CN216012555U

CN216012555U - Improved chassis dynamometer

Info

Publication number: CN216012555U
Application number: CN202122311979.2U
Authority: CN
Inventors: 叶治洲; 叶志高; 董子策; 李航; 叶天仕
Original assignee: Danzhou Jingrui Motor Vehicle Testing Co ltd
Current assignee: Danzhou Jingrui Motor Vehicle Testing Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-11
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses an improved chassis dynamometer, which comprises a frame and an outer cover arranged at the side end of the frame, wherein a roller can rotate a gear A when rotating, the gear A is meshed with a gear B to be connected, namely, the gear A can drive the gear B to rotate, the outer end of a protective cover is connected with the gear B, so that the angle of the protective cover can be changed, the protective cover is gradually lifted to be convenient for protecting the two ends of a wheel, two groups of protective mechanisms are arranged and symmetrically arranged about the longitudinal central line of a screw rod, threads on the outer surface of the screw rod are symmetrically arranged about the longitudinal central line of the screw rod, the screw rod is externally connected with the output end of a motor, two groups of motors work simultaneously to enable a slide block to approach along the two ends of the screw rod until the protective cover approaches the wheel gradually, in the process of one end of the protective cover, one end of the gear B moves along a straight groove and is far away from the gear A, namely, the protective cover automatically stops after the angle moves to a certain degree, the use effect is good.

Description

Improved chassis dynamometer

Technical Field

The utility model relates to an automobile test equipment technical field specifically is an improvement type chassis dynamometer.

Background

The chassis dynamometer is an indoor bench test device for testing performances such as automobile dynamic property, multi-working condition emission indexes, fuel indexes and the like. The automobile chassis dynamometer simulates a road surface through a roller, calculates a road simulation equation, and simulates each working condition of an automobile by using a loading device.

When the existing chassis dynamometer is used, a protection mechanism is not usually arranged, so that the two ends of the wheel easily slide out of the two sides of the roller, and the use effect is poor.

To the problem, the utility model provides an improvement type chassis dynamometer machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improvement type chassis dynamometer possesses and is convenient for protect the both ends of car, and stability is stronger, excellent in use effect's advantage to the problem in the background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: an improved chassis dynamometer comprises a rack and an outer cover installed at the side end of the rack, wherein grooves are formed in the upper surface of the rack, a roller is movably installed inside each groove, two protection mechanisms are movably installed on two sides of the rack, two groups of grooves are formed, a driving mechanism is arranged in the middle of each two groups of grooves, and a heat dissipation part is installed on the upper surface of the rack;

the driving mechanism comprises a sliding groove and a screw rod arranged inside the sliding groove, and the screw rod is externally connected with the output end of a motor.

Preferably, the inner wall of the outer cover is processed with a straight groove, one side of the straight groove is provided with a bent groove, one side of the roller penetrates through the outer cover to be connected with the gear A, and one end of the gear A is meshed with the gear B.

Preferably, the rack comprises a mounting rack and an elastic part arranged at the lower end of the mounting rack, a bottom plate is fixedly arranged at the lower end of the elastic part, and the roller is arranged at the upper end of the mounting rack.

Preferably, the belt assembly is installed to cylinder one end, and the connecting axle is installed to the other end, and the cylinder is provided with two sets ofly, and two sets of the cylinder pass through the belt assembly and connect, and the one end of cylinder passes through connecting axle and gear A fixed connection.

Preferably, the protection mechanism comprises a sliding block matched with the sliding groove and a supporting rod fixedly installed at the upper end of the sliding block, a threaded hole is formed in the sliding block, and the sliding block is in through connection with the screw rod through the threaded hole.

Preferably, the protection mechanism further comprises a connecting rod arranged at one end of the supporting rod, the two ends of the connecting rod are respectively provided with a protection cover, the protection covers are of arc-shaped structures and are arranged at the two ends of the roller, and the outer ends of the protection covers are connected with the gear B.

Preferably, the protection mechanisms are arranged in two groups, the two groups of protection mechanisms are symmetrically installed about the longitudinal center line of the screw rod, and the threads on the outer surface of the screw rod are symmetrically installed about the longitudinal center line of the screw rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides an improvement type chassis dynamometer, during the test, the wheel of car removes to between two sets of gyro wheels, and the cylinder is provided with two sets ofly, and two sets of the cylinder pass through belt subassembly and connect, the external motor output of belt subassembly, open motor work, can make two sets of cylinders rotatory, can carry out the dynamometer to the chassis, the cylinder sets up the upper end at the mounting bracket, the elastic component is installed to the mounting bracket lower extreme, the lower extreme fixed mounting of elastic component has the bottom plate, because the gravity of car itself is heavier, when the car removes to the cylinder upper end, drive the downward displacement of mounting bracket, compress the elastic component gradually promptly, can play certain buffering effect to the car, and the compression range of elastic component is less, can recover very fast, do not influence its dynamometer work.

