阅读说明：本技术 一种新型六档变速器 (Novel six-gear transmission ) 是由 任荣智 李志刚 周凯 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种新型六档变速器,包括输入轴I、第一中间轴II、第二中间轴III、第三中间轴轴IV和行星架9；空套齿轮{3、5、8}和固定齿轮{1、2、4、6、7}、离合器{C1、C2、C3、C4}；其中：输入轴I、第三中间轴轴IV和行星架9的旋转轴线重合；输入轴I上连接固定齿轮4；第一中间轴II上连接固定齿轮1、固定齿轮2、空套齿轮3和离合器C1；所述离合器C1的主动端连接固定齿轮2、从动端连接空套齿轮3；第二中间轴III上连接固定齿轮7、空套齿轮8和离合器C3；所述离合器C3的主动端连接固定齿轮7、从动端连接空套齿轮8；第三中间轴轴IV上连接固定齿轮6、空套齿轮5、离合器C2和离合器C4。(The invention discloses a novel six-gear transmission which comprises an input shaft I, a first intermediate shaft II, a second intermediate shaft III, a third intermediate shaft IV and a planet carrier 9, wherein the input shaft I is connected with the first intermediate shaft II through a first transmission shaft I; idler gears {3, 5, 8} and fixed gears {1, 2, 4, 6, 7}, clutches { C1, C2, C3, C4 }; wherein: the rotation axes of the input shaft I, the third intermediate shaft IV and the planet carrier 9 are superposed; the input shaft I is connected with a fixed gear 4; the first intermediate shaft II is connected with a fixed gear 1, a fixed gear 2, an idler gear 3 and a clutch C1; the driving end of the clutch C1 is connected with the fixed gear 2, and the driven end of the clutch C1 is connected with the idler gear 3; the second intermediate shaft III is connected with a fixed gear 7, an idler gear 8 and a clutch C3; the driving end of the clutch C3 is connected with the fixed gear 7, and the driven end of the clutch C3 is connected with the idler gear 8; the third countershaft shaft IV is connected with a fixed gear 6, an idler gear 5, a clutch C2 and a clutch C4.)

1. A novel six-gear transmission is characterized in that: the planetary gear comprises an input shaft (I), a first intermediate shaft (II), a second intermediate shaft (III), a third intermediate shaft (IV) and a planet carrier (9); idler gears {3, 5, 8} and fixed gears {1, 2, 4, 6, 7}, clutches { C1, C2, C3, C4 }; wherein: the rotation axes of the input shaft (I), the third intermediate shaft (IV) and the planet carrier (9) are superposed;

the input shaft (I) is connected with a fixed gear (4);

the first intermediate shaft (II) is connected with a fixed gear (1), a fixed gear (2), an idler gear (3) and a clutch (C1); the driving end of the clutch (C1) is connected with the fixed gear (2), and the driven end of the clutch (C1) is connected with the idler gear (3);

the second intermediate shaft (III) is connected with a fixed gear (7), an idler gear (8) and a clutch (C3); the driving end of the clutch (C3) is connected with the fixed gear (7), and the driven end of the clutch (C3) is connected with the idler gear (8);

the third intermediate shaft (IV) is connected with a fixed gear (6), an idler gear (5), a clutch (C2) and a clutch (C4); the driving ends of the clutch (C2) and the clutch (C4) are connected with the fixed gear (6), the driven end of the clutch (C2) is connected with the idler gear (5), and the driven end of the clutch (C4) is connected with the planet carrier (9);

the planet carrier (9) is connected with a sun gear (10), a planet gear (11), an inner gear ring (12) and a brake (B1); when the brake (B1) is closed, the inner gear ring (12) and the box body frame are fixedly connected into a whole and cannot move relatively; when the brake B1 is off, the ring gear 12 can rotate relative to the frame;

the fixed gear (4) is respectively meshed with the fixed gear (1) and the fixed gear (7); the fixed gear (2) is meshed with the free gear (5); the fixed gear (6) is respectively meshed with the idle gear (3) and the idle gear (8).

2. The new six speed transmission of claim 1 wherein: comprises six gears, wherein power is input by an input shaft (I) and output by a planet carrier 9.

Technical Field

The invention belongs to the field of transmissions and relates to a novel six-gear transmission.

Background

The oil and gas fracturing operation is to fracture the bottom rock to form cracks and enlarge pores under the hydraulic action of high flow and high pressure, so that the oil and gas yield is increased. In order to obtain high-pressure water power, the output power of the engine is decelerated and torque-increased through a gearbox, and a fracturing pump is driven to pump mixed water into a well.

