Surface treatment equipment for railway passenger car door handle

Abstract

The invention discloses surface treatment equipment for a door handle of a railway passenger car, and relates to the technical field of railway passenger car manufacturing. The equipment comprises a main body frame, wherein a mounting circular truncated cone is arranged on the main body frame; the polishing mechanism comprises four polishing belts which are mounted on the mounting circular truncated cone and used for polishing the door handle, each polishing belt is fixedly mounted on a reciprocating belt, and the two ends of the reciprocating belt are connected with semi-arc fixing blocks correspondingly; the reciprocating mechanism is matched with the cylinder mechanism and the driving mechanism to drive the polishing belt to slide back and forth; two semi-arc fixing blocks are driven to do reciprocating motion in opposite directions through the matching effect of forward driving of a driving mechanism and a reciprocating mechanism, the semi-arc fixing blocks drive a reciprocating belt to do reciprocating motion in the left-right direction, then a grinding belt is driven to grind the surface of the door handle, and meanwhile through the flexibility of the grinding belt, the surface of the door handle is ground. And the grinding belt can make tight contact with the arc-shaped position of the door handle, and therefore the grinding quality of the arc-shaped position of the door handle is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of rail passenger vehicle manufacturing technology, and in particular to a surface treatment device for rail passenger vehicle door handles. Background Technology

[0002] With the development of rail passenger vehicles, people's transportation methods are constantly changing. Taking rail passenger vehicles can improve transportation efficiency and reduce the operational pressure on commonly used transportation methods. Currently, rail passenger vehicles are mainly subways. The biggest advantage of rail passenger vehicles is that they do not cause traffic jams, thus improving the convenience of riding.

[0003] Currently, after long-term use, the door handles of rail passenger cars need to be recycled to facilitate their reuse. However, since the door handles of rail passenger cars are all curved, the existing grinding blocks are very inefficient when polishing their surfaces, resulting in repeated polishing. In addition, areas with excessive curvature require manual polishing.

[0004] Based on this, the present invention designs a surface treatment device for rail passenger car door handles to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a surface treatment device for rail passenger car door handles, aiming to solve the technical problems existing in the prior art mentioned in the background.

[0006] The present invention is implemented as follows: a surface treatment device for door handles of rail passenger cars, the device comprising: Main frame: It is equipped with a mounting platform; Grinding mechanism: includes four grinding belts mounted on the mounting platform for grinding door handles. Each grinding belt is fixedly mounted on a reciprocating belt, and the two ends of the reciprocating belt are respectively connected to a semi-circular fixing block. Reciprocating mechanism: It drives the grinding belt to slide back and forth through cooperation with the cylinder mechanism and the drive mechanism; Revolutionary mechanism: The grinding belt is switched by the driving action of the drive mechanism.

[0007] Furthermore, the reciprocating mechanism includes a movable semicircular block fixedly connected to the semicircular fixed block. A reciprocating spring is fixedly mounted on the surface of the movable semicircular block. The end of the reciprocating spring away from the movable semicircular block is connected to a Y-shaped plate. A straight groove that mates with the movable semicircular block is formed on the Y-shaped plate. A movable slider is fixedly mounted on the surface of the movable semicircular block. The movable slider is slidably connected to the surface of the Y-shaped plate. An L-shaped rod is fixedly mounted on the surface of the movable slider. A U-groove block is fixedly mounted on the surface of the L-shaped rod. A connecting shaft of a rotating plate passes through the surface of the Y-shaped plate. The connecting shaft is rotatably connected to the Y-shaped plate. A rotating column that mates with the U-shaped block is fixedly installed on the surface of the rotating plate. A secondary bevel gear is fixedly installed on the connecting shaft of the rotating plate. The secondary bevel gear meshes with the main bevel gear. The connecting shaft of the main bevel gear passes through the Y-shaped plate and is rotatably connected to the Y-shaped plate. The connecting shaft of the main bevel gear is slidably connected to the inner wall of the movable sleeve shaft. The movable sleeve shaft is rotatably connected to the cylinder mechanism. A linkage bevel gear that mates with the drive mechanism is fixedly installed on the surface of the movable sleeve shaft. An arc-shaped through groove that mates with the reciprocating belt is opened on the Y-shaped plate.

[0008] Furthermore, the cylinder mechanism includes a drive cylinder fixedly mounted on the surface of the Y-shaped plate, a movable vertical plate fixedly mounted on the output end of the drive cylinder, the movable vertical plate being slidably connected to the inner wall of the Y-shaped plate, and a movable sleeve shaft passing through the surface of the movable vertical plate and being rotatably connected to the movable sleeve shaft.

