CN108654112B - Adjustable S-shaped track carbon-free trolley - Google Patents
Adjustable S-shaped track carbon-free trolley Download PDFInfo
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- CN108654112B CN108654112B CN201810637746.1A CN201810637746A CN108654112B CN 108654112 B CN108654112 B CN 108654112B CN 201810637746 A CN201810637746 A CN 201810637746A CN 108654112 B CN108654112 B CN 108654112B
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- steering
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- 230000005540 biological transmission Effects 0.000 claims abstract description 108
- 230000005484 gravity Effects 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 51
- 238000005381 potential energy Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 description 20
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
- A63H17/262—Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
- A63H17/36—Steering-mechanisms for toy vehicles
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H29/00—Drive mechanisms for toys in general
- A63H29/08—Driving mechanisms actuated by balls or weights
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H29/00—Drive mechanisms for toys in general
- A63H29/24—Details or accessories for drive mechanisms, e.g. means for winding-up or starting toy engines
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- Transmission Devices (AREA)
Abstract
The invention provides the technical field of carbon-free trolleys, and in particular relates to an adjustable S-shaped track carbon-free trolley which comprises a driving assembly, a gravity assembly, a rear wheel transmission assembly and a steering adjusting assembly, wherein the driving assembly is arranged on a bottom plate, the gravity assembly is used for providing driving force, the rear wheel transmission assembly is driven by the driving assembly and used for driving a rear wheel to rotate, and the steering adjusting assembly is used for adjusting the S-shaped track; the steering adjusting component is connected with the front wheels through a front wheel transmission rod, and the front wheels are driven to steer through adjusting the movement of the steering adjusting component so as to realize the adjustment of the S-shaped track of the trolley. The carbon-free trolley can adapt to competition sites of obstacles with different distances, and on the premise, the adjustment of S-shaped tracks, including the simultaneous adjustment of the size, shape and position of the tracks, is realized, so that the trolley bypasses more obstacles and walks farther.
Description
Technical Field
The invention relates to the technical field of carbonless trolleys, in particular to an adjustable S-shaped track carbonless trolley.
Background
The S-shaped track carbon-free trolley is a mark item for comprehensive capability competition of engineering and training of students in the field of domestic mechanical engineering, and specifically comprises the following components: given that a specified heavy hammer falls from a specified height, according to the energy conversion principle, a carbon-free trolley which converts gravitational potential energy into mechanical energy and uses the mechanical energy as the only power drive is designed, meanwhile, the trolley is required to walk according to an S-shaped track, and the energy required by all actions in the walking process is obtained by the conversion of the gravitational potential energy, so that any other energy source can not be used. The carbonless trolley is required to have a steering control mechanism, and the steering mechanism has an adjustable function so as to adapt to competition sites of obstacles with different distances, and can bypass more obstacles and walk farther to win under the premise. At present, various S-shaped track carbon-free trolley designs exist, basically the S-shaped track walking can be realized, but the simultaneous adjustment of the size, shape and position of the S-shaped track cannot be realized, so that the trolley cannot bypass more barriers and walk farther.
Disclosure of Invention
The invention provides the adjustable S-shaped track carbon-free trolley for overcoming at least one defect in the prior art, which can adjust the size, shape and position of the S-shaped track simultaneously, and can convert gravitational potential energy into mechanical energy more efficiently, so that the trolley bypasses more barriers and walks farther.
In order to solve the technical problems, the technical scheme of the invention is as follows:
an adjustable S-shaped track carbon-free trolley comprises a driving component, a gravity component, a rear wheel transmission component and a steering adjusting component, wherein the driving component is arranged on a bottom plate, the gravity component is used for providing driving force, the rear wheel transmission component is driven by the driving component and used for driving a rear wheel to rotate, and the steering adjusting component is used for adjusting the S-shaped track;
the steering adjusting component is connected with the front wheels through a front wheel transmission rod, and the front wheels are driven to steer through adjusting the movement of the steering adjusting component so as to realize the adjustment of the S-shaped track of the trolley.
Preferably, the steering adjusting assembly comprises a cam transmission mechanism, a sliding block transmission mechanism and a steering fine adjustment mechanism which are sequentially connected; the driving assembly is connected with the cam transmission mechanism through the intermediate transmission assembly, and the steering fine adjustment mechanism is connected with the front wheel transmission rod.
