WO2023092833A1 - 减速箱及压裂设备 - Google Patents

减速箱及压裂设备 Download PDF

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Publication number
WO2023092833A1
WO2023092833A1 PCT/CN2022/070962 CN2022070962W WO2023092833A1 WO 2023092833 A1 WO2023092833 A1 WO 2023092833A1 CN 2022070962 W CN2022070962 W CN 2022070962W WO 2023092833 A1 WO2023092833 A1 WO 2023092833A1
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WO
WIPO (PCT)
Prior art keywords
gear
planetary
reduction box
shaft
elastic member
Prior art date
Application number
PCT/CN2022/070962
Other languages
English (en)
French (fr)
Inventor
崔海萍
魏小淞
崔文平
Original Assignee
烟台杰瑞石油装备技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 烟台杰瑞石油装备技术有限公司 filed Critical 烟台杰瑞石油装备技术有限公司
Priority to US18/089,599 priority Critical patent/US11828236B2/en
Publication of WO2023092833A1 publication Critical patent/WO2023092833A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/12—Combinations with mechanical gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion

Definitions

  • the application belongs to the field of transmission technology, and in particular relates to a reduction box and fracturing equipment.
  • diesel engines are usually used to drive the fracturing devices of fracturing equipment, but the diesel engine and the reduction box used in conjunction with the diesel engine have limited power, which makes the fracturing equipment unable to perform high-power operations.
  • the energy source of the diesel engine is diesel, and diesel is likely to cause environmental pollution problems, it will cause the fracturing equipment to fail to meet the emission requirements.
  • the purpose of the embodiments of the present application is to provide a reduction box and fracturing equipment, which can solve the problems of the fracturing equipment being unable to perform high-power operation and causing serious pollution to the environment.
  • the embodiment of the present application provides a reduction box for connecting with a turbine engine, which specifically includes a housing, a planetary carrier, a connecting flange, a planetary shaft, a planetary gear, a sun gear, an inner ring gear, and an input shaft and output shaft;
  • the casing is connected to the planet carrier, the connecting flange is connected to the planet carrier, and the connecting flange is used to connect the turbine engine;
  • the planetary shaft is connected to the planet carrier, the planetary gear is sleeved on the planetary shaft, one end of the input shaft is used to connect with the output end of the turbine engine, and the other end of the input shaft is sleeved There is the sun gear, the sun gear meshes with the planetary gears, the ring gear meshes with the planetary gears, and the ring gear is connected with the output shaft.
  • the embodiment of the present application provides a fracturing equipment, which includes a fracturing device, a turbine engine and a reduction box, the turbine engine is connected to the fracturing device through the reduction box, and the reduction box is the aforementioned gearbox.
  • the input shaft of the reduction box is connected to the output end of the turbine engine.
  • the casing of the reduction box, the planetary carrier and the connecting flange are connected and integrated to form a peripheral structure with high structural strength.
  • the peripheral structure It is connected with the turbine engine, so that the reduction box can withstand the high speed output by the turbine engine, and then reliably drive the fracturing device to work. Due to the high power of the turbine engine, it can meet the requirements of high-power operation of fracturing equipment.
  • the power source of the turbine engine is natural gas, and natural gas is a clean energy, so this solution can solve the problem of fracturing equipment. It is impossible to carry out high-power operation and bring serious pollution to the environment.
  • Fig. 1 is the cross-sectional view of the gear box disclosed by the embodiment of the present application.
  • Fig. 2 is an exploded view of the input shaft and the sun gear disclosed in the embodiment of the present application;
  • Fig. 3 is a sectional view of the sun gear disclosed in the embodiment of the present application.
  • Figure 4 is an exploded view of the planetary wheel disclosed in the embodiment of the present application.
  • Fig. 5 is a cross-sectional view of a planetary wheel disclosed in an embodiment of the present application.
  • Fig. 6 is a partial cross-sectional view of the reduction box disclosed in the embodiment of the present application.
  • Fig. 12 is a cross-sectional view of a partial structure of the reduction box disclosed in the embodiment of the present application.
  • Fig. 13 is a perspective view of the reduction box disclosed in the embodiment of the present application.
  • the embodiment of the present application discloses a reduction gearbox, which is used to connect with the turbine engine, so as to transmit the power output by the turbine engine to the fracturing device, where the fracturing device may include a plunger pump .
  • the reduction box may include a housing 110 , a planetary carrier 120 , a connecting flange 130 , a planetary shaft 140 , a planetary gear 150 , a sun gear 160 , an inner ring gear 170 , an input shaft 180 and an output shaft 190 .
