An online testing mechanism for EOP oil pump sealing performance

Abstract

This invention relates to the field of oil pump sealing performance testing technology, and provides an online sealing performance testing mechanism for an EOP oil pump, including a frame, a pressure detector, and a rectangular box. The pressure detector is mounted on the frame, and a limiting component is mounted on the rectangular box for limiting and fixing the oil pump. A buffer component is mounted on the rectangular box for buffering the movement of the oil pump when the oil pump pressure is too high. The limiting component includes a telescopic motor mounted on the rectangular box, an elastic telescopic column mounted on the free end of the telescopic motor, a cover plate mounted on the elastic telescopic column, an elastic telescopic rod mounted on the cover plate, and an elastic telescopic seat mounted on the rectangular box. This achieves flexible limiting and overload buffering protection for the EOP oil pump, preventing internal expansion and damage to the oil pump due to excessive air pressure or rigid clamping, while also avoiding damage to the oil pump housing due to excessive limiting pressure.

Description

Technical Field

[0001] This invention relates to the field of oil pump sealing performance testing technology, and more particularly to an online sealing performance testing mechanism for EOP oil pumps. Background Technology

[0002] As a core component in modern automotive powertrain systems and industrial equipment, the EOP (Electrical Operation Part) is widely used in various transmissions, engine lubrication and cooling systems, and hydraulic systems. It mainly undertakes key functions such as lubricant delivery, cooling, and hydraulic drive. Its operational reliability directly determines the operational stability, energy economy, and service life of the entire equipment.

[0003] Existing testing technologies suffer from several drawbacks. Firstly, the EOP (Electronic Operating Panel) pump installation area is often cramped, making manual docking inconvenient and prone to errors. This hinders the automatic and precise docking of the EOP pump with the testing components, leading to distorted test results and increased workload for operators. Secondly, the lack of effective limiting and protection mechanisms makes the EOP pump susceptible to displacement during testing, especially when internal pressure is too high. Rigid fixing can cause internal expansion and damage, and accidental release of the limiting mechanism during testing could result in the pump flying out, posing a safety hazard. Thirdly, the cumbersome process of disassembling and reassembling protective components, involving bolts and nuts, hinders emergency repairs and routine maintenance. Summary of the Invention

[0004] The purpose of this invention is to address the problems in existing technologies, such as congested installation areas for EOP oil pumps, inconvenient manual docking operations, easy docking deviations, difficulty in achieving automatic and accurate docking between EOP oil pumps and testing components, leading to distorted test results and increased workload for operators; the lack of effective limiting and protection mechanisms makes EOP oil pumps prone to displacement during testing, especially when the internal air pressure of the oil pump is too high, the rigid fixing method can cause internal expansion and damage to the oil pump, and if the limiting mechanism is accidentally released during testing, it may cause safety accidents such as the oil pump flying out, resulting in poor safety; in addition, the disassembly and assembly of protective components requires cumbersome removal of bolts and nuts, which is inconvenient for emergency repairs and daily maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an online EOP oil pump sealing performance testing mechanism, comprising a frame, a pressure detector, and a rectangular box. The pressure detector is mounted on the frame, and the rectangular box is mounted on the frame. The online EOP oil pump sealing performance testing mechanism includes a placement mechanism, which includes a limiting component and a buffer component. The limiting component is mounted on the rectangular box for limiting and fixing the oil pump, and the buffer component is mounted on the rectangular box for buffering the movement of the oil pump when the oil pump pressure is too high.

[0006] In a preferred embodiment, the limiting component includes a telescopic motor mounted on a rectangular box, an elastic telescopic column mounted on the free end of the telescopic motor, a cover plate mounted on the elastic telescopic column, an elastic telescopic rod mounted on the cover plate, and an elastic telescopic seat mounted on the rectangular box.

[0007] The technical advantage of adopting the above-mentioned further solution is that when the elastic telescopic column is used to limit the EOP oil pump by the cover plate, the EOP oil pump will not be subjected to hard damage due to strong pressure.

