CN209620155U - A kind of hollow shaft motor direct-drive type swing mechanism and large excavator - Google Patents
A kind of hollow shaft motor direct-drive type swing mechanism and large excavator Download PDFInfo
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- CN209620155U CN209620155U CN201920153871.5U CN201920153871U CN209620155U CN 209620155 U CN209620155 U CN 209620155U CN 201920153871 U CN201920153871 U CN 201920153871U CN 209620155 U CN209620155 U CN 209620155U
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- hollow shaft
- connector
- swing mechanism
- drive type
- type swing
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Abstract
The utility model provides a kind of hollow shaft motor direct-drive type swing mechanism and large excavator comprising: hollow shaft motor, including rotor, stator, shell and hollow shaft, stator sleeve is outside rotor, and fix inside the shell, rotor covers outside hollow shaft, and is fixedly connected with hollow shaft；Rotating shaft is fixedly connected with hollow shaft.The utility model directly drives rotating shaft rotation using hollow shaft motor, eliminates huge deceleration mechanism, high transmission accuracy, and structure is simple, intensive compact, small in size, light-weight, noise is small, long service life, production cost is low, reduces production, use and maintenance cost.
Description
Technical field
The utility model relates to opencut large excavator field, especially a kind of hollow shaft motor direct-drive type swing mechanism
And large excavator.
Background technique
The swing mechanism of existing large excavator is all by motor drive to speed reducer currently on the market, is passed again by speed reducer
It moves to rotating shaft, rotating shaft drives revolution pinion gear and revolution bull gear drive, the huge structure of swing mechanism, transmission accuracy
Low, noise is big, and service life is short, and maintenance capacity is big, and use cost is high.
Utility model content
The purpose of the utility model is to provide a kind of hollow shaft motor direct-drive type swing mechanism and large excavators, to solve
Huge structure existing for existing large excavator swing mechanism, transmission accuracy is low, noise is big, service life is short, maintenance capacity is big, raw
Produce problem at high cost, that use and maintenance is at high cost.
In order to achieve the above objectives, the utility model proposes a kind of hollow shaft motor direct-drive type swing mechanisms comprising: it is hollow
Spindle motor, including rotor, stator, shell and hollow shaft, the stator sleeve are fixed in the shell outside the rotor,
The rotor covers outside the hollow shaft, and is fixedly connected with the hollow shaft；Rotating shaft is fixedly connected with the hollow shaft.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the hollow shaft motor further includes set on described
The connector of hollow shaft one end, the connector and the hollow shaft are detachably connected, and the rotating shaft passes through the connection
Part and the hollow axis connection.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the rotating shaft and the connector are keyed.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the connector and the hollow shaft pass through spiral shell
It tethers and connects.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the connector and the hollow shaft are keyed.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the connector is cylindrical, the connector
It is arranged in the hollow shaft, is keyed between the connector and the hollow shaft by columnar connection, the connecting key
One end there is engaging lug, the lateral wall of the connector is concavely provided with keyway, offers on the side wall of the hollow shaft and institute
The keyway for stating connector is corresponding and the keyhole that is connected, the keyhole of the hollow shaft are stepped hole, and the connecting key passes through institute
The keyhole of hollow shaft is stated, and is protruded into the keyway of the connector, the step in the keyhole of the engaging lug and the hollow shaft
It is bolted.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein distinguish contact one in the both ends of the connector
Retaining ring, the retaining ring are embedded in the inner sidewall of the hollow shaft.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the connector is flange shape axle sleeve, the company
Fitting includes axle sleeve and the flange flange that is connected on the outside of described axle sleeve one end, and the flange flange is located at outside the hollow shaft
Portion, the end face of the flange flange recline the end face of the hollow shaft, and the axle sleeve is nested in the hollow shaft, the axle sleeve
It is keyed with the hollow shaft.
Hollow shaft motor direct-drive type swing mechanism as described above, wherein the both ends lateral wall of the hollow shaft with it is described
A bearing is respectively equipped between shell, the hollow shaft and the bearing are interference fitted.
The utility model also proposes a kind of large excavator comprising above-mentioned hollow shaft motor direct-drive type swing mechanism.
The characteristics of hollow shaft motor direct-drive type swing mechanism and large excavator of the utility model and advantage are:
The utility model directly drives rotating shaft rotation using hollow shaft motor, eliminates huge deceleration mechanism, is driven
Precision is high, and structure is simple, and intensive compact, small in size, light-weight, noise is small, and long service life, production cost is low, reduces life
Production, use and maintenance cost.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the schematic diagram of one embodiment of the hollow shaft motor direct-drive type swing mechanism of the utility model；
Fig. 2 is the schematic diagram of one embodiment of the utility model hollow mandrel motor；
Fig. 3 is the schematic diagram of one embodiment that connector is connected with hollow shaft in the utility model；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the schematic diagram of connecting key in Fig. 3；
Fig. 6 is the top view of Fig. 5.
