Lubricating grease low-temperature torque testing device
By using a grease inlet and sealing structure in the low-temperature torque testing device for grease, the problem of grease leakage was solved, and the grease was properly coated on the bearing, ensuring the accuracy of the test results and the cleanliness of the device.
Patent Information
- Application Number
- CN202520471163.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-18
AI Technical Summary
In existing low-temperature torque testing devices for grease, grease tends to flow off the bearings during long-term testing, leading to inaccurate test results and contamination of the test chamber.
A low-temperature torque testing device for grease was designed. The device uses a grease inlet to inject grease into the bearing and a sealing structure to prevent it from flowing out. The grease inlet channel and receiving groove ensure that the grease is coated on the bearing. The device is then combined with a cable-connected torque measuring device for testing.
It effectively prevents grease from flowing down the bearing in low-temperature environments, ensuring the accuracy of test results and the cleanliness of the device, thus improving the reliability of the test.
Smart Images
Figure CN223856622U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lubricating grease testing equipment technical field more specifically, relate to a kind of lubricating grease low temperature torque testing device. BACKGROUND
[0002] In prior art, in the experimental process of production and deployment of lubricating grease, lubricating grease needs to be tested in multiple environments and multiple conditions, one of which is to test the influence of lubricating grease in low temperature environment. By smearing lubricating grease on the bearing, rotating the inner ring of the bearing, and connecting the outer ring of the bearing to the torque measuring machine through a cable, the lowest temperature that the lubricating grease can withstand and the influence of temperature on the lubricating grease can be tested by measuring the change of torque in a low temperature environment. However, the existing experimental equipment directly smears lubricating grease on the bearing. Since lubricating grease has a certain fluidity, it will flow off the bearing after a long period of testing, resulting in inaccurate test results and the risk of dirtying the test box. Therefore, a technical solution is needed to solve the above problems. SUMMARY
[0003] The utility model aims at overcoming the shortcomings of the prior art, preventing lubricating grease from flowing off the bearing, and providing a lubricating grease low temperature torque testing device.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0005] The utility model discloses a kind of lubricating grease low temperature torque testing devices, including testing machine, connecting device, the testing machine is equipped with test box, the side of the test box is equipped with rotating table, the connecting device is installed in the rotating table, the rotating table includes shaft, first connecting piece, second connecting piece, bearing, grease inlet part, the shaft is connected with the rotating table, the bearing is installed in the shaft, the first connecting piece is equipped with first ring plate, the first ring plate is fixedly connected with the bearing, the second connecting piece is fixedly installed in the first connecting piece side close to the rotating table, the second connecting piece is equipped with second through-hole, the shaft passes through the second through-hole, gap is equipped between the second through-hole and the shaft, the first connecting piece is equipped with first through-hole, the first through-hole is communicated with the bearing, the grease inlet part is installed in one end of the first through-hole away from the bearing, the grease inlet part is equipped with grease inlet.
[0006] Further, the grease inlet part includes a shell and an inner shell, a grease inlet channel is formed between the shell and the inner shell, the grease inlet channel is communicated with the first through-hole, and the grease inlet is located in the shell. The grease inlet is communicated with the grease inlet channel.
[0007] Further, the grease feeding member is funnel-shaped, the large-diameter end of the outer shell is installed on the side of the first connecting member away from the second connecting member, and the grease feeding port is located at the small-diameter end of the outer shell, and the large-diameter end of the inner shell is close to the rotating shaft.
[0008] Further, the grease feeding member is provided with a plurality of connecting plates, the connecting plates are fixedly connected with the outer shell and the inner shell, and the plurality of connecting plates are annularly distributed in the grease feeding channel.
[0009] Further, the second connecting member is provided with a third annular plate, the third annular plate is funnel-shaped, the diameter of the third annular plate gradually increases in the direction close to the first connecting member, and the inner wall of the third annular plate abuts against the outer end edge of the first annular plate.
[0010] Further, the first connecting member is provided with a plurality of connecting rods, the plurality of connecting rods are annularly distributed, the plurality of connecting rods extend in the direction of the second connecting member, the connecting rods are provided with inserting rods, the inserting rods are located at one end of the connecting rods in the direction of the second connecting member, the second connecting member is provided with inserting grooves corresponding to the inserting rods, and the inserting rods are inserted into the inserting grooves.
[0011] Further, the second connecting member is provided with a baffle, the baffle is located on the side of the second connecting member away from the first connecting member, a receiving groove is formed between the baffle and the side wall of the second connecting member, and the receiving groove is located below the second through hole.