[0008] In a preferred embodiment, the buffer component includes an arc-shaped block mounted on the elastic telescopic seat, a placement box mounted on the elastic telescopic seat, and an elastic telescopic buffer column mounted on the rectangular box. The elastic telescopic column contacts the arc-shaped block, the arc-shaped block contacts the placement box, and the elastic telescopic buffer column contacts the placement box.

[0009] The technical effect of adopting the above-mentioned further solution is that: installing the elastic telescopic buffer column can provide a buffer distance when the EOP oil pump air pressure on the placement box is too high.

[0010] In a preferred embodiment, the sealing mechanism includes a vertical rack mounted on the cover plate, a gear mounted on the rectangular box, a flat rack mounted on the rectangular box, and a telescopic block mounted on the rectangular box, wherein the telescopic block is fitted with a pipe for the air pressure detector.

[0011] The technical effect of adopting the above-mentioned further solution is that the pipeline used to drive the air pressure detector is connected to the EOP oil pump.

[0012] In a preferred embodiment, the sealing mechanism further includes a connecting rod mounted on the elastic telescopic seat, a rounded corner plate mounted on the rectangular box, and an arc block mounted on the rounded corner plate. A first spring is installed between the rounded corner plate and the rectangular box. The connecting rod contacts the arc block, and the cover plate contacts the rounded corner plate.

[0013] The technical effect of adopting the above-mentioned further solution is that the rounded corner plate is used for auxiliary detection when the cover plate is fixed.

[0014] In a preferred embodiment, the protection mechanism includes a baffle mounted on the rectangular box, a connecting rod mounted on the rack, a protective plate mounted on the rectangular box, a locking block mounted on the protective plate, and an L-plate mounted on the rectangular box. The connecting rod contacts the locking block, a second spring is provided between the rack and the connecting rod, and a third spring is installed between the rectangular box and the L-plate.

[0015] The technical effect of adopting the above-mentioned further solution is that the protective plate is used to form an integral whole with the baffle, thereby completely protecting the interior of the rectangular box.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. This invention provides flexible limiting and overload buffer protection for EOP oil pumps, preventing internal expansion damage caused by excessive air pressure or rigid clamping, while also avoiding damage to the oil pump housing due to excessive limiting pressure.

[0017] 2. This invention enables automatic and precise docking between the air pressure detection interface and the oil pump, solving the problem of inconvenient docking due to space congestion, and forming a safety interlock to prevent the cover from accidentally lifting during the detection process and causing the oil pump to fly out, thus improving detection safety.

[0018] 3. This invention achieves automatic sealing protection of the detection area. At the same time, the protection plate adopts a snap-fit ​​quick-installation structure, which makes disassembly and assembly simple and quick, ensuring both safety protection and facilitating emergency repairs and daily maintenance. Attached Figure Description

[0019] Figure 1 A schematic diagram of the main structure of an online EOP oil pump sealing performance testing mechanism provided by the present invention; Figure 2 A schematic diagram of a rectangular box and telescopic motor structure for an online EOP oil pump sealing performance testing mechanism provided by the present invention; Figure 3 A schematic diagram of the cover plate and elastic telescopic seat structure of an EOP oil pump sealing online testing mechanism provided by the present invention; Figure 4 A schematic diagram of the elastic telescopic buffer column and telescopic block structure of an online EOP oil pump sealing performance testing mechanism provided by the present invention; Figure 5 This invention provides a schematic diagram of the elastic telescopic seat and placement box structure of an online EOP oil pump sealing performance testing mechanism. Figure 6 A schematic diagram of a rectangular box and connecting rod structure for an online EOP oil pump sealing performance testing mechanism provided by the present invention; Figure 7 A schematic diagram of the connecting rod and rounded corner plate structure of an online EOP oil pump sealing performance testing mechanism provided by the present invention; Figure 8 This invention provides a schematic diagram of the connecting rod and protective plate structure of an online EOP oil pump sealing performance testing mechanism.

