Electric hydraulic windproof iron wedge

Abstract

An electric hydraulic windproof iron wedge comprises a support plate used for being installed on a door locomotive frame, an execution arm is installed on the support plate, an iron wedge piece used for being matched with a door locomotive wheel is hinged to the end portion of one end of the execution arm, and electric hydraulic driving equipment used for driving the execution arm to drive the iron wedge piece to conduct swinging operation is installed on the support plate. The other end of the execution arm is in transmission connection with the driving end of the electric hydraulic driving equipment; the iron wedge piece comprises an upper wedge block and a lower wedge block which are used for being matched with each other, the upper wedge block is hinged to the execution arm, the top of the lower wedge block is connected with the bottom of the upper wedge block through a plurality of supporting springs, a plurality of limiting protrusions are further arranged at the bottom of the upper wedge block, and limiting grooves matched with the limiting protrusions are formed in the top of the lower wedge block. One side of the upper wedge block and one side of the lower wedge block are respectively provided with an arc-shaped attaching surface for tightly attaching wheels of the door locomotive. The device can be tightly attached to the traveling wheel of the portal crane all the time after being in place, so that the safety and the stability of the portal crane are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry crane wheel brakes, in particular to an electric hydraulic windproof iron wedge. Background Art

[0002] At present, large and medium-sized outdoor gantry cranes and port loading and unloading machinery are generally equipped with wind-proof safety devices - wind-proof iron wedges. This design aims to effectively resist wind in both working and non-working states, and ensure the stability and safety of lifting equipment under severe weather conditions.

[0003] Although there are many windproof wedges with different structures on the market, a common problem is that these wedges will inevitably experience wear as the usage time accumulates. Specifically, long-term use and frequent operation will cause the key component of the windproof wedge, the wedge, to gradually wear out. This wear will cause the wedge to have gaps or incomplete contact when it needs to be put into place and fit tightly with the walking wheel of the gantry crane. This incomplete fit will directly affect the effect of windproof braking, reduce the stability and safety of the equipment under strong wind conditions, and increase potential safety risks. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an electric hydraulic windproof iron wedge which can always fit closely with the travel wheel of the gantry crane after being put into position to ensure the safety and stability of the gantry crane.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions. The utility model is an electric hydraulic windproof iron wedge, including a support plate for installation on a gantry locomotive frame, an actuator arm is installed on the support plate, an iron wedge piece for cooperating with a gantry locomotive wheel is hinged at one end of the actuator arm, an electric hydraulic driving device for driving the actuator arm to drive the iron wedge piece to swing is installed on the support plate, and the other end of the actuator arm is transmission-connected to the driving end of the electric hydraulic driving device; the iron wedge piece includes an upper wedge block and a lower wedge block for cooperating with each other, the upper wedge block is hinged on the actuator arm, the top of the lower wedge block is connected to the bottom of the upper wedge block through a number of supporting springs, a number of limiting protrusions are also arranged at the bottom of the upper wedge block, a limiting groove cooperating with the limiting protrusions is arranged at the top of the lower wedge block, and an arc-shaped fitting surface for tightly fitting the gantry locomotive wheel is arranged on one side of the upper wedge block and the lower wedge block.

[0006] The technical problem to be solved by the utility model can also be further achieved through the following technical scheme. For the above-mentioned electric hydraulic windproof wedge, the electric hydraulic driving device is an electric hydraulic pusher, which is hinged on the support plate, and the actuator arm is rotatably installed on the support plate and is hinged to the push rod of the electric hydraulic pusher through a connecting rod mechanism.

[0007] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned electric-hydraulic windproof iron wedge, a limit bolt is also screwed on the actuating arm, and a limit spring for cooperating with the upper wedge block is installed on the limit bolt.

[0008] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned electric-hydraulic windproof iron wedge, a limit notch for cooperating with the upper wedge block is provided on the lower wedge block, and a limit stop block for cooperating with the limit notch is provided on the upper wedge block.

[0009] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned electric-hydraulic windproof iron wedge, an auxiliary groove is further provided at the bottom of the lower wedge block, and auxiliary rollers are installed in the auxiliary groove through a plurality of auxiliary springs.

[0010] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned electric-hydraulic windproof iron wedge, a positioning spring for cooperating with the actuating arm is also installed on the support plate.

