Alignment device
By designing an alignment device including a connection structure, a flexible protective layer and a detection bracket, the alignment status of the cylinder shaft head of a centrifugal compressor unit is automatically detected and adjusted, thereby solving the error problem caused by manual alignment and improving the working stability and accuracy of the equipment.
Patent Information
- Application Number
- CN202422923060.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In the prior art, the cylinder shaft head alignment process of a centrifugal compressor unit relies on manual operation, which results in large errors and affects the smooth operation of the equipment.
A alignment device is designed, including a connecting structure, a flexible protective layer and a detection bracket. The detection space of the detection bracket forms the same extension line with the connection part of the connecting structure. The alignment status of the cylinder shaft head is detected by a dial indicator, and the cylinder position is automatically adjusted to reduce the error.
Through automated detection and adjustment, the error in the cylinder shaft head alignment process is significantly reduced, and the working stability and accuracy of the equipment are improved.
Smart Images
Figure CN223435569U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of mechanical installation and maintenance, and in particular to an alignment device. Background Art
[0002] Centrifugal compressor units are widely used due to their high outlet pressure and large flow rate, especially in the chemical, petroleum, and natural gas industries.
[0003] The multiple cylinders of the centrifugal compressor unit are divided into multiple groups, each group includes two cylinders, and the two shaft heads of the two cylinders in each group are connected by a coupling so that the two cylinders in each group can work synchronously.
[0004] To ensure smooth operation of two cylinders connected by a coupling, it is necessary to ensure the precise alignment of the two shaft heads connected by the coupling. However, the current alignment work is determined manually, which is prone to errors. Utility Model Content
[0005] The present disclosure provides an alignment device, which can be used to align and confirm two shaft heads in a group of cylinder bodies, thereby reducing errors.
[0006] In order to solve the above technical problems, the present disclosure provides an alignment device, which may include: a connecting structure, a flexible protective layer and a detection bracket, wherein the two ends of the connecting structure extending along the first direction are respectively provided with a first connecting part and a second connecting part, and the dimension of the first connecting part along the second direction perpendicular to the first direction is smaller than the dimension of the connecting structure along the second direction, so that an annular step surface is formed between the first connecting part and the connecting structure; the flexible protective layer is sleeved on the first connecting part and abuts the step surface; the detection bracket is connected to the second connecting part, and a detection space is provided on the side of the detection bracket facing away from the connecting structure, and a straight line extending along the first direction in the detection space and passing through the midpoint of the detection space along the second direction and a straight line extending along the first direction and passing through the midpoint of the connection space of the first connecting part along the second direction are on the same extended line, and the detection bracket is provided with a first through hole extending along the second direction and connected to the detection space, and a second through hole extending along the first direction and connected to the detection space.
[0007] In some embodiments, the first direction is from right to left, and the second direction is a vertically downward direction; the thickness dimensions of the flexible protective layer at different positions along the first direction are consistent, and the density of the flexible protective layer corresponding to the upper side of the axis of the first connecting portion extending along the first direction is less than the density of the flexible protective layer corresponding to the lower side of the axis of the first connecting portion extending along the first direction.
[0008] In some embodiments, the density of the flexible protective layer along the second direction increases.
[0009] In some embodiments, the detection bracket includes: a first rod body and a second rod body, the first rod body extends along the second direction and is connected to the second connecting portion, the second rod body is vertically connected to one end of the first rod body, and the other end of the second rod body corresponds to the side of the first rod body facing away from the second connecting portion, the right-angle space formed by the second rod body and the first rod body is the detection space, and the first rod body is provided with the second through-hole and the second rod body is provided with the first through-hole.
[0010] In some embodiments, the second rod body is provided with a first limiting hole perpendicular to the first through-hole; the first rod body is provided with a second limiting hole perpendicular to the second through-hole.
[0011] In some embodiments, the connecting structure includes: a first connecting rod and a second connecting rod; the first connecting rod extends along the first direction, a protrusion extending spirally along the first direction is provided in the first connecting rod, and the first connecting portion is provided at one end of the first connecting rod along the first direction; the second connecting rod is a screw rod extending along the first direction, and the second connecting rod is connected to the protrusion of the first connecting rod at one end along the first direction, and can change the length of the first connecting rod and the second connecting rod in the first direction under the action of rotation, and the second connecting rod is provided with the second connecting portion at the other end along the first direction.
