Golf cart driving assembly
Technical Field
The invention belongs to the technical field of arrangement of vehicle power devices or transmission devices, and particularly relates to a golf cart driving assembly.
Background
Golf carts, also known as electric golf carts or pneumatic golf carts, are environmentally friendly passenger vehicles designed for golf courses. The vehicle is not only used in golf courses, but also widely applied to holiday villas, villa areas, garden hotels, tourist attractions and the like. With the improvement of the living standard of people and the importance of health, leisure and entertainment, the market demand of golf carts is increasing.
The electric golf cart is characterized in that the power source is a motor, and the power source of the pneumatic golf cart is a fuel engine;
When the conventional electric golf cart is used on a golf course, the road surface is rugged, the golf cart needs to climb up and down a slope in a reciprocating way, the condition of chassis scraping occurs, the requirement on torsion is high, the power source works in a state of low speed, high torsion and great change of rotating speed, the heating is serious, and if the power source is not provided with protection, the power source is directly exposed to the air for heat dissipation, the risk of collision exists, so that the golf cart driving assembly is provided.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the drawbacks of the prior art and provide a golf cart driving assembly.
The technical scheme adopted for solving the technical problems is as follows:
The golf cart driving assembly comprises a power source and a beam frame, wherein the beam frame is used for bearing and fixing the power source, a speed reducer and a gearbox are arranged at the output end of the power source, and a bearing beam is arranged below the gearbox by the beam frame;
The beam frame comprises two main rods which are horizontally arranged, through holes are formed in the middle parts of the two main rods, the end parts of the two main rods are bent and mutually close and are fixedly connected through a protection plate, a longitudinal frame is fixedly arranged at the bent part of the main rod, and the power source, the speed reducer and the gearbox are arranged in a cage-shaped space formed among the protection plate, the two main rods, the longitudinal frame and the bearing beam;
The radiator comprises a shell, a communication cavity is arranged in the shell, a radiating pipe is arranged at the port of the communication cavity, a through hole is formed in the position, corresponding to the radiating pipe, of the main rod, and the radiating pipe extends into the through hole through the through hole;
The protection plate comprises a buffer plate, a hollow energy absorption cylinder is arranged at the position, opposite to the opening of the through hole, of the buffer plate, and a reinforcing plate is arranged at one side, opposite to the power source, of the buffer plate.
When the golf cart is used, the power source provides power for the golf cart, the main rod of the beam frame penetrates through the bottom of the golf cart, the whole cart body is reinforced, the hollow design of the main rod is left and right, the through hole penetrating through the whole cart body is extended, air can flow through the whole cart body from the inside in the running process of the cart, the power source drives the golf cart to advance, because the golf cart runs on a rugged road, the cart speed is low and the requirement on torsion is high, the power source works in a low-speed high-torsion state, the heat generation is serious, a special radiator is required to be designed, the radiator transfers the heat of the power source into a heat exchange medium in the communication cavity of the shell, and the air flow generated in the main rod when the cart runs through the through hole via the radiating pipe is used for direct blowing and supplementing the heat radiation, the power source and the radiator are protected during the running process, the energy absorbing cylinder of the protection plate can guide the air flow at the cart head position into the main rod, the air flow speed in the through hole is improved, the radiating efficiency of the radiating pipe is further improved, the energy absorbing cylinder can deform during the impact, the impact force is absorbed, and impact damage caused by the impact is reduced.
Further, the fixed bolster is fixed mounting in the power supply outside, the connecting piece is installed to fixed bolster edge, connecting piece and mobile jib fixed connection, mobile jib circumference outer wall is equipped with the stopper that corresponds with the connecting piece, the connecting piece corresponds the perforation department and is the trompil processing.
