阅读说明：本技术 一种变速箱测试台驱动总成一体化装置 (Gearbox testboard drive assembly integrated device ) 是由 杨超 朱会娟 宗鹏 郑树德 于 2020-06-04 设计创作，主要内容包括：本发明公开一种变速箱测试台驱动总成一体化装置,包括增速箱,所述增速箱内安装有垂直布置并相啮合的齿轮所构成的齿轮副；输入齿轮设在上方,输出齿轮设在下方；所述输出齿轮与扭矩传感器相连,所述扭矩传感器通过联轴器连接同轴布置的高速主轴,所述高速主轴输出动力至被试变速箱；所述高速主轴与增速箱的下箱体为一体化结构,所述下箱体内底面设置有扭矩传感器底座,所述高速主轴两侧开有贯通的避让孔,以使被试变速箱同侧输出轴能通过伸出与加载电机连接。本发明提供的一种新能源变速箱测试台驱动总成一体化装置,其结构设计科学合理,能够满足新能源变速箱在性能测试时的固定需求,实用性强,具有重大的生产实践意义。(The invention discloses a gearbox test board drive assembly integrated device which comprises a speed increasing box, wherein a gear pair formed by vertically arranged and meshed gears is arranged in the speed increasing box; the input gear is arranged above, and the output gear is arranged below; the output gear is connected with a torque sensor, the torque sensor is connected with a coaxially arranged high-speed main shaft through a coupler, and the high-speed main shaft outputs power to a tested gearbox; the high-speed main shaft and the lower box body of the speed increasing box are of an integrated structure, a torque sensor base is arranged on the inner bottom surface of the lower box body, and through avoiding holes are formed in two sides of the high-speed main shaft, so that an output shaft on the same side of the tested speed changing box can be connected with a loading motor through stretching out. The drive assembly integrated device for the new energy gearbox test board provided by the invention is scientific and reasonable in structural design, can meet the fixing requirement of the new energy gearbox during performance test, is strong in practicability and has great production practice significance.)

1. A gearbox test board drive assembly integrated device comprises a speed increasing box and is characterized in that a gear pair formed by vertically arranged and meshed gears is installed in the speed increasing box; the input gear is arranged above, and the output gear is arranged below; the output gear is connected with a torque sensor, the torque sensor is connected with a coaxially arranged high-speed main shaft through a coupler, and the high-speed main shaft outputs power to a tested gearbox; the high-speed main shaft and the lower box body of the speed increasing box are of an integrated structure, a torque sensor base is arranged on the inner bottom surface of the lower box body, and through avoiding holes are formed in two sides of the high-speed main shaft, so that an output shaft on the same side of the tested speed changing box can be connected with a loading motor through stretching out.

2. The gearbox test stand drive assembly integrated unit of claim 1, wherein the input gear is connected to a drive motor, the drive motor being disposed above an exterior side of the gearbox.

3. The gearbox test bench drive assembly integrated device of claim 1, wherein the gearbox has a detachable upper box body covering the input gear and matched with the lower box body through bolts, the upper box body is arranged on one side of the upper part of the lower box body, an output gear mounting space is formed on one side of the inner part of the lower box body and a side plate of the gearbox through a partition plate, and the upper box body is fittingly mounted above the output gear mounting space.

4. The gearbox test bench drive assembly integrated device of claim 1, wherein the avoiding holes comprise a left avoiding hole and a right avoiding hole, and the avoiding holes are arranged on two sides of the shaft hole of the high-speed spindle.

5. The gearbox test bench drive assembly integrated device of claim 1, wherein the output end of the high-speed main shaft is fixed with a tested gearbox connecting flange arranged outside the speed increasing box.

6. The gearbox test bench drive assembly integrated unit of claim 1, wherein the input gear of the gear pair is meshed with the output gear or meshed with the output gear through an intermediate gear.

Technical Field

The invention relates to the technical field of gearbox testing, in particular to a gearbox test board drive assembly integrated device.

Background

In order to ensure the working performance of the developed new energy automobile gearbox, the new energy gearbox needs to be tested. During testing, the new energy transmission is fixed on a support in advance, the driving motor and the gearbox drive the simulated transmission to work in a vehicle, and corresponding performance tests (such as efficiency tests, gear shifting tests, durability tests and the like) are performed on the transmission through various external specific test devices (such as a torque sensor, a loading motor and the like).

