CN213693313U - Driver box structure of linear driver - Google Patents
Driver box structure of linear driver Download PDFInfo
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- CN213693313U CN213693313U CN202022647725.3U CN202022647725U CN213693313U CN 213693313 U CN213693313 U CN 213693313U CN 202022647725 U CN202022647725 U CN 202022647725U CN 213693313 U CN213693313 U CN 213693313U
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Abstract
The utility model relates to a linear drive's driver box structure, motor front end housing structure has in the outside of this driver box, motor front end housing structure's middle part has the motor shaft hole, the brush nest that is used for installing the carbon brush has on motor front end housing structure's the outer terminal surface, the bearing step that is used for installing the bearing has in the outer tip in motor shaft hole, spacing socket has on motor front end housing structure's the outer terminal surface, spacing picture peg of cartridge on the spacing socket, the front end fender of spacing picture peg is at the outer terminal surface in motor shaft hole, it is spacing to carry out the inside and outside axial to installing the bearing in motor shaft hole together with the bearing step. The utility model has the advantages that: the rotor bearing is limited through the limiting insertion plate, the assembly efficiency is greatly improved, and the rotor bearing has a reliable axial limiting effect.
Description
Technical Field
The utility model relates to a linear actuator technical field, especially a linear actuator's driver box structure.
Background
The linear driver is also called as an electric push rod, and the structure of the linear driver comprises a linear driving main body, a driver box body at the end part of the linear driving main body and a motor arranged on the driver box body, wherein a screw rod driving mechanism is arranged in the linear driving main body, a transmission mechanism is arranged in the driver box body, the motor drives the screw rod driving mechanism through the transmission mechanism, a motor front end cover structure is arranged on the driver box body, and the front end of the motor is arranged on the driver box body through the motor front end cover structure. The motor front end cover is structurally provided with a motor shaft hole, and a motor shaft of the motor penetrates through the motor shaft hole to enter the driver box body and is in driving fit with the transmission mechanism. The end face of the motor front end cover structure is provided with a brush nest for mounting a carbon brush. The outer end of the motor shaft hole is internally provided with a bearing step for mounting a rotor bearing.
In order to prevent the axial movement of the rotor bearing in the prior art, the rotor bearing is pressed on a bearing step of a motor shaft hole and is in a tight fit relation, meanwhile, a screw hole needs to be formed in the side face of the motor front end cover structure, and the rotor bearing is supported on the side face of the rotor bearing through a screw screwed into the screw hole, so that the problem in subsequent use is avoided.
The assembling structure of the rotor bearing has the following disadvantages: the dependence tight fit of rotor bearing and motor shaft hole limits axial displacement, can reduce the installation effectiveness, but also needs special pressure equipment frock, if reduce the tight fit degree, consolidates through the screw of side, can influence pivot bearing's concentricity, twists a screw moreover and also do not benefit to the improvement installation effectiveness more.
In addition, the drive cabinet in the prior art has other disadvantages:
when the motor internal circuit of the existing linear driver is connected with the power line inside the driver box body, a threading hole needs to be formed in the motor front end cover structure, the power line is connected after penetrating through the threading hole, the power line needs to be pressed and fixed, the assembly efficiency is influenced, and the use can be influenced under the condition that the power line is unstable in fixing.
The front end of a brush nest of a conventional driver box body is opened, the rear end of the brush nest is closed, a carbon brush is ejected out by a spring in a brush worm to be contacted with a commutator of a motor rotor, and the carbon brush mounting structure only can mount the carbon brush in advance to be pressed into the rotor when the motor is assembled, so that the mounting efficiency is low and the carbon brush is easy to damage. For this purpose, a drive housing structure is known in the prior art, in which the rear end of the brush socket is closed by a brush socket plug, so that the carbon brush can be inserted from the rear end of the brush socket after the rotor has been pressed in, and the brush socket plug is attached after the carbon brush and the spring have been inserted, so that the rear end of the brush socket is closed. However, the carbon brush mounting structure still has the defects of more parts and inconvenience for improving the assembly efficiency;
in order to reduce the electromagnetic interference generated by the motor of the linear driver during operation, the capacitance and the inductance of the electrical elements for reducing the electromagnetic interference need to be connected in the circuit of the motor, and the electrical elements are welded in the motor and are not effectively positioned, which is not beneficial to improving the reliability.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: a driver case structure of a linear driver is provided for improving the assembly efficiency of a rotor bearing.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a driver box structure of linear driver, motor front end cap structure has in the outside of this driver box, motor front end cap structure's middle part has the motor shaft hole, the brush nest that is used for installing the carbon brush has on the outer terminal surface of motor front end cap structure, the bearing step that is used for installing the bearing has in the outer tip in motor shaft hole, spacing socket has on the outer terminal surface of motor front end cap structure, spacing picture peg of cartridge on the spacing socket, the front end fender of spacing picture peg is at the outer terminal surface in motor shaft hole, it is spacing to carry out the axial inside and outside to installing the bearing in the motor shaft hole together with the bearing step.
