Special sealing leakage-proof connecting piece for coal mining equipment

Abstract

The utility model provides a special sealing leakproof connecting piece for coal mining equipment, which relates to the technical field of connecting pieces and comprises two connecting flanges, one side of the outer wall of each connecting flange is provided with a group of connecting holes, connecting bolts are movably inserted between the inner surface walls of the two groups of connecting holes, and the outer surface walls of the group of connecting bolts are in threaded connection with main nuts. And one side of the outer wall of each main nut is fixedly connected with a pressing ring, and the outer surface wall of each connecting bolt is movably sleeved with a main metal gasket. According to the utility model, under the interaction of all the components of the device, a group of main nuts can additionally obtain a stable fixing effect on the basis of the original thread fastening force, so that the bolts can be prevented from being gradually loosened under the influence of long-term vibration, the pretightening force is ensured to be always kept stable, the sealing part of the connecting piece is prevented from generating gaps, and the service life of the connecting piece is prolonged. Therefore, medium leakage is effectively prevented, and normal operation and use safety of equipment are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting piece technical field especially relates to a kind of special sealing leakproof connecting piece of coal mining equipment. BACKGROUND

[0002] Coal mining equipment refers to a series of machinery and electrical equipment for completing coal excavation, transportation, support and other related operations in the process of coal mining, including coal mining machine, scraper conveyor, hydraulic support etc.

[0003] Coal mining equipment needs connecting piece to reliably connect its numerous pipelines and components in complex and harsh underground operating environment, to ensure stable operation of equipment and system sealing, and special sealing leakproof connecting piece of coal mining equipment uses multiple sealing washers, sealing glue filling and special structure design to effectively prevent medium leakage and maintain normal operation of equipment under high dust, high humidity and other working conditions.

[0004] However, the existing special sealing leakproof connecting piece of coal mining equipment has the following shortcomings:

[0005] In the prior art, coal mining equipment usually generates a large amount of vibration due to complex geological conditions underground and its own operating characteristics, and the special sealing leakproof connecting piece of coal mining equipment is usually connected and fixed by bolts, which will gradually loosen in long-term vibration, resulting in a decrease in pre-tightening force, and eventually causing a gap in the sealing part of the connecting piece, leading to medium leakage and affecting normal operation and safety of the equipment.

[0006] Therefore, we propose a special sealing leakproof connecting piece of coal mining equipment to solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims to provide a special sealing leakproof connecting piece of coal mining equipment, which uses the rotating function of the rotating assembly to accurately align the positions of the fixed plate and the fixed seat, and then firmly fixes the fixed plate by means of the threaded connection of the bolt assembly, to solve the problems in the above background technology.

[0008] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of special sealing leakproof connecting piece of coal mining equipment, including two connecting flanges, a group of connecting holes are set in the outer wall side of two connecting flanges, connecting bolt is movably inserted between the inner surface wall of two groups of connecting holes, the outer surface wall of a group of connecting bolts is all threadedly connected with main nut, the outer wall side of a group of main nuts is all fixedly connected with compression ring, the outer surface wall of a group of connecting bolts is movably sleeved with main metal gasket, the outer surface wall of a group of compression rings is all set with circular slide groove, the inner surface wall of a group of circular slide grooves is all slidably embedded with circular slide block, the outer surface wall of a group of circular slide blocks is all fixedly connected with fixed plate, the outer wall side of one of two connecting flanges is fixedly connected with a group of fixed seats, the outer surface wall of a group of fixed seats is movably sleeved with rotating block, the outer wall side of a group of rotating blocks is all fixedly connected with connecting screw rod.

[0009] Preferably, the outer surface wall of a group of connecting screw rods is all threadedly connected with auxiliary nut, and the outer surface wall of a group of connecting screw rods is movably sleeved with auxiliary metal gasket.

[0010] Preferably, the outer wall side of one of two connecting flanges is set with two embedding grooves, and the outer wall side of the other one of two connecting flanges is fixedly connected with two embedding blocks, and the outer surface wall of two embedding blocks is movably inserted in the inside of two embedding grooves.

