Power assembly test bench for new energy automobile

Abstract

The utility model particularly relates to a power assembly test bench for a new energy automobile, which comprises a base, the base is formed by splicing a left block and a right block, two parallel bosses are arranged on the base in a bilateral symmetry manner, a ball screw is arranged in the middle between the two bosses, chutes are formed in the bosses, and the ball screw is arranged in the middle between the two bosses. The ball screw is provided with a nut seat, the nut seat is provided with a dynamometer mounting plate, the dynamometer mounting plate is provided with first kidney-shaped grooves corresponding to the sliding grooves, and each first kidney-shaped groove is internally provided with a plurality of first bolts which are arranged in the sliding grooves. The dynamometer mounting plate is in sliding connection with the sliding groove; and a product testing support is arranged between the two bases. According to the power assembly test bench for the new energy automobile, the installation convenience of the dynamometer and the tested power assembly is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of powertrain testing devices for new energy vehicles, specifically a powertrain testing bench for new energy vehicles. Background Technology

[0002] A new energy vehicle powertrain refers to a vehicle's power system that uses an electric motor as the primary power source. It mainly includes the electric motor, battery pack, electronic control system, and transmission mechanism. Unlike traditional gasoline vehicles, new energy vehicles utilize technologies such as electrical energy storage, conversion, and transmission to achieve vehicle power output. The electric motor converts electrical energy into mechanical energy to propel the vehicle forward; the battery pack stores electrical energy to provide the necessary power to the electric motor; the electronic control system controls the battery's discharge and charging processes, as well as the electric motor's start-stop, steering, and speed; and the transmission mechanism converts the electric motor's speed and torque into the vehicle's power output.

[0003] To ensure that the performance of the powertrain of new energy vehicles meets the requirements, the powertrain needs to be tested so that it can be optimized and repaired in a timely manner to improve the safety of the powertrain. During the powertrain test, it is often necessary to adjust the relative position of the powertrain and the dynamometers at both ends. The existing test bench is not very convenient to adjust the position, and one test bench cannot be used for powertrains of various specifications and test benches. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a powertrain test bench for new energy vehicles. By setting a ball screw structure under the dynamometer mounting plate, the dynamometer can be easily adjusted in position, and the product test support can also be finely adjusted in position. This improves the ease of installation of the dynamometer and the powertrain under test, and solves the technical problem that the test bench in the prior art is not easy to adjust in position.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a powertrain test bench for new energy vehicles, comprising a base, which is composed of two pieces joined together. Two parallel bosses are symmetrically arranged on the base, and a ball screw is installed at the center between the two bosses. A groove is machined on each boss, and a nut seat is installed on the ball screw. A dynamometer mounting plate is installed on the nut seat. The dynamometer mounting plate has a first waist-shaped groove corresponding to the groove. Several first bolts are installed into each first waist-shaped groove to slide the dynamometer mounting plate and the groove. A product test support is installed between the two base pieces.

[0008] Furthermore, the base and the corresponding boss are integrally cast from cast iron, and the two base pieces are connected together by bolts and nuts installed in the opening of the mounting groove.

[0009] Furthermore, three sets of foot mounting grooves are symmetrically arranged on both sides of the bottom of the left and right bases, and foot supports are installed in the three sets of foot mounting grooves to place the bases on the ground.

[0010] Furthermore, the outer side of the boss is flush with the outer side of the dynamometer mounting plate, and several baffles are symmetrically installed on the two outer sides of the boss.

[0011] Furthermore, an operating turntable is installed at the outer end of the ball screw.

[0012] Furthermore, the product test support includes six support legs mounted on a base, and a test piece mounting plate is mounted on the six support legs. The test piece mounting plate has a second waist-shaped groove corresponding to the position of the six support legs. A second bolt passing through the second waist-shaped groove is installed at the upper end of the six support legs, so that the test piece mounting plate is slidably connected to the six support legs.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a powertrain test bench for new energy vehicles, which has the following advantages:

[0015] 1. This powertrain test bench for new energy vehicles features a ball screw structure installed under the dynamometer mounting plate, which facilitates easy position adjustment of the dynamometer and allows for fine-tuning of the product test support, thereby improving the ease of installation of the dynamometer and the powertrain under test.

[0016] 2. Since the distance and position of the dynamometer and the powertrain under test can be easily adjusted in a horizontal position, this powertrain test bench for new energy vehicles can be used for testing dynamometers and powertrains of different sizes. Attached Figure Description

[0017] Figure 1 This is a perspective view of a powertrain test bench for new energy vehicles according to the present invention.

