A heavy-duty self-adaptive worm and worm gear reducer with clearance compensation

Abstract

The present invention discloses a heavy-duty self-adaptive worm and worm gear reducer with gap compensation, which includes a housing, a base and a plurality of fastening bolts. The bottom of the housing is fixedly installed with the top of the base through the plurality of fastening bolts. A first jack is penetrated and opened at the top of one side of the housing, and a worm is inserted into the first jack. Driven by rotating the eccentric handle, the adjustment strip on the screw rod can slowly displace along the slide rail towards the axis direction of the worm. The adjustment strip will drive the worm to displace horizontally through the connecting rod at the bottom, so that the tooth surface of the worm is in full contact with the top tooth surface of the worm gear to eliminate the gap. When the externally connected motor of the worm rotates, since the sleeve is movably sleeved in the card slot, the friction force between the sleeve and the outer wall of the worm will be greatly reduced, so that it can operate normally for a long time. The sleeve only exerts a pushing effect on the whole worm through the side wall of the card slot, and can also keep the worm always vertically installed with the worm gear, avoiding the problem of tooth breakage caused by the side deviation of the worm.

Description

Technical Field

[0001] The present invention relates to the technical field of speed reducers, and specifically to a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation. Background Art

[0002] Worm and worm gear speed reducers are usually used in industries, heavy equipment and consumer products. Such speed reducers can provide a very high reduction ratio and usually can achieve self-locking. The widely used worm and worm gear speed reducer is an important component widely used in mechanical transmissions. When the worm and worm gear are meshed, due to inevitable errors such as pitch and tooth profile, clearances are formed, resulting in meshing impacts during operation, which not only reduces the service life of the speed reducer, but also reduces the transmission accuracy and generates relatively large noise when the speed reducer is operating.

[0003] For example, in the Chinese patent number: CN208871009U, "a pre-pressure compensation clearance elimination speed reducer", it includes a body. A heat dissipation hole is opened at the top of the body, and the number of heat dissipation holes is two. The two heat dissipation holes are symmetric about the center of the body. A side box is fixedly installed at the top on the left side of the body. A cross bar is fixedly installed at the top of the inner cavity of the body. A driven rod located below the cross bar is movably sleeved inside the body. The right end of the driven rod penetrates through the body and extends to the outside of the right side of the body.

[0004] In the prior art, a push block installed outside the worm is used to push the turbine forward by the displacement of the push block, so as to be tightly meshed with the tooth surface of the worm gear. However, in the prior art, the push block is squeezed against the surface of the continuously rotating worm during operation. After long-term wear of its contact surface, it can no longer keep in contact with the worm, and even the tooth surface of the worm is damaged. After the contact surface is worn, a clearance is generated between the push block and the tooth surface of the worm, and the worm can no longer be limited, resulting in a clearance between the worm and the worm gear again. Moreover, when using a single push block to push the worm, when the tooth surface of the worm applied to heavy-duty work is laterally blocked, it is extremely easy to cause the worm to deviate laterally. When the worm that cannot maintain a horizontal position rotates, it will cause tooth breakage and damage to the tooth surface of the worm gear. Summary of the Invention

[0005] The purpose of the present invention is to provide a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation to solve the problems in the above background art that the push block is squeezed against the surface of the continuously rotating worm during operation. After long-term wear of its contact surface, it can no longer keep in contact with the worm, and even the tooth surface of the worm is damaged. After the contact surface is worn, a clearance is generated between the push block and the tooth surface of the worm, and the worm can no longer be limited, resulting in a clearance between the worm and the worm gear again. Moreover, when using a single push block to push the worm, when the tooth surface of the worm applied to heavy-duty work is laterally blocked, it is extremely easy to cause the worm to deviate laterally. When the worm that cannot maintain a horizontal position rotates, it will cause tooth breakage and damage to the tooth surface of the worm gear.

