A suspension and installation device for a transmission gearbox of a railway engineering vehicle

Abstract

The present invention discloses a suspension mounting device for a transmission gearbox of a railway engineering vehicle, which relates to the technical field of railway engineering vehicles. The device includes two groups of mounting seats (2) fixedly connected to two opposite side surfaces of the transmission gearbox (1), a bearing seat (3) sleeved and connected to the end of a connecting shaft (2-3) of the mounting seat (2), a rubber bushing (10) sleeved between the connecting shaft (2-3) and a bushing mounting hole (t-7) of the bearing seat (3), and a threaded base (4) fixedly connected to the bottom surface of the bearing seat (3). The bottom surface of the threaded base (4) is fixed on a frame beam (5). The transmission gearbox (1) is detachably connected to the mounting seat (2), and the center of gravity (t-3) of the transmission gearbox assembly is located between the rubber bushings (10). The suspension mounting device for the transmission gearbox of the railway engineering vehicle has a simple mounting structure and strong versatility, and can not only effectively isolate vibration and avoid deflection vibration, but also limit impact.

Description

Technical Field

[0001] The present invention relates to the technical field of railway engineering vehicles, and particularly to a suspension and mounting device for a transmission gearbox of a railway engineering vehicle. Background Art

[0002] The efficient operation of the vast railway network relies on the regular maintenance of railway lines by railway engineering vehicles. The transmission gearbox is an indispensable gear transmission device for power transmission in railway engineering vehicles.

[0003] Due to limitations such as construction methods, working devices, and overall vehicle power configurations, the transmission gearbox is connected to other prime movers or transmission gearboxes through universal drive shafts. During operation, the transmission gearbox is in a multi-vibration environment of its own rotation and overall vehicle operation. On the other hand, due to the operating characteristics of railway vehicles, there is a large longitudinal impact on on-vehicle equipment at the moment of vehicle decoupling. Therefore, the installation of the transmission gearbox needs to fully consider the vibration and impact characteristics of railway vehicles. It is necessary to effectively isolate vibration to prevent fatigue damage of components, avoid generating deflection vibration, which leads to a sharp reduction in the service life of the drive shaft connected to the transmission gearbox, and effectively limit impact to ensure the driving and operation safety of the vehicle.

[0004] Existing railway engineering vehicles install the transmission gearbox on the vehicle frame through threaded bases, shock absorbers, etc. It can provide good vibration isolation for the operation of the gearbox. The key technical points lie in the design of the shock absorber structure, the arrangement of shock absorbers, and the design of the threaded base structure. Currently, most use "cup"-shaped rubber shock absorbers, and the suspension mounting seat is a complex plate combination structure. This installation form cannot effectively prevent longitudinal impact and deflection vibration due to its own structural characteristics.

[0005] In summary, in view of the actual needs of railway engineering vehicles, developing a suspension mounting seat for a transmission gearbox that can effectively isolate vibration, avoid deflection vibration, and limit impact is an urgent problem that needs to be solved by those skilled in the art at present. Summary of the Invention

[0006] The purpose of the present invention is to provide a suspension and mounting device for a transmission gearbox of a railway engineering vehicle. The suspension and mounting device for the transmission gearbox of the railway engineering vehicle has a simple installation structure and strong versatility, and can effectively isolate vibration, avoid deflection vibration, and limit impact.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] A suspension and installation device for a transmission gearbox of a railway engineering vehicle, comprising two groups of mounting seats fixedly connected to two opposite sides of the transmission gearbox respectively, a bearing seat sleeved and connected to the end of the connecting shaft of the mounting seat, a rubber bushing sleeved between the connecting shaft and the bushing mounting hole of the bearing seat, and a threaded base fixedly connected to the bottom surface of the bearing seat, the bottom surface of the threaded base being fixed on the frame beam, the transmission gearbox being detachably connected to the mounting seat, and the center of gravity of the transmission gearbox assembly being located between the rubber bushings.

