Multi-stage adjustable damping oil buffer

Abstract

The utility model discloses a multi-stage adjustable damping oil buffer which comprises a mounting cylinder and an adjusting and filtering mechanism, and a fixing plate which abuts against the inner wall of the mounting cylinder in a sliding mode is connected into the mounting cylinder in a sliding mode. The adjusting and filtering mechanism comprises a moving part fixedly mounted at the upper end of the fixing plate, a connecting cylinder is fixedly mounted at the bottom of the fixing plate, a limiting rod slidably abutting against the inner wall of the connecting cylinder is slidably connected in the connecting cylinder, a limiting ring capable of abutting against the limiting rod is fixedly mounted in the connecting cylinder, and a piston part is slidably connected in the mounting cylinder; a fixing block abutting against the piston piece is fixedly installed at the bottom of the limiting rod, reset pieces are fixedly installed on the piston piece and the installation cylinder, and a filtering piece is fixedly installed at the upper end of the fixing plate. According to the buffer, the fixing block, the filtering piece, the small damping hole and the large damping hole are matched, the situation that the production efficiency is reduced due to manual adjustment is avoided, the stability and reliability of equipment operation are improved, and meanwhile the buffering effect of the buffer is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil pressure buffer technical field, concretely is a kind of multistage adjustable damping oil pressure buffer. BACKGROUND

[0002] Oil pressure buffer passes through hydraulic damping principle, plays key protection and control effect in mechanical system operation.When mechanical component is impacted by starting, reversing, piston in buffer is pressed to move, forces hydraulic oil to flow through damping hole, converts kinetic energy into heat energy by throttling, to effectively slow down impact, reduce vibration and noise, avoid equipment parts damaged due to rigid collision, simultaneously, it can also accurately control the deceleration process of moving part, ensure the accuracy of equipment positioning, prevent out of control due to speed mutation.

[0003] When artificial adjusts the damping effect of oil pressure buffer, it needs to spend more time and effort, is difficult to complete adjustment quickly and accurately, in the working scene needing to frequently adjust buffer performance, it can lead to equipment downtime increase, reduce production efficiency, and rely on artificial experience to adjust, and the technical level and operation habit of different operators exist difference, easily make the adjustment accuracy of buffer unstable, affect the stability and reliability of equipment operation, simultaneously, the resistance of oil liquid passing is increased, flow is reduced, buffering effect of buffer is weakened, cannot effectively absorb and buffer impact force in equipment operation process, possibly lead to equipment parts damaged, shorten equipment service life;For this reason, the application provides a kind of multistage adjustable damping oil pressure buffer. UTILITY MODEL CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a kind of multistage adjustable damping oil pressure buffer, effectively solve the problem that oil pressure buffer adjustment needs manual operation, damping hole is easy to block.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multistage adjustable damping oil pressure buffer, including installation cylinder and adjusting filter mechanism, the fixed plate that is slidably connected with the inner wall of installation cylinder is slidably connected in the installation cylinder;Adjusting filter mechanism includes the moving piece of being fixedly installed on the top of fixed plate, the bottom of fixed plate is fixedly installed with connecting cylinder, connecting cylinder is slidably connected with the limit rod that is slidably connected with the inner wall of connecting cylinder, connecting cylinder is fixedly installed with the limit ring that can be abutted with limit rod in, piston piece is slidably connected in installation cylinder, the fixed block that is abutted with piston piece is fixedly installed in the bottom of limit rod, piston piece is fixedly installed with return piece on installation cylinder, the filter piece of being fixedly installed on the top of fixed plate.

[0006] Preferably, the moving piece includes a connecting rod fixedly installed on the top of the fixed plate, and the moving block is fixedly installed on the top end of the connecting rod.

[0007] Preferably, the piston piece comprises a piston plate sliding against the inner wall of the mounting cylinder, a plurality of small damping holes penetrating the piston plate are fixedly connected to the piston plate, and the plurality of small damping holes are arranged in a circular array on the piston plate.

[0008] Preferably, a large damping hole penetrating the piston plate is fixedly installed on the piston plate, and the fixed block is arranged opposite to the large damping hole and abuts against the piston plate.

