CN213451477U

CN213451477U - non-Newtonian fluid triangular shock absorber

Info

Publication number: CN213451477U
Application number: CN202022336393.7U
Authority: CN
Inventors: 沈迪; 张霖霖
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-15
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a non-Newtonian fluid triangular shock absorber, which comprises a shock absorbing bearing device, a connecting device and a shock absorbing device; the vibration reduction bearing device comprises a deep groove ball bearing, an extension box body, a first spring and a lock catch, is used for being connected with a drill chuck of the drilling machine and plays a vibration reduction effect in the horizontal direction under the condition of ensuring the normal work of the drilling machine; the connecting device comprises a circular ring, an outer connecting column and an inner connecting column, and outputs the vertical movement effect under the condition of ensuring the normal work of the drilling machine and accurately controls the placement space of the processing body; the vibration damping device comprises a vibration damping rod, a vibration damping pad, a first baffle, a second spring and an upper end cover, and the vibration damping device reduces the vibration in the vertical direction and ensures good ground gripping performance under the condition of ensuring the normal work of the drilling machine. The utility model discloses alleviated the vibration of horizontal direction and vertical direction, improved operator's use and felt, can be used to the damping of domestic electric drill and drilling machine equipment, the suitability is strong, usable wide-spread.

Description

non-Newtonian fluid triangular shock absorber

Technical Field

The utility model relates to a damping field especially relates to a non-Newtonian fluid triangular vibration absorber.

Background

Drilling is commonly carried out in various machining operations, and the drilling operation has the characteristics of large cutting amount, difficult chip removal and easy generation of vibration, so that discomfort is easily brought to an operator, the accuracy of related machined parts is also influenced, and even more, safety accidents are brought due to breakage and flying of a drill bit, so that the reduction of the vibration of drilling equipment is an important task in the field of current machining.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a non-Newtonian fluid triangular shock absorber can reduce horizontal plane and vibration from top to bottom under the condition of guaranteeing the normal work of drilling equipment, improves operator's sense of use.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: a non-Newtonian fluid triangular shock absorber comprises a shock absorbing bearing device, a connecting device and a shock absorbing device;

the damping bearing device comprises a deep groove ball bearing, an extension box body is arranged on the inner wall of an inner ring of the deep groove ball bearing in a surrounding mode, three hollow rubber shells are arranged in the extension box body at equal intervals along the circumferential direction, a first spring is fixedly connected to the inner wall, close to the outer ring of the deep groove ball bearing, in each rubber shell, the other end of each first spring is connected with a lock catch used for being connected with a drill chuck of a drilling machine, one end, far away from the first spring, of each lock catch sequentially penetrates through the rubber shells and the extension box body, and non-Newtonian fluid is;

the connecting device is used for connecting the vibration damping bearing device and the vibration damping device and comprises a circular ring and three connecting columns arranged on the peripheral wall of the outer ring of the circular ring at equal intervals, and the peripheral wall of the outer ring of the deep groove ball bearing is fixedly connected with the inner peripheral wall of the circular ring;

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

As a further improvement, the damping pole has interior cavity, the vertical spout that is linked together with damping pole interior cavity that is provided with of the relative outer wall of damping pole, the interior cavity bottom of damping pole is provided with polylith damping pad, the top level activity of damping pad is provided with first baffle, the top of first baffle is connected with the second spring, and the top of every damping pole is all movable and is provided with the end cover, the bottom of end cover and the top swing joint of second spring, the one end that the ring was kept away from to every spliced pole all passes spout and first baffle overlap joint.

As a further improvement, the vibration damper further comprises a second baffle plate arranged at the top end of the second spring in a horizontal movable manner, the top of the second spring is fixedly connected with the bottom of the second baffle plate, the bottom of the second spring is fixedly connected with the top of the first baffle plate, a slider is arranged on the inner wall of each of the two ends of the upper end cavity of the second baffle plate in a sliding manner, an inner chute for the slider to slide up and down is arranged on the inner wall of each of the two ends of the upper end cavity, and a through hole matched with the slider is formed in the side wall of one end, far away from the ring, of the inner connecting column.

