Electromagnetic clutch braking device

Abstract

The utility model discloses an electromagnetic clutch brake device which comprises a magnet seat, a coil, a brake pad assembly, a microswitch, a handle, a spring, a limiting steel ball and a thrust shaft, an annular groove is formed in one side face of the magnet seat, the coil is arranged in the annular groove in a filling and sealing mode, and a wire is led out to be connected to the microswitch. A stepped hole is formed in the position, around the center of the annular groove, of the magnet base, the thrust shaft is rotatably installed in the stepped hole, and the spring is elastically connected between the flange end of the thrust shaft and the stepped face of the stepped hole. The brake pad assembly is located on the opposite side of the annular groove. The handle is fixedly connected with the thrust shaft and is connected with the microswitch through a rotating clutch; the limiting steel ball is arranged between the handle and the magnet seat, so that the handle rotates to drive the thrust shaft to be far away from the brake pad assembly; and concave-convex lines are arranged on the other side surface and the circumferential surface of the magnet seat. The device can improve the heat conduction efficiency and the heat dissipation capability, thereby effectively improving the stability and reliability of the electromagnetic clutch brake device.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic electric technology and relates to an electromagnetic clutch braking device. Background Technology

[0002] An electromagnetic clutch brake is a magnetic circuit consisting of an excitation coil, a magnet base, and an attracting iron plate.

[0003] When the excitation coil is energized, the electromagnetic attraction overcomes the spring force and attracts the attracting iron plate 5 and the magnet base 1 together, so that the friction plate 8 located between the attracting iron plate 5 and the fixed iron plate 4 is in a free state, and the electromagnetic clutch braking device is in a non-braking state.

[0004] When the excitation coil is de-energized, the electromagnetic attraction is lost, and the spring force pushes the attracting iron plate toward the fixed iron plate, so that the friction plate between the attracting iron plate and the fixed iron plate is in a pressed state, and the electromagnetic clutch braking device is in a braking state.

[0005] like Figure 1 As shown, the excitation coil of existing electromagnetic clutch braking devices is wound on a frame, resulting in poor contact between the frame and the magnet base, which reduces heat conduction efficiency. Furthermore, the smooth outer surface of the magnet base has a small radiating area and poor radiative heat dissipation. When using such electromagnetic clutch braking devices, the excitation coil is in energized mode, causing it to heat up, increase temperature, increase resistance, decrease excitation current, reduce electromagnetic attraction force, and lead to premature clutch release and unnecessary braking. Therefore, improving the brake's heat dissipation capacity and controlling coil temperature rise are important indicators of the clutch braking device's operational stability and reliability. Utility Model Content

[0006] To address the aforementioned technical problems in the existing technology, this utility model provides an electromagnetic clutch braking device that reduces coil temperature rise by improving heat conduction efficiency and increasing heat dissipation area, and allows for manual release of the brake. The specific technical solution is as follows:

[0007] The utility model provides an electromagnetic clutch brake device, including brake mechanism and switch mechanism, the brake mechanism includes magnet seat, coil, brake piece assembly, the switch mechanism includes micro -switch, handle, spring, limiting steel ball and thrust shaft, one side of magnet seat is equipped with annular groove, the coil is filled in and is set in annular groove and leads out the wire and is connected to micro -switch, on magnet seat, located the annousular groove around the center is provided with step hole, the thrust shaft rotatable installation is in step hole, and the thrust shaft one end is equipped with internal thread hole, and the other end is flange end, the spring elasticity is connected between the flange end of thrust shaft and step surface in step hole, the brake piece assembly is located opposite side of annular groove, the handle is located the other side of magnet seat and is fixedly connected with the one end of thrust shaft, and is connected with micro -switch through rotating clutch, the limiting steel ball is arranged between handle and magnet seat, makes handle rotate and drive thrust shaft away from brake piece assembly, the other side of magnet seat and circumferential surface are equipped with concave-convex lines.

[0008] Further, the coil is fixed and packaged in the annular groove by filling the glue after being bundled by rolling the tape.

[0009] Further, the brake piece assembly includes an attractive iron sheet, a friction sheet and a fixed iron sheet arranged axially, the attractive iron sheet is arranged on the opposite side of the annular groove, the fixed iron sheet is located on the opposite side of the attractive iron sheet and is fixed with the magnet seat, and the friction sheet is arranged between the fixed iron sheet and the attractive iron sheet.

[0010] Further, the fixed iron sheet is fixed with the magnet seat by a screw, and a gap limiting sleeve is sleeved on the screw to fix the distance.

[0011] Further, an opening is formed on the side of the annular groove, and the inlet and outlet wires of the coil are connected to the micro -switch through the opening.

[0012] Further, the handle includes a handle part and a rotating part, the handle part is provided with a handle sleeve, and the rotating part is movably installed on the other side of the magnet seat and is connected with the micro -switch through the rotating clutch.

