Engine water tank test bench

Abstract

The utility model discloses an engine water tank test bench, which comprises a bench frame and a conveying mechanism, the conveying mechanism is arranged on one side of the bench frame, a water tank tray is arranged on the conveying mechanism, a water tank is fixed on the water tank tray by the water tank tray, a fixing mechanism and an immersion tank are arranged in the bench frame, and the immersion tank can be lifted under the action of a jacking cylinder. The water tank on the fixing mechanism is completely immersed, and the pressurizing mechanism is used for detecting the sealing performance of the water tank under the action of pressure by filling high-pressure gas into the water tank; the accuracy and the efficiency of air tightness detection are improved, and the complexity and the labor intensity of manual operation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for radiating water tanks, in particular to an engine water tank test bench. Background Art

[0002] As an important part of the vehicle cooling system, the quality and performance of the engine water tank are crucial for the normal operation of the vehicle; among them, the airtightness of the water tank is a key indicator for evaluating its quality, which directly affects the efficiency of the cooling system and the service life of the engine.

[0003] In the traditional airtightness detection process of the engine water tank, the manual detection method is usually adopted; the operator needs to detect each water tank one by one, and observe whether there is air leakage or water leakage in the water tank by applying air pressure or water pressure; this method not only has low efficiency, but also is greatly affected by human factors, and it is difficult to ensure the accuracy and consistency of the detection results.

[0004] In addition, the operator needs to directly contact high-pressure gas or liquid during the detection process. Once there is a leakage or improper operation, it may cause personal injury; therefore, it is particularly important to develop an engine water tank test bench that can realize automatic airtightness detection. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose an engine water tank test bench to solve the problems raised in the background art.

[0006] To achieve the above technical purpose, the technical solution of the utility model provides an engine water tank test bench, which includes a bench frame and a conveying mechanism. The conveying mechanism is arranged on one side of the bench frame, and a water tank tray is arranged on it. The water tank is fixed on the water tank tray. A fixing mechanism and an immersion tank are arranged in the bench frame. The fixing mechanism includes an upper support plate, a guide rod and a lower support plate. The two ends of the guide rod are respectively fixedly connected with the upper support plate and the lower support plate. A pressurizing mechanism is arranged between the upper support plate and the lower support plate. The immersion tank is arranged below the fixing mechanism. Lifting cylinders are arranged on the bench frame on both sides of the immersion tank. The cylinder body of the lifting cylinder is connected with the bottom of the bench frame, and the piston rod is connected with the immersion tank.

[0007] Furthermore, the pressurizing mechanism includes a lifting support plate, which is slidably arranged on the guide rod. A lifting cylinder with a piston rod connected to the lifting support plate is arranged on the upper support plate. A sealing bracket is arranged on the surface of the lifting support plate adjacent to the lower support plate. A sealing cylinder is arranged on the sealing bracket. A sealing plug is arranged on the piston rod of the sealing cylinder. A slide rail is arranged on the lower support plate. A pressurizing cylinder is arranged on one side of the slide rail. A nozzle connected to a high-pressure air source is arranged on the piston rod of the pressurizing cylinder.

[0008] Further, stabilizing wheels are arranged on the outer side of the immersion tank, the stabilizing wheels are in tight contact with the inner wall of the bench, and a jacking transmission mechanism facing the slide rail is arranged on the conveying mechanism.

[0009] Further, the water tank tray includes a bottom plate and a supporting plate arranged above it. Positioning columns and rotating columns are arranged on the supporting plate. The lower ends of the positioning columns penetrate through the supporting plate and springs are arranged. Pressing plates are arranged at the upper ends of the rotating columns. A push rod and a sliding groove which are matched with each other are respectively arranged on a section of the positioning column and the rotating column between the bottom plate and the supporting plate. When the positioning column moves towards the bottom plate, the rotating column is driven to rotate through the mutual cooperation of the push rod and the sliding groove. A torsion spring is arranged in the rotating column. One end of the torsion spring is connected with the rotating column, and the other end is connected with the bottom plate.

[0010] Further, the sliding groove includes a steering groove and a reset groove which are spirally arranged coaxially with the rotating column. The pitch of the steering groove is smaller than the pitch of the reset groove. The upper and lower ends of the steering groove and the reset groove are respectively communicated through an annular groove coaxially with the rotating column.

[0011] Compared with the prior art, the beneficial effects of the present utility model include:

[0012] 1. By configuring the liftable immersion tank and the pressurizing mechanism, the present utility model realizes the efficient and automatic detection of the air tightness of the water tank. The immersion tank can be lifted under the action of the jacking cylinder to completely immerse the water tank on the fixing mechanism. The pressurizing mechanism detects the sealing performance of the water tank under the action of pressure by filling high-pressure gas into the water tank. It not only improves the accuracy and efficiency of air tightness detection, but also reduces the complexity and labor intensity of manual operation.

