Motor-driven transfer case assembly for engineering machinery

Abstract

The utility model provides a motor-driven transfer case assembly for engineering machinery, and belongs to the technical field of engineering machinery. The device comprises a driving motor and a transfer case, the driving motor is fixedly connected with the transfer case; a driving gear is arranged in the transfer case and is provided with a driving gear shaft; an opening is formed in the transfer case body corresponding to the driving gear; the driving gear shaft extends out of the opening and is connected with an output shaft of a driving motor; the transfer case is provided with two power take-off ports; the two ends of the driving gear are each meshed with one driven gear. And each driven gear is provided with a driven gear shaft, and each driven gear shaft extends out of the power take-off port and is connected with the gear pump. The transfer case is provided with the two power take-off ports, the transfer case is integrated with the driving motor, reasonable distribution of a gear pump of a hydraulic system is facilitated, the structure is more compact, and arrangement of the whole machine is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering instrument technical field, especially relate to a kind of engineering machinery motor drive transfer case assembly. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.

[0003] At present, most of the electric loader working systems use motor direct drive gear pump to realize the whole machine hydraulic system work, and four gear pumps need to be connected in sequence. Gear pump is to convert the rotating power of motor into the pressure and flow of hydraulic oil, and the working speed of gear pump is 0-2500r / min, only low-speed motor can be used, the mounting space of loader frame is limited, and low-speed motor is large in size and high in cost; At the same time, four gear pumps connected in sequence occupy large space, cannot be installed flexibly, and are inconvenient to install and maintain. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of engineering machinery motor drive transfer case assembly to solve the technical problems that the space of existing loader frame is limited, gear pump and motor installation occupy too large space, and cannot be arranged flexibly.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a kind of engineering machinery motor drive transfer case assembly, comprising:

[0007] Drive motor, transfer case;

[0008] The drive motor is fixedly connected with the transfer case;

[0009] The transfer case is internally provided with driving gear, and the driving gear has driving gear shaft;

[0010] The transfer case body corresponding to the driving gear is provided with opening;

[0011] The driving gear shaft extends out of the opening and is connected with the output shaft of drive motor;

[0012] Two power take-off ports are arranged on the transfer case;

[0013] The driving gear is engaged with one driven gear at each end;

[0014] Each driven gear has driven gear shaft, and each driven gear shaft extends out of the power take-off port and is connected with gear pump.

[0015] The drive motor is high-speed motor.

[0016] Two said power take-off ports are symmetrically arranged.

[0017] Each said driven gear corresponds to one said power take-off port.

[0018] Each said driven gear shaft connected gear pump is a first gear pump, the first gear pump is also connected in series with a second gear pump.

[0019] The shafts of the first gear pump and the second gear pump are directly connected through a shaft coupling or a spline, and the first gear pump is keyed connected with the driven gear shaft.

[0020] It also includes a transfer case fixing frame, the transfer case fixing frame is used for fixing the transfer case on the electric loader frame, and the number is two.

[0021] The transfer case fixing frame is of "L" type structure.

[0022] It also includes a driving motor fixing frame, the driving motor fixing frame is used for fixing the driving motor on the electric loader frame.

[0023] The driving motor fixing frame includes a base plate and a vertical plate, the vertical plate is vertically arranged on the base plate, the vertical plate is fixed with the driving motor through bolts, and each end of the base plate is provided with a fixing hole, and the base plate is fixed on the electric loader frame through bolts.

[0024] The technical scheme of the utility model has the following beneficial effects:

[0025] The transfer case has two power take-off ports, the transfer case is integrated with the driving motor, which is conducive to the reasonable distribution of the hydraulic system gear pump, and the structure is more compact, facilitating the overall machine arrangement.

[0026] The utility model adopts high-speed motor to drive the transfer case, compared with low-speed motor, high-speed motor is smaller in size and higher in working speed, can provide higher power output for the hydraulic system, and improves the working efficiency of the electric loader.

[0027] The transfer case and the driving motor are fixed by the transfer case fixing frame and the driving motor fixing frame, so that the transfer case and the driving motor can be stably installed on the electric loader frame.

