Elastically suspended grass combing machine transmission structure

Abstract

The utility model relates to a grass combing machine transmission structure, in particular to an elastically suspended grass combing machine transmission structure, which comprises a mounting plate and a lifting support, and the lifting support is connected with the mounting plate through a suspension assembly. A first belt wheel is rotationally mounted on the mounting plate, and the first belt wheel is mounted at the output end of the power assembly; a mounting shaft is rotationally mounted on the lifting bracket; a third belt wheel is mounted at one end of the mounting shaft; the third belt wheel is connected with the first belt wheel through a belt; the adjusting piece is arranged on the lifting support and comprises a second belt wheel used for tightening the belt and an elastic piece used for providing extrusion force for the second belt wheel; the compensation piece is used for compensating the extrusion force of the elastic piece; when the lifting support gets close to or away from the mounting plate, under the action of the compensation piece, the extrusion force between the second belt wheel and the belt does not change greatly, the belt can be prevented from slipping, the situation that the belt is broken due to the instantly-increased extrusion force can be avoided, and therefore the service life of the grass combing machine is prolonged, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model relates to a transmission structure for a hay comber, specifically a transmission structure for a hay comber with elastic suspension. Background Technology

[0002] A lawnmower is a specialized garden machine tool used for the meticulous maintenance of lawns. Its core function is to remove debris and trim grass blades by combing the surface of the turf and the shallow soil, thereby promoting healthy lawn growth and maintaining its appearance. It is an important piece of equipment for maintaining lawn quality in golf courses, sports fields, parks, courtyards, and other similar settings.

[0003] The ground in common golf courses, sports fields, parks, courtyards and other settings is not flat but undulating; therefore, the brushes of common lawn combers are connected to the power unit through an elastic suspension transmission structure to meet the usage requirements.

[0004] A common flexible suspension transmission structure includes a first pulley connected to the power unit and a second pulley connected to the grass brush. The two pulleys are connected by a belt. An adjusting pulley is provided between the two pulleys. The adjusting pulley is equipped with a spring to maintain the compression force between the belt and each pulley. That is, when the distance between the first pulley and the second pulley decreases or increases, the spring compression decreases or increases to achieve belt tension.

[0005] As the distance between the first and second pulleys decreases or increases, the spring compression decreases or increases. At this time, the squeezing force between the pulley and the belt will decrease or increase. When the squeezing force decreases, the tension between the belt and the pulley is easily released by external vibration or collision. When the squeezing force increases, the belt is subjected to more force, which may cause the belt to break. Summary of the Invention

[0006] The purpose of this invention is to provide a flexible suspension transmission structure for a hay comber to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A flexible suspension drive structure for a hay comber includes a mounting plate installed on the chassis;

[0009] It also includes a lifting bracket, which is connected to the mounting plate via a suspension assembly;

[0010] A first pulley is rotatably mounted on the mounting plate, and the first pulley is mounted on the output end of the power assembly;

[0011] The lifting bracket is rotatably mounted with a mounting shaft for mounting a grass comb; a third pulley is mounted on one end of the mounting shaft; the third pulley is connected to the first pulley by a belt;

[0012] It also includes an adjusting element, disposed on the lifting bracket, comprising a second pulley for tightening the belt and an elastic element for providing the extrusion force to the second pulley;

[0013] A compensation component, which is used to compensate for the compressive force of the elastic component.

[0014] The elastic suspension drive structure for a hay comb, as described above, includes: a suspension assembly comprising multiple sets of telescopic sleeves mounted on the mounting plate; a telescopic column slidably engaged with the telescopic sleeves on the lifting bracket; a first spring is provided inside the telescopic sleeve; and the two ends of the first spring respectively abut against the telescopic sleeve and the telescopic column.

[0015] The elastic suspension drive structure of the hay comb described above: a third spring is wrapped around the telescopic column; the two ends of the third spring respectively abut against the telescopic column and the telescopic sleeve.

[0016] The elastic suspension drive structure of the hay comber described above includes: the elastic element includes a fixed sleeve mounted on the lifting bracket; a sliding sleeve is slidably installed inside the fixed sleeve; a telescopic square column slidably fitted inside the sliding sleeve and rotatably connected to the second pulley; a second spring is provided inside the sliding sleeve; and the two ends of the second spring respectively abut against the telescopic square column and the sliding sleeve.

