Transmission shaft protective cover and loader

Abstract

In order to solve the problem that an existing transmission shaft protective cover is of an integrated structure and is difficult to manufacture, the transmission shaft protective cover and the loader are constructed, the transmission shaft protective cover is formed by splicing two half covers arranged on the left side and the right side, and each half cover comprises a side plate and a horizontally-arranged flat plate; the two flat plates are arranged at the same height, vertical folded edges bent upwards are arranged at the adjacent positions, and the vertical folded edges on the two flat plates are attached to each other and fixedly connected through bolt locking. The side plates are arranged on the outer edges, away from the vertical folded edges, of the corresponding flat plates, and the tops of the side plates are fixedly connected with the flat plates. The space between the two side plates and located below the two flat plates is through front and back, and a plurality of installation bases are arranged on the lower edge of each side plate. The transmission shaft protective cover is formed by splicing the two half covers, the half covers are formed by connecting the flat plates and the side plates, and the transmission shaft protective cover is of a non-integrally-formed structure and is easy to install and manufacture.

Description

Technical Field

[0001] The utility model relates to a protective cover, more specifically, to a transmission shaft protective cover and a loader. Background Art

[0002] The loader usually has an articulated frame, with the power mounting seat arranged on the rear frame. The gearbox and the front axle are connected by the front drive shaft, which extends from the rear to the front, and is connected to the gearbox and the front drive axle at both ends. Since the front and rear frames will swing relative to each other when turning, a universal joint is provided at the junction of the front and rear frames so that the front drive shaft can swing with the swing of the frame. The front drive shaft passes through the hinge of the front and rear frames, where there is less obstruction to the front drive shaft. When the loader is operating, dust, gravel, slag and other particulates can easily fall directly onto the front drive shaft. When the loader is driving, debris will be entangled on the front drive shaft. In order to protect the front drive shaft, especially to reduce the maintenance labor during the maintenance process, a drive shaft protective cover needs to be installed at the hinge of the front and rear frames of the loader to protect the drive shaft at this location.

[0003] The existing transmission shaft protective cover is an integrated structure, the processing procedures are complicated, the cost is high, the on-site assembly is difficult, and the transmission shaft maintenance is time-consuming. Utility Model Content

[0004] The technical problem to be solved by the utility model is the above-mentioned disadvantages of the existing transmission shaft protective cover, and provides a transmission shaft protective cover and a loader.

[0005] The utility model provides a technical solution to achieve its purpose: a transmission shaft protective cover, which is composed of two half covers arranged left and right, each of the half covers includes a vertically arranged side panel and a horizontally arranged flat plate; the two flat plates are arranged at the same height and have upwardly bent vertical folded edges at adjacent positions, the vertical folded edges on the two flat plates are in contact with each other and are fixedly connected by bolts; each of the side panels is arranged at the outer edge of the corresponding flat plate opposite to the vertical folded edge and the top of the side panel is fixedly connected to the flat plate; the space between the two side panels and below the two flat plates is connected front to back, and a plurality of mounting seats are arranged at the lower edge of each side panel.

[0006] In the transmission shaft protective cover of the utility model, each of the side plates is provided with a plurality of vertical outer reinforcing ribs arranged at intervals in the front-rear direction on the outer side surface thereof.

[0007] In the transmission shaft protective cover of the utility model, the lower end of each vertical outer reinforcing rib has a bent portion which is bent horizontally and constitutes the mounting seat, and the bent portion is provided with a hole for the bolt to pass through.

[0008] In the transmission shaft protective cover of the utility model, the top of each side plate has a horizontal folded edge bent to fit with the flat plate, and the horizontal folded edge is fixedly connected to the flat plate by bolts or rivets.

[0009] In the transmission shaft protective cover of the utility model, the top of the side plate is vertically welded to the flat plate.

[0010] In the transmission shaft protective cover of the utility model, a plurality of vertical inner reinforcing ribs are arranged between the side plate and the flat plate at intervals in the front-to-back direction, and the vertical inner reinforcing ribs are located on the inner side of the side plate.

[0011] In the transmission shaft protective cover of the utility model, the side plate is a bent plate bent along a vertical bending line, and the part of the side plate located at the rear side of the vertical bending line is bent outward.

[0012] In the transmission shaft protective cover of the utility model, the parts of the two side plates located in front of the vertical bending line are parallel to each other.

[0013] In the transmission shaft protective cover of the utility model, the two half covers are mirror-symmetrical to each other.

