Hydraulic cylinder installation layout

Abstract

A cylinder mounting arrangement comprising: a mining vehicle having a frame; and at least one hydraulic cylinder (1) mounted to the frame of the vehicle, the cylinder (1) having a cylinder pin (10) for mounting. In the present invention, the frame has an opening through which the cylinder (1) can be inserted into the frame and can also be removed through the opening, and a mounting element (8) has been assembled to one end of the cylinder (1), the mounting element (8) comprising a front plate (8') assembled against the outside of the frame and at least partially covering the opening (5), and two ears (8") for attaching to the cylinder pin (10), and the front plate (8') is fixed to the frame from the outside of the frame by mounting bolts (6) or screws. The present invention also relates to a mining vehicle.

Description

Technical Field

[0001] The present invention relates to a hydraulic cylinder mounting arrangement comprising: a mining vehicle having a frame; and at least one hydraulic cylinder mounted to the vehicle frame, the hydraulic cylinder having a cylinder pin for mounting. The present invention also relates to a mining vehicle.

[0002] The present invention relates to mounting a hydraulic cylinder, such as a hydraulic steering cylinder, to an underground mining vehicle, such as an articulated underground loader or truck with frame steering. Background Art

[0003] Currently, the steering cylinder's fastening pin is typically mounted to the vehicle's frame corner box or hydraulic oil tank using two mounting plates. Both mounting plates have semicircular recesses that abut against each other, forming a circular hole for the cylinder's fastening pin. Of course, a similar arrangement is also required to secure the other end of the cylinder's fastening pin.

[0004] In known designs, a first mounting plate is welded to the vehicle's frame (typically to a corner box or hydraulic tank), and a second mounting plate is fastened to the first mounting plate with mounting bolts. The two mounting plates are machined to form a pair of plates bolted together. Thus, they form a unique pair. If the second mounting plate is damaged or disappears, both mounting plates must be replaced. A problem with current designs is that it is impossible to remove the used first mounting plate without machining, as the first mounting plate is already welded to the vehicle frame. Machining is time-consuming and labor-intensive.

[0005] Another problem is that reinstalling the cylinder pin is difficult in a confined space because the cylinder is heavy and has many parts that need to be removed and reinstalled. Summary of the Invention

[0006] The object of the present invention is to provide a new arrangement for mounting a hydraulic cylinder, which solves the problems existing in existing arrangements. The arrangement is characterized in that a frame has an opening through which the cylinder can be inserted into the frame and removed, and a mounting element is assembled to one end of the cylinder, the mounting element comprising a front plate assembled against the outside of the frame, at least partially covering the opening, and two ears for attaching to the cylinder pins, and the front plate is fixed to the frame from the outside of the frame by mounting bolts or screws.

[0007] In one embodiment of the present invention, the vehicle is an articulated mining vehicle having a front frame and a rear frame coupled to each other by an articulation pin, and the cylinder is a steering cylinder having one end mounted to the front frame and the other end mounted to the rear frame with an opening in the rear frame.

[0008] In one embodiment of the invention, a support guide is mounted in the rear frame, along which the cylinder can be pushed in and pulled out.

[0009] In one embodiment of the present invention, the mounting bolts or screws are assembled in two rows, one row above the opening and one row below the opening, with each row having six mounting bolts or screws.

[0010] Another object of the present invention is to provide a mining vehicle in which the problems existing in existing vehicles have been solved.

[0011] One advantage of the present invention is that when a cylinder or its mounting components need to be replaced, the cylinder pins, washers, and seals can be pre-assembled on the mounting table. This saves considerable time, as installation is simple and quick. It's even possible to pin the cylinder before removing the old one. There's no need to turn the machine when assembling or disassembling the cylinder. Furthermore, the cylinder can be lifted by a crane during the entire process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this specification, illustrate embodiments of the present invention and together with the description help to explain the principles of the present invention. In the drawings:

[0013] Figure 1 is a view of a cylinder mounting arrangement according to the present invention in a first position.

[0014] Figure 2 is a view of the cylinder mounting arrangement according to the present invention in a second position.

[0015] Figure 3 2 is a view showing the cylinder mounting arrangement according to the present invention in a third position.

[0016] Figure 4 is a perspective view of a cylinder with a portion of a vehicle frame.

[0017] Figure 5 It is a perspective view of the cylinder without a part of the vehicle frame. DETAILED DESCRIPTION

[0018] exist Figure 1-Figure 3 In FIG. 1 , a cylinder mounting arrangement according to the present invention is shown in a perspective view. For example, such a hydraulic cylinder 1 ( Figure 3 ) can be used as a steering cylinder in mining vehicles, for example underground vehicles such as articulated underground loaders or trucks. Figure 1 and Figure 2 In the figure, only the piston 1' of the cylinder 1 can be seen. The vehicle has a front frame 2 and a rear frame 3 which are coupled to each other via a hinge pin 4. The front frame 2 and the rear frame 3 are rotated relative to each other via the steering cylinder 1.

[0019] The present invention focuses on the mounting of the cylinder 1 to the rear frame 3. The mounting of the piston 1' of the cylinder 1 to the front frame 2 may be conventional and will not be described in detail here.

