CN111043194B

CN111043194B - Unpowered pneumatic brake and braking method

Info

Publication number: CN111043194B
Application number: CN201911394089.3A
Authority: CN
Inventors: 吴光锋
Original assignee: Nantong Kunxing Machinery Technology Co ltd
Current assignee: Nantong kunxing Machinery Technology Co.,Ltd.
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2021-05-25
Anticipated expiration: 2038-08-23
Also published as: CN109027066B; CN111043194A; CN109027066A

Abstract

The invention discloses an unpowered pneumatic brake and a braking method, wherein the brake comprises a slide rail and a brake rail, the slide rail is fixedly connected with the brake rail, a sliding groove is formed in the slide rail, a rail hole matched with the sliding groove is formed in one end, close to the slide rail, of the brake rail, two first piston holes are symmetrically formed in the inner side wall of each rail hole, movable blocks are arranged in the two first piston holes, pushing springs are mounted at opposite ends of the two movable blocks, one ends, far away from the movable blocks, of the pushing springs are fixedly connected with the inner wall of each first piston hole, two second piston holes are further symmetrically formed in the inner side wall of each rail hole, and movable rods are arranged in the two second piston holes. The invention realizes the braking of the moving part by utilizing the inertia of the moving part, utilizes gas as an intermediate medium, has good buffering effect and large braking elasticity, is very convenient and fast to take out the braking part, saves the equipment cost and the labor expenditure, and has breakthrough significance.

Description

Unpowered pneumatic brake and braking method

The application is a divisional application of an unpowered pneumatic brake with the application number of CN201810964292.9 and the application date of 2018, 08 and 23.

Technical Field

The invention relates to the technical field of brakes, in particular to an unpowered pneumatic brake and a braking method.

Background

A brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member (or a moving machine), and is a mechanical component that stops or decelerates a moving member in a machine, and is commonly referred to as a brake or a gate. The existing brake mainly comprises a brake frame, a brake piece, an operating device and the like, and the brake kinetic energy is realized through the operating device when a moving part is braked, so that a driving mechanism is generally required to be arranged or the moving part is manually operated, extra equipment cost and manpower expenditure are added, and great technical breakthrough can be provided if the brake for automatically braking the moving part can be designed.

For example, in the production and processing of steel pipes, the steel pipes are often required to be transmitted at different stations, the steel pipes travel in a smooth transmission track and need to be braked after reaching a specified position so as to be convenient to take, and the steel pipes can be braked only by manually operating or driving a brake by using other driving devices in the prior art.

Disclosure of Invention

The invention aims to solve the problem that the brake in the prior art still needs to be driven by a driving mechanism or manually operated, and provides an unpowered pneumatic brake.

In order to achieve the purpose, the invention adopts the following technical scheme:

an unpowered pneumatic brake comprises a slide rail and a brake rail, wherein the slide rail is fixedly connected with the brake rail, the sliding rail is provided with a sliding groove, one end of the braking rail close to the sliding rail is provided with a rail hole matched with the sliding groove, two first piston holes are symmetrically arranged on the inner side wall of the track hole, movable blocks are arranged in the two first piston holes, pushing springs are arranged at the opposite ends of the two movable blocks, and one end of the jacking spring, which is far away from the movable block, is fixedly connected with the inner wall of the first piston hole, two second piston holes are symmetrically arranged on the inner side wall of the track hole, and the second piston holes are positioned on one side of the first piston hole close to the slide rail, movable rods are arranged in the two second piston holes, the opposite ends of the two movable rods are provided with brake blocks, and a communicating hole is formed between the first piston hole and the second piston hole which are positioned on the same side.

In foretell unpowered pneumatic brake, two all seted up the installing port on the inside wall of the opposite side of intercommunicating pore, all seted up the inlet port on the lateral wall of braking rail both sides, and two inlet ports communicate with two installing ports each other respectively, the installing port rotates on being close to the inside wall of inlet port one side and installs the closing plate, and the closing plate lid establishes on the inlet port, be connected with tension spring on the inside wall of closing plate and inlet port.

Preferably, two all set up the inclined plane on the lateral wall of the relative one side of movable block, the inclined plane is towards the slide rail, contained angle S that is between the inside wall in inclined plane and track hole: s is more than or equal to 120 degrees and less than or equal to 150 degrees.

Preferably, the inner side wall of the mounting opening is provided with a support rod, one end of the sealing plate is provided with a rod hole matched with the support rod, and the sealing plate is sleeved on the support rod through the rod hole.

