Automatic wheel shaft painting device

Abstract

The utility model discloses an automatic wheel shaft painting device which solves the problem that special equipment is lacked in the wheel shaft painting process in an existing maintenance workshop. A waiting station and a paint brushing station are sequentially arranged in the device in the length direction of rails, and the device is characterized in that a roller brush assembly, a side brush assembly and an automatic wheel shaft rotating mechanism are arranged at the paint brushing station, and the automatic wheel shaft rotating mechanism is arranged at the two rails to lift a wheel shaft and drive the wheel shaft to rotate; the roller brush assembly comprises a stainless steel tray I, a roller brush, a bearing assembly and a motor; the side brush assembly comprises a stand column, a brush, a nozzle, a pump and a stainless steel tray II. The rotating speed and the painting effect of the automatic painting device are more uniform compared with those of manual painting, when the axle is painted with paint, the paint can fall back into the stainless steel tray under the action of gravity, and dripping waste caused by excessive manual painting is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment for automatically painting axles in rail vehicles. Background Technology

[0002] In the existing repair workshop, the painting of wheel axles involves painting the axle body between two wheels and the axle ends located on the outer sides of the wheels. Painting the wheel axle body is currently done manually. This method is primitive, inefficient, and incompatible with the automated equipment at other workstations. To improve automation, this automatic painting device was designed based on the actual site conditions. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic wheel and axle painting device, solving the problem of the lack of specialized equipment in the existing repair workshops for the wheel and axle painting process.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] An automatic axle painting device, with a waiting station and a painting station arranged sequentially along the length of the railway track, is characterized by the following features: a roller brush assembly, a side brush assembly, and an automatic axle rotation mechanism are provided at each painting station. The automatic axle rotation mechanism is positioned at two points on the railway track to lift and drive the axle to rotate. The roller brush assembly includes a stainless steel tray I, a roller brush, a bearing assembly, and a motor. The stainless steel tray I is placed between the two railway tracks, and the roller brush is mounted on the stainless steel tray at both ends via the bearing assembly. The motor is connected to and drives the roller brush to rotate, and the roller brush applies paint to the axle. The side brush assembly includes a column, a brush, a nozzle, a pump, and a stainless steel tray II. The stainless steel tray II is located outside the railway track, and the column and pump are fixed inside the stainless steel tray II. The brush is fixed to a mounting plate on the column, and a nozzle is mounted on the brush. The nozzle is connected to the pump via a hose.

[0006] Furthermore, the rail has a slope from the waiting station A to the painting station B.

[0007] Furthermore, the next station after the painting station B is the drying station C, which is equipped with an automatic wheel axle rotation mechanism and an air curtain assembly. The air curtain assembly has an air outlet for blowing air onto the rotating wheel axle above.

[0008] Furthermore, the air curtain assembly includes an air curtain box, a fan, and a grille, wherein the air curtain box is installed in the foundation, and the grille is installed on the air curtain box.

[0009] Furthermore, the automatic wheel axle rotation mechanism includes a support roller, a drive motor, a stop bar, and a power push rod. Two support rollers are positioned at the gap in the rail and form a V-shaped gap to support the wheel axle. The drive motor is connected to the support rollers and drives them to rotate. One end of the stop bar and the power push rod are movably hinged to the base, and the other end of the power push rod is movably hinged to the middle of the stop bar. The extension and retraction of the power push rod allows the stop bar to switch between a horizontal state and an inclined state.

[0010] Furthermore, the power push rod is an electric push rod or a pneumatic push rod, and the power push rod is connected to a foot switch.

[0011] Furthermore, the roller brush consists of a roller brush spindle and brushes attached to the roller brush spindle.

[0012] Furthermore, a large sprocket is provided in the middle of the main shaft of the roller brush, and the large sprocket is mechanically connected to the motor.

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

[0014] The use of this device allows the painting wheel shaft to be rotated only once by foot, with the rest of the work completed by the equipment, reducing the labor intensity of employees by more than 50%.

[0015] The economic benefits are significant. First, it saves on labor costs. Before the upgrade, each production line required a dedicated worker for painting. After automation, one person can manage multiple production lines, saving 1-2 workers. Second, it saves on material costs. The automatic painting device rotates faster and produces a more even coating than manual painting. When painting the axle, the paint falls back into the stainless steel tray under gravity, preventing dripping and waste caused by excessive manual application. Manual painting requires dipping a brush into the tray, which easily leads to paint drips, staining the floor and making cleaning difficult. This device eliminates this step, reducing pollution at the work site.

[0016] Although the currently used anti-rust paint is water-based, it still poses certain health hazards to workers. This automated painting device eliminates direct contact between workers and materials, significantly reducing health risks. Furthermore, manual painting requires bending over and repeatedly applying paint with a brush, which can easily lead to joint problems in the lower back, legs, and wrists over long periods. This device replaces manual labor, reducing the probability of occupational diseases and eliminating such risks.

[0017] After using this equipment, the overall layout of the site is more reasonable, reducing the placement of tools and materials such as brushes, paint buckets, etc. on site. In terms of both appearance and improved site management, it is more in line with the current concept of building a modern production workshop. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is a top view of the present invention.

