End sealing mechanism and spiral feeding cut-off device thereof

Abstract

According to the end sealing mechanism and the spiral feeding cut-off device thereof, when the end of the charging barrel needs to be pneumatically sealed, the end of the rotating shaft is sealed through the baffle pneumatic unit to prevent powdery materials from entering the end of the charging barrel, and the end of the charging barrel is sealed through multiple layers of sealing rings and sealing bearings 5 in the rotating sealing supporting unit. A better sealing effect is achieved, and the spiral feeding and stopping device can operate stably.

Description

Technical Field

[0001] The utility model relates to the technical field of compressed air energy storage, in particular to an end sealing mechanism and a spiral feeding cut-off device thereof. Background Art

[0002] Currently, known electronic metering devices (such as quantitative packaging scales and electronic batching scales) consist of a feeding mechanism, a weighing mechanism, and a discharge mechanism. There are various types of feeding mechanisms for electronic metering devices, with the screw feeder being the most commonly used. During operation, the electronic scale activates the screw feeder, which transports the material to the weighing mechanism for weighing. When the required weight is reached, the screw feeder stops, and the weighing mechanism unloads the material, concluding the weighing process. However, existing screw feeder cutoff mechanisms are susceptible to being soaked by powder during transport or loading, causing jamming and damage to bearings and rotating shafts. Utility Model Content

[0003] In order to solve the above technical problems, one of the technical solutions adopted by the present invention is: an end sealing mechanism, which is arranged at the end of the rotating shaft 2 of the barrel 1 and is used to seal the end of the barrel to prevent powdered material from entering the end of the barrel. The mechanism includes:

[0004] The mounting base 3 is used to support the various components of the mechanism, and the mounting base 3 and the barrel are arranged perpendicular to each other;

[0005] The baffle pneumatic unit 4 is used to pneumatically seal the end of the barrel 1. The baffle pneumatic unit 4 is installed on the mounting base 3, and its movement direction is parallel to the axis of the rotating shaft 2;

[0006] A rotary seal support unit 5 is used to seal the end of the rotating shaft 2. The rotary seal support unit 5 is mounted on the mounting base 3, and its mounting position is parallel to the movement direction of the baffle pneumatic unit 4.

[0007] The baffle pneumatic unit 4 and the rotary seal support unit 5 are both mounted on the mounting base 3 via a common base end cover 6 .

[0008] Furthermore, the baffle pneumatic unit 4 includes:

[0009] Mounting housing 401, which is mounted on the base end cover 6;

[0010] A push rod 402 is mounted in the mounting housing 401;

[0011] A pushing cylinder 403 is mounted on an end of the mounting housing 401 away from the base end cover 6, and a pushing end of the pushing cylinder 403 is fixedly connected to the push rod 402;

[0012] A shaft-penetrating baffle 404, the upper end of which is mounted on the push rod 402;

[0013] The housing end cover 405 is located at an end away from the base end cover 6;

[0014] The lower end of the shaft-penetrating baffle 404 passes through the rotating shaft 2 , so that the shaft-penetrating baffle 404 moves along the axial direction of the rotating shaft 2 .

[0015] Furthermore, an elastic positioning block 406 is provided on the inner wall of the mounting base 3 arranged opposite to the shaft-penetrating baffle 404 .

[0016] Furthermore, an adjustment piece 407 is provided between the through-axis baffle 404 and the push rod 402 for adjusting the distance between the rotating shaft 2 and the through-axis baffle 404;

[0017] The adjusting piece 407 is slidably mounted on the rotating shaft 2 at one end thereof close to the rotating shaft 2 .

[0018] Furthermore, bearings 408 are installed between the adjustment piece 407 and the rotating shaft 2 , between the shaft-penetrating baffle 404 and the rotating shaft 2 , and between the push rod 402 and the mounting housing 401 .

[0019] Furthermore, the rotary seal support unit 5 includes:

[0020] A sealing mounting block 501, which is mounted on the base end cover 6;

[0021] The sealing ring 502 and the sealing bearing 503 are sequentially mounted on the rotating shaft 2;

[0022] Seal the end cap 504.

