CN113531006A

CN113531006A - Brake

Info

Publication number: CN113531006A
Application number: CN202110780472.3A
Authority: CN
Inventors: 叶祥华; 杨婷; 邓东; 王红兵; 王俊; 高宝龙
Original assignee: Pangang Group Xichang Steel and Vanadium Co Ltd
Current assignee: Pangang Group Xichang Steel and Vanadium Co Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-10-22

Abstract

The invention discloses a brake, comprising: the electro-hydraulic pusher comprises a main body and a push rod arranged in the main body, and the push rod can extend and retract in the main body; a lever mechanism connected with the push rod; the brake mechanism is connected with the lever mechanism, and the lever mechanism can drive the brake mechanism to be separated from or tightly held with the brake drum; and the lever mechanism can move under the action of the elastic mechanism. When the electro-hydraulic pusher loses electricity, the push rod retracts, the push rod drives the lever mechanism to move upwards, and the lever mechanism drives the brake mechanism to be separated from the brake drum under the action of the elastic mechanism; when the electro-hydraulic pusher is electrified, the push rod extends out, the push rod pushes the lever mechanism to move downwards, and the lever mechanism overcomes the pressure of the elastic mechanism to drive the brake mechanism to be tightly held with the brake drum. Therefore, when the electro-hydraulic pusher breaks down, the phenomenon that the brake drum is tightly held by the brake mechanism can not occur, and the stable operation of the blast furnace is effectively ensured.

Description

Brake

Technical Field

The invention relates to the technical field of mechanical braking, in particular to a brake.

Background

Blast furnaces of iron works all adopt the bell-less blast furnace to carry out the material loading, wherein bell-less blast furnace includes belt conveyor system, material jar charging system and cloth system, belt conveyor system mainly drives through the motor, every motor is equipped with a stopper, current stopper mainly adopts normal close formula stopper, and normal close formula stopper mainly has following problem, the electric liquid impeller in the stopper is in the state of taking pressure always, equipment temperature is high, short service life, in case the electric liquid impeller breaks down will hold the brake drum tightly, lead to the brake drum to take place violent friction and burning loss, directly cause the blast furnace to shut down, the air loss, influence blast furnace steady operation.

Therefore, how to ensure the stable operation of the blast furnace is a technical problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In view of the above, the present invention is directed to a brake capable of ensuring stable operation of a blast furnace.

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

a brake, comprising:

the electro-hydraulic pusher comprises a main body and a push rod arranged in the main body, and the push rod can stretch out and draw back in the main body;

the lever mechanism is connected with the push rod;

the brake mechanism is connected with the lever mechanism, and the lever mechanism can drive the brake mechanism to be separated from or tightly held with the brake drum;

the elastic mechanism is connected with the lever mechanism, and the lever mechanism can move under the action of the elastic mechanism;

when the electro-hydraulic pusher loses power, the push rod retracts, the push rod drives the lever mechanism to move upwards, and the lever mechanism drives the brake mechanism to be separated from the brake drum under the action of the elastic mechanism; when the electro-hydraulic pusher is electrified, the push rod extends out, the push rod pushes the lever mechanism to move downwards, and the lever mechanism overcomes the pressure of the elastic mechanism to drive the brake mechanism to be tightly held with the brake drum.

Preferably, the lever mechanism comprises a driving rod connected with the push rod and a pull rod connected with the driving rod, the push rod is fixedly connected with the driving rod, and the pull rod is hinged with the driving rod.

Preferably, the brake mechanism comprises a first brake arm and a second brake arm connected with the lever mechanism;

the brake device is characterized in that a first friction plate used for being separated from or tightly held by the brake drum is arranged on the first brake arm, and a second friction plate used for being separated from or tightly held by the brake drum is arranged on the second brake arm.

Preferably, the first brake arm is hinged to the pull rod, and the second brake arm is hinged to the driving rod.

Preferably, the first brake arm is vertically connected with the pull rod, and the second brake arm is vertically connected with the driving rod.

Preferably, the elastic mechanism comprises a first positioning assembly, a second positioning assembly and a spring arranged between the first positioning assembly and the second positioning assembly, the first positioning assembly and the second positioning assembly are respectively connected with the spring in a contact manner, and the spring can provide elastic force for the first positioning assembly and the second positioning assembly in the vertical direction.

Preferably, the first positioning assembly comprises a first screw rod, a first nut connected with the first screw rod in a locking manner, and a first spring pressing plate arranged on the first screw rod, one end of the first screw rod is inserted into the spring, and the first spring pressing plate is connected with the spring in a contact manner.

Preferably, the second positioning assembly comprises a base, a second screw rod arranged on the base, and a second nut sleeved on the second screw rod, wherein a second spring pressing plate is further arranged on the second screw rod, and the second spring pressing plate is in contact connection with the spring.

Preferably, the spring further comprises a housing for mounting the spring.

Preferably, still including being used for supporting the support frame of electricity liquid impeller, the support frame includes first support column, second support column, set up in first support column with first horizontal pole and second horizontal pole between the second support column, electricity liquid impeller set up in first horizontal pole with between the second horizontal pole.