[0012] In some embodiments, the connection structure further includes: a limiting member, which is sleeved on the second connecting rod and threadedly connected to the second connecting rod, and the limiting member abuts against the first connecting rod.
[0013] In some embodiments, the second connecting portion has a first connecting surface perpendicular to the first direction; a side surface of the first rod in the length direction is in contact with the first connecting surface and is fixed relative to the first connecting surface.
[0014] In some embodiments, the second connecting portion is a U-shaped structure, the opening of the U-shaped structure faces away from the second connecting rod, the inner bottom wall of the U-shaped structure is the first connecting surface, and the two extending arms of the U-shaped structure facing each other are respectively provided with a first fixing hole and a second fixing hole; the first rod body passes through the interior of the U-shaped structure and abuts the first connecting surface; the detection bracket also includes: a first push rod and a second push rod, the first push rod passes through the first fixing hole and abuts the first rod body in the U-shaped structure, the second push rod passes through the second fixing hole and abuts the first rod body in the U-shaped structure, and the length of the first push rod and the second push rod extending into the U-shaped structure is adjustable.
[0015] In some embodiments, the circumferential side surface of the first connecting portion extending along the first direction is provided with a fastening thread; the opposite side walls of the first connecting rod extending along the first direction are respectively provided with a first opening and a second opening, and the first opening and the second opening are opposite to each other.
[0016] Through the above technical solution, the alignment device provided by the present disclosure is respectively provided with a first connecting portion and a detection bracket at both ends along the first direction, the axis of the connecting space of the first connecting portion extending along the first direction and the axis of the detection space of the detection bracket extending along the first direction are on the same extension line, the connecting space is used to connect with the first shaft head on the first cylinder (such as: one of the cylinders in a group of cylinders), and the axis of the first shaft head extending along the first direction after connection coincides with the axis of the connecting space extending along the first direction, and the detection space is used to detect whether the axis of the second shaft head on the second cylinder (such as: another cylinder in a group of cylinders) extending along the first direction coincides with the axis of the detection space extending along the first direction; if they coincide, it means that the first shaft head and the second shaft head are aligned with each other; if they do not coincide, it means that the first shaft head and the second shaft head are not aligned, and at this time the position of the second cylinder is raised or lowered until the axis of the second shaft head extending along the first direction coincides with the axis of the detection space extending along the first direction to complete the alignment operation. In this way, the alignment process is judged by the alignment device to reduce the probability of errors in the alignment results.
[0017] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and to implement them according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 A schematic structural diagram of an alignment device provided in one embodiment of the present disclosure;
[0020] Figure 2 A schematic diagram of the partial structure of an alignment device provided in one embodiment of the present disclosure;
[0021] Figure 3 A schematic structural diagram of an alignment device in an alignment state provided by an embodiment of the present disclosure;
[0022] Figure 4 A schematic structural diagram of a first cylinder (first perspective) provided by the present disclosure;
[0023] Figure 5 A schematic structural diagram of the first cylinder provided by the present invention (second perspective);
[0024] Figure 6 This is a structural schematic diagram of the second cylinder body and part of the alignment device provided by the present invention in the alignment state;
[0025] Figure 7 A schematic structural diagram of an alignment device provided in another embodiment of the present disclosure;
[0026] Figure 8 A schematic diagram of the partial cross-sectional structure of an alignment device provided in yet another embodiment of the present disclosure.
[0027] Description of reference numerals:
[0028] 10. Alignment device; 11. Connection structure; 111. First connection portion; 1111. Step surface; 1112. Connection space; 1113. Annular groove; 112. Second connection portion; 1121. First connection surface; 1122. First fixing hole; 1123. Second fixing hole; 1124. Second push rod; 113. First connecting rod; 1131. First section; 1132. Second section; 1133. First opening; 1134. Second opening; 114. Second connecting rod; 115. Limit Component; 12. Flexible protective layer; 13. Detection bracket; 131. Detection space; 132. First through-hole; 133. First rod; 134. Second rod; 135. First limiting hole; 1351. First limiting screw; 136. Dial indicator; 137. Second through-hole; 138. Second limiting hole; 1381. Second limiting screw; 20. First cylinder; 21. First shaft head; 211. First connecting recess; 212. First diaphragm; 30. Second cylinder; 31. Second shaft head. DETAILED DESCRIPTION
[0029] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.
[0030] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.
[0031] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0032] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.
[0033] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.
[0034] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.
[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0036] The multiple cylinders of the centrifugal compressor unit are divided into multiple groups, each group includes two cylinders, and the two shaft heads of the two cylinders in each group are connected by a coupling so that the two cylinders in each group can work synchronously.
[0037] To ensure smooth operation of two cylinders connected by a coupling, it is necessary to ensure the precise alignment of the two shaft heads connected by the coupling. However, the current alignment work is determined manually, which is prone to errors.
[0038] In view of the above technical problems, the alignment device provided by the present disclosure is respectively provided with a first connecting portion and a detection bracket at both ends along the first direction, the axis of the connecting space of the first connecting portion extending along the first direction and the axis of the detection space of the detection bracket extending along the first direction are on the same extension line, the connecting space is used to connect with the first shaft head on the first cylinder (such as: one of the cylinders in a group of cylinders), and the axis of the first shaft head extending along the first direction after connection coincides with the axis of the connecting space extending along the first direction, the detection space is used to detect whether the axis of the second shaft head on the second cylinder (such as: another cylinder in a group of cylinders) extending along the first direction coincides with the axis of the detection space extending along the first direction; if they coincide, it means that the first shaft head and the second shaft head are aligned with each other; if they do not coincide, it means that the first shaft head and the second shaft head are not aligned, at this time, the position of the second cylinder is raised or lowered until the axis of the second shaft head extending along the first direction coincides with the axis of the detection space extending along the first direction to complete the alignment operation. The alignment process is judged by the alignment device to reduce the probability of errors in the alignment results.
[0039] See also Figures 1 to 8 As shown, the alignment device 10 may include: a connecting structure 11, a flexible protective layer 12 and a detection bracket 13, the two ends of the connecting structure 11 extending along the first direction are respectively provided with a first connecting portion 111 and a second connecting portion 112, the dimension of the first connecting portion 111 along the second direction perpendicular to the first direction is smaller than the dimension of the connecting structure 11 along the second direction, so that an annular step surface 1111 is formed between the first connecting portion 111 and the connecting structure 11; the flexible protective layer 12 is sleeved on the first connecting portion 111 and abuts against the step surface 1111; the detection bracket 13 is connected to the second connecting portion 112, and a detection space 131 is provided on the side of the detection bracket 13 facing away from the connecting structure 11, and a straight line extending along the first direction in the detection space 131 and passing through the midpoint of the detection space 131 along the second direction and a straight line extending along the first direction in the connection space 1112 of the first connecting portion 111 and passing through the midpoint of the first connecting portion 111 along the second direction are on the same extended line (as shown in FIG. Figure 3 and Figure 7 ), and the detection bracket 13 is provided with a first penetration hole 132 extending along the second direction and communicating with the detection space 131, and a second penetration hole 137 extending along the first direction and communicating with the detection space 131.
[0040] The first direction can be horizontal, vertical, or inclined to the horizontal direction, and the second direction is perpendicular to the first direction; for example: the first direction is horizontal and from right to left, and the second direction is vertical and from top to bottom. The following uses this as an example for explanation.
[0041] The connecting structure 11 has a first connecting portion 111 at its right end and a second connecting portion 112 at its left end. The first connecting portion 111 and / or the second connecting portion 112 can be integrally formed with the connecting structure 11, or can be provided on the connecting structure 11 by a detachable connection such as screws. The first connecting portion 111 has a connecting space 1112 to be connected to the first shaft head 21. The connecting space 1112 can be located on the circumference of the first connecting portion 111 along the first direction so that it can be connected as shown in FIG. Figures 1 to 3 The first connecting recess 211 shown in the figure is inserted into and screwed into the first connecting recess 211 of the first shaft head 21 (the first connecting recess 211 is the recess for connecting the hydraulic propeller during the operation of the centrifugal compressor unit), or it can be inserted into the first connecting recess 211 and interference fit with the first connecting recess 211, or it can be other settings. The second connecting portion 112 is used to connect to the detection bracket 13, which can be a non-detachable fixed connection with the detection bracket 13 by welding, integral molding, etc., or it can be a detachable connection with the detection bracket 13 by snap-fitting, etc. The connecting structure 11 can be a rigid part to increase the structural strength of the connecting structure 11 and extend the service life of the connecting structure 11.
[0042] The flexible protective layer 12 is at least used to provide anti-collision and anti-extrusion protection for the first shaft head 21 connected to the first connecting part 111. The shape and size of the flexible protective layer 12 may be consistent with or inconsistent with the step surface 1111. For example, the flexible protective layer 12 is annular and its size is consistent with the size of the step surface 1111. After the flexible protective layer 12 is sleeved on the first connecting part 111, an inner surface of the flexible protective layer 12 abuts against a circumferential side surface of the first connecting part 111, and an outer surface of the flexible protective layer 12 is flush with an outer edge of the step surface 1111 formed by the connecting structure 11. For another example, the flexible protective layer 12 is annular and its radial size is greater than the radial size of the step surface 1111. The space between the step surface 1111 and the first connecting part 111 is as shown in FIG. Figure 8 The recess shown in FIG. 1 has an annular groove 1113. After the flexible protective layer 12 is sleeved on the first connecting portion 111, an inner surface of the flexible protective layer 12 abuts against an inner bottom wall of the annular groove 1113, and an outer surface of the flexible protective layer 12 is flush with an outer edge of the step surface 1111 formed by the connecting structure 11. The annular groove 1113 in this arrangement can limit the flexible protective layer 12 to reduce the probability of the flexible protective layer 12 falling off the first connecting portion 111. The flexible protective layer 12 can be a layered structure made of a flexible material such as sponge, asbestos, or cotton cloth.
[0043] The detection bracket 13 is at least used to form a detection space 131 to detect the axial position of the second shaft head 31. The first through hole 132 on the detection bracket 13 is used to assemble a dial indicator 136. The head of the dial indicator 136 corresponds to the detection space 131, and the distance between the head of the dial indicator 136 and the axis of the detection space 131 extending along the first direction (the length direction of the distance extends along the second direction) is equal to the distance between the axis of the second shaft head 31 extending along the first direction and the circumferential surface of the second shaft head 31. In this way, when the second shaft head 31 is located in the detection space 131, it is confirmed whether the dial indicator 136 abuts the circumferential surface of the second shaft head 31. If so, it is confirmed that the first shaft head 21 and the second shaft head 31 are aligned with each other, otherwise they are not aligned with each other. The second through-hole 137 is also used to assemble the dial indicator 136, but the head of the dial indicator 136 assembled in the second through-hole 137 is used to abut the end face of one end of the second shaft head 31 extending along the first direction in the detection space 131, so that the dial indicator 136 of the first through-hole 132 and the dial indicator 136 of the second through-hole 137 can limit the mutually perpendicular circumferential side surface and end face of the second shaft head 31 respectively, and when at least one of the two dial indicators 136 is not abutted, it can be further checked whether the axial direction of the second cylinder body 30 is tilted relative to the first direction, so as to further improve the alignment accuracy.