Compared with the prior art, the invention has the advantages that:

1. the invention fully utilizes the self motion inertia of the motion piece, and the motion inertia is used for driving the brake piece, thereby realizing the automatic braking function of the brake, needing no additional drive device or manual control, and greatly saving the equipment expenditure;

2. the moving part is convenient to take out after being braked and stopped, the braking part can be flexibly retracted when the moving part is retracted, the operation is extremely convenient and fast, and the efficiency is high;

3. the air is used as a middle conducting medium, so that the buffer effect is good, the elasticity is large, the braking effect is strong, and the moving part cannot be damaged due to excessive compression;

4. different from a blocking type braking device, the braking device is used for applying high pressure to the outer wall of the moving part to generate friction for braking, so that the abrasion to the appearance of the moving part is avoided, and the problem that the blocking type braking device is seriously worn due to frequent impact of the moving part is also avoided.

Drawings

FIG. 1 is a front cross-sectional view of an unpowered pneumatic brake in accordance with the present invention;

FIG. 2 is a cross-sectional view of a top view of an unpowered pneumatic brake in accordance with the present invention;

FIG. 3 is a cross-sectional view A-A of an unpowered pneumatic brake in accordance with the present invention;

FIG. 4 is a left side view of an unpowered pneumatic brake in accordance with the present invention;

fig. 5 is an enlarged view of a portion B of the unpowered pneumatic brake according to the present invention.

In the figure: the brake device comprises a sliding rail 1, a brake rail 2, a sliding chute 3, a rail hole 4, a first piston hole 5, a jacking spring 6, a movable block 7, a second piston hole 8, a movable rod 9, a brake block 10, a communication hole 11, a mounting hole 12, an air inlet hole 13, a sealing plate 14 and a tension spring 15.

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.

Example one

Referring to fig. 1-4, an unpowered pneumatic brake comprises a sliding rail 1 and a brake rail 2, wherein the sliding rail 1 is fixedly connected with the brake rail 2, a sliding groove 3 is formed in the sliding rail 1, a rail hole 4 matched with the sliding groove 3 is formed in one end, close to the sliding rail 1, of the brake rail 2, moving parts such as steel pipes slide into the brake rail 2 from the sliding rail 1, and the sliding connection between the sliding rail 1 and a brake device is achieved.

Two first piston holes 5 have been seted up to the symmetry on the inside wall in track hole 4, the inside in two first piston holes 5 all is equipped with movable block 7, all set up on the lateral wall of the relative one side of two movable blocks 7 has the inclined plane, the inclined plane is towards slide rail 1, when the motion piece arrives the movable block 7 position with great speed entering track hole 4 from slide rail 1, because the oblique angle is down established towards one side of motion piece to movable block 7, consequently the motion piece can break through the hindrance of movable block 7 and crowd the movable block 7 into first piston hole 5 in, the kinetic energy conversion process to the motion piece has been realized to this structure, then can compress the air of inside in the first piston hole 5 of movable block 7 withdrawal.

The included angle S between the inclined plane and the inner side wall of the track hole 4 is as follows: s is more than or equal to 120 degrees and less than or equal to 150 degrees, if the included angle formed between the inclined plane on the movable block 7 and the inner side wall of the track hole 4 is too small, the movable block 7 can be damaged by a moving part, the service life of the whole brake is short, and if the included angle is too large, the retracting stroke of the movable block 7 is too small, and the compression degree of air in the first piston hole 5 is small.

The opposite ends of the two movable blocks 7 are respectively provided with a pushing spring 6, one end of the pushing spring 6 far away from the movable block 7 is fixedly connected with the inner wall of the first piston hole 5, and the front end of the movable block 7 is kept to extend out of the first piston hole 5 in a normal state to prepare for receiving the impact of a moving part.

Two second piston holes 8 have still been seted up to the symmetry on the inside wall in track hole 4, and second piston hole 8 is located one side that first piston hole 5 is close to slide rail 1, the inside of two second piston holes 8 all is equipped with movable rod 9, braking piece 10 is all installed to two relative one ends of movable rod 9, intercommunicating pore 11 has been seted up between first piston hole 5 that is located the homonymy and the second piston hole 8, when movable block 7 received the impact of motion and return in the first piston hole 5, atmospheric pressure transmits on the movable rod 9 through intercommunicating pore 11, movable rod 9 then can drive braking piece 10 outwards removal and brake the motion, sensitivity is high, motion piece is run into movable block 7, braking piece 10 can work realization braking function at once promptly.

Example two

Referring to fig. 2 and 5, on the basis of the first embodiment, the mounting holes 12 have been all opened on the inside wall of the opposite side of the two communicating holes 11, the air inlet holes 13 have been all opened on the outside walls of the two sides of the brake rail 2, and the two air inlet holes 13 are respectively communicated with the two mounting holes 12, the mounting holes 12 are rotatably mounted on the inside wall of the side close to the air inlet holes 13, the sealing plate 14 covers the air inlet holes 13, the tension springs 15 are connected to the inside walls of the sealing plate 14 and the air inlet holes 13, the design herein can well balance the air pressure inside the communicating holes 11, and the air does not leak out, but can enter the communicating holes 11.

