Slide block guide device for bottom cover machine

Abstract

The utility model relates to the field of coke tower bottom cover machines, in particular to a sliding block guide device for a bottom cover machine, and aims to solve the problems of long cover closing time, low efficiency and inaccurate positioning in the alignment process of a flange cover and a feeding nipple in the prior art. The device comprises a plurality of sliding block assemblies, a positioning sleeve assembly and a positioning supporting rod assembly. The sliding block assembly is fixed to the supporting base and connected with the flange cover and comprises a self-lubricating thrust washer, a fixing bolt, a through hole and a dustproof washer, and the flange cover is allowed to move in the horizontal plane. The positioning sleeve assembly is arranged on the periphery of the feeding nipple and composed of a conical sheath, a fixing block and a limiting block, and stable installation is ensured. The positioning supporting rod assembly is fixed to the periphery of the flange cover and provides movement allowance and protects the power assembly. By means of the design, the flange cover can be automatically corrected to the concentric position even if deviation exists when the flange cover is closed, and it is guaranteed that when the coke tower and the feeding short section deviate from the initial position, the bottom cover machine cover closing can still be completed.

Description

A slider guide device for a bottom cover machine Technical Field

[0001] This utility model relates to the field of coke tower bottom cover machines, specifically to a slider guide mechanism for bottom cover machines. Background Technology

[0002] In the metallurgical industry, bottom cover machines in delayed coking units have been widely used throughout the country. Currently, the flange cover and feed section of these machines are aligned manually by adjusting the connecting bolts on the lower frame. Manual adjustment has significant drawbacks, including long closing time, high workload, and low efficiency.

[0003] In the prior art, Chinese utility model patent application number 201921664045.3 proposes an automatic bottom cover machine for delayed coking towers. This utility model patent achieves bottom cover closure to a certain extent by designing a hydraulic bolt assembly. However, this technical solution still has technical drawbacks. During the guiding process, the flange cover on the bottom cover machine is positioned only by the hydraulic bolt assembly. When the positioning section is misaligned, the studs of the hydraulic bolts and the bolt holes of the feed section above cannot be aligned, resulting in the inability to close the cover properly. Consequently, the refinery's production process cannot continue to the next step. At the same time, it causes the hydraulic bolt assembly to be overloaded. If the cover is forcibly closed, the overall mechanical structure is prone to damage.

[0004] The market urgently needs a technical solution that can effectively correct the orientation of a misaligned flange cover and feed section without damaging the mechanical structure. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model proposes a slider guide device for a bottom cover machine, which effectively reduces the workload of on-site workers, shortens the closing time, and improves the closing efficiency.

[0006] The technical solution adopted by this utility model is: a slider guide device for a bottom cover machine, comprising several slider assemblies, a positioning sleeve assembly, and a positioning support rod assembly. The slider assembly is fixed on a support base and connected to a flange cover. The slider assembly includes a self-lubricating thrust washer, a fixing bolt, and a through hole. The through hole is located on the support base and its diameter is larger than that of the fixing bolt. The through hole allows the fixing bolt to move the flange cover on a horizontal plane. The fixing bolt passes through the through hole to connect the support base and the flange cover. The positioning sleeve assembly is located on the outer circumferential surface of the feed section. The positioning support rod assembly is fixed on the outer circumferential surface of the flange cover and corresponds to the positioning sleeve assembly.

[0007] As a preferred embodiment, the slider assembly is further provided with a dustproof gasket, which is mounted on the lower surface of the through hole by fixing bolts.

[0008] Furthermore, there is a gap between the dustproof pad and the through hole.

[0009] As a preferred embodiment, a sliding auxiliary structure corresponding to the slider assembly is also provided below the flange cover. The sliding auxiliary structure consists of several arc-shaped plate components fixed to the bottom of the flange cover, which together form a ring-shaped structure.

[0010] As a preferred embodiment, the positioning sleeve assembly includes a conical sleeve, a fixing block, and fixing bolts. The feed section is provided with a first mounting hole for installing the positioning sleeve assembly. The fixing block is installed in the mounting hole, and the conical sleeve is installed in the fixing block by bolts. A limiting block for restricting the rotation of the conical sleeve is also provided below the conical sleeve.

