CN214045307U

CN214045307U - Wear-resisting type electric putter

Info

Publication number: CN214045307U
Application number: CN202022043534.6U
Authority: CN
Inventors: 申韬; 杨克龙; 杨雷刚; 陈建民
Original assignee: Huzhou Andite Technology Co ltd
Current assignee: Huzhou Andite Technology Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-08-24
Anticipated expiration: 2030-09-17

Abstract

The utility model provides a wear-resistant electric push rod, which comprises a sleeve pipe component, an inner pipe component, a transmission mechanism and a drive unit, wherein the transmission mechanism comprises a transmission screw rod sleeved in the inner pipe component and a positioning component coaxially sleeved on a shaft neck at the rear end of the transmission screw rod, and the positioning component comprises a positioning disk which is in butt connection with the end part of the sleeve pipe component and a bearing which is arranged in the positioning disk; through the locating component at the coaxial mounting structure optimization of drive screw rear end, set up the mounting hole and embed on original locating plate of being connected with the conflict of sleeve pipe tip and have a deep groove ball bearing, the positioning disk of calling the name, replace original locating plate, make and form relative slewing motion between during operation drive screw and the bearing, produce rolling frictional force, and then effectively alleviate the positioning disk and push away the sliding frictional force between the locating plate, reduce wearing and tearing between the spare part, the work efficiency and the life of increase push rod, and simple structure, therefore, the carrier wave prepaid electric energy meter is low in cost.

Description

Wear-resisting type electric putter

Technical Field

The utility model relates to an electric putter technical field, concretely relates to wear-resisting type electric putter.

Background

At present, the electric push rod is widely applied, and the electric push rod drives a pair of screw nuts to move relatively after a motor is decelerated by a gear box, so that the linear reciprocating motion of a telescopic rod is realized. The screw rod is arranged in the telescopic pipe, and the front end and the rear end of the screw rod are supported by other parts to keep balance during arrangement; the rear end of the screw of the existing product is supported by a positioning disc, and the positioning disc can play a supporting role to keep the balance of the screw when the screw rotates.

The Chinese utility model patent with application number CN201811320321.4 discloses a high-precision electric push rod with reliable self-locking, which comprises a motor, a transition flange, a transition shell, an overrunning self-locking device, a lead screw positioning assembly, a main shell, a ball screw component, an output push rod assembly and a pair of limit switches, wherein the motor is connected with the transition shell through the transition flange, the motor is connected with the overrunning self-locking device through a spline connecting shaft, and the overrunning self-locking device is positioned on the transition flange; the lead screw locating component comprises a locating disc, a bearing and a locking nut, an end cover is arranged on the outer side of the main shell, and the ball screw component is located in the main shell.

However, the existing positioning plate 5 ' forms an assembly relationship with the screw rod 3 ' through the positioning plate 4 ', the positioning plate is fixedly connected with the screw rod through threads, a central hole of the positioning disc is arranged on a central shaft of the positioning plate, the positioning disc can rotate on the surface of the central shaft of the positioning plate (see attached drawing 6), and when the positioning plate rotates, the sliding friction force between the positioning plate and the positioning plate is large, so that the abrasion of parts can be accelerated, the installation is inconvenient, and the working hours are wasted.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a wear-resisting type electric putter, through the locating component at drive screw rear end coaxial arrangement structural optimization, set up the mounting hole and embed on original locating plate of being connected with the conflict of sleeve pipe end and have a deep groove ball bearing, the positioning disk of calling name, replace original locating plate, make and form relative slewing motion between during operation drive screw and the bearing, produce rolling friction power, and then effectively alleviate the positioning disk and push away the sliding friction power between the locating plate, reduce the wearing and tearing between the spare part, the work efficiency and the life of increase push rod, and simple structure, low cost.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a wear-resisting type electric putter, includes that thimble assembly, cover are located in the thimble assembly and the front end runs through the inner tube subassembly that the thimble assembly stretches out, be used for driving the inner tube subassembly be concertina movement's drive mechanism and with the rear end fixed connection's of thimble assembly drive unit, drive mechanism locates including the cover drive screw in the inner tube subassembly still includes coaxial cover and locates positioning assembly on the drive screw rear end axle journal, positioning assembly include with the positioning disk that the tip of thimble assembly is contradicted and is connected and install in bearing in the positioning disk.

Preferably, a non-penetrating mounting hole is formed coaxially inwards along the axial direction on one end face of the positioning plate, and the bearing is mounted in the mounting hole.

