CN209894090U - Piston retainer groove distance detection tool - Google Patents

Abstract

The utility model discloses an utensil is examined to piston fender circle groove distance, including the fixing base, be connected with the horizontal pole on the fixing base, the one end cover that the fixing base was kept away from to the horizontal pole is equipped with fixed axle sleeve, the horizontal pole is close to one of fixing base and serves the cover and be equipped with the movable shaft sleeve that can follow the horizontal pole and remove, fixed axle sleeve, all be provided with the bellying that is used for the joint in the piston fender circle groove of piston on the movable shaft sleeve, be provided with apart from the detection portion on the fixing base, the measuring head of apart from the detection portion is scalable, and contacts with the lateral wall of movable shaft. The utility model has simple structure and greatly reduced manufacturing cost; the weight is light, the operation is convenient, and the labor intensity of workers is greatly reduced; the method is simple and flexible, convenient to operate and convenient to detect, greatly reduces the technical requirements of workers on operation, saves the training cost and can realize the on-line detection and analysis of the distance of the steel piston retainer ring groove.

Description

Piston retainer groove distance detection tool

Technical Field

The utility model relates to a apart from detecting technical field, more specifically say, relate to a piston retainer groove distance examines utensil.

Background

In various gasoline engines and diesel engines in modern production, floating piston pins are mostly adopted, namely, when the engine works, the piston pins slide relatively in pin holes, and in order to prevent the piston pins from axially sliding to scratch the cylinder, a retainer ring groove is added in the design of the piston pin holes for positioning. In the actual production process, the distance of the retainer ring groove of the steel piston needs to be detected so as to avoid the occurrence of batch waste products. At present, most of the detection of steel piston retainer groove distance adopts the contourgraph to measure, however, the cost of examining the utensil is higher to the contourgraph on the one hand, this equipment is to site environment, and temperature, humidity have certain requirement, can't satisfy on-line measuring's demand, on the other hand the operation of contourgraph is inconvenient, requires than higher to operator's skill level, need carry out a large amount of training to operating personnel, detection efficiency is than lower, site operation personnel can't obtain the testing result at the very first time, in case produce the waste product, in batches great and can't remedy.

In summary, how to provide a piston retainer groove distance detection tool with simple operation and high detection efficiency is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an utensil is examined to piston retainer groove distance that easy operation, detection efficiency are high, greatly reduced workman's intensity of labour, practiced thrift the expense in the aspect of the training and can realize the on-line measuring analysis of steel piston retainer groove distance.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a piston fender circle groove distance examines utensil, includes the fixing base, be connected with the horizontal pole on the fixing base, the horizontal pole is kept away from the one end cover of fixing base is equipped with fixed axle sleeve, the horizontal pole is close to one of fixing base is served to overlap and is equipped with and follows the activity axle sleeve that the horizontal pole removed, fixed axle sleeve all be provided with the bellying that is used for the joint in the piston fender circle groove of piston on the activity axle sleeve, be provided with distance detection portion on the fixing base, the measuring head of distance detection portion is scalable, and with the lateral wall of activity axle sleeve contacts, in order to measure activity axle sleeve follows the displacement amount that the horizontal pole removed.

Preferably, a compression spring in a compressed state is arranged between the fixed shaft sleeve and the movable shaft sleeve, so that the convex part is kept in contact with the outer side wall of the piston retainer groove.

Preferably, the fixed seat is provided with a shifting part which is used for driving the movable shaft sleeve to move and is convenient for mounting the piston.

Preferably, the toggle part is a lever part which is rotatably connected with the fixed seat, the lever part is arranged in the groove of the fixed seat, the first end of the lever part is contacted with the side wall of the movable shaft sleeve, and the second end of the lever part can be toggled to drive the first end to drive the movable shaft sleeve to move.

Preferably, the fixing base includes the cuboid base, and with the vertical fixed plate that the top surface of rectangle base is connected, the horizontal pole lever portion all set up in on the vertical fixed plate.

