WO2007004301A1

WO2007004301A1 - Assembly/adjustment method and device for braking/transmission apparatus

Info

Publication number: WO2007004301A1
Application number: PCT/JP2005/012489
Authority: WO
Inventors: Yasuhiko Matsunaga; Hirotoshi Yonezawa; Kiyomi Mizushima
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-07-06
Filing date: 2005-07-06
Publication date: 2007-01-11
Also published as: CN1985102A; JPWO2007004301A1

Abstract

An assembly/adjustment method and device for a braking/transmission apparatus such as an electromagnetic brake, the method and device have a pressure receiving plate rotating integrally with a drive shaft, and also have first and second pressing plates oppositely arranged holding the pressure receiving plate. In the assembly/adjustment method, when the drive shaft is braked or when rotational force of the drive shaft is transmitted, the first pressing plate is moved to press the pressure receiving plate, and when braking of the drive shaft or transmission of rotational force of the drive shaft is released, both pressing plates are separated at a predetermined gap. In the method, first the gap between the pressing plates when the drive shaft is braked or when the transmission of rotational force of the drive shaft is released is adjusted using a gap adjusting member defining the predetermined gap, and then the second pressing plate is fixed.

Description

Specification

Braking · Transmission equipment assembly adjustment method and assembly adjustment device

Technical field

The present invention relates to an assembly adjustment method and an assembly adjustment device for braking / transmission equipment such as an electromagnetic brake and an electromagnetic clutch.

Background art

[0002] This type of conventional braking / transmission device, for example, a disc-type electromagnetic brake, as shown in, for example, Patent Document 1, is embedded with an electromagnetic coil and has a through hole in the center, and is coaxial with the through hole. A first pressing plate, a pressure receiving plate, and a second pressing plate, which are similarly provided with a through hole at the center, are installed on the field core to which the bolt is fixed. An adjusting nut is attached to the tip of the bolt, and the pressure receiving plate is always attached to the second pressing plate via the first pressing plate by a short compression panel installed between the first pressing plate and the field core. It is pressed. At this time, the pressure receiving plate cannot be rotated with an external force below a predetermined value due to the frictional force generated between the second pressing plate and the first pressing plate. The main body of the rotary actuator is fixed to the field core, and the drive shaft passes through the through hole of the field core and the first pressing plate, and is fixed only to the pressure receiving plate in the rotational direction. The friction force between the pressure receiving plate, the second pressing plate and the first pressing plate is reduced by energizing the electromagnetic coil in the field core to generate an electromagnetic force and pulling the first pressing plate to the field core side. The drive shaft can be rotated.

[0003] In such a configuration, the gap G between the first pressing plate and the pressure receiving plate expands as the pressure receiving plate wears. As a result, the attractive force acting on the first pressing plate is reduced by the electromagnetic force generated in the field core, and the braking force of the brake cannot be released if this force becomes less than the pressing force by the short compression panel. For this reason, the gap G must be managed with the desired dimensions. In order to obtain the desired braking performance, it is necessary to manage the gap G with uniform dimensions over the entire circumference to reduce the variation in suction force.

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-106618 (paragraphs 0020 to 0021)

Disclosure of the invention

Problems to be solved by the invention [0005] In a conventional braking / transmission device, and more specifically, an electromagnetic brake, which is a braking device, the assembly is adjusted so that the gap G between the first pressing plate and the field core is about 0.2 mm during operation. Yes. For adjustment, use at least three adjustment nuts, but if the second adjustment nut is adjusted after positioning and fastening the first adjustment nut, the gap G near the first adjustment nut adjusted earlier is adjusted. Changes. The accuracy required for adjustment was about 0.05 mm, and it was difficult to adjust so that all gaps G were uniform over the entire electromagnetic brake. As a result, the distance between the first pressing plate, the pressure receiving plate, and the second pressing plate when the brake is released is not fixed, and the pressure receiving plate and the first or second pressing plate are operated when the rotary shaft connected to the pressure receiving plate is operated. And there was a problem that abnormal noise was generated.

