CN210715750U

CN210715750U - Gear static torque applying device

Info

Publication number: CN210715750U
Application number: CN201921559508.XU
Authority: CN
Inventors: 蒋玲莉; 周浩; 李学军; 王道勇; 肖冬明; 张文灿
Original assignee: Foshan University
Current assignee: Foshan University
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-09
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a device is applyed to gear static torque, which comprises a fixing plate and i, first support, the second support, first gear, the second gear, rotate locking mechanism and torque application mechanism, first support and second support all are vertical installation on the fixed plate, the axle center of first gear is rotated through the upper portion of pivot with the second support and is connected, the axle center of second gear is rotated through the upper portion of pivot with first support and is connected, torque application mechanism includes lever and couple counterweight disc, be equipped with between the lateral wall of the one end of lever and second gear and rotate locking member, the couple counterweight disc articulates in the other end of lever. The size of the applied torque is adjusted by adjusting the hanging position of the hook counterweight plate or placing different counterweights, the rotating position of the first gear can be fixed by the rotating locking mechanism, and the rotating position of the lever can be fixed by the rotating locking member, so that the adjustment of the torque stress point of the gear pair in the process of one period of meshing and the change of the meshing position can be realized.

Description

Gear static torque applying device

Technical Field

The utility model relates to a mechanical engineering design and equipment test, in particular to device is applyed to gear static torque.

Background

The gear system is widely applied to the fields of machine tools, vehicles, aerospace and the like, and is a power and motion transmission device which is most widely applied to mechanical systems. The vibration, shock and noise characteristics of gear systems are the major concerns of high performance gear transmissions, and variations in mesh stiffness are one of the major factors that contribute to the occurrence of vibration, shock and noise in gear systems. Various test schemes have been proposed for measuring the static engagement stiffness, but the torque application device is too complex for static measurement. According to the novel cylindrical gear meshing rigidity static measuring device (201821029911.7), the applied torque is measured by the torque measuring wrench and then adjusted, the structure is complex, the applied force is low in precision, and the control is not good.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the gear static torque applying device is simple in structure and convenient to apply torque.

The utility model provides a solution of its technical problem is:

a gear static torque applying apparatus comprising: a fixing plate; the first bracket is vertically arranged on the fixed plate; the second bracket is vertically arranged on the fixed plate, and the second bracket and the first bracket are arranged at intervals; the axle center of the first gear is rotationally connected with the upper part of the second bracket through a rotating shaft; the rotation locking mechanism can fix the rotation position of the first gear, and the rotation locking member is arranged between the first gear and the second bracket; the axle center of the second gear is rotationally connected with the upper part of the first bracket through a rotating shaft, and the second gear is meshed with the first gear; the torque applying mechanism comprises a lever and a hook balance weight disc, wherein a rotation locking member is arranged between one end of the lever and the outer side wall of the second gear, the rotation locking member can fix the rotation position of the lever, the hook balance weight disc is connected to the other end of the lever in a hanging mode, and the axial direction of the lever is consistent with the radial direction of the second gear.

The utility model has the advantages that: when measuring static meshing rigidity between first gear and the second gear, it is fixed through rotating locking mechanism the rotational position of first gear has placed the balancing weight on couple counterweight disk to the realization is to the loading of second gear torque, perhaps place different balancing weights and adjust the counter weight size through the position that adjustment couple counterweight disk articulated, both be the size that the torque was applyed in the adjustment, and then can satisfy different operating modes, still can rotate first gear and second gear and adjust the meshing position between the two, and fixed through rotating the rotational position of the fixed first gear of locking mechanism and through rotating locking member the rotational position of lever realizes the adjustment of the torque stress point when the meshing process of a gear pair cycle and meshing position change, simple structure, be convenient for apply the torque.

As a further improvement of the above scheme, the rotational locking mechanism includes a locking disk, the locking disk is fixedly mounted on the upper portion of the second support, the locking disk and the first gear are coaxially arranged, a circle of first positioning holes annularly arrayed with the axis of the locking disk as the center of a circle are arranged on the side wall of the locking disk, a second positioning hole is arranged on the first gear, the second positioning hole and the corresponding first positioning hole are coaxially arranged, and a first positioning pin shaft is inserted between the second positioning hole and the corresponding first positioning hole. When the first gear needs to be rotated, the first positioning pin shaft is pulled out, after the first gear is rotated for a certain angle and the second positioning hole is coaxial with the corresponding first positioning hole, the first positioning pin shaft is inserted between the second positioning hole and the corresponding first positioning hole, and the rotating position of the first gear is fixed.