2. The utility model provides an improved chassis dynamometer, one end of a roller is fixedly connected with a gear A through a connecting shaft, the gear A can rotate when the roller rotates, the gear A is meshed with the gear B and is connected, namely, the gear A can drive the gear B to rotate, the outer end of a protective cover is connected with the gear B, the angle of the protective cover can be changed, the protective cover is gradually lifted, two groups of protective mechanisms are convenient to protect two ends of a wheel, the two groups of protective mechanisms are symmetrically arranged about the longitudinal central line of a screw rod, threads on the outer surface of the screw rod are symmetrically arranged about the longitudinal central line of the screw rod, the screw rod is externally connected with the output end of a motor, two groups of motors work simultaneously, a slide block is close to two ends of the screw rod until the protective cover is gradually close to the wheel, and in the process of one end of the protective cover, one end of the gear B moves along a straight groove and is far away from the gear A, the protective cover can automatically stop after moving to a certain degree, and the using effect is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the outer cover of the present invention;

FIG. 3 is an overall side view of the present invention;

fig. 4 is a schematic structural diagram of the protection mechanism of the present invention.

In the figure: 1. a frame; 11. a mounting frame; 12. an elastic member; 13. a base plate; 2. a housing; 21. a straight groove; 22. bending a groove; 23. a gear A; 24. a gear B; 3. a groove; 4. a drum; 41. a belt assembly; 42. a connecting shaft; 5. a protection mechanism; 51. a slider; 52. a strut; 53. a threaded hole; 54. a connecting rod; 55. a protective cover; 6. a drive mechanism; 61. a chute; 62. a screw rod; 7. a heat sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, an improved chassis dynamometer includes a frame 1 and an outer cover 2 mounted at a side end of the frame 1, a groove 3 is formed in an upper surface of the frame 1, a roller 4 is movably mounted inside the groove 3, protection mechanisms 5 are movably mounted at two sides of the frame 1, two groups of grooves 3 are provided, a driving mechanism 6 is disposed in a middle portion of each of the two groups of grooves 3, and a heat dissipation member 7 is mounted on an upper surface of the frame 1.

Referring to fig. 2, a straight groove 21 is formed in the inner wall of the outer cover 2, a curved groove 22 is formed in one side of the straight groove 21, one side of the roller 4 penetrates through the outer cover 2 and is connected with a gear a23, a gear B24 is engaged with one end of the gear a23, the gear a23 can rotate when the roller 4 rotates, the gear a23 is engaged with a gear B24, namely, the gear a23 can drive the gear B24 to rotate, the outer end of the protective cover 55 is connected with the gear B24, so that the angle of the protective cover 55 can be changed, the protective cover 55 is gradually lifted, and the two ends of the wheel can be protected conveniently.

Please refer to fig. 3, the frame 1 includes an installation frame 11 and an elastic member 12 disposed at the lower end of the installation frame 11, a bottom plate 13 is fixedly disposed at the lower end of the elastic member 12, the roller 4 is disposed at the upper end of the installation frame 11, and since the gravity of the automobile itself is heavy, when the automobile moves to the upper end of the roller 4, the installation frame 11 is driven to move downwards, i.e., the elastic member 12 is gradually compressed, so that a certain buffering effect can be achieved on the automobile, and the compression range of the elastic member 12 is small, so that the elastic member can be quickly restored without affecting the work of the dynamometer.

Referring to fig. 2 and 3, a belt assembly 41 is installed at one end of the roller 4, a connecting shaft 42 is installed at the other end of the roller 4, two groups of rollers 4 are arranged, the two groups of rollers 4 are connected through the belt assembly 41, the motor is started to work, the two groups of rollers 4 can rotate, and the power measurement can be performed on the chassis.

Referring to fig. 2 and 4, the driving mechanism 6 includes a sliding slot 61 and a screw rod 62 installed inside the sliding slot 61, the protection mechanism 5 includes a sliding block 51 matched with the sliding slot 61 and a supporting rod 52 fixedly installed on the upper end of the sliding block 51, a threaded hole 53 is processed inside the sliding block 51, the sliding block 51 is connected with the screw rod 62 through the threaded hole 53, the protection mechanism 5 further includes a connecting rod 54 installed on one end of the supporting rod 52, two ends of the connecting rod 54 are both installed with a protective cover 55, the protective covers 55 are arc-shaped and installed on two ends of the roller 4, the outer end of the protective cover 55 is connected with a gear B24, the protection mechanism 5 is provided with two sets, and the two sets of the protection mechanisms 5 are installed symmetrically with respect to the longitudinal central line of the screw rod 62, the thread on the outer surface of the screw rod 62 is installed symmetrically with respect to the longitudinal central line of the screw rod 62, the screw rod 62 is externally connected with the output end of the motor, the two sets of the motors work simultaneously, so that the sliding block 51 is close to the two ends of the screw rod 62, until the protective cover 55 gradually approaches to the wheel, and in the process of one end of the protective cover 55, one end of the gear B24 moves along the straight groove 21 and is far away from the gear A23, namely, the protective cover 55 automatically stops after moving to a certain degree, and the using effect is good.

