Air chamber stroke testing device

Abstract

The utility model provides an air chamber stroke testing device, which relates to the technical field of air chamber stroke testing and comprises an air cavity mechanism and a measuring mechanism. The measuring mechanism comprises a cylinder body, the outer surface wall of the cylinder body is fixedly communicated with an air inlet nozzle, one end of the air inlet nozzle is fixedly communicated with a cylinder inflation pipe, the outer surface wall of the cylinder body is fixedly provided with a displacement sensor, and the telescopic end of the cylinder body is fixedly connected with an air chamber push rod. The outer surface wall of the air chamber push rod is sleeved with a spring connecting base, an air chamber spring is fixedly installed at the bottom of the spring connecting base, and a rod head is fixedly installed at one end of the air chamber push rod. According to the utility model, the displacement sensor is fixedly arranged on the outer surface wall of the air cylinder body, and high-precision sensor signal output is utilized, so that displacement data can be acquired in real time, the monitoring of displacement related test parameters is met, the application range of the air cylinder is widened, and the air cylinder has the characteristics of flexibility and variability.

Description

Technical Field

[0001] The utility model relates to the technical field of air chamber stroke testing, in particular to an air chamber stroke testing device. Background Art

[0002] During the testing process of the automatic adjusting arm and the air pressure disc brake, there is a need to measure the stroke of the air chamber push rod. Currently, vernier calipers are used as the basis for measurement.

[0003] In the prior art, when using vernier calipers to measure the stroke of the air chamber push rod, it is impossible to ensure the measurement accuracy, which greatly affects the accuracy of the measurement results, and it is impossible to reflect and record the real-time change of the push rod stroke. Summary of the Utility Model

[0004] The utility model mainly provides an air chamber stroke testing device that improves the measurement accuracy and is convenient for recording the real-time change of the push rod stroke.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an air chamber stroke testing device, comprising: an air chamber mechanism and a measuring mechanism; the measuring mechanism includes a cylinder body, an air inlet nozzle is fixedly communicated with the outer surface wall of the cylinder body, one end of the air inlet nozzle is fixedly communicated with a cylinder charging pipe, a displacement sensor is fixedly arranged on the outer surface wall of the cylinder body, the telescopic end of the cylinder body is fixedly connected with an air chamber push rod, a spring connecting seat is sleeved on the outer surface wall of the air chamber push rod, an air chamber spring is fixedly installed at the bottom of the spring connecting seat, and a rod head is fixedly installed at one end of the air chamber push rod.

[0006] Preferably, the air chamber mechanism includes a first base, an air chamber diaphragm is arranged inside the first base, a limiting block is fixedly connected to the top of the air chamber diaphragm, and the limiting block is arranged on the top of the first base.

[0007] Preferably, a second base is arranged on the top of the limiting block, and an air chamber charging pipe is fixedly communicated with the outer surface wall of the first base.

[0008] Preferably, an air outlet pipe is fixedly communicated with the outer surface wall of the second base, and an air blocking plug is clamped inside the air outlet pipe.

[0009] Preferably, a sealing sleeve ring is sleeved on the outer surface walls of the first base, the limiting block and the second base, and fixing blocks are fixedly installed at both ends of the sealing sleeve ring.

[0010] Preferably, a bolt is inserted through the inside of the fixing block, and the bolt is threadedly connected with the fixing block.

[0011] Preferably, the air chamber push rod sequentially penetrates through the inside of the first base, the air chamber diaphragm and the second base. The top of the spring connection seat is fixedly connected to the inner wall of the bottom of the second base, and the bottom of the air chamber spring is fixedly connected to the inner wall of the top of the air chamber diaphragm.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by fixedly arranging a displacement sensor on the outer wall of the cylinder body, and using the high-precision sensor signal output, the displacement data can be collected in real time, meeting the monitoring of displacement-related test parameters, increasing its applicable range, and having the characteristics of flexibility and variability.

