Shock absorption structure of worm and gear speed reducer
By introducing vibration damping components into the worm gear reducer, the vibration is absorbed and weakened by magnetic adsorption and the friction of the flexible rubber ring, which solves the problems of component wear and noise caused by mechanical vibration and achieves better vibration damping effect.
Patent Information
- Application Number
- CN202520742705.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-18
AI Technical Summary
When worm gear reducers are in operation, mechanical vibration is generated due to gear meshing and transmission imbalance, which leads to accelerated wear of parts and noise pollution. Conventional rubber products also experience a decrease in vibration damping effect after long-term use.
The vibration damping components include pressure blocks, magnetic rods, guide cylinders, and return springs. They utilize magnetic attraction and the friction of flexible rubber rings to reduce elastic potential energy and absorb and weaken vibrations.
It significantly improves vibration damping, extends equipment lifespan, and reduces noise pollution.
Smart Images
Figure CN223814329U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the shock absorber technical field, especially relates to a shock absorbing structure of worm gear reducer. BACKGROUND
[0002] The worm gear reducer is a kind of mechanical transmission device, mainly used to reduce speed and increase torque, it is composed of worm (similar to threaded shaft) and the worm gear meshing with it.When power is input to the worm, the worm gear is rotated by the helical tooth, so as to realize the conversion of speed.The worm gear reducer will produce mechanical vibration of different degrees when working due to gear meshing, transmission imbalance and other factors, and continuous vibration will cause mutual impact or friction between parts, thereby accelerating the wear of part surface, shortening the service life of equipment, and large vibration is often accompanied by loud noise, which not only affects the working environment of operator, and the conventional solution is to use rubber products such as rubber washer to absorb vibration energy, prevent these vibrations from spreading to other components or the whole system, but rubber products are prone to aging after long-term use, resulting in the decline of damping effect, therefore a new structure is proposed to solve the above problems. SUMMARY
[0003] In view of the deficiencies in the prior art, the utility model aims at providing a shock absorbing structure of worm gear reducer to solve the problems in the background art.
[0004] The utility model discloses the following technical scheme realizes: a shock absorbing structure of worm gear reducer, include: damping assembly, the damping assembly is installed at the lower surface four corners in the shock absorber box main part, the damping assembly includes a pressure block for driving magnetic force stick up and down movement;
[0005] The pressure block top is fixed with the damping plate bottom above it through the pressing plate, the fixed cylinder for placing reset spring two is installed below the pressure block, the guide cylinder for guiding magnetic force stick is fixed on the inner side of reset spring two, and the magnetic ring is fixed on the inner side lower part of guide cylinder.
[0006] As a preferred embodiment, the shock absorber box main part is provided with a damping plate inside, the worm gear reducer main part is installed on the top of the damping plate, and the shock absorber box main part is fixed with the external mounting frame through bolts.
[0007] As a preferred embodiment, the shock absorber box main part is a concave structure, guide sleeves are arranged at the four corners of the inner side upper surface of the shock absorber box main part, and a guide column is arranged at each of the four corners of the top of the damping plate.
[0008] As a preferred implementation, a reset spring one is arranged above the inside of the guide sleeve, a flexible rubber ring is glued to the inner wall above the inside of the guide sleeve, the reset spring one is inside the flexible rubber ring, and the top of the guide column is fixed with the bottom of the reset spring one.
[0009] As a preferred implementation, the radius length and height of the guide column match the radius length and depth of the inside of the guide sleeve, the top of the guide column is fixed with the bottom of the reset spring one, and the height of the reset spring one is greater than the height of the flexible rubber ring. The cooperation of the guide column and the guide sleeve can weaken the elastic potential energy of the reset spring one by the intermolecular friction of the flexible rubber ring, so as to achieve the effect of vibration reduction. On the other hand, the guide column can guide the vibration reduction plate to vibrate only in the vertical direction, so that the vibration transmission is more complete.
