Plane steel gate groove width detection device

Abstract

The utility model belongs to the technical field of gate groove width distance measurement, and provides a plane steel gate groove width detection device, which comprises a longitudinal beam, a counterweight arranged at the end part of the inner side of the longitudinal beam, a cross beam which is connected to the longitudinal beam and can be adjusted along the length direction of the longitudinal beam, traveling wheels arranged on the end surface of the outer side of the cross beam, and a lifting lug arranged at the end part of one side of the cross beam, and the measurement executing mechanism is arranged at the end part of the outer side of the longitudinal beam. According to the utility model, a series of continuous measurement values can be obtained, the overall measurement accuracy is high, and meanwhile, the electric steel wire rope reel is combined for use, and the photoelectric encoder is arranged on the electric steel wire rope reel, so that a descending distance value can be obtained and a corresponding relation is established with continuous width measurement values obtained by a measurement execution mechanism; and point positions with unqualified gate groove widths can be accurately positioned.

Description

Technical Field

[0001] The utility model belongs to the technical field of gate slot width distance measurement, and in particular relates to a gate slot width detection device for a plane steel gate. Background Art

[0002] At present, in the construction process of water conservancy and hydropower projects, the width of the gate slot of the flat steel gate has a decisive influence on whether the steel gate can be opened and closed smoothly. During construction and installation, the measurement of the gate slot width of the flat steel gate relies on the scaffolding in the gate shaft. However, when the construction unit completes the installation, the scaffolding is removed, and the supervision and third-party inspection agencies can only measure the gate slot width at the bottom sill. As a result, the measurable part of the gate slot width of the flat steel gate accounts for a very low proportion of the total length, and the overall measurement accuracy is insufficient; for deep-hole flat steel gates, a hanging basket is used to carry out measurement activities. The measurement staff are placed in the hanging basket and use a conventional measuring ruler to measure the width, which is not only dangerous but also difficult to guarantee the measurement accuracy. Utility Model Content

[0003] The purpose of the utility model is to provide a device for detecting the width of a flat steel gate slot, so as to solve the technical problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A device for detecting the width of a flat steel gate slot comprises a longitudinal beam, a counterweight arranged at the inner end of the longitudinal beam, a cross beam connected to the longitudinal beam and adjustable along the length direction of the longitudinal beam, a walking wheel arranged at the outer end face of the cross beam, a lifting lug arranged at the upper end of the cross beam, and a measuring actuator arranged at the outer end of the longitudinal beam; the measuring actuator comprises an outer cylinder movably hinged to the longitudinal beam, an inner cylinder whose right end is inserted into the outer cylinder and can slide relative to the outer cylinder, a spring arranged in the outer cylinder and whose two ends are respectively connected to the right end of the inner cylinder and the left end of the outer cylinder, a roller arranged at the right end of the outer cylinder and the left end of the inner cylinder, and a static magnetic grating sensor, the left end of the static magnetic grating sensor is fixedly connected to the inner cylinder, the right end is connected to the outer cylinder and is movable, and the movable scale of the static magnetic grating sensor is installed in the inner cylinder.

[0006] Furthermore, it includes two connecting rods, wherein the lower end of one of the connecting rods is hinged to the outer cylinder and the upper end is hinged to the left side of the longitudinal beam, and the lower end of the other connecting rod is hinged to the outer cylinder and the upper end is hinged to the right side of the longitudinal beam; the outer cylinder, the two connecting rods and the longitudinal beam are combined to form a planar four-bar linkage mechanism.

[0007] Furthermore, a slide groove is provided on the longitudinal beam along its length direction, and the cross beam is connected to the longitudinal beam at the slide groove by bolts.

[0008] Furthermore, the cross-section of the crossbeam is L-shaped, the walking wheels are arranged on the outside of its vertical end face, and the transverse end face of the crossbeam is connected to the longitudinal beam; there are two crossbeams, and the two crossbeams are respectively arranged at the upper end and the lower end of the longitudinal beam and the two are symmetrically arranged.