The working principle is as follows: during testing, the wheels of the automobile move between the two groups of rollers, the rollers 4 are arranged in two groups, the rollers 4 are connected through the belt assembly 41, the belt assembly 41 is externally connected with a motor output end, the motor is started to work, the two groups of rollers 4 can rotate, the chassis can be tested, the rollers 4 are arranged at the upper end of the mounting frame 11, the elastic part 12 is arranged at the lower end of the mounting frame 11, the bottom plate 13 is fixedly arranged at the lower end of the elastic part 12, due to the fact that the gravity of the automobile is heavy, when the automobile moves to the upper end of the rollers 4, the mounting frame 11 is driven to move downwards, namely the elastic part 12 is gradually compressed, a certain buffering effect can be achieved on the automobile, the compression range of the elastic part 12 is small, the elastic part can be quickly restored, the work of the power testing is not influenced, one end of the rollers 4 is fixedly connected with the gear A23 through the connecting shaft 42, the gear A23 can rotate when the rollers 4 rotate, the gear A23 is meshed with the gear B24, that is, gear A23 can drive gear B24 and rotate, and the outer end of protection casing 55 is connected with gear B24, can make the angle of protection casing 55 change, and protection casing 55 lifts up gradually, is convenient for protect the both ends of wheel, and protection mechanism 5 is provided with two sets ofly, and two sets ofly protection mechanism 5 install about the longitudinal center line symmetry of lead screw 62, and the screw of lead screw 62 surface is installed about the longitudinal center line symmetry of lead screw 62, and the external motor output of lead screw 62, two sets of motors work simultaneously for slider 51 is close to along the lead screw 62 both ends, and is close to the wheel gradually until protection casing 55, and at protection casing 55 one end in-process, the one end of gear B24 is along the activity of straight flute 21 to keep away from gear A23, protection casing 55 angular motion is automatic stop after reaching certain degree promptly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an improvement type chassis dynamometer, includes frame (1) and installs dustcoat (2) at frame (1) side, its characterized in that: the upper surface of the rack (1) is provided with grooves (3), a roller (4) is movably mounted in each groove (3), two sides of the rack (1) are movably provided with protective mechanisms (5), two groups of grooves (3) are arranged, the middle parts of the two groups of grooves (3) are provided with driving mechanisms (6), and the upper surface of the rack (1) is provided with heat dissipation parts (7);

the driving mechanism (6) comprises a sliding groove (61) and a screw rod (62) installed inside the sliding groove (61), and the screw rod (62) is externally connected with the output end of the motor.

2. An improved chassis dynamometer according to claim 1 and further comprising: the inner wall of the outer cover (2) is processed with a straight groove (21), one side of the straight groove (21) is provided with a bent groove (22), one side of the roller (4) penetrates through the outer cover (2) to be connected with a gear A (23), and one end of the gear A (23) is meshed with a gear B (24).

3. An improved chassis dynamometer according to claim 1 and further comprising: the rack (1) comprises an installation rack (11) and an elastic piece (12) arranged at the lower end of the installation rack (11), a bottom plate (13) is fixedly arranged at the lower end of the elastic piece (12), and the roller (4) is arranged at the upper end of the installation rack (11).

4. An improved chassis dynamometer according to claim 1 and further comprising: belt subassembly (41) is installed to cylinder (4) one end, and connecting axle (42) are installed to the other end, and cylinder (4) are provided with two sets ofly, and two sets of cylinder (4) connect through belt subassembly (41), the one end of cylinder (4) is passed through connecting axle (42) and gear A (23) fixed connection.

5. An improved chassis dynamometer according to claim 1 and further comprising: protection machanism (5) including with spout (61) assorted slider (51) and fixed mounting in branch (52) of slider (51) upper end, the inside processing of slider (51) has screw hole (53), slider (51) are through connection through screw hole (53) and lead screw (62).

6. An improved chassis dynamometer according to claim 5 and further comprising: protection machanism (5) are still including setting up connecting rod (54) in branch (52) one end, and protection casing (55) are all installed at the both ends of connecting rod (54), and protection casing (55) are the arc structure, and set up the both ends in cylinder (4), and the outer end and the gear B (24) of protection casing (55) are connected.

7. An improved chassis dynamometer according to claim 1 and further comprising: the protection mechanisms (5) are arranged in two groups, the protection mechanisms (5) are symmetrically installed about the longitudinal center line of the screw rod (62), and the threads on the outer surface of the screw rod (62) are symmetrically installed about the longitudinal center line of the screw rod (62).