Preferably, a fixing bracket for fixing the distance detection part is connected to a side surface of the vertical fixing plate.

Preferably, the distance detection unit is a dial indicator.

Preferably, the device further comprises a standard sample block which can be clamped on the protruding part.

Preferably, the standard sample block is a door-shaped block, the door-shaped block comprises a horizontal block at the top and a vertical block connected with two sides of the horizontal block, and two side plates used for abutting against the protruding parts are arranged at two ends of the bottom of the horizontal block.

Preferably, the protruding part is an arc-shaped protruding block arranged at the tops of the fixed shaft sleeve and the movable shaft sleeve.

The utility model provides an utensil is examined to piston fender circle groove distance, which comprises a fixed base, be connected with the horizontal pole on the fixing base, the one end cover that the fixing base was kept away from to the horizontal pole is equipped with fixed axle sleeve, the horizontal pole is close to one of fixing base and serves the cover and be equipped with the movable shaft sleeve that can follow the horizontal pole and remove, fixed axle sleeve, all be provided with the bellying that is used for the joint in two piston fender circle grooves of piston on the movable shaft sleeve, be provided with apart from the detection portion on the fixing base, the measuring head of apart from the detection portion is scalable, and contact with the lateral wall of.

When in use, a standard sample block with known length can be selected, the standard sample block is fixed on the protruding parts on the movable shaft sleeve and the fixed shaft sleeve, the distance between the two protruding parts, namely the length of the standard sample block, is known, the reading of the distance detection part at the moment is set to be 0, namely zero, then the standard sample block is taken down, the position of the movable shaft sleeve is adjusted, the protruding parts are in contact with and fixed with the two piston retainer ring grooves of the piston retainer ring, the movement of the movable shaft sleeve drives the measuring head to move, so that the reading of the distance detection part changes, the reading of the distance detection part is the displacement of the movable shaft sleeve moving along the cross rod, at the moment, the distance between the two protruding parts, namely the distance between the two piston retainer ring grooves, the specific numerical value is the sum of the length of the standard sample block and the reading of the distance detection part at the moment, the reading can be a positive value or a negative value, or the standard sample, the reading of the distance detection part when the movable shaft sleeve is positioned at a certain position is set to be 0, the distance between the two convex parts at the moment is measured to be used as a basic value, then the piston is placed, and similarly, the reading of the distance detection part is changed, and the basic value and the reading of the distance detection part, namely the distance between the two piston retainer ring grooves are added, so that the utility model has the advantages of simple structure and greatly reduced manufacturing cost; the weight is light, the operation is convenient, and the labor intensity of workers is greatly reduced; the method is simple and flexible, convenient to operate and convenient to detect, greatly reduces the technical requirements of workers on operation, saves the training cost and can realize the on-line detection and analysis of the distance of the steel piston retainer ring groove.

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 schematic structural view of the piston retainer groove distance measuring tool provided by the present invention after a standard sample block is installed;

fig. 2 is a schematic structural view of the piston retainer groove distance measuring tool provided by the present invention after a piston is installed;

fig. 3 is a schematic structural diagram of the standard sample block provided by the present invention.

In FIGS. 1-3:

1 is cuboid base, 2 is vertical fixed plate, 3 is the fixed bolster, 4 is the horizontal pole, 5 is the percentage table, 6 is fixed axle sleeve, 7 is the activity axle sleeve, 8 is lever portion, 9 is standard sample piece, 91 is horizontal piece, 92 is vertical piece.

Detailed Description

The technical solutions 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 the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide an utensil is examined to easy operation, piston retainer groove distance that detection efficiency is high, greatly reduced workman's intensity of labour, practiced thrift the expense in the aspect of the training and can realize the on-line measuring analysis of steel piston retainer groove distance.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a piston retainer groove distance gauge provided by the present invention after a standard sample block is installed; fig. 2 is a schematic structural view of the piston retainer groove distance measuring tool provided by the present invention after a piston is installed; fig. 3 is a schematic structural diagram of the standard sample block provided by the present invention.

