WO2023082863A1 - Split-type internal combustion hydraulic transmission pack for motor train unit - Google Patents

Abstract

A split-type internal combustion hydraulic transmission pack for a motor train unit, the split-type internal combustion liquid transmission pack comprising a power transmission unit (1), a cooling and heat dissipation unit (2), and an oil-water pipeline (3) connecting the power transmission unit (1) to the cooling and heat dissipation unit (2), wherein a flywheel end of a diesel engine (1-01) is connected to a hydraulic transmission box (1-03) by means of an elastic coupling I (1-02), a free end of the diesel engine (1-01) drives an auxiliary generator hydraulic pump (1-05) and a cooling hydraulic pump (1-06), and the auxiliary generator hydraulic pump (1-05) drives an auxiliary generator (1-09); a first cross beam (1-301) of a mounting frame comprises an upper convex portion (1-501), a second cross beam (1-302) comprises a lower concave portion (1-502), a first longitudinal beam (1-303) and a second longitudinal beam (1-304) are arranged between the upper convex portion (1-501) and the lower concave portion (1-502), the diesel engine (1-01) is mounted on the first longitudinal beam (1-303) and the second longitudinal beam (1-304), and the hydraulic transmission box (1-03) is mounted below the upper convex portion (1-501).

Description

A split type internal combustion liquid transmission power pack for EMUs technical field

The invention relates to the technical field of internal combustion multiple train sets, in particular to a split type internal combustion fluid transmission power pack for multiple train sets.

Background technique

Due to the characteristics of simple structure, stability and reliability, high efficiency, and low maintenance cost, hydraulic transmission is widely used in the field of international diesel trains. It integrates high-power hydraulic transmission boxes and horizontal diesel engines for high-speed trains into a whole The power transmission unit is suspended on the lower part of the car body floor, and the cooling and heat dissipation unit is separately integrated and installed on the roof. The layout is more reasonable, which greatly saves the installation space and the weight of the whole vehicle, and reduces the manufacturing cost of the whole vehicle and the later operation and maintenance costs.

In the prior art, the hydraulic transmission box and the diesel engine are installed separately, which has low integration and takes up a large space, which is not conducive to effective use of space and reduction of vehicle weight.

Contents of the invention

The invention provides a split-type internal combustion liquid transmission power pack for an EMU to overcome the above-mentioned technical problems.

A split-type internal combustion liquid transmission power pack for an EMU, comprising a power transmission unit, a cooling and heat dissipation unit, and an oil-water pipeline connecting the power transmission unit and the cooling and heat dissipation unit;

The power transmission unit includes a diesel engine, a hydraulic transmission box, an auxiliary generator, an auxiliary generator hydraulic pump, a cooling hydraulic pump, an installation frame and a suspension system;

The flywheel end of the diesel engine is connected to the hydraulic transmission box through an elastic coupling, the free end of the diesel engine drives the auxiliary generator hydraulic pump and the cooling hydraulic pump, and the generator hydraulic pump drives the auxiliary generator machine;

The installation frame includes a first beam, a second beam, a first longitudinal beam and a second longitudinal beam, the first beam includes an upper convex portion, the second beam includes a lower concave portion, the first longitudinal beam and the second longitudinal beam The two longitudinal beams are arranged between the upper convex part and the lower concave part, the diesel engine is installed on the first longitudinal beam and the second longitudinal beam, and the hydraulic transmission box is installed under the upper convex part.

Further, the first longitudinal beam and the second longitudinal beam both include a first longitudinal portion, a connecting portion and a second longitudinal portion, the first longitudinal portion is fixedly connected to the raised portion, and the second longitudinal portion Fixedly connected with the lower concave part, the connecting part is inclined from top to bottom and connects the first longitudinal part and the second longitudinal part.

Further, both the first beam and the second beam are plate-welded box beams, the first longitudinal beam and the second longitudinal beam are round tube beams, and the suspension system includes a first shock absorber and a second a shock absorber, the diesel engine is installed on the second longitudinal part through the first shock absorber, the hydraulic transmission box is installed under the upper convex part through the second shock absorber, the The first shock absorber is a cylindrical rubber shock absorber, and the second shock absorber is a conical rubber shock absorber.

