Sectional type semi-trailer power van and unit loading method

Abstract

The invention discloses a sectional type semi-trailer power van. The sectional type semi-trailer power van comprises a chassis connected with a van head and a plurality of carriages arranged above the chassis. The chassis comprises a first supporting part close to the vehicle head, the end, away from the vehicle head, of the first supporting part is bent downwards to form a neck part, and the end, away from the vehicle head, of the first supporting part is bent upwards from the neck part to form a second supporting part parallel to the first supporting part; a stress relieving assembly is arranged below one end, close to the neck part, of the second supporting part; periodic vibration is generated by using the impact rod, stress concentrated on the neck can be dispersed, and local stress is prevented from being too large. And through a method of enhancing support and actively dispersing stress, the safety in the installation process is remarkably improved, and damage caused by improper installation is reduced. Installation stress is effectively managed, damage to the neck of the vehicle when the compartment body is frequently loaded and unloaded is reduced, and the overall service life of the vehicle can be prolonged.

Description

Technical Field

[0001] The invention discloses a sectional semi-trailer power supply vehicle and a method for installing a machine set, belonging to the technical field of power supply vehicles. Background Art

[0002] The segmented semi-trailer power supply vehicle is a special power supply vehicle, which is usually used in occasions that require mobile power support, such as temporary power supply, large-scale events, construction sites, remote work areas, etc. This vehicle combines the functions of a semi-trailer and a power supply unit, and can provide a stable power supply and have a certain transportation capacity. The so-called "segmented" means that the power supply system of this power supply vehicle is designed to be segmented or modularly configured, which is convenient for adjustment and optimization according to actual needs.

[0003] The segmented semi-trailer power supply vehicle consists of multiple modules. The trailer system is part of the semi-trailer and is used to connect to the tractor and transport the power supply equipment. The power supply device includes modules such as generators, transformers, and battery energy storage systems. Each module can work alone or in combination as needed. Power management module: used to monitor and adjust the output of different power modules to ensure stable and reliable power. The modular design of the power supply device in the segmented design allows it to be split or combined according to actual load requirements or transportation requirements.

[0004] During the design and use of existing semi-trailer power vehicles, especially at the neck (i.e. the connection between the trailer and the tractor), it is easy for the car body to deform to varying degrees.

[0005] As the neck needs to withstand greater traction and impact forces, existing semi-trailer power vehicles will inevitably form installation stress during the installation of the split body, and the vehicle body cannot effectively disperse these installation stresses independently, especially in the neck, where the stress is concentrated and deformation is prone to occur.

[0006] Therefore, a solution is designed to effectively solve the problem that the vehicle body cannot effectively disperse the installation stress independently during the installation process of the split body, especially a method for installing a segmented semi-trailer power supply vehicle and a unit that is prone to deformation due to concentrated stress on the neck. Summary of the invention

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a segmented semi-trailer power supply vehicle and a method for installing a unit to solve the problems of the prior art.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solutions: A sectional semi-trailer power supply vehicle, a chassis connected to the front of the vehicle, and a plurality of carriages arranged above the chassis; The chassis comprises a first support portion close to the front of the vehicle, the first support portion is bent downward at one end away from the front of the vehicle to form a neck, and is bent upward from the neck to form a second support portion parallel to the first support portion; A stress relief component is provided below the second support portion near one end of the neck; The stress relief assembly includes a sleeve installed below the second support portion, a support rod slidably installed inside the sleeve, and a first driving assembly driving the support rod to extend / retract; a first pressure plate disposed on the outer ring of the sleeve close to the second support portion; An impact assembly disposed at the sleeve, the impact assembly comprising an impact rod, and a second driving assembly driving the impact rod to repeatedly strike the lower end surface of the first pressure plate; A control module, wherein the control module is electrically connected to the first drive assembly and the second drive assembly; Controlling the first driving assembly through the control module to drive the support rod to extend; The control module controls the second driving assembly to drive the impact rod to impact the first pressure plate.

[0009] As a further improvement, the first pressure plate is located below the neck and fits under the second supporting portion.

[0010] As a further improvement, the impact assembly includes a mounting plate welded to the outer side of the sleeve, and the mounting plate is folded outwardly by 90° toward one end of the neck to form a guide plate; An eccentric rotating disk is rotatably arranged on the mounting plate, wherein the central axis of the eccentric rotating disk is connected to the output end of the second driving assembly, a first support rod is rotatably mounted near the edge of the eccentric rotating disk, and a second support rod is rotatably mounted on the mounting plate in the middle, and one end of the first support rod is rotatably connected to one end of the second support rod through an axle pin; Two impact rods are rotatably mounted at two ends of the second support rod, and the impact rods penetrate the guide plate; The connecting end of the first support rod and the eccentric rotating disk and the connecting end of the second support rod away from the first support rod and the impact rod are both provided with long slot holes, and the eccentric rotating disk and the first support rod and the second support rod can realize reciprocating motion through the cooperation of the long slot holes.

[0011] As a further improvement, the sleeve is fixedly installed below the second supporting portion.

[0012] As a further improvement, the sleeve is rotatably mounted below the second support portion.

[0013] As a further improvement, a protruding first rotating part is arranged below the second supporting part, and a concave second rotating part is arranged above the sleeve, and the second rotating part is loosely matched with the first rotating part, and the shaft rod penetrates the first rotating part and the second rotating part.

