A hydraulic rock drill bit quick buckle mounting structure

Abstract

The utility model relates to hydraulic rock drill technical field, concretely is a kind of quick buckle mounting structure of drill bit of hydraulic rock drill, including drill bit, drill rod is inserted in the drill bit, the bottom of the surface of drill rod is fixed with the reinforcing disc that is attached in the top end of drill bit, the top of reinforcing disc is uniformly fixed with multiple groups of support, automatic positioning assembly that is used in cooperation with support is arranged between drill bit and drill rod, the automatic positioning assembly includes the arc-shaped through slot that is evenly opened on reinforcing disc and is adapted for use with support, the top end of drill bit is uniformly fixed with multiple groups of reinforcing seat that can penetrate arc-shaped through slot, the bent end of reinforcing seat penetrates support and is clamped in the top end of reinforcing disc, the bottom end of each group of support is inserted into the plugboard extending into arc-shaped through slot, by setting automatic positioning assembly, reinforcing seat with self-locking structure is used, drill bit and drill rod can be quickly assembled, under the premise of ensuring assembly stability, assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic rock drill technology, and more specifically, to a quick-clamping installation structure for the drill bit of a hydraulic rock drill. Background Technology

[0002] A hydraulic rock drill is a machine that uses circulating high-pressure oil as power to drive a drill rod and drill bit to drill holes in rock through impact rotation. It uses high-pressure oil to drive a piston to reciprocate, generating impact force to push the drill bit to strike the rock. It is also equipped with a rotation mechanism to assist drilling. The drill bit is an important component of a hydraulic rock drill.

[0003] For example, patent number CN218934324U discloses an eccentric ball tooth drill bit for a hydraulic rock drill, including a drill body, a connecting rod fixedly connected to the top of the drill body, and a drill bit welded to the top of the connecting rod. A conical head is fixedly connected to the top of the drill bit, an vent is provided on the outer wall of the drill bit, and a drain is provided on the top of the drill bit. This eccentric ball tooth drill bit for a hydraulic rock drill is equipped with bolts, external threads, a mounting cap, internal threads, a mounting groove, a limiting groove, a mounting rod, a limiting plate, and a hydraulic rock drill rod. By inserting the mounting rod on the hydraulic rock drill rod into the mounting groove, the limiting plate can be locked into the limiting groove for fastening. After installation, it can be fixed by bolts on both sides.

[0004] For example, patent number CN212225208U discloses a mining rock drill that facilitates the replacement of drill bits, including a handle, a buffer block, and a housing. The outer surface of the handle is fitted with a rubber sleeve, and a connecting rod is connected to the lower part of the handle. A fixing ring is installed inside the buffer block, and the buffer block is located below the connecting rod. A sealing mechanism is provided on the outer surface of the housing, and the housing is located below the buffer block. A connecting mechanism is arranged below the sealing mechanism, and a rock drill bit is connected below the connecting mechanism. A power supply is fixed inside the housing, and a partition is provided below the power supply. A motor is installed below the partition.

[0005] However, in practical use, traditional hydraulic rock drill bits and rods are mostly assembled using threaded installation and positioning, and require the use of appropriate tools for fastening. It is impossible to assemble the bits and rods using a quick self-locking method, which makes the assembly process of hydraulic rock drill bits and rods very troublesome and greatly reduces the assembly efficiency of hydraulic rock drill bits and rods. Therefore, a quick snap-fit ​​installation structure for hydraulic rock drill bits is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a quick snap-fit ​​installation structure for hydraulic rock drill bits, so as to solve the problem that the prior art cannot use a quick self-locking method to assemble the drill bit and drill rod, which makes the assembly process of hydraulic rock drill bits and drill rods very troublesome and greatly reduces the assembly efficiency of hydraulic rock drill bits and drill rods.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a quick-clamping installation structure for a hydraulic rock drill bit, including a drill bit, a drill rod inserted inside the drill bit, a reinforcing plate fixed to the bottom of the surface of the drill rod and attached to the top of the drill bit, multiple sets of brackets evenly fixed to the top of the reinforcing plate, and an automatic positioning component that works with the brackets between the drill bit and the drill rod.

[0008] The automatic positioning component includes arc-shaped through slots evenly spaced on the reinforcing plate and adapted to the bracket. Multiple sets of reinforcing seats, capable of penetrating the arc-shaped through slots, are evenly fixed to the top of the drill bit. The bent ends of the reinforcing seats penetrate the bracket and are snapped into the top of the reinforcing plate. Each set of brackets has a plate inserted with its bottom end extending into the arc-shaped through slot. Both sides of each set of plate are in contact with the sidewall of the arc-shaped through slot and the side of the reinforcing seat. Multiple sets of first springs are fixed to each set of brackets. A top ring, sleeved on the drill rod, is fixed to the top of each first spring. The top of the plate is fixed to the bottom of the top ring. A positioning rod is inserted at the top of each set of reinforcing seats and at the side of the bracket. The bottom end of the positioning rod is inserted into the reinforcing plate, and the top end is fixed to the top ring.

