CN219994305U

CN219994305U - Screw assembly

Info

Publication number: CN219994305U
Application number: CN202321616836.5U
Authority: CN
Inventors: 李沛东; 刘明
Original assignee: Xuanwei Industrial Technology Shenzhen Co ltd
Current assignee: Xuanwei Industrial Technology Shenzhen Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-11-10
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses a screw assembly, which comprises a transmission screw, a slide block guide rod, a nut slide block, screw end covers and screw bases, wherein the screw end covers and the screw bases are oppositely arranged at two ends of the transmission screw and the slide block guide rod, and the transmission screw and the slide block guide rod are connected with the nut slide block through buffer components so that the buffer components can slide back and forth along the extending direction of the transmission screw along with the nut slide block. In the screw assembly provided by the utility model, when the nut sliding block slides back and forth on the transmission screw, the nut sliding block actually drives the buffer part to slide, so that the impact sound of movement between metal materials can be reduced, and meanwhile, the abrasion and abnormal sound caused by friction between the metal materials are solved.

Description

Screw assembly

Technical Field

The present utility model relates to a screw assembly.

Background

Screw applications are now very widespread, such as electric trunk, screw extruder, screw compressor, etc. all require screw construction. In the prior screw assembly, a sliding block is generally adopted to directly slide on a screw for working, and in the long-term prior work, the contact part between the sliding block and the screw is very easy to wear, so that abnormal sound is generated between the sliding block and the screw or the phenomenon that the screw cannot work normally is caused, and therefore the problem of how to reduce the wear degree between the sliding block and the screw is solved in the prior art.

Disclosure of Invention

The utility model mainly aims to provide a screw assembly, and aims to solve the technical problems.

In order to achieve the above purpose, the screw assembly provided by the utility model comprises a driving screw, a slider guide rod, a nut slider, screw end covers and screw bases, wherein the screw end covers and the screw bases are oppositely arranged at two ends of the driving screw and the slider guide rod, and the driving screw and the slider guide rod are connected with the nut slider through buffer components, so that the buffer components can follow the nut slider to slide back and forth along the extending direction of the driving screw.

In an embodiment, the buffer component comprises a first buffer cylinder and a second buffer cylinder which are connected, wherein the first buffer cylinder is positioned outside the transmission screw, and the second buffer cylinder is positioned outside the slider guide rod.

In an embodiment, the nut slider includes a first accommodating cavity and a second accommodating cavity, the outer wall surface of the first buffer tube is clamped and connected with the inner wall surface of the first accommodating cavity, and the outer wall surface of the second buffer tube is clamped and connected with the inner wall surface of the second accommodating cavity.

In an embodiment, the end surfaces of the first buffer cylinder and the second buffer cylinder are provided with mounting parts, the end surfaces of the first accommodating cavity and the second accommodating cavity are provided with accommodating grooves which are concavely arranged, and the mounting parts are arranged in the accommodating grooves.

In an embodiment, the inner wall surface of the first accommodating cavity is provided with a plurality of first clamping grooves which are uniformly distributed along the circumferential direction of the first accommodating cavity, the first clamping grooves extend along the axial direction, the outer circumferential wall of the first buffer barrel is provided with a plurality of first clamping strips, and the first clamping strips are arranged in the first clamping grooves in a one-to-one correspondence manner.

In an embodiment, the inner wall surface of the second accommodating cavity is provided with two second clamping grooves which are symmetrically arranged, the outer wall surface of the second buffer cylinder is provided with two second clamping strips, and the two second clamping strips are respectively arranged in the two second clamping grooves.

In one embodiment, the outer portion of the nut slider is integrally formed with a ball stud.

In an embodiment, the screw assembly further comprises two bearing components, wherein the two bearing components are respectively sleeved at two ends of the transmission screw and are respectively positioned in the screw end cover and the screw base.

According to the technical scheme, the screw assembly comprises a transmission screw, a slider guide rod, a nut slider, screw end covers and screw bases, wherein the screw end covers and the screw bases are oppositely arranged at two ends of the transmission screw and the slider guide rod, and the transmission screw and the slider guide rod are connected with the nut slider through buffer components so that the buffer components can slide back and forth along the extending direction of the transmission screw along with the nut slider. Therefore, in the technical scheme, when the nut sliding block slides reciprocally on the transmission screw rod, the nut sliding block drives the buffer part to slide actually, so that the impact sound of movement between metal materials can be reduced, and meanwhile, the abrasion and abnormal sound caused by friction between the metal materials are solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a screw assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a disassembled structure of a screw assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view taken along the direction A-A in FIG. 1;

fig. 4 is a schematic structural view of a nut slider according to an embodiment of the present utility model.

