CN209738708U - Tire dismouting auxiliary device - Google Patents
Tire dismouting auxiliary device Download PDFInfo
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- CN209738708U CN209738708U CN201920304341.6U CN201920304341U CN209738708U CN 209738708 U CN209738708 U CN 209738708U CN 201920304341 U CN201920304341 U CN 201920304341U CN 209738708 U CN209738708 U CN 209738708U
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- clamping jaw
- seat
- adjusting mechanism
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Abstract
The utility model discloses a tire dismouting auxiliary device to the operation degree of difficulty when can reducing the tire and dismantle in the hope. The structure includes: the tire grabbing device comprises a moving platform, a tire grabbing mechanism, a pitching adjusting mechanism and a lifting adjusting mechanism. The moving platform is provided with a roller and a portal frame, a guide rail is arranged on the portal frame, a sliding frame is connected onto the guide rail, and the sliding frame is fixedly connected with the lifting adjusting mechanism and hinged to the tire grabbing mechanism. Tire snatchs mechanism includes: the gripping driving device comprises a gripping jaw seat, a gripping jaw and a driving gripping jaw, wherein the gripping jaw seat is used for radially clamping or loosening the gripping jaw; the clamping jaw seat is hinged to the sliding frame, and the lower end of the clamping jaw seat is hinged to the executing end of the pitching adjusting mechanism. The pitching adjusting mechanism is fixedly arranged on the sliding frame, and the executing end is hinged with the tire grabbing mechanism and used for adjusting the pitching angle of the tire grabbing mechanism. The lifting adjusting mechanism comprises: base and lift drive, base and moving platform fastening connection. The utility model discloses manpower consumption when can reducing the tire and dismantle improves maintenance work efficiency.
Description
Technical Field
The utility model belongs to the technical field of tire dismouting technique and specifically relates to a tire dismouting auxiliary device is related to.
Background
The wheel disassembly is one of the items with higher service frequency in the vehicle maintenance operation, and the technical problem that how to improve the maintenance efficiency of operators and save the manpower occupied in the tire disassembly and assembly is explored by technicians all the year round. In the prior art, when the tire is disassembled, the tire to be repaired is usually lifted slightly by using a jack, nuts for fastening the tire are disassembled in sequence, and then the tire is taken off from the vehicle in a mode of lifting slightly upwards and pulling outwards. The operation of lifting upwards and pulling outwards is enough for a single person when a small-sized automobile with a small tire appearance is operated, and is careless for a transportation and engineering vehicle using a medium-sized or even large-sized tire, and even if the operation is assisted by multiple persons, danger is inevitably generated in the actual operation process. Therefore, in the disassembling operation of the medium-sized or even large-sized tire, a plurality of auxiliary tools are generally required, and much labor is consumed to remove the tire, and the same is true for the related operation when a new tire is replaced after maintenance.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a tire dismounting and mounting auxiliary device to reduce the difficulty of dismounting a tire and reduce the labor cost consumed in tire maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tire dismouting auxiliary device to can reduce the operation degree of difficulty when the tire is dismantled in the hope, reduce the manpower consumption when the tire is dismantled, improve maintenance operating efficiency.
In order to achieve the above object, the utility model provides a tire dismouting auxiliary device, include: the tire grabbing device comprises a moving platform, a tire grabbing mechanism, a pitching adjusting mechanism and a lifting adjusting mechanism.
The lower end of the moving platform is provided with a roller, and the upper end face of one end of the platform is provided with a portal frame; guide rails are respectively fixedly arranged on the two upright posts of the portal frame; the guide rail is fixedly connected with a sliding frame which freely slides along the length direction of the guide rail; the lower end of the sliding frame is fixedly connected with the free end of the lifting adjusting mechanism.
The lift adjustment mechanism includes: a base and a lifting driving device; the base is fixedly arranged on the lifting driving device; the base is fixedly connected with the upper end face of the mobile platform; the lifting driving device is used for driving the free end of the lifting driving device to ascend and descend.
The left end and the right end of the tire grabbing mechanism are respectively hinged with the sliding frame and have a motion freedom degree of pitching rotation relative to the plane where the portal frame is located; the pitching adjusting mechanism is fixedly arranged on the sliding frame; and the actuating end of the pitching adjusting mechanism is hinged with the tire grabbing mechanism and is used for adjusting the pitching angle of the tire grabbing mechanism relative to the plane of the portal frame.
The tire snatchs mechanism includes: the clamping jaw device comprises a clamping jaw seat, a clamping jaw and a grabbing driving device for driving the clamping jaw to clamp or loosen in the radial direction; the clamping jaw seat is provided with at least 3 guide slotted holes which are arranged at equal intervals along the circumferential direction; the grabbing driving device comprises a body and an executing mechanism which executes reciprocating action relative to the body; each guide slot hole is provided with one clamping jaw; the tail end of the clamping jaw penetrates through the guide slot hole and then is fixedly connected with the action connecting end of the actuating mechanism; the body is fixedly connected with the clamping jaw seat.
