A driving axle for a beam transport vehicle

Abstract

This application relates to a drive axle for a beam transport vehicle, comprising: an electric drive axle housing, the axle housing having a central section for accommodating and mounting a differential, and the electric drive axle housing having equalizing cylinder mounting seats, lateral stop seats, and longitudinal stop seats located on the left and right sides of the axle housing; and an electric drive assembly, comprising an integrated housing connected to the axle housing, within which a reducer and a drive motor are mutually connected, the output end of the reducer being connected to the differential. This application's electric drive assembly features an integrated housing connected to the axle housing, with a reducer and drive motor mutually connected within the integrated housing. After integration of the electric drive assembly and the electric drive axle housing, the beam transport vehicle can be configured with the number of drive axles according to transportation needs. The modular design of the beam transport vehicle provides strong equipment adaptability, avoids the impact of centralized transmission system failures on the overall vehicle operation, and improves the reliability of the beam transport vehicle.

Description

Technical Field

[0001] This application relates to the field of axle technology, and in particular to a drive axle for a beam transport vehicle. Background Technology

[0002] A beam transporter is a precast beam transport machine specially designed for the erection of highway bridges. It consists of two independent operating mechanisms (main vehicle and auxiliary vehicle). The main vehicle is equipped with a diesel engine that provides driving force to the whole vehicle after being reduced in speed by a reducer. It is equipped with hydraulic steering and air brake functions, and generally has multiple forward and reverse gears. The auxiliary vehicle is equipped with only a single-cylinder diesel engine to provide power for hydraulic steering.

[0003] In related technologies, with social development, beam transport vehicles use diesel engines that are reduced in speed by a reducer to provide driving force for the whole vehicle. This not only results in high energy consumption, high noise, high cost, and serious pollution, but also makes it difficult to meet the efficiency and environmental protection requirements of engineering construction. Construction units have put forward new requirements for equipment, demanding lower equipment costs and reduced operating costs. Summary of the Invention

[0004] This application provides a drive axle for a beam transport vehicle to solve the problems of high cost and serious pollution in related technologies where beam transport vehicles use diesel engines that are reduced in speed by a reducer to provide driving force for the whole vehicle.

[0005] This application provides a drive axle for a beam transport vehicle, including:

[0006] An electric drive axle housing, wherein the middle part of the electric drive axle housing is provided with an axle package for accommodating and installing a differential, and the electric drive axle housing is provided with a balance cylinder mounting seat, a lateral stop seat and a longitudinal stop seat located on the left and right sides of the axle package;

[0007] An electric drive assembly includes an integrated housing connected to the axle package. The integrated housing houses a reducer and a drive motor that are driven together. The output end of the reducer is drivenly connected to the differential.

[0008] In some embodiments: one end of the bridge bag is an open end, and the circumference of the open end of the bridge bag is provided with a threaded hole for connecting the integrated housing. The integrated housing is provided with a mounting flange for closing the open end of the bridge bag, and the mounting flange is connected to the bridge bag by bolts.

[0009] In some embodiments: the balancing cylinder mounting base is fixed vertically to the top of the electric drive axle housing, and the balancing cylinder mounting base includes a front support lug and a rear support lug symmetrically spaced along the axial direction of the electric drive axle housing, and both the front support lug and the rear support lug are provided with pin holes.

[0010] In some embodiments, lateral stop seats are provided on both the front side and the rear side of the electric drive axle housing. The lateral stop seat includes an arc-shaped baffle and a reinforcing plate. The arc-shaped baffle is fixed on the electric drive axle housing and its convex arc surface faces the axle housing. The reinforcing plate is fixed on the electric drive axle housing and is connected to the concave arc surface of the arc-shaped baffle.

[0011] In some embodiments, longitudinal stop seats are provided on both the front side and the rear side of the electric drive axle housing. The cross-section of the longitudinal stop seat is a "C" - shaped or "U" - shaped structure. The longitudinal stop seat is fixedly connected to the electric drive axle housing to jointly form a vertical channel.

[0012] In some embodiments, the longitudinal stop seats located on the left and right sides of the axle housing are respectively located inside the lateral stop seats, and the lateral stop seats are fixedly connected to the longitudinal stop seats.

