A kind of engineering machinery crane steel plate buffer rubber block impact test device
By introducing a positioning structure and a lifting structure into the impact testing device for buffer rubber blocks, the problem of test error caused by specimen position movement was solved, and the accuracy of test results and automated operation were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAIYAN ZHENDA AUTOMOBILE FITTINGS FACTORY
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-28
AI Technical Summary
In the prior art, the specimen is placed directly on the device, which causes the specimen to move during the contact between the specimen and the impact head in the impact test, resulting in errors in the test results.
The system employs a positioning and lifting structure, using springs and an electric telescopic rod to fix the buffer rubber block, and combines this with a force sensor to record data, ensuring the accuracy of the test.
It effectively prevents the buffer rubber block from shifting during the test, reduces manual operation, and improves the accuracy and automation of test results.
Smart Images
Figure CN224568668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of impact testing equipment technology, specifically to an impact testing device for steel plate buffer rubber blocks of engineering machinery cranes. Background Technology
[0002] Construction cranes play a crucial role in various engineering projects, and their safe and efficient operation directly affects project progress and quality. Steel plate cushioning blocks, as an important component of cranes, bear the heavy responsibility of cushioning and shock absorption during crane operations, playing an indispensable role in protecting the crane structure, reducing equipment wear, and ensuring operator safety. To ensure that the steel plate cushioning blocks can perform reliably and stably under actual crane operating conditions, comprehensive and accurate impact testing is essential. Impact testing simulates the impact loads borne by the blocks during crane operations, thereby testing key indicators such as their cushioning capacity, durability, and fatigue resistance.
[0003] In existing technologies, the specimen is usually placed directly on the device, and the impact test is generally completed by impacting the specimen with an impact head. Since the device does not have a positioning structure, the specimen will move due to the impact during the contact process with the impact head, which will cause errors in the test results.
[0004] This utility model proposes an impact testing device for steel plate buffer rubber blocks of engineering machinery cranes to solve the problem that the test specimen is usually placed directly on the device, which causes the specimen to move due to impact during the contact between the specimen and the impact head, thus causing errors in the test results. Utility Model Content
[0005] In order to overcome the problem that the test specimen is usually placed directly on the device in the above-mentioned background technology, the test specimen will move due to the impact during the contact between the specimen and the impact head, which will cause the test results to contain errors.
[0006] Based on the above technical concept, the technical solution adopted by this utility model is as follows:
[0007] An impact testing device for steel plate buffer rubber block of engineering machinery crane includes a buffer rubber block and a base plate. The buffer rubber block includes an upper steel plate and a lower steel plate. A rubber inner reinforcing layer is installed between the upper steel plate and the lower steel plate. Pre-reserved holes are opened at the four corners of the upper steel plate and the lower steel plate.
[0008] The top of the base plate is equipped with a lifting structure, the bottom of which is fitted with an impact head. A positioning structure is also provided on the top of the base plate near the lower steel plate.
[0009] The lifting structure is used to drive the impact head to rise and fall, and the positioning structure is used to fix the lower steel plate.
[0010] Further defining the above technical solution, the inner rubber reinforcing layer is configured as five layers.
[0011] Further defining the above technical solution, the lifting structure includes two sets of vertical rods, which are respectively installed at both ends of the top of the base plate. A top plate is installed on the top of the two sets of vertical rods. An electric telescopic rod is fixedly inserted in the middle of the top plate. A lifting plate is fixed at the bottom of the electric telescopic rod. A force sensor is installed at the bottom of the lifting plate. The force sensor is fixedly connected to the top of the impact head through a top rod at the bottom.
[0012] Further defining the above technical solution, the lifting plate has movable sleeves fixed on both sides for sliding cooperation with the vertical rod.
[0013] Further defining the above technical solution, a controller is installed on the side of the base plate near the lower steel plate, and the output terminal of the force sensor is electrically connected to the input terminal of the controller.
[0014] Further defining the above technical solution, the positioning structure includes four sets of fixing rods, which are respectively installed on the side of the top of the base plate near the bottom reserved hole. A sliding sleeve is slidably fitted on the outside of the fixing rod. A stop block is fixed on the top of the fixing rod. A spring is fixed between the stop block and the sliding sleeve, and the spring is fitted on the outside of the fixing rod. A positioning rod is fixed on the side of the sliding sleeve near the lower steel plate for engaging with the reserved hole on the lower steel plate.
[0015] Further defining the above technical solution, the stop block is fixedly connected to a limit rod on the side away from the lower steel plate, and an elastic rope is fixedly connected to the side of the sliding sleeve away from the lower steel plate. A collar is fixed to the end of the elastic rope away from the sliding sleeve for engaging with the limit rod.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) Preventing deviation: The spring force can push the positioning rod to engage in the corresponding reserved hole, thereby fixing the lower steel plate and the entire buffer block, preventing the buffer block from deviating during the test and causing errors in the test results.
