CN201364225Y - Pipe roller three-section dynamic balance device - Google Patents

Abstract

The utility model discloses a dynamic balance device, in particular to a pipe roller three-section dynamic balance device, which is characterized in that the centers inside the two support points of a pipe roller are fixedly provided with balance rings with counter balances, and the choke plugs on the two sides of the pipe roller are provided with counter balances to form a third balanced surface, and the third balanced surface can not only simultaneously balance the mass of the two end faces, but also can balance the vibration unbalance vector generated during the high speed running of the pipe roller. The pipe roller three-section dynamic balance device can efficiently reduce the vibration unbalance, make the pipe roller rotate stably to reach the standard required by engineering, and can be widely applied for the balance of the pipe roller of the papermaking mechanical equipment, the printing equipment and the like.

Description

Three sections dynamic poise devices of a kind of pipe roller

Technical field

The utility model relates to a kind of dynamic poise device of proofreading and correct in the pipe roller rotation process, particularly proofreaies and correct three sections dynamic poise devices of dynamically balanced a kind of pipe roller in the pipe roller rotation process simultaneously in pipe roller three fragment position.

Background technology

For a long time, it is the equilibrium principle of rigid roller that the transient equilibrium of pipe roller all is based on the pipe roller, i.e. the amount of unbalance vector of roller, can be decomposed into two end amount of unbalances vector and, the imbalance of quality (power and couple) is the dynamically balanced principal element of pipe roller.There are certain mistaken ideas in such viewpoint, and the one, common pipe roller is an accurate rigid body, so it more or less all can have certain amount of deflection under the situation of two end supports; The 2nd, the amount of unbalance of pipe roller is made up of two parts, i.e. the unbalance dynamic vector of the unbalance vector of quality (this is identical with rigid roller) and the shape of shaking (or being called the dynamic deflection unbalance vector).When managing roller, it is regarded as a rigid roller is fine at low-speed motion.But along with the development of Science and Technology, the length of pipe roller is continuing to increase, and working speed is improving constantly.When rotating speed met or exceeded a certain rotating speed, basic variation had just taken place in situation.At this moment the imbalance of quality (power and couple) is unbalanced principal element no longer just, and the unbalance dynamic vector of the shape of shaking rises to principal contradiction.In practice in the past, a pipe roller usually occurring is the balance of power and couple when all reaching requirement in quality, and it is very big dynamic deflection still to occur, roll vibration, the phenomenon of cisco unity malfunction.The method of traditional adjustment vibration generally is to install counterbalance weight additional at the roller two ends.But when pipe roller length overlength, as more than 3 meters, also bigger vibration can appear even add counterbalance weight at two ends.

The utility model content

The utility model purpose provides a kind of simple in structure, highly versatile, easy to maintenance, safe and reliable three sections dynamic poise devices of pipe roller.Fully overcome the deficiencies in the prior art.

The technical scheme that the prior art problem that solves the utility model is adopted is: fixedly install gimbal at the inside center place of two strong points of managing roller and install counterbalance weight additional, pipe roller both sides silently install counterbalance weight additional.At least have 4 through holes silently, its diameter is 30-60mm.Gimbal is fixedlyed connected with the friction force of roller shell inwall by its pushing out ring.Gimbal is becket or stainless steel ring.Three sections dynamic poise devices of a kind of pipe roller, mainly by spindle nose, silently, roller and gimbal are formed, it is characterized in that: pipe roller two ends spindle nose is solidly connected with endoporus wringing fit silently respectively, the roller endoporus is solidly connected with cylindrical wringing fit silently, the inside center place of two strong points of pipe roller is fixedly connected with a gimbal, pin and the pushing out ring that is connected thereof are connected with body of clasp flexible fastening position by spring respectively, pushing out ring is connected with the friction force fixed bit by elastic force with the roller inwall, the inner equilibrium piece is solidly connected by skewback and body of clasp plug-in type, be connected with roller inwall wringing fit is alive, silently be provided with 4 penetrating baffle holes.

The utility model compared with prior art in the unbalance vector that solves quality (power and couple), is considered the unbalance dynamic vector that balance is shaken shape; A gimbal is placed at inside center place at two strong points of managing roller, thereby form the 3rd balanced surface, this balanced surface both can carry out mass balance to two end faces simultaneously, the more important thing is and can carry out balance to the shape unbalance vector that shakes that the pipe roller produces when the high speed.If measure the position of the high point of the arc of pipe roller at the middle part, then on the gimbal of the offside of height point, add a counterbalance weight, because the direction of the centrifugal force that counterbalance weight produces is opposite with the direction of the shape out-of-balance force that shakes, the shape of shaking is uneven reduces thereby can make effectively, make its stability of rotation, reach the degree that engineering allows, this device is widely used in the pipe roller balance of papermaking equipment equipment, printing equipment etc.

Description of drawings

Fig. 1 is a structure construction synoptic diagram of the present utility model;

Fig. 2 is the structural drawing of the utility model gimbal;

Fig. 3 is dynamic balance principle figure of the present utility model;

Fig. 4 is an A-A sectional view among Fig. 2;

Fig. 5 is structure construction synoptic diagram silently.

