A bolt pair inspection device

Abstract

The application provides a bolt pair inspection device, belonging to the technical field of construction machinery, comprising a fixing frame, a transmission device, a movable workbench, a motor and a forward-reverse switch, the transmission device is arranged at the left side of the top end of the fixing frame, the movable workbench is movably arranged at the right side of the fixing frame, the motor is arranged at the bottom of the fixing frame, the output end of the motor is connected with one end of the transmission device, the forward-reverse switch is arranged at the front side of the fixing frame, and the bottom end of the fixing frame is respectively provided with a plurality of self-locking universal wheels. The bolt pair inspection device is an electric mechanical detection device, has high inspection efficiency and high inspection accuracy, reduces the appearance of damaged bolt connection pairs in work use, is beneficial to improving work efficiency and reducing labor cost.

Description

Technical Field

[0001] This invention relates to the field of construction machinery technology, and in particular to a bolt pair inspection device. Background Technology

[0002] Fasteners and bolt assemblies, such as tower crane standard section connecting bolts and elevator standard section connecting bolts, are small, reusable parts. During use, the threads can become damaged. Therefore, these fasteners and bolt assemblies need to be inspected individually before each use to remove any damaged parts. In practice, fasteners and bolt assemblies are often stored in piles, and the nuts can rust, making them difficult to tighten. Therefore, workers need to inspect each one individually, placing undamaged fasteners and bolt assemblies into usable slots for lubrication before subsequent use.

[0003] In existing technologies, bolted connections are inspected manually. Manual inspection is labor-intensive, inefficient, and costly. Furthermore, inaccurate inspections can lead to damaged fasteners and bolts being used, impacting work progress and hindering efficiency. Therefore, a bolted connection inspection device is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a bolt assembly inspection device to solve the technical problems of low efficiency and inaccurate inspection of bolt assemblies by existing manual inspection methods.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A bolt assembly inspection device includes a fixed frame, a transmission device, a movable worktable, a motor, and a forward / reverse switch. The transmission device is located on the left side of the top of the fixed frame, the movable worktable is movably located on the right side of the fixed frame, the motor is located at the bottom of the fixed frame, and the output end of the motor is connected to one end of the transmission device. The forward / reverse switch is located on the front side of the fixed frame, and a plurality of self-locking casters are respectively provided at the bottom of the fixed frame.

[0007] Furthermore, the fixing frame includes an upper fixing frame, a lower fixing frame, and a fixing rod. The top end of the fixing rod is fixed to the bottom end of the upper fixing frame by welding. The lower fixing frame is fixed to the lower part of the fixing rod by welding. A self-locking caster wheel is fixedly connected to the bottom end of the fixing rod. A forward and reverse switch is set on one side between the upper fixing frame and the lower fixing frame.

[0008] Furthermore, the upper fixing frame includes a first vertical rod, a second vertical rod, a third vertical rod, a first horizontal rod, and a second horizontal rod. The two ends of the first vertical rod are respectively fixed to one end of the first horizontal rod and the second horizontal rod by welding. The two ends of the third vertical rod are respectively fixed to the other end of the first horizontal rod and the second horizontal rod by welding. A limit bolt is provided in the middle of the upper surface of the third vertical rod. The two ends of the second vertical rod are respectively fixed to the left side of the first horizontal rod and the second horizontal rod by welding, and the second vertical rod is set close to the first vertical rod.

[0009] Furthermore, a groove is provided on one side of the first crossbar and the second crossbar, and the groove on the first crossbar is arranged opposite to the groove on the second crossbar.

[0010] Furthermore, the transmission device includes a first pulley, a first sleeve, a second sleeve, a first bearing seat, and a second bearing seat. The first sleeve passes through the first bearing seat and the second bearing seat in sequence. One end of the first sleeve is fixed to the first pulley by welding, and the other end of the first sleeve is fixedly connected to one end of the second sleeve by a fixing pin. The first sleeve and the second sleeve are configured as hollow cylindrical structures with open ends, and the first sleeve and the second sleeve are configured as detachable devices.

[0011] Furthermore, the first bearing housing is fixedly connected to the middle of the first vertical rod by bolts, the second bearing housing is fixedly connected to the middle of the second vertical rod by bolts, a first bearing is provided between the first bearing housing and the first sleeve, and a second bearing is provided between the second bearing housing and the first sleeve.

[0012] Furthermore, a second pulley is fixedly connected to the output end of the motor, and the second pulley is connected to the first pulley via a belt.