[0009] Optionally, the mounting seat includes a bottom plate fittingly connected to the outer side of the transmission gearbox, a rib plate fixedly connected to the inner side of one end of the bottom plate, and a connecting shaft connecting the other ends of the two rib plates, and the inner bushing mounting hole of the rubber bushing is sleeved and fixed on the shaft end of the connecting shaft.

[0010] Optionally, the upper edge of the bottom plate is bent inwards, the upper edge corner of the rib plate is equal to the bending angle of the bottom plate, and the bottom plate and the rib plate are welded.

[0011] Optionally, the side surface of the transmission gearbox has a threaded hole, the bottom plate has a mounting bottom hole, and a first bolt passes through the mounting bottom hole of the bottom plate and is connected to the threaded hole of the transmission gearbox.

[0012] Optionally, the connecting shaft is a stepped shaft, the diameter of the middle part of the shaft is larger than the diameter of the shaft end, the other end of the rib plate has a connecting hole, the connecting hole is sleeved on the middle part of the shaft, and the outside of the rib plate is locked by a stop washer, the outer diameter of the stop washer being larger than the diameter of the bushing mounting hole of the bearing seat.

[0013] Optionally, the end face of the connecting shaft has a threaded hole, the inner bushing mounting hole is installed at the two shaft ends of the connecting shaft, a washer is attached to the end face of the rubber bushing, and a third bolt is screwed into the threaded hole on the end face of the connecting shaft, the diameter of the washer being larger than the diameter of the inner bushing mounting hole.

[0014] Optionally, the connection between the stop washer, the rubber bushing and the bearing seat is detachable.

[0015] Optionally, the bottom of the bearing seat has a positioning groove, the top of the threaded base has an X-direction stop groove matching the positioning groove, and the bottom positioning groove of the bearing seat is installed in the X-direction stop groove of the threaded base.

[0016] Optionally, both ends of the top of the threaded base have Y-direction stop grooves, the Y-direction stop grooves and the X-direction stop grooves are in a cross shape, the positioning groove penetrates the X-direction of the bearing seat, the length of the positioning groove is equal to the length of the X-direction stop groove, and both ends of the bearing seat are clamped in the Y-direction stop grooves of the threaded base.

[0017] Optionally, the bearing seat is fixed to the threaded base by a second bolt, and the threaded base is fixed to the frame beam by welding. The distance between the two frame beams on both sides is adjustable.

[0018] The beneficial effects of the present invention are as follows. The suspension mounting device for a transmission gearbox of a railway engineering vehicle includes two sets of mounting seats, a bearing seat, rubber bushings, and a threaded base. The two sets of mounting seats are fixedly connected to two opposite sides of the transmission gearbox. The bearing seat is sleeved and connected to the end of the connecting shaft of the mounting seat. The rubber bushing is sleeved between the connecting shaft and the bushing mounting hole of the bearing seat, that is, the inner bushing mounting hole is mounted at both ends of the connecting shaft of the mounting seat, and the outer mounting surface of the bushing is mounted in the bushing mounting hole of the bearing seat. The top surface of the threaded base is fixedly connected to the bottom surface of the bearing seat, and the bottom surface of the threaded base is fixed to the frame beam, thereby fixing the transmission gearbox to the frame.

[0019] The rubber bushing limits the X-direction displacement of the transmission gearbox. The rubber bushing can not only effectively isolate vibration, avoid deflection vibration, but also limit impact. At the same time, by adjusting the length of the rubber bushing, the X-direction mounting position of the transmission gearbox is adjusted, realizing the adjustment of the center of gravity of the transmission gearbox assembly in the X direction, ensuring that the center of gravity of the transmission gearbox assembly is located between the rubber bushings, and effectively reducing the swing of the transmission gearbox.