[0009] The drill rod is uniformly fixed with multiple sets of limiting rods on the top ring. The limiting rods are rotatably mounted with a bottom frame whose bottom end fits against the top ring. A base frame is slidably arranged inside the bottom frame. The top ring has a square hole for inserting the base frame. A second spring whose bottom end is fixed to the base frame is fixed at the top of the inner cavity of the bottom frame.

[0010] The top ring has a shielding sleeve fixed to the outside of its bottom, with its bottom end attached to the top of the reinforcing plate.

[0011] Each set of reinforcing seats has an F-shaped structure, and the front and back of each set of reinforcing seats have an arc-shaped structure. The top length of the reinforcing seat is the same as the length of the inner cavity of the arc-shaped through groove.

[0012] Each of the base frames has an arc-shaped bottom end.

[0013] The number of reinforcing seats on the drill bit is at least six.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In the above scheme, by setting an automatic positioning component, the insert plate can be quickly lifted and the first spring can be stretched simultaneously until the reinforcing plate contacts the drill bit. At this time, the top bent end of the reinforcing seat can be completely removed from the arc-shaped through groove. Then, the drill bit is rotated, which can simultaneously drive the reinforcing seat to rotate until the top of the reinforcing seat is separated from the bottom end of the insert plate. At this time, the elastic rebound of the first spring can drive the insert plate to return to the arc-shaped through groove, thereby limiting the position of the reinforcing seat and preventing it from rotating. The positioning rod will be inserted into the bent end of the reinforcing seat simultaneously for secondary positioning of the reinforcing seat. At this time, the drill bit and drill rod can be quickly assembled by using the reinforcing seat with a self-locking structure, which improves the assembly efficiency while ensuring assembly stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial sectional view of the structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a partial perspective view of the structure of this utility model;

[0020] Figure 5 This is a partial cross-sectional view of the structure of the reinforcing disc of this utility model.

[0021] [Figure Labels]

[0022] 1. Drill bit; 2. Drill rod; 3. Reinforcing plate; 4. Arc-shaped through groove; 5. Reinforcing base; 6. Bracket; 7. Top ring; 8. Covering sleeve; 9. First spring; 10. Insert plate; 11. Positioning rod; 12. Square hole; 13. Limiting rod; 14. Bottom frame; 15. Second spring; 16. Base frame. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1: Please refer to Figures 1 to 5This utility model provides a technical solution: a quick-release mounting structure for a hydraulic rock drill bit, including a drill bit 1, a drill rod 2 inserted inside the drill bit 1, a reinforcing plate 3 fixed to the bottom of the surface of the drill rod 2 and attached to the top of the drill bit 1, multiple sets of supports 6 evenly fixed to the top of the reinforcing plate 3, and an automatic positioning component for use with the supports 6 between the drill bit 1 and the drill rod 2. The automatic positioning component includes arc-shaped through slots 4 evenly opened on the reinforcing plate 3 and adapted to the supports 6, and multiple sets of through slots 4 evenly fixed to the top of the drill bit 1. The reinforcing base 5 of the bracket 4 has its bent end penetrating through the bracket 6 and snapping into the top of the reinforcing plate 3. Each set of reinforcing bases 5 has an F-shaped structure, which limits the overall shape of the reinforcing base 5 to improve the snapping stability between the reinforcing base 5 and the reinforcing plate 3. The front and back of each set of reinforcing bases 5 have arc-shaped structures so that the reinforcing base 5 can adapt to the shape of the arc-shaped through groove 4, so that the reinforcing base 5 can rotate and move up and down stably within the arc-shaped through groove 4. The top length of the reinforcing base 5 is the same as the length of the inner cavity of the arc-shaped through groove 4, so that the reinforcing base 5 can be stably rotated and moved up and down within the arc-shaped through groove 4. The drill bit 1 moves up and down within the arc-shaped groove 4 to avoid obstruction. Each set of brackets 6 is equipped with a plate 10 whose bottom end extends into the arc-shaped groove 4. The number of reinforcing seats 5 on the drill bit 1 is at least six. This limitation on the number of reinforcing seats 5 is to improve the snap-fit ​​stability, thereby improving the assembly stability of the drill bit 1 and the drill rod 2. Both sides of each set of plate 10 are in contact with the side wall of the arc-shaped groove 4 and the side of the reinforcing seat 5. Each set of brackets 6 is fixed with multiple sets of first springs 9. The top of each first spring 9 is fixed with a top ring 7 sleeved on the drill rod 2. The top of 10 is fixed to the bottom of the top ring 7. Each set of reinforcing base 5 is equipped with a positioning rod 11 at the top and side of the bracket 6. The bottom end of the positioning rod 11 is inserted into the reinforcing plate 3, and the top end of the positioning rod 11 is fixed to the top ring 7. A shielding sleeve 8 with its bottom end attached to the top of the reinforcing plate 3 is fixed to the outer side of the bottom of the top ring 7. The shielding sleeve 8 is designed to shield the position between the top ring 7 and the reinforcing plate 3, so as to prevent gravel or other debris from entering between the top ring 7 and the reinforcing plate 3, increasing the difficulty of cleaning and affecting the normal disassembly and assembly of the drill bit 1.