[0018] Figure 2 for Figure 1 A three-dimensional view of the dynamometer mounting plate and the workpiece mounting plate removed;

[0019] In the diagram: 1. Base; 101. Mounting groove; 102. Bolt and nut; 103. Foot mounting groove; 104. Foot support; 2. Boss; 3. Ball screw; 4. Slide groove; 5. Nut seat; 6. Dynamometer mounting plate; 7. First slot; 8. First bolt; 9. Product test support; 901. Support leg; 902. Test piece mounting plate; 903. Second slot; 904. Second bolt; 10. Baffle; 11. Operating turntable. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-2A powertrain test bench for new energy vehicles includes a base 1, which is composed of two pieces joined together. The base 1 and the corresponding bosses 2 are integrally cast from cast iron. The two base pieces 1 are connected together by bolts and nuts 102 installed in the mounting slots 101. Three sets of foot mounting slots 103 are symmetrically arranged on both sides of the bottom of the two base pieces 1. Foot supports 104 are installed in the three sets of foot mounting slots 103 to place the base 1 on the ground. Two parallel bosses 2 are symmetrically arranged on the base 1, and a ball screw 3 is installed in the center between the two bosses 2. An operating turntable 11 is installed on the outer end of the lead screw 3. A slide groove 4 is machined on the boss 2. A nut seat 5 is installed on the ball screw 3. A dynamometer mounting plate 6 is installed on the nut seat 5. A first waist-shaped groove 7 corresponding to the slide groove 4 is opened on the dynamometer mounting plate 6. Several first bolts 8 are installed in each first waist-shaped groove 7 to slide into the slide groove 4, so that the dynamometer mounting plate 6 and the slide groove 4 are slidably connected. A product test support 9 is installed between the two bases 1. The outer side of the boss 2 is flush with the outer side of the dynamometer mounting plate 6. Several baffles 10 are symmetrically installed on the two outer sides of the boss 2.

[0022] In the above embodiment, the product test support 9 includes six support legs 901 mounted on the base 1. A test component mounting plate 902 is mounted on the six support legs 901. The test component mounting plate 902 has a second waist-shaped groove 903 corresponding to the position of the six support legs 901. A second bolt 904 passing through the second waist-shaped groove 903 is mounted on the upper end of the six support legs 901, so that the test component mounting plate 902 is slidably connected to the six support legs 901.

[0023] The working principle of the above embodiments is as follows:

[0024] In use, first, install the two dynamometers on the left and right dynamometer mounting plates 6 respectively. Rotating the operating turntables 11 on both sides drives the corresponding ball screws 3 to rotate, which in turn moves the nut seats 5 linearly. This moves the corresponding dynamometer mounting plates 6 and the dynamometers mounted on them towards the rear of the test component mounting plate 902, creating sufficient space. Next, the powertrain to be tested is installed on the test component mounting plate 902. The mounting plate 902 can be finely adjusted in position by moving the second bolt 904 in the second slot 903. Then, rotating the operating turntables 11 on both sides drives the corresponding ball screws 3 to rotate, moving the corresponding dynamometer mounting plates 6 and the dynamometers mounted on them towards the test component mounting plate 902 of the powertrain to the appropriate position. After connecting and locking the left and right dynamometers and the powertrain, various performance tests can be performed. By testing core components such as batteries, motors, and electronic controls, potential safety hazards can be identified in a timely manner, preventing traffic accidents caused by vehicle malfunctions and ensuring that the vehicle's performance indicators meet design requirements. This powertrain test bench for new energy vehicles features a ball screw 3 structure installed under the dynamometer mounting plate 6, which facilitates easy position adjustment of the dynamometer and allows for fine-tuning of the product test support 9, thus improving the ease of installation of the dynamometer and the powertrain under test.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power assembly test bench for new energy vehicles, comprising a base (1), characterized in that: The base (1) has left and right two splices, two parallel bosses (2) are symmetrically arranged on the base (1), a ball screw (3) is installed and arranged at the middle of the two bosses (2), a sliding groove (4) is arranged on the boss (2), a nut seat (5) is installed on the ball screw (3), a dynamometer mounting plate (6) is installed on the nut seat (5), a first waist-shaped groove (7) corresponding to the sliding groove (4) is formed in the dynamometer mounting plate (6), a plurality of first bolts (8) are installed in each first waist-shaped groove (7) to slide the sliding groove (4), and the dynamometer mounting plate (6) and the sliding groove (4) are slidably connected; the product test support (9) is installed between the two bases (1). 2.The powertrain test bench for new energy vehicles of claim 1, wherein: The base (1) and the corresponding boss (2) are integrally cast by cast iron, and the two bases (1) are connected together by the bolts and nuts (102) installed in the mounting groove (101) between the two bases (1). 3.The powertrain test bench for new energy vehicles of claim 2, wherein: The bottom of the left and right two bases (1) is symmetrically provided with three groups of foot mounting grooves (103), and the foot supports (104) are arranged in the three groups of foot mounting grooves (103) to place the base (1) on the ground.

4. The power assembly test bench for new energy vehicles according to claim 1, characterized in that: The outer side of the boss (2) and the outer side of the dynamometer mounting plate (6) are flush, and a plurality of baffles (10) are symmetrically installed on the two outer sides of the boss (2). 5.The powertrain test bench for new energy vehicles of claim 1, wherein: The outer end of the ball screw (3) is provided with an operation turntable (11). 6.The powertrain test bench for new energy vehicles of claim 1, wherein: The product test support (9) includes six support legs (901) installed on the base (1), a measured piece mounting plate (902) is installed on the six support legs (901), a second waist-shaped groove (903) corresponding to the positions of the six support legs (901) is formed in the measured piece mounting plate (902), and a second bolt (904) penetrating through the second waist-shaped groove (903) is installed on the upper end of the six support legs (901), so that the measured piece mounting plate (902) and the six support legs (901) are slidably connected.

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