A rapid bolt strength testing device
By designing a rapid bolt strength testing device, which utilizes a conveyor belt, vibrating bed, and pressure system to automate bolt testing, the problem of slow bolt testing speed is solved, and production efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KOCH TECH CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-26
AI Technical Summary
Existing bolt strength testing methods are slow, affecting production efficiency, and it is difficult to test bolts of different models and specifications simultaneously.
Design a rapid bolt strength testing device that utilizes a conveyor belt, vibrating bed, automatic loading and unloading device, and pressure system to achieve automated bolt conveying and pressure testing, and uses electromagnetic pushing and hydraulic devices to achieve bolt positioning and strength testing.
It enables rapid testing of bolts of different models and specifications, saving testing time and manpower, and improving production efficiency.
Smart Images

Figure CN224286553U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bolt safety testing, and specifically designs a rapid bolt strength testing device. Background Technology
[0002] Bolts are a type of fastener consisting of a head and a threaded shank. They require a nut and are used to fasten two parts with through holes. As mechanical parts, bolts are cylindrical threaded fasteners that use a nut. Bolt strength is the most important parameter of bolt performance. If the bolt strength does not meet the standard, vibration or equipment movement during operation can cause machine damage, and in severe cases, even safety accidents. Currently, bolt strength testing is generally done by individual sampling, which is slow. An industrial production line may have thousands or even tens of thousands of bolts, and the testing process for bolts of different specifications and models consumes a lot of time and effort, seriously affecting production efficiency. Utility Model Content
[0003] To address the above technical problems, this utility model discloses a rapid bolt strength testing device, which can quickly test the strength of bolts of different models and specifications. The bolts can be arranged on a conveyor belt and the strength of each bolt can be tested at once, saving inspection manpower and time.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A rapid bolt strength testing device includes a testing platform, a bolt storage frame, a conveyor belt, a vibrating bed, a conveying device, an automatic loading and unloading device, a controller, a first fixed plate, and a pressure system. The bolt storage frame is located on one side of the testing platform and has a bolt outlet. The conveyor belt has a bolt fixing groove, with one end on the testing platform and the other end below the bolt outlet. The vibrating bed is located below the conveyor belt near the bolt storage frame. The conveying device includes a motor, a drive conveyor shaft, and a passive conveyor shaft, both located below the conveyor belt. The drive conveyor shaft is connected to the motor. The automatic loading and unloading device includes a pneumatic pusher, a push rod, and an electromagnetic push head. The pneumatic pusher is fixed to the testing platform, and the electromagnetic push head is located above the bolt fixing groove and connected to the pneumatic pusher via the push rod. The first fixed plate has fixing holes. The pressure system includes a second fixed plate, a pressure column, and a hydraulic device. The pressure column passes through the second fixed plate and is connected to the hydraulic device, which is connected to the controller via a control line.
[0006] Furthermore, there are multiple passive conveyor shafts, which are evenly distributed at the bottom of the conveyor belt.
[0007] Furthermore, the bottom of the first fixing plate is fixed to the testing table.
[0008] Furthermore, the motor, pneumatic pusher, and electromagnetic pusher head are connected to the controller via control lines.
[0009] Furthermore, the number of fixing holes is 3-8, and they are evenly distributed on the second fixing plate.
[0010] Furthermore, there are multiple sets of the hydraulic device and pressure column, with the spacing being the same as the spacing before the fixing hole.
[0011] Furthermore, the push rod has a push stroke of 3-20cm, which can be adjusted by the controller.
[0012] This utility model discloses a rapid bolt strength testing device. In use, bolts of different models and specifications are placed in a bolt storage frame and enter the fixed groove of a conveyor belt through the bolt outlet. Under the vibration of the vibrating bed, due to the difference in gravity between the bolt head and the screw, the bolt heads will dynamically arrange themselves at the top of the conveyor belt. The bolts move forward with the conveyor belt. After reaching the end of the conveyor belt, the electromagnetic push head is energized under the action of the controller and pushed forward by the push rod. Under the action of magnetic force, the bolt head is attracted and pushed forward, allowing the screw to pass through the fixing hole on the second fixing plate. After reaching the predetermined position, the hydraulic device is activated, pushing the pressure column to apply pressure to the screw, thereby detecting the bolt deformation pressure and obtaining the bolt strength data. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the bolt rapid detection device described in this utility model;
[0014] Figure 2 This is a schematic diagram of the pressure system described in this utility model;
[0015] Figure 3 This is a schematic diagram of the fixing plate described in this utility model.
