CN215806058U

CN215806058U - Gear box

Info

Publication number: CN215806058U
Application number: CN202121956332.9U
Authority: CN
Inventors: 包青春
Original assignee: Inner Mongolia Baoshi Machinery R & D Co ltd
Current assignee: Inner Mongolia Baoshi Machinery R & D Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-11
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a gearbox, which comprises a shell (1) and a transmission assembly (2), wherein the transmission assembly (2) comprises a supporting gear (21) and an output gear (22) which are meshed with each other, the shell (1) comprises a base (11) and an upper shell (12), a supporting shaft (13) is arranged in the middle of the base (11), the upper shell (12) is rotatably sleeved on the supporting shaft (13), a power receiving part (14) is fixedly arranged on the upper shell (12), the output gear (22) is rotatably arranged in the upper shell (12), and the supporting gear (21) is fixedly sleeved on the supporting shaft (13). The gear box can be applied to a coating mechanism and serves a coating process.

Description

Gear box

Technical Field

The present invention relates to a gear box having a housing and a transmission assembly.

Background

The film coating mechanism generally has a bundling function and a film coating function, and power for realizing the bundling function and the film coating function is transmitted by a transmission system in the film coating mechanism. Some prior art solutions utilize one gear as the power input and two other gears as the power output. It can be seen that this arrangement can only transmit power to the rollers used for baling but there is no additional output to transmit power to the wrapping apparatus. It can be seen that the function of the gearbox applied to the enveloping mechanism in the prior art is still insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gearbox.

In order to achieve the purpose of the utility model, the utility model provides a gear box, which comprises a shell and a transmission assembly, wherein the transmission assembly comprises a supporting gear and an output gear which are meshed with each other, the shell comprises a base and an upper shell, a supporting shaft is arranged in the middle of the base, the upper shell is rotatably sleeved on the supporting shaft, a power receiving part is fixedly arranged on the upper shell, the output gear is rotatably arranged in the upper shell, and the supporting gear is fixedly sleeved on the supporting shaft.

According to an aspect of the present invention, an end of the output gear remote from the support shaft has an output portion;

the output portion is supported in the upper case by a bearing with an axis perpendicular to an axis of the support shaft.

According to one aspect of the utility model, the power receiving member is a sprocket, gear or pulley;

the power receiving part is located the epitheca is close to the one end of base, and with epitheca integrated into one piece.

According to one aspect of the present invention, the support gear has a bearing mounting portion at an end thereof adjacent to the base, and the support gear is fixed to the support shaft by a key connection.

According to an aspect of the present invention, the upper case and the bearing mounting portion are connected by a bearing.

According to one aspect of the utility model, one side of the base, which is far away from the supporting shaft, is provided with first oil holes which extend into the supporting shaft and are arranged at intervals;

and second oil holes communicated with the first oil holes are formed in the side surface of the supporting shaft, and the second oil holes are arranged on the supporting shaft in an opposite and staggered mode.

According to one aspect of the utility model, the device further comprises an annular conversion sleeve sleeved on the supporting shaft;

the inner side of the conversion sleeve is coaxially provided with annular oil passages which are arranged at intervals along the axial direction of the supporting shaft;

the side surface of the conversion sleeve is provided with conversion oil holes which are oppositely arranged and communicated with the oil duct, and the conversion oil holes are provided with internal threads;

the inner side of the conversion sleeve is coaxially provided with annular sealing rings, and the sealing rings are arranged at intervals along the axial direction of the supporting shaft and are arranged with the oil duct in a staggered mode.

According to an aspect of the present invention, the upper housing is provided with third oil holes, which are arranged oppositely on the upper housing and are arranged alternately in the axial direction of the support shaft;

the third oil hole and the conversion oil hole are coaxial;

and an oil seal coaxial with the output gear is arranged at the end part of the upper shell far away from the supporting shaft.

According to an aspect of the present invention, further comprising a hollow through joint connected to the switching oil hole through the third oil hole;

an internal thread is arranged at one end of the straight joint, which is far away from the supporting shaft;

and a sealing ring is arranged between the straight-through joint and the upper shell.

According to one aspect of the utility model, the oil-saving device further comprises a sealing cover, wherein the sealing cover is fixed at one end of the upper shell, which is far away from the base, and a lubricating oil filling hole is formed at one end of the sealing cover, which is far away from the upper shell, wherein a pressure relief exhaust valve is screwed in the sealing cover;

and one side of the base, which is far away from the supporting shaft, is also provided with a lubricating oil drain hole which is obliquely arranged.

