Hub sealing performance testing device

Abstract

The utility model discloses a wheel hub sealing performance testing device which comprises a protection frame, the top of the protection frame is in bolted connection with four groups of testing mechanisms, each testing mechanism comprises a fixing component in bolted connection with the middle position of the protection frame, and the end face position of each fixing component is detachably provided with a wheel hub driving mechanism. The position, close to the hub driving mechanism, of the outer wall of the fixing component is sleeved with a detection unit, the detection unit is in bolted connection with the interior of the protection frame, the inner bottom of the protection frame is in bolted connection with a tensioning assembly, and the tensioning assembly is movably connected to the hub driving mechanism. According to the utility model, the four groups of testing mechanisms are arranged in the protection frame, four hubs can be tested at one time, so that the hub testing efficiency is improved, and the adjustable leakage detection units are arranged in the testing mechanisms respectively, so that workers can operate the hubs conveniently when installing the hubs, and the overall operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub testing applications, in particular to a wheel hub sealing test device. Background Art

[0002] For wheels with tires installed and inflated with air (common on cars, motorcycles and other vehicles), good sealing can ensure that the tire pressure remains stable for a long time and maintain the normal driving performance of the vehicle, including handling stability and fuel economy (for cars). If the wheel hub seal is poor and causes air leakage, the tire pressure will be insufficient, increasing rolling resistance, reducing vehicle handling, and may even cause safety accidents.

[0003] After the wheel hub is produced, it needs to be tested for its oil sealing and mud and water resistance performance. However, the existing wheel hub testing device generally only tests a single wheel hub, which makes the efficiency of the entire wheel hub testing process relatively low. In addition, the traditional wheel hub sealing detection unit cannot be flexibly adjusted during the installation of the wheel hub, which further makes the test cumbersome. Therefore, the utility model proposes a wheel hub sealing test device. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a wheel hub sealing test device. By arranging four groups of test mechanisms inside the protective frame, four wheel hubs can be tested at one time, thereby improving the testing efficiency of the wheel hubs. In addition, adjustable leakage detection units are respectively arranged in the test mechanisms, which facilitates the operation of the staff when installing the wheel hubs and improves the overall operating efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a wheel hub sealing test device, including a protective frame, the top of the protective frame is bolted with four groups of test mechanisms, the test mechanism includes a fixed component bolted to the middle position of the protective frame, the end face of the fixed component is detachably installed with a wheel hub drive mechanism, the outer wall of the fixed component is sleeved with a detection unit near the wheel hub drive mechanism, and the detection unit is bolted to the inside of the protective frame, the inner bottom of the protective frame is bolted with a tensioning assembly, and the tensioning assembly is movably connected to the wheel hub drive mechanism.

[0006] The utility model is further configured as follows: the fixing component includes a fixing seat bolted to the protective frame, a flow guide tube is provided on the top of the fixing seat, a reinforcement cover is engaged with the top of the flow guide tube, the fixing seat and the reinforcement cover are connected and fixed by fastening bolts distributed at the corners, and a thermocouple temperature sensor is installed near the middle of the outer wall of the flow guide tube.

[0007] Through the above technical solution, it is convenient to use the fixing seat to fix it on the protective frame, and the installed guide tube can be installed and fixed in position using the reinforcement cover. When testing the oil seal in the wheel hub, the thermocouple temperature sensor can be used to perform real-time detection of the high temperature caused by long-term rotation of the connection.

[0008] The present invention is further configured as follows: the wheel hub drive mechanism includes a mounting angle plate that is detachably mounted on the bottom inner side of the protective frame; the side wall of the mounting angle plate is bolted to a driving motor; the output shaft of the driving motor passes through the mounting angle plate, and a driving pulley is mounted on the end face; the outer wall of the driving pulley is sleeved with a transmission belt; the inner wall of the transmission belt is sleeved with a driven pulley away from the inner wall of the driving pulley; the end face of the driven pulley is bolted to the wheel hub to be measured.

