contact of point and line, it plays a role in eliminating lateral vibration; during operation, there will be some vertical fluctuations due to changes in geological conditions, and the vertical vibrations caused by the vertical fluctuations are eliminated by the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15. The material of the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 is natural reinforced rubber, which is a simple independent rubber block formed by die-casting and vulcanization.

[0052] like Figure 2 , Figure 3 , Figures 4 to 13 As shown, embodiment 2 of the present invention:

[0053] The difference between this embodiment and embodiment 1 is that the outer sleeve 2 includes a cone cap 36 and an outer shell 37. The cone cap 36 is arranged on the outer side of the main seal 25 and adopts a wear-resistant cone cap. Preferably, a wear-resistant layer is welded on the outer side of the wear-resistant cone cap 36; the cone cap 36 is not only wear-resistant, but also made into a cone shape so that the stone can fall smoothly without hindering the falling of the stone; the outer shell 37 is arranged on the outer side of the shock absorbing device 4 to protect the shock absorbing device 4; a gap is provided between the cone cap 36 and the outer shell 37, and the gap part is provided with The outer seal 38 is a rubber casting. Preferably, the outer seal 38 is in a "U" shape. An upper pressure cover 39 is provided below the outer seal 38, and the outer seal 38 contacts the upper end surface of the upper pressure cover 39. The upper pressure cover 39 is connected to the outer shell 37 by screws, and the lower end surface of the upper pressure cover 39 contacts the upper end surface of the first shock-absorbing rubber block 7. In this embodiment, the vibration device 4 uses the pressure at the bottom of the outer shell 37 and the pressure between the upper pressure cover 39 to fix the vibration device 4 in the outer shell 37.

[0054] Preferably, a glue injection hole 40 is provided at the outer end of the conical cap 36, and a sealant 41 is injected between the core shaft 1 and the main seal 25 through the glue injection hole 40 to further improve the sealing effect; preferably, a glue injection hole 40 is opened on the outer sleeve of the sealing component 3 in Example 1, and a sealant 41 is injected between the core shaft 1 and the main seal 25 through the glue injection hole 40 to further improve the sealing effect.

[0055] Preferably, a loading and unloading hole 42 is also provided at the outer end of the cone cap 36, and the loading and unloading hole 42 is used to realize the installation and disassembly of the shock absorber; in Example 1, preferably, the outer sleeve of the outer side of the sealing component 3 is conical to facilitate the falling of stones; and a loading and unloading hole 42 is provided on the outer sleeve of the outer side of the sealing component 3 to facilitate the installation and disassembly of the shock absorber.

[0056] The working principle of this embodiment is as follows: before construction, the core shaft 1 of the shock absorber is connected to the guide rod, and the bottom of the shell 37 is connected to the vibrator, and they are firmly connected by bolts; after the connection is completed, the lifting is carried out, and during the lifting, the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 are compressed and deformed, and the anti-tilt column 18 will reduce the lifting angle; after the lifting is completed, the power is turned on to work, and since the steel ball 11 is a hard contact between points and lines, it plays a role in eliminating lateral vibration; during operation, there will be some vertical fluctuations due to changes in geological conditions, and the vertical vibrations caused by the vertical fluctuations are eliminated by the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15. The material of the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 is natural reinforced rubber, which is a simple independent rubber block formed by die-casting and vulcanization.

[0057] When the present invention encounters hard ground during construction, the existing shock absorber is pure rubber for shock absorption and anti-twist. Due to the uneven hardness of the colloid, it will cause the pile to deviate and tilt. The first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 in the new shock absorber of the present invention cooperate with the anti-tilt column 18 to prevent the occurrence of deviating, running, tilting and the like. After the construction is completed, the vibrator and the shock absorber are laid down together. At this time, the first shock-absorbing rubber block 7 and the second shock-absorbing rubber block 15 cooperate with the anti-tilt column 18 to also reduce the laying angle and protect the shock absorbing device 4 and the sealing component 3. The vibratory construction method is divided into compaction and replacement. Regardless of the construction method, the working environment of the shock absorber is very bad. In poor condition, it is necessary to prevent water, mud, sand and other impurities from entering. The new shock absorber of the present invention is provided with four seals, involving the main seal 25, the outer seal 38, the bottom seal 26, and the inner seal part 35. Among them, the main seal 25, the outer seal 38, and the bottom seal 26 are all used to prevent water, sand, mud and the like from entering from the top; the inner seal part 35 is used when the connection between the vibrator and the shock absorber is not reliable, and water, sand, mud and other debris enter the bottom cavity of the outer sleeve 2. The inner seal part 35 will prevent water, sand, mud and other debris from flowing back; especially in the construction of vibratory replacement piles, block objects such as crushed stones and stones are usually filled in.

[0058] In order to prevent the main seal 25 and the outer seal 38 from being damaged, the new shock absorber of the present invention can perform special treatment on the outer jacket 2 of the main seal 25 and the outer seal 38 to improve its wear resistance; or a wear-resistant conical jacket can be arranged on the outer side of the main seal 25 and the outer seal 38. The wear-resistant conical jacket is forged and heat-treated, and a wear-resistant layer is welded on the periphery to play a role in wear resistance and protecting the main seal from damage.

