Novel planetary gear box of floor grinding machine

Abstract

The utility model relates to a novel terrace grinding machine planetary gear box which comprises a gear box, a center shaft and four execution shafts, the center shaft and the four execution shafts are vertically and rotatably arranged in the gear box, the four execution shafts are arranged on the periphery of the center shaft in a surrounding mode and extend downwards to the outside of the gear box, and a driving gear is arranged on the center shaft. The driving gear is in meshing transmission with four driving transition gears arranged on the periphery of the driving gear in a surrounding mode, one set of two driving transition gears arranged in a diagonal mode are in coaxial transmission with two transmission gears respectively, and the two transmission gears drive two adjacent execution shafts to rotate respectively. According to the novel planetary gearbox of the floor grinding machine, the driving gear is wrapped by the four driving transition gears, two driving transition gears are used for transmission, the other two driving transition gears do not transmit power and are only used for sharing part of radial force, the structure is stable, and the service life of the driving transition gears can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of floor grinding machines, in particular to a novel planetary gear box for floor grinding machines. Background Art

[0002] With the continuous advancement of floor grinding technology, the performance requirements for grinding equipment are also constantly increasing. As the core transmission component of the floor grinder, the performance of the planetary gearbox directly affects the grinding efficiency and service life of the equipment. The planetary gearboxes currently on the market have problems such as complex structure, low transmission efficiency, and easy wear, which restrict the development of floor grinding technology. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a new type of planetary gearbox for floor grinding machine in view of the deficiencies in the prior art, which has a simple structure, high transmission efficiency and improved stability of the gearbox transmission structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A new type of planetary gearbox for floor grinding machine includes a gearbox, a central shaft vertically arranged in the gearbox and four execution shafts, the four execution shafts are arranged around the central shaft and the four execution shafts extend downward to the outside of the gearbox, a driving gear is arranged on the central shaft, and the driving gear is respectively meshed with four driving transition gears arranged around it for transmission, one group of two driving transition gears arranged diagonally are respectively coaxially transmitted with two transmission gears, and the two transmission gears respectively drive two adjacent execution shafts to rotate.

[0006] In order to better realize the utility model, further optimization is made in the above structure. A center tooth is rotatably set on the central shaft, and the two transmission gears are respectively meshed with the center tooth. The meshing position of the center tooth, the two execution shafts and the single transmission gear is a triangle shape.

[0007] In order to better realize the utility model, further optimization is made in the above structure, an execution gear is arranged on the execution shaft, the transmission gear meshes with one of the execution gears for transmission, and meshes with the other execution gear through an auxiliary gear for transmission.

[0008] In order to better realize the utility model, further optimization is made in the above structure, and a deep groove ball bearing and a tapered roller bearing are arranged on the central axis.

[0009] In order to better realize the utility model, further optimization is made in the above structure, and two deep groove ball bearings and two tapered roller bearings are arranged on the execution shaft.

[0010] In order to better realize the utility model, further optimization is made in the above structure, and the four active transition gears are evenly arranged along the circumferential direction of the active gear.

[0011] In order to better realize the utility model, further optimization is made in the above structure, and the four execution shafts are evenly arranged along the circumferential direction of the central axis.

[0012] In order to better realize the utility model, further optimization is made in the above structure. The gear box includes a box body and a box cover arranged on the box body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The new planetary gearbox for floor grinding machine provided by the utility model utilizes four active transition gears to wrap the active gear, two of which are used for transmission, and the other two do not transmit power but are only used to share part of the radial force, so that the structure has stability and the service life of the active transition gear can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the external structure of the planetary gearbox of the new floor grinding machine of the utility model;

[0017] Figure 2 This is one of the internal structure diagrams of the planetary gearbox of the new floor grinding machine of the utility model;

[0018] Figure 3 This is the second schematic diagram of the internal structure of the planetary gear box of the new floor grinding machine of the utility model.

[0019] In the figure:

[0020] 1-gearbox, 11-box body, 12-box cover, 2-center shaft, 3-executor shaft, 101-driving gear, 102-driving transition gear, 103-transmission gear, 104-center gear, 105-executor gear, 106-auxiliary gear, 201-deep groove ball bearing 1, 202-tapered roller bearing 1, 203-deep groove ball bearing 2, 204-tapered roller bearing 2. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] Please refer to Figure 1-Figure 3 The novel planetary gearbox for floor grinding machine provided by the utility model comprises a gearbox 1, a central shaft 2 vertically rotatably arranged in the gearbox 1, and four actuator shafts 3. The gearbox 1 comprises a housing 11 and a housing cover 12 arranged on the housing 11. In this embodiment, a central hole is provided at the top of the central shaft 2, which is connected to the output shaft of the motor through a key connection to transmit the original power. The four actuator shafts 3 are arranged around the central shaft 2, and the four actuator shafts 3 extend downward to the outside of the gearbox 1. The four actuator shafts 3 are evenly arranged along the circumferential direction of the central shaft 2, so that the power transmitted by the central shaft 2 can be evenly transmitted to the four actuator shafts 3.

