A drive device for a ride-on screed and a screed

Abstract

The utility model provides a kind of driving device of driving type screed, the driving device includes box, the driving motor being fixed on the box, the first gear being set on the driving shaft of driving motor and being located in the box, the gear set being rotatably set in the box and being engaged with first gear, the output shaft being extended from the box to the box and being rotatably connected with the box, the output gear being set on the output shaft and being engaged with gear set, the extension end of the output shaft is used to install screed mechanism.In driving process, driving motor rotates first gear by driving shaft, first gear drives output gear to rotate by gear set, and output gear drives output shaft and screed mechanism mounted on output shaft to rotate and realizes screeding operation.One driving motor drives one screed mechanism to rotate, and each screed is driven by left and right two driving devices respectively to drive two groups of screed mechanism to rotate, which can make the control of screed more flexible and have higher control accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of power trowels, specifically relating to a drive device for a ride-on power trowel and the power trowel itself. Background Technology

[0002] A floor trowel is a machine used to smooth floor surfaces made of concrete, cement, mortar, or other suitable mineral materials. It can perform both rough and fine finishing on concrete surfaces, resulting in smoother and flatter surfaces compared to those finished manually. This significantly improves the density and wear resistance of the concrete surface. Floor trowels are widely used for leveling, smoothing, and finishing concrete or other mineral material surfaces in high-standard factories, warehouses, parking lots, plazas, airports, and framed buildings.

[0003] Existing ride-on power trowels have non-independent left and right housings, with a single drive motor simultaneously driving the trowel blades on both sides, resulting in low control precision. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a drive device for a ride-on power trowel and a power trowel itself.

[0005] To achieve the above and other related objectives, this utility model provides a drive device for a ride-on power smoother. The drive device includes a housing, a drive motor fixed on the housing, a first gear disposed on the drive shaft of the drive motor and located inside the housing, a gear set rotatably disposed inside the housing and meshing with the first gear, an output shaft extending from inside the housing and rotatably connected to the housing, and an output gear disposed on the output shaft and meshing with the gear set. The extended end of the output shaft is used to mount a smoothing mechanism.

[0006] Optionally, the gear set includes a first rotating rod rotatably disposed within the housing, a second gear sleeved on the first rotating rod and rotating with the first rotating rod, a third gear sleeved on the first rotating rod and rotating with the first rotating rod, a second rotating rod rotatably disposed within the housing, a fourth gear sleeved on the second rotating rod and rotating with the second rotating rod, and a fifth gear sleeved on the second rotating rod and rotating with the second rotating rod. The second gear meshes with the first gear, the third gear meshes with the fifth gear, and the fourth gear meshes with the output gear.

[0007] Optionally, the first gear, second gear, third gear, fourth gear, fifth gear, and output gear are all helical gears.

[0008] Optionally, the number of teeth of the second gear is greater than the number of teeth of the first gear, the number of teeth of the fifth gear is greater than the number of teeth of the third gear, and the number of teeth of the output gear is greater than the number of teeth of the fourth gear.

[0009] Optionally, at least one first bearing is fitted on the drive shaft, a second bearing is fitted on the top end of the first rotating rod, a third bearing is fitted on the bottom end of the first rotating rod, a fourth bearing is fitted on the top end of the second rotating rod, a fifth bearing is fitted on the bottom end of the second rotating rod, a sixth bearing is fitted on the top end of the output shaft, and a seventh bearing is fitted on the position where the output shaft extends from the housing.

[0010] Optionally, the housing contains a first circular cavity for rotatable housing of the first bearing, a second circular cavity for rotatable housing of the second bearing, a third circular cavity for rotatable housing of the third bearing, a fourth circular cavity for rotatable housing of the fourth bearing, a fifth circular cavity for rotatable housing of the fifth bearing, a sixth circular cavity for rotatable housing of the sixth bearing, and a seventh circular cavity for rotatable housing of the seventh bearing.

[0011] Optionally, the housing includes a lower housing and an upper housing that is detachably covered on the lower housing. The upper housing includes a heat dissipation section and a mounting section for fixing a drive motor. The heat dissipation plate protrudes from the top surface of the mounting section.

[0012] Optionally, the first circular cavity is disposed in the upper housing or the lower housing, the second, fourth, and sixth circular cavities are disposed in the upper housing, and the third, fifth, and seventh circular cavities are disposed in the lower housing.

[0013] Optionally, the lower housing is provided with an extension hole for the output shaft to extend out, and the upper housing is provided with an insertion hole for the drive shaft to enter.

[0014] To achieve the above and other related objectives, this utility model also provides a ride-on power trowel, which includes the drive device as described above.

