Automatic press-fitting equipment for gear shaft of oil pump

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By setting distance limiting components and adjustment components in the automatic pressing equipment of the oil pump gear shaft, the problem of inaccurate pressure application in existing equipment is solved, and the quality of pressing and application scope of equipment is improved.

CN222873781UActive Publication Date: 2025-05-16CHANGZHOU QUANRUI ELECTROMECHANICAL TECH CO LTD

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Patent Information

Application Number: CN202421904391.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-07
Publication Date: 2025-05-16
Estimated Expiration: 2034-08-07

AI Technical Summary

Technical Problem

During the use of existing gear shaft automatic pressing equipment, it is difficult to accurately grasp the distance of the gear axial movement of the oil pump gear axle, resulting in excessive or too small pressure, reducing the quality of pressing, and inconvenient to accurately pressurize gear shafts of different sizes, limiting the scope of application and practicality of the equipment.

Method used

An automatic pressing equipment for the gear shaft of the oil pump is designed. By setting a distance limiting component and an adjustment component, the distance limiting component defines the downward movement distance of the movable plate through the coordination of the movable plate, connecting rod and touch block. The adjustment component adjusts the moving distance of the movable plate through the coordination of the screw and nut to ensure the accurate pressing of the gear shaft.

Benefits of technology

It effectively prevents excessive or too small pressure on the gear shaft of the oil pump, improves the pressure assembly quality, and can adapt to gear shafts of different sizes, expands the application scope and practicality of the equipment.

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Abstract

The utility model discloses automatic press-fitting equipment for an oil pump gear shaft, and relates to the technical field of oil pumps. The distance limiting device comprises a base plate, a distance limiting assembly is arranged on the base plate, a movable plate in the distance limiting assembly is arranged on the base plate, a connecting rod is hinged to the lower surface of the movable plate through a hinge, a touch block is hinged to the lower end of the connecting rod through a hinge, a guide block is fixedly connected to the lower surface of the touch block, and the guide block is in sliding connection with a guide groove formed in the base plate. An adjusting assembly arranged on the base plate comprises a connecting base and a reverse side plate. The distance limiting assembly is arranged to limit the downward moving distance of the movable plate, so that the movable plate accurately applies pressure to the oil pump gear shaft, the stroke of the oil pump gear shaft during press fitting is prevented from being too large or too small, the press fitting quality of the oil pump gear shaft is improved, the adjusting assembly is arranged, the downward moving distance of the movable plate is conveniently adjusted, and the press fitting efficiency is improved. And oil pump gear shafts of different sizes can be conveniently and accurately pressed, the application range is widened, and practicability is improved.

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Description

Technical Field

[0001] The utility model belongs to the technical field of oil pumps, in particular to automatic press-fitting equipment for an oil pump gear shaft. Background Art

[0002] The oil pump is a key component in the lubrication system. The main function of the oil pump is to force the oil to the moving surfaces of the engine parts after it is raised to a certain pressure. Pressing the oil pump gear shaft onto the oil pump housing is one of the steps in manufacturing the oil pump. In the above operation process, the gear shaft press-fitting equipment is required.

[0003] The gear shaft pressing equipment is composed of a base, a clamping assembly, a pressing mechanism and other components. The oil pump housing is locked on the base through the clamping assembly. Then, the pressing mechanism is controlled to press the gear shaft to press the gear shaft onto the oil pump housing.

[0004] However, it still has the following disadvantages in actual use:

[0005] The existing automatic gear shaft press-fitting equipment, during use, presses the oil pump gear shaft downward to complete the press-fitting of the oil pump gear shaft, but it is not convenient to grasp the downward movement distance of the oil pump gear shaft. If the oil pump is pressed too much or too little, the oil pump gear shaft cannot be pressed into place, which reduces the press-fitting quality of the oil pump gear shaft.

[0006] 2. The existing automatic gear shaft press-fitting equipment is not convenient for accurately adjusting the stroke of the oil pump gear shaft during use, and is not convenient for accurately applying pressure to oil pump gear shafts of different sizes, which reduces the scope of application of the existing automatic gear shaft press-fitting equipment and reduces its practicality.

