A pressure relief tool for protecting equipment from overload

Abstract

This utility model relates to the field of oil seal technology, and in particular to a pressure release tool for protecting equipment from overload. It includes a press-in block, a guide seat, a press-out block, a counter block, an oil seal, a guide surface, and a positioning surface. The guide seat is located below the press-in block. The guide post of the press-in block is positioned with a clearance fit between a guide post and the inner hole of the guide seat, and the inner hole of the guide seat is positioned with a clearance fit between a guide post and the guide post of the press-out block. The beneficial effects of this utility model are: the counter block has a specific height, and during the press-in and release process, when the travel limit set by the counter block is reached, the end faces of the press-in block, the press-out block, and the guide seat will not contact each other. This effectively avoids excessive pressure caused by end face contact during the test. By limiting the equipment travel, the possibility of equipment overload is eliminated at the source, protecting the pressure release testing equipment and its overload protection sensor, and reducing sensor damage and equipment failure caused by equipment overload.

Description

Technical Field

[0001] This utility model relates to the field of oil seal technology, and in particular to a pressure release tool for protecting equipment from overload. Background Technology

[0002] In practical applications of oil seals, to effectively avoid difficulties during installation and subsequent detachment, it is necessary to fully consider and set the limit values ​​of the pressing and releasing forces during the initial product design stage. Setting these limit values ​​largely ensures smooth installation and guarantees stability during use. The pressure-release force detection equipment is equipped with an overload protection sensor. This sensor plays a crucial role; when the pressure exceeds the normal range that the equipment can withstand, the sensor will be damaged due to overload, thus alerting the operator to stop applying pressure to prevent further damage to the equipment.

[0003] However, traditional pressure release tools use a mutual contact and limiting method between the pressure release and release tools to achieve the functions of pressing in and releasing oil seals. Specifically, the pressing block contacts and limits the upper end face of the guide seat, while the releasing block contacts and limits the lower end face of the guide seat. Through this end face contact method, the pressing in and releasing operations of the oil seal are completed respectively.

[0004] However, this method has obvious drawbacks. During the end-face contact process, the lack of a clear travel limit can easily lead to excessive pressure on the equipment during operation, resulting in equipment overload and ultimately damage. Summary of the Invention

[0005] The main purpose of this utility model is to provide a pressure relief tool for protecting equipment from overload, aiming to solve the technical problems in the prior art.

[0006] This utility model proposes a pressure relief tool for protecting equipment from overload, comprising, Press-in block, guide seat, press-out block, dial indicator block, oil seal, guide surface and positioning surface; The guide seat is located below the press-in block. The guide post of the press-in block is positioned in a guide clearance fit with the inner hole of the guide seat. The inner hole of the guide seat is positioned in a guide clearance fit with the guide post of the press-out block. The oil seal is positioned at a predetermined position by the guide surface of the guide seat.

[0007] Preferably, the dial gauge block is mounted on the equipment platform, the dial gauge block has a specific height, and the end faces of the pressing block, the pressing block and the guide seat do not contact each other.

[0008] Preferably, the guide seat is provided with positioning holes for guiding the press-in block and the press-out block respectively.

[0009] Preferably, the surface of the positioning hole is smooth and fits the gap between the press-in block and the press-out block.

[0010] Preferably, the upper end of the guide seat is provided with a guide post for installing an oil seal, and the upper end of the guide post is a guide surface with a smooth surface.

[0011] Preferably, the lower end of the guide post is connected to a predetermined position for installing an oil seal.

[0012] Preferably, the guide posts of the press-in block and the press-out block have the same guide clearance as the inner hole of the guide seat.

[0013] Preferably, the guide post at the upper end of the guide seat guides the oil seal through the guide surface, and the positioning surface is positioned in conjunction with the guide surface.

[0014] The beneficial effects of this utility model are as follows: the guide post of the pressing block and the inner hole of the guide seat, and the inner hole of the guide seat and the guide post of the pressing block are all positioned by clearance fit, which ensures that the pressing block and the pressing block can move along the precise predetermined direction during the pressing and releasing process, realizes the linearity of the pressing and releasing action, reduces the problems of oil seal installation position deviation and poor sealing caused by component offset, improves the installation quality and accuracy of the oil seal, enables the oil seal to play a better sealing role in practical applications, and extends the service life of the equipment; The gauge block is set with a specific height to set the equipment stroke. During the pressing and releasing process, when the stroke limit set for the gauge block is reached, the end faces of the pressing block, the releasing block, and the guide seat will not contact each other. This effectively avoids excessive pressure caused by end face contact during the test. By limiting the equipment stroke, the possibility of equipment overload is eliminated from the source, protecting the pressing force detection equipment and its overload protection sensor. This reduces sensor damage and equipment failure caused by equipment overload, lowers maintenance costs and downtime, and improves production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the oil seal in the press-in state during the oil seal release test of this utility model.