  • the housing 110 can be used as a base component of the reduction box, which is used to provide an installation basis for other components contained in the reduction box.
  • the housing 110 is connected to the planetary carrier 120.
  • the connecting position of the housing 110 and the planetary carrier 120 can be the side of the housing 110 close to the turbine engine.
  • the two can be detachably connected by connecting pieces such as screws. , so as to facilitate disassembly.
  • the connecting flange 130 is connected to the planetary carrier 120, optionally, the two can be detachably connected by connecting pieces such as screws, so as to facilitate disassembly.
  • the connecting flange 130 is used to connect the turbine engine, that is to say, the connection between the reduction box and the turbine engine can be realized through the connection flange 130, so as to ensure the positional accuracy between the reduction box and the turbine engine, so as to transmit more reliably power.
  • the connecting flange 130 may be integrally located between the planet carrier 120 and the turbine engine.
  • the planetary shaft 140 is connected with the planetary carrier 120.
  • mounting holes can be provided on both sides of the planetary carrier 120, and both ends of the planetary shaft 140 can fit into the mounting holes, so as to realize the connection between the planetary shaft 140 and the planetary carrier 120.
  • the planetary wheel 150 is sleeved on the planetary shaft 140, and the planetary wheel 150 can rotate relative to the planetary carrier 120.
  • a plurality of third bearings 410 can be arranged between the planetary wheel 150 and the planetary shaft 140, so that the planetary wheel 150 is smoother
  • the ground rotates relative to the planetary shaft 140 while reducing the wear of the planetary gear 150 and the planetary shaft 140.
  • there are at least two planetary gears 150 and planetary carriers 120 and they are arranged in groups, so as to improve the transmission performance of the reduction box.
  • the specific structure of the planetary gear 150 can be flexibly selected.
  • the planetary gear 150 can adopt a herringbone tooth structure, which has the advantages of high coincidence, small axial load, high bearing capacity and stable transmission. If the planetary gear 150 has a one-piece herringbone tooth structure, then there will be a problem that the processing of the planetary gear 150 is too difficult.
  • the planetary gear 150 includes The first gear 151 and the second gear 152, the first gear 151 and the second gear 152 are set separately, and both are connected, the outer peripheral surface of the sun gear 160 is provided with a third transmission tooth 162 and a fourth transmission tooth 163, the second A gear 151 meshes with the third transmission tooth 162 , and the second gear 152 meshes with the fourth transmission tooth 163 .
  • the first gear 151 and the second gear 152 can be processed separately, and then the first gear 151 and the second gear 152 can be assembled together to obtain the herringbone-shaped planetary gear 150. Since the difficulty of machining the first gear 151 and the second gear 152 is relatively low, this embodiment can reduce the difficulty of machining the planetary gear 150 .
  • first gear 151 and second gear 152 can be directly connected by non-detachable means such as welding, but in order to facilitate the disassembly and assembly of the planetary gear 150, the first gear 151 and the second gear 152 can be assembled together in a detachable connection. . Further, in order to improve the disassembly efficiency of the planetary gear 150, the first gear 151 and the second gear 152 can be pre-positioned by the positioning pin 420, and then the first gear 151 and the second gear 152 are fixedly connected by the first screw 430, Thus, the assembly of the planetary gear 150 is completed. Optionally, there are at least two positioning pins 420 and first screws 430 , so as to improve connection reliability between the first gear 151 and the second gear 152 .
  • the input shaft 180 can be used as the power input part of the reduction box, and one end thereof is used to be connected with the output end of the turbine engine, and the other end of the input shaft 180 is sleeved with the sun gear 160, and the sun gear 160 is meshed with the planetary gear 150, so the input shaft 180 can drive the sun gear 160 to rotate, and the sun gear 160 further drives the planetary gear 150 to rotate.
  • the sun gear 160 and the input shaft 180 can be integrally arranged. At this time, the sun gear 160 and the input shaft 180 can form a gear shaft, but in order to facilitate assembly and subsequent maintenance, the sun gear 160 and the input shaft 180 can be separately arranged.
  • a transmission structure can be set between them to realize power transmission.
  • the inner peripheral surface of the sun gear 160 is provided with a first transmission tooth 161
  • the outer peripheral surface of the input shaft 180 is provided with a second transmission tooth 181
  • the first transmission tooth 161 is meshed with the second transmission tooth 181, thereby realizing transmission .