[0028] The advantages of the additional aspects of the utility model will be partially given in the following description, some will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings accompanying the specification constitute part of this utility model and illustrate certain aspects of the utility model. The illustrative embodiments of the utility model and their description serve to explain the utility model without limiting the utility model unduly.

[0030] Figure 1 It is a front view of the engineering machinery motor drive transfer case assembly of the utility model.

[0031] Figure 2 It is a side view of the engineering machinery motor drive transfer case assembly of the utility model.

[0032] Figure 3 It is a top view of the engineering machinery motor drive transfer case assembly of the utility model.

[0033] Figure 4 It is a structure schematic view of the driving gear and two driven gears of the engineering machinery motor drive transfer case assembly of the utility model.

[0034] Figure 5 It is a transfer case structure schematic view of the engineering machinery motor drive transfer case assembly of the utility model.

[0035] Figure 6 It is a driving motor fixing frame three view of the engineering machinery motor drive transfer case assembly of the utility model.

[0036] Figure 7 It is a transfer case fixing frame structure three view of the engineering machinery motor drive transfer case assembly of the utility model.

[0037] Marked in the figure: 1, transfer case, 2, driving motor, 3, transfer case fixing frame, 31, short side, 32, long side, 33, fixed hole, 4, power take-off, 5, motor fixing frame, 51, base plate, 52, vertical plate, 53, support plate, 1-2, first bearing, 1-3, driven gear shaft, 1-4, second bearing, 1-5, first oil seal, 1-6, driving gear, 1-7, O-shaped sealing ring, 1-8, first driven gear, 1-9, second oil seal, 1-12, second driven gear. DETAILED DESCRIPTION

[0038] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as that generally understood by those skilled in the art to which the utility model belongs.

[0039] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model.

[0040] In the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0041] The utility model discloses a kind of engineering machinery motor drive transfer case assembly, such as Figure 1 AndFigure 2 As shown, it comprises: a drive motor 2, a transfer case 1; the drive motor 2 is fixedly connected with the transfer case 1; a driving gear 1-6 is arranged inside the transfer case 1, the driving gear 1-6 has a driving gear shaft; an opening is arranged on the transfer case 1 corresponding to the driving gear 1-6; the driving gear shaft extends out of the opening and is keyed connected with the output shaft of the drive motor 2; two power take-off ports 4 are arranged on the transfer case 1; the two ends of the driving gear 1-6 are respectively engaged with a driven gear; each driven gear has a driven gear shaft 1-3, and each driven gear shaft 1-3 extends out of the power take-off port 4 and is keyed connected with a gear pump.

[0042] The power take-off port 4 is used to divide part of the power of the transfer case 1, drive the gear pump through the driven gear shaft, and the gear pump provides hydraulic power for the actuator (boom, bucket, etc.) of the engineering machinery.

[0043] In a specific embodiment, the drive motor 2 is a high-speed motor, and the high-speed motor has a rotation speed ≥10000r / min, and the helical gear is used for speed reduction. Compared with a low-speed motor, the high-speed motor has a smaller size, a higher power density, and a lower running noise, and through gear speed reduction, a higher power output can be provided for the hydraulic system, and the working efficiency of the electric drive tripper is improved.

[0044] In a specific embodiment, bolt holes are arranged on the housing of the drive motor 2, and bolt holes are also arranged on the side of the transfer case 1 close to the drive motor 2, bolts are inserted into the corresponding bolt holes of the housing of the drive motor 2 and the transfer case 1, and the fixed connection between the drive motor 2 and the transfer case 1 is realized. The integration effect of the drive motor 2 and the transfer case 1 is realized, the mechanism of the drive motor 2 and the transfer case 1 is compact, and it is more conducive to actual installation. The number and position of the bolt holes can be set by those skilled in the art according to actual needs, and this place is not limited too much.

[0045] In a specific embodiment, a driving gear 1-6 is arranged inside the transfer case 1, the driving gear 1-6 has a driving gear shaft, and the driving gear and the driving gear shaft are integrally arranged and can move synchronously.

[0046] An opening is arranged on the transfer case 1 corresponding to the driving gear 1-6, the driving gear shaft extends out of the opening, and is keyed connected with the output shaft of the drive motor 2, the drive motor 2 outputs power through the output shaft of the drive motor 2, and the power is transmitted to the driving gear 1-6.

