CN202554791U

CN202554791U - Fire monitor slewing mechanism with worm and worm gear transmission

Info

Publication number: CN202554791U
Application number: CN2012202250332U
Authority: CN
Inventors: 廖建华
Original assignee: JIANGXI RONGHE SPECIAL FIRE FIGHTING EQUIPMENT MANUFACTURING Co Ltd
Current assignee: JIANGXI RONGHE SPECIAL FIRE FIGHTING EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2012-11-28
Anticipated expiration: 2022-05-18

Abstract

The utility model relates to a fire monitor slewing mechanism with worm and worm gear transmission and belongs to the field of industrial fire protection. The fire monitor slewing mechanism with worm and worm gear transmission is high in compressive strength, low in cost and simple to assemble, and comprises a worm gear, a worm gear base and a worm gear fixing part. The worm gear base is connected with a fire monitor body and made of alloy steel. The worm gear is movably connected with the worm gear base and made of copper alloy. The worm gear fixing part is connected with the worm gear through a pin shaft, welded with the worm gear base and made of alloy steel. Compared with the prior art, the fire monitor slewing mechanism has the advantages of being good in compressive strength and restoring torque, convenient to install due to the fact that the number of fault points is reduced, and low in manufacture cost due to the fact that alloy steel is adopted to replace unnecessary copper alloy.

Description

The fire monitor slew gear that a kind of worm and gear rotates

Technical field

The utility model relates to the fire monitor slew gear that a kind of worm and gear rotates, and is mounted in to use on the fire monitor, belongs to the industrial fire field.

Background technology

The type of fire monitor is very many on the existing market; But the mode of operation of rotating part is similar, and particularly the worm and gear transmission is very many, and the design of most worm and gears all is the processing of worm gear employing copper alloy; Worm screw is then adopted steel alloy processing; It is wrong that this design does not have, but all be that whole worm gear body all is a copper alloy basically, and being used in like this on the fire monitor of normal phase pressurized all is irrational on its strength assurance coefficient and manufacturing cost.Because fire monitor is a kind of spraying equipment, it is using the supply pressure that not only will bear in the pipe, also will bear the reaction force that can produce when fire monitor sprays; Because the tensile strength not enough steel alloy far away of copper alloy so will rupture at thin location when long-term use causes copper alloy to produce tired words, causes unnecessary unexpected and loss; As in order to strengthen its tensile strength, be difficult for producing fatigue and thickened material thickness will cause on cost, to have greatly increased like this, also be irrational selection; And copper alloy connects with adopting non-Type of Welding being connected of steel alloy fire monitor body; Because copper alloy and steel alloy do not possess the weldering of closing performance; Connect big gun body and worm gear so generally can increase the nipple of a steel part; Many so again trouble points that may produce leakage, and also can bring inconvenience at fit on.

Summary of the invention

The purpose of the utility model provides that a kind of compressive strength is higher, cost is lower, the fire monitor slew gear of the better simply worm and gear transmission of assembling.

For realizing above-mentioned purpose, the utility model adopts following technical scheme: the fire monitor slew gear that a kind of worm and gear rotates, comprise worm gear, worm gear seat, worm gear fixture, and said worm gear seat is connected with the fire monitor body, and its material is a steel alloy; Said worm gear and said worm gear seat flexibly connect, and its material is a copper alloy; Said worm gear fixture adopts bearing pin to be connected with said worm gear, and welds with said worm gear seat, and its material is a steel alloy.

Because fire monitor inside is flow tube, must guarantee its latus rectum, so adopt latus rectum consistent with big gun body latus rectum, external diameter satisfies the alloy pipe of the calculation Design value of worm gear, and so just forming two ends is steel alloys, and the centre is the worm gear body of copper alloy; With an end of worm gear body be connected the welding of big gun body, the other end worm gear overcoat of packing into, worm gear body and worm gear overcoat all are processed with the deep-slotted chip breaker of placement steel ball; After being installed, fixes by steel ball; At the sealing ring that water inlet end is established, guarantee after fire monitor supplies water, can water not oozed out, also be provided with sealing ring at the port of export; Guarantee that worm gear body and worm screw are inner clean, play dustproof effect; The two ends of worm screw all are provided with bearing, guarantee assembling accomplish after with worm gear body keeping parallelism with vertical.

The utility model and prior art contrast have following advantage:

1, worm gear body overcurrent part is consistent with fire monitor body material, compressive strength, receives the moment of reaction better.

2, worm gear body and big gun body possess weldability, reduce the fault point, and install more convenient.

3, adopt steel alloy to replace unnecessary copper alloy, manufacturing cost is lower.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation that the utility model and worm screw are used.

The specific embodiment

Do further detailed description below in conjunction with 1,2 pairs of the utility model of accompanying drawing: the fire monitor slew gear that a kind of worm and gear rotates, comprise worm gear 5, worm gear seat 2, worm gear fixture 7, said worm gear seat 2 is connected with the fire monitor body, and its material is a steel alloy; Said worm gear 5 adopts with said worm gear seat 2 and is threaded, and its material is a copper alloy; Said worm gear fixture 7 adopts bearing pin 6 to be connected with said worm gear 5, and welds with said worm gear seat 2, and its material is a steel alloy.

Worm gear seat 2, worm gear 5 and worm gear fixture 7 are connected as a single entity and are processed into the worm gear body, top welding fire monitor body, the bottom is fitted into worm gear set 4; By dust ring 3 and sealing ring 9 sealings; The two row's steel balls 8 of packing into, and seal mouth with lubricating cup 1, inlet connecting plate 10 connects fire monitors and enters the mouth; After worm gear assembling is accomplished with worm screw 14 worm set 15 of packing into; The worm screw tail bearing 13 of packing into from the left side; Seal and fixing with worm screw upper shield 12 with hold-down screw 11, the left side worm screw head bearings 16 of packing into, and fix with bearing gland 17; Load onto operation handwheel 18 at last, make the fire monitor revolution thereby so just can operate handwheel.

Claims

1. the fire monitor slew gear that worm and gear rotates comprises worm gear (5), worm gear seat (2), worm gear fixture (7), and it is characterized in that: said worm gear seat (2) is connected with the fire monitor body, and its material is a steel alloy;

Said worm gear (5) flexibly connects with said worm gear seat (2), and its material is a copper alloy; Said worm gear fixture (7) adopts bearing pin to be connected with said worm gear (5), and welds with said worm gear seat (2), and its material is a steel alloy.

2. the fire monitor slew gear that worm and gear according to claim 1 rotates is characterized in that: said worm gear (5) adopts with said worm gear seat (2) and is threaded.