Expansion rod suspension mechanism and tube expanding machine

Abstract

The utility model discloses an expansion rod suspension mechanism, including a frame, a cross beam for hanging the expansion rod, a movable cross beam and a locking device, wherein the movable cross beam is located below the cross beam for hanging the expansion rod, and the movable cross beam can abut against the cross beam for hanging the expansion rod and drive the cross beam for hanging the expansion rod to move in the up and down directions. The locking device is arranged on the frame and / or the cross beam for hanging the expansion rod. When the locking device unlocks the cross beam for hanging the expansion rod, the cross beam for hanging the expansion rod can abut against the movable cross beam and move downward to the operating position following the movable cross beam. When the movable cross beam pushes the cross beam for hanging the expansion rod to move upward to the initial position, the locking device can lock the relative position of the cross beam for hanging the expansion rod and the frame. Thus, the cross beam for hanging the expansion rod can move downward to a suitable operating height together with the movable cross beam, so that the operator can easily and accurately hang the unused expansion rod to the cross beam for hanging the expansion rod without climbing onto the frame. In addition, the utility model also discloses a tube expanding machine having the above-mentioned expansion rod suspension mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of tube expanders, in particular to an expansion rod suspension mechanism and a tube expander. Background Art

[0002] The tube expander is a process equipment used to expand the heat exchangers of heat exchange equipment such as air conditioners. When it is necessary to expand the tubes of heat exchangers of different specifications, due to the different numbers and inner diameters of the copper tubes of the heat exchangers, different numbers and specifications of expansion rods are required, and the unused expansion rods are removed from the working position.

[0003] At present, there are two methods to remove the unused expansion rod from the working position. One is to directly dismantle the unused expansion rod for storage, and then reinstall it when needed. This method is complicated and cumbersome, and the dismantled expansion rod needs to be placed separately, which greatly increases the workload of the staff. The other is to set a crossbeam for hanging the expansion rod on the top of the tube expander frame, pass the upper end of the expansion rod upward and lock it to the crossbeam for hanging the expansion rod, and release the locked expansion rod when it is needed, and lower the upper end of the expansion rod to the expansion rod crossbeam to lock it and enter the working position. However, this method often requires moving the expansion rod upward to the hanging hole of the crossbeam for hanging the expansion rod, but because the crossbeam for hanging the expansion rod is located at the top of the frame and the operator is located at the bottom of the frame, the operation is not convenient, and it is difficult to align the expansion rod with the hanging hole. For this reason, the operator is usually required to climb onto the frame of the tube expander to accurately hang the expansion rod on the crossbeam for hanging the expansion rod. Not only is the operation troublesome and the speed of replacing the expansion rod slow, but there is also a greater safety risk. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an expansion rod suspension mechanism, which can facilitate the suspension of unused expansion rods.

[0005] The utility model also provides a tube expander equipped with the expansion rod suspension mechanism.

[0006] The expansion rod hanging mechanism according to the embodiment of the utility model includes: a frame; a cross beam for hanging the expansion rod, which is movably installed on the frame, and the cross beam for hanging the expansion rod is used to hang the expansion rod; a movable cross beam, which is movably installed on the frame and is located below the cross beam for hanging the expansion rod, and the movable cross beam is used to lock the expansion rod and drive the expansion rod to move in the up and down direction to perform the expansion operation, and the movable cross beam can abut against the cross beam for hanging the expansion rod and drive the cross beam for hanging the expansion rod to move in the up and down direction; a locking device is provided on the frame and / or the hanging expansion rod The locking device can lock the relative position of the expansion rod crossbeam and the frame, or the locking device can unlock the expansion rod crossbeam; when the locking device unlocks the expansion rod crossbeam, the expansion rod crossbeam can abut against the movable crossbeam and follow the movable crossbeam to move downward from the initial position to the operating position; when the movable crossbeam pushes the expansion rod crossbeam to move upward from the operating position to the initial position, the locking device can lock the relative position of the expansion rod crossbeam and the frame.

[0007] The expansion rod suspension mechanism according to the embodiment of the utility model has at least the following beneficial effects:

[0008] When the operator needs to lift the gantry crane back to its original position, the gantry crane can release the movable crossbar and release it from the locking device, thereby completing the lifting of the gantry crane.

[0009] According to some embodiments of the utility model, the frame is provided with guide columns arranged in the up-down direction, the expansion rod cross beam is provided with adjustment holes corresponding to the guide columns, and the guide columns are movably inserted into the adjustment holes; the locking device is provided on the expansion rod cross beam and can lock the relative position of the expansion rod cross beam and the guide column.

[0010] According to some embodiments of the utility model, the locking device includes an adjustment plate installed on the expansion rod crossbeam and a fourth driving mechanism, and the fourth driving mechanism can drive the adjustment plate to move to block or open the adjustment hole; when the movable crossbeam pushes the expansion rod crossbeam to move upward to an initial position relative to the guide column, the horizontal height of the adjustment plate is higher than or equal to the horizontal height of the upper end of the guide column, and the fourth driving mechanism can drive the adjustment plate to move to block the adjustment hole and make the guide column abut against the adjustment plate.