Further inject, spacing socket carries out the cartridge through jack and spacing picture peg in the spacing socket, jack both ends opening, and the opening at jack both ends is located the front end and the rear end of spacing socket respectively.
Further inject, spacing socket has more than two to encircle the motor shaft hole and evenly arrange.
Further limiting, a snap fit structure is arranged between the limiting plugboard and the jack of the limiting socket and is used for inserting and limiting the limiting plugboard; or the rear end of the limiting inserting plate is provided with an end which is larger than the inserting hole, and the end is clamped between the rear end of the limiting socket and the inner wall of the motor shell which is arranged on the front end cover structure of the motor to carry out inserting and limiting on the limiting inserting plate.
Further inject, still be equipped with binding post on the motor front end housing structure, binding post extends to motor front end housing structure's interior terminal surface one side.
And further limiting, the wiring terminal is in a sheet shape, a corresponding press mounting hole is formed in the motor front end cover structure, and the wiring terminal is pressed on the motor front end cover structure through the press mounting hole.
Further inject, the front end and the equal opening in rear end of brush nest, the side of brush nest has the groove of stepping down, still have on the outer terminal surface of motor front end housing structure and push away and support the spring, it installs outside the brush nest to push away to support the spring, the end that stretches out that pushes away to the spring gets into the brush nest and acts on the carbon brush through the groove of stepping down, it stretches out to promote the opening of carbon brush through the front end of brushing the nest, it is the torsional spring to push away to support the spring, the torsional spring passes through the spring mount pad to be installed in the side of brushing the nest, the torsional spring passes through the knuckle arm and acts.
Further defined, the motor front end cover structure is provided with an electric element positioning structure on the outer end face, and the electric element positioning structure is used for positioning the electric element.
Further inject, still have motor mounting bolt hole post and be used for the location chimb of the front port of location motor housing on the outer terminal surface of motor front end housing structure, motor mounting bolt hole post is located the chimb inboard of location.
Further inject, brush nest, spacing socket and driver box as an organic whole injection moulding structure on motor front end housing structure and the motor front end housing structure, the driver box is upper and lower components of a whole that can function independently structure, divide into box and case lid, and motor front end housing structure is located box or case lid.
The utility model has the advantages that: the rotor bearing is limited through the limiting insertion plate, the stability is better, the assembly efficiency is greatly improved, and the rotor bearing has a reliable axial limiting effect.
In addition, the wiring is carried out through the wiring terminal of the motor circuit, the wiring difficulty can be reduced, and the wiring terminal is fixed on the front end cover structure of the motor, so that the circuit can be positioned, and the circuit is prevented from being displaced due to the working vibration of the motor.
The front end and the rear end of the brush nest are both opened, and the carbon brush is pushed out by pushing the spring, so that the rotor can be installed firstly and then the carbon brush can be installed, the installation efficiency is improved, and the structure is simple;
the electric element positioning structure is arranged on the outer end face of the motor front end cover structure, and the capacitor and the inductor of the electric element for reducing electromagnetic interference are integrally positioned on the outer end face of the motor front end cover structure, so that the electric element is prevented from being displaced due to working vibration of the motor.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic front structural view of a box body in embodiment 1 of the present invention;
fig. 2 is a schematic back structure view of the box body of embodiment 1 of the present invention;
fig. 3 is a perspective view of the back of the case according to embodiment 1 of the present invention;
fig. 4 is a schematic view of the overall structure of a drive case according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of the motor of embodiment 1 of the present invention mounted on a driver housing;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
fig. 7 is a schematic view of the overall structure of a linear actuator having the actuator casing structure;
FIG. 8 is a cross-sectional view B-B of FIG. 1;
in the figure: 1. the novel motor assembly comprises a brush nest, 1-1. a relief groove, 2. a bearing step, 3. a limiting socket, 4. a limiting plug board, 4-1. an end, 5. a wiring terminal, 5-1. a front plug, 5-2. a back plug, 6. a pushing spring, 7. a spring mounting seat, 8. a motor mounting bolt hole column, 9. a positioning convex edge, 10-1. a motor shell, 10-2. a motor bolt, 10-3. a rotor bearing, 11. a capacitor, 12. an inductor, 13. an inductor positioning hole column, 14. a carbon brush, 15-1. a box body, 15-2. a box cover and 16. a power line.