[0020] In order to mount the cylinder 1 to the vehicle, the rear frame 3 (preferably a corner box of the rear frame 3) must have an opening 5 through which the cylinder 1 is inserted into its place and through which it can also be removed. Figure 1 In the figure, a position is shown in which cylinder 1 is already mounted and can be operated for steering purposes. The rear frame 3 is secured using mounting bolts 6 or screws, which have been inserted through the front plate 8' of the mounting element 8 and screwed to the rear frame 3. In this case, the mounting bolts 6 are located above and below the opening 5. There are a total of 12 mounting bolts or screws, but this number can, of course, vary. The rear frame naturally has internally threaded holes to receive the mounting bolts 6.

[0021] exist Figure 2 In FIG, a position has been shown in which the mounting bolts 6 have been loosened and the piston 1 ′ has been released from the front frame 2 by removing the fastening pin 7 .

[0022] In addition, Figure 3 , the cylinder 1 is shown in a position in which the mounting bolts have been removed and the cylinder 1 has been largely pulled out of the opening 5 of the rear frame 3. To facilitate this pulling, support guides 9 can be installed in the rear frame 3, along which the cylinder 1 can be pulled. This pulling can be done manually. Of course, the same support guides 9 are used when a new cylinder 1 is inserted into the frame.

[0023] After the cylinder end has been pulled out from the opening 5, the cylinder end can be supported by, for example, a crane (not shown). Just before the entire cylinder 1 is taken out, the other end can also be supported by a crane and the entire cylinder 1 can be lifted away.

[0024] Figure 4 and Figure 5 The cylinder installation of the present invention is shown in more detail. Figure 4 In the figure, reference numeral 3 denotes a rear frame. Of course, Figure 4 Only a portion of the rear frame is shown. Reference numeral 8 denotes a mounting element comprising a front plate 8' and two ears 8" behind the front plate 8', which ears are mounted around a cylinder pin 10. One ear 8" surrounds one end of the cylinder pin 10 and the other ear 8" surrounds the other end of the cylinder pin (10).

[0025] Figure 5 Shown with Figure 4The same situation, except that the frame portion 3 has been removed. This illustrates how the mounting bolts 6 are assembled in two rows, one above the opening and one below the opening, with six mounting bolts in each row.

[0026] It is obvious to a person skilled in the art that as technology advances, the basic idea of ​​the invention can be implemented in various ways. Therefore, the invention and its embodiments are not limited to the examples described above, but rather they can be varied within the scope of the claims.

Claims

1. A cylinder mounting device for a mining vehicle having a frame, comprising: At least one hydraulic cylinder (1) is mounted to the frame of the mining vehicle, the hydraulic cylinder (1) having a cylinder pin (10) for mounting, characterized in that the frame has an opening (5) through which the hydraulic cylinder (1) can be inserted into the frame and can also be removed through the opening (5), and a mounting element (8) has been assembled to one end of the hydraulic cylinder (1), the mounting element (8) comprising a front plate (8') and two ears (8"), the front plate (8') being assembled against the outside of the frame, at least partially covering the opening (5), the two ears (8") being used to attach to the cylinder pin (10), and the front plate (8') being fixed to the frame from the outside of the frame by mounting bolts (6) or screws.

2. The cylinder mounting device according to claim 1, characterized in that: The mining vehicle is an articulated mining vehicle having a front frame (2) and a rear frame (3) coupled to each other via an articulation pin (4), and the hydraulic cylinder (1) is a steering cylinder having one end mounted to the front frame (2) and the other end mounted to the rear frame (3), and the opening (5) is located in the rear frame.

3. The cylinder mounting device according to claim 2, characterized in that: A support guide (9) has been installed in the rear frame (3), along which the hydraulic cylinder (1) can be pushed in and pulled out.

4. The cylinder mounting device according to any one of claims 1 to 3, characterized in that: The mounting bolts (6) or screws are assembled in two rows, one row above the opening (5) and one row below the opening (5), with each row having six mounting bolts (6) or screws.

5. A mining vehicle having a frame and at least one hydraulic cylinder (1) mounted to the frame of the mining vehicle, the hydraulic cylinder (1) having a cylinder pin (10) for mounting, characterized in that The frame has an opening (5) through which the hydraulic cylinder (1) can be inserted into the frame and can also be removed through the opening (5), and a mounting element (8) has been assembled to one end of the hydraulic cylinder (1), the mounting element (8) comprising a front plate (8') and two ears (8"), the front plate (8') being assembled against the outside of the frame to at least partially cover the opening (5), the two ears (8") being used to attach to the cylinder pin (10), and the front plate (8') being fixed to the frame from the outside of the frame by mounting bolts (6) or screws.

6. The mining vehicle according to claim 5, characterized in that The mining vehicle is an articulated mining vehicle having a front frame (2) and a rear frame (3) coupled to each other by a hinge pin (4), and the hydraulic cylinder (1) is a steering cylinder having one end mounted to the front frame (2) and the other end mounted to the rear frame (3), and the opening (5) is located in the rear frame (3).

7. The mining vehicle according to claim 6, characterized in that A support guide (9) has been installed in the rear frame (3), along which the hydraulic cylinder (1) can be pushed in and pulled out.

8. The mining vehicle according to any one of claims 5 to 7, characterized in that The mounting bolts (6) or screws are assembled in two rows, one row above the opening (5) and one row below the opening (5), with each row having six mounting bolts or screws.

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