CN202220061U - Slewing drive device and engineering machinery with same - Google Patents
Slewing drive device and engineering machinery with same Download PDFInfo
- Publication number
- CN202220061U CN202220061U CN2011203412861U CN201120341286U CN202220061U CN 202220061 U CN202220061 U CN 202220061U CN 2011203412861 U CN2011203412861 U CN 2011203412861U CN 201120341286 U CN201120341286 U CN 201120341286U CN 202220061 U CN202220061 U CN 202220061U
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- braking
- revolving
- driving
- output shaft
- slewing
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Abstract
The utility model discloses a slewing drive device and engineering machinery with the slewing drive device. The slewing drive device comprises power equipment, a speed reducer and a slewing bearing which are connected with one another sequentially; an output shaft of the speed reducer is provide with a slewing brake; and the slewing brake comprises a braking connection member and a braking friction member, wherein the braking connection member and the output shaft rotate coaxially, and the braking friction member is arranged oppositely to a friction art of the braking connection member. The utility model also discloses the engineering machinery with the slewing drive device. When a slewing mechanism of the engineering machinery needs to be braked, the braking friction member is operated to be in slow contact with the braking connection member, and friction is further given to the output shaft of the speed reducer, so that the rotation speed of the shaft is lowered gradually until the rotating stops, so as to achieve the braking purpose. The slewing drive device can reduce the impact force generated by the slewing mechanism in the braking process, reduce the damage on other mechanisms in the engineering machinery, prolong the service life of the mechanism, improve the accompanying vibration phenomenon in the braking process and reduce the control difficulty of the slewing position, and can be used for reducing the speed of the slewing mechanism.
Description
Technical field
The utility model relates to technical field of engineering machinery, the device for revolving and driving of the impulsive force in particularly a kind of braking procedure that reduces swing type mechanism.The utility model also relates to a kind of construction machinery and equipment with this device for revolving and driving.
Background technology
In construction machinery and equipments such as hoisting crane or excavating machine, swing type mechanism all is installed, to realize carrying out operation on construction machinery and equipment arbitrarily angled in horizontal surface.Swing type mechanism in the hoisting crane then is a parallel motion of realizing article through the revolution of jib, in the working process of hoisting crane, plays crucial effect.Swing type mechanism needs device for revolving and driving driving work usually.
Referring to Fig. 1, Fig. 1 is the structural representation of a kind of representative type device for revolving and driving in the prior art.
As shown in Figure 1, this device for revolving and driving comprises power plant 3, reductor 2 and pivoting support 1.Power plant 3 and reductor 2 are connected through bolt, and reductor 2 is fixed with the outer ring of pivoting support 1, and the inner ring of pivoting support 1 is an internally toothed annulus, and the internal ring gear of the end of the output shaft of reductor 2 and pivoting support 1 meshes.Simultaneously, the inner ring of pivoting support 1 is fixed in turn table, thereby realizes the rotation of turn table.Above-mentioned power plant 3 can be motor or HM Hydraulic Motor.
In the device for revolving and driving of said structure, be provided with drg in the reductor 2, this drg is installed on the input shaft of reductor 2, can be used for the stopping brake of hoisting crane.Through inner structure the input shaft of reductor 2 is held tightly during this drg work, thus the rotation of inhibition swing type mechanism.
Use above-mentioned drg glancing impact; Because putting on the resistance of the input shaft in the reductor 2, drg sharply rises in the short period of time; This will increase the impulsive force in the braking procedure inevitably; Other mechanisms cause damage to the construction machinery and equipment in-to-in, have a strong impact on the service life of these mechanisms.Simultaneously, be attended by more significantly vibration in the braking procedure, will cause the difficult control in revolution location,
In addition, in the working process of hoisting crane, often need slowly to reduce the velocity of rotation of swing type mechanism.Obviously, difficult this purpose that realizes of above-mentioned drg.Therefore, the reduction of speed of crane rotation mechanism can only rely on the HM Hydraulic Motor back pressure at present, suppresses the revolution force of inertia, and swing type mechanism is slowed down.And for the situation that adopts motor as power plant, the reduction of speed of swing type mechanism then is the difficult problem that realizes.
