CN219838434U - Vehicle transmission box body, power assembly and vehicle - Google Patents

Abstract

The utility model discloses a vehicle transmission box body, a power assembly and a vehicle, which comprise a plurality of sub-shells, wherein the plurality of sub-shells are arranged along the front-back direction of the vehicle and are sequentially connected; the vehicle transmission box body is provided with a driving motor shaft hole, a driving shaft hole, an engine shaft hole, a generator shaft hole and a first half shaft hole, wherein the driving motor shaft hole, the driving shaft hole, the engine shaft hole and the generator shaft hole all extend along the front-back direction of the vehicle, the first half shaft hole extends along the left-right direction of the vehicle, the driving shaft hole is respectively communicated with the driving motor shaft hole, the engine shaft hole and the first half shaft hole, and the generator shaft hole is communicated with the engine shaft hole. The vehicle transmission box body is constructed as a sectional box body, the size of the vehicle in the front-rear direction is easier to control, and the vehicle transmission box body has the advantages of simple manufacturing process, low processing cost and the like.

Description

Vehicle transmission box body, power assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicle power, in particular to a vehicle transmission box body, a power assembly and a vehicle.

Background

The longitudinal transmission generally has a driving motor and a generator, the driving motor drives the vehicle to run by transmitting power between a driving shaft and a differential, the generator is in driving connection with an engine and generates electricity under the driving of the engine, but the driving motor, the generator and the driving shaft of the longitudinal transmission in the related art are installed in the same housing, so that the processing difficulty and the cost of the transmission are high, and the required arrangement space between the transmission and the differential is large.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a vehicle transmission case constructed as a segmented case, which is easier to control in the size of the vehicle in the front-rear direction, and has advantages of simple manufacturing process, low processing cost, and the like.

The utility model further provides a power assembly with the vehicle transmission box body.

The utility model further provides a vehicle with the power assembly.

In order to achieve the above object, an embodiment according to a first aspect of the present utility model proposes a vehicle transmission case including a plurality of sub-cases arranged in a front-rear direction of a vehicle and connected in sequence; the vehicle transmission box body is provided with a driving motor shaft hole, a driving shaft hole, an engine shaft hole, a generator shaft hole and a first half shaft hole, wherein the driving motor shaft hole, the driving shaft hole, the engine shaft hole and the generator shaft hole all extend along the front-back direction of the vehicle, the first half shaft hole extends along the left-right direction of the vehicle, the driving shaft hole is respectively communicated with the driving motor shaft hole, the engine shaft hole and the first half shaft hole, and the generator shaft hole is communicated with the engine shaft hole.

The vehicle transmission box body provided by the embodiment of the utility model is constructed as a sectional box body, the size of the vehicle in the front-rear direction is easier to control, and the vehicle transmission box body has the advantages of simple manufacturing process, low processing cost and the like.

According to some embodiments of the present utility model, the plurality of sub-housings include a first housing, a second housing, and a third housing, the first housing, the second housing, and the third housing being sequentially connected in a front-rear direction of the vehicle; the driving motor shaft hole is constructed in the third box, the driving shaft hole is constructed in the first box and the third box, the engine shaft hole is constructed in the first box and the second box, the generator shaft hole is constructed in the second box, and the first half shaft hole is constructed in the first box.

According to some embodiments of the present utility model, the first case and the second case are configured with clutch shaft holes extending in a front-rear direction of the vehicle, the clutch shaft holes communicating with the engine shaft hole and the drive shaft hole, respectively.

According to some embodiments of the utility model, the first housing is configured with a differential cavity for mounting a differential, the differential cavity being in communication with the driveshaft aperture and the first half-shaft aperture, respectively.

According to some embodiments of the utility model, the vehicle transmission case further includes: the differential cover plate is arranged on the first box body and is suitable for sealing the differential to the differential cavity, and the differential cover plate is provided with a second half-shaft hole communicated with the differential cavity; the first half axle hole and the second half axle hole are positioned on two opposite sides of the differential cavity in the left-right direction of the vehicle, and the central axis of the first half axle hole and the central axis of the second half axle hole are coincident.

According to some embodiments of the utility model, the front side of the first housing is configured with a flywheel slot adapted to mount a flywheel on an output shaft of the engine, the engine shaft hole extending through a slot bottom of the flywheel slot, the flywheel slot being located above the first half shaft hole.

According to some embodiments of the utility model, the vehicle transmission case further includes: and the oil pan is arranged at the bottom of the second box body and is used for containing lubricating oil.

According to some embodiments of the utility model, the second case is configured with a mechanical pump gear shaft hole extending in a front-rear direction of the vehicle and located below the generator shaft hole, the mechanical pump gear shaft hole being in communication with the generator shaft hole, and the second case is mounted with a mechanical pump for pumping the lubricating oil in the oil pan.

According to some embodiments of the utility model, the first and second cases are configured with a mechanical pump idler shaft hole extending in a front-rear direction of the vehicle, the mechanical pump idler shaft hole being located below the generator shaft hole and above the mechanical pump gear shaft hole, the mechanical pump idler shaft hole being in communication with the mechanical pump gear shaft hole and the generator shaft hole, respectively.

According to some embodiments of the utility model, a side of the first housing is configured with a filter-press cavity for mounting a filter-press in communication with the mechanical pump for filtering lubricant pumped by the mechanical pump.

