Oil pump test tool

Abstract

The utility model discloses an oil pump test tool, which comprises a bottom plate, a rack and a translation platform are respectively mounted at two ends of the surface of the bottom plate, an oil pump placement platform for placing and fixing an oil pump is arranged at the top of the translation platform, and the oil pump placement platform comprises a connecting insertion rod, a placement flat plate and a limiting insertion rod. The connecting insertion rod is connected into the translation platform and is fixedly connected with the translation platform, the placement flat plate is welded to the top of the connecting insertion rod, a translation base is arranged at the top of the rack, and a driving assembly is arranged at the top end of the translation base; the multiple sets of limiting insertion rods are in threaded connection to different positions of the top of the placement flat plate to form an oil pump limiting placement space, an oil pump is placed in the limiting placement space, the driving assembly is driven by the translation base to be meshed with an output end gear of the oil pump, and the driving assembly rotates by driving the oil pump gear.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, and in particular to a testing fixture for an oil pump. Background Technology

[0002] The oil pump is a component used to increase the oil pressure and ensure a certain amount of oil is forcibly supplied to various friction surfaces. Internal combustion engines widely use gear-type and rotor-type oil pumps. Gear-type oil pumps have a simple structure, are easy to process, are reliable in operation, have a long service life, and provide high oil pressure.

[0003] After assembly, the oil pump needs to undergo an idle test, which involves running it without oil for a short period of time to test its ability to withstand dry running and to assess its emergency performance in the event of an unexpected oil shortage, thus preventing instantaneous damage to the oil pump. Currently, the existing testing method involves the tester driving the gears of the oil pump by hand using a drive device. This testing method has low work efficiency, and long-term testing can lead to excessive fatigue of the tester's wrists due to the back force of the drive device. Therefore, an oil pump testing fixture is proposed. Utility Model Content

[0004] The problem this invention aims to solve is the low testing efficiency of oil pumps in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an oil pump testing fixture, including a base plate, with a frame and a translation platform respectively installed at both ends of the surface of the base plate. The top of the translation platform is provided with an oil pump mounting platform for mounting and fixing the oil pump. The oil pump mounting platform includes a connecting rod, a mounting plate, and a limiting rod. The connecting rod is connected and fixed inside the translation platform. The mounting plate is welded to the top of the connecting rod. Several sets of limiting rods are threaded to different positions on the top of the mounting plate. Several sets of fixed limiting rods form an oil pump limiting mounting space. The top of the frame is provided with a translation base, and the top of the translation base is provided with a drive assembly.

[0006] The oil pump is installed in the oil pump limiting space. The drive component is driven by the translation base to mesh with the gear at the output end of the oil pump, and the drive component drives the oil pump gear to rotate.

[0007] Preferably, the translation platform includes a bottom outer frame, a slide rod assembly, a lead screw, and a sliding seat. The bottom outer frame is disposed on one side of the top of the base plate. The slide rod assembly is horizontally installed inside the bottom outer frame. The lead screw is disposed at the middle position of the slide rod assembly via a bearing. The sliding seat is sleeved on the outside of the slide rod assembly, and the sliding seat is threadedly connected to the lead screw. The lead screw drives the sliding seat through the threaded connection with the sliding seat.

[0008] Preferably, the drive sliding seat has a slot for inserting the oil pump mounting platform. The slot has a connecting hole. The connecting rod is inserted into the slot inside the drive sliding seat. The connecting rod has an internal bolt that mates with the connecting hole. The connecting rod is fixed inside the sliding seat by the internal bolt and the connecting hole.

[0009] Preferably, the mounting plate has several sets of threaded holes inside, which are arranged in a rectangular array within the mounting plate. The limiting rod has a two-section configuration, with the bottom end of the limiting rod having the same diameter as the threaded hole. The limiting rod is threadedly connected to the threaded hole, and the upper end of the limiting rod has a diameter larger than that of the threaded hole. A rubber pad is attached to the outside of the limiting rod.

[0010] Preferably, the translation base includes a slide rail, a carriage, and a drive component bracket. The slide rail is disposed on the top of the platform, the carriage is disposed outside the slide rail, the carriage can move laterally along the outside of the slide rail, and the drive component bracket is mounted on the top of the carriage.