[0011] According to some embodiments of the utility model, the adjustment plate is provided with a clearance hole corresponding to the adjustment hole, and the adjustment plate can move relative to the expansion rod crossbeam and make the clearance hole and the adjustment hole aligned or misaligned with each other.

[0012] According to some embodiments of the utility model, it also includes a positioning beam, which is movably installed on the frame and located below the movable beam. The positioning beam is equipped with a guide plate, and the guide plate is provided with a guide hole for inserting the expansion rod on the movable beam. The frame is provided with a second driving mechanism for driving the positioning beam to move in the up and down directions, and the guide column is fixedly installed on the positioning beam.

[0013] According to some embodiments of the utility model, the frame is provided with a first guide rail arranged in the up-down direction, the movable crossbeam has a guide frame movably mounted on the first guide rail, the expansion rod crossbeam is movably mounted on the first guide rail, and also includes a flexible pad block, the flexible pad block is provided on the guide frame and can abut against the expansion rod crossbeam, or the flexible pad block is provided on the expansion rod crossbeam and can abut against the guide frame.

[0014] According to some embodiments of the utility model, the movable crossbeam includes a main crossbeam capable of fixing the expansion rod and a tube expansion beam, the tube expansion beam is located below the crossbeam for hanging the expansion rod, and the main crossbeam is located below the tube expansion beam; the main crossbeam is movably installed on the frame, the guide frame is connected to the main crossbeam, the frame is provided with a first driving mechanism capable of driving the main crossbeam to move relative to the frame in an up and down direction, a third screw rod is fixedly installed between the main crossbeam and the guide frame, the third screw rod is threaded with a third nut, the tube expansion beam is installed on the third nut, and the tube expansion beam is also provided with a third driving mechanism transmission-connected with the third nut, the third driving mechanism can drive the third nut to rotate, and the third nut can drive the tube expansion beam to move along the third screw rod close to or away from the crossbeam for hanging the expansion rod.

[0015] According to some embodiments of the utility model, the expansion rod hanging crossbeam is provided with an expansion rod hanging template for hanging the expansion rod, and the expansion rod hanging template is provided with a plurality of hanging holes for hanging the expansion rod, and the hanging hole includes a strip through hole opened in the expansion rod hanging template and a clamping groove located on opposite sides of the strip through hole, and the clamping groove is opened on the upper surface of the expansion rod hanging template and is connected with the strip through hole, and the upper end of the expansion rod has a protrusion, and the opposite ends of the protrusion protrude outward relative to the expansion rod, and the expansion rod can drive the protrusion to pass through the strip through hole in the up and down directions, and when the expansion rod passes through the strip through hole, the expansion rod can rotate and make the protrusion abut against the bottom wall of the clamping groove.

[0016] According to some embodiments of the utility model, a hanging expansion rod locking plate is movably installed on the upper surface of the hanging expansion rod template, and the hanging expansion rod template is also installed with a fifth driving mechanism transmission connected to the hanging expansion rod locking plate, and the fifth driving mechanism can drive the hanging expansion rod locking plate to move or rotate relative to the hanging expansion rod template to cover the slot and limit the protrusion within the slot.

[0017] According to the tube expander of the embodiment of the utility model, the expansion rod suspension mechanism of any one of the above embodiments is provided.

[0018] The tube expander according to the embodiment of the utility model has at least the following beneficial effects:

[0019] By adopting the expansion rod hanging mechanism of any of the above-mentioned embodiments, when the unused expansion rod needs to be hung up, the locking device can be used to unlock the expansion rod hanging beam, so that the expansion rod hanging beam follows the movable beam to move downward to the operating position. When the expansion rod is hung, the movable beam can be used to push the expansion rod hanging beam to move upward and reset, and then the locking device can be used to lock the expansion rod hanging beam. In this process, since the expansion rod hanging beam can move downward to a suitable operating height with the movable beam, the operator does not need to climb onto the frame and can easily and accurately hang the unused expansion rod on the expansion rod hanging beam, which makes the operation easier and more convenient, and the unused expansion rods can be well stored above the movable beam.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A schematic diagram of an expansion rod suspension mechanism according to an embodiment of the utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of the expansion rod suspension mechanism of an embodiment of the utility model;

[0024] Figure 3 It is a partial cross-sectional schematic diagram of the opening of the adjustment hole of the adjustment plate of the expansion rod suspension mechanism of the embodiment of the utility model;

[0025] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0026] Figure 5 for Figure 3 Another cross-sectional schematic diagram of the middle expansion rod suspension mechanism;

[0027] Figure 6 It is a partial cross-sectional schematic diagram of the expansion rod suspension mechanism adjustment plate shielding the adjustment hole of the embodiment of the utility model;

[0028] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0029] Figure 8 for Figure 6 Another cross-sectional schematic diagram of the middle expansion rod suspension mechanism;

[0030] Fig. 9 It is a partial schematic diagram of the opening of the adjustment hole of the adjustment plate of the expansion rod cross beam of the embodiment of the utility model;

[0031] Fig.10 It is a partial schematic diagram of the adjustment plate of the expansion rod cross beam covering the adjustment hole of the embodiment of the utility model;

[0032] Fig.11 It is a schematic diagram of loosening the expansion rod of the hanging expansion rod template according to the embodiment of the utility model;

[0033] Fig.12 It is a schematic diagram of locking the expansion rod of the expansion rod hanging template of the embodiment of the utility model;

[0034] Fig.13 It is a partial schematic diagram of the hanging expansion rod template of the embodiment of the utility model;

[0035] Fig.14 It is a schematic diagram of the movable crossbeam of the utility model;

[0036] Fig.15 It is a schematic diagram of the guide beam of the utility model.