[0015] As described above, the drive device and the trowel of this utility model have the following advantages: When using the drive device of this utility model, a drive device can be installed on each side of the trowel to drive two independent troweling mechanisms (trowel blades, etc.). During the driving process, the drive motor drives the first gear to rotate through the drive shaft, the first gear drives the output gear to rotate through the gear set, and the output gear drives the output shaft and the troweling mechanism mounted on the output shaft to rotate and realize the troweling operation. In this application, one drive motor drives one troweling mechanism to rotate, and each trowel is driven by two drive devices on the left and right sides to drive two sets of troweling mechanisms to rotate, which makes the control of the trowel more flexible and the control precision higher. Attached Figure Description

[0016] Figure 1 The diagram shown is a structural schematic of the drive device of the ride-on power trowel provided by this utility model;

[0017] Figure 2 The diagram shown is a cross-sectional view of the drive unit of the ride-on power trowel provided by this utility model.

[0018] Figure 3 The diagram shown is an exploded view of the drive unit of the ride-on power trowel provided by this utility model. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. For ease of explanation, when detailing the embodiments of this utility model, the cross-sectional views showing the device structure may be partially enlarged without adhering to the general scale, and the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. Furthermore, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0020] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for devices in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it may be the only layer between the two layers, or there may be one or more layers in between.

[0021] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in the actual implementation. In the actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. To keep the illustrations as concise as possible, not all structures are indicated in the drawings.

[0022] like Figure 1-3 As shown, this embodiment provides a drive device for a ride-on power smoother. The drive device 10 includes a housing 11, a drive motor 12 fixed on the housing 11, a first gear 14 disposed on the drive shaft 13 of the drive motor 12 and located inside the housing 11, a gear set 15 rotatably disposed inside the housing 11 and meshing with the first gear 14, an output shaft 16 extending from inside the housing 11 to outside the housing 11 and rotatably connected to the housing 11, and an output gear 17 disposed on the output shaft 16 and meshing with the gear set 15. The extended end of the output shaft 16 is used to mount a smoothing mechanism.

[0023] When using the drive unit 10 of the ride-on power trowel of this invention, one drive unit 10 can be installed on each side of the power trowel to drive two independent power troweling mechanisms (power trowels, etc.) respectively. During the driving process, the drive motor 12 drives the first gear 14 to rotate via the drive shaft 13. The first gear 14 drives the output gear 17 to rotate via the gear set 15. The output gear 17 drives the output shaft 16 and the power troweling mechanism mounted on the output shaft 16 to rotate and realize the power troweling operation. In this application, one drive motor 12 drives one power troweling mechanism to rotate, and each power trowel is driven by two drive units 10 on the left and right sides to drive two sets of power troweling mechanisms to rotate respectively, which makes the control of the power trowel more flexible and the control precision higher.

[0024] Specifically, such as Figure 2 As shown, the gear set 15 includes a first rotating rod 18 rotatably disposed within the housing 11, a second gear 19 sleeved on the first rotating rod 18 and rotating with the first rotating rod 18, a third gear 20 sleeved on the first rotating rod 18 and rotating with the first rotating rod 18, a second rotating rod 21 rotatably disposed within the housing 11, a fourth gear 22 sleeved on the second rotating rod 21 and rotating with the second rotating rod 21, and a fifth gear 23 sleeved on the second rotating rod 21 and rotating with the second rotating rod 21. The second gear 19 meshes with the first gear 14, the third gear 20 meshes with the fifth gear 23, and the fourth gear 22 meshes with the output gear 17.

[0025] Understandably, the second gear 19 and the third gear 20 rotate synchronously with the first rotating rod 18 inside the housing 11, and the fourth gear 22 and the fifth gear 23 rotate synchronously with the second rotating rod 21 inside the housing 11.

[0026] Preferably, the first gear 14, the second gear 19, the third gear 20, the fourth gear 22, the fifth gear 23, and the output gear 17 are all helical gears. The torque of the drive motor 12 is transmitted to the output shaft 16 through the helical gear set 15. The helical gear set 15 transmits torque in layers, which can save reduction space.

[0027] In this embodiment, the number of teeth of the second gear 19 is greater than the number of teeth of the first gear 14, the number of teeth of the fifth gear 23 is greater than the number of teeth of the third gear 20, and the number of teeth of the output gear 17 is greater than the number of teeth of the fourth gear 22. By setting the gear ratio, torque can be increased while decelerating.

[0028] Specifically, such as Figure 3 As shown, at least one first bearing 24 is fitted on the drive shaft 13, a second bearing 25 is fitted on the top end of the first rotating rod 18, a third bearing 26 is fitted on the bottom end of the first rotating rod 18, a fourth bearing 27 is fitted on the top end of the second rotating rod 21, a fifth bearing 28 is fitted on the bottom end of the second rotating rod 21, a sixth bearing 29 is fitted on the top end of the output shaft 16, and a seventh bearing 30 is fitted on the position where the output shaft 16 extends from the housing 11.

[0029] To facilitate the installation of the bearings and the rotation of the rotating rod, the housing 11 is provided with a first circular cavity 33 for the first bearing 24 to rotate and accommodate, a second circular cavity for the second bearing 25 to rotate and accommodate, a third circular cavity 34 for the third bearing 26 to rotate and accommodate, a fourth circular cavity for the fourth bearing 27 to rotate and accommodate, a fifth circular cavity 35 for the fifth bearing 28 to rotate and accommodate, a sixth circular cavity for the sixth bearing 29 to rotate and accommodate, and a seventh circular cavity 36 for the seventh bearing 30 to rotate and accommodate.