According to the concept of the utility model, the outer shell is divided into a base and an upper shell which can rotate on a supporting shaft of the base, the outer side of the upper shell is provided with a power receiving part, an output gear is rotatably arranged in the upper shell, the supporting shaft is fixedly provided with a supporting gear, and the output gear is meshed with the supporting gear. Thus, the upper shell can rotate around the supporting shaft by receiving external power, and the output gear is driven to rotate around the supporting shaft. Meanwhile, due to the existence of the supporting gear, the output gear can rotate, and therefore power is transmitted out of the gear box. Therefore, the output gear can transmit power to the roller in the coating equipment, and the coating equipment can be considered by the rotation of the upper shell, so that the function of the gear box is enriched.

According to one aspect of the utility model, the first oil hole is arranged at the lower side of the base, the second oil hole communicated with the first oil hole is arranged on the supporting shaft, and the third oil hole is arranged on the upper shell, so that the gear box can provide hydraulic oil for oil equipment in the mechanism.

According to one aspect of the present invention, a transition sleeve is sleeved on the support shaft, the transition sleeve has an oil passage through which hydraulic oil flows, and a transition oil hole is formed in a side surface of the transition sleeve and is communicated with the oil passage. Therefore, the oil can enter the conversion sleeve after flowing out of the second oil hole, and the oil can be turned.

Drawings

FIG. 1 schematically illustrates a cross-sectional view from a front perspective of a gearbox according to an embodiment of the present invention;

FIG. 2 is a schematic representation of a construction of a shift collar in a gearbox in accordance with an embodiment of the present invention;

FIG. 3 schematically illustrates a side view cross-sectional view of a gearbox according to an embodiment of the present invention;

FIG. 4 schematically illustrates a perspective view of a gearbox according to an embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.

The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.

Referring to fig. 1, the gear box of the present invention comprises a housing 1 and a transmission assembly 2, the transmission assembly 2 comprising a support gear 21 and an output gear 22 which mesh with each other. The housing 1 comprises a base 11 and an upper shell 12, wherein a supporting shaft 13 is arranged in the middle of the base 11, and the axis of the supporting shaft 13 is arranged basically perpendicular to the base 11. The upper shell 12 is rotatably fitted over the support shaft 13, and may be connected to the support shaft 13 at the bottom thereof through a bearing as shown in fig. 1, so as to be rotatable. The output gear 22 is rotatably disposed in the housing 1, and the support gear 21 is fixedly secured to the support shaft 13. In the present invention, the support gear 21 and the output gear 22 engaged therewith are both bevel gears. Thus, according to the concept of the present invention, the upper casing 12 is responsible for receiving the power input into the gear box, and the upper casing 12 can rotate around the supporting shaft 13 after receiving the input power, thereby driving the output gear 22 to rotate around the supporting shaft 13. Due to the existence of the support gear 21, the output gear 22 engaged therewith also rotates itself during rotation about the support shaft 13, thereby outputting power.

In order to enable the upper shell 12 to receive external power, the utility model is provided with a power receiving part 14 at one end of the upper shell 12 close to the base 11, so that power transmitted by a power source in the film wrapping mechanism can be received and input into the gear box. Of course, the gear box of the present invention is mainly applied to the film wrapping mechanism, and therefore, the chain wheel is selected as the power receiving part 14, so that the power of the chain transmission system in the film wrapping mechanism can be received. Of course, in other applications, other transmission members may be selected as the power receiving member 14, such as gears, pulleys, etc., depending on the type of power source. In this embodiment, the sprocket is integrally formed with the upper case 12, and other embodiments may alternatively be used to fix the sprocket to the upper case 12.

In the present invention, an end (i.e., the left end) of the output gear 22 remote from the support shaft 13 has an output portion 23, and the output portion 23 is supported in the upper case 12 through a bearing. Furthermore, the axis of the output part 23 (actually, the axis of the output gear 22) is perpendicular to the axis of the supporting shaft 13, so that the output gear 22 can rotate in the upper shell 12, and the output part 23 is also arranged so that the output gear 22 can be better rotated around the supporting shaft 13 by the upper shell 12. The upper casing 12 is provided with oil seals 122 at both ends remote from the support shaft 13, which are coaxial with the output gear 22, thereby forming a seal between the upper casing 12 and the output portion 23. Of course, in the present embodiment, the lower end of the support gear 21 further has a bearing mounting portion 26, and the support gear 21 is integrally fixed to the support shaft 13 by a key connection, and specifically, key grooves may be provided in the support gear 21 and the support shaft 13 and connected to each other by a flat key. Therefore, in this embodiment, the upper shell 12 is connected to the bearing mounting portion 26 through a bearing, so as to indirectly realize the rotatable sleeve on the supporting shaft 13.