[0010] As a preferred implementation, the vibration reduction assembly includes a pressing block and a fixing cylinder, the pressing block and a pressing plate at the top thereof are an integral structure, the radius length of the pressing plate is greater than the radius length of the fixing cylinder, and the bottom of the fixing cylinder is provided with a bottom plate.
[0011] As a preferred implementation, a magnetic rod is arranged below the pressing block, and the radius length and thickness of the pressing block match the radius length and depth of the inside of the fixing cylinder.
[0012] As a preferred implementation, a guide cylinder is arranged at the center of the lower surface of the inside of the fixing cylinder, a reset spring two is arranged outside the guide cylinder, and the height of the reset spring two is greater than the height of the guide cylinder and less than the height of the fixing cylinder.
[0013] As a preferred implementation, a magnetic ring is arranged at the lower surface of the inside of the guide cylinder, the magnetic ring and the magnetic rod are opposite poles and are attracted to each other, and the top of the reset spring two is fixed with the bottom of the pressing block away from the circular area of the center. When the pressing block moves downward to the limit, the bottom of the pressing block does not contact the top of the guide cylinder at this time, and the distance between the magnetic rod and the magnetic ring reaches the limit, that is, the magnetic attraction between the magnetic rod and the magnetic ring reaches the maximum. At this time, the reset spring two is compressed to the limit and starts to rebound. When the reset spring two rebounds to the limit, the pressing block does not separate from the inside of the fixing cylinder, and the magnetic rod does not separate from the inside of the guide cylinder. The distance between the magnetic rod and the magnetic ring reaches the maximum, but there is still magnetic attraction between the magnetic rod and the magnetic ring. Therefore, the magnetic attraction between the magnetic rod and the magnetic ring can be used to weaken the elastic potential energy of the reset spring two, so as to achieve the effect of vibration reduction.
[0014] The beneficial effects of the worm gear speed reducer shock absorption structure are as follows: 1. The damping assembly is provided with a pressing block, a magnetic rod, a guide cylinder and a reset spring 2. The damping plate transmits the vibration downward to the four damping assemblies. The pressing plate extrudes the pressing block downward and moves the pressing block downward along the inner side of the fixed cylinder and extrudes the reset spring 2. Meanwhile, the magnetic rod moves downward along the inner side of the guide cylinder. The magnetic rod and the magnetic ring below the inner side of the guide cylinder are attracted to each other. When the reset spring 2 rebounds, the magnetic attraction between the magnetic rod and the magnetic ring prevents the reset spring 2 from rebounding. Therefore, the rebound speed of the reset spring 2 is weakened by the magnetic force, and the elastic potential energy of the reset spring 2 is weakened. Thus, the vibration is absorbed and weakened. Finally, the shock absorption effect is significantly improved by the four damping assemblies.
[0015] 2. The guide sleeve and the guide column are provided. The flexible rubber ring is glued to the inner side of the guide sleeve. The inner side of the flexible rubber ring is provided with a reset spring 1. The guide column is above the inner side of the guide sleeve. The top of the guide column is fixed with the bottom of the reset spring 1. The guide column moves up and down along the inner side of the guide sleeve under the action of vibration, thereby repeatedly extruding the reset spring 1. When the guide column extrudes the reset spring 1 upward to make the reset spring 1 contract, the guide column continues to move upward and extrudes the bottom of the flexible rubber ring, thereby weakening the elastic potential energy of the reset spring 1 by the friction force between the rubber molecules. Thus, the vibration is absorbed and weakened. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application. Those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0017] Figure 1 It is a schematic diagram of the shock absorption structure of the worm gear speed reducer of the present application.
[0018] Figure 2 It is a position schematic diagram of the guide sleeve in the shock absorption structure of the worm gear speed reducer of the present application.
[0019] Figure 3 It is a position schematic diagram of the guide column and the damping assembly in the shock absorption structure of the worm gear speed reducer of the present application.
