Corrosion resistance testing machine for pump shell of oil pump

Abstract

The utility model relates to the technical field of oil pump manufacturing industry, and discloses a corrosion resistance testing machine for an oil pump shell, which solves the problem that the stability of the pump shell in a test box is difficult to guarantee at present, and comprises a test box, support columns are fixedly connected to the positions, close to four corners, of the bottom of the test box, and a stirring mechanism is arranged in the test box. A box cover is arranged right above the test box, a containing mechanism is arranged at the bottom of the box cover and comprises a hollowed-out frame located below the box cover, an opening is formed in the hollowed-out frame, a hollowed-out plate for blocking the opening is installed on the hollowed-out frame, a supporting block is fixedly connected to the outer side of the hollowed-out frame, and a supporting shaft is rotationally connected to the top of the supporting block; according to the utility model, through the cooperation between the supporting shaft and the sleeve plate as well as between the outer gear and the toothed plate, the hollow-out plate can rotate conveniently to block the opening in the hollow-out frame, and the pump shell can be limited and prevented from falling off from the hollow-out frame, so that the stability of the pump shell in the test box can be ensured conveniently.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil pump manufacturing industry, specifically an oil pump casing corrosion resistance testing machine. Background Technology

[0002] In modern industry, oil pumps are widely used in various fields, such as petrochemicals, automobile manufacturing, and shipbuilding. As a key component of the oil pump, the performance of the pump casing directly affects the overall reliability and service life of the pump. In actual working environments, the pump casing often comes into contact with various corrosive media, such as sulfides and acidic substances in petroleum and salt in seawater. These corrosive media can erode the pump casing material, causing corrosion, wear, and even perforation on the surface of the pump casing. This can affect the normal operation of the oil pump, leading to problems such as leakage and reduced efficiency. In severe cases, it can even cause equipment failure and safety accidents. In order to ensure that the oil pump casing can operate stably for a long time in harsh working environments, it is necessary to evaluate and test its corrosion resistance.

[0003] Current technology typically involves suspending the pump casing in a test chamber containing corrosive media for extended immersion testing. This allows for observation and detection of the pump casing's corrosion under these conditions, thus assessing its corrosion resistance. However, for pump casings with irregular shapes, numerous protruding parts, or complex internal structures, it is difficult to find suitable suspension points and ensure that they are in a stable and appropriate posture during suspension. This can lead to the pump casing tilting, shaking, or rotating during the test, affecting the uniform contact between the corrosive media and the pump casing surface, and consequently impacting the accuracy of the test results. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an oil pump casing corrosion resistance testing machine, which effectively solves the problem that it is currently difficult to ensure the stability of the pump casing in the test chamber.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil pump casing corrosion resistance testing machine, including a test chamber, with support columns fixedly connected to the bottom of the test chamber near the four corners, a stirring mechanism inside the test chamber, a cover on the top of the test chamber, and a receiving mechanism at the bottom of the cover;

[0006] The housing mechanism includes a perforated frame located below the lid, with an opening in the frame. A perforated plate is installed on the frame to seal the opening. A support block is fixedly connected to the outside of the frame, and a support shaft is rotatably connected to the top of the support block. A sleeve plate is fixedly fitted onto the outside of the support shaft, and the perforated plate is fixed to the outside of the sleeve plate. An external gear is fixedly installed on the outside of the support shaft above the perforated frame. A base plate is fixedly connected to the bottom of the lid, and a toothed plate is fixedly connected to the side of the base plate near the support shaft. The toothed plate meshes with the external gear. Two guide posts are symmetrically fixedly connected to the bottom of the lid, and guide plates are movably fitted onto the outside of each guide post. The perforated frame is fixed between the two guide plates.

[0007] Preferably, a positioning cylinder is fixedly sleeved on the outer side of each of the two guide posts, and the two guide plates abut against the two positioning cylinders respectively.

[0008] Preferably, an L-shaped seat is fixedly installed on the top of the box cover, a drive motor is fixedly installed on the L-shaped seat, a drive shaft is fixedly connected to the drive motor, the bottom end of the drive shaft passes through the box cover and is fixedly connected to the chassis, a side block is fixedly connected to the outside of the hollow frame, a drive rod is rotatably connected to the bottom of the side block, and the end of the drive rod away from the side block is rotatably connected to the bottom of the chassis.

[0009] Preferably, the stirring mechanism includes a mounting plate located at the bottom of the test chamber. The mounting plate is fixedly sleeved on the outside of each support column. A stirring motor is fixedly installed on the top of the mounting plate. A drive shaft is fixedly connected to the stirring motor. The top end of the drive shaft extends into the interior of the test chamber. Multiple stirring blades, all located inside the test chamber, are fixedly connected to the outside of the drive shaft.

[0010] Preferably, the top of the mounting plate is fixedly connected with multiple driven shafts at equal angles, and a driven gear is fixedly installed on the outer side of each driven shaft. A driving gear is fixedly installed on the outer side of the driving shaft, and each driven gear meshes with the driving gear.

