Composite drive wheel for hydraulic drilling tool

Abstract

The utility model discloses a kind of composite drive wheels of hydraulic drilling tool belongs to hydraulic drilling tool accessory technical field, the drive wheel includes drive wheel body, wheel hub and rotating shaft, further include fixedly connected in the buffer component and protection component of wheel hub, buffer component includes first connecting rod, second connecting rod, connecting rod, connecting block, second spring and damper, connecting block is fixed in wheel hub, second spring is connected between connecting rod and connecting block, damper is connected between first connecting rod and second connecting rod, constitute the flexible support that can absorb impact, protection component includes the protection plate with sealing ring embedded, sealing ring outside is equipped with first spring, forms elastic dynamic seal.The utility model is through integrated buffer and protection structure, effectively solved the problem that existing wheel is not stable and easily polluted under rugged working condition, with the advantages of running smoothly, strong impact resistance, reliable protection, long service life.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic drilling tool accessories technology, and in particular to a composite drive wheel for a hydraulic drilling tool. Background Technology

[0002] As large-scale engineering machinery, hydraulic drilling tools often need to operate in complex terrain and harsh environments. Their movement and support stability directly depend on the performance of the wheel system. Traditional hydraulic drilling tool wheel designs are usually relatively simple, and their structures mainly focus on meeting basic load-bearing and driving functions, often consisting of rigid connections.

[0003] When the drill bit travels on uneven or gravelly ground, this rigid wheel structure directly transmits the impact and vibration of the ground to the entire drill bit body. This not only seriously affects the stability of the equipment operation and reduces the positioning accuracy during operation, but also aggravates the vibration fatigue of key components such as the frame and hydraulic system. Over time, this may lead to loosening of structural connections or damage to components, shortening the overall service life of the equipment.

[0004] Existing wheels generally lack an effective, integrated shock absorption structure, making it difficult to absorb and mitigate impact loads from the ground at the source. This significantly reduces their environmental adaptability and operational reliability under complex working conditions.

[0005] Therefore, this utility model proposes a composite drive wheel for a hydraulic drilling tool to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problem that the existing hydraulic drill wheel lacks an effective buffer and shock absorption structure, resulting in poor stability when operating in rugged conditions and difficulty in adapting to complex terrain, this utility model aims to provide a composite drive wheel for hydraulic drills with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a composite drive wheel for a hydraulic drill bit, including a drive wheel body, a hub rotatably disposed within the drive wheel body via a rotating shaft, and a buffer assembly fixedly connected to the hub.

[0008] The buffer assembly includes a first link, a second link, a connecting rod, a connecting block, a second spring, and a damper.

[0009] Furthermore, the connecting block is fixed to the wheel hub, providing a stable mounting base for the buffer assembly. The outer wall of the first connecting rod is rotatably connected to the second connecting rod, which is rotatably connected to the connecting rod, forming a multi-link force transmission mechanism. The second spring is connected between the connecting rod and the connecting block to provide rebound force. The two ends of the damper are respectively connected to the first and second connecting rods. Through this unique structural combination, a flexible support system that can effectively disperse load and absorb vibration energy when the wheel is impacted is formed.

[0010] Preferably, the connecting block is fixed to the wheel hub by a retainer and a connecting plate. This combination of multiple components, including the connecting plate, retainer, and connecting block, allows the entire buffer assembly to be firmly installed on the wheel hub as a robust whole, ensuring effective force transmission and overall structural stability.

[0011] Preferably, one end of the connecting rod is also connected to a fixing plate. The fixing plate can effectively enhance the structural rigidity and strength of the connecting rod itself, and provide a reliable installation interface for the connection of other components.

[0012] Preferably, the composite drive wheel of the hydraulic drill bit also includes a protective component fixed to the outer end of the hub. This protective component is used to prevent external impurities from entering the interior of the hub and works in conjunction with the buffer component to improve the overall performance and service life of the wheel in harsh environments.

