A general test installation device for hydraulic pump motors

Abstract

The utility model discloses a kind of general test installation devices of hydraulic pump motor, belong to hydraulic test technical field.The device includes test bench mounting surface, general flange seat and special flange, general flange seat is fixed on test bench mounting surface;Special flange is detachably installed on general flange seat through annular piece stopper, second stopper mounting hole and a plurality of circumferentially arranged first oblong holes are provided on it, which cooperate with the measured member;The utility model is combined with general flange seat and series special flange, cooperates adjustable wedge-shaped pressing plate, realizes the quick, general installation of hydraulic pump or motor of different installation stopper size, different bolt hole angle and diameter.The device effectively solves the problems of high tooling cost, high inventory and long test preparation period caused by "one pump one installation" in traditional testing, and has the remarkable advantages of strong universality, good economy and high efficiency.

Description

Technical Field

[0001] This invention relates to a universal testing and installation device for hydraulic pump motors, belonging to the technical field of testing hydraulic pump motor components. Background Technology

[0002] Currently, hydraulic pumps and motors from different suppliers vary in displacement and structural shape, resulting in differences in mounting flange dimensions and fixing hole positions. This necessitates the use of dedicated mounting fixtures for each model during testing, leading to a large number of test fixtures, high processing costs, and long test preparation cycles. Existing technologies typically design matching fixtures based on specific models, lacking versatility and adaptability, and failing to meet the efficient testing needs of pumps and motors with diverse specifications. Summary of the Invention

[0003] The purpose of this invention is to provide a universal testing and installation device for hydraulic pump motors. Through modular design, it enables rapid installation and fixation of pump motors of various specifications, significantly reducing tooling costs and testing cycles.

[0004] To achieve the above objectives / to solve the above technical problems, the present invention is implemented using the following technical solution.

[0005] On one hand, the present invention provides a universal testing and installation device for hydraulic pump motors, comprising: Test bench mounting surface, universal flange seat and special flange; The universal flange seat is connected to the test bench mounting surface, and the universal flange seat is provided with a first stop mounting hole for mounting a special flange and a mounting hole for fixing to the test bench surface; The special flange is detachably installed (nested) on the general flange seat through an annular stop, and has a second stop mounting hole that mates with the test piece. The special flange has a plurality of first elongated holes arranged along the circumference of the second stop mounting hole.

[0006] Furthermore, it also includes several adjustable wedge-shaped pressure plates, one end of which is wedge-shaped, and a second elongated hole is provided on the adjustable wedge-shaped pressure plate, which is connected to the first threaded hole on the special flange through the second elongated hole; Furthermore, the second stop mounting hole of the special flange is designed in various specifications according to the installation size of the test piece, and the diameter range of the second stop mounting hole is: Φ50mm ~ Φ300mm; By serializing and standardizing dedicated flanges, covering the range of common mounting flange sizes, it becomes possible to adapt multiple models of test pieces by replacing a low-cost, small-sized dedicated flange, rather than replacing the entire large tooling. This significantly reduces tooling inventory costs and tooling investment per test.

[0007] Furthermore, when the special flange is installed on the universal flange seat, the upper surfaces of the special flange and the universal flange seat are on the same plane; This ensures that a flat and continuous mounting reference surface is formed after the special flange and the general flange seat are combined; it eliminates the installation stress or centering deviation that may be caused by height difference or steps, ensures the stability and accuracy of the installation of the test piece, and improves the reliability of the test data.

[0008] Furthermore, a second threaded hole is provided around the first stop mounting hole, and a third threaded hole is provided on the outer side of the annular stop along the circumferential direction. The second threaded hole and the third threaded hole are used to connect the general flange seat and the special flange. The dual connection method of "stop positioning + circumferential threaded connection" not only enables the fast and accurate alignment of the special flange by using the stop, but also provides a firm and secure fastening through the circumferentially distributed threaded connection; thus ensuring the rigidity and reliability of the connection between the general flange seat and the special flange, and preventing loosening or displacement during testing.

[0009] Furthermore, the diameter of the second stop mounting hole is smaller than that of the first stop mounting hole; It is clarified that the part of the special flange used to install the test piece (the second stop mounting hole) is structurally nested within its own mounting part (the first stop mounting hole); the "nested" design allows the special flange to be made smaller, lighter, and more economical, while utilizing the strong support provided by the universal flange seat, thus achieving overall tooling lightweighting and cost optimization.

[0010] Furthermore, the mounting holes are circumferentially arranged on the outer edge of the universal flange seat; By placing the connection point between the universal flange seat and the test bench on the outer edge, maximum unobstructed space is provided inside. This facilitates the disassembly and assembly of special flanges and also makes it possible to install special flanges of different sizes or even large test pieces directly using the internal space of the universal flange seat, thus enhancing the rationality of the design and the space utilization rate.