[0006] To achieve the above object, the present invention provides the following technical solution: A heavy-duty self-adaptive worm and worm gear reducer with gap compensation, including a housing, a base and a plurality of fastening bolts. The bottom of the housing is fixedly installed with the top of the base through a plurality of fastening bolts. A first insertion hole is penetrated and opened at the top of one side of the housing, and a worm is inserted into the first insertion hole. A second insertion hole is penetrated and opened on the base, and an output shaft is inserted into the second insertion hole. A worm gear is clamped on the output shaft, and the top of the worm gear meshes with the bottom of the worm. A gap adjustment mechanism is clamped on the top of the worm. Bevel gear one and bevel gear two are oppositely installed on the output shaft, and a limiting component is meshed between bevel gear one and bevel gear two; A gap adjustment mechanism is clamped on the top of the worm. Bevel gear one and bevel gear two are oppositely installed on the output shaft, and a limiting component is meshed between bevel gear one and bevel gear two. Gap adjustment mechanisms are sleeved on the top of both ends of the worm. Driven by the gap adjustment mechanism, the worm can always maintain a vertical state with the worm gear and perform axial displacement, so that the stressed tooth surface of the worm can always be in close contact with the stressed tooth surface of the worm gear, avoiding the occurrence of gaps, so as to achieve the function of gap compensation.

[0007] The gap adjustment mechanism includes a slide rail and two sleeves. The bottom of the slide rail is fixedly installed with the top of the housing, and an adjustment bar is slidably installed on the top of the slide rail. Connecting rods are fixedly installed at the bottoms of both ends of the adjustment bar. Card slots are opened at both ends of the worm. The two sleeves are respectively movably sleeved in the two card slots. Connecting blocks are integrally formed at the tops of the two sleeves, and the connecting blocks are fixedly connected to the connecting rods through double-headed bolts. A pushing frame is fixedly installed at the top of the adjustment bar, and a lead screw is threadedly connected to the pushing frame. A first bevel gear is clamped at one end of the lead screw, and the first bevel gear meshes with a second bevel gear. A rotating shaft is inserted at the center of the second bevel gear, and an eccentric handle is fixedly installed at one end of the rotating shaft. The two ends of the lead screw are respectively movably sleeved with support frames, and the bottoms of the support frames are fixedly installed on the housing. By rotating the eccentric handle, the rotating shaft and the second bevel gear at one end thereof can be driven to rotate, so that the first bevel gear meshing with the second bevel gear drives the lead screw to rotate, so that the adjustment bar on the lead screw can slowly displace along the slide rail towards the axis direction of the worm. When the adjustment bar slides, the worm will be driven to horizontally displace through the connecting rod fixed to the connecting block at the bottom, so that the tooth surface of the worm is in full contact with the top tooth surface of the worm gear to eliminate the gap. And when the motor externally connected to the worm rotates, since the sleeve is movably sleeved in the card slot, the friction with the outer wall of the worm will be greatly reduced, so that it can operate normally for a long time. The sleeve only realizes the pushing effect on the whole worm through the side wall of the card slot.

[0008] Preferably, the limiting component includes a transfer sleeve. Support rods are welded on both sides of the transfer sleeve, and third bevel gears are movably sleeved on the outer sides of the two support rods. The center of the transfer sleeve is fixedly clamped with the output shaft.

[0009] Preferably, the two sides between the first bevel gear and the second bevel gear are respectively meshed with the outer sides of two third bevel gears, and limiting grooves are formed on both sides of the base.

[0010] Preferably, an extrusion block is slidably installed inside the limiting groove, and one side of the extrusion block is movably connected to the third bevel gear. An extrusion spring is installed inside the extrusion block, and one end of the extrusion spring is fixedly connected to an insertion tube. The insertion tube is fixedly inserted into the base. To maintain the stability of the output shaft rotation and improve the output accuracy, therefore, it is necessary to limit the connection between the two third bevel gears and the first bevel gear and the second bevel gear to prevent gaps from appearing between them. The extrusion block can be pushed by the extrusion spring, so that the third bevel gear installed on one side of the extrusion block can be closely attached to the first bevel gear and the second bevel gear.

[0011] Preferably, a first magnetic block is fixedly clamped on one side of the extrusion block, and a second magnetic block is fixedly installed inside the insertion tube, and the second magnetic block and the first magnetic block are installed with the same poles facing each other. To prevent the elastic attenuation of the extrusion spring after long-term use, two mutually repulsive strong magnets and the first magnetic block and the second magnetic block are provided, so that the first magnetic block can always push the extrusion block.

[0012] Preferably, a limiting kit is sleeved on the rotating shaft, and the bottom of the limiting kit is fixedly installed on the top of the machine shell.

[0013] Preferably, a marking block is fixedly installed on the top of the slide rail, and the top of the marking block is movably inserted into the adjustment bar, and scales are provided on the adjustment bar.

[0014] Preferably, bearings are sleeved on both ends of the output shaft, and the bearings are clamped with the second jacks. Bearings are sleeved on both ends of the worm, and the bearings are clamped with the first jacks.

