Multi-motor integrated high-power motor

Abstract

The utility model relates to the technical field of motors, and provides a multi-motor integrated high-power motor, which comprises a first motor, a second motor, a rotating shaft and a casing, the first motor and the second motor are sequentially connected along the rotating shaft, the bottom of the rotating shaft is mounted on the first motor and penetrates through the first motor and the second motor, and the first motor and the second motor synchronously drive the rotating shaft to rotate; the first motor and the second motor are installed in the machine shell, the machine shell comprises an upper cover and a side cover, the upper cover is connected to the side cover through screws, and motor shell assemblies of the first motor and the second motor are connected with the side cover. According to the multi-motor integrated high-power motor provided by the utility model, the same rotating shaft is provided with two motors to jointly drive the rotating shaft to rotate, theoretically, the output power is twice that of the original single motor, and the purpose of increasing the power under the condition that the diameter of the motor is kept unchanged is achieved; and meanwhile, the two motors are arranged in the same shell, so that the overall attractiveness of the motors is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, especially a kind of multi-motor integrated high-power motor. BACKGROUND

[0002] At present, in the field of medical equipment, such as electric lifting bed, electric heavy load cart and other heavy load medical equipment, wheel drive motor is built-in wheel, needs to bear larger load, but at the same time, because of the height of gravity center, equipment stability and other reasons, wheel diameter cannot be too large, need to ensure that wheel drive motor diameter does not change, output greater power.

[0003] But the motor used in the electric lifting bed and the electric heavy load cart and other heavy load medical equipment cannot effectively coordinate the wheel diameter and the wheel driving power. Therefore, it is urgent to develop a small-diameter motor capable of high-power output. SUMMARY

[0004] To solve the above problems in the prior art, the utility model provides a kind of multi-motor integrated high-power motor, including first motor, second motor, shaft, machine shell, first motor and second motor are sequentially connected along shaft, the bottom of shaft is installed to first motor, passes through first motor and second motor, and first motor and second motor drive shaft rotation synchronously;First motor and second motor are installed in the inside of machine shell, and the machine shell includes upper cover and side cover, the upper cover is connected to the side cover by screw, and the motor shell assembly of first motor and second motor is connected with the side cover.

[0005] In an embodiment, first motor and second motor each include motor shell assembly, rotor assembly and stator assembly, rotor assembly and stator assembly are fixed in the inside of motor shell assembly, shaft passes through the motor shell assembly of first motor and second motor, and the rotor assembly of first motor and second motor is locked and fixedly connected with shaft.

[0006] In an embodiment, the motor shell assembly includes motor cover, motor base, screw, bearing sleeve and bearing, the edge of motor cover and motor base assembly is connected by screw, bearing sleeve is locked and fixed with motor cover by screw, bearing is installed in bearing sleeve, and shaft rotates through bearing.

[0007] In an embodiment, bearing is provided with shaft elastic retainer ring on both sides, for positioning shaft.

[0008] In an embodiment, the rotor assembly includes armature sheet, insulating sheet and rotating disc, armature sheet and rotating disc are provided with shaft hole, for shaft to pass through, rotating disc is fixed to shaft, insulating sheet bonds armature sheet and rotating disc together, armature sheet drives rotating disc to rotate, in turn drives shaft to rotate.

[0009] In an embodiment, the rotating disc is fixed to the shaft by a fastening screw.

[0010] In an embodiment, the stator assembly comprises a magnetic steel, a brush assembly and an output wire, the magnetic steel is fixed to the inner side of the motor base; the bottom of the brush assembly is fixed to the motor base, and the brush top of the brush assembly is in abutment with the armature sheet.

[0011] In an embodiment, the brush assembly comprises a positive brush and a negative brush, and the wire is connected to the positive brush and the negative brush respectively, and the wire outputs the wire through the wire output hole arranged on the motor base.

[0012] In an embodiment, the magnetic steel is bonded to the inner side of the motor base through an adhesive.

[0013] In an embodiment, the wire is provided with a wire sleeve outside.

[0014] Based on the above, compared with the prior art, the multi-motor integrated high-power motor provided by the utility model, two motors are arranged on the same rotating shaft to drive the rotating shaft to rotate, the theoretical output power is twice that of the original single motor, the purpose of power increase is realized under the condition that the diameter of the motor remains unchanged, and meanwhile, the two motors are installed in the same casing, so that the overall appearance of the motor is ensured.