[0059] In summary, due to the adoption of the above technical scheme, compared with the prior art, the present invention solves the shortcomings of the shock absorber in the prior art: the unstable shock absorption effect, the contradictory relationship between the shock absorption effect and the life, and the shock absorbers of various power sizes in the prior art are not universal; in view of these shortcomings, the new shock absorber has changed the original idea of ​​relying entirely on rubber shock absorption, and divides the vibration produced by the vibrator into two: the lateral vibration of the vibrator is eliminated by steel balls, and the vertical vibration is eliminated by formed shock-absorbing rubber blocks; since the new shock absorber is a combined assembly mode, the shock absorption effect is both good and stable; the shock absorber in the prior art has a poor shock absorption effect when the rubber hardness is high because the injected natural rubber is integral, but the rubber is firmly bonded and not biased; when the rubber hardness is low, the shock absorption effect is good, but the rubber is not firmly bonded and is easy to debond and crack. The shock absorber of the present invention adopts a combined assembly form, which dilutes the role of rubber in the shock absorber. Not only does it have a good overall shock absorption effect, but its service life is about 5 times longer than the existing ones. The shock absorber in the prior art is injected with rubber as a whole, with a fixed rubber hardness, a fixed shock absorption effect, and fixed supporting equipment. The shock absorber of the present invention is a combined assembly type, and the lateral vibration is eliminated by steel balls. The vibration generated by the vibrator can be eliminated regardless of the power. The shock-absorbing rubber block only serves to prevent the vibration generated by the axial transmission. In addition, as a preferred solution, the present invention also solves the following technical problems:

[0060] 1. The rubber is easily torn during the shock absorption lifting, resulting in water and sand ingress; the existing shock absorber has a relatively large lifting angle in consideration of the shock absorption effect, so the rubber is easily torn during lifting; however, the present invention sets an anti-tilt column in the shock absorption rubber block. Due to the existence of the anti-tilt column, the shock absorption effect is not affected, and the lifting angle is reduced. In addition, the upper and lower ends of the shock absorber of the present invention are strictly sealed, and four seals are set.

[0061] It ensures that no water or sand will enter during the construction process.

[0062] 2. The production process of shock absorbers in the prior art is complicated and has a long cycle. The production process of shock absorbers in the prior art is casting steel parts, processing, and injecting rubber. The processes cannot be carried out at the same time. Due to the pressure from the environment, the rubber injection process will become more and more difficult. The processes of the shock absorbers of the present invention can be carried out at the same time. While processing the accessories, the outsourced manufacturers can be notified to make the shock-absorbing rubber blocks. In this way, the process is simplified and the cycle is shortened.

[0063] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments; within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of the present invention will not be described separately.

[0065] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A shock absorber, comprising a core shaft, wherein the outer side of the core shaft is provided with a jacket, It is characterized in that A sealing component is provided between the core shaft and the outer sleeve, and a shock-absorbing device is provided below the sealing component; wherein the shock-absorbing device includes a first mounting portion and a second mounting portion, the first mounting portion is installed on the outer side of the core shaft, and a second mounting portion is provided below the first mounting portion; a first shock-absorbing rubber block is installed on the first mounting portion, a steel ball upper pressure plate is provided below the first shock-absorbing rubber block, a first steel ball mounting plate is provided below the steel ball upper pressure plate, and steel ball mounting holes are evenly opened on the first steel ball mounting plate, and steel balls are installed in the steel ball mounting holes; a steel ball pad is provided below the first steel ball mounting plate, the steel ball pad is installed between the first mounting portion and the second mounting portion, a second steel ball mounting plate is provided below the steel ball pad, and steel ball mounting holes are evenly opened on the second steel ball mounting plate, and steel balls are installed in the steel ball mounting holes; a steel ball lower pressure plate is provided below the second steel ball mounting plate, a second shock-absorbing rubber block is installed below the steel ball lower pressure plate, a shock-absorbing device mounting plate is provided below the second shock-absorbing rubber block, and the shock-absorbing device mounting plate contacts the bottom of the outer sleeve; The first shock-absorbing rubber block and the second shock-absorbing rubber block are evenly provided with mounting holes, and anti-tilt columns are provided in the mounting holes; The first steel ball mounting plate is integrally formed with the first mounting portion, and the second steel ball mounting plate is integrally formed with the second mounting portion; The first steel ball mounting plate, the steel ball pad plate, and the second steel ball mounting plate are all provided with threaded holes, and the first steel ball mounting plate, the steel ball pad plate, and the second steel ball mounting plate are connected by threaded connection; The sealing component comprises a main sealing member arranged outside the core shaft, and a bottom sealing member is arranged between the lower part of the main sealing member and the first shock-absorbing rubber block; The outer sleeve comprises a cone cap and an outer shell, a gap is provided between the cone cap and the outer shell, an outer seal is provided at the gap, an upper pressure cover is provided below the outer seal, and the upper pressure cover is connected to the outer shell; A bottom anti-twist plate is provided below the shock absorbing device mounting plate, and the bottom anti-twist plate is connected to the housing; An anti-torsion damping component is provided between the bottom anti-torsion plate and the core shaft, an anti-torsion plate mounting plate is provided at the bottom of the anti-torsion damping component, and the anti-torsion plate mounting plate is connected to the housing; An inner sealing portion is provided above the bottom anti-twist plate in the gap between the second shock-absorbing rubber block and the core shaft; Arc grooves are formed on the outer sides of the first shock-absorbing rubber block and the second shock-absorbing rubber block.

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