[0020] Figure 4 It is a connection schematic diagram of the guide column and the inner side of the guide sleeve in the shock absorption structure of the worm gear speed reducer of the present application.
[0021] Figure 5 It is a structure schematic diagram of the damping assembly in the shock absorption structure of the worm gear speed reducer of the present application.
[0022] In the figure, 100 - shock-absorbing box main body, 110 - guide sleeve, 111 - flexible rubber ring, 120 - reset spring one;
[0023] 200 - damping plate, 210 - guide column;
[0024] 300 - damping assembly, 310 - pressing block, 311 - pressing plate, 312 - magnetic force rod, 320 - fixing cylinder, 321 - reset spring two, 322 - guide cylinder, 323 - bottom plate. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some but not all of the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the utility model.
[0026] Please refer to Figures 1 to 5 : a shock-absorbing structure of a worm gear speed reducer, comprising: a damping assembly 300, the damping assembly 300 is installed at the lower surface of the shock-absorbing box main body 100, the damping assembly 300 comprises a pressing block 310 for driving the magnetic force rod 312 to move up and down;
[0027] The pressing block 310 top is fixed with the bottom of the damping plate 200 above through the pressing plate 311, the pressing block 310 below is installed with the fixing cylinder 320 for placing the reset spring two 321, the reset spring two 321 inside is fixed with the guide cylinder 322 for guiding the magnetic force rod 312, the guide cylinder 322 inside below is fixed with the magnetic force ring.
[0028] The shock-absorbing box main body 100 inside above is equipped with the damping plate 200, the damping plate 200 top is installed with the worm gear speed reducer main body, the shock-absorbing box main body 100 is fixed with the outside mounting frame through the bolt.
[0029] The shock-absorbing box main body 100 is concave structure, the shock-absorbing box main body 100 inside upper surface four corners are equipped with the guide sleeve 110, the damping plate 200 top four corners are respectively equipped with a guide column 210.
[0030] The guide sleeve 110 inside above is equipped with the reset spring one 120, the guide sleeve 110 inside above inner wall is glued with the flexible rubber ring 111, the reset spring one 120 is inside the flexible rubber ring 111, the guide column 210 top is fixed with the reset spring one 120 bottom.
[0031] The radius length and height of the guide column 210 match the radius length and depth of the inner side of the guide sleeve 110, the top of the guide column 210 is fixed with the bottom of the reset spring 120, the height of the reset spring 120 is greater than the height of the flexible rubber ring 111, the cooperation of the guide column 210 and the guide sleeve 110 can weaken the elastic potential energy of the reset spring 120 by using the intermolecular friction of the flexible rubber ring 111, so as to achieve the effect of vibration reduction, and on the other hand, the vibration reduction plate 200 can be guided to vibrate only in the vertical direction, so that the vibration transmission is more complete.
[0032] The vibration reduction assembly 300 comprises a pressing block 310 and a fixed cylinder 320, the pressing block 310 is an integral structure with a pressing plate 311 at the top thereof, the radius length of the pressing plate 311 is greater than the radius length of the fixed cylinder 320, and the bottom of the fixed cylinder 320 is provided with a bottom plate 323.
[0033] The pressing block 310 is provided below with a magnetic rod 312, and the radius length and thickness of the pressing block 310 match the radius length and depth of the inner side of the fixed cylinder 320.
[0034] The inner side of the fixed cylinder 320 is provided at the center of the lower surface thereof with a guide cylinder 322, the outer side of the guide cylinder 322 is provided with a reset spring 321, the height of the reset spring 321 is greater than the height of the guide cylinder 322 and less than the height of the fixed cylinder 320.