[0013] In some embodiments, a half shaft connecting the differential is provided inside the electric drive axle housing. Wheel hubs connecting the half shafts are provided at both ends of the electric drive axle housing, and the wheel hubs are connected with brakes.

[0014] In some embodiments, a coolant inlet, a coolant outlet, and a cooling channel located inside the integrated housing are provided on the integrated housing. Both ends of the cooling channel are respectively connected to the coolant inlet and the coolant outlet.

[0015] In some embodiments, a mounting bracket for fixing the integrated housing is provided on the electric drive axle housing, and the mounting bracket is on the side close to the drive motor.

[0016] In some embodiments, the balance oil cylinder mounting seat, the lateral stop seat, and the longitudinal stop seat are welded to the electric drive axle housing or integrally cast.

[0017] The beneficial effects brought by the technical solutions provided in this application include:

[0018] The embodiment of this application provides a drive axle for a beam transporter. Since the drive axle for the beam transporter in this application is provided with an electric drive axle housing, a bridge housing for accommodating and installing a differential is provided in the middle of the electric drive axle housing, and balance oil cylinder mounting seats, lateral stop seats, and longitudinal stop seats are provided on the left and right sides of the bridge housing on the electric drive axle housing; an electric drive assembly, which includes an integrated housing connected to the bridge housing, and a reducer and a drive motor that are mutually传动连接 (the specific term for "传动连接" needs to be determined according to the actual mechanical transmission relationship, such as "transmission connection" or "drive connection") inside the integrated housing, and the output end of the reducer is transmission connected to the differential.

[0019] It should be noted that for the term "传动连接" in the last paragraph, it needs to be accurately determined according to the actual mechanical transmission relationship in the original text. The above translation uses a placeholder for now.Therefore, the drive axle for the beam transport vehicle of this application is provided with equalization cylinder mounting seats, lateral stop seats, and longitudinal stop seats on the left and right sides of the axle housing on the electric drive axle housing. The equalization cylinder mounting seats are used to connect the vehicle body and transmit vertical loads, the lateral stop seats are used to limit the lateral displacement of the vehicle body, and the longitudinal stop seats are used to transmit longitudinal loads to drive the vehicle body to move longitudinally, thereby positioning the vehicle body horizontally on the drive axle. The electric drive assembly is provided with an integrated housing connected to the axle housing. The integrated housing contains a reducer and a drive motor that are mutually connected. After the electric drive assembly and the electric drive axle housing are integrated, the beam transport vehicle can be configured with the number of drive axles according to transportation needs. The beam transport vehicle has a modular design, strong equipment adaptability, avoids the impact of centralized transmission system failure on the operation of the whole vehicle, and improves the reliability of the beam transport vehicle. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a top view of the structure of an embodiment of this application;

[0022] Figure 2 This is a front view of the electric drive bridge housing according to an embodiment of this application;

[0023] Figure 3 This is a top view of the electric drive bridge housing according to an embodiment of this application.

[0024] Figure label:

[0025] 1. Drive motor; 2. Reducer; 3. Electric drive axle housing; 4. Differential; 5. Wheel hub; 6. Brake; 31. Balance cylinder mounting base; 32. Lateral stop seat; 33. Longitudinal stop seat; 34. Axle housing. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] This application provides a drive axle for a beam transport vehicle, which solves the problems of high cost and serious pollution in related technologies where beam transport vehicles use diesel engines that are reduced in speed by a reducer to provide driving force for the whole vehicle.

[0028] See Figures 1 to 3 As shown in the figure, this application embodiment provides a drive axle for a beam transport vehicle, including:

[0029] The electric drive axle housing 3 has an axle bundle 34 in its middle for accommodating and mounting the differential 4. The electric drive axle housing 3 has a balance cylinder mounting seat 31, a lateral stop seat 32, and a longitudinal stop seat 33 located on the left and right sides of the axle bundle 34. The balance cylinder mounting seat 31 connects to the vehicle body via the balance cylinder and transmits vertical loads; the lateral stop seat 32 restricts the lateral displacement of the vehicle body; and the longitudinal stop seat 33 transmits longitudinal loads to drive the vehicle body longitudinally, thereby positioning the vehicle body horizontally on the drive axle.

