A whole diesel engine surface coating equipment

Abstract

A surface coating device for a whole diesel engine, which relates to the technical field of surface spraying, includes a fixed middle seat and two sliding side seats. A rotating spraying component and a convection drying component are respectively arranged on the fixed middle seat. A longitudinal conveying component is arranged below the convection drying component. A surface-changing clamping component is respectively arranged on the two sliding side seats. The present invention solves the problems in the traditional spraying equipment when it is used for spraying the whole diesel engine, such as small spraying coverage range, untimely drying of paint, and inconvenient surface-changing operation during spraying.

Description

Technical Field

[0001] The present invention relates to the technical field of surface spraying, and particularly to a surface coating device for a whole diesel engine. Background Art

[0002] A diesel engine, also known as a diesel motor, is an engine that burns diesel to obtain energy release.

[0003] The basic structure of a traditional diesel engine includes a crank connecting rod mechanism, a valve train, a transmission mechanism, a fuel supply system, a lubrication system, a cooling system, and a starting system, commonly known as three major mechanisms and four major systems. The good cooperation of these systems and mechanisms is the key for the diesel engine to generate power and output power externally.

[0004] Due to the relatively complex working environment of the diesel engine, the external metal parts exposed to air and oxygen for a long time are prone to oxidation reactions, resulting in rust. This not only affects the overall aesthetics of the diesel engine but also reduces the service life of the relevant components of the diesel engine. Therefore, during the process of manufacturing diesel engines in the workshop, an anti-rust link is usually added at the end of the production process, and the main anti-rust method used is surface spraying.

[0005] Regardless of the surface spraying of any component, it needs to be carried out on a specific spraying device. Different from the surface spraying of single small components, due to the large volume and irregular surface of the diesel engine itself, during the process of spraying the whole diesel engine, there are often problems such as unreasonable design of the clamping mechanism, which will block the spraying part during the spraying process, resulting in incomplete spraying coverage and affecting the spraying effect; untimely drying of the paint affects the spraying efficiency; and it is impossible to realize automatic spraying and surface changing, etc., which is extremely inconvenient to use.

[0006] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to be improved. Summary of the Invention

[0007] Aiming at the defects in the prior art, the present invention provides a surface coating device for a whole diesel engine to solve the problems of small spraying coverage range, untimely drying of paint, and inconvenient spraying and surface changing operations when the traditional spraying device is used for spraying the whole diesel engine.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A surface coating device for a whole diesel engine includes a fixed middle seat and two sliding side seats. A rotating spraying component and a convection drying component are respectively arranged on the fixed middle seat. A longitudinal conveying component is arranged below the convection drying component. And a surface changing clamping component is respectively arranged on the two sliding side seats.

[0010] As an optimized solution, the convection drying assembly includes two symmetrically arranged gantry support plates, the lower ends of the gantry support plates are fixedly connected to the fixed intermediate seat, and drying boxes are respectively fixedly connected to the longitudinal outer walls of each gantry support plate, and a blower impeller and an annular electric heating tube are respectively arranged in the drying boxes.

[0011] As an optimized solution, the rotating spraying assembly includes a horizontally arranged support bridge plate, the support bridge plate is fixedly supported on the two gantry support plates, a spraying box is rotatably arranged at the center of the inner top surface of the support bridge plate, the spraying box is a closed conical box, and a number of pressurizing nozzles are fixedly connected to the spraying box.

[0012] As an optimized solution, the longitudinal conveying assembly includes a horizontally arranged conveyor belt, and the two ends of the conveyor belt respectively pass through the lower openings of the two gantry support plates and extend to the outside thereof.

[0013] As an optimized solution, the surface-changing clamping assembly includes two symmetrically arranged support vertical plates, the two support vertical plates are respectively fixedly connected longitudinally to the two sliding side seats, and circular turntables are respectively rotatably arranged on the inner end faces of each support vertical plate.

