CN208731098U - A kind of driving device - Google Patents

Abstract

The utility model relates to a kind of driving device, including bearing unit, the driving unit being fixedly supported upon on the bearing unit, and the idler wheel being supported on the bearing unit, the driving unit are mutually coaxially disposed with the idler wheel, and the idler wheel is driven to rotate；The bearing unit includes the first bearing component and second bearing component being fixedly supported upon in the fulcrum bearing with driving unit fulcrum bearing interconnected；The idler wheel is between the first bearing component and the second bearing component, and the spacing distance between the idler wheel is equal respectively for the first bearing component and the second bearing component.The load suffered by it is set to be averaged distribution the middle position that idler wheel is mounted between first bearing component and second bearing component, to ensure that when carrying heavier load, idler wheel two sides stress balance is conducive to the stable and service life for improving the utility model.

Description

A kind of driving device

Technical field

The utility model relates to a kind of driving device more particularly to a kind of driving devices for RGV trolley.

Background technique

With becoming increasingly popular for automated production, RGV trolley also generates therewith, and RGV trolley can be used for various transport needs, Especially small vehicle passage can design arbitrarily long, its use scope can be improved, and participate in operation without artificial, make its safety It can be higher.In addition, its automatic operating and speed of service is fast, thus manpower is saved considerably, productivity is improved, production is transported Defeated process becomes very simple and direct.With the needs of production, the load that RGV trolley is transported also constantly changes, and existing RGV is small The driving device of vehicle is directly driven by the coaxially connected idler wheel of rotation axis generally by servo motor, this structure connection side Formula can be suitable for transporting lighter load, but in the case where load increases, since idler wheel is under the driving of servo motor, Torsion is relatively small, is unable to satisfy delivery needs, damages so as to cause servo motor overload.

Utility model content

The purpose of this utility model is to provide a kind of driving devices, can be suitable for the transport of heavier load.

To realize above-mentioned purpose of utility model, the utility model provides a kind of driving device, including bearing unit, fixed branch The driving unit on the bearing unit is held, and the idler wheel being supported on the bearing unit, the driving unit and institute It states idler wheel to be mutually coaxially disposed, and the idler wheel is driven to rotate；

The bearing unit include with driving unit fulcrum bearing interconnected, be fixedly supported upon in the fulcrum bearing First bearing component and second bearing component；

The idler wheel is between the first bearing component and the second bearing component, and the first bearing group The spacing distance between the idler wheel is equal respectively for part and the second bearing component.

One aspect according to the present utility model, the fulcrum bearing include pedestal, are mutually permanently connected with the pedestal First bearing and the second bearing, and the third being arranged in a mutually vertical manner with the pedestal support；

The first bearing component and first bearing are connected with each other, the second bearing component and second bearing It is connected with each other, the driving unit and third bearing are connected with each other.

One aspect according to the present utility model, the third support and are provided with through-hole, the through-hole, the first axle Bearing assembly and second bearing component coaxial arrangement.

One aspect according to the present utility model, the first bearing component include interconnected with first bearing First bearing seat, the first bearing being supported in the first bearing seat, and be connected with each other and use with the first bearing seat In the logical lid of first limited to the first bearing and the second logical lid；

The second bearing component includes supporting second bearing seat interconnected with described second, is supported on described second Second bearing on bearing block, and the third for being connected with each other with the second bearing seat and being used to limit the second bearing Logical lid and valve deck.

One aspect according to the present utility model is provided with first boss in first bearing, the first boss with It is that first bearing is integrated or being detachably connected；

Second boss is provided in second bearing, it is that the second boss is integrated with second bearing or removable Unload connection；

The third supporting and fixing is connected to the side of first bearing, and third bearing and first bearing The position of connection is provided with transition structure.

One aspect according to the present utility model, the driving unit include: power source, are coaxially disposed with the power source Deceleration mechanism, the drive shaft being mutually coaxially disposed with the deceleration mechanism；

The drive shaft mutually coaxially connects with the first bearing component, the second bearing component and the idler wheel respectively It connects.

One aspect according to the present utility model, the drive shaft include: for being connected with the deceleration mechanism One shaft part, the second shaft part being connected with the first bearing component, third shaft part, the 4th axis being connected with the idler wheel Section, the 5th shaft part being connected with the second bearing component；

Position limiting structure is respectively arranged on first shaft part and the 4th shaft part.

One aspect according to the present utility model, the driving unit further include spacer ring；

The spacer ring removably setting nested with the 5th shaft part.

