Novel trolley type flaw detector

Abstract

The utility model belongs to the technical field of flaw detectors, and discloses a novel trolley type flaw detector which comprises a device main body, four supporting rods are arranged at the top of the device main body, a same mounting seat is arranged at the tops of the four supporting rods, and a host is arranged at the top of the mounting seat. Through mutual cooperation of a concentric-square-shaped frame, a lifting block and a transmission gear, the device can be moved to the position over a rail when flaw detection operation needs to be carried out on the rail, the lifting block and the lifting bottom plate are driven by an electric telescopic rod to vertically descend and make contact with the rail, and in the vertical descending process of the lifting block, the lifting block is moved to the position over the rail; when the movable wheel is folded, the tooth groove in the lifting block drives the transmission gear to rotate, so that the transmission gear is matched with the tooth groove in the concentric-square-shaped frame to enable the concentric-square-shaped frame to drive the movable wheel to vertically ascend, the purpose of folding the movable wheel is achieved, the whole process only needs to be operated by one person, the operation process is simple and rapid, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flaw detectors, and in particular relates to a novel trolley-type flaw detector. Background Art

[0002] The flaw detector is mainly used to detect whether there are defects inside the machined parts, such as cracks, sand holes, pores, white spots, inclusions, etc., whether the weld is qualified, and whether there are hidden injuries, so as to determine whether the workpiece is qualified or not. It has been widely used in industrial production. There are many types of existing flaw detectors, but these flaw detectors have a common feature, that is, the entire flaw detector is an independent whole, and all work is completed on the instrument. When using it, the staff must hold the flaw detector equipment for a long time to operate, which is labor-intensive. Especially when performing flaw detection on rails, the work intensity is high, and inspection with a handheld flaw detector greatly reduces the detection efficiency.

[0003] Most of the hand-pushed flaw detectors in the prior art require the device to be moved to just above the rails, and then the moving wheels are manually retracted so that the track wheels come into contact with the rails before the flaw detection operation can be performed. The whole process is rather cumbersome and requires the help of others to hold the flaw detector to prevent it from falling to the ground, which is inconvenient to operate. Utility Model Content

[0004] The purpose of the utility model is to provide a novel trolley-type flaw detector to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel trolley-type flaw detector comprises a device body, four support rods are arranged on the top of the device body, the same mounting seat is arranged on the top of the four support rods, a main machine is arranged on the top of the mounting seat, a push rod is arranged on the device body, a control panel is arranged on the push rod, a transmission cavity is opened in the device body, a circular frame is slidably arranged in the transmission cavity, four connecting members distributed in a matrix and extending through the transmission cavity to the outside are arranged at the bottom of the circular frame, a moving wheel is rotatably installed on the connecting member, an electric telescopic rod is arranged on the top inner wall of the transmission cavity, a lifting block is installed on the action output shaft of the electric telescopic rod, a connecting block penetrating the transmission cavity and extending to the outside is arranged at the bottom of the lifting block, a lifting bottom plate is installed at the bottom of the connecting block, two mutually symmetrical track wheels are rotatably installed on the bottom of the lifting bottom plate, two mutually symmetrical transmission gears are rotatably installed in the transmission cavity, and tooth grooves meshing with the transmission gears are opened on the circular frame and the lifting block.

[0006] Preferably, two mutually symmetrical support frames are arranged in the transmission cavity, and the transmission gear is rotatably mounted on the support frames.

[0007] Preferably, the two support frames are respectively arranged on both sides of the lifting block and between the circular frame and the support frames.

[0008] Preferably, four guide rods are arranged in the transmission cavity, and the circular frame is slidably arranged on the four guide rods.

[0009] Preferably, a return spring is sleeved on the guide rod, one end of the return spring is mounted on the circular frame, and the other end of the return spring is mounted on the inner wall of the transmission cavity.

[0010] Preferably, a through hole adapted to the connecting piece and the connecting block is provided on the bottom inner wall of the transmission cavity.

