CN210970538U - Portable tire dismounting device - Google Patents
Portable tire dismounting device Download PDFInfo
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- CN210970538U CN210970538U CN201921401169.2U CN201921401169U CN210970538U CN 210970538 U CN210970538 U CN 210970538U CN 201921401169 U CN201921401169 U CN 201921401169U CN 210970538 U CN210970538 U CN 210970538U
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- supporting beam
- portable tire
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Abstract
The utility model provides a portable tire dismounting device, this portable tire dismounting device includes support and two lead screws, the support has a supporting beam and two bracing pieces, two bracing pieces parallel arrangement and all perpendicular to a supporting beam, two bracing pieces are installed respectively at a supporting beam's both ends, the one end and a supporting beam fixed connection of bracing piece, the other end of bracing piece is equipped with the pressure-bearing portion that is used for supporting the tire, a supporting beam still has two perforating holes that set up at an interval, the perforating hole is offered along the direction that is on a parallel with the bracing piece; two lead screws penetrate through the two through holes respectively, one end, close to the bearing portion, of each lead screw is a fixed end, the other end of each lead screw is a threaded end, a locking nut is sleeved outside each threaded end, and the locking nut and the lead screws are in threaded fit and abut against the supporting beams. The portable tire dismounting device can rapidly replace a tire without dismounting a rim.
Description
Technical Field
The utility model relates to a motor vehicle maintenance field, in particular to portable tire dismounting device.
Background
The mass and the size of the used tires of large engineering machinery are greatly different according to the bearing mass and the passing performance, the mass of each set of tire assembly of the commonly used engineering machinery tires is about 500Kg-2000Kg, the mass of a single set of tires of the large mining engineering machinery reaches 5000Kg-8000Kg, once the engineering machinery tires have faults (tire puncture and air leakage), the field repair work is very difficult, and the work of disassembling, repairing, installing and the like can be completed only by needing a large jack, a crane, a tire transport vehicle, a plurality of professional maintenance personnel and mechanical operators in a day.
At present, efficient construction is a foundation for each enterprise, engineering equipment usually needs to run for 24 hours, constructors perform two shifts or three shifts, once a single equipment (large-scale engineering machinery) tire is damaged in construction, the whole construction progress can be delayed by the equipment, and construction cost with hidden loss of as little as tens of thousands of yuan and as much as dozens of thousands of yuan is caused for the enterprise. Sometimes, tires with different specifications are needed to meet construction requirements due to different work areas. Different tires need to be replaced to adapt to different work areas.
A construction project needs different numbers of engineering machinery, each equipment is provided with at least four tires, each tire is provided with more than ten to thirty-ten sets of bolts with the torque of more than 1000 Nm, the wheel rims and the tires need to be detached from a vehicle body together when the tires are replaced, at present, the bolts with large torque are detached firstly completely by manpower, then heavy tires are detached from the vehicle body by cooperation of a plurality of people, after the outer tires which are in accordance with the use of the work area are replaced, the heavy tires are inflated to the specified air pressure value, and then the heavy tires are installed on an axle by cooperation of a plurality of people. One set of process from dismantling to installing is accomplished by many people's cooperation completely, changes one set of tire and need to spend about 4 hours at least, and 4 sets of tires can be changed to the staff fastest every day, subtracts because of physical power and other factors, can only change 3 sets of tires a day, according to 5 engineering machine construction, and it needs 6 days time to change the tire. The daily consumption cost of one construction project is more than dozens of ten thousand yuan.
Because the instrument that traditional tire was dismantled and was adopted with the installation is comparatively simple, relies on manpower and engineering machine tool cooperation to accomplish completely, intensity of labour is too big, and work efficiency is low moreover, and personnel often cause the injury incident of colliding with because of factors such as the tire is bulky, equipment mass is heavy, the ground is soft, the body force is not enough and takes place. Tire changing operations are therefore a high intensity, high risk, dangerous operation, each tire change presenting a degree of challenge to maintenance personnel.
In view of the above problems, it is found that the conventional tire dismounting tools are conventional dismounting tools through investigation of construction sites of a plurality of models of construction machines, and thus work efficiency cannot be improved any more, and a more portable and advanced tire dismounting device is required to improve work efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable tire dismounting device can be at quick replacement tire under the condition of exempting from to tear open the rim.
