CN201580872U - Tractor - Google Patents
Tractor Download PDFInfo
- Publication number
- CN201580872U CN201580872U CN2009202093895U CN200920209389U CN201580872U CN 201580872 U CN201580872 U CN 201580872U CN 2009202093895 U CN2009202093895 U CN 2009202093895U CN 200920209389 U CN200920209389 U CN 200920209389U CN 201580872 U CN201580872 U CN 201580872U
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- China
- Prior art keywords
- brake
- main shaft
- installation portion
- rotor
- brake equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a tractor, which comprises a stand, a stator, a rotor, a rotary frame, a main shaft, a driving rope pulley, a braking device and a brake disc, wherein the stand is provided with a stator mounting part for the stator, a main shaft supporting part for rotatablely supporting the main shaft, a braking device mounting part for the braking device and a cavity capable of accommodating the braking device, the brake disc and the braking device mounting part; the rotary frame is provided with a rotor mounting part for the rotor and a driving rope pulley mounting part for the driving rope pulley; the main shaft is fixedly connected with the rotary frame and at least partially extends into the cavity; the brake disc is fixedly connected with the part of the main shaft extending into the cavity so as to transfer a braking force to the main shaft; the braking device is movably connected with the braking device mounting part; and the stator and the rotor are arranged opposite to each other along the radial direction. The utility model has the characteristics of simple structure, small size, low cost, low noise and the like.
Description
Technical field
The utility model relates to a kind of towing machine.
Background technology
Existing towing machine is as the disclosed elevator traction machine of Chinese invention patent (notification number CN1141775C).The electromagnet of this towing machine and brake control lever are arranged on the outside of towing machine, and act on by brake control lever on the brake wheel of towing machine outer rotor and produce braking force, thus the braking towing machine.The deficiency of this invention is: 1) because the brake wheel and the traction sheave of towing machine are positioned at the same side, and disposed adjacent, brake area is very easy to be subjected to the grease influence of steel rope like this, thereby causes the friction coefficient of brake area to reduce the influence of normal the bringing on a disaster property of operation of this elevator; 2) because drg is arranged on the outside of towing machine, the noise of drg directly externally transmits, thereby causes the noise of towing machine to increase, and towing machine is used in machine-roomless lift and will directly be had influence on the riding quality of elevator like this; 3) for reduce noise usually be with the gap between friction lining and the brake wheel be provided with very little, like this when acting on the brake wheel because of brake control lever, because the opening time of two brakings can not be consistent, so may cause brake wheel to stressed direction distortion, thereby cause another brake control lever to contact with brake wheel, thereby make the friction disc wear of another brake control lever, reduce the service life of brake control lever, and bring vibration and noise may for the operation of elevator; Simultaneously in order to guarantee that brake wheel and brake control lever have enough rigidity need design enough strong brake control lever and brake wheel, to increase the cost of towing machine like this, and, increase the moment requirement of towing machine, thereby further increase the cost of towing machine because the inertia of brake wheel increases; 4) because brake control lever and electromagnet are arranged on the outside of towing machine, cause the oad of towing machine to become big on the one hand, the axial dimension that comprises the needs of brake wheel, the height that electromagnet needs, influence the outward appearance of towing machine, this towing machine can not be applied on the machine-roomless lift product substantially, causes the parts of towing machine to increase on the other hand, the processing capacity of parts increases, and the cost of towing machine increases; 5) be installed on the rotor owing to magnet steel, and brake surface also is positioned on the rotor, when so brake control lever produces braking force to brake wheel, to produce impact to magnet steel, such impact will directly have influence on being connected of magnet steel and rotor, thereby may cause magnet steel to come off from rotor, cause serious accident, operation brings and seriously influences to elevator; 6),, be the twice that end face (two brake surfaces are arranged) brake braking force requires so the requirement of braking force is big because brake surface is the outside face of brake wheel.