[0016] Figure 2 This is a schematic diagram of the oil seal pressure release test process of this utility model.

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] Figure 4 This is a schematic diagram of the structure of the oil seal in the pressure release test state of this utility model.

[0019] In the picture: 1. Press-in block; 2. Guide seat; 3. Press-out block; 4. Alignment block; 5. Oil seal; 6. Guide surface; 7. Positioning surface.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] Example 1 like Figures 1-4 As shown, this application provides a pressure relief tool for protecting equipment from overload, comprising: Press-in block 1, guide seat 2, press-out block 3, dial indicator block 4, oil seal 5, guide surface 6 and positioning surface 7; The guide post of the press-in block 1 is positioned by a guide clearance fit with the inner hole of the guide seat 2, and the inner hole of the guide seat 2 is positioned by a guide clearance fit with the guide post of the press-out block 3. The oil seal 5 is positioned at the predetermined position of the guide seat 2 via the guide surface 6.

[0023] The gauge block 4 is set with a specific height to set the equipment stroke. After the pressing and releasing are completed, the end faces of the pressing block 1, the pressing block 3 and the guide seat 2 do not contact each other to prevent the equipment from being damaged due to overload during the test.

[0024] like Figures 1-4 As shown, the pressing block 1, as the main component performing the pressing action in the pressing tooling, realizes the pressing operation of the oil seal 5 through the guide clearance cooperation between its guide post and the inner hole of the guide seat 2, ensuring the accuracy and stability of the pressing process. The guide clearance cooperation between the guide post and the inner hole of the guide seat 2 allows the pressing block 1 to move along the predetermined direction during the pressing process, ensuring the linearity of the pressing action, reducing the installation problems of the oil seal 5 caused by offset, and improving the quality and accuracy of pressing the oil seal 5. The guide seat 2 provides guidance and positioning for the press-in block 1 and the press-out block 3, ensuring accurate movement trajectories during pressing and releasing. It also serves as the base component for installing the oil seal 5, providing support and positioning for its installation. The inner hole of the guide seat 2 is clearance-fitted with the guide posts of the press-in block 1 and the press-out block 3, allowing them to slide smoothly within the guide seat 2. This ensures smooth pressing and releasing, reduces friction and resistance, and improves the tooling's efficiency. The gauge block 4 is used to set the equipment stroke; its specific height limits the range of motion of the press-in block 1 and the press-out block 3 during pressing and releasing. To prevent equipment damage due to overload during testing, the height of gauge block 4 should be set according to the actual travel requirements of the equipment. The maximum travel required by the equipment during pressing and releasing should be determined, and the height of the gauge block should be set accordingly. After pressing and releasing, the end faces of pressing block 1, pressing block 3 and guide seat 2 do not contact each other, further reducing the overload pressure caused by end face contact and improving the reliability and stability of the equipment. Positioning surface 7 serves as the reference surface for the installation of oil seal 5. Together with guide surface 6, they determine the accurate position of oil seal 5 in guide seat 2, ensuring the stability and reliability of oil seal 5 installation.

[0025] Example 2 like Figure 2 and Figure 3 As shown, the guide seat 2 is provided with positioning holes that guide the press-in block 1 and the press-out block 3 respectively.

[0026] The surface of the positioning hole is smooth and has a clearance fit with the press-in block 1 and the press-out block 3, allowing the tooling to slide freely during the press-in and release process.

[0027] The upper end of the guide seat 2 is provided with a guide post for installing the oil seal 5, and the upper end of the guide post is a guide surface 6, the surface of the guide surface 6 is smooth.

[0028] The lower end of the guide post is connected to a predetermined position for installing the oil seal 5, which is used to prevent the oil seal 5 from being pressed off-center during the pressing process.

[0029] The guide pins of the press-in block 1 and the press-out block 3 have the same guide clearance as the inner hole of the guide seat 2, which is 0.03-0.05mm.

[0030] The guide post at the upper end of the guide seat 2 guides the oil seal 5 through the guide surface 6, and the positioning surface 7 is positioned in conjunction with the guide surface 6.

[0031] like Figure 2 and Figure 3As shown, the positioning holes further improve the guiding accuracy of the press-in block 1 and the press-out block 3, ensuring the stability and reliability of the tooling during the pressing and unpressing process. The guide post and guide surface 6 at the upper end for installing the oil seal 5, and the connecting structure at the lower end connecting to the predetermined position of the oil seal 5, ensure the accurate position of the oil seal 5 during installation, prevent the oil seal 5 from being pressed off-center, and improve the quality of the oil seal 5 installation. The guide surface 6 is used to place the oil seal 5 and guide it into the predetermined position of the guide seat 2, ensuring the accurate position of the oil seal 5 during installation, reducing installation deviation, and the smooth surface of the guide surface 6 makes the oil seal 5 more stable when placed. The push-in block 1 slides smoothly into the guide seat 2, reducing friction and resistance and improving installation efficiency. The push-in block 1 and the guide seat 2 are fitted together with the guide post of the push-in block 1 and the inner hole of the guide seat 2 through a gap of 0.03-0.05mm, forming a sliding guide system. The smoothness of the inner hole of the guide seat 2 ensures that the push-in block 1 does not jam during the pressing process and achieves precise linear movement. The guide post of the push-out block 3 also maintains a gap of 0.03-0.05mm with the inner hole of the guide seat 2, forming a sliding guide during the release process. The guide hole design of the inner hole of the guide seat 2 ensures that the movement trajectory of the push-out block 3 is stable and avoids deviation.

