Device for testing axial force of metering pump

Abstract

The utility model discloses a device for testing the axial force of a metering pump. The device comprises a quantity adjusting seat, a connector arranged on the quantity adjusting seat, a regulator seat arranged on the connector, and a quantity adjusting stress rod arranged on the quantity adjusting seat in a sliding manner, the device is characterized by further comprising an adjusting rod movably installed on the adjuster base and a tension and compression sensor connected with the adjusting rod and the quantity adjusting stress rod and used for detecting force. According to the utility model, the tension-compression sensor is arranged between the quantity-adjusting stress rod and the adjusting rod, so that an operator does not need to judge whether the pressing force meets a set standard or not according to experience during the installation and pressure adjustment, and the magnitude value of the force can be accurately detected through the tension-compression sensor; according to the axial force measuring device, model selection can be conducted on the installed bearing according to the measured accurate numerical value of the axial force, it is ensured that the pre-tightening force for installing the bearing in the metering pump meets the set standard, and faults and damage caused by vibration and collision in the working process of the metering pump due to the fact that axial gaps exist are avoided.

Description

Technical Field

[0001] The utility model relates to an axial force test of a metering pump, in particular to an axial force test device of a metering pump. Background Art

[0002] In the prior art, during the operation of the metering pump, the crankshaft will be subjected to the thrust of the piston and generate an axial force. The crankshaft will move up and down after being subjected to the axial force. When the metering pump is assembled, the bearing installed on the crankshaft and the preload force during selection and installation must be determined according to the axial force received. However, if the size of the axial force is unknown, there will be a certain gap if the preload force is not within the set range during assembly, resulting in vibration and impact during the operation of the metering pump. In the case of vibration and impact, it is easy to cause the connected nuts to fly off.

[0003] In the prior art, the relationship between axial force and preload is usually determined by the operator's experience. First, the tightness during the tightening installation is used to determine whether the preload meets the set requirements. This requires long-term work experience of the staff to determine, but this method cannot accurately control the size of the force and there is a large difference. Second, the preload meets the requirements by listening to whether there is a sound after the metering pump is turned on. If there is a sound, it means that the preload is insufficient, there is a gap, and vibration and impact occur. For this reason, a test device for the axial force of a metering pump is proposed. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a device for testing the axial force of a metering pump.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a testing device for the axial force of a metering pump, comprising an adjusting seat, a connecting body installed on the adjusting seat, an adjuster seat installed on the connecting body, and an adjusting force rod slidably installed on the adjusting seat; it is characterized in that it also includes an adjusting rod movably installed on the adjusting seat and a tension and compression sensor connecting the adjusting rod and the adjusting force rod for detecting force.

[0006] Further preferably, it also includes a display connected to the tension and compression sensor via a line for displaying numerical values ​​in real time.

[0007] Further preferably, it also includes a transfer support seat installed at one end of the adjustment rod for installing and connecting the tension and compression sensor.

[0008] Further preferably, the adjusting rod is replaced by an adjusting screw rod, which is connected to the adjuster seat by a threaded connection, and one end of the adjusting screw rod is movably connected to the transfer support seat.

[0009] The beneficial effects of the utility model are as follows: by installing a tension and compression sensor between the adjusting force rod and the adjusting rod, it is not necessary for the operator to rely on experience to judge whether the clamping force meets the set standard when installing the pressure regulator. The tension and compression sensor can be used to accurately detect the magnitude of the force, and the installed bearing can be selected based on the precise value of the measured axial force, and it can be ensured that the preload force of the bearing installed in the metering pump meets the set standard, thereby avoiding the existence of axial clearance, which may cause the metering pump to vibrate and impact during operation, leading to failure and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0011] Attached Figure 2 It is a schematic diagram of the utility model when in use.

[0012] Legend: 1. Adjustment seat; 2. Connecting body; 3. Regulator seat; 4. Adjustment force rod; 5. Adjustment rod; 6. Tension and compression sensor; 7. Adapter support seat. DETAILED DESCRIPTION

[0013] Next, we will further explain the device for testing the axial force of a metering pump described in the present invention in conjunction with the accompanying drawings.