In view of this, the swing type mechanism that how to reduce construction machinery and equipment has become the technical barrier that those skilled in the art need to be resolved hurrily at the impulsive force that glancing impact produces.
The utility model content
First purpose of the utility model provides a kind of device for revolving and driving, and this device has reduced the impulsive force of the swing type mechanism of construction machinery and equipment in the glancing impact generation.Another purpose of the utility model provides a kind of construction machinery and equipment with above-mentioned device for revolving and driving.
In order to realize above-mentioned first purpose, the utility model provides following technical scheme:
A kind of device for revolving and driving; Comprise bonded assembly power plant, reductor and pivoting support successively; Also comprise the trainstop on the output shaft that is arranged at said reductor; Said trainstop comprises braking attaching parts and drag friction part, said braking attaching parts and said output shaft coaxial rotation, and the friction part of said drag friction part and said braking attaching parts is provided with in opposite directions.
Preferably, said braking attaching parts is the coaxial brake disc that is fixed in said output shaft, and said drag friction part is the brake plate that is arranged at said brake disc outer rim.
Preferably, said braking attaching parts is the coaxial brake wheel that is fixed in said output shaft, and said drag friction part is to be arranged at the inboard slipper of said brake wheel.
Preferably, also comprise strut member, said output shaft through said supports support on the support of said reductor.
Preferably, said strut member comprises first strut member and second strut member, and said first strut member and said second strut member are arranged at the both sides of said braking attaching parts respectively.
Preferably, said strut member is copper sheathing or bearing.
Preferably, said power plant is HM Hydraulic Motor or motor.
In technique scheme, the device for revolving and driving that the utility model provides comprises power plant, reductor, pivoting support and is arranged at the trainstop on the output shaft of reductor that trainstop comprises braking attaching parts and drag friction part.Power plant is connected through bolt with reductor; The outer ring of reductor and pivoting support is fixed; The output shaft of reductor and the engagement of the internal ring gear of pivoting support, braking attaching parts and output shaft coaxial rotation, the drag friction part is arranged at the friction part of braking attaching parts in opposite directions.
The reductor that is driven by power plant is with certain rotational speed, also will rotate with corresponding rotating speeds with the braking attaching parts of the output shaft coaxial rotation of reductor.When the needs glancing impact, operation drag friction part makes it slowly contact with the braking attaching parts, and then the output shaft of reductor is applied certain friction drag, and its rotating speed is reduced gradually, stops operating until it, realizes the purpose of brake rotary mechanism.
Can know from foregoing description; This device for revolving and driving adopts friction braking; The rotation of the friction force inhibition speed reducer output shaft that utilizes braking attaching parts and drag friction part to contact to produce; The friction drag in-service time that puts on the speed reducer output shaft is longer, can guarantee the slow reduction of speed of swing type mechanism, until stopping.Obviously, this structure has reduced swing type mechanism at the impulsive force that glancing impact produced, and has reduced the infringement to other mechanisms of construction machinery and equipment in-to-in, and then has prolonged the service life of these mechanisms.Simultaneously, the chatter phenomena of following in the above-mentioned braking procedure has also obtained improvement to a certain degree, has reduced the control difficulty of revolution location then.
On the other hand, the trainstop in this device for revolving and driving can be used for the reduction of speed of swing type mechanism, when speed is reduced to preset requirement, can operates trainstop it is quit work.Aforesaid operations realizes being easier to, reliably.
In order to realize above-mentioned second purpose; The utility model also provides a kind of construction machinery and equipment with above-mentioned device for revolving and driving; Comprise turn table and device for revolving and driving; Turn table is connected with pivoting support in the device for revolving and driving, and this device for revolving and driving is any above-mentioned device for revolving and driving.Because this device for revolving and driving has above-mentioned technique effect, the construction machinery and equipment with this device for revolving and driving also should have the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of a kind of representative type device for revolving and driving in the prior art;
The structural representation of a kind of specific embodiment of the device for revolving and driving that Fig. 2 provides for the utility model.
