Automobile water pump shell sealing performance detection device

Abstract

The utility model belongs to the technical field of water pump shell detection, and particularly relates to an automobile water pump shell sealing performance detection device, which comprises a workbench, a frame body, a water tank, a push cylinder, a butt joint cylinder, a sealing plug, a stand column, a lifting plate, an extension plate, a vertical plate, a toothed bar, a rotating shaft, a gear, a swing rod, a roller, an extrusion convex strip, a limiting top plate, a spring and the like. A frame body is arranged on the workbench, a water tank is fixed to the frame body, a butt joint cylinder is arranged in the water tank, the butt joint cylinder is connected with the pump shell body through a pushing air cylinder, and preliminary sealing is achieved through a first sealing plug. The lifting plate is slidably installed through the stand column, the pump shell body arranged on the lifting plate is fixed through the boss and the positioning bolt, and it is ensured that the position is accurate. A first vertical plate and a second vertical plate are installed on the extension plate, a toothed bar is connected with a gear through a rotating shaft, and a second sealing plug is installed at the end of the toothed bar to seal a drainage pipe opening of the pump shell body; a swing rod at the end of the rotating shaft is matched with the roller to extrude the protruding strip, and automatic adjusting and sealing are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water pump shell detection technical field, concretely relates to a car water pump shell sealing detection device. BACKGROUND

[0002] The car water pump is as the important component in the vehicle cooling system, and its main function is circulating coolant to maintain the normal working temperature of engine. The sealing of water pump shell is directly related to the overall performance of cooling system and the running stability of vehicle. In prior art, the common water pump shell sealing detection method mainly includes the following several kinds:

[0003] 1. Visual inspection method: through artificial visual inspection of water pump shell inlet and outlet pipe and sealing part, judge whether there is water leakage phenomenon. The method is simple, but depends on the experience of operator, is easy to produce missed detection or misjudgment, and the efficiency is lower.

[0004] 2. Pressure test method: the water pump shell is placed under specific pressure, and the sealing is judged by observing the pressure change. This method needs special pressure equipment, and the operation is complex, and it is difficult to realize automatic detection, which affects the detection efficiency and consistency.

[0005] 3. Bubble detection method: the water pump shell is immersed in water, and the sealing is judged by observing whether there is bubble generation by passing gas into the interior. Although the method is more intuitive, but lacks automatic control, and the detection process depends on manual operation, and it is difficult to realize the detection requirement of high efficiency and high precision.

[0006] Although the above method can realize the detection of water pump shell sealing to some extent, but still has many deficiencies. The specific performance is as follows:

[0007] Low detection efficiency: the traditional method depends on manual operation, and the detection speed is slow, and it is difficult to meet the demand of large-scale production and rapid detection.

[0008] The existing detection device is semi-automatic or manual operation to block the inlet and outlet pipe of pump shell, and it is difficult to realize automatic detection, increases the labor cost and reduces the detection efficiency. UTILITY MODEL CONTENT

[0009] In view of the problems in prior art, the utility model aims at providing a car water pump shell sealing detection device, which can realize, improve detection efficiency and precision, realize automatic control and the structure is simple.

[0010] In order to realize the above object, the utility model provides the following technical scheme:

[0011] The utility model provides a kind of automobile water pump shell leakproofness detection device, including workbench and pump shell main part, it is characterized by: the upper surface of the workbench is provided with frame body, the center of the upper surface of the workbench is fixed with water tank, the frame body straddles above water tank, the inside hollow top of the water tank is open, the center of the upper surface of the frame body is fixed with push air cylinder, the output end of the push air cylinder is arranged downward, and bottom end is equipped with docking barrel, the inside hollow of the docking barrel is connected with air pump by hose, the first sealing plug is installed at the bottom of the docking barrel, the first sealing plug is conical structure and bottom is equipped with air hole with the inside communication of docking barrel, the lower surface of the inside of the water tank is provided with stand at four corners, slidingly installed with lifting plate between four stands, the pump shell main part is placed on the upper surface of lifting plate, the surface of the lifting plate is provided with boss compatible with the inside of pump shell main part, the surface of the lifting plate is provided with the positioning peg for fixing pump shell main part, the first sealing plug is blocked and sealed to the water inlet of the top of pump shell main part, one side of the lifting plate is provided with extension plate, the upper surface of the extension plate is welded with two first vertical plates, slidingly penetrates the toothed rod between two first vertical plates, the toothed rod tooth surface is downward, the second sealing plug is installed at the end of the toothed rod, and the second sealing plug is blocked and sealed to the drain pipe of the pump shell main body.

