Bogie frame and locomotive

Abstract

The utility model relates to a bogie frame and a locomotive, and relates to the technical field of railway vehicles. The bogie frame comprises a frame main body, a traction part and a connecting part, a protruding part protruding downwards is arranged in the middle of the framework body. The traction part is arranged on the framework main body, the traction part comprises two traction seats which are arranged at intervals in the width direction, the two traction seats are located on the protruding part and are in bilateral symmetry about the framework main body, and the traction seats are constructed to be connected with rotating arms of the traction device; the connecting part is arranged on the framework main body, the connecting part and the traction part are arranged at an interval in the length direction, the connecting part comprises two connecting seats arranged at an interval in the width direction, the two connecting seats are bilaterally symmetrical about the framework main body, and the connecting seats are configured to be connected with a suspender of a traction device. According to the technical scheme, the problem that an existing bogie frame is generally suitable for a central low-position traction device and not suitable for a traction device of a permanent magnet direct drive freight locomotive can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of railway vehicles, in particular to a bogie frame and locomotive. BACKGROUND

[0002] The freight electric locomotive is characterized by large axle load and large power, and requires that the adhesion utilization rate of the bogie be higher than 90%, and the maximum exertion of the locomotive traction power is ensured through the traction device and the suspension system. In recent years, the use of permanent magnet direct drive freight locomotives is gradually widespread, and the permanent magnet direct drive freight locomotive adopts a direct drive wheel set technology, which cancels the traditional transmission gear box, so that the drive structure is simplified.

[0003] The radial dimension of the motor of the drive structure of the permanent magnet direct drive freight locomotive is usually large, and basically occupies all the space above the lower limit of the axle; therefore, the traction rod of the traction device of the permanent magnet direct drive freight locomotive is arranged below the side beam of the frame, and in combination with the traditional double-side parallel pull rod, the rotation center of the bogie is still the geometric center of the bogie, but the existing bogie frame is generally applicable to the traditional central low traction traction device, and is not applicable to the traction device of the permanent magnet direct drive freight locomotive, and cannot meet the functional requirements. SUMMARY

[0004] The utility model embodiment provides a kind of bogie frame and locomotive, can solve the problem that existing bogie frame is generally applicable to central low traction device, not applicable to the traction device of permanent magnet direct drive freight locomotive.

[0005] In a first aspect, the utility model embodiment provides a kind of bogie frame, comprising:

[0006] Frame body, the middle part of the frame body is provided with the protruding part that projects downward;

[0007] Traction part, it is set on the frame body, the traction part includes two traction seats spaced apart along the width direction, two the traction seat is located on the protruding part and about the frame body left-right symmetry, the traction seat is configured to be connected with the rotation arm of traction device;And

[0008] Connecting portion, it is set on the frame body, the connecting portion and the traction part are spaced apart in length direction, the connecting portion includes two connecting seats spaced apart along the width direction, two the connecting seat is about the frame body left-right symmetry, the connecting seat is configured to be connected with the hanger rod of the traction device.

[0009] In one embodiment, the traction seat includes:

[0010] Vertical plate, one end is set on the frame body;

[0011] A traction flange is arranged on the upright plate away from one end of the upright plate.

[0012] In one embodiment, the traction flange is provided with a middle pin hole and a traction through hole group respectively arranged on both sides of the middle pin hole, wherein the traction through hole group comprises a plurality of traction through holes arranged along the length direction.

[0013] In one embodiment, the traction seat further comprises a plurality of reinforcing plates respectively connected with the upright plate and the frame body.

[0014] In one embodiment, the connecting seat is arranged along a preset direction, wherein the preset direction is a radial direction with the center of the frame body as the center.

[0015] In one embodiment, the connecting seat comprises:

[0016] A bottom plate arranged on the frame body;

[0017] A plurality of bosses arranged along the preset direction, and a plurality of mounting holes respectively arranged on the plurality of bosses;

[0018] Wherein, the plurality of mounting holes are arranged along the preset direction.

[0019] In one embodiment, the frame body comprises:

[0020] Two side beams arranged along the width direction, and the protruding portions are arranged at the middle portions of the side beams;

[0021] Two end beams respectively arranged at two ends of the side beams, and two ends of the end beam are respectively connected with the two side beams;

[0022] A cross beam, two ends of the cross beam are respectively connected with the protruding portions, and the cross beam is arranged between the two end beams.