Preferably, the carriage includes: the device comprises two hollow slide arms and a cross rod connected between the slide arms; the pitching adjusting mechanism is fixedly arranged on the cross rod; the lower end face of the cross rod is fixedly connected with the free end of the lifting adjusting mechanism.
Preferably, the pitch adjustment mechanism comprises: the screw hole lug seat, the first screw shaft and the turnover shaft are fixedly arranged on the cross rods, and the turnover seat is fixedly arranged on the clamping jaw seat; one end of the first screw shaft is fixedly connected with a first rotating wheel; the screw thread of the shaft body of the first screw shaft is matched with the screw thread hole on the screw hole lug seat; the other end of the first screw shaft is provided with a connecting end with a rod-shaped appearance; a connecting hole is formed in the middle of the turnover shaft and is vertical to the axis direction; the rod-shaped connecting end penetrates through the connecting hole and is fixedly connected with the turnover shaft in a mode that the axis is mutually vertical; the turnover shaft is hinged with the turnover seat; the holes on the turnover seat for respectively being hinged with the turnover shaft are slotted holes.
preferably, the body is a second screw shaft; the actuator includes: the reverse double threads, the guide rod, the first sliding block, the second sliding block, the traction pin and the connecting plate are arranged on the second screw shaft; one end of the traction pin is used as an action connecting end of the actuating mechanism.
After the guide rod penetrates through the seat body of the clamping jaw seat, two ends of the guide rod are respectively fixedly connected with the outer end face of the clamping jaw seat; the first sliding block and the second sliding block are respectively sleeved on the guide rod and have freedom of movement which freely slides along the length direction of the guide rod; the first sliding block and the second sliding block are respectively in threaded connection with the second screw shaft; the thread directions of the first sliding block and the second sliding block are opposite; the first sliding block and the second sliding block are respectively connected with a plurality of connecting plates in a hinged mode; the other end of the connecting plate is hinged with one end of the traction pin; the number of the hinge pins is the same as that of the clamping jaws; the other end of each hinge pin is fixedly connected with one clamping jaw; one end of the second screw shaft is fixedly connected with a second rotating wheel; the second screw shaft penetrates through the clamping jaw seat, and two parts penetrating through the clamping jaw seat are respectively movably connected with the clamping jaw seat in a shaft hole matching mode.
Preferably, the jaws are provided with extension bars; the two ends of the extension rod are respectively connected to the clamping jaws in a pin shaft connection mode and/or between the clamping jaws and the traction pin; the extension rod is used for extending the radius of the tire which can be grabbed by the tire grabbing mechanism and/or adapting to the tire width of the grabbed tire.
Preferably, the clamping jaws are arranged in multiple groups, and the number of the clamping jaws of each group of clamping jaws is not less than 3; the overall dimension of any group of the clamping jaws is matched with the overall dimension of one tire model.
preferably, the lifting driving device is a hydraulic and/or pneumatic driving device.
Preferably, the lifting driving device is a jack.
Preferably, the portion of the jaw intended to come into contact with the tyre comprises: the device comprises a mandrel, a nylon sleeve, a seamless steel pipe and a rubber sleeve; the nylon sleeve is sleeved on the mandrel and has a freedom of movement which freely rotates relative to the axis of the mandrel; the seamless steel pipe is sleeved on the outer surface of the nylon sleeve; the rubber pipe is sleeved on the outer surface of the seamless steel pipe.
Preferably, at least one handle and/or operating arm rest is arranged on the mobile platform.
Preferably, a protection plate is fixedly arranged on the portal frame; the protection plate is provided with a slot hole which is convenient for the tire to grab the operation parts of the mechanism and the pitching adjusting mechanism to move, and an observation hole which is used for conveniently observing and aligning the operation.
The utility model discloses above-mentioned tire dismouting auxiliary device has following beneficial effect:
the utility model discloses a tire dismouting auxiliary device can effectively solve and how only need 1 operating personnel, can the technical problem of quick assembly disassembly tire. Wherein, after the tire to be repaired is jacked up by the jack, and the fixing nut is completely removed. The moving platform is used for pushing the tire dismounting auxiliary device to the position right below the tire; the pitching adjusting mechanism and the lifting adjusting mechanism are used for matching with the position movement of the moving platform to align the grabbing axis of the tire grabbing mechanism with the axis position of the tire; after the tire is aligned, operating a clamping jaw of the tire grabbing mechanism to act, and firmly grabbing the tire; after the grabbing operation is completed, operating the lifting adjusting mechanism to slightly lift the tire, and pulling the moving platform outwards until the tire is smoothly taken down. During tire assembly operation, the moving platform is pushed to move the tire to the position near the axle, and the pitching adjusting mechanism and the lifting adjusting mechanism are operated in a matched manner to quickly align the tire relative to the assembly position of the vehicle; and nuts required for fastening the tires are sequentially installed and locked in sequence, so that the related operation can be completed. The whole operation can be completed by only occupying one manpower. Because the tire is firmly fixed in the tire snatchs the mechanism all the time in the operation process, and then avoid the tire accident to empty the potential safety hazard that brings for operating personnel. In addition, the gyro wheel that sets up at the moving platform lower extreme can be convenient transport the tire to the maintenance place, and whole operation process is high-efficient laborsaving.
