A spray device in a milling machine
By designing the adapter assembly and seal structure in the spray device in the milling excavator, the problem of device leakage is solved, and the sealing and spraying effect are improved.
Patent Information
- Application Number
- CN202421550286.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The spray devices inside the existing milling excavator are prone to leakage, resulting in damage to the internal parts of the fuselage and affecting the spray effect.
A spray device inside a milling excavator is designed, adopting an adapter assembly and a seal structure, including an adapter seat, a second pipe, a first seal, a second seal and a bearing assembly, and the sealing is improved by the design of the seal and bearing assembly, and the leakage is monitored through a pressure detector.
It improves the sealing of the internal spray device, prevents water leakage, protects internal parts of the fuselage, and enhances the spray and dust reduction effects.
Smart Images
Figure CN222701977U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of internal spraying of milling and excavating machines, and in particular to an internal spraying device of a milling and excavating machine. Background Art
[0002] Milling machines are used in tunnel excavation work. During the rock breaking and excavation process, there is a large problem of dust. The environment is extremely harsh, visibility is low, and safety accidents are very likely to occur, which greatly threatens the production safety and health of operators. Therefore, dust removal devices must be used in the mining process. The dust removal method used in the mining process is mainly sprinkling water to reduce dust.
[0003] The seals of the existing internal spray devices of milling machines are easily damaged during use, causing water in the internal spray device to enter the interior of the machine body, that is, the internal spray device leaks, and the leaked water will damage the internal parts of the machine body. In addition, the damage to the seals will also cause the water pressure in the water pipe to decrease, thereby affecting the spray effect of the milling machine. Utility Model Content
[0004] The embodiment of the present application provides an internal spray device for a milling excavator, which solves the problem in the prior art that the internal spray device for a milling excavator is prone to leakage, thereby causing damage to the internal parts of the machine body and affecting the spray effect of the milling excavator. The sealing performance of the internal spray device is improved, and the leakage of the internal spray device can be monitored, thereby achieving the purpose of better spray effect and dust reduction effect of the milling excavator.
[0005] In the first aspect, an embodiment of the utility model provides a spray device in a milling machine, comprising a drill bit, a first pipe, an adapter assembly, an end cover, an end shield, a water inlet pipe and a pressure detector; the adapter assembly comprises an adapter seat, a second pipe, a first seal, a second seal and a bearing assembly; one end of the second pipe is arranged inside the adapter seat, the other end of the second pipe extends out of the end cover and is connected to one end of the first pipe, and the other end of the first pipe is connected to the drill bit; the first seal and the second seal are arranged between the adapter seat and the second pipe, and a first cavity is arranged between the first seal and the second seal; the end cover is arranged on the outside of the second pipe and is connected to the end shield; the adapter seat is provided with a detection hole, and the detection hole is close to the first cavity; the pressure detector is connected to the outside of the adapter seat and is close to the detection hole; the bearing assembly is arranged between the end cover and the second pipe; the input end of the water inlet pipe is connected to an external water source through the end cover, and the output end of the water inlet pipe is connected to the outside of the adapter seat; the drill bit is provided with a plurality of drainage holes.
[0006] In a possible implementation, the adapter assembly also includes a first scraper ring and a second scraper ring; the first scraper ring and the second scraper ring are sequentially arranged between the adapter seat and the second pipe in the water flow direction, the first scraper ring and the second scraper ring are arranged in the first cavity, and the first scraper ring abuts against the first sealing member.
[0007] In a possible implementation, the adapter assembly further includes a third seal; and the third seal is further disposed between the second pipe and the end cover.
[0008] In a possible implementation, the adapter assembly also includes a first baffle and a second baffle; the first baffle is arranged on the outside of the second pipe, the first baffle is connected to the side of the adapter seat close to the first pipe, and the second seal abuts the first baffle; the second baffle is arranged on the outside of the second pipe, the second baffle is connected to the side of the end cover away from the first pipe, and the third seal abuts the second baffle.
[0009] In a possible implementation, the bearing assembly includes a first bearing and a second bearing; the first bearing and the second bearing are both arranged between the second pipe and the end cover; the first bearing abuts against the third seal, and a second cavity is arranged between the second bearing and the first bearing.
