CN213575403U - Screw auxiliary supporting device - Google Patents

Abstract

The utility model discloses a screw rod auxiliary supporting device, it includes the frame, including a motor, an end cap, a controller, and a cover plate, lead screw and lead screw are vice, the motor sets firmly on the frame, lead screw is vice to cooperate with the lead screw, still include guide rail and supporting mechanism, the guide rail sets firmly on the frame, supporting mechanism includes supporting component, supporting component includes the supporting seat, slider and support roller set, the bottom of supporting seat has set firmly the slider, the slider cooperatees with the guide rail, support roller set passes through the bearing and sets up in the top of supporting seat with rotating, the lead screw holds to lean on supporting roller set, and the length direction of supporting roller set axis is parallel with the length. The utility model discloses increase supporting mechanism below the lead screw, come the auxiliary stay lead screw through gliding supporting mechanism on can the guide rail, make the difficult flexural deformation that produces of lead screw, ensure the transmission precision and the life of lead screw, and supporting mechanism's simple structure, use cost are low, simultaneously, set up difficult wearing and tearing, long service life of support roller set on the supporting seat through the bearing rotation ground.

Description

Screw auxiliary supporting device

Technical Field

The utility model relates to the field of mechanical equipment, concretely relates to screw auxiliary supporting device.

Background

The screw mechanism is a device for converting rotary motion into linear motion or converting linear motion into rotary motion, two ends of a screw are supported by a bearing and a bearing seat, a threaded part of the screw is connected with a screw pair in an adaptive mode, the screw is driven to rotate by a motor, and then the screw pair moves along the length direction of the screw. The screw mechanism has the advantages of small friction resistance, high transmission efficiency, sensitive movement, no idle stroke dead zone in reverse direction and the like, and is widely applied to various mechanical equipment.

Can often use long distance driven lead screw among the current mechanical equipment, long lead screw is when carrying out the transmission, because long lead screw's span is great, and it can produce flexural deformation under self action of gravity, not only can lead to the transmission precision decline of lead screw, can make the life reduction of lead screw moreover. In the prior art, structural designs for assisting in supporting the screw rod exist, but most of the designs are complex in structure, high in use cost (if the screw rod needs to be used in a hydraulic or pneumatic matching mode), or short in service life (the screw rod is supported by adopting anti-collision glue and is easy to wear).

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above prior art is not enough, provides a screw auxiliary stay device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a screw auxiliary supporting device, includes frame, motor, lead screw and lead screw pair, the motor set firmly in on the frame, the lead screw along the length direction of frame is laid, and with the spindle of motor links to each other, lead screw pair cooperatees with the lead screw, still includes guide rail and supporting mechanism, the guide rail set firmly in on the frame, and be located the below of lead screw, supporting mechanism includes supporting component, supporting component includes supporting seat, slider and support roller set, the bottom of supporting seat set firmly the slider, the slider with the guide rail cooperatees, support roller set pass through bearing rotation set up in the top of supporting seat, the lead screw bear by in on the support roller set, just the length direction of support roller set axis with the length direction of lead screw axis is parallel.

Furthermore, the supporting mechanism further comprises two connecting rods, the number of the supporting components is two, the connecting rods are used for connecting the two supporting seats of the supporting components, and the screw pair is located between the two supporting components.

Further, the supporting seat includes a seat body, an upper mounting portion and a lower mounting portion, the top of the seat body extends upwards to form two upper mounting portions which are parallel to each other, the supporting roller group is arranged in the upper mounting portion, the bottom of the seat body extends downwards to form the lower mounting portion, a mounting groove is formed in the lower mounting portion, and the sliding block is fixedly arranged in the mounting groove.

Further, the supporting component still includes the pivot, the top of going up the installation department is the arc, along the arc of going up the installation department is provided with a plurality of the pivot, the supporting roller group pass through the bearing set up with rotating in the pivot.

Further, the lower mounting portion is provided with mounting holes in two sides of the mounting groove respectively, and the connecting rods are inserted into the mounting holes respectively.

Further, still include spacing seat, along the length direction of frame has laid two spacing seat, spacing seat is the arch form, is used for the backstop the supporting seat, two all be equipped with the confession on the spacing seat the through port that the lead screw passed.

After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:

1. the utility model discloses increase supporting mechanism below the lead screw, come the auxiliary stay lead screw through gliding supporting mechanism on can the guide rail, make the difficult flexural deformation that produces of lead screw, ensure the transmission precision and the life of lead screw, and supporting mechanism's simple structure, use cost are low, simultaneously, set up difficult wearing and tearing, long service life of support roller set on the supporting seat through the bearing rotation ground.

2. The utility model discloses well supporting mechanism includes two supporting components, connects through the connecting rod between two supporting components, and supporting mechanism carries out the follow-up through the removal on the guide rail to the lead screw and supports, makes whole lead screw all have two supporting components to be playing the supporting role always, further reduces the flexural deformation that the lead screw produced because of the dead weight.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the present invention (with the base removed);

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a perspective view of the support mechanism;

FIG. 5 is an exploded view of the support mechanism;

fig. 6 is a perspective view of the support base.