Reference numerals illustrate: 10. a drive screw; 20. a slide block guide rod; 30. a nut slider; 31. a first accommodation chamber; 32. a second accommodation chamber; 33. a receiving groove; 34. a first clamping groove; 35. a second clamping groove; 36. a ball stud; 40. a screw end cap; 50. a screw base; 60. a buffer member; 61. a first buffer tube; 62. a second buffer tube; 63. a mounting part; 64. a first clamping strip; 65. a second clamping strip; 70. a bearing member; 80. a locknut.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Moreover, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

The utility model provides a screw assembly which can be used for equipment which needs to adopt a screw structure, such as an electric trunk, a screw extruder, a screw compressor and the like.

As shown in fig. 1, the screw assembly provided in the embodiment of the present utility model includes a driving screw 10, a slider guide 20, a nut slider 30, and screw end caps 40 and screw bases 50 disposed at two ends of the driving screw 10 and the slider guide 20, where the driving screw 10 and the slider guide 20 are connected to the nut slider 30 through a buffer member 60, so that the buffer member 60 can follow the nut slider 30 to slide reciprocally along the extending direction of the driving screw 10.

In this embodiment, the screw assembly includes a driving screw 10, a slider guide 20, a nut slider 30, and screw end caps 40 and screw bases 50 disposed at two ends of the driving screw 10 and the slider guide 20, where the driving screw 10 and the slider guide 20 are connected to the nut slider 30 through a buffer member 60, so that the buffer member 60 can follow the nut slider 30 to slide reciprocally along the extending direction of the driving screw 10. Therefore, in the present technical solution, when the nut slider 30 slides reciprocally on the driving screw 10, the nut slider 30 actually drives the buffer member 60 to slide, so as to reduce the impact sound of the movement between the metal materials, and solve the abrasion and abnormal noise caused by the friction between the metal materials.

Referring to fig. 2, the buffer member 60 includes a first buffer cylinder 61 and a second buffer cylinder 62 connected to each other, wherein the first buffer cylinder 61 is located outside the driving screw 10, and the second buffer cylinder 62 is located outside the slider guide 20. In the utility model, the transmission screw 10 and the slide guide 20 are spaced apart from the nut slide 30 by the first buffer cylinder 61 and the second buffer cylinder 62, so that the problem of high abrasion caused by multiple operations between the nut slide 30 and the two metal pieces of the transmission screw 10 can be fundamentally solved. And the buffer member 60 of the present utility model does not affect the transmission efficiency between the nut slider 30 and the drive screw 10 as well, the buffer member 60 is tightly fitted with the nut slider 30 as well.

Specifically, referring to fig. 3 and 4, the nut slider 30 includes a first accommodating cavity 31 and a second accommodating cavity 32, which are non-conductive, the outer wall surface of the first buffer tube 61 is clamped and connected with the inner wall surface of the first accommodating cavity 31, and the outer wall surface of the second buffer tube 62 is clamped and connected with the inner wall surface of the second accommodating cavity 32. In this embodiment, the first buffer cylinder 61 and the second buffer cylinder 62 may adopt a separated structure, and are correspondingly installed in the first accommodating chamber 31 and the second accommodating chamber 32, and then are connected to achieve the purpose of synchronous movement. Specifically, the first buffer tube 61 and the second buffer tube 62 may be connected by a conventional connection manner, for example, a bolt connection, a snap connection, etc. may maintain stability, which is not described herein.

Referring to fig. 4, the end surfaces of the first buffer tube 61 and the second buffer tube 62 are respectively provided with an installation portion 63, the end surfaces of the first accommodating cavity 31 and the second accommodating cavity 32 are respectively provided with an accommodating groove 33 which is concavely arranged, and the installation portion 63 is arranged in the accommodating groove 33. In this embodiment, the end surfaces of the first buffer cylinder 61 and the second buffer cylinder 62 are clamped in the accommodating groove 33 arranged in a concave manner, so that the outer surfaces of the buffer component 60 and the nut slider 30 are relatively flush after the assembly is completed, and the problem of abrasion caused by collision of parts in the reciprocating operation process is solved.

