CN218207737U

CN218207737U - Ball screw assembly

Info

Publication number: CN218207737U
Application number: CN202123011128.2U
Authority: CN
Inventors: 吴景中
Original assignee: QINGDAO BAIJIA PLASTIC CO Ltd
Current assignee: QINGDAO BAIJIA PLASTIC CO Ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2023-01-03
Anticipated expiration: 2031-12-02

Abstract

The utility model discloses a ball screw subassembly, including the lead screw, the nut, barrel one, barrel two, be equipped with a plurality of evenly distributed's thread groove on the lead screw, be equipped with evenly distributed's ball in the thread groove, nut swing joint is on the lead screw, and the ball is in the nut, the top at the nut is fixed to barrel one, barrel two is in the top of barrel one, the side of barrel one is equipped with the counter, and the counter shows for the liquid crystal instrument, the inside of barrel one is equipped with the cavity, be equipped with the fixed column in the cavity, the external diameter of fixed column is less than the internal diameter of barrel one, be equipped with the interstitial groove between fixed column and barrel one, the capacity of interstitial groove is 0.3ml, be equipped with into oil pipe on barrel one, it runs through the lateral wall of barrel one to advance oil pipe, the other end that advances oil pipe is equipped with the oil tank, be equipped with the connecting plate on advancing oil pipe, the connecting plate is fixed on the nut. The utility model discloses can relax the efficient and to adding lubricating grease between lead screw and the nut, prolong the life of part.

Description

Ball screw assembly

Technical Field

The utility model relates to an trade field of moulding plastics specifically is ball screw subassembly.

Background

Injection molded articles are increasingly widely used and occupy an important position in the manufacturing industry, and injection molding machines become important production equipment. In order to meet the requirements of energy conservation and environmental protection, an injection molding machine is driven by pure electricity, an injection molding motor and a ball screw for transmission belong to key parts, the ball screw is used as a key part of a machine and is high in value, but in actual use, due to high working load and high frequency, the service life of the injection molding motor can only reach two years generally, so that the maintenance cost of the machine is too high, lubricating grease is added between the screw and a nut to reduce the friction coefficient of the screw and the nut when the screw and the nut are used in the prior art, but people do not know when the lubricating grease is added between the screw and the nut, the parts are damaged when the screw and the nut are too late, the lubricating grease is wasted when the screw and the nut are too early, and the traditional method is disassembly, so that the process of the method is complicated, and the processing progress is delayed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the ball screw assembly comprises a screw rod, a nut, a first barrel and a second barrel, wherein a plurality of thread grooves which are uniformly distributed are formed in the screw rod, balls which are uniformly distributed are arranged in the thread grooves, the nut is movably connected to the screw rod, the balls are arranged in the nut, the first barrel is fixed to the top end of the nut, and the second barrel is arranged above the first barrel.

Furthermore, a counter is arranged on the side face of the first barrel body, the counter is displayed by a liquid crystal instrument, a cavity is arranged inside the first barrel body, a fixing column is arranged in the cavity, the outer diameter of the fixing column is smaller than the inner diameter of the first barrel body, a clearance groove is arranged between the fixing column and the first barrel body, and the capacity of the clearance groove is 0.3ml.

Further, an oil inlet pipe is arranged on the first cylinder body and penetrates through the side wall of the first cylinder body, an oil tank is arranged at the other end of the oil inlet pipe, a connecting plate is arranged on the oil inlet pipe, and the connecting plate is fixed on the nut.

Furthermore, a lifting column is arranged in the first barrel body, the interior of the lifting column is open, the opening of the lifting column faces downwards, the inner diameter of the lifting column is the same as that of the fixed column, an auxiliary spring is arranged in the lifting column, and the other end of the auxiliary spring is attached to the top end of the fixed column.

Furthermore, a first cylinder body and the side wall opposite to the oil inlet pipe are provided with an oil outlet pipe, a movable one-way valve is arranged inside the oil outlet pipe, and the oil outlet pipe extends to the thread groove.

