CN214338567U

CN214338567U - Tractor tail transmission device for furrow opener

Info

Publication number: CN214338567U
Application number: CN202023124280.7U
Authority: CN
Inventors: 徐维杰; 徐佳锋; 汤文涛; 赵超
Original assignee: Zhejiang A&F University ZAFU
Current assignee: Zhejiang A&F University ZAFU
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-10-08
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a tractor afterbody transmission for furrow opener, its technical scheme main points are including transmission, still include hack mechanism, mechanism and mounting bracket bury, transmission is including first drive mechanism, second drive mechanism and third drive mechanism, first drive mechanism is including second bevel gear, first transmission shaft and second transmission shaft, second bevel gear cover is located on the output shaft of engine, a first transmission shaft pot head is equipped with third bevel gear, be provided with the bearing in the first transmission shaft, first transmission shaft is provided with fourth bevel gear, be provided with fifth bevel gear on the second transmission shaft, the utility model discloses a current furrow opener transmission loss is big, the problem that the energy conversion is low has been solved to mechanical structure's mode.

Description

Tractor tail transmission device for furrow opener

Technical Field

The utility model relates to agricultural machinery, more specifically say, it relates to a tractor afterbody transmission for furrow opener.

Background

The main working components of the seeder of the furrow opener. A seed ditch with a certain depth can be formed on a seedbed according to the agricultural technical requirements, seeds (fertilizers) are guided to fall, and wet soil is covered. The working quality of the furrow opener directly influences the sowing quality.

The seedbed is the environment for seed germination, rooting and emergence, so that the humidity of soil and the quality of soil have great influence on the germination of seeds. The firmness of the soil can affect the germination and rooting of the seeds by absorbing water in the soil. The soil is too soft and loose, which affects the moisture transportation of the seeds and the germination condition of the seeds. But too hard to help the growth of the root system of the seedling. In no-tillage land, the firmness of the soil is greatly increased, so that the development of seeds is facilitated, a furrow opener is required to loosen the soil, and the soil below and on two sides of the seeds is ensured to be loose. Moreover, from some literature, people rarely research the viscosity breaking pattern of the furrow opener to reduce the furrow opening resistance. The phenomena of the quality reduction of ditching, the increase of working resistance and the like can occur after the clay is arranged in the ditcher, the seeding quality is greatly imaged, and the crop yield is finally reduced. Therefore, viscosity and resistance reduction are the problems to be solved in the design of the furrow opener, and the power can be improved by increasing the power of an engine to overcome the problem.

Although in the traditional cultivation, after plowing and soil preparation, the furrow opener works in a loose field, the resistance can be greatly reduced. However, on no-tillage land, the earth surface is solid, and a large amount of straws are covered, so that the problems of difficult soil penetration, large resistance and the like of furrow openers on the market are caused, however, due to the structure of the tractor, the power source of the engine needs to be transmitted by a plurality of structures, so that energy loss is caused, a large amount of energy needs to be wasted, and the conversion rate is too low.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a tractor afterbody transmission for furrow opener of low energy loss.

In order to achieve the above purpose, the utility model provides a following technical scheme: a tractor tail transmission device for a furrow opener comprises a transmission device, a soil breaking mechanism, an earth penetrating mechanism and a mounting frame, wherein the transmission device, the soil breaking mechanism and the earth penetrating mechanism are fixed at the front end or the rear end of a walking device through the mounting frame, the transmission device is connected with an engine of the walking device and is used for driving the soil breaking mechanism and the earth penetrating mechanism to move, the soil breaking mechanism is positioned in front of the walking direction of the walking device, the soil breaking mechanism is used for cutting large soil blocks and green grass off, the earth penetrating mechanism is used for ditching, the transmission device comprises a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, the first transmission mechanism is connected with the engine of the walking device, the third transmission mechanism is connected with the soil breaking mechanism and the earth penetrating mechanism, the second transmission mechanism is in transmission connection with the first transmission mechanism and the second transmission mechanism respectively, first drive mechanism is including second bevel gear, first transmission shaft and second transmission shaft, second bevel gear overlaps and locates on the output shaft of engine, first transmission shaft pot head is equipped with the third bevel gear with second bevel gear engaged with, be provided with the bearing on the first transmission shaft, the bearing cooperatees with the mounting bracket, the one end that third bevel gear was kept away from to first transmission shaft is provided with fourth bevel gear, be provided with the fifth bevel gear with fourth bevel gear engaged with on the second transmission shaft, the second transmission shaft rotates with the mounting bracket to be connected, the second transmission shaft links to each other with second drive mechanism.