furthermore, the sliding frame which is only made of two hollow sliding arms and cross rods connected between the two hollow sliding arms has the technical advantages of light structure and stable connection, and can stably bear the sliding connection between the tire gripping mechanism gripping tires and the portal frame; the guide rail consisting of the two hollow sliding arms and the metal column has extremely strong bearing capacity, and the lug seats arranged on the sliding arms can conveniently and fixedly connect the left end and the right end of the tire grabbing mechanism with the sliding frame in a hinged mode; the lower end surface of the cross rod can be conveniently and fixedly connected with the free end of the lifting adjusting mechanism; meanwhile, the upper end face of the cross rod can also be used as a fixed reference position of the pitching adjusting mechanism, so that the pitching angle of the tire gripping mechanism relative to the plane of the portal frame is adjusted; further comprising: simple and light structure, integrates multiple connection functions and ensures that the connection part is stable and reliable.
Furthermore, the pitching adjusting mechanism can achieve the technical effect of accurately operating the pitching angle of the tire grabbing mechanism relative to the plane of the portal frame only by means of the matching of the screw shaft, the slotted hole and the pin hole between the turnover shafts; the adjusting mechanism can enable the tire dismounting auxiliary device to be adaptive to the rough road surface, and further, the tire dismounting auxiliary device is more suitable for being used in the field and has a wider application range.
Furthermore, the second screw shaft is provided with reverse double threads, one group of threads are used for being in threaded connection with the first sliding block, and the other group of threads are used for being in threaded connection with the second sliding block; the first sliding block and the second sliding block can be driven to move oppositely or reversely along the length direction of the guide rod by controlling the second screw shaft to rotate forwards or reversely; the first sliding block and the second sliding block are respectively connected with a plurality of traction pins through connecting plates; when the first sliding block and the second sliding block move oppositely, the traction pin moves linearly in the direction away from the axis of the second screw shaft under the pushing action of the connecting plate, so that the clamping jaw can be driven to release the tire to be grabbed; when the first sliding block and the second sliding block move oppositely, the traction pin moves linearly in the direction close to the axis of the second screw shaft under the pushing of the connecting plate, and then the clamping jaw can be driven to firmly grab the tire. In addition, because the second screw shaft is in running through two positions of the clamping jaw seat respectively with shaft hole complex mode with clamping jaw seat swing joint, when the second screw shaft rotates, relative movement can not take place along its axial, and then in the outward appearance vision, when the second runner drives the second screw shaft rotatory, only the towing pin is doing the executive action that is being close to or is keeping away from relative second screw shaft axis.
Further, because its diameter of the tire of different models and width are all inequality, the setting of extension rod for adjust the size of clamping jaw when snatching the tire of different size models respectively with corresponding tire appearance looks adaptation, be convenient for implement the pertinence to the tire of different models and firmly snatch.
furthermore, the external dimension of the clamping jaw is manufactured according to the external shapes of tires of different models, so that the clamping jaws of different models can be selected according to requirements, and the technical effect that the structures are matched with each other is achieved.
furthermore, the lifting driving device is driven by hydraulic pressure and/or air pressure, so that large lifting force can be output, and the lifting height of the tire grabbing mechanism can be accurately adjusted by a simple hardware structure. The operation can be realized only by accurately regulating and controlling the pressure in the hydraulic cylinder or the air cylinder. Preferably, when a hydraulically driven lifting device is selected, a jack is preferably used as the power take-off member.
Furthermore, the self-rotating structure consisting of the mandrel, the nylon sleeve, the seamless steel tube and the rubber sleeve is adopted, so that when the clamping jaw stably clamps the tire, the tire still has the freedom of movement of free rotation relative to the axis of the tire gripping device. When the clamped tire rotates, only the nylon sleeve rotates relative to the mandrel, and the mandrel does not rotate. After adopting above-mentioned structure, when the wheel installation, can conveniently set up bolt hole on the wheel and adjust well fast with the bolt on the rim, the operating efficiency when improving the tire installation, easy operation is light.
