WO2019242245A1

WO2019242245A1 - Transmission mechanism and joint structure having same

Info

Publication number: WO2019242245A1
Application number: PCT/CN2018/118965
Authority: WO
Inventors: 韩冰; 张文欣; 张天翼; 杨裕才; 閤栓; 张志波; 谢黎; 李威
Original assignee: 珠海格力智能装备有限公司; 珠海格力电器股份有限公司
Priority date: 2018-06-21
Filing date: 2018-12-03
Publication date: 2019-12-26
Also published as: CN108506424A

Abstract

A transmission mechanism and a joint structure having same. The transmission mechanism comprises a first bevel gear (10), a second bevel gear, and a pushing component (40); the first bevel gear (10) is engaged with the second bevel gear to transfer movement; the pushing component (40) abuts against the first bevel gear (10) and/or the second bevel gear, so as to adjust a fit clearance between the first bevel gear (10) and the second bevel gear. The joint structure comprises an assembly (70) and the transmission mechanism. The transmission structure and the joint structure having same resolve the problem in the prior art of abnormal transmission between a bevel gear and other transmission members.

Description

Transmission mechanism and joint structure with same

Technical field

The invention relates to a mechanical transmission, in particular to a transmission mechanism and a joint structure having the same.

Background technique

During the installation of the bevel gear transmission mechanism in the prior art, the installation gap between the bevel gear and other transmission parts cannot be accurately controlled, and the bevel gear transmits to both the axial and radial directions of the bevel gear during the transmission process. Acting force, long-term transmission is easy to cause the gap between the bevel gear and the transmission part to increase, causing abnormal cooperation, generating noise of different lengths, and excessive gaps are more likely to cause transmission failure. In the prior art, when adjusting the gap, The need to disassemble the reducer, flange and other components is time-consuming and labor-intensive.

Summary of the Invention

The main objective of the present invention is to provide a transmission mechanism and a joint structure having the same to solve the problem of abnormal transmission between the bevel gear and other transmission parts in the prior art.

In order to achieve the above object, according to an aspect of the present invention, a transmission mechanism is provided, including a first bevel gear, a second bevel gear, and a pushing member. The first bevel gear meshes with the second bevel gear to transmit motion; the pushing member and the The first bevel gear and / or the second bevel gear are abutted to adjust a fit clearance between the first bevel gear and the second bevel gear.

Further, the transmission mechanism further includes: a fixed seat, the fixed seat is disposed on one side of the first bevel gear, and the pushing member is located between the fixed seat and the first bevel gear to stop the pushing member.

Further, the pushing member is a spring, one end of the spring is in contact with the first bevel gear, and the other end of the spring is in contact with the fixing seat, so that the first bevel gear is pressed against the second bevel gear under the action of the pushing member.

Further, a pushing portion is provided on the first bevel gear, and a fixing portion is provided on the fixing seat. The pushing portion is opposite to the fixing portion. One end of the spring is in contact with the pushing portion, and the other end of the spring is in contact with the fixing portion.

Further, the transmission mechanism further includes a transmission shaft, the transmission shaft is drivingly connected with the first bevel gear to drive the first bevel gear to rotate, and the spring is sleeved on the transmission shaft.

Further, a first mounting cavity is provided at an end of the first bevel gear near the fixed seat, and a second mounting cavity is provided at an end of the fixed seat near the first bevel gear. The first mounting cavity and the second mounting cavity are docked to form a space for mounting. Positioning space of the spring.

Further, a limiting surface is provided on the transmission shaft, and an end surface of the fixed seat abuts the limiting surface to position the fixed seat.

According to another aspect of the present invention, a joint structure is provided, which includes an assembly body and a transmission mechanism. The transmission mechanism is mounted on the assembly body, and the transmission mechanism is the aforementioned transmission mechanism.

