CN215596332U

CN215596332U - Adjustable lead screw assembly

Info

Publication number: CN215596332U
Application number: CN202121988821.2U
Authority: CN
Inventors: 赵文芬
Original assignee: Shijiazhuang Chenggui Mechanical Equipment Co ltd
Current assignee: Shijiazhuang Chenggui Mechanical Equipment Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-21
Anticipated expiration: 2031-08-23

Abstract

The utility model relates to the field of lead screws, in particular to an adjustable lead screw assembly, which comprises a supporting seat, wherein the top of a protective box is connected with an extension plate, the bottom of the extension plate is provided with a cooling fan, the inside of an adjusting groove is connected with an adjusting block, the surface of the adjusting block is connected with an adjusting spring, the inside of a pre-tightening nut is connected with an adjusting piece, the surface of a pressure sensor is connected with a lead screw sleeve, dust can be prevented from entering through the extension plate to influence the use effect, the working efficiency is reduced, the heat dissipation is realized through the cooling fan, the lead screw is prevented from generating a large amount of heat, the service life is shortened, the part aging is accelerated, the adjusting block can be limited through the adjusting groove, the fixed length of the lead screw in a connecting rod can be rapidly adjusted under the action of the adjusting spring, the effect of adjusting the length is achieved, the application range is wider, the lead screw sleeve can be adjusted under the action of the pre-tightening nut through the adjusting piece, avoid producing the space, reduce the transmission precision.

Description

Adjustable lead screw assembly

Technical Field

The utility model relates to the technical field of lead screws, in particular to an adjustable lead screw assembly.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion. The ball screw is the most commonly used transmission element on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance. The ball screw consists of a screw rod, a nut, a steel ball, a preforming piece, a reverser and a dust remover. Its function is to convert the rotary motion into a linear motion, which is a further extension and development of the acme screw, the important meaning of this development is to change the bearing from sliding motion to rolling motion.

There are the following problems: present lead screw assembly often exposes externally, can fall the dust when not using, influence the removal effect of lead screw, reduce work efficiency, present lead screw assembly uses for a long time, can make the lead screw produce a large amount of heats, reduce the life of lead screw, accelerate the part ageing, and present lead screw is the integral type structure, can not adjust the length of lead screw according to the demand, certain limitation has, application scope is lower, and the pretightning force can not be adjusted to present lead screw, can cause wearing and tearing after long-time the use, produce the space with screw-nut, reduce the transmission precision, influence the processing effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an adjustable lead screw assembly.

In order to achieve the purpose, the utility model adopts the following technical scheme: an adjustable lead screw assembly comprises a supporting seat, wherein the bottom of the supporting seat is connected with a shock absorption seat, the top of the supporting seat is connected with a protective box, the top of the protective box is connected with an extension plate, the bottom of the extension plate is provided with a cooling fan, the interior of the protective box is connected with a sliding seat, one side of the protective box is connected with a motor, one side of the motor is connected with a coupler, one side of the coupler is connected with a connecting rod, the surface of the connecting rod is connected with a lead screw connecting seat, the interior of the lead screw connecting seat is connected with a push plate, the interior of the connecting rod is connected with an adjusting groove, the interior of the adjusting groove is connected with an adjusting block, the surface of the adjusting block is connected with an adjusting spring, the surface of the adjusting spring is connected with a limiting plate, one side of the limiting plate is connected with a lead screw, one side of the lead screw is connected with a lead screw fixing seat, the bottom of the lead screw fixing seat is connected with a fixing device, the surface of the lead screw is connected with a first lead screw nut, one side of the first lead screw nut is connected with a pre-tightening nut, one side of the pre-tightening nut is connected with a second lead screw nut, the interior of the pre-tightening nut is connected with an adjusting part, the surface of the adjusting part is connected with a pressure sensor, and the surface of the pressure sensor is connected with a lead screw sleeve.

As a further description of the above technical solution:

the shock mount and supporting seat welding, the shock mount has four groups, protective housing and supporting seat fixed connection, the extension board cup joints with the protective housing, the extension board has two sets ofly.

