Differential conveying device

Abstract

The application provides a differential conveying device, which comprises a rack, a conveying mechanism and a fastener box; the conveying mechanism comprises at least a first wheel shaft, a second wheel shaft, a first driving unit, a second driving unit, a first driving sprocket, a first driven sprocket, a second driving sprocket, a second driven sprocket, a first conveying chain and a second conveying chain; the first driving unit is connected with the first wheel shaft; the second driving unit is connected with the second wheel shaft; the first driving sprocket is arranged on the first wheel shaft; the first driven sprocket is sleeved on the second wheel shaft; the second driving sprocket is arranged on the second wheel shaft; the second driven sprocket is sleeved on the first wheel shaft; the first conveying chain is arranged around the first driving sprocket and the first driven sprocket; the second conveying chain is arranged around the second driving sprocket and the second driven sprocket; the first conveying chain and the second conveying chain are both provided with the fastener box. Compared with the prior art, the differential conveying device can improve the conveying efficiency of railway fasteners.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway construction technology, and particularly relates to a differential conveying device. BACKGROUND

[0002] When a railway line is overhauled, a large number of railway fastener replacement operations are required, involving a large number of railway fasteners to be replaced and installed. The railway fastener bulk car is a large maintenance machine that can automatically install railway fasteners on the sleeper bolts, replacing manual installation, reducing the amount of construction of railway line operation personnel, and reducing the safety risk of railway line operation. In the process of operation of the railway fastener bulk car, the conveying device conveys each railway fastener to the bulk site at a beat at the loading site, and the bulk site installs the fasteners on the sleeper bolts by the mechanical hand.

[0003] However, in the conveying device of the prior art railway fastener bulk car, the conveying of the railway fasteners is mostly carried out by using one conveying belt. Although the conveying of the railway fasteners can be achieved by using one conveying belt, the operation efficiency is low, thereby affecting the installation and construction efficiency of the whole railway fastener. SUMMARY

[0004] In view of the technical problem in the prior art that the conveying of the railway fasteners is carried out by using one conveying belt, the operation efficiency is low, and the installation and construction efficiency of the railway fastener is affected, the present application provides a differential conveying device, which combines multiple conveying chains together, does not affect each other when moving, and converts the original serial single operation into parallel multi-group simultaneous operation, thereby increasing the operation efficiency, saving time for railway construction operation which requires high operation efficiency and has short construction time, improving the installation and construction efficiency of the railway fastener, and being particularly suitable for application scenes of multiple motion states and high operation efficiency requirements.

[0005] A differential conveying device, comprising a rack, a conveying mechanism, and a fastener box.

[0006] The conveying mechanism is installed on the rack; the conveying mechanism comprises at least a first wheel shaft, a second wheel shaft, a first driving unit, a second driving unit, a first driving sprocket, a first driven sprocket, a second driving sprocket, a second driven sprocket, a first conveying chain, and a second conveying chain.

[0007] The second wheel shaft is arranged in opposite and spaced relation to the first wheel shaft.

[0008] The first driving unit is connected with the first wheel shaft to drive the first wheel shaft to rotate along its axis.

[0009] The second driving unit is connected with the second wheel shaft to drive the second wheel shaft to rotate along its axis.

[0010] The first driving sprocket is arranged on the first axle and can rotate with the first axle;

[0011] The first driven sprocket is arranged on the second axle;

[0012] The second driving sprocket is arranged on the second axle and can rotate with the second axle;

[0013] The second driven sprocket is arranged on the first axle;

[0014] The first conveying chain is arranged around the first driving sprocket and the first driven sprocket;

[0015] The second conveying chain is arranged around the second driving sprocket and the second driven sprocket;

[0016] The fastener box is arranged on the first conveying chain and the second conveying chain, and the fastener box is used to hold and fix railway fasteners.