In the present invention, the lower side of the base 11 is provided with first oil holes 131 extending to the inside of the support shaft 13 in the axial direction of the support shaft 13, and the first oil holes 131 are arranged at intervals (in the radial direction of the support shaft 13). Therefore, hydraulic oil can be introduced from the bottom of the base 11 for other mechanisms (such as an oil cylinder) of the film coating mechanism. Of course, the first oil hole 131 in the present invention is a long hole, and the length and position thereof can be set according to the requirement of the actual oil mechanism. In cooperation therewith, the side surface of the support shaft 13 is provided with second oil holes 132 communicating with the first oil holes 131, and the second oil holes 132 are arranged oppositely and alternately on the support shaft 13. In this embodiment, two first oil holes 131 are symmetrically arranged, two second oil holes 132 are correspondingly arranged, and the heights of the second oil holes 132 are different due to the staggered arrangement, so that the oil outlet positions of the whole gear box are staggered. Of course, the direction of the oil entering and exiting depends on the action of the oil using equipment (i.e. the oil cylinder) in the film coating mechanism, that is, one of the two first oil holes 131 is used for oil entering and the other is used for oil exiting in the present embodiment. Considering that the upper housing 12 may rotate, the oil outlet position of the upper housing 12 may not correspond to the second oil hole 132, and therefore the present invention further provides the switching sleeve 15 disposed on the supporting shaft 13 to divert the oil.

Referring to fig. 2, an annular oil passage 151 coaxial with the support shaft 13 is provided inside the shift collar 15, and the oil passages 151 are arranged at intervals in the axial direction of the support shaft 13. The number of the oil passages 151 should correspond to the number of the second oil holes 132, and therefore, in the present embodiment, two oil passages 15 are also provided. The side surface of the transition sleeve 15 is provided with transition oil holes 152 that are arranged oppositely and communicate with the oil passage 151. In the present embodiment, two switching oil holes 152 are provided in each oil passage 151 to be opposite to each other, so that the switching sleeve 15 has four oil passing positions. Of course, the position of the switching oil hole 152 is basically the final oil flowing position, so the specific arrangement number and position thereof can be selected according to the actual requirement of the oil using equipment in the coating mechanism. In addition, the inner side of the change-over sleeve 15 is coaxially provided with annular seal rings 153, and the seal rings 153 are arranged alternately in the axial direction of the support shaft 13 and are staggered with the oil passages 151, so that a good sealing function is formed.

Referring to fig. 3, since the above-mentioned structures and components for inputting and converting hydraulic oil are disposed inside the housing 1, the present invention further provides a third oil hole 121 in the upper casing 12 for the hydraulic oil inputted into the gear box to flow through. As can be seen from the above description, the third oil hole 121 is positioned to correspond to the switching oil hole 152 so as to receive the oil flowing therethrough. Therefore, the third oil holes 121 in the present invention are also arranged alternately in the axial direction of the support shaft 13, and are oppositely arranged on the upper casing 12. As such, the third oil hole 121 may be coaxial with the switching oil hole 152 to achieve communication.

With continued reference to fig. 3, the present invention further provides a through connector 16 for fixing the switching sleeve 15, which is fitted over the supporting shaft 13, to the upper case 12 from outside the housing 1 so that it can also rotate with the upper case 12. Specifically, the selected fixed position of the present invention is the switching oil hole 152 on the switching sleeve 15. Therefore, the conversion oil hole 152 is provided with internal threads, so that the through joint 16 can penetrate through the third oil hole 121 to be fixedly connected with the conversion oil hole 152, and the conversion sleeve 15 is mounted. Of course, the through joint 16 should be a hollow structure with both ends open so as not to obstruct the flow of the hydraulic oil in the switching oil hole 152. A sealing ring 17 is provided between the straight-through joint 16 and the upper shell 12, so that a good seal can be formed. In addition, the end of the through joint 16 away from the supporting shaft 13 is also provided with an internal thread, so that the connection with parts such as an oil pipeline in the film coating mechanism is convenient.

As can be seen from the above, the gear box of the present invention has a function of inputting hydraulic oil to the film coating mechanism system, and the hydraulic oil enters the support shaft 13 through the first oil hole 131, flows out of the support shaft 13 through the second oil hole 132 communicating with the first oil hole 131, and enters the shift collar 15. The hydraulic oil is circulated in the oil passage 151 of the transition sleeve 15 and then flows out of the transition oil hole 152. Since the present embodiment adopts the form in which the through joint 16 is attached to the shift collar 15, the oil flows out from the shift oil hole 152 and substantially flows out from the inside of the through joint 16 to the gear box, and the third oil hole 121 of the housing 1 only functions to allow the through joint 16 to pass through and indirectly fix the shift collar 15.