As a further improvement of the above scheme, the first positioning hole has a plurality of circles, the plurality of circles of the first positioning hole are sequentially distributed outward from the axis of the locking disk, the second positioning hole has a plurality of pairs, each pair of the second positioning holes is centrally symmetric with respect to the axis of the first gear, the plurality of pairs of the second positioning holes are sequentially distributed outward from the axis of the first gear, and the plurality of pairs of the second positioning holes correspond to the plurality of circles of the first positioning holes one by one. The fixing of the rotating position of the first gear is realized through a plurality of pairs of second positioning holes and a plurality of circles of first positioning holes, the stability of fixing the first gear can be improved, and then larger torque can be applied.

As a further improvement of the above-mentioned solution, the rotational lock member includes a plurality of pairs of third positioning holes provided on a side wall of the second gear and a pair of fourth positioning holes provided on the lever, each pair of the third positioning holes is centrally symmetric with respect to an axis of the second gear, all the third positioning holes are annularly arranged at intervals around the axis of the second gear, a pair of the fourth positioning holes are arranged at intervals along an axis of the lever, a pair of the fourth positioning holes and a corresponding pair of the third positioning holes are coaxially arranged in a one-to-one correspondence, and a second positioning pin is inserted between each of the fourth positioning holes and the corresponding third positioning hole. When the second gear needs to be rotated or the applied torque needs to be adjusted, the second positioning pin shaft can be pulled out from the third positioning hole, after the second gear is rotated for a certain angle or the lever is swung for a certain angle, the second positioning pin shaft is inserted into the fourth positioning hole and the corresponding third positioning hole, and the rotating position of the lever is fixed.

As a further improvement of the above scheme, a first elongated graduated scale is arranged on the outer side wall of the lever, and the first graduated scale extends along the axial direction of the lever. Reference can be provided for the balancing weight quality on the couple counter weight dish, and for the convenience of observation, the lever is generally horizontal setting.

As a further improvement of the scheme, the other end of the lever is provided with a long-strip-shaped hanging groove, the hook counterweight plate is hung on the hanging groove, the hanging groove extends along the axial direction of the lever, and the bottom wall of the hanging groove is in a sawtooth shape. The cockscomb structure hangs the groove and can realize that the couple counterweight plate is slight to remove and fixed, and the slight removal of accessible to the slight adjustment of static torque is realized to the balancing weight of cooperation difference.

As a further improvement of the scheme, a second strip-shaped graduated scale is arranged on the lever beside the hanging groove and extends along the extending direction of the hanging groove. The second scale ruler can provide positioning reference for fine adjustment, movement and fixation of the hook counterweight plate in the hanging groove.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic view of an embodiment of the present invention in use;

fig. 2 is an exploded view of an embodiment of the invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. The utility model provides an each technical feature can the interactive combination under the prerequisite of conflict each other.

With reference to fig. 1 and 2, this is an embodiment of the invention, in particular:

a gear static torque applying device is shown in figure 1 and comprises a fixing plate 100, a first bracket 200, a second bracket 300, a first gear 400, a second gear 500, a rotation locking mechanism and a torque applying mechanism, wherein the first bracket 200 and the second bracket 300 are vertically arranged on the fixing plate 100, and the second bracket 300 and the first bracket 200 are arranged at intervals; the axis of the first gear 400 is rotatably connected to the upper part of the second bracket 300 through a rotating shaft; the rotation locking mechanism can fix the rotation position of the first gear 400, the rotation locking member is arranged between the first gear 400 and the second bracket 300, the axle center of the second gear 500 is rotatably connected with the upper part of the first bracket 200 through a rotating shaft, the second gear 500 is meshed with the first gear 400, the torque applying mechanism comprises a lever 600 and a hook balance weight disc 700, the rotation locking member is arranged between one end of the lever 600 and the outer side wall of the second gear 500 and can fix the rotation position of the lever 600, the end of the lever 600 close to the second gear 500 is provided with a rotating hole, the lever 600 is rotatably connected with the rotating shaft on the second gear 500 through the rotating hole, the second gear 500 and the rotating shaft relatively rotate, the rotation of the second gear 500 does not interfere with the lever 600, the hook balance weight disc 700 is hung at the other end of the lever 600, the axial direction of the lever 600 is consistent with the radial direction of the second gear 500, the hook weight plate 700 is typically stacked with weights that are standard, so that multiple weights can be placed to vary the applied torque. In measuring the static meshing rigidity between the first gear 400 and the second gear 500, the rotational position of the first gear 400 is fixed by the rotational lock mechanism, a plurality of balancing weights are arranged on the hook balancing weight plate 700, the number of the balancing weights is determined according to the actual situation, the loading of the torque of the second gear 500 is realized, the size of the counterweight is adjusted by adjusting the hanging position of the hanging counterweight plate 700 or placing different counterweight blocks, namely adjusting the magnitude of the applied torque, thereby meeting different working conditions, rotating the first gear 400 and the second gear 500 to adjust the meshing position between the two, the rotation position of the first gear 400 is fixed through the rotation locking mechanism and the rotation position of the lever 600 is fixed through the rotation locking member, so that the engagement process of one period of the gear pair and the adjustment of a torque stress point when the engagement position is changed are realized, the structure is simple, and the torque is convenient to apply.

