CN2105420U

CN2105420U - Castor

Info

Publication number: CN2105420U
Application number: CN 91214560
Authority: CN
Inventors: 谢中全
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-31
Filing date: 1991-05-31
Publication date: 1992-05-27

Abstract

The utility model provides a universal wheel with facility, wear resistance and long service life under high load bearing. A core body and an interlayer-shaped ball-layer cavity which is wound around the core body and is included with balls are arranged in the shell of the universal wheel, the ball-layer cavity is divided into a pressure zone and a non-pressure zone, the balls are circulated between the pressure zone and the non-pressure zone, and the balls are rolled around an uncertainty shaft line which is positioned on the core body and is parallel to the uncertainty shaft line of a rolling wheel along the surface of the core body. The relative movement among the ball wheel and the balls which are contacted with the ball wheel surface in the shell and are borne the force completely realizes the pure rolling.

Description

Castor

The utility model relates to a kind of rolling machine, especially the direct cardan wheel by touchdown point of the line of force.

Employed cardan wheel and inquiry Chinese patent are all about the document of cardan wheel in living now, correlation technique is that contriver's notification number is CN2062289U in the utility model technology, application number is 892183063 described " not having the omnipotent cardan wheel of axle ", its cardinal principle is the organic cooperation by relatively-stationary major and minor track on the local location on the housing, make the ball wheel can obtain to be transmitted into the ball of main orbit all the time in break-in is advanced from secondary track, wherein the relative motion between the ball of part load and ball wheel and the housing is a pure rolling.But the disadvantage that it has two aspects can't exempt because of its structure itself: at first, in the cardan wheel motion process, the ball of load in the main orbit of every and ball wheel working direction form right angle, it can not realize pure rolling but slip with relative motion between ball wheel and the housing; Simultaneously, between the not quite identical but angled main orbit of all and ball wheel working direction, ball wherein and ball wheel and the relative motion between the housing can not realize pure rolling, but the slip of holding concurrently of rolling.This must make the wearing and tearing of cardan wheel internal friction and each parts can not drop to minimum level, thereby shortens the life-span of cardan wheel; And also influence the alerting ability of cardan wheel rolling and break-in.Secondly, because the certainly existing and all be positioned at ball wheel face opposite position of the space between major and minor track and the track, have only the ball in the main orbit to bear pressure, this structure itself must make pressure in this section on the ball relatively the concentrated area distribute, thereby pressure is bigger on the ball, so wearing and tearing are also just very fast, thereby make the cardan wheel lost of life.

The purpose of this utility model is: (1) provides a kind of cardan wheel, its any one piece ball that contacts with the ball wheel face and be subjected to ball wheel pressure, and when ball was taken turns any break-in and advanced, remaining with the relative motion between the ball wheel was pure rolling; (2) provide a kind of bear with prior art with the relative less cardan wheel of the pressure on the ball under the equipressure; (3) and then provide with brake equipment and make up, make up with newly-increased ball wheel, housing and the outer part that connects, cardan wheel with the friction wheel combination of reducing friction, and simultaneously and brake equipment, with newly-increased ball wheel, housing, outward connect part or with this three part of friction wheel in the cardan wheel of two parts or the combination of three parts.