Further, the installation frame further includes a third longitudinal beam and a fourth longitudinal beam arranged between the first beam and the second beam, and the third longitudinal beam and the fourth longitudinal beam are respectively arranged on the first beam. Both sides of a longitudinal beam and a second longitudinal beam; a fifth longitudinal beam and a sixth longitudinal beam are arranged on the second transverse beam, and one end of the fifth longitudinal beam and the sixth longitudinal beam is fixedly connected to the lower concave portion , and the other end extends to a side away from the first beam.

Further, the fifth longitudinal beam and the sixth longitudinal beam are provided with the auxiliary generator, exhaust muffler, water-to-air cooler hydraulic oil heat exchanger, high-temperature water temperature control valve, low-temperature water temperature control valve and hydraulic oil tank, air intake filters are fixed on the third longitudinal beam and the fourth longitudinal beam, fuel filters are installed on the fourth longitudinal beam, and the two ends of the first beam are respectively installed With electric control box and transmission oil heat exchanger;

Both ends of the first crossbeam and the second crossbeam are provided with V-shaped rubber shock absorbers, and the installation frame is suspended below the floor surface of the EMU through the V-shaped rubber shock absorbers.

Further, the cooling and heat dissipation unit includes a hydraulic motor, a fan, a low-temperature radiator and a high-temperature radiator, the cooling hydraulic pump drives the hydraulic motor, the hydraulic motor drives the fan, and the fan is used to cool the Low temperature radiator and high temperature radiator;

The high-temperature water in the high-temperature radiator is used to cool the diesel engine and the transmission oil in the transmission oil heat exchanger, and the low-temperature water in the low-temperature radiator is used to cool the supercharged air of the diesel engine, the cooling Hydraulic oil in auxiliary generators and hydraulic oil heat exchangers.

The invention discloses a split-type internal combustion liquid transmission power pack for an EMU. The diesel engine and the hydraulic transmission box are installed on the same frame, and the layout is compact and reasonable, which saves installation space and reduces the weight of the whole vehicle. The hydraulic drive auxiliary power generation system is added to meet the auxiliary power demand of the whole vehicle.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic diagram of the installation of a split type internal combustion liquid transmission power pack for a train set disclosed in an embodiment of the present invention;

Fig. 2 is a top view schematic diagram of a split type internal combustion liquid transmission power pack for an EMU disclosed in an embodiment of the present invention;

Fig. 3 is a schematic diagram of the working principle of a split type internal combustion fluid transmission power pack for an EMU disclosed in an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an installation frame disclosed by an embodiment of the present invention;

Fig. 5 is a schematic front view of a split-type internal combustion fluid transmission power pack for an EMU disclosed in an embodiment of the present invention;

Fig. 6 is a schematic side view of a split type internal combustion liquid transmission power pack for an EMU disclosed in an embodiment of the present invention.

Explanation of reference numbers:

1. Power transmission unit; 1-01, diesel engine; 1-02, elastic coupling one; 1-03, hydraulic transmission box; 1-04, elastic coupling two; 1-05, auxiliary generator hydraulic pump ;1-06, cooling hydraulic pump; 1-07, transmission oil heat exchanger; 1-08, water-air cooler; 1-09, auxiliary generator; 1-10, hydraulic oil heat exchanger; 1-11, Exhaust muffler; 1-12, high temperature water temperature control valve; 1-13, low temperature water temperature control valve; 1-14, hydraulic oil tank; 1-15, intake filter; 1-16, fuel filter ;1-17, electric control box; 1-18, transmission oil heat exchanger; 1-301, the first beam; 1-302, the second beam; 1-303, the first longitudinal beam; 1-304, the second Longitudinal beam; 1-305, the third longitudinal beam; 1-306, the fourth longitudinal beam; 1-307, the fifth longitudinal beam; 1-308, the sixth longitudinal beam; 1-311, the first longitudinal part; 1- 312, connection part; 1-313 second longitudinal part; 1-401, cylindrical rubber shock absorber; 1-402, conical rubber shock absorber; 1-403, V-shaped rubber shock absorber; 1-501, Upper convex part; 1-502, lower concave part;

2. Cooling and heat dissipation unit; 2-01, hydraulic motor; 2-02, fan; 2-03, low temperature radiator; 2-04, high temperature radiator;

3. Oil and water pipeline;

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1-6, a split type internal combustion fluid transmission power pack for an EMU, including a power transmission unit 1, a cooling and heat dissipation unit 2, and an oil-water pipeline 3 connecting the power transmission unit 1 and the cooling and heat dissipation unit 2;

