CN211259438U - Compact explosion-proof motor braking device - Google Patents
Compact explosion-proof motor braking device Download PDFInfo
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- CN211259438U CN211259438U CN201921944173.3U CN201921944173U CN211259438U CN 211259438 U CN211259438 U CN 211259438U CN 201921944173 U CN201921944173 U CN 201921944173U CN 211259438 U CN211259438 U CN 211259438U
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Abstract
The utility model relates to the technical field of explosion-proof motors, in particular to a compact explosion-proof motor braking device, which provides a compact explosion-proof motor braking device, comprising a workbench, a motor, a first pneumatic brake, a second pneumatic brake, a braking bracket, a tightening mechanism and an air source; the brake bracket comprises a fixed seat and a brake shell, and the first pneumatic brake comprises a first brake disc which is fixedly arranged on a rotating shaft of the motor and rotates synchronously with the rotating shaft; the second pneumatic brake comprises a pneumatic disc and a second brake disc; the second brake disc is elastically connected with the brake shell through a propping mechanism; the air pressure disc is connected with the air source in an airtight mode through the air pipe, the friction type brake disc structure is adopted, the problem that the motor still rotates after the power supply of the equipment is cut off is solved, and the service life of the motor is prolonged.
Description
Technical Field
The utility model relates to an explosion-proof machine technical field, concretely relates to compact explosion-proof machine arresting gear.
Background
The explosion-proof motor is a motor which can be used in flammable and explosive places, does not generate electric sparks during operation, is mainly used in coal mines, petroleum and natural gas, petrochemical industry and chemical industry, is widely applied to departments of textile, metallurgy, urban gas, traffic, grain and oil processing, paper making, medicine and the like, is used as main power equipment and is generally used for driving pumps, fans, compressors, other transmission machinery and the like, but the motor still rotates after the power supply of the equipment in the prior art is cut off, and the service life of the motor is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact explosion-proof machine arresting gear.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a compact explosion-proof motor braking device, which comprises a workbench, a motor, a first pneumatic brake, a second pneumatic brake, a braking bracket, a tightening mechanism and an air source;
the workbench is horizontally arranged, and the motor is fixedly arranged on the workbench;
the brake bracket comprises a fixed seat and a brake shell, the fixed seat is fixedly connected with one end of the motor, the brake shell is fixedly connected with the fixed seat, a plurality of guide pillars are arranged on the fixed seat, and a piston is arranged at the tail end of each guide pillar;
the first pneumatic brake comprises a first brake disc which is fixedly arranged on a rotating shaft of the motor and rotates synchronously with the rotating shaft;
the second pneumatic brake comprises a pneumatic disc and a second brake disc, wherein guide sleeves which correspond to the guide posts one by one and are in sliding fit are arranged on the pneumatic disc, the guide sleeves are in air-tight connection with the piston, the pneumatic disc is of a hollow structure, and the interior of each guide sleeve is communicated with the interior of the pneumatic disc;
the second brake disc is elastically connected with the brake shell through a propping mechanism;
the air pressure plate is connected with an air source in an airtight mode through an air pipe.
As a preferred scheme of the compact explosion-proof motor braking device, a rotating shaft of the motor penetrates through two sides of the motor, an output shaft and a tail shaft are respectively arranged at two ends of the rotating shaft, and the whole braking device is located at one end of the tail shaft of the motor.
As an optimal scheme of the compact explosion-proof motor braking device, the first pneumatic brake further comprises a brake disc attached to the first brake disc, the brake disc is fixedly installed at the tail end of the tail shaft and rotates synchronously with the tail shaft, and the first brake disc is located on one side close to the second pneumatic brake.
As an optimal scheme of a compact explosion-proof motor braking device, the abutting mechanism comprises a plurality of first limiting columns fixedly mounted on the air pressure plate, a plurality of second limiting columns fixedly mounted on the brake shell and springs, the first limiting columns and the second limiting columns are coaxially arranged and are in one-to-one correspondence, one end of each spring is sleeved on the first limiting column and abuts against the air pressure plate, and the other end of each spring is sleeved on the second limiting column and abuts against the brake shell.
As a preferred scheme of the compact explosion-proof motor braking device, a circular hole through which an air supply pipe passes is formed in the brake shell, and the air pipe passes through the circular hole and is connected with the air pressure disc in an air-tight mode.
As a preferred scheme of the compact explosion-proof motor braking device, the fixed seat is fixedly connected with the brake shell through a bolt (3 c).
As a preferred scheme of the compact explosion-proof motor braking device, the tail end of the guide sleeve is provided with an anti-drop plate.