Preferably, the friction wheel of the driving assembly is in friction transmission with the friction disc of the intermediate transmission assembly; the first bevel gear of the middle transmission assembly is meshed with the second bevel gear of the cam transmission mechanism for transmission, the friction transmission ratio is changed for adjusting the movement of the steering adjusting assembly, and the steering of the front wheel is driven to realize the adjustment of the S-shaped size of the trolley.
Preferably, the steering fine adjustment mechanism comprises an adjusting slide block which is limited in a groove of the swing cross beam and moves along a fine adjustment screw, the swing cross beam is connected with the front wheel transmission rod, a swing connecting rod fixed on the adjusting slide block is connected with the slide block transmission mechanism, the relative position of the adjusting slide block and the swing cross beam is changed, the swing amplitude of the front wheel is changed through the front wheel transmission rod, and the S-shaped shape is adjusted.
Preferably, the steering fine adjustment mechanism is provided with a pointer fixedly connected with the front wheel transmission rod; the bottom plate is provided with a dial matched with the pointer, the position of the pointer on the dial is changed, the direction of the front wheel is regulated through the front wheel transmission rod, and the departure position of the carbonless trolley is defined.
Preferably, the cam transmission mechanism comprises an intermediate shaft provided with a second bevel gear and a cylindrical cam, and a cam track searching rod is connected with the slider transmission mechanism and the cylindrical cam, and one end of the cam track searching rod is limited to move in a cam track groove of the cylindrical cam.
Preferably, the sliding block transmission mechanism comprises an adjusting beam which is connected with the other end of the cam track searching rod and provided with a groove, and a linear guide rail sliding block fixed at the bottom of the adjusting beam is in sliding connection with a linear guide rail of the bottom plate; one end of the swinging connecting rod is limited in the groove of the adjusting cross beam to reciprocate.
Preferably, the heavy hammer of the gravity assembly is connected with a winding cone on a driving shaft of the driving assembly through a string which bypasses the fixed pulley, and the winding cone is used for converting gravitational potential energy into mechanical energy.
Preferably, the large gear on the driving shaft is meshed with the small gear on the driven shaft of the rear wheel transmission assembly, and the driven shaft drives the rear wheel to move.
Preferably, the driven shaft is further provided with a speed reducer.
Compared with the prior art, the beneficial effects are that: the carbon-free trolley with the S-shaped track can be adjusted by adjusting the movement of the steering adjusting component, and particularly comprises the adjustment of the size, the shape and the position of the S-shaped track, and is suitable for competition sites of obstacles with different distances, the track is accurate, and the movement is stable, so that the trolley bypasses more obstacles and walks farther;
1) The friction positions of the friction disk and the friction wheel are regulated to achieve different transmission ratios of the driving shaft and the transmission shaft, and then the motion of the steering regulating assembly is regulated through the bevel gear, so that the swing frequency of the front wheel is finally regulated, at the moment, the advancing speed of the rear wheel is fixed, and the size of the S-shaped track can be regulated by regulating the swing frequency of the front wheel;
2) The position of the adjusting slide block in the swinging cross beam is changed through adjusting the fine adjusting screw rod, namely the relative position of the adjusting slide block and the swinging cross beam is changed, so that the swinging amplitude of the front wheel in the steering fine adjusting mechanism is realized, and the shape of the S-shaped track can be adjusted through the swinging amplitude of the front wheel;
3) The departure position of the trolley can be defined by adjusting the positions of the pointer and the scales on the dial on the chassis assembly; in addition, the position of the adjusting slide block in the swinging cross beam is changed through adjusting the fine adjusting screw rod, namely the relative position of the adjusting slide block and the swinging cross beam, so that the swinging amplitude of the front wheel in the steering fine adjusting mechanism is realized, and the position of the S-shaped track is adjusted;
4) The driven shaft is provided with the speed reducer, so that two rear wheels can advance at different speeds in the turning process of the trolley, and the accuracy of the trolley track and the stability of the whole trolley in the running process of the trolley are improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an adjustable S-shaped track carbon-free trolley.
FIG. 2 is a schematic diagram of a carbon-free trolley body with an adjustable S-shaped track.
FIG. 3 is a steering adjustment assembly of an adjustable S-shaped track carbon-free trolley of the present invention.
FIG. 4 is an intermediate drive assembly of an adjustable S-track carbon-free trolley of the present invention.
FIG. 5 is a drive assembly of an adjustable S-track carbon-free trolley of the present invention.