[0014] The utility model provides a technical solution to achieve its purpose: a loader, comprising hinged front and rear frames, a transmission shaft connecting a front drive axle and a gearbox, the loader also comprising the aforementioned transmission shaft protective cover, a mounting seat of the transmission shaft protective cover is fixedly connected to the upper side of a lower hinged plate on the front frame for hinged connection with the rear frame, the transmission shaft is composed of a front transmission shaft and an intermediate transmission shaft, the front end of the intermediate transmission shaft is connected to the rear end of the front transmission shaft, the transmission shaft extends through the space between the two side plates of the transmission shaft protective cover, and the front end of the intermediate transmission shaft is located in the space between the two side plates of the transmission shaft protective cover.

[0015] The transmission shaft protection cover of the utility model is formed by splicing two half covers, and the half covers are formed by connecting a flat plate and a side plate. It is a non-integrated molding structure and is easy to install and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a transmission shaft protective cover of the utility model.

[0017] Figure 2 The utility model is a schematic diagram of the outer structure of the middle half cover of the transmission shaft protective cover.

[0018] Figure 3 The utility model is a schematic diagram of the inner structure of a half cover of a transmission shaft protective cover.

[0019] Figure 4 The utility model is a schematic diagram of installing a transmission shaft protective cover on a loader.

[0020] Parts names and serial numbers in the figure:

[0021] The half cover 1 , the flat plate 10 , the vertical folded edge 11 , the bolt hole 12 , the side plate 20 , the vertical outer reinforcing rib 30 , the bending portion 31 , the vertical inner reinforcing rib 40 , the bolt 50 , the transmission shaft 60 , the front transmission shaft 61 , and the intermediate transmission shaft 62 .

[0022] Transmission shaft protection cover 100 , rear frame 70 , front frame 80 , lower hinge plate 81 . DETAILED DESCRIPTION

[0023] The specific implementation scheme is described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the transmission shaft protective cover 100 in this embodiment is composed of two half covers 1 arranged left and right, each half cover 1 includes a vertically arranged side panel 20 and a horizontally arranged flat plate 10. The two flat plates 10 are arranged at the same height and have an upwardly bent vertical folding edge 11 at the adjacent position. The vertical folding edges 11 on the two flat plates 10 are attached to each other and are locked and fixedly connected by bolts 50. Each side panel 20 is arranged at the outer edge of the flat plate 10 opposite to the vertical folding edge 11, and the top of the side panel 20 is fixedly connected to the flat plate 10; the space between the two side panels 20 and below the two flat plates 10 is connected front to back, and a plurality of mounting seats are arranged at the lower edge of each side panel 20.

[0025] like Figure 2 As shown, each side plate 20 is provided with a plurality of vertical external reinforcing ribs 30 arranged at intervals in the front-to-back direction on its outer side surface, and the vertical external reinforcing ribs 30 are welded to the side plate 20. The lower end of each vertical external reinforcing rib 30 has a bent portion 31 bent horizontally and forming a mounting seat, and the bent portion 31 is provided with a hole for the bolt to pass through.

[0026] When the transmission shaft protective cover 100 is installed, the installation bolts pass through the holes on the bent portion 31 and are fixedly connected to a bearing member such as a vehicle frame, thereby fixing the transmission shaft protective cover 100 on the bearing member.

[0027] like Figure 3 As shown, the top of the side plate 20 is vertically welded to the flat plate 10. A plurality of vertical inner reinforcing ribs 40 are arranged between the side plate 20 and the flat plate 10 at intervals in the front-to-back direction, and the vertical inner reinforcing ribs 40 are located on the inner side of the side plate 20. The vertical inner reinforcing ribs 40 are welded to the flat plate 10 and the side plate 20.

[0028] like Figure 1As shown, the side plate 20 is a bending plate bent along the vertical bending line, and the part of the side plate 20 located behind the vertical bending line is bent outward, that is, the part of the left side plate 20 located behind the vertical bending line is bent to the left, and the part of the right side plate 20 located behind the vertical bending line is bent to the right. The parts of the two side plates 20 located in front of the vertical bending line are parallel to each other. This structure makes the rear part of the internal space of the transmission shaft protective cover 100 trumpet-shaped, and the size of the rear end space in the left-right direction is larger, providing space for the transmission shaft 60 to swing left and right.

[0029] like Figure 1 As shown, the two half covers 1 are mirror-symmetrical to each other.

[0030] like Figure 1 As shown, the left and right half covers 1 are butted together, the vertical folded edges 11 on the flat plate 10 fit together, the bolts 50 pass through the coaxially aligned bolt holes 12 on the two vertical folded edges 11 and cooperate with the nuts to lock and fix the two vertical folded edges 11, thereby assembling the two half covers 1 into a transmission shaft protective cover 100.