[0013] Further, the rotating part is provided with a connecting hole, three limiting holes and a limiting sliding groove, the other side of the magnet seat is provided with a limiting screw, and the limiting steel balls are arranged in a triangular distribution; the connecting hole is connected with one end of the thrust shaft through a fixing screw, the three limiting holes correspond to the positions of the three limiting steel balls respectively, and the limiting sliding groove corresponds to the limiting screw.

[0014] Beneficial effects: the electromagnetic clutch brake device of the utility model, through the glue pouring packaging and the mode of increasing the heat dissipation area of coil, improve the heat conduction efficiency and the heat dissipation capacity, so that the coil temperature rise is reduced, effectively improve the stability and reliability of the electromagnetic clutch brake device, and the switch mechanism set up can effectively contact the brake state of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the sectional view of the existing electromagnetic clutch brake device with coil framework;

[0016] Figure 2 is the structure schematic diagram of a high reliability electromagnetic clutch brake device of the utility model embodiment;

[0017] Figure 3 is Figure 2 the right view of;

[0018] Figure 4 is Figure 3 the sectional view of D-D section in;

[0019] Figure 5 is the magnet seat structure schematic diagram of the utility model embodiment;

[0020] Figure 6 is Figure 5 the right view of;

[0021] Figure 7 is the coil structure schematic diagram of the utility model embodiment;

[0022] Figure 8 is the coil packaging schematic diagram of the utility model embodiment.

[0023] Mark explanation in the drawing: 1 - magnet seat;2 - thrust shaft;3 - gap limit sleeve;4 - fixed iron sheet;5 - attraction iron sheet;6 - limit steel ball;7 - handle;8 - friction plate;9 - handle sleeve;10 - pouring sealant;11 - screw;12 - switch fixing screw;13 - spring;14 - fixed screw;15 - limit screw;16 - micro switch;17 - coil;18 - framework;101 - the other side surface;102 - circumferential surface;103 - notch;104 - magnet seat inner cavity;171 - incoming line;172 - outgoing line;173 - tie. DETAILED DESCRIPTION

[0024] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in combination with the drawings and examples.

[0025] As Figures 2 to 4As shown, the embodiment discloses an electromagnetic clutch brake device, which comprises a switch mechanism and a brake mechanism, the switch mechanism controls the brake mechanism, and the device can be manually released from braking.

[0026] The switch mechanism comprises a thrust shaft 2, a spring 13, a fixing screw 14, a handle 7 and a micro switch 16. The brake mechanism comprises a magnet base 1, a coil 17, an attracting iron sheet 5, a friction sheet 8 and a fixed iron sheet 4. The attracting iron sheet 5, the friction sheet 8 and the fixed iron sheet 4 are arranged in axial connection.

[0027] One side of the magnet base 1 is provided with an annular groove, which is used as a magnet base inner cavity 104 for placing the coil 17, and the coil 17 is fixed in the magnet base inner cavity 104 through banding by a rolling belt 173 and fixing by pouring sealant 10. The other side of the magnet base 1 is provided with a limiting screw 15 and three limiting steel balls 6, which are arranged in a triangular distribution.

[0028] A stepped hole is arranged at the center of the annular groove on the magnet base 1. The thrust shaft 2 is rotatably arranged in the stepped hole, one end of the thrust shaft 2 is provided with an internal thread hole, and the other end is provided as a flange end. The spring 13 is arranged in abutment between the flange end of the thrust shaft 2 and the stepped surface in the stepped hole. The attracting iron sheet 5 is located on the opposite side of the annular groove.

[0029] The fixed iron sheet 4 is located on the opposite side of the attracting iron sheet 5 and is fixed with the magnet base 1. Specifically, the fixed iron sheet 4 and the magnet base 1 are fixed by a screw 11, and a gap limiting sleeve 3 is sleeved on the screw to fix the distance.

[0030] The friction sheet 8 is arranged in a gap between the fixed iron sheet 4 and the attracting iron sheet 5.

[0031] An opening 103 is arranged on the side of the annular groove, which is used for leading in and out wires 171 and 172 of the coil 17. The micro switch 16 is installed on the other side of the magnet base 1 by a switch fixing screw 12 according to the position of the opening 103. The in and out wires 171 and 172 of the coil 17 are connected to the micro switch 16. Figure 7 and Figure 8 As shown,

[0032] The handle 7 comprises a handle part and a rotating part, the handle part is provided with a handle sleeve 9, the rotating part is movably arranged on the other side of the magnet base 1, and is connected with the micro switch 16 through a rotating clutch. Specifically, the rotating part is provided with a connecting hole, three limiting holes and a limiting sliding groove, the connecting hole is connected with one end of the thrust shaft 2 through a fixing screw 14, the three limiting holes correspond to the positions of the three limiting steel balls 6, and the limiting sliding groove corresponds to the limiting screw 15.