[0011] Preferably, the top end of the driven shaft extends into the interior of the test chamber, and a plurality of stirring rods, all located inside the test chamber, are fixedly connected to the outside of the driven shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Through the cooperation between the drive motor, drive shaft, chassis, drive rod, side block, guide plate, guide column and positioning cylinder, the hollow frame can move horizontally to move the pump shell inside to the top of the test chamber. Through the cooperation between the support shaft and sleeve plate and the external gear and toothed plate, the hollow plate can rotate to seal the opening on the hollow frame, which can limit the pump shell to prevent it from falling out of the hollow frame, thus ensuring the stability of the pump shell in the test chamber.

[0014] 2. The stirring motor, drive shaft, drive gear, driven gear, and driven shaft facilitate the rotation of the stirring blades and stirring rod. When the pump casing inside the hollow frame is completely immersed in the corrosive medium in the test chamber, it can stir the corrosive medium around the pump casing, so that the corrosive medium can be evenly distributed, thereby ensuring that all parts of the pump casing surface are subjected to the same corrosive effect, improving the accuracy and reliability of the test. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of the oil pump casing corrosion resistance testing machine of this utility model;

[0018] Figure 2 This is a schematic diagram of the receiving mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the base plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the chassis structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the stirring mechanism of this utility model.

[0022] In the diagram: 1. Test chamber; 2. Containing mechanism; 201. Hollow frame; 202. Guide plate; 203. Chassis; 204. Drive shaft; 205. Drive motor; 206. L-shaped seat; 207. Guide column; 208. Positioning cylinder; 209. Base plate; 2010. Hollow plate; 2011. Toothed plate; 2012. External gear; 2013. Sleeve plate; 2014. Support block; 2015. Support shaft; 2016. Drive rod; 2017. Side block; 3. Stirring mechanism; 301. Mounting plate; 302. Driven shaft; 303. Stirring motor; 304. Drive gear; 305. Driven gear; 306. Stirring blade; 307. Stirring rod; 308. Drive shaft; 4. Box cover; 5. Support column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1 The present invention relates to an oil pump casing corrosion resistance testing machine, including a test chamber 1. Support columns 5 are fixedly connected to the bottom of the test chamber 1 near the four corners. A stirring mechanism 3 is provided inside the test chamber 1. A cover 4 is provided on the top of the test chamber 1. A receiving mechanism 2 is provided at the bottom of the cover 4.

[0025] Specifically, by Figure 2-4 The receiving mechanism 2 includes a perforated frame 201 located below the cover 4. The perforated frame 201 has an opening, and a perforated plate 2010 is installed on the perforated frame 201 to seal the opening. A support block 2014 is fixedly connected to the outer side of the perforated frame 201. A support shaft 2015 is rotatably connected to the top of the support block 2014. A sleeve plate 2013 is fixedly sleeved on the outer side of the support shaft 2015. The perforated plate 2010 is fixed to the outer side of the sleeve plate 2013. An external gear 2012 located above the perforated frame 201 is fixedly installed on the outer side of the support shaft 2015. A base plate 209 is fixedly connected to the bottom of the cover 4. A toothed plate 2011 is fixedly connected to the side of the base plate 209 near the support shaft 2015. The toothed plate 2011 meshes with the external gear 2012. Two guide posts 207 are symmetrically fixedly connected to the bottom of the cover 4. Guide plates 202 are movably sleeved on the outer side of each guide post 207. A hollow frame 201 is fixed between the two guide plates 202. Positioning cylinders 208 are fixedly sleeved on the outer side of each guide post 207. The two guide plates 202 abut against the two positioning cylinders 208 respectively. An L-shaped seat 206 is fixedly installed on the top of the box cover 4. A drive motor 205 is fixedly installed on the L-shaped seat 206. A drive shaft 204 is fixedly connected to the drive motor 205. The bottom end of the drive shaft 204 passes through the box cover 4 and is fixedly connected to the chassis 203. A side block 2017 is fixedly connected to the outer side of the hollow frame 201. A drive rod 2016 is rotatably connected to the bottom of the side block 2017. The end of the drive rod 2016 away from the side block 2017 is rotatably connected to the bottom of the chassis 203. A cylinder is installed on the top of the box cover 4 to facilitate the lifting and lowering of the box cover 4.

[0026] In operation, the pump casing is first placed inside the hollow frame 201. Then, the drive motor 205 is started, which drives the drive shaft 204 to rotate and the chassis 203 to rotate. The hollow frame 201 is moved by the drive rod 2016 and the side block 2017. At the same time, the two guide plates 202 slide along the two guide posts 207 to support and limit the hollow frame 201 to ensure its stability during movement. Since the external gear 2012 meshes with the toothed plate 2011, the hollow plate 2010 rotates as the hollow frame 201 moves. When the two guide plates 202 abut against the two positioning cylinders 208, the hollow frame 201 is located directly above the test chamber 1. At the same time, the hollow plate 2010 seals the opening on the hollow frame 201, limiting the pump casing to prevent it from falling out of the hollow frame 201, and finally ensuring the stability of the pump casing in the test chamber 1.