In order to solve the noise problem of traction machine brake as described above, make the designs simplification and the miniaturization of towing machine, Chinese invention patent (notification number CN100335400C) discloses a kind of towing machine.The brake equipment of towing machine is arranged on the inside of towing machine fixed frame, and the brake axle of brake equipment acts on the brake surface of rotor and produces braking force, the braking towing machine.This invention is arranged on drg the inside of towing machine fixed frame, brake equipment is closed in the fixed frame simultaneously, the noise transmission that reduces brake equipment like this is to the outside of towing machine, and brake surface and rope sheave be separated out, and brake surface can not be subjected to the influence of steel rope grease.The weak point of this invention is: 1) for reduce noise usually be with the gap between brake axle and the brake surface be provided with very little, like this when acting on the brake surface because of brake axle, because two braking action times can not be consistent, so may cause the rotor installation portion to stressed direction distortion, thereby cause another brake axle to contact with brake surface, thereby make the friction disc wear of another brake axle, reduce the service life of brake axle, and bring vibration and noise may for the operation of elevator; Simultaneously in order to guarantee that the enough rigidity of brake surface need design enough strong rotor installation portion, the gauge that is the rotor installation portion increases, to increase the cost of towing machine like this, and because the inertia increase of rotor installation portion, increase the moment requirement of towing machine, thereby further increase the cost of towing machine; 2) even in order to guarantee the gap between brake axle and the brake surface, the necessary fine limit work of brake surface, cost of processing increases like this; 3) because the friction lining of brake axle often has abrasive dust to produce, these abrasive dusts probably drop on the brake surface, thereby the friction force instability that may cause brake equipment, normal operation generation to elevator has a strong impact on, so need clear up these abrasive dusts termly, or by anti-dandruff device these abrasive dusts are handled, do the work capacity that will increase maintenance and maintenance like this, increase the use cost of towing machine simultaneously; 4) be oppositely arranged on the rotation support frame because of brake surface and rotor installation portion, so when brake axle produces braking force to brake surface, also produce simultaneously and impact to rotor, such impact will directly have influence on rotor with the rotation support frame the rotor installation portion between be connected, cause rotor to come off from the rotation support frame, thereby cause serious accident, operation brings and seriously influences to elevator; 5) because brake surface is the inner circumferential surface of rotor installation portion,, be the twice of end face (two brake surfaces are arranged) brake equipment required braking force, increase the size and the cost of brake equipment, influence the scantling of structure of towing machine simultaneously so the requirement of braking force is big.
The utility model content
The purpose of this utility model is the above-mentioned deficiency at prior art, and a kind of simple in structure, miniaturization, cost is low and noise is little towing machine are provided.
Towing machine of the present utility model comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc; Described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described main shaft to small part stretches into described chamber portion; Described brake disc is connected with the partial fixing that described main shaft stretches into chamber portion, and connecting brake disc by this can be with brake-force transmission to main shaft; Described brake equipment is connected movably with the brake equipment installation portion; Described stator and described rotor are oppositely arranged in radial direction.
Another towing machine of the present utility model, it comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc; Described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described main shaft to small part stretches into described chamber portion; The section axial that described brake disc and described main shaft stretch into chamber portion moves and is connected, and connecting brake disc by this can be with brake-force transmission to main shaft; Described stator and described rotor are oppositely arranged in radial direction.
Described chamber portion is positioned at the inside of described rotor installation portion to small part.
Described chamber portion is positioned at the inside of described stator installation portion at least.
Described rotor installation position is in the inside of described stator installation portion.
Described main shaft support portion to small part stretches into the inside that drives rope sheave.
Described chamber portion captives joint with the cover plate on being installed in described support, forms an osed top installing space.
Described brake equipment, brake equipment installation portion, brake disc are positioned at described installing space.
Described brake equipment to small part is positioned at described chamber portion.
Described brake disc is between described brake equipment and described brake equipment installation portion.
