CN219101984U

CN219101984U - Ball circulation device of ball screw pair

Info

Publication number: CN219101984U
Application number: CN202222852605.6U
Authority: CN
Inventors: 孙振; 孙炳峰
Original assignee: Jinan Huaze Precision Machinery Co ltd
Current assignee: Jinan Huaze Precision Machinery Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-05-30
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a ball circulation device of a ball screw pair, which comprises a screw body and a nut, wherein a spiral groove is formed in the side wall of the screw body, balls are arranged in the spiral groove, a lubrication mechanism for lubricating the balls is arranged on the nut, the feeding mechanism comprises an oil inlet box fixedly connected to the side wall of the nut, an oil inlet is formed in the upper end of the oil inlet box, an oil storage cavity is formed in the inner side of the nut, the oil inlet box is communicated with the oil storage cavity through an oil leakage pipe, the oil storage cavity is communicated with the spiral groove through an oil dropping hole, and a placing groove is formed in the inner side of the nut. According to the utility model, the lubrication mechanism is arranged, and under the condition that a nut is not required to be disassembled, the balls in the spiral groove can be automatically lubricated, so that the practicability of the device is improved, the oil in the oil inlet box can be conveniently and directly checked during oil injection through the liquid level pipe, the waste caused by excessive oil seepage is avoided, and the practicability of the device is further improved.

Description

Ball circulation device of ball screw pair

Technical Field

The utility model relates to the technical field of ball screw pairs, in particular to a ball circulation device of a ball screw pair.

Background

The ball screw pair is also called a ball screw pair and a ball screw pair, is composed of a screw and a nut in a matching way, and is the transmission device with highest precision and most common use in the existing transmission machinery.

The conventional ball screw pair is widely applied to various industrial equipment and precise instruments, friction phenomenon is easy to occur on the inner wall of a ball and the inner wall of a screw in the ball screw pair in a long-term working state, the ball and the screw pair are required to be lubricated to avoid damage to the ball screw pair, the screw and a nut are required to be disassembled for lubricating the ball independently in the prior art, and the lubrication mode is time-consuming and labor-consuming, so that a ball circulating device of the ball screw pair is required to be designed to solve the problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a ball circulation device of a ball screw pair, which is provided with a lubrication mechanism, so that the balls in a spiral groove can be automatically lubricated under the condition that a nut is not required to be disassembled, the practicability of the device is improved, the oil quantity in an oil inlet box can be conveniently and directly checked during oil injection through a liquid level pipe, the waste caused by excessive oil quantity exudation is avoided, and the practicability of the device is further improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a ball circulating device of ball screw pair, includes screw body and nut, the helicla flute has been seted up to screw body's lateral wall, be equipped with the ball in the helicla flute, be equipped with the lubrication mechanism who is used for lubricated ball on the nut, feed mechanism includes the oil feed case of fixed connection at the nut lateral wall, the oil inlet has been seted up to the upper end of oil feed case, the inboard of nut is equipped with the oil storage chamber, the oil feed case passes through oil leakage pipe intercommunication with the oil storage chamber, the oil storage chamber passes through oil drip hole and helicla flute intercommunication, the standing groove has been seted up to the nut inboard, be equipped with the collection mechanism that is used for collecting the lubrication oil in the helicla flute in the standing groove.

Preferably, the collecting mechanism comprises a collecting frame fixedly connected in the placing groove, a filter screen is arranged in the collecting frame, a groove is formed in the side wall of the collecting frame, the spiral groove is communicated with the collecting frame through a plurality of through holes, and an extruding mechanism used for extruding lubricating oil in the collecting box is arranged on the side wall of the nut.

Preferably, the extruding mechanism comprises a collecting box fixedly connected to the side wall of the nut, the collecting box is communicated with the collecting box through a through hole, a piston is slidably connected to the inner side of the collecting box, a push rod is fixedly connected to the side wall of the piston, one side, far away from the piston, of the push rod penetrates through the nut to be fixedly connected with a push plate, the push plate is connected with the side wall of the nut through a bolt, and the collecting box is communicated with the oil inlet box through a connecting pipe.

Preferably, a cover plate is arranged at the upper end of the oil inlet box, the cover plate is installed with the oil inlet box through bolts, and the cover plate is arranged opposite to the oil inlet.

Preferably, the connecting pipe lateral wall fixedly connected with cardboard, cardboard lateral wall and nut lateral wall fixed connection.

Preferably, the side wall of the nut is provided with a shielding plate through a bolt, the shielding plate is arranged opposite to the collecting frame, and the side wall of the oil inlet box is provided with a liquid level pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. through setting up feed mechanism, can lubricate the ball in the helicla flute automatically after filling with lubricating oil in the oil feed case, need not dismantle the nut, just can lubricate the ball automatically to improved the practicality of device, can be convenient for directly look over the oil mass of oil feed incasement when the oiling through the liquid level pipe simultaneously, avoid the excessive exudation of oil mass to cause extravagant, and then improved the practicality of device.