Among the figure, 1, spindle nose, 2, silently, 3, roller, 4, gimbal, 5, outer counterbalance weight, 6, pushing out ring, 7, pin, 8, spring, 9 body of clasp, 10, the inner equilibrium piece, 11, skewback, 12, baffle hole, 13, equalizing port silently.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing

As shown in Figure 3, the single order that the pipe roller the reaches balance shape of shaking is an arc, and the centrifugal force of object is and square being directly proportional of velocity of rotation.Shown in Fig. 1,3, pipe roller two ends spindle nose 1 is solidly connected with 2 endoporus wringing fits silently respectively, and roller 3 endoporus are solidly connected with 2 outer garden wringing fits silently, and the inside center place of managing two strong points of roller is fixedly connected with a gimbal 4.Gimbal 4 is made up of body of clasp 9 and 4 stationary installations and 1-2 balance device.Body of clasp 9 first-class branches are provided with four stationary installations, and wherein pin 7 and the pushing out ring 6 that is connected thereof are connected with body of clasp 9 flexible fastening positions by spring 8 respectively, and pushing out ring 6 is connected with the friction force fixed bit by elastic force with roller 3 inwalls.As shown in Figure 4, body of clasp 9 is provided with 1-2 balance device, and promptly inner equilibrium piece 10 is solidly connected by skewback 11 and body of clasp 9 plug-in types, and living with roller 3 inwall wringing fits is connected.As shown in Figure 5, silently 2 be provided with 4 penetrating baffle holes 12, in order to adjust or to install gimbal 4, arranged outside has 4-8 silently equalizing port 13, in order to fix and to install additional outer counterbalance weight 5.

Be described further below in conjunction with embodiment and concrete installation and application.

Gimbal 4 at first is installed, is stuck in the strip hole on the pin 7 with the four paws on the locking ring installer during assembling, spring 8 is shunk, this moment pushing out ring 6 external diameters less than roller 3 internal diameters, after gimbal 4 is put into the position, locking ring installer pulled out gets final product.Should note when gimbal 4 is installed: 1. body of clasp 9 external diameters and roller shell 3 internal diameters differ 20 millimeter; 2. the external diameter of pushing out ring 6 is identical with roller shell 3 internal diameters, and thickness is 5mm, welding between it and the pin 7; 3. the elastic force of compression spring 8 will guarantee between snap ring and pipe roller inwall enough friction force is arranged; 4. determine when counterbalance weight 10 sizes are by balance that wedge 11 can be made standard, counterbalance weight 10 is variable; 5. gimbal 4 usefulness specific purpose tools are put into, and will note position and angle when putting into, and are difficult for moving in case put well; 6. work under wet environment as the pipe roller, the part of gimbal 4 will select stainless steel material.

Secondly install silently 2 and spindle nose 1, at dress silently before 2, gimbal 4 is adopted pack into the centre position of roller 3 of gimbal erecting tools, silently at least four through holes will be arranged on 2.From then on this hole also will be sent to inner equilibrium piece 10 and skewback 11 on the gimbal 4 fixing in the hole except that the ventilation effect of when work.Therefore when assembling, to make silently insert inner equilibrium piece 10 and skewback 11 on hole 12 and the gimbal 4 on 2 the position point-blank, assemble silently 2 and spindle nose 1 after, the whole pipe roller that processes is carried out transient equilibrium checks.

The 3rd step verification, during the transient equilibrium of check pipe roller, balance 5 outside silently 2 two ends add makes it reach the residual unbalance, of engine request earlier; And then the dynamic deflection at measuring tube roller middle part, and definite maximum moving scratching a little, if deflection value exceeds engine request (vibration of managing roller this moment also correspondingly increases), at this moment on the opposite of maximum defluxion point gimbal 4, add counterbalance weight 10, the amount of unbalance that records in the middle of its weight equals; After the centre adds counterbalance weight 10, satisfying single order that the pipe roller the reaches balance shape of shaking is arc, need reduce the weight of the outer counterbalance weight 5 at two ends, and the value that every end deducts is approximately half of inner equilibrium piece 10, at this moment just can obtain a stability of rotation, dynamic deflection meets the pipe roller of engine request.

Claims (4)

1, three sections dynamic poise devices of a kind of pipe roller, mainly by spindle nose (1), silently (2), roller (3) and gimbal (4) are formed, it is characterized in that: pipe roller two ends spindle noses (1) are solidly connected with (2) endoporus wringing fit silently respectively, roller (3) endoporus is solidly connected with (2) cylindrical wringing fit silently, the inside center place of two strong points of pipe roller is fixedly connected with a gimbal (4), pin (7) and the pushing out ring (6) that is connected thereof are connected with body of clasp (9) flexible fastening position by spring (8) respectively, pushing out ring (6) is connected with the friction force fixed bit by elastic force with roller (3) inwall, inner equilibrium piece (10) is solidly connected by skewback (11) and body of clasp (9) plug-in type, be connected with roller (3) inwall wringing fit is alive, silently (2) are provided with 4 penetrating baffle holes (12).

2, dynamic poise device according to claim 1 is characterized in that: silently (2) arranged outside has 4-8 silently equalizing port (13).

3, dynamic poise device according to claim 1 is characterized in that: the position of upward slotting inner equilibrium piece (10) of baffle hole (12) and gimbal (4) and skewback (11) point-blank.

4, dynamic poise device according to claim 1 is characterized in that: gimbal (4) is made up of body of clasp (9) and 4 stationary installations and 1-2 balance device.

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