In order to achieve the above object, the utility model provides a portable tire dismounting device, wherein, portable tire dismounting device includes:
the support is provided with a supporting beam and two supporting rods, the two supporting rods are arranged in parallel and are perpendicular to the supporting beam, the two supporting rods are respectively installed at two ends of the supporting beam, one end of each supporting rod is fixedly connected with the supporting beam, the other end of each supporting rod is provided with a pressure bearing part for supporting a tire, the supporting beam is further provided with two through holes arranged at intervals, and the through holes are formed in a direction parallel to the supporting rods;
the two screw rods respectively penetrate through the two through holes, one end, close to the bearing portion, of each screw rod is a fixed end, the other end of each screw rod is a threaded end, a locking nut is sleeved outside each threaded end, and each locking nut is matched with the corresponding screw rod through threads and abuts against the corresponding supporting beam.
The portable tire dismounting device is characterized in that a pressure-bearing assembly is further arranged between the locking nut and the support beam, and the pressure-bearing assembly comprises a first gasket, a pressure bearing and a second gasket which are sequentially sleeved on the lead screw.
The portable tire dismounting device is characterized in that a sleeve is further sleeved outside the threaded end, and a connecting groove correspondingly matched with the locking nut is formed in the end face, facing towards one end of the locking nut, of the sleeve.
The portable tire dismounting device as described above, wherein the lock nut is a hexagonal nut, and the cross section of the coupling groove is hexagonal.
The portable tire dismounting device as described above, wherein the other end of the sleeve is provided with a connecting portion for connecting with a wrench.
The portable tire dismounting device is characterized in that the end face of the fixed end of the lead screw is provided with a threaded hole which can be correspondingly matched with a tire bolt.
The portable tire demounting device as described above, wherein the pressure receiving portion is in the shape of a circular arc.
The portable tire dismounting device as described above, wherein the support beam includes a connecting section and mounting sections respectively provided at both ends of the connecting section, and the two through holes are respectively provided in the two mounting sections.
Compared with the prior art, the utility model has the following characteristics and advantages:
the utility model provides a portable tire dismounting device is quick replacement tire under the condition of exempting from to tear open the rim, greatly reduced work safety risk and intensity of labour when personnel maintain and change the engineering machine tool tire, shorten tire maintenance change time, improve work efficiency. The time consumption for replacing the tire of the engineering machinery is shortened by 1/2, the working efficiency is improved by more than one time, the time delay caused by tire damage is saved for construction projects, and the construction method is used for construction to improve the working efficiency and the economic benefit.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.
Fig. 1 is a schematic structural view of a portable tire dismounting device provided by the present invention;
FIG. 2 is a schematic structural view of a lead screw of the present invention;
fig. 3 is a schematic structural view of the middle sleeve of the present invention;
FIG. 4 is a schematic view taken along direction A in FIG. 3;
FIG. 5 is a schematic view of the direction B in FIG. 3
Fig. 6 is a schematic structural view of the bracket of the present invention;
fig. 7 is a perspective view of the portable tire dismounting device provided by the present invention;
fig. 8 is a schematic view of the portable tire dismounting device according to the present invention.
Description of reference numerals:
100. a portable tire removal device; 10. A support;
11. a support beam; 111. A connecting section;
112. an installation section; 12. A support bar;
13. a pressure-bearing portion; 14. A through hole;
20. a lead screw; 21. A threaded hole;
30. locking the nut; 40. A pressure-bearing assembly;
41. a first gasket; 42. A pressure bearing;
43. a second gasket; 50. A sleeve;
51. connecting grooves; 52. A connecting portion;
200. a tire; 210. Tire bolt.
Detailed Description
The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention.
As shown in fig. 1 to 8, the present invention provides a portable tire dismounting device 100, which comprises a support 10 and two screws 20, wherein the support 10 has a supporting beam 11 and two supporting rods 12 arranged in parallel, the two supporting rods 12 are respectively installed at two ends of the supporting beam 11 and are perpendicular to the supporting beam 11, one end of the supporting rod 12 is fixedly connected with the supporting beam 11, the other end of the supporting rod 12 is provided with a bearing portion 13 for supporting a tire, the supporting beam 11 is further provided with two through holes 14 arranged at intervals, and the through holes 14 are formed along a direction parallel to the supporting rod 12; the two screw rods 20 are respectively arranged in the two through holes 14 in a penetrating manner, one end, close to the bearing part 13, of each screw rod 20 is an installation end, the other end of each screw rod 20 is a threaded end, a locking nut 30 is sleeved outside each threaded end, and each locking nut 30 is in threaded fit with the corresponding screw rod 20 and abuts against the corresponding supporting beam 11.
