Large arm bracket cross beam of rock drill

Abstract

The utility model discloses a large arm bracket cross beam of a rock drill, which relates to the technical field of rock drills and comprises a bent cross beam and bent supporting legs, the bent supporting legs are positioned at two ends of the bottom of the bent cross beam, one side of the inner wall of each bent supporting leg is fixedly connected with a limiting guide rail, and a reinforcing piece is slidably connected in each bent supporting leg. The top of the outer wall of the reinforcing piece extends into the bent cross beam, the center of the top face of the reinforcing piece is fixedly connected with a positioning assembly, the bottom end of the inner wall of the positioning assembly is fixedly connected with a plurality of horizontal guide rails, and the interior of the positioning assembly is slidably connected with a plurality of positioning insertion plates. The step of manually and repeatedly adjusting bolt hole positions is thoroughly eliminated, rapid and accurate alignment of the bent supporting leg and the bent beam is achieved, meanwhile, the design that the outer wall of the top of the reinforcing piece is matched with the inner wall of the bent beam is adopted, an original narrow contact face is expanded into a three-dimensional supporting structure, stress is evenly dispersed into the beam, and therefore the bending effect is improved. And sinking or warping caused by local overload is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rock drill technology, specifically a rock drill boom support beam. Background Technology

[0002] A rock drill is an engineering device used to drill holes in hard materials such as rock and concrete. Its working principle is to drive the internal mechanical structure with external power so that the drill bit breaks the rock by high-frequency impact or rotation, thereby forming a hole. This equipment is widely used in mining, tunnel construction, building foundation construction and other fields. It can significantly improve work efficiency and reduce the intensity of manual labor. Its compact structure makes it easy to transport and install, and it is an indispensable basic tool in geotechnical engineering.

[0003] The lifting beam and outriggers of existing rock drills are usually connected by bolts. However, due to the limitations of the one-piece bending process, the contact surface between the two is narrow and the flatness is limited when aligning them. During assembly, the angle needs to be repeatedly adjusted to align the bolt holes, which is time-consuming and prone to deviation. Even after tightening, the small contact area may lead to uneven stress. When the equipment is subjected to vibration or load changes during operation, the connection between the lifting beam and outriggers may cause slight indentation or warping of the contact surface due to metal fatigue over time, resulting in a decrease in the overall rigidity of the beam. In view of this, we provide a rock drill boom support beam. Utility Model Content

[0004] The purpose of this utility model is to make up for the shortcomings of the existing technology and provide a crossbeam for the boom support of a rock drill.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rock drill boom support beam, comprising a bent beam and bent legs, wherein the bent legs are located at both ends of the bottom of the bent beam, and a limit guide rail is fixedly connected to one side of the inner wall of the bent legs; a reinforcing member is slidably connected inside the bent legs, and the top of the outer wall of the reinforcing member extends into the interior of the bent beam; a positioning component is fixedly connected to the center of the top surface of the reinforcing member, and multiple horizontal guide rails are fixedly connected to the bottom of the inner wall of the positioning component; multiple positioning inserts are slidably connected inside the positioning component, and a compression spring is fixedly connected to one side of the corresponding surface of the positioning insert; multiple vertical guide rails are fixedly connected to both sides of the inner wall of the positioning component, and a pressing plate is slidably connected to one side of the outer wall of the vertical guide rail; and multiple snap-fit ​​slots are provided on the inner wall of the bent beam.

[0006] As described above, one side of the outer wall of the limiting guide rail partially penetrates the inner side of the reinforcing member, and the inner side of the reinforcing member is slidably connected to the outer wall of the limiting guide rail.

[0007] As mentioned above, the top of the outer wall of the reinforcing member fits perfectly with the inner wall of the bent crossbeam, and the bending part of the reinforcing member is provided with multiple corner braces of different sizes.

[0008] As described above, the lower end of the positioning plate is provided with a sliding groove that matches the horizontal guide rail, and the bottom end of the positioning plate is slidably connected to the outer wall of the horizontal guide rail.

[0009] As described above, the vertical guide rail is slidably connected to one side of the outer wall of the pressing plate, and the pressing plate is located at the top of the inner cavity of the positioning component.

[0010] As described above, the positioning component is generally straight, and has semi-circular ends at both ends. The positioning component is embedded inside the bent crossbeam.

[0011] As described above, the top surface of the positioning insert plate has multiple 45° inclined surfaces, and one of the 45° inclined surfaces on the top surface of the positioning insert plate is in close contact with the bottom surface of the pressing plate. One side of the outer wall of the positioning insert plate is embedded into the snap-fit ​​slot.

