Electric limiter thrust performance test device

Abstract

The utility model discloses a kind of electric limiter thrust performance test devices, it is related to thrust test technical field, wherein, electric limiter thrust performance test device includes frame body, fixed part, guide part, load part and counterweight assembly.Fixed part is set on the frame body, to fix electric limiter;Guide part is set on the frame body and is located the circumferential side of the fixed part, the guide part is extended and set upwards;Load part is movably set on the guide part along up and down;Counterweight assembly includes multiple weights, at least one the weight is detachably installed on the load part.The technical scheme provided by the utility model aims at being able to measure thrust performance quickly to electric limiter, further shorten the development cycle of electric limiter.

Description

Technical Field

[0001] This utility model relates to the field of thrust testing technology, and in particular to a test device for the thrust performance of an electric limiter. Background Technology

[0002] An electric door limiter is a device that uses a motor to overcome the weight of the door and the resistance of the hinges, allowing the door to open, stop, or close according to predetermined control requirements. With the increasing popularity of mid-to-large SUVs and MPVs, doors are becoming larger and heavier, resulting in greater force when opening and closing them, and a poor experience when opening and closing them on slopes. The electric door limiter has significantly improved the user's door opening and closing experience.

[0003] The electric limiter mainly consists of a motor, a planetary gearbox (or worm gear) for speed reduction and torque amplification, a trapezoidal lead screw and nut slider, and a push rod. Through reasonable matching and calculation of relevant system performance parameters, the maximum push-out force, pull-out force, and stall force of the electric limiter can be obtained. The stall force can be tested and evaluated using a tensile testing machine. However, the current practice for testing the push-out and pull-out forces of the electric limiter involves evaluating the push-out and pull-out forces on different slopes after a real vehicle has been produced. However, due to numerous influencing factors, such as the different forces required for different door opening angles due to the door's tilt angle, the initial theoretical calculations cannot be verified, resulting in a long development cycle for the electric limiter. Utility Model Content

[0004] The main purpose of this invention is to propose a test device for the thrust performance of an electric limit switch, which aims to quickly measure the thrust performance of the electric limit switch and further shorten the development cycle of the electric limit switch.

[0005] To achieve the above objectives, this utility model proposes a test device for the thrust performance of an electric limiter, comprising:

[0006] Frame;

[0007] A fixing part is provided on the frame to fix the electric limiter;

[0008] A guide portion is disposed on the frame and located on the periphery of the fixing portion, and the guide portion extends upward.

[0009] The load-bearing part is movably disposed on the guide part in the vertical direction; and,

[0010] The counterweight assembly includes multiple weights, at least one of which is detachably mounted on the load-bearing part.

[0011] In one embodiment, the frame includes:

[0012] The lower support portion, wherein the fixing portion is disposed on the lower support portion;

[0013] An upper support portion is spaced apart from the lower support portion to form a test space between them, and a guide portion is erected in the test space.

[0014] In one embodiment, a plurality of guide portions are provided, and the plurality of guide portions surround the periphery of the frame.

[0015] In one embodiment, the lower end of the fixing part is disposed on the frame, the interior of the fixing part forms an installation space for accommodating the electric limiter, and the upper end of the fixing part is provided with an installation area for fixing the electric limiter.

[0016] In one embodiment, the fixing part includes a first bracket and a second bracket symmetrically arranged, the first bracket and the second bracket being detachably mounted on the frame so that the installation space formed by the gap between them is adjustable.

[0017] In one embodiment, the load-bearing part is provided with a through hole, and the guide part passes through the through hole so that the load-bearing part can slide along the guide part.

[0018] In one embodiment, a limiting part is provided on the load-bearing part, and at least one of the weights is detachably installed on the limiting part.

[0019] In one embodiment, the limiting part includes a limiting rod, and each of the weights is provided with a limiting hole, through which the weights are limited to the limiting rod.

[0020] In one embodiment, the limiting rod has an external thread on its outer side, a locking part on the limiting rod, an internal thread on the locking part, and the limiting rod is threadedly connected to the locking part.

[0021] In one embodiment, the configuration component further includes a spacer portion disposed between two adjacent weights.