Further, the transmission mechanism is the above-mentioned transmission mechanism. The assembly has a first installation cavity for installing the first bevel gear and a second installation cavity for installing the second bevel gear. The joint structure further includes a bearing assembly. The drive shaft is connected to the assembly through a bearing assembly.

Further, the transmission mechanism is the aforementioned transmission mechanism. The bearing assembly includes a first bearing group and a second bearing group. Both the first bearing group and the second bearing group are sleeved on the transmission shaft, and the first bearing group is disposed on the first cone. The side of the gear away from the fixed seat of the transmission mechanism, and the second bearing group is disposed on the side of the fixed seat of the transmission mechanism away from the first bevel gear.

The transmission mechanism to which the technical solution of the present invention is applied includes a first bevel gear, a second bevel gear, and a pushing member. The pushing member is drivingly connected to the first bevel gear or the second bevel gear, or is connected to both the first bevel gear and the second bevel gear. It is connected to push the first bevel gear and the second bevel gear to maintain close cooperation, so as to solve the problem of abnormal transmission caused by the incomplete cooperation between the bevel gear and other transmission parts in the prior art.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which form a part of this application, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and the descriptions thereof are used to explain the present invention, and do not constitute an improper limitation on the present invention. In the drawings:

FIG. 1 shows a front sectional view of an embodiment of a joint structure according to the present invention; and

Fig. 2 shows a sectional side view of an embodiment of a joint structure according to the present invention.

The above drawings include the following reference signs:

10. First bevel gear; 30. Fixed seat; 40. Pushing component; 50. Transmission shaft; 51. Limit surface; 61. First bearing group; 62. Second bearing group; 70. Assembly.

detailed description

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and embodiments.

The present invention provides a transmission mechanism. Please refer to FIG. 1 and FIG. 2. The transmission mechanism includes: a first bevel gear 10 and a second bevel gear. The first bevel gear 10 meshes with the second bevel gear to transmit motion. The pushing member 40 includes a pushing member 40 that abuts against the first bevel gear 10 and / or the second bevel gear to adjust the fit clearance between the first bevel gear 10 and the second bevel gear.

The transmission mechanism in the present invention includes a first bevel gear 10, a second bevel gear, and a pushing member 40. The pushing member 40 is drivingly connected to the first bevel gear 10 or the second bevel gear, or is connected to the first bevel gear 10 and the second bevel The gears are all connected to push the first bevel gear 10 and the second bevel gear to keep close cooperation, so as to solve the problem of abnormal transmission caused by the incomplete cooperation between the bevel gear and other transmission parts in the prior art.

The transmission mechanism further includes a fixing base 30, which is disposed on one side of the first bevel gear 10, and the pushing member 40 is located between the fixing base 30 and the first bevel gear 10 to stop the pushing member 40.

As shown in FIG. 1, the transmission mechanism in this embodiment further includes a fixing base 30, and the pushing member 40 is disposed on the fixing base 30 to push the first bevel gear 10.

The pushing member 40 is a spring. One end of the spring is in contact with the first bevel gear 10, and the other end of the spring is in contact with the fixing seat 30, so that the first bevel gear 10 is pressed against the second bevel gear by the pushing member 40. on.

As shown in FIG. 1, the pushing member 40 in this embodiment uses a spring. The spring is in a compressed state. One end is in contact with the first bevel gear 10 and the other end is connected with the fixing seat 30. The spring gives the first bevel gear 10 a direction. The force of the second driving wheel causes the first bevel gear to closely fit the second bevel gear.

The first bevel gear 10 is provided with a pushing portion, and the fixing base 30 is provided with a fixing portion. The pushing portion is opposite to the fixing portion. One end of the spring is in contact with the pushing portion, and the other end of the spring is in contact with the fixing portion.

As shown in FIG. 1, in this embodiment, the first bevel gear 10 is provided with a pushing portion that abuts the pushing member 40, and the fixing seat 30 is provided with a fixing portion for fixing the pushing member 40, the pushing portion and the fixing portion. They are respectively provided on both sides of the pushing member 40.

