Dynamic seal for vibrating equipment

Abstract

The present invention discloses a dynamic seal for a vibrating device, which relates to the technical field of vibrating devices. The dynamic seal for the vibrating device includes a base. A second installation groove is formed at the top of the base, and the cross-section of the second installation groove is a combined shape of a circle and a rectangle. A first installation groove communicating with the inside of the second installation groove is formed at the top of the base. A pressure-bearing seal cover is arranged on the top of the base, and the pressure-bearing seal cover is fixed to the top of the base by bolts. The top of the vibrating device penetrates through the inside of the pressure-bearing seal cover and extends to the outside of the pressure-bearing seal cover. For this dynamic seal for the vibrating device, through the actions of the spring, the tension spring and the damping sleeve, the vibration impact force is reduced multiple times. At the same time, through the reasonable distribution of the spring, the tension spring and the damping sleeve, the mechanical properties and the stability effect of the device are increased, the buffer force becomes larger, and the impact force is reduced to the maximum extent, thereby eliminating the vibration of the pressure-bearing seal cover and extending the service life of the device to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration equipment, and particularly to dynamic seals for vibration equipment. Background Art

[0002] Vibration equipment plays a crucial role in industries such as steel, coal, coal chemical industry, electric power, and coke. Through vibrating screens, materials can be separated and screened to select the appropriate material size for their own technological processes.

[0003] During the operation of vibration equipment, materials are prone to spillage. When the materials spill around the vibration equipment and enter the interior of the vibration equipment, it is easy to cause damage to the vibration equipment. Therefore, when some current vibration equipment is in use, a leather sleeve is often fixed between the vibration equipment and the base to seal the vibration equipment.

[0004] However, during the operation of some current vibration equipment, it generally involves near-linear motion in multiple directions and needs to pass through the resonance zone during startup and shutdown. When passing through the resonance zone, the amplitude in each direction is 3 - 5 times the amplitude in the working state. Since some current existing seals are directly fixed, vibration is likely to damage the seals, making the existing seals unable to adapt and reducing the service life of the seals. Summary of the Invention

[0005] An object of the present invention is to solve at least one of the technical problems existing in the prior art, and provide a dynamic seal for vibration equipment, which can solve the problem that when the vibration equipment passes through the resonance zone, the amplitude in each direction is 3 - 5 times the amplitude in the working state, making vibration likely to damage the seal.

[0006] To achieve the above object, the present invention provides the following technical solution: A dynamic seal for vibration equipment, including a base. A second installation groove is opened at the top of the base, and the cross-section of the second installation groove is a combination of a circle and a rectangle. A first installation groove communicating with the interior of the second installation groove is opened at the top of the base. A pressure-bearing seal cover is arranged on the top of the base, and the pressure-bearing seal cover is fixed to the top of the base by bolts. The top of the vibration equipment penetrates through the interior of the pressure-bearing seal cover and extends to the outside of the pressure-bearing seal cover. An elastic mesh layer is arranged on the top of the pressure-bearing seal cover, and the elastic mesh layer covers the top of the vibration equipment. A multiple vibration mitigation device is arranged inside the first installation groove, and a U-shaped seal ring is arranged on the top of the base, and the U-shaped seal ring is located between the base and the pressure-bearing seal cover.

[0007] Preferably, a pressure-bearing block and a pressure-reducing block are fixedly connected to the upper surface inside the pressure-bearing seal cover. The cross-section of the pressure-reducing block is triangular. A pressure-bearing ring is arranged on the top of the base, and a seal ring is arranged between the second installation groove and the pressure-bearing seal cover.

[0008] Preferably, the multiple vibration reduction device includes a vibration damping sleeve. The bottom of the vibration damping sleeve is fixedly connected to the inner wall of the first installation groove. The cross-section of the vibration damping sleeve is arc-shaped. Two sliding grooves are provided on the lower surface inside the first installation groove. The two sliding grooves form a group. A support rod is slidably connected to the inside of each of the two sliding grooves. The tops of the two support rods are fixedly connected to a support plate. The top of the support plate is in contact with the inner wall of the vibration damping sleeve. A spring is fixedly connected to the bottom of the support rod. The end of the spring away from the support rod is fixedly connected to the inner wall of the sliding groove.

[0009] Preferably, moving grooves are provided on the opposite sides of the two support rods. A first slider extending outside the moving groove is slidably connected to the inside of each of the two moving grooves. A support shaft is fixedly connected between the two first sliders.