Furthermore, L-shaped plates are symmetrically arranged on the side wall of the second barrel body, the other ends of the L-shaped plates are fixed on the nuts, the inside of the second barrel body is hollow, telescopic rods are arranged inside the second barrel body, and reset springs are arranged inside the second barrel body and on the telescopic rods.

Furthermore, two ends of the second cylinder body are provided with closed discs which are fixed in the second cylinder body, the end part of the telescopic rod is provided with a pressing plate which is in a circular design, the pressing plate is attached to the top end of the lifting column, and the other end of the telescopic rod is provided with a handle.

The utility model has the advantages that:

1: through the utility model discloses the barrel that sets up one, the counter, parts such as lift post can realize lubricating to lead screw and ball, wherein, enter into the clearance groove through making lubricated liquid, under the effect of pressure, make lubricated liquid enter into the thread groove through an oil pipe, can the lubrication between effectual improvement ball and the lead screw, the coefficient of friction has been reduced, the effectual life who prolongs ball screw, and the number of times of knowing the nut motion that can be accurate through the counter, come to add fixed lubricating grease through the ration volume of clearance groove, the waste of resource has also been reduced simultaneously to understanding interpolation lubricated time that can be timely.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of the integrated device in the ball screw assembly of the present invention;

fig. 2 is a side view of the integrated device in the ball screw assembly of the present invention;

FIG. 3 is an isometric view of an internal component of the barrel of the ball screw assembly of the present invention;

fig. 4 is an isometric view of the internal components of the second barrel of the ball screw assembly of the present invention.

In the figure: 1. a screw rod; 2. a nut; 3. a first cylinder body; 4. a second cylinder body; 5. a thread groove; 6. A ball bearing; 7. a counter; 8. fixing a column; 9. a clearance groove; 10. an oil inlet pipe; 11. an oil tank; 12. a lifting column; 13. an auxiliary spring; 14. an oil outlet pipe; 15. an L-shaped plate; 16. a telescopic rod; 17. a return spring; 18. a closing disk; 19. pressing a plate; 20. a handle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1 to 4:

the utility model provides a ball screw assembly, wherein,

the screw rod 1 is provided with a plurality of thread grooves 5 which are uniformly distributed, balls 6 which are uniformly distributed are arranged in the thread grooves 5, the nut 2 is movably connected to the screw rod 1, the balls 6 are arranged in the nut 2, the first cylinder 3 is fixed to the top end of the nut 2, the second cylinder 4 is arranged above the first cylinder 3, the side face of the first cylinder 3 is provided with a counter 7, the counter 7 is displayed by a liquid crystal instrument, a cavity is formed in the first cylinder 3, a fixing column 8 is arranged in the cavity, and the outer diameter of the fixing column 8 is smaller than the inner diameter of the first cylinder 3.

A clearance groove 9 is formed between the fixed column 8 and the first cylinder 3, the capacity of the clearance groove 9 is 0.3ml, an oil inlet pipe 10 is arranged on the first cylinder 3, the oil inlet pipe 10 penetrates through the side wall of the first cylinder 3, an oil tank 11 is arranged at the other end of the oil inlet pipe 10, a connecting plate is arranged on the oil inlet pipe 10 and fixed on the nut 2, a lifting column 12 is arranged in the first cylinder 3, the lifting column 12 is open, the opening of the lifting column 12 faces downwards, the inner diameter of the lifting column 12 is the same as that of the fixed column 8, an auxiliary spring 13 is arranged in the lifting column 12, the other end of the auxiliary spring 13 is attached to the top end of the fixed column 8, and an oil outlet pipe 14 is arranged on the side wall of the first cylinder 3 opposite to the oil inlet pipe 10.

The inside of oil outlet pipe 14 is equipped with movable check valve, and oil outlet pipe 14 extends to on the thread groove 5, the symmetry is equipped with L template 15 on the lateral wall of barrel two 4, the other end of L template 15 is fixed nut 2 is last, the inside of barrel two 4 is hollow design the inside of barrel two 4 is equipped with telescopic link 16 the inside of barrel two 4 and be equipped with reset spring 17 on the telescopic link 16, the both ends of barrel two 4 are equipped with closing disc 18, closing disc 18 is fixed in barrel two 4, the tip of telescopic link 16 is equipped with clamp plate 19, clamp plate 19 is circular shape design, and clamp plate 19 pastes the top of lift post 12, the other end of telescopic link 16 is equipped with handle 20.

