Rotatable hydraulic rock drill water supply mechanism
By introducing components such as collars, connecting plates, and sealing rings into the water supply mechanism of the hydraulic rock drill, the problems of wear and leakage at the connection points during rotation are solved, thus achieving the stability of the water supply system and the high efficiency and reliability of the rock drill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHUSHAN STEEL IND CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-05
AI Technical Summary
The water supply mechanism of existing hydraulic rock drills is prone to wear and leakage at the connection points during rotation, resulting in poor sealing and stability, which affects the working efficiency and reliability of the rock drill.
A water supply mechanism including components such as a collar, connecting plate, cover plate and sealing ring is designed. The sliding fit between the collar and the base and the setting of the sealing ring enhance the sealing performance of the rotary joint connection. Rubber pads reduce friction, and the use of fixing bolts and damping pads ensures a stable connection.
It effectively prevents sealing failure and leakage caused by environmental factors, ensures the stability of water supply, guarantees the efficient operation of rock drills, and facilitates maintenance.
Smart Images

Figure CN224200649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic rock drill technology, specifically a rotatable hydraulic rock drill water supply mechanism. Background Technology
[0002] Hydraulic rock drills play a crucial role in mining, tunnel excavation, and other engineering operations. To ensure the smooth progress of the drilling process and extend the service life of the rock drill, effective cooling and chip removal of its drill bit and other parts are necessary, which relies on a water supply system to provide a stable water flow.
[0003] A search revealed a rotatable hydraulic rock drill water supply mechanism disclosed in Chinese Patent Publication No. CN220522517U. Through the combined arrangement of a filter screen and a filter box, the flushing water can be filtered to remove impurities, thereby preventing sediment buildup at the drill bit and enabling efficient water delivery to improve the flushing efficiency at the drilling site.
[0004] However, in actual use, when the existing hydraulic rock drill water supply mechanism needs to rotate at different angles during drilling operations, the water supply connection is prone to wear and leakage problems. In particular, the connection between the main body and the rotary joint is difficult to maintain for a long time due to frequent relative rotation and harsh working environment. This affects the normal operation of the entire water supply system and reduces the working efficiency and reliability of the rock drill. Therefore, a new solution is needed to solve this problem. Utility Model Content
[0005] The aforementioned background technology addresses the shortcomings and defects of existing technologies, such as the inability to guarantee the stability and sealing of the connection points over a long period due to frequent relative rotation and harsh working environments, which in turn affects the normal operation of the entire water supply system and reduces the working efficiency and reliability of the rock drill.
[0006] The present invention discloses a rotatable hydraulic rock drill water supply mechanism, comprising a main body, a rotary joint on the main body, a collar on the outer side of the rotary joint, the lower end of the collar being rotatably mounted on the main body via a base, a cover plate on the upper end of the collar, and a sleeve on the collar.
[0007] Furthermore, the front end of the main body of the device is provided with a drill bit, and the drill bit is provided with a water outlet channel inside, which is connected to the rotary joint.
[0008] Furthermore, a connecting plate is installed on the upper end of the base, the bevel of the connecting plate is set in a "C" shape, the bevel of the lower end of the collar is set in an "L" shape, the lower end of the collar is slidably disposed with the connecting plate, and a sealing ring is provided on the inner side of the connecting plate.
[0009] Furthermore, one end of the cover plate is rotatably connected to the collar via a hinge, the other end of the cover plate is provided with a buckle between it and the collar, and a sealing ring is provided on the lower end face of the collar.
[0010] Furthermore, a fixing bolt is provided between the base and the device body, a fixing hole is provided on the base, and a threaded hole is provided on the device body at the corresponding position of the fixing hole. One end of the fixing bolt passes through the fixing hole and is threadedly connected to the threaded hole.
[0011] Furthermore, one end of the rotary joint is connected to a water source via a hose, the hose passes through the sleeve, the sleeve is rotatably mounted on the collar, and a rubber pad is provided on the inner wall of the sleeve.
[0012] Furthermore, an observation window is provided at the upper end of the cover plate, and a damping pad is provided between the base and the main body of the device.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model protects the connection of the rotary joint by including components such as a base, collar, connecting plate, and cover plate, thereby effectively resisting the influence of complex construction site environment and preventing leakage due to sealing failure caused by environmental factors; and fills the gaps with components such as sealing ring and rubber gasket to achieve high sealing performance, ensuring stable water supply, avoiding the impact of water leakage on the normal operation of rock drill, and ensuring efficient rock drilling operations.