As the further improvement of the utility model, every spliced pole includes the outer joint pole of being connected with ring outer lane perisporium and the inner connection post that can stretch out and draw back in the outer joint pole, and the one end that outer joint pole was kept away from to every inner connection post all can be in the damping rod up-and-down motion.

As a further improvement, the outer connecting column and the inner connecting column are provided with the matched spacing holes and are limited by the taper pins or the buckles.

As a further improvement, the damping pad is set to three, and the damping pad is stacked in the inner cavity of the damping rod in sequence, and non-Newtonian fluid is filled in each damping pad.

As a further improvement of the utility model, the bottom end of each damping rod is fixed with a base.

As a further improvement of the utility model, the bottom of each base is provided with a sucker.

Compared with the prior art, the utility model, following beneficial effect has:

1. through the connection of the lock catch to the drill chuck hole, the drill machine relieves the vibration in the horizontal direction under the action of the first spring connected with the lock catch in the vibration process; one end of the connecting column moves up and down in the vibration damping rod, so that the vibration in the vertical direction is relieved; the non-Newtonian fluid filled in the rubber shell and the damping rod plays a role in reducing the speed of the rapidly-running drilling machine according to the characteristics of the non-Newtonian fluid. The utility model discloses the vibration of horizontal direction and vertical direction has been alleviated under the circumstances of guaranteeing drilling equipment normal work, has improved operator's use and has felt.

2. By arranging the telescopic connecting column, the operability of the drilling machine on the size of the space of the machined body during working is improved, and the utilization rate of the non-Newtonian fluid triangular shock absorber is further improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the middle vibration damping bearing device of the present invention;

FIG. 3 is a schematic view of the internal structure of the damping rod of the present invention;

FIG. 4 is a schematic view of the connecting device of the present invention;

FIG. 5 is a cross-sectional view of the connecting column of the present invention;

in the drawings: 1. a vibration damping bearing device; 10. a deep groove ball bearing; 11. stretching the box body; 12. a rubber housing; 13. a first spring; 14. locking;

2. a connecting device; 20. a circular ring; 21. connecting columns; 210. an outer connecting column; 220. an inner connecting post; 230. a through hole; 240. a limiting hole;

3. a vibration damping device; 30. a damper rod; 31. a chute; 32. a vibration damping pad; 33. a first baffle plate; 34. a second spring; 35. an end cap; 36. a second baffle; 37. a slider; 38. a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and fig. 2, the utility model relates to a non-newton fluid triangular vibration absorber, which comprises a vibration absorbing bearing device 1, a connecting device 2 and a vibration absorbing device 3; the damping bearing device 1 comprises a deep groove ball bearing 10, an extension box body 11 is arranged on the inner wall of an inner ring of the deep groove ball bearing 10 in a surrounding mode, three hollow rubber shells 12 are arranged in the extension box body 11 at equal intervals along the circumferential direction, a first spring 13 is fixedly connected to the inner wall, close to 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 used for being connected with a drill chuck of a drilling machine, one end, far away from the first spring 13, of each lock catch 14 sequentially penetrates through the rubber shells 12 and the extension box body 11, non-Newtonian fluid is filled in each rubber shell 12, the damping bearing device 1 is matched and connected with a drill chuck hole of drilling equipment through the lock catches 14, the extension box body 11 and the deep groove ball bearing 10 are integrated, the extension box body 11 is internally provided with three damping, the locking catch 14 of the damper bearing device 1 can be inserted into or removed from the device by different rotational directions. The non-Newtonian fluid filled in the rubber shell 12 plays a role in reducing the speed of a rapidly-running drilling machine according to the characteristics of the non-Newtonian fluid, and in addition, the drilling machine is connected with a drill chuck hole through the lock catch 14, and the vibration in the horizontal direction is relieved under the action of the first spring 13 connected with the lock catch 14 in the vibration process of the drilling machine.

Specifically, the connecting device 2 is used for connecting the vibration damping bearing device 1 and the vibration damping device 3, and comprises three connecting posts 21 arranged on the circumferential wall of the outer ring of the ring 20 and the circumferential wall of the outer ring of the ring 20 at equal intervals, and the circumferential wall of the outer ring of the deep groove ball bearing 10 is fixedly connected with the inner circumferential wall of the ring 20.

