Steady-state worm gear speed reducer
By designing cooling chambers and oil change parts in the worm gear reducer, using oil circulation cooling and memory alloy automatic control, the problem of heat accumulation of worm gear reducer under high load is solved, and steady-state operation and service life are extended.
Patent Information
- Application Number
- CN202411691978.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-01-07
AI Technical Summary
Existing worm gear reducers are prone to heat accumulation under high load conditions, resulting in thermal expansion and stuck in worm gear, making it difficult to achieve steady-state operation, affecting service life.
A steady-state worm gear reducer is designed, using a combined structure of cooling chamber and oil change parts, which is cooled through oil circulation, and uses the first impeller, memory alloy and other components to automatically control the oil circulation, so as to achieve efficient heat dissipation of oil and reduce the The probability of worm gear and worm stuck.
It effectively extends the service life of the reducer, improves heat dissipation efficiency, reduces the probability of worm gear and worm stuck, and ensures steady-state operation in complex environments.
Smart Images
Figure CN119267538A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of speed reducers, and in particular to a steady-state worm gear speed reducer. Background Art
[0002] At present, in the field of industrial production and precision instruments, mechanical transmission equipment, especially reducers, are widely used. Such equipment is usually used to reduce the speed of the main motor and adjust it to a speed range suitable for the operation of mechanical equipment.
[0003] The reducers on the current market mainly include gear reducers, worm gear reducers and other forms. Among them, worm gear reducers are widely used due to their good self-locking performance, but they are prone to heat accumulation under high load conditions, and the worm gear is prone to jamming due to thermal expansion. In the face of complex and changeable working environments, it is difficult to achieve true steady-state operation, which affects the service life of the reducer. Summary of the invention
[0004] In order to extend the service life of the reducer, the present application provides a steady-state worm gear reducer.
[0005] The present application provides a steady-state worm gear reducer adopts the following technical solution: A steady-state worm gear reducer comprises a housing, a worm, a worm wheel and an oil-changing member, wherein the housing is provided with an installation cavity and a placement cavity, the installation cavity is provided above the placement cavity, the placement cavity is connected to the installation cavity, the worm rotates around its own axis and is connected to the inner wall of the installation cavity, the worm wheel rotates around its own axis and is connected to the inner wall of the placement cavity, the worm wheel meshes with the worm, the housing is provided with a cooling cavity, the cooling cavity is provided at the periphery of the placement cavity, the upper end of the cooling cavity is connected to the installation cavity, the lower end of the cooling cavity is connected to the placement cavity, the oil-changing member is connected to the worm, and the oil-changing member is used to replace the oil in the installation cavity into the cooling cavity.
[0006] By adopting the above technical scheme, the cooling chamber is used to cool the oil, the oil temperature in the installation chamber is relatively high, and the oil in the installation chamber is controlled to enter the cooling chamber, the oil in the cooling chamber enters the placement chamber, and the oil in the placement chamber enters the installation chamber, so that the oil circulates, heat dissipation is facilitated, and the service life of the reducer is extended.
[0007] Preferably, the oil changing part includes a first impeller, the upward inner wall of the mounting cavity is provided with a connecting port, the connecting port is connected to the mounting cavity and the cooling cavity, the first impeller is detachably connected to the outer wall of the worm, the first impeller is coaxially arranged with the worm, and the first impeller is arranged between the placement cavity and the connecting port.
[0008] By adopting the above technical solution, the first impeller rotates to move the oil, and the oil with higher temperature at the meshing point of the worm and the worm wheel flows into the connecting port. The oil is cooled in the cooling chamber, and the oil in the placement chamber moves to supplement the oil in the installation chamber, thereby realizing oil circulation, facilitating heat dissipation, and extending the service life of the reducer.
[0009] Preferably, the oil changing part also includes a fixing ring, the first impeller includes a sliding ring and a fan blade, the sliding ring is coaxially rotatably connected to the outer wall of the worm, the fan blade is fixedly connected to the outer wall of the sliding ring, the fixing ring is arranged between the first impeller and the connecting port, the fixing ring is coaxially fixedly connected to the outer wall of the worm, a slot is provided at one end of the fixing ring facing the sliding ring, an insert block is fixedly connected to one end of the sliding ring facing the fixing ring, and the slot is used for the insert block to be embedded.
[0010] By adopting the above technical solution, when the oil temperature in the installation cavity is too high, the sliding ring is controlled to slide so that the insert block is embedded in the slot, and the rotation of the worm drives the fixed ring to rotate, thereby driving the first impeller to rotate synchronously, promoting oil circulation, and extending the service life of the reducer.