According to some embodiments of the utility model, the front side of the first housing is configured with a plate heat exchanger mounting surface for mounting a plate heat exchanger for exchanging heat with the lubricating oil filtered by the press filter.

According to some embodiments of the utility model, the side face of the second housing is configured with a hydraulic mounting cavity, and at least a portion of the hydraulic module is mounted in the hydraulic mounting cavity and connected to the pressure filter for adjusting the flow direction of the lubricating oil after filtration by the pressure filter.

According to some embodiments of the utility model, the first tank is configured with a first oil passage, the second tank is configured with a second oil passage, one end of the first oil passage penetrates through the rear side surface of the first tank, one end of the second oil passage penetrates through the front side surface of the second tank, one end of the first oil passage is communicated with one end of the second oil passage, the other end of the first oil passage is communicated with the filter press, and the other end of the second oil passage is communicated with the mechanical pump.

According to some embodiments of the utility model, the second housing is configured with a clutch oil passage, one end of which is connected with the hydraulic module and the other end of which is adapted to be connected with the clutch, the hydraulic module controlling the clutch to switch between the engaged state and the disengaged state by controlling the oil pressure of the clutch oil passage.

According to some embodiments of the utility model, a third oil passage is configured at a rear side of the second tank, the third oil passage extends in an up-down direction of the vehicle, an upper end of the third oil passage is connected with the hydraulic module, the third tank is configured with a fourth oil passage, the fourth oil passage is connected with a lower end of the third oil passage, and the hydraulic module distributes lubricating oil into the third tank through the third oil passage and the fourth oil passage.

According to some embodiments of the utility model, the vehicle transmission case further includes: the speed reducer cover plate is arranged on the rear side face of the second box body, and the shaft hole of the driving motor penetrates through the speed reducer cover plate.

According to some embodiments of the utility model, the vehicle transmission case further includes: the generator cover plate is arranged on the rear side face of the second box body and is covered on the generator mounting groove, and the generator shaft hole penetrates through the generator cover plate.

According to some embodiments of the utility model, the vehicle transmission case further includes: the driving motor cover plate is arranged on the rear side face of the third box body and is covered on the driving motor mounting groove, and the driving shaft hole penetrates through the driving motor cover plate.

According to some embodiments of the utility model, the first and second cases are configured with a generator idler shaft hole extending in a front-rear direction of the vehicle, the generator idler shaft hole communicating with the engine shaft hole and the generator shaft hole, respectively.

According to some embodiments of the utility model, the second housing has a skid point on its outer peripheral surface for mounting and dismounting the vehicle transmission housing on the vehicle.

According to some embodiments of the utility model, the left side of the third housing is provided with a suspension point for mounting the vehicle transmission housing to the vehicle, the suspension point being adjacent to the underside edge as well as the rear side edge of the third housing.

According to a second aspect of the present utility model, there is provided a powertrain comprising: according to a first aspect of the utility model, a vehicle transmission housing is provided; an engine, an input shaft of which is rotatably mounted in an engine shaft hole; the driving motor is arranged in the vehicle transmission box body, and a motor shaft of the driving motor is rotatably arranged in the driving motor shaft hole; the generator is arranged in the gearbox of the vehicle, a motor shaft of the generator is rotatably arranged in the shaft hole of the generator, and the motor shaft of the generator is in transmission connection with an output shaft of the engine; the driving shaft is arranged in the vehicle transmission box body and is rotatably arranged in a driving shaft hole, and the driving shaft is respectively in transmission connection with an output shaft of the engine and a motor shaft of the driving motor; the first half shaft is rotatably arranged in the first half shaft hole and is in transmission connection with the driving shaft.

According to a third aspect of the present utility model, an embodiment is presented of a vehicle comprising a powertrain according to the second aspect of the present utility model.

The vehicle according to the embodiment of the third aspect of the present utility model has advantages of simple manufacturing process, low processing cost, and the like by using the powertrain of the embodiment of the second aspect of the present utility model.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a vehicular transmission case according to an embodiment of the present utility model.

Fig. 2 is an exploded view of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of a first case of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 4 is another perspective structural schematic view of a first case of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a second case of the vehicular transmission case according to the embodiment of the utility model.

Fig. 6 is another perspective structural schematic diagram of a second case of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 7 is a schematic view of yet another perspective structure of a second case of the vehicular transmission case according to the embodiment of the utility model.

Fig. 8 is a schematic structural view of a third case of the vehicular transmission case according to the embodiment of the utility model.

Fig. 9 is another perspective structural schematic diagram of a third case of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 10 is a schematic structural view of a decelerator cover plate of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 11 is a schematic structural view of a generator cover plate of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 12 is a schematic structural view of a driving motor cover plate of a vehicle transmission case according to an embodiment of the present utility model.

Fig. 13 is a schematic structural view of a differential cover plate of a vehicle transmission case according to an embodiment of the present utility model.

FIG. 14 is a schematic view of a transmission of a vehicle transmission housing according to an embodiment of the utility model.