[0015] Other features and advantages of the present application will be described in the following specification, and some of them will become apparent from the specification, or will be understood through implementation of the present application. The purpose and other advantages of the present application can be achieved and obtained through the structures specifically pointed out in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings. In the following description, the positional relationship described in the drawings is the direction of the components shown in the drawings as the reference if not specially indicated.

[0017] Figure 1 The overall structure schematic diagram of the multi-motor integrated high-power motor provided by an embodiment of the present application is shown in the figure;

[0018] Figure 2 The top view of the multi-motor integrated high-power motor provided by an embodiment of the present application is shown in the figure;

[0019] Figure 3 The structure schematic diagram of the multi-motor integrated high-power motor provided by an embodiment of the present application after removing the casing is shown in the figure;

[0020] Figure 4The utility model provides a side view of multi motor integrated high -power motor of one embodiment provides for the utility model,

[0021] Figure 5 For Figure 4 A-A cross section view.

[0022] Reference signs:

[0023] 10 - first motor, 11 - motor shell assembly, 111 - motor cover, 112 - motor base, 113 - screw, 114 - bearing sleeve, 115 - bearing, 116 - elastic baffle ring for shaft, 12 - rotor assembly, 121 - armature piece, 122 - insulating piece, 123 - rotating disc, 124 - fastening screw, 125 - adjusting gasket, 13 - stator assembly, 131 - magnetic steel, 132 - brush assembly, 133 - output wire, 134 - wire protection sleeve, 20 - second motor, 30 - rotating shaft, 40 - casing, 41 - upper cover, 42 - side cover. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments; the technical features designed in different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the description of the utility model, it needs to be explained that all the terms (including technical terms and scientific terms) used in the utility model have the same meaning as the meaning understood by the person skilled in the art to which the utility model belongs, and cannot be understood as the limitation of the utility model; it should be further understood that the terms used in the utility model should be understood as having the same meaning as the meaning of these terms in the context of the specification and the related field, and should not be understood in an idealized or overly formal sense, except that the utility model is defined as such.

[0026] The utility model provides a kind of multi motor integrated high -power motor, as Figures 1 to 3 As shown in the drawing, it includes first motor 10, second motor 20, rotating shaft 30, casing 40, first motor 10 and second motor 20 are sequentially connected along rotating shaft 30, the bottom of rotating shaft 30 is installed in first motor 10, passes through first motor 10 and second motor 20, and first motor 10 and second motor 20 drive rotating shaft 30 to rotate synchronously;

[0027] The first motor 10 and the second motor 20 are installed inside the casing 40, as shown in Figure 1 、 Figure 2 and Figure 4 , the casing 40 comprises an upper cover 41 and a side cover 42, the upper cover 41 is connected to the side cover 42 by screws 113, and the motor shell assemblies 11 of the first motor 10 and the second motor 20 are connected to the side cover 42.

[0028] Specifically, as shown in Figure 3 , the first motor 10 and the second motor 20 are preferably the same DC flat motor, the positive lead of the first motor 10 and the positive lead of the second motor 20 are connected as the output positive pole of the integrated motor, the negative lead of the first motor 10 and the negative lead of the second motor 20 are connected as the output negative pole of the integrated motor, the first motor 10 and the second motor 20 work simultaneously after being powered on, and they share the rotating shaft 30 to drive the rotating shaft 30 to rotate, theoretically the output power is twice that of the original single motor, achieving the purpose of increasing power under the condition of keeping the motor diameter unchanged.

[0029] In an embodiment, as shown in Figure 5 , the first motor 10 and the second motor 20 each comprise a motor shell assembly 11, a rotor assembly 12 and a stator assembly 13, the rotor assembly 12 and the stator assembly 13 are fixed inside the motor shell assembly 11, the rotating shaft 30 passes through the motor shell assemblies 11 of the first motor 10 and the second motor 20, and the rotor assemblies 12 of the first motor 10 and the second motor 20 are locked and connected with the rotating shaft 30. Specifically, the first motor 10 and the second motor 20 have the same structure and drive the motor to move synchronously, the motor shell assemblies 11 of the first motor 10 and the second motor 20 are each provided with a rotating shaft 30 hole for the rotating shaft 30 to pass through, the rotor assembly 12 and the stator assembly 13 are jointly installed in the motor shell assembly 11, the rotor assembly 12 is connected to the rotating shaft 30 to drive the rotating shaft 30 to rotate, and the stator assembly 13 is fixed.