Adopt the towing machine of said structure, more existing towing machine has following characteristics: 1) brake surface of brake equipment is not on brake wheel or rotation framework, needn't design strong brake wheel of rigidity or rotating frame like this, therefore the thickness of the rotor installation portion of described rotation framework can attenuate, thereby reduce the weight of described rotation framework, cost-cutting, and owing to the inertia of rotor installation portion reduces, can reduce the moment requirement of towing machine, thereby further reduce the cost of towing machine; 2) described brake equipment is given main shaft by the braking brake disc with brake-force transmission, and glancing impact can not cause radial impact to described rotor like this, can not influence described rotor and produce any influence with being connected of described rotation framework, guarantees the safety of towing machine; 3) because described brake surface can not be subjected to the influence of brake strip abrasive dust, so braking force keeps stable; 4) described brake equipment is positioned at the inside of actuating device support, thus the noise of brake equipment can not transmit out substantially, thereby guarantee the quality of towing machine, the noise of towing machine is little; The oad of whole towing machine is little simultaneously, compact conformation; 5) described brake equipment has two brake strips, thereby can reduce the requirement of the braking force of brake equipment, reduces the cost of brake equipment, and the scantling of structure of brake equipment can not influence the structure design of towing machine simultaneously; 6) described brake equipment is connected movably with the brake equipment installation portion, so can not exist brake equipment to move when inconsistent, the braking maneuver of described brake equipment influences each other; 7) described driving rope sheave and brake surface are kept apart fully, and described brake surface can not be subjected to the grease influence of steel rope, can not be subjected to the influence to friction face of extraneous dust or air humidity simultaneously yet.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 a is the utility model first embodiment scheme drawing;
Fig. 1 b is that the A of Fig. 1 a is to view;
Fig. 1 c is that the B of Fig. 1 a is to view;
Fig. 2 a is the utility model second embodiment scheme drawing;
Fig. 2 b is that the A of Fig. 2 a is to view;
Fig. 2 c is that the B of Fig. 2 a is to view;
The specific embodiment
First kind of embodiment of the utility model as shown in Figure 1a, Fig. 1 b be the A of Fig. 1 a to view, Fig. 1 c is that the B of Fig. 1 a is to view; Towing machine comprises driving rope sheave 1, rotation framework 2, rotor 3, support 4, stator 5, main shaft 19, brake disc 8 and brake equipment, and brake equipment comprises secured core 10, mobile armature 16, magnet coil 11, spring 12, installation shaft 15.Described support 4 comprises stator installation portion 4a, the 4b of main shaft support portion, and brake equipment installation portion 4c can hold the 4d of chamber portion of described brake equipment, described brake disc 8, described brake equipment installation portion 4c.Rotation framework 2 comprises rotor installation portion 2a, drives rope sheave installation portion 2b, and main shaft 19 is fixed together with rotation framework 2.Described main shaft 19 is connected with the 4b of main shaft support portion with bearing 7 rotatably by bearing 6.Described brake disc 8 captives joint 21 with described main shaft 19, and connecting 21 brake discs 8 by this can be delivered to described main shaft 19 with the drag friction power that brake equipment produces.
As towing machine as described in Fig. 1 a, support 4 is permanently connected stator 5 together by stator installation portion 4a, and by the 4b of main shaft support portion and two bearings 6, bearing 7, support 4 links together rotatably with main shaft 19.The 4d of chamber portion of support 4 is provided with brake equipment installation portion 4c.The secured core 10 of brake equipment, mobile armature 16, magnet coil 11, installation shaft 15 and brake disc 8 are arranged in the 4d of chamber portion of support 4.Certainly secured core 10, mobile armature 16, magnet coil 11, installation shaft 15 and the brake disc 8 of brake equipment also can partly be arranged in the 4d of chamber portion of support 4.The 4d of chamber portion forms an osed top installing space by support cover plate 18, and the secured core 10 of brake equipment, mobile armature 16, magnet coil 11, installation shaft 15 and brake disc 8 are positioned at described installing space.The described chamber 4d of portion is positioned at the inside of described stator installation portion 4a, and the described chamber 4d of portion partly is positioned at the inside of described rotor 3.
As rotation framework 2 as described in Fig. 1 a by rotor installation portion 2a and as described in rotor 3 be permanently connected together, captive joint with described driving rope sheave 1 by driving rope sheave installation portion 2b.Main shaft 19 is permanently connected with described rotation framework 2, and stretches into to small part in the 4d of chamber portion of support 4.Main shaft 19 stretches into the end of the 4d of chamber portion, is connected with coder axle 13, and coder 14 is connected rotationally with coder axle 13.Described rotor 3 and described stator 5 are oppositely arranged in radial direction.The support 4 of described towing machine is provided with a shrouding 17, by shrouding 17 stator 5 and rotor 3 is enclosed in the space.Stator 5 and rotor 3 can not be subjected to the influence of external environment condition like this.The described main shaft support 4b of portion partly stretches into the inside that drives rope sheave 1.Described rotor installation portion 2a is positioned at the inside of stator installation portion 4a.Certainly stator installation portion 4a also can be designed to be positioned at the inside of rotor installation portion 2a.In order to simplify the number of parts of towing machine, drive rope sheave 1, main shaft 9 and 2 integrated designs of rotation framework.