[0009] Through the above technical solution, the drive motor is started, and its output shaft drives the rotation of the active pulley on the end face, thereby using the transmission belt to drive the driven pulley to rotate stably on the guide tube, thereby driving the wheel hub to be tested connected to the end face to rotate rapidly.

[0010] The utility model is further configured as follows: the driven pulley is interference-fitted with the outer wall of the guide tube near the end face through a bearing installed on the inner wall, and is rotatably connected thereto.

[0011] The above technical solution facilitates the driven pulley to rotate stably on the guide tube through the bearing.

[0012] The utility model is further configured as follows: the detection unit includes a fixed plate bolted to the inside of the protective frame, the top of the fixed plate is slidably connected to an adjustment guide plate, the top center of the adjustment guide plate is bolted to a weight detection sensor, the top of the adjustment guide plate is symmetrically threaded with fixed columns near the side wall, the tops of the two fixed columns are bolted to a connecting plate, and a test paper placement rack is installed on the top of the connecting plate.

[0013] Through the above technical solution, the test paper is placed inside the test paper placement rack to absorb the leaked mud and water, and the weight detection sensor at the bottom can quickly sense the weight after absorption. Finally, an electronic scale can be used to weigh the weight to facilitate the leakage data.

[0014] The utility model is further configured as follows: a limiting shaft is inserted into the top of the fixed plate near the middle position of the front wall, the adjusting guide plate is arranged corresponding to the limiting shaft through a limiting groove opened at the middle position of its front wall, the top of the fixed plate is symmetrically bolted away from the middle position with a slide rail, the adjusting guide plate is slidably connected to the slide rail through a slide seat set at its bottom, the top of the fixed plate is bolted to the side wall position with an adjusting hole rack, and the adjusting guide plate can be inserted into multiple holes opened in the top of the adjusting hole rack through a rotating plunger set through it near the edge of the side wall.

[0015] Through the above technical solution, it is convenient to adjust the guide plate to slide and adjust on the slide rail, and the position of the sliding adjustment guide plate can be limited by using the limiting shaft and limiting groove that cooperate with each other to prevent it from falling off during the adjustment process. At the same time, after adjustment, the adjusting guide plate is limited to the adjustment hole frame and fixed by using a rotating plunger.

[0016] The utility model is further configured as follows: the tensioning assembly includes an L-shaped frame rotatably connected to the corner of the mounting angle plate, the bottom end of the L-shaped frame is rotatably connected to a connecting rod, the bottom of the connecting rod is rotatably connected to a fixed block installed inside the protective frame, the top end of the L-shaped frame is bolted to the corner block, the corner block is rotatably connected to a pressure wheel near the top position, and the outer wall of the pressure wheel is tightly fitted to the outer wall of the transmission belt.

[0017] Through the above technical solution, during the transmission of the transmission belt, it can squeeze the pressure wheel. When the pressure wheel is squeezed, it drives the L-shaped frame to rotate on the side wall of the installation angle plate through the corner block, thereby driving the bottom connecting rod to move, and the position is limited and fixed under the action of the fixed block at the bottom, so that the pressure wheel can effectively press the transmission belt to prevent loosening.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The wheel hub sealing test device proposed in this invention has four sets of testing mechanisms installed inside the protective frame, which can test four wheel hubs at a time, thereby improving the testing efficiency of the wheel hubs;

[0020] 2. The wheel hub sealing test device proposed in the present invention is provided with adjustable leakage detection units in the test mechanism, which facilitates the operation of the staff during the installation of the wheel hub and improves the overall operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a working state diagram of a wheel hub sealing test device of the utility model;

[0022] Figure 2This is a structural diagram of a wheel hub sealing test device of the present utility model;

[0023] Figure 3 This is a structural diagram of a fixed component in a wheel hub sealing test device of the present invention;

[0024] Figure 4 This is a first structural diagram of a wheel hub driving mechanism in a wheel hub sealing test device of the present invention;

[0025] Figure 5 This is a second structural diagram of a wheel hub driving mechanism in a wheel hub sealing test device of the present invention;

[0026] Figure 6 This is a structural diagram of a detection unit in a wheel hub sealing test device of the present invention;

[0027] Figure 7 This is a structural diagram of a tensioning assembly in a wheel hub sealing test device of the present invention.