[0037] Reference numerals:

[0038] The frame 100, the guide column 110, the first guide rail 120, and the second guide rail 130;

[0039] The expansion rod cross beam 200, the adjustment hole 201, the expansion rod template 210, the adjustment plate 220, the clearance hole 221, the fourth driving mechanism 222, the connecting plate 223, the flexible pad 230, the hanging hole 240, the strip through hole 241, the card slot 242, the expansion rod locking plate 250, the locking hole 251, and the fifth driving mechanism 252;

[0040] The movable crossbeam 300, the main crossbeam 310, the first driving mechanism 311, the first screw rod 312, the first nut 313, the expansion crossbeam 320, the third driving mechanism 321, the third screw rod 322, the third nut 323, and the guide frame 330;

[0041] A positioning beam 400, a guide plate 410, a guide hole 420, a second driving mechanism 430, a second screw rod 440, and a second nut 450;

[0042] Expansion rod 500 and protrusion 510 . DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] Reference Figures 1 to 8 One embodiment of the utility model provides an expansion rod suspension mechanism, including a frame 100, a cross beam 200 for hanging the expansion rod, a movable cross beam 300 and a locking device, wherein the cross beam 200 for hanging the expansion rod is movably installed on the frame 100, and the cross beam 200 for hanging the expansion rod is used to hang the expansion rod 500. The movable cross beam 300 is movably installed on the frame 100 and is located below the cross beam 200 for hanging the expansion rod. The movable cross beam 300 is used to lock the expansion rod 500 and drive the expansion rod 500 to move in the up and down direction to perform the expansion operation, and the movable cross beam 300 can abut against the cross beam 200 for hanging the expansion rod and drive the cross beam 200 for hanging the expansion rod to move in the up and down direction. The locking device is provided on the frame 100 and / or the cross beam 200 for hanging the expansion rod, and the locking device can lock the relative position of the cross beam 200 for hanging the expansion rod and the frame 100, or the locking device can unlock the cross beam 200 for hanging the expansion rod. When the locking device unlocks the expansion rod cross beam 200, the expansion rod cross beam 200 can abut against the movable cross beam 300 and move downward from the initial position to the operating position with the movable cross beam 300. When the movable cross beam 300 pushes the expansion rod cross beam 200 to move upward from the operating position to the initial position, the locking device can lock the relative position between the expansion rod cross beam 200 and the frame 100.

[0048] In the above structure, when it is necessary to hang the unused expansion rod 500, the movable crossbeam 300 can be moved upward to abut against the expansion rod hanging crossbeam 200, and the expansion rod hanging crossbeam 200 can be unlocked by the locking device. At this time, the movable crossbeam 300 is moved downward, and the expansion rod hanging crossbeam 200 can move downward with the movable crossbeam 300. When the expansion rod hanging crossbeam 200 is lowered to the operating position, that is, the expansion rod hanging crossbeam 200 is lowered to a suitable operating height, the operator can easily loosen the unused expansion rod 500 from the movable crossbeam 300 and hang it upward on the expansion rod hanging crossbeam 200, and can easily remove the expansion rod 500 that needs to be used from the expansion rod hanging crossbeam 200 and fix it on the movable crossbeam 300. After completion, the movable crossbeam 300 is used to push the expansion rod hanging crossbeam 200 to move upward and reset. After the expansion rod hanging crossbeam 200 moves to the initial position, the locking device is used to lock the expansion rod hanging crossbeam 200 and fix the expansion rod hanging crossbeam 200 to the frame 100. In this way, the expansion rod 500 hanging operation is completed. In the above-mentioned expansion rod 500 hanging process, since the expansion rod hanging crossbeam 200 can move downward to a suitable operating height with the movable crossbeam 300, the operator does not need to climb onto the frame 100 and can easily and accurately hang the unused expansion rod 500 to the expansion rod hanging crossbeam 200. The operation is easier and more convenient, and the unused expansion rod 500 can be well stored above the movable crossbeam 300.

[0049] In addition, in the process of loosening the unused expansion rod 500 from the movable crossbeam 300 and hanging it upward on the expansion rod hanging crossbeam 200, since the expansion rod hanging crossbeam 200 is abutted against the movable crossbeam 300, the distance between the holes on the expansion rod hanging crossbeam 200 and the holes on the movable crossbeam 300 is small, which makes it easy to align the expansion rod 500 with the holes on the expansion rod hanging crossbeam 200, so that the expansion rod 500 can be accurately hung on the expansion rod hanging crossbeam 200, further making the hanging operation of the expansion rod 500 simpler and more convenient.

