Large-scale spring isolator pretension compression device
Technical Field
The invention relates to the technical field of vibration isolation devices, in particular to a pre-tightening compression device of a large-scale spring vibration isolator.
Background
Vibration isolators are elastomeric elements that connect equipment to a foundation to reduce and eliminate vibrational forces transmitted from the equipment to the foundation and vibrations transmitted from the foundation to the equipment. Spring vibration isolators are one type of vibration isolator, and steel spring vibration isolators can be applied to equipment weighing hundreds of tons and light precision instruments, and are generally used in places with static compression greater than 5 centimeters or places where the temperature and other environmental conditions do not allow the use of materials such as rubber.
The spring vibration isolator has the advantages that the static compression amount is large, the natural frequency is low, the low-frequency vibration isolation is good, but the vibration isolator is easy to generate swinging motion when moving up and down, and the motion trail is easy to deviate, so that the spring vibration isolator is improved on the existing spring vibration isolator and has the function of preventing the motion trail from deviating.
Disclosure of Invention
The invention aims to provide a pre-tightening compression device of a large spring vibration isolator, which aims to solve the problems that the prior spring vibration isolator proposed by the background technology has the advantages of large static compression amount, low natural frequency and good low-frequency vibration isolation, but the vibration isolator is easy to generate swinging motion when moving up and down, and the motion track is easy to deviate.
In order to achieve the purpose, the invention provides the following technical scheme: a large-scale spring vibration isolator pre-tightening compression device comprises a base, a first spring, a clamping block, a stress plate, a fixed column and a rubber block, wherein the surface of the base is fixedly connected with an installation plate, the inside of the installation plate is movably connected with an installation block, a limiting block is arranged inside the installation block, one end of the first spring is connected with the installation block, and one end of the first spring, which is far away from the installation plate, is provided with a connecting block;
connecting plates are arranged on two sides of the mounting plate, a slide rail is arranged in each connecting plate, a slide block is arranged in each slide rail, one side of each slide block is connected with a connecting rod, one end of each slide block is connected with a butt joint block, and one end of each slide rail is provided with a butt joint groove;
one side of the connecting rod is connected with a threaded rod, one end of the threaded rod, far away from the connecting rod, is connected with a fixed block, the bottom of the fixture block is connected with a fixed block, a fixture block is arranged inside the stress plate, one side of the fixture block is provided with a linkage rod, one side of the linkage rod is fixedly connected with a pull rod, and one end of the linkage rod is connected with a second spring;
one side, far away from the threaded rod, of the connecting rod is connected with a fixed rod, the bottom of the fixed rod is connected with a fixed plate, the fixed plate is movably sleeved in the fixed column, and one side, far away from the fixed rod, of the fixed plate is connected with a third spring;
a threaded rod is sleeved in the rubber block, a limiting plate is connected to the inner wall of the rubber block, and a sliding groove is formed in the limiting plate; the outer wall of the threaded rod is connected with a linkage block.
Preferably, the number of the mounting blocks is two, the outer portion of each mounting block is in a convex shape, a groove is formed in the inner portion of each mounting block, and the size of the inner wall of each groove of each mounting block is matched with the size of the outer wall of each limiting block.
Preferably, the connecting plate is externally in an inverted L shape, the number of the connecting plates is two, and the two connecting plates are symmetrically distributed about a longitudinal vertical median line of the base.
Preferably, the inside of the slide rail is rectangular, the maximum transverse vertical dimension inside the slide rail is matched with the maximum transverse vertical dimension outside the slide block, and the slide block and the connecting plate form a sliding structure through the slide rail.
Preferably, one end of the butt joint block is triangular, the size of the outer wall of the butt joint block is matched with the size of the inner wall of the butt joint groove, and the butt joint block is perpendicular to the sliding block.
Preferably, a clamping groove with a rectangular hollow structure is formed in one side of the clamping block, the size of the inner wall of the clamping groove of the clamping block is matched with the size of the outer wall of one end of the linkage rod, and the clamping block and the stress plate form a clamping structure through the linkage rod.
Preferably, the linkage rod is perpendicular to the pull rod, and the linkage rod, the pull rod and the second spring form an elastic telescopic structure.
Preferably, the fixing rods are perpendicular to the fixing plates, two fixing rods are arranged, and the fixing rods and the fixing plates are of an integral structure.
Preferably, the rubber block is circular ring shaped, and the maximum transverse vertical dimension of the inner part of the rubber block is larger than the maximum transverse vertical dimension of the outer part of the threaded rod.
Preferably, the interlock piece is provided with five groups at equal intervals, and the interlock piece passes through the spout and constitutes sliding construction with the limiting plate.
Compared with the prior art, the invention has the beneficial effects that:
1. this large-scale spring isolator pretension compressor arrangement, inside the operator will install the piece and slide to insert into the mounting panel, the stopper is blocked inside the installation piece completely simultaneously, makes the installation piece by fixed block inside the mounting panel, and the installation piece that the first spring other end is connected is also inside the connecting block by fixed block like this, and first spring is by fixed mounting between mounting panel and connecting block, has played the effect of the first spring of being convenient for to install.