[0006] In addition, if the adjusting nut is fastened with a predetermined torque with a highly accurate manufactured spacer in the gap G, the assembly can be adjusted easily. The thickness of the spacer is about 0.2mm. If the gap G force is pulled out after fastening, the spacer will be deformed by the friction force generated at the contact area with the first pressure plate and pressure plate! There was a problem. These problems exist in the same way even in a transmission device having a similar configuration, such as an electromagnetic clutch.

[0007] The present invention has been made to solve the above-described problems, and the first pressing plate and the pressure receiving force at the time of braking of the driving shaft of the braking device or the release of driving shaft rotational force transmission. Providing assembly and adjustment method and assembly adjustment device for braking device that can provide high-quality braking and transmission device without abnormal noise by assembling by adjusting the distance between the plate and the second pressing plate with high accuracy It is intended to do.

Means for solving the problem

[0008] In the brake and transmission device assembly and adjustment method according to the present invention, the pressure receiving plate that rotates integrally with the drive shaft, and the first and second pressing plates that are arranged to face each other are sandwiched therebetween. When the drive shaft is braked or the drive shaft rotational force is transmitted, the first pressure plate is moved to press the pressure receiving plate, and when the drive shaft is braked or the drive shaft rotational force is transmitted, both the pressure plates are In the braking / transmission device assembly adjustment method, the drive shaft is braked or the drive shaft rotational force transmission is released using the clearance adjustment member that defines the predetermined clearance. After adjusting the gap between the two pressing plates, fix the second pressing plate It is what you do.

[0009] In addition, the braking / transmission device assembly adjusting device according to the present invention includes a pressure receiving plate that rotates integrally with the drive shaft, and first and second pressing plates that are disposed so as to sandwich the pressure receiving plate. When the drive shaft is braked or the drive shaft rotational force is transmitted, the first pressure plate is moved to press the pressure receiving plate, and when the drive shaft is braked or the drive shaft rotational force is released, the two pressure plates are moved to a predetermined gap. In the brake / transmission device assembly adjustment device for separating at a distance, at least three clearance adjustment members that define the predetermined clearance are provided so as to be movable in a direction perpendicular to the circumferential direction of the brake 'transmission device. When adjusting the gap between the two pressing plates, the gap adjusting member is arranged between the two pressing plates so that the diameter of the circle formed at the three inner points thereof is smaller than the outer diameter of the first and second pressing plates. It is.

The invention's effect

[0010] According to the assembly / adjustment method and the assembly / adjustment device for the braking / transmission device of the present invention, since the assembly management is performed so that the gap dimension between the pressure plates when the pressure receiving plate is released in the braking device is kept constant, the pressure receiving plate Therefore, it is possible to prevent an abnormal noise due to a single piece of contact, and to provide a high-quality braking device.

BEST MODE FOR CARRYING OUT THE INVENTION

[0011] Embodiment 1.

FIG. 1 is a cross-sectional view of an essential part showing, for example, a non-excitation operation type electromagnetic braking device as an example of a braking / transmitting device which is a workpiece assembled and adjusted by the braking / transmitting device assembly adjusting method of the present invention.

In FIG. 1, the non-excitation actuated electromagnetic braking device 10 includes an annular first pressing plate 12 having a through hole in the center and a second pressing plate 13 on a field core 11 in which an electromagnetic coil 11A is inserted. The pressure receiving plate 14 is overlapped, and a short compression panel 15 is provided between the field core 11 and the first pressing plate 12, and a long compression panel 16 is provided between the field core 11 and the second pressing plate 13. Yes.

At least three bolts 17 are fixed to the field core 11, and adjustment nuts 18 are fastened to the respective tips of the bolts 17. The short compression panel 15 and the long compression spring 16 can obtain a desired spring force. It is stored. At this time, the first pressing plate 12 is Operation outside the direction is restricted. That is, the bolt 17 also serves as a guide in the axial direction of the first pressing plate 12. The pressure receiving plate 14 is allowed to rotate around the axis of the field core 11 and move in the axial direction, and when the electromagnetic coil 11 A is not energized, the first pressing plate 12 and the pressure receiving plate 14 are short compression panels. The pressure receiving plate 14 is pressed against the second pressing plate 13 simultaneously by the accumulated power of 15, and the operation of the pressure receiving plate 14 is regulated by the frictional force generated between the first pressing plate 12 and the second pressing plate 13. ing.

