Heavy truck frame strength detection device

Abstract

The utility model belongs to the technical field of frame strength detection, and particularly discloses a heavy truck frame strength detection device which comprises a base, two n-shaped frames are symmetrically and fixedly arranged on the left edge and the right edge of the upper side of the base, guide rails are symmetrically and slidably arranged between horizontal sections of the two n-shaped frames, and contact type high-precision distance measuring mechanisms are slidably arranged on the guide rails in an array mode. Supporting plates are symmetrically and fixedly arranged on the upper side of the base and located between the two n-shaped frames, the length direction of the supporting plates is perpendicular to the guide rails, a pressurization lifting mechanism is arranged on the upper side of the base and located between the two supporting plates, telescopic limiting mechanisms are symmetrically and fixedly arranged on the upper side of the base and located on the outer sides of the n-shaped frames, and a control table is fixedly arranged on the upper side of the base. According to the utility model, the movable detection mechanism is adopted, the flexible measurement of different parts of the frame can be realized, the contact measurement is adopted, the influence of environmental factors is avoided, the interference of factors such as oil stain, dust, corrosion and the like on the measurement result is avoided, and the detection precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle frame strength detection, in particular to a heavy truck frame strength detection device. Background Art

[0002] Heavy-duty trucks, as essential tools in modern logistics and transportation, carry a massive load, making their safety and reliability paramount. As the core component for carrying and transmitting loads, the strength of the truck frame is directly related to the vehicle's safety, service life, and transportation efficiency. Therefore, comprehensive, accurate, and efficient strength testing of heavy-duty truck frames is crucial for ensuring safe operation and improving transportation efficiency. Currently, heavy-duty truck frame strength testing involves measuring frame deformation under load using equipment such as displacement sensors. However, this testing technology has numerous shortcomings.

[0003] Existing heavy-duty truck frame strength testing devices typically install displacement sensors in pre-set, fixed positions. Heavy-duty truck frames are complex structures, with significant variations in shape, size, material properties, and stress conditions across different parts, resulting in varying deformation characteristics. Furthermore, during actual operation, heavy-duty truck frames may experience localized stress concentrations, leading to significant deformation in certain areas. Fixed-position sensors struggle to accurately capture these localized deformations, making it difficult to accurately assess the frame's overall strength performance.

[0004] Heavy-duty truck frame strength testing typically requires outdoor or workshop environments, often subject to extreme temperature fluctuations, severe dust pollution, and strong electromagnetic interference. Existing displacement sensors are often sensitive to these working environments and are prone to loss of measurement accuracy, data drift, and even damage under harsh conditions, compromising the accuracy and reliability of test results. Furthermore, the frame surface may be contaminated by oil, dust, and rust, which can cause errors in high-precision displacement sensors measuring subtle deformations. Utility Model Content

[0005] In response to the above situation, the utility model provides a heavy truck frame strength detection device, which adopts a movable detection mechanism to realize flexible measurement of different parts of the frame. It adopts contact measurement, is not affected by environmental factors, avoids the interference of factors such as oil, dust, rust on the measurement results, and improves the detection accuracy.

[0006] The technical solution adopted by the utility model is as follows: The utility model provides a strength detection device for a heavy truck frame, which includes a base. On the upper side of the base, two C-shaped frames are symmetrically and fixedly arranged at the left and right edges. Between the horizontal sections of the two C-shaped frames, a guide rail is symmetrically and slidably arranged. On the guide rail, a contact type high-precision distance measuring mechanism is arranged in an array. On the upper side of the base, between the two C-shaped frames, support plates are symmetrically and fixedly arranged for supporting the frame. The length direction of the support plates is perpendicular to the guide rail. On the upper side of the base, between the two support plates, a pressurizing and lifting mechanism is arranged for detecting the strength of the frame. On the upper side of the base, outside the C-shaped frames, telescopic limiting mechanisms are symmetrically and fixedly arranged for positioning the two ends of the frame. On the upper side of the base, a control console is fixedly arranged for controlling the operation of the pressurizing and lifting mechanism and the telescopic limiting mechanism.

[0007] Further, the contact type high-precision distance measuring mechanism includes an I-shaped slider, a first bolt and a second bolt. The I-shaped slider is closely and slidably arranged in the guide rail. A sliding hole is vertically penetrated through the center of the I-shaped slider. On the I-shaped slider, a dial indicator is arranged upright. The dial indicator is used as a general measuring tool for high-precision length measurement. The sleeve of the dial indicator is closely and slidably arranged in the sliding hole. The first bolt is facing the upper outer side of the I-shaped slider. When the first bolt moves in a threaded manner with the I-shaped slider, it can contact the sleeve of the dial indicator for fixing the dial indicator. The second bolt is facing the lower lower side of the I-shaped slider. When the second bolt moves in a threaded manner with the I-shaped slider, it can contact the guide rail for fixing the I-shaped slider.

