Gearbox assembly of electric carrier

Abstract

The utility model relates to the technical field of electric carriers, and discloses an electric carrier gearbox assembly which comprises a gearbox seat, a transmission assembly is fixedly connected to the inner wall of the gearbox seat, an output and input assembly is fixedly connected to the inner wall of the gearbox seat, and the transmission assembly is meshed with the output and input assembly. A box cover is attached to the left side of the gearbox base, and first U-shaped plates are fixedly connected to the front side and the rear side of the box cover and the front side and the rear side of the gearbox base correspondingly. Through cooperation of a first U-shaped plate, a clamping groove, a U-shaped support, a first hollow block, a threaded cylinder, a bolt, a fourth bearing and a pressing block, a maintainer only needs to rotate one bolt to complete disassembly and assembly of a gearbox base and a gearbox cover, meanwhile, through cooperation of a sealing plate, an arc-shaped plate, a C-shaped elastic piece and a vertical plate, the sealing effect is greatly improved, and the maintenance cost is reduced. The pressing block can not loosen from the gearbox seat and the box cover, so that the gearbox seat and the box cover are fixed more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of electric transport vehicles, in particular to a gearbox assembly of an electric transport vehicle. Background Art

[0002] An electric transport truck is a logistics transport vehicle used to transport goods; when the transport truck is in use, the fork it carries is inserted into the hole of the pallet, and then the pallet is lifted and moved by the fork.

[0003] At present, the gearbox assembly of an electric transport truck is mainly composed of a gearbox seat, a box cover, a transmission component and an output-input component. For example, a transport truck drive unit assembly disclosed in Chinese Patent Publication No. CN216200328U, however, is troublesome to disassemble and assemble the gearbox seat and the box cover because the gearbox seat and the box cover are fixed by multiple bolts. At the same time, the gearbox seat and the box cover are often loosened due to loose bolts, which causes abnormal noises in the gearbox assembly during use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. For example, at present, the gearbox assembly of an electric transport vehicle is mainly composed of a gearbox seat, a box cover, a transmission component and an output-input component. However, since the gearbox seat and the box cover are fixed by multiple bolts, it is more troublesome to disassemble and assemble the gearbox seat and the box cover. At the same time, the gearbox seat and the box cover are often loose due to loose bolts, and the gearbox assembly produces abnormal noise during use. Therefore, an electric transport vehicle gearbox assembly is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gearbox assembly of an electric transport truck comprises a gearbox seat, the inner wall of the gearbox seat is fixedly connected with a transmission component, the inner wall of the gearbox seat is fixedly connected with an output-input component, the transmission component and the output-input component are meshed with each other, a box cover is fitted on the left side of the gearbox seat, the front and rear sides of the box cover and the front and rear sides of the gearbox seat are fixedly connected with a first U-shaped plate, a card slot is provided at the bottom of the first U-shaped plate, the front and rear sides of the gearbox seat, the front and rear sides of the box cover, the inner wall of the card slot and the inner wall of the first U-shaped plate are all fitted with a U-shaped bracket, the inner wall of the U-shaped bracket is fixedly connected with a first hollow block, the inner wall of the first hollow block is fixedly connected with a threaded cylinder, the inner wall of the threaded cylinder is threadedly connected with a bolt, the surface of the bolt is fixedly connected with a fourth bearing, the surface of the fourth bearing is fixedly connected with a pressing block, the upper surface of the box cover and the upper surface of the gearbox seat are both in contact with the bottom of the pressing block.

[0007] Preferably, the transmission assembly includes a first bearing, a surface of the first bearing is fixedly connected to the inner wall of the gearbox seat, a rotating shaft is fixedly connected to the inner wall of the first bearing, a transmission gear is fixedly connected to the surface of the rotating shaft, and the transmission gear is meshed with the output-input assembly.

[0008] Preferably, the output-input assembly includes a second bearing, the surface of the second bearing is fixedly connected to the inner wall of the gearbox seat, the inner wall of the second bearing is fixedly connected with a hollow output shaft, the inner wall of the hollow output shaft is fixedly connected with a third bearing, the inner wall of the third bearing is fixedly connected with an input shaft, the surface of the hollow output shaft is fixedly connected with a driven gear, the surface of the input shaft is fixedly connected with a driving gear, and the driven gear and the driving gear are both meshed with the transmission gear.