Detailed Description
Example 1: as shown in fig. 1 to 7, a driver box structure of a linear driver is provided, a motor front end cover structure is provided at an outer side of the driver box, a motor shaft hole is provided at a middle part of the motor front end cover structure, a brush socket 1 for installing a carbon brush 14 is provided on an outer end face of the motor front end cover structure, a bearing step 2 for installing a rotor bearing 10-3 is provided in an outer end part of the motor shaft hole, a limit socket 3 is provided on the outer end face of the motor front end cover structure, a limit inserting plate 4 is inserted on the limit socket 3, a front end of the limit inserting plate 4 is blocked on the outer end face of the motor shaft hole, and the rotor bearing 10-3 installed in a motor shaft hole is axially limited inside and outside together with the. The driver box body is of an upper and lower split structure and is divided into a box body 15-1 and a box cover 15-2, and the front end cover structure of the motor is positioned on the box body 15-1 or the box cover 15-2. The motor front end cover structure is located on the box body 15-1 in the embodiment.
The limiting socket 3 is inserted into the limiting inserting plate 4 through a jack in the limiting socket 3, two ends of the jack are open, and the openings at two ends of the jack are respectively located at the front end and the rear end of the limiting socket 3.
Spacing socket 3 has more than two to evenly arrange around the motor shaft hole, spacing socket 3 specifically is two in this embodiment.
The rear end of the limiting inserting plate 4 is provided with an end head 4-1 which is larger than the inserting hole, the end head 4-1 is clamped between the rear end of the limiting socket 3 and the inner wall of a motor shell 10-1 which is arranged on a motor front end cover structure, and the limiting inserting plate 4 is inserted and limited. In the embodiment, the limiting insertion plate 4 is L-shaped, and the end 4-1 at the rear end of the limiting insertion plate 4 is a bent part at the rear end of the limiting insertion plate 4.
The motor front end cover structure is also provided with a wiring terminal 5, and the wiring terminal 5 extends to one side of the inner end face of the motor front end cover structure.
The wiring terminal 5 is in a sheet shape, a corresponding press mounting hole is formed in the motor front end cover structure, and the wiring terminal 5 is press mounted on the motor front end cover structure through the press mounting hole.
As shown in fig. 8, the end of the connection terminal 5 located on one side of the outer end face of the motor front end cover structure is provided with two front plugs 5-1, the cables inside the motor are respectively plugged on the front plugs 5-1 to connect, so that the cables inside the motor are connected, the end of the connection terminal 5 extending to one side of the inner end face of the motor front end cover structure is provided with a back plug 5-2, the power line 16 penetrating into the inner cavity of the driver box body is plugged on the back plug, so that the cables inside the motor plugged on the front plugs 5-1 are connected with the wire-free holes of the power line 16.
The front end and the rear end of the brush nest 1 are both open, the side face of the brush nest 1 is provided with a yielding groove 1-1, the outer end face of the motor front end cover structure is further provided with a pushing and supporting spring 6, the pushing and supporting spring 6 is installed outside the brush nest 1, the extending end of the pushing and supporting spring 6 enters the brush nest 1 through the yielding groove 1-1 and acts on the carbon brush 14, the carbon brush 14 is pushed to extend through the opening of the front end of the brush nest 1, the pushing and supporting spring 6 is a torsion spring, the torsion spring is installed on the side face of the brush nest 1 through the spring installation seat 7, and the torsion spring acts on the carbon brush 14 through a torsion arm.
The outer end face of the motor front end cover structure is integrated with electric elements for resisting electromagnetic interference, and the electric elements comprise a capacitor 11 and an inductor 12. In order to position the electric element integrated on the outer end face of the motor front end cover structure, an electric element positioning structure is arranged on the outer end face of the motor front end cover structure, and in the embodiment, the electric element positioning structure is provided with an inductor positioning hole column 13, and an inductor 12 is positioned in an inner hole of the inductor positioning hole column 13.
The outer end face of the motor front end cover structure is also provided with a motor mounting bolt hole column 8 and a positioning convex edge 9 used for positioning a front port of the motor shell 10-1, and the motor mounting bolt hole column 8 is positioned on the inner side of the positioning convex edge 9.
Motor front end housing structure and brush nest 1, spacing socket 3 and the driver box of motor front end housing structure are injection moulding structure as an organic whole. In the conventional technology, the brush nest 1 needs a matched brush holder plate to be installed, the brush holder plate is assembled on the front end cover structure of the motor through screws, the assembling efficiency is low, the matching precision is poor, and the product consistency is low. In the embodiment, the matching precision of the driver box body and the consistency of products are improved through integral injection molding, the assembling procedures are reduced, and the cost is saved.
Fig. 7 is a linear drive having the structure of a drive case including a linear drive body, a drive case at an end of the linear drive body, and a motor mounted on the drive case.
As shown in fig. 5 and 6, the front end of the motor housing 10-1 of the motor is inserted into the front end cover structure of the motor through the positioning flange 9, the long bolt inserted from the rear end of the motor housing 10-1 is screwed on the motor mounting bolt hole column 8, and the motor housing 10-1 is tightly pressed and mounted on the front end cover structure of the motor.
