Non-newtonian fluid triangular damper

Abstract

The application discloses a non-Newtonian fluid triangular damper, which comprises a damping bearing device, a connecting device and a damping device; the damping bearing device comprises a deep groove ball bearing, an extension box, a first spring and a lock catch, is used for being connected with a drill chuck of a drilling machine, and plays a damping effect in a horizontal direction under the condition that normal work of the drilling machine is ensured; the connecting device comprises a circular ring, an outer connecting column and an inner connecting column, outputs an up-down movement effect and accurately controls a processing body placing space under the condition that normal work of the drilling machine is ensured; and the damping device comprises a damping rod, a damping pad, a first baffle, a second spring and an upper end cover, reduces vibration in a vertical direction under the condition that normal work of the drilling machine is ensured, and ensures good grip. The application relieves vibration in the horizontal direction and the vertical direction, improves the use feeling of an operator, can be used for damping of a household electric drill and a drilling machine equipment, has strong applicability, and has a wide application range.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vibration reduction, in particular to a non-Newtonian fluid triangular vibration absorber. BACKGROUND

[0002] Drilling is common in various machining operations, and drilling operation has the characteristics of large cutting amount, difficult chip removal and easy vibration, which can easily bring discomfort to the operator and affect the accuracy of related machining parts, and even cause safety accidents due to broken drill bits flying out and other reasons, so reducing the vibration of drilling equipment is an important task in the current machining field. SUMMARY

[0003] In order to solve the above problems existing in the prior art, the purpose of the present application is to provide a non-Newtonian fluid triangular vibration absorber, which can reduce the vibration of the horizontal plane and the upper and lower parts while ensuring the normal operation of the drilling equipment, and improve the user experience of the operator.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a non-Newtonian fluid triangular vibration absorber, comprising a damping bearing device, a connecting device and a damping device;

[0005] The damping bearing device comprises a deep groove ball bearing, and a stretch box body is arranged around the inner wall of the inner ring of the deep groove ball bearing, three hollow rubber shells are arranged at equal intervals along the circumferential direction in the stretch box body, a first spring is fixedly connected to the inner wall of each rubber shell near the outer ring of the deep groove ball bearing, the other end of each first spring is connected to a lock catch for connecting a drill chuck, the lock catch is sequentially penetrated through the rubber shell and the stretch box body from the end away from the first spring, and the rubber shell is filled with non-Newtonian fluid;

[0006] The connecting device is used for connecting the damping bearing device and the damping device, and comprises a circular ring and three connecting columns arranged at equal intervals on the outer circumferential wall of the circular ring, and the outer circumferential wall of the outer ring of the deep groove ball bearing is fixedly connected to the inner circumferential wall of the circular ring;

[0007] The damping device comprises three damping rods which are movably connected to the ends of the connecting columns away from the circular ring, each damping rod is filled with non-Newtonian fluid, and the end of each connecting column away from the circular ring can move up and down in the damping rod.

[0008] As a further improvement of the present application, the damping rod has an inner cavity, a sliding groove in communication with the inner cavity of the damping rod is vertically arranged on the opposite outer wall of the damping rod, a plurality of damping pads are arranged at the bottom of the inner cavity of the damping rod, a first baffle is movably arranged at the top of the damping pads, a second spring is connected to the top of the first baffle, an end cover is movably arranged at the top end of each damping rod, the bottom of the end cover is movably connected to the top of the second spring, and the end of each connecting column away from the circular ring is lapped with the first baffle through the sliding groove.

[0009] As a further improvement of the present application, the damping device further comprises a second baffle horizontally movably arranged at the top end of the second spring, the top of the second spring is fixedly connected with the bottom of the second baffle, the bottom of the second spring is fixedly connected with the top of the first baffle, a sliding block is slidably arranged on the inner wall of the two ends of the upper end cavity of the second baffle, an inner sliding groove for the sliding block to slide up and down is arranged on the inner wall of the two ends of the upper end cavity, and a through hole matched with the sliding block is arranged on the side wall of the end of the inner connecting column away from the circular ring.

[0010] As a further improvement of the present application, each connecting column comprises an outer connecting column connected with the peripheral wall of the outer ring of the circular ring and an inner connecting column telescopically arranged in the outer connecting column, and the end of each inner connecting column away from the outer connecting column is movable up and down in the damping rod.