  • the input shaft 180 and the sun gear 160 must be strictly coaxial, which will bring problems to the assembly of the reduction box. It is more difficult, and once the reduction box is affected by factors such as vibration during operation, the contact area between the input shaft 180 and the sun gear 160 is likely to be too small, which will eventually cause wear.
  • the second transmission tooth 181 can be set as a drum-shaped tooth, that is, the second transmission tooth 181 can extend along the arc direction, even if the input shaft 180 and the sun gear 160 are not strictly coaxial, the first transmission tooth 161 and the second transmission tooth A large contact area can also be formed between the two transmission teeth 181 , so that abrasion is not easy to occur, so this structure can reduce the coaxiality requirement of the input shaft 180 and the sun gear 160 .
  • the second transmission teeth 181 are located on the outer peripheral surface of the input shaft 180 , it is easier to form crowned teeth.
  • the output shaft 190 can swing 2° ⁇ 5° in its own radial direction.
  • the ring gear 170 meshes with the planetary gear 150 , and the ring gear 170 is connected with the output shaft 190 .
  • the ring gear 170 can rotate relative to the housing 110, so when the planetary gear 150 rotates, the ring gear 170 rotates relative to the housing 110 under the action of the planetary gear 150, thereby driving the output shaft 190 to rotate, and the output shaft 190 can rotate It is connected with the fracturing device to drive the fracturing device to work.
  • the ring gear 170 can be of an integral structure, or a split structure, which can specifically include a ring gear part 171 and a connecting part 172, and the ring gear part 171 can be located outside the planetary gear 150 and connected to 150 meshes, the connecting portion 172 can be connected to the ring gear portion 171 through a connecting piece such as a screw, and the connecting portion 172 is sheathed on the output shaft 190 , so as to realize the power transmission between the planetary gear 150 and the output shaft 190 .
  • the output shaft 190 can be arranged coaxially with the input shaft 180, so that the structure of the reduction box is more compact.
  • the output shaft 190 can rotate relative to the housing 110 , and in order to improve the stability of the output shaft 190 when rotating, the output shaft 190 can be supported by at least two bearings.
  • the output shaft 190 can be rotatably connected with the planet carrier 120 through the first bearing 220, so that the output shaft 190 can be supported on the planet carrier 120.
  • the reduction box further includes a first elastic member 210 , one end of the first elastic member 210 is connected with the planet carrier 120 , and the other end of the first elastic member 210 is connected with the outer ring of the first bearing 220 .
  • the first elastic member 210 may be a spring.
  • an appropriate force can be applied to the first elastic member 210 to deform the first elastic member 210.
  • the first elastic member 210 can apply an active force to the outer ring of the first bearing 220, so that the first bearing The outer ring of 220 is in closer contact with the rollers, thereby prolonging the service life of the first bearing 220 .
  • the reduction box further includes a first pressure plate 230 through which the first elastic member 210 is connected with the outer ring of the first bearing 220 .
  • a large contact area can be formed between the first pressure plate 230 and the outer ring of the first bearing 220, thereby preventing the outer ring of the first bearing 220 from being scratched, and even if the first pressure plate 230 is damaged by the first If the elastic member 210 is scratched, it is only necessary to replace the first pressing plate 230 with a lower cost, so there is basically no additional maintenance cost.
  • the output shaft 190 may be directly connected to the housing 110 through the second bearing 260 , but the wall thickness of the housing 110 is generally small, so it is not convenient to install the second bearing 260 .
  • the reduction box can also include a gland 240, the gland 240 is connected with the housing 110, the output shaft 190 is rotationally connected with the gland 240 through the second bearing 260, the gland 240 can protrude relative to the housing 110, thereby more It is convenient to arrange the second bearing 260 .
  • the reduction box may further include a second elastic member 250 , one end of the second elastic member 250 is connected with the gland 240 , and the other end of the second elastic member 250 is connected with the outer ring of the second bearing 260 .
  • the second elastic member 250 may be a spring.
  • an appropriate force can be applied to the second elastic member 250 to deform the second elastic member 250.
  • the second elastic member 250 can apply an active force to the outer ring of the second bearing 260, so that the second bearing The outer ring of 260 is in closer contact with the rollers, thereby prolonging the service life of the second bearing 260 .
  • the reduction box further includes a second pressure plate 270 through which the second elastic member 250 is connected with the outer ring of the second bearing 260 .
