A compression auxiliary device for coke oven draw spring
By using a clamping auxiliary device in the coke oven tie spring, and utilizing jacks and channel steel supports to achieve automatic adjustment of the nut, the problems of low adjustment efficiency and equipment wear are solved, thereby improving the adjustment efficiency of the coke oven tie spring and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOYE ENG TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-07
AI Technical Summary
In the existing technology, the adjustment efficiency of coke oven pull springs is low, the adjustment length is limited, and manual operation leads to high costs of vulnerable parts.
A clamping auxiliary device is adopted, which uses a jack instead of an electric wrench. The spring cover is driven by the channel steel bracket and the jack to form an adjustment gap, thereby realizing the automatic adjustment of the nut and avoiding the wear and tear of manual operation.
It improves adjustment efficiency, meets arbitrary length adjustment requirements, reduces wear and tear on vulnerable parts and labor costs, and ensures installation accuracy and stability.
Smart Images
Figure CN224464609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coke oven tie spring pressing technology, and in particular to a pressing auxiliary device for coke oven tie springs. Background Technology
[0002] Coke oven tie springs are key components in the coke oven structure. They are mainly used to maintain the tightness of the oven body masonry, compensate for the stress generated by the expansion of the oven body under hot conditions, and ensure the stability and sealing of the coke oven during long-term operation.
[0003] In coking engineering projects, manual tightening of the adjusting nut at the outer end of the spring cover of the coke oven pull bar is usually done using adjustable wrenches or electric wrenches. This is time-consuming, labor-intensive, and inefficient. Furthermore, electric wrenches are limited by the length of the pull bar screw and cannot meet the requirements for adjusting to any length. The wear caused to the spring cover by the adjusting nut when tightening with manual adjustable wrenches or electric wrenches reduces the cost of vulnerable parts of the equipment.
[0004] Therefore, in order to solve the above problems, this utility model proposes a clamping auxiliary device for coke oven tie springs that can improve adjustment efficiency, avoid adjustment length limitations, and reduce the cost of vulnerable parts of the equipment. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides a clamping auxiliary device for coke oven tie springs.
[0006] According to one objective of this utility model, this utility model provides a clamping auxiliary device for a coke oven pull spring, with a pre-tightening side and a top-pressure side on two sides in the horizontal direction, respectively. The clamping auxiliary device includes a pull spring and a screw arranged sequentially between the pre-tightening side and the top-pressure side in the horizontal direction. A pull spring is sleeved on the outer side of the pull spring, and a spring cover is provided at the end of the pull spring on the pre-tightening side. The center of the spring cover is movably sleeved on the outer side of the screw. An adjusting nut is provided on the outer side of the screw, and the adjusting nut is located on the pre-tightening side of the spring cover. The clamping auxiliary device further includes:
[0007] A bracket is configured to be movably fitted onto the outside of the screw through a through hole. An installation gap is provided between the top pressing side of the bracket and the pre-tightening side of the spring cover. A jack is provided on the inner side of the installation gap. The two ends of the jack are detachably connected to the top pressing side of the bracket and the pre-tightening side of the spring cover, respectively. A pre-tightening nut is provided on the pre-tightening side of the bracket. The pre-tightening nut is screwed onto the outside of the screw, and the pre-tightening nut and the pre-tightening side of the bracket abut against each other.
[0008] The jack is configured to drive the spring cover toward the top pressure side to form an adjustment gap between the spring cover and the adjusting nut, allowing the adjusting nut to move.
[0009] Preferably, the support is a channel steel support.
[0010] Preferably, an arc-shaped support plate is fixed to the top pressure side of the bracket, and the jack is disposed on the inner side of the arc-shaped support plate, with the arc-shaped support plate supporting and connecting the jack in the vertical direction.
[0011] Preferably, there are multiple jacks, and the arc-shaped support plate corresponds one-to-one with the jacks. The jacks are arranged on both sides of the screw in the radial direction, and the jacks are configured to synchronously press the spring cover.
[0012] Preferably, the number of jacks is two, and the jacks are arranged symmetrically about the screw.
[0013] Preferably, the jack is a thin jack.
[0014] Preferably, the clamping auxiliary device further includes a washer disposed between the preload nut and the bracket.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] Compared with the traditional manual operation using a wrench, the tightening auxiliary device for the coke oven pull bar spring improves the efficiency of the tightening process of the adjusting nut on the coke oven pull bar screw, ensures the installation accuracy of the device, reduces labor costs, and frees up labor.
[0017] By replacing electric wrenches with jacks, the length of the pull rod is not restricted, allowing for adjustments of any length. At the same time, it avoids the wear on the spring cap caused by the adjusting nut when tightening with a manual adjustable wrench or electric wrench, thus reducing the cost of vulnerable parts in the equipment.
