CN110775809A - A lifting device for large-mass plug gauge and its on-line adjustment method - Google Patents

Abstract

The invention discloses a hoisting device for a large-mass plug gauge and an on-line adjustment method thereof. The lifting device of the large-mass plug gauge includes a bow-shaped boom, positive and negative studs, special nuts, nuts, sleeve components, rings, connecting blocks, and lifting rings; the bow-shaped boom is divided into three parts, the upper part is the inclined section, and the lower part is Horizontal section; the horizontal section of the bow-shaped hanger is a stepped shaft, the small diameter section is provided with a ring, and the ring is set in the arc ring groove of the inner hole of the plug gauge; the upper section of the inclined section of the bow-shaped hanger is a threaded section, which is specially The nut is screwed on the threaded section through the axial threaded hole, the lower end of the positive and negative stud is connected with the large threaded hole of the special nut, and the upper end is connected with the threaded hole of the connecting block; the threads at both ends of the positive and negative stud are rotated in opposite directions , one end is left-handed and the other is right-handed. The invention can easily realize the adjustment of six degrees of freedom such as three translations and three rotations of the large-mass plug gauge, so that the plug gauge inspection method and technology can be applied in the inspection of the hole structure of heavy machinery parts.

Description

A lifting device for large-mass plug gauge and its on-line adjustment method

technical field

The invention relates to the field of mechanical engineering, in particular to a spreader and an on-line adjustment method for a heavy-duty machinery large-mass plug gauge.

Background technique

Plug gauges are inspection tools for hole parts, which are widely used in the machinery industry. In non-heavy machinery, it has the advantages of convenient and quick operation, low inspection cost and good comprehensive inspection effect. Cone plug gauge, thread plug gauge and comprehensive spline are irreplaceable or the simplest and most economical inspection tools in some occasions. In light machinery, these plug gauges only need to be equipped with a handle and can be easily used, because it is not heavy, and the human arm can flexibly test the operation under normal circumstances. This is not the case for heavy machinery. Its inner hole diameter is large and the hole depth is often hundreds of millimeters. Take the plug gauge with an involute spline with a diameter of 450mm and a hole depth of 400mm to be inspected as an example. In order to ensure the necessary rigidity of the plug gauge With the corresponding wall thickness, even if the weight reduction hole is set, the mass of the plug gauge is between 250kg and 300kg, which is beyond the human physical strength.

In particular, in most cases, online measurement is required during processing, and the axis of the hole is mostly horizontal during online processing. It is more difficult to detect the plug gauge horizontally and insert it into the hole of heavy machinery. Because the quality of the plug gauge is large, it cannot be moved or held, so there are three difficulties: one is that the plug gauge cannot keep the axis horizontal; Check the taper and contact rate of the taper hole, or adapt to screwing in and out of the thread, or the center of the tooth top of the outer spline of the plug gauge coincides with the center surface of the inner spline tooth groove of the workpiece to be inspected; Check the hole in the workpiece and keep it balanced for a long time. No matter what kind of plug gauge mentioned above, no matter it is a stop gauge or a general gauge, it is necessary to overcome these three difficulties at the same time in use, and it is also required to be able to adjust with high precision.

If the counterweight method is used for balancing, the total weight of the plug gauge and its counterweight will be doubled, and the axial length will be doubled. , it is also difficult to achieve rotation around the axis.

In a word, when the dimensional tolerance and shape and position tolerance of large-sized hole structures in the field of heavy machinery are inspected using such as conical plug gauges, thread plug gauges and comprehensive spline plug gauges, due to the high quality of the plug gauges, there is currently no convenient and reliable method. The hoisting method and device can meet the use of such inspection tools, and can not be used online. Therefore, the application of the plug gauge acceptance method to the structural inspection of large-sized holes is limited, and the comprehensive inspection effect unique to the conical plug gauge, the threaded plug gauge and the integrated spline plug gauge is lost.

SUMMARY OF THE INVENTION

The problem to be solved by the present invention is to provide a hoisting device and an on-line adjustment method for a large-mass plug gauge. The lifting device can easily realize the adjustment of 6 degrees of freedom such as three translations and three rotations of the large-mass plug gauge. If it fails, the taper of the taper hole and its contact rate can also be checked, so that the method and technology of the plug gauge inspection can be applied in the inspection of the hole structure of heavy machinery parts. At the same time, the hoisting device of the present invention can also realize on-line detection.

