Gear ring limiting device of deslagging door

Abstract

The utility model relates to the technical field of traditional Chinese medicine extraction equipment, in particular to a gear ring limiting device of a deslagging door. Comprising a driving cylinder, a limiting rod and a limiting sleeve; the limiting sleeve is provided with a hollow movable cavity; the driving cylinder and the limiting sleeve are both arranged at the extraction tank shell, and the limiting sleeve is arranged outside the limiting rod in a sleeving manner through the movable cavity; the driving air cylinder can push the limiting rod to move in the direction away from the driving air cylinder so that the gear ring can be limited. When the output shaft of the driving air cylinder retracts, the limiting rod can automatically move towards the driving air cylinder so as to relieve limiting of the gear ring. The gear ring can be limited through the limiting rods. When the gear ring rotates mistakenly due to misoperation of a worker or other reasons, the gear ring can abut against the limiting rod, and failure of the sealing state of the deslagging door is avoided; and the gear ring abuts against the limiting rod, and the limiting rod is not fixedly connected with the output shaft of the driving air cylinder, so that the abutting acting force of the gear ring to the limiting rod is not transmitted to the output shaft of the driving air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of traditional Chinese medicine extraction equipment, in particular to a gear ring limiting device for a slag discharge door. Background Art

[0002] During the decoction production process of the extraction tank, the slag discharge door at the bottom is in a sealed state, and the gear ring of the slag discharge door is in a rotating sealing position, thereby ensuring the sealing state of the slag discharge door.

[0003] However, when the slag discharge door is in a sealed state, erroneous rotation of the gear ring due to misoperation or other reasons may easily cause the sealing state of the slag discharge door to fail, resulting in a production accident. Utility Model Content

[0004] In view of the above problems existing in the prior art, the utility model provides a gear ring limiting device for a slag discharge door.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A gear ring limiting device for a slag discharge door, comprising a driving cylinder, a limiting rod and a limiting sleeve; the limiting sleeve has a hollow movable cavity;

[0007] The driving cylinder and the limiting sleeve are both arranged on the extraction tank shell, and the limiting sleeve is sleeved outside the limiting rod through the movable cavity;

[0008] When the output shaft of the driving cylinder extends, the driving cylinder can push the limiting rod to drive the second end of the limiting rod to move in a direction away from the driving cylinder, so as to limit the gear ring;

[0009] When the output shaft of the driving cylinder is retracted, the limiting rod can automatically move toward the direction of the driving cylinder to release the limiting of the gear ring.

[0010] Preferably, the inner side wall of the movable cavity is provided with a mounting seat which is annular and sleeved outside the limit rod; the limit rod outer sleeve is provided with a return spring;

[0011] The first end of the return spring is connected to the limit rod, and the second end abuts against the mounting seat; the return spring is used to maintain the tendency of the limit rod to move toward the direction of the driving cylinder.

[0012] Preferably, the limiting rod has a movable portion and an abutting portion, and the diameter of the movable portion is smaller than the diameter of the abutting portion;

[0013] The mounting seat and the return spring are both sleeved outside the movable portion, and the first end of the return spring abuts against the abutting portion.

[0014] Preferably, an abutment groove is provided on the abutment portion; the output shaft of the driving cylinder can extend into the abutment groove to push the limiting rod in the axial direction of the limiting rod;

[0015] In an axial direction perpendicular to the limiting rod, a distance between the output shaft of the driving cylinder and an inner side wall of the abutment groove is greater than a distance between the abutment portion and an inner side wall of the active chamber.

[0016] Preferably, an abutment nut is sleeved on the output shaft of the driving cylinder;

[0017] When the driving cylinder pushes the limiting rod, the abutting nut abuts against the abutting portion.

[0018] Preferably, when the abutment nut abuts against the abutment portion, the abutment groove is away from the bottom wall of the driving cylinder and does not contact the output shaft of the driving cylinder.