[0017] Preferably, the conveying mechanism further comprises a third axle, a third driving unit, a third driving sprocket, a third driven sprocket and a third conveying chain;

[0018] The third axle is arranged below the second axle;

[0019] The third driving unit is connected with the third axle and is used to drive the third axle to rotate along the axis of the third axle;

[0020] The third driving sprocket is arranged on the third axle and can rotate with the third axle;

[0021] The first axle and the second axle are both arranged with the third driven sprocket;

[0022] The third conveying chain is arranged around the third driving sprocket and the third driven sprocket, and the fastener box is arranged on the third conveying chain;

[0023] The first driven sprocket and the second driven sprocket are respectively arranged on the third axle.

[0024] Preferably, the conveying mechanism further comprises a fourth axle;

[0025] The fourth axle is arranged below the first axle and is arranged opposite to the third axle;

[0026] The first driven sprocket, the second driven sprocket and the third driven sprocket are respectively arranged on the fourth axle.

[0027] Preferably, the first driven sprocket is sleeved on the second axle, the third axle and the fourth axle respectively through bearings;

[0028] The second driven sprocket is sleeved on the first axle, the third axle and the fourth axle respectively through bearings;

[0029] The third driven sprocket is sleeved on the first axle, the second axle and the fourth axle respectively through bearings.

[0030] Preferably, the guiding device is installed on the frame to drive the differential conveying device to move along the track of the railway line.

[0031] Preferably, the conveying chains in the conveying mechanism are side bending chains.

[0032] The frame comprises a first frame and a second frame; the first frame and the second frame are oppositely arranged along the conveying direction of the conveying mechanism; the conveying mechanism is installed on the first frame and the second frame respectively; the first frame and the second frame are hingedly connected to each other, and the hinge shaft of the first frame and the second frame is in the vertical direction.

[0033] Preferably, the first frame comprises a first frame body and a first frame connecting plate; the first frame connecting plate is connected to the first frame body and located on the side close to the second frame.

[0034] The second frame comprises a second frame body and a second frame connecting plate; the second frame connecting plate is connected to the second frame body and located on the side close to the first frame.

[0035] The first frame connecting plate and the second frame connecting plate are hingedly connected through a hinge shaft.

[0036] Preferably, the end of the first frame and the end of the second frame are both provided with the guiding device.

[0037] Preferably, the guiding device comprises a wheel seat, a pair of guiding wheels and a connecting frame.

[0038] The pair of guiding wheels is rotatably arranged on the wheel seat.

[0039] The connecting frame connects the wheel seat and the frame.

[0040] Compared with the prior art, the differential conveying device provided by the application comprises a rack, a conveying mechanism and a fastener box; the conveying mechanism is installed on the rack; the conveying mechanism comprises at least a first wheel shaft, a second wheel shaft, a first driving unit, a second driving unit, a first driving sprocket, a first driven sprocket, a second driving sprocket, a second driven sprocket, a first conveying chain and a second conveying chain; the second wheel shaft is arranged in opposite spacing with the first wheel shaft; the first driving unit is connected with the first wheel shaft to drive the first wheel shaft to rotate along the axis thereof; the second driving unit is connected with the second wheel shaft to drive the second wheel shaft to rotate along the axis thereof; the first driving sprocket is arranged on the first wheel shaft and can rotate with the first wheel shaft; the first driven sprocket is sleeved on the second wheel shaft; the second driving sprocket is arranged on the second wheel shaft and can rotate with the second wheel shaft; the second driven sprocket is sleeved on the first wheel shaft; the first conveying chain is arranged around the first driving sprocket and the first driven sprocket; the second conveying chain is arranged around the second driving sprocket and the second driven sprocket; the first conveying chain and the second conveying chain are both provided with the fastener box for receiving and fixing railway fasteners. Thus, during conveying, the first driving unit can drive the first conveying chain to run through the first driving sprocket, and the second driving unit can drive the second conveying chain to run through the second driving sprocket. Since the first driven sprocket is sleeved on the second wheel shaft, the first driven sprocket will not be driven by the second wheel shaft when the second wheel shaft runs, so that the second wheel shaft driving the second conveying chain to run will not interfere with the normal running of the first conveying chain. Similarly, since the second driven sprocket is sleeved on the first wheel shaft, the first wheel shaft driving the first conveying chain to run will also not interfere with the normal running of the second conveying chain. The differential conveying device changes the original serial single operation into parallel multi-group simultaneous operation, increases the operation efficiency, saves time for railway construction operation which requires high operation efficiency and has short construction time, and is particularly suitable for application scenarios with multiple motion states and high operation efficiency requirements. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0042] Figure 1 The structural schematic diagram of the differential conveying device provided by an embodiment;