[0011] Furthermore, the third threaded hole is circumferentially disposed on the outer edge of the special flange seat, and the annular stop is disposed between the third threaded hole and the first threaded hole.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This utility model reduces the number of special tooling and lowers manufacturing costs by combining a general flange seat with a special flange. This utility model, through the combined use of the second elongated hole and the wedge-shaped pressure plate, adapts to different installation diameters and angles, thus improving the versatility of the device; This utility model has a simple structure and is easy to assemble and disassemble, making it suitable for testing and installation needs of hydraulic pump motors of various specifications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of a general-purpose flange seat; Figure 3 This is a structural diagram of a special flange; Figure 4 This is a schematic diagram of the adjustable wedge pressure plate assembly. The components include: test bench mounting surface 1, universal flange seat 2, test piece 3, adjustable wedge pressure plate 4, special flange 5, first stop mounting hole 21, mounting hole 22, second threaded hole 23, annular stop 51, second stop mounting hole 52, first oblong hole 53, first threaded hole 54, third threaded hole 55, and second oblong hole 41. Detailed Implementation

[0014] It should be noted that: The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0015] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship. Example

[0016] like Figures 1 to 4 One embodiment shown provides a universal testing and mounting device for hydraulic pump motors, comprising: The test bench has a mounting surface 1, a general flange seat 2, and a special flange 5; The universal flange seat 2 is connected to the test bench mounting surface 1. The universal flange seat 2 is provided with a first stop mounting hole 21 for mounting a special flange 5 and a mounting hole 22 for fixing to the test bench surface. The special flange 5 is detachably mounted on the general flange seat 2 via an annular stop 51. It is provided with a second stop mounting hole 52 that mates with the test piece 3. The special flange 5 is provided with a plurality of first elongated holes 53 arranged along the circumference of the second stop mounting hole 52. The first elongated holes 53 are used to mate with the standard angle mounting hole B of the test piece 3 for effective fixation.

[0017] It also includes several adjustable wedge-shaped pressure plates 4, one end of which is designed in a wedge shape, and a second elongated hole 41 is opened on the adjustable wedge-shaped pressure plate 4, which is connected to the first threaded hole 54 on the special flange 5 through the second elongated hole 41. By setting an adjustable wedge-shaped pressure plate, and utilizing its wedge-shaped end and second elongated hole 41, the test piece with a non-standard angle mounting hole A is effectively clamped and fixed; this greatly expands the applicability of the device, enabling it to cope with pumps and motors with various special installation requirements, and avoids the cost of designing and manufacturing the entire tooling separately for a very small number of non-standard products.

[0018] The second stop mounting hole 52 of the special flange 5 is designed in various specifications according to the installation dimensions of the test piece 3, and the diameter range of the second stop mounting hole 52 is: Φ50mm ~ Φ300mm.

[0019] When the special flange 5 is installed on the universal flange seat 2, the upper surfaces of the special flange 5 and the universal flange seat 2 are on the same plane.

[0020] A second threaded hole 23 is provided around the first stop mounting hole 21, and a third threaded hole 55 is provided on the outer side of the annular stop 51 along the circumferential direction. The second threaded hole 23 and the third threaded hole 55 are used to connect the general flange seat 2 and the special flange 5.

[0021] The diameter of the second stop mounting hole 52 is smaller than that of the first stop mounting hole 21.

[0022] The mounting holes 22 are arranged circumferentially on the outer edge of the universal flange seat 2.

[0023] The third threaded hole 55 is arranged circumferentially on the outer edge of the special flange seat 5, and the annular stop 51 is arranged between the third threaded hole 55 and the first threaded hole 54, clearly dividing the fasteners (third threaded hole 55) used to connect the general flange seat and the fasteners (first threaded hole 54) used to press the test piece or install the pressure plate in the radial direction; avoiding interference between functional areas, making the structure more reasonably stressed, and also facilitating the identification and operation of operators during installation, thus improving the ease of use of the device.

[0024] The operating procedure for this device is as follows: Based on the stop size of the mounting flange of the hydraulic pump or motor to be tested, select a special flange 5 from a variety of special flange 5 whose second stop mounting hole 52 size matches the part to be tested; and prepare other components of the general test mounting device, including test bench mounting surface 1, general flange seat 2 and several adjustable wedge pressure plates 4.

[0025] The selected special flange 5 is aligned with its annular stop 51 and inserted into the first stop mounting hole 21 of the universal flange seat 2 to achieve initial positioning; fasteners are used to pass through the second threaded hole 23 on the universal flange seat 2 and the third threaded hole 55 on the special flange 5 to fasten the special flange 5 to the universal flange seat 2, ensuring that the upper surfaces of both are on the same plane.

[0026] Align the mounting flange of the hydraulic pump or motor to be tested with the second stop mounting hole 52 of the special flange 5; fix the universal flange seat 2, after fixing the hydraulic pump or motor to be tested, on the test bench mounting surface 1 through the mounting hole 22 on its outer edge to ensure a stable installation.