[0012] Compared with existing technologies, this rock drill boom support beam has the following advantages:

[0013] I. After connecting the reinforcing member and the bending support leg, the positioning component can be inserted into the top opening of the bending beam. Through the automatic engagement of the positioning plate and the snap-fit ​​slot, the step of manually and repeatedly adjusting the bolt hole position is completely eliminated, realizing the rapid and accurate alignment of the bending support leg and the bending beam. At the same time, the design of the outer wall of the top of the reinforcing member fitting with the inner wall of the bending beam expands the originally narrow contact surface into a three-dimensional support structure, so that the stress is evenly distributed to the inside of the beam, avoiding dents or warping caused by local overload.

[0014] Second, this utility model allows the reinforcing member to slide along the outer wall of the limiting guide rail. When the reinforcing member slides to the bottom, it is fixed to one side of the bending surface of the bending leg with bolts, which further improves the alignment efficiency of the device during assembly and installation.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the bending support leg of this utility model;

[0018] Figure 3 This is a partially disassembled three-dimensional structural diagram of the reinforcing member of this utility model;

[0019] Figure 4This is a partial cross-sectional three-dimensional structural diagram of the bent crossbeam of this utility model;

[0020] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the positioning insert plate of this utility model;

[0021] Figure 6 This is a partial three-dimensional structural diagram of the vertical guide rail of this utility model.

[0022] In the diagram: 1. Bending crossbeam; 101. Snap-fit ​​slot; 2. Bending support leg; 201. Limiting guide rail; 3. Reinforcing member; 4. Positioning assembly; 401. Horizontal guide rail; 402. Positioning insert plate; 403. Compression spring; 404. Vertical guide rail; 405. Pressing plate. Detailed Implementation

[0023] 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.

[0024] like Figure 1-6 As shown, this utility model provides a technical solution: a rock drill boom support beam, including a bent beam 1 and bent legs 2. The bent legs 2 are located at both ends of the bottom of the bent beam 1, and a limit guide rail 201 is fixedly connected to one side of the inner wall of the bent legs 2. A reinforcing member 3 is slidably connected inside the bent legs 2, and the top of the outer wall of the reinforcing member 3 extends into the interior of the bent beam 1. A positioning component 4 is fixedly connected to the center of the top surface of the reinforcing member 3, and multiple horizontal guide rails 401 are fixedly connected to the bottom end of the inner wall of the positioning component 4. Multiple positioning inserts 402 are slidably connected inside the positioning component 4, and a compression spring 403 is fixedly connected to one side of the corresponding surface of the positioning insert 402. Multiple vertical guide rails 404 are fixedly connected to both sides of the inner wall of the positioning component 4, and a pressing plate 405 is slidably connected to one side of the outer wall of the vertical guide rail 404. Multiple snap-fit ​​slots 101 are opened on the inner wall of the bent beam 1.

[0025] By automatically engaging the positioning plate 402 with the snap-fit ​​slot 101, the step of manually and repeatedly adjusting the bolt hole position is completely eliminated, enabling the bending support leg 2 and the bending beam 1 to be quickly and accurately aligned. At the same time, the design of the top outer wall of the reinforcing member 3 fitting with the inner wall of the bending beam 1 expands the originally narrow contact surface into a three-dimensional support structure, so that the stress is evenly distributed to the inside of the beam, avoiding dents or warping caused by local overload.

[0026] like Figures 1-3As shown, one side of the outer wall of the limiting guide rail 201 partially penetrates the inner side of the reinforcing member 3, and the inner side of the reinforcing member 3 is slidably connected to the outer wall of the limiting guide rail 201. The partial penetration of the limiting guide rail 201 can prevent the reinforcing member 3 from sliding further after sliding to the designated position.

[0027] As mentioned above, the top of the outer wall of the reinforcing member 3 fits perfectly with the inner wall of the bent beam 1, and multiple corner braces of different sizes are provided at the bend of the reinforcing member 3. The arc surface of the top of the outer wall of the reinforcing member 3 matches the arc surface of the inner wall of the bent beam 1, which can distribute the pressure and vibration borne by the bent beam 1 to the interior of the reinforcing member 3. At the same time, the corner braces can enhance the structural strength of the reinforcing member 3 itself.

[0028] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the lower end of the positioning plate 402 is provided with a sliding groove that matches the horizontal guide rail 401, and the bottom end of the positioning plate 402 is slidably connected to the outer wall of the horizontal guide rail 401. The horizontal guide rail 401 can prevent the positioning plate 402 from deviating from the preset sliding trajectory.

[0029] As described above, the vertical guide rail 404 is slidably connected to one side of the outer wall of the pressing plate 405, and the pressing plate 405 is located at the top of the inner cavity of the positioning component 4. The vertical guide rail 404 effectively restricts the movement trajectory of the pressing plate 405.

[0030] As described above, the positioning component 4 is generally straight, and the two ends of the positioning component 4 have semi-circular ends. The positioning component 4 is embedded inside the bent beam 1. By utilizing the shape design of the positioning component 4, it can ensure that the bent beam 1 cannot rotate in the horizontal direction after being embedded inside the bent beam 1, and the positional relationship between the bent beam 1 and the reinforcing member 3 is initially defined.

