CN220173084U - DC motor with limit switch device in brush box - Google Patents
DC motor with limit switch device in brush box Download PDFInfo
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- CN220173084U CN220173084U CN202321549079.4U CN202321549079U CN220173084U CN 220173084 U CN220173084 U CN 220173084U CN 202321549079 U CN202321549079 U CN 202321549079U CN 220173084 U CN220173084 U CN 220173084U
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- limit switch
- movable rod
- brush
- direct current
- switch device
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- 244000185238 Lophostemon confertus Species 0.000 title claims abstract description 21
- 230000002457 bidirectional effect Effects 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a direct current motor with a limit switch device in a brush box, which relates to the technical field of direct current motors and comprises a machine shell, a stator arranged in the machine shell, a rotor arranged in the stator, a rotating shaft arranged on the rotor, a commutator arranged on the rotating shaft and an electric brush in abutting connection with the outer wall of the commutator. According to the utility model, the brush breakage of the direct current motor caused by short brushes is avoided, the occurrence of the faults is effectively avoided, the economic loss is reduced, the running reliability of the motor is improved, and the service life of the motor is prolonged.
Description
Technical Field
The utility model relates to the technical field of direct current motors, in particular to a direct current motor with a limit switch device in a brush box.
Background
A direct current motor refers to a rotating electrical machine that can convert direct current electric energy into mechanical energy or convert mechanical energy into direct current electric energy. The motor can realize the mutual conversion of direct-current electric energy and mechanical energy. When the motor is operated as a DC motor, the motor converts electric energy into mechanical energy; when the generator operates as a direct current generator, mechanical energy is converted into electric energy.
The prior Chinese patent (bulletin number: CN 213637385U) proposes a direct current motor with a limit switch device in a brush box, comprising: the shell, the round hole has been seted up on the right side of shell, the right side fixed mounting of shell has the spacing collar, the inner wall bottom fixed mounting of shell has the installation piece, has installed the mechanism of being convenient for with trading the electric wire, and long-term use leads to the circuit ageing damage very easily, convenient to detach when the maintenance, more labour saving and time saving when trading the electric wire with trading the electric wire.
The DC motor has the following disadvantages when in use: the DC motor rotor is usually provided with an electric brush, and after the electric brush is used for a period of time, the surface of the electric brush and the surface of the commutator are worn, so that the original length is shortened, the phenomena of broken braid of the electric brush, contact damage to the surface of the commutator by a pressure spring, spark occurrence due to small pressure and the like are easily caused, therefore, the DC motor with the limit switch device in the brush box is provided for solving the problems.
Disclosure of Invention
The utility model provides a direct current motor with a limit switch device in a brush box, which solves the technical problems that after a brush is used for a period of time, the surface of the brush and the surface of a commutator are worn, the original length is shortened, the braid breakage of the brush is easy to occur, a pressure spring contacts the surface of the commutator, the pressure is small, and phenomena such as ignition occur.
In order to solve the technical problems, the direct current motor with the limit switch device in the brush box comprises a machine shell, a stator arranged in the machine shell, a rotor arranged in the stator, a rotating shaft arranged on the rotor, a commutator arranged on the rotating shaft and an electric brush in abutting connection with the outer wall of the commutator, wherein a mounting plate is further arranged in the machine shell, a connecting rod is arranged on the side wall of the mounting plate, a sleeve is arranged on the connecting rod, an abutting component for controlling the electric brush to be attached to the outer wall of the commutator is arranged on the sleeve, and an alarm component is arranged on the abutting component.
Preferably, the pressing assembly comprises a movable rod, a baffle and a tension spring, the movable rod is arranged inside the sleeve in a sliding mode, the baffle is arranged on the outer wall of the movable rod, the tension spring is sleeved on the outer wall of the movable rod, the top end of the tension spring is connected with the bottom surface of the baffle, the bottom end of the tension spring is connected with the inner bottom wall of the sleeve, and the electric brush is detachably connected with the bottom end of the movable rod.
Preferably, the alarm assembly comprises a mounting frame, a limit switch, a trigger block and an alarm, wherein the mounting frame is mounted on the outer wall of the lower end of the sleeve, the limit switch is mounted on the mounting frame, the trigger block is mounted on the outer wall of the movable rod, the alarm is mounted on the casing, and the limit switch is electrically connected with the alarm.
Preferably, the bottom end of the movable rod is further provided with a clamping mechanism for clamping and fixing the electric brush, and the electric brush is detachably connected with the movable rod through the clamping mechanism.
