阅读说明：本技术 一种动力头用的复合减震器 (Compound bumper shock absorber that unit head was used ) 是由 陆长春 边永强 郭继华 毛伟鹏 翁永健 于 2020-01-19 设计创作，主要内容包括：本发明公开了一种动力头用的复合减震器,属于减震装置技术领域,支撑座内固定套接有连接套,连接套设有套孔,套孔内滑动连接有驱动套,驱动套的表面固定套接有限位板,限位板的上端固定连接有安装板,安装板的上端固定连接有活塞杆,活塞杆的外侧套接有减震弹簧,活塞杆的上端滑动套接有缓冲器,缓冲器的上端固定连接有支撑座,支撑座的下端滑动套接有减震杆,它设置的减震弹簧、上缓冲弹簧和下缓冲弹簧,具有快速调节弹力强度的功能,可以根据实际需要快速的进行减震强度的调节,提高了减震器的使用便利性,并且设置的减震杆在损坏时可以进行单独拆卸更换,提高了维修效率,降低了维修成本。(The invention discloses a composite damper for a power head, which belongs to the technical field of damping devices, wherein a connecting sleeve is fixedly sleeved in a supporting seat, the connecting sleeve is provided with a sleeve hole, a driving sleeve is slidably connected in the sleeve hole, the surface of the driving sleeve is fixedly sleeved with a limiting plate, the upper end of the limiting plate is fixedly connected with a mounting plate, the upper end of the mounting plate is fixedly connected with a piston rod, the outer side of the piston rod is sleeved with a damping spring, the upper end of the piston rod is slidably sleeved with a damper, the upper end of the damper is fixedly connected with the supporting seat, the lower end of the supporting seat is slidably sleeved with a damping rod, the damping spring, the upper damping spring and the lower damping spring are arranged, the damping spring, the upper damping spring and the lower damping spring have the function of quickly adjusting the elastic strength, the damping strength can be quickly adjusted, the maintenance efficiency is improved, and the maintenance cost is reduced.)

1. The utility model provides a compound bumper shock absorber that unit head was used, includes supporting seat (1), its characterized in that: the connecting sleeve (2) is fixedly sleeved in the supporting seat (1), the connecting sleeve (2) is provided with a sleeve hole (21), the driving sleeve (3) is connected in the sleeve hole (21) in a sliding manner, the limiting plate (4) is sleeved on the surface of the driving sleeve (3), the mounting plate (55) is fixedly connected to the upper end of the limiting plate (4), the piston rod (51) is fixedly connected to the upper end of the mounting plate (55), the damping spring (53) is sleeved on the outer side of the piston rod (51), the buffer (5) is sleeved on the upper end of the piston rod (51) in a sliding manner, the supporting seat (1) is fixedly connected to the upper end of the buffer (5), the damping rod (6) is sleeved on the lower end of the supporting seat (1) in a sliding manner, the upper buffering spring (61) and the lower buffering spring (62) are sleeved on the outer side of the damping rod (6), and the upper limiting, the lower end of the upper limiting block (64) is in contact connection with an upper locating sleeve (63), the upper end of the lower buffer spring (62) is in contact connection with a lower limiting block (66), and the upper end of the lower limiting block (66) is in contact connection with a lower locating sleeve (65).

2. The compound damper for a power head as claimed in claim 1, wherein: symmetrical guide grooves (22) are formed in the inner wall of the sleeve hole (21), guide blocks (31) are connected in the guide grooves (22) in a sliding mode, the guide blocks (31) are square in shape, and driving sleeves (3) are fixedly connected to the surfaces of the guide blocks (31).

3. The compound damper for a power head as claimed in claim 1, wherein: the upper end contact of damping spring (53) is connected with abrasionproof piece (52), the upper end fixedly connected with buffer (5) of abrasionproof piece (52), the lower extreme contact of damping spring (53) is connected with adjusting collar (54), adjusting collar (54) has piston rod (51) through threaded connection.