Here, when the electromagnetic coil 11A is energized, a magnetic field is generated between the field core 11 and the first pressing plate 12, pulling the first pressing plate 12 toward the field core 11, and as a result, the pressure receiving plate 14 is acted on. When the frictional force is reduced, the frictional force is released and the operation becomes possible.

[0012] In order to use this electromagnetic brake as a braking device for the rotary actuator 19, the field core 11 of the electromagnetic braking device is attached to the main body of the rotary actuator 19, and the rotary shaft 19A of the rotary actuator 19 is connected to the electromagnetic actuator. Fix each to the pressure plate 14 of the brake equipment. Since the operation of the pressure receiving plate 14 is restricted when power is not supplied, the rotary shaft 19A fixed to the pressure receiving plate 14 is similarly restricted.

2, 3 and 4 are a schematic side cross-sectional view, a main-part side cross-sectional view, and a partial plan view as seen from the arrow A, showing the braking and transmitting device assembly adjusting apparatus according to Embodiment 1 of the present invention. .

In FIG. 2, the assembly / adjustment device 20 for the brake / transmission device is a brake for performing assembly adjustment. * A base 21 on which the transmission device 10 is placed and fixed, and a drive shaft 22A below the base 21 is a brake / transmission device 10. And a rotary actuator 22 fixed so as to be positioned at the center of the through hole.

The braking / transmitting device 10 that is assembled and adjusted by the assembly adjusting device is fixed and held at a predetermined position of the base 21 and is assembled and adjusted using a gap adjusting member 30 as will be described later.

Further, after the brake / transmission device 10 is assembled and adjusted, the rotation actuator 22 is driven to check whether the brake / transmission device 10 is normally assembled.

If the rotary actuator 22 is not inspected after the assembly / adjustment of the braking / transmitting device 10, the drive shaft 22A may be a fixed shaft.

Next, a procedure for performing assembly adjustment of the non-excitation operation type electromagnetic braking device 10 shown in FIG. 1 using the braking / transmission device assembly adjusting device according to Embodiment 1 of the present invention will be described. Fig 5 Will be described with reference to FIG.

First, the field core 11 on which the first pressing plate 12 and the pressure receiving plate 14 are placed is positioned and fixed on the base 21 of the assembly adjusting device 20. (S1)

The first pressing plate 12 required when the pressure receiving plate 14 is released is located in the vicinity of at least three bolts 17 (only one is shown in the figure) fixed to the outer periphery of the field core 11 at equal intervals. Three gap adjusting members 30 each having a U-shaped tip portion 30A having the same size as the gap between the second pressing plate 13 and the second pressing plate 13 are disposed. (S2)

Next, the gap adjusting member 30 is moved in a direction perpendicular to the circumferential direction of the field core 11 along the guide 40 fixed to the base 21 with bolts 41, and a circle formed by three points inside thereof. Is arranged so as to be smaller than the outer diameter of the first and second pressing plates 12 and 13. (S3)

In this state, each gap adjusting member 30 is in a position where the U-shaped tip portion 30A sandwiches the bolt 17.

Further, the second pressing plate 13 is piled up with the upper force of each gap adjusting member 30, and the second pressing plate 13 is pressed and fixed to the field core 11 by the pressing means 50 such as a screw bolt that is screwed to the drive shaft 22A. The clearance between the first pressing plate 12 and the second pressing plate 13 is the same as that of the gap adjusting member 30. (S4)

Then, after maintaining this state and tightening the adjusting nut 18 to all the bolts 17 with a desired torque, the brake adjusting device 10 is assembled by removing the gap adjusting member 30. (S5) During assembly, if the electromagnetic coil 11A is energized, the first pressing plate 12 can be brought into close contact with the field core 11 due to the reaction force due to the stored power of the short compression panel 15. The assembly work becomes easier.