In the prior braking process, the movable block 7 and the brake block 10 are firmly clamped and are not easy to loosen, the moving piece cannot move forward continuously, when the moving piece stopped after being braked needs to be taken out, the moving piece needs to be pulled out from the left side, in addition, after the moving piece is successfully braked, part of gas can be leaked out under high pressure due to high air pressure in the piston hole, after the moving piece is pulled out, the movable block 7 returns under the elastic force of the jacking spring 6, the air pressure in the piston hole is small, at the moment, the sealing plate 14 is opened, and external gas enters balance air pressure.

Install branch on the inside wall of installing port 12, the pole hole of mutually supporting with branch is seted up to the one end of closing plate 14, and closing plate 14 establishes on branch through the pole hole cover, adopts this structure can rotate closing plate 14 and installs in installing port 12 conveniently.

Although the terms of the slide rail 1, the brake rail 2, the slide groove 3, the rail hole 4, the first piston hole 5, the urging spring 6, the movable block 7, the second piston hole 8, the movable rod 9, the brake pad 10, the communication hole 11, the mounting port 12, the air intake hole 13, the seal plate 14, the tension spring 15, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims

1. An unpowered pneumatic brake, includes slide rail (1) and braking rail (2), its characterized in that: the sliding rail (1) is fixedly connected with the brake rail (2), a sliding groove (3) is formed in the sliding rail (1), one end, close to the sliding rail (1), of the brake rail (2) is provided with a rail hole (4) matched with the sliding groove (3), two first piston holes (5) are symmetrically formed in the inner side wall of the rail hole (4), movable blocks (7) are arranged in the two first piston holes (5), a jacking spring (6) is installed at the opposite end of each movable block (7), one end, far away from the movable blocks (7), of the jacking spring (6) is fixedly connected with the inner wall of the first piston hole (5), two second piston holes (8) are further symmetrically formed in the inner side wall of the rail hole (4), the second piston hole (8) is located on one side, close to the sliding rail (1), of the first piston hole (5), a movable rod (9) is arranged in each second piston hole (8), a brake block (10) is mounted at one end of each of the two movable rods (9), and a communication hole (11) is formed between the first piston hole (5) and the second piston hole (8) which are positioned at the same side; mounting holes (12) are formed in the inner side walls of the two opposite sides of the communicating holes (11), air inlet holes (13) are formed in the outer side walls of the two sides of the brake rail (2), the two air inlet holes (13) are communicated with the two mounting holes (12) respectively, a sealing plate (14) is rotatably mounted on the inner side wall of one side, close to the air inlet holes (13), of each mounting hole (12), the sealing plate (14) covers the air inlet holes (13), and tension springs (15) are connected to the inner side walls of the sealing plate (14) and the air inlet holes (13); inclined planes are arranged on the side walls of the two opposite sides of the movable blocks (7), and the inclined planes face the slide rail (1); and a support rod is arranged on the inner side wall of the mounting opening (12).

2. An unpowered pneumatic brake as set forth in claim 1 wherein: the inclined plane and the inner side wall of the track hole (4) form an included angle S: s is more than or equal to 120 degrees and less than or equal to 150 degrees.

3. An unpowered pneumatic brake as set forth in claim 1 wherein: one end of the sealing plate (14) is provided with a rod hole matched with the support rod, and the sealing plate (14) is sleeved on the support rod through the rod hole.

4. A braking method using the unpowered pneumatic brake according to any one of claims 1-3, characterized by: keeping the front end of the movable block (7) extending out of the first piston hole (5) in a normal state to be ready for receiving the impact of the moving part; when the moving piece enters the track hole (4) from the sliding rail (1) and reaches the position of the movable block (7), the movable block (7) is inverted towards one side of the moving piece to form an oblique angle, so that the moving piece can break through the obstruction of the movable block (7) and extrude the movable block (7) into the first piston hole (5), the kinetic energy conversion process of the moving piece is realized by the structure, and the movable block (7) can compress the air inside when retracting into the first piston hole (5); when the movable block (7) is impacted by the moving piece and retreats into the first piston hole (5), air pressure is transmitted to the movable rod (9) through the communication hole (11), the movable rod (9) can drive the brake block (10) to move outwards to brake the moving piece, the sensitivity is extremely high, and the brake block (10) can work immediately to realize the braking function when the moving piece touches the movable block (7).