A gear-type track conveying system based on finite element analysis and its design method

Abstract

The present invention relates to the field of line construction technology, and specifically discloses a gear-type track conveying system based on finite element analysis and a design method thereof. The conveying system includes: a rack track, wherein the upper surface of the rack track is provided with a plurality of teeth arranged in sequence; a drive unit, wherein the transport locomotive includes an engine and a travel gear driven by the engine to rotate; the travel gear is meshed and connected with the rack track; a load car, wherein the load car is connected to the drive unit and travels along the rack track under the drive of the drive unit; and a track locking mechanism, wherein the track locking mechanism is installed in the load car, and when the speed of the load car descending exceeds a speed threshold, the rack track is locked, restricting the load car from continuing to move downward along the rack track. The present invention provides a gear-type track conveying system based on finite element analysis and a design method thereof, which can reduce the torque required to keep the load car on the track, thereby reducing the risk of the load car sliding down.

Description

Technical Field

[0001] The present invention relates to the technical field of line construction, and in particular to a gear-type track conveying system based on finite element analysis and a design method thereof. Background Art

[0002] Transmission line construction often requires the transfer of materials such as wires and operating tools. In complex construction scenarios, such as supplying materials from the foot of a mountain to the top, the complex terrain makes conventional transportation such as trucks difficult to navigate. Therefore, construction workers often have to transfer materials by hand or on their shoulders.

[0003] This method of transportation is not only inefficient, but also has a high probability of injury to construction workers, and the personal safety of construction workers cannot be guaranteed. In order to improve the efficiency of material transfer and ensure the personal safety of construction workers, a track conveying system specifically for power transmission line construction is proposed.

[0004] The existing rail conveying system includes a slide rail extending from the foot of the mountain to the top and a load carriage sliding on the slide rail. People at the top of the mountain can transport materials from the foot of the mountain to the top by pulling the load carriage up with a steel cable.

[0005] The problems with existing rail conveyor systems are:

[0006] ① The surface of the slide rail is completely smooth, and the resistance between it and the load carriage is small. The person at the top of the mountain needs to exert a lot of force to pull the load carriage. Moreover, during the entire pulling process, if there is even a slight slackness, the load carriage will slide down the slide rail rapidly, which is less safe.

[0007] ② If a drive unit such as a motor is installed on the load car to drive the load car along the track instead of pulling with a steel cable, since the surface of the slide rail is completely smooth, the maximum static friction between the wheels of the load car and the slide rail is small, and the wheels are prone to slipping. When the load is heavy, the slipping problem is particularly obvious.

[0008] Therefore, it is necessary to improve the existing rail conveying system to solve the problem that its loaded carriages are prone to slipping and falling, which poses a high safety risk.

[0009] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Summary of the Invention

[0010] An object of the present invention is to provide a gear-type track conveying system and a design method thereof based on finite element analysis, which can reduce the torque required to keep the loaded carriage on the track, thereby reducing the risk of the loaded carriage sliding down.

[0011] To achieve the above objectives, the present invention provides a gear-type track conveying system based on finite element analysis, comprising:

[0012] A rack rail, wherein the upper surface of the rack rail is provided with a plurality of teeth arranged in sequence;

[0013] A driving unit, the driving unit comprising an engine and a travel gear driven to rotate by the engine; the travel gear is meshed and connected with the rack track;

[0014] a load carriage connected to the driving unit and driven by the driving unit to move along the rack track;

[0015] A rail locking mechanism is installed in the load-carrying compartment. When the load-carrying compartment's downward speed exceeds a speed threshold, the rack rail is locked, restricting the load-carrying compartment from continuing to move downward along the rack rail.

[0016] Optionally, a reduction gear box is provided between the driving unit and the traveling gear.