[0014] As an optimized solution, a square positioning block is fixedly connected to the center of the side end face of the circular turntable, two symmetric positioning clamping plates are respectively telescopically arranged on the two longitudinal sides of the square positioning block, and a transfer push plate is telescopically arranged on the transverse side end face of the square positioning block.

[0015] As an optimized solution, two symmetric limit sliding columns are respectively fixedly connected to each transverse side end face of the fixed intermediate seat, the limit sliding columns extend horizontally and the lower ends are grounded, the sliding side seats are clamped on two parallel limit sliding columns, and a limit sliding groove matching with the limit sliding columns is opened on the lower surface of the sliding side seats.

[0016] As an optimized solution, a motor installation opening is opened at the center of the upper surface of the fixed intermediate seat, a double-output shaft motor is fixed in the motor installation opening, the ends of the two output shafts of the double-output shaft motor respectively pass through the fixed intermediate seat and are fixedly connected with laterally extending driving threaded rods, and the two driving threaded rods respectively pass through and are threadedly connected to the corresponding sliding side seats.

[0017] As an optimized solution, the drying box is a single-side opening cylindrical box, an air inlet communicating with the drying box is opened on the side wall of the gantry support plate, a blower driving motor is respectively fixedly connected to the closed outer end face of each drying box, and the end of the output shaft of the blower driving motor extends into the drying box and is fixedly connected to the blower impeller.

[0018] As an optimized solution, one side of the upper surface of the support bridge plate is fixedly connected with a paint box. The paint box is a horizontally arranged square box, and an external supply pump is connected to the paint box. A feeding pipe is fixedly connected to the supply pump.

[0019] As an optimized solution, a vertical connecting pipe is fixedly connected to the upper end surface of the spraying box. The upper end of the connecting pipe passes through the support bridge plate and is rotationally clamped in the paint box. An annular enclosing plate is fixedly connected to the outer peripheral wall of the connecting pipe.

[0020] As an optimized solution, a vertical rotation driving motor is fixedly connected to one side of the upper surface of the support bridge plate. The end of the output shaft of the rotation driving motor passes downward through the support bridge plate and is fixedly connected with a horizontal transmission wheel. A transmission belt is sleeved between the annular enclosing plate and the horizontal transmission wheel.

[0021] As an optimized solution, the longitudinal conveying assembly further includes two symmetrically arranged conveying mounting frames. The conveying mounting frame is a U-shaped frame with an upward opening. The two conveying mounting frames are longitudinally arranged on both sides of the fixed intermediate seat. Two symmetric lifting telescopic cylinders are respectively arranged below each conveying mounting frame. The lower fixed end of the lifting telescopic cylinder is grounded, and the upper telescopic end of the lifting telescopic cylinder is fixedly connected to the lower surface of the conveying mounting frame.

[0022] As an optimized solution, a conveying motor is fixedly connected to the transverse outer wall of each conveying mounting frame. The end of the output shaft of the conveying motor passes through the conveying mounting frame and is fixedly connected with a conveying roller. The conveyor belt is sleeved between the two conveying rollers.

[0023] As an optimized solution, two vertically symmetrically arranged electric control telescopic cylinders are respectively fixedly connected to each longitudinal side end surface of the square positioning block. The telescopic end of the electric control telescopic cylinder is fixedly connected to the longitudinal inner wall of the positioning clamping plate.

[0024] As an optimized solution, a horizontal telescopic cylinder is fixedly connected to the transverse side end surface of the square positioning block. The telescopic end of the horizontal telescopic cylinder is fixedly connected to the back surface of the transfer push plate.

[0025] As an optimized solution, a steering driving motor is fixedly connected to the transverse outer end surface of each support vertical plate. The end of the output shaft of the steering driving motor passes through the support vertical plate and is fixedly connected to the back surface of the circular turntable.