[0015] 2. The cover plate of this utility model is connected to the collar by a hinge, and the other end is fixed by a buckle, which makes it convenient to open the cover plate to inspect and maintain the inside. Moreover, the upper part of the cover plate is provided with an observation window, which can be used to check the internal condition at any time, further facilitating maintenance work. In addition, the base and the main body of the equipment are connected by a fixing bolt. One end of the fixing bolt passes through the fixing hole of the base and is threadedly connected to the threaded hole on the main body of the equipment, so that the base is firmly installed on the main body of the equipment, providing a reliable foundation for the stable operation of the entire water supply mechanism, which is conducive to the long-term and reliable function of the water supply mechanism on the hydraulic rock drill. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial sectional view of the present invention;
[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is an exploded view of the present invention.
[0021] In the diagram: 1. Main body of the equipment; 2. Chisel tail; 3. Water outlet channel; 4. Base; 5. Collar; 6. Connecting plate; 7. Cover plate; 8. Observation window; 9. Hinge; 10. Buckle; 11. Rotary joint; 12. Hose; 13. Sleeve; 14. Fixing bolt; 15. Fixing hole; 16. Threaded hole. Detailed Implementation
[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0023] Please see Figure 1 , Figure 2 As shown, the rotatable hydraulic rock drill water supply mechanism of this utility model includes a main body 1, a rotary joint 11 on the main body 1, a drill tail 2 at the front end of the main body 1, a water outlet channel 3 inside the drill tail 2, the water outlet channel 3 communicating with the rotary joint 11, and a collar 5 on the outside of the rotary joint 11. The lower end of the collar 5 is rotatably mounted on the main body 1 through a base 4.
[0024] When in use, install the probe tip 2 at the front end of the main body 1 of the equipment, and ensure that the water outlet channel 3 inside the probe tip 2 is correctly connected to the rotary joint 11 on the main body 1 of the equipment, so as to ensure that the water can flow smoothly from the water source into the water outlet channel 3 of the probe tip 2 through the rotary joint 11.
[0025] See Figure 1 , Figure 4As shown, a fixing bolt 14 is provided between the base 4 and the equipment body 1. A fixing hole 15 is provided on the base 4. A threaded hole 16 is provided on the equipment body 1 at the corresponding position of the fixing hole 15. One end of the fixing bolt 14 passes through the fixing hole 15 and is threadedly connected to the threaded hole 16. By driving the fixing bolt 14 to rotate and removing the fixing bolt 14 from the threaded hole 16, the fixing restriction on the base 4 is released, so that the base 4 can be disassembled and replaced. By reversing the operation, the fixing bolt 14 engages with the threaded hole 16 to fix the base 4.
[0026] See Figure 2 , Figure 3 As shown, a connecting plate 6 is installed on the upper end of the base 4. The beveled section of the connecting plate 6 is set in the shape of "C". The beveled section of the lower end of the collar 5 is set in the shape of "L". The lower end of the collar 5 is slidably set with the connecting plate 6. A sealing ring is set on the inner side of the connecting plate 6. The sealing ring is made of fluororubber. A cover plate 7 is set on the upper end of the collar 5. An observation window 8 is set on the upper end of the cover plate 7. The interior can be observed through the observation window 8, which makes it convenient for staff to understand the operation of the equipment.
[0027] See Figure 2 , Figure 4 As shown, a damping pad is provided between the base 4 and the main body 1 of the equipment. The damping pad is made of rubber. During installation, the damping pad is fixed on the main body 1 with the help of glue to prevent it from shifting during installation. One end of the cover plate 7 is rotatably connected to the collar 5 through the hinge 9. The other end of the cover plate 7 is provided with a buckle 10 between it and the collar 5. A sealing ring is provided on the lower end face of the collar 5. A sleeve 13 is provided on the collar 5.
[0028] In this embodiment, one end of the rotary joint 11 is connected to a water source via a hose 12. The water source is the water storage tank of the equipment at the work site. The hose 12 passes through the sleeve 13, and the sleeve 13 is rotatably mounted on the collar 5. A rubber pad is provided on the inner wall of the sleeve 13, and the rubber pad is made of nitrile rubber.
