Tail tensioning device of scraper conveyer

Abstract

The utility model relates to the technical field of scraper conveyors, in particular to a scraper conveyor tail tensioning device which comprises a first installation groove, two second installation grooves are formed in one side of the first installation groove, and the bottom ends of the interiors of the two second installation grooves are each provided with a limiting rack. And the two second mounting grooves are internally and respectively provided with a threaded rod, the outer side of each threaded rod is sleeved with a sliding block through thread engagement, the bottom of each sliding block is hinged to a limiting stop lever, the bottom of each sliding block is provided with a blocking block, and the limiting stop levers and the limiting racks are used in a matched mode. According to the chain scraper tensioning device, the tensioning force on the chain scraper can be kept in the using process, the situation that the chain scraper is loosened due to the fact that the sliding block moves rightwards under the condition of long-time use is avoided, and the tensioning effect on the chain scraper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, in particular to a tail tensioning device for a scraper conveyor. Background Art

[0002] A conveyor that uses a scraper chain to transport bulk materials in a trough is called a scraper conveyor. In the current coal mining face, the role of the scraper conveyor is not only to transport coal and materials, but also to serve as the operating track of the coal mining machine. Therefore, it has become an indispensable main equipment in modern coal mining technology. If the scraper conveyor can maintain continuous operation, production can proceed normally.

[0003] The tail part of the scraper conveyor is usually equipped with a tensioning device. When the scraper conveyor is used for a long time, the internal chain scraper will become loose, so a tensioning device is needed to tighten the chain scraper between the two rotating shafts to ensure the normal transportation of materials.

[0004] The existing tail tensioning device of a scraper conveyor cannot maintain the tension of the chain scraper for a long time, and vibration will occur during the operation of the conveyor. After a period of use, the tensioning device will become loose, which will cause the chain scraper to loosen again.

[0005] For this purpose, a tail tensioning device for a scraper conveyor is specially proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a tail tensioning device for a scraper conveyor to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tail tensioning device for a scraper conveyor, comprising a first mounting groove, two second mounting grooves are installed on one side of the first mounting groove, a limiting rack is installed at the bottom end of the two second mounting grooves respectively, a threaded rod is installed inside the two second mounting grooves respectively, a slider is provided on the outer side of the threaded rod through a threaded engagement sleeve, the bottom of the slider is hinged to a limiting stopper rod, the bottom of the slider is installed with a blocking block, and the limiting stopper rod and the limiting rack are used in conjunction with each other.

[0007] Preferably, two gear shafts are installed inside the first installation groove, and a transmission chain is sleeved on the outer sides of the two gear shafts.

[0008] Preferably, one end of the two gear shafts extends into the two second mounting grooves respectively, and one end of the gear shaft is connected to one end of the threaded rod.

[0009] Preferably, a motor is installed on one side of the first installation slot, and the motor extends into the first installation slot and is connected to one end of a gear shaft.

[0010] Preferably, a support plate is installed on one side of the top end of each of the two gear shafts, and a slide groove is provided inside the support plate.

[0011] Preferably, the top end of the slider extends out of the second installation groove, a slide bar is installed on one side of the slider, and the slide bar is slidably installed inside the slide groove, and a transmission shaft is movably installed between the two sliders.

[0012] Compared with the prior art, the utility model provides a tail tensioning device for a scraper conveyor, which has the following beneficial effects:

[0013] By providing a slider, a gear shaft, a limit stop rod, a limit rack, a threaded rod and a block, the chain scraper can be tightened by controlling the two sliders to move rightward on the upper side of the gear shaft. As the slider moves, the limit stop rod will be deflected and move between the limit racks. The blocking effect of the block can prevent the limit stop rod from rotating counterclockwise, so that the limit stop rod is stuck inside the limit rack, so as to ensure that after the slider moves to the specified position, the slider will not move to the right along the installation direction of the threaded rod due to the vibration generated when the equipment is working, thereby fixing the slider, maintaining the tension on the chain scraper, and preventing the chain scraper from loosening due to the direction of the slider when used for a long time, thereby improving the tightening effect of the chain scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 This is a front view structural schematic diagram of the utility model;

[0017] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1. first mounting groove; 2. gear shaft; 4. limit rack; 5. second mounting groove; 6. threaded rod; 7. slider; 8. slide rod; 9. slide groove; 10. support plate; 11. transmission chain; 12. motor; 13. transmission shaft; 14. limit stop rod; 15. blocking block. 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 in 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] Embodiment 1: Two second mounting grooves 5 are installed on one side of the first mounting groove 1, and a limit rack 4 is installed at the bottom end of each of the two second mounting grooves 5, and a threaded rod 6 is installed inside each of the two second mounting grooves 5. A slider 7 is provided on the outer side of the threaded rod 6 through a threaded engagement sleeve, and a limit stop rod 14 is hinged at the bottom of the slider 7. A blocking block 15 is installed at the bottom of the slider 7, and the limit stop rod 14 is used in conjunction with the limit rack 4.

[0021] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, since a slider 7 is provided on the outer side of the threaded rod 6 through a threaded engagement sleeve, when the threaded rod 6 rotates, the slider 7 will move along the installation direction of the threaded rod 6. Since a limit rack 4 is installed at the bottom end of the second installation groove 5, and a limit stopper 14 is hinged at the bottom of the slider 7, when the slider 7 moves to the left along the installation direction of the threaded rod 6, the bottom ends of the limit stoppers 14 hinged at the bottom end of the slider 7 will contact the limit racks 4 one by one. As the slider 7 moves, the limit stopper 14 will deflect and move between the limit racks 4. Since the bottom of the slider 7 is installed There is a block 15, and the block 15 is used in conjunction with the limit stop rod 14. The blocking effect of the block 15 can prevent the limit stop rod 14 from rotating counterclockwise, so that the limit stop rod 14 is stuck in the limit rack 4, so as to ensure that after the slider 7 moves to the specified position, the slider 7 will not move to the right along the installation direction of the threaded rod 6 due to the vibration generated when the equipment is working, thereby fixing the slider 7 and maintaining the tension on the chain scraper. The slider 7 will not move to the right and cause the chain scraper to loosen due to long-term use, thereby improving the tensioning effect of the chain scraper.

