Cross rod connecting mechanism and electric pump machine coaxiality measuring device

Abstract

The invention discloses a cross rod connecting mechanism, and relates to the technical field of coaxiality measurement, and the cross rod connecting mechanism comprises two pipe clamp assemblies which are respectively used for fixing two cylindrical rods which are axially arranged in a cross manner; the connecting assembly is used for connecting the two pipe clamp assemblies; the pipe clamp assembly comprises an abutting frame, two clamping arms and locking rods, wherein the two clamping arms are arranged at the two ends of the abutting frame and are symmetrical in structure, and the locking rods are used for connecting the abutting frame and the clamping arms. The abutting frame is provided with at least two abutting areas which can abut against the outer circumferential face of the cylindrical rod. The cross rod connecting mechanism is arranged, cylindrical rods arranged in a cross mode can be stably and reliably fixed, the clamping force and the cross angle can be flexibly adjusted, the elastic compensation and pre-tightening functions are achieved, and the connecting stability and reliability are improved; when the device is applied to an electric pump machine coaxiality measuring device in an auxiliary mode, the positions and the angles of the supporting column and the gauge stand rod can be freely adjusted, various testing requirements are met, and the measuring accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coaxiality measurement, and in particular to a cross-rod connection mechanism and a coaxiality measuring device for an electric pump. Background Art

[0002] In the industrial field, electric pump devices are often used. In order to ensure the stable operation of the electric pump, it is necessary to accurately determine whether the installation status of the shaft meets the standards, so as to ensure that the electric pump can work smoothly and stably. During the installation, inspection and maintenance of the electric pump, there are very high requirements for the accurate measurement of the concentricity of the electric pump shaft.

[0003] Only by accurately measuring the radial and axial deviation data can the corresponding horizontal and angular adjustments be made accordingly; only by doing so can the excessive wear caused by the eccentricity between the shaft and other related components be significantly reduced, thereby effectively extending the service life of the equipment; only by doing so can the working performance of the electric pump be effectively ensured to be in an excellent state and its working efficiency be improved; and only by doing so can the risk of equipment failure be greatly reduced, thereby effectively ensuring the safety of the equipment during operation. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problem that in order to ensure the stable operation of the electric pump, it is necessary to accurately determine whether the concentricity of the electric pump shaft meets the standard, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a cross rod connection mechanism, comprising: two pipe clamp assemblies, which are respectively used to fix two axially cross-arranged cylindrical rods; and a connection assembly, which is used to connect the two pipe clamp assemblies; wherein, the pipe clamp assembly includes an abutment frame, two clamping arms which are arranged at both ends of the abutment frame and are symmetrical in structure, and a locking rod for connecting the abutment frame and the clamping arms; the abutment frame has at least two abutment areas which can abut against the outer circumferential surface of the cylindrical rod.

[0007] As a preferred solution of the cross rod connection mechanism described in the present invention, the interference frame includes two interference parts and a supporting part connected between the two interference parts; wherein, an outer edge part bent and extended outward is provided at one end of the interference part away from the supporting part, and the connection between the outer edge part and the interference part is a interference area that abuts against the outer circumferential surface of the cylindrical rod.

[0008] As a preferred solution of the cross rod connection mechanism of the present invention, one end of the clamping arm is movably connected to the outer edge portion, and the other end of the clamping arm has an arc pressure section coaxially arranged with the cylindrical rod.

[0009] As a preferred solution of the cross rod connection mechanism described in the present invention, wherein: the outer edge portion is provided with a through long groove along its extension direction; one end of the locking rod is movably connected to the clamping arm, the other end of the locking rod passes through the long groove and is provided with an external thread, and a corresponding locking nut is threadedly connected to the external threaded portion of the locking rod.

[0010] As a preferred solution of the cross rod connection mechanism of the present invention, a first spring is arranged between the clamping arm and the outer edge, a second spring is arranged between the locking nut and the outer edge, and the first spring and the second spring are both sleeved on the outside of the locking rod.

[0011] As a preferred solution of the cross rod connection mechanism of the present invention, the supporting portion is provided with two symmetrically arranged spring leaves, and the spring leaves can abut against the outer circumferential surface of the cylindrical rod.

[0012] As a preferred solution of the cross rod connection mechanism of the present invention, the connection assembly includes a connection shaft, and two symmetrically arranged positioning cylinders movably sleeved on the outside of the connection shaft, and the positioning cylinders are vertically fixed to the adjacent supporting parts on the same side.

