CN219624943U - Automobile tire fixing device of front axle steering chassis dynamometer - Google Patents

Abstract

The utility model discloses an automobile tire fixing device of a front axle steering chassis dynamometer, which comprises a connecting base, a turntable and a bearing, wherein a sliding rail is arranged on the base, the sliding rail is connected with a sliding block in a sliding manner, the bearing comprises a bearing outer ring and a bearing inner ring which is rotationally connected with the bearing outer ring, the sliding block is fixedly connected with the bearing outer ring, the turntable is fixedly connected with the bearing inner ring, the turntable is connected with a plurality of connecting bolt groups, each connecting bolt group comprises a thread bush and a screw rod which is connected with the thread bush, and the thread bush is fixedly connected with the turntable. The utility model can connect and fix the high-speed rotating automobile tire and the front axle of the dynamometer, so that the floating front axle rotating hub and the automobile tire are connected into a whole in the horizontal plane, namely the normal rotation of the tire is not influenced to simulate the running state of the vehicle, the automobile tire can be more closely brought to the dynamometer rotating hub to carry out synchronous steering test, and the safety risks of various potential detachment of the automobile tire and the dynamometer front axle rotating hub are eliminated.

Description

Automobile tire fixing device of front axle steering chassis dynamometer

Technical Field

The utility model relates to an automobile tire fixing device, in particular to an automobile tire fixing device of a front axle steering chassis dynamometer.

Background

The front axle tire and the rear axle tire of the automobile are placed on four rotating hubs of a chassis dynamometer to rotate, so that the running condition of the automobile on a road can be simulated, and the automobile performance such as power performance, fuel economy, electric vehicle driving mileage and the like can be detected.

In the prior art, when a chassis dynamometer tests an automobile, the chassis dynamometer and the automobile are fixed by only adopting a mode of flexibly connecting a chain with a towing hook of the automobile, so that the fixing requirement of the automobile can be met; however, when the front axle of the dynamometer is provided with a steering function, the traditional fixing mode is insufficient to completely eliminate the potential new vehicle runaway safety risk. The front axle rotating hub of the chassis dynamometer with the front axle steering function is in a floating state and can steer along with the front wheels of the automobile. Because of the internal inclination angle of the front wheel of the automobile, the front wheel tire rotating at high speed can drive the front axle rotating hub of the dynamometer along the axial direction of the front axle tire during testing, so that the front axle rotating hub of the floating chassis dynamometer can move along the axial force until the rotating hub is contacted with other fixing mechanisms on the equipment and blocked from continuing to move axially, at the moment, the front axle rotating hub of the dynamometer can lose the free floating function, thereby the function of the dynamometer is invalid, and at the moment, the high-speed rotating automobile tire and the front axle rotating hub of the dynamometer have the safety risks of separation and the like.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an automobile tire fixing device of a front axle steering chassis dynamometer, which aims to eliminate the risk of failure of a front axle floating function of the dynamometer caused by driving force of a front axle steering hub of the dynamometer by rotation of tires, eliminate the safety risk of separation of the automobile tires from the front axle steering hub of the dynamometer caused by the risk, and eliminate the risk of separation of the tires from the steering hub caused by the fact that the steering hub and the tires cannot synchronously steer during a rapid steering test. Meanwhile, the device can be used for fixing the vehicle on the traditional chassis dynamometer, and the defects that the traditional chain is poor in fixing effect in a towing hook flexible connection mode of the vehicle, and vehicle movement and deviation are easy to cause are overcome.

Specifically, the method comprises the following technical scheme:

the utility model provides an automobile tire fixing device of a front axle steering chassis dynamometer, which comprises a connecting base, a turntable and a bearing, wherein a sliding rail is arranged on the base, the sliding rail is connected with a sliding block in a sliding manner, the bearing comprises a bearing outer ring and a bearing inner ring which is rotationally connected with the bearing outer ring, the sliding block is fixedly connected with the bearing outer ring, the turntable is fixedly connected with the bearing inner ring, the turntable is connected with a plurality of connecting bolt groups, the connecting bolt groups comprise a thread bush and a screw rod which is connected with the thread bush, and the thread bush is fixedly connected with the turntable.

In one embodiment of the utility model, the connecting base is connected with the sliding rail through bolts, a plurality of threaded holes are formed in the connecting base, and strip holes are formed in the bottom surface of the sliding rail.

In one embodiment of the utility model, the sliding rail is provided with a vertically arranged sliding groove, and the sliding block is embedded in the sliding groove.

In one embodiment of the utility model, the cross section of the chute is T-shaped.

In one embodiment of the utility model, one end of the sliding block is of a disc-shaped structure and is fixedly connected with the bearing outer ring, the other end of the sliding block is of a T-shaped block and is embedded in the sliding groove, and the sliding block is inserted into the T-shaped sliding groove of the sliding track through the T-shaped block.

