Damping speed-regulating high-pressure self-rotating nozzle
By employing damping speed regulation design and sealing structure, problems such as self-rotating nozzle speed control and large equipment size have been solved, achieving the effects of compact structure, rapid speed regulation, low maintenance cost and high adaptability.
Patent Information
- Application Number
- CN202520148338.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing self-rotating nozzles have a high rotation speed, and the jet is prone to entrainment and scattering, so a speed regulation device must be equipped. In addition, existing technologies have the problems of large equipment size and high complexity.
The device employs a damping speed control design, utilizing a combination of disc springs and needle roller bearings. Friction is controlled by adjusting the thread engagement length of the sleeve and the inlet connector, thereby achieving speed adjustment of the self-rotating nozzle. Combined with the sealing structure of O-rings and PTFE gaskets, high-pressure sealing is ensured.
It achieves a simple and compact structure, rapid speed regulation response, reduced maintenance costs, suitability for complex environments, reduced failure risk, and improved system flexibility and adaptability.
Smart Images
Figure CN223875270U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of mining engineering technology, and specifically relates to a damping speed regulation high-pressure self-rotation spray head. BACKGROUND
[0002] Traditional mechanical punching methods have many problems, including loud noise, frequent vibration, low work efficiency, strict limitations on space and environment, etc. In order to solve the defects of traditional mechanical punching methods, abrasive water jet drilling technology has emerged as the times require. This technology uses high-pressure water jet to carry abrasive particles and cuts through impact and grinding, thereby achieving efficient drilling. Compared with traditional mechanical methods, abrasive water jet drilling technology has the advantages of high work efficiency, environmental friendliness, safety, etc., and has small space limitations, so it has broad development prospects.
[0003] Currently, there are four types of spray heads used in abrasive water jet drilling technology: multi-nozzle fixed type, internal rotation type, forced rotation type and self-rotation type. Among them, the multi-nozzle fixed type has a simple structure, but the hole is irregular; the internal rotation type requires a large nozzle aperture and a large equipment flow; the forced rotation type must be equipped with a power source, and the equipment has a large volume and high requirements for working space; compared with the above three types of spray heads, the self-rotation type does not need external force and can rotate itself only by the reaction force of the jet, and has regular hole forming, easy guidance and good application prospects.
[0004] The existing self-rotation spray head has a high speed, and the jet is prone to entrainment and scattering, so a speed adjusting device must be provided to realize its excellent characteristics.
[0005] To solve the above problems, a damping speed regulation high-pressure self-rotation spray head is proposed in the present application. UTILITY MODEL CONTENTS
[0006] In view of the problems in the related art, the utility model provides a damping speed regulation high-pressure self-rotation spray head to overcome the above technical problems existing in the prior art.
[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0008] A damping speed regulation high-pressure self-rotation spray head, comprising a sleeve, a rotating shaft is rotatably connected to the inner wall of the sleeve, a nozzle guard is threadedly connected to one end of the rotating shaft, a multi-hole rotating nozzle is threadedly connected in the nozzle guard, a guard connecting sleeve is installed between the nozzle guard and the rotating shaft, a liquid inlet connector is threadedly connected to the right end of the inner side of the sleeve, the liquid inlet connector and the rotating shaft cooperate with each other, an adjusting mechanism is arranged in the sleeve, and the adjusting mechanism and the rotating shaft cooperate with each other.
[0009] Preferably, the adjusting mechanism comprises a needle bearing movably mounted in the sleeve and a disc spring, a left end of the disc spring is fixedly connected with an inner wall of a left side of the sleeve, a right end of the disc spring is in contact with an inner ring of the needle bearing, and the inner ring of the needle bearing is fixedly connected with the rotating shaft.
[0010] By the contact of the disc spring with the bottom of the sleeve and the inner ring of the needle bearing, the friction force between the disc spring and the inner ring of the needle bearing can be controlled by adjusting the screwing length of the sleeve and the liquid inlet joint, so that the rotating speed of the self-rotating nozzle can be controlled.