[0030] The first bearing 24, the second bearing 25, the third bearing 26, the fourth bearing 27, the fifth bearing 28, the sixth bearing 29, and the seventh bearing 30 are respectively embedded in the first circular cavity 33, the second circular cavity, the third circular cavity 34, the fourth circular cavity, the fifth circular cavity 35, the sixth circular cavity, and the seventh circular cavity 36.

[0031] To achieve better heat dissipation, the housing 11 includes a lower housing 31 and an upper housing 32 that is detachably covered on the lower housing 31. The upper housing 32 includes a heat dissipation part 37 and a mounting part 38 for fixing the drive motor 12. The heat dissipation plate protrudes from the top surface of the mounting part 38.

[0032] The heat generated during the rotation of gear set 15 can be dissipated to the outside through the heat dissipation space inside heat dissipation part 37.

[0033] Specifically, the first circular cavity 33 is disposed in the upper shell 32 or the lower shell 31, the second circular cavity, the fourth circular cavity, and the sixth circular cavity are disposed in the upper shell 32, and the third circular cavity 34, the fifth circular cavity 35, and the seventh circular cavity 36 are disposed in the lower shell 31.

[0034] Furthermore, the lower housing 31 is provided with an extension hole 39 for the output shaft 16 to extend out, and the upper housing 32 is provided with an insertion hole 40 for the drive shaft 13 to extend into.

[0035] This utility model also provides a ride-on power trowel, which includes a drive unit 10 as described above, and a power troweling mechanism mounted on the output shaft 16 of the drive unit 10. It is understood that the power troweling mechanism includes blades, a rotating component for mounting the blades, etc.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A drive device for a ride-on power trowel, characterized in that, The driving device includes a housing, a drive motor fixed on the housing, a first gear disposed on the drive shaft of the drive motor and located inside the housing, a gear set rotatably disposed inside the housing and meshing with the first gear, an output shaft extending from inside the housing and rotatably connected to the housing, and an output gear disposed on the output shaft and meshing with the gear set. The extended end of the output shaft is used to install a smoothing mechanism.

2. The drive device of the ride-on power trowel according to claim 1, characterized in that, The gear set includes a first rotating rod rotatably disposed within the housing, a second gear sleeved on the first rotating rod and rotating with the first rotating rod, a third gear sleeved on the first rotating rod and rotating with the first rotating rod, a second rotating rod rotatably disposed within the housing, a fourth gear sleeved on the second rotating rod and rotating with the second rotating rod, and a fifth gear sleeved on the second rotating rod and rotating with the second rotating rod. The second gear meshes with the first gear, the third gear meshes with the fifth gear, and the fourth gear meshes with the output gear.

3. The drive device for the ride-on power trowel according to claim 2, characterized in that, The first gear, second gear, third gear, fourth gear, fifth gear, and output gear are all helical gears.

4. The drive device of the ride-on power trowel according to claim 2, characterized in that, The second gear has more teeth than the first gear, the fifth gear has more teeth than the third gear, and the output gear has more teeth than the fourth gear.

5. The drive device for the ride-on power trowel according to claim 2, characterized in that, At least one first bearing is fitted on the drive shaft, a second bearing is fitted on the top end of the first rotating rod, a third bearing is fitted on the bottom end of the first rotating rod, a fourth bearing is fitted on the top end of the second rotating rod, a fifth bearing is fitted on the bottom end of the second rotating rod, a sixth bearing is fitted on the top end of the output shaft, and a seventh bearing is fitted on the position where the output shaft extends from the housing.

6. The drive unit of the ride-on power trowel according to claim 5, characterized in that, The housing contains a first circular cavity for the first bearing to rotate and accommodate, a second circular cavity for the second bearing to rotate and accommodate, a third circular cavity for the third bearing to rotate and accommodate, a fourth circular cavity for the fourth bearing to rotate and accommodate, a fifth circular cavity for the fifth bearing to rotate and accommodate, a sixth circular cavity for the sixth bearing to rotate and accommodate, and a seventh circular cavity for the seventh bearing to rotate and accommodate.

7. The drive device for the ride-on power trowel according to claim 6, characterized in that, The housing includes a lower housing and an upper housing that is detachably covered on the lower housing. The upper housing includes a heat dissipation section and a mounting section for fixing the drive motor. The heat dissipation plate protrudes from the top surface of the mounting section.

8. The drive unit of the ride-on power trowel according to claim 7, characterized in that, The first circular cavity is disposed in the upper shell or the lower shell, the second, fourth, and sixth circular cavities are disposed in the upper shell, and the third, fifth, and seventh circular cavities are disposed in the lower shell.

9. The drive device for the ride-on power trowel according to claim 8, characterized in that, The lower housing has an extension hole for the output shaft to extend out, and the upper housing has an insertion hole for the drive shaft to enter.

10. A ride-on power trowel, characterized in that, The smoothing machine includes a drive device as described in any one of claims 1-9.

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