The utility model discloses further set up to: the second transmission mechanism comprises a first belt wheel, a second belt wheel and a transmission belt, the first belt wheel is sleeved on the second transmission shaft, the first belt wheel and the second belt wheel are transmitted through the transmission belt, and the second belt wheel is connected with the third transmission mechanism.

The utility model discloses further set up to: the third transmission mechanism comprises a third transmission shaft and a fourth transmission shaft, the second belt pulley is sleeved on the third transmission shaft, the third transmission shaft is rotatably connected with the mounting frame, the third transmission shaft penetrates through the soil-entering mechanism and is provided with a sixth bevel gear, the fourth transmission shaft is sleeved with a seventh bevel gear meshed with the sixth bevel gear, and the fourth transmission shaft penetrates out of the soil-entering mechanism and is connected with the soil-breaking mechanism.

The utility model discloses further set up to: the soil crushing mechanism is including casing, cutting edge, arbor, the casing links to each other with the mounting bracket, the casing below is provided with the opening, the arbor level is rotated and is connected on the casing, cutting edge and arbor fixed connection, housing face is provided with the first trompil that supplies the fourth transmission shaft to go deep, be provided with eighth bevel gear on the fourth transmission shaft, the cover is equipped with first bevel gear on the arbor, eighth bevel gear and first bevel gear want the meshing, the fourth transmission shaft drives the arbor and rotates, and the drive cutting edge stretches out casing below opening upset.

The utility model discloses further set up to: go into native mechanism including drill bit, pivot, base and flank, be provided with the second trompil that supplies the third transmission shaft to stretch into and the third trompil that supplies the third transmission shaft to stretch out on the base, the pivot rotates with the base to be connected, the one end that the base was stretched out in the pivot links to each other with the drill bit, the drill bit tip is towards hack mechanism and is the co-altitude setting with hack mechanism, be provided with the pinion in the pivot, the cover is equipped with the gear wheel on the fourth transmission shaft, the pinion wants the meshing with the gear wheel, the fourth transmission shaft drives the pivot and rotates, the flank is the sheet metal of two vertical settings, the flank is located the left and right sides of base and links to each other with the base.

The utility model discloses further set up to: the mounting bracket is including first mounting bracket, second mounting bracket and third mounting bracket, first mounting bracket cooperatees with the bearing, is fixed in the walking ware with bearing and first transmission shaft on, the second mounting bracket rotates with the second transmission shaft to be connected, the third mounting bracket links to each other with casing and base respectively, the third mounting bracket rotates with the third transmission shaft to be connected.

The utility model discloses further set up to: the blade is in a bent strip shape.

The utility model discloses further set up to: the cutter shaft is provided with a rolling bearing for reducing friction force, the shell is provided with a bearing seat, the rolling bearing is matched with the bearing seat, and the bearing seat applies external support force to the rolling bearing.

The utility model discloses further set up to: the soil crushing mechanism is detachably connected with the third mounting frame.

The utility model discloses further set up to: the side wings are arranged on two sides of the base and are arranged in an inclined mode towards the base in the vertical direction, and the distance between the side wings is gradually reduced along the walking direction of the walker.

To sum up, the utility model discloses following beneficial effect has: be provided with the transmission who links to each other with engine output shaft on the walking ware, it drives this novel furrow opener motion to provide the power supply, it is provided with the mounting bracket with transmission, hack mechanism, it is fixed in on the walking ware to bury the mechanism, it can cut up soil and the follow-up ditching of grass is convenient for to set up hack mechanism, it is used for ditching to be provided with bury the mechanism, it is fixed with first transmission shaft through being provided with the bearing with mounting bracket matched with, and first transmission shaft rotates with the mounting bracket to be connected, be fixed in on the walking ware with whole first transmission mechanism, the transmission direction of power can be changed through the meshing transmission between the bevel gear, pass through transmission to hack mechanism with the mechanism in with the power of engine, make transmission compact structure, save space.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a schematic structural diagram of the first transmission mechanism and the first and second mounting brackets of the present invention;

fig. 3 is a schematic structural view of the soil-entering mechanism and the third mounting frame of the present invention;

FIG. 4 is a schematic structural view of the soil breaking mechanism of the present invention;

fig. 5 is a top view of the soil-penetrating mechanism of the present invention.

