CN216742683U

CN216742683U - Ball screw variable stroke mechanism that suitability is strong

Info

Publication number: CN216742683U
Application number: CN202122843286.8U
Authority: CN
Inventors: 朱蒙
Original assignee: Suzhou Qiaowo Automation Technology Co ltd
Current assignee: Suzhou Qiaowo Automation Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-06-14
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a ball screw variable stroke mechanism with strong applicability, which comprises a screw main body, wherein a ball screw shell is embedded and installed on the outer side of the screw main body, telescopic rods are embedded and installed at two ends of the screw main body, a connecting groove is formed in the top end of each telescopic rod, nuts are installed on the outer wall of the ball screw shell, protective sleeves are installed at two ends of each nut, and an installation plate is installed at the tops of the nuts. The telescopic rod can be limited through the limiting sleeve, the stability of the telescopic rod is guaranteed, the telescopic rod can move on the inner side of the lead screw main body, the installation length of the lead screw main body is increased by adjusting the length of the telescopic rod, the lead screw main body can be installed at different installation positions, the use by workers is facilitated, after the telescopic rod is adjusted, the telescopic rod is fixed through rotating the fixing bolt, and the stability of the telescopic rod is guaranteed.

Description

Ball screw variable stroke mechanism that suitability is strong

Technical Field

The utility model relates to the technical field of ball screws, in particular to a ball screw stroke-variable mechanism with high applicability.

Background

Ball is the ideal product that turns into rotary motion with rotary motion, or turns into rotary motion with linear motion, ball is the transmission element that uses most often on instrument machinery and precision machine, its main function is to convert rotary motion into linear motion, or convert the moment of torsion into axial repetitive force, have high accuracy concurrently simultaneously, reversibility and efficient characteristics, owing to have very little frictional resistance, ball is widely used in various industrial equipment and precision instrument, but current ball is when using the use, mostly do not possess adjustment mechanism, make ball can not use in different equipment, inconvenient staff uses.

The ball screw in the prior art has the following defects:

1. patent document CN207454685U discloses a ball screw variable stroke mechanism, which includes a retaining ring connected to the outer end of the ball screw, the retaining ring at the outer end of the ball screw moves outward by a distance S, and an adjusting shim is mounted on the position where the retaining ring moves out and clings to the retaining ring, the thickness of the adjusting shim is H, and H is equal to S. The structure is simple, the manufacture, the installation and the adjustment are easy, the production cost is low, but the problem that the mass production is not facilitated is solved for an automobile part production factory, the stroke of the part can be adjusted within a certain range, the variable stroke is realized, the ball screw has universality, the production, the management and the adaptation are convenient, the ball screw is matched with hydraulic cylinders and air cylinders of different types for use, dies, tools and the like are saved for a manufacturer, and the spare parts with various varieties and different specifications are not required to be produced for spare parts;

2. ball among the prior art does not possess protection machanism mostly when using the use for ball receives external disturbance and damages easily, leads to ball's life not long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ball screw stroke-variable mechanism with strong applicability so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme that the ball screw stroke-variable mechanism with strong applicability comprises a screw rod main body, wherein a ball screw shell is embedded and installed on the outer side of the screw rod main body;

telescopic rods are embedded at two ends of the screw rod main body, and connecting grooves are formed in the top ends of the telescopic rods;

the ball screw is characterized in that a nut is installed on the outer wall of the ball screw shell, protective sleeves are installed at two ends of the nut, and an installation plate is installed at the top of the nut.

Preferably, the two ends of the screw rod main body are provided with limiting sleeves, the limiting sleeves are located on the outer sides of the telescopic rods, the top of each limiting sleeve is provided with a fixing bolt in a penetrating mode, and the outer wall of the screw rod main body is provided with a positioning hole a.

Preferably, the connecting sleeves are installed at two ends of the ball screw shell, the positioning holes b are formed in the outer wall of each connecting sleeve, and the thread grooves are formed in the outer wall of the ball screw shell.

Preferably, the outer wall of the telescopic rod is provided with a rotating shaft.

Preferably, the inner side of the connecting groove is connected with a connecting rod through threads, and the top end of the connecting rod is provided with a connecting plate a.

Preferably, a scraper is mounted on the inner wall of the protective sleeve, and the scraper is embedded inside the thread groove.

Preferably, the top of the mounting plate is provided with a connecting plate b.

