A crusher access door

Abstract

The application relates to the field of crushers, in particular to a maintenance door of a crusher, which comprises a crusher body, a maintenance door and a hydraulic push rod, the crusher body is provided with a maintenance opening, the maintenance door is rotationally matched with the crusher body, and the two ends of the hydraulic push rod are rotationally matched with the crusher body and the maintenance door respectively; the maintenance door is provided with a supporting assembly, the supporting assembly comprises a mounting seat, a plug-in connector and a supporting rod, the mounting seat is installed on the maintenance door, the mounting seat is provided with a rotating insertion hole and a plurality of locking insertion holes, the plurality of locking insertion holes are distributed in the circumferential direction around the axis of the rotating insertion hole, the plug-in connector is rotationally and pluggably matched with the rotating insertion hole, the plug-in connector is provided with a locking protrusion, the locking protrusion is pluggably matched with the locking insertion hole, and the supporting rod is installed on the plug-in connector. The application has the effect of reducing the situation that the maintenance door of the crusher is accidentally closed due to the failure of the hydraulic push rod during maintenance.

Description

Technical Field

[0001] This application relates to the field of crushers, and in particular to a maintenance door for a crusher. Background Technology

[0002] Among the current solid waste pretreatment equipment, the crusher is one of the most frequently used and heavily loaded pieces of solid waste. Larger items such as barrels and plates need to be processed by a large crusher before being fed into the pit. Due to its high usage frequency, some harder materials mixed in with the crushed material can easily jam the crusher blades, causing them to wear easily. Therefore, maintenance personnel enter the crusher through the maintenance door to inspect and clean it.

[0003] In existing technologies, inspection doors are opened and closed via several hydraulic push rods, and these doors must remain open during maintenance and cleaning to ensure smooth and safe operation. For crushers using top-opening inspection doors, when the door remains open, the hydraulic push plate must be kept in an upward-pushing position. Regarding the aforementioned technologies, the hydraulic push plate, which remains in an upward-pushing position for an extended period, bears a significant load. The maintenance door may accidentally close due to human error or hydraulic system malfunction, thus adversely affecting the smooth progress of maintenance work and posing certain potential hazards. Summary of the Invention

[0004] In order to reduce the occurrence of accidental closure of the crusher's maintenance door due to hydraulic push rod failure during maintenance, this application provides a crusher's maintenance door.

[0005] The technical solution for the maintenance door of a crusher provided in this application is as follows: A maintenance door for a crusher includes a crusher body, a maintenance door, and a hydraulic push rod. The crusher body has an inspection port, and the maintenance door is rotatably fitted to the crusher body. The maintenance door is used to open and close the inspection port, and the two ends of the hydraulic push rod are rotatably fitted to the crusher body and the maintenance door, respectively. The access door is equipped with a support assembly, which includes a mounting base, a connector, and a support rod. The mounting base is installed on the access door and has a rotating socket and several locking sockets. The locking sockets are circumferentially distributed around the axis of the rotating socket. The connector is rotatable and pluggable into the rotating socket. The connector has locking protrusions, the number of which is less than the number of locking sockets. The locking protrusions are pluggable into the locking sockets. The support rod is installed on the connector.

[0006] By adopting the above technical solution, after the hydraulic push rod pushes the maintenance door to rotate and open, the plug and locking protrusion are pulled out from the rotating socket and locking socket respectively. Then, the plug is rotated, and the support rod is rotated to the unfolded vertical state. Then, the plug is reinserted into the rotating socket, and the locking protrusion is inserted into the other locking socket. This allows the support column to provide additional support for the maintenance door, reducing the possibility of the crusher's maintenance door accidentally closing during maintenance due to hydraulic push rod failure.

[0007] Optionally, the opening of the locking socket is chamfered.

[0008] By adopting the above technical solution, it is convenient to reinsert the connector into the rotating socket after it has been pulled out, reducing the occurrence of situations where it is difficult to insert due to viewing angle or weight.

[0009] Optionally, the locking protrusion is ferromagnetic, and the locking socket is provided with a locking magnet inside.

[0010] By adopting the above technical solution, it is easy to attach and fix the connector and support rod when the maintenance door is rotated and opened, reducing the possibility of the support rod loosening and falling off due to the disturbance of the maintenance door.

[0011] Optionally, the support rod is threaded into a connector.

[0012] By adopting the above technical solution, the support height of the support rod can be adjusted by rotating it, which makes it easy to adjust the height of the support rod according to the ground conditions and reduces the occurrence of the support rod being too long or too short.

[0013] Optionally, a rubber head is installed at the bottom end of the support rod.

[0014] By adopting the above technical solution, it is easier to reduce the occurrence of scratching the ground at the bottom of the support rod or injuring other nearby workers.

[0015] Optionally, the mounting base is provided with an adjustment keyway, and the mounting base is installed on the access door by bolts passing through the adjustment keyway.

