阅读说明：本技术 一种可折叠轨行式起重机止挡装置 (Stop device of foldable rail-mounted crane ) 是由 靳慧 焦海涵 丁克勤 王立彬 于 2020-07-23 设计创作，主要内容包括：本发明提供一种可折叠轨行式起重机止挡装置,包括启动装置、滑动固定装置和制动装置,所述启动装置安装在起重机轨道上用于承受起重机轮的压力从而启动制动装置,所述滑动固定装置安装在起重机轨道的末端,所述制动装置与所述滑动固定装置连接用于实现起重机轮的制动。本发明用于起重机在轨道端部的制动,能够实现快速、短距离制动。制作和安装方便,使用寿命长,保证了起重机工作的安全。静止状态下装置可以折叠,安装后整个结构较为美观。(The invention provides a foldable rail-mounted crane stopping device which comprises a starting device, a sliding fixing device and a braking device, wherein the starting device is arranged on a crane rail and used for bearing the pressure of a crane wheel so as to start the braking device, the sliding fixing device is arranged at the tail end of the crane rail, and the braking device is connected with the sliding fixing device and used for realizing the braking of the crane wheel. The invention is used for braking the crane at the end part of the track and can realize quick and short-distance braking. The crane has the advantages of convenient manufacture and installation and long service life, and ensures the safety of the crane in work. The device can be folded under the static state, and the whole structure is more beautiful after installation.)

1. A stopper device for a foldable rail-mounted crane, characterized in that: the braking device comprises a starting device, a sliding fixing device and a braking device, wherein the starting device is arranged on a crane rail and used for bearing the pressure of a crane wheel so as to start the braking device, the sliding fixing device is arranged at the tail end of the crane rail, and the braking device is connected with the sliding fixing device and used for realizing the braking of the crane wheel.

2. The foldable rail-mounted crane stopping device as claimed in claim 1, wherein: the starting device comprises a stabilizing piece arranged on the crane rail, a pressure piece is arranged on the stabilizing piece through a starting spring, and the top of the pressure piece is higher than the lower edge of the crane wheel in a non-braking state.

3. The foldable rail-mounted crane stopping device as claimed in claim 1, wherein: the sliding fixing device comprises a sliding rail arranged at the end of the crane rail, sliding grooves are formed in two sides of the sliding rail respectively, each sliding groove is internally provided with a sliding block A and a sliding block B, and the sliding block A and the sliding block B are connected with the end of the sliding rail through a sliding spring A and a sliding spring B respectively.

4. A foldable trolley line crane stopping device according to claim 3, characterized in that: the sliding track is composed of two L-shaped steels and is fixed on two sides of the end of the crane track through bolts.

5. A foldable trolley line crane stopping device according to claim 3, characterized in that: the braking device comprises two front gear rods, a braking groove is formed in the side wall of each front gear rod, a braking block capable of sliding in the braking groove is installed in each braking groove, and the braking block is connected with the end of each braking groove through a braking spring; one end of the front gear rod, which is close to the starting device, is provided with a wedge-shaped opening for clamping a pressed piece of the starting device, and one end of the front gear rod, which is close to the sliding fixing device, is connected with the sliding block A through a rotating shaft; the brake block is connected with one end of the rear support rod through the rotating shaft, the other end of the rear support rod is connected with the sliding block B through the rotating shaft, the middle of the two front stop rods is connected with the baffle, and the damping sheet is adhered to one side, close to the crane wheel, of the baffle.

6. The foldable rail-mounted crane stopping device as claimed in claim 1 or 2, wherein: the starting device is only provided with one or is respectively provided with one on two sides of the crane track according to the type of the crane.

Technical Field

The invention relates to the technical field of crane rail stopping, in particular to a foldable rail-mounted crane stopping device.

Background

A crane is an essential equipment in industrial production as a device for vertically and horizontally moving a heavy object. In recent years, with the continuous development of industrial technologies, the demand for the operating capacity of cranes has been increasing, and thus the market of large cranes has been rapidly developing. However, the crane is used as an open-air working device, the working site is often in a port or a wharf, sudden gusts of wind are easily generated, and the crane is used as a high-rise structure, has a large windward area and a high center point of wind force action, and is more easily subjected to industrial accidents such as crane damage and the like.

At present, aiming at the safety braking problem of a crane, the related industrial technical field invents a series of crane stopping devices which have the functions of energy dissipation and shock absorption and are arranged at the end of a track of the crane to play a certain role in helping the safety braking of a starter.

