CN201207040Y - New folding arm mechanism for vehicle-mounted radiation imaging system - Google Patents

Abstract

A folding arm mechanism applied to a vehicle-mounted radiation imaging system, the vehicle includes a body behind the driver's cab, the body includes a generator compartment and a control cabin, the folding arm mechanism includes a vertical detection arm, a main arm frame and a vertical detection arm and The hinge mechanism of the hinged connection of the main boom, the hinge mechanism includes: a first connecting device having a free end and a fixed end fixedly connected or integrated with the main boom; a second connection fixedly connected with the vertical detection arm device; and an intermediate device that connects the first connection device and the second connection device so that the vertical detection arm can rotate relative to the main boom frame, it is characterized in that the bottom of the first connection device is flat with the bottom of the main boom frame or at above the bottom of the main boom.

Description

New folding arm mechanism for vehicle-mounted radiation imaging system

technical field

The utility model relates to the technical field of radiation detection, in particular to a folding arm mechanism for a vehicle-mounted radiation imaging system.

Background technique

Security inspection is of great significance in the fields of anti-terrorism and combating drug trafficking and smuggling. After the September 11 incident in the United States in 2001, people paid more and more attention to the safety inspection of civil aviation. At the same time, with the deepening of the fight against drug trafficking and smuggling, the inspection requirements for air containers and railway luggage are getting higher and higher.

The closest prior art vehicle-mounted imaging system to the present invention is the vehicle-mounted imaging system that the applicant is using. Referring to accompanying drawings 8A, 8B and 8C, the vehicle-mounted imaging system generally includes a vehicle carrying the imaging system and a folding arm mechanism. The vehicle includes a body and a driver's cab. The body is divided into a generator compartment and an inspection system control compartment along the direction of vehicle travel. The folding arm mechanism is compactly placed on the top of the vehicle body in the folded state so as to be carried and transported by the vehicle to the place where it needs to be used, wherein the vertical detection arm of the folding arm mechanism is located above the equipment room, and the equipment room generally has no The space requirement can thus be made lower so that the folded vertical probe arm can be placed on top of it. The folded vertical detection arm is generally located on the side of the main arm frame of the folding arm mechanism and the lowest point of the vertical detection arm is lower than the lowest point of the main arm frame. In the prior art, the slewing bearing of the main boom is located on the generator cabin, and the slewing bearing extends downward from the main boom and is lower than the plane where the highest point of the generator cabin is located, so the top of the generator cabin must not Instead of a stepped shape, there are two parallel planes at different heights. Therefore, in such a vehicle-mounted imaging system in the prior art, the turning point in the original folding arm mechanism causes a ballast, and the relatively large jib frame further increases the occupied space of the cabin. The production and processing of such a generator cabin is relatively complicated, thus increasing the production cost.

In the prior art, the generator compartment is close to the driver's cab. The accelerator is located in the channel formed by the vertical detection arm and the main boom frame for radiation imaging detection. Therefore, the control cabin is relatively close to the accelerator target in the prior art. If the positions of the generator cabin and the control cabin are reversed, the effects of radiation. Therefore, it is desirable to move the control cabin where the personnel are located to this position to increase the protection of personnel. In the prior art, because the generator cabin is not an area for personnel to operate, the collapsed structure of the generator cabin does not have any other problems except that the production is more complicated. However, in order to achieve a certain level of radiation protection, the design of the prior art will inevitably cause the control cabin to be closer to the accelerator target in the detection state, so more radiation protection materials are required for the control cabin wall and top. Therefore, the load of the vehicle-mounted system is increased, the adaptability of the vehicle-mounted system to the vehicle weight limit regulations of various countries is reduced, and the production cost is also increased.

When the folding arm mechanism of the prior art needs to be used, it is first necessary to rotate the folded arm mechanism parallel to the ground to the side of the vehicle body by approximately 90 degrees so that the folding arm mechanism is approximately perpendicular to the direction of travel of the vehicle, and then the vertical detection arm is Rotate down about 90 degrees so that the vertical detection arm is approximately perpendicular to the main boom frame and approximately perpendicular to the ground. At this time, the folding arm mechanism is unfolded, and the vertical detection arm is suspended on the main boom frame by a hinge mechanism on one side of the vehicle body. A detection channel region is thus formed for the passage of the object to be detected. The equipment cabin rotates and moves to the other side of the vehicle body, and the staff in the control cabin performs corresponding control operations.

