CN218171988U - Double-hydraulic-pump power take-off mechanism of pure electric off-highway mining dump truck - Google Patents
Double-hydraulic-pump power take-off mechanism of pure electric off-highway mining dump truck Download PDFInfo
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- CN218171988U CN218171988U CN202222117492.5U CN202222117492U CN218171988U CN 218171988 U CN218171988 U CN 218171988U CN 202222117492 U CN202222117492 U CN 202222117492U CN 218171988 U CN218171988 U CN 218171988U
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Abstract
The utility model discloses a two hydraulic pump power takeoff mechanisms of electricelectric moves non-highway mining dump truck, include: the power take-off system comprises a power take-off motor and two hydraulic pumps, wherein the two hydraulic pumps are respectively connected to two ends of the power take-off motor; the rotating shaft of the hydraulic pump is rigidly connected with the rotating shaft of the power take-off motor; one of the two hydraulic pumps is a steering pump, and the other one is a lifting and disc braking double pump. The utility model provides a give the technological problem of two high-power hydraulic pump power fetches simultaneously under the narrow and small space.
Description
Technical Field
The utility model belongs to electricelectric moves mining dump truck field, concretely relates to electricelectric moves two hydraulic pump power takeoff mechanism of non-highway mining dump truck.
Background
The pure electric mining vehicle used in the mine is a pure electric wide-body dump truck transformed from a highway truck at present, a chassis system is basically the same as the highway truck, and the pure electric mining vehicle is characterized by large space, a braking system uses front and rear pneumatic brakes, a carriage lifting cylinder is a single cylinder and is arranged on the front side of the carriage, the steering force is small, the whole vehicle does not have a disc braking hydraulic pump, only a steering pump and a lifting pump with small power are needed, and the steering pump and the lifting pump do not have the condition of simultaneous working, and the power can be taken from a gearbox to meet the use requirement.
However, as the mine has continuous and severe safety requirements, more and more large-scale mine users tend to use the pure electric off-highway mine rigid dump truck; the frame of the vehicle is mainly characterized in that the frame is a high-strength alloy steel welded rigid frame, the bearing capacity is strong, the service life is long, the safety is better, the wheelbase of the whole vehicle is short, and the whole vehicle is provided with an oil cooling disc braking system, a double-cylinder multi-stage carriage lifting system, a full hydraulic steering system and the like.
In order to increase the difficulty-removing capacity of the pure electric off-highway mining rigid dump truck, the steering power is required to be large; the steering power is large, the power of a steering pump and a disc brake pump (belonging to a hydraulic pump) is large, and the steering pump and the disc brake pump need to work simultaneously; because the wheelbase of the whole vehicle is short, the internal space of the frame is small, more parts need to be installed, and no space for configuring a motor, a controller and a frequency converter is reserved for a steering pump and a disc brake pump (belonging to a hydraulic pump). If the two high-power hydraulic pumps are respectively provided with a power source, the two high-power hydraulic pumps are respectively provided with a corresponding motor, a controller and a frequency converter; in order to adapt to poor road conditions and improve the escaping capability of the vehicle, two high-power hydraulic pumps are required to work simultaneously. The mode of respectively configuring power sources for the two high-power hydraulic pumps cannot meet the use requirement of simultaneous working of the two high-power hydraulic pumps, and cannot solve the technical problem of vehicle escaping. Due to the limitation of the conditions, a plurality of motors cannot be arranged to respectively take power for each hydraulic pump, and the performance output of the pure electric off-highway mining rigid dump truck is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a two hydraulic pump power take-off mechanisms of electricelectric moves non-highway mining dump truck, solved under the narrow and small space simultaneously for the technological problem of two high-power hydraulic pump power take-offs.
In order to achieve the above object, the utility model uses the technical solution that:
the two hydraulic pump power takeoff mechanism of the mining dump truck of the pure electric off-highway, including: the power take-off system comprises a power take-off motor and two hydraulic pumps, wherein the two hydraulic pumps are respectively connected to two ends of the power take-off motor; the rotating shaft of the hydraulic pump is rigidly connected with the rotating shaft of the power take-off motor.
Furthermore, one of the two hydraulic pumps is a steering pump, and the other hydraulic pump is a lifting and disc braking double pump.