[0015] Preferably, an end cover is fixedly installed on the outside of the first jack through bolts, and the worm is movably inserted into the end cover. An output wheel is fixedly clamped at one end of the output shaft.

[0016] Preferably, an observation window is fixedly installed on the top of the machine shell, and an oil delivery hole is provided at the bottom of the machine shell.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In the present invention, driven by rotating the eccentric handle, the adjustment bar on the lead screw can displace slowly along the slide rail towards the axis direction of the worm. The adjustment bar will drive the worm to displace horizontally through the connecting rod at the bottom, so that the tooth surface of the worm is in full contact with the top tooth surface of the worm gear to eliminate the gap. When the externally connected motor of the worm rotates, since the sleeve is movably sleeved in the card slot, the friction between the sleeve and the outer wall of the worm will be greatly reduced, so that it can operate normally for a long time. The sleeve only exerts a pushing effect on the whole worm through the side wall of the card slot, and can also keep the worm always vertically installed with the worm gear, avoiding the problem of gear jamming caused by the side deviation of the worm.

[0019] 2. In the present invention, in order to maintain the stability of the rotation of the output shaft and improve the output accuracy, the connection between the two bevel gears III and bevel gears I and II is limited to avoid gaps between the limiting components. Not only is the extrusion block pushed by the extrusion spring, but also in order to avoid the elastic weakening of the extrusion spring after long-term use, two mutually repulsive strong magnets and magnetic blocks I and II are provided, so that the magnetic block I can always push the extrusion block, so that the bevel gear III installed on one side of the extrusion block can be in close contact with the bevel gears I and II.

[0020] 3. In the present invention, when the adjustment bar pushes the worm, the displacement data can be intuitively obtained through the scale corresponding to the marking block, so as to know the wear condition of the tooth surface of the worm and determine whether a new worm needs to be replaced, which is convenient for the maintenance work of this speed reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation according to the present invention Figure 1 ;

[0022] Figure 2 is a schematic structural diagram of a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation according to the present invention Figure 2 ;

[0023] Figure 3 is an internal structural schematic diagram of a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation according to the present invention;

[0024] Figure 4 is a side view structural schematic diagram of a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation according to the present invention;

[0025] Figure 5 is a top view structural schematic diagram of a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation according to the present invention;

[0026] Figure 6 is a structural schematic diagram of the clearance adjustment mechanism of a heavy-duty adaptive worm and worm gear speed reducer with clearance compensation according to the present invention;

[0027] Figure 7 This is the installation schematic diagram of the gap adjustment mechanism of a heavy-duty adaptive worm and worm gear reducer with gap compensation according to the present invention;

[0028] Figure 8 This is the side view of the gap adjustment mechanism of a heavy-duty adaptive worm and worm gear reducer with gap compensation according to the present invention;

[0029] Figure 9 This is the structural schematic diagram of the limit component of a heavy-duty adaptive worm and worm gear reducer with gap compensation according to the present invention;

[0030] Figure 10 is Figure 9 the enlarged schematic diagram at position A in

[0031] In the figure:

[0032] 1. Housing; 10. Observation window; 11. Jack one; 12. Jack two; 2. Gap adjustment mechanism; 20. Slide rail; 21. Adjustment bar; 210. Marking block; 211. Scale; 22. Connecting rod; 23. Sleeve; 24. Connecting block; 25. Double-headed bolt; 26. Lead screw; 260. Bevel gear one; 261. Bevel gear two; 262. Rotating shaft; 263. Limit sleeve; 264. Eccentric handle; 27. Support frame; 28. Pushing frame; 3. Worm; 30. Bearing two; 301. Card slot; 31. End cover; 4. Base; 40. Limit groove; 401. Extrusion block; 402. Insertion tube; 403. Magnet one; 404. Extrusion spring; 405. Magnet two; 41. Oil delivery hole; 42. Fastening bolt; 5. Output shaft; 51. Bearing one; 50. Output wheel; 6. Worm gear; 7. Limit component; 70. Adapter sleeve; 71. Support rod; 72. Bevel gear three; 8. Bevel gear one; 80. Bevel gear two. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Refer to Figures 1-8Shown: A heavy-duty self-adaptive worm and worm gear reducer with clearance compensation, including a housing 1, a base 4, and a plurality of fastening bolts 42. The bottom of the housing 1 is fixedly installed on the top of the base 4 through the plurality of fastening bolts 42. A first jack 11 is penetrated and opened at the top of one side of the housing 1, and a worm 3 is inserted into the first jack 11. A second jack 12 is penetrated and opened on the base 4, and an output shaft 5 is inserted into the second jack 12. A worm gear 6 is clamped on the output shaft 5, and the top of the worm gear 6 meshes with the bottom of the worm 3. An adjustment mechanism 2 is clamped on the top of the worm 3. Bevel gears 8 and 80 are oppositely installed on the output shaft 5, and a limiting component 7 is meshed between the bevel gears 8 and 80. The adjustment mechanism 2 is sleeved on the top of both ends of the worm 3. Driven by the adjustment mechanism 2, the worm 3 can always maintain a vertical state with the worm gear 6 and perform axial displacement, so that the stressed tooth surface of the worm 3 can always be in close contact with the stressed tooth surface of the worm gear 6, avoiding the occurrence of gaps, so as to achieve the function of clearance compensation.