[0025] By setting an automatic positioning component, when the drill rod 2 is inserted into the drill bit 1, the reinforcing seat 5 will enter the arc-shaped through groove 4 and simultaneously lift the insert plate 10 quickly, and simultaneously stretch the first spring 9 until the reinforcing plate 3 contacts the drill bit 1. At this time, the top bent end of the reinforcing seat 5 can be completely removed from the arc-shaped through groove 4. Then, the drill bit 1 is rotated, which can simultaneously drive the reinforcing seat 5 to rotate until the top of the reinforcing seat 5 is separated from the bottom end of the insert plate 10. At this time, the elastic rebound of the first spring 9 can drive the insert plate 10 to return to the arc-shaped through groove 4, thereby limiting the position of the reinforcing seat 5 and preventing it from rotating. The positioning rod 11 will be inserted into the bent end of the reinforcing seat 5 at the same time to perform secondary positioning of the reinforcing seat 5. At this time, the reinforcing seat 5 with a self-locking positioning structure can quickly assemble the drill bit 1 and the drill rod 2, improving assembly efficiency while ensuring assembly stability.

[0026] Example 2: Based on Example 1, in order to avoid displacement of the top ring 7 and affect the assembly stability of the drill bit 1 and the drill rod 2, a self-locking structure is required to quickly lock the position of the top ring 7. Multiple sets of limiting rods 13 are evenly fixed on the drill rod 2 and are located on the top ring 7. A bottom frame 14 with its bottom end attached to the top ring 7 is rotatably mounted on the limiting rod 13. A base frame 16 is slidably arranged inside the bottom frame 14. A square hole 12 is opened on the top ring 7 for the base frame 16 to be inserted. A second spring 15 with its bottom end fixed to the base frame 16 is fixed at the top of the inner cavity of the bottom frame 14. The bottom end of each set of bottom frames 14 has an arc-shaped structure so that the bottom frame 14 can rotate stably and avoid obstruction.

[0027] The elastic rebound of the second spring 15 can drive the base frame 16 to move down quickly and insert it into the corresponding square hole 12, thereby quickly limiting the bottom frame 14 in the vertical state. At this time, the position of the top ring 7 can be further limited by the bottom frame 14 with the self-locking structure, which further improves the overall stability of the top ring 7 and avoids displacement from affecting the assembly stability of the drill bit 1 and the drill rod 2. The snap-locking method facilitates quick self-locking and unlocking.

[0028] The working process of this utility model is as follows:

[0029] When the drill bit 1 and drill rod 2 are not assembled, the base frame 16 is not inserted into the square hole 12, and the base frame 14 is in a tilted outward swing state, which is movable to avoid interfering with the normal movement of the top ring 7. During assembly, the user inserts the bottom end of the drill rod 2 into the drill bit 1. As the distance between the reinforcing plate 3 and the drill bit 1 continues to approach, the reinforcing seat 5 will be pre-inserted into the corresponding arc-shaped through slot 4, and the insert plate 10 and the top ring 7 will be lifted synchronously, thereby stretching the first spring 9. When the bottom end of the reinforcing plate 3 contacts the top end of the drill bit 1, the top bent end of the reinforcing seat 5 can be completely removed from the arc-shaped through groove 4. At this point, the user can rotate the drill bit 1, which will simultaneously rotate the reinforcing seat 5 and engage the top bent end of the reinforcing seat 5 with the top of the reinforcing plate 3, until the top end of the reinforcing seat 5 disengages from the bottom end of the insert plate 10. Then, using the elastic rebound of the first spring 9, the insert plate 10 can be driven to move downwards and return to its original position within the arc-shaped through groove 4, thus allowing the reinforcing seat to... The position of 5 is limited to prevent the reinforcing base 5 from rotating. At the same time, the positioning rod 11 will be inserted into the bent end of the reinforcing base 5 to perform secondary positioning of the reinforcing base 5. At this time, the reinforcing base 5 with self-locking structure can quickly assemble the drill bit 1 and the drill rod 2. While ensuring assembly stability, it improves assembly efficiency. At this time, the bottom of the shielding sleeve 8 will simultaneously contact the top of the reinforcing plate 3 to shield the position between the top ring 7 and the reinforcing plate 3 to prevent foreign objects from entering. Then, the user pulls the base frame 16 upward to compress the second spring 15. At the same time, the user rotates the base frame 14 until it contacts the top of the top ring 7, until the base frame 16 is rotated to the position corresponding to the square hole 12. At this time, the elastic rebound of the second spring 15 can drive the base frame 16 to move down and insert into the corresponding square hole 12, limiting the position of the base frame 14. Thus, the position of the top ring 7 can be further limited by the base frame 14.