Further, the power take-off motor includes: the motor comprises a motor shell, a motor flange, a motor rotor and a motor stator; the end part of the motor shell is provided with a plurality of shell thread counter bores, the middle part of the motor flange is provided with a rotor through hole, the outer side of the rotor through hole is provided with a plurality of flange thread counter bores, and the outer side of the flange thread hole is provided with a flange fixing through hole; the flange fixing bolt penetrates through the flange fixing through hole to be connected to the threaded counter bore of the shell, and the two motor flanges are respectively connected to the two ends of the motor shell; the motor stator is fixed on the inner wall of the motor shell, and two ends of the motor rotor are respectively sleeved in the rotor through holes.
Furthermore, the motor flange is provided with a plurality of connecting side edges at the side edges, and the connecting side edges are provided with a plurality of side edge threaded holes; a fixing plate is connected between the two motor flanges, a plurality of fixing plate through holes are formed in the fixing plate, and flange connecting bolts penetrate through the fixing plate through holes to be connected to the side threaded holes.
Further, lift and dish braking double pump select for use the gear pump, include: the double-pump power output port and the double-pump input port are arranged on the side part of the double-pump shell, a double-pump fixing end plate is arranged at the end part of the double-pump shell, a double-pump fixing through hole is arranged on the outer side of the double-pump fixing end plate, and a double-pump gear through hole is arranged in the middle of the double-pump fixing end plate; a duplex pump fixing bolt penetrates through the duplex pump fixing through hole to be connected to the flange thread counter bore, and the end part of the duplex pump shell is connected to the motor flange; the rotating shaft of the duplex pump gear extends out of the duplex pump gear through hole and is rigidly connected with the motor rotor.
Furthermore, a plurality of sealing grooves are formed in the duplex pump shell, sealing rings are arranged in the sealing grooves, and rotating shafts of the duplex pump gears are sleeved on the sealing rings.
Furthermore, duplex pump pipeline connecting flanges are respectively arranged at the power output port and the inlet of the duplex pump, and pipeline connecting threaded counter bores are formed in the duplex pump pipeline connecting flanges.
Further, the steering pump selects the impeller pump for use, and the structure includes: the steering pump rotor is arranged inside the steering pump shell; a steering pump input port is formed in the side part of the steering pump shell, a steering pump power output end socket is formed in the top part of the steering pump shell, a steering pump fixing end plate is arranged at the end part of the steering pump shell, a steering pump fixing through hole is formed in the outer side of the steering pump fixing end plate, and a steering pump rotor through hole is formed in the middle part of the steering pump fixing end plate; the duplex pump fixing bolt penetrates through the steering pump fixing through hole and is connected to the flange thread counter bore; one end of the steering pump rotor is arranged in the steering pump shell, and the other end of the steering pump rotor extends out of the through hole of the steering pump rotor and is rigidly connected with the motor rotor.
Furthermore, a plurality of sealing grooves are formed in the steering pump shell, sealing rings are arranged in the sealing grooves, and a steering pump rotor is sleeved on the sealing rings.
Further, a threading sleeve is arranged on the outer wall of the motor shell, and a hoisting lug is connected to the motor flange.
The utility model discloses technical effect includes:
1. the utility model discloses a two hydraulic pump power take-off mechanisms of electricelectric moves mining dump truck on off-highway can satisfy two high-power hydraulic pump power take-offs simultaneously, has avoided two high-power hydraulic pumps to need the technical defect who disposes the power supply respectively.
On the pure electric off-highway mining dump truck, the power take-off motor simultaneously takes power for the steering pump and the lifting and disc braking double pump, and the power is simultaneously provided for the oil-cooled disc braking system, the double-cylinder multi-stage carriage lifting system and the high-power hydraulic steering system, so that the safety of the vehicle is higher, the output power is more direct, and the technical requirement of high steering power is met.
2. The utility model discloses use a power take-off motor simultaneously for the steering pump, lift and set brake pump power take-off, effective utilization arranges the space, has solved the technical requirement who uses two high-power hydraulic pumps under the narrow and small space.
Drawings
FIG. 1 is a layout view of a double-hydraulic pump power take-off mechanism of the middle-pure electric off-highway mining dump truck of the utility model;
FIG. 2 is a schematic view of the connection between the lift and disc brake double pump and the power take-off motor;
fig. 3 is a schematic diagram of the connection between the steering pump and the power take-off motor of the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
As shown in fig. 1, the utility model discloses well pure electric non-highway mining dump truck double hydraulic pump power take-off mechanism's arrangement diagram.