[0020] The suspension mounting device for a transmission gearbox of a railway engineering vehicle provided by the present invention has a simple structure, is convenient to install, and has strong versatility; it can limit the X-direction displacement of the transmission gearbox, and at the same time ensure the vibration of the transmission gearbox in the Y direction and Z direction, effectively reducing the swing of the transmission gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a suspension mounting device for a transmission gearbox of a railway engineering vehicle provided by a specific embodiment of the present invention; [[ID=Z19]]

[0023] Figure 2 is Figure 1 the front view of;

[0024] Figure 3 is Figure 1 the side view of;

[0025] Figure 4 is Figure 3 the cross-sectional view at A-A in;

[0026] Figure 5 Schematic diagram of the installation of the transmission gearbox;

[0027] Figure 6 is Figure 5 the front view of;

[0028] Figure 7 is Figure 5 the side view of;

[0029] Figure 8 is Figure 6 the sectional view at B - B in;

[0030] Figure 9 Schematic diagram of the structure of the bearing seat;

[0031] Figure 10 Schematic diagram of the structure of the threaded base;

[0032] Figure 11 Schematic diagram of the structure of the rubber bushing; [[ID=۳۵]]

[0033] Figure 12 is the sectional view of the rubber bushing.

[0034] The markings in the attached drawings are as follows:

[0035] Transmission gearbox 1; Mounting seat 2; Bearing seat 3; Threaded base 4; Frame beam 5; First bolt 6; Second bolt 7; Washer 8; Third bolt 9; Rubber bushing 10; Base plate 2 - 1; Rib plate 2 - 2; Connecting shaft 2 - 3; Stop washer 2 - 4; Mounting bottom hole t - 1; First threaded hole t - 2; Center of gravity of the transmission gearbox assembly t - 3; Y - direction spigot t - 4; X - direction spigot t - 5; Positioning groove t - 6; Bushing mounting hole t - 7; Bolt mounting hole t - 8; Second threaded hole t - 9; Inner mounting hole of the bushing t - 10; Outer mounting surface of the bushing t - 11; Bending angle of the base plate A1; Axial Z - direction positioning dimension L - 1; Axial length L - 2; Axial Y - direction positioning dimension L - 3; Thickness of the stop washer L - 4; Y - direction mounting distance for the installation of the transmission gearbox L - 5; Frame beam Y - direction span L - 6; X - direction mounting distance for the installation of the transmission gearbox L - 7; First clearance L - 9; Second clearance L - 10; Diameter of the shaft end φL - 11; Diameter of the shaft middle part φL - 12; Outer diameter of the stop washer φL - 13; Diameter of the bushing mounting hole of the bearing seat φL - 14. Specific embodiments

[0036] The core of the present invention is to provide a suspension mounting device for a transmission gearbox of a railway engineering vehicle. The mounting structure of this suspension mounting device for a transmission gearbox of a railway engineering vehicle is simple and has strong versatility. It can not only effectively isolate vibration and avoid deflection vibration, but also limit impact.

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 to 12 , Figure 1 , which is a schematic structural diagram of a suspension and mounting device for a transmission gearbox of a railway engineering vehicle provided by a specific embodiment of the present invention; Figure 2 is Figure 1 the front view of

[0039] Figure 3 is Figure 1 the side view of Figure 4 is Figure 3 the sectional view taken along line A-A in Figure 5 is the installation schematic diagram of the transmission gearbox; Figure 6 is Figure 5 the front view of Figure 7 is Figure 5 the side view of Figure 8 is Figure 6 the sectional view taken along line B-B in Figure 9 is the schematic structural diagram of the bearing seat; Figure 10 is the schematic structural diagram of the threaded base; Figure 11 is the schematic structural diagram of the rubber bushing; Figure 12 is the sectional view of the rubber bushing.