[0023] In one embodiment, the connecting portion is arranged on the side beam.

[0024] In one embodiment, the end beam is provided with a downward protruding protruding section.

[0025] In the second aspect, the utility model embodiment provides a locomotive, comprising the bogie frame as described above.

[0026] Compared with the prior art, the utility model discloses the advantages that the left and right symmetrical traction seat provides the structural basis for the swing arm of the installation traction device, the left and right symmetrical connecting seat provides the structural basis for the boom of the installation traction device, compared with the existing bogie frame universally applicable to the central low traction device, the utility model not only can satisfy the interface requirement of the permanent magnet direct drive freight locomotive bogie of bilateral cable-stayed traction mode, realizes the function demand of the bogie low traction and central traction of the permanent magnet direct drive freight locomotive, but also facilitates the installation and dismounting of the traction device. BRIEF DESCRIPTION OF DRAWINGS

[0027] In the following, the utility model will be described in more detail based on the embodiments and with reference to the drawings.

[0028] Figure 1 It is the front view of the bogie frame provided by an embodiment of the utility model,

[0029] Figure 2 It is Figure 1 It is the three-dimensional structure schematic view of the bogie frame provided by an embodiment,

[0030] Figure 3 It is Figure 1 It is the bottom view of the bogie frame provided by an embodiment,

[0031] Figure 4 It is Figure 1 It is the connection schematic view of the bogie frame and the traction device provided by an embodiment.

[0032] Reference signs:

[0033] 10, frame main body, 110, central through hole, 120, side beam, 1201, protruding part, 130, end beam, 1301, protruding section, 140, cross beam,

[0034] 20, traction part, 210, traction seat, 2101, vertical plate, 2102, traction flange, 2103, middle pin hole, 2104, traction through hole, 2105, reinforcing plate,

[0035] 30, connecting part, 310, connecting seat, 3101, bottom plate, 3102, boss, 3103, mounting hole,

[0036] 40, flat traction rod,

[0037] 50, inclined traction rod,

[0038] 60, boom,

[0039] 70, swing arm,

[0040] 80, car body traction seat. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings.

[0042] Freight electric locomotives are characterized by high axle load and high power, requiring bogie adhesion utilization to exceed 90%, and ensuring maximum traction power through traction devices and suspension systems. In recent years, the use of permanent magnet direct-drive freight locomotives has become increasingly widespread. These locomotives employ direct-drive wheelset technology, eliminating the traditional transmission gearbox and simplifying the drive structure.

[0043] The radial dimension of the motor in the drive structure of permanent magnet direct-drive freight locomotives is typically large, occupying almost all the space below the axle clearance and above the limit. Existing freight locomotives usually employ a central low-position traction device, with a straight traction rod passing through the bottom of the motor and an inclined traction rod supported at the end of the frame by a swing arm, forming a two-section longitudinal connection structure between the bogie center and the car body to achieve good lateral dynamic performance. Therefore, the traction device of a permanent magnet direct-drive freight locomotive places the traction rod below the side beam of the frame, combined with traditional double-sided parallel tie rods, so that the rotation center of the bogie remains the geometric center of the bogie. However, the existing bogie frame is not suitable for the traction device of a permanent magnet direct-drive freight locomotive and cannot meet the functional requirements.

[0044] Example 1

[0045] like Figure 1 , Figure 2 As shown, in order to solve the above-mentioned technical problems, this application provides a bogie frame, including a frame body 10, a traction unit 20, and a connecting unit 30; the frame body 10 has a downwardly protruding protrusion 1201 in the middle; the traction unit 20 is disposed on the frame body 10, and the traction unit 20 includes two traction seats 210 arranged at intervals along the width direction. The two traction seats 210 are located on the protrusion 1201 and are symmetrical about the frame body 10. The traction seats 210 are configured to be connected to the swing arm 70 of the traction device; the connecting unit 30 is disposed on the frame body 10, and the connecting unit 30 and the traction unit 20 are arranged at intervals along the length direction. The connecting unit 30 includes two connecting seats 310 arranged at intervals along the width direction. The two connecting seats 310 are symmetrical about the frame body 10. The connecting seats 310 are configured to be connected to the boom 60 of the traction device.

