Coal mine paste filling pump reversing device

Abstract

The invention relates to a coal mine paste filling pump reversing device. A telescopic cylinder and a telescopic cylinder loading and unloading mechanism serve as a telescopic cylinder loading and unloading module, a telescopic cylinder connecting mechanism serves as a telescopic cylinder connecting module, and an S swing pipe connecting mechanism serves as an S swing pipe connecting module. The telescopic cylinder assembling and disassembling module is used for detachable installation of the telescopic cylinder, during installation, the cam is rotated to a remote point to make contact with the driving part, so that the driving part is driven to get away from the clamping part and get close to the clamping part to clamp the telescopic cylinder, during disassembling, the cam continues to be rotated, the driving part gets close under the action of the elastic piece, and then the clamping part is driven to get away from the clamping part to release the telescopic cylinder. The telescopic cylinder connecting module is used for being connected with a telescopic cylinder, and the S swing pipe connecting module is used for connecting the telescopic cylinder connecting module to an S swing pipe. The reversing device is divided into three independent modules, the three modules are assembled on an installation site and conveyed to a filling site after being assembled, and the three modules are assembled into a whole on the filling site, so that the reversing device is rapidly and conveniently assembled and disassembled.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine paste filling pumps, in particular to a reversing device of a coal mine paste filling pump. Background Art

[0002] With the continuous expansion of coal mining, safety and environmental protection issues in mines are receiving increasing attention. Paste filling technology, as an effective method for filling mine goafs, not only improves coal resource recovery rates but also effectively controls surface subsidence, protects groundwater systems, and reduces environmental pollution. Therefore, it is widely used in modern coal mining projects. In paste filling operations, the coal mine paste filling pump is one of the key equipment. It is responsible for transporting the paste filling material made of materials such as coal gangue, fly ash, and cement through pipelines to the designated area to effectively fill the goaf.

[0003] Figures 1-4 This is a structural diagram of an existing coal mine paste filling pump. Two sets of filling pump bodies 200 are installed on the filling pump frame 500. The filling pump body 200 is connected to the filling pump hopper 400 for storing and stirring the paste filling material through its discharge port 201. An S-shaped swing pipe 100 is rotatably installed in the filling pump hopper 400. The S-shaped swing pipe 100 is driven to swing by a reversing device. The reversing device includes two sets of telescopic cylinders 1. One end of the telescopic cylinder 1 is hinged to the filling pump hinge seat 3 fixed to the filling pump frame 500. 00, and the other end is hinged on the telescopic cylinder connecting block 600, and a connecting seat 101 is fixedly installed on the S swing tube 100. The telescopic cylinder connecting block 600 and the connecting seat 101 of the S swing tube 100 are fixedly connected circumferentially through a key shaft. The alternating telescopic movement of the two sets of telescopic cylinders 1 drives the telescopic cylinder connecting block 600 to swing, and the swing of the telescopic cylinder connecting block 600 drives the S swing tube 100 to swing. The S swing tube 100 reverses during the swinging process to change the sealed docking with the discharge port 201 of the two sets of filling pump bodies 200. When the filling pump is working, it first transports the paste filler into the filling pump hopper 400. At this time, the S swing pipe 100 is sealed and docked with the discharge port 201 of the first set of filling pump pump body 200, and the second set of filling pump pump body 200 pumps out the paste filler in the filling pump hopper 400. Then, the S swing pipe 100 is transformed into a sealed docking with the discharge port 201 of the second set of filling pump pump body 200 after swinging and reversing. The second filling pump pump body 200 pumps the paste filler pumped out previously into the S swing pipe 100. The cycle is repeated, and the S swing pipe 100 is alternately docked with the two sets of filling pump pump bodies 200. The two sets of filling pump pump bodies 200 work alternately to pump the paste filler into the S swing pipe 100. Since the discharge port of the S-swing pipe 100 is connected to the main pipeline of the filling system, the paste filling material pumped into the S-swing pipe 100 can enter the main pipeline of the filling system to be transported to the designated area for filling the goaf.

[0004] The reversing device of the above-mentioned coal mine paste filling pump is usually assembled with a single component as the minimum assembly unit during installation. It is assembled by professional technicians at the filling site by connecting components. The installation process is tedious and complicated, the working time is long, the work efficiency is low, the labor intensity is high, and the labor cost is high. The complicated installation process will inevitably increase the difficulty of disassembly, making the maintenance work based on disassembly and replacement of the reversing device difficult. In addition, the environment at the coal mine filling site is usually harsh and complex, such as small space, high coal dust, and humidity. The reversing device of the existing coal mine paste filling pump is difficult to meet the needs of rapid installation and disassembly at the filling site. Using the filling site as the first site for installation work also leads to a harsh and difficult working environment for the installers, further increasing the difficulty and danger of installation. The inconvenience of installing and disassembling the reversing device also has an adverse impact on the overall operating efficiency and maintenance cost of the coal mine paste filling pump equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a reversing device for a coal mine paste filling pump, so as to solve the technical problem that the reversing device for a coal mine paste filling pump is inconvenient to install and disassemble.

[0006] The technical problem solved by the present invention can be achieved by adopting the following solutions: A reversing device for a coal mine paste filling pump includes a telescopic cylinder, a telescopic cylinder loading and unloading mechanism for loading and unloading the telescopic cylinder, a telescopic cylinder connecting mechanism detachably connected to the telescopic cylinder, and an S-shaped oscillating pipe connecting mechanism detachably connected to the telescopic cylinder connecting mechanism and used for connecting to an S-shaped oscillating pipe; The telescopic cylinder loading and unloading mechanism includes a box body that can be hinged on the hinge seat of the filling pump, and a telescopic cylinder clamping part and a driving assembly for driving the telescopic cylinder clamping part are installed on the box body. The telescopic cylinder clamping part has a clamping part and a driving part. The driving assembly includes a rotating shaft rotatably installed on the box body, a cam fixed on the rotating shaft, and an elastic part installed between the driving part of the telescopic cylinder clamping part. When the rotating shaft rotates and drives the cam to rotate to its remote point and contacts the driving part of the telescopic cylinder clamping part, it can drive the driving part away, and then drive the clamping part closer to clamp the telescopic cylinder. At this time, the locking assembly can lock the cam and the driving part; after the locking assembly releases the cam and the driving part, when the cam rotates to its remote point and breaks away from the contact with the driving part, the driving part approaches under the action of the elastic part, and then drives the clamping part away to release the telescopic cylinder.