[0013] As a preferred solution of the cross rod connection mechanism described in the present invention, the facing ends of the two positioning cylinders are provided with circumferentially arranged locking grooves, a sliding cylinder is provided between the two positioning cylinders, both ends of the sliding cylinders are provided with locking rings that can respectively engage with the locking grooves on the same side, a center ring is provided in the middle of the connecting shaft, and a third spring is provided between the center ring and the locking ring.

[0014] A coaxiality measuring device for an electric pump comprises a measuring assembly and a cross-rod connecting mechanism; wherein the measuring assembly comprises a base, a support, a meter stand rod and a micrometer, and the two pipe clamp assemblies of the cross-rod connecting mechanism are respectively used to fix the support and the meter stand rod.

[0015] Beneficial effects of the present invention: A cross rod connection mechanism is provided in the present invention, which can stably and reliably fix the cross-arranged cylindrical rods, and can flexibly adjust the clamping force and the cross angle, and has elastic compensation and pre-tightening functions, thereby improving the connection stability and reliability; it is used as an auxiliary in the coaxiality measuring device of the electric pump machine, and the position and angle of the support and the table frame rod can be freely adjusted to meet various test requirements and improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the cross rod connection mechanism of the present invention.

[0018] Figure 2 This is a diagram showing the use of the cross rod connection mechanism of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the pipe clamp assembly in the cross rod connection mechanism of the present invention.

[0020] Figure 4 It is a partial cross-sectional structural schematic diagram of the cross-rod connection mechanism of the present invention.

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] Figure 6 It is a schematic diagram of the overall structure of the coaxiality measuring device of the electric pump machine according to the present invention. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Example 1

[0028] Reference Figure 1-2 , which is the first embodiment of the present invention, provides a cross rod connection mechanism, including two pipe clamp assemblies 100 and a connection assembly 200; wherein the two pipe clamp assemblies 100 have the same structure and are used to fix two axially cross-arranged cylindrical rods; the connection assembly 200 is used to connect the two pipe clamp assemblies 100.

[0029] Furthermore, the pipe clamp assembly 100 includes a contact frame 101, two clamping arms 102 symmetrically arranged at both ends of the contact frame 101, and a locking rod 103 for connecting the contact frame 101 and the clamping arms 102. The contact frame 101 has at least two contact areas T that can abut against the outer circumference of the cylindrical rod. One end of the clamping arm 102 is hinged to the contact frame 101, so that the clamping arm 102 can move in a circle with the hinge point as the axis, and the movable end of the clamping arm 102 abuts against the cylindrical rod, and cooperates with the contact frame 101 to provide a clamping force to fix the cylindrical rod.

[0030] When in use, the abutment frame 101 is pressed against the outer wall of the cylindrical rod, and its abutment area T abuts against the outer side of the cylindrical rod; then the clamping arm 102 is folded so that its movable end also abuts against the outer side of the cylindrical rod; it is worth noting that the area of ​​the cylindrical rod where the clamping arm 102 and the abutment frame 101 abut is symmetrically distributed on both sides of the radial line of the end face of the cylindrical rod; finally, the nut on the locking rod 103 is rotated to lock the clamping arm 102 to increase the clamping force of the cylindrical rod, thereby completing the fixation of the cylindrical rod.

[0031] Example 2

[0032] Reference Figure 1 and Figure 3 to Figure 5 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the interference frame 101 includes two interference parts 101a, and a supporting part 101b connected between the two interference parts 101a; wherein, the end of the interference part 101a away from the supporting part 101b is provided with an outer edge part 101c bent and extended outwardly; preferably, in this embodiment, the connection between the outer edge part 101c and the interference part 101a is a interference area T that abuts against the outer circumferential surface of the cylindrical rod.

[0033] Furthermore, one end of the clamping arm 102 is movably connected to the outer edge 101c, and the other end of the clamping arm 102 has an arc pressure section 102a coaxially arranged with the cylindrical rod. The clamping arm 102 can rotate around the connection point with the outer edge 101c as the axis, and make the arc pressure section 102a abut against the cylindrical rod.

[0034] Furthermore, the outer edge 101c is provided with a through long groove 101c-1 along its extension direction; one end of the locking rod 103 is movably connected to the clamping arm 102, and the other end of the locking rod 103 passes through the long groove 101c-1 and is provided with an external thread, and a corresponding locking nut 104 is threadedly connected to the external thread part of the locking rod 103.

[0035] Specifically, when the arc pressure section 102a of the clamping arm 102 abuts against the outer circumferential surface of the cylindrical rod, the arc pressure section 102a of the clamping arm 102 is tightened by rotating the locking nut 104 to connect the clamping arm 102 and the outer edge 101c of the abutment frame 101, and the clamping force on the cylindrical rod can be adjusted by controlling the number of times the locking nut 104 is screwed.

