CN108438756A - load-bearing separation transport device - Google Patents

Abstract

Bear formula separation conveyor comprises power supply transmission, epicyclic gear train differential gear and passenger and the special conveyor of goods, through setting up goods conveying track and people's conveying track to adjust both sides track differential according to actual conditions, solved the passenger phenomenon of blocking up that the goods security installations caused such as security inspection department, improve security inspection efficiency, and the electric power that consumes is unchangeable when changing transport speed, have novel structure, safe and reliable, energy-conservation, characteristics such as control convenience.

Description

load-bearing separation transport device

technical field

The invention relates to the field of security inspection equipment, in particular to transmission equipment for security inspection.

Background technique

At present, China's economy continues to develop, and people's mobility is increasing. The connection between cities - the railway station, and the connection within the city - the subway, are also facing more tests brought about by the huge flow of people. The security check is a part of the test. In railway stations and subway stations, the crawlers for security checks are still relatively primitive constant speed crawlers. Taking the nearby subway as an example, the efficiency of security checks at subway stations can meet the needs of passengers during periods of low traffic such as off-peak hours, but its problems are clearly revealed when the traffic of passengers is heavy. Out. At present, its shortcomings are mainly manifested in: the speed of security check is slow, and the speed of people is fast, and the problem of "people waiting for goods" will appear; It takes a long time; when the security check needs further inspection, it will cause congestion and further waste time.

In view of the security inspection requirements required when there is a large flow of people, the current measures taken by railway stations, subway stations, etc. are as follows:

(1) Increase the number of security inspection devices, which may cause a waste of human and financial resources when the passenger flow is small;

(2) In order to ensure the speed of the security check and not cause congestion, the severity of the security check has to be appropriately reduced.

Contents of the invention

In order to solve the above-mentioned problems of the uniform-speed crawler belts in the security inspection of railway stations and subway stations, the present invention provides a load-bearing separation transport device.

The technical solution adopted by the present invention to achieve the above object is: a load-bearing separation and conveying device, a motor is installed at the front of the bottom plate, the transmission shaft of the motor is connected to a small transmission wheel, and the small transmission wheel is connected to a large transmission wheel through a transmission belt, and the large transmission wheel is installed on the second Between the first driving track wheel and the second driving track wheel, the first driving track wheel is installed on a support frame at the front through the first drive shaft, the first drive shaft is installed through the center of the large drive wheel, and the second drive track wheel The second transmission shaft is installed on another support frame at the front, the first driving track wheel is connected to the first driven track wheel through the first track, and the second driving track wheel is connected to the second driven track wheel through the second track , the first driven track wheel and the second driven track wheel are respectively installed on the support frame at the rear through a small transmission shaft; two brackets are symmetrically installed on the end surface of the large drive wheel on one side of the second driving track wheel, and the inside of the bracket There are four bevel gears installed vertically meshing with each other, the two horizontal bevel gears pass through the shaft and are installed on the two brackets, and the outer bevel gear perpendicular to the two horizontal bevel gears is connected to the second transmission shaft.

The intersection points of the axis lines of the four bevel gears 5 which are vertically meshed with each other are consistent.

A shaft sleeve is installed between the two ends of the shaft 17 and the support 13 , and an axle sleeve is installed between the first transmission shaft 16 , the second transmission shaft 18 and the small transmission shaft 8 and the support frame 7 .

The support 13 is an inverted U-shaped structure, and the support 13 is provided with a hole matched with the shaft 17; Axle 18 or small drive shaft 8 matches the hole that is installed.

The load-bearing separation conveying device of the present invention realizes that the conveying speed of suitcases is higher than that of passengers by setting cargo conveying crawlers and people conveying crawlers, and can automatically adjust the conveying speed according to the weight difference, cleverly avoiding the occurrence of "people waiting for goods". "Phenomenon, it solves the phenomenon of passenger congestion caused by cargo security check at the security checkpoint, improves the efficiency of security check, and the electric power consumed when switching the transportation speed remains unchanged. It has the characteristics of novel structure, safety and reliability, energy saving, and convenient control.

Description of drawings

Fig. 1 is a structural diagram of the load-bearing separation and conveying device of the present invention.

Fig. 2 is a partial structural diagram of the epicyclic gear train differential device of the load-carrying separation conveying device of the present invention.

In the figure: 1. Cargo, 2. Electric motor, 3. Small transmission wheel, 4. Transmission belt, 5. Bevel gear, 6. Large transmission wheel, 7. Support frame, 8. Small transmission shaft, 9. Base plate, 10. The first One track, 11, the first driven track wheel, 12, the second driving track wheel, 13, the bracket, 14, the second track wheel, 15, the second driven track wheel, 16, the first driving track wheel, 17, the shaft , 18, the second transmission shaft, 19, the first transmission shaft.

