A push rod sealing device for lime rotary kiln

Abstract

The utility model discloses a push rod sealing device for a lime rotary kiln, and relates to the field of sealing technology. The utility model includes a push rod, a sealing component, a clamping component and a hydraulic base. The sealing component includes a fixed base fixedly connected to the outer side surface of the hydraulic base, a sealing ring is movably embedded at one end of the fixed base, a first inner fixed ring is clamped and matched inside the fixed base, a sealing inner ring is clamped and matched inside the first inner fixed ring, the sealing inner ring is movably sleeved on the peripheral side surface of the push rod, a second inner fixed ring is sleeved at one end of the sealing inner ring away from the fixed base, an external fixing piece is sleeved on the peripheral side surface of the second inner fixed ring relative to the other end surface of the fixed base, and the fixed base and the external fixing piece are movably clamped by the clamping component. The utility model arranges a sealing component on the front of the hydraulic base and clamps it using the clamping component. While effectively ensuring the sealing performance, the sealing component can be conveniently disassembled to replace the worn sealing inner ring, thereby improving work efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing, in particular to a push rod sealing device for a lime rotary kiln. Background Art

[0002] Lime rotary kiln, also known as drum rotary kiln, is a highly professional calcining equipment. As the main processing equipment for producing lime, it has very high industrial utilization value. After preheating, the lime raw materials are pushed into the rotary kiln by the push rod of the hydraulic push rod device installed on the outer surface of the kiln wall. Sealing the push rod can prevent the leakage of harmful smoke in the rotary kiln.

[0003] The push rod is usually sealed by means of sealing rings at the contact point between it and the hydraulic base or the contact point between it and the kiln wall. However, the sealing ring will wear out after continuous friction with the push rod and needs to be regularly inspected. The inspection process requires disassembly of the hydraulic push rod device, which is cumbersome and has low work efficiency. Utility Model Content

[0004] The utility model aims to provide a lime rotary kiln push rod sealing device. By designing a sealing component and a clamping component, the utility model solves the problems that the existing lime rotary kiln push rod is prone to wear when using sealing rings and other sealing parts, and the hydraulic push rod device needs to be disassembled when replaced, which makes the operation more complicated and the work efficiency low.

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

[0006] The utility model discloses a push rod sealing device for a lime rotary kiln, comprising a push rod, a sealing component, a clamping component and a hydraulic base, wherein the sealing component comprises a fixed base fixedly connected to the outer side surface of the hydraulic base, a sealing ring is movably embedded at one end of the fixed base, a first inner fixed ring is clamped and matched inside the fixed base, a sealing inner ring is clamped and matched inside the first inner fixed ring, and the sealing inner ring is movably sleeved on the peripheral side surface of the push rod.

[0007] The sealing inner ring is sleeved with a second inner fixing ring at one end away from the fixing base, and the fixing base is sleeved with an outer fixing piece at the side surface of the second inner fixing ring opposite to the other end surface, and the fixing base and the outer fixing piece are movably clamped by a clamping assembly.

[0008] The utility model is further configured as follows: the fixed base is composed of two symmetrical first semicircular rings, a connecting hole is provided at the connection between the two first semicircular rings, a plurality of countersunk holes are penetrated through the other end surface of the fixed base, a sealing groove is provided on a side surface of the fixed base, the sealing groove matches the sealing ring, and a trapezoidal groove is provided on the inner wall of the fixed base.

[0009] The utility model is further configured that the fixed base is provided with a plurality of movable grooves relative to one side, a limiting block is fixed on the inner wall of the movable groove, and sliding holes are provided on the inner wall of the movable groove away from the limiting block and relative to two side surfaces.

[0010] The utility model is further configured such that the first inner fixing ring is composed of two second semicircular rings, two groups of connecting holes are opened at the connection of the two second semicircular rings, two symmetrical mounting grooves are opened at one end of one of the second semicircular rings, and two trapezoidal grooves are opened inside the first inner fixing ring.

[0011] The utility model is further configured that the sealing inner ring includes two third semicircular rings that are clipped together, and the two third semicircular rings are respectively sleeve-fitted with the trapezoidal grooves of the first inner fixed ring and the second inner fixed ring.

[0012] The utility model is further configured as follows: the external fixing member includes two symmetrical fourth semicircular rings, the outer walls of the two fourth semicircular rings are each provided with three connecting holes, the inner walls of the two fourth semicircular rings are each provided with three trapezoidal grooves, and one end face of the two fourth semicircular rings is each provided with a plurality of trapezoidal grooves, and the trapezoidal grooves match the movable grooves.

