Harmonic reducer with high-temperature early warning function

Abstract

The invention discloses a harmonic reducer with a high-temperature early warning function, and relates to the technical field of harmonic reducers. The harmonic reducer with the high-temperature early warning function comprises a reducer body and further comprises a connecting round frame, the reducer body is fixedly connected with the connecting round frame, the top end of the connecting round frame is fixedly connected with a sensor, the end of the sensor extends into the connecting round frame, and the top end of the reducer body is fixedly connected with an alarm. And the alarm is electrically connected with the sensor, hollow cylinders which are circumferentially distributed at equal intervals are fixedly connected into the connecting round frame, and sliding cylinders are slidably connected into the hollow cylinders. In the using process of the speed reducer body, the sensor can monitor the temperature in the connecting round frame, after the temperature is higher than a preset value, the sensor can control the alarm to give an alarm, when the temperature is too high, lubricating oil in the hollow cylinder can be thrown out of the liquid outlet to fall between the speed reducer body and the connecting round frame, and then the speed reducer body is lubricated and cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of harmonic reducers, and in particular to a harmonic reducer with high temperature warning. Background Art

[0002] In existing industrial robots, automation equipment and precision transmission systems, harmonic reducers are used as core transmission components in a wide range of applications that require high precision and high torque output. However, in the case of long-term operation or excessive load, the temperature inside the harmonic reducer will rise rapidly, which will not only affect the transmission accuracy and service life of the reducer, but may also cause safety accidents in serious cases. At present, although there are some harmonic reducers equipped with sensors on the market, most of them are only used for simple temperature monitoring and lack a timely and effective early warning mechanism. In addition, when the temperature of the harmonic reducer is too high, it does not have a cooling function and cannot meet the requirements for high safety and reliability in practical applications.

[0003] In order to solve the above problems, we propose a harmonic reducer with high temperature warning, which can not only provide high temperature warning but also perform temperature reduction. Summary of the invention

[0004] In order to overcome the shortcomings of the existing harmonic reducer that the temperature is too high and cannot be warned in time and cool down, the present invention provides a harmonic reducer with high temperature warning.

[0005] A harmonic reducer with high temperature warning includes a reducer body and a connecting circular frame. The connecting circular frame is fixedly connected to the reducer body, a sensor is fixedly connected to the top of the connecting circular frame, the end of the sensor extends into the connecting circular frame, an alarm is fixedly connected to the top of the reducer body, the alarm and the sensor are electrically connected, hollow cylinders equidistantly distributed around the circumference are fixedly connected in the connecting circular frame, a sliding cylinder is slidably connected in the hollow cylinder, an oil inlet pipe with a one-way valve is connected to the sliding cylinder, a closed cylinder is slidably connected in the hollow cylinder, the closed cylinder is connected to an adjacent sliding cylinder, a first spring is connected between the closed cylinder and the adjacent hollow cylinder, and a limiting mechanism for limiting the movement of the sliding cylinder is provided on the connecting circular frame.

[0006] Furthermore, a liquid outlet is provided on the hollow cylinder.

[0007] Furthermore, the limiting mechanism includes sliding rods that are evenly distributed around the circumference, which are slidably connected to the connecting circular frame, a second spring is connected between the sliding rods and the connecting circular frame, a limiting circular ring is fixedly connected between the sliding rods that are evenly distributed around the circumference, the limiting circular ring contacts the sliding cylinder and limits it, and an extrusion assembly is provided on the limiting circular ring and the connecting circular frame, and the extrusion assembly is used to squeeze the limiting circular ring to loosen the sliding cylinder.

[0008] Furthermore, the limiting ring is provided with through holes which are evenly distributed for the sliding cylinder to pass through.

[0009] Furthermore, the extrusion assembly includes circumferentially equidistantly distributed matching blocks, which are fixedly connected to the inner wall of the limiting circular ring, and the connecting circular frame is fixedly connected to a circumferentially equidistantly distributed piston cylinder, and a piston rod is slidably connected in the piston cylinder.

[0010] Furthermore, the piston cylinder is filled with a metal with the property of thermal expansion and contraction. When the metal is heated, it expands and is squeezed and matched with the adjacent matching block in the piston rod.