The invention relates to a lifting device for a large-mass plug gauge, which comprises an arched hanger rod, positive and negative studs, a special nut, a nut, a retaining sleeve assembly, a ring, a connecting block and a hanger ring; the arched hanger rod is divided into three parts, the upper part is It is an inclined section, the lower part is a horizontal section, the vertical section in the middle connects the upper part and the lower part, and the horizontal section is located below the inclined section; In the circular arc ring groove of the inner hole of the plug gauge, the two ends of the ring are provided with retaining sleeve components, the nut is screwed with the thread of the outer section of the small diameter section of the horizontal section of the bow-shaped hanger, and the retaining sleeve components are pressed against the circular ring. The upper section of the inclined section of the bow-shaped hanger is a threaded section, and the special nut is screwed on the threaded section through the axial threaded hole. The corresponding position of the stud is provided with threads, the lower end of the positive and negative stud is connected with the large threaded hole of the special nut, and the upper end is connected with the threaded hole of the connecting block; the threads at both ends of the positive and negative studs are rotated in opposite directions, one end is left-handed and the other end Right-handed; the axial threaded hole of the special nut and the large threaded hole have the same rotation direction; the upper part of the lifting ring is connected with the lifting ring.

Further, the outside of the ring is an arc surface, the inner hole of the plug gauge is provided with a corresponding inner ring groove, the arc radius R ₁ on the circular arc surface of the ring and the arc radius of the inner ring groove of the plug gauge 9 R ₂ is equal, or R ₁ is slightly less than R ₂ .

Further, when the ring is hooked into the inner ring groove, the central section Q of the inner ring groove coincides with the cross section P passing through the center of gravity of the plug gauge.

Further, the inner hole of the ring is a circular hole, which is clearance fit with the small diameter section of the horizontal section of the bow-shaped hanger.

Further, the block sleeve assembly is composed of a plurality of block sleeves with different lengths.

Further, the angle between the axis of the large threaded hole and the axis of the axial threaded hole in the vertical direction of the special nut is γ, and the angle between the axis of the inclined section of the bow-shaped hanger and the axis of the horizontal section is β, γ+ β=90°; the axis L of the positive and negative studs coincides or nearly coincides with the central section Q of the inner ring groove.

Further, the hoisting device also includes a pin and a handrail; a light hole is arranged on the protruding block at the bottom of the connecting block, a small threaded hole is arranged in the vertical direction of the special nut, and the lower end of the pin is connected with the small threaded hole of the special nut. , Its upper end is matched with the light hole; the handrail passes through the horizontal hole of the special nut from front to back; the distance between the center of the light hole and the center of the screw hole of the connecting block is equal to the center of the small threaded hole of the special nut and the large threaded hole The distance between the centers of the special nut; the small threaded hole and the large threaded hole of the special nut are rotated in the same direction.

Further, the hoisting device also includes a detection auxiliary mechanism, and the detection auxiliary mechanism includes a bolt, a screw, a lever, and a handle; the lever is connected with the plug gauge through two bolts, and is pressed against the end face of the plug gauge, and the two screws are located on the bolt. Outside, the screw is screwed with the threaded hole of the lever, and the bottom is pressed against the end face of the workpiece; the handle is connected with the lever through the thread, and its center coincides with the axis O ₁ of the plug gauge.

及

坐标，保证塞规与待检工件轴向方向一致，通过拨杆转动塞规使之

坐标与待检工件周向角度一致或使塞规

滑转进行锥度及其接触率检验。The online adjustment method of the hoisting device of the large-mass plug gauge of the present invention is as follows: during the process of lifting the large-mass plug gauge and placing it into the inner hole of the workpiece to be inspected, the plug gauge is connected to the workpiece to be inspected X, Y by controlling the orientation of the crane and auxiliary pushing and pulling. Coordinates are consistent, control the crane to make rough adjustment and coordinate with positive and negative stud fine-tuning to make the height Z coordinate consistent; control the plug gauge through the handle

and

Coordinates to ensure that the plug gauge is consistent with the axial direction of the workpiece to be inspected, and the plug gauge is rotated by the lever to make it

The coordinates are consistent with the circumferential angle of the workpiece to be inspected or the plug gauge

Slip is tested for taper and its contact rate.

坐标是通过内环槽的中心截面Q 与塞规重心通过的横截面P重合实现自动平衡的，检测过程中还可通过手柄施加一个不大的F3力，进行必要的适时调整；四、坐标通过拨杆、螺栓调节，调节时在拨杆的两端b、c分别施加力F1和F2，产生力矩M1+M2，圆环在力矩作用下便滚动，从而实现塞规的