  • a large contact area can be formed between the second pressure plate 270 and the outer ring of the second bearing 260, thereby preventing the outer ring of the second bearing 260 from being scratched, and even if the second pressure plate 270 is damaged by the second If the elastic member 250 is scratched, only the second pressing plate 270 with lower cost needs to be replaced, so there is basically no additional maintenance cost.
  • the reduction box further includes an output flange 280 , a brake disc 290 and a brake caliper 310 .
  • the output flange 280 is coaxially connected with the output shaft 190 , optionally, the output flange 280 can be connected with the output shaft 190 through the second screw 440 , and the output shaft 190 can drive the fracturing device through the output flange 280 .
  • the brake disc 290 is sleeved on the output flange 280 , optionally, the brake disc 290 may be connected to the output flange 280 through the first bolt assembly 450 .
  • the brake caliper 310 can be connected with the housing 110 through a screw or other connecting piece, and the brake disc 290 cooperates with the brake caliper 310 so that the brake caliper 310 can hold the brake disc 290 tightly to perform a braking action.
  • the brake disc 290 can be located on the side of the output flange 280 close to the output shaft 190 , so as to reduce the cantilever length of the brake caliper 310 and improve the working reliability of the brake caliper 310 .
  • the brake caliper 310 can be equipped with a hydraulic pipeline.
  • the output flange 280 and the output shaft 190 can only rely on the aforementioned second screw 440 to transmit power, but in order to make the transmission between the two more reliable, the transmission mode of the two can be improved.
  • the output shaft 190 has a first end surface facing the output flange 280
  • the output flange 280 has a second end surface facing the output shaft 190
  • the first end surface is provided with the first gear plate 191
  • the second end surface is provided with the second
  • the toothed disc 281 the first toothed disc 191 is engaged with the second toothed disc 281 .
  • both the first end surface and the second end surface are zigzag end surfaces.
