Safety interlocking structure of toothed roll crusher access door

Abstract

This utility model discloses a safety interlocking structure for the maintenance door of a toothed roller crusher, comprising: a toothed roller crusher body, the surface of which is provided with several maintenance ports, and a rotating cover rotatably installed on the inner wall of each maintenance port; and a plug on one side of each rotating cover. In this utility model, rotating plates are fixedly installed on the surface of several interlocking rings, and several small holes are opened on the surface of each rotating plate. During use, the user can slide several locks onto the inner wall of several small holes, thereby restricting the position of each rotating plate in pairs. This prevents other users from rotating the plates in pairs, causing the interlocking rings to rotate and be removed from the inner wall of several annular grooves, further improving the safety factor.

Description

Technical Field

[0001] This utility model relates to the field of safety interlocking structure technology, specifically the safety interlocking structure of the maintenance door of a toothed roller crusher. Background Technology

[0002] Toothed roll crushers are a type of crushing equipment widely used in mining, metallurgy, building materials, chemical and other fields. During operation, the material enters from the feed inlet between two opposing toothed rolls and is crushed under the action of extrusion and shearing forces. As the toothed rolls rotate, the material gradually moves downward until it is crushed to the required particle size and then discharged from the discharge outlet.

[0003] Currently, after using a toothed roller crusher, the user needs to enter the maintenance door to perform maintenance. However, if someone else closes the maintenance door without the user's knowledge, the toothed roller crusher may detect the door's closure and start operating, potentially causing an accident. Therefore, a new type of safety interlock structure for the toothed roller crusher's maintenance door is needed to solve the above problem. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that after the user enters the maintenance door of the toothed roller crusher for maintenance, if someone closes the maintenance door without the user's knowledge, the toothed roller crusher may detect the door closing and start, which may cause an accident. This utility model provides a safety interlock structure.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] The safety interlock structure of the maintenance door of the toothed roller crusher includes: a toothed roller crusher body, the surface of which is provided with a number of maintenance ports, and the inner walls of the number of maintenance ports are rotatably equipped with rotating covers;

[0007] Each of the rotating covers has a plug on one side. The surface of the toothed roller crusher body is fixedly equipped with a number of limiting rings that are adapted to the plugs. The machine also includes an adjustment unit, which is used to install the plugs onto the surfaces of the rotating covers and control the plugs to move along the length of the rotating covers. The surfaces of the plugs are provided with annular grooves, and the inner walls of the annular grooves are slidably fitted with blocking rings.

[0008] Furthermore, the adjustment unit includes a plurality of mounting rails, each of which has a T-shaped block slidably inserted into its inner wall. The surfaces of the T-shaped blocks are respectively fixedly mounted to one end of a plurality of plugs, and the other ends of the plugs are respectively slidably inserted into the inner walls of the mounting rails. The unit also includes an installation unit and a limiting unit. The installation unit is used to install the plurality of mounting rails onto the surfaces of the plurality of rotating covers, and the limiting unit is used to limit the positions of the T-shaped blocks on the inner walls of the mounting rails.

[0009] Furthermore, the installation unit includes several installation edges respectively disposed on several mounting rail surfaces, each of the surfaces of the several installation edges being threaded with a mounting bolt, and the surfaces of the several mounting bolts being threaded into the surfaces of the several rotating covers.

[0010] Furthermore, the limiting unit includes a plurality of insertion holes respectively opened on the inner walls of the plurality of mounting rails, and grooves opened on the surfaces of the plurality of T-blocks. Insert rods are slidably inserted into the inner walls of the plurality of grooves, and the plurality of insert rods are slidably inserted into the inner walls of the plurality of insertion holes. It also includes a force-applying unit, which is used to apply a force to the plurality of insert rods to keep them in place.

[0011] Furthermore, the force-applying unit includes several sliders that are fixedly installed on one end of several insert rods. Guide protrusions are provided on both sides of several sliders. Guide grooves are opened on both sides of the inner wall of several slots. The surfaces of several guide protrusions are slidably inserted into the inner wall of several guide grooves. Springs are fixedly installed on the surface of several sliders. The other ends of several springs are fixedly installed on the inner wall of several slots.