[0012] Further, the surface of the extension plate is also provided with two second vertical plates, the second vertical plates are staggered with the first vertical plates, and a rotating shaft is rotatably installed between the two second vertical plates.

[0013] Further, the rotating shaft is arranged below the toothed rod, and the rotating shaft is arranged vertically with the toothed rod, the surface of the rotating shaft is provided with a gear, and the gear is engaged with the toothed rod.

[0014] Further, the rotating shaft penetrates the second vertical plate at one end, the end of the rotating shaft is provided with a swing rod, the swing rod is arranged vertically with the axis of the rotating shaft, and a roller is rotatably installed at the end of the swing rod.

[0015] Further, the inside of one side of the water tank is vertically fixed with extrusion convex strip, the roller is in contact with the surface of the extrusion convex strip, and the top of the extrusion convex strip is provided with a buffer inclined surface.

[0016] Further, the top of the stand is fixed with a limiting top plate, the limiting top plate is higher than the upper surface of the water tank, the surface of the stand is provided with a spring, and the top of the spring is in contact with the lower surface of the lifting plate.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The automobile water pump shell sealing detection device has the advantages of structural optimization and function integration, and significantly improves the detection efficiency.

[0019] The device has significant advantages in detection accuracy. By introducing a precise push cylinder and a gear transmission system, the two inlet and outlet ports are automatically sealed, reducing errors caused by manual operation. At the same time, the first sealing plug and the second sealing plug are made of rubber material, which can deform moderately after being pressed, ensuring the reliability and consistency of the sealing effect, improving the accuracy and repeatability of the detection results, and simplifying the operation steps of feeding and discharging, so that the device is more convenient during detection.

[0020] In addition, the detection device of the utility model has simple structure, reasonable layout of parts, and reduces the complexity of the equipment. Each part such as frame, push cylinder, butt joint barrel, lifting plate, tooth rod, shaft, swing rod, etc. is optimized and designed, which ensures the stability and durability of the device. Through modular design, the cooperation between each part is tight, maintenance and replacement are convenient, and the maintenance cost and use difficulty of the equipment are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 It is a water tank internal front view structure schematic diagram of the utility model;

[0023] Figure 3 It is a water tank internal three-dimensional structure schematic diagram of the utility model;

[0024] Figure 4 It is a pump shell and lifting plate installation structure schematic diagram of the utility model;

[0025] Figure 5 It is a Figure 4 A zone enlarged structure schematic diagram of the utility model.

[0026] In the drawings, the component list represented by each number is as follows:

[0027] 1, workbench;101, frame body;102, water tank;1021, extruded protrusions;2, push cylinder;201, butt cylinder;202, first sealing plug;3, stand column;301, limiting top plate;4, spring;5, lifting plate;501, boss;502, positioning bolt;503, extension plate;504, first vertical plate;505, second vertical plate;6, pump shell;7, gear rod;71, second sealing plug;8, rotating shaft;9, gear;10, swing rod;11, roller. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically explained below by combining with examples. It should be understood that the following text is only used to describe one or several specific implementation manners of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0029] REFERENCE Figures 1-5As shown, a kind of automobile water pump shell leak detection device, including workbench 1 and pump shell main body 6, it is characterized in that: the upper surface of workbench 1 is provided with frame body 101, frame body 101 is made of firm and durable material, to ensure the stability and reliability of overall structure;The center of the upper surface of workbench 1 is fixed with water tank 102, water tank 102 is made of corrosion-resistant material, and the inside is designed as a hollow structure, the top is open, it is convenient for the filling of water and is provided with drain pipe at the bottom of water tank 102 to facilitate drainage, control valve can be installed inside the drain pipe, frame body 101 straddles above water tank 102, to ensure that water tank 102 is stable during detection and does not shift;The inside of water tank 102 is hollow, and the top is open, to facilitate the movement of lifting plate 5, lifting plate 5 moves beyond the height of water tank 102 when feeding and discharging, to facilitate operation;The center of the upper surface of frame body 101 is fixed with push air cylinder 2, push air cylinder 2 is vertically arranged, push air cylinder 2 adopts high-precision pneumatic control technology, to ensure the accuracy and response speed of cylinder action;The output end of push air cylinder 2 is downwardly arranged, to ensure that the acting force of cylinder can be effectively transmitted to lifting plate 5;And the bottom end is provided with butt joint cylinder 201, butt joint cylinder 201 is hollow inside, and is connected with air pump through hose, to ensure that gas can be uniformly injected;Butt joint cylinder 201 is provided with first sealing plug 202 at the bottom, first sealing plug 202 is conical structure, and the bottom is provided with air hole communicated with the inside of butt joint cylinder 201, when first sealing plug 202 is moved downward to seal the water inlet port of pump shell 6, gas can be injected into the inside of butt joint cylinder 201 through external hose, and the inside of pump shell 6 is inflated through the air hole at the bottom;The lower surface of the inside of water tank 102 is provided with stand column 3 at four corners, stand column 3 is made of high-strength material, to ensure that the weight and movement of lifting plate 5 can be borne during detection, and only up and down movement can be carried out;Lifting plate 5 is slidably installed between the four stand columns 3, the surface of lifting plate 5 is smooth, has good sliding performance, to ensure that pump shell main body 6 can be stably placed;Pump shell main body 6 is placed on the upper surface of lifting plate 5;The surface of lifting plate 5 is provided with boss 501 matched with the inside of pump shell main body 6, boss 501 is designed to accurately match the internal structure of pump shell main body 6, to ensure accurate positioning;The surface of lifting plate 5 is provided with positioning bolt 502 for fixing pump shell main body 6, positioning bolt 502 is made of high-strength alloy material, to ensure the stability of pump shell main body 6 during detection;First sealing plug 202 blocks and seals the water inlet at the top of pump shell main body 6, to ensure that there is no air leakage during detection;One side of lifting plate 5 is provided with extension plate 503, to reduce the distance from the inner wall of water tank 102;Two first vertical plates 504 are welded on the upper surface of extension plate 503, and the first vertical plates 504 are fixedly connected with extension plate 503;Toothed rod 7 is slidably penetrated between the two first vertical plates 504, toothed rod 7 is made of high-strength steel, and the tooth surface is designed downward to ensure good engagement with gear 9;The end of the rack 7 is provided with a second sealing plug 71 made of rubber material, which can be moderately deformed after being pressed to effectively seal the drain port of the pump housing body 6.

[0030] Referring to Figure 4 and Figure 5 As shown in the drawings, the surface of the extension plate 503 is also provided with two second vertical plates 505, which are staggered with the first vertical plates 504; the two second vertical plates 505 are rotatably installed with a rotating shaft 8, which is arranged below the rack 7 and perpendicular to the rack 7, so as to ensure that the gear 9 can effectively engage with the rack 7; the rotating shaft 8 is provided with the gear 9, which is engaged with the rack 7; the gear 9 is designed to have a number of teeth and a tooth shape that perfectly match the rack 7 to achieve precise motion transmission; the gear 9 is made of high-strength alloy to ensure that it is not easily worn out under high-frequency operation, thereby prolonging the service life of the device.

