CN219994309U - External ball screw circulator fixing structure - Google Patents

Abstract

The utility model discloses an externally-mounted ball screw circulator fixing structure which comprises a screw, wherein a nut is arranged outside the screw, the outer wall of the nut is connected with a mounting block, the mounting block is provided with a mounting groove, two sides of the inner wall of the mounting groove are provided with clamping structures, and a circulator for balls is arranged in the mounting groove. This externally-mounted ball screw circulator fixed knot constructs for this device need not fix with the help of screw and instrument to the fixed knot of circulator constructs, can accomplish the quick installation of circulator and nut through the block structure, and when dismantling the same reason, through control block structure, can take off the maintenance fast with the circulator and change, thereby improved maintenance efficiency, and the setting of louvre on the circulator, when making the ball pass through the circulator, can effectually distribute the heat of production to the external world from the centre through the louvre, reduce inside thermal accumulation, reduce and influence positioning accuracy and operating stability.

Description

External ball screw circulator fixing structure

Technical Field

The utility model relates to the technical field of ball screw circulators, in particular to an externally-mounted ball screw circulator fixing structure.

Background

The ball screw pair is a transmission device for mutually converting linear motion and rotary motion. When the screw rod rotates, the ball rotates in the roller path and circularly moves along the roller path, so that the friction loss is small, the transmission efficiency is high, the movement is stable, low-speed crawling is not easy to generate, and the transmission precision is high; after the screw nuts are pre-tightened, gaps can be completely eliminated, transmission rigidity is improved, and two common ball circulation modes are adopted: the balls sometimes come out of contact with the screw during circulation, known as outer circulation; the internal circulation is always kept in contact with the screw rod. The inner circulation structure is represented by a circular reverser and an elliptical reverser, and the outer circulation structure is represented by a cannula.

However, when the existing externally-mounted ball screw circulator is installed and used, the circulator is often screwed through a screw, the circulator is required to be replaced after faults occur or the durability is reduced to a certain extent, the installation mode of the screw is more troublesome to install and detach, the operation and the control are often required by means of tools such as a screwdriver, the operation and the control are inconvenient, the balls continuously move in the nut and the circulator to rub, a large amount of heat accumulation can be generated, the heat accumulation cannot be discharged, the positioning precision and the operation stability are affected easily due to thermal expansion, and the existing circulator does not have a function of radiating the balls.

Aiming at the problems, innovative design is urgently needed on the basis of the original circulator fixing structure.

Disclosure of Invention

Aiming at the technical problem that the prior art is too single, the technical scheme of the utility model provides a fixing structure of an externally-mounted ball screw circulator, which is obviously different from the prior art, so as to solve the problems that the prior art proposes continuous moving friction of balls in a nut and the circulator, a large amount of heat accumulation can be generated, and the problem that the positioning precision and the operation stability are affected due to thermal expansion can not be discharged easily.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an external ball circulator fixed knot constructs, includes the lead screw, install the nut outward the lead screw, nut outer wall connection has the installation piece, and has seted up the mounting groove on the installation piece, mounting groove inner wall both sides are provided with the block structure, install the circulator that is used for the ball in the mounting groove, the circulator both sides are connected with the butt board, the terminal surface laminating respectively in block structure and mounting groove about the butt board, intensively seted up the louvre that is used for carrying out the heat dissipation when the ball passes through on the circulator

Preferably, the mounting block is arranged in a rectangular structure, and is obliquely mounted on the outer wall of the nut.

Preferably, the block structure includes spout, reset spring, fixture block and pull rod, a plurality of spouts have all been seted up to mounting groove inner wall both sides, and all are connected with a reset spring in every spout, every reset spring tip all is connected with a fixture block, and every fixture block tip all runs through the spout and is located the mounting groove, every the fixture block other end is connected with the pull rod, and the pull rod runs through the mounting block outer wall.

Preferably, one end of the clamping block located in the mounting groove is far away from one side of the screw rod and is of an arc-shaped structure, and the clamping block is connected with the sliding groove in a clamping mode.

Preferably, the circulator is arranged to be of a hollow U-shaped structure, holes penetrating through the inner wall of the nut are formed in the two ends of the mounting groove, and the two ends of the circulator are respectively inserted into the corresponding holes, so that balls can be conveniently transmitted.

Compared with the prior art, the utility model has the beneficial effects that: this externally-mounted ball screw circulator fixed knot constructs, through the setting of installation piece, the mounting groove, the block structure, the circulator, butt board and louvre, make this device need not fix with the help of screw and instrument to the fixed knot of circulator construct, install fast through block structure can accomplish circulator and nut, and when dismantling the same reason, through control block structure, can take off the maintenance fast with the circulator and change, thereby maintenance efficiency has been promoted, and the setting of louvre on the circulator, when making the ball pass through the circulator, can effectually distribute the heat of production from the centre of the follow outside through the louvre, reduce the accumulation of inside heat, reduce and influence positioning accuracy and operating stability.

Drawings

FIG. 1 is a schematic diagram of the structure of the circulator in front view in the installed state;

FIG. 2 is a schematic elevational view of the circulator of the utility model in an uninstalled state;

FIG. 3 is a schematic cross-sectional elevation view of the circulator of the utility model in an uninstalled state;

FIG. 4 is a schematic cross-sectional view of a mounting block of the present utility model;

FIG. 5 is a schematic view of a mounting block according to the present utility model;

FIG. 6 is a schematic view of the structure of the circulator of the utility model.