Utility model content

The utility model provides a folding arm mechanism for a vehicle-mounted radiation imaging system, which can be applied to such a vehicle-mounted radiation imaging system: the generator cabin and the control cabin are reversed, so as to reduce the use of radiation protection materials and protect the staff at the same time Not subject to radiation hazards. Simultaneously, the folding arm mechanism also brings the following advantages: avoiding the limitation of the personnel activity space caused by the above-mentioned ballast cabin, so that the personnel can work comfortably in the control cabin.

In addition, those skilled in the art know that the weight of the vehicle-mounted inspection system has always been an important indicator restricting its development, and its relatively light vehicle weight and axle load will be able to meet the legal requirements of more countries. Through the forward movement of the control cabin of the vehicle-mounted inspection system and the exchange of positions with the generator cabin, the amount of protective materials on the control cabin is greatly reduced, thereby reducing the weight. However, because of the main boom ballast problem, a part of the top of the control cabin must collapse downward after the control cabin moves forward, which reduces the space for personnel activities and increases the difficulty of cabin processing. This shortcoming is also overcome by the folding arm mechanism of the present utility model.

The folding arm mechanism of the utility model realizes the front of the control cabin under the condition that the space size of the control cabin remains unchanged, and does not need to sink a part of the cabin roof, which reduces the difficulty of processing the original equipment cabin.

To sum up, the purpose of this utility model is to address the above-mentioned deficiencies in the prior art and to provide an improved folding arm mechanism applied to a vehicle-mounted imaging system. The folding arm mechanism makes the hinged part of the main arm frame located in the control cabin It is above the higher plane of the top, thereby increasing the space for personnel activities, providing a more comfortable environment for the staff, and reducing the processing cost and difficulty of the cabin body, because the folding arm mechanism allows the control cabin to operate without reducing the space size. Under certain conditions, the position exchange with the generator cabin is realized, so that the radiation protection material on the control cabin body is greatly reduced, thereby reducing the weight of the vehicle.

Another purpose of the utility model is to provide a new folding arm mechanism which reduces the weight of the original folding arm mechanism.

Another purpose of this utility model is to provide an improved folding arm mechanism for vehicle-mounted imaging systems, which realizes the retraction and retraction of the vertical arm in a new way, and ensures the posture of the vertical detection arm in the detection state.

Another object of the present utility model is to provide a vehicle-mounted imaging system, which has the folding arm mechanism of the present utility model, wherein, viewed from the forward direction of the vehicle, the generator cabin is behind the control cabin, and the control cabin is close to the driver's cab. The top of the generator compartment and the top of the generator compartment can be a single plane structure.

In order to achieve the above object, the utility model adopts the following technical solutions:

A folding arm mechanism applied to a vehicle-mounted radiation imaging system, the vehicle includes a body behind the driver's cab, the body includes a generator compartment and a control cabin, the folding arm mechanism includes a vertical detection arm, a main arm frame and a vertical detection arm and The hinge mechanism of the hinged connection of the main boom, the hinge mechanism includes: a first connection device having a free end and a fixed end fixedly connected or integrated with the main boom; a second connection fixedly connected with the vertical detection arm device; and an intermediate device that connects the first connection device and the second connection device so that the vertical detection arm can rotate relative to the main boom frame, it is characterized in that the bottom of the first connection device is flat with the bottom of the main boom frame or at above the bottom of the main boom.

Preferably, viewed from the working position, the first connecting device is close to the front side of the main boom.

Preferably, the intermediate device includes a jib frame and a rotary shaft fixedly connected to each other.

Preferably, the jib frame includes a fixed flange connected to the vertical detection arm and a shaft sleeve fixedly connected to the rotary shaft.

Preferably, one end of the sub-jib frame whose rotary shaft is aligned with the fixing flange has a flange for fixing the vertical detection arm and a bearing shaft for carrying the vertical detection arm embedded in a hole at this end.

Preferably, the bushing can be divided into an upper half bushing and a lower half bushing that can be detachably connected, and the upper half bushing is connected or integrated with the main body of the sub-arm frame, and at the same time, it is arranged axially on the outer diameter of the rotary shaft to connect with the bushing Grooves of the same axial length, so that the upper and lower bushings can be embedded in said grooves by fastening means.

Preferably, from a working state, the second connecting device is a protruding structure extending from the vertical detection arm to the main arm frame beyond the width of the vertical detection arm so as to ensure the size of the detection channel.

A vehicle-mounted radiation imaging system, which uses the folding arm mechanism of the utility model.

Preferably, the control cabin is immediately adjacent to the cockpit and the generator compartment is behind the control cabin.

Preferably, the top of the control cabin is a flat top structure, and the space of the control cabin is suitable for staff to operate.

The utility model has the following beneficial effects:

1. This solution enables the position of the control cabin to be swapped with the generator cabin without reducing the size of the space, thereby greatly reducing the amount of radiation protection materials on the control cabin, thereby reducing the weight of the vehicle.