[0014] As a further improvement, a cross groove is provided at one end of the second rotating part facing outward, and a cross protrusion matching the cross groove is provided at one end of the shaft rod facing outward. The shaft rod is pulled outward to drive the cross protrusion to disengage from the cross groove, and the sleeve is in a rotatable active state. The shaft rod is pushed inward to drive the cross protrusion to insert into the cross groove, and the sleeve is in a non-rotatable locked state.

[0015] A method for installing a unit on a sectionalized semi-trailer power supply vehicle, characterized in that the steps include: S1: Vehicle goes online; The semi-finished trailer box assembly is carried onto the assembly line by a tractor to ensure that the box can be placed stably. The first driving assembly on the chassis is started to extend the support rod and contact the ground to keep the box stable. S2: pre-buried wire wiring; According to the electrical schematic diagram and electrical wiring diagram, complete the pre-embedding of the electrical wiring harness inside the car; S3: Car body primer spraying and foaming; Primer spraying is performed on the compartment to ensure anti-corrosion and anti-rust properties, and then foaming is performed on the compartment to enhance thermal insulation and reduce noise; S4: Unit assembly installation; Remove the roof, use a crane or a traveling crane to hoist the modified unit assembly into the carriage, and install and fix it in the original holes; S5: Welding of ceiling and expansion joint frame; Lift the ceiling back onto the top of the carriage, perform welding, perform welding on the expansion joint frame, and complete the carriage installation; S6, assembly stress relief; The control module controls the impact rod to adopt a third frequency to strike and vibrate the chassis within a third preset time.

[0016] As a further improvement, in step S4, the specific steps are: S41, hoisting the first box body and placing it on the first support part, starting the second driving assembly to control the impact rod to use the first frequency through the control module, and striking and vibrating the chassis within a first preset time; S42, hoisting the second car body and placing it on the second support part, starting the second driving assembly to control the impact rod to adopt the second frequency through the control module, and striking and vibrating the chassis within the second preset time.

[0017] As a further improvement, the first preset time is 60S-80S, the second preset time is 30S-40S, the third preset time is 40S-60S, the first frequency is 20HZ-40HZ, the second frequency is 10HZ-20HZ, and the third frequency is 20HZ-30HZ.

[0018] The beneficial effects of the present invention are: The present invention uses an impact rod to generate periodic vibration, which can help disperse the stress concentrated on the neck and prevent excessive local force.

[0019] With the help of the control module, the stress relief mode can be adjusted to dynamically adjust the position of the support rod and the working state of the impact rod to ensure stability and safety during the entire installation process. When installing the split compartment, first ensure that the docking preparations for the power supply vehicle chassis and each compartment are completed, and move the compartment to the predetermined position according to the normal process.

[0020] The first drive assembly is started through the control module, so that the support rod extends from the sleeve, is adjusted to an appropriate position and length, and abuts against the ground to provide additional support force to the second support part (i.e., the neck) to help it withstand the force brought by the upcoming installation operation.

[0021] During the installation of the car body, since the support rod has provided a certain support effect, the second drive assembly can be further started through the control module, so that the impact rod can periodically hit the lower end surface of the first pressure plate. This can produce a vibration effect and help disperse the local stress applied to the neck.

[0022] During the entire installation process, the control module is used to adjust the striking speed and frequency of the impact rod in real time. After the carriage above the neck is placed, the striking time is first 60S-80S, and the striking frequency is 20HZ-40HZ. After the carriage below the neck is placed, it is switched to 30S-40S, and the striking frequency is 10HZ-20HZ.

[0023] Eliminate stress at high frequency first and then at low frequency to ensure that the neck will not be deformed due to excessive stress.

[0024] After the split compartment is fully installed, stop working on all components, retract the support rods, and check the integrity and sealing of the installation parts.

[0025] During the installation process, the support rod is extended to provide additional mechanical support for the neck, which can effectively reduce the force directly borne by this area and avoid deformation due to excessive concentration of force points.

[0026] By enhancing support and actively dispersing stress, the safety of the installation process is significantly improved, and damage caused by improper installation is reduced. Effective management of installation stress reduces damage to the neck during frequent loading and unloading of the vehicle body, which helps to extend the overall service life of the vehicle. Operators only need to focus on the installation of the body, without having to worry about structural damage caused by installation, which improves work efficiency. Among them, the design of the stress relief component can adapt to the installation requirements of split bodies of different sizes and weights, and has good versatility and flexibility.

[0027] In summary, the segmented semi-trailer power supply vehicle and the unit installation method effectively solve the structural problems caused by stress concentration during the installation of the split body, which not only improves the safety and efficiency of the installation process, but also enhances the structural stability and service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 The present invention is a schematic diagram of the side structure of a segmented semi-trailer power supply vehicle.

[0030] Figure 2 yes Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0031] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at point A in the middle.

[0032] Figure 4 yes Figure 1 Schematic diagram of the medial and lateral cross-section structure.

[0033] Figure 5 yes Figure 2 Enlarged structural diagram at point C in the middle.

[0034] Figure 6 It is a schematic diagram of a stowed state of another embodiment of a sectional semi-trailer power supply vehicle of the present invention.

[0035] Figure 7 It is a schematic diagram of the unfolded state of another embodiment of a segmented semi-trailer power supply vehicle of the present invention.

[0036] Figure 8 It is a schematic diagram of a side view structure of a shaft rod of the present invention.

[0037] Fig. 9Schematic diagram of the connection state of the first support rod and the second support rod.

[0038] Fig.10 It is a schematic diagram of module control of a segmented semi-trailer power supply vehicle of the present invention.

[0039] Fig.11 The present invention is a step diagram of a method for installing a unit on a sectional semi-trailer power supply vehicle.