2. This large-scale spring isolator pretension compressor arrangement, when the atress board received external pressure and extrudees first spring downwards, the threaded rod downstream under the effect of atress board, drive the slider along slide rail downstream, the back is relieved to pressure, and the atress board is along slide rail rebound under the elastic action of first spring, drives slider rebound to joining in marriage a piece one end block entering and to joining in marriage inslot portion to the effect that the movement track that prevents the threaded rod produced the skew has been played.
3. This large-scale spring isolator pretension compressor arrangement, the operator is to one side pulling pull rod, and the trace extrudees the second spring after the effect of pull rod is moved to one side, makes trace one end break away from fixture block one side, removes the block relation between trace and the fixture block, upwards extracts the atress board again, has played the atress board that is convenient for produce wearing and tearing scheduling problem in the use and has safeguarded the effect.
4. This large-scale spring isolator pretension compressor arrangement receives the pressure action downstream when the connecting rod, drives the dead lever downstream, and the fixed plate downstream extrudees the third spring under the interlock effect of dead lever, and external force removes the back, and the fixed plate is automatic re-setting under the elasticity expansion effect of third spring to make the connecting rod reset, the first spring of third spring cooperation is flexible removal, has played the effect that is convenient for improve the vibration isolation performance of atress board.
5. This large-scale spring isolator pretension compressor arrangement, the atress of atress board drives the threaded rod and moves down in the inside of block rubber when moving down, and the trace that the interlock piece slided along the spout under the interlock effect of threaded rod because the interlock piece is equidistant to be provided with five groups, makes the threaded rod slide from top to bottom at the inside intermediate position of block rubber to the effect of the friction force between reduction threaded rod and the block rubber has been played.
Drawings
FIG. 1 is a schematic sectional front view of the present invention;
FIG. 2 is an enlarged view of the present invention A;
FIG. 3 is an enlarged view of the present invention B;
FIG. 4 is an enlarged view of the present invention B;
FIG. 5 is a schematic cross-sectional view of the rubber block of the present invention.
In the figure: 1. a base; 2. mounting a plate; 3. mounting blocks; 4. a limiting block; 5. a first spring; 6. connecting blocks; 7. a connecting plate; 8. a slide rail; 9. a slider; 10. a connecting rod; 11. a butt joint block; 12. a butt joint groove; 13. a threaded rod; 14. a fixed block; 15. a clamping block; 16. a stress plate; 17. a linkage rod; 18. a pull rod; 19. a second spring; 20. a fixing rod; 21. a fixing plate; 22. fixing a column; 23. a third spring; 24. a rubber block; 25. a limiting plate; 26. a chute; 27. a linkage block.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a large-scale spring vibration isolator pre-tightening compression device comprises a base 1, a mounting plate 2, a mounting block 3, a limiting block 4, a first spring 5, a connecting block 6, a connecting plate 7, a slide rail 8, a slide block 9, a connecting rod 10, an abutting block 11, an abutting groove 12, a threaded rod 13, a fixed block 14, a clamping block 15, a stress plate 16, an interlocking rod 17, a pull rod 18, a second spring 19, a fixed rod 20, a fixed plate 21, a fixed column 22, a third spring 23, a rubber block 24, a limiting plate 25, a sliding groove 26 and an interlocking block 27, wherein the mounting plate 2 is fixedly connected to the surface of the base 1, the mounting block 3 is movably connected to the inside of the mounting plate 2, the mounting block 3 is provided with two mounting blocks 3, the outside of the mounting block 3 is in a convex shape, the inside of the mounting block 3 is provided with a groove, the size of the inner wall of the groove of the mounting block 3 is matched with the size of the outer wall of the limiting block 4, and the mounting block 3 is fixedly clamped inside the mounting block 2 by the limiting block 4, a limiting block 4 is arranged inside the mounting block 3, one end of the first spring 5 is connected with the mounting block 3, and one end of the first spring 5, which is far away from the mounting plate 2, is provided with a connecting block 6;
the two sides of the mounting plate 2 are provided with connecting plates 7, the outer part of each connecting plate 7 is in an inverted L shape, the number of the connecting plates 7 is two, the two connecting plates 7 are symmetrically distributed about a vertical middle parting line of the base 1, the effect of utilizing the two connecting plates 7 to enable the stress plate 16 to vertically move is achieved, a slide rail 8 is arranged inside each connecting plate 7, the inner part of each slide rail 8 is in a rectangular shape, the maximum transverse vertical dimension inside each slide rail 8 is matched with the maximum transverse vertical dimension outside each slide block 9, each slide block 9 forms a sliding structure with the connecting plates 7 through the slide rails 8, the effect of enabling each slide block 9 to slide along the inner track of each slide rail 8 is achieved, each slide block 9 is arranged inside each slide rail 8, one side of each slide block 9 is connected with a connecting rod 10, one end of each slide block 9 is connected with a butt joint block 11, one end of each butt joint block 11 is in a triangular shape, and the size of the outer wall of each butt joint block 11 is matched with the size of the inner wall of the butt joint groove 12, the butt joint block 11 is perpendicular to the sliding block 9, so that the butt joint block 11 is vertically clamped into the butt joint groove 12 under the linkage action of the sliding block 9, and the butt joint groove 12 is formed in one end of the sliding rail 8;