[0011] Preferably, a buffer spring is sleeved on the support rod, one end of the buffer spring is mounted on the mounting seat, and the other end of the buffer spring is mounted on the device body.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, through the mutual cooperation of the circular frame, the lifting block and the transmission gear, the device can be moved to the top of the rail when it is necessary to perform flaw detection on the rail, and the lifting block and the lifting bottom plate are driven to vertically descend and contact the rail through the electric telescopic rod. In the process of vertical descent of the lifting block, the transmission gear is driven to rotate through the tooth groove on the lifting block, so that the circular frame can drive the moving wheel to rise vertically through the cooperation of the transmission gear and the tooth groove on the circular frame, thereby achieving the purpose of retracting the moving wheel. The whole process only needs one person to operate, and the operation process is simple and quick, which further improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a new type of trolley-type flaw detector proposed by the utility model;

[0015] Figure 2 This is a schematic cross-sectional structure diagram of a lifting block, a support rod, a track wheel and other structures of a new type of trolley-type flaw detector proposed by the utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the transmission gear, support rod and lifting block of a new type of trolley-type flaw detector proposed by the utility model;

[0017] Figure 4 The utility model provides a schematic top view of the cross-sectional structure of a guide rod and a device body of a novel trolley-type flaw detector.

[0018] In the figure: 1. Device body; 2. Moving wheel; 3. Push rod; 4. Control panel; 5. Mounting seat; 6. Main unit; 7. Support rod; 8. Buffer spring; 9. Track wheel; 10. Lifting base plate; 11. Connecting block; 12. Lifting block; 13. Reciprocating frame; 14. Transmission chamber; 15. Electric telescopic rod; 16. Transmission gear; 17. Tooth groove; 18. Support frame; 19. Connecting piece; 20. Guide rod; 21. Reset spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0020] Reference Figure 1-4 A novel trolley-type flaw detector includes a device body 1, four support rods 7 are arranged on the top of the device body 1, a same mounting seat 5 is arranged on the top of the four support rods 7, a host 6 is arranged on the top of the mounting seat 5, a push rod 3 is arranged on the device body 1, a control panel 4 is arranged on the push rod 3, a transmission cavity 14 is opened in the device body 1, a circular frame 13 is slidably arranged in the transmission cavity 14, four connecting members 19 distributed in a matrix and extending through the transmission cavity 14 to the outside are arranged at the bottom of the circular frame 13, and a movable member 19 is rotatably installed on the connecting member 19. The driving wheel 2 and the electric telescopic rod 15 are arranged on the inner wall of the top of the transmission cavity 14, and the lifting block 12 is installed on the action output shaft of the electric telescopic rod 15. The bottom of the lifting block 12 is arranged with a connecting block 11 that penetrates the transmission cavity 14 and extends to the outside. The bottom of the connecting block 11 is installed with a lifting base plate 10. Two mutually symmetrical track wheels 9 are rotatably installed at the bottom of the lifting base plate 10. Two mutually symmetrical transmission gears 16 are rotatably installed in the transmission cavity 14. The circular frame 13 and the lifting block 12 are provided with tooth grooves 17 that mesh with the transmission gears 16.

[0021] Through the cooperation of the circular frame 13, the lifting block 12 and the transmission gear 16, the device can be moved to the top of the rail when it is necessary to perform flaw detection on the rail, and the lifting block 12 and the lifting base plate 10 are driven to vertically descend and contact the rail through the electric telescopic rod 15. During the vertical descent of the lifting block 12, the transmission gear 16 is driven to rotate through the tooth groove 17 on the lifting block 12, so that the circular frame 13 can drive the moving wheel 2 to rise vertically through the cooperation of the transmission gear 16 and the tooth groove 17 on the circular frame 13, thereby achieving the purpose of retracting the moving wheel 2. The whole process only requires one person to operate, and the operation process is simple and fast, further improving work efficiency.