Reference numerals:

a vehicle transmission case 1,

First case 100, drive shaft hole 101, engine shaft hole 102, clutch shaft hole 103, mechanical pump idler shaft hole 104, generator idler shaft hole 105, differential gear cavity 110, differential gear 111, first half shaft hole 120, first half shaft 121, flywheel groove 130, filter press cavity 140, plate-change mounting surface 150, first oil passage 160, and second oil passage 160,

The second box 200, the generator shaft hole 201, the mechanical pump gear shaft hole 202, the oil pan 210, the second oil duct 220, the clutch oil duct 230, the hydraulic installation cavity 240, the third oil duct 250, the generator outlet cavity 260, the skid-mounted point 270, the assembly positioning process hole 271, the generator installation groove 280, the speed reducer installation groove 290,

A third box 300, a driving motor shaft hole 301, a driving motor outlet cavity 310, a suspension point 320, a driving motor mounting groove 330,

Drive motor 400, generator 500, generator idler 510, take-up gear 520, differential cover 600, second half shaft hole 610,

A drive shaft 710, a drive shaft section 711, an electric shaft section 712, a first reduction gear 713, a second reduction gear 714, a clutch 720,

The decelerator cover 800 and the generator cover 810 drive the motor cover 820 and the motor controller 900.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, "plurality" means two or more.

A powertrain according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

The powertrain includes a vehicle transmission housing 1, an engine, a drive motor 400, a generator 500, a drive shaft 710, and a first axle 121. The drive motor 400, the generator 500, the drive shaft 710 and the first half shaft 121 are mounted to the vehicle transmission case 1.

A vehicular transmission case 1 according to an embodiment of the utility model will be described first with reference to the drawings.

As shown in fig. 1 to 14, the vehicular transmission case 1 according to the embodiment of the utility model includes a plurality of sub-cases arranged in the front-rear direction of the vehicle and connected in sequence, the vehicular transmission case 1 is configured with a drive motor shaft hole 301, a drive shaft hole 101, an engine shaft hole 102, a generator shaft hole 201, and a first half shaft hole 120, the drive motor shaft hole 301, the drive shaft hole 101, the engine shaft hole 102, the generator shaft hole 201 each extending in the front-rear direction of the vehicle, the first half shaft hole 120 extending in the left-right direction of the vehicle, the drive shaft hole 101 communicating with the drive motor shaft hole 301, the engine shaft hole 102, and the first half shaft hole 120, respectively, the generator shaft hole 201 communicating with the engine shaft hole 102.

For example, the plurality of sub-housings include a first housing 100, a second housing 200, and a third housing 300, the first housing 100, the second housing 200, and the third housing 300 are sequentially connected in the front-rear direction of the vehicle, a driving motor shaft hole 301 is configured in the third housing 300, a driving shaft hole 101 is configured in the first housing 100 and the third housing 300, a generator shaft hole 201 is configured in the second housing 200, and a first half shaft hole 120 is configured in the first housing 100.

In addition, an input shaft of the engine is rotatably mounted in the engine shaft hole 102, a motor shaft of the driving motor 400 is rotatably mounted in the driving motor shaft hole 301, a motor shaft of the generator 500 is rotatably mounted in the generator shaft hole 201, a motor shaft of the generator 500 is in transmission connection with an output shaft of the engine, a driving shaft 710 is rotatably mounted in the driving shaft hole 101, the driving shaft 710 is respectively in transmission connection with an output shaft of the engine and a motor shaft of the driving motor 400, and the first half shaft 121 is rotatably mounted in the first half shaft hole 120 and in transmission connection with the driving shaft 710.

Thus, when the engine alone drives the first half shaft 121 to rotate through the driving shaft 710, the vehicle is driven by the power output from the engine, and the vehicle is in the engine direct-drive mode; when the driving motor 400 drives the first half shaft 121 to rotate independently through the driving shaft 710, the vehicle is driven by the power output by the driving motor 400, and the vehicle is in the electric-only mode at this time; when the engine and the driving motor 400 jointly drive the first half shaft 121 to rotate through the driving shaft 710, the vehicle is driven by the power output by the driving motor 400 and the engine, at this time, the vehicle is in a hybrid mode, the engine can drive the generator 500 to generate electricity, and the electricity generated by the generator 500 can charge a power battery of the vehicle or supply power to the driving motor 400.

According to the vehicle transmission case 1 provided by the embodiment of the utility model, the plurality of sub-cases are sequentially connected along the front-rear direction of the vehicle, and the vehicle transmission case 1 adopts the sectional case, so that compared with the case of the vehicle transmission case which is manufactured as a whole, the sectional case is simple in manufacturing process and compact in arrangement structure, the overall size of the vehicle transmission case 1 is easier to control, the mass production feasibility is high, the processing cost is low, the strength is reliable, the longitudinal arrangement of the vehicle transmission case 1 is facilitated, and the vehicle transmission case 1 is beneficial to the whole vehicle arrangement and the platform scheme while the light-weight requirement is met.

In addition, the vehicle transmission case 1 is configured with a drive motor shaft hole 301, a drive shaft hole 101, an engine shaft hole 102, a generator shaft hole 201, and a first half shaft hole 120, the drive motor shaft hole 301, the drive shaft hole 101, the engine shaft hole 102, and the generator shaft hole 201 all extend in the front-rear direction of the vehicle, the first half shaft hole 120 extends in the left-right direction of the vehicle, the drive shaft hole 101 communicates with the drive motor shaft hole 301, the engine shaft hole 102, and the first half shaft hole 120, respectively, and the generator shaft hole 201 communicates with the engine shaft hole 102.

