Ball screw transmission device

Abstract

The utility model discloses a ball screw transmission device which comprises a screw and a screw sleeve, the inner wall of the screw sleeve is in threaded connection with the outer side wall of the screw, detachable supporting assemblies are installed at the two ends of the screw, and connecting locking assemblies are symmetrically arranged on the supporting assemblies. Through the arranged supporting assembly, connection locking of the upper supporting shell and the lower supporting shell can be relieved, the upper supporting shell is taken down, a lead screw or a screw sleeve is maintained, connection between the supporting assembly and external equipment does not need to be relieved, and disassembly can be conducted under the condition that the distance between the two sides is fixed; through the connection locking assembly, the pressing blocks on the two sides are pressed at the same time, the spring shrinks, the limiting protrusion of the inserting plate is separated from the limiting hole, locking can be unlocked, dismounting and mounting are convenient, and the dismounting and mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball screws, in particular to a ball screw transmission device. Background Art

[0002] With the innovation and reform of industrial technology and the high-speed rotation development of the manufacturing industry, the market demand for ball screws is increasing. As is well known, a ball screw is an ideal product for converting rotary motion into linear motion or vice versa, with characteristics such as high positioning accuracy, high life, low pollution, and the ability to perform high-speed forward and reverse transmission and transmission conversion. Therefore, it is widely used in the industry. When the screw is connected to the motor through a coupling, the rotation of the screw can drive the ball screw for transmission.

[0003] When the existing ball screw transmission device is in use, the two ends of the screw need to be rotatably connected to the support plates to provide support. However, when disassembling and repairing the screw or the screw sleeve, one side of the support plate needs to be removed to disassemble the screw or the screw sleeve. The existing support plates are mostly fixed with bolts and require tools for disassembly and assembly, with cumbersome steps. And when the distance between the two sides is fixed, it is relatively difficult to disassemble and assemble the transmission device. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a ball screw transmission device. By setting the support assembly, the connection lock between the upper support shell and the lower support shell can be released, the upper support shell can be removed, and the screw or the screw sleeve can be repaired without disconnecting the support assembly from the external device. When the distance between the two sides is fixed, disassembly can be carried out; by setting the connection locking assembly, when pressing the pressing blocks on both sides simultaneously, the spring contracts, and the limiting protrusion of the insertion plate disengages from the limiting hole, so that the lock can be released, the disassembly and assembly are convenient, and the disassembly and assembly efficiency is improved.

[0005] One of the purposes of the utility model is realized by adopting the following technical scheme: a ball screw transmission device, comprising: a screw and a screw sleeve, the inner wall of the screw sleeve is threadedly connected to the outer wall of the screw, and detachable support assemblies are installed at both ends of the screw, and connection locking assemblies are symmetrically arranged on the support assemblies;

[0006] The support assembly includes an upper support shell, a lower support shell, and a bearing. Receiving grooves are respectively formed inside the upper support shell and the lower support shell, the bearing is arranged inside the receiving groove, and a mounting plate is fixedly connected to the bottom end of the lower support shell;

[0007] The connection locking assembly includes an upper housing, a lower housing, and a plug board. A through hole is formed in the side wall of the upper housing. A pressing block is provided on the side wall of the plug board. The side wall of the pressing block is slidably connected to the inner side wall of the through hole. A spring is fixedly connected to the other side wall of the plug board, and the other end of the spring is fixedly connected to the inner side wall of the upper housing. A limiting protrusion is provided at the bottom end of the plug board. A limiting hole is formed in the same side surface of the lower housing as the through hole, and the position of the limiting hole corresponds to the position of the limiting protrusion. By providing the support assembly, the connection locking between the upper support shell and the lower support shell can be released, and the upper support shell can be removed for repairing the lead screw or the lead screw nut without disconnecting the support assembly from the external device. Disassembly can be carried out while the distance between both sides is fixed. By providing the connection locking assembly, by pressing the pressing blocks on both sides simultaneously, the spring contracts, and the limiting protrusion of the plug board disengages from the limiting hole, thus unlocking. The disassembly and assembly are convenient, and the disassembly and assembly efficiency is improved.