[0011] Furthermore, it also includes a cooling mechanism for cooling the inside of the reducer body, the cooling mechanism is arranged on the reducer body, the cooling mechanism includes a motor, the motor is fixedly connected to the reducer body, the motor and the sensor are electrically connected, a water tank is rotatably connected to the reducer body, an annular plate is rotatably connected to the water tank, a water inlet pipe with a one-way valve is connected to the annular plate, the water inlet pipe passes through the reducer body, an outer gear ring is fixedly connected to the water tank, a gear is fixedly connected to the output shaft of the motor, the gear is meshed with the outer gear ring, equidistantly distributed blocks are slidably connected to the water tank, a third spring is connected between the blocks and the water tank, a wiping assembly is provided in the reducer body, the wiping assembly is used to wipe the inner wall of the reducer body for uniform cooling.

[0012] Furthermore, the wiping assembly includes an inner gear ring, which is rotatably connected to the inner wall of the reducer body, meshing with the gear, and a wiping block is fixedly connected to the inner gear ring, and the wiping block is in contact with the inner wall of the reducer body.

[0013] Furthermore, the wiping block is made of sponge material.

[0014] Furthermore, it also includes a heat dissipation mechanism for dissipating heat within the reducer body. The heat dissipation mechanism is arranged on the reducer body. The heat dissipation mechanism includes a longitudinally symmetrical shell, which is fixedly connected to the reducer body, and a vertically symmetrically distributed fan is fixedly connected to the shell.

[0015] The present invention has the following advantages: during the use of the reducer body, the sensor can monitor the internal temperature of the connecting circular frame. When the temperature is higher than the preset value, the sensor will control the alarm to sound an alarm. When the temperature is too high, the lubricating oil in the hollow cylinder will also be thrown out from the liquid outlet and fall between the reducer body and the connecting circular frame, thereby lubricating and cooling the reducer body. The lubricating oil can reduce the friction between the internal components of the reducer, thereby reducing the heat generated by friction.

[0016] The water in the water tank is thrown outward, and the wiping block is driven to rotate in the opposite direction through the inner gear ring, so that the water can be evenly applied to the inner wall of the reducer body, thereby cooling the inside of the reducer body.

[0017] By controlling the operation of the fan, the hot air in the reducer body can be sucked out, thereby dissipating the heat inside the reducer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the reducer body, connecting circular frame, hollow cylinder and alarm of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the components such as the connecting circular frame, the hollow cylinder and the limiting circular ring of the present invention.

[0022] Figure 5 It is a schematic cross-sectional view of the hollow cylinder, the sliding cylinder, the sealing cylinder and other components of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the matching block, piston cylinder, piston rod and other components of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the motor, outer gear ring, gears and inner gear ring of the present invention.

[0025] Figure 8 It is a schematic cross-sectional view of the water tank, the outer gear ring, the blocking block and the third spring of the present invention.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the reducer body, housing and fan of the present invention.

[0027] The meaning of the reference numerals in the figure are as follows: 1: reducer body, 2: connecting circular frame, 3: sensor, 4: alarm, 5: hollow cylinder, 6: sliding cylinder, 7: first spring, 8: oil inlet pipe, 9: closing cylinder, 10: sliding rod, 11: second spring, 12: limiting ring, 13: matching block, 14: piston cylinder, 15: piston rod, 16: motor, 17: water tank, 171: annular plate, 172: water inlet pipe, 18: outer ring gear, 19: gear, 20: blocking block, 21: third spring, 22: inner ring gear, 23: wiping block, 24: outer casing, 25: fan. DETAILED DESCRIPTION

[0028] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] Embodiment 1: A harmonic reducer with high temperature warning, such as Figure 1-Figure 6 As shown, it includes a reducer body 1, a connecting circular frame 2, a sensor 3, an alarm 4, a hollow cylinder 5, a sliding cylinder 6, a first spring 7, an oil inlet pipe 8, a closed cylinder 9 and a limiting mechanism. The right part of the reducer body 1 is fixedly connected with the connecting circular frame 2, and the upper side of the connecting circular frame 2 is fixedly connected with the sensor 3, the sensor 3 is a temperature sensor 3, and the end of the sensor 3 extends into the connecting circular frame 2. The upper side of the reducer body 1 is fixedly connected with the alarm 4, and the alarm 4 is electrically connected to the sensor 3. Six hollow cylinders 5 equidistantly distributed on the circumference are fixedly connected in the connecting circular frame 2, and a liquid outlet is opened at the inner end of the hollow cylinder 5. The sliding cylinder 6 is slidably connected in the hollow cylinder 5, and the middle part of the sliding cylinder 6 is connected with the oil inlet pipe 8 with a one-way valve. The hollow cylinder 5 is slidably connected with the closed cylinder 9, which is connected to the adjacent sliding cylinder 6. The first spring 7 is connected between the closed cylinder 9 and the adjacent hollow cylinder 5, and a limiting mechanism for limiting the movement of the sliding cylinder 6 is provided on the connecting circular frame 2.