Further, the setting of guard plate can form powerful safety protection to operating personnel, and tire dismouting auxiliary device can let the tire dismantle only need 1 people can operate the completion, around under unmanned circumstances, if the tire that is snatched takes place the accident and drops and will cause the potential safety hazard to a certain extent, the setting of guard plate can keep apart tire and operating personnel, even the tire takes place the accident and falls, also can not cause the injury to operating personnel, and then makes tire dismouting auxiliary device's operational safety obtain improving by a wide margin. The tire grabbing mechanism and the pitching adjusting mechanism are fixedly connected to the sliding frame, when the pitching adjusting mechanism adjusts the pitching angle of the tire grabbing mechanism, the first screw shaft and the second screw shaft can be driven to axially swing upwards or downwards, and the groove holes are formed for reserving enough moving space for the first screw shaft and the second screw shaft to axially swing upwards or downwards; the observation hole that sets up on the guard plate can make things convenient for the operator to observe the operation of pressing from both sides the clamp of tire and press from both sides the operation of adjusting well before getting.
Drawings
Fig. 1 is a schematic structural view of the tire mounting and dismounting auxiliary device in the embodiment of the present invention in a perspective state;
FIG. 2 is a schematic structural view of the auxiliary device for tire mounting/dismounting shown in FIG. 1 in a non-perspective state;
FIG. 3 is a schematic view of the connection between the pitch adjustment mechanism and the tire gripping mechanism of FIG. 2;
FIG. 4 is a cross-sectional view of the connection between the pitch adjustment mechanism and the tire gripping mechanism of FIG. 2;
FIG. 5 is a cross-sectional view of the tire gripping mechanism of FIG. 1;
FIG. 6 is a partially enlarged schematic view of the cross-sectional view of FIG. 5;
FIG. 7 is a schematic view of the carriage of FIG. 1;
FIG. 8 is a schematic view of the construction of the trip shaft of FIG. 3;
FIG. 9 is a structural cross-sectional view of the trip shaft of FIG. 8;
FIG. 10 is a schematic view of the arrangement of the protection plate and the armrest in FIG. 1;
FIG. 11 is a cross-sectional view of the structure of the jaw of FIG. 1 in use in contact with a tire;
Fig. 12 is an enlarged view of the cross-section of fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
referring to fig. 1, fig. 1 is a schematic structural diagram of a tire dismounting assistance device according to an embodiment of the present invention. In a specific embodiment, the utility model provides a tire dismouting auxiliary device includes: a mobile platform 100, a tire gripping mechanism 200, a pitch adjustment mechanism 300, and a lift adjustment mechanism 400.
in fig. 1, a roller 101 is disposed at the lower end of a mobile platform 100; a portal frame 110 is arranged on the upper end face of the moving platform 100 close to one end; two upright posts 111 of the portal frame 110 are respectively and fixedly provided with a guide rail 112; a sliding frame 120 which can freely slide along the length direction of the guide rail is fixedly connected to the guide rail 112; the lower end of the carriage 120 is fixedly connected to the free end 401 of the lifting adjustment mechanism 400.
In fig. 1, the lift adjustment mechanism 400 includes: a base 410 and a lifting drive 420; the base 410 is fixedly connected with the upper end surface of the mobile platform 100, and the lifting driving device 420 is fixedly arranged on the base 410; the lifting driving device 420 is used for driving the free end 401 to ascend and descend.
in fig. 1, the left and right ends of the tire gripping mechanism 200 are respectively hinged to the carriage, and have a freedom of movement in pitch and rotation with respect to the plane of the gantry 110; the pitch adjustment mechanism 400 is fixedly provided on the carriage 120; the actuating end of the pitch adjusting mechanism 400 is hinged to the tire gripping mechanism 200 (see fig. 2 to 4 for details of connection), and is used for adjusting the pitch angle of the tire gripping mechanism 200 relative to the plane of the gantry. It should be noted that the above-mentioned hinge connection between the tire gripping mechanism 200 and the carriage may be implemented by using two metal plates 201 with ninety-degree bends at one end, and hinge-connecting with the ear seat 121 on the carriage 120.
in fig. 1, the tire gripping mechanism 200 includes: a jaw seat 210 (for illustrating the internal structure of the jaw seat, the jaw seat 210 is transparently processed in fig. 1, and with reference to fig. 2, 5 and 6 for the specific structural details of the jaw seat 210), a jaw 220, and a gripping driving device 230 (with reference to fig. 5 and 6 for the specific structural details) for driving the jaw 220 to radially clamp or loosen; the clamping jaw seat 210 is provided with at least 3 guide slot holes 211 which are arranged at equal intervals along the circumferential direction; the grasping driving device 230 includes a body 231 and an actuator 232 that performs a reciprocating motion with respect to the body 231; one clamping jaw 220 is arranged at each guide slot hole 211; the tail end of the clamping jaw 220 passes through the guide slot hole 211 and then is tightly connected with the action connecting end of the actuating mechanism 232; the body 231 is tightly connected with the jaw base 210.