Thus, the vehicle transmission case 1 integrates the function of the housing of the first half shaft 121, greatly reduces the arrangement space required by the vehicle transmission case 1, and facilitates the switching of the three modes of the engine, the drive motor 400 and the generator 500 between the series mode and the parallel mode by the arrangement of the drive motor shaft hole 301, the drive shaft hole 101, the engine shaft hole 102 and the generator shaft hole 201, and the drive shaft hole 101 extends in the front-rear direction of the vehicle, and the first half shaft hole 120 extends in the left-right direction of the vehicle, facilitating the longitudinal arrangement of the vehicle transmission case 1.

As such, the vehicle transmission case 1 according to the embodiment of the utility model is constructed as a segmented case, the dimension in the front-rear direction of the vehicle is easier to control, and there are advantages of simple manufacturing process, low processing cost, and the like.

According to some embodiments of the present utility model, the first and second cases 100 and 200 are configured with a generator idler shaft bore 105, a generator idler 510 is rotatably mounted to the generator idler shaft bore 105, and an engine output shaft is drivingly connected to an output shaft of the generator 500 through the generator idler 510.

According to some embodiments of the present utility model, as shown in fig. 2, 4, 13 and 14, the first casing 100 is configured with a differential cavity 110, the differential cavity 110 communicates with the driving shaft hole 101 and the first half shaft hole 120, respectively, and the differential 111 is installed in the differential cavity 110.

For example, the outer peripheral surface of the differential 111 is provided with large bevel gears, one end of the first half shaft 121 facing the differential 111 is provided with small bevel gears, and power between the differential 111 and the first half shaft 121 can be transmitted by 90 ° through the cooperation between the large bevel gears and the small bevel gears. The center axis of the differential 111 can extend in the left-right direction of the vehicle, and the first casing 100 integrates the function of the casing of the differential 111, further improving the space utilization, and the integration of the vehicle transmission casing 1.

According to some embodiments of the present utility model, as shown in fig. 2, 4, 13 and 14, the vehicle transmission case 1 further includes a differential cover 600 mounted to the first case 100 and adapted to cover the differential 111 to the differential cavity 110, the differential cover 600 being provided with a second half shaft hole 610 communicating with the differential cavity 110, wherein the first half shaft hole 120 and the second half shaft hole 610 are located at opposite sides of the differential cavity 110 in a left-right direction of the vehicle, and a central axis of the first half shaft hole 120 and a central axis of the second half shaft hole 610 coincide.

In this way, the differential cover 600 can function to seal the differential cavity 110, and the second axle shaft can be in driving connection with the differential 111 through the second axle half bore 610.

According to some embodiments of the present utility model, as shown in fig. 4, the front side of the first case 100 is configured with a flywheel groove 130, the flywheel is mounted on the flywheel groove 130 and is adapted to be sleeved on the output shaft of the engine, the engine shaft hole 102 penetrates through the bottom of the flywheel groove 130, and the flywheel groove 130 is located above the differential 111.

Because the output shaft of the engine is the crankshaft, the inertia of the output shaft of the engine can be balanced by sleeving the flywheel, so that the rotation of the output shaft of the engine is more stable, the first box 100 integrates the function of the flywheel shell, the integration level of the first box 100 is improved, the number of parts is reduced, the production cost is reduced, and the space utilization rate is improved.

According to some embodiments of the present utility model, as shown in fig. 4, a side of the first casing 100 is configured with a filter press chamber 140, and a side of the second casing 200 is configured with a hydraulic mounting chamber 240. The oil pan 210 is installed in the bottom of the second box 200 for hold lubricating oil, and at least a portion of the mechanical pump is installed in the second box 200 and is connected with the generator 500 transmission, is used for pumping the lubricating oil that the oil pan held, and the filter press is installed in the filter press cavity 140 and is connected with the mechanical pump, is used for filtering the lubricating oil that the mechanical pump pumps, and at least a portion of the hydraulic module is installed in the hydraulic installation cavity 240 and is connected with the filter press, is used for adjusting the flow direction of the lubricating oil after the filter press filters.

The oil pan 210 is detachably mounted at the bottom of the second box 200, and a strainer may be mounted on the oil pan 210, and the strainer may be used to filter the lubricating oil, so that the lubricating oil after passing through the strainer enters the mechanical pump, thereby reducing the damage probability of the mechanical pump. In this way, the oil pan 210 can be detached alone, providing great convenience for maintenance of the vehicle transmission case 1 and replacement of the strainer on the oil pan 210, and reducing the after-market cost of mass production.

Through the setting of filter press cavity 140, first box 100 has integrated the function of filter press casing, has improved the integrated level of first box 100, has reduced the part quantity of vehicle transmission box 1, reduction in production cost. The lubricating oil pumped by the mechanical pump can be filtered for the second time through the filter press, so that impurities in the lubricating oil are fewer, and the damage probability of the hydraulic module is reduced.