[0016] By adopting the above technical solution, it is easy to adjust the position of the mounting base according to the specifications of different crushers or the ground conditions, so that the support rod is less likely to interfere when it is retracted and extended.

[0017] Optionally, the inspection door is equipped with a fixing head, which has a fixing groove for accommodating the bottom end of the support rod.

[0018] By adopting the above technical solution, the support rod can be stably stored in the maintenance door when the maintenance door is rotated, which helps to reduce the situation where the support rod loosens and falls off due to the disturbance of the maintenance door.

[0019] Optionally, an elastic rubber strip is installed at the opening of the fixing groove.

[0020] By adopting the above technical solution, it is easy to securely confine the bottom end of the support column inside the fixing groove.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. After the hydraulic push rod pushes the maintenance door to rotate and open, pull the plug and locking protrusion out of the rotating socket and locking socket respectively. Then rotate the plug and rotate the support rod to the unfolded vertical position. Then reinsert the plug into the rotating socket and insert the locking protrusion into the other locking socket. This allows the support column to provide additional support for the maintenance door, reducing the chance of the crusher's maintenance door accidentally closing during maintenance due to hydraulic push rod failure. 2. It facilitates the reinsertion of the connector into the rotating socket after the connector has been pulled out, reducing the likelihood of difficulty in insertion due to viewing angle or weight. 3. It facilitates the magnetic attachment and fixation of the connector and support rod when the maintenance door is rotated and opened, reducing the possibility of the support rod loosening and falling off due to disturbance of the maintenance door; 4. By rotating the support rod, the support height of the support rod can be adjusted, which makes it easy to adjust the height of the support rod according to the ground conditions and reduces the occurrence of the support rod being too long or too short. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the unfolded implementation state of the inspection door according to an embodiment of this application.

[0023] Figure 2 This is an overall schematic diagram of the access door in an embodiment of this application.

[0024] Figure 3 This is an overall schematic diagram of the supporting components in an embodiment of this application.

[0025] Figure 4 This is a first exploded view of the supporting components in an embodiment of this application.

[0026] Figure 5 This is a second exploded view of the supporting components in an embodiment of this application.

[0027] Figure 6 This is an overall schematic diagram of the fixing head in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Crusher body; 101. Inspection port; 2. Inspection door; 3. Hydraulic push rod; 4. Support assembly; 41. Mounting base; 411. Adjustment keyway; 412. Rotary insertion hole; 413. Locking insertion hole; 414. Locking magnet; 42. Plug connector; 421. Plug part; 422. Locking protrusion; 43. Support rod; 431. Rubber head; 5. Fixing head; 501. Fixing groove; 51. Elastic rubber strip. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0030] This application discloses an inspection door 2 for a crusher. (Refer to...) Figure 1 The crusher's maintenance door 2 includes the crusher body 1, the maintenance door 2, and hydraulic push rods 3. The crusher body 1 has a maintenance opening 101, allowing maintenance personnel to enter the crusher body 1 for cleaning and maintenance. The maintenance door 2 is rotatably fitted to the crusher body 1, and its rotation opens and closes the maintenance opening 101. Two hydraulic push rods 3 are located on either side of the maintenance door 2. The two ends of each hydraulic push rod 3 are rotatably fitted to the crusher body 1 and the maintenance door 2, respectively, so that the extension or retraction of its piston rod drives the maintenance door 2 to rotate, thereby opening and closing the maintenance opening 101. The hydraulic push rods 3 are connected to an external hydraulic device (not shown in the figure), which supplies hydraulic oil to the hydraulic push rods 3.

[0031] Reference Figure 2 The inspection door 2 is equipped with two support components 4, which are distributed on both sides of the inspection door 2 along its width direction to provide stable support for the inspection door 2. (Refer to...) Figures 3 to 5 The support assembly 4 includes a mounting base 41, a connector 42, and a support rod 43. The mounting base 41 has two vertically extending adjustment keyways 411, located on opposite sides of the mounting base 41. The adjustment keyways 411 extend along the width of the access door 2, and the mounting base 41 is installed on the access door 2 by bolts (not shown in the figure) passing through the adjustment keyways 411, allowing for adjustment of the position of the mounting base 41 according to different crusher operating conditions.

[0032] Reference Figure 4 and Figure 5The mounting base 41 has a rotating insertion hole 412 and four locking insertion holes 413, both extending along the width of the access door 2. The rotating insertion hole 412 is cylindrical, and the four rotating insertion holes 412 are evenly distributed circumferentially around its axis. All four locking insertion holes 413 are connected to the rotating insertion hole 412. The connector 42 has a cylindrical insertion portion 421, which is adapted to the rotating insertion hole 412, allowing the connector 42 to be rotatably and pluggably engaged with the rotating insertion hole 412 via the insertion portion 421. The connector 42 also has two locking protrusions 422, the cross-sectional shape of which is adapted to each locking insertion hole 413, allowing the connector 42 to be pluggably and pluggably engaged with the locking insertion hole 413 via the locking protrusions 422. The angle of the connector 42 can be changed and locked by replacing the locking socket 413 that engages with the two locking protrusions 422. Furthermore, in this embodiment, the unit angle change of the connector 42 is 90°.

