Ball screw bearing with dustproof structure

Abstract

The utility model belongs to the field of ball screws, and particularly relates to a ball screw bearing with a dustproof structure, which comprises a support component, a dustproof component is fixedly connected to the side surface of the support component, and a bearing component is in threaded connection to the side surface of the dustproof component; through the structural design that the driving motor drives the threaded block to perform threaded movement on the screw rod body and the stretching cover is driven by the sliding block to slide on the sliding rail, the function that the stretching cover can automatically and efficiently perform follow-up stretching along with the threaded movement direction of the screw rod body and the threaded block is achieved; the problems that the position of the stretching cover needs to be manually adjusted and tedious correction needs to be conducted are solved, the ball screw protection efficiency of the stretching cover is improved, through the structural design that the limiters are arranged at the two ends of the sliding rail, the problems that the sliding block cannot move within a specific range and exceeds the set limiting position are solved, and the safety is improved. And the adaptability of the working efficiency and the production quality function is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ball screw, concretely is a ball screw bearing with dustproof structure. BACKGROUND

[0002] Ball screw is the ideal product of converting rotary motion into linear motion, or converting linear motion into rotary motion, is the most commonly used transmission element on tooling machinery and precision machinery, has the characteristics of high precision, reversibility and high efficiency, because of having very small frictional resistance, ball screw is widely used in various industrial equipment and precision instruments. And ball screw usually includes two kinds of circulation mode, the ball is called external circulation in the circulation process and the ball is always in contact with the screw, and is called internal circulation. Ball screw and other rolling friction transmission elements, as long as abrasive particles and chemical active substances are avoided to enter, these elements can be considered to work almost without damage. But if dirt falls on the raceway, or dirty lubricating oil is used, not only will hinder the normal operation of the ball, but also will make the wear increase sharply.

[0003] Prior art, such as: CN209621985U a ball screw with dustproof structure, the dust cover in the equipment can be telescopic, when the ball screw is not working, the dust cover is sleeved between the nut pair and the screw main bearing, at the same time, prevent dust from entering the nut pair and the screw, when working, the dust cover is retracted to the limiting support on one side of the nut pair, has a certain length, ensure that the nut pair and the nut pair around the screw is dustproof during operation.

[0004] But the device still has certain insufficient when using, although the protective cover in the equipment can be telescopic, but cannot move synchronously with the screw rod, and needs to be adjusted manually, greatly reduces the work efficiency and dustproof effect, the screw rod is not provided with the device for limiting its movement when running, and the running range is exceeded, causing the damage of screw rod assembly.

[0005] Therefore, aiming at the above problems, a ball screw bearing with dustproof structure is provided. Utility model content

[0006] In order to make up for the deficiency of prior art, the protective cover in the equipment can be telescopic, but cannot move synchronously with the screw rod, and needs to be adjusted manually, greatly reduces the work efficiency and dustproof effect, the screw rod is not provided with the device for limiting its movement when running, and the running range is exceeded, causing the damage of screw rod assembly, the utility model provides a ball screw bearing with dustproof structure.

[0007] The utility model discloses a ball screw bearing with dustproof structure, including support subassembly, the side fixed connection of support subassembly has dustproof subassembly, the side screw thread connection of dustproof subassembly has bearing assembly,

[0008] The dustproof assembly includes a supporting frame, the side of the supporting frame is fixedly connected with a mounting plate, the side of the mounting plate is fixedly connected with a supporting plate, the side of the supporting plate is provided with a motor, the output end of the motor is fixedly connected with a lead screw lever body, the side of the lead screw lever body is provided with a blocking plate, the side of the blocking plate is fixedly connected with a stretching cover, the side of the supporting frame is fixedly connected with a sliding rail, the side of the sliding rail is slidably connected with a sliding block, the side of the sliding block is fixedly connected with the stretching cover, the side of the supporting frame is fixedly connected with a limit stop, and the limit stop is provided with two.

[0009] The bearing assembly includes a threaded block, a threaded hole is formed in the interior of the threaded block, and a first steel ring is arranged in the interior of the threaded hole.

[0010] Preferably, the lead screw lever body penetrates through the blocking plate, the side of the blocking plate is provided with a base, and the lead screw lever body is arranged in the interior of the base.

[0011] Preferably, the lead screw lever body is screw-connected in the interior of the threaded block, and the threaded block penetrates through the stretching cover.

[0012] Preferably, the sliding rail is provided with two, and the sliding block is provided with four.

[0013] Preferably, the interior of the first steel ring is provided with a steel ball, the steel ball is provided with a plurality of steel balls, and the interior of the steel ball is provided with a second steel ring.

[0014] Preferably, the interior of the second steel ring is provided with an inner ring, the side of the inner ring is fixedly connected with a connecting rod, and the side of the connecting rod is fixedly connected with a connecting seat.

[0015] Preferably, the support subassembly includes an aluminum profile, and the side of the aluminum profile is fixedly connected with a first clamping plate and a second clamping plate.

[0016] Preferably, the aluminum profile, the first clamping plate and the second clamping plate are provided with two.

[0017] The utility model discloses the beneficial effect is:

[0018] 1. The utility model discloses a structure design that driving motor drives screw block to move on the screw lever body and makes the stretch cover be slid with the sliding block on the slide rail, realizes that the stretch cover can automatically and efficiently follow the orientation of screw block of screw lever body and moves the function of telescopic follow-up, solves the problem of manual regulation stretch cover position and complicated correction, improves the efficiency of stretch cover protection to the ball screw,

[0019] 2. The utility model discloses a structure design that limiting stopper is set at both ends of slide rail, realizes the range of mechanical movement can be controlled and limited, prevents machine tool from exceeding the prescribed boundary, thereby protects the safety of machine tool and workpiece, limiting stopper can also be used to control the running speed of mechanical device, guarantees the stability and accuracy of whole mechanical system, solves the problem that the sliding block can not move in a specific range and exceeds the set limit position, improves the adaptability of work efficiency and production quality function. ACCURACY

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is the whole structure schematic diagram of the utility model,

[0022] Figure 2 It is the internal structure schematic diagram of the utility model,

[0023] Figure 3 It is the stretch cover loading structure schematic diagram of the utility model,

[0024] Figure 4 It is the bearing assembly exploded structure schematic diagram of the utility model.

[0025] In the drawing: 1, support assembly;101, aluminum profile;102, first clamping plate;103, second clamping plate;2, dustproof assembly;201, bearing frame;202, mounting plate;203, bearing plate;204, motor;205, limiting stopper;206, slide rail;207, screw lever body;208, barrier branch plate;209, base;210, stretch cover;211, sliding block;3, bearing assembly;301, screw block;302, threaded hole;303, first steel ring;304, steel ball;305, second steel ring;306, link rod;307, link seat;308, inner ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application. Figures 1-4 The present application is further described in detail,

[0028] The embodiment of the present application discloses a ball screw bearing with a dustproof structure. Referring to Figures 1-4 A ball screw bearing with a dustproof structure comprises a support assembly 1, the side surface of the support assembly 1 is fixedly connected with a dustproof assembly 2, and the side surface of the dustproof assembly 2 is threadedly connected with a bearing assembly 3.

[0029] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 The dustproof assembly 2 comprises a containing frame 201, the side surface of the containing frame 201 is fixedly connected with a mounting plate 202, the side surface of the mounting plate 202 is fixedly connected with a supporting plate 203, the side surface of the supporting plate 203 is provided with a motor 204, the output end of the motor 204 is fixedly connected with a screw lever body 207, the side surface of the screw lever body 207 is provided with a blocking branch plate 208, the side surface of the blocking branch plate 208 is fixedly connected with a stretching cover 210, the side surface of the containing frame 201 is fixedly connected with a sliding rail 206, the side surface of the sliding rail 206 is slidingly connected with a sliding block 211, the side surface of the sliding block 211 is fixedly connected with the stretching cover 210, the side surface of the containing frame 201 is fixedly connected with a limit stop 205, the limit stop 205 is provided with two, through the structural design that the limit stop 205 is arranged at both ends of the sliding rail 206, the range of mechanical movement can be controlled and limited, the machine tool is prevented from exceeding the specified boundary, thereby protecting the safety of the machine tool and the workpiece, the limit stop 205 can also be used for controlling the running speed of the mechanical device, ensuring the stability and accuracy of the entire mechanical system, solving the problems that the sliding block 211 cannot move within a specific range and exceeds the set limit position, improving the adaptability of work efficiency and production quality functions.

[0030] The bearing assembly 3 comprises a threaded block 301, a threaded hole 302 is formed in the interior of the threaded block 301, a first steel ring 303 is arranged in the interior of the threaded hole 302, the side surface of the threaded block 301 can load the articles to be moved, and the threaded block 301 has large bearing capacity and stable operation.

[0031] The screw lever body 207 penetrates the blocking support plate 208, the side surface of the blocking support plate 208 is provided with a base 209, the screw lever body 207 is arranged in the inside of the base 209, and the blocking support plate 208 can protect the screw lever body 207 from damage by the goods.

[0032] The screw lever body 207 is threadedly connected in the inside of the threaded block 301, the threaded block 301 penetrates the extension cover 210, the threaded block 301 is driven by the driving motor 204 to threadedly move on the screw lever body 207, and the extension cover 210 is driven by the sliding block 211 to slide on the sliding rail 206, so that the extension cover 210 can automatically and efficiently follow the extension and contraction function of the screw lever body 207 and the threaded block 301, the problem of manually adjusting the position of the extension cover 210 and performing tedious correction is solved, and the efficiency of the extension cover 210 for protecting the ball screw is improved.

