Drilling device for dumper lifting oil cylinder

Abstract

The utility model relates to the field of hydraulic oil cylinder machining equipment, in particular to a drilling device for a dumper lifting oil cylinder. The drilling device comprises a machine frame, a drilling device and a drilling device, wherein the machine frame comprises a workbench, a mounting frame mounted on the workbench and a sliding frame mounted on the mounting frame; the number of the drilling structures is two, and each drilling structure comprises a sliding seat in sliding connection with the sliding frame, a lifting piece connected with the sliding seat and a drill bit connected with the lifting piece; the clamping structure comprises a base installed on the workbench in a sliding mode and a pressing plate arranged opposite to the base. The pressing plate is connected with the lifting piece and is in floating connection fit with the lifting piece. According to the dumper lifting oil cylinder drilling device, the head end and the tail end of a cylinder barrel can be drilled at the same time, high drilling efficiency is achieved, the pressing plate and the lifting piece are in floating connection, the pressing plate can move downwards along with the drill bit to fix the cylinder barrel to the base in an abutting mode, and therefore the cylinder barrel is clamped and fixed.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder processing equipment, specifically to a drilling device for a dump truck lifting cylinder. Background Technology

[0002] The lifting cylinder of a dump truck is an important component, primarily responsible for the unloading action. A typical dump truck lifting cylinder includes a cylinder barrel and cylinder head, piston and piston rod, sealing devices, cushioning devices, and venting devices. Drilling is required during the cylinder barrel's production process.

[0003] A cylinder typically has two holes: an inlet and an outlet. The inlet allows hydraulic oil to be supplied into the cylinder, thus driving the piston rod. The outlet discharges the hydraulic oil from the cylinder, returning the piston rod to its original position. However, existing drilling devices use only one set of drill bits. When machining the cylinder, drilling is performed sequentially at both ends of the cylinder, resulting in low drilling efficiency.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem of low drilling efficiency due to only one set of drill bits in existing technologies, this utility model provides a drilling device for a dump truck lifting cylinder. The drilling device includes: a frame, comprising a worktable, a mounting frame mounted on the worktable, and a sliding frame mounted on the mounting frame; two drilling structures arranged along the length of the sliding frame, each set including a sliding seat slidably connected to the sliding frame, a lifting component connected to the sliding seat, and a drill bit connected to the lifting component; and a clamping structure including a slidably mounted base on the worktable and a pressure plate arranged opposite to the base; the pressure plate is connected to the lifting component and forms a floating connection with it.

[0006] This utility model discloses a drilling device for a lifting cylinder of a dump truck, comprising a frame, a drilling structure, and a clamping structure. The frame is used to mount the drilling structure and the clamping structure. The drilling structure is used to drill holes in the cylinder barrel, and the clamping structure is used to clamp and fix the cylinder barrel. Two sets of drilling structures are arranged along the length of the sliding frame, enabling simultaneous drilling of both ends of the cylinder barrel, resulting in high drilling efficiency. Each set of drilling structures includes a sliding base, a lifting component, and a drill bit. The sliding frame can move the drill bit to accommodate cylinder barrels of different lengths. The lifting component moves the drill bit up and down, thereby drilling holes in the cylinder barrel. The clamping structure includes a base and a pressure plate. The pressure plate is connected to the lifting component and forms a floating connection with it, allowing it to move downwards with the drill bit. Before drilling, it presses and fixes the cylinder barrel against the base, thus clamping and fixing the cylinder barrel. The pressure plate moves with the sliding frame, and the base adjusts according to the position of the pressure plate, achieving a good clamping effect and preventing cylinder barrel swaying during drilling. With the above-mentioned configuration, the present invention provides a drilling device for a lifting cylinder of a dump truck that can simultaneously drill holes at both ends of the cylinder, resulting in high drilling efficiency. Furthermore, the pressure plate and the lifting component form a floating connection, which allows the cylinder to be pressed and fixed onto the base as the drill bit moves downward, thereby clamping and fixing the cylinder.

[0007] Furthermore, a sliding groove matching the sliding seat is provided on the sliding frame, and a sliding column is arranged in the sliding groove; the sliding seat is slidably sleeved on the circumferential outer side of the sliding column.

[0008] Furthermore, the lifting component is a lifting cylinder, and the lifting component is fixed on the sliding seat.

[0009] Furthermore, a floating structure is provided between the pressure plate and the lifting component. The floating structure includes a mounting plate fixedly connected to the lifting component, a vertical rod fixedly connected to the mounting plate, and a floating rod telescopically connected to the vertical rod. The end of the floating rod away from the vertical rod is connected to the pressure plate, and a compression spring is sleeved on the outer circumferential side of the floating rod.

[0010] Furthermore, multiple uprights are arranged circumferentially along the drill bit.

[0011] Furthermore, a reference block suitable for abutting one end of the cylinder is provided on the worktable.

[0012] Furthermore, a slide groove is provided on the workbench, and a limiting bolt for fixing the base to the workbench is arranged in the slide groove.