[0026] As an optimized solution, a limiting support ring is arranged outside the circular turntable. The end of the limiting support ring is fixedly connected to the inner side end surface of the support vertical plate.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] In the present invention, the longitudinally conveying assembly is provided to realize the longitudinal conveying, lifting and transferring of the whole diesel engine. Specifically, the longitudinally conveying assembly includes a conveyor belt, the two ends of which are respectively sleeved on two conveying rollers, and the conveying rollers are rotatably installed on the conveying mounting frame. During the conveying and transferring process, the lifting telescopic cylinder can be controlled to drive the conveying mounting frame to lift and lower, so as to adjust the conveying height of the diesel engine and dock and transfer it to the surface-changing clamping assembly.

[0029] In the present invention, the rotating spraying assembly is provided to realize the rotating spraying on the single-side surface of the diesel engine. Specifically, the rotating spraying assembly includes a spraying box rotatably arranged, several pressurizing nozzles arranged circumferentially are fixedly connected to the lower end of the spraying box, a connecting pipe is fixedly connected to the upper end of the spraying box, and the upper end of the connecting pipe is rotatably clamped in the paint tank and communicated with it; during spraying, the rotating driving motor drives the horizontal transmission wheel to rotate, and the torque is transmitted by the transmission belt and the annular enclosure, driving the connecting pipe and the whole spraying box to rotate around the axis, and the pressurizing nozzles are opened to spray the surface of the diesel engine; among them, the rotating spraying method can effectively expand the spraying range, thus eliminating the dead angle of spraying coverage.

[0030] In the present invention, the convection drying assembly is provided to perform real-time convection drying on the surface of the diesel engine after spraying. Specifically, the convection drying assembly includes two symmetrically arranged gantry-shaped support plates, a drying box is fixed on each gantry-shaped support plate, a fan impeller and an annular electric heating tube are arranged in the drying box, and the fan impeller rotates around the axis driven by the fan driving motor, so as to send the air heated by the annular electric heating tube between the two gantry-shaped support plates, thereby thermally drying the paint sprayed on the diesel engine, so as to ensure that the paint at the clamping part of the diesel engine has solidified when performing surface-changing spraying.

[0031] In the present invention, the surface-changing clamping assembly is provided to clamp and position the diesel engine during spraying and drying, and realize the surface-changing clamping of the diesel engine through steering cooperation, so as to facilitate the spraying of different sides of the diesel engine. Specifically, the surface-changing clamping assembly includes four positioning clamping plates. By respectively performing operations such as telescoping, moving and steering on the four positioning clamping plates, the diesel engine can be picked up and transferred, so as to realize the switching of different clamping parts, and complete the automatic spraying surface-changing of the diesel engine on the premise that the positions of the rotating spraying assembly and the convection drying assembly remain unchanged. Description of the Drawings

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0033] Figure 1 Schematic cross-sectional view of the internal structure of each component in the present invention in the front view direction;

[0034] Figure 2 Partial half-sectional view of each component in the present invention in the top view direction;

[0035] Figure 3 Schematic cross-sectional view of the internal structure of each component in the present invention in the side view direction;

[0036] Figure 4 Schematic diagram of the external overall structure of the present invention in the front view direction;

[0037] Figure 5 Schematic diagram of the external overall structure of the present invention in the top view direction;

[0038] Figure 6 Schematic diagram of the external overall structure of the present invention in the side view direction.

[0039] In the figure: 1 - Fixed intermediate seat, 2 - Sliding side seat, 3 - Limit slide post, 4 - Limit slide groove, 5 - Motor mounting opening, 6 - Double-output shaft motor, 7 - Driving threaded rod, 8 - Gantry support plate, 9 - Drying box, 10 - Air inlet, 11 - Fan driving motor, 12 - Fan impeller, 13 - Ring-shaped electric heating tube, 14 - Support bridge plate, 15 - Paint box, 16 - Supply pump, 17 - Feeding pipe, 18 - Spraying box, 19 - Booster spray head, 20 - Connecting pipe, 21 - Ring-shaped enclosure, 22 - Rotating driving motor, 23 - Horizontal driving wheel, 24 - Transmission belt, 25 - Conveyor mounting frame, 26 - Lifting telescopic cylinder, 27 - Conveyor belt, 28 - Conveyor motor, 29 - Conveyor roller, 30 - Support vertical plate, 31 - Steering driving motor, 32 - Circular turntable, 33 - Limit support ring, 34 - Square positioning block, 35 - Positioning clamping plate, 36 - Electric control telescopic cylinder, 37 - Horizontal telescopic cylinder, 38 - Transfer push plate. Detailed implementation manners

