Motor
The threaded connection and hollow cylindrical structure of the motor housing design solve the problems of motor manufacturing complexity and insufficient cleanliness, achieving simple and fast assembly and quiet operation, suitable for food production environments.
Patent Information
- Application Number
- CN202422918740.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing motor manufacturing process is complex, difficult to achieve simple and fast assembly and lacks cleanliness.
The shell design adopts threaded connection, through the threaded connection of the outer shell part with the bearing flange and flange part, combined with the hollow cylindrical structure and flattened part, the simple assembly of the shell and the precise installation of the internal components are achieved.
It enables simple and fast assembly of the motor, improves cleanliness and vibration attenuation, ensures quiet operation of the motor and prevents corrosion, and is suitable for food production environments.
Smart Images
Figure CN223451723U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of motor, the motor is especially brake motor. BACKGROUND
[0002] As is known, the motor comprises a housing. SUMMARY
[0003] Therefore the purpose of the utility model is to provide a kind of motor that can be simply manufactured.
[0004] According to the utility model, the purpose is achieved by the motor according to the following features.
[0005] In the motor, an important feature of the utility model is that the motor is especially brake motor, the motor has housing, the housing has outer housing piece, bearing flange and flange piece,
[0006] Wherein, the outer housing piece has first thread, first thread is connected with the thread of bearing flange, especially threaded connection,
[0007] Wherein, the outer housing piece has second thread, second thread is connected with the thread of flange piece, especially threaded connection.
[0008] Here the advantage is that the housing can be assembled only by screwing motion. Because only outer housing piece is screwed to bearing flange in the first manufacturing step, and especially after cable passes through corresponding cable sleeve / cable through-portion, cover piece is screwed to outer housing piece in subsequent second manufacturing step. In the first step, the grip of outer housing piece is improved by the flat portion and therefore the manufacturing step can be particularly simply and quickly implemented.
[0009] Therefore, in the utility model, it is important that the motor is configured with the cylindrical housing, the housing can be assembled only by screwing motion, wherein the flat portion / flat portion on the otherwise cylindrical circumferential surface of the housing improves the grip and is used for installing cable sleeve, so that simple, fast and reliable assembly can be achieved.
[0010] In an advantageous design, the outer housing piece is basically implemented as a hollow cylinder. Here the advantage is that liquid quickly flows away and therefore does not leave residues on the housing piece. Therefore, the surface of the motor is easy to clean.
[0011] In an advantageous design, a first flat portion is configured on the outer surface of the outer housing piece, the first flat portion has a through hole, a first cable sleeve is arranged at the hole. Here the advantage is that the cable sleeve can be accurately installed and a high protection level can be achieved, because the flat portion provides a flat surface, and the seal is reliably sealed against the surface.
[0012] In an advantageous design, the internally hollow-structured inner housing part is arranged in the outer housing part and serves as a stator housing of the electric machine. The advantage here is that the inner housing can be made of a different material than the outer housing part, and / or that mechanical vibrations have to be transmitted from the inner housing part to the outer housing part through the interface between the two housing parts and are thereby damped. Thus, the vibrations are damped by this mechanical decoupling. Furthermore, axial impacts into the electric machine through the rotor shaft are not or only negligibly transmitted from the inner housing part to the outer housing part.
[0013] In an advantageous design, the internally hollow-structured inner housing part is inserted into the outer housing part and is at least force-locked connected with the outer housing part. The advantage here is that a gap can be prevented and thus a quiet operation is achieved, since the outer housing part stabilizes the inner housing part.
[0014] In an advantageous design, a first bearing of the electric machine rotor shaft is received in the bearing flange,
[0015] wherein a second bearing of the electric machine rotor shaft is received in the flange part. The advantage here is that the housing is assembled from the bearing flange, the flange part and the outer housing part, that is to say from only a small number of components.
[0016] In an advantageous design, the outer housing part is made of a different material than the inner housing part. The advantage here is that the compensation of length changes caused by heat can be improved. In particular, the inner housing part can be made of a material that has a smaller thermal expansion.
[0017] In an advantageous design, long screws spaced apart from one another in the circumferential direction are passed through the recess of the flange part and through the holes of the inner housing part,
[0018] In particular, wherein the inner housing part is arranged in the axial direction between the bearing flange and the flange part,
[0019] In particular, wherein the respective threaded region of the respective long screw is screwed into the respective axially directed threaded hole of the bearing flange, the screw head of the respective long screw pressing the flange part against the inner housing part, which is thereby pressed onto the bearing flange. The advantage here is that the electric machine is assembled on the bearing flange.