For achieving the above object, the scheme that the utility model adopts is: at the endoceliac ball wheel face of the shell of similar cardan wheel opposite position a nucleome is set, the cavity of the sandwich-like between the inwall of the wall of nucleome and housing, ball wheel face in the shell constitutes ball layer cavity, and ball is distributed in wherein; The corresponding position of ball wheel face on the nucleome and in the shell be one when single layer ball coincide between the ball wheel face of ground cramping in nucleome and shell and the ball wheel face with the concave surface of the centre of sphere, constitute pressure zone between its relative ball wheel face in this concave surface and the shell, the remainder sandwich-like cavity formation non-pressure district in the ball floor cavity except that pressure zone; The ball that is positioned at the pressure zone load is the pressurized pearl, and the ball that is positioned at the non-pressure district is free pearl; The housing wall at place, non-pressure district arrives the distance of its relative nucleome wall greater than ball diameter; There is force-transmitting pole to make the two ground captive joint that coincide between the non-pressure district place nucleome housing relative with it; In the non-pressure district, have and reduce force-transmitting pole and divide the pearl body the guiding of the resistance of the free pearl in moving about; The structure that has each parts such as making housing, nucleome, ball, ball wheel, guiding point pearl body to put in place in the cardan wheel structure; The combined action that is subjected to the certain force of the certain pressure that transmits by the pressurized pearl from nucleome and other direction when ball wheel is rolled and when driving the pressurized pearl and rolling, free pearl is made a concerted effort in power that the pressurized pearl spreads out of or terrestrial gravitation or the two, and these several power general designations--the effect of strength of moving is moved down, and then all balls advance with any break-in of ball wheel all the time--universal movement and in ball floor cavity, successively enter the non-pressure district along the nucleome surface from pressure zone around the corresponding indefinite axis that is positioned on the nucleome with the indefinite parallel axes of ball wheel, wherein the part ball is walked around force-transmitting pole under the guiding of guiding branch pearl body, all ball successively enters pressure zone again, and ball rolls or moves and form circulation; Wherein, all between the interior ball wheel face of the pressurized pearl of loads and shell, and the relative motion between the nucleome concave surface be always pure rolling.

Such scheme makes up with brake equipment, constitutes a kind of cardan wheel.Stretch out the mouth in the shrinkage pool chamber in the concave surface of stop tongue from nucleome of this brake equipment and enter pressure zone and brake with the rolling that stops the pressurized pearl.

Above scheme is as device--the universal body of support ball wheel universal movement, and ball wheel and housing and the company's of locating part combination with newly-increased constitute another cardan wheel.

Above-listed various cardan wheel scheme only reduces the wheel of ball wheel direct contact position friction drag between its reverse side of advancing and housing wall purely with not bearing the pressure that the nucleome direction transmits--and the friction wheel combination reconstructs a kind of cardan wheel.The situation of friction wheel and arrangement thereof is: along the plane at ball wheel centre of sphere place and this plane perpendicular to straight line by ball core wheel and ball wheel touchdown point place, number is installed on the inner walls that is nested with ball wheel to be no less than 3 pieces and that arrange around the ball wheel equably, its fixed axis and to be positioned at the friction wheel on this plane, the ball wheel centre of sphere is on the extended planar on the plane at whole diameters place of arbitrary friction wheel, and friction wheel joins with the ball wheel face is identical.Relative motion between the friction wheel of this structure and the ball wheel is always pure rolling, thereby friction drag is little, and alerting ability is strong.

Such scheme nucleus, ball wheel face, nucleome concave surface, force-transmitting pole and between relative position, the preferred version of the structure that ball layer cavity and ball put in place is: the concave surface on the nucleome is for circular, and its center of circle is on the straight line by ball core wheel and ball wheel touchdown point; Be the convex structure with the opposing another side of concave surface on the nucleome, when nucleome be that axle is when rotating around the straight line by the concave surface center of circle and ball core wheel, arbitrary nucleome cross section perpendicular to axle is circle, and the convex sideline of convex structure angle in unit distance changes as much as possible little on the nucleome, thereby the surface that makes the convex structure of nucleome forms the curved surface of gentle slow transition, to reduce its resistance to the free pearl that moves about; The endoceliac ball wheel of shell area approaches half of the ball wheel gross area as far as possible, and nucleome upper recess surface area approaches its relative ball wheel face area, to increase the load area, reduces the pressure on the unit ball; The thickness of the non-pressure district ball floor cavity at free pearl place is slightly larger than ball diameter, hold the ball of monolayer alignment just, and its thickness is even; Force-transmitting pole is a cylinder that is positioned at the protruding top of nucleome convex structure, the center of circle and the ball core wheel of the concave surface on its post heart straight-line pass nucleome; Making ball on the cardan wheel is a hole that is positioned on the housing to bit architecture, and ball passes in and out ball layer cavity thus, has the stopper that all coincide with hole and shell internal face trend on the hole, and this hole and stopper are referred to as the stopple body.