[0040] Hereinafter, embodiments of the technical solutions of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0041] As Figures 1 to 6 shown, a surface coating device for a whole diesel engine includes a fixed intermediate seat 1 and two sliding side seats 2. A rotating spraying assembly and a convection drying assembly are respectively arranged on the fixed intermediate seat 1. A longitudinal conveying assembly is arranged below the convection drying assembly. A surface-changing clamping assembly is respectively arranged on the two sliding side seats 2.

[0042] On each lateral end face of the fixed intermediate seat 1, two symmetric limiting sliding columns 3 are fixedly connected. The lower ends of the limiting sliding columns 3 are grounded. The sliding side seat 2 is clamped on two parallel limiting sliding columns 3, and a limiting sliding groove 4 matching the limiting sliding columns 3 is formed on the lower surface of the sliding side seat 2.

[0043] At the center of the upper surface of the fixed intermediate seat 1, a motor mounting opening 5 is formed. A double-output shaft motor 6 is fixed in the motor mounting opening 5. The ends of the two output shafts of the double-output shaft motor 6 respectively pass through the fixed intermediate seat 1 and are fixedly connected with laterally extending driving threaded rods 7. The two driving threaded rods 7 respectively pass through and are threadedly connected to the corresponding sliding side seats 2.

[0044] The convection drying assembly includes two symmetrically arranged portal support plates 8. The two portal support plates 8 are respectively arranged on the longitudinal two sides of the motor mounting opening 5. The lower end of each portal support plate 8 is fixedly connected to the upper surface of the fixed intermediate seat 1.

[0045] On the longitudinal outer wall of each portal support plate 8, a drying box 9 is fixedly connected. The drying box 9 is a cylindrical box with a single-side opening. An air inlet 10 communicating with the drying box 9 is formed on the side wall of the portal support plate 8. On the closed outer end face of each drying box 9, a fan driving motor 11 is fixedly connected. The end of the output shaft of the fan driving motor 11 extends into the drying box 9 and is fixedly connected with a fan impeller 12. An annular electric heating tube 13 is fixedly installed between the fan impeller 12 and the closed inner end face of the drying box 9.

[0046] The rotary spraying assembly includes a horizontally arranged supporting bridge plate 14. The two ends of the supporting bridge plate 14 are respectively fixedly supported on the two portal support plates 8.

[0047] On one side of the upper surface of the supporting bridge plate 14, a paint box 15 is fixedly connected. The paint box 15 is a horizontally arranged square box. The paint box 15 is externally connected with a supply pump 16, and a feeding pipe 17 is fixedly connected to the supply pump 16.

[0048] At the center of the inner top surface of the supporting bridge plate 14, a spraying box 18 is rotatably arranged. The spraying box 18 is a closed conical box, and a number of pressurizing spray heads 19 are fixedly connected to the spraying box 18.

[0049] On the upper end face of the spraying box 18, a vertical connecting pipe 20 is fixedly connected. The upper end of the connecting pipe 20 passes through the supporting bridge plate 14 and is rotatably clamped in the paint box 15. An annular enclosing plate 21 is fixedly connected to the outer peripheral wall of the connecting pipe 20.

