Repair tool for scraping plate of cleaning chain of slag drying machine

Abstract

The utility model relates to a repairing tool for a scraping plate of a cleaning chain of a slag drying machine, which is characterized in that a top beam is a hooking beam with an opening in the inner side surface and is hooked on the scraping plate from the back side of the scraping plate; the upper end of the short beam is connected with the front side surface of the left end of the top beam; the bearing platform is fixedly connected to the lower end of the short beam and located on the same side of the top beam; the supporting device is fixed on the bearing platform, and a jacking head of the supporting device protrudes towards the direction of the top beam; and the other end of the connecting rod is connected with the short beam lower beam. According to the online repairing device, the online scraper is buckled through the top beam, the short beam and the bearing platform are used for supporting and range constraint, the bent end is pushed through the supporting device to be reset, online repairing of the scraper is achieved, a large amount of time is saved, and the downtime of the dry slag machine is greatly shortened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dry slag machine auxiliary tool technical field, concretely relates to a kind of repair tool of dry slag machine cleaning chain scraper. BACKGROUND

[0002] Coal-fired boiler slag removal system of thermal power plant is mostly dry slag removal machine, chain is used to drive scraper to move in slag removal machine, and the lower end of scraper drives furnace ash in ash pool to discharge.Scraper includes a long strip-shaped sheet, both ends are installed connector, middle part is welded angle steel to prevent deformation, and the connecting rod of both ends of scraper includes a horseshoe ring connected to transmission chain, the both ends of horseshoe ring are provided with connecting plate, and the end of scraper is clamped and fixed by two connecting plates and fixed by bolt, as both ends of scraper need to be installed connector, it is usually single plate structure, so that a weak stress point is formed at the end.

[0003] Scraper is driven by both ends of chain, both ends of chain will be worn after long-term operation, and stretch to be longer due to equipment, but the stretching degree of both chains is different, so the length change is often inconsistent, when the overall length of both chains is significantly different, it will cause scraper to tilt, and scraper is easy to deform when passing through the roller of chain, and the deformation position is mostly at the weak stress point position of above-mentioned end of scraper, and the end of scraper is bent.

[0004] Scraper deformation will inevitably lead to equipment cannot be used normally, and emergency repair is needed, and the repair method in prior art is that cleaning chain is pulled tightly by lifting chain, deformed scraper is removed, and after repair, it is reinstalled.The repair specifically refers to that the bent position of old scraper is restored straight by repeatedly hammering with hammer.Due to poor running environment of dry slag machine, such scraper damage occurs every quarter, and the number of straightened scraper is about 6-8 each time, and the removal, repair and reinstallation waste a lot of time, and dry slag machine is stopped for a long time. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems that scraper maintenance operation is complicated and downtime is long.

[0006] The utility model solves the technical problems, and the technical scheme is as follows:

[0007] A kind of repair tool of dry slag machine cleaning chain scraper, comprising:

[0008] Top beam, for the inside surface is the hooking beam of opening, it is hooked and buckled on scraper from the back side of scraper;

[0009] Short beam, it is vertically arranged with top beam, and the upper end is connected with the left end front side of top beam;

[0010] Pile cap, it is fixedly connected to the lower end of short beam and located on the same side of top beam;

[0011] Supporter, fixed on the bearing platform, the jacking head of the supporter protrudes towards the roof beam direction;

[0012] Connecting rod, one end is connected with the right end of the roof beam, and the other end is connected with the lower part of the short beam.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a top beam is buckled to the scraper on line, and the short beam and the bearing platform are used as support and range constraint, and the supporter is used for pushing the bent end to reset, realizes the on-line repair of the scraper, saves a large amount of time, and greatly shortens the downtime of the dry slag machine.

[0015] As preferred, the further technical scheme of the above structure is:

[0016] The side, away from the short beam, of the bearing platform is connected with a movable beam through a hinge, the inner side surface of the free end of the movable beam is fixedly connected with a clamping head, the rear side surface of the roof beam is provided with a clamping groove, and the clamping head is connected with the clamping groove.

[0017] The beneficial effects obtained from the above features are that: in this embodiment, the movable beam cooperates with the short beam to pull the bearing platform from both sides, thereby providing a stable support base for the supporter, and the movable beam is designed to rotate without affecting the installation of the roof beam on the scraper on line.