However, the drive assembly of the existing test bench adopts a split assembly mode, generally, the drive assembly is large in size, the space of a base of a drive motor is limited, the contact area is small after installation, and the requirements of vibration and strength in the transmission process cannot be met. Therefore, the insecurity in the testing process of the new energy automobile gearbox is increased, inconvenience is brought to user testing work, the practicability is poor, and the performance testing requirement of the new energy automobile gearbox cannot be met.

Disclosure of Invention

The invention aims to provide a transmission test bench drive assembly integrated device which is scientific and reasonable in structural design, can meet the drive requirements of transmissions of various types and structures (with output shafts arranged on the left or the right) in performance test, and is high in practicability.

The technical scheme adopted for realizing the purpose of the invention is as follows:

a gearbox test board drive assembly integrated device comprises a speed increasing box, wherein a gear pair formed by vertically arranged and meshed gears is installed in the speed increasing box; the input gear is arranged above, and the output gear is arranged below; the output gear is connected with a torque sensor, the torque sensor is connected with a coaxially arranged high-speed main shaft through a coupler, and the high-speed main shaft outputs power to a tested gearbox; the high-speed main shaft and the lower box body of the speed increasing box are of an integrated structure, a torque sensor base is arranged on the inner bottom surface of the lower box body, and through avoiding holes are formed in two sides of the high-speed main shaft, so that an output shaft on the same side of the tested speed changing box can be connected with a loading motor through stretching out.

The input gear is connected with a driving motor, and the driving motor is arranged above one side of the outside of the speed increasing box.

The gearbox is provided with an upper box body which is detachably covered outside the input gear and is connected with a bolt matched with the lower box body, the upper box body is arranged on one side of the upper part of the lower box body, one side of the inner part of the lower box body forms an output gear mounting space by utilizing a partition plate and a side plate of the gearbox, and the upper box body is mounted above the output gear mounting space in a matching manner.

Preferably, the avoiding holes comprise a left avoiding hole and a right avoiding hole which are arranged on two sides of the shaft hole of the high-speed main shaft.

Preferably, the output end of the high-speed main shaft is fixed with a connecting flange of a tested gearbox arranged outside the speed increasing box.

Preferably, the input gear of the gear pair is meshed with the output gear, or meshed with the output gear through an intermediate gear.

According to the integrated device for the drive assembly of the new energy gearbox test board, the gear pair is vertically arranged, the torque sensor is connected with the gear pair and then connected with the high-speed spindle and installed in the speed increasing box, the structure is compact, and an integrated structure is formed, so that the volume of the drive assembly is reduced, the space of a base of a drive motor is increased, the fixing requirement of the new energy gearbox during performance test can be met, the practicability is high, and the integrated device has great production practice significance.

Drawings

FIG. 1 is an isometric view of a new energy transmission testing table drive assembly integrated device provided by the invention;

fig. 2 is a sectional view of the new energy transmission testing table drive assembly integrated device provided by the invention:

FIG. 3 is a front view of the new energy gearbox test bed drive assembly integrated device provided by the invention after being connected with a drive motor and a tested gearbox;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic diagram of another embodiment of a gearbox test stand drive assembly integration.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-4, the integrated device of the drive assembly of the gearbox testboard of the invention comprises a speed-increasing box 1 which is substantially rectangular, wherein one side in the speed-increasing box is provided with a gear pair which is composed of a pair of input gears 12 and output gears 13 which are vertically arranged and meshed with each other; the input gear is arranged above the output gear, and the output gear is arranged below the input gear; the output gear 13 is connected with a torque sensor 2 which is arranged in the box body and positioned on the inner side of a gear pair, the torque sensor 2 is connected with a high-speed spindle 4 which is coaxially arranged through a coupler 3, the high-speed spindle is arranged on the inner side of the torque sensor, the high-speed spindle 4 can output power to a connected tested gearbox 200, and the tested gearbox is arranged on one side of the speed increasing box opposite to the gear pair; the high-speed main shaft is of an integrated structure with the lower box body of the speed increasing box, a torque sensor base 16 is arranged in the speed increasing box 1, and a through avoiding hole is formed in the high-speed main shaft output side plate body of the speed increasing box 1, so that an output shaft (not shown) on the same side of the tested gearbox 200 can be connected with a loading motor (not shown) through extending.