The utility model provides a portable tire dismounting device 100, as shown in FIG. 8, when the maintenance personal carried out the tire change, make lead screw 20 perpendicular and tire setting, and support lead screw 20's installation end top in the rim of tire 200, two lead screw symmetries set up the both sides (the both ends of rim diagonal connection) at the rim, install support 10 again on two lead screws 20 and make two holding portion 13 of support 10 top in the child mouth department of rim both sides, install lock nut 30 outside lead screw 20's thread end, and utilize the instrument through rotatory two lock nut 30, make support 10 remove towards the tire, two holding portion 13 oppress tire rubber, realize that circumference rim breaks away from with the tire, later dismantle the installation sealing washer, the retaining ring, the lock washer, finally reach and take off the child purpose. As can be seen from the above working process, the portable tire dismounting device 100 of the present invention can rapidly replace the tire without dismounting the rim.
The utility model provides a portable tire dismounting device 100 quick replacement tire under the condition of exempting from to tear open the rim, greatly reduced work safety risk and intensity of labour when personnel maintain and change the engineering machine tool tire, shorten tire maintenance change time, improve work efficiency. The time consumption for replacing the tire of the engineering machinery is shortened by 1/2, the working efficiency is improved by more than one time, the time delay caused by tire damage is saved for construction projects, and the construction method is used for construction to improve the working efficiency and the economic benefit.
In an optional example of the present invention, a pressure-bearing assembly 40 is further disposed between the lock nut 30 and the support beam 11, and the pressure-bearing assembly 40 includes a first spacer 41, a pressure bearing 42 and a second spacer 43 sequentially sleeved on the screw 20. The pressure bearing 42 is an axial pressure bearing, and is used for bearing the pressure (axial force) when the lock nut 30 is screwed, so as to further ensure that the two pressure bearing portions 13 of the bracket 10 can effectively press the tire rubber.
In an optional example of the present invention, as shown in fig. 1 and fig. 3 to fig. 5, a sleeve 50 is further disposed on the screw rod 20, the sleeve 50 is sleeved outside the threaded end, a connecting groove 51 corresponding to the locking nut 30 is disposed on a end surface of the sleeve 50 facing one end of the locking nut 30, and the locking nut 30 is disposed in the connecting groove 51. During the use, with sleeve 50 cover outside the screw thread end of lead screw 20, lock nut 30 inserts in the spread groove 51, later, rotates sleeve 50, and lock nut 30 rotates along with sleeve 50 one, and lock nut 30 screws gradually, and it is inside sunken to compress tightly a supporting beam 11 finally and drive pressure-bearing portion 13 oppression tire rubber. With the tightening of the locking nut 30, when the tire rubber is sunken inwards to a certain depth, the tire rubber can be driven to be circumferentially separated from the rim, and therefore the purpose of simply and rapidly taking off the tire is achieved.
In an alternative example, as shown in fig. 4, the lock nut 30 has a hexagonal shape, and the coupling groove 51 has a hexagonal shape in cross section. Thus, to ensure that the lock nut 30 is rotated synchronously when the sleeve 50 is rotated.
In an alternative example, as shown in fig. 5, the other end of the sleeve 50 is provided with a coupling portion 52 for coupling with a wrench. Thus, by means of the connection 52, the socket 50 can be quickly rotated by a tool (a quick ratchet wrench or a pneumatic torque wrench) to improve efficiency.
In an alternative example of the present invention, as shown in fig. 1 and 2, a threaded hole 21 capable of corresponding to a tire bolt is formed in an end surface of the mounting end of the screw rod 20. Thus, when the portable tire dismounting device 100 is installed and used, the installation end of the lead screw 20 is in threaded connection with the tire bolt, and the portable tire dismounting device can be quickly positioned and is very stable. The two threaded spindles 20 can be mounted on two tire bolts located on the diagonal of the rim, respectively.
In an alternative example of the present invention, as shown in fig. 6 to 8, the pressure receiving portion 13 is formed in a circular arc shape. Thus, the shape of the pressure receiving portion 13 is the same as the shape of the tire, and the pressure receiving portion 13 can press the tire rubber easily.