[0047] As shown in the figure, Figure 4 Each driven gear can rotate with the driving gear 1-6 to realize the effect of transmitting power from the driving gear 1-6 to the driven gear.

[0048] Each driven gear has a driven gear shaft 1-3, the driven gear and the driven gear shaft 1-3 are integrally arranged, and the two can rotate synchronously.

[0049] The power take-off 4 is arranged on the transfer box 1, and the two power take-off 4 are symmetrically arranged, each driven gear corresponds to a power take-off 4, the driven gear shaft 1-3 extends out of the power take-off 4 and is connected with the gear pump key, realizing the effect that the power of the driving motor 2 is transmitted to the gear pump through the driving gear 1-6 and the driven gear.

[0050] Preferably, each driven gear shaft 1-3 is connected with two gear pumps in series, which are a first gear pump and a second gear pump, and specifically: the shafts of the first gear pump and the second gear pump are directly connected through a shaft coupling or a spline, the first gear pump is connected with the driven gear shaft 1-3 through a key, so that the two gear pumps are compact in structure and good in synchronization effect.

[0051] In the embodiment, the four gear pumps are connected in series two by two, and two power take-off 4 are arranged, each power take-off 4 connects two gear pumps, compared with the prior art (four gear pumps connected in series), the number of gear pumps connected in series is reduced, the installation mode of the gear pump is more flexible, and the installation mode is more adaptable.

[0052] In specific embodiments, as shown in Figure 7 The number of the transfer box fixing frame 3 is two, each transfer box fixing frame 3 is of an "L" type structure, and the two are fixed on the two sides of the transfer box 1 through bolts, the two transfer box fixing frames 3 after being fixed are mirror-symmetric, the right side is of an "L" type structure, and the left side is of a mirror image "L" type structure. The long side 32 of the "L" type structure is fixed on the transfer box 1, a fixing hole 33 is formed in the short side 31, and the transfer box fixing frame 3 is fixed on the electric transloading vehicle frame through bolts. The transfer box fixing frame 3 is also provided with a support plate 53, the support plate 53 is of a right triangle structure, two right angle sides of the support plate 53 are respectively fixed with the long side 32 and the short side 31, and the support plate 53 plays a supporting role and increases the bearing capacity of the transfer box fixing frame 3. The support plate 53 can be provided with one or more, and the number and position of the support plate 53 can be flexibly set according to actual needs. In the embodiment, two support plates 53 are arranged on the transfer box fixing frame 3.

[0053] In specific embodiments, as shown in Figure 6As shown, the drive motor fixing frame 5 is used for fixing the drive motor 2 on the electric loader frame, the drive motor fixing frame 5 comprises a base plate 51 and a vertical plate 52, the vertical plate 52 is vertically arranged on the center line of the base plate 51 in the length direction, the vertical plate 52 is provided with an opening capable of accommodating and supporting the motor, and a plurality of bolt holes are arranged near the opening, the drive motor 2 is fixed through the bolt holes, the base plate 51 is provided with a fixing hole 33 at each end, and the base plate 51 is fixed on the electric loader frame through the bolt holes. A supporting plate 53 is further arranged between the base plate 51 and the vertical plate 52, the supporting plate 53 is in the structure of a right triangle, adjacent two right angles are fixed on the base plate 51 and the vertical plate 52 respectively, and the supporting plate 53 is used for improving the overall bearing capacity of the motor fixing frame 5, preventing the motor fixing frame 5 from deforming and prolonging the service life of the motor fixing frame 5. The supporting plate 53 can be provided with one or more, and the number and position of the supporting plate 53 can be flexibly arranged according to actual needs, and four supporting plates 53 are uniformly arranged on the motor fixing frame 5 in the embodiment, and two supporting plates 53 are arranged on each side of the vertical plate.

[0054] In a specific embodiment, as shown in the drawings, Figure 3 The fixing holes 33 arranged on the base plate 51 and the two short edges 31 of the transfer case fixing frame 3 are four fixed points, the integrated drive motor 2 and the transfer case 1 are fixed through the four fixed points, the drive motor 2 and the transfer case 1 can be more stably installed on the electric loader frame, and the stability of the device is improved.