Reference numerals: 1. a transmission device; 11. a second bevel gear; 12. a first drive shaft; 121. a third bevel gear; 122. a bearing; 123. a fourth bevel gear; 13. a first mounting bracket; 14. a second mounting bracket; 15. A second drive shaft; 151. a fifth bevel gear; 16. a third drive shaft; 161. a sixth bevel gear; 17. a fourth drive shaft; 171. a seventh bevel gear; 172. a bull gear; 173. an eighth bevel gear; 2. a soil crushing mechanism; 21. a housing; 22. a blade; 23. a cutter shaft; 24. a first bevel gear; 3. a soil-entering mechanism; 31. a base; 32. a third mounting bracket; 33. a side wing; 34. a rotating shaft; 35. a pinion gear; 36. a drill bit; 4. a first pulley; 5. a second pulley; 6. a transmission belt; 7. a rolling bearing; 8. and a bearing seat.

Detailed Description

As shown with reference to figures 1 to 5,

a tractor tail transmission device 1 for a furrow opener comprises a transmission device 1, a soil breaking mechanism 2, an earth entering mechanism 3 and a mounting frame, wherein the transmission device 1, the soil breaking mechanism 2 and the earth entering mechanism 3 are fixed at the front end or the rear end of a walking device through the mounting frame, the transmission device 1 is connected with an engine of the walking device, the transmission device 1 is used for driving the soil breaking mechanism 2 and the earth entering mechanism 3 to move, the soil breaking mechanism 2 is positioned in front of the walking device in the walking direction of the walking device, the soil breaking mechanism 2 is used for cutting large soil and green grass, the earth entering mechanism 3 is used for ditching, the transmission device 1 comprises a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, the first transmission mechanism is connected with the engine of the walking device, the third transmission mechanism is connected with the soil breaking mechanism and the earth entering mechanism 3, the second transmission mechanism is respectively in transmission connection with the first transmission mechanism and the second transmission mechanism, the first transmission mechanism comprises a second bevel gear 11, a first transmission shaft 12 and a second transmission shaft 15, the second bevel gear 11 is sleeved on an output shaft of the engine, one end of the first transmission shaft 12 is sleeved with a third bevel gear 121 meshed with the second bevel gear 11, the first transmission shaft 12 is provided with a bearing 122, the bearing 122 is matched with the mounting frame, one end of the first transmission shaft 12, which is far away from the third bevel gear 121, is provided with a fourth bevel gear 123, the second transmission shaft 15 is provided with a fifth bevel gear 151 meshed with the fourth bevel gear 123, the second transmission shaft 15 is rotatably connected with the mounting frame, the second transmission shaft 15 is connected with the second transmission mechanism, the transmission device 1 connected with the output shaft of the engine on the walking device is arranged, a power source is provided to drive the novel furrow opener to move, the mounting frame is provided to fix the transmission device 1, the soil breaking mechanism 2 and the soil entering mechanism 3 on the walking device, but set up hack mechanism 2 and cut up soil and the grass is convenient for follow-up ditching, it is used for ditching to be provided with mechanism 3 that buries, it is fixed with first transmission shaft 12 through being provided with bearing 122 with mounting bracket matched with, and first transmission shaft 12 rotates with the mounting bracket to be connected, be fixed in the walking ware with whole first transmission mechanism on, the transmission direction of meshing transmission can change power between the bevel gear, pass through transmission mechanism with the power of engine and transmit to hack mechanism 2 and bury in the mechanism 3, make transmission compact structure, and space is saved.

