Bolt fault detection device for retarder

Abstract

The utility model provides a bolt fault detection device for a retarder, and belongs to the technical field of retarder bolt detection. The bolt fault detection device for the retarder comprises a detection structure and a retaining structure, the detection structure comprises a fixing frame, an upper detection piece and a lower detection piece, the lower detection piece is slidably connected to the interior of the fixing frame, the upper detection piece comprises a first guide head, the first guide head is slidably connected to the interior of the fixing frame, and the retaining structure is arranged in the fixing frame. A first spring is fixed to one end of the guide head, a first top plate is fixed to one end of the spring, a first pressure sensor is fixed to one side of the first top plate, and the retaining structure comprises a connecting piece and a retainer. According to the utility model, the situation that bolts are completely fixed is judged according to the fact that numerical values fed back by the pressure sensor I and the pressure sensor II are greatly different, and the two locking nuts are indirectly fixed together by utilizing the connecting frame, so that the locking nuts are prevented from rotating due to the vibration of a steel rail.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reduction top bolt detection, in particular to a bolt fault detection device for a speed reduction top. Background Art

[0002] The retarder, a crucial piece of equipment for vehicle speed regulation and parking, plays a vital role in achieving targeted speed regulation, improving station marshaling efficiency, and ensuring personnel safety. However, because the retarder is fixed to the rails at an angle using bolts and nuts, each rolling motion exerts a certain amount of force on the bolts. Over time, this can cause the bolts to bend, creating a gap between the retarder and the rails. This can cause the retarder to wobble during subsequent use, rendering it ineffective in its intended function.

[0003] Chinese Patent No. CN216805467U provides a deceleration bolt fault detection device, comprising a stop pad bracket and a pressure-sensitive contact probe. The stop pad bracket is a U-shaped hinged structure with an outwardly turned edge, capable of rotating about a central axis under external force. The pressure-sensitive contact probe is a piston mechanism with a resilient force. The stop pad bracket and pressure-sensitive contact probe, when assembled, form a resilient, mechanical flip trigger mechanism. This deceleration bolt fault detection device boasts a simple structure, low cost, high versatility, excellent stability, and intelligent functionality.

[0004] Currently, the existing bolt fault detection device for the retarder can detect whether the bolt is loose, but cannot well detect whether the bolt is bent, and has no good solution for preventing the nut from rotating due to vibration. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a bolt fault detection device for a retarder, aiming to improve the problem that the bolt fault detection device for a retarder cannot detect whether the bolt is bent and prevent the nut from rotating under normal circumstances.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a bolt fault detection device for a speed reduction top, comprising a detection structure and a withdrawal prevention structure.

[0008] The detection structure includes a fixed frame, an upper detection member and a lower detection member, the lower detection member is slidably connected to the inside of the fixed frame, the upper detection member includes a guide head 1, the guide head 1 is slidably connected to the inside of the fixed frame, a spring 1 is fixed to one end of the guide head 1, a top plate 1 is fixed to one end of the spring 1, a pressure sensor 1 is fixed to one side of the top plate 1, the retreat structure includes a connecting member and a stop member, the connecting member is arranged on one side of the fixed frame, and the stop member is rotatably connected to the inside of the connecting member.

[0009] In an embodiment of the present invention, a fixing bolt is fixed on one side of the fixing frame, a locking nut is threadedly connected to one side of the fixing bolt, and a steel rail is sleeved on one side of the fixing bolt.

[0010] In one embodiment of the present invention, a shell is fixed on the other side of the fixing frame, a sliding cylinder is slidably connected inside the shell, and a top cap is fixed on the end of the sliding cylinder.

[0011] In one embodiment of the present utility model, the lower detection part includes a guide head 2, the guide head 2 is slidably connected to the inside of the fixed frame, a spring 2 is fixed to the second end of the guide head, a top plate 2 is fixed to the second end of the spring, and a pressure sensor 2 is fixed to one side of the top plate 2.

[0012] In one embodiment of the present invention, the connecting member includes a connecting frame, a nut sleeve is rotatably connected inside the connecting frame, the nut sleeve is sleeved on one side of the locking nut, and a shift rod is fixed on one side of the nut sleeve.

[0013] In one embodiment of the present invention, the stopper includes a rotating rod, which is rotatably connected to the inside of the connecting frame. A fixing wire is threaded inside the rotating rod, a gear is fixed to the end of the rotating rod, and a rack is engaged with one side of the gear.

[0014] In one embodiment of the present invention, a connecting rod is fixed to the end of the rack, and the connecting rod is slidably connected to the inside of the connecting frame. A pressure plate is fixed to the end of the connecting rod, and an anti-slip pad is fixed to one side of the pressure plate.