[0020] In an advantageous design, the first thread has a thread line, the maximum angle of rotation or helix angle of the thread line being designed such that, when the outer housing part is completely screwed into the thread of the bearing flange, the shortest cable length is achieved or reached in the interior of the outer housing part with respect to all possible helix angle positions for the cables, in particular low-voltage cables, passed through the first cable bushing. The advantage here is that the length of the cables within the housing is minimized.
[0021] In an advantageous design, a second flattened portion is configured on the outer surface of the outer housing part, the second flattened portion having a through-going hole, in which a second cable bushing is arranged. The advantage here is that the cable length of the signal line within the housing is minimized.
[0022] In an advantageous design, the shortest cable length of the cable, in particular the low voltage cable, through the second cable bushing can be achieved or reached in relation to all possible helix angle positions in the interior of the outer housing part when the outer housing part is screwed completely into the thread of the bearing flange. The advantage here is that the cable length is minimized.
[0023] In an advantageous design, the flange part has a braking surface, in particular a finished surface. The advantage here is that the flange part not only receives the bearing of the rotor shaft, but also discharges the frictional heat of the brake to the surroundings and also holds the brake.
[0024] In an advantageous design, the brake block support, in particular a hole disc-shaped brake block support, is connected to the rotor shaft in a rotationally fixed manner, the brake block support being movable in the axial direction, in particular by means of a key connection to the rotor shaft,
[0025] In particular, the inner toothing of the brake block support is fitted onto and engages with the outer toothing. The advantage here is that a frictional contact between one of the brake blocks of the brake block support and the braking surface of the bearing flange can be caused by a movement of the brake block support.
[0026] In an advantageous design, the magnet connected to the flange part, in particular via a peg, has an annular recess in which an electrically energizable winding is received,
[0027] In particular, the ring axis is coaxial with the rotational axis of the rotor shaft,
[0028] In which a ferromagnetic armature plate is arranged axially between the magnet and the brake block support, the armature plate being connected to the magnet in a rotationally fixed manner, the armature plate being movable in the axial direction,
[0029] In which a spring element supported on the magnet presses on the armature plate,
[0030] In particular, a pin, which is fixed in the magnet, is connected to the flange piece. The advantage here is that the brake is automatically engaged at a power failure and thus a high safety is ensured. Furthermore, the brake is completely arranged inside the housing and is thus protected from contamination. Furthermore, the brake is constructed on the flange piece and is held by the flange piece.
[0031] In an advantageous design, the armature plate is drawn towards the magnet against the spring force of the spring element when the winding is energized, and the spring element presses the armature plate against the brake block support when the winding is not energized. The advantage here is that a safe operation can be achieved.
[0032] In an advantageous design, the flange piece, the bearing flange and the outer housing piece are each made of stainless steel. The advantage here is that corrosion can be prevented, so that use in food production is possible.
[0033] The utility model is not limited to the above-mentioned feature combinations. For the person skilled in the art, especially the purpose proposed from the purpose and / or by comparing with the prior art, other reasonable combination possibilities of the above-mentioned feature combinations and / or single above-mentioned features and / or the features explained below and / or the features of the drawings can be obtained. BRIEF DESCRIPTION OF DRAWINGS
[0034] The utility model will now be explained in detail by means of the schematic drawings:
[0035] Figure 1 A brake motor according to the utility model is shown in an oblique view along a first viewing direction.
[0036] Figure 2 The brake motor is shown in an oblique view along another viewing direction.
[0037] Figure 3 The brake motor is shown with a longitudinal section.
[0038] Figure 4 The housing piece 2 of the brake motor is shown in an oblique view.
[0039] Figure 5 The longitudinal section of the housing piece 2 is shown.
[0040] Figure 6 The bearing flange 1 of the brake motor is shown in an oblique view.
[0041] Figure 7 The cover piece 3 of the brake motor is shown in an oblique view.
[0042] Figure 8 The flange piece 31 with the brake 33 is shown in an oblique view.