[0013] The utility model is further configured that the clamping assembly comprises an arc-shaped clamping block slidably arranged inside the movable groove, and the arc-shaped clamping block is L-shaped.

[0014] Two symmetrical connecting rods are fixed to the outer wall of the arc-shaped block, and two springs are respectively sleeved and fitted on the peripheral sides of the two connecting rods. A pull plate is commonly connected and fixed to one end of the two connecting rods, and one end of the two springs is respectively fixedly connected to the inner walls of the two sliding holes.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model has a sealing ring movably embedded at one end of the fixed base, which prevents harmful smoke from leaking from the contact surface between the fixed base and the hydraulic base, and the first inner fixed ring, the second inner fixed ring, the fixed base and the outer fixing member are sequentially sleeved on the side surface of the sealing inner ring to ensure that the sealing inner ring is tightly sleeved on the pull rod, effectively preventing harmful smoke in the rotary kiln from leaking from the contact surface between the sealing inner ring and the push rod.

[0017] 2. The utility model controls the card block to be inserted into or removed from the trapezoidal card slot of the external fixing member by pulling the pull piece on the side surface of the fixed base, so as to connect and separate the fixed base and the external fixing member, and the external fixing member, the first internal fixing ring, the second internal fixing ring and the sealing inner ring are all composed of two semicircular rings, thereby realizing the rapid replacement of the sealing inner ring.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The present invention is a three-dimensional structural schematic diagram of a push rod sealing device of a lime rotary kiln.

[0021] Figure 2 It is a cross-sectional view of the sealing component and the clamping component.

[0022] Figure 3 An exploded view of the seal assembly.

[0023] Figure 4 A cross-sectional view of the fixed base.

[0024] Figure 5 It is a schematic diagram of the structure of the inner fixing ring.

[0025] Figure 6 A cross-sectional view of an external fixing member.

[0026] Figure 7 It is a structural schematic diagram of the card connection component.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Push rod; 2. Sealing assembly; 201. Fixed base; 202. First inner fixing ring; 203. Sealing inner ring; 204. External fixing piece; 205. Sealing ring; 206. Countersunk hole; 207. Connecting hole 1; 208. Sealing groove; 209. Trapezoidal groove 1; 210. Movable groove; 211. Limiting block; 212. Sliding hole; 213. Connecting hole 2; 214. Mounting groove; 215. Trapezoidal groove 2; 216. Connecting hole 3; 217. Trapezoidal groove 3; 218. Trapezoidal slot; 219. Second inner fixing ring; 220. First semicircular ring; 221. Second semicircular ring; 222. Third semicircular ring; 223. Fourth semicircular ring; 3. Clamping assembly; 301. Arc-shaped clamping block; 302. Connecting rod; 303. Spring; 304. Pull plate; 4. Hydraulic base. DETAILED DESCRIPTION

[0029] 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 of 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. Specific embodiment 1

[0031] See also Figure 1-3 The utility model is a push rod sealing device for a lime rotary kiln, comprising a push rod 1, a sealing assembly 2, a clamping assembly 3 and a hydraulic base 4. The sealing assembly 2 comprises a fixed base 201 fixedly connected to the outer side of the hydraulic base 4, a sealing ring 205 is movably embedded at one end of the fixed base 201, a first inner fixing ring 202 is clamped and matched inside the fixed base 201, a sealing inner ring 203 is clamped and matched inside the first inner fixing ring 202, the sealing inner ring 203 is movably sleeved on the side surface of the push rod 1, a second inner fixing ring 219 is sleeved at one end of the sealing inner ring 203 away from the fixed base 201, an external fixing member 204 is sleeved on the side surface of the second inner fixing ring 219 relative to the other end surface of the fixed base 201, and the fixed base 201 and the external fixing member 204 are movably clamped through the clamping assembly 3.