The second transmission mechanism comprises a first belt wheel 4, a second belt wheel 5 and a transmission belt 6, the first belt wheel 4 is sleeved on the second transmission shaft 15, the first belt wheel 4 and the second belt wheel 5 are transmitted through the transmission belt 6, the second belt wheel 5 is connected with the third transmission mechanism, the transmission distance can be prolonged through belt transmission in the second transmission mechanism while the stable transmission ratio is not influenced, the subsequent transmission mechanism can transmit energy to the soil crushing mechanism 2 and the soil penetrating mechanism 3 conveniently, and the energy loss of transmission is reduced.

The third transmission mechanism comprises a third transmission shaft 16 and a fourth transmission shaft 17, the second belt wheel 5 is sleeved on the third transmission shaft 16, the third transmission shaft 16 is rotatably connected with the mounting frame, the third transmission shaft 16 penetrates through the soil-entering mechanism 3 and is provided with a sixth bevel gear 161, the fourth transmission shaft 17 is sleeved with a seventh bevel gear 171 meshed with the sixth bevel gear 161, the fourth transmission shaft 17 penetrates out of the soil-entering mechanism 3 and is connected with the soil-breaking mechanism 2, the fourth transmission shaft 17 meshed with the third transmission shaft 16 is arranged and is connected with the soil-entering mechanism 3 and the soil-breaking mechanism 2, the transmission direction of power can be changed through meshing transmission between the bevel gears, and the power is transmitted to the soil-breaking mechanism 2 and the soil-entering mechanism 3 through the fourth transmission shaft 17, so that the transmission structure is compact and the space is saved.

The soil crushing mechanism 2 comprises a shell 21, a blade 22 and a cutter shaft 23, the shell 21 is connected with an installation frame, an opening is formed in the lower portion of the shell 21, the cutter shaft 23 is horizontally connected to the shell 21 in a rotating mode, the blade 22 is fixedly connected with the cutter shaft 23, a first open hole for the fourth transmission shaft 17 to go deep is formed in the surface of the shell 21, an eighth bevel gear 173 is arranged on the fourth transmission shaft 17, a first bevel gear 24 is sleeved on the cutter shaft 23, the eighth bevel gear 173 is meshed with the first bevel gear 24, the fourth transmission shaft 17 drives the cutter shaft 23 to rotate, the blade 22 is driven to extend out of the lower portion of the shell 21 to turn, the fourth transmission shaft 17 drives the cutter shaft 23 to rotate, the blade 22 on the cutter shaft 23 extends out of the opening to turn over cultivated land along with the rotation of the cutter shaft 23, large soil blocks and green grass are cut, the resistance of subsequent ditching is reduced, and the problem that a ditcher is difficult to enter the soil is solved.

The soil-entering mechanism 3 comprises a drill 36, a rotating shaft 34, a base 31 and a side wing 33, wherein a second opening for a third transmission shaft 16 to extend into and a third opening for the third transmission shaft 16 to extend out are arranged on the base 31, the rotating shaft 34 is rotatably connected with the base 31, one end of the rotating shaft 34 extending out of the base 31 is connected with the drill 36, the end part of the drill 36 faces the soil-breaking mechanism 2 and is arranged at the same height with the soil-breaking mechanism 2, a small gear 35 is arranged on the rotating shaft 34, a large gear 172 is sleeved on a fourth transmission shaft 17, the small gear 35 is meshed with the large gear 172, the fourth transmission shaft 17 drives the rotating shaft 34 to rotate, the side wing 33 is two vertically arranged thin plates, the side wing 33 is positioned at the left side and the right side of the base 31 and is connected with the base 31, the fourth transmission shaft 17 drives the rotating shaft 34 to rotate, one end of the rotating shaft 34 extending out of the base 31 is connected with the drill 36 to drive the drill 36 to rotate to ditch soil and reduce the resistance of the side wing 33, improve the performance of breaking soil after entering stubbles.