[0016] Among them, 1-inspection table, 2-bolt storage frame, 3-conveyor belt, 4-vibrating bed, 5-transfer device, 6-automatic loading and unloading device, 7-controller, 8-first fixed plate, 9-pressure system, 10-bolt to be inspected, 201-bolt outlet, 301-bolt fixing groove, 501-motor, 502-active transmission shaft, 503-passive transmission shaft, 601-pneumatic pusher, 602-push rod, 603-electromagnetic pusher head, 801-fixing hole, 901-second fixed plate, 902-pressure column, 903-hydraulic device. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0018] like Figures 1-3 As shown, a rapid bolt strength testing device includes a testing platform 1, a bolt storage frame 2, a conveyor belt 3, a vibrating bed 4, a conveying device 5, an automatic loading and unloading device 6, a controller 7, a first fixing plate 8, and a pressure system 9. The bolt storage frame 2 is located on one side of the testing platform 1 and has a bolt outlet 201. The conveyor belt 3 has a bolt fixing groove 301. One end of the conveyor belt 3 is located on the testing platform 1, and the other end is located below the bolt outlet 201. The vibrating bed 4 is located below the conveyor belt 3, near the bolt storage frame 2. The conveying device 5 includes a motor 501, a driving conveying shaft 502, and a passive conveying shaft 503. Both the driving conveying shaft 502 and the passive conveying shaft 503 are located below the conveyor belt 3. The driving conveying shaft 502 is connected to the motor 501. The loading and unloading device 6 includes a pneumatic pusher 601, a push rod 602, and an electromagnetic push head 603. The pneumatic pusher 601 is fixed on the testing platform 1, and the electromagnetic push head 603 is located on the upper part of the bolt fixing groove 301 and is connected to the pneumatic pusher 601 through the push rod 602. The bottom of the first fixing plate 8 is fixed to the testing platform 1, and a fixing hole 801 is provided on the first fixing plate 8. The pressure system 9 includes a second fixing plate 901, a pressure column 902, and a hydraulic device 903. The pressure column 902 passes through the second fixing plate 901 and is connected to the hydraulic device 903. The hydraulic device 903 is connected to the controller 7 through a control line. The motor 501, the pneumatic pusher 601, and the electromagnetic push head 603 are connected to the controller 7 through a control line.
[0019] In some embodiments, there are multiple passive conveying shafts 503, which are evenly distributed at the lower part of the conveyor belt 3; there are 3-8 fixing holes 801, which are evenly distributed on the first fixing plate 8; there are multiple sets of hydraulic devices 903 and pressure columns 902, with the same spacing as the spacing before the fixing holes 801; the pushing stroke of the push rod 602 is 3-20cm, which can be adjusted by the controller 7.
[0020] 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 rapid bolt strength testing device, characterized in that, The system includes a testing platform (1), a bolt storage frame (2), a conveyor belt (3), a vibrating bed (4), a conveying device (5), an automatic loading and unloading device (6), a controller (7), a first fixing plate (8), and a pressure system (9). The bolt storage frame (2) is located on one side of the testing platform (1) and has a bolt outlet (201). The conveyor belt (3) has a bolt fixing groove (301). One end of the conveyor belt (3) is located on the testing platform (1), and the other end is located below the bolt outlet (201). The vibrating bed (4) is located on the lower part of the conveyor belt (3) near the bolt storage frame (2). The conveying device (5) includes a motor (501), an active conveying shaft (502), and a passive conveying shaft (503). Both the active conveying shaft (502) and the passive conveying shaft (503) are located on the conveyor belt. (3) At the bottom, the active transmission shaft (502) is connected to the motor (501). The automatic loading and unloading device (6) includes a pneumatic pusher (601), a push rod (602), and an electromagnetic push head (603). The pneumatic pusher (601) is fixed on the testing table (1). The electromagnetic push head (603) is located on the upper part of the bolt fixing groove (301) and is connected to the pneumatic pusher (601) through the push rod (602). The first fixing plate (8) is provided with a fixing hole (801). The pressure system (9) is provided with a second fixing plate (901), a pressure column (902), and a hydraulic device (903). The pressure column (902) passes through the second fixing plate (901) and is connected to the hydraulic device (903). The hydraulic device (903) is connected to the controller (7) through a control line.
2. The rapid bolt strength testing device according to claim 1, characterized in that, The number of passive conveyor shafts (503) is multiple, and they are evenly distributed at the bottom of the conveyor belt (3).
3. The rapid bolt strength testing device according to claim 1, characterized in that, The bottom of the first fixing plate (8) is fixed to the detection table (1).
4. The rapid bolt strength testing device according to claim 1, characterized in that, The motor (501), pneumatic pusher (601), and electromagnetic pusher head (603) are connected to the controller (7) via control lines.
5. The rapid bolt strength testing device according to claim 1, characterized in that, The number of fixing holes (801) is 3-8, and they are evenly distributed on the first fixing plate (8).
6. The rapid bolt strength testing device according to claim 1, characterized in that, There are multiple sets of the hydraulic device (903) and pressure column (902), and the spacing is the same as the spacing before the fixing hole (801).
7. The rapid bolt strength testing device according to claim 1, characterized in that, The push rod (602) has a push stroke of 3-20cm, which can be adjusted by the controller (7).