[0011] Preferably, there are a plurality of slots, and the plurality of slots are evenly spaced around the axis of the fixing ring, and the insert block abuts against the slot wall of the slot.
[0012] By adopting the above technical solution, multiple plug-ins and slots make it easy for the plug-ins to be embedded in the slots, thereby improving the connection efficiency between the sliding ring and the fixed ring and extending the service life of the reducer.
[0013] Preferably, the oil-changing part also includes a first bearing and a connecting rod, the first bearing is arranged on the side of the fan blade away from the fixed ring, the inner ring of the first bearing is coaxially fixedly connected to the outer wall of the sliding ring, one end of the connecting rod is fixedly connected to the outer ring of the first bearing, and the other end of the connecting rod is slidably connected to the inner wall of the mounting cavity, and the sliding direction of the connecting rod is parallel to the axis of the worm.
[0014] By adopting the above technical solution, the sliding of the connecting rod drives the sliding of the first bearing, so that the first impeller slides. When the first impeller is away from the fixed ring, the oil does not circulate. When the first impeller is close to the fixed ring so that the insert block is inserted into the slot, the fan blades rotate to promote oil circulation, improve heat dissipation efficiency, and extend the service life of the reducer.
[0015] Preferably, the oil-changing part also includes a fixing plate and a memory alloy, wherein the fixing plate is fixedly connected to the inner wall of the mounting cavity, one end of the memory alloy is fixedly connected to the fixing plate, and the other end of the memory alloy is fixedly connected to the connecting rod, and when the temperature of the oil near the memory alloy rises to a deformation temperature, the memory alloy deforms so that the plug is embedded in the slot, and when the temperature of the oil near the memory alloy drops to a temperature for restoring the deformation, the memory alloy restores the deformation so that the first impeller moves away from the fixing ring.
[0016] By adopting the above technical solution, the memory alloy automatically controls the connection between the first impeller and the fixed ring, so that oil circulation is automatically performed when the temperature is high, which facilitates the replacement of the oil with a higher temperature into the cooling chamber for cooling, reduces the probability of the worm gear getting stuck, and prolongs the service life of the reducer.
[0017] Preferably, it also includes an auxiliary part, which includes a second impeller, a second bearing, a connecting ring and a pull rod, the auxiliary part is arranged on the side of the worm wheel away from the first impeller, the second impeller is coaxially rotatably connected to the worm, the inner ring of the second bearing is coaxially fixedly connected to the end of the second impeller facing the first impeller, the connecting ring is arranged on the side of the second bearing away from the second impeller, the connecting ring is coaxially fixedly connected to the worm, the end of the connecting ring facing the second bearing is provided with an embedding groove, the inner ring of the second bearing facing one end of the connecting ring is coaxially fixedly connected with an embedding block, the embedding groove is used for the embedding block to be embedded, one end of the pull rod is fixedly connected to the connecting rod, and the other end of the pull rod is fixedly connected to the outer ring of the second bearing.
[0018] By adopting the above technical solution, the first impeller rotates and the second impeller rotates synchronously. The rotation of the second impeller causes the oil to flow toward the first impeller, which helps to discharge the oil in the installation cavity into the cooling cavity, thereby improving the heat dissipation efficiency.
[0019] Preferably, it also includes a covering member, which includes a covering plate and a push rod, the covering plate is slidably connected to the inner wall of the installation cavity, the covering plate is used to cover the connecting port, one end of the push rod is fixedly connected to the covering plate, and the other end of the push rod is fixedly connected to the outer ring of the first bearing.
[0020] By adopting the above technical solution, when the first impeller does not rotate, the covering plate covers the connecting port, reducing the probability of heat exchange between the oil in the cooling chamber and the oil in the installation chamber, thereby facilitating cooling of the oil in the cooling chamber.
[0021] Preferably, an oil inlet is provided at the upper end of the shell, the oil inlet is connected to the installation cavity, an oil outlet is provided at the lower end of the shell, the oil outlet is connected to the placement cavity, and the lower end of the cooling cavity is connected to the oil outlet.
[0022] By adopting the above technical solution, the internal oil of the reducer needs to be replaced at regular intervals, and the oil inlet and outlet are convenient for users to change the oil, thereby extending the service life of the reducer.