[0043] Figure 2 The structural schematic diagram of the differential conveying device provided by an embodiment;Figure 1 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2;

[0044] Figure 3 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2; Figure 1 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2;

[0045] Figure 4 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2; Figure 1 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2;

[0046] Figure 5 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2; Figure 1 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2;

[0047] Figure 6 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2; Figure 1 Structure diagram of the conveying mechanism shown in Fig. 1 is shown in Fig. 2. DETAILED DESCRIPTION

[0048] In order to make the technical personnel in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present application.

[0049] It should be noted that when a component is referred to as "fixed to", "mounted to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component; when a component is "connected" to another component, or a component is referred to as "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0050] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" or "several" is two or more, unless otherwise expressly and specifically limited.

[0052] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to understand and read the disclosed content by those skilled in the art, and are not used to limit the conditions for implementing the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0053] The application provides a differential conveying device, which comprises a rack, a conveying mechanism and a fastener box; the conveying mechanism is installed on the rack; the conveying mechanism comprises at least a first wheel shaft, a second wheel shaft, a first driving unit, a second driving unit, a first driving sprocket, a first driven sprocket, a second driving sprocket, a second driven sprocket, a first conveying chain and a second conveying chain; the second wheel shaft is arranged opposite to the first wheel shaft; the first driving unit is connected with the first wheel shaft to drive the first wheel shaft to rotate along the axis thereof; the second driving unit is connected with the second wheel shaft to drive the second wheel shaft to rotate along the axis thereof; the first driving sprocket is arranged on the first wheel shaft and can rotate with the first wheel shaft; the first driven sprocket is sleeved on the second wheel shaft; the second driving sprocket is arranged on the second wheel shaft and can rotate with the second wheel shaft; the second driven sprocket is sleeved on the first wheel shaft; the first conveying chain is arranged around the first driving sprocket and the first driven sprocket; the second conveying chain is arranged around the second driving sprocket and the second driven sprocket; the first conveying chain and the second conveying chain are both provided with the fastener box, and the fastener box is used for receiving and fixing railway fasteners. Therefore, when conveying, the first driving unit can drive the first conveying chain to run through the first driving sprocket, and the second driving unit can drive the second conveying chain to run through the second driving sprocket. Since the first driven sprocket is sleeved on the second wheel shaft, when the second wheel shaft runs, the first driven sprocket cannot be driven by the second wheel shaft, so that when the second wheel shaft drives the second conveying chain to run, the normal running of the first conveying chain is not interfered. Similarly, since the second driven sprocket is sleeved on the first wheel shaft, when the first wheel shaft drives the first conveying chain to run, the normal running of the second conveying chain is not interfered. The differential conveying device changes the original serial single operation into parallel multi-group simultaneous operation, increases the operation efficiency, saves time for railway construction operation which requires high operation efficiency and has short construction time, and is particularly suitable for application scenes with multiple motion states and high operation efficiency requirements.

[0054] Please refer to Figures 1 to 6 The embodiment provides a differential conveying device 100 applied to a railway fastener bulk vehicle. That is, the differential conveying device 100 is a conveying device for a railway fastener bulk vehicle.