[0019] Preferably, a limit baffle is provided on the gear ring, and a limit hole is provided on the limit baffle;

[0020] When the output shaft of the driving cylinder extends out, the second end of the limiting rod extends into the limiting hole to limit the gear ring.

[0021] Preferably, a mounting support is provided on the extraction tank shell; the driving cylinder and the limiting sleeve are both provided on the mounting support.

[0022] Preferably, a through hole is provided on the mounting support; the driving cylinder and the limiting sleeve are respectively arranged on both sides of the through hole, and the through hole is communicated with the active cavity.

[0023] Preferably, the limiting sleeve is detachably mounted on the mounting support.

[0024] The utility model has at least the following beneficial effects:

[0025] The present application can limit the gear ring through the limit rod while the gear ring maintains the sealing state of the slag discharge door, so that the position of the gear ring remains stable. In particular, when the gear ring rotates incorrectly due to misoperation by the staff or other reasons, the gear ring will directly abut against the limit rod, and the limit rod will abut against the inner wall of the movable cavity. Under the abutment of the limit rod, the gear ring can still better maintain the limit of the slag discharge door, avoiding the failure of the sealing state of the slag discharge door; and because the gear ring abuts against the limit rod, and the limit rod is not fixedly connected to the output shaft of the driving cylinder, the abutment force of the gear ring on the limit rod will not be transmitted to the output shaft of the driving cylinder, which can better protect the driving cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A partial schematic diagram of the extraction tank in the front view direction of some embodiments of the present application is shown;

[0027] Figure 2 A partial schematic diagram of the top view of the extraction tank in some embodiments of the present application is shown;

[0028] Figure 3 A partial cross-sectional view in the front view direction of the extraction tank in some embodiments of the present application is shown;

[0029] Figure 4 Shows Figure 3 A partial enlarged view of the middle A;

[0030] Figure 5 A cross-sectional view of a limiting rod in some embodiments of the present application is shown;

[0031] Figure 6 A schematic diagram showing the output shaft of the driving cylinder in some embodiments of the present application when it is retracted;

[0032] Figure 7 Shows Figure 6 A partial enlarged view of point B in the middle.

[0033] The parts indicated by the numbers in the accompanying drawings are as follows:

[0034] 100, extraction tank shell; 101, mounting support; 1011, through hole; 110, slag discharge door; 120, gear ring; 121, limit baffle; 1211, limit hole; 200, driving cylinder; 210, output shaft; 211, abutment nut; 300, limit sleeve; 310, movable cavity; 311, mounting seat; 400, limit rod; 410, movable part; 420, abutment part; 421, abutment groove; 500, reset spring. DETAILED DESCRIPTION

[0035] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0036] like Figure 1-3As shown, the extraction tank generally includes an extraction tank shell 100, a slag discharge door 110 driven by a first cylinder and openable and closable is provided at the bottom of the extraction tank shell 100, and a rotatable gear ring 120 driven by a second cylinder is also provided on the extraction tank shell 100. When the slag discharge door 110 is driven to be closed by the first cylinder, the extraction tank can be sealed. At this time, the gear ring 120 is driven by the second cylinder, so that the gear ring 120 can further limit the slag discharge door 110 to maintain the stability of the position of the slag discharge door 110 and ensure the sealing effect of the extraction tank.