[0046] As can be seen from the above, by setting the left-right symmetrical traction seat 210 to provide a structural basis for the installation of the traction device of the swing arm 70, and setting the left-right symmetrical connecting seat 310 to provide a structural basis for the installation of the traction device of the boom 60, compared with the existing bogie frame which is generally applicable to the central low traction device and does not provide an interface for the double-side inclined traction mode, the utility model not only can meet the interface requirements of the double-side inclined traction mode of the permanent magnet direct drive freight locomotive bogie, realize the function requirements of the low traction and central traction of the permanent magnet direct drive freight locomotive bogie, but also facilitate the installation and disassembly of the traction device.

[0047] It should be noted that, as shown in Figure 4 , the traction device includes two swing arms 70, two flat traction rods 40, two inclined traction rods 50, two booms 60 and a connecting rod; the two swing arms 70 are one-to-one corresponding to the two traction seats 210, the swing arm 70 is a triangular structure, the three corners of the swing arm 70 are a first end, a second end and a third end, and the first end of the swing arm 70 is hinged to the corresponding traction seat 210; the two booms 60 are one-to-one corresponding to the two connecting seats 310, one end of the boom 60 is hinged to the corresponding connecting seat 310; the two flat traction rods 40 are one-to-one corresponding to the two swing arms 70, one end of the flat traction rod 40 is hinged to the second end of the corresponding swing arm 70 and the other end is hinged to the boom 60; one end of the inclined traction rod 50 is hinged to the car body traction seat 80 and the other end is hinged to the end of the flat traction rod 40 away from the swing arm 70; the two ends of the connecting rod are hinged to the third end of the swing arm 70; in addition, the specific structure and working principle of the traction device are prior art, and the present application will not be described here.

[0048] It should also be noted that, as shown in Figure 2 , the length direction is parallel to the X direction, and the width direction is parallel to the Y direction.

[0049] It should also be noted that the frame body 10 is a left-right symmetrical and front-back symmetrical structure.

[0050] Example two

[0051] As Figure 1 , Figure 2As shown in the drawings, in order to solve the above technical problems, the application provides a bogie frame, which comprises a frame body 10, a traction part 20 and a connecting part 30; the middle part of the frame body 10 is provided with a downward protruding protruding part 1201; the traction part 20 is arranged on the frame body 10, the traction part 20 comprises two traction seats 210 arranged at intervals along the width direction, the two traction seats 210 are located on the protruding part 1201 and are symmetrical about the frame body 10 left and right, and the traction seat 210 is configured to be connected with a rotating arm 70 of a traction device; the connecting part 30 is arranged on the frame body 10, the connecting part 30 and the traction part 20 are arranged at intervals along the length direction, the connecting part 30 comprises two connecting seats 310 arranged at intervals along the width direction, the two connecting seats 310 are symmetrical about the frame body 10 left and right, and the connecting seat 310 is configured to be connected with a boom 60 of the traction device.

[0052] As can be seen from the above, by arranging the left and right symmetrical traction seats 210 to provide a structural basis for installing the rotating arm 70 of the traction device, and arranging the left and right symmetrical connecting seats 310 to provide a structural basis for installing the boom 60 of the traction device, compared with the existing bogie frame which is generally applicable to the central low traction device and does not provide an interface for the double-side cable-stayed traction mode, the utility model not only can meet the interface requirements of the double-side cable-stayed traction mode of the permanent magnet direct drive freight locomotive bogie, realize the function requirements of the low traction and central traction of the permanent magnet direct drive freight locomotive bogie, but also facilitates the installation and disassembly of the traction device.

[0053] It should be noted that, as Figure 4 shown, the traction device comprises two rotating arms 70, two flat traction rods 40, two inclined traction rods 50, two booms 60 and a connecting rod; the two rotating arms 70 are respectively one-to-one corresponding to the two traction seats 210, the rotating arm 70 is of a triangular structure, the three corners of the rotating arm 70 are respectively a first end, a second end and a third end, and the first end of the rotating arm 70 is hinged to the corresponding traction seat 210; the two booms 60 are respectively one-to-one corresponding to the two connecting seats 310, one end of the boom 60 is hinged to the corresponding connecting seat 310; the two flat traction rods 40 are respectively one-to-one corresponding to the two rotating arms 70, one end of the flat traction rod 40 is hinged to the second end of the corresponding rotating arm 70 and the other end is hinged to the boom 60; one end of the inclined traction rod 50 is hinged to the vehicle body traction seat 80 and the other end is hinged to the end of the flat traction rod 40 away from the rotating arm 70; the two ends of the connecting rod are respectively hinged to the third end of the rotating arm 70; in addition, the specific structure and working principle of the traction device are prior art, and the application will not be described here.