[0033] In the default state, the outer side of the rotating part of the handle 7 is in contact with the micro switch 16, and the limiting steel ball 6 is located in the corresponding limiting hole. When the coil 17 is powered on, the electromagnetic attraction force attracts the attraction iron sheet 5 and the magnet base 1 together; when the coil 17 is powered off, the attraction iron sheet 5 is not affected by the magnetic force, and is pushed to the fixed iron sheet 4 by the spring 13 through the elastic force of the spring 13, so that the friction sheet 8 located between the attraction iron sheet 5 and the fixed iron sheet 4 is in a compressed state. When the handle 7 is rotated along the limiting sliding groove to the upper side away from the micro switch 16, the limiting steel ball 6 will push the handle 7 away from the magnet base 1, and at the same time drive the push shaft 2 to move in the direction of the compression spring 13, so that the friction sheet 8 is always in a free state and does not brake.

[0034] As shown in Figure 5 and Figure 6 The coil 17 is fixed in the inner cavity 104 of the magnet base by the pouring glue 10, so that the heat generated by the coil 17 is efficiently transmitted to the magnet base 1, and the heat conduction efficiency is improved. The other side 101 and the circumferential surface 102 of the magnet base 1 have convex and concave lines, which increase the heat radiation area.

[0035] The high-reliability electromagnetic clutch brake device of the utility model improves the heat conduction efficiency and the heat dissipation capacity by pouring glue packaging and increasing the heat dissipation area of the coil 17, so that the temperature rise of the coil 17 is reduced, and the stability and reliability of the electromagnetic clutch brake device are effectively improved.

[0036] In addition, the pouring setting of the coil 17 is also beneficial to reduce the vibration and noise of the electromagnetic clutch brake device, and is beneficial to prolong the service life of the brake device.

[0037] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. An electromagnetic clutch brake device comprising a brake mechanism and a switch mechanism, characterized by, The brake mechanism comprises a magnet base (1), a coil (17), and a brake piece assembly, and the switch mechanism comprises a micro switch (16), a handle (7), a spring (13), a limiting steel ball (6), and a thrust shaft (2), one side of the magnet base (1) is provided with an annular groove, the coil (17) is filled and arranged in the annular groove and leads out wires to be connected to the micro switch (16); on the magnet base (1), a stepped hole is arranged at the center of the annular groove, the thrust shaft (2) is rotatably arranged in the stepped hole, one end of the thrust shaft (2) is provided with an internal thread hole, and the other end is a flange end; the spring (13) is elastically connected between the flange end of the thrust shaft (2) and the stepped surface in the stepped hole; the brake piece assembly is located at the opposite side of the annular groove; the handle (7) is located at the other side (101) of the magnet base (1) and is fixedly connected with one end of the thrust shaft (2), and is rotatably connected with the micro switch (16); the limiting steel ball (6) is connected and arranged between the handle (7) and the magnet base (1), so that the handle (7) drives the thrust shaft (2) to move away from the brake piece assembly after being rotated; the other side (101) and the circumferential surface (102) of the magnet base (1) are both provided with concave-convex lines.

2. The electromagnetic clutch-brake device of claim 1, wherein The coil (17) is bound by a rolling strip (1173) and is fixed and packaged in the annular groove by filling glue (10).

3. The electromagnetic clutch-brake device of claim 1, wherein The brake piece assembly comprises an attracting iron piece (5), a friction piece (8), and a fixed iron piece (4) arranged in an axial connection, the attracting iron piece (5) is arranged at the opposite side of the annular groove, the fixed iron piece (4) is located at the opposite side of the attracting iron piece (5) and is fixedly limited with the magnet base (1), and the friction piece (8) is arranged in a gap between the fixed iron piece (4) and the attracting iron piece (5).

4. The electromagnetic clutch-brake device of claim 3, wherein The fixed iron piece (4) and the magnet base (1) are fixed by a screw (11), and a gap limiting sleeve (3) is sleeved on the screw (11).

5. The electromagnetic clutch-brake device of claim 1, wherein An annular groove is provided with an opening (103), and the inlet wire (171) and the outlet wire (172) of the coil (17) are connected to the micro switch (16) through the opening (103).

6. The electromagnetic clutch-brake device of claim 1, wherein The handle (7) comprises a handle part and a rotating part, the handle part is provided with a handle sleeve (9), and the rotating part is movably arranged at the other side of the magnet base (1) and is rotatably connected with the micro switch (16).

7. The electromagnetic clutch-brake device of claim 6, wherein A connecting hole, three limiting holes, and a limiting sliding groove are arranged on the rotating part, the other side of the magnet base (1) is provided with a limiting screw (15), and the limiting steel balls (6) are arranged in a triangular distribution; the connecting hole is connected with one end of the thrust shaft (2) through a fixing screw (14), the three limiting holes correspond to the positions of the three limiting steel balls (6), and the limiting sliding groove corresponds to the limiting screw (15).

Images