[0031] Referring to Figure 4 and Figure 5 As shown in the drawings, one end of the rotating shaft 8 penetrates through the second vertical plate 505 to ensure that the rotating shaft 8 remains in a fixed position during rotation; the rotating shaft 8 is provided at the end with a swing rod 10, which is arranged perpendicular to the axis of the rotating shaft 8 and is designed to be able to swing flexibly to respond to dynamic changes during detection; the swing rod 10 is rotatably installed at the end with a roller 11 made of wear-resistant rubber material, which ensures that the contact surface with the extrusion ridge 1021 has good friction and durability; the design of the roller 11 ensures that it can run smoothly during detection without generating additional noise and vibration.

[0032] Referring to Figure 1 and Figure 2 As shown in the drawings, the inside of one side of the water tank 102 is vertically fixed with an extrusion ridge 1021 designed in a convex shape to be in close contact with the roller 11 during detection to ensure that it will not slip under the action of the roller 11; the top of the extrusion ridge 1021 is provided with a buffer slope designed in a bevel shape to reduce the impact force of the roller 11 and protect the swing rod 10 and the rotating shaft 8 from excessive mechanical stress; the design of the buffer slope can also smoothly guide the motion trajectory of the swing rod 10 to ensure the stability and reliability of the device during detection; the buffer slope can guide and buffer the roller 11 when the lifting plate 5 moves downward.

[0033] Referring to Figure 2 and Figure 3As shown, the top of the column 3 is fixed with a limit top plate 301, the limit top plate 301 is higher than the upper surface of the water tank 102, and is designed to provide physical blocking when the lifting plate 5 moves to a certain height, preventing the lifting plate 5 from moving up excessively; the limit top plate 301 is made of high-strength material to ensure that it is not easily deformed during detection; the surface of the column 3 is sleeved with a spring 4, the spring 4 is made of high-elasticity material to ensure that it can provide sufficient reaction force when the lifting plate 5 moves down; the top of the spring 4 is in contact with the lower surface of the lifting plate 5, and is designed to uniformly distribute pressure to ensure smooth movement of the lifting plate 5 during upward and downward movement; the installation mode of the spring 4 ensures that the lifting plate 5 is automatically reset above the liquid level after the detection process, thereby improving the overall automation level and operation convenience of the device.

[0034] The working principle of the utility model is: a proper amount of water is poured into the water tank 102, and the lifting plate 5 is placed above the liquid level due to the existence of the spring 4, so as to facilitate the up-down pump shell body 6, the pump shell body 6 is installed on the lifting plate 5 through the boss 501 and the positioning bolt 502, and gas is injected into the inside of the butt joint cylinder 201 through the hose, at this time, the lifting plate 5 is placed above, the rotating shaft 8 is also placed above the water tank 102, and the swing rod 10 can be arbitrarily rotated; during detection, the butt joint cylinder 201 is controlled to move down, so that the first sealing plug 202 at the bottom blocks and seals the water inlet of the pump shell body 6, and continuous downward movement can drive the lifting plate 5 to move down and immerse in water; when the lifting plate 5 moves down, the height of the rotating shaft 8 also moves down, at this time, the swing rod 10 is limited by the extrusion convex strip 1021, so that the swing rod 10 swings and tends to be perpendicular, thereby driving the rotating shaft 8 to rotate, the gear 9 on the surface of the rotating shaft 8 meshes with the toothed rod 7 to drive the second sealing plug 71 to move to the pump shell body 6, so as to block and seal the water inlet of the pump shell body 6; the first sealing plug 202 and the second sealing plug 71 are made of rubber material and have the same structure, and can be deformed to a certain extent after being extruded, so as to ensure sealing, thereby realizing the effect of automatic sealing during detection, without the need to additionally increase sealing equipment for the water inlet and outlet of the pump shell body 6, improving the convenience during detection, and keeping stable and not being affected by water flow movement; after the pump shell body 6 is completely immersed in water, gas is injected into the inside, and whether bubbles are generated in water is observed to judge the sealing property of the pump shell body 6;