[0009] Preferably, the reset piece comprises a fixed cylinder fixedly installed at the bottom of the piston plate, a limiting cylinder slidingly connected to the inner wall of the fixed cylinder and abutting against the fixed cylinder, and a first spring fixedly installed between the piston plate and the mounting cylinder and located in the limiting cylinder and the fixed cylinder.

[0010] Preferably, the filter piece comprises a feeding pipe fixedly installed on the fixed plate and penetrating the fixed plate, an annular magnet fixedly installed in the feeding pipe, and a filter plate slidingly connected to the inner wall of the feeding pipe and abutting against the annular magnet.

[0011] Preferably, a limiting block slidingly connected to the inner wall of the feeding pipe and abutting against the filter plate is arranged in the feeding pipe, a pull rod is fixedly installed at the upper end of the limiting block, a sliding groove is arranged on the limiting block, a limiting bolt slidingly connected to the inner wall of the sliding groove is arranged in the sliding groove, the limiting bolt penetrates the feeding pipe and is slidingly connected to the feeding pipe, and a second spring is fixedly installed on the feeding pipe and the limiting bolt.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by means of the cooperation between the moving piece, the fixed block, the small damping hole and the large damping hole, the opening and closing of the large damping hole can be changed as the pressure becomes larger, thereby the oil pressure buffer can be adjusted in multiple stages, manual adjustment is avoided to reduce the production efficiency, the stability and reliability of equipment operation are improved, and by means of the filter piece, the hydraulic oil entering the mounting cylinder can be filtered, the damping hole is prevented from being blocked by sundries, and the buffering effect of the buffer is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0014] In the drawings:

[0015] Figure 1 It is a structural schematic view of the multi-stage adjustable damping oil pressure buffer of the utility model;

[0016] Figure 2 It is a sectional view of the multi-stage adjustable damping oil pressure buffer of the utility model;

[0017] Figure 3 It is the side sectional view of the multi-stage adjustable damping oil pressure buffer of the utility model;

[0018] Figure 4 It is the utility model Figure 2 The enlarged schematic view of A in the middle;

[0019] Figure 5 It is the utility model Figure 3 The enlarged schematic view of B in the middle;

[0020] In the figure: 1, installation cylinder;2, connecting rod;3, moving block;4, fixed plate;5, feed pipe;6, piston plate;7, small damping hole;8, fixed cylinder;9, limiting cylinder;10, first spring;11, connecting cylinder;12, limiting rod;13, limiting ring;14, fixed block;15, large damping hole;16, limiting block;17, sliding slot;18, annular magnet;19, filter plate;20, second spring;21, limiting bolt. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0022] By Figures 1-5 Given, the utility model includes installation cylinder 1 and adjusting filter mechanism, installation cylinder 1 is slidably connected with the fixed plate 4 of the inner wall sliding of installation cylinder 1, adjusting filter mechanism includes the moving piece of fixed installation on the upper end of fixed plate 4, and the moving piece includes the connecting rod 2 of fixed installation on the upper end of fixed plate 4, and the upper end of connecting rod 2 is fixedly installed with moving block 3, and moving block 3 is fixedly connected with the machine that will vibrate, and the vibration generated by the machine will drive moving block 3 to move;

[0023] The bottom of fixed plate 4 is fixedly installed with connecting cylinder 11, and the limiting rod 12 of the inner wall sliding of connecting cylinder 11 is slidably connected in connecting cylinder 11, and the limiting ring 13 that can abut against limiting rod 12 is fixedly installed in connecting cylinder 11, and the piston piece is slidably connected in installation cylinder 1, and the piston piece includes the piston plate 6 of the inner wall sliding of installation cylinder 1, and a plurality of small damping holes 7 are fixedly connected on the piston plate 6 and are arranged through the piston plate 6, and the plurality of small damping holes 7 are arranged in a circular array on the piston plate 6, and the large damping hole 15 is fixedly installed on the piston plate 6 and is arranged through the piston plate 6, and the fixed block 14 is arranged opposite to the large damping hole 15 and abuts against the piston plate;