[0028] In the figure: 1. Protective frame; 2. Test mechanism; 21. Fixing member; 211. Fixing seat; 212. Reinforcement cover; 213. Fastening bolts; 214. Flow guide tube; 215. Thermocouple temperature sensor; 22. Hub drive mechanism; 221. Mounting angle plate; 222. Drive motor; 223. Active pulley; 224. Drive belt; 225. Driven pulley; 226. Hub to be tested; 23. Detection unit; 231. Fixing Fixed plate; 2311, limit shaft; 2312, slide rail; 2313, adjustment hole rack; 232, adjustment guide plate; 2321, limit slot; 2322, rotary plunger; 2323, weight detection sensor; 2324, fixed column; 2325, receiving plate; 2326, test paper placement rack; 24, tensioning assembly; 241, L-shaped frame; 242, connecting rod; 243, fixed block; 244, corner block; 245, pressure wheel. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0030] like Figure 1-Figure 3As shown, a wheel hub sealing test device includes a protective frame 1, and four groups of test mechanisms 2 are bolted to the top of the protective frame 1. The test mechanism 2 includes a fixing component 21 bolted to the middle position of the protective frame 1, and the fixing component 21 includes a fixing seat 211 bolted to the protective frame 1. A guide tube 214 is provided on the top of the fixing seat 211, and a reinforcement cover 212 is engaged with the top of the guide tube 214. The fixing seat 211 and the reinforcement cover 212 are connected and fixed by fastening bolts 213 distributed at the corners. A thermocouple temperature sensor 215 is installed on the outer wall of the guide tube 214 near the middle position, which is convenient for fixing the fixing seat 211 on the protective frame 1, and the reinforcement cover 212 can be used to install and fix the installed guide tube 214 in position. When testing the oil seal in the wheel hub, the thermocouple temperature sensor 215 can be used to perform real-time detection of the high temperature caused by long-term rotation of the connection.

[0031] like Figure 4 and Figure 5 As shown, the end face of the fixing member 21 is detachably mounted with a hub drive mechanism 22, which includes a mounting angle plate 221 detachably mounted on the bottom of the protective frame 1, and a drive motor 222 is bolted to the side wall of the mounting angle plate 221, and the output shaft of the drive motor 222 passes through the mounting angle plate 221, and a driving pulley 223 is mounted on the end face, and a transmission belt 224 is sleeved on the outer wall of the driving pulley 223, and a driven pulley 225 is interference-fitted with the outer wall of the guide tube 214 near the end face through a bearing mounted on the inner wall, and It is rotatably connected to it, so that the driven pulley 225 can rotate stably on the guide tube 214 through the bearing. The inner wall of the transmission belt 224 is away from the inner wall of the driving pulley 223 and is sleeved with the driven pulley 225. The end face of the driven pulley 225 is bolted to the hub 226 to be tested. When the driving motor 222 is started, its output shaft drives the rotation of the driving pulley 223 on the end face, thereby using the transmission belt 224 to drive the driven pulley 225 to rotate stably on the guide tube 214, thereby driving the hub 226 to be tested connected to the end face to rotate rapidly.

