Nut type nylon block fixing structure of drill jumbo boom

Abstract

A nut type nylon block fixing structure of a drill jumbo boom effectively solves the problems that according to an existing sliding block fixing mode, a threaded seat is pressed on a sliding block mostly, but the threaded seat is prone to loosening, and the working efficiency of equipment is reduced. Comprising a telescopic boom body arranged on a rock drilling trolley, the telescopic boom body comprises an outer boom frame, an inner boom frame is arranged in the outer boom frame in a sliding mode, a movable gap is formed between the inner boom frame and the outer boom frame, nylon sliding blocks are arranged on the upper side and the lower side of the inner wall of the outer boom frame respectively, and the nylon sliding blocks are located in the movable gap; the nylon sliding block is ingenious in structure and convenient to use, through the arrangement of the grooves, the bolt holes, the through holes and the like, only the screws need to be inserted into the through holes and the corresponding bolt holes, the square nuts are placed in the grooves, the fixing performance of the nylon sliding block is higher through the cooperation of the square nuts and the screws, and therefore the nylon sliding block is more convenient to install, and the service life of the nylon sliding block is prolonged. And the nylon sliding block is not easy to loosen, so that the firmness is stronger.

Description

Technical Field

[0001] This utility model relates to the field of rock drilling rig technology, and in particular to a nut-type nylon block fixing structure for the boom of a rock drilling rig. Background Technology

[0002] The slider is an essential component of the boom structure. It provides support and reduces friction between adjacent outer and inner boom sections, improving sliding efficiency. Because of the relative movement between the inner and outer boom sections, the slider must be securely and reliably fixed.

[0003] Chinese patent application CN202320558384.3 discloses a sliding telescopic arm and a rock drilling rig boom, including an outer arm body, an inner arm body, a slider, and a stop bar. The inner arm body is slidably installed in the inner cavity of the outer arm body along the axial direction of the outer arm body. The stop bar is located on the inner wall of the outer arm body. The slider is detachably disposed in the gap between the outer arm body and the inner arm body. The slider can slide and connect with the stop bar, and within the sliding range of the inner arm body relative to the outer arm body, the slider can maintain support between the inner arm body and the outer arm body. The advantage is that, except for the stop bar in the outer arm body, the inner arm body and the outer arm body do not need additional processing to cooperate with the slider, thus avoiding weakening the strength of the inner arm body and the outer arm body. At the same time, the slider is disposed between the inner arm body and the outer arm body in a sliding connection form, which is convenient for disassembly, thus simplifying the structure of the sliding telescopic arm and saving costs.

[0004] The existing slider also has the following problems:

[0005] 1. The existing method of fixing the slider is basically to press the threaded seat on the slider to fix it. However, with the frequent use of the boom structure, the threaded seat is prone to loosening, which causes the slider to loosen and reduces the working efficiency of the equipment.

[0006] 2. The slider is usually fixed on the upper and lower sides of the inner wall of the outer boom. During the use of the rock drilling rig, water is easy to accumulate in the bolt groove of the lower slider, which causes the bolts to rust. This not only reduces the service life of the bolts, but also makes it more troublesome to replace the slider later. Utility Model Content

[0007] To address the above problems, this invention provides a nut-type nylon block fixing structure for a rock drilling rig boom, which has advantages such as stronger slider stability and less water accumulation in bolt holes.

[0008] The technical solution is that the present invention includes a telescopic boom body set on a rock drilling rig. The telescopic boom body includes an outer boom frame, an inner boom frame is slidably arranged inside the outer boom frame, and an movable gap is formed between the inner boom frame and the outer boom frame. Nylon sliders are respectively arranged on the upper and lower sides of the inner wall of the outer boom frame, and the nylon sliders are located within the movable gap.

[0009] The nylon slider has multiple symmetrically distributed grooves, and bolt holes that penetrate the nylon slider are formed in the grooves. The outer arm frame has multiple through holes that match the bolt holes.

[0010] The nylon slider has a through groove on the side near the inner boom;

[0011] Multiple drainage holes are evenly distributed in a circle through the grooves. An anti-slip strip is provided on the side of the nylon slider near the outer arm frame. The anti-slip strip includes two symmetrically distributed U-shaped strip components. Each U-shaped strip component includes multiple U-shaped strips that match the through holes. The U-shaped strips are coaxially arranged with the through holes. A reinforcing strip is fixed between adjacent U-shaped strips.