[0024] When the machine moves, the moving machine will drive the moving block 3 to move, the moving block 3 will drive the connecting rod 2 to move, the connecting rod 2 will drive the fixed block 4 to move, the fixed block 4 will drive the hydraulic oil below to move, the hydraulic oil will also drive the piston plate 6 to move, when the piston plate 6 moves, the fixed block 14 will move with the piston plate 6 due to gravity, when the limiting ring 13 abuts against the limiting rod 12, the limiting rod 12 no longer moves, the fixed block 14 no longer moves, the piston plate 6 continues to move and no longer abuts against the fixed block 14, the hydraulic oil moves through the small damping hole 7 and the large damping hole 15 to the lower side of the piston plate 6, which increases the flow of the hydraulic oil and thus increases the buffering effect, the hydraulic oil converts kinetic energy into heat energy through throttling, thereby completing the buffering work;

[0025] When the machine moves, the moving machine will drive the moving block 3 to move, the moving block 3 will drive the connecting rod 2 to move, the connecting rod 2 will drive the fixed block 4 to move, the fixed block 4 will drive the hydraulic oil below to move, the hydraulic oil will also drive the piston plate 6 to move, when the piston plate 6 moves, the fixed block 14 will move with the piston plate 6 due to gravity, when the limiting ring 13 abuts against the limiting rod 12, the limiting rod 12 no longer moves, the fixed block 14 no longer moves, the piston plate 6 continues to move and no longer abuts against the fixed block 14, the hydraulic oil moves through the small damping hole 7 and the large damping hole 15 to the lower side of the piston plate 6, which increases the flow of the hydraulic oil and thus increases the buffering effect, the hydraulic oil converts kinetic energy into heat energy through throttling, thereby completing the buffering work;

[0026] The bottom of the limiting rod 12 is fixedly installed with a fixed block 14 abutting against the piston piece, the piston piece is fixedly installed on the installation cylinder 1 with a reset piece, the reset piece comprises a fixed cylinder 8 fixedly installed on the bottom of the piston plate 6, a limiting cylinder 9 slidably connected with the inner wall of the fixed cylinder 8, the piston plate 6 is fixedly installed on the installation cylinder 1 with a first spring 10 located between the piston plate 6 and the installation cylinder 1, and the first spring 10 is located in the limiting cylinder 9 and the fixed cylinder 8;

[0027] The upper end of the fixed plate 4 is fixedly installed with a filter piece, the filter piece comprises an inlet pipe 5 fixedly installed on the fixed plate 4 and penetrating through the fixed plate 4, an annular magnet 18 fixedly installed in the inlet pipe 5, a filter plate 19 slidably connected with the inner wall of the inlet pipe 5 and abutting against the annular magnet 18, a limiting block 16 slidably connected with the inner wall of the inlet pipe 5 and abutting against the filter plate 19, a pull rod fixedly installed at the upper end of the limiting block 16, a sliding groove 17 arranged on the limiting block 16, a limiting bolt 21 slidably connected with the inner wall of the sliding groove 17, the limiting bolt 21 penetrating through the inlet pipe 5 and slidably connected with the inlet pipe 5, and a second spring 20 fixedly installed on the inlet pipe 5 and the limiting bolt 21;

[0028] The filter plate 19 can filter out impurities in the hydraulic oil. When adding hydraulic oil, pulling the limiting pin 21 can pull the limiting pin 21 out of the sliding groove 17, the second spring 20 is stretched, the limiting block 16 is no longer limited, pulling the pull rod can pull the limiting block 16 out of the feed pipe 5, pour the hydraulic oil into the feed pipe 5, and then flow into the mounting frame 1 after being filtered by the filter plate 19, after adding, put the limiting block 16 into the feed pipe 5, the limiting block 16 will slide against the inner wall of the feed pipe 5, then the limiting block 16 will abut against the filter plate 19, at this time the limiting pin 21 is just opposite to the sliding groove 17, release the limiting pin 21, the second spring 20 can drive the limiting pin 21 to move, the movement of the limiting pin 21 will slide against the inner wall of the sliding groove 17, thereby limiting the limiting block 16, thereby avoiding external impurities from entering the mounting frame 1;