[0008] Further, the pressurizing and lifting mechanism includes a first hydraulic cylinder. The first hydraulic cylinder is vertically and fixedly arranged at the center position on the upper side of the base. On the upper side of the first hydraulic cylinder, a pressurizing rod is horizontally and fixedly arranged for applying pressure to the frame. The pressurizing rod is perpendicular to the guide rail.

[0009] Further, the telescopic limiting mechanism includes a fixed seat. The fixed seat is fixedly arranged at the middle part of the upper side edge of the base. On the surface of the fixed seat facing the pressurizing rod, a receiving groove is opened. In the receiving groove, a limiting block is horizontally and closely slidably arranged. In the receiving groove, a second hydraulic cylinder is arranged. The two ends of the second hydraulic cylinder are respectively fixedly connected with the fixed seat and the limiting block for controlling the limiting block to extend out of and retract into the receiving groove.

[0010] Further, on the inner surface of the horizontal section of the C-shaped frame, a sliding groove is opened along the length direction. Along the length direction of the C-shaped frame, a limiting rod is fixedly arranged on the lower side surface of the sliding groove. At both ends of the guide rail, wheel frames are symmetrically and fixedly arranged respectively. In the wheel frames, guide wheels are rotatably arranged. The guide wheels are engaged and rollingly connected with the limiting rod. The upper side surface of the wheel frame is closely attached to the upper side surface of the sliding groove.

[0011] Further, the length of the guide rail and the minimum distance between the two fixed seats are both greater than the length of the frame.

[0012] Furthermore, the length of the profile frame is greater than the width of the frame.

[0013] Furthermore, the vertical distance between the limit block and the support plate is greater than the thickness of the frame, so as to achieve smooth placement of the frame.

[0014] The beneficial effects achieved by the utility model using the above structure are as follows:

[0015] (1) The first hydraulic cylinder is set on the control panel to generate a specified thrust to push the pressure rod to press the frame. When the balance is reached, the middle part of the frame will bend and deform under the obstruction of the limit block. During the upward deformation of the frame, the probe of the dial indicator will be pushed upward. The upward distance is recorded by the reading of the dial indicator pointer, so that the deformation of each part of the frame can be measured. Since the probe of the dial indicator is in contact with the frame, contact measurement is realized, which can penetrate oil, dust and rust, thereby avoiding the interference of the above factors on the measurement results. In addition, since the dial indicator is a purely mechanical structure, it is not affected by environmental factors such as temperature, electromagnetic interference and air quality under the contact detection method, making the detection results more accurate and reliable.

[0016] (2) Push the guide rail to slide to the top of the frame, then loosen the second bolt to move the different type sliders to the appropriate detection point, and then tighten the sliders to fix them, so as to achieve flexible measurement of different parts of the frame and accurately evaluate the overall strength performance of the frame.

[0017] (3) The connection method of the dial indicator on the I-type slider allows the dial indicator to be replaced at any time, which is convenient for maintenance. At the same time, the dial indicator or micrometer of different accuracy can be appropriately replaced, making the operation process faster and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a heavy truck frame strength detection device.

[0019] Figure 2 for Figure 1 Enlarged view of part A.

[0020] Figure 3 This is a front view of a heavy truck frame strength detection device proposed by the utility model.

[0021] Figure 4 This is an exploded structural diagram of the positional relationship between an I-shaped slider and a guide rail of a heavy truck frame strength detection device proposed by the present invention.

[0022] Figure 5 This is a schematic diagram of the exploded structure of the positional relationship between the guide rails and the profile frame of a heavy truck frame strength detection device proposed by the present invention.

[0023] Figure 6 This is a structural schematic diagram of the positional relationship between the second hydraulic cylinder and the limit block of a heavy truck frame strength detection device proposed by the present invention.

[0024] Among them, 1. base, 2. profile frame, 21. sliding groove, 22. limit rod, 23. wheel frame, 24. guide wheel, 3. guide rail, 4. contact high-precision distance measuring mechanism, 41. I-type slider, 42. sliding hole, 43. dial indicator, 44. second bolt, 45. first bolt, 5. pressurized lifting mechanism, 51. first hydraulic cylinder, 52. pressurized rod, 6. support plate, 7. telescopic limit mechanism, 71. fixed seat, 72. storage slot, 73. limit block, 74. second hydraulic cylinder, 8. control panel.

