CN105422743A - Transmission device in double-shaft output feeding gear reducer of numerically-controlled machine tool - Google Patents
Transmission device in double-shaft output feeding gear reducer of numerically-controlled machine tool Download PDFInfo
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- CN105422743A CN105422743A CN201511004649.1A CN201511004649A CN105422743A CN 105422743 A CN105422743 A CN 105422743A CN 201511004649 A CN201511004649 A CN 201511004649A CN 105422743 A CN105422743 A CN 105422743A
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- bevel gear
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 239000003638 chemical reducing agent Substances 0.000 title description 2
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000005489 elastic deformation Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/12—Mechanical drives with means for varying the speed ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
本发明公开一种数控机床双轴输出供给齿轮减速箱中的传动装置，包括传动轴，其上沿轴向依次设置的第一双联齿轮、组合齿轮和第二双联齿轮；第一双联齿轮包括第一锥齿轮和第一斜齿轮；第二双联齿轮通过平键与传动轴连接，其包括第二锥齿轮和第二斜齿轮；组合齿轮包括轴套、齿圈和两第三锥齿轮，轴套可转动套装在传动轴上，各第三锥齿轮可转动套装在安装轴上并与第一锥齿轮及第二锥齿轮啮合，安装轴上固定有调整块，齿圈套在两第三锥齿轮外部，并与轴套固定连接，第一锥齿轮、第二锥齿轮和第三锥齿轮的齿数及模数均相等。本发明的结构合理，能有效避免双轴输出供给系统中因输出齿轮和进给齿条的制造误差而导致输出齿轮弹性形变过大和断齿的问题。
The invention discloses a transmission device in a double-shaft output supply gear reduction box of a numerical control machine tool, which includes a transmission shaft on which a first double gear, a combination gear and a second double gear are arranged in sequence along the axial direction; the first double gear The gears include the first bevel gear and the first helical gear; the second duplex gear is connected with the transmission shaft through a flat key, which includes the second bevel gear and the second helical gear; the combined gear includes a bushing, a ring gear and two third bevels The gear, the sleeve can be rotatably set on the transmission shaft, the third bevel gear can be rotatably set on the installation shaft and meshed with the first bevel gear and the second bevel gear, the adjustment block is fixed on the installation shaft, and the ring gear is set on the two second bevel gears. The outside of the three bevel gears is fixedly connected with the shaft sleeve. The number of teeth and modules of the first bevel gear, the second bevel gear and the third bevel gear are equal. The invention has a reasonable structure and can effectively avoid the problems of excessive elastic deformation of the output gear and broken teeth caused by manufacturing errors of the output gear and the feed rack in the biaxial output supply system.
Description
技术领域technical field
本发明涉及一种传动装置，属于数控机床双轴输出供给系统中齿轮减速箱结构设计领域。The invention relates to a transmission device, which belongs to the field of structural design of a gear reduction box in a double-axis output supply system of a numerical control machine tool.
背景技术Background technique
本案申请人在专利号为ZL201320101552.2的实用新型专利文献中公开了一种数控龙门镗铣床的双输出轴进给结构，包括进给齿条和设置在所述进给齿条上方的进给齿轮箱，所述的进给齿轮箱内设有同步转动的输出轴一和输出轴二，所述的输出轴一和所述输出轴二上分别设有齿轮一和齿轮二，所述的齿轮一和齿轮二均与所述进给齿条啮合。上述专利文献中通过在一套进给齿轮箱中设置两根输出轴，两根输出轴上的齿轮同时与进给齿条啮合传动，传动力由两根输出轴共同承担，采用上述方案能够保证齿条平稳传动，并增大进给齿条的扭矩，然而本案发明人在后续实践中发现如下问题：由于输出齿轮、进给齿条存在制造误差，这会引起输出齿轮与进给齿条的两啮合点间距不断变化，而两根输出轴轴心线间距是固定不变的，这会引起过大的弹性变形，甚至引起断齿，因此现有技术中的数控机床的双输出轴进给系统的结构仍需改进。The applicant of this case disclosed a double output shaft feed structure of a CNC gantry boring and milling machine in the utility model patent document with the patent number ZL201320101552.2, including a feed rack and a feed rack arranged above the feed rack. Gear box, the described feed gear box is provided with synchronously rotating output shaft 1 and output shaft 2, said output shaft 1 and said output shaft 2 are provided with gear 1 and gear 2 respectively, and said gear One and two gears are in mesh with the feed rack. In the above patent document, two output shafts are set in a set of feed gear box, and the gears on the two output shafts mesh with the feed rack for transmission at the same time, and the transmission force is shared by the two output shafts. The above scheme can ensure The rack drives smoothly and increases the torque of the feed rack. However, the inventor of this case found the following problems in subsequent practice: due to the manufacturing error of the output gear and the feed rack, this will cause the output gear and the feed rack. The distance between the two meshing points is constantly changing, while the distance between the axis centers of the two output shafts is fixed, which will cause excessive elastic deformation, and even cause broken teeth. Therefore, the dual output shaft feed of the CNC machine tool in the prior art The structure of the system still needs improvement.