[0030] When the device is used, the rotation of the reducer body 1 will drive the connecting circular frame 2 to rotate, and the rotation of the connecting circular frame 2 will drive the hollow cylinder 5, the sliding cylinder 6, the first spring 7, the oil inlet pipe 8 and the closing cylinder 9 to rotate together. In the initial state, the sliding cylinder 6 is restricted by the limiting mechanism, so it will not slide outward due to the centrifugal force when rotating. During the use of the reducer body 1, the sensor 3 can monitor the internal temperature of the connecting circular frame 2. When the internal temperature of the connecting circular frame 2 is higher than the preset value, the sensor 3 will control the alarm 4 through the controller to sound an alarm. When the temperature inside the connecting circular frame 2 is too high, the limiting mechanism will be misaligned with the sliding cylinder 6. At this time, under the centrifugal force, the oil inlet pipe 8 and the closing cylinder 9 will rotate together. Under the action of force, the sliding cylinder 6 and the closing cylinder 9 will slide outward, the first spring 7 will be deformed, and the closing cylinder 9 will no longer block the liquid outlet on the hollow cylinder 5 after sliding outward. At this time, the lubricating oil in the hollow cylinder 5 can be thrown out from the liquid outlet and fall between the reducer body 1 and the connecting circular frame 2, thereby lubricating and cooling the reducer body 1. When the reducer body 1 stops rotating, under the action of the first spring 7 resetting, the sliding cylinder 6 drives the closing cylinder 9 to slide inward and reset, and then the staff can add lubricating oil into the closing cylinder 9 through the oil inlet pipe 8. In this way, an early warning is given when the temperature of the reducer body 1 is too high, and cooling treatment can be carried out at the same time.

[0031] like Figure 1 , Figure 2, Figure 4 and Figure 6 As shown, the limiting mechanism includes a sliding rod 10, a second spring 11, a limiting ring 12 and an extrusion assembly. Six sliding rods 10 equidistantly distributed around the circumference are slidably connected to the right side of the connecting circular frame 2. The sliding rod 10 is L-shaped. A second spring 11 is connected between the sliding rod 10 and the connecting circular frame 2. A limiting ring 12 is fixedly connected between the six sliding rods 10. The inner side of the limiting ring 12 contacts with the outer end of the sliding cylinder 6 and limits it. Six equidistantly distributed through holes are opened on the limiting ring 12 for the sliding cylinder 6 to pass through. An extrusion assembly is provided on the limiting ring 12 and the connecting circular frame 2. The extrusion assembly is used to squeeze the limiting ring 12 to loosen the sliding cylinder 6.

[0032] like Figure 4 and Figure 6 As shown, the extrusion assembly includes a matching block 13, a piston cylinder 14 and a piston rod 15. Six matching blocks 13 equidistantly distributed around the circumference are fixedly connected to the inner side of the limiting ring 12. Six piston cylinders 14 equidistantly distributed around the circumference are fixedly connected to the inner side of the connecting circle frame 2. The piston cylinder 14 is slidably connected to the piston rod 15. The piston cylinder 14 is filled with zinc metal with the property of thermal expansion and contraction. The zinc metal expands when heated to control the piston rod 15 to be extruded and matched with the adjacent matching blocks 13.

[0033] In the initial state, the limiting ring 12 contacts and limits the outer end of the sliding cylinder 6. When the temperature in the connecting frame 2 is too high, the zinc metal in the piston cylinder 14 expands and squeezes the piston rod 15 to slide outward. The piston rod 15 slides outward and squeezes the matching block 13 to move clockwise. Figure 1 The second spring 11 is deformed, and the limiting ring 12 no longer limits the sliding cylinder 6 after the clockwise rotation. At this time, the sliding cylinder 6 can slide outward through the through hole in the limiting ring 12 to discharge the lubricating oil for cooling. When the temperature in the connecting circle frame 2 is reduced, the zinc metal in the piston cylinder 14 contracts and drives the piston rod 15 to slide inward and no longer squeezes the matching block 13. At this time, since the sliding cylinder 6 passes through the through hole in the limiting ring 12, the limiting ring 12 maintains the state after the clockwise rotation. When the reducer body 1 stops rotating, the sliding cylinder 6 slides inwardly to reset and disengage from the through hole in the limiting ring 12. At this time, under the action of the resetting of the second spring 11, the sliding rod 10 drives the limiting ring 12 to rotate counterclockwise to reset, thereby re-limiting the sliding cylinder 6.