[0017] Optionally, the track locking mechanism includes:

[0018] A speed sensor is mounted on the load carriage and is used to detect the travel speed of the load carriage;

[0019] The locking rail assembly includes two brake arms arranged on both sides of the rack rail, each of the brake arms is connected to the driving end of a linear drive mechanism; the linear drive mechanism is electrically connected to the speed sensor, and when the travel speed detected by the speed sensor exceeds the speed threshold, the linear drive mechanism drives the corresponding brake arm to move toward the other brake arm to cooperate with the other brake arm to clamp the rack rail.

[0020] Optionally, the rack rail is provided with a plurality of brake grooves arranged at intervals, and the rail locking mechanism includes:

[0021] a brake arm, the brake arm being slidably connected to the load carriage; a slot being provided at one end of the brake arm, a guide protrusion being provided on a slot wall of the slot; and the other end of the brake arm being opposite to a surface of the rack track having the brake slot provided thereon;

[0022] a brake shaft, one end of which is inserted into the slot and rotatably connected to the brake arm; an arc-shaped guide groove for inserting the guide protrusion is provided on the circumferential surface of the brake shaft;

[0023] an elastic return member, one end of which is connected to the slot wall of the slot and the other end of which is connected to the brake shaft; in a natural state, the elastic return member drives the guide protrusion to slide to a first extreme position of the arc-shaped guide slot close to the brake slot, so that the brake arm slides forward to disengage from the brake slot;

[0024] A non-electric drive component is connected to the other end of the brake shaft and is used to drive the brake shaft to rotate until the guide protrusion is located in the second extreme position of the arc-shaped guide groove away from the brake groove when the downward speed of the load-carrying carriage exceeds a speed threshold, so that the brake arm slides in the opposite direction to be inserted into the brake groove.

[0025] Optionally, the elastic return member is a coil spring sleeved on the brake shaft.

[0026] Optionally, the elastic return member includes at least two tension springs, and the tension springs are evenly arranged around the brake shaft.

[0027] Optionally, the non-electric drive component includes:

[0028] a connecting rod, one end of which is connected to the brake shaft for synchronous rotation;

[0029] A windshield is connected to the other end of the connecting rod.

[0030] Optionally, the connecting rod is detachably connected to the windshield.

[0031] On the other hand, a design method is provided for manufacturing any of the gear-type track conveying systems based on finite element analysis, comprising:

[0032] Construct 3D models of the rack track, drive unit, load carriage, and track locking mechanism;

[0033] Performing stress analysis on the three-dimensional model using finite element analysis software to obtain torque parameters generated on the rack track when the load carriage rests on the rack track in a fully loaded state;

[0034] determining the required lower performance limits of the rack track and the travel gear according to the torque parameter;

[0035] According to the lower performance limit, suitable materials are selected to make the rack track and travel gear.

[0036] The beneficial effect of the present invention is to provide a gear track conveying system and a design method thereof based on finite element analysis:

[0037] On the one hand, the traditional smooth track is set as a rack track with teeth. When the traveling gear moves on the rack track, whether it is moving up or down, the teeth can provide the traveling gear with a large supporting force parallel to the extension direction of the rack track, thereby avoiding the occurrence of slipping between the traveling gear and the rack track to the greatest extent;

[0038] On the other hand, when an unexpected situation occurs and the load carriage rapidly descends, the track locking mechanism can lock the rack track, restricting the load carriage from continuing to move downward along the rack track, further ensuring the personal safety of construction workers at the foot of the mountain. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 1 is a side view of a gear-type track conveying system based on finite element analysis provided in the first embodiment of the present invention;

[0041] Figure 2 1 is a front schematic diagram of a gear-type track conveying system based on finite element analysis provided in the first embodiment of the present invention;

[0042] Figure 3 1 is a side view of a gear-type track conveying system based on finite element analysis provided in the second embodiment of the present invention;

[0043] Figure 4 1 is a front schematic diagram of a gear-type track conveying system based on finite element analysis provided in the second embodiment of the present invention;

[0044] Figure 5 A schematic structural diagram of a track locking mechanism provided in the second embodiment of the present invention;

[0045] Figure 6 This is a flow chart of the design method provided in Example 3 of the present invention.