[0010] In a possible implementation, an oil cup is further included; the end cover is provided with an oil injection hole, the oil injection hole includes a radial oil injection hole and an axial oil injection hole; the input end of the axial oil injection hole is connected to the oil cup, the output end of the axial oil injection hole is connected to the radial oil injection hole, and the radial oil injection hole is connected to the second cavity;
[0011] In a possible implementation, it also includes a filter assembly; the filter assembly includes a filter plate, an elastic member and a sealing cone; the filter plate is connected to the second pipe; one end of the elastic member is connected to the filter plate, and the other end of the elastic member is connected to the sealing cone; the sealing cone can open or close the second pipe.
[0012] In a possible implementation, a thread is provided at one end of the second pipe away from the end cover; and the thread can cooperate with the first pipe.
[0013] In a possible implementation manner, a cleaning hole is formed at one end of the second pipe away from the end cover.
[0014] One or more technical solutions provided by this application have at least the following technical effects:
[0015] The utility model embodiment generally adopts a drill bit, a first pipe, an adapter assembly, an end cover, an end shield, a water inlet pipe and a pressure detector; wherein the adapter assembly includes an adapter seat, a second pipe, a first seal, a second seal and a bearing assembly; the input end of the water inlet pipe passes through the end cover and is connected to an external water source, and the output end of the water inlet pipe is connected to the outside of the adapter seat; one end of the second pipe is arranged inside the adapter seat, the other end of the second pipe extends out of the end cover and is connected to one end of the first pipe, and the other end of the first pipe is connected to the drill bit; the external water source enters the interior of the adapter seat through the water inlet pipe, and the water inside the adapter seat can be transmitted to the first pipe through the second pipe, and finally transported to the drill bit through the first pipe; a first seal and a second seal are arranged between the adapter seat and the second pipe, and the first seal and the second seal The adapter can seal between the adapter and the second water pipe to prevent water from leaking into the interior of the equipment and causing damage to the internal parts of the equipment; a first cavity is arranged between the first seal and the second seal; the adapter is provided with a detection hole, which is close to the first cavity; the pressure detector is connected to the outside of the adapter and close to the detection hole; the air pressure at the first cavity can be monitored by the pressure detector. When the first seal is damaged and causes water flow and air pressure leakage, the first cavity is connected to the air pressure of the adapter, and the pressure detector detects that the air pressure here is abnormal, that is, the problem of damage to the first seal can be discovered in time, so that the machine is shut down for maintenance; the end cover is arranged on the outside of the second pipe and connected to the end cover; the bearing assembly is arranged between the end cover and the second pipe; the second pipe can rotate around the end cover through the bearing assembly. The present application solves the problem that the spray device in the milling excavator is prone to leakage in the prior art, which will damage the internal parts of the fuselage and affect the spray effect of the milling excavator. The sealing performance of the internal spray device is improved, and the leakage of the internal spray device can be monitored, so as to achieve the purpose of better spray effect and dust reduction effect of the milling excavator. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of a spray device in a milling machine provided in an embodiment of the present application;
[0018] Figure 2 A cross-sectional view of a switching assembly provided in an embodiment of the present application;
[0019] Figure 3 A cross-sectional view of a first scraper ring and a second scraper ring provided in an embodiment of the present application;
[0020] Figure 4 A cross-sectional view of an end cap provided in an embodiment of the present application.
[0021] Icons: 1-drill bit; 2-first pipe; 3-adapter assembly; 31-adapter seat; 32-second pipe; 33-first seal; 34-second seal; 35-bearing assembly; 351-first bearing; 352-second bearing; 36-first scraper ring; 37-second scraper ring; 38-third seal; 390-first baffle; 391-second baffle; 392-first cavity; 393-second cavity; 4-end cover; 41-oil filling hole; 411-radial oil filling hole; 412-axial oil filling hole; 5-end cover; 6-water inlet pipe; 7-pressure detector; 8-oil cup; 9-filter assembly; 91-filter plate; 92-elastic member; 93-sealing cone; 10-cleaning hole. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0024] The utility model provides a spray device in a milling machine, such as Figure 1-4As shown, it includes a drill bit 1, a first pipe 2, an adapter assembly 3, an end cover 4, an end cover 5, a water inlet pipe 6 and a pressure detector 7; the adapter assembly 3 includes an adapter seat 31, a second pipe 32, a first seal 33, a second seal 34 and a bearing assembly 35; one end of the second pipe 32 is arranged inside the adapter seat 31, and the other end of the second pipe 32 extends out of the end cover 4 and is connected to one end of the first pipe 2, and the other end of the first pipe 2 is connected to the drill bit 1; the first seal 33 and the second seal are arranged between the adapter seat 31 and the second pipe 32 34, a first cavity 392 is provided between the first sealing member 33 and the second sealing member 34; the end cover 4 is provided on the outer side of the second pipe 32 and is connected to the end cover 5; the adapter seat 31 is provided with a detection hole, which is close to the first cavity 392; the pressure detector 7 is connected to the outer side of the adapter seat 31 and is close to the detection hole; a bearing assembly 35 is provided between the end cover 4 and the second pipe 32; the input end of the water inlet pipe 6 passes through the end cover 4 and is connected to the external water source, and the output end of the water inlet pipe 6 is connected to the outer side of the adapter seat 31; the drill bit 1 is provided with a plurality of drainage holes.
[0025] Exemplarily, an external water source enters the interior of the adapter 31 through the water inlet pipe 6, and the water inside the adapter 31 can be transmitted to the first pipe 2 through the second pipe 32, and finally transported to the drill bit 1 through the first pipe 2; the first seal 33 and the second seal 34 can seal the adapter 31 and the second water pipe to prevent water from leaking into the interior of the equipment and causing damage to the internal parts of the equipment; the air pressure at the first cavity 392 can be monitored by the pressure detector 7. When the first seal 33 is damaged, causing water flow and air pressure leakage, the first cavity 392 is connected to the air pressure of the adapter 31. The pressure detector 7 detects that the air pressure here is abnormal, that is, the problem of damage to the first seal 33 can be discovered in time, thereby shutting down the machine for maintenance.
[0026] Exemplarily, the second pipe 32 can rotate around the end cover 4 through the bearing assembly 35. That is, the second pipe 32 and the first pipe 2 rotate together with the drill bit 1, so that cooling water is transported from the inside of the device during the operation of the drill bit 1, so that the drill bit 1 can achieve the effect of spray dust reduction.
[0027] In the present application embodiment, Figure 1-4 As shown, the adapter assembly 3 also includes a first scraper ring 36 and a second scraper ring 37; the first scraper ring 36 and the second scraper ring 37 are sequentially arranged between the adapter seat 31 and the second pipe 32 in the water flow direction, the first scraper ring 36 and the second scraper ring 37 are arranged in the first cavity 392, and the first scraper ring 36 abuts against the first sealing member 33.
[0028] Exemplarily, a water tank is arranged on the side close to the water inlet pipe 6, a liquid level gauge is arranged in the water tank, the liquid level gauge is electrically connected to the control system, and an alarm is arranged. When the water in the water tank is reduced to the alarm position set by the liquid level gauge, the control system controls the alarm to sound, which can remind the operator to add water to the water tank in time, thereby avoiding affecting the dust reduction effect of the internal spray device during the construction operation.
[0029] Illustratively, under the action of water pressure, the first scraper ring 36 and the upper scraper ring can both apply pressure to the inner hole of the adapter seat 31 in the radial direction, and can also cause the first scraper ring 36 and the second scraper ring 37 to be compressed and deformed, thereby forming a contact pre-tightening, achieving sealing between the adapter seat 31 and the second water pipe, and preventing leakage of the internal spray device, thereby improving the sealing performance of the internal spray device.
[0030] In the present application embodiment, Figure 1-4 As shown, the adapter assembly 3 further includes a third sealing member 38 ; a third sealing member 38 is also provided between the second pipe 32 and the end cover 4 .
[0031] Exemplarily, the third sealing member 38 can prevent water from entering the bearing assembly 35, thereby preventing damage to the bearing assembly 35 and improving the sealing performance of the internal spray device.