As a preferred scheme of the compact explosion-proof motor braking device, the air pipe is provided with a three-way electromagnetic valve, and three ends of the three-way electromagnetic valve are respectively connected with the air source, the air pipe and the atmosphere.
The utility model has the advantages that: when the motor starts to work, the one end that three-way solenoid valve connects air supply and trachea is opened by operating personnel, the air supply passes through in the trachea transmission gas to the pressure dish, thereby promote the piston of guide pin bushing inside when the atmospheric pressure in the pressure dish is too high and overcome the elasticity of spring, make the pressure dish drive second brake disc keep away from first brake disc, when needing the motor to brake, close connecting trachea and atmospheric one end again by operating personnel with intercommunication air supply and tracheal one end and open, gaseous release in the twinkling of an eye in the pressure dish, the pressure dish receives the elastic force of spring to drive second brake disc contact first brake disc in the twinkling of an eye behind the atmospheric pressure loss and locks it, accomplish braking work, this device adopts the structure of friction formula brake disc, after having solved equipment and having cut off the power, the motor is still at the pivoted problem, the life of motor has been improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is an exploded perspective view of a compact explosion-proof motor braking device according to the present invention;
fig. 2 is a schematic perspective view of a compact explosion-proof motor braking device according to the present invention;
fig. 3 is a top view of a compact explosion-proof motor braking device according to the present invention;
fig. 4 is a partial sectional view of a compact explosion-proof motor braking device according to the present invention;
fig. 5 is a partial exploded view of the compact explosion-proof motor braking device according to the present invention;
fig. 6 is a partially enlarged view of a portion a in fig. 5.
In the figure:
1. a work table;
2. a motor; 2a, an output shaft; 2b, tail shaft
3. A brake bracket; 3a, a fixed seat; 3a1, guide posts; 3a2, piston; 3b, a brake housing; 3c, a bolt (3 c);
4. a first pneumatic brake; 4a, a first brake disc; 4b, a brake disc;
5. a second pneumatic brake; 5a, a pneumatic disc; 5a1, guide sleeve; 5a2, anti-drop board; 5b, a second brake disc;
6. a tightening mechanism; 6a, a first limiting column; 6b, a second limiting column; 6c, a spring;
7. a gas source; 7a, an air pipe; 7b, a three-way electromagnetic valve.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The compact explosion-proof motor braking device shown in fig. 1 to 6 comprises a workbench 1, a motor 2, a first pneumatic brake 4, a second pneumatic brake 5, a braking bracket 3, a tightening mechanism 6 and an air source 7;
the workbench 1 is horizontally arranged, and the motor 2 is fixedly arranged on the workbench 1;
the brake bracket 3 comprises a fixed seat 3a and a brake shell 3b, the fixed seat 3a is fixedly connected with one end of the motor 2, the brake shell 3b is fixedly connected with the fixed seat 3a, the fixed seat 3a is provided with a plurality of guide posts 3a1, and the tail end of each guide post 3a1 is provided with a piston 3a 2;
the first pneumatic brake 4 comprises a first brake disc 4a which is fixedly arranged on a rotating shaft of the motor 2 and rotates synchronously with the rotating shaft;
the second pneumatic brake 5 comprises a pneumatic disc 5a1 and a second brake disc 5b, guide sleeves 5a1 which correspond to the guide posts 3a1 one by one and are in sliding fit are arranged on the pneumatic disc 5a1, the guide sleeves 5a1 are connected with the piston 3a2 in an airtight mode, the pneumatic disc 5a1 is of a hollow structure, and the interior of the guide sleeves 5a1 is communicated with the interior of the pneumatic disc 5a 1;
the second brake disc 5b is elastically connected with the brake shell 3b through a propping mechanism 6;
the air pressure plate 5a1 is connected to the air source 7 in an airtight manner through an air pipe 7 a.
When the motor 2 is in a static state, the abutting mechanism 6 abuts against the second pneumatic brake 5 and the brake bracket 3, the second pneumatic brake 5 is stressed to abut against the first pneumatic brake 4, when the motor 2 is in a working state, the rotating shaft operates at a high speed, the first brake disc 4a rotates synchronously with the rotating shaft, and when the air source 7 is opened, the air source 7 sends air into the air pressure disc 5a1 through the air pipe 7a, the air enters the air pressure disc 5a1 and then presses the piston 3a2 in the guide sleeve 5a1 to drive the piston 3a2 to move, the air pressure disc 5a1 overcomes the pressure of the spring 6c due to the acting force generated by the movement of the piston 3a2 to drive the second brake disc 5b to be far away from the first brake disc 4a, when the air source 7 is closed, the piston 3a2 loses the pressure of the air source 7, the air pressure plate 5a1 instantly drives the second brake disc 5b to abut against the first brake disc 4a under the action of the elastic force of the spring 6c, and the second brake disc 5b locks the first brake disc 4a, so that the braking work is finished.