[0011] Preferably, the outer side of the rotating shaft is sleeved with a first O-ring, and the first O-ring is located on the inner side of the liquid inlet joint.
[0012] By the arrangement of the first O-ring, the sealing effect between the rotating shaft and the liquid inlet joint can be increased.
[0013] Preferably, a rotating shaft connecting sleeve is mounted on the inner side of the liquid inlet joint, and a second O-ring and a Teflon pad are sleeved on the outer side of the rotating shaft connecting sleeve, and the second O-ring and the Teflon pad are located on the inner side of the liquid inlet joint.
[0014] The high-pressure sealing between the liquid inlet joint and the rotating shaft can be realized by the combined sealing of the second O-ring and the Teflon pad.
[0015] In summary, the technical effects and advantages of the self-rotating nozzle are as follows:
[0016] (1) Simple and compact structure: the self-rotating nozzle adopts the design concept of damping speed regulation, does not need additional reduction gear or damping oil, and therefore does not increase the volume and weight of the nozzle, which is beneficial to improve the flexibility of the system and the adaptability to complex environments.
[0017] (2) Low manufacturing and maintenance cost: the disc spring, which is a key speed regulating component, is a standard part, is easy to obtain, has a simple structure and is not easy to be damaged, and has low maintenance cost. This feature makes the self-rotating nozzle have a longer service life and a lower maintenance cost, which saves a lot of maintenance cost and time cost for users. The self-rotating nozzle proposed in the application will exhibit more significant economic advantages and practical value.
[0018] (3) Rapid speed regulation response: the screwing length of the adjusting sleeve and the liquid inlet joint is used to control the friction force between the disc spring and the inner ring of the needle bearing, so as to adjust the rotating speed of the self-rotating nozzle, so that the speed regulation response is more rapid and accurate.
[0019] (4) More suitable for special environments: the speed regulation method of the self-rotating nozzle does not need external motors and other driving devices, but only uses simple mechanical structures, which is more suitable for special working environments such as coal mines, reduces the fault risk and safety hazard of the system. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the whole structure schematic view of the utility model;
[0021] Figure 2 It is the porous rotating nozzle structure schematic view of the utility model.
[0022] In the drawing,
[0023] 1, sleeve; 2, shield connecting sleeve; 3, porous rotating nozzle; 4, nozzle shield; 5, disc spring; 6, needle bearing; 7, rotating shaft; 8, first O-ring; 9, liquid inlet connector; 10, rotating shaft connecting sleeve; 11, second O-ring; 12, fluorine pad. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0025] Referring to Figures 1-2 A damping speed-regulating high-pressure self-rotating nozzle, comprising a sleeve 1, a rotating shaft 7 is rotatably connected to the inner wall of the sleeve 1, a nozzle shield 4 is threadedly connected to one end of the rotating shaft 7, a porous rotating nozzle 3 is threadedly connected in the nozzle shield 4, a shield connecting sleeve 2 is installed between the nozzle shield 4 and the rotating shaft 7, a liquid inlet connector 9 is threadedly connected to the inner side of the right end of the sleeve 1, the liquid inlet connector 9 cooperates with the rotating shaft 7, an adjusting mechanism is arranged in the sleeve 1, and the adjusting mechanism cooperates with the rotating shaft 7.
[0026] Referring to Figure 1 The adjusting mechanism comprises a needle bearing 6 and a disc spring 5, the needle bearing 6 is movably installed in the sleeve 1, the left end of the disc spring 5 is fixedly connected to the left inner wall of the sleeve 1, the right end of the disc spring 5 is in contact with the inner ring of the needle bearing 6, the inner ring of the needle bearing 6 is fixedly connected to the rotating shaft 7, the disc spring 5 is in contact with the bottom of the sleeve 1 and the inner ring of the needle bearing 6, the friction force between the disc spring 5 and the inner ring of the needle bearing 6 can be controlled by adjusting the screwing length of the sleeve 1 and the liquid inlet connector 9, so as to control the rotating speed of the self-rotating nozzle.
