Loading arm liquid receiving device

Abstract

The utility model discloses a liquid receiving device for a loading arm, which belongs to the technical field of loading arms and comprises a guide frame fixed on a vertical pipe of the loading arm and a telescopic driving mechanism mounted on the guide frame and capable of axially telescoping relative to the vertical pipe of the loading arm, and a liquid receiving mechanism is mounted at the bottom of the telescopic driving mechanism through a hinge shaft. A warping plate structure is formed between the liquid receiving mechanism and the telescopic driving mechanism through a hinge shaft; the telescopic driving mechanism drives the liquid receiving mechanism to automatically enter a liquid discharging station and a liquid receiving station, manual pouring and recycling are not needed, additional liquid level detection equipment does not need to be additionally arranged, the use cost is reduced, in addition, the device structure is effectively simplified based on a warping plate structure, and the overall size of the device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of loading crane pipe, especially relates to a loading crane pipe liquid receiving device. BACKGROUND

[0002] The crane pipe is loading and unloading equipment in the fluid loading and unloading process of petrochemical industry, also called fluid loading and unloading arm, and is movable equipment for transmitting liquid medium between train, tank car and stack storage pipeline.

[0003] At present, the liquid bucket needs to be manually hung below the vertical pipe after the crane pipe loading is completed to prevent liquid dripping, which not only has high technical requirements for personnel, but also has many safety hazards caused by human factors, for this, the utility model patent with the authorization announcement number CN 218145853 U discloses a vertical pipe residual liquid automatic collector, mainly including a fixed hanger for the vertical pipe and a driving pneumatic cylinder installed on the fixed hanger to drive the vertical pipe to extend and retract, a driving mechanism is arranged on the fixed hanger, and the driving mechanism and the driving pneumatic cylinder are electrically connected through a sensor; the driving mechanism is connected with a circumferentially rotating connecting rod, and a liquid receiving bucket for collecting residual liquid dripping from the vertical pipe is arranged on the connecting rod; the driving pneumatic cylinder transmits the work after the vertical pipe is reset to the driving mechanism through the sensor, after the driving mechanism drives the connecting rod to drive the liquid receiving bucket to rotate circumferentially to the vertical pipe, the liquid receiving bucket is used to receive residual liquid adhered to the outer wall of the vertical pipe or residual liquid left after the liquid conveyed in the vertical pipe, the problem that the residual liquid left in and outside the vertical pipe flows down and scatters on the ground or the loading platform during the resetting process of the vertical pipe is solved, environmental pollution and oil waste are caused, the scheme can realize the purpose of automatically hanging the residual liquid collector at the bottom of the vertical pipe, but it also has the following deficiencies: (1) since the liquid receiving bucket is connected with the vertical pipe in a horizontal rotation mode, the horizontal space occupied by the vertical pipe residual liquid automatic collector is large; (2) the residual liquid in the liquid receiving bucket needs to be manually recovered in real time, which reduces the automation performance and increases the additional monitoring cost.

[0004] For this, the application provides a loading crane pipe liquid receiving device which is simple in structure, convenient to operate and low in use cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a loading crane pipe liquid receiving device, and aims at solving the problems of large space occupation and high use cost of the existing crane pipe liquid receiving device.

[0006] In order to solve the above problems, the present application provides a loading crane pipe liquid receiving device, which comprises a guide frame fixed on a crane pipe vertical pipe and a telescopic driving mechanism installed on the guide frame and capable of extending and retracting axially relative to the crane pipe vertical pipe, the bottom of the telescopic driving mechanism is installed with a liquid receiving mechanism through a hinge shaft, and the liquid receiving mechanism and the telescopic driving mechanism form a hinged plate structure through the hinge shaft; when the telescopic driving mechanism drives the liquid receiving mechanism to be located at a liquid releasing station, the liquid receiving mechanism is located at one side of the crane pipe vertical pipe and swings around the hinge shaft to be in an inclined state, and when the telescopic driving mechanism drives the liquid receiving mechanism to be located at a liquid receiving station, the liquid receiving mechanism can swing around the hinge shaft and be located directly below the bottom of the crane pipe vertical pipe.

[0007] As a preferred scheme of the present application, the liquid receiving mechanism comprises a liquid receiving groove and a counterweight, the liquid receiving groove comprises a liquid receiving end and a non-liquid receiving end, the counterweight is fixed on the non-liquid receiving end of the liquid receiving groove, and the counterweight and the liquid receiving end of the liquid receiving groove are located at two ends of the hinge shaft respectively, and the weight of the counterweight is greater than the weight of the liquid receiving end.