[0030] The electric drive assembly includes an integrated housing connected to the axle housing 34. Within this housing are a reducer 2 and a drive motor 1, which are driven together. The output end of the reducer 2 is connected to the differential 4. The integrated design of the drive motor 1 and reducer 2 within the housing reduces the volume and size of the drive transmission system. The electric drive assembly is fixedly connected to the middle of the electric drive axle housing 3, and the output shaft of the reducer 2 is connected to the input gear of the differential 4.

[0031] The drive axle of the beam transport vehicle in this embodiment of the application is provided with equalization cylinder mounting seats 31, lateral stop seats 32 and longitudinal stop seats 33 on the electric drive axle housing 3 on the left and right sides of the axle housing 34. The equalization cylinder mounting seats 31 are used to connect the vehicle body and transmit vertical loads, the lateral stop seats 32 are used to limit the lateral displacement of the vehicle body, and the longitudinal stop seats 33 are used to transmit longitudinal loads to drive the vehicle body to move longitudinally, thereby positioning the vehicle body on the drive axle in the horizontal direction.

[0032] The electric drive assembly is equipped with an integrated housing connected to the axle housing 34. The integrated housing contains a reducer 2 and a drive motor 1 that are connected to each other. After the electric drive assembly is integrated with the electric drive axle housing 3, the number of drive axles of the beam transport vehicle can be configured according to the transportation needs, making the beam transport vehicle modular, with strong equipment adaptability, avoiding the impact of centralized transmission system failure on the operation of the whole vehicle, and improving the reliability of the beam transport vehicle.

[0033] In some alternative embodiments: see Figures 1 to 3 As shown in the figure, this application embodiment provides a drive axle for a beam transport vehicle. One end of the axle housing 34 of the drive axle is an open end, and the circumference of the open end of the axle housing 34 is provided with threaded holes for connecting to an integrated housing. The integrated housing is provided with a mounting flange that closes the open end of the axle housing 34, and the mounting flange is connected to the axle housing 34 by bolts.

[0034] The open end of the axle housing 34 in the embodiment of the present application is used for installing and disassembling the differential 4, and the open end of the axle housing 34 is closed by using the mounting flange provided on the integrated housing. The integrated housing facilitates connecting the reducer 2 to the differential 4, and at the same time, the differential 4 is located in a closed environment inside the axle housing 34, reducing production costs while increasing the service life of the differential 4.

[0035] In some alternative embodiments: Refer to Figures 1 to 3 As shown, the embodiment of the present application provides a drive axle for a girder transport vehicle. The equalizing cylinder mounting seat 31 of the drive axle for the girder transport vehicle is fixedly arranged vertically on the top of the electric drive axle housing 3. The equalizing cylinder mounting seat 31 includes a front support ear and a rear support ear symmetrically arranged at intervals along the axis direction of the electric drive axle housing 3, and pin holes are formed on both the front support ear and the rear support ear.

[0036] Pin holes are formed on both the front support ear and the rear support ear in the embodiment of the present application, which facilitates rotatably connecting the end of the equalizing cylinder to the front support ear and the rear support ear through a pin. The other end of the equalizing cylinder is connected to the vehicle body, and thus the vehicle body can be lifted up and down. Two equalizing cylinder mounting seats 31 are provided on the top of the electric drive axle housing 3, and the two equalizing cylinder mounting seats 31 are used for connecting two equalizing cylinders, so that the left and right sides of the electric drive axle housing 3 are evenly stressed.

[0037] In some alternative embodiments: Refer to Figures 1 to 3 As shown, the embodiment of the present application provides a drive axle for a girder transport vehicle. Transverse stop seats 32 are arranged on both the front side and the rear side of the electric drive axle housing 3 of the drive axle for the girder transport vehicle. The transverse stop seat 32 includes an arc-shaped baffle and a reinforcing plate. The arc-shaped baffle is fixed on the electric drive axle housing 3 and its convex arc surface faces the axle housing 34, and the reinforcing plate is fixed on the electric drive axle housing 3 and is connected to the concave arc surface of the arc-shaped baffle.