One aspect according to the present utility model, the position limiting structure is groove or protrusion, and is provided at least one.

One aspect according to the present utility model, the power source are servo motor.

A kind of scheme according to the present utility model, by by idler wheel be mounted on first bearing component and second bearing component it Between middle position to making load suffered by first bearing component and second bearing component be averaged distribution, to ensure that The utility model is when carrying heavier load, the first bearing component and second bearing component stress balance of idler wheel two sides, effectively Avoiding leads to the abrasion of first bearing component and second bearing component since load is unevenly distributed, and avoids practical Novel deflection in the process of running, reduces the abrasion between idler wheel and track, is conducive to the operation for improving the utility model Stable and service life.

A kind of scheme according to the present utility model, by setting first boss and second boss, to facilitate adjustment first Concentricity between bearing assembly and first bearing component, if the concentricity between first bearing component and first bearing component is not It meets the requirements, first boss and/or second boss is processed or is replaced, avoid to the first bearing and second The direct processing of bearing.Meanwhile being connected respectively with first bearing component and first bearing component using first boss and second boss It connects, it, can be by reprocessing or replacing the deviation eliminating abrasion and generating if wearing, and then ensure that first bearing component and the Concentricity between one bearing assembly avoids the replacement to fulcrum bearing, especially in the case where carrying heavier load, reduces The maintenance cost of the utility model, improves service life.

A kind of scheme according to the present utility model, by the way that transition knot is arranged in third bearing and the position of the first support connection Structure increases the intensity of link position, advantageously ensures that the verticality of third bearing and pedestal, thus to the utility model is guaranteed It is stable beneficial, improve the bearing stability of the utility model.Meanwhile it also helping and eliminating third bearing and first Hold the stress inside link position, so as to avoid the vibration that the utility model generates in the process of running cause third bearing with The fracture of first support connection position, to improve the structural strength and service life of the utility model.

A kind of scheme according to the present utility model effectively increases the output of power source by setting deceleration mechanism Torque, it is beneficial in the case where carrying heavier load for the utility model, avoid what the power source under heavier load overloaded Situation improves the service life of power source.By power source, the coaxial arrangement of deceleration mechanism and drive shaft, power ensure that The stable of the utility model is stablized and then be ensure that in the output of source torque.In embodiments, power source is servo motor. It ensure that accurately controlling for the utility model operation by using servo motor, advantageously ensure that the utility model traveling displacement It accurately controls, ensure that the running precision of the utility model.

Detailed description of the invention

Fig. 1 schematically shows a kind of main view of the driving device of embodiment according to the present utility model；

Fig. 2 schematically shows a kind of top view of the driving device of embodiment according to the present utility model；

Fig. 3 schematically shows a kind of structure chart of the bearing seat of embodiment according to the present utility model；

Fig. 4 schematically shows a kind of cross-sectional view of embodiment driving device according to the present utility model；

Fig. 5 schematically shows a kind of structure chart of the drive shaft of embodiment according to the present utility model.

Specific embodiment

It, below will be to implementation in order to illustrate more clearly of the utility model embodiment or technical solution in the prior art Attached drawing needed in mode is briefly described.It should be evident that the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skills without creative efforts, can be with It obtains other drawings based on these drawings.

When being described for the embodiments of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", orientation or positional relationship is expressed by "outside" Based on orientation or positional relationship shown in relevant drawings, it is merely for convenience of describing the present invention and simplifying the description, without It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore on Stating term should not be understood as limiting the present invention.

The utility model is described in detail with reference to the accompanying drawings and detailed description, embodiment cannot herein one One repeats, but therefore the embodiments of the present invention is not defined in following implementation.