[0009] Furthermore, a hoop fixedly connected to the lower end of the outer cylinder is provided, and the right end of the static magnetostatic grating sensor is inserted into the hoop and can move relative to the hoop.

[0010] Furthermore, the right end portion of the outer cylinder and the left end portion of the inner cylinder are both provided with mounting plates, and the roller is mounted on the mounting plates.

[0011] Furthermore, the counterweight is connected to the longitudinal beam via counterweight mounting bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention can obtain a series of continuous measurement values, while the existing technology can only measure the width values ​​of several sections. In comparison, the present invention has a richer amount of measurement data, a higher overall measurement accuracy, and a more accurate judgment of installation quality.

[0014] The utility model can implement measurement through the operation of an electric wire rope drum. On the one hand, it can avoid the disadvantages of measurement operations performed by personnel on a scaffold, and when the scaffold conditions are not available, it can avoid personnel from carrying out measurement work in a hanging basket, thereby reducing measurement risks and improving measurement efficiency. On the other hand, a photoelectric encoder is provided on the electric wire rope drum to obtain a descent distance value, which establishes a corresponding relationship with the continuous width measurement values ​​obtained by the measuring actuator, and can accurately locate points where the door slot width is unqualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a partial schematic diagram of the utility model.

[0017] Figure 3 It is a top view of the utility model.

[0018] Figure 4 It is a side view of the present utility model.

[0019] Figure 5 It is a schematic diagram of the operating part of the utility model.

[0020] Among them, the names corresponding to the figure marks are as follows: 1-roller, 2-inner cylinder, 3-static magnetic grid sensor, 4-spring, 5-outer cylinder, 6-connecting rod, 7-longitudinal beam, 8-cross beam, 9-counterweight, 10-lifting ear, 11-traveling wheel, 12-slide groove, 13-counterweight mounting bolt, 14-mounting plate, 15-electric wire rope drum, 16-photoelectric encoder, 17-hoop, 18-door groove concrete. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to have a clearer understanding and knowledge of the present invention, the present invention is further described in detail below in conjunction with the embodiments. It should be noted that the specific embodiments described below are only used to explain the present invention and facilitate understanding. The technical solutions provided by the present invention are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the scope of protection of the present invention. Example

[0022] like Figures 1 to 5 As shown, this embodiment provides a flat steel gate slot width detection device, which is a measuring part. When implemented, it can be used in conjunction with an operating part. The operating part is an electric wire rope drum and a photoelectric encoder arranged on the electric wire rope drum.

[0023] In this embodiment, the flat steel gate slot width detection device includes a longitudinal beam, a counterweight arranged at the inner end of the longitudinal beam, a cross beam connected to the longitudinal beam and adjustable along the length direction of the longitudinal beam, a walking wheel arranged on the outer end face of the cross beam, a lifting lug arranged at the upper end of the cross beam, and a measuring actuator arranged at the outer end of the longitudinal beam; preferably, the longitudinal beam is made of square steel, the lifting lug is connected to the cross beam by a bolt to form a movable hinge, the wire rope of the electric wire rope drum is connected to the lifting lug, and during measurement, the measuring part is lowered to the flat steel gate slot by the electric wire rope drum for measurement.

[0024] In this embodiment, the crossbeam can be adjusted relative to the longitudinal beam. The implementation structure is as follows: a chute is provided on the longitudinal beam along its length, and the crossbeam is connected to the longitudinal beam at the chute by bolts. In a further preferred embodiment, the crossbeam has an L-shaped cross section, with running wheels provided on the outside of its vertical end face, and the transverse end face of the crossbeam connected to the longitudinal beam. There are two crossbeams, symmetrically arranged at the upper and lower ends of the longitudinal beam, respectively. The lifting lugs are connected to the crossbeam at the upper end, preferably in the middle of the crossbeam. The two crossbeams can be fastened together using fastening bolts. During measurement, the running wheels on both sides of the crossbeam abut against the concrete of the door groove. This arrangement can accommodate the measurement requirements of different door groove depths and tread widths. This can be achieved by simply adjusting the relative position of the crossbeam in the longitudinal beam chute. After the adjustment is completed, the connection between the crossbeam and the longitudinal beam is tightened by bolts.

