Head of submerged chain conveyor

Abstract

The utility model relates to a submerged chain conveyor head which comprises a head body, a driving shaft, a chain driving wheel and a speed reducer assembly, sliding grooves are formed in the two sides of the head body, anti-disengagement sliding blocks are installed on the inner walls of the sliding grooves in a sliding mode, and an installation plate is fