Bidirectional measurement equipment for large rotation stroke of movable arm

Abstract

A bidirectional measuring device for a large rotation stroke of a movable arm is characterized in that a vertical notch is formed in the side end of a base, the vertical notch is located on a rotation path of the movable arm, a vertical partition plate is further arranged in the base, the movable arm is rotatably connected with the vertical partition plate, a convex hanging hole II is formed in the side end, close to the vertical notch, of the movable arm, and the hanging hole II is located in the vertical partition plate. A hanging hole I is formed in the bottom of the vertical partition plate, and the double-end tension spring is vertically hooked between the hanging hole II and the hanging hole I, so that the hanging hole II can rotate into the same vertical plane with the hanging hole I along with the movable arm. Further, the movable arm and the transmission gear are driven to move to the outside of the base to the greatest extent, and the transmission gear is enabled to abut against and be meshed with a lifting screw rod or a driving gear of the gate hoist, so that the distance between the transmission gear and the lifting screw rod or the driving gear of the gate hoist is compensated, and the transmission gear can have a relatively large rotating stroke; the distance between the transmission gear and the lifting screw or the driving gear does not need to be changed by adjusting the position of the base.

Description

Technical Field

[0001] The utility model relates to the technical field of distance measurement, in particular to a bidirectional measuring device with a movable arm and a large rotation stroke. Background Art

[0002] The gate hoist, also known as the gate hoist, is a large-scale hydraulic machinery product. The gate hoist is related to the normal operation of hydraulic structures. In addition to meeting the design requirements of general lifting machinery, it is of special significance to have safe and reliable work and flexible and convenient operation.

[0003] Patent publication number CN118243039B discloses a bidirectional measuring device and a gate hoist with the bidirectional measuring device, which can realize both gate position measurement and stroke measurement. However, the following problems still exist during the assembly process:

[0004] When the lifting screw or driving gear of the gate opening and closing machine is connected through the transmission gear, the transmission gear is limited by the structure of the base and the installation position of the double-headed tension spring. Only a small part of it can be rotated out of the base, and its rotation stroke is very limited. This causes the transmission gear to be unable to engage with the lifting screw or driving gear of part of the gate opening and closing machine due to excessive spacing. However, if the spacing between the transmission gear and the lifting screw or driving gear is adjusted by adjusting the position of the base, the threaded fixing holes on the base and the bracket structure will be misaligned, making it impossible to fix the base on the bracket structure.

[0005] In view of this, the problem to be solved by the present invention is to provide a bidirectional measuring device with a movable arm and a large rotation stroke. Utility Model Content

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A bidirectional measuring device with a large rotation stroke of a movable arm, wherein a vertical notch is constructed on the side end of the base, the vertical notch is located on the rotation path of the movable arm, a vertical partition plate is also constructed in the base, the movable arm is rotatably connected to the vertical partition plate, an outwardly protruding hanging hole II is constructed on the side end of the movable arm adjacent to the vertical notch, a hanging hole I is constructed at the bottom of the vertical partition plate, a double-headed tension spring vertical hook is hung between hanging hole II and hanging hole I, so that hanging hole II can rotate with the movable arm to the same vertical plane as hanging hole I.

[0008] The height of the side ends of the vertical partition plates decreases gradually in a direction approaching the vertical notch until it is flush with the bottom of the vertical notch.

[0009] The side end surface of the vertical partition plate is an arc-shaped slope structure.

[0010] The fastening bolt II passes through the tail of the movable arm and is threadedly connected to the vertical partition plate.

[0011] A strip-shaped waist groove is opened on the horizontal direction of the movable arm, and the adjusting bolt passes through the waist groove and is threadedly connected with the vertical partition plate.

