Anti-loosening device for supporting pin shaft of torsion frame

Abstract

The utility model discloses an anti-loosening device for a supporting pin shaft of a torsion frame. The anti-loosening device comprises a pin shaft, the torsion frame and two connecting plates, wherein one end of the hinge pin is fixedly connected with a flange, the other end of the hinge pin sequentially penetrates through the two connecting plates, the hinge pin is sleeved with the torsion frame, the torsion frame is rotationally connected with the hinge pin through a bearing, the outer side of the flange of the hinge pin is connected with a long limiting block, and the outer side of the connecting plate away from the flange of the hinge pin abuts against a short limiting block. The long limiting block and the short limiting block are connected into a whole through the transverse connecting block and finally form the U-shaped limiting frame. Through the arrangement of the U-shaped limiting frame and the like, the probability of axial movement of the pin shaft can be effectively reduced, so that the probability of equipment damage and safety accidents caused by deflection of the torsion frame is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of roller crushing transmission torque support, in particular to a torque frame support pin anti-loosening device. Background Art

[0002] Roller crusher is a special equipment for crushing bulk materials. It can squeeze and crush the bulk flow from the upstream cooler into small pieces of materials, and then feed them to the next equipment continuously and evenly. In the prior art, the torque frame 6 in the transmission device of the roller crusher is connected by the pin shaft 2. The torque frame 6 rotates with the pin shaft 2 through the joint bearing 5. The two connecting plates 3 supporting the pin shaft 3 are fixed in the installation position. Figure 1 As shown, one end of the pin shaft 2 is fixedly connected to the rib 2.1, and the other end is connected to the shaft retaining ring 2.2 to prevent axial movement. However, in actual use, due to the large vibration and impact of the roller crusher transmission device, the shaft retaining ring is easily damaged and fails, and the anti-axial movement function also fails. If it is not discovered in time, the torque frame will swing and deflect, which is easy to squeeze the surrounding inspection posts and cause safety accidents, and also cause equipment damage accidents. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a torsion frame support pin anti-loosening device with a reasonable structural design.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A torque frame supporting a pin shaft anti-loosening device comprises a pin shaft, a torque frame and two connecting plates; wherein one end of the pin shaft is fixedly connected with a rib, and the other end of the pin shaft passes through the two connecting plates in sequence; the torque frame is sleeved on the pin shaft and is rotatably connected to the pin shaft through a bearing; and is characterized in that a long limit block is connected to the outer side of the pin shaft rib, and a short limit block is abutted against the outer side of the connecting plate away from the pin shaft rib, and the long limit block and the short limit block are connected as a whole through a transverse connecting block and finally form a U-shaped limit frame.

[0006] Preferably, the long limit block is connected to the transverse connection block by a hinge, and the rotation direction of the long limit block is to rotate away from or towards the center line of the long limit block with the hinge as the rotation center, and the long limit block and the pin shaft retaining edge are detachably connected by multiple bolts. This design facilitates the installation of the pin shaft.

[0007] Preferably, a pressure plate is tightened by bolts on the pin shaft and at the end away from the pin shaft retaining edge, and a return spring is limited between the pressure plate and the corresponding connecting plate, and the return spring is sleeved outside the pin shaft. This design is a secondary protection device for preventing the pin shaft from loosening. When the U-shaped limit frame fails, the return spring can act to effectively reduce the probability of the pin shaft loosening.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model can effectively reduce the probability of axial movement of the pin shaft through the arrangement of the U-shaped limit frame, thereby reducing the probability of equipment damage and safety accidents caused by the deflection of the torque frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the pin shaft anti-movement structure in the prior art;

[0011] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;

[0012] Figure 3 This is a schematic top view of the structure of the U-shaped limiting frame of the utility model;

[0013] Among them, 1. U-shaped limit frame, 1.1. long limit block, 1.2. short limit block, 1.3. horizontal connecting block, 2. pin shaft, 2.1. rib, 2.2. shaft retaining ring, 3. connecting plate, 4. spacer sleeve, 5. spherical bearing, 6. torque frame, 7. hinge, 8. reinforcement bolt, 9. return spring, 10. pressure plate, 11. tightening bolts. DETAILED DESCRIPTION

[0014] Now, the utility model is further described in conjunction with the specific drawings. The parts not described in detail below are all carried out according to the conventional technology in the field.