[0015] The beneficial effect of the present invention is that the present invention is a bolt fault detection device for a deceleration top obtained by the above design. When in use, the guide head 1 and the guide head 2 are used to press against the rail, and then the elastic force of the spring 1 and the spring 2 are respectively applied to the pressure sensor 1 and the pressure sensor 2 through the top plate 1 and the top plate 2, so that the pressure values ​​of the pressure sensor 1 and the pressure sensor 2 are close. When one of the pressure values ​​deviates greatly, it can be determined that the fixing bolt is bent, which can cause the fixing frame to no longer be close to the rail. The gear is driven to rotate by the rotating rod, so that the rack can move, so that the connecting rod pushes the pressure plate to move, so that the anti-slip pad is pressed on the nut sleeve, preventing the nut sleeve from rotating, thereby preventing the locking nut from rotating, thereby ensuring that the two locking nuts will not rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a bolt fault detection device for a retarder provided by an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the upper detection member and the lower detection member of the bolt fault detection device for the retarder provided in the embodiment of the utility model;

[0019] Figure 3 A schematic diagram of a connecting piece of a bolt fault detection device for a retarder provided in an embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of a stopper of a bolt fault detection device for a retarder provided in an embodiment of the present utility model.

[0021] In the figure: 100-detection structure; 110-fixing frame; 111-fixing bolt; 112-locking nut; 113-rail; 114-housing; 115-sliding cylinder; 116-top cap; 120-upper detection part; 121-guide head 1; 122-spring 1; 123-top plate 1; 124-pressure sensor 1; 130-lower detection part; 131-guide head 2; 132-spring 2; 133-top plate 2; 134-pressure sensor 2; 200-retraction structure; 210-connecting part; 211-connecting frame; 212-nut sleeve; 213-shift rod; 220-stopper; 221-rotating rod; 222-fixing wire; 223-gear; 224-rack; 225-connecting rod; 226-pressure plate; 227-anti-slip pad. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0023] See also Figure 1-4 The utility model provides a technical solution: a bolt fault detection device for a deceleration top, including a detection structure 100 and a stop structure 200.

[0024] See also Figure 1-3 The detection structure 100 includes a fixed frame 110, an upper detection member 120 and a lower detection member 130. The upper detection member 120 and the lower detection member 130 are on a vertical line. The lower detection member 130 is slidably connected to the inside of the fixed frame 110. The upper detection member 120 includes a guide head 121. The guide head 121 will be pressed against the rail 113 under the elastic force of a spring 122. The guide head 121 is slidably connected to the inside of the fixed frame 110. A spring 122 is fixed at the end of the guide head 121. The spring 122 enables the pressure sensor 124 to be pressed against the inner wall of the fixed frame 110 through the elastic force. A top plate 123 is fixed at the end of the spring 122. The top plate 123 plays a transition connection role, thereby preventing the pressure applied by the end of the spring 122 to the pressure sensor 124 from being too concentrated. A pressure sensor 124 is fixed on one side of the top plate 123. The pressure sensor 124 can feed back the pressure value to the background.

[0025] A fixing bolt 111 is fixed to one side of the fixing frame 110, and a locking nut 112 is threadedly connected to one side of the fixing bolt 111. The locking nut 112 can make the fixing frame 110 close to one side of the rail 113. The rail 113 is sleeved on one side of the fixing bolt 111. A housing 114 is fixed to the other side of the fixing frame 110. A sliding cylinder 115 is slidably connected inside the housing 114. A top cap 116 is fixed to the end of the sliding cylinder 115. The housing 114, the sliding cylinder 115 and the top cap 116 constitute The lower detection part 130 is an important part of the deceleration top, which includes a guide head 131. The guide head 131 is slidably connected to the inside of the fixed frame 110. A spring 132 is fixed to the end of the guide head 131. A top plate 133 is fixed to the end of the spring 132. A pressure sensor 134 is fixed to one side of the top plate 133. The value fed back by the pressure sensor 134 is significantly different from the value fed back by the pressure sensor 124, so that the background personnel can determine that the fixing bolt 111 is twisted.

[0026] See also Figure 3-4 The anti-retraction structure 200 includes a connecting member 210 and a stopping member 220 . The connecting member 210 is arranged on one side of the fixing frame 110 , and the stopping member 220 is rotatably connected to the inside of the connecting member 210 .

[0027] The connecting member 210 includes a connecting frame 211, and a nut sleeve 212 is rotatably connected inside the connecting frame 211. The nut sleeve 212 can be sleeved on one side of the locking nut 112, so that when the locking nut 112 rotates, the nut sleeve 212 will drive the nut sleeve 212 to rotate. The nut sleeve 212 is sleeved on one side of the locking nut 112. A lever 213 is fixed on one side of the nut sleeve 212. The lever 213 can adjust the rotation of the nut sleeve 212 so that it can better sleeve with the fixed locking nut 112. The stopper 220 includes a rotating rod 221, which is rotatably connected to the inside of the connecting frame 211. The rotating rod 221 is internally threaded with a fixing wire 222. The fixing wire 222 The rotating rod 221 is rotated by pressing the end thereof against the surface of the connecting frame 211. A gear 223 is fixed to the end of the rotating rod 221. The gear 223 can drive the two racks 224 to move laterally. A rack 224 is engaged with one side of the gear 223. A connecting rod 225 is fixed to the end of the rack 224. The connecting rod 225 plays a transition connection role. The connecting rod 225 is slidably connected to the inside of the connecting frame 211. A pressure plate 226 is fixed to the end of the connecting rod 225. The pressure plate 226 plays the role of supporting the anti-slip pad 227. An anti-slip pad 227 is fixed to one side of the pressure plate 226. The anti-slip pad 227 can prevent the nut sleeve 212 from rotating through high friction.

