A fully automatic fastener maintenance bed

Abstract

The utility model discloses a full -automatic fastener maintenance bed belongs to bolt maintenance technical field. Including maintenance liquid groove, front box, apron, pivot, steel wire roller and rear box and thin apron, the maintenance liquid groove has the maintenance liquid in, and the pivot and steel wire roller immerse in the maintenance liquid, the front box and apron seal connection, the rear box and thin apron seal connection, the pivot and steel wire roller set not less than two and rotate and install between apron and rear box, the pivot and steel wire roller connection drive unit synchronization, the upper area between the pivot and adjacent steel wire roller forms the maintenance area for placing fastener. The utility model discloses a full -automatic fastener maintenance bed solves in the overhaul of large -scale device, and the number of bolt that needs to maintain single time often reaches dozens to hundreds, and traditional manual mode is difficult to satisfy the urgent requirement of overhaul period, and it is easy to cause equipment downtime extension, causes the technical problem of serious production loss.

Description

Technical Field

[0001] This utility model relates to the field of bolt maintenance technology, specifically a fully automatic fastener maintenance bed. Background Technology

[0002] In industries such as chemical, power, and petroleum refining, critical equipment operating under high temperature and high pressure conditions (such as chemical reactors, power plant steam pipeline systems, and high-temperature and high-pressure valves) widely adopts flange connection structures. Bolts, as the core fasteners of flange connections, directly determine the safety and stability of equipment operation based on their connection reliability. Taking control valves used in power plant steam systems as an example, their operating environment temperature typically reaches 300-600℃, and system pressure reaches 10-30MPa. Under the combined effects of high temperature, high pressure, and steam media, bolts are prone to severe oxidation and corrosion, metal fatigue, and thread adhesion. In high-temperature reaction devices in the chemical industry, bolts may also be corroded by corrosive media, further exacerbating thread damage and the risk of failure. During routine equipment maintenance or emergency repairs, the aforementioned bolts need to be disassembled, maintained, and then reassembled, or replaced with new bolts to ensure connection strength. Currently, bolt maintenance is mainly done manually or semi-automatically. The specific process includes: manually removing rust from the bolt surface using tools such as wire brushes and sandpaper, then applying a maintenance agent (such as rust-preventive oil or lubricating grease) with a brush. For rust inside the threaded holes, a manual tap is needed to clean it step by step.

[0003] Bolts operating under high temperature and pressure conditions are typically large (e.g., M20-M60) and heavy, making manual rust removal and application of curing agents time-consuming and labor-intensive, with a single bolt requiring 15-30 minutes of curing time. During the maintenance of large-scale equipment, the number of bolts requiring curing in a single operation often reaches dozens to hundreds. Traditional manual methods are insufficient to meet the tight schedule requirements of maintenance, easily leading to extended equipment downtime and significant production losses.

[0004] Therefore, it is necessary to provide a fully automatic fastener maintenance bed to solve the above problems. Utility Model Content

[0005] Based on the aforementioned problems in the existing technology, the purpose of this utility model is to provide a fully automatic fastener maintenance bed to solve the problems mentioned in the background technology.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a fully automatic fastener curing bed, including a curing liquid tank, a front box, a cover plate, a rotating shaft, a wire roller, a rear box, and a thin cover plate. The curing liquid tank contains curing liquid, and the rotating shaft and wire roller are immersed in the curing liquid. The front box and the cover plate are sealed together, and the rear box and the thin cover plate are sealed together. At least two rotating shafts and wire rollers are provided and rotatably installed between the cover plate and the rear box. The rotating shafts and wire rollers are connected to a drive unit for synchronization. The upper area between the rotating shaft and the adjacent wire roller forms a curing area for placing fasteners. There is a gap between the rotating shaft and the adjacent wire roller. The curing area and the fasteners are both located in the curing liquid, and the diameter of the fasteners is larger than the gap between the rotating shaft and the adjacent wire rollers.

[0007] Furthermore, the drive unit includes a motor, a gearbox, and several drive shafts. A driven gear is fixedly connected to the outer peripheral wall of the drive shaft. The motor is driven by the input end of the gearbox. The gearbox is installed on the top of the cover plate. The output end of the gearbox is driven by the driven gear of one of the drive shafts through a driving gear. An idler gear meshes between two adjacent driven gears. The idler gear is rotatably installed between the front housing and the cover plate through an idler gear shaft. The drive shaft is driven by one end of a rotating shaft and a wire roller.