Compared with the prior art, the utility model has the following beneficial effects:

1. the telescopic rod can be limited through the limiting sleeve, the stability of the telescopic rod is guaranteed, the telescopic rod can move on the inner side of the lead screw main body, the installation length of the lead screw main body is increased by adjusting the length of the telescopic rod, the lead screw main body can be installed at different installation positions, the use by workers is facilitated, after the telescopic rod is adjusted, the telescopic rod is fixed through rotating the fixing bolt, and the stability of the telescopic rod is guaranteed.

2. According to the utility model, the joint of the nut and the screw rod shell can be sealed through the protective sleeve, dust is prevented from entering the inner side of the nut, so that the nut is protected, the scraper is embedded in the inner side of the thread groove, when the nut moves on the outer wall of the screw rod shell, dust scraps on the inner side of the thread groove on the outer wall of the ball screw rod shell can be scraped through the scraper, so that the dust scraps are prevented from entering the inner side of the nut, the ball on the inner side of the nut is prevented from being damaged, the nut cannot be normally used, and the service life of the nut is prolonged.

Drawings

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

FIG. 2 is a schematic view of the main structure of the ball screw of the present invention;

FIG. 3 is a schematic view of a ball screw housing according to the present invention;

fig. 4 is a schematic structural view of the nut of the present invention.

In the figure: 1. a lead screw body; 101. a limiting sleeve; 102. a fixing bolt; 103. positioning holes a; 2. a ball screw housing; 201. connecting sleeves; 202. positioning holes b; 3. a telescopic rod; 301. a rotating shaft; 302. connecting grooves; 303. a connecting rod; 304. a connecting plate a; 4. a nut; 401. a protective sleeve; 402. a squeegee; 5. mounting a plate; 501. and (b) a connecting plate.

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 of the 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 "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be 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, 3 and 4, a ball screw stroke-variable mechanism with high applicability;

the first embodiment is as follows: the lead screw comprises a lead screw body 1, limiting sleeves 101 are mounted at two ends of the lead screw body 1, the limiting sleeves 101 are located on the outer side of a telescopic rod 3, fixing bolts 102 are mounted at the top of the limiting sleeves 101 in a penetrating manner, positioning holes a103 are formed in the outer wall of the lead screw body 1, the telescopic rod 3 can be limited through the limiting sleeves 101, the stability of the telescopic rod 3 is guaranteed, the telescopic rod 3 can move on the inner side of the lead screw body 1, the mounting length of the lead screw body 1 is increased by adjusting the length of the telescopic rod 3, the lead screw body 1 can be mounted at different mounting positions, the use by workers is facilitated, after the telescopic rod 3 is adjusted, the telescopic rod 3 is fixed by rotating the fixing bolts 102, the stability of the telescopic rod 3 is guaranteed, the telescopic rods 3 are mounted at the two ends of the lead screw body 1 in an embedded manner, rotating shafts 301 are mounted on the outer wall of the telescopic rod 3, and connecting grooves 302 are formed in the top end of the telescopic rod 3, the inboard of spread groove 302 has connecting rod 303 through threaded connection, connecting plate a304 is installed on the top of connecting rod 303, be connected with external device through pivot 301, make the drive nut 4 that lead screw main part 1 can be normal remove, can provide the mounted position for connecting rod 303 through spread groove 302, can provide the mounted position for connecting plate a304 through connecting rod 303, guarantee the stability of connecting plate a304, can be connected with external drive arrangement through connecting plate a304, guarantee that lead screw main part 1 can be normal rotates.

Referring to fig. 1, 2 and 4, a ball screw variable stroke mechanism with high applicability;

example two: the ball screw comprises a screw body 1, a ball screw shell 2 is embedded and installed on the outer side of the screw body 1, connecting sleeves 201 are installed at two ends of the ball screw shell 2, a positioning hole b202 is formed in the outer wall of each connecting sleeve 201, a thread groove is formed in the outer wall of each ball screw shell 2, each ball screw shell is connected with the ball screw body 1 through the corresponding connecting sleeve 201, and then the corresponding positioning hole b202 and the corresponding positioning hole a103 penetrate through bolts, so that the ball screw shells 2 are fixed on the outer wall of the screw body 1, the stability of the ball screw shells 2 is guaranteed, when the ball screw shells 2 are damaged, workers can conveniently detach the ball screw shells 2 to replace the ball screw shells 2, the workers can conveniently maintain the ball screw shells, nuts 4 are installed on the outer walls of the ball screw shells 2, protective sleeves 401 are installed at two ends of the nuts 4, scraper plates 402 are installed on the inner walls of the protective sleeves 401, and the scraper plates 402 are embedded and installed on the inner sides of the thread grooves, the joint of the nut 4 and the lead screw shell 2 can be sealed through the protective sleeve 401, dust is prevented from entering the inner side of the nut 4, thereby protecting the nut 4, when the nut 4 moves on the outer wall of the screw housing 2 by fitting the scraper 402 to the inside of the thread groove, dust and debris on the inner side of the thread groove of the outer wall of the ball screw housing 2 can be scraped off by the scraper 402, thereby preventing dust and debris from entering the inner side of the nut 4 to cause damage to the balls on the inner side of the nut 4, so that the nut 4 cannot be normally used, prolonging the service life of the nut 4, the top of the nut 4 is provided with a mounting plate 5, the top of the mounting plate 5 is provided with a connecting plate b501, the mounting plate 5 can provide a mounting position for the connecting plate b501, ensure the stability of the connecting plate b501, the ball screw can be connected with an external device through the connecting plate b501, and the stability of connection between the ball screw and the external device is guaranteed.