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram from one perspective of the clamping auxiliary device for a coke oven tie spring according to the present invention;
[0020] Figure 2 This is a schematic diagram from another perspective of the clamping auxiliary device for a coke oven pull spring described in this utility model. Detailed Implementation
[0021] The following description is intended to provide a detailed account of the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0022] See Figure 1-2 This utility model provides a technical solution: a clamping auxiliary device for a coke oven pull spring, with a pre-tightening side A and a top-pressure side B on both sides in the horizontal direction. The clamping auxiliary device includes a pull bar 100 and a screw 200 arranged sequentially between the pre-tightening side A and the top-pressure side B in the horizontal direction. A pull spring 300 is sleeved on the outer side of the pull bar 100. A spring cover 400 is provided at the end of the pull spring 300 located on the pre-tightening side A. The center of the spring cover 400 is movably sleeved on the outer side of the screw 200. An adjusting nut 500 is provided on the outer side of the screw 200. The adjusting nut 500 is located on the pre-tightening side A of the spring cover 400.
[0023] The clamping auxiliary device is characterized in that it further includes:
[0024] A channel steel bracket 600 has a circular through hole. The channel steel is configured to be movably sleeved on the outside of the screw 200 through the through hole. An installation gap is reserved between the top pressing side B of the channel steel bracket 600 and the pre-tightening side A of the spring cover 400. A jack 700 is provided on the inner side of the installation gap. The two ends of the jack 700 are detachably connected to the top pressing side B of the channel steel bracket 600 and the pre-tightening side A of the spring cover 400, respectively. A pre-tightening nut 800 is provided on the pre-tightening side A of the channel steel bracket 600. The pre-tightening nut 800 is screwed to the outside of the screw 200, and the pre-tightening nut 800 and the pre-tightening side A of the channel steel bracket 600 abut against each other.
[0025] The jack 700 is configured to drive the spring cover 400 toward the top pressure side B, so as to form an adjustment gap between the spring cover 400 and the adjusting nut 500, allowing the adjusting nut 500 to move.
[0026] During assembly, the channel steel bracket 600 is first inserted through the through hole onto the outside of the screw 200. The jack 700 is placed between the pressing side B of the channel steel bracket 600 and the pre-tightening side A of the spring cover 400. The spring cover 400 is pre-tightened by the adjusting nut 500, and the channel steel bracket 600 is pre-tightened and fixed by the pre-tightening nut 800. During clamping, the jack 700 presses against the spring cover 400, and the spring is clamped by the pressing, so that an adjustment gap is formed between the adjusting nut 500 and the spring cover 400. The adjusting nut 500 is further adjusted to fit against the spring cover 400 and adjusted to the design required length. During unloading, the jack 700 is removed from the channel steel bracket 600 and the spring cover 400, the pre-tightening nut 800 is loosened, and the channel steel bracket 600 is removed from the screw 200 to complete the clamping work.
[0027] Compared with the traditional manual operation using a wrench, this clamping auxiliary device improves the efficiency of the tightening process of the adjusting nut on the coke oven tie rod, ensures the installation accuracy of the device, reduces labor costs, and frees up labor.
[0028] By replacing electric wrenches with jacks, the length of the pull rod is not restricted, allowing for adjustments of any length. At the same time, it avoids the wear on the spring cap caused by the adjusting nut when tightening with a manual adjustable wrench or electric wrench, thus reducing the cost of vulnerable parts in the equipment.
[0029] It should be noted that after unloading the thin jack 700 from the arc-shaped support plate 900, it is necessary to further observe whether the preload nut 800 on the outside of the pull spring 300 pressure cover has rebounded and whether it meets the requirements.
[0030] In this embodiment, an arc-shaped support plate 900 is welded and fixed to the top pressure side B of the channel steel bracket 600. The jack 700 is disposed on the inner side of the arc-shaped support plate 900. The arc-shaped support plate 900 supports and connects the jack 700 in the vertical direction. During assembly, the jack 700 can be directly placed on the inner side of the arc-shaped support plate 900 and positioned with the preload nut 800.
[0031] There are multiple jacks 700, and each arc-shaped support plate 900 corresponds to one jack 700. The jacks 700 are arranged on both sides of the screw 200 in the radial direction. The jacks 700 are configured to synchronously press the spring cover 400. Preferably, there are two jacks 700, which are symmetrically arranged about the screw 200. In use, the jacks 700 arranged on both sides of the screw 200 in the radial direction can synchronously press the spring cover 400, improving the stability and accuracy of adjustment.
[0032] Furthermore, the jack 700 is a thin jack 700.
