Speed reducer with lubricating oil leakage early warning function

Abstract

The invention discloses a speed reducer with a lubricating oil leakage early warning function, and relates to the technical field of speed reducers, the speed reducer comprises a speed reducer body and a transmission shaft, the transmission shaft is rotatably connected to the speed reducer body, the speed reducer further comprises a supporting frame, the supporting frame is arranged on the speed reducer body, and the supporting frame is rotatably connected with sealing frames which are symmetrically arranged; wherein an L-shaped rod is arranged on the side, away from the supporting frame, of one closed frame, a limiting rod is connected to the L-shaped rod in a sliding mode, the limiting rod is matched with the closed frames in a clamped mode, a limiting spring is connected between the limiting rod and the L-shaped rod, collecting pieces are arranged on the closed frames, the two collecting pieces are closed to form a hollow cylinder, and a liquid detector is connected into one collecting piece. When oil leakage occurs at the connecting position of the transmission shaft and the speed reducer body, lubricating oil can flow downwards to the liquid detector, the lubricating oil can be detected through the liquid detector, so that a signal is sent to an external control system, and the effect of lubricating oil leakage early warning is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of reducers, and in particular to a reducer with a lubricating oil leakage warning function. Background Art

[0002] Reducer is a common transmission equipment. It has a wide range of applications, covering various fields from factory automation, transportation to household appliances. Lubricating oil needs to be added inside the reducer. Lubricating oil is essential for the normal operation of the reducer. Lubricating oil can reduce the friction and wear between moving parts such as gears and bearings. During the operation of the reducer, the reducer may leak oil. The lubricating oil generally flows out from the transmission shaft of the reducer or from the oil seal, oil drain hole and other positions. The loss of lubricating oil will cause problems such as increased wear and temperature rise in the reducer. The existing reducer oil leakage needs to be checked regularly by the naked eye. Due to the complex installation environment of the reducer, some parts may be blocked by other equipment, so it is difficult to observe directly with the naked eye, so it is impossible to know in time whether the lubricating oil is leaking.

[0003] Therefore, a reducer with lubricating oil leakage warning is now developed. Summary of the invention

[0004] The present invention provides a reducer with a lubricating oil leakage warning, so as to overcome the disadvantage in the prior art that people need to observe with naked eyes whether the reducer has oil leakage.

[0005] The technical solution is: a reducer with lubricating oil leakage warning, including a reducer body and a transmission shaft, the transmission shaft is rotatably connected to the reducer body, and also includes a support frame, the support frame is fixedly set on the reducer body, the support frame is rotatably connected to two symmetrically arranged closed frames, one of the closed frames is provided with an L-shaped rod on the side away from the support frame, a limiting rod is slidably connected to the L-shaped rod, the limiting rod and the two closed frames are snap-fitted, a limiting spring is connected between the limiting rod and the L-shaped rod, and a collecting piece is provided on each of the two closed frames, the two collecting pieces are fitted together to form a hollow cylinder, a liquid detector is connected to one of the collecting pieces, and the liquid detector and the external control system are electrically connected through a control module.

[0006] Furthermore, it also includes a semicircular sealing ring, and each of the two closed frames is provided with a semicircular sealing ring.

[0007] Furthermore, it also includes a detection mechanism, which includes a circular ring, and the circular ring is connected to a plurality of visual sensors distributed at equal intervals along the circumference of the circular ring, the visual sensors and the external control system are electrically connected through a control module, and the reducer body is provided with a transmission component for driving the circular ring to move, the transmission component includes a fixed rod, the fixed rod is arranged on a side of the reducer body close to the transmission shaft, a transmission shaft is rotatably connected to the fixed rod, a reciprocating screw is fixedly connected to a side of the transmission shaft close to the circular ring, the reciprocating screw and the circular ring are threadedly connected, the circular ring is slidably connected to the guide rod on the fixed rod, the transmission shaft is rotatably connected to two closed frames, a transmission wheel is arranged on the side of the transmission shaft away from the reciprocating screw and on the transmission shaft, and a conveyor belt is arranged between the two transmission wheels.