The rotating shaft of the motor 2 penetrates through two sides of the motor 2, an output shaft 2a and a tail shaft 2b are respectively arranged at two ends of the rotating shaft, and the whole braking device is located at one end of the tail shaft 2b of the motor 2.
The output shaft 2a of the motor 2 is a working end, the tail shaft 2b penetrates from the inside of the motor 2 to the outside, and the braking device is arranged on the tail shaft 2b to complete braking work and does not influence the normal operation of the motor 2.
The first pneumatic brake 4 further comprises a brake disc 4b attached to the first brake disc 4a, the brake disc 4b is fixedly mounted at the tail end of the tail shaft 2b and rotates synchronously with the tail shaft 2b, and the first brake disc 4a is located on one side close to the second pneumatic brake 5.
The brake disc 4b and the brake disc are fixedly connected to the tail shaft 2b, and the brake disc 4b reinforces the fixation of the brake disc.
The abutting mechanism 6 comprises a plurality of first limiting columns 6a fixedly mounted on the pneumatic disc 5a1, a plurality of second limiting columns 6b fixedly mounted on the brake shell 3b and a spring 6c, the first limiting columns 6a and the second limiting columns 6b are coaxially arranged and are in one-to-one correspondence, one end of the spring 6c is sleeved on the first limiting columns 6a and abuts against the pneumatic disc 5a1, and the other end of the spring 6c is sleeved on the second limiting columns 6b and abuts against the brake shell 3 b.
The air pressure plate 5a1 and the brake shell 3b are tightly pressed by a plurality of springs 6c, and the air pressure plate 5a1 drives the second brake disc 5b and the first brake disc 4a to tightly press each other under the static state by the elasticity of the springs 6 c.
The brake shell 3b is provided with a round hole through which the air supply pipe 7a passes, and the air supply pipe 7a passes through the round hole and is connected with the air pressure disc 5a1 in an air-tight way.
The air pipe 7a penetrates through the brake shell 3b and is connected with the air pressure plate 5a1, and the air pipe 7a transmits high-pressure air to the air pressure plate 5a1 when the brake is operated.
The fixed seat 3a is fixedly connected with the brake shell 3b through bolts.
The brake housing 3b is fixedly connected with the first brake and the second brake by bolts and fixing, so that the stability of the first brake and the second brake is enhanced.
The tail end of the guide sleeve 5a1 is provided with a retaining plate 5a 2.
The piston 3a2 is prevented from being pressed out of the guide sleeve 5a1 by air pressure.
The air pipe 7a is provided with a three-way electromagnetic valve 7b, and the three ends of the three-way electromagnetic valve 7b are respectively connected with the air source 7, the air pipe 7a and the atmosphere.
One end of the three-way electromagnetic valve 7b is connected with the air source 7, one end of the three-way electromagnetic valve is connected with the air pipe 7a, the air pipe 7a is connected with the air pressure plate 5a1 in an air-tight mode, the three-way electromagnetic valve 7b opens the valve, the air source 7 transmits air to the air pressure plate 5a1, the other end of the three-way electromagnetic valve 7b is connected with the atmosphere, and when one end of the air connection is opened, high-pressure air in the air pressure plate 5a 1.