[0012] Furthermore, the plurality of blocking rings includes a plurality of cross rings and a plurality of torsion springs, each of which is in a torsional state. The plurality of cross rings are rotatably connected to each other through the plurality of torsion springs. The plurality of cross rings are slidably inserted into the inner walls of the plurality of annular grooves. The plurality of blocking rings also includes a limiting unit, which is used to limit the relative angle of the plurality of cross rings in pairs.

[0013] Furthermore, a T-shaped rod is fixedly installed on the surface of several of the cross rings, and several torsion springs are slidably sleeved on the surface of several T-shaped rods, with their two ends fixedly installed on the surface of several T-shaped rods and the surface of several other cross rings.

[0014] Furthermore, the limiting unit includes several rotating plates that are fixedly installed on the surfaces of several cross rings, each rotating plate having several small holes on its surface, and also includes several locks, each lock being slidably sleeved on the inner wall of one of the small holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, several inspection ports are set on the surface of the toothed roller crusher body, and rotating covers are rotatably installed on the inner wall of each inspection port. In use, the user covers the rotating covers and adjusts the position of several plugs by adjusting the unit so that the plugs are inserted into the inner wall of several limiting rings. Then, several blocking rings are fitted onto the surface of several plugs to limit the rotation of the rotating covers. When the user opens the rotating covers and enters the inspection port for inspection, the user needs to slide the blocking rings onto the surface of several plugs. Afterwards, others will not be able to completely cover the rotating covers (after covering, the blocking rings will be attached to the surface of the limiting rings).

[0017] 2. In this utility model, rotating plates are fixedly installed on the surfaces of several interlocking rings, and several small holes are opened on the surfaces of several rotating plates. When in use, the user can slide several locks onto the inner walls of several small holes respectively, thereby restricting the position of several rotating plates in pairs. This prevents other users from rotating the plates in pairs and causing several interlocking rings to rotate in pairs, thus removing several interlocking rings from the inner walls of several annular grooves, further improving the safety factor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the present invention from another angle;

[0021] Figure 4 This is a partial cross-sectional view of a portion of the structure of this utility model from another angle;

[0022] Figure 5 This is a partial cross-sectional view of another part of the structure of this utility model from another angle.

[0023] In the diagram: 1. Toothed roller crusher body; 2. Inspection port; 3. Rotating cover; 4. Plug; 5. Limiting ring; 6. Adjusting unit; 61. Mounting rail; 62. T-block; 63. Mounting unit; 631. Mounting edge; 632. Mounting bolt; 64. Limiting unit; 641. Insertion hole; 642. Groove; 643. Insert rod; 644. Force application unit; 6441. Slider; 6442. Guide protrusion; 6443. Guide groove; 6444. Spring; 7. Annular groove; 8. Blocking ring; 81. Cross ring; 82. Torsion spring; 83. Limiting unit; 831. Rotating plate; 832. Small hole; 833. Lock; 9. T-bar. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] The safety interlock structure for the maintenance door of the toothed roller crusher provided in this embodiment is mainly used to solve the problem that when users need to enter the maintenance door to perform maintenance work after using the toothed roller crusher, if someone else closes the maintenance door without the user's knowledge, the toothed roller crusher may detect the door closing and start restarting, potentially causing an unexpected situation. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-5 Please provide a detailed explanation:

[0026] The safety interlock structure for the maintenance doors of a toothed roller crusher includes: a toothed roller crusher body 1 with several maintenance ports 2 on its surface; rotating covers 3 rotatably mounted on the inner walls of each maintenance port 2; and plugs 4 on one side of each rotating cover 3. In use, the user rotates each rotating cover 3 and adjusts the position of each plug 4 using an adjusting unit 6, so that when the rotating covers 3 are closed, the plugs 4 can be inserted into the inner walls of several limiting rings 5 ​​fixedly mounted on the surface of the toothed roller crusher body 1, thus enabling access to each maintenance port 2. The limiting position on one side of the opening 2 is also limited by the fact that annular grooves 7 are provided on the surface of several plugs 4. Therefore, during use, the user can slide and insert the blocking rings 8 into the inner walls of several annular grooves 7. When someone else pushes the rotating cover 3, the blocking rings 8 will abut against the surface of the limiting ring 5, so that the rotating cover 3 cannot be completely closed. The toothed roller crusher body 1 will not be able to detect that the rotating cover 3 is closed, and thus cannot start (the toothed roller crusher body 1 is generally equipped with a monitoring device to monitor whether the rotating cover 3 is closed. The specific device is generally a pressure sensor or other device, which is existing technology and will not be elaborated on here). The main components of the adjustment unit 6 are: several mounting rails 61 with T-shaped blocks 62 slidably inserted into their inner walls. In use, the user needs to install the mounting rails 61 onto the surfaces of several rotating covers 3 using the mounting unit 63, and then slide the T-shaped blocks 62, causing several plugs 4, which are fixedly installed on the surfaces of the T-shaped blocks 62, to move. After the plugs 4 are inserted into the inner wall of the limiting ring 5, the limiting unit 64 needs to limit the position of the T-shaped blocks 62 on the inner wall of the mounting rails 61. When the rotating cover 3 is opened, the limiting unit 64 also needs to limit the position of the T-shaped blocks 62. The positioning effectively prevents the T-shaped blocks 62 from sliding on the inner walls of the mounting rails 61 under the action of external forces. The main components of the blocking rings 8 are: several cross rings 81 and several torsion springs 82. The cross rings 81 are connected to each other by several torsion springs 82. In use, the user rotates the cross rings 81 in pairs, so that the cross rings 81 slide into the inner walls of the annular grooves 7 respectively. Then, the position of the cross rings 81 is limited by the limiting unit 83, which ensures that the cross rings 81 are installed at one end of the plugs 4 respectively.

[0027] By setting several inspection ports 2 on the surface of the toothed roller crusher body 1, and rotating covers 3 are rotatably installed on the inner wall of each inspection port 2, the user covers the rotating covers 3 during use, and adjusts the position of several plugs 4 by adjusting unit 6 so that the plugs 4 are inserted into the inner wall of several limiting rings 5. Then, several blocking rings 8 are respectively placed on the surface of the plugs 4 to limit the rotating covers 3. When the user opens the rotating covers 3 and enters the inspection port 2 for inspection, the user needs to slide the blocking rings 8 onto the surface of the plugs 4. Afterwards, others will not be able to completely cover the rotating covers 3 (after covering, the blocking rings 8 will be attached to the surface of the limiting rings 5).

[0028] By fixing rotating plates 831 to the surface of several cross rings 81, and opening several small holes 832 on the surface of several rotating plates 831, the user can slide several locks 833 onto the inner wall of several small holes 832 respectively, thereby restricting the position of several rotating plates 831 in pairs. This prevents other users from rotating plates 831 in pairs, causing several cross rings 81 to rotate in pairs, and removing several cross rings 81 from the inner wall of several annular grooves 7, thus further improving the safety factor.

[0029] like Figure 2 and Figure 3 As shown, in some embodiments, the main components of the mounting unit 63 are: a plurality of mounting bolts 632, and two mounting edges 631 are mounted on the surfaces of a plurality of mounting rails 61. In use, the user attaches the plurality of mounting rails 61 to the surfaces of a plurality of rotating covers 3, and then threads the surfaces of the plurality of mounting bolts 632 into the surfaces of the plurality of mounting edges 631, and then threads them into the surfaces of the plurality of rotating covers 3, thereby mounting the plurality of mounting rails 61 onto the surfaces of the plurality of rotating covers 3.