[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The cooling chamber is used to cool the oil. The temperature of the oil in the installation chamber is relatively high. The oil in the installation chamber is controlled to enter the cooling chamber, the oil in the cooling chamber enters the placement chamber, and the oil in the placement chamber enters the installation chamber, so that the oil circulates, which is convenient for heat dissipation and prolongs the service life of the reducer; 2. The rotation of the first impeller moves the oil, and the oil with higher temperature at the meshing point of the worm and the worm wheel flows into the connecting port. The oil is cooled in the cooling chamber, and the oil in the placement chamber moves to supplement the oil in the installation chamber, realizing oil circulation, facilitating heat dissipation, and extending the service life of the reducer; 3. The memory alloy automatically controls the connection between the first impeller and the fixed ring, realizing automatic oil circulation when the temperature is high, facilitating the replacement of the high temperature oil to the cooling chamber for cooling, reducing the probability of the worm gear getting stuck, and extending the service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of a steady-state worm gear reducer.
[0025] Figure 2 It is a cross-sectional view of the housing, worm, worm wheel, seal, oil change parts, auxiliary parts and cover parts.
[0026] Figure 3 It is a schematic diagram of the overall structure of the housing, worm, worm wheel and seal.
[0027] Figure 4 yes Figure 2 Enlarged view of point A in the middle.
[0028] Figure 5 yes Figure 2 Enlarged view of point B in the middle.
[0029] Description of reference numerals: 1, housing; 10, heat dissipation fin; 11, installation cavity; 111, communication port; 112, dovetail groove; 12, placement cavity; 121, oil guide groove; 13, first installation port; 14, second installation port; 15, first placement port; 16, second placement port; 17, oil inlet; 18, oil outlet; 19, cooling cavity; 2, worm; 21, first rotating column; 22, second rotating column; 3, worm wheel; 4, driving motor; 5, sealing member; 51, first sealing gasket; 52, second sealing ring; 53, third sealing ring; 5 4. Fourth sealing ring; 55. Oil plug; 56. Sealing cover; 6. Oil changing parts; 61. First impeller; 611. Sliding ring; 6111. Insert; 612. Fan blade; 62. Fixed ring; 621. Slot; 63. First bearing; 64. Connecting rod; 641. Dovetail block; 65. Fixed plate; 66. Memory alloy; 7. Auxiliary parts; 71. Second impeller; 72. Second bearing; 721. Insert; 73. Connecting ring; 731. Insert groove; 74. Partition; 75. Pull rod; 8. Cover; 81. Cover plate; 82. Push rod. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-5 This application is described in further detail.
[0031] The present application embodiment discloses a steady-state worm gear reducer. Figure 1 and Figure 2 A steady-state worm gear reducer includes a housing 1, a worm 2, a worm wheel 3, a drive motor 4, a sealing member 5, an oil change member 6, an auxiliary member 7 and a cover member 8.
[0032] The outer wall of the housing 1 is fixedly connected with a heat dissipation fin 10. The housing 1 is provided with an installation cavity 11 and a placement cavity 12. The installation cavity 11 is provided above the placement cavity 12. The placement cavity 12 is connected to the installation cavity 11. The two ends of the housing 1 are provided with a first installation port 13 and a second installation port 14 respectively. The other two ends of the housing 1 are provided with a first placement port 15 and a second placement port 16 respectively. The first installation port 13 and the second installation port 14 are connected to the two ends of the installation cavity 11 respectively. The first installation port 13 and the second installation port 14 are coaxially arranged. The first placement port 15 and the second placement port 16 are connected to the two ends of the placement cavity 12 respectively. The first placement port 15 and the second placement port 16 are coaxially arranged. The axis of the first installation port 13 is perpendicular to the axis of the first placement port 15.
[0033] Reference Figure 1 and Figure 2The two ends of the worm 2 are coaxially fixedly connected with the first rotating column 21 and the second rotating column 22, respectively. The first rotating column 21 is coaxially rotatably connected to the inner wall of the first installation opening 13, and the second rotating column 22 is coaxially rotatably connected to the inner wall of the second installation opening 14. The two ends of the worm wheel 3 are coaxially rotatably connected to the inner wall of the first placement opening 15 and the inner wall of the second placement opening 16, respectively, and the upper end of the worm wheel 3 is engaged with the worm 2. The motor housing of the driving motor 4 is fixedly connected to the outer wall of the housing 1, and the motor shaft of the driving motor 4 is coaxially fixedly connected to the second rotating column 22.