[0023] Another technical solution adopted by the present invention is: a spiral feeding cut-off device, which includes any one of the above-mentioned end sealing mechanisms.

[0024] The advantages and positive effects of the present invention are as follows: when it is necessary to perform pneumatic sealing on the end of the barrel 1, the sealing at the end of the rotating shaft 2 is completed through the baffle pneumatic unit 4 to prevent powdered materials from entering the end of the barrel, and a better sealing effect is achieved through the multi-layer sealing ring 502 and the sealing bearing 503 in the rotating seal support unit 5, so that the spiral feeding cut-off device can run smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the end sealing mechanism;

[0026] Figure 2 It is a structural diagram of the spiral feeding cut-off device;

[0027] In the figure: 1. Barrel; 2. Rotating shaft; 3. Mounting base; 4. Baffle pneumatic unit; 401. Mounting shell; 402. Push rod; 403. Push cylinder; 404. Through-shaft baffle; 405. Shell end cover; 406. Elastic positioning block; 407. Adjustment sheet; 408. Mounting bearing; 5. Rotary seal support unit; 501. Seal mounting block; 502. Sealing ring; 503. Sealing bearing; 504. Sealing end cover; 6. Base end cover. DETAILED DESCRIPTION

[0028] In order to better understand the present invention, the present invention will be further described below in conjunction with specific embodiments and drawings.

[0029] Example 1

[0030] like Figure 1 As shown, the end sealing mechanism is provided at the end of the rotating shaft 2 of the barrel 1 and is used to seal the end of the barrel to prevent powdered material from entering the end of the barrel. The mechanism includes:

[0031] The mounting base 3 is used to support the various components of the mechanism, and the mounting base 3 and the barrel are arranged perpendicular to each other;

[0032] The baffle pneumatic unit 4 is used to pneumatically seal the end of the barrel 1. The baffle pneumatic unit 4 is installed on the mounting base 3, and its movement direction is parallel to the axis of the rotating shaft 2;

[0033] Specifically, the baffle pneumatic unit 4 includes:

[0034] Mounting housing 401, which is mounted on the base end cover 6;

[0035] A push rod 402 is mounted in the mounting housing 401;

[0036] A pushing cylinder 403 is mounted on an end of the mounting housing 401 away from the base end cover 6, and a pushing end of the pushing cylinder 403 is fixedly connected to the push rod 402;

[0037] A shaft-penetrating baffle 404, the upper end of which is mounted on the push rod 402;

[0038] The housing end cover 405 is located at an end away from the base end cover 6;

[0039] The lower end of the shaft-penetrating baffle 404 passes through the rotating shaft 2 , so that the shaft-penetrating baffle 404 moves along the axial direction of the rotating shaft 2 .

[0040] Furthermore, an elastic positioning block 406 is provided on the inner wall of the mounting base 3 arranged opposite to the shaft-penetrating baffle 404 .

[0041] Furthermore, an adjustment piece 407 is provided between the through-axis baffle 404 and the push rod 402 for adjusting the distance between the rotating shaft 2 and the through-axis baffle 404;

[0042] The adjusting piece 407 is slidably mounted on the rotating shaft 2 at one end thereof close to the rotating shaft 2 .

[0043] Furthermore, bearings 408 are installed between the adjustment piece 407 and the rotating shaft 2 , between the shaft-penetrating baffle 404 and the rotating shaft 2 , and between the push rod 402 and the mounting housing 401 .

[0044] A rotary seal support unit 5 is used to seal the end of the rotating shaft 2. The rotary seal support unit 5 is mounted on the mounting base 3, and its mounting position is parallel to the movement direction of the baffle pneumatic unit 4.

[0045] Specifically, the rotary seal support unit 5 includes:

[0046] A sealing mounting block 501, which is mounted on the base end cover 6;

[0047] The sealing ring 502 and the sealing bearing 503 are sequentially mounted on the rotating shaft 2;

[0048] Seal the end cap 504.

