Gear pump testing tool

Abstract

The utility model discloses a gear pump testing tool in the technical field of testing tools, which comprises a rotating platform and two mounting cabins, the mounting cabins are positioned above the rotating platform, the outer side of the rotating platform is fixedly connected with a first motor, and the outer side of the rotating platform is fixedly connected with a second motor. One end of a power output shaft of the first motor penetrates through the rotating platform and extends to an inner cavity of the rotating platform, one end of the power output shaft of the first motor is fixedly connected with a first two-way screw rod, and the outer side of the first two-way screw rod is in threaded connection with two first connecting plates; the top of the first connecting plate is fixedly connected with an electric push rod, the top end of the electric push rod is fixedly connected with a mounting plate, and the top of the first connecting plate is fixedly connected with an electric push rod. Gear pumps of different specifications can be clamped and fixed, and the adjusting structure is simple and high in stability.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, specifically a gear pump testing tooling. Background Technology

[0002] A gear pump is a rotary pump that transports or pressurizes liquids by relying on the change and movement of the working volume formed between the pump cylinder and meshing gears. It consists of two gears, a pump body, and front and rear covers, forming two enclosed spaces. When the gears rotate, the volume of the space on the disengaged side increases, creating a vacuum that draws in liquid. Conversely, the volume of the space on the meshing side decreases, forcing the liquid into the pipeline. The suction and discharge chambers are separated by the meshing line of the two gears. The pressure at the discharge port of a gear pump depends entirely on the resistance at the pump outlet.

[0003] The prior art patent application number 202123434859.8, entitled "A Gear Pump Function Testing Fixture," includes a fixture table. A rotating plate is rotatably connected to the top of the fixture table. A rotary motor is fixedly mounted on the bottom of the fixture table. The shaft end of the rotary motor is connected to the bottom of the rotating plate. An electric push rod is movably mounted on the top of the rotating plate. A moving adjustment mechanism is provided on the side of the rotating plate opposite to the electric push rod. The moving adjustment mechanism is fixedly connected to the rotating plate. A rotating mechanism is fixedly mounted on the shaft end of the electric push rod. Several support seats are fixedly mounted on the bottom of the fixture table. Therefore, this... The utility model has the advantage of being able to perform clamping tests on gear pumps of different sizes. However, its clamping mechanism lacks an effective buffer device, failing to absorb and mitigate the instantaneous impact force generated during clamping. This results in excessive rigid clamping force being directly transmitted to the gear pump housing and internal transmission components, potentially causing localized stress concentration in the gear pump housing. Long-term use may lead to housing deformation or seal failure. Furthermore, the adjustment structure of its clamping mechanism requires the linkage of multiple gears for adjustment, which is complex and also affects the stability of the clamping mechanism. Therefore, we propose a gear pump testing fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a gear pump testing fixture to solve the problems mentioned in the background art, such as the lack of an effective buffer device in the clamping mechanism, which cannot absorb and alleviate the instantaneous impact force generated during the clamping process, and the need for the adjustment structure of the clamping mechanism to be adjusted by multiple gears in linkage, which is more complex and also affects the stability of the clamping mechanism.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gear pump testing fixture, comprising a rotating platform and two mounting chambers, wherein the mounting chambers are located above the rotating platform, a first motor is fixedly connected to the outer side of the rotating platform, one end of the power output shaft of the first motor passes through the rotating platform and extends into the inner cavity of the rotating platform, and a first bidirectional screw is fixedly connected to one end of the power output shaft of the first motor, two first connecting plates are screwed to the outer side of the first bidirectional screw, an electric push rod is fixedly connected to the top of the first connecting plate, a mounting plate is fixedly connected to the top of the electric push rod, a fixing plate is fixedly connected to one side of the mounting plate, and a rubber seat is fixedly connected to one side of the fixing plate.

[0006] As a further description of the above technical solution:

[0007] A friction rod is fixedly connected to one side of the rubber seat, and the friction rods are evenly distributed in sequence. A rubber plate is slidably connected to the outer side of the friction rod, and a friction sleeve is fixedly connected to one side of the rubber plate, and the friction sleeves are evenly distributed in sequence.

[0008] As a further description of the above technical solution:

[0009] Both the fixing plate and one side of the rubber plate are fixedly connected with repulsive magnets, and one side of the rubber plate is fixedly connected with a connecting rod, which is fixedly connected to the installation chamber.

[0010] As a further description of the above technical solution:

[0011] A second motor is fixedly connected to one side of the installation chamber, and one end of the power output shaft of the second motor passes through the installation chamber and extends into the inner cavity of the installation chamber.