[0044] In one example, see Figures 1 to 7 As shown, the alignment device 10 may include: a connecting structure 11, a flexible protective layer 12 and a detection bracket 13, the connecting structure 11 is respectively provided with a first connecting portion 111 and a second connecting portion 112 at both ends extending along the first direction, the dimension of the first connecting portion 111 along the second direction perpendicular to the first direction is smaller than the dimension of the connecting structure 11 along the second direction so as to form an annular step surface 1111 between the connecting structure 11; the flexible protective layer 12 is sleeved on the first connecting portion 111 and abuts against the step surface 1111; the detection bracket 13 is connected to the second connecting portion 112, and a detection space 131 is provided on the side of the detection bracket 13 facing away from the connecting structure 11, the detection space 131 extends along the first direction and passes through the midpoint of the detection space 131 along the second direction, and the straight line extending from the first connecting portion 111 along the first direction and passing through the midpoint of the connection space 1112 of the first connecting portion 111 along the second direction is on the same extended line (as shown in FIG. Figure 3 and Figure 7), and the detection bracket 13 is provided with a first through-hole 132 extending along the second direction and communicating with the detection space 131, and a second through-hole 137 extending along the first direction and communicating with the detection space 131. Among them, a group of cylinder bodies includes a first cylinder body 20 and a second cylinder body 30, and a first connecting recess 211 with a threaded structure is provided on the first shaft head 21 of the first cylinder body 20, and a first diaphragm 212 is provided on a circle edge of the opening of the first connecting recess 211 corresponding to the first shaft head 21. One end of the coupling and the shaft head structure on the side of the first diaphragm 212 on the first shaft head 21 are connected by a first set of screws, and the other end of the coupling and the second shaft head 31 are connected by a second set of screws, so that the first cylinder body 20 and the second cylinder body 30 in a group of cylinder bodies are connected by a coupling. When detecting the coaxiality of the first cylinder body 20 and the second cylinder body 30, the following steps can be performed:
[0045] S101: Connect the first connecting portion 111 to the first connecting recess 211 of the first shaft head 21, so that the first diaphragm 212 and the step surface 1111 on the connected first shaft head 21 squeeze the flexible protective layer 12;
[0046] S102: Confirm whether the dial indicator 136 inserted into the first hole 132 abuts against the peripheral surface of the second shaft head 31, and whether the dial indicator 136 inserted into the second hole 137 abuts against the end face of the second shaft head 31; if both abut, the first shaft head 21 and the second shaft head 31 are in an aligned state; otherwise, the first shaft head 21 and the second shaft head 31 are in a non-aligned state.
[0047] In this embodiment, the alignment process is determined by the alignment device 10, thereby reducing the probability of errors in the alignment results. In addition, the flexible protective layer 12 is sandwiched between the first diaphragm 212 and the stepped surface 1111 to reduce the probability of scratches on the first diaphragm 212 caused by rigid collision between the first diaphragm 212 and the stepped surface 1111. It also reduces the probability of deformation of the first diaphragm 212 caused by the weight of the alignment device 10 squeezing the lower half of the first diaphragm 212, thereby reducing the probability of alignment deviation.
[0048] In some embodiments, see Figures 1 to 3 and Figure 7As shown, the first direction is from right to left, and the second direction is vertically downward. The thickness of the flexible protective layer 12 at different locations along the first direction is consistent, and the density of the flexible protective layer 12 corresponding to the upper side of the axis of the first connecting portion 111 extending along the first direction is less than the density of the flexible protective layer 12 corresponding to the lower side of the axis of the first connecting portion 111 extending along the first direction. In other words, the density of the upper half of the flexible protective layer 12 is less than the density of the lower half. In this way, after the alignment device 10 is connected to the first shaft head 21, the alignment device 10's own weight will squeeze the lower half of the flexible protective layer 12 with a higher density. This allows the thickness of the upper half and the thickness of the lower half of the flexible protective layer 12 to remain consistent (including absolute consistency and approximate consistency) after the alignment device 10 is connected to the first shaft head 21. This can reduce the probability of inconsistent thickness due to deformation of the flexible protective layer 12, which in turn leads to inaccurate detection results.
[0049] In some embodiments, the density of the flexible protective layer 12 along the second direction increases. Thus, after the alignment device 10 is connected to the first spindle head 21, the thickness of the upper and lower portions of the flexible protective layer 12 can deform uniformly and remain consistent, thereby reducing the chance of inconsistent thickness due to deformation of the flexible protective layer 12, which in turn could lead to inaccurate test results. Furthermore, the uniform deformation can reduce the chance of the alignment device 10 suddenly falling or shaking during connection to the first spindle head 21.
[0050] In some embodiments, see Figure 1 、 Figure 3 、 Figure 6 and Figure 7 As shown, the detection bracket 13 includes: a first rod body 133 and a second rod body 134. The first rod body 133 extends along the second direction and is connected to the second connecting portion 112. The second rod body 134 is vertically connected to one end of the first rod body 133. The other end of the second rod body 134 corresponds to the side of the first rod body 133 facing away from the second connecting portion 112. The right-angle space formed by the second rod body 134 and the first rod body 133 is the detection space 131, and the first rod body 133 is provided with a second through-hole 137, and the second rod body 134 is provided with a first through-hole 132.
