A filter element for accurately measuring the weight of retarder oil injection and its weight measuring method

Abstract

The present invention discloses a filter element for accurately measuring the weight of retarder oil injection and a weight measuring method thereof. The filter element structure includes a filter element inner layer, a filter element outer layer and a base; a plurality of support columns are provided on the base, the filter element inner layer includes a honeycomb deceleration mechanism, and a positioning hole corresponding to the number of support columns is provided at the bottom of the filter element inner layer. The support columns are installed and connected correspondingly to the positioning holes. The filter element outer layer is sleeved and fixed on the outside of the filter element inner layer, and a one-way valve is provided on the upper part of the filter element outer layer. During the weight measuring process, the base and the filter element can be disassembled. When disassembling the weight measuring filter element, it can prevent the operator from contacting the weight measuring filter element, causing foreign matter to adhere to the weight measuring filter element, or the oil mist on the weight measuring filter element to be contaminated by the operator's hands, thereby avoiding affecting the measurement result of the retarder oil injection amount and effectively improving the accuracy of the measurement result.

Description

Technical Field

[0001] The invention belongs to the technical field of oil filter elements and relates to a filter element used for accurately measuring the weight of retarder oil injection and a weight measuring method thereof. Background Art

[0002] A hydraulic retarder is an auxiliary braking device that utilizes hydraulic braking. During braking, a float valve above the working chamber discharges an oil-air mixture. Reducing and suppressing this discharge is a key aspect of optimizing hydraulic retarder performance. During actual development, the retarder's oil injection volume over a specific period (50 or 100 hours) is measured in milligrams, and even minor internal and external factors can significantly influence the measurement results.

[0003] During the test, the following factors usually affect the measurement results of the retarder injection amount: (1) During the test, the oil-gas mixture in the test room environment condenses on the filter element; (2) When the operator touches the weighing device when disassembling the weighing device, sweat from the hands or other foreign matter adheres to the measuring device, or the oil mist on the measuring device adheres to the operator's hands; (3) Due to poor sealing performance, the oil-gas mixture discharged from the retarder is not completely condensed in the weighing device, and part of it is directly discharged into the atmosphere; (4) It is impossible to detect whether the filter element is saturated. After the filter element is saturated, it cannot continue to absorb the oil-gas mixture, and there is no point in continuing the test. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that due to direct contact between the operator and the measuring device during the weighing process, foreign matter may adhere to the measuring device, or oil mist may be contaminated on the operator's hands, thereby affecting the retarder oil injection quantity measurement structure. A filter element for accurate retarder oil injection weighing and a weighing method thereof are provided.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A filter element for accurately measuring the weight of retarder oil injection comprises an inner filter element layer, an outer filter element layer and a base; the base is provided with a plurality of support columns, the inner filter element layer comprises a honeycomb deceleration mechanism, the bottom of the inner filter element layer is provided with positioning holes corresponding to the number of support columns, the support columns are correspondingly installed and connected to the positioning holes, the outer filter element layer is sleeved and fixed on the outside of the inner filter element layer, and a one-way valve is provided on the upper part of the outer filter element layer.

[0007] A further improvement of the present invention is:

[0008] The inner wall of the outer layer of the filter element is provided with an internal thread, and the outer wall of the inner layer of the filter element is provided with an external thread. The outer layer of the filter element and the inner layer of the filter element are fixedly connected by threads.

[0009] A plurality of lifting ears are evenly arranged on the circumference of the outer wall of the outer layer of the filter element.

[0010] There are three lifting ears on the outer layer of the filter element.

[0011] A handheld bracket is provided on the edge of the base.

[0012] There are three supporting columns on the upper part of the base, and three positioning holes are correspondingly provided on the inner layer of the filter element.

[0013] An inner sealing ring is provided at the end of the inner layer of the filter element, and an outer sealing ring is provided at the end of the outer layer of the filter element.

[0014] A method for accurately measuring the weight of a retarder oil injection filter element comprises the following steps:

[0015] Fill the inner layer of the filter element with filter paper and insert the support column on the base into the positioning hole in the inner layer of the filter element;

[0016] Weigh the base, inner layer of the filter element and filter paper, record their weight as m1, and remove the base;

[0017] Install the inner and outer layers of the filter element through threaded connection, and fix the filter element on the retarder through the lifting lugs on the outer layer of the filter element, so that the inner and outer sealing rings fit the retarder;

[0018] The retarder oil injection test is carried out under the commissioned working conditions. The test duration is recorded as h. During the test, the oil-gas mixture is filtered through the filter paper to filter the retarder oil. The air is discharged from the honeycomb deceleration mechanism to the external one-way valve and finally to the atmosphere. After the test, the filter element is removed and the base is installed.

[0019] Weigh the base, inner layer of the filter element and filter paper again, and record their weight as m2. The oil injection amount of the retarder per unit time is (m2-m1) / h.