[0036] Furthermore, a first spring 105 is provided between the clamping arm 102 and the outer edge portion 101 c , a second spring 106 is provided between the locking nut 104 and the outer edge portion 101 c , and both the first spring 105 and the second spring 106 are sleeved on the outside of the locking rod 103 .

[0037] Specifically, the first spring 105 is used to compensate for the gap between the clamping arm 102 and the outer edge 101c after connection, so that the connection is tighter, and when the clamping arm 102 or the outer edge 101c is slightly deformed in some cases, the first spring 105 can play a certain role in adaptation and adjustment. The second spring 106 is used to provide a pre-tightening force to prevent the bolts from loosening and enhance the tightness of the connection; at the same time, the shock-absorbing and buffering capabilities are improved. The second spring 106 can absorb and slow down vibration and impact energy, reduce adverse effects on the connection parts, and improve the stability and reliability of the connection.

[0038] Furthermore, the supporting portion 101 b is provided with two symmetrically arranged spring leaves 107 , and the spring leaves 107 can abut against the outer circumferential surface of the cylindrical rod.

[0039] Specifically, when the abutment frame 101 abuts against the outer wall of the cylindrical rod, the spring sheet 107 first contacts the cylindrical rod, and when the abutment area T of the abutment frame 101 abuts against the outer side of the cylindrical rod, the spring sheet 107 is compressed and deformed; and when the cylindrical rod is clamped by the clamping arm 102, the spring sheet 107 can further provide clamping force. When the locking nut 104 is loosened, the elastic self-adaptive characteristics of the spring sheet 107 enable the pipe clamp assembly 100 to maintain the clamping state of the cylindrical rod. When the locking nut 104 is completely unscrewed, the spring sheet 107 can push the pipe clamp assembly 100 to quickly separate from the cylindrical rod.

[0040] The remaining structures are the same as those of Example 1.

[0041] Example 3

[0042] Reference Figure 1 and Figure 3 to Figure 5 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: the connecting assembly 200 includes a connecting shaft 201, and two symmetrically arranged positioning cylinders 202 that are movably sleeved on the outside of the connecting shaft 201, and the positioning cylinders 202 are vertically fixed to the adjacent supporting parts 101b on the same side. The positioning cylinders 202 are rotatably connected to the connecting shaft 201, so that the pipe clamp assembly 100 can be rotated and adjusted, that is, the intersection angle of the two cylindrical rods is adjustable.

[0043] Furthermore, the facing ends of the two positioning cylinders 202 are provided with locking grooves 203 arranged in a circle, a sliding cylinder 204 is provided between the two positioning cylinders 202, and both ends of the sliding cylinder 204 are provided with locking rings 205 that can respectively engage with the locking grooves 203 on the same side, a center ring 206 is provided in the middle of the connecting shaft 201, and a third spring 207 is provided between the center ring 206 and the locking ring 205.

[0044] Specifically, the sliding cylinder 204 can slide along the axial direction of the connecting shaft 201 to control the locking ring 205 to engage or disengage with the locking groove 203. When the locking ring 205 engages with the locking groove 203, the positioning cylinder 202 is circumferentially limited and cannot rotate, that is, the intersection angle of the two pipe clamp assemblies 100 is locked, that is, the intersection angle of the cylindrical rod is locked; and when the locking ring 205 on one side is separated from the locking groove 203, the corresponding separated positioning cylinder 202 and the connected pipe clamp assembly 100 can be rotated and adjusted.

[0045] Furthermore, the sliding cylinder 204 is provided with an axially extending guide groove 208 , and the exterior of the center ring 206 is provided with a guide block 209 that slidably cooperates with the guide groove 208 .

[0046] Specifically, the guide groove 208 cooperates with the guide block 209 to provide a sliding guide for the sliding cylinder 204 , and at the same time, provide a circumferential limit for the connecting shaft 201 to prevent the connecting shaft 201 from rotating.

[0047] The remaining structure is the same as that of Example 2.

[0048] Example 4

[0049] Reference Figure 1 and Figure 5 , which is the fourth embodiment of the present invention, provides an electric pump coaxiality measuring device, including a measuring component 300 and the cross-rod connecting mechanism; wherein the measuring component 300 includes a base 301, a pillar 302, a meter frame rod 303 and a micrometer 304, and the two pipe clamp assemblies 100 of the cross-rod connecting mechanism are used to fix the pillar 302 and the meter frame rod 303 respectively.