The power transmission unit 1 is suspended under the floor surface of the EMU through the V-shaped rubber shock absorber 1-403 of the suspension system, and includes a diesel engine 1-01, a diesel engine auxiliary system, a hydraulic transmission box 1-02, and an auxiliary generator 1-01. 09. Auxiliary generator hydraulic pump 1-05, cooling hydraulic pump 1-06, installation frame and suspension system, also includes electrical control system, electrical components are located in the electrical control box 1-17;

The flywheel end of the diesel engine 1-01 is connected to the hydraulic transmission box 1-03 through an elastic coupling-1-02 to transmit torque, and the flywheel end of the diesel engine 1-01 is connected to the hydraulic transmission box through a connecting flange. 1-03 is rigidly connected as a whole; the hydraulic transmission box 1-03 includes 1 hydraulic torque converter, 2 couplings, 1 hydraulic brake and 4 hydraulic elements in total, and the diesel engine 1-01 The free end drives the auxiliary generator hydraulic pump 1-05 and the cooling hydraulic pump 1-06 through the elastic coupling 2 1-04, and the auxiliary generator hydraulic pump 1-06 drives through the hydraulic motor 2-01 and the control valve Block drives the auxiliary generator 1-09; the auxiliary generator 1-09 is installed on the frame through the elastic rubber shock absorber of the suspension system, and the hydraulic motor 2-01 is connected to the auxiliary generator 1-09 through the elastic coupling torque.

The installation frame includes a first beam 1-301, a second beam 1-302, a first longitudinal beam 1-303 and a second longitudinal beam 1-304, and the first beam 1-303 includes an upper convex portion 1-501 , the second beam 1-304 includes a lower concave portion 1-502, the first longitudinal beam 1-303 and the second longitudinal beam 1-304 are arranged between the upper convex portion and the lower concave portion, the diesel engine is installed On the first longitudinal beam 1-303 and the second longitudinal beam 1-304, the hydraulic transmission box 1-03 is installed below the upper protrusion.

The power package also includes diesel engine auxiliary systems, including intake system, exhaust system, fuel system, engine oil system, intercooling system, transmission oil system, high temperature water system and low temperature water system.

The cooling and heat dissipation unit 2 is installed on the roof of the EMU through an elastic rubber shock absorber, and the hydraulic motor 2-01 drives the fan 2-02 to cool the high-temperature water and low-temperature water, and then the high-temperature water cools the cylinder liner and transmission oil of the diesel engine, and the low-temperature water Cool the pressurized air, hydraulic oil and auxiliary generator 1-09, wherein the transmission oil and hydraulic oil complete heat exchange through the transmission oil heat exchanger 1-18 and hydraulic oil heat exchanger 1-10 respectively, and the hydraulic oil is stored in the hydraulic oil tank In 1-14, the pressurized air passes through the water-to-air cooler 1-08 to complete the heat exchange.

The invention discloses a split-type internal combustion liquid transmission power package for an EMU, in which a diesel engine and a hydraulic transmission box are installed on the same frame, the layout is compact and reasonable, the installation space is saved, and the weight of the whole vehicle is reduced. The hydraulic drive auxiliary power generation system is added to meet the auxiliary power demand of the whole vehicle.

Both the first longitudinal beam 1-303 and the second longitudinal beam 1-304 include a first longitudinal portion 1-311, a connecting portion 1-312 and a second longitudinal portion 1-313, and the first longitudinal portion 1-311 It is fixedly connected with the upper convex part, the second longitudinal part 1-313 is fixedly connected with the lower concave part, and the connecting part 1-312 is inclined from top to bottom, from both sides to the middle and connects the first longitudinal part. Section 1-311 and a second longitudinal section 1-312.

In this embodiment, the first longitudinal part 1-311 and the second longitudinal part 1-312 are parallel to the longitudinal beam, the connecting part 1-312 forms a certain angle with the longitudinal part, and the horizontal first longitudinal part 1-311 and the second longitudinal part The longitudinal part 1-312 is convenient for installing parts and has better load-bearing capacity. The upper convex part, the lower concave part, and the connecting parts on both sides form a frame to fix the diesel engine and the hydraulic transmission box, the structure is firm, and the space under the car is effectively used.