[0031] As described above, the top surface of the positioning plate 402 has multiple 45° inclined surfaces, and one of the 45° inclined surfaces on the top surface of the positioning plate 402 is in close contact with the bottom surface of the pressing plate 405. One side of the outer wall of the positioning plate 402 is embedded into the snap-fit ​​slot 101. The inclined surface of the outer wall of the positioning plate 402 near the outside can retract into the positioning component 4 when the positioning component 4 is inserted into the bent beam 1. After insertion, it extends out and engages with the snap-fit ​​slot 101 to initially fix the connection between the bent beam 1 and the reinforcing member 3. Then, bolts can be used to further reinforce the connection between the bent beam 1 and the reinforcing member 3.

[0032] Working principle: The partial penetration of the limiting guide rail 201 prevents the reinforcing member 3 from sliding further after reaching the designated position. The arc surface at the top of the outer wall of the reinforcing member 3 matches the arc surface of the inner wall of the bent beam 1, distributing the pressure and vibration borne by the bent beam 1 to the interior of the reinforcing member 3. Simultaneously, the use of the corner brace plate enhances the structural strength of the reinforcing member 3. The horizontal guide rail 401 prevents the positioning insert 402 from deviating from the preset sliding trajectory. The vertical guide rail 404 effectively limits the movement trajectory of the pressing plate 405. The shape of the positioning component 4 is designed... The design ensures that the bent beam 1 cannot rotate horizontally after being embedded inside the bent beam 1, thus initially defining the positional relationship between the bent beam 1 and the reinforcing member 3. The outer wall of the positioning insert 402, near the outer slope, can retract into the positioning component 4 when the positioning component 4 is inserted into the bent beam 1. After insertion, it extends out and engages with the snap-fit ​​slot 101, initially fixing the connection between the bent beam 1 and the reinforcing member 3. Subsequently, bolts can be used to further reinforce the connection between the bent beam 1 and the reinforcing member 3.

[0033] 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 crossbeam for a rock drill boom support, comprising a bent crossbeam (1) and bent support legs (2), characterized in that: The bending support leg (2) is located at both ends of the bottom of the bending crossbeam (1), and a limit guide rail (201) is fixedly connected to one side of the inner wall of the bending support leg (2). A reinforcing member (3) is slidably connected inside the bending support leg (2), and the top of the outer wall of the reinforcing member (3) extends into the interior of the bending crossbeam (1). A positioning component (4) is fixedly connected to the center of the top surface of the reinforcing member (3), and multiple horizontal guide rails (401) are fixedly connected to the bottom of the inner wall of the positioning component (4). Multiple positioning inserts (402) are slidably connected inside the positioning component (4), and a compression spring (403) is fixedly connected to one side of the corresponding surface of the positioning insert (402). Multiple vertical guide rails (404) are fixedly connected to both sides of the inner wall of the positioning component (4), and a pressing plate (405) is slidably connected to one side of the outer wall of the vertical guide rail (404). Multiple snap-fit ​​slots (101) are opened on the inner wall of the bending crossbeam (1).

2. The crossbeam of the boom support frame of a rock drill according to claim 1, characterized in that: The outer wall of the limiting guide rail (201) partially penetrates the inner wall of the reinforcing member (3), and the inner wall of the reinforcing member (3) is slidably connected to the outer wall of the limiting guide rail (201).

3. The rock drill boom support beam according to claim 2, characterized in that: The top of the outer wall of the reinforcing member (3) fits perfectly with the inner wall of the bent crossbeam (1), and the bending part of the reinforcing member (3) is provided with multiple corner braces of different sizes.

4. The crossbeam of the boom support frame of a rock drill according to claim 1, characterized in that: The bottom of the positioning plate (402) is provided with a sliding groove that matches the horizontal guide rail (401), and the bottom of the positioning plate (402) is slidably connected to the outer wall of the horizontal guide rail (401).

5. The crossbeam of the boom support of a rock drill according to claim 1, characterized in that: The vertical guide rail (404) is slidably connected to one side of the outer wall of the pressing plate (405), and the pressing plate (405) is located at the top of the inner cavity of the positioning component (4).

6. The crossbeam of the boom support of a rock drill according to claim 5, characterized in that: The positioning component (4) is generally straight, and the two ends of the positioning component (4) have semi-circular ends. The positioning component (4) is embedded inside the bent crossbeam (1).

7. The rock drill boom support beam according to claim 6, characterized in that: The top surface of the positioning insert (402) has multiple 45° inclined surfaces, and one of the 45° inclined surfaces on the top surface of the positioning insert (402) is in close contact with the bottom surface of the pressing plate (405). One side of the outer wall of the positioning insert (402) is embedded into the slot (101).

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