[0055] In a specific embodiment, the two driven gears are a first driven gear 1-8 and a second driven gear 1-12, as shown in the drawings, Figure 5 The first oil seal 1-5 and the second oil seal 1-9 are arranged on the driving gear 1-6 and the left first driven gear 1-8 respectively, and an oil seal (not shown in the drawings) is also arranged on the right second driven gear 1-12, and the oil seals are used for sealing the gear lubricating oil of the driving gear 1-6 and the two driven gears of the transfer case 1.

[0056] The first bearing 1-2 mainly supports the first driven gear shaft 1-3, the inner hole of the first bearing 1-2 is matched with the first driven gear shaft 1-3, the corresponding part of the transfer case 1 is provided with a mounting hole, and the outer circle of the first bearing 1-2 is mounted in the mounting hole. The second driven gear 1-12 is the same as the first driven gear 1-8 and is also provided with a bearing for support (not shown in the drawings). The second bearing 1-4 mainly supports the driving gear shaft, the inner hole of the second bearing 1-4 is matched with the driving gear shaft, and the outer circle is mounted in the corresponding mounting hole of the transfer case 1. The O-shaped sealing ring 1-7 is matched with the inner hole of the driving gear shaft and the spline of the drive motor 2, so as to prevent the motor lubricating oil from entering the transfer case 1.

[0057] The working principle of the utility model:

[0058] The power transmission process of the driving motor in the utility model is: driving motor output end → driving gear shaft → driving gear → driven gear → driven gear shaft → gear pump → actuator. The driving motor is integrated with the transfer case, the overall structure is more compact, two power take-off ports are arranged on the transfer case, each power take-off port is connected with two gear pumps in series, the number of gear pumps in series is reduced, the installation of the gear pumps is more flexible and reasonable, and space is saved. The transfer case and the driving motor are fixed by the transfer case fixing frame and the driving motor fixing frame, so that the transfer case and the driving motor can be stably installed on the electric loader frame.

[0059] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A motor-driven transfer case assembly for engineering machinery, characterized in that, Including drive motor and transfer case; The drive motor is fixedly connected to the transfer case; The transfer case is equipped with a drive gear, and the drive gear has a drive gear shaft. The transfer case housing corresponding to the drive gear has an opening; The drive gear shaft extends out of the opening and is connected to the output shaft of the drive motor; The transfer case is equipped with two power take-off ports; Each end of the driving gear meshes with a driven gear; Each of the driven gears has a driven gear shaft, each driven gear shaft extending out of a power take-off port and connected to a gear pump.

2. The engineering machinery motor-driven transfer case assembly as described in claim 1, characterized in that, The drive motor is a high-speed motor.

3. The engineering machinery motor-driven transfer case assembly as described in claim 1, characterized in that, The two power take-off ports are arranged symmetrically.

4. The engineering machinery motor-driven transfer case assembly as described in claim 1, characterized in that, Each of the driven gears corresponds to one of the power take-off ports.

5. The engineering machinery motor-driven transfer case assembly as described in claim 1, characterized in that, Each of the driven gear shafts is connected to a first gear pump, and the first gear pump is also connected in series with a second gear pump.

6. The engineering machinery motor-driven transfer case assembly as described in claim 5, characterized in that, The shafts of the first gear pump and the second gear pump are directly connected by a coupling or spline, and the first gear pump is keyed to the driven gear shaft.

7. The engineering machinery motor-driven transfer case assembly as described in claim 1, characterized in that, It also includes a transfer case mounting bracket, which is used to fix the transfer case to the frame of the electric transfer locomotive; There are two of them.

8. The engineering machinery motor-driven transfer case assembly as described in claim 7, characterized in that, The transfer case mounting bracket has an "L" shaped structure.

9. The engineering machinery motor-driven transfer case assembly as described in claim 1, characterized in that, It also includes a drive motor mounting bracket, which is used to fix the drive motor to the frame of the electric transfer locomotive.

10. The engineering machinery motor-driven transfer case assembly as described in claim 9, characterized in that, The drive motor mounting bracket includes a base plate and a vertical plate. The vertical plate is vertically mounted on the base plate and is fixed to the drive motor by bolts. Each end of the base plate has a fixing hole, and the base plate is fixed to the electric transfer locomotive frame by bolts.

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