[0008] Furthermore, an alarm mechanism is included, which includes an air tank, which is arranged on the shell of the reducer body. The air tank and the shell of the reducer body are connected, and a piston rod is slidably connected in the air tank. A support rod is provided on the side of the air tank away from the reducer body, and an alarm is connected to the support rod. The positions of the alarm and the piston rod are correspondingly arranged.

[0009] Furthermore, it also includes a scraping mechanism, which includes a scraping frame. A scraping frame is slidably arranged on each of the two closed frames. An arc spring is connected between the scraping frame and the adjacent closed frame. A pull rope is connected to the scraping frame. A lifting component for pulling the pull rope is arranged between the two closed frames, and a driving component for driving the lifting component to lift and lower is arranged on the support frame.

[0010] Furthermore, the driving assembly includes a support member, which is fixedly arranged on a support frame. A gear is rotatably connected to a side of the support member away from the support frame, and a gear is fixedly connected to a side of the transmission shaft close to the support member, and the two gears are meshed.

[0011] Furthermore, the lifting assembly includes a guide rod, and two closed frames are fixedly connected to a guide rod on one side close to the gear, wherein a first sliding frame is slidably connected to one of the guide rods, and a second sliding frame is slidably connected to the other guide rod, the first sliding frame and the second sliding frame are respectively fixedly connected to two pull ropes, the first sliding frame and the second sliding frame are snap-fitted, and the first sliding frame and the second sliding frame are snap-fitted and spliced ​​into a track, and a connecting column is connected to the side of the gear connected to the support member close to the first sliding frame, and the connecting column is slidably connected to the track.

[0012] Furthermore, an arc-shaped blocking plate is fixedly arranged on each of the two closed frames.

[0013] Furthermore, a gap is provided between the scraper frame and the transmission shaft.

[0014] The beneficial effect is: when oil leakage occurs at the connection position between the transmission shaft and the reducer body of the present invention, the lubricating oil will flow downward to the liquid detector in the collecting piece. The lubricating oil can be detected by the liquid detector, thereby sending a signal to the external control system, thereby achieving the effect of lubricating oil leakage warning.

[0015] When the transmission shaft of the present invention rotates, the transmission shaft is driven to rotate by the transmission wheel and the transmission belt, so that the reciprocating screw drives the circular ring to move left and right, and the visual sensor detects whether there is oil leakage in the housing of the reducer body.

[0016] When the air pressure inside the reducer body increases, the air pressure will push the piston rod to move upward. After the piston rod moves upward to squeeze the push switch of the alarm, the alarm will sound an alarm to remind the staff so that timely maintenance can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the reducer body, transmission shaft, support frame and other components of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the supporting frame, the closing frame, the semicircular sealing ring and other components of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the semicircular sealing ring, the limiting rod and the liquid detector and other components of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the conveying shaft, conveying belt, fixing rod and other components of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the reciprocating screw rod, transmission shaft, circular ring and other components of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the gas storage tank, piston rod, alarm and other components of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the supporting member, the guide rod and the closing frame and other components of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the scraping frame, the closing frame and other components of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the first sliding frame, the second sliding frame, the guide rod and other components of the present invention.

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the first sliding frame, the pull rope, the connecting column and other components of the present invention.

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the scraper frame, arc spring, arc blocking plate and other components of the present invention.

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the closing frame, the pull rope and the scraping frame of the present invention.

[0030] Fig.14 It is a schematic diagram of the three-dimensional structure of the scraping frame and the arc-shaped blocking plate of the present invention.