Because the hydraulic installation cavity 240 is installed in the side of the second box 200, when satisfying the hydraulic module ground clearance of off-road vehicle, be favorable to disassembling the hydraulic module, be convenient for reprocess the hydraulic module, the hydraulic installation cavity 240 is independent cavity moreover, is favorable to the distribution of hydraulic module to lubricating oil, and lubrication is more stable. The hydraulic module can distribute the filtered lubricating oil to lubricate and dissipate heat of the transmission parts of the vehicle transmission box body 1, and the service life of the vehicle transmission box body 1 is prolonged.

According to some embodiments of the present utility model, as shown in fig. 4, a front side of the first casing 100 is configured with a plate heat exchanger mounting surface 150, and the plate heat exchanger is mounted to the plate heat exchanger mounting surface 150 for exchanging heat with the lubricant oil filtered by the pressure filter. Wherein, the plate heat exchanger is detachably mounted on the plate exchange mounting surface 150, so that the subsequent maintenance is convenient.

Like this, be favorable to reducing the temperature of the lubricating oil after the filter press filters to when the lubricating oil after the filter press filters contacts with the driving medium in the vehicle transmission box 1, not only can lubricate for the driving medium of vehicle transmission box 1, can dispel the heat for the driving medium of vehicle transmission box 1 moreover, in order to avoid the heat of vehicle transmission box 1 to pile up constantly, extension vehicle transmission box 1's life.

According to some embodiments of the present utility model, as shown in fig. 3 and 5, the first casing 100 is provided with a first oil passage 160, the second casing 200 is provided with a second oil passage 220, one end of the first oil passage 160 penetrates through the rear side of the first casing 100, one end of the second oil passage 220 penetrates through the front side of the second casing 200, one end of the first oil passage 160 communicates with one end of the second oil passage 220, the other end of the first oil passage 160 communicates with the pressure filter, and the other end of the second oil passage 220 communicates with the mechanical pump.

Through the arrangement of the first oil duct 160 and the second oil duct 220, the mechanical pump can transmit lubricating oil to the filter press, so that the filter press can filter the lubricating oil, and thus, the arrangement scheme of the oil ducts is integrated on the first box 100 and the second box 200, without independently arranging oil pipes, and the integration level is further improved. Also, since one end of the first oil passage 160 penetrates the rear side of the first case 100 and one end of the second oil passage 220 penetrates the front side of the second case 200, communication between the first oil passage 160 and the second oil passage 220 is facilitated.

According to some embodiments of the present utility model, the second case 200 is configured with a mechanical pump gear shaft hole 202, the mechanical pump gear shaft hole 202 extends in the front-rear direction of the vehicle and is located below the generator shaft hole 201, the mechanical pump gear shaft hole 202 is in communication with the generator shaft hole 201, a power take-off gear 520 is rotatably mounted to the mechanical pump gear shaft hole 202, and the power take-off gear 520 is in driving connection with an output shaft of the generator 500 and the mechanical pump, respectively, and the output shaft of the generator 500 drives the mechanical pump to pump oil through the power take-off gear 520.

According to some embodiments of the present utility model, the first and second cases 100 and 200 are configured with a mechanical pump idler shaft hole 104, the mechanical pump idler shaft hole 104 extending in the front-rear direction of the vehicle, the mechanical pump idler shaft hole 104 being located below the generator shaft hole 201 and above the mechanical pump gear shaft hole 202, the mechanical pump idler shaft hole 104 being in communication with the generator shaft hole 201 and the mechanical pump gear shaft hole 202, respectively. The mechanical pump idler wheel is rotatably installed in the mechanical pump idler wheel shaft hole 104, and an output shaft of the generator 500 is in transmission connection with the power taking gear 520 through the mechanical pump idler wheel.

In this way, not only is the arrangement of the mechanical pump idler shaft bore 104, the generator shaft bore 201, and the mechanical pump gear shaft bore 202 facilitated, but the torque of the mechanical pump can be adjusted by adjusting the gear ratio of the power take-off gear 520 and the mechanical pump idler.

According to some embodiments of the present utility model, as shown in fig. 5 and 14, the first and second cases 100 and 200 are configured with a clutch shaft hole 103, the clutch shaft hole 103 extending in the front-rear direction of the vehicle, the clutch shaft hole 103 being located below the engine shaft hole 102 and above the drive shaft hole 101, the clutch shaft hole 103 being in communication with the engine shaft hole 102 and the drive shaft hole 101, respectively, a clutch 720 being mounted to the clutch shaft hole 103, the clutch 720 being in driving connection with the drive shaft 710 and an output shaft of the engine, respectively, the clutch 720 having an engaged state and a disengaged state, the clutch 720 being in the engaged state, the output shaft of the engine transmitting power to the drive shaft 710, the clutch 720 being in the disengaged state, the power transmission of the engine and the drive shaft 710 being disconnected.

The second case 200 is provided with a clutch oil passage 230, one end of the clutch oil passage 230 is connected with a hydraulic module, and the other end is connected with a clutch 720, and the hydraulic module controls the clutch 720 to switch between a coupling state and a decoupling state by controlling the oil pressure of the clutch oil passage 230.

By arranging the clutch oil duct 230, high-pressure lubricating oil is introduced into the clutch oil duct 230, and the hydraulic module controls the oil pressure of the lubricating oil in the clutch oil duct 230, so that the combination state or the separation state of the clutch 720 can be changed, and an additional clutch 720 control structure is not required to be added, and the structure of the vehicle transmission case 1 is simpler.