Detailed methods of use and effects of the above examples: the counter 7 is arranged on the side surface of the nut 2, when the nut moves once, the number of liquid crystal instruments on the counter 7 is increased, after a certain number of times is reached, lubricating grease in the oil tank 11 enters the clearance groove 9 through the oil inlet pipe 10, the capacity of the clearance groove 9 is 0.3ml, the telescopic rod 16 is pressed downwards through the handle 20 by manpower, the pressing plate 19 connected with the end part of the telescopic rod 16 is attached to the lifting column 12, the lifting column 12 moves downwards under the action of pressure, the space of the clearance groove 9 is reduced, the lubricating oil in the clearance groove 9 is pressed into the oil outlet pipe 14 under the action of pressure, the one-way valve is opened, the lubricating oil enters the thread groove 5, and the ball 6 can be filled with the lubricating oil when the nut 2 moves.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Finally, it should be noted that: 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 modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The ball screw assembly comprises a screw rod (1), a nut (2), a first barrel body (3) and a second barrel body (4), wherein a plurality of thread grooves (5) which are uniformly distributed are formed in the screw rod (1), balls (6) which are uniformly distributed are arranged in the thread grooves (5), the nut (2) is movably connected to the screw rod (1), the balls (6) are arranged in the nut (2), the first barrel body (3) is fixed at the top end of the nut (2), and the second barrel body (4) is arranged above the first barrel body (3), the ball screw assembly is characterized in that a counter (7) is arranged on the side surface of the first barrel body (3), the counter (7) is displayed by a liquid crystal instrument, a cavity is formed in the first barrel body (3), a fixing column (8) is arranged in the cavity, the outer diameter of the fixing column (8) is smaller than the inner diameter of the first barrel body (3), a clearance groove (9) is formed between the fixing column (8) and the first barrel body (3), and the capacity of the clearance groove (9) is 0.3ml; the oil inlet pipe (10) is arranged on the first barrel (3), the oil inlet pipe (10) penetrates through the side wall of the first barrel (3), an oil tank (11) is arranged at the other end of the oil inlet pipe (10), a connecting plate is arranged on the oil inlet pipe (10), and the connecting plate is fixed to the nut (2).

2. The ball screw assembly according to claim 1, characterized in that a lifting column (12) is arranged in the first cylinder (3), the inner part of the lifting column (12) is open, the opening of the lifting column (12) faces downwards, the inner diameter of the lifting column (12) is the same as that of the fixed column (8), an auxiliary spring (13) is arranged in the lifting column (12), and the other end of the auxiliary spring (13) is attached to the top end of the fixed column (8).

3. The ball screw assembly according to claim 1, wherein an oil outlet pipe (14) is provided on a side wall of the cylinder one (3) opposite to the oil inlet pipe (10), a movable check valve is provided inside the oil outlet pipe (14), and the oil outlet pipe (14) extends to the screw groove (5).

4. The ball screw assembly according to claim 2, characterized in that the side wall of the second cylinder (4) is symmetrically provided with an L-shaped plate (15), the other end of the L-shaped plate (15) is fixed on the nut (2), the inside of the second cylinder (4) is hollow, a telescopic rod (16) is arranged inside the second cylinder (4), and a return spring (17) is arranged inside the second cylinder (4) and on the telescopic rod (16).

5. Ball screw assembly according to claim 4, characterized in that a closing disc (18) is provided at both ends of the cylinder body two (4), the closing disc (18) is fixed in the cylinder body two (4), a pressure plate (19) is provided at the end of the telescopic rod (16), the pressure plate (19) is of circular design, and the pressure plate (19) is attached to the top end of the lifting column (12), and a handle (20) is provided at the other end of the telescopic rod (16).