Further as a preferred embodiment, as shown in fig. 2, the rotation locking mechanism includes a locking disc 800, the locking disc 800 is fixedly installed on the upper portion of the second support 300, the locking disc 800 is coaxially disposed with the first gear 400, a circle of first positioning holes 810 annularly arrayed around the axis of the locking disc 800 is disposed on the sidewall of the locking disc 800, an angle between two adjacent first positioning holes 810 can be determined according to the actual situation, the smaller the angle between two adjacent first positioning holes 810 is, which can satisfy the requirement of more gears, a second positioning hole 410 is disposed on the first gear 400, and when the second positioning hole 410 is coaxially disposed with the corresponding first positioning hole 810, a first positioning pin is inserted between the second positioning hole 410 and the corresponding first positioning hole 810. Therefore, when the first gear 400 needs to be rotated, the first positioning pin shaft is pulled out, after the first gear 400 is rotated for a certain angle, and the second positioning hole 410 is coaxial with the corresponding first positioning hole 810, the first positioning pin shaft is inserted between the second positioning hole 410 and the corresponding first positioning hole 810, so that the rotating position of the first gear 400 is fixed, the first gear 400 is rotated to enable the second positioning hole 410 to be coaxial with different first positioning holes 810, and the meshing process of one period of the first gear 400 is realized.

Further as a preferred embodiment, as shown in fig. 2, the first positioning hole 810 is provided with a plurality of turns, the plurality of turns of the first positioning hole 810 are sequentially distributed outward from the axial center of the locking disk 800, the second positioning hole 410 is provided with a plurality of pairs, each pair of the second positioning holes 410 is centrally symmetrical with respect to the axial center of the first gear 400, the plurality of pairs of the second positioning holes 410 are sequentially distributed outward from the axial center of the first gear 400, and the plurality of pairs of the second positioning holes 410 correspond to the plurality of turns of the first positioning hole 810 one by one. Realize fixing first gear 400 rotational position through a plurality of pairs of second locating hole 410 and many rings of first locating hole 810, can improve the fixed stability of first gear 400, and then can apply bigger torque to first locating hole 810 between every round sets up in a staggered way, can improve first gear 400 pivoted precision, satisfies all to have the gear of more thinner teeth.

Further as a preferred embodiment, as shown in fig. 1 and fig. 2, the rotation locking member includes a plurality of pairs of third positioning holes 510 disposed on the side wall of the second gear 500 and a pair of fourth positioning holes 610 disposed on the lever 600, each pair of third positioning holes 510 is symmetrical with respect to the center of the axis of the second gear 500, all the third positioning holes 510 are arranged in an annular interval arrangement with the axis of the second gear 500 as the center of the circle, a pair of fourth positioning holes 610 is arranged in an interval arrangement along the axis of the lever 600, a pair of fourth positioning holes 610 is coaxially arranged with a corresponding pair of third positioning holes 510 in a one-to-one correspondence, and a second positioning pin is inserted between each third positioning hole 510 and the corresponding fourth positioning hole 610. When the second gear 500 needs to be rotated or the applied torque needs to be adjusted, the second positioning pin shaft can be pulled out from the third positioning hole 510, and after the second gear 500 is rotated by a certain angle or the lever 600 is swung to a certain angle, the second positioning pin shaft is inserted into the third positioning hole 510 and the corresponding fourth positioning hole 610, so that the rotation position of the lever 600 is fixed.

Further, as a preferred embodiment, an elongated first graduated scale is provided on the outer side wall of the lever 600, and the first graduated scale extends in the axial direction of the lever 600. A reference may be provided for the mass of the weights on the hook weight plate 700, and the lever 600 is generally horizontally disposed for ease of viewing.