[0012] Preferably, the reinforcing strip is in the shape of a broken line, and multiple triangular gaps are formed between the reinforcing strip and the two U-shaped strips.

[0013] Preferably, a plurality of cross-connecting strips are fixed between the two U-shaped strip components.

[0014] Preferably, the inner surfaces at the outer edges of the plurality of U-shaped strips are arc-shaped.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. With the design of grooves, bolt holes, and through holes, you only need to insert the screw into the through hole and the corresponding bolt hole, and place the square nut in the groove. The cooperation between the square nut and the screw makes the nylon slider more secure. This design not only makes the installation of the nylon slider more convenient, but also makes the nylon slider less prone to loosening and more stable.

[0017] 2. With the addition of drainage holes, anti-slip strips, and U-shaped strips, after the nylon slider is fixed to the inner wall of the outer boom, a gap is formed between the drainage hole and the outer boom due to the anti-slip strips. Water in the groove enters the gap through the drainage hole and is discharged to the outside of the slider under the guidance of the U-shaped strips. At the same time, the multiple U-shaped strips, under the action of the reinforcing strips, have stronger support and stability, preventing excessive deformation. Attached Figure Description

[0018] Figure 1 This is a plan view of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the outer boom and nylon slider in this utility model.

[0020] Figure 3 This is a planar schematic diagram of the nylon slider in this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the nylon slider in this utility model.

[0022] Figure 5 This is a cross-sectional view of the nylon slider in this utility model.

[0023] Figure 6 This is a planar schematic diagram of the U-shaped strip in this utility model.

[0024] Figure 7 This is a three-dimensional schematic diagram of the U-shaped strip and connecting parts in this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Telescopic boom body; 2. Outer boom frame; 3. Inner boom frame; 4. Nylon slider; 5. Groove; 6. Bolt hole; 8. Through groove; 9. Drain hole; 10. U-shaped strip; 11. Reinforcing strip; 12. Connecting strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Depend on Figures 1 to 7 The invention includes a telescopic boom body 1 mounted on a rock drilling rig. The telescopic boom body 1 includes an outer boom 2, and an inner boom 3 is slidably mounted inside the outer boom 2. An movable gap is formed between the inner boom 3 and the outer boom 2. Nylon sliders 4 are respectively provided on the upper and lower sides of the inner wall of the outer boom 2. The nylon sliders 4 are located within the movable gap. The upper and lower sides of the inner boom 3 are in contact with the nylon sliders 4. When the inner boom 3 telescopically moves within the outer boom 2, the nylon sliders 4 reduce the direct contact between metals, thereby reducing the wear rate and extending the service life of the telescopic boom.

[0029] Considering the existing methods of fixing the nylon slider 4, which basically involve pressing a threaded seat onto the nylon slider 4 to fix it, the threaded seat is prone to loosening with frequent use of the boom structure, causing the nylon slider 4 to loosen and reducing the working efficiency of the equipment. The nylon slider 4 is provided with multiple symmetrically distributed grooves 5, and bolt holes 6 are provided in the grooves 5 to penetrate the nylon slider 4. The outer boom 2 is provided with multiple through holes that match the bolt holes 6. With the grooves 5, bolt holes 6 and through holes, it is only necessary to insert the screw into the through hole and the corresponding bolt hole 6, and place the square nut in the groove 5. The cooperation between the square nut and the screw makes the nylon slider 4 more secure. The advantage of this design is that it not only makes the installation of the nylon slider 4 more convenient, but also makes the nylon slider 4 less prone to loosening and more robust.

[0030] To further supplement the structure of the nylon slider 4, a through groove 8 is provided on the side of the nylon slider 4 near the inner arm frame 3. In this embodiment, the through groove 8 has multiple scissor-type structures. The through groove 8 can not only reduce the contact area between the nylon slider 4 and the telescopic arm, and reduce the friction during movement, so that the telescopic arm can extend and retract more smoothly, but also facilitate the discharge of water or gravel, and prevent impurities such as gravel from affecting the movement of the telescopic arm.