[0007] Furthermore: the locking assembly includes a driving member sleeved on the rotating shaft, the driving member and the rotating shaft are fixed in the circumferential direction and can slide along the axial direction of the rotating shaft, a return spring is provided between the driving member and the rotating shaft, one end of a connecting rod is hingedly connected to the driving member, and the other end of the connecting rod is hingedly connected to a locking slider, a sliding groove is provided at the remote point of the cam, a card slot corresponding to the sliding groove is provided on the driving part of the telescopic cylinder clamping member, and the locking slider is slidably installed in the sliding groove; When the cam rotates to its remote point and contacts the driving part of the telescopic cylinder clamping part, under the action of the return spring, the driving part moves toward the rotating shaft and drives the connecting rod to move. The movement of the connecting rod drives the locking slider to slide until the locking slider slides into the slot, thereby locking the cam and the driving part; when the driving part is lifted to move it back to the rotating shaft, the movement of the driving part drives the connecting rod to move, and the movement of the connecting rod drives the locking slider to slide until the locking slider slides out of the slot, thereby releasing the cam and the driving part.

[0008] Furthermore: the telescopic cylinder clamping member includes a connecting plate and a clamping plate fixedly mounted on one end of the connecting plate, the clamping plate being the clamping portion of the telescopic cylinder clamping member, and the telescopic cylinder can be clamped between the clamping surfaces of the clamping plate; The other end of the connecting plate is fixedly mounted with a driving plate with an L-shaped cross section. The driving plate includes a connecting section and a driving section that are fixedly connected to each other vertically. The connecting section is fixedly connected to the connecting plate. The driving section is the driving part of the telescopic cylinder clamp. The connecting section and driving section of the driving plates of the two telescopic cylinder clamps form an accommodating space for accommodating the driving assembly. The surface where the driving section contacts the remote point of the cam when the cam rotates is the driving surface. The driving surface is arranged opposite to the clamping surface of the clamping plate of the telescopic cylinder clamp where it is located, and the driving surfaces of the driving sections of the two telescopic cylinder clamps are arranged opposite to each other.

[0009] Furthermore: the telescopic cylinder connection mechanism includes a pendulum block, both ends of the pendulum block are respectively hinged with one end of a connecting rod, and the other end of the connecting rod is detachably fixedly connected to the piston rod of the telescopic cylinder.

[0010] Furthermore: the telescopic cylinder connection mechanism also includes a rocker arm fixedly mounted on the lower end of the rocker block, and a connecting key is fixedly provided on the rocker arm.

[0011] Further: the S-shaped rocker tube connection mechanism includes a connecting tube, the rocker rod can be inserted into the connecting tube, a key slot is provided in the connecting tube, and the connecting key of the rocker rod can be inserted into the key slot; a sleeve is fixedly installed at the lower end of the connecting tube, the sleeve is key-connected to the key shaft, and the key shaft is used to connect with the connecting seat key fixedly installed on the S-shaped rocker tube.

[0012] Furthermore: a limit plate is fixedly installed at the lower end of the rocker arm, and a limit slot is opened in the connecting cylinder below the key slot. The limit plate of the rocker arm can be inserted into the limit slot, and there is a certain distance between the limit slot and the bottom wall of the cylinder body of the connecting cylinder.

[0013] Furthermore: the portion of the connecting cylinder provided with the keyway and the limit slot is formed by splicing together two cylinder side walls, and the two cylinder side walls are detachably fixedly connected.

[0014] Furthermore: a sensor mounting plate is fixedly mounted on the rocker arm, and a limit switch sensor is respectively mounted at both ends of the sensor mounting plate. The reversing device also includes two triggering members for being mounted on the filling pump hopper or the filling pump frame. The two triggering members can respectively contact and trigger the limit switch sensors at both ends of the sensor mounting plate.

[0015] Furthermore: a clamping portion locking tooth is provided on the clamping portion of the telescopic cylinder clamping piece, and a telescopic cylinder locking tooth capable of meshing with the clamping portion locking tooth is fixedly provided on the outside of the cylinder body of the telescopic cylinder.