[0040] In a specific embodiment, the suspension and mounting device for a transmission gearbox of a railway engineering vehicle provided by the present invention includes two groups of mounting seats 2 fixedly connected to two opposite side surfaces of the transmission gearbox 1, a bearing seat 3 sleeved on the end of the connecting shaft 2-3 of the mounting seat 2, a rubber bushing 10 sleeved between the connecting shaft 2-3 and the bushing mounting hole t-7 of the bearing seat 3, and a threaded base 4 fixedly connected to the bottom surface of the bearing seat 3. The bottom surface of the threaded base 4 is fixed on the frame beam 5. The transmission gearbox 1 is detachably connected to the mounting seat 2, and the center of gravity t-3 of the transmission gearbox assembly is located between the rubber bushings 10.

[0041] In the above structure, the suspension and mounting device for a transmission gearbox of a railway engineering vehicle includes two groups of mounting seats 2, a bearing seat 3, a rubber bushing 10, and a threaded base 4. The two groups of mounting seats 2 are fixedly connected to two opposite side surfaces of the transmission gearbox 1.

[0042] The bearing seat 3 is connected to the end of the connecting shaft 2-3 of the mounting seat 2, and the rubber bushing 10 is installed between the connecting shaft 2-3 and the bushing mounting hole t-7 of the bearing seat 3, that is, the bushing mounting inner hole t-10 is installed at both ends of the connecting shaft 2-3 of the mounting seat 2, and the bushing outer mounting surface t-11 is installed in the bushing mounting hole t-7 of the bearing seat 3.

[0043] The top surface of the threaded base 4 is fixedly connected to the bottom surface of the bearing seat 3 , and the bottom surface of the threaded base 4 is fixed to the frame beam 5 , thereby fixing the transmission gear box 1 to the frame.

[0044] The transmission gearbox's X-axis displacement is limited by rubber bushings 10, effectively isolating the gearbox from vibration and preventing deflection, while also limiting impact. Adjusting the length of these bushings also adjusts the X-axis mounting position of the transmission gearbox 1, allowing the center of gravity t-3 of the transmission gearbox assembly to be adjusted in the X direction. This ensures that the center of gravity t-3 lies between the rubber bushings 10, effectively reducing gearbox swing.

[0045] The transmission gearbox suspension and mounting device for railway engineering vehicles provided by the present invention has a simple structure, is easy to install, and has strong versatility. It can limit the X-axis displacement of the transmission gearbox while ensuring the vibration of the transmission gearbox in the Y and Z directions, effectively reducing the swing of the transmission gearbox.

[0046] Based on the above-mentioned specific embodiments, the mounting base 2 includes a base plate 2-1 that is fitted and connected to the side of the outer transmission gear box 1, a rib plate 2-2 whose one end is fixedly connected to the inner side of the base plate 2-1, and a connecting shaft 2-3 that is connected to the other ends of the rib plates 2-2 on both sides. The bushing mounting inner hole t-10 of the rubber bushing 10 is fixed to the shaft end of the connecting shaft 2-3.

[0047] In some specific embodiments, the mounting base 2 is designed as a plate-and-shaft structure, comprising a base plate 2-1, ribs 2-2, and a connecting shaft 2-3. The outer side of the base plate 2-1 is fitted and connected to the side of the transmission gearbox 1. The connection surface is flat and tightly fitted, providing good integrity and reducing vibration. One end of the rib 2-2 is fixedly connected to the inner side of the base plate 2-1, and the connecting shaft 2-3 is connected to the other ends of the ribs 2-2 on either side. The mounting base 2, ribs 2-2, and connecting shaft 2-3 form a single unit, resulting in low vibration and excellent stability.

[0048] The bushing mounting inner hole t-10 of the rubber bushing 10 is fixed to the shaft end of the connecting shaft 2-3. Preferably, the bushing mounting inner hole t-10 of the rubber bushing 10 is transitionally matched with the shaft end of the connecting shaft 2-3, which is convenient for connection and can reduce shaking.

[0049] Based on the above specific embodiments, the upper edge of the bottom plate 2-1 is bent inward, the upper edge corner of the rib plate 2-2 is equal to the bending angle A1 of the bottom plate, and the bottom plate 2-1 and the rib plate 2-2 are welded and connected.

