Coal cutter water cleaning device and connecting assembly thereof
By designing the coal miner clean water device and its connecting components, using V-shaped groove structure, external thread and internal thread design, the problem of water freezing of coal miner water spray equipment in low temperature environments is solved, and the rapid connection between high-pressure water pipe joints and air duct joints is realized, reducing production costs and labor costs and improving work efficiency.
Patent Information
- Application Number
- CN202420794868.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The existing coal mining machine water spray equipment is prone to freezing water in low temperature environments, causing equipment damage, and the existing high-pressure water pipe joints and air pipe joints cannot be directly connected, resulting in complex connections and high cost.
It provides a coal mining machine clean water device and its connecting components, including air duct joints, first joints, hose assembly and second joints. Through the design of V-shaped groove structure, external threads and internal threads, bayonet pins, etc., the fast connection between high-pressure water pipe joints and air duct joints is realized.
It realizes rapid cleaning of water in the water spraying equipment of coal mining machines, reduces production costs and labor costs, simplifies the connection process, and improves work efficiency.
Smart Images
Figure CN223019721U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary equipment for coal shearers, in particular to a water cleaning device for a coal shearer and its connecting components. Background Art
[0002] During coal mining operations, coal shearers need to perform water spraying operations through the water spraying equipment carried thereon to reduce dust generation. Therefore, after the coal shearer is assembled, a water spraying test needs to be carried out on the water spraying equipment. After the test, the water in the coal shearer water spraying equipment needs to be cleaned out. Because, if the water remaining in the coal shearer water spraying equipment is not cleaned out, once the temperature drops below 0°C, the water will freeze and cause serious damage to the coal shearer water spraying equipment, such as bulging and cracking; and if not discovered in time, the damaged product will leak water during use, resulting in electrical failures and posing a major safety hazard to the use of the coal shearer.
[0003] In order to completely clean out the water in the coal shearer water spraying equipment after the water spraying test of the coal shearer, manufacturers usually use the high-pressure air in the factory building as the power source according to the on-site conditions, and connect the air duct to the high-pressure water pipe joint of the coal shearer water spraying equipment to completely remove the water remaining in the product water channel. However, the high-pressure water pipe joint in the prior art is usually a male joint, which is a standard pipe fitting, while the air duct joint needs to press the steel ball into the V-shaped groove of the joint it is connected to through its outer sleeve to be connected as a whole. Therefore, the high-pressure water pipe joint and the air duct joint cannot be directly connected. In order to connect the two, manufacturers usually design and manufacture special connecting joints according to the model of the coal shearer high-pressure water pipe joint, which will be a complex process: first, the drawing design of the joint is carried out. After the design drawing is completed, the design drawing needs to be produced. The production department arranges the plan for production according to the drawing. Among them, the drawing design requires professional designers, and the production of products requires skilled workers. From the procurement of raw materials to the arrangement of machining processes, the whole process is complex, labor-consuming, time-consuming and laborious, greatly increasing the labor cost and production cycle. Summary of the Invention
[0004] The purpose of the utility model is to solve the above problems, and provide a water cleaning device for a coal shearer and its connecting components, which have low production cost, are convenient and fast to use, can quickly connect the high-pressure water pipe joint and the high-pressure air duct joint together, and improve work efficiency.
[0005] To achieve the above object of the present utility model, on the one hand, the present utility model provides a connection assembly for a shearer water cleaning device, comprising: an air duct joint for detachably connecting with an air source generator; a first joint for detachably connecting with the air duct joint; a hose assembly for detachably connecting with a structure to be cleaned by water of the shearer; a second joint for detachably connecting with the joint of the high-pressure hose assembly; wherein, the first joint and the second joint are detachably connected.
[0006] Preferably, one end of the first joint is provided with a V-shaped groove structure for quickly connecting with the air duct joint, and the other end is provided with an external thread.
[0007] Preferably, one end of the second joint for connecting with the first joint is provided with an internal thread adapted to the external thread.
[0008] Preferably, the joint of the hose assembly and the other end of the second joint are connected by a bayonet pin.
[0009] Preferably, the bayonet pin is a U-shaped bayonet pin.
[0010] Preferably, the other end of the second joint is provided with two pairs of through holes, and each protruding arm of the U-shaped bayonet pin passes through a corresponding pair of through holes.
[0011] Preferably, the first joint adopts a PM joint, and the second joint adopts a high-pressure water pipe joint with the internal thread.
[0012] In addition, the present utility model also provides a shearer water cleaning device, which comprises the connection assembly of the shearer water cleaning device as described above.
[0013] Compared with the prior art, the water cleaning device for a shearer of the present utility model has the advantages of simple structure, convenient and fast use, low production cost, capable of quickly connecting the joint of the high-pressure hose assembly and the high-pressure air duct joint together, and improving work efficiency.