[0030] Compared to the prior art and common methods that only involve threaded connections for installation, which require the use of appropriate tools or considerable manual force to tighten the drill bit 1 and drill rod 2, making the assembly process of the hydraulic rock drill drill bit 1 and drill rod 2 cumbersome and time-consuming, and simultaneously reducing the assembly efficiency, this application utilizes an automatic positioning component. When the drill rod 2 is inserted into the drill bit 1, only the two need to be aligned and the drill bit 1 rotated to quickly assemble the drill bit 1 and drill rod 2. Furthermore, the self-locking structure ensures assembly stability while improving assembly efficiency. Compared to the prior art, this application achieves faster assembly speed and greater applicability while maintaining assembly stability.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-release snap-fit ​​installation structure for hydraulic rock drill bits, characterized in that, Includes a drill bit (1), a drill rod (2) is inserted inside the drill bit (1), a reinforcing plate (3) is fixed to the bottom of the surface of the drill rod (2) and attached to the top of the drill bit (1), and multiple sets of brackets (6) are evenly fixed to the top of the reinforcing plate (3). An automatic positioning component that works with the brackets (6) is provided between the drill bit (1) and the drill rod (2).

2. The quick-release buckle installation structure for a hydraulic rock drill bit according to claim 1, characterized in that, The automatic positioning component includes arc-shaped through slots (4) evenly spaced on the reinforcing plate (3) and adapted to the bracket (6). Multiple sets of reinforcing seats (5) that can penetrate the arc-shaped through slots (4) are evenly fixed to the top of the drill bit (1). The bent ends of the reinforcing seats (5) penetrate the bracket (6) and are snapped onto the top of the reinforcing plate (3). Each set of brackets (6) is provided with insert plates (10) whose bottom ends extend into the arc-shaped through slots (4). Both sides of each set of insert plates (10) are aligned with the sidewalls of the arc-shaped through slots (4). The first spring (9) is fixed on the side of the reinforcing base (5) and each set of brackets (6). The top of the first spring (9) is fixed with a top ring (7) sleeved on the drill rod (2). The top of the insert plate (10) is fixed to the bottom of the top ring (7). A positioning rod (11) is inserted at the top of each set of reinforcing bases (5) and at the side of the bracket (6). The bottom of the positioning rod (11) is inserted on the reinforcing plate (3), and the top of the positioning rod (11) is fixed on the top ring (7).

3. The quick-release mounting structure for a hydraulic rock drill bit according to claim 2, characterized in that, Multiple sets of limiting rods (13) are evenly fixed on the top ring (7) on the drill rod (2). A bottom frame (14) with its bottom end attached to the top ring (7) is rotatably mounted on the limiting rod (13). A base frame (16) is slidably arranged inside the bottom frame (14). A square hole (12) for inserting the base frame (16) is opened on the top ring (7). A second spring (15) with its bottom end fixed to the base frame (16) is fixed at the top of the inner cavity of the bottom frame (14).

4. The quick-release buckle installation structure for a hydraulic rock drill bit according to claim 2, characterized in that, The top ring (7) has a shielding sleeve (8) whose bottom end is attached to the top of the reinforcing plate (3) and fixed to the outer side of the bottom.

5. The quick-release buckle installation structure for a hydraulic rock drill bit according to claim 2, characterized in that, Each set of reinforcing bases (5) has an F-shaped structure. The front and back of each set of reinforcing bases (5) have arc-shaped structures. The top length of the reinforcing base (5) is the same as the length of the inner cavity of the arc-shaped through groove (4).

6. The quick-release mounting structure for a hydraulic rock drill bit according to claim 3, characterized in that, The bottom end of each of the base frames (14) is an arc-shaped structure.

7. The quick-release mounting structure for a hydraulic rock drill bit according to claim 2, characterized in that, The number of reinforcing seats (5) on the drill bit (1) is at least six.

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