Motor brake mechanism

Abstract

The utility model discloses a motor brake mechanism, which belongs to the technical field of motors and comprises a motor component, an output component and a brake mechanism. According to the brake mechanism provided with the brake shaft, the brake hole, the notch, the electromagnetic induction component, the brake rod and the protective sleeve, when a motor needs to be braked in actual use, the electromagnetic induction component is powered off, and then the brake rod of the electromagnetic induction component pops out of the protective sleeve, so that the brake rod of the electromagnetic induction component can brake the motor. When the brake rod penetrates into the brake hole of the brake shaft, the brake of the motor can be assisted, when the motor needs to run again, an operator gives an instant high voltage to the electromagnetic induction component, the brake rod is sucked back into the protective sleeve, then the voltage of the electromagnetic induction component is reduced to a conventional voltage level, the brake rod is always sucked into the protective sleeve, and the brake rod is prevented from being damaged. The rotation of the rotating shaft is not affected, and the situation that timely and effective braking cannot be achieved is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely is a kind of motor brake mechanism. BACKGROUND

[0002] With the improvement of people's living standards, people's requirements for dining table are also getting higher and higher. Due to the uneven height of people, especially the height difference between adults and children, when using the same table, chairs of different heights are needed to cooperate. As a kind of daily necessities, tables are commonly used in daily life, work and school learning. Generally, the table is usually fixedly connected by the table top and the table leg, and the length of the table leg is also fixed, so that the height of the whole table top is fixed and cannot be adjusted. With the difference of application environment and the application demand of different people, the requirement for the height diversification, automaticity and comfort of the table is also getting higher and higher. Therefore, a table that can be electrically lifted appears, and a brake motor is used to control the height of the table during the lifting of the table.

[0003] However, the brake of the brake motor of the existing lifting table is a nylon sheet holding mode for the rotating shaft. In actual use, the temperature of the rotating shaft will rise during the operation of the motor. When the electric lifting table is operated for a long time or bears too much pressure, the brake of the nylon sheet holding mode will fail, resulting in the problem that the table cannot be stopped in time and effectively.

[0004] Therefore, it is necessary to invent a motor brake mechanism to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the problem that the brake of the brake motor of the existing lifting table is a nylon sheet holding mode for the rotating shaft. In actual use, the temperature of the rotating shaft will rise during the operation of the motor. When the electric lifting table is operated for a long time or bears too much pressure, the brake of the nylon sheet holding mode will fail, resulting in the problem that the table cannot be stopped in time and effectively. A motor brake mechanism is provided.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: including motor assembly, output assembly and brake mechanism, the output assembly is arranged on the motor assembly, the brake mechanism is installed on the top of the motor assembly, the brake mechanism includes circuit board, electromagnetic induction part, brake lever, monitoring chip, slot, brake shaft and brake hole, the electromagnetic induction part is fixedly arranged above one end of the circuit board, the brake lever is slidably connected to the electromagnetic induction part, the monitoring chip is arranged on the circuit board, the slot is opened at the center position of the circuit board and penetrates the circuit board, the brake shaft is fixedly connected above the motor assembly and extends out of the circuit board through the slot, and the brake hole is opened at the top of the brake shaft and penetrates the brake shaft

[0007] As a further description of the above technical solution, the brake hole size is slightly larger than the brake lever size and the brake shaft height matches the brake hole height.

[0008] As a further description of the above technical solution, the motor assembly comprises a motor body, a motor shaft, a dust cover plate and a second bolt, the motor shaft is rotationally connected to the motor body and extends out of the motor body at both ends, the dust cover plate is located above the motor body and is threadedly connected with the motor body through the second bolt.

[0009] As a further description of the above technical solution, the motor assembly further comprises a fixing column and a dust bottom plate, the fixing column is fixedly connected above the dust cover plate, the circuit board is fixedly connected above the fixing column, and the dust bottom plate is threadedly connected below the motor body.

[0010] As a further description of the above technical solution, the output assembly comprises a bevel gear, an output end body and an output shaft mounting groove, the bevel gear is fixedly connected below the motor shaft, the output end body is connected with the bevel gear through a worm and is located outside the motor assembly, and the output shaft mounting groove is formed on the surface of the output end body and penetrates through the output end body.

[0011] As a further description of the above technical solution, the output assembly further comprises an output end shell and a second bolt, two output end shells are arranged, the two output end shells are respectively located on both sides of the output end body, the output end shell is fixedly connected with the dust bottom plate and is communicated, and the second bolt is threadedly connected with both output end sides and penetrates through the two output end shells.

[0012] As a further description of the above technical solution, the brake mechanism further comprises a protective sleeve, the protective sleeve is fixedly connected with the electromagnetic induction component and is sleeved outside the brake lever.