[0008] As a preferred scheme of the present application, the size of the liquid receiving end is greater than the size of the bottom of the crane pipe vertical pipe.

[0009] As a preferred scheme of the present application, the guide frame comprises a mounting base and a guide rod, the telescopic driving mechanism is fixed on the mounting base, and the guide rod is installed on the mounting base and located at the outer periphery of the telescopic driving mechanism.

[0010] As a preferred scheme of the present application, the guide rod is a straight optical axis, which is installed on the mounting base through a linear bearing and is hinged with the liquid receiving mechanism at the bottom end extending out of the linear bearing, so as to move up and down synchronously with the liquid receiving mechanism.

[0011] As a preferred scheme of the present application, a linkage plate is arranged between the mounting base and the liquid receiving mechanism, which serves as an intermediate connecting plate between the liquid receiving mechanism and the telescopic driving mechanism and the straight optical axis.

[0012] As a preferred scheme of the present application, a magnetic proximity switch is arranged at the initial end and the terminal end of the telescopic stroke of the telescopic driving mechanism respectively, and a magnet corresponding to the magnetic proximity switch is arranged on the telescopic driving mechanism.

[0013] As a preferred scheme of the present application, the telescopic driving mechanism is a pneumatic cylinder.

[0014] As a preferred scheme of the present application, the guide frame is fixed on the crane pipe vertical pipe through a hoop.

[0015] As a preferred scheme of the present application: comprising a control unit, the control unit at least comprises a controller and a liquid receiving solenoid valve and a liquid discharging solenoid valve for controlling the action of the telescopic driving mechanism.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The device comprises a guide frame fixed on the crane pipe vertical pipe and a telescopic driving mechanism installed on the guide frame and capable of axially extending and retracting relative to the crane pipe vertical pipe, the bottom of the telescopic driving mechanism is provided with a liquid receiving mechanism through a hinged shaft, and the liquid receiving mechanism and the telescopic driving mechanism form a hinged plate structure through the hinged shaft; when the telescopic driving mechanism drives the liquid receiving mechanism to be located at a liquid discharging station, the liquid receiving mechanism is located at one side of the crane pipe vertical pipe and swings around the hinged shaft to be in an inclined state, so that residual liquid flows into the pouring opening along the outer wall of the crane pipe vertical pipe, and automatic pouring of the residual liquid is realized; when the telescopic driving mechanism drives the liquid receiving mechanism to be located at a liquid receiving station, the liquid receiving mechanism can swing around the hinged shaft and be located directly below the bottom of the crane pipe vertical pipe to receive the residual liquid from the outer wall and the inside of the crane pipe vertical pipe, and automatic receiving of the residual liquid is realized; as can be seen, the liquid receiving mechanism forming the hinged plate structure with the telescopic driving mechanism can be automatically aligned at the bottom of the crane pipe vertical pipe to receive the residual liquid from the outer wall and the inside of the crane pipe vertical pipe under the driving of the telescopic driving mechanism, and can be automatically inclined to pour the received residual liquid, so that manual pouring for recovery is not needed, and additional liquid level detection equipment is not needed, thereby reducing the use cost, improving the automatic performance of residual liquid treatment, and replacing the traditional rotating structure with the hinged plate structure to effectively simplify the device structure and reduce the overall size of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A front view structural schematic diagram of the truck loading crane pipe liquid receiving device is provided.

[0019] Figure 2 A side view structural schematic diagram of the truck loading crane pipe liquid receiving device is provided.

[0020] Figure 3 A use state schematic diagram of the truck loading crane pipe liquid receiving device is provided.

[0021] REFERENCE NUMERALS

[0022] 1 - guide rod; 2 - telescopic driving mechanism; 3 - linear bearing; 4 - mounting base; 5 - crane pipe vertical pipe; 6 - hoop turn; 7 - counterweight; 8 - liquid receiving groove; 9 - magnetic proximity switch; 10 - linkage plate; 11 - hinged shaft. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with specific implementation and by referring to the drawings. It should be emphasized that the following description is only exemplary and not used as a limitation on the scope and application of the utility model.