[0018] The clamping groove is a through-hole groove opened on the rear side plate of the roof beam, the clamping head is provided with a protruding rib matched with the clamping groove, the outer end of the protruding rib is provided with an embedding groove, a limiting spring is installed in the embedding groove, the limiting spring comprises a U-shaped connecting part buckled on the end of the protruding rib, an arch part connected to the inner end of the U-shaped connecting part, a fixed part connected to the inner part of the arch part, and the fixed part is bolted with the groove bottom of the embedding groove.

[0019] The beneficial effects obtained from the above features are that: this embodiment adopts a wide clamping structure to ensure that the movable beam node has reliable bearing force when the supporter pushes the bent part.

[0020] The clamping groove is a circular through-hole opened on the rear side plate of the roof beam, the clamping head is a shaft rod coaxially arranged with the rotating shaft, the outer end of the shaft rod is provided with a limiting spring, the middle part of the limiting spring is provided with an arch part, and the two ends are fixed with the shaft rod through screws.

[0021] The beneficial effects obtained from the above features are that: this embodiment has low installation perpendicularity requirement for the movable beam, is convenient to install, and has strong adjustability.

[0022] The short beam and the roof beam are welded and fixed, and the two ends of the connecting rod are bolted with the roof beam and the short beam, so as to form a stable triangular support structure.

[0023] The beneficial effects obtained from the above features are that: this embodiment is strong in stability.

[0024] The connecting rod is a turnbuckle, and the two ends of the connecting rod are connected to the top beam and the short beam by pins. The short beam and the top beam are connected by a rotating shaft, and the rotating shaft is equipped with a damping element to increase the rotational resistance.

[0025] The beneficial effects obtained from the above features are as follows: the jacking point of the support in this embodiment is adjustable, so the point of action on the scraper can be adjusted, and the point of action can be changed when jacking the bending point of the scraper.

[0026] The left end of the beam has a notch corresponding to the position above the support.

[0027] The beneficial effects obtained from the above features are: the notch in this embodiment allows the support to push the bent scraper end over, so that after the support retracts, the stress of the scraper is released and it returns to a straight state, and the notch structure enables faster repair.

[0028] A limiting pin is provided in the middle of the top beam to restrain the straight section of the scraper.

[0029] The beneficial effects obtained from the above features are: the limiting pin in this embodiment can constrain the straight section of the scraper, prevent the straight section from warping under force when the end is subjected to force, and avoid weakening the work of the support. Attached Figure Description

[0030] Figure 1 This is a basic structural diagram of the present invention;

[0031] Figure 2 This is a perspective view of the utility model;

[0032] Figure 3 This is a diagram of the lower end connection structure of the movable beam of this utility model;

[0033] Figure 4 This is a diagram of the upper connection structure of the movable beam in Embodiment 1 of this utility model;

[0034] Figure 5 This is an enlarged view of the upper structure of the movable beam in Embodiment 1 of this utility model;

[0035] Figure 6 This is a structural diagram of the upper end of the movable beam in Embodiment 2 of this utility model;

[0036] Figure 7 This is a schematic diagram illustrating how the change in the length of the connecting rod alters the pushing position of the support in Embodiment 2 of this utility model.

[0037] Figure 8 This is a diagram of an improved embodiment of the top beam of this utility model.

[0038] In the figure: 1, bearing platform; 2, support; 3, short beam; 4, top beam; 5, connecting rod; 6, movable beam; 7, clamping groove; 8, limit pin; 9, hinge; 10, clamping head; 101, embedding groove; 11, limit spring; 12, rotating shaft; 13, pin shaft; 14, notch. DETAILED DESCRIPTION

[0039] The utility model is further described below in combination with examples, and the purpose is only to better understand the content of the utility model, therefore, the example does not limit the protection scope of the utility model.

[0040] Referring to Figure 1 , Figure 2 The repair tool for the cleaning chain scraper of the dry slag machine comprises:

[0041] The top beam 4 is a hooking beam with an open inner side, which is hooked and buckled on the scraper from the back side of the scraper;

[0042] The short beam 3 is arranged perpendicularly to the top beam 4, and the upper end of the short beam 3 is connected to the left end of the top beam 4;

[0043] The bearing platform 1 is fixedly connected to the lower end of the short beam 3 and located on the same side of the top beam 4;

[0044] The support 2 is fixed on the bearing platform 1, and the jacking head of the support 2 protrudes towards the top beam 4;

[0045] The connecting rod 5 is connected to the right end of the top beam 4 at one end and connected to the lower beam of the short beam 3 at the other end.