[0051] The first rod 133 can be a rod-shaped rod with a square, rectangular, or regular hexagonal cross-section. The middle portion of the first rod 133 extending in the second direction can be connected to the second connecting portion 112, thereby creating an aesthetically pleasing visual effect for the first rod 133 and the second connecting portion 112. The second rod 134 can be a rod with a square, rectangular, or regular hexagonal cross-section. The second rod 134 is connected to one end of the first rod 133 along the second direction to form a right-angled structure (e.g., an L-shaped structure) with the first rod 133. The right-angled space within this right-angled structure serves as the detection space 131. The number of the first through-holes 132 provided on the second rod body 134 can be multiple, and the multiple first through-holes 132 are distributed along the first direction. Each first through-hole 132 can be respectively provided with a dial indicator 136. In this way, whether the axis of the second cylinder body 30 is tilted relative to the first direction can be confirmed by checking whether the multiple dial indicators 136 of the multiple first through-holes 132 all abut against the circumferential surface of the second shaft head 31. If it is confirmed to be tilted, the inclination of the second cylinder body 30 can be adjusted until the multiple dial indicators 136 of the multiple first through-holes 132 all abut against the circumferential surface of the second shaft head 31, thereby making the detection result more accurate.
[0052] In some embodiments, see Figure 1 、 Figure 3 、 Figure 6 and Figure 7 As shown, the second rod body 134 is provided with a first limiting hole 135 perpendicular to the first through hole 132 ; the first rod body 133 is provided with a second limiting hole 138 perpendicular to the second through hole 137 .
[0053] The first limiting hole 135 can be a threaded hole, a straight screw (such as Figure 1 as shown) or butterfly screws (as shown Figure 3 or Figure 7 The first limiting screw 1351 can be screwed into the first limiting hole 135 and abut against the dial indicator 136 provided in the first through-hole 132 to limit the position of the dial indicator 136 provided in the first through-hole 132; the second limiting hole 138 can be a threaded hole, and a linear screw (such as Figure 1 as shown) or butterfly screws (as shown Figure 3 or Figure 7 A second limiting screw 1381 (shown in FIG. 1 ) can be screwed into the second limiting hole 138 and abut the dial indicator 136 provided in the first through-hole 132 to limit the position of the dial indicator 136 provided in the second through-hole 137. This can reduce the risk of the dial indicator 136 in the first through-hole 132 and the dial indicator 136 in the second through-hole 137 shifting relative to the detection bracket 13 during the detection process, thereby reducing the impact of the deviation in the detection results.
[0054] In some embodiments, see Figures 1 to 3 and Figure 7 As shown, the connecting structure 11 may include: a first connecting rod 113 and a second connecting rod 114; the first connecting rod 113 extends along the first direction, and a protrusion extending spirally along the first direction is provided in the first connecting rod 113, and a first connecting portion 111 is provided at one end of the first connecting rod 113 along the first direction; the second connecting rod 114 is a screw rod extending along the first direction, and one end of the second connecting rod 114 along the first direction is connected to the protrusion of the first connecting rod 113 in a concave-convex manner, and can change the length of the first connecting rod 113 and the second connecting rod 114 in the first direction under the action of rotation, and the second connecting rod 114 is provided with a second connecting portion 112 at the other end along the first direction.
[0055] The outer contour of the cross section of the first connecting rod 113 extending along the second direction can be a circle, a square, a rectangle, a regular pentagon, or the like; the first connecting rod 113 can include a first section 1131 and a second section 1132 in the first direction, the first section 1131 being provided with a protrusion extending in a spiral shape along the first direction so as to be connected to the second connecting rod 114, the inner diameter of the second section 1132 being larger than the inner diameter of the first section 1131, and this arrangement does not affect the rotation of the second connecting rod 114 relative to the first connecting rod 113 to adjust the length of the first connecting rod 113 and the second connecting rod 114 in the first direction, and the second section 1132 can be provided with no protrusion extending in a spiral shape along the first direction, thereby simplifying the manufacturing process and shortening the manufacturing process. The rotation of the second connecting rod 114 relative to the first connecting rod 113 can adjust the length of the first connecting rod 113 and the second connecting rod 114 in the first direction, so as to detect the coaxiality of the first cylinder body 20 and the second cylinder body 30 at different distances.