[0038] Transverse stop seats 32 are arranged on both the front side and the rear side of the electric drive axle housing 3 in the embodiment of the present application, that is, a total of four said transverse stop seats 32 are arranged on the electric drive axle housing 3. The four transverse stop seats 32 are divided into two groups and are respectively located on the left and right sides of the electric drive axle housing 3. The two transverse stop seats 32 in a group are symmetrically arranged with respect to the axis of the electric drive axle housing 3. The four transverse stop seats 32 are used for jointly limiting the vehicle body transversely (i.e., in the width direction of the vehicle body).

[0039] In some alternative embodiments: Refer to Figures 1 to 3 As shown, the embodiment of the present application provides a drive axle for a girder transport vehicle. Longitudinal stop seats 33 are arranged on both the front side and the rear side of the electric drive axle housing 3 of the drive axle for the girder transport vehicle. The cross-section of the longitudinal stop seat 33 is a "匚" - shaped or "U" - shaped structure, and the longitudinal stop seat 33 is fixedly connected to the electric drive axle housing 3 to jointly form a vertical channel. '

[0040] In this embodiment, longitudinal stop seats 33 are provided on both the front and rear sides of the electric drive axle housing 3, meaning that a total of four longitudinal stop seats 33 are provided on the electric drive axle housing 3. The four longitudinal stop seats 33 are arranged in groups of two on the left and right sides of the electric drive axle housing 3, with the two longitudinal stop seats 33 in each group symmetrically arranged about the axis of the electric drive axle housing 3. The four longitudinal stop seats 33 are used to limit the vehicle body in the common longitudinal direction (i.e., the length direction of the vehicle body) and transmit the power load of the drive axle to the vehicle body.

[0041] The longitudinal stop seats 33 located on the left and right sides of the axle housing 34 are respectively located inside the transverse stop seats 32. The transverse stop seats 32 and the longitudinal stop seats 33 are fixedly connected, and the transverse stop seats 32 and the longitudinal stop seats 33 are fixedly connected to each other, which improves the structural strength between the transverse stop seats 32 and the longitudinal stop seats 33. The equalizing cylinder mounting seat 31, the transverse stop seats 32 and the longitudinal stop seats 33 are welded to the electric drive axle housing 3 or integrally cast.

[0042] In some alternative embodiments: see Figures 1 to 3 As shown, this application embodiment provides a drive axle for a beam transport vehicle. The electric drive axle housing 3 of the beam transport vehicle is provided with a half shaft connected to a differential 4. Both ends of the electric drive axle housing 3 are provided with wheel hubs 5 connected to the half shafts, and the wheel hubs 5 are connected to brakes 6.

[0043] The integrated housing has a coolant inlet and a coolant outlet, as well as a cooling channel located within the integrated housing. The two ends of the cooling channel are connected to the coolant inlet and the coolant outlet, respectively. A mounting bracket for fixing the integrated housing is provided on the electric drive bridge housing 3, with the mounting bracket located near the drive motor 1.

[0044] Working principle

[0045] This application provides a drive axle for a beam transport vehicle. The drive axle for the beam transport vehicle of this application is equipped with an electric drive axle housing 3. The middle part of the electric drive axle housing 3 is provided with an axle package 34 for accommodating and installing a differential 4. The electric drive axle housing 3 is provided with a balance cylinder mounting seat 31, a lateral stop seat 32 and a longitudinal stop seat 33 located on the left and right sides of the axle package 34. The electric drive assembly includes an integrated housing connected to the axle package 34. The integrated housing is provided with a reducer 2 and a drive motor 1 that are mutually connected. The output end of the reducer 2 is connected to the differential 4.

[0046] Therefore, the drive axle for the beam transport vehicle of this application is provided with a balance cylinder mounting seat 31, a lateral stop seat 32 and a longitudinal stop seat 33 on the electric drive axle housing 3 located on the left and right sides of the axle housing. The balance cylinder mounting seat 31 is used to connect the vehicle body and transmit vertical loads, the lateral stop seat 32 is used to limit the lateral displacement of the vehicle body, and the longitudinal stop seat 33 is used to transmit longitudinal loads to drive the vehicle body to move longitudinally, thereby positioning the vehicle body on the drive axle in the horizontal direction.