[0040] 1. Car head; 2. Chassis; 31. First carriage; 32. Second carriage; 33. Third carriage; 21. First support part; 22. Neck; 23. Second support part; 41. Sleeve; 42. Support rod; 43. First pressure plate; 431. Second pressure plate; 44. Impact rod; 3. Control module; 45. Mounting plate; 46. Guide plate; 47. Eccentric turntable; 48. First support rod; 49. Second support rod; 410. Motor; 415. Hydraulic pump; 481. Long slot; 231. First rotating part; 411. Second rotating part; 412. Shaft; 413. Cross groove; 414. Cross protrusion. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than 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. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. 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.

[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] Reference Figure 1-5 , Figure 8 , Fig.10 As shown, a segmented semi-trailer power supply vehicle comprises: A chassis 2 connected to the vehicle head 1, and a plurality of carriages arranged above the chassis 2; The chassis 2 includes a first support portion 21 close to the front of the vehicle 1, the first support portion 21 is bent downward at one end away from the front of the vehicle 1 to form a neck 22, and is bent upward from the neck 22 to form a second support portion 23 parallel to the first support portion 21; A stress relief component is disposed below one end of the second support portion 23 close to the neck 22; The stress relief assembly includes at least two sleeves 41 installed below the second support portion 23, a support rod 42 slidably installed inside the sleeve 41, and a first driving assembly that drives the support rod 42 to extend / retract; wherein, in this embodiment, two sleeves 41 are provided.

[0044] A first pressure plate 43 disposed on the outer ring of the sleeve 41 close to the second support portion 23; An impact assembly disposed at the sleeve 41, the impact assembly comprising an impact rod 44, and a second driving assembly driving the impact rod 44 to repeatedly strike the lower end surface of the first pressure plate 43; A control module 3, wherein the control module 3 is electrically connected to the first drive component and the second drive component; The control module 3 controls the first driving assembly to drive the support rod 42 to extend; The control module 3 controls the second driving assembly to drive the impact rod 44 to impact the first pressure plate 43 .

[0045] During the installation of the car body, since the support rod 42 has provided a certain support effect, the second drive assembly can be further started through the control module 3, so that the impact rod 44 can periodically hit the lower end surface of the first pressure plate 43. This can produce a vibration effect and help disperse the local stress applied to the neck 22.

[0046] During the entire installation process, the striking speed and frequency of the impact rod 44 are adjusted in real time through the control module 3. After the carriage above the neck 22 is placed, the striking time is first 60S-80S, and the striking frequency is 20HZ-40HZ. After the carriage below the neck 22 is placed, it is switched to 30S-40S, and the striking frequency is 10HZ-20HZ.

[0047] The stress of high frequency is eliminated first and then low frequency to ensure that the neck 22 will not be deformed due to excessive stress.

[0048] After the split compartment is completely installed, the operation of all components is stopped, the support rod 42 is retracted, and the integrity and sealing of the installation part are checked.

[0049] During the installation process, the support rod 42 is extended to provide additional mechanical support for the neck 22, which can effectively reduce the force directly borne by this area and avoid deformation caused by excessive concentration of force points.

[0050] By using the impact rod 44 to generate periodic vibrations, it is possible to help disperse the stress concentrated on the neck 22 and prevent excessive local force.

[0051] With the help of the control module 3, the stress relief mode can be adjusted to dynamically adjust the position of the support rod 42 and the working state of the impact rod 44 to ensure the stability and safety of the entire installation process. Specifically: When installing the split compartment, first ensure that the docking preparations of the power supply vehicle chassis 2 and each compartment are completed, and then move the compartment to a predetermined position according to the conventional process.

[0052] The first drive assembly is activated through the control module 3, so that the support rod 42 extends from the sleeve 41, is adjusted to an appropriate position and length, and abuts against the ground to provide additional supporting force to the second support part 23 (i.e., the neck 22) to help it withstand the force brought by the upcoming installation operation.

[0053] By enhancing support and actively dispersing stress, the safety of the installation process is significantly improved, and damage caused by improper installation is reduced. Effective management of installation stress reduces damage to the neck 22 during frequent loading and unloading of the vehicle body, which helps to extend the overall service life of the vehicle. Operators only need to focus on the installation of the body, without having to worry about structural damage caused by installation, which improves work efficiency. Among them, the design of the stress relief component can adapt to the installation requirements of split bodies of different sizes and weights, and has good versatility and flexibility.

[0054] The first driving component is a hydraulic pump 415 , and the second driving component is a motor 410 .

[0055] The first drive assembly uses a hydraulic pump 415, which can provide a large thrust, which is very important for the support rod 42. The support rod 42 needs to provide sufficient support during the installation process to ensure that the goose neck 22 can withstand external stress without deformation. The hydraulic pump 415 can be fixedly installed under the chassis 2. In other embodiments, an external hydraulic pump 415 can also be used.

[0056] The hydraulic system has good stability and reliability when bearing heavy loads, can maintain a constant support force for a long time, and is not prone to sudden force changes, which is very important for the installation process of the split box.

[0057] The second driving assembly adopts a motor 410, which can achieve high-precision control. Especially in the impact assembly that needs to periodically hit the first pressure plate 43, the motor 410 can accurately control the movement frequency and strength of the impact rod 44 to ensure the stress dispersion effect.

[0058] Meanwhile, the motor 410 is usually equipped with a position feedback system (such as an encoder) to monitor the movement position of the impact rod 44 in real time to ensure the accuracy and consistency of the impact. In this embodiment, the motor 410 is a servo motor 410 .