[0034] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 7 and Figure 8As shown, it also includes a cooling mechanism for cooling the interior of the reducer body 1, the cooling mechanism includes a motor 16, a water tank 17, an annular plate 171, a water inlet pipe 172, an outer gear ring 18, a gear 19, a block 20, a third spring 21 and a wiping assembly, the upper left side of the reducer body 1 is fixedly connected to the motor 16, the motor 16 is electrically connected to the sensor 3, the reducer body 1 is rotatably connected to the water tank 17, the left side of the water tank 17 is rotatably connected to the annular plate 171, and the lower part of the annular plate 171 is connected to the The water inlet pipe 172 of the one-way valve, the left end of the water inlet pipe 172 passes through the reducer body 1, the left side of the water tank 17 is fixedly connected to the outer ring gear 18, the output shaft of the motor 16 is fixedly connected to the gear 19, the gear 19 is meshed with the outer ring gear 18, and a circle of equally spaced blocks 20 are slidably connected to the water tank 17. The blocks 20 are composed of a flat plate and a round rod. A third spring 21 is connected between the blocks 20 and the water tank 17. A wiping assembly is provided in the reducer body 1, and the wiping assembly is used to wipe the inner wall of the reducer body 1 for uniform cooling.

[0035] like Figure 7 As shown, the wiping assembly includes an inner gear ring 22 and a wiping block 23. The inner gear ring 22 is rotatably connected to the left part of the reducer body 1. The inner gear ring 22 is meshed with the gear 19. The wiping block 23 is fixedly connected to the inner gear ring 22. The wiping block 23 is in contact with the inner wall of the reducer body 1 and is made of sponge.

[0036] By setting a cooling mechanism, the inside of the reducer body 1 can be further cooled. The specific operation is as follows: when the sensor 3 detects that the temperature is higher than the preset value, the sensor 3 controls the motor 16 to start through the controller, and the output shaft of the motor 16 rotates to drive the gear 19 to rotate. The rotation of the gear 19 drives the outer ring gear 18 and the inner ring gear 22 to rotate in opposite directions respectively. The rotation of the outer ring gear 18 drives the water tank 17 to rotate. The rotation of the water tank 17 causes the block 20 to slide outward due to centrifugal force, and the third spring 21 is deformed. After the block 20 slides outward and opens, the water in the water tank 17 will be thrown out, and the inner ring gear 22 drives the wiping block 23 to rotate in the opposite direction to evenly apply the water to the inner wall of the reducer body 1, thereby cooling the inside of the reducer body 1. When the sensor 3 detects that the temperature drops to a certain range, the sensor 3 controls the motor 16 to turn off. After the water tank 17 stops rotating, the block 20 will also slide inward to block the water tank 17 under the action of the third spring 21 resetting. At the same time, the staff can add water to the water tank 17 through the water inlet pipe 172.

[0037] like Figure 2 and Fig. 9 As shown, it also includes a heat dissipation mechanism for dissipating heat inside the reducer body 1, and the heat dissipation mechanism includes a shell 24 and a fan 25. The left side of the reducer body 1 is fixedly connected to the shell 24 which is symmetrical in front and back, and the inside of the shell 24 is symmetrically fixedly connected to the fan 25.

[0038] The heat dissipation mechanism can be used to dissipate heat inside the reducer body 1 . The specific operation is as follows: when the reducer body 1 is in use, the hot air inside the reducer body 1 can be sucked out by controlling the operation of the fan 25 , thereby dissipating heat inside the reducer body 1 .