Detailed ways

The structure of the load-bearing separation transport device of the present invention is shown in Figure 1, and consists of three major parts, which are respectively a power supply transmission device, an epicyclic wheel train differential device, and a special transport device for passengers and goods. All parts are installed on the bottom plate, among them: the power supply transmission device is connected with the external power supply and installed at the front of the whole device; On the upper part of the epicyclic gear train differential device. Among them, the motor 2 converts electrical energy into mechanical energy, drives the small transmission wheel 3 and the large transmission wheel 6, which is the power supply transmission device; the four vertical and precise meshing bevel gears 5 can output different transport speeds, and this is the epicyclic wheel It is a differential device; the first driven track wheel 11, the first track wheel 10, the second driven track wheel 15, the second track wheel 14, the first driving track wheel 16 and the second driving track wheel 12 are used as vehicles for transporting goods and passengers. equipment, this is the delivery device.

The specific structure is as follows: the motor 2 is installed on the front of the base plate 9, and the motor is installed on the system support device. Between the first driving track wheel 16 and the second driving track wheel 12, the first driving track wheel 16 is installed on a support frame 7 at the front through the first transmission shaft 19, and the first transmission shaft 19 is installed through the large transmission wheel 6 center, the second driving track wheel 12 is installed on another support frame 7 at the front through the second drive shaft 18, the first driving track wheel 16 is connected to the first driven track wheel 11 through the first track 10, and the second driving track wheel The track wheel 12 is connected to the second driven track wheel 15 through the second track 14, and the first driven track wheel 11 and the second driven track wheel 15 are respectively installed on the support frame 7 at the rear through a small transmission shaft 8; The transmission wheel 6 is located on the end surface of the second driving track wheel 12 and two brackets 13 are installed symmetrically. The inside of the bracket 13 is provided with four bevel gears 5 that are installed perpendicular to each other, and the two horizontal bevel gears 5 are installed through the shaft 17. On the two brackets 13 , the outer bevel gear 5 perpendicular to the two transverse bevel gears is connected to the second transmission shaft 18 . The support 13 is an inverted U-shaped structure, and the support 13 is provided with holes matched with the shaft 17; Or the hole that small-sized propeller shaft 8 matches and installs. A shaft sleeve is installed between the two ends of the shaft 17 and the support 13 , and an axle sleeve is installed between the first transmission shaft 16 , the second transmission shaft 18 and the small transmission shaft 8 and the support frame 7 .

In this device, the motor 2, the small transmission wheel 3, and the large transmission wheel 6 provide the basic power for the whole device. The tension transmitted by the transmission belt between the transmission wheels should not be too large, so as to avoid the eccentricity of the main mechanism.

The main part of the device is vertically meshed by four bevel gears 5, as shown in Figure 2, requiring high manufacturing precision and assembly precision, and the connecting axes of the four bevel gears 5 can be accurately converged to one point. The support 13 on the end face of the large transmission wheel 6 drives the two horizontal bevel gears 5 to rotate freely, and can also follow the large transmission wheel to carry out turnover. A shaft 17 with clearance fit is housed between these two bevel gears. The remaining two bevel gears 5 are respectively equipped with a first transmission shaft 19 and a second transmission shaft 18 of interference fit, and the first transmission shaft 19 and the second transmission shaft 18 are respectively connected to the external first driving track wheel 16 and the second driving wheel. The track wheel 12, the two pairs of bevel gears, the first transmission shaft, the second transmission shaft, the first driving track wheel 16, and the second driving track wheel 12 should not have relative slippage, and they should be able to keep the center of each other at all times Relationship. But first transmission shaft 19 and large transmission wheel 6 and support frame 7 need to realize clearance fit, can guarantee that bevel gear, first transmission shaft, second transmission shaft and driving crawler wheel can rotate freely, and axle sleeve acts as connecting shaft Shoulder effect.

The first driving 16 track wheels and the second driving track wheels 12 on both sides of the main mechanism drive the crawler belts as devices for transporting passengers and goods respectively. The material of the track should meet the requirements of transporting goods and passengers, and the friction force it can provide should be large enough, and the transport resistance should be able to be transmitted to the track wheels on both sides in time.

Calculation example of differential gear ratio:

The following dimensions are model dimensions, which are ideal calculation conditions. To calculate the actual gear ratio, consider the effects of other factors.