Wherein, among Fig. 1, Fig. 2:
The specific embodiment
The core of the utility model provides a kind of device for revolving and driving; This device has reduced the impulsive force of the swing type mechanism of construction machinery and equipment in the glancing impact generation; Reduced infringement, prolonged the service life of the mechanism in the construction machinery and equipment, improved the chatter phenomena of following in the braking procedure other mechanisms of construction machinery and equipment in-to-in; Reduce the control difficulty of revolution location, and can be used for the reduction of speed of swing type mechanism.Another core of the utility model provides a kind of construction machinery and equipment with above-mentioned device for revolving and driving.
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to introduce in detail below in conjunction with the accompanying drawing and the specific embodiment.
Referring to Fig. 2, the structural representation of a kind of specific embodiment of the device for revolving and driving that Fig. 2 provides for the utility model.
As shown in Figure 2; In a kind of specific embodiment; The device for revolving and driving that the utility model provides comprises power plant 3, reductor 2 and pivoting support 1, and power plant 3 and reductor 2 are connected through bolt, and the outer ring of pivoting support 1 and reductor 2 are fixing; The output shaft 21 teeth engagement of inner ring and reductor 2 is provided with trainstop 22 in the reductor 2.The technical scheme that the utility model provided is with output shaft 21 lengthenings of reductor 2, and trainstop 22 then is arranged at this process and adds on the output shaft 21 of long process.Trainstop 22 comprises brake disc 221 and brake plate 222, and wherein, brake disc 221 uses as the braking attaching parts of trainstop 22, is appreciated that to be friction media, and it is coaxial fixing with output shaft 21, both coaxial rotation; Brake plate 222 uses as the drag friction part of trainstop 22, is arranged at the outer rim of brake plate 222 in opposite directions.
During above-mentioned device for revolving and driving normal operation, the axle in power plant 3 drive speed reducer 2 rotates, and the inner ring that drives pivoting support 1 rotates, thereby realizes turn table 4 rotations of captiveing joint with the inner ring of pivoting support 1, turns round operation.When swing type mechanism needs glancing impact, operate brake plate 222 its friction part with brake disc 221 is contacted, produce certain friction drag; Slowly reduce the rotating speed of brake disc 221; And then the rotating speed of reduction output shaft 21, stop operating until output shaft 21, accomplish the braking of swing type mechanism.Further, can brake plate 222 be set to two, and be arranged at the both sides up and down of brake disc 221 respectively, to increase the braking force of trainstop 22.
Can know by foregoing description; Than prior art; This device for revolving and driving adopts friction braking, and the friction force that utilizes brake disc 221 and brake plate 222 to contact to produce suppresses the rotation of the output shaft 21 of reductor 2, and the friction drag in-service time that puts on the output shaft 21 is longer; Can guarantee the slow reposefully reduction of speed of swing type mechanism, until stopping.Obviously, this structure has reduced swing type mechanism at the impulsive force that glancing impact produced, and has reduced the infringement to other mechanisms of construction machinery and equipment in-to-in, and then has prolonged the service life of these mechanisms.Simultaneously, the chatter phenomena of following in the above-mentioned braking procedure has also obtained improvement to a certain degree, has reduced the control difficulty of revolution location then.
On the other hand, the trainstop 22 in this device for revolving and driving can be used for the reduction of speed of swing type mechanism, when speed slowly is reduced to preset requirement; Can operate trainstop 22; Brake disc 221 is separated with brake plate 222, cancel friction drag, make swing type mechanism under this speed, keep operation.Obviously, aforesaid operations has more easily been realized the reduction of speed of swing type mechanism, and operation is comparatively reliable.
In specific embodiments, the braking attaching parts also can be brake wheel, and the drag friction part then can be slipper.Brake wheel is the coaxial circular configuration that is fixed in output shaft 21, and slipper is to be arranged at the inboard arcuate structure of being processed by the higher material of damping coefficient of brake wheel.The operation slipper outwards opens it and contacts with curved of brake wheel, and then output shaft 21 is produced friction drag, realizes the purpose of braking.Than the brake mode that brake disc 221 and brake plate 222 combine, the insensitivity of said structure and thermal diffusivity are all relatively poor, therefore do not advise using said structure, but this structure also should be in the protection domains of the utility model.