[0031] Considering that the nylon slider 4 is generally fixed on the upper and lower sides of the inner wall of the outer boom 2, water easily accumulates in the bolt groove of the lower nylon slider 4 during use, causing the bolts to rust. This not only reduces the service life of the bolts but also makes it more troublesome to replace the nylon slider 4 later. Multiple drainage holes 9 are evenly distributed in a circle through the multiple grooves 5. An anti-slip strip is provided on the side of the nylon slider 4 near the outer boom 2. The anti-slip strip includes two symmetrically distributed U-shaped strip 10 components. The U-shaped strip 10 component includes multiple U-shaped strips 10 that match the through holes. The U-shaped strip 10 is coaxially arranged with the through hole, and a reinforcing strip 11 is fixed between adjacent U-shaped strips 10. With the drainage hole 9, anti-slip strip and U-shaped strip 10 components, when the nylon slider 4 is fixed on the inner wall of the outer boom 2, due to the anti-slip strip, a gap is formed between the drainage hole 9 and the outer boom 2. Water in the groove 5 enters the gap through the drainage hole 9 and is discharged to the outside of the slider under the guidance of the U-shaped strip 10. At the same time, under the action of the reinforcing strip 11, the multiple U-shaped strips 10 have stronger support and stability, preventing excessive deformation.

[0032] refer to Figure 7 As shown, to further supplement the structure of the reinforcing strip 11, the reinforcing strip 11 is in the shape of a broken line, and multiple triangular gaps are formed between the reinforcing strip 11 and the two U-shaped strips 10. The triangular gaps make the two U-shaped strips 10 more stable.

[0033] refer to Figure 7As shown, in order to further enhance the friction between the two U-shaped strips 10 and the nylon slider 4 and the outer boom 2, a plurality of cross-connecting strips 12 are fixed between the two U-shaped strip 10 components.

[0034] refer to Figure 7 As shown, in order to facilitate the smooth drainage of water leaking from the drain hole 9 through the U-shaped strip 10, the inner side surface of the outer edge of the plurality of U-shaped strips 10 is arc-shaped.

[0035] When using this utility model:

[0036] First, attach the outer side of the nylon slider 4 to the inner wall of the outer boom 2, pass the screw through the through hole and the corresponding bolt hole 6, place the square nut in the groove 5, and connect the square nut with the screw thread. The cooperation between the square nut and the screw makes the nylon slider 4 more secure.

[0037] Then, due to the anti-slip strip, a gap is formed between the drain hole 9 and the outer arm frame 2. Water in the groove 5 enters the gap through the drain hole 9 and is discharged to the outside of the slider under the guidance of the U-shaped strip 10.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nut-type nylon block fixing structure for a rock drilling rig boom, comprising a telescopic boom body (1) mounted on the rock drilling rig, characterized in that, The telescopic boom body (1) includes an outer boom frame (2), an inner boom frame (3) is slidably arranged inside the outer boom frame (2), and an movable gap is formed between the inner boom frame (3) and the outer boom frame (2). Nylon sliders (4) are respectively arranged on the upper and lower sides of the inner wall of the outer boom frame (2), and the nylon sliders (4) are located in the movable gap. The nylon slider (4) has multiple symmetrically distributed grooves (5), and bolt holes (6) penetrating the nylon slider (4) are provided in the grooves (5). The outer arm frame (2) has multiple through holes that match the bolt holes (6). The nylon slider (4) has a through groove (8) on the side near the inner boom (3); Multiple drainage holes (9) are evenly distributed in a circle through the multiple grooves (5). The nylon slider (4) is provided with an anti-slip strip on the side near the outer arm frame (2). The anti-slip strip includes two symmetrically distributed U-shaped strip (10) components. The U-shaped strip (10) component includes multiple U-shaped strips (10) that match the through holes. The U-shaped strips (10) are coaxially arranged with the through holes. A reinforcing strip (11) is fixed between adjacent U-shaped strips (10).

2. The nut-type nylon block fixing structure for a rock drilling rig boom according to claim 1, characterized in that, The reinforcing strip (11) is in the shape of a broken line, and multiple triangular gaps are formed between the reinforcing strip (11) and the two U-shaped strips (10).

3. The nut-type nylon block fixing structure for a rock drilling rig boom according to claim 2, characterized in that, Multiple cross-connecting strips (12) are fixed between the two U-shaped strip (10) components.

4. The nut-type nylon block fixing structure for a rock drilling rig boom according to claim 3, characterized in that, The inner surfaces of the outer edges of the multiple U-shaped strips (10) are arc-shaped.

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