[0046] Before the scraper is repaired on line by using the tool, the chain needs to be controlled to rotate reversely, so that the scraper moves from the inside of the dry slag machine to the tail roller, and the scraper is moved to the position of the side of the roller for the convenience of repair operation; first, the user can hold the short beam 3 and the connecting rod 5, the top beam 4 is stretched out towards the scraper and hooked on the scraper, and the open side of the top beam 4 faces the user; then the position of the tool is adjusted, so that the support 2 is aligned with the position that needs to be pushed; then the support 2 is operated to straighten the bent end of the scraper; finally, the support 2 is retracted, the top beam 4 is lifted, and the tool is taken out.

[0047] Further, the side, away from the short beam 3, of the bearing platform 1 is connected with the movable beam 6 through the hinge 9, the inner side of the free end of the movable beam 6 is fixedly connected with the clamping head 10, the rear side of the top beam 4 is provided with the clamping groove 7, the clamping head 10 is connected with the clamping groove 7, and the movable beam 6 cooperates with the short beam 3 to pull the bearing platform 1 from both sides, so as to provide a stable support base for the support 2, and the rotating design of the movable beam 6 does not affect the installation of the top beam 4 on the on-line scraper.

[0048] The utility model embodiment one:

[0049] The connection between the short beam 3 and the top beam 4 is arranged to be welded and fixed, and the two ends of the connecting rod 5 are bolted to the top beam 4 and the short beam 3, thereby forming a stable triangular support structure, and the full-welded fixing has high stability. In this embodiment, the movable plate only needs to meet the following conditions: the lower end can rotate, the user can conveniently operate the connection between the outer end of the movable plate and the top beam 4, and the upper end can be conveniently clamped to the top beam 4, and therefore, the connection structure example of the movable beam 6 and the top beam 4 is provided, which is shown in Figure 3 、 Figure 4 、 Figure 5 The clamping groove 7 is a through-hole groove formed on the rear side plate of the top beam 4, the clamping head 10 is provided with a protruding rib matched with the clamping groove 7, the outer end of the protruding rib is provided with an embedding groove 101, a limiting spring 11 is arranged in the embedding groove 101, the limiting spring 11 comprises a U-shaped connecting part buckled on the end of the protruding rib, an arch part connected to the inner end of the U-shaped connecting part, and a fixed part connected to the inner part of the arch part and bolted to the groove bottom of the embedding groove 101; the clamping groove 7 is a thin and narrow hole parallel to the top beam 4, the clamping head 10 is as wide as possible within the allowable range of the movable plate, so as to increase the node strength, and the outer end of the clamping head 10 is smaller than the clamping groove 7, so as to conveniently enter the clamping groove 7; when the limiting spring 11 passes through the clamping groove 7, the arch part is extruded, and is reset after moving to the inner wall of the clamping groove 7, so as to limit the outward movement of the upper end of the movable beam 6 due to gravity, and when the support 2 pushes the scraper during the scraping process, the clamping head 10 and the clamping groove 7 are vertically limited to each other; the connection structure has high limiting ability in the direction parallel to the short beam 3, and has weak limiting ability in the direction perpendicular to the short beam 3, because only the spring sheet is used for limiting, when the scraping is repaired, the movable beam 6 is moved from the lower end, and the upper end of the movable beam 6 can be separated from the clamping groove 7, so that the top beam 4 can be conveniently separated from the scraper.

[0050] The relatively wide and large clamping structure ensures that the support 2 has reliable bearing force of the node of the movable beam 6 when pushing the bent part.

[0051] Embodiment two of the utility model:

[0052] Referring to Figure 7 The connecting rod 5 is a basket bolt, the two ends of the connecting rod 5 are connected to the top beam 4 and the short beam 3 through a pin shaft 13, the short beam 3 is connected to the top beam 4 through a rotating shaft 12, a damping part is arranged on the rotating shaft 12 to increase the rotating resistance, and the pushing direction of the support 2 is adjustable, so that the support 2 can act on the scraper in multiple directions; the damping part can stabilize the short beam 3 when the short beam 3 is adjusted to be inclined.

[0053] In order to adapt to this embodiment, the connection structure of the movable beam 6 and the top beam 4 is adjusted and combined Figure 6 、 Figure 7The slot 7 is a circular through hole made on the rear side plate of the top beam 4. The clamp head 10 is a shaft rod coaxially set with the rotating shaft 12. A limiting spring 11 is installed on the outer end of the shaft rod. The limiting spring 11 has an arched part in the middle. Both ends are fixed to the shaft rod by screws. This connection structure can cooperate with the short beam 3 connected to the rotating shaft 12 to rotate together. At the same time, the clamp head 10 formed by the shaft rod has a low requirement for the verticality of the installation of the movable beam 6. Therefore, the installation of the movable beam 6 is relatively convenient. Similarly, it can limit the movement in the direction parallel to the short beam 3. The limiting force is weak in the direction perpendicular to the short beam 3, making it easy to release the movable beam 6. Therefore, it can also be used in Embodiment 1.