Preferably, a through hole for the transmission screw to penetrate through is formed in the center of the positioning plate, the diameters of the mounting hole and the through hole are R1 and R2 respectively, the inner diameter of the bearing is R3, R1 is greater than R2 is greater than R3, and an inner hole of the bearing is mounted on a shaft neck of the transmission screw in a matching mode.

Preferably, the positioning disc is a T-shaped circular truncated cone structure integrally formed by a large-diameter outer cylinder and a small-diameter inner cylinder, an end face of the outer cylinder abuts against the sleeve assembly, and the inner cylinder is matched with and extends into the sleeve assembly.

Preferably, the bearing is provided as a deep groove ball bearing.

Preferably, the rear end support mechanism further comprises a belleville spring and a thrust bearing assembly which are coaxially sleeved on the rear end shaft neck of the transmission screw, wherein the belleville spring, the positioning assembly and the thrust bearing assembly are sequentially installed from inside to outside and jointly form the rear end support mechanism.

Preferably, the transmission mechanism further comprises a transmission nut for driving the inner pipe assembly to translate along the length direction of the sleeve assembly, and the transmission nut is sleeved on the transmission screw in a threaded manner and is in threaded fit connection with the rear end of the inner pipe assembly.

Preferably, the front end of the transmission screw is further provided with a front end positioning mechanism.

The beneficial effects of the utility model reside in that:

the utility model discloses a locating component at drive screw rear end coaxial arrangement configuration optimization, set up the mounting hole and embed on original positioning disk of being connected with sleeve pipe end portion conflict and have a deep groove ball bearing, replace former locating plate, make and form relative slewing motion between during operation drive screw and the bearing, produce rolling frictional force, and then effectively alleviate the sliding friction power between positioning disk and the thrust plate, reduce the wearing and tearing between the spare part, increase the work efficiency and the life of push rod, and simple structure, low cost.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

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

FIG. 3 is a schematic view of the positioning plate of the present invention;

FIG. 4 is a schematic view of the overall structure of the positioning assembly of the present invention;

FIG. 5 is a cross-sectional view of the whole structure of the positioning assembly of the present invention;

fig. 6 is an assembly relationship diagram of a positioning plate, a positioning plate and a screw in the prior art.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Examples

As shown in fig. 1-2, an abrasion-resistant electric putter includes a sleeve assembly 1, an inner tube assembly 2 sleeved in the sleeve assembly 1 and having a front end penetrating through the sleeve assembly 1 to extend out, a transmission mechanism 3 for driving the inner tube assembly 2 to make a telescopic motion, and a driving unit 4 fixedly connected to a rear end of the sleeve assembly 1, wherein the transmission mechanism 3 includes a transmission screw 31 sleeved in the inner tube assembly 2, and further includes a positioning assembly 5 coaxially sleeved on a rear end journal of the transmission screw 31, and the positioning assembly 5 includes a positioning plate 51 abutting against and connected to an end of the sleeve assembly 1, and a bearing 52 installed in the positioning plate 51.

Preferably, as shown in fig. 3, a non-penetrating mounting hole 50 is coaxially formed on an end surface of the positioning plate 51 inward along the axial direction thereof, and the bearing 52 is mounted in the mounting hole 50.

In this embodiment, by optimally designing the structure of the original positioning plate, a new positioning assembly 5 is obtained by forming a mounting hole 50 and a bearing 52 in the positioning plate 51, instead of the original positioning plate, so that a relative rotation motion is formed between the driving screw 31 and the bearing 52 during operation to generate a rolling friction force, thereby effectively reducing the sliding friction force between the positioning plate and the positioning plate, reducing the abrasion between parts, and further increasing the working efficiency and the service life of the push rod.

Preferably, as shown in fig. 3 to 5, a through hole 510 is formed in the center of the positioning plate 51 for the driving screw 31 to pass through, the diameters of the mounting hole 50 and the through hole 510 are R1 and R2, respectively, the inner diameter of the bearing 52 is R3, R1 > R2 > R3, and the inner hole of the bearing 52 is fittingly mounted on the journal of the driving screw 31.

When the bearing is installed, the bearing 52 is installed in the installation hole 50, the outer ring of the bearing is matched with the installation hole 50, the transmission screw 31 is arranged in the inner hole of the bearing 52 in a penetrating mode, the outer diameter of the position, where the bearing is installed, of the transmission screw 31 is matched with the inner diameter R3 of the bearing 52, and the diameter R1 of the through hole 510 is larger than the inner diameter R3 of the bearing 52, so that the through hole 510 is not in contact with the transmission screw 31, and sliding friction is avoided.