[0017] The elastically suspended hay comb transmission structure described above: the cross-sections of the telescopic square column, the sliding sleeve, and the fixed sleeve are all square.

[0018] The elastically suspended hay comber transmission structure described above includes: the adjusting component includes a fixed plate mounted on the mounting plate, the fixed plate having an inclined groove; and a protruding post mounted on the sliding sleeve that slidably engages with the inclined groove.

[0019] The elastically suspended hay comb transmission structure described above: the telescopic sleeve has a slot for pressure reduction.

[0020] Compared with the prior art, the beneficial effects of this utility model are: when the lifting bracket is close to or far from the mounting plate, under the action of the compensation component, the squeezing force between the second pulley and the belt does not change much, which can prevent the belt from slipping and avoid belt breakage caused by the instantaneous increase in squeezing force, thereby improving the service life of the combing machine and reducing the maintenance frequency. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the transmission structure of a flexible suspension hay comb.

[0022] Figure 2 This is a schematic diagram of the mounting plate in the transmission structure of a flexible suspension hay comber.

[0023] Figure 3 This is a schematic diagram of the telescopic sleeve in the transmission structure of a flexible suspension hay comber.

[0024] Figure 4 This is a schematic diagram of the fixed plate in the transmission structure of a flexible suspension hay comber.

[0025] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Chassis;

[0027] 2. Mounting plate; 201. Telescopic sleeve;

[0028] 3. Lifting support; 301. Telescopic column;

[0029] 4. The first spring;

[0030] 5. Power components;

[0031] 6. First pulley;

[0032] 7. Second pulley;

[0033] 8. Third pulley;

[0034] 9. Install the shaft;

[0035] 10. Straw brush;

[0036] 11. Belt;

[0037] 12. Fixing sleeve;

[0038] 13. Sliding sleeve; 1301. Protruding post;

[0039] 14. Telescopic square column;

[0040] 15. The second spring;

[0041] 16. Fixing plate; 1601. Inclined groove;

[0042] 17. The third spring. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0044] Please see Figures 1-5 As one embodiment of the present utility model, the elastically suspended hay combing machine transmission structure includes a mounting plate 2 installed on the machine housing 1;

[0045] It also includes a lifting bracket 3, which is connected to the mounting plate 2 via a suspension assembly;

[0046] A first pulley 6 is rotatably mounted on the mounting plate 2, and the first pulley 6 is mounted on the output end of the power assembly 5;

[0047] The lifting bracket 3 is rotatably mounted with a mounting shaft 9 for mounting a grass comb 10; a third pulley 8 is mounted on one end of the mounting shaft 9; the third pulley 8 is connected to the first pulley 6 by a belt 11.

[0048] It also includes an adjusting component, which is disposed on the lifting bracket 3, including a second pulley 7 for tightening the belt 11 and an elastic component for providing the extrusion force of the second pulley 7;

[0049] A compensation component, which is used to compensate for the compressive force of the elastic component.

[0050] In this embodiment, when the power component 5 is activated, it drives the first pulley 6 to rotate, which in turn drives the third pulley 8 to rotate via the belt 11, which in turn drives the grass brush 10 to rotate via the mounting shaft 9, so as to comb the grass.

[0051] The mounting plate 2 and the lifting bracket 3 are connected by a suspension assembly. The lifting bracket 3 can move closer to or further away from the mounting plate 2 through the suspension assembly, which can absorb the vertical displacement and impact energy caused by ground undulations. This allows the grass comb 10 to always "adapt" to changes in ground height and maintain stable contact pressure with the turf, thereby improving the service life of the grass comber.

[0052] When the lifting bracket 3 is moved closer to or further away from the mounting plate 2 by external force, the distance between the first pulley 6 and the third pulley 8 will decrease or increase. During this process, the adjusting component will keep the belt 11 taut to prevent the belt 11 from slipping. That is, the second pulley 7 will gradually move away from or closer to the lifting bracket 3 as the lifting bracket 3 is displaced under the squeezing force provided by the elastic component, thereby keeping the belt 11 in close contact with the first pulley 6 and the third pulley 8.