Main element label declaration:
1, rotor；2, connector；3, hollow shaft；4, inner spline groove；5, bearing；6, stator；
7, shell；8, hollow shaft motor；9, rotating shaft；10, connecting key；11, engaging lug；12, bolt；
13, retaining ring.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.
As shown in Figure 1 and Figure 2, the utility model proposes a kind of hollow shaft motor direct-drive type swing mechanisms comprising hollow shaft
Motor 8 and rotating shaft 9, hollow shaft motor 8 include rotor 1, stator 6, shell 7 and hollow shaft 3,6 sets of stator outside rotor 1, and
It is fixed in shell 7,1 set of rotor is fixedly connected outside hollow shaft 3, and with hollow shaft 3, and stator 6 can generate rotation after powered up
Magnetic field, has annular gap between rotor 1 and stator 6, rotor 1 can rotate under the action of the rotating excitation field of the generation of stator 6, turn
Son 1 can drive hollow shaft 3 to rotate together in rotation；Rotating shaft 9 (or being rotary vertical shaft) is fixedly connected with hollow shaft 3, is turned
Son 1 can drive hollow shaft 3 and rotating shaft 9 to rotate together in rotation.
The utility model directly drives the rotation of rotating shaft 9 using hollow shaft motor, eliminates huge deceleration mechanism, is driven
Precision is high, and structure is simple, and intensive compact, small in size, light-weight, noise is small, and long service life, production cost is low, reduces life
Production, use and maintenance cost.
Preferably, motor is low-speed high-torque motor, is more suitable for directly driving the rotation of rotating shaft 9, such as the big torsion of low speed
Torque motor is permanent magnet low-speed high torque motor, can also be other low-speed high-torque motors certainly.
As shown in Figure 1 and Figure 2, in a preferred embodiment, hollow shaft motor 8 further includes being set to 3 one end of hollow shaft
Connector 2, connector 2 and hollow shaft 3 are detachably connected, and rotating shaft 9 is connect by connector 2 with hollow shaft 3.For example, returning
Shaft 9 and connector 2 are keyed.
The present embodiment connect hollow shaft 3 with rotating shaft 9 by connector 2 by setting connector 2, and it is indirect and
Rotating shaft 9 connects, and is avoided that hollow shaft 3 is worn.In addition, since connector 2 and hollow shaft 3 pass through the side being detachably connected
Connector 2 is disassembled one new connector 2 of replacement, dismounting maintenance after connector 2 is worn by formula connection
It is convenient, reduce maintenance cost.
In a feasible technical solution, connector 2 and hollow shaft 3 are connect by bolt (not shown go out).
For example, connector 2 is flange shape connector, the flange flange end face of connector 2 against hollow shaft 3 end face and with
The end face of hollow shaft 3 is bolted, and the axle sleeve of connector 2 is nested in hollow shaft 3.
In another feasible technical solution, connector 2 and hollow shaft 3 are keyed.
For example, connector 2 is flange shape axle sleeve, connector 2 includes that axle sleeve and the flange being connected on the outside of axle sleeve one end are convex
Edge, flange flange are located at outside hollow shaft 3, and the end face of flange flange reclines the end face of hollow shaft 3, and axle sleeve is nested in hollow shaft 3
It is interior, and axle sleeve and hollow shaft 3 are keyed.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, for another example connector 2 is cylindrical, connector 2 is arranged in hollow shaft 3,
It is connected between connector 2 and hollow shaft 3 by columnar connecting key 10, one end of connecting key 10 has engaging lug 11, connector 2
Lateral wall be concavely provided with keyway, key that is corresponding with the keyway of connector 2 and being connected is offered on the side wall of hollow shaft 3
Hole, the keyhole of hollow shaft 3 are stepped hole, and connecting key 10 passes through the keyhole of hollow shaft 3, and protrudes into the keyway of connector 2, are connected
Ear 11 is connect with the step in keyhole by bolt 12, and dismounting is very convenient, and the top surface of connecting key 10 is outer not higher than hollow shaft 3
Wall, in order to avoid influence the installation of rotor 1.For the axial position for limiting connector 2, the both ends of connector 2 is made to distinguish contact one gear
Circle 13, retaining ring 13 are embedded in fixed in the inner sidewall of hollow shaft 3.
Further, rotating shaft 9 is connect with connector 2 by spline, and the centre bore of connector 2 is equipped with inner spline groove 4, revolution
The lateral wall of axis 9 is equipped with external splines slot.
As shown in Fig. 2, further, being respectively equipped with a bearing 5, hollow shaft between the both ends lateral wall and shell 7 of hollow shaft 3
3 are interference fitted (tight fit) with bearing 5, and shell 7 supports hollow shaft 3 by bearing 5, and hollow shaft 3 is set with being able to rotate by bearing 5
It sets on shell 7.
The utility model also proposes a kind of large excavator comprising above-mentioned hollow shaft motor direct-drive type swing mechanism.