[0016] The present invention discloses a reversing device for a coal mine paste filling pump, which adopts a modular design. The telescopic cylinder and the telescopic cylinder loading and unloading mechanism serve as a telescopic cylinder loading and unloading module, the telescopic cylinder connecting mechanism serves as a telescopic cylinder connecting module, and the S-swing pipe connecting mechanism serves as an S-swing pipe connecting module. The telescopic cylinder loading and unloading module is used for loading and unloading the telescopic cylinder. During installation, the cylinder body of the telescopic cylinder is inserted into the housing of the telescopic cylinder loading and unloading mechanism and positioned between the clamping parts of the telescopic cylinder clamping member. The rotating shaft then rotates to drive the cam to its remote point to contact the driving part of the telescopic cylinder clamping member. The rotation of the cam drives the driving part away and then drives the clamping part closer to clamp the telescopic cylinder. During disassembly, the cam is rotated to its remote point to disengage from the driving part. The driving part approaches under the action of the elastic member, and then drives the clamping part away and releases the telescopic cylinder. The entire installation and disassembly process of the telescopic cylinder is convenient and quick. The telescopic cylinder connecting module is used to connect two sets of telescopic cylinders, and the S-swing pipe connecting module connects the telescopic cylinder connecting module to the S-swing pipe. The reversing device is thus decomposed into three independent modules, which are connected in a detachable manner. The three independent modules can be assembled at an installation site different from the filling site. The assembled modules are transported from the assembly site to the filling site. At the filling site, only the three modules need to be assembled into one, thereby achieving a quick and convenient installation of the reversing device at the filling site. While facilitating installation, it also reduces the difficulty of disassembly, making the reversing device easy to maintain. The reversing device of the present invention can meet the needs of rapid installation and disassembly at the coal mine paste filling site, which is conducive to improving the overall operating efficiency of the filling pump equipment and reducing the overall maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural diagram of an existing coal mine paste filling pump; Figure 2 yes Figure 1 A local enlarged view of point A; Figure 3 This is a schematic diagram of the structure of an existing coal mine paste filling pump from a top view; Figure 4 yes Figure 3 A partial enlarged view of point B; Figure 5 This is a schematic structural diagram of a coal paste filling pump equipped with the coal paste filling pump reversing device of the present invention; Figure 6 yes Figure 5 A partial enlarged view of point C; Figure 7 2. It is a schematic structural diagram of a coal paste filling pump installed with the reversing device of the coal paste filling pump of the present invention, viewed from a top view; Figure 8 yes Figure 7 A partial enlarged view of point D; Figure 9 It is a structural schematic diagram of the telescopic cylinder and the telescopic cylinder loading and unloading mechanism of the coal mine paste filling pump reversing device of the present invention; Figure 10 This is a front view of the telescopic cylinder and the telescopic cylinder loading and unloading mechanism of the coal paste filling pump reversing device of the present invention; Figure 11 This is a structural diagram of the telescopic cylinder and the telescopic cylinder loading and unloading mechanism of the reversing device of the coal mine paste filling pump of the present invention, with the upper cover of the box removed; Figure 12 yes Figure 11 A local enlarged view of point E; Figure 13 This is a structural schematic diagram of the telescopic cylinder and the telescopic cylinder loading and unloading mechanism of the coal paste filling pump reversing device of the present invention from another angle, with the upper cover of the box removed; Figure 14 yes Figure 13 A partial enlarged view of point F; Figure 15 yes Figure 10 Schematic diagram of the internal structure after cutting along the GG direction; Figure 16This is a schematic structural diagram of the telescopic cylinder clamping member of the reversing device of the coal mine paste filling pump of the present invention; Figure 17 yes Figure 10 A schematic diagram of the internal structure after sectioning along the HH direction, mainly showing the locking assembly; Figure 18 yes Figure 17 A local enlarged view of location I; Figure 19 It is a schematic structural diagram of the assembled telescopic cylinder, telescopic cylinder loading and unloading mechanism, and telescopic cylinder connecting mechanism of the reversing device of the coal mine paste filling pump of the present invention; Figure 20 This is a schematic diagram of the structure of the telescopic cylinder, telescopic cylinder loading and unloading mechanism, telescopic cylinder connecting mechanism and S-shaped swing pipe connecting mechanism of the coal mine paste filling pump reversing device of the present invention after assembly, omitting the key shaft in the S-shaped swing pipe connecting mechanism group. The key shaft is shown in FIG. Figure 6 middle; Figure 21 This is a schematic diagram of the structure of the assembled telescopic cylinder, telescopic cylinder loading and unloading mechanism, telescopic cylinder connecting mechanism, and S-shaped oscillating pipe connecting mechanism of the reversing device of the coal mine paste filling pump of the present invention. The key shaft in the S-shaped oscillating pipe connecting mechanism assembly is omitted, and the side wall of the connecting cylinder is in a disassembled state. Figure 22 This is a schematic diagram of the internal structure of the connecting cylinder of the reversing device of the coal mine paste filling pump of the present invention; Main parts and numbers: Telescopic cylinder: 1; piston rod: 11; cylinder body: 12; telescopic cylinder locking tooth: 121; Telescopic cylinder loading and unloading mechanism: 2; box: 21; upper cover: 211; telescopic cylinder clamping member: 22; clamping plate: 221; clamping surface: 2211; clamping portion locking tooth: 2212; driving plate: 222; connecting section: 2222; driving section: 2221; driving surface: 22211; connecting plate: 223; driving assembly: 23; rotating shaft: 231; cam: 232; elastic member: 233; locking assembly: 24; driving member: 241; return spring: 242; connecting rod: 243; locking slider: 244; sliding groove: 245; card slot: 246; handle: 247; Telescopic cylinder connection mechanism: 3; pendulum block: 31; connecting rod: 32; pendulum rod: 33; connecting key: 331; limit plate: 332; S-shaped swing pipe connection mechanism: 4; connecting cylinder: 41; keyway: 411; limit slot: 412; cylinder bottom wall: 413; cylinder side wall: 414; sleeve: 42; key shaft: 43; Sensor mounting plate: 51; limit switch sensor: 52; trigger: 53; S swing pipe: 100; connecting seat: 101; filling pump body: 200; discharge port: 201; filling pump hinge seat: 300; filling pump hopper: 400; filling pump frame: 500; telescopic cylinder connecting block: 600. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the objectives, technical solutions and advantages of the present invention, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] Figure 5-8 This is a structural diagram of a coal mine paste filling pump reversing device according to this embodiment, as shown in FIG. Figure 5-8 As shown, the reversing device for a coal paste filling pump includes two sets of telescopic cylinders 1. In this embodiment, the telescopic cylinders 1 are hydraulic cylinders. Each set of telescopic cylinders 1 is detachably fixedly connected to a telescopic cylinder loading and unloading mechanism 2, which is used for loading and unloading the telescopic cylinders 1. The two sets of telescopic cylinders 1 are connected by a telescopic cylinder connecting mechanism 3, which is detachably connected to the telescopic cylinders 1. The telescopic cylinder connecting mechanism 3 is also detachably connected to an S-shaped oscillating pipe connecting mechanism 4, which is used to connect to an S-shaped oscillating pipe 100. During operation, the alternating telescopic movement of the two sets of telescopic cylinders 1 causes the telescopic cylinder connecting mechanism 3 to oscillate, which in turn causes the S-shaped oscillating pipe connecting mechanism 4 to oscillate. The oscillation of the S-shaped oscillating pipe connecting mechanism 4 causes the S-shaped oscillating pipe 100 to oscillate. During this oscillation, the S-shaped oscillating pipe 100 switches direction to alternate its sealed connection with the discharge ports 201 of the two filling pump bodies 200. In this embodiment, the filling pump body 200 is a hydraulic pump.