[0011] Preferably, the outer surface wall of two embedding blocks is all set with limiting slot, and the outer surface wall of one of two connecting flanges is set with two mounting grooves.

[0012] Preferably, the inner surface wall of two mounting grooves is all fixedly connected with reset spring.

[0013] Preferably, the outer surface wall of two reset springs is all fixedly connected with limiting block, and the outer surface wall of two limiting blocks is movably inserted in the inside of two limiting grooves.

[0014] Preferably, the outer surface wall of two limiting blocks is all set with pull slot.

[0015] Compared with prior art, the utility model has the advantages and positive effects that,

[0016] 1. In the utility model, through the interaction of each component of the device, the rotation function of the rotating assembly can make the position of the fixed plate and the fixed seat accurate alignment, then, with the threaded connection of bolt assembly, the fixed plate is firmly fixed, through this way, a group of main nuts can obtain a layer of stable fixing effect on the basis of the original thread fastening force, which can prevent the bolt from gradually loosening under the influence of long-term vibration, ensure that the pre-tightening force always remains stable, avoid the sealing part of the connecting piece from appearing gap, and effectively prevent medium leakage, ensure the normal operation and use safety of the equipment.

[0017] 2. In the utility model, through the interaction of each component of the device, the quick fixing of the elastic fixing assembly can quickly realize the connection of the two connecting flanges, and then the position of the connecting hole can be accurately aligned, thereby greatly facilitating the user to twist the bolt assembly, making the installation process of the connecting piece more efficient and convenient, and improving the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A front view structural perspective view of a special sealing leak-proof connecting piece of coal mining equipment is proposed for the utility model;

[0019] Figure 2 A partial structure perspective split view of a special sealing leak-proof connecting piece of coal mining equipment is proposed for the utility model;

[0020] Figure 3 A partial structure side view perspective split view of a special sealing leak-proof connecting piece of coal mining equipment is proposed for the utility model;

[0021] Figure 4 A partial structure cross-sectional perspective split view of a special sealing leak-proof connecting piece of coal mining equipment is proposed for the utility model.

[0022] Legend: 1, connecting flange; 2, connecting hole; 3, connecting bolt; 4, main nut; 5, compression ring; 6, main metal gasket; 7, circular sliding groove; 8, circular sliding block; 9, fixed plate; 10, fixed seat; 11, rotating block; 12, connecting screw; 13, secondary nut; 14, secondary metal gasket; 15, embedded groove; 16, embedded block; 17, limiting groove; 18, mounting groove; 19, return spring; 20, limiting block; 21, pull groove. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the utility model more clearly understood, the utility model will be further described below in combination with the drawings and examples. It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as shown in the attached document Figure 1 -Appendix Figure 4 As shown, this utility model provides a technical solution: a special sealing and leak-proof connector for coal mining equipment, including two connecting flanges 1. Each of the outer walls of the two connecting flanges 1 has a set of connecting holes 2. Connecting bolts 3 are movably inserted between the inner surfaces of the two sets of connecting holes 2. A main nut 4 is threaded onto the outer surface of each set of connecting bolts 3. A clamping ring 5 is fixedly connected to one side of the outer surface of each set of main nuts 4. A main metal washer 6 is movably fitted onto the outer surface of each set of connecting bolts 3. A circular sliding groove is formed on the outer surface of each set of clamping rings 5. The inner surface of the groove 7 is slidably fitted with a circular slider 8. The outer surface of the circular slider 8 is fixedly connected with a fixing plate 9. One of the two connecting flanges 1 is fixedly connected to one side of its outer wall with a fixing seat 10. The outer surface of the fixing seat 10 is movably fitted with a rotating block 11. The outer surface of the rotating block 11 is fixedly connected with a connecting screw 12. The outer surface of the connecting screw 12 is threaded with a secondary nut 13. The outer surface of the connecting screw 12 is movably fitted with a secondary metal washer 14.