The utility model provides an utensil is examined to piston retainer ring groove distance, which comprises a fixed base, be connected with horizontal pole 4 on the fixing base, the one end cover that the fixing base was kept away from to horizontal pole 4 is equipped with fixed axle sleeve 6, horizontal pole 4 is close to one of fixing base and serves the cover and be equipped with movable axle sleeve 7 that can follow horizontal pole 4 and remove, fixed axle sleeve 6, all be provided with the bellying that is used for the joint in the piston retainer ring groove lateral wall of piston on the movable axle sleeve 7, be provided with apart from the detection portion on the fixing base, the measuring head of apart from the detection portion is scalable, and contact with movable axle sleeve 7's lateral wall, with the.

Wherein, the fixing base is used for placing the supporting carrier of the fixed cross bar 4, the distance measuring part and other parts, the cross bar 4 is generally a round bar, which is convenient to match with the shaft hole of the fixed shaft sleeve 6 or the movable shaft sleeve 7, the shaft sleeve is a cylindrical mechanical part sleeved on the shaft or the bar, the fixed shaft sleeve 6 is fixed at the end of the cross bar 4 far from the fixing base, namely, the fixed shaft sleeve 6 is relatively static with the cross bar 4, generally adopting bolt connection, which is convenient for disassembly and assembly maintenance, of course, the connection can also adopt welding and other ways, the movable shaft sleeve 7 is arranged at one end of the cross bar 4 close to the fixing base, because the distance detecting part is arranged on the fixing base, and the measuring head needs to contact with the side wall of the movable shaft sleeve 7, the movable shaft sleeve 7 can move along the cross bar 4, generally, the inner hole diameter of the movable shaft sleeve 7 is set to, so as to realize the left and right movement of the movable shaft sleeve 7 along the cross rod 4.

It should be noted that the distance detection unit can measure the displacement of the movable sleeve 7 by extending and retracting the measuring head, and the displacement can be displayed by a reading meter or a digital display screen of the distance detection unit.

The fixed shaft sleeve 6 and the movable shaft sleeve 7 are respectively provided with a protruding part used for being clamped on the side walls of the two piston retainer ring grooves of the piston, and after the protruding parts just block the two piston retainer ring grooves, the maximum distance between the two protruding parts can be approximately seen as the distance between the two piston retainer ring grooves.

When the device is used, the standard sample block 9 can be fixed on the protruding parts on the movable shaft sleeve 7 and the fixed shaft sleeve 6, the distance between the two protruding parts, namely the length of the standard sample block 9, is known, the reading of the distance detection part at the moment is set to be 0, namely zero, then the standard sample block 9 is taken down, the position of the movable shaft sleeve 7 is adjusted, the protruding parts are fixedly contacted with the two piston retainer groove of the piston retainer ring, the movement of the movable shaft sleeve 7 drives the measuring head to move, so that the reading of the distance detection part is changed, the reading of the distance detection part is the displacement of the movable shaft sleeve 7 moving along the cross rod 4, at the moment, the distance between the two protruding parts, namely the distance between the two piston retainer grooves, the specific numerical value is the sum of the length of the standard sample block 9 and the reading of the distance detection part at the moment, the reading can be a positive value or a negative value, the reading of the distance detection part when the movable shaft sleeve 7 is positioned at a certain position can be set to be 0 without adopting the, and measure the distance between two convex parts at this moment as the basic value, then put the piston, in the same way, the reading of the distance detection department changes, the above-mentioned basic value adds the reading of the distance detection department namely the distance between two piston retainer ring grooves, the utility model discloses simple structure, manufacturing cost greatly reduced; the weight is light, the operation is convenient, and the labor intensity of workers is greatly reduced; the method is simple and flexible, convenient to operate and convenient to detect, greatly reduces the technical requirements of workers on operation, saves the training cost and can realize the on-line detection and analysis of the distance of the steel piston retainer ring groove.