[0035] After detection, the docking cylinder 201 is lifted up. Due to the presence of the spring 4, the lifting plate 5 will also move up when the docking cylinder 201 moves up, until it is blocked by the limiting top plate 301. Continuous upward movement of the docking cylinder 201 can make the first sealing plug 202 no longer block the water inlet of the pump shell body 6. In this process, the height of the lifting plate 5 exceeds the extrusion convex strip 1021, at this time the swing rod 10 is not limited by extrusion, and the second sealing plug 71 can be controlled by pulling the swing rod 10 to no longer seal the drain port of the pump shell body 6, so as to facilitate the disassembly of the pump shell body 6, and facilitate the disassembly work after detection.

[0036] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A device for testing the sealing performance of an automotive water pump housing, comprising a workbench (1) and a pump housing body (6), characterized in that: A frame (101) is provided on the upper surface of the workbench (1). A water tank (102) is fixed at the center of the upper surface of the workbench (1). The frame (101) spans across the water tank (102). The water tank (102) is hollow inside with an open top. A push cylinder (2) is fixed at the center of the upper surface of the frame (101). The output end of the push cylinder (2) is set downward, and a docking cylinder (201) is installed at the bottom. The docking cylinder (201) is hollow inside and connected to an air pump through a hose. A first sealing plug (202) is installed at the bottom of the docking cylinder (201). The first sealing plug (202) has a conical structure and an air hole at the bottom that communicates with the inside of the docking cylinder (201). Columns (3) are provided at the four corners of the lower surface inside the water tank (102). Between the four columns (3) A lifting plate (5) is slidably installed. The pump housing body (6) is placed on the upper surface of the lifting plate (5). The surface of the lifting plate (5) is provided with a boss (501) that is adapted to the interior of the pump housing body (6). The surface of the lifting plate (5) is provided with a positioning bolt (502) for fixing the pump housing body (6). The first sealing plug (202) blocks and seals the water inlet at the top of the pump housing body (6). An extension plate (503) is provided on one side of the lifting plate (5). Two first upright plates (504) are welded to the upper surface of the extension plate (503). A toothed rod (7) slides through the two first upright plates (504). The toothed rod (7) has its teeth facing downward. A second sealing plug (71) is installed at the end of the toothed rod (7). The second sealing plug (71) blocks and seals the drain pipe of the pump housing body (6).

2. The automotive water pump housing sealing performance testing device according to claim 1, characterized in that: The surface of the extension plate (503) is also provided with two second vertical plates (505), which are staggered with the first vertical plate (504), and a rotating shaft (8) is rotatably installed between the two second vertical plates (505).

3. The automotive water pump housing sealing performance testing device according to claim 2, characterized in that: The rotating shaft (8) is placed below the rack (7) and is perpendicular to the rack (7). A gear (9) is provided on the surface of the rotating shaft (8) and meshes with the rack (7).

4. The automotive water pump housing sealing performance testing device according to claim 3, characterized in that: One end of the rotating shaft (8) passes through the second vertical plate (505), and a swing rod (10) is provided at the end of the rotating shaft (8). The swing rod (10) is perpendicular to the axis of the rotating shaft (8), and a roller (11) is rotatably installed at the end of the swing rod (10).

5. The automotive water pump housing sealing performance testing device according to claim 4, characterized in that: The water tank (102) has a vertically fixed extrusion rib (1021) on one side, and the roller (11) is in contact with the surface of the extrusion rib (1021). A buffer slope is provided on the top of the extrusion rib (1021).

6. The automotive water pump housing sealing performance testing device according to claim 1, characterized in that: A limiting plate (301) is fixed to the top of the column (3). The limiting plate (301) is higher than the upper surface of the water tank (102). A spring (4) is sleeved on the surface of the column (3). The top of the spring (4) is in contact with the lower surface of the lifting plate (5).

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