CN101392617A - Driving structure of automatic door - Google Patents

Abstract

The present invention discloses an automatic door driving structure, which comprises: a support plate, which is arranged on a fixing frame; a motor, which is arranged on the support plate; and a speed reduction mechanism, which is arranged on the support plate and has an output wheel connected to a door belt; the present invention can achieve the effect of speed reduction and torque improvement by using a group of speed reduction mechanisms, thereby achieving the purpose of reducing volume and facilitating manufacturing and assembly.

Description

Automatic door drive structure

technical field

The present invention relates to an automatic door drive structure, in particular to an automatic door drive that uses a set of deceleration mechanisms to achieve predetermined deceleration and increase torque, thereby reducing volume and facilitating manufacture and assembly. structure.

Background technique

As shown in Figures 6-10, the known automatic door 50 includes: a door 51, which can move left and right; and a fixed frame 52, which is arranged above the door 51; , located on the fixed frame 52; and - the motor 62, located on the bearing plate 61, has a driving shaft 63, the front end of the driving shaft 63 passes through the bearing plate 61 rotatably, and is provided with a driving wheel 64; and the first reduction mechanism 70 , including: a box body 66, fixed at a predetermined distance from the motor 62 on the bearing plate 61; and a driven shaft 71, the middle section is provided with two first bearings 85 to be positioned on the box body 66, and the front end is rotatably worn through Pass the bearing plate 61, and be provided with a driven wheel 72; And a V-belt 73, sleeved on the driving wheel 64 and the driven wheel 72 to form a single closed loop; The diameter of the driven wheel 72 is larger than the driving wheel 64, can achieve deceleration and improve The effect of torsion force; And the second deceleration mechanism 80, this second deceleration mechanism 80 comprises: an output shaft 81, the middle section is provided with two second bearings 86 to be positioned at the casing 66, and the rear end rotatably passes through the casing 66 , and is provided with an output wheel 65; and the first gear 83 is located between the two first bearings 85 of the driven shaft 71; and the second gear 84 is located between the two second bearings 86 of the output shaft 81 , and meshed with the first gear 83; the diameter of the second gear 84 is greater than the first gear 83, which can achieve the effect of deceleration and increase the torque; and a transmission structure 53, the transmission structure 53 includes: a transmission wheel 54, and the output The wheel 65 is arranged on the fixed frame 52 at a predetermined distance; and a door belt 55 is sleeved on the output wheel 65 and the transmission wheel 54 to form a single closed circuit; A connecting portion 57 is arranged to connect the belt belt 55 with a door, and a pulley 58 is provided so as to slide on the fixed mount 52; During operation, the power is transmitted through the first and second reduction mechanisms 70 and 80 to achieve the effect of deceleration and increased torque, and then the output wheel 65 drives the belt belt 55 with the door, and then drives the door 51 to move.

As shown in Figure 11, it is a known double-door automatic door, which is provided with left and right doors 51a, 51b, which are connected at the predetermined place of the belt belt 55 by hanging parts 56a, 56b respectively; At the same time, the left and right doors 51a, 51b are driven to move outwards or inwards.

The known driving structure 60 can effectively achieve the effect of automatically moving the door 51, but because the driving wheel 64 uses friction to drive the driven wheel 72 by the V-belt 73; the driving wheel 64 and the V-belt 73 must have enough contact surfaces to avoid slipping phenomenon, so the diameter of the driving wheel 64 is limited, causing the first deceleration mechanism 70 to be ineffective, so the second deceleration mechanism 80 must be provided; it has at least the following deficiencies:

1. Due to the use of two sets of reduction mechanisms, the volume is large, so a longer fixing frame 52 is required, and a larger space is required for installation.

2. Due to the use of two sets of reduction mechanisms, the structure is complex, the assembly is difficult, and the cost is high.

3. Because two sets of reduction mechanisms are used, the power loss of the motor 62 is large.

Contents of the invention

The technical problem to be solved by the present invention is to provide a drive structure for an automatic door that uses a set of deceleration mechanisms and can reduce volume.

Another technical problem to be solved by the present invention is to provide an automatic door drive structure that can be easily manufactured and assembled.

For this reason, the present invention proposes a kind of automatic door drive structure, and it is arranged on the fixed frame to connect the belt belt of drive structure and drives the door to move, and this automatic door drive structure comprises:

a carrier plate mounted on the fixed frame; and

A motor is arranged on the bearing plate, the motor has a drive shaft, the front end of the drive shaft rotatably passes through the bearing plate, and is provided with a driving wheel; and

A reduction mechanism, the reduction mechanism includes a box and a driven shaft, the box is fixed on the bearing plate with a predetermined distance from the motor; the middle section of the driven shaft is provided with at least one bearing to be positioned on the box , the front end of the driven shaft rotatably passes through the bearing plate, and is provided with a driven wheel to be connected to the driving wheel; the rear end of the driven shaft is rotatably passed through the box body, and is provided with an output wheel to be connected to the belt Door straps.