[0027] If the mounting hole angle of the hydraulic pump or motor to be tested corresponds to the position of the first elongated hole 53 on the special flange 5, then the bolt is directly passed through the first elongated hole 53 and screwed into the threaded hole (i.e., standard angle mounting hole B) of the hydraulic pump or motor to be tested. By adjusting the radial position of the bolt in the first elongated hole 53, different mounting diameters can be accommodated to complete the fixing.

[0028] If the threaded hole angle of the hydraulic pump or motor under test does not match the position of the first elongated hole 53, press the wedge end of the adjustable wedge plate 4 against the non-standard angle mounting hole A of the flange of the part under test 3; adjust the angle and position of the adjustable wedge plate 4 so that the second elongated hole 41 on it is aligned with the first threaded hole 54 on the special flange 5; use a bolt to pass through the second elongated hole 41 and screw it into the first threaded hole 54, tighten the bolt, and the part under test 3 will be firmly pressed onto the special flange 5 by the wedge action of the pressure plate.

[0029] After confirming that the test component 3 has been securely installed, connect the testing device; start the testing system and perform performance testing on the hydraulic pump or motor according to the predetermined testing procedure.

[0030] If you need to test parts of different specifications, you can repeat the above steps and quickly adapt them by simply replacing the special flange 5.

[0031] After the test is completed, disconnect all test device connections; loosen and remove the bolts or adjustable wedge plates 4 that fix the test piece 3 in reverse order; remove the test piece 3 from the device after the test is completed.

[0032] This utility model fundamentally changes the traditional "one pump, one assembly" model through a modular design of "universal flange seat + replaceable special flange". The universal flange seat is a permanent basic component that can be reused. Only low-cost, small-sized special flanges need to be made for different test pieces, which greatly reduces the total amount of tooling, saves materials and processing costs, and has significant economic benefits.

[0033] This invention enables rapid switching of testing fixtures. When testing different models of pumps and motors, operators only need to change the dedicated flange and fix it using elongated holes or wedge-shaped pressure plates. The entire process is simple and quick. This effectively solves the problem of long testing cycles caused by waiting for dedicated fixtures to be processed, and is particularly suitable for rapid testing needs of multiple varieties and small batches.

[0034] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A universal testing and installation device for hydraulic pump motors, characterized in that, include: The test bench has a mounting surface (1), a general flange seat (2), and a special flange (5). The universal flange seat (2) is connected to the test bench mounting surface (1). The universal flange seat (2) is provided with a first stop mounting hole (21) for installing a special flange (5) and a mounting hole (22) for fixing the universal flange seat (2) to the test bench mounting surface (1). The special flange (5) is detachably mounted on the general flange seat (2) through the annular stop (51), and is provided with a second stop mounting hole (52) that is connected to the test piece (3). The special flange (5) is provided with a plurality of first elongated holes (53) arranged along the circumferential direction of the second stop mounting hole (52).

2. The universal testing and installation device for hydraulic pump motors according to claim 1, characterized in that, It also includes several adjustable wedge plates (4), one end of which is wedge-shaped, and a second elongated hole (41) is opened on the adjustable wedge plate (4), which is connected to the first threaded hole (54) on the special flange (5) through the second elongated hole (41).

3. The universal testing and installation device for hydraulic pump motors according to claim 1, characterized in that, The second stop mounting hole (52) of the special flange (5) is designed in several specifications according to the installation size of the test piece (3). The diameter range of the second stop mounting hole (52) is: Φ50mm ~ Φ300mm.

4. The universal testing and installation device for hydraulic pump motors according to claim 1, characterized in that, When the special flange (5) is installed on the universal flange seat (2), the upper surfaces of the special flange (5) and the universal flange seat (2) are on the same plane.

5. The universal testing and installation device for hydraulic pump motors according to claim 4, characterized in that, A second threaded hole (23) is provided around the first stop mounting hole (21), and a third threaded hole (55) is provided on the outer side of the annular stop (51) along the circumferential direction. The second threaded hole (23) and the third threaded hole (55) are used to connect the general flange seat (2) and the special flange (5).

6. The universal testing and installation device for hydraulic pump motors according to claim 1, characterized in that, The diameter of the second stop mounting hole (52) is smaller than that of the first stop mounting hole (21).

7. The universal testing and installation device for hydraulic pump motors according to claim 1, characterized in that, The mounting hole (22) is provided circumferentially on the outer edge of the universal flange seat (2).

8. The universal testing and installation device for hydraulic pump motors according to claim 5, characterized in that, The third threaded hole (55) is arranged circumferentially on the outer edge of the special flange (5), and the annular stop (51) is arranged between the third threaded hole (55) and the first threaded hole (54).

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