Surface treatment device for slotted bolt

Abstract

The utility model discloses a surface treatment device for a slotted bolt. The surface treatment device comprises a galvanizing bath, the lifting mechanism is arranged at the bottom of the galvanizing bath; the rotating mechanism is arranged at the upper end of the lifting mechanism and comprises a supporting frame connected with the lifting mechanism, a rotating bearing frame is installed on the supporting frame through a toothless type slewing bearing, a galvanizing basket is placed on the bearing frame, a circle of annular bevel gear is arranged on the bearing frame around the galvanizing basket, and a rotating driving bevel gear is arranged on the inner wall of the galvanizing tank. The driving bevel gear is located above the annular bevel gear and corresponds to the annular bevel gear, and the driving bevel gear is driven by a motor to rotate; the limiting mechanism is arranged on the bearing frame and is connected with the galvanized basket; according to the utility model, a workpiece can be directly centrifuged in the galvanizing bath after being galvanized, so that a plating solution is prevented from being scattered everywhere when the workpiece is transferred.

Description

Technical Field

[0001] This utility model relates to the field of galvanizing technology, specifically to a surface treatment device for slotted bolts. Background Technology

[0002] To enhance the corrosion resistance and wear resistance of bolt surfaces, galvanizing is typically required. One method is hot-dip galvanizing. After galvanizing, the workpiece needs to be centrifuged to remove residual plating solution. However, current galvanizing tanks typically lack centrifugal mechanisms, requiring the workpiece to be removed from the tank and transferred to a centrifuge. During this transfer, residual plating solution can easily spill. Utility Model Content

[0003] To address the shortcomings of the prior art, this utility model proposes a surface treatment device for slotted bolts.

[0004] To achieve the above-mentioned technical effects, the present invention adopts the following solution:

[0005] A surface treatment apparatus for slotted bolts, comprising:

[0006] Galvanizing tank;

[0007] The lifting mechanism is located at the bottom of the galvanizing tank;

[0008] A rotating mechanism, located at the upper end of a lifting mechanism, includes a support frame connected to the lifting mechanism. A rotating bearing frame is mounted on the support frame via a toothless slewing bearing. A galvanized basket is placed on the bearing frame. A ring-shaped bevel gear is arranged around the galvanized basket on the bearing frame. A rotating drive bevel gear is arranged on the inner wall of the galvanizing tank. The drive bevel gear is located above and corresponds to the ring-shaped bevel gear. The drive bevel gear is driven to rotate by a motor.

[0009] The limiting mechanism is located on the supporting frame and connected to the galvanized basket;

[0010] The heating mechanism is located on the galvanizing tank.

[0011] In a preferred embodiment, the lifting mechanism includes at least three guide rails fixedly disposed within the galvanizing tank. The guide rails are vertically arranged and spaced apart around the edge of the support frame. Sliding sliders are matched on the guide rails. The edge of the support frame is fixedly connected to the sliders. A cylinder is installed at the lower end of the galvanizing tank, and the telescopic rod of the cylinder extends into the galvanizing tank and is fixedly connected to the lower end of the support frame.

[0012] In a preferred embodiment, the limiting mechanism includes multiple protruding blocks on the upper end of the supporting frame, and the lower end of the galvanized basket is provided with a square groove that mates with the blocks.

[0013] In a preferred embodiment, the heating mechanism includes a cover set at the lower end of the galvanizing tank, a heat-conducting plate that is attached to the bottom of the galvanizing tank and has the same size as the bottom of the galvanizing tank is provided inside the cover, a plurality of PTC heaters are attached to the lower end of the heat-conducting plate, and a plurality of vent holes are provided on the cover.

[0014] In a preferred embodiment, a temperature sensor is provided on the inner wall of the galvanizing tank.

[0015] Compared with existing technologies, the beneficial effects are:

[0016] This invention features a simple structure and convenient operation. Bolts are placed in a galvanizing basket for galvanizing. After galvanizing, a lifting mechanism drives a supporting frame to lift the basket above the galvanizing solution, engaging a ring bevel gear with a drive bevel gear. Driven by a motor, the supporting frame rotates at high speed, centrifuging the bolts. In this invention, the workpiece can be centrifuged directly within the galvanizing tank after galvanizing, preventing the galvanizing solution from spilling during bolt transfer. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0018] Reference numerals: 1. Galvanizing tank; 2. Heat-conducting plate; 3. PTC heater; 4. Cylinder; 5. Guide rail; 6. Slider; 7. Support frame; 8. Gearless slewing bearing; 9. Outer ring; 10. Inner ring; 11. Bearing frame; 12. Block; 13. Galvanizing basket; 14. Ring bevel gear; 15. Drive bevel gear; 16. Motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] A surface treatment device for slotted bolts includes: a galvanizing tank 1, a lifting mechanism, a rotating mechanism, a limiting mechanism, and a heating mechanism.

[0021] The galvanizing tank 1 contains a galvanizing solution for hot-dip galvanizing.

[0022] The lifting mechanism is located at the bottom of the galvanizing tank 1.

