CN101493010A - Incision speed reducer for development machine of coal mine - Google Patents
Incision speed reducer for development machine of coal mine Download PDFInfo
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- CN101493010A CN101493010A CNA200910042654XA CN200910042654A CN101493010A CN 101493010 A CN101493010 A CN 101493010A CN A200910042654X A CNA200910042654X A CN A200910042654XA CN 200910042654 A CN200910042654 A CN 200910042654A CN 101493010 A CN101493010 A CN 101493010A
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- speed reducer
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Abstract
The invention relates to a cutting speed reducer for a coal mine development machine, comprising a case, an input shaft and a planetary deceleration assembly connected with the input shaft. The cutting speed reducer is characterized in that the case of the cutting speed reducer is a cylinder respectively provided with an input end flange and an output end flange at both ends and a partition board. The invention simplifies the case structure that can be in cast form, thereby improving the integrated intensity of the case, avoiding the problem of weld stress convergence existing in a welded structure, realizing optimum transmission load balancing, improving the transmission efficiency and guaranteeing processing and installation accuracy; therefore, the internal structure of the whole speed reducer is simple, practical and compact. A needle bearing is selected and used on a low speed level planetary wheel, thereby being capable of meeting the requirement for structure configuration and the requirements for work load and service life, being capable of greatly reducing the volume of spare parts inside the speed reducer and the case, and being conducive to the design requirement that the speed reducer must be installed and connected inside the main body. Therefore, the cost of the whole speed reducer is greatly reduced, and the speed reducer is more suitable for matching transmission of low-power development machines.
Description
Technical field
The present invention relates to a kind of reductor, particularly a kind of coal mine development machine cutting speed reducer.
Background technology
Coal mine development machine is a kind ofly to be used for coal and half coal petrography underworkings cutting coal petrography, to load the comprehensive mechanized driving equipment of transportation.Working environment is relatively poor; Operating mechanism's driving power is big, and the cutting loading excursion has short-term overload, shock loading greatly and often, vibrates bigger.The pick coal advances continuously in the tunnel, must excavate whole section during operation, requires cutting mechanism not only will have certain torque and rotating speed with the cutting coal petrography, and wants and can bob and weave.Whole equipment generally is made up of cutting mechanism, shipment activity, walking mechanism, hydraulic system, spraying system, electrical system, several major parts of fuselage.Wherein cutting mechanism is the key operation parts of development machine, it is fixed on the fuselage, form by cutting speed reducer and cutting head, its cutting speed reducer is its core running part, input and main frame power transmission shaft link, output and cutting head link, and input power is generally 30-300KW, and rotating speed is 750r/min or 1500r/min.Its structural shape and technical indicator are to the performance and the quality level decisive role of development machine.Coal mine development machine cantilevered longitudinal axis cutting mechanism reductor generally by the reductor casing, place its inner transmission mechanism and be arranged at the propelling oil cylinder that the casing both sides play supporting role and form, advance oil cylinder also effect of lifting cutting arm when playing supporting role, the orientation of adjusting cutting arm is to adapt to the needs of cutting operation.Because reductor casing both sides must be provided with the support that advances oil cylinder is installed, so must adopt the basket structure of welding, the main cross section is the square-section, and structure is complicated, and difficulty of processing is big; The inner relatively-stationary standard NGW planetary reducer of the structure structure that adopts of reductor, as a whole and the two ends of output shaft and slow speed turbine stage planet carrier all are bearing on the bearing, therefore in the casing place's bearing block must be set, make its structure complicated more, difficulty of processing increases.There is the following problem in coal mine development machine cantilevered longitudinal axis cutting mechanism reductor structure of the prior art: 1, the cutting mechanism center of gravity partially before, under the reaction force acts that when teeter is cut, is produced, easily make development machine produce bigger vibration, influence the operating mode of component and even complete machine, thereby reduce application life even cause the security reliability problem; 2, this baroque welded construction reductor casing exists stress concentration point many, and the fatigue crack defective easily takes place under the vibration effect during work; 3, the as a whole and two ends of output shaft and slow speed turbine stage planet carrier must be bearing on the bearing, and the difficulty of processing of himself and casing is big;
In sum, existing coal mine development machine cantilevered longitudinal axis cutting mechanism reductor needs further to improve.