[0011] Preferably, the drive assembly includes a spindle box, a drive motor, a main drive shaft, a feed box, and a drive gear. The spindle box is disposed on the top of the drive assembly bracket. The input end of the spindle box is provided with a drive motor, and the output end of the spindle box is provided with a main drive shaft. The middle part of the feed box is disposed in the middle of the main drive shaft, and the drive gear is disposed on the output end of the main drive shaft by bolts.

[0012] Preferably, the input end of the feed box has a hexagonal interface, which is used to connect to an external adjustment handwheel.

[0013] The beneficial effects of this utility model are as follows: By placing the oil pump in the oil pump mounting platform, which includes a connecting rod, a mounting plate, and a limiting rod, the mounting plate provides a sufficient number of connection points for the limiting rod, so that multiple sets of limiting rods can form fixed points for the oil pump. The oil pump is placed vertically on the surface of the mounting plate and kept fixed to ensure the stability of the oil pump in the testing state. The drive component meshes with the gear at the output end of the oil pump under the drive of the translation base, and the drive component drives the oil pump gear to rotate, performing an idle test on the oil pump, thus avoiding the problem of excessive wrist fatigue caused by manual testing.

[0014] This invention includes a translation platform and a translation base. During operation, the translation platform controls the position of the oil pump mounting platform, facilitating the positioning of oil pump gears of different specifications at the center of the translation platform. After positioning, subsequent tests of the same type of oil pump are conducted by directly placing it on the translation platform and pulling the translation base back and forth. This ensures that when the translation base moves to the foremost position, the drive component engages with the oil pump gear, guaranteeing operational safety. After each test, the translation base is pushed backward to remove the tested oil pump. Repeated positioning is unnecessary when testing the same type of oil pump, making the process more labor-saving and convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is an overall structural diagram of a test fixture for an oil pump.

[0017] Figure 2 This is a structural diagram of a translational base for an oil pump testing fixture.

[0018] Figure 3 This is a structural diagram of a translation platform and an oil pump mounting platform for an oil pump testing fixture.

[0019] Figure 4 This is a structural diagram of the drive assembly of an oil pump testing fixture;

[0020] Figure 5 This is a structural diagram of an oil pump mounting platform for an oil pump testing fixture;

[0021] Figure 6 This is a structural diagram of a limit rod for an oil pump testing fixture.

[0022] The numbers in the diagram represent: 1. Base plate; 2. Stand; 3. Translation platform; 31. Bottom outer frame; 32. Slide rod assembly; 33. Lead screw; 34. Sliding seat; 4. Oil pump mounting platform; 41. Connecting rod; 42. Mounting plate; 43. Limiting rod; 5. Translation base; 51. Slide rail; 52. Slide carriage; 53. Drive assembly bracket; 6. Drive assembly; 61. Spindle box; 62. Drive motor; 63. Main drive shaft; 64. Feed box; 65. Drive gear. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1-6 This embodiment is an oil pump testing fixture, including a base plate 1. A frame 2 and a translation platform 3 are respectively installed on both ends of the surface of the base plate 1. An oil pump mounting platform 4 for mounting and fixing the oil pump is provided on the top of the translation platform 3. The oil pump mounting platform 4 includes a connecting rod 41, a mounting plate 42 and a limiting rod 43. The connecting rod 41 is connected to and fixed inside the translation platform 3. The mounting plate 42 is welded to the top of the connecting rod 41. Several sets of limiting rods 43 are threaded to different positions inside the mounting plate 42. Several sets of fixed limiting rods 43 form an oil pump limiting mounting space. A translation base 5 is provided on the top of the frame 2. A drive assembly 6 is provided on the top of the translation base 5.

[0025] The oil pump is installed in the oil pump limiting space. The drive component 6 is driven by the translation base 5 and meshes with the gear at the output end of the oil pump. The drive component 6 drives the oil pump gear to rotate.

[0026] The translation platform 3 includes a bottom outer frame 31, a slide bar assembly 32, a lead screw 33, and a sliding seat 34;

[0027] The bottom outer frame 31 is set on one side of the top of the base plate 1. The slide rod assembly 32 is horizontally installed inside the bottom outer frame 31. The lead screw 33 is set at the middle position of the slide rod assembly 32 through the bearing. The sliding seat 34 is sleeved on the outside of the slide rod assembly 32 and is threadedly connected to the lead screw 33. The lead screw 33 drives the sliding seat 34 through the threaded connection with the sliding seat 34. During the initial positioning, the initial position is adjusted according to the shape of the oil pump. The sliding seat 34 can be adjusted to move back and forth by rotating the lead screw 33. During the movement, the relative position of the gear edge of the oil pump and the drive assembly 6 is adjusted. After the adjustment is completed, the oil pump mounting platform 4 on the top of the translation platform 3 can be kept in the set position.

