CN215280984U

CN215280984U - Overpressure-preventing centering mechanism for machining T-shaped guide rail planer

Info

Publication number: CN215280984U
Application number: CN202121726447.9U
Authority: CN
Inventors: 庄卫东; 黄涤; 张凯; 刘香松
Original assignee: Marazzi Jiangsu Elevator Guide Rail Co ltd
Current assignee: Marazzi Jiangsu Elevator Guide Rail Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-24
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to the technical field of elevator part manufacturing, in particular to an anti-overvoltage centering mechanism for a planer for processing T-shaped guide rails; comprises a box body which is fixedly arranged on a planer; the two centering rods are arranged in the cavity of the box body; the power rod is rotatably arranged inside the box body; the power rod is provided with a first thread section and a second thread section which are respectively connected with the two centering rods in a threaded penetrating manner, and the thread turning directions are opposite; one end of the power rod extends to the outer side of the box body, a plurality of ratchets are circumferentially arranged, one side surface of each ratchet forms an acute angle with the radial direction of the power rod, and the other side surface of each ratchet is parallel to the radial direction of the power rod; the power motor is fixedly arranged on the box body; one end of the coupler is fixedly connected with an output shaft of the power motor, a plurality of elastic pieces are arranged on the other end of the coupler in the circumferential direction, and clamping teeth are arranged on the elastic pieces and extend into the space between the two ratchets. The utility model aims at providing a processing T type guide rail planer prevent excessive pressure centering mechanism prevents that T type guide rail both sides from producing the indentation.

Description

Overpressure-preventing centering mechanism for machining T-shaped guide rail planer

Technical Field

The utility model relates to an elevator spare part makes technical field, especially relates to a processing T type guide rail planer prevent excessive pressure centering mechanism.

Background

Elevator guide rail is the T type usually, and the elevator leads through the both sides contact of leading boots and T type guide rail, consequently need process the both sides of T type guide rail, improves the straightness accuracy and the surface quality of the both sides of T type guide rail, just enables the elevator and can be more steady at the operation in-process.

The two sides of the T-shaped guide rail are usually machined by using a planer, and the planer can be provided with a centering mechanism for clamping the two sides of the T-shaped guide rail, so that the T-shaped guide rail is kept centered in the machining process.

In view of the above problems, the designer designs an overpressure-proof centering mechanism for a planer for machining a T-shaped guide rail based on practical experience and professional knowledge which are abundant for years in engineering application of such products and by cooperating with the application of the theory and actively carrying out research and innovation, so as to prevent the two sides of the T-shaped guide rail from generating indentations.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a defect to existence among the prior art provides a processing T type guide rail planer prevents excessive pressure centering mechanism, through the cooperation of latch and ratchet, prevents that centering mechanism from producing too big pressure to T type guide rail both sides to prevent that T type guide rail both sides from producing the indentation.

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

the method comprises the following steps: the box body is fixedly arranged on the planer; a cavity is arranged in the box body;

two centering rods arranged in the cavity in parallel and spaced; one end of the centering rod extends to the outer side of the box body and is provided with rotating wheels, and the rotating wheels roll on two sides of the T-shaped guide rail;

the power rod is rotatably arranged inside the box body; the power rod is provided with a first thread section and a second thread section, the first thread section and the second thread section are respectively in threaded penetrating connection with the two centering rods, and the thread directions of the first thread section and the second thread section are opposite; one end of the power rod extends to the outer side of the box body, a plurality of ratchets are circumferentially arranged, one side surface of each ratchet forms an acute angle with the radial direction of the power rod, and the other side surface of each ratchet is parallel to the radial direction of the power rod;

the power motor is fixedly arranged on the box body;

one end of the coupler is fixedly connected with an output shaft of the power motor, a plurality of elastic pieces extending to the ratchets are arranged on the other end of the coupler in the circumferential direction, and clamping teeth are arranged on the elastic pieces and extend into the space between the two ratchets.

Further, still include the guide bar, with power rod is parallel fixed the setting and is in inside the box body, and alternate two the centering rod.

Furthermore, a self-lubricating sleeve is arranged on the centering rod, and the guide rod is inserted into the self-lubricating sleeve.

Furthermore, the centering rod and the power rod are respectively inserted at two ends of the centering rod.

Further, two side surfaces of the latch are parallel to two side surfaces of the ratchet respectively.

Further, the axial length of the ratchet is greater than the axial length of the latch.

Furthermore, the circumference of shaft coupling sets up the guard ring, the flexure strip sets up inside the guard ring, just the guard ring inner wall with form the interval between the flexure strip.

Further, the shaft coupling includes chuck and axle sleeve, the chuck terminal surface with axle sleeve terminal surface fixed connection, the flexure strip sets up on the chuck, the guard ring sets up on the axle sleeve.

Furthermore, the power box further comprises a connecting sleeve, one end of the connecting sleeve is fixedly connected with the outer side of the box body, the other end of the connecting sleeve is fixedly connected with the power motor, and the coupler is arranged in the connecting sleeve.

Through the technical scheme of the utility model, can realize following technological effect:

the anti-overvoltage centering mechanism for machining the T-shaped guide rail planer is designed, and through the matching of the clamping teeth and the ratchet wheel, after the clamping force of the two centering rods on the two sides of the T-shaped guide rail reaches a certain degree, the clamping teeth inclined plane and the ratchet wheel inclined plane slide, the clamping teeth can not continue to drive the ratchet wheel to rotate, namely, the shaft coupling can not drive the power rod to rotate, the two centering rods can not continue to be close to each other, so that the centering mechanism is prevented from generating excessive pressure on the two sides of the T-shaped guide rail, and the two sides of the T-shaped guide rail are prevented from generating indentation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of an overpressure-proof centering mechanism of a planer for machining T-shaped guide rails according to an embodiment of the present invention;

fig. 2 is an exploded view of the overpressure-proof centering mechanism of the planer for machining T-shaped guide rails according to the embodiment of the present invention;

fig. 3 is a side sectional view of the overpressure prevention centering mechanism of the planer for machining T-shaped guide rails according to the embodiment of the present invention;

fig. 4 is a cross-sectional view taken at a point a in fig. 3 according to an embodiment of the present invention;

fig. 5 is an exploded view of the coupling according to the embodiment of the present invention.

Reference numerals: the centering device comprises a box body 1, a centering rod 2, a self-lubricating sleeve 21, a power rod 3, a first thread section 31, a second thread section 32, a ratchet 33, a power motor 4, a coupler 5, an elastic sheet 51, a clamping tooth 52, a protective ring 53, a chuck 54, a shaft sleeve 55, a guide rod 6 and a connecting sleeve 7.

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.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

An overpressure-proof centering mechanism for machining T-shaped guide rail planing machines is shown in figures 1-5 and comprises: the box body 1 is fixedly arranged on the planer; a cavity is arranged in the box body 1; two centering rods 2 which are arranged in the cavity in parallel and spaced; one end of the centering rod 2 extends to the outer side of the box body 1 and is provided with a rotating wheel, and the rotating wheel rolls on two sides of the T-shaped guide rail; the power rod 3 is rotatably arranged in the box body 1; the power rod 3 is provided with a first thread section 31 and a second thread section 32, the first thread section 31 and the second thread section 32 are respectively in threaded penetrating connection with the two centering rods 2, and the thread directions of the first thread section 31 and the second thread section 32 are opposite; one end of the power rod 3 extends to the outer side of the box body 1, a plurality of ratchets 33 are circumferentially arranged, one side surface of each ratchet 33 forms an acute angle with the radial direction of the power rod 3, and the other side surface of each ratchet 33 is parallel to the radial direction of the power rod 3; the power motor 4 is fixedly arranged on the box body 1; one end of the coupler 5 is fixedly connected with an output shaft of the power motor 4, a plurality of elastic pieces 51 extending towards the ratchet teeth 33 are arranged on the circumference of the other end of the coupler 5, clamping teeth 52 are arranged on the elastic pieces 51, and the clamping teeth 52 extend into the interval between the two ratchet teeth 33.