[0012] The advantages and positive effects of the utility model are:

[0013] A vertical notch is constructed on the side end of the base, so that the moving stroke of the transmission gear on the movable arm is not restricted by the base. The double-headed tension spring vertical hook is hung between the hanging hole II and the hanging hole I to drive the movable arm and the transmission gear to move to the outside of the base to the maximum extent and make the transmission gear tightly against the lifting screw or driving gear of the gate opening and closing machine; thereby making up for the distance between the transmission gear and the lifting screw or driving gear of the gate opening and closing machine, so that the transmission gear can have a larger rotation stroke, and there is no need to change the distance between the transmission gear and the lifting screw or driving gear by adjusting the position of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached figure:

[0016] Figure 1 This is a structural diagram of a bidirectional measuring device with a large rotation stroke of a movable arm in the utility model from a first viewing angle;

[0017] Figure 2 This is a structural diagram of a bidirectional measuring device with a large rotation range of a movable arm according to the utility model from a second viewing angle;

[0018] Figure 3 It is a structural diagram of the connecting frame;

[0019] Figure 4 This is a structural diagram of a bidirectional measuring device with a large rotating stroke of a movable arm installed on a gate hoist;

[0020] In the figure: base 4, vertical notch 41, vertical partition plate 42, hanging hole I43, hanging hole II44, fastening bolt II45, adjusting bolt 46, waist groove 47, transmission gear 48, movable arm 49, connecting frame 8, bracket part 81, horizontal plate part 82, fastening bolt I83, gap 84, connecting through groove 85, double-headed tension spring 9. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 2 As shown, the utility model provides: a bidirectional measuring device with a large rotation stroke of a movable arm, a vertical notch 41 is constructed on the side end of the base 4, and the vertical notch 41 is located on the rotation path of the movable arm 49 toward the lifting screw or driving gear of the gate hoist, thereby making the movement stroke of the transmission gear 48 on the movable arm 49 not restricted by the base 4, so that most of the transmission gear 48 can be moved to the outside of the base 4, thereby compensating for the gap between the lifting screw or driving gear of the gate hoist;

[0023] A vertical partition plate 42 is also constructed in the base 4, and a movable arm 49 is rotatably connected to the vertical partition plate 42. A convex hanging hole II44 is constructed on the side end of the movable arm 49 adjacent to the vertical notch 41, and a hanging hole I43 is constructed at the bottom of the vertical partition plate 42. The double-headed tension spring 9 is vertically hooked and hung between the hanging hole II44 and the hanging hole I43. The hanging hole II44 and the hanging hole I43 are in the same vertical plane to drive the movable arm 49 and the transmission gear 48 to move to the outside of the base 4 to the maximum extent and make the transmission gear 48 tightly contact the lifting screw or driving gear of the gate opening and closing mechanism;

[0024] It should be noted that the hanging hole II44 and the hanging hole I43 are in the same vertical plane, which is only one state in this embodiment, but not limited to this state. The purpose is to use the double-headed tension spring 9 to drive the movable arm 49 to drive the transmission gear 48 to move to the outside of the base 4 to the maximum extent.

[0025] Specifically, the side end height of the vertical partition plate 42 decreases gradually in the direction approaching the vertical notch 41 until it is flush with the bottom of the vertical notch 41, that is, the side end surface of the vertical partition plate 42 is an arc-shaped slope structure, thereby providing installation space for the double-headed tension spring 9, so that the double-headed tension spring 9 will not be affected by external force during the stretching or contraction process.

[0026] Specifically, the fastening bolt II45 passes through the tail of the movable arm 49 and is threadedly connected to the vertical partition plate 42. A gap is left between the movable arm 49 and the base 4 so that the movable arm 49 will not separate from the base 4 and can rotate relative to the base 4; a strip-shaped waist groove 47 is opened on the horizontal side of the movable arm 49, and the adjusting bolt 46 passes through the waist groove 47 and is threadedly connected to the vertical partition plate 42, which is used to limit the maximum rotation stroke of the movable arm 3.

[0027] Specifically, the encoder 9 of the bidirectional measuring device is fixedly mounted on the movable arm 49 , and the output end of the encoder 9 passes through the movable arm 49 and is connected to the transmission gear 48 .