In order to further improve the accuracy of the measurement, in the present embodiment, a compression spring is provided in a compressed state between the fixed boss 6 and the movable boss 7 so that the boss is held in contact with the outer sidewall of the piston retainer groove.

Wherein, because compression spring is in compression state, two piston retainer ring grooves with the piston are fixed respectively at fixed axle sleeve 6, back on the bellying on the activity axle sleeve 7, compression spring has the trend of extension, and because of fixed axle sleeve 6 is fixed motionless, compression spring will drive activity axle sleeve 7 and remove to the direction of keeping away from fixed axle sleeve 6, the bellying on the activity axle sleeve 7 will drive the piston and keep away from the direction removal of fixed axle sleeve 6 this moment, so that bellying on activity axle sleeve 7 and the fixed axle sleeve 6 keeps in contact with the lateral wall in the piston retainer ring groove that corresponds, guarantee the distance between the bellying and be the maximum distance between two piston retainer ring grooves, of course, compression spring's the position that sets up and confine to above-mentioned mode, can also set up compression spring between activity axle sleeve 7 and horizontal pole 4.

In order to facilitate the user to adjust the position of the movable shaft sleeve 7, in this embodiment, the fixing base is provided with a toggle portion for driving the movable shaft sleeve 7 to move so as to install the piston.

Wherein, when the installation piston, need with the piston suit on fixed axle sleeve 6, activity axle sleeve 7, the manual direct adjustment activity axle sleeve 7 of user, can take place to interfere with the piston, the operation is inconvenient, does not exert oneself well, therefore, sets up the portion of stirring on the fixing base, the user is more convenient through the indirect position of adjusting activity axle sleeve 7 of the portion of stirring of operation.

On the basis of the above specific embodiment, the toggle part is a lever part 8 rotatably connected with the fixing seat, the lever part 8 is arranged in the groove of the fixing seat, the first end of the lever part 8 is in contact with the side wall of the movable shaft sleeve 7, and the second end of the lever part 8 can be toggled to enable the first end to drive the movable shaft sleeve 7 to move.

It can be understood that the connection point of the lever portion 8 and the fixing seat is usually disposed in the middle of the lever portion 8, but not disposed at the end of the lever portion 8, so that the force arms at the two ends of the lever portion 8 are the same, which is convenient for the user to operate, the lever portion 8 and the fixing seat can be rotatably connected through a rotating shaft or a bolt, and the lever portion 8 is disposed in the slot of the fixing seat, in order to reduce the space outside the fixing seat occupied by the lever portion 8 and avoid the lever portion 8 interfering with the piston or other components, generally, the second end of the lever portion 8 is exposed out of the slot of the fixing seat, which is convenient for the user to operate, specifically, when the second end of the lever portion 8 is pressed down leftward, the first end of the lever portion 8 will press the movable shaft sleeve 7 rightward, and then adjust the position of the protruding portion on the movable shaft sleeve 7, so that it can be clamped, of course, the specific form of the toggle part is not limited to the above form, and the position of the movable shaft sleeve 7 can be adjusted by arranging a slide bar or the like on the fixed seat, which is in contact with the movable shaft sleeve 7 and can move horizontally.

In a specific embodiment about the fixing base, the fixing base includes cuboid base 1 to and the vertical fixed plate 2 of being connected with the top surface of rectangle base, and horizontal pole 4, lever portion 8 all set up on vertical fixed plate 2.