[0012] Further, the connecting device comprises a third connecting member and a cable, the third connecting member is fixedly installed on the first connecting member and the second connecting member, the third connecting member is located on the side of the first connecting member away from the second connecting member, the first connecting member is provided with a second annular plate, and the cable is fixedly connected to the outer side surface of the second annular plate.
[0013] The beneficial effects of the utility model are as follows:
[0014] The utility model discloses a grease feeding member installed on the first connecting member pours lubricating grease into the bearing, pours lubricating grease from the grease feeding port until the bearing is filled, lubricating grease overflows between the second through hole and the rotating shaft, the other end of the bearing is received through the receiving groove, the receiving groove can receive lubricating grease flowing from the second through hole, and the lubricating grease can be prevented from flowing down from the bearing, so that the lubricating grease can always coat the bearing during the experiment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic view of the embodiment.
[0016] Figure 2 It is a sectional view of the connecting device in the embodiment.
[0017] Figure 3 This is a schematic diagram of the second connector in this embodiment.
[0018] Figure 4 This is a schematic diagram of a grease inlet component in this embodiment.
[0019] Reference numerals: 1. Testing machine; 11. Testing box; 12. Rotary table; 2. Connecting device; 21. Rotating shaft; 22. First connecting piece; 221. First ring plate; 222. Second ring plate; 223. Connecting rod; 2231. Insert rod; 224. First through hole; 23. Second connecting piece; 231. Second through hole; 232. Third ring plate; 233. Baffle; 2331. Receiving groove; 234. Slot; 24. Bearing; 25. Grease inlet; 251. Outer shell; 252. Inner shell; 253. Grease inlet channel; 254. Grease inlet; 255. Connecting plate; 26. Third connecting piece; 3. Cable. Detailed Implementation
[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment discloses a low-temperature torque testing device for lubricating grease, including a testing machine 1 and a connecting device 2. The testing machine 1 is equipped with a testing chamber 11, which can adjust the temperature inside the testing chamber 11 to keep the testing environment at a low temperature. A rotating platform 12 is provided on the side of the testing chamber 11. The rotating platform 12 is controlled to rotate by a motor inside the testing machine 1. The connecting device 2 is installed on the rotating platform 12. The rotating platform 12 includes a rotating shaft 21, a first connecting member 22, a second connecting member 23, a bearing 24, and a grease inlet 25. The rotating shaft 21 is connected to the rotating platform 12 and is fixedly installed on the rotating platform 12. The rotation of the rotating platform 12 can drive the rotating shaft 21 to rotate. The bearing 24 is installed on the rotating shaft 21, and the inner ring of the bearing 24 is fixed at the end of the rotating shaft 21 away from the rotating platform 12. The rotating shaft 21 drives the bearing 24 to rotate.
[0022] The first connecting piece 22 is provided with a first ring plate 221 fixedly connected with the bearing 24. The second connecting piece 23 is fixedly installed on one side of the first connecting piece 22 close to the rotating table 12. The first connecting piece 22 is provided with a plurality of connecting rods 223 distributed in a ring shape. The plurality of connecting rods 223 extend towards the second connecting piece 23. The connecting rod 223 is provided with a plug rod 2231 located at one end of the connecting rod 223 towards the second connecting piece 23. The second connecting piece 23 is provided with a plug groove 234 corresponding to the plug rod 2231. The plug rod 2231 is inserted into the plug groove 234. The connecting rod 223 and the second connecting piece 23 are fixedly connected by screws. Meanwhile, the second connecting piece 23 is provided with a third ring plate 232 in a funnel shape. The diameter of the third ring plate 232 gradually increases towards the first connecting piece 22. The inner wall of the third ring plate 232 abuts against the outer end edge of the first ring plate 221, so that the third ring plate 232 and the first ring plate 221 are sealed. More preferably, when the third ring plate 232 abuts against the first ring plate 221, the plug rod 2231 does not abut against the inner end of the plug groove 234, and the connecting rod 223 does not abut against the side of the second connecting piece 23 towards the first connecting piece 22. Gradual tightening of the screws makes the third ring plate 232 better abut against the first ring plate 221, so that the sealing effect is better, and the lubricating grease cannot flow out from between the first ring plate 221 and the third ring plate 232.