[0009] Furthermore, the drive mechanism includes a drive motor fixedly mounted on a mounting platform. The output end of the drive motor passes through the mounting platform and is rotatably connected to it. A rotating gear is fixedly mounted on the output end of the drive motor. The rotating gear meshes with an internal ratchet gear. The connecting shaft of the internal ratchet gear passes through the mounting platform and is rotatably connected to it. The connecting shaft of the internal ratchet gear also passes through the revolution mechanism and is rotatably connected to it. A transmission bevel gear that cooperates with the linkage bevel gear is fixedly mounted on the connecting shaft of the internal ratchet gear.

[0010] Furthermore, the revolution mechanism includes an external ratchet cylinder that meshes with a rotating gear, a main rotating cylinder that is fixedly installed on the inner wall of the external ratchet cylinder, the main rotating cylinder that is rotatably connected to the mounting frustum, and the connecting shaft of the internal ratchet gear passing through the interior of the main rotating cylinder and rotatably connected to the connecting shaft of the internal ratchet gear.

[0011] Furthermore, the contact surface between the arcuate groove on the Y-shaped plate and the reciprocating belt is set to a smooth surface.

[0012] Furthermore, the reciprocating belt is made of elastic rubber.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses the combined action of the forward drive mechanism and the reciprocating mechanism to drive two semi-circular fixed blocks to reciprocate in opposite directions. The semi-circular fixed blocks drive the reciprocating belt to reciprocate in the left and right directions, thereby driving the grinding belt to grind the surface of the door handle. At the same time, the flexibility of the grinding belt allows it to make close contact with the arc-shaped position of the door handle, thus ensuring the grinding quality of the arc-shaped position of the door handle.

[0014] 2. This invention uses the reverse drive of the drive mechanism and the cooperation of the reciprocating mechanism to drive the grinding belt to revolve, so that the grinding belts in adjacent positions revolve to the working position, thereby achieving automatic switching of the grinding belt, ensuring the grinding quality of the door handle, and improving the switching efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a surface treatment device for a rail passenger car door handle provided in an embodiment of the present invention; Figure 2 For the present invention Figure 1 A magnified structural diagram at point A; Figure 3 This is a schematic cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 A magnified structural diagram at point B; Figure 5 For the present invention Figure 3 A magnified structural diagram at point C; Figure 6 This is a cross-sectional view of the surface treatment device for a rail passenger car door handle according to the present invention. Figure 7 For the present invention Figure 6 A magnified structural diagram at point D; Figure 8 This is a cross-sectional view of the surface treatment device for a rail passenger car door handle according to the present invention. Figure 9 For the present invention Figure 8 A magnified structural diagram at point E; Figure 10 This is an exploded structural diagram of some parts of a surface treatment device for a rail passenger car door handle according to the present invention; Figure 11 For the present invention Figure 10 A magnified structural diagram at point F.

[0016] In the attached diagram: 1. Main frame; 101. Mounting platform; 2. Grinding mechanism; 201. Grinding belt; 202. Reciprocating belt; 203. Semi-circular fixing block; 3. Reciprocating mechanism; 301. Moving semi-circular block; 302. Reciprocating spring; 303. Y-shaped plate; 304. Moving slider; 305. L-shaped rod; 306. U-groove block; 307. Rotating column; 308. Rotating plate; 309. Secondary bevel gear; 310. Main bevel gear; 311. Moving sleeve shaft; 312. Linkage bevel gear; 4. Cylinder mechanism; 401. Drive cylinder; 402. Moving vertical plate; 5. Drive mechanism; 501. Drive motor; 502. Rotating gear; 503. Internal ratchet gear; 504. Transmission bevel gear; 6. Revolution mechanism; 601. External ratchet cylinder; 602. Main rotating cylinder. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0019] like Figure 4 , Figure 5 , Figure 7 and Figure 9 As shown, in one embodiment, a surface treatment apparatus for rail passenger car door handles is provided, the apparatus comprising: Main frame 1: It is equipped with a mounting truncated cone 101; Grinding mechanism 2: includes four grinding belts 201 mounted on the mounting platform 101 for grinding the door handle. Each grinding belt 201 is fixedly mounted on a reciprocating belt 202, and both ends of the reciprocating belt 202 are connected to a semi-circular fixing block 203. Reciprocating mechanism 3: Drives the grinding belt 201 to reciprocate by cooperating with cylinder mechanism 4 and drive mechanism 5; Revolutionary mechanism 6: The grinding belt 201 is switched by the driving action of the driving mechanism 5.

