JMIJ and JMIIJ type diaphragm coupling three-meter alignment tool

Abstract

The utility model relates to a JMIJ and JMIIJ type diaphragm coupling three-meter alignment tool which comprises a first half coupling and a second half coupling, the opposite inner sides of the first half coupling and the second half coupling are connected with a first dial plate and a second dial plate respectively, the center position of the first dial plate is axially connected with a first connecting rod, and the center position of the second dial plate is axially connected with a second connecting rod. The other end of the first connecting rod is sequentially in threaded connection with a locking nut and a second connecting rod, the other end of the second connecting rod is radially connected with a meter rod, the upper end and the lower end of the meter rod are connected with a first meter frame and a second meter frame respectively, the first meter frame is in an L shape, a first dial indicator vertically penetrates through the horizontal end face of the first meter frame, and a second dial indicator horizontally penetrates through the vertical end face of the first meter frame. A third dial indicator is vertically arranged on the second dial indicator frame in a penetrating mode. The three-gauge alignment tool has axial and radial adjustment functions, and can adjust the axial distance between the two dial plates and the axial and radial positions of the three dial gauges, so that the three-gauge alignment tool is suitable for alignment and centering of couplings with different distances and different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coupling alignment technology field, concretely relates to a JMIJ, JMIIJ type diaphragm coupling three-table alignment tool. BACKGROUND

[0002] Coupling alignment is one of the important work of equipment maintenance and installation, and the purpose of alignment is to make the center line of driving shaft and driven shaft on the same straight line when the equipment is working. The precision of alignment is related to whether the equipment can operate normally, and it is particularly important for high-speed rotating equipment. At present, two-table method is mostly used for pump installation and maintenance, but for the shaft positioning with the movement, the two-table alignment method has low working efficiency and it is difficult to ensure the alignment precision. In order to improve the coupling alignment precision and ensure the quality of equipment installation and maintenance, the application of three-table method in equipment installation and maintenance is particularly necessary.

[0003] Three-table method, that is, two dial gauges are used to measure the axial deviation of two coupling end faces (the purpose is to eliminate the influence of axial string quantity on axial measurement data), and one dial gauge is used to measure the radial deviation of two couplings. The three-table method is established on the basis of two-table method, and it is suitable for the shaft axial movement in the measurement process, and it is also suitable for the shaft without movement in the measurement process. It is suitable for the detection of coaxiality of all shafts. When two rotors or shaft systems in series are aligned and reach the coaxiality, the center lines of the two half couplings are aligned, and the relative end faces of the two half couplings are necessarily parallel along the whole circumference. This is the basis of coupling alignment. Coupling alignment is suitable for the alignment of shaft systems with deflection (such as centrifugal compressor and turbine shaft system), and also suitable for the alignment of shaft systems without deflection (such as single-stage centrifugal pump and motor shaft system).

[0004] The three-table method has the advantages of simple operation and accurate result. However, this method needs a stable reference surface, and special tools such as special tooling table and dial plate are needed. The traditional alignment method is to install the dial gauge on the magnetic fixing seat. Due to the instability of the magnetic fixing seat, the measurement result is inaccurate. Therefore, it is necessary to explore the tooling that can improve the stability of the dial gauge installation. UTILITY MODEL CONTENTS

[0005] The utility model provides a JMIJ, JMIIJ type diaphragm coupling three-table alignment tool.

[0006] The specific technical scheme of the utility model discloses a JMIJ, JMIIJ type diaphragm coupling three-gauge alignment tool, including half coupling one and half coupling two, the opposite inner side of half coupling one and half coupling two is connected with dial plate one and dial plate two respectively, the central position of dial plate one is axially connected with connecting rod one, the other end of connecting rod one is sequentially connected with lock nut and connecting rod two, the other end of connecting rod two is radially connected with gauge rod, the upper and lower ends of gauge rod are connected with table frame one and table frame two respectively, table frame one is L-shaped, the horizontal end surface of table frame one is vertically through 100% gauge one, the vertical end surface is horizontally through 100% gauge two, 100% gauge three is vertically through on table frame two, the needle of 100% gauge one vertically axially direction points to half dial plate two top surface, the needle of 100% gauge two and 100% gauge three vertically points to the two ends of the same diameter of dial plate two end surface, and the distance of the needle of 100% gauge two and 100% gauge three from dial plate two axle is equal.