[0029] When it is necessary to clean or replace the filter plate 19, pulling the limiting pin 21 can pull the limiting pin 21 out of the sliding groove 17, the second spring 20 is stretched, the limiting block 16 is no longer limited, pulling the pull rod can pull the limiting block 16 out of the feed pipe 5, thereby the filter plate 19 adsorbed on the annular magnet 18 can be removed, after cleaning the filter plate 19, the filter plate 19 is opposite to the feed pipe 5, the filter plate 19 abuts against the annular magnet 18, the filter plate 19 will be adsorbed on the annular magnet 18, then the limiting block 16 is put into the feed pipe 5, the limiting block 16 will slide against the inner wall of the feed pipe 5, then the limiting block 16 will abut against the filter plate 19, at this time the limiting pin 21 is just opposite to the sliding groove 17, release the limiting pin 21, the second spring 20 can drive the limiting pin 21 to move, the movement of the limiting pin 21 will slide against the inner wall of the sliding groove 17, thereby limiting the limiting block 16, and further limiting the filter plate 19.

[0030] Working principle: when working, the moving machine will drive the moving block 3 to move, the moving block 3 will drive the connecting rod 2 to move, the connecting rod 2 will drive the fixed block 4 to move, the fixed block 4 will drive the lower hydraulic oil to move, the hydraulic oil will move through the small damping hole 7 to the lower side of the piston plate 6, at the same time the hydraulic oil will also drive the piston plate 6 to move, the piston plate 6 will drive the fixed cylinder 8 and the first spring 10 to move, the hydraulic oil flows through the small damping hole 7 and converts kinetic energy into heat energy through throttling, then the first spring 10 will drive the piston plate 6 to reset, thereby completing the buffering work, the limiting cylinder 9 and the fixed cylinder 8 can avoid the hydraulic oil adhering to the first spring 20, and can avoid the first spring 20 being eroded;

[0031] When the machine moves a lot, the moving machine will move the moving block 3, the moving block 3 will move the connecting rod 2, the connecting rod 2 will move the fixed block 4, the fixed block 4 will move the hydraulic oil below, and the hydraulic oil will also move the piston plate 6. When the piston plate 6 moves, the fixed block 14 will move with the piston plate 6 due to gravity. When the limiting ring 13 abuts against the limiting rod 12, the limiting rod 12 no longer moves, and the fixed block 14 no longer moves. The piston plate 6 continues to move and no longer abuts against the fixed block 14. The movement of the hydraulic oil will pass through the small damping hole 7 and the large damping hole 15 to the lower side of the piston plate 6, thereby increasing the flow of the hydraulic oil and increasing the buffering effect. The hydraulic oil converts kinetic energy into heat energy through throttling, thereby completing the buffering work.

[0032] The filter plate 19 can filter out impurities in the hydraulic oil. When adding hydraulic oil, pulling the limiting pin 21 can pull the limiting pin 21 out of the chute 17. The second spring 20 is stretched, and the limiting block 16 is no longer limited. Pulling the pull rod can pull the limiting block 16 out of the feed pipe 5. The hydraulic oil is poured into the feed pipe 5 and flows into the mounting frame 1 after being filtered by the filter plate 19. After the addition is completed, the limiting block 16 is placed into the feed pipe 5. The limiting block 16 will slide against the inner wall of the feed pipe 5. Then the limiting block 16 will abut against the filter plate 19. At this time, the limiting pin 21 is just opposite to the chute 17. Release the limiting pin 21, and the second spring 20 can move the limiting pin 21. The movement of the limiting pin 21 will slide against the inner wall of the chute 17, thereby limiting the limiting block 16, thereby preventing external impurities from entering the mounting frame 1;

[0033] When the filter plate 19 needs to be cleaned or replaced, pulling the limiting pin 21 can pull the limiting pin 21 out of the chute 17. The second spring 20 is stretched, and the limiting block 16 is no longer limited. Pulling the pull rod can pull the limiting block 16 out of the feed pipe 5, thereby removing the filter plate 19 adsorbed on the annular magnet 18. After cleaning the filter plate 19, the filter plate 19 is arranged opposite to the feed pipe 5. Push the filter plate 19 to abut against the annular magnet 18. The filter plate 19 will be adsorbed on the annular magnet 18. Then the limiting block 16 is placed into the feed pipe 5. The limiting block 16 will slide against the inner wall of the feed pipe 5. Then the limiting block 16 will abut against the filter plate 19. At this time, the limiting pin 21 is just opposite to the chute 17. Release the limiting pin 21, and the second spring 20 can move the limiting pin 21. The movement of the limiting pin 21 will slide against the inner wall of the chute 17, thereby limiting the limiting block 16, thereby completing the limiting of the filter plate 19.