[0025] Based on the adjustable structural setting of the crossbeam and the longitudinal beam, in this embodiment, the counterweight is connected to the longitudinal beam through the counterweight mounting bolts. When the width tread of the door groove to be measured changes in the depth direction, the relative position of the crossbeam and the longitudinal beam is adjusted. After the adjustment is completed, the center of gravity of the measuring part is always maintained at the lifting ear by increasing or decreasing the number of counterweights, and the device is not skewed, avoiding adverse effects on the accuracy of the measurement results.

[0026] The measuring actuator is the component that performs the measurement. In this embodiment, it comprises an inner cylinder and an outer cylinder that can move relative to each other. Their implementation is as follows: The right end of the inner cylinder is inserted into the outer cylinder, with a clearance fit between the two to ensure relative sliding. Furthermore, a spring is installed within the outer cylinder, with its ends connected to the right and left ends of the inner and outer cylinders, respectively. When the left and right ends of the inner and outer cylinders change due to flatness, the inner and outer cylinders contract and expand.

[0027] In this embodiment, rollers are installed at both the right end of the outer tube and the left end of the inner tube. Furthermore, mounting plates are provided at both the right end and the left end of the inner tube, to which the rollers are mounted. Conventional connection structures such as bolts can be used. During measurement, springs press the rollers against the door slot tread, allowing the inner and outer tubes to slide relative to each other as the flatness changes.

[0028] The static magnetic grating sensor is connected to the inner cylinder and the outer cylinder. Its specific connection structure is as follows: the left end of the static magnetic grating sensor is fixedly connected to the inner cylinder, and the right end is connected to the outer cylinder and is movable. The movable scale of the static magnetic grating sensor is installed in the inner cylinder. The connection structure of the right end of the static magnetic grating sensor and the outer cylinder is as follows: a hoop fixedly connected to the lower end of the outer cylinder is provided, and the right end of the static magnetic grating sensor is inserted into the hoop and can move relative to the hoop. Through the above arrangement, when the inner cylinder and the outer cylinder slide relative to each other, the static magnetic grating sensor is driven to operate, thereby measuring the change in the door slot width through the static magnetic grating sensor. Figure 3 As shown in the figure, X represents the width of the door slot and Y represents the depth of the door slot.

[0029] The connection between the measuring actuator and the longitudinal beam is achieved through an outer cylinder, and its specific structure is as follows: it also includes two connecting rods, one of which has a lower end hinged to the outer cylinder and an upper end hinged to the left side of the longitudinal beam, and the other connecting rod has a lower end hinged to the outer cylinder and an upper end hinged to the right side of the longitudinal beam; the outer cylinder, the two connecting rods and the longitudinal beam are combined to form a planar four-bar linkage. Through the above arrangement, when the tread flatness changes, the displacement caused by the measuring action of the inner cylinder and the outer cylinder will not cause the position of the longitudinal beam to change, thereby ensuring the accuracy of the measurement.

[0030] With the above configuration, an application method of a planar steel gate slot width detection device includes the following steps:

[0031] Step S1: According to the change of the door groove width tread to be measured in the depth direction, the relative positions of the crossbeam and the longitudinal beam are adjusted so that the crossbeam adapts to the door groove width tread to be measured;

[0032] Step S2: Adjust the counterweight so that the center of gravity remains at the lifting lug, and the adjustment method is to increase or decrease the counterweight;

[0033] Step S3: operate the electric wire rope drum to lower the longitudinal beam and the measuring actuator;

[0034] Step S4: The measuring actuator performs measurement, and the rollers at both ends press against the door slot tread. When the flatness changes, the inner cylinder and the outer cylinder slide relative to each other, driving the static magnetic grid sensor to operate and measure the change in the door slot width.