[0007] To this end, we provide an automatic press-fitting device for an oil pump gear shaft to solve the above-mentioned problems. Utility Model Content

[0008] The purpose of the utility model is to provide an automatic press-fitting device for an oil pump gear shaft. By setting a distance limit component and an adjustment component, the utility model solves the problems of poor press-fitting quality of the oil pump gear shaft by the existing automatic press-fitting device for the gear shaft, and the inconvenience of accurately applying pressure to oil pump gear shafts of different sizes.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model discloses an automatic press-fitting device for an oil pump gear shaft, comprising a base plate, a limited distance component is arranged on the base plate, a movable plate in the limited distance component is arranged on the base plate, a lower surface of the movable plate is hinged with a connecting rod through a hinge, a lower end of the connecting rod is hinged with a touch block through a hinge, a guide block is fixedly connected to the lower surface of the touch block, the guide block is slidably connected with a guide groove provided on the base plate, a switch provided on the side of the touch block is arranged on the base plate; an adjusting component arranged on the base plate comprises a connecting seat and a reverse side plate, the connecting seat is connected with the switch, a groove rail is arranged on the side wall of the reverse side plate connected to the base plate, a screw rod fixed on one side wall of the connecting seat is slidably connected with the groove rail, a nut is threadedly connected on the peripheral side wall of the screw rod, a scale line is arranged on the reverse side plate, and a pointing needle connected to the connecting seat corresponds to the scale line.

[0011] The utility model is further configured that the guide block is in a Chinese-character shape, and the guide groove is in a Chinese-character shape.

[0012] The utility model is further configured that the front side plate connected to the base plate corresponds to the back side plate, the side walls of the front side plate are provided with guide rails, and the guide rails are slidably connected to the moving block fixed to the other side wall of the connecting seat.

[0013] The utility model is further configured that a pressure component is arranged on the base plate, a placement frame in the pressure component is connected to the base plate, and the lower end of the electric push rod connected to the inner top of the placement frame is connected to the movable plate.

[0014] The utility model is further configured that a sliding block is fixedly connected to the side wall of the movable plate, and the sliding block is slidably connected to a sliding groove provided on the inner side wall of the placement frame.

[0015] The utility model is further configured that the placement frame is U-shaped, and the through groove opened on the side wall of the placement frame is U-shaped.

[0016] The utility model is further configured that the clamping block arranged on the base plate is located below the movable plate, the end of the hydraulic rod connected to the side wall of the clamping block is connected to a hydraulic cylinder, and the cylinder seat connected to the end of the hydraulic cylinder is connected to the base plate.

[0017] The utility model is further configured that a movable block is fixedly connected to the lower surface of the movable plate, and the movable block is slidably connected to a slide rail provided on the base plate.

[0018] The utility model has the following beneficial effects:

[0019] The utility model sets a distance limiting component, when the movable plate moves downward, the two ends of the connecting rod move in an arc with the hinge as a fixed point, and the touch block approaches the switch. When the touch block touches the switch, the electric push rod stops working, thereby limiting the distance the movable plate moves downward and limiting the stroke of the oil pump gear shaft during press-fitting, effectively preventing excessive or insufficient pressure on the oil pump gear shaft, and helping to improve the press-fitting quality of the oil pump gear shaft.

[0020] The utility model provides an adjustment component, loosens the nut clockwise, applies external force to the connecting seat, and the connecting seat drives the switch to move on the base, adjusts the distance between the touch block and the switch, adjusts the downward movement distance of the movable plate, and accurately applies pressure to oil pump gear shafts of different sizes, thereby improving the use range of the oil pump gear shaft automatic pressing equipment and improving practicality.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 It is a three-dimensional schematic diagram of an automatic press-fitting device for an oil pump gear shaft;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 3 is a schematic diagram of the connection between the base plate and the connecting rod;

[0026] Figure 4 It is a schematic diagram of the connection between the base plate and the clamping block;

[0027] Figure 5 It is a connection diagram of the touch block, switch and adjustment component.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1 - Substrate, 101 - Hydraulic cylinder, 101a - Hydraulic rod, 101b - Cylinder base, 102 - Clamping block, 102a - Movable block, 103 - Guide groove, 104 - Slide rail, 2 - Pressing assembly, 201 - Mounting rack, 201a - Through groove, 201b - Slide groove, 202 - Electric push rod, 3 - Distance limiting assembly, 301 - Movable plate, 301a - Slide block, 302 - Connecting rod, 302a - Hinge, 303 - Touching block, 303a - Guide block, 304 - Switch, 4 - Adjusting assembly, 401 - Front side plate, 401a - Guide rail, 402 - Connecting seat, 402a - Screw rod, 402b - Nut, 402c - Pointer, 402d - Moving block, 403 - Rear side plate, 403a - Scale line, 403b - Groove rail. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] Example 1, please refer to Figure 1 and Figure 3 The present invention is an automatic press-fitting device for an oil pump gear shaft, including a substrate 1. A distance limiting assembly 3 is arranged on the substrate 1. The distance limiting assembly 3 includes a movable plate 301, a slide block 301a, a connecting rod 302, a hinge 302a, a touching block 303, a guide block 303a and a switch 304. By moving the movable plate 301 downward, the touching block 303 presses the switch 304, so that the movable plate 301 stops moving downward, limiting the distance of the downward movement of the movable plate 301 and the stroke of the downward extrusion of the oil pump gear shaft by the movable plate 301, preventing excessive or insufficient pressure on the oil pump gear shaft, and being beneficial to improving the press-fitting quality of the oil pump gear shaft;