[0043] LIST OF REFERENCE NUMBERS:
[0044] 1 bearing flange
[0045] 2 outer housing part
[0046] 3 cover part
[0047] 4 cable bushing for low-voltage lines, in particular signal lines
[0048] 5 cable bushing for low-voltage lines
[0049] 6 rotor shaft
[0050] 30 long screw
[0051] 31 flange part
[0052] 32 stator winding of an electric machine
[0053] 33 electromagnetically actuatable brake
[0054] 40 threaded region
[0055] 50 hole for long screw in inner housing part
[0056] 70 outer threaded region DETAILED DESCRIPTION
[0057] As shown in the drawing, the brake machine has an electric machine with an electromagnetically actuatable brake 33, wherein the brake machine is surrounded in a housing-forming manner by an outer housing part 2, which is connected on the output side with a bearing flange 1 and on the side of the outer housing part 2 axially facing away from the bearing flange 1 with a cover part.
[0058] Here, the bearing flange 1 is connected with the outer housing part 2 in a threaded manner, and the cover part 3 is also connected with the outer housing part 2 in a threaded manner.
[0059] The inner housing part, which is configured in a hollow-cylindrical manner, is inserted into the outer, hollow-cylindrical housing part 2 and is connected here in a force-locking manner. Thus, advantageously, the inner housing part can be made of a different material than the outer housing part 2.
[0060] A threaded region 40, in particular an outer threaded region, is configured on the axial end region of the outer housing part 2 facing the bearing flange 1, so that the outer housing part 2 can be screwed with this threaded region 40 into an inner threaded region configured on the bearing flange 1.
[0061] In the inner housing part, holes 50 for long screws are configured which are axially through-going and spaced apart from one another in the circumferential direction. A flange part 31, on which the brake is mounted, is arranged on the side of the inner housing part axially facing away from the bearing flange 1.
[0062] Long screws running through the flange part 31 and the inner housing part are screwed into axially directed threaded holes of the bearing flange 1. The screw heads of the long screws 30 thus press the flange part 31 onto the inner housing part, which is thus pressed onto the bearing flange 1.
[0063] The stator winding 32 of the electric machine is arranged radially inside the inner housing part.
[0064] The rotor shaft 6 of the electric machine is mounted in a rotatable manner by a first bearing received in the bearing flange 1 and by a second bearing received in the flange part 31.
[0065] The cover part 3 has an outer threaded region 70, which is screwed into an inner threaded region of the outer housing part 2.
[0066] In this way, the entire outer housing can be produced by means of a threaded connection.
[0067] That is to say, the electric machine is mounted on the bearing flange 1, and the outer housing part 2 is then slipped on and screwed. After the long screws 30 have been mounted and screwed, the flange part 31 is pressed towards the bearing flange 1 via the inner housing part arranged in between, thereby fixing the brake to the electric machine. The cover part 3 is then screwed onto the outer housing part 2.
[0068] The entire outer housing is thus completed by means of two threaded screwing processes when assembled.
[0069] The supply of the brake is carried out by means of the cable bushing 4 for low-voltage lines, in particular signal lines, and the supply of the stator winding is carried out by means of the cable bushing 5 for low-voltage lines.
[0070] The cable bushings 4 and 5 are here arranged on the flat cut-downs / flats of the outer housing part 2, which is otherwise configured as a hollow cylinder.
[0071] The advantage of the cut-downs when assembled is that the gripping properties of the otherwise very smooth outer housing part 2 are improved and the threaded connection can thus be achieved simply and reliably. It is also important here that the screwing angle reaches exactly the set value at the end of the threaded connection, whereby the following angular position of the outer housing part 2 relative to the flange part 31 is achieved, in which the cables passing through the cable bushings 4 and 5 respectively have the shortest length inside the outer housing part 2.
[0072] The two threads of the outer housing part 2 have the same thread type, in particular the two threads are right-handed threads. The assembly can thus be carried out very simply and with few errors.
[0073] The brake has a magnet which is connected to the flange piece 31 by means of a plurality of pegs, wherein an armature plate made of a ferromagnetic material is arranged relative to the magnet in a manner that cannot rotate relative to one another. The armature plate can be moved axially, i.e. parallel to the rotational axis of the rotor shaft. To this end, the armature plate has a plurality of recesses through which the pegs pass. The pegs thus act as guide elements for the armature plate.
[0074] The electrically energizable ring winding is received in a ring-shaped recess of the magnet, the ring axis of the ring winding being oriented coaxially to the rotational axis of the rotor shaft.
[0075] The hole disc-shaped brake block support has an inner toothing by means of which it is pushed onto and engages with the outer toothing of the annular drive piece. The drive piece is fitted onto the rotor shaft and connected thereto in a manner that cannot rotate relative to one another, in particular by means of a key connection. The brake block support is thus arranged in a manner that cannot rotate relative to but can move axially relative to the rotor shaft.