The mounting bracket is including first mounting bracket 13, second mounting bracket 14 and third mounting bracket 32, first mounting bracket 13 cooperatees with bearing 122, be fixed in the walking ware with bearing 122 and first transmission shaft 12 on, second mounting bracket 14 rotates with second transmission shaft 15 to be connected, third mounting bracket 32 links to each other with casing 21 and base 31 respectively, third mounting bracket 32 rotates with third transmission shaft 16 to be connected, through being provided with respectively being fixed in the first mounting bracket 13 on the walking ware with each part, second mounting bracket 14 and third mounting bracket 32, mechanism 3 and hack mechanism 2 and each drive mechanism will be buried on being fixed in the walking ware respectively, the area of contact who is responsible for the support on the improvement mounting bracket, increase stability.

The shape of the blade 22 is a curved strip, and the cutting area of the blade 22 to soil is increased in the overturning process through the curved strip-shaped blade 22, so that the soil loosening effect is improved.

The rolling bearing 7 for reducing friction force is arranged on the cutter shaft 23, the bearing seat 8 is arranged on the shell 21, the rolling bearing 7 is matched with the bearing seat 8, the bearing seat 8 applies external supporting force to the rolling bearing 7, the rolling bearing 7 sleeved on the outer side of the cutter shaft 23 is arranged to reduce the rotary vibration of the cutter shaft 23, the rolling bearing 7 is matched with the bearing seat 8 on the shell 21 to provide supporting force for the rolling bearing 7 and the cutter shaft 23, the energy loss of vibration is reduced, and meanwhile the service life of parts is prolonged.

Can dismantle between hack mechanism 2 and the third mounting bracket 32 and connect when ploughing neatly or soil texture is soft, need not hack mechanism 2 and block, can dismantle hack mechanism 2 and get off, reduce unnecessary energy resource consumption.

The flanks 33 are arranged on two sides of the base 31 and are obliquely arranged towards the base 31 in the vertical direction, the distance between the flanks 33 is gradually reduced along the walking direction of the walker, and the obliquely arranged flanks 33 can guide furrowing by virtue of oblique edges in the walking process, so that the resistance to furrowing is reduced.

The utility model discloses in the use, transmission 1 transmits the mode of energy with high conversion through first drive mechanism's bevel gear transmission to second drive mechanism and third drive mechanism, and then with the output shaft of walking ware engine on power transmission to hack mechanism 2 and go into native mechanism 3 for the walking ware walking drives hack mechanism 2 simultaneously and cuts soil, and 3 ditching of mechanism that goes into earth realize ploughing and wastefully digging.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a tractor afterbody transmission for furrow opener, includes transmission (1), characterized by: the soil cutting machine is characterized by further comprising a soil crushing mechanism (2), an underground mechanism (3) and a mounting frame, wherein the transmission device (1), the soil crushing mechanism (2) and the underground mechanism (3) are fixed at the front end or the rear end of the walking device through the mounting frame, the transmission device (1) is connected with an engine of the walking device, the transmission device (1) is used for driving the soil crushing mechanism (2) and the underground mechanism (3) to move, the soil crushing mechanism (2) is located in front of the underground mechanism (3) in the walking direction of the walking device, the soil crushing mechanism (2) is used for cutting up massive soil and cutting off green grass, the underground mechanism (3) is used for ditching, the transmission device (1) comprises a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, the first transmission mechanism is connected with the engine of the walking device, the third transmission mechanism is connected with the soil crushing mechanism and the underground mechanism (3), the second transmission mechanism is respectively connected with the first transmission mechanism and the second transmission mechanism in a transmission way, the first transmission mechanism comprises a second bevel gear (11), a first transmission shaft (12) and a second transmission shaft (15), the second bevel gear (11) is sleeved on an output shaft of the engine, one end of the first transmission shaft (12) is sleeved with a third bevel gear (121) meshed with the second bevel gear (11), a bearing (122) is arranged on the first transmission shaft (12), the bearing (122) is matched with the mounting rack, a fourth bevel gear (123) is arranged at one end of the first transmission shaft (12) far away from the third bevel gear (121), a fifth bevel gear (151) meshed with the fourth bevel gear (123) is arranged on the second transmission shaft (15), the second transmission shaft (15) is rotatably connected with the mounting frame, and the second transmission shaft (15) is connected with the second transmission mechanism.

2. The tractor tail transmission for a furrow opener as defined in claim 1, wherein: the second transmission mechanism comprises a first belt wheel (4), a second belt wheel (5) and a transmission belt (6), the first belt wheel (4) is sleeved on the second transmission shaft (15), the first belt wheel (4) and the second belt wheel (5) are transmitted through the transmission belt (6), and the second belt wheel (5) is connected with the third transmission mechanism.