Through above-mentioned technical scheme, the fixed bolster is the three-dimensional platelike structure of L shape, can carry out half surrounding type's fixed to power supply bottom and vertical lateral wall, and wear the silk with the connecting piece through the rubber sleeve collocation and be connected, it is fixed to carry out the shock attenuation, prevent resonance, the connecting piece is the staple bolt structure of components of a whole that can function independently from top to bottom, the stopper can prevent that the connecting piece atress from torsion, guarantee the installation of power supply is stable, and can the trompil avoid the cooling tube to guarantee that the heat dissipation is smooth, and in the department trompil of installation connecting piece, can utilize the connecting piece to improve the structural strength that the mobile jib opened the through-hole department, guarantee the structural stability of automobile body.
Further, the energy-absorbing plate with holes is connected to one end, far away from the through hole, of the energy-absorbing cylinder, the energy-absorbing plate is perpendicular to the axial design of the energy-absorbing cylinder, the inner diameter of one end, close to the main rod, of the energy-absorbing cylinder is consistent with the inner diameter of the through hole, the middle part of the energy-absorbing plate is bent towards the direction of the power source to form an arc-shaped surface, and the holes of the energy-absorbing plate are located in the deepest part of the arc-shaped surface.
Through the technical scheme, the energy-absorbing cylinder is in a horn shape, so that air can be introduced into the through holes as much as possible, and the arc-shaped structure of the energy-absorbing plate further improves the air guiding capacity, so that more air enters the energy-absorbing cylinder, the position of the hole of the energy-absorbing plate is optimized, the blocking of the air is reduced, and the air flow can smoothly flow into the through holes of the main rod.
Further, the filling valve is installed to the casing lateral wall, the filling valve is connected with the intercommunication chamber switch on, install the hose between casing and the cooling tube, the cooling tube is located the cover of perforating hole department and establishes and install the rubber piece.
Through above-mentioned technical scheme, filling the valve and can be for casing supplementary heat transfer medium for the intercommunication chamber can keep being full of by heat transfer medium all the time, and the hose then can make the radiating pipe adapt to the difference of vibration frequency between mobile jib and the power supply, prevents that the radiating pipe from being crooked impaired, separates through the inner wall that the rubber block runs through hole department, can avoid the radiating pipe to be worn and torn by mobile jib and connecting piece.
Further, the power source comprises a motor, a driving shaft of the motor is provided with a driving part, a rotating shaft is arranged at the end part of the driving part, the rotating shaft extends into the communication cavity, and centrifugal blades are arranged on the circumferential outer wall of the rotating shaft.
Through above-mentioned technical scheme, the motor provides rotary driving force, and the driving medium is for having chain and the sprocket group of protection box, can drive the pivot synchronous revolution at the motor during operation, and the pivot can make the heat transfer medium in the intercommunication chamber flow in the cooling tube at a high speed through centrifugal blade, carries the through-hole of mobile jib in with the heat of power supply department high-efficiently, carries out dynamic heat transfer cooling.
Further, output holes and backflow holes are formed in the shell, the positions of the output holes correspond to those of the centrifugal blades, the backflow Kong Bikai centrifugal blades are arranged, the inner diameter of the communication cavity at the centrifugal blades is consistent with the rotation radius of the centrifugal blades, and the inner diameter of the communication cavity is larger than the outer wall of the rotating shaft.
Through above-mentioned technical scheme, output hole and backward flow Kong Bingpai arrange, can make the heat transfer medium disperse to the surface of whole power supply, improve effective heat transfer area, and output hole and backward flow hole collocation U-shaped cooling tube, heat transfer medium keeps unidirectional flow when flowing, and circulation flow in an annular channel, and the resistance of flow is faster with lower velocity of flow, and heat exchange efficiency is higher.
Further, a suspension seat is arranged at the position of the main rod, a first bolt hole is formed in the end portion of the suspension seat, a support arm is arranged at the first bolt hole, and a steering knuckle is arranged at one end, far away from the main rod, of the support arm.
Through above-mentioned technical scheme, the suspension seat is 匚 shape structures, can directly weld at mobile jib circumference outer wall for connect support arm and knuckle, the bumper shock absorber can be installed to the support arm position, and semi-axis and tire can be installed to the knuckle position, with the quick transmission of the power of power supply to the tire position.
Further, a second bolt hole is formed in the position, lower than the bottom surface of the gearbox, of the suspension seat, the bearing beam is detachably arranged between the second bolt holes, and the bearing beam is fixedly connected with the gearbox through bolts.