[0014] 2. In the present utility model, by fixedly arranging a displacement sensor on the outer wall of the cylinder body, and collecting the displacement signal of the air chamber push rod by using the displacement sensor, the indirect measurement of the stroke of the air chamber push rod is completed, making the measurement result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a gas chamber stroke test device proposed by the present utility model;

[0016] Figure 2 is a three-dimensional structural sectional view of a gas chamber stroke test device proposed by the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the air chamber mechanism in a gas chamber stroke test device proposed by the present utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the measuring mechanism in a gas chamber stroke test device proposed by the present utility model.

[0019] Legend: 1. Air chamber mechanism; 101. First base; 102. Air chamber diaphragm; 103. Limit block; 104. Second base; 105. Air chamber charging pipe; 106. Outlet pipe; 107. Air blocking plug; 108. Sealing sleeve ring; 109. Fixed block; 110. Bolt; 2. Measuring mechanism; 201. Cylinder body; 202. Air inlet nozzle; 203. Cylinder charging pipe; 204. Displacement sensor; 205. Air chamber push rod; 206. Spring connection seat; 207. Air chamber spring; 208. Rod head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0022] Please refer to Figures 1 - 4 The present utility model provides a technical solution: an air chamber stroke testing device, comprising: an air chamber mechanism 1 and a measuring mechanism 2; the measuring mechanism 2 includes a cylinder body 201, an air inlet nozzle 202 is fixedly communicated with the outer surface wall of the cylinder body 201, one end of the air inlet nozzle 202 is fixedly communicated with a cylinder charging pipe 203, a displacement sensor 204 is fixedly arranged on the outer surface wall of the cylinder body 201, the telescopic end of the cylinder body 201 is fixedly connected with an air chamber push rod 205, a spring connection seat 206 is sleeved on the outer surface wall of the air chamber push rod 205, an air chamber spring 207 is fixedly installed at the bottom of the spring connection seat 206, and a rod head 208 is fixedly installed at one end of the air chamber push rod 205; by sequentially inserting the air chamber push rod 205 through the inside of a first base 101, an air chamber diaphragm 102 and a second base 104, fixedly connecting one end of the air chamber push rod 205 with the cylinder body 201, fixedly communicating the air inlet nozzle 202 with the outer surface wall of the cylinder body 201, fixedly communicating one end of the air inlet nozzle 202 with the cylinder charging pipe 203, sleeving the spring connection seat 206 on the outer surface wall of the air chamber push rod 205, fixedly connecting the top of the spring connection seat 206 with the inner wall of the bottom of the second base 104, then fixedly installing the air chamber spring 207 at the bottom of the spring connection seat 206, fixedly connecting one end of the air chamber spring 207 with the inner wall of the top of the air chamber diaphragm 102, giving a small air pressure to the cylinder body 201 by the cylinder charging pipe 203, the pressure caused by this small air pressure on the air chamber diaphragm 102 by the air chamber push rod 205 is much lower than the pressure of the air chamber spring 207 on the air chamber diaphragm 102, so that the air chamber push rod 205 can continuously press against the air chamber diaphragm 102, and the air chamber diaphragm 102 and the air chamber push rod 205 in the air chamber are in rigid contact, so that the actions of the contact surfaces are consistent; during operation, the air chamber is inflated through an air chamber charging pipe 105, so that the air chamber diaphragm 102 deforms and pushes the air chamber push rod 205 to move forward, the air chamber push rod 205 will closely adhere to the air chamber diaphragm 102 and move forward synchronously with the air chamber push rod 205. During the movement, the air chamber spring 207 is deformed under pressure. When the air chamber deflates, the pressure on the air chamber spring 207 decreases, and it gradually recovers its deformation, pushing the air chamber diaphragm 102 together with the air chamber push rod 205 towards one end of the first base 101. Finally, a displacement sensor 204 is fixedly arranged on the outer surface wall of the cylinder body 201, and the displacement signal of the air chamber push rod 205 is collected by the displacement sensor 204, so as to indirectly measure the stroke of the air chamber push rod 205 and make the measurement result more accurate.