[0056] In some embodiments, see Figure 1 and Figure 7 As shown, the connection structure 11 may further include: a limiting member 115, which is sleeved on the second connecting rod 114 and threadedly connected to the second connecting rod 114, and the limiting member 115 abuts the first connecting rod 113. In other words, the limiting member 115 may be a nut. When the second connecting rod 114 rotates relative to the first connecting rod 113 to adjust the length of the second connecting rod 114 and the first connecting rod 113 in the first direction, the limiting member 115 can rotate relative to the second connecting rod 114 or not to achieve the purpose of still abutting the first connecting rod 113. In this way, the position of the second connecting rod 114 can be limited by the limiting member 115, thereby ensuring that the total length of the first connecting rod 113 and the second connecting rod 114 in the first direction does not change during the detection process, thereby ensuring detection efficiency.
[0057] In some embodiments, see Figure 1 and Figure 2As shown, the second connecting portion 112 has a first connecting surface 1121 perpendicular to the first direction; a side surface along the length direction of the first rod 133 is in contact with the first connecting surface 1121 and is fixed relative to the first connecting surface 1121. The side surface along the length direction of the first rod 133 and the first connecting surface 1121 of the second connecting portion 112 are in contact with each other and are relatively fixed to each other, thereby reducing the probability of the detection bracket 13 tilting relative to the first direction, thereby ensuring the accuracy of the detection results.
[0058] In some embodiments, see Figures 1 to 3 As shown, the second connecting portion 112 is a U-shaped structure, the opening of the U-shaped structure faces away from the second connecting rod 114, the inner bottom wall of the U-shaped structure is a first connecting surface 1121, and the two extending arms of the U-shaped structure opposite to each other are respectively provided with a first fixing hole 1122 and a second fixing hole 1123; the first rod body 133 passes through the interior of the U-shaped structure and abuts the first connecting surface 1121; the detection bracket 13 also includes: a first push rod (not shown in the figure) and a second push rod 1124, the first push rod passes through the first fixing hole 1122 and abuts the first rod body 133 in the U-shaped structure, the second push rod 1124 passes through the second fixing hole 1123 and abuts the first rod body 133 in the U-shaped structure, and the length of the first push rod and the second push rod 1124 extending into the U-shaped structure is adjustable.
[0059] That is to say, the first rod body 133 is inserted into the U-shaped structure, and the front and rear sides of the first rod body 133 are squeezed respectively by the first push rod and the second push rod 1124 to limit the position of the first rod body 133. Moreover, since the lengths of the first push rod and the second push rod 1124 extending into the U-shaped structure are adjustable, the position of the first rod bodies 133 of different thicknesses can be limited.
[0060] Here, the first push rod can be a screw, so that the length of the push rod inserted into the U-shaped structure can be adjusted by rotating relative to the first fixing hole 1122, and the screw is threadedly engaged with the first fixing hole 1122 so that it can be fixed relative to the first fixing hole 1122 after rotation; it can also be a stud, so that the length of the push rod inserted into the U-shaped structure can be adjusted by rotating relative to the first fixing hole 1122, and the stud is interference-fitted with the first fixing hole 1122 so that it can be fixed relative to the first fixing hole 1122 after rotation; other structural arrangements are also possible. The arrangement of the second push rod 1124 and the second fixing hole 1123 can refer to the arrangement of the first push rod and the first fixing hole 1122, and will not be repeated here.
[0061] In some embodiments, see Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8As shown, the circumferential side surface of the first connecting portion 111 extending in the first direction is provided with a fastening thread; the opposite side walls of the first connecting rod 113 extending in the first direction are respectively provided with a first opening 1133 and a second opening 1134, with the first opening 1133 and the second opening 1134 facing each other. Thus, when connecting or disconnecting the fastening thread of the first connecting portion 111 from the thread within the first connecting recess 211 of the first shaft head 21, a long rod can be inserted through the first opening 1133 and the second opening 1134 and a rotational force applied to the long rod. This can reduce the occurrence of low working efficiency caused by the difficulty in gripping and applying rotational force on the first connecting rod 113.