The current stopping devices are mainly braked by a rigid stopping device, an elastic stopping device and a slope stopping device. The rigid stopping device is made of rigid materials such as steel, concrete and the like, and can only be suitable for braking the crane running at low speed under the action of low-grade wind, otherwise the crane is easy to unstably overturn; the slope stop device needs to arrange a longer slope at the end of the crane track, the braking distance is long, and meanwhile, if the angle of the slope is too large, the gravity center of the crane is too high, so that the crane is easy to derail. The elastic stopping device is made of elastic materials such as springs or rubber, and plays a role in braking by absorbing kinetic energy of the crane and converting the kinetic energy into elastic energy, so that more and more crane stopping devices adopt the stopping form.

Disclosure of Invention

In order to solve the technical problems of poor braking effect, high cost, complex operation and the like of the crane stopping device, the invention provides the foldable rail-mounted crane stopping device which adopts an elastic stopping mode, consumes energy generated by braking of a crane wheel through a spring and can realize rapid and short-distance braking. The device can be arranged at the end of the crane track in advance and used for braking the crane at the end of the track, is convenient to manufacture and install, has long service life and ensures the safety of the crane in work. The device can be folded under the static state, and the whole structure is more beautiful after installation.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a collapsible rail-mounted formula hoist stop device, includes starting drive, slip fixing device and arresting gear, starting drive installs and is used for bearing the pressure of hoist wheel on the hoist track thereby start braking device, the slip fixing device is installed at the terminal of hoist track, arresting gear with the slip fixing device is connected and is used for realizing the braking of hoist wheel.

The starting device comprises a stabilizing piece arranged on a crane rail, a pressed piece is arranged on the stabilizing piece through a starting spring, and the top of the pressed piece is higher than the lower edge of the crane wheel in a non-braking state.

The foldable rail-mounted crane stopping device comprises a sliding rail arranged at the end of a crane rail, sliding grooves are formed in two sides of the sliding rail respectively, a sliding block A and a sliding block B are arranged in each sliding groove, and the sliding blocks A and B are connected with the end of the sliding rail through sliding springs A and B respectively.

The sliding rail of the foldable rail-mounted crane stopping device is composed of two L-shaped steels and is fixed on two sides of the end of the crane rail through bolts.

The braking device comprises two front stop rods, the side wall of each front stop rod is provided with a braking groove, a braking block capable of sliding in the braking groove is arranged in each braking groove, and the braking block is connected with the end of each braking groove through a braking spring; one end of the front gear rod, which is close to the starting device, is provided with a wedge-shaped opening for clamping a pressed piece of the starting device, and one end of the front gear rod, which is close to the sliding fixing device, is connected with the sliding block A through a rotating shaft; the brake block is connected with one end of the rear support rod through the rotating shaft, the other end of the rear support rod is connected with the sliding block B through the rotating shaft, the middle of the two front stop rods is connected with the baffle, and the damping sheet is adhered to one side, close to the crane wheel, of the baffle.

The starting device is only provided with one or two stopping devices respectively arranged at two sides of the crane track according to the type of the crane.

Has the advantages that:

compared with the traditional braking scheme, the stopping device consumes the kinetic energy generated by braking the crane wheel through the spring and converts the kinetic energy into the elastic energy, and can play a good stopping effect. The required braking distance and the braking time are short, and emergency braking can be realized. When braking, the gravity centers of the wheels of the crane are always at the same height, so that the derailment and overturn of the crane cannot be caused. The whole stop buffer device is simple in structure, convenient to process and install, and long in service life, and damping sheets and springs required by braking can be replaced at any time. The stop device can be folded under the static state, can be automatically started during braking, does not need other external power sources, does not need manual mechanical assistance, and has wide application prospect.

Drawings

Fig. 1 is a schematic view showing the overall construction of a stopper device for a foldable rail-mounted crane according to the present invention.

Fig. 2 is an overall structural front view of the stopper device of the foldable rail-mounted crane according to the present invention.

Fig. 3 is a side view showing the overall construction of the stopper device for a foldable rail-mounted crane according to the present invention.

Fig. 4 is a schematic view of an actuating device of the stopper device of the foldable rail-mounted crane according to the present invention.

Fig. 5 is a schematic view of a slide fixing device of the stopper device of the foldable rail-mounted crane according to the present invention.

Fig. 6 is a schematic view of a brake device of the stopper device for a foldable rail-mounted crane according to the present invention.

Fig. 7 is a schematic view illustrating an operation state of the stopper device of the foldable rail-mounted crane according to the present invention.