In addition, by providing the clutch 720, the power transmission between the engine and the transmission mechanism 700 can be disconnected, and therefore the vehicle can be driven to run by only the drive motor 400, at which time the vehicle enters the electric-only mode.

According to some embodiments of the present utility model, as shown in fig. 6, a third oil passage 250 is provided at a rear side of the second tank 200, the third oil passage 250 extends in an up-down direction, an upper end of the third oil passage 250 is connected to the hydraulic module, the third tank 300 is provided with a fourth oil passage, the fourth oil passage is connected to a lower end of the third oil passage 250, and the hydraulic module distributes lubricating oil to the third tank 300 through the third oil passage 250 and the fourth oil passage.

Through the setting of third oil duct 250 and fourth oil duct, hydraulic module can convey lubricating oil to third box 300 to can lubricate and dispel the heat for the bearing on the third box 300, prolong the life of the driving medium of third box 300, and integrated the arrangement scheme of oil duct on second box 200 and third box 300, need not to set up oil pipe alone, the integrated level is further improved.

According to some embodiments of the present utility model, as shown in fig. 2, 11 and 12, the vehicle transmission case 1 further includes a generator cover 810, a driving motor cover 820 and a decelerator cover 800.

The second case 200 is provided with a generator mounting groove 280, a generator cover plate 810 is mounted on the rear side of the second case 200 and covers the generator 500 in the generator mounting groove 280, and a generator shaft hole 201 penetrates through the generator cover plate 810. The third casing 300 is provided with a driving motor installation groove 330, a driving motor cover plate 820 is installed at the rear side of the third casing 300 and covers the driving motor 400 in the driving motor installation groove 330, and a driving shaft hole 301 penetrates through the driving motor cover plate 820.

The second casing 200 is provided with a speed reducer mounting groove 290, and a speed reducer cover plate 800 is mounted on the rear side surface of the second casing 200 and covers the first speed reducer gear 713 and the second speed reducer gear in the speed reducer mounting groove 290. The driving motor shaft hole 101 penetrates the decelerator cover plate 800.

Wherein, the gear cover plate 800 can be detachably mounted on the second case 200, thus not only fixing the first reduction gear 713 and the second reduction gear, but also facilitating the subsequent maintenance of the assembly and disassembly of the first reduction gear 713 and the second reduction gear, and forming a seal to the gear mounting groove 290. In addition, the driving shaft 710 is respectively connected with the reducer cover 800, the first case 100, the third case 300 and the driving motor cover 820 through bearings, that is, the driving shaft 710 is supported by the reducer cover 800, the first case 100, the third case 300 and the driving motor cover 820, respectively, and the driving shaft 710 is subjected to a large load impact, so that the design of four bearing supports is more beneficial to durability and reliability.

The generator cover 810 is detachably connected to the second case 200, and the driving motor cover 820 is detachably connected to the third case 300. Thus, by arranging the generator cover plate 810 and the driving motor cover plate 820, the position fixing function of the generator 500 and the driving motor 400 can be achieved, the subsequent maintenance and replacement of the generator 500 and the driving motor 400 are facilitated, and the convenience of disassembly and assembly is improved. The generator cover 810 can form a certain seal with respect to the generator mounting groove 280, and the driving motor cover 820 can form a certain seal with respect to the driving motor mounting groove 330.

In some embodiments of the present utility model, the generator cover plate 810 and the decelerator cover plate 800 may be integrated to reduce the number of assembling and disassembling steps and improve the production efficiency.

According to some embodiments of the present utility model, as shown in fig. 14, the drive shaft 710 includes a drive shaft section 711 and an electric shaft section 712. The driving shaft section 711 is rotatably mounted to the first casing 100, the driving shaft section 711 is in transmission connection with the differential 111 and the output shaft of the engine, respectively, the electric shaft section 712 is rotatably mounted to the third casing 300, and the electric shaft section 712 is in transmission connection with the driving motor 400 and the driving shaft section 711, respectively. Wherein, the electric shaft section 712 is sleeved with a first reduction gear 713, the motor shaft sleeve of the driving motor 400 is provided with a second reduction gear 714, and the first reduction gear 713 is meshed with the second reduction gear 714.

Wherein at least one of the drive shaft section 711 and the electric shaft section 712 is rotatably mounted to the decelerator cover 800.

Wherein, through adjusting the transmission ratio of first reduction gear 713 and second reduction gear 714, first reduction gear 713 and second reduction gear 714 can play the effect of reduction gear to make the rotational speed of electric shaft section 712 be less than the rotational speed of driving motor 400's motor shaft, and the moment of torsion of electric shaft section 712 is greater than the moment of torsion of driving motor 400's motor shaft, guarantees the steady operation of electric shaft section 712, and then the rotation of drive shaft section 711 and differential mechanism 111 is stable when driving motor 400 drives the vehicle.

In addition, as the vehicle transmission case 1 is longitudinally arranged, the driving shaft section 711 and the electric shaft section 712 are divided into two sections, and the overall size of the driving shaft 710 is well controlled, thereby being beneficial to the whole vehicle arrangement and the platform scheme.