[0035] The inner side of the guide cylinder 322 is provided with a magnetic ring, the magnetic ring and the magnetic rod 312 are opposite in polarity and are attracted to each other, the top of the reset spring 321 is fixed with the bottom of the pressing block 310 away from the circular area of the center, when the pressing block 310 moves downward to the limit, at this time, the bottom of the pressing block 310 is not in contact with the top of the guide cylinder 322, and the distance between the magnetic rod 312 and the magnetic ring reaches the limit, that is, the magnetic attraction between the magnetic rod 312 and the magnetic ring reaches the maximum, at this time, the reset spring 321 is compressed to the limit and starts to rebound, when the reset spring 321 rebounds to the limit, the pressing block 310 will not be separated from the inner side of the fixed cylinder 320, and the magnetic rod 312 will not be separated from the inner side of the guide cylinder 322, and the distance between the magnetic rod 312 and the magnetic ring reaches the maximum, but there is still magnetic attraction between the magnetic rod 312 and the magnetic ring, so the magnetic attraction between the magnetic rod 312 and the magnetic ring can be used to weaken the elastic potential energy of the reset spring 321, so as to achieve the effect of vibration reduction.
[0036] Embodiment 1: please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5In actual use, the damping plate 200 is inside the shockproof box body 100, the top of the damping plate 200 is provided with a worm gear reducer body, the shockproof box body 100 is bolted to the lower inner side surface of the external mounting frame, the lower inner side surface of the shockproof box body 100 is provided with one damping assembly 300 at each corner, the damping assembly 300 comprises a pressing block 310, a magnetic rod 312, a fixing cylinder 320 and a guide cylinder 322, the top of the pressing block 310 is fixed to the top of the damping plate 200 through a pressing plate 311, the bottom center of the pressing block 310 is provided with the magnetic rod 312, the lower inner side surface center of the fixing cylinder 320 is provided with the guide cylinder 322, the outer side of the guide cylinder 322 is provided with a return spring 321, the height of the return spring 321 is greater than the height of the guide cylinder 322, and the top of the return spring 321 is fixed to the bottom of the pressing block 310 away from the center of the annular area, the lower inner side of the guide cylinder 322 is provided with a magnetic ring, the magnetic rod 312 is inside the guide cylinder 322, and the magnetic rod 312 and the magnetic ring are mutually adsorbed;
[0037] When the worm gear reducer body works, the vibration is transmitted to the four groups of damping assemblies 300 through the damping plate 200, the pressing plate 311 extrudes the pressing block 310 downward, the pressing block 310 moves downward along the inner side of the fixing cylinder 320 and extrudes the return spring 321, and at the same time, the magnetic rod 312 moves downward along the inner side of the guide cylinder 322, because the distance between the magnetic rod 312 and the magnetic ring is shortened, the magnetic attraction between the magnetic rod 312 and the magnetic ring is increased, at the same time, the magnetic rod 312 drives the pressing block 310 to extrude the return spring 321 downward due to the magnetic attraction, after the return spring is compressed to the extreme point, the bottom of the magnetic rod 312 does not contact the top of the magnetic ring, the return spring 321 begins to rebound, drives the pressing block 310 to move upward, and at the same time, drives the magnetic rod 312 to move upward away from the magnetic ring through the pressing block 310, in the rebounding process of the return spring, the magnetic rod 312 and the magnetic ring always keep the mutual attraction effect, therefore, under the action of the magnetic attraction and the vibration force, the return spring 321 is compressed and stored again, the magnetic rod 312 approaches the magnetic ring again, and the cycle is repeated, that is, the rebounding speed of the return spring 321 is reduced by the magnetic attraction, then the rebounding potential energy of the return spring 321 is reduced, and further the absorption and weakening effect of the vibration is significantly improved, and the shockproof effect is greatly improved.