[0020] In practical applications, when a door handle needs to be polished, the door handle is fixed by an external fixing device, and then a moving device moves the door handle to fit against the polishing belt 201, while simultaneously pressing the reciprocating belt 202 to ensure it remains taut. Figure 4 , Figure 5 and Figure 7As shown, at this time, the two semi-circular fixed blocks 203 are driven to reciprocate in opposite directions by the combined action of the forward drive of the drive mechanism 5 and the reciprocating mechanism 3, as shown. Figure 9 As shown, the semi-circular fixed block 203 drives the reciprocating belt 202 to reciprocate in the left and right directions, which in turn drives the grinding belt 201 to grind the surface of the door handle. At the same time, the flexibility of the grinding belt 201 allows it to make close contact with the arc-shaped position of the door handle, thus ensuring the grinding quality of the arc-shaped position of the door handle. After multiple grinding operations, the reverse drive of the drive mechanism 5 and the cooperation of the reciprocating mechanism 3 drive the grinding belt 201 to revolve, causing the adjacent grinding belts 201 to revolve to the working position, thereby achieving automatic switching of the grinding belt 201, ensuring the grinding quality of the door handle, and improving the switching efficiency.

[0021] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 10 and Figure 11 As shown, in a preferred embodiment of the present invention, the reciprocating mechanism 3 includes a movable semicircular block 301 fixedly connected to the semicircular fixed block 203. A reciprocating spring 302 is fixedly mounted on the surface of the movable semicircular block 301. One end of the reciprocating spring 302 away from the movable semicircular block 301 is connected to a Y-shaped plate 303. A straight groove that mates with the movable semicircular block 301 is provided on the Y-shaped plate 303. A movable slider 304 is fixedly mounted on the surface of the movable semicircular block 301. The movable slider 304 is slidably connected to the surface of the Y-shaped plate 303. An L-shaped rod 305 is fixedly mounted on the surface of the movable slider 304. A U-groove block 306 is fixedly mounted on the surface of the L-shaped rod 305. A rotating plate 308 passes through the surface of the Y-shaped plate 303. The rotating plate 308 is rotatably connected to the Y-shaped plate 303. A rotating column 307 that cooperates with the U-groove block 306 is fixedly installed on the surface of the rotating plate 308. A secondary bevel gear 309 is fixedly installed on the connecting shaft of the rotating plate 308. The secondary bevel gear 309 meshes with the main bevel gear 310. The connecting shaft of the main bevel gear 310 passes through the Y-shaped plate 303 and is rotatably connected to the Y-shaped plate 303. The connecting shaft of the main bevel gear 310 is slidably connected to the inner wall of the movable sleeve shaft 311. The movable sleeve shaft 311 is rotatably connected to the cylinder mechanism 4. A linkage bevel gear 312 that cooperates with the drive mechanism 5 is fixedly installed on the surface of the movable sleeve shaft 311. An arc-shaped through groove that cooperates with the reciprocating belt 202 is opened on the Y-shaped plate 303.

[0022] In practical applications, when the door handle presses against the reciprocating belt 202, causing the reciprocating belt 202 to tighten, as in the following embodiments of the present invention... Figure 5 As shown, at this time, the driving action of the driving mechanism 5 drives the linkage bevel gear 312 to rotate, as... Figure 4 As shown, the rotation of the linkage bevel gear 312 drives the two auxiliary bevel gears 309 to rotate in opposite directions via the movable sleeve shaft 311 and the main bevel gear 310. The rotation of the auxiliary bevel gears 309 drives the rotating plate 308 to rotate synchronously. Figure 2 As shown, the U-groove block 306 is driven to reciprocate through the cooperation of the rotating column 307 and the U-groove block 306. The movement of the U-groove block 306 drives the moving semicircular block 301 to reciprocate through the L-shaped rod 305 and the moving slider 304. The moving semicircular blocks 301 at both ends of the reciprocating belt 202 move in opposite directions, thereby fully polishing the arc surface on the door handle.

[0023] like Figure 3 and Figure 4 As shown, in a preferred embodiment of the present invention, the cylinder mechanism 4 includes a drive cylinder 401 fixedly installed on the surface of the Y-shaped plate 303. A movable vertical plate 402 is fixedly installed at the output end of the drive cylinder 401. The movable vertical plate 402 is slidably connected to the inner wall of the Y-shaped plate 303. A movable sleeve shaft 311 passes through the surface of the movable vertical plate 402 and is rotatably connected to the movable sleeve shaft 311.