[0032] The operation process of this embodiment is: by sequentially sleeve-fitting the first inner fixed ring 202, the second inner fixed ring 219, the fixed base 201 and the outer fixing member 204 on the circumferential side of the sealing inner ring 203, it is ensured that the sealing inner ring 203 is tightly and movably sleeved on the push rod 1, thereby effectively preventing the harmful flue gas in the rotary kiln from leaking from the contact surface between the sealing inner ring 203 and the push rod 1. Specific embodiment 2

[0034] See also Figure 1-6The fixed base 201 is composed of two symmetrical first semicircular rings 220, and a connecting hole 207 is opened at the connection of the two first semicircular rings 220. A plurality of countersunk holes 206 are penetrated on the other end surface of the fixed base 201. A sealing groove 208 is opened on one side of the fixed base 201, and the sealing groove 208 matches the sealing ring 205. A trapezoidal groove 209 is opened on the inner wall of the fixed base 201. A plurality of movable grooves 210 are opened on the opposite side of the fixed base 201. A limited block 211 is fixed on the inner wall of the movable groove 210. Sliding holes 212 are opened on both sides of the inner wall of the movable groove 210 away from the limited block 211. The first inner fixed ring 202 is composed of two second semicircular rings 221, and a connecting hole 207 is opened at the connection of the two second semicircular rings 221. Two groups of connecting holes 213, two symmetrical mounting grooves 214 are provided at one end of a second semicircular ring 221, a trapezoidal groove 215 is provided inside the first inner fixed ring 202, the sealing inner ring 203 includes two third semicircular rings 222 that are engaged with each other, the two third semicircular rings 222 are respectively engaged with the trapezoidal groove 1 209 of the first inner fixed ring 202 and the second inner fixed ring 219, the external fixing member 204 includes two symmetrical fourth semicircular rings 223, the outer walls of the two fourth semicircular rings 223 are provided with connecting holes 3 216, the inner walls of the two fourth semicircular rings 223 are provided with trapezoidal grooves 3 217, and one end surface of the two fourth semicircular rings 223 is provided with a plurality of trapezoidal grooves 218, and the trapezoidal grooves 218 match the movable grooves 210.

[0035] The operation process of this embodiment is as follows: first, the fixed base 201 is fixed to the hydraulic base 4 by passing bolts through the countersunk holes 206, and the sealing ring 205 is used to prevent smoke from leaking from the contact surface between the fixed base 201 and the hydraulic base 4, the first inner fixing ring 202 is inserted into the trapezoidal groove 1 209, and then the sealing inner ring 203 is inserted into the trapezoidal groove 215, and finally the second inner fixing ring 219 and the outer fixing member 204 are sequentially sleeved to achieve sealing of the push rod 1 and prevent leakage of harmful smoke. Specific embodiment three

[0037] See also Figure 2-7 The clamping assembly 3 includes an arc-shaped clamping block 301 slidably arranged inside the movable groove 210, and the arc-shaped clamping block 301 is L-shaped; two symmetrical connecting rods 302 are fixed to the outer wall of the arc-shaped clamping block 301, and two springs 303 are fixed to the outer wall of the arc-shaped clamping block 301, which are respectively sleeved and matched on the side surfaces of the two connecting rods 302. One end of the two connecting rods 302 is commonly connected and fixed with a pull plate 304, and one end of the two springs 303 is respectively fixedly connected to the inner walls of the two sliding holes 212.

[0038] The operation process of this embodiment is as follows: when installing the external fixing member 204, pull the pull plate 304 to move the arc block 301 in the pulling direction. At this time, the spring 303 is compressed, and then the entrance of the trapezoidal slot 218 on the front side of the external fixing member 204 is aligned with the arc block 301 and pushed forward. When the two sides of the external fixing member 204 overlap with the fixed base 201, release the pull plate 304 to allow the spring 303 to rebound and drive the arc block 301 to be stuck in the trapezoidal slot 218, so that the external fixing member 204 is fixed.

[0039] The operation process of this embodiment is as follows:

[0040] During installation, the sealing ring 205 is embedded in the sealing groove 208, the fixed base 201 is fixed to the hydraulic base 4 by passing the bolts through the countersunk holes 206, the bolts are passed through the connecting holes 1 207 to fix the two first semicircular rings 220 constituting the fixed base 201, and the clamping assembly 3 is installed at the movable groove 210, the bolts are passed through the connecting holes 213 to fix the two second semicircular rings 221 constituting the first inner fixing ring 202, the first inner fixing ring 202 is clamped into the trapezoidal groove 1 209, the sealing inner ring 203 is clamped into the trapezoidal groove 215, and the second inner fixing ring 2 After 19 is sleeved on the side surface of the sealing inner ring 203, the pull plate 304 is pulled to make the arc block 301 move in the pulling direction. At this time, the spring 303 is compressed, and the entrance of the trapezoidal slot 218 on the front side of the external fixing member 204 is aligned with the arc block 301 and pushed. The two sides of the external fixing member 204 and the fixed base 201 overlap, and then the pull plate 304 is released to make the spring 303 rebound and drive the arc block 301 to be stuck in the trapezoidal slot 218, so that the external fixing member 204 is fixed, and the bolts are passed through the connecting hole three 216 to fix the two fourth semicircular rings 223 that constitute the external fixing member 204.