[0027] Specifically, by Figure 5 The stirring mechanism 3 includes a mounting plate 301 located at the bottom of the test chamber 1. The mounting plate 301 is fixedly sleeved on the outside of each support column 5. A stirring motor 303 is fixedly mounted on the top of the mounting plate 301. A drive shaft 308 is fixedly connected to the stirring motor 303. The top end of the drive shaft 308 extends into the interior of the test chamber 1. Multiple stirring blades 306, all located inside the test chamber 1, are fixedly connected to the outside of the drive shaft 308. Multiple driven shafts 302 are fixedly connected to the top of the mounting plate 301 at equal angles. A driven gear 305 is fixedly mounted on the outside of each driven shaft 302. A drive gear 304 is fixedly mounted on the outside of the drive shaft 308. Each driven gear 305 meshes with the drive gear 304. The top end of the driven shaft 302 extends into the interior of the test chamber 1. Multiple stirring rods 307, all located inside the test chamber 1, are fixedly connected to the outside of the driven shaft 302.

[0028] In operation, when the pump casing within the perforated frame 201 is completely immersed in the corrosive medium within the test chamber 1, the perforated frame 201 is positioned between each driven shaft 302 and above the drive shaft 308. First, the stirring motor 303 is started, driving the drive shaft 308 to rotate. Since the driven gear 305 meshes with the drive gear 304, it drives the driven shaft 302 to rotate, achieving simultaneous rotation of the stirring blades 306 and the stirring rod 307 to stir the corrosive medium around the pump casing, ensuring uniform distribution of the corrosive medium. Finally, it ensures that all parts of the pump casing surface are subjected to the same corrosive effect, improving the accuracy and reliability of the test.

Claims

1. A corrosion resistance testing machine for oil pump casings, comprising a test chamber (1), characterized in that: The bottom of the test chamber (1) is fixedly connected to the four corners of the bottom with support columns (5), the test chamber (1) is equipped with a stirring mechanism (3), the test chamber (1) is equipped with a box cover (4) on the top, and the bottom of the box cover (4) is equipped with a receiving mechanism (2). The receiving mechanism (2) includes a hollow frame (201) located below the box cover (4). The hollow frame (201) has an opening. A hollow plate (2010) is installed on the hollow frame (201) to seal the opening. A support block (2014) is fixedly connected to the outside of the hollow frame (201). A support shaft (2015) is rotatably connected to the top of the support block (2014). A sleeve plate (2013) is fixedly sleeved on the outside of the support shaft (2015). The hollow plate (2010) is fixed to the outside of the sleeve plate (2013). The outside of the support shaft (2015) is fixed to the outside of the support shaft (2015). An external gear (2012) is fixedly installed above the hollow frame (201). A base plate (209) is fixedly connected to the bottom of the box cover (4). A toothed plate (2011) is fixedly connected to the side of the base plate (209) near the support shaft (2015). The toothed plate (2011) meshes with the external gear (2012). Two guide posts (207) are symmetrically fixedly connected to the bottom of the box cover (4). Guide plates (202) are movably sleeved on the outer side of the two guide posts (207). The hollow frame (201) is fixed between the two guide plates (202).

2. The oil pump casing corrosion resistance testing machine according to claim 1, characterized in that: The outer sides of the two guide posts (207) are fixedly sleeved with positioning cylinders (208), and the two guide plates (202) abut against the two positioning cylinders (208) respectively.

3. The oil pump casing corrosion resistance testing machine according to claim 1, characterized in that: An L-shaped seat (206) is fixedly installed on the top of the box cover (4). A drive motor (205) is fixedly installed on the L-shaped seat (206). A drive shaft (204) is fixedly connected to the drive motor (205). The bottom end of the drive shaft (204) passes through the box cover (4) and is fixedly connected to the chassis (203). A side block (2017) is fixedly connected to the outside of the hollow frame (201). A drive rod (2016) is rotatably connected to the bottom of the side block (2017). The end of the drive rod (2016) away from the side block (2017) is rotatably connected to the bottom of the chassis (203).

4. The oil pump casing corrosion resistance testing machine according to claim 1, characterized in that: The stirring mechanism (3) includes a mounting plate (301) located at the bottom of the test chamber (1). The mounting plate (301) is fixedly sleeved on the outside of each support column (5). A stirring motor (303) is fixedly installed on the top of the mounting plate (301). A drive shaft (308) is fixedly connected to the stirring motor (303). The top end of the drive shaft (308) extends into the interior of the test chamber (1). Multiple stirring blades (306) located inside the test chamber (1) are fixedly connected to the outside of the drive shaft (308).

5. The oil pump casing corrosion resistance testing machine according to claim 4, characterized in that: The top of the mounting plate (301) is fixedly connected with multiple driven shafts (302) at equal angles. Each driven shaft (302) is fixedly mounted with a driven gear (305) on its outer side. The drive shaft (308) is fixedly mounted with a drive gear (304) on its outer side. Each driven gear (305) meshes with the drive gear (304).

6. The oil pump casing corrosion resistance testing machine according to claim 5, characterized in that: The top of the driven shaft (302) extends into the interior of the test chamber (1), and multiple stirring rods (307) located inside the test chamber (1) are fixedly connected to the outside of the driven shaft (302).

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