The utility model discloses an operating principle: when the motor 2 starts to work, an operator opens one end of the three-way electromagnetic valve 7b, which is connected with the air source 7 and the air pipe 7a, and the air source 7 transmits air into the air pressure disc 5a1 through the air pipe 7a, when the air pressure in the air pressure disc 5a1 is too high, the piston 3a2 in the guide sleeve 5a1 is pushed so as to overcome the elastic force of the spring 6c, so that the air pressure disc 5a1 drives the second brake disc 5b to be far away from the first brake disc 4a, when the motor 2 needs to brake, the operator closes one end of the air source 7 and the air pipe 7a, opens one end of the air pipe 7a, which is connected with the atmosphere, and instantly releases the air in the air pressure disc 5a1, and after the air pressure is lost, the air pressure disc 5a1 instantly drives the second brake disc 5b to contact with the first brake disc 4a by the elastic force of.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (8)
1. A compact explosion-proof motor braking device is characterized by comprising a workbench (1), a motor (2), a first pneumatic brake (4), a second pneumatic brake (5), a braking bracket (3), a tightening mechanism (6) and an air source (7);
the workbench (1) is horizontally arranged, and the motor (2) is fixedly arranged on the workbench (1);
the brake support (3) comprises a fixed seat (3 a) and a brake shell (3 b), the fixed seat (3 a) is fixedly connected with one end of the motor (2), the brake shell (3 b) is fixedly connected with the fixed seat (3 a), the fixed seat (3 a) is provided with a plurality of guide posts (3 a 1), and the tail end of each guide post (3 a 1) is provided with a piston (3 a 2);
the first pneumatic brake (4) comprises a first brake disc (4 a) which is fixedly arranged on a rotating shaft of the motor (2) and rotates synchronously with the rotating shaft;
the second pneumatic brake (5) comprises a pneumatic disc (5 a) and a second brake disc (5 b), guide sleeves (5 a 1) which correspond to the guide posts (3 a 1) in a one-to-one and are in sliding fit are arranged on the pneumatic disc (5 a), the guide sleeves (5 a 1) are in air-tight connection with the pistons (3 a 2), the pneumatic disc (5 a) is of a hollow structure, and the interior of the guide sleeves (5 a 1) is communicated with the interior of the pneumatic disc (5 a);
the second brake disc (5 b) is elastically connected with the brake shell (3 b) through a propping mechanism (6);
the air pressure plate (5 a) is connected with an air source (7) in an air-tight way through an air pipe (7 a).
2. A compact explosion-proof motor braking device according to claim 1, characterized in that the rotating shaft of the motor (2) penetrates through the two sides of the motor (2), the two ends of the rotating shaft are respectively an output shaft (2 a) and a tail shaft (2 b), and the whole braking device is positioned at one end of the tail shaft (2 b) of the motor (2).
3. The compact explosion-proof motor braking device according to claim 2, wherein the first pneumatic brake (4) further comprises a brake disc (4 b) attached to the first brake disc (4 a), the brake disc (4 b) is fixedly installed at the tail end of the tail shaft (2 b) and rotates synchronously with the tail shaft (2 b), and the first brake disc (4 a) is located at one side close to the second pneumatic brake (5).
4. The compact explosion-proof motor braking device according to claim 1, wherein the tightening mechanism (6) comprises a plurality of first limiting posts (6 a) fixedly mounted on the air pressure plate (5 a), a plurality of second limiting posts (6 b) fixedly mounted on the brake housing (3 b), and a spring (6 c), the first limiting posts (6 a) and the second limiting posts (6 b) are coaxially arranged and are in one-to-one correspondence, one end of the spring (6 c) is sleeved on the first limiting post (6 a) and abuts against the air pressure plate (5 a), and the other end of the spring (6 c) is sleeved on the second limiting post (6 b) and abuts against the brake housing (3 b).
5. A compact explosion-proof motor braking device according to claim 1, wherein the brake housing (3 b) is provided with a circular hole through which the air supply pipe (7 a) passes, and the air supply pipe (7 a) passes through the circular hole to be connected with the air pressure plate (5 a) in an airtight manner.
6. A compact explosion-proof motor braking device according to claim 1, characterized in that the fixed seat (3 a) is fixedly connected with the brake housing (3 b) through bolts.
7. The compact explosion-proof motor braking device of claim 1, wherein the end of the guide sleeve (5 a 1) is provided with a retaining plate (5 a 2).
8. The compact explosion-proof motor braking device according to claim 1, wherein the air pipe (7 a) is provided with a three-way electromagnetic valve (7 b), and three ends of the three-way electromagnetic valve (7 b) are respectively connected with the air source (7), the air pipe (7 a) and the atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944173.3U CN211259438U (en) | 2019-11-12 | 2019-11-12 | Compact explosion-proof motor braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944173.3U CN211259438U (en) | 2019-11-12 | 2019-11-12 | Compact explosion-proof motor braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259438U true CN211259438U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921944173.3U Active CN211259438U (en) | 2019-11-12 | 2019-11-12 | Compact explosion-proof motor braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864364A (en) * | 2021-09-18 | 2021-12-31 | 无锡四方友信股份有限公司 | Pneumatic brake structure of motor |
-
2019
- 2019-11-12 CN CN201921944173.3U patent/CN211259438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864364A (en) * | 2021-09-18 | 2021-12-31 | 无锡四方友信股份有限公司 | Pneumatic brake structure of motor |
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