FIG. 6 is a gravity assembly of an adjustable S-shaped trajectory carbon-free trolley of the present invention.
FIG. 7 is a rear wheel assembly of an adjustable S-shaped track carbon-free cart of the present invention.
FIG. 8 is a chassis assembly of an adjustable S-shaped track carbon-free cart of the present invention.
Fig. 9 is an S-shaped trajectory along the X-axis of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
As shown in fig. 1-8, the carbon-free trolley with the adjustable S-shaped track is designed by the invention, and comprises a main chassis component 6, a steering adjusting component 1 arranged on a bottom plate 6-5 of the chassis component 6, an intermediate transmission component 2, a driving component 3, a gravity component 4 and a rear wheel transmission component 5, wherein the gravity component 4 also comprises a string 7 and a heavy hammer 8.
The steering adjusting assembly 1 specifically comprises an intermediate shaft 1-1, a cylindrical cam 1-2, a linear guide rail 1-3, a cam track-seeking rod 1-4, a linear guide rail sliding block 1-5, an adjusting cross beam 1-6, a fixing nut 1-7, a fine adjustment screw rod 1-8, a hexagonal nut 1-19, an adjusting sliding block 1-9, a swinging cross beam 1-10, a swinging connecting rod 1-11, a rolling bearing 1-12, a front wheel flange plate 1-13, a front wheel transmission rod 1-14, a front wheel bracket 1-15, a front wheel stud bolt 1-16, a front wheel 1-17 and a pointer 1-18, wherein one end of the cam track-seeking rod 1-4 is additionally provided with the rolling bearing.
The intermediate transmission assembly 2 consists of a friction disc 2-1, a transmission shaft 2-2, a transmission shaft rolling bearing 2-3, a first bevel gear 2-4, a second bevel gear 2-6 and a transmission shaft bearing seat 2-5.
The driving assembly 3 consists of a friction wheel 3-1, a winding cone 3-2, a driving shaft 3-3, a large gear flange plate 3-4 and a large gear 3-5.
The gravity assembly 4 further comprises a supporting rod 4-1, a supporting plate 4-2, a guide rod 4-3, a fixed pulley 4-4, a fixed pulley stepped shaft 4-5, a fixed pulley stepped shaft rolling bearing 4-6, a fixed pulley stepped shaft bearing seat 4-7 and a tripod cross beam 4-8.
The rear wheel transmission assembly 5 consists of a driven shaft 5-1, a speed reducer 5-2, a pinion 5-3, a rear wheel flange 5-4 and a rear wheel 5-5.
The chassis assembly 6 consists of a linear guide rail supporting seat 6-1, a middle shaft bearing seat 6-2, a driving shaft bearing seat 6-3, a driven shaft bearing seat 6-4, a bottom plate 6-5, a driven shaft rolling bearing 6-6, a driving shaft rolling bearing 6-7, a middle shaft rolling bearing 6-8 and a dial 6-9.
Wherein, an adjustable S font orbit does not have overall structure of carbon dolly is:
the driving component 3 is connected with the rear wheel transmission component 5 so as to drive the rear wheel 5-5 to rotate; the steering adjusting assembly 1 comprises a cam transmission mechanism 13, a slide block transmission mechanism 12 and a steering fine adjustment mechanism 11 which are sequentially connected, wherein the steering fine adjustment mechanism 11 is connected with front wheels 1-17 through front wheel transmission rods 1-14; the driving assembly 3 is connected with a cam transmission mechanism 13 of the steering adjusting assembly 1 through an intermediate transmission assembly 2, and the steering fine adjustment mechanism 11 is connected with the front wheel transmission rods 1-14. The front wheels 1-17 are driven to turn by adjusting the movement of the turning adjusting component 1, so that the S-shaped track of the trolley is adjusted.
Further, the friction wheel 3-1 of the driving assembly 3 is in friction transmission with the friction disc 2-1 of the intermediate transmission assembly 2; the first bevel gear 2-4 of the intermediate transmission assembly 2 is meshed with the second bevel gear 2-6 of the cam transmission mechanism 13 for transmission, the friction transmission ratio is changed to adjust the steering fine adjustment mechanism 11 to move, and the steering of the front wheels 1-17 is driven to adjust the S-shaped size of the trolley.
