CN219078894U

CN219078894U - Port crane presss from both sides wheel arresting gear

Info

Publication number: CN219078894U
Application number: CN202223180929.6U
Authority: CN
Inventors: 王御龙; 孙华; 李小山; 孙琪; 丁磊; 孟凡星; 刘辉
Original assignee: Qingdao Port Equipment Manufacturing Co ltd
Current assignee: Qingdao Port Equipment Manufacturing Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-26
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a port crane clamping wheel braking device which comprises a base, wherein the base is connected with a travelling trolley, braking arms are respectively arranged on two sides of the base, a hydraulic cylinder is arranged between the two braking arms, a sensor is arranged on the braking arm which is close to one side of a telescopic rod of the hydraulic cylinder, the sensor is electrically connected to a main control switch, and when the telescopic rod of the hydraulic cylinder is contracted to a certain length, the sensor can convert mechanical displacement into an electric signal. The utility model solves the technical problem that the working state of the clamping brake in the prior art cannot be detected.

Description

Port crane presss from both sides wheel arresting gear

Technical Field

The utility model relates to the technical field of pinch brakes, in particular to a pinch brake of a port crane.

Background

A brake structure is generally used for braking wheels of heavy hoisting or transferring equipment such as bridge cranes, gantry cranes and the like when clamping wheel brakes, so that the wheels are not influenced by wind power under the condition of stopping.

The brake mode of the pinch brake in the prior art generally clamps the wheels through the pinch clamp so as to prevent the main machine from freely moving along the track direction, thereby achieving the purposes of wind prevention and resisting other external impacts. The clamping brake mainly comprises a power source, a transmission device and clamps, wherein the transmission device is driven by the power source, so that the clamps are driven to work, two sides of the wheels are clamped, and braking is achieved. In the case of normal use of the pinch brake, the pinch brake must be closed when the crane is completely stopped. When the main machine stops, the clamp of the wheel brake automatically clamps the wheel, and when the main machine needs to walk on the rail, the hydraulic device opens the clamp of the wheel brake.

In the implementation process, the inventor finds that at least the following defects exist in the background technology:

the prior art pinch brake can drive the transmission device to act through the power source, but the working state of the pinch brake cannot be detected.

Disclosure of Invention

According to the port crane clamping wheel braking device, the technical problem that the working state of the clamping wheel brake cannot be detected in the prior art is solved.

In order to solve the technical problems, the technical scheme is adopted by the utility model, the port crane clamping wheel braking device comprises a base, wherein the base is connected with a travelling trolley, braking arms are respectively arranged on two sides of the base, a hydraulic cylinder is arranged between the two braking arms, a sensor is arranged on the braking arm which is close to one side of a telescopic rod of the hydraulic cylinder, the sensor is electrically connected to a main control switch, and when the telescopic rod of the hydraulic cylinder is contracted to a certain length, the sensor can convert mechanical displacement into an electric signal.

When the crane stops, the telescopic rod of the hydraulic cylinder is in an elongation state, the wheels are clamped by the clamping wheel braking device, when the clamping wheel braking device is opened, the telescopic rod of the hydraulic cylinder is contracted, and when the telescopic rod is contracted to a certain length, the sensor is positioned at one side of the cylinder body of the hydraulic cylinder and points to the edge of the cylinder body, so that an electric signal is generated, and the opened signal is fed back to the main control switch, so that the detection of the working state of the clamping wheel braking device is realized.

Further, the brake arms are hinged with the base through brake arm connecting pins, two ends of the hydraulic cylinder are respectively hinged with the two brake arms, and when the telescopic rod of the hydraulic cylinder contracts, the two brake arms can rotate around the brake arm connecting pins and loosen wheels of the walking trolley.

Further, the sensor is arranged on the brake arm through a bracket, the bracket is fixed with the brake arm through a fastening bolt, and after the bracket is fixed with the fixed arm, the direction of the sensor is vertical to the axial direction of the hydraulic cylinder.

Further, a strip-shaped hole is formed in the support, the length direction of the strip-shaped hole is consistent with the expansion direction of the hydraulic cylinder, and the support is fixed on the brake arm after being matched with the bolt through the strip-shaped hole; therefore, the position of the bar-shaped hole is pressed by the adjusting bolt, the relative position of the sensor and the brake arm can be adjusted, and when the brake pad is slightly worn, the position of the sensor is adjusted, so that errors can be reduced, and the accuracy is improved.