In an alternative example of the present invention, as shown in fig. 6, the support beam 11 includes a connection section 111 and mounting sections 112 respectively disposed at two ends of the connection section 111, and two through holes 14 are respectively formed in the two mounting sections 112. Thus, in practical application, the mounting segment 112 and the connecting segment 111 with different length specifications can be arranged, and when in use, the mounting segment 112 and the connecting segment 111 with proper length are selected according to the tire specifications of different vehicles. Of course, the radian of the pressure receiving portion 13 and the inner diameter of the threaded hole 21 on the screw rod 20 can be provided with various specifications to meet the requirements of tires with different specifications.
Referring to fig. 1 to 8, a detailed operation of the portable tire dismounting device 100 according to the present invention will be described:
when a maintenance person replaces a tire, the portable tire dismounting device 100 is placed into a rim of the tire 200, two lead screws 20 and two tire bolts 210 are fixed in a diagonal connection manner, the support 10 penetrates through the lead screws 20 and is pressed against tire ports on two sides of the rim, and a first gasket 41, a pressure bearing 42, a second gasket 43, a lock nut 30 and a sleeve 50 are respectively and sequentially installed from threaded ends of the two lead screws 20, so that the assembly of the portable tire dismounting device 100 is completed.
After the portable tire dismounting device 100 is assembled, the two sleeves 50 are rotated by a tool, such as a quick ratchet wrench or a pneumatic torque wrench (pneumatic hammer), so that the sleeves 50 drive the locking nuts 30 to rotate, and finally the support 10 is compressed and the support 10 is driven to press the tire rubber to be inwards concave in the screwing process of the locking nuts 30. With the tightening of the locking nut 30, when the tire rubber is sunken inwards to a certain depth, the tire rubber can be driven to be circumferentially separated from the rim, and therefore the purpose of simply and rapidly taking off the tire is achieved.
In the following description of the embodiments, the invention is described in detail, but the description is not to be construed as limiting the invention for any reason, and in particular, the features described in the different embodiments may be combined with each other as desired, thereby forming other embodiments, and the features are understood to be applicable to any one embodiment and not limited to the described embodiments unless explicitly described to the contrary.
Claims (8)
1. A portable tire changing apparatus, comprising:
the support is provided with a supporting beam and two supporting rods, the two supporting rods are arranged in parallel and are perpendicular to the supporting beam, the two supporting rods are respectively installed at two ends of the supporting beam, one end of each supporting rod is fixedly connected with the supporting beam, the other end of each supporting rod is provided with a pressure bearing part for supporting a tire, the supporting beam is further provided with two through holes arranged at intervals, and the through holes are formed in a direction parallel to the supporting rods;
the two screw rods respectively penetrate through the two through holes, one end, close to the bearing portion, of each screw rod is a fixed end, the other end of each screw rod is a threaded end, a locking nut is sleeved outside each threaded end, and each locking nut is matched with the corresponding screw rod through threads and abuts against the corresponding supporting beam.
2. The portable tire demounting device as recited in claim 1, further comprising a bearing assembly disposed between said locking nut and said support beam, said bearing assembly comprising a first washer, a pressure bearing and a second washer sequentially disposed on said threaded spindle.
3. The portable tire demounting device as recited in claim 1, wherein a sleeve is further sleeved outside the threaded end, and a connecting groove correspondingly matched with the lock nut is formed in an end surface of the sleeve facing one end of the lock nut.
4. The portable tire demounting device as recited in claim 3, wherein the locking nut is a hexagonal nut and the coupling slot is hexagonal in cross-section.
5. A portable tyre changing apparatus as claimed in claim 3, wherein the other end of the sleeve is provided with a coupling portion for coupling with a wrench.
6. The portable tire removing device as claimed in claim 1, wherein a threaded hole capable of being correspondingly engaged with a tire bolt is formed on an end surface of the fixed end of the screw rod.
7. The portable tire demounting device as recited in claim 1, wherein the bearing portion is in the shape of a circular arc.
8. The portable tire demounting device as claimed in claim 1, wherein the support beam includes a connecting section and mounting sections respectively provided at both ends of the connecting section, and two through holes are respectively provided in the two mounting sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401169.2U CN210970538U (en) | 2019-08-27 | 2019-08-27 | Portable tire dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401169.2U CN210970538U (en) | 2019-08-27 | 2019-08-27 | Portable tire dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210970538U true CN210970538U (en) | 2020-07-10 |
Family
ID=71415275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921401169.2U Active CN210970538U (en) | 2019-08-27 | 2019-08-27 | Portable tire dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210970538U (en) |
-
2019
- 2019-08-27 CN CN201921401169.2U patent/CN210970538U/en active Active
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