[0035] The adjustment mechanism 2 includes a slide rail 20 and two sleeves 23. The bottom of the slide rail 20 is fixedly installed on the top of the housing 1, and an adjustment bar 21 is slidably installed on the top of the slide rail 20. Connecting rods 22 are fixedly installed at the bottoms of both ends of the adjustment bar 21. Slots 301 are opened at both ends of the worm 3, and the two sleeves 23 are respectively movably sleeved in the two slots 301. Connecting blocks 24 are integrally formed at the tops of the two sleeves 23, and the connecting blocks 24 are fixedly connected to the connecting rods 22 through double-headed bolts 25. A push frame 28 is fixedly installed on the top of the adjustment bar 21, and a lead screw 26 is threadedly connected to the push frame 28. A first bevel gear 260 is clamped at one end of the lead screw 26, and the first bevel gear 260 meshes with a second bevel gear 261. A rotating shaft 262 is inserted at the axis of the second bevel gear 261, and an eccentric handle 264 is fixedly installed at one end of the rotating shaft 262. Support frames 27 are movably sleeved at both ends of the lead screw 26, and the bottoms of the support frames 27 are fixedly installed on the housing 1. By rotating the eccentric handle 264, the rotating shaft 262 and the second bevel gear 261 at one end thereof can be driven to rotate, so that the first bevel gear 260 meshing with the second bevel gear 261 drives the lead screw 26 to rotate, so that the adjustment bar 21 on the lead screw 26 can slowly displace along the slide rail 20 towards the axis direction of the worm 3. When the adjustment bar 21 slides, the worm 3 will be driven to horizontally displace through the connecting rod 22 fixed to the connecting block 24 at the bottom, so that the tooth surface of the worm 3 is in full contact with the top tooth surface of the worm gear 6 to eliminate the gap. And when the motor externally connected to the worm 3 rotates, since the sleeve 23 is movably sleeved in the slot 301, the friction force between the sleeve 23 and the outer wall of the worm 3 will be greatly reduced, so that it can maintain normal operation for a long time. The sleeve 23 only exerts a pushing effect on the whole worm 3 through the side wall of the slot 301.

[0036] According to Figure 9As shown, the limiting component 7 includes a transfer sleeve 70. Rods 71 are welded to both sides of the transfer sleeve 70, and bevel gears III 72 are movably sleeved on the outer sides of the two rods 71. The center of the transfer sleeve 70 is fixedly clamped with the output shaft 5. The transfer sleeve 70 can rotate following the output shaft 5 and drive the two bevel gears III 73 installed on the outer side through the rods 71 to rotate with the output shaft 5 as the rotation axis.

[0037] According to Figure 3 , Figure 5 and Figure 9 As shown, the outer sides between both sides of the bevel gear I 8 and the bevel gear II 80 are respectively meshed with the outer sides of the two bevel gears III 72. Limiting grooves 40 are opened on both sides of the base 4. When the output shaft 5 rotates, it will drive the bevel gear I 8 and the bevel gear II 80 to rotate, and drive the two bevel gears III 73 on its outer side through the transfer sleeve 70 to always rotate between the bevel gear I 8 and the bevel gear II 80, so that the outer sides of the bevel gear I 8 and the bevel gear II 80 are supported and clamped when rotating, and the rotation of the output shaft 5 is more stable, thereby improving the output precision of the speed reducer.