[0032] Specifically, the movable plate 301 is arranged on the substrate 1. The upper end of the connecting rod 302 is hinged to the lower surface of the movable plate 301 through a hinge 302a. The touching block 303 is hinged to the lower end of the connecting rod 302 through a hinge 302a. The guide block 303a is fixedly connected to the lower surface of the touching block 303. A guide groove 103 is opened on the substrate 1. The guide block 303a is slidably connected to the guide groove 103. The switch 304 is arranged on the substrate 1, and the position of the switch 304 corresponds to the position of the touching block 303;

[0033] Further, the guide groove 103 is in a middle character shape, and the guide block 303a is in a middle character shape;

[0034] The operation process of this embodiment is as follows: when downward pressure is applied to the movable plate 301, the movable plate 301 moves downward, and both ends of the connecting rod 302 move in an arc with the hinge 302a as a fixed point. At the same time, the guide block 303a slides along the guide groove 103, and the touch block 303 approaches the switch 304. When the touch block 303 touches the switch 304, the movable plate 301 stops moving downward, that is, the downward moving distance of the movable plate 301 is limited; conversely, when the movable plate 301 moves upward, the touch block 303 moves away from the switch 304.

[0035] Example 2, please refer to Figure 1 and Figure 5 On the basis of the specific embodiment 1, an adjustment component 4 is provided, which includes a positive side plate 401, a connecting seat 402, a screw 402a, a nut 402b, a pointer 402c, a moving block 402d, a reverse side plate 403 and a scale line 403a. The nut 402b is loosened clockwise, and an external force is applied to the connecting seat 402 to achieve the spacing between the switch 304 and the touch block 303, adjust the stroke of the movable plate 301, and adjust the stroke of the oil pump gear shaft during press-fitting. It is suitable for press-fitting of oil pump gear shafts of different sizes, and improves practicality.

[0036] Specifically, the front side plate 401 and the back side plate 403 are both connected to the base plate 1, and the front side plate 401 and the back side plate 403 are opposite to each other, the connecting seat 402 is connected to the switch 304, and a screw 402a is fixedly connected to one side wall of the connecting seat 402, a groove rail 403b is provided on the side wall of the back side plate 403, the screw 402a penetrates the groove rail 403b, and a nut 402b is threadedly connected to the peripheral side wall of the screw 402a, a scale line 403a is provided on the back side plate 403, a pointer 402c is connected to the connecting seat 402, a moving block 402d is fixedly connected to the other side wall of the connecting seat 402, a guide rail 401a is provided on the side wall of the front side plate 401, and the moving block 402d is slidably connected to the guide rail 401a;

[0037] Furthermore, the outer diameter of the nut 402b is larger than the inner diameter of the groove rail 403b, and the guide rail 401a is U-shaped;

[0038] The operation process of this embodiment is as follows: when the staff loosens the nut 402b clockwise, an external force is applied to the connecting seat 402, the screw 402a moves along the groove rail 403b, and at the same time the moving block 402d moves along the guide rail 401a, the connecting seat 402 moves on the substrate 1, the distance between the switch 304 and the touch block 303 is adjusted, and the moving distance of the movable plate 301 is adjusted; conversely, when the nut 402b is tightened counterclockwise, the position of the connecting seat 402 is locked.

[0039] Example 3, please refer to Figure 1 , Figure 2 and Figure 4 On the basis of the first and second embodiments, a pressure assembly 2 is provided, the pressure assembly 2 comprises a mounting frame 201 and an electric push rod 202, the electric push rod 202 is manipulated to make the movable plate 301 press the oil pump gear shaft downward, and the oil pump gear shaft is pressed onto the oil pump housing;