[0024] As Figure 1 As shown in the figure, the device contains the guide frame fixed on the crane pipe downpipe 5 and the telescopic drive mechanism 2 installed on the guide frame and can be axially telescopic relative to the crane pipe downpipe 5, the bottom of the telescopic drive mechanism 2 is installed with the liquid receiving mechanism through the hinged shaft 11, the liquid receiving mechanism and the telescopic drive mechanism 2 form a flap structure through the hinged shaft 11, it can be understood that the two ends of the liquid receiving mechanism should exist weight difference, under the action of the weight difference, the two ends of the liquid receiving mechanism can swing up and down with the hinged shaft 11 as the center; when the telescopic drive mechanism 2 drives the liquid receiving mechanism to move away from the bottom of the crane pipe downpipe 5 and enters the liquid pouring station, the liquid receiving mechanism is inclined under the cooperation of the crane pipe downpipe 5 and the hinged shaft 11 and then automatically pours out the residual liquid in it, the outflowing residual liquid enters the pouring opening along the outer wall of the crane pipe downpipe 5 to realize recovery, specifically, the end of the liquid receiving mechanism in contact with the crane pipe downpipe 5 is resisted by the crane pipe downpipe 5 to swing with the hinged shaft 11 and then forms a height difference relative to the other end; when the telescopic drive mechanism 2 drives the liquid receiving mechanism to move close to the bottom of the crane pipe downpipe 5 and enters the liquid receiving station, the liquid receiving mechanism can swing with the hinged shaft 11 as the center and then be located directly below the bottom of the crane pipe downpipe 5 to realize the purpose of receiving the residual liquid on the outer wall and the inner wall of the crane pipe downpipe 5.

[0025] The telescopic drive mechanism 2 is any one of pneumatic cylinder, hydraulic cylinder or electric cylinder, and the pneumatic cylinder is preferred in the embodiment.

[0026] As can be seen from the above, in the loading crane pipe liquid receiving device, the liquid receiving mechanism forming the flap structure with the telescopic drive mechanism 2 can not only automatically enter the liquid receiving station to realize receiving the residual liquid from the outer wall and the inner wall of the crane pipe downpipe 5, but also automatically enter the liquid pouring station to pour out the received residual liquid without manual pouring and recovery, and without adding additional liquid level detection equipment, which reduces the use cost and improves the automatic performance of residual liquid treatment. In addition, in the execution process of the present scheme, the telescopic drive mechanism 2 only needs to move in the vertical direction to drive the liquid receiving mechanism to automatically swing based on the flap structure without rotating in the horizontal direction, which simplifies the device structure and reduces the overall volume of the device.

[0027] The liquid receiving mechanism comprises a liquid receiving groove 8 and a counterweight 7. The liquid receiving groove 8 comprises a liquid receiving end and a non-liquid receiving end. It can be understood that the size of at least the liquid receiving end should be adapted to the bottom of the vertical pipe 5. In the embodiment, the size of the liquid receiving end is preferably greater than the size of the bottom of the vertical pipe 5, so as to facilitate safe and effective receiving of residual liquid from the outer wall of the vertical pipe 5 and the inner tube. It can be understood that the shape of the liquid receiving groove can be designed as required. In the embodiment, the liquid receiving groove is preferably in the shape of a boat.

[0028] Specifically, when the telescopic driving mechanism 2 drives the liquid receiving mechanism away from the bottom of the vertical pipe 5 into the liquid releasing position, the end of the liquid receiving end in contact with the vertical pipe 5 is resisted by the vertical pipe 5, so that the current weight (the sum of the weight of the liquid receiving end itself and the resistance) is greater than the weight of the counterweight 7. At this time, the liquid receiving groove 8 is inclined, as shown in FIG. 4. Figure 2 When the telescopic driving mechanism 2 drives the liquid receiving mechanism close to the bottom of the vertical pipe 5 until the liquid receiving end is not resisted by the vertical pipe 5 into the liquid receiving position, in this state, since the weight of the counterweight 7 is greater than the weight of the liquid receiving end, under the action of the counterweight 7, the liquid receiving groove 8 starts to rotate around the hinge shaft 11 until the liquid receiving end is in close contact with the bottom of the vertical pipe 5, as shown in FIG. 5. Figure 3 As can be seen, the present scheme comprises a liquid receiving groove 8 and a counterweight 7 cooperating with a hinge shaft 11 to form a flap structure. The use of the flap mode instead of the existing horizontal rotation mode can significantly simplify the design structure and use procedure of the liquid receiving mechanism, and improve the convenience and automation performance of the liquid receiving device.