Summary of the invention
The object of the present invention is to provide a kind of reductor of coal mine development machine cantilevered longitudinal axis cutting mechanism, it can overcome the shortcoming of prior art, improves body structure, improves the bulk strength of casing, avoid the existing weld stress concentration problem of welded structure, reduce difficulty of processing and cost.
Technical scheme of the present invention is:
A kind of cutting speed reducer of coal mine development machine, it by casing, power shaft, place planetary reduction gear assembly in the casing, that link with power shaft to form, it is characterized in that: described reductor casing input and output are respectively arranged with flange.
As to further improvement of the present invention, described planetary reduction gear assembly comprises level planetary assemblies at a high speed, output shaft, the slow speed turbine stage planetary assemblies, described high speed level planetary assemblies comprises level sun gear at a high speed, high speed level planetary gear, high speed level planet carrier, described slow speed turbine stage planetary assemblies comprises the slow speed turbine stage sun gear, the slow speed turbine stage planetary gear, the slow speed turbine stage planet carrier, described high speed level sun gear and power shaft are into a single integrated structure, the level planetary gear places in the high speed level planet carrier at a high speed, the level planetary gear is fixed on the high speed level planet carrier by the high speed level planet wheel spindle at its center at a high speed, described high speed level planet carrier and slow speed turbine stage sun gear are fixed into one, the slow speed turbine stage planetary gear places in the slow speed turbine stage planet carrier, the slow speed turbine stage planetary gear connects with the slow speed turbine stage planet carrier by the low-speed planets axle at its center, and described slow speed turbine stage planet carrier is that spline fitted connects with output shaft.
As to further improvement of the present invention, described reductor casing is the cylinder of end sealing, an end opening, and described casing openend is sealed by case lid, and described reductor casing blind end is provided with the input flange, and described case lid is the output flange.
As to further improvement of the present invention, be provided with dividing plate in the described reductor casing perpendicular to its central axis.
As to further improvement of the present invention, the bearing of input shaft of supporting reductor power shaft is installed on the described casing internal partition.
As to further improvement of the present invention, the power of described reductor power shaft is 55KW.
As to further improvement of the present invention, described slow speed turbine stage planet carrier and the spline fitted of output shaft connect for involute spline and cooperate connection.
As to further improvement of the present invention, the needle bearing connection that matches with the slow speed turbine stage planet wheel spindle is installed in the described slow speed turbine stage planetary gear endoporus.
Beneficial effect of the present invention is:
The present invention is the less relatively cylinder of radial dimension with the reductor cabinet design, and can connect with main motor and fuselage respectively by flange is set at two ends, simplified body structure greatly, but cast form, improve the bulk strength of casing, avoid the existing weld stress concentration problem of welded structure, guarantee the machining accuracy of casing simultaneously easily.Casing middle part design has dividing plate, and bearing that not only can mounting support reductor power shaft has improved the bulk strength of casing simultaneously.
Because the reductor casing is installed on fuselage interior by flange, make whole reductor be arranged in machine body of boring machine inside, destabilizing moment and vibration that the reaction force that casing produces in the time of need not bearing huge propulsive force and bob and weave cutting because of cutting head forms.
Because high-speed carrier and low speed planetary assemblies are floating structure, simultaneously slow speed turbine stage planet carrier and output shaft are that involute spline cooperates and realizes the unsteady of heavy duty class planet carrier, float effective and reliability is high, realized that best transmission all carries, improved transmission efficiency.
Owing to select the less needle bearing of radial dimension for use on the slow speed turbine stage planetary gear, can significantly reduce reductor inner components and casing volume, be installed and connected in the interior design requirement of fuselage thereby help reductor.Significantly reduced simultaneously the cost of whole reductor, be more suitable for, made whole reductor internal construction practical and compact in the supporting transmission of low power development machine.