The center of the pressure-receiving plate 14 of the braking / transmission device 10 after assembly coincides with the center of the drive shaft 22A, and the cross-sectional shape of the drive shaft 22A is the same as the rectangular hole provided in the center of the pressure-receiving plate 14. The pressure receiving plate 14 is restricted in the axial rotation direction with respect to the drive shaft 22A. The rotary actuator 22 is, for example, an induction motor, and checks whether or not the braking / transmitting device 10 is normally assembled by driving the rotary actuator 22 after releasing the pressure receiving plate 14. (S6) In addition, by driving the rotary actuator 22 after assembling, it is possible to remove the glue generated on the end face of the pressure receiving plate 14 by sliding.

As described above, according to the assembly / adjustment method and apparatus of the braking / transmission device of the first embodiment, the first pressing at the time of braking, braking of the drive shaft of the transmission device or release of the drive shaft rotational force transmission is performed. The gap between the pressure plate and the pressure plate and the second pressure plate can be assembled with high accuracy, and it is possible to prevent abnormal noise due to contact of the pressure plate with one piece. Obtainable.

In addition to the adjustment nut for managing the gap, by providing a pressing means for positioning and fixing, anyone can easily assemble and adjust regardless of the skill of the operator.

[0017] Embodiment 2.

6, FIG. 7 and FIG. 8 show a sectional side view of the main part showing the assembly / adjustment device for the braking / transmission device according to the second embodiment of the present invention, a partial plan view seen from the arrow B, and a gap adjusting member. It is a perspective view.

The second embodiment is different from the first embodiment in that the gap adjusting member 30 has a wedge structure. As shown in FIG. 8, the gap adjustment member 30 is composed of a lower adjustment member 31, a center adjustment member 32, and an upper adjustment member 33. When three parts are stacked, the lower adjustment member 31 and the upper adjustment member 33 The upper surface forms a parallel surface. The contact surfaces of the lower adjustment member 31 and the central adjustment member 32 and the contact surfaces of the central adjustment member 32 and the upper adjustment member 33 all form the same angle, and the magnitude of the angle is determined by the force received from the pressing means 50. The frictional force component is set so as to be larger than the component component that the central adjustment member 32 receives outward.

A hole is provided in the center of the center adjusting member 32, and an eccentric cam 34 is installed there. The eccentric cam 34 is fixed to a shaft 35 having an operation knob 36, and the bearing portion of the shaft 35 is provided on the lower adjustment member 31 and the upper adjustment member 33. When the shaft 35 is rotated, the central adjustment member 32 is moved along the guide pins 37 and 38 in the direction perpendicular to the circumferential direction of the field core 11 by the rotation of the eccentric cam 34. As a result, the lower adjustment member The dimension from the lower surface of 31 to the upper surface of the upper adjustment member 33 can be changed. Turn the shaft 35 to reduce the thickness of the gap adjustment member 30 with a small force. The scraping work becomes easy.

As shown in FIG. 8, the thicknesses of the tips of the lower adjustment member 31, the center adjustment member 32, and the upper adjustment member 33 are a, b, and c, respectively, and the eccentric cam 34 is moved back and forth in the direction of the arrow. If the change range of the thickness of the tip of the central adjustment member 32 is bl to b2 (where bl> b> b2), the adjustment dimension h by the gap adjustment member 30 is changed from h = a + bl + c to h = a + It can be changed within the range of b2 + c.

[0018] Here, the means for rotating the shaft 35 can control the size of the gap adjusting member 30 with higher accuracy by controlling the rotation angle using a manual force actuator. As a result, even if the clearance between the first pressing plate 12 and the second pressing plate 13 required for assembly changes due to model changes and component size variations, it is possible to respond freely.

The gap adjusting member 30 can obtain the same effect even if it is a pantograph method, for example, as long as the thickness dimension can be changed.

As described above, according to the assembly / adjustment device for a braking / transmitting device of the second embodiment, the gap adjusting member has means for freely adjusting the gap between the two pressing plates. In addition, the clearance adjustment member can be easily pulled out even after the adjustment nut has been tightened.In addition, the pressure plate can be braked with a constant quality regardless of lot variations in the pressure receiving plate dimensions and dimensional changes due to product changes. Can be assembled.

Brief Description of Drawings

FIG. 1 is a cross-sectional view of a principal part showing an example of a braking / transmitting device that is assembled and adjusted by the method of the present invention.

