Gate hoist capable of directly installing bidirectional measuring device

Abstract

The utility model provides a kind of gate hoist directly installed with two-way measuring device, the base of two-way measuring device is directly installed between the transverse gap of portal frame and lifting frame, the encoder of two-way measuring device is installed on movable arm, and the output end of encoder is connected with data taking wheel and transmission gear for engaging connection secondary gear;Movable arm is driven by elastic member to make data taking wheel tightly abut lifting frame;The utility model utilizes lifting frame direct drive data taking wheel rotation to directly trigger actual height position measurement and stroke position measurement, without any prior modification to gate hoist, two-way measuring device can be installed between the transverse gap of portal frame and lifting frame, and the design of elastic member can compensate the spacing difference of data taking wheel relative to lifting frame in different models of gate hoist, with higher adaptation versatility.

Description

Technical Field

[0001] This utility model relates to the field of distance measurement technology, specifically to a gate opening and closing machine that can be directly mounted with a bidirectional measuring device. Background Technology

[0002] Gate hoists, also known as gate hoists, are a type of large-scale hydraulic machinery. Gate hoists are crucial to the normal operation of hydraulic structures. In addition to meeting the design requirements of general lifting machinery, they are of special significance in terms of safe and reliable operation and flexible and convenient operation.

[0003] Patent CN118243039B (publication number) proposes a bidirectional measuring device including a transmission mechanism and a tensioning mechanism, which can realize both gate position measurement and stroke measurement. However, it still has the following problems:

[0004] For the installation of winch-type gate hoists, a drive gear needs to be installed on the rotating shaft of the gate hoist. Then, the drive gear is connected to the transmission gear of the bidirectional measuring device through meshing. This requires reserving a position for the drive gear on the rotating shaft and making a separate support structure on the gate frame of the gate hoist to install the bidirectional measuring device. This is not suitable for gate hoists that have already been mass-produced. Utility Model Content

[0005] In view of this, the problem to be solved by this utility model is to provide a gate opening and closing machine that can be directly mounted with a bidirectional measuring device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A gate opening and closing machine with a directly mounted bidirectional measuring device is provided. The base of the bidirectional measuring device is installed between the lateral gap between the gate frame and the lifting frame. The encoder of the bidirectional measuring device is installed on the movable arm. The output end of the encoder is connected to a data acquisition wheel and a transmission gear for meshing with the secondary gear. The movable arm is driven by an elastic element so that the data acquisition wheel presses tightly against the lifting frame.

[0008] The lifting frame is vertically connected to the portal frame. The output end of the drive motor is connected to a double-headed transmission gearbox. A cable reel is installed on each of the two output shafts of the double-headed transmission gearbox. One end of the cable on the cable reel is fixedly connected to the portal frame, and the other end is fixedly connected to the horizontal shaft at the bottom of the lifting frame.

[0009] The gate is vertically slidable on the gantry frame, and one end of the lifting frame is fixedly connected to the gate.

[0010] Anti-slip grooves are evenly distributed on the outer circumference of the wheels.

[0011] The base has a through groove on its side, through which the mounting bolts pass and are threaded to the gantry frame.

[0012] The elastic element is a double-headed tension spring. Hanging holes are constructed on the side of the movable arm and the top of the base, and the two ends of the double-headed tension spring are hooked and connected respectively.

[0013] The movable arm has a strip-shaped groove along its height direction, and the adjusting bolt passes through the groove and is threaded to the side wall of the base.

[0014] The advantages and positive effects of this utility model are:

[0015] The lifting motion of the lifting frame directly drives the rotation of the sampling wheel to measure the height and stroke position. No prior modification to the gate hoist is required. The bidirectional measuring device can be directly installed between the lateral gap between the gantry frame and the lifting frame. The design of the elastic element can compensate for the difference in the distance between the sampling wheel and the lifting frame in different models of gate hoists, and it has great versatility. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall structural diagram of a screw-type gate hoist with a bidirectional measuring device;

[0019] Figure 2 This is an enlarged view of a screw-type gate hoist with a bidirectional measuring device from a first-person perspective.

[0020] Figure 3 This is an enlarged view of a screw-type gate hoist with a bidirectional measuring device from a second perspective.