As a further description of the above technical solution:

the cooling fan is fixedly connected with the protective box, the cooling fans are provided with three groups, the sliding seat is fixedly connected with the protective box, the sliding seat is provided with four groups, and the cooling fans are positioned on the same horizontal line of the protective box.

As a further description of the above technical solution:

the motor is welded with the protective box, the coupler is fixedly connected with the motor, the connecting rod is rotatably connected with the coupler, the lead screw connecting seat is sleeved with the connecting rod, and the lead screw connecting seat is welded with the protective box.

As a further description of the above technical solution:

the utility model discloses a lead screw connecting seat, including push pedal and lead screw connecting seat, the push pedal has two sets ofly, the adjustment tank cup joints with the connecting rod, regulating block and adjustment tank swing joint, regulating spring and regulating block welding, the limiting plate cup joints with regulating spring, the limiting plate cup joints with the connecting rod, the regulating block has two sets ofly.

As a further description of the above technical solution:

the lead screw is welded with the limiting plate, the lead screw is sleeved with the connecting rod, the lead screw fixing seat is fixedly connected with the lead screw, the fixing device is movably connected with the lead screw fixing seat, the first lead screw nut is sleeved with the lead screw, and the pre-tightening nut is fixedly connected with the first lead screw nut.

As a further description of the above technical solution:

the pre-tightening nut is sleeved with the lead screw, the second lead screw nut is fixedly connected with the pre-tightening nut, the second lead screw nut is sleeved with the lead screw, the first lead screw nut and the second lead screw nut are symmetrical through the pre-tightening nut, the adjusting piece is fixedly connected with the pre-tightening nut, the pressure sensor is movably connected with the adjusting piece, the lead screw sleeve is fixedly connected with the pressure sensor, the lead screw sleeve is movably connected with the lead screw, and the lead screw sleeve is provided with two groups.

The utility model has the following beneficial effects: can close the protective housing through the extension board, avoid falling the ash, influence the result of use, reduce work efficiency, play the heat dissipation through radiator fan, avoid the lead screw to produce a large amount of heats, reduce life, accelerate the part ageing, can carry on spacingly to the regulating block through the adjustment tank, under regulating spring's effect, but the fixed length of quick adjustment lead screw in the connecting rod, thereby play the effect of adjusting length, application scope is more extensive, can be under pretightening nut's effect through the regulating part, adjust the lead screw cover, avoid producing the space, reduce the transmission precision, through pressure sensor detectable pretightning force, it is too big to avoid the regulating part to adjust, cause bigger wearing and tearing, avoid adjusting the undersize, can not eliminate the clearance, the precision can't be guaranteed.

Drawings

Fig. 1 is a schematic perspective view of an adjustable lead screw assembly according to the present invention;

FIG. 2 is a schematic sectional view of a front view of an adjustable lead screw assembly according to the present invention;

FIG. 3 is an enlarged view of part A of an adjustable lead screw assembly according to the present invention;

FIG. 4 is a schematic sectional view of a top view of a lead screw connecting seat of an adjustable lead screw assembly according to the present invention;

fig. 5 is an enlarged schematic view of a portion B of an adjustable lead screw assembly according to the present invention.

Illustration of the drawings:

1. a supporting seat; 2. a protective box; 3. a coupling; 4. a slide base; 5. a heat radiation fan; 6. a screw rod fixing seat; 7. a screw rod; 8. a motor; 9. a connecting rod; 10. an extension plate; 11. a first lead screw nut; 12. a second feed screw nut; 13. a fixing device; 14. a shock absorbing seat; 15. a screw rod sleeve; 16. pre-tightening the nut; 17. an adjustment member; 18. a pressure sensor; 19. pushing the plate; 20. a screw rod connecting seat; 21. a limiting plate; 22. an adjusting block; 23. an adjustment groove; 24. the spring is adjusted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and as meaning, for example, either 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, one embodiment of the present invention is provided: an adjustable lead screw assembly comprises a supporting seat 1, wherein the bottom of the supporting seat 1 is connected with a shock absorption seat 14, the top of the supporting seat 1 is connected with a protective box 2, the top of the protective box 2 is connected with an extension plate 10, the bottom of the extension plate 10 is provided with a cooling fan 5, the interior of the protective box 2 is connected with a slide seat 4, one side of the protective box 2 is connected with a motor 8, one side of the motor 8 is connected with a coupler 3, one side of the coupler 3 is connected with a connecting rod 9, the surface of the connecting rod 9 is connected with a lead screw connecting seat 20, the interior of the lead screw connecting seat 20 is connected with a push plate 19, the interior of the connecting rod 9 is connected with an adjusting groove 23, the interior of the adjusting groove 23 is connected with an adjusting block 22, the surface of the adjusting block 22 is connected with an adjusting spring 24, the surface of the adjusting spring 24 is connected with a limiting plate 21, one side of the limiting plate 21 is connected with a lead screw 7, one side of the lead screw 7 is connected with a lead screw fixing seat 6, the bottom of the lead screw fixing seat 6 is connected with a fixing device 13, the surface of the lead screw 7 is connected with a first lead screw nut 11, one side of the first lead screw nut 11 is connected with a pre-tightening nut 16, one side of the pre-tightening nut 16 is connected with a second lead screw nut 12, the interior of the pre-tightening nut 16 is connected with an adjusting part 17, the surface of the adjusting part 17 is connected with a pressure sensor 18, and the surface of the pressure sensor 18 is connected with a lead screw sleeve 15.

The shock absorption seat 14 is welded with the supporting seat 1, four groups of shock absorption seats 14 are provided, the protective box 2 is fixedly connected with the supporting seat 1, the extension plate 10 is sleeved with the protective box 2, two groups of extension plates 10 are provided, the shock absorption effect is realized through the shock absorption seats 14, the stability of the running process of the screw rod 7 is improved, the processing precision is ensured, the protective box 2 can play a protective effect to prevent the screw rod 7 from being damaged by collision, the protective box 2 can be closed to prevent dust from falling when the extension plates 10 are not used, the using effect of the screw rod 7 is influenced, the working efficiency is reduced, the heat radiation fan 5 is fixedly connected with the protective box 2, three groups of heat radiation fans 5 are provided, the sliding seat 4 is fixedly connected with the protective box 2, four groups of sliding seats 4 are provided, the heat radiation fans 5 are positioned on the same horizontal line of the protective box 2, the heat radiation effect is realized through the heat radiation fan 5, the generation of the screw rod 7 is avoided, and the service life of the screw rod 7 is reduced, accelerating the aging of parts, playing the role of moving the workpiece through the slide 4 and the screw 7 at the same time, assisting the use effect of the screw 7, being more smooth, ensuring the stability of the workpiece, welding the motor 8 and the protective box 2, fixedly connecting the coupler 3 with the motor 8, rotatably connecting the connecting rod 9 with the coupler 3, sleeving the connecting rod 9 with the screw connecting seat 20, welding the screw connecting seat 20 with the protective box 2, driving the coupler 3 to rotate through the motor 8, ensuring the normal rotation of the screw 7, ensuring the tight connection with the screw 7 through the connecting rod 9, also playing the role of adjusting the length of the screw 7, playing the role of stabilizing the connecting rod 9 through the screw connecting seat 20, ensuring the stability of the screw 7 in the rotating process, movably connecting the push plate 19 with the screw connecting seat 20, two sets of push plates 19, sleeving the adjusting grooves 23 with the connecting rod 9, and movably connecting the adjusting blocks 22 with the adjusting grooves 23, the adjusting spring 24 is welded with the adjusting block 22, the limiting plate 21 is sleeved with the adjusting spring 24, the limiting plate 21 is sleeved with the connecting rod 9, two groups of adjusting blocks 22 are arranged, the adjusting plate 19 can adjust the length of the screw rod 7, the operation is more convenient and faster, the working efficiency is improved, the adjusting block 22 can be limited through the adjusting groove 23, the fixed length of the screw rod 7 in the connecting rod 9 can be quickly adjusted under the action of the adjusting spring 24, so that the adjusting length is adjusted, the application range is wider, the operation effect of the adjusting block 22 on the screw rod 7 is ensured through the limiting plate 21, the screw rod 7 is prevented from being separated from the connecting rod 9, the use stability is ensured while the adjusting effect is ensured, the screw rod 7 is welded with the limiting plate 21, the screw rod 7 is sleeved with the connecting rod 9, the screw rod fixing seat 6 is fixedly connected with the screw rod 7, and the fixing device 13 is movably connected with the screw rod fixing seat 6, the first screw nut 11 is sleeved with the screw rod 7, the pre-tightening nut 16 is fixedly connected with the first screw nut 11, the smooth operation of the screw rod 7 is ensured through the screw rod fixing seat 6, when the length of the screw rod 7 is adjusted through the fixing device 13, the screw rod fixing seat 6 can be fixed after moving along with the screw rod 7, the smooth use of the screw rod fixing seat 6 is ensured, the pre-tightening force of the screw rod nut can be ensured through the direct adjustment of the pre-tightening nut 16 through the connection of the first screw nut 11 and the second screw nut 12 with the pre-tightening nut 16, the operation is convenient and fast, the efficiency is higher, the pre-tightening nut 16 is sleeved with the screw rod 7, the second screw nut 12 is fixedly connected with the pre-tightening nut 16, the second screw nut 12 is sleeved with the screw rod 7, the first screw nut 11 and the second screw nut 12 are symmetrical through the pre-tightening nut 16, the adjusting piece 17 is fixedly connected with the pre-tightening nut 16, and the pressure sensor 18 is movably connected with the adjusting piece 17, screw rod cover 15 and pressure sensor 18 fixed connection, screw rod cover 15 and lead screw 7 swing joint, screw rod cover 15 has two sets ofly, can adjust screw rod cover 15 under the effect of pretension nut 16 through regulating part 17, avoids producing the space, reduces the transmission precision, through 18 detectable pretightning forces of pressure sensor, it is too big to avoid regulating part 17 to adjust, causes bigger wearing and tearing, avoids adjusting the undersize, can not eliminate the clearance, the unable assurance of precision.