[0008] Furthermore, the drive shaft has a hexagonal portion, a sealing portion, a first driven portion, a drive portion, and a second driven portion in sequence from front to back. The second driven portion is rotatably mounted on the inner wall of the front housing via a bearing. The drive portion is fixedly connected to the drive gear. The first driven portion is rotatably mounted on the inner wall of the cover plate via a bearing. The sealing portion is sealed with an end cap. The outer end face of the end cap is flush with the outer end face of the cover plate. The hexagonal portion protrudes out of the cover plate.

[0009] Furthermore, a rear axle is rotatably connected between the rear housing and the thin cover plate. The rear axle has a conical part, a main body part, and a rotating part in sequence from front to back. The rotating part is rotatably mounted on the thin cover plate through a bearing. The main body part is sealed to the end cover. The outer end face of the end cover is flush with the outer end face of the rear housing. The conical part protrudes out of the rear housing body.

[0010] Furthermore, the wire roller is composed of a hollow roller and a wire layer. The wire layer is installed on the outer peripheral wall of the hollow roller. One end of the hollow roller is fixedly connected to an inner hexagonal cap that matches the hexagonal part, and the other end is fixedly connected to a round hole cap that matches the conical part.

[0011] Furthermore, the steel wire layer is composed of several fine steel wires with a diameter of 0.1 mm to 0.2 mm distributed in a centripetal direction.

[0012] Furthermore, one end of the rotating shaft is provided with a hexagonal hole that matches the hexagonal portion, and the other end is provided with a tail hole that matches the conical portion.

[0013] Furthermore, an annular mounting groove is provided on the inner wall of the end cap, and a sealing ring is installed in the mounting groove.

[0014] The beneficial effects of this utility model are as follows: The fully automatic fastener maintenance bed provided by this utility model is equipped with a synchronously rotating shaft and a wire roller. Under the action of gravity and friction, the bolt is driven to rotate in opposite directions between the shaft and the wire roller. When it comes into contact with the wire layer, the rust on the surface of the bolt is ground off by the wire layer without manual intervention. It can also uniformly grind the outer surface of the bolt. At the same time, it can accommodate bolts of different diameters and can place several bolts at the same time, which is highly efficient and increases the versatility of the maintenance bed.

[0015] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the driving structure of this utility model; Figure 3 This is a schematic diagram of the front housing of this utility model; Figure 4 This is a schematic diagram of the cover plate of this utility model; Figure 5 This is a front view schematic diagram of the drive shaft of this utility model; Figure 6 This is a three-dimensional schematic diagram of the drive shaft of this utility model; Figure 7 This is a schematic diagram of the support structure of this utility model; Figure 8 This is a schematic diagram of the rear box of this utility model; Figure 9 This is a schematic diagram of the thin cover plate of this utility model; Figure 10 This is a three-dimensional schematic diagram of the rear axle of this utility model; Figure 11 This is a schematic diagram of the rotating shaft of this utility model; Figure 12 This is a schematic diagram of the wire roller of this utility model; Figure 13 This is a schematic diagram of the end cap of this utility model; Figure 14 This is a top sectional view of the present invention; Figure 15 This is an installation diagram of the present invention; Figure 16 This is a schematic diagram of the rotation direction of the rotating shaft wire roller of this utility model; The following are the labeling elements in the figure: 1. Front housing; 2. Cover plate; 3. Shaft; 31. Hexagonal hole of shaft; 32. Tail hole of shaft; 4. Wire roller; 41. Wire layer; 42. Internal hexagonal cover; 43. Round hole cover; 44. Hollow roller; 5. Rear housing; 6. Thin cover plate; 7. Drive shaft; 71. Hexagonal part; 72. Sealing part; 73. First driven part; 74. Drive part; 75. Second driven part; 8. End cover; 81. Mounting groove; 9. Rear shaft; 91. Conical part; 92. Main body; 93. Rotating part; 10. Sealing ring. Detailed Implementation

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] like Figure 1-16 As shown, the present invention provides a technical solution: a fully automatic fastener curing bed, including a curing liquid tank, a front box 1, a cover plate 2, a rotating shaft 3, a wire roller 4, a rear box 5, and a thin cover plate 6. The curing liquid tank contains curing liquid, the rotating shaft 3 and the wire roller 4 are immersed in the curing liquid, the front box 1 and the cover plate 2 are sealed together, the rear box 5 and the thin cover plate 6 are sealed together, at least two rotating shafts 3 and wire rollers 4 are provided and rotatably installed between the cover plate 2 and the rear box 5, the rotating shafts 3 and the wire rollers 4 are connected to a drive unit to rotate synchronously, and the upper area between the rotating shaft 3 and the adjacent wire roller 4 forms a curing area for placing fasteners. There is a gap between the rotating shaft 3 and the adjacent wire roller 4. The curing area and the fasteners are both located in the curing liquid, and the diameter of the fasteners is larger than the gap between the rotating shaft 3 and the adjacent wire roller 4.

