CN2665467Y

CN2665467Y - Mechanical reduction box

Info

Publication number: CN2665467Y
Application number: CNU2004200168095U
Authority: CN
Inventors: 黄汉
Original assignee: WUHAN XINGHAN LIXIANG ENERGY-SAVING EQUIPMENT Co Ltd
Current assignee: WUHAN XINGHAN LIXIANG ENERGY-SAVING EQUIPMENT Co Ltd
Priority date: 2004-01-01
Filing date: 2004-01-01
Publication date: 2004-12-22
Anticipated expiration: 2014-01-01

Abstract

Disclosed is a mechanical reduction box for boiler endless grate dragging, aiming at solving the problem of small dragging torque, low drive efficiency and short service life of the prior art due to unreasonable design. A DC motor in the reduction box is connected with an internal toothed resilient coupling, a plurality of connection shafts and meshed gear, transferring the drive force progressively and finally outputting large torque with a low rotation speed by an output gear. The security, reliability and service life is more improved than the prior art.

Description

The mechanical reduction case

Technical field

The utility model relates to the annex of industrial boiler, particularly a kind ofly is used for the mechanical reduction case that the boiler traveling-grate stoker drags.

Background technique

Original first generation boiler governing box is the purpose that reaches step speed regulation with artificial gear; The second generation is the purpose that reaches manual stepless speed regulation with SCR control; The mechanical reduction case of wherein original second generation product is to adopt planetary mechanism, and module is little, design unreasonablely, thereby it is little to drag moment of torsion, and transmission efficiency is low, and lack working life, and mechanical failure is frequent, can not satisfy boiler producer and user's usage requirement far away.

Summary of the invention

The purpose of this utility model provide a kind of rational in infrastructure, transmission efficiency is high, output torque is big, long service life, safe and reliable mechanical reduction case, in effectively dragging for use in industrial boiler is chain fire-gate.

In order to realize the purpose of this utility model, intend taking following technological scheme:

The utility model is comprising casing, support are arranged, it is characterized in that: the direct current generator 1 in it links to each other by one 3 in internal tooth form elastic coupling flexible coupling 2 and the high-speed gear box, be connected to two 4 through two, three shaftgears 6 again, simultaneously be connected to three 5 through two, three shaftgears 6, gear 7 on it is connected to four shaftgears 8, be connected to the gear 9 in the low speed gear case again, be connected on worm screw 11 and the worm gear 12 thereof, be connected to output gear 14 by five shaftgears 13 again through castellated gearing device 10.

The next door of above-mentioned castellated gearing device 10 also is provided with a ST position limit switch 15.

Advantage of the present utility model is simple and reasonable, has adopted the transmission of Pyatyi straight-tooth in it, can reach the transmission efficiency height, output torque is big, and long service life is safe and reliable, and have characteristics such as beautiful shape, volume is little, installation and maintenance are convenient, noise is low, can realize zero failure.

Description of drawings

Fig. 1 is a product transmission principle schematic representation

Fig. 2 is the product structure schematic representation

Fig. 3 is the side view of Fig. 2

Fig. 4 is that the A-A of Fig. 2 cuts open schematic representation

Fig. 5 is that the B-B of Fig. 2 cuts open schematic representation

Embodiment

The disclosed structure of above accompanying drawing is a specific embodiment of the present utility model.Among the figure, the parts that each label is represented are: 1. direct current generator; 2. internal tooth form elastic coupling flexible coupling; 3. one; 4. two; 5. three; 6. two, three shaftgears; 7. three shaftgears; 8. four shaftgears; 9. the gear in the low speed gear case; 10. castellated gearing device; 11. worm screw; 12. worm gear; 13. five shaftgears; 14. output shaft gear; 15.ST position limit switch.

As shown in Figure 1, the rotating speed of direct current generator 1 reaches in high-speed gear box one 3 through internal tooth form elastic coupling flexible coupling 2, reach two 4 through two, three shaftgears 6, reach three 5 through two, three shaftgears 6 then, reach four shaftgears 8 through three shaftgears 7, import into again on the gear 9 in the low speed gear case, reach worm screw 11 to worm gear 12, reach the output shaft gear 14 output slow-speed of revolution, high pulling torque by five shaftgears 13 again through castellated gearing device 10.

When in a single day fire grate is blocked, drag moment of torsion and increase, the disengagement of will skidding of castellated gearing device 10 is bumped ST position limit switch 15 and is cut off the electricity supply, thereby can protect the security of operation of mechanical reduction case.

Claims

1, a kind ofly be used for the mechanical reduction case that boiler grate drags, comprising casing is arranged, support, it is characterized in that: the direct current generator (1) in it links to each other with (3) in the high-speed gear box by internal tooth form elastic coupling flexible coupling (2), again through two, three shaftgears (6) are connected to two (4), simultaneously through two, three shaftgears (6) are connected to three (5), gear on it (7) is connected to four shaftgears (8), be connected to the gear (9) in the low speed gear case again, be connected on worm screw (11) and the worm gear (12) thereof through castellated gearing device (10), be connected to output gear (14) by five shaftgears (13) again.

2, by the described mechanical reduction case of claim 1, it is characterized in that: the next door of above-mentioned castellated gearing device (10) also is provided with a ST position limit switch (15).