[0022] The technical solution of this utility model securely fixes the electric limit switch through a fixing part, preventing positional changes during testing and ensuring the stability and consistency of the testing environment, thereby improving the accuracy of the test results. The guide part provides precise guidance for the movement of the load-bearing part, reducing deviations and swaying during its movement, making the testing process more controllable and further enhancing the reliability of the test results. The detachable design of the weights in the counterweight assembly allows for flexible adjustment of the load-bearing part's weight according to the performance characteristics and testing requirements of different electric limit switches. This means that the testing device can adapt to the testing of various types and specifications of electric limit switches, possessing strong versatility and flexibility. It can simulate different actual working load scenarios, comprehensively testing the thrust performance of the electric limit switch under various conditions, thus providing richer and more accurate data support for the design, optimization, and quality evaluation of electric limit switches. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A schematic diagram of an embodiment of the electric limiter thrust performance testing device provided by this utility model;

[0025] Figure 2 for Figure 1 Front view of the test device for the thrust performance of the electric limit switch.

[0026] Explanation of icon numbers:

[0027] 100. Test device for thrust performance of electric limit switch; 200. Electric limit switch;

[0028] 1. Frame; 11. Lower support; 12. Upper support; 13. Test space;

[0029] 2. Fixing part; 21. Installation space; 22. First bracket; 23. Second bracket;

[0030] 3. Guiding section;

[0031] 4. Load-bearing part; 41. Through hole; 42. Limiting part; 421. Limiting rod; 43. Locking part;

[0032] 5. Counterweight assembly; 51. Weight; 511. Limiting hole; 52. Spacer section.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] 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 scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] An electric door limiter is a device that uses a motor to overcome the weight of the door and the resistance of the hinges, allowing the door to open, stop, or close according to predetermined control requirements. With the increasing popularity of mid-to-large SUVs and MPVs, doors are becoming larger and heavier, resulting in greater force when opening and closing them, and a poor experience when opening and closing them on slopes. The electric door limiter has significantly improved the user's door opening and closing experience.

[0038] The electric limiter mainly consists of a motor, a planetary gearbox (or worm gear) for speed reduction and torque amplification, a trapezoidal lead screw and nut slider, and a push rod. Through reasonable matching and calculation of relevant system performance parameters, the maximum push-out force, pull-out force, and stall force of the electric limiter can be obtained. The stall force can be tested and evaluated using a tensile testing machine. However, the current practice for testing the push-out and pull-out forces of the electric limiter involves evaluating the push-out and pull-out forces on different slopes after a real vehicle has been produced. However, due to numerous influencing factors, such as the different forces required for different door opening angles due to the door's tilt angle, the initial theoretical calculations cannot be verified, resulting in a long development cycle for the electric limiter.

[0039] To solve the above technical problems, such as Figure 1 and Figure 2 As shown, this utility model proposes a thrust performance testing device 100 for an electric limiter 200, including a frame 1, a fixing part 2, a guide part 3, a load-bearing part 4, and a counterweight assembly 5. The fixing part 2 is disposed on the frame 1 for fixing the electric limiter 200; the guide part 3 is disposed on the frame 1 and located on the periphery of the fixing part 2, and the guide part 3 extends upward; the load-bearing part 4 is movably disposed on the guide part 3 in a vertical direction; the counterweight assembly 5 includes a plurality of weights 51, at least one of the weights 51 being detachably mounted on the load-bearing part 4.

[0040] The technical solution of this utility model securely fixes the electric limiter 200 with the fixing part 2, preventing positional changes of the electric limiter 200 during the test, ensuring the stability and consistency of the test environment, and thus improving the accuracy of the test results. The guide part 3 provides precise guidance for the movement of the load part 4, reducing deviations and swaying during the movement of the load part 4, making the test process more controllable and further improving the reliability of the test results. The detachable design of the weights 51 in the counterweight assembly 5 allows for flexible adjustment of the weight of the load part 4 according to the performance characteristics and test requirements of different electric limiters 200. This means that the test device can adapt to the testing of various types and specifications of electric limiters 200, possessing strong versatility and flexibility. It can simulate different actual working load scenarios, comprehensively testing the thrust performance of the electric limiter 200 under various conditions, thereby providing richer and more accurate data support for the design, optimization, and quality evaluation of the electric limiter 200.

[0041] In one embodiment, the frame 1 includes a lower support 11 and an upper support 12, with the fixing part 2 disposed on the lower support 11. The upper support 12 is spaced apart from the lower support 11 to form a test space 13 between them, and the guide part 3 is erected in the test space 13. This arrangement divides the frame 1 into the lower support 11 and the upper support 12, providing a basic framework for the entire testing device. The lower support 11 serves as the mounting point for the fixing part 2, while the upper support 12, spaced apart from the lower support 11, forms the test space 13, creating space for the installation and testing of other components. By placing the fixing part 2 on the lower support 11, a stable mounting base for the electric limiter 200 is ensured during testing, preventing swaying or displacement and ensuring the stability of the testing environment. The guide part 3, erected in the test space 13, provides a clear guiding path for the vertical movement of the load-bearing part 4, enabling it to move along a predetermined direction and ensuring the accuracy of the testing process.