[0012] As a further description of the above technical solution:

[0013] One end of the power output shaft of the second motor is fixedly connected to a second bidirectional screw, and two second connecting plates are screwed to the outer side of the second bidirectional screw.

[0014] As a further description of the above technical solution:

[0015] A clamping protrusion is fixedly connected to one side of the second connecting plate on one side, and a clamping recess is fixedly connected to one side of the second connecting plate on the other side.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this gear pump testing fixture, after the clamping mechanism clamps and fixes the gear pump, the clamping force is transmitted to the connecting rod, causing the rubber plate connected to the connecting rod to move on the friction rod. This causes the friction rod to rub against the friction sleeve on the rubber plate, generating damping and buffering the clamping force. At the same time, the movement of the rubber plate causes the repulsive magnets mounted on the rubber plate to approach the repulsive magnets mounted on the fixed plate, generating a repulsive force, which further buffers the clamping force. When the rubber plate moves to its maximum stroke, the rubber plate contacts and presses against the rubber seat, allowing the clamping mechanism to firmly clamp the gear pump, thereby buffering the clamping force applied to the gear pump by the clamping mechanism.

[0018] 2. This gear pump testing fixture, according to the specifications of the gear pump, starts a second motor to drive a second bidirectional screw to rotate, causing two second connecting plates mounted on the second bidirectional screw to move. This causes the clamping protrusions and clamping concave blocks connected to the two second connecting plates to approach each other to form a V-shaped positioning groove, thereby adjusting the clamping range of the clamping mechanism. This allows for the clamping and fixing of gear pumps of different specifications, and the adjustment structure is simple and highly stable. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural diagram of a gear pump testing fixture proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of a gear pump testing fixture proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping force buffer mechanism of a gear pump testing fixture proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the clamping mechanism of a gear pump testing fixture proposed in this utility model.

[0023] In the diagram: 100, rotating platform; 110, first motor; 111, first bidirectional screw; 120, first connecting plate; 130, electric push rod; 131, mounting plate; 140, fixing plate; 150, rubber seat; 151, friction rod; 160, rubber plate; 161, friction sleeve; 170, repulsive magnet; 180, connecting rod; 200, mounting chamber; 210, second motor; 211, second bidirectional screw; 220, second connecting plate; 230, clamping protrusion; 240, clamping concave block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] This utility model provides a gear pump testing fixture that can buffer the clamping force applied to the gear pump by the clamping mechanism. It can clamp and fix gear pumps of different specifications, and its adjustment structure is simple and highly stable. Please refer to [link / reference]. Figure 1-4 It includes a rotating platform 100 and two installation chambers 200;

[0028] Please refer to it again. Figure 1-3A first motor 110 is fixedly connected to the outer side of the rotating platform 100. One end of the power output shaft of the first motor 110 passes through the rotating platform 100 and extends into the inner cavity of the rotating platform 100. A first bidirectional screw 111 is fixedly connected to one end of the power output shaft of the first motor 110. Two first connecting plates 120 are screwed to the outer side of the first bidirectional screw 111. An electric push rod 130 is fixedly connected to the top of the first connecting plate 120. A mounting plate 131 is fixedly connected to the top of the electric push rod 130. A fixing plate 140 is fixedly connected to one side of the mounting plate 131. A rubber seat 150 is fixedly connected to one side of the fixing plate 140. A friction rod 151 is fixedly connected to one side of the rubber seat 150. The friction rods 151 are evenly distributed in sequence. A rubber plate 160 is slidably connected to the outer side of the friction rod 151. A friction sleeve 161 is fixedly connected to one side of the rubber plate 160. The friction sleeves 161 are evenly distributed in sequence. The gear pump is evenly distributed, and a repulsive magnet 170 is fixedly connected to one side of both the fixed plate 140 and the rubber plate 160. A connecting rod 180 is fixedly connected to one side of the rubber plate 160 and is fixedly connected to the mounting chamber 200. When the clamping mechanism clamps and fixes the gear pump, the clamping force is transmitted to the connecting rod 180, causing the rubber plate 160 connected to the connecting rod 180 to move on the friction rod 151. This causes the friction rod 151 to rub against the friction sleeve 161 on the rubber plate 160, generating damping and buffering the clamping force. At the same time, the movement of the rubber plate 160 causes the repulsive magnet 170 installed on the rubber plate 160 to approach the repulsive magnet 170 installed on the fixed plate 140, generating a repulsive force, which further buffers the clamping force. When the rubber plate 160 moves to its maximum stroke, the rubber plate 160 contacts and presses against the rubber seat 150, allowing the clamping mechanism to firmly clamp the gear pump.