[0021] like Figure 8-15As shown, the telescopic cylinder loading and unloading mechanism 2 includes a box body 21 that can be hinged on the filling pump hinge seat 300, the box body has an upper cover 211, the filling pump hinge seat 300 is fixedly mounted on the filling pump frame 500, the interior of the box body 21 is used to accommodate the cylinder body 12 of the telescopic cylinder 1, two telescopic cylinder clamping members 22 for clamping the telescopic cylinder 1 and a driving assembly 23 for driving the telescopic cylinder clamping member 22 to move are installed on the box body 21, the two telescopic cylinder clamping members 22 are slidably mounted on the box body 21, the telescopic cylinder clamping member 22 has a clamping portion 221 for clamping the telescopic cylinder 1 and a driving portion 2221 for driving the clamping portion 221 to move, the driving assembly 23 includes a rotating shaft 231 rotatably mounted on the box body 21, and a cam 232 is fixedly mounted on the rotating shaft 231 with the same rotating shaft, and an elastic member 233 is arranged between the driving portions 2221 of the two telescopic cylinder clamping members 22. In this embodiment, the elastic member 233 adopts a reset spring. When the telescopic cylinder 1 is installed using the telescopic cylinder loading and unloading mechanism 2, the rotation of the rotating shaft 231 drives the cam 232 to rotate. When the cam 232 rotates to its two remote points (the remote points of the cam are the two points on the cam that are farthest apart) and respectively contacts the driving part 2221 of a telescopic cylinder clamping member 22, it can drive the driving parts 2221 of the two telescopic cylinder clamping members 22 away from each other. When the driving parts 2221 move away from each other, the clamping parts 221 of the two telescopic cylinder clamping members 22 are driven closer together. In the process of the clamping parts 221 approaching each other, the telescopic cylinder 1 can be clamped. After the clamping part 221 clamps the telescopic cylinder 1, the locking assembly 24 can lock the cam 232 with the driving part 2221 of the telescopic cylinder clamping member 22.

[0022] When the telescopic cylinder 1 needs to be disassembled from the telescopic cylinder loading and unloading mechanism 2, the locking assembly 24 first releases the lock between the cam 232 and the driving part 2221, and rotates the rotating shaft 231 to rotate the cam 232 to its remote point to disengage from the contact with the driving part 2221 of the telescopic cylinder clamping member 22. Then, the driving parts 2221 of the two telescopic cylinder clamping members 22 approach each other under the action of the elastic member 233, thereby driving the clamping parts 221 of the two telescopic cylinder clamping members 22 away from each other and releasing the telescopic cylinder 1.

[0023] The coal mine paste filling pump reversing device of this embodiment adopts a modular design, with the telescopic cylinder 1 and the telescopic cylinder loading and unloading mechanism 2 serving as a telescopic cylinder loading and unloading module, the telescopic cylinder connecting mechanism 3 serving as a telescopic cylinder connecting module, and the S-shaped oscillating pipe connecting mechanism 4 serving as an S-shaped oscillating pipe connecting module. The telescopic cylinder loading and unloading module is used for the detachable installation of the telescopic cylinder 1. When installing the telescopic cylinder 1, the cylinder body 12 of the telescopic cylinder 1 is inserted into the housing 21 of the telescopic cylinder loading and unloading mechanism 2 and positioned between the clamping portions 221 of the two telescopic cylinder clamping members 22. The rotating shaft 231 then rotates to drive the cam 232 to rotate until its two remote points contact the driving portions 2221 of the two telescopic cylinder clamping members 22, respectively. The rotation of the cam 232 drives the driving portions 2221 of the two telescopic cylinder clamping members 22 away from each other, thereby driving the clamping portions 221 of the two telescopic cylinder clamping members 22 closer together, thereby clamping the telescopic cylinder 1. After the clamping portions 221 clamp the telescopic cylinder 1, the locking assembly 24 locks the cam 232 and the driving portion 2221. When disassembling the telescopic cylinder 1, the locking assembly 24 first releases the lock between the cam 232 and the drive portion 2221. The cam 232 then rotates until its two distal points disengage the drive portion 2221. The elastic member 233 then moves the drive portions 222 of the two telescopic cylinder clamps 22 closer together, driving the clamping portions 221 of the two telescopic cylinder clamps 22 apart and releasing the telescopic cylinder 1. This makes the entire installation and removal process of the telescopic cylinder 1 quick and easy. The telescopic cylinder connection module connects the two telescopic cylinders 1, while the S-shaped oscillating tube connection module connects the telescopic cylinder connection module to the S-shaped oscillating tube 100.

[0024] The reversing device is thus broken down into three independent modules, each connected in a detachable manner. These modules can be assembled at a different installation site than the filling site. The assembled modules are then transported from the assembly site to the filling site, where they only need to be reassembled into one piece. This allows for quick and convenient installation of the reversing device at the filling site. During assembly at the filling site, the housing 21 of the assembled telescopic cylinder loading and unloading module is hingedly attached to the filling pump hinge seat 300. The telescopic cylinders 1 of the two telescopic cylinder loading and unloading modules are connected using a telescopic cylinder connection mechanism 3 (telescopic cylinder connection module). This connection is then connected to an S-shaped swing pipe connection mechanism 4 (S-shaped swing pipe connection module), which in turn is connected to the S-shaped swing pipe 100.