It can be understood that cuboid base 1 is used for the support carrier with the contact of position such as workstation or ground promptly, be used for bearing horizontal pole 4, parts such as vertical fixed plate 2, therefore, can set up cuboid base 1's size great, in order to guarantee the stability of utensil is examined to whole piston retainer ring groove distance, size user such as the thickness height of vertical fixed plate 2 can set up in a flexible way by actual need more, guarantee to have sufficient structural strength, and horizontal pole 4 sets up the top at vertical fixed plate 2 usually, in order to guarantee to have sufficient space between horizontal pole 4 and the cuboid base 1 and to place the piston, of course, the structural style of fixing base is not restricted to above-mentioned mode, as long as can support fixed horizontal pole 4, the structure of parts such as lever portion 8 is all can.

In order to further improve the stability that the distance detection portion is fixed, avoid rocking apart from the detection portion mode in the test procedure, influence the measuring accuracy, in this embodiment, the side of vertical fixed plate 2 is connected with fixed bolster 3 that is used for fixed distance detection portion.

Preferably, an opening may be formed in the fixing bracket 3, a fixing rod connected to the measuring head on the distance detection portion is fixed in the opening, the measuring head passes through the opening and contacts with the side wall of the movable shaft sleeve 7, of course, the body of the distance detection portion may be directly fixed on the fixing bracket 3, and the fixing bracket 3 and the vertical fixing plate 2 may be connected by means of screws or welding, and the present disclosure is not limited specifically.

In one embodiment of the distance detection unit, the distance detection unit is a dial indicator 5.

Wherein, the dial indicator 5 is a meter type general length measuring tool made by utilizing a precise rack and pinion mechanism. It is generally composed of measuring head, measuring rod, shockproof spring, rack, gear, hairspring, round dial and pointer. The dial indicator 5 works on the principle that the small linear movement of the measuring rod caused by the measured dimension is amplified through gear transmission and changed into the rotation of a pointer on a dial, so that the measured dimension is read. The dial indicator 5 is a measuring instrument which changes the linear displacement of the measuring rod into the angular displacement of the pointer by utilizing the transmission of a rack gear or a lever gear. The dial indicator 5 has a simple structure, the transmission mechanism is a gear train, the overall size is small, the weight is light, the inertia of the transmission mechanism is small, the transmission ratio is large, circumferential scales can be adopted, the measurement range is large, and not only can comparative measurement be carried out, but also absolute measurement can be carried out. The method is mainly used for measuring the size, the shape, the position error and the like of the workpiece. The division value is 0.01mm, and the measuring ranges are 0-3 mm, 0-5 mm and 0-10 mm. Of course, the distance detection unit may employ a measuring tool such as a vernier caliper or a micrometer.

In order to improve the measurement precision of the piston retainer groove distance detection tool, the piston retainer groove distance detection tool further comprises a standard sample block 9 which can be clamped in the protruding portion.

It can be understood that, when in use, the standard sample block 9 is firstly clamped on the two convex parts, the reading of the fixed distance detection part is set to be zero, the influence of factors such as fit tolerance or structural error between the two parts is reduced, the distance between the two convex parts fixed by the standard sample block 9 is known and is set to be the length of the standard sample block, then the piston is fixed on the two convex parts, after the fixing is finished, the sum of the reading of the distance detection part and the length of the standard sample block is the distance between the two piston retainer ring grooves, namely, the comparison measurement is carried out, of course, the distance between the two piston retainer ring grooves may be greater than or less than the length of the standard sample block, therefore, the reading of the distance detection part may be a positive value or a negative value, and if there is no negative logarithm, the reading is subtracted from the length of the standard sample block, namely, the distance between the two.

In a specific embodiment of the proof mass 9, the proof mass 9 is a door-shaped mass, the door-shaped mass includes a horizontal mass 91 at the top and a vertical mass 92 connected to two sides of the horizontal mass 91, and two side plates for abutting against the protruding portion are disposed at two ends of the bottom of the horizontal mass 91.