坐标与待检工件待检结构一致，如塞规的齿顶中心面对正待检工件的齿槽中心面。如果塞规为锥度塞规时，可通过此方法往复

转动配合塞规锥面涂红丹粉，完成检查锥孔的锥度及其接触率；五、

坐标可通过拨杆或手柄控制，使塞规轴心线与待检工件待检结构轴心线一致。Further, the on-line adjustment method of the present invention is as follows: 1. The X-direction and Y-direction coordinates (horizontal direction) are adjusted mainly by controlling the crane and manpower adjustment is the auxiliary, so that the plug gauge axis O ₁ and the structure to be inspected of the workpiece to be inspected are adjusted. The X coordinate of the axis is the same; the Y direction can be entered by pushing the plug gauge or the lever, and the plug gauge can also be pulled out by using the screw to overcome the axial friction; 2. The Z coordinate (height direction) is mainly adjusted by the crane, positive The anti-thread stud adjustment is supplemented to achieve: manually control the crane to roughly adjust the upper and lower position of the plug gauge, and the error is within 1mm; then adjust the positive and negative studs. Both ends of the positive and negative studs are positive and negative threads, which can be adjusted precisely. To the required height, note that it can only be adjusted within half a circle or 1mm, so as to avoid safety problems when over-adjusting; use an open-end wrench to straighten the flat part of the middle of the anti-thread stud when adjusting, and apply the opposite direction of the wrench to the handrail. torque, so that the plug gauge is not caused by abnormal wrench torque Rotate; at the same time, when the wrench pulls the positive and negative studs, the connecting block does not rotate under the action of the pin, which is convenient for the fine adjustment of the Z coordinate; 3.

The coordinates are automatically balanced by the coincidence of the central section Q of the inner ring groove and the cross section P passing through the center of gravity of the plug gauge. During the detection process, a small F3 force can also be applied through the handle to make necessary timely adjustments; 4. The coordinates are adjusted by levers and bolts. When adjusting, forces F1 and F2 are applied to both ends b and c of the lever to generate a moment M1+M2, and the ring rolls under the action of the moment, thereby realizing the plug gauge

The coordinates are consistent with the structure of the workpiece to be inspected. For example, the center of the tooth tip of the plug gauge faces the center surface of the tooth groove of the workpiece to be inspected. If the plug gauge is a tapered plug gauge, it can be reciprocated by this method

Rotate and cooperate with the taper surface of the plug gauge to apply red powder to complete the inspection of the taper of the taper hole and its contact rate; 5.

The coordinates can be controlled by the lever or handle, so that the axis line of the plug gauge is consistent with the axis line of the structure to be inspected.

Before lifting: Determine the size of each block in the block assembly according to the position of the arc groove in the plug gauge and the length of the plug gauge. The ring is fixed by the block, nut and the shoulder of the horizontal section of the bow-shaped hanger. position, so that the outer arc of the ring is hooked in the inner ring groove of the plug gauge, and at the same time ensure that after the plug gauge is lifted, there is an appropriate axial space d between the bow-shaped hanger and the outer end face of the plug gauge; then adjust the special nut , so that the axis L of the positive and negative studs is coincident or nearly coincident with the central section Q of the ring; then put the hook on the crane on the ring.

When lifting: the ring is hooked to the inner ring groove of the plug gauge, and the crane lifts the plug gauge through the lifting ring, so that the plug gauge is inserted into the workpiece to be inspected, so as to realize the processing of large-sized inner cone, inner thread and inner spline of heavy machinery On-line inspection during the process.

及

坐标，保证塞规与待检工件轴向方向一致，通过拨杆转动塞规使之

坐标与待检工件周向角度一致或使塞规

滑转进行锥度及其接触率检验。During the inspection, the large-mass plug gauge is lifted and placed into the inner hole of the workpiece to be inspected. By controlling the orientation of the crane and auxiliary push-pull, the plug gauge is consistent with the X and Y coordinates of the workpiece to be inspected, and the coarse adjustment of the crane is controlled to match the positive and negative. Thread stud fine-tuning to make the height Z coordinate consistent; control the plug gauge through the handle

and

Coordinates to ensure that the plug gauge is consistent with the axial direction of the workpiece to be inspected, and the plug gauge is rotated by the lever to make it

The coordinates are consistent with the circumferential angle of the workpiece to be inspected or the plug gauge

Slip is tested for taper and its contact rate.

Therefore, the hoisting device of the large-mass plug gauge of the present invention can easily realize the adjustment of 6 degrees of freedom, such as three translational movements and three rotations of the large-mass plug gauge, and the pass gauge can be easily inserted into the workpiece hole to maintain balance when the workpiece is qualified. , the stop gauge cannot pass in the precise position of the fine adjustment, and the taper of the taper hole and its contact rate can also be checked, so that the method and technology of the plug gauge inspection can be applied in the inspection of the hole structure of heavy machinery parts. At the same time, the hoisting device of the present invention can also realize on-line detection. Therefore, in the field of heavy machinery, the lifting device of the large-mass plug gauge of the present invention can realize active measurement, so that the large-sized inner cone, inner thread, rectangular or involute inner spline can be inspected and controlled online, thereby improving the product qualification rate. Reduce inspection cost and operation difficulty.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

Fig. 1 is the front view of the hoisting device of the present invention;

Fig. 2 is the right side view of the hoisting device of the present invention;

Fig. 3 is a sectional view along line A-A in Fig. 2;

FIG. 4 is an enlarged schematic view of the position K in FIG. 1 .