The driving shaft 3-3 is arranged on the driving shaft bearing seat 6-3 through the driving shaft rolling bearing 6-7, the driving shaft bearing seat 6-3 is fixed with the bottom plate 6-5 through a fixing bolt, the two ends of the driving shaft 3-3 fix the large gear flange plate 3-4 and the friction wheel 3-1 on the driving shaft 3-3 through jackscrews, and the large gear 3-5 is fixed with the large gear flange plate 3-4 through the fixing bolt. As shown in FIG. 2, a friction disc 2-1 and a friction wheel 3-1 in an intermediate transmission assembly 2 are vertically installed, the friction disc 2-1 and the friction wheel 3-1 are vertically contacted and rubbed, the friction disc 2-1 is fixed on a transmission shaft 2-2 through a flange mechanism, the transmission shaft 2-2 is installed on a transmission shaft bearing seat 2-5 through a transmission shaft rolling bearing 2-3, a driven shaft bearing seat 2-5 is fixed with a bottom plate 6-5 through a fixed bolt, and the friction disc 2-1 and the transmission shaft 2-2 are driven to rotate by the vertical contact friction of the friction wheel 3-1 and the friction disc 2-1, so that the friction rotation of a driving shaft 3-3 and the transmission shaft 2-2 is realized; meanwhile, the friction wheel 3-1 can be detached and moved in the axial direction of the driving shaft 3-3 to be fixed, so that the position of the friction wheel 3-1 on the driving shaft 3-3 is changed, the vertical friction position of the friction wheel 3-1 and the friction disc 2-1 is changed, namely the radius of a friction contact circle on the friction disc 2-1 is changed, different transmission ratios of the driving shaft 3-3 and the transmission shaft 2-2 are achieved, further, the first bevel gear 2-4 and the second bevel gear 2-6 are used for transmission, the cam transmission mechanism 13, the sliding block transmission mechanism 12 and the steering fine adjustment mechanism 11 are used for driving the front wheel transmission rod 1-14, finally, the swing frequency of the front wheel 1-17 is adjusted and finally, the advancing speed of the rear wheel 5-17 is fixed at the moment, the swing frequency of the front wheel 1-17 is adjusted, and the S-shaped size is the telescopic adjustment of the track along the X axis direction as shown in fig. 9.
Further, the steering fine adjustment mechanism 11 comprises an adjustment slide block 1-9 which is limited in a groove of the swing beam 1-10 and moves along a fine adjustment screw 1-8, the adjustment slide block 1-9 is in threaded connection with the fine adjustment screw 1-8, and the relative position of the adjustment slide block 1-9 and the swing beam 1-10 can be adjusted by rotating the fine adjustment screw 1-8 to change the position of the adjustment slide block 1-9 in the fine adjustment screw 1-8; the swinging cross beam 1-10 is connected with the front wheel transmission rod 1-14, and the swinging connecting rod 1-11 fixed on the adjusting slide block 1-9 is connected with the slide block transmission mechanism 12;
the cam transmission mechanism 13 comprises an intermediate shaft 1-1 provided with a second bevel gear 2-6 and a cylindrical cam 1-2, and a cam track searching rod 1-4 for connecting the slider transmission mechanism 12 and the cylindrical cam 1-2, wherein one end of the cam track searching rod 1-4 is limited to move in a cam track groove 1-2-1 of the cylindrical cam 1-2; the sliding block transmission mechanism 12 comprises an adjusting beam 1-6 which is connected with the other end of the cam track searching rod 1-4 and provided with a groove, and a linear guide rail sliding block 1-5 which is fixed at the bottom of the adjusting beam 1-6 is in sliding connection with a linear guide rail 1-3 of a bottom plate 6-5; the swinging connecting rod 1-11 is limited in the groove of the adjusting beam 1-6 to reciprocate; the relative positions of the adjusting slide blocks 1-9 and the swinging cross beams 1-10 are changed, and the swinging amplitude of the front wheels 1-17 is changed through the front wheel transmission rods 1-14 to adjust the S-shaped shape.