Therefore, the characteristics and advantages of the present invention are: by using a set of deceleration mechanisms, the effect of deceleration and increase of torsion can be achieved, thereby achieving the purpose of reducing volume and facilitating manufacture and assembly.

Description of drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the present invention viewed from another angle after removing the box body.

Fig. 3 is a schematic diagram of the application of the present invention to an automatic door.

Fig. 4 is a perspective view of the second embodiment of the present invention, using a toothed belt to connect the driving wheel and the driven wheel.

Fig. 5 is a perspective view of a third embodiment of the present invention, which is provided with a supporting plate to support the driving shaft, the driven shaft, and the idler shaft.

Fig. 6 is a perspective view of a known driving structure.

Fig. 7 is a perspective view viewed from another angle after removing the casing of the known driving structure.

Fig. 8 is a schematic diagram of a known drive structure applied to a single-door automatic door.

FIG. 9 is a perspective view of FIG. 8 .

FIG. 10 is a side view of FIG. 8 .

Fig. 11 is a schematic diagram of a known drive structure applied to a double-door automatic door.

Explanation of reference signs:

10...Automatic door driving structure

11...Backing plate 12...Motor

13...Drive shaft 14, 18...Drive wheel

15...Output wheel 16...Box

17...Support plate 19, 29...Bearing

20...reduction mechanism 21...driven shaft

22, 25... driven wheel 23... bearing

30... idler shaft 31... idler

32……Bearing 35……Toothed belt

50...automatic door 51, 51a, 51b...door

52...fixed frame 53...transmission structure

54...Drive wheel 55...Belt with door

56, 56a, 56b...Hanger 57...Joint part

58...Pulley 59...Controller

60...Drive structure

61...Backing plate 62...Motor

63...Drive shaft 64...Drive wheel

65...Output wheel 66...Box

70...the first reduction mechanism 71...the driven shaft

72...Driven wheel 73...V-belt

80...the second reduction mechanism 81...the output shaft

83...First gear 84...Second gear

85...the first bearing 86...the second bearing

121....Front shell 122....Motor component

Detailed ways

As shown in Figures 1 to 3, the automatic door driving structure 10 of the present invention is set on the fixed frame 52 to drive the door 51 to move with the door belt 55 of the driving structure 53. The automatic door driving structure includes: a bearing plate 11, Fixed frame 52; And a motor 12, is located at bearing plate 11; And a speed reduction mechanism 20, is located at bearing plate 11, is provided with an output wheel 15 to be connected with belt door belt 55; Just can reach by using a group of speed reduction mechanism 20 The effect of decelerating and increasing the torque can achieve the purpose of reducing the volume and facilitating the manufacture and assembly. The details will be described below.

The supporting plate 11 is disposed at a predetermined position of the fixing frame 52 for carrying the motor 12 and the reduction mechanism 20 .

The motor 12 includes: a front shell 121, which is located on the bearing plate 11; it can be integrally formed with the bearing plate 11 (not shown in the figure); The front end rotatably passes through the front shell 121 and the bearing plate 11, and is provided with a driving wheel 14 which is a spur gear. The front shell 121 and the motor component 122 of the motor are existing structures, so they will not be repeated here.

The reduction mechanism 20 includes: a box body 16, which is fixed on the bearing plate 11 at a predetermined distance from the motor 12; it can be integrally formed with the bearing plate 11 (not shown); A bearing 23 is positioned on the box body 16, and its front end rotatably passes through the bearing plate 11, and is provided with a driven wheel 22 which is a spur gear to connect the driving wheel 14; its rear end rotatably passes through the box body 16, and is provided with a Output pulley 15 is to be connected in this band door belt 55; And an idler wheel 31, is a spur gear, is connected between driving wheel 14 and driven wheel 22, and meshes with it, can make between motor 12 and reduction mechanism 20 have predetermined distance to avoid mutual interference. Wherein, the diameter of the driven wheel 22 is larger than that of the driving wheel 14, which can achieve the effect of decelerating and increasing the torsion. Because the power is transmitted by the meshing of the teeth, there will be no sliding phenomenon, so the diameter of the driving wheel 14 is not limited, so use a The group deceleration mechanism 20 can achieve the predetermined deceleration and the effect of increasing the torque. Certainly, the driving wheel 14 , the driven wheel 22 and the idler wheel 31 can also be helical gears (not shown in the figure).

The idler 31 is arranged on the front housing (not shown) of the bearing plate 11 or the motor 12 through the idler shaft 30, and a bearing 32 is arranged between the idler shaft 30 and the idler 31, so that the idler 31 rotates.

The middle section of the driven shaft 21 is provided with two bearings 23 for positioning on the box body 16 . The two bearings 23 can be ball bearings with a predetermined distance therebetween. Certainly, the two bearings 23 can also be connected together to reduce the volume, or can be replaced by a roller bearing or a needle bearing (not shown).

As shown in Figure 4, it is the second embodiment of the present invention, the driving wheel 18 and the driven wheel 25 are sleeved with a toothed belt 35 of a single closed circuit; thus there is a predetermined interval between the motor 12 and the reduction mechanism 20, so as to avoid their mutual put one's oar in.