[0029] The implementation principle is as follows: when the water supply device is started, water flows into the rotary joint 11 through the hose 12. Since the hose 12 passes through the sleeve 13 and the sleeve 13 is rotatably mounted on the collar 5, the problem of the hose 12 getting tangled during the rotation of the equipment is avoided to a certain extent. At the same time, the rubber pad on the inner wall of the sleeve 13 can reduce the friction between the hose 12 and the sleeve 13 and protect the hose 12.
[0030] After water enters the rotary joint 11, since the rotary joint 11 is connected to the water outlet channel 3 inside the drill bit 2, the water will flow along the water outlet channel 3 to the front end of the drill bit 2. During the rock drilling operation, the water can play a role in cooling the drill bit and reducing dust.
[0031] During rock drilling operations, the collar 5 can rotate on the main body 1 of the equipment via the base 4, depending on actual needs. The sliding fit design between the lower end of the collar 5 and the connecting plate 6 allows the collar 5 to rotate flexibly. At the same time, the sealing rings on the inner side of the connecting plate 6 and the lower end face of the collar 5 can prevent water from leaking from the connection between the collar 5 and the base 4. Through the cooperation between the collar 5, the base 4 and the cover plate 7, the rotary joint 11 is wrapped and isolated, thereby avoiding the influence of harsh external environments and ensuring the working efficiency and reliability of the rock drill.
[0032] Operators can observe the internal condition of the collar 5 at any time through the observation window 8 on the cover plate 7. When internal maintenance or inspection is required, the buckle 10 is opened and the cover plate 7 is opened by rotating the hinge 9, so that internal components can be inspected, repaired or replaced.
[0033] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A rotatable hydraulic rock drill water supply mechanism, comprising a main body (1), characterized in that: A rotary joint (11) is provided on the main body (1) of the equipment. A collar (5) is provided on the outside of the rotary joint (11). The lower end of the collar (5) is rotatably mounted on the main body (1) of the equipment via a base (4). A cover plate (7) is provided on the upper end of the collar (5). A sleeve (13) is provided on the collar (5).
2. The water supply mechanism for a rotatable hydraulic rock drill according to claim 1, characterized in that: The front end of the main body (1) of the device is provided with a drill bit (2), and the drill bit (2) is provided with a water outlet channel (3), which is connected to the rotary joint (11).
3. The water supply mechanism for a rotatable hydraulic rock drill according to claim 1, characterized in that: A connecting plate (6) is installed on the upper end of the base (4). The inclined section of the connecting plate (6) is set in the shape of "C". The inclined section of the lower end of the collar (5) is set in the shape of "L". The lower end of the collar (5) is slidably disposed with the connecting plate (6). A sealing ring is provided on the inner side of the connecting plate (6).
4. The water supply mechanism for a rotatable hydraulic rock drill according to claim 1, characterized in that: One end of the cover plate (7) is rotatably connected to the collar (5) via a hinge (9), and a buckle (10) is provided between the other end of the cover plate (7) and the collar (5). A sealing ring is provided on the lower end face of the collar (5).
5. The water supply mechanism for a rotatable hydraulic rock drill according to claim 1, characterized in that: A fixing bolt (14) is provided between the base (4) and the device body (1). A fixing hole (15) is provided on the base (4). A threaded hole (16) is provided on the device body (1) at the position corresponding to the fixing hole (15). One end of the fixing bolt (14) passes through the fixing hole (15) and is threadedly connected to the threaded hole (16).
6. The water supply mechanism for a rotatable hydraulic rock drill according to claim 1, characterized in that: One end of the rotary joint (11) is connected to a water source via a hose (12). The hose (12) passes through the sleeve (13). The sleeve (13) is rotatably mounted on the collar (5). A rubber pad is provided on the inner wall of the sleeve (13).
7. A rotatable hydraulic rock drill water supply mechanism according to claim 1, characterized in that: An observation window (8) is provided at the upper end of the cover plate (7), and a damping pad is provided between the base (4) and the main body of the equipment (1).
Citation Information
Patent Citations
Rotatable hydraulic rock drill water supply mechanism
CN220522517U