[0020] During the experiment, whether the filter paper is saturated is determined by detecting whether oil mist appears on the inner side of the one-way valve cover. After the filter paper is saturated, the test is repeated.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention proposes a filter element for accurately measuring the weight of retarder oil injection, comprising a filter element inner layer, a filter element outer layer and a base; a plurality of support columns are provided on the base, the filter element inner layer comprises a honeycomb deceleration mechanism, a number of positioning holes corresponding to the number of support columns are provided at the bottom of the filter element inner layer, the support columns are correspondingly installed and connected to the positioning holes, the filter element outer layer is sleeved and fixed on the outside of the filter element inner layer, and a one-way valve is provided on the upper part of the filter element outer layer. During the weight measurement process, the base and the filter element can be disassembled. When disassembling the weight-measuring filter element, it can prevent the operator from contacting the weight-measuring filter element, causing foreign matter to adhere to the weight-measuring filter element, or the oil mist on the weight-measuring filter element to be contaminated by the operator's hands, thereby avoiding affecting the measurement result of the retarder oil injection amount and effectively improving the accuracy of the measurement result.

[0023] Furthermore, by setting an inner sealing ring at the end of the inner layer of the filter element and an outer sealing ring at the end of the outer layer of the filter element, the sealing performance of the device is improved, and the oil-gas mixture discharged by the retarder is condensed in the weight measuring filter element, making the measurement result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1a This is the front view of the weight-measuring filter element assembly structure of the present invention. Figure 1b This is a side view of the weight-measuring filter element assembly structure of the present invention. Figure 1c A top view of the weight-measuring filter element assembly structure of the present invention;

[0026] Figure 2a This is the front view of the inner structure of the filter element of the present invention. Figure 2b This is a side view of the inner structure of the filter element of the present invention. Figure 2c This is a top view of the inner structure of the filter element of the present invention;

[0027] Figure 3a This is the front view of the outer structure of the filter element of the present invention. Figure 3b This is a side view of the outer structure of the filter element of the present invention. Figure 3c A top view of the outer structure of the filter element of the present invention;

[0028] Figure 4a This is the front view of the filter element base structure of the present invention. Figure 4b This is a side view of the filter element base structure of the present invention. Figure 4c This is a top view of the filter element base structure of the present invention.

[0029] Among them: 1-1 filter element inner layer, 1-2 filter element outer layer, 1-3 base, 2-1 external thread, 2-2 honeycomb speed reduction mechanism, 2-3 sealing ring, 2-4 positioning hole, 3-1 internal thread, 3-2 lifting ear, 3-3 sealing ring, 3-4 one-way valve, 4-1 support column, 4-2 handheld bracket. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the inventive product is typically placed when in use. These terms are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] The present invention is described in further detail below with reference to the accompanying drawings:

[0037] 1-4, which are schematic diagrams of the structure of the filter element assembly for accurate weight measurement of retarder oil injection in the present invention and schematic diagrams of the structures of the various components, wherein the filter element assembly includes a filter element inner layer 1-1, a filter element outer layer 1-2 and a base 1-3; a plurality of support columns 4-1 are provided on the base 1-3, the filter element inner layer 1-1 includes a honeycomb deceleration mechanism 2-2, and the bottom of the filter element inner layer 1-1 is provided with positioning holes 2-4 corresponding to the number of support columns, and the support columns 4-1 are installed and connected correspondingly to the positioning holes 2-4. The outer filter layer 1-2 is sleeved and fixed onto the exterior of the inner filter layer 1-1. An inner sealing ring 2-3 and an outer sealing ring 3-3 are provided at the ends of the inner filter layer. The inner wall of the outer filter layer 1-2 is provided with an internal thread, while the outer wall of the inner filter layer 1-1 is provided with an external thread. The outer filter layer 1-2 and the inner filter layer 1-1 are fixedly connected via threads. A one-way valve 3-4 is provided on the upper portion of the outer filter layer 1-2, and a number of lifting lugs 3-2 are evenly distributed around the outer wall of the outer filter layer 1-2. The base has three support columns 4-1 on the upper portion, corresponding to the three positioning holes on the inner filter layer 1-1. A handheld bracket 4-2 is provided on the edge of the base.

[0038] The weight measurement method for accurately measuring the weight of a retarder oil injection filter element of the present invention specifically comprises the following steps:

[0039] Fill the filter element inner layer 1-1 with filter paper and insert the support column 4-1 on the base 1-3 into the positioning hole 2-4 of the filter element inner layer 1-1;

[0040] Weigh the base 1-3, the inner layer of the filter element 1-1 and the filter paper, record their weight as m1, and remove the base 1-3;

[0041] Install the filter element inner layer 1-1 and the filter element outer layer 1-2 through threaded connection, fix the filter element on the retarder through the lifting ear 3-2 of the filter element outer layer 1-2, and make the inner sealing ring 2-3 and the outer sealing ring 3-3 fit the retarder;

[0042] Carry out the retarder oil injection test under the commissioned working conditions, and record the test time as h. After the test, remove the filter element and install bases 1-3;

[0043] The base 1-3, the inner layer of the filter element 1-1 and the filter paper are weighed again, and their weight is recorded as m2. The oil injection amount of the retarder per unit time is (m2-m1) / h.