[0038] Example 2: please refer to Figures 1 to 4The four guide sleeves 110 are provided at the four corners of the upper surface of the inner side of the shock-absorbing box, the flexible rubber ring 111 is glued on the upper inner wall of the inner side of the guide sleeve 110, the reset spring one 120 is arranged on the inner side of the flexible rubber ring 111, the top of the reset spring one 120 is fixed with the upper surface of the inner side of the guide sleeve 110, the height of the reset spring one 120 is greater than the height of the flexible rubber ring 111, the bottom of the damping plate 200 is fixed with the pressing plate 311 of the top of the four groups of damping assemblies 300, and the top of the damping plate 200 is provided with the four guide columns 210, the guide columns 210 are arranged in the inner side of the guide sleeve 110, the top of the guide column 210 is fixed with the bottom of the reset spring one 120, when the vibration occurs, the guide column 210 repeatedly moves up and down in the inner side of the guide sleeve 110, when the guide column 210 moves up, the top of the guide column 210 extrudes the reset spring one 120 upwards to make the reset spring one 120 contract and store power, the guide column 210 continues to move upwards and starts to extrude the flexible rubber ring 111 glued on the inner side of the guide sleeve 110, therefore, the elastic potential energy of the reset spring one 120 can be effectively weakened by using the friction force between the inner molecules of the flexible rubber ring 111, so that the auxiliary damping effect is achieved.
[0039] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A shock absorbing structure of a worm wheel and worm speed reducer, comprising: The damping assembly (300) is characterized in that: the damping assembly (300) is installed at the lower surface of the shockproof box body (100) at four corners, the damping assembly (300) comprises a pressing block (310) for driving the magnetic rod (312) to move up and down. The top of the pressing block (310) is fixed with the bottom of the damping plate (200) above the pressing plate (311), the lower portion of the pressing block (310) is provided with a fixing cylinder (320) for placing a reset spring (321), the inner side of the reset spring (321) is fixed with a guide cylinder (322) for guiding the magnetic rod (312), and the inner side of the guide cylinder (322) is fixed with a magnetic ring at the lower portion.
2. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 1, characterized in that: The damping plate (200) is arranged at the upper portion of the shockproof box body (100), the top of the damping plate (200) is provided with a worm gear reducer body, and the shockproof box body (100) is fixed with an external mounting frame through bolts.
3. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 2, characterized in that: The shockproof box body (100) is in a concave shape structure, the shockproof box body (100) is provided with a guide sleeve (110) at the upper surface of the inner side at four corners, and the damping plate (200) is provided with a guide column (210) at the top of four corners.
4. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 3, wherein: The upper portion of the guide sleeve (110) is provided with a reset spring (120), the upper inner wall of the guide sleeve (110) is glued with a flexible rubber ring (111), the reset spring (120) is located at the inner side of the flexible rubber ring (111), and the top of the guide column (210) is fixed with the bottom of the reset spring (120).
5. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 4, characterized in that: The radius length and height of the guide column (210) are matched with the radius length and depth of the inner side of the guide sleeve (110), the top of the guide column (210) is fixed with the bottom of the reset spring (120), and the height of the reset spring (120) is greater than the height of the flexible rubber ring (111).
6. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 1, wherein: The damping assembly (300) comprises a pressing block (310) and a fixing cylinder (320), the pressing block (310) and the pressing plate (311) at the top thereof are in an integrated structure, the radius length of the pressing plate (311) is greater than the radius length of the fixing cylinder (320), and the bottom of the fixing cylinder (320) is provided with a bottom plate (323).
7. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 6, characterized in that: The lower portion of the pressing block (310) is provided with a magnetic rod (312), and the radius length and thickness of the pressing block (310) are matched with the radius length and depth of the inner side of the fixing cylinder (320).
8. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 7, wherein: The inner side of the fixing cylinder (320) is provided with a guide cylinder (322) at the lower surface, the outer side of the guide cylinder (322) is provided with a reset spring (321), the height of the reset spring (321) is greater than the height of the guide cylinder (322) and less than the height of the fixing cylinder (320).
9. The shock absorbing structure of a worm wheel and worm speed reducer according to claim 8, characterized in that: The inner side of the guide cylinder (322) is provided with a magnetic ring at the lower surface, the magnetic ring and the magnetic rod (312) are opposite and are attracted to each other, and the top of the reset spring (321) is fixed with the bottom of the pressing block (310) away from the circular area of the center.