[0009] Preferably, the U-shaped bracket includes a second U-shaped plate, the inner wall of the second U-shaped plate is fixedly connected to the upper surface of the first hollow block, the front and rear sides of the inner wall of the second U-shaped plate are fixedly connected with cross columns, the surface of the cross column is in contact with the inner wall of the slot, the surface of the cross column is fixedly connected with a circular plate, and the front and rear sides of the gearbox seat, the front and rear sides of the box cover and the inner wall of the first U-shaped plate are all in contact with the surface of the circular plate.

[0010] Preferably, a sealing plate is fixedly connected to the surface of the bolt, and the bottom of the sealing plate is in contact with the upper surface of the pressing block.

[0011] Preferably, the surface of the bolt, the upper surface of the sealing plate and the bottom of the threaded tube are all fitted with an arc plate, the surface of the arc plate is fixedly connected with a C-shaped spring piece, and the left side of the C-shaped spring piece is fixedly connected with a vertical plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model provides a first U-shaped plate, a slot, a U-shaped bracket, a first hollow block, a threaded barrel, a bolt, a fourth bearing and a pressing block, wherein when the cross column on the U-shaped bracket is inserted into the slot and the pressing block presses the gearbox seat and the case cover, the case cover can be fixed on the gearbox seat through the cooperation of the first U-shaped plate, the slot, the U-shaped bracket and the pressing block. When the circular plate is moved out of the first U-shaped plate, the case cover can be directly separated from the gearbox seat. At the same time, the U-shaped bracket can be moved up and down by rotating the bolt. Furthermore, through the cooperation of the first U-shaped plate, the slot, the U-shaped bracket, the first hollow block, the threaded barrel, the bolt, the fourth bearing and the pressing block, the maintenance personnel only need to rotate one bolt to complete the disassembly and assembly between the gearbox seat and the case cover, thereby making the gearbox assembly more convenient during maintenance.

[0014] (2) The utility model installs a sealing plate on the bolt to prevent dust in the air from entering the fourth bearing, thereby preventing the fourth bearing from getting stuck or wearing faster due to dust entering the fourth bearing. At the same time, when the arc plate is sleeved on the bolt, the arc plate is clamped on the bolt through the C-shaped spring sheet, and the bolt cannot rotate in the threaded barrel through the arc plate, thereby preventing the pressing block from loosening with the gearbox seat and the box cover, thereby making the gearbox seat and the box cover more firmly fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a left view of the structure of the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 It is a front view of the transmission assembly in the utility model;

[0020] Figure 6 It is a schematic diagram of the output and input components in the utility model;

[0021] Figure 7 It is a front view of the box cover in the utility model;

[0022] Figure 8 It is a left view of the U-shaped bracket in the utility model;

[0023] Fig. 9 It is a top view of the C-shaped spring piece in the utility model.

[0024] In the figure: 1, gearbox seat; 2, transmission assembly; 201, first bearing; 202, rotating shaft; 203, transmission gear; 3, input and output assembly; 301, second bearing; 302, hollow output shaft; 303, third bearing; 304, input shaft; 305, driven gear; 306, driving gear; 4, box cover; 5, first U-shaped plate; 6, slot; 7, U-shaped bracket; 701, second U-shaped plate; 702, horizontal column; 703, circular plate; 8, first hollow block; 9, threaded cylinder; 10, bolt; 11, fourth bearing; 12, pressing block; 13, sealing plate; 14, arc plate; 15, C-shaped spring; 16, vertical plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Embodiment 1:

[0028] Reference Figure 1-8 A gearbox assembly of an electric transport vehicle comprises a gearbox seat 1, a transmission component 2 is fixedly connected to the inner wall of the gearbox seat 1, an output-input component 3 is fixedly connected to the inner wall of the gearbox seat 1, the transmission component 2 and the output-input component 3 are meshed with each other, a box cover 4 is fitted on the left side of the gearbox seat 1, and a first U-shaped plate 5 is fixedly connected to the front and rear sides of the box cover 4 and the front and rear sides of the gearbox seat 1, and a card slot 6 is opened at the bottom of the first U-shaped plate 5, and a U-shaped bracket 7 is fitted on the front and rear sides of the gearbox seat 1, the front and rear sides of the box cover 4, the inner wall of the card slot 6 and the inner wall of the first U-shaped plate 5, and the inner wall of the U-shaped bracket 7 is fixed A first hollow block 8 is connected, a threaded tube 9 is fixedly connected to the inner wall of the first hollow block 8, a bolt 10 is threadedly connected to the inner wall of the threaded tube 9, a fourth bearing 11 is fixedly connected to the surface of the bolt 10, a pressing block 12 is fixedly connected to the surface of the fourth bearing 11, the upper surface of the case cover 4 and the upper surface of the gearbox seat 1 are both in contact with the bottom of the pressing block 12, when the pressing block 12 is in contact with the gearbox seat 1 and the case cover 4, the fourth bearing 11 allows the user to rotate the bolt 10 without friction between the pressing block 12 and the gearbox seat 1 and the case cover 4, thereby preventing the pressing block 12, the gearbox seat 1 and the case cover 4 from wearing.

[0029] The transmission assembly 2 includes a first bearing 201, the surface of the first bearing 201 is fixedly connected to the inner wall of the gearbox seat 1, the inner wall of the first bearing 201 is fixedly connected to a rotating shaft 202, the surface of the rotating shaft 202 is fixedly connected to a transmission gear 203, and the transmission gear 203 is meshed with the output-input assembly 3.

[0030] The output-input assembly 3 includes a second bearing 301, the surface of the second bearing 301 is fixedly connected to the inner wall of the gearbox seat 1, a hollow output shaft 302 is fixedly connected to the inner wall of the second bearing 301, a third bearing 303 is fixedly connected to the inner wall of the hollow output shaft 302, an input shaft 304 is fixedly connected to the inner wall of the third bearing 303, a driven gear 305 is fixedly connected to the surface of the hollow output shaft 302, a driving gear 306 is fixedly connected to the surface of the input shaft 304, the driven gear 305 and the driving gear 306 are both meshed with the transmission gear 203, and the input shaft 304 can drive the hollow output shaft 302 to rotate through the cooperation of the driven gear 305, the driving gear 306 and the transmission gear 203.

[0031] The U-shaped bracket 7 includes a second U-shaped plate 701, the inner wall of the second U-shaped plate 701 is fixedly connected to the upper surface of the first hollow block 8, the front and rear sides of the inner wall of the second U-shaped plate 701 are fixedly connected with a cross column 702, the surface of the cross column 702 contacts the inner wall of the slot 6, the surface of the cross column 702 is fixedly connected with a circular plate 703, the front and rear sides of the gearbox seat 1, the front and rear sides of the box cover 4 and the inner wall of the first U-shaped plate 5 are all in contact with the surface of the circular plate 703, when the cross column 702 is inserted into the slot 6, through the cooperation of the cross column 702, the circular plate 703, the second U-shaped plate 701 and the slot 6, the gearbox seat 1 and the box cover 4 are in close contact, and the box cover 4 cannot move horizontally.

[0032] Embodiment 2:

[0033] Reference Figure 1-9 A sealing plate 13 is fixedly connected to the surface of the bolt 10, and the bottom of the sealing plate 13 contacts the upper surface of the pressing block 12. By installing the sealing plate 13 on the bolt 10, dust in the air cannot enter the fourth bearing 11, thereby preventing the fourth bearing 11 from getting stuck or wearing faster due to dust entering the fourth bearing 11.

[0034] The surface of the bolt 10, the upper surface of the sealing plate 13 and the bottom of the threaded tube 9 are all fitted with an arc plate 14, and a C-shaped spring piece 15 is fixedly connected to the surface of the arc plate 14, and a vertical plate 16 is fixedly connected to the left side of the C-shaped spring piece 15. When the arc plate 14 is sleeved on the bolt 10, the arc plate 14 is clamped on the bolt 10 through the C-shaped spring piece 15, and the bolt 10 cannot rotate in the threaded tube 9 through the arc plate 14, so that the pressing block 12 and the gearbox seat 1 and the box cover 4 will not loosen, so that the gearbox seat 1 and the box cover 4 are fixed more firmly.