Guiding divides the pearl body that three kinds of structures are arranged in the such scheme: (1) guiding divide the pearl body be when force-transmitting pole guaranteeing to bear cylindrical-shaped structure body thin as far as possible under the certain pressure condition, when ball-recirculation was moved about force-transmitting pole, column structure was convenient to ball around post and mistake.(2) guiding divide the pearl body by with columned force-transmitting pole coincide be nested and can around its flexibly rotation ring bodies, short carve shape or cone and long carve shape or cone is formed, above-mentioned two carve shape or cone bottom is fixedly connected on respectively on the outer ring surface at annulus diameter two ends, carve waist or awl waist and ring bodies outer ring surface is tangent, two trends of carving the same ball layer cavity around force-transmitting pole of the sensing of point or awl point match.When free pearl under the strength of moving effect around the nucleome circulation of moving about, promoting guiding simultaneously divides the weak point of pearl body to carve point or awl point and long point or the awl point carved, under the effect of lever balance power, make short point or the awl point carved meet free pearl colony all the time, thereby make free pearl colony along short sharp both sides shunting and mistake to afterwards.(3) guiding divides the pearl body to be made up of commutation post and commutation cavity, the commutation post constitutes by force-transmitting pole with long-neck ampuliform structure on its next-door neighbour's the nucleome, and the commutation cavity is by constituting at the ball layer cavity that static erectility is subjected to not allow ball to enter under the terrestrial gravitation effect when cardan wheel around the commutation post.The strength of moving that passes out with the adjacent pressurized pearl of free pearl in the pressure zone of its working direction side when ball wheel advances makes the free pearl of homonymy rise along the line of force, wherein the free pearl of part enters the commutation cavity, be positioned at ball simultaneously and take turns the free pearl of the reverse side of advancing under the combined action of gravity and the rotation of ball wheel, constantly enter pressure zone and reduce, thereby advancing, free pearl in the commutation cavity of ball wheel working direction side and ball wheel form drop between the free pearl of reverse side, when drop constantly acquires a certain degree, terrestrial gravitation makes the part free pearl of commutation in the cavity constantly fall into ball and takes turns on the free pearl of ball layer cavity of the reverse side of advancing, like this, ball is forming circulation in the pressure zone of ball floor cavity and non-pressure district under the strength of moving effect; This guiding divides pearl body front to avoid the resistance of force-transmitting pole, reaches the purpose that guiding is shunted.

Two of brake equipment kinds of concrete structures in the such scheme, its total parts are: shrinkage pool chamber, Spring Card, stop tongue, spring body, hauling rope, conductor rope spare and set body; The parts apokoinou construction of two kinds of concrete structures of brake equipment relation is: shrinkage pool chamber one brings out mouth and is positioned at concave surface on the nucleome, and other end outlet is positioned on the housing outer wall; The stop tongue is positioned among the shrinkage pool identically and can freely stretches out and retraction shrinkage pool chamber, and its tongue that is directed to the outlet one end stop tongue in the concave surface on the nucleome is cone tip shape, and Spring Card is fixedly located in the shrinkage pool chamber; One of spring body coincide with Spring Card in the shrinkage pool chamber and joins, and the other end and stop tongue are identical to join; Hauling rope one end is connected with the stop tongue, and the other end passes the outlet in the shrinkage pool chamber of spring body from the housing outer wall and draws, and it is connected with the set body after passing conductor rope spare again; The pin of captiveing joint with object in the hole that conductor rope spare is therefrom passed by hauling rope constitutes; The set body is made up of the daughter and the parent of mutual fastening, one of them links to each other with hauling rope, another part is then with the object captive joint, strains or when loosening hauling rope, the daughter of set body or parent are interlocked with parent of captiveing joint with object on the corresponding position or daughter.The distinguishing characteristics of two kinds of concrete structures of brake equipment is: (1) spring body snaps between the outlet in the shrinkage pool chamber in the nucleome upper recess surface at shrinkage pool chamber inner spring, when straining at the traction fag end, the stop tongue is subjected to hauling rope pulling and spring body is compressed, and the stop tongue is lived in retirement among the shrinkage pool chamber thereupon; When loosening the traction fag end, spring body stretches thereupon and the shrinkage pool accent of the stop the tip of the tongue in the nucleome concave surface is ejected the pressure zone that enters ball layer cavity, thereby reaches the purpose that makes the cardan wheel braking.(2) the spring body shrinkage pool chamber that is positioned at the nucleome upper recess surface exports on the extension of trend of Spring Card, the track that in the shrinkage pool chamber, moves at the stop tongue midway, the shrinkage pool chamber is with the shrinkage pool accent on the straight-through housing outer wall of turnout version; Hauling rope is connected at the bottom of the stop tongue; When hauling rope was in relaxed state, the stop tongue was pressed in the shrinkage pool chamber by spring body; When pulling traction rope, stop tongue compression spring body also ejects the stop the tip of the tongue from the shrinkage pool accent of nucleome concave surface and enters the pressure zone of ball layer cavity.