[0013] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0014] Two sets of drilling structures are arranged along the length of the sliding frame, which can simultaneously drill the beginning and end of the cylinder, resulting in high drilling efficiency. The clamping structure includes a base and a pressure plate. The pressure plate is connected to the lifting component and forms a floating connection with the lifting component. It can move downward with the drill bit and press and fix the cylinder on the base before drilling, thereby clamping and fixing the cylinder. Attached Figure Description

[0015] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of an embodiment of a drilling device for a lifting cylinder of a dump truck according to the present invention.

[0017] List of reference numerals in the attached drawings: 1. Frame; 11. Workbench; 12. Mounting bracket; 13. Sliding bracket; 14. Limit bolt; 15. Reference block; 16. Sliding column; 2. Drilling structure; 21. Sliding seat; 22. Lifting component; 23. Drill bit; 3. Clamping structure; 31. Base; 32. Pressure plate; 4. Floating structure; 41. Mounting plate; 42. Upright pole; 43. Floating rod; 44. Compression spring. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] To improve or solve the technical problem of low drilling efficiency due to only one set of drill bits in the existing technology, this utility model provides a drilling device for a dump truck lifting cylinder. The drilling device includes: a frame 1, including a worktable 11, a mounting frame 12 mounted on the worktable 11, and a sliding frame 13 mounted on the mounting frame 12; drilling structures 2, with two sets arranged along the length of the sliding frame 13, each set of drilling structures 2 including a sliding seat 21 slidably connected to the sliding frame 13, a lifting component 22 connected to the sliding seat 21, and a drill bit 23 connected to the lifting component 22; a clamping structure 3, including a slidably mounted base 31 on the worktable 11, and a pressure plate 32 arranged opposite to the base 31; the pressure plate 32 is connected to the lifting component 22 and forms a floating connection with the lifting component 22.

[0022] Figure 1 This is a schematic diagram of an embodiment of the drilling device for a lifting cylinder of a dump truck according to this utility model. Figure 1 As shown, in one or more embodiments, the drilling device for a dump truck lifting cylinder of the present invention includes a frame 1, a drilling structure 2 and a clamping structure 3.

[0023] See also Figure 1 In one or more embodiments, the frame 1 includes a worktable 11, a mounting bracket 12 mounted on the worktable 11, and a sliding bracket 13 mounted on the mounting bracket 12. The worktable 11 is generally rectangular. The mounting bracket 12 is positioned above the worktable 11 and close to one side of the worktable 11. Further, a sliding groove is formed on the worktable 11, and a limiting bolt 14 is arranged within the groove to slidably fix the clamping structure 3 to the worktable 11. Specifically, the sliding groove is generally T-shaped, and one end of the limiting bolt 14 is provided with a limiting disc that matches the sliding groove to prevent the limiting bolt 14 from disengaging from the worktable 11. The other end of the limiting bolt 14 is provided with a nut, which fixes the clamping structure 3 to the worktable 11. Further, a reference block 15 is provided on the worktable 11. The reference block 15 is generally angle iron in shape, and a reinforcing beam is provided on the reference block 15. The cylinder barrel abuts against the reference block 15 to position it, thereby determining the positions of the openings at both ends of the cylinder barrel. Furthermore, two mounting brackets 12 are provided, arranged side-by-side and located near both ends of the worktable 11. The two ends of the sliding bracket 13 are fixed to the two mounting brackets 12 respectively. A sliding groove is formed within the sliding seat 21, and a sliding column 16 is arranged within the sliding groove to facilitate adjustment of the drilling structure 2.

[0024] See also Figure 1Two sets of drilling structures 2 are arranged along the length of the sliding frame 13 for drilling holes at both ends of the cylinder. In one or more embodiments, each set of drilling structures 2 includes a sliding seat 21 that is slidably connected to the sliding frame 13, a lifting member 22 connected to the sliding seat 21, and a drill bit 23 connected to the lifting member 22. Specifically, the sliding seat 21 is shaped to match the sliding groove and is sleeved on the circumferential outer side of the sliding column 16. Exemplarily, the sliding seat 21 includes a first half and a second half connected by bolts; when the bolts are tightened, the first half and the second half are fixedly connected to the sliding column 16; when the bolts are loosened, the first half and the second half are clearance-fitted to the sliding column 16, allowing the sliding seat 21 to move along the length of the sliding column 16. Further, the lifting member 22 is fixed to the sliding seat 21 and moves with the sliding seat 21 to adapt to different drilling positions. Specifically, the lifting component 22 is a lifting cylinder, with its cylinder body mounted on the sliding seat 21. The piston rod of the lifting component 22 extends and retracts towards the worktable 11. The drill bit 23 is mounted on the piston rod of the lifting component 22. The extension and retraction of the piston rod of the lifting component 22 causes the drill bit 23 to move closer to or further away from the worktable 11, completing the drilling operation.