[0041] When the sealing inner ring 203 needs to be replaced, first remove the bolts at the third connecting hole 216, pull the pull plate 304 to remove the two fourth semicircular rings 223 of the external fixing member 204 in turn, then remove the bolts at the second connecting hole 213, take out the second inner fixing ring 219 sleeved on the sealing inner ring 203, and then pull the sealing inner ring 203 out of the trapezoidal groove 215 to replace the new sealing inner ring 203.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A push rod sealing device for a lime rotary kiln, comprising a push rod (1), a sealing assembly (2), a clamping assembly (3) and a hydraulic base (4); characterized in that: The sealing assembly (2) comprises a fixed base (201) fixedly connected to the outer side of the hydraulic base (4), a sealing ring (205) is movably embedded at one end of the fixed base (201), a first inner fixed ring (202) is snap-fitted inside the fixed base (201), a sealing inner ring (203) is snap-fitted inside the first inner fixed ring (202), and the sealing inner ring (203) is movably sleeved on the peripheral side of the push rod (1); One end of the sealing inner ring (203) away from the fixed base (201) is sleeved with a second inner fixed ring (219); the other end face of the fixed base (201) is sleeved with an outer fixing member (204) located on the circumferential side of the second inner fixed ring (219); the fixed base (201) and the outer fixing member (204) are movably clamped together via a clamping assembly (3).

2. A lime rotary kiln push rod sealing device according to claim 1, characterized in that: The fixed base (201) is composed of two symmetrical first semicircular rings (220), a connecting hole (207) is provided at the connection between the two first semicircular rings (220), a plurality of countersunk holes (206) are provided through the other end surface of the fixed base (201), a sealing groove (208) is provided on one side surface of the fixed base (201), the sealing groove (208) matches the sealing ring (205), and a trapezoidal groove (209) is provided on the inner wall of the fixed base (201).

3. A lime rotary kiln push rod sealing device according to claim 2, characterized in that: The fixed base (201) is provided with a plurality of movable grooves (210) on one side thereof, a limiting block (211) is fixed on the inner wall of the movable groove (210), and sliding holes (212) are provided on both sides of the inner wall of the movable groove (210) away from the limiting block (211).

4. A lime rotary kiln push rod sealing device according to claim 3, characterized in that: The first inner fixing ring (202) is composed of two second semicircular rings (221), two groups of connecting holes (213) are provided at the connection of the two second semicircular rings (221), two symmetrical mounting grooves (214) are provided at one end of the second semicircular ring (221), and the first inner fixing ring (202) is provided with two trapezoidal grooves (215) inside.

5. A lime rotary kiln push rod sealing device according to claim 4, characterized in that: The sealing inner ring (203) comprises two third semicircular rings (222) that are engaged with each other, and the two third semicircular rings (222) are respectively engaged with the trapezoidal groove 1 (209) of the first inner fixing ring (202) and the second inner fixing ring (219).

6. A lime rotary kiln push rod sealing device according to claim 5, characterized in that: The external fixing member (204) comprises two symmetrical fourth semicircular rings (223), the outer walls of the two fourth semicircular rings (223) are each provided with a connecting hole three (216), the inner walls of the two fourth semicircular rings (223) are each provided with a trapezoidal groove three (217), and one end surface of the two fourth semicircular rings (223) is each provided with a plurality of trapezoidal grooves (218), and the trapezoidal grooves (218) match the movable grooves (210).

7. A lime rotary kiln push rod sealing device according to claim 6, characterized in that: The clamping assembly (3) comprises an arc-shaped clamping block (301) slidably arranged inside the movable groove (210), and the arc-shaped clamping block (301) is L-shaped; Two symmetrical connecting rods (302) are fixed to the outer wall of the arc-shaped clamping block (301), and two springs (303) are respectively sleeved and matched on the peripheral sides of the two connecting rods (302) are fixed to the outer wall of the arc-shaped clamping block (301). A pull plate (304) is commonly connected and fixed to one end of the two connecting rods (302), and one end of the two springs (303) is respectively fixedly connected to the inner walls of the two sliding holes (212).

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