[0023] As Figure 3As shown, the air chamber mechanism 1 includes a first base 101. An air chamber diaphragm 102 is arranged inside the first base 101. A limiting block 103 is fixedly connected to the top of the air chamber diaphragm 102, and the limiting block 103 is arranged on the top of the first base 101. By providing the first base 101 and the second base 104, an air chamber is formed by the two, and the advancing distance of the air chamber push rod 205 is measured by the deformation of the air chamber diaphragm 102 arranged inside the first base 101 under pressure.

[0024] As Figure 3 shown, a second base 104 is arranged on the top of the limiting block 103, and an air chamber charging pipe 105 is fixedly communicated with the outer surface wall of the first base 101. By fixedly communicating the air chamber charging pipe 105 with the outer surface wall of the first base 101, it is convenient to fill the air chamber with gas by using the air chamber charging pipe 105, so as to conduct measurement.

[0025] As Figure 3 shown, an air outlet pipe 106 is fixedly communicated with the outer surface wall of the second base 104, and an air blocking plug 107 is clamped inside the air outlet pipe 106. The air outlet pipe 106 is sealed by the air blocking plug 107, and it is taken out when deflating, which is convenient for deflating the air chamber.

[0026] As Figure 3 shown, a sealing sleeve ring 108 is sleeved on the outer surface walls of the first base 101, the limiting block 103 and the second base 104, and fixing blocks 109 are fixedly installed at both ends of the sealing sleeve ring 108. By sleeving the sealing sleeve ring 108 on the outer surface walls of the first base 101, the limiting block 103 and the second base 104, it is convenient to enhance the sealing effect at the connection, avoid gas leakage during inflation, and affect the measurement accuracy.

[0027] As Figure 3 shown, a bolt 110 is inserted through the inside of the fixing block 109, and the bolt 110 is threadedly connected to the fixing block 109. By providing the threaded connection between the bolt 110 and the fixing block 109, it is convenient to connect the first base 101, the limiting block 103 and the second base 104.

[0028] As Figures 1 - 4 shown, the air chamber push rod 205 sequentially passes through the inside of the first base 101, the air chamber diaphragm 102 and the second base 104. The top of the spring connection seat 206 is fixedly connected to the bottom inner wall of the second base 104, and the bottom of the air chamber spring 207 is fixedly connected to the top inner wall of the air chamber diaphragm 102. By passing the air chamber push rod 205 through the first base 101, the air chamber diaphragm 102 and the second base 104 in sequence, it is convenient to keep the air chamber push rod 205 balanced and stable, and then the air chamber spring 207 is used to restore the air chamber diaphragm 102 when the air chamber deflates.