Referring to fig. 3 and 4, the inner wall surface of the first accommodating cavity 31 is provided with a plurality of first clamping grooves 34 uniformly distributed along the circumferential direction of the first accommodating cavity 31, the first clamping grooves 34 extend along the axial direction, the outer circumferential wall of the first buffer tube 61 is provided with a plurality of first clamping strips 64, and the first clamping strips 64 are disposed in the first clamping grooves 34 in a one-to-one correspondence. The inner wall surface of the second accommodating cavity 32 is provided with two second clamping grooves 35 symmetrically arranged, the outer wall surface of the second buffer tube 62 is provided with two second clamping strips 65, and the two second clamping strips 65 are respectively arranged in the two second clamping grooves 35.

In the present embodiment, the first buffer tube 61 and the second buffer tube 62 are fixed by means of the clamping connection, so that the stability of the first buffer tube 61 and the second buffer tube 62 during operation is improved.

In the above embodiment, the ball stud 36 is integrally formed on the exterior of the nut slider 30. Because ball stud 36 and nut slider 30 integrated into one piece, consequently can effectively solve the problem of nut slider 30 unbalance loading, promote the experience of the manual effort of product by a wide margin, can also increase the compatibility of product simultaneously.

In addition, the screw assembly further comprises two bearing members 70 and two locknuts 80, wherein the two bearing members 70 are respectively sleeved at two ends of the driving screw 10 and are respectively positioned in the screw end cover 40 and the screw base 50, and the two locknuts 80 are respectively arranged at two ends of the slider guide 20. In this embodiment, the bearing members 70 are provided at both ends of the drive screw 10, and are integrally connected by the slide guide rod through two locknuts 80, so that no additional frame fixing is required.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a screw rod subassembly, its characterized in that, screw rod subassembly includes drive screw (10), slider guide arm (20), nut slider (30) and set up relatively in drive screw (10) with screw rod end cover (40) and screw rod base (50) at slider guide arm (20) both ends, drive screw (10) with slider guide arm (20) all pass through buffer unit (60) with nut slider (30) are connected, so that buffer unit (60) follow-up in nut slider (30) are followed drive screw (10)'s extending direction reciprocating sliding.

2. Screw assembly according to claim 1, wherein the damping member (60) comprises a first damping cylinder (61) and a second damping cylinder (62) connected, the first damping cylinder (61) being located outside the drive screw (10) and the second damping cylinder (62) being located outside the slider guide (20).

3. The screw assembly according to claim 2, wherein the nut slider (30) comprises a first accommodating cavity (31) and a second accommodating cavity (32) which are non-conductive, an outer wall surface of the first buffer cylinder (61) is in clamping connection with an inner wall surface of the first accommodating cavity (31), and an outer wall surface of the second buffer cylinder (62) is in clamping connection with an inner wall surface of the second accommodating cavity (32).

4. A screw assembly according to claim 3, wherein the end surfaces of the first buffer cylinder (61) and the second buffer cylinder (62) are provided with mounting portions (63), the end surfaces of the first accommodating chamber (31) and the second accommodating chamber (32) are provided with accommodating grooves (33) arranged in a recessed manner, and the mounting portions (63) are arranged in the accommodating grooves (33).

5. A screw assembly according to claim 3, wherein the inner wall surface of the first accommodating cavity (31) is provided with a plurality of first clamping grooves (34) uniformly distributed along the circumferential direction of the first accommodating cavity (31), the first clamping grooves (34) extend along the axial direction, the outer circumferential wall of the first buffer tube (61) is provided with a plurality of first clamping strips (64), and the first clamping strips (64) are arranged in the first clamping grooves (34) in a one-to-one correspondence.

6. A screw assembly according to claim 3, wherein the inner wall surface of the second accommodating cavity (32) is provided with two second clamping grooves (35) symmetrically arranged, the outer wall surface of the second buffer tube (62) is provided with two second clamping strips (65), and the two second clamping strips (65) are respectively arranged in the two second clamping grooves (35).

7. The screw assembly of any of claims 1-6, wherein the nut runner (30) is integrally formed with a ball stud (36) on an exterior thereof.

8. Screw assembly according to any of claims 1-6, further comprising two bearing parts (70), wherein the two bearing parts (70) are respectively sleeved at both ends of the drive screw (10) and are respectively located in the screw end caps (40) and the screw base (50).