[0015] like Figure 2-3 As shown, a torque frame supporting pin anti-loosening device of the utility model comprises a pin 2, a torque frame 6 and two connecting plates 3; wherein the left end of the pin 2 is fixedly connected with a rib 2.1, pin holes for the pin 2 to pass through are provided on the two connecting plates 3 and the two pin holes on the two connecting plates 3 are coaxially arranged, the right end of the pin 2 passes through the two connecting plates 3 in sequence, and the two connecting plates 3 are fixed on the base seat; the torque frame 6 is sleeved on the pin 2 and the torque frame 6 is rotatably connected to the pin 2 through the joint bearing 5, and the torque frame 6 is located between the two connecting plates 3; outside the pin 2 and located between the left connecting plate 3 and the torque frame 6 A spacing sleeve 4 is provided at the place; a long limit block 1.1 can be fixedly connected to the outside of the retaining edge 2.1 of the pin shaft 2 by welding, or a long limit block 1.1 can be detachably connected by a plurality of high-strength reinforcing bolts 8; the long limit block 1.1 is hinged to the transverse connecting block 1.3 by a hinge 7, so that the long limit block 1.1 can rotate around the hinge position away from or close to the center line of the transverse connecting block 1.3, and a short limit block 1.2 is abutted against the outside of the connecting plate 3 on the right side, and the long limit block 1.1 and the short limit block 1.2 are connected as a whole through the transverse connecting block 1.3 and finally form a U-shaped limit frame 1.

[0016] In order to play a double protection role, the utility model is connected to a pressure plate 10 at the right end of the pin shaft 2 by tightening the bolt 11, and a return spring 9 is arranged on the outer surface of the pin shaft part between the pressure plate 10 and the right connecting plate and limited. After the U-shaped limit frame 1 fails, the return spring 9 continues to prevent the axial movement of the pin shaft.

[0017] When in use, when the torque frame 6 swings to the right to drive the joint bearing 5 and the pin 2 to move to the right, the rib of the pin 2 presses against the outer end surface of the connecting plate 3 on the left, and the connecting plate 3 blocks the pin 2 and the joint bearing 5 from moving to the right. When the torque frame 6 swings to the left to drive the joint bearing 5 and the pin 2 to move to the left, the short limit block of the U-shaped limit frame 1 presses against the outer end surface of the connecting plate 3 on the right, and the connecting plate 3 blocks the pin 2 and the joint bearing 5 from moving to the left. The utility model can effectively reduce the probability of the pin being loosened due to the axial movement of the pin, thereby reducing the probability of personal injury and equipment damage accidents, and has a certain promotion significance.

Claims

1. A torque frame supporting pin anti-loosening device, comprising a pin, a torque frame, and two connecting plates; wherein one end of the pin is fixedly connected with a rib, and the other end of the pin passes through the two connecting plates in sequence, the torque frame is sleeved on the pin and the torque frame is rotatably connected to the pin through a bearing, characterized in that: A long limit block is connected to the outer side of the pin shaft retaining edge, and a short limit block is abutted against the outer side of the connecting plate away from the pin shaft retaining edge. The long limit block and the short limit block are connected into one by a transverse connecting block and finally form a U-shaped limit frame.

2. The anti-loosening device for the torque frame support pin according to claim 1, characterized in that: The long limit block is connected to the transverse connection block through a hinge, and the rotation direction of the long limit block is to rotate away from or towards the center line of the long limit block with the hinge as the rotation center. The long limit block and the pin shaft retaining edge are detachably connected by multiple bolts.

3. The anti-loosening device for the torque frame support pin according to claim 1 or 2, characterized in that: A pressure plate is tightened by bolts on the pin shaft and at the end away from the pin shaft retaining edge. A return spring is limited between the pressure plate and the corresponding connecting plate, and the return spring is sleeved outside the pin shaft.

Images