Further, as shown in fig. 7, in one preferred technical solution of the present embodiment, the carriage 120 includes: two hollow slide arms 122 and a cross bar 123 connected between the slide arms; the pitch adjusting mechanism is fixedly arranged on the cross rod 123; the lower end surface D of the cross rod 123 is used for being fixedly connected with the free end of the lifting adjusting mechanism. The sliding frame made of two hollow sliding arms and cross rods connected between the two hollow sliding arms has the technical advantages of light structure and stable connection, and can stably bear the sliding connection between the tire gripping mechanism gripping tires and the portal frame; the guide rail consisting of the two hollow sliding arms and the metal column has extremely strong bearing capacity, and the lug seats 121 arranged on the sliding arms can conveniently and fixedly connect the left and right ends of the tire grabbing mechanism with the sliding frame in a hinged mode; the lower end surface of the cross rod can be conveniently and fixedly connected with the free end of the lifting adjusting mechanism; meanwhile, the upper end surface of the cross rod can also serve as a fixed reference position of the pitch adjusting mechanism (see the screw hole lug seat 310 in fig. 7 for being in threaded connection with the first screw shaft), so as to adjust the pitch angle of the tire gripping mechanism relative to the plane where the portal frame is located; further comprising: simple and light structure, integrates multiple connection functions and ensures that the connection part is stable and reliable.
Further, as shown in fig. 3, 8 and 9, in one preferred embodiment of the present invention, the pitch adjustment mechanism 300 includes: a screw lug seat 310 fixedly arranged on the cross rod, a first screw shaft 320, an overturning shaft 330 and an overturning seat 340 fixedly arranged on the clamping jaw seat 210; one end of the first screw shaft 320 is fixedly connected with a first rotating wheel 321; the screw thread of the shaft body of the first screw shaft 320 is matched with the screw hole on the screw hole lug seat 310; the other end of the first screw shaft 320 is provided with a connecting end with a rod shape; a connecting hole is formed in the middle of the turnover shaft 330 and is perpendicular to the axis direction; after the rod-shaped connecting end passes through the connecting hole, the rod-shaped connecting end is fixedly connected with the overturning shaft 330 in a mode that the axes are mutually vertical; the turning shaft 330 is hinged with the turning seat 340; the holes on the turning base 340 for respectively connecting the turning shaft 330 in a hinged manner are slotted holes 341. Specifically, the structure of the flipping axis 330 is shown in fig. 8 and 9. In the embodiment, the pitching adjusting mechanism can achieve the technical effect of accurately operating the pitching angle of the tire gripping mechanism relative to the plane of the portal frame only by means of the matching of the screw shaft, the slotted hole and the pin hole between the turnover shafts; the adjusting mechanism can enable the tire dismounting auxiliary device to be adaptive to the rough road surface, and further, the tire dismounting auxiliary device is more suitable for being used in the field and has a wider application range.
Further, referring to fig. 6, in one preferred embodiment of the present invention, the shaft 231 is a second screw shaft; the actuator 232 includes: a reverse double thread, a guide bar 233, a first slider 234, a second slider 235, a traction pin 236 and a link plate 237 provided on the second screw shaft 231; one end of the kingpin 236 serves as an actuating connection end for the actuator 232.
In fig. 6, after the guide rod penetrates through the body of the jaw seat 210, two ends of the guide rod are respectively fixedly connected with the outer end surface of the jaw seat 210; the first sliding block 234 and the second sliding block 235 are respectively sleeved on the guide rod 233 and have freedom of movement which can freely slide along the length direction of the guide rod 233; the first slider 234 and the second slider 235 are respectively in threaded connection with the second screw shaft 231; the first slider 234 and the second slider 235 have opposite thread directions; a plurality of connecting plates 237 are respectively connected to the first sliding block 234 and the second sliding block 235 in an articulated manner; the other end of the link plate 237 is hinged with one end of the traction pin 236; the number of hinge pins 236 is the same as the number of jaws 220; the other end of each hinge pin 236 is fixedly connected with one of the clamping jaws 220; one end of the second screw shaft 231 is fixedly connected with a second rotating wheel 238; the second screw shaft 231 penetrates through the jaw base 210, and is movably connected with the jaw base 210 in a shaft hole matching manner at two positions penetrating through the jaw base 210. The second screw shaft 231 is provided with double reverse threads, wherein one thread group is used for being in threaded connection with the first sliding block 234, and the other thread group is used for being in threaded connection with the second sliding block 235; the first sliding block and the second sliding block can be driven to move oppositely or reversely along the length direction of the guide rod by controlling the second screw shaft to rotate forwards or reversely; since the first slide 234 and the second slide 235 are connected with a plurality of traction pins 236 through connecting plates 237 respectively; when the first sliding block 234 and the second sliding block 235 move towards each other, the traction pin 236 is pushed by the connecting plate 237 to move linearly away from the axis direction of the second screw shaft 231, so as to drive the clamping jaw 220 to release the clamping of the tire; when the first slide block 234 and the second slide block 235 move in opposite directions, the traction pin 236 is pushed by the link plate 237 to move linearly in a direction close to the axis of the second screw shaft 231, so as to drive the clamping jaw 220 to firmly grip the tire. In addition, since the second screw shaft 231 is movably connected to the jaw base in a shaft hole fit manner at two positions penetrating through the jaw base 210, when the second screw shaft 231 rotates, no relative movement occurs along the axial direction thereof, and further, in terms of appearance, when the second runner 238 drives the second screw shaft 231 to rotate, only the traction pin 236 performs an action of approaching or separating from the axis of the second screw shaft 231.
