Vibrating screen thin oil sealing device

Abstract

The utility model relates to the technical field of vibrating screens, in particular to a thin oil sealing device of a vibrating screen, which comprises a middle rotating shaft, end shafts and a sealing ring. The sealing mechanism is arranged on the surface of the end shaft; the sealing mechanism comprises an inner sealing assembly arranged on the surface of the end shaft, outer sealing assemblies are arranged on the two sides of the inner sealing assembly, and the outer sealing assemblies are installed on the surface of the end shaft. According to the thin oil sealing device for the vibrating screen, under the action of the sealing mechanism, when the shell works, the double-layer sealing effect of the interior and the exterior can be achieved, internal sealing is formed for the shell through the inner sealing air bag and the inner sealing ring, secondary sealing is formed for the exterior of the shell in cooperation with the outer sealing air bag and the outer sealing ring, and the sealing effect is good. And the effect of improving the sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a thin oil sealing device for vibrating screens. Background Art

[0002] Vibrating screen is a screening machine used to classify particles of various materials. It is mainly composed of screen box, vibrator, spring support device and driving parts. Its working principle is that the eccentric shaft in the vibrator is driven by the motor, and the eccentric part of the eccentric shaft rotates around the fixed axis to form centrifugal force. The rotation of the eccentric shaft drives the vibrating screen box to make directional jumping movements.

[0003] After searching the prior art, "a vibrating screen vibrator bearing thin oil lubrication structure" was found with the announcement number "CN214742798U". This device facilitates the addition of thin oil to the vibrator bearing, but the sealing effect of the device is poor during use, which may cause the thin oil to be lost quickly, affecting the use effect of the device.

[0004] Therefore, a vibrating screen thin oil sealing device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a vibrating screen thin oil sealing device in order to solve the above-mentioned problem, thereby improving the problem that the sealing effect is poor during use, which may cause the thin oil to be lost quickly and affect the use effect of the device.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme. The vibrating screen oil sealing device includes: a middle rotating shaft, both ends of which are connected to end shafts; a sealing mechanism, which is arranged on the surface of the end shaft; wherein the sealing mechanism includes an inner sealing component arranged on the surface of the end shaft, outer sealing components are arranged on both sides of the inner sealing component, and the outer sealing component is installed on the surface of the end shaft.

[0007] Preferably, the inner sealing assembly includes a shell sleeved on the surface of the end shaft, the inner wall of the shell is fixedly connected to a middle bearing, the inner edge of the middle bearing is fixedly connected to the surface of the end shaft, and inner sealing airbags are provided on both sides of the middle bearing, the inner sealing airbags are fixedly connected to the inner wall of the shell, and the interior of the shell is sealed by the provided inner sealing airbags.

[0008] Preferably, the outer sealing assembly includes an outer connecting ring fixedly connected to the side of the shell, the other side of the outer connecting ring is fixedly connected to the side shell, an outer sealing airbag is arranged inside the side shell, and an outer sealing ring is fixedly connected to the side of the outer connecting ring close to the side shell, the outer sealing ring is in contact with the surface of the outer sealing airbag, and the outer sealing airbag forms a seal with the outside of the shell.

[0009] Preferably, an inner sealing ring is fixedly connected to the inner wall of the shell, and a side of the inner sealing ring away from the inner wall of the shell is in contact with an inner sealing airbag, and the inner sealing airbag cooperates with the inner sealing ring to enhance the sealing performance.

[0010] Preferably, inner retaining rings are provided on both sides of the middle bearing, and side retaining rings are provided on the other side of the inner retaining ring. The side retaining rings are in contact with the surface of the inner sealing airbag, and the side retaining rings squeeze the inner sealing airbag to achieve a good sealing effect.

[0011] Preferably, a disc spring is provided between the side retaining ring and the inner retaining ring, the disc spring is sleeved on the surface of the end shaft, and the disc spring pushes the side retaining ring to squeeze the inner sealing airbag.

[0012] Preferably, the outer edge of the outer sealing airbag is fixedly connected to a side bearing, and the outer edge of the side bearing is fixedly connected to the inner wall of the side shell. The side bearing keeps the outer sealing airbag squeezed to form a good sealing effect.