[0037] Further, combined with Figure 4-7 As shown, this embodiment provides a gear ring limiting device for a slag discharge door, including a driving cylinder 200 and a limiting sleeve 300 arranged at the extraction tank shell 100; the limiting sleeve 300 is a hollow structure, which has a through-type active cavity 310; a limiting rod 400 is arranged in the active cavity 310, so that the limiting sleeve 300 is sleeved outside the limiting rod 400; wherein, the output shaft 210 of the driving cylinder 200, the active cavity 310 and the limiting rod 400 are all coaxially arranged. When in use, after the gear ring 120 forms a limit on the slag discharge door 110, the driving cylinder 200 is started, so that the output shaft 210 of the driving cylinder 200 extends out, and then the output shaft 210 of the driving cylinder 200 will abut against the first end of the limiting rod 400 close to the driving cylinder 200, so that the driving cylinder 200 pushes the limiting rod 400, so that the limiting rod 400 can move in the active cavity 310 in the direction away from the driving cylinder 200, and then the second end of the limiting rod 400 extends out of the active cavity 310 from the second end of the limiting sleeve 300 away from the driving cylinder 200, so that the second end of the limiting rod 400 is on the moving path of the gear ring 120. Then, the limiting rod 400 is used to limit the gear ring 120; when the slag discharge door 110 needs to be opened, the driving cylinder 200 is started to retract the output shaft 210 of the driving cylinder 200. At this time, in the absence of the thrust of the output shaft 210 of the driving cylinder 200, the limiting rod 400 can move toward the direction of the driving cylinder 200 by itself, so that the second end of the limiting rod 400 can be moved away from the moving path of the gear ring 120, so that the limiting rod 400 releases the limiting of the gear ring 120, and then the gear ring 120 is driven by the second cylinder, so that the gear ring 120 releases the limiting of the slag discharge door 110, and then the slag discharge door 110 is driven to open by the first cylinder.

[0038] It should be noted that the driving cylinder 200 in this embodiment can indirectly limit the gear ring 120 through the limiting rod 400, and in particular, there is no fixed connection between the output shaft 210 of the driving cylinder 200 and the limiting rod 400. As can be seen from the above, the output shaft 210 of the driving cylinder 200 is retracted. At this time, in the absence of the thrust of the output shaft 210 of the driving cylinder 200, the limiting rod 400 can move toward the direction of the driving cylinder 200 by itself, that is, the retraction of the driving cylinder 200 cannot drive the limiting rod 400 to reset.

[0039] Through the structure in this embodiment, while the ring gear 120 maintains the sealing state of the slag discharge door 110, the ring gear 120 can be limited by the limiting rod 400, so that the position of the ring gear 120 remains stable. In particular, when the gear ring 120 rotates incorrectly due to misoperation by the staff or other reasons, the gear ring 120 will directly abut against the limit rod 400, and the limit rod 400 will abut against the inner wall of the movable chamber 310. Under the abutment of the limit rod 400, the gear ring 120 can still better maintain the limit on the slag discharge door 110, thereby avoiding the failure of the sealing state of the slag discharge door 110; and because the gear ring 120 abuts against the limit rod 400, and the limit rod 400 is not fixedly connected to the output shaft 210 of the driving cylinder 200, the abutment force of the gear ring 120 on the limit rod 400 will not be transmitted to the output shaft 210 of the driving cylinder 200, which can better protect the driving cylinder 200.

[0040] In some embodiments, a mounting seat 311 is provided on the inner wall of the active cavity 310, and the mounting seat 311 extends in a ring shape along the circumferential direction of the limiting sleeve 300 and can be sleeved on the outside of the limiting rod 400; a reset spring 500 is also sleeved on the outside of the limiting rod 400; after the limiting device of the ring gear 120 of this embodiment is assembled, the reset spring 500 is in the active cavity 310, and the first end of the reset spring 500 is connected to the limiting rod 400, and the second end of the reset spring 500 abuts against the side wall of the mounting seat 311 facing the driving cylinder 200.

[0041] When the gear ring 120 limits the slag discharge door 110, the output shaft 210 of the driving cylinder 200 extends, so that the driving cylinder 200 abuts against the first end of the limiting rod 400, thereby pushing the limiting rod 400. In the process of the limiting rod 400 moving in the direction away from the driving cylinder 200, the return spring 500 is also compressed synchronously until the second end of the limiting rod 400 can limit the gear ring 120. It can be understood that in this process, the return spring 500 can always keep the limiting rod 400 with a tendency to move in the direction close to the driving cylinder 200.