Description of drawings
Fig. 1 is an axial sectional view of the present invention;
Fig. 2 is the A-A sectional view radially of the slow speed turbine stage among Fig. 1 of the present invention;
Fig. 3 is the B-B sectional view radially of the high speed level among Fig. 1 of the present invention.
Among the figure:
1, case lid, 2, the slow speed turbine stage planetary gear, 3, needle bearing, 4, the slow speed turbine stage planet wheel spindle, 5, level planetary gear at a high speed, 6, level bearing at a high speed, 7, level planet wheel spindle at a high speed, 8, input flange, 9 output shafts, 10, the slow speed turbine stage planet carrier, 11, slow speed turbine stage sun gear, 12, level planet carrier at a high speed, 13, casing, 14, level sun gear at a high speed, 15, bearing of input shaft, 16, power shaft, 17, fuselage, 18, motor, 19, dividing plate.
The specific embodiment
Embodiment 1:
A kind of cutting speed reducer of coal mine development machine, it by casing 13, power shaft 16, place planetary reduction gear assembly in the casing 13, that link with power shaft 16 to form, reductor casing 13 inputs and output are respectively arranged with flange, reductor casing 13 is the cylinder of end sealing, an end opening, casing 13 openends are by case lid 1 sealing, be provided with dividing plate 19 in the casing 13, reductor casing 13 blind ends are provided with input flange 8, case lid 1 is the output flange, and the bearing of input shaft 15 of supporting reductor power shaft 16 is installed on casing 13 internal partitions 19.Power shaft 16 is connected with motor 18, power shaft 16 is 55KW by the power of motor 18 inputs, being provided with output shaft 9 in the planetary reduction gear assembly links with the cutting head power transmission shaft, whole reductor is installed on fuselage 17 inside, the planetary reduction gear assembly comprises level planetary assemblies at a high speed, output shaft 9, the slow speed turbine stage planetary assemblies, the level planetary assemblies comprises level sun gear 14 at a high speed at a high speed, high speed level planetary gear 5, high speed level planet carrier 12, the slow speed turbine stage planetary assemblies comprises slow speed turbine stage sun gear 11, slow speed turbine stage planetary gear 2, slow speed turbine stage planet carrier 10, level sun gear 14 and power shaft 16 are into a single integrated structure at a high speed, level planetary gear 5 places in the high speed level planet carrier 12 at a high speed, level planetary gear 5 is fixed on the high speed level planet carrier 12 by a high speed level bearing 6 by the high speed level planet wheel spindle 7 at its center at a high speed, level planet carrier 12 is fixed into one with slow speed turbine stage sun gear 11 at a high speed, slow speed turbine stage planetary gear 2 places in the slow speed turbine stage planet carrier 10, needle bearing 3 connection that matches with slow speed turbine stage planet wheel spindle 4 is installed in slow speed turbine stage planetary gear 2 endoporus, slow speed turbine stage planetary gear 2 connects with slow speed turbine stage planet carrier 10 by the slow speed turbine stage planet wheel spindle 4 at its center, and slow speed turbine stage planet carrier 10 cooperates connection with output shaft 9 for involute spline.
Claims (10)
1, a kind of cutting speed reducer of coal mine development machine, it by casing, power shaft, place planetary reduction gear assembly in the casing, that link with power shaft to form, it is characterized in that: described reductor casing input and output are respectively arranged with flange.
2, a kind of cutting speed reducer of coal mine development machine according to claim 1, it is characterized in that: described planetary reduction gear assembly comprises level planetary assemblies at a high speed, output shaft, the slow speed turbine stage planetary assemblies, described high speed level planetary assemblies comprises level sun gear at a high speed, high speed level planetary gear, high speed level planet carrier, described slow speed turbine stage planetary assemblies comprises the slow speed turbine stage sun gear, the slow speed turbine stage planetary gear, the slow speed turbine stage planet carrier, described high speed level sun gear and power shaft are into a single integrated structure, the level planetary gear places in the high speed level planet carrier at a high speed, the level planetary gear is fixed on the high speed level planet carrier by the high speed level planet wheel spindle at its center at a high speed, described high speed level planet carrier and slow speed turbine stage sun gear are fixed into one, the slow speed turbine stage planetary gear places in the slow speed turbine stage planet carrier, the slow speed turbine stage planetary gear connects with the slow speed turbine stage planet carrier by the low-speed planets axle at its center, and described slow speed turbine stage planet carrier is that spline fitted connects with output shaft.