[0062] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.
[0063] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.
Claims
1. A aligning device, characterized in that: include: A connecting structure, wherein two ends extending along a first direction are respectively provided with a first connecting portion and a second connecting portion, wherein a dimension of the first connecting portion along a second direction perpendicular to the first direction is smaller than a dimension of the connecting structure along the second direction, so that an annular step surface is formed between the first connecting portion and the connecting structure; a flexible protective layer, sleeved on the first connecting portion and abutting against the step surface; A detection bracket is connected to the second connecting part, and a detection space is provided on the side of the detection bracket facing away from the connecting structure. A straight line extending along the first direction in the detection space and passing through the midpoint of the detection space along the second direction and a straight line extending along the first direction in the connection space of the first connecting part and passing through the midpoint of the first connecting part along the second direction are on the same extension line, and the detection bracket is provided with a first through hole extending along the second direction and connected to the detection space, and a second through hole extending along the first direction and connected to the detection space.
2. The alignment device according to claim 1, characterized in that: The first direction is from right to left, and the second direction is vertically downward; The thickness dimensions of the flexible protective layer at different positions along the first direction are consistent, and the density of the flexible protective layer corresponding to the upper side of the axis of the first connecting portion extending along the first direction is less than the density of the flexible protective layer corresponding to the lower side of the axis of the first connecting portion extending along the first direction.
3. The alignment device according to claim 2, characterized in that: The density of the flexible protective layer along the second direction tends to increase.
4. The alignment device according to claim 1, characterized in that: The detection bracket includes: a first rod body and a second rod body, the first rod body extends along the second direction and is connected to the second connecting portion, the second rod body is vertically connected to one end of the first rod body, and the other end of the second rod body corresponds to the side of the first rod body facing away from the second connecting portion, the right-angle space formed by the second rod body and the first rod body is the detection space, and the first rod body is provided with the second through-hole and the second rod body is provided with the first through-hole.
5. The alignment device according to claim 4, characterized in that: The second rod body is provided with a first limiting hole perpendicular to the first through hole; The first rod body is provided with a second limiting hole perpendicular to the second through hole.
6. The alignment device according to claim 4 or 5, characterized in that: The connecting structure includes: a first connecting rod and a second connecting rod; The first connecting rod extends along the first direction, a protrusion extending in a spiral shape along the first direction is provided in the first connecting rod, and the first connecting portion is provided at one end of the first connecting rod along the first direction; The second connecting rod is a screw rod extending along the first direction. One end of the second connecting rod along the first direction is connected to the convex and concave of the first connecting rod, and can change the length of the first connecting rod and the second connecting rod in the first direction under the action of rotation. The other end of the second connecting rod along the first direction is provided with the second connecting part.
7. The alignment device according to claim 6, characterized in that: The connection structure further includes a limiting member, which is sleeved on the second connecting rod and connected to the second connecting rod by threaded engagement, and the limiting member abuts against the first connecting rod.
8. The alignment device according to claim 6, characterized in that: The second connecting portion has a first connecting surface perpendicular to the first direction; One side surface of the first rod in the length direction is in contact with the first connecting surface and is fixed relative to the first connecting surface.
9. The alignment device according to claim 8, characterized in that: The second connecting portion is a U-shaped structure, the opening of the U-shaped structure faces away from the second connecting rod, the inner bottom wall of the U-shaped structure is the first connecting surface, and the two extending arms of the U-shaped structure facing each other are respectively provided with a first fixing hole and a second fixing hole; The first rod passes through the interior of the U-shaped structure and abuts against the first connecting surface; The detection bracket also includes: a first push rod and a second push rod, the first push rod passes through the first fixing hole and abuts the first rod body in the U-shaped structure, the second push rod passes through the second fixing hole and abuts the first rod body in the U-shaped structure, and the lengths of the first push rod and the second push rod extending into the U-shaped structure are adjustable.
10. The alignment device according to claim 6, characterized in that: A fastening thread is provided on a peripheral side surface of the first connecting portion extending along the first direction; Two opposite side walls of the first connecting rod extending along the first direction are respectively provided with a first opening and a second opening, and the first opening and the second opening are opposite to each other.