According to some embodiments of the present utility model, as shown in fig. 1, 5 and 8, the vehicle transmission case 1 further includes a motor controller 900, and the motor controller 900 is mounted to the upper side of the second case 200 and the upper side of the third case 300. The outer peripheral surface of the second box body 200 is provided with a generator outlet cavity 260, the generator outlet cavity 260 is adjacent to the rear side edge of the second box body 200, and the three-phase line of the generator 500 is connected with the motor controller 900 through the generator outlet cavity 260; the right side of the third box 300 is provided with a driving motor outlet cavity 310, the driving motor outlet cavity 310 is adjacent to the upper side edge of the third box 300, and the three-phase line of the driving motor 400 is connected with the motor controller 900 through the driving motor outlet cavity 310.

In this way, the motor controller 900 integrates the generator 500 control function and the drive motor 400 control function, and the overall motor controller 900 is integrated into the vehicle transmission case 1, and the structure of the vehicle transmission case 1 is more compact.

In addition, through the arrangement of the generator outlet cavity 260, the generator outlet cavity 260 can be arranged above the hydraulic installation cavity 240, so that the inspection and maintenance of the three-phase line of the generator 500 are facilitated, and the requirement of an electric gap is met in a compact space of the second box 200. By arranging the outlet cavity 310 of the driving motor, the three-phase line of the driving motor 400 is convenient to check and maintain, and the requirement of electric clearance is met in the compact space of the third box 300.

According to some embodiments of the present utility model, as shown in fig. 5, the outer circumferential surface of the second casing 200 is provided with skid points 270 for mounting and dismounting the vehicle transmission casing 1 on and from the vehicle. The skid point 270 provides a point for applying force to the assembly and disassembly of the vehicle transmission case 1, so that the vehicle transmission case 1 can be assembled and disassembled from the vehicle. And, the underside of the rear side of the second casing 200 may be provided with an assembly positioning process hole 271 to facilitate the disassembly and assembly of the vehicle transmission casing 1 and improve the assembly efficiency.

According to some embodiments of the present utility model, as shown in fig. 9, a left side surface of the third casing 300 is provided with a suspension point 320 for mounting the vehicle transmission casing 1 to a vehicle, and the suspension point 320 is adjacent to a lower side edge and a rear side edge of the third casing 300.

By setting the suspension point 320, it is convenient to mount the vehicle transmission case 1 to the vehicle, and since the weight of the vehicle transmission case 1 is more concentrated on the second case 200 and the third case 300, the suspension point 320 is provided at the third case 300 and relatively close to the rear side, the second case 200 and the third case 300 can be better supported, and the reliability of the mounting of the vehicle transmission case 1 can be improved.

A powertrain according to an embodiment of the present utility model including an engine and a vehicular transmission case 1 according to the above-described embodiment of the present utility model, the engine being disposed in front of the vehicular transmission case 1, will be described below with reference to the drawings.

According to the power assembly of the embodiment of the utility model, the vehicle transmission case 1 of the embodiment of the utility model has the advantages of simple manufacturing process, low processing cost and the like.

A vehicle according to an embodiment of the present utility model, which includes a powertrain according to the above-described embodiment of the present utility model, will be described below with reference to the accompanying drawings. Wherein the vehicle may be a pick-up truck or an off-road vehicle.

According to the vehicle disclosed by the embodiment of the utility model, the power assembly disclosed by the embodiment of the utility model is utilized, so that the vehicle has the advantages of simple manufacturing process, low processing cost and the like.

Other configurations and operations of the vehicle transmission case 1, the powertrain, and the vehicle according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (23)

1. A vehicle transmission case characterized by comprising a plurality of sub-cases, the plurality of sub-cases being arranged in a front-rear direction of a vehicle and being connected in sequence;

the motor comprises a plurality of sub-shells, wherein the sub-shells are provided with a driving motor shaft hole, a driving shaft hole, an engine shaft hole, a generator shaft hole and a first half shaft hole, the driving motor shaft hole, the driving shaft hole, the engine shaft hole and the generator shaft hole are all extended along the front-back direction of the vehicle, the first half shaft hole is extended along the left-right direction of the vehicle, the driving shaft hole is respectively communicated with the driving motor shaft hole, the engine shaft hole and the first half shaft hole, and the generator shaft hole is communicated with the engine shaft hole.

2. The vehicle transmission case according to claim 1, wherein the plurality of sub-cases includes a first case, a second case, and a third case, the first case, the second case, and the third case being connected in order in a front-rear direction of the vehicle;

the driving motor shaft hole is formed in the third box body, the driving shaft hole is formed in the first box body and the third box body, the engine shaft hole is formed in the first box body and the second box body, the generator shaft hole is formed in the second box body, and the first half shaft hole is formed in the first box body.

3. The vehicle transmission case according to claim 2, wherein the first case and the second case are configured with clutch shaft holes that extend in a front-rear direction of the vehicle, the clutch shaft holes being in communication with the engine shaft hole and the drive shaft hole, respectively.

4. The vehicle transmission case of claim 2, wherein the first case is configured with a differential cavity for mounting a differential, the differential cavity being in communication with the drive shaft bore and the first half shaft bore, respectively.

5. The vehicle transmission case according to claim 4, further comprising:

the differential cover plate is mounted on the first box body and is suitable for covering the differential in the differential cavity, and the differential cover plate is provided with a second half-shaft hole communicated with the differential cavity;

the first half axle hole and the second half axle hole are positioned on two opposite sides of the differential mechanism cavity in the left-right direction of the vehicle, and the central axis of the first half axle hole and the central axis of the second half axle hole coincide.