The working principle and the process are as follows: the coupler 3 is driven to rotate by the motor 8, the connecting rod 9 drives the lead screw 7 to rotate, the first lead screw nut 11 and the second lead screw nut 12 move to form a lead screw assembly, when the lead screw assembly is not used, the protective box 2 can be closed by the extension plate 10, dust falling is avoided, the use effect of the lead screw 7 is influenced, the working efficiency is reduced, the heat dissipation fan 5 plays a role in heat dissipation in the use process, the lead screw 7 is prevented from generating a large amount of heat, the service life of the lead screw 7 is shortened, the aging of parts is accelerated, the shock absorption seat 14 plays a role in buffering and shock absorption, the stability in the operation process of the lead screw 7 is improved, the processing precision is ensured, when the use length of the lead screw 7 needs to be adjusted, the adjusting block 22 is extruded by the push plate 19, the adjusting block 22 can be separated from the adjusting groove 23 under the action of the adjusting spring 24, the fixed length of the lead screw 7 in the connecting rod 9 can be quickly adjusted, and the effect of adjusting the length is achieved, application scope is more extensive, limiting plate 21 can avoid lead screw 7 and connecting rod 9 to break away from, when adjusting, fixing device 13 can make lead screw fixing base 6 follow lead screw 7 and remove, it is fixing to adjust the position, guarantee that lead screw fixing base 6's use is steady, when using for a long time, make and produce the clearance between lead screw 7 and the screw-nut, through rotatory pretension nut 16, make regulating part 17 can be under pretension nut 16's effect, adjust lead screw cover 15, avoid producing the space, reduce the transmission precision, when regulating part 17 adjusts, pressure sensor 18 detectable pretightning force, it is too big to avoid regulating part 17 to adjust, cause bigger wearing and tearing, adjust the undersize, can not eliminate the clearance, the precision can't be guaranteed.