[0013] Compared with the prior art, the brake mechanism has the advantages that:

[0014] The brake mechanism is provided with a brake shaft, a brake hole, a notch, an electromagnetic induction component, a brake lever and a protective sleeve, so that when the motor needs to be stopped, the electromagnetic induction component is powered off, the brake lever of the electromagnetic induction component is popped out of the protective sleeve, the brake lever is inserted into the brake hole of the brake shaft, the motor brake is assisted, when the motor needs to run again, an operator gives the electromagnetic induction component an instant high voltage (36 volts), the brake lever is attracted back into the protective sleeve, the voltage of the electromagnetic induction component is reduced to a normal voltage level, the brake lever is always attracted in the protective sleeve, the rotation of the rotating shaft is not affected, and the situation that the motor cannot be effectively stopped in time is avoided.

[0015] The utility model discloses a brake assembly with circuit board and monitoring chip is set up, in order to facilitate when using can detect the state of electromagnetic induction component and brake axle through the detection chip on the circuit board, when brake lever needs to draw back and insert in brake hole, if the instantaneous high voltage of electromagnetic induction component cannot attract brake lever back because the torsion of brake axle to brake lever is too big, the state that detection chip monitors will give motor main body an instruction, makes motor shaft drive brake axle reverse rotation 1-2 with the release torsion, when brake lever is attracted back, let motor shaft drive brake axle rotates according to normal direction again, guarantee the cooperation of brake axle and brake lever is in normal state. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure front view of a motor brake mechanism according to one embodiment of the present disclosure.

[0017] Figure 2 It is the overall structure schematic diagram of a motor brake mechanism according to one embodiment of the present disclosure.

[0018] Figure 3 It is the internal structure section view of a motor brake mechanism according to one embodiment of the present disclosure.

[0019] Figure 4 It is the brake mechanism schematic diagram of a motor brake mechanism according to one embodiment of the present disclosure.

[0020] Figure 5 It is the brake mechanism plan view of a motor brake mechanism according to one embodiment of the present disclosure.

[0021] The specific figure mark in the drawing is:

[0022] 1, motor assembly;11, motor main body;12, motor shaft;13, dustproof cover plate;14, second bolt;15, fixed column;16, dustproof bottom plate;

[0023] 2, output assembly;21, bevel gear;22, output end main body;23, output shaft installation slot;24, output end shell;25, second bolt;

[0024] 3, brake mechanism;31, circuit board;32, electromagnetic induction component;33, brake lever;34, protective sleeve;35, monitoring chip;36, slot;37, brake axle;38, brake hole. DETAILED DESCRIPTION

[0025] For the convenience of understanding the utility model, the utility model will be described more comprehensively below with reference to relevant drawings, and several embodiments of the utility model are given in the drawings, but the utility model can be realized by different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the utility model more thorough and comprehensive.

[0026] Embodiments:

[0027] As shown in Figure 1 — Figure 5 A motor brake mechanism, as shown in Figure 1 — Figure 5 The motor brake mechanism comprises a motor assembly 1, an output assembly 2 and a brake mechanism 3, the output assembly 2 is arranged on the motor assembly 1, and the brake mechanism 3 is installed on the top of the motor assembly 1.

[0028] As shown in Figures 2-4 In the present disclosure, the motor assembly 1 comprises a motor body 11, a motor shaft 12, a dust cover plate 13, a second bolt 2514, a fixed column 15 and a dust bottom plate 16, wherein the motor shaft 12 is rotatably connected to the motor body 11 and extends out of the motor body 11 at both ends, the dust cover plate 13 is located above the motor body 11 and is threadedly connected with the motor body 11 through the second bolt 2514, the fixed column 15 is fixedly connected above the dust cover plate 13, and the dust bottom plate 16 is threadedly connected below the motor body 11.

[0029] As shown in Figures 2-3 In a preferred embodiment, the output assembly 2 comprises a bevel gear 21, an output end body 22, an output shaft mounting groove 23, an output end shell 24 and a second bolt 2514, wherein the bevel gear 21 is fixedly connected below the motor shaft 12, the output end body 22 is connected with the bevel gear 21 through a worm and is located outside the motor assembly 1, the output shaft mounting groove 23 is formed on the surface of the output end body 22 and penetrates through the output end body 22, the output end shell 24 is provided with two, the two output end shells 24 are respectively located on both sides of the output end body 22, the output end shell 24 is fixedly connected with the dust bottom plate 16 and is in communication, and the second bolt 2514 is threadedly connected with the two output end sides and penetrates through the two output end shells 24.

[0030] Therefore, the operator installs the output shaft on the output shaft mounting groove 23, then turns on the motor to make the motor shaft 12 rotate, the motor shaft 12 drives the bevel gear to rotate, the bevel gear drives the worm in the output end body 22 to rotate, and the worm drives the output shaft mounting groove 23 and the output shaft to rotate and work.