As shown in fig. 2 and 3, the left end and the right end of the cylindrical cam 1-2 are fixed on the middle position of the intermediate shaft 1-1 through jackscrews, the intermediate shaft 1-1 is arranged on an intermediate shaft bearing seat 6-2 through an intermediate shaft rolling bearing 6-8, and the intermediate shaft bearing seat 6-2 is fixed with a bottom plate 6-5 through a fixing bolt; the cam track seeking rod 1-4 is in clearance fit with a cam track groove 1-2-1 in the cylindrical cam 1-2 through a rolling bearing rod end additionally arranged on the rod end, the cam track groove 1-2-1 of the cylindrical cam is an elliptical annular groove, and the effective length of the cam track groove 1-2-1 is increased; the other end of the cam track searching rod 1-4 is fixed with one end of the adjusting cross beam 1-6 by adopting a threaded structure, the adjusting cross beam 1-6 is fixed with the linear guide rail slide block 1-5 by adopting a fixing bolt, two rows of rollers are arranged on the sliding inner side of the linear guide rail slide block 1-5, the linear guide rail slide block 1-5 is connected with the linear guide rail 1-3 in a rolling contact mode, the friction resistance generated by the reciprocating motion of the linear guide rail slide block 1-5 on the linear guide rail 1-3 is reduced in a rolling contact mode, the linear guide rail 1-3 is arranged on the linear guide rail support seat 6-1 by adopting a fixing bolt, and the linear guide rail support seat 6-1 is arranged on the bottom plate 6-5 by adopting a fixing bolt; the adjusting slide block 1-9 is fixed in a groove of the swinging cross beam 1-10 through the fine adjusting screw rod 1-8, the fine adjusting screw rod 1-8 is fixed in the groove of the swinging cross beam 1-10 through a hexagonal nut 1-19, the adjusting slide block 1-9 axially moves along the fine adjusting screw rod 1-8 in the groove of the swinging cross beam 1-10 through rotating the fine adjusting screw rod 1-8, the position of the adjusting slide block 1-9 in the fine adjusting screw rod 1-8 is changed through rotating the fine adjusting screw rod 1-8, namely the relative position of the adjusting slide block 1-9 and the swinging cross beam 1-10 is changed, and the purpose of fine adjusting is achieved; the swinging connecting rod 1-11 is connected with the bottom of the adjusting slide block 1-9 by adopting screw threads, the rolling bearing 1-12 is connected with the swinging connecting rod 1-11 by interference fit, and meanwhile, the rolling bearing 1-12 is limited in a groove in the adjusting cross beam 1-6 to reciprocate.
The front wheel transmission rod 1-14 is used for fixing the front wheel flange plate 1-13 together through jackscrews, the front wheel flange plate 1-13 is fixed with the bottom plate 6-5 through fixing bolts, the lower end of the front wheel transmission rod 1-14 is connected with the front wheel bracket 1-15 through interference fit, the front wheel 1-17 is fixed at the middle position of the front wheel stud bolt 1-16, the front wheel stud bolt 1-16 is inserted into the front wheel bracket 1-15, and the upper end of the front wheel transmission rod 1-14 is fixed with the swing beam 1-10 through the fixing nuts 1-7;
the first bevel gear 2-4 is meshed with the second bevel gear 2-6 for transmission, the cylindrical cam 1-2 on the intermediate shaft 1-1 is driven to rotate, one end of the cylindrical cam 1-2 is driven to move by the cam track searching rod 1-4 limited at the cam track groove 1-2-1, so that the linear guide rail sliding block 1-5 fixed at the bottom of the adjusting beam 1-6 through a screw at the other end of the cam track searching rod 1-4 is driven to slide along the linear guide rail 1-3 of the bottom plate 6-5, the swinging connecting rod 1-11 limited in the groove of the adjusting beam 1-6 is driven to reciprocate, meanwhile, the adjusting sliding block 1-9 fixedly connected by the swinging connecting rod 1-11 through a nut drives the swinging beam 1-10, the front wheel transmission rod 1-14 fixedly connected with the swinging beam 1-10 is driven by the front wheel transmission rod 1-14, the front wheel 1-17 is changed to swing, and the S-shaped shape is adjusted, and the S-shaped adjustment refers to telescopic adjustment of the track along the Y axis direction as shown in fig. 9.
Further, the steering fine adjustment mechanism 11 is provided with pointers 1-18 connected with the front wheel transmission rods 1-14; the bottom plate 6-5 is provided with a dial 6-9 matched with the pointer 1-18, and the departure position of the carbon-free trolley is defined by adjusting the position of the pointer 1-18 on the dial 6-9 to change the direction of the front wheel.