[0050] On one side of the upper surface of the supporting bridge plate 14, a vertical rotation driving motor 22 is fixedly connected. The end of the output shaft of the rotation driving motor 22 passes through the supporting bridge plate 14 downward and is fixedly connected with a horizontal transmission wheel 23. A transmission belt 24 is sleeved between the annular enclosing plate 21 and the horizontal transmission wheel 23.

[0051] The longitudinal conveying assembly includes two symmetrically arranged conveying mounting frames 25. The conveying mounting frame 25 is a U-shaped frame with an upward opening. The two conveying mounting frames 25 are longitudinally arranged on both sides of the fixed intermediate seat 1. Two symmetrically arranged lifting telescopic cylinders 26 are respectively provided below each conveying mounting frame 25. The lower fixed end of the lifting telescopic cylinder 26 is grounded, and the upper telescopic end of the lifting telescopic cylinder 26 is fixedly connected to the lower surface of the conveying mounting frame 25.

[0052] The longitudinal conveying assembly further includes a horizontally arranged conveyor belt 27. Both ends of the conveyor belt 27 respectively pass through the lower openings of two gantry support plates 8 and extend to the outside thereof.

[0053] A conveying motor 28 is fixedly connected to the transverse outer wall of each conveying mounting frame 25. The end of the output shaft of the conveying motor 28 passes through the conveying mounting frame 25 and is fixedly connected to a conveying roller 29. The conveyor belt 27 is sleeved between the two conveying rollers 29.

[0054] The surface-changing clamping assembly includes two symmetrically arranged support vertical plates 30. The two support vertical plates 30 are respectively longitudinally fixedly connected to the two sliding side seats 2. A steering drive motor 31 is fixedly connected to the transverse outer end face of each support vertical plate 30. The end of the output shaft of the steering drive motor 31 passes through the support vertical plate 30 and is fixedly connected to a circular turntable 32. A limiting support ring 33 is arranged outside the circular turntable 32, and the end of the limiting support ring 33 is fixedly connected to the inner end face of the support vertical plate 30.

[0055] A square positioning block 34 is fixedly connected to the center of the side end face of the circular turntable 32. Two symmetrically arranged positioning clamping plates 35 are respectively telescopically arranged on both longitudinal sides of the square positioning block 34. The end of the positioning clamping plate 35 extends below the support bridge plate 14.

[0056] Two vertically symmetrically arranged electric control telescopic cylinders 36 are respectively fixedly connected to each longitudinal side end face of the square positioning block 34. The telescopic end of the electric control telescopic cylinder 36 is fixedly connected to the inner side wall of the positioning clamping plate 35.

[0057] A horizontal telescopic cylinder 37 is fixedly connected to the transverse side end face of the square positioning block 34. The telescopic end of the horizontal telescopic cylinder 37 is fixedly connected to a transfer push plate 38.