Through above-mentioned technical scheme, set up the rubber sleeve in the dead angle department of carrier bar, reduce the resonance between automobile body and the gearbox, pass eccentric screw and bolt hole second in the rubber sleeve and be connected, the eccentric screw can adjust the height of carrier bar, when the rubber sleeve appears stress fatigue, can dismantle the change, when the maintenance gearbox, can reduce the position of carrier bar, need not dismantle the separation completely, alright lift out the gearbox to keeping away from guard plate direction level and adorn back, it is convenient to maintain.
Further, the mesh plate is detachably arranged at one end, far away from the power source, of the buffer plate, and the energy absorption plate is completely covered by the mesh plate.
Through the technical scheme, the mesh plate can filter before air enters the energy absorbing plate, so that sundries such as grass blades and the like are prevented from entering the main rod, and smooth air is ensured.
Furthermore, the both ends symmetry of mobile jib is bent, mobile jib mid-mounting has the bottom plate, fixed mounting has the reinforcement frame between bottom plate and the longitudinal frame.
Through above-mentioned technical scheme, keep away from each other in the mobile jib, then can guarantee that the coverage area who bears is big, the bottom plate can increase intermediate position's roughness, guarantees the convenient installation to the top automobile body, and reinforces frame and bottom plate design, can improve the bottom intensity of automobile body, avoids the bottom surface unsmooth chassis to lead to directly being impacted to bottom plate and mobile jib lug connection, can disperse whole automobile body below with the mobile jib heat conduction, improves radiating efficiency.
The beneficial effects of the invention are as follows:
(1) According to the invention, through the design of the radiator and the beam frame, the beam frame is arranged on the outer side of the power source, the main rod, the longitudinal frame, the bearing beam and the antiskid plate of the beam frame can form a cage structure, the protection effect on the power source is good, the main rod is hollow, the dead weight is light, the radiator actively radiates heat to the power source, the golf cart is suitable for the service environment of the golf cart, air flow is generated in the main rod when the golf cart runs, and the air cooling is carried out by matching with the radiating pipe of the radiator, so that the radiating effect is improved;
(2) According to the invention, through the optimization of the protection plate, when the power source is installed, the protection plate at the position of the vehicle head is utilized to carry out anti-collision protection on the power source, the energy-absorbing cylinder and the energy-absorbing plate can collapse and absorb energy when being impacted, so that the impact force is reduced, and when the power source is not impacted, the energy-absorbing cylinder and the energy-absorbing plate can gather air, so that more air enters the through holes of the main rod, the air flow speed in the through holes is improved, and the cooling capacity of the radiator is further enhanced;
(3) According to the invention, through improvement of the radiator, in different golf courses, if the gradient of the field is slower, the radiator without assistance can be adopted, the shell of the heat exchanger and the radiating pipe are utilized to absorb heat of the power source, the heat is contacted with the atmosphere to cool, the failure rate of the radiator is reduced, and in the field with larger ground fluctuation, the radiator with centrifugal blades can be used to circularly push the heat exchange medium in the shell and the radiating pipe, so that the radiating efficiency is improved.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic view of the structure of the present invention with the bottom plate removed;
FIG. 3 is a view of the mounting location between the beam and motor of the present invention;
FIG. 4 is a view of the mounting location between the beam and the gearbox of the present invention;
FIG. 5 is a schematic view of the structure of the beam mount of the present invention where the power source is mounted;
FIG. 6 is a schematic view of the beam mount of the present invention with the power source installed;
FIG. 7 is a schematic diagram of the structure between the motor and the heat sink of the present invention;
FIG. 8 is a schematic illustration of the location between a beam and a heat sink in accordance with the present invention;
FIG. 9 is a schematic view of a heat sink according to the present invention;
FIG. 10 is a schematic view of a radiator of the present invention in section with a rotating shaft installed;
fig. 11 is a schematic sectional view of the radiator of the present invention in a state where the rotation shaft is not mounted.