The steering fine adjustment mechanism 11 further comprises pointers 1-18 which are arranged at the front ends of the swing beams 1-10 and fixedly connected with the front wheel transmission rods 1-14 through nuts; the front end of the bottom plate 6-5 is provided with a dial 6-9 matched with the pointer 1-18, the direction of the pointer 1-18 is connected with the steering direction of the front wheel 1-17 through a front wheel transmission rod 1-14 to keep consistent, the departure direction of the front wheel 1-17 is correspondingly changed by adjusting the position of the pointer 1-18 on the dial 6-9, the departure position of the carbonless trolley can be defined, and the S-shaped departure position adjustment refers to the phase change of a track curve as shown in fig. 9.
Further, the weight 8 of the gravity assembly 4 is connected to the winding cone 3-2 on the driving shaft 3-3 of the driving assembly 3 via the string 7 which bypasses the fixed pulley 4-4, for converting gravitational potential energy into mechanical energy.
As shown in fig. 1 and 6, three guide rods 4-3 in the gravity assembly 4 are arranged in a triangle manner, the lower ends of the guide rods 4-3 are fixed with a support plate 4-2 through fixing nuts, the support plate 4-2 is fixed with the upper end of a support rod 4-1 through the fixing nuts, four support rods 4-1 are arranged in a rectangular manner, and the support plate 4-2 is provided with a circular through hole matched with the heavy hammer 8; the lower end of the supporting rod 4-1 is fixed with the bottom plate 6-5 through a fixing nut; the upper end of the guide rod 4-3 is fixed with the tripod cross beam 4-8 through a fixing nut, the tripod cross beam 4-8 is fixed with the fixed pulley stepped shaft bearing seat 4-7 through a fixing bolt, the fixed pulley stepped shaft rolling bearing 4-6 is assembled and inserted into the fixed pulley stepped shaft bearing seat 4-7, the fixed pulley stepped shaft 4-5 is assembled and inserted into the fixed pulley stepped shaft rolling bearing 4-6, and the fixed pulley 4-4 is arranged in the middle of the fixed pulley stepped shaft 4-5;
one end of the string 7 is tied at the upper end of the heavy hammer 8, and the other end of the string 7 is tied on the winding cone 3-2 in the driving component 3 by bypassing the fixed pulley 4-4; the winding cone 3-2 is fixed on the driving shaft 3-3 through interference fit, the string 7 is pulled to enable the heavy hammer 8 to rise to the top, the heavy hammer is loosened to enable the heavy hammer to fall, and accordingly the driving shaft 3-3 is driven to rotate through the string 7, the driving assembly 3 is driven to rotate, gravitational potential energy is converted into mechanical energy, and driving force is provided for the whole carbonless trolley.
Further, the large gear 3-5 on the driving shaft 3-3 is meshed with the small gear 5-3 on the driven shaft 5-1 of the rear wheel transmission assembly 5, the driven shaft 5-1 drives the rear wheel 5-5 to move, the small gear 5-3 mounted on the driven shaft 5-1 in the rear wheel transmission assembly 5 is meshed with the large gear 3-5 on the driving shaft 3-3 by adopting a transmission reduction ratio of 4:1, and the small gear 5-3 is fixed on the driven shaft 5-1 through interference fit.
Further, the driven shaft 5-1 is also provided with a speed reducer 5-2. The speed reducer 5-2 is fixed on the driven shaft 5-1 through interference fit, as shown in fig. 2, the driven shaft 5-1 is installed on the driven shaft bearing seat 6-4 through the driven shaft rolling bearing 6-6, the driven shaft bearing seat 6-4 is fixed with the bottom plate 6-5 through a fixing bolt, the rear wheel flange 5-4 is fixed at two ends of the driven shaft 5-1 through jackscrews, and the rear wheel 5-5 is fixed with the rear wheel flange 5-4 through a fixing bolt. Due to the existence of the speed reducer 5-2, the two rear wheels can move forward at different speeds in the turning process of the trolley, and the accuracy of the trolley track and the stability of the whole trolley in the running process of the trolley are improved.
The adjustable carbon-free trolley with the S-shaped track provided by the invention is a carbon-free trolley which converts gravitational potential energy generated when the heavy hammer 8 falls into mechanical energy and takes the gravitational potential energy as a sole drive, and meanwhile, the trolley walks with the S-shaped track, and the position, the size and the shape of the S-shaped track can be adjusted.
Before the weight 8 descends, the weight 8 rises to the highest position of the guide rod 4-3, and the string 7 is wound on the winding cone 3-2 in the driving assembly 3.