[0031] As shown in Figures 4-5As shown, in the present disclosure, the brake mechanism 3 comprises a circuit board 31, an electromagnetic induction component 32, a protective sleeve 34, a brake lever 33, a monitoring chip 35, a notch 36, a brake shaft 37 and a brake hole 38, wherein the circuit board 31 is fixedly connected above the fixed column 15, the electromagnetic induction component 32 is fixedly arranged above one end of the circuit board 31, the brake lever 33 is slidingly connected to the electromagnetic induction component 32, the protective sleeve 34 is fixedly connected with the electromagnetic induction component 32 and is sleeved outside the brake lever 33, the monitoring chip 35 is arranged on the circuit board 31, the notch 36 is arranged at the center of the circuit board 31 and penetrates through the circuit board 31, the brake shaft 37 is fixedly connected above the motor assembly 1 and extends out of the circuit board 31 through the notch 36, and the brake hole 38 is arranged at the top of the brake shaft 37 and penetrates through the brake shaft 37.

[0032] Therefore, when the motor needs to be stopped, the operator disconnects the power supply of the electromagnetic induction component 32, and then makes the brake lever 33 of the electromagnetic induction component 32 pop out of the protective sleeve 34, so as to assist the motor brake when the brake lever 33 penetrates into the brake hole 38 of the brake shaft 37, when the motor needs to run again, the operator gives the electromagnetic induction component 32 an instant high voltage of 36 volts, and then the brake lever 33 is attracted back to the inside of the protective sleeve 34, and then the voltage of the electromagnetic induction component 32 is reduced to a normal voltage level, so that the brake lever 33 is always attracted to the inside of the protective sleeve 34 and does not affect the rotation of the rotating shaft;

[0033] When the brake lever 33 needs to be pulled out of the brake hole 38, if the instantaneous high voltage of the electromagnetic induction component 32 cannot attract the brake lever 33 back due to the excessive torsion of the brake shaft 37 to the brake lever 33, the detection chip detects this state and gives an instruction to the motor body 11, so that the motor shaft 12 drives the brake shaft 37 to rotate in the opposite direction by 1°-2° to release the torsion, and then the motor shaft 12 drives the brake shaft 37 to rotate in the normal direction after the brake lever 33 is attracted back.

[0034] The above is an exemplary description of the present application with reference to the drawings, and it is obvious that the specific implementation of the present application is not limited to the above manner, as long as the method concept and technical solution of the present application are adopted for such non-essential improvement or the concept and technical solution of the present application are directly applied to other occasions without improvement, which is within the protection scope of the present application.

Claims

1. A motor brake mechanism, comprising a motor assembly (1), an output assembly (2) arranged on the motor assembly (1), and a brake mechanism (3) mounted on the top of the motor assembly (1), characterized in that: The brake mechanism (3) comprises a circuit board (31), an electromagnetic induction component (32), a brake lever (33), a monitoring chip (35), a notch (36), a brake shaft (37) and a brake hole (38), the electromagnetic induction component (32) is fixedly arranged above one end of the circuit board (31), the brake lever (33) is slidably connected to the electromagnetic induction component (32), the monitoring chip (35) is arranged on the circuit board (31), the notch (36) is formed in the center of the circuit board (31) and penetrates the circuit board (31), the brake shaft (37) is fixedly connected above the motor assembly (1) and extends out of the circuit board (31) through the notch (36), and the brake hole (38) is formed in the top of the brake shaft (37) and penetrates the brake shaft (37).

2. A motor brake mechanism according to claim 1, wherein: The brake hole (38) is slightly larger than the brake lever (33) in size, and the height of the brake shaft (37) matches the height of the brake hole (38).

3. A motor brake mechanism according to claim 1, wherein: The motor assembly (1) comprises a motor body (11), a motor shaft (12), a dust cover plate (13) and a second bolt (25) (14), the motor shaft (12) is rotatably connected to the motor body (11) and extends out of the motor body (11) at both ends, and the dust cover plate (13) is located above the motor body (11) and is threadedly connected with the motor body (11) by the second bolt (25) (14).

4. A motor brake mechanism according to claim 3, wherein: The motor assembly (1) further comprises a fixing column (15) and a dust bottom plate (16), the fixing column (15) is fixedly connected above the dust cover plate (13), and the circuit board (31) is fixedly connected above the fixing column (15); the dust bottom plate (16) is threadedly connected below the motor body (11).

5. A motor brake mechanism according to claim 1, wherein: The output assembly (2) comprises a bevel gear (21), an output end body (22) and an output shaft mounting groove (23), the bevel gear (21) is fixedly connected below the motor shaft (12), the output end body (22) is connected with the bevel gear (21) by a worm and is located outside the motor assembly (1), and the output shaft mounting groove (23) is formed in the surface of the output end body (22) and penetrates the output end body (22).

6. A motor brake mechanism according to claim 5, wherein: The output assembly (2) further comprises an output end shell (24) and a second bolt (25) (14), two output end shells (24) are arranged, and the two output end shells (24) are respectively located on both sides of the output end body (22); the output end shell (24) is fixedly connected with the dust bottom plate (16) and communicates with the dust bottom plate (16); and the second bolt (25) (14) is threadedly connected with the two output end shells (24) and penetrates the two output end shells (24).

7. A motor brake mechanism according to claim 1, wherein: The brake mechanism (3) further comprises a protective sleeve (34), the protective sleeve (34) is fixedly connected with the electromagnetic induction component (32) and is sleeved outside the brake lever (33).

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