Referring to figs. 1 and 2, a kind of embodiment according to the present utility model, a kind of driving dress of the utility model Set includes: bearing unit 1, driving unit 2 and idler wheel 3.In the present embodiment, driving unit 2 is fixedly supported upon bearing unit 1 On, idler wheel 3 is also supported on bearing unit 1.The connection mutually coaxial with driving unit 2 of idler wheel 3, and pass through driving unit 2 Idler wheel 3 is driven to rotate.Idler wheel 3 is steel wheel in the present embodiment.In the present embodiment, bearing unit 1 include fulcrum bearing 11, First bearing component 12 and second bearing component 13.Driving unit 2 is mutually permanently connected with fulcrum bearing 11, first bearing component 12 It is supported in fulcrum bearing 11 with second bearing component 13.Idler wheel 3 between first bearing component 12 and second bearing component 13, And first bearing component 12 and second bearing component 13 respectively the spacing distance between idler wheel 3 be it is equal, i.e., along axial direction (in Fig. 1 laterally), first bearing component 12, idler wheel 3 and second bearing component 13 are set gradually, and idler wheel 3 is located at first axle Middle position between bearing assembly 12 and second bearing component 13.By the way that idler wheel 3 is mounted on first bearing component 12 and Middle position between two bearing assemblies 13 is to make load quilt suffered by first bearing component 12 and second bearing component 13 Mean allocation, thus ensure that the utility model when carrying heavier load, the first bearing component 12 and second of 3 two sides of idler wheel 13 stress balance of bearing assembly, effectively preventing being unevenly distributed due to load leads to first bearing component 12 and second bearing group The abrasion of part 13, and the deflection of the utility model in the process of running is avoided, reduce the mill between idler wheel 3 and track Damage is conducive to the stable and service life for improving the utility model.

As shown in figure 3, a kind of embodiment according to the present utility model, fulcrum bearing 11 is supported including pedestal 111, first 112, the second bearing 113 and third bearing 114.In the present embodiment, pedestal 111 is plate body, the first bearing 112 and second What bearing 113 was parallel to each other is fixedly supported upon on the bottom surface of pedestal 111.Third bearing 114 is also plate body structure, with pedestal 111 orthogonal settings.In conjunction with shown in Fig. 1 and Fig. 3, in the present embodiment, first bearing component 12 is fixedly supported upon In one bearing 112, second bearing component 13 is fixedly supported upon in the second bearing 113, and driving unit 2 and third bearing 114 are mutually It is fixedly connected.In the present embodiment, through-hole 1141 is provided in third bearing 114, through-hole 1141 is through third bearing 114 Ontology, and through-hole 1141, first bearing component 12 and second bearing component 13 are coaxially disposed.In the present embodiment, pass through Pedestal 111 is connected with carrying platform can be used to band carrying platform operation.

As shown in figure 3, a kind of embodiment according to the present utility model, first boss is provided in the first bearing 112 1121, second bearing 113 on be provided with second boss 1131.In the present embodiment, first boss 1121 and the first bearing 112 Being integrated or be detachably connected, second boss 1131 and the second bearing 113 are being integrated or be detachably connected.First axle Bearing assembly 12 and first boss 1121 are connected with each other, and second bearing component 13 and second boss 1131 are connected with each other.Pass through setting First boss 1121 and second boss 1131, to facilitate same between adjustment first bearing component 12 and first bearing component 12 Axis degree, if the concentricity between first bearing component 12 and first bearing component 12 is unsatisfactory for requiring, to first boss 1121 and/ Or second boss 1131 is processed or replaces, and avoids the direct place to the first bearing 112 and the second bearing 113 Reason.Meanwhile being connected respectively with first bearing component 12 and first bearing component 12 using first boss 1121 and second boss 1131 It connects, it, can be by reprocessing or replacing the deviation eliminating abrasion and generating if wearing, and then ensure that 12 He of first bearing component Concentricity between first bearing component 12 avoids the replacement to fulcrum bearing 11, especially in the case where carrying heavier load, The maintenance cost for reducing the utility model, improves service life.

As shown in figure 3, a kind of embodiment according to the present utility model, third bearing 114 is fixedly connected on the first bearing 112 side, and the position that third bearing 114 is connect with the first bearing 112 is provided with transition structure 1142.In present embodiment In, transition structure 1142 can be clinoplain or arcwall face.By in the position that third bearing 114 is connect with the first bearing 112 Transition structure 1142 is installed, the intensity of link position is increased, advantageously ensures that third bearing 114 is vertical with pedestal 111 Degree, to improve the bearing stability of the utility model to the stable beneficial of the utility model is guaranteed.Meanwhile also Conducive to the stress eliminated inside third bearing 114 and the first 112 link positions of bearing, run so as to avoid the utility model The vibration generated in the process leads to the fracture of third bearing 114 and the first 112 link positions of bearing, so that it is practical new to improve this The structural strength and service life of type.