Further, in one preferred technical solution of the present embodiment, the clamping jaw is provided with an extension rod; the two ends of the extension rod are respectively connected to the clamping jaws in a pin shaft connection mode and/or between the clamping jaws and the traction pin; the extension rod is used for extending the radius of the tire which can be grabbed by the tire grabbing mechanism and/or adapting to the tire width of the grabbed tire. Because its diameter of the tire of different models and width are all inequality, the setting of extension rod for adjust the size of clamping jaw when snatching the tire of different size models respectively with corresponding tire appearance looks adaptation, be convenient for implement the firm of pertinence and snatch to the tire of different models. It should be noted that the connection manner of adding the extension piece to the rod-like member is based on the prior art, and therefore, the details of the connection are not further illustrated and described herein.
Further, in one preferable technical scheme of this embodiment, the number of the clamping jaws is multiple groups, and the number of the clamping jaws in each group is not less than 3; the overall dimension of any group of the clamping jaws is matched with the overall dimension of one tire model. The clamping jaws are manufactured according to the shapes of tires of different models, so that the clamping jaws of different models can be selected according to requirements, and the technical effect that the structures are matched with each other is achieved.
Further, in one preferred technical solution of the present embodiment, the lifting driving device 420 is a hydraulic and/or pneumatic driving device. The lifting driving device is driven by hydraulic pressure and/or air pressure, so that large lifting force can be output, and the lifting height of the tire grabbing mechanism can be accurately adjusted by a simple hardware structure. The operation can be realized only by accurately regulating and controlling the pressure in the hydraulic cylinder or the air cylinder. Preferably, when a hydraulic lifting drive is selected, a jack is preferably used as the power take-off member.
Further, as shown in fig. 10, in one preferred technical solution of this embodiment, at least one handle and/or operation arm rest F is disposed on the moving platform.
further, as shown in fig. 10, in one preferred technical solution of this embodiment, a protection plate B is fixedly disposed on the gantry; the protection plate B is provided with a slotted hole C which is convenient for the tire to grab the operation parts of the mechanism and the pitching adjusting mechanism to move, and an observation hole G which is used for conveniently observing and aligning the operation. The setting of guard plate can form powerful safety protection to operating personnel, and tire dismouting auxiliary device can let the tire dismantle only need 1 people can operate the completion, around under unmanned circumstances, if the tire that is snatched takes place the accident and drops and will cause the potential safety hazard to a certain extent, the setting of guard plate can keep apart tire and operating personnel, even the tire takes place the accident and falls, also can not cause the injury to operating personnel, and then makes tire dismouting auxiliary device's operational safety obtain improving by a wide margin. The tire grabbing mechanism and the pitching adjusting mechanism are fixedly connected to the sliding frame, when the pitching adjusting mechanism adjusts the pitching angle of the tire grabbing mechanism, the first screw shaft and the second screw shaft can be driven to axially swing upwards or downwards, and the groove holes are formed for reserving enough moving space for the first screw shaft and the second screw shaft to axially swing upwards or downwards; the observation hole that sets up on the guard plate can make things convenient for the operator to observe the operation of pressing from both sides the clamp of tire and press from both sides the operation of adjusting well before getting.
Further, as shown in fig. 11 and 12, in one preferred technical solution of the present embodiment, the portion of the clamping jaw 220 for contacting with the tire includes: a mandrel 221, a nylon sleeve 222, a seamless steel pipe 223 and a rubber sleeve 224; the nylon sleeve 222 is sleeved on the mandrel 221 and has a freedom of movement which freely rotates relative to the axis of the mandrel 221; the seamless steel pipe 223 is sleeved on the outer surface of the nylon sleeve 222; the rubber tube 224 is sleeved on the outer surface of the seamless steel tube 223. The self-rotating structure consisting of the mandrel, the nylon sleeve, the seamless steel tube and the rubber sleeve is adopted, so that when the clamping jaw stably clamps the tire, the tire still has the freedom of movement which freely rotates relative to the axis of the tire gripping device. When the clamped tire rotates, only the nylon sleeve rotates relative to the mandrel, and the mandrel does not rotate. After adopting above-mentioned structure, when the wheel installation, can conveniently set up bolt hole on the wheel and adjust well fast with the bolt on the rim, the operating efficiency when improving the tire installation, easy operation is light. It should be noted that, in order to facilitate the tire to be held and still be able to rotate freely, the structural form of the portion of the clamping jaw used for contacting with the tire is not limited to the above-mentioned special structural arrangement, and it is also easy for those skilled in the art to think of the above-mentioned embodiment by simplifying the structure into a rolling connection with the mandrel through the bearing and sleeving the sleeve-like component on the outer ring of the bearing, so the structure of the clamping jaw structure made by the technical means known in the art based on the above-mentioned structure is also claimed in the present application.