[0042] When the slag discharge door 110 needs to be opened, the output shaft 210 of the driving cylinder 200 retracts. During this process, due to the retreat of the output shaft 210 of the driving cylinder 200, the reset spring 500 can drive the limit rod 400 to move toward the direction close to the driving cylinder 200, thereby realizing the retreat and reset of the limit rod 400, so that the second end of the limit rod 400 releases the limit on the ring gear 120.

[0043] By adding the reset spring 500, the present embodiment can better realize that the limit rod 400 moves toward the driving cylinder 200 by itself when the output shaft 210 of the driving cylinder 200 retracts, so that the limit rod 400 releases the limit on the ring gear 120, and then the ring gear 120 can release the limit on the slag discharge door 110.

[0044] It is understandable that the reset spring 500 here can also be replaced by elastic rubber, as long as the self-reset of the limiting rod 400 can be achieved, and there is no special limitation on this.

[0045] In some embodiments, the limiting rod 400 has a movable portion 410 and an abutting portion 420, and the diameter of the movable portion 410 is smaller than the diameter of the abutting portion 420. During the installation process, the reset spring 500 is first placed from the first end of the limiting sleeve 300 into the movable cavity 310, and then the movable portion 410 of the limiting rod 400 is extended from the first end of the limiting sleeve 300 into the movable cavity 310, until the abutting portion 420 of the limiting rod 400 abuts against the first end of the reset spring 500 away from the side wall of the driving cylinder 200; at this time, the reset spring 500 and the mounting seat 311 are both sleeved outside the movable portion 410, and the abutting portion 420 of the limiting rod 400 is also in the movable cavity 310. When the output shaft 210 of the driving cylinder 200 extends, the output shaft 210 of the driving cylinder 200 can extend from the first end of the limiting sleeve 300 into the active cavity 310 and abut against the abutment portion 420, thereby realizing the driving cylinder 200 pushing the limiting rod 400, and the limiting rod 400 can pass through the mounting seat 311 and extend out of the active cavity 310 through the active portion 410 with a smaller diameter, thereby realizing the limiting of the gear ring 120 by the active portion 410. When the output shaft 210 of the driving cylinder 200 retracts, the reset spring 500 can reset the limiting rod 400 by pushing the abutment portion 420.

[0046] When the limiting rod 400 limits the gear ring 120, and the gear ring 120 rotates by mistake due to misoperation by the staff or other reasons, the gear ring 120 will abut against the limiting rod 400. At this time, since the diameter of the abutting portion 420 is larger than the diameter of the movable portion 410, the limiting rod 400 abuts against the inner wall of the movable cavity 310 through the abutting portion 420, thereby maintaining the limiting state of the limiting rod 400 on the gear ring 120. It can be understood that when the diameter of the movable portion 410 is slightly smaller than the inner diameter of the mounting seat 311, when the abutting portion 420 abuts against the movable cavity 310, the movable portion 410 will also abut against the mounting seat 311, thereby improving the stability of the limiting rod 400 limiting the gear ring 120.

[0047] In some embodiments, an abutment groove 421 is provided on the side wall of the abutment portion 420 facing the driving cylinder 200. When the output shaft 210 of the driving cylinder 200 extends, the output shaft 210 of the driving cylinder 200 extends from the first end of the limiting sleeve 300 into the active cavity 310, and then the output shaft 210 of the driving cylinder 200 moves into the abutment groove 421, thereby realizing the driving cylinder 200 pushing the limiting rod 400.