[0030] like Figure 4As shown, in some embodiments, the main components of the limiting unit 64 are: a plurality of slots 642 respectively opened on the surface of a plurality of T-blocks 62, and insert rods 643 slidably inserted into the inner walls of the plurality of slots 642; and two insertion holes 641 opened on the inner walls of the plurality of mounting rails 61. Therefore, when the user pushes the plurality of T-blocks 62 to slide on the inner walls of the plurality of mounting rails 61, the plurality of insert rods 643 will be moved respectively. And because of the action of the force application unit 644, the plurality of Each insertion rod 643 will abut against the inner wall of one of the mounting rails 61. Therefore, after moving above the corresponding insertion hole 641, the insertion rods 643 will insert into the inner wall of the corresponding insertion hole 641, thereby limiting the position of the T-shaped blocks 62 on the inner wall of the mounting rails 61 (the T-shaped blocks 62 are limited in two positions on the inner wall of the mounting rails 61: when the plug 4 is inserted into the inner wall of the limiting ring 5 and when the plug 4 is retracted into the inner wall of the mounting rail 61, corresponding to two insertion holes 641 respectively). The main components of the force-applying unit 644 are: several guide grooves 6443 respectively opened on both sides of the inner wall of several slots 642; a slider 6441 fixedly installed at one end of several insert rods 643; guide protrusions 6442 are provided on both sides of several sliders 6441; and the surfaces of several guide protrusions 6442 are slidably inserted into the inner wall of several guide grooves 6443. Furthermore, springs 6444 are fixedly installed on the surfaces of several sliders 6441. The other end of the spring 6444 is fixedly installed on the inner wall of several slots 642. Therefore, when in use, the user holds several sliders 6441 and pulls several sliders 6441 to compress several springs 6444. This will pull several insert rods 643, which are fixedly installed on the surface of several sliders 6441, out of the corresponding insertion holes 641. In other words, when the insert rod 643 moves above the insertion hole 641, it will also insert into the inner wall of the insertion hole 641 under the action of the elastic force of the spring 6444.

[0031] like Figure 5As shown, in some embodiments, the plurality of blocking rings 8 include a plurality of cross rings 81 and a plurality of torsion springs 82. The cross rings 81 are connected to each other in pairs by a plurality of torsion springs 82, each in a torsional state. In use, the user holds the cross rings 81 in pairs and rotates them, causing one end of each cross ring 81 to insert into the inner wall of a plurality of annular grooves 7. Finally, the user releases the cross rings 81. Under the action of the torsion springs 82, the blocking rings 8 formed by the pairs of cross rings 81 will fit onto the inner wall of the annular grooves 7. Because the relative angle between the pairs of cross rings 81 is limited by the limiting unit 83, the blocking rings 8 will not detach from the inner wall of the annular grooves 7. The torsion springs 82 are installed as follows: a plurality of T-shaped rods 9 are fixedly installed on the surface of a plurality of cross rings 81, and the surfaces of the T-shaped rods 9 are rotatably inserted into the surfaces of the other plurality of cross rings 81. On the surface, several torsion springs 82 are slidably sleeved on the surfaces of several T-shaped rods 9, with their ends fixedly installed on the surfaces of several T-shaped rods 9 and several cross rings 81. Therefore, when the user rotates several cross rings 81 in pairs, the user can drive several T-shaped rods 9 to rotate, thus achieving the rotation of several cross rings 81 in pairs. During this process, several torsion springs 82, which are all in a torsional state, drive several cross rings 81 to rotate, playing an auxiliary role in rotating several cross rings 81. The main components of the limiting unit 83 are: several rotating plates 831, which are fixedly installed on the surfaces of several cross rings 81, and several locks 833. In use, when the user rotates several rotating plates 831 in pairs, the user can drive several cross rings 81 to rotate in pairs. When several rotating plates 831 are in pairs, the user also needs to slide the locks 833 on the inner walls of several small holes 832 to achieve the pairwise limiting of several rotating plates 831.

[0032] The working process of this utility model is as follows:

[0033] First, when the user needs to open the rotating cover 3, the lock 833 needs to be opened first. After opening the lock 833, rotate the two rotating plates 831 so that the two cross rings 81 are disengaged from the annular groove 7. Hold the slider 6441 and the T-block 62, pull the slider 6441 to drive the plug 643 to disengage from the socket 641. Then slide the slider 6441 to drive the T-block 62 and the plug 4 to slide on the inner wall of the mounting rail 61, so that the plug 4 retracts into the inner wall of the mounting rail 61. Finally, rotate the rotating cover 3 to open the rotating cover 3.

[0034] Secondly, when the user needs to enter the access port 2 for operation, the two cross rings 81 need to be reinserted into the inner wall of the annular groove 7 and the lock 833 needs to be locked. With this setting, even if there is an external force to push the rotating cover 3, the rotating cover 3 will not be able to cover the inner wall of the access port 2 (the plug 4 will abut against the surface of the limit ring 5).