Preferably, the fixture comprises a bearing plate, clamping arms, a bidirectional screw rod, a driven bevel gear, a rotating rod and a driving bevel gear, the rotating rod is installed in the movable rod in a rotating mode, the bearing plate is installed at the bottom end of the movable rod, the bidirectional screw rod is installed in the bearing plate in a rotating mode, the clamping arms are arranged on the left side and the right side of the bearing plate in a sliding mode, the clamping arms are in threaded connection with the bidirectional screw rod, the driving bevel gear is connected to the bottom end of the rotating rod, the driven bevel gear is installed on the bidirectional screw rod, and the driven bevel gear is connected with the driving bevel gear in a meshed mode.
Preferably, square sliding grooves are formed in the left side and the right side of the bearing plate, and the clamping arms are arranged in the square sliding grooves in a sliding mode.
Preferably, the top end of the rotating rod is connected with a knob, and the knob is arranged above the movable rod.
Preferably, a threaded blind hole is formed in the clamping arm, and the clamping arm is in threaded connection with the bidirectional screw rod through the threaded blind hole.
Compared with the related art, the direct current motor with the limit switch device in the brush box has the following beneficial effects:
according to the utility model, the baffle plate can be pulled by the elasticity of the extension spring to drive the movable rod to slide towards the outside of the sleeve, the movable rod can drive the electric brush to be attached to the outer wall of the commutator, the support of the electric brush on the movable rod disappears along with the continuous abrasion of the electric brush, the movable rod moves downwards under the action of the elasticity of the extension spring to drive the trigger block to move downwards, so that the trigger block is in contact with the limit switch, the audible and visual alarm is started to give an alarm, and a user is reminded of timely replacing the electric brush, thereby avoiding the breakage of the electric brush of the direct current motor caused by the short electric brush, effectively avoiding the occurrence of the faults, reducing the economic loss, and improving the running reliability of the motor and the service life of the motor.
According to the utility model, the driving bevel gear is driven to rotate by rotating the rotating rod, the driven bevel gear is driven to rotate by the driving bevel gear, the bidirectional screw rod is driven to rotate by the driven bevel gear, two clamping arms which are symmetrically arranged can be driven to move relatively under the threaded fit, the clamping arms can be used for clamping and fixing the electric brush, the electric brush is convenient to fix, and meanwhile, the electric brush is convenient to replace after the electric brush is severely worn.
Drawings
FIG. 1 is a schematic diagram of a DC motor with a limit switch device in a brush box;
FIG. 2 is a schematic cross-sectional view of a DC motor with a limit switch device in a brush box;
FIG. 3 is a schematic diagram of the structure of the clamping mechanism in the DC motor with limit switch device in the brush box;
fig. 4 is an enlarged view of the structure at a in fig. 2.
Reference numerals in the drawings: 1. a housing; 2. a stator; 3. a rotor; 4. a rotating shaft; 5. a commutator; 6. a brush; 7. a mounting plate; 8. a connecting rod; 9. a sleeve; 10. a movable rod; 11. a clamping mechanism; 1101. a carrying plate; 1102. a clamp arm; 1103. a two-way screw rod; 1104. a driven bevel gear; 1105. a rotating lever; 1106. a drive bevel gear; 1107. a knob; 12. a baffle; 13. a tension spring; 14. a mounting frame; 15. a limit switch; 16. a trigger block; 17. an alarm.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
The first embodiment is shown in fig. 1-4, the direct current motor with a limit switch device in a brush box comprises a casing 1, a stator 2 installed in the casing 1, a rotor 3 installed in the stator 2, a rotating shaft 4 installed on the rotor 3, a commutator 5 installed on the rotating shaft 4 and a brush 6 in abutting connection with the outer wall of the commutator 5, a mounting plate 7 is also installed in the casing 1, a connecting rod 8 is installed on the side wall of the mounting plate 7, a sleeve 9 is installed on the connecting rod 8, a pressing component for controlling the brush 6 to be attached to the outer wall of the commutator 5 is arranged on the sleeve 9, an alarm component is arranged on the pressing component, the pressing component comprises a movable rod 10, a baffle 12 and a tension spring 13, the movable rod 10 is slidably arranged in the sleeve 9, the baffle 12 is installed on the outer wall of the movable rod 10, the tension spring 13 is sleeved on the outer wall of the movable rod 10, the top end of the extension spring 13 is connected with the bottom surface of the baffle 12, the bottom end of the extension spring 13 is connected with the inner bottom wall of the sleeve 9, the electric brush 6 is detachably connected with the bottom end of the movable rod 10, the alarm assembly comprises a mounting frame 14, a limit switch 15, a trigger block 16 and an alarm 17, the mounting frame 14 is mounted on the outer wall of the lower end of the sleeve 9, the limit switch 15 is mounted on the mounting frame 14, the trigger block 16 is mounted on the outer wall of the movable rod 10, the alarm 17 is mounted on the shell 1, the limit switch 15 is electrically connected with the alarm 17, the baffle 12 can be pulled by the elasticity of the extension spring 13 to drive the movable rod 10 to slide towards the outside of the sleeve 9, the movable rod 10 can drive the electric brush 6 to be attached to the outer wall of the commutator 5, the electric brush 6 continuously wears, the support of the movable rod 10 is disappeared, the movable rod 10 moves downwards under the elastic force of the extension spring 13 to drive the trigger block 16 to move downwards, the trigger block 16 is contacted with the limit switch 15, the audible and visual alarm 17 is started to give an alarm, and a user is reminded of timely replacing the electric brush 6, so that the situation that the electric brush 6 of the direct-current motor breaks plait due to the short electric brush 6 is avoided, the faults are effectively avoided, the economic loss is reduced, the running reliability of the motor is improved, and the service life of the motor is prolonged.