[0023] A rotating mechanism is located at the upper end of the lifting mechanism and includes a support frame 7 connected to the lifting mechanism. The support frame 7 has several first through holes for the plating solution to pass through. A rotating bearing frame 11 is mounted on the support frame 7 via a toothless slewing bearing 8. The bearing frame 11 has several second through holes for the plating solution to pass through. The outer ring 9 of the toothless slewing bearing 8 is fixedly mounted on the support frame 7, and the bearing frame 11 is fixedly mounted on the inner ring 10 of the toothless slewing bearing 8, thereby enabling the bearing frame 11 to rotate on the support frame 7. A galvanizing basket 13 is placed on the bearing frame 11. The galvanizing basket 13 has several water-permeable holes. After the bolts to be galvanized are placed in the galvanizing basket 13, the galvanizing basket 13 is then lifted into the galvanizing tank 1 by a crane or other equipment and placed on the bearing frame 11. A ring bevel gear 14 is fixedly arranged around the galvanized basket 13 on the support frame 11. A rotating drive bevel gear 15 is provided on the inner wall of the galvanizing tank 1. The drive bevel gear 15 is located above the ring bevel gear 14 and corresponds to the ring bevel gear 14. The drive bevel gear 15 is driven to rotate by the motor 16. When the support frame 11 rises and the ring bevel gear 14 abuts against the lower end of the drive bevel gear 15 to mesh, the motor 16 can drive the support frame 11 to rotate.

[0024] The limiting mechanism is located on the supporting frame 11 and connected to the galvanized basket 13; it limits the galvanized basket 13 so that the supporting frame 11 can drive the galvanized basket 13 to rotate.

[0025] The heating mechanism is located on the galvanizing tank 1 and is used to heat the plating solution.

[0026] Bolts are placed in a galvanizing basket 13 for galvanizing. After galvanizing, a lifting mechanism drives a support frame 11 to lift the galvanizing basket 13 above the surface of the galvanizing solution, and the ring bevel gear 14 meshes with the drive bevel gear 15. Driven by a motor 16, the support frame 11 rotates at high speed to centrifuge the bolts. In this invention, the galvanized bolts can be centrifuged directly in the galvanizing tank 1, avoiding spillage of the galvanizing solution during bolt transfer.

[0027] In a preferred embodiment, the lifting mechanism includes at least three guide rails 5 fixedly disposed within the galvanizing tank 1. The guide rails 5 are vertically arranged, and the at least three guide rails 5 are spaced apart around the edge of the support frame 7. Sliding sliders 6 are matched on the guide rails 5. The edge of the support frame 7 is fixedly connected to the sliders 6. A cylinder 4 is installed at the lower end of the galvanizing tank 1. The telescopic rod of the cylinder 4 extends into the galvanizing tank 1 and is fixedly connected to the lower end of the support frame 7.

[0028] The cylinder 4 pushes the support frame 7 to move vertically on the guide rail 5 via the slider 6, thereby raising and lowering the rotating mechanism.

[0029] In a preferred embodiment, the limiting mechanism includes a plurality of blocks 12 protruding from the upper end of the supporting frame 11, and the lower end of the galvanized basket 13 is provided with a square groove that mates with the blocks 12.

[0030] When the galvanized basket 13 is placed on the support frame 11, the block 12 fits into the square groove.

[0031] In a preferred embodiment, the heating mechanism includes a cover set at the lower end of the galvanizing tank 1, a heat-conducting plate 2 that is attached to the bottom of the galvanizing tank 1 and has the same size as the bottom of the galvanizing tank 1 inside the cover, a plurality of PTC heaters 3 that are attached to the lower end of the heat-conducting plate 2, and a plurality of ventilation holes on the cover.

[0032] In a preferred embodiment, a temperature sensor is provided on the inner wall of the galvanizing tank 1.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A surface treatment device for slotted bolts, characterized by, The utility model relates to a zinc plating tank, which comprises a zinc plating tank (1), a lifting mechanism arranged at the bottom of the zinc plating tank (1), a rotating mechanism arranged at the upper end of the lifting mechanism, a supporting frame (7) connected with the lifting mechanism, a rotating bearing (8) mounted on the supporting frame (7), a bearing frame (11) arranged on the rotating bearing (8), a zinc plating basket (13) arranged on the bearing frame (11), a ring gear (14) arranged around the zinc plating basket (13) on the bearing frame (11), a driving gear (15) arranged on the inner wall of the zinc plating tank (1), the driving gear (15) being arranged above the ring gear (14) and corresponding to the ring gear (14), the driving gear (15) being driven to rotate by a motor (16), a limiting mechanism arranged on the bearing frame (11) and connected with the zinc plating basket (13), and a heating mechanism arranged on the zinc plating tank (1). The lifting mechanism comprises at least three guide rails (5) fixedly arranged in the zinc plating tank (1), the guide rails (5) being vertically arranged, the at least three guide rails (5) being arranged at intervals around the edge of the supporting frame (7), a sliding block (6) being arranged on the guide rails (5) in a sliding manner, the edge of the supporting frame (7) being fixedly connected with the sliding block (6), and a pneumatic cylinder (4) being arranged at the lower end of the zinc plating tank (1), the pneumatic cylinder (4) being arranged in the zinc plating tank (1) and fixedly connected with the lower end of the supporting frame (7). The limiting mechanism comprises a plurality of blocks (12) protruding from the upper end of the bearing frame (11), and the lower end of the zinc plating basket (13) is provided with a square groove matched with the blocks (12). The heating mechanism comprises a cover arranged at the lower end of the zinc plating tank (1), a heat-conducting plate (2) arranged in the cover and matched with the bottom of the zinc plating tank (1), a plurality of PTC heaters (3) arranged at the lower end of the heat-conducting plate (2), and a plurality of air holes arranged on the cover. A temperature sensor is arranged on the inner wall of the zinc plating tank (1). ​ 2. The surface treatment device for slotted bolt according to claim 1, wherein ​ 3. The surface treatment device for slotted bolt according to claim 1, wherein ​ 4. The surface treatment device for slotted bolt according to claim 1, wherein ​ 5. The surface treatment device for slotted bolt according to claim 1, wherein ​

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