[0011] As a preferred embodiment, the positioning strut assembly includes a support rod, a power assembly, and bolts mounted on the power assembly. The flange cover has a second mounting hole for mounting the positioning strut assembly. The support rod is bolted to the power end of the power assembly. The power assembly is located below the flange cover, and its power end passes through the second mounting hole. A guide sleeve is also provided between the power end of the power assembly and the second mounting hole to provide a range of motion for the positioning strut assembly.

[0012] Furthermore, the support rod has a lower hardness than the conical sleeve to ensure that the positioning sleeve assembly is more durable.

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

[0014] To address the shortcomings of existing technologies, this utility model provides a slider guide device for a bottom cover machine. Through optimized structural design, this utility model achieves the following technical effects:

[0015] Firstly, this invention introduces several slider assemblies, positioning sleeve assemblies, and positioning strut assemblies. The slider assemblies are fixed to the support base and connected to the flange cover. A corresponding sliding auxiliary structure is provided below the flange cover. The positioning sleeve assemblies and positioning strut assemblies are respectively positioned on the outer circumferential surfaces of the feed section and the flange cover. A guiding mechanism causes the center of the flange cover to overlap with the center of the feed section, achieving automatic correction when the flange cover deviates from the feed section above it in a 360° circumferential direction during the closing process. This ensures that when the coke tower and the feed section deviate from their initial positions, the flange cover and the feed section remain concentric, and the closing action is completed normally.

[0016] Secondly, in this utility model, the slider assembly incorporates a self-lubricating thrust washer, a fixing bolt, a through hole, and a dustproof washer. The diameter of the through hole is larger than that of the fixing bolt. This design ensures that the slider mechanism can drive the flange cover to move parallel in a 360° circumference.

[0017] Thirdly, an arc-shaped metal sliding auxiliary structure is provided above the self-lubricating thrust washer. This structure, in conjunction with the self-lubricating thrust washer, can effectively reduce the friction coefficient between the flange cover and the support seat, allowing the flange cover to move faster and more easily under the positioning and driving of the guide assembly.

[0018] Fourth, a guide sleeve is added between the power end of the power component and the second mounting hole in this utility model, which provides the necessary range of motion for the positioning support rod assembly. This structure ensures that the positioning support rod assembly can move freely within a certain range, enhancing its flexibility, while also protecting the power component from excessive stress and extending the service life of the entire assembly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the structure of this utility model;

[0021] Figure 2 is a schematic diagram of the slider assembly;

[0022] Figure 3 is a structural schematic diagram of the positioning sleeve assembly and the positioning strut assembly;

[0023] Figure 4 is a view of the positioning sleeve assembly from direction A;

[0024] Figure 5 is a schematic diagram of the sliding auxiliary structure;

[0025] Figure 6 is a schematic diagram showing the positions of the slider assembly, positioning sleeve assembly, and sliding auxiliary structure on the support base;

[0026] In the diagram: 1. Flange cover; 2. Feed section; 3. Slider assembly; 301. Self-lubricating thrust washer; 302. Fixing bolt; 303. Through hole; 304. Dustproof gasket; 4. Sliding auxiliary structure; 5. Positioning sleeve assembly; 501. Conical sleeve; 502. Fixing block; 503. Fixing bolt; 504. Limiting block; 6. Positioning strut assembly; 601. Support rod; 602. Power assembly; 603. Bolt; 604. Guide sleeve; 7. Lifting cylinder; 8. Support base. Detailed Implementation

[0027] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," etc., used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one; terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0029] To more clearly describe the specific structural components of the slider guide device for the bottom cover machine, this embodiment is described in conjunction with Figures 1-6:

[0030] This utility model provides a slider guide device for a bottom cover machine, which includes four sets of slider assemblies 3, eight sets of positioning sleeve assemblies 5 and eight sets of corresponding positioning support rod assemblies 6. The four sets of slider assemblies are circumferentially distributed on the lower surface of the flange cover 1. One set of positioning sleeve assemblies 5 and one set of positioning support rod assemblies 6 together constitute one set of guide assemblies. One set of guide assemblies is provided on both sides of one set of slider assemblies. The top rod of the lifting cylinder 7 used to support the flange cover is located at the center of the flange cover. The slider assembly and the guide assembly are located on the outer vertical sectional surface of the flange cover.