[0018] (2) Reduce manpower input: The electric telescopic rod moves the lifting plate up and down, and then the top rod drives the impact head to work up and down repeatedly to conduct impact tests on the buffer rubber block. The pressure is transmitted to the force sensor at the bottom of the lifting plate to complete the measurement and recording of the impact resistance data of the buffer rubber block, thereby reducing the amount of manual labor during the test. Attached Figure Description
[0019] 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 these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the main structure of an impact testing device for steel plate buffer rubber blocks of an engineering machinery crane according to the present invention;
[0021] Figure 2 This is a top view schematic diagram of the impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to this utility model;
[0022] Figure 3 This utility model relates to an impact testing device for steel plate buffer rubber blocks used in engineering machinery cranes. Figure 1 Enlarged structural diagram at point A in the middle.
[0023] The components include: 1. Buffer rubber block; 11. Upper steel plate; 12. Lower steel plate; 13. Rubber inner reinforcing layer; 14. Pre-drilled hole; 2. Base plate; 3. Lifting structure; 31. Vertical rod; 32. Top plate; 33. Electric telescopic rod; 34. Lifting plate; 35. Movable sleeve; 36. Force sensor; 37. Top rod; 4. Impact head; 5. Positioning structure; 51. Fixed rod; 52. Sliding sleeve; 53. Stop block; 54. Spring; 55. Positioning rod; 56. Limiting rod; 57. Elastic rope; 58. Loop; 6. Controller. Detailed Implementation
[0024] The following is in conjunction with the appendix Figures 1-3 The present invention will be described in further detail below.
[0025] Example 1: This example provides an impact testing device for steel plate buffer rubber blocks of engineering machinery cranes, such as... Figure 1 As shown, this device addresses the problem of test specimens being placed directly on the apparatus, leading to positional shifts during impact testing and resulting in errors in the test results. It includes a buffer block 1 and a base plate 2. The buffer block 1 comprises an upper steel plate 11 and a lower steel plate 12, with a rubber inner reinforcing layer 13 fixedly installed between the upper and lower steel plates 11 and 12. Pre-drilled holes 14 are provided at the four corners of both the upper and lower steel plates 11 and 12. A lifting structure 3 is located at the top of the base plate 2, and an impact head 4 is installed at the bottom of the lifting structure 3. A positioning structure 5 is located on the top of the base plate 2 near the lower steel plate 12. The lifting structure 3 drives the impact head 4 to move up and down, while the positioning structure 5 secures the lower steel plate 12.
[0026] Combination Figure 1 and Figure 3 In an embodiment of this utility model, the positioning structure 5 includes four sets of fixing rods 51, which are respectively fixedly installed on the top of the base plate 2 near the bottom reserved hole 14. The outer side of the fixing rod 51 is slidably sleeved with a sliding sleeve 52. The top of the fixing rod 51 is fixed with a stop block 53. A spring 54 is fixed between the stop block 53 and the sliding sleeve 52, and the spring 54 is sleeved on the outer side of the fixing rod 51. The side of the sliding sleeve 52 near the lower steel plate 12 is fixed with a positioning rod 55, which is used to engage with the reserved hole 14 on the lower steel plate 12.
[0027] Combination Figure 1 and Figure 3 In this embodiment of the utility model, the stop block 53 is fixedly connected to the side of the lower steel plate 12 with a limit rod 56, and the sliding sleeve 52 is fixedly connected to the side of the lower steel plate 12 with an elastic rope 57. The end of the elastic rope 57 away from the sliding sleeve 52 is fixed with a collar 58 for engaging with the limit rod 56.
[0028] When an impact test is required on the buffer block 1, the operator pulls the collar 58 upwards. The collar 58, through the elastic rope 57, drives the sliding sleeve 52 to slide along the fixed rod 51 and compress the spring 54. As the sliding sleeve 52 moves, it drives the positioning rod 55 upwards until the collar 58 is fitted onto the limiting rod 56. At this point, the bottom of the lower steel plate 12 contacts the top of the base plate 2. Then, the operator removes the collar 58 from the limiting rod 56. Under the elastic force of the spring 54, the sliding sleeve 52 moves downwards, thereby causing the limiting rod 56 to engage inside the reserved hole 14 on the lower steel plate 12. The above operation is repeated to sequentially engage the remaining three positioning rods 55 into the corresponding reserved holes 14, thereby fixing the lower steel plate 12 and the entire buffer block 1, preventing the buffer block 1 from deviating during the test and causing errors in the test results.
[0029] Example 2: Reference Figure 1 and Figure 2 To address the issues of inconvenient adjustment and low automation in some testing devices during operation, the lifting structure 3 includes two sets of vertical rods 31, which are fixedly installed at both ends of the top of the base plate 2. The top of the two sets of vertical rods 31 is fixedly installed on a top plate 32. An electric telescopic rod 33 is fixedly inserted through the middle of the top plate 32. A lifting plate 34 is fixedly installed at the bottom of the electric telescopic rod 33. A force sensor 36 is fixedly installed at the bottom of the lifting plate 34. The force sensor 36 is fixedly connected to the top of the impact head 4 through a top rod 37 at the bottom.
[0030] Combination Figure 1 In this embodiment of the utility model, the lifting plate 34 has movable sleeves 35 fixed on both sides for sliding cooperation with the vertical rod 31.
[0031] Combination Figure 1 and Figure 2 In this embodiment of the utility model, a controller 6 is fixedly installed on the side of the base plate 2 near the lower steel plate 12, and the output end of the force sensor 36 is electrically connected to the input end of the controller 6.
[0032] When an impact test is required, the electric telescopic rod 33 is extended and retracted. The extension and retraction of the electric telescopic rod 33 drives the lifting plate 34 to move up and down. When the lifting plate 34 moves, it drives the movable sleeve 35 to slide along the vertical rod 31, thereby making the lifting plate 34 more stable when moving. While the lifting plate 34 moves, the force sensor 36 and the top rod 37 drive the impact head 4 to move up and down reciprocally, so that the impact head 4 can perform the impact test on the buffer rubber block 1. During the impact, the pressure is transmitted to the force sensor 36 at the bottom of the lifting plate 34 through the top rod 37. The force sensor 36 transmits the data to the controller 6 to complete the measurement and recording of the impact resistance data of the buffer rubber block 1, thereby reducing the amount of manual labor during the test.
[0033] Example 3: Reference Figure 1 To improve the overall service life of the buffer block 1, the inner rubber reinforcing layer 13 is configured as five layers, thereby improving the overall load-bearing capacity of the buffer block 1 and extending its service life.
[0034] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments, which is intended to enable those skilled in the art to understand and apply the present invention. However, it should not be assumed that the specific implementation of the present invention is limited to these descriptions.
Claims
1. An impact testing device for steel plate buffer rubber blocks of engineering machinery cranes, comprising buffer rubber blocks (1) and a base plate (2), characterized in that, The buffer block (1) includes an upper steel plate (11) and a lower steel plate (12). A rubber inner reinforcing layer (13) is installed between the upper steel plate (11) and the lower steel plate (12). Pre-reserved holes (14) are provided at the four corners of the upper steel plate (11) and the lower steel plate (12). A lifting structure (3) is provided on the top of the base plate (2), an impact head (4) is installed at the bottom of the lifting structure (3), and a positioning structure (5) is provided on the side of the top of the base plate (2) near the lower steel plate (12). Among them, the lifting structure (3) is used to drive the impact head (4) to lift, and the positioning structure (5) is used to fix the lower steel plate (12).
2. The impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to claim 1, characterized in that, The inner rubber reinforcing layer (13) is configured as five layers.
3. The impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to claim 1, characterized in that, The lifting structure (3) includes two sets of vertical rods (31), which are respectively installed at both ends of the top of the base plate (2). The top of the two sets of vertical rods (31) is jointly installed with a top plate (32). An electric telescopic rod (33) is fixedly inserted in the middle of the top plate (32). A lifting plate (34) is fixed at the bottom of the electric telescopic rod (33). A force sensor (36) is installed at the bottom of the lifting plate (34). The force sensor (36) is fixedly connected to the top of the impact head (4) through the top rod (37) at the bottom.
4. The impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to claim 3, characterized in that, The lifting plate (34) has movable sleeves (35) fixed on both sides for sliding cooperation with the vertical rod (31).
5. The impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to claim 3, characterized in that, A controller (6) is installed on the side of the base plate (2) near the lower steel plate (12), and the output end of the force sensor (36) is electrically connected to the input end of the controller (6).
6. The impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to claim 1, characterized in that, The positioning structure (5) includes four sets of fixing rods (51), which are respectively installed on the top of the base plate (2) near the bottom reserved hole (14). The outer side of the fixing rod (51) is slidably fitted with a sliding sleeve (52). The top of the fixing rod (51) is fixed with a stop block (53). A spring (54) is fixed between the stop block (53) and the sliding sleeve (52), and the spring (54) is fitted on the outer side of the fixing rod (51). The side of the sliding sleeve (52) near the lower steel plate (12) is fixed with a positioning rod (55) for engaging with the reserved hole (14) on the lower steel plate (12).
7. The impact testing device for steel plate buffer rubber blocks of engineering machinery cranes according to claim 6, characterized in that, The stop block (53) is fixedly connected to a limit rod (56) on the side away from the lower steel plate (12). The sliding sleeve (52) is fixedly connected to an elastic rope (57) on the side away from the lower steel plate (12). A collar (58) is fixed to one end of the elastic rope (57) away from the sliding sleeve (52) for engaging with the limit rod (56).