In the practical implementation process; The distance of brake disc 221 and brake plate 222, brake wheel and slipper; And the quantity of brake plate 222 and slipper all can do corresponding adjustment according to the type of construction machinery and equipment, thereby the stopping distance and the braking time of control swing type mechanism reach braking effect preferably.
In further embodiment,, should not be in vacant state, so can in this device for revolving and driving, strut member be set because output shaft 21 has made to add long process.Reductor 2 set inside are useful on the support 24 that supports parts, and output shaft 21 can be through supports support on support 24.Particularly, strut member can cooperate with the rear surface of output shaft 21, thereby improves the working strength of output shaft 21.And strut member has been avoided the direct contact of output shaft 21 with support 24, has guaranteed the service life of output shaft 21.Strut member also can play lubricating effect in the rotation process of output shaft 21 under its surface accuracy numerical value condition with higher.
During practical implementation, strut member can be copper sheathing 23, the inside face of copper sheathing 23 and output shaft 21 free-running fits, and outside face cooperates with support 24.Copper sheathing 23 is simple in structure, and cost is lower, and relatively large with the area of contact of output shaft 21, support effect is more excellent.Strut member also can adopt bearing, and bearing cone and output shaft 21 closely cooperate, and outer ring and support 24 closely cooperate.Bearing can guarantee that output shaft 21 and support 24 strictly relatively rotate.But in view of bearing is a gauge member, its size will receive the restriction of factors such as structure and the installation requirement thereof of swing type mechanism, therefore need to select according to concrete operating mode the structure of strut member.
In preferred version, strut member can specifically comprise first strut member and second strut member, and both are arranged at the both sides of braking attaching parts respectively.First strut member and the second strut member combined action both can make the working strength of output shaft 21 higher, also can prolong the work life of strut member.Simultaneously, the lubricant effect to output shaft 21 is better.
In the specific embodiments, power plant 3 can be HM Hydraulic Motor or motor.Advantages such as HM Hydraulic Motor has that volume is little, in light weight, simple in structure, good manufacturability, insensitive, shock-resistant and inertia is little to the pollution of fluid.The power range that motor provided is big, use and control more convenient, work efficiency is higher, noise is less.Concrete confirm according to conditions such as the use occasion of construction machinery and equipment and job requirements when selecting power plant 3.
The construction machinery and equipment that the utility model provides comprises turn table 4 and device for revolving and driving, and turn table 4 is connected with pivoting support 1 in the device for revolving and driving, and this device for revolving and driving is above-mentioned any device for revolving and driving.Because this device for revolving and driving has above-mentioned technique effect, the construction machinery and equipment with this device for revolving and driving also should have the corresponding techniques effect, no longer describes in detail here.
More than device for revolving and driving and applied construction machinery and equipment thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. device for revolving and driving; Comprise bonded assembly power plant (3), reductor (2) and pivoting support (1) successively; It is characterized in that, also comprise the trainstop (22) on the output shaft (21) that is arranged at said reductor (2), said trainstop (22) comprises braking attaching parts and drag friction part; Said braking attaching parts and said output shaft (21) coaxial rotation, the friction part of said drag friction part and said braking attaching parts is provided with in opposite directions.
2. according to the described device for revolving and driving of claim 1, it is characterized in that said braking attaching parts is the coaxial brake disc (221) that is fixed in said output shaft (21), said drag friction part is for being arranged at the brake plate (222) of said brake disc (221) outer rim.
3. according to the described device for revolving and driving of claim 1, it is characterized in that said braking attaching parts is the coaxial brake wheel that is fixed in said output shaft (21), said drag friction part is to be arranged at the inboard slipper of said brake wheel.
4. according to the described device for revolving and driving of claim 1, it is characterized in that, also comprise strut member, said output shaft (21) through said supports support on the support (24) of said reductor (2).