[0021] Figure 4 This is a structural diagram of the bidirectional measuring device from a first-view perspective;

[0022] Figure 5 yes Figure 4 Structure diagram after hiding the encoder;

[0023] Figure 6 This is a structural diagram of the bidirectional measuring device from a second perspective;

[0024] In the diagram: drive shaft 11, data acquisition wheel 12, anti-slip groove 121, drive gear 13, base 2, limit measuring seat 22, secondary gear 24, movable arm 3, waist groove 31, fastening bolt 32, adjusting bolt 33, limit switch group 6, upper limit switch 61, lower limit switch 62, gantry frame 71, lifting frame 72, horizontal shaft 721, drive motor 81, double-headed transmission gearbox 82, output shaft 821, coil 83, cable 84, gate 85, double-headed tension spring 9. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 3 As shown, this utility model provides a gate opening and closing machine with a directly mounted bidirectional measuring device. The base 2 of the bidirectional measuring device can be directly installed between the lateral gap between the gantry frame 71 and the lifting frame 72. The encoder 4 of the bidirectional measuring device is fixedly installed on the movable arm 3. The output end of the encoder 4 passes through the movable arm 3 and connects to the data collection wheel 12 and the transmission gear 13 for meshing with the secondary gear 24. The movable arm 3 is driven by the elastic element to make the data collection wheel 12 press against the lifting frame 72. Then, when the lifting frame 72 rises or falls, it synchronously drives the data collection wheel 12 to rotate under the action of friction. Since the data collection wheel 12 and the transmission gear 13 are related to the encoder... The output end of the encoder 4 is coaxially fixedly connected, and the encoder wheel 12 synchronously drives the transmission gear 13 and the output shaft of the encoder 4 to rotate, thereby realizing the real-time measurement of the actual height position of the gate. The transmission gear 13 also meshes with the secondary gear 24, which drives the transmission shaft 11 on the base 2 to rotate synchronously. The transmission shaft 11 is a lead screw structure, which drives the limit measuring seat 22 located on the lead screw nut seat to move. When the gate reaches the limit position of the highest or lowest point, the limit measuring seat 22 also synchronously contacts the upper limit switch 61 or lower limit switch 62 of the limit switch group 6 on the base 2, thereby realizing the travel measurement.

[0027] This invention utilizes the lifting frame 72 to directly trigger the actual height position measurement and stroke position measurement by directly contacting the counting wheel 12. No prior modification to the gate opening and closing machine is required. The bidirectional measuring device is directly installed between the lateral gap between the gantry frame 71 and the lifting frame 72. The design of the elastic element can compensate for the distance difference between the counting wheel 12 and the lifting frame 72 in different models of gate opening and closing machines, and has great versatility.

[0028] Specifically, the lifting frame 72 is vertically connected to the gantry frame 71. The output end of the drive motor 81 is connected to a double-headed transmission gearbox 82. Both sets of output shafts 821 of the double-headed transmission gearbox 82 are equipped with cable reels 83. One end of the cable 84 on the cable reel 83 is fixedly connected to the gantry frame 71, and the other end is fixedly connected to the horizontal shaft at the bottom of the lifting frame 72. The horizontal shaft is connected to the shaft seat on the lifting frame 72 and the gate 85, and anti-detachment baffles are fixedly connected to both ends. When the cable reel 83 winds up or lowers the cable 84, the lifting frame 72 is simultaneously pulled up and lowered.

[0029] Specifically, the gate 85 is vertically slidable on the gantry frame 71, and one end of the lifting frame 72 is fixedly connected to the gate 85. The gate 85 is opened and closed by pulling up and lowering the lifting frame 72.

[0030] like Figures 4 to 6 As shown, specifically, anti-slip grooves 121 are evenly distributed on the outer circumferential surface of the data collection wheel 12. The anti-slip grooves 121 can increase the damping between the lifting frame 72 and the data collection wheel 12, and avoid the data collection wheel 12 from slipping, which would cause measurement errors.

[0031] Specifically, a through groove is constructed on the side of the base 2, and the mounting bolt passes through the through groove and is threaded to the gantry frame 71, thereby realizing the installation of the bidirectional measuring device.

[0032] Specifically, the two ends of the double-headed tension spring 9 are hooked to the side of the movable arm 3 and the top of the base 2, respectively, so as to achieve elastic tight contact between the data collection wheel 12 on the movable arm 3 and the lifting frame 72 that drives the gate to rise and fall.

[0033] Specifically, the movable arm 3 has a strip-shaped groove 31 in the height direction, and the adjusting bolt 33 passes through the groove 31 and is threaded to the side wall of the base 2.

