Gate opening measurement control device

Abstract

The utility model discloses a gate opening measurement control device which comprises a gate outer frame, a gate is movably arranged at the bottom end of the inner side of the gate outer frame, a ball screw is fixedly connected to the middle of the upper end of the gate, and a ball nut is movably arranged on the surface of the ball screw. The lower end of the ball nut is connected with a driven gear through a shaft key, the upper end of the gate outer frame is fixedly connected with a protective shell, a servo motor is arranged in the protective shell, and a rotating shaft at the lower end of the servo motor is connected with a driving gear through a shaft key. The first telescopic protective sleeve and the second telescopic protective sleeve are movably arranged on the surface of the ball screw in a sleeving mode, the first telescopic protective sleeve and the second telescopic protective sleeve have elasticity, the ball screw is protected through the two protective sleeves, and corrosion of dust, oxygen and water caused by the fact that the ball screw is placed in the external environment for a long time is avoided; and therefore, the influence on driving of the ball screw is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gate opening control, in particular to a gate opening measurement control device. Background Art

[0002] The gate is a control facility used to close and open the discharge channel. It is an important part of hydraulic structures. The gate is driven by a screw, which is connected by a driving gear and a screw shaft key, so that the driving gear drives the screw to rotate when it rotates, and the screw drives the nut to move up and down, wherein the nut is fixedly connected to the gate, which makes the gate move up and down;

[0003] In the existing technology, the overall gravity of the gate acts on the lead screw, which may bend after long-term use; the lead screw is exposed to dust, oxygen and water for a long time, which causes corrosion to the lead screw drive and reduces its service life; during operation, the gravity of the entire gate directly acts on the threads on the surface of the lead screw, which causes the gravity of the gate to damage the lead screw threads. Damage to the threads will further reduce the precision of the up and down displacement of the gate driven by the lead screw; therefore, in order to solve the above problems, we propose a gate opening measurement and control device. Utility Model Content

[0004] The purpose of the utility model is to provide a gate opening measurement and control device to solve the problems raised in the above-mentioned background technology, in which the lead screw is placed in the external environment for a long time, resulting in corrosion by dust, oxygen and water, thereby affecting the lead screw drive and reducing its service life; during operation, the gravity of the entire gate directly acts on the threads on the surface of the lead screw, thereby causing the gravity of the gate to damage the lead screw threads, and the damage to the threads will further lead to a reduction in the precision of the lead screw driving the gate up and down displacement.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gate opening measurement and control device, comprising a gate outer frame, a gate is movably provided at the bottom end of the inner side of the gate outer frame, a ball screw is fixedly connected to the middle of the upper end of the gate, a ball nut is movably provided on the surface of the ball screw, the lower end of the ball nut is connected to a driven gear through a shaft key, the upper end of the gate outer frame is fixedly connected to a protective housing, a servo motor is provided inside the protective housing, the rotating shaft of the servo motor at the lower end is connected to a driving gear through a shaft key, the driving gear is rotatably engaged with the driven gear, and auxiliary guide rods are fixedly connected to both sides of the upper end of the gate, and the two auxiliary guide rods pass through the upper end of the gate outer frame.

[0006] Preferably, the ball nut, driven gear, driving gear and servo motor are all located inside the protective housing, and the ball screw passes through the middle of the upper end of the gate outer frame and the entire protective housing and extends to the upper outside of the protective housing.

[0007] Preferably, a second telescopic protective cover is movably provided on the surface of the ball screw located at the upper end of the protective housing, and a first telescopic protective cover is movably provided on the surface of the ball screw located at the lower end of the protective housing.

[0008] Preferably, both sides of the upper end of the gate outer frame are fixedly connected to limiting components, and the two auxiliary guide rods respectively pass through the middle of the two limiting components.

[0009] Preferably, the limiting component includes a support frame, wherein movable holes are penetrated at both front and rear ends of the support frame, a movable column is movably provided in the movable hole, one end of the movable column is fixedly connected to a clamping block, and a spring is connected between one end of the clamping block and the inner end of the support frame.

[0010] Preferably, a plurality of limiting grooves are arranged on the front and rear side surfaces of the auxiliary guide rod, and the clamping blocks are inserted into the limiting grooves.