Detailed ways

Example 1

The present invention is a hoisting device for a large-mass plug gauge, which comprises an arched hanger rod 8, a positive and negative thread stud 5, a special nut 6, a nut 10, a retaining sleeve assembly 11, a circular ring 12, a connecting block 2, and a hoisting ring 1; The boom 8 is divided into three parts, the upper part is an inclined section, the lower part is a horizontal section, the middle vertical section connects the upper part and the lower part, and the horizontal section is located below the inclined section; the horizontal section of the bow-shaped boom 8 is a stepped shaft, and its small diameter section A circular ring 12 is arranged on it, the circular ring 12 is arranged in the circular arc ring groove 15 of the inner hole of the plug gauge 9, the two ends of the circular ring are provided with a stopper assembly 11, the nut 10 and the small diameter section of the horizontal section of the bow-shaped hanger rod 8 The thread of the outer section is screwed together, and the block sleeve assembly 11 is pressed against the end face of the ring 12; the upper section of the inclined section of the bow-shaped hanger 8 is a threaded section, and the special nut 6 is screwed on the threaded section through the axial threaded hole, The special nut 6 is provided with a large threaded hole in the vertical direction, the lower part of the connecting block 2 is provided with a thread at the corresponding position of the large threaded hole of the special nut 6, and the lower end of the positive and negative thread stud 5 is connected with the large threaded hole of the special nut 6. , Its upper end is connected with the threaded hole of the connecting block 2; the threads at both ends of the positive and negative stud 5 are rotated in opposite directions, one end is left-handed and the other is right-handed; the axial threaded hole of the special nut 6 and the large threaded hole have the same rotation direction; the lifting ring 2 The upper part is connected with the lifting ring 1.

During lifting and use, the ring 12 is always in the inner ring groove 15 of the inner hole of the plug gauge 9 to ensure its connection with the plug gauge. At the same time, the nut has an axial blocking effect on the plug gauge to prevent the plug gauge from slipping.

Example 2

In the hoisting device of the present invention: the outside of the ring 12 is a circular arc surface, the inner hole of the plug gauge 9 is provided with a corresponding inner ring groove 15, and the arc radius R ₁ on the circular arc surface of the circular ring 12 is the same as the diameter of the plug gauge 9. The arc radius R ₂ of the inner ring groove 15 is equal, or R ₁ is slightly smaller than R ₂ .

The arc radius R ₁ of the ring 12 is equal to or slightly smaller than the arc radius R ₂ of the inner ring groove 15, which can ensure that the ring is always in the arc ring groove of the plug gauge, so that the spreader will not be separated from the plug gauge, thereby It ensures the safe use of the plug gauge during the inspection process.

Example 3

In the hoisting device of the present invention, the inner hole of the ring 12 is a circular hole, and the small diameter section of the horizontal section of the bow-shaped hanger 8 is a clearance fit.

The ring 12 is in clearance fit with the bow-shaped hanger rod 8, which can roll around the circular axis of the horizontal section of the bow-shaped hanger rod ₈ , and the rolling resistance is small, so that the plug gauge can roll around its own axis O1.

Example 4

In the hoisting device of the present invention: when the ring 12 is hooked into the inner ring groove 15, the central section Q of the inner ring groove 15 coincides with the cross section P through which the center of gravity of the plug gauge 9 passes.

In this way, it can be ensured that when the outer arc of the ring 12 is located within the arc of the inner ring groove 15, the plug gauge can be automatically and horizontally lifted. Among them, the center of gravity of the plug gauge 9 refers to the center of gravity of the whole including the direct connection piece with the plug gauge.

Embodiment 5;

In the hoisting device of the present invention, the block sleeve assembly 11 is composed of a plurality of block sleeves with different lengths.

The functions of the retaining sleeve assembly 11 are: 1. The movable special nut is adjusted in coordination with a plurality of retaining sleeves of different lengths, so that the axis L of the positive and negative studs coincides or is close to the central section Q of the inner ring groove 15, So as to ensure that the plug gauge is lifted horizontally; 2. Increase or decrease the number of stopper sleeves to suit the length of the plug gauge, and adjust the position of its length and short pieces so that when the plug gauge detects the deepest limit, the bow-shaped boom and the workpiece can still be guaranteed 18 There is a suitable space dimension d so that the bow-shaped boom 8 does not touch the workpiece 18 to be inspected.