Specifically, the process of clamping the T-shaped guide rail by the centering mechanism is as follows: the power motor 4 rotates to drive the coupler 5 to rotate, so that the latch 52 is attached to the inclined plane of the ratchet 33 to generate friction, the latch 52 can drive the ratchet 33 to rotate, namely the coupler 5 drives the power rod 3 to rotate, the first thread section 31 and the second thread section 32 with opposite thread screwing directions can respectively push the two centering rods 2 to approach each other, the rotating wheels of the two centering rods 2 finally clamp two sides of the T-shaped guide rail, when the clamping force reaches a certain degree, the two centering rods 2 are difficult to approach each other again, so that the power rod 3 is difficult to rotate, at the moment, if the power motor 4 works, the latch 52 can slide on the inclined plane of the ratchet 33 under the driving of the power motor 4 and slide to the next ratchet 33, the elastic sheet 51 can enable the latch 52 to be always attached to the ratchet 33 through elastic deformation, at the moment, the ratchet 52 cannot forcibly drive the ratchet 33 to rotate again, namely, the coupler 5 cannot drive the rod 3 to rotate, even if the power motor 4 still works at the moment, the two centering rods 2 can not be close to each other any more, so that excessive pressure of the centering mechanism on the two sides of the T-shaped guide rail is prevented, and indentation on the two sides of the T-shaped guide rail is prevented.

When the T-shaped guide rail is detached from the centering mechanism, the power motor 4 rotates reversely, the clamping teeth 52 are abutted against the radial surface of the ratchet 33 at the moment, and the clamping teeth 52 drive the ratchet 33 to rotate reversely, so that the two centering rods 2 are far away from each other, and the clamping on the T-shaped guide rail is released; since the latch teeth 52 abut against the ratchet teeth 33 and are radial surfaces which are parallel to the radial direction of the power rod 3, no sliding can occur between the latch teeth 52 and the ratchet teeth 33, and the opening reliability of the two centering rods 2 is ensured.

As a preferable mode for guiding the movement of the centering rod 2, as shown in fig. 1 to 3, the centering rod further includes a guide rod 6 fixedly disposed inside the box body 1 in parallel with the power rod 3 and inserted through the two centering rods 2.

In order to reduce the friction between the centering rod 2 and the guide rod 6, as shown in fig. 2 to 3, a self-lubricating sleeve 21 is provided on the centering rod 2, and the guide rod 6 is inserted through the self-lubricating sleeve 21.

In order to reduce the shaking of the centering rod 2 in the moving process, as shown in fig. 1 to 3, the centering rod 2 and the power rod 3 are respectively inserted into two ends of the centering rod 2, so that two ends of the centering rod 2 can be limited to a certain extent.

In order to increase the friction force between the latch 52 and the ratchet 33 and ensure that the latch 52 can drive the ratchet 33 to rotate, as shown in fig. 4 to 5, two side surfaces of the latch 52 are respectively parallel to two side surfaces of the ratchet 33, so that the maximum contact area between the latch 52 and the ratchet 33 can be achieved, and the friction force between the latch 52 and the ratchet 33 can be effectively increased.

Since the latch 52 is easy to move axially, in order to ensure the connection reliability between the latch 52 and the ratchet 33, as shown in fig. 1 to 5, the axial length of the ratchet 33 is greater than that of the latch 52.

In order to avoid the damage of the elastic sheet 51 caused by the overlarge deformation of the elastic sheet 51, as shown in fig. 1 to 5, a protective ring 53 is arranged in the circumferential direction of the coupler 5, the elastic sheet 51 is arranged inside the protective ring 53, a gap is formed between the inner wall of the protective ring 53 and the elastic sheet 51, and the deformation degree of the elastic sheet 51 is limited through the gap.

In order to facilitate the processing of the coupling 5, as shown in fig. 1 and 5, the coupling 5 includes a chuck 54 and a sleeve 55, an end surface of the chuck 54 is fixedly connected with an end surface of the sleeve 55, the elastic sheet 51 is disposed on the chuck 54, and the guard ring 53 is disposed on the sleeve 55.