[0011] Preferably, a laser rangefinder is fixedly connected to the lower end of the upper crossbeam of the gate outer frame, a reflector is fixedly connected to the upper end of the gate, and the laser rangefinder is located directly above the reflector.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The first telescopic protective cover and the second telescopic protective cover in the utility model are movably mounted on the surface of the ball screw. The first telescopic protective cover and the second telescopic protective cover are elastic, so that the first telescopic protective cover and the second telescopic protective cover can be contracted on the surface of the ball screw. The first telescopic protective cover and the second telescopic protective cover protect the ball screw, preventing the ball screw from being exposed to dust, oxygen and water corrosion due to being placed in the external environment for a long time, thereby reducing the impact on the ball screw drive and increasing the service life;

[0014] 2. The utility model has auxiliary guide rods fixedly connected to both sides of the upper end of the gate, and the two auxiliary guide rods penetrate the upper end of the gate outer frame. The installation of the two auxiliary guide rods ensures the stability of the gate lifting;

[0015] 3. In the utility model, the output shaft at the lower end of the servo motor drives the driving gear to rotate, and the driving gear meshes with the driven gear at the lower end of the ball nut. The rotation of the driving gear drives the rotation of the driven gear and the ball nut. The threads on the surface of the ball nut and the ball screw cooperate through the ball movement. The rotation of the ball nut causes the ball screw to drive the gate at the lower end to move vertically up and down, so that the gate is in an open and closed state in the outer frame of the gate. The ball nut drives the ball screw to move up and down, and the ball nut bears the downward gravity of the gate on the ball screw, thereby reducing the bending phenomenon of the ball screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a front view cutaway view of the utility model as a whole;

[0018] Figure 3 For this utility model Figure 1 The three-dimensional structure diagram at A in the middle;

[0019] Figure 4 For this utility model Figure 3 Center front view cutaway.

[0020] In the figure: 1. gate outer frame; 2. gate; 3. first telescopic protective cover; 4. limiting component; 401. support frame; 402. movable column; 403. spring; 404. clamping block; 5. second telescopic protective cover; 6. driving gear; 7. driven gear; 8. ball nut; 9. protective housing; 10. auxiliary guide rod; 11. servo motor; 12. limiting groove; 13. laser rangefinder; 14. reflector; 15. ball screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 4The utility model provides an embodiment: a gate opening measurement and control device, comprising a gate outer frame 1, a gate 2 is movably provided at the bottom end of the inner side of the gate outer frame 1, a ball screw 15 is fixedly connected to the middle of the upper end of the gate 2, a ball nut 8 is movably provided on the surface of the ball screw 15, and the lower end of the ball nut 8 is connected to a driven gear 7 through a shaft key, a protective housing 9 is fixedly connected to the upper end of the gate outer frame 1, a servo motor 11 is provided inside the protective housing 9, a rotating shaft at the lower end of the servo motor 11 is connected to a driving gear 6 through a shaft key, and the driving gear 6 is rotatably meshed with the driven gear 7, and auxiliary guide rods 10 are fixedly connected to both sides of the upper end of the gate 2, and the two auxiliary guide rods 10 pass through the upper end of the gate outer frame 1, and the installation of the two auxiliary guide rods 10 ensures the stability of the gate 2 lifting and lowering;

[0023] The ball nut 8, driven gear 7, driving gear 6 and servo motor 11 are all located inside the protective housing 9. The ball screw 15 passes through the middle of the upper end of the gate outer frame 1 and the entire half of the protective housing 9 and extends to the upper outside of the protective housing 9. The surface of the ball screw 15 located at the upper end of the protective housing 9 is movably provided with a second telescopic protective cover 5, and the surface of the ball screw 15 located at the lower end of the protective housing 9 is movably provided with a first telescopic protective cover 3. During the up and down movement of the overall ball screw 15, the first telescopic protective cover 3 and the second telescopic protective cover 5 themselves have elasticity, which allows the first telescopic protective cover 3 and the second telescopic protective cover 5 to shrink on the surface of the ball screw 15. The first telescopic protective cover 3 and the second telescopic protective cover 5 protect the ball screw 15 and prevent the ball screw 15 from being exposed to the external environment for a long time, resulting in corrosion from dust, oxygen and water, thereby reducing the impact on the drive of the ball screw 15 and increasing its service life.

[0024] When the device is in use, first turn on the switch of the servo motor 11, so that the output shaft at the lower end of the servo motor 11 drives the driving gear 6 to rotate, and the driving gear 6 is meshed with the driven gear 7 at the lower end of the ball nut 8. Then, the rotation of the driving gear 6 drives the rotation of the driven gear 7 and the ball nut 8, wherein the threads on the surface of the ball nut 8 and the ball screw 15 are engaged through the ball movement, and then the rotation of the ball nut 8 causes the ball screw 15 to drive the gate 2 at the lower end to move vertically up and down, so that the gate 2 is in an open and closed state in the gate outer frame 1, wherein the ball nut 8 drives the ball screw 15 to move up and down, and the ball nut 8 bears the downward gravity of the gate 2 on the ball screw 15, thereby reducing the bending phenomenon of the ball screw 15;

[0025] The limiting components 4 are fixedly connected to both sides of the upper end of the gate outer frame 1, and the two auxiliary guide rods 10 respectively penetrate the middle of the two limiting components 4, wherein the limiting component 4 includes a support frame 401, and movable holes are penetrated at both ends of the support frame 401, and a movable column 402 is movably arranged in the movable hole, and a clamping block 404 is fixedly connected to one end of the movable column 402, and a spring 403 is connected between one end of the clamping block 404 and the inner side end of the support frame 401, and a plurality of limiting grooves 12 are arranged on the front and rear surfaces of the auxiliary guide rod 10, and the clamping block 404 is inserted into the limiting groove 12;