[0053] Meanwhile, under the action of the compensation component, the squeezing pressure between the second pulley 7 and the belt 11 does not change significantly. This can prevent the belt 11 from slipping and also avoid the belt 11 from breaking due to the instantaneous increase in squeezing pressure, thereby improving the service life of the comber and reducing the maintenance frequency.

[0054] As a further embodiment of this utility model, the suspension assembly includes multiple sets of telescopic sleeves 201 mounted on the mounting plate 2, and a telescopic column 301 that slides and engages with the telescopic sleeves 201 is mounted on the lifting bracket 3; a first spring 4 is provided inside the telescopic sleeve 201; the two ends of the first spring 4 respectively abut against the telescopic sleeve 201 and the telescopic column 301.

[0055] As a further embodiment of this utility model, a third spring 17 is wrapped around the telescopic column 301; the two ends of the third spring 17 respectively abut against the telescopic column 301 and the telescopic sleeve 201.

[0056] In this embodiment, initially, the telescopic column 301 remains in the middle of the telescopic sleeve 201 due to the elastic force of the first spring 4 and the third spring 17. When working on uneven ground, the protruding ground will squeeze the comb brush 10, thereby driving the lifting bracket 3 closer to the mounting plate 2. At this time, the telescopic column 301 will slide inward within the telescopic sleeve 201, thereby compressing the first spring 4 and reducing the compression of the third spring 17. When the comb brush passes over the protruding ground, the elastic force of the first spring 4 will drive the telescopic column 301 to slide outward within the telescopic sleeve 201, so that the lifting bracket 3 moves away from the mounting plate 2 to complete the reset. During this process, the compression of the third spring 17 gradually increases. The elastic force of the third spring 17 can prevent rigid collision between the telescopic column 301 and the telescopic sleeve 201, thus protecting the stability of the transmission mechanism.

[0057] By absorbing the vertical displacement and impact energy caused by ground undulations through the suspension components, the grass comb 10 always "adapts" to changes in ground height, maintaining stable contact pressure with the turf, thereby improving the service life of the grass comber.

[0058] As a further embodiment of this utility model, the elastic element includes a fixed sleeve 12 mounted on the lifting bracket 3; a sliding sleeve 13 is slidably installed inside the fixed sleeve 12; a telescopic square column 14 slidably fitted inside the sliding sleeve 13 and rotatably connected to the second pulley 7; a second spring 15 is provided inside the sliding sleeve 13; the two ends of the second spring 15 respectively abut against the telescopic square column 14 and the sliding sleeve 13.

[0059] In this embodiment, in the initial state, the second spring 15 is compressed; the elastic force of the second spring 15 acts on the telescopic square post 14 to drive the second pulley 7 to squeeze the belt 11, thereby ensuring that the belt 11 is in close contact with the first pulley 6 and the third pulley 8, so as to avoid the belt 11 slipping.

[0060] When the lifting bracket 3 moves closer to or further away from the mounting plate 2, the distance between the first pulley 6 and the third pulley 8 will decrease or increase, and the squeezing force between the belt 11 and the second pulley 7 will decrease or increase. At this time, the elastic force of the second spring 15 will drive the telescopic square column 14 to slide outward in the sliding sleeve 13, or the telescopic square column 14 will slide inward in the sliding sleeve 13 under the squeezing action of the belt 11, so that the belt 11 and the first pulley 6 and the third pulley 8 are in close contact, and the belt 11 is prevented from slipping.

[0061] As a further embodiment of this utility model, the cross-sections of the telescopic square column 14, the sliding sleeve 13, and the fixed sleeve 12 are all square.

[0062] In this embodiment, the cross-sections of the telescopic square column 14, the sliding sleeve 13, and the fixed sleeve 12 are all square, which can effectively prevent the second pulley 7 from deflecting, thereby preventing the belt 11 from disengaging from the second pulley 7 and improving the stability of the combing machine.

[0063] As a further embodiment of this utility model, the adjusting component includes a fixing plate 16 mounted on the mounting plate 2, the fixing plate 16 having an inclined groove 1601; and a protruding post 1301 mounted on the sliding sleeve 13 that slidably engages with the inclined groove 1601.