Example 6

In the hoisting device of the present invention: the included angle between the axis of the large threaded hole in the vertical direction of the special nut 6 and the axis of the axial threaded hole is γ, and the included angle between the axis of the inclined section and the axis of the horizontal section of the bow-shaped hanger 8 is β, γ+β=90°; the axis L of the positive and negative thread stud 5 is coincident or nearly coincident with the central section Q of the inner ring groove 15 .

The two conditions for keeping the axis horizontal in the horizontal section of the bow-shaped boom 8 during hoisting are: γ+β=90°; the axis L of the positive and negative stud 5 is coincident or nearly coincident with the central section Q of the inner ring groove 15 . Among them, by rotating the special nut 6, it moves along the threaded section on the inclined section of the bow-shaped hanger 8 to drive the positive and negative studs 5 connected with the large threaded holes of the special nut 6 to move, so that the positive and negative studs can be moved. The axis L of the 5 and the central section Q of the inner ring groove 15 are coincident or nearly coincident.

When the axis L of the positive and negative stud 5 is coincident with the central section Q of the inner ring groove 15, and the axis of the horizontal section of the bow-shaped hanger is horizontal, when lifting, the center of the arc groove is on the center of gravity of the plug gauge 9, so the lifting When the axial line L of the positive and negative stud 5 is extended, it passes through the center of gravity of the plug gauge 9, so as to ensure that the lower section of the bow-shaped hanger is level.

When the axis L of the positive and negative thread stud 5 is nearly coincident with the central section Q of the inner ring groove 15, and the axis of the horizontal section of the bow-shaped boom is close to horizontal, when lifting, because the plug gauge is supported on the ring through the inner ring groove On the outer arc, they can rotate freely. Since the central section Q of the inner ring groove 15 coincides with the cross section P where the center of gravity of the plug gauge is located, the axis line of the plug gauge is still automatically kept horizontal.

Example 7

The hoisting device of the present invention also includes a pin 4 and a handrail 7; a light hole 3 is provided on the protruding block at the bottom of the connecting block 2, a small threaded hole is provided in the vertical direction of the special nut 6, and the lower end of the pin 4 is connected to the special The small threaded hole of the nut 6 is connected, and its upper end is matched with the light hole 3; the handrail 7 passes through the transverse hole of the special nut 5 from front to back; the distance between the center of the light hole 3 and the center of the screw hole of the connecting block 2 It is equal to the distance between the center of the small threaded hole of the special nut 6 and the center of the large threaded hole; the small threaded hole and the large threaded hole of the special nut 6 have the same rotation direction.

转动。The pin 4 connects the connecting block 2 with the special nut 6. When the wrench turns the positive and negative stud 5, the connecting block 2 does not rotate under the action of the pin 4, which is convenient for Z coordinate adjustment; Use the reverse torque of the wrench to prevent the plug gauge from being caused by the wrench torque

turn.

Example 8

The hoisting device of the present invention also includes an auxiliary detection mechanism, and the auxiliary detection mechanism includes a bolt 14, a screw 16, a lever 17, and a handle 19; On the upper side, two screws 16 are located on the outside of the bolt 14, the screws 16 are screwed with the threaded holes of the lever 17, and the bottom is pressed on the end face of the workpiece 18; the handle 19 is connected with the lever 17 through threads, and its center is connected with the plug gauge 9 The axis O ₁ coincides.

The function of the detection auxiliary mechanism is: the bolt 14 connects the lever 17 to the plug gauge 18 to form an integral body, which is easy to adjust; the screw 16 can push out the plug gauge when the plug gauge is not easy to be taken out; when the plug gauge detects the inner hole of the workpiece, by dialing The adjustment of the lever 17 and the handle 19 can be adjusted with multiple degrees of freedom.

Example 9

Before lifting: first determine the size of each stopper sleeve in the stopper sleeve assembly 11 according to the position of the arc groove in the plug gauge 9 and the length of the plug gauge. The shaft shoulder fixes its axial position, so that the outer arc of the ring is hooked in the inner ring groove of the plug gauge, and at the same time ensures that after the plug gauge is hoisted, there is an appropriate axial space d between the bow-shaped hanger and the outer end face of the plug gauge ; Then adjust the special nut 6 to make the axis L of the positive and negative stud 5 coincide or nearly coincide with the central section Q of the ring 2; then put the hook on the crane on the lifting ring 1.

When lifting: the ring 12 is hooked to the inner ring groove 15 of the plug gauge, and the crane lifts the plug gauge through the lifting ring, so that the plug gauge 9 is inserted into the workpiece 18 to be inspected, so as to realize the large-sized inner cone, inner thread and inner diameter of the heavy machinery. On-line inspection during machining of splines.