5. according to the described device for revolving and driving of claim 4, it is characterized in that said strut member comprises first strut member and second strut member, said first strut member and said second strut member are arranged at the both sides of said braking attaching parts respectively.
6. according to the described device for revolving and driving of claim 4, it is characterized in that said strut member is copper sheathing (23) or bearing.
7. according to each described device for revolving and driving of claim 1-6, it is characterized in that said power plant (3) is HM Hydraulic Motor or motor.
8. construction machinery and equipment; Comprise turn table (4) and device for revolving and driving; Said turn table (4) is connected with said pivoting support (1) in the said device for revolving and driving, it is characterized in that said device for revolving and driving is each described device for revolving and driving of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203412861U CN202220061U (en) | 2011-09-13 | 2011-09-13 | Slewing drive device and engineering machinery with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203412861U CN202220061U (en) | 2011-09-13 | 2011-09-13 | Slewing drive device and engineering machinery with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220061U true CN202220061U (en) | 2012-05-16 |
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ID=46042090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203412861U Expired - Fee Related CN202220061U (en) | 2011-09-13 | 2011-09-13 | Slewing drive device and engineering machinery with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220061U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923576A (en) * | 2012-10-26 | 2013-02-13 | 贵州航天特种车有限责任公司 | High and low-speed rotary device of double direct current motors |
| CN103381998A (en) * | 2013-07-16 | 2013-11-06 | 南通大力神建筑机械有限公司 | Novel tower crane |
| CN104074223A (en) * | 2013-03-29 | 2014-10-01 | 住友重机械工业株式会社 | Shovel |
| CN105156518A (en) * | 2015-08-27 | 2015-12-16 | 湖南三一石油科技有限公司 | Engineering machine and rotation braking system thereof |
| CN103115136B (en) * | 2013-03-06 | 2016-01-20 | 徐州科源液压股份有限公司 | Rotary reducer |
| CN105584493A (en) * | 2015-08-04 | 2016-05-18 | 金鹰重型工程机械有限公司 | Rail tunnel detecting operating vehicle |
| WO2022099802A1 (en) * | 2020-11-12 | 2022-05-19 | 中铁工程机械研究设计院有限公司 | Rotary driving mechanism and construction device |
| CN114922923A (en) * | 2022-05-13 | 2022-08-19 | 中联恒通机械有限公司 | Slewing mechanism and control method |
-
2011
- 2011-09-13 CN CN2011203412861U patent/CN202220061U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923576A (en) * | 2012-10-26 | 2013-02-13 | 贵州航天特种车有限责任公司 | High and low-speed rotary device of double direct current motors |
| CN102923576B (en) * | 2012-10-26 | 2015-04-22 | 贵州航天特种车有限责任公司 | High and low-speed rotary device of double direct current motors |
| CN103115136B (en) * | 2013-03-06 | 2016-01-20 | 徐州科源液压股份有限公司 | Rotary reducer |
| CN104074223A (en) * | 2013-03-29 | 2014-10-01 | 住友重机械工业株式会社 | Shovel |
| CN104074223B (en) * | 2013-03-29 | 2016-10-05 | 住友重机械工业株式会社 | Excavator |
| CN103381998A (en) * | 2013-07-16 | 2013-11-06 | 南通大力神建筑机械有限公司 | Novel tower crane |
| CN105584493A (en) * | 2015-08-04 | 2016-05-18 | 金鹰重型工程机械有限公司 | Rail tunnel detecting operating vehicle |
| CN105156518A (en) * | 2015-08-27 | 2015-12-16 | 湖南三一石油科技有限公司 | Engineering machine and rotation braking system thereof |
| WO2022099802A1 (en) * | 2020-11-12 | 2022-05-19 | 中铁工程机械研究设计院有限公司 | Rotary driving mechanism and construction device |
| CN114922923A (en) * | 2022-05-13 | 2022-08-19 | 中联恒通机械有限公司 | Slewing mechanism and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20150913 |
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| EXPY | Termination of patent right or utility model |