4. The compound damper for a power head as claimed in claim 1, wherein: the upper end of the shock absorption rod (6) is sleeved with an upper compression spring (7), the lower end of the shock absorption rod (6) is sleeved with a lower compression spring (8), and the upper end of the upper compression spring (7) and the lower end of the lower compression spring (8) are in contact connection with nuts.

5. The compound damper for a power head as claimed in claim 1, wherein: the lower end of the supporting seat (1) is provided with lower grooves (12), the lower grooves (12) are distributed in an annular and equidistant mode, and the lower end of each lower groove (12) is connected with an upper buffer spring (61) in a contact mode.

6. The compound damper for a power head as claimed in claim 1, wherein: the upper end of the limiting plate (4) is provided with annular upper clamping grooves (41) which are distributed at equal intervals, the upper clamping grooves (41) and the lower clamping grooves (12) are concentric and coaxial, and the upper end of the upper clamping grooves (41) is connected with a lower buffer spring (62) in a contact mode.

7. The compound damper for a power head as claimed in claim 1, wherein: the upper end of the supporting seat (1) is provided with an upper groove (11) which is distributed in an annular and equidistant mode, and an upper compression spring (7) is in contact connection with the inside of the upper groove (11).

8. The compound damper for a power head as claimed in claim 1, wherein: the lower end of the limiting plate (4) is provided with lower clamping grooves (42) which are distributed at equal intervals, and the lower ends of the lower clamping grooves (42) are in contact connection with lower compression springs (8).

Technical Field

The invention relates to the technical field of damping devices, in particular to a composite damper for a power head.

Background

The shock absorber is a device for buffering and releasing force of the power head and the drill rod, and can prevent the vibration force generated when the drill rod meets a hard object from influencing other parts of the machine.

At present, along with the development of science and technology, the kind of bumper shock absorber is also more and more, including the compound bumper shock absorber that a unit head was used wherein, but the compound bumper shock absorber that current unit head was used, mostly do not possess the function of adjusting damping intensity, damping spring probably takes place the deformation of certain degree after long-time the use, and then influence the damping intensity of bumper shock absorber, and the shock attenuation pole that the compound bumper shock absorber that current unit head was used set up when damaging, need carry out complicated dismantlement and just can change, very consume time and manpower, and then increased cost of maintenance.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a composite damper for a power head, which is provided with a damping spring, an upper damping spring and a lower damping spring, has the function of quickly adjusting the elastic strength, can quickly adjust the damping strength according to actual needs, improves the use convenience of the damper, can be independently disassembled and replaced when a damping rod is damaged, improves the maintenance efficiency and reduces the maintenance cost.

In order to solve the above problems, the present invention adopts the following technical solutions.

A composite damper for a power head comprises a supporting seat, wherein a connecting sleeve is fixedly sleeved in the supporting seat and provided with a sleeve hole, a driving sleeve is slidably connected in the sleeve hole, a limiting plate is fixedly sleeved on the surface of the driving sleeve, a mounting plate is fixedly connected to the upper end of the limiting plate, a piston rod is fixedly connected to the upper end of the mounting plate, a damping spring is sleeved on the outer side of the piston rod, a buffer is sleeved on the upper end of the piston rod in a sliding manner, a supporting seat is fixedly connected to the upper end of the buffer, a damping rod is sleeved on the lower end of the supporting seat in a sliding manner, an upper damping spring and a lower damping spring are sleeved on the outer side of the damping rod, an upper limiting block is connected to the lower end of the upper damping spring in a contact manner, an upper locating sleeve is connected to the lower end of, the upper end contact of lower spacing piece is connected with down the position sleeve, and damping spring, last buffer spring and lower buffer spring that it set up have the function of quick adjustment elasticity intensity, can be according to the quick regulation that carries out damping intensity of actual need, have improved the convenience in use of bumper shock absorber to the shock attenuation pole that sets up can dismantle alone when damaging and change, has improved maintenance efficiency, has reduced cost of maintenance.

Furthermore, symmetrical guide grooves are formed in the inner wall of the sleeve hole, guide blocks are connected in the guide grooves in a sliding mode, the guide blocks are square, the surface of each guide block is fixedly connected with a driving sleeve, the guide blocks can be prevented from rotating in the sleeve hole, and the connection stability of the shock absorber is improved.