[0027] Referring to Figure 1 The outer side of the rotating shaft 7 is sleeved with a first O-ring 8, and the first O-ring 8 is located inside the liquid inlet connector 9. Through the arrangement of the first O-ring 8, the sealing effect between the rotating shaft 7 and the liquid inlet connector 9 can be increased.
[0028] Referring to Figure 1The inner side of the liquid inlet joint 9 is provided with a rotating shaft connecting sleeve 10, the outer side of the rotating shaft connecting sleeve 10 is provided with a second O-shaped ring 11 and a Teflon pad 12, the second O-shaped ring 11 and the Teflon pad 12 are located in the inner side of the liquid inlet joint 9, and the combination sealing of the second O-shaped ring 11 and the Teflon pad 12 can realize high-pressure sealing between the liquid inlet joint 9 and the rotating shaft 7.
[0029] Working principle: when working, high-pressure water and abrasives enter the liquid inlet joint 9 and are sprayed out through the rotating shaft connecting sleeve 10, the rotating shaft 7, the shroud connecting sleeve 2 and the porous rotating nozzle 3; the porous rotating nozzle 3 and the nozzle shroud 4 and the rotating shaft 7 are connected through pipe threads, under the reaction of the jet flow sprayed out by the porous rotating nozzle 3, the shroud connecting sleeve 2 and the rotating shaft 7 and the inner ring of the needle bearing 6 are driven to rotate, the sleeve 1 and the liquid inlet joint 9 are connected through pipe threads, the disc spring 5 is in contact with the bottom of the sleeve 1 and the inner ring of the needle bearing 6, the rotation speed of the self-rotating nozzle can be controlled by adjusting the threaded length of the sleeve 1 and the liquid inlet joint 9, so as to control the friction force between the disc spring 5 and the inner ring of the needle bearing 6; the combination sealing of the second O-shaped ring 11 and the Teflon pad 12 can realize high-pressure sealing between the liquid inlet joint 9 and the rotating shaft 7.
[0030] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A damped speed-regulated high-pressure rotary jet, comprising a sleeve (1), characterized in that, The inner wall of the sleeve (1) is rotatably connected with a rotating shaft (7), one end of the rotating shaft (7) is threadedly connected with a nozzle shield (4), the nozzle shield (4) is threadedly connected with a porous rotating nozzle (3) inside, the nozzle shield (4) and the rotating shaft (7) are installed with a shield connecting sleeve (2), the right end of the sleeve (1) is threadedly connected with a liquid inlet connector (9) on the inner side, the liquid inlet connector (9) and the rotating shaft (7) are matched with each other, the sleeve (1) is provided with an adjusting mechanism, and the adjusting mechanism and the rotating shaft (7) are matched with each other.
2. A high pressure rotary atomizer with speed control by damping according to claim 1, characterized in that The adjusting mechanism comprises a needle bearing (6) and a disc spring (5), the needle bearing (6) is movably installed in the sleeve (1), the left end of the disc spring (5) is fixedly connected with the left inner wall of the sleeve (1), the right end of the disc spring (5) is in contact with the inner ring of the needle bearing (6), and the inner ring of the needle bearing (6) is fixedly connected with the rotating shaft (7).
3. A high pressure rotary atomizer with speed control by damping according to claim 1, characterized in that The outer side of the rotating shaft (7) is sleeved with a first O-shaped ring (8), and the first O-shaped ring (8) is located on the inner side of the liquid inlet connector (9).
4. The high pressure rotary atomizer as claimed in claim 1, wherein, The inner side of the liquid inlet connector (9) is installed with a rotating shaft connecting sleeve (10), the outer side of the rotating shaft connecting sleeve (10) is sleeved with a second O-shaped ring (11) and a fluorine pad (12), and the second O-shaped ring (11) and the fluorine pad (12) are located on the inner side of the liquid inlet connector (9).