  • the contact area formed when the two mesh is larger, so the power transmission of the output shaft 190 can be more reliably transmitted through the first toothed disc 191 and the second toothed disc 281 to output flange 280.
  • the input shaft 180 of the gearbox is connected to the output end of the turbine engine, and at the same time, the housing 110 of the gearbox, the planetary carrier 120 and the connecting flange 130 are connected and integrated to form a peripheral structure with high structural strength , the peripheral structure is connected with the turbine engine, so that the reduction box can withstand the high rotation speed output by the turbine engine, and then reliably drive the fracturing device to work. Due to the high power of the turbine engine, it can meet the requirements of high-power operation of fracturing equipment. At the same time, the power source of the turbine engine is natural gas, and natural gas is a clean energy, so this solution can solve the problem of fracturing equipment. It is impossible to carry out high-power operation and bring serious pollution to the environment.
  • An embodiment of the present application also provides a fracturing equipment, which includes a fracturing device, a turbine engine, and a reduction box.
  • the turbine engine is connected to the fracturing device through a reduction box, and the reduction box is the reduction box described in any of the above embodiments.

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Abstract

本申请公开了一种减速箱及压裂设备，该减速箱用于与涡轮发动机相连，其包括壳体、行星架、连接法兰、行星轴、行星轮、太阳轮、内齿圈、输入轴和输出轴；所述壳体与所述行星架相连，所述连接法兰与所述行星架相连，所述连接法兰用于连接所述涡轮发动机；所述行星轴与所述行星架相连，所述行星轮套设于所述行星轴，所述输入轴的一端用于与所述涡轮发动机的输出端相连，所述输入轴的另一端套设有所述太阳轮，所述太阳轮与所述行星轮相啮合，所述内齿圈与所述行星轮相啮合，且所述内齿圈与所述输出轴相连。该方案能够解决压裂设备存在的无法进行大功率作业以及给环境带来严重污染的问题。

Description

减速箱及压裂设备
交叉引用
本申请要求2021年11月29日提交在中国专利局、申请号为202122959124.0、发明名称为“减速箱及压裂设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于传动技术领域，具体涉及一种减速箱及压裂设备。
背景技术
随着压裂技术的不断发展，压裂作业已经向着深层井开发的方向发展，因此施工过程中的压力越来越高，且作业排量也越来越高，这就对压裂设备的功率提出了更高的要求。
目前通常采用柴油发动机驱动压裂设备的压裂装置，而柴油发动机以及与柴油发动机配合使用的减速箱功率有限，导致压裂设备无法进行大功率作业。此外，由于柴油发动机的能量来源是柴油，而柴油容易带来环境污染问题，因此会导致压裂设备无法满足排放要求。
发明内容
本申请实施例的目的是提供一种减速箱及压裂设备，能够解决压裂设备存在的无法进行大功率作业以及给环境带来严重污染的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种减速箱，用于与涡轮发动机相连，其特包括壳体、行星架、连接法兰、行星轴、行星轮、太阳轮、内齿圈、输入轴和输出轴；
所述壳体与所述行星架相连，所述连接法兰与所述行星架相连，所述连接法兰用于连接所述涡轮发动机；
所述行星轴与所述行星架相连，所述行星轮套设于所述行星轴，所述输入轴的一端用于与所述涡轮发动机的输出端相连，所述输入轴的另一端套设有所述太阳轮，所述太阳轮与所述行星轮相啮合，所述内齿圈与所述行星轮相啮合， 且所述内齿圈与所述输出轴相连。