[0050] Reference Figures 1 to 10 In some embodiments, the frame 100 is provided with guide columns 110 arranged in the up-down direction, the expansion rod cross beam 200 is provided with adjustment holes 201 corresponding to the guide columns 110, and the guide columns 110 are movably inserted into the adjustment holes 201; the locking device is provided on the expansion rod cross beam 200 and can lock the relative positions of the expansion rod cross beam 200 and the guide columns 110.

[0051] In the above structure, by setting the guide column 110, the expansion rod cross beam 200 is movably mounted on the guide column 110, so that the locking device can lock the expansion rod cross beam 200 on the guide column 110, thereby fixing the expansion rod cross beam 200 to the frame 100, and when the locking device unlocks the expansion rod cross beam 200, the expansion rod cross beam 200 can also move up and down along the guide column 110, that is, the guide column 110 can not only cooperate with the locking device to lock the position of the expansion rod cross beam 200, but also play a guiding role in the lifting and lowering of the expansion rod cross beam 200, so that the lifting and lowering of the expansion rod cross beam 200 is more stable.

[0052] Reference Figures 1 to 10 In some embodiments, the locking device includes an adjustment plate 220 and a fourth driving mechanism 222 installed on the expansion rod hanging beam 200. The fourth driving mechanism 222 can drive the adjustment plate 220 to move to block or open the adjustment hole 201; when the movable beam 300 pushes the expansion rod hanging beam 200 to move upward to the initial position relative to the guide column 110, the horizontal height of the adjustment plate 220 is higher than or equal to the horizontal height of the upper end of the guide column 110, and the fourth driving mechanism 222 can drive the adjustment plate 220 to move to block the adjustment hole 201, and make the guide column 110 abut against the adjustment plate 220.

[0053] In the above structure, when it is necessary to hang up the unused expansion rod 500, the fourth driving mechanism 222 can be used to drive the adjustment plate 220 to open the adjustment hole 201, and the movable crossbeam 300 can be moved upward to abut against the expansion rod hanging crossbeam 200. At this time, the guide column 110 can pass through the adjustment hole 201, and the expansion rod hanging crossbeam 200 can move downward with the movable crossbeam 300. When the expansion rod hanging crossbeam 200 drops to the operating height, that is, the expansion rod hanging crossbeam 200 drops to a suitable operating height, the operator can easily loosen the unused expansion rod 500 from the movable crossbeam 300 and hang it upward to the expansion rod hanging crossbeam. The expansion rod 500 that needs to be used can be easily removed from the expansion rod hanging beam 200 and fixed on the movable beam 300. After the operation is completed, the expansion rod hanging beam 200 is pushed to move upward and reset through the movable beam 300, and the horizontal height of the adjustment plate 220 is made higher than or equal to the horizontal height of the upper end of the guide column 110. At this time, the fourth driving mechanism 222 drives the adjustment plate 220 to cover the adjustment hole 201, so that the guide column 110 can be abutted against the adjustment plate 220, thereby the expansion rod hanging beam 200 can be fixed to the frame 100 and cannot move downward with the movable beam 300. In the above-mentioned process of hanging the expansion rod 500, since the expansion rod hanging beam 200 can move downward to a suitable height along with the movable beam 300, the operator does not need to climb onto the frame 100 and can accurately hang the unused expansion rod 500 on the expansion rod hanging beam 200, which makes the operation easier and more convenient, and the unused expansion rod 500 can be stored more flexibly above the movable beam 300.

[0054] It is understandable that the fourth driving mechanism 222 may specifically be a linear driving mechanism such as a cylinder, a push rod motor, a hydraulic cylinder, etc., and the present invention does not make any specific limitation on this.

[0055] It is understandable that, referring to Fig. 9 and Fig.10 In some embodiments, in order to facilitate the movement of the adjustment plate 220, a connecting plate 223 is further provided between the adjustment plate 220 and the fourth driving mechanism 222. One end of the connecting plate 223 is connected to the adjustment plate 220, and the other end extends to connect to the output end of the fourth driving mechanism 222, so that the adjustment plate 220 can be driven to move through the connecting plate 223. In addition, in this structure, by providing the connecting plate 223, the fourth driving mechanism 222 can be installed on one side of the adjustment plate 220, thereby facilitating the installation layout of the fourth driving mechanism 222.

[0056] Reference Figures 1 to 10 In some embodiments, the adjustment plate 220 is provided with a clearance hole 221 corresponding to the adjustment hole 201, and the adjustment plate 220 can move relative to the expansion rod cross beam 200 and make the clearance hole 221 and the adjustment hole 201 aligned or misaligned with each other.

[0057] In the above structure, by opening the clearance hole 221 on the adjustment plate 220, when the fourth driving mechanism 222 drives the adjustment plate 220 to move to the clearance hole 221 and the adjustment hole 201 are aligned with each other, the expansion rod cross beam 200 is in an unlocked state, and the guide column 110 can pass through the adjustment hole 201 and the clearance hole 221, so that the expansion rod cross beam 200 can follow the movable cross beam 300 to move downward to the operating position. When the movable cross beam 300 pushes the expansion rod cross beam 200 to move upward from the operating position to the initial position, the fourth driving mechanism 222 can drive the adjustment plate 220 to move to the clearance hole 221 and the adjustment hole 201 are misaligned, so that the guide column 110 cannot pass through the clearance hole 221 and abuts against the adjustment plate 220, thereby fixing the expansion rod cross beam 200 to the frame 100 and cannot follow the movable cross beam 300 to move downward.