[0028] The drive sliding seat 34 has a slot for inserting the oil pump mounting platform 4. A connecting hole is provided within the slot. The connecting rod 41 is inserted into the slot inside the drive sliding seat 34. An internal bolt that mates with the connecting hole is provided inside the connecting rod 41. The connecting rod 41 is fixed to the sliding seat 34 by the engagement of the internal bolt and the connecting hole. The mounting plate 42 has several sets of threaded holes arranged in a rectangular array within the mounting plate 42. The mounting plate 42 provides sufficient connection points for the limiting rod 43, thereby enabling multiple limiting... The positioning rod 43 forms a fixed point for the oil pump. The oil pump is placed vertically on the surface of the mounting plate 42 and kept fixed. The positioning rod 43 has a two-section structure. The bottom end of the positioning rod 43 is consistent with the diameter of the threaded hole. The positioning rod 43 is threadedly connected to the threaded hole. The upper end of the positioning rod 43 has a larger diameter than the diameter of the threaded hole. A rubber pad is attached to the outside of the positioning rod 43. The positioning rod 43 supports the oil pump through contact. The rubber pad can isolate the oil pump and the positioning rod 43 during contact to avoid contact scratches.

[0029] The translation base 5 includes a slide rail 51, a carriage 52, and a drive assembly bracket 53;

[0030] The slide rail 51 is located on the top of the platform 2, and the slide 52 is located outside the slide rail 51. The slide 52 can move laterally along the outside of the slide rail 51. The drive component bracket 53 is installed on the top of the slide 52. After the oil pump is in place, the slide 52 can be moved along the slide rail 51 by pulling it. The sliding slide 52 drives the drive component bracket 53 and the drive component 6 on the top of the drive component bracket 53 to move laterally synchronously. During the lateral movement, the drive component 6 contacts the gear of the oil pump so that the drive component 6 can drive the gear of the oil pump. The distance that the moving slide 52 moves forward along the slide rail 51 has a maximum forward movement value that is artificially limited. When the moving slide 52 reaches the maximum forward movement value along 51, the drive component 6 is exactly engaged with the gear of the oil pump.

[0031] The drive assembly 6 includes a spindle box 61, a drive motor 62, a main drive shaft 63, a feed box 64, and a drive gear 65;

[0032] The spindle box 61 is mounted on top of the drive assembly bracket 53. A drive motor 62 is mounted on the output end of the spindle box 61, and a main drive shaft 63 is mounted on the output end of the spindle box 61. The feed box 64 is located in the middle of the main drive shaft 63. The feed box 64 (which is existing technology and will not be described in detail here) changes the feed amount of the main drive shaft 63 through an internal speed change mechanism. The drive gear 65 is mounted on the output end of the main drive shaft 63 by bolts. During testing, the drive motor 62 drives the spindle box 61 to rotate, and the spindle box 61 drives the main drive shaft 63 to rotate. During the rotation of the main drive shaft 63, the drive gear 65 is driven to rotate, and the rotating drive gear 65 drives the oil pump gear to rotate, thereby performing an idle test.

[0033] The feed box 64 has a hexagonal interface at its input end, which is used to connect to an external adjustment handwheel. During the initial calibration, the feed box 64 is connected to the external adjustment handwheel through the hexagonal interface. The external adjustment handwheel can drive the feed box 64 to work. During operation, the feed box 64 drives the main drive shaft 63 to adjust its vertical position. The main drive shaft 63 drives the drive gear 65 to move to the position of the oil pump gear. After reaching the designated position, the external handwheel can be removed to fix the position.

[0034] In use, the oil pump is placed on the surface of the mounting plate 42. With the boundary of the oil pump as the limiting point, several sets of limiting rods 43 are inserted into the top of the mounting plate 42. The limiting rods 43 limit the position of the oil pump. Rotating the screw 33 causes the adjusting sliding seat 34 to move. The mounting plate 42 and the oil pump on the surface move synchronously until the gear of the oil pump is located at the center of the translation platform 3.

[0035] The feed box 64 is driven by an external adjustment handwheel. During operation, the feed box 64 drives the main drive shaft 63 to adjust its vertical position. The main drive shaft 63 drives the drive gear 65 to move to the horizontal height position of the oil pump gear.