The two hydraulic pump power takeoff mechanism of the mining dump truck of the pure electric off-highway, including: the power take-off system comprises a power take-off motor 1 and two hydraulic pumps 2, wherein the two hydraulic pumps 2 are respectively connected to two ends of the power take-off motor 1; the rotating shaft of the hydraulic pump 2 is rigidly connected with the rotating shaft of the power take-off motor 1.
Fig. 2 is a schematic diagram of the connection between the lifting and disc braking twin pump 22 and the power take-off motor 1 according to the present invention.
In the embodiment of the present invention, one of the two hydraulic pumps 2 is a steering pump 21, and the other is a lifting and disc braking dual pump 22. The utility model discloses in, lift and the both ends at the electric motor rotor of power take-off motor 1 are installed respectively with steering pump 21 to dish braking duplex pump 22, use power take-off motor 1 just can be simultaneously for lifting and dish braking duplex pump 22 and steering pump 21 power take-off, satisfy lift and dish braking duplex pump 22 and steering pump 21 simultaneous working requirement, improve the space utilization of frame, reduce motor and motor auxiliary assembly's use quantity, effectively reduce whole car cost and simplify vehicle control system, shorten vehicle design research and development cycle.
The power take-off motor 1 includes: the motor comprises a motor shell 11, a motor flange 12, a motor rotor and a motor stator; the end part of the motor shell 11 is provided with a plurality of shell thread counter bores, the middle part of the motor flange 12 is provided with a rotor through hole, the outer side of the rotor through hole is provided with a plurality of flange thread counter bores, and the outer side of the flange thread hole is provided with a flange fixing through hole; the flange fixing bolt 124 passes through the flange fixing through hole to be connected to the threaded counter bore of the shell, and the two motor flanges 12 are respectively connected to the two ends of the motor shell 11; the motor stator is fixed on the inner wall of the motor shell 11, and two ends of the motor rotor are respectively sleeved in the rotor through holes.
The outer wall of the motor shell 11 is provided with a threading sleeve 112, and the threading sleeve 112 is used for leading out a lead. The motor flange 12 is connected with a lifting lug 111, and the lifting lug 111 is used for mounting and fixing the power take-off motor 1.
The motor flange 12 is provided with a plurality of connecting sides 121 on the side, and the connecting sides 121 are provided with a plurality of side threaded holes 122; the fixing plate 113 is provided with a plurality of fixing plate through holes 114, and flange coupling bolts 115 are coupled to the side screw holes 122 through the fixing plate through holes 114. The fixing plate 113 enhances the connection strength of the motor flanges 12 on both sides of the motor housing 11, and the power take-off motor 1 can be fixed to the frame by the fixing plate through hole 114.
The lifting and disc braking dual pump 22 selects a gear pump, and the structure comprises: the double-pump power output device comprises a double-pump shell 221 and a double-pump gear, wherein the double-pump gear is arranged inside the double-pump shell 221, the side part of the double-pump shell 221 is provided with a double-pump power output port 222 and a double-pump input port 223, the end part of the double-pump shell 221 is provided with a double-pump fixing end plate 224, the outer side of the double-pump fixing end plate 224 is provided with a double-pump fixing through hole, and the middle part of the double-pump fixing end plate is provided with a double-pump gear through hole; a duplex pump fixing bolt 227 penetrates through a duplex pump fixing through hole to be connected to the flange thread counter bore, and the end part of the duplex pump shell 221 is connected to the motor flange 12; the rotating shaft of the duplex pump gear extends out of the duplex pump gear through hole and is rigidly connected with the motor rotor.
The duplex pump casing 221 is internally provided with a plurality of sealing grooves, sealing rings are arranged in the sealing grooves, the rotating shaft of the duplex pump gear is sleeved on the sealing rings, sealing is achieved through the plurality of sealing rings, and hydraulic oil in the duplex pump casing 221 is prevented from leaking.
The duplex pump power output port 222 and the duplex pump input port 223 are respectively provided with a duplex pump pipeline connecting flange 225, the duplex pump pipeline connecting flange 225 is provided with a pipeline connecting threaded counter bore 226, and the duplex pump pipeline connecting flange 225 is connected with a hydraulic pipeline. And sealing gaskets are arranged between the duplex pump pipeline connecting flange 225 and the hydraulic oil output pipeline and the hydraulic oil input pipeline, so that hydraulic oil in the duplex pump shell 221 is prevented from leaking.