[0028] Specifically, the working principle of the bolt fault detection device for the deceleration top is as follows: when in use, during installation, first insert the fixing bolt 111 into the rail 113, and then screw the locking nut 112 on the fixing bolt 111, so that the fixing frame 110 is close to one side of the rail 113, and then take the connecting frame 211, and rotate the nut sleeve 212 through the lever 213 so that the nut sleeve 212 can be smoothly sleeved on the locking nut 112, and then rotate the rotating rod 221, and the gear is driven by the rotating rod 221. 223 rotates, so that the rack 224 drives the connecting rod 225 to move. Through the movement of the connecting rod 225, the anti-slip pad 227 on the pressure plate 226 is tightly attached to the side of the nut sleeve 212, so that the nut sleeve 212 can no longer rotate. Then, the fixing wire 222 is tightened so that the fixing wire 222 presses against the surface of the connecting frame 211, thereby preventing the rotating rod 221 from rotating. Therefore, the two locking nuts 112 are connected together by the connecting frame 211, so that the locking nut 112 cannot rotate. , thereby preventing the fixing frame 110 from not being close to the rail 113 due to the rotation of the locking nut 112. During the test, when the fixing frame 110 is close to the rail 113, the guide head 121 and the guide head 2 131 are respectively pressed against the rail 113 under the elastic force of the spring 122 and the spring 2 132, and under the action of the elastic force, the top plate 123 and the top plate 2 133 will make the pressure sensor 1 124 and the pressure sensor 2 134 press against the inner wall of the fixing frame 110, thereby The second spring 134 applies pressure, so that the pressure sensor 1 124 and the pressure sensor 2 134 can transmit the compressed pressure value to the background. When the fixing bolt 111 is bent, the fixing frame 110 is bound to loosen, causing the elastic force of the spring 122 or the spring 2 132 to be further released, thereby changing the pressure applied to the pressure sensor 1 124 or the pressure sensor 2 134. Then the staff can judge whether the fixing bolt 111 is bent from the change in the value.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bolt fault detection device for a speed reducer, characterized in that: include A detection structure (100), the detection structure (100) comprising a fixing frame (110), an upper detection member (120) and a lower detection member (130), the lower detection member (130) being slidably connected inside the fixing frame (110), the upper detection member (120) comprising a guide head (121), the guide head (121) being slidably connected inside the fixing frame (110), a spring (122) being fixed at an end of the guide head (121), a top plate (123) being fixed at an end of the spring (122), and a pressure sensor (124) being fixed at one side of the top plate (123); A stop-retreat structure (200), the stop-retreat structure (200) comprising a connecting member (210) and a stop member (220), the connecting member (210) being arranged on one side of the fixing frame (110), and the stop member (220) being rotatably connected inside the connecting member (210).

2. A bolt fault detection device for a retarder according to claim 1, characterized in that: A fixing bolt (111) is fixed to one side of the fixing frame (110), a locking nut (112) is threadedly connected to one side of the fixing bolt (111), and a steel rail (113) is sleeved on one side of the fixing bolt (111).

3. A bolt fault detection device for a retarder according to claim 2, characterized in that: A housing (114) is fixed to the other side of the fixing frame (110), a sliding cylinder (115) is slidably connected inside the housing (114), and a top cap (116) is fixed to the end of the sliding cylinder (115).

4. A bolt fault detection device for a retarder according to claim 1, characterized in that: The lower detection member (130) comprises a second guide head (131), the second guide head (131) being slidably connected inside the fixing frame (110), a second spring (132) being fixed to the end of the second guide head (131), a second top plate (133) being fixed to the end of the second spring (132), and a second pressure sensor (134) being fixed to one side of the second top plate (133).

5. A bolt fault detection device for a retarder according to claim 2, characterized in that: The connecting member (210) comprises a connecting frame (211), a nut sleeve (212) being rotatably connected inside the connecting frame (211), the nut sleeve (212) being sleeved on one side of the locking nut (112), and a lever (213) being fixed on one side of the nut sleeve (212).

6. A bolt fault detection device for a retarder according to claim 5, characterized in that: The stopper (220) comprises a rotating rod (221), the rotating rod (221) being rotatably connected to the interior of the connecting frame (211), a fixing wire (222) being threadedly connected to the interior of the rotating rod (221), a gear (223) being fixed to the end of the rotating rod (221), and a rack (224) being meshed on one side of the gear (223).

7. A bolt fault detection device for a retarder according to claim 6, characterized in that: A connecting rod (225) is fixed to the end of the rack (224), the connecting rod (225) is slidably connected to the inside of the connecting frame (211), a pressing plate (226) is fixed to the end of the connecting rod (225), and an anti-slip pad (227) is fixed to one side of the pressing plate (226).

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