[0048] Furthermore, in the axial direction perpendicular to the limiting rod 400 , in this embodiment, the distance between the output shaft 210 of the driving cylinder 200 and the inner wall of the abutment groove 421 is greater than the distance between the abutment portion 420 and the inner wall of the active cavity 310 . When the limiting rod 400 limits the ring gear 120, and the ring gear 120 rotates incorrectly due to an error in operation by the staff or other reasons, the ring gear 120 abuts against the movable part 410 of the limiting rod 400, and then the abutting part 420 abuts against the inner wall of the movable cavity 310. At this time, since the distance between the output shaft 210 of the driving cylinder 200 and the inner wall of the abutting groove 421 is greater than the distance between the abutting part 420 and the inner wall of the movable cavity 310, the output shaft 210 of the driving cylinder 200 will not abut against the inner wall of the abutting groove 421, so that the limiting rod 400 will not transfer the force to the output shaft 210 of the driving cylinder 200, thereby providing a certain protection for the driving cylinder 200.

[0049] In some embodiments, an abutment nut 211 is sleeved on the output shaft 210 of the driving cylinder 200 by means of a threaded connection. When the output shaft 210 of the driving cylinder 200 is extended, the output shaft 210 of the driving cylinder 200 extends from the first end of the limiting sleeve 300 into the movable cavity 310, and further extends into the abutment groove 421. When the output shaft 210 of the driving cylinder 200 extends into the abutment groove 421 and does not contact the bottom wall of the abutment groove 421 away from the driving cylinder 200, the abutment nut 211 achieves abutment with the abutment portion 420. When the output shaft 210 of the driving cylinder 200 is further extended, the output shaft 210 of the driving cylinder 200 can push the limiting rod 400 through the abutment nut 211, thereby achieving the limiting rod 400 limiting the gear ring 120 through the movable portion 410.

[0050] In particular, by setting the abutment nut 211, the output shaft 210 of the driving cylinder 200 is indirectly abutted against the limiting rod 400 through the abutment nut 211, which can better avoid direct contact between the driving cylinder 200 and the abutment portion 420. When the limiting rod 400 limits the ring gear 120, and the ring gear 120 rotates incorrectly due to misoperation by the staff or other reasons, the ring gear 120 abuts against the limiting rod 400, and the limiting rod 400 will not transfer the force to the driving cylinder 200, thereby protecting the driving cylinder 200.

[0051] In some embodiments, a limit baffle 121 is provided on the gear ring 120 by welding, and a limit hole 1211 is provided on the limit baffle 121. During installation, the driving cylinder 200 and the limit sleeve 300 are arranged at the extraction tank housing 100, and the limit baffle 121 is welded and installed on the gear ring 120. When the ring gear 120 limits the slag discharge door 110, at this time, the limiting hole 1211 on the limiting baffle 121 is on the moving path of the movable part 410 of the limiting rod 400; start the driving cylinder 200, so that the driving cylinder 200 pushes the limiting rod 400 to move, and in this process, the second end of the limiting rod 400, that is, the movable part 410, can extend into the limiting hole 1211, and then the limiting of the ring gear 120 is achieved through the mutual abutment between the limiting hole 1211 and the movable part 410; when the slag discharge door 110 needs to be opened, the output shaft 210 of the driving cylinder 200 is retracted, and the limiting rod 400 moves in the opposite direction under the action of the reset spring 500, so that the movable part 410 moves out of the limiting hole 1211.

[0052] In some embodiments, a mounting bracket 101 is fixedly mounted on the extraction tank shell 100 by welding, and the driving cylinder 200 and the limiting sleeve 300 are both fixedly mounted on the mounting bracket 101, thereby improving the stability of the driving cylinder 200 and the limiting sleeve 300 and facilitating use.

[0053] In some embodiments, a through hole 1011 is provided on the mounting support 101, the driving cylinder 200 is provided on the side of the mounting support 101 away from the ring gear 120, and the limiting sleeve 300 is provided on the side of the mounting support 101 close to the ring gear 120. Furthermore, the active cavity 310 of the limiting sleeve 300 is connected to the through hole 1011, and the output shaft 210 of the driving cylinder 200 can extend into the active cavity 310 through the through hole 1011 to push the limiting rod 400.

