CN210005166U

CN210005166U - upper rim driving device of tyre dynamic balance tester

Info

Publication number: CN210005166U
Application number: CN201920775095.2U
Authority: CN
Inventors: 王付勋; 王书全; 鞠兴阳; 安建东
Original assignee: Mesnac Co Ltd
Current assignee: Mesnac Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-01-31
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses an tire dynamic balance testing machine's last rim drive arrangement, include the stand that sets up along vertical direction and the last rim that is located stand side snatchs the mechanism, go up the rim and snatch the third end of mechanism and be used for moving along the extending direction of stand, go up the rim and snatch the second end suspension of mechanism, still include counter weight mechanism, counter weight mechanism is located and snatchs the side that the mechanism is opposite with last rim, counter weight mechanism snatchs the mechanism through chain and last rim and links to each other, snatch the mechanism slope in order to avoid going up the rim, the tie point that goes up the rim and snatch mechanism and stand snatchs the fulcrum that the mechanism was snatched the mechanism for last rim.

Description

upper rim driving device of tyre dynamic balance tester

Technical Field

The utility model relates to an experimental facilities technical field, in particular to tire dynamic balance testing machine's last rim drive arrangement.

Background

The tyre dynamic balance testing machine is a special detection device for full-automatic on-line testing of tyre dynamic balance performance, and a rim of the testing machine is of an upper split type and a lower split type, so that clamping of a tyre bead is facilitated. And in the testing process, the upper rim is lowered onto the lower main shaft and connected with the lower rim to clamp the tire bead.

The structure of dragon is difficult to assemble, the lead screw is parallel to the guide rail and difficult to align, and the coaxiality of the upper rim and the lower rim is difficult to ensure.

Therefore, how to ensure the coaxiality of the upper rim and the lower rim in the cantilever type structure is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing tire dynamic balance testing machine's last rim drive arrangement, it snatchs produced moment of flexure in the mechanism through counter weight device equilibrium gravity at last rim, avoids it to take place to incline.

In order to realize above-mentioned purpose, the utility model provides an last rim drive arrangement of tire dynamic balance testing machine, include along the stand that vertical direction set up and be located the last rim of stand side snatchs the mechanism, go up the rim and snatch the third end of mechanism and be used for following the extending direction of stand removes, go up the rim and snatch the second end suspension of mechanism, still include counter weight mechanism, counter weight mechanism be located with go up the rim and snatch the side that the mechanism is opposite, counter weight mechanism through the chain with go up the rim and snatch the mechanism and link to each other, in order to avoid go up the rim and snatch the mechanism slope.

Preferably, a support extending in the horizontal direction is arranged at the upper end of the upright column, two ends of the support are respectively located above the upper rim grabbing mechanism and above the counterweight mechanism, transition wheels are arranged at two ends of the support, and the chain bypasses peripheries of the transition wheels.

Preferably, the upper rim grabbing mechanism is provided with a connecting part on the upper end surface, the connecting part is located at the center of gravity of the upper rim grabbing mechanism, and the end of the chain is connected with the connecting part.

Preferably, the upright is cylindrical, and the weighting mechanism is located at side of the upright far away from the upper rim grabbing mechanism.

Preferably, the upright column comprises a counterweight cavity, and the counterweight mechanism is located in the counterweight cavity and in clearance fit with the counterweight cavity.

Preferably, the side wall of the counterweight cavity is provided with a guide groove along the vertical direction, and the end part of the counterweight mechanism is provided with a guide wheel which is matched with the guide groove so as to enable the counterweight mechanism to move along the guide groove.

Preferably, the counterweight mechanism comprises a counterweight box, and a plurality of counterweight blocks are arranged in the counterweight box.

Preferably, the weight box is the tube-shape, be equipped with the erection column in the weight box, the erection column with the upper end cover of weight box links to each other, the balancing weight is the disc, and is equipped with the via hole that runs through along the thickness direction, the position of via hole with the position of erection column is corresponding.

Preferably, a detection mechanism for detecting the balance condition of the bracket is arranged between the bracket and the upper end of the upright post.

Preferably, the device comprises a detection mechanism strain gauge and a calculation unit, wherein the strain gauge is positioned between the bracket and the upper end of the upright post to detect the deformation amount of the bracket, and the calculation unit is connected with the strain gauge to calculate the offset horizontal position of the bracket.

The utility model provides a tire dynamic balance testing machine's last rim drive arrangement, include the stand that sets up along vertical direction and the last rim that is located stand side and snatch the mechanism, go up the rim and snatch the end of mechanism and be used for moving along the extending direction of stand, go up the rim and snatch the mechanism second and hold the suspension, still include counter weight mechanism, counter weight mechanism is located snatchs the opposite side of mechanism with last rim, counter weight mechanism snatchs the mechanism through the chain with last rim and links to each other, snatchs the mechanism slope in order to avoid last rim.

The upper rim grabbing mechanism is connected with the stand column, and the connection point of the upper rim grabbing mechanism and the stand column is a fulcrum of the upper rim grabbing mechanism. Gravity makes the upper rim snatch the mechanism and produce around the moment of flexure of fulcrum pivoted, and counter weight mechanism links to each other with the upper rim snatchs the mechanism through the chain, and counter weight mechanism snatchs the mechanism through the chain to upper rim and exerts ascending pulling force effect, and this pulling force is opposite with gravity direction to can offset the produced moment of flexure of gravity, avoid the upper rim snatchs the mechanism and take place the slope.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a side view of an upper rim driving device of a tire dynamic balance testing machine provided by the present invention;

fig. 2 is a front view of the upper rim driving device of the tire dynamic balance testing machine provided by the present invention.

Wherein the reference numerals in fig. 1 and 2 are:

the upper rim grabbing mechanism comprises an upper rim grabbing mechanism 1, a chain 2, a transition wheel 3, a support 4, an upright post 5, a guide groove 6, a lead screw 7, a guide rail 8, a weight box 9, a balancing weight 10 and a guide wheel 11.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.

In order to make the technical field of the present invention better understand, the present invention is described in detail with reference to the accompanying drawings and the detailed description of the embodiments in .

Referring to fig. 1 and 2, fig. 1 is a side view of an upper rim driving device of a tire dynamic balance testing machine provided by the present invention; fig. 2 is a front view of the upper rim driving device of the tire dynamic balance testing machine provided by the present invention.

The utility model provides a tire dynamic balance testing machine's last rim drive arrangement, as shown in fig. 1 and fig. 2, snatch mechanism 1 including stand 5 and last rim the stand 5 sets up along vertical direction, it snatchs mechanism 1 and is located stand 5 side to go up the rim, be equipped with elevating system between the two, in this embodiment, elevating system includes lead screw 7, motor and guide rail 8, it is equipped with the connecting seat that links to each other with lead screw 7 to go up the end that the rim snatched mechanism 1, lead screw 7 rotates under the drive of motor, and then it snatchs mechanism 1 and reciprocates along stand 5 to promote to go up the rim through the connecting seat, guide rail 8 is located lead screw 7 and last rim and snatchs between the mechanism 1, it is concrete, the connecting seat is located guide rail 8, horizontal direction's effort can be applyed to the connecting seat to guide rail 8, it snatchs mechanism 1 and takes place to rotate at the removal in-.

The upper rim driving device further comprises a counterweight mechanism, as shown in fig. 1, the counterweight mechanism is located on the side opposite to the upper rim grabbing mechanism 1, the lifting mechanism is located between the lifting mechanism and the upper rim grabbing mechanism, the chain 2 bypasses the upper end of the lifting mechanism, two ends of the chain are respectively connected with the counterweight mechanism and the upper rim grabbing mechanism 1, the counterweight mechanism applies a pulling force to the chain 2 under the action of gravity, and then applies an upward pulling force to the upper rim grabbing mechanism 1, and the chain 2 can be a steel cable or a chain.

In this embodiment, the gravity of upper rim grabbing mechanism 1 self and the pulling force that chain 2 applyed form to the moment of flexure of mutual balance to make upper rim grabbing mechanism 1 be in the stress balance state, reduced the load of connecting seat, avoided upper rim grabbing mechanism 1 to take place the risk of slope.

Optionally, the upper end of the upright post 5 is connected with a support 4 arranged along the horizontal direction, two ends of the support 4 are respectively located above the upper rim grabbing mechanism 1 and the counterweight mechanism, two ends of the support 4 are respectively provided with transition wheels 3, and the chain 2 bypasses the peripheries of the two transition wheels 3.

Specifically, the chain 2 is a chain, and the transition wheel 3 is a transition chain wheel. Chain wheels are arranged at two ends of the support 4, and the chain 2 and the transition wheel 3 can be prevented from moving relatively through the matching of the chain and the transition chain wheels. Of course, the user may also select a steel cable as the chain 2 and a wheel with other structure as the transition wheel 3, which is not limited herein.