[0034] Reference Figure 1 and Figure 3 The sealing member 5 includes a first sealing gasket 51 , a second sealing ring 52 , a third sealing ring 53 , a fourth sealing ring 54 , an oil plug 55 and a sealing cover 56 .
[0035] Reference Figure 2 The first sealing gasket 51 is arranged on the side of the first rotating column 21 away from the second rotating column 22, the first sealing gasket 51 is coaxially fixedly connected to the inner wall of the first mounting port 13, the second sealing ring 52 is sleeved on the outer wall of the second rotating column 22, and the second sealing ring 52 is coaxially fixedly connected to the inner wall of the second mounting port 14.
[0036] Reference Figure 1 and Figure 3 The third sealing ring 53 is sleeved on the outer wall of one end of the worm gear 3, and the third sealing ring 53 is coaxially fixedly connected to the inner wall of the first placement port 15. The fourth sealing ring 54 is sleeved on the outer wall of the other end of the worm gear 3, and the fourth sealing ring 54 is coaxially fixedly connected to the inner wall of the second placement port 16.
[0037] Reference Figure 1 and Figure 2 An oil inlet 17 is provided at the upper end of the shell 1, and the oil inlet 17 is connected to the installation cavity 11. The diameter of the oil inlet 17 increases as it moves away from the installation cavity 11. The oil plug 55 abuts against the inner wall of the oil inlet 17. The oil plug 55 is used to block the oil inlet 17. The diameter of the oil plug 55 increases as it moves away from the installation cavity 11. An oil outlet 18 is provided at the lower end of the shell 1. The oil outlet 18 is connected to the placement cavity 12. A sealing cover 56 is threadedly connected to the inner wall of the oil outlet 18. The sealing cover 56 is used to block the oil outlet 18.
[0038] Reference Figure 2 The shell 1 is provided with a cooling chamber 19, which is arranged on the outer periphery of the placement chamber 12. The upward inner wall of the installation chamber 11 is provided with a connecting port 111, which is arranged on a side of the placement chamber 12 close to the first installation port 13. The connecting port 111 connects the installation chamber 11 and the cooling chamber 19, and the lower end of the cooling chamber 19 is connected to the oil outlet 18.
[0039] Reference Figure 2 and Figure 4The oil change member 6 includes a first impeller 61, a fixing ring 62, a first bearing 63, a connecting rod 64, a fixing plate 65, and a memory alloy 66. The first impeller 61 is disposed between the placement chamber 12 and the communication port 111. The first impeller 61 includes a sliding ring 611 and a fan blade 612. The sliding ring 611 is coaxially rotatably connected to the outer wall of the first rotating column 21. The inner diameter of the sliding ring 611 is equal to the diameter of the first rotating column 21. The fan blade 612 is fixedly connected to the outer wall of the sliding ring 611.
[0040] The fixing ring 62 is arranged between the first impeller 61 and the connecting port 111, and the fixing ring 62 is coaxially fixedly connected to the outer wall of the first rotating column 21. A slot 621 is provided at one end of the fixing ring 62 facing the sliding ring 611, and there are multiple slots 621. The multiple slots 621 are evenly spaced around the axis of the fixing ring 62. An insert block 6111 is fixedly connected to one end of the sliding ring 611 facing the fixing ring 62, and the slot 621 is used for the insert block 6111 to be embedded, and the groove wall of the slot 621 is used for the insert block 6111 to abut.
[0041] Reference Figure 4 The first bearing 63 is arranged on the side of the fan blade 612 away from the fixed ring 62, the inner ring of the first bearing 63 is coaxially fixedly connected to the outer wall of the sliding ring 611, one end of the connecting rod 64 is fixedly connected to the outer ring of the first bearing 63, and the outer wall of the other end of the connecting rod 64 is fixedly connected with a dovetail block 641, and the downward inner wall of the installation cavity 11 is provided with a dovetail groove 112, and the dovetail block 641 is slidably embedded in the dovetail groove 112, the length direction of the dovetail groove 112 is parallel to the axis of the worm 2, and the sliding direction of the connecting rod 64 is parallel to the axis of the worm 2.
[0042] The fixing plate 65 is arranged on the side of the connecting rod 64 away from the first bearing 63. The fixing plate 65 is fixedly connected to the inner wall of the installation cavity 11. One end of the memory alloy 66 is fixedly connected to the fixing plate 65, and the other end of the memory alloy 66 is fixedly connected to the connecting rod 64. When the temperature of the oil near the memory alloy 66 rises to the deformation temperature, the memory alloy 66 deforms and elongates so that the plug 6111 is embedded in the slot 621. When the temperature of the oil near the memory alloy 66 drops to the temperature for restoring the deformation, the memory alloy 66 restores the deformation so that the first impeller 61 is away from the fixing ring 62.