[0031] Figure numbers: 1, reducer body; 11, transmission shaft; 12, support frame; 13, closing frame; 14, semicircular sealing ring; 15, limiting rod; 16, liquid detector; 17, limiting spring; 18, L-shaped rod; 19, collecting piece; 2, transmission wheel; 21, conveyor belt; 22, transmission shaft; 23, fixed rod; 24, reciprocating screw rod; 25, circular ring; 26, visual sensor; 3, gas tank; 31, piston rod; 32, alarm; 33, support rod; 4, support piece; 41, gear; 42, first sliding frame; 43, second sliding frame; 44, guide rod; 45, connecting column; 46, pull rope; 47, scraper frame; 48, arc spring; 49, arc blocking plate. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0033] Embodiment 1: A reducer with lubricating oil leakage warning, such as Figure 1-Figure 4 As shown, it includes a reducer body 1. It should be noted that: Figure 1In the figure, a is left, b is right, c is front, and d is rear. The right part of the reducer body 1 is rotatably connected with a transmission shaft 11, which is the output shaft of the reducer body 1. A support frame 12 is welded to the lower right part of the reducer body 1. The top of the support frame 12 is symmetrically rotatably connected with two closed frames 13. The two closed frames 13 are connected to a semicircular sealing ring 14 on one side close to each other. The two semicircular sealing rings 14 form a circle. The two semicircular sealing rings 14 are put together and sleeved on the outside of the transmission shaft 11. An L-shaped rod 18 is welded to the upper right part of the rear closed frame 13. The L-shaped rod 18 is slidably connected to the upper right part of the rear closed frame 13. A limiting rod 15 is connected, and the left part of the limiting rod 15 is snap-fitted with the two closed frames 13. A limiting spring 17 is connected between the limiting rod 15 and the L-shaped rod 18. Collecting pieces 19 are provided on the two closed frames 13. The two collecting pieces 19 fit together and form a hollow cylinder for collecting lubricating oil. A liquid detector 16 is connected to the rear collecting piece 19. The liquid detector 16 can adopt the photoelectric liquid level sensor in the prior art. The liquid detector 16 is used to detect whether there is lubricating oil in the collecting piece 19. The liquid detector 16 and the external control system are electrically connected through the control module.

[0034] When the reducer body 1 is working, the transmission shaft 11 and other parts of the reducer body 1 will generate a lot of heat during operation, which will reduce the viscosity of the lubricating oil and easily form dry friction, resulting in wear of the seal at the transmission shaft 11. The lubricating oil will easily seep out from the worn position. If the lubricating oil leaks from the transmission shaft 11, the lubricating oil will flow to the closing frame 13 and then flow into the collecting part 19. When the lubricating oil contacts the liquid detector 16, the liquid detector 16 can detect the presence of the lubricating oil and transmit the signal to the external control system. The staff can then know that the lubricating oil is leaking, and then they can close the reducer body 1 and manually move the limiting rod 15 to the right. , the limiting spring 17 is stretched, and when the limiting rod 15 moves to the right, it no longer blocks the closing frame 13, so that the two closing frames 13 can be rotated to the side away from each other and opened, and then the limiting rod 15 is released, and under the action of the limiting spring 17, the limiting rod 15 is driven to move to the left and reset. In this way, the staff can check the oil leakage part of the reducer body 1 and repair the oil leakage part of the reducer body 1. After that, the two closing frames 13 can be rotated and closed, and the limiting rod 15 is moved to the right again, and the limiting spring 17 is stretched. After the two closing frames 13 are closed, under the action of the limiting spring 17, the limiting rod 15 is driven to move to the left and reset to re-lock the two closing frames 13.

