CN217085591U

CN217085591U - Centrifugal release device

Info

Publication number: CN217085591U
Application number: CN202220931613.7U
Authority: CN
Inventors: 马利军; 赵士杰; 蔡宏春; 张德耀
Original assignee: Xuzhou Zhongkuang Changan Technology Co ltd
Current assignee: Xuzhou Zhongkuang Changan Technology Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-07-29
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a centrifugal release device, which comprises a shell, wherein a centrifugal block is arranged in the shell and can drive the centrifugal block to rotate integrally, the centrifugal block comprises a low-speed centrifugal block and a high-speed centrifugal block, the lower end surface of the low-speed centrifugal block is close to the upper end surface of the high-speed centrifugal block and is in threaded connection with a plurality of guide shafts, the other ends of the guide shafts are embedded in the high-speed centrifugal block and are in sliding connection with the high-speed centrifugal block, the lower end surface of the low-speed centrifugal block and the upper end surface of the high-speed centrifugal block are symmetrically provided with two semicircular notches which are coaxial with the shell, the end cover is provided with a middle shaft, and the middle shaft extends into between the two semicircular notches and is used for limiting the low-speed centrifugal block or the high-speed centrifugal block to move towards the middle part of the shell; the upper end surface of the low-speed centrifugal block and the lower end surface of the high-speed centrifugal block are both provided with a thread adjusting device; the device can realize accurate adjustment through the thread adjusting device, is easy to calibrate centrifugal release rotating speed, can realize adjustment outside the shell, and simplifies the calibration process.

Description

Centrifugal release device

Technical Field

The utility model relates to a centrifugation release field, concretely relates to centrifugation release.

Background

The mechanical centrifugal release technology is widely applied to a plurality of industries as a safety guarantee means for monitoring overspeed instant action triggering in real time on line in high-speed operation. At present, the purpose of adjusting the centrifugal release rotating speed is mostly realized by increasing and decreasing the thickness of an adjusting gasket assembled at the bottom of a spring inside a shell, the shell needs to be opened every time the thickness of the adjusting gasket is adjusted, the adjusting gasket is reassembled after the thickness of the adjusting gasket is adjusted, the centrifugal release rotating speed is calibrated for one time, the cover is opened and the assembling is often repeated for ten times, the process is complicated, and the adjustment of the thickness of the gasket is limited by materials, so that the pressure of the spring cannot be accurately adjusted.

SUMMERY OF THE UTILITY MODEL

The technical insufficiency to the aforesaid exists, the utility model aims at providing a centrifugal release device, it passes through regulating spring pressure, can realize the accurate adjustment, easily marks centrifugal release rotational speed, and can realize at the outside adjustment of casing, marks the simplification of process.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a centrifugal release device, which comprises an annular shell provided with an end cover, wherein a centrifugal block is arranged in the shell and can drive the shell to rotate integrally, the centrifugal block comprises a low-speed centrifugal block and a high-speed centrifugal block, the low-speed centrifugal block and the high-speed centrifugal block are respectively provided with a plurality of blind holes, and the end cover is provided with a plurality of external through threaded holes which are matched with the blind holes and are convenient for bolts to pass through;

the lower end surface of the low-speed centrifugal block is close to the upper end surface of the high-speed centrifugal block and is in threaded connection with a plurality of guide shafts, the other ends of the guide shafts are embedded into the high-speed centrifugal block and are in sliding connection with the high-speed centrifugal block, two semicircular notches which are coaxial with the shell are symmetrically arranged on the lower end surface of the low-speed centrifugal block and the upper end surface of the high-speed centrifugal block, a middle shaft is arranged on the end cover, and the middle shaft extends into the space between the two semicircular notches and is used for limiting the low-speed centrifugal block or the high-speed centrifugal block to move towards the middle of the shell;

the upper end face of low-speed centrifugal piece, the lower terminal surface of high-speed centrifugal piece all are equipped with screw thread adjusting device, screw thread adjusting device includes the driving lever, wherein one end of driving lever and the low-speed centrifugal piece or the high-speed centrifugal piece threaded connection of homonymy, the driving lever other end stretches out outside the casing and threaded connection nut, nut outer wall and casing threaded connection, all compress tightly between the nut of low-speed centrifugal piece, high-speed centrifugal piece and homonymy has the spring, the spring nestification is on the driving lever.