[0033] The opening of the locking socket 413 is chamfered to facilitate the reinsertion of the connector 42 after it has been pulled out of the rotating socket 412, reducing the likelihood of difficulty in insertion due to viewing angle or weight. The connector 42 is made of ferromagnetic material, making both the insertion portion 421 and the locking protrusion 422 ferromagnetic. In this embodiment, the connector 42 is made of an iron alloy. A locking magnet 414 is fixedly installed inside the locking socket 413 to attract the locking protrusion 422 that engages with the connector, preventing the connector 42 from easily loosening or falling off under slight external force. The top of the support rod 43 is threaded into the connector 42, allowing for adjustment of its support height by rotating it. This facilitates adjusting the height of the support rod 43 according to ground conditions, reducing the likelihood of the support rod 43 being too long or too short. A rubber head 431 is installed at the bottom end of the support rod 43 to reduce the occurrence of scratching the ground at the bottom end of the support rod 43 or injuring other nearby workers.

[0034] Reference Figure 2 The inspection door 2 is fixedly equipped with two fixing heads 5, which are distributed on both sides of the inspection door 2 along its width. Combined with... Figure 6 The fixing head 5 has a fixing groove 501, which is used to accommodate the bottom end of the support rod 43. Two elastic rubber strips 51 are fixedly installed at the opening of the fixing groove 501, so that the support rod 43 is stably stored in the inspection door 2 when the inspection door 2 is rotated, thereby reducing the possibility of the support rod 43 loosening and falling off due to the disturbance of the inspection door 2.

[0035] The implementation principle of the maintenance door of a crusher in this embodiment is as follows: After the hydraulic push rod 3 pushes the maintenance door 2 to rotate and open, the plug 42 and the locking protrusion 422 are pulled out from the rotating plug hole 412 and the locking plug hole 413 respectively. Then the plug 42 is rotated and the support rod 43 is rotated to the unfolded vertical state. Then the plug 42 is reinserted into the rotating plug hole 412 and the locking protrusion 422 is inserted into the other locking plug hole 413, so that the support column can provide additional support for the maintenance door 2, reducing the possibility of the maintenance door 2 of the crusher being accidentally closed during maintenance due to the failure of the hydraulic push rod 3.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An inspection door for a crusher, characterized in that: The device includes a crusher body (1), an inspection door (2), and a hydraulic push rod (3). The crusher body (1) has an inspection port (101). The inspection door (2) is rotatably fitted to the crusher body (1). The inspection door (2) is used to open and close the inspection port (101). The two ends of the hydraulic push rod (3) are rotatably fitted to the crusher body (1) and the inspection door (2), respectively. The inspection door (2) is provided with a support assembly (4), which includes a mounting base (41), a connector (42), and a support rod (43). The mounting base (41) is installed on the inspection door (2). The mounting base (41) has a rotating insertion hole (412) and a plurality of locking insertion holes (413). The plurality of locking insertion holes (413) are circumferentially distributed around the axis of the rotating insertion hole (412). The connector (42) is rotatably and pluggably fitted into the rotating insertion hole (412). The connector (42) is provided with locking protrusions (422). The number of locking protrusions (422) is less than the number of locking insertion holes (413). The locking protrusions (422) are pluggably fitted into the locking insertion holes (413). The support rod (43) is installed on the connector (42).

2. The maintenance door for a crusher according to claim 1, characterized in that: The opening of the locking hole (413) is chamfered.

3. The maintenance door for a crusher according to claim 1, characterized in that: The locking protrusion (422) is ferromagnetic, and the locking hole (413) is provided with a locking magnet (414).

4. The maintenance door for a crusher according to claim 1, characterized in that: The support rod (43) is threaded into the connector (42).

5. The maintenance door for a crusher according to claim 1, characterized in that: A rubber head (431) is installed at the bottom end of the support rod (43).

6. The maintenance door for a crusher according to claim 1, characterized in that: The mounting base (41) is provided with an adjustment keyway (411), and the mounting base (41) is installed on the inspection door (2) by bolts passing through the adjustment keyway (411).

7. The maintenance door for a crusher according to claim 1, characterized in that: The inspection door (2) is equipped with a fixing head (5), which has a fixing groove (501) for accommodating the bottom end of the support rod (43).

8. The maintenance door for a crusher according to claim 7, characterized in that: The groove of the fixing slot is fitted with an elastic rubber strip.

Images