[0022] Embodiment 2: Two gear shafts 2 are installed inside the first mounting groove 1, and a transmission chain 11 is sleeved on the outer sides of the two gear shafts 2, one end of the two gear shafts 2 respectively extends into the two second mounting grooves 5, and one end of the gear shaft 2 is connected to one end of the threaded rod 6, a motor 12 is installed on one side of the first mounting groove 1, the motor 12 extends into the first mounting groove 1 and is connected to one end of a gear shaft 2, a support plate 10 is installed on one side of the top of the two gear shafts 2, and a slide groove 9 is opened inside the support plate 10, the top of the slider 7 extends out of the second mounting groove 5, a slide rod 8 is installed on one side of the slider 7, and the slide rod 8 is slidably installed inside the slide groove 9, and a transmission shaft 13 is movably installed between the two sliders 7.

[0023] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the rotation of the output end of the motor 12 can drive a gear shaft 2 inside the first installation groove 1 to rotate. Since a transmission chain 11 is sleeved between the two gear shafts 2, when one gear shaft 2 rotates, the transmission effect of the transmission chain 11 will drive the other gear shaft 2 to rotate. Since one end of the gear shaft 2 is connected to one end of the threaded rod 6, the rotation of the gear shaft 2 can drive the threaded rod 6 to rotate, thereby driving the threaded rod 6 to rotate and control the movement of the slider 7. Since the slide bar 8 installed on one side of the slider 7 is slidably installed inside the slide groove 9, when the slider 7 moves, the slide bar 8 will slide along the opening direction of the slide groove 9, thereby ensuring the stability of the slider 7 during movement. Since a transmission shaft 13 is movably installed between the two sliders 7, the chain scraper can be carried and transmitted through the transmission shaft 13.

[0024] Working principle: When in use, the rotation of the output end of the motor 12 can drive a gear shaft 2 inside the first installation slot 1 to rotate. When one gear shaft 2 rotates, the transmission effect of the transmission chain 11 will drive another gear shaft 2 to rotate. The rotation of the gear shaft 2 can drive the threaded rod 6 to rotate. Since a slider 7 is provided on the outer side of the threaded rod 6 through a threaded engagement sleeve, when the threaded rod 6 rotates, the slider 7 will move along the installation direction of the threaded rod 6. When the slider 7 moves to the left along the installation direction of the threaded rod 6, the bottom end of the hinged limit stop rod 14 at the bottom end of the slider 7 will contact the limit rack 4 one by one. As the slider 7 moves, the limit stop rod 14 will contact the limit rack 4 one by one. The rod 14 will be deflected and move between the limit racks 4. Since a block 15 is installed at the bottom of the slider 7, and the block 15 is used in conjunction with the limit stop rod 14, the blocking effect of the block 15 can prevent the limit stop rod 14 from rotating counterclockwise, so that the limit stop rod 14 is stuck inside the limit rack 4, so as to ensure that after the slider 7 moves to the specified position, the slider 7 will not move to the right along the installation direction of the threaded rod 6 due to the vibration generated when the equipment is working, thereby fixing the slider 7 and maintaining the tension on the chain scraper. The slider 7 will not move to the right and cause the chain scraper to loosen due to long-term use, thereby improving the tensioning effect of the chain scraper.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tail tensioning device for a scraper conveyor, comprising a first mounting groove (1), characterized in that: Two second mounting grooves (5) are installed on one side of the first mounting groove (1), and a limit rack (4) is installed at the bottom end of each of the two second mounting grooves (5), and a threaded rod (6) is installed inside each of the two second mounting grooves (5). A slider (7) is provided on the outer side of each of the threaded rods (6) through a threaded engagement sleeve, and a limit stop rod (14) is hinged at the bottom of each of the sliders (7). A blocking block (15) is installed at the bottom of each of the sliders (7), and the limit stop rod (14) cooperates with the limit rack (4) for use.

2. According to claim 1, a tail tensioning device for a scraper conveyor, characterized in that: Two gear shafts (2) are installed inside the first installation groove (1), and a transmission chain (11) is sleeved on the outer sides of the two gear shafts (2).

3. The tail tensioning device of a scraper conveyor according to claim 2, characterized in that: One end of the two gear shafts (2) extends into the interior of the two second mounting grooves (5) respectively, and one end of the gear shaft (2) is connected to one end of the threaded rod (6).

4. The tail tensioning device of a scraper conveyor according to claim 1, characterized in that: A motor (12) is installed on one side of the first installation slot (1); the motor (12) extends into the first installation slot (1) and is connected to one end of a gear shaft (2).

5. The tail tensioning device of a scraper conveyor according to claim 2, characterized in that: A support plate (10) is respectively installed on one side of the top end of the two gear shafts (2), and a slide groove (9) is provided inside the support plate (10).

6. The tail tensioning device of a scraper conveyor according to claim 1, characterized in that: The top end of the slider (7) extends out of the second mounting groove (5), a slide bar (8) is installed on one side of the slider (7), and the slide bar (8) is slidably installed inside the slide groove (9), and a transmission shaft (13) is movably installed between the two sliders (7).

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