[0059] The first pressure-receiving plate 43 is located below the neck portion 22 and is in contact with the lower portion of the second supporting portion 23 .

[0060] The neck 22, i.e. the goose neck 22 of the vehicle body, is usually a key area where stress is concentrated. The first pressure plate 43 is arranged below the neck 22 so as to directly act on the part where stress is most concentrated, and to more effectively disperse and absorb stress.

[0061] The structure design of the gooseneck 22 is usually complicated and easily affected and deformed by external forces. The first pressure plate 43 is arranged below the neck 22 to provide additional protection for this key part and prevent it from being permanently deformed or damaged.

[0062] At the same time, the first pressure plate 43 is fitted with the lower part of the second support part 23 to ensure the efficiency of stress transmission. When the impact rod 44 hits the first pressure plate 43, the force can be quickly and evenly transmitted to the second support part 23, thereby better dispersing the stress.

[0063] The fitted design reduces the force transmission path, reduces the possible loss of force during the transmission process, and ensures the effective use of force.

[0064] As mentioned above, during the installation of the carriage, the neck 22 is impacted at a regular frequency to release the stress of the neck 22 of the chassis 2. Therefore, the impact assembly is further introduced. The impact assembly includes a mounting plate 45 welded to the outer side of the sleeve 41. The mounting plate 45 is folded outwardly by 90° toward one end of the neck 22 to form a guide plate 46. An eccentric rotating disk 47 is rotatably mounted on the mounting plate 45, wherein the central axis of the eccentric rotating disk 47 is connected to the output end of the second driving assembly, a first support rod 48 is rotatably mounted near the edge of the eccentric rotating disk 47, and a second support rod 49 is rotatably mounted on the mounting plate 45 in the middle, and one end of the first support rod 48 is rotatably connected to one end of the second support rod 49 via an axle pin; The two impact rods 44 are rotatably mounted on two ends of the second support rod 49 , and the impact rods 44 pass through the guide plate 46 .

[0065] A long slot hole 481 is provided at the connecting end of the first support rod 48 and the eccentric rotating disk 47, and at the connecting end of the second support rod 49 away from the first support rod 48 and the impact rod 44. Through the cooperation of the long slot hole 481, the eccentric rotating disk 47 and the first support rod 48 and the second support rod 49 can realize reciprocating motion.

[0066] The use of the impact assembly is to start the second drive assembly (motor 410) through the control system, and the motor 410 starts to rotate. The rotation of the motor 410 drives the eccentric rotating disk 47 to rotate, and the rotation of the eccentric rotating disk 47 drives the first support rod 48 to reciprocate through the shaft pin. The reciprocating motion of the first support rod 48 causes the second support rod 49 to swing on the mounting plate 45. The swing of the second support rod 49 drives the two impact rods 44 to reciprocate through the shaft pins at both ends, and the impact rod 44 performs linear reciprocating motion along the guide hole of the guide plate 46. The reciprocating motion of the impact rod 44 causes it to continuously hit the first pressure plate 43 located below the neck 22, thereby achieving stress dispersion and relief.

[0067] When the impact rod 44 hits the first pressure plate 43, a stress wave is generated. A stress wave is an elastic wave propagating inside a material and can transfer and disperse energy.

[0068] The stress wave starts from the first pressure plate 43 and propagates along the structure of the chassis 2. Since the first pressure plate 43 is located below the neck 22, this position is a key area of ​​stress concentration, and the stress wave can be effectively transmitted to various parts of the neck 22.

[0069] The stress wave will gradually disperse during the propagation process, so that the stress originally concentrated on the neck 22 is homogenized, reducing the risk of excessive local stress.

[0070] Since the chassis 2 is made of metal, the microstructure inside the metal material is composed of grains and grain boundaries. When subjected to stress, these microstructures will deform and displace, resulting in stress concentration. The continuous impact of the impact rod 44 can cause the microstructure of the first pressure plate 43 and its surrounding materials to rearrange. This rearrangement can eliminate or reduce local high stress points, making the stress distribution more uniform. The impact can also produce tiny plastic deformations on the surface of the material, which can absorb part of the energy and reduce the stress concentration caused by elastic deformation.

[0071] At the same time, the high-speed reciprocating impact of the impact rod 44 will generate dynamic strain in the first pressure plate 43 and the surrounding materials. Dynamic strain refers to the strain state of a material when it is subjected to a rapidly changing force in a short period of time.

[0072] Dynamic strain can lead to strain hardening of materials, that is, when the material is subjected to rapid impact, its internal structure becomes more compact, thereby improving the strength and durability of the material. Dynamic strain can also promote stress relaxation of materials, that is, when the material is subjected to rapidly changing stress in a short period of time, its internal stress will gradually decrease, thereby reducing the damage caused by long-term stress concentration.

[0073] By controlling the rotation speed of the motor 410, the striking frequency of the impact rod 44 can be adjusted. High-frequency striking can more effectively transmit and disperse stress waves and reduce the duration of stress concentration.

[0074] By adjusting the output torque of the motor 410, the striking force of the impact rod 44 can be controlled. Appropriate striking force can ensure the propagation effect of the stress wave while avoiding structural damage caused by excessive impact.

[0075] Through experimental research, the effect of striking the first pressure plate 43 on stress dispersion can be verified. For example, the stress concentration at position 22 of the goose neck can be simulated on a test bench, and the first pressure plate 43 can be struck to monitor the stress change and verify its dispersion effect.