[0036] The operator pulls the slide 52 to make it slide along the slide rail 51. The sliding slide 52 drives the drive component bracket 53 and the drive component 6 on the top of the drive component bracket 53 to move laterally in sync. When the slide 52 slides along the slide rail 51 to the maximum forward movement value, the drive gear 65 of the drive component 6 just meshes with the oil pump gear. During the lateral movement, the drive gear 65 of the drive component 6 contacts the oil pump gear, and the drive gear 65 of the drive component 6 drives the oil pump gear to rotate for detection.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An oil pump test fixture characterized by: The utility model provides a kind of oil pump installation platform, including bottom plate (1), the surface both ends of the bottom plate (1) are respectively equipped with rack (2) and translation platform (3), the top of the translation platform (3) is equipped with the oil pump installation platform (4) for placing and fixed oil pump, the oil pump installation platform (4) includes connecting plug rod (41), installation flat plate (42) and limiting plug rod (43), the connecting plug rod (41) is connected inside translation platform (3) and is fixed, the installation flat plate (42) is welded on the top of connecting plug rod (41), several groups of limiting plug rod (43) are threadedly connected at different positions on the top of installation flat plate (42), and several groups of position fixed limiting plug rod (43) form oil pump limiting installation space, the top of the rack (2) is equipped with translation base (5), and the top of the translation base (5) is equipped with drive assembly (6). The oil pump is placed in the oil pump limiting installation space, and the drive assembly (6) is engaged with the oil pump output gear under the driving of the translation base (5), and the drive assembly (6) drives the oil pump gear to rotate.

2. An oil pump test fixture as claimed in claim 1, wherein: The translation platform (3) includes a bottom outer frame (31), a slide rod group (32), a lead screw (33), and a sliding seat (34). The bottom outer frame (31) is arranged on one side of the top end of the bottom plate (1). The slide rod group (32) is transversely installed inside the bottom outer frame (31). The lead screw (33) is arranged at the middle position of the slide rod group (32) through a bearing. The sliding seat (34) is sleeved outside the slide rod group (32), and the sliding seat (34) is threadedly connected with the lead screw (33). The lead screw (33) drives the sliding seat (34) through the threaded connection with the sliding seat (34).

3. An oil pump test fixture as claimed in claim 2, wherein: A slot is formed in the drive sliding seat (34) for inserting the oil pump installation platform (4). A connecting hole is arranged in the slot. The connecting plug rod (41) is inserted into the slot in the drive sliding seat (34). An internal screw is arranged in the connecting plug rod (41) to cooperate with the connecting hole. The connecting plug rod (41) is fixed in the sliding seat (34) through the cooperation of the internal screw and the connecting hole.

4. An oil pump test fixture as claimed in claim 3, wherein: A plurality of threaded holes are formed in the installation flat plate (42). The plurality of threaded holes are arranged in a rectangular array in the installation flat plate (42). The limiting plug rod (43) has a two-section structure. The bottom end of the limiting plug rod (43) has the same diameter as the threaded hole. The limiting plug rod (43) is threadedly connected with the threaded hole. The upper end of the limiting plug rod (43) has a larger diameter than the threaded hole. A rubber pad is attached to the outside of the limiting plug rod (43).

5. An oil pump test fixture as claimed in claim 1 wherein: The translation base (5) includes a slide rail (51), a slide carriage (52), and a drive assembly support (53). The slide rail (51) is arranged on the top of the rack (2). The slide carriage (52) is arranged outside the slide rail (51). The slide carriage (52) can move laterally along the outside of the slide rail (51). The drive assembly support (53) is installed on the top of the slide carriage (52).

6. An oil pump test fixture as claimed in claim 1 wherein: The driving assembly (6) comprises a main shaft box (61), a driving motor (62), a main driving shaft (63), a feeding box (64) and a driving gear (65), the main shaft box (61) is arranged on the top of the driving assembly support (53), the input end of the main shaft box (61) is provided with the driving motor (62), the output end of the main shaft box (61) is provided with the main driving shaft (63), the middle part of the feeding box (64) is arranged on the middle part of the main driving shaft (63), and the driving gear (65) is arranged on the output end of the main driving shaft (63) through bolts.

7. An oil pump test fixture as claimed in claim 6, wherein: The input end of the feeding box (64) is provided with a hexagonal interface, and the hexagonal interface is used for being connected with an external adjusting hand wheel.

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