[0042] In one embodiment, multiple guide portions 3 are provided, surrounding the periphery of the frame 1. This arrangement, with multiple guide portions 3 distributed around the load-bearing part 4, provides support and guidance on all sides, preventing the load-bearing part 4 from tilting, swaying, or deviating from its predetermined trajectory during movement. For example, during testing, the thrust generated by the electric limiter 200 may subject the load-bearing part 4 to uneven forces. If only a single guide portion 3 is present, the load-bearing part 4 is prone to deviation; however, multiple guide portions 3 acting simultaneously from different directions effectively counteract the effects of these uneven forces, ensuring that the load-bearing part 4 always moves along the accurate vertical direction, thus improving the stability of the load-bearing part 4's movement during testing.

[0043] In one embodiment, the lower end of the fixing part 2 is disposed on the frame 1. An installation space 21 is formed inside the fixing part 2 to accommodate the electric limiter 200. An installation area is provided at the upper end of the fixing part 2 to fix the electric limiter 200. This arrangement, with the lower end of the fixing part 2 connected to the frame 1, provides a stable support foundation for the entire fixing structure, ensuring the stability of the fixing part 2 on the frame 1. The internal installation space 21 and the upper installation area are designed specifically for the characteristics of the electric limiter 200, aiming to achieve effective placement and fixation of the electric limiter 200. The installation space 21, used to accommodate the electric limiter 200, provides a relatively independent and suitable placement environment for the electric limiter 200, avoiding interference with other components and also protecting the electric limiter 200 from accidental collisions or damage from external factors. The installation area at the upper end of the fixing part 2 facilitates the installation and removal of the electric limiter 200 by operators. By securing the electric limit switch 200 in the mounting area, it can be ensured that the electric limit switch 200 will not loosen or shift during testing. For example, it can be secured by screws or clips.

[0044] In one embodiment, the fixing part 2 includes a symmetrically arranged first bracket 22 and a second bracket 23. The first bracket 22 and the second bracket are detachably mounted on the frame 1, so that the installation space 21 formed between them is adjustable. This arrangement, with the fixing part 2 composed of the symmetrical first bracket 22 and the second bracket 23, ensures structural stability and balance, allowing the fixing part 2 to bear force evenly when supporting the electric limiter 200. The detachable mounting of the first bracket 22 and the second bracket 23 to the frame 1 provides a degree of flexibility to the fixing part 2 structure. Operators can easily install, remove, or adjust the position of the first bracket 22 and the second bracket 23 according to actual needs. Furthermore, since the first bracket 22 and the second bracket 23 are detachable, the size of the installation space 21 formed between them can be adjusted according to the specific dimensions of the electric limiter 200. This means that the fixing part 2 can be adapted to electric limiters 200 of different sizes, enhancing the versatility of the device.

[0045] In one embodiment, the load-bearing part 4 is provided with a through hole 41, and the guide part 3 passes through the through hole 41, so that the load-bearing part 4 can slide along the guide part 3. This arrangement, by providing a through hole 41 on the load-bearing part 4 and allowing the guide part 3 to pass through this through hole 41, is a clever structural design. It establishes a direct connection between the load-bearing part 4 and the guide part 3, enabling them to work together to achieve a specific movement pattern for the load-bearing part 4. The placement of the guide part 3 through the through hole 41 provides a clear constraint on the movement of the load-bearing part 4. The load-bearing part 4 can only slide along the direction of the guide part 3, limiting its degrees of freedom in other directions and ensuring the directionality and controllability of its movement.

[0046] In one embodiment, a limiting part 42 is provided on the load-bearing part 4, and at least one weight 51 is detachably installed on the limiting part 42. This configuration allows for convenient adjustment of the weight of the load-bearing part 4 by detachably installing the weight 51. In the thrust performance test of the electric limiter 200, different electric limiters 200 may require different load conditions to simulate the actual working environment. The number of weights 51 can be increased or decreased according to the test requirements to achieve a suitable weight for the load-bearing part 4, thereby more accurately testing the performance of the electric limiter 200 under different loads. Because the load can be flexibly adjusted, this device can adapt to the testing of various electric limiters 200 with different specifications and performance requirements. For electric limiters 200 with larger thrust, the number of weights 51 can be increased to increase the load; for electric limiters 200 with smaller thrust, the number of weights 51 can be reduced, making the test environment more consistent with its actual working conditions and improving the relevance and accuracy of the test.