[0055] The differential conveying device 100 comprises a rack 10, a conveying mechanism 20 and a fastener box 40. The conveying mechanism 20 is installed on the rack 10, and the conveying mechanism 20 is used for conveying the fastener box 40, so that the railway fasteners in the fastener box 40 are conveyed to a required position area.

[0056] The conveying mechanism 20 comprises at least a first axle 21, a second axle 22, a first driving unit 23, a second driving unit 24, a first driving sprocket 25, a first driven sprocket 26, a second driving sprocket 27, a second driven sprocket 28, a first conveying chain 29, and a second conveying chain 31.

[0057] The second axle 22 is oppositely spaced from the first axle 21. The first driving unit 23 is connected to the first axle 21. The second driving unit 24 is connected to the second axle 22. The first driving unit 23 is used to drive the first axle 21 to rotate along the axis of the first axle 21. The second driving unit 24 is used to drive the second axle 22 to rotate along the axis of the second axle 22.

[0058] The first driving sprocket 25 is arranged on the first axle 21 and can rotate with the first axle 21, i.e. the first driving sprocket 25 is fixed on the first axle 21. When the first axle 21 is driven to rotate by the first driving unit 23, the first driving sprocket 25 will be correspondingly driven to rotate. In this embodiment, the first driving sprocket 25 is keyed to the first axle 21. The first driven sprocket 26 is sleeved on the second axle 22, i.e. the first driven sprocket 26 is sleeved on the second axle 22. When the second axle 22 is driven to rotate by the second driving unit 24, there is no relative force between the first driven sprocket 26 and the second axle 22 in the circumferential direction, so the first driven sprocket 26 will not rotate with the second axle 22. The first conveying chain 29 is arranged around the first driving sprocket 25 and the first driven sprocket 26, so that the first conveying chain 29 can be driven to run by the rotation of the first driving sprocket 25.

[0059] The second driving sprocket 27 is arranged on the second axle 22 and can rotate with the second axle 22, that is, the second driving sprocket 27 is fixed on the second axle 22, and when the second axle 22 rotates under the drive of the second driving unit 24, the second driving sprocket 27 will be correspondingly driven to rotate. Specifically, in this embodiment, the second driving sprocket 27 is connected with the second axle 22 by a key. The second driven sprocket 28 is sleeved on the first axle 21, that is, the second driven sprocket 28 is sleeved on the first axle 21, and when the first axle 21 rotates under the drive of the first driving unit 23, there is no relative force between the second driven sprocket 28 and the first axle 21 in the circumferential direction, and the second driven sprocket 28 will not rotate with the first axle 21. The second conveying chain 31 is arranged around the second driving sprocket 27 and the second driven sprocket 28, so that the rotation of the second driving sprocket 27 can drive the second conveying chain 31 to run.

[0060] The first conveying chain 29 and the second conveying chain 31 are both provided with the fastener box 40, and the fastener box 40 is used to accommodate and fix the railway fastener. Therefore, the running of the first conveying chain 29 and the second conveying chain 31 can simultaneously convey the railway fastener.

[0061] That is, in this embodiment, the first axle 21 is the driving axle of the first conveying chain 29, and the rotation of the first axle 21 can drive the first conveying chain 29 to run. At the same time, the first axle 21 is also the supporting axle of the second conveying chain 31, and the first axle 21 is also used to support the normal running of the second conveying chain 31, and since the second driven sprocket 26 is sleeved on the first axle 21, the first axle 21 will not interfere with the second driven sprocket 26 when the first axle 21 runs. Similarly, the second axle 22 is the driving axle of the second conveying chain 31 and is also the supporting axle of the first conveying chain 29.