[0047] The electric drive assembly is equipped with an integrated housing connected to the axle housing 34. The integrated housing contains a reducer 2 and a drive motor 1 that are connected to each other. After the electric drive assembly is integrated with the electric drive axle housing 3, the beam transport vehicle can be configured with the number of drive axles according to transportation needs. The beam transport vehicle has a modular design, strong equipment adaptability, avoids the impact of centralized transmission system failure on the operation of the whole vehicle, and improves the reliability of the beam transport vehicle.

[0048] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0049] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A drive axle for a beam transport vehicle, characterized in that The utility model relates to a kind of drive axle for beam transport vehicle, including: Electric drive axle housing (3), the middle part of the electric drive axle housing (3) is equipped with differential (4) and is installed bridge bag (34), the electric drive axle housing (3) is equipped with balance oil cylinder mounting seat (31) on the left and right sides of the bridge bag (34), transverse stop seat (32) and longitudinal stop seat (33); Electric drive assembly, the integrated shell is connected with the bridge bag (34), the integrated shell is equipped with reduction gear (2) and drive motor (1) in the mutual transmission connection, the output end of the reduction gear (2) is connected with differential (4).

2. The drive axle for beam transport vehicle according to claim 1, wherein: One end of the bridge bag (34) is an open end, and the circumference of the open end of the bridge bag (34) is provided with a threaded hole connected with the integrated shell, the integrated shell is provided with a mounting flange closing the open end of the bridge bag (34), and the mounting flange is connected with the bridge bag (34) through bolts.

3. The drive axle for beam transport vehicle according to claim 1, wherein: The balance oil cylinder mounting seat (31) is fixed in the vertical direction on the top of the electric drive axle housing (3), the balance oil cylinder mounting seat (31) includes front support ears and rear support ears symmetrically and spaced apart along the axis direction of the electric drive axle housing (3), and pin holes are formed in the front support ears and the rear support ears.

4. The drive axle for beam transport vehicle according to claim 1, wherein: The front side and the rear side of the electric drive axle housing (3) are provided with the transverse stop seat (32), the transverse stop seat (32) includes an arc-shaped baffle and a reinforcing plate, the arc-shaped baffle is fixed on the electric drive axle housing (3) and the convex arc surface thereof faces the bridge bag (34), and the reinforcing plate is fixed on the electric drive axle housing (3) and connected with the concave arc surface of the arc-shaped baffle.

5. The drive axle for beam transport vehicle according to claim 1, wherein: The front side of the electric drive axle housing (3) and the rear side are provided with the longitudinal stop seat (33), the cross section of the longitudinal stop seat (33) is a " " character-shaped or " U " character-shaped structure, and the longitudinal stop seat (33) is fixedly connected with the electric drive axle housing (3) to form a vertical channel.

6. The drive axle for beam transport vehicle according to claim 1, wherein: The longitudinal stop seats (33) on the left and right sides of the bridge bag (34) are respectively located on the inner side of the transverse stop seats (32), and the transverse stop seats (32) are fixedly connected with the longitudinal stop seats (33).

7. The drive axle for beam transport vehicle according to claim 1, wherein: The electric drive axle housing (3) is provided with a half shaft connected with the differential (4) in the electric drive axle housing (3), both ends of the electric drive axle housing (3) are provided with wheel hubs (5) connected with the half shaft, and the wheel hubs (5) are connected with brakes (6).

8. The drive axle for beam transport vehicle according to claim 1, wherein: The integrated shell is provided with a cooling liquid inlet and a cooling liquid outlet, and a cooling channel in the integrated shell, two ends of the cooling channel being communicated with the cooling liquid inlet and the cooling liquid outlet respectively.

9. The driving axle for a beam transport vehicle according to claim 1, characterized in that: The electric drive axle shell (3) is provided with a mounting bracket for fixing the integrated shell, the mounting bracket being close to one side of the driving motor (1).

10. The driving axle for a beam transport vehicle according to claim 1, characterized in that: The equalizing oil cylinder mounting seat (31), the transverse stop seat (32) and the longitudinal stop seat (33) are welded with the electric drive axle shell (3) or integrally cast.

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