[0064] In this embodiment, when the lifting bracket 3 approaches the mounting plate 2, the distance between the first pulley 6 and the third pulley 8 will decrease. At this time, the elastic force of the second spring 15 will be released, thereby maintaining the belt 11 in a taut state. Simultaneously, the protruding post 1301 will slide in the inclined groove 1601, thereby driving the sliding sleeve 13 to move towards the second pulley 7 to compress the second spring 15, so that the elastic force of the second spring 15 is not much different from the elastic force in the initial state, thereby ensuring the squeezing force between the second pulley 7 and the belt 11.

[0065] When the lifting bracket 3 moves away from the mounting plate 2, the distance between the first pulley 6 and the third pulley 8 will increase, and the compression of the second spring 15 will increase. Meanwhile, the protruding column 1301 will slide in the inclined groove 1601, thereby driving the sliding sleeve 13 away from the second pulley 7 to release the elastic force of the second spring 15, so that the elastic force of the second spring 15 is not much different from the elastic force in the initial state, thereby preventing the belt 11 from breaking.

[0066] As a further improvement of this utility model, the telescopic sleeve 201 is provided with a slot for pressure reduction.

[0067] In this embodiment, when the lifting bracket 3 approaches the mounting plate 2 too quickly, the pressure inside the telescopic sleeve 201 will suddenly increase. The slot is used to discharge the gas inside the telescopic sleeve 201, thereby preventing the telescopic sleeve 201 from cracking and being damaged.

[0068] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A flexible suspension drive structure for a hay comber, comprising a mounting plate (2) mounted on a housing (1); Its features are, It also includes a lifting bracket (3), which is connected to the mounting plate (2) via a suspension assembly; A first pulley (6) is rotatably mounted on the mounting plate (2), and the first pulley (6) is mounted on the output end of the power assembly (5); The lifting bracket (3) is rotatably mounted with a mounting shaft (9) for mounting a grass comb (10); a third pulley (8) is mounted on one end of the mounting shaft (9); the third pulley (8) is connected to the first pulley (6) by a belt (11); It also includes an adjusting member disposed on the lifting bracket (3), including a second pulley (7) for tightening the belt (11) and an elastic member for providing the compression force of the second pulley (7); A compensation component, which is used to compensate for the compressive force of the elastic component.

2. The elastically suspended transmission structure for a hay comber according to claim 1, characterized in that, The suspension assembly includes multiple sets of telescopic sleeves (201) mounted on the mounting plate (2), and a telescopic column (301) that slides and engages with the telescopic sleeves (201) is mounted on the lifting bracket (3); a first spring (4) is provided inside the telescopic sleeve (201); the two ends of the first spring (4) abut against the telescopic sleeve (201) and the telescopic column (301) respectively.

3. The elastically suspended transmission structure for a hay comber according to claim 2, characterized in that, A third spring (17) is wrapped around the telescopic column (301); the two ends of the third spring (17) abut against the telescopic column (301) and the telescopic sleeve (201), respectively.

4. The elastically suspended transmission structure for a hay comber according to claim 1, characterized in that, The elastic element includes a fixed sleeve (12) mounted on the lifting bracket (3); a sliding sleeve (13) is slidably installed inside the fixed sleeve (12); a telescopic square column (14) slidably fitted inside the sliding sleeve (13) and rotatably connected to the second pulley (7); a second spring (15) is provided inside the sliding sleeve (13); the two ends of the second spring (15) respectively abut against the telescopic square column (14) and the sliding sleeve (13).

5. The elastically suspended transmission structure for a hay comber according to claim 4, characterized in that, The cross-sections of the telescopic square column (14), the sliding sleeve (13), and the fixed sleeve (12) are all square.

6. The elastically suspended transmission structure for a hay comber according to claim 4, characterized in that, The adjusting component includes a fixing plate (16) mounted on the mounting plate (2), and the fixing plate (16) has a groove (1601) on it; the sliding sleeve (13) is equipped with a protruding post (1301) that slides and engages with the groove (1601).

7. The elastically suspended transmission structure for a hay comber according to claim 2, characterized in that, The telescopic sleeve (201) has a slot for pressure reduction.

Images