[0026] The effect achieved by the entire embodiment 1 is as follows: During use, firstly, the two connecting flanges 1 are tightly connected by the threaded engagement of a set of main nuts 4 and a set of connecting bolts 3. Then, according to the position of the corresponding fixed seat 10, the fixed plate 9 is rotated. Since the circular groove 7 and the circular slider 8 can slide together, the position of the fixed plate 9 can be flexibly adjusted to make it precisely aligned with the corresponding fixed seat 10. At this time, the rotating block 11 is rotated, and the rotating block 11 drives the connecting screw 12 to be screwed into the mounting hole at the top of the fixed plate 9. Then, the secondary nut 13 is tightened to make it engage with the secondary metal pad. The plate 14 works in concert to apply downward pressure to the fixing plate 9, ensuring that the fixing plate 9 is stable and immovable. The fixing effect of the fixing plate 9, in turn, keeps the corresponding main nut 4 stationary. This adds an extra fixing effect to the main nut 4 on top of the original thread tightening force. This effectively prevents the main nut 4 from loosening due to external forces such as vibration and impact. Through this secondary thread fixing method, friction is increased from multiple aspects and the rotation of the nut is restricted, which greatly improves the anti-loosening performance of the main nut 4 and ensures that the connecting parts remain tight under long-term harsh working conditions, maintaining a good sealing and leak-proof effect.

[0027] Example 2, as Figures 2-4As shown, the outer wall of one of the two connecting flanges 1 is provided with two embedded grooves 15 on one side, and the outer wall of the other of the two connecting flanges 1 is fixedly connected with two embedded blocks 16, and the outer wall of the two embedded blocks 16 is movably inserted into the two embedded grooves 15, the outer wall of the two embedded blocks 16 is provided with a limiting groove 17, the outer wall of one of the two connecting flanges 1 is provided with two mounting grooves 18, the inner wall of the two mounting grooves 18 is fixedly connected with a reset spring 19, the outer wall of the two reset springs 19 is fixedly connected with a limiting block 20, and the outer wall of the two limiting blocks 20 is movably inserted into the two limiting grooves 17, and the outer wall of the two limiting blocks 20 is provided with a pulling groove 21.

[0028] The effect achieved by the whole embodiment 2 is that when the two connecting flanges 1 need to be connected, first, force is applied through the two pulling grooves 21 to pull the two limiting blocks 20 out of the corresponding embedded grooves 15, in this process, the movement of the two limiting blocks 20 will stretch the two reset springs 19, causing elastic deformation and storing elastic potential energy, then, the two embedded blocks 16 on one side of the outer wall of one of the connecting flanges 1 are precisely inserted into the corresponding embedded grooves 15, at this time, the restoring force generated by the release of elastic potential energy of the two reset springs 19 can make the two limiting blocks 20 quickly snap into the corresponding limiting grooves 17, thereby forming a stable mortise and tenon connection between the two connecting flanges 1, through this way, the preliminary connection of the two connecting flanges 1 is realized, ensuring that the positions of the two groups of connecting holes 2 can be accurately aligned when the bolt connection is performed subsequently, which avoids the tedious operation of manually adjusting the position of the connecting hole 2 in the traditional installation process, greatly facilitates the user to tighten the bolt assembly, makes the installation process of the connecting piece more efficient and convenient, thereby significantly improves the installation efficiency and reduces the installation difficulty.