[0046] In the picture:

[0047] 1. Rack rail; 101. Teeth; 102. Brake groove;

[0048] 2. Drive unit;

[0049] 3. Loading compartment;

[0050] 4. Rail locking mechanism;

[0051] 401, speed sensor;

[0052] 402, locking rail assembly; 4021, brake arm; 4021a, slot; 4021b, guide protrusion; 4022, linear drive mechanism;

[0053] 403, brake shaft; 4031, arc-shaped guide groove; 4031a, first limit position; 4031b, second limit position;

[0054] 404, elastic reset member;

[0055] 405, non-electric drive assembly; 4051, connecting rod; 4052, windshield;

[0056] 406, mounting bracket;

[0057] 407. Guide rail slider assembly. DETAILED DESCRIPTION

[0058] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the present embodiment will be clearly and completely described below in conjunction with the drawings in the present embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0059] Example 1

[0060] This embodiment provides a gear-type rail conveying system based on finite element analysis, which is suitable for the application scenario of transporting materials between the top and the foot of the mountain at the construction site of the power transmission line. It can solve the problem of the load-carrying carriage 3 in the existing rail conveying system being prone to slipping and falling when traveling along the track, thereby reducing the safety risks during the construction process.

[0061] See also Figure 1 and Figure 2In this embodiment, the gear-type rail conveying system based on finite element analysis includes a rack rail 1, a drive unit 2, a load carriage 3, and a rail locking mechanism 4. The upper surface of the rack rail 1 is provided with a plurality of sequentially arranged teeth 101; the drive unit 2 includes an engine and a travel gear driven by the engine to rotate; the travel gear is meshed and connected with the rack rail 1; the load carriage 3 is connected to the drive unit 2 and travels along the rack rail 1 under the drive of the drive unit 2; the rail locking mechanism 4 is installed in the load carriage 3. When the downward speed of the load carriage 3 exceeds a speed threshold, the rack rail 1 is locked, restricting the load carriage 3 from continuing to move downward along the rack rail 1.

[0062] Optionally, the engine is a diesel engine or a gasoline engine. Of course, in some other embodiments, the engine can also be an electric motor. Further, a reduction gearbox is provided between the drive unit 2 and the travel gear to control the travel speed of the travel gear.

[0063] It is understandable that after the engine is started, the traveling gear will roll forward on the rack track 1, thereby driving the load carriage 3 to move along the track to complete the transportation of materials.

[0064] The gear-type track conveying system provided in this embodiment based on finite element analysis:

[0065] On the one hand, the traditional smooth track is set as a rack track 1 with teeth 101. When the traveling gear travels on the rack track 1, whether it is moving up or down, the teeth 101 can provide the traveling gear with a large supporting force parallel to the extension direction of the rack track 1, thereby avoiding the occurrence of slipping between the traveling gear and the rack track 1 to the greatest extent;

[0066] On the other hand, when an accident occurs and the load carriage 3 rapidly descends, the track locking mechanism 4 can lock the rack track 1, restricting the load carriage 3 from continuing to move downward along the rack track 1, further ensuring the personal safety of construction workers at the foot of the mountain.

[0067] In this embodiment, the track locking mechanism 4 includes a speed sensor 401 and a track locking assembly 402. The speed sensor 401 is mounted on the load carriage 3 and is used to detect the travel speed of the load carriage 3. The track locking assembly 402 includes two brake arms 4021 arranged on both sides of the rack track 1, each brake arm 4021 being connected to a driving end of a linear drive mechanism 4022; the linear drive mechanism 4022 is electrically connected to the speed sensor 401. When the travel speed detected by the speed sensor 401 exceeds the speed threshold, the linear drive mechanism 4022 drives the corresponding brake arm 4021 to move toward the other brake arm 4021 to cooperate with the other brake arm 4021 to clamp the rack track 1.

[0068] Optionally, the linear drive mechanism 4022 is a cylinder, a hydraulic cylinder, or a motor screw slider assembly, etc., which is not limited in this embodiment.

