CN2498120Y

CN2498120Y - Damping rolling cylinder

Info

Publication number: CN2498120Y
Application number: CN 01252973
Authority: CN
Inventors: 卓序
Original assignee: HUZHOU DEMA MACHINERY CO Ltd
Current assignee: HUZHOU DEMA MACHINERY CO Ltd
Priority date: 2001-08-07
Filing date: 2001-08-07
Publication date: 2002-07-03
Anticipated expiration: 2011-08-07

Abstract

A damping roller belongs to the technical field of the roller conveyor. A central axis is connected between the internal end of the end cover axis on one end of the roller shell and the central axis hole at the bottom of the inner cylinder tightly embedded in the inner wall of the roller shell, and the central wheel of the planet gear groups is arranged on the central axis, and each planet gear of the planet gear groups is meshed with the inner teeth of the inner cylinder, and a centrifugal brake consists of two centrifugal fins provided with a gravity block and a friction block respectively and a central gear pair, the central gear pair is movably sleeved on the central axis and meshed with the central gear or the planet gear of the planet gear groups. The utility model has the advantages of reasonable structure, automatic damp, no need of energy, enhancing the working efficiency and safety and reliability of the powerless gravity-type roller conveyor greatly.

Description

Damping rolling cylinder

Technical field

The utility model belongs to the roller conveyor technical field, relates to wherein a kind of vitals---roller.

Background technology

Be the slip velocity of restriction conveying object at present on unpowered gravity type boat davit roller conveyor, make and carry the comparatively steady and safety of operation, the way of generally taking is: 1. reduce the bevel angle of conveyer roller-way or set up one section level buffering roller-way on the inclined-plane roller-way; 2. shorten conveyer roller-way length; 3. use retaining means, but above-mentioned way all limits and has reduced the usefulness of conveyer to a certain extent.

Summary of the invention

The purpose of this utility model is to provide a kind of autoinhibition control apparatus for unpowered gravity type boat davit roller conveyor, conveyer is carried gently, the weight body is all steadily reliable thereby make, and this device does not need the consumption of power energy, needn't change the length of conveyer roller-way and bevel angle yet and influences the usefulness of conveyer.

The technical solution of the utility model is: it has the roller housing, end cap and end-cover axle, the end-cover axle of roller housing one end inner with the built-in bottom surface that closely is embedded in the roller inner walls on central shaft hole between be connected with center shaft, the center gear of planetary gear set is installed on the center shaft, each planetary wheel of planetary gear set is meshed with the internal tooth of built-in tube simultaneously, be respectively fitted with gravity block by two, the centrifugal brake that the centrifugal fin of friction shoe and centre tooth wheel set constitute, its center gear pair movable set is meshed on center shaft and with the sun gear or the planetary wheel of planetary gear set.

Description of drawings

Accompanying drawing 1 is the whole sectional structure scheme drawing of the utility model.

Accompanying drawing 2 is the A-A cross-sectional view of accompanying drawing 1.

Accompanying drawing 3 is the B-B cross-sectional view of accompanying drawing 1.

Accompanying drawing 4 is the C-C cross-sectional view of accompanying drawing 1.

Accompanying drawing 5 is a centrifugal brake skeleton structure scheme drawing of the present utility model.

Accompanying drawing 6 is installed on plan structure scheme drawing on the conveyer roller-way for the utility model.

Accompanying drawing 7 is installed on mounting structure schematic side view on the conveyer roller-way for the utility model.

The specific embodiment

Roller housing 4 is steels, and its two ends are provided with end cap 3, and is separately installed with end-cover axle 1 and end-cover axle 9 by bearing 2; The built-in tube that is provided with internal tooth 15 13 of engineering plastics system is embedded in roller housing 4 one end inwalls with flush fit; Built-in 13 bottom center bearing 2 is installed, is connected and installed with center shaft 14 between this bearing 2 and end-cover axle 9 the inners; The present embodiment planetary gear set is made of two groups of satellite gears, the wheel carrier 5 of one group of satellite gear is fixed in the leading section of center shaft 14, on wheel carrier 5, be evenly equipped with four planetary wheels 6 around center shaft 14, sun gear 7 movable sets of another group satellite gear mesh on center shaft 14 and with four planetary wheels 6 simultaneously, 8 in a pair of planetary wheel that is installed on sun gear support 16 back sides is meshed with the centre tooth wheel set 12 of centrifugal brake, also be provided with on the support 16 registration holes 17 is installed, a pair of planetary wheel 8 and four planetary wheels 6 also are meshed with the internal tooth 15 of built-in tube 13 simultaneously; The concrete structure of present embodiment centrifugal brake is, one end face of the centre tooth wheel set 12 of being made by engineering plastics extends the stays 23 of two band reinforced rib sheets 22 that are parallel to each other in the opposite direction, the end of stay 23 also is provided with limit opening groove 25, one end of two centrifugal fins 19 of half moon is fixedly connected on two bracing bars, 23 ends respectively, on the other end of two centrifugal fins 19 of half moon in the protruding 26 limit opening grooves 25 that intert relative stay 23 versatilely of set tenon, the outside of the fixed end of two centrifugal fins 19 and tenon nose also is respectively equipped with the hook 24 of extension spring 18, is respectively equipped with rivet hole 21 that gravity block 10 is installed and the spacer 20 that nylon friction shoe 11 is installed on the every centrifugal fin 19.

The utility model is installed on the elastic support 27 of conveyer roller-way both sides with the end-

cover axle

1,9 at its two ends, and makes this Damping rolling cylinder 28 a little more than adjacent two common roller 29 certain altitude H.When conveying articles glides when carrying through this Damping rolling cylinder 28 at a relatively high speed, goods forces down this roller with gravity, promote simultaneously this roller housing 4 and the fricton-tight friction rotation of goods again, and just rotate with internal tooth 15 transmission planetary gear set with roller housing 4 friction tight built-in tubes 13, planetary gear set drives the centrifugal brake high speed revolution again, when centrifugal brake reaches certain rotation speed, its centrifugal fin 19 promptly opens, make friction shoe 11 and the 4 inwall contact frictions of roller housing, thereby slow down or placed restrictions on the rotation of roller housing 4, this just hinders and has delayed the speed of advance of goods on the roller.And behind roller housing 4 rotation slowings or stop, the rotation of planetary gear set and centrifugal brake also slows down or stops thereupon, and centrifugal fin 19 draws in, and friction shoe 11 disengagings contact with roller housing 4 inwalls, so roller housing 4 rotates with slow degree, drives goods and advances with milder speed.

The utility model is rational in infrastructure, reliable operation, and autoinhibition does not need the energy, uses task performance and safety that it has improved the defeated machine of unpowered gravity type boat davit roller-way greatly.

Claims

1. Damping rolling cylinder, has the roller housing, end cap and end-cover axle, it is characterized in that roller housing (4) one end end-cover axle (9) inner with built-in (13) bottom surface that closely is embedded in the roller inner walls on central shaft hole between be connected with center shaft (14), the center gear of planetary gear set is installed on the center shaft (14), each planetary wheel of planetary gear set is meshed with the internal tooth (15) of built-in tube (13) simultaneously, be respectively fitted with gravity block (10) by two, the centrifugal brake that the centrifugal fin (19) of friction shoe (11) and centre tooth wheel set (12) constitute, its center gear pair (12) movable set and is meshed with the sun gear or the planetary wheel of planetary gear set on center shaft (14).

2. by the described Damping rolling cylinder of claim 1, it is characterized in that planetary gear set is made of two groups of satellite gears, the wheel carrier of one group of satellite gear (5) is fixed in the leading section of center shaft (14), upward be evenly equipped with four planetary wheels (6) at wheel carrier (5) around center shaft (14), sun gear (7) movable set of another group satellite gear is gone up and is meshed simultaneously with four planetary wheels (6) in center shaft (14), the a pair of planetary wheel (8) that is installed on sun gear support (16) back side then is meshed with the centre tooth wheel set (12) of centrifugal brake, and a pair of planetary wheel (8) and four planetary wheels (6) also are meshed with the internal tooth (15) of built-in tube (13) simultaneously.

3. by claim 1 or 2 described Damping rolling cylinders, an end face that it is characterized in that the centre tooth wheel set (12) of centrifugal brake extends two bracing bars (23) that are parallel to each other in the opposite direction, the end of stay (23) also is provided with limit opening groove (25), one end of two centrifugal fins (19) is fixedly connected on two bracing bars (23) end respectively, set tenon protruding (26) then interts in the limit opening groove (25) of relative stay (23) versatilely on the other end of two centrifugal fins (19), the fixed end of two centrifugal fins (19) and the tenon nose outside also are respectively equipped with the hook (24) of extension spring (18), are separately installed with gravity block (10) and friction shoe (11) on the every centrifugal fin (19).