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety interlock structure for the maintenance door of a toothed roller crusher, characterized in that, include: The toothed roller crusher body (1) has several inspection ports (2) on its surface, and rotating covers (3) are rotatably installed on the inner walls of the several inspection ports (2). A plug (4) is provided on one side of each of the rotating covers (3). A number of limiting rings (5) adapted to the plugs (4) are fixedly installed on the surface of the toothed roller crusher body (1). An adjustment unit (6) is also included. The adjustment unit (6) is used to install the plugs (4) on the surface of the rotating covers (3) and control the plugs (4) to move along the length of the rotating covers (3). A ring groove (7) is opened on the surface of each plug (4). A blocking ring (8) is slidably inserted into the inner wall of each ring groove (7).

2. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 1, characterized in that: The adjustment unit (6) includes several mounting rails (61), and T-shaped blocks (62) are slidably inserted into the inner walls of the several mounting rails (61). The surfaces of the several T-shaped blocks (62) are respectively fixedly installed on one end of several plugs (4), and the other ends of the several plugs (4) are respectively slidably inserted into the inner walls of the several mounting rails (61). It also includes an installation unit (63) and a limiting unit (64). The installation unit (63) is used to install the several mounting rails (61) onto the surfaces of the several rotating covers (3), and the limiting unit (64) is used to limit the position of the several T-shaped blocks (62) on the inner walls of the several mounting rails (61).

3. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 2, characterized in that: The mounting unit (63) includes a plurality of mounting edges (631) respectively disposed on the surfaces of a plurality of mounting rails (61), and mounting bolts (632) are threaded into the surfaces of the plurality of mounting edges (631), and the surfaces of the plurality of mounting bolts (632) are threaded into the surfaces of the plurality of rotating covers (3).

4. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 2, characterized in that: The limiting unit (64) includes a plurality of insertion holes (641) respectively opened on the inner wall of a plurality of mounting rails (61), and a groove (642) is opened on the surface of a plurality of T-shaped blocks (62). Insert rods (643) are slidably inserted into the inner wall of a plurality of grooves (642). A plurality of insert rods (643) are slidably inserted into the inner wall of a plurality of insertion holes (641). The unit also includes a force application unit (644), which is used to apply a force to the plurality of insert rods (643) to maintain their original position.

5. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 4, characterized in that: The force-applying unit (644) includes several sliders (6441) that are fixedly installed on one end of several insert rods (643). Guide protrusions (6442) are provided on both sides of several sliders (6441). Guide grooves (6443) are provided on both sides of the inner wall of several slots (642). The surfaces of several guide protrusions (6442) are slidably inserted into the inner wall of several guide grooves (6443). Springs (6444) are fixedly installed on the surface of several sliders (6441). The other end of several springs (6444) is fixedly installed on the inner wall of several slots (642).

6. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 1, characterized in that: The plurality of blocking rings (8) include a plurality of cross rings (81) and a plurality of torsion springs (82) which are all in a twisted state. The plurality of cross rings (81) are connected to each other in pairs through the plurality of torsion springs (82). The plurality of cross rings (81) are respectively slidably inserted into the inner wall of the plurality of annular grooves (7). The plurality of blocking rings (81) also include a limiting unit (83), which is used to limit the relative angle of the plurality of cross rings (81) in pairs.

7. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 6, characterized in that: A T-shaped rod (9) is fixedly installed on the surface of several of the cross rings (81), and several torsion springs (82) are slidably sleeved on the surface of several of the T-shaped rods (9) and their two ends are fixedly installed on the surface of several of the T-shaped rods (9) and the surface of several other cross rings (81).

8. The safety interlock structure for the maintenance door of the toothed roller crusher according to claim 6, characterized in that: The limiting unit (83) includes several rotating plates (831) that are fixedly installed on the surfaces of several cross rings (81), and several small holes (832) are opened on the surfaces of the several rotating plates (831). It also includes several locks (833), and the several locks (833) are slidably sleeved on the inner walls of the several small holes (832).

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