Measuring assembly, bucket positioning hole and lug plate measuring device
Technical Field
The invention relates to the field of measuring tools, in particular to a measuring assembly and a measuring device for a bucket positioning hole and an ear plate.
Background
When the bucket is installed on an excavator for use, two parallel and spaced lug plates are mostly arranged on a back door of the bucket, and two groups of shaft sleeves are welded on the lug plates; each set of shaft sleeves is coaxially arranged. The pin shaft penetrates through the corresponding shaft sleeve and the small arm mounting part of the excavator. In order to limit the rotation of the pin shaft on the shaft sleeve, positioning holes are generally processed on the shaft sleeve and the pin shaft along the radial direction, and the rotation of the pin shaft can be limited after the positioning pin penetrates through the shaft sleeve and the positioning holes on the pin shaft. In the welding process of the end face of the shaft sleeve and the mounting plate on site, the mounting size between the axis of the positioning hole and the mounting plate can affect the final assembly precision. However, the above dimensions are difficult to measure accurately.
Disclosure of Invention
The invention aims to provide a measuring assembly which can measure the distance between a positioning hole and an ear plate and has small error.
Another object of the present invention is to provide a bucket positioning hole and lug plate measuring device, which can measure the distance between the axes of two positioning holes and the lug plate at the same time.
The invention is realized by the following steps:
a measuring assembly is used for measuring the distance between a bucket positioning hole and an ear plate, a pin shaft hole is formed in the ear plate and comprises a limiting rod and a measuring scale, and the cross section of the limiting rod is rectangular; the limiting rod is used for being inserted into the positioning hole, so that the limiting rod is internally connected with the positioning hole; one end of the measuring scale is used for penetrating the pin shaft hole and the limiting rod in butt joint.
Further, the method comprises the following steps of;
still include the location slider, the location slider slides and sets up on the dipperstick.
Further, the method comprises the following steps of;
the limiting block is connected with the limiting rod.
Further, the method comprises the following steps of;
the limiting rod is provided with a plurality of mounting holes which are distributed at intervals along the length direction of the limiting rod; the end of the measuring scale is provided with a mounting convex part which can be inserted into the corresponding mounting hole.
Further, the method comprises the following steps of; the measuring assembly comprises a main beam and a measuring assembly, wherein the main beam extends along the length direction of the measuring scale; and the two limiting rods of the measuring component are respectively in rotatable connection with the main beam.
Further, the method comprises the following steps of;
the main beam is provided with a positioning slide rod, the positioning slide rod extends along the length direction of the main beam and can selectively move or be fixed at a preset position relative to the main beam.
Further, the method comprises the following steps of;
the connecting rod is further included, one end of the connecting rod is connected with the main beam, and a sleeve is arranged at the other end of the connecting rod; the positioning sliding rod is in threaded connection with the sleeve.
Further, the method comprises the following steps of;
an operating handle is arranged on the sliding rod.
Further, the method comprises the following steps of;
the main beam comprises a body and two round rods arranged at intervals oppositely, and the round rods are connected with one end of the body and extend along the length direction of the body;
the end of the limiting rod is provided with a connecting sleeve, and the connecting sleeve is sleeved on the round rod.
Further, the method comprises the following steps of;
the girder also comprises an end stop block, and the end stop block is detachably connected with the two round rods.
The technical scheme provided by the invention has the beneficial effects that:
when the measuring assembly obtained through the design is used, the limiting rod penetrates through the positioning hole of the shaft sleeve, so that the rectangular section of the limiting rod is connected to the positioning hole of the shaft sleeve. At this moment, insert the dipperstick from the axle sleeve location end in the axle sleeve to make the tip and the gag lever post butt of dipperstick. At the moment, the distance between the abutting surface of the limiting rod and the end part of the shaft sleeve can be directly measured by a measuring ruler; and adding 1/2 of the thickness of the limiting rod to the measured value to obtain the distance between the axis of the positioning hole and the end part of the shaft sleeve. If the shaft sleeve positioning end protrudes out of the lug plate plane, the protruding height of the shaft sleeve positioning end is subtracted from the distance value. The thickness of the limiting rod and the height of the positioning end of the shaft sleeve are easy to measure, so that the problem that the circle center of the positioning hole is difficult to determine is effectively solved after the measuring assembly is adopted; the whole measuring process is convenient to operate, and the error of the measuring result is small.
According to the bucket positioning hole and lug plate measuring device obtained through the design, two limiting rods can be simultaneously inserted into two shaft sleeve positioning holes, so that the distance between the two positioning holes and the lug plate can be measured simultaneously; the overall measurement efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a first angle measured by a measuring device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second angle measured by the measuring device according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a measuring device provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bucket according to an embodiment of the present invention.