[0020] Figure 3 This is a side view of the present invention.

[0021] Figure 4 This is a three-dimensional diagram illustrating the principle of localization.

[0022] Figure 5 This is a partial 3D view.

[0023] Figure 6 This is a 3D diagram of the working process.

[0024] In the picture:

[0025] 00 wheel axle,

[0026] 100 rails

[0027] 200 Roller brush assembly, 210 Stainless steel tray I, 220 Roller brush, 230 Bearing assembly, 240 Motor, 250 Drive chain.

[0028] 300 side brush assembly, 310 column, 320 brush, 330 nozzle, 340 pump, 350 stainless steel tray II.

[0029] 400 Automatic wheel and axle rotation mechanism, 410 Support roller, 420 Drive motor, 430 Barrier bar, 440 Power push rod

[0030] 500 electrical control box,

[0031] 600 foot switch

[0032] 700 air curtain assembly. Detailed Implementation

[0033] The design principle of this automatic axle painting device is based on the dimensions of the axle, rationally setting up the rails and the mechanism to drive the axle's rotation, and adding an automatic roller brush mechanism. It is driven by a motor and chain transmission, with bearings supporting both ends of the roller brush's main shaft. This allows for automatic painting of the axle surface while the axle rotates automatically. After painting, the axle surface is dried by air blowing, ensuring the paint dries quickly.

[0034] The following is in conjunction with the instruction manual appendix. Figure 1 To be continued Figure 6 Please provide a detailed explanation.

[0035] The automatic axle painting device, according to its components, includes a rail 100, a roller brush assembly 200, a side brush assembly 300, an automatic axle rotation mechanism 400, an electrical control box 500, and a foot switch 600. In this embodiment, the rail is a double rail for the axle's rotation, for example... Figure 1 The automatic axle rotation mechanism 400 is positioned at an appropriate location on the rail. Based on the workstation division, along the length of the rail, the stations are, in sequence, waiting station A, painting station B, and drying station C. Figure 1 Different letters are used to indicate them.

[0036] Two sets of automatic axle rotation mechanisms 400 are installed under the two rails respectively. Specifically, at this location, a section of the rail is broken to form a partial gap (rail) for supporting the axle 100. The automatic axle rotation mechanism includes two support rollers 410, a drive motor 420, a stop bar 430, and a power push rod 440. The two support rollers 410 are located at the gap in the rail. Specifically, the support rollers 410 are fixed to the concrete base of the rail foundation using bearing assemblies. The two support rollers form a V-shaped gap for supporting the axle, which is used for temporary support of the axle.

[0037] Of the two support rollers 410, at least one is connected to the drive motor 420 via chain drive or belt drive. The drive motor drives the corresponding support roller to rotate, and the support roller further drives the upper axle to rotate.

[0038] Furthermore, the barrier bar 430 is a rod-shaped structure. One end of the barrier bar 430 is movably hinged to a base fixed to a concrete foundation. At the same time, one end of the aforementioned power push rod 440 is movably hinged to another base, which is also fixed to a concrete foundation. The other end of the power push rod is movably hinged to the middle of the barrier bar. The power extension and retraction of the power push rod allows the barrier bar to switch between a horizontal and an inclined state. In the inclined state, the barrier bar blocks the axle, preventing the steel wheel of the axle from detaching from the support wheel during the rotation of the support wheel.

[0039] Furthermore, the aforementioned power push rod 440 can be an electric push rod or a pneumatic push rod.

[0040] The roller brush assembly 200 is installed on the inner area of ​​two pairs of support rollers. This automatic brush roller assembly 200 consists of a stainless steel tray 210, a roller brush 220, a bearing assembly 230, a motor 240, and a drive chain 250. The stainless steel tray 210 is elongated and has a cavity for paint. The length of the stainless steel tray 210 spans two rails, i.e., it is positioned in the area between the two rails. The two ends of the main shaft of the roller brush are mounted on the side walls of the stainless steel tray along its length via the bearing assembly 230, allowing the roller brush 220 to rotate freely. During rotation, the roller brush agitates the paint at its lowest point, causing the paint to adhere to the brush. The highest point of the roller brush 220 contacts the lowest point of the main shaft of the roller axle, rolling the paint onto the roller axle, thus achieving rolling paint application. (Reference) Figure 6 .

[0041] The roller brush in this device can be quickly installed at both ends via bearing assembly 230. Replacing the brush only requires removing the bearings at both ends and then replacing the brush, which is convenient and quick.

[0042] Furthermore, the aforementioned roller brush consists of a roller brush spindle and brushes attached to the roller brush spindle.

[0043] Furthermore, a large sprocket is provided in the middle of the main shaft of the roller brush. The large sprocket is mechanically connected to the motor through a metal transmission chain. The motor is installed on the concrete foundation between the two rails. The motor is preferably a geared motor. At low speed, the motor drives the roller brush to rotate. The speed of the roller brush is controlled between 10 and 25 revolutions per minute to achieve the coating of the roller shaft.