Fig. 8 is a front view showing an actuated state of the stopper device of the foldable rail-mounted crane according to the present invention.

Fig. 9 is a schematic view illustrating a stopping state of the stopper device for the foldable rail-mounted crane according to the present invention.

Fig. 10 is a front view showing a stopper state of the foldable rail-mounted crane according to the present invention.

In the figure: the crane comprises a stabilizing piece 1, a starting spring 2, a pressure receiving piece 3, a sliding rail 4, a sliding groove 5, a sliding block A61, a sliding block B62, a sliding spring A71, a sliding spring B72, a bolt 8, a front stop lever 9, a rear support lever 10, a baffle 11, a damping piece 12, a rotating shaft 13, a brake block 14, a brake spring 15, a wedge-shaped groove 16, a brake groove 17, a crane wheel 18 and a crane rail 19.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by persons skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the stopping device of the foldable rail-mounted crane of the present invention is mounted on the end of a crane rail 19, and is used to stop the crane wheel 18.

The stabilizing piece 1 is fixed on one side of a crane track 19, and the compression piece 3 is connected with the stabilizing piece 1 through two starting springs 2. The slide rail 4 is fixed on the crane rail 19 by a bolt 8, and the slide block a61 and the slide block B62 are caught in the slide groove 5 and connected with the slide rail 4 by a slide spring a71 and a slide spring B72. One end heads of the front stop lever 9 and the rear stay bar 10 are respectively connected with a sliding block A61 and a sliding block B62 clamped in the sliding groove 5 through a rotating shaft 13, and the other end head of the rear stay bar 10 is connected with a brake block 14 clamped in the brake groove 17 through the rotating shaft 13; a baffle plate 11 is fixed in the middle of the front stop lever 9, and a damping sheet 12 is adhered to one side of the baffle plate 11, which is close to the crane wheel.

The stabilizing piece 1 is a rectangular steel plate, is fixed on one side of the crane track 19, and is mainly used for placing the starting spring 2 and the compression piece 3 and bearing the vertical pressure of the crane wheel 18.

The starting spring 2 is two high-strength springs, which are mainly used for connecting the stabilizing sheet 1 and the pressure receiving sheet 2 and deform when being pressed by the crane wheel 18 so as to start the whole stopping device.

The pressure receiving sheet 3 is a rectangular steel sheet and mainly functions to directly bear the vertical pressure of the crane wheel 18 and to jointly act with the starting spring 2 to start the whole stopping device. In the folded state, the compression plate 3 is in a horizontal state, and the top of the compression plate 3 is higher than the lower edge of the crane wheel 18. One side of the pressed sheet 3 is wedged in the wedge-shaped groove 16 of the front stop lever 9, so that the whole stop device is in a folded state. When the crane wheel 18 contacts the pressed sheet 3, the starting spring 2 is deformed, the pressed sheet 3 inclines and is separated from the front stop lever 9, and the whole stop device is started.

The sliding rail 4 is two pieces of L-shaped steel and is fixed at the end of the crane rail 19 through bolts 8, and the main function of the sliding rail is to fix the whole stopping device at the end of the crane rail 19.

The sliding groove 5 is opened on the side of the sliding rail 4, and mainly functions to allow the sliding block a61 and the sliding block B62 to freely slide in the sliding groove 5 along the running direction of the crane wheel 18, but cannot be separated from the sliding rail 4.

Sliding spring a71 and sliding spring B72 are connected to sliding rail 4, sliding block a61 and sliding block B62, and their main function is to dissipate energy during the stopping process of crane wheel 18. In the folded state, the tension of the sliding spring A71, the sliding spring B72 and the brake spring 15 are in a balanced state; in the stopper state, the slide spring a is in a stretched state, and the slide spring B is in a compressed state.

The front stop lever 9 is two steel long rods, the rear support lever 10 is also two steel long rods, the front stop lever 9 and the rear support lever 10 are both installed on the inner side of the sliding rail 4, and the main function of the front stop lever is to form a stable triangular support structure to stop the crane wheel 18 in a stop state.

The shield 11 is a rectangular plate made of steel and is mainly used to directly bear the impact of the crane wheel 18.

The damping sheet 12 is adhered to the side of the baffle plate 11 close to the crane wheel 18, and mainly has the function of preventing the whole stopping device from being damaged by the excessive impact force of the crane wheel 18.

The rotating shaft 13 is a steel pin shaft and mainly used for connecting a stressed component and a force transmission component, so that the front stop lever 9 and the rear support lever 10 can rotate around the rotating shaft 13 but cannot be separated from the rotating shaft 13.

The brake spring 15 is used for connecting the brake block 14 and the front stop lever 9, and mainly plays a role in dissipating energy during the stopping process of the crane wheel 18 and preventing the front stop lever 9 from being damaged by the impact force of the rear stay 10 when the whole device is started.

The wedge-shaped groove 16 is arranged on one side of the front stop lever 9 close to the starting device and mainly used for clamping the pressed sheet 3.

The braking groove 17 is formed in the side surface of the front bar 9, and mainly functions to allow the brake shoe 14 to freely slide in the braking groove 17 in the longitudinal direction of the front bar 9 but not to be separated from the front bar 9.

The mounting method of the present invention is described in detail below with reference to fig. 1 to 6:

1. all components of the invention are prefabricated in factories and only need to be spliced and installed on site. The damping plate 12, the starting spring 2, the sliding spring A71, the sliding spring B72 and the braking spring 15 which are selected by the invention are the existing industrialized products, and the damping plate can be selected according to the requirements during installation.

2. The stabilizing piece 1 is welded on one side of the crane track 19 in advance, one end of the compression piece 3 is provided with a wedge-shaped opening in advance, and then the stabilizing piece 1 and the compression piece 3 are connected by the starting spring 2. And finishing the installation of the starting device.

3. A slide groove 5 is formed in advance in one side of the slide rail 4, a slide block a61 and a slide block B62 are installed in the slide groove 5, then the slide block a61 and the slide block B62 are connected to the slide rail 4 by a slide spring a71 and a slide spring B72, and the slide rail 4 is fixed to both sides of the crane rail 19 by bolts 8. Complete the installation of the sliding fixture

4. A brake groove 17 is formed in advance on the front bar 9 side, a brake shoe 14 is mounted in the brake groove 17, and the brake shoe 14 is connected to the front bar 9 by a brake spring 15. The baffle plate 11 is welded in the middle of the front stop lever 9 in advance, and a damping sheet 12 is adhered to one side of the baffle plate 11 close to the crane wheel 18. One end of the front gear lever 9 close to the sliding fixing device is connected with a sliding block A61 through a rotating shaft 13; one end of the rear stay bar 10 is connected with the brake block 14 in the brake groove 17 by the rotating shaft 13, the other end of the rear stay bar 10 is connected with the sliding block B62 by the rotating shaft 13, and the wedge-shaped opening at one end of the pressed sheet 3 is clamped into the wedge-shaped groove 16 of the front stop lever 9, so that the whole stop device is in a folded state. So far, the installation of the whole device is completed.

The stop principle of the present invention is explained in detail below with reference to fig. 7 to 10:

1. under normal conditions, namely under the non-braking state, the starting spring 2 is in a stable state, the pressed sheet 3 is in a horizontal state, the top of the pressed sheet 3 is higher than the lower edge of the crane wheel 18, one side of the pressed sheet 3 is in a wedge-shaped clamping manner in the wedge-shaped groove 16 of the front stop lever 9, the tension of the sliding spring A71, the sliding spring B72 and the brake spring 15 is in a balanced state, so that the front stop lever 9 is kept in a stress balance state in the horizontal direction and is in a static state, and the whole stop device is in a folded state. At this time, the braking spring 15 is in a stretching state and is used for pulling the end of the rear stay bar 10 to move towards the end of the front stop lever 9 after being started to form a stable triangular supporting structure.

When the crane wheel 18 contacts the pressed sheet 3, the starting spring 2 is deformed, the pressed sheet 3 inclines and is separated from the wedge-shaped groove 16 of the front stop lever 9, and the whole stop device is started. The brake spring 15 in the stretched state pulls the end of the rear stay 10 to move towards the front stop lever end 9, and the whole stop device is lifted. The crane wheel 18 moves further towards the stop device and contacts the damper 12 on the damper 11 in the middle of the front stop lever 9, so that the stop device is further forced to rise, and finally the front stop lever 9 and the rear stay 10 form a stable triangular support structure. The sliding spring a71 and the sliding spring B72 are pushed by the crane wheel 18, the sliding spring a71 is continuously stretched, the sliding spring B72 is continuously compressed, the kinetic energy generated by braking the crane wheel 18 is continuously consumed as the elastic energy of the spring, and finally the crane wheel 18 stops moving. And finishing the whole stopping process.

The above-described specific implementation operation method, the technical solutions and the advantages of the present invention are further described in detail, it should be understood that the above-described specific implementation mode of the present invention should be included in the scope of the present invention, and any modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principle of the present invention, should be made.