Secured core 10 as brake equipment as described in Fig. 1 a is connected with brake equipment installation portion 4c movably by two installation shaft 15.Mobile armature 16 is connected movably with two installation shaft 15.Brake disc 8 is between brake equipment and brake equipment installation portion 4c.Brake disc 8 both ends of the surface have friction lining 9 respectively.Brake disc 8 is connected with the partial fixing that main shaft 19 stretches into the 4d of chamber portion.The utility model towing machine has two brake equipments.Two brake equipment floor plan.Coder 14 is arranged on the midway location of two brake equipments.The mobile armature 16 of brake equipment has brake surface 16a, and secured core 10 has brake surface 10a.Mobile armature 16 is positioned at the inside of secured core 10.
Has the said structure towing machine, its structure is very simple, safe and reliable, described support 4 has rotary supporting part 4b, the brake equipment installation portion 4c of stator installation portion 4a, main shaft 19, can hold the 4d of chamber portion of described brake equipment, described brake disc 8, described brake equipment installation portion 4c; Described rotation framework 2 has the rope sheave of driving installation portion 2b, rotor installation portion 2a; Described brake surface 10a and 16a and driving rope sheave 1 are kept apart fully.The component part of towing machine is few, simple in structure so on the one hand; On the other hand owing to have the 4d of chamber portion, hold brake equipment, brake disc 8, brake equipment installation portion 4c, brake equipment is positioned at the inside of cavity 4d fully like this, or brake equipment partly is positioned at the inside of cavity 4d, support cover plate 18 forms an osed top installing space with the 4d of chamber portion simultaneously, so the brake noise of the utility model towing machine can not transmitted out substantially, described brake surface 10a and 16a can not be subjected to the influence of steel rope grease, also can not be subjected to simultaneously the influence of external environment, humidity of dust and air etc. for example, thereby the stay in grade that guarantees towing machine is reliable, the noise of towing machine is little, oad is little, especially axial dimension can do little, compact conformation.Littler for what the axial dimension of towing machine can be done, the described chamber 4d of portion is positioned at the inside of described rotor installation portion 2a to small part, is positioned at the inside of stator installation portion 4a simultaneously at least; The described in addition main shaft support 4b of portion stretches into the inside that drives rope sheave 1 to small part.The 4b of main shaft support portion stretches into the inside that drives rope sheave 1 to small part, also can be so that the length of the cantilever support of main shaft 19 is short, thus can reduce the requirement of strength of main shaft 19.
As shown in Figure 1a as can be known, the brake surface 10a and the 16a of brake equipment, with support 4 be different structure, whole like this towing machine is simple in structure, can save the supporting construction of brake surface 10a and 16a, can save cost.Because brake surface 10a and 16a are positioned on the brake equipment fully, so do not need rotor installation portion 2a is had the requirement of any strength and stiffness, the thickness of rotor installation portion 2a can be reduced like this, thereby reduce rotor installation portion 2a and towing machine cost, and owing to the inertia of rotor installation portion 2a reduces, can reduce the moment requirement of towing machine, thereby further reduce the cost of towing machine.Two brake equipment horizontal distribution of described towing machine, brake equipment will make full use of radial space and the axial space of cavity 4d like this, guarantee brake equipment substantially to the scantling of structure of support 4 without any influence.Because of the brake surface 10a and the 16a of two brake equipments is complete independence, so the braking maneuver of two brake equipments can not influence each other, can not exist brake equipment to move when inconsistent, the braking maneuver of described brake equipment influences each other.Described brake disc 8 is between brake equipment and brake equipment installation portion 4c, simultaneously between brake surface 10a and 16a, have two brake strips 9, the requirement of brake equipment braking force can reduce half like this, thereby the size of brake equipment can reduce, cost can reduce simultaneously, so the structure design of towing machine is freer.Because it is described brake surface 10a and 16a can not adhere to the abrasive dust of brake strip 9, stable thereby braking force keeps.Braking force is to act on the brake equipment in addition, by brake equipment with brake-force transmission to support 4, braking force is by braking brake disc 8 simultaneously, brake-force transmission is given on the main shaft 19, be delivered to again and drive on the rope sheave 1, glancing impact can not cause radial impact to described rotor 3 like this, can not influence described rotor 3 and produce any influence with being connected of described rotation framework 2, guarantees the safety of towing machine.