[0050] In some specific embodiments, the upper edge of the bottom plate 2-1 is bent away from the side of the transmission gearbox 1, and the upper edge of the bottom plate 2-1 does not contact the side of the transmission gearbox 1, reducing the wear and damage of the bottom plate 2-1 to the transmission gearbox 1.

[0051] The upper edge corner of the rib plate 2-2 is equal to the bending angle A1 of the bottom plate. In other words, the upper edge of the rib plate 2-2 is inserted into the bending angle A1 of the bottom plate, and there is no gap at the connection between the rib plate 2-2 and the bottom plate 2-1, with relatively high connection strength. The bottom plate 2-1 and the rib plate 2-2 are welded and connected with full welding, and the welding seam is relatively long, so the connection is firm.

[0052] Based on the above specific embodiments, the side of the transmission gearbox 1 has a threaded hole, the bottom plate 2-1 has a mounting bottom hole, and the first bolt 6 passes through the mounting bottom hole of the bottom plate 2-1 and is connected to the threaded hole of the transmission gearbox 1 to fixedly connect the mounting seat 2 and the transmission gearbox 1. The mounting seat 2 and the transmission gearbox 1 are connected by the first bolt 6, which is a detachable connection, and the mounting position of the mounting seat 2 relative to the transmission gearbox 1 can be adjusted to adjust the positions of the transmission gearbox 1 in the X direction, Y direction, and Z direction.

[0053] Based on the above specific embodiments, the connecting shaft 2-3 is a stepped shaft, the diameter φL-12 of the middle part of the shaft is larger than the diameter φL-11 of the end part of the shaft, the other end of the rib plate 2-2 has a connecting hole, the connecting hole is sleeved on the middle part of the shaft, and the outside of the rib plate 2-2 is locked by a retaining washer 2-4, and the outer diameter φL-13 of the retaining washer is larger than the diameter φL-14 of the bearing housing bushing mounting hole.

[0054] In some specific embodiments, the connecting shaft 2-3 is a stepped shaft, including the middle part of the shaft and the end part of the shaft, and the diameter φL-12 of the middle part of the shaft is larger than the diameter φL-11 of the end part of the shaft. The other end of the rib plate 2-2 has a connecting hole, the inner diameter of the connecting hole is the same as the diameter φL-12 of the middle part of the shaft, the connecting hole is sleeved on the middle part of the shaft, and the connecting hole and the middle part of the shaft are not easy to rotate. The Z-direction positioning dimension L-1 of the shaft can be adjusted by adjusting the distance between the connecting shaft 2-3 and the mounting bottom hole t-1 of the bottom plate 2-1, that is, adjusting the height of the center of gravity t-1 of the transmission gearbox relative to the mounting planes of the rubber bushings 10 of the transmission gearbox suspension mounting device.

[0055] The retaining washer 2-4 is sleeved on the middle part of the shaft, the inner diameter of the retaining washer 2-4 is the same as the diameter φL-12 of the middle part of the shaft, the retaining washer 2-4 contacts the outside of the rib plate 2-2, and the rib plate 2-2 is locked by the retaining washer 2-4 to fix the rib plate 2-2 and the connecting shaft 2-3.

[0056] The outer diameter φL-13 of the stop washer is larger than the diameter φL-14 of the mounting hole of the bearing housing bushing, and the mounting hole of the bearing housing bushing will not pass through the stop washer 2-4. The bearing housing and the rubber bushing 10 abut against the side wall of the stop washer 2-4, which facilitates the installation and positioning of the rubber bushing 10. Preferably, the side end face of the stop washer 2-4 is flush with the stepped end face of the connecting shaft 2-3, and the bearing housing and the rubber bushing 10 abut against the stepped end face of the connecting shaft 2-3, making the positioning safer and more reliable and reducing the cumulative error.