[0011] As a further improvement of the present application, matched limiting holes are arranged on the outer connecting column and the inner connecting column, and the limiting is realized by a taper pin or a buckle.

[0012] As a further improvement of the present application, the damping pad is arranged in three pieces, which are sequentially stacked in the inner cavity of the damping rod, and each damping pad is filled with a non-Newtonian fluid.

[0013] As a further improvement of the present application, the bottom end of each damping rod is fixedly connected with a base.

[0014] As a further improvement of the present application, the bottom of each base is provided with a suction cup.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The drill chuck hole is connected through the lock buckle, in the process of vibration of the drilling machine, under the action of the first spring connected with the lock buckle, the horizontal vibration is relieved, one end of the connecting column moves up and down in the damping rod, the vertical vibration is relieved, and the non-Newtonian fluid filled in the rubber shell and the damping rod slows down the drilling machine according to the characteristics of the non-Newtonian fluid. The present application relieves the horizontal and vertical vibrations under the condition of ensuring the normal work of the drilling equipment, and improves the use feeling of the operator.

[0017] 2. The telescopic connecting column is arranged, the operability of the machining body space size during the work of the drilling machine is improved, and the utilization rate of the non-Newtonian fluid triangular damper is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a sectional view of the damping bearing device in the present application;

[0020] Figure 3 Figure 1 is a schematic diagram of the internal structure of the damping rod in the present application;

[0021] Figure 4 Figure 2 is a schematic diagram of the connecting device structure in the present application;

[0022] Figure 5 Figure 3 is a sectional view of the connecting column in the present application;

[0023] In the drawings: 1, damping bearing device; 10, deep groove ball bearing; 11, extension box; 12, rubber shell; 13, first spring; 14, lock catch;

[0024] 2, connecting device; 20, circular ring; 21, connecting column; 210, outer connecting column; 220, inner connecting column; 230, through hole; 240, limiting hole;

[0025] 3, damping device; 30, damping rod; 31, sliding groove; 32, damping pad; 33, first baffle; 34, second spring; 35, end cover; 36, second baffle; 37, sliding block; 38, base. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0027] Embodiment 1

[0028] As Figure 1 , Figure 2As shown, the present application relates to a non-Newtonian fluid triangular damper, comprising a damping bearing device 1, a connecting device 2 and a damping device 3; the damping bearing device 1 comprises a deep groove ball bearing 10, and a stretching box 11 is arranged on the inner wall of the inner ring of the deep groove ball bearing 10, three hollow rubber shells 12 are arranged equidistantly along the circumferential direction in the stretching box 11, a first spring 13 is fixedly connected to the inner wall of the outer ring of the deep groove ball bearing 10 in each rubber shell 12, the other end of each first spring 13 is connected with a lock catch 14 for connecting a drilling machine chuck, and the lock catch 14 away from the first spring 13 penetrates the rubber shell 12 and the stretching box 11 in turn, the rubber shell 12 is filled with non-Newtonian fluid, the damping bearing device 1 is connected with the drilling equipment through the lock catch 14 matched with the drilling machine chuck hole, the stretching box 11 is integrated with the deep groove ball bearing 10, three damping first springs 13 are arranged in the stretching box 11, the first spring 13 matched with the lock catch 14 has a small coefficient, and the lock catch 14 of the damping bearing device 1 is embedded or taken out through a device with different rotating directions. The non-Newtonian fluid filled in the rubber shell 12 plays a role in reducing the speed of the drilling machine according to the characteristics of the non-Newtonian fluid, and in addition, through the connection of the lock catch 14 to the drilling machine chuck hole, the drilling machine relieves the horizontal vibration in the process of vibration under the action of the first spring 13 connected with the lock catch 14.

[0029] Specifically, the connecting device 2 is used for connecting the damping bearing device 1 and the damping device 3, and comprises a circular ring 20 and three connecting columns 21 arranged equidistantly on the outer circumferential wall of the circular ring 20, and the outer circumferential wall of the outer ring of the deep groove ball bearing 10 is fixedly connected with the inner circumferential wall of the circular ring 20.