Furthermore, damping spring's upper end contact is connected with the abrasionproof piece, the upper end fixedly connected with buffer of abrasionproof piece, damping spring's lower extreme contact is connected with the adjusting collar, the adjusting collar has the piston rod through threaded connection, and the adjusting collar that sets up has the function of reciprocating adjustment damping spring elasticity intensity, has improved the convenience in use of shock absorber.

Furthermore, a compression spring is sleeved at the upper end of the shock absorption rod, a lower compression spring is sleeved at the lower end of the shock absorption rod, the upper end of the upper compression spring and the lower end of the lower compression spring are in contact connection with a nut, the upper compression spring and the lower compression spring are arranged to enable the nut to have a shockproof function, the nut can be prevented from rotating due to vibration force, and the mounting firmness of the shock absorption rod is improved.

Furthermore, the lower extreme of supporting seat is opened there is the low groove, the low groove is annular equidistance and distributes, the lower extreme contact of low groove is connected with buffer spring, and the low groove that sets up can avoid last buffer spring to take place to squint and cause distortion when last buffer spring receives the extrusion, has prolonged buffer spring's life.

Furthermore, the upper end of limiting plate is opened the last draw-in groove that has annular equidistance to distribute, it is concentric coaxial with the low groove to go up the draw-in groove, the upper end contact of going up the draw-in groove is connected with buffer spring down, and the last draw-in groove that sets up can avoid buffer spring to take place the skew to cause distortion down when buffer spring receives the extrusion down, has prolonged buffer spring's life down.

Furthermore, the upper end of supporting seat is equipped with the upper groove that annular equidistance distributes, the contact is connected with last pressure spring in the upper groove, and the upper groove that sets up is used for preventing to go up pressure spring and takes place the skew when receiving the extrusion, prevents to go up pressure spring and produces distortion.

Further, the lower draw-in groove that has the equidistance and distributes is opened to the lower extreme of limiting plate, the lower extreme contact of draw-in groove is connected with down pressure spring down, and the lower draw-in groove that sets up is used for preventing down pressure spring and takes place the skew when receiving the extrusion, prevents that pressure spring produces the distortion down.

Compared with the prior art, the invention has the advantages that:

(1) damping spring, last buffer spring and lower buffer spring that this scheme set up have quick adjustment elasticity intensity's function, can be according to the quick regulation that carries out damping intensity of actual need, improved the convenience in use of bumper shock absorber to the shock attenuation pole that sets up can dismantle alone when damaging and change, has improved maintenance efficiency, has reduced cost of maintenance.

(2) The inner wall of trepanning is opened has the guide way of symmetry, and sliding connection has the guide block in the guide way, and the shape of guide block is the square shape, and the fixed surface of guide block is connected with the drive cover, and the guide block of setting can avoid the drive cover to take place rotatoryly in the trepanning, has improved the connection stability of bumper shock absorber.

(3) Damping spring's upper end contact is connected with the abrasionproof piece, and the upper end fixedly connected with buffer of abrasionproof piece, damping spring's lower extreme contact is connected with the adjusting collar, and the adjusting collar has the piston rod through threaded connection, and the adjusting collar that sets up has the function of reciprocating adjustment damping spring elasticity intensity, has improved the convenience in use of shock absorber.

(4) The upper end of shock-absorbing rod has cup jointed pressure spring, and the lower extreme of shock-absorbing rod has cup jointed down pressure spring, and the upper end of going up pressure spring and the lower extreme contact of lower pressure spring are connected with the nut, and last pressure spring that sets up makes the nut have jar-proof function with lower pressure spring, can avoid the nut to take place to rotate because of the vibrations power, has improved the installation fastness of shock-absorbing rod.

(5) The lower extreme of supporting seat is opened there is the low groove, and the low groove is annular equidistance and distributes, and the lower extreme contact of low groove is connected with buffer spring, and the low groove that sets up can avoid last buffer spring to take place the skew to cause distortion when last buffer spring receives the extrusion, has prolonged buffer spring's life.