[0025] A driving gear 101 is arranged on the central shaft 2, and the driving gear 101 is meshed and driven with four driving transition gears 102 arranged around it. The four driving transition gears 102 are evenly arranged along the circumferential direction of the driving gear 101. One group of two driving transition gears 102 arranged diagonally are coaxially driven with two transmission gears 103 respectively, and the transmission ratio can be changed for power transmission. Finally, the two transmission gears 103 drive two adjacent execution shafts 3 to rotate respectively. Another group of two driving transition gears 102 arranged diagonally do not transmit power. Compared with the use of only two gears for transmission, the additional two gears that do not participate in the transmission can be used to share part of the radial force, so that the structure has stability and the service life of the driving transition gear can be extended.

[0026] See Figure 3 A center tooth 104 is also rotatably provided on the center shaft 2, and the two transmission gears 103 are also respectively meshed with the center tooth 104. The meshing positions of the center tooth 104, the two execution shafts 3 and the single transmission gear 103 are in a triangular shape. The stability of the triangle can be used to make the transmission gear 103 subject to uniform radial force, thereby improving its structural strength.

[0027] The actuator shaft 3 is provided with an actuator gear 105 . The transmission gear 103 is meshed with one of the actuator gears 105 for transmission, and is meshed with the other actuator gear 105 for transmission via an auxiliary gear 106 .

[0028] Compared with other rotating shafts, the central shaft 2 and the actuator shaft 3 need to bear not only radial loads, but also certain axial loads. Therefore, a deep groove ball bearing 201 and a tapered roller bearing 202 are arranged on the central shaft 2; a deep groove ball bearing 203 and a tapered roller bearing 204 are arranged on the actuator shaft.

[0029] Working principle:

[0030] When working, the center shaft 2 first obtains the power source, and then the center shaft 2 transmits the power to the two transmission gears 103 through the two active transition gears 102. The two transmission gears 103 transmit the power to the execution gears 105 on the execution shaft 3, and finally drive the four execution shafts 3 to rotate. At the same time, during transmission, the center gear 104 and the other two active transition gears 102 do not participate in power transmission, and serve as a stabilizing mechanism to improve the stability and service life of the gearbox.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. New type of floor grinding machine planetary gearbox, characterized by: The invention comprises a gear box (1), a central shaft (2) vertically rotatably arranged in the gear box (1), and four execution shafts (3), wherein the four execution shafts (3) are arranged around the central shaft (2) and extend downward to the outside of the gear box (1), and a driving gear (101) is arranged on the central shaft (2), and the driving gear (101) is respectively meshed with four driving transition gears (102) arranged around the central shaft for transmission, wherein a group of two driving transition gears (102) arranged diagonally are respectively coaxially transmitted with two transmission gears (103), and the two transmission gears (103) respectively drive two adjacent execution shafts (3) to rotate.

2. The novel planetary gearbox for floor grinding machine according to claim 1 is characterized by: The central shaft (2) is also rotatably provided with a central tooth (104), and the two transmission gears (103) are also respectively meshed with the central tooth (104). The meshing positions of the central tooth (104), the two execution shafts (3) and the single transmission gear (103) are in a triangular shape.

3. The novel planetary gearbox for floor grinding machine according to claim 2 is characterized by: An execution gear (105) is arranged on the execution shaft (3); the transmission gear (103) meshes with one of the execution gears (105) for transmission, and meshes with the other execution gear (105) for transmission via an auxiliary gear (106).

4. The novel planetary gearbox for floor grinding machine according to claim 1 is characterized by: A deep groove ball bearing (201) and a tapered roller bearing (202) are arranged on the central shaft (2).

5. The novel planetary gearbox for floor grinding machine according to claim 4 is characterized by: The execution shaft (3) is provided with a second deep groove ball bearing (203) and a second tapered roller bearing (204).

6. The novel planetary gearbox for floor grinding machine according to claim 1 is characterized by: The four active transition gears (102) are evenly arranged along the circumferential direction of the active gear (101).

7. The novel planetary gearbox for floor grinding machine according to claim 1 is characterized by: The four execution axes (3) are evenly arranged along the circumferential direction of the central axis (2).

8. The novel planetary gearbox for floor grinding machine according to claim 1 is characterized by: The gear box (1) comprises a box body (11) and a box cover (12) arranged on the box body (11).

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