[0030] Specifically, the damping device 3 comprises three damping rods 30 respectively movably connected with the ends of the connecting columns 21 away from the circular ring 20, each damping rod 30 is filled with non-Newtonian fluid, and the end of each connecting column 21 away from the circular ring 20 can move up and down in the damping rod 30. The connecting column 21 is arranged in the damping rod 30 to move up and down, and the bottom end of the damping rod 30 is in contact with the workbench surface.

[0031] Specifically, the damping rod 30 has an inner cavity, the opposite outer wall of the damping rod 30 is vertically provided with a chute 31 communicating with the inner cavity of the damping rod 30, the bottom of the inner cavity of the damping rod 30 is provided with a plurality of damping pads 32, the top of each damping pad 32 is movably provided with a first baffle 33, the top of the first baffle 33 is connected with a second spring 34, the top end of each damping rod 30 is movably provided with an end cover 35, the bottom of the end cover 35 is movably connected with the top of the second spring 34, and the end of the connecting column 21 away from the circular ring 20 penetrates the chute 31 and is lapped with the first baffle 33.

[0032] Specifically, the damping pads 32 are arranged in three pieces, which are sequentially stacked in the inner cavity of the damping rod 30, and each damping pad 32 is filled with a non-Newtonian fluid. The bottom end of each damping rod 30 is fixed with a base 38, and a suction cup is further arranged at the bottom of each base 38 to increase the adsorption force between the damping rod 30 and the workbench surface, and further fix the damping rod 30 on the workbench surface.

[0033] The method of the embodiment is as follows: the end of the connecting column 21 away from the circular ring 20 is slid into the cavity in the damping rod 30 from the top chute 31 of the damping rod 30, and is overlapped above the first baffle 33, then the end cap 35 is tightly covered on the top end of the connecting column 21, and then the three locking buckles 14 arranged in the damping bearing device 1 are fixed by the drill chuck, finally the damping rod 30 is fixed on the workbench surface, and the damping bearing device 1 and the connecting device 2 are driven to vibrate by the drill in the vibration engineering, so that the damping bearing device 1 and the connecting device 2 move up and down relative to the damping device 3, the connecting column 21 exerts pressure on the first baffle 33, thereby driving the extrusion of the damping pad 32, and further driving the up-and-down movement of the first spring 33, thereby relieving the vibration in the vertical direction.

[0034] Embodiment 2

[0035] As shown in Figure 3 , Figure 4 , Figure 5 The difference between embodiment 2 and embodiment 1 is that the second baffle 36 and the sliding block 37 are added in the damping rod 30 based on embodiment 1. Specifically, the damping device 3 further comprises a second baffle 36 movably arranged at the top end of the second spring 34, the top of the second spring 34 is fixedly connected with the bottom of the second baffle 36, the bottom of the second spring 34 is fixedly connected with the top of the first baffle 33, the sliding block 37 is slidably arranged on the inner wall of both ends of the upper end cavity of the second baffle 36, the inner sliding groove for the up-and-down sliding of the sliding block 37 is arranged on the inner wall of both ends of the upper end cavity, and the through hole 230 adapted to the sliding block 37 is arranged on the side wall of the end of the inner connecting column 220 away from the circular ring 20.

[0036] The method is implemented as follows: the end of the connecting column 21 away from the ring 20 is slid into the inner cavity of the damping rod 30 from the top groove 31 of the damping rod 30, the end cap 35 is tightly capped on the top end of the connecting column 21, the sliding block 37 is just clamped into the through hole 230, the bottom end of the connecting column 21 is overlapped with the second baffle 36, then the drilling chuck is fixed by the three buckles 14 arranged in the damping bearing device 1, finally the damping rod 30 is fixed on the workbench, and the drilling machine is used, the drilling machine drives the vibration of the damping bearing device 1 and the connecting device 2 in the vibration process, so that the damping bearing device 1 and the connecting device 2 move up and down relative to the damping device 3, at this time the inner connecting column 21 drives the up and down movement of the second baffle 36, the second spring 34 and the first baffle 33 by exerting pressure on the second baffle 36, and the second spring 34 is compressed to give damping pad pressure, and the vibration in the vertical direction is relieved.