Referring to fig. 1-4, on the basis of the first embodiment, a clamping mechanism 11 for clamping and fixing the electric brush 6 is further provided at the bottom end of the movable rod 10, the electric brush 6 is detachably connected with the movable rod 10 through the clamping mechanism 11, the clamping mechanism 11 comprises a bearing plate 1101, a clamping arm 1102, a bidirectional screw 1103, a driven bevel gear 1104, a rotating rod 1105 and a driving bevel gear 1106, the rotating rod 1105 is installed in the movable rod 10 in a rotating manner, the bearing plate 1101 is installed at the bottom end of the movable rod 10, the bidirectional screw 1103 is installed in the bearing plate 1101 in a rotating manner, the clamping arms 1102 are slidably arranged at the left side and the right side of the bearing plate 1101, the clamping arms 1102 are in threaded connection with the bidirectional screw 1103, the bottom end of the rotating rod 1105 is connected with the driving bevel gear 1106, the driven bevel gear 1104 is installed on the bidirectional screw 1103, the driven bevel gear 1104 is in meshed connection with the driving bevel gear 1106, the driving bevel gear 1106 is driven to rotate through the rotating rod, the driving bevel gear 1106 drives the bidirectional screw 1103, the driven bevel gear 1103 to rotate, the two clamping arms 1102 which are symmetrically arranged can be driven to move relatively under threaded fit, the clamping arms 1102 can be used for clamping and fixing the electric brush 6, and meanwhile, the electric brush 6 can be conveniently replaced seriously.
Referring to fig. 3, in order to avoid the rotation of the clamping arm 1102 following the bidirectional screw 1103, square sliding grooves are formed in the left and right sides of the bearing plate 1101, the clamping arm 1102 is slidably arranged in the square sliding grooves, the effect of limiting the clamping arm 1102 is achieved, in addition, in order to facilitate the rotation of the rotating rod 1105, the top end of the rotating rod 1105 is connected with a knob 1107, the knob 1107 is arranged above the movable rod 10, in addition, in order to ensure that the bidirectional screw 1103 rotates to drive the clamping arm 1102 to horizontally displace, a threaded blind hole is formed in the clamping arm 1102, and the clamping arm 1102 is in threaded connection with the bidirectional screw 1103 through the threaded blind hole.
Working principle: the baffle 12 can be pulled by the elasticity of the extension spring 13 to drive the movable rod 10 to slide towards the outside of the sleeve 9, the movable rod 10 can drive the brush 6 to be attached to the outer wall of the commutator 5, the brush 6 continuously wears down along with the wear of the brush 6, the support of the brush 6 to the movable rod 10 disappears, the movable rod 10 moves downwards under the action of the elasticity of the extension spring 13 to drive the trigger block 16 to move downwards, the trigger block 16 contacts with the limit switch 15, the audible and visual alarm 17 is started to give an alarm to remind a user that the brush 6 needs to be replaced in time, thereby the phenomenon that the brush 6 of the direct current motor breaks the braid due to the short brush 6 is avoided, the occurrence of the faults is effectively avoided, the economic loss is reduced, the reliability of motor operation is improved, the service life of the motor is prolonged, the driving bevel gear 1106 is driven to rotate by rotating the rotating rod 1105, the driven bevel gear 1104 is driven to rotate by the driving bevel gear 1104, the bidirectional screw 1103 is driven to rotate by the driving bevel gear, the two clamping arms 1102 which are arranged in a relative movement under the threaded fit, the clamping arms 1102 can be used for clamping and fixing the brush 6, and the brush 6 is convenient to fix the brush 6, and meanwhile, and the brush 6 is convenient to replace after the brush 6 is severely worn.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a take limit switch device's direct current motor in brush box, includes casing (1), installs stator (2) inside casing (1), installs rotor (3) inside stator (2), installs pivot (4) on rotor (3), installs commutator (5) on pivot (4) and electric brush (6) of being connected with commutator (5) outer wall conflict, a serial communication port, mounting panel (7) are still installed to the inside of casing (1), install connecting rod (8) on mounting panel (7) lateral wall, install sleeve (9) on connecting rod (8), be provided with on sleeve (9) and be used for controlling electric brush (6) and commutator (5) outer wall laminating support the pressure subassembly, be provided with alarm assembly on the pressure subassembly.