Wherein, during the processing of the plug gauge 9, it is necessary to ensure that the central section Q of the inner ring groove 15 coincides with the cross section P through which the center of gravity of the plug gauge 9 passes. The screw-in length of the two ends of the positive and negative stud 5 and the special nut and connecting block is more than 10 teeth, and it is adjusted within half a circle or 1mm to ensure safety.

及

坐标，保证塞规与待检工件轴向方向一致，通过拨杆17转动塞规使之

坐标与待检工件周向角度一致或使塞规

滑转进行锥度及其接触率检验。During the inspection, during the process of lifting the large-mass plug gauge 9 into the inner hole of the workpiece 18 to be inspected, by controlling the orientation of the crane and the auxiliary push-pull, the plug gauge is consistent with the X and Y coordinates of the workpiece to be inspected, and the hoist is controlled for rough adjustment and coordination. The positive and negative studs 5 are fine-tuned to make the height Z coordinate consistent; the plug gauge is controlled by the handle 19

and

Coordinates to ensure that the plug gauge is consistent with the axial direction of the workpiece to be inspected, and the plug gauge is rotated by the lever 17 to make it

The coordinates are consistent with the circumferential angle of the workpiece to be inspected or the plug gauge

Slip is tested for taper and its contact rate.

六个自由度的调整问题：一、X向与Y向坐标(水平方向)通过控制吊车调节为主及人力调节为辅，使塞规轴心线O₁与待检工件18待检结构轴心X向坐标一致；Y向可通过推塞规9或拨杆17进入，还可利用螺钉16克服轴向摩擦力拔出塞规；二、Z 向坐标(高度方向)通过吊机调节为主、正反牙螺柱5调节为辅来实现：人工控制吊机粗调塞规上下位置，误差在1mm以内；然后调节正反牙螺柱5，正反牙螺柱两端是正反螺纹的，可精确调整至所需要的高度，注意只能在半圈或1mm 内调整，以免过度调整时出现安全问题；调整时用开口扳手扳正反牙螺柱5中部扁部，手扶扶杆7施以扳手的反向力矩，使塞规免于因扳手力矩引起不正常的

转动；同时，当扳手扳正反牙螺柱5时，连接块2在销钉4的作用下保持不转动，方便Z坐标精细调节；三、

坐标是通过内环槽15的中心截面Q与塞规9重心通过的横截面P重合实现自动平衡的，检测过程中还可通过手柄19 施加一个不大的F3力，进行必要的适时调整；四、

坐标通过拨杆17、螺栓14调节，调节时在拨杆的两端b、c分别施加力F1和F2，产生力矩M1+M2，圆环12在力矩作用下便滚动，从而实现塞规9的

坐标与待检工件待检结构一致，如塞规的齿顶中心面对正待检工件的齿槽中心面。如果塞规为锥度塞规时，可通过此方法往复

转动配合塞规锥面涂红丹粉，完成检查锥孔的锥度及其接触率；五、

坐标可通过拨杆17或手柄19控制，使塞规轴心线与待检工件18 待检结构轴心线一致。That is to say: when the large-mass plug gauge 9 is hoisted by the bow-shaped hanger 8, in order to smoothly put it into the inner hole of the workpiece 18 for testing, it is also necessary to solve the problem that the plug gauge is in X, Y, Z,

The adjustment problem of six degrees of freedom: 1. The X-direction and Y-direction coordinates (horizontal direction) are mainly adjusted by controlling the crane and supplemented by manpower adjustment, so that the axis O ₁ of the plug gauge and the axis of the workpiece to be inspected 18 are to be inspected. The X coordinate is the same; the Y direction can be entered through the plug gauge 9 or the lever 17, and the plug gauge can also be pulled out by using the screw 16 to overcome the axial friction force; 2. The Z coordinate (height direction) is mainly adjusted by the crane, The adjustment of the positive and negative studs 5 is supplemented to achieve: manually control the crane to roughly adjust the upper and lower positions of the plug gauge, and the error is within 1mm; then adjust the positive and negative studs 5, both ends of the positive and negative studs are positive and negative threads, It can be precisely adjusted to the required height. Note that it can only be adjusted within half a circle or 1mm, so as to avoid safety problems when over-adjusting; use an open-end wrench to pull the middle flat part of the positive and negative stud 5, and hold the lever 7. Use the reverse torque of the wrench to prevent the plug gauge from being abnormally caused by the wrench torque.

At the same time, when the wrench pulls the positive and negative stud 5, the connecting block 2 will not rotate under the action of the pin 4, which is convenient for the fine adjustment of the Z coordinate; 3.