[0032] In the present application embodiment, Figure 1-4 As shown, the adapter assembly 3 also includes a first baffle 390 and a second baffle 391; the first baffle 390 is arranged on the outside of the second pipe 32, the first baffle 390 is connected to the side of the adapter seat 31 close to the first pipe 2, and the second seal 34 abuts against the first baffle 390; the second baffle 391 is arranged on the outside of the second pipe 32, the second baffle 391 is connected to the side of the end cover 4 away from the first pipe 2, and the third seal 38 abuts against the second baffle 391.
[0033] Illustratively, the first baffle 390 and the second baffle 391 can respectively prevent the second seal 34 and the third seal 38 from shifting during a long period of movement, thereby ensuring the normal operation of the second seal 34 and the third seal 38 and preventing leakage inside the internal spray device.
[0034] In the present application embodiment, Figure 1-4 As shown, the bearing assembly 35 includes a first bearing 351 and a second bearing 352 ; the first bearing 351 and the second bearing 352 are both arranged between the second pipe 32 and the end cover 4 ; the first bearing 351 abuts against the third sealing member 38 , and a cavity is arranged between the second bearing 352 and the first bearing 351 .
[0035] Exemplarily, the second pipe 32 can rotate around the end cover 4 through the first bearing 351 and the second bearing 352. That is, the second pipe 32 and the first pipe 2 rotate together with the drill bit 1, so that cooling water is transported from the inside of the device during the operation of the drill bit 1, so that the drill bit 1 can achieve the effect of spray dust reduction.
[0036] In the present application embodiment, Figure 1-4 As shown, it also includes an oil cup 8; the end cover 4 is provided with an oil injection hole 41, and the oil injection hole 41 includes a radial oil injection hole 411 and an axial oil injection hole 412; the input end of the axial oil injection hole 412 is connected to the oil cup 8, and the output end of the axial oil injection hole 412 is connected to the radial oil injection hole 411, and the radial oil injection hole 411 is connected to the second cavity 393;
[0037] Exemplarily, the oil filling hole 41 can provide lubricating oil to the first bearing 351 and the second bearing 352 to ensure the normal operation of the first bearing 351 and the second bearing 352 .
[0038] In the present application embodiment, Figure 1-4 As shown, it also includes a filter assembly 9; the filter assembly 9 includes a filter plate 91, an elastic member 92 and a sealing cone 93; the filter plate 91 is connected to the second pipe 32; one end of the elastic member 92 is connected to the filter plate 91, and the other end of the elastic member 92 is connected to the sealing cone 93; the sealing cone 93 can open or close the second pipe 32.
[0039] Exemplarily, the pressure detector 7 can monitor the air pressure at the cavity. When the first seal 33 is damaged and causes water flow and air pressure leakage, the first cavity 392 is connected to the air pressure of the adapter 31. The pressure detector 7 detects that the air pressure here is abnormal, that is, the problem of damage to the first seal 33 can be discovered in time, so that the machine is shut down for maintenance. At this time, there is no water flow in the second water pipe, and the dust and impurities in the tunnel can easily enter the second pipe 32 through the first pipe 2, thereby causing the inside of the transfer assembly 3 to be contaminated. Therefore, the present application sets a filter assembly 9 in the second pipe 32, wherein the filter plate 91 can filter the water flow during normal operation, and can also filter the dust and impurities in the tunnel when the equipment is repaired; further, the present application is also provided with an elastic member 92 and a sealing cone 93. When there is no leakage in the internal spray device, the water pressure in the second pipe 32 is normal, and the sealing cone 93 can be flushed to allow the water flow to pass normally. When there is no water flow, the sealing cone 93 can close the channel of the second pipe 32, thereby protecting the transfer assembly 3 from contamination.
[0040] In the present application embodiment, Figure 1-4 As shown, one end of the second pipe 32 away from the end cover 5 is provided with a thread; the thread can cooperate with the first pipe 2.
[0041] In the present application embodiment, Figure 1-4 As shown, a cleaning hole 10 is provided at one end of the second pipe 32 away from the end cover 5;
[0042] Exemplarily, the filter plate 91 can filter impurities and dust, and the impurities can be processed through the cleaning hole 10. The cleaning hole 10 is set at one end of the thread. During the normal operation of the first pipe 2 and the second pipe 32, the cleaning hole 10 is closed and the cleaning hole 10 is opened only when cleaning is needed.