[0013] 2. By arranging the water tank tray with positioning columns and rotating columns, the present utility model realizes the quick and accurate fixing of the water tank on the test bench. The positioning columns are matched with the bolt holes of the water tank to ensure that the water tank can be automatically aligned when placed, improving the fixing efficiency. At the same time, the rotating column can automatically rotate and press the water tank during the pressing process of the water tank through the torsion spring and sliding groove structures inside it, further enhancing the fixing stability. This design not only simplifies the fixing steps of the water tank, but also improves the safety and reliability of the test process. Description of the Drawings

[0014] Figure 1 is a schematic diagram of an engine water tank test bench provided by the present utility model;

[0015] Figure 2 is a schematic diagram of the fixing mechanism of an engine water tank test bench provided by the present utility model;

[0016] Figure 3It is a side view of the water tank tray of an engine water tank test bench provided by the present utility model;

[0017] Figure 4 It is a schematic diagram of the rotating column of an engine water tank test bench provided by the present utility model Specific embodiments

[0018] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model 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 only used to explain the present utility model and are not used to limit the present utility model.

[0019] Refer to Figure 1 、 Figure 2 The present utility model provides an engine water tank test bench, which mainly includes a bench frame 1 and a conveying mechanism 2. The conveying mechanism 2 is arranged on one side of the bench frame 1 and is used to convey a water tank tray 8 with a water tank. A fixing mechanism 3 and an immersion tank 4 are arranged inside the bench frame 1 for fixing the water tank 9 and performing an airtightness test; a lifting and conveying mechanism 6 is arranged on the conveying mechanism 2 and is opposite to the fixing mechanism 3. The lifting and conveying mechanism 6 can lift the water tank tray 8 from the conveying mechanism 2 and convey it to the fixing mechanism 3 to realize automatic loading of the water tank.

[0020] The immersion tank 4 is located below the fixing mechanism 3 and is used to immerse the water tank to detect its airtightness. Lifting cylinders 5 are arranged on the bench frame 1 on both sides of the immersion tank 4. The cylinder body of the lifting cylinder 5 is connected to the bottom of the bench frame 1, and the piston rod is connected to the immersion tank 4. By the action of the lifting cylinder 5, the immersion tank 4 can be lifted to immerse the water tank 9 on the fixing mechanism 3. A stabilizing wheel 7 is arranged outside the immersion tank 4, and the stabilizing wheel 7 is in tight contact with the inner wall of the bench frame 1 to improve the stability of the immersion tank 4 during the lifting and lowering process.

[0021] Refer to Figure 2 The fixing mechanism 3 is composed of an upper support plate 201, a guide rod 202, a lower support plate 203 and a lifting support plate 204. The upper support plate 201 is fixedly installed on the top of the bench frame 1. Both ends of the guide rod 202 are fixedly connected to the upper support plate 201 and the lower support plate 203 respectively. The lifting support plate 204 is slidably arranged on the guide rod 202. A lifting cylinder 205 is arranged on the upper support plate 201, and its piston rod is connected to the lifting support plate 204. By the action of the lifting cylinder 205, the lifting support plate 204 can be driven to move up and down along the guide rod 202.

[0022] On one side of the lifting support plate 204 adjacent to the lower support plate 203, a sealing bracket 206 is provided. A sealing cylinder 207 is provided on the sealing bracket 206. A sealing plug is provided on the piston rod of the sealing cylinder 207, which is used to ensure the sealing of the circulating water inlet and outlet of the water tank 9 during the pressure test. A slide rail 208 is provided on the lower support plate 203, which is used to drive the sliding of the water tank tray 8 to align the circulating water inlet and outlet of the water tank 9 with the sealing plug. On one side of the slide rail 208, a pressurizing cylinder 209 is provided. A nozzle connected to a high-pressure air source is provided on the piston rod of the pressurizing cylinder 209. After the nozzle and the sealing plug are inserted into the water tank 9, they are expanded to seal the water replenishing port and the circulating water inlet and outlet of the water tank 9. The nozzle fills the water tank 9 with high-pressure gas. Subsequently, the lifting cylinder 5 lifts the immersion tank 4 to immerse the water tank 9 to detect its airtightness. After the test is completed, the slide rail 208 withdraws the water tank tray 8 to the lifting and conveying mechanism 6 and transports it to the next process along with the conveying mechanism 2.

[0023] Refer to Figure 3 、 Figure 4 The water tank tray 8 includes a bottom plate 801 and a supporting plate 802 installed above it. Positioning columns 803 and rotating columns 804 are provided on the supporting plate 802 for fixing and positioning the water tank. The positioning column 803 is multi-prismatic, and its lower end penetrates the supporting plate 802 and is provided with a spring 805. A pressing plate 807 is provided at the upper end of the rotating column 804 for pressing the water tank.