Preferably, the guide shafts are symmetrically arranged on the left side and the right side of the low-speed centrifugal block, and the high-speed centrifugal block is provided with through holes for the guide shafts to be embedded in.

Preferably, the deflector rod is convex, the top end of the deflector rod is in threaded connection with the centrifugal block, and grooves for embedding springs are formed in the low-speed centrifugal block and the high-speed centrifugal block.

Preferably, the semicircular notch penetrates through the low-speed centrifugal block and the high-speed centrifugal block and is matched with a middle shaft on the end cover.

Preferably, the radians of the left and right side surfaces of the centrifugal block are matched with the radians of the inner wall of the shell, and the thickness of the centrifugal block is smaller than that of the shell.

The beneficial effects of the utility model reside in that: the device has simple structure and convenient assembly and debugging, can adjust and calibrate the centrifugal release rotating speed externally, and does not need to repeatedly open the end cover when calibrating the rotating speed parameters; the pressing spring is adjusted through the nut 5, so that accurate adjustment can be realized; the double-speed valve can realize double speed, fix the low-speed end and realize high-speed centrifugal release; the high-speed end is fixed, and low-speed centrifugal release can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a centrifugal releasing device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a low-speed centrifugal block according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a high-speed centrifugal block according to an embodiment of the present invention.

Description of reference numerals:

1. a housing; 2. a low-speed centrifugal block; 22. a deflector rod; 23. a guide shaft; 24. blind holes; 3. a high-speed centrifugal block; 4. a spring; 5. and (4) a nut.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, a centrifugal release device includes an annular housing 1 provided with an end cover, a centrifugal block is arranged in the housing 1 and can drive the housing to rotate integrally, the centrifugal block includes a low-speed centrifugal block 2 and a high-speed centrifugal block 3, the low-speed centrifugal block 2 and the high-speed centrifugal block 3 are respectively provided with a plurality of blind holes 24, and the end cover is provided with a plurality of externally-through threaded holes adapted to the blind holes 24 and allowing bolts to pass through conveniently;

the lower end surface of the low-speed centrifugal block 2 is close to the upper end surface of the high-speed centrifugal block 3 and is in threaded connection with a plurality of guide shafts 23, the other ends of the guide shafts 23 are embedded into the high-speed centrifugal block 3 and are in sliding connection with the high-speed centrifugal block, two semicircular notches which are coaxial with the shell 1 are symmetrically arranged on the lower end surface of the low-speed centrifugal block 2 and the upper end surface of the high-speed centrifugal block 3, a middle shaft is arranged on the end cover and extends into the space between the two semicircular notches to limit the low-speed centrifugal block 2 or the high-speed centrifugal block 3 to move towards the middle of the shell 1;

the up end of low-speed centrifugation piece 2, the lower terminal surface of high-speed centrifugation piece 3 all are equipped with screw thread adjusting device, screw thread adjusting device includes driving lever 22, wherein one end of driving lever 22 and the low-speed centrifugation piece 2 or the 3 threaded connection of high-speed centrifugation piece of homonymy, the driving lever 22 other end stretches out outside casing 1 and threaded connection nut 5, nut 5 outer wall and 1 threaded connection of casing, all compress tightly between the nut 5 of low-speed centrifugation piece 2, high-speed centrifugation piece 3 and homonymy have spring 4, spring 4 nestification is on driving lever 22.

The guide shafts 23 are symmetrically arranged on the left side and the right side of the low-speed centrifugal block 2, and the high-speed centrifugal block 3 is provided with through holes for the guide shafts 23 to be embedded in.

The deflector rod 22 is convex, the top end of the deflector rod is in threaded connection with the centrifugal block, and grooves for embedding the springs 4 are formed in the low-speed centrifugal block 2 and the high-speed centrifugal block 3.