the utility model discloses a tire dismouting auxiliary device can effectively solve and how only need 1 operating personnel, can the technical problem of quick assembly disassembly tire. Wherein, after the tire to be repaired is jacked up by the jack, and the fixing nut is completely removed. The moving platform is used for pushing the tire dismounting auxiliary device to the position right below the tire; the pitching adjusting mechanism and the lifting adjusting mechanism are used for matching with the position movement of the moving platform to align the grabbing axis of the tire grabbing mechanism with the axis position of the tire; after the tire is aligned, operating a clamping jaw of the tire grabbing mechanism to act, and firmly grabbing the tire; after the grabbing operation is completed, operating the lifting adjusting mechanism to slightly lift the tire, and pulling the moving platform outwards until the tire is smoothly taken down. During tire assembly operation, the moving platform is pushed to move the tire to the position near the axle, and the pitching adjusting mechanism and the lifting adjusting mechanism are operated in a matched manner to quickly align the tire relative to the assembly position of the vehicle; and nuts required for fastening the tires are sequentially installed and locked in sequence, so that the related operation can be completed. The whole operation can be completed by only occupying one manpower. Because the tire is firmly fixed in the tire snatchs the mechanism all the time in the operation process, and then avoid the tire accident to empty the potential safety hazard that brings for operating personnel. In addition, the gyro wheel that sets up at the moving platform lower extreme can be convenient transport the tire to the maintenance place, and whole operation process is high-efficient laborsaving.
In the above embodiments, although the pitch adjustment mechanism is provided to achieve the technical effect of expanding the tire mounting/dismounting assistance device to adapt to a rough road surface, the present application obtains better practicability. After the structure is abandoned, the tire grabbing mechanism is directly fixed on the sliding frame on the premise of not having the pitching adjusting function, the lifting of the sliding frame is adjusted only by the lifting adjusting mechanism, and the grabbing operation of the tire is realized only by the tire grabbing mechanism.
the above embodiments are merely preferred embodiments of the present invention, and all changes and modifications based on the technical solutions of the present invention should not be excluded from the protection scope of the present invention.
Claims (10)
1. A tire dismounting assistance device, comprising: the device comprises a mobile platform, a tire grabbing mechanism, a pitching adjusting mechanism and a lifting adjusting mechanism;
The lower end of the moving platform is provided with a roller; a portal frame is arranged on the upper end face of one end of the platform; guide rails are respectively fixedly arranged on the two upright posts of the portal frame; the guide rail is fixedly connected with a sliding frame which freely slides along the length direction of the guide rail; the lower end of the sliding frame is fixedly connected with the free end of the lifting adjusting mechanism;
The lift adjustment mechanism includes: a base and a lifting driving device; the base is fixedly arranged on the lifting driving device; the base is fixedly connected with the upper end face of the mobile platform; the lifting driving device is used for driving the free end of the lifting driving device to ascend and descend;
The left end and the right end of the tire grabbing mechanism are respectively hinged with the sliding frame and have a motion freedom degree of pitching rotation relative to the plane where the portal frame is located; the pitching adjusting mechanism is fixedly arranged on the sliding frame; the actuating end of the pitching adjusting mechanism is hinged with the tire grabbing mechanism and is used for adjusting the pitching angle of the tire grabbing mechanism relative to the plane of the portal frame;
The tire snatchs mechanism includes: the clamping jaw device comprises a clamping jaw seat, a clamping jaw and a grabbing driving device for driving the clamping jaw to clamp or loosen in the radial direction; the clamping jaw seat is provided with at least 3 guide slotted holes which are arranged at equal intervals along the circumferential direction; the grabbing driving device comprises a body and an executing mechanism which executes reciprocating action relative to the body; each guide slot hole is provided with one clamping jaw; the tail end of the clamping jaw penetrates through the guide slot hole and then is fixedly connected with the action connecting end of the actuating mechanism; the body is fixedly connected with the clamping jaw seat.
2. The tire mounting/demounting assist device according to claim 1, wherein the carriage includes: the device comprises two hollow slide arms and a cross rod connected between the slide arms; the pitching adjusting mechanism is fixedly arranged on the cross rod; the lower end face of the cross rod is fixedly connected with the free end of the lifting adjusting mechanism.