The utility model has following good effect: (1) since such scheme make on arbitrary position of any one piece of ball in ball layer cavity in the cardan wheel, advance and the change of direction and correspondingly change its motion and direction with ball wheel, and between any one piece of ball of load on the ball wheel face and ball wheel, and the nucleome concave surface between relative motion be pure rolling, it is minimum that this just makes that skimming wear drops to, thereby prolong the life-span of cardan wheel; (2) the shell endosphere wheel face of the utility model cardan wheel to be because the ball that gathers, thereby the load area is greatly increased, so the pressure that is subjected on every piece of ball reduces relatively, cardan wheel is therefore more wear-resisting, the life-span prolongation; (3) since the ball and ball wheel face of load between, and the nucleome concave surface between relative motion realized pure rolling fully, so its wiping resistance little, so the alerting ability of the rolling of the utility model cardan wheel and commutation is strong; (4) the utility model and brake equipment combination makes the motion of cardan wheel be more convenient for controlling; (5) make device--the universal body of support ball wheel universal movement with the utility model, it is with newly-increased ball wheel, housing and connect part outward and constitute a kind of novel universal wheel, and it is special in wheel to be suitable on the full size vehicle; (6) the utility model and friction wheel combination makes the cardan wheel motion more flexible.

Fig. 1 is the basic structure scheme drawing of the utility model cardan wheel;

Fig. 2 is the motion conditions scheme drawing of the utility model cardan wheel;

Fig. 3 divides the structural representation under the situation of pearl body in the guiding that adopts claim 3 for the utility model cardan wheel;

Fig. 4 divides the structural representation under the situation of pearl body in the guiding that adopts claim 4 for the utility model cardan wheel;

Fig. 5 divides the structural representation under the situation of pearl body in the guiding that adopts claim 5 for the utility model cardan wheel;

Fig. 6 is and the claim 6 of the utility model cardan wheel combination or 7 and the total block diagram of the brake equipment of

claim

6 or 8;

Fig. 7, Fig. 8 are respectively under the situation of brake equipment combination of the utility model cardan wheel and claim 6 or 7, and brake equipment is in the scheme drawing of not stop and stop two states;

Fig. 9, Figure 10 are respectively under the situation of brake equipment combination of the utility model cardan wheel and

claim

6 or 8, and brake equipment is in the scheme drawing of not stop and stop two states;

Figure 11 is the scheme drawing of the friction wheel combination of the utility model cardan wheel and claim 9;

Figure 12, the 13rd, with the utility model cardan wheel as universal body and newly-increased housing, ball wheel, outward connect part and with the scheme drawing of friction wheel combination.

As shown in Figure 1, the utility model cardan wheel by ball wheel 1, housing 5, ball layer cavity 8, ball 3, nucleome 2, force-transmitting pole 4, nucleome concave surface 6, guiding point pearl body 10, make the device 9 that ball puts in place and connect part 7 outward and form.

As shown in Figure 2, the utility model cardan wheel contains pressure zone 11, non-pressure district 12, pressurized pearl 13 and free pearl 14; When the ball wheel rolled, pressurized pearl 13 was pure rolling in pressure zone 11; Free pearl 14 moves about around nucleome along the nucleome surface; Pressurized pearl 13 constantly enters non-pressure district 12 from pressure zone 11 becomes free pearl 14, and free pearl 14 constantly enters pressure zone 11 and becomes pressurized pearl 13 from non-pressure district 12, and all balls form circulation in ball layer cavity.