[0013] The beneficial effects of the utility model are:

[0014] 1. The vibrating screen thin oil sealing device can form a double-layer sealing effect of the inside and outside of the shell when the shell is working under the action of the sealing mechanism. The device forms an internal seal on the shell through the inner sealing airbag and the inner sealing ring, and forms a secondary seal on the outside of the shell with the outer sealing airbag and the outer sealing ring, thereby achieving the effect of improving the sealing effect;

[0015] 2. By arranging disc springs and side bearings, the inner sealing airbag and the outer sealing airbag can be continuously pressurized under the action of the disc springs and the side bearings. The device uses the disc spring to push the side retaining ring to squeeze the inner sealing airbag, and the inner sealing airbag cooperates with the inner sealing ring to form a sealing effect on the inside of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the sealing mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the shell of the utility model;

[0019] Figure 4 This is a schematic diagram of the explosion structure of the inner sealing component of the utility model;

[0020] Figure 5 It is a schematic diagram of the explosion structure of the outer sealing component of the utility model.

[0021] In the figure: 1. middle rotating shaft; 2. end shaft; 3. sealing mechanism; 31. inner sealing assembly; 311. shell; 312. middle bearing; 313. inner retaining ring; 314. disc spring; 315. side retaining ring; 316. inner sealing airbag; 317. inner sealing ring; 32. outer sealing assembly; 321. outer connecting ring; 322. side shell; 323. side bearing; 324. outer sealing airbag; 325. outer sealing ring. 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 only 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] When implementing: Figure 1-5 As shown, the vibrating screen oil sealing device comprises: a middle rotating shaft 1, both ends of which are connected to the end shafts 2; a sealing mechanism 3, which is arranged on the surface of the end shaft 2; wherein the sealing mechanism 3 comprises an inner sealing component 31 arranged on the surface of the end shaft 2, and both sides of the inner sealing component 31 are provided with outer sealing components 32, and the outer sealing component 32 is installed on the surface of the end shaft 2;

[0024] like Figure 1-Figure 4 As shown, the inner seal assembly 31 includes a shell 311 sleeved on the surface of the end shaft 2, the inner wall of the shell 311 is fixedly connected with a middle bearing 312, the inner edge of the middle bearing 312 is fixedly connected to the surface of the end shaft 2, both sides of the middle bearing 312 are provided with inner sealing airbags 316, the inner sealing airbag 316 is fixedly connected to the inner wall of the shell 311, the inner wall of the shell 311 is fixedly connected with an inner sealing ring 317, the side of the inner sealing ring 317 away from the inner wall of the shell 311 is in contact with the inner sealing airbag 316, both sides of the middle bearing 312 are provided with inner retaining rings 313, the other side of the inner retaining ring 313 is provided with a side retaining ring 315, the side retaining ring 315 is in contact with the surface of the inner sealing airbag 316, a disc spring 314 is provided between the side retaining ring 315 and the inner retaining ring 313, and the disc spring 314 is sleeved on the surface of the end shaft 2;

[0025] The device can be provided with a vibration motor on the surface of the middle rotating shaft 1, and can also be provided with a motor at one end shaft 2 to drive the eccentric shaft, which is specifically adjusted according to the actual use environment. When the middle rotating shaft 1 rotates, the device drives the two end shafts 2 to rotate along through two connectors. The addition of connectors shall be based on the actual use environment. When the end shafts 2 rotate, the inner edge of the middle bearing 312 inside thereof rotates synchronously. At this time, the disc spring 314 between the inner retaining ring 313 and the side retaining ring 315 moves away from the inner retaining ring 313 under the action of elastic potential energy, and causes the side retaining ring 315 to squeeze the inner sealing airbag 316. At this time, the inner sealing airbag 316 cooperates with the inner sealing ring 317 to form a sealing effect on the inside of the housing 311;