[0034] Specifically, after the fastening bolt passes through the tail of the movable arm 3, the threaded part of the fastening bolt is threadedly connected to the side wall of the base 2. A gap is left between the movable arm 3 and the base 2 so that the movable arm 3 will not detach from the base 2 and can rotate relative to the base 2. A strip-shaped waist groove 31 is opened in the height direction of the movable arm 3. The adjusting bolt 33 passes through the waist groove 31 and is threadedly connected to the side wall of the base 2 to limit the limit rotation stroke of the movable arm 3.

[0035] Furthermore, since the gap between the lifting frame 72 and the gantry frame 71 of some gate hoists is narrow, in one embodiment of this application, the movable arm 3 is located outside the base 2 and is rotatably connected to the side wall of the base 2. In this way, the rotation stroke of the movable arm 3 is not limited by the base 2, so that the transmission gear 13 can mesh with the secondary gear 24 in the lateral direction. That is, the transmission gear 13 and the secondary gear 24 are at the same horizontal position or close to the same horizontal position, so that the overall height of the measuring device can be reduced, down to the height of the base 2. By optimizing the combined height of the base 2 and the movable arm 3, it can be applied to working conditions with narrow installation space.

[0036] The working principle and process of this utility model are as follows:

[0037] When the lifting frame 72 rises or falls, it synchronously drives the data acquisition wheel 12 to rotate under the action of friction. Since the data acquisition wheel 12 and the transmission gear 13 are coaxially fixedly connected about the output end of the encoder 4, the data acquisition wheel 12 synchronously drives the transmission gear 13 and the output shaft of the encoder 4 to rotate, thereby realizing the real-time measurement of the actual height position of the gate. The transmission gear 13 also meshes with the secondary gear 24, which drives the transmission shaft 11 on the base 2 to rotate synchronously. The transmission shaft 11 is a lead screw structure, which in turn drives the limit measuring seat 22 located on the lead screw nut seat to move. When the gate reaches the limit position of the highest or lowest point, the limit measuring seat 22 also synchronously contacts the upper limit switch 61 or the lower limit switch 62 of the limit switch group 6 on the base 2, thereby realizing the travel measurement.

[0038] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A gate opening and closing mechanism capable of directly mounting a bidirectional measuring device, characterized in that, The base (2) of the bidirectional measuring device is installed between the lateral gap of the gantry frame (71) and the lifting frame (72). The encoder (4) of the bidirectional measuring device is installed on the movable arm (3). The output end of the encoder (4) is connected to the data acquisition wheel (12) and the transmission gear (13) for meshing with the secondary gear (24). The movable arm (3) is driven by the elastic element so that the data acquisition wheel (12) presses against the lifting frame (72).

2. The gate opening and closing mechanism with a directly mounted bidirectional measuring device according to claim 1, characterized in that, The lifting frame (72) is vertically connected to the portal frame (71). The output end of the drive motor (81) is connected to a double-headed transmission gearbox (82). Both output shafts (821) of the double-headed transmission gearbox (82) are equipped with cable reels (83). One end of the cable (84) on the cable reel (83) is fixedly connected to the portal frame (71), and the other end is fixedly connected to the lifting frame (72).

3. A gate opening and closing mechanism with a directly mounted bidirectional measuring device according to claim 2, characterized in that, The gate (85) is vertically slidable on the gantry frame (71), and one end of the lifting frame (72) is fixedly connected to the gate (85).

4. A gate opening and closing mechanism with a directly mounted bidirectional measuring device according to claim 1, characterized in that, Anti-slip grooves (121) are evenly distributed on the outer circumferential surface of the wheel (12).

5. A gate opening and closing mechanism with a directly mounted bidirectional measuring device according to claim 1, characterized in that, The base (2) has a through groove on its side, and the mounting bolts pass through the through groove and are threaded to the portal frame (71).

6. A gate opening and closing mechanism with a directly mounted bidirectional measuring device according to claim 1, characterized in that, The elastic element is a double-headed tension spring (9). The side of the movable arm (3) and the top of the base (2) are both equipped with hanging holes, and the two ends of the double-headed tension spring (9) are hooked and connected respectively.

7. A gate opening and closing mechanism with a directly mounted bidirectional measuring device according to claim 1, characterized in that, The movable arm (3) has a strip-shaped groove (31) in the height direction, and the adjusting bolt (33) passes through the groove (31) and is threaded to the side wall of the base (2).

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