As shown in Figure 3, the utility model cardan wheel adopts the guiding of claim 3 to divide pearl body 15.

As shown in Figure 4, the utility model cardan wheel adopts the guiding of claim 4 to divide pearl body 16.

As shown in Figure 5, the utility model cardan wheel adopts the guiding of claim 5 to divide the pearl body, and this guiding divides the pearl body to be made up of commutation post 17 and commutation cavity 18.

As shown in Figure 6, the utility model cardan wheel adopts the brake equipment of

claim

6 or 7 and 6 or 8 to be made up of the parent 25 of shrinkage pool chamber 19, stop tongue 20, spring body 22, Spring Card 21, hauling rope 23, conductor rope spare 24, set body and the daughter 26 of set body.

As shown in figure 11, the utility model cardan wheel and friction wheel 27 combinations.

As shown in figure 12, with the utility model cardan wheel as universal body 28 again with newly-increased housing, ball wheel with connect part outward and friction wheel is combined into a kind of novel universal wheel.

Claims

1, a kind of cardan wheel, take turns by ball, countless pieces of grades big but diameter form much smaller than the ball and the housing of ball wheel diameter, the part inwall of housing and constitute housing chamber with its adjacent that part of ball wheel face that coincide ball is wrapped in wherein, and another part sphere of ball wheel and housing coincide be nested and in the housing ball of exposed portions serve take turns sphere outside shell, the parts that are connected with other objects are arranged on the housing--connect part outward, under the effect that the ball wheel rolls, ball presents in the housing chamber and is subjected to ball wheel power and is not subjected to ball wheel power two states, and between this two states, circulating, thereby the universal movement of support ball wheel; In the cardan wheel structure, brake equipment can be arranged and reduce the device that ball is taken turns friction drag between its reverse side of advancing is with inner walls; It is characterized in that: at the endoceliac ball wheel face of shell opposite position a nucleome is set, the cavity of the sandwich-like between the inwall of the wall of nucleome and housing, ball wheel face in the shell constitutes ball layer cavity, and ball is distributed in wherein; The corresponding position of ball wheel face on the nucleome and in the shell be one when single layer ball coincide between the ball wheel face of ground cramping in nucleome and shell and the ball wheel face with the concave surface of the centre of sphere, constitute pressure zone between its relative ball wheel face in this concave surface and the shell, the remainder sandwich-like cavity formation non-pressure district in the ball floor cavity except that pressure zone; The ball that is positioned at the pressure zone load is the pressurized pearl, and the ball that is positioned at the non-pressure district is free pearl; The inner walls at place, non-pressure district arrives the distance of its relative nucleome wall greater than ball diameter; There is force-transmitting pole to make the two ground captive joint that coincide between the nucleome at place, the non-pressure district housing relative with it; In the non-pressure district, have and reduce force-transmitting pole and divide the pearl body the guiding of the resistance of the free pearl in moving about; The structure that has each parts such as making housing, nucleome, ball, ball wheel, guiding point pearl body to put in place in the cardan wheel structure.

2, cardan wheel according to claim 1 is characterized in that: the concave surface on the nucleome is for circular, and its center of circle is on the straight line by ball core wheel and ball wheel touchdown point; Be the convex structure with the opposing another side of concave surface on the nucleome, when nucleome be that axle is when rotating around the straight line by the concave surface center of circle and ball core wheel, arbitrary nucleome cross section perpendicular to axle is circle, and the angle variation of the convex sideline of convex structure in unit distance is as much as possible little on the nucleome, thereby makes the surface of the convex structure of nucleome form the gentle curved surface that delays transition; The endoceliac ball wheel of shell area approaches half of the ball wheel gross area as far as possible, and nucleome upper recess surface area approaches its relative ball wheel face area; The thickness of the non-pressure district ball floor cavity at free pearl place is slightly larger than ball diameter, hold the ball of monolayer alignment just, and its thickness is even; Force-transmitting pole is a cylinder that is positioned at the protruding top of nucleome convex structure, the concave surface center of circle and ball core wheel on its post heart straight-line pass nucleome; The structure that ball is put in place is a hole that is positioned on the housing, and ball passes in and out ball layer cavity thus, has the stopper that all coincide with hole and shell internal face trend on the hole, and hole and stopper are referred to as the stopple body.