[0013] Furthermore, the movable worktable includes two round rods, a support plate, and a clamp. The support plate is located in the middle between the two round rods and is fixed to the round rods by welding. The clamp is located in the middle of the top of the support plate, and the clamp 33 and the support plate 32 are detachable devices. One end of the two round rods is movably located in the groove of the first crossbar, and the other end of the two round rods is movably located in the groove of the second crossbar.

[0014] Furthermore, the top of the clamp is provided with a nut clamping port, the bottom of the clamp is fixedly connected to the support plate through the clamp base, and the clamp is fixedly connected to the middle of the clamp base by welding. The clamp base and the support plate are fixedly connected by bolts.

[0015] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0016] Compared with existing technologies, the bolt pair inspection device set in this invention is an electromechanical testing device, which has high inspection efficiency and high inspection accuracy, reduces the occurrence of damaged bolt connection pairs in operation, and helps to improve work efficiency and reduce labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the bolt pair inspection device of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing frame of the present invention;

[0019] Figure 3 This is a schematic diagram of the transmission device of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the mobile worktable of the present invention.

[0021] In the attached diagram, 1-fixed frame, 11-upper fixed frame, 111-first vertical rod, 112-second vertical rod, 113-third vertical rod, 114-first horizontal rod, 115-second horizontal rod, 116-slide groove, 12-lower fixed frame, 13-fixed rod, 2-transmission device, 21-first pulley, 22-first sleeve, 23-second sleeve, 24-first bearing seat, 25-second bearing seat, 26-fixing pin, 27-first bearing, 28-second bearing, 3-moving worktable, 31-round rod, 32-support plate, 33-clamp, 34-clamp base, 35-nut clamping port, 4-motor, 41-second pulley, 5-positive / reverse switch, 6-self-locking caster wheel, 7-bolt, 8-belt, 9-limit bolt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the invention, and these aspects of the invention can be implemented even without these specific details.

[0023] like Figure 1-4As shown, a bolt assembly inspection device includes a fixed frame 1, a transmission device 2, a movable worktable 3, a motor 4, and a forward / reverse switch 5. The transmission device 2 is located on the left side of the top of the fixed frame 1, the movable worktable 3 is movably located on the right side of the fixed frame 1, the motor 4 is located at the bottom of the fixed frame 1, and the output end of the motor 4 is connected to one end of the transmission device 2, driving the transmission device 2 to rotate. The forward / reverse switch 5 is located on the front side of the fixed frame 1, and several self-locking casters 6 are respectively provided at the bottom of the fixed frame 1. The bolt assembly inspection device of this invention is an electromechanical inspection device, which has high inspection efficiency and high inspection accuracy, reduces the occurrence of damaged bolt assemblies in operation, and helps to improve work efficiency and reduce labor costs.

[0024] like Figure 2 As shown, the fixing frame 1 includes an upper fixing frame 11, a lower fixing frame 12, and a fixing rod 13. The top end of the fixing rod 13 is fixed to the bottom end of the upper fixing frame 11 by welding. The lower fixing frame 12 is fixed to the lower part of the fixing rod 13 by welding. The self-locking caster 6 is fixedly connected to the bottom end of the fixing rod 13. The device is moved to a suitable working site for testing bolt connection pairs by using the self-locking caster 6. The forward and reverse switch 5 is set on one side between the upper fixing frame 11 and the lower fixing frame 12. The forward and reverse switch 5 is used to control the bolt pair inspection device to perform inspection or stop inspection. The upper fixed frame 11 includes a first vertical rod 111, a second vertical rod 112, a third vertical rod 113, a first horizontal rod 114, and a second horizontal rod 115. The two ends of the first vertical rod 111 are respectively welded to one end of the first horizontal rod 114 and the second horizontal rod 115. The two ends of the third vertical rod 113 are respectively welded to the other end of the first horizontal rod 114 and the second horizontal rod 115. A limit bolt 9 is provided in the middle of the upper surface of the third vertical rod 113. The limit bolt 9 is used to limit the movement of the worktable 3 and prevent the movement of the worktable 3 from detaching from the upper fixed frame 11. The two ends of the second vertical rod 112 are respectively welded to the left side of the first horizontal rod 114 and the second horizontal rod 115. The second vertical rod 112 is set close to the first vertical rod 111. The second vertical rod 112 is used to increase the strength of the upper fixed frame 11 on the one hand and to fix the transmission device 2 on the other hand. A slide groove 116 is provided on one side of the first crossbar 114 and the second crossbar 115, and the slide groove 116 on the first crossbar 114 and the slide groove 116 on the second crossbar 115 are arranged opposite to each other. The movable worktable 3 is movably arranged in the slide groove 116, so that the movable worktable 3 can move left and right in the slide groove 116.