The working principle is that the telescopic rod 3 can be limited by the limiting sleeve 101, the stability of the telescopic rod 3 is ensured, the telescopic rod 3 can move on the inner side of the lead screw main body 1, the installation length of the lead screw main body 1 is increased by adjusting the length of the telescopic rod 3, after the telescopic rod 3 is adjusted, the telescopic rod 3 is fixed by rotating the fixing bolt 102, the stability of the telescopic rod 3 is ensured, the lead screw main body 1 can be connected with an external device through the rotating shaft 301, the lead screw main body 1 can normally drive the nut 4 to move, the connecting groove 302 can provide the installation position for the connecting rod 303, the connecting rod 303 can provide the installation position for the connecting plate a304, the stability of the connecting plate a304 is ensured, the connecting plate a304 can be connected with an external driving device, the joint of the nut 4 and the lead screw shell 2 can be sealed through the protecting sleeve 401, and dust is prevented from entering the inner side of the nut 4, thereby protect nut 4, through the inboard of scraper blade 402 gomphosis at the thread groove, nut 4 when the outer wall of screw shell 2 removes, can scrape the dust piece of the inboard of the outer wall thread groove of ball shell 2 through scraper blade 402, be connected with ball screw main part 1 through adapter sleeve 201, rethread bolt runs through locating hole b202 and locating hole a103, thereby fix ball screw shell 2 at the outer wall of screw main part 1, guarantee ball screw shell 2's stability, when ball screw shell 2 damages, and be convenient for the staff to dismantle ball screw shell 2, can provide the mounted position for connecting plate b501 through mounting panel 5, guarantee connecting plate b 501's stability, can be connected with external device through connecting plate b501, guarantee the stability that ball screw and external device are connected.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a ball screw variable stroke mechanism that suitability is strong, includes lead screw main part (1), its characterized in that: a ball screw shell (2) is embedded and installed on the outer side of the screw rod main body (1);

telescopic rods (3) are embedded and installed at two ends of the screw rod main body (1), and connecting grooves (302) are formed in the top ends of the telescopic rods (3);

nut (4) are installed to the outer wall of ball screw shell (2), lag (401) are installed at the both ends of nut (4), mounting panel (5) are installed at the top of nut (4).

2. The ball screw variable stroke mechanism with high applicability according to claim 1, wherein: stop collar (101) are installed at the both ends of lead screw main part (1), and stop collar (101) are located the outside of telescopic link (3), and gim peg (102) are installed in running through at the top of stop collar (101), and locating hole a (103) have been seted up to the outer wall of lead screw main part (1).

3. The ball screw variable stroke mechanism with high applicability according to claim 1, wherein: the connecting sleeves (201) are installed at two ends of the ball screw shell (2), positioning holes b (202) are formed in the outer walls of the connecting sleeves (201), and thread grooves are formed in the outer walls of the ball screw shell (2).

4. The ball screw variable stroke mechanism with high applicability according to claim 1, wherein: the outer wall of the telescopic rod (3) is provided with a rotating shaft (301).

5. The ball screw variable stroke mechanism with high applicability according to claim 1, wherein: the inner side of the connecting groove (302) is connected with a connecting rod (303) through threads, and a connecting plate a (304) is installed at the top end of the connecting rod (303).

6. The ball screw variable stroke mechanism with high applicability according to claim 1, wherein: a scraper (402) is installed on the inner wall of the protective sleeve (401), and the scraper (402) is embedded on the inner side of the thread groove.

7. The ball screw variable stroke mechanism with high applicability according to claim 1, wherein: and a connecting plate b (501) is arranged at the top of the mounting plate (5).