As shown in figure 4, a kind of embodiment according to the present utility model, first bearing component 12 includes first bearing seat 121, first bearing 122, the first logical lid 123 and the second logical lid 124.In the present embodiment, it is provided in first bearing seat 121 The bearing mounting hole for installing first bearing 122, by the loading of first bearing 122 and bearing mounting hole same axis, the first logical lid 123 The opposite two sides of first bearing seat 121 are separately mounted to the second logical lid 124, and logical by the first logical lid 123 and second Position of the first bearing 122 in bearing mounting hole is fixed lid 124, and the axial direction so as to avoid first bearing 122 is altered It is dynamic, it ensure that the stable of first bearing component 12.Second bearing component 13 includes second bearing seat 131, second bearing 132, threeway lid 133 and valve deck 134.In the present embodiment, installation second bearing 132 is provided in second bearing seat 131 Bearing mounting hole, by the loading of second bearing 132 and bearing mounting hole same axis, threeway lid 133 and valve deck 134 are pacified respectively Mounted in the opposite two sides of second bearing seat 131, and pass through threeway lid 133 and valve deck 134 for second bearing 132 in bearing Position in mounting hole is fixed, and so as to avoid the axial float of second bearing 132, ensure that second bearing component 13 It is stable.By on second bearing component 13 by using valve deck 134, thus play to 13 side of second bearing component into The effect of row sealing avoids extraneous dust and other impurities and enters in second bearing 132, ensure that inside second bearing component 13 Cleaning, and then ensure that the stable of second bearing component 13.In the present embodiment, first bearing 122 and the second axis It holds 132 and is all made of tapered roller bearing, beneficial effect is played to the bearing capacity for increasing the utility model.Meanwhile first bearing 122 and second bearing 132 mutually it is coaxial be oppositely arranged, to play good position-limiting action, further avoid idler wheel 3 Axial float, ensure that the stable of the utility model.

In conjunction with shown in Fig. 1, Fig. 2 and Fig. 4, a kind of embodiment according to the present utility model, driving unit 2 includes: power Source 21, deceleration mechanism 22 and drive shaft 23.In the present embodiment, power source 21, deceleration mechanism 22 and drive shaft 23 are mutually same The connection of axis.By setting deceleration mechanism 22 to effectively increase the output torque of power source 21, for the utility model It is beneficial in the case where carrying heavier load, the case where power source 21 overloads under heavier load is avoided, power source is improved 21 service life.By power source 21, the coaxial arrangement of deceleration mechanism 22 and drive shaft 23,21 torque of power source ensure that The stable of the utility model is stablized and then be ensure that in output.In embodiments, power source 21 is servo motor.By adopting It ensure that accurately controlling for the utility model operation with servo motor, advantageously ensure that the accurate control of the utility model traveling displacement System, ensure that the running precision of the utility model.

Referring to shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, drive shaft 23 passes through through-hole 1141 respectively and in first bearing component 12 Second bearing 132 and idler wheel 3 in first bearing 122, second bearing component 13 is mutually coaxially connected.In the present embodiment, Drive shaft 23 includes: the first shaft part 231 for being connected with deceleration mechanism 22, with first bearing in first bearing component 12 122 the second shaft parts 232 being connected, third shaft part 233, the 4th shaft part 234 being connected with idler wheel 3, with second bearing component The 5th shaft part 235 that second bearing 132 is connected in 13.In the present embodiment, on the first shaft part 231 and the 4th shaft part 234 It is respectively arranged with position limiting structure 236,237.In the setting form of position limiting structure 236 on first shaft part 231 and the 4th shaft part 234 Position limiting structure 237 set-up mode can be it is identical be also possible to it is different.In the present embodiment, the first shaft part 231 Be groove with the position limiting structure 236,237 on the 4th shaft part 234, drive shaft 23 by position limiting structure 236,237 respectively with subtract Fast mechanism 22 and the key connection of idler wheel 3 can be realized power source 21 and drive to idler wheel 3.Certain position limiting structure 236,237 may be used also To be set as protrusion.Position limiting structure 236,237 may be arranged as on the first shaft part 231 and the 4th shaft part 234 it is multiple (2, 3 or it is more), multiple position limiting structures 236,237 circumferentially uniform row on the first shaft part 231 and the 4th shaft part 234 respectively Cloth, it is advantageous when carrying heavier load for the utility model, make power source 21 in driving drive shaft 23 and drive shaft When 23 driving idler wheels 3 rotate, the first shaft part 231 and the 4th shaft part 234 can uniform force, advantageously ensure that the fortune of drive shaft 23 Row stabilization and service life.