As shown in fig. 3, it is a schematic connection diagram of the steering pump 21 and the power take-off motor 1 in the present invention.
The steering pump 21 is a vane pump, and the structure comprises: the steering pump comprises a steering pump shell 211 and a steering pump rotor, wherein the steering pump rotor is arranged inside the steering pump shell 211; a steering pump input port 212 is arranged at the side part of the steering pump shell 211, a steering pump power output end head 213 is arranged at the top part of the steering pump shell 211, a steering pump fixing end plate 214 is arranged at the end part of the steering pump shell 211, a steering pump fixing through hole is arranged at the outer side of the steering pump fixing end plate 214, and a steering pump rotor through hole is arranged at the middle part of the steering pump fixing end plate; the duplex pump fixing bolt 215 passes through the steering pump fixing through hole to be connected to the flange thread counter bore, and the end part of the steering pump shell 211 is connected to the motor flange 12; one end of the steering pump rotor is arranged in the steering pump shell 211, and the other end of the steering pump rotor extends out of the through hole of the steering pump rotor and is rigidly connected with the motor rotor.
The power output end 213 of the steering pump and the input port 212 of the steering pump are connected with a hydraulic pipeline.
A plurality of sealing grooves are formed in the steering pump shell 211, sealing rings are arranged in the sealing grooves, a steering pump rotor is sleeved on the sealing rings, sealing is achieved through the sealing rings, and leakage of hydraulic oil in the steering pump shell 211 is prevented.
The using method comprises the following specific steps:
step 1: two hydraulic pumps 2 are respectively connected to motor flanges 12 at two ends of a power take-off motor 1, and the two hydraulic pumps 2 are respectively connected with a high-power hydraulic steering system, a double-cylinder multi-stage carriage lifting system and an oil cooling disc braking system through hydraulic pipelines;
the flange fixing bolt 124 passes through the flange fixing through hole to be connected to the threaded counter bore of the shell, and the two motor flanges 12 are respectively connected to the two ends of the motor shell 11; the steering pump rotor and the duplex pump gear are respectively connected to two ends of the motor rotor by splines; a steering pump shell 211 and a duplex pump shell 221 are respectively arranged on a steering pump rotor and a duplex pump gear, a duplex pump fixing bolt 227 penetrates through a duplex pump fixing through hole to be connected to a flange thread counter bore, and the end part of the duplex pump shell 221 is connected to the motor flange 12; the duplex pump fixing bolt 215 passes through the steering pump fixing through hole to be connected to the flange thread counter bore, and the end part of the steering pump shell 211 is connected to the motor flange 12; and (3) respectively connecting the two hydraulic pumps 2 to the motor flanges 12 at the two ends of the power take-off motor 1 to complete the assembly of the hydraulic pumps 2 and the power take-off motor 1.
The flange connecting bolt 115 passes through the fixing plate through hole 114 to be connected to the side threaded hole 122, so that the fixing plate 113 is connected between the two motor flanges 12; after the power take-off motor 1 and the hydraulic pump 2 are assembled, the power take-off motor 1 and the hydraulic pump 2 are hoisted to the mounting positions of the frame by utilizing hoisting equipment, and the assembly bolts penetrate through the frame through holes and the fixing plate through holes 114 to connect the power take-off mechanism to the frame.
The steering pump 21 is connected with the high-power hydraulic steering system through a hydraulic pipeline to provide power for the high-power hydraulic steering system; the lifting and disc braking duplex pump 22 is respectively connected with the double-cylinder multi-stage carriage lifting system and the oil cooling disc braking system through hydraulic pipelines to provide power for the double-cylinder multi-stage carriage lifting system and the oil cooling disc braking system.
Step 2: when the hydraulic power steering system needs to steer and get rid of the trouble, the two hydraulic pumps 2 simultaneously get power to the power taking motor 1, and the power taking motor 1 simultaneously provides power for the oil cooling disc braking system, the double-cylinder multi-stage carriage lifting system and the high-power hydraulic steering system.
The output power of the power take-off motor 1 is directly transmitted to the two hydraulic pumps 2, and the technical requirement of large steering power is met.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. The utility model provides a two hydraulic pump power takeoff mechanisms of electricelectric moves mining dump truck on off-highway which characterized in that includes: the power take-off system comprises a power take-off motor and two hydraulic pumps, wherein the two hydraulic pumps are respectively connected to two ends of the power take-off motor; the rotating shaft of the hydraulic pump is rigidly connected with the rotating shaft of the power take-off motor.