[0029] The working principle of the whole device is as follows: in use, first, connect the two connecting flanges 1 with the pipelines to be connected respectively, when the pipelines are connected, first pull the two limiting blocks 20 through the pull grooves 21, so that the limiting blocks 20 are separated from the corresponding embedding grooves 15, in this process, the movement of the limiting blocks 20 stretches the reset springs 19, so that the reset springs 19 are elastically deformed, then, insert the embedding blocks 16 on one side of the outer wall of one connecting flange 1 into the corresponding embedding grooves 15, and by the elastic restoring force of the reset springs 19, the limiting blocks 20 are clamped into the limiting grooves 17, so that the two connecting flanges 1 form a stable mortise and tenon connection, at this time, the two groups of connecting holes 2 are accurately aligned, then, pass one group of main nuts 4 through the two groups of connecting holes 2, and respectively screw one group of connecting bolts 3, so that one group of compression rings 5 exerts a compression force on one group of main metal gaskets 6, so as to tightly adhere the two connecting flanges 1, then, rotate the fixing plate 9 according to the position of the fixing seat 10, adjust the position of the fixing plate 9 by the sliding cooperation of the circular sliding groove 7 and the circular sliding block 8, so that the fixing plate 9 is aligned with the corresponding fixing seat 10, and by rotating the rotating block 11, the connecting screw 12 is rotated into the mounting hole at the top of the fixing plate 9, at this time, the worker screws the secondary nut 13, so that the secondary nut 13 exerts a compression force on the fixing plate 9 with the secondary metal gasket 14, so that the fixing plate 9 remains stable, after the fixing plate 9 is fixed, it keeps the corresponding main nut 4 fixed through the circular sliding block 8 and the compression ring 5, so that the main nut 4 has an additional layer of fixation on the basis of the original thread fastening force, effectively preventing it from loosening due to external forces such as vibration and impact.

[0030] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A special sealing leak-proof connector for coal mining equipment, characterized in that: The utility model relates to a connecting flange, including two connecting flanges (1), a group of connecting holes (2) are seted up to the outer wall side of two connecting flanges (1), connecting bolts (3) are movably inserted between the inner surface wall of two connecting holes (2), the outer surface wall of a group of connecting bolts (3) is all connected with main nut (4) in screw thread, the outer wall side of a group of main nut (4) is all connected with compression ring (5) fixedly, the outer surface wall of a group of connecting bolts (3) is movably sleeved with main metal gasket (6), the outer surface wall of a group of compression ring (5) is all seted up with circular slide groove (7), the inner surface wall of a group of circular slide groove (7) is all slidably embedded with circular slide block (8), the outer surface wall of a group of circular slide block (8) is all connected with fixed plate (9) fixedly, the outer wall side of one of two connecting flanges (1) is fixedly connected with a group of fixed seat (10), the outer surface wall of a group of fixed seat (10) is movably sleeved with rotating block (11), the outer wall side of a group of rotating block (11) is all connected with connecting screw rod (12) fixedly.

2. The special sealing leakproof connector of coal mining equipment according to claim 1, characterized in that: The outer surface wall of a group of connecting screw rod (12) is all connected with vice nut (13) in screw thread, and the outer surface wall of a group of connecting screw rod (12) is movably sleeved with vice metal gasket (14).

3. The special sealing leakproof connector of coal mining equipment according to claim 2, characterized in that: The outer wall side of one of two connecting flanges (1) is seted up with two embedding grooves (15), and the outer wall side of the other of two connecting flanges (1) is fixedly connected with two embedding blocks (16), and the outer surface wall of two embedding blocks (16) is movably inserted in the inside of two embedding grooves (15).

4. The special sealing leakproof connector of coal mining equipment according to claim 3, characterized in that: The outer surface wall of two embedding blocks (16) is all seted up with limiting slot (17), and the outer wall of one of two connecting flanges (1) is seted up with two installation grooves (18).

5. The special sealing leakproof connector of coal mining equipment according to claim 4, characterized in that: The inner surface wall of two installation grooves (18) is all fixedly connected with reset spring (19).

6. The special sealing leakproof connector of coal mining equipment according to claim 5, characterized in that: The outer surface wall of two reset springs (19) is all fixedly connected with limiting block (20), and the outer surface wall of two limiting blocks (20) is movably inserted in the inside of two limiting slots (17).

7. The special sealing leakproof connector of coal mining equipment according to claim 6, characterized in that: The outer surface wall of two limiting blocks (20) is all seted up with pull slot (21).

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