CN105332713A - Tunneling machine and cutter assembly for same - Google Patents
Tunneling machine and cutter assembly for same Download PDFInfo
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- CN105332713A CN105332713A CN201510770551.0A CN201510770551A CN105332713A CN 105332713 A CN105332713 A CN 105332713A CN 201510770551 A CN201510770551 A CN 201510770551A CN 105332713 A CN105332713 A CN 105332713A
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- cutter head
- head assembly
- synchronous motor
- tunnel machine
- permagnetic synchronous
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Abstract
The invention discloses a cutter assembly for a tunneling machine. The cutter assembly for the tunneling machine comprises a cutter and a driving mechanism, wherein the driving mechanism is used for driving the cutter to rotate, and comprises a planetary gear; the planetary gear comprises an outer gear ring and a plurality of inner gears; the outer gear ring is connected with the cutter; the inner gears are meshed with the inner periphery of the outer gear ring; and each inner gear is driven to rotate by a corresponding permanent magnet synchronous motor which is directly connected with the inner gear. According to the cutter assembly for the tunneling machine, the permanent magnet synchronous motors are used for directly driving the planetary gears to rotate and then driving the cutter to rotate, a reduction box and a cooling system for cooling down the reduction box are omitted, economic cost and maintaining cost of the whole driving mechanism are reduced greatly, the structure is simplified, reliability of the whole device is greatly improved, shield space of the tunneling machine is saved, and the tunneling machine is convenient to repair.
Description
Technical field
The present invention relates to technical field of engineering machinery, especially relate to a kind of cutter head assembly for tunnel machine and there is its tunnel machine.
Background technology
Point out in correlation technique, the driving mechanism of the cutterhead on development machine equipment adopts variable-frequency motor (or hydraulic motor), reductor and planetary drive mechanism, variable-frequency motor (or hydraulic motor) is connected with reductor input by output shaft, output end of reducer is connected with planetary little gear ring and drive shaft is held, the deceleration link of this kind of structure is more, complex structure, efficiency of transmission is not high, and reductor cost is high, bulky, poor with motor matching, can choice less, reductor needs special cooling system and periodic maintenance maintenance work simultaneously.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention reside in and propose a kind of cutter head assembly for tunnel machine, the described cutter head assembly for tunnel machine has the advantage that structure is simple, reliability is high, cost is low.
The present invention also proposes a kind of tunnel machine, and described tunnel machine comprises as above for the cutter head assembly of tunnel machine.
The cutter head assembly for tunnel machine according to a first aspect of the present invention, comprising: cutterhead; With the driving mechanism for driving described cutterhead to rotate, described driving mechanism comprises planetary gear, described planetary gear comprises the external toothing be connected with described cutterhead and the multiple internal gears engaged with the inner circumferential of described external toothing, and each described internal gear is all driven by a permagnetic synchronous motor direct-connected with it and rotates.
According to the cutter head assembly for tunnel machine of the present invention, by utilizing permagnetic synchronous motor Direct driver planetary gear rotation, cutterhead is driven to rotate again, can avoid using after variable-frequency motor slowed down by reductor, be connected to drive cutterhead to rotate again with planetary gear, the cooling system saving reductor and reductor is cooled, greatly reduce financial cost and the maintaining cost of whole driving mechanism, simplify the structure simultaneously, the reliability of whole device is greatly improved, and saved the shield body space of development machine, be convenient to maintenance.
According to some embodiments of the present invention, each described permagnetic synchronous motor is equipped with the monitoring device for monitoring corresponding described permagnetic synchronous motor working state signal.
In some embodiments of the invention, described monitoring device is rotary transformer.
In some embodiments of the invention, described cutter head assembly comprises further: controller, described controller is connected with each described permagnetic synchronous motor with each described monitoring device respectively, controls corresponding described permagnetic synchronous motor work with the described signal detected according to each described monitoring device.
According to some embodiments of the present invention, the progression N of each described permagnetic synchronous motor meets: 12 grades≤N≤48 grade.
In some embodiments of the invention, the progression N of each described permagnetic synchronous motor is 36 grades, fundamental frequency is 30Hz.
According to some embodiments of the present invention, the gear ratio of each described internal gear and described external toothing is 1:15 or 1:16 or 1:17.
In some embodiments of the invention, described multiple internal gear is evenly spaced apart in the circumferential direction of described external toothing.
Tunnel machine according to a second aspect of the present invention, comprises the cutter head assembly for tunnel machine according to a first aspect of the present invention.
According to tunnel machine of the present invention, by arranging the cutter head assembly being used for tunnel machine, financial cost and the maintaining cost of whole tunnel machine can be reduced, and due to structure simplification, the reliability of whole tunnel machine can be made greatly to improve.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of the cutter head assembly for tunnel machine according to the embodiment of the present invention;
Fig. 2 is the planetary structural representation shown in Fig. 1.