[0057] On the basis of the above specific embodiments, the end face of the connecting shaft 2-3 has a threaded hole. The inner mounting hole t-10 of the bushing is installed at both ends of the shaft of the connecting shaft 2-3. The washer 8 is attached to the end face of the rubber bushing 10. The third bolt 9 is screwed into the threaded hole on the end face of the connecting shaft 2-3, and the diameter of the washer 8 is larger than the diameter of the inner mounting hole t-10 of the bushing.

[0058] In some specific embodiments, the inner mounting hole t-10 of the bushing is installed at both ends of the connecting shaft 2-3 of the mounting seat 2, and the outer mounting surface t-11 of the bushing is installed in the inner mounting hole t-7 of the bearing housing 3. Threaded holes t-2 are designed at both ends of the connecting shaft 2-3. The third bolt 9 is screwed into the threaded hole on the end face of the connecting shaft 2-3 and is fixed by the third bolt 9 and the washer 8, which is convenient for connection.

[0059] On the basis of the above specific embodiments, the stop washer 2-4, the rubber bushing 10, and the bearing housing 3 are detachably connected.

[0060] In some specific embodiments, the suspension mounting device of the transmission gearbox can adjust the X-direction mounting distance L-7 of the transmission gearbox to adjust the center of gravity t-3 of the transmission gearbox to be located between the rubber bushings 10 of the suspension mounting seat of the transmission gearbox.

[0061] The first gap L-9 and the second gap L-10 between the mounting seat 2 and the bearing housing 3 are adjusted by adjusting the thickness L-4 of the stop washer.

[0062] On the basis of the above specific embodiments, the bottom of the bearing housing 3 has a positioning groove t-6, and the top of the threaded base 4 has an X-direction stop t-5 that matches the positioning groove t-6. The bottom positioning groove t-6 of the bearing housing 3 is installed in the X-direction stop t-5 of the threaded base 4.

[0063] In some specific embodiments, the bottom positioning groove t-6 of the bearing housing 3 is installed in the X-direction stop t-5 of the threaded base 4. The suspension mounting device limits the X-direction movement of the transmission gearbox 1 through the stop washer 2-4, the bearing housing 3, the positioning groove t-6, and the X-direction stop t-5. The first gap L-9 and the second gap L-10 can limit the X-axis movement of the transmission gearbox.

[0064] On the basis of the above respective specific embodiments, both ends of the top of the threaded base 4 are provided with Y-direction stop mouths t-4. The Y-direction stop mouths t-4 and the X-direction stop mouths t-5 are in a cross shape. The positioning groove t-6 runs through the X-direction of the bearing seat 3, and the length of the positioning groove t-6 is equal to the length of the X-direction stop mouth t-5. Both ends of the bearing seat 3 are clamped in the Y-direction stop mouths t-4 of the threaded base 4 to limit the Y-axis movement of the transmission gearbox. The bearing seat 3 is fixed to the threaded base 4 by the second bolt 7 to limit the Z-axis movement of the transmission gearbox, ensuring the vibration of the transmission gearbox in the Y-direction and Z-direction, and effectively reducing the swing of the transmission gearbox.

[0065] On the basis of the above respective specific embodiments, the bearing seat 3 is fixed to the threaded base 4 by the second bolt 7, and the threaded base 4 is fixed to the vehicle frame beam 5 by welding, and the distance between the two vehicle frame beams 5 can be adjusted.

[0066] In some specific embodiments, the bearing seat 3 and the threaded base 4 are fixed by the second bolt 7, which is convenient for connection. Preferably, the threaded base 4 is fixed to the vehicle frame beam 5 of the railway engineering machinery by welding. The Y-direction mounting distance L-5 of the suspension mounting seat of the transmission gearbox can be adjusted according to the Y-direction span L-6 of the vehicle frame beam 5.