[0029] In summary, the clamping force applied to the gear pump by the clamping mechanism can be buffered.

[0030] Please refer to it again. Figure 1-4 The installation chamber 200 is located above the rotating platform 100. A second motor 210 is fixedly connected to one side of the installation chamber 200. One end of the power output shaft of the second motor 210 passes through the installation chamber 200 and extends into the inner cavity of the installation chamber 200. A second bidirectional screw 211 is fixedly connected to one end of the power output shaft of the second motor 210. Two second connecting plates 220 are screwed to the outer side of the second bidirectional screw 211. A clamping protrusion 230 is fixedly connected to one side of one side of the second connecting plate 220, and a clamping recess 240 is fixedly connected to one side of the other side of the second connecting plate 220. By starting the second motor 210 according to the specifications of the gear pump, the second bidirectional screw 211 is driven to rotate, causing the two second connecting plates 220 mounted on the second bidirectional screw 211 to move. This causes the clamping protrusion 230 and the clamping recess 240 connected to the two second connecting plates 220 to approach each other to form a V-shaped positioning groove, thereby adjusting the clamping range of the clamping mechanism.

[0031] In summary, it can clamp and fix gear pumps of different specifications, and the adjustment structure is simple and highly stable;

[0032] In practical use, after the clamping mechanism clamps and fixes the gear pump, the clamping force is transmitted to the connecting rod 180, causing the rubber plate 160 connected to the connecting rod 180 to move on the friction rod 151. This causes the friction rod 151 to rub against the friction sleeve 161 on the rubber plate 160, generating damping and buffering the clamping force. Simultaneously, the movement of the rubber plate 160 causes the repulsive magnet 170 mounted on the rubber plate 160 to approach the repulsive magnet 170 mounted on the fixed plate 140, generating a repulsive force, further tightening the clamping force. The force is buffered. When the rubber plate 160 moves to its maximum stroke, the rubber plate 160 contacts and presses against the rubber seat 150, so that the clamping mechanism can firmly clamp the gear pump. According to the specifications of the gear pump, the second motor 210 is started to drive the second bidirectional screw 211 to rotate, so that the two second connecting plates 220 installed on the second bidirectional screw 211 move, so that the clamping protrusions 230 and clamping concave blocks 240 connected to the two second connecting plates 220 approach each other to form a V-shaped positioning groove, thereby adjusting the clamping range of the clamping mechanism.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gear pump test fixture characterized by: Including rotating platform (100) and two installation warehouse (200), the installation warehouse (200) is located above the rotating platform (100), the outer side of the rotating platform (100) is fixedly connected with first motor (110), the power output shaft of the first motor (110) one end penetrates the rotating platform (100) and extends to the inner chamber of the rotating platform (100), and the power output shaft of the first motor (110) one end is fixedly connected with first bidirectional screw rod (111), the outer side of the first bidirectional screw rod (111) is screwed with two first connecting plates (120), the top of the first connecting plate (120) is fixedly connected with electric push rod (130), the top of the electric push rod (130) is fixedly connected with mounting plate (131), one side of the mounting plate (131) is fixedly connected with fixed plate (140), one side of the fixed plate (140) is fixedly connected with rubber seat (150).

2. A gear pump testing fixture according to claim 1, wherein: One side of the rubber seat (150) is fixedly connected with friction rod (151), and the friction rod (151) is evenly distributed in sequence, the outer side of the friction rod (151) is slidably connected with rubber plate (160), one side of the rubber plate (160) is fixedly connected with friction sleeve (161), and the friction sleeve (161) is evenly distributed in sequence.

3. A gear pump testing fixture according to claim 2, wherein: One side of the fixed plate (140) and the rubber plate (160) is fixedly connected with repulsion magnet (170), one side of the rubber plate (160) is fixedly connected with connecting rod (180), the connecting rod (180) is fixedly connected with the installation warehouse (200).

4. The gear pump testing fixture of claim 1, wherein: One side of the installation warehouse (200) is fixedly connected with second motor (210), the power output shaft of the second motor (210) one end penetrates the installation warehouse (200) and extends to the inner chamber of the installation warehouse (200).

5. A gear pump testing fixture according to claim 4, wherein: The power output shaft of the second motor (210) one end is fixedly connected with second bidirectional screw rod (211), the outer side of the second bidirectional screw rod (211) is screwed with two second connecting plates (220).

6. A gear pump testing fixture according to claim 5, wherein: One side of the second connecting plate (220) is fixedly connected with clamping protruding block (230), and the other side of the second connecting plate (220) is fixedly connected with clamping recessed block (240).

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