[0025] Regarding the specific structure of the telescopic cylinder clamping member 22, as shown in FIG. Figure 16As shown, two telescopic cylinder clamps 22 are provided, each of which includes a connecting plate 223 and a clamping plate 221 fixedly mounted at one end of the connecting plate 223, wherein the clamping plate 221 is the clamping portion of the telescopic cylinder clamp 22, and the telescopic cylinder 1 can be clamped between the clamping surfaces 2211 of the clamping plates 221 of the two telescopic cylinder clamps 22; a driving plate 222 with an L-shaped cross-section is fixedly mounted at the other end of the connecting plate 223, wherein the driving plate 222 includes a connecting section 2222 and a driving section 2221, wherein one end of the connecting section 2222 is fixedly connected to the connecting plate 223, and the other end is fixedly connected to the driving section 2221, and the connecting section 2222 is perpendicular to the driving section 2221, and the driving section 2221 is the driving portion of the telescopic cylinder clamp 22. The connecting section 2222 and the driving section 2221 of the driving plate 222 of the two telescopic cylinder clamping members 22 form an accommodating space for accommodating the driving assembly 23. The driving assembly 23 is arranged in the accommodating space. When the cam 232 rotates, the surface where the driving section 2221 contacts the remote point of the cam 232 is the driving surface 22211. The driving surface 22211 is arranged opposite to the clamping surface 2211 of the clamping plate 221 of the telescopic cylinder clamping member 22 where it is located. The driving surfaces 22211 of the driving sections 2221 of the two telescopic cylinder clamping members 22 are arranged opposite to each other. Such arrangement enables that when the driving sections 2221 (i.e., driving parts) of the two telescopic cylinder clamping members 22 are driven by the cam 232 to move away from each other, the driving sections 2221 that are moving away drive the clamping plates 221 (i.e., clamping parts) of the two telescopic cylinder clamping members 22 to move closer together; and when the driving sections 2221 (i.e., driving parts) of the two telescopic cylinder clamping members 22 are moved closer together, the driving sections 2221 that are moving closer together drive the clamping plates 221 (i.e., clamping parts) of the two telescopic cylinder clamping members 22 to move away from each other.

[0026] In order to ensure the reliability and stability of the clamping plate 221 of the telescopic cylinder clamping member 22 when clamping the telescopic cylinder 1, and to prevent the telescopic cylinder 1 from accidentally escaping from the clamping member 22 during the operation of the filling pump, as shown in FIG. Figure 15 、 16 As shown, the clamping plate 221 of the telescopic cylinder clamp 22 is provided with a clamping portion locking tooth 2212 , and the cylinder body 12 of the telescopic cylinder 1 is fixedly provided with a telescopic cylinder locking tooth 121 that can mesh with the clamping portion locking tooth 2212 on the outside.

[0027] like Figure 11-14 As shown, the cam 232 in this embodiment is elliptical, and the two end points of the long axis of the elliptical cam 232 are the two remote points of the cam 232.

[0028] Regarding the specific structure of the locking assembly 24, as shown in FIG. Figure 17 、 18As shown, the locking assembly 24 includes a driving member 241 sleeved on the rotating shaft 231, the driving member 241 and the rotating shaft 231 are fixed circumferentially and can slide along the axial direction of the rotating shaft 231, and a return spring 242 is arranged between the driving member 241 and the rotating shaft 231, that is, one end of the return spring 242 is connected to the driving member 241 and the other end is connected to the top of the rotating shaft 231, and one end of a connecting rod 243 is hinged on each side of the outer surface of the driving member 241, and a locking slider 244 is hinged on the other end of the two connecting rods 243, and a sliding groove 245 is respectively provided at the two remote points of the cam 232, and the two locking sliders 244 are respectively slidably installed in a sliding groove 245, and a card groove 246 corresponding to the sliding groove 245 is provided on the driving section 2221 of the two telescopic cylinder clamping members 22.

[0029] When the cam 232 rotates to its two remote points and contacts the driving sections 2221 of the two telescopic cylinder clamping parts 22 respectively, under the action of the return spring 242, the driving part 241 moves toward the rotating shaft 231 and drives the two connecting rods 243 to move. The movement of the two connecting rods 243 drives each locking slider 244 to slide until part of the locking slider 244 slides into the slot 246. At this time, the locking slider 244, which is partially located in the slot 245 of the cam 232 and partially located in the slot 246 of the driving section 2221, locks the cam 232 with the driving section 2221. When the locking assembly 24 is locked, the cam 232 can no longer rotate relative to the driving section 2221. During the operation of the filling pump, the cam 232 will not rotate accidentally due to factors such as vibration, causing its remote point to accidentally lose contact with the driving section 2221, thereby causing the clamping plates 221 of the two telescopic cylinder clamping parts 22 to move away from each other, causing the telescopic cylinder 1 to accidentally fall off from the telescopic cylinder loading and unloading mechanism 2, thereby ensuring the reliability of the operation of the entire coal mine paste filling pump reversing device.

[0030] When the telescopic cylinder 1 needs to be disassembled from the telescopic cylinder loading and unloading mechanism 2, the locking assembly 24 first releases the lock between the cam 232 and the driving section 2221. The specific unlocking process is: lift the driving member 241 to make it move back to the rotating shaft 231. The movement of the driving member 241 drives the two connecting rods 243 to move. The movement of the two connecting rods 243 each drives a locking slider 244 to slide until the locking slider 244 slides out of the slot 246 and completely enters the slot 245 of the cam 232. At this time, the locking assembly 24 releases the lock between the cam 232 and the driving section 2221, and the cam 232 can rotate relative to the driving section 2221.

[0031] In order to facilitate the lifting of the driving member 241, as Figure 11-14As shown in Figures 17 and 18, a handle 247 is fixedly installed on the driving member 241. The driving member 241 can be lifted by the handle 247, or the driving member 241 can be rotated by the handle 247. The rotation of the driving member 241 drives the rotating shaft 231 to rotate and then drives the cam 232 to rotate.

