Scraper chain shaft taking device

Abstract

The utility model discloses a scraper chain shaft taking device which comprises a grease gun, an oil cylinder, an oil cylinder base, a push rod, a supporting rod, a guide cylinder and an oil cylinder leveling device. An oil cylinder base perpendicular to the oil cylinder is fixed to the fixed end of the oil cylinder, a first length adjusting screw rod is connected to the oil cylinder base in a threaded mode, the first length adjusting screw rod is parallel to the axis of the oil cylinder, and an oil cylinder leveling device is fixed to the side wall of the oil cylinder; the telescopic end of the oil cylinder is detachably connected with a push rod; the push rod is matched with a pin shaft of the scraper chain; an oil filling port of the oil cylinder is connected with an outlet of the grease gun; one end of the supporting rod is fixedly connected with a guide cylinder, a through groove is formed in the side wall of the guide cylinder, a supporting rod base is fixed to the other end of the supporting rod, and the side, opposite to the through groove, of the supporting rod base is a horizontal plane.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft take-off devices, in particular to a scraper chain shaft take-off device. Background Art

[0002] The conveyor scraper chain of the anchor miner will continue to wear during normal use. When the wear reaches a certain level, some parts may be damaged. The most common one is the breakage of the connecting pin. The broken pin must be replaced immediately, otherwise it may cause the chain to break, leading to serious consequences such as suspension of production and even personal injury. Of course, in addition to the breakage of the pin, if the wear exceeds the tolerance, it also needs to be replaced. Usually, replacing the scraper chain pin is a routine task for maintenance personnel, but because the fit between the pin and the chain plate hole is very tight (interference fit), coupled with the limited space in the conveyor tank, replacing the pin is a relatively laborious task.

[0003] At present, the main tools used to replace the pins on site are sledgehammers, jacks, push rods, hand winches, etc. The specific operation process is as follows: first, use the jack to support one side of the scraper chain, and then align the push rod with the pin on the other side. One person fixes the push rod, and the other person hits the head of the push rod with a sledgehammer, so that the damaged pin is slowly knocked out. Then, use a hand winch to loosen the entire scraper chain, and use a sledgehammer to knock the new pin into the hole of the chain plate. The whole replacement process requires the cooperation of two people. The hammering process is time-consuming and laborious, and there are safety hazards of being hit by objects. According to experience, it takes two people at least 2 hours to replace a pin. If you encounter a pin with a particularly tight fit, the replacement time will be longer. Utility Model Content

[0004] The utility model aims to provide a scraper chain shaft taking device.

[0005] The utility model is implemented by the following technical scheme: a scraper chain shaft taking device, which includes a grease gun, an oil cylinder, an oil cylinder base, a push rod, a support rod, a guide cylinder, and an oil cylinder leveling device;

[0006] The fixed end of the oil cylinder is fixed with the oil cylinder base which is arranged vertically with the oil cylinder, the oil cylinder base is screwed with a first length adjustment screw, the first length adjustment screw is arranged parallel to the axis of the oil cylinder, and the side wall of the oil cylinder is fixed with an oil cylinder leveling device;

[0007] The telescopic end of the oil cylinder is detachably connected to the push rod, and the push rod matches the pin of the scraper chain;

[0008] The oil filling port of the oil cylinder is connected to the outlet of the grease gun through an oil pipe;

[0009] One end of the support rod is fixedly connected with a guide cylinder, a through slot is provided on the side wall of the guide cylinder, and the other end of the support rod is fixed with a support rod base, and the side of the support rod base opposite to the through slot is a horizontal plane.

[0010] Furthermore, the cylinder leveling device includes multiple support plates and height adjustment screws. The support plates are fixedly connected to the side walls of the cylinder and are placed on the same horizontal plane as the axis of the cylinder. The height adjustment screws are screwed on the support plates and are arranged perpendicular to the axis of the cylinder.

[0011] Furthermore, the support rod base is threadedly connected with a second length adjusting screw.

[0012] Furthermore, the inner diameter of the guide cylinder is larger than the pin diameter of the scraper chain.