As shown in Figure 5, it is the third embodiment of the present invention. In order to avoid bending of the driving shaft 13, the driven shaft 21, and the idler shaft 30, a supporting plate 17 is provided in front of the bearing plate 11; the driving shaft 13, the driven shaft 21, The front end of the idler shaft 30 is disposed on the supporting plate 17 to increase the supporting force. Wherein, the front ends of the driving shaft 13 and the driven shaft 21 are respectively provided with a bearing 19 , 29 , and are rotatably positioned on the support plate 17 . Of course, the idler shaft 30 and the idler 31 can also be fixed together, and a bearing is provided at the two ends, and is rotatably positioned on the supporting plate 11 and the supporting plate 17 (not shown in the figure).

In summary, through the combination of the above elements, the present invention can achieve the predetermined deceleration and increase the effect of torque by using a group of deceleration mechanisms 20, and at least has the following advantages:

1. Using a set of deceleration mechanism can reduce the volume and facilitate assembly on the door frame.

2. A set of speed reduction mechanisms is used, which has a simple structure, facilitates assembly and manufacture, and reduces costs.

3. Using a set of reduction mechanism, the power loss of the motor is small.

Claims (20)

1. A driving structure for an automatic door, which is arranged on a fixed frame to drive the door to move with a door belt connected to the transmission structure. The driving structure for the automatic door includes: a carrier plate mounted on the fixed frame; and A motor is arranged on the bearing plate, the motor has a drive shaft, the front end of the drive shaft rotatably passes through the bearing plate, and is provided with a driving wheel; and A reduction mechanism, the reduction mechanism includes a box and a driven shaft, the box is fixed on the bearing plate with a predetermined distance from the motor; the middle section of the driven shaft is provided with at least one bearing to be positioned on the box , the front end of the driven shaft rotatably passes through the bearing plate, and is provided with a driven wheel to be connected to the driving wheel; the rear end of the driven shaft is rotatably passed through the box body, and is provided with an output wheel to be connected to the belt Door straps. 2 . The automatic door driving structure according to claim 1 , wherein a supporting plate is connected in front of the bearing plate; front ends of the driving shaft and the driven shaft are arranged on the supporting plate. 3 . 3. The automatic door driving structure according to claim 2, wherein the driving shaft and the driven shaft are respectively provided with a bearing at the front end, and are rotatably positioned on the support plate. 4. The automatic door driving structure according to claim 1, wherein the diameter of the driven wheel is larger than that of the driving wheel. 5. The automatic door driving structure according to claim 1, wherein the driving wheel and the driven wheel are spur gears and mesh with each other. 6. The automatic door driving structure according to claim 1, wherein the driving wheel and the driven wheel are helical gears and mesh with each other. 7. The automatic door driving structure according to claim 1, wherein an idler wheel is connected between the driving wheel and the driven wheel, and the idler wheel meshes with the driving wheel and the driven wheel respectively; the driving wheel, The driven wheel and the idler wheel are spur gears. 8. The automatic door driving structure according to claim 1, wherein an idler wheel is connected between the driving wheel and the driven wheel, and the idler wheel is meshed with the driving wheel and the driven wheel respectively; the driving wheel, The driven wheel and the idler wheel are helical gears. 9. The automatic door driving structure according to claim 7 or 8, wherein the idler wheel is mounted on the bearing plate via an idler wheel shaft. 10. The automatic door driving structure according to claim 9, wherein a bearing is provided between the idler shaft and the idler. 11. The automatic door driving structure according to claim 9, wherein a support plate is connected in front of the bearing plate; the front end of the idler shaft is set on the support plate; bearings. 12. The automatic door driving structure according to claim 9, wherein a supporting plate is connected in front of the bearing plate; the idler shaft and the idler are fixed together, and a bearing is respectively arranged at two ends, and It is rotatably positioned on the supporting plate and the supporting plate. 13. The automatic door driving structure according to claim 7 or 8, wherein the idler gear is arranged on the front housing of the motor through an idler shaft, and a bearing is provided between the idler shaft and the idler gear. 14. The automatic door driving structure according to claim 13, wherein a supporting plate is connected in front of the supporting plate; the front end of the idler shaft is disposed on the supporting plate. 15. The driving structure of the automatic door according to claim 1, wherein the driving wheel and the driven wheel are covered with a single closed loop toothed belt. 16. The automatic door driving structure according to claim 1, wherein the middle section of the driven shaft is provided with two ball bearings. 17. The automatic door driving structure according to claim 1 or 16, wherein the bearing is one of a roller bearing and a needle bearing. 18. The automatic door driving structure according to claim 1, wherein the motor is composed of a front shell and a motor component, and the front shell is formed integrally with the supporting plate. 19. The automatic door driving structure according to claim 1, wherein the box body and the supporting plate are integrally formed. 20. The automatic door driving structure according to claim 1, wherein the motor is composed of a front housing and a motor component, and the front housing, the box body and the supporting plate are integrally formed.

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