[0020] Legend: 1. Frame; 2. Air pressure detector; 3. Rectangular box; 41. Telescopic motor; 42. Elastic telescopic column; 43. Cover plate; 44. Elastic telescopic rod; 45. Elastic telescopic seat; 46. Arc block; 47. Elastic telescopic buffer column; 48. Placement box; 51. Vertical rack; 52. Gear; 53. Flat rack; 54. Telescopic block; 55. Connecting rod; 56. Arc block; 57. Rounded corner plate; 61. Baffle; 62. Connecting rod; 63. Protective plate; 64. Locking block; 65. L-plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please see Figures 1-5 This embodiment provides an online EOP oil pump sealing performance testing mechanism, including a frame 1, a pressure detector 2, and a rectangular box 3. The pressure detector 2 is mounted on the frame 1, and the rectangular box 3 is mounted on the frame 1. The online EOP oil pump sealing performance testing mechanism includes a placement mechanism, which includes a limiting component and a buffer component. The limiting component is mounted on the rectangular box 3 to limit and fix the oil pump, and the buffer component is mounted on the rectangular box 3 to buffer the movement of the oil pump when the oil pump pressure is too high.

[0023] The specific approach is as follows: The limiting components include a telescopic motor 41 mounted on the rectangular box 3, an elastic telescopic column 42 mounted on the free end of the telescopic motor 41, a cover plate 43 mounted on the elastic telescopic column 42, an elastic telescopic rod 44 mounted on the cover plate 43, and an elastic telescopic seat 45 mounted on the rectangular box 3. The elastic telescopic column 42 is used to prevent the EOP oil pump from being hard-damaged due to strong pressure when the cover plate 43 limits the EOP oil pump.

[0024] Additionally, it should be noted that the buffer components include an arc-shaped block 46 mounted on the elastic telescopic seat 45, a placement box 48 mounted on the elastic telescopic seat 45, and an elastic telescopic buffer column 47 mounted on the rectangular box 3. The elastic telescopic buffer column 47 is used to provide a buffer distance when the EOP oil pump air pressure on the placement box 48 is too high.

[0025] It should also be noted that the elastic telescopic rod 44 is in contact with the arc-shaped block 46, the arc-shaped block 46 is in contact with the placement box 48, and the elastic telescopic buffer column 47 is in contact with the placement box 48.

[0026] It should be added that the air pressure detector 2 is an existing machine for testing the sealing of oil pumps, such as "differential pressure air tightness tester", "direct pressure air tightness tester" and "flow tester". The air pressure detector 2 adopts the differential pressure air tightness tester and has a pipe for connecting to the EOP oil pump.

[0027] As a specific implementation method, the working principle is as follows: The EOP oil pump is placed on the placement box 48 inside the frame 1, and then the placement box 48 is placed inside the elastic telescopic seat 45. The telescopic motor 41 on the frame 1 is started. When the telescopic motor 41 starts, it will drive the elastic telescopic column 42 to move. When the elastic telescopic column 42 moves, it will drive the cover plate 43 to move. When the cover plate 43 moves, it will drive the elastic telescopic rod 44 to move. When the elastic telescopic rod 44 moves, it will limit the top of the EOP oil pump. At the same time, when the elastic telescopic rod 44 moves downward, it will meet the arc on the elastic telescopic seat 45. When the elastic telescopic seat 45 contacts the arc-shaped block 46, the arc-shaped block 46 will move. When the arc-shaped block 46 moves, it will limit the placement box 48. When the internal air pressure of the EOP oil pump is too high, the EOP oil pump will move away from the air pressure detector 2. When the placement box 48 moves, it will squeeze the elastic telescopic buffer column 47, so that the placement box 48 can move, avoiding forced fixation that would cause internal expansion and damage to the EOP oil pump. At the same time, when the EOP oil pump is limited, the elastic telescopic column 42 will protect the EOP oil pump and prevent excessive pressure from affecting and damaging the EOP oil pump.