The reference numerals comprise 1, a power source, 11, a motor, 12, a transmission part, 13, a rotating shaft, 14, a centrifugal blade, 2, a beam frame, 21, a main rod, 22, a through hole, 23, a longitudinal frame, 24, a suspension seat, 25, a connecting part, 26, a first bolt hole, 27, a second bolt hole, 28, a limiting block, 29, a through hole, 3, a support arm, 4, a bottom plate, 5, a protection plate, 51, a buffer plate, 52, an energy absorbing plate, 53, an energy absorbing cylinder, 54, a reinforcing plate, 55, a mesh plate, 6, a radiator, 61, a shell, 62, a radiating pipe, 63, a filling valve, 64, a hose, 65, a fixing bracket, 66, a rubber block, 67, an output hole, 68, a backflow hole, 69, a communication cavity, 7, a speed reducer, 8, a gearbox and 9, and a bearing beam.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-11, the present embodiment provides a golf cart driving assembly, including a power source 1 and a beam frame 2, where the power source 1 provides driving force for a cart, and referring to fig. 3 and 7, an output end of the power source 1 is provided with a speed reducer 7 and a gear box 8 for speed change and forward and backward control, and in order to ensure stable installation of the power source 1, the beam frame 2 is used for bearing and fixing the power source 1, and a bearing beam 9 is installed below the gear box 8 of the beam frame 2, so that the power source 1, the speed reducer 7 and the gear box 8 can be installed in an erecting manner and fixed below a cart body, thereby improving installation stability;
Regarding the beam frame 2, in order to improve the protection effect on the power source 1 on the non-paved road surface, referring to fig. 2 and 3, the beam frame 2 comprises two main rods 21 horizontally arranged, the two main rods 21 horizontally extend left and right and are fixed at the bottom of the vehicle body, the extending direction of the main rods 21 is consistent with the advancing direction of the vehicle, and the overlapping range of the main rods and the vehicle body is large, so that the power source 1 and the vehicle body are stably installed, the strength of the vehicle body can be assisted to be improved, wherein the middle parts of the two main rods 21 are provided with through holes 22, the weight of the main rods 21 can be reduced, the energy consumption is reduced, the end parts of the two main rods 21 are bent and mutually close and are fixedly connected through a protection plate 5, a hollow cage-shaped space is formed, a longitudinal frame 23 is fixedly arranged at the bent part of the main rods 21, the middle is horizontally pulled and reinforced, an integral frame of 'mesh' can be formed under the overlook angle, the torsion resistance of the beam frame 2 is increased, the structural strength is further improved, the power source 1, a speed reducer 7 and a gearbox 8 are installed in 5, the cage-shaped space formed between the two main rods 21, the longitudinal frame 23 and a load-bearing beam 9, and the protection effect is good;
Regarding the power source 1, in order to improve the adaptability of the power source 1 to the rough road, referring to fig. 8 and 11, the radiator 6 is installed on the upper surface of the power source 1, the radiator 6 is installed on the top, and is safer away from the ground, so that the power hatch cover is conveniently opened from above for maintenance, the radiator 6 comprises a shell 61, the shell 61 is made of aluminum material, the heat conduction effect is good, the heat generated by the power source 1 can be quickly absorbed, a communication cavity 69 is built in the shell 61, the communication cavity 69 is filled with heat exchange medium, meanwhile, a radiating tube 62 is installed at the port position of the communication cavity 69, the heat exchange medium can flow into the radiating tube 62, the radiating tube 62 is a thin-walled tube, the contact area between the heat exchange medium and the outside atmosphere can be improved, the radiating efficiency is improved, a through hole 29 is formed at the position of the main rod 21 corresponding to the radiating tube 62, and the radiating tube 62 extends into the through hole 22, and when the vehicle travels, because the main rod 21 is consistent with the advancing direction of the vehicle, air flow can be generated in the through hole 22, the air flows into a section inside the main rod 21, the left side flows out from the right side, and the main rod 21 is blocked, and the inside is blocked, and the main rod 62 can radiate heat quickly, and the air can not flow quickly, and has high radiating efficiency;
Regarding the protection plate 5, in order to adapt to the rugged ground condition, referring to fig. 3, the protection plate 5 includes a buffer plate 51, the buffer plate 51 is of an aluminum vertical plate structure, and is fixedly mounted at the left and right ends of the main rod 21 through bolts, the buffer plate 51 is provided with a hollow energy-absorbing cylinder 53 opposite to the opening position of the through hole 22, the energy-absorbing cylinder 53 is designed to be in a horn shape, so that when the vehicle is impacted, the vehicle is horizontally collapsed and retracted to absorb energy, the impact suffered during the collision is relieved, one side of the buffer plate 51 opposite to the power source 1 is provided with a reinforcing plate 54, the reinforcing plate 54 is mounted parallel to the buffer plate 51 and is closer to the power source 1, the collapsing space can be limited, the situation that the power source 1 and the radiator 6 are directly collided by the buffer plate 51 due to excessive collapsing of the energy-absorbing cylinder 53 is avoided, the energy-absorbing cylinder 53 can guide air into the through hole 22, and more air enters the main rod 21 when the vehicle is driven, and the radiating efficiency is improved.
In a further embodiment, referring to fig. 6 and 7, a fixing support 65 is fixedly installed on the outer side of the power source 1, the fixing support 65 is of an L-shaped three-dimensional plate structure, the bottom and the vertical side wall of the power source 1 can be fixed in a semi-enclosed manner, meanwhile, a connecting piece 25 is installed at the edge of the fixing support 65, a vertical rubber sleeve is installed at the edge of the fixing support 65, a vertical threading is installed in the rubber sleeve, the threading is detachably connected with the connecting piece 25, flexible connection and fixation are performed, resonance is prevented, the connecting piece 25 is fixedly connected with the main rod 21, the connecting piece 25 is of an anchor ear structure which is split up and down, the anchor ear structure can be directly buckled on the outer side of the cylindrical main rod 21, the anchor ear structure is convenient to assemble and disassemble, a limit block 28 corresponding to the connecting piece 25 is arranged on the circumferential outer wall of the main rod 21, stress torsion of the limit block 28 can be prevented, installation stability of the power source 1 is guaranteed, the connecting piece 25 is correspondingly perforated at the position of the through hole 29, the through hole 29 is avoided, the pipe 62 is smoothly inserted into the inner side of the main rod 21, the through hole is perforated at the position of the connecting piece 25, the 21 is reinforced by the annular connecting piece 25, the through hole 21 is reinforced by the annular connecting piece, the main rod 21 is prevented from being reinforced, and the through hole 21, the through hole 21, the structure is prevented from being caused by the strong heat radiation structure.
In a further embodiment, referring to fig. 5 and 6, an open-pore energy absorbing plate 52 is connected to one end of the energy absorbing barrel 53 far away from the through hole 22, the energy absorbing plate 52 is designed to be perpendicular to the axial direction of the energy absorbing barrel 53, so that air in a larger range can be introduced into the energy absorbing barrel 53, the inner diameter of one end of the energy absorbing barrel 53 close to the main rod 21 is consistent with the inner diameter of the through hole 22, the middle part of the energy absorbing plate 52 is bent towards the direction of the power source 1 to form an arc-shaped surface, the arc-shaped structure of the energy absorbing plate 52 further improves the air guiding capability, more air enters the energy absorbing barrel 53, the open-pore of the energy absorbing plate 52 is located at the deepest part of the arc-shaped surface, the open-pore position of the energy absorbing plate 52 is optimized, the blocking of the air by the inner walls of the energy absorbing plate 52 and the energy absorbing barrel 53 is reduced, and the air flow can be ensured to smoothly flow into the through hole 22 of the main rod 21.