When the heavy hammer 8 descends, the winding cone 3-2 in the driving assembly 3 is driven by the string, the large gear 3-5 on the driving shaft 3-3 is driven, and the large gear 3-5 and the small gear 5-3 fixed on the driven shaft 5-1 are meshed for transmission, so that the rear wheel 5-5 is driven to move, and the forward function of the trolley is realized.
In addition, the driving shaft 3-3 drives the friction wheel 3-1 on the driving shaft to rotate, the friction disc 2-1 is driven to rotate through vertical contact friction between the friction disc 2-1 and the friction wheel 3-1, the first bevel gear 2-4 on the driving shaft 2-2 is driven to rotate, the first bevel gear 2-4 is contacted with the second bevel gear 2-6 in a vertical meshing mode, the cylindrical cam 1-2 on the intermediate shaft 1-1 is driven to rotate, the cam track seeking rod 1-4 is driven to move along the cam track groove 1-2-1 on the cylindrical cam 1-2, the adjusting cross beam 1-6 fixed on the cam track seeking rod 1-4 is driven to reciprocate along the linear guide rail, the rolling bearing 1-12 in the groove of the adjusting cross beam 1-6 is driven to reciprocate, the rolling bearing 1-12 sequentially passes through the fine adjusting screw 1-8, the adjusting slide block 1-9 and the swinging cross beam 1-10 enables the front wheel bracket 1-15 to swing, and finally the front wheel 1-17 swing is achieved, so that the carbon-free trolley steering function is achieved.
When the size of the S-shaped track needs to be adjusted, the position of the friction wheel 3-1 on the driving shaft 3-3 is moved to adjust the friction between the friction wheel 3-1 and the friction disc 2-1 on the friction disc 2-1 at different radius positions of the friction disc 2-1, so that different transmission ratios of the driving shaft 3-3 and the transmission shaft 2-2 are achieved, the first bevel gear 2-4 is driven to rotate, the first bevel gear 2-4 is contacted with the second bevel gear 2-6 in a vertical meshing mode, the cam transmission mechanism 13, the sliding block transmission mechanism 12 and the adjustment steering fine adjustment mechanism 11 are driven, finally, the swing frequency of the front wheel 1-17 is adjusted through the front wheel transmission rod 1-14, and at the moment, the advancing speed of the rear wheel 5-5 is fixed, and the size of the S-shaped track can be adjusted through adjusting the swing frequency of the front wheel 1-17.
When the shape of the S-shaped track needs to be adjusted, the trimming screw 1-8 is rotated to change the position of the adjusting slide block 1-9 in the groove of the swinging cross beam 1-10, namely the relative position of the adjusting slide block 1-9 and the swinging cross beam 1-10, so that the swinging amplitude of the front wheel 1-17 is changed, and the shape of the S-shaped track can be adjusted through the swinging amplitude of the front wheel 1-17.
When the position of the S-shaped track needs to be adjusted, the departure position of the trolley can be defined by adjusting the positions of the pointers 1-18 and the scales on the dials 6-9 on the chassis assembly 6; in addition, the position of the adjusting slide block 1-9 in the swinging cross beam 1-10 is changed by adjusting the fine adjusting screw rod 1-8, namely the relative position of the adjusting slide block 1-9 and the swinging cross beam 1-10, so that the swinging amplitude of the front wheel 1-17 of the steering fine adjusting mechanism is realized, and the position of the S-shaped track is adjusted.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. The adjustable S-shaped track carbon-free trolley is characterized by comprising a driving component (3) arranged on a bottom plate (6-5), a gravity component (4) for providing driving force, a rear wheel transmission component (5) driven by the driving component (3) and used for driving a rear wheel (5-5) to rotate, and a steering adjusting component (1) used for adjusting the S-shaped track; the steering adjusting assembly (1) is connected with front wheels (1-17) through front wheel transmission rods (1-14), the front wheels (1-17) are driven to steer through adjusting the movement of the steering adjusting assembly (1) to achieve adjustment of the S-shaped track of the trolley, and the steering adjusting assembly (1) comprises a cam transmission mechanism (13), a sliding block transmission mechanism (12) and a steering fine adjustment mechanism (11) which are connected in sequence; the driving assembly (3) is connected with the cam transmission mechanism (13) through the middle transmission assembly (2), the steering fine adjustment mechanism (11) is connected with the front wheel transmission rod (1-14), the steering fine adjustment mechanism (11) comprises an adjusting slide block (1-9) which is limited in a groove of the swinging cross beam (1-10) and moves along a fine adjustment screw rod (1-8), the swinging cross beam (1-10) is connected with the front wheel transmission rod (1-14), the swinging connecting rod (1-11) fixed on the adjusting slide block (1-9) is connected with the slide block transmission mechanism (12), the relative position of the adjusting slide block (1-9) and the swinging cross beam (1-10) is changed, the swinging amplitude of the front wheel (1-17) is changed through the front wheel transmission rod (1-14), the S-shaped shape is adjusted, and the steering fine adjustment mechanism (11) is provided with a pointer (1-18) fixedly connected with the front wheel transmission rod (1-14); the base plate (6-5) is provided with a dial (6-9) matched with the pointer (1-18), the position of the pointer (1-18) on the dial (6-9) is changed, the direction of the front wheel (1-17) is changed through the front wheel transmission rod (1-14), and the departure position of the carbonless trolley is defined.