[0043] Reference Figure 4 and Figure 5The auxiliary component 7 includes a second impeller 71, a second bearing 72, a connecting ring 73, a partition 74 and a pull rod 75. The second impeller 71 is coaxially connected to the second rotating column 22 for rotation. The inner ring of the second bearing 72 is coaxially fixedly connected to one end of the second impeller 71 facing the first impeller 61. The connecting ring 73 is arranged on the side of the second bearing 72 away from the second impeller 71. The connecting ring 73 is coaxially fixedly connected to the second rotating column 22. An embedding groove 731 is provided at one end of the connecting ring 73 facing the second bearing 72. The embedding groove 731 is arranged as an annular groove. The partition 74 is fixedly connected to the groove wall of the embedding groove 731. An embedding block 721 is coaxially fixedly connected to one end of the inner ring of the second bearing 72 facing the connecting ring 73. The embedding groove 731 is used for embedding the embedding block 721. The embedding block 721 is used to abut the partition 74. One end of the pull rod 75 is fixedly connected to the connecting rod 64, and the other end of the pull rod 75 is fixedly connected to the outer ring of the second bearing 72.
[0044] Reference Figure 2 An oil guide groove 121 is provided on the inner wall of the placement chamber 12 facing the first impeller 61 . The oil guide groove 121 extends upward, and the second impeller 71 is disposed above the oil guide groove 121 .
[0045] The covering member 8 includes a covering plate 81 and a pushing rod 82. The covering plate 81 is slidably connected to the upward inner wall of the mounting cavity 11. The covering plate 81 is used to cover the connecting port 111. One end of the pushing rod 82 is fixedly connected to the covering plate 81, and the other end of the pushing rod 82 is fixedly connected to the outer ring of the first bearing 63.
[0046] The implementation principle of a steady-state worm gear 3 reducer in the embodiment of the present application is as follows: the drive motor 4 drives the worm 2 to rotate, and the worm 2 drives the worm wheel 3 to rotate. When the memory alloy 66 detects that the oil temperature in the installation cavity 11 is too high, the memory alloy 66 deforms and stretches, pushing the connecting rod 64 to move, so that the insert block 721 is inserted into the insert groove 731, and the insert block 6111 is inserted into the slot 621. The first impeller 61 rotates with the fixed ring 62, and the second impeller 71 rotates with the connecting ring 73. The covering plate 81 moves to open the connecting port 111, so that the oil in the installation cavity 11 enters the cooling cavity 19, and the oil in the cooling cavity 19 enters the placement cavity 12. When the memory alloy 66 detects that the oil temperature in the installation cavity 11 is reduced to the temperature at which the memory alloy 66 recovers its deformation, the memory alloy 66 recovers its deformation, the connecting rod 64 is reset, the first impeller 61 moves away from the fixed ring 62, the second impeller 71 moves away from the connecting ring 73, and the covering plate 81 covers the connecting port 111 to reduce heat exchange.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A steady-state worm gear reducer, characterized in that: The invention comprises a housing (1), a worm (2), a worm wheel (3) and an oil change member (6); the housing (1) is provided with a mounting chamber (11) and a placement chamber (12); the mounting chamber (11) is arranged above the placement chamber (12); the placement chamber (12) is connected to the mounting chamber (11); the worm (2) is connected to the inner wall of the mounting chamber (11) by rotating around its own axis; the worm wheel (3) is connected to the inner wall of the placement chamber (12) by rotating around its own axis; the worm wheel (3) is meshed with the worm (2); the housing (1) is provided with a cooling chamber (19); the cooling chamber (19) is arranged on the outer periphery of the placement chamber (12); the upper end of the cooling chamber (19) is connected to the mounting chamber (11); the lower end of the cooling chamber (19) is connected to the placement chamber (12); the oil change member (6) is connected to the worm (2); the oil change member (6) is used to change the oil in the mounting chamber (11) into the cooling chamber (19).
2. A steady-state worm gear reducer according to claim 1, characterized in that: The oil changing component (6) comprises a first impeller (61); an upward inner wall of the installation cavity (11) is provided with a communication port (111); the communication port (111) is connected to the installation cavity (11) and the cooling cavity (19); the first impeller (61) is detachably connected to the outer wall of the worm (2); the first impeller (61) and the worm (2) are coaxially arranged; the first impeller (61) is arranged between the placement cavity (12) and the communication port (111).