[0054] In some embodiments, the first end of the limiting sleeve 300 is detachably fixed on the mounting support 101 by bolts.

[0055] It is understandable that when the limit rod 400 limits the ring gear 120, and the ring gear 120 rotates incorrectly due to staff misoperation or other reasons, the ring gear 120 and the limit rod 400 are abutted against each other. After the limit rod 400 and the ring gear 120 are abutted against each other for a long time or multiple times, the limit rod 400 itself will bend, so that there will be an error in the limiting of the ring gear 120 by the limit rod 400. At this time, it is only necessary to disassemble the limit sleeve 300 and take out the limit rod 400 in the movable cavity 310 for repair or replacement.

[0056] In particular, since the limit rod 400 will not transmit the force to the driving cylinder 200 when it abuts against the ring gear 120, the long-term use of the driving cylinder 200 can be guaranteed. It only needs to be repaired or replaced when the limit rod 400 is bent, which is easy to use and saves costs.

[0057] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A gear ring limiting device for a slag discharge door, characterized in that: It includes a driving cylinder, a limiting rod and a limiting sleeve; the limiting sleeve has a hollow active cavity; The driving cylinder and the limiting sleeve are both arranged on the extraction tank shell, and the limiting sleeve is sleeved on the outside of the limiting rod through the movable cavity; When the output shaft of the driving cylinder extends, the driving cylinder can push the limiting rod to drive the second end of the limiting rod to move in a direction away from the driving cylinder, so as to limit the gear ring; When the output shaft of the driving cylinder is retracted, the limiting rod can automatically move toward the driving cylinder to release the limiting of the gear ring.

2. The gear ring limiting device according to claim 1, characterized in that: The inner side wall of the movable cavity is provided with a mounting seat which is annular and sleeved outside the limiting rod; the outer sleeve of the limiting rod is provided with a return spring; The first end of the return spring is connected to the limit rod, and the second end abuts against the mounting seat; the return spring is used to maintain the tendency of the limit rod to move toward the direction of the driving cylinder.

3. The gear ring limiting device according to claim 2, characterized in that: The limiting rod has a movable portion and an abutting portion, and the diameter of the movable portion is smaller than the diameter of the abutting portion; The mounting seat and the return spring are both sleeved outside the movable portion, and the first end of the return spring abuts against the abutting portion.

4. The gear ring limiting device according to claim 3, characterized in that: An abutment groove is formed on the abutment portion; the output shaft of the driving cylinder can extend into the abutment groove to push the limiting rod in the axial direction of the limiting rod; In an axial direction perpendicular to the limiting rod, a distance between the output shaft of the driving cylinder and an inner side wall of the abutment groove is greater than a distance between the abutment portion and an inner side wall of the active chamber.

5. The gear ring limiting device according to claim 4, characterized in that: An abutment nut is sleeved on the output shaft of the driving cylinder; When the driving cylinder pushes the limiting rod, the abutting nut abuts against the abutting portion.

6. The gear ring limiting device according to claim 5, characterized in that: When the abutting nut abuts against the abutting portion, the abutting groove is away from the bottom wall of the driving cylinder and does not contact the output shaft of the driving cylinder.

7. The gear ring limiting device according to claim 1, characterized in that: The gear ring is provided with a limit baffle, and the limit baffle is provided with a limit hole; When the output shaft of the driving cylinder extends out, the second end of the limiting rod extends into the limiting hole to limit the gear ring.

8. The gear ring limiting device according to claim 1, characterized in that: A mounting support is provided on the extraction tank shell; the driving cylinder and the limiting sleeve are both provided on the mounting support.

9. The gear ring limiting device according to claim 8, characterized in that: The mounting support is provided with a through hole; the driving cylinder and the limiting sleeve are respectively arranged on both sides of the through hole, and the through hole is communicated with the active cavity.

10. The gear ring limiting device according to claim 9, characterized in that: The limiting sleeve is detachably mounted on the mounting support.

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