发明内容Contents of the invention
对此，本发明所要解决的技术问题是现有双轴输出供给系统中因输出齿轮与进给齿条的制造误差而容易导致输出齿轮弹性形变过大，甚至引起断齿的问题，从而提供一种结构合理的数控机床双轴输出供给齿轮减速箱中的传动装置，能有效避免发生因输出齿轮和进给齿条的制造误差而导致输出齿轮弹性形变过大和断齿的问题。In this regard, the technical problem to be solved by the present invention is that in the existing dual-shaft output supply system, due to the manufacturing error of the output gear and the feed rack, it is easy to cause the elastic deformation of the output gear to be too large, and even cause the problem of broken teeth, so as to provide a A well-structured transmission device in the dual-axis output supply gear reducer of a CNC machine tool can effectively avoid the problems of excessive elastic deformation of the output gear and broken teeth caused by manufacturing errors of the output gear and the feed rack.
实现本发明目的的技术方案是：The technical scheme that realizes the object of the present invention is:
一种数控机床双轴输出供给齿轮减速箱中的传动装置，包括传动轴，所述传动轴的两端装有轴承，所述传动轴上沿轴向依次设有第一双联齿轮、组合齿轮和第二双联齿轮；所述第一双联齿轮可转动套装在所述传动轴上，其包括靠近所述组合齿轮设置的第一锥齿轮和远离所述组合齿轮设置的第一斜齿轮；所述第二双联齿轮通过平键与所述传动轴固定连接，其包括靠近所述组合齿轮设置的第二锥齿轮和远离所述组合齿轮设置的第二斜齿轮；所述组合齿轮包括轴套、齿圈和两相对设置的第三锥齿轮，所述轴套可转动套装在所述传动轴上，所述各第三锥齿轮可转动套装在所述轴套的沿径向向外延伸的安装轴上并与所述第一锥齿轮及所述第二锥齿轮啮合，所述安装轴上固定有用于轴向限位所述第三锥齿轮的调整块，所述齿圈套在两第三锥齿轮外部，并与所述轴套固定连接，所述第一锥齿轮、所述第二锥齿轮和所述第三锥齿轮的齿数及模数均相等。A kind of transmission device in the dual-axis output supply gear reduction box of a CNC machine tool, including a transmission shaft, bearings are installed at both ends of the transmission shaft, and a first double gear and a combined gear are sequentially arranged on the transmission shaft along the axial direction and the second double gear; the first double gear is rotatably sleeved on the transmission shaft, which includes a first bevel gear arranged close to the combined gear and a first helical gear set away from the combined gear; The second double gear is fixedly connected with the transmission shaft through a flat key, and it includes a second bevel gear arranged close to the combined gear and a second helical gear arranged away from the combined gear; the combined gear includes a shaft A sleeve, a ring gear and two opposite third bevel gears, the sleeves are rotatably fitted on the transmission shaft, and each of the third bevel gears is rotatably fitted on the shaft sleeves extending radially outwards On the installation shaft of the first bevel gear and the second bevel gear, the adjustment block for axially limiting the third bevel gear is fixed on the installation shaft, and the ring gear is sleeved on the two second bevel gears. The outside of the three bevel gears is fixedly connected with the bushing, and the number of teeth and modules of the first bevel gear, the second bevel gear and the third bevel gear are equal.
上述技术方案中，所述齿圈通过四个螺钉与所述轴套固定连接。In the above technical solution, the ring gear is fixedly connected to the shaft sleeve through four screws.