[0038] According to Figure 5 and 10 As shown, a pressing block 401 is slidably installed inside the limiting groove 40, and one side of the pressing block 401 is movably connected to the bevel gear III 72. A compression spring 404 is installed inside the pressing block 401, and one end of the compression spring 404 is fixedly connected to an insertion tube 402, and the insertion tube 402 is fixedly inserted into the base 4; wear will also occur between the bevel gear I 8, the bevel gear II 80 and the two bevel gears III 72. To maintain the stability of the rotation of the output shaft 5 and improve the output precision, therefore, it is necessary to limit the connection between the two bevel gears III 72 and the bevel gear I 8 and the bevel gear II 80 to prevent gaps from appearing between them. The compression spring 404 can be used to push the pressing block 401, so that the bevel gear III 72 installed on one side of the pressing block 401 can be closely attached to the bevel gear I 8 and the bevel gear II 80.

[0039] According to Figure 10 As shown, a magnet I 403 is fixedly clamped on one side of the pressing block 401, and a magnet II 405 is fixedly installed inside the insertion tube 402, and the magnet II 405 and the magnet I 403 are installed with the same poles facing each other; to prevent the compression spring 404 from weakening in elasticity after long-term use, two repulsive strong magnets, the magnet I 403 and the magnet II 405 are provided, so that the magnet I 403 can always push the pressing block 401.

[0040] According to Figure 6As shown, a limiting kit 263 is sleeved on the rotating shaft 262, and the bottom of the limiting kit 263 is fixedly installed on the top of the housing 1, keeping the rotating shaft 262 always in a horizontal state to avoid misalignment between the first bevel gear 260 and the second bevel gear 261.

[0041] According to Figure 1 As shown, a marking block 210 is fixedly installed on the top of the slide rail 20, and the top of the marking block 210 is movably inserted into the adjusting bar 21. A scale 211 is provided on the adjusting bar 21. When the adjusting bar 21 pushes the worm 3, the displacement data can be intuitively obtained through the scale 211 corresponding to the marking block 210 to know the wear condition of the tooth surface of the worm 3 and determine whether a new worm 3 needs to be replaced.

[0042] According to Figure 1 As shown, bearings 51 are sleeved on both ends of the output shaft 5, and the bearings 51 are clamped with the second jack 12. Bearings 30 are sleeved on both ends of the worm 3, and the bearings 30 are clamped with the first jack 11. The bearings 51 and 30 are for reducing wear during operation.

[0043] According to Figure 1 、 Figure 2 and Figure 3 As shown, an end cover 31 is fixedly installed outside the first jack 11 through bolts, and the worm 3 is movably inserted into the end cover 31. An output wheel 50 is fixedly clamped at one end of the output shaft 5. The end cover 31 is used to limit both ends of the worm 3 so that it always remains in a horizontal state.

[0044] According to Figure 1 and Figure 2 As shown, an observation window 10 is fixedly installed on the top of the housing 1, and an oil injection hole 41 is provided at the bottom end of the housing 1. The internal operation condition of the speed reducer and the loss of each component can be directly observed through the observation window 10. The oil injection hole 41 is used for injecting lubricating oil.

[0045] Usage method and working principle of this device: Driven by the gap adjusting mechanism 2, the worm 3 of this speed reducer can always maintain a vertical state with the worm wheel 6 and perform displacement in the axial direction, so that the stressed tooth surface of the worm 3 can always be in close contact with the stressed tooth surface of the worm wheel 6 to avoid gaps, thereby achieving the function of gap compensation.

[0046] When eliminating the clearance, the eccentric handle 264 can be rotated to drive the rotating shaft 262 and the bevel gear two 261 at one end thereof to rotate, so that the bevel gear one 260 meshing with the bevel gear two 261 drives the lead screw 26 to rotate, thereby enabling the adjustment strip 21 on the lead screw 26 to slowly displace along the slide rail 20 towards the axis direction of the worm 3. When the adjustment strip 21 slides, the connecting rod 22 fixed to the connecting block 24 at the bottom will drive the worm 3 to displace horizontally, so that the tooth surface of the worm 3 is in full contact with the top tooth surface of the worm wheel 6 to eliminate the clearance. Moreover, when the externally connected motor of the worm 3 rotates, since the sleeve 23 is movably sleeved in the card slot 301, the friction between the sleeve 23 and the outer wall of the worm 3 will be greatly reduced, so that it can operate normally for a long time. The sleeve 23 only exerts a pushing effect on the whole worm 3 through the side wall of the card slot 301.