[0062] That is, the first axle 21, the second axle 22, the first driving sprocket 25, the first driven sprocket 26, and the first conveying chain 29 can be regarded as one conveying unit, and the first axle 21, the second axle 22, the second driving sprocket 27, the second driven sprocket 28, and the second conveying chain 31 can be regarded as another conveying unit. The axles of the two conveying units are shared, the driving axle of one conveying unit is the supporting axle of the other conveying unit. The two conveying units can move independently of each other without interference and collision. The specific movement state of the conveying unit is intermittent movement-uniform speed movement-stationary-uniform speed movement, so as to realize the movement cycle of the assembly, conveying, scattering, and resetting of the railway fasteners one by one.

[0063] It can be understood that the conveying of the railway fastener in the prior art is mostly by using a conveying belt, and the operation efficiency is low, which affects the installation and construction efficiency of the whole railway fastener.

[0064] The differential conveying device 100 provided by the embodiment can combine multiple groups of conveying units together, has a more compact overall structure, does not affect each other during movement, and converts the original serial single operation into parallel multi-group simultaneous operation, thereby increasing the operation efficiency, saving time for the railway construction operation which has high operation efficiency requirement and short construction time, and being particularly suitable for application scenarios with multiple movement states and high operation efficiency requirement.

[0065] The rack 10 is composed of a steel structure, a chain supporting plate, a chain limiting baffle, a side baffle and the like, and is mainly used for fixing and supporting components such as a driving unit, a conveying chain and an axle.

[0066] The fastener box 40 is used for containing the complete railway fastener, so as to prevent the railway fastener from falling off during conveying.

[0067] The first driving unit 23 and the second driving unit 24 can be electrically driven by a speed reducer motor or driven by a hydraulic motor.

[0068] Preferably, the conveying mechanism 20 further comprises a third axle 32, a third driving unit 33, a third driving sprocket 34, a third driven sprocket 35 and a third conveying chain 36. The third axle 32 is arranged below the second axle 22. The third driving unit 33 is connected with the third axle 32 and used to drive the third axle 32 to rotate along the axis of the third axle 32. The first axle 21 and the second axle 22 are both sleeved with the third driven sprocket 35. The third conveying chain 36 is arranged around the third driving sprocket 34 and the third driven sprocket 35, and the fastener box 40 is arranged on the third conveying chain 36. The first driven sprocket 26 and the second driven sprocket 28 are both sleeved on the third axle 32.

[0069] That is, in the embodiment, three conveying units are specifically arranged, and the operation efficiency can be better improved by the three conveying chains. The driven sprocket of each conveying unit is correspondingly sleeved on the axle, so that each conveying chain is arranged around the three axles. That is, the driving axle of each conveying unit is a different axle, and the driven axle is another axle, but the driven axle can be the driving axle of another conveying unit. The driving sprocket and the driven sprocket are arranged on the same axle to ensure that the movements of the axles do not affect each other. Of course, in other embodiments, the number of conveying units can be more.

[0070] Preferably, the conveying mechanism 20 further comprises a fourth wheel shaft 37, which is arranged below the first wheel shaft 21 and is oppositely spaced from the third wheel shaft 32. The first driven sprocket 26, the second driven sprocket 28 and the third driven sprocket 35 are respectively sleeved on the fourth wheel shaft 37. That is, in the embodiment, four wheel shafts are arranged, which are distributed in a rectangular shape as a whole, and each wheel shaft is provided with a corresponding driven sprocket, so that the first conveying chain 29, the second conveying chain 31 and the third conveying chain 36 are respectively arranged around the four wheel shafts and are arranged in a rectangular ring shape as a whole, which better adapts to the corresponding structure on the railway fastener bulk car.

[0071] Preferably, the first driven sprocket 26 is sleeved on the second wheel shaft 22, the third wheel shaft 32 and the fourth wheel shaft 37 through bearings respectively; the second driven sprocket 28 is sleeved on the first wheel shaft 21, the third wheel shaft 32 and the fourth wheel shaft 37 through bearings respectively; and the third driven sprocket 35 is sleeved on the first wheel shaft 21, the second wheel shaft 22 and the fourth wheel shaft 37 through bearings respectively. Thus, wear between the driven sprocket and the wheel shaft is better avoided, and the service life is guaranteed.