[0032] like Figure 19 As shown, the telescopic cylinder connection mechanism 3 includes a pendulum block 31, each end of which is hingedly connected to one end of a connecting rod 32. The other end of the connecting rod 32 is removably fixedly connected to the piston rod 11 of the telescopic cylinder 1. The telescopic cylinder connection mechanism 3 also includes a pendulum rod 33 fixedly mounted at the lower end of the pendulum block 31, and a connecting key 331 is fixedly provided on the pendulum rod 33. In this embodiment, the pendulum block 31 and the connecting rod 32 are hingedly connected using a ball joint, and the connecting rod 32 is removably fixedly connected to the piston rod 11 via a threaded fastener.

[0033] like Figure 6 、 20 As shown in Figures 21, the S-shaped oscillating tube connection mechanism 4 includes a connecting tube 41, into which the oscillating rod 33 can be inserted. A key slot 411 is defined in the connecting tube 41, into which the connecting key 331 of the oscillating rod 33 can be inserted. A sleeve 42 is fixedly mounted at the lower end of the connecting tube 41. The sleeve 42 is key-connected to a key shaft 43, which is key-connected to a connecting seat 101 fixedly mounted on the S-shaped oscillating tube 100. This arrangement enables the piston rods 11 of the two telescopic cylinders 1 to drive the oscillating block 31 to swing when performing alternating telescopic motions. The swinging of the oscillating block 31 drives the oscillating rod 33 to swing. The swinging of the oscillating rod 33 drives the connecting tube 41 of the S-shaped oscillating tube connection mechanism 4 to swing. The swinging of the connecting tube 41 drives the connecting seat 101 mounted on the S-shaped oscillating tube 100 to swing via the sleeve 42 and key shaft 43, thereby driving the S-shaped oscillating tube 100 to swing.

[0034] In order to prevent the swing rod 33 from coming out of the connecting tube 41 when swinging, Figure 19-22 As shown, a limit plate 332 is fixedly mounted on the lower end of the swing rod 33, and a limit slot 412 is provided in the connecting tube 41 below the key slot 411. The limit plate 332 of the swing rod 33 can be snapped into the limit slot 412. When the size and total length of the telescopic cylinder 1 change, the length of the swing rod 33 of the telescopic cylinder connecting mechanism 3 also needs to be changed to adapt to the installation of the telescopic cylinder 1. Therefore, in order to make the telescopic cylinder connecting mechanism 3 adapt to the connection of telescopic cylinders 1 of different sizes and lengths, as shown in FIG. Figure 22 As shown, there is a certain distance between the limiting slot 412 and the bottom wall 413 of the connecting tube 41, that is, there is a certain installation space between the limiting slot 412 and the bottom wall 413 of the connecting tube 41 to accommodate the installation of rocker arms 33 of different lengths.

[0035] like Figure 20-22 As shown, to facilitate the detachable installation between the telescopic cylinder connection mechanism 3 and the S-shaped oscillating tube connection mechanism 4, the portion of the connecting tube 41 having the keyway 411 and the limiting slot 412 is composed of two cylindrical side walls 414. The two cylindrical side walls 414 are detachably fixedly connected, and the detachable fixed connection between the cylindrical side walls 414 can be achieved by threaded fasteners. When assembling the telescopic cylinder connection mechanism 3 and the S-shaped oscillating tube connection mechanism 4, the two cylindrical side walls 414 are first disassembled, the rocker arm 33 of the telescopic cylinder connection mechanism 3 is inserted into the connecting tube 41, and the connecting key 331 of the rocker arm 33 is inserted into the keyway 411 in the connecting tube 41. The disassembled cylindrical side walls 414 are then reassembled to complete the assembly between the telescopic cylinder connection mechanism 3 and the S-shaped oscillating tube connection mechanism 4.

[0036] In order to conveniently control the swing amplitude of the telescopic cylinder connection mechanism 3 and the S swing pipe connection mechanism 4, and further control the swing amplitude of the S swing pipe 100, as shown in FIG. Figure 5 、 6As shown in Figures 19-21, a sensor mounting plate 51 is fixedly mounted on the rocker arm 33. A limit switch sensor 52 is mounted at each end of the sensor mounting plate 51. Limit switch sensors are commonly used electrical switches for defining the extreme motion positions of a mechanical mechanism. The reversing device also includes two triggering members 53 mounted on the filling pump hopper 400. The two triggering members 53 can contact and trigger the limit switch sensors 52 at each end of the sensor mounting plate 51. The limit switch sensors 52 can be connected to a controller, which is in turn connected to the two telescopic cylinders 1. In this embodiment, when the piston rod 11 of the telescopic cylinder 1 on the left side contracts and the piston rod 11 of the telescopic cylinder 1 on the right side extends, the pendulum block 31, the pendulum rod 33 and the sensor mounting plate 51 on the pendulum rod 33 of the telescopic cylinder connecting mechanism 3 are driven to swing to the left. When the sensor mounting plate 51 swings to the left until the trigger member 53 on the left side contacts the limit switch sensor 52 on the left side of the sensor mounting plate 51, the trigger member 53 triggers the limit switch sensor 52 on the left side. The limit switch sensor 52 sends a trigger signal to the controller, and the controller controls the piston rod 11 of the telescopic cylinder 1 on the left side to extend and the piston rod 11 of the telescopic cylinder 1 on the right side to contract, thereby driving the pendulum block 31, the pendulum rod 33 and the sensor mounting plate 51 on the pendulum rod 33 of the telescopic cylinder connecting mechanism 3 to swing to the left. The rocker arm 33 and the sensor mounting plate 51 on the rocker arm 33 swing to the right. When the sensor mounting plate 51 swings to the right until the trigger member 53 on the right contacts the limit switch sensor 52 on the right side of the sensor mounting plate 51, the trigger member 53 triggers the limit switch sensor 52 on the right. The limit switch sensor 52 sends a trigger signal to the controller, and the controller controls the piston rod 11 of the telescopic cylinder 1 on the left to retract and the piston rod 11 of the telescopic cylinder 1 on the right to extend, thereby driving the rocking block 31, the rocker arm 33 and the sensor mounting plate 51 on the rocker arm 33 of the telescopic cylinder connecting mechanism 3 to swing to the left. This cycle is repeated to realize the reciprocating swing of the telescopic cylinder connecting mechanism 3 and the S-rocking tube connecting mechanism 4.