2. Through setting up collection mechanism, can collect the residual unnecessary oil mass in the helicla flute, the filter screen can be filtered the lubricating oil in the collection frame, can realize the recycle to lubricating oil through extrusion mechanism to avoid the waste of lubricating oil, also need not oiling once more, further improved the practicality of device.

Drawings

Fig. 1 is a schematic diagram of a front view of a ball circulation device of a ball screw assembly according to the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: the device comprises a screw rod body 1, a nut 2, a spiral groove 3, a ball 4, a placing groove 5, a collecting frame 6, a filter screen 7, a groove 8, a through hole 9, a shielding plate 10, a piston 11, a collecting box 12, a push rod 13, a push plate 14, a clamping plate 15, a connecting pipe 16, an oil outlet pipe 17, an oil storage cavity 18, an oil leakage pipe 19, an oil inlet box 20, a liquid level pipe 21 and a cover plate 22.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1-3, a ball circulation device of ball screw pair, including screw body 1 and nut 2, screw groove 3 has been seted up to screw body 1's lateral wall, be equipped with ball 4 in the screw groove 3, be equipped with the lubrication mechanism that is used for lubricating ball 4 on the nut 2, feed mechanism includes the oil feed case 20 of fixed connection at nut 2 lateral wall, the oil inlet has been seted up to the upper end of oil feed case 20, the inboard of nut 2 is equipped with oil storage chamber 18, oil feed case 20 and oil storage chamber 18 pass through oil drain pipe 19 intercommunication, oil storage chamber 18 passes through oil drain hole and screw groove 3 intercommunication, standing groove 5 has been seted up to nut 2 inboard, liquid level pipe 21 adopts the communicating vessel principle, make the oil mass just can look over in the oil feed case 20 need not be opened, thereby the practicality of device has been improved, still can avoid too much from the oil feed case 20 oil inlet to ooze, cause the waste of lubricating oil.

Be equipped with the collection mechanism that is used for collecting the lubrication oil in the helicla flute 3 in the standing groove 5, collection mechanism includes the collection frame 6 of fixed connection in the standing groove 5, be equipped with filter screen 7 in the collection frame 6, the lateral wall of collecting the frame 6 is seted up flutedly 8, the helicla flute 3 communicates with collection frame 6 through a plurality of through-holes 9, the shape of filter screen 7 is unanimous with collection frame 6 here, filter the lubrication oil of drip in collecting frame 6, guarantee the cleanness of lubrication oil, the position of recess 8 can not make the lubrication oil in the collection frame 6 flow, only correspond filter screen 7 setting.

The lateral wall of nut 2 is equipped with the extrusion mechanism that is used for extruding the interior lubricating oil of collecting box 12, extrusion mechanism includes the collecting box 12 of fixed connection at the nut 2 lateral wall, collecting box 6 passes through hole 9 and collecting box 12 intercommunication, collecting box 12 inboard sliding connection has piston 11, the lateral wall fixedly connected with push rod 13 of piston 11, one side that piston 11 was kept away from to push rod 13 runs through nut 2 fixedly connected with push pedal 14, push pedal 14 passes through the bolt and is connected with the lateral wall of nut 2, collecting box 12 passes through connecting pipe 16 and oil feed case 20 intercommunication, promote push rod 13 through holding push pedal 14 and remove and drive piston 11 and remove the extrusion to the right, be convenient for through connecting pipe 16 with the lubricating oil extrusion of collecting box 12 in oil feed case 20.

In the utility model, the upper end of the oil inlet box 20 is provided with the cover plate 22, the cover plate 22 is arranged with the oil inlet box 20 through bolts, the cover plate 22 is arranged opposite to the oil inlet, and the cover plate 22 can be quickly detached from the oil inlet box 20 through bolts, so that the oil can be conveniently injected into the oil inlet box 20.

In the utility model, the clamping plate 15 is fixedly connected to the side wall of the connecting pipe 16, the side wall of the clamping plate 15 is fixedly connected with the side wall of the nut 2, and the connecting pipe 16 can be fixed through the clamping plate 15, so that the falling phenomenon of the connecting pipe 16 is prevented.

In the utility model, the side wall of the nut 2 is provided with the shielding plate 10 through bolts, the shielding plate 10 is arranged opposite to the collecting frame 6, and the side wall of the oil inlet box 20 is provided with the liquid level pipe 21.