[0032] like Figure 6As shown, the outer wall of the fixing member 21 is sleeved with a detection unit 23 near the wheel hub drive mechanism 22, and the detection unit 23 is bolted to the inside of the protective frame 1. The detection unit 23 includes a fixing plate 231 bolted to the inside of the protective frame 1, and the top of the fixing plate 231 is inserted with a limiting shaft 2311 near the middle position of the front wall. The adjustment guide plate 232 is corresponding to the limiting shaft 2311 through the limiting groove 2321 opened in the middle position of its front wall. The top of the fixing plate 231 is symmetrically bolted with a slide rail 2312 away from the middle position. The adjustment guide plate 232 is slidably connected to the slide rail 2312 through a slide seat set at its bottom. The top of the fixing plate 231 is bolted with an adjustment hole frame 2313 near the side wall. The adjustment guide plate 232 can be inserted into a plurality of holes opened in the top of the adjustment hole frame 2313 through a rotating plunger 2322 set through it near the edge of the side wall, so that the adjustment guide plate 232 can be slidably adjusted on the slide rail 2312, and the corresponding The mutually cooperating limiting shaft 2311 and limiting groove 2321 can limit the position of the sliding adjustment guide plate 232 to prevent it from falling off during the adjustment process. At the same time, after adjustment, the rotating plunger 2322 is used to limit the adjustment guide plate 232 on the adjustment hole frame 2313 for fixation. The top of the fixed plate 231 is slidably connected to the adjustment guide plate 232. The top center of the adjustment guide plate 232 is bolted with a weight detection sensor 2323. The top of the adjustment guide plate 232 is symmetrically threaded with a fixing column 2324 near the side wall. The tops of the two fixing columns 2324 are bolted with a receiving plate 2325. A test paper placement rack 2326 is installed on the top of the receiving plate 2325. Putting the test paper into the test paper placement rack 2326 can absorb the leaked mud and water, and the weight detection sensor 2323 at the bottom can quickly sense the absorbed weight. Finally, an electronic scale can be used to weigh its weight to facilitate material leakage data.

[0033] like Figure 7As shown, the inner bottom of the protective frame 1 is bolted to a tensioning assembly 24, and the tensioning assembly 24 is movably connected to the wheel hub drive mechanism 22. The tensioning assembly 24 includes an L-shaped frame 241 rotatably connected to the corner of the mounting angle plate 221, and the bottom end of the L-shaped frame 241 is rotatably connected to a connecting rod 242. The bottom of the connecting rod 242 is rotatably connected to a fixed block 243 installed inside the protective frame 1. The top end of the L-shaped frame 241 is bolted to an angle block 244. The angle block 244 is rotatably connected to a pressure wheel 245 near the top position, and the pressure wheel 245 is pressed. The outer wall of the tension wheel 245 fits tightly against the outer wall of the transmission belt 224. During the transmission of the transmission belt 224, it can squeeze the pressure wheel 245. When the pressure wheel 245 is squeezed, it drives the L-shaped frame 241 to rotate on the side wall of the installation angle plate 221 through the corner block 244, thereby driving the bottom connecting rod 242 to move, and the position is limited and fixed under the action of the fixing block 243 at the bottom, so that the pressure wheel 245 can effectively press the transmission belt 224 to prevent it from loosening.

[0034] When the present invention is in use, the wheel hub 226 to be tested is first bolted to the driven pulley 225, and then the drive motor 222 is started. Its output shaft drives the rotation of the active pulley 223 on the end face, thereby utilizing the transmission belt 224 to drive the driven pulley 225 to rotate stably on the guide tube 214, thereby driving the wheel hub 226 to be tested connected to the end face to rotate rapidly, and then the muddy water flows into the interior of the wheel hub 226 to be tested through the guide tube 214. Under continuous rotation, the thermocouple temperature sensor 215 can detect the high temperature generated at the oil seal in real time, and the muddy water inside the wheel hub 226 to be tested can leak from the connection with the driven pulley 225 in the case of leakage, and then drip onto the test paper inside the test paper placement rack 2326. At the same time, the weight detection sensor 2323 at the bottom can quickly detect the weight or take out the test paper and use an electronic scale to weigh it, so as to understand the amount of muddy water leaked from the wheel hub, and then complete the test operation of the sealing of the entire wheel hub.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wheel hub sealing test device, comprising a protective frame (1), characterized in that: The top of the protection frame (1) is bolted to four sets of test mechanisms (2), and the test mechanisms (2) include a fixed component (21) bolted to the middle position of the protection frame (1), and a wheel hub drive mechanism (22) is detachably mounted on the end surface of the fixed component (21). A detection unit (23) is sleeved on the outer wall of the fixed component (21) near the wheel hub drive mechanism (22), and the detection unit (23) is bolted to the inside of the protection frame (1). The inner bottom of the protection frame (1) is bolted to a tensioning assembly (24), and the tensioning assembly (24) is movably connected to the wheel hub drive mechanism (22).