[0031] In some embodiments, the side panels 20 and the flat plate 10 can also be fixedly connected by bolts or rivets. Specifically, the top of each side panel 20 has a horizontal folded edge that is bent to fit the flat plate 10, and the horizontal folded edge and the flat plate 10 are provided with coaxially aligned holes, and bolts or rivets are arranged in the holes to fix the horizontal folded edge to the flat plate by the bolts or rivets.

[0032] This embodiment also provides a loader, such as Figure 4 As shown, the loader includes hinged front and rear frames, a transmission shaft connecting the front drive axle and the gearbox, and the loader also includes the aforementioned transmission shaft protective cover 100. The mounting seat of the transmission shaft protective cover 100 is fixedly connected to the lower hinge plate 81 on the front frame 80 for being hinged to the rear frame. The transmission shaft is composed of a front transmission shaft 61 and an intermediate transmission shaft 62. The front end of the front transmission shaft 61 is connected to the front drive axle (not shown in the figure), and the rear end is connected to the front end of the intermediate transmission shaft 62. The rear end of the intermediate transmission shaft 62 is connected to the gearbox (not shown in the figure). The transmission shaft extends from the space between the two side plates 200 of the transmission shaft protective cover 100 to the front and back, wherein the front end of the intermediate transmission shaft 62 is located in the space between the two side plates of the transmission shaft protective cover 100.

[0033] The transmission shaft protective cover 100 in this embodiment is formed by splicing two half covers 1, and the half cover 1 is formed by connecting a flat plate 10 and a side plate 20. It is a non-integrated structure and is easy to manufacture and install.

Claims

1. A transmission shaft protective cover, characterized in that: The transmission shaft protective cover is composed of two half covers arranged on the left and right, each of which includes a vertically arranged side panel and a horizontally arranged flat plate; the two flat plates are arranged at the same height and have upwardly bent vertical folded edges at adjacent positions, and the vertical folded edges on the two flat plates are in contact with each other and fixedly connected by bolts; each side panel is arranged at the outer edge of the corresponding flat plate opposite to the vertical folded edge and the top of the side panel is fixedly connected to the flat plate; the space between the two side panels and below the two flat plates is connected front to back, and a plurality of mounting seats are arranged at the lower edge of each side panel.

2. The transmission shaft protective cover according to claim 1, characterized in that: Each of the side plates is provided with a plurality of vertical outer reinforcing ribs arranged at intervals in the front-to-back direction on its outer side surface.

3. The transmission shaft protective cover according to claim 2, characterized in that: The lower end of each vertical outer reinforcing rib has a bent portion which is bent horizontally and constitutes the mounting seat, and the bent portion is provided with a hole for the bolt to pass through.

4. The transmission shaft protective cover according to claim 1, characterized in that: The top of each side plate has a horizontal folded edge bent to fit the flat plate, and the horizontal folded edge is fixedly connected to the flat plate by bolts or rivets.

5. The transmission shaft protective cover according to claim 1, characterized in that: The top of the side plate is welded to the flat plate vertically.

6. The transmission shaft protective cover according to claim 5, characterized in that: A plurality of vertical inner reinforcing ribs are arranged between the side plate and the flat plate at intervals in the front-to-back direction, and the vertical inner reinforcing ribs are located on the inner side of the side plate.

7. The transmission shaft protective cover according to any one of claims 1 to 6, characterized in that: The side plate is a bent plate bent along a vertical bending line, and a portion of the side plate located behind the vertical bending line is bent outward.

8. The transmission shaft protective cover according to claim 7, characterized in that: The parts of the two side plates located in front of the vertical bending line are parallel to each other.

9. The transmission shaft protective cover according to claim 1, characterized in that: The two half covers are mirror-symmetrical to each other.

10. A loader, comprising an articulated front and rear frame, a transmission shaft connecting a front drive axle and a gearbox, characterized in that: The loader also includes a drive shaft protective cover as described in any one of claims 1 to 9, wherein the mounting base of the drive shaft protective cover is fixedly connected to the upper side of the lower hinged plate on the front frame for hinged connection with the rear frame, the drive shaft is composed of a front drive shaft and an intermediate drive shaft, the front end of the intermediate drive shaft is connected to the rear end of the front drive shaft, the drive shaft extends front and back through the space between the two side plates of the drive shaft protective cover, and the front end of the intermediate drive shaft is located in the space between the two side plates of the drive shaft protective cover.

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