Stay wire tensioner for engine test bench
By designing a cable tensioner on the engine test bench, and using a fixed plate and compression spring structure to apply tension to the cable, the problem of cable loosening during instantaneous acceleration and deceleration is solved, and synchronous movement of the cable and pulley is achieved. The structure is compact and easy to manufacture.
Patent Information
- Application Number
- CN202520557432.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-27
AI Technical Summary
On the engine test bench, during instantaneous acceleration and deceleration, the pulley speed is often slower than the speed at which the throttle cable comes off, causing the pulley to jam and slip.
A cable tensioner for an engine test bench was designed. It adopts a fixed plate and compression spring structure. The tension is applied to the cable by a pressure plate, so that the cable moves synchronously with the pulley and prevents it from loosening.
It achieves synchronous movement of the pulley and the pull line, avoiding the loosening of the pull line during rapid release. It has a compact structure and is simple to manufacture.
Smart Images
Figure CN223870304U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the test bench optimization technical field of engine, specifically speaking, it is a kind of engine test bench is used to pull line tensioner. BACKGROUND
[0002] Model vehicle needs to be loaded on engine test bench in working condition, for the convenience of electrification automatic control, accelerator and brake and other actuators adopt robot system to operate through air pressure equipment and pull line, and the line speed of pulley is generally very smooth when steady acceleration and deceleration, but the line speed of pulley is slower than the speed of accelerator pull line loosening in transient acceleration and deceleration, and with frequent use pulley, there appears jam and slip, so it needs to be installed with a tensioner in the process of pulley and pull line terminal to buffer the problem of different step of pull line and pulley in rapid change. CONTENT OF UTILITY MODEL
[0003] The utility model discloses a kind of pull line tensioner for engine test bench, to realize the purpose suitable for the buffering effect to pull line speed, make pull line and pulley realize synchronous motion.
[0004] To achieve the above object, the utility model adopts the following technical means:
[0005] A kind of pull line tensioner for engine test bench, including fixed plate, the fixed plate is structured with the slide that passes through, the slide is embedded with compression spring, the top end of the compression spring is in abutment with the abutment mechanism on the top surface of the slide, the bottom end of the compression spring is installed with pressing piece, the fixed plate is structured with positioning hole.
[0006] As preferred, the top side of the fixed plate is structured with the threaded groove that communicates with the slide, the abutment mechanism includes bolt that is screwed in the threaded groove, the bottom end of the bolt is in abutment with the top end of the compression spring.
[0007] Further, a spring pad is provided on the bolt, and the spring pad is arranged between the fixed plate and the screw head of the bolt.
[0008] Further, the inner cavity of the slide is used to embed the compression spring, the through hole of the fixed plate on the fixed plate is smaller than the inner cavity width of the slide, and the through hole of the slide is used for the wire body of pull line to pass through.
[0009] Further, the bottom end of the fixed plate is structured with the through accommodating slot, the width of the accommodating slot is directly connected with the through hole of the slide and has the same width.
[0010] Further, the width of the through hole of the slide is matched with the outer diameter of the pull line.
[0011] Further, the fixed plate is further provided with a through hole parallel to the sliding direction of the slide, the inner diameter of the through hole is larger than the width of the through hole of the slide, and the through hole is used for the joint end of the pull wire to pass through.
[0012] Further, the through hole is arranged on the side of the slide close to the abutting mechanism.
[0013] Further, the positioning hole is arranged at the four corners of the fixed plate in a rectangular manner.
[0014] Further, the fixed plate is arranged at an angle of 20°-70° with the pull wire.
[0015] In the process of use, the utility model has the following beneficial effects:
[0016] The fixed plate is installed on the test bench equipment seat through the positioning hole, the pull wire passes through the slide and enters the tension control area, and in the state of pull wire loading, the pressing plate is always acted on the top surface of the pull wire by the compression spring, so that in the state that the fixed plate and the pull wire maintain a certain angle, when the pull wire moves upward, the pressing plate is pushed to move upward, when the pull wire moves downward, the pressing plate maintains the pressing state of the pull wire and moves downward under the action of the compression spring, so that the tension of the pull wire is realized through the control of the spring, the line speed in the pull wire loosening process is slowed down, the pull wire speed is consistent with the pulley speed, and the loosening is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 It is a structural schematic diagram of the utility model.
[0018] Fig. 2 It is a half-partial structural schematic diagram of the utility model.
[0019] Fig. 3 It is a front view structural schematic diagram of the utility model.
[0020] Fig. 4 It is a longitudinal section structural schematic diagram of the utility model.
[0021] Wherein, 1-fixed plate, 2-slide, 3-compression spring, 4-pressing plate, 5-positioning hole, 6-bolt, 7-spring pad, 8-give way groove, 9-through hole. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0025] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] Please refer to Figs. 1 to 4As shown, a kind of engine test bench pull wire tensioner, including fixed plate 1, the fixed plate 1 is configured with the sliding channel 2 passing through, the compression spring 3 is embedded in the sliding channel 2, the top end of the compression spring 3 is in contact with the abutting mechanism set on the top surface of the sliding channel 2, the abutting mechanism here can be the top end inner wall of sliding channel 2, the bottom end of the compression spring 3 is installed with the pressing piece 4, the fixed plate 1 is configured with the positioning hole 5.