[0013] Preferably, the protective component includes a protective plate with an embedded sealing ring. The inner side of the protective plate has a sealing groove for accurately accommodating and positioning the sealing ring. Furthermore, the inner circumference of the sealing ring forms a circumferential sealing contact with the outer wall of the rotating shaft. This tight, surrounding contact structure can form a reliable dynamic sealing barrier.

[0014] Further preferably, the protective component also includes a first spring, which is disposed between the wheel hub and the sealing ring. Its function is to provide continuous, axial elastic support force to the sealing ring, ensuring that even if the wheel is impacted and undergoes slight displacement or wear occurs due to long-term use, the sealing ring can automatically reset through the compensation action of the spring, thereby maintaining its effective sealing effect for a long time.

[0015] Preferably, the protective plate of the protective component is locked to the wheel hub by the first bolt. This bolt connection method not only ensures a firm and reliable connection, but also provides convenience for subsequent maintenance, repair or replacement of components such as sealing rings.

[0016] Preferably, the composite drive wheel of the hydraulic drill bit also includes a second bolt for locking the connection between the shaft and the drive wheel body. By tightening the second bolt when the drill bit needs to be precisely positioned or to perform load-bearing operations, the wheel can be effectively prevented from rotating or shaking unexpectedly due to inertia or external disturbances, thus ensuring the stability and safety of the operation process.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of severe equipment vibration caused by the lack of effective shock absorption structure when the existing drill wheel travels on rough ground by setting a buffer component consisting of a linkage mechanism, a damper and a spring working together, thereby achieving the technical effect of improving the smoothness of drill operation and its impact resistance.

[0018] 2. This utility model solves the problem of poor wheel sealing, which allows impurities such as mud and dust to easily enter the wheel hub and cause accelerated wear by setting up a protective component consisting of a protective plate, a sealing ring, and a spring, and forming an elastic self-compensating dynamic seal between the sealing ring and the rotating shaft. It achieves the technical effect of effectively protecting rotating parts and extending the service life of the wheel.

[0019] 3. This utility model solves the problem that existing wheel structures have a single function and cannot simultaneously meet the dual requirements of operational stability and environmental protection under complex working conditions by integrating the buffer component and the protection component on the drive wheel. It achieves the technical effect of making the wheel have both excellent impact resistance and sealing protection capabilities, and comprehensively enhancing the reliability of the entire drilling machine. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a composite drive wheel for a hydraulic drilling tool proposed in this utility model. Figure 2 This is a schematic diagram of the damper section of the composite drive wheel of a hydraulic drilling tool proposed in this utility model. Figure 3 This is a schematic diagram of the fixed plate portion of the composite drive wheel of a hydraulic drilling tool proposed in this utility model. Figure 4 This is a schematic diagram of the sealing ring portion of the composite drive wheel of a hydraulic drilling tool proposed in this utility model.

[0021] Legend: 1. Drive wheel body; 2. Wheel hub; 3. Protective assembly; 301. Protective plate; 302. First bolt; 303. Sealing ring; 304. First spring; 305. Sealing groove; 4. Buffer assembly; 401. First connecting rod; 402. Second connecting rod; 403. Connecting rod; 404. Fixing plate; 405. Second spring; 406. Damper; 407. Connecting block; 408. Fixer; 409. Connecting plate; 5. Shaft; 6. Second bolt. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1 to 4 This utility model provides a composite drive wheel for a hydraulic drilling tool, which aims to solve the problems of insufficient buffering and shock absorption capacity and poor sealing and protection effect of existing hydraulic drilling tool wheels under rough working conditions.

[0024] like Figures 1 to 4 As shown, a composite drive wheel for a hydraulic drilling tool includes a drive wheel body 1 and a hub 2 rotatably disposed inside the drive wheel body 1 via a rotating shaft 5. This structure forms the basic drive and load-bearing frame of the wheel. The composite drive wheel of the hydraulic drilling tool also includes a buffer assembly 4 fixedly connected to the hub 2 and a protective assembly 3 fixed to the outer end of the hub 2. The buffer assembly 4 and the protective assembly 3 respectively realize the adaptive buffering and dustproof and waterproof functions of the wheel.