[0025] like Figure 3As shown, the transmission device 2 includes a first pulley 21, a first sleeve 22, a second sleeve 23, a first bearing seat 24, and a second bearing seat 25. The first sleeve 22 passes through the first bearing seat 24 and the second bearing seat 25 in sequence. One end of the first sleeve 22 is fixed to the first pulley 21 by welding. The first pulley 21 drives the first sleeve 22 to rotate on the first bearing seat 24 and the second bearing seat 25. The other end of the first sleeve 22 is fixedly connected to one end of the second sleeve 23 by a fixing pin 26. When inspecting the bolt connection pair, the nut of the bolt connection pair is placed inside the other end of the second sleeve 23. The second sleeve 23 can clamp the nut of the bolt connection pair. The first sleeve 22 and the second sleeve 23 are set as hollow cylindrical structures with open ends, and the first sleeve 22 and the second sleeve 23 are set as detachable devices. To enable this device to inspect bolt connections of different sizes, the second sleeve 23 can be configured with a different inner diameter. When the inner diameter of the second sleeve 23 is smaller than that of the first sleeve 22, the second sleeve 23 is fitted inside the first sleeve 22, and the first sleeve 22 and the second sleeve 23 are then fixedly connected by a fixing pin 26. When the inner diameter of the second sleeve 23 is larger than that of the first sleeve 22, the first sleeve 22 is fitted inside the second sleeve 23, and the first sleeve 22 and the second sleeve 23 are then fixedly connected by a fixing pin 26. 23. Securely connect the two sleeves. If the inner diameter of the second sleeve 23 is much smaller or much larger than the inner diameter of the first sleeve 22, a spacer is provided between the first sleeve 22 and the second sleeve 23 so that the first sleeve 22 and the second sleeve 23 can be connected and fixed. To check bolt connection pairs of different sizes, the fixing pin 26 is removed, and a second sleeve 23 of the same size as the bolt is replaced. The first sleeve 22 and the second sleeve 23 are then fixedly connected by the fixing pin 26, so that the device is suitable for checking bolt connection pairs of different sizes.

[0026] like Figure 1 As shown, the first bearing housing 24 is fixedly connected to the middle of the first vertical rod 111 by bolts 7, and the second bearing housing 25 is fixedly connected to the middle of the second vertical rod 112 by bolts 7. A first bearing 27 is provided between the first bearing housing 24 and the first sleeve 22, and a second bearing 28 is provided between the second bearing housing 25 and the first sleeve 22. The output end of the motor 4 is fixedly connected to a second pulley 41, which drives the second pulley 41 to rotate. The second pulley 41 is connected to the first pulley 21 by a belt 8, and the second pulley 41 drives the first pulley 21 to rotate through the belt 8.

[0027] like Figure 4As shown, the movable worktable 3 includes two round rods 31, a support plate 32, and a clamp 33. The support plate 32 is located in the middle between the two round rods 31 and is used to support the clamp 33. The support plate 32 is fixed to the round rods 31 by welding. The clamp 33 is located in the middle of the top of the support plate 32 and is a detachable device from the support plate 32. One end of the two round rods 31 is movably disposed in the groove 116 of the first crossbar 114, and the other end of the two round rods 31 is movably disposed in the groove 116 of the second crossbar 115. The movable worktable 3 moves left and right in the groove 116 by means of the round rods 31. The top of the clamp 33 is provided with a nut clamping port 35, which is used to clamp the nut of the bolt connection pair. The bottom end of the clamp 33 is fixedly connected to the support plate 32 through the clamp base 34, and the clamp 33 is fixedly connected to the middle of the clamp base 34 by welding. The clamp base 34 and the support plate 32 are fixedly connected by bolts 7. In order to enable this device to inspect bolt connection pairs of different sizes, the bolts 7 connecting the clamp base 34 and the support plate 32 are removed, and the clamp 33 of the same size as the bolt connection pair is fixedly connected to the support plate 32, so that the device is suitable for inspecting bolt connection pairs of different sizes.