[0008] According to the ball screw drive device described above, a guiding inclined surface is provided at the bottom end of the limiting protrusion.

[0009] According to the ball screw drive device described above, the combined thickness of the spring after complete contraction and the plug board and the limiting protrusion is not greater than the cavity thickness of the lower housing.

[0010] For the ball screw drive device described above, anti-slip lines are provided on the outer surface of the pressing block.

[0011] According to the ball screw drive device described above, the plug board, the pressing block, and the limiting protrusion are integrally formed.

[0012] According to the ball screw drive device described above, the opposite surfaces of the two upper housings are respectively fixedly connected to the left and right side walls of the upper support shell.

[0013] According to the ball screw drive device described above, the opposite surfaces of the two lower housings are respectively fixedly connected to the left and right side walls of the lower support shell.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 is a perspective view of a ball screw drive device of the present utility model;

[0017] Figure 2 is a structural diagram of the support assembly of a ball screw drive device of the present utility model;

[0018] Figure 3Structural diagram of the connection and locking component of a ball screw drive device of the present utility model;

[0019] Figure 4 Cross-sectional view of the connection and locking component of a ball screw drive device of the present utility model.

[0020] Legend description:

[0021] 1. Lead screw; 2. Threaded sleeve; 3. Support component; 4. Connection and locking component; 301. Upper support shell; 302. Lower support shell; 303. Storage groove; 304. Mounting plate; 305. Bearing; 401. Upper shell; 4011. Through hole; 402. Lower shell; 4021. Limit hole; 403. Insertion plate; 404. Spring; 405. Pressing block; 4051. Anti-slip pattern; 406. Limit protrusion; 4061. Guide slope. Specific implementation manners

[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , an embodiment of a ball screw drive device of the present utility model includes: a lead screw 1 and a threaded sleeve 2. The inner wall of the threaded sleeve 2 is threadedly connected to the outer wall of the lead screw 1. Removable support components 3 are installed at both ends of the lead screw 1, and connection and locking components 4 are symmetrically arranged on the support components 3;

[0024] The support component 3 includes an upper support shell 301, a lower support shell 302, and a bearing 305. Storage grooves 303 are formed inside both the upper support shell 301 and the lower support shell 302. The bearing 305 is arranged inside the storage groove 303. The bottom end of the lower support shell 302 is fixedly connected to a mounting plate 304;

[0025] The connection locking assembly 4 includes an upper housing 401, a lower housing 402, and a plug plate 403. The opposite surfaces of the two upper housings 401 are fixedly connected to the left and right side walls of the upper support shell 301 respectively, and the opposite surfaces of the two lower housings 402 are fixedly connected to the left and right side walls of the lower support shell 302 respectively. A through hole 4011 is provided on the side wall of the upper housing 401. A pressing block 405 is provided on the side wall of the plug plate 403. An anti-slip pattern 4051 is provided on the outer surface of the pressing block 405. The side wall of the pressing block 405 is slidably connected to the inner side wall of the through hole 4011. A spring 404 is fixedly connected to the other side wall of the plug plate 403, and the other end of the spring 404 is fixedly connected to the inner side wall of the upper housing 401. A limiting protrusion 406 is provided at the bottom end of the plug plate 403. The plug plate 403, the pressing block 405, and the limiting protrusion 406 are integrally formed. A limiting hole 4021 is provided on the same side surface of the lower housing 402 as the through hole 4011. The position of the limiting hole 4021 corresponds to the position of the limiting protrusion 406. A guiding inclined surface 4061 is provided at the bottom end of the limiting protrusion 406. After the spring 404 is completely contracted, the combined thickness of the plug plate 403 and the limiting protrusion 406 is not greater than the cavity thickness of the lower housing 402. By providing the support assembly 3, during use, after the assembly is completed, the two support assemblies 3 are fixedly connected to the external device through the mounting plate 304. When disassembling and repairing the lead screw 1 or the lead nut 2, the connection locking of the upper support shell 301 and the lower support shell 302 by the connection locking assembly 4 is released, the upper support shell 301 is removed, and then the bearing 305 and the lead screw 1 can be taken out together. The bearing 305 is removed from the lead screw 1, and then the lead screw 1 or the lead nut 2 can be repaired without releasing the connection between the support assembly 3 and the external device. Disassembly can be carried out under the condition that the distance between the two sides is fixed; by providing the connection locking assembly 4, when releasing the connection locking of the upper support shell 301 and the lower support shell 302, press the pressing blocks 405 on both sides simultaneously, the spring 404 contracts, and the limiting protrusion 406 of the plug plate 403 disengages from the limiting hole 4021, and the locking can be released. The upper support shell 301 can be slid off. When locking the connection again, align the plug plate 403 with the lower housing 402 and insert it. The guiding inclined surface 4061 guides the insertion. When the limiting protrusion 406 corresponds to the limiting hole 4021, the spring 404 extends to push the plug plate 403, so that the limiting protrusion 406 is inserted into the limiting hole 4021 to complete the locking. The disassembly and assembly are convenient, and the disassembly and assembly efficiency is improved.

