CN216816414U - Loading mechanism for lubricating grease testing machine - Google Patents

Abstract

The utility model provides a loading mechanism for lubricating grease testing machine, is including the gantry rod that is the type of falling U structure two free ends of gantry rod be symmetric connection respectively has the lead screw cover, is equipped with two sets of loading units in the medial surface symmetry that two free ends of gantry rod are relative, loading unit include fixed connection on gantry rod load the box with set up slider in the load box, the slider passes through elastic component and installs in the load box, the one end of slider stretches out outside the load box through the hole on the load box to pretightning force through elastic component makes the slider is in overhanging extreme position. This scheme provides a loading mechanism for grease testing machine through the structural design of innovation, and this loading mechanism exerts the loading force in the bracket both sides that are equipped with the sample box through gantry rod symmetry, and each side loading force all cooperates through inside elastic component's pretightning force and slider and realizes, has simple structure, adjusts convenient advantage.

Description

Loading mechanism for lubricating grease testing machine

Technical Field

The utility model relates to the technical field of lubricating grease acceleration performance testing equipment, in particular to a loading mechanism for a lubricating grease tester.

Background

At present, the content of common lubricating grease performance index tests mainly comprises viscosity, thixotropy, cone penetration, condensation point, rheological property and the like. The thixotropy, cone penetration and condensation point are all detected in a static environment, the viscosity is detected in an environment of uniform speed relative motion of lubricating grease in two parts, the test of the rheological property is relatively complex, and the rheological property test is mainly divided into a capillary rheometer and a rotary rheometer, wherein the rotary rheometer is divided into a stress control type, a strain control type, a torque control type and an interface rheometer. Along with the development of accurate lubrication technology, the actual demand of quantitatively supplying lubricating oil in real time according to needs is gradually increased, for example, grease lubrication parts on a spacecraft need to bear larger acceleration, a plurality of G or even a plurality of dozen G, bearing lubricating grease can be thrown to one side, acceleration performance test needs to be carried out between the lubricating grease and the parts in order to ensure that the lubricating grease cannot be thrown away and run off under the condition of high acceleration, no related instrument is put into use at present, and therefore a loading mechanism for a lubricating grease acceleration performance tester is also lacked.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a loading mechanism for a lubricating grease tester.

The technical scheme adopted by the utility model is as follows: the utility model provides a lubricating grease loading mechanism for testing machine, is including the gantry rod that is the type of falling U structure two free ends of gantry rod be symmetric connection respectively has the lead screw cover, be equipped with two sets of loading units at the relative medial surface symmetry of two free ends of gantry rod, loading unit include fixed connection load box on gantry rod and set up slider in the load box, the slider passes through elastic component and installs in the load box, the one end of slider stretches out outside the load box through the hole on the load box to pretightning force through elastic component makes the slider is in overhanging extreme position.

Preferably, the outer wall of the loading box is also provided with a trigger rod through hole.

Preferably, a small spring seat is arranged at one end of the sliding block, the elastic assembly is installed between the small spring seat and the inner wall of the loading box, a short limiting end and a long limiting end are arranged at the other end of the sliding block, a first guide plane and a trigger inclined plane are arranged on the short limiting end, a bracket loading surface is arranged on one side surface, close to the short limiting end, of the long limiting end, a second guide plane and a return inclined plane are arranged on the other side of the long limiting end, and the first guide plane and the second guide plane are respectively matched with the inner wall of the loading box to enable the sliding block to move along the interior of the loading box.

As the preferred scheme, a limit plane matched with a boss in the loading box is further arranged on the sliding block between the short limit end and the long limit end.

Preferably, the loading box is further provided with a box cover, the box cover is connected with the loading box through a locking assembly, and the elastic assembly and the sliding block are packaged in the inner cavity of the loading box.

The utility model has the beneficial effects that:

according to the scheme, through an innovative structural design, the loading mechanism for the lubricating grease testing machine is provided, loading forces are symmetrically applied to two sides of the bracket provided with the sample box through the gantry rod, the loading force on each side is realized through the matching of the pre-tightening force of the elastic assembly inside and the sliding block, and the loading mechanism has the advantages of simple structure and convenience in adjustment;

secondly, through carrying out optimal design to the structure of slider, the one end of slider passes through elastic component and loading inner wall contact, and the opposite side is equipped with short spacing end and long spacing end, wherein be equipped with first guide plane and trigger inclined plane on the short spacing end, is equipped with the bracket loading face at the side that long spacing end is close to short spacing end, and the opposite side is equipped with second guide plane and return stroke inclined plane, and wherein first guide plane and second guide plane cooperate the realization with the inner wall of loading box respectively the slider is followed remove in the loading box, the realization that this structure can be fine is to the loaded function of bracket, and the structure is simpler, and it is more convenient to use, and the reliability is high.

Drawings

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

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural view of the connection of the gantry lever, the screw rod sleeve and the loading box;

fig. 3 is a schematic structural diagram of a slider.

The labels in the figure are: 71. the device comprises a gantry rod 711, a free end 72, a lead screw sleeve 73, a loading box 74, a trigger rod through hole 75, a bolt 76, a cover plate 77, a slider 771, a trigger inclined plane 772, a first guide plane 773, a small spring seat 774, a limit plane 775, a second guide plane 776, a return inclined plane 777, a bracket loading plane 78, a slider hole 79 and an elastic assembly.

Detailed Description

The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

It should be noted that: unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" or "the" and similar referents in the description and claims of the present invention are not to be construed as limiting in number, but rather as indicating the presence of at least one. The word "comprise" or "comprises", and the like, indicates that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, but does not exclude other elements or items having the same function.