第二方面，本申请实施例提供了一种压裂设备，其包括压裂装置、涡轮发动机和减速箱，所述涡轮发动机通过所述减速箱与所述压裂装置相连，所述减速箱为上述减速箱。
本申请实施例中，减速箱的输入轴与涡轮发动机的输出端相连，同时，减速箱的壳体、行星架和连接法兰相连结合成一体，形成结构强度较高的外围结构，该外围结构与涡轮发动机相连，从而使得减速箱可承受由涡轮发动机输出的高转速，进而可靠地驱动压裂装置工作。由于涡轮发动机的功率较高，因此其能够满足压裂装置进行大功率作业的要求，与此同时，涡轮发动机的动力来源为天然气，而天然气是清洁能源，因此该方案可以解决压裂设备存在的无法进行大功率作业以及给环境带来严重污染的问题。
附图说明
图1为本申请实施例公开的减速箱的剖视图；
图2为本申请实施例公开的输入轴和太阳轮的爆炸图；
图3为本申请实施例公开的太阳轮的剖视图；
图4为本申请实施例公开的行星轮的爆炸图；
图5为本申请实施例公开的行星轮的剖视图；
图6为本申请实施例公开的减速箱的局部剖视图；
图7至图11为本申请实施例公开的减速箱的不同部分的爆炸图；
图12为本申请实施例公开的减速箱的部分结构的剖视图；
图13为本申请实施例公开的减速箱的立体图。
附图标记说明：
110-壳体、120-行星架、130-连接法兰、140-行星轴、150-行星轮、151-第一齿轮、152-第二齿轮、160-太阳轮、161-第一传动齿、162-第三传动齿、163-第四传动齿、170-内齿圈、171-齿圈部、172-连接部、180-输入轴、181-第二传动齿、190-输出轴、191-第一齿盘、210-第一弹性件、220-第一轴承、230-第一压板、240-压盖、250-第二弹性件、260-第二轴承、270-第二压板、280-输出法 兰、281-第二齿盘、290-刹车盘、310-刹车钳、410-第三轴承、420-定位销、430-第一螺钉、440-第二螺钉、450-第一螺栓组件。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的减速箱及压裂设备进行详细地说明。
参考图1至图13，本申请实施例公开一种减速箱，该减速箱用于与涡轮发动机相连，从而将涡轮发动机输出的动力传递给压裂装置，这里的压裂装置可以包括柱塞泵。该减速箱可以包括壳体110、行星架120、连接法兰130、行星轴140、行星轮150、太阳轮160、内齿圈170、输入轴180和输出轴190。
壳体110可以作为减速箱的基础部件，其用于为减速箱所包含的其它部件提供安装基础。壳体110与行星架120相连，可选地，壳体110和行星架120的连接位置可以是壳体110靠近涡轮发动机的一侧，可选地，两者可以通过螺钉等连接件可拆卸连接，从而便于拆装。连接法兰130与行星架120相连，可选地，两者可以通过螺钉等连接件可拆卸连接，从而便于拆装。连接法兰130用于连接涡轮发动机，也就是说，可以通过连接法兰130实现减速箱与涡轮发动机之间的连接，从而保证减速箱和涡轮发动机之间的位置精度，以此更可靠地传递动力。减速箱与涡轮发动机安装到一起以后，连接法兰130可以整体位于行星架120和涡轮发动机之间。
行星轴140与行星架120相连，可选地，行星架120的两侧可以设置安装孔，行星轴140的两端可以与安装孔配合，从而实现行星轴140与行星架120之间的连接。行星轮150套设于行星轴140，行星轮150可以相对于行星架120转动，可选地，行星轮150和行星轴140之间可以设置多个第三轴承410，从而使得行星轮150更流畅地相对于行星轴140转动，同时减小行星轮150和行星轴140的磨损。此外，行星轮150和行星架120的数量均为至少两个，且两者成组设置，从而提升减速箱的传动性能。
行星轮150的具体结构形式可以灵活选择，可选地，行星轮150可以采用人字齿型结构，此种结构具有重合度高、轴向载荷小、承载能力高以及传动平稳等优点。如果行星轮150为一体式的人字齿型结构，那么将会出现行星轮150的加工难度过高的问题，为了便于加工行星轮150，可选的实施例中，行星轮150包括旋向相反的第一齿轮151和第二齿轮152，第一齿轮151和第二齿轮152分体设置，且两者相连，太阳轮160的外周面设有第三传动齿162和第四传动齿163，第一齿轮151与第三传动齿162相啮合，第二齿轮152与第四传动齿163相啮合。加工行星轮150时，可以分别加工第一齿轮151和第二齿轮152，然后将第一齿轮151和第二齿轮152组装到一起，就可以得到人字齿型的行星轮150。由于分别加工第一齿轮151和第二齿轮152的难度较低，因此该实施例可以降低行星轮150的加工难度。
上述第一齿轮151和第二齿轮152可以直接通过焊接等不可拆卸的方式相连，但为了便于拆装行星轮150，可以采用可拆卸连接的方式将第一齿轮151和第二齿轮152组装到一起。进一步地，为了提高行星轮150的拆装效率，可以通过定位销420预定位第一齿轮151和第二齿轮152，然后再通过第一螺钉430将第一齿轮151和第二齿轮152固定连接，从而完成行星轮150的组装。可选地，定位销420和第一螺钉430的数量均为至少两个，从而提升第一齿轮151和第二齿轮152的连接可靠性。