one side of the connecting rod 10 is connected with a threaded rod 13, one end of the threaded rod 13, which is far away from the connecting rod 10, is connected with a fixed block 14, the bottom of the clamping block 15 is connected with the fixed block 14, one side of the clamping block 15 is provided with a clamping groove with a rectangular hollow structure, the size of the inner wall of the clamping groove of the clamping block 15 is matched with the size of the outer wall of one end of the linkage rod 17, the clamping block 15 and the stressed plate 16 form a clamping structure through the linkage rod 17, so that one end of the linkage rod 17 is completely and fixedly clamped on one side of the clamping block 15, the clamping block 15 is arranged in the stressed plate 16, the linkage rod 17 is arranged on one side of the clamping block 15, the linkage rod 17 is perpendicular to the pull rod 18, the linkage rod 17, the pull rod 18 and the second spring 19 form an elastic telescopic structure, so that one end of the linkage rod 17 automatically resets under the elastic expansion action of the second spring 19, and one side of the linkage rod 17 is fixedly connected with the pull rod 18, one end of the linkage rod 17 is connected with a second spring 19;
the side, far away from the threaded rod 13, of the connecting rod 10 is connected with a fixing rod 20, the fixing rod 20 is perpendicular to a fixing plate 21, the fixing rods 20 are arranged in two, the fixing rod 20 and the fixing plate 21 are of an integral structure, so that the fixing plate 21 can move inside a fixing column 22 under the interlocking action of the fixing rod 20, the fixing plate 21 is connected to the bottom of the fixing rod 20, the fixing plate 21 is movably sleeved inside the fixing column 22, and a third spring 23 is connected to one side, far away from the fixing rod 20, of the fixing plate 21;
the inside threaded rod 13 that has cup jointed of block rubber 24, block rubber 24 is the annular shape, and the inside biggest horizontal vertical dimension of block rubber 24 is greater than the outside biggest horizontal vertical dimension of threaded rod 13, has played the effect that makes threaded rod 13 remove in block rubber 24 is inside, 24 inner wall connections of block rubber have limiting plate 25, limiting plate 25 is inside to have seted up spout 26, 13 outer wall connections of threaded rod has trace block 27, trace block 27 equidistant is provided with five groups, and trace block 27 passes through spout 26 and limiting plate 25 constitution sliding structure, has played and has made trace block 27 along the gliding effect of spout 26.
The working principle is as follows: when a large-sized spring vibration isolator is used for pre-tightening a compression device, firstly, an operator inserts an installation block 3 into an installation plate 2 in a sliding manner, a limit block 4 is completely clamped inside the installation block 3, the installation block 3 is fixedly clamped inside the installation plate 2, similarly, the installation block 3 connected with the other end of a first spring 5 is also fixedly clamped inside a connecting block 6, the first spring 5 is fixedly arranged between the installation plate 2 and the connecting block 6 to achieve the effect of facilitating installation of the first spring 5, then when a stress plate 16 is pressed downwards by external pressure to extrude the first spring 5, a threaded rod 13 moves downwards under the effect of the stress plate 16 to drive a sliding block 9 to move downwards along a sliding rail 8, after the pressure is relieved, the stress plate 16 moves upwards along the sliding rail 8 under the elastic action of the first spring 5 to drive the sliding block 9 to move upwards to clamp one end of a butt joint block 11 into a butt joint groove 12, thereby playing a role of preventing the movement track of the threaded rod 13 from deviating, then an operator pulls the pull rod 18 to one side, the linkage rod 17 moves to one side under the action of the pull rod 18 and then presses the second spring 19, so that one end of the linkage rod 17 is separated from one side of the fixture block 15, the clamping relation between the linkage rod 17 and the fixture block 15 is removed, then the stress plate 16 is extracted upwards, the function of maintaining the stress plate 16 with the problems of abrasion and the like in the use process is achieved, then when the connecting rod 10 moves downwards under the action of pressure, the fixing rod 20 is driven to move downwards, the fixing plate 21 moves downwards under the linkage action of the fixing rod 20 and presses the third spring 23, after the external force is removed, the fixing plate 21 automatically resets under the elastic expansion action of the third spring 23, so that the connecting rod 10 resets, the third spring 23 performs telescopic movement in cooperation with the first spring 5, and the function of facilitating the improvement of the vibration isolation performance of the stress plate 16 is achieved, finally, when the stress plate 16 is stressed to move downwards, the threaded rod 13 is driven to move downwards in the rubber block 24, the linkage blocks 27 slide along the track of the sliding groove 26 under the linkage action of the threaded rod 13, five groups of linkage blocks 27 are arranged at equal intervals, so that the threaded rod 13 slides up and down in the middle position in the rubber block 24, and the effect of reducing the friction force between the threaded rod 13 and the rubber block 24 is achieved, so that the large-scale spring vibration isolator pre-tightening compression device is characterized, and the content which is not described in detail in the description belongs to the prior art which is known by technicians in the field.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.