[0032] The pressing block 1 moves downward along the inner hole of the guide seat 2. The oil seal 5 is pressed into the target position under the guidance of the guide post and guide surface 6. The gauge block 4 controls the pressing depth. The clearance fit absorbs excess pressure and prevents equipment overload. During the release stage, the pressing block 3 moves upward along the inner hole of the guide seat 2. The oil seal 5 is smoothly released. The clearance fit and the gauge block 4 together limit the release stroke to avoid damage to the equipment due to excessive stretching. When the pressure is abnormal, the clearance fit structure deforms first. If the pressure continues to increase, the movement is stopped by non-contact limit and overload protection is triggered. A sensor can also be set as a protection to trigger a shutdown signal when the mechanical structure fails. This not only ensures the accuracy of operation, but also significantly improves the safety and stability of the equipment under high pressure.

[0033] The technical principle of this utility model is as follows: Place the dial indicator block 4 on the equipment platform, start the equipment, and after the equipment moves to the same height as the dial indicator block 4, set the stroke, reset and place the guide seat 2 flat on the equipment, place the oil seal 5 at the predetermined position positioning surface 7 of the guide seat 2 through the guide surface 6, place the pressing block 1 to press the oil seal 5, and position the guide column of the pressing block 1 with the guide clearance of the inner hole of the guide seat 2 with a clearance of 0.03-0.05mm. The pressing process is completed from the start of the equipment to the end of the stroke, and the pressing force curve is recorded. The pressing block 1 and the upper end surface of the guide seat 2 do not contact each other, so as not to cause equipment overload. Reset and remove the pressing block 1, place the pressing block 3 on the platform, and place the guide seat 2 with the oil seal 5 installed on the pressing block 3. Position the pressing block 3 by the gap fit between the inner hole of the guide seat 2 and the guide column of the pressing block 3. The fit gap is 0.03-0.05mm. The oil seal 5 is released from the start of the equipment until the end of the stroke. Record the release force curve. The lower end face of the pressing block 3 and the guide seat 2 do not contact each other, so as not to cause equipment overload.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A pressure relief tool for protecting equipment from overload, characterized in that: include, Press-in block (1), guide seat (2), press-out block (3), dial indicator block (4), oil seal (5), guide surface (6) and positioning surface (7); The guide seat (2) is located below the press-in block (1). The guide post of the press-in block (1) is positioned in a guide clearance fit with the inner hole of the guide seat (2). The inner hole of the guide seat (2) is positioned in a guide clearance fit with the guide post of the press-out block (3). The oil seal (5) places the guide seat (2) at a predetermined position positioning surface (7) through the guide surface (6).

2. The pressure relief tool for protecting equipment from overload according to claim 1, characterized in that, The dial gauge block (4) is set on the equipment platform. The dial gauge block (4) has a specific height. The end faces of the press-in block (1), the press-out block (3) and the guide seat (2) do not contact each other.

3. The pressure relief tool for protecting equipment from overload according to claim 1, characterized in that, The guide seat (2) is provided with positioning holes that guide the press-in block (1) and the press-out block (3) respectively.

4. The pressure relief tool for protecting equipment from overload according to claim 3, characterized in that, The surface of the positioning hole is smooth and has a clearance fit with the press-in block (1) and the press-out block (3).

5. The pressure relief tool for protecting equipment from overload according to claim 1, characterized in that, The upper end of the guide seat (2) is provided with a guide post for installing an oil seal (5), and the upper end of the guide post is a guide surface (6), the surface of the guide surface (6) is smooth.

6. The pressure relief tool for protecting equipment from overload according to claim 5, characterized in that, The lower end of the guide post on the guide seat (2) is connected to a predetermined position for installing the oil seal (5).

7. The pressure relief tool for protecting equipment from overload according to claim 1, characterized in that, The guide posts of the press-in block (1) and the press-out block (3) have the same guide clearance as the inner hole of the guide seat (2).

8. The pressure relief tool for protecting equipment from overload according to claim 1, characterized in that, The guide post at the upper end of the guide seat (2) guides the oil seal (5) through the guide surface (6), and the positioning surface (7) cooperates with the guide surface (6) for positioning.

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