输入轴180可以作为减速箱的动力输入部件，其一端用于与涡轮发动机的输出端相连，输入轴180的另一端套设有太阳轮160，太阳轮160与行星轮150 相啮合，因此输入轴180可以带动太阳轮160转动，太阳轮160进一步带动行星轮150转动。太阳轮160和输入轴180可以一体设置，此时太阳轮160和输入轴180可以形成齿轮轴，但为了便于组装以及后续的维护，可以将太阳轮160和输入轴180分体设置，两者之间可以设置传动结构以实现动力传递。可选地，太阳轮160的内周面设有第一传动齿161，输入轴180的外周面设有第二传动齿181，第一传动齿161与第二传动齿181相啮合，从而实现传动。如果第一传动齿161和第二传动齿181均为沿直线方向延伸的齿，那么为了保证传动的可靠性，输入轴180和太阳轮160必须严格同轴，这会给减速箱的装配带来较大的难度，并且一旦减速箱运行的过程中受到振动等因素的影响，就容易出现输入轴180和太阳轮160的接触面积过小的情况，最终造成磨损。基于此，可以将第二传动齿181设置为鼓形齿，即第二传动齿181可沿弧线方向延伸，即使输入轴180和太阳轮160并未严格同轴，第一传动齿161和第二传动齿181之间也可以形成较大的接触面积，从而不容易出现磨损，因此该结构可以降低输入轴180和太阳轮160的同轴度要求。此外，由于第二传动齿181位于输入轴180的外周面，因此更容易成型鼓形齿。可选地，输出轴190可以在自身的径向上摆动2°～5°。
内齿圈170与行星轮150相啮合，且内齿圈170与输出轴190相连。内齿圈170可以相对于壳体110转动，因此当行星轮150转动时，内齿圈170在行星轮150的作用下相对于壳体110转动，从而带动输出轴190转动，而输出轴190可与压裂装置相连，从而驱动压裂装置工作。可选地，内齿圈170可以是一体式结构，也可以采用分体式结构，其具体可以包括齿圈部171和连接部172，齿圈部171可以位于行星轮150的外侧，并与行星轮150啮合，连接部172可通过螺钉等连接件与齿圈部171相连，且连接部172套设于输出轴190，从而实现行星轮150与输出轴190之间的动力传递。可选地，输出轴190可与输入轴180同轴设置，从而使得减速箱的结构更加紧凑。
输出轴190可以相对于壳体110转动，为了提升输出轴190转动时的稳定性，输出轴190可以通过至少两个轴承进行支撑。可选地，输出轴190可以通 过第一轴承220与行星架120转动连接，从而使得输出轴190可以支撑于行星架120。进一步地，减速箱还包括第一弹性件210，第一弹性件210的一端与行星架120相连，第一弹性件210的另一端与第一轴承220的外圈相连。可选地，第一弹性件210可以是弹簧。组装减速箱时，可以适当向第一弹性件210施加作用力，使得第一弹性件210变形，此时第一弹性件210可以向第一轴承220的外圈施加作用力，从而使得第一轴承220的外圈与滚子更紧密地接触，以此延长第一轴承220的使用寿命。
上述第一弹性件210可以直接与第一轴承220的外圈接触，从而向该外圈施加作用力，但第一弹性件210与外圈的接触面积较小，容易划伤第一轴承220的外圈。因此，为了解决该问题，减速箱还包括第一压板230，第一弹性件210通过第一压板230与第一轴承220的外圈相连。此实施例中，第一压板230与第一轴承220的外圈之间可以形成较大的接触面积，从而防止第一轴承220的外圈被划伤，并且，即使第一压板230被第一弹性件210划伤，只需要更换成本较低的第一压板230即可，因此基本不会带来额外的维护成本。
可选的实施例中，输出轴190可以通过第二轴承260直接与壳体110相连，但壳体110的壁厚通常较小，因此不便于设置第二轴承260。为此，减速箱还可以包括压盖240，压盖240与壳体110相连，输出轴190通过第二轴承260与压盖240转动连接，压盖240可以相对于壳体110凸出，从而更便于设置第二轴承260。进一步地，减速箱还可以包括第二弹性件250，第二弹性件250的一端与压盖240相连，第二弹性件250的另一端与第二轴承260的外圈相连。可选地，第二弹性件250可以是弹簧。组装减速箱时，可以适当向第二弹性件250施加作用力，使得第二弹性件250变形，此时第二弹性件250可以向第二轴承260的外圈施加作用力，从而使得第二轴承260的外圈与滚子更紧密地接触，进而延长第二轴承260的使用寿命。
上述第二弹性件250可以直接与第二轴承260的外圈接触，从而向该外圈施加作用力，但第二弹性件250与外圈的接触面积较小，容易划伤第二轴承260的外圈。因此，为了解决该问题，减速箱还包括第二压板270，第二弹性件250 通过第二压板270与第二轴承260的外圈相连。此实施例中，第二压板270与第二轴承260的外圈之间可以形成较大的接触面积，从而防止第二轴承260的外圈被划伤，并且，即使第二压板270被第二弹性件250划伤，只需要更换成本较低的第二压板270即可，因此基本不会带来额外的维护成本。
可选地，减速箱还包括输出法兰280、刹车盘290和刹车钳310。输出法兰280与输出轴190同轴连接，可选地，输出法兰280可以通过第二螺钉440与输出轴190相连，输出轴190可以通过输出法兰280驱动压裂装置。刹车盘290套设于输出法兰280，可选地，刹车盘290可以通过第一螺栓组件450与输出法兰280相连。刹车钳310可以通过螺钉等连接件与壳体110相连，刹车盘290与刹车钳310相配合，以使刹车钳310可以抱紧刹车盘290而执行刹车动作。刹车盘290可以位于输出法兰280靠近输出轴190的一侧，从而减小刹车钳310的悬臂长度，以提升刹车钳310的工作可靠性。刹车钳310可以设置液压管路，需要刹车时，液压管路内产生压力，刹车钳310可以开始工作，以抱紧刹车盘290，从而使得输出法兰280停止旋转，减速箱不再对外输出转速和扭矩；不需要刹车时，液压管路内没有压力，刹车钳310松开刹车盘290，从而允许输出法兰280旋转，以此对外输出转速和扭矩。可见，该结构可以可靠地控制输出法兰280旋转与否，从而灵活执行刹车动作。