FIG. 2 is a schematic sectional side view showing an assembly adjusting device for a braking / transmitting device according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional side view of a main part showing an assembly adjusting device for a braking and transmission device according to Embodiment 1.

FIG. 4 is a partial plan view seen from arrow A in FIG.

FIG. 5 is a process explanatory view showing the braking / transmission device assembly adjusting method of the first embodiment.

FIG. 6 is a cross-sectional side view of a main part showing a braking / transmitting device assembly adjusting apparatus of Embodiment 2.

FIG. 7 is a partial plan view showing the force of the arrow B in FIG.

FIG. 8 is a perspective view showing a gap adjusting member in the second embodiment. Explanation of symbols

10 Braking 'transmission device, 11 Field core, 12 First pressing plate, 13 Second pressing plate, 14 Pressure receiving plate, 15 Short compression panel, 16 Long compression panel, 17 Bolt, 18 Adjustment nut, 19 Rotary actuator, 19A Rotating shaft, 20 Braking / Transmission device assembly adjustment device, 21 base, 22 rotary actuator, 22A drive shaft, 30 clearance adjustment member, 30A U-shaped tip, 31 lower adjustment member, 32 center adjustment member, 33 upper adjustment Member, 34 Eccentric cam, 35 axis, 36 Operation knob, 37, 38 Guide pin, 40 guide, 41 bolt, 50 Pressing method

Claims

The scope of the claims

[1] A pressure receiving plate that rotates integrally with the drive shaft, and first and second pressing plates that are arranged to face each other so as to sandwich the pressure receiving plate, and when the drive shaft is braked or the drive shaft rotational force is transmitted, A control / transmission device that moves the one pressing plate to press the pressure receiving plate and separates the pressing plates with a predetermined gap when braking the driving shaft or releasing the driving shaft rotational force transmission. The assembly adjustment method of

Using the gap adjusting member that defines the predetermined gap, after adjusting the gap between the two pressure plates when braking the drive shaft or releasing the drive shaft rotational force transmission, the second pressure plate is fixed. An assembly and adjustment method for a braking / transmission device, characterized in that:

[2] The gap adjusting member is inserted from the outer peripheral direction of the braking 'transmission device, and the first pressing plate, the second pressing plate, and the gap adjusting member are fixed by a fixing means provided in the braking' transmission device. The method of assembling and adjusting a brake transmission device according to claim 1, wherein the gap adjusting member is pulled out in an outer peripheral direction of the brake / transmission device after the positioning and fixing are collectively performed.

[3] The assembly of the braking / transmission device according to claim 1, wherein the braking / transmission device includes a field core that moves the first pressing plate by electromagnetic force and presses the first pressing plate against the pressure receiving plate. Adjustment method.

[4] A pressure receiving plate that rotates integrally with the drive shaft, and first and second pressing plates that are arranged to face each other so as to sandwich the pressure receiving plate, and when the drive shaft is braked or the drive shaft rotational force is transmitted, A control / transmission device that moves the one pressing plate to press the pressure receiving plate and separates the pressing plates with a predetermined gap when braking the driving shaft or releasing the driving shaft rotational force transmission. In the assembly adjustment device of

At least three clearance adjustment members that define the predetermined clearance are provided so as to be movable in a direction orthogonal to the circumferential direction of the braking and transmission device, and when adjusting the clearance between the two pressing plates, the clearance adjustment member is provided. An assembly adjusting device for a braking / transmission device, characterized in that it is arranged between the pressing plates so that the diameter of a circle formed by three points on the inside is smaller than the outer diameter of the first and second pressing plates. .

[5] The gap adjusting member is a hand that freely adjusts the gap between the first and second pressing plates. 5. The braking / transmitting device assembly adjusting device according to claim 4, further comprising a step.

[6] The rotary actuator according to claim 4 or 5, wherein a rotary actuator is provided, and the drive shaft of the rotary actuator can be fixed to the pressure receiving plate after assembly adjustment of the braking / transmission device. Assembly adjustment device for transmission equipment.

7. A braking / transmitting device characterized in that the gap between the first and second pressing plates is adjusted and assembled by the assembly adjusting method according to any one of claims 1 to 3.