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown in the figure, the utility model provides a strength detection device for a heavy truck frame, which includes a base 1. On the upper side of the base 1, two U-shaped frames 2 are symmetrically and fixedly arranged at the left and right edges. Between the horizontal sections of the two U-shaped frames 2, a guide rail 3 is symmetrically and slidably arranged. On the guide rail 3, a contact type high-precision ranging mechanism 4 is arranged in an array and slidably. On the upper side of the base 1, between the two U-shaped frames 2, a support plate 6 is symmetrically and fixedly arranged. The length direction of the support plate 6 is perpendicular to the guide rail 3. On the upper side of the base 1, between the two support plates 6, a pressurizing and lifting mechanism 5 is arranged. On the upper side of the base 1, outside the U-shaped frames 2, a telescopic limiting mechanism 7 is symmetrically and fixedly arranged. On the upper side of the base 1, a console 8 is fixedly arranged.

[0029] Among them, the contact type high-precision ranging mechanism 4 includes an I-shaped slider 41, a first bolt 45 and a second bolt 44. The I-shaped slider 41 is closely and slidably arranged in the guide rail 3. A sliding hole 42 is vertically penetrated through the center of the I-shaped slider 41. A dial indicator 43 is arranged on the I-shaped slider 41 in a positive position. The sleeve of the dial indicator 43 is closely and slidably arranged in the sliding hole 42. The first bolt 45 is opposite to the upper outer side of the I-shaped slider 41. When the first bolt 45 moves in a threaded manner with the I-shaped slider 41, it can contact the sleeve of the dial indicator 43. The second bolt 44 is opposite to the lower lower side of the I-shaped slider 41. When the second bolt 44 moves in a threaded manner with the I-shaped slider 41, it can contact the guide rail 3. The pressurizing and lifting mechanism 5 includes a first hydraulic cylinder 51. The first hydraulic cylinder 51 is vertically and fixedly arranged at the center position on the upper side of the base 1. A pressurizing rod 52 is horizontally and fixedly arranged on the upper side of the first hydraulic cylinder 51. The pressurizing rod 52 is perpendicular to the guide rail 3.

[0030] Among them, the telescopic limiting mechanism 7 includes a fixed seat 71. The fixed seat 71 is fixedly arranged at the middle part of the upper side edge of the base 1. A receiving groove 72 is opened on the surface of the fixed seat 71 facing the pressurizing rod 52. In the receiving groove 72, a limiting block 73 is horizontally and closely slidably arranged. In the receiving groove 72, a second hydraulic cylinder 74 is arranged. The two ends of the second hydraulic cylinder 74 are respectively fixedly connected with the fixed seat 71 and the limiting block 73. On the inner surface of the horizontal section of the U-shaped frame 2, a sliding groove 21 is opened along the length direction. Along the length direction of the U-shaped frame 2, a limiting rod 22 is fixedly arranged on the lower side surface of the sliding groove 21. At both ends of the guide rail 3, wheel frames 23 are symmetrically and fixedly arranged. In the wheel frames 23, guide wheels 24 are rotatably arranged. The guide wheels 24 are engaged and rollingly connected with the limiting rod 22. The upper side surface of the wheel frame 23 is closely attached to the upper side surface of the sliding groove 21.

[0031] Among them, the length of the guide rail 3 and the minimum distance between the two fixed seats 71 are both greater than the length of the vehicle frame. The length of the U-shaped frame 2 is greater than the width of the vehicle frame. The vertical distance between the limiting block 73 and the support plate 6 is greater than the thickness of the vehicle frame.

[0032] When in use, confirm that the limit blocks 73 are completely entered into the storage grooves 72, and confirm that the guide rails 3 are located at both ends of the profile frame 2, and the heavy truck frame is moved horizontally to the top of the device through the lifting device and slowly moved down to the support plate 6. At this time, the length direction of the frame is facing the fixed seat 71, and the two second hydraulic cylinders 74 are controlled by the control console 8 to push the limit blocks 73 to extend to the appropriate distance, so that the limit blocks 73 block the frame in the vertical direction, and then the first hydraulic cylinder 51 is set by the control console 8 to generate a lifting force slightly greater than the weight of the frame, and drive the pressure rod 52 to lift the frame upward until the two ends of the frame are blocked by the limit blocks 73. Since the thrust of the set first hydraulic cylinder 51 just lifts the frame, the frame no longer rises after being blocked by the limit blocks 73, and exceeds The small thrust exerted has little effect on the vehicle frame and does not affect subsequent inspections. The guide rail 3 is pushed to slide to the top of the vehicle frame. Due to the cooperation between the guide wheel 24 and the limit rod 22, the guide rail 3 can be easily pushed and the moving direction of the guide rail 3 is fixed. Then loosen the second bolt 44 to move the different-type sliders 41 to the appropriate inspection point, and then tighten the sliders 41 to fix them. Loosen the first bolt 45 so that the sleeve of the dial indicator 43 can slide freely in the sliding hole 42. Then move the dial indicator 43 downward. When the pointer of the dial indicator 43 jumps, it indicates that the lowest probe of the dial indicator 43 is in contact with the vehicle frame. Then tighten the first bolt 45 to fix the dial indicator 43. Adjust the pointer of the dial indicator 43 to zero using the adjustment knob on the dial indicator 43. The preparation work is completed.