[0028] Example 2: like Figures 4-7 As shown in Example 1, the EOP oil pump sealing online testing mechanism in this embodiment further includes a sealing mechanism. As an example, the sealing mechanism is mounted on the rectangular box 3 and is used to seal the oil pump's vent holes after the oil pump is installed. The specific number of its components is shown in the figure, and the arrangement is as follows: The sealing mechanism includes a vertical rack 51 mounted on the cover plate 43, a gear 52 mounted on the rectangular box 3, a flat rack 53 mounted on the rectangular box 3, and a telescopic block 54 mounted on the rectangular box 3. The telescopic block 54 is equipped with a pipe for the air pressure detector 2, which is used to drive the pipe of the air pressure detector 2 to connect to the EOP oil pump.

[0029] It should also be noted that the sealing mechanism also includes a connecting rod 55 mounted on the elastic telescopic seat 45, a rounded corner plate 57 mounted on the rectangular box 3, and an arc block 56 mounted on the rounded corner plate 57. The rounded corner plate 57 is used for auxiliary detection when the cover plate 43 is fixed.

[0030] A spring is installed between the rounded corner plate 57 and the rectangular box 3. The connecting rod 55 contacts the arc block 56, and the cover plate 43 contacts the rounded corner plate 57.

[0031] It should also be noted that the "vertical rack 51", "gear 52" and "flat rack 53" mentioned above will be subject to routine maintenance and inspection to prevent dust accumulation, rust and other issues.

[0032] In this embodiment, when the cover plate 43 moves, it drives the vertical rack 51 to move. When the vertical rack 51 moves, it drives the gear 52 to rotate. When the gear 52 rotates, it drives the flat rack 53 to move. When the flat rack 53 moves, it drives the telescopic block 54 to move. When the telescopic block 54 moves, it drives the pipe of the air pressure detector 2 to move. When the pipe of the air pressure detector 2 moves, it performs a sealing and pressure test on the EOP oil pump, automatically connecting the EOP oil pump to the air pressure detector 2, thus avoiding congestion inside the rectangular box 3. However, this is inconvenient for docking. When the elastic telescopic seat 45 moves, it will drive the connecting rod 55 to move. When the connecting rod 55 moves downward, it will squeeze the arc block 56. When the arc block 56 is squeezed, it will drive the rounded corner plate 57 to move. This ensures that the cover plate 43 will only move downward when the EOP oil pump is completely placed on the cover plate 43. When it needs to move upward, the placement box 48 also needs to be pulled out from inside the elastic telescopic seat 45 and the cover plate 43. This prevents the cover plate 43 from moving upward and releasing the limit on the EOP oil pump while the stamping test is still in progress, which could cause the EOP oil pump to fly out.

[0033] Example 3: like Figures 4-8 As shown, based on Embodiment 2, the EOP oil pump sealing online detection mechanism in this embodiment also includes a protection mechanism. The protection mechanism is installed on the rectangular box 3 and is used to protect the external environment when the oil pump pressure is too high and a danger occurs. The protective mechanism includes a baffle 61 mounted on the rectangular box 3, a connecting rod 62 mounted on the flat rack 53, a protective plate 63 mounted on the rectangular box 3, a locking block 64 mounted on the protective plate 63, and an L-plate 65 mounted on the rectangular box 3. The protective plate 63 is used to form a whole with the baffle 61, thereby completely protecting the interior of the rectangular box 3.

[0034] The connecting rod 62 contacts the locking block 64, a second spring is installed between the flat rack 53 and the connecting rod 62, and a third spring is installed between the rectangular box 3 and the L plate 65.

[0035] It should be noted that "Spring No. 1", "Spring No. 2" and "Spring No. 3" all require normal routine maintenance.