[0026] like Figure 1 , Figure 2 and Figure 5 As shown, the outer sealing assembly 32 includes an outer connecting ring 321 fixedly connected to the side of the shell 311, the other side of the outer connecting ring 321 is fixedly connected to the side shell 322, the inner part of the side shell 322 is provided with an outer sealing airbag 324, the side of the outer connecting ring 321 close to the side shell 322 is fixedly connected to the outer sealing ring 325, the outer sealing ring 325 is in contact with the surface of the outer sealing airbag 324, the outer edge of the outer sealing airbag 324 is fixedly connected to the side bearing 323, and the outer edge of the side bearing 323 is fixedly connected to the inner wall of the side shell 322;

[0027] When the end shaft 2 rotates, the outer sealing airbag 324 and the outer sealing ring 325 rotate synchronously. At this time, under the action of the outer sealing airbag 324 and the outer sealing ring 325, a secondary sealing effect is formed on the outside of the shell 311, and under the action of the side shell 322, the inner edge of the side shell 322 forms an extrusion effect on the outer sealing airbag 324, thereby maintaining a good sealing effect of the outer sealing airbag 324.

[0028] When the utility model is in use, the end shaft 2 rotates and the inner edge of the middle bearing 312 rotates accordingly, the disc spring 314 pushes the side retaining ring 315 to squeeze the inner sealing airbag 316, the inner sealing airbag 316 cooperates with the inner sealing ring 317 to form a seal on the inside of the shell 311, and the outer sealing airbag 324 and the outer sealing ring 325 rotate along with the end shaft 2. At this time, under the action of the outer sealing airbag 324 and the outer sealing ring 325, a secondary seal is formed on the outside of the shell 311, and under the action of the side shell 322, the inner edge of the side shell 322 squeezes the outer sealing airbag 324 to maintain a good sealing effect of the outer sealing airbag 324.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The vibrating screen oil sealing device is characterized by: include: A middle rotating shaft (1), wherein both ends of the middle rotating shaft (1) are connected to end shafts (2); A sealing mechanism (3), wherein the sealing mechanism (3) is arranged on the surface of the end shaft (2); The sealing mechanism (3) comprises an inner sealing component (31) arranged on the surface of the end shaft (2), outer sealing components (32) are arranged on both sides of the inner sealing component (31), and the outer sealing component (32) is installed on the surface of the end shaft (2).

2. The vibrating screen thin oil sealing device according to claim 1 is characterized in that: The inner sealing component (31) comprises a shell (311) sleeved on the surface of the end shaft (2); the inner wall of the shell (311) is fixedly connected to a middle bearing (312); the inner edge of the middle bearing (312) is fixedly connected to the surface of the end shaft (2); inner sealing airbags (316) are provided on both sides of the middle bearing (312); and the inner sealing airbags (316) are fixedly connected to the inner wall of the shell (311).

3. The vibrating screen thin oil sealing device according to claim 2 is characterized in that: The outer sealing component (32) comprises an outer connecting ring (321) fixedly connected to the side of the shell (311); the other side of the outer connecting ring (321) is fixedly connected to a side shell (322); an outer sealing airbag (324) is arranged inside the side shell (322); an outer sealing ring (325) is fixedly connected to the side of the outer connecting ring (321) close to the side shell (322); and the outer sealing ring (325) contacts the surface of the outer sealing airbag (324).

4. The vibrating screen thin oil sealing device according to claim 2 is characterized in that: An inner sealing ring (317) is fixedly connected to the inner wall of the shell (311), and a side of the inner sealing ring (317) away from the inner wall of the shell (311) is in contact with the inner sealing airbag (316).

5. The vibrating screen thin oil sealing device according to claim 4 is characterized in that: Inner retaining rings (313) are provided on both sides of the middle bearing (312), and a side retaining ring (315) is provided on the other side of the inner retaining ring (313), and the side retaining ring (315) is in contact with the surface of the inner sealing airbag (316).

6. The vibrating screen thin oil sealing device according to claim 5, characterized in that: A disc spring (314) is provided between the side retaining ring (315) and the inner retaining ring (313), and the disc spring (314) is sleeved on the surface of the end shaft (2).

7. The vibrating screen oil sealing device according to claim 3, characterized in that: The outer edge of the outer sealing airbag (324) is fixedly connected to a side bearing (323), and the outer edge of the side bearing (323) is fixedly connected to the inner wall of the side housing (322).

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