Reference numeral:
Driving mechanism 1, planetary gear 11, external toothing 111, internal gear 112, permagnetic synchronous motor 12.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
The cutter head assembly for tunnel machine of embodiment is according to a first aspect of the present invention described below with reference to Fig. 1 and Fig. 2.
As depicted in figs. 1 and 2, the cutter head assembly for tunnel machine of embodiment according to a first aspect of the present invention, comprising: cutterhead (scheming not shown) and driving mechanism 1.
Particularly, driving mechanism 1 rotates for driving cutterhead, driving mechanism 1 comprises planetary gear 11, planetary gear 11 comprises the external toothing 111 be connected with cutterhead and the multiple internal gears 112 engaged with the inner circumferential of external toothing 111, and each internal gear 112 is all driven by a permagnetic synchronous motor 12 direct-connected with it and rotates.In other words, planetary gear 11 can drive cutterhead to rotate, the external toothing 111 of planetary gear 11 drives rotation jointly by multiple internal gear 112 engaged with it, and each internal gear 112 is all connected with a permagnetic synchronous motor 12, multiple permagnetic synchronous motor 12 can drive the internal gear 112 of corresponding connection to rotate, multiple internal gear 112 drives the external toothing 111 engaged with it to rotate again, and external toothing 111 is connected with cutterhead, movable knife disc can be with to rotate while external toothing 111 rotates.
It should be noted that, due to the characteristic of permagnetic synchronous motor 12, when lifting motor number of poles, power factor can't decline, and because power density is much larger than asynchronous machine, volume also can be well controlled, so apply permagnetic synchronous motor 12 on development machine, and the output speed of permagnetic synchronous motor 12 can be accomplished very low, moment of torsion can be accomplished very high, can avoid like this driving planetary gear 11 to be with movable knife disc to rotate by reductor.The characteristic of permagnetic synchronous motor 12 should be known by those skilled in the art, no longer describes in detail here.
Thus, can avoid using reductor to slow down, save the cooling system that reductor is cooled, greatly reduce financial cost and the maintaining cost of whole driving mechanism 1, simplify the structure simultaneously, the reliability of whole device is greatly improved, and has saved the shield body space of development machine, be convenient to maintenance.
The cutter head assembly for tunnel machine of embodiment according to a first aspect of the present invention, rotate by utilizing permagnetic synchronous motor 12 Direct driver planetary gear 11, cutterhead is driven to rotate again, can avoid using after variable-frequency motor slowed down by reductor, be connected with planetary gear 11 again to drive cutterhead to rotate, the cooling system saving reductor and reductor is cooled, greatly reduce financial cost and the maintaining cost of whole driving mechanism 1, simplify the structure simultaneously, the reliability of whole device is greatly improved, and saved the shield body space of development machine, be convenient to maintenance.
In some embodiments of the invention, each permagnetic synchronous motor 12 is equipped with the monitoring device for monitoring corresponding permagnetic synchronous motor 12 working state signal.Monitoring device can detect and feed back the signal such as rotating speed, position, torque on corresponding permagnetic synchronous motor 12, to realize the synchronism of each permagnetic synchronous motor 12 thus.Further, monitoring device can be rotary transformer, rotary transformer is a kind of fine angle, position, speed detector, be applicable to the rotary transformer occasion, particularly high temperature of all use rotary encoders, severe cold, humidity, at a high speed, the rotary encoder such as the high vibrations occasion that cannot normally work.Accurately can detect rotating speed, the position signals of permagnetic synchronous motor 12 thus.It should be noted that, the concrete structure of rotary transformer and rotary encoder and operating principle thereof should be well known to those skilled in the art, and no longer describe in detail here.
Alternatively, cutter head assembly comprises further: controller, and controller is connected with each permagnetic synchronous motor 12 with each monitoring device respectively, controls corresponding permagnetic synchronous motor 12 work with the signal detected according to each monitoring device.Permagnetic synchronous motor 12 can be made thus in full rate adjustable range to obtain excellent control characteristic, ensure that the synchronism between each permagnetic synchronous motor 12, improve the usefulness of whole drive system, the impact that when decreasing load changing, whole system is subject to, enhances the life-span of whole drive system.