Examples 1,

The detailed structure of the present embodiment is described below with reference to fig. 1 to 3:

as shown in fig. 1-2, a loading mechanism for a grease testing machine, which mainly comprises a gantry lever 71, a screw rod sleeve 72, a loading box 73, a slider 77 and an elastic component 79, wherein in order to facilitate the loading mechanism to symmetrically apply loading force to two sides of a bracket provided with a sample box, the gantry lever 71 is arranged in an inverted U-shaped structure, two free ends 711 at the lower end of the gantry lever are respectively connected with the screw rod sleeve 72, the screw rod sleeve 72 can be matched with a driving mechanism consisting of a screw rod and a motor, and the motor outputs power and drives the whole loading mechanism to move by matching the screw rod and the screw rod sleeve 72;

the loading unit integrally formed by the loading box 73, the sliding block 77 and the elastic component 79 is symmetrically arranged on the inner side surfaces opposite to the two free ends of the gantry rod 71, wherein the loading box 73 is fixedly connected with the gantry rod 71, the sliding block 77 is installed in the loading box 73 through the elastic component 79, one end of the sliding block 77 extends out of the loading box through a hole in the loading box, and one end of the sliding block is in an extending limit position through the pretightening force of the elastic component 79, at the moment, one end of the extending sliding block can apply the loading force on the side surface of the bracket, and in the process that the driving mechanism drives the loading mechanism to move, the bracket is synchronously driven to move to one side.

In this embodiment, the elastic component 79 may be a small spring, and the pre-tightening force parameter of the spring may be designed based on the principle that the slider extends outward to a limit position.

In this embodiment, the loading box 73 is further provided with a cover plate 76, the cover plate 76 is connected with a port of the loading box 73 through a bolt 75 and encloses an elastic component 79 and a slider 77 in an inner cavity of the loading box, and the outer wall of the loading box 73 is further provided with a trigger rod through hole 74 and a slider through hole 78.

As shown in fig. 3, one end of the slider 77 is provided with a small spring seat 773, the elastic component 79 is installed between the small spring seat 773 and the inner wall of the loading box 73, the other end of the slider 77 is provided with a short limit tip and a long limit tip, wherein the short limit tip is provided with a first guide plane 772 and a trigger inclined plane 771, one side of the long limit tip close to the short limit tip is provided with a bracket loading surface 777, and the other side of the long limit tip is provided with a second guide plane 775 and a return inclined plane 776, wherein the first guide plane 772 and the second guide plane 775 are respectively matched with the inner wall of the loading box 73 to realize that the slider 77 moves along the loading box; the slider 77 located between the short limit end and the long limit end is further provided with a limit plane 774 matched with the boss in the loading box 73.

The action process of the sliding block is as follows:

firstly, the slider 77 is installed in the loading box 73, the loading box 73 is provided with a cover plate 76, when the loading box is installed, a small spring is sleeved on two spring seats 773 behind the slider 77 and is pressed by a proper amount, so that the small spring and the slider can be placed into the loading box together, at the moment, the small spring has a certain pretightening force and ensures that the slider is in an outward extending limit position, namely, the limit plane 774 is tightly attached to one side of a rectangular boss in the loading box, and the rectangular boss also serves as a sliding fit effect with the slider. Because the loading force is large, the second guide plane 775 with medium length is stressed, and the number of guide surfaces is large, so as to ensure that the sliding block slides smoothly, when the sliding block touches the trigger lever, at this time, the bracket loading surface 777 extends to the outside of the loading box and is tightly pressed against the side surface of the bracket, the loading assembly moves and drives the bracket to move along a certain direction, when the sliding block moves to a specified position, the trigger lever abuts against the trigger inclined surface 771, the sliding block is gradually pressed to move into the loading box, the small spring is synchronously compressed, and at this time, the bracket loading surface gradually breaks away from the bracket; the carriage is retracted by the retraction ramp 776 to its original position.

It should be noted that while the utility model has been described in terms of the above-mentioned embodiments, other embodiments are also possible. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that all such changes and modifications be covered by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a loading mechanism for lubricating grease test machine which characterized in that: including the gantry rod that is the type of falling U structure two free ends of gantry rod be symmetric connection respectively has the lead screw cover, and medial surface symmetry relative at two free ends of gantry rod is equipped with two sets of loading units, loading unit include fixed connection load box on gantry rod and set up slider in the load box, the slider passes through elastic component and installs in the load box, the one end of slider is passed through the hole on the load box and is stretched out outside the load box to pretightning force through elastic component makes the slider is in overhanging extreme position.

2. The loading mechanism for the grease testing machine according to claim 1, characterized in that: and the outer wall of the loading box is also provided with a trigger rod through hole.

3. The loading mechanism for the grease testing machine according to claim 2, characterized in that: one end of the sliding block is provided with a small spring seat, the elastic component is installed between the small spring seat and the inner wall of the loading box, the other end of the sliding block is provided with a short limiting end and a long limiting end, a first guide plane and a trigger inclined plane are arranged on the short limiting end, a bracket loading surface is arranged on one side face, close to the short limiting end, of the long limiting end, a second guide plane and a return inclined plane are arranged on the other side of the long limiting end, and the first guide plane and the second guide plane are matched with the inner wall of the loading box respectively to achieve that the sliding block moves in the loading box.

4. The loading mechanism for the grease testing machine according to claim 1, characterized in that: and a limiting plane matched with the boss in the loading box is also arranged on the sliding block between the short limiting end and the long limiting end.

5. The loading mechanism for the grease testing machine according to claim 1, characterized in that: the loading box is further provided with a box cover, and the box cover is connected with the loading box through a locking assembly and encapsulates the elastic assembly and the sliding block in an inner cavity of the loading box.

Images