The coordinates are automatically balanced by the coincidence of the central section Q of the inner ring groove 15 and the cross section P passing through the center of gravity of the plug gauge 9. During the detection process, a small force F3 can also be applied through the handle 19 to make necessary timely adjustments; four ,

The coordinates are adjusted by the lever 17 and the bolt 14. When adjusting, forces F1 and F2 are applied to the two ends b and c of the lever, respectively, to generate a moment M1+M2, and the ring 12 rolls under the action of the moment, thereby realizing the plug gauge 9.

The coordinates are consistent with the structure of the workpiece to be inspected. For example, the center of the tooth tip of the plug gauge faces the center surface of the tooth groove of the workpiece to be inspected. If the plug gauge is a tapered plug gauge, it can be reciprocated by this method

Rotate and cooperate with the taper surface of the plug gauge to apply red powder to complete the inspection of the taper of the taper hole and its contact rate; 5.

The coordinates can be controlled by the lever 17 or the handle 19, so that the axis line of the plug gauge is consistent with the axis line of the structure to be inspected of the workpiece 18 to be inspected.

From the above, it can be seen that the lifting device of the large-mass plug gauge of the present invention can easily realize the adjustment of 6 degrees of freedom such as three translations and three rotations of the large-mass plug gauge, and the pass gauge can easily extend into the workpiece hole when the workpiece is qualified. To maintain balance, the stop gauge cannot pass at the precise position of fine adjustment, and the taper of the taper hole and its contact rate can also be checked, so that the method and technology of plug gauge inspection can be applied in the inspection of the hole structure of heavy machinery parts, and the realization of online test.

The advantages of the hoisting device for the large-mass plug gauge of the present invention are: in the field of heavy machinery, the large-mass plug gauge can be applied horizontally in the processing process to realize active measurement and make large-sized inner cone, inner thread, rectangle or involute inner flower Keys are inspected and controlled online, thereby improving the product qualification rate, reducing inspection costs, and reducing operational difficulty.

Claims (10)

1. A hoisting device for a large-mass plug gauge is characterized in that: it comprises a bow-shaped hanger rod (8), a positive and negative tooth stud (5), a special nut (6), a nut (10), a retaining sleeve assembly (11) ), circular ring (12), connecting block (2), and lifting ring (1); the bow-shaped boom (8) is divided into three parts, the upper part is the inclined section, the lower part is the horizontal section, the middle vertical section connects the upper part and the lower part, and the horizontal The segment is located below the inclined segment; the horizontal segment of the bow-shaped hanger (8) is a stepped shaft, and a circular ring (12) is arranged on the small diameter segment, and the circular ring (12) is arranged on the arc of the inner hole of the plug gauge (9). In the ring groove (15), both ends of the ring are provided with baffle assemblies (11), the nut (10) is screwed with the thread of the outer section of the small diameter section of the horizontal section of the bow-shaped hanger (8), and the baffle assemblies are screwed together. (11) Pressed on the end face of the ring (12); the upper section of the inclined section of the bow-shaped hanger (8) is a threaded section, and the special nut (6) is screwed on the threaded section through the axial threaded hole, and the special nut (6) ) is provided with a large threaded hole in the vertical direction, the lower part of the connecting block (2) and the corresponding position of the large threaded hole of the special nut (6) are provided with threads, and the lower end of the positive and negative thread stud (5) is connected to the special nut (6). ), the upper end of which is connected with the threaded hole of the connecting block (2); the threads at both ends of the positive and negative stud (5) are rotated in opposite directions, one end is left-handed and the other is right-handed; the axial thread of the special nut (6) Both the hole and the large threaded hole have the same rotation direction; the upper part of the lifting ring (2) is connected with the lifting ring (1). 2. The lifting device according to claim 1 is characterized in that: the outside of the ring (12) is a circular arc surface, and the inner hole of the plug gauge (9) is provided with a corresponding inner ring groove (15), and the ring (12) The arc radius R ₁ on the arc surface is equal to the arc radius R ₂ of the inner ring groove (15) of the plug gauge (9), or R ₁ is slightly smaller than R ₂ . 3. The lifting device according to claim 2 is characterized in that: when the ring (12) is hooked into the inner ring groove (15), the center section Q of the inner ring groove (15) passes through the center of gravity of the plug gauge (9). The cross-sections P coincide. 4. The hoisting device according to claim 1, characterized in that: the inner hole of the ring (12) is a circular hole, and the small diameter section of the horizontal section of the bow-shaped boom (8) is a clearance fit. 5. The hoisting device according to claim 1, characterized in that: the block sleeve assembly (11) is composed of a plurality of block sleeves with different lengths. 6. The lifting device according to claim 1 is characterized in that: the angle between the axis of the large threaded hole in the vertical direction of the special nut (6) and the axis of the axial threaded hole is γ, and the arcuate suspension rod (8 ) The angle between the axis of the inclined section and the axis of the horizontal section is β, γ+β=90°; the axis L of the positive and negative stud (5) coincides with the central section Q of the inner ring groove (15) or close to coincidence. 7. The hoisting device according to claim 1, characterized in that: the hoisting device further comprises a pin (4) and a handrail (7); ), a small threaded hole is arranged in the vertical direction of the special nut (6), the lower end of the pin (4) is connected with the small threaded hole of the special nut (6), and its upper end is matched with the light hole (3); 7) Pass through the horizontal hole of the special nut (5) from front to back; the distance between the center of the light hole (3) and the center of the screw hole of the connecting block (2) is equal to the distance between the center of the small threaded hole of the special nut (6) and the center of the large screw hole of the special nut (6). The distance between the centers of the threaded holes; the small threaded hole and the large threaded hole of the special nut (6) have the same rotation direction. 8. The hoisting device according to claim 1, characterized in that: the hoisting device further comprises a detection auxiliary mechanism, and the detection auxiliary mechanism comprises a bolt (14), a screw (16), a lever (17), a handle (19); The rod (17) is connected with the plug gauge (9) through two bolts (14), and is pressed against the end face of the plug gauge (9). The two screws (16) are located outside the bolt (14). It is screwed with the threaded hole of the lever (17), and the bottom is pressed against the end face of the workpiece (18); the handle (19) is connected with the lever (17) through threads, and its center is the axis line of the plug gauge (9). O ₁ coincides. 9. The hoisting device described in any one of claims 1-8, the online adjustment method is: during the process of hoisting the large-mass plug gauge (9) into the inner hole of the workpiece to be inspected (18), by controlling the orientation of the crane and assisting Push and pull to make the X and Y coordinates of the plug gauge consistent with the workpiece to be inspected, control the hoist for rough adjustment and coordinate with the positive and negative studs (5) for fine adjustment to make the height Z coordinate consistent; control the plug gauge through the handle (19).