[0007] Further, preferably, the half coupling one and dial plate one, the half coupling two and dial plate two are fixed by hexagonal bolt connection.

[0008] Further, preferably, the dial plate one is threadedly connected with the connecting rod one.

[0009] Further, preferably, the outer surface of the connecting rod one is provided with external threads, the connecting rod two is internally threaded hollow structure, and the connecting rod one can be screwed in and out of the connecting rod two.

[0010] Further, preferably, the connecting rod two and the gauge rod are fixed by internal hexagon screw connection.

[0011] Further, preferably, the upper and lower ends of the gauge rod are provided with insertion slots, and the table frame one and the table frame two are inserted into the insertion slots.

[0012] Further, preferably, the insertion slots, the table frame one and the table frame two are spaced apart by a plurality of screw holes, which are used for adjusting the length of the table frame one and the table frame two.

[0013] Further, preferably, the gauge rod and the table frame one and the table frame two are fixed by fastening screws.

[0014] Further, preferably, the table frame one is provided with a through hole one and a through hole two for inserting the 100% gauge one and the 100% gauge two respectively, and the table frame two is provided with a through hole three for inserting the 100% gauge three.

[0015] Further, preferably, the table frame one and the 100% gauge one and the 100% gauge two, and the table frame two and the 100% gauge three are fixed by locking screws.

[0016] The utility model discloses a three -table alignment frock has axial and radial adjustment function, and the axial spacing of two dials can be adjusted through two threaded connecting rods, makes the frock adapt to different spacing coupling, and the both ends of table pole adjustably insert two table supports, can flexibly adjust the axial position and radial position of three dial gauges, makes the frock adapt to different specifications JMⅠJ, JMⅡJ type diaphragm coupling alignment centering. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of an embodiment JMIJ, JMⅡJ type diaphragm coupling three -table alignment frock;

[0018] Figure 2 It is Figure 1 The structure diagram of middle table pole, wherein the left drawing is the front view, and the left drawing is the side view;

[0019] Figure 3 It is Figure 1 The front view of table support one and table support two, wherein the upper drawing is table support one, and the lower drawing is table support two;

[0020] Figure 4 It is Figure 1 The side view of half coupling one and half coupling two, wherein the left drawing is half coupling one, and the right drawing is half coupling two;

[0021] Figure 5 It is the measurement data record drawing of an embodiment;

[0022] In the drawing: 11-half coupling one, 12-half coupling two;21-dial plate one, 22-dial plate two;31-connecting rod one, 32-connecting rod two, 41-table pole;51-table support one, 52-table support two;61-dial gauge one, 62-dial gauge two, 63-dial gauge three;71-hexagonal bolt, 72-lock nut, 73-internal hexagonal screw, 74-fastening screw, 75-locking screw;81-slot, 82-screw hole;91-through hole one, 92-through hole two, 93-through hole three, 10-transmission shaft. DETAILED DESCRIPTION

[0023] In order to make the technical problem, technical scheme that the utility model solves more clearly clear, the following is combined with the drawing and embodiment, and the utility model is further explained in detail.Should understand, the specific embodiment described here is only for explaining the utility model, and is not for limiting the utility model.

[0024] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] As shown in Figure 1 A kind of JMIJ, JMIIJ type diaphragm coupling three table alignment tool as shown in the figure, including half coupling one 11 and half coupling two 12, the opposite inner side of half coupling one 11 and half coupling two 12 is connected with dial one 21 and dial two 22 respectively, the center position of dial one 21 is axially connected with connecting rod one 31, the other end of connecting rod one 31 is sequentially connected with lock nut 72 and connecting rod two 32, the other end of connecting rod two 32 is radially connected with table rod 41, the upper and lower ends of table rod 41 are connected with table frame one 51 and table frame two 52 respectively, table frame one 51 is L-shaped, the horizontal end surface of table frame one 51 is vertically provided with dial gauge one 61, the vertical end surface is horizontally provided with dial gauge two 62, table frame two 52 is vertically provided with dial gauge three 63, the needle of dial gauge one 61 is vertically axially directed to the top surface of dial two 22, the needles of dial gauge two 62 and dial gauge three 63 are vertically directed to the two ends of the diameter of the end surface of dial two 22, and the distance of the needles of dial gauge two 62 and dial gauge three 62 from the axis of dial two 22 is equal.