Further, a brake shoe is arranged at one end, close to the wheels, of the brake arm, the brake shoe is hinged with the brake arm, and a brake pad is fixed on the brake shoe; therefore, when the device is worn, the gasket is replaced, and the maintenance is convenient.

Further, a throttle valve is arranged on the hydraulic cylinder; therefore, the brake-on time of the wheel clamp can be controlled by adjusting the oil return speed.

According to the technical scheme, the utility model has at least the following technical effects or advantages:

1. when the clamping wheel braking device is opened, the telescopic rod of the hydraulic cylinder is contracted, and when the telescopic rod is contracted to a certain length, the sensor is positioned at one side of the cylinder body of the hydraulic cylinder and points to the edge of the cylinder body, so that an electric signal is generated, and the opened signal is fed back to the main control switch, so that the detection of the working state of the clamping wheel braking device is realized.

2. The support is provided with the strip-shaped hole, the length direction of the strip-shaped hole is consistent with the telescopic direction of the hydraulic cylinder, so that the position of the strip-shaped hole is pressed by the adjusting bolt to adjust the relative position of the sensor and the brake arm, and the position of the sensor is adjusted after the brake pad is slightly worn, thereby reducing errors and improving accuracy.

3. Because the throttle valve is arranged on the hydraulic cylinder, the brake-on time of the clamping wheel can be controlled by adjusting the oil return speed.

Drawings

For a clearer description of the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained, without inventive effort, by a person skilled in the art, from these drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the installation of the present utility model with a traveling carriage;

fig. 4 is a side view of fig. 3.

Reference numerals illustrate: 1. the hydraulic device comprises a base, 2, a traveling trolley, 3, a brake arm, 4, a hydraulic cylinder, 5, a sensor, 6, bolt holes, 7, a connecting plate, 8, a brake arm connecting pin, 9, wheels, 10, brake pads, 11, a brake pad, 12, a bracket, 13, a fastening bolt, 14, a bar-shaped hole, 15, a throttle valve, 16 and a support frame.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments in this patent, other embodiments that may be obtained by one of ordinary skill in the art without making any inventive effort are within the scope of this patent.

The utility model discloses a port crane clamping wheel braking device, referring to fig. 1 to 4, which comprises a base 1, wherein the base 1 is connected with a travelling trolley 2, two sides of the base 1 are respectively provided with a braking arm 3, a hydraulic cylinder 4 is arranged between the two braking arms 3, a sensor 5 is arranged on the braking arm 3 close to one side of a telescopic rod of the hydraulic cylinder 4, the sensor 5 is electrically connected to a main control switch, and when the telescopic rod of the hydraulic cylinder 4 is contracted to a certain length, the sensor 5 can convert mechanical displacement into an electric signal.

In this embodiment, referring to fig. 1 and 3, the base 1 of the wheel clamping brake device is provided with a bolt hole 6, the travelling trolley 2 is connected with the base 1 through a support frame 16, the support frame 16 is provided with two mutually perpendicular end faces, one end face of the support frame is fixed with the bolt hole 6 on the base 1 through a bolt, and the other end face of the support frame 16 is fixed with the travelling trolley 2 through a connecting plate 7, so that the device and the travelling trolley 2 are conveniently installed and detached, and later maintenance of the device is convenient.

Further, the brake arms 3 are hinged to the base 1 through brake arm connecting pins 8, two ends of the hydraulic cylinder 4 are respectively hinged to the two brake arms 3, and when the telescopic rod of the hydraulic cylinder 4 stretches or contracts, the two brake arms 3 can rotate around the brake arm connecting pins 8 and clamp the wheels 9 of the walking trolley 2.

More specifically, referring to fig. 1, a brake pad 10 is mounted on an end of the brake arm 3 near the wheel 9, the brake pad 10 is hinged to the brake arm 3, and a brake pad 11 is fixed on the brake pad 10. And the brake pad 11 has an arcuate outer contour, the curvature of the outer contour of the brake pad 11 being in accordance with the curvature of the rim of the wheel 9. Therefore, the brake pad 10 and the edge of the wheel 9 can be ensured to have enough contact surface when the wheel 9 is clamped, and the brake pad 11 is replaced after abrasion, so that the maintenance is convenient.