[0069] Specifically, a speed threshold, such as 10 m / s or 15 m / s, can be preset in the controller. Under normal circumstances, the power output of the drive unit 2 should control the load carriage 3 to travel within the speed threshold. Therefore, when the speed sensor 401 detects that the travel speed exceeds the speed threshold, it can be considered that the load carriage 3 is currently out of control. The linear drive mechanism 4022 can be controlled to extend, and the two brake arms 4021 can be moved closer together to grip the rack rail 1, thereby applying the brakes to prevent the load carriage 3 and the drive unit 2 from continuing to slide down, thereby preventing construction workers from being injured.

[0070] In summary, the gear-type track conveying system based on finite element analysis provided in this embodiment has the following advantages:

[0071] ① The travel gear is meshed with the rack track 1 and is not easy to slip;

[0072] ② When the loaded carriage 3 is moving out of control and at high speed, the brakes can be automatically applied.

[0073] Example 2

[0074] This embodiment provides another gear-type track conveying system based on finite element analysis, which differs from the first embodiment in that:

[0075] The track locking mechanism 4 provided in this embodiment is different from that in the first embodiment.

[0076] See also Figures 3 to 5 Specifically, in this embodiment, the rack rail 1 is provided with a plurality of brake grooves 102 arranged at intervals.

[0077] The track locking mechanism 4 includes a brake arm 4021 , a brake shaft 403 , an elastic reset member 404 and a non-electric drive assembly 405 .

[0078] In which, the brake arm 4021 is slidingly connected to the load-carrying compartment 3 through a guide rail slider assembly 407; one end of the brake arm 4021 is provided with a slot 4021a, and the slot wall of the slot 4021a is provided with a guide protrusion 4021b; the other end of the brake arm 4021 is opposite to the surface of the rack rail 1 where the brake groove 102 is provided. The middle part of the brake shaft 403 is mounted on a mounting bracket 406 fixed to the load-carrying compartment 3 through a bearing, and one end of the brake shaft 403 is inserted into the slot 4021a and is rotatably connected to the brake arm 4021; an arc-shaped guide groove 4031 for inserting the guide protrusion 4021b is provided on the circumferential surface of the brake shaft 403; the non-electric drive component 405 is connected to the other end of the brake shaft 403, and is used to drive the brake shaft 403 to rotate to the second extreme position 4031b where the guide protrusion 4021b is located in the arc-shaped guide groove 4031 away from the brake groove 102 when the downward speed of the load-carrying compartment 3 exceeds the speed threshold, so that the brake arm 4021 slides in the opposite direction to be inserted into the brake groove 102.

[0079] One end of the elastic return member 404 is connected to the groove wall of the slot 4021a, and the other end is connected to the brake shaft 403; in a natural state, the elastic return member 404 drives the guide protrusion 4021b to slide to the first extreme position 4031a of the arc-shaped guide groove 4031 close to the brake groove 102, so that the brake arm 4021 slides forward to disengage from the brake groove 102.

[0080] Furthermore, the non-electric drive assembly 405 includes a connecting rod 4051 and a windshield 4052. One end of the connecting rod 4051 is connected to the brake shaft 403 for synchronous rotation; and the windshield 4052 is connected to the other end of the connecting rod 4051.

[0081] The gear-type track conveying system based on finite element analysis provided in this embodiment has the following working process:

[0082] S201: Under normal circumstances, the elastic return member 404 drives the guide protrusion 4021b to slide to the first extreme position 4031a of the arc-shaped guide groove 4031 close to the brake groove 102, so that the brake arm 4021 slides forward to disengage from the brake groove 102; the driving unit 2 drives the travel gear to rotate, thereby driving the load carriage 3 to travel on the rack track 1;

[0083] S202: When an abnormal situation occurs and causes the load carriage 3 to lose control, the speed of the load carriage 3 gradually increases; at the same time, the wind resistance experienced by the windshield 4052 also gradually increases;

[0084] When the wind resistance on the windshield 4052 is large enough, the wind resistance will overcome the elastic force of the elastic reset member 404, driving the brake shaft 403 to rotate;

[0085] It should be noted that, during the rotation of the brake shaft 403, the guide protrusion 4021b will slide along the arc-shaped guide groove 4031 from the first extreme position 4031a to the second extreme position 4031b. Since the horizontal position of the brake shaft 403 is fixed by the mounting bracket 406, as the guide protrusion 4021b slides, the brake arm 4021 will slide toward the rack guide rail.