Referring to fig. 4, in order to improve the overall sealing performance of the gearbox, the utility model further provides a sealing cover 3, and the sealing cover 3 is fixed at one end of the upper shell 12 far away from the base 11, and can be fixedly connected with the upper shell 12 by using bolts. In addition, considering that the gear box of the present invention has the above function of transferring hydraulic oil, the present invention further provides a pressure relief and exhaust valve 4 at one end of the sealing cover 3 away from the upper shell 12, so as to release the air pressure inside the housing 1. In addition, the upper end of the sealing cover 3 is provided with a lubricating oil filling hole 31 (see fig. 1), the pressure relief exhaust valve 4 is installed therein in a threaded manner, and correspondingly, the lower side of the base 11 is further provided with a lubricating oil drain hole 111 (see fig. 1) which is obliquely arranged.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and it is apparent to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gear box, includes casing (1) and transmission assembly (2), transmission assembly (2) are including intermeshing's support gear (21) and output gear (22), its characterized in that, casing (1) is including base (11) and epitheca (12), base (11) middle part is equipped with supporting axle (13), the rotatable cover of epitheca (12) is established on supporting axle (13), the fixed power that is equipped with receives piece (14) on epitheca (12), the rotatable setting of output gear (22) is in epitheca (12), the fixed cover of support gear (21) is established on supporting axle (13).

2. Gearbox according to claim 1, in which the end of the output gear (22) remote from the bearing shaft (13) has an output (23);

the output section (23) is supported in the upper case (12) by a bearing with an axis perpendicular to the axis of the support shaft (13).

3. Gearbox according to claim 1, characterised in that the power receiving element (14) is a sprocket, gear or pulley;

the power receiving part (14) is located at one end, close to the base (11), of the upper shell (12) and is integrally formed with the upper shell (12).

4. Gearbox according to claim 1, characterised in that the end of the support gear (21) close to the base (11) has a bearing mounting (26), the support gear (21) being fixed to the support shaft (13) by means of a keyed connection.

5. Gearbox according to claim 4, characterised in that the upper shell (12) is bearing connected with the bearing mounting (26).

6. The gearbox according to claim 1, characterized in that the base (11) is provided with first oil holes (131) extending to the inside of the supporting shaft (13) and arranged at intervals on the side away from the supporting shaft (13);

the side surface of the supporting shaft (13) is provided with second oil holes (132) communicated with the first oil holes (131), and the second oil holes (132) are opposite and staggered on the supporting shaft (13).

7. Gearbox according to claim 6, characterised in that it further comprises an annular transition sleeve (15) fitted over said supporting shaft (13);

the inner side of the conversion sleeve (15) is coaxially provided with an annular oil duct (151), and the oil ducts (151) are arranged at intervals along the axial direction of the supporting shaft (13);

the side surface of the conversion sleeve (15) is provided with conversion oil holes (152) which are oppositely arranged and communicated with the oil passage (151), and the conversion oil holes (152) are provided with internal threads;

the inner side of the conversion sleeve (15) is coaxially provided with annular sealing rings (153), and the sealing rings (153) are arranged at intervals along the axial direction of the supporting shaft (13) and are arranged with the oil passages (151) in a staggered mode.

8. The gearbox according to claim 7, characterised in that the upper housing (12) is provided with third oil holes (121), the third oil holes (121) being arranged oppositely on the upper housing (12) and arranged alternately in the axial direction of the support shaft (13);

the third oil hole (121) and the conversion oil hole (152) are coaxial;

and an oil seal (122) coaxial with the output gear (22) is arranged at the end part of the upper shell (12) far away from the supporting shaft (13).

9. The gearbox according to claim 8, further comprising a hollow through joint (16), wherein the through joint (16) passes through the third oil hole (121) to connect with the transfer oil hole (152);

an internal thread is arranged at one end of the straight-through joint (16) far away from the supporting shaft (13);

a sealing ring (17) is arranged between the through joint (16) and the upper shell (12).

10. The gearbox according to the claim 1, characterized by further comprising a sealing cover (3), wherein the sealing cover (3) is fixed at one end of the upper shell (12) far away from the base (11), and one end of the sealing cover (3) far away from the upper shell (12) is provided with a lubricating oil filling hole (31) in which a pressure relief exhaust valve (4) is screwed;

and one side of the base (11) far away from the supporting shaft (13) is also provided with a lubricating oil drain hole (111) which is obliquely arranged.