[0023] The first connecting piece 22 is provided with a first through hole 224 communicating with the bearing 24. The lubricating grease feeder 25 is installed at one end of the first through hole 224 away from the bearing 24. The lubricating grease feeder 25 includes an outer shell 251 and an inner shell 252. The lubricating grease feeder 25 is in a funnel shape. The large-diameter end of the outer shell 251 is installed on one side of the first connecting piece 22 away from the second connecting piece 23. A lubricating grease inlet 254 is located at the small-diameter end of the outer shell 251. The large-diameter end of the inner shell 252 is close to the rotating shaft 21. The outer shell 251 and the inner shell 252 form a lubricating grease channel 253 therebetween. The lubricating grease channel 253 communicates with the first through hole 224. The opening of the lubricating grease channel 253 towards the bearing 24 is annular and corresponds to the bearing 24. The lubricating grease feeder 25 is provided with the lubricating grease inlet 254 located at the outer shell 251. The lubricating grease inlet 254 communicates with the lubricating grease channel 253. The lubricating grease entering through the lubricating grease inlet 254 can enter the first through hole 224 and then be annularly injected into the bearing 24, so that the entire bearing 24 can be completely covered by the lubricating grease. After the lubricating grease is injected through the lubricating grease inlet 254, a plug is used to plug to prevent the lubricating grease from flowing back.
[0024] The lubricating grease feeder 25 is provided with a plurality of connecting plates 255 fixedly connecting the outer shell 251 and the inner shell 252. The plurality of connecting plates 255 are annularly distributed in the lubricating grease channel 253. The connecting plates 255 are fixed by welding. The connecting plates 255 can support the lubricating grease channel 253.
[0025] The second connecting piece 23 is provided with a second through hole 231, the rotating shaft 21 passes through the second through hole 231, and a gap is arranged between the second through hole 231 and the rotating shaft 21, so that the second connecting piece 23 cannot contact the rotating shaft 21, and after the lubricating grease fills the first through hole 224 and the bearing 24, the lubricating grease enters the second through hole 231, and whether the gap between the second through hole 231 and the rotating shaft 21 appears the lubricating grease during the process of injecting the lubricating grease can judge whether the lubricating grease is filled.
[0026] The second connecting piece 23 is provided with a baffle 233, the baffle 233 is located on the side, away from the first connecting piece 22, of the second connecting piece 23, a receiving groove 2331 is formed between the baffle 233 and the side wall of the second connecting piece 23, the receiving groove 2331 is located below the second through hole 231, and the receiving groove 2331 is in a semi-ring shape; when the rotating shaft 21 rotates, part of the lubricating grease can flow out from the gap between the second through hole 231 and the rotating shaft 21, and the receiving groove 2331 can receive the part of the lubricating grease.
[0027] The connecting device 2 comprises a third connecting piece 26 and a cable 3, the third connecting piece 26 is fixedly installed on the first connecting piece 22 and the second connecting piece 23, the third connecting piece 26 is located on the side, away from the second connecting piece 23, of the first connecting piece 22, the first connecting piece 22 is provided with a second ring plate 222, the cable 3 is fixedly connected to the outer side of the second ring plate 222, one end of the cable 3 is fixed on the second ring plate 222, and the other end is connected to a torque measuring device; when the rotating shaft 21 rotates, the torque can be detected by measuring the tension received by the cable 3, the third connecting piece 26 is connected through a plurality of connecting rods, and the third connecting piece 26 is used for balancing the stress balance of the connecting device 2 on both sides of the cable 3, so as to prevent the rotating shaft 21 and the first connecting piece 22 from deviating and causing damage to the bearing 24.
[0028] The above only describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments, and any technical solutions falling within the concept of the present application belong to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application can also be regarded as the protection scope of the present application.
Claims
1. A grease low temperature torque testing device characterized by, The utility model relates to a test machine, it includes test machine (1), connecting device (2), the test machine (1) is equipped with test box (11), the side of test box (11) is equipped with rotating table (12), connecting device (2) is installed in rotating table (12), rotating table (12) includes pivot (21), first connecting piece (22), second connecting piece (23), bearing (24), grease feeding part (25), pivot (21) connects rotating table (12), bearing (24) is installed in pivot (21), first connecting piece (22) is equipped with first ring plate (221), first ring plate (221) fixedly connected bearing (24), second connecting piece (23) is fixedly installed in first connecting piece (22) one side close to rotating table (12), second connecting piece (23) is equipped with second through -hole (231), pivot (21) passes through second through -hole (231), and the clearance between second through -hole (231) and pivot (21) is equipped with, first connecting piece (22) is equipped with first through -hole (224), and first through -hole (224) communicates bearing (24), and grease feeding part (25) is installed in first through -hole (224) one end away from bearing (24), and grease feeding part (25) is equipped with grease inlet (254).