[0072] Preferably, the differential conveying device 100 further comprises a guide device 50 mounted on the rack 10 to drive the differential conveying device 100 to move along the track of the railway line 200. Thus, the differential conveying device 100 can move on the railway line 200 through the guide device 50, and the guide device 50 can also provide vertical support for the conveying chain.

[0073] Preferably, the conveying chain in the conveying mechanism 20 is a side bending chain, that is, in the embodiment, the first conveying chain 29, the second conveying chain 31 and the third conveying chain 36 are all side bending chains. The rack 10 comprises a first rack 11 and a second rack 12. The first rack 11 and the second rack 12 are oppositely arranged along the conveying direction of the conveying mechanism 20, the conveying mechanism 20 is respectively mounted on the first rack 11 and the second rack 12, and the first rack 11 and the second rack 12 are hingedly connected to each other, and the hinge shaft of the first rack 11 and the second rack 12 is in the vertical direction.

[0074] It can be understood that the railway fastener bulk operation needs to pass through the straight section and the curve section. In the differential conveying device 100 provided in the embodiment, the first rack 11 and the second rack 12 are hinged to each other, and the conveying chains are all side bending chains, and the whole device can be bent and deviated to a certain extent. Thus, under the guidance of the guide device 50, the device can be deviated laterally along the track line when working in the curve section, so as to ensure that the relative position of the device and the sleeper bolt is deviated within a controllable range, facilitate the automatic positioning of the subsequent device for the railway fastener installation, and avoid the situation that the device blocks the sleeper bolt of the railway line when the deviation is large, and meet the needs of the curve section operation.

[0075] Specifically, in the embodiment, the guide device 50 adopts a non-powered wheel set, and walks along the railway line together with the railway fastener bulk vehicle during operation. The conveying chain is a standard pitch side bending chain with a K-shaped attachment plate.

[0076] Preferably, the end of the first rack 11 and the end of the second rack 12 are both provided with the guide device 50, so as to better ensure the stability of walking.

[0077] Preferably, the guide device 50 includes a wheel seat 51, a guide wheel set 52, and a connecting frame 53. The guide wheel set 52 is rotatably arranged on the wheel seat 51, and the connecting frame 53 connects the wheel seat 51 and the rack 10.

[0078] Preferably, the first rack 11 includes a first rack body 111 and a first rack connecting plate 112. The first rack connecting plate 112 is connected to the first rack body 111 and located on the side close to the second rack 12. The second rack 12 includes a second rack body 121 and a second rack connecting plate 122. The second rack connecting plate 122 is connected to the second rack body 121 and located on the side close to the first rack 11. The first rack connecting plate 112 and the second rack connecting plate 122 are hinged through a hinge shaft. Through this structure, the reliability of the connection between the first rack 11 and the second rack 12 is better guaranteed.

[0079] Preferably, in an embodiment, the differential conveying device 100 further includes a tensioning device, which is mainly used for tensioning the conveying chain, so as to ensure that the conveying chain has sufficient tension. The tensioning device can be composed of a tensioning seat, a tensioning block, a tensioning bolt, etc.

[0080] In the embodiment, six fastener boxes 40 can be arranged on each conveying chain, and the fastener boxes 40 on the three conveying chains can be designed to not collide with each other during the respective movement.

[0081] The differential conveying device 100 provided by the embodiment can improve conveying efficiency and meet the maintenance operation of railway fasteners of existing railway lines. The relative position between the bulk material position and the railway line remains unchanged, and the track tie bolt on the curve segment operation line can be avoided from being blocked by the device and cannot be automatically installed on the track tie bolt.

[0082] The above only describes the embodiments of the present application, and it should be pointed out that those skilled in the art can make improvements without departing from the concept of the present application, but these all belong to the protection scope of the present application.