The semicircular notch penetrates through the low-speed centrifugal block 2 and the high-speed centrifugal block 3 and is matched with a middle shaft on the end cover.

The radians of the left side surface and the right side surface of the centrifugal block are matched with the radians of the inner wall of the shell 1, and the thickness of the centrifugal block is smaller than that of the shell 1.

When the centrifugal block is used, the shell 1 drives the centrifugal block to integrally rotate, the bolt penetrates through the outer through hole and then is matched with the threaded hole, when the low-speed centrifugal block 2 is fixed, the pressure of the nut 5 on the spring 4 is adjusted, and the rotating speed of the high-speed centrifugal block 3 during centrifugal release can be adjusted; similarly, when the high-speed centrifugal block 3 is fixed, the pressure of the nut 5 on the spring 4 on the same side is adjusted, so that the rotating speed of the low-speed centrifugal block 2 during centrifugal release can be adjusted. The low-speed centrifugal block 2 is provided with 23 guide shafts which are inserted into the through holes of the high-speed centrifugal block 3 and mutually support each other during working. The spring 4 can be inserted from outside the housing 1 and the nut 5 can be adjusted outside the housing.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A centrifugal release device is characterized by comprising an annular shell (1) provided with an end cover, wherein a centrifugal block is arranged in the shell (1) and can drive the shell to integrally rotate, the centrifugal block comprises a low-speed centrifugal block (2) and a high-speed centrifugal block (3), a plurality of blind holes (24) are respectively formed in the low-speed centrifugal block (2) and the high-speed centrifugal block (3), and a plurality of external through threaded holes which are matched with the blind holes (24) and facilitate the passing of bolts are formed in the end cover;

the lower end face of the low-speed centrifugal block (2) is close to the upper end face of the high-speed centrifugal block (3) and is in threaded connection with a plurality of guide shafts (23), the other ends of the guide shafts (23) are embedded into the high-speed centrifugal block (3) and are in sliding connection with the high-speed centrifugal block, two semicircular notches which are coaxial with the shell (1) are symmetrically arranged on the lower end face of the low-speed centrifugal block (2) and the upper end face of the high-speed centrifugal block (3), a middle shaft is arranged on the end cover and extends into the space between the two semicircular notches to limit the low-speed centrifugal block (2) or the high-speed centrifugal block (3) to move towards the middle of the shell (1);

the upper end face of low-speed centrifugation piece (2), the lower terminal surface of high-speed centrifugation piece (3) all are equipped with screw thread adjusting device, screw thread adjusting device includes driving lever (22), wherein one end of driving lever (22) and low-speed centrifugation piece (2) or high-speed centrifugation piece (3) threaded connection of homonymy, driving lever (22) other end stretches out outside casing (1) and threaded connection nut (5), nut (5) outer wall and casing (1) threaded connection, all compress tightly between nut (5) of low-speed centrifugation piece (2), high-speed centrifugation piece (3) and homonymy spring (4), spring (4) nestification is on driving lever (22).

2. A centrifugal release device according to claim 1, wherein the guide shafts (23) are symmetrically arranged on the left and right sides of the low-speed centrifugal block (2), and the high-speed centrifugal block (3) is provided with through holes for the guide shafts (23) to be inserted into.

3. A centrifugal release device according to claim 1, wherein said lever (22) is convex, the top end of which is screwed to the centrifugal block, and said low-speed centrifugal block (2) and said high-speed centrifugal block (3) are provided with grooves for the spring (4) to insert.

4. A centrifugal release device according to claim 1, characterized in that the semicircular notches extend through the low-speed centrifugal block (2) and the high-speed centrifugal block (3) and are adapted to the central axis of the end cover.

5. A centrifugal release device according to claim 1, characterized in that the curvature of the left and right sides of the centrifugal block is adapted to the curvature of the inner wall of the casing (1), and the thickness of the centrifugal block is smaller than the thickness of the casing (1).