Icon: 10-a measuring assembly; 11-a limiting rod; 12-measuring the ruler; 13-positioning the slide block; 14-a limiting block; 20-a measuring device; 21-a main beam; 211-a body; 212-round bar; 213-end stop; 22-positioning the slide bar; 23-a connecting rod; 24-a sleeve; 25-operating a handle; 30-a bucket; 31-ear plate; 32-shaft sleeve; 321-positioning holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example (b):
referring to fig. 1-4, the bucket 30 includes a bucket body and two lugs 31, the two lugs 31 are welded to the back of the bucket body, and the lugs 31 are connected to a small arm (not shown) of an excavator through a pin (not shown). In order to mount the pin, two sets of bushings 32 are disposed on the ear plate 31, and two bushings 32 in each set of bushings 32 are coaxially disposed. In order to prevent the pin shaft from rotating around the self shaft in the shaft sleeve 32, positioning holes 321 are formed in the shaft sleeve 32 and the pin shaft, and the positioning holes 321 extend along the radial direction of the shaft sleeve 32; the pin shaft can be locked after the positioning pin passes through the positioning hole 321. Since the distance between the axis of the positioning hole 321 and the right ear plate 31 (referring to the drawings) can affect the final assembly accuracy, it is necessary to accurately measure the distance.
The bucket 30 positioning hole 321 and the ear plate 31 measuring device 20 comprises a main beam 21 and two measuring assemblies 10, wherein the two measuring assemblies 10 are connected through the main beam 21; the two measuring assemblies 10 can measure the distance between the two positioning holes 321 and the right ear plate 31 at the same time.
Specifically, the measuring assembly 10 includes a limiting rod 11, a measuring ruler 12 and a positioning slider 13, wherein the cross section of the limiting rod 11 is rectangular. When the limiting rod 11 is inserted into the positioning hole 321, the rectangular profile of the cross section of the limiting rod 11 is just inscribed in the circular profile of the positioning hole 321; the positioning slide block 13 is connected to the measuring scale 12 in a sliding manner. Further, a limiting block 14 is further arranged on the limiting rod 11, the limiting block 14 is clamped on the limiting rod 11, and the limiting block 14 is pushed to move to a preset position along the limiting rod 11.
When the limiting device is used, the limiting rod 11 penetrates through the positioning hole 321, and the limiting block 14 is abutted with the outer circumferential surface of the shaft sleeve 32; so that the stopper rod 11 can be fixed in the positioning hole 321. At this time, the measuring scale 12 is inserted through the boss 32 of the right ear plate 31 and the boss 32 of the left ear plate 31 in this order, and one end thereof is brought into contact with the stopper rod 11, and the positioning slider 13 is brought into contact with the end surface of the boss 32 on the right ear plate 31. The scale value of the positioning slide block 13 on the measuring scale 12 is the distance between the surface of the limiting rod 11 and the end surface of the shaft sleeve 32 of the right ear plate 31. The distance between the positioning hole 321 and the surface of the right ear plate 31 is obtained by adding half of the thickness of the limiting rod 11 to the scale value and subtracting the protruding height of the shaft sleeve 32 of the right ear plate 31.
Furthermore, in order to improve the accuracy of the measured data, a plurality of mounting holes are formed in the limiting rod 11 and are distributed at intervals along the length direction of the limiting rod 11; the end part of the measuring scale 12 is provided with a mounting convex part which is inserted in the corresponding mounting hole; the mounting boss may be frustoconical.
The main beam 21 is a rod-shaped structure, and is arranged in parallel with the two main scales at intervals. Girder 21 includes body 211, end stop 213 and two parallel interval set up's round bar 212, and the one end fixed connection of round bar 212 and body 211, end stop 213 can dismantle the tip of connecting in round bar 212. The end of the limiting rod 11 of the measuring component 10 is provided with a connecting sleeve, and the connecting sleeve is sleeved on the round rod 212. Due to the arrangement of the connecting sleeve, the limiting rod 11 can swing around the round rod 212, so that the two limiting rods 11 can adapt to the two positioning holes 321 at different angles.
Further, the other end of the main beam 21 is further provided with a connecting rod 23 and a positioning slide rod 22, and the positioning slide rod 22 and the main beam 21 body 211 are arranged in parallel at intervals and connected with the main beam body 211 through the connecting rod 23. Moreover, a sleeve 24 is arranged at the end of the connecting rod 23, and the positioning slide rod 22 is in threaded connection with the sleeve 24. The end of the positioning slide 22 is provided with an operating handle 25, and by turning the operating handle 25 the positioning slide 22 can be moved relative to the main beam 21.
When the positioning device is used specifically, the two limiting rods 11 are respectively inserted into the two positioning holes 321, and the operating handle 25 of the positioning slide rod 22 is adjusted, so that the end part of the positioning slide rod 22 is abutted against the surface of the right ear plate 31; and maintains the main beam 21 parallel to the measuring tape 12. At this time, the distance between the two positioning holes 321 and the right ear plate 31 can be measured simultaneously by the two measuring scales 12.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.