[0013] The utility model has the advantages that the oil cylinder, the push rod, the pin and the support rod are kept on the same axis by adjusting the first length adjustment screw of the oil cylinder base, the height adjustment screw of the oil cylinder and the second length adjustment screw of the support rod, thereby avoiding jamming caused by the eccentricity of the axes of the components during disassembly and assembly;

[0014] It is designed to solve the problems of low efficiency and potential safety hazards in replacing the scraper chain connecting pin. It uses a push rod and a cylinder to push the pin. Only one person is needed to replace the pin. The whole process takes no more than half an hour, which greatly improves the replacement efficiency and eliminates potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the use status of the utility model and the conveyor tank body;

[0018] In the figure: oil cylinder 1, oil cylinder base 2, first length adjusting screw 3, oil cylinder leveling device 4, support plate 4.1, height adjusting screw 4.2, horizontal plane 5, push rod 7, strut 8, scraper chain 9, pin 9.1, oil pipe 10, grease gun 11, guide cylinder 12, through groove 13, strut base 14, second length adjusting screw 15. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-2 As shown, the scraper chain shaft removal device includes a grease gun 11, an oil cylinder 1, an oil cylinder base 2, a push rod 7, a support rod 8, a guide cylinder 12, and an oil cylinder leveling device 4;

[0021] A cylinder base 2 which is vertically arranged with the cylinder 1 is fixed to the fixed end of the cylinder 1, a first length adjusting screw 3 is screwed on the cylinder base 2, and the first length adjusting screw 3 is arranged parallel to the axis of the cylinder 1, a cylinder leveling device 4 is fixed on the side wall of the cylinder 1, the cylinder leveling device 4 comprises a plurality of support plates 4.1 and a height adjusting screw 4.2, the support plate 4.1 is fixedly connected to the side wall of the cylinder 1, and is placed in the same horizontal plane 5 with the axis of the cylinder 1, a height adjusting screw 4.2 is screwed on the support plate 4.1, and the height adjusting screw 4.2 is arranged vertically with the axis of the cylinder 1, by adjusting the first length adjusting screw 3 of the cylinder base 2, the height adjusting screw 4.2 of the cylinder 1, and the second length adjusting screw 15 of the strut 8, the cylinder 1, the push rod 7, the pin shaft 9.1, and the strut 8 are kept on the same axis, so as to avoid jamming caused by the eccentricity of the axes of the components during disassembly and assembly.

[0022] The telescopic end of the oil cylinder 1 is detachably connected with a push rod 7, and a support rod 8 matching the pin 9.1 is used to fix the scraper chain 9 and the pin 9.1. At the same time, in order to facilitate the removal of the push rod 7, a groove can be set at the telescopic end of the oil cylinder 1, and the push rod 7 can be directly stuck in the groove, which is convenient for the removal and installation of the pin 9.1, reducing the need for the push rod 7 to match the pin 9.1 of the scraper chain 9 when changing the pin;

[0023] The oil filling port of the oil cylinder 1 is connected to the outlet of the grease gun 11 through the oil pipe 10, and the output pressure of the grease gun 11 is used to dismantle and install the pin shaft 9.1 of the scraper chain 9, reducing the workload of maintenance personnel and eliminating the safety hazards caused by hammering.

[0024] One end of the support rod 8 is fixedly connected to a guide cylinder 12, and a through groove 13 is opened on the side wall of the guide cylinder 12. The other end of the support rod 8 is fixed to a support rod base 14, and the support rod base 14 is screwed with a second length adjustment screw 15. The side of the support rod base 14 opposite to the through groove 13 is a horizontal plane 5. With the cooperation of the second length adjustment screw 15, the horizontal plane 5 ensures the stability of the support rod 8.

[0025] The inner diameter of the guide cylinder 12 is greater than the diameter of the pin shaft 9.1 of the scraper chain 9.

[0026] The invention is designed to solve the problems of low efficiency and potential safety hazards in replacing the connection pin shaft 9.1 of the scraper chain 9. The push rod 7 and the oil cylinder 1 are used to push the pin shaft 9.1. Only one person is required to complete the pin replacement. The whole process does not exceed half an hour, which greatly improves the replacement efficiency and eliminates potential safety hazards.