Both the first beam and the second beam are plate-welded box beams, and the two ends of the beam are connected with V-shaped rubber shock absorbers. The middle part of the beam 1-302 is convex upward, forming the upper convex part 1-501. The first beam is a concave beam, which can effectively support the weight of the diesel engine and the hydraulic transmission box, and can also play a certain supporting effect in the case of bolt failure. The second beam is a convex beam, which not only can be connected to the hydraulic transmission box through the suspension installation method, but also can make more flexible use of the limited space. Both the first longitudinal beam and the second longitudinal beam are round tube beams, the suspension system includes a first shock absorber and a second shock absorber, and the diesel engine is installed on the first shock absorber through the first shock absorber. On the two longitudinal parts, the hydraulic transmission box is suspended and installed below the upper convex part through the second shock absorber, the first shock absorber is a cylindrical rubber shock absorber, and the second shock absorber The shock absorber is a conical rubber shock absorber.

The installation frame also includes a third longitudinal beam 1-305 and a fourth longitudinal beam 1-306 arranged between the first beam and the second beam, and the third longitudinal beam 1-305 and the fourth longitudinal beam 1-306 are respectively arranged on both sides of the first longitudinal beam 1-303 and the second longitudinal beam 1-304; the fifth longitudinal beam 1-307 and the sixth longitudinal beam 1-308 are arranged on the second transverse beam One end of the fifth longitudinal beam 1-307 and the sixth longitudinal beam 1-308 are fixedly connected to the concave portion, and the other end extends to a side away from the first cross beam.

The fifth longitudinal beam 1-307 and the sixth longitudinal beam 1-308 are provided with the auxiliary generator 1-09, exhaust muffler 1-11, water-air cooler 1-08, hydraulic oil heat exchanger, high-temperature water temperature control valve 1-12, low-temperature water temperature control valve 1-13 and hydraulic oil tank 1-14, and air intake filters 1-15 are fixed on the third longitudinal beam and the fourth longitudinal beam, A fuel filter 1-16 is installed on the fourth longitudinal beam, and an electric control box and a transmission oil heat exchanger are respectively installed under both ends of the first beam;

Both ends of the first beam 1-301 and the second beam 1-302 are provided with V-shaped rubber shock absorbers 1-403, and the installation frame is suspended on the V-shaped rubber shock absorbers 1-403. Below the floor surface of the EMU.

The cooling and heat dissipation unit 2 includes a hydraulic motor 2-01, a fan 2-02, a low-temperature radiator and a high-temperature radiator, the cooling hydraulic pump 1-06 drives the hydraulic motor 2-01, and the hydraulic motor 2-01 Driving the fan 2-02, the fan 2-02 is used to cool the low-temperature radiator 2-03 and the high-temperature radiator 2-04;

The high-temperature water in the high-temperature radiator 2-04 is used to cool the transmission oil in the diesel engine and the transmission oil heat exchanger, and the low-temperature water in the low-temperature radiator 2-03 is used to cool the boosters of the diesel engine in turn. compressed air, the cooling auxiliary generator 1-09 and the hydraulic oil in the hydraulic oil heat exchanger 1-10.

Specifically, the flywheel end of the diesel engine 1-01 drives the hydraulic transmission box through an elastic coupling, and the free end drives the auxiliary generator hydraulic pump 1-05 and cooling hydraulic pump 1-06 through an elastic coupling, and the auxiliary generator The hydraulic pump 1-05 drives the auxiliary generator 1-09 through hydraulic oil, and the cooling hydraulic pump 1-06 drives the cooling hydraulic motor 2-01.

The hydraulic motor 2-01 in the roof cooling device drives the fan 2-02 to cool the low-temperature water in the low-temperature radiator and the high-temperature water in the high-temperature radiator, and then the high-temperature water cools the diesel engine 1-01 and the transmission oil heat exchanger 1 The transmission oil in -07, the low-temperature water cools the diesel charge air through the water-air cooler 1-08, then cools the auxiliary generator 1-09, and cools the hydraulic oil through the hydraulic oil heat exchanger 1-10, and the cooled hydraulic pressure Oil is drawn into the auxiliary generator hydraulic pump 1-05 and the cooling hydraulic pump 1-06.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (7)

1. A split-type internal combustion liquid transmission power pack for an EMU, comprising a power transmission unit, a cooling and heat dissipation unit, and an oil-water pipeline connecting the power transmission unit and the cooling and heat dissipation unit;

   It is characterized in that the power transmission unit includes a diesel engine, a diesel engine auxiliary system, a hydraulic transmission box, an auxiliary generator, an auxiliary generator hydraulic pump, a cooling hydraulic pump, an installation frame and a suspension system;