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 or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an adjustable lead screw subassembly, includes supporting seat (1), its characterized in that: the shock absorption device is characterized in that the bottom of the supporting seat (1) is connected with a shock absorption seat (14), the top of the supporting seat (1) is connected with a protective box (2), the top of the protective box (2) is connected with an extension plate (10), the bottom of the extension plate (10) is provided with a cooling fan (5), the interior of the protective box (2) is connected with a slide seat (4), one side of the protective box (2) is connected with a motor (8), one side of the motor (8) is connected with a coupler (3), one side of the coupler (3) is connected with a connecting rod (9), the surface of the connecting rod (9) is connected with a lead screw connecting seat (20), the interior of the lead screw connecting seat (20) is connected with a push plate (19), the interior of the connecting rod (9) is connected with an adjusting groove (23), the interior of the adjusting groove (23) is connected with an adjusting block (22), and the surface of the adjusting block (22) is connected with an adjusting spring (24), the surface of regulating spring (24) is connected with limiting plate (21), one side of limiting plate (21) is connected with lead screw (7), one side of lead screw (7) is connected with lead screw fixing base (6), the bottom of lead screw fixing base (6) is connected with fixing device (13), the surface of lead screw (7) is connected with first screw-nut (11), one side of first screw-nut (11) is connected with pretension nut (16), one side of pretension nut (16) is connected with second screw-nut (12), the internal connection of pretension nut (16) has regulating part (17), the surface of regulating part (17) is connected with pressure sensor (18), the surface of pressure sensor (18) is connected with lead screw cover (15).

2. An adjustable lead screw assembly as set forth in claim 1, wherein: shock attenuation seat (14) and supporting seat (1) welding, shock attenuation seat (14) have four groups, protective housing (2) and supporting seat (1) fixed connection, extension board (10) cup joint with protective housing (2), extension board (10) have two sets ofly.

3. An adjustable lead screw assembly as set forth in claim 1, wherein: radiator fan (5) and protective housing (2) fixed connection, radiator fan (5) have three groups, slide (4) and protective housing (2) fixed connection, slide (4) have four groups, radiator fan (5) are in on the same water flat line of protective housing (2).

4. An adjustable lead screw assembly as set forth in claim 1, wherein: the motor (8) is welded with the protective box (2), the coupler (3) is fixedly connected with the motor (8), the connecting rod (9) is rotatably connected with the coupler (3), the lead screw connecting seat (20) is sleeved with the connecting rod (9), and the lead screw connecting seat (20) is welded with the protective box (2).

5. An adjustable lead screw assembly as set forth in claim 1, wherein: push pedal (19) and lead screw connecting seat (20) swing joint, push pedal (19) have two sets ofly, adjustment tank (23) cup joint with connecting rod (9), regulating block (22) and adjustment tank (23) swing joint, regulating spring (24) and regulating block (22) welding, limiting plate (21) cup joint with regulating spring (24), limiting plate (21) cup joint with connecting rod (9), regulating block (22) have two sets ofly.

6. An adjustable lead screw assembly as set forth in claim 1, wherein: lead screw (7) and limiting plate (21) welding, lead screw (7) cup joint with connecting rod (9), lead screw fixing base (6) and lead screw (7) fixed connection, fixing device (13) and lead screw fixing base (6) swing joint, first screw-nut (11) cup joint with lead screw (7), pretension nut (16) and first screw-nut (11) fixed connection.

7. An adjustable lead screw assembly as set forth in claim 1, wherein: the pre-tightening nut (16) is sleeved with the screw rod (7), the second screw rod nut (12) is fixedly connected with the pre-tightening nut (16), the second screw rod nut (12) is sleeved with the screw rod (7), the first screw rod nut (11) and the second screw rod nut (12) are symmetrical through the pre-tightening nut (16), the adjusting piece (17) is fixedly connected with the pre-tightening nut (16), the pressure sensor (18) is movably connected with the adjusting piece (17), the screw rod sleeve (15) is fixedly connected with the pressure sensor (18), the screw rod sleeve (15) is movably connected with the screw rod (7), and the screw rod sleeve (15) is divided into two groups.