[0014] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0015] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] See also Figure 1-2 As shown in, a test device for the axial force of a metering pump comprises an adjusting seat 1, a coupling body 2 mounted on the adjusting seat 1, an adjuster seat 3 mounted on the coupling body 2, and an adjusting force rod 4 slidably mounted on the adjusting seat 1; it is characterized in that it also comprises an adjusting rod 5 movably mounted on the adjusting seat 3 and a tension and compression sensor 6 connecting the adjusting rod 5 and the adjusting force rod 4 for detecting force; the adjusting force rod 4 is movably connected to the adjusting rod bearing seat in the metering pump, and the adjusting rod bearing seat is used to press the bearing;

[0017] By installing a tension and compression sensor 6 between the adjusting rod 4 and the adjusting rod 5, the operator does not need to rely on experience to judge whether the clamping force meets the set standard when installing the pressure regulator. The tension and compression sensor 6 can accurately detect the magnitude of the axial force. Then, the installed bearing can be selected based on the precise value of the measured axial force, and the preload force of the bearing installed in the metering pump can be ensured to meet the set standard, thereby avoiding axial clearance that causes vibration and impact of the metering pump during operation, resulting in failure and damage.

[0018] In one embodiment, it also includes a display connected to the tension and compression sensor 6 through a line for real-time display of numerical values; during the working process, the magnitude of the axial force can be displayed in real time through the display, which is convenient for the operator to know directly.

[0019] In one embodiment, it also includes a transfer support seat 7 installed at one end of the adjusting rod 5 for installing and connecting the tension and compression sensor 6; a bearing is also installed between the transfer support seat 7 and the adjusting rod 5.

[0020] In one embodiment, the adjusting rod 5 is replaced by an adjusting screw rod, which is connected to the regulator seat 3 by a thread, and one end of the adjusting screw rod is movably connected to the transfer support seat 7; when manual adjustment is adopted or the adjusting rod 5 is driven to rotate by an electric actuator, the adjusting rod 5 is replaced by the adjusting screw rod which is spirally connected to the regulator seat 3, and the amount is adjusted by manually turning the hand wheel or by driving the adjusting screw rod to rotate by the electric actuator;

[0021] When a light rod adjustment rod 5 is used, it can be connected to a pneumatic actuator, and the pneumatic actuator can be used to drive the adjustment rod 5 to move and adjust the amount.

[0022] During assembly of the utility model: first, the operator pre-installs the bearings and other components in the metering pump, then starts the metering pump and detects the value of the axial force through the tension and compression sensor 6, and then uses the precise value of the detected axial force to adjust the tightening force of the bearing seat installation that is movably connected to the adjusting force rod 4, thereby adjusting the pre-tightening force of the bearing seat on the bearing to avoid axial clearance.

[0023] The protection scope of the present utility model is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present utility model.

Claims

1. A device for testing the axial force of a metering pump, comprising a metering seat (1), a coupling body (2) mounted on the metering seat (1), a regulator seat (3) mounted on the coupling body (2), and a metering force-bearing rod (4) slidably mounted on the metering seat (1); wherein: It also includes an adjusting rod (5) movably mounted on the adjusting seat (3) and a tension and compression sensor (6) connecting the adjusting rod (5) and the adjusting force rod (4) for detecting force.

2. A device for testing the axial force of a metering pump according to claim 1, characterized in that: It also includes a display connected to the tension and compression sensor (6) via a line for displaying numerical values ​​in real time.

3. A device for testing the axial force of a metering pump according to claim 1, characterized in that: It also includes a transfer support seat (7) installed at one end of the adjustment rod (5) and used for installing and connecting the tension and compression sensor (6).

4. A device for testing the axial force of a metering pump according to claim 3, characterized in that: The adjusting rod (5) is replaced by an adjusting screw rod, which is connected to the adjuster seat (3) via a threaded connection, and one end of the adjusting screw rod is movably connected to the transfer support seat (7).

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