3. The tractor tail transmission for a furrow opener as defined in claim 2, wherein: the third transmission mechanism comprises a third transmission shaft (16) and a fourth transmission shaft (17), the second belt wheel (5) is sleeved on the third transmission shaft (16), the third transmission shaft (16) is rotatably connected with the mounting frame, the third transmission shaft (16) penetrates through the soil-entering mechanism (3) and is provided with a sixth bevel gear (161), the fourth transmission shaft (17) is sleeved with a seventh bevel gear (171) meshed with the sixth bevel gear (161), and the fourth transmission shaft (17) penetrates out of the soil-entering mechanism (3) and is connected with the soil-breaking mechanism (2).

4. The tractor tail transmission for a furrow opener as defined in claim 1, wherein: the soil crushing mechanism (2) comprises a shell (21), a cutting edge (22) and a cutter shaft (23), the shell (21) is connected with an installation frame, an opening is formed in the lower portion of the shell (21), the cutter shaft (23) is horizontally and rotatably connected to the shell (21), the cutting edge (22) is fixedly connected with the cutter shaft (23), a first hole for a fourth transmission shaft (17) to go deep is formed in the surface of the shell (21), an eighth bevel gear (173) is arranged on the fourth transmission shaft (17), a first bevel gear (24) is sleeved on the cutter shaft (23), the eighth bevel gear (173) is meshed with the first bevel gear (24), the fourth transmission shaft (17) drives the cutter shaft (23) to rotate, and the cutting edge (22) is driven to stretch out of the opening in the lower portion of the shell (21) to turn.

5. The tractor tail transmission for a furrow opener as defined in claim 3, wherein: the soil-entering mechanism (3) comprises a drill bit (36), a rotating shaft (34), a base (31) and a side wing (33), a second opening for the third transmission shaft (16) to extend into and a third opening for the third transmission shaft (16) to extend out are arranged on the base (31), the rotating shaft (34) is rotatably connected with the base (31), one end of the rotating shaft (34) extending out of the base (31) is connected with the drill bit (36), the end part of the drill bit (36) faces the soil crushing mechanism (2) and is arranged at the same height with the soil crushing mechanism (2), a pinion (35) is arranged on the rotating shaft (34), a bull gear (172) is sleeved on the fourth transmission shaft (17), the small gear (35) is engaged with the large gear (172), the fourth transmission shaft (17) drives the rotating shaft (34) to rotate, the side wings (33) are two vertically arranged thin plates, and the side wings (33) are positioned at the left side and the right side of the base (31) and connected with the base (31).

6. The tractor tail transmission for a furrow opener as defined in claim 1, wherein: the mounting bracket is including first mounting bracket (13), second mounting bracket (14) and third mounting bracket (32), first mounting bracket (13) cooperatees with bearing (122), is fixed in the walking ware with bearing (122) and first transmission shaft (12) on, second mounting bracket (14) are rotated with second transmission shaft (15) and are connected, third mounting bracket (32) link to each other with casing (21) and base (31) respectively, third mounting bracket (32) are rotated with third transmission shaft (16) and are connected.

7. The tractor tail transmission for a furrow opener as defined in claim 4, wherein: the blade (22) is in the shape of a bent strip.

8. The tractor tail transmission for a furrow opener as defined in claim 4, wherein: the cutter shaft (23) is provided with a rolling bearing (7) for reducing friction force, the shell (21) is provided with a bearing seat (8), the rolling bearing (7) is matched with the bearing seat (8), and the bearing seat (8) applies external supporting force to the rolling bearing (7).

9. The tractor tail transmission for a furrow opener as defined in claim 6, wherein: the soil crushing mechanism (2) is detachably connected with the third mounting frame (32).

10. The tractor tail transmission for a furrow opener as defined in claim 5, wherein: the side wings (33) are arranged on two sides of the base (31) and are arranged in an inclined mode towards the base (31) in the vertical direction, and the distance between the side wings (33) is gradually reduced along the walking direction of the walker.