[0025] See also Figure 1The clamping structure 3 has two sets, each corresponding to one of the two drilling structures 2, used to clamp and fix both ends of the cylinder. In one or more embodiments, each clamping structure 3 includes a base 31 mounted on the worktable 11 and a pressure plate 32 connected to the lifting member 22. Specifically, the base 31 includes a flat portion and inclined portions on both sides of the flat portion, with blind holes provided on the flat portion to match the limiting bolts 14. The limiting bolts 14 are inserted into the blind holes, and the nuts are recessed into the blind holes to prevent the limiting bolts 14 from interfering with the cylinder. The pressure plate 32 is arranged in a mirror image symmetrically with the base plate, which will not be described in detail here. Furthermore, a through hole is provided on the pressure plate 32 so that the drill bit 23 can pass through the through hole to drill the cylinder. Furthermore, a floating structure 4 is provided between the base 31 and the pressure plate 32. The floating structure 4 includes a mounting plate 41 fixedly connected to the lifting member 22, uprights 42 fixedly connected to the mounting plate 41, and a floating rod 43 telescopically connected to the uprights 42. Specifically, the mounting plate 41 is sleeved on the circumferential outer side of the lifting member 22. The mounting plate 41 is generally rectangular, and multiple uprights 42 are arranged along the circumference of the mounting plate 41. For example, four uprights 42 are provided, each located at one of the four corners of the mounting plate 41. Further, the floating rod 43 is located at the end of the upright 42 away from the mounting plate 41, and a compression spring 44 is sleeved on the circumferential outer side of the floating rod 43. Specifically, the end of the upright 42 near the floating rod 43 is hollow, and a limit nut is provided at that end. The other end of the floating rod 43 is fixedly connected to the pressure plate 32. The two ends of the compression spring 44 abut against the pressure plate 32 and the limit nut, respectively.

[0026] The working principle of this utility model is as follows:

[0027] Adjust the two bases 31 to the appropriate positions, and then place the cylinder on the two bases 31, with one end of the cylinder abutting against the reference block 15; adjust the position of the pressure plate 32 according to the position of the two bases 31; the lifting component 22 drives the drill bit 23 and the mounting plate 41 to move downwards, the pressure plate 32 first abuts against the cylinder, and under the pressure of the compression spring 44, it cooperates with the base 31 to clamp the cylinder; then the lifting component 22 continues to drive the drill bit 23 and the mounting plate 41 to move downwards, the drill bit 23 connects with the cylinder through the through hole on the pressure plate 32, and then drills a hole in the cylinder.

[0028] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A drilling device for a self-dumping truck lifting cylinder, characterized in that, Include: Rack (1), including workbench (11), mounting rack (12) mounted on the workbench (11), and sliding frame (13) mounted on the mounting rack (12); Drilling structure (2) is provided with two groups along the length direction of the sliding frame (13), each group of the drilling structure (2) includes sliding seat (21) which forms sliding connection with the sliding frame (13), lifting piece (22) connected with the sliding seat (21), drill bit (23) connected with the lifting piece (22); Clamping structure (3), including the base (31) which is slidably mounted on the workbench (11), and the pressing plate (32) which is arranged opposite to the base (31); the pressing plate (32) is connected with the lifting piece (22), and forms floating connection with the lifting piece (22).

2. The drilling device for a self-unloading vehicle's lifting ram as claimed in claim 1, characterized in that, The sliding groove matched with the sliding seat (21) is formed on the sliding frame (13), and the sliding column (16) is arranged in the sliding groove; the sliding seat (21) is slidably sleeved on the circumferential outer side of the sliding column (16).

3. The drilling device for a self-unloading vehicle's lifting ram as claimed in claim 2, characterized in that The lifting piece (22) is a lifting oil cylinder, and the lifting piece (22) is fixed on the sliding seat (21).

4. The drilling device for a self-unloading vehicle's lifting ram as claimed in claim 1, characterized in that, The floating structure (4) is arranged between the pressing plate (32) and the lifting piece (22), the floating structure (4) includes the mounting plate (41) which forms fixed connection with the lifting piece (22), the vertical rod (42) which forms fixed connection with the mounting plate (41), and the floating rod (43) which forms telescopic cooperation connection with the vertical rod (42); one end of the floating rod (43) away from the vertical rod (42) is connected with the pressing plate (32), and the compression spring (44) is sleeved on the circumferential outer side of the floating rod (43).

5. A drilling device for a self-dumper hoist cylinder according to claim 4, characterized in that The vertical rod (42) is arranged with a plurality of along the circumference of the drill bit (23).

6. The drilling device for a self-unloading vehicle's lifting ram as claimed in claim 1, characterized in that, The reference block (15) adapted to abut one end of the cylinder is arranged on the workbench (11).

7. The drilling device for a self-unloading vehicle's lifting ram as claimed in claim 1, characterized in that, The sliding groove is formed on the workbench (11), and the limiting bolt (14) for fixing the base (31) on the workbench (11) is arranged in the sliding groove.

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