[0076] In actual engineering, this design has been widely used in occasions that require stress dispersion and relief, such as bridges, building structures, etc. These practices have proved the effectiveness and reliability of the striking method in stress dispersion.

[0077] In the above design, the eccentric rotating disk 47 ensures that the impact rod 44 can perform efficient reciprocating motion, and through continuous striking, the stress under the neck 22 is effectively dispersed and relieved. Through the combination of the eccentric rotating disk 47, the support rod and the impact rod 44, a simple mechanical structure is realized to effectively transmit and disperse force.

[0078] The mounting plate 45 is welded to the outside of the sleeve 41, and the guide plate 46 is folded 90 degrees, so that the entire impact assembly has a compact structure and saves space.

[0079] The first support rod 48 and the second support rod 49 are connected by an axle pin, which reduces the complex mechanical structure and facilitates installation and maintenance. The connection end of the first support rod 48 and the eccentric rotating disk 47, and the connection end of the second support rod 49 away from the first support rod 48 and the impact rod 44 are both provided with a long slot hole 481. Through the cooperation of the long slot hole 481, the movement of the impact rod 44 is ensured to be stable, and the loss and fluctuation in the force transmission process are reduced.

[0080] The function of the guide plate 46 is to ensure the linear movement of the impact rod 44 and prevent it from deviating from the direction during the movement, thereby enhancing the stability and reliability of the impact effect.

[0081] The use of the servo motor 410 can achieve high-precision control. By adjusting the speed and rotation angle of the motor 410, the striking frequency and strength of the impact rod 44 can be accurately controlled. Through the cooperation of the eccentric rotating disk 47 and the support rod, the impact force can be evenly distributed to the first pressure plate 43, reducing the structural damage caused by excessive force on a single point. Through the precise control of the motor 410, structural fatigue and damage caused by excessive impact can be avoided, thereby improving the safety of the system.

[0082] In this embodiment, the sleeve 41 is fixedly installed below the second support portion 23. Specifically, it is fixed by welding, or it can be fixed by bolts.

[0083] Reference Fig.11 As shown, a method for installing a unit on a sectional semi-trailer power supply vehicle comprises the following steps: S1: Vehicle goes online; The semi-finished trailer box assembly is carried onto the assembly line by a tractor to ensure that the box can be placed stably. The first driving assembly on the chassis 2 is started to extend the support rod 42 and contact the ground to keep the box stable. S2: pre-buried wire wiring; According to the electrical schematic diagram and electrical wiring diagram, complete the pre-embedding of the electrical wiring harness inside the car; S3: Car body primer spraying and foaming; Primer spraying is performed on the compartment to ensure anti-corrosion and anti-rust properties, and then foaming is performed on the compartment to enhance thermal insulation and reduce noise; S4: Unit assembly installation; Remove the roof, use a crane or a traveling crane to hoist the modified unit assembly into the carriage, and install and fix it in the original holes; S5: Welding of ceiling and expansion joint frame; Lift the ceiling back onto the top of the carriage, perform welding, perform welding on the expansion joint frame, and complete the carriage installation; S6, assembly stress relief; The control module 3 controls the impact rod 44 to adopt a third frequency to strike and vibrate the chassis 2 within a third preset time.

[0084] From the time the vehicle is put on the line, the stability is ensured by using the support rods 42 and the hoisting of the ceiling, which effectively prevents safety accidents caused by the instability of the box during the assembly process.

[0085] Pre-buried wire wiring, primer spraying and foaming treatment ensure the reliability of the electrical system and the anti-corrosion, rust-proof and thermal insulation properties of the car body, improving the reliability and service life of the overall system.

[0086] The control module 3 controls the impact rod 44 to strike and vibrate the chassis 2 at a specific frequency and time. The loading stress is eliminated through this stress elimination method. Traditional stress elimination methods mostly use heat treatment or mechanical stretching, while this method can more effectively eliminate the stress concentration generated during the assembly process through mechanical impact, thereby improving the stability and durability of the chassis 2.

[0087] The entire assembly process adopts a segmented assembly method, each step is independent and orderly, easy to manage and control. This modular design improves assembly efficiency and reduces errors and rework caused by confusion of steps.

[0088] Each step has clear operations and standards, which can achieve high repeatability and standardization, facilitating large-scale production and quality control.

[0089] The control module 3 is used to accurately control the striking frequency and time of the impact rod 44 to ensure the effect of stress elimination. This automatic control not only improves work efficiency, but also ensures the accuracy and consistency of each step of operation.

[0090] By comprehensively considering stability and reliability, innovatively introducing a stress relief method for mechanical impact, and adopting modular and automated design, the efficiency and quality of the assembly process are improved, which not only improves the safety and efficiency of assembly, but also extends the service life of the vehicle.

[0091] In step S4, the specific steps are: S41, hoisting the first box body and placing it on the first support part 21, starting the second driving assembly to control the impact rod 44 to use the first frequency through the control module 3 to strike and vibrate the chassis 2 within a first preset time; S42, hoisting the second box body and placing it on the second support part 23, starting the second driving assembly to control the impact rod 44 to use the second frequency through the control module 3, and striking and vibrating the chassis 2 within a second preset time.

[0092] In the above scheme, the first preset time is 60S-80S, the second preset time is 30S-40S, the third preset time is 40S-60S, the first frequency is 20HZ-40HZ, the second frequency is 10HZ-20HZ, and the third frequency is 20HZ-30HZ.