Specifically, the damping device 3 comprises three damping rods 30 movably connected with one ends of the connecting columns 21 far away from the circular ring 20, non-Newtonian fluid is filled in each damping rod 30, and one end of each connecting column 21 far away from the circular ring 20 can move up and down in each damping rod 30. The connecting column 21 is arranged in the vibration damping rod 30 to move up and down, and the bottom end of the vibration damping rod 30 is contacted with the working table.

Specifically, damping rod 30 has interior cavity, and damping rod 30's the vertical spout 31 that is linked together with damping rod 30 interior cavity that is provided with of relative outer wall, damping rod 30's interior cavity bottom is provided with polylith damping pad 32, damping pad 32's top horizontal activity is provided with first baffle 33, the top of first baffle 33 is connected with second spring 34, and the equal activity in top of every damping rod 30 is provided with end cover 35, the bottom of end cover 35 and the top swing joint of second spring 34, the one end that ring 20 was kept away from to spliced pole 21 passes spout 31 and first baffle 33 overlap joint.

Specifically, the damping pad 32 is provided with three pieces, which are respectively and sequentially stacked in the inner cavity of the damping rod 30, and each damping pad 32 is filled with non-newtonian fluid. The bottom of each damping rod 30 is fixed with a base 38, and further the bottom of each base 38 is provided with a sucker, so that the adsorption force between the damping rods 30 and the working table is increased, and the damping rods 30 are further fixed on the working table.

The implementation method of the embodiment comprises the following steps: draw into the cavity in the damping rod 30 from the top spout 31 of damping rod 30 with the one end that the spliced pole 21 was kept away from ring 20, and the overlap joint is in the top of first baffle 33, cover the top of spliced pole 21 tightly with end cover 35 again, then it is fixed with the 14 rig drill chuck of three hasps that set up in the damping bearing device 1, fix damping rod 30 on table surface at last, the use of cooperation rig, the rig is in the engineering of vibration, drive the vibration of damping bearing device 1 and connecting device 2, thereby make damping bearing device 1 and connecting device 2 move from top to bottom for damping device 3, spliced pole 21 is through exerting pressure to first baffle 33, thereby drive the extrusion of damping pad 32, and then drive the up-and-down motion of first spring 33, the vibration of vertical direction has been alleviated.

Example 2

As shown in fig. 3, 4, and 5, embodiment 2 is different from embodiment 1 in that, on the basis of embodiment 1, a second baffle 36 and a slider 37 are added in the damping rod 30, specifically, the damping device 3 further includes a second baffle 36 horizontally movably disposed at the top end of the second spring 34, the top of the second spring 34 is fixedly connected to the bottom of the second baffle 36, the bottom of the second spring 34 is fixedly connected to the top of the first baffle 33, sliders 37 are slidably disposed on inner walls of two ends of an upper cavity of the second baffle 36, inner sliding grooves for the sliders 37 to slide up and down are disposed on inner walls of two ends of the upper cavity, and a through hole 230 adapted to the sliders 37 is disposed on a side wall of one end of the inner connecting column 220, which is far away from the ring 20.

The implementation method of the embodiment comprises the following steps: one end of the connecting post 21 far away from the circular ring 20 is drawn into the inner cavity of the damping rod 30 from the top end sliding groove 31 of the damping rod 30, the end cover 35 covers the top end of the connecting post 21 tightly, the sliding block 37 is just clamped into the through hole 230, the bottom end of the connecting post 21 is lapped with the second baffle 36, then the three lock catches 14 arranged in the vibration damping bearing device 1 are used for fixing the drill chuck of the drilling machine, finally the vibration damping rod 30 is fixed on the working table surface, the drilling machine is matched with the drilling machine for use, the drilling machine drives the vibration damping bearing device 1 and the connecting device 2 to vibrate in the vibration process, thereby moving the damper bearing device 1 and the coupling device 2 up and down relative to the damper device 3, while the inner coupling post 21 is engaged with the second striker 36 by applying pressure thereto, thereby driving the second baffle 36, the second spring 34 and the first baffle 33 to move up and down, compressing the second spring 34 to give pressure to the damping pad, and relieving the vibration in the vertical direction.