2. The dual-hydraulic-pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 1, wherein one of the two hydraulic pumps is a steering pump, and the other one is a lifting and disc braking dual-pump.
3. The dual-hydraulic-pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 2, wherein the power take-off motor comprises: the motor comprises a motor shell, a motor flange, a motor rotor and a motor stator; the end part of the motor shell is provided with a plurality of shell thread counter bores, the middle part of the motor flange is provided with a rotor through hole, the outer side of the rotor through hole is provided with a plurality of flange thread counter bores, and the outer side of the flange thread hole is provided with a flange fixing through hole; the flange fixing bolt penetrates through the flange fixing through hole to be connected to the threaded counter bore of the shell, and the two motor flanges are respectively connected to the two ends of the motor shell; the motor stator is fixed on the inner wall of the motor shell, and two ends of the motor rotor are respectively sleeved in the rotor through holes.
4. The dual-hydraulic-pump power take-off mechanism of the full-electric off-highway mining dump truck as claimed in claim 3, wherein the motor flange is provided with a plurality of connecting side edges at the side edges, and the connecting side edges are provided with a plurality of side edge threaded holes; a fixing plate is connected between the two motor flanges, a plurality of fixing plate through holes are formed in the fixing plate, and flange connecting bolts penetrate through the fixing plate through holes to be connected to the side threaded holes.
5. The dual-hydraulic pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 3, wherein the lifting and disc braking dual pump is a gear pump, comprising: the double-pump power output port and the double-pump input port are arranged on the side part of the double-pump shell, a double-pump fixing end plate is arranged at the end part of the double-pump shell, a double-pump fixing through hole is arranged on the outer side of the double-pump fixing end plate, and a double-pump gear through hole is arranged in the middle of the double-pump fixing end plate; a duplex pump fixing bolt penetrates through the duplex pump fixing through hole to be connected to the flange thread counter bore, and the end part of the duplex pump shell is connected to the motor flange; the rotating shaft of the duplex pump gear extends out of the duplex pump gear through hole and is rigidly connected with the motor rotor.
6. The dual-hydraulic pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 5, wherein a plurality of sealing grooves are formed in the housing of the dual pump, sealing rings are arranged in the sealing grooves, and rotating shafts of gears of the dual pump are sleeved on the sealing rings.
7. The dual-hydraulic-pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 5, wherein a dual-pump pipeline connecting flange is respectively arranged at a power output port and an inlet port of the dual-pump, and the dual-pump pipeline connecting flange is provided with a pipeline connecting threaded counter bore.
8. The dual-hydraulic-pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 3, wherein the steering pump is a vane pump, and the structure comprises: the steering pump rotor is arranged inside the steering pump shell; the side part of the steering pump shell is provided with a steering pump input port, the top part of the steering pump shell is provided with a steering pump power output end socket, the end part of the steering pump shell is provided with a steering pump fixing end plate, the outer side of the steering pump fixing end plate is provided with a steering pump fixing through hole, and the middle part of the steering pump shell is provided with a steering pump rotor through hole; the duplex pump fixing bolt penetrates through the steering pump fixing through hole and is connected to the flange thread counter bore; one end of the steering pump rotor is arranged in the steering pump shell, and the other end of the steering pump rotor extends out of the through hole of the steering pump rotor and is rigidly connected with the motor rotor.
9. The dual-hydraulic-pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 8, wherein a plurality of sealing grooves are formed in the steering pump housing, sealing rings are arranged in the sealing grooves, and rotors of the steering pump are sleeved on the sealing rings.
10. The dual-hydraulic-pump power take-off mechanism of the pure electric off-highway mining dump truck as claimed in claim 3, wherein a threading sleeve is arranged on the outer wall of the motor housing, and a hoisting lug is connected to the motor flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222117492.5U CN218171988U (en) | 2022-08-11 | 2022-08-11 | Double-hydraulic-pump power take-off mechanism of pure electric off-highway mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222117492.5U CN218171988U (en) | 2022-08-11 | 2022-08-11 | Double-hydraulic-pump power take-off mechanism of pure electric off-highway mining dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218171988U true CN218171988U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222117492.5U Active CN218171988U (en) | 2022-08-11 | 2022-08-11 | Double-hydraulic-pump power take-off mechanism of pure electric off-highway mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218171988U (en) |
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2022
- 2022-08-11 CN CN202222117492.5U patent/CN218171988U/en active Active
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