[0093] Wherein, a carriage is installed above the first supporting portion 21: The first preset time: 60S-80S ensures the sufficiency and uniformity of the spraying and foaming treatment, and improves the anti-corrosion, anti-rust and thermal insulation properties. High-frequency vibration (20HZ-40HZ) helps to evenly distribute the primer and foaming materials, reduce the formation of bubbles, and improve the adhesion and expansion effect of the materials.

[0094] The first frequency: 20HZ-40HZ promotes the fluidity of spraying and foaming materials, ensuring uniform coverage of the surface and interior. High-frequency vibration can generate strong surface tension and internal fluidity, which helps to quickly and evenly distribute the material.

[0095] Install the second carriage above the second support 23: The second preset time: 30S-40S ensures uniform heat distribution during welding, reduces welding stress, and improves the strength and durability of the weld. Low-frequency vibration (10HZ-20HZ) helps to spread heat evenly in the material, reduce local overheating, and improve welding quality.

[0096] Through the second frequency: 10HZ-20HZ, the internal stress of the material during welding is reduced, the stability and life of the weld are improved, and the low-frequency vibration can penetrate deep into the material, which helps to evenly distribute heat and release internal stress.

[0097] Install the third carriage above the second support 23: Through the third preset time: 40S-60S, the stress concentration after multi-layer assembly is completely eliminated, and the stability and durability of the overall structure are improved. Medium-frequency vibration (20HZ-30HZ) can achieve deeper stress wave propagation in a shorter time, effectively eliminating deep stress concentration.

[0098] Through the third frequency: 20HZ-30HZ, the advantages of high frequency and low frequency are combined to quickly and thoroughly eliminate the stress concentration after assembly. The medium frequency vibration can produce a stronger surface and internal response, which is conducive to the rapid propagation and uniform distribution of stress waves in the material.

[0099] In this embodiment, the first preset time is 60S, the second preset time is 30S, the third preset time is 40S, the first frequency is 40HZ, the second frequency is 20HZ, and the third frequency is 30HZ.

[0100] This phased time and frequency design approach effectively improves the stability and durability of the chassis 2 by precisely controlling different vibration parameters, optimizes material properties, reduces noise and vibration, and improves overall assembly efficiency. The selection of these parameters is based on material science, engineering practice and theoretical analysis, and the accuracy of the parameters and the reliability of the effects are ensured through experimental verification and process monitoring.

[0101] Through the impact vibrations of different times and frequencies, the stress concentration generated during the assembly process can be effectively eliminated, the structural damage caused by the stress concentration can be reduced, and the overall stability and durability of the chassis 2 can be improved.

[0102] High-frequency vibration (20HZ-40HZ) of primer spraying helps to evenly distribute the primer on the surface of the car body and improve the anti-corrosion and anti-rust properties.

[0103] Low frequency vibration (10HZ-20HZ) helps to evenly distribute heat during welding, reduce welding stress, and improve the strength and durability of the weld.

[0104] The foamed cabin can foam more effectively and evenly under high-frequency vibration, reducing the transmission of internal noise and external vibration and improving user comfort.

[0105] Through precise time and frequency control, efficient completion of each step can be ensured, rework and waste caused by improper operation can be reduced, and overall assembly efficiency can be improved.

[0106] Among them, high-frequency vibration, at this frequency, stress waves can propagate quickly, which helps to quickly eliminate local stress concentration and make the stress distribution inside the material more uniform.

[0107] Low-frequency vibration At this frequency, stress waves propagate more slowly but can penetrate deeper into the material, helping to eliminate deep stress concentrations and improve the overall stability of the material.

[0108] Medium frequency vibration combines the advantages of high frequency and low frequency. Medium frequency vibration can achieve deeper stress wave propagation in a short time, which is both efficient and thorough.

[0109] By selecting a vibration frequency close to the natural frequency of the material, a resonance effect can be generated, which can enhance the propagation of stress waves and thus eliminate stress more effectively.

[0110] In step S6, S6, assembling stress relief, specifically includes: S61, install the strain relief assembly; The sleeve 41 is installed below the second support portion 23. The sleeve 41 is rotatable to fit the second rotating portion 411 with the first rotating portion 231, and the shaft 412 penetrates the first rotating portion 231 and the second rotating portion 411; S611, check whether the cross protrusion 414 of the shaft rod 412 is inserted into the cross groove 413 of the second rotating part 411, and ensure that the sleeve 41 is in a non-rotatable locked state.

[0111] If the angle of the sleeve 41 needs to be adjusted, the shaft 412 is pulled outward to disengage the cross protrusion 414 from the cross slot 413, and the sleeve 41 enters a rotatable active state. After the adjustment is completed, the shaft 412 is pushed inward to reinsert the cross protrusion 414 into the cross slot 413 to lock the sleeve 41.

[0112] S612: Install support rod 42 The support rod 42 is slidably installed inside the sleeve 41 to form a hydraulic telescopic rod, which is connected to the hydraulic pump 415 and forms support on the ground after being unfolded.

[0113] S613: Install the first pressure plate 43 The first pressure plate 43 is installed at a position of the outer ring of the sleeve 41 close to the second support portion 23 to ensure that the first pressure plate 43 fits the lower side of the second support portion 23 .

[0114] S614: Install the impact assembly The mounting plate 45 is welded to the outside of the sleeve 41 to form a guide plate 46. The eccentric turntable 47 is rotatably set on the mounting plate 45. The central axis of the eccentric turntable 47 is connected to the output end of the motor 410. The first support rod 48 and the second support rod 49 are installed on the mounting plate 45 and connected by an axle pin. The two impact rods 44 are installed at both ends of the second support rod 49, and it is ensured that the impact rods 44 pass through the guide plate 46.