[0044] Example

[0045] When accurately measuring the amount of injected fuel, fill the inner layer of the filter element with filter paper, align the positioning hole 2-4 of the inner layer of the filter element with the support column 4-1 inserted into the base, and the operator wearing disposable rubber gloves holds the handheld bracket 4-2 of the base. Place the base, the inner layer of the filter element, and the filter paper material filled in the inner layer on a precision balance and weigh them. The weight is recorded as m1. Remove the base and place it in a dry and clean environment for subsequent weighing.

[0046] The operator wearing disposable rubber gloves aligns the inner thread 3-1 of the outer layer of the filter element with the outer thread 2-1 of the inner layer of the filter element, and rotates clockwise until the inner and outer layers are firmly combined. Use one end of the wire to tie it to the ear 3-2 of the outer layer of the filter element, and fix the other end to the retarder or test bench to ensure that the inner sealing ring 2-3 and the outer sealing ring 3-3 are tightly combined with the retarder.

[0047] The retarder oil injection test is conducted under the operating conditions specified by the test client, with the test duration recorded as h. During the test, the oil-air mixture is filtered through the inner filter paper material to remove the retarder oil, while air is discharged through the honeycomb reduction mechanism 2-2 to the outer check valve and finally to the atmosphere. During the test, the presence of oil mist on the inner side 3-4 of the valve cover is detected to determine whether the filter paper is saturated. Once the filter paper is saturated, the test is repeated; the weight measurement data of a saturated filter element is invalid.

[0048] After the test is completed, the fixing wire is removed and the entire device is taken down. The operator wearing disposable rubber gloves takes out the stored base, aligns the support column 4-1 of the base with the positioning hole 2-4 inserted into the inner layer, and rotates the outer layer of the filter element counterclockwise until the inner and outer layers are separated.

[0049] Place the base, inner layer and the filter paper material filled in the inner layer on a precision balance and weigh them. The weight is recorded as m2, so (m2-m1) / h is the oil injection volume of the retarder per unit time.

[0050] The present invention provides a filter element for accurately measuring the weight of retarder oil injection. During the weight measurement process, the base and the filter element can be disassembled. When disassembling the weight measuring filter element, it can prevent the operator from coming into contact with the weight measuring filter element, causing foreign matter to adhere to the weight measuring filter element, or the oil mist on the weight measuring filter element to be contaminated by the operator's hands, thereby preventing the oil and gas mixture in the test room environment from condensing on the filter element during the test, avoiding the influence on the retarder oil injection quantity measurement result, and effectively improving the accuracy of the measurement result.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for accurately measuring the weight of a retarder oil injection filter element, characterized in that: The following steps are involved: The filter element includes an inner filter layer, an outer filter layer, and a base; the base is provided with a plurality of support columns, the inner filter layer includes a honeycomb deceleration mechanism, the bottom of the inner filter layer is provided with a number of positioning holes corresponding to the number of support columns, and a one-way valve is provided on the upper portion of the outer filter layer; Fill the inner layer of the filter element with filter paper and insert the support column on the base into the positioning hole in the inner layer of the filter element; Weigh the base, inner layer of the filter element and filter paper, record their weight as m1, and remove the base; Install the inner and outer layers of the filter element through threaded connection, and fix the filter element on the retarder through the lifting lugs on the outer layer of the filter element, so that the inner and outer sealing rings fit the retarder; The retarder oil injection test is carried out under the commissioned working conditions. The test duration is recorded as h. During the test, the oil-gas mixture is filtered through the filter paper to filter the retarder oil. The air is discharged from the honeycomb deceleration mechanism to the one-way valve on the outside and finally discharged into the atmosphere. After the test, remove the filter element as a whole, align the support column of the base with the positioning hole inserted into the inner layer of the filter element, and rotate the outer layer of the filter element counterclockwise until the inner and outer layers are separated; Weigh the base, inner layer of the filter element and filter paper again, and record their weight as m2. The oil injection volume of the retarder per unit time is (m2-m1) / h.

2. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: An internal thread is provided on the inner wall of the outer layer of the filter element, and an external thread is provided on the outer wall of the inner layer of the filter element.

3. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: A plurality of lifting ears are evenly arranged on the circumference of the outer wall of the outer layer of the filter element.

4. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: There are three lifting ears on the outer layer of the filter element.

5. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: A handheld bracket is provided on the edge of the base.

6. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: There are three supporting columns on the upper part of the base, and three positioning holes are correspondingly provided on the inner layer of the filter element.

7. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: An inner sealing ring is provided at the end of the inner layer of the filter element, and an outer sealing ring is provided at the end of the outer layer of the filter element.

8. A method for accurately measuring the weight of a retarder oil injection filter element according to claim 1, characterized in that: During the experiment, whether the filter paper is saturated is determined by detecting whether oil mist appears on the inner side of the one-way valve cover. The test is repeated after the filter paper is saturated.

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