[0025] Specifically, the buffer assembly 4 includes a first connecting rod 401, a second connecting rod 402, a connecting rod 403, a connecting block 407, a second spring 405, and a damper 406. The connecting block 407 is fixed to the wheel hub 2, providing a stable mounting base for the entire buffer assembly 4. The first connecting rod 401 is rotatably connected to the second connecting rod 402, and the second connecting rod 402 is rotatably connected to the connecting rod 403, together forming a multi-link mechanism for dispersing and transmitting impact loads. The second spring 405 is connected between the connecting rod 403 and the connecting block 407, providing longitudinal rebound force and absorbing impact energy. The two ends of the damper 406 are respectively connected to the first connecting rod 401 and the second connecting rod 402, and consume the kinetic energy generated by the impact through internal hydraulic damping, reducing the vibration amplitude. Through the combination of the above structures, the buffer assembly 4 as a whole forms a flexible support structure that can absorb and disperse impacts, and is stably installed on the outside of the wheel hub 2.

[0026] To further enhance the reliability of the wheel in harsh environments, the composite drive wheel of this hydraulic drill also includes a protective assembly 3. The protective assembly 3 includes a protective plate 301, a first bolt 302, a sealing ring 303, a first spring 304, and a sealing groove 305. The protective plate 301 is locked to the outer end of the hub 2 by the first bolt 302, forming a stable external physical barrier. An annular sealing groove 305 is formed on the inner surface of the protective plate 301, and a sealing ring 303 is embedded within the sealing groove 305. In the assembled state, the inner circumference of the sealing ring 303... A circumferential sealing contact is formed with the outer wall of the rotating shaft 5. This tight fit constitutes a dynamic sealing interface. At the same time, a first spring 304 is provided between the protective plate 301 and the sealing ring 303. The first spring 304 is located between the wheel hub 2 and the sealing ring 303 and continuously applies an axial elastic support force to the sealing ring 303. This spring-supported structure ensures that when the wheel is impacted or undergoes a slight deflection, the sealing ring 303 can automatically rebound and reset, always maintaining an effective sealing pressure, thereby achieving continuous and reliable protection under dynamic working conditions.

[0027] In addition, to ensure the positioning stability and safety of the drill bit during drilling operations or when it stops moving, a second bolt 6 is also included. The second bolt 6 is used to lock the connection between the rotating shaft 5 and the drive wheel body 1 when needed, to prevent the wheel from slipping or shaking due to inertia or external disturbances.

[0028] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to make the connection between the buffer assembly 4 and the hub 2 more secure and reliable, please refer to... Figure 3 The connecting block 407 is fixedly connected to the retainer 408, and the retainer 408 is then fixedly connected to the wheel hub 2 via the connecting plate 409. Through the combined structure of the connecting plate 409, the retainer 408 and the connecting block 407, the entire buffer assembly 4 is firmly installed as a whole on the outside of the wheel hub 2.

[0029] As another preferred embodiment, to enhance the structural rigidity of the connecting rod 403 and provide an additional connection interface, please refer to... Figure 2 and Figure 3 One end of the connecting rod 403 is also connected to a fixing plate 404.

[0030] In another preferred embodiment, the first link 401 is rotatably connected to the second link 402, and the second link 402 is rotatably connected to the connecting rod 403. This connection method ensures that the components of the multi-link mechanism can move smoothly and in coordination when transmitting impact loads.

[0031] The working principle of the composite drive wheel of the hydraulic drilling tool of this utility model is as follows: When the wheel is traveling on uneven ground and is impacted by bumps or obstacles, the impact force is transmitted to the connecting rod 403 via the first connecting rod 401 and the second connecting rod 402. Then, it is dispersed and absorbed by the damper 406 and the second spring 405 working together. The damper 406 converts part of the impact kinetic energy into internal energy and dissipates it, quickly reducing the vibration amplitude. The second spring 405 absorbs the remaining impact energy through its own deformation and provides a rebound force after the external force is removed, so that the wheel structure returns to its initial position. This effectively reduces the vibration amplitude of the drill body and maintains the stable operation of the equipment in complex terrain.