[0039] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A harmonic reducer with high temperature warning, comprising a reducer body (1), characterized in that: The invention also comprises a connecting circular frame (2), the connecting circular frame (2) being fixedly connected to the reducer body (1), the top of the connecting circular frame (2) being fixedly connected to a sensor (3), the end of the sensor (3) extending into the connecting circular frame (2), the top of the reducer body (1) being fixedly connected to an alarm (4), the alarm (4) and the sensor (3) being electrically connected, the connecting circular frame (2) being fixedly connected to hollow cylinders (5) distributed equidistantly around the circumference, the hollow cylinders (5) being slidably connected to a sliding cylinder (6), the sliding cylinder (6) being connected to an oil inlet pipe (8) with a one-way valve, the hollow cylinder (5) being slidably connected to a closing cylinder (9), the closing cylinder (9) being connected to an adjacent sliding cylinder (6), a first spring (7) being connected between the closing cylinder (9) and the adjacent hollow cylinder (5), and the connecting circular frame (2) being provided with a limiting mechanism for limiting the movement of the sliding cylinder (6).

2. A harmonic reducer with high temperature warning as claimed in claim 1, characterized in that: The hollow cylinder (5) is provided with a liquid outlet.

3. A harmonic reducer with high temperature warning as claimed in claim 2, characterized in that: The limiting mechanism comprises sliding rods (10) which are equidistantly distributed around the circumference, the sliding rods (10) which are slidably connected to the connecting circular frame (2), a second spring (11) being connected between the sliding rods (10) and the connecting circular frame (2), a limiting circular ring (12) being fixedly connected between the sliding rods (10) which are equidistantly distributed around the circumference, the limiting circular ring (12) being in contact with and limiting the sliding cylinder (6), and an extrusion component being provided on the limiting circular ring (12) and the connecting circular frame (2).

4. A harmonic reducer with high temperature warning as claimed in claim 3, characterized in that: The limiting ring (12) is provided with through holes which are distributed at equal intervals and are used for the sliding cylinder (6) to pass through.

5. A harmonic reducer with high temperature warning as claimed in claim 4, characterized in that: The extrusion assembly comprises matching blocks (13) which are evenly spaced around the circumference. The matching blocks (13) which are evenly spaced around the circumference are fixedly connected to the inner wall of a limiting circular ring (12). A piston cylinder (14) which is evenly spaced around the circumference is fixedly connected to the connecting circular frame (2). A piston rod (15) is slidably connected inside the piston cylinder (14).

6. A harmonic reducer with high temperature warning as claimed in claim 5, characterized in that: The piston cylinder (14) contains metal with the property of thermal expansion and thermal contraction. When the metal is heated, it expands and is pressed and matched with the matching block (13) in the piston rod (15).

7. A harmonic reducer with high temperature warning as claimed in claim 6, characterized in that: The reducer body (1) also includes a cooling mechanism for cooling the interior of the reducer body (1). The cooling mechanism is arranged on the reducer body (1). The cooling mechanism includes a motor (16). The motor (16) is fixedly connected to the reducer body (1). The motor (16) is electrically connected to the sensor (3). The reducer body (1) is rotatably connected to a water tank (17). The water tank (17) is rotatably connected to an annular plate (171). The annular plate (171) is connected to a water inlet pipe (172) with a one-way valve. The tube (172) passes through the reducer body (1), an outer gear ring (18) is fixedly connected to the water tank (17), a gear (19) is fixedly connected to the output shaft of the motor (16), the gear (19) is meshed with the outer gear ring (18), equidistantly distributed blocking blocks (20) are slidably connected to the water tank (17), a third spring (21) is connected between the blocking blocks (20) and the water tank (17), and a wiping assembly is provided inside the reducer body (1), the wiping assembly is used to wipe the inner wall of the reducer body (1) to evenly cool it.

8. A harmonic reducer with high temperature warning as claimed in claim 7, characterized in that: The wiping assembly comprises an inner gear ring (22), the inner gear ring (22) is rotatably connected to the inner wall of the reducer body (1), the inner gear ring (22) is meshed with the gear (19), a wiping block (23) is fixedly connected to the inner gear ring (22), and the wiping block (23) is in contact with the inner wall of the reducer body (1).

9. A harmonic reducer with high temperature warning as claimed in claim 8, characterized in that: The wiping block (23) is made of sponge.

10. A harmonic reducer with high temperature warning as claimed in claim 9, characterized in that: It also includes a heat dissipation mechanism for dissipating heat within the reducer body (1), the heat dissipation mechanism being arranged on the reducer body (1), the heat dissipation mechanism including a longitudinally symmetrical outer shell (24), the longitudinally symmetrical outer shell (24) being fixedly connected to the reducer body (1), and a vertically symmetrically distributed fan (25) being fixedly connected to the outer shell (24).

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