The transmission used in the fracturing pump system is a heavy-duty transmission, and comprises a fixed shaft transmission and a planetary transmission, most of the transmissions are improved from the transmission of a heavy-duty vehicle such as an engineering truck, the requirements of fracturing operation cannot be well met, and some problems occur in use. The planetary transmission realizes more gears, but the use of the gears in the fracturing operation is relatively limited, the gear shifting is not frequent, and the control difficulty and the cost are increased due to excessive gears; the service life and the maintenance of the planetary speed reducer are relatively difficult. The output power of the fracturing system is very high, and the directly improved heavy vehicle gearbox can not well match the requirements of the fracturing operation working conditions no matter a dead axle gearbox or a planetary gearbox. The fracturing operation urgently needs a professional gearbox which has the advantages of small shifting flow fluctuation, stable shifting and large speed ratio range.

Disclosure of Invention

The invention aims to: a novel six-gear transmission is provided, and the defects of the problems are overcome.

The technical scheme adopted by the invention is as follows:

a novel six-gear transmission comprises an input shaft I, a first intermediate shaft II, a second intermediate shaft III, a third intermediate shaft IV and a planet carrier 9; idler gears {3, 5, 8} and fixed gears {1, 2, 4, 6, 7}, clutches { C1, C2, C3, C4 }; wherein: the rotation axes of the input shaft I, the third intermediate shaft IV and the planet carrier 9 are superposed; the input shaft I is connected with a fixed gear 4; the first intermediate shaft II is connected with a fixed gear 1, a fixed gear 2, an idler gear 3 and a clutch C1; the driving end of the clutch C1 is connected with the fixed gear 2, and the driven end of the clutch C1 is connected with the idler gear 3; the second intermediate shaft III is connected with a fixed gear 7, an idler gear 8 and a clutch C3; the driving end of the clutch C3 is connected with the fixed gear 7, and the driven end of the clutch C3 is connected with the idler gear 8; the third intermediate shaft IV is connected with a fixed gear 6, an idler gear 5, a clutch C2 and a clutch C4; the driving ends of the clutch C2 and the clutch C4 are connected with the fixed gear 6, the driven end of the clutch C2 is connected with the idler gear 5, and the driven end of the clutch C4 is connected with the planet carrier 9; the planet carrier 9 is connected with a sun gear 10, a planet gear 11, an inner gear ring 12 and a brake B1; when the brake B1 is closed, the inner gear ring 12 is fixedly connected with the box body frame into a whole and cannot move relatively; when brake B1 is disengaged, ring gear 12 can rotate relative to the frame. The fixed gear 4 is meshed with the fixed gear 1 and the fixed gear 7 respectively; the fixed gear 2 is meshed with the idle gear 5; the fixed gear 6 is respectively meshed with the idle gear 3 and the idle gear 8. Each fixed gear and the shaft on which the fixed gear is arranged cannot move relatively; each idler gear is rotatable but immovable relative to the shaft on which it is located.

The scheme is adopted for solving the defects of the traditional problem. Specifically, the method comprises the following steps: the rotation axes of the input shaft I, the intermediate shaft IV and the planet carrier 9 coincide.

When the clutch C1 is closed, the idler gear 3 and the intermediate shaft II are fixedly connected into a whole and cannot move relatively; when the clutch C1 is disengaged, the idler gear 3 can rotate relative to the countershaft II.

When the clutch C2 is closed, the idler gear 5 and the input shaft I are fixedly connected into a whole and cannot move relatively; when the clutch C2 is disengaged, the idler gear 5 can rotate relative to the input shaft I.

When the clutch C3 is closed, the idler gear 8 and the intermediate shaft III are fixedly connected into a whole and cannot move relatively; when the clutch C3 is disengaged, the idler gear 8 can rotate relative to the countershaft III.

When the clutch C4 is closed, the planet carrier 9 and the input shaft I are fixedly connected into a whole and cannot move relatively; when the clutch C4 is disengaged, the planet carrier 9 can rotate relative to the intermediate shaft I.

When the brake B1 is closed, the inner gear ring 12 is fixedly connected with the frame into a whole and cannot move relatively; when brake B1 is disengaged, ring gear 12 can rotate relative to the frame.

Further, as a preferable embodiment: comprises six gears, wherein power is input by an input shaft I and is output by a planet carrier 9.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

according to the invention, the transmission efficiency of the gearbox is high, the manufacturing and maintenance cost is low, the structure is compact, the gear shifting flow fluctuation is small, the gear shifting is stable, the speed ratio coverage range is large, different operation conditions can be met, and the operation efficiency of the fracturing equipment is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:

FIG. 1 is a schematic illustration of the transmission scheme of the present invention;

the labels in the figure are: {3, 5, 8} -idler, {1, 2, 4, 6, 7} -fixed gear, I-input shaft, II-first countershaft, III-second countershaft, IV-third countershaft, { C1, C2, C3, C4} -clutch, 9-planet carrier, 10-sun gear, 11-planetary gear, 12-ring gear, B1-brake.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.