[0058] It is understandable that, referring to Figures 1 to 10 In order to make the lifting and lowering of the expansion rod cross beam 200 more balanced and stable, the number of guide columns 110 is set to four, and the four guide columns 110 are correspondingly located at the four top corners of the expansion rod cross beam 200. The expansion rod cross beam 200 is provided with adjustment holes 201 corresponding to each guide column 110, and the guide column 110 is movably arranged in the corresponding adjustment hole 201. The number of adjustment plates 220 is two, and the two adjustment plates 220 are correspondingly arranged at the two ends opposite to the expansion rod cross beam 200. Each adjustment plate 220 is provided with two clearance holes 221. The fourth driving device can drive the adjustment plate 220 to move and make the two clearance holes 221 and the corresponding two adjustment holes 201 aligned or misaligned with each other, thereby realizing the unlocking or locking of the expansion rod cross beam 200. It can be understood that the number of adjustment plates 220 can be one, three or four in addition to two, and there is no specific limitation on this, as long as it can cover or open the four adjustment holes 201.

[0059] It is understandable that in the above structure, in addition to the structure of the adjustment plate 220, the locking device can also adopt a latch structure, and the guide column 110 is provided with a latch hole. When the latch moves out of the latch hole, the expansion rod cross beam 200 can move downward with the movable cross beam 300. When the movable cross beam 300 pushes the expansion rod cross beam 200 to move upward to the initial position, the horizontal height of the latch hole is lower than the horizontal height of the expansion rod cross beam 200. At this time, the latch is inserted into the latch hole, and the two ends of the latch can abut against the lower edge of the adjustment hole 201, thereby preventing the expansion rod cross beam 200 from being fixed to the frame 100 and preventing the expansion rod cross beam 200 from moving downward with the movable cross beam 300.

[0060] Reference Figures 1 to 10 as well as Fig.15In some embodiments, the expansion rod suspension mechanism also includes a positioning beam 400, which is movably mounted on the frame 100 and located below the movable beam 300. The positioning beam 400 is equipped with a guide plate 410. The guide plate 410 is provided with a guide hole 420 for inserting the expansion rod 500 on the movable beam 300. The frame 100 is provided with a second driving mechanism 430 for driving the positioning beam 400 to move in the up and down directions. The guide column 110 is fixedly mounted on the positioning beam 400.

[0061] In the above structure, by fixing the guide column 110 on the positioning beam 400, when the expansion rod beam 200 moves to the initial position, the guide column 110 can be driven by the positioning beam 400 to move in the up and down directions, and the position of the guide column 110 can be fine-tuned so that the horizontal height of the guide column 110 is lower than or equal to the horizontal height of the adjustment plate 220, thereby preventing the horizontal height of the adjustment plate 220 from being lower than the horizontal height of the upper end of the guide column 110 when the expansion rod beam 200 moves to the initial position due to the upper end of the guide column 110 being too high or the upper end of the guide column 110 being too close to the upper end of the frame 100, thereby enabling the expansion rod beam 200 to be unlocked and locked more flexibly.

[0062] It can be understood that, in some embodiments, a positioning hole corresponding to the guide column 110 is opened on the top of the frame 100. When the locking device unlocks the expansion rod crossbeam 200, the second driving mechanism 430 can drive the guide column 110 to move upward to the positioning hole through the positioning crossbeam 400, thereby making the installation of the guide column 110 more stable, and thus being able to better guide the lifting and lowering of the expansion rod crossbeam 200, avoiding the shaking of the expansion rod crossbeam 200 during lifting and lowering, and making the lifting and lowering of the expansion rod crossbeam 200 more balanced and stable.

[0063] It can be understood that the second driving mechanism 430 can drive the positioning beam 400 to move in the up and down directions. Figures 1 to 10 as well as Fig.15 In some embodiments, the frame 100 is provided with a second screw rod 440 arranged in the up-down direction, the second driving mechanism 430 is transmission-connected with the second screw rod 440 and can drive the second screw rod 440 to rotate, the second screw rod 440 is threaded with a second nut 450, the frame 100 is provided with a second guide rail 130 arranged in the up-down direction, the second nut 450 is connected to the positioning beam 400 and movably mounted on the second guide rail 130, thereby, the second driving mechanism 430 drives the second screw rod 440 to rotate, and the second nut 450 can be driven and the positioning beam 400 can be driven to move in the up-down direction. Among them, the second driving mechanism 430 can be selected from a motor, a rotary cylinder or a rotary hydraulic cylinder, etc., which is not specifically limited by the present utility model.

[0064] Reference Figures 1 to 14 In some embodiments, the frame 100 is provided with a first guide rail 120 arranged in the up-down direction, the movable crossbeam 300 has a guide frame 330 movably mounted on the first guide rail 120, the expansion rod crossbeam 200 is movably mounted on the first guide rail 120, and also includes a flexible pad 230, the flexible pad 230 is provided on the guide frame 330 and can abut against the expansion rod crossbeam 200, or the flexible pad 230 is provided on the expansion rod crossbeam 200 and can abut against the guide frame 330.