[0037] Embodiment 3

[0038] As shown in Figure 4 , Figure 5 , embodiment 3 is based on embodiment 1 or embodiment 2, the connecting column 21 is arranged in a telescopic structure, the operability of the machining body space size during the operation of the drilling machine is improved, and the utilization rate of the non-Newtonian fluid triangular damper is further improved.

[0039] Specifically, each connecting column 21 includes an outer connecting column 210 connected with the outer circumferential wall of the ring 20 and an inner connecting column 220 which can be telescoped in the outer connecting column 210, and the end of each inner connecting column 220 away from the outer connecting column 210 can move up and down in the damping rod 30. Specifically, the outer connecting column 210 and the inner connecting column 220 are both provided with a limiting hole 240 matched thereon, and are limited by a taper pin or a buckle.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A non-Newtonian fluid triangular damper characterized by: The application relates to a damping bearing device (1), a connecting device (2) and a damping device (3); the damping bearing device (1) comprises a deep groove ball bearing (10), the inner wall ring of the inner ring of the deep groove ball bearing (10) is provided with an extension box (11), three hollow rubber shells (12) are equidistantly arranged in the extension box (11) along the circumferential direction, a first spring (13) is fixedly connected to the inner wall of each rubber shell (12) close to the outer ring of the deep groove ball bearing (10), the other end of each first spring (13) is connected with a lock catch (14) used for connecting a drilling machine drill chuck, the end, away from the first spring (13), of the lock catch (14) penetrates the rubber shell (12) and the extension box (11) in sequence, and the rubber shell (12) is filled with non-Newtonian fluid; the connecting device (2) is used for connecting the damping bearing device (1) and the damping device (3) and comprises a circular ring (20) and three connecting columns (21) equidistantly arranged on the outer ring circumferential wall of the circular ring (20), and the outer ring circumferential wall of the deep groove ball bearing (10) is fixedly connected with the inner circumferential wall of the circular ring (20); the damping device (3) comprises three damping rods (30) which are movably connected with the ends, away from the circular ring (20), of the connecting columns (21) respectively, and the damping rod (30) is filled with non-Newtonian fluid; and the end, away from the circular ring (20), of each connecting column (21) can move up and down in the damping rod (30). The damping rod (30) is provided with an inner cavity, the opposite outer wall of the damping rod (30) is vertically provided with a chute (31) which is communicated with the inner cavity of the damping rod (30), the inner cavity bottom of the damping rod (30) is provided with a plurality of damping pads (32), the top of the damping pad (32) is movably provided with a first baffle (33), the top of the first baffle (33) is connected with a second spring (34), the top end of each damping rod (30) is movably provided with an end cover (35), the bottom of the end cover (35) is movably connected with the top of the second spring (34), and the end, away from the circular ring (20), of each connecting column (21) penetrates the chute (31) and is lapped with the first baffle (33). The damping pad (32) is provided with three pieces which are sequentially stacked in the inner cavity of the damping rod (30), and each damping pad (32) is filled with non-Newtonian fluid. The bottom end of each damping rod (30) is fixedly provided with a base (38), and the bottom of each base (38) is provided with a suction disc.

2. A non-Newtonian fluid triangular damper according to claim 1, characterized in that: The damping device (3) further comprises a second baffle (36) which is movably arranged at the top end of the second spring (34), the top of the second spring (34) is fixedly connected with the bottom of the second baffle (36), the bottom of the second spring (34) is fixedly connected with the top of the first baffle (33), the inner walls of the two ends of the upper end cavity of the second baffle (36) are slidably provided with sliding blocks (37), the inner walls of the two ends of the upper end cavity are provided with inner chutes for the up-and-down sliding of the sliding blocks (37), and the side wall of the end, away from the circular ring (20), of each connecting column (21) is provided with a through hole (230) matched with the sliding block (37).

3. A non-Newtonian fluid triangular damper according to claim 1, characterized in that: Each connecting column (21) comprises an outer connecting column (210) connected with the outer circumferential wall of the ring (20) and an inner connecting column (220) telescopically movable in the outer connecting column (210), and the end of each inner connecting column (220) away from the outer connecting column (210) is movable up and down in the damping rod (30).

4. A non-Newtonian fluid triangular damper according to claim 3, characterized in that: The outer connecting column (210) and the inner connecting column (220) are provided with matched limiting holes (240), and are limited by taper pins or buckles.

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