[0031] In this embodiment, the slider assembly 3 is fixed on the support base 8 and connected to the flange cover 1. A sliding auxiliary structure 4, which cooperates with the slider assembly 3, is provided below the flange cover 1. The guide assembly consists of a positioning sleeve assembly 5 and a positioning support rod assembly 6, respectively positioned on the outer circumferential surface of the feed section 2 and the outer circumferential surface of the flange cover 1. This design enables the flange cover 1 to automatically correct itself to a concentric position with the feed section 2 even if there is a 360° circumferential offset during the closing process. This ensures that even when the coke tower and the feed section 2 deviate from their initial positions, the flange cover 1 can still smoothly dock with the feed section 2, ensuring the smooth completion of the closing action. This significantly improves the closing efficiency and reduces the workload of the workers.

[0032] Furthermore, the slider assembly 3 in this embodiment consists of a self-lubricating thrust washer 301, a fixing bolt 302, a through hole 303, and a dustproof gasket 304. The fixing bolt 302 passes through the dustproof gasket 304, the through hole 303, and the sliding auxiliary structure 4 from bottom to top, firmly connecting the support seat and the flange cover 1. The through hole 303 is located on the support seat 8 and has a diameter larger than that of the fixing bolt 302. The diameter of the through hole 303 is 60 mm, and the diameter of the middle smooth section of the fixing bolt is 20 mm, to ensure that the flange cover can move parallel in a 360° circumferential direction. The self-lubricating thrust washer 301 is located on the upper surface of the through hole 303 and corresponds to the sliding auxiliary structure 4, ensuring that the slider assembly 3 can drive the flange cover 1 to move parallel in a 360° circumferential direction. In addition, there is at least a 2 mm gap between the dustproof gasket 304 and the through hole 303. Under the action of gravity, the dustproof gasket 304 does not directly contact the support seat 8, which further reduces friction during the movement of the flange cover.

[0033] In this embodiment, the sliding auxiliary structure 4 consists of four arc-shaped metal plates fixed to the bottom of the flange seat. Specifically, these are parts cut and precision ground from 20Cr13 steel plates, resulting in four steel ring gaskets. One side has a surface roughness of 0.4, and the other side has a surface roughness of 6.3. These arc-shaped metal plates, combined with the self-lubricating thrust washer 301, effectively reduce the coefficient of friction between the flange cover 1 and the support seat 8. This allows the flange cover 1 to move faster and more easily under the positioning action of the guide assembly, enhancing the adaptability of the entire system and improving operational safety and reliability. The segmented design of the sliding auxiliary structure 4 ensures that even with certain errors during installation, it can still be installed on the lower surface of the flange cover 1.

[0034] In this embodiment, the positioning sleeve assembly 5 includes a conical sleeve 501, a fixing block 502, and fixing bolts 503, and is installed in the first mounting hole of the feed section 2. The conical sleeve 501 is fixed in the fixing block 502 by bolts, and a limiting block 504 is provided below the conical sleeve 501 to limit its rotation. This design ensures the stable installation and accurate positioning of the positioning sleeve assembly 5, avoids positioning errors caused by the rotation of the conical sleeve 501, ensures the correct alignment between the flange cover 1 and the feed section 2, and improves the accuracy and stability during the closing process.

[0035] In this embodiment, the positioning strut assembly 6 includes a support rod 601, a power assembly 602, and a bolt 603 disposed above the power end of the power assembly. The flange cover 1 has a second mounting hole for mounting the positioning strut assembly 6. The support rod 601 is connected to the power end of the power assembly 602 via the bolt 603, ensuring that the support rod can be easily and quickly replaced if damaged. The power assembly 602 is disposed below the flange cover 1, and its power end passes through the second mounting hole.

[0036] Furthermore, a guide sleeve 604 is added between the power end of the power assembly 602 and the second mounting hole, providing necessary room for movement for the positioning strut assembly 6. This structure ensures that the positioning strut assembly 6 can move freely within a certain range, enhancing its flexibility, protecting the power assembly 602 from excessive stress, and extending the service life of the entire assembly. At the same time, the flexible connection method reduces the risk of damage that may result from rigid contact, ensuring smooth operation of the bottom cover machine.