[0033] Furthermore, the clamping auxiliary device also includes a washer 1000, which is disposed between the preload nut 800 and the channel steel bracket 600. In use, the channel steel bracket 600 is preloaded and fixed by the washer 1000 and the preload nut 800. The washer 1000 can increase the stability of the connection between the preload nut 800 and the channel steel bracket 600. During unloading, the thin jack 700 on the arc-shaped support plate 900 is removed, and the preload nut 800 and washer 1000 are removed, thereby realizing the removal of the channel steel bracket 600 from the tie rod 100 and screw 200.
[0034] How to use:
[0035] The channel steel bracket 600 is inserted into the pre-tightening side A of the spring cover 400 through the screw 200. The channel steel bracket 600 is close to the washer 1000 on the back side of the through hole, that is, the pre-tightening side A of the channel steel bracket 600. The washer 1000 is then put into the pre-tightening nut 800 and tightened.
[0036] An installation gap is reserved between the top pressing side B of the channel steel bracket 600 and the pre-tightening side A of the spring cover 400 for the installation of the thin jack 700. An adjusting nut 500 is screwed into the pre-tightening side A of the spring cover 400. After the thin jack 700 located on the two arc-shaped support plates 900 simultaneously presses the pull spring 300 to create an adjustment gap, the adjusting nut 500 is tightened.
[0037] Hydraulic cylinder 700 pressurizes the jack, causing it to extend from the arc-shaped support plate 900 of the channel steel bracket 600. This compresses the tie spring 300, creating the required adjustment gap. The adjusting nut 500 is then tightened to the designed tie rod 100 screw length position. Hydraulic cylinder 700 then unloads, removing the jack from the arc-shaped support plate 900 of the channel steel bracket 600. The pre-tightening nut 800 and washer 1000 on the pre-tightening side A of the channel steel bracket 600 are then loosened, and the channel steel bracket 600 is removed from the tie rod 100 stud, completing the clamping operation.
[0038] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.
Claims
1. A clamping auxiliary device for a coke oven pull spring, comprising a pre-tightening side (A) and a top-pressure side (B) on both sides in the horizontal direction, the clamping auxiliary device comprising a pull bar (100) and a screw (200) arranged sequentially between the pre-tightening side (A) and the top-pressure side (B) in the horizontal direction, a pull spring (300) sleeved on the outer side of the pull bar (100), a spring cap (400) provided at the end of the pull spring (300) on the pre-tightening side (A), the center of the spring cap (400) being movably sleeved on the outer side of the screw (200), an adjusting nut (500) provided on the outer side of the screw (200), the adjusting nut (500) being located on the pre-tightening side (A) of the spring cap (400), characterized in that, The clamping auxiliary device also includes: A bracket (600) is configured to be movably sleeved on the outside of the screw (200) through a through hole. An installation gap is reserved between the top pressing side (B) of the bracket (600) and the pre-tightening side (A) of the spring cover (400). A jack (700) is provided on the inner side of the installation gap. The two ends of the jack (700) are detachably connected to the top pressing side (B) of the bracket (600) and the pre-tightening side (A) of the spring cover (400), respectively. A pre-tightening nut (800) is provided on the pre-tightening side (A) of the bracket (600). The pre-tightening nut (800) is screwed to the outside of the screw (200), and the pre-tightening nut (800) and the pre-tightening side (A) of the bracket (600) abut against each other. The jack (700) is configured to drive the spring cover (400) toward the top pressure side (B) to form an adjustment gap between the spring cover (400) and the adjusting nut (500) for the adjusting nut (500) to move.
2. The clamping auxiliary device for a coke oven tie spring according to claim 1, characterized in that, The bracket (600) is a channel steel bracket.
3. The clamping auxiliary device for a coke oven tie spring according to claim 1, characterized in that, An arc-shaped support plate (900) is fixed on the top pressing side (B) of the bracket (600), and the jack (700) is disposed on the inner side of the arc-shaped support plate (900). The arc-shaped support plate (900) supports and connects the jack (700) in the vertical direction.
4. The clamping auxiliary device for a coke oven tie spring according to claim 3, characterized in that, There are multiple jacks (700), and the arc-shaped support plate (900) and the jacks (700) correspond one-to-one. The jacks (700) are arranged on both sides of the screw (200) in the radial direction. The jacks (700) are arranged to synchronously press the spring cover (400).
5. The clamping auxiliary device for a coke oven tie spring according to claim 4, characterized in that, The number of jacks (700) is two, and the jacks (700) are arranged symmetrically about the screw (200).
6. The clamping auxiliary device for a coke oven tie spring according to claim 1, characterized in that, The jack (700) is a thin jack.
7. The clamping auxiliary device for a coke oven tie spring according to claim 1, characterized in that, The clamping auxiliary device also includes a washer (1000), which is disposed between the preload nut (800) and the bracket (600).