In some embodiments of the invention, the progression N of each permagnetic synchronous motor 12 meets: 12 grades≤N≤48 grade.The rotation speed requirements of cutterhead to different operating face can be met thus, but also rotating speed can be prevented too low or too high and be unfavorable for the excavation of work plane.Further, the progression N of each permagnetic synchronous motor 12 is 36 grades, fundamental frequency is 30Hz.Not only can export a less rotating speed thus, but also the cost of permagnetic synchronous motor 12 can be reduced.Alternatively, each internal gear 112 is 1:15 or 1:16 or 1:17 with the gear ratio of external toothing 111.Thus, both can meet the speed ratio requirement of planetary gear 11, the requirement of shield body space can be met again.
In some embodiments of the invention, multiple internal gear 112 is evenly spaced apart in the circumferential direction of external toothing 111.The driving force that multiple internal gear 112 can be made thus to act on external toothing 111 is more even, makes the operation of planetary gear 11 more steady, thus improves the reliability of whole device.
The cutter head assembly for tunnel machine of a specific embodiment according to a first aspect of the present invention is briefly described below with reference to Fig. 1 and Fig. 2.
As depicted in figs. 1 and 2, the cutter head assembly for tunnel machine of embodiment according to a first aspect of the present invention, comprises cutterhead, driving mechanism 1 and controller.
Particularly, driving mechanism 1 comprises planetary gear 11, planetary gear 11 comprises an external toothing be connected with cutterhead 111 and two internal gears 112 engaged with external toothing 111, two internal gears 112 are spaced apart equably along the circumference of external toothing 111, namely the folder between two internal gears 112 is 180 °, and two internal gears 112 are connected with two permagnetic synchronous motors 12 respectively.Two permagnetic synchronous motors 12 drive the corresponding internal gear 112 connected to rotate respectively, and two internal gears 112 drive the external toothing 111 engaged with it to rotate, and then external toothing 111 is with movable knife disc to rotate, thus realizes the indirect driving of permagnetic synchronous motor 12 pairs of cutterheads.
Each permagnetic synchronous motor 12 is equipped with rotary transformer, rotary transformer can detect rotating speed, the position signals of corresponding motor, controller is connected with each motor and each rotary transformer respectively, and control corresponding permagnetic synchronous motor 12 according to the signal that each rotary transformer detects and work, thus realize the synchronism of each permagnetic synchronous motor 12.
The progression of permagnetic synchronous motor 12 is 36 grades, and fundamental frequency is 30Hz, and the internal gear 112 of planetary gear 11 is 1:15 with the gear ratio of external gear, below with reference to the advantage utilizing permagnetic synchronous motor 12 to drive of above numerical analysis cutter head assembly.
Can show that its specified output speed is 100rpm according to the sum of series fundamental frequency of permagnetic synchronous motor 12, because the gear ratio of planetary gear 11 is about 15:1, then the rotating speed of the output of external toothing 111 is 6.7rpm, and the rotating speed of cutterhead is 6.7rpm.And if employing asynchronous machine realizes, then due to the consideration of development machine shield body space and efficiency aspect, asynchronous machine is the highest can only select 6 or 8 pole motors, and the gear ratio of planetary gear 11 can not change on a large scale, so reductor must be increased to meet the requirement of development machine cutterhead for rotating speed and moment of torsion.And have employed the permagnetic synchronous motor 12 of the large torque of the slow-speed of revolution, the structure originally must first being undertaken slowing down by reductor is simplified, the structure of this cutter plate driver mechanism 1, save space and cost, and improve the reliable of whole system and stability.
The tunnel machine of embodiment comprises the cutter head assembly for tunnel machine according to a first aspect of the present invention according to a second aspect of the present invention, financial cost and the maintaining cost of whole tunnel machine can be reduced thus, and because structure simplifies, the reliability of whole tunnel machine can be made greatly to improve.
In some embodiments of the invention, tunnel machine is full face tunnel boring machine.Because full face tunnel boring machine cannot modularity, financial cost and maintenance cost are all higher, therefore adopt the cutter head assembly of permagnetic synchronous motor 12 Direct driver planetary gear 11 greatly can reduce financial cost and the maintenance cost of whole device, the reliability of whole device can also be improved simultaneously.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " interior ", " outward ", " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection, can also be communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this manual, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this manual or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. for a cutter head assembly for tunnel machine, it is characterized in that, comprising:
Cutterhead; With
For the driving mechanism driving described cutterhead to rotate, described driving mechanism comprises planetary gear, described planetary gear comprises the external toothing be connected with described cutterhead and the multiple internal gears engaged with the inner circumferential of described external toothing, and each described internal gear is all driven by a permagnetic synchronous motor direct-connected with it and rotates.
2. the cutter head assembly for tunnel machine according to claim 1, is characterized in that, each described permagnetic synchronous motor is equipped with the monitoring device for monitoring corresponding described permagnetic synchronous motor working state signal.
3. the cutter head assembly for tunnel machine according to claim 2, is characterized in that, described monitoring device is rotary transformer.