本发明具有积极的效果：本发明的传动装置安装于双轴输出供给齿轮减速箱时，上级齿轮与所述齿圈啮合，所述第一双联齿轮中的所述第一斜齿轮和所述第二双联齿轮中的第二斜齿轮分别与带动两输出轴(输出齿轮安装在其上)转动的下级齿轮啮合，齿轮减速箱在运行时，上级齿轮转动带动所述齿圈转动，所述齿圈转动时带动所述轴套转动进而带动所述轴套上的两第三锥齿轮转动，再进而带动所述第一双联齿轮和所述第二双联齿轮转动，所述第一双联齿轮和所述第二双联齿轮再分别将转动传至下级齿轮。在实际工作状况下，由于所述输出齿轮、进给齿条有制造误差，造成双轴输出系统的两根输出轴上的斜齿轮将受到来自进给齿条的不同反作用力，不同反作用力经过传递，最终会传至组合齿轮的两第三锥齿轮上，而两第三锥齿轮在受到不同反作用力的作用时，会发生适量自转，第一双联齿轮和第二双联齿轮中受力大的一个的转速将会变慢，而受力小的一个的转速相对变快，直到达到新的力平衡，最终使得两根输出齿轴的转速形成细微的差别，从而解决背景技术中提到的现有进给系统所不能解决的进给齿条误差累积造成输出齿轮弹性形变过大和断齿的问题。The present invention has a positive effect: when the transmission device of the present invention is installed in the double-shaft output supply gear reduction box, the upper gear meshes with the ring gear, and the first helical gear in the first dual gear and the The second helical gear in the second duplex gear meshes with the lower gear that drives the two output shafts (on which the output gear is installed) to rotate respectively. When the gear reduction box is in operation, the rotation of the upper gear drives the ring gear to rotate, and the When the ring gear rotates, it drives the shaft sleeve to rotate, and then drives the two third bevel gears on the shaft sleeve to rotate, and then drives the first double gear and the second double gear to rotate. The joint gear and the second double joint gear transmit the rotation to the lower stage gear respectively. In actual working conditions, due to the manufacturing error of the output gear and the feed rack, the helical gears on the two output shafts of the dual-axis output system will receive different reaction forces from the feed rack, and the different reaction forces pass through The transmission will eventually be transmitted to the two third bevel gears of the combination gear, and when the two third bevel gears are subjected to different reaction forces, they will have a proper amount of rotation, and the first double gear and the second double gear will be stressed The rotation speed of the larger one will be slower, while the rotation speed of the smaller one will be relatively faster, until a new force balance is reached, and finally the rotation speeds of the two output gear shafts will form a slight difference, thereby solving the problem mentioned in the background art. The existing feed system cannot solve the problem of excessive elastic deformation of the output gear and broken teeth due to the accumulation of feed rack errors.
附图说明Description of drawings
图1为本发明中传动装置的正向视图；Fig. 1 is the front view of transmission device among the present invention;
图2为图1所示传动装置沿A-A线剖切时的剖视图；Fig. 2 is a cross-sectional view of the transmission device shown in Fig. 1 when cut along line A-A;
图3为图1所示传动装置的俯视图；Fig. 3 is a top view of the transmission device shown in Fig. 1;
图4为图3所示传动装置沿B-B线剖切时的剖视图；Fig. 4 is a sectional view when the transmission shown in Fig. 3 is cut along the B-B line;
图5为本发明的传动装置去掉齿圈和轴套后的结构示意图；Fig. 5 is the schematic diagram of the structure of the transmission device of the present invention after removing the ring gear and the axle sleeve;
图6为图1所示传动装置中轴套的结构示意图。FIG. 6 is a schematic structural diagram of a shaft sleeve in the transmission device shown in FIG. 1 .