Small drive wheel diameter d ₁ =18mm;

Large transmission wheel diameter d ₂ =36mm;

Motor output speed: n ₁ =60r/min (constant);

r/min (constant);

(1) When both track wheels are free of resistance,

n ₃ =n ₄ =n ₂ =30r/min;

(2) When one of the wheels is subjected to resistance, we can consider it to be stationary relative to the ground in extreme cases, and n ₃ =0r/min at this time.

H is the tie rod, the modulus of the bevel teeth is 0.5, the number of teeth is z=16, the rotation of the 3 teeth is opposite to that of the 1 tooth,

n ₃ =0, at this time H is used as tie rod, n _H =30r/min, n ₄ =2×n _H =2×30=60r/min,

At this point we get that if one wheel is controlled to stay still, the other wheel will rotate at twice the speed of the tie rod.

The caterpillars on both sides of the main structure (revolving gear train differential device) are devices for transporting goods and passengers respectively. As the transmission belt for transporting passengers, it needs to be installed under the security gate, so that passengers can stand on the caterpillars and pass through the security gate for scanning; as The crawler belt for transporting goods needs to be installed inside the security inspection scanner so that the goods can be scanned through the security inspection equipment. The installer can install the position and height of the track according to the specific situation, so that the length of the track can be adjusted.

The specific method of differential speed is: the weight of passengers and goods will not be consistent at all times. When the force applied to the track after the passenger steps on the track is less than the force applied to the track after the goods are placed on the other side of the track, this resistance The gap will be transmitted to the active track wheels on both sides through the track. The active track wheels are connected to the bevel gears. Among them, the two horizontal bevel gears will automatically adjust the rotation speed according to the size of the transport resistance, while the revolution of the other two bevel gears The speed is constant, and the speed difference between the two lateral gears is coordinated according to the rotation at any time, which makes the two sides naturally output two different speeds; when the speeds applied to the transmission belt by passengers and goods are roughly the same, the The active track wheel will not sense the difference in resistance. At this time, the two horizontal bevel gears will not have a difference in rotation speed. The two revolving gears driven by the large transmission wheel will coordinate the rotation of the gears on both sides at the same speed according to the rotation. Speed, which makes the two sides output completely consistent rotation speed, so that the speed of passenger and cargo delivery is consistent.

The present invention has been described by means of embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, the features and examples may be modified to adapt a particular situation and material to the teachings of the invention without departing from the spirit and scope of the invention. Therefore, the present invention is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the protection scope of the present invention.

Claims (4)

1. bearing-type detaches conveyer, it is characterised in that：Bottom plate (9) front is installed by motor (2), the transmission of motor (2) The small-sized driving wheel of axis connection (3), small-sized driving wheel (3) connect large-scale driving wheel (6), large-scale driving wheel (6) by transmission belt (4) It is installed between the first drive sprocket (16) and the second drive sprocket (12), the first drive sprocket (16) is passed by first Moving axis (19) is installed on a supporting rack (7) of front, and the first transmission shaft (19), which runs through, to be installed in large-scale driving wheel (6) The heart, the second drive sprocket (12) are installed on by second driving shaft (18) on another supporting rack (7) of front, and first actively carries out Belt wheel (16) connects the first driven Athey wheel (11) by the first crawler belt (10), and the second drive sprocket (12) passes through the second crawler belt (14) it connects on the second driven Athey wheel (15), the first driven Athey wheel (11) and the second driven Athey wheel (15) are respectively by small Type transmission shaft (8) is installed on the supporting rack (7) at rear portion；Large-scale driving wheel (6) is located at the second drive sprocket (12) side It is symmetrically installed two holders (13) on end face, is set on the inside of holder (13) there are four the bevel gear (5) of orthogonal engagement installation, it is horizontal To two bevel gears (5) by axis (17) through being installed on two holders (13), it is vertical with two lateral bevel gears outside Bevel gear (5) the connection second driving shaft (18) of side.

2. bearing-type according to claim 1 detaches conveyer, it is characterised in that：Four orthogonal engagements The axial line intersection point of bevel gear (5) is consistent.

3. bearing-type according to claim 1 detaches conveyer, it is characterised in that：Axis (17) both ends and holder (13) axle sleeve is installed, on first transmission shaft (16), second driving shaft (18) and small-sized transmission shaft (8) and supporting rack between (7) axle sleeve is installed between.

4. bearing-type according to claim 1 detaches conveyer, it is characterised in that：The holder (13) is inverted U knot Structure, holder (13) are equipped with the hole with axis (17) Matching installation；Support frame as described above (7) is inverted U-shaped structure, on supporting rack (7) Equipped with the hole with the first transmission shaft (19), second driving shaft (18) or small-sized transmission shaft (8) Matching installation.