[0030] In an embodiment, the motor shell assembly 11 comprises a motor cover 111, a motor base 112, screws 113, a bearing sleeve 114 and a bearing 115, the edges of the motor cover 111 and the motor base 112 assembly are connected by the screws 113, the bearing sleeve 114 is locked with the motor cover 111 by the screws 113, the bearing 115 is installed in the bearing sleeve 114, and the rotating shaft 30 rotates through the bearing 115.

[0031] Preferably, the bearing 115 is provided with shaft elastic retainer rings 116 on both sides for positioning the rotating shaft 30. Specifically, the shaft elastic retainer rings 116 are provided on both sides of the bearing 115, i.e. the rotating shaft 30 and the bearing 115 are positioned to prevent relative movement between them, which can also seal the motor to some extent.

[0032] In one embodiment, the rotor assembly 12 includes an armature sheet 121, an insulating sheet 122, and a rotating disc 123. The armature sheet 121 and the rotating disc 123 are provided with a hole for the rotating shaft 30 to pass through. The rotating disc 123 is fixed to the rotating shaft 30. The insulating sheet 122 bonds the armature sheet 121 and the rotating disc 123 together. The armature sheet 121 drives the rotating disc 123 to rotate, and in turn drives the rotating shaft 30 to rotate. Preferably, the rotating disc 123 is fixed to the rotating shaft 30 by a fastening screw 124.

[0033] In one embodiment, the stator assembly 13 includes a magnetic steel 131, a brush assembly 132, an output wire 133, and a wire sheath 134. The magnetic steel 131 is fixed to the inside of the motor base 112. The bottom of the brush assembly 132 is fixed to the motor base 112. The brush assembly 132 is in contact with the armature sheet 121 at the top of the brush.

[0034] In one embodiment, the brush assembly 132 includes a positive brush and a negative brush. The wires are connected to the positive brush and the negative brush, respectively. The wires output the output wire 133 through the wire output hole provided in the motor base 112. The magnetic steel 131 is bonded to the inside of the motor base 112 by an adhesive. The outside of the wire is provided with a wire sheath 134.

[0035] Specifically, the first motor 10 includes a first motor 10 shell assembly, a first rotor assembly 12, a first stator assembly 13, and various connecting members. The first motor 10 shell assembly includes a first motor 10 cover, a first motor 10 base, a screw 113, a first bearing sleeve 114, and a first bearing 115. The first bearing 115 is installed in the first bearing sleeve 114. The first motor 10 cover and the first bearing sleeve 114 are locked by the screw 113. The first rotor assembly 12 includes an armature sheet 121, an insulating sheet 122, and a rotating disc 123. The insulating sheet 122 bonds the armature sheet 121 and the rotating disc 123 together. The first stator assembly 13 includes a magnetic steel 131, a brush assembly 132, a positive and negative output wire 133, and a wire sheath 134. The brush assembly 132 includes a brush, a brush holding sleeve, and an insulating sleeve. The magnetic steel 131 is bonded to the inside of the motor base 112 by an adhesive. The brush assembly 132 is divided into a positive brush assembly 132 and a negative brush assembly 132. The positive and negative brush assemblies 132 are installed in the holes of the motor base 112, respectively. The positive and negative output wires 133 are connected to the positive and negative brushes, respectively. The positive and negative output wires 133 are connected to the output wire 133 through the wire output hole of the motor base 112. The shaft passes through the bearing 115 hole of the first motor 10 shell assembly and is axially positioned by the shaft elastic retainer 116. The rotor assembly 12 is installed on the shaft and is axially positioned by the shaft elastic retainer 116 and the adjusting washer 125. The rotating disc 123 is locked on the shaft by the fastening screw 113. The first motor 10 shell assembly is locked on the shell by the screw 113. The first motor 10 shell assembly, the first rotor assembly 12, and the first stator assembly 13 are assembled together and are installed on the first motor 10 shell assembly.