[0027] The specific operation process of this embodiment is as follows:

[0028] Step 1: Remove the damaged pin 9.1:

[0029] First, straighten the tail of the conveyor and try to make the entire scraper chain 9 in a straight line. Then, place the support rod 8 on the side of the pin shaft 9.1 that needs to be replaced, so that the front guide cylinder 12 of the support rod 8 is stuck under the pin shaft 9.1 and against the chain plate of the scraper chain 9, and the support rod base 14 is against the inner side plate of the conveyor tank body. Then, turn the two second length adjustment screws 15 on the support rod base 14 at the rear end of the support rod 8 to make the support rod 8 firmly against the inner side plate of the tank body. At the same time, pay attention to the fact that the axis of the support rod 8 and the axis of the pin shaft 9.1 must be kept coaxial;

[0030] Then, the oil cylinder base 2, the oil cylinder 1 and the push rod 7 are placed on the other side of the pin 9.1, and the height adjustment screw 4.2 on the leveling device and the first length adjustment screw 3 on the oil cylinder base 2 are adjusted by rotating the oil cylinder 1, so that the oil cylinder base 2, the oil cylinder 1, the push rod 7 and the pin 9.1 are kept on the same axis;

[0031] Connect the grease gun 11 to the oil cylinder 1 with the oil pipe 10, check the positions of the oil cylinder base 2, the oil cylinder 1, the push rod 7 and the pin 9.1 again, operate the handle of the grease gun 11 to discharge the internal grease and enter the rodless cavity of the oil cylinder 1, and the extended piston rod of the oil cylinder 1 pushes the pin 9.1 until it is completely separated from the chain plate and falls into the through groove 13 of the guide cylinder 12 at the front end of the support rod 8;

[0032] Finally, loosen the oil pipe 10 to release the pressure of the oil cylinder 1, then loosen the second length adjustment screw 15 on the support rod 8 and the height adjustment screw 4.2 on the oil cylinder base 2, remove the oil cylinder 1 and fully retract the piston rod by external force.

[0033] Step 2 Install the new pin 9.1:

[0034] In this step, the push rod 7 is replaced by a new pin 9.1. First, place the new pin 9.1 in the groove of the piston rod head of the cylinder 1, and then put the remaining components in the order of the first step. At the same time, pay attention to the cylinder 1, the pin 9.1, the chain plate hole, and the support rod 8 are on the same axis. After connecting the grease gun 11, operate it until the pin 9.1 is completely pushed into the chain plate hole and reaches the predetermined position, then remove all components and the replacement is completed.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The scraper chain shaft removal device is characterized by: It includes a grease gun, an oil cylinder, an oil cylinder base, a push rod, a support rod, a guide cylinder, and an oil cylinder leveling device; The fixed end of the oil cylinder is fixed with the oil cylinder base which is vertically arranged with the oil cylinder, the oil cylinder base is threaded with a first length adjustment screw, the first length adjustment screw is arranged parallel to the axis of the oil cylinder, and the oil cylinder leveling device is fixed on the side wall of the oil cylinder; The telescopic end of the oil cylinder is detachably connected to the push rod, and the push rod matches the pin of the scraper chain; The oil filling port of the oil cylinder is connected to the outlet of the grease gun through an oil pipe; One end of the support rod is fixedly connected to the guide cylinder, a through slot is provided on the side wall of the guide cylinder, and the other end of the support rod is fixed to a support rod base, and the side of the support rod base opposite to the through slot is a horizontal plane.

2. The scraper chain shaft removal device according to claim 1, characterized in that: The oil cylinder leveling device includes a plurality of support plates and a height adjustment screw. The support plates are fixedly connected to the side walls of the oil cylinder and are placed in the same horizontal plane as the axis of the oil cylinder. The height adjustment screw is screwed on the support plates and is arranged perpendicular to the axis of the oil cylinder.

3. The scraper chain shaft removal device according to claim 2, characterized in that: The support rod base is threadedly connected with a second length adjusting screw rod.

4. The scraper chain shaft removal device according to claim 3, characterized in that: The inner diameter of the guide cylinder is larger than the pin diameter of the scraper chain.

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