3, a kind of cutting speed reducer of coal mine development machine according to claim 1, it is characterized in that: described reductor casing is the cylinder of end sealing, an end opening, described casing openend is sealed by case lid, described reductor casing blind end is provided with the input flange, and described case lid is the output flange.
4, a kind of cutting speed reducer of coal mine development machine according to claim 2, it is characterized in that: described reductor casing is the cylinder of end sealing, an end opening, described casing openend is sealed by case lid, described reductor casing blind end is provided with the input flange, and described case lid is the output flange.
5, according to claim 3 or 4 described a kind of cutting speed reducer of coal mine development machine, it is characterized in that: be provided with dividing plate in the described reductor casing perpendicular to its central axis.
6, a kind of cutting speed reducer of coal mine development machine according to claim 5 is characterized in that: the bearing of input shaft that supporting reductor power shaft is installed on the described casing internal partition.
7, a kind of cutting speed reducer of coal mine development machine according to claim 6 is characterized in that: the power of described reductor power shaft is 55KW.
8, a kind of cutting speed reducer of coal mine development machine according to claim 7 is characterized in that: described slow speed turbine stage planet carrier cooperates connection with the spline fitted connection of output shaft for involute spline.
9, a kind of cutting speed reducer of coal mine development machine according to claim 7 is characterized in that: the needle bearing connection that matches with the slow speed turbine stage planet wheel spindle is installed in the described slow speed turbine stage planetary gear endoporus.
10, a kind of cutting speed reducer of coal mine development machine according to claim 6 is characterized in that: the needle bearing connection that matches with the slow speed turbine stage planet wheel spindle is installed in the described slow speed turbine stage planetary gear endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910042654XA CN101493010A (en) | 2009-02-13 | 2009-02-13 | Incision speed reducer for development machine of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910042654XA CN101493010A (en) | 2009-02-13 | 2009-02-13 | Incision speed reducer for development machine of coal mine |
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| Publication Number | Publication Date |
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| CN101493010A true CN101493010A (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200910042654XA Pending CN101493010A (en) | 2009-02-13 | 2009-02-13 | Incision speed reducer for development machine of coal mine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116151A (en) * | 2011-02-24 | 2011-07-06 | 三一重型装备有限公司 | Continuous miner and cutting speed reducer thereof |
| CN105508516A (en) * | 2016-02-01 | 2016-04-20 | 武汉市精华减速机制造有限公司 | Orthogonal direct-connection reducer |
| CN105508515A (en) * | 2016-02-01 | 2016-04-20 | 武汉市精华减速机制造有限公司 | Coaxial direct-connection speed reducer |
| CN112196964A (en) * | 2020-10-26 | 2021-01-08 | 中国煤炭科工集团太原研究院有限公司 | Speed reducer and walking bracket with same |
-
2009
- 2009-02-13 CN CNA200910042654XA patent/CN101493010A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116151A (en) * | 2011-02-24 | 2011-07-06 | 三一重型装备有限公司 | Continuous miner and cutting speed reducer thereof |
| CN102116151B (en) * | 2011-02-24 | 2012-10-03 | 三一重型装备有限公司 | Continuous miner and cutting speed reducer thereof |
| CN105508516A (en) * | 2016-02-01 | 2016-04-20 | 武汉市精华减速机制造有限公司 | Orthogonal direct-connection reducer |
| CN105508515A (en) * | 2016-02-01 | 2016-04-20 | 武汉市精华减速机制造有限公司 | Coaxial direct-connection speed reducer |
| CN112196964A (en) * | 2020-10-26 | 2021-01-08 | 中国煤炭科工集团太原研究院有限公司 | Speed reducer and walking bracket with same |
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Open date: 20090729 |