Preferably, the positioning disc 51 is formed by integrally molding a large-diameter outer cylinder 511 and a small-diameter inner cylinder 512 into a T-shaped circular truncated cone structure, the end surface of the outer cylinder 511 abuts against the sleeve assembly 1, and the inner cylinder 512 is inserted into the sleeve assembly 1.

Preferably, the bearing 52 is provided as a deep groove ball bearing.

Preferably, as shown in fig. 2, the rear end support mechanism further comprises a belleville spring 61 and a thrust bearing assembly 62 coaxially sleeved on the rear end journal of the transmission screw 31, wherein the belleville spring 61, the positioning assembly 5 and the thrust bearing assembly 62 are sequentially installed from inside to outside and jointly form the rear end support mechanism 6.

Preferably, as shown in fig. 1, the transmission mechanism 3 further includes a transmission nut 32 for driving the inner tube assembly 2 to translate along the length direction of the sleeve assembly 1, and the transmission nut 32 is threadedly sleeved on the transmission screw 31 and is in threaded fit connection with the rear end of the inner tube assembly 2.

Preferably, the front end of the drive screw 31 is further provided with a front end positioning mechanism 7.

The working process is as follows:

when the sleeve pipe assembly 1 works, the driving unit 4 drives the transmission screw rod 31 to do rotary motion, so that relative motion is generated between the transmission nut 32 and the transmission screw rod 31, the transmission nut 32 is fixedly connected with one end of the inner pipe assembly 2 through threads, and the inner pipe assembly 2 is driven to do linear reciprocating motion in the sleeve pipe assembly 1; when the positioning disc works, the transmission screw 31 and the bearing 52 form relative rotation movement and generate rolling friction force, so that the sliding friction force between the positioning disc and the thrust plate is effectively reduced, and the abrasion between parts is reduced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a wear-resisting type electric putter, includes sleeve subassembly (1), the cover is located in sleeve subassembly (1) and the front end runs through inner tube subassembly (2) that sleeve subassembly (1) stretches out, be used for driving drive inner tube subassembly (2) are telescopic motion's drive mechanism (3) and with drive unit (4) of the rear end fixed connection of sleeve subassembly (1), drive mechanism (3) are located including the cover drive screw (31) in inner tube subassembly (2), its characterized in that still includes coaxial cover and locates locating component (5) on drive screw (31) rear end axle journal, locating component (5) include with positioning disk (51) that the tip of sleeve subassembly (1) contradicts the connection and install in bearing (52) in positioning disk (51).

2. A wear-resistant electric putter according to claim 1, wherein a non-through mounting hole (50) is coaxially opened inwardly along an axial direction of an end surface of the positioning plate (51), and the bearing (52) is mounted in the mounting hole (50).

3. The wear-resistant electric push rod is characterized in that a through hole (510) for the transmission screw rod (31) to penetrate through is formed in the center of the positioning disc (51), the diameters of the mounting hole (50) and the through hole (510) are R1 and R2 respectively, the inner diameter of the bearing (52) is R3, R1 is greater than R2 is greater than R3, and the inner hole of the bearing (52) is mounted on the journal of the transmission screw rod (31) in a matching mode.

4. A wear-resistant electric putter according to claim 2, characterized in that the positioning plate (51) is formed by an outer cylinder (511) with a large diameter and an inner cylinder (512) with a small diameter being formed integrally into a T-shaped circular truncated cone structure, the end surface of the outer cylinder (511) abutting against the bushing assembly (1), and the inner cylinder (512) being fitted into the bushing assembly (1).

5. A wear-resistant electric putter according to claim 1, characterized in that the bearings (52) are arranged as deep groove ball bearings.

6. The wear-resistant electric push rod is characterized by further comprising a belleville spring (61) and a thrust bearing assembly (62) which are coaxially sleeved on a rear end journal of the transmission screw rod (31), wherein the belleville spring (61), the positioning assembly (5) and the thrust bearing assembly (62) are sequentially installed from inside to outside and jointly form a rear end supporting mechanism (6).

7. The wear-resistant electric push rod according to claim 1, wherein the transmission mechanism (3) further comprises a transmission nut (32) for driving the inner tube assembly (2) to translate along the length direction of the sleeve assembly (1), and the transmission nut (32) is threadedly sleeved on the transmission screw rod (31) and is threadedly engaged with the rear end of the inner tube assembly (2).

8. A wear-resistant electric putter according to claim 1, characterized in that the front end of the drive screw (31) is further provided with a front end positioning mechanism (7).