[0020] The drive unit includes a motor, a gearbox, and several drive shafts 7. Driven gears are fixedly connected to the outer peripheral wall of the drive shafts 7. The motor is connected to the input end of the gearbox. The gearbox is installed on the top of the cover plate 2. The output end of the gearbox is connected to the driven gear of one of the drive shafts 7 through the driving gear. An idler gear meshes between two adjacent driven gears. The idler gear is rotatably installed between the front housing 1 and the cover plate 2 through the idler gear shaft. The drive shaft 7 is connected to one end of the rotating shaft 3 and the wire roller 4.

[0021] The drive shaft 7 has a hexagonal part 71, a sealing part 72, a first driven part 73, a drive part 74, and a second driven part 75 in sequence from front to back. The second driven part 75 is rotatably mounted on the inner wall of the front housing 1 via a bearing. The drive part 74 is fixedly connected to the drive gear. The first driven part 73 is rotatably mounted on the inner wall of the cover plate 2 via a bearing. The sealing part 72 is sealed with an end cover 8. The outer end face of the end cover 8 is flush with the outer end face of the cover plate 2. The hexagonal part 71 protrudes out of the cover plate 2.

[0022] A rear axle 9 is rotatably connected between the rear housing 5 and the thin cover plate 6. The rear axle 9 has a conical part 91, a main body part 92 and a rotating part 93 in sequence from front to back. The rotating part 93 is rotatably mounted on the thin cover plate 6 through a bearing. The main body part 92 is sealed to the end cover 8. The outer end face of the end cover 8 is flush with the outer end face of the rear housing 5. The conical part 91 protrudes out of the rear housing 5.

[0023] The wire roller 4 is composed of a hollow roller 44 and a wire layer 41. The wire layer 41 is installed on the outer peripheral wall of the hollow roller 44. One end of the hollow roller 44 is fixedly connected to an inner hexagonal cap 42 that matches the hexagonal part 71, and the other end is fixedly connected to a round hole cap 43 that matches the conical part 91.

[0024] The steel wire layer 41 is composed of several fine steel wires with a diameter of 0.1 mm to 0.2 mm distributed in a centripetal direction.

[0025] One end of the rotating shaft 3 is provided with a rotating shaft hexagonal hole 31 that matches the hexagonal part 71, and the other end is provided with a rotating shaft tail hole 32 that matches the conical part 91.

[0026] An annular mounting groove 81 is provided on the inner wall of the end cap 8, and a sealing ring 10 is installed in the mounting groove 81.

[0027] In one embodiment, the fastener maintenance bed works as follows: Specifically, this curing bed is typically used to cure double-ended bolts with a diameter of 3 mm or more. The fastener curing bed is placed in a curing liquid tank, and then the curing liquid tank is filled until the rotating shaft 3 and the wire roller 4 are submerged. The bolts to be cured are placed in the curing area between the rotating shaft 3 and the wire roller 4 and soaked for a period of time. The motor is started and the power is transmitted to the corresponding drive shaft 7 through the gearbox. The two idler gears meshing with the drive shaft 7 rotate, driving the drive shaft 7 meshing with the corresponding idler gear to rotate synchronously. The drive shaft 7 rotates in the same direction. The hexagonal part 71 drives the rotating shaft 3 and the wire roller 4 to rotate synchronously. The conical part 91 of the rear shaft 9 abuts against the rotating shaft 3 and the wire roller 4, and the rear shaft 9 also rotates accordingly. Under the influence of gravity and friction with the rotating shaft 3 and the wire roller 4, the bolts that need to be maintained are driven to rotate at a low speed. The direction of rotation is opposite to that of the rotating shaft 3 and the wire roller 4. Under the grinding action of the steel wire layer 41 on the wire roller 4, the rust on the bolts can be removed.