[0028] Working principle

[0029] First, push the movable worktable 3 to the left, close to the second sleeve 23. Place the nut of the bolt connection pair inside one end of the second sleeve 23, and place the bolt nut of the bolt connection pair inside the nut clamping port 35 of the clamp 33. Then start the device. The motor 4 drives the second pulley 41 to rotate. The second pulley 41 drives the first pulley 21 to rotate through the belt 8. The first pulley 21 drives the first sleeve 22 to rotate. The second sleeve 23, which is fixedly connected to the first sleeve 22, follows suit and rotates. The rotating second sleeve 23 drives the nut of the bolt connection pair to rotate. If the bolt connection pair is not damaged, when the forward / reverse switch 5 moves in the forward direction, the bolt screw of the bolt connection pair retracts, pushing the movable worktable 3 to the right. When the forward / reverse switch 5 moves in the reverse direction, the bolt screw of the bolt connection pair moves forward, pulling the movable worktable 3 to the left, and the nut returns to its original position. If the bolt connection pair is damaged, the nut of the bolt connection pair does not rotate, the bolt screw of the bolt connection pair neither retracts nor moves forward, and the movable worktable 3 does not move.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A bolt assembly inspection device, characterized in that: It includes a fixed frame (1), a transmission device (2), a movable worktable (3), a motor (4), and a forward / reverse switch (5). The transmission device (2) is located on the left side of the top of the fixed frame (1), the movable worktable (3) is movably located on the right side of the fixed frame (1), the motor (4) is located at the bottom of the fixed frame (1), and the output end of the motor (4) is connected to one end of the transmission device (2). The forward / reverse switch (5) is located on the front side of the fixed frame (1), and several self-locking casters (6) are respectively provided at the bottom of the fixed frame (1). The fixing frame (1) includes an upper fixing frame (11), a lower fixing frame (12) and a fixing rod (13). The top end of the fixing rod (13) is fixed to the bottom end of the upper fixing frame (11) by welding. The lower fixing frame (12) is fixed to the lower part of the fixing rod (13) by welding. The self-locking caster wheel (6) is fixedly connected to the bottom end of the fixing rod (13). The forward and reverse switch (5) is set on one side between the upper fixing frame (11) and the lower fixing frame (12). The upper fixing frame (11) includes a first vertical rod (111), a second vertical rod (112), a third vertical rod (113), a first horizontal rod (114), and a second horizontal rod (115). The two ends of the first vertical rod (111) are respectively fixed to one end of the first horizontal rod (114) and the second horizontal rod (115) by welding. The two ends of the third vertical rod (113) are respectively fixed to the other end of the first horizontal rod (114) and the second horizontal rod (115) by welding. A limit bolt (9) is provided in the middle of the upper surface of the third vertical rod (113). The two ends of the second vertical rod (112) are respectively fixed to the left side of the first horizontal rod (114) and the second horizontal rod (115) by welding, and the second vertical rod (112) is set close to the first vertical rod (111). A groove (116) is provided on one side of the first crossbar (114) and the second crossbar (115), and the groove (116) on the first crossbar (114) and the groove (116) on the second crossbar (115) are arranged opposite to each other. The transmission device (2) includes a first pulley (21), a first sleeve (22), a second sleeve (23), a first bearing seat (24), and a second bearing seat (25). The first sleeve (22) passes through the first bearing seat (24) and the second bearing seat (25) in sequence. One end of the first sleeve (22) is fixed to the first pulley (21) by welding. The other end of the first sleeve (22) is fixedly connected to one end of the second sleeve (23) by a fixing pin (26). The first sleeve (22) and the second sleeve (23) are set as hollow cylindrical structures with open ends. The first sleeve (22) and the second sleeve (23) are set as detachable devices. The movable workbench (3) includes two round rods (31), a support plate (32) and a clamp (33). The support plate (32) is located in the middle between the two round rods (31) and is fixed to the round rods (31) by welding. The clamp (33) is located in the middle of the top of the support plate (32) and is a detachable device with the support plate (32). One end of the two round rods (31) is movably located in the groove (116) of the first crossbar (114) and the other end of the two round rods (31) is movably located in the groove (116) of the second crossbar (115).

2. The bolt pair inspection device according to claim 1, characterized in that: The first bearing seat (24) is fixedly connected to the middle part of the first vertical rod (111) by bolts (7), and the second bearing seat (25) is fixedly connected to the middle part of the second vertical rod (112) by bolts (7). A first bearing (27) is provided between the first bearing seat (24) and the first sleeve (22), and a second bearing (28) is provided between the second bearing seat (25) and the first sleeve (22).

3. The bolt pair inspection device according to claim 1, characterized in that: The output end of the motor (4) is fixedly connected to a second pulley (41), and the second pulley (41) is connected to the first pulley (21) via a belt (8).

4. The bolt pair inspection device according to claim 1, characterized in that: The top of the clamp (33) is provided with a nut clamping port (35), the bottom of the clamp (33) is fixedly connected to the support plate (32) through the clamp base (34), and the clamp (33) is fixedly connected to the middle of the clamp base (34) by welding. The clamp base (34) and the support plate (32) are fixedly connected by bolts (7).

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