Description of reference numerals:

a base 100; a motor 200; a lead screw 300; a lead screw pair 400; a guide rail 500;

the support mechanism 600, the support assembly 610, the support base 611, the base body 6111, the upper mounting portion 6112, the lower mounting portion 6113, the mounting groove 6114, the mounting hole 6115, the slider 612, the support roller set 613, the bearing 614, the rotating shaft 615 and the connecting rod 620;

the retainer 700.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

Cooperation fig. 1, fig. 2 and fig. 4 show, the utility model discloses a strutting arrangement is assisted to lead screw, including frame 100, motor 200, lead screw 300 and lead screw pair 400, motor 200 sets firmly on frame 100, and lead screw 300 is laid along the length direction of frame 100 to link to each other with the spindle of motor 200, lead screw pair 400 cooperatees with lead screw 300, still includes guide rail 500 and supporting mechanism 600, and guide rail 500 sets firmly on frame 100, and is located lead screw 300's below, and supporting mechanism 600 includes supporting component 610.

As shown in fig. 2 to 6, the supporting assembly 610 includes a supporting base 611, a sliding block 612 and a supporting roller set 613, the sliding block 612 is fixedly disposed at the bottom of the supporting base 611, the sliding block 612 is engaged with the guide rail 500, the supporting roller set 613 is rotatably disposed at the top of the supporting base 611 through a bearing 614, the screw 300 is supported on the supporting roller set 613, and the length direction of the axis of the supporting roller set 613 is parallel to the length direction of the axis of the screw 300. The supporting mechanism 600 further comprises two connecting rods 620, the number of the supporting components 610 is two, the connecting rods 620 are used for connecting the supporting seats 611 of the two supporting components 610, and the screw pair 400 is located between the two supporting components 610.

The supporting seat 611 includes a seat body 6111, an upper mounting portion 6112 and a lower mounting portion 6113, the top of the seat body 6111 extends upward to form two upper mounting portions 6112 which are parallel to each other, the supporting roller set 613 is disposed in the upper mounting portion 6112, the bottom of the seat body 6111 extends downward to form a lower mounting portion 6113, a mounting groove 6114 is disposed in the lower mounting portion 6113, and the slider 612 is fixedly disposed in the mounting groove 6114.

The support assembly 610 further includes a plurality of rotating shafts 615, the top of the upper mounting portion 6112 is arc-shaped, and a plurality of rotating shafts 615 are arranged along the arc-shaped upper mounting portion 6112, in this embodiment, the number of the rotating shafts 615 is three, and the rotating shafts are distributed in a triangular shape to better support the screw 300, and the support roller group 613 is rotatably arranged on the rotating shafts 615 through bearings 614. The lower mounting portion 6113 is provided with mounting holes 6115 at two sides of the mounting groove 6114, and the connecting rods 620 are inserted into the two mounting holes 6115 respectively.

As shown in fig. 1 to fig. 3, the supporting device further includes a limiting seat 700, two limiting seats 700 are disposed along the length direction of the base 100, the limiting seats 700 are arch-shaped and used for stopping the supporting seat 611, through holes for the lead screw 300 to pass through are disposed on the two limiting seats 700, and the moving positions of the supporting mechanism 600 toward the two ends of the lead screw 300 are limited by the limiting seats 700, so as to ensure the supporting function of the supporting mechanism 600.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. The utility model provides a screw auxiliary stay device, includes frame, motor, lead screw and lead screw pair, the motor set firmly in on the frame, the lead screw along the length direction of frame is laid, and with the spindle of motor links to each other, the lead screw pair cooperatees its characterized in that with the lead screw: still include guide rail and supporting mechanism, the guide rail set firmly in on the frame, and be located the below of lead screw, supporting mechanism includes supporting component, supporting component includes supporting seat, slider and support roller set, the bottom of supporting seat has set firmly the slider, the slider with the guide rail cooperatees, support the roller set through the bearing set up with rotating in the top of supporting seat, the lead screw bear lean on in support the roller set is last, just support the roller set axis the length direction with the length direction of lead screw axis is parallel.

2. The screw assist support apparatus of claim 1, wherein: the supporting mechanism further comprises two connecting rods, the number of the supporting assemblies is two, the connecting rods are used for connecting the two supporting seats of the supporting assemblies, and the screw pair is located between the two supporting assemblies.

3. The screw assist support device of claim 2, wherein: the supporting seat includes seat body, last installation department and installation department down, the top of seat body upwards extends and is formed with two and is parallel to each other go up the installation department, the backing roll group sets up in going up the installation department, the bottom downwardly extending of seat body is formed with installation department down, be provided with the mounting groove in the installation department down, the slider set firmly in the mounting groove.

4. A screw assist support device as set forth in claim 3, wherein: the supporting component further comprises a rotating shaft, the top of the upper installation part is arc-shaped, a plurality of rotating shafts are arranged on the arc-shaped upper installation part, and the supporting roller set is rotatably arranged on the rotating shafts through bearings.

5. A screw assist support device as set forth in claim 3, wherein: the lower installation part is provided with installation holes on two sides of the installation groove respectively, and the connecting rods are inserted into the installation holes respectively.

6. The screw auxiliary support device as claimed in any one of claims 1 to 5, wherein: still include spacing seat, along the length direction of frame has laid two spacing seat, spacing seat is the arch form, is used for the backstop the supporting seat, two all be equipped with the confession on the spacing seat the opening that the lead screw passed.

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