In a further embodiment, referring to fig. 7, a filling valve 63 is installed on the side wall of the casing 61, the filling valve 63 can supplement heat exchange medium for the casing 61, the filling valve 63 is connected with the communicating cavity 69 in a conducting manner, so that the communicating cavity 69 can be always kept full of heat exchange medium, a hose 64 is installed between the casing 61 and the radiating pipe 62, the hose 64 can enable the radiating pipe 62 to adapt to the difference of vibration frequency between the main rod 21 and the power source 1, the radiating pipe 62 is prevented from being bent and damaged, a rubber block 66 is sleeved at the position of the radiating pipe 62 at the through hole 29, the inner wall of the through hole 29 is separated by the rubber block 66, abrasion of the radiating pipe 62 by the main rod 21 and the connecting piece 25 can be avoided, holes are formed in the rubber block 66, deformability of the rubber block 66 is improved, transmission of vibration is further reduced, and the holes of the rubber block 66 can enable part of air inside the through hole 22 to be dispersed upwards, so that the radiating pipe 62 outside the upper part of the main rod 21 can also be blown by airflow to radiate heat, and the heat exchange medium inside the outer surface of the radiating pipe 62 is fully utilized to cool.
In a further embodiment, referring to fig. 9 and 10, the power source 1 includes a motor 11, the motor 11 provides a rotational driving force, a driving shaft of the motor 11 is provided with a driving member 12, a rotating shaft 13 is installed at an end of the driving member 12, the driving member 12 is a chain and sprocket set with a protection box, the driving member 13 can be driven to synchronously rotate when the motor 11 works, the rotating shaft 13 extends into the communication cavity 69, centrifugal blades 14 are installed on the circumferential outer wall of the rotating shaft 13, a liquid heat exchange medium is adopted by the heat exchange medium, the rotating shaft 13 can enable the heat exchange medium in the communication cavity 69 to flow in the heat dissipation tube 62 at a high speed through the centrifugal blades 14, and heat at the power source 1 is efficiently conveyed into the through hole 22 of the main rod 21 for dynamic heat exchange and cooling.
In a further embodiment, referring to fig. 10, an output hole 67 and a backflow hole 68 are formed in the casing 61, the output hole 67 and the backflow hole 68 are arranged side by side, so that a heat exchange medium can be dispersed on the surface of the whole power source 1, the effective heat exchange area is improved, the position of the output hole 67 corresponds to that of the centrifugal blade 14, the backflow hole 68 is arranged away from the centrifugal blade 14, the output hole 67 and the backflow hole 68 are matched with the U-shaped radiating tube 62, the heat exchange medium keeps unidirectional flow during flowing and circularly flows in an annular channel, the inner diameter of the communication cavity 69 at the centrifugal blade 14 is consistent with the rotation radius of the centrifugal blade 14, the heat exchange medium can smoothly enter the output hole 67 during centrifugation, the inner diameter of the communication cavity 69 is larger than the outer wall of the rotating shaft 13, the resistance of the heat exchange medium during horizontal flow is smaller, the flow speed is faster, and the heat exchange efficiency is higher.
In a further embodiment, referring to fig. 4, a suspension seat 24 is installed at the position of the longitudinal frame 23 of the main rod 21, the suspension seat 24 is of a 匚 -shaped structure, the self weight is reduced while the structural strength is ensured, the suspension seat 24 can be directly welded on the circumferential outer wall of the main rod 21, a first bolt hole 26 is formed at the end part of the suspension seat 24 and is used for connecting two support arms 3, two support arms 3 are arranged up and down, a shock absorber is installed between the two support arms 3, the top of the shock absorber is connected with a vehicle body, the comfort is improved, a knuckle is installed at the end of the support arm 3 far away from the main rod 21, a half shaft and a tire can be installed at the position of the knuckle, the half shaft is connected with a gearbox 8, the motor 11 is not installed at the position of the tire, the unsprung mass of the shock absorber is reduced, the comfort is further improved, the motor 11 is only one for installing each tire, the manufacturing cost is reduced, and the gearbox 8 rapidly transmits the power of the power source 1 to the tire position.
