CN205605753U - Ball screw with scrape brush module - Google Patents

Abstract

The utility model discloses a ball screw with scrape brush module, it contains: a screw rod, a nut, it has a through -hole that supplies this screw rod cover to establish, and the both ends of this through -hole are equipped with a mounting groove respectively, and the outer fringe face of this nut runs through perforation a plurality of and this mounting groove intercommunication, two scrape the brush mould splits do not installs in the mounting groove, should scrape the brush module and contain an annular fixed lid and an annular scraping and brushing device, should fixed lid has should a fenestrate fixed part and a portion of holding, and this fixed part is formed by a class groove and with the screw hole of this class's groove intercommunication, should the portion of holding provide this scraping and brushing device setting wherein, and this scraping and brushing device's axle orientation thickness is greater than this axle orientation thickness that holds, a plurality of mountings comprise this somatic part and screw portion, and this somatic part has the face that leans on that holds, and this somatic part appearance is located this perforation and should be held and lean on face system to leaning on in this class groove, and this screw portion closes in order will fix the lid location most likely with this screw hole spiral shell.

Description

There is the ball screw of wiper module

Technical field

This utility model is relevant with a kind of scraping brushing device fixed form, particularly relates to a kind of ball screw with wiper module.

Background technology

Ball screw is the rolling utilizing ball, drive screw rod and nut relative displacement, and there is low friction and high-accuracy advantage, if having any dust or break flour to enter, will impact the effect of ball screw with precision, therefore dust prevention just becomes critically important；For this, develop many technology dust-proof about ball screw on the market, one of which is as shown in Figure 4, one scraping brushing device B in the form of a ring is set in one end of a nut A, this nut A is radially offering two relative screw A1, and lock with a screw A2 respectively and pass two this screw A1, two-screw A2 is clamped this scraping brushing device B by both sides again, this scraping brushing device B is made to be fixed in this nut A, in so rolling channel C1 of the screw rod C that the lip B1 of this scraping brushing device B just can be contained in this ball screw, when this ball screw action, the lip B1 of this scraping brushing device B can strike off the function of foreign body along with the generation in this rolling channel C1 that rotates of this screw rod C, additionally, can prevent dust or break flour from entering this rolling channel C1, this ball screw is allowed to be maintained under clean state, and can start accurately.

nullBut after actually used，Find that this kind of scraping brushing device B still has a following number of drawbacks: one、This scraping brushing device B is when installing，But should with this screw rod C be maintained at extremely close to not in contact with position，It is only optimal state，But sealed power and the degree of depth are quite difficult to be controlled，If the degree of depth that two-screw A2 locks this screw A1 is the deepest，This scraping brushing device B can be oppressed by both sides，The lip B1 making this scraping brushing device B oppresses the rolling channel C1 of this screw rod C and produces false precompressed [note: false precompressed refers to not screw rod to ball screw、The adjustment of the catch cropping precompression of nut and ball，But the active force of this rolling channel C1 is oppressed because of this lip B1，Allow user be mistakenly considered ball screw and there is precompression，But this precompression is temporary，Because after this lip B1 such as wears away with rolling channel C1，This precompression will disappear and then draw the precision that the equipment that rings runs]，When this screw rod C rotates，This lip B1 will not stop friction in this rolling channel C1，The material of this scraping brushing device B is the hardness such as the plastics material less than metal mostly，When not stopping friction，This lip B1 will deform because of high delivery in hot weather heat，Or it is grated generation dust，The damage or the dust that cause this scraping brushing device B affect the problems such as start precision.

If two, to lock the degree of depth of this screw A1 the most shallow for two-screw A2, this scraping brushing device B the most easily produces the problem such as drop that gets loose；Time three, owing to assembling this scraping brushing device B, must first calibrate this scraping brushing device B, in the lip B1 making this scraping brushing device B is contained in the rolling channel C1 of this screw rod C and between keep a gap, adjust the degree of depth that two-screw A2 locks the most again, to avoid producing between this lip B1 with this rolling channel C1 contacting, therefore often must repeat to test when assembling several times could be successful, has the most also elongated and has assembled the time that this scraping brushing device B is spent, has caused extra cost to waste.Therefore this scraping brushing device B there are still disappearance urgently to be resolved hurrily, and the design people is just improved for this.

Utility model content

The purpose of this utility model is to provide a kind of ball screw with wiper module that can prevent false precompressed from producing.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of ball screw with wiper module, it is characterised in that comprise a: screw rod, it is strip structure, and the outer edge surface of this screw rod is provided with spiral helicine rolling channel；One nut, it has the through hole that this screw rod of confession is sheathed, and the inner edge surface of this through hole is provided with the rolling groove of this rolling channel relatively, and this rolling channel and rolling groove constitute a load path, this through hole be respectively arranged at two ends with a mounting groove, the outer edge surface of this nut runs through multiple perforation connected with this mounting groove；This load path is located at by multiple rolling elements；Two wiper modules are respectively arranged in this mounting groove, this wiper module comprises a ring-type fixing lid and a ring-type scraping brushing device, this fixing lid has the fixed part that should bore a hole and a receiving portion, this fixed part is made up of class's groove and the screwed hole that connects with this class's groove, this receiving portion provides this scraping brushing device to arrange wherein, and the axial thickness of this scraping brushing device is more than the axial thickness of this receiving portion；Multiple fixtures are to be made up of body and threaded portion, and this body has a breasting face, and this body is located in this perforation and this breasting face is resisted against this class's groove, and this threaded portion and this screwed hole screw togather with by this fixing lid location.