According to the technical scheme, when the driving rod electro-hydraulic pusher is powered off, the driving rod push rod retracts, the driving rod push rod drives the driving rod lever mechanism to move upwards, and the driving rod lever mechanism drives the driving rod brake mechanism to be separated from the driving rod brake drum; when the driving rod electro-hydraulic pusher is electrified, the driving rod push rod extends out, the driving rod push rod pushes the driving rod lever mechanism to move downwards, and the driving rod lever mechanism overcomes the pressure of the driving rod elastic mechanism to drive the driving rod brake mechanism to be tightly held with the driving rod brake drum. So set up, when the belt conveyor system during operation of blast furnace, the electricity-losing state can be in to the electricity-losing impeller, consequently, when the electricity-losing impeller broke down, the phenomenon that arrestment mechanism held the brake drum tightly can not appear, has effectively guaranteed the steady operation of blast furnace.

Drawings

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

Fig. 1 is a schematic front view of a brake according to an embodiment of the present invention.

Wherein, each part name is as follows:

100 is an electro-hydraulic pusher, 101 is a

main body

101, 102 is a push rod, 200 is a lever mechanism, 201 is a driving rod, 202 is a pull rod, 300 is a brake mechanism, 301 is a first brake arm, 302 is a second brake arm, 303 is a first friction plate, 304 is a second friction plate, 400 is an elastic mechanism, 401 is a first positioning component, 402 is a second positioning component, 403 is a spring, 500 is a brake drum, 600 is a base, and 700 is a support frame.

Detailed Description

In view of the above, the core of the present invention is to provide a brake, which can ensure the stable operation of the blast furnace.

In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, a brake disclosed in the embodiment of the present invention includes an electro-hydraulic pusher 100, where the electro-hydraulic pusher 100 includes a main body 101 and a push rod 102 disposed in the main body 101, and the push rod 102 can extend and retract in the main body 101; a lever mechanism 200 connected to the push rod 102; the brake mechanism 300 is connected with the lever mechanism 200, and the lever mechanism 200 can drive the brake mechanism 300 to be separated from or tightly held with the automatic drum; and an elastic mechanism 400 connected with the lever mechanism 200, wherein the lever mechanism 200 can move under the action of the elastic mechanism 400.

When the electro-hydraulic pusher 100 loses power, the push rod 102 retracts, the push rod 102 drives the lever mechanism 200 to move upwards, and the lever mechanism 200 drives the brake mechanism 300 to separate from the brake drum 500 under the action of the elastic mechanism 400; when the electro-hydraulic pusher 100 is powered on, the push rod 102 extends out, the push rod 102 pushes the lever mechanism 200 to move downwards, and the lever mechanism 200 overcomes the pressure of the elastic mechanism 400 to drive the brake mechanism 300 to tightly hold the brake drum 500. So set up, when the belt conveyor system of blast furnace during operation, electricity-losing state can be in to electric liquid impeller 100, consequently, when electric liquid impeller 100 broke down, the phenomenon that arrestment mechanism 300 held brake drum 500 tightly can not appear, has effectively guaranteed the steady operation of blast furnace.

It should be understood that "upward" and "downward" disclosed in the embodiments of the present invention refer to directions away from the ground and "downward" refers to directions close to the ground when the brake is normally operated.

In order to further optimize the above embodiment, the lever mechanism 200 disclosed in the embodiment of the present invention includes a driving rod 201 connected to the push rod 102, and a pull rod 202 connected to the driving rod 201, wherein the push rod 102 is fixedly connected to the driving rod 201, the push rod 102 can drive the driving rod 201 to move up or down, and the pull rod 202 is connected to the driving rod 201 in an articulated manner.

In order to further optimize the above embodiment, the brake mechanism 300 of the brake disclosed in the embodiment of the present invention includes a first brake arm 301 and a second brake arm 302 connected to the lever mechanism 200, wherein the first brake arm 301 is provided with a first friction plate 303 for separating from or holding around the brake drum 500, and the second brake arm 302 is provided with a second friction plate 304 for separating from or holding around the brake drum 500.

The embodiment of the present invention does not limit the specific connection form between the lever mechanism 200 and the brake mechanism 300, as long as the lever mechanism 200 can drive the brake mechanism 300 to separate from or clasp the brake drum 500.

Preferably, the angle between the lever mechanism 200 and the brake mechanism 300 is 60-150 degrees, and more preferably, the lever mechanism 200 and the brake mechanism 300 are vertically connected, so that the brake mechanism 300 and the brake drum 500 can be separated or tightly held.

For convenience of arrangement, the first brake arm 301 is hinged to the pull rod 202, and the second brake arm 302 is hinged to the driving rod 201.

It should be noted that one end of the first brake arm 301 is hinged to the pull rod 202, the other end of the first brake arm 301 is hinged to the base 600, one end of the second brake arm 302 is hinged to the driving rod 201, and the other end of the second brake arm 302 is hinged to the base 600.

To optimize the above embodiment, the first brake arm 301 is vertically connected to the drawbar 202 and the second brake arm 302 is vertically connected to the driving rod 201 as disclosed in the practice of the present invention.