In a further embodiment, referring to fig. 4 and 5, the suspension seat 24 is lower than the bottom surface of the gearbox 8 and is provided with the second bolt hole 27, the four corners of the bearing beam 9 are provided with rubber sleeves, when the rubber sleeves are in stress fatigue, the rubber sleeves can be detached and replaced, resonance between the vehicle body and the gearbox 8 is reduced, the rubber sleeves pass through eccentric screws and are connected with the second bolt hole 27, the eccentric screws can adjust the height of the bearing beam 9, wherein the bearing beam 9 is detachably arranged between the second bolt hole 27, the bearing beam 9 is fixedly connected with the gearbox 8 through bolts, when the gearbox 8 is maintained, the position of the bearing beam 9 can be lowered by rotating the eccentric screws in the second bolt hole 27, the bearing beam 9 can be lowered for a distance without being completely detached and separated, and a sufficient space can be provided for the gearbox 8 to be lifted horizontally away from the protection plate 5, and the maintenance is convenient.
In a further embodiment, referring to fig. 4, the end, far away from the power source 1, of the buffer plate 51 is detachably provided with the mesh plate 55, the mesh plate 55 can filter before air enters the energy absorbing plate 52, the energy absorbing plate 52 is completely covered by the mesh plate 55, sundries such as grass and leaves are effectively prevented from entering the main rod 21, smooth air is ensured, and efficient heat dissipation of the heat dissipation tube 62 is further ensured.
In a further embodiment, referring to fig. 2, two ends of the main rod 21 are symmetrically bent, the main rod 21 is far away from each other, so that a large bearing coverage area can be ensured, a sufficient space can be reserved for installing a battery (not shown in the figure) to provide electric energy for the motor 11, or when the motor 11 of the power source 1 is replaced by an internal combustion engine (not shown in the figure) such as a diesel engine or a gasoline engine, an oil tank can be installed at the position to provide fuel for the internal combustion engine, meanwhile, the main rod 21 is far away from each other, the bearing coverage area can be ensured to be large, a bottom plate 4 is installed in the middle of the main rod 21, the flatness of the middle position can be increased, the convenient installation of an upper vehicle body is ensured, the chassis is prevented from being directly impacted due to the concave-convex bottom surface, the bottom plate 4 is directly connected with the main rod 21, the heat conduction of the main rod 21 can be dispersed to the lower part of the whole vehicle body, the heat dissipation efficiency is improved, and a reinforcing frame is fixedly installed between the bottom plate 4 and the longitudinal frame 23, and the bottom strength of the vehicle body can be improved.
The working principle of this embodiment is as follows:
The power source 1 provides power for the golf cart, the power source 1 drives the golf cart to advance, the use scene of the golf cart is special, in order to build a golf environment, the road surface is rugged, the golf cart needs to climb up and down a slope in a reciprocating way, the speed is low, the torsion requirement is high, the power source 1 works in a state of low speed, high torsion and greatly changed rotation speed, the heat generation is serious, a special radiator 6 needs to be designed, the radiator 6 transfers the heat of the power source 1 into a heat exchange medium in a communication cavity 69 of the shell 61, and the heat exchange medium is spread out through radiating pipes 62 at two sides to be fully contacted with the outside air for heat dissipation;
The main rod 21 of the beam frame 2 penetrates through the bottom of the golf cart to strengthen the whole cart body, the hollow design of the main rod 21 extends left and right to penetrate through the through hole 22 of the whole cart body, air can flow in the through hole 22 through the main rod 21 when the cart is running, the radiating tube 62 is inserted into the through hole 22, and the air flow generated in the main rod 21 when the cart is running is directly blown to supplement heat radiation;
When advancing, if travel on non-paved heavy grade ground, the locomotive position is contact ground easily, install guard plate 5 at locomotive position and protect power supply 1 and radiator 6, can avoid power supply 1 and radiator 6 directly collide with, buffer plate 51 and energy-absorbing plate 52 then can be deformation when receiving the impact, absorb the impact force, reduce power supply 1 and radiator 6 impact damage that the collision caused, buffer plate 51 and energy-absorbing plate 52 of guard plate 5 can be with the air current gathering of locomotive position leading to in the mobile jib 21 because of the design of molding, improve the air current velocity in the through-hole 22 and then improve the radiating efficiency to cooling tube 62.
The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.