Wherein, two curb plates of the bottom of horizontal piece 91 offset with the bellying, and the distance between two curb plates is foretell standard appearance piece 9 length promptly, sets up vertical piece 92 in horizontal piece 91 both sides in order to guarantee that the stability on horizontal pole 4 is fixed to the door type piece, plays balanced effect, and vertical piece 92 generally is the square board of two symmetry settings, and of course, standard appearance piece 9 can adopt other structural style.

On the basis of the above-mentioned specific embodiment, the protruding portion is an arc-shaped protruding block disposed on the top of the fixed shaft sleeve 6 and the movable shaft sleeve 7.

It should be noted that, because the bellying is only for measuring the distance between two piston retainer grooves, need not match completely with piston retainer groove, insert whole piston retainer groove, and because piston retainer groove sets up inside the shaft hole of piston, set up the bellying into the protruding piece of arc at fixed axle sleeve 6 and activity axle sleeve 7 top, in order to make things convenient for the bellying to stretch into the shaft hole, of course, the bellying highly is generally less than the diameter in shaft hole with the diameter value of fixed axle sleeve 6 or activity axle sleeve 7, easy to assemble.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides a piston retainer groove distance examines utensil and has carried out detailed introduction. 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 (10)

1. The piston retainer groove distance detection tool is characterized by comprising a fixed seat, wherein a transverse rod (4) is connected onto the fixed seat, one end of the transverse rod (4) far away from the fixed seat is sleeved with a fixed shaft sleeve (6), one end of the transverse rod (4) close to the fixed seat is sleeved with a movable shaft sleeve (7) capable of moving along the transverse rod (4), protruding portions used for being clamped in piston retainer grooves of a piston are arranged on the fixed shaft sleeve (6) and the movable shaft sleeve (7), a distance detection portion is arranged on the fixed seat, a measuring head of the distance detection portion is telescopic and is in contact with the side wall of the movable shaft sleeve (7) to measure the displacement of the movable shaft sleeve (7) moving along the transverse rod (4).

2. The piston retainer groove distance measuring tool according to claim 1, wherein a compression spring is arranged between the fixed bushing (6) and the movable bushing (7) in a compressed state so that the convex portion is kept in contact with the outer side wall of the piston retainer groove.

3. The piston retainer groove distance measuring tool according to claim 1, wherein a shifting portion for driving the movable shaft sleeve (7) to move and facilitating installation of the piston is arranged on the fixed seat.

4. The piston retainer groove distance detection tool according to claim 3, wherein the toggle portion is a lever portion (8) rotatably connected with the fixed seat, the lever portion (8) is disposed in the groove of the fixed seat, a first end of the lever portion (8) is in contact with a side wall of the movable shaft sleeve (7), and a second end of the lever portion (8) can be toggled to enable the first end to drive the movable shaft sleeve (7) to move.

5. The piston retainer groove distance detection tool according to claim 4, wherein the fixing seat comprises a cuboid base (1) and a vertical fixing plate (2) connected with the top surface of the cuboid base, and the cross rod (4) and the lever part (8) are arranged on the vertical fixing plate (2).

6. The piston retainer groove distance measuring tool according to claim 5, wherein a fixing bracket (3) for fixing the distance measuring part is connected to a side surface of the vertical fixing plate (2).

7. The piston retainer groove distance measuring tool according to claim 6, wherein the distance detecting part is a dial indicator (5).

8. The gauge according to any of claims 1 to 7, further comprising a proof block (9) that can be engaged with the protrusion.

9. The piston retainer groove distance detection tool according to claim 8, wherein the standard sample block (9) is a door-shaped block, the door-shaped block comprises a horizontal block (91) at the top and vertical blocks (92) connected with two sides of the horizontal block (91), and two side plates for abutting against the protruding portions are arranged at two ends of the bottom of the horizontal block (91).

10. The piston retainer groove distance measuring tool according to any one of claims 1 to 7, wherein the protruding portion is an arc-shaped protruding block disposed on the top of the fixed shaft sleeve (6) and the movable shaft sleeve (7).

Images