[0010] Preferably, a fixing block is fixedly connected to the surface of the support shaft. A first transmission rod and a second transmission rod are respectively rotatably connected to the left and right sides of the fixing block. The rotation points of the first transmission rod and the second transmission rod are on the same straight line.

[0011] Preferably, second sliders are rotatably connected to the top and bottom of the first transmission rod and the second transmission rod. A tension spring is fixedly connected between the two second sliders provided at the top of the first transmission rod and the second transmission rod.

[0012] Preferably, two symmetrical positioning blocks are fixedly connected to the bottom of the pressure-bearing sealing cover. A positioning groove for sliding connection with the surface of the positioning block is provided on the inner wall of the first installation groove.

[0013] Preferably, rollers are provided on the front and rear sides of the positioning block.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1). For the dynamic seal of this vibration device, through the actions of the spring, the tension spring and the vibration damping sleeve, the vibration impact force is reduced multiple times. At the same time, through the reasonable distribution of the spring, the tension spring and the vibration damping sleeve, the mechanical properties and the stability effect of the device are increased, the buffer force becomes larger, and the impact force is reduced to the maximum, thereby eliminating the vibration of the pressure-bearing sealing cover and extending the service life of the device to a certain extent.

[0016] (2). For the dynamic seal of this vibration device, through the inclined surface of the adjustable pressure-bearing ring, the main function of the inclined surface of the pressure-bearing ring is to form sufficient lateral pressure to reduce the phenomenon of material compaction caused by the positive pressure. The angle setting of the inclined surface of the pressure relief block needs to be used in cooperation with the adjustable pressure-bearing sealing cover to jointly ensure that the material is not compacted and can withstand the positive pressure of the material under heavy load, so that the staff can use the device more conveniently.

[0017] (3) The dynamic seal for the vibrating device can, to a certain extent, reduce the situation where materials enter the inside of the first installation groove through the gap between the vibrating device and the pressure-bearing seal cover during the vibration process, damaging the internal structure of the device, thereby providing a certain degree of protection for the device and extending its service life to a certain extent, making it more convenient for the staff to use the device by covering the side of the top of the vibrating device with an elastic mesh layer.

[0018] (4) The dynamic seal for the vibrating device reduces the friction between the positioning block and the positioning groove by rolling the roller between the positioning block and the positioning groove, changing the sliding friction between the positioning block and the positioning groove into rolling friction, so that the positioning block can move more smoothly inside the positioning groove. Through the mutual cooperation of the positioning block and the positioning groove, the pressure-bearing seal cover can be positioned and installed more smoothly, making it more convenient for the staff to use the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings and embodiments:

[0020] Figure 1 It is a schematic structural diagram of the dynamic seal for the vibrating device of the present invention;

[0021] Figure 2 It is a schematic diagram of the base of the present invention;

[0022] Figure 3 It is a schematic diagram of the pressure-bearing block of the present invention;

[0023] Figure 4 It is a schematic diagram of the pressure-reducing block of the present invention;

[0024] Figure 5 It is a left-view plane schematic diagram of the vibration damping sleeve of the present invention;

[0025] Figure 6 It is a left-view plane schematic diagram of the positioning block of the present invention.

[0026] Reference numerals: 1. Base; 2. Pressure-bearing seal cover; 3. Elastic mesh layer; 4. Positioning block; 5. First installation groove; 6. Positioning groove; 7. Second installation groove; 8. Vibration damping sleeve; 9. Pressure-bearing block; 10. Pressure-reducing block; 11. Roller; 12. Chute; 13. Spring; 14. Support rod; 15. Moving groove; 16. Support shaft; 17. First slider; 18. Tension spring; 19. Second slider; 20. First transmission rod; 21. Fixed block; 22. Support plate; 23. Second transmission rod; 24. Pressure-bearing ring; 25. Sealing ring; 26. U-shaped sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Please refer to Figure 1-3, the present invention provides a technical solution: a dynamic seal for a vibrating device, including a base 1. A second installation groove 7 is formed at the top of the base 1. The cross-section of the second installation groove 7 is a combination of a circle and a rectangle. The vibrating device can be placed inside the first installation groove 5 and the second installation groove 7. A first installation groove 5 communicating with the inside of the second installation groove 7 is formed at the top of the base 1. A pressure-bearing seal cover 2 is provided on the top of the base 1. The first installation groove 5 and the pressure-bearing seal cover 2 can change according to the shape of the vibrating device. The pressure-bearing seal cover 2 is fixed to the top of the base 1 by bolts. The top of the vibrating device penetrates through the inside of the pressure-bearing seal cover 2 and extends to the outside of the pressure-bearing seal cover 2. An elastic mesh layer 3 is provided on the top of the pressure-bearing seal cover 2. The elastic mesh layer 3 covers the top or side of the vibrating device. The top and side of the vibrating device can be covered by the elastic mesh layer 3. A multiple vibration reduction device is provided inside the first installation groove 5. The vibrating device is arranged between the multiple vibration reduction device and the pressure-bearing seal cover 2. A U-shaped seal ring 26 is provided on the top of the base 1. The U-shaped seal ring 26 is located between the base 1 and the pressure-bearing seal cover 2. The U-shaped seal ring 26 can be a 0-shaped or O-shaped hollow seal ring, etc., so as to improve the sealing performance between the base 1 and the pressure-bearing seal cover 2.