[0035] Embodiment 2: Based on embodiment 1, Figure 5-Figure 6As shown, the reducer with lubricating oil leakage warning also includes a detection mechanism, which includes a circular ring 25. Four visual sensors 26 are fixedly connected to one side of the circular ring 25 close to the transmission shaft 11. The visual sensors 26 can detect whether there are oil stains on the outer shell of the reducer. The visual sensors 26 are electrically connected to the external control system through a control module. A transmission component for driving the circular ring 25 to move left and right is provided at the lower part of the reducer body 1; the transmission component includes a fixed rod 23, the fixed rod 23 is welded to the lower right part of the reducer body 1, a transmission shaft 22 is rotatably connected to the fixed rod 23, a reciprocating screw rod 24 is welded to the left end of the transmission shaft 22, the reciprocating screw rod 24 and the circular ring 25 are threadedly connected, the circular ring 25 is slidably connected to the guide rod on the fixed rod 23, the transmission shaft 22 is rotatably connected to the two closed frames 13, a transmission wheel 2 is provided on the right part of the transmission shaft 22 and the transmission shaft 11, and a conveyor belt 21 is provided between the two transmission wheels 2.

[0036] There may also be oil leakage on the shell of the reducer body 1, so a detection mechanism is set up. When the transmission shaft 11 rotates, the transmission shaft 22 will be driven to rotate through the transmission wheel 2 and the conveyor belt 21. The rotation of the transmission shaft 22 drives the reciprocating screw 24 to rotate, and the rotation of the reciprocating screw 24 drives the circular ring 25 to move left and right. The left and right movement of the circular ring 25 will drive the visual sensor 26 to move left and right. The visual sensor 26 captures the image of the liquid flow through the camera, and processes and analyzes the image to detect potential oil leakage. If there is an oil leakage, the visual sensor 26 will transmit a signal to the external control system, and the staff will be informed of the oil leakage.

[0037] like Figure 7 As shown, the reducer with lubricating oil leakage warning also includes an alarm mechanism, which includes an air tank 3, which is connected to the shell of the reducer body 1 and fixedly connected to the reducer body 1, and a piston rod 31 is slidably connected in the air tank 3. A support rod 33 is provided on the upper right part of the air tank 3, and an alarm 32 is connected to the support rod 33. The positions of the alarm 32 and the piston rod 31 are correspondingly arranged.

[0038] Excessive internal pressure of the reducer body 1 may also cause oil leakage. During the operation of the reducer body 1, the temperature inside the shell will rise due to the frictional heat of the moving pair and the influence of the ambient temperature. If there is no air vent or the air vent is blocked, the internal pressure of the shell will gradually increase. When the internal air pressure of the shell is higher than the external atmospheric pressure, the lubricating oil will leak out from the gap of the shell under the action of the pressure difference. The greater the pressure difference, the higher the possibility of oil leakage. Therefore, an alarm mechanism is set. When the air pressure inside the reducer body 1 gradually increases, the piston rod 31 will move upward due to the push of the air pressure. When the top of the piston rod 31 contacts the press switch of the alarm 32, the alarm 32 will sound an alarm. In this way, the staff can know that the air pressure inside the reducer body 1 has increased, so that the staff can be reminded in time. Later, if the internal air pressure of the reducer body 1 drops, the piston rod 31 will move downward and reset, and the alarm 32 will stop sounding the alarm.