[0044] Furthermore, the aforementioned bearing assembly and the stainless steel tray are quickly secured by a slot, so that replacing the brush only requires removing the bearing assemblies at both ends and then replacing the brush.

[0045] This device greatly automates the painting process on the shaft, improving production efficiency. It used to take about 20-30 seconds to paint one wheel manually, but now it only takes 10-15 seconds, increasing production efficiency by 45%.

[0046] The side brush assembly 300 includes a column 310, a brush 320, a nozzle 330, a pump 340, and a stainless steel tray 350. The side brush assembly 300 is installed on the outside of the axle 00, that is, the stainless steel tray is installed on the foundation, the column is fixed inside the stainless steel tray, and the column 310 has an L-shaped structure and is inverted. A mounting plate is fixed at the end of the column, and the brush 320 is fixed on the mounting plate. The bristles of the brush act on the outer shaft end of the axle, and the nozzle 330 is installed on the brush. The nozzle sprays paint onto the brush. The nozzle is connected to the pump 340 through a hose, and the pump is placed in the liquid paint in the stainless steel tray.

[0047] In a further improvement, a drying station C is set up at the next station after the painting station B. An automatic wheel axle rotation mechanism 400 is set up at the drying station, and an air curtain assembly 700 is set up on the foundation at the station. The air curtain assembly includes an air curtain box, a fan, and a grille. The air curtain box is installed in the foundation, and a grille is installed on the air curtain box to form a cavity for installing the fan. The fan provides an air curtain to blow air onto the rotating wheel axle above, so that the paint on the wheel axle condenses quickly.

[0048] The working method of this device is as follows:

[0049] First, the axle is hoisted and placed at waiting station A using a hoisting device. The operator pushes the axle, causing it to roll along the rails to painting station B. The axle stops at painting station B, and the automatic rotation mechanism 400 of the axle at this station is activated by a control switch. After activation, the axle rotates freely, causing the roller brush assembly and side brush assembly to move, thus painting the main body and both end faces of the axle. After painting is completed, the foot switch 600 is pressed, which activates the power push rod 440, causing the axle to continue rolling along the rails to the drying station. At this station, a blower blows air to dry the freshly painted axle, achieving rapid drying. This completes the painting work of one axle.

[0050] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Without departing from the spirit of the present utility model, all modifications and improvements to the present utility model by those skilled in the art should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A wheel axle automatic painting device, which comprises a waiting station and a painting station arranged in sequence along the length direction of the rail, characterized in that, The brush painting station is provided with a roller brush assembly, a side brush assembly and an axle automatic rotating mechanism, wherein the axle automatic rotating mechanism is arranged at two rails to lift and drive the rotation of the axle; the roller brush assembly comprises a stainless steel tray I, a roller brush, a bearing assembly and a motor, wherein the stainless steel tray I is arranged between the two rails, the roller brush is installed at both ends of the stainless steel tray through the bearing assembly, the motor is connected to and drives the rotation of the roller brush, and the roller brush rolls the paint to brush on the axle; the side brush assembly comprises a stand, a brush, a nozzle, a pump and a stainless steel tray II, the stainless steel tray II is arranged outside the rail, the stand and the pump are fixed in the stainless steel tray II, the brush is fixed on the mounting plate of the stand, the nozzle is installed on the brush, and the nozzle is connected to the pump through a hose.

2. The axle automatic painting device according to claim 1, wherein, The rail has a slope from the waiting station to the brush painting station.

3. The axle automatic painting device according to claim 2, wherein, The next station of the brush painting station is a drying station, wherein an axle automatic rotating mechanism and an air curtain assembly are arranged at the drying station, and the air curtain assembly has an air outlet for blowing the rotating axle above.

4. The axle automatic painting device according to claim 3, wherein, The air curtain assembly comprises an air curtain box, a fan and a grille, wherein the air curtain box is installed in the foundation, and the grille is installed on the air curtain box.

5. The axle automatic paint brushing apparatus of claim 1, wherein, The axle automatic rotating mechanism comprises a supporting wheel, a driving motor, a blocking rod and a power push rod, two supporting wheels are arranged at the notch position of the rail and form a V-shaped notch for lifting the axle, the driving motor is connected to the supporting wheel and drives the rotation of the supporting wheel, one end of the blocking rod and the power push rod is movably hinged to the base, and the other end of the power push rod is movably hinged to the middle part of the blocking rod, and the extension and retraction of the power push rod switches the blocking rod between the horizontal state and the inclined state.

6. The axle automatic painting device according to claim 5, wherein, The power push rod is an electric push rod or a pneumatic push rod, and the power push rod is connected to a foot switch.

7. The axle automatic paint brushing apparatus of claim 1, wherein, The roller brush is composed of a roller brush main shaft and a brush attached to the roller brush shaft.

8. The axle automatic painting device according to claim 7, wherein, A large chain wheel is arranged at the middle part of the roller brush main shaft, and the large chain wheel is mechanically connected to the motor. The roller brush is composed of a roller brush main shaft and a brush attached to the roller brush shaft. A large chain wheel is arranged at the middle part of the roller brush main shaft, and the large chain wheel is mechanically connected to the motor.

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