Example 3

As shown in fig. 4 and 5, in embodiment 3, in addition to embodiment 1 or embodiment 2, the connecting column 21 is provided with a telescopic structure, so that the operability of the drilling machine on the size of the processed body space during operation is improved, and the utilization rate of the non-newtonian fluid triangular vibration damper is further improved.

Specifically, 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 capable of extending and contracting in the outer connecting column 210, and one end of each inner connecting column 220 far 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 provided with adaptive limiting holes 240, and are limited by taper pins or buckles.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A non-Newtonian fluid delta shock absorber, comprising: comprises 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), an extension box body (11) is arranged on the inner wall of an inner ring of the deep groove ball bearing (10) in a surrounding mode, three hollow rubber shells (12) are arranged in the extension box body (11) at equal intervals along the circumferential direction, a first spring (13) is fixedly connected to the inner wall, close to the outer ring of the deep groove ball bearing (10), of each rubber shell (12), a lock catch (14) used for being connected with a drill chuck is connected to the other end of each first spring (13), one end, far away from the first spring (13), of each lock catch (14) penetrates through the rubber shells (12) and the extension box body (11) in sequence, and non-Newtonian fluid is filled in each rubber shell (;

the connecting device (2) is used for connecting the vibration reduction bearing device (1) and the vibration reduction device (3), and comprises a circular ring (20) and three connecting columns (21) arranged on the peripheral wall of the outer ring of the circular ring (20) at equal intervals, wherein the peripheral wall of the outer ring of the deep groove ball bearing (10) is fixedly connected with the inner peripheral wall of the circular ring (20);

the damping device (3) comprises three damping rods (30) which are movably connected with one ends of the connecting columns (21) far away from the circular rings (20), non-Newtonian fluid is filled in each damping rod (30), and one end of each connecting column (21) far away from the circular rings (20) can move up and down in each damping rod (30).

2. A non-newtonian fluid delta shock absorber according to claim 1, wherein: damping rod (30) have interior cavity, and the relative outer wall of damping rod (30) is vertical to be provided with spout (31) that are linked together with damping rod (30) interior cavity, the interior cavity bottom of damping rod (30) is provided with polylith damping pad (32), the top horizontal activity of damping pad (32) is provided with first baffle (33), the top of first baffle (33) is connected with second spring (34), and the top of every damping rod (30) is all movable and is provided with end cover (35), the bottom of end cover (35) and the top swing joint of second spring (34), the one end that ring (20) were kept away from in every spliced pole (21) is passed spout (31) and first baffle (33) overlap joint.

3. A non-newtonian fluid delta shock absorber according to claim 2, wherein: damping device (3) still include second baffle (36) that the level activity in second spring (34) top set up, the top of second spring (34) and the bottom fixed connection of second baffle (36), the bottom of second spring (34) and the top fixed connection of first baffle (33), it is provided with slider (37) to slide on the both ends inner wall of second baffle (36) upper end cavity, is provided with on the both ends inner wall of confession slider (37) gliding interior spout from top to bottom, and the one end lateral wall that ring (20) were kept away from in every spliced pole (21) is provided with through-hole (230) with slider (37) looks adaptation.

4. A non-newtonian fluid delta shock absorber according to claim 1, wherein: each connecting column (21) comprises an outer connecting column (210) connected with the peripheral wall of the outer ring of the ring (20) and an inner connecting column (220) capable of stretching in the outer connecting column (210), and one end, far away from the outer connecting column (210), of each inner connecting column (220) can move up and down in the vibration damping rod (30).

5. A non-newtonian fluid delta shock absorber according to claim 4, wherein: the outer connecting column (210) and the inner connecting column (220) are both provided with matched limiting holes (240) and are limited through taper pins or buckles.

6. A non-newtonian fluid delta shock absorber according to claim 2, wherein: the damping device is characterized in that three damping pads (32) are arranged and are respectively and sequentially stacked in the inner cavity of the damping rod (30), and non-Newtonian fluid is filled in each damping pad (32).

7. A non-newtonian fluid delta shock absorber according to claim 2, wherein: the bottom end of each damping rod (30) is fixed with a base (38).

8. A non-newtonian fluid delta shock absorber according to claim 7, wherein: the bottom of each base (38) is provided with a sucker.