2. The weight of a preferred folding arm mechanism of the present invention can also be greatly reduced compared with the existing folding arm mechanism. From Figures 11A, 11B and 11C, especially Figure 11C, it can be seen that the folding arm mechanism in the prior art is relatively bulky, connected to the vertical arm through two flanges 51 and 52, and connected to the main arm frame through a rotary shaft 53.

3. The solution of the utility model no longer needs to collapse the roof of the cabin downward, so that the construction of the cabin body of the existing system is simplified.

Description of drawings

1A and 1B show the first connection device on the main boom in the hinge mechanism of the folding arm mechanism of the prior art;

Fig. 2 is an improved schematic diagram for the first connection device of Fig. 1;

Fig. 3 shows the working state of the folding arm mechanism of the present utility model;

Fig. 4 shows the folding state of the folding arm mechanism of Fig. 3;

Fig. 5 and Fig. 6 show respectively the front view and the side view of the second connecting device on the vertical detection arm in the hinge mechanism of the folding arm mechanism of the present invention;

7A and 7B respectively show a front view and a side view of the vehicle-mounted system of the present invention in a storage and transportation state; and

8A, 8B and 8C are the front view, side view and top view of the hinge mechanism of the conventional folding arm mechanism.

Detailed ways

In order to make the technical solutions provided by the utility model clearer and clearer, the utility model will be described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

First of all, it needs to be clear that the "front" and "rear" mentioned below are relative to the forward direction of the car. "Above" and "below" refer to relative positions in the height direction of the vehicle.

In addition, in this specification, "the left side of the vehicle body" and "the right side of the vehicle body" refer to the left and right sides of the observer when the vehicle is stationary and the observer stands at the front of the vehicle and looks backward.

As shown in Figure 3, it shows the folding arm mechanism of the present utility model in the unfolded state or in use state, including the vertical detection arm 5, the main arm frame 1 and the hinged connection of the vertical detection arm 5 and the main arm frame 1. structure, the hinged structure includes a first connection device connected to the main boom 1, a second connection device connected to the vertical detection arm 5, and an intermediate device that connects the first connection device and the second connection device in relative rotation . Wherein the body part 2 of the first connecting device is parallel to the bottom horizontal plane 21 of the main arm frame 1 and is equal to or higher than the bottom horizontal plane 21 .

The improvement of the first connection device can be seen more clearly from Fig. 1 and Fig. 2. In the prior art, the first connection device is integrally connected with the main boom frame and extends downward obliquely, thus leading to the ballast tank technology Defect, the first connecting device includes the body part 2 and the slewing bearing part 3, of course other hinged ways can also be used.

In Fig. 2, the body part 2 of the first connecting device of the present utility model is parallel to the main arm frame 1, preferably the bottom of the first connecting device is above the bottom of the main arm frame 1, and the body part 2 is shown in Fig. 2 It is preferably a triangular plate, or other shapes that can reduce material consumption and reduce vehicle weight. This body portion can be seen more clearly in Figures 7A and 7B. Those skilled in the art know that one end of the main arm frame 1 can be rotatably connected to the main control shaft fixed on the vehicle, and the other end is used for connecting the vertical detection arm. On the other end, the body part 2 is as close as possible to the bottom of the main boom 1 and to one side of the main boom 1 (the side in this embodiment is the side facing the front main boom in the unfolded state) ) is connected to the main arm frame, and the slewing bearing part 3 is arranged on the hinged end of the body 2 (as shown in Figure 2). It can be seen from Fig. 3 and Fig. 4 that the second connection device is preferably the vertical detection arm extension structure 6 protruding from the top of the vertical detection arm 5 (in working state), because the vertical detection arm extends after the position of the rotary hinge axis moves up. The output structure 6 can ensure the size of the detection channel. The extension structure 6 of the vertical detection arm can be connected with the vertical detection arm in a manner known in the art. In order to reduce the weight and material consumption of the second connection device, as shown in FIG. 3 , the second connection device can be an intermediate Openwork shape.