[0115] S62, drive strain relief assembly; S621: The hydraulic pump 415 is started through the control module 3 to drive the support rod 42 to extend from the inside of the sleeve 41 to adjust the height of the chassis 2. When the support rod 42 is extended, the support force of the chassis 2 can be increased to reduce the vibration caused by bumps during driving.

[0116] S622: The motor 410 is started by the control module 3 to drive the eccentric rotating disk 47 to rotate. The rotation of the eccentric rotating disk 47 is linked with the first support rod 48 and the second support rod 49, so that the impact rod 44 repeatedly hits the lower end surface of the first pressure plate 43.

[0117] The repeated striking of the impact rod 44 can effectively eliminate the stress concentration generated by the chassis 2 during driving, thereby improving the stability and service life of the chassis 2.

[0118] Example 2 Reference Figure 6-8 As shown, this embodiment is basically the same as the embodiment 1, except that the sleeve 41 is rotatably mounted below the second support portion 23. Specifically, it includes a protruding first rotating portion 231 disposed below the second support portion 23, and a concave second rotating portion 411 disposed above the sleeve 41. The second rotating portion 411 is clearance-matched with the first rotating portion 231, and the shaft 412 penetrates the first rotating portion 231 and the second rotating portion 411.

[0119] The second pressure plate 431 is welded to the outer side surface of the first rotating portion 231 .

[0120] The second rotating portion 411 is provided with a cross groove 413 at one end facing outward, and the shaft rod 412 is provided with a cross protrusion 414 matching the cross groove 413 at one end facing outward. When the shaft rod 412 is pulled outward, the cross protrusion 414 is driven to disengage from the cross groove 413, and the sleeve 41 is in a rotatable active state. When the shaft rod 412 is pushed inward, the cross protrusion 414 is driven to insert into the cross groove 413, and the sleeve 41 is in a non-rotatable locked state.

[0121] The shaft rod 412 is pulled outwards to disengage the cross protrusion 414 on the shaft rod 412 from the cross slot 413 of the second rotating part 411. At this time, the sleeve 41 is in a rotatable active state and can rotate freely.

[0122] When the sleeve 41 is in the active state, the sleeve 41 is rotated manually or with a tool to adjust its position or angle to meet different installation requirements, such as a working state perpendicular to the ground, or a retracted state parallel to the ground.

[0123] After the adjustment is completed, the shaft 412 is pushed inwardly so that the cross protrusion 414 on the shaft 412 is reinserted into the cross slot 413 of the second rotating part 411. At this time, the sleeve 41 is in a non-rotatable locking state to ensure that its position is fixed and will not rotate automatically due to external force.

[0124] The second driving assembly (motor 410) is started by the control system, and the motor 410 starts to rotate. The rotation of the motor 410 drives the eccentric rotating disk 47 to rotate. The rotation of the eccentric rotating disk 47 drives the first support rod 48 to reciprocate through the shaft pin. The reciprocating motion of the first support rod 48 causes the second support rod 49 to swing on the mounting plate 45.

[0125] The swing of the second support rod 49 drives the two impact rods 44 to reciprocate through the shaft pins at both ends thereof, and the impact rods 44 perform linear reciprocating motion along the guide holes of the guide plate 46. The reciprocating motion of the impact rod 44 causes it to continuously strike the first and second pressure plates 431 located below the neck 22, thereby achieving stress dispersion and relief.

[0126] By pulling the shaft 412 outward, the sleeve 41 can be in a rotatable active state, which is convenient for adjusting its position and angle. This flexibility is very useful during installation, especially when it is necessary to align a specific position or angle.

[0127] By pushing the shaft 412 inward, the sleeve 41 can be quickly locked to ensure that its position is fixed. This locking mechanism is very reliable and avoids displacement caused by external forces during use.

[0128] The clearance fit between the first rotating portion 231 and the second rotating portion 411 ensures free rotation of the sleeve 41 in the active state, while also reducing friction and wear during rotation.

[0129] The design of the cross groove 413 and the cross protrusion 414 makes the locking of the sleeve 41 more secure, ensuring that it will not loosen or fall out when impacted.

[0130] The above structure is easy to operate. The sleeve 41 can be unlocked and locked simply by pulling and pushing the shaft 412. The operation is very simple and convenient.

[0131] In addition, maintenance is convenient, and the design of the cross slot 413 and the cross protrusion 414 reduces wear between components and prolongs the service life of the system.

[0132] This design of the sleeve 41 being rotatable and lockable, achieved by the cooperation of the cross slot 413 and the cross protrusion 414, not only enhances the flexibility and adaptability of the system, but also improves its reliability and safety. In actual use, the sleeve 41 can be precisely adjusted and firmly locked through simple operations, thereby ensuring that the striking point of the impact rod 44 accurately acts on the first and second pressure plates 431, effectively dispersing and relieving the stress of the neck 22. The advantages of this design have been verified in many applications and is a very practical and efficient solution.