Claims

1. A differential conveying device, characterized in that, The rack, the conveying mechanism, the fastener box; The conveying mechanism is installed on the rack; the conveying mechanism comprises at least a first wheel shaft, a second wheel shaft, a first driving unit, a second driving unit, a first driving sprocket, a first driven sprocket, a second driving sprocket, a second driven sprocket, a first conveying chain and a second conveying chain; The second wheel shaft is oppositely spaced from the first wheel shaft; The first driving unit is connected with the first wheel shaft to drive the first wheel shaft to rotate along its axis; The second driving unit is connected with the second wheel shaft to drive the second wheel shaft to rotate along its axis; The first driving sprocket is arranged on the first wheel shaft and can rotate with the first wheel shaft; The first driven sprocket is sleeved on the second wheel shaft; The second driving sprocket is arranged on the second wheel shaft and can rotate with the second wheel shaft; The second driven sprocket is sleeved on the first wheel shaft; The first conveying chain is arranged around the first driving sprocket and the first driven sprocket; The second conveying chain is arranged around the second driving sprocket and the second driven sprocket; The first conveying chain and the second conveying chain are both provided with the fastener box for receiving and fixing railway fasteners; The conveying mechanism further comprises a third wheel shaft, a third driving unit, a third driving sprocket, a third driven sprocket and a third conveying chain; The third wheel shaft is arranged below the second wheel shaft; The third driving unit is connected with the third wheel shaft to drive the third wheel shaft to rotate along its axis; The third driving sprocket is arranged on the third wheel shaft and can rotate with the third wheel shaft; The first wheel shaft and the second wheel shaft are both sleeved with the third driven sprocket; The third conveying chain is arranged around the third driving sprocket and the third driven sprocket, and the third conveying chain is provided with the fastener box; The third wheel shaft is respectively sleeved with the first driven sprocket and the second driven sprocket; The conveying mechanism further comprises a fourth wheel shaft; The fourth wheel shaft is arranged below the first wheel shaft and oppositely spaced from the third wheel shaft; The fourth wheel shaft is respectively sleeved with the first driven sprocket, the second driven sprocket and the third driven sprocket.

2. The differential conveyor of claim 1, wherein, The first driven sprocket is respectively sleeved on the second wheel shaft, the third wheel shaft and the fourth wheel shaft through bearings; The second driven sprocket is respectively sleeved on the first wheel shaft, the third wheel shaft and the fourth wheel shaft through bearings; The third driven sprocket is respectively sleeved on the first wheel shaft, the second wheel shaft and the fourth wheel shaft through bearings.

3. The differential conveying device of any one of claims 1 or 2, wherein, The guiding device is installed on the rack to drive the differential conveying device to move along the track trajectory of the railway.

4. The differential conveyor of claim 3, wherein, The conveying chains in the conveying mechanism are all side bending chains; The rack comprises a first rack and a second rack; the first rack and the second rack are oppositely arranged along the conveying direction of the conveying mechanism; the conveying mechanism is respectively installed on the first rack and the second rack; the first rack and the second rack are hingedly connected with each other, and the hinge axis of the first rack and the second rack is along the vertical direction.

5. The differential conveyor of claim 4, wherein, The first rack comprises a first rack body and a first rack connecting plate connected to the first rack body and located on a side close to the second rack; The second rack comprises a second rack body and a second rack connecting plate connected to the second rack body and located on a side close to the first rack; The first rack connecting plate and the second rack connecting plate are hinged through a hinge shaft.

6. The differential conveyor of claim 4, wherein, The end of the first rack and the end of the second rack are provided with the guiding device.

7. The differential conveyor of claim 6, wherein, The guiding device comprises a wheel seat, a pair of guiding wheels and a connecting frame. The pair of guiding wheels are rotatably arranged on the wheel seat. The connecting frame connects the wheel seat and the rack.

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