[0028] By covering the top of the vibrating device with the elastic mesh layer 3, to a certain extent, it can reduce the situation that materials enter the inside of the first installation groove 5 from the gap between the vibrating device and the pressure-bearing seal cover 2 during the vibration process, causing damage to the internal structure of the device. Thus, the device is protected to a certain extent, and the service life of the device is extended to a certain extent, making it more convenient for the staff to use the device.

[0029] Please refer to Figure 2-4 , further, a pressure-bearing block 9 and a pressure-reducing block 10 are fixedly connected to the upper surface inside the pressure-bearing seal cover 2. The number of the pressure-reducing blocks 10 is multiple. The multiple pressure-reducing blocks 10 are arranged in a circular array on the upper surface inside the pressure-bearing seal cover 2. The pressure-bearing block 9 is arranged on the upper surface inside the rectangular cross-section part of the pressure-bearing seal cover 2. A pressure-bearing ring 24 is provided on the top of the base 1. The inclined surface angle of the pressure-bearing ring 24 is 0 - 90° (excluding 0 and 90 degrees). The cross-section of the pressure-bearing ring 24 is triangular. The pressure-bearing seal cover 2 is located inside the pressure-bearing ring 24. A seal ring 25 is provided between the second installation groove 7 and the pressure-bearing seal cover 2. The seal ring 25 is sleeved on the vibrating device. Through the seal ring 25 and the U-shaped seal ring 26, the contact between the vibrating device and the base 1 is made closer, and it is prevented that materials fall into the inside of the base 1 and the vibrating device, causing damage to the vibrating device.

[0030] The angle of the inclined surface of the pressure-bearing ring 24 is set according to the properties of the material. For example, the pressure of the material inside the container is mainly concentrated on the bottom surface of the container, and the best way to reduce the pressure on the bottom surface of the container is to locally bulge to disperse the pressure, such as a pressure relief cone. Therefore, the inclined surface of the pressure-bearing ring 24 is adjustable. The inclined surface of the pressure-bearing ring 24 mainly functions to form sufficient side pressure to reduce the material compression phenomenon caused by the positive pressure. The inclined surface angle setting of the pressure-bearing ring 24 needs to be used in conjunction with the pressure-bearing sealing cover 2 to jointly ensure that the material is not compacted and withstand the positive pressure of the material when overloaded, so that the staff can use the device more conveniently.

[0031] See also Figure 5 The multiple vibration reduction device includes a vibration reduction sleeve 8, the bottom of which is fixedly connected to the inner wall of the first mounting groove 5, the cross-section of the vibration reduction sleeve 8 is arc-shaped, the material of the vibration reduction sleeve 8 is elastic material such as rubber, the vibration reduction sleeve 8 is located inside the sealing ring 25, the interior of the vibration reduction sleeve 8 is a hollow structure, a plurality of slide grooves 12 are provided on the lower surface inside the first mounting groove 5, and the plurality of slide grooves 12 are equidistantly arranged inside the vibration reduction sleeve 8, two slide grooves 12 form a group, and the interiors of the two slide grooves 12 are both slidably connected with support rods 14, the tops of the two support rods 14 are fixedly connected with support plates 22, the tops of the support plates 22 are in contact with the inner wall of the vibration reduction sleeve 8, the bottom of the support rod 14 is fixedly connected with a spring 13, and the end of the spring 13 away from the support rod 14 is fixedly connected to the inner wall of the slide groove 12, and the spring 13 can be reset and compressed by moving the support rod 14 up and down.