[0054] It should be further noted that, as Figure 2 shown, the length direction is parallel to the X direction, and the width direction is parallel to the Y direction.

[0055] It should be further noted that the frame body 10 is of a left-right symmetrical and front-back symmetrical structure.

[0056] As shown in Figure 2 some embodiments, the traction seat 210 comprises a vertical plate 2101 and a traction flange 2102; one end of the vertical plate 2101 is arranged on the frame body 10; the traction flange 2102 is arranged on the vertical plate 2101 away from the one end of the vertical plate 2101.

[0057] The vertical plate 2101 and the traction flange 2102 provide a structural basis for the installation of the slewing arm 70 of the traction device.

[0058] It should be noted that the height of the traction seat 210 is determined by the installation height of the slewing arm 70 of the traction device and the height of the protruding part 1201 of the frame body 10, for example, the height of the traction seat 210 is 200 mm.

[0059] It should be further noted that the vertical plate 2101 is connected to the frame body 10 by welding, and the traction flange 2102 is connected to the vertical plate 2101 by welding.

[0060] As shown in Figure 2 some embodiments, the traction flange 2102 is provided with a middle pin hole 2103 and a traction through hole group respectively located on both sides of the middle pin hole 2103, wherein the traction through hole group comprises a plurality of traction through holes 2104 arranged at intervals along the length direction.

[0061] The middle pin hole 2103 is provided for the pin shaft to pass through, and the traction through hole 2104 is provided for the bolt to pass through, so that the slewing arm 70 is rotatably installed on the traction flange 2102 by using the pin shaft and the bolt.

[0062] It should be noted that the middle pin hole 2103 is located at the geometric center of the traction flange 2102, and the two traction through hole groups are symmetric about the middle pin hole 2103.

[0063] As shown in Figure 2 some embodiments, the traction seat 210 further comprises a plurality of reinforcing plates 2105, and the reinforcing plates 2105 are respectively connected to the vertical plate 2101 and the frame body 10.

[0064] The reinforcing plates 2105 improve the strength and reliability of the connection between the traction seat 210 and the frame body 10, thereby ensuring the reliability of the traction device after installation.

[0065] It should be noted that the reinforcing plate 2105 is a right triangle, and two right angle sides of the reinforcing plate 2105 are respectively connected to the vertical plate 2101 and the frame body 10; the connection mode of the reinforcing plate 2105 to the vertical plate 2101 and the frame body 10 includes but is not limited to welding.

[0066] As shown in Figure 2 ,Figure 3 As shown, in some embodiments, the connection seat 310 is arranged along a preset direction, where the preset direction is a radial direction centered on the center of the frame body 10.

[0067] By arranging the connection seat 310 in the radial direction centered on the center of the frame body, the rotation center of the bogie frame remains the geometric center of the bogie frame. Thus, when installing a traction device on the bogie frame, the longitudinal traction effect and lateral dynamic performance obtained by the bilateral inclined pull traction method can still be the same as those of the traditional central low-position traction method.

[0068] It should be noted that the center of the frame body 10 is the geometric center of the frame body 10. Both connection seats 310 are located in the radial direction centered on the center of the frame body 10 and are arranged circumferentially at intervals around the center of the frame body 10.

[0069] As Figure 2 As shown, in some embodiments, the connection seat 310 includes a bottom plate 3101 and a plurality of bosses 3102; the bottom plate 3101 is arranged on the frame body 10; the plurality of bosses 3102 are arranged at intervals along the preset direction, and mounting holes 3103 are respectively arranged on the plurality of bosses 3102; among them, the plurality of mounting holes 3103 are arranged at intervals along the preset direction.

[0070] By arranging the plurality of bosses 3102 at intervals along the preset direction, the mounting holes 3103 on the bosses 3102 are also distributed in the radial direction centered on the center of the frame body 10, so that the centers of the mounting holes 3103 are distributed on a circle centered on the geometric center of the frame body 10. By providing the bosses 3102 and the mounting holes 3103, it is used for the screw installation of the suspension rod 60 of the traction device.