[0026] Working principle: When in use, after the components are assembled, the two sets of support components 3 are fixedly connected to the external device through the mounting plate 304. When disassembling and repairing the lead screw 1 or the lead screw nut 2, the connection locking of the upper support shell 301 and the lower support shell 302 by the connection locking component 4 is released. At the same time, the pressing blocks 405 on both sides are pressed, the spring 404 contracts, and the limit protrusion 406 of the insertion plate 403 disengages from the limit hole 4021, then the locking can be released. Next, the upper support shell 301 is removed, and then the bearing 305 and the lead screw 1 are taken out together. The bearing 305 is removed from the lead screw 1, and then the lead screw 1 or the lead screw nut 2 can be repaired without disconnecting the connection between the support component 3 and the external device. Disassembly can be carried out under the condition that the distance between both sides is fixed.

[0027] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A ball screw drive device, comprising: A lead screw (1) and a lead screw nut (2), characterized in that the inner wall of the lead screw nut (2) is threadedly connected to the outer wall of the lead screw (1), and detachable support components (3) are installed at both ends of the lead screw (1), and connection locking components (4) are symmetrically arranged on the support components (3); The support component (3) includes an upper support shell (301), a lower support shell (302), and a bearing (305). Storage grooves (303) are formed inside the upper support shell (301) and the lower support shell (302). The bearing (305) is arranged inside the storage groove (303), and a mounting plate (304) is fixedly connected to the bottom end of the lower support shell (302); The connection locking component (4) includes an upper shell (401), a lower shell (402), and an insertion plate (403). A through hole (4011) is formed in the side wall of the upper shell (401). A pressing block (405) is arranged on the side wall of the insertion plate (403). The side wall of the pressing block (405) is slidably connected to the inner wall of the through hole (4011). A spring (404) is fixedly connected to the other side wall of the insertion plate (403). The other end of the spring (404) is fixedly connected to the inner wall of the upper shell (401). A limiting protrusion (406) is arranged at the bottom end of the insertion plate (403). A limiting hole (4021) is formed in the same side surface of the lower shell (402) as the through hole (4011). The position of the limiting hole (4021) corresponds to the position of the limiting protrusion (406).

2. The ball screw drive device according to claim 1, characterized in that, A guiding inclined surface (4061) is arranged at the bottom end of the limiting protrusion (406).

3. A ball screw drive device according to claim 1, characterized in that, After the spring (404) is completely contracted, the combined thickness of the insertion plate (403) and the limiting protrusion (406) is not greater than the cavity thickness of the lower shell (402).

4. A ball screw drive device according to claim 1, characterized in that, Anti-slip lines (4051) are arranged on the outer surface of the pressing block (405).

5. A ball screw drive device according to claim 1, characterized in that, The insertion plate (403), the pressing block (405), and the limiting protrusion (406) are integrally formed.

6. A ball screw drive device according to claim 1, characterized in that, The opposite surfaces of the two upper shells (401) are respectively fixedly connected to the left and right side walls of the upper support shell (301).

7. A ball screw drive device according to claim 1, characterized in that, The opposite surfaces of the two lower shells (402) are respectively fixedly connected to the left and right side walls of the lower support shell (302).

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