Compared with the embodiment 1, the embodiment 2 has the difference that a snap fit structure is arranged between the limiting insertion plate 4 and the insertion holes of the limiting socket 3 and is used for inserting and limiting the limiting insertion plate 4.
Claims (10)
1. The utility model provides a driver box structure of linear driver, has motor front end cap structure in the outside of this driver box, and motor front end cap structure's middle part has the motor shaft hole, has brush nest (1) that is used for installing carbon brush (14) on the outer terminal surface of motor front end cap structure, has bearing step (2) that are used for installing rotor bearing (10-3) in the outer tip in the motor shaft hole, characterized by: the outer end face of the motor front end cover structure is provided with a limiting socket (3), a limiting insertion plate (4) is inserted into the limiting socket (3), the front end of the limiting insertion plate (4) is blocked at the outer end face of a motor shaft hole, and the limiting insertion plate and a bearing step (2) are used for limiting the axial direction of a rotor bearing (10-3) installed in the motor shaft hole.
2. The driver housing structure of a linear driver as claimed in claim 1, wherein: spacing socket (3) carry out the cartridge through jack and spacing picture peg (4) in spacing socket (3), jack both ends opening, the opening at jack both ends is located the front end and the rear end of spacing socket (3) respectively.
3. The driver housing structure of a linear driver as claimed in claim 1, wherein: the limiting sockets (3) are more than two and are uniformly distributed around the shaft hole of the motor.
4. The driver housing structure of a linear driver as claimed in claim 2, wherein: a snap fit structure is arranged between the limiting plugboard (4) and the jack of the limiting socket (3) and is used for inserting and limiting the limiting plugboard (4);
or the rear end of the limiting inserting plate (4) is provided with an end head (4-1) larger than the inserting hole, and the end head (4-1) is clamped between the rear end of the limiting socket (3) and the inner wall of a motor shell (10-1) arranged on the motor front end cover structure to carry out inserting limiting on the limiting inserting plate (4).
5. The driver housing structure of a linear driver as claimed in claim 1, wherein: the motor front end cover structure on still be equipped with binding post (5), binding post (5) extend to motor front end cover structure's interior terminal surface one side.
6. The driver housing structure of a linear driver according to claim 5, wherein: the wiring terminal (5) is in a sheet shape, a corresponding press mounting hole is formed in the motor front end cover structure, and the wiring terminal (5) is press mounted on the motor front end cover structure through the press mounting hole.
7. The driver housing structure of a linear driver as claimed in claim 1, wherein: the front end and the rear end of the brush nest (1) are both provided with openings, the side surface of the brush nest (1) is provided with a abdicating groove (1-1), the outer end surface of the motor front end cover structure is also provided with a pushing and supporting spring (6), the pushing and supporting spring (6) is arranged outside the brush nest (1), the extending end of the pushing and supporting spring (6) enters the brush nest (1) through the abdicating groove (1-1) and acts on the carbon brush (14), the carbon brush (14) is pushed to extend through the opening at the front end of the brush nest (1),
the pushing spring (6) is a torsion spring, the torsion spring is installed on the side face of the brush nest (1) through a spring installation seat (7), and the torsion spring acts on the carbon brush (14) through a torsion arm.
8. The driver housing structure of a linear driver as claimed in claim 1, wherein: the outer end face of the motor front end cover structure is provided with an electric element positioning structure for positioning an electric element.
9. The driver housing structure of a linear driver as claimed in claim 1, wherein: the motor front end cover structure is characterized in that the outer end face of the motor front end cover structure is also provided with a motor mounting bolt hole column (8) and a positioning convex edge (9) used for positioning a front port of a motor shell (10-1), and the motor mounting bolt hole column (8) is positioned on the inner side of the positioning convex edge (9).
10. The driver housing structure of a linear driver as claimed in claim 1, wherein: the motor front end cover structure, the brush nest (1) on the motor front end cover structure, the limit socket (3) and the driver box body are in an integral injection molding structure,
the driver box body is of an upper and lower split structure and is divided into a box body (15-1) and a box cover (15-2), and the front end cover structure of the motor is positioned on the box body (15-1) or the box cover (15-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022647725.3U CN213693313U (en) | 2020-11-16 | 2020-11-16 | Driver box structure of linear driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022647725.3U CN213693313U (en) | 2020-11-16 | 2020-11-16 | Driver box structure of linear driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213693313U true CN213693313U (en) | 2021-07-13 |
Family
ID=76732348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022647725.3U Active CN213693313U (en) | 2020-11-16 | 2020-11-16 | Driver box structure of linear driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213693313U (en) |
-
2020
- 2020-11-16 CN CN202022647725.3U patent/CN213693313U/en active Active
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