[0032] During the movement of the drill bit or drilling operations, in order to prevent external impurities such as mud, sand, and dust from entering the interior of the hub 2, the protective component 3 is set up to play a role. The protective plate 301 is fixed to the outer end of the hub 2 by the first bolt 302. The sealing groove 305 on its inner side is embedded with a sealing ring 303. The inner circumference of the sealing ring 303 forms a circumferential sealing contact with the outer wall of the shaft 5, which effectively prevents impurities from entering the interior of the hub 2. When the wheel is subjected to external impact or off-center load, the first spring 304 set on the outer side of the sealing ring 303 can provide continuous elastic support, so that the sealing ring 303 can automatically rebound and reset, always maintaining a tight fit with the shaft 5, ensuring that the wheel still has good protective performance in harsh environments.

[0033] When the hydraulic drill stops moving or is in a load-bearing state, the second bolt 6 is used to lock the connection between the shaft 5 and the drive wheel body 1 to prevent the wheel from slipping or shaking due to inertia or external disturbances, and to ensure the positioning stability and safety of the drill during operation.

[0034] Through the synergistic effect of the buffer component 4 and the protective component 3, the hydraulic drill wheel can achieve stable support, effective buffering and dust protection under rugged terrain conditions, improving the wheel's impact resistance and service life, thereby enhancing the overall reliability and environmental adaptability of the drill in complex working conditions.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A composite drive wheel for a hydraulic drill bit, comprising a drive wheel body (1) and a hub (2) rotatably disposed within the drive wheel body (1) via a rotating shaft (5). Its features are, It also includes a buffer assembly (4) that is fixedly connected to the hub (2); The buffer assembly (4) includes a first connecting rod (401), a second connecting rod (402), a connecting rod (403), a connecting block (407), a second spring (405), and a damper (406). The connecting block (407) is fixed to the hub (2). The first connecting rod (401) is rotatably connected to the second connecting rod (402). The second connecting rod (402) is rotatably connected to the connecting rod (403). The second spring (405) is connected between the connecting rod (403) and the connecting block (407). The two ends of the damper (406) are respectively connected to the first connecting rod (401) and the second connecting rod (402).

2. The composite drive wheel of a hydraulic drilling tool according to claim 1, characterized in that, The connecting block (407) is fixed to the hub (2) by a retainer (408) and a connecting plate (409).

3. The composite drive wheel of a hydraulic drilling tool according to claim 1, characterized in that, One end of the connecting rod (403) is also connected to a fixing plate (404).

4. The composite drive wheel of a hydraulic drilling tool according to claim 1, characterized in that, It also includes a protective assembly (3) fixed to the outer end of the hub (2).

5. The composite drive wheel of a hydraulic drilling tool according to claim 4, characterized in that, The protective component (3) includes a protective plate (301) with a sealing ring (303) embedded in it. The inner side of the protective plate (301) is provided with a sealing groove (305) for embedding the sealing ring (303). The inner circumference of the sealing ring (303) is in circumferential sealing contact with the outer wall of the rotating shaft (5).

6. The composite drive wheel of a hydraulic drilling tool according to claim 5, characterized in that, The protective component (3) further includes a first spring (304), which is disposed between the hub (2) and the sealing ring (303) for applying elastic support to the sealing ring (303).

7. The composite drive wheel of a hydraulic drilling tool according to claim 4, characterized in that, The protective plate (301) of the protective component (3) is locked to the hub (2) by the first bolt (302).

8. The composite drive wheel of a hydraulic drilling tool according to claim 1, characterized in that, It also includes a second bolt (6) for locking the connection between the shaft (5) and the drive wheel body (1).

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