[0024] On a section of the positioning column 803 and the rotating column 804 between the bottom plate 801 and the supporting plate 802, a matching push rod 806 and a chute are respectively provided. The chute includes a steering groove 808 and a reset groove 809 that are coaxially helically arranged with the rotating column 804. The pitch of the steering groove 808 is smaller than the pitch of the reset groove 809. The upper and lower ends of the steering groove 808 and the reset groove 809 are respectively connected through an annular groove 810. A torsion spring is provided inside the rotating column 804. One end of the torsion spring is connected to the rotating column 804, and the other end is connected to the bottom plate 801.

[0025] When placing the water tank 9, the positioning column 803 is aligned with the bolt hole of the water tank 9. Press down the water tank 9 to move the positioning column 803 towards the bottom plate 801. The end of the push rod 806 slides along the steering groove 808, so that the end of the pressing plate 807 turns to above the edge of the water tank 9 and increases the elastic potential energy of the torsion spring. Subsequently, release the water tank 9, and it rises under the action of the spring 805 and its edge abuts against the pressing plate 807. At this time, the push rod 806 is still in the steering groove 808, and the friction between the pressing plate 807 and the water tank 9 is greater than the elastic force of the torsion spring. At this time, the water tank 9 is stably locked on the water tank tray 8, which is convenient for subsequent detection work.

[0026] Continue to press down the water tank 9, so that the push rod 806 moves to the end of the steering groove 808 and moves to the lower end of the steering groove 808 through the reset groove 809 at the lower end under the restoring force of the torsion spring. Under the action of the spring 805, the push rod 806 rises along the steering groove 808, and reversely rotates the rotating column 804 to increase the elastic potential energy of the torsion spring. After the push rod 806 moves to the upper end of the steering groove 808, it moves to the upper end of the steering groove 808 through the reset groove 809 at the upper end under the action of the torsion spring, completing the reset.

[0027] The specific embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An engine water tank test bench, comprising a bench frame and a conveying mechanism. The conveying mechanism is arranged on one side of the bench frame, and a water tank tray is arranged thereon. The water tank is fixed on the water tank tray, and a fixing mechanism and an immersion tank are arranged in the bench frame. It is characterized in that: The fixing mechanism includes an upper support plate, a guide rod, and a lower support plate. The two ends of the guide rod are fixedly connected to the upper support plate and the lower support plate respectively. A pressurizing mechanism is arranged between the upper support plate and the lower support plate. The immersion tank is arranged below the fixing mechanism. Jacking cylinders are arranged on the gantries on both sides of the immersion tank. The cylinder body of the jacking cylinder is connected to the bottom of the gantry, and the piston rod is connected to the immersion tank.

2. The engine water tank test bench according to claim 1, characterized in that: The pressurizing mechanism includes a lifting support plate which is slidably arranged on the guide rod. A lifting cylinder with a piston rod connected to the lifting support plate is arranged on the upper support plate. A sealing bracket is arranged on the surface of the lifting support plate adjacent to the lower support plate. A sealing cylinder is arranged on the sealing bracket. A sealing plug is arranged on the piston rod of the sealing cylinder. A slide rail is arranged on the lower support plate. A pressurizing cylinder is arranged on one side of the slide rail. A nozzle communicated with a high-pressure gas source is arranged on the piston rod of the pressurizing cylinder.

3. The engine water tank test bench according to claim 2, characterized in that: Stabilizing wheels are arranged on the outer side of the immersion tank, and the stabilizing wheels are in tight contact with the inner wall of the gantry. A jacking transmission mechanism facing the slide rail is arranged on the conveying mechanism.

4. An engine water tank test bench according to claim 2 or 3, characterized in that: The water tank tray includes a bottom plate and a supporting plate arranged above it. Positioning columns and rotating columns are arranged on the supporting plate. The lower end of the positioning column penetrates through the supporting plate and is provided with a spring. A pressing plate is arranged at the upper end of the rotating column. A push rod and a chute which are matched with each other are respectively arranged on the sections of the positioning column and the rotating column between the bottom plate and the supporting plate. When the positioning column moves towards the bottom plate, the rotating column is driven to rotate through the mutual cooperation of the push rod and the chute. A torsion spring is arranged in the rotating column. One end of the torsion spring is connected to the rotating column, and the other end is connected to the bottom plate.

5. The engine water tank test bench according to claim 4, wherein: The chute includes a steering groove and a reset groove which are spirally arranged coaxially with the rotating column. The pitch of the steering groove is smaller than the pitch of the reset groove. The upper and lower ends of the steering groove and the reset groove are respectively communicated through an annular groove coaxially with the rotating column.

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