[0029] In this way, the fixed plate 1 is installed on the test bench equipment seat through the positioning hole 5, the pull wire is passed through the sliding channel 2 into the area of tension control, and in the state of pull wire loading, the pressing piece 4 is always acted on the top surface of the pull wire by using the compression spring 3, so that in the state that the fixed plate 1 keeps a certain angle with the pull wire, when the pull wire moves upward, the pressing piece 4 is pushed to move upward, when the pull wire moves downward, the pressing piece 4 keeps the pressing state to the pull wire and moves downward under the action of the compression spring 3, so that the tensioning effect to the pull wire is realized through the control of the spring, the line speed in the process of pull wire loosening is slowed down, the pull wire speed is consistent with the speed of the pulley, and the loosening is avoided.
[0030] Further, in order to adjust the pressure of the compression spring 3 on the pressing piece 4, so as to adjust the pressing state to the pull wire, the top side of the fixed plate 1 is configured with the threaded groove communicated with the sliding channel 2, the abutting mechanism includes the bolt 6 threaded in the threaded groove, the bottom end of the bolt 6 is in contact with the top end of the compression spring 3.
[0031] In this way, the spring elasticity can be kept by tightening the bolt 6, so that the pressing piece 4 plays a role in the longitudinal tensioning of the pull wire.
[0032] In order to ensure the installation stability of the bolt 6, the elastic pad 7 is sleeved on the bolt 6, and the elastic pad 7 is arranged between the fixed plate 1 and the screw head of the bolt 6.
[0033] And for the setting of the sliding channel 2, in detail, the inner cavity of the sliding channel 2 is used for embedding the compression spring 3, the through hole of the fixed plate 1 is smaller than the width of the inner cavity of the sliding channel 2, and the through hole of the sliding channel 2 is used for the wire body of the pull wire to pass through.
[0034] In addition, the fixed plate 1 is configured with the through gap 8 at the bottom end of the sliding channel 2, and the width of the gap 8 is the same as the width of the through hole of the sliding channel 2.
[0035] In this way, the height difference of the wire diameter of the pull wire can be left out by the setting of the gap 8, so as to prevent the pull wire from being clamped too tightly.
[0036] Further, the width of the through hole of the slide 2 is matched with the outer diameter of the pull wire.
[0037] Thus, the transverse displacement of the pull wire is limited by the through hole of the slide 2, avoiding the transverse shaking.
[0038] Furthermore, since the pull wire generally has a larger joint end, in order to facilitate the joint end to pass through, the fixing plate 1 is further provided with a through hole 9 parallel to the through direction of the slide 2, the inner diameter of the through hole 9 is larger than the width of the through hole of the slide 2, and the through hole 9 is used for the joint end of the pull wire to pass through.
[0039] Moreover, the through hole 9 is arranged on the side of the slide 2 close to the abutting mechanism.
[0040] Further, the positioning hole 5 is arranged in a rectangular manner at the four corner positions of the fixing plate 1.
[0041] At the same time, in order to achieve stable tensioning of the pull wire during operation, the fixing plate 1 is arranged at a state of 20°-70° with the pull wire.
[0042] Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A stay tensioner for an engine test stand, characterized by, Including fixed plate (1), the fixed plate (1) is structured with the slide (2) that penetrates, the slide (2) is inlayed with compression spring (3), the top end of the compression spring (3) is in contact with the abutment mechanism in the top surface of the slide (2), the bottom end of the compression spring (3) is installed with the pressing piece (4), the fixed plate (1) is structured with the positioning hole (5).
2. A stay tensioner for an engine test bed according to claim 1, wherein The top side of the fixed plate (1) is structured with the threaded groove that communicates with the slide (2), the abutment mechanism includes the bolt (6) that is screwed in the threaded groove, the bottom end of the bolt (6) is in contact with the top end of the compression spring (3).
3. A stay tensioner for an engine test bed according to claim 2, wherein The bolt (6) is equipped with the elastic pad (7), the elastic pad (7) is located between the fixed plate (1) and the screw head of the bolt (6).
4. A pull wire tensioner for an engine test stand according to claim 1, wherein, The inner cavity of the slide (2) is used for embedding the compression spring (3), the through hole of the fixed plate (1) is less than the width of the inner cavity of the slide (2), and the through hole of the slide (2) is used for the wire body of the pull wire to pass through.
5. A stay tensioner for an engine test bed according to claim 4, wherein The fixed plate (1) is structured with the through let go slot (8) at the bottom end of the slide (2), the width of the let go slot (8) is linearly communicated with the through hole of the slide (2) and the width is same.
6. A stay tensioner for an engine test bed according to claim 4, wherein The width of the through hole of the slide (2) is matched with the outer diameter of the pull wire.
7. A stay tensioner for an engine test bed as claimed in claim 1, wherein, The fixed plate (1) is also structured with the through hole (9) parallel to the penetration direction of the slide (2), the inner diameter of the through hole (9) is greater than the width of the through hole of the slide (2), and the through hole (9) is used for the joint end of the pull wire to pass through.
8. A stay tensioner for an engine test bed according to claim 7, wherein The through hole (9) is located on the side of the slide (2) close to the abutment mechanism.
9. A stay tensioner for an engine test bed according to claim 1, wherein The positioning hole (5) is arranged in the four corner positions of the fixed plate (1) in rectangular.
10. The pull wire tensioner for an engine test stand of claim 1, wherein, The fixed plate (1) is arranged in the state of 20 ° ~ 70 ° with the pull wire.