[0022] Specifically, in this embodiment, two mutually symmetrical support frames 18 are arranged in the transmission cavity 14 , and the transmission gear 16 is rotatably mounted on the support frames 18 .

[0023] The position of the transmission gear 16 can be defined by the arranged support frame 18 .

[0024] Specifically, in this embodiment, the two support frames 18 are respectively arranged on both sides of the lifting block 12 and arranged between the circular frame 13 and the support frames 18 .

[0025] Specifically, in this embodiment, four guide rods 20 are arranged in the transmission chamber 14, and the circular frame 13 is slidably arranged on the four guide rods 20. A return spring 21 is sleeved on the guide rod 20, one end of the return spring 21 is installed on the circular frame 13, and the other end of the return spring 21 is installed on the inner wall of the transmission chamber 14.

[0026] By arranging the guide rod 20 and the return spring 21, the moving direction of the circular frame 13 can be guided and limited. When the electric telescopic rod 15 drives the lifting block 12 to rise vertically after the work is completed, the elastic potential energy of the return spring 21 can drive the circular frame 13 to automatically reset. In daily implementation, the elastic potential energy of the return spring 21 can buffer the bumps generated during the movement to a certain extent.

[0027] Specifically, in this embodiment, a through hole matching the connecting member 19 and the connecting block 11 is opened on the bottom inner wall of the transmission cavity 14 .

[0028] Specifically, in this embodiment, a buffer spring 8 is sleeved on the support rod 7 , one end of the buffer spring 8 is mounted on the mounting seat 5 , and the other end of the buffer spring 8 is mounted on the device body 1 .

[0029] By arranging the buffer spring 8 and the support rod 7, the impact force generated during the movement of the device body 1 can be further buffered, thereby protecting the host 6 from damage due to severe bumps.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new type of trolley-type flaw detector, including a device body, characterized in that: Four support rods are arranged on the top of the device body, and the same mounting seat is arranged on the top of the four support rods, and a main machine is arranged on the top of the mounting seat. A push rod is arranged on the device body, and a control panel is arranged on the push rod. A transmission cavity is opened in the device body, and a circular frame is slidably arranged in the transmission cavity. Four connecting members distributed in a matrix and extending through the transmission cavity to the outside are arranged at the bottom of the circular frame, and a moving wheel is rotatably installed on the connecting member. An electric telescopic rod is arranged on the top inner wall of the transmission cavity, and a lifting block is installed on the action output shaft of the electric telescopic rod. A connecting block that penetrates the transmission cavity and extends to the outside is arranged at the bottom of the lifting block, and a lifting base plate is installed at the bottom of the connecting block. Two mutually symmetrical track wheels are rotatably installed on the bottom of the lifting base plate, and two mutually symmetrical transmission gears are rotatably installed in the transmission cavity. The circular frame and the lifting block are provided with tooth grooves meshing with the transmission gears.

2. A new type of trolley flaw detector according to claim 1, characterized in that: Two mutually symmetrical support frames are arranged in the transmission cavity, and the transmission gear is rotatably mounted on the support frames.

3. A new type of trolley flaw detector according to claim 2, characterized in that: The two support frames are respectively arranged on both sides of the lifting block and between the circular frame and the support frame.

4. The novel trolley-type flaw detector according to claim 1 is characterized in that: Four guide rods are arranged in the transmission cavity, and the circular frame is slidably arranged on the four guide rods.

5. A new type of trolley flaw detector according to claim 4, characterized in that: A return spring is sleeved on the guide rod, one end of the return spring is installed on the circular frame, and the other end of the return spring is installed on the inner wall of the transmission cavity.

6. The novel trolley-type flaw detector according to claim 1 is characterized in that: A through hole matching the connecting piece and the connecting block is provided on the inner wall of the bottom of the transmission cavity.

7. The novel trolley-type flaw detector according to claim 1 is characterized in that: A buffer spring is sleeved on the support rod, one end of the buffer spring is installed on the mounting seat, and the other end of the buffer spring is installed on the device body.

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