6. The vehicle transmission case according to claim 2, wherein the front side surface of the first case is configured with a flywheel groove adapted to mount a flywheel on an engine output shaft, the engine shaft hole penetrates a groove bottom of the flywheel groove, and the flywheel groove is located above the first half shaft hole.

7. The vehicle transmission case according to claim 2, characterized by further comprising:

and the oil pan is arranged at the bottom of the second box body and is used for containing lubricating oil.

8. The vehicle transmission case according to claim 7, wherein the second case is configured with a mechanical pump gear shaft hole extending in a front-rear direction of the vehicle and located below the generator shaft hole, the mechanical pump gear shaft hole being in communication with the generator shaft hole, the second case being mounted with a mechanical pump for pumping lubricating oil in the oil pan.

9. The vehicle transmission case according to claim 8, wherein the first case and the second case are configured with mechanical pump idler shaft holes extending in a front-rear direction of the vehicle, the mechanical pump idler shaft holes being located below the generator shaft holes and above the mechanical pump gear shaft holes, the mechanical pump idler shaft holes being respectively in communication with the mechanical pump gear shaft holes and the generator shaft holes.

10. The vehicle transmission housing of claim 8, wherein a side of the first housing is configured with a filter-press cavity for mounting a filter-press that is communicable with the mechanical pump for filtering lubricant pumped by the mechanical pump.

11. The vehicle transmission case according to claim 10, wherein a front side surface of the first case is configured with a plate-change mounting surface for mounting a plate heat exchanger for exchanging heat with the lubricating oil filtered by the pressure filter.

12. The vehicle transmission housing of claim 10, wherein a side of the second housing is configured with a hydraulic mounting cavity, at least a portion of the hydraulic module being mounted within the hydraulic mounting cavity and connected to the pressure filter for regulating a flow direction of the lubricant filtered by the pressure filter.

13. The vehicle transmission case according to claim 12, wherein the first case is configured with a first oil passage, the second case is configured with a second oil passage, one end of the first oil passage penetrates a rear side surface of the first case, one end of the second oil passage penetrates a front side surface of the second case, the one end of the first oil passage and the one end of the second oil passage communicate, the other end of the first oil passage communicates with the pressure filter, and the other end of the second oil passage communicates with the mechanical pump.

14. The vehicle transmission case according to claim 12, wherein the second case is configured with a clutch oil passage having one end connected to the hydraulic module and the other end adapted to be connected to a clutch, the hydraulic module controlling switching of the clutch between an engaged state and a disengaged state by controlling an oil pressure of the clutch oil passage.

15. The vehicle transmission case according to claim 12, wherein a rear side face of the second case is configured with a third oil passage extending in an up-down direction of the vehicle, an upper end of the third oil passage is connected to the hydraulic module, the third case is configured with a fourth oil passage connected to a lower end of the third oil passage, and the hydraulic module distributes lubricating oil into the third case through the third oil passage and the fourth oil passage.

16. The vehicle transmission case according to claim 2, characterized by further comprising:

the speed reducer cover plate is arranged on the rear side face of the second box body, and the shaft hole of the driving motor penetrates through the speed reducer cover plate.

17. The vehicle transmission case according to claim 2, characterized by further comprising:

The generator cover plate is arranged on the second box body, the generator cover plate is arranged on the rear side face of the second box body and is covered on the generator mounting groove, and the generator shaft hole penetrates through the generator cover plate.

18. The vehicle transmission case according to claim 2, characterized by further comprising:

the driving motor cover plate is arranged on the third box body, the driving motor cover plate is arranged on the rear side face of the third box body and is covered on the driving motor mounting groove, and the driving shaft hole penetrates through the driving motor cover plate.

19. The vehicle transmission case according to claim 2, wherein the first case and the second case are configured with a generator idler shaft hole that extends in a front-rear direction of the vehicle, the generator idler shaft hole being in communication with the engine shaft hole and the generator shaft hole, respectively.

20. The vehicle transmission case according to claim 2, wherein an outer peripheral surface of the second case is provided with a skid point for attaching and detaching the vehicle transmission case to and from a vehicle.

21. The vehicle transmission housing of claim 2, wherein a left side of the third housing is provided with a suspension point for mounting the vehicle transmission housing to a vehicle, the suspension point being adjacent to a lower side edge and a rear side edge of the third housing.

22. A powertrain, comprising:

the vehicle transmission case according to any one of claims 1-21;

an engine, an input shaft of which is rotatably mounted to the engine shaft hole;

the driving motor is arranged in the vehicle transmission box body, and a motor shaft of the driving motor is rotatably arranged in the driving motor shaft hole;

the generator is arranged in the vehicle transmission box body, a motor shaft of the generator is rotatably arranged in the generator shaft hole, and the motor shaft of the generator is in transmission connection with an output shaft of the engine;

a drive shaft disposed within the vehicle transmission case and rotatably mounted in the drive shaft hole, the drive shaft being in driving connection with an output shaft of the engine, a motor shaft of the drive motor, respectively;

the first half shaft is rotatably installed in the first half shaft hole and is in transmission connection with the driving shaft.

23. A vehicle comprising a powertrain according to claim 22.