[0029] Usage method and working principle of the device: When the device is in use, first, set the first base 101 and the second base 104, and use the two to form a sealed air chamber. Set an air chamber diaphragm 102 inside the first base 101, and fixedly install a limit block 103 on the top of the air chamber diaphragm 102 to facilitate the fixation of the air chamber diaphragm 102. Set a sealing collar 108 on the outer walls of the first base 101, the limit block 103, and the second base 104, and use the threaded connection of the bolt 110 and the fixing block 109 to connect the first base 101, the air chamber diaphragm 102, and the second base 104 together; Secondly, fixedly connect an air chamber charging pipe 105 to the outer wall of the first base 101, fixedly connect an air outlet pipe 106 to the outer wall of the second base 104, and snap a gas blocking plug 107 inside the air outlet pipe 106. Fill the air chamber with gas through the air chamber charging pipe 105, and use the gas blocking plug 107 to snap onto the air outlet pipe 106 to seal the air chamber; Then, insert the air chamber push rod 205 through the first base 101, the air chamber diaphragm 102, and the second base 104 in sequence. Fix a cylinder body 201 at one end of the air chamber push rod 205, fixedly connect an air inlet nozzle 202 to the outer wall of the cylinder body 201, fixedly connect a cylinder charging pipe 203 to one end of the air inlet nozzle 202, set a spring connection seat 206 on the outer wall of the air chamber push rod 205, fixedly connect the top of the spring connection seat 206 to the bottom inner wall of the second base 104, and then fixedly install an air chamber spring 207 at the bottom of the spring connection seat 206. Connect one end of the air chamber spring 207 to the top inner wall of the air chamber diaphragm 102. Give a small air pressure to the cylinder body 201 by the cylinder charging pipe 203. This small air pressure causes the pressure exerted by the air chamber push rod 205 on the air chamber diaphragm 102 to be much lower than the pressure of the air chamber spring 207 on the air chamber diaphragm 102, so that the air chamber push rod 205 can continuously press against the air chamber diaphragm 102. The air chamber diaphragm 102 and the air chamber push rod 205 in the air chamber are in rigid contact, making the contact surface actions consistent; During operation, inflate the chamber through the air chamber charging pipe 105 to deform the air chamber diaphragm 102 and push the air chamber push rod 205 forward. The air chamber push rod 205 will closely adhere to the air chamber diaphragm 102 and move forward synchronously with the air chamber push rod 205. During the movement, the air chamber spring 207 is deformed under pressure. When the air chamber deflates, the pressure received by the air chamber spring 207 decreases, and it gradually recovers its deformation, pushing the air chamber diaphragm 102 together with the air chamber push rod 205 towards one end of the first base 101. Finally, fixedly set a displacement sensor 204 on the outer wall of the cylinder body 201, and use the displacement sensor 204 to collect the displacement signal of the air chamber push rod 205, thereby indirectly measuring the stroke of the air chamber push rod 205 and making the measurement result more accurate.

[0030] The above are only the preferred embodiments of the present utility model and do not limit the present utility model in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gas chamber stroke testing device, characterized in that, Comprising: An air cavity mechanism (1) and a measuring mechanism (2); The measuring mechanism (2) includes a cylinder body (201), an air inlet nozzle (202) is fixedly communicated with the outer surface wall of the cylinder body (201), one end of the air inlet nozzle (202) is fixedly communicated with a cylinder charging pipe (203), a displacement sensor (204) is fixedly arranged on the outer surface wall of the cylinder body (201), a gas chamber push rod (205) is fixedly connected to the telescopic end of the cylinder body (201), a spring connection seat (206) is sleeved on the outer surface wall of the gas chamber push rod (205), a gas chamber spring (207) is fixedly installed at the bottom of the spring connection seat (206), and a rod head (208) is fixedly installed at one end of the gas chamber push rod (205).

2. The air chamber stroke testing device according to claim 1, characterized in that: The air cavity mechanism (1) includes a first base (101), an air chamber diaphragm (102) is arranged inside the first base (101), a limiting block (103) is fixedly connected to the top of the air chamber diaphragm (102), and the limiting block (103) is arranged on the top of the first base (101).

3. The air chamber stroke testing device according to claim 2, wherein: A second base (104) is arranged on the top of the limiting block (103), and an air chamber charging pipe (105) is fixedly communicated with the outer surface wall of the first base (101).

4. The air chamber stroke testing device according to claim 3, characterized in that: An air outlet pipe (106) is fixedly communicated with the outer surface wall of the second base (104), and an air blocking plug (107) is clamped inside the air outlet pipe (106).

5. The air chamber stroke testing device according to claim 3, characterized in that: A sealing sleeve ring (108) is sleeved on the outer surface walls of the first base (101), the limiting block (103) and the second base (104), and fixing blocks (109) are fixedly installed at both ends of the sealing sleeve ring (108).

6. The air chamber stroke testing device according to claim 5, wherein: A bolt (110) is inserted through the inside of the fixing block (109), and the bolt (110) is threadedly connected with the fixing block (109).

7. The air chamber stroke testing device according to claim 3, wherein: The gas chamber push rod (205) sequentially penetrates through the inside of the first base (101), the air chamber diaphragm (102) and the second base (104), the top of the spring connection seat (206) is fixedly connected to the inner wall of the bottom of the second base (104), and the bottom of the gas chamber spring (207) is fixedly connected to the inner wall of the top of the air chamber diaphragm (102).

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