[0032] Furthermore, a movable groove 15 is formed on opposite sides of the two support rods 14 , and first sliders 17 extending to the outside of the movable grooves 15 are slidably connected inside the two movable grooves 15 , and a support shaft 16 is fixedly connected between the two first sliders 17 .

[0033] Furthermore, a fixed block 21 is fixedly connected to the surface of the support shaft 16, and the left and right sides of the fixed block 21 are rotatably connected to the first transmission rod 20 and the second transmission rod 23, respectively, and the rotation points of the first transmission rod 20 and the second transmission rod 23 are located on the same straight line.

[0034] Furthermore, the top and bottom of the first transmission rod 20 and the second transmission rod 23 are rotatably connected with the second slider 19, and the tension spring 18 is fixedly connected between the two second sliders 19 arranged at the top of the first transmission rod 20 and the second transmission rod 23, and the tension spring 18 is also fixedly connected between the two second sliders 19 arranged at the bottom of the first transmission rod 20 and the second transmission rod 23. The tension spring 18 can be reset and stretched by the relative movement of the two second sliders 19.

[0035] When the vibrating device is shut down, after the vibrating device stops, the vibration frequency of the vibrating device body slowly decreases from high to 0. Since the base 1 itself has a relatively low vibration frequency, when the vibration frequency of the vibrating device body slowly decreases from high to 0, resonance occurs when the vibration frequencies of the vibrating device and the base 1 are the same. When the vibrating device passes through the resonance area, the shock-absorbing sleeve 8 is compressed and reset, and at the same time, the support plate 22 moves downward. Through the action of the spring 13 on the support rod 14, the support plate 22 moves up and down, and the vibration impact force is reduced to a certain extent. At the same time, as the support plate 22 moves downward, the first transmission rod 20 and the second transmission rod 23 move relatively, the two second sliders 19 move relatively, and the tension spring 18 is stretched, thereby realizing further reduction of the impact force. At the same time, through the action of the spring 13, the tension spring 18 and the shock-absorbing sleeve 8, the vibration impact force is reduced multiple times. At the same time, through the reasonable distribution of the spring 13, the tension spring 18 and the shock-absorbing sleeve 8, the mechanical properties and stability effect of the device are increased, the buffer force becomes larger, and the impact force is reduced to the maximum extent, thereby eliminating the vibration of the pressure-bearing seal cover 2 and extending the service life of the device to a certain extent. At the same time, through the elastic buffer of the multiple vibration reduction devices and the deformation of the U-shaped seal ring 26 and the seal ring 25 themselves, the U-shaped seal ring 26 and the seal ring 25 can always closely adhere to the vibrating device and follow the device for a certain displacement, thereby realizing the dynamic seal of the vibrating device.

[0036] Please refer to Figure 6 Furthermore, two symmetric positioning blocks 4 are fixedly connected to the bottom of the pressure-bearing seal cover 2. A positioning groove 6 for sliding connection with the surface of the positioning block 4 is formed on the inner wall of the first installation groove 5. The positioning block 4 and the positioning groove 6 are in the shape of an isosceles trapezoid, and the positioning block 4 is located outside the seal ring 25.

[0037] Furthermore, rollers 11 are arranged on both the front and rear sides of the positioning block 4. The rollers 11 can roll between the positioning block 4 and the positioning groove 6. By rolling the rollers 11 between the positioning block 4 and the positioning groove 6, the friction force between the positioning block 4 and the positioning groove 6 is reduced to a certain extent, and the sliding friction between the positioning block 4 and the positioning groove 6 is changed into rolling friction, so that the positioning block 4 can move more smoothly inside the positioning groove 6. Through the mutual cooperation of the positioning block 4 and the positioning groove 6, the pressure-bearing seal cover 2 can be positioned and installed more smoothly, making it more convenient for the staff to use the device.