After using such scheme, this utility model has the ball screw setting by this wiper module of wiper module, making to fix this scraping brushing device is to suppress this scraping brushing device by this fixing lid, and this fixing lid is to be located by these fixtures multiple, and this fixture is because being mutually arranged of this breasting face and class's groove, therefore this fixture will not directly contact with this scraping brushing device, therefore this scraping brushing device can be avoided to have the generation of false precompression.

Accompanying drawing explanation

Fig. 1 is the system diagram that this utility model has the ball screw of wiper module.

Fig. 2 is the constitutional diagram that this utility model has the ball screw of wiper module.

Fig. 3 is the direction of principal axis sectional view that this utility model has the ball screw of wiper module.

Fig. 4 is the direction of principal axis sectional view that known techniques has the ball screw of scraping brushing device.

Wherein:

Prior art

A nut

A1 screw

A2 screw

B scraping brushing device

B1 lip

C screw rod

C1 rolling channel

The present invention

1 screw rod

11 rolling channels

2 nuts

21 perforation

22 through holes

221 rolling grooves

23 mounting grooves

3 fixtures

31 bodies

32 abutment faces

33 threaded portions

4 fixing lids

41 fixed parts

411 class's grooves

412 screwed holes

42 receiving portions

5 scraping brushing devices

51 lips

6 rolling elements

H, T thickness.

Detailed description of the invention

In order to the technical solution of the utility model is explained further, below by specific embodiment, the utility model is elaborated.

Referring to shown in Fig. 1 to Fig. 3, this utility model is a kind of ball screw having wiper module, comprises: a screw rod 1, and it is strip structure, and the outer edge surface of this screw rod 1 is provided with spiral helicine rolling channel 11；One nut 2, it has the through hole 22 that this screw rod of confession is sheathed, the inner edge surface of this through hole 22 is provided with the rolling groove 221 of this rolling channel 11 relatively, this rolling channel 11 constitutes a load path with rolling groove 221, the two ends system of this through hole 22 is respectively equipped with a mounting groove 23, and the outer edge surface of this nut 2 runs through multiple perforation 21 connected with this mounting groove 23；This load path is located at by multiple rolling elements 6；Two wiper modules are respectively arranged in this mounting groove 23, this wiper module comprises ring-type fixing lid 4 and a ring-type scraping brushing device 5, this fixing lid 4 have to should bore a hole 21 fixed part 41 and a receiving portion 42, this fixed part 41 is made up of class's groove 411 and the screwed hole 412 that connects with this class's groove 411, this receiving portion 42 provides this scraping brushing device 5 to arrange wherein, this scraping brushing device 5 is provided with the lip 51 protruded out towards this rolling channel, and the axial thickness T of this scraping brushing device 5 is more than the axial thickness H of this receiving portion 42；Multiple fixtures 3 are to be made up of body 31 and threaded portion 33, this body 31 has a breasting face 32, this body 31 is located in this perforation 21 respectively, and this breasting face 32 is resisted against this class's groove 411, and this threaded portion 33 and this screwed hole 412 screw togather with by this fixing lid 4 location.

Combine institute above-mentioned, this utility model has practicality should be the most unquestionable, in addition, at the feature technology gone out disclosed by this case embodiment, in application before and do not seen all publications, the most be not disclosed use, not only there is the fact that effect described above is promoted, have more can not be indiscreet and negligent additional benefit.

Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitably change that it is done by any person of an ordinary skill in the technical field or modify, all should be regarded as without departing from patent category of the present utility model.

Claims (1)

1. a ball screw with wiper module, it is characterised in that comprise a: screw rod, it is strip structure, and the outer edge surface of this screw rod is provided with spiral helicine rolling channel；One nut, it has the through hole that this screw rod of confession is sheathed, and the inner edge surface of this through hole is provided with the rolling groove of this rolling channel relatively, and this rolling channel and rolling groove constitute a load path, this through hole be respectively arranged at two ends with a mounting groove, the outer edge surface of this nut runs through multiple perforation connected with this mounting groove；This load path is located at by multiple rolling elements；Two wiper modules are respectively arranged in this mounting groove, this wiper module comprises a ring-type fixing lid and a ring-type scraping brushing device, this fixing lid has the fixed part that should bore a hole and a receiving portion, this fixed part is made up of class's groove and the screwed hole that connects with this class's groove, this receiving portion provides this scraping brushing device to arrange wherein, and the axial thickness of this scraping brushing device is more than the axial thickness of this receiving portion；Multiple fixtures are to be made up of body and threaded portion, and this body has a breasting face, and this body is located in this perforation and this breasting face is resisted against this class's groove, and this threaded portion and this screwed hole screw togather with by this fixing lid location.