Hollow shaft motor 8 in the utility model can directly drive the rotation of rotating shaft 9, no setting is required huge speed reducer
Structure, structure is simple, compact, noiseless, and 80% or more production, maintenance and use cost can be reduced for user.
Preferably, motor is low-speed high-torque motor, is more suitable for directly driving the rotation of rotating shaft 9, such as the big torsion of low speed
Torque motor is permanent magnet low-speed high torque motor, can also be other low-speed high-torque motors certainly.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent variations under the premise of not departing from the conceptions and principles of the utility model
With modification, the range of the utility model protection should belong to.And it should be noted that each component part of the utility model simultaneously
It is not limited only to above-mentioned overall applicability, each technical characteristic described in the specification of the utility model can select according to actual needs
One individually uses or selects the multinomial use that combines, and therefore, the utility model covers in the nature of things to be invented with this case
The related other combinations of point and concrete application.
Claims (10)
1. a kind of hollow shaft motor direct-drive type swing mechanism, which is characterized in that the hollow shaft motor direct-drive type swing mechanism packet
It includes:
Hollow shaft motor (8), including rotor (1), stator (6), shell (7) and hollow shaft (3), the stator (6) cover described
Rotor (1) outside, and is fixed in the shell (7), the rotor (1) cover the hollow shaft (3) outside, and with the hollow shaft
(3) it is fixedly connected；
Rotating shaft (9) is fixedly connected with the hollow shaft (3).
2. hollow shaft motor direct-drive type swing mechanism according to claim 1, which is characterized in that the hollow shaft motor
It (8) further include the connector (2) for being set to the hollow shaft (3) one end, the connector (2) and the hollow shaft (3) are detachable
Ground connection, the rotating shaft (9) are connect by the connector (2) with the hollow shaft (3).
3. hollow shaft motor direct-drive type swing mechanism according to claim 2, which is characterized in that the rotating shaft (9) with
Connector (2) key connection.
4. hollow shaft motor direct-drive type swing mechanism according to claim 2, which is characterized in that the connector (2) with
The hollow shaft (3) is bolted.
5. hollow shaft motor direct-drive type swing mechanism according to claim 2, which is characterized in that the connector (2) with
Hollow shaft (3) key connection.
6. hollow shaft motor direct-drive type swing mechanism according to claim 5, which is characterized in that the connector (2) is in
Cylindrical shape, the connector (2) are arranged in the hollow shaft (3), lead between the connector (2) and the hollow shaft (3)
Columnar connecting key (10) connection is crossed, one end of the connecting key (10) has engaging lug (11), the outside of the connector (2)
Wall is concavely provided with keyway, offers corresponding with the keyway of the connector (2) on the side wall of the hollow shaft (3) and is connected
Keyhole, the keyhole of the hollow shaft (3) is stepped hole, and the connecting key (10) passes through the keyhole of the hollow shaft (3), and stretches
In the keyway for entering the connector (2), the step in the keyhole of the engaging lug (11) and the hollow shaft (3) passes through bolt
(12) it connects.
7. hollow shaft motor direct-drive type swing mechanism according to claim 6, which is characterized in that the connector (2)
One retaining ring (13) of contact is distinguished at both ends, and the retaining ring (13) is embedded in the inner sidewall of the hollow shaft (3).
8. hollow shaft motor direct-drive type swing mechanism according to claim 5, which is characterized in that the connector (2) is
Flange shape axle sleeve, the connector (2) include axle sleeve and the flange flange that is connected on the outside of described axle sleeve one end, and the flange is convex
Edge is located at that the hollow shaft (3) is external, and the end face of the flange flange reclines the end faces of the hollow shaft (3), and the axle sleeve is embedding
It covers in the hollow shaft (3), the axle sleeve and the hollow shaft (3) are keyed.
9. hollow shaft motor direct-drive type swing mechanism according to claim 1, which is characterized in that the hollow shaft (3)
It is respectively equipped between both ends lateral wall and the shell (7) bearing (5), the hollow shaft (3) is matched with the bearing (5) interference
It closes.
10. a kind of large excavator, which is characterized in that the large excavator includes as described in any one of claim 1 to 9
Hollow shaft motor direct-drive type swing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153871.5U CN209620155U (en) | 2019-01-29 | 2019-01-29 | A kind of hollow shaft motor direct-drive type swing mechanism and large excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153871.5U CN209620155U (en) | 2019-01-29 | 2019-01-29 | A kind of hollow shaft motor direct-drive type swing mechanism and large excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209620155U true CN209620155U (en) | 2019-11-12 |
Family
ID=68452352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920153871.5U Active CN209620155U (en) | 2019-01-29 | 2019-01-29 | A kind of hollow shaft motor direct-drive type swing mechanism and large excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209620155U (en) |
-
2019
- 2019-01-29 CN CN201920153871.5U patent/CN209620155U/en active Active
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