In addition, as shown in fig. 1, the upper end surface of the upper rim grabbing mechanism 1 is provided with a connecting part, the connecting part is provided with a connecting lug, the connecting lug and the center of gravity of the upper rim grabbing mechanism 1 are located on the same vertical straight line, the end of the chain 2 is connected with the connecting lug, and the end is connected with the counterweight mechanism, of course, the connecting lug can also be arranged on the straight line of the center of gravity of the counterweight mechanism and is connected with the chain 2 through the connecting lug.

In addition, as shown in fig. 2, the connecting portion may include two connecting lugs, the center of gravity of the upper rim grabbing mechanism 1 is located between the two connecting lugs, and two ends of the support 4 are both provided with two transition sprockets and distributed on two sides of the support 4. The number of the chains is also two, and the chains are respectively positioned at two sides of the bracket 4. The two chains are arranged, so that the load of each chain can be reduced, and the chain is prevented from being broken due to overlarge tension.

In this embodiment, stand 5 top has set up support 4, and the both ends of support 4 are located the upper rim respectively and snatch the top at mechanism 1 and counter weight mechanism center, go up the rim and snatch all to be equipped with the engaging lug on mechanism 1 and the counter weight mechanism. Two ends of the support 4 are provided with transition wheels 3, and the chain 2 bypasses the transition wheels 3 to be connected with the upper rim grabbing mechanism 1 and the connecting lugs on the counterweight mechanism, so that the counterweight mechanism can synchronously move along with the upper rim grabbing mechanism 1 in the lifting process. In addition, the connecting part is positioned right above the gravity center of the upper rim grabbing mechanism 1, the weight of the counterweight mechanism is the same as that of the upper rim grabbing mechanism 1, and energy consumption of the lifting mechanism during up-and-down movement of the upper rim grabbing mechanism 1 can be reduced.

Optionally, the upright column 5 is cylindrical, as shown in fig. 1, a guide hole penetrating through the upright column 5 in the thickness direction is formed in a side wall, close to the side of the upper rim grabbing mechanism 1, of the upright column 5, the guide rail 8 is located on two sides of the guide hole, a cavity is formed inside the upright column 5, the cavity is divided into a driving cavity and a counterweight cavity by a partition plate, the driving cavity is located on the side close to the upper rim grabbing mechanism 1, the lifting mechanism is located in the driving cavity, the counterweight cavity is located on the side far away from the upper rim grabbing mechanism 1, the counterweight mechanism is located in the counterweight cavity and is in clearance fit with the counterweight cavity, and the lifting mechanism drives the upper rim grabbing mechanism 1 to move in the vertical direction and simultaneously drives the counterweight mechanism to move in the vertical direction under the pulling of the.

Optionally, the inner side wall of the counterweight cavity is provided with a guide groove 6 extending in the vertical direction, the end of the counterweight mechanism is provided with a guide wheel 11, and the guide wheel 11 can be inserted into the guide groove 6 and enables the counterweight mechanism to move along the guide groove 6.

Specifically, the inner side walls of the two opposite sides of the counterweight cavity are provided with guide grooves 6, the lower ends of the guide grooves 6 are not higher than the lowest position which can be reached by the lower part of the counterweight mechanism, and the upper ends of the guide grooves 6 are not lower than the highest position which can be reached by the upper part of the counterweight mechanism. The upper part and the lower part of the counterweight mechanism are provided with two guide wheels 11 which are respectively inserted into the two guide grooves 6. The guide wheel 11 is connected with the counterweight mechanism through an arc-shaped connecting arm, and the connecting arm is bent towards the direction of the guide groove 6.

In this embodiment, stand 5 has set up the counter weight chamber, counter weight mechanism and counter weight chamber clearance fit, and the inside wall in counter weight chamber has set up guide way 6 simultaneously, and leading wheel 11 is installed to counter weight mechanism. In the process that the balance weight mechanism ascends and descends along with the upper rim grabbing mechanism 1, the balance weight cavity and the guide groove 6 can limit the balance weight mechanism in the radial direction and the circumferential direction, the balance weight mechanism is prevented from swinging or rotating, and vibration of the tire dynamic balance testing machine is reduced.

, the counterweight mechanism comprises a cylindrical counterweight box 9 and sheet-shaped counterweight blocks 10, the upper end and the lower end of the counterweight box 9 are respectively provided with an end cover, the counterweight box 9 is provided with a plurality of counterweight blocks 10, the total mass of the counterweight mechanism can be changed by changing the number of the counterweight blocks 10, and therefore the mass of the counterweight mechanism is equal to that of the upper rim grabbing mechanism 1.