[0071] It should be noted that as Figure 2 As shown, the number of bosses 3102 is two.

[0072] As Figure 2 As shown, in some embodiments, the frame body 10 includes two side beams 120, two end beams 130, and a cross beam 140; the two side beams 120 are arranged at intervals in the width direction, and the convex portion 1201 is located in the middle of the side beam 120; the two end beams 130 are respectively located at the two ends of the side beam 120, and the two ends of the end beam 130 are respectively connected to the two side beams 120; the two ends of the cross beam 140 are respectively connected to the convex portion 1201, and the cross beam 140 is located between the two end beams 130.

[0073] By providing the side beams 120, the end beams 130, and the cross beam 140, the frame body 10 has a structure in the shape of a Chinese character 'Ri' with a downward convex middle part, and two relatively independent spaces are formed for installing direct drive motors.

[0074] It should be noted that the side beam 120, the end beam 130 and the transverse beam are connected by means including but not limited to welding and integral molding.

[0075] It should also be noted that the distance between the transverse beam 140 and the end beam 130 is set according to the required suspension space of the direct drive motor; the height of the protruding part 1201 is determined by the lower limit and the height of the turning arm 70 of the traction device and the traction pin, as shown in Figure 4 , and requires that the distance d1 between the traction device and the rail surface is not less than 120mm.

[0076] It should also be noted that a central through hole 110 can be provided on the transverse beam 140 as needed, and the center of the central through hole 110 is the center of the frame body 10.

[0077] As shown in Figure 2 , Figure 3 , in some embodiments, the connecting part 30 is provided on the side beam 120.

[0078] The side beam 120 is provided to provide a structural basis for installing the connecting part 30.

[0079] As shown in Figure 2 , in some embodiments, the end beam 130 is provided with a downward protruding protruding section 1301.

[0080] The protruding section 1301 is provided to facilitate the suspension and transverse positioning of the direct drive motor.

[0081] Embodiment three

[0082] The utility model embodiment further provides a locomotive, including the bogie frame of any embodiment of the utility model, and further has all the technical effects brought by the technical scheme of the above-mentioned embodiments.

[0083] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steering frame, characterized in that, include: The main frame has a downwardly protruding section in the middle. A traction unit, disposed on the main frame, includes two traction seats spaced apart along its width. The two traction seats are located on the protrusion and are symmetrical about the main frame. The traction seats are configured to connect to the rotating arm of a traction device. A connecting part is disposed on the main body of the frame. The connecting part and the traction part are arranged at intervals in the length direction. The connecting part includes two connecting seats arranged at intervals in the width direction. The two connecting seats are symmetrical about the main body of the frame. The connecting seats are configured to be connected to the rod of the traction device.

2. The steering frame according to claim 1, characterized in that, The traction seat includes: An upright plate, one end of which is mounted on the main body of the frame; A traction flange is located at the end of the vertical plate away from the vertical plate.

3. The steering frame according to claim 2, characterized in that, The traction flange is provided with a central pin hole and traction through holes located on both sides of the central pin hole, wherein the traction through hole group includes a plurality of traction through holes arranged at intervals along the length direction.

4. The bogie frame according to claim 3, characterized in that, The traction seat also includes multiple reinforcing plates, which are respectively connected to the upright plate and the main frame.

5. The bogie frame according to any one of claims 1-4, characterized in that, The connecting seat is arranged along a preset direction, wherein the preset direction is a radial direction with the center of the main frame as the center.

6. The bogie frame according to claim 5, characterized in that, The connector includes: The base plate is mounted on the main frame. Multiple protrusions are arranged at intervals along the preset direction, and each of the multiple protrusions is provided with a mounting hole; The mounting holes are arranged at intervals along the preset direction.

7. The bogie frame according to any one of claims 1-4, characterized in that, The main structure includes: Two side beams are arranged at intervals in the width direction, and the protrusion is located in the middle of the side beam; Two end beams are located at the two ends of the side beams, and the two ends of the end beams are respectively connected to the two side beams; A crossbeam, the two ends of which are respectively connected to the protrusion, and the crossbeam is located between the two end beams.

8. The bogie frame according to claim 7, characterized in that, The connecting part is provided on the side beam.

9. The bogie frame according to claim 7, characterized in that, The end beam is provided with a downwardly protruding section.

10. A locomotive, characterized in that, Includes the bogie frame as described in any one of claims 1-9.

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