[0033] Then, the first hydraulic cylinder 51 is set through the control panel 8 to generate a specified thrust to push the pressure rod 52 to press the frame. When balance is reached, the middle part of the frame will bend and deform under the obstruction of the limit block 73. During the upward deformation of the frame, the probe of the dial indicator 43 will be pushed upward, and the upward distance is recorded by the reading of the pointer of the dial indicator 43, so that the deformation of various parts of the frame can be measured. Since the basic structure of the sleeve, probe, etc. of the dial indicator 43 is the existing basic technology, its shape and connection relationship have been basically formed, so the sleeve of the dial indicator 43 can be directly inserted into the sliding hole 42, and the probe of the dial indicator 43 can smoothly contact the frame. The above does not require additional technical improvements, so the structural principle and composition of the dial indicator 43 are no longer displayed in detail.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

[0036] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A heavy truck frame strength detection device, comprising a base (1), characterized in that: Two shaped frames (2) are symmetrically fixed on the left and right edges of the upper side of the base (1); a guide rail (3) is symmetrically slidably provided between the horizontal sections of the two shaped frames (2); a contact-type high-precision distance measuring mechanism (4) is slidably provided on the guide rail (3); a support plate (6) is symmetrically fixed between the two shaped frames (2) on the upper side of the base (1); the length direction of the support plate (6) is perpendicular to the guide rail (3); a pressurizing and lifting mechanism (5) is provided between the two support plates (6) on the upper side of the base (1); a telescopic limiting mechanism (7) is symmetrically fixed on the outer side of the shaped frames (2) on the upper side of the base (1); and a control console (8) is fixed on the upper side of the base (1).

2. A heavy truck frame strength detection device according to claim 1, characterized in that: The contact-type high-precision distance measuring mechanism (4) comprises an I-shaped slider (41), a first bolt (45) and a second bolt (44); the I-shaped slider (41) is tightly slidably arranged in the guide rail (3); a sliding hole (42) is vertically penetrated through the center of the I-shaped slider (41); a dial indicator (43) is provided on the I-shaped slider (41); a sleeve of the dial indicator (43) is tightly slidably arranged in the sliding hole (42); the first bolt (45) faces the upper outer side surface of the I-shaped slider (41); the first bolt (45) can contact the sleeve of the dial indicator (43) when the first bolt (45) moves with the I-shaped slider (41); the second bolt (44) faces the lower side surface of the I-shaped slider (41); the second bolt (44) can contact the guide rail (3) when the second bolt (44) moves with the I-shaped slider (41).

3. A heavy truck frame strength detection device according to claim 2, characterized in that: The pressurizing and lifting mechanism (5) comprises a first hydraulic cylinder (51), the first hydraulic cylinder (51) being vertically fixed at the center position of the upper side of the base (1), and a pressurizing rod (52) being horizontally fixed on the upper side of the first hydraulic cylinder (51), the pressurizing rod (52) being perpendicular to the guide rail (3).

4. A heavy truck frame strength detection device according to claim 3, characterized in that: The telescopic limiting mechanism (7) includes a fixed seat (71), the fixed seat (71) is fixedly arranged at the middle of the upper edge of the base (1), the fixed seat (71) is provided with a receiving groove (72) on the surface of the side facing the pressure rod (52), a limiting block (73) is provided in the receiving groove (72) so as to slide horizontally and tightly, and a second hydraulic cylinder (74) is provided in the receiving groove (72), and the two ends of the second hydraulic cylinder (74) are respectively fixedly connected to the fixed seat (71) and the limiting block (73).

5. A heavy truck frame strength detection device according to claim 4, characterized in that: A sliding groove (21) is provided on the inner surface of the horizontal section of the shaped frame (2) along the length direction, and a limiting rod (22) is fixedly provided on the lower side of the sliding groove (21) along the length direction of the shaped frame (2). Wheel frames (23) are symmetrically fixed at both ends of the guide rail (3), and a guide wheel (24) is rotatably provided in the wheel frame (23). The guide wheel (24) is engaged with the limiting rod (22) and is rollingly connected. The upper side of the wheel frame (23) is in close contact with the upper side of the sliding groove (21).

6. A heavy truck frame strength detection device according to claim 5, characterized in that: The length of the guide rail (3) and the minimum distance between the two fixing seats (71) are both greater than the length of the vehicle frame.

7. A heavy truck frame strength detection device according to claim 6, characterized in that: The length of the profile frame (2) is greater than the width of the vehicle frame.

8. The heavy truck frame strength detection device according to claim 7, characterized in that: The vertical distance between the limit block (73) and the support plate (6) is greater than the thickness of the vehicle frame.

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