Varitron - DH Low Backlash Planetary Precision Gearbox

 

- High Precision Gear -

 The planetary gear and sun gear are manufactured from high quality Ni-Cr-Mo alloy steel. Precision machined and carburized, then for precision tooth grinding or skiving assures gears high precision.

 

- Modular Deisgn of Motor Connection Plate -

The special modular design of motor connection plate is suitable for any brand and any type of servomotor. Manufactured from aluminum alloy, its surface is anodized treated for upgrading environmental-resistant and corrosion-resistant capability.

 

- Single-piece Gearbox & Advanced Surface Treatment -

The gearbox and internal gear ring are single price design and constructed, which is manufactured from Cr-Mo alloy steel, and tempered for high torque output. Gearbox surface is anti-corrosive treated for upgrading environmental resistant and corrosionresistant capability.

 

- Modular Input Shaft -

Modular input shaft design and motor shaft are coupled through a dynamic balanced collar clamping mechanism to ensure connection concentricity and zero slip power transmission at high speed.

 

- Integrated Planetary Arm Bracket -

The planetary arm bracket and the output shaft are single piece design constructed to increase torsional rigidity and accuracy. The entire structure is one-time machined for controlling accuracy in the specified tolerance.

  

Gearbox Model Number	DH Series High Precision Planetary Gearbox DH042, DH060, DH080, DH090, DH120, DH150
Speed Reduction Method	Planetary gear mechanism with designed tooth profile
Efficiency	95% per stage gearbox
Shock Load	300% as there are only compressive forces rather than shear forces on the tooth
Gear box Mounting	Flange Mounting, Foot mounting parts sold separately
Reduction Ratio	Up to 1:10 per stage 1:1000 on 3-stages
Capacity Range	100Watt to 11,000Watt
Enclosure	Totally enclosed IP55
Power Source	Servo motor, stepper motor
Backlash	Single Stage: below 5arcmin Double Stages: Below 8arcmin
Reduction Gearbox Lubrication Method	High viscosity anti-separation grease
Method of Coupling with Driven Machine	Coupling, gears, chain sprocket or belt
Standard	CE, UL, CSA, ISO 9001, ISO14001
Warranty	1 Year Limited Warranty

j	Planetary Gearbox Model	DA: Helical Gear High Precision Planetary Gearbox DM:Precision Planetary Gearbox DML:Standard Precision Round Body Planetary Gearbox DF:Precision Flange Type Planetary Gearbox DH:Standard Precision Planetary Gearbox DL:Standard Precision Round Body Planetary Gearbox DN:High R-A Load Standard Precision Planetary Gearbox RAM-S:Precision Shaft Output Spiral Bevel Gearbox RAM-SS:Precision Double Shaft Spiral Bevel Gearbox RAM-H:Precision Hollow Shaft Spiral Bevel Gearbox RAM-D: Precision Clamping Shaft Spiral Bevel Gearbox RAM-F: Precision Flange Spiral Bevel Gearbox RAH-S: Standard Precision Shaft Output Spiral Bevel Gearbox RAH-SS:Standard Precision Double Shaft Spiral Bevel Gearbox RAH-H:Standard Precision Hollow Shaft Spiral Bevel Gearbox RAH-D:Standard Precision Clamping Shaft Spiral Bevel Gearbox RAH-F: Standard PrecisionFlange Spiral Bevel Gearbox
k	Gearbox Frame Size	DH042, DH060, DH080, DH090, DH120, DH150… Refer to Gearbox Quick Selection Table Page 89.
l	Stages	L1, L2, L3
m	Planetary Gearbox Reduction Ratio	L1: 3 / 4 / 5 / 7 / 10 L2: 9 / 12 / 15 / 16 / 20 / 21 / 25 / 28 / 30 / 40 / 49 / 50 / 70 L3: 36 / 45 / 60 / 75 / 80 / 150 / 200 / 300 / 400 / 500 / 700 / 1000
n	Servo Motor Shaft Diameter (S)	Gearbox Customized according to customer requirement.
o	Servo Motor Pilot Diameter (B)	Gear box Customized according to customer requirement.
p	Servo Motor Guide Depth (P)	Gearbox Customized according to customer requirement.
q	Servo motor Installing Screw P.C.D (M)	Gear box Customized according to customer requirement.
r	Servo motor Installing Screw Size (A)	Gearbox Customized according to customer requirement.
s	Servo Motor Shaft Length (R)	Servobox Customized according to customer requirement.

Application of Planetary Gearbox

 

Planetary Gearboxes are used on high precision motion control application that require a high torque, high torsional stiffness and low backlash the specifics of which will vary by application.

 

Planetary gearboxes increase the torque by the stage of reduction ratio, making it possible to run the motor at a higher, more efficient speed.  The inertia reflected back to the motor is reduced for increased stability.  Using a planetary gearbox allow machine builders using a smaller, less expensive motion control package.

 

The application of planetary gearboxes covers the entire range of automation.  It's frequently found in "pick and place" systems, loading and unloading gantry robots, driving rotary and linear actuators, in packaging machineries, positioning tables in medical equipment. 

 

Applications Example

-AGV (Automatic guided vehicle)

- Packing Machine

- Conevyors

- Printing

Q: DH series planetary gearbox Reduction Ratio avaliable in single stage (L1) ?

A: 1:3, 1:4, 1:5, 1:7, 1:10

 

Q: DH series planetary gearbox Reduction Ratio avaliable in double stage (L2) ?

A:  1:9, 1:12, 1:15, 1:16, 1:20, 1:21, 1:25, 1:28, 1:30, 1:35, 1:40. 1:49, 1:50, 1:70

 

Q: DH series model number avaliable ?

A: DH042-L1, DH042-L2, DH060-L1, DH060-L2, DH060-L3, DH080-L1, DH080-L2, DH080-L3, DH090-L1, DH090-L2, DH090-L3, DH120-L1, DH120-L2, DH120-L3, DH150-L1, DH150-L2, DH150-L3

 

Q: What is the DH series APEX torque Planetary gearbox ?

A: 1680Nm for DH150

 

Q: What is the interchange Dynamics model for DH High precision gearbox

A: PAII 042 / PAII 060 / PAII 090 / PAII 115 / PAII 142 / PSII A / PSII B / PSII C / PSII D / PSII E

▍High Precision

DA

▍Precision

 

DM	DF	RAM-S	RAM-SS
RAM-H	RAM-D	RAM-F

 

▍Standard

 

DH	DL	DN	RAH-S
RAH-SS	RAH-H	RAH-D	RAH-F