[0086] S203: When the guide protrusion 4021b reaches the second limit position 4031b, the brake arm 4021 is sufficiently inserted into the brake groove 102 to complete the braking operation;

[0087] S204: When the load carriage 3 is braked, the wind resistance on the windshield 4052 is reduced, the elastic reset member 404 drives the brake shaft 403 to rotate in the opposite direction, and the guide boss slides to the first extreme position 4031a again. The load carriage 3 is automatically unlocked and continues to move downward to feed the material.

[0088] It should be noted that the relationship between the traveling speed of the load compartment 3 and the windshield wind can be obtained through experiments and other means, and windshields 4052 of different sizes can be prepared, and the windshield 4052 can be detachably connected to the connecting rod 4051. When the speed threshold needs to be changed, it is only necessary to replace a different windshield 4052.

[0089] The non-electric drive assembly 405 provided in this embodiment brakes the load compartment 3 through wind resistance. It is a purely mechanical structure and does not require electrical facilities, which is conducive to working in harsh environments.

[0090] In this embodiment, the elastic return member 404 is a coil spring sleeved on the brake shaft 403 , with an inner end of the coil spring fixed to the brake shaft 403 and an outer end fixed to the inner wall of the slot 4021 a .

[0091] In some other embodiments, the elastic return member 404 may also be composed of at least two tension springs, each of which has one end fixed to the brake shaft 403 and the other end fixed to the inner wall of the slot 4021a. The tension springs are evenly arranged around the brake shaft 403, that is, arranged like wheel spokes. When the brake shaft 403 rotates relative to the brake arm 4021, the tension springs can quickly reset the brake shaft 403 and brake arm 4021.

[0092] The gear-type track conveying system based on finite element analysis provided in this embodiment has the following advantages:

[0093] ① The rail locking mechanism 4 automatically locks the rack rail 1 as the vehicle speed increases, and automatically releases the locking state as the vehicle speed decreases. This is a purely automatic operation without the need for human intervention.

[0094] ② The rail locking mechanism 4 does not require electrical components such as cylinders or motors, is not restricted by power supply, and can work in harsh environments.

[0095] Example 3

[0096] This embodiment provides a design method that is applicable to application scenarios in the field of line construction, and can improve the design efficiency of the gear-type track conveying system based on finite element analysis provided in Embodiments 1 and 2. The design method is implemented through software and / or hardware.

[0097] See also Figure 6 , the design method comprises the following steps:

[0098] S301: Constructing a three-dimensional model of the rack track, drive unit, load carriage, and track locking mechanism;

[0099] S302: performing stress analysis on the three-dimensional model using finite element analysis software to obtain torque parameters generated on the rack track when the load carriage rests on the rack track in a fully loaded state;

[0100] S303: Determine the required lower performance limits of the rack track and the travel gear according to the torque parameter;

[0101] S304: Select appropriate materials according to the performance lower limit to manufacture the rack track and travel gear.

[0102] The design method provided in this embodiment can obtain relevant dimensional parameters after three-dimensional modeling of the gear track conveyor system based on finite element analysis. Then, by performing stress analysis at various locations using finite element analysis software, the force conditions at various locations during operation of the gear track conveyor system can be determined. Then, materials for making the rack track and travel gear can be selected based on the force conditions, greatly improving the efficiency and accuracy of material selection.