[0037] When assembling the coal mine paste filling pump reversing device of this embodiment, the telescopic cylinder loading and unloading module (including the telescopic cylinder 1 and the telescopic cylinder loading and unloading mechanism 2), the telescopic cylinder connection module (i.e., the telescopic cylinder connection mechanism 3), and the S-swing pipe connection module (i.e., the S-swing pipe connection mechanism 4) are first assembled at an installation site different from the filling site. The specific assembly process is as follows: When assembling the telescopic cylinder loading and unloading module, the cylinder body 12 of the telescopic cylinder 1 is inserted into the box body 21 of the telescopic cylinder loading and unloading mechanism 2 and is located between the clamping plates 221 (i.e., the clamping parts) of the two telescopic cylinder clamping members 22. Then, the rotating shaft 231 is rotated to drive the cam 232 to rotate to its two remote points to respectively contact the driving sections 2221 (i.e., the driving parts) of the driving plates 222 of the two telescopic cylinder clamping members 22. The rotation of the cam 232 drives the driving sections 2221 of the two telescopic cylinder clamping members 22 away from each other, thereby driving the clamping plates 221 (i.e., the clamping parts) of the two telescopic cylinder clamping members 22 close together and clamp. After the clamping plate 221 of the telescopic cylinder 1 clamps the telescopic cylinder 1, the return spring 242 causes the driving member 241 to move toward the rotating shaft 231, thereby driving the two connecting rods 243 to move. The movement of the two connecting rods 243 causes each locking slider 244 to slide until a portion of the locking slider 244 slides into the engaging groove 246. At this time, the locking slider 244, which is partially located in the sliding groove 245 of the cam 232 and partially located in the engaging groove 246 of the driving section 2221, locks the cam 232 with the driving section 2221. When the locking assembly 24 is locked, the cam 232 can no longer rotate relative to the driving section 2221. When assembling the telescopic cylinder connection module, a connecting rod 32 is hinged on each side of the pendulum block 31 of the telescopic cylinder connection mechanism 3, and the pendulum link 33, which is fixedly provided with a connecting key 331, is fixedly mounted below the pendulum block 31. When assembling the S-shaped oscillating pipe connection module, the sleeve 42 is fixedly installed below the connection cylinder 41 of the S-shaped oscillating pipe connection mechanism 4 , and the key shaft 43 is inserted into the sleeve 42 .

[0038] After the telescopic cylinder assembly and removal modules, the telescopic cylinder connection modules, and the S-shaped oscillating pipe connection modules are assembled, the two sets of telescopic cylinder assembly and removal modules, one set of telescopic cylinder connection modules, and one set of S-shaped oscillating pipe connection modules are transported to the filling site, where the reversing device is assembled. During assembly, the housings 21 of the telescopic cylinder assembly and removal mechanisms 2 of the two telescopic cylinder assembly and removal modules are hinged to the filling pump hinge base 300. The piston rods 11 of the telescopic cylinders 1 of the two telescopic cylinder assembly and removal modules are connected to one end of the connecting rod 32 of the telescopic cylinder connection mechanism 3 (i.e., the telescopic cylinder connection modules), completing the assembly between the telescopic cylinder assembly and removal modules and the telescopic cylinder connection modules. Next, disassemble the two side walls 414 of the connecting tube 41 of the S-shaped oscillating tube connecting mechanism 4 (and the S-shaped oscillating tube connecting module), insert the swing rod 33 of the telescopic cylinder connecting mechanism 3 into the connecting tube 41, and insert the connecting key 331 of the swing rod 33 into the keyway 411 in the connecting tube 41. Then, reassemble the two disassembled side walls 414 to complete the assembly between the telescopic cylinder connecting mechanism 3 and the S-shaped oscillating tube connecting mechanism 4. Insert the key shaft 43 of the S-shaped oscillating tube connecting mechanism 4 into the connecting seat 101 of the S-shaped oscillating tube 100 to complete the assembly between the S-shaped oscillating tube connecting mechanism 4 and the S-shaped oscillating tube 100.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A reversing device for a coal mine paste filling pump, comprising a telescopic cylinder (1), characterized in that: It also includes a telescopic cylinder loading and unloading mechanism (2) for loading and unloading the telescopic cylinder (1), a telescopic cylinder connecting mechanism (3) detachably connected to the telescopic cylinder (1), and an S-swing pipe connecting mechanism (4) detachably connected to the telescopic cylinder connecting mechanism (3) and used for connecting the S-swing pipe (100); The telescopic cylinder loading and unloading mechanism (2) comprises a housing (21) that can be hinged on a filling pump hinge seat (300), a telescopic cylinder clamping member (22) and a driving assembly (23) for driving the telescopic cylinder clamping member (22) to move are mounted on the housing (21), the telescopic cylinder clamping member (22) comprises a clamping portion (221) and a driving portion (2221), the driving assembly (23) comprises a rotating shaft (231) rotatably mounted on the housing (21), a cam (232) fixed on the rotating shaft (231), and an elastic member (233) mounted between the driving portion (2221) of the telescopic cylinder clamping member (22), the rotating shaft (231) driving the cam (232) to rotate. When the cam (232) moves to its remote point and contacts the driving portion (2221) of the telescopic cylinder clamping member (22), the driving portion (2221) can be driven to move away, thereby driving the clamping portion (221) to move closer and clamp the telescopic cylinder (1). At this time, the locking component (24) can lock the cam (232) and the driving portion (2221). After the locking component (24) releases the cam (232) from the driving portion (2221), when the cam (232) rotates to its remote point and is out of contact with the driving portion (2221), the driving portion (2221) moves closer under the action of the elastic member (233), thereby driving the clamping portion (221) to move away and releasing the telescopic cylinder (1).