[0067] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0068] The above has introduced in detail the suspension mounting device for the transmission gearbox of the railway engineering vehicle provided by the present invention. Specific examples are used herein to elaborate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A suspension and installation device for a transmission gearbox of a railway engineering vehicle, characterized in that It includes two sets of mounting seats (2) fixedly connected to two opposite sides of the transmission gearbox (1) respectively, a bearing seat (3) sleeved and connected to the end of the connecting shaft (2-3) of the mounting seat (2), a rubber bushing (10) sleeved between the connecting shaft (2-3) and the bushing mounting hole (t-7) of the bearing seat (3), and a threaded base (4) fixedly connected to the bottom surface of the bearing seat (3). The bottom surface of the threaded base (4) is fixed on the frame beam (5). The transmission gearbox (1) is detachably connected to the mounting seat (2). The center of gravity (t-3) of the transmission gearbox assembly is located between the rubber bushings (10). The bottom of the bearing seat (3) has a positioning groove (t-6). The top of the threaded base (4) has an X-direction stop (t-5) matching the positioning groove (t-6). The bottom positioning groove (t-6) of the bearing seat (3) is installed in the X-direction stop (t-5) of the threaded base (4). Both ends of the top of the threaded base (4) have Y-direction stops (t-4). The Y-direction stops (t-4) and the X-direction stops (t-5) are in an I shape. The positioning groove (t-6) runs through the bearing seat (3) in the X direction. The length of the positioning groove (t-6) is equal to the length of the X-direction stop (t-5). Both ends of the bearing seat (3) are stuck in the Y-direction stops (t-4) of the threaded base (4). The bearing seat (3) is fixed to the threaded base (4) by a second bolt (7). The threaded base (4) is fixed to the frame beam (5) by welding. The distance between the two frame beams (5) can be adjusted.

2. The suspension and mounting device for the transmission gearbox of a railway engineering vehicle according to claim 1, characterized in that, The mounting seat (2) includes a bottom plate (2-1) attached to the side of the outer transmission gearbox (1), a rib plate (2-2) with one end fixedly connected to the inner side of the bottom plate (2-1), and a connecting shaft (2-3) connected to the other ends of the two rib plates (2-2). The inner bushing mounting hole (t-10) of the rubber bushing (10) is sleeved and fixed on the shaft end of the connecting shaft (2-3).

3. The suspension and mounting device for the transmission gearbox of a railway engineering vehicle according to claim 2, characterized in that, The upper edge of the bottom plate (2-1) bends inwards. The upper edge corner of the rib plate (2-2) is equal to the bending angle (A1) of the bottom plate. The bottom plate (2-1) is welded to the rib plate (2-2).

4. The suspension and mounting device for the transmission gearbox of a railway engineering vehicle according to claim 2, characterized in that, The side of the transmission gearbox (1) has a threaded hole. The bottom plate (2-1) has a mounting bottom hole. A first bolt (6) passes through the mounting bottom hole of the bottom plate (2-1) and is connected to the threaded hole of the transmission gearbox (1).

5. The suspension and mounting device for the transmission gearbox of a railway engineering vehicle according to claim 2, characterized in that, The connecting shaft (2-3) is a stepped shaft. The diameter (φL-12) in the middle of the shaft is larger than the diameter (φL-11) at the shaft end. The other end of the rib plate (2-2) has a connecting hole. The connecting hole is sleeved on the middle of the shaft. The outside of the rib plate (2-2) is locked by a stop washer (2-4). The outer diameter (φL-13) of the stop washer is larger than the diameter (φL-14) of the bushing mounting hole of the bearing seat.

6. The suspension and mounting device for the transmission gearbox of a railway engineering vehicle according to claim 5, wherein, The end face of the connecting shaft (2-3) has a threaded hole. The inner hole (t-10) for bushing installation is installed at both axial ends of the connecting shaft (2-3). The washer (8) is attached to the end face of the rubber bushing (10). The third bolt (9) is screwed into the threaded hole on the end face of the connecting shaft (2-3). The diameter of the washer (8) is larger than the diameter of the inner hole (t-10) for bushing installation.

7. The suspension and installation device for the transmission gearbox of a railway engineering vehicle according to claim 6, characterized in that The stop washer (2-4), the rubber bushing (10), and the bearing housing (3) are detachably connected.

Images