2. A wheel hub sealing test device according to claim 1, characterized in that: The fixing member (21) comprises a fixing seat (211) bolted to the protective frame (1); a flow guide tube (214) is provided on the top of the fixing seat (211); a reinforcement cover (212) is engaged with the top of the flow guide tube (214); the fixing seat (211) and the reinforcement cover (212) are connected and fixed by fastening bolts (213) distributed at the corners; a thermocouple temperature sensor (215) is installed near the middle of the outer wall of the flow guide tube (214).

3. The wheel hub sealing test device according to claim 2, characterized in that: The hub drive mechanism (22) comprises a mounting angle plate (221) detachably mounted on the inner bottom of the protective frame (1); a driving motor (222) is bolted to a side wall of the mounting angle plate (221); an output shaft of the driving motor (222) passes through the mounting angle plate (221), and a driving pulley (223) is mounted on an end face thereof; a transmission belt (224) is sleeved on an outer wall of the driving pulley (223); a driven pulley (225) is sleeved on an inner wall of the transmission belt (224) away from an inner wall of the driving pulley (223); and a wheel hub (226) to be tested is bolted to an end face of the driven pulley (225).

4. The wheel hub sealing test device according to claim 3, characterized in that: The driven pulley (225) is interference-fitted with the outer wall of the guide tube (214) near the end face via a bearing mounted on the inner wall, and is rotationally connected thereto.

5. The wheel hub sealing test device according to claim 2, characterized in that: The detection unit (23) includes a fixed plate (231) bolted to the inside of the protective frame (1), the top of the fixed plate (231) is slidably connected to an adjustment guide plate (232), the top center of the adjustment guide plate (232) is bolted to a weight detection sensor (2323), the top of the adjustment guide plate (232) is symmetrically threaded with a fixed column (2324) near the side wall, the tops of the two fixed columns (2324) are bolted to a receiving plate (2325), and the top of the receiving plate (2325) is installed with a test paper placement rack (2326).

6. The wheel hub sealing test device according to claim 5, characterized in that: A limiting shaft (2311) is inserted into the top of the fixing plate (231) near the middle of the front wall, and the adjusting guide plate (232) is arranged corresponding to the limiting shaft (2311) through a limiting groove (2321) opened at the middle of the front wall. A slide rail (2312) is symmetrically bolted to the top of the fixing plate (231) away from the middle position. The adjusting guide plate (232) is slidably connected to the slide rail (2312) through a slide seat set at the bottom thereof. An adjusting hole frame (2313) is bolted to the top of the fixing plate (231) near the side wall. The adjusting guide plate (232) can be inserted into a plurality of holes opened in the top of the adjusting hole frame (2313) through a rotating plunger (2322) set through the edge of the side wall.

7. The wheel hub sealing test device according to claim 3, characterized in that: The tensioning assembly (24) includes an L-shaped frame (241) rotatably connected to a corner of the mounting angle plate (221), a bottom end of the L-shaped frame (241) is rotatably connected to a connecting rod (242), the bottom of the connecting rod (242) is rotatably connected to a fixed block (243) installed inside the protective frame (1), a top end of the L-shaped frame (241) is bolted to a corner block (244), the corner block (244) is rotatably connected to a pressure wheel (245) near the top, and the outer wall of the pressure wheel (245) is tightly fitted to the outer wall of the transmission belt (224).

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