[0058] When the present invention is in use: First, place the diesel engine to be sprayed flat on the conveyor belt 27, start the conveyor motor 28, the conveyor motor 28 drives the conveyor roller 29 to rotate, and then drives the conveyor belt 27 to circulate and roll, transferring the diesel engine longitudinally to directly below the support bridge plate 14; control the lifting telescopic cylinder 26 to extend, drive the two conveyor mounting frames 25 to move upward, and lift the entire diesel engine; in the initial state, the four positioning clamping plates 35 are all in the vertical state, start the double-output shaft motor 6, the double-output shaft motor 6 drives the two driving threaded rods 7 to rotate, respectively control the two sliding side seats 2 to slide laterally, move two of the positioning clamping plates 35 to both sides of the diesel engine, and move the other two positioning clamping plates 35 to the outside of the gantry support plate 8 for steering avoidance; control the electric control telescopic cylinder 36 to shorten, drive the two positioning clamping plates 35 to move towards each other, clamp and position the diesel engine, and then control the lifting telescopic cylinder 26 to shorten to reset the conveyor belt 27; turn on the supply pump 16, inject the spraying paint along the feeding pipe 17, through the supply pump 16, into the paint tank 15, and the paint then flows into the spraying tank 18 through the connecting pipe 20. At the same time, start the rotation driving motor 22, the rotation driving motor 22 drives the horizontal transmission wheel 23 to rotate, use the transmission belt 24 and the annular enclosure 21 to transmit torque, drive the connecting pipe 20 and the entire spraying tank 18 to rotate around the axis, turn on the pressurized spray head 19, and spray the surface of the diesel engine; after one side of spraying is completed, start the steering driving motor 31, the steering driving motor 31 drives the circular turntable 32 to rotate, and flip the clamped diesel engine by 180° for surface spraying on the other side; after the surface spraying on both sides is completed, control the circular turntable 32 to rotate by 90°, make the two painted sides of the diesel engine face the two air inlets 10, start the fan driving motor 11, the fan driving motor 11 drives the fan impeller 12 to rotate, and blow the air heated by the annular electric heating tube 13 into the air inlets 10 to convectively dry the paint on the surface of the diesel engine; after drying is completed, the two positioning clamping plates 35 clamping the diesel engine are in the horizontal state, and the other two positioning clamping plates 35 moved to the outside are in the vertical state. Start the double-output shaft motor 6 again, control the sliding side seat 2 to move back until the other two positioning clamping plates 35 move to the longitudinal sides of the diesel engine; control the two horizontal telescopic cylinders 37 to expand and contract, use the two transfer push plates 38 to push and transfer the diesel engine between the two horizontal positioning clamping plates to between the two vertical positioning clamping plates, and clamp and position the diesel engine by controlling the electric control telescopic cylinder 36 to expand and contract, and horizontally move out the two horizontal positioning clamping plates to realize surface-changing clamping; then repeat the above spraying and drying operations until the four sides of the diesel engine are completely sprayed; finally, transfer the sprayed diesel engine to the conveyor belt 27 and transport it out longitudinally.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A surface coating device for a whole diesel engine, characterized in that: It includes a fixed middle seat (1) and two sliding side seats (2). A rotating spraying assembly and a convection drying assembly are respectively provided on the fixed middle seat (1). A longitudinal conveying assembly is provided below the convection drying assembly. A surface-changing clamping assembly is respectively provided on the two sliding side seats (2); The convection drying assembly includes two symmetrically arranged gantry support plates (8). The lower ends of the gantry support plates (8) are fixedly connected to the fixed middle seat (1). A drying box (9) is respectively fixedly connected to the longitudinal outer walls of each gantry support plate (8). A fan impeller (12) and an annular electric heating tube (13) are respectively arranged in the drying box (9); The rotating spraying assembly includes a horizontally arranged support bridge plate (14). The support bridge plate (14) is fixedly supported on the two gantry support plates (8). A spraying box (18) is rotatably arranged at the center of the inner top surface of the support bridge plate (14). The spraying box (18) is a closed conical box. The spraying box (18) is fixedly connected with a number of pressurized nozzles (19); The longitudinal conveying assembly includes a horizontally arranged conveyor belt (27). The two ends of the conveyor belt (27) respectively pass through the lower openings of the two gantry support plates (8) and extend to the outside thereof; The surface-changing clamping assembly includes two symmetrically arranged support vertical plates (30). The two support vertical plates (30) are respectively longitudinally fixedly connected to the two sliding side seats (2). A circular turntable (32) is rotatably arranged on the inner end surface of each support vertical plate (30); A square positioning block (34) is fixedly connected to the center of the side end surface of the circular turntable (32). Two symmetric positioning clamping plates (35) are respectively telescopically arranged on the two longitudinal sides of the square positioning block (34). A transfer push plate (38) is telescopically arranged on the transverse side end surface of the square positioning block (34); Two vertically symmetrically arranged electric control telescopic cylinders (36) are respectively fixedly connected to each longitudinal side end surface of the square positioning block (34). The telescopic end of the electric control telescopic cylinder (36) is fixedly connected to the longitudinal inner wall of the positioning clamping plate (35); A horizontal telescopic cylinder (37) is fixedly connected to the transverse side end surface of the square positioning block (34). The telescopic end of the horizontal telescopic cylinder (37) is fixedly connected to the back surface of the transfer push plate (38); A paint box (15) is fixedly connected to one side of the upper surface of the support bridge plate (14). The paint box (15) is a horizontally arranged square box. A supply pump (16) is externally connected to the paint box (15). A feeding pipe (17) is fixedly connected to the supply pump (16); A vertical connecting pipe (20) is fixedly connected to the upper end surface of the spraying box (18). The upper end of the connecting pipe (20) passes through the support bridge plate (14) and is rotatably clamped in the paint box (15). An annular enclosing plate (21) is fixedly connected to the outer peripheral wall of the connecting pipe (20); On one side of the upper surface of the support bridge plate (14), a vertical rotation drive motor (22) is fixedly connected. The end of the output shaft of the rotation drive motor (22) passes downward through the support bridge plate (14) and is fixedly connected with a horizontal transmission wheel (23). A transmission belt (24) is sleeved between the annular enclosing plate (21) and the horizontal transmission wheel (23); The longitudinal conveying assembly further includes two symmetrically arranged conveying mounting frames (25). The conveying mounting frame (25) is a U-shaped frame with an upward opening. The two conveying mounting frames (25) are longitudinally arranged on both sides of the fixed intermediate seat (1). Below each conveying mounting frame (25), two symmetrically arranged lifting telescopic cylinders (26) are respectively provided. The lower fixed end of the lifting telescopic cylinder (26) is grounded, and the upper telescopic end of the lifting telescopic cylinder (26) is fixedly connected to the lower surface of the conveying mounting frame (25); On the transverse outer wall of each conveying mounting frame (25), a conveying motor (28) is fixedly connected. The end of the output shaft of the conveying motor (28) passes through the conveying mounting frame (25) and is fixedly connected with a conveying roller (29). The conveyor belt (27) is sleeved between the two conveying rollers (29).