and

Coordinates to ensure that the plug gauge is consistent with the axial direction of the workpiece to be inspected, and the plug gauge is rotated by the lever (17) to make it The coordinates are consistent with the circumferential angle of the workpiece to be inspected or the plug gauge

Slip is tested for taper and its contact rate. 10. The on-line adjustment method according to claim 9 is: one, X and Y coordinates (horizontal direction) are mainly adjusted by controlling the crane and auxiliary by manpower adjustment, so that the plug gauge (9) axis O ₁ and The coordinates of the axis of the workpiece (18) to be inspected are the same in the X direction; the Y direction can be entered through the plug gauge (9) or the lever (17), and the plug gauge can also be pulled out by using the screw (16) to overcome the axial friction force. ;2. The Z coordinate (height direction) is mainly realized by the adjustment of the crane, and the adjustment of the positive and negative studs (5) is supplemented: manually control the crane to roughly adjust the upper and lower positions of the plug gauge, and the error is within 1mm; then adjust the positive and negative studs (5). The reverse thread stud (5), the positive and negative thread studs have positive and negative threads at both ends, and can be adjusted to the required height accurately. Note that the adjustment can only be made within half a circle or 1mm, so as to avoid safety problems during excessive adjustment; Use an open-end wrench to pull the flat part in the middle of the positive and negative studs (5), and apply the reverse torque of the wrench to the handrail (7), so that the plug gauge can be prevented from being abnormally caused by the wrench torque. At the same time, when the wrench pulls the positive and negative studs (5), the connecting block (2) does not rotate under the action of the pin (4), which is convenient for the fine adjustment of the Z coordinate; 3.

The coordinates are automatically balanced by the coincidence of the central section Q of the inner ring groove (15) and the cross section P passing through the center of gravity of the plug gauge (9). Necessary and timely adjustments; 4.

The coordinates are adjusted by the lever (17) and the bolt (14). During adjustment, forces F1 and F2 are applied to the two ends b and c of the lever, respectively, to generate a moment M1+M2, and the ring (12) rolls under the action of the moment. So as to realize the plug gauge (9)

The coordinates are consistent with the structure of the workpiece to be inspected. For example, the center of the tooth tip of the plug gauge faces the center surface of the tooth groove of the workpiece to be inspected. If the plug gauge is a tapered plug gauge, it can be reciprocated by this method

Rotate and cooperate with the taper surface of the plug gauge to apply red powder to complete the inspection of the taper of the taper hole and its contact rate; 5.

The coordinates can be controlled by the lever (17) or the handle (19), so that the axis line of the plug gauge is consistent with the axis line of the structure to be inspected of the workpiece (18) to be inspected.

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