As shown in figure 4, a kind of embodiment according to the present utility model, driving unit 2 further includes spacer ring 24.In this implementation In mode, the removably setting nested with the 5th shaft part 235 of spacer ring 24.24 one end of spacer ring and the side of idler wheel 3 lean, another It holds and leans with the side of second bearing 132 in second bearing component 13, in 233 side of third shaft part and first bearing component 12 First bearing 122 leans, and the other side leans with idler wheel 3, so that the position to idler wheel 3 carries out accurate limit, avoids rolling The axial of wheel 3 is shaken, and ensure that the stable of the utility model.

Above content is only the example of the concrete scheme of the utility model, for the equipment and knot of wherein not detailed description Structure, it should be understood that the existing common apparatus in this field and universal method is taken to be practiced.

The foregoing is merely a schemes of the utility model, are not intended to limit the utility model, for ability For the technical staff in domain, various modifications and changes may be made to the present invention.It is all the spirit and principles of the utility model it Interior, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of driving device, which is characterized in that including bearing unit (1), the drive being fixedly supported upon on the bearing unit (1) Moving cell (2), and the idler wheel (3) being supported on the bearing unit (1), the driving unit (2) and the idler wheel (3) phase Mutually coaxial arrangement, and the idler wheel (3) is driven to rotate；

The bearing unit (1) include with the driving unit (2) fulcrum bearing interconnected (11), be fixedly supported upon the branch Hold the first bearing component (12) and second bearing component (13) on seat (11)；

The idler wheel (3) is between the first bearing component (12) and the second bearing component (13), and described The spacing distance between the idler wheel (3) is equal respectively for one bearing assembly (12) and the second bearing component (13).

2. driving device according to claim 1, which is characterized in that the fulcrum bearing (11) includes pedestal (111), with institute The first bearing (112) and the second bearing (113) that pedestal (111) is mutually permanently connected are stated, and mutual with the pedestal (111) Vertically disposed third supports (114)；

The first bearing component (12) and first bearing (112) are connected with each other, the second bearing component (13) and institute The second bearing (113) interconnection is stated, the driving unit (2) and third bearing (114) are connected with each other.

3. driving device according to claim 2, which is characterized in that be provided with through-hole on the third bearing (114) (1141), the through-hole (1141), the first bearing component (12) and the second bearing component (13) coaxial arrangement.

4. driving device according to claim 3, which is characterized in that the first bearing component (12) includes and described One bearing (112) first bearing seat interconnected (121), the first bearing being supported on the first bearing seat (121) (122), it and with the first bearing seat (121) is connected with each other and first for limiting to the first bearing (122) is logical Cover (123) and the second logical lid (124)；

The second bearing component (13) includes and described second supports (113) second bearing seat interconnected (131), bearing Second bearing (132) on the second bearing seat (131), and be connected with each other and use with the second bearing seat (131) In the threeway lid (133) and valve deck (134) that are limited to the second bearing (132).

5. according to any driving device of claim 2 to 4, which is characterized in that be provided in first bearing (112) First boss (1121), the first boss (1121) support that (112) are integrated or being detachably connected with described first；

It is provided with second boss (1131) in second bearing (113), the second boss (1131) and second bearing (113) being integrated or be detachably connected；

Third bearing (114) is fixedly connected on the side of first bearing (112), and third bearing (114) with The position of first bearing (112) connection is provided with transition structure (1142).

6. driving device according to claim 1, which is characterized in that the driving unit (2) includes: power source (21), With the deceleration mechanism (22) of the power source (21) coaxial arrangement, the drive shaft being mutually coaxially disposed with the deceleration mechanism (22) (23)；

The drive shaft (23) respectively with the first bearing component (12), the second bearing component (13) and the idler wheel (3) mutually coaxially connected.

7. driving device according to claim 6, which is characterized in that the drive shaft (23) includes: for subtracting with described The first shaft part (231) that fast mechanism (22) is connected, the second shaft part (232) being connected with the first bearing component (12), Third shaft part (233), the 4th shaft part (234) being connected with the idler wheel (3) are connected with the second bearing component (13) The 5th shaft part (235)；

Position limiting structure (236,237) are respectively arranged on first shaft part (231) and the 4th shaft part (234).

8. driving device according to claim 7, which is characterized in that the driving unit (2) further includes spacer ring (24)；

The spacer ring (24) removably setting nested with the 5th shaft part (235).

9. driving device according to claim 7, which is characterized in that the position limiting structure (236,237) is groove or convex It rises, and is provided at least one.

10. driving device according to claim 6, which is characterized in that the power source (21) is servo motor.