[0036] In this embodiment, when the flat rack 53 moves, it will drive the connecting rod 62 to move. When the connecting rod 62 moves, it will drive the protective plate 63 to move. When the protective plate 63 moves, it will seal and protect the interior of the rectangular box 3 together with the baffle 61. When the arc block 46 is triggered or an unexpected situation occurs inside, the operator can move the locking block 64. When the locking block 64 moves, it will release the limit on the protective plate 63. When the limit on the protective plate 63 is released, the protective plate 63 can be pulled outward. When the protective plate 63 moves, it will contact the L plate 65. Pull out the L plate 65 and then pull out the protective plate 63, and then perform the operation. When it is necessary to put the protective plate 63 in, simply lock the protective plate 63 onto the L plate 65, so that the L plate 65 can directly lock the protective plate 63 and the locking block 64 through the tension of the spring, making the operation more convenient.

[0037] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An online sealing test mechanism for an EOP oil pump, comprising a frame (1), a pressure detector (2), and a rectangular box (3), wherein the pressure detector (2) is mounted on the frame (1), and the rectangular box (3) is mounted on the frame (1), characterized in that, The EOP oil pump sealing online testing mechanism includes a placement mechanism; The placement mechanism includes a limiting component and a buffer component. The limiting component is installed on the rectangular box (3) to limit and fix the oil pump. The buffer component is installed on the rectangular box (3) to buffer the movement of the oil pump when the oil pump pressure is too high. A sealing mechanism is installed on a rectangular box (3) to seal the air holes of the oil pump after the oil pump is installed. The protection mechanism is installed on the rectangular box (3) and is used to protect the outside when the oil pump pressure is too high and there is a danger.

2. The online EOP oil pump sealing performance testing mechanism according to claim 1, characterized in that, The limiting component includes a telescopic motor (41) mounted on a rectangular box (3), an elastic telescopic column (42) mounted on the free end of the telescopic motor (41), a cover plate (43) mounted on the elastic telescopic column (42), an elastic telescopic rod (44) mounted on the cover plate (43), and an elastic telescopic seat (45) mounted on the rectangular box (3).

3. The online EOP oil pump sealing performance testing mechanism according to claim 2, characterized in that, The buffer component includes an arc-shaped block (46) mounted on the elastic telescopic seat (45), a placement box (48) mounted on the elastic telescopic seat (45), and an elastic telescopic buffer column (47) mounted on the rectangular box (3).

4. The online EOP oil pump sealing performance testing mechanism according to claim 3, characterized in that, The elastic telescopic rod (44) contacts the arc-shaped block (46), the arc-shaped block (46) contacts the placement box (48), and the elastic telescopic buffer column (47) contacts the placement box (48).

5. The online EOP oil pump sealing performance testing mechanism according to claim 2, characterized in that, The sealing mechanism includes a vertical rack (51) mounted on the cover plate (43), a gear (52) mounted on the rectangular box (3), a flat rack (53) mounted on the rectangular box (3), and a telescopic block (54) mounted on the rectangular box (3).

6. The online EOP oil pump sealing performance testing mechanism according to claim 5, characterized in that, The sealing mechanism also includes a connecting rod (55) mounted on the elastic telescopic seat (45), a rounded corner plate (57) mounted on the rectangular box (3), and an arc block (56) mounted on the rounded corner plate (57).

7. The online EOP oil pump sealing performance testing mechanism according to claim 6, characterized in that, A spring is installed between the rounded corner plate (57) and the rectangular box (3), the connecting rod (55) contacts the arc block (56), and the cover plate (43) contacts the rounded corner plate (57).

8. The online EOP oil pump sealing performance testing mechanism according to claim 5, characterized in that, The protection mechanism includes a baffle (61) installed on the rectangular box (3), a connecting rod (62) installed on the flat rack (53), a protection plate (63) installed on the rectangular box (3), a locking block (64) installed on the protection plate (63), and an L plate (65) installed on the rectangular box (3).

9. The online EOP oil pump sealing performance testing mechanism according to claim 8, characterized in that, The connecting rod (62) contacts the locking block (64), a second spring is provided between the flat rack (53) and the connecting rod (62), and a third spring is installed between the rectangular box (3) and the L plate (65).

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