[0065] In the above structure, by setting the first guide rail 120, the expansion rod beam 200 is movably installed on the first guide rail 120, thereby further improving the lifting stability of the expansion rod beam 200. By setting the guide frame 330, the lifting stability of the movable beam 300 can be improved. By setting the flexible pad 230, the expansion rod beam 200 and the movable beam 300 can abut against each other through the flexible pad 230, so that the expansion rod beam 200 can move up and down with the movable beam 300, and the flexible pad 230 can protect the expansion rod beam 200 and the movable beam 300 to avoid damage due to rigid abutment and rigid collision when the two abut.

[0066] It is understandable that the flexible pad 230 may be a polyurethane pad, a silicone pad, etc., and the present invention does not make any specific limitation on this.

[0067] Reference Figures 1 to 14 In some embodiments, the movable crossbeam 300 includes a main crossbeam 310 and a tube expansion crossbeam 320 capable of fixing the expansion rod 500, the tube expansion crossbeam 320 is located below the crossbeam 200 for hanging the expansion rod, and the main crossbeam 310 is located below the tube expansion crossbeam 320. The main crossbeam 310 is movably mounted on the frame 100, the guide frame 330 is connected to the main crossbeam 310, and the frame 100 is provided with a first driving mechanism 311 capable of driving the main crossbeam 310 to move relative to the frame 100 in the up and down direction. A third screw rod 322 is fixedly installed between the main beam 310 and the guide frame 330. The third screw rod 322 is threaded with a third nut 323. The expansion beam 320 is installed on the third nut 323. The expansion beam 320 is also provided with a third driving mechanism 321 which is transmission-connected with the third nut 323. The third driving mechanism 321 can drive the third nut 323 to rotate. The third nut 323 can drive the expansion beam 320 to move along the third screw rod 322 to approach or move away from the expansion rod hanging beam 200.

[0068] In the above structure, both the main cross beam 310 and the expansion cross beam 320 can lock the expansion rod 500 and perform the expansion operation. The different heights of the two can achieve high and low expansion functions. By arranging a third screw rod 322 on the main beam 310, the expansion beam 320 is installed on the third screw rod 322 through the third nut 323, and the third driving mechanism 321 is connected to the third nut 323 and drives the third nut 323 to rotate, so that the third nut 323 can drive the expansion beam 320 to move along the third screw rod 322 close to or away from the expansion rod hanging beam 200. This structure can not only adjust the specific height of the expansion rod 500 on the expansion beam 320, but also adjust the distance between the expansion beam 320 and the expansion rod hanging beam 200, so that the operator can loosen the unused expansion rod 500 on the expansion beam 320 and move it upward to align with the hole position of the expansion rod hanging beam 200, so that the unused expansion rod 500 can be more conveniently hung on the expansion rod hanging beam 200.

[0069] It can be understood that the first driving mechanism 311 can drive the main beam 310 to move in the up-down direction relative to the frame 100. Specifically, the frame 100 is provided with a first screw rod 312, and a first nut 313 is screwed on the first screw rod 312. The first nut 313 is installed on the movable beam 300. The first driving mechanism 311 is connected to the first screw rod 312 in a transmission manner and can drive the first screw rod 312 to rotate, so that the first nut 313 moves up and down along the first screw rod 312, thereby driving the movable beam 300 to move in the up-down direction. Among them, the first driving mechanism 311 can be specifically selected from a motor, a rotary cylinder or a rotary hydraulic cylinder, etc., and the utility model does not make specific limitations on this.

[0070] Reference Figures 1 to 12 In some embodiments, the expansion rod hanging crossbeam 200 is provided with an expansion rod hanging template 210 for hanging the expansion rod 500, and the expansion rod hanging template 210 is provided with a plurality of hanging holes 240 for hanging the expansion rod 500, and the hanging hole 240 includes a strip through hole 241 opened in the expansion rod hanging template 210 and a card slot 242 located on opposite sides of the strip through hole 241, and the card slot 242 is opened on the upper surface of the expansion rod hanging template 210 and is connected with the strip through hole 241, and the upper end of the expansion rod 500 has a protrusion 510, and the opposite ends of the protrusion 510 protrude outward relative to the expansion rod 500, and the expansion rod 500 can drive the protrusion 510 to pass through the strip through hole 241 along the up and down directions. When the expansion rod 500 passes through the strip through hole 241, the expansion rod 500 can rotate and make the protrusion 510 abut against the bottom wall of the card slot 242.

[0071] In the above structure, when the unused expansion rod 500 needs to be hung on the expansion rod hanging beam 200, the expansion rod 500 is passed through the bar-shaped through hole 241 from bottom to top, and then the expansion rod 500 is rotated so that the protrusion 510 is rotated relative to the two ends protruding outwards of the expansion rod 500 to the top of the slot 242, thereby making the protrusion 510 abut against the bottom wall of the slot 242, thereby achieving the hanging of the expansion rod 500. When the expansion rod 500 on the expansion rod hanging beam 200 needs to be used, the expansion rod 500 can be moved upward, and then the expansion rod 500 is rotated so that the protrusion 510 is rotated relative to the two ends protruding outwards of the expansion rod 500 to the top of the bar-shaped through hole 241, thereby the expansion rod 500 can be moved downward out of the bar-shaped through hole 241.