2. The grease low temperature torque testing device of claim 1, wherein, The utility model relates to a test machine, it includes test machine (1), connecting device (2), the test machine (1) is equipped with test box (11), the side of test box (11) is equipped with rotating table (12), connecting device (2) is installed in rotating table (12), rotating table (12) includes pivot (21), first connecting piece (22), second connecting piece (23), bearing (24), grease feeding part (25), pivot (21) connects rotating table (12), bearing (24) is installed in pivot (21), first connecting piece (22) is equipped with first ring plate (221), first ring plate (221) fixedly connected bearing (24), second connecting piece (23) is fixedly installed in first connecting piece (22) one side close to rotating table (12), second connecting piece (23) is equipped with second through -hole (231), pivot (21) passes through second through -hole (231), and the clearance between second through -hole (231) and pivot (21) is equipped with, first connecting piece (22) is equipped with first through -hole (224), and first through -hole (224) communicates bearing (24), and grease feeding part (25) is installed in first through -hole (224) one end away from bearing (24), and grease feeding part (25) is equipped with grease inlet (254).
3. A grease low temperature torque testing apparatus according to claim 2, wherein, The utility model relates to a test machine, it includes test machine (1), connecting device (2), the test machine (1) is equipped with test box (11), the side of test box (11) is equipped with rotating table (12), connecting device (2) is installed in rotating table (12), rotating table (12) includes pivot (21), first connecting piece (22), second connecting piece (23), bearing (24), grease feeding part (25), pivot (21) connects rotating table (12), bearing (24) is installed in pivot (21), first connecting piece (22) is equipped with first ring plate (221), first ring plate (221) fixedly connected bearing (24), second connecting piece (23) is fixedly installed in first connecting piece (22) one side close to rotating table (12), second connecting piece (23) is equipped with second through -hole (231), pivot (21) passes through second through -hole (231), and the clearance between second through -hole (231) and pivot (21) is equipped with, first connecting piece (22) is equipped with first through -hole (224), and first through -hole (224) communicates bearing (24), and grease feeding part (25) is installed in first through -hole (224) one end away from bearing (24), and grease feeding part (25) is equipped with grease inlet (254).
4. The grease low temperature torque testing device of claim 2, wherein, The utility model relates to a test machine, it includes test machine (1), connecting device (2), the test machine (1) is equipped with test box (11), the side of test box (11) is equipped with rotating table (12), connecting device (2) is installed in rotating table (12), rotating table (12) includes pivot (21), first connecting piece (22), second connecting piece (23), bearing (24), grease feeding part (25), pivot (21) connects rotating table (12), bearing (24) is installed in pivot (21), first connecting piece (22) is equipped with first ring plate (221), first ring plate (221) fixedly connected bearing (24), second connecting piece (23) is fixedly installed in first connecting piece (22) one side close to rotating table (12), second connecting piece (23) is equipped with second through -hole (231), pivot (21) passes through second through -hole (231), and the clearance between second through -hole (231) and pivot (21) is equipped with, first connecting piece (22) is equipped with first through -hole (224), and first through -hole (224) communicates bearing (24), and grease feeding part (25) is installed in first through -hole (224) one end away from bearing (24), and grease feeding part (25) is equipped with grease inlet (254).
5. The grease low temperature torque testing device of claim 1, wherein, 6. The grease low temperature torque testing device of claim 1, wherein, The first connecting piece (22) is provided with a plurality of connecting rods (223), the plurality of connecting rods (223) are annularly distributed, the plurality of connecting rods (223) extend towards the second connecting piece (23), the connecting rod (223) is provided with a plug rod (2231), the plug rod (2231) is located at one end of the connecting rod (223) towards the second connecting piece (23), the second connecting piece (23) is provided with a plug groove (234) corresponding to the plug rod (2231), and the plug rod (2231) is inserted into the plug groove (234).
7. The grease low temperature torque testing device of claim 1, wherein, The second connecting piece (23) is provided with a baffle (233), the baffle (233) is located on the side of the second connecting piece (23) away from the first connecting piece (22), a receiving groove (2331) is formed between the baffle (233) and the side wall of the second connecting piece (23), and the receiving groove (2331) is located below the second through hole (231).
8. The grease low temperature torque testing device of claim 1, wherein, The connecting device (2) comprises a third connecting piece (26) and a cable (3), the third connecting piece (26) is fixedly installed on the first connecting piece (22) and the second connecting piece (23), the third connecting piece (26) is located on the side of the first connecting piece (22) away from the second connecting piece (23), the first connecting piece (22) is provided with a second ring plate (222), and the cable (3) is fixedly connected to the outer side of the second ring plate (222).