[0043] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.
[0044] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.
Claims
1. A spray device in a milling machine, characterized in that: It comprises a drill bit (1), a first pipeline (2), a switching assembly (3), an end cover (4), an end shield (5), a water inlet pipe (6) and a pressure detector (7); The adapter assembly (3) comprises an adapter seat (31), a second pipe (32), a first sealing member (33), a second sealing member (34) and a bearing assembly (35); One end of the second pipe (32) is arranged inside the adapter (31), the other end of the second pipe (32) extends out of the end cover (4) and is connected to one end of the first pipe (2), and the other end of the first pipe (2) is connected to the drill bit (1); The first sealing member (33) and the second sealing member (34) are arranged between the adapter seat (31) and the second pipe (32), and a first cavity (392) is arranged between the first sealing member (33) and the second sealing member (34); The end cover (4) is arranged on the outside of the second pipe (32) and is connected to the end shield (5); The adapter (31) is provided with a detection hole, and the detection hole is close to the first cavity (392); The pressure detector (7) is connected to the outside of the adapter (31) and is close to the detection hole; The bearing assembly (35) is arranged between the end cover (4) and the second pipe (32); The input end of the water inlet pipe (6) passes through the end cover (4) and is connected to an external water source, and the output end of the water inlet pipe (6) is connected to the outside of the adapter (31); The drill bit (1) is provided with a plurality of drainage holes.
2. The spray device in the milling machine according to claim 1, characterized in that: The adapter assembly (3) further comprises a first scraping ring (36) and a second scraping ring (37); A first scraper ring (36) and a second scraper ring (37) are sequentially arranged between the adapter seat (31) and the second pipe (32) in the direction of water flow; the first scraper ring (36) and the second scraper ring (37) are arranged in the first cavity (392), and the first scraper ring (36) abuts against the first sealing member (33).
3. The spray device in the milling machine according to claim 1, characterized in that: The adapter assembly (3) further comprises a third sealing member (38); The third sealing member (38) is also provided between the second pipe (32) and the end cover (4).
4. The spray device in the milling machine according to claim 3, characterized in that: The adapter assembly (3) further comprises a first baffle (390) and a second baffle (391); The first baffle (390) is arranged on the outside of the second pipe (32), the first baffle (390) is connected to a side of the adapter (31) close to the first pipe (2), and the second sealing member (34) is in contact with the first baffle (390); The second baffle (391) is arranged on the outside of the second pipe (32), the second baffle (391) is connected to a side of the end cover (4) away from the first pipe (2), and the third sealing member (38) is in contact with the second baffle (391).
5. The spray device in the milling machine according to claim 3, characterized in that: The bearing assembly (35) comprises a first bearing (351) and a second bearing (352); The first bearing (351) and the second bearing (352) are both arranged between the second pipe (32) and the end cover (4); The first bearing (351) is in contact with the third sealing member (38), and a second cavity (393) is provided between the second bearing (352) and the first bearing (351).
6. The spray device in the milling machine according to claim 5, characterized in that: Also includes an oil cup (8); The end cover (4) is provided with an oil injection hole (41), and the oil injection hole (41) includes a radial oil injection hole (411) and an axial oil injection hole (412); The input end of the axial oil injection hole (412) is connected to the oil cup (8), the output end of the axial oil injection hole (412) is in communication with the radial oil injection hole (411), and the radial oil injection hole (411) is in communication with the second cavity (393).
7. The spray device in the milling machine according to claim 1, characterized in that: Also includes a filter assembly (9); The filter assembly (9) comprises a filter plate (91), an elastic member (92) and a sealing cone (93); The filter plate (91) is connected to the second pipe (32); One end of the elastic member (92) is connected to the filter plate (91), and the other end of the elastic member (92) is connected to the sealing cone (93); the sealing cone (93) can open or close the second pipe (32).
8. The spray device in the milling machine according to claim 1, characterized in that: The end of the second pipe (32) away from the end cover (5) is provided with a thread; the thread can cooperate with the first pipe (2).
9. The spray device in the milling machine according to claim 1, characterized in that: A cleaning hole (10) is provided at one end of the second pipe (32) away from the end cover (5).