[0039] like Figure 8-Figure 14 As shown, the reducer with lubricating oil leakage warning also includes a scraping mechanism for scraping off the lubricating oil, the scraping mechanism includes a scraping frame 47, a scraping frame 47 is slidably arranged on each of the two closed frames 13, there is a gap between the scraping frame 47 and the transmission shaft 11, an arc spring 48 is connected between the scraping frame 47 and the adjacent closed frame 13, a pull rope 46 is connected to the scraping frame 47, the end of the pull rope 46 away from the scraping frame 47 passes through the adjacent closed frame 13 and extends downward, a lifting assembly for pulling the pull rope 46 is provided between the right parts of the closed frames 13, and a driving assembly for driving the lifting assembly to lift is provided on the right part of the support frame 12; the driving assembly includes a support member 4, the support member 4 is welded to the right rear part of the support frame 12, a gear 41 is rotatably connected to the upper part of the support member 4, a gear 41 is also welded to the right part of the transmission shaft 22, the two gears 41 are meshed, and a connecting column 45 is welded to the left side of the upper gear 41; the lifting assembly includes two guide rods 44, two closed The right part of the frame 13 is fixedly connected to a guide rod 44, and the first sliding frame 42 is slidably connected to the front guide rod 44, and the top of the first sliding frame 42 and the front pull rope 46 are fixedly connected, and the second sliding frame 43 is slidably connected to the rear guide rod 44, and the top of the second sliding frame 43 and the rear pull rope 46 are fixedly connected. The first sliding frame 42 and the second sliding frame 43 are snap-fitted. After the first sliding frame 42 and the second sliding frame 43 are snap-fitted, they can be spliced ​​into a track. Before the two closed frames 13 are affixed, the first sliding frame 42 and the second sliding frame 43 can be moved upward to the highest position of the guide rod 44, and the connecting column 45 is rotated to the highest position. When the two closed frames 13 are affixed, the connecting column 45 is located between the first sliding frame 42 and the second sliding frame 43. When the two closed frames 13 are affixed and the first sliding frame 42 and the second sliding frame 43 are snap-fitted, the connecting column 45 is placed in the spliced ​​track, and the connecting column 45 is slidably connected to the track.

[0040] like Figure 11-Figure 14 As shown, an arc-shaped blocking plate 49 is provided at a position on the closing frame 13 corresponding to the arc-shaped spring 48, and the arc-shaped blocking plate 49 is used to limit the pull rope 46 to prevent the pull rope 46 from contacting the transmission shaft 11 when the pull rope 46 is straightened.

[0041] When oil leaks at the position of the transmission shaft 11, the transmission shaft 11 is easy to throw out the lubricating oil when rotating, so that the lubricating oil will splash onto the closing frame 13, and the lubricating oil will flow down into the collecting member 19 slowly, so a scraping mechanism is provided, and when the transmission shaft 22 rotates, the gear 41 will be driven to rotate, and the rotation of the gear 41 will squeeze the track composed of the first sliding frame 42 and the second sliding frame 43 through the connecting column 45, and drive the first sliding frame 42 and the second sliding frame 43 to move up and down, and during the process, the connecting column 45 will also slide in the composed track, and the first sliding frame 42 and the second sliding frame 43 will move up and down. When the movable frame 43 moves downward, the pull rope 46 is pulled, and the pull rope 46 drives the scraper frame 47 to slide along a semicircular arc trajectory, so that the arc spring 48 is compressed. When the first sliding frame 42 and the second sliding frame 43 move upward, the pull rope 46 is released, and under the resetting action of the arc spring 48, the scraper frame 47 is driven to slide and reset. Repeat the above operation, the scraper frame 47 will intermittently scrape the lubricating oil on the closing frame 13 downward, allowing the lubricating oil to enter the collecting piece 19 faster. By automatically collecting the leaked lubricating oil, it is possible to more quickly detect whether the reducer body 1 is leaking oil.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A reducer with a lubricating oil leakage warning function, comprising a reducer body (1) and a transmission shaft (11), wherein the transmission shaft (11) is rotatably connected to the reducer body (1), and characterized in that: The invention also comprises a support frame (12), the support frame (12) being fixedly arranged on the reducer body (1), the support frame (12) being rotatably connected to two symmetrically arranged closed frames (13), one of the closed frames (13) being provided with an L-shaped rod (18) on a side away from the support frame (12), a limiting rod (15) being slidably connected to the L-shaped rod (18), the limiting rod (15) and the two closed frames (13) being snap-fitted, a limiting spring (17) being connected between the limiting rod (15) and the L-shaped rod (18), each of the two closed frames (13) being provided with a collecting piece (19), the two collecting pieces (19) being fitted together to form a hollow cylinder, one of the collecting pieces (19) being connected to a liquid detector (16), the liquid detector (16) being electrically connected to an external control system via a control module.