The transmission mechanism further includes a transmission shaft 50. The transmission shaft 50 is drivingly connected to the first bevel gear 10 to drive the first bevel gear 10 to rotate. The spring is sleeved on the transmission shaft 50.

As shown in FIG. 1, the transmission mechanism in this embodiment is further provided with a transmission shaft 50. The transmission shaft 50 is penetrated inside the first bevel gear 10, and the transmission shaft 50 and the first bevel gear 10 are driven by a key. The spring is also sleeved on the transmission shaft 50.

The first bevel gear 10 is provided with a first mounting cavity at one end near the fixed base 30, and the second bevel gear 10 is provided with a second mounting cavity at one end thereof. Space for mounting springs.

As shown in FIG. 1, in this embodiment, in order to set a spring, a first mounting cavity is provided on an inner wall of one end of the first bevel gear 10 near the fixed seat 30, and an inner side of one end of the fixed seat 30 near the first bevel gear 10 is provided. There is a second mounting cavity. The first mounting cavity and the second mounting cavity are docked and communicate with each other to form a positioning space for accommodating the spring.

The transmission shaft 50 is provided with a limiting surface 51, and an end surface of the fixed base 30 abuts the limiting surface 51 to position the fixed base 30.

As shown in FIG. 1, the transmission shaft 50 in this embodiment is a stepped shaft. The stepped shaft is divided into a first stepped shaft and a second stepped shaft. One end of the fixed seat 30 abuts between the first stepped shaft and the second stepped shaft. On the steps, the first stepped shaft is used to install the fixed seat 30, the spring, the first bevel gear 10 and the first bearing group 61, and the second stepped shaft is used to limit the fixed seat and install the second bearing group.

The present invention also provides a joint structure including an assembly body 70 and a transmission mechanism, and the transmission mechanism is the above-mentioned transmission mechanism.

As shown in FIG. 1, the joint structure in the present invention includes a transmission mechanism and an assembly body 70 for installing and cooperating with the transmission mechanism. The joint structure is used to connect two robot arms, and one end of the assembly body 70 is connected to one robot arm. One end and the other end of the 70 are connected to another robot arm, and the joint structure realizes the transmission connection between the two robot arms.

The assembly 70 has a first mounting cavity for mounting the first bevel gear 10 and a second mounting cavity for mounting the second bevel gear. The joint structure further includes a bearing assembly, and the transmission shaft 50 is connected to the assembly 70 through the bearing assembly.

As shown in FIG. 1, the assembly 70 in this embodiment is provided with a first mounting cavity and a second mounting cavity. The two mounting cavities are perpendicular to each other and are used to mount the first bevel gear 10 and the second bevel gear, respectively.

The bearing assembly includes a first bearing group 61 and a second bearing group 62. The first bearing group 61 is disposed on the transmission shaft 50 on the side of the first bevel gear 10 away from the fixed seat 30, and the second bearing group 62 is disposed away from the fixed seat 30. The first bevel gear 10 is on a transmission shaft 50.

As shown in FIG. 1, the transmission mechanism in this embodiment is connected to the assembly 70 through a bearing assembly. The bearing assembly includes a first bearing group 61 and a second bearing group 62. The first bearing group 61 and the second bearing group 62 are respectively provided. On the transmission shafts on both sides of the combination of the first bevel gear 10 and the fixing base 30, there is a gap between the first bevel gear 10 and the assembly 70.

From the above description, it can be seen that the foregoing embodiments of the present invention achieve the following technical effects:

It should be noted that the terminology used herein is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should also be understood that when the terms "including" and / or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and / or combinations thereof.

The relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods, and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but where appropriate, the techniques, methods, and equipment should be considered as part of the authorization specification. In all examples shown and discussed herein, any specific value should be construed as exemplary only and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

In the description of the present invention, it should be understood that the azimuths such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal", "top, bottom" and the like indicate the orientation Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description. Unless stated to the contrary, these orientation words do not indicate and imply the device or element referred to. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the scope of protection of the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For the convenience of description, spatially relative terms such as "above", "above", "above", "above", etc. can be used here to describe as shown in the figure Shows the spatial relationship between one device or feature and other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device as described in the figures. For example, if a device in the drawing is turned over, devices described as "above" or "above" other devices or constructions will be positioned "below the other devices or structures" or "below" Other devices or constructs. " Thus, the exemplary term "above" may include both directions "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or at other orientations), and the relative description of space used here is explained accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to limit parts is only for the convenience of distinguishing the corresponding parts. Unless otherwise stated, the above words have no special meaning and cannot be understood. To limit the scope of protection of the present invention.

The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

A transmission mechanism, comprising:

A first bevel gear (10) and a second bevel gear, the first bevel gear (10) meshing with the second bevel gear to transmit motion;

A pushing member (40), which is in contact with the first bevel gear (10) and / or the second bevel gear to adjust the first bevel gear (10) and the first bevel gear (10) Matching clearance between two bevel gears.
The transmission mechanism according to claim 1, wherein the transmission mechanism further comprises:

A fixed base (30), the fixed base (30) is disposed on one side of the first bevel gear (10), the pushing member (40) is located on the fixed base (30) and the first bevel gear (10) ) To stop the pushing member (40).
The transmission mechanism according to claim 2, wherein the pushing member (40) is a spring, one end of the spring is in contact with the first bevel gear (10), and the other end of the spring is in contact with the first bevel gear (10). The fixed seat (30) abuts, so that the first bevel gear (10) is pressed against the second bevel gear by the pushing member (40).
The transmission mechanism according to claim 3, wherein a pushing portion is provided on the first bevel gear (10), a fixing portion is provided on the fixing seat (30), and the pushing portion and the fixing The springs are opposed to each other, and one end of the spring is in contact with the pushing portion, and the other end of the spring is in contact with the fixed portion.
The transmission mechanism according to claim 3, wherein the transmission mechanism further comprises a transmission shaft (50), and the transmission shaft (50) is drivingly connected with the first bevel gear (10) to drive the The first bevel gear (10) rotates, and the spring is sleeved on the transmission shaft (50).
The transmission mechanism according to claim 3, characterized in that a first mounting cavity is provided at an end of the first bevel gear (10) near the fixed base (30), and the fixed base (30) is close to the fixed base One end of the first bevel gear (10) is provided with a second mounting cavity, and the first mounting cavity and the second mounting cavity are docked to form a positioning space for mounting the spring.
The transmission mechanism according to claim 5, characterized in that the transmission shaft (50) is provided with a limiting surface (51), and an end surface of the fixed seat (30) is in contact with the limiting surface (51) To position the fixing base (30).
A joint structure includes an assembly body (70) and a transmission mechanism, and the transmission mechanism is mounted on the assembly body (70), characterized in that the transmission mechanism is any one of claims 1 to 7. Transmission mechanism.
The joint structure according to claim 8, wherein the transmission mechanism is the transmission mechanism described in claim 5, and the assembly (70) has a mechanism for mounting the first bevel gear (10). A first mounting cavity and a second mounting cavity for mounting the second bevel gear, the joint structure further includes a bearing assembly, and a transmission shaft (50) of the transmission mechanism passes through the bearing assembly and the assembly ( 70) Connect.
The joint structure according to claim 9, wherein the transmission mechanism is the transmission mechanism described in claim 5, and the bearing assembly includes a first bearing group (61) and a second bearing group (62), The first bearing group (61) and the second bearing group (62) are sleeved on the transmission shaft (50), and the first bearing group (61) is arranged on a first bevel gear (10) The side far from the fixed seat (30) of the transmission mechanism, and the second bearing group (62) is disposed on the side of the fixed seat (30) of the transmission mechanism, which is far from the first bevel gear (10).