[0014] The present utility model will be described in detail below with reference to the accompanying drawings. Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of the shearer water cleaning device of the present utility model;
[0016] Figure 2 is a partial enlarged schematic diagram of the connection assembly of the shearer water cleaning device of the present utility model;
[0017] Figure 3 is a first schematic structural diagram of the first joint of the present utility model;
[0018] Figure 4 is a second schematic structural diagram of the first joint of the present utility model;
[0019] Figure 5 is a perspective view of the second joint of the present utility model;
[0020] Figure 6 is a schematic structural view of the assembled first joint and second joint of the present utility model. Specific embodiments
[0021] As Figure 1 、 Figure 2 shown, they are respectively a schematic structural view of the water cleaning device of the shearer of the present utility model and a partially enlarged schematic view of the connection assembly. It can be seen from the figure that the water cleaning device of the shearer of the present utility model includes an air source generator 1 for providing high-pressure gas, a structure 8 to be cleaned with water of the shearer, and a connection assembly for connecting the air source generator 1 and the structure 8 to be cleaned with water of the shearer. Among them, the connection assembly of the water cleaning device of the shearer of the present utility model includes: an air duct joint 3 detachably connected to the air outlet of the air source generator 1 through a hose 2; a first joint 4 detachably connected to the air duct joint; a rubber hose assembly 6 detachably connected to the structure to be cleaned with water of the shearer, which is threadedly connected to the structure to be cleaned with water of the shearer through a female joint 7 (threadedly connecting the rubber hose assembly and the structure to be cleaned with water of the shearer through the female joint adopts a joint in the prior art); a second joint 5 detachably connected to the joint of the high-pressure rubber hose assembly; wherein, the first joint and the second joint are detachably connected.
[0022] Among them, as Figure 5 shown, one end of the first joint of the present utility model is provided with a V-shaped groove structure 41 for quickly connecting to the air duct joint, and the outer wall of the other end is provided with an external thread 43. A retaining platform 42 for limiting when connecting the air duct joint is arranged between the V-shaped groove structure 41 and the external thread 43. The outer diameter of the retaining platform is greater than the diameter of the other end of the first joint provided with the external thread, and the diameter of the part of the first joint provided with the V-shaped groove structure is smaller than the diameter of the part of the first joint provided with the external thread. During application, the air duct joint adopts a standard air duct joint, and the first joint adopts a standard PM pipe joint in the prior art for adapting to the standard air duct joint. The standard PM pipe joint is easy to purchase and has a low price.
[0023] And as Figure 3 、 Figure 4 shown, the second joint is used for respectively and detachably connecting to the first joint and the joint of the high-pressure rubber hose assembly. During design, one end 53 of the second joint for connecting to the first joint is provided with an internal thread adapted to the external thread (the internal thread is not shown in the figure due to the angle relationship), and the other end 51 is provided with two pairs of through holes 52. The other end of the second joint is connected to the joint of the rubber hose assembly through a bayonet pin 9. Among them, the bayonet pin adopts a U-shaped bayonet pin, and each protruding arm thereof passes through a corresponding pair of through holes (as Figure 2 shown).
[0024] During application, the second joint can be modified from a standard high-pressure water pipe joint in the prior art: according to the size of the inner hole of the end with external threads (as shown in Figure 3 ), and the specifications of the external threads of the standard air duct joint, internally threaded portions adapted thereto are machined on the inner hole of the high-pressure water pipe joint, such as any one of PT1 / 8″, PT1 / 4″, PT3 / 8″, PT1 / 2″, and PT1″. For aesthetic purposes, the external threads of the existing high-pressure water pipe joint can also be turned off (as shown in Figure 4 ). Since the PT thread is a sealing thread, the machined high-pressure water pipe joint can be tightened with the corresponding PT external thread product purchased (as shown in Figure 6 ). The high-pressure water pipe joint uses an off-the-shelf standard part, which is inexpensive.
[0025] The utility model adopts a standard part PM pipe joint and an off-the-shelf standard high-pressure water pipe joint, and internally threaded portions are machined on the high-pressure water pipe joint. Compared with the prior art that requires designing drawings of the connection joint, purchasing raw materials, and arranging machining processes, the production cost and labor cost are reduced, and the connection is convenient and fast. Especially when the models of the standard air duct joints are different, compared with the prior art that requires designing and manufacturing connection joints of different models, the connection assembly of the utility model greatly reduces the production cost.
[0026] Although the above has described the utility model in detail, the utility model is not limited thereto. Those skilled in the art of this technology can make modifications according to the principle of the utility model. Therefore, all modifications made according to the principle of the utility model should be understood to fall within the protection scope of the utility model.
Claims
1. A connection assembly for a coal mining machine water cleaning device, characterized in that: include: An air duct connector for detachable connection with an air source generator; A first joint for detachably connecting to an air duct joint; A hose assembly for detachable connection with a water-clearing structure of a coal mining machine; A second joint for detachably connecting to a joint of the high-pressure hose assembly; Wherein, the first connector and the second connector are detachably connected.
2. The coal mining machine water cleaning device connection assembly according to claim 1, characterized in that: One end of the first joint is provided with a V-shaped groove structure for quick connection with the air duct joint, and the other end is provided with an external thread.
3. The coal mining machine water cleaning device connection assembly according to claim 2, characterized in that: One end of the second joint used for connecting with the first joint is provided with an internal thread matched with the external thread.
4. The coal mining machine water cleaning device connection assembly according to claim 3, characterized in that: The joint of the hose assembly is connected to the other end of the second joint through a bayonet pin.
5. The connection assembly of the coal mining machine water cleaning device according to claim 4, characterized in that: The bayonet pin is a U-shaped bayonet pin.
6. The coal mining machine water cleaning device connection assembly according to claim 5, characterized in that: The other end of the second joint is provided with two pairs of through holes, and each extending arm of the U-shaped bayonet pin passes through a corresponding pair of through holes.
7. The connection assembly of the coal mining machine water cleaning device according to claim 6, characterized in that: The first joint adopts a PM joint, and the second joint adopts a high-pressure water pipe joint with the internal thread.
8. A water cleaning device for a coal mining machine, characterized in that: It comprises a coal mining machine water cleaning device connecting assembly as described in any one of claims 1-7.