When the device is used, as shown in fig. 1-3, when the balls 4 in the spiral groove 3 are required to be lubricated and oiled, the bolts on the cover plate 22 can be unscrewed firstly to take the cover plate 22 off the oil inlet box 20, lubricating oil is injected into the oil inlet box 20 through the oil inlet, the oil quantity in the oil inlet box 20 can be checked through the liquid level pipe 21 during oiling, the oiling is stopped when the oil is injected into a certain position, the cover plate 22 and the oil inlet box 20 are installed after the bolts are screwed, the lubricating oil in the oil inlet box 20 can enter the oil storage cavity 18 through the oil leakage pipe 19, and the lubricating oil reaching the oil storage cavity 18 slowly drops into the spiral groove 3 from the oil dropping hole, namely, the balls 4 in the spiral groove 3 are lubricated, and the balls 4 can be automatically lubricated without disassembling the nut 2, so that the practicability of the device is improved;

excessive lubricating oil in the spiral groove 3 flows into the collecting frame 6 through the plurality of through holes 9, the lubricating oil entering the collecting frame 6 is filtered under the action of the filter screen 7, the filtered lubricating oil can flow into the collecting box 12 through the oil outlet pipe 17, when the lubricating oil in the liquid level pipe 21 descends to the bottom, bolts on the push plate 14 can be screwed out, the push rod 13 is pulled firstly, the piston 11 is moved leftwards, the lubricating oil in the collecting frame 6 is supplemented into the collecting box 12 through the oil outlet pipe 17, then the push rod 13 is moved rightwards, the lubricating oil in the collecting box 12 is extruded into the oil inlet box 20 through the connecting pipe 16, the recycling of the lubricating oil is realized, waste is avoided, and the movement of the push plate 14 is limited by screwing the bolts after the extrusion is finished;

when needs are dismantled and are changed filter screen 7, the dismantlement between accessible unscrewing bolt realization shielding plate 10 and the nut 2 can directly take out filter screen 7 from standing groove 5 through recess 8, can dismantle filter screen 7, takes out the impurity in the filter screen 7, pushes new filter screen 7 into collecting frame 6 in standing groove 5, install shielding plate 10 and nut 2 at the screw bolt can.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a ball circulating device of ball screw pair, includes screw body (1) and nut (2), its characterized in that, helical groove (3) have been seted up to the lateral wall of screw body (1), be equipped with ball (4) in helical groove (3), be equipped with the lubrication mechanism who is used for lubricated ball (4) on nut (2), lubrication mechanism includes oil feed case (20) of fixed connection at nut (2) lateral wall, the oil inlet has been seted up to the upper end of oil feed case (20), the inboard of nut (2) is equipped with oil storage chamber (18), oil feed case (20) and oil storage chamber (18) are through leaking oil pipe (19) intercommunication, oil storage chamber (18) are through oil drain hole and helical groove (3) intercommunication, standing groove (5) have been seted up to nut (2) inboard, be equipped with the collection mechanism that is used for collecting lubricating oil in helical groove (3) in standing groove (5).

2. The ball circulation device of the ball screw pair according to claim 1, wherein the collecting mechanism comprises a collecting frame (6) fixedly connected in the placing groove (5), a filter screen (7) is arranged in the collecting frame (6), a groove (8) is formed in the side wall of the collecting frame (6), the spiral groove (3) is communicated with the collecting frame (6) through a plurality of through holes (9), and an extruding mechanism for extruding lubricating oil in the collecting box (12) is arranged on the side wall of the nut (2).

3. The ball circulation device of the ball screw pair according to claim 2, wherein the extrusion mechanism comprises a collecting box (12) fixedly connected to the side wall of the nut (2), the collecting box (6) is communicated with the collecting box (12) through a through hole (9), a piston (11) is slidably connected to the inner side of the collecting box (12), a push rod (13) is fixedly connected to the side wall of the piston (11), a push plate (14) is fixedly connected to one side, far away from the piston (11), of the push rod (13) through the nut (2), the push plate (14) is connected to the side wall of the nut (2) through a bolt, and the collecting box (12) is communicated with an oil inlet box (20) through a connecting pipe (16).

4. A ball circulation device of a ball screw assembly according to claim 3, wherein a cover plate (22) is arranged at the upper end of the oil inlet box (20), the cover plate (22) is mounted with the oil inlet box (20) through bolts, and the cover plate (22) is arranged opposite to the oil inlet.

5. The ball circulation device of the ball screw assembly according to claim 4, wherein a clamping plate (15) is fixedly connected to the side wall of the connecting pipe (16), and the side wall of the clamping plate (15) is fixedly connected with the side wall of the nut (2).

6. The ball circulation device of the ball screw assembly according to claim 5, wherein a shielding plate (10) is mounted on the side wall of the nut (2) through bolts, the shielding plate (10) is opposite to the collecting frame (6), and a liquid level pipe (21) is arranged on the side wall of the oil inlet box (20).