[0047] Meanwhile, in order to maintain the stability of the rotation of the output shaft 5 and improve the output accuracy, it is necessary to limit the connection between the two bevel gears three 72 and the bevel gear one 8 and the bevel gear two 80 to avoid the occurrence of clearance between them. The extrusion spring 404 can be used to push the extrusion block 401, so that the bevel gear three 72 installed on one side of the extrusion block 401 can be closely attached to the bevel gear one 8 and the bevel gear two 80. To prevent the elastic attenuation of the extrusion spring 404 after long-term use, two mutually repulsive strong magnets, the magnetic block one 403 and the magnetic block two 405 are provided, so that the magnetic block one 403 can always push the extrusion block 401.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An overloaded self-adaptive worm and worm gear reducer with gap compensation, comprising a housing, a base and a plurality of fastening bolts. The bottom of the housing is fixedly installed on the top of the base through the plurality of fastening bolts. A first jack is formed through the top of one side of the housing, and a worm is inserted into the first jack. A second jack is formed through the base, and an output shaft is inserted into the second jack. A worm gear is clamped on the output shaft, and the top of the worm gear meshes with the bottom of the worm. It is characterized in that: A clearance adjustment mechanism is clamped to the top of the worm. Bevel gear one and bevel gear two are oppositely installed on the output shaft, and a limiting component is engaged between bevel gear one and bevel gear two; The clearance adjustment mechanism includes a slide rail and two sleeves. The bottom of the slide rail is fixedly installed on the top of the machine shell, and an adjustment bar is slidably installed on the top of the slide rail. Connecting rods are fixedly installed at the bottoms of both ends of the adjustment bar. Card slots are opened at both ends of the worm. The two sleeves are respectively movably sleeved in the two card slots. Connecting blocks are integrally formed at the tops of the two sleeves, and the connecting blocks are fixedly connected to the connecting rods through double-headed bolts. A pushing frame is fixedly installed at the top of the adjustment bar, and a lead screw is threadedly connected to the pushing frame. A bevel gear one is clamped at one end of the lead screw, and bevel gear one is engaged with bevel gear two. A rotating shaft is inserted at the center of bevel gear two, and an eccentric handle is fixedly installed at one end of the rotating shaft. Support frames are movably sleeved at both ends of the lead screw, and the bottoms of the support frames are fixedly installed on the machine shell; The limiting component includes a transfer sleeve. Support rods are welded on both sides of the transfer sleeve, and bevel gear three is movably sleeved on the outer sides of the two support rods. The center of the transfer sleeve is fixedly clamped with the output shaft; The outer sides between bevel gear one and bevel gear two are respectively engaged with the outer sides of the two bevel gear threes. Limiting grooves are opened on both sides of the base; An extrusion block is slidably installed inside the limiting groove, and one side of the extrusion block is movably connected to bevel gear three. An extrusion spring is installed inside the extrusion block, and one end of the extrusion spring is fixedly connected to an insertion tube, and the insertion tube is fixedly inserted into the base.

2. The heavy-duty self-adaptive worm and worm gear speed reducer with clearance compensation according to claim 1, characterized in that: A magnet one is fixedly clamped on one side of the extrusion block, a magnet two is fixedly installed in the insertion tube, and magnet two and magnet one are installed with the same poles facing each other.

3. The heavy-duty self-adaptive worm and worm gear speed reducer with clearance compensation according to claim 1, characterized in that: A limiting kit is sleeved on the rotating shaft, and the bottom of the limiting kit is fixedly installed on the top of the machine shell.

4. A heavy-duty self-adaptive worm and worm gear reducer with clearance compensation according to claim 1, characterized in that: A marking block is fixedly installed on the top of the slide rail, and the top of the marking block is movably inserted into the adjustment bar, and scales are opened on the adjustment bar.

5. An overloaded self-adaptive worm and worm gear speed reducer with clearance compensation according to claim 1, characterized in that: Bearing one is sleeved at both ends of the output shaft, and bearing one is clamped with jack two. Bearing two is sleeved at both ends of the worm, and bearing two is clamped with jack one.

6. The heavy-duty self-adaptive worm and worm gear speed reducer with clearance compensation according to claim 1, characterized in that: An end cover is fixedly installed on the outside of jack one through bolts, and the worm is movably inserted into the end cover. An output wheel is fixedly clamped at one end of the output shaft.

7. An overload self-adaptive worm and worm gear reducer with clearance compensation according to claim 1, characterized in that: An observation window is fixedly installed on the top of the machine shell, and an oil delivery hole is provided at the bottom end of the machine shell.

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