[0027] The specific connection of the above connecting rod one 31 and connecting rod two 32 is that the outer surface of connecting rod one 31 is provided with external thread, the inside of connecting rod two 32 is hollow structure provided with internal thread, and connecting rod one 31 can be screwed in and out in the inside of connecting rod two 32.

[0028] When using, according to the interval between the two half-couplings, the connecting rod two 32 is screwed to adjust the axial interval of the two dials, so as to adapt to the couplings with different intervals. When the interval between the two dials is adjusted to the appropriate position, the lock nut 72 is screwed, the relative position of the two connecting rods is stabilized, the relative axial movement of the two connecting rods is prevented, the assembly precision between the two connecting rods is ensured, and the stability of the tooling is increased.

[0029] As further preferred, as shown in Figures 1 to 3 The table rod 41 is provided with a slot 81 at both upper and lower ends, and the table frame one 51 and the table frame two 52 are inserted into the slot 81; the slot 81, the table frame one 51 and the part of the table frame two 52 inserted into the slot 81 are all provided with a plurality of screw holes 82 at intervals, for adjusting the length of the table frame one 51 and the table frame two 52; and the table rod 41 is connected and fixed with the table frame one 51 and the table frame two 52 through the fastening screw 74.

[0030] When using, according to the diameter of the dial two 22, the depth of the table frame one 51 and the table frame two 52 inserted into the slot 81 is controlled, the length of the two table frames is adjusted, the axial and radial positions of the three dial gauges are adjusted, and the alignment and centering of the JM IJ and JM IIJ type diaphragm couplings with different specifications can be adapted. When the table frame one 51 and the table frame two 52 are adjusted to the appropriate length, the fastening screw 74 is screwed to be fixed.

[0031] The connection structure of other components is as follows:

[0032] As shown in Figure 1 Figure 4 The dial one 21 and the dial two 22 are provided with bolt connection holes, the half-coupling one 11 and the dial one 21 and the half-coupling two 12 and the dial two 22 are all connected and fixed through the hexagonal bolt 71 passing through the bolt connection holes. In addition, the center position of the dial one 21 is provided with an internal thread, the left end of the connecting rod one 31 is provided with an external thread, and the dial one 21 is connected with the connecting rod one 31 through the internal and external threads.

[0033] The connecting rod two 32 is connected and fixed with the table rod 41 through the internal hexagonal screw 73.

[0034] As shown in Figure 1 Figure 3 The table frame one 51 is provided with a through hole one 91 and a through hole two 92, for respectively inserting the dial gauge one 61 and the dial gauge two 62; and the table frame two 52 is provided with a through hole three 93, for inserting the dial gauge three 63. After the dial gauge one 61 and the dial gauge two 62 are inserted into the table frame one 51 and the dial gauge three 63 is inserted into the table frame two 52, the lock screw 75 is screwed to be connected and fixed. In this way, the three dial gauges can be installed on the half-coupling two 12 to measure and align the same.

[0035] The specific use process of the utility model is as follows:

[0036] The half-coupling one 11 and the half-coupling two 12 are respectively installed on the two transmission shafts 10, the dial one 21 is connected to the inner side of the half-coupling one 11 and the dial two 22 is connected to the inner side of the half-coupling two 12 by using the hexagonal bolt 71, the connecting rod one 21 is screwed in the center position of the dial one 21, the lock nut 72 and the connecting rod two 22 are screwed to the outer surface of the connecting rod one 21 at one time, the end of the connecting rod two 22 away from the connecting rod one 21 is pre-connected with the dial rod 41 by using the inner hexagonal screw 73. The dial stand one 51 and the dial stand two 52 with the dial gauges inserted are inserted into the insertion slots 81 at the two ends of the dial rod 41, and are pre-connected with the dial rod 41 by using the fastening screw 74. At this time, the needle of the dial gauge one 61 is close to the top surface of the dial two 22, and the needles of the dial gauge two 62 and the dial gauge three 63 are close to the end surface of the dial two 22.

[0037] Subsequently, the axial and radial adjustment is carried out. Firstly, the needles of the dial gauge two 62 and the dial gauge three 63 are vertically on the end surface of the dial two 22 by screwing the connecting rod two 32, and the inner hexagonal screw 73 connecting the connecting rod two 32 with the dial rod 41 is fixed after the adjustment is completed, and the lock nut 72 on the connecting rod one 31 is tightened. Secondly, the length of the two dial stands is adjusted, the needle of the dial gauge one 61 is vertically on the top surface of the dial two 22, the distance between the dial gauge two 62 and the dial gauge three 63 and the axis of the dial two 22 is equal, and in order to improve the alignment accuracy, the distance between the needles of the dial gauge two 62 and the dial gauge three 62 and the axis of the dial two 22 is as large as possible, and the fastening screw 74 connecting the dial stand with the dial rod 41 is adjusted and fixed after the adjustment is completed. Thus, the installation of the three-dial alignment tool is completed.