[0103] In the embodiments provided in this application, it should be understood that the disclosed systems, units, devices and methods can be implemented in other ways. For example, all the embodiments described above are merely schematic. For example, the division of the above-mentioned units or modules is only a logical function division. There may be other division methods in actual implementation, such as multiple units, modules and components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0104] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0105] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0106] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a computer-readable storage medium, including a number of instructions for enabling a terminal device (which can be a mobile phone, notebook, or other electronic device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0107] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A gear track conveying system based on finite element analysis, characterized in that: include: A rack rail, wherein the upper surface of the rack rail is provided with a plurality of teeth arranged in sequence; A driving unit, the driving unit comprising an engine and a travel gear driven to rotate by the engine; the travel gear is meshed and connected with the rack track; a load carriage connected to the driving unit and driven by the driving unit to move along the rack track; A rail locking mechanism is installed in the load carriage, and when the load carriage's downward speed exceeds a speed threshold, the rail locking mechanism locks the rack rail, restricting the load carriage from continuing to move downward along the rack rail; in, The rack rail is provided with a plurality of brake grooves arranged at intervals, and the rail locking mechanism includes: a brake arm, the brake arm being slidably connected to the load carriage; a slot being provided at one end of the brake arm, a guide protrusion being provided on a slot wall of the slot; and the other end of the brake arm being opposite to a surface of the rack track having the brake slot provided thereon; a brake shaft, one end of which is inserted into the slot and rotatably connected to the brake arm; an arc-shaped guide groove for inserting the guide protrusion is provided on the circumferential surface of the brake shaft; an elastic return member, one end of which is connected to the slot wall of the slot and the other end of which is connected to the brake shaft; in a natural state, the elastic return member drives the guide protrusion to slide to a first extreme position of the arc-shaped guide slot close to the brake slot, so that the brake arm slides forward to disengage from the brake slot; a non-electric drive assembly connected to the other end of the brake shaft and configured to drive the brake shaft to rotate until the guide protrusion is located in the second extreme position of the arc-shaped guide groove away from the brake groove when the downward speed of the load carriage exceeds a speed threshold, so that the brake arm slides in the opposite direction and is inserted into the brake groove; The non-electric drive assembly comprises: a connecting rod, one end of which is connected to the brake shaft for synchronous rotation; A windshield is connected to the other end of the connecting rod.

2. The gear-type track conveying system based on finite element analysis according to claim 1, characterized in that: A reduction gearbox is provided between the driving unit and the traveling gear.

3. The gear-type track conveying system based on finite element analysis according to claim 1, characterized in that: The rail locking mechanism comprises: A speed sensor is mounted on the load carriage and is used to detect the travel speed of the load carriage; The locking rail assembly includes two brake arms arranged on both sides of the rack rail, each of the brake arms is connected to the driving end of a linear drive mechanism; the linear drive mechanism is electrically connected to the speed sensor, and when the travel speed detected by the speed sensor exceeds the speed threshold, the linear drive mechanism drives the corresponding brake arm to move toward the other brake arm to cooperate with the other brake arm to clamp the rack rail.

4. The gear-type track conveying system based on finite element analysis according to claim 1, characterized in that: The elastic reset member is a coil spring sleeved on the brake shaft.

5. The gear-type track conveying system based on finite element analysis according to claim 1, characterized in that: The elastic return member includes at least two tension springs, and the tension springs are evenly arranged around the brake shaft.

6. The gear-type track conveying system based on finite element analysis according to claim 1, characterized in that: The connecting rod is detachably connected to the wind shield.

7. A design method for manufacturing the gear-type track conveying system based on finite element analysis according to any one of claims 1 to 6, characterized in that: include: Construct 3D models of the rack track, drive unit, load carriage, and track locking mechanism; Performing stress analysis on the three-dimensional model using finite element analysis software to obtain torque parameters generated on the rack track when the load carriage rests on the rack track in a fully loaded state; determining the required lower performance limits of the rack track and the travel gear according to the torque parameter; According to the lower performance limit, suitable materials are selected to make the rack track and travel gear.

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