[0072] It can be understood that the above-mentioned hanging hole 240 includes a strip-shaped through hole 241 opened on the expansion rod hanging template 210 and a slot 242 located on the opposite sides of the strip-shaped through hole 241. Specifically, in some embodiments, the opposite side walls of the slot 242 can limit the rotation of the protrusion 510. Thus, when the protrusion 510 abuts against the bottom wall of the slot 242, the protrusion 510 can be confined in the slot 242, thereby achieving fixation of the expansion rod 500 and preventing the expansion rod 500 from falling off from the hanging hole 240 due to accidental rotation.

[0073] Reference Figures 1 to 12 In some embodiments, a hanging expansion rod locking plate 250 is movably mounted on the upper surface of the hanging expansion rod template 210, and the hanging expansion rod template 210 is also equipped with a fifth driving mechanism 252 which is transmission-connected to the hanging expansion rod locking plate 250. The fifth driving mechanism 252 can drive the hanging expansion rod locking plate 250 to move relative to the hanging expansion rod template 210 to the blocking slot 242, and restrict the protrusion 510 within the slot 242.

[0074] In the above structure, by providing the expansion rod locking plate 250 , the expansion rod 500 on the expansion rod template 210 can be further locked and limited, so that the unused expansion rod 500 can be better fixed to the expansion rod template 210 .

[0075] It is understandable that the fifth driving mechanism 252 can drive the expansion rod locking plate 250 to move relative to the expansion rod template 210 to the blocking slot 242 and restrict the protrusion 510 in the slot 242. Figures 1 to 12 An exemplary description is given. In some embodiments, the expansion rod locking plate 250 can also be rotatably installed on the expansion rod template 210. The fifth driving mechanism 252 can drive the expansion rod locking plate 250 to flip up and down relative to the expansion rod template 210. When the expansion rod locking plate 250 flips upward to a vertical state, the hanging hole 240 is opened. When the expansion rod locking plate 250 flips downward to a horizontal state, the slot 242 can be blocked, thereby restricting the protrusion 510 within the slot 242.

[0076] Reference Figures 1 to 12 In some embodiments, the expansion rod locking plate 250 is provided with locking holes 251 corresponding to the long strip holes one by one, and the locking holes 251 can allow the protrusion 510 of the expansion rod 500 to pass through. The fifth driving mechanism 252 can drive the expansion rod locking plate 250 to move horizontally relative to the expansion rod template 210, so that the locking hole 251 is aligned or staggered with the corresponding hanging hole 240; when the locking hole 251 is aligned with the corresponding hanging hole 240, the protrusion 510 can move in the up and down direction and pass through the hanging hole 240; when the locking hole 251 is staggered with the corresponding hanging hole 240, the expansion rod locking plate 250 can limit the protrusion 510 in the slot 242.

[0077] An embodiment of the utility model further provides a tube expander, which is provided with the expansion rod suspension mechanism of any of the above embodiments.

[0078] In the above structure, by adopting the expansion rod hanging mechanism of any of the above embodiments, when the unused expansion rod 500 needs to be hung up, the expansion rod hanging beam 200 can be unlocked by the locking device, so that the expansion rod hanging beam 200 moves downward with the movable beam 300 to the operating position. When the expansion rod 500 is hung, the expansion rod hanging beam 200 can be pushed to move upward and reset by the movable beam 300, and then the expansion rod hanging beam 200 is locked by the locking device. In this process, since the expansion rod hanging beam 200 can move downward with the movable beam 300 to a suitable operating height, the operator does not need to climb onto the frame 100 and can easily and accurately hang the unused expansion rod 500 to the expansion rod hanging beam 200, which makes the operation easier and more convenient, and the unused expansion rod 500 can be well stored above the movable beam 300.

[0079] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The expansion rod suspension mechanism is characterized by: include: Rack(100); A cross beam (200) for hanging an expansion rod, movably mounted on the frame (100), the cross beam (200) for hanging an expansion rod being used to hang the expansion rod (500); a movable crossbeam (300) movably mounted on the frame (100) and located below the expansion rod hanging crossbeam (200); the movable crossbeam (300) is used to lock the expansion rod (500) and drive the expansion rod (500) to move in the up-down direction to perform a tube expansion operation; the movable crossbeam (300) can abut against the expansion rod hanging crossbeam (200) and drive the expansion rod hanging crossbeam (200) to move in the up-down direction; a locking device, provided on the frame (100) and / or the expansion rod hanging cross beam (200), the locking device being capable of locking the relative position of the expansion rod hanging cross beam (200) and the frame (100), or the locking device being capable of unlocking the expansion rod hanging cross beam (200); When the locking device unlocks the expansion rod crossbeam (200), the expansion rod crossbeam (200) can abut against the movable crossbeam (300) and move downward from an initial position to an operating position following the movable crossbeam (300); When the movable crossbeam (300) pushes the expansion rod hanging crossbeam (200) to move upward from the operating position to the initial position, the locking device can lock the relative position of the expansion rod hanging crossbeam (200) and the frame (100).