(6) The upper end of limiting plate is opened the last draw-in groove that has annular equidistance and distributes, goes up draw-in groove and concentric coaxial with the low groove, and the upper end contact of going up the draw-in groove is connected with down buffer spring, and the last draw-in groove that sets up can avoid lower buffer spring to take place to squint and cause distortion when buffer spring receives the extrusion down, has prolonged buffer spring's life down.

(7) The upper end of supporting seat is equipped with the upper groove that annular equidistance distributes, and the contact is connected with last pressure spring in the upper groove, and the upper groove that sets up is used for preventing to go up pressure spring and takes place the skew when receiving the extrusion, prevents to go up pressure spring and produces distortion.

(8) The lower end of the limiting plate is provided with lower clamping grooves distributed at equal intervals, the lower end of each lower clamping groove is in contact connection with a lower compression spring, and the lower clamping grooves are used for preventing the lower compression springs from shifting when being extruded and preventing the lower compression springs from generating distortion.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a front view of a bumper construction of the present invention;

FIG. 3 is a side view of the shock absorbing rod structure of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a sectional view of the mounting structure of the connecting sleeve and the driving sleeve of the present invention.

The reference numbers in the figures illustrate:

the damping device comprises a support seat 1, an upper groove 11, a lower groove 12, a connecting sleeve 2, a sleeve hole 21, a guide groove 22, a driving sleeve 3, a guide block 31, a limiting plate 4, an upper clamping groove 41, a lower clamping groove 42, a buffer 5, a piston rod 51, an anti-abrasion block 52, a damping spring 53, an adjusting sleeve 54, a mounting plate 55, a damping rod 6, an upper damping spring 61, a lower damping spring 62, an upper positioning sleeve 63, a limiting block 64, a lower positioning sleeve 65, a lower limiting block 66, an upper compression spring 7 and a lower compression spring 8.

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.

Referring to fig. 1-5, a composite damper for a power head includes a support base 1, referring to fig. 1-5, a connection sleeve 2 is fixedly sleeved in the support base 1, the connection sleeve 2 is provided with a sleeve hole 21, a driving sleeve 3 is slidably connected in the sleeve hole 21, a surface of the driving sleeve 3 is fixedly sleeved with a limit plate 4, an upper end of the limit plate 4 is fixedly connected with a mounting plate 55, an upper end of the mounting plate 55 is fixedly connected with a piston rod 51, an upper end of the piston rod 51 is provided with a piston having a damping function, an outer side of the piston rod 51 is sleeved with a damping spring 53 having a damping function when the damping spring 53 is extruded, an upper end of the piston rod 51 is slidably sleeved with a damper 5, an upper end of the damper 5 is fixedly connected with the support base 1, a lower end of the support base 1 is slidably sleeved with a damping rod 6, an outer side of the damping, when the upper buffer spring 61 and the lower buffer spring 62 are extruded, the buffer and shock absorption effects are achieved, the upper buffer spring 61 and the lower buffer spring 62 are short in length and convenient to manufacture and purchase, later-stage replacement is convenient, maintenance cost is reduced, the lower end of the upper buffer spring 61 is in contact connection with the upper limiting block 64, the upper limiting block 64 is in sliding sleeved connection with the surface of the shock absorption rod 6, the upper limiting block 64 is used for limiting the position of the upper buffer spring 61, the lower end of the upper limiting block 64 is in contact connection with the upper locating sleeve 63, the upper locating sleeve 63 is in threaded connection with the surface of the shock absorption rod 6 and used for fixing the position of the upper limiting block 64, the upper end of the lower buffer spring 62 is in contact connection with the lower limiting block 66, the lower limiting block 66 is in sliding sleeved connection with the surface of the shock absorption rod 6, the lower limiting block 66 is used for limiting the position of the lower buffer spring 62, and the, the lower retainer 65 is screwed to the surface of the shock-absorbing rod 6 to fix the position of the lower stopper 66.