In one embodiment of the utility model, the threaded sleeve comprises a first internal thread, a plurality of bolt holes are formed in the turntable, bolts are arranged in the bolt holes, the bolts penetrate through the bolt holes in the turntable to be in threaded connection with the first internal thread, and the threaded sleeve is fixedly connected to the turntable through the bolts.

In one embodiment of the present utility model, the threaded sleeve further includes a second internal thread, and the screw is disposed in and connected to the second internal thread.

In one embodiment of the utility model, the second internal thread is located on a side of the first internal thread remote from the turntable.

In one embodiment of the utility model, the first internal thread is coaxial with the second internal thread.

In one embodiment of the utility model, the turntable is connected to the vehicle tire by means of a set of connecting bolts.

Advantageous effects

According to the automobile tire fixing device, the original fixing bolts of the automobile tire are replaced through the connecting bolt groups capable of rotating and moving up and down, so that the effect of fixing the tire by the original bolts is kept, the automobile tire fixing device can adapt to tire fixing threaded holes of different specifications and types, automobiles with different tread widths and automobile tire center heights of different diameters, the automobile tire rotating at high speed can be connected and fixed with the front axle of the dynamometer, the floating front axle rotating hub and the automobile tire are connected into a whole in the horizontal plane, namely the normal rotation of the tire is not influenced, the automobile tire can be more closely brought to the dynamometer rotating hub to carry out synchronous steering test, and the safety risks of detachment of various potential automobile tires and the dynamometer front axle rotating hub are eliminated. And the device is used on a traditional chassis dynamometer to fix the vehicle, so that the defects of poor fixing effect, easy vehicle running, deviation and the like of a traditional chain and a towing hook soft connection mode of the vehicle can be overcome.

Drawings

Fig. 1 is a perspective view of one of the viewing angles of the tire securing device for an automobile of the present utility model.

Fig. 2 is a perspective view of yet another view of the tire securing apparatus for an automobile of the present utility model.

Fig. 3 is a cross-sectional view of the tire fixing device for an automobile according to the present utility model.

Fig. 4 is a cross-sectional view of a threaded sleeve of the present utility model.

In the figure: 1. the base is connected; 2. a sliding rail; 3. a slide block; 4. a turntable; 5. a set of connecting bolts; 6. a bearing; 7. a bolt; 8. a thread sleeve; 81. a first internal thread; 82. a second internal thread; 9. and (3) a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

1-4, the utility model provides an automobile tire fixing device of a front axle steering chassis dynamometer, which comprises a connecting base 1, a turntable 4 and a bearing 6, wherein the connecting base 1 is fixedly arranged on a front axle rotating hub frame of the chassis dynamometer; install slip track 2 on the base 1, slip track 2 sliding connection has slider 3, bearing 6 include the bearing outer lane and with its bearing inner race that rotates to be connected, slider 3 with bearing outer lane fixed connection, carousel 4 with bearing inner race fixed connection, carousel 4 is connected with a plurality of connecting bolt group 5, connecting bolt group 5 includes thread bush 8 and the screw rod 9 of being connected therewith, thread bush 8 and carousel 4 fixed connection.

Optionally, connect base 1 and slip track 2 through bolted connection, a plurality of screw hole has been seted up on connecting base 1, rectangular hole has been seted up to the bottom surface of slip track 2, adjusts overall structure to automobile tire's distance through installing different screw hole sites on connecting base 1 to adapt to the car of different track width.

Optionally, the sliding rail 2 is provided with a vertically arranged chute, the sliding block 3 is embedded in the chute, and the sliding block 3 can slide up and down in the chute. The sliding block 3 drives the bearing 6, the turntable 4 and the connecting bolt group 5 to move up and down along the sliding groove integrally so as to adapt to the central heights of the vehicle tires with different diameters.

Optionally, the cross section of the chute is T-shaped.

Optionally, one end of the sliding block 3 is of a disc-shaped structure and is fixedly connected with the bearing outer ring, the other end of the sliding block 3 is of a T-shaped block and is embedded in the sliding groove, and the sliding block 3 is inserted into the T-shaped sliding groove of the sliding track 2 through the T-shaped block, so that the sliding block 3 can be embedded in the sliding groove without being separated from the sliding groove. The sliding block 3 can not rotate and can only slide up and down along the T-shaped sliding groove of the sliding rail 2.

Optionally, the threaded sleeve 8 includes a first internal thread 81, a plurality of bolt holes are formed in the turntable 4, bolts 7 are arranged in the bolt holes, the bolts 7 penetrate through the bolt holes in the turntable 4 to be in threaded connection with the first internal thread 81, and the threaded sleeve 8 is fixedly connected to the turntable 4 through the bolts 7.

Optionally, the thread sleeve 8 further includes a second internal thread 82, and the screw 9 is disposed in the second internal thread 82 and is connected to the second internal thread 82.

Optionally, the second internal thread 82 is located on a side of the first internal thread 81 away from the turntable 4, and the first internal thread 81 is coaxial with the second internal thread 82.