   The flywheel end of the diesel engine is connected to the hydraulic transmission box through an elastic coupling to transmit torque, and the flywheel end of the diesel engine is rigidly connected with the hydraulic transmission box through a connecting flange; the free end of the diesel engine passes through The second elastic coupling drives the auxiliary generator hydraulic pump and the cooling hydraulic pump, and the auxiliary generator hydraulic pump drives the auxiliary generator;

   The installation frame includes a first beam, a second beam, a first longitudinal beam and a second longitudinal beam, the first beam includes an upper convex portion, the second beam includes a lower concave portion, the first longitudinal beam and the second longitudinal beam The two longitudinal beams are arranged between the upper convex part and the lower concave part, the diesel engine is installed on the first longitudinal beam and the second longitudinal beam, and the hydraulic transmission box is installed under the upper convex part.
2. A split type internal combustion liquid transmission power pack for an EMU according to claim 1, wherein the first longitudinal beam and the second longitudinal beam both include a first longitudinal portion, a connecting portion and a second longitudinal portion, The first longitudinal part is fixedly connected to the upper convex part, the second longitudinal part is fixedly connected to the lower concave part, and the connecting part is inclined from top to bottom and connects the first longitudinal part and the second longitudinal part. department.
3. According to claim 2, a split type internal combustion liquid transmission power pack for EMUs, characterized in that, both the first beam and the second beam are plate-welded box beams, and the first longitudinal beam and the second The longitudinal beams are all round tube beams, the suspension system includes a first-stage shock absorber and a second-stage shock absorber, and the diesel engine and hydraulic transmission box are installed on the installation frame through the first-stage shock absorber above, the installation frame is suspended under the car body through the second stage shock absorber;

   The first stage shock absorber includes a cylindrical rubber shock absorber and a conical rubber shock absorber, the cylindrical rubber shock absorber is arranged under the diesel engine for supporting the diesel engine, and the conical rubber shock absorber The shock absorber is arranged above the hydraulic transmission box for suspending the hydraulic transmission box;

   The second stage shock absorber is a V-shaped rubber shock absorber.
4. A split type internal combustion liquid transmission power pack for an EMU according to claim 1, wherein the installation frame further includes a third longitudinal beam and a second beam arranged between the first beam and the second beam. Four longitudinal beams, the third longitudinal beam and the fourth longitudinal beam are respectively arranged on both sides of the first longitudinal beam and the second longitudinal beam; the fifth longitudinal beam and the sixth longitudinal beam are arranged on the second transverse beam One end of the fifth longitudinal beam and the sixth longitudinal beam is fixedly connected to the lower recess, and the other end extends to a side away from the first cross beam.
5. According to claim 4, a split type internal combustion liquid transmission power pack for EMUs, characterized in that the auxiliary generator is provided on the fifth longitudinal beam and the sixth longitudinal beam, and an exhaust silencer is also provided. water-to-air cooler hydraulic oil heat exchanger, high-temperature water temperature control valve, low-temperature water temperature control valve and hydraulic oil tank, the third and fourth longitudinal beams are fixed with intake filters, and the fourth A fuel filter is installed on the longitudinal beam, and an electric control box and a transmission oil heat exchanger are respectively installed under the two ends of the first beam.
6. According to claim 1, a split internal combustion fluid transmission power pack for EMUs, characterized in that, the cooling and heat dissipation unit includes a hydraulic motor, a fan, a low-temperature radiator and a high-temperature radiator, and the cooling hydraulic pump drives the Described hydraulic motor, described hydraulic motor drives described fan, and described fan is used for cooling described low-temperature radiator and high-temperature radiator;

   The high-temperature water in the high-temperature radiator is used to cool the diesel engine and the transmission oil in the transmission oil heat exchanger, and the low-temperature water in the low-temperature radiator is used to cool the supercharged air of the diesel engine, the cooling Hydraulic oil in auxiliary generators and hydraulic oil heat exchangers.
7. According to claim 1, a split type internal combustion liquid transmission power pack for EMUs is characterized in that the hydraulic pump of the auxiliary generator drives the auxiliary generator through a hydraulic motor, and the hydraulic pump of the auxiliary generator is controlled by the hydraulic pump. The diesel engine is driven, and the hydraulic motor is controlled to rotate at a constant speed through a hydraulic valve block; the hydraulic motor is connected to the auxiliary generator through an elastic coupling.

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