[0076] A spring element supported on the magnet presses against the armature plate. When the ring winding is energized, the armature plate is drawn towards the magnet against the spring force generated by the spring element. When the winding is not energized, the spring element presses the armature plate towards the brake block support, which is thus pressed onto the brake face of the flange piece 31, so that the brake blocks arranged on both axial sides of the brake block support are in frictional contact with the brake face on the one hand and with the armature plate on the other hand.
[0077] The brake described here is thus constructed on the flange piece 31, and 30 is fastened together with the flange piece 31 by means of fastening of the flange piece 31 by means of long screws.
[0078] In a further embodiment according to the application, the inner and outer housing pieces 2 are made of the same material and / or are constructed in one piece, in particular are integrally formed.
Claims
1. A motor, The electric motor has a housing having an outer housing part, a bearing flange and a flange part, It is characterized by: The outer housing member has a first thread, which is connected to the thread of the bearing flange. The outer housing member has a second thread connected to the thread of the flange member.
2. The motor according to claim 1, characterized in that The electric motor is a brake motor.
3. The motor according to claim 1 or 2, It is characterized by: The outer housing part is designed to be hollow cylindrical. and / or, A first flattened portion is formed on the outer surface of the outer housing part and has a continuous hole at which the first cable gland is arranged.
4. The motor according to claim 3, It is characterized by: The hollow inner housing part is arranged in the outer housing part and serves as the stator housing of the electric machine.
5. The motor according to claim 4, It is characterized by: The hollow inner housing part is inserted into the outer housing part and is connected to the outer housing part at least in a force-fitting manner.
6. The electric motor according to claim 1 or 2, It is characterized by: A first bearing of the rotor shaft of the electric machine is accommodated in the bearing flange. A second bearing of the rotor shaft of the electric machine is accommodated in the flange.
7. The motor according to claim 4, It is characterized by: The outer housing member is made of a different material than the inner housing member.
8. The motor according to claim 4, It is characterized by: Long screws spaced apart from each other in the circumferential direction pass through the notches of the flange member and through the holes of the inner housing member. The inner housing part is arranged between the bearing flange and the flange part in the axial direction. The corresponding threaded area of the corresponding long screw is screwed into the corresponding axially directed threaded hole of the bearing flange, and the screw head of the corresponding long screw presses the flange part toward the inner housing part, which is thereby pressed onto the bearing flange.
9. The motor according to claim 3, It is characterized by: The helix angle of the thread of the first thread is designed such that when the outer housing part is completely screwed into the thread of the bearing flange, for a cable passing through the first cable bushing, the shortest cable length can be achieved or reached for all possible helix angle positions within the outer housing part, the cable being a low-voltage cable.
10. The motor according to claim 3, It is characterized by: A second flattened portion is formed on the outer surface of the outer housing part. The second flattened portion has a continuous hole, and a second cable bushing is arranged at the hole of the second flattened portion.
11. The electric motor according to claim 10, It is characterized by: When the outer housing part is completely screwed into the thread of the bearing flange, the shortest cable length for the cable passing through the second cable bushing can be achieved or reached within the outer housing part for all possible helix angle positions, said cable being a low-voltage cable.
12. The motor according to claim 2, It is characterized by: The flange part has a braking surface which is a precision-machined surface.
13. The motor according to claim 2, It is characterized by: The brake pad support is connected to the rotor shaft in a non-rotatable manner via an annular driving member having an external tooth portion that is sleeved on the rotor shaft. The brake pad support is arranged to be movable in the axial direction. The brake pad support is in the shape of a perforated disk and is connected to the rotor shaft in a non-rotatable manner by means of a key connection. The inner toothing of the brake pad support is placed onto the outer toothing and engages with the outer toothing.
14. The electric motor according to claim 13, It is characterized in that The magnet connected to the flange by a bolt has an annular recess in which an energized winding is received. The ring axis is oriented coaxially with the axis of rotation of the rotor shaft, A ferromagnetic armature piece is arranged between the magnet and the brake pad support in the axial direction. The armature piece is connected to the magnet in a relatively non-rotatable manner and is arranged to be movable in the axial direction. The spring element supported on the magnet presses on the armature plate. The pin fixed in the magnet is connected to the flange part.
15. The electric motor according to claim 1 or 2, It is characterized in that The flange part, the bearing flange and the outer housing part are each made of stainless steel.