Optionally, the turntable 4 is connected with the automobile tire through the connecting bolt group 5, and the turntable 4 can rotate relative to the sliding block 3 and the bearing outer ring due to the fixed connection of the turntable 4 and the bearing inner ring; the turntable 4 can rotate along with the automobile tire, and simultaneously the distribution condition of the tire bolts with different specifications can be adapted by changing the positions of different bolt holes of the connecting bolt group 5 installed on the turntable 4 or replacing the turntable 4 with different diameters.

The connecting bolt group 5 is used for replacing original fixing bolts of automobile tires, namely, the function of fixing the tires by the original bolts is reserved, the rotary table 4 is fixedly connected with first internal threads 81 of a threaded sleeve 8 of the connecting bolt group 5 through bolts 7, and tire fixing threaded holes of different types are adapted through the length and the thread specification of the replacement screw 9.

The working principle of the utility model is as follows: the connecting base 1 and the sliding rail 2 are assembled in advance and connected for standby, and the sliding block 3 and the rotary table 4 are assembled in advance and connected for standby. When in testing, firstly, the vehicle is stopped on the chassis dynamometer, then the original fixing bolts of the front axle tire are replaced by the connecting bolt group 5, then the turntable 4 and the connecting bolt group 5 are fixed, and then the sliding block 3 is inserted into the sliding groove of the sliding track 2 to connect and fix the connecting base 1 and the sliding track 2 on the front axle rotating hub frame of the dynamometer. If the distance from the whole mechanism to the tire needs to be adjusted, the adjustment is performed by changing the connecting hole position for connecting the base 1 and the sliding rail 2. The front axle rotating hub mechanism of the dynamometer is connected and fixed with the automobile tire according to the process, so that the front axle rotating hub mechanism of the dynamometer is connected with the automobile tire into a whole, the high-speed rotation of the tire is not affected when the automobile normally runs, the influence on the driving force of the rotating hub when the tire rotates is eliminated, meanwhile, the synchronous steering of the front axle rotating hub mechanism of the dynamometer and the automobile tire can be realized through the device, the reliability of the equipment function is ensured, and the safety of the testing process is enhanced.

The scope of the present utility model is not limited to the above-described embodiments, but is intended to be limited to the appended claims, any modifications, equivalents, improvements and alternatives falling within the spirit and principle of the inventive concept, which can be made by those skilled in the art.

Claims (10)

1. The utility model provides a front axle turns to car tire fixing device of chassis dynamometer, its characterized in that, including connecting base, carousel and bearing, install the slip track on the base, slip track sliding connection has the slider, the bearing includes the bearing outer lane and rotates the bearing inner circle of being connected rather than, the slider with bearing outer lane fixed connection, the carousel with bearing inner circle fixed connection, the carousel is connected with a plurality of connecting bolt group, the connecting bolt group includes the thread bush and the screw rod of being connected rather than, thread bush and carousel fixed connection.

2. The automobile tire fixing device of the front axle steering chassis dynamometer of claim 1, wherein the connecting base is connected with the sliding rail through bolts, a plurality of threaded holes are formed in the connecting base, and strip holes are formed in the bottom surface of the sliding rail.

3. The automobile tire fixing device of the front axle steering chassis dynamometer of claim 1, wherein the sliding rail is provided with a vertically arranged sliding groove, and the sliding block is embedded in the sliding groove.

4. A tyre-securing device for a motor vehicle of a front axle steering chassis dynamometer according to claim 3, characterized in that said runner is T-shaped in cross section.

5. The automobile tire fixing device of the front axle steering chassis dynamometer of claim 4, wherein one end of the sliding block is of a disc-shaped structure and is fixedly connected with the bearing outer ring, the other end of the sliding block is of a T-shaped block and is embedded in the sliding groove, and the sliding block is inserted into the T-shaped sliding groove of the sliding rail through the T-shaped block.

6. The automobile tire fixing device of the front axle steering chassis dynamometer according to claim 1, wherein the threaded sleeve comprises a first internal thread, a plurality of bolt holes are formed in the turntable, bolts are arranged in the bolt holes, the bolts penetrate through the bolt holes in the turntable to be in threaded connection with the first internal thread, and the threaded sleeve is fixedly connected to the turntable through the bolts.

7. The front axle steering chassis dynamometer of claim 6, wherein the threaded sleeve further comprises a second internal thread, the threaded rod being disposed within and coupled to the second internal thread.

8. The front axle steer chassis dynamometer of claim 7, wherein the second internal thread is located on a side of the first internal thread remote from the turntable.

9. The front axle steering chassis dynamometer of claim 7, wherein the first internal thread is coaxial with the second internal thread.

10. The apparatus for fixing a tire of a vehicle for a front axle steering chassis dynamometer of any one of claims 1 to 9, wherein the turntable is connected to the tire of the vehicle by a set of connecting bolts.