[0024] In practical applications, the embodiments of the present invention, such as Figure 4 As shown, after the grinding belt 201 completes multiple grinding operations, the drive cylinder 401 at the working end starts to run. The operation of the drive cylinder 401 drives the moving vertical plate 402 to move closer to the drive cylinder 401, thereby causing the linkage bevel gear 312 to disengage from the transmission bevel gear 504. When the reciprocating belt 202 at the adjacent end is driven to the working end by the reverse drive of the drive mechanism 5, the new drive cylinder 401 runs, driving the new linkage bevel gear 312 to mesh with the transmission bevel gear 504, thereby ensuring that the new linkage bevel gear 312 rotates under the drive of the drive mechanism 5.

[0025] like Figure 5 and Figure 7 As shown, in a preferred embodiment of the present invention, the driving mechanism 5 includes a drive motor 501 fixedly mounted on the mounting frustum 101. The output end of the drive motor 501 passes through the mounting frustum 101 and is rotatably connected to the mounting frustum 101. A rotary gear 502 is fixedly mounted on the output end of the drive motor 501. The rotary gear 502 meshes with an internal ratchet 503. The connecting shaft of the internal ratchet 503 passes through the mounting frustum 101 and is rotatably connected to the mounting frustum 101. The connecting shaft of the internal ratchet 503 also passes through the revolution mechanism 6 and is rotatably connected to the revolution mechanism 6. A transmission bevel gear 504 that cooperates with the linkage bevel gear 312 is fixedly mounted on the connecting shaft of the internal ratchet 503.

[0026] In practical applications, the embodiments of the present invention, such as Figure 7As shown, when the door handle is being polished, the drive motor 501 starts running. The movement of the drive motor 501 drives the rotating gear 502 to rotate, which in turn drives the internal ratchet 503 to rotate. Figure 5 As shown, the rotation of the internal ratchet 503 drives the transmission bevel gear 504 to rotate synchronously. The rotation of the transmission bevel gear 504 drives the linkage bevel gear 312 to rotate through meshing with the linkage bevel gear 312. In turn, the reciprocating mechanism 3 drives the grinding belt 201 to reciprocate and fully grind the arc surface of the door wrench. When the grinding belt 201 completes multiple grinding operations, the reverse operation of the drive mechanism 5 drives the revolution mechanism 6 to rotate. The rotation of the revolution mechanism 6 drives the Y-shaped plate 303 to revolve. In turn, the reciprocating mechanism 3 drives the grinding belt 201 to revolve, thus achieving the purpose of automatically switching the grinding belt 201.

[0027] like Figure 6 and Figure 7 As shown, in a preferred embodiment of the present invention, the revolution mechanism 6 includes an outer ratchet cylinder 601 that meshes with the rotating gear 502. A main rotating cylinder 602 is fixedly installed on the inner wall of the outer ratchet cylinder 601. The main rotating cylinder 602 is rotatably connected to the mounting frustum 101. The connecting shaft of the inner ratchet 503 passes through the interior of the main rotating cylinder 602 and is rotatably connected to the connecting shaft of the inner ratchet 503.

[0028] In practical applications, the embodiments of the present invention, such as Figure 7 As shown, when the drive motor 501 runs in reverse, the external ratchet cylinder 601 is driven to rotate through the meshing action of the drive motor 501 and the external ratchet cylinder 601. Figure 6 As shown, the main rotating cylinder 602 drives the Y-shaped plate 303 to revolve, thereby achieving the purpose of automatically switching the grinding belt 201.

[0029] like Figure 8 and Figure 9 As shown, in a preferred embodiment of the present invention, the contact surface between the arc groove on the Y-shaped plate 303 and the reciprocating belt 202 is set as a smooth surface.

[0030] In practical applications, the embodiments of the present invention, such as Figure 9 As shown, the smooth surface reduces friction on the reciprocating belt 202, thus preventing wear on the surface of the reciprocating belt 202 during its reciprocating motion.

[0031] like Figure 9 As shown, in a preferred embodiment of the present invention, the reciprocating belt 202 is made of elastic rubber.