In the figure: 1. a screw rod; 2. a nut; 3. a mounting block; 4. a mounting groove; 5. a clamping structure; 501. a chute; 502. a return spring; 503. a clamping block; 504. a pull rod; 6. a circulator; 7. an abutting plate; 8. and the heat dissipation holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides an external ball circulator fixed knot constructs, including lead screw 1, nut 2, installation piece 3, mounting groove 4, joint structure 5, spout 501, reset spring 502, fixture block 503, pull rod 504, circulator 6, butt plate 7 and louvre 8, install nut 2 outward in lead screw 1, nut 2 outer wall connection has installation piece 3, and mounting groove 4 has been seted up on the installation piece 3, mounting groove 4 inner wall both sides are provided with joint structure 5, install the circulator 6 that is used for the ball in the mounting groove 4, circulator 6 both sides are connected with butt plate 7, butt plate 7 up and down the terminal surface laminating respectively in joint structure 5 and mounting groove 4, densely offer on the circulator 6 and be used for the ball to carry out radiating louvre 8 when passing through

The mounting block 3 is provided in a rectangular structure, and the mounting block 3 is obliquely mounted on the outer wall of the nut 2.

The clamping structure 5 comprises a sliding groove 501, a reset spring 502, clamping blocks 503 and a pull rod 504, wherein a plurality of sliding grooves 501 are formed in two sides of the inner wall of the installation groove 4, each sliding groove 501 is internally connected with one reset spring 502, the end part of each reset spring 502 is connected with one clamping block 503, the end part of each clamping block 503 penetrates through the sliding groove 501 and is located in the installation groove 4, the other end of each clamping block 503 is connected with the pull rod 504, and the pull rod 504 penetrates through the outer wall of the installation block 3.

One end of the clamping block 503, which is located in the mounting groove 4 and is far away from the screw 1, is of an arc-shaped structure, and the clamping block 503 is in clamping connection with the sliding groove 501.

The circulator 6 is arranged into a hollow U-shaped structure, holes penetrating through the inner wall of the nut 2 are formed in the two ends of the mounting groove 4, and the two ends of the circulator 6 are respectively inserted into the corresponding holes, so that balls can be conveniently transmitted.

Working principle: according to the illustration of fig. 1, first, along with the transmission work of lead screw 1 and nut 2, the ball can move in nut 2 and circulator 6, when the need overhauls the change to circulator 6, drive fixture block 503 through pulling pull rod 504 and move in spout 501, reset spring 502 atress compression, make fixture block 503 break away from the spacing to butt plate 7, thereby make circulator 6 break away from the constraint, take out circulator 6 and butt plate 7 from mounting groove 4, overhaul, loosen pull rod 504, reset spring 502 promotes fixture block 503 to reset, fixture block 503 arc tip gets into mounting groove 4, will wait to change or overhaul the back non-faulty circulator 6 insert in mounting groove 4, make the arc region contact of butt plate 7 and fixture block 503, squeeze fixture block 503 into spout 501, reset spring 502 compresses, after butt plate 7 bottom and mounting groove 4 bottom contact laminating, the limit side break away from with fixture block 503 contact, reset spring 502 promotes fixture block 503 reset, fixture block 503 tip and butt plate 7 top, thereby reach the purpose of fixing fast to circulator 6, along with the ball removes, produce a large amount of heat, when the circulator 6 is equipped with the heat, this is through setting up through the circulator 6, this is to the heat dissipation device is realized to the heat dissipation device, the heat is fixed to the inside the circulation device is realized through the heat dissipation device, the heat is guaranteed to the outside the circulation device is put through the circulation device is to the circulation has the effect on the heat of the device is mounted on the inside the circulation device is.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an external ball circulator fixed knot constructs, includes lead screw (1), its characterized in that: install nut (2) outward in lead screw (1), nut (2) outer wall connection has installation piece (3), and has seted up mounting groove (4) on installation piece (3), mounting groove (4) inner wall both sides are provided with block structure (5), install circulator (6) that are used for the ball in mounting groove (4), circulator (6) both sides are connected with butt board (7), butt board (7) up and down the terminal surface laminating respectively in block structure (5) and mounting groove (4), densely seted up on circulator (6) and be used for carrying out radiating louvre (8) when the ball passes through.

2. The exterior ball screw circulator fixing structure according to claim 1, wherein: the mounting block (3) is of a rectangular structure, and the mounting block (3) is obliquely mounted on the outer wall of the nut (2).

3. The exterior ball screw circulator fixing structure according to claim 1, wherein: the clamping structure (5) comprises sliding grooves (501), reset springs (502), clamping blocks (503) and pull rods (504), a plurality of sliding grooves (501) are formed in two sides of the inner wall of each mounting groove (4), each sliding groove (501) is internally provided with one reset spring (502), each end part of each reset spring (502) is connected with one clamping block (503), each end part of each clamping block (503) penetrates through each sliding groove (501) to be located in each mounting groove (4), each other end of each clamping block (503) is connected with one pull rod (504), and each pull rod (504) penetrates through the outer wall of each mounting block (3).

4. A housing ball screw circulator fixing structure according to claim 3, wherein: the clamping blocks (503) are arranged in the mounting grooves (4), one sides, far away from the screw rods (1), of the clamping blocks are of arc-shaped structures, and the clamping blocks (503) are connected with the sliding grooves (501) in a clamping mode.

5. The exterior ball screw circulator fixing structure according to claim 1, wherein: the circulator (6) is of a hollow U-shaped structure, holes penetrating through the inner wall of the nut (2) are formed in the two ends of the mounting groove (4), and the two ends of the circulator (6) are inserted into the corresponding holes respectively, so that balls can be conveniently transmitted.