图中所示附图标记为：1-传动轴；2-第一双联齿轮；21-第一锥齿轮；22-第一斜齿轮；3-第二双联齿轮；31-第二锥齿轮；32-第二斜齿轮；4-轴套；41-安装轴；5-齿圈；6-第三锥齿轮；7-调整块。The reference signs shown in the figure are: 1-transmission shaft; 2-first double gear; 21-first bevel gear; 22-first helical gear; 3-second double gear; 31-second bevel gear ; 32-the second helical gear; 4-shaft sleeve; 41-installation shaft; 5-ring gear;
具体实施方式detailed description
下面结合说明书附图对本发明中传动装置的具体结构做以说明：Below in conjunction with accompanying drawing, the specific structure of transmission device in the present invention is described:
一种数控机床双轴输出供给齿轮减速箱中的传动装置，如图1至图6所示，其包括传动轴1，所述传动轴1的两端装有轴承，所述传动轴1上沿轴向依次设有第一双联齿轮2、组合齿轮和第二双联齿轮3；所述第一双联齿轮2可转动套装在所述传动轴1上，其包括靠近所述组合齿轮设置的第一锥齿轮21和远离所述组合齿轮设置的第一斜齿轮22；所述第二双联齿轮3通过平键与所述传动轴1固定连接，所述第二双联齿轮3包括靠近所述组合齿轮设置的第二锥齿轮31和远离所述组合齿轮设置的第二斜齿轮32；所述组合齿轮包括轴套4、齿圈5和两相对设置的第三锥齿轮6，所述轴套4可转动套装在所述传动轴1上，所述各第三锥齿轮6可转动套装在所述轴套4的沿径向向外延伸的安装轴41上并与所述第一锥齿轮21及所述第二锥齿轮31啮合，所述安装轴41端部固定有用于轴向限位所述第三锥齿轮6的调整块7，所述齿圈5套在两第三锥齿轮6外部，并与所述轴套4固定连接，所述第一锥齿轮21、所述第二锥齿轮31和所述第三锥齿轮6的齿数及模数均相等，以保证组合齿轮、第一双联齿轮2和第二双联齿轮3以相同的转速转动。本实施例的传动装置安装于双轴输出供给齿轮减速箱时，上级齿轮与所述齿圈啮合，所述第一双联齿轮2中的所述第一斜齿轮22和所述第二双联齿轮3中的第二斜齿轮32分别与带动两输出轴(输出齿轮安装在其上)转动的下级齿轮啮合，上级齿轮与下级齿轮设于齿轮减速箱内，为现有的齿轮组结构，此处对其结构不做赘述，齿轮减速箱在运行时，上级齿轮转动带动所述齿圈5转动，所述齿圈5转动时带动所述轴套4转动进而带动所述轴套4上的两第三锥齿轮6转动，再进而带动所述第一双联齿轮2和所述第二双联齿轮3转动，所述第一双联齿轮2和所述第二双联齿轮3再分别将转动传至下级齿轮。在实际工作状况下，由于所述输出齿轮、进给齿条有制造误差，造成双轴输出系统的两根输出轴上的斜齿轮将受到来自进给齿条的不同反作用力，不同反作用力经过传递，最终会传至组合齿轮的两第三锥齿轮6上，而两第三锥齿轮6在受到不同反作用力的作用时，会发生适量自转，第一双联齿轮2和第二双联齿轮3中受力大的一个的转速将会变慢，而受力小的一个的转速相对变快，直到达到新的力平衡，最终使得两根输出齿轴的转速形成细微的差别，从而解决背景技术中提到的现有进给系统所不能解决的进给齿条误差累积造成输出齿轮弹性形变过大和断齿的问题。A kind of transmission device in the dual-axis output supply gear reduction box of a numerical control machine tool, as shown in Figure 1 to Figure 6, it includes a transmission shaft 1, the two ends of the transmission shaft 1 are equipped with bearings, and the upper edge of the transmission shaft 1 A first double gear 2, a combination gear and a second double gear 3 are arranged in sequence in the axial direction; the first double gear 2 is rotatably sleeved on the transmission shaft 1, which includes a The first bevel gear 21 and the first helical gear 22 arranged away from the combined gear; the second double gear 3 is fixedly connected with the transmission shaft 1 through a flat key, and the second double gear 3 includes The second bevel gear 31 provided by the combined gear and the second helical gear 32 arranged away from the combined gear; the combined gear includes a shaft sleeve 4, a ring gear 5 and two oppositely arranged third bevel gears 6, The sleeve 4 is rotatably set on the transmission shaft 1, and each of the third bevel gears 6 is rotatably set on the radially outwardly extending installation shaft 41 of the sleeve 4 and connected with the first bevel gear 21 meshes with the second bevel gear 31, the end of the installation shaft 41 is fixed with an adjustment block 7 for axially limiting the third bevel gear 6, and the ring gear 5 is sleeved on the two third bevel gears 6 outside, and is fixedly connected with the shaft sleeve 4, the number of teeth and modules of the first bevel gear 21, the second bevel gear 31 and the third bevel gear 6 are equal to ensure that the combination gear, the first bevel gear The dual gear 2 and the second dual gear 3 rotate at the same rotational speed. When the transmission device of this embodiment is installed in the double-shaft output supply gear reduction box, the upper gear meshes with the ring gear, and the first helical gear 22 in the first double-link gear 2 and the second double-link gear The second helical gear 32 in the gear 3 meshes with the lower gear that drives the two output shafts (on which the output gear is installed) to rotate respectively. The upper gear and the lower gear are arranged in the gear reduction box, which is an existing gear set structure. The structure will not be described in detail here. When the gear reduction box is running, the upper gear rotates to drive the ring gear 5 to rotate. The third bevel gear 6 rotates, and then drives the first double gear 2 and the second double gear 3 to rotate, and the first double gear 2 and the second double gear 3 will rotate respectively to the lower gear. In actual working conditions, due to the manufacturing error of the output gear and the feed rack, the helical gears on the two output shafts of the dual-axis output system will receive different reaction forces from the feed rack, and the different reaction forces pass through The transmission will eventually be transmitted to the two third bevel gears 6 of the combined gear, and when the two third bevel gears 6 are subjected to different reaction forces, they will have a proper amount of rotation, the first double gear 2 and the second double gear The rotation speed of the one with the larger force among the 3 will be slower, while the rotation speed of the one with the smaller force will be relatively faster until a new force balance is reached, and finally the rotation speed of the two output gear shafts will form a slight difference, thereby solving the background The existing feed system mentioned in the technology cannot solve the problem of excessive elastic deformation of the output gear and broken teeth caused by the accumulation of feed rack errors.