[0047] In one embodiment, the limiting part 42 includes a limiting rod 421, and each weight 51 is provided with a limiting hole 511. The weight 51 is limited to the limiting rod 421 through the limiting hole 511. With this configuration, the weight 51 can be securely installed on the load-bearing part 4 through the cooperation of the limiting rod 421 and the limiting hole 511. During the thrust performance test of the electric limiter 200, even if the load-bearing part 4 is subjected to a large external force or is in a dynamic motion state, the weight 51 will not easily shift, thus ensuring the stability and accuracy of the load during the test. This makes the installation and removal of the weight 51 simple and easy. The operator only needs to align the limiting hole 511 of the weight 51 with the limiting rod 421 and slip it on to complete the installation; conversely, removing the weight 51 from the limiting rod 421 achieves disassembly. This greatly improves the efficiency of adjusting the load during the test, saving time and labor costs.

[0048] In one embodiment, the limiting rod 421 has an external thread on its outer side and a locking part 43 on its inner side. The limiting rod 421 is threaded to the locking part 43. With this configuration, when the weight 51 is installed on the limiting rod 421, rotating the locking part 43 allows it to move downwards along the external thread of the limiting rod 421, thus firmly fixing the weight 51 to the load-bearing part 4. During the thrust performance test of the electric limiter 200, even if the load-bearing part 4 is subjected to significant vibration or dynamic force, the locking part 43 prevents the weight 51 from loosening or shifting, ensuring the stability of the load and the accuracy of the test. The threaded connection makes the installation and removal of the locking part 43 very convenient. If it is necessary to replace the weight 51 or maintain the load-bearing part 4, the locking part 43 can be easily rotated to remove it; after the operation is completed, the weight 51 can be re-fixed by rotating the locking part 43. This convenience improves the efficiency of the testing equipment and reduces the time and cost of equipment maintenance.

[0049] In one embodiment, the configuration component further includes a spacer 52, which is disposed between two adjacent weights 51. This arrangement provides a clear separation between the weights 51, making it easier for operators to install and remove them. The position of each weight 51 can be clearly identified, preventing interference between them, improving operational efficiency, and reducing the possibility of operational errors.

[0050] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A test device for the thrust performance of an electric limiter, characterized in that, include: Frame; A fixing part is provided on the frame to fix the electric limiter; A guide portion is disposed on the frame and located on the periphery of the fixing portion, and the guide portion extends upward. The load-bearing part is movably mounted on the guide part in the vertical direction; as well as, The counterweight assembly includes multiple weights, at least one of which is detachably mounted on the load-bearing part.

2. The electric limiter thrust performance testing device as described in claim 1, characterized in that, The frame includes: The lower support portion, wherein the fixing portion is disposed on the lower support portion; An upper support portion is spaced apart from the lower support portion to form a test space between them, and a guide portion is erected in the test space.

3. The electric limiter thrust performance testing device as described in claim 1 or 2, characterized in that, The guide section is provided in multiple parts, and the multiple guide sections surround the periphery of the frame.

4. The electric limiter thrust performance testing device as described in claim 1, characterized in that, The lower end of the fixing part is disposed on the frame, and an installation space is formed inside the fixing part for accommodating the electric limiter. An installation area is provided at the upper end of the fixing part for fixing the electric limiter.

5. The electric limiter thrust performance testing device as described in claim 4, characterized in that, The fixing part includes a first bracket and a second bracket symmetrically arranged. The first bracket and the second bracket are detachably mounted on the frame so that the installation space formed by the gap between them is adjustable.

6. The electric limiter thrust performance testing device as described in claim 1, characterized in that, The load-bearing part is provided with a through hole, and the guide part passes through the through hole so that the load-bearing part can slide along the guide part.

7. The electric limiter thrust performance testing device as described in claim 1, characterized in that, The load-bearing part is provided with a limiting part, and at least one of the weights can be detachably installed on the limiting part.

8. The electric limiter thrust performance testing device as described in claim 7, characterized in that, The limiting part includes a limiting rod, and each of the weights is provided with a limiting hole, through which the weight is limited to the limiting rod.

9. The electric limiter thrust performance testing device as described in claim 8, characterized in that, The limiting rod has an external thread on its outer side and a locking part on its side. The locking part has an internal thread, and the limiting rod is threadedly connected to the locking part.

10. The electric limiter thrust performance testing device as described in claim 1, characterized in that, The counterweight assembly also includes a spacer portion, which is placed between two adjacent weights.

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