[0036] The second motor 20 comprises a second motor 20 shell assembly 11, a second rotor assembly 12, a second stator assembly 13 and connecting members. The second motor 20 shell assembly comprises a second motor 20 cover 111, a second motor 20 base 112, a screw 113, a second bearing sleeve 114 and a second bearing 115. The second bearing 115 is arranged in the second bearing sleeve 114, the second bearing 115 is locked on the motor shell 40 of the second motor 20 through the screw 113 passing through the rotating shaft 30, and then the motor shell 40 is locked on the machine shell 40 through the screw 113. The second rotor assembly 12 has the same structure as the first rotor assembly 12, is locked on the rotating shaft 30 through the locking screw 113 passing through the rotating shaft 30, and is adjusted by the adjusting gasket 125 between the bearing 115 and the rotating disc 123. The second motor 20 shell assembly 11 has the same structure as the first motor 10 shell assembly and is assembled to the machine shell 40.

[0037] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the present application can only be improved in one or several aspects, and it is not necessary to solve all the technical problems listed in the prior art or background art at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be regarded as a limitation of the claim.

[0038] Although terms such as first motor, motor shell assembly, motor cover, motor base, screw, bearing sleeve, bearing, shaft elastic retainer, rotor assembly, armature sheet, insulating sheet, rotating disc, locking screw, adjusting gasket, stator assembly, magnetic steel, brush assembly, output wire, wire sleeve, second motor, rotating shaft, machine shell, upper cover and side cover are used more in this paper, the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application; the terms "first", "second", etc. (if exist) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0039] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-motor integrated high-power motor, characterized in that: It includes a first motor, a second motor, a rotating shaft, and a housing. The first motor and the second motor are connected in sequence along the rotating shaft. The bottom of the rotating shaft is mounted on the first motor and passes through the first motor and the second motor. The first motor and the second motor drive the rotating shaft to rotate synchronously. The first motor and the second motor are installed inside the housing. The housing includes a top cover and a side cover. The top cover is connected to the side cover by screws. The motor housing assemblies of the first motor and the second motor are connected to the side cover.

2. The multi-motor integrated high-power motor according to claim 1, characterized in that: Both the first motor and the second motor include a motor housing assembly, a rotor assembly, and a stator assembly. The rotor assembly and the stator assembly are fixed inside the motor housing assembly. The rotating shaft passes through the motor housing assemblies of the first motor and the second motor, and the rotor assemblies of the first motor and the second motor are locked to the rotating shaft.

3. The multi-motor integrated high-power motor according to claim 2, characterized in that: The motor housing assembly includes a motor cover, a motor base, screws, a bearing sleeve, and a bearing. The motor cover is connected to the edge of the motor base assembly by the screws. The bearing sleeve is locked to the motor cover by the screws. The bearing is installed inside the bearing sleeve, and the rotating shaft passes through the bearing for rotation.

4. The multi-motor integrated high-power motor according to claim 3, characterized in that: The bearing is provided with elastic retaining rings on both sides for positioning the rotating shaft.

5. The multi-motor integrated high-power motor according to claim 3, characterized in that: The rotor assembly includes an armature plate, an insulating plate, and a turntable. The armature plate and the turntable are provided with shaft holes for the shaft to pass through. The turntable is fixed to the shaft. The insulating plate bonds the armature plate and the turntable together. The armature plate drives the turntable to rotate, which in turn drives the shaft to rotate.

6. The multi-motor integrated high-power motor according to claim 5, characterized in that: The turntable is fixed to the rotating shaft by fastening screws.

7. The multi-motor integrated high-power motor according to claim 5, characterized in that: The stator assembly includes a magnet, a brush assembly, and output wires. The magnet is fixed inside the motor mount. The bottom of the brush assembly is fixed to the motor mount, and the top of the brush of the brush assembly abuts against the armature plate.

8. The multi-motor integrated high-power motor according to claim 7, characterized in that: The brush assembly includes a positive brush and a negative brush, and the wires are respectively connected to the positive brush and the negative brush. The wires are output through the wire outlet hole provided in the motor base.

9. The multi-motor integrated high-power motor according to claim 7, characterized in that: The magnet is bonded to the inside of the motor base with an adhesive.

10. The multi-motor integrated high-power motor according to claim 7, characterized in that: The conductor is fitted with a protective sleeve on the outside.

Images