[0033] The sliding rail 206 is provided with two sliding rails, and the sliding block 211 is provided with four sliding blocks, so that the stability of the goods running is further improved.

[0034] Referring to Figure 1 , Figure 2 and Figure 4 , the inside of the first steel ring 303 is provided with a steel ball 304, the steel ball 304 is provided with a plurality of steel balls, the inside of the steel ball 304 is provided with a second steel ring 305, and the main function of the steel ball 304 is to transmit the load of the rotating shaft to the inner and outer rings of the bearing, reduce the friction, reduce the wear, and prolong the service life of the bearing.

[0035] The inside of the second steel ring 305 is provided with an inner ring 308, the side surface of the inner ring 308 is fixedly connected with a connecting rod 306, the side surface of the connecting rod 306 is fixedly connected with a connecting seat 307, and the connecting rod 306 and the connecting seat 307 are arranged to protect the threaded block 301 to move smoothly on the screw lever body 207.

[0036] The support assembly 1 comprises an aluminum profile 101, the side surface of the aluminum profile 101 is fixedly connected with a first clamping plate 102 and a second clamping plate 103, and the aluminum profile 101 has better appearance and corrosion resistance.

[0037] The aluminum profile 101, the first clamping plate 102 and the second clamping plate 103 are provided with two first clamping plates 102 and second clamping plates 103, and the first clamping plate 102 and the second clamping plate 103 increase the stability of the aluminum profile 101.

[0038] Working principle: through the use of motor 204 drive screw lever body 207 rotation, while the screw lever body 207 will be with the screw hole 302 inside the screw block 301 thread rotation, rotation first steel ring 303, steel ball 304 and the second steel ring 305 composition bearing, the main function of the internal steel ball 304 is to rotate the load transmission shaft bearing inner and outer ring, while reducing friction, reduce wear and tear, improve the service life of the bearing, and through the screw hole 302 rotation can drive the sliding block 211 on the slide rail 206 sliding, and the side of the slide rail 206 fixed, said extension cover 210 will be pulled, so as to achieve the protection of the ball bearing at all times from the influence of the outside dirt.

[0039] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A ball screw bearing having a dust-proof structure, characterized by: Including support assembly (1), the side of support assembly (1) is fixedly connected with dustproof assembly (2), the side of dustproof assembly (2) is threadedly connected with bearing assembly (3); The dustproof assembly (2) includes a supporting frame (201), the side of the supporting frame (201) is fixedly connected with a mounting plate (202), the side of the mounting plate (202) is fixedly connected with a supporting plate (203), the side of the supporting plate (203) is provided with a motor (204), the output end of the motor (204) is fixedly connected with a lead screw lever body (207), the side of the lead screw lever body (207) is provided with a blocking support plate (208), the side of the blocking support plate (208) is fixedly connected with a stretching cover (210), the side of the supporting frame (201) is fixedly connected with a sliding rail (206), the side of the sliding rail (206) is slidably connected with a sliding block (211), the side of the sliding block (211) is fixedly connected with the stretching cover (210), the side of the supporting frame (201) is fixedly connected with a limit stop (205), the limit stop (205) is provided with two; The bearing assembly (3) includes a threaded block (301), a threaded hole (302) is formed in the interior of the threaded block (301), and a first steel ring (303) is arranged in the interior of the threaded hole (302).

2. The ball screw bearing with a dustproof structure according to claim 1, characterized in that: The lead screw lever body (207) penetrates through the blocking support plate (208), the side of the blocking support plate (208) is provided with a base (209), and the lead screw lever body (207) is arranged in the interior of the base (209).

3. The ball screw bearing with a dustproof structure according to claim 1, characterized in that: The lead screw lever body (207) is threadedly connected in the interior of the threaded block (301), and the threaded block (301) penetrates through the stretching cover (210).

4. The ball screw bearing with a dustproof structure according to claim 1, characterized in that: The sliding rail (206) is provided with two, and the sliding block (211) is provided with four.

5. The ball screw bearing with a dustproof structure according to claim 1, characterized in that: The interior of the first steel ring (303) is provided with a steel ball (304), the steel ball (304) is provided with a plurality of, and the interior of the steel ball (304) is provided with a second steel ring (305).

6. The ball screw bearing with a dustproof structure according to claim 5, characterized in that: The interior of the second steel ring (305) is provided with an inner ring (308), the side of the inner ring (308) is fixedly connected with a connecting rod (306), and the side of the connecting rod (306) is fixedly connected with a connecting seat (307).

7. The ball screw bearing with a dustproof structure according to claim 1, characterized in that: The support assembly (1) includes an aluminum profile (101), and the side of the aluminum profile (101) is fixedly connected with a first clamping plate (102) and a second clamping plate (103).

8. The ball screw bearing with a dustproof structure according to claim 7, characterized in that: The aluminum profile (101), the first clamping plate (102) and the second clamping plate (103) are provided with two.

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