本实施例中，所述齿圈5通过四个螺钉与所述轴套4固定连接；进一步，为了增加系统运行可靠性，所述齿圈5与轴套4之间除了螺钉连接之外，还在两者之间设置平键(图中未示出)，以传递扭矩。In this embodiment, the ring gear 5 is fixedly connected to the shaft sleeve 4 through four screws; further, in order to increase the reliability of the system operation, in addition to the screw connection between the ring gear 5 and the shaft sleeve 4, there is also A flat key (not shown) is set between the two to transmit torque.
再进一步，本实施例中的轴套4如图6所示，所述轴套4中心位置成型有圆形套孔42，所述轴套4上成型有两个沿径向向外延伸的所述安装轴41，两个安装轴41呈圆柱状，且关于所述圆形套孔42中轴线中心对称设置，所述安装轴41的外端面上成型有第一螺孔43。本实施例的轴套在安装时，将轴套4套接在传动轴1上，并将两个第三锥齿轮6分别套装在两个安装轴41上，通过螺丝与第一螺孔43配合将轴套4、齿圈5及调整块7固定连接，其结构简化合理，具有很好的使用效果。Further, the shaft sleeve 4 in this embodiment is shown in Figure 6, a circular sleeve hole 42 is formed at the center of the shaft sleeve 4, and two radially outwardly extending holes are formed on the shaft sleeve 4. The two installation shafts 41 are cylindrical and arranged symmetrically with respect to the central axis of the circular sleeve hole 42 . A first screw hole 43 is formed on the outer end surface of the installation shaft 41 . When installing the shaft sleeve of this embodiment, the shaft sleeve 4 is sleeved on the transmission shaft 1, and the two third bevel gears 6 are respectively sleeved on the two installation shafts 41, and are matched with the first screw holes 43 by screws. The shaft sleeve 4, the ring gear 5 and the adjustment block 7 are fixedly connected, and the structure is simplified and reasonable, and has a good use effect.
本实施例中的所述轴套41上还成型有沿径向向外延伸的固定轴44，所述固定轴44的轴线方向与所述安装轴41的轴线方向垂直，所述固定轴44的外端面上成型有第二螺孔45，通过螺丝与第二螺孔45配合能够使齿圈5与轴套4固定连接更为牢靠。The shaft sleeve 41 in this embodiment is also formed with a fixed shaft 44 extending radially outwards, the axial direction of the fixed shaft 44 is perpendicular to the axial direction of the installation shaft 41, and the fixed shaft 44 A second screw hole 45 is formed on the outer end surface, and the ring gear 5 and the shaft sleeve 4 can be fixedly connected more firmly by cooperating with the second screw hole 45 .
再进一步，所述固定轴44的数量为两个，且关于所述圆形套孔42轴线中心对称设置，具体参看图6。Furthermore, the number of the fixed shafts 44 is two, and they are arranged symmetrically with respect to the axis of the circular sleeve hole 42 , see FIG. 6 for details.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的实质精神所引申出的显而易见的变化或变动仍属于本发明的保护范围。Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived from the essential spirit of the present invention still belong to the protection scope of the present invention.
Claims (2)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111963658A (en) * | 2020-07-21 | 2020-11-20 | 江苏国茂减速机股份有限公司 | Noise control noise insulation and have its speed reducer |
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| WO1994015114A1 (en) * | 1992-12-23 | 1994-07-07 | Asea Brown Boveri Ab | Compact gear |
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| CN111963658B (en) * | 2020-07-21 | 2021-04-20 | 江苏国茂减速机股份有限公司 | Noise control noise insulation and have its speed reducer |
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