[0011] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned electric-hydraulic windproof iron wedge, the outer surface of the lower wedge block on the periphery of the auxiliary groove is set as an uneven rough surface.

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

[0013] 1. High-efficiency wind prevention and safety improvement: The electric-hydraulic windproof iron wedge realizes fast and accurate swinging operation through an electric-hydraulic driving device, and can accurately insert the iron wedge under the door machine wheel in a short time, effectively preventing the sliding or accidental movement of the door machine caused by wind force or other external forces, and greatly improving the stability and safety of the door machine under bad weather conditions;

[0014] 2. Adaptive adjustment and buffer protection: The upper wedge block and the lower wedge block are connected by a support spring in the design. It not only allows the iron wedge to have a certain adaptive adjustment ability when contacting the wheel to adapt to wheels of different sizes and shapes, but also provides a buffering effect when the wheel contacts the iron wedge, reducing the impact damage to the wheel and the iron wedge itself, extending the service life, and at the same time protecting the door machine and the wheel from unnecessary damage;

[0015] 3. Stable structure and convenient operation: The iron wedge adopts the combination design of upper wedge block and lower wedge block. The close cooperation between the limiting protrusion and the limiting groove ensures the stability and reliability of the iron wedge during operation. At the same time, the whole structure is installed on the support plate with compact structure, which is convenient for installation and maintenance on the gantry frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Reference Figure 1 , an electric hydraulic windproof iron wedge, comprising a support plate 1 for installation on a gantry locomotive frame, an actuator arm 2 is installed on the support plate 1, an iron wedge piece for cooperating with a gantry locomotive wheel is hinged at one end of the actuator arm 2, an electric hydraulic driving device 3 for driving the actuator arm 2 to drive the iron wedge piece to swing is installed on the support plate 1, the other end of the actuator arm 2 is connected to the driving end of the electric hydraulic driving device 3, so that the electric hydraulic driving device 3 is used to drive the actuator arm 2 to drive the iron wedge piece to fit closely to the gantry locomotive wheel, so as to ensure that the gantry locomotive can remain stable under strong wind or other external forces, prevent it from moving or tipping over, thereby ensuring the safety and efficiency of the operation, specifically:

[0019] The support plate 1 serves as the base of the entire device and is used to be firmly installed on the gantry frame to provide stable support for other components; the actuator arm 2 is rotatably installed on the support plate 1, one end of which is hinged to the iron wedge, and the other end is transmission-connected to the driving end of the electric hydraulic drive device 3, so that when the electric hydraulic drive device 3 is started, it can drive the actuator arm 2 to swing, thereby driving the iron wedge to move; the electric hydraulic drive device 3 is used to provide power for the swing of the actuator arm 2, and has the characteristics of rapid response and strong bearing capacity. Preferably, the electric hydraulic drive device 3 is an electric hydraulic pusher, which is hinged on the support plate 1, and the actuator arm 2 is rotatably installed on the support plate 1 and is hinged to the push rod of the electric hydraulic pusher through a connecting rod mechanism;

[0020] The iron wedge is a key part. The iron wedge includes an upper wedge block 4 and a lower wedge block 5 which are used to cooperate with each other. The upper wedge block 4 is hinged on the execution arm 2. The top of the lower wedge block 5 is connected to the bottom of the upper wedge block 4 through a number of support springs 6, so that the iron wedge can have a certain buffer and adaptability when subjected to external forces, better fit the gantry crane wheels, and there will be no gaps or incomplete contacts after long-term use. At the same time, a number of limit protrusions 7 are provided at the bottom of the upper wedge block 4, and limit grooves matching the limit protrusions 7 are provided at the top of the lower wedge block 5 to ensure that the lower wedge block 5 can remain stable during the swinging process and will not fall off or shift;

[0021] Preferably, a limit notch 15 for cooperating with the upper wedge block 4 is provided on the lower wedge block 5, and a limit stop 16 matching the limit notch 15 is provided on the upper wedge block 4. The cooperation between the limit stop 16 and the limit notch 15 allows the upper wedge block 4 to swing within a certain range. An auxiliary groove 13 is also provided at the bottom of the lower wedge block 5. An auxiliary roller 12 is installed in the auxiliary groove 13 through a number of auxiliary springs 11. When the iron wedge contacts the gantry crane wheels, the auxiliary roller 12 can provide additional support and sliding effects, reducing friction and wear. Secondly, the outer surface of the lower wedge block 5 on the periphery of the auxiliary groove 13 is set as an uneven rough surface, increasing the friction with the ground and further improving the stability of the device.

[0022] In order to better achieve the close fit between the upper wedge block 4 and the lower wedge block 5 and the gantry crane wheels, arc-shaped fitting surfaces 8 for closely fitting the gantry crane wheels are provided on one side of both the upper wedge block 4 and the lower wedge block 5.

[0023] In order to further enhance the stability and adaptability of the iron wedge, a limit bolt 9 is also screwed on the execution arm 2, and a limit spring 10 cooperating with the upper wedge block 4 is installed. In this way, when the iron wedge is subjected to external forces, the limit spring 10 can provide additional supporting force to ensure that the iron wedge can closely fit on the gantry crane wheels.

[0024] A positioning spring 14 cooperating with the execution arm 2 is also installed on the support plate 1, so that initially, under the action of the positioning spring 14, the iron wedge is in the positioned state, and only after the electro-hydraulic drive device 3 is powered on and operates, the iron wedge is pulled away from the gantry crane wheels. In this way, in the subsequent power-off situation, when the execution arm 2 loses the pulling force of the electro-hydraulic drive device 3, the iron wedge will be in the positioned state under the action of the positioning spring 14, closely adhering to the gantry crane wheels to ensure safety.

[0025] During use, first install this windproof iron wedge at the wheels of the gantry crane through the support plate 1 and adjust the position of the iron wedge according to the actual situation;

[0026] Power-on state: When the electro-hydraulic pusher is powered on, its push rod quickly rises, and through the linkage mechanism and the actuator arm 2, the iron wedge is lifted, enabling the crane to work properly;

[0027] Power-off state: When the electro-hydraulic pusher is powered off, the push rod descends under the action of the positioning spring 14, and through the linkage mechanism and the actuator arm 2, the iron wedge is placed on the track, making it close to the portal crane wheels. In this way, in the event of a sudden storm, the iron wedge can wedge the portal crane wheels, playing a safety protection role.

Claims

1. An electric hydraulic windproof iron wedge, characterized in that: It includes a support plate for installation on a gantry locomotive frame, an actuator arm is installed on the support plate, an iron wedge for cooperating with the gantry locomotive wheel is hinged at one end of the actuator arm, an electric hydraulic drive device for driving the actuator arm to drive the iron wedge to swing is installed on the support plate, and the other end of the actuator arm is transmission-connected to the drive end of the electric hydraulic drive device; the iron wedge includes an upper wedge block and a lower wedge block for cooperating with each other, the upper wedge block is hinged on the actuator arm, the top of the lower wedge block is connected to the bottom of the upper wedge block through a number of supporting springs, a number of limiting protrusions are also arranged at the bottom of the upper wedge block, a limiting groove cooperating with the limiting protrusions is arranged at the top of the lower wedge block, and an arc-shaped fitting surface for tightly fitting the gantry locomotive wheel is arranged on one side of the upper wedge block and the lower wedge block.

2. The electric hydraulic windproof iron wedge according to claim 1 is characterized in that: The electro-hydraulic driving device is an electric hydraulic pusher, which is hinged on a support plate. The actuator arm is rotatably mounted on the support plate and is hinged to a push rod of the electric hydraulic pusher through a connecting rod mechanism.

3. The electric hydraulic windproof iron wedge according to claim 1 is characterized in that: A limit bolt is also screwed onto the actuator arm, and a limit spring for cooperating with the upper wedge block is installed on the limit bolt.

4. The electric hydraulic windproof iron wedge according to claim 1 or 3, characterized in that: The lower wedge block is provided with a limiting notch for cooperating with the upper wedge block, and the upper wedge block is provided with a limiting stopper cooperating with the limiting notch.

5. The electric hydraulic windproof iron wedge according to claim 4 is characterized in that: An auxiliary groove is also arranged at the bottom of the lower wedge block, and an auxiliary roller is installed in the auxiliary groove through a plurality of auxiliary springs.

6. The electric hydraulic windproof iron wedge according to claim 1 is characterized in that: A landing spring cooperating with the actuator arm is also installed on the support plate.

7. The electric hydraulic windproof iron wedge according to claim 5 is characterized in that: The outer surface of the lower wedge block on the peripheral side of the auxiliary groove is set as an uneven rough surface.

Images