bnp-b2365(eng)b.pdf - 第20页

1. Installation 1 - 4 1-1-5 Shaft characteristics There is a limit to the load that can be applied on the motor shaft. Make sure that the load applied on the radial direction and thrust direction, when mounted on the mac…

1. Installation

1 - 3

1-1-3 Cautions for mounting load (prevention of impact on shaft)

[1] When using the servomotor with key way, use

the screw hole at the end of the shaft to mount

the pulley onto the shaft. To install, first place

the double-end stud into the shaft screw

holes, contact the coupling end surface

against the washer, and press in as if

tightening with a nut. When the shaft does not

have a key way, use a frictional coupling, etc.

[2] When removing the pulley, use a pulley

remover, and make sure not to apply an

impact on the shaft.

Servomoto

Double-end stud

Nut

Pulle

Washe

[3] Install a protective cover on the rotary sections such as the pulley installed on the shaft to ensure

safety.

[4] The direction of the detector installed on the servomotor cannot be changed.

CAUTION

Never hammer the end of the shaft

during assembly.

1-1-4 Installation direction

[1] There are no restrictions on the installation direction. Installation

in any direction is possible, but as a standard the motor is

installed so that the motor power line and detector cable cannon

plugs (lead-in wires) face downward. Installation in the standard

direction is effective against dripping. Measure to prevent oil and

water must be taken when not installing in the standard direction.

When the motor is not installed in the standard direction, refer to

section "1-1-6 Oil/water standards" and take the appropriate

measures.

The brake plates may make a sliding sound when a servomotor

with magnetic brake is installed with the shaft facing upward, but

this is not a fault.

Down

Standard installation

ect

1. Installation

1 - 4

1-1-5 Shaft characteristics

There is a limit to the load that can be applied on the motor shaft. Make sure that the load applied on the

radial direction and thrust direction, when mounted on the machine, is below the tolerable values given

below. These loads may affect the motor output torque, so consider them when designing the machine.

Servomotor Tolerable radial load Tolerable thrust load

HA053NS, HA13NS 78.4N (L=26mm) 49N

HA23NS, HA33NS

HA23NT, HA33NT

245N (L=30 mm) 147N

HC103RT, HC153RT, HC203RT 392N (L=45 mm) 196N

HC52T, HC102T, HC152T

HC53T, HC103T, HC153T

392N (L=58 mm) 490N

HC103RS, HC153RS, HC203RS 686N (L=45 mm) 196N

HC353RS, HC503RS 980N (L=63 mm) 392N

HC52S, HC102S, HC152S

HC53S, HC103S, HC153S

980N (L=55 mm) 490N

HC202S, HC352S, HC452S, HC702S

HC203S, HC353S, HC453S, HC703S

2058N (L=79 mm) 980N

HC902S

HA-LF11K2-S8

2450N (L=85 mm) 980N

HA-LF15K2-S8 2940N (L=100 mm) 980N

Note: The symbol L in the table refers to the value of L below.

Thrust load

Radial load

L : Length from flange installation surface to center of load weight [mm]

CAUTION

1. Use a flexible coupling when connecting with a ball screw, etc., and keep the

shaft core deviation to below the tolerable radial load of the shaft.

2. When directly installing the gear on the motor shaft, the radial load increases

as the diameter of the gear decreases. This should be carefully considered

when designing the machine.

3. When directly installing the pulley on the motor shaft, carefully consider so

that the radial load (double the tension) generated from the timing belt tension

is less than the values shown in the table above.

4. In machines where thrust loads such as a worm gear are applied, carefully

consider providing separate bearings, etc., on the machine side so that loads

exceeding the tolerable thrust loads are not applied to the motor.

5. Do not use a rigid coupling as an excessive bending load will be applied on

the shaft and could cause the shaft to break.

1. Installation

1 - 5

1-1-6 Oil/water standards

[1] The motor protective format uses the IP type, which complies with IEC

Standard. However, these Standards are short-term performance

specifications. They do not guarantee continuous environmental

protection characteristics. Measures such as covers, etc., must be

taken if there is any possibility that oil or water will fall on the motor,

and the motor will be constantly wet and permeated by water. Note

that the motor’s IP-type is not indicated as corrosion-resistant.

[2] When a gear box is installed on the servomotor, make sure that the oil

level height from the center of the shaft is higher than the values given below. Open a breathing

hole on the gear box so that the inner pressure does not rise.

Servomotor Oil level (mm)

HA053N, HA13N 8

HA23N, HA33N 10

HC52, HC102, HC152

HC53, HC103, HC153

HC103R, HC153R, HC203R

HC353R, HC503R

HC202, HC352, HC452, HC702

HC203, HC353, HC453, HC703

HC902 30

HA-LF11K2-S8 34

HA-LF15K2-S8 48

Oil level

Lip

V-ring

Servomoto

Gea

[3] When installing the servomotor horizontally, set the power cable and detector cable to face

downward. When installing vertically or on an inclination, provide a cable trap.

Cable trap

CAUTION

1. The servomotors, including those having IP65 specifications, do not have a

completely waterproof (oil-proof) structure. Do not allow oil or water to

constantly contact the motor, enter the motor, or accumulate on the motor. Oil

can also enter the motor through cutting chip accumulation, so be careful of

this also.

2. When the motor is installed facing upwards, take measures on the machine

side so that gear oil, etc., does not flow onto the motor shaft.

3. Do not remove the detector from the motor. (The detector installation screw is

treated for sealing.)

Oil or water

Servomotor