The elastic mechanism 400 disclosed in the embodiment of the present invention includes a first positioning component 401, a second positioning component 402, and a spring 403 disposed between the first positioning component 401 and the second positioning component 402, wherein the first positioning component 401 and the second positioning component 402 are respectively connected to the spring 403 in a contact manner, and the spring 403 can provide an elastic force to the first positioning component 401 and the second positioning component 402 in a vertical direction.

It should be noted that the first positioning assembly 401 includes a first screw, a first nut connected to the first screw in a locking manner, and a first spring pressing plate disposed on the first screw, wherein one end of the first screw is inserted into the spring 403, and the first spring pressing plate is connected to the spring 403 in a contacting manner.

In order to ensure the locking effect, first nuts are respectively arranged at the upper part and the lower part of the driving rod 201, and the first screw rod is connected with the driving rod 201 in a locking manner through the first nuts.

In order to further optimize the above embodiment, the second positioning assembly 402 includes a base, a second screw rod disposed on the base, and a second nut sleeved on the second screw rod, wherein a second spring pressing plate is further disposed on the second screw rod, and the second spring pressing plate is in contact connection with the spring 403. When the lever mechanism 200 moves downward, the lever mechanism 200 drives the first screw rod to move downward, the first screw rod drives the first spring pressing plate to move downward, the first spring pressing plate compresses the spring 403 downward, and the spring 403 is compressed under the action of the first spring pressing plate and the second spring pressing plate. Wherein the second positioning component 402 can adjust the pretightening force.

When the electro-hydraulic pusher 100 loses power, the push rod 102 retracts, the push rod 102 drives the lever mechanism 200 to move upwards, the lever mechanism 200 drives the first positioning assembly 401 to move upwards, at the moment, the elastic force of the spring 403 is released, and the lever mechanism 200 drives the brake mechanism 300 to be separated from the brake drum 500 under the action of the spring 403; when the electro-hydraulic pusher 100 is powered on, the push rod 102 extends out, the push rod 102 pushes the lever mechanism 200 to move downwards, the lever mechanism 200 drives the first positioning component 401 to move downwards, the spring 403 is compressed under the action of the first positioning component 401 and the second positioning component 402, and the lever mechanism 200 overcomes the pressure of the spring 403 to drive the brake mechanism 300 to be tightly held with the brake drum 500.

In order to protect the spring 403 from being damaged, the brake disclosed in the embodiment of the present invention further includes a housing for mounting the spring 403, and the spring 403 is disposed in the housing.

In order to further optimize the above embodiment, the brake disclosed in the embodiment of the present invention further includes a support frame 700 supporting the electro-hydraulic pusher 100, wherein the support frame 700 includes a first support column, a second support column, and a first cross bar and a second cross bar disposed between the first support column and the second support column, and the electro-hydraulic pusher 100 is disposed between the first cross bar and the second cross bar. So configured, the support stand 700 provides good support for the electro-hydraulic pusher 100.

It should be noted that the electro-hydraulic thruster 100 is controlled by a contactor control system, and in order to ensure the reliability of the brakes, it is preferable that one brake is provided with a set of controller control system to control the electro-hydraulic thruster 100.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brake, comprising:

the lever mechanism is connected with the push rod;

2. The brake of claim 1, wherein the lever mechanism comprises a driving rod connected with the push rod, and a pull rod connected with the driving rod, the push rod is fixedly connected with the driving rod, and the pull rod is hinged with the driving rod.

3. The brake of claim 1, wherein said brake mechanism includes a first brake arm and a second brake arm connected to said lever mechanism;

4. The normally open brake of claim 3, wherein said first brake arm is hingedly connected to said pull rod and said second brake arm is hingedly connected to said drive rod.

5. The normally open brake of claim 4, wherein said first brake arm is connected perpendicularly to said pull rod and said second brake arm is connected perpendicularly to said drive rod.

6. The normally open brake of claim 1, wherein the resilient mechanism comprises a first positioning assembly, a second positioning assembly and a spring disposed between the first positioning assembly and the second positioning assembly, the first positioning assembly and the second positioning assembly are respectively in contact connection with the spring, and the spring is capable of providing resilient force to the first positioning assembly and the second positioning assembly in a vertical direction.

7. The normally open brake of claim 6, wherein the first positioning assembly comprises a first screw, a first nut in locking connection with the first screw, and a first spring pressing plate arranged on the first screw, one end of the first screw is inserted into the spring, and the first spring pressing plate is in contact connection with the spring.

8. The brake of claim 6, wherein the second positioning assembly comprises a base, a second screw rod disposed on the base, and a second nut sleeved on the second screw rod, and a second spring pressing plate is disposed on the second screw rod and is in contact connection with the spring.

9. The brake of claim 6, further comprising a housing for mounting said spring.

10. The brake of claim 1, further comprising a support frame for supporting the electro-hydraulic pusher, the support frame comprising a first support column, a second support column, a first cross bar and a second cross bar disposed between the first support column and the second support column, the electro-hydraulic pusher disposed between the first cross bar and the second cross bar.