4. the cutter head assembly for tunnel machine according to claim 2, it is characterized in that, described cutter head assembly comprises further: controller, described controller is connected with each described permagnetic synchronous motor with each described monitoring device respectively, controls corresponding described permagnetic synchronous motor work with the described signal detected according to each described monitoring device.
5. the cutter head assembly for tunnel machine according to claim 1, is characterized in that, the progression N of each described permagnetic synchronous motor meets: 12 grades≤N≤48 grade.
6. the cutter head assembly for tunnel machine according to claim 5, is characterized in that, the progression N of each described permagnetic synchronous motor is 36 grades, fundamental frequency is 30Hz.
7. the cutter head assembly for tunnel machine according to claim 1, is characterized in that, the gear ratio of each described internal gear and described external toothing is 1:15 or 1:16 or 1:17.
8. the cutter head assembly for tunnel machine according to any one of claim 1-7, is characterized in that, described multiple internal gear is evenly spaced apart in the circumferential direction of described external toothing.
9. a tunnel machine, is characterized in that, comprises the cutter head assembly for tunnel machine according to any one of claim 1-8.
10. tunnel machine according to claim 9, is characterized in that, described tunnel machine is full face tunnel boring machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770551.0A CN105332713A (en) | 2015-11-12 | 2015-11-12 | Tunneling machine and cutter assembly for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770551.0A CN105332713A (en) | 2015-11-12 | 2015-11-12 | Tunneling machine and cutter assembly for same |
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| Publication Number | Publication Date |
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| CN105332713A true CN105332713A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510770551.0A Pending CN105332713A (en) | 2015-11-12 | 2015-11-12 | Tunneling machine and cutter assembly for same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199510A (en) * | 2018-01-31 | 2018-06-22 | 湖北环电磁装备工程技术有限公司 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
| CN108412508A (en) * | 2018-01-31 | 2018-08-17 | 湖北环电磁装备工程技术有限公司 | A kind of cutter head of shield machine mechanism that rimless combination type permanent-magnet linear synchronous motor directly drives |
| CN108643931A (en) * | 2018-04-25 | 2018-10-12 | 中国铁建重工集团有限公司 | A kind of development machine is backbreak knife control mechanism and development machine |
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| US4171848A (en) * | 1976-10-13 | 1979-10-23 | Hitachi, Ltd. | Control method and system for ensuring stable boring operation at working face during tunnelling with tunnel boring or shield machine |
| CN201747381U (en) * | 2010-09-10 | 2011-02-16 | 中铁隧道装备制造有限公司 | Compound TBM novel auxiliary steering device |
| CN202260942U (en) * | 2011-10-31 | 2012-05-30 | 郑州新大方电力能源有限公司 | Alternating current permanent magnet synchronous hub motor for electric automobile |
| CN103174432A (en) * | 2013-03-18 | 2013-06-26 | 中国铁建重工集团有限公司 | Cutting disc driving device used for tunnel engineering machinery |
| CN205117347U (en) * | 2015-11-12 | 2016-03-30 | 中国铁建重工集团有限公司 | A tunnel boring machine that is used for tunnel boring machine's cutter head assembly and has it |
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2015
- 2015-11-12 CN CN201510770551.0A patent/CN105332713A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171848A (en) * | 1976-10-13 | 1979-10-23 | Hitachi, Ltd. | Control method and system for ensuring stable boring operation at working face during tunnelling with tunnel boring or shield machine |
| CN201747381U (en) * | 2010-09-10 | 2011-02-16 | 中铁隧道装备制造有限公司 | Compound TBM novel auxiliary steering device |
| CN202260942U (en) * | 2011-10-31 | 2012-05-30 | 郑州新大方电力能源有限公司 | Alternating current permanent magnet synchronous hub motor for electric automobile |
| CN103174432A (en) * | 2013-03-18 | 2013-06-26 | 中国铁建重工集团有限公司 | Cutting disc driving device used for tunnel engineering machinery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199510A (en) * | 2018-01-31 | 2018-06-22 | 湖北环电磁装备工程技术有限公司 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
| CN108412508A (en) * | 2018-01-31 | 2018-08-17 | 湖北环电磁装备工程技术有限公司 | A kind of cutter head of shield machine mechanism that rimless combination type permanent-magnet linear synchronous motor directly drives |
| CN108643931A (en) * | 2018-04-25 | 2018-10-12 | 中国铁建重工集团有限公司 | A kind of development machine is backbreak knife control mechanism and development machine |
| CN108643931B (en) * | 2018-04-25 | 2024-04-09 | 中国铁建重工集团股份有限公司 | Super-cutter control mechanism of heading machine and heading machine |
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Application publication date: 20160217 |