The working principle of the utility model is as follows:

when the crane is stopped, the telescopic rod of the hydraulic cylinder 4 is in an elongation state, the wheels 9 are clamped by the clamping wheel braking device, when the clamping wheel braking device is opened, the telescopic rod of the hydraulic cylinder 4 is contracted, and when the telescopic rod is contracted to a certain length, the sensor 5 is positioned at one side of the cylinder body of the hydraulic cylinder 4 and points to the edge of the cylinder body, so that an electric signal is generated, and the opened signal is fed back to the main control switch, so that the detection of the working state of the clamping wheel braking device is realized.

In this embodiment, referring to fig. 2, the sensor 5 is mounted on the brake arm 3 through a bracket 12, the bracket 12 is fixed to the brake arm 3 through a fastening bolt 13, and after the bracket 12 is fixed to the brake arm 3, the sensor 5 is oriented perpendicular to the axial direction of the hydraulic cylinder 4. In this embodiment, the bracket 12 is provided with a bar hole 14, the length direction of the bar hole 14 is consistent with the expansion direction of the hydraulic cylinder 4, and the bracket 12 is fixed on the brake arm 3 after being matched with a bolt through the bar hole 14.

The support 12 is provided with the strip-shaped hole 14, and the length direction of the strip-shaped hole 14 is consistent with the expansion direction of the hydraulic cylinder 4, so that the position of the strip-shaped hole 14 is pressed by the adjusting bolt to realize the adjustment of the relative position of the sensor 5 and the brake arm 3, and the position of the sensor 5 is adjusted after the brake pad 11 is slightly worn, thereby reducing errors and improving accuracy.

In this embodiment, referring to fig. 1, a throttle valve 15 is installed on the hydraulic cylinder 4. Therefore, the brake-on time of the wheel clamp can be controlled by adjusting the oil return speed.

In the description of the present utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," "horizontal," and the like, if any, refer to an orientation or positional relationship based on that shown in the drawings, merely to describe the present utility model and do not require that the present utility model be constructed or operated in a particular orientation and therefore should not be construed as limiting the present utility model. "connected" and "connected" in the present utility model are to be understood broadly, and may be, for example, connected or detachably connected; the connection may be direct or indirect through intermediate members, and the specific meaning of the terms may be understood in detail by those skilled in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a harbour hoist presss from both sides wheel arresting gear, including base (1), base (1) link to each other with walking platform truck (2), and brake arm (3) are installed respectively to the both sides of base (1), installs pneumatic cylinder (4) between two brake arms (3), and sensor (5) are installed on brake arm (3) that are close to pneumatic cylinder (4) telescopic link one side, and sensor (5) electricity is connected to master control switch, and after the telescopic link of pneumatic cylinder (4) contracts to certain length, sensor (5) can change mechanical displacement into the signal of telecommunication.

2. The harbour crane pinch roller brake device according to claim 1, characterized in that the brake arms (3) are hinged to the base (1) through brake arm connecting pins (8), two ends of the hydraulic cylinder (4) are hinged to the two brake arms (3) respectively, and when the telescopic rod of the hydraulic cylinder (4) is contracted, the two brake arms (3) can rotate around the brake arm connecting pins (8) and loosen the wheels (9) of the travelling trolley (2).

3. The harbour crane pinch roller brake device according to claim 2, characterized in that a brake shoe (10) is mounted at one end of the brake arm (3) close to the wheel (9), the brake shoe (10) is hinged with the brake arm (3), and a brake pad (11) is fixed on the brake shoe (10).

4. A harbour crane pinch roller brake according to any one of claims 1 to 3, characterized in that the sensor (5) is mounted on the brake arm (3) by means of a bracket (12), the bracket (12) is fixed to the brake arm (3) by means of fastening bolts (13), and after the bracket (12) is fixed to the brake arm (3), the sensor (5) is directed perpendicularly to the axial direction of the hydraulic cylinder (4).

5. The harbour crane clamping wheel braking device according to claim 4, wherein the bracket (12) is provided with a strip-shaped hole (14), the length direction of the strip-shaped hole (14) is consistent with the telescopic direction of the hydraulic cylinder (4), and the bracket (12) is fixed on the braking arm (3) after being matched with a bolt through the strip-shaped hole (14).

6. A harbour crane pinch roller brake according to claim 1, characterized in that the hydraulic cylinder (4) is provided with a throttle valve (15).