2. A reducer with lubricating oil leakage warning according to claim 1, characterized in that: It also includes a semicircular sealing ring (14), and each of the two closed frames (13) is provided with a semicircular sealing ring (14).

3. A reducer with lubricating oil leakage warning according to claim 2, characterized in that: The invention also includes a detection mechanism, which includes a circular ring (25), and a plurality of visual sensors (26) are connected to the circular ring (25) and are distributed at equal intervals along the circumference of the circular ring (25). The visual sensors (26) are electrically connected to an external control system via a control module. The reducer body (1) is provided with a transmission component for driving the circular ring (25) to move. The transmission component includes a fixed rod (23), and the fixed rod (23) is arranged on a side of the reducer body (1) close to the transmission shaft (11). A transmission shaft (22) is rotatably connected, a reciprocating screw rod (24) is fixedly connected to a side of the transmission shaft (22) close to the circular ring (25), the reciprocating screw rod (24) and the circular ring (25) are threadedly connected, the circular ring (25) is slidably connected to a guide rod on a fixed rod (23), the transmission shaft (22) is rotatably connected to the two closed frames (13), a transmission wheel (2) is provided on a side of the transmission shaft (22) away from the reciprocating screw rod (24) and on the transmission shaft (11), and a transmission belt (21) is provided between the two transmission wheels (2).

4. A reducer with lubricating oil leakage warning according to claim 3, characterized in that: The invention also comprises an alarm mechanism, which comprises an air storage tank (3), the air storage tank (3) being arranged on the housing of the reducer body (1), the air storage tank (3) being connected to the housing of the reducer body (1), a piston rod (31) being slidably connected inside the air storage tank (3), a support rod (33) being arranged on a side of the air storage tank (3) away from the reducer body (1), an alarm (32) being connected to the support rod (33), and the positions of the alarm (32) and the piston rod (31) being arranged correspondingly.

5. A reducer with lubricating oil leakage warning according to claim 4, characterized in that: The scraping mechanism also includes a scraping frame (47), wherein each of the two closed frames (13) is slidably provided with a scraping frame (47), an arc spring (48) is connected between the scraping frame (47) and the adjacent closed frame (13), a pull rope (46) is connected to the scraping frame (47), a lifting component for pulling the pull rope (46) is provided between the two closed frames (13), and a driving component for driving the lifting component to be lifted and lowered is provided on the support frame (12).

6. A reducer with lubricating oil leakage warning according to claim 5, characterized in that: The driving assembly comprises a support member (4), the support member (4) being fixedly arranged on a support frame (12), a side of the support member (4) away from the support frame (12) being rotatably connected to a gear (41), and a side of the transmission shaft (22) close to the support member (4) being fixedly connected to a gear (41), and the two gears (41) being meshed with each other.

7. A reducer with lubricating oil leakage warning according to claim 6, characterized in that: The lifting assembly comprises a guide rod (44), one side of the two closed frames (13) close to the gear (41) is fixedly connected to a guide rod (44), one of the guide rods (44) is slidably connected to a first sliding frame (42), and the other guide rod (44) is slidably connected to a second sliding frame (43), the first sliding frame (42) and the second sliding frame (43) are respectively fixedly connected to two pull ropes (46), the first sliding frame (42) and the second sliding frame (43) are snap-fitted, and the first sliding frame (42) and the second sliding frame (43) are snap-fitted to form a track, and a connecting column (45) is connected to a side of the gear (41) connected to the support member (4) close to the first sliding frame (42), and the connecting column (45) is slidably connected to the track.

8. A reducer with lubricating oil leakage warning according to claim 7, characterized in that: An arc-shaped blocking plate (49) is fixedly disposed on each of the two closed frames (13).

9. A reducer with lubricating oil leakage warning according to claim 8, characterized in that: A gap is provided between the scraper frame (47) and the transmission shaft (11).

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