Further, as a preferred embodiment, the other end of the lever 600 is provided with a long-strip-shaped hanging groove 620, the hook weight plate 700 is hung on the hanging groove 620, the hanging groove 620 extends along the axial direction of the lever 600, and the bottom wall of the hanging groove 620 is in a zigzag shape. The serrated hanging groove 620 can realize fine movement and fixation of the hook counterweight plate 700, and fine movement can be realized by matching with different counterweights to realize fine adjustment of static torque.

Further, as a preferred embodiment, a second scale bar having a long bar shape is provided on the lever 600 beside the hanging groove 620, and the second scale bar is extended along the extending direction of the hanging groove 620. The second graduated scale may provide a positioning reference for the hook weight plate 700 to be finely moved and fixed in the hanging slot 620.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. A gear static torque applying apparatus, comprising:

a fixing plate (100);

the first bracket (200) is vertically arranged on the fixing plate (100);

the second bracket (300) is vertically arranged on the fixing plate (100), and the second bracket (300) and the first bracket (200) are arranged at intervals;

the axle center of the first gear (400) is rotatably connected with the upper part of the second bracket (300) through a rotating shaft;

a rotation locking mechanism that can fix a rotation position of the first gear (400), the rotation locking mechanism being provided between the first gear (400) and the second bracket (300);

the axle center of the second gear (500) is rotatably connected with the upper part of the first bracket (200) through a rotating shaft, and the second gear (500) is meshed with the first gear (400);

mechanism is applyed to torque, including lever (600) and couple counterweight plate (700) the one end of lever (600) with be equipped with between the lateral wall of second gear (500) and rotate the locking member, it can fix to rotate the rotational position of lever (600), couple counterweight plate (700) articulate in the other end of lever (600), the axial of lever (600) with the radial unanimity of second gear (500).

2. A gear static torque applying apparatus according to claim 1, wherein: the rotary locking mechanism comprises a locking disc (800), the locking disc (800) is fixedly mounted on the upper portion of the second support (300), the locking disc (800) and the first gear (400) are coaxially arranged, a circle of first positioning holes (810) which are annularly arrayed with the axis of the locking disc (800) as the circle center are formed in the side wall of the locking disc (800), second positioning holes (410) are formed in the first gear (400), the second positioning holes (410) are coaxially arranged with the corresponding first positioning holes (810), and first positioning pin shafts are inserted between the second positioning holes (410) and the corresponding first positioning holes (810).

3. A gear static torque applying apparatus according to claim 2, wherein: the first positioning holes (810) are provided with a plurality of circles, the plurality of circles of first positioning holes (810) are sequentially distributed outwards from the axis of the locking disc (800), the plurality of pairs of second positioning holes (410) are arranged, each pair of second positioning holes (410) are symmetrical with respect to the axis of the first gear (400), the plurality of pairs of second positioning holes (410) are sequentially distributed outwards from the axis of the first gear (400), and the plurality of pairs of second positioning holes (410) correspond to the plurality of circles of first positioning holes (810) one to one.

4. A gear static torque applying apparatus according to claim 1, wherein: the rotation locking component comprises a plurality of pairs of third positioning holes (510) arranged on the side wall of the second gear (500) and a pair of fourth positioning holes (610) arranged on the lever (600), each pair of third positioning holes (510) is symmetrical about the center of the axis of the second gear (500), all the third positioning holes (510) are arranged in an annular interval mode by taking the axis of the second gear (500) as the center of a circle, one pair of the fourth positioning holes (610) are arranged at intervals along the axis of the lever (600), one pair of the fourth positioning holes (610) and the corresponding pair of the third positioning holes (510) are coaxially arranged in a one-to-one correspondence mode, and a second positioning pin shaft is inserted between each fourth positioning hole (610) and the corresponding third positioning hole (510).

5. A gear static torque applying apparatus according to claim 1, wherein: the outer side wall of the lever (600) is provided with a first elongated graduated scale which extends along the axial direction of the lever (600).

6. A gear static torque applying apparatus according to claim 1, wherein: the other end of lever (600) is equipped with rectangular shape and hangs groove (620), couple counterweight plate (700) articulate on hanging groove (620), hang the axial extension of groove (620) along lever (600) the diapire of hanging groove (620) is the cockscomb structure.

7. The gear static torque applying apparatus according to claim 6, wherein: hang groove (620) side be equipped with the second scale ruler of rectangular shape on lever (600), the second scale ruler extends the setting along the direction that hangs groove (620) and extend.