[0037] Furthermore, in this embodiment, the hardness of the support rod 601 is less than that of the conical sleeve 501, to ensure that the positioning sleeve assembly 5 is more durable. When the support rod 601 is damaged after long-term use, it can be reused simply by unscrewing the old support rod 601 and replacing it with a new one.

[0038] During operation, firstly, the piston rod of the lifting cylinder is extended to its maximum length. Then, as the piston rod of the lifting cylinder of the bottom cover machine extends upward, pushing the flange cover 1 upward, the support rod 601 of the positioning support rod assembly 6 above the lifting cylinder contacts the conical surface of the conical sleeve 501. At this time, if the centers of the support rod 601 and the conical sleeve 501 are not concentric, the flange cover 1 and the sliding auxiliary structure 4 will slide freely horizontally in a 360° circumferential direction on the self-lubricating thrust washer 301 of the support seat 8. Through the combined action of the slider assembly 3, the positioning support rod assembly 6, and the positioning sleeve assembly 5, the flange cover 1 moves parallel in a 360° circumferential direction, thereby gradually adjusting the centers of the support rod 601 and the conical sleeve 501 to be concentric during the upward movement of the flange cover 1. Finally, the flange cover 1 and the feed section 2 are made concentric.

[0039] It should be noted that although the present invention has been described through the above embodiments, there may be other various embodiments of the present invention. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A slider guide device for a bottom cover machine, characterized in that, The device includes several slider assemblies (3), positioning sleeve assemblies (5), and positioning strut assemblies (6). The slider assemblies (3) are fixed on the support base (8) and connected to the flange cover (1). The slider assembly (3) includes a self-lubricating thrust washer (301), a fixing bolt (302), and a through hole (303). The through hole (303) is located on the support base (8) and its diameter is larger than that of the fixing bolt (302). The fixing bolt (302) passes through the through hole (303) to connect the support base (8) and the flange cover (1). The positioning sleeve assembly (5) is located on the outer circumferential surface of the feed section (2). The positioning strut assembly (6) is fixed on the outer circumferential surface of the flange cover (1) and corresponds to the positioning sleeve assembly (5).

2. The slider guide device for a bottom cover machine according to claim 1, characterized in that, The slider assembly (3) is also provided with a dustproof pad (304), which is set on the lower surface of the through hole (302) by a fixing bolt (302).

3. A slider guide device for a bottom cover machine according to claim 2, characterized in that, There is a gap between the dustproof pad (304) and the through hole (303).

4. A slider guide device for a bottom cover machine according to claim 1, characterized in that, Below the flange cover (1) is a sliding auxiliary structure (4) corresponding to the slider assembly (3).

5. A slider guide device for a bottom cover machine according to claim 4, characterized in that, The sliding auxiliary structure (4) consists of several arc-shaped components fixed to the bottom of the flange cover (1), which together form a ring structure.

6. A slider guide device for a bottom cover machine according to claim 1, characterized in that, The positioning sleeve assembly (5) includes a conical sleeve (501), a fixing block (502) and a fixing bolt (503). The feed section (2) is provided with a first mounting hole for installing the positioning sleeve assembly (5). The fixing block (502) is installed in the mounting hole, and the conical sleeve (501) is installed in the fixing block (502) by bolts.

7. A slider guide device for a bottom cover machine according to claim 6, characterized in that, Below the conical sleeve (501), there is also a limiting block (504) for limiting the rotation of the conical sleeve (501).

8. A slider guide device for a bottom cover machine according to claim 1, characterized in that, The positioning strut assembly (6) includes a support rod (601), a power assembly (602), and a bolt (603) installed above the power assembly (602). The flange cover (1) is provided with a second mounting hole for installing the positioning strut assembly (6). The support rod (601) is set at the power end of the power assembly (602) by the bolt (603). The power assembly (602) is set below the flange cover (1) and its power end passes through the second mounting hole.

9. A slider guide device for a bottom cover machine according to claim 8, characterized in that, A guide sleeve (604) for providing a range of motion for the positioning strut assembly (6) is also provided between the power end of the power assembly (602) and the second mounting hole.

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