2. The surface coating equipment for the whole diesel engine according to claim 1, characterized in that: On each transverse side end face of the fixed intermediate seat (1), two symmetrically arranged limiting sliding columns (3) are fixedly connected. The limiting sliding columns (3) extend horizontally and the lower ends are grounded. The sliding side seat (2) is clamped on two parallel limiting sliding columns (3). A limiting sliding groove (4) matching the limiting sliding column (3) is opened on the lower surface of the sliding side seat (2).

3. A surface coating device for the whole diesel engine according to claim 1, characterized in that: At the center of the upper surface of the fixed intermediate seat (1), a motor mounting opening (5) is opened. A double-output shaft motor (6) is fixed in the motor mounting opening (5). The ends of the two output shafts of the double-output shaft motor (6) respectively pass through the fixed intermediate seat (1) and are fixedly connected with laterally extending driving threaded rods (7). The two driving threaded rods (7) respectively pass through and are threadedly connected to the corresponding sliding side seats (2).

4. A surface coating device for a whole diesel engine according to claim 1, characterized in that: The drying box (9) is a cylindrical box with a single-side opening. An air inlet (10) communicating with the drying box (9) is opened on the side wall of the gantry support plate (8). On the closed outer end face of each drying box (9), a fan driving motor (11) is fixedly connected. The end of the output shaft of the fan driving motor (11) extends into the drying box (9) and is fixedly connected to the fan impeller (12).

5. A surface coating device for a whole diesel engine according to claim 1, characterized in that: On the transverse outer end face of each support vertical plate (30), a steering drive motor (31) is fixedly connected. The end of the output shaft of the steering drive motor (31) passes through the support vertical plate (30) and is fixedly connected to the back of the circular turntable (32); A limiting support ring (33) is arranged outside the circular turntable (32). The end of the limiting support ring (33) is fixedly connected to the inner side end face of the support vertical plate (30).

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