[0028] like Figures 2 to 4 As shown, further, considering that the existing bidirectional measuring equipment needs to be installed by drilling holes on the gate hoist support gantry and then connected by bolts, on the one hand, the drilling method is time-consuming and labor-intensive, increasing the workload of workers, and on the other hand, it also reduces the structural strength of the gate hoist support gantry;

[0029] Therefore, in this technical solution, a connecting frame 8 for punch-free installation is also proposed, which includes an N-shaped bracket portion 81 and a horizontal plate portion 82 constructed below the bracket portion 81. A connecting groove 85 is provided on the top of the bracket portion 81, and a threaded groove corresponding to the fastening bolt I83 is provided on the outer bottom surface of the base 4. The threaded portion of the fastening bolt I83 passes through the connecting groove 85 and connects with the threaded groove on the base 4, thereby achieving a fixed connection with the base 4. Two groups of the horizontal plate portions 82 extend along the inner side of the bracket portion 81, and a gap 84 is left between the two groups of the horizontal plate portions 82;

[0030] The fastening bolt I83 is a fastener used in the prior art to fix the cover plate of the gate opening and closing machine. It is an inherent structure on the gate opening and closing machine. When the connecting frame 8 needs to be connected to the gate opening and closing machine, first reversely screw one of the fastening bolts I83 on the cover plate so that the stud portion of the fastening bolt I83 is exposed on the outside of the cover plate, and then through the gap 84 between the two groups of the transverse plate portions 82 on the connecting frame 8, in the radial direction of the stud portion of the fastening bolt I83, the connecting frame 8 is inserted into the stud portion, and then the wrench is inserted into the inner side of the connecting frame 8, and the fastening bolt I83 is screwed forward so that the stud portion of the fastening bolt I83 gradually enters the cover plate, and then the nut of the fastening bolt I83 moves in the direction close to the transverse plate portion 82 until it is tightly against the transverse plate portion 82 near the gap 84, thereby realizing the fixed connection between the connecting frame 8 and the gate opening and closing machine.

[0031] Specifically, the width of the gap 84 is greater than the width of the stud portion of the bolt 183 and smaller than the width of the nut portion of the fastening bolt 183.

[0032] The working principle and working process of this utility model are as follows:

[0033] When in use, the double-headed tension spring 9 is hooked vertically between the hanging hole II44 and the hanging hole I43. Since a vertical notch 41 is constructed on the side end of the base 4, the double-headed tension spring 9 drives the movable arm 49 and the transmission gear 48 to enter the vertical notch 41, and then move to the outside of the base 4 to the maximum extent, so that the transmission gear 48 on the movable arm 49 is tightly against the lifting screw or driving gear of the gate opening and closing machine, thereby making up for the distance between the transmission gear 48 and the lifting screw or driving gear of the gate opening and closing machine.

[0034] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A bidirectional measuring device with a large rotation range of a movable arm, characterized in that: A vertical notch (41) is constructed on the side end of the base (4), and the vertical notch (41) is located on the rotation path of the movable arm (49). A vertical partition plate (42) is also constructed in the base (4), and the movable arm (49) is rotatably connected to the vertical partition plate (42). A protruding hanging hole II (44) is constructed on the side end of the movable arm (49) adjacent to the vertical notch (41), and a hanging hole I (43) is constructed at the bottom of the vertical partition plate (42). A double-headed tension spring (9) is vertically hooked and hung between the hanging hole II (44) and the hanging hole I (43), so that the hanging hole II (44) can rotate with the movable arm (49) to the same vertical plane as the hanging hole I (43).

2. A bidirectional measuring device with a large rotation range of a movable arm according to claim 1, characterized in that: The height of the side ends of the vertical partition plate (42) decreases gradually in the direction approaching the vertical notch (41) until it is flush with the bottom of the vertical notch (41).

3. The bidirectional measuring device with a large rotation range of a movable arm according to claim 2, characterized in that: The side end surface of the vertical partition plate (42) is an arc-shaped slope structure.

4. The bidirectional measuring device with a large rotation range of a movable arm according to claim 1, characterized in that: The fastening bolt II (45) passes through the tail of the movable arm (49) and is threadedly connected to the vertical partition plate (42).

5. The bidirectional measuring device with a large rotation range of a movable arm according to claim 1, characterized in that: A strip-shaped waist groove (47) is provided on the transverse direction of the movable arm (49), and an adjusting bolt (46) passes through the waist groove (47) and is threadedly connected to the vertical partition plate (42).

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