[0054] Optional, such as Figure 8 The left end of the beam is provided with a notch 14 above the support 2. The notch 14 allows the support 2 to push the bent scraper end. Therefore, the scraper usually deforms when under stress and has the same recovery effect after the stress is released. Similarly, the end can be over-stressed during repair so that it can return to straight after the stress is released. After the support 2 is retracted, the stress release of the scraper will still cause the end to be slightly bent. However, the notch 14 structure can achieve over-pushing, so the scraper repair speed will be faster.

[0055] Optional, such as Figure 2 The top beam 4 is provided with a limiting pin 8 in the middle, which is used to constrain the straight section of the scraper. The limiting pin 8 can constrain the straight section of the scraper to prevent the straight section from tilting back when it is subjected to force at the end, and to prevent the work of the support 2 from being weakened.

[0056] This utility model uses a top beam 4 to hold the scraper in place, a limiting pin 8 to fix the straight section of the scraper, a short beam 3 and a support platform 1 for support and range constraint, and a support device 2 to push the bent end back to its original position, thus realizing online repair of the scraper. This saves the work of disassembling and reassembling the scraper and greatly shortens the downtime of the dry slag machine.

[0057] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A repair tool for the cleaning chain scraper of a dry slag machine, characterized in that... ,include: The top beam (4) is a hook beam with an open inner side, which hooks onto the scraper from the back side of the scraper. The short beam (3) is set perpendicular to the top beam (4), and its upper end is connected to the front side of the left end of the top beam (4); The foundation (1) is fixed to the lower end of the short beam (3) and located on the same side as the top beam (4); Support (2) is fixed on the support platform (1), and the lifting head of support (2) protrudes towards the top beam (4); The connecting rod (5) is connected at one end to the right end of the top beam (4) and at the other end to the lower part of the short beam (3).

2. The repair tool for the cleaning chain scraper of the dry slag machine according to claim 1, characterized in that: The side of the foundation (1) away from the short beam (3) is connected to a movable beam (6) by a hinge (9). A clip (10) is fixed to the inner side of the free end of the movable beam (6). A slot (7) is provided on the rear side of the top beam (4). The clip (10) is connected to the slot (7).

3. The repair tool for the cleaning chain scraper of the dry slag machine according to claim 2, characterized in that: The slot (7) is a through hole slot made on the rear side plate of the top beam (4). The card head (10) is adapted to the slot (7) with a protruding rib. The outer end of the protruding rib is provided with a groove (101). A limiting spring (11) is installed in the groove (101). The limiting spring (11) includes a U-shaped connecting part that is fastened to the end of the protruding rib. The inner end of the U-shaped connecting part is connected to an arched part. The inside of the arched part is connected to a fixing part. The fixing part is fixed to the bottom of the groove (101) with a bolt.

4. The repair tool for the cleaning chain scraper of the dry slag machine according to claim 2, characterized in that: The slot (7) is a circular through hole made on the rear side plate of the top beam (4). The clamp head (10) is a shaft. A limiting spring (11) is installed on the outer end of the shaft. The limiting spring (11) has an arched part in the middle and is fixed to the shaft by screws at both ends.

5. The repair tool for the cleaning chain scraper of the dry slag machine according to claim 3, characterized in that: The short beam (3) and the top beam (4) are welded together, and the two ends of the connecting rod (5) are bolted to the top beam (4) and the short beam (3), thus forming a stable triangular support structure.

6. The repair tool for the cleaning chain scraper of the dry slag machine according to claim 4, characterized in that: The connecting rod (5) is a turnbuckle. The two ends of the connecting rod (5) are connected to the top beam (4) and the short beam (3) by pins (13). The short beam (3) and the top beam (4) are connected by a rotating shaft (12). The rotating shaft (12) is coaxial with the chuck (10). The rotating shaft (12) is equipped with a damping element to increase the rotation resistance.

7. The repair tool for the cleaning chain scraper of the dry slag machine according to claim 1, characterized in that: The left end of the top beam (4) has a notch (14) corresponding to the position above the support (2).

8. The repair device for the cleaning chain scraper of the dry slag machine according to claim 1, characterized in that: The top beam (4) is equipped with a limiting pin (8) in the middle, which is used to constrain the straight section of the scraper.

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