Referring to fig. 2-5, the inner wall of the sleeve hole 21 is provided with symmetrical guide grooves 22, the guide grooves 22 are slidably connected with guide blocks 31, the guide blocks 31 are square, the surface of the guide blocks 31 is fixedly connected with a driving sleeve 3, the arranged guide blocks 31 can prevent the driving sleeve 3 from rotating in the sleeve hole 21, the connection stability of the shock absorber is improved, the upper end of a damping spring 53 is in contact connection with an anti-wear block 52, the upper end of the anti-wear block 52 is fixedly connected with a buffer 5, the lower end of the damping spring 53 is in contact connection with an adjusting sleeve 54, the adjusting sleeve 54 is in threaded connection with a piston rod 51, the arranged adjusting sleeve 54 has the function of adjusting the elastic strength of the damping spring 53 by moving up and down, the use convenience of the shock absorber is improved, the upper end of the limiting plate 4 is provided with upper clamping grooves 41 distributed in annular and equidistant manner, the upper clamping grooves 41 are concentric and coaxial with the lower clamping groove 12, the last draw-in groove 41 that sets up receives when the buffer spring 62 receives the extrusion down, can avoid buffer spring 62 to take place the skew to cause distortion down, has prolonged buffer spring 62's life down.

Please refer to fig. 3 and 4, the upper end of the shock-absorbing rod 6 is sleeved with the upper compression spring 7, the lower end of the shock-absorbing rod 6 is sleeved with the lower compression spring 8, the upper end of the upper compression spring 7 and the lower end of the lower compression spring 8 are in contact connection with the nut, the upper compression spring 7 and the lower compression spring 8 are arranged so that the nut has a shock-proof function, the nut can be prevented from rotating due to vibration force, the installation firmness of the shock-absorbing rod 6 is improved, the lower end of the supporting seat 1 is provided with the lower groove 12, the lower groove 12 is distributed in an annular equidistant manner, the lower end of the lower groove 12 is in contact connection with the upper buffer spring 61, the lower groove 12 is arranged so that the upper buffer spring 61 can be prevented from deviating to cause distortion when the upper buffer spring 61 is extruded, and the service life of the.

Referring to fig. 3 and 4, the upper end of the supporting seat 1 is provided with upper grooves 11 distributed in an annular equidistant manner, the upper grooves 11 are connected with upper compression springs 7 in a contacting manner, the upper grooves 11 are arranged to prevent the upper compression springs 7 from deviating when being extruded, the upper compression springs 7 are prevented from generating torsional deformation, the lower ends of the limiting plates 4 are provided with lower slots 42 distributed in an equidistant manner, the lower ends of the lower slots 42 are connected with lower compression springs 8 in a contacting manner, the lower slots 42 are arranged to prevent the lower compression springs 8 from deviating when being extruded, and the lower compression springs 8 are prevented from generating torsional deformation.

When the elastic strength of the damping spring 53 needs to be adjusted, the adjusting sleeve 54 is rotated anticlockwise by a wrench, the adjusting sleeve 54 rotates anticlockwise to move upwards to extrude the damping spring 53, so that the elastic strength of the damping spring 53 is increased, when the elastic strength of the upper damping spring 61 and the lower damping spring 62 needs to be adjusted, the upper positioning sleeve 63 rotates anticlockwise by the wrench, the upper positioning sleeve 63 moves upwards to drive the upper limiting block 64 to extrude the upper damping spring 61 upwards, so that the elastic strength of the upper damping spring 61 is adjusted, then the lower positioning sleeve 65 rotates clockwise, the lower positioning sleeve 65 moves downwards to drive the lower limiting block 66 to extrude the lower damping spring 62 downwards, so that the elastic strength of the lower damping spring 62 is enhanced, and the arranged damping spring 53, the upper damping spring 61 and the lower damping spring 62 have the function of quickly adjusting the elastic strength, can be according to the quick regulation that carries out shock attenuation intensity of actual need, improved the convenience in use of bumper shock absorber, when needing to be changed shock attenuation pole 6 or component parts wherein, can dismantle through the nut at both ends about the handle will, shock attenuation pole 6 can be followed upper end or lower extreme and directly taken off and change this moment, and the shock attenuation pole 6 of setting can carry out the dismantlement change alone when damaging, has improved maintenance efficiency, has reduced cost of maintenance.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.