[0038] In order to facilitate measurement, measurement marks can be made on the dial two 22, and a mark is made every 90°, that is, marks are made at 0°, 90°, 180° and 270° respectively. When measuring, the initial readings of the three dial gauges are uniformly adjusted to 0, then the two half-couplings are simultaneously rotated in the same direction, and the dial two 12 is measured by using the three dial gauges, the readings of the dial gauge 1 are a1, a2, a3 and a4, the axial clearances measured by the dial gauge 2 are b1, b2, b3 and b4, and the axial clearances measured by the dial gauge 3 which is 180° away from the dial gauge 2 are c1, c2, c3 and c4. The data obtained at the four positions are shown in the table as follows: Figure 5 According to the data of the three dial gauges, the three-dial alignment work of the diaphragm coupling is completed.

[0039] The utility model is described in detail through specific and preferred embodiments, but those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and any modification, equivalent replacement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A three-table alignment tool for JMIJ and JMIIJ diaphragm couplings, comprising a half-coupling one (11) and a half-coupling two (12), characterized in that: The relative inner side of the half-coupling one (11) and the half-coupling two (12) is connected with the dial one (21) and the dial two (22) respectively, the center position of the dial one (21) is axially connected with the connecting rod one (31), the other end of the connecting rod one (31) is sequentially threaded with the lock nut (72) and the connecting rod two (32), the other end of the connecting rod two (32) is radially connected with the dial rod (41), the upper and lower ends of the dial rod (41) are connected with the table frame one (51) and the table frame two (52) respectively, the table frame one (51) is L-shaped, the horizontal end surface of the table frame one (51) is vertically penetrated with the dial gauge one (61), the vertical end surface is horizontally penetrated with the dial gauge two (62), the table frame two (52) is vertically penetrated with the dial gauge three (63), the needle of the dial gauge one (61) is vertically axially directed to the top surface of the dial two (22), the needles of the dial gauge two (62) and the dial gauge three (63) are vertically directed to the two ends of the same diameter of the end surface of the dial two (22), and the distance between the needles of the dial gauge two (62) and the dial gauge three (62) and the shaft center of the dial two (22) is equal.

2. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 1, characterized in that: The half-coupling one (11) and the dial one (21), and the half-coupling two (12) and the dial two (22) are connected and fixed through the hexagonal bolt (71).

3. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 1, characterized in that: The dial one (21) is threaded with the connecting rod one (31).

4. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 1, characterized in that: The outer surface of the connecting rod one (31) is provided with external threads, the inside of the connecting rod two (32) is a hollow structure provided with internal threads, and the connecting rod one (31) can be screwed in and out of the connecting rod two (32).

5. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 1, characterized in that: The connecting rod two (32) and the dial rod (41) are connected and fixed through the internal hexagonal screw (73).

6. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to any one of claims 1-5, characterized in that: The upper and lower ends of the dial rod (41) are both provided with the insertion slot (81), and the table frame one (51) and the table frame two (52) are inserted into the insertion slot (81).

7. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to any one of claims 6, characterized in that: The insertion slot (81), the table frame one (51) and the part of the table frame two (52) inserted into the insertion slot (81) are all provided with multiple screw holes (82) at intervals, which are used for adjusting the length of the table frame one (51) and the table frame two (52).

8. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 7, characterized in that: The dial rod (41) and the table frame one (51) and the table frame two (52) are connected and fixed through the fastening screw (74).

9. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 8, characterized in that: The table frame one (51) is provided with the through hole one (91) and the through hole two (92) for inserting the dial gauge one (61) and the dial gauge two (62) respectively, and the table frame two (52) is provided with the through hole three (93) for inserting the dial gauge three (63).

10. The three-surface alignment tool for JMIJ, JMIIJ type diaphragm coupling according to claim 9, characterized in that: The table frame one (51) and the dial gauge one (61) and the dial gauge two (62), and the table frame two (52) and the dial gauge three (63) are all connected and fixed through the locking screw (75).

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