[0050] Specifically, the base 301 uses a magnetic table seat with magnetic attraction characteristics. It is adsorbed on the equipment by magnetic force to provide stable support during measurement; the micrometer 304 is used to measure the coaxiality of the electric pump shaft (a dial indicator can also be used), and can accurately measure the axial and radial deviation data of the electric pump; the support 302 and the table frame rod 303 are connected by the cross rod connection mechanism. When in use, the intersection point and intersection angle of the support 302 and the table frame rod 303 can be freely adjusted to control the lateral displacement and longitudinal displacement of the micrometer 304 to meet various test requirements, keep the test head of the micrometer 304 perpendicular to the tangential surface of the contact point of the electric pump shaft, and use the circumferential locking effect of the locking ring 205 and the locking groove 203 in the connecting assembly 200 to reduce the rotation vibration of the electric pump shaft during testing, which causes the micrometer 304 to deviate and cause test errors, thereby improving the accuracy of measurement.

[0051] The remaining structure is the same as that of Example 3.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0054] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cross-bar connection mechanism, characterized in that: include, Two pipe clamp assemblies (100), respectively used to fix two cylindrical rods arranged axially crosswise; as well as, A connecting assembly (200) used to connect two pipe clamp assemblies (100); The pipe clamp assembly (100) comprises a contact frame (101), two clamping arms (102) which are arranged at both ends of the contact frame (101) and are symmetrical in structure, and a locking rod (103) used to connect the contact frame (101) and the clamping arms (102); the contact frame (101) has at least two contact areas (T) which can abut against the outer circumferential surface of a cylindrical rod.

2. The cross-bar connection mechanism according to claim 1, characterized in that: The abutment frame (101) comprises two abutment parts (101a) and a supporting part (101b) connected between the two abutment parts (101a); The end of the abutment portion (101a) away from the supporting portion (101b) is provided with an outer edge portion (101c) bent and extended outwards, and the connection between the outer edge portion (101c) and the abutment portion (101a) is a abutment zone (T) abutting against the outer circumferential surface of the cylindrical rod.

3. The cross-bar connection mechanism according to claim 2, characterized in that: One end of the clamping arm (102) is movably connected to the outer edge portion (101c), and the other end of the clamping arm (102) has an arc pressure section (102a) coaxially arranged with the cylindrical rod.

4. The cross-bar connection mechanism according to claim 3, characterized in that: The outer edge portion (101c) is provided with a through long groove (101c-1) along its extension direction; One end of the locking rod (103) is movably connected to the clamping arm (102), the other end of the locking rod (103) passes through the long groove (101c-1) and is provided with an external thread, and a matching locking nut (104) is threadedly connected to the external thread portion of the locking rod (103).

5. The cross-bar connection mechanism according to claim 4, characterized in that: A first spring (105) is arranged between the clamping arm (102) and the outer edge portion (101c), a second spring (106) is arranged between the locking nut (104) and the outer edge portion (101c), and the first spring (105) and the second spring (106) are both sleeved on the outside of the locking rod (103).

6. The cross-bar connection mechanism according to claim 5, characterized in that: The supporting portion (101b) is provided with two symmetrically arranged spring sheets (107), and the spring sheets (107) are capable of abutting against the outer circumferential surface of the cylindrical rod.

7. The cross-bar connection mechanism according to claim 6, characterized in that: The connection assembly (200) comprises a connection shaft (201), and two symmetrically arranged positioning cylinders (202) movably sleeved on the outside of the connection shaft (201), wherein the positioning cylinders (202) are vertically fixed to the adjacent supporting parts (101b) on the same side.

8. The cross-bar connection mechanism according to claim 7, characterized in that: The facing ends of the two positioning cylinders (202) are provided with locking grooves (203) arranged in a circumferential pattern, a sliding cylinder (204) is provided between the two positioning cylinders (202), and both ends of the sliding cylinder (204) are provided with locking rings (205) that can respectively engage with the locking grooves (203) on the same side, a center ring (206) is provided in the middle of the connecting shaft (201), and a third spring (207) is provided between the center ring (206) and the locking ring (205).

9. The cross-bar connection mechanism according to claim 8, characterized in that: The sliding cylinder (204) is provided with an axially extending guide groove (208), and the exterior of the center ring (206) is provided with a guide block (209) that is slidably matched with the guide groove (208).

10. An electric pump coaxiality measuring device, characterized in that: It comprises a measuring assembly (300) and a cross-bar connection mechanism as claimed in any one of claims 1 to 9; The measuring assembly (300) comprises a base (301), a support column (302), a meter stand rod (303) and a micrometer (304), and the two pipe clamp assemblies (100) of the cross-bar connection mechanism are used to fix the support column (302) and the meter stand rod (303) respectively.

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