Claims

1. A multi-stage adjustable damping oil pressure shock absorber comprising a mounting cylinder (1) and an adjusting filter mechanism, characterized in that: The mounting cylinder (1) is slidably connected with a fixed plate (4) which is in sliding abutment with the inner wall of the mounting cylinder (1); the adjusting filter mechanism comprises a moving piece fixedly installed on the upper end of the fixed plate (4), the bottom of the fixed plate (4) is fixedly installed with a connecting cylinder (11), the connecting cylinder (11) is slidably connected with a limiting rod (12) which is in sliding abutment with the inner wall of the connecting cylinder (11), the connecting cylinder (11) is fixedly installed with a limiting ring (13) which can abut against the limiting rod (12), the mounting cylinder (1) is slidably connected with a piston piece, the bottom of the limiting rod (12) is fixedly installed with a fixed block (14) which abuts against the piston piece, the piston piece is fixedly installed with a reset piece on the mounting cylinder (1), and the upper end of the fixed plate (4) is fixedly installed with a filter piece.

2. A multi-stage adjustable damping oil hydraulic shock absorber according to claim 1, characterized in that: The moving piece comprises a connecting rod (2) fixedly installed on the upper end of the fixed plate (4), and the upper end of the connecting rod (2) is fixedly installed with a moving block (3).

3. A multi-stage adjustable damping oil hydraulic shock absorber according to claim 1, characterized in that: The piston piece comprises a piston plate (6) which is in sliding abutment with the inner wall of the mounting cylinder (1), and the piston plate (6) is fixedly connected with a plurality of small damping holes (7) which are arranged through the piston plate (6), and the plurality of small damping holes (7) are arranged in a circumferential array on the piston plate (6).

4. A multi-stage adjustable damping oil hydraulic shock absorber according to claim 3, characterized in that: The piston plate (6) is fixedly installed with a large damping hole (15) arranged through the piston plate (6), the fixed block (14) is arranged in abutment with the piston plate and opposite to the large damping hole (15).

5. A multi-stage adjustable damping oil hydraulic shock absorber according to claim 1, characterized in that: The reset piece comprises a fixed cylinder (8) fixedly installed on the bottom of the piston plate (6), the fixed cylinder (8) is slidably connected with a limiting cylinder (9) which is in sliding abutment with the inner wall of the fixed cylinder (8), the piston plate (6) is fixedly installed with a first spring (10) between the piston plate (6) and the mounting cylinder (1), and the first spring (10) is located in the limiting cylinder (9) and the fixed cylinder (8).

6. A multi-stage adjustable damping oil hydraulic shock absorber according to claim 1, characterized in that: The filter piece comprises a feed pipe (5) fixedly installed on the fixed plate (4) and arranged through the fixed plate (4), the feed pipe (5) is fixedly installed with an annular magnet (18) inside, and the feed pipe (5) is slidably connected with a filter plate (19) which is in sliding abutment with the inner wall of the feed pipe (5) and abuts against the annular magnet (18).

7. A multi-stage adjustable damping oil hydraulic shock absorber according to claim 6, characterized in that: The feed pipe (5) is slidably connected with a limiting block (16) which is in sliding abutment with the inner wall of the feed pipe (5) and abuts against the filter plate (19), the upper end of the limiting block (16) is fixedly installed with a pull rod, the limiting block (16) is provided with a sliding groove (17), the sliding groove (17) is slidably connected with a limiting bolt (21) which is in sliding abutment with the inner wall of the sliding groove (17), the limiting bolt (21) penetrates through the feed pipe (5) and is slidably connected therewith, and the limiting bolt (21) is fixedly installed with a second spring (20) on the feed pipe (5).

Images