输出法兰280和输出轴190可以仅依靠前述的第二螺钉440传递动力，但为了使得两者之间的传动更加可靠，可以对两者的传动方式进行改进。可选地，输出轴190具有朝向输出法兰280的第一端面，输出法兰280具有朝向输出轴190的第二端面，第一端面设有第一齿盘191，第二端面设有第二齿盘281，第一齿盘191与第二齿盘281相啮合。换言之，第一端面和第二端面均为锯齿形端面。由于第一齿盘191和第二齿盘281相对，两者啮合时所形成的接触面积更大，因此通过第一齿盘191和第二齿盘281可以更可靠地将输出轴190的动力传递至输出法兰280。
本申请实施例中，减速箱的输入轴180与涡轮发动机的输出端相连，同时，减速箱的壳体110、行星架120和连接法兰130相连结合成一体，形成结构强 度较高的外围结构，该外围结构与涡轮发动机相连，从而使得减速箱可承受由涡轮发动机输出的高转速，进而可靠地驱动压裂装置工作。由于涡轮发动机的功率较高，因此其能够满足压裂装置进行大功率作业的要求，与此同时，涡轮发动机的动力来源为天然气，而天然气是清洁能源，因此该方案可以解决压裂设备存在的无法进行大功率作业以及给环境带来严重污染的问题。
本申请实施例还提供一种压裂设备，其包括压裂装置、涡轮发动机和减速箱，涡轮发动机通过减速箱与压裂装置相连，该减速箱为上述任意实施例所述的减速箱。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种减速箱，用于与涡轮发动机相连，包括壳体(110)、行星架(120)、连接法兰(130)、行星轴(140)、行星轮(150)、太阳轮(160)、内齿圈(170)、输入轴(180)和输出轴(190)；
    所述壳体(110)与所述行星架(120)相连，所述连接法兰(130)与所述行星架(120)相连，所述连接法兰(130)用于连接所述涡轮发动机；
    所述行星轴(140)与所述行星架(120)相连，所述行星轮(150)套设于所述行星轴(140)，所述输入轴(180)的一端用于与所述涡轮发动机的输出端相连，所述输入轴(180)的另一端套设有所述太阳轮(160)，所述太阳轮(160)与所述行星轮(150)相啮合，所述内齿圈(170)与所述行星轮(150)相啮合，且所述内齿圈(170)与所述输出轴(190)相连。
  2. 根据权利要求1所述的减速箱，其中，所述减速箱还包括第一弹性件(210)，所述输出轴(190)通过第一轴承(220)与所述行星架(120)转动连接，所述第一弹性件(210)的一端与所述行星架(120)相连，所述第一弹性件(210)的另一端与所述第一轴承(220)的外圈相连。
  3. 根据权利要求2所述的减速箱，其中，所述减速箱还包括第一压板(230)，所述第一弹性件(210)通过所述第一压板(230)与所述第一轴承(220)的外圈相连。
  4. 根据权利要求1所述的减速箱，其中，所述减速箱还包括压盖(240)和第二弹性件(250)，所述压盖(240)与所述壳体(110)相连，所述输出轴(190)通过第二轴承(260)与所述压盖(240)转动连接，所述第二弹性件(250)的一端与所述压盖(240)相连，所述第二弹性件(250)的另一端与所述第二轴承(260)的外圈相连。
  5. 根据权利要求4所述的减速箱，其中，所述减速箱还包括第二压板(270)，所述第二弹性件(250)通过所述第二压板(270)与所述第二轴承(260)的外圈相连。
  6. 根据权利要求1所述的减速箱，其中，所述太阳轮(160)的内周面设有第一传动齿(161)，所述输入轴(180)的外周面设有第二传动齿(181)，所述第一传动齿(161)与所述第二传动齿(181)相啮合，且所述第二传动齿(181)为鼓形齿。
  7. 根据权利要求1所述的减速箱，其中，所述行星轮(150)包括旋向相反的第一齿轮(151)和第二齿轮(152)，所述第一齿轮(151)和所述第二齿轮(152)分体设置，且两者相连，所述太阳轮(160)的外周面设有第三传动齿(162)和第四传动齿(163)，所述第一齿轮(151)与所述第三传动齿(162)相啮合，所述第二齿轮(152)与所述第四传动齿(163)相啮合。
  8. 根据权利要求1所述的减速箱，其中，所述减速箱还包括输出法兰(280)、刹车盘(290)和刹车钳(310)，所述输出法兰(280)与所述输出轴(190)同轴连接，所述刹车盘(290)套设于所述输出法兰(280)，所述刹车钳(310)与所述壳体(110)相连，所述刹车盘(290)与所述刹车钳(310)相配合。
  9. 根据权利要求8所述的减速箱，其中，所述输出轴(190)具有朝向所述输出法兰(280)的第一端面，所述输出法兰(280)具有朝向所述输出轴(190)的第二端面，所述第一端面设有第一齿盘(191)，所述第二端面设有第二齿盘(281)，所述第一齿盘(191)与所述第二齿盘(281)相啮合。
  10. 一种压裂设备，包括压裂装置、涡轮发动机和减速箱，所述涡轮发动机通过所述减速箱与所述压裂装置相连，所述减速箱为权利要求1至9中任一项所述的减速箱。
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