[0038] Working principle: The vibration device uses dynamic sealing. During use, when the pressure-bearing sealing cover 2 is assembled into the second installation groove 7 and the first installation groove 5, the positioning block 4 and the positioning groove 6 cooperate with each other, enabling the pressure-bearing sealing cover 2 to be positioned, installed, and fixed more smoothly. By covering the top of the vibration device with the elastic mesh layer 3, to a certain extent, it can reduce the situation where materials enter the inside of the first installation groove 5 through the gap between the vibration device and the pressure-bearing sealing cover 2 during vibration, preventing damage to the internal structure of the device, thereby providing certain protection to the device and extending its service life to a certain extent. When the vibration device passes through the resonance area during shutdown, the damping sleeve 8 is compressed and reset, and at the same time, the support plate 22 moves downward. Through the action of the spring 13 on the support rod 14, the support plate 22 moves up and down, and the vibration impact force is reduced to a certain extent. At the same time, as the support plate 22 moves downward, the first transmission rod 20 and the second transmission rod 23 move relatively, and the two second sliders 19 move relatively, stretching the tension spring 18, thereby realizing further reduction of the impact force. At the same time, through the action of the spring 13, the tension spring 18, and the damping sleeve 8, the vibration impact force is reduced multiple times. At the same time, through the reasonable distribution of the spring 13, the tension spring 18, and the damping sleeve 8, the mechanical properties and stability effect of the device are enhanced, increasing the buffer force and maximizing the reduction of the impact force, thereby eliminating the vibration of the pressure-bearing sealing cover 2 and extending the service life of the device to a certain extent.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. Dynamic seal for vibrating equipment, including a base (1), characterized in that: A second mounting groove (7) is formed at the top of the base (1). The cross-section of the second mounting groove (7) is a combination of a circle and a rectangle. A first mounting groove (5) communicating with the inside of the second mounting groove (7) is formed at the top of the base (1). A pressure-bearing sealing cover (2) is arranged on the top of the base (1). The pressure-bearing sealing cover (2) is fixed to the top of the base (1) by bolts. The top of the vibrating device penetrates through the inside of the pressure-bearing sealing cover (2) and extends to the outside of the pressure-bearing sealing cover (2). An elastic net layer (3) is arranged on the top of the pressure-bearing sealing cover (2). The elastic net layer (3) covers the top of the vibrating device. A multiple vibration reduction device is arranged inside the first mounting groove (5). A U-shaped sealing ring (26) is arranged on the top of the base (1). The U-shaped sealing ring (26) is located between the base (1) and the pressure-bearing sealing cover (2); A pressure-bearing block (9) and a pressure-reducing block (10) are fixedly connected to the upper surface inside the pressure-bearing sealing cover (2). The cross-section of the pressure-reducing block (10) is triangular. A pressure-bearing ring (24) is arranged on the top of the base (1). A sealing ring (25) is arranged between the second mounting groove (7) and the pressure-bearing sealing cover (2); The multiple vibration reduction device includes a damping sleeve (8). The bottom of the damping sleeve (8) is fixedly connected to the inner wall of the first mounting groove (5). The cross-section of the damping sleeve (8) is arc-shaped. Two sliding grooves (12) are formed on the lower surface inside the first mounting groove (5). The two sliding grooves (12) are in a group. A support rod (14) is slidably connected to the inside of each of the two sliding grooves (12). The tops of the two support rods (14) are fixedly connected to a support plate (22).

2. The dynamic seal for a vibration device according to claim 1, characterized in that: The top of the support plate (22) is in contact with the inner wall of the damping sleeve (8). A spring (13) is fixedly connected to the bottom of the support rod (14). One end of the spring (13) away from the support rod (14) is fixedly connected to the inner wall of the sliding groove (12).

3. The dynamic seal for a vibration device according to claim 2, characterized in that: Moving grooves (15) are formed on the opposite sides of the two support rods (14). A first slider (17) extending to the outside of the moving groove (15) is slidably connected to the inside of each of the two moving grooves (15). A support shaft (16) is fixedly connected between the two first sliders (17).

4. The dynamic seal for a vibration device according to claim 3, characterized in that: A fixed block (21) is fixedly connected to the surface of the support shaft (16). A first transmission rod (20) and a second transmission rod (23) are respectively rotatably connected to the left and right sides of the fixed block (21). The rotation points of the first transmission rod (20) and the second transmission rod (23) are on the same straight line.

5. The dynamic seal for a vibration device according to claim 4, characterized in that: Second sliders (19) are rotatably connected to the top and bottom of the first transmission rod (20) and the second transmission rod (23). A tension spring (18) is fixedly connected between the two second sliders (19) arranged at the top of the first transmission rod (20) and the second transmission rod (23).

6. The dynamic seal for a vibration device according to claim 1, wherein: Two symmetric positioning blocks (4) are fixedly connected to the bottom of the pressure-bearing sealing cover (2). A positioning groove (6) slidably connected to the surface of the positioning block (4) is formed on the inner wall of the first mounting groove (5).

7. The dynamic seal for a vibration device according to claim 6, characterized in that: Rollers (11) are arranged on the front and back sides of the positioning block (4).

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