[0026] When the gate 2 moves upward continuously, the gate 2 drives the auxiliary guide rods 10 on both sides of the upper end to move upward, wherein the cross-sectional surfaces of the clamping block 404 fixedly welded at one end of the movable column 402 and the limiting groove 12 are both trapezoidal structures, then the inclined surface of the clamping block 404 faces downward, and its straight surface faces upward, the inclined surface of the lower end of the clamping block 404 and the inclined surface of the lower end of the limiting groove 12 are movably fitted, so that the overall limiting groove 12 can move upward, and the straight surface on the clamping block 404 has a supporting effect on the straight surface on the limiting groove 12, thereby making the two clamping blocks 404 have a supporting and limiting effect on the overall auxiliary guide rod 10, then the overall limiting component 4 reduces the pressure between the surface thread of the ball screw 15 and the internal ball of the ball nut 8 by supporting the auxiliary guide rod 10, thereby reducing the wear between the surface of the gate 2 and the ball, which not only increases the service life of the ball screw 15, but also improves the precision of the up and down displacement of the ball screw 15;

[0027] By pulling the movable column 402 outward, the movement of the movable column 402 compresses the extension elastic force of the spring 403, so that the clamping block 404 is disengaged from the limiting groove 12, thereby contacting the integral limiting component 4 to limit the auxiliary guide rod 10.

[0028] The gate outer frame 1 is composed of an upper crossbeam, two supporting columns and a lower crossbeam fixedly connected to form a frame structure. The lower end of the upper crossbeam of the gate outer frame 1 is also fixedly connected to a laser rangefinder 13, and the upper end of the gate 2 is fixedly connected to a reflector 14. The laser rangefinder 13 is located directly above the reflector 14. The laser rangefinder 13 is used to measure the distance between the upper crossbeam of the gate outer frame 1 and the gate 2. A protective shell is provided on the surface of the laser rangefinder 13 to protect the laser rangefinder 13 from dust and water vapor. An auxiliary lens is provided at the bottom end of the shell to improve the optical path and reduce the interference of ambient light on the distance measurement, so that the device can also work in the field environment.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A gate opening measurement and control device, comprising a gate outer frame (1), characterized in that: A gate (2) is movably provided at the bottom end of the inner side of the gate outer frame (1), a ball screw (15) is fixedly connected to the middle of the upper end of the gate (2), a ball nut (8) is movably provided on the surface of the ball screw (15), the lower end of the ball nut (8) is connected to a driven gear (7) via a shaft key, a protective housing (9) is fixedly connected to the upper end of the gate outer frame (1), a servo motor (11) is provided inside the protective housing (9), a rotating shaft at the lower end of the servo motor (11) is connected to a driving gear (6) via a shaft key, the driving gear (6) is rotatably meshed with the driven gear (7), auxiliary guide rods (10) are fixedly connected to both sides of the upper end of the gate (2), and the two auxiliary guide rods (10) pass through the upper end of the gate outer frame (1).

2. A gate opening measurement and control device according to claim 1, characterized in that: The ball nut (8), driven gear (7), driving gear (6) and servo motor (11) are all located inside the protective housing (9), and the ball screw (15) passes through the middle of the upper end of the gate outer frame (1) and the entire protective housing (9) and extends to the upper outside of the protective housing (9).

3. A gate opening measurement and control device according to claim 2, characterized in that: A second telescopic protective cover (5) is movably provided on the surface of the ball screw (15) located at the upper end of the protective housing (9), and a first telescopic protective cover (3) is movably provided on the surface of the ball screw (15) located at the lower end of the protective housing (9).

4. A gate opening measurement and control device according to claim 1, characterized in that: Both sides of the upper end of the gate outer frame (1) are fixedly connected to the limiting components (4), and the two auxiliary guide rods (10) respectively penetrate the middle of the two limiting components (4).

5. A gate opening measurement and control device according to claim 4, characterized in that: The limiting component (4) comprises a support frame (401), wherein movable holes are penetrated at both the front and rear ends of the support frame (401), wherein a movable column (402) is movably arranged in the movable hole, wherein one end of the movable column (402) is fixedly connected to a clamping block (404), and a spring (403) is connected between one end of the clamping block (404) and the inner side end of the support frame (401).

6. A gate opening measurement and control device according to claim 5, characterized in that: A plurality of limiting grooves (12) are arranged on the front and rear side surfaces of the auxiliary guide rod (10), and the clamping block (404) is inserted into the limiting grooves (12).

7. A gate opening measurement and control device according to claim 6, characterized in that: The lower end of the upper crossbeam of the gate outer frame (1) is fixedly connected to a laser rangefinder (13), the upper end of the gate (2) is fixedly connected to a reflector (14), and the laser rangefinder (13) is located directly above the reflector (14).

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