2. An adjustable S-track carbonless cart as set forth in claim 1, wherein: the friction wheel (3-1) of the driving assembly (3) is in friction transmission with the friction disc (2-1) of the intermediate transmission assembly (2); the first bevel gear (2-4) of the middle transmission assembly (2) is meshed with the second bevel gear (2-6) of the cam transmission mechanism for transmission, the motion of the friction transmission ratio adjusting steering adjusting assembly (1) is changed, and the front wheels (1-17) are driven to steer to achieve the adjustment of the S-shaped size of the trolley.
3. An adjustable S-track carbonless cart according to claim 1, wherein: the cam transmission mechanism (13) comprises an intermediate shaft (1-1) provided with a second bevel gear (2-6) and a cylindrical cam (1-2), and a cam track searching rod (1-4) for connecting the sliding block transmission mechanism (12) and the cylindrical cam (1-2), wherein one end of the cam track searching rod (1-4) is limited to move in a cam track groove (1-2-1) of the cylindrical cam (1-2).
4. An adjustable S-track carbonless cart according to claim 3, further comprising: the sliding block transmission mechanism (12) comprises an adjusting beam (1-6) which is connected with the other end of the cam track searching rod (1-4) and provided with a groove, and a linear guide rail sliding block (1-5) which is fixed at the bottom of the adjusting beam (1-6) is in sliding connection with a linear guide rail (1-3) of the bottom plate (6-5); one end of the swinging connecting rod (1-11) is limited in a groove of the adjusting cross beam (1-6) to reciprocate.
5. An adjustable S-track carbonless cart as set forth in claim 1, wherein: the heavy hammer (8) of the gravity assembly (4) is connected with the winding cone (3-2) on the driving shaft (3-3) of the driving assembly (3) through the string (7) which bypasses the fixed pulley (4-4) and is used for converting gravitational potential energy into mechanical energy.
6. An adjustable S-track carbonless cart according to claim 5, wherein: the large gear (3-5) on the driving shaft (3-3) is meshed with the small gear (5-3) on the driven shaft (5-1) of the rear wheel transmission assembly (5), and the rear wheel (5-5) is driven to move through the driven shaft (5-1).
7. An adjustable S-track carbonless cart according to claim 6, wherein: the driven shaft (5-1) is also provided with a speed reducer (5-2).
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| CN109876468A (en) * | 2019-03-27 | 2019-06-14 | 燕山大学 | A kind of double 8-shaped tracks carbon-free trolley |
| CN110180193B (en) * | 2019-04-02 | 2021-03-23 | 广东工业大学 | Carbon-free trolley fine adjustment mechanism and carbon-free trolley |
| CN110102067A (en) * | 2019-06-10 | 2019-08-09 | 安徽建筑大学 | A kind of double eight word carbon-free trolleys of purely mechanic low friction obstacle-overpass |
| CN110384590B (en) * | 2019-08-09 | 2020-08-21 | 中南大学 | Emergency medical movable sickbed capable of being transferred quickly |
| CN110743177B (en) * | 2019-10-11 | 2024-07-05 | 沈阳航空航天大学 | Double 8-shaped walking carbon-free trolley and steering mechanism thereof |
| CN113147382B (en) * | 2021-05-11 | 2022-07-01 | 湘潭大学 | Transmission adjustment mechanism of multi-track heat energy trolley |
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