3, cardan wheel according to claim 1 and 2 is characterized in that: it is to guarantee to bear cylindrical-shaped structure body thin as far as possible under the certain pressure condition when force-transmitting pole that this guiding is divided the pearl body.

4, cardan wheel according to claim 1 and 2, it is characterized in that: this guiding divide pearl body by with columned force-transmitting pole coincide be nested and can around its flexibly rotation ring bodies, short carve shape or cone and long carve shape or cone is formed, above-mentioned two carve shape or pyramidal bottom is fixedly connected on respectively on the outer ring surface at annulus diameter two ends, carve waist or awl waist and ring bodies outer ring surface is tangent, two trends of carving the same ball layer cavity around force-transmitting pole of the sensing of point or awl point match.

5, cardan wheel according to claim 1 and 2, it is characterized in that: this guiding divides the pearl body to be made up of commutation post and commutation cavity, the commutation post constitutes by force-transmitting pole with long-neck ampuliform structure on its next-door neighbour's the nucleome, and the commutation cavity is by constituting at the ball layer cavity that static erectility is subjected to not allow ball to enter under the terrestrial gravitation effect when cardan wheel around the commutation post.

6, according to the described cardan wheel of arbitrary scheme in the claim 1 to 5, it is characterized in that; This brake equipment is made up of shrinkage pool chamber, Spring Card, stop tongue, spring body, hauling rope, conductor rope spare and set body; In the concave surface of shrinkage pool accent one end on nucleome, the another port is positioned on the housing outer wall; The stop tongue is positioned among the shrinkage pool chamber identically and can freely stretches out and retraction shrinkage pool chamber, and its tongue that is positioned at the end that portals of the concave surface on the nucleome is cone tip shape; Spring Card is fixedly located in the shrinkage pool chamber; One of spring body coincide with Spring Card in the shrinkage pool chamber and joins, and the other end and stop tongue are identical to join; Hauling rope one end is connected with the stop tongue, and the other end passes spring body and draws from the shrinkage pool accent on the housing outer wall, and it is connected with the set body after passing conductor rope spare again; Conductor rope spare is made of with the pin of captiveing joint with object the hole that hauling rope therefrom passes; The set body is made up of the daughter and the parent of mutual fastening, and one of them links to each other with hauling rope, and another part is then with the object captive joint; Tension or when loosening hauling rope, the daughter of the set body of fag end or parent are interlocked with the parent of captiveing joint with object or the daughter of corresponding position; Stretch out the mouth in the shrinkage pool chamber in the concave surface of stop tongue from nucleome of this brake equipment and enter pressure zone and brake with the rolling that stops the pressurized pearl.

7, cardan wheel according to claim 6 is characterized in that: spring body is between shrinkage pool chamber inner spring snaps into shrinkage pool accent in the nucleome upper recess surface.

8, cardan wheel according to claim 6, it is characterized in that: spring body is positioned at the shrinkage pool accent of nucleome upper recess surface to the extension of the trend of Spring Card, the track that in the shrinkage pool chamber, moves at the stop tongue midway, the shrinkage pool chamber is with the shrinkage pool accent on the straight-through housing outer wall of turnout version; Hauling rope is connected at the bottom of the stop tongue.

9, according to the described cardan wheel of arbitrary scheme in the claim 1 to 8, it is characterized in that: the device that reduces ball wheel friction drag between its reverse side of advancing is with inner walls, be along the plane at ball wheel centre of sphere place and this plane perpendicular to straight line by ball core wheel and ball wheel touchdown point place, on the inner walls that is nested with ball wheel, install number be no less than 3 pieces and arrange around the ball wheel equably, its fixed axis is positioned at the friction wheel on this plane, the ball wheel centre of sphere on the extended planar on the plane at whole diameters place of any friction wheel and friction wheel join with the ball wheel face is identical.