[0040] Specifically, the mounting frame 201 is connected to the base plate 1, the electric push rod 202 is connected to the inner top of the mounting frame 201, and the lower end of the electric push rod 202 is connected to the movable plate 301, a through groove 201a is provided on the outer wall of the mounting frame 201, a slide groove 201b is provided on the inner wall of the mounting frame 201, a slider 301a is fixedly connected to the side wall of the movable plate 301, and the slider 301a is slidably connected to the slide groove 201b, a clamping block 102 is provided on the base plate 1, the clamping block 102 is located below the movable plate 301, and a hydraulic rod 101a is connected to the side wall of the clamping block 102, the end of the hydraulic rod 101a is connected to the hydraulic cylinder 101, and the end of the hydraulic cylinder 101 is connected to the cylinder seat 101b, and the cylinder seat 101b is connected to the base plate 1, and a movable block 102a is fixedly connected to the lower surface of the clamping block 102, and the movable block 102a is slidably connected to the slide rail 104;

[0041] Furthermore, the four sliders 301a are arranged in a rectangular array, the four slide slots 201b are opened in a rectangular array, the two through slots 201a are opened symmetrically, the two clamping blocks 102 are arranged symmetrically, and the two hydraulic cylinders 101 are arranged symmetrically;

[0042] The operation process of this embodiment is as follows: the staff places the oil pump housing on the base plate 1, starts the hydraulic cylinder 101, the hydraulic rod 101a extends, the two clamps 102 move toward each other until the clamps 102 clamp the oil pump housing, and the gear shaft is placed on the oil pump housing placement position, and the electric push rod 202 is started to drive the movable plate 301 to move downward, and the movable plate 301 that moves downward presses the gear shaft onto the oil pump housing.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic press-fitting device for an oil pump gear shaft, comprising a base plate (1), characterized in that: A distance-limiting component (3) is provided on the substrate (1). The movable plate (301) in the distance-limiting component (3) is arranged on the substrate (1). A connecting rod (302) is hinged to the lower surface of the movable plate (301) through a hinge (302a). The lower end of the connecting rod (302) is hinged to a touch block (303) through a hinge (302a). A guide block (303a) is fixedly connected to the lower surface of the touch block (303). The guide block (303a) is slidably connected to a guide groove (103) opened on the substrate (1). A switch (304) arranged on the side of the touch block (303) is arranged on the substrate (1). An adjusting component (4) provided on the substrate (1) includes a connecting seat (402) and a counter side plate (403). The connecting seat (402) is connected to the switch (304). A groove rail (403b) is opened on the side wall of the counter side plate (403) connected to the substrate (1). A screw rod (402a) fixedly connected to one side wall of the connecting seat (402) is slidably connected to the groove rail (403b). A nut (402b) is threadedly connected to the peripheral side wall of the screw rod (402a). A scale line (403a) is opened on the counter side plate (403). A pointing needle (402c) connected to the connecting seat (402) corresponds to the scale line (403a).

2. The automatic press-fitting equipment for the oil pump gear shaft according to claim 1 is characterized in that: The guide block (303a) is in a Chinese character 'zhong' shape, and the guide groove (103) is in a Chinese character 'zhong' shape.

3. The automatic press-fitting equipment for the oil pump gear shaft according to claim 1 is characterized in that: A front side plate (401) connected to the substrate (1) corresponds to the counter side plate (403). A guide rail (401a) is opened on the side wall of the front side plate (401). The guide rail (401a) is slidably connected to a moving block (402d) fixedly connected to the other side wall of the connecting seat (402).

4. The automatic press-fitting equipment for the oil pump gear shaft according to claim 2 is characterized in that: A pressing component (2) is provided on the substrate (1). A mounting frame (201) in the pressing component (2) is connected to the substrate (1). The lower end of an electric push rod (202) connected to the inner top of the mounting frame (201) is connected to the movable plate (301).

5. The automatic press-fitting equipment for the oil pump gear shaft according to claim 1, characterized in that: A slider (301a) is fixedly connected to the side wall of the movable plate (301). The slider (301a) is slidably connected to a chute (201b) opened on the inner side wall of the mounting frame (201).

6. The automatic press-fitting equipment for the oil pump gear shaft according to claim 5, characterized in that: The mounting frame (201) is in a U shape, and a through groove (201a) opened on the side wall of the mounting frame (201) is in a U shape.

7. The automatic press-fitting equipment for the oil pump gear shaft according to claim 1, characterized in that: A clamping block (102) provided on the substrate (1) is located below the movable plate (301). The end of a hydraulic rod (101a) connected to the side wall of the clamping block (102) is connected to a hydraulic cylinder (101). The cylinder seat (101b) connected to the end of the hydraulic cylinder (101) is connected to the substrate (1).

8. The automatic press-fitting equipment for the gear shaft of an oil pump according to claim 7, characterized in that: A movable block (102a) is fixedly connected to the lower surface of the movable plate (301). The movable block (102a) is slidably connected to a slide rail (104) opened on the substrate (1).