3. The tire mounting/demounting assist device according to claim 2, wherein the pitch adjustment mechanism includes: the screw hole lug seat, the first screw shaft and the turnover shaft are fixedly arranged on the cross rod, and the turnover seat is fixedly arranged on the clamping jaw seat; one end of the first screw shaft is fixedly connected with a first rotating wheel; the screw thread of the shaft body of the first screw shaft is matched with the screw thread hole on the screw hole lug seat; the other end of the first screw shaft is provided with a connecting end with a rod-shaped appearance; a connecting hole is formed in the middle of the turnover shaft and is vertical to the axis direction; the rod-shaped connecting end penetrates through the connecting hole and is fixedly connected with the turnover shaft in a mode that the axis is mutually vertical; the turnover shaft is hinged with the turnover seat; the holes on the turnover seat for respectively being hinged with the turnover shaft are slotted holes.
4. The tire mounting/demounting assist device according to claim 1, wherein the body is a second screw shaft; the actuator includes: the reverse double threads, the guide rod, the first sliding block, the second sliding block, the traction pin and the connecting plate are arranged on the second screw shaft; one end of the traction pin is used as an action connecting end of the actuating mechanism;
After the guide rod penetrates through the seat body of the clamping jaw seat, two ends of the guide rod are respectively fixedly connected with the outer end face of the clamping jaw seat; the first sliding block and the second sliding block are respectively sleeved on the guide rod and have freedom of movement which freely slides along the length direction of the guide rod; the first sliding block and the second sliding block are respectively in threaded connection with the second screw shaft; the thread directions of the first sliding block and the second sliding block are opposite; the first sliding block and the second sliding block are respectively connected with a plurality of connecting plates in a hinged mode; the other end of the connecting plate is hinged with one end of the traction pin; the number of the hinge pins is the same as that of the clamping jaws; the other end of each hinge pin is fixedly connected with one clamping jaw; one end of the second screw shaft is fixedly connected with a second rotating wheel; the second screw shaft penetrates through the clamping jaw seat, and two parts penetrating through the clamping jaw seat are respectively movably connected with the clamping jaw seat in a shaft hole matching mode.
5. The tire mounting and demounting assist device as set forth in claim 4, wherein the gripping jaw is provided with an extension bar; the two ends of the extension rod are respectively connected to the clamping jaws in a pin shaft connection mode and/or between the clamping jaws and the traction pin; the extension rod is used for extending the radius of the tire which can be grabbed by the tire grabbing mechanism and/or adapting to the tire width of the grabbed tire.
6. the auxiliary device for dismounting and mounting a tire according to claim 1, wherein the clamping jaws are arranged in a plurality of groups, and the number of the clamping jaws of each group of the clamping jaws is not less than 3; the overall dimension of any group of the clamping jaws is matched with the overall dimension of one tire model.
7. The tire mounting and demounting assist device as claimed in claim 1, wherein the lifting drive device is a hydraulic and/or pneumatic drive device.
8. The tire mounting and demounting assist device as set forth in claim 1, wherein the portion of the gripping jaw for contacting the tire comprises: the device comprises a mandrel, a nylon sleeve, a seamless steel pipe and a rubber sleeve; the nylon sleeve is sleeved on the mandrel and has a freedom of movement which freely rotates relative to the axis of the mandrel; the seamless steel pipe is sleeved on the outer surface of the nylon sleeve; the rubber pipe is sleeved on the outer surface of the seamless steel pipe.
9. The tire mounting and demounting assist device as claimed in claim 1, wherein the mobile platform is provided with at least one handle and/or operating arm.
10. the auxiliary device for assembling and disassembling a tire according to claim 1, wherein a protective plate is fixedly arranged on the portal frame; the protection plate is provided with a slot hole which is convenient for the tire to grab the operation parts of the mechanism and the pitching adjusting mechanism to move, and an observation hole which is used for conveniently observing and aligning the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304341.6U CN209738708U (en) | 2019-03-11 | 2019-03-11 | Tire dismouting auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304341.6U CN209738708U (en) | 2019-03-11 | 2019-03-11 | Tire dismouting auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209738708U true CN209738708U (en) | 2019-12-06 |
Family
ID=68716352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920304341.6U Expired - Fee Related CN209738708U (en) | 2019-03-11 | 2019-03-11 | Tire dismouting auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209738708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431683A (en) * | 2022-09-30 | 2022-12-06 | 中国煤炭科工集团太原研究院有限公司 | Multi-specification tire semi-automatic dismounting device and transportation equipment |
-
2019
- 2019-03-11 CN CN201920304341.6U patent/CN209738708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431683A (en) * | 2022-09-30 | 2022-12-06 | 中国煤炭科工集团太原研究院有限公司 | Multi-specification tire semi-automatic dismounting device and transportation equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20210311 |