[0035] The box cover 4 is fixed to the gearbox seat 1 by the cooperation of the first U-shaped plate 5, the slot 6, the second U-shaped plate 701 and the second U-shaped plate 702.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A gearbox assembly for an electric transport vehicle, comprising a gearbox seat (1), It is characterized in that The inner wall of the gearbox seat (1) is fixedly connected to a transmission assembly (2), the inner wall of the gearbox seat (1) is fixedly connected to an output-input assembly (3), the transmission assembly (2) and the output-input assembly (3) are meshed with each other, a box cover (4) is provided on the left side of the gearbox seat (1), the front and rear sides of the box cover (4) and the front and rear sides of the gearbox seat (1) are fixedly connected to a first U-shaped plate (5), a card slot (6) is provided at the bottom of the first U-shaped plate (5), the front and rear sides of the gearbox seat (1), the front and rear sides of the box cover (4), and the card slot (6) The inner wall of the first U-shaped plate (5) and the inner wall of the first U-shaped plate (5) are both fitted with a U-shaped bracket (7), the inner wall of the U-shaped bracket (7) is fixedly connected to a first hollow block (8), the inner wall of the first hollow block (8) is fixedly connected to a threaded barrel (9), the inner wall of the threaded barrel (9) is threadedly connected to a bolt (10), the surface of the bolt (10) is fixedly connected to a fourth bearing (11), the surface of the fourth bearing (11) is fixedly connected to a pressing block (12), and the upper surface of the box cover (4) and the upper surface of the gearbox seat (1) are both in contact with the bottom of the pressing block (12).

2. The electric transport vehicle gearbox assembly according to claim 1, It is characterized in that The transmission assembly (2) comprises a first bearing (201), the surface of the first bearing (201) being fixedly connected to the inner wall of the gearbox seat (1), the inner wall of the first bearing (201) being fixedly connected to a rotating shaft (202), the surface of the rotating shaft (202) being fixedly connected to a transmission gear (203), and the transmission gear (203) being meshed with the input and output assembly (3).

3. The electric transport vehicle gearbox assembly according to claim 2, It is characterized in that The output-input assembly (3) comprises a second bearing (301), the surface of the second bearing (301) is fixedly connected to the inner wall of the gearbox seat (1), the inner wall of the second bearing (301) is fixedly connected to a hollow output shaft (302), the inner wall of the hollow output shaft (302) is fixedly connected to a third bearing (303), the inner wall of the third bearing (303) is fixedly connected to an input shaft (304), the surface of the hollow output shaft (302) is fixedly connected to a driven gear (305), the surface of the input shaft (304) is fixedly connected to a driving gear (306), and the driven gear (305) and the driving gear (306) are both meshed with the transmission gear (203).

4. The electric transport vehicle gearbox assembly according to claim 1, It is characterized in that The U-shaped bracket (7) comprises a second U-shaped plate (701), the inner wall of the second U-shaped plate (701) is fixedly connected to the upper surface of the first hollow block (8), the front and rear sides of the inner wall of the second U-shaped plate (701) are fixedly connected to a transverse column (702), the surface of the transverse column (702) is in contact with the inner wall of the slot (6), the surface of the transverse column (702) is fixedly connected to a circular plate (703), and the front and rear sides of the gearbox seat (1), the front and rear sides of the box cover (4) and the inner wall of the first U-shaped plate (5) are all in contact with the surface of the circular plate (703).

5. The electric transport vehicle gearbox assembly according to claim 1, It is characterized in that A sealing plate (13) is fixedly connected to the surface of the bolt (10), and the bottom of the sealing plate (13) is in contact with the upper surface of the pressing block (12).

6. The electric transport vehicle gearbox assembly according to claim 5, It is characterized in that The surface of the bolt (10), the upper surface of the sealing plate (13) and the bottom of the threaded tube (9) are all fitted with an arc-shaped plate (14), the surface of the arc-shaped plate (14) is fixedly connected with a C-shaped spring piece (15), and the left side of the C-shaped spring piece (15) is fixedly connected with a vertical plate (16).

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