3. A steady-state worm gear reducer according to claim 2, characterized in that: The oil change component (6) further comprises a fixed ring (62); the first impeller (61) comprises a sliding ring (611) and a fan blade (612); the sliding ring (611) is coaxially rotatably connected to the outer wall of the worm (2); the fan blade (612) is fixedly connected to the outer wall of the sliding ring (611); the fixed ring (62) is arranged between the first impeller (61) and the connecting port (111); the fixed ring (62) is coaxially fixedly connected to the outer wall of the worm (2); a slot (621) is provided at one end of the fixed ring (62) facing the sliding ring (611); an insert block (6111) is fixedly connected to one end of the sliding ring (611) facing the fixed ring (62); the slot (621) is used for the insert block (6111) to be inserted.
4. A steady-state worm gear reducer according to claim 3, characterized in that: A plurality of the slots (621) are provided, and the plurality of slots (621) are evenly spaced around the axis of the fixing ring (62), and the insert block (6111) abuts against the slot wall of the slot (621).
5. A steady-state worm gear reducer according to claim 3, characterized in that: The oil change component (6) further comprises a first bearing (63) and a connecting rod (64); the first bearing (63) is arranged on a side of the fan blade (612) away from the fixed ring (62); the inner ring of the first bearing (63) is coaxially fixedly connected to the outer wall of the sliding ring (611); one end of the connecting rod (64) is fixedly connected to the outer ring of the first bearing (63); the other end of the connecting rod (64) is slidably connected to the inner wall of the mounting cavity (11); and the sliding direction of the connecting rod (64) is parallel to the axis of the worm (2).
6. A steady-state worm gear reducer according to claim 5, characterized in that: The oil change component (6) further comprises a fixing plate (65) and a memory alloy (66); the fixing plate (65) is fixedly connected to the inner wall of the mounting cavity (11); one end of the memory alloy (66) is fixedly connected to the fixing plate (65); and the other end of the memory alloy (66) is fixedly connected to the connecting rod (64); when the temperature of the oil near the memory alloy (66) rises to a deformation temperature, the memory alloy (66) deforms so that the plug (6111) is embedded in the slot (621); and when the temperature of the oil near the memory alloy (66) drops to a temperature for restoring the deformation, the memory alloy (66) restores the deformation so that the first impeller (61) moves away from the fixing ring (62).
7. A steady-state worm gear reducer according to claim 6, characterized in that: The auxiliary component (7) further comprises a second impeller (71), a second bearing (72), a connecting ring (73) and a pull rod (75); the auxiliary component (7) is arranged on a side of the worm wheel (3) away from the first impeller (61); the second impeller (71) is coaxially rotatably connected to the worm (2); the inner ring of the second bearing (72) is coaxially fixedly connected to an end of the second impeller (71) facing the first impeller (61); the connecting ring (73) is arranged on a side of the second bearing (72) away from the second impeller (71); 1), the connecting ring (73) is coaxially fixedly connected to the worm (2), one end of the connecting ring (73) facing the second bearing (72) is provided with an embedding groove (731), the inner ring of the second bearing (72) is coaxially fixedly connected to an embedding block (721) at one end facing the connecting ring (73), the embedding groove (731) is used for embedding the embedding block (721), one end of the pull rod (75) is fixedly connected to the connecting rod (64), and the other end of the pull rod (75) is fixedly connected to the outer ring of the second bearing (72).
8. A steady-state worm gear reducer according to claim 5, characterized in that: The invention also comprises a covering member (8), wherein the covering member (8) comprises a covering plate (81) and a pushing rod (82), wherein the covering plate (81) is slidably connected to the inner wall of the mounting cavity (11), the covering plate (81) is used to cover the connecting port (111), one end of the pushing rod (82) is fixedly connected to the covering plate (81), and the other end of the pushing rod (82) is fixedly connected to the outer ring of the first bearing (63).
9. A steady-state worm gear reducer according to claim 1, characterized in that: The upper end of the shell (1) is provided with an oil inlet (17), the oil inlet (17) is connected to the installation cavity (11), the lower end of the shell (1) is provided with an oil outlet (18), the oil outlet (18) is connected to the placement cavity (12), and the lower end of the cooling cavity (19) is connected to the oil outlet (18).