[0028] In summary, this device, equipped with a synchronously rotating shaft 3 and a wire roller 4, drives the bolt to rotate in opposite directions between the shaft 3 and the wire roller 4 under the action of gravity and friction. When the bolt comes into contact with the wire layer 41, the rust on the surface of the bolt is ground off by the wire layer 41 without manual intervention. It can also uniformly grind the outer surface of the bolt, accommodate bolts of different diameters, and can hold several bolts at the same time. It is highly efficient and increases the versatility of the curing bed.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fully automatic fastener curing bed, immersed in a tank filled with curing liquid, characterized in that: The device includes a curing liquid tank, a front housing (1), a cover plate (2), a rotating shaft (3), a wire roller (4), a rear housing (5), and a thin cover plate (6). The curing liquid tank contains curing liquid, and the rotating shaft (3) and the wire roller (4) are immersed in the curing liquid. The front housing (1) and the cover plate (2) are sealed together, and the rear housing (5) and the thin cover plate (6) are sealed together. There are at least two rotating shafts (3) and wire rollers (4) and they are rotatably installed between the cover plate (2) and the rear housing (5). The rotating shafts (3) and the wire rollers (4) are connected to a drive unit for synchronization. The area above the rotating shaft (3) and the adjacent wire roller (4) forms a curing area for placing fasteners. There is a gap between the rotating shaft (3) and the adjacent wire roller (4). The curing area and the fastener are both located in the curing liquid and the diameter of the fastener is greater than the gap between the rotating shaft (3) and the adjacent wire roller (4).

2. The fully automatic fastener maintenance bed according to claim 1, characterized in that: The drive unit includes a motor, a gearbox and several drive shafts (7). A driven gear is fixedly connected to the outer peripheral wall of the drive shaft (7). The motor is connected to the input end of the gearbox. The gearbox is installed on the top of the cover plate (2). The output end of the gearbox is connected to the driven gear of one of the drive shafts (7) through the driving gear. An idler gear meshes between two adjacent driven gears. The idler gear is rotatably installed between the front housing (1) and the cover plate (2) through the idler gear shaft. The drive shaft (7) is connected to one end of the rotating shaft (3) and the wire roller (4).

3. The fully automatic fastener maintenance bed according to claim 2, characterized in that: The drive shaft (7) has a hexagonal part (71), a sealing part (72), a first driven part (73), a drive part (74), and a second driven part (75) in sequence from front to back. The second driven part (75) is rotatably mounted on the inner wall of the front housing (1) via a bearing. The drive part (74) is fixedly connected to the drive gear. The first driven part (73) is rotatably mounted on the inner wall of the cover plate (2) via a bearing. The sealing part (72) is sealed with an end cover (8). The outer end face of the end cover (8) is flush with the outer end face of the cover plate (2). The hexagonal part (71) protrudes out of the cover plate (2).

4. The fully automatic fastener maintenance bed according to claim 3, characterized in that: A rear shaft (9) is rotatably connected between the rear housing (5) and the thin cover plate (6). The rear shaft (9) has a conical part (91), a main body part (92) and a rotating part (93) in sequence from front to back. The rotating part (93) is rotatably mounted on the thin cover plate (6) through a bearing. The main body part (92) is sealed to the end cover (8). The outer end face of the end cover (8) is flush with the outer end face of the rear housing (5). The conical part (91) protrudes out of the rear housing (5).

5. The fully automatic fastener maintenance bed according to claim 4, characterized in that: The wire roller (4) is composed of a hollow roller (44) and a wire layer (41). The wire layer (41) is installed on the outer peripheral wall of the hollow roller (44). One end of the hollow roller (44) is fixedly connected to an inner hexagonal cap (42) that matches the hexagonal part (71), and the other end is fixedly connected to a round hole cap (43) that matches the conical part (91).

6. The fully automatic fastener maintenance bed according to claim 5, characterized in that: The steel wire layer (41) is composed of several fine steel wires with a diameter of 0.1 mm to 0.2 mm distributed in a centripetal direction.

7. The fully automatic fastener maintenance bed according to claim 5, characterized in that: One end of the shaft (3) is provided with a hexagonal hole (31) that matches the hexagonal part (71), and the other end is provided with a tail hole (32) that matches the conical part (91).

8. The fully automatic fastener maintenance bed according to claim 3, characterized in that: An annular mounting groove (81) is provided on the inner wall of the end cap (8), and a sealing ring (10) is installed in the mounting groove (81).

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