In order to ensure the working reliability of the coupler 5, as shown in fig. 1 to 3, the coupler also comprises a connecting sleeve 7, one end of the coupler is fixedly connected with the outer side of the box body 1, the other end of the coupler is fixedly connected with the power motor 4, and the coupler 5 is arranged in the connecting sleeve 7, so that the coupler 5 can be effectively prevented from colliding with external objects in the working process, dust and foreign matters entering the coupler 5 can be reduced, and the working reliability and the service life of the coupler 5 are improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An overpressure-proof centering mechanism for processing a T-shaped guide rail planer is characterized by comprising a centering mechanism, a centering mechanism and a centering mechanism;

the box body (1) is fixedly arranged on the planer; a cavity is arranged in the box body (1);

two centering rods (2) arranged in parallel and spaced in the cavity; one end of the centering rod (2) extends to the outer side of the box body (1) and is provided with rotating wheels, and the rotating wheels roll on two sides of the T-shaped guide rail;

the power rod (3) is rotatably arranged in the box body (1); a first thread section (31) and a second thread section (32) are arranged on the power rod (3), the first thread section (31) and the second thread section (32) are respectively in threaded penetrating connection with the two centering rods (2), and the thread turning directions of the first thread section (31) and the second thread section (32) are opposite; one end of the power rod (3) extends to the outer side of the box body (1), a plurality of ratchets (33) are circumferentially arranged, one side surface of each ratchet (33) forms an acute angle with the power rod (3) in the radial direction, and the other side surface of each ratchet (33) is parallel to the power rod (3) in the radial direction;

the power motor (4) is fixedly arranged on the box body (1);

one end of the coupler (5) is fixedly connected with an output shaft of the power motor (4), a plurality of elastic pieces (51) extending to the ratchet teeth (33) are arranged on the other end of the coupler in the circumferential direction, clamping teeth (52) are arranged on the elastic pieces (51), and the clamping teeth (52) extend into the interval between the two ratchet teeth (33).

2. The overpressure-proof centering mechanism for machining T-shaped guide rail planer according to claim 1 is characterized by further comprising a guide rod (6) which is fixedly arranged inside the box body (1) in parallel with the power rod (3) and penetrates through two centering rods (2).

3. The overpressure-proof centering mechanism for machining T-shaped guide rail planer as claimed in claim 2, characterized in that the centering rod (2) is provided with a self-lubricating sleeve (21), and the guide rod (6) is inserted into the self-lubricating sleeve (21).

4. The overpressure-proof centering mechanism for processing T-shaped guide rail planer as claimed in claim 2, wherein said centering rod (2) and said power rod (3) are respectively inserted into two ends of said centering rod (2).

5. The overpressure resistant centering mechanism of the machine T-rail planer of claim 1 wherein two sides of the latch (52) are parallel to two sides of the ratchet (33), respectively.

6. The overpressure resistant centering mechanism of the machine T-rail planer of claim 1 wherein the axial length of the ratchet teeth (33) is greater than the axial length of the latch teeth (52).

7. The overpressure-proof centering mechanism for machining T-shaped guide rail planing machine as claimed in claim 1, wherein a protection ring (53) is arranged on the periphery of the coupler (5), the elastic sheet (51) is arranged inside the protection ring (53), and a space is formed between the inner wall of the protection ring (53) and the elastic sheet (51).

8. The overpressure-proof centering mechanism for machining T-shaped guideway planer according to claim 7, characterized in that the coupling (5) comprises a chuck (54) and a bushing (55), the end face of the chuck (54) is fixedly connected with the end face of the bushing (55), the elastic piece (51) is arranged on the chuck (54), and the protection ring (53) is arranged on the bushing (55).

9. The overpressure-proof centering mechanism for machining T-shaped guide rail planing machine as claimed in claim 1, further comprising a connecting sleeve (7), one end of the connecting sleeve is fixedly connected with the outer side of the box body (1), the other end of the connecting sleeve is fixedly connected with the power motor (4), and the coupler (5) is arranged in the connecting sleeve (7).