Second kind of embodiment of the utility model shown in Fig. 2 a, Fig. 2 b be the A of Fig. 2 a to view, Fig. 2 c is that the B of Fig. 2 a is to view.Be that with first kind of embodiment difference of the utility model secured core 10 has friction lining 9b, mobile armature 16 has friction lining 9a, and brake disc 8 has two brake surface 8a and 8b.The benefit of doing like this be the material of friction lining can do littler, thereby reduce the cost of friction lining.
Certainly, in the embodiment shown in Fig. 1 a and Fig. 2 a, the secured core 10 of brake equipment can be captiveed joint with two installation shaft 15, and brake disc 8 can be connected with main shaft 19 with moving axially, so also forms towing machine protection scheme of the present utility model.
Claims (10)
1. towing machine, it comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc, it is characterized in that: described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described main shaft to small part stretches into described chamber portion; Described brake disc is connected with the partial fixing that described main shaft stretches into chamber portion, and connecting brake disc by this can be with brake-force transmission to main shaft; Described brake equipment is connected movably with the brake equipment installation portion; Described stator and described rotor are oppositely arranged in radial direction.
2. towing machine, it comprises support, stator, rotor, rotation framework, main shaft, driving rope sheave, brake equipment and brake disc, it is characterized in that: described support has the stator installation portion of described stator, has the main shaft support portion that described main axis rotation supports, brake equipment installation portion with described brake equipment has the chamber portion that can hold described brake equipment, described brake disc, described brake equipment installation portion; Described rotation framework has the rotor installation portion of described rotor, has the driving rope sheave installation portion of described driving rope sheave; Described main shaft is captiveed joint with described rotation framework; Described main shaft to small part stretches into described chamber portion; The section axial that described brake disc and described main shaft stretch into chamber portion moves and is connected, and connecting brake disc by this can be with brake-force transmission to main shaft; Described stator and described rotor are oppositely arranged in radial direction.
3. towing machine as claimed in claim 1 or 2 is characterized in that: described chamber portion is positioned at the inside of described rotor installation portion to small part.
4. towing machine as claimed in claim 1 or 2 is characterized in that: described chamber portion is positioned at the inside of described stator installation portion at least.
5. towing machine as claimed in claim 1 or 2 is characterized in that: described rotor installation position is in the inside of described stator installation portion.
6. towing machine as claimed in claim 1 or 2 is characterized in that: described main shaft support portion to small part stretches into the inside that drives rope sheave.
7. towing machine as claimed in claim 1 or 2 is characterized in that: described chamber portion captives joint with the cover plate on being installed in described support, forms an osed top installing space.
8. towing machine as claimed in claim 7 is characterized in that: described brake equipment, brake equipment installation portion, brake disc are positioned at described installing space.
9. towing machine as claimed in claim 1 or 2 is characterized in that: described brake equipment to small part is positioned at described chamber portion.
10. as arbitrary described towing machine in the claim 1,2,8, it is characterized in that: described brake disc is between described brake equipment and described brake equipment installation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202093895U CN201580872U (en) | 2009-09-08 | 2009-09-08 | Tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202093895U CN201580872U (en) | 2009-09-08 | 2009-09-08 | Tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201580872U true CN201580872U (en) | 2010-09-15 |
Family
ID=42722869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202093895U Expired - Lifetime CN201580872U (en) | 2009-09-08 | 2009-09-08 | Tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201580872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955114B (en) * | 2009-07-16 | 2013-02-13 | 包文丽 | Tractor |
| CN105340158A (en) * | 2013-06-27 | 2016-02-17 | 三菱电机株式会社 | Elevator hoist |
-
2009
- 2009-09-08 CN CN2009202093895U patent/CN201580872U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955114B (en) * | 2009-07-16 | 2013-02-13 | 包文丽 | Tractor |
| CN105340158A (en) * | 2013-06-27 | 2016-02-17 | 三菱电机株式会社 | Elevator hoist |
| CN105340158B (en) * | 2013-06-27 | 2017-10-20 | 三菱电机株式会社 | Elevator hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100915 Effective date of abandoning: 20090908 |
|
| RGAV | Abandon patent right to avoid regrant |