Specifically, as shown in fig. 2, two mounting posts are arranged in the weight box 9 along the vertical direction, the upper ends of the two mounting posts are connected with the upper end cover of the weight box 9, the counterweight 10 is provided with a through hole penetrating through the counterweight along the thickness direction, and the position of the through hole corresponds to the position of the mounting post. During assembly, the mounting column can penetrate through the through hole, the end part of the mounting column is locked through a nut or a hoop and the like, and then the balancing weight 10 is fixed in the weight box 9.

In addition, the suspension lengths at the two ends of the support 4 are different, and the two ends of the support 4 are stressed unevenly in the process of moving the chain 2 back and forth, which may cause the support 4 to incline. In this embodiment, a detection mechanism is disposed between the support 4 and the upper end of the upright post 5 for detecting the balance condition of the support 4.

Specifically, a mechanism strain gauge and a calculation unit are detected, the strain gauge is located on the side wall of the joint of the support 4 and the upright post 5, the support 4 is inclined, the stress at the joint of the support 4 and the upright post can change, the strain gauge can timely find the change condition of the stress, the calculation unit is connected with the strain gauge, the strain gauge transmits the measured stress of the support 4 to the calculation unit, and the calculation unit calculates the deformation of the support 4 according to the stress of the support 4.

In this embodiment, install polylith balancing weight 10 in the counter weight portion, can guarantee through the quantity that changes balancing weight 10 that counter weight mechanism and last rim snatch 1 quality of mechanism equals. When the counterweight mechanism is installed on different tire dynamic balance testing machines, only the number of the counterweight blocks 10 needs to be changed, and the universality of the counterweight mechanism is improved.

It should be noted that in this specification, relational terms such as and second are used only to distinguish entities from other entities, and no requires or implies that any such actual relationship or order exists between the entities.

It is right above the utility model provides a tire dynamic balance testing machine's last rim drive arrangement introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

The upper rim driving device of tire dynamic balance testing machine comprises a vertical column (5) arranged in the vertical direction and an upper rim grabbing mechanism (1) located on the side of the vertical column (5) , wherein the end of the upper rim grabbing mechanism (1) is used for moving in the extending direction of the vertical column (5), and the second end of the upper rim grabbing mechanism (1) is suspended, and is characterized by further comprising a counterweight mechanism located on the side of opposite to the upper rim grabbing mechanism (1), and the counterweight mechanism is connected with the upper rim grabbing mechanism (1) through a chain (2) so as to prevent the upper rim grabbing mechanism (1) from inclining.
2. An upper rim drive according to claim 1 wherein the upper end of the upright (5) is provided with a bracket (4) extending horizontally, the two ends of the bracket (4) are respectively positioned above the upper rim gripping mechanism (1) and above the counterweight mechanism, the two ends of the bracket (4) are provided with transition wheels (3), and the chain (2) is wound around the outer peripheries of the transition wheels (3).
3. An upper rim drive according to claim 2 wherein the upper rim gripping means (1) is provided at its upper end with a connecting portion located at the centre of gravity of the upper rim gripping means (1), the end of the chain (2) being connected to the connecting portion.
4. An upper rim drive according to claim 2 wherein the upright (5) is cylindrical and the weight means is located on the side of the upright (5) remote from the upper rim gripping means (1).
5. An upper rim drive according to claim 4 wherein the upright (5) comprises a weight chamber and the weight mechanism is located in the weight chamber in a clearance fit therewith.
6. An upper rim drive according to claim 5 wherein the sidewall of the weight chamber is provided with a guide groove (6) in the vertical direction and the end of the weight means is provided with a guide wheel (11) which cooperates with the guide groove (6) to move the weight means along the guide groove (6).
7. An upper rim drive according to any one of claims 2 to 6 to wherein the weight mechanism comprises a weight box (9), the weight box (9) having a plurality of weights (10) disposed therein.
8. An upper rim drive according to claim 7 wherein the weight box (9) is tubular, wherein the weight box (9) has a mounting post therein, the mounting post is connected to an upper end cap of the weight box (9), the weight (10) is disc-shaped and has a through hole passing therethrough in the thickness direction, the through hole being positioned to correspond to the mounting post.
9. An upper rim drive according to claim 8 wherein sensing means are provided between the bracket (4) and the upper end of the upright (5) for sensing the balance of the bracket (4).
10. An upper rim drive according to claim 9 wherein a sensing means strain gauge is located between the bracket (4) and the upper end of the upright (5) to sense the amount of deformation of the bracket (4) and a calculating means is connected to the strain gauge to calculate the amount of deflection of the bracket (4) from the horizontal position.