2. The coal mine paste filling pump reversing device according to claim 1, characterized in that: The locking assembly (24) includes a driving member (241) sleeved on the rotating shaft (231), the driving member (241) and the rotating shaft (231) are circumferentially fixed and can slide along the axial direction of the rotating shaft (231), a return spring (242) is provided between the driving member (241) and the rotating shaft (231), one end of a connecting rod (243) is hinged on the driving member (241), and the other end of the connecting rod (243) is hinged on a locking slider (244), a sliding groove (245) is provided at a remote point of the cam (232), a card groove (246) corresponding to the sliding groove (245) is provided on the driving portion (2221) of the telescopic cylinder clamping member (22), and the locking slider (244) is slidably installed in the sliding groove (245); When the cam (232) rotates to its remote point and contacts the driving portion (2221) of the telescopic cylinder clamping member (22), under the action of the return spring (242), the driving member (241) moves toward the rotating shaft (231) and drives the connecting rod (243) to move. The movement of the connecting rod (243) drives the locking slider (244) to slide until the locking slider (244) slides into the slot (246), thereby locking the cam (232) and the driving portion (2221). When the driving member (241) is lifted to move it away from the rotating shaft (231), the movement of the driving member (241) drives the connecting rod (243) to move. The movement of the connecting rod (243) drives the locking slider (244) to slide until the locking slider (244) slides out of the slot (246), thereby releasing the cam (232) and the driving portion (2221).

3. The reversing device for a coal mine paste filling pump according to claim 1, characterized in that: The telescopic cylinder clamping member (22) comprises a connecting plate (223) and a clamping plate (221) fixedly mounted on one end of the connecting plate (223); the clamping plate (221) is a clamping portion of the telescopic cylinder clamping member (22); and the telescopic cylinder (1) can be clamped between clamping surfaces (2211) of the clamping plate (221); A driving plate (222) having an L-shaped cross section is fixedly mounted on the other end of the connecting plate (223). The driving plate (222) comprises a connecting section (2222) and a driving section (2221) that are fixedly connected to each other perpendicularly. The connecting section (2222) is fixedly connected to the connecting plate (223). The driving section (2221) is a driving portion of the telescopic cylinder clamping member (22). The connecting section (2222) and the driving section (2221) of the driving plate (222) of the two telescopic cylinder clamping members (22) are fixedly connected to each other. 221) encloses an accommodating space for accommodating the drive assembly (23); when the cam (232) rotates, the surface where the drive section (2221) contacts the remote point of the cam (232) is the drive surface (22211); the drive surface (22211) and the clamping surface (2211) of the clamping plate (221) of the telescopic cylinder clamping member (22) are arranged facing each other, and the drive surfaces (22211) of the drive sections (2221) of the two telescopic cylinder clamping members (22) are arranged facing each other.

4. The coal mine paste filling pump reversing device according to claim 1, characterized in that: The telescopic cylinder connection mechanism (3) comprises a pendulum block (31), the two ends of the pendulum block (31) are respectively hinged to one end of a connecting rod (32), and the other end of the connecting rod (32) is detachably fixedly connected to the piston rod (11) of the telescopic cylinder (1).

5. The coal mine paste filling pump reversing device according to claim 4, characterized in that: The telescopic cylinder connection mechanism (3) further comprises a swing rod (33) fixedly mounted on the lower end of the swing block (31), and a connection key (331) is fixedly provided on the swing rod (33).

6. The coal mine paste filling pump reversing device according to claim 5, characterized in that: The S-shaped swing tube connection mechanism (4) comprises a connection tube (41), the swing rod (33) can be inserted into the connection tube (41), a keyway (411) is provided in the connection tube (41), and a connection key (331) of the swing rod (33) can be inserted into the keyway (411); a sleeve (42) is fixedly mounted on the lower end of the connection tube (41), the sleeve (42) is key-connected to a key shaft (43), and the key shaft (43) is used to key-connect to a connection seat (101) fixedly mounted on the S-shaped swing tube (100).

7. The coal mine paste filling pump reversing device according to claim 6, characterized in that: A limit plate (332) is fixedly mounted on the lower end of the swing rod (33), and a limit slot (412) is provided in the connecting cylinder (41) below the key slot (411). The limit plate (332) of the swing rod (33) can be inserted into the limit slot (412), and a certain distance exists between the limit slot (412) and the bottom wall (413) of the connecting cylinder (41).

8. The reversing device for a coal mine paste filling pump according to claim 7, characterized in that: The portion of the connecting cylinder (41) provided with the keyway (411) and the limiting slot (412) is formed by splicing two cylinder side walls (414), and the two cylinder side walls (414) are detachably fixedly connected.

9. The coal mine paste filling pump reversing device according to claim 5, characterized in that: A sensor mounting plate (51) is fixedly mounted on the rocker arm (33), and a limit switch sensor (52) is mounted on each end of the sensor mounting plate (51). The reversing device further comprises two triggering members (53) for mounting on the filling pump hopper (400) or the filling pump frame (500), and the two triggering members (53) are capable of contacting and triggering the limit switch sensors (52) at each end of the sensor mounting plate (51).

10. The coal mine paste filling pump reversing device according to claim 1, characterized in that: A clamping portion locking tooth (2212) is provided on the clamping portion (221) of the telescopic cylinder clamping piece (22), and a telescopic cylinder locking tooth (121) capable of meshing with the clamping portion locking tooth (2212) is fixedly provided on the outside of the cylinder body (12) of the telescopic cylinder (1).

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