[0029] The guide frame comprises a mounting base 4 and a guide rod 1. The mounting base 4 is fixed to the vertical pipe 5 by the hoop 6. In the embodiment, the mounting base 4 is mounted at a position close to the middle of the vertical pipe 5. The telescopic driving mechanism 2 is fixed to the mounting base 4. The guide rod 1 is mounted on the mounting base 4 and located at the outer periphery of the telescopic driving mechanism 2. The guide rod 1 can constitute a fixing frame of the telescopic driving mechanism 2 to limit and fix the telescopic driving mechanism 2, ensuring stable operation.

[0030] The guide rod 1 is a straight optical axis which is installed on the mounting base 4 through a linear bearing 3 and whose bottom end extends out of the linear bearing 3 to be hinged with the liquid receiving mechanism to move up and down synchronously with the liquid receiving mechanism. Specifically, in the embodiment, the downward movement of the straight optical axis constitutes a limiting frame of the transmission shaft of the telescopic driving mechanism 2. The limiting frame moves up and down synchronously with the liquid receiving mechanism to limit the transmission shaft of the telescopic driving mechanism 2, ensuring stable telescopic movement of the transmission shaft and avoiding shaking or deviation of the transmission shaft.

[0031] A linkage plate 10 is arranged between the mounting base 4 and the liquid receiving mechanism, and serves as an intermediate connecting plate between the liquid receiving mechanism and the telescopic driving mechanism 2 and the linear optical shaft. Specifically, the transmission shaft of the telescopic driving mechanism 2 and the bottom end of the linear optical shaft are both fixed to the upper end of the linkage plate 10, and the hinge shaft 11 is fixed to the bottom of the linkage plate 10. The arrangement of the linkage plate 10 can simplify the connection structure between the transmission shaft, the linear optical shaft and the liquid receiving mechanism.

[0032] A magnetic proximity switch 9 is arranged at the initial end and the terminal end of the telescopic stroke of the telescopic driving mechanism 2. A magnet corresponding to the magnetic proximity switch 9 is arranged on the telescopic driving mechanism 2. In this embodiment, the magnet is a magnetic ring provided on the telescopic driving mechanism 2, i.e., the pneumatic cylinder. The magnetic ring is arranged at the bottom of the piston of the pneumatic cylinder. The magnetic proximity switch 9 arranged at the initial end and the terminal end of the telescopic stroke of the telescopic driving mechanism 2 can monitor the running stroke of the piston of the pneumatic cylinder, and thus determine whether the pneumatic cylinder drives the liquid receiving mechanism to reach the liquid receiving station or the liquid discharging station.

[0033] In this embodiment, the magnetic proximity switch 9 is arranged on the cylinder body of the pneumatic cylinder. Of course, the magnetic proximity switch 9 can also be arranged on a support frame arranged around the pneumatic cylinder.

[0034] A control unit is arranged, which at least includes a controller and a liquid receiving electromagnetic valve and a liquid discharging electromagnetic valve for controlling the operation of the telescopic driving mechanism 2. In this embodiment, the controller can be a local controller or a remote controller, which is designed according to actual needs. It can be understood that the liquid receiving electromagnetic valve and the liquid discharging electromagnetic valve should be arranged in the control circuit of the pneumatic cylinder. Specifically, when the liquid receiving program is started, the liquid receiving electromagnetic valve is opened to start the extension of the pneumatic cylinder. When the liquid discharging program is started, the liquid discharging electromagnetic valve is started to start the contraction of the pneumatic cylinder.

[0035] The use principle of this embodiment includes:

[0036] This device is used in combination with a crane pipe. In the initial state (which can also be referred to as the liquid receiving station), the pneumatic cylinder is extended to drive the liquid receiving groove 8 to be located at the bottom of the crane pipe vertical pipe 5 (as shown in Figure 3 ). When the crane pipe is started, the crane pipe vertical pipe 5 runs above the tank opening. The controller sends a signal to the liquid discharging electromagnetic valve. At this time, the liquid discharging electromagnetic valve is opened, the pneumatic cylinder is retracted, the linear optical shaft can ensure that the pneumatic cylinder runs stably and is not easy to be twisted, and the liquid receiving groove 8 is lifted and tilted under the joint action of the crane pipe vertical pipe 5 and the pneumatic cylinder to pour the residual liquid into the tank opening (as shown in Figure 2 ). At the same time, the magnetic proximity switch 9 arranged at the initial end senses the magnetic ring of the pneumatic cylinder and gives an open-to-position signal. At this time, the liquid discharging step is completed, and the loading can be performed. When the loading is completed, the crane pipe vertical pipe 5 is lifted to a certain height, the controller sends a signal to the liquid receiving electromagnetic valve, the liquid receiving electromagnetic valve is opened and controls the pneumatic cylinder to be extended, and the liquid receiving groove 8 is lowered to the initial position (as shown inFigure 3 ), at this time the lower magnetic proximity switch 9 senses the pneumatic cylinder magnetic ring and gives a received position signal, at this time the liquid receiving is completed, and the crane pipe returns to the standby position.

[0037] As can be seen from the above, the device can automatically realize the alignment, liquid receiving and liquid releasing operations without the participation of personnel, greatly reducing the safety hazards to the operating personnel, and the device has simple structure, convenient operation and low use cost, and has certain practical value and economic benefits.

[0038] The above is only an embodiment of the present application, and the well-known specific structures and characteristics and other common knowledge in the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the present application, some improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of the claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A liquid receiving device for loading arms, characterized in that: The device includes a guide frame fixed to the vertical tube of an loading arm and a telescopic drive mechanism mounted on the guide frame and capable of axially extending and retracting relative to the vertical tube of the loading arm. A liquid receiving mechanism is mounted at the bottom of the telescopic drive mechanism via a hinge shaft, forming a rocker structure with the telescopic drive mechanism via the hinge shaft. When the telescopic drive mechanism moves the liquid receiving mechanism to the liquid discharge position, the liquid receiving mechanism is located on one side of the vertical tube of the loading arm and swings at an angle around the hinge shaft. When the telescopic drive mechanism moves the liquid receiving mechanism to the liquid receiving position, the liquid receiving mechanism can swing around the hinge shaft and thus be located directly below the bottom of the vertical tube of the loading arm.

2. The loading arm liquid receiving device according to claim 1, characterized in that: The liquid receiving mechanism includes a liquid receiving tank and a counterweight. The liquid receiving tank includes a liquid receiving end and a non-liquid receiving end. The counterweight is fixed to the non-liquid receiving end of the liquid receiving tank, and the counterweight and the liquid receiving end of the liquid receiving tank are located at opposite ends of the hinge shaft. At the same time, the weight of the counterweight is greater than the weight of the liquid receiving end.

3. The loading arm liquid receiving device according to claim 2, characterized in that: The size of the liquid receiving end is larger than the size of the bottom of the loading arm vertical tube.

4. The loading arm liquid receiving device according to claim 1, characterized in that: The guide frame includes a mounting base and a guide rod. The telescopic drive mechanism is fixed on the mounting base, and the guide rod is mounted on the mounting base and located on the outer periphery of the telescopic drive mechanism.

5. The loading arm liquid receiving device according to claim 4, characterized in that: The guide rod is a linear optical axis, which is mounted on the mounting base via a linear bearing. Its bottom end extends out of the linear bearing and is hinged to the liquid receiving mechanism, thus moving up and down synchronously with the liquid receiving mechanism.

6. The loading arm liquid receiving device according to claim 5, characterized in that: A linkage plate is provided, which is disposed between the mounting base and the liquid receiving mechanism, serving as an intermediate connecting plate between the liquid receiving mechanism and the telescopic drive mechanism and the linear optical axis.

7. The loading arm liquid receiving device according to claim 1, characterized in that: A magnetic proximity switch is provided, which is respectively set at the initial end and the end of the extension stroke of the telescopic drive mechanism. At the same time, a magnet corresponding to the magnetic proximity switch is provided on the telescopic drive mechanism.

8. The loading arm liquid receiving device according to claim 1, characterized in that: The telescopic drive mechanism is a pneumatic cylinder.

9. The loading arm liquid receiving device according to claim 1, characterized in that: The guide frame is fixed to the vertical tube of the loading arm by a clamp.

10. The loading arm liquid receiving device according to claim 1, characterized in that: It includes a control unit, which includes at least a controller and a liquid receiving solenoid valve and a liquid discharging solenoid valve for controlling the operation of the telescopic drive mechanism.

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