[0133] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field. The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0134] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A segmented semi-trailer power supply vehicle, characterized in that: include: A chassis (2) connected to the vehicle head (1), and a plurality of carriages arranged above the chassis (2); The chassis (2) comprises a first support portion (21) close to the vehicle head (1), the first support portion (21) is bent downward at one end away from the vehicle head (1) to form a neck (22), and is bent upward from the neck (22) to form a second support portion (23) parallel to the first support portion (21); A stress relief component is provided below one end of the second support portion (23) close to the neck (22); The stress relief assembly comprises at least two sleeves (41) installed below the second support portion (23), a support rod (42) slidably installed inside the sleeves (41), and a first driving assembly for driving the support rod (42) to extend / retract; a first pressure plate (43) disposed on the outer ring of the sleeve (41) close to the second support portion (23); an impact assembly disposed at the portion of the sleeve (41), the impact assembly comprising an impact rod (44), and a second driving assembly driving the impact rod (44) to repeatedly strike the lower end surface of the first pressure plate (43); A control module (3), the control module (3) being electrically connected to the first drive component and the second drive component; Controlling the first drive assembly via the control module (3) to drive the support rod (42) to extend; The control module (3) controls the second drive assembly to drive the impact rod (44) to impact the first pressure plate (43).

2. A sectional semi-trailer power supply vehicle according to claim 1, characterized in that: The first pressure plate (43) is located below the neck (22) and is in contact with the lower side of the second support portion (23).

3. The segmented semi-trailer power supply vehicle according to claim 1, characterized in that: The impact assembly comprises a mounting plate (45) welded to the outer side of the sleeve (41), wherein the mounting plate (45) is folded outwardly by 90° toward one end of the neck (22) to form a guide plate (46); An eccentric rotating disk (47) is rotatably mounted on the mounting plate (45), wherein the central axis of the eccentric rotating disk (47) is connected to the output end of the second driving assembly, a first support rod (48) is rotatably mounted near the edge of the eccentric rotating disk (47), and a second support rod (49) is rotatably mounted on the mounting plate (45) in the middle, wherein one end of the first support rod (48) is rotatably connected to one end of the second support rod (49) via a shaft pin; The two impact rods (44) are rotatably mounted on two ends of the second support rod (49), and the impact rods (44) penetrate the guide plate (46); A long slot hole (481) is provided at the connection end between the first support rod (48) and the eccentric rotating disk (47) and at the connection end of the second support rod (49) away from the first support rod (48) and the impact rod (44). The long slot holes (481) cooperate with each other to enable the eccentric rotating disk (47) and the first support rod (48) and the second support rod (49) to achieve reciprocating motion.

4. The segmented semi-trailer power supply vehicle according to claim 1, characterized in that: The sleeve (41) is fixedly mounted below the second support portion (23).

5. The sectional semi-trailer power supply vehicle according to claim 1, characterized in that: The sleeve (41) is rotatably mounted below the second support portion (23).

6. The segmented semi-trailer power supply vehicle according to claim 5, characterized in that: A protruding first rotating portion (231) is arranged below the second supporting portion (23), and a recessed second rotating portion (411) is arranged above the sleeve (41). The second rotating portion (411) and the first rotating portion (231) are clearance-matched, and a shaft (412) penetrates the first rotating portion (231) and the second rotating portion (411). The second pressure plate (431) is welded to the outer side surface of the first rotating portion (231).

7. The segmented semi-trailer power supply vehicle according to claim 6, characterized in that: The second rotating portion (411) is provided with a cross groove (413) at one end facing outward, and the shaft rod (412) is provided with a cross protrusion (414) matching the cross groove (413) at one end facing outward. When the shaft rod (412) is pulled outward, the cross protrusion (414) is driven to disengage from the cross groove (413), and the sleeve (41) is in a rotatable active state. When the shaft rod (412) is pushed inward, the cross protrusion (414) is driven to insert into the cross groove (413), and the sleeve (41) is in a non-rotatable locked state.

8. A method for installing a unit on a sectionalized semi-trailer power supply vehicle according to any one of claims 1 to 7, characterized in that the steps include: S1: Vehicle goes online; The semi-finished trailer box assembly is carried onto the assembly line by a tractor to ensure that the box can be placed stably, and the first driving assembly on the chassis (2) is activated to extend the support rod (42) and contact the ground, so that the box remains stable; S2: pre-buried wire wiring; According to the electrical schematic diagram and electrical wiring diagram, complete the pre-embedding of the electrical wiring harness inside the car; S3: Car body primer spraying and foaming; Primer spraying is performed on the compartment to ensure anti-corrosion and anti-rust properties, and then foaming is performed on the compartment to enhance thermal insulation and reduce noise; S4: Unit assembly installation; Remove the roof, use a crane or a traveling crane to hoist the modified unit assembly into the carriage, and install and fix it in the original holes; S5: Welding of ceiling and expansion joint frame; Lift the ceiling back onto the top of the carriage, weld it, weld the expansion joint frame, and complete the carriage installation; S6, assembly stress relief; The control module (3) controls the impact rod (44) to use a third frequency to strike and vibrate the chassis (2) within a third preset time.

9. The method for installing a unit on a sectionalized semi-trailer power supply vehicle according to claim 8, characterized in that: In step S4, the specific steps are: S41, hoisting the first box body and placing it on the first support part (21), starting the second drive assembly to control the impact rod (44) through the control module (3) to use a first frequency to strike and vibrate the chassis (2) within a first preset time; S42, hoisting the second compartment and placing it on the second support part (23), starting the second drive assembly to control the impact rod (44) through the control module (3) to use a second frequency to strike and vibrate the chassis (2) within a second preset time.

10. The method for installing a unit on a sectionalized semi-trailer power supply vehicle according to claim 9, characterized in that: The first preset time is 60S-80S, the second preset time is 30S-40S, the third preset time is 40S-60S, the first frequency is 20HZ-40HZ, the second frequency is 10HZ-20HZ, and the third frequency is 20HZ-30HZ.

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