2. The expansion rod suspension mechanism according to claim 1, characterized in that: The frame (100) is provided with guide columns (110) arranged in the up-down direction, the expansion rod suspension crossbeam (200) is provided with adjustment holes (201) corresponding to the guide columns (110), and the guide columns (110) are movably inserted into the adjustment holes (201); The locking device is arranged on the expansion rod cross beam (200) and is capable of locking the relative position of the expansion rod cross beam (200) and the guide column (110).

3. The expansion rod suspension mechanism according to claim 2, characterized in that: The locking device comprises an adjustment plate (220) mounted on the expansion rod suspension crossbeam (200) and a fourth drive mechanism (222), wherein the fourth drive mechanism (222) is capable of driving the adjustment plate (220) to move to cover or open the adjustment hole (201); When the movable crossbeam (300) pushes the expansion rod crossbeam (200) to move upward to an initial position relative to the guide column (110), the horizontal height of the adjustment plate (220) is higher than or equal to the horizontal height of the upper end of the guide column (110), and the fourth driving mechanism (222) can drive the adjustment plate (220) to move to cover the adjustment hole (201), and make the guide column (110) abut against the adjustment plate (220).

4. The expansion rod suspension mechanism according to claim 3, characterized in that: The adjustment plate (220) is provided with a clearance hole (221) corresponding to the adjustment hole (201); the adjustment plate (220) can move relative to the expansion rod hanging crossbeam (200) and make the clearance hole (221) and the adjustment hole (201) mutually aligned or misaligned.

5. The expansion rod suspension mechanism according to claim 3, characterized in that: The invention also comprises a positioning beam (400) which is movably mounted on the frame (100) and is located below the movable beam (300); the positioning beam (400) is provided with a guide plate (410); the guide plate (410) is provided with a guide hole (420) for inserting an expansion rod (500) on the movable beam (300); the frame (100) is provided with a second driving mechanism (430) for driving the positioning beam (400) to move in an up-and-down direction; and the guide column (110) is fixedly mounted on the positioning beam (400).

6. The expansion rod suspension mechanism according to claim 1, characterized in that: The frame (100) is provided with a first guide rail (120) arranged in an up-down direction, the movable crossbeam (300) has a guide frame (330) movably mounted on the first guide rail (120), and the expansion rod hanging crossbeam (200) is movably mounted on the first guide rail (120). It also includes a flexible pad (230), which is arranged on the guide frame (330) and can abut against the expansion rod cross beam (200), or the flexible pad (230) is arranged on the expansion rod cross beam (200) and can abut against the guide frame (330).

7. The expansion rod suspension mechanism according to claim 6, characterized in that: The movable crossbeam (300) comprises a main crossbeam (310) capable of fixing the expansion rod (500) and a tube expansion crossbeam (320), wherein the tube expansion crossbeam (320) is located below the expansion rod hanging crossbeam (200), and the main crossbeam (310) is located below the tube expansion crossbeam (320); The main crossbeam (310) is movably mounted on the frame (100), the guide frame (330) is connected to the main crossbeam (310), and the frame (100) is provided with a first driving mechanism (311) capable of driving the main crossbeam (310) to move in an up-down direction relative to the frame (100). A third screw rod (322) is fixedly installed between the main cross beam (310) and the guide frame (330), and the third screw rod (322) is threaded with a third nut (323). The expansion beam (320) is installed on the third nut (323). The expansion beam (320) is also provided with a third driving mechanism (321) which is transmission-connected to the third nut (323). The third driving mechanism (321) can drive the third nut (323) to rotate, and the third nut (323) can drive the expansion beam (320) to move along the third screw rod (322) to approach or move away from the expansion rod hanging beam (200).

8. The expansion rod suspension mechanism according to claim 1, characterized in that: The expansion rod hanging crossbeam (200) is provided with an expansion rod hanging template (210) for hanging the expansion rod (500), and the expansion rod hanging template (210) is provided with a plurality of hanging holes (240) for hanging the expansion rod (500). The hanging hole (240) comprises a strip-shaped through hole (241) formed on the expansion rod hanging template (210) and a clamping groove (242) located on two opposite sides of the strip-shaped through hole (241); the clamping groove (242) is formed on the upper surface of the expansion rod hanging template (210) and is connected to the strip-shaped through hole (241). The upper end of the expansion rod (500) has a protrusion (510), and opposite ends of the protrusion (510) protrude outward relative to the expansion rod (500). The expansion rod (500) can drive the protrusion (510) to pass through the strip-shaped through hole (241) in the up-down direction. When the expansion rod (500) passes through the strip-shaped through hole (241), the expansion rod (500) can rotate and enable the protrusion (510) to abut against the bottom wall of the slot (242).

9. The expansion rod suspension mechanism according to claim 8, characterized in that: The upper surface of the expansion rod template (210) is also movably mounted with an expansion rod locking plate (250), and the expansion rod template (210) is also mounted with a fifth driving mechanism (252) which is transmission-connected to the expansion rod locking plate (250). The fifth driving mechanism (252) can drive the expansion rod locking plate (250) to move or rotate relative to the expansion rod template (210) to cover the slot (242) and restrict the protrusion (510) within the slot (242).

10. A tube expander, characterized in that: An expansion rod suspension mechanism as claimed in any one of claims 1 to 9 is provided.

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