[0032] In practical applications, the embodiments of the present invention, such as Figure 9As shown, by setting the reciprocating belt 202 to an elastic rubber material, it is ensured that when the surface of the door handle is squeezed by the polishing belt 201, the reciprocating belt 202 can deform itself, thereby avoiding excessive extrusion pressure that could cause the reciprocating belt 202 to break.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface treatment apparatus for a door handle of a railcar, characterized by, The device comprises: A main frame (1) with a mounting circular table (101) on it; A polishing mechanism (2) comprising four polishing belts (201) for polishing door handles, each polishing belt (201) being fixedly installed on a reciprocating belt (202), and the two ends of the reciprocating belt (202) being connected with a semicircular fixed block (203) respectively; A reciprocating mechanism (3) for driving the polishing belt (201) to reciprocate by cooperating with a cylinder mechanism (4) and a driving mechanism (5); A revolution mechanism (6) for switching the polishing belt (201) by the driving action of the driving mechanism (5).

2. A surface treatment apparatus for a door handle of a railcar according to claim 1, characterized in that, The reciprocating mechanism (3) comprises a moving semicircular block (301) fixedly connected with the semicircular fixed block (203), a reciprocating spring (302) fixedly installed on the surface of the moving semicircular block (301), a Y-shaped plate (303) connected with the end of the reciprocating spring (302) away from the moving semicircular block (301), a straight slot (not shown in the figure) provided on the Y-shaped plate (303) and matched with the moving semicircular block (301), a moving slider (304) fixedly installed on the surface of the moving semicircular block (301), a L-shaped rod (305) fixedly installed on the surface of the moving slider (304), a U-shaped groove block (306) fixedly installed on the surface of the L-shaped rod (305), a connecting shaft of a rotating plate (308) penetrating through the surface of the Y-shaped plate (303) and rotatably connected with the Y-shaped plate (303), a rotating column (307) fixedly installed on the surface of the rotating plate (308) and matched with the U-shaped groove block (306), a secondary bevel gear (309) fixedly installed on the connecting shaft of the rotating plate (308), the secondary bevel gear (309) being engaged with a primary bevel gear (310), the connecting shaft of the primary bevel gear (310) penetrating through the Y-shaped plate (303) and rotatably connected with the Y-shaped plate (303), the connecting shaft of the primary bevel gear (310) being slidably connected with the inner wall of a moving sleeve shaft (311), the moving sleeve shaft (311) being rotatably connected with the cylinder mechanism (4), a linkage bevel gear (312) fixedly installed on the surface of the moving sleeve shaft (311) and matched with the driving mechanism (5), and an arc-shaped through slot (not shown in the figure) provided on the Y-shaped plate (303) and matched with the reciprocating belt (202).

3. A surface treatment apparatus for a door handle of a rail vehicle according to claim 2, characterized in that The cylinder mechanism (4) comprises a driving cylinder (401) fixedly installed on the surface of the Y-shaped plate (303), a moving vertical plate (402) fixedly installed on the output end of the driving cylinder (401), the moving vertical plate (402) being slidably connected with the inner wall of the Y-shaped plate (303), and the moving sleeve shaft (311) penetrating through the surface of the moving vertical plate (402) and rotatably connected with the moving vertical plate (402).

4. A surface treatment apparatus for a door handle of a railcar as defined in claim 2, wherein The driving mechanism (5) comprises a driving motor (501) fixedly installed on the installation circular table (101), the output end of the driving motor (501) penetrates the installation circular table (101) and is rotationally connected with the installation circular table (101), the output end of the driving motor (501) is fixedly installed with a rotating gear (502), the rotating gear (502) is engaged with an inner ratchet gear (503), the connecting shaft of the inner ratchet gear (503) penetrates the installation circular table (101) and is rotationally connected with the installation circular table (101), the connecting shaft of the inner ratchet gear (503) penetrates the revolution mechanism (6) and is rotationally connected with the revolution mechanism (6), and the connecting shaft of the inner ratchet gear (503) is fixedly installed with a transmission bevel gear (504) matched with the linkage bevel gear (312).

5. A surface treatment apparatus for a door handle of a railcar as defined in claim 4, wherein The revolution mechanism (6) comprises an outer ratchet gear cylinder (601) engaged with the rotating gear (502), the inner wall surface of the outer ratchet gear cylinder (601) is fixedly installed with a main rotating cylinder (602), the main rotating cylinder (602) is rotationally connected with the installation circular table (101), and the inside of the main rotating cylinder (602) penetrates the connecting shaft of the inner ratchet gear (503) and is rotationally connected with the connecting shaft of the inner ratchet gear (503).

6. A surface treatment apparatus for a door handle of a railcar as defined in claim 2, wherein The contact surface of the arc-shaped groove on the Y-shaped plate (303) and the reciprocating belt (202) is a smooth surface.

7. A surface treatment apparatus for a door handle of a railcar as defined in claim 1, wherein The reciprocating belt (202) is made of elastic rubber.

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