[0049] The baffle pneumatic unit 4 and the rotary seal support unit 5 are both mounted on the mounting base 3 via a common base end cover 6 .

[0050] Its working process is as follows: when it is necessary to perform pneumatic sealing on the end of the barrel 1, the pushing cylinder 403 in the baffle pneumatic unit 4 drives the push rod 402 to be pushed out, so that the through-axis baffle 404 is close to the end of the rotating shaft 2. When the upper end of the through-axis baffle 404 is close to the elastic positioning block 406, the pushing cylinder 403 is stopped, completing the sealing of the end of the rotating shaft 2 to prevent powdered material from entering the end of the barrel.

[0051] When the specific distance between the through-shaft baffle 404 and the rotating shaft 2 needs to be adjusted, it can be achieved by fine-tuning the adjustment piece 407.

[0052] And by rotating the multi-layer sealing ring 502 and the sealing bearing 503 in the sealing support unit 5, a better sealing effect is achieved.

[0053] Example 2

[0054] like Figure 2 As shown, the spiral feeding cut-off device includes the end sealing mechanism described in the above embodiment 1.

[0055] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. End sealing mechanism, characterized by: The mechanism is arranged at the end of the rotating shaft (2) of the barrel (1) and is used to seal the end of the barrel to prevent powdered material from entering the end of the barrel. The mechanism comprises: A mounting base (3) is used to carry various components of the mechanism, wherein the mounting base (3) and the barrel are arranged perpendicular to each other; A baffle pneumatic unit (4) is used to pneumatically seal the end of the barrel (1), wherein the baffle pneumatic unit (4) is mounted on the mounting base (3) and its movement direction is parallel to the axis of the rotating shaft (2); A rotary seal support unit (5) is used to seal the end of the rotary shaft (2), wherein the rotary seal support unit (5) is mounted on the mounting base (3), and its mounting position is parallel to the movement direction of the baffle pneumatic unit (4); The baffle pneumatic unit (4) and the rotary seal support unit (5) are both mounted on the mounting base (3) via a common base end cover (6).

2. The end sealing mechanism according to claim 1, characterized in that: The baffle pneumatic unit (4) comprises: An installation housing (401) is installed at the base end cover (6); A push rod (402) mounted in the mounting housing (401); A pushing cylinder (403) is installed at one end of the mounting housing (401) away from the base end cover (6), and the pushing end of the pushing cylinder (403) is fixedly connected to the push rod (402); A shaft-penetrating baffle (404), the upper end of which is mounted on the push rod (402); a housing end cover (405) located at an end away from the base end cover (6); The lower end of the through-axis baffle (404) passes through the rotating shaft (2), so that the through-axis baffle (404) moves along the axial direction of the rotating shaft (2).

3. The end sealing mechanism according to claim 2, characterized in that: An elastic positioning block (406) is provided on the inner wall of the mounting base (3) arranged opposite to the through-axis baffle (404).

4. The end sealing mechanism according to claim 3, characterized in that: An adjustment plate (407) is provided between the through-axis baffle (404) and the push rod (402) for adjusting the distance between the rotating shaft (2) and the through-axis baffle (404); The adjusting piece (407) is slidably mounted on the rotating shaft (2) at one end thereof close to the rotating shaft (2).

5. The end sealing mechanism according to claim 4, characterized in that: There are mounting bearings (408) between the adjustment piece (407) and the rotating shaft (2), between the through-shaft baffle (404) and the rotating shaft (2), and between the push rod (402) and the mounting housing (401).

6. The end sealing mechanism according to claim 1, characterized in that: The rotary seal support unit (5) comprises: A sealing mounting block (501) mounted on the base end cover (6); A sealing ring (502) and a sealing bearing (503) are sequentially mounted on the rotating shaft (2); Sealing end cap (504). 7.Spiral feeding cut-off device, characterized by: The device comprises the end sealing mechanism according to any one of claims 1-6.

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