In the invention, the driving motor is matched with the gearbox, and the gearbox is equivalent to the driving motor in a new energy vehicle and is used for driving the tested gearbox, and the gearbox is mainly used for increasing the output rotating speed of the driving motor on the test bed so as to meet the input requirement of the tested piece.

For the invention, the speed increasing box 1, the torque sensor 2 and the high-speed main shaft 4 play a role of power transmission. The torque sensor 2 provides real-time power parameters such as torque and rotating speed of the driving assembly input to the tested gearbox.

In the present invention, the high-speed spindle 4, the torque sensor 2, and the output gear 13 are mounted on the lower case 14 of the gearbox, and power is transmitted from the input gear 12 to the high-speed spindle 4.

The input gear 12 is connected to a drive motor 100, which is disposed above the outside of the gearbox 1.

The gear pair is arranged in a gear pair protection shell, the gear pair box body is provided with a lower box body and a detachable upper box body which is connected with the lower box body through a bolt, one side of the inner space of the lower box body 14 is matched with one side plate of the speed increasing box 1 through a partition plate 15 to form an installation space 19 of an output gear, and the right side plate shown in figure 2 is matched, so that the output gear is installed, the upper box body is installed above the installation space of the output gear in a matching mode, the installation shell of the gear pair is formed, or the installation space of the gear pair is formed, and therefore the input gear and the output gear are installed in the installation space of the gear pair formed by connecting the upper box body with the installation space of the output gear.

The partition plate 15 and the side plate are provided with mounting holes for an output gear, protruding stepped shaft portions at two ends of the output gear are mounted in the mounting holes through bearing assemblies 17, one end of the outer side of the partition plate is further provided with an outer end cover (not shown), the outer side of the bearing assembly is provided with an inner end cover (not shown), the inner side of the bearing assembly is provided with an inner end cover, the center of the inner end cover is provided with a hole, and the protruding stepped shaft portions on the inner side of the inner end cover extend out to be connected.

The inner end cover and the outer end cover are respectively fixedly connected with the partition plate and the side plate of the box body through bolts, and related components are not marked as shown in fig. 2. The inner space of the upper case cover 11 is a U-groove-shaped space structure, two ends of the upper case cover correspond to the shaft mounting holes with the input gears, and the upper case cover is provided with a bearing assembly 17, as shown in fig. 2, the outer side of the inner side stepped shaft end is provided with a closed end cover 7 through a bolt, and the outer side stepped shaft end is axially provided with a motor connecting hole 18 so as to be conveniently connected with the power output shaft of the driving motor 100.

Preferably, the avoidance hole further comprises a left avoidance hole 5 and a right avoidance hole 6 which are arranged on two sides of the shaft hole of the high-speed spindle, so that the working condition that the output shaft is arranged on the left or on the right is adapted, and the requirements of different tested gearboxes are adapted.

The hole patterns of the left avoidance hole and the right avoidance hole can be rectangular, circular or other body geometric shapes, and are not limited.

Preferably, the output end of the high-speed main shaft is fixed with a tested gearbox connecting flange 20 arranged outside the gearbox.

The middle of the tested gearbox connecting flange 20 is provided with a connecting hole of a high-speed main shaft, a plurality of bolt holes with different positions are formed in the connecting hole, and the bolt holes are arranged on the outer side of the connecting hole of the high-speed main shaft and arranged in a surrounding mode so as to be conveniently connected with different tested gearboxes 200 to be tested.

Further, fixed part 21 that forms on two opposite side in bottom of acceleration rate case, fixed part and box form L shape structure, have the fixed orifices on the fixed part to make things convenient for fixed mounting acceleration rate case on the fixing base.

Referring to fig. 5, the figure shows another embodiment of the drive assembly integration device of the new energy transmission testing platform, and the gear pair of the drive assembly integration device of the new energy transmission testing platform is different from the embodiment shown in fig. 1 in that the gear pair has three gears, wherein an intermediate gear or an idler gear is arranged between an input gear and an output gear, and the three gears are meshed with each other to realize power transmission.

Compared with the prior art, the drive assembly integrated device for the new energy gearbox test board provided by the invention has the advantages that the structural design is scientific and reasonable, the fixing requirement of the new energy gearbox during performance test can be met, the practicability is high, and the production practice significance is great.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.