2. The direct current motor with limit switch device in brush box according to claim 1, characterized in that the pressing component comprises a movable rod (10), a baffle plate (12) and a tension spring (13), wherein the movable rod (10) is slidably arranged in the sleeve (9), the baffle plate (12) is arranged on the outer wall of the movable rod (10), the tension spring (13) is sleeved on the outer wall of the movable rod (10), the top end of the tension spring (13) is connected with the bottom surface of the baffle plate (12), the bottom end of the tension spring (13) is connected with the inner bottom wall of the sleeve (9), and the electric brush (6) is detachably connected with the bottom end of the movable rod (10).
3. The direct current motor with limit switch device in brush box according to claim 1, characterized in that the alarm assembly comprises a mounting frame (14), a limit switch (15), a trigger block (16) and an alarm (17), wherein the mounting frame (14) is mounted on the outer wall of the lower end of the sleeve (9), the limit switch (15) is mounted on the mounting frame (14), the trigger block (16) is mounted on the outer wall of the movable rod (10), the alarm (17) is mounted on the machine shell (1), and the limit switch (15) is electrically connected with the alarm (17).
4. The direct current motor with the limit switch device in the brush box according to claim 2, characterized in that the bottom end of the movable rod (10) is further provided with a clamping mechanism (11) for clamping and fixing the electric brush (6), and the electric brush (6) is detachably connected with the movable rod (10) through the clamping mechanism (11).
5. The direct current motor with the limit switch device in the brush box according to claim 4, wherein the clamping mechanism (11) comprises a bearing plate (1101), a clamping arm (1102), a bidirectional screw rod (1103), a driven bevel gear (1104), a rotating rod (1105) and a driving bevel gear (1106), the rotating rod (1105) is installed in the movable rod (10) in a rotating mode, the bearing plate (1101) is installed at the bottom end of the movable rod (10), the bidirectional screw rod (1103) is installed in the bearing plate (1101) in a rotating mode, the clamping arms (1102) are slidably arranged on the left side and the right side of the bearing plate (1101), the clamping arms (1102) are in threaded connection with the bidirectional screw rod (1103), the bottom end of the rotating rod (1105) is connected with the driving bevel gear (1106), the driven bevel gear (1104) is installed on the bidirectional screw rod (1103), and the driven bevel gear (1104) is in meshed connection with the driving bevel gear (1106).
6. The direct current motor with the limit switch device in the brush box according to claim 5, wherein square sliding grooves are formed in the left side and the right side of the bearing plate (1101), and the clamping arms (1102) are slidably arranged in the square sliding grooves.
7. The direct current motor with limit switch device in brush box according to claim 5, characterized in that the top end of the rotating rod (1105) is connected with a knob (1107), and the knob (1107) is arranged above the movable rod (10).
8. The direct current motor with the limit switch device in the brush box according to claim 5, wherein a threaded blind hole is formed in the clamping arm (1102), and the clamping arm (1102) is in threaded connection with the bidirectional screw rod (1103) through the threaded blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321549079.4U CN220173084U (en) | 2023-06-17 | 2023-06-17 | DC motor with limit switch device in brush box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321549079.4U CN220173084U (en) | 2023-06-17 | 2023-06-17 | DC motor with limit switch device in brush box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220173084U true CN220173084U (en) | 2023-12-12 |
Family
ID=89062526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321549079.4U Active CN220173084U (en) | 2023-06-17 | 2023-06-17 | DC motor with limit switch device in brush box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220173084U (en) |
-
2023
- 2023-06-17 CN CN202321549079.4U patent/CN220173084U/en active Active
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