[0035] Through the above, the door slot width measurement is completed once. The longitudinal beam and the measuring actuator are continuously lowered in the depth direction, and steps S3 to S4 are repeated to obtain continuous width measurement values ​​through the measuring actuator. At the same time, the corresponding descending distance can be obtained through the photoelectric encoder. The corresponding relationship between the descending distance and the width measurement value is constructed, and the corresponding relationship table can be used to represent it, as shown in the following table:

[0036] Serial number Descent distance (cm) Width measurement (cm) 1 <![CDATA[H1]]> <![CDATA[X1]]> 2 <![CDATA[H2]]> <![CDATA[X2]]> 4 <![CDATA[H3]]> <![CDATA[X3]]> 5 <![CDATA[H4]]> <![CDATA[X4]]> 6 <![CDATA[H5]]> <![CDATA[X5]]>

[0037] If the door slot width is unqualified, the descending distance can be obtained through the corresponding relationship, and then the unqualified point of the door slot width can be accurately located.

[0038] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A device for detecting the width of a flat steel gate slot, characterized in that: The invention comprises a longitudinal beam (7), a counterweight (9) arranged at the inner end of the longitudinal beam (7), a crossbeam (8) connected to the longitudinal beam (7) and adjustable along the length direction of the longitudinal beam (7), a running wheel (11) arranged at the outer end surface of the crossbeam (8), a lifting lug (10) arranged at the upper end of the crossbeam (8), and a measuring actuator arranged at the outer end of the longitudinal beam (7); the measuring actuator comprises an outer cylinder (5) movably hinged to the longitudinal beam (7), the right end of which is inserted into the outer cylinder (5) and can be hinged to the longitudinal beam (7). An inner cylinder (2) slides relatively with an outer cylinder (5), a spring (4) is arranged in the outer cylinder (5) and has two ends connected to the right end of the inner cylinder (2) and the left end of the outer cylinder (5), a roller (1) is arranged at the right end of the outer cylinder (5) and the left end of the inner cylinder (2), and a static magnetic grating sensor (3), the left end of the static magnetic grating sensor (3) is fixedly connected to the inner cylinder (2), and the right end is connected to the outer cylinder (5) and is movable, and the movable scale of the static magnetic grating sensor (3) is installed in the inner cylinder (2).

2. The device for detecting the width of a flat steel gate slot according to claim 1 is characterized in that: It also includes two connecting rods (6), wherein the lower end of one of the connecting rods (6) is hinged to the outer cylinder (5) and the upper end is hinged to the left side of the longitudinal beam (7), and the lower end of the other connecting rod (6) is hinged to the outer cylinder (5) and the upper end is hinged to the right side of the longitudinal beam (7); the outer cylinder (5), the two connecting rods (6) and the longitudinal beam (7) are combined to form a planar four-link mechanism.

3. The device for detecting the width of a flat steel gate slot according to claim 2, characterized in that: A sliding groove (12) is provided on the longitudinal beam (7) along its length direction, and the cross beam (8) is connected to the longitudinal beam (7) at the sliding groove (12) via bolts.

4. The device for detecting the width of a flat steel gate slot according to claim 3 is characterized in that: The cross-section of the cross-beam (8) is L-shaped, the travel wheel (11) is arranged on the outside of its vertical end face, and the transverse end face of the cross-beam (8) is connected to the longitudinal beam (7); there are two cross-beams (8), and the two cross-beams (8) are respectively arranged at the upper end and the lower end of the longitudinal beam (7) and are symmetrically arranged.

5. The device for detecting the width of a flat steel gate slot according to claim 4, characterized in that: A hoop (17) fixedly connected to the outer cylinder (5) is provided at the lower end thereof, and the right end of the static magnetic grating sensor (3) is inserted into the hoop (17) and is movable relative to the hoop (17).

6. The device for detecting the width of a flat steel gate slot according to claim 5, characterized in that: The right end of the outer cylinder (5) and the left end of the inner cylinder (2) are both provided with mounting plates (14), and the roller (1) is mounted on the mounting plates (14).

7. The device for detecting the width of a flat steel gate slot according to claim 6, characterized in that: The counterweight (9) is connected to the longitudinal beam (7) via a counterweight mounting bolt (13).

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