As shown in Figure 5 and Figure 6, the intermediate device includes a sub-arm frame 4 and a rotary shaft 7, and the vertical detection arm extension structure 6 can be integrated with the sub-arm frame 4 and the vertical detection arm 5 in any known manner , as long as the extension structure, the vertical detection arm and the sub-arm frame can be rotated as a whole. The jib frame 4 shown in the figure can be divided into a fixed flange 13 with a plurality of threaded holes, a transition part and a shaft hole part, and these three parts are integrated. Wherein, for the convenience of installation, the shaft hole part is divided into an upper half-shaft sleeve integrated with the transition part, and a lower half-shaft sleeve which can be separated from the upper half-shaft sleeve. The rotary shaft 7 preferably has a slot 8 with a length equal to the axial length of the shaft sleeve 12 of the auxiliary boom frame 4 along the axis on the outer diameter so that the shaft sleeve 12 can be embedded in the slot 8 . The sub-jib frame 4 can be fixed to the rotary shaft 7 by a fastening device such as a bolt device 10 , thereby preventing the sub-jib frame 4 from moving on the rotary shaft 7 . As shown in Figure 5, the pivot shaft has a flange 13' at a position substantially aligned with the flange 13 to strengthen the connection with the vertical probe arm. In addition, the rotary shaft 7 can be hollow, and the bearing shaft is inserted at one end with the flange 13', so as to further strengthen the bearing of the vertical detection arm. The hollow rotary shaft 7 is connected with the rotary bearing 3 in the first connection device so as to realize the rotary connection between the vertical detection arm and the main arm frame 1 . Therefore, for the convenience of transportation, the vertical detection arm is rotated upward around the bearing 3 until it is placed in a position parallel to the main boom frame and as close as possible to the main boom frame.

It can be seen from Figure 4 that the vertical detection arm is controlled by the hydraulic cylinder, so as to realize automatic deployment and maintain the working state.

The vehicle-mounted radiation imaging system using this folding arm mechanism preferably moves the control cabin forward, next to the driver's cab.

Next, with reference to Figures 7A and 7B, the folding state of the folding arm mechanism will be described:

The vertical detecting arm 5 is folded and positioned at the main arm frame back and below by automatic control, and then the main arm frame and the vertical detecting arm are rotated to the automobile body until being positioned on the top of the vehicle body and roughly parallel to the direction of travel. Thus, as shown in Figure 7B, the lowest position of the part comprising the main boom and the first connecting device on the top of the control cabin is on the top of the control cabin and parallel to it, and an equipment room is set at the position where the vertical detection arm is located, thus There are no special requirements for space and comfort.

The above are only the embodiments of the present utility model, and are not intended to limit the present utility model. According to the content disclosed in the present utility model, some similarities and alternatives that those of ordinary skill in the art can obviously think of should be included in this utility model. within the scope of the new protection.

Claims (10)

1. A novel folding arm mechanism applied to vehicle-mounted radiation imaging system, this folding arm mechanism comprises vertical detection arm, main arm frame and the hinged mechanism that vertical detection arm is hingedly connected with main arm frame, and described hinged mechanism comprises: A first connection device having a free end and a fixed end fixedly connected or integrated with the main boom frame; a second connection device fixedly connected with the vertical detection arm; and connecting the first connection device and the second connection device such that The intermediate device in which the vertical detection arm can rotate relative to the main boom frame is characterized in that the bottom of the first connecting device is equal to or above the bottom of the main boom frame. 2. The folding arm mechanism according to claim 1, characterized in that, viewed from the working position, the first connecting device is close to the front side of the main boom. 3. The folding arm mechanism according to claim 2, wherein the intermediate device comprises a sub-arm frame and a rotary shaft fixedly connected to each other. 4. The folding arm mechanism according to claim 3, characterized in that, the sub-arm frame comprises a fixed flange connected to the vertical detection arm and a shaft sleeve fixedly connected to the rotary shaft. 5. The folding arm mechanism according to claim 4, characterized in that, one end of the jib frame whose rotary shaft is aligned with the fixed flange has a flange for fixing the vertical detection arm and a bearing embedded in the hole at this end. Bearing axis for the vertical probe arm. 6. The folding arm mechanism according to claim 5, characterized in that, the bushing can be divided into upper and lower half bushings which are detachably connected, and the upper half bushing is connected or integrated with the main body of the jib frame, At the same time, a groove with the same axial length as the shaft sleeve is axially provided on the outer diameter of the rotary shaft, so that the upper and lower half sleeves can be embedded in the groove through the fastening device. 7. The folding arm mechanism according to any one of claims 3-5, characterized in that, viewed from the working state, the second connection device extends from the vertical detection arm to the main arm frame beyond the vertical detection arm The width of the protruding structure makes it possible to ensure the detection channel size. 8. A vehicle-mounted radiation imaging system, which uses the folding arm mechanism according to any one of claims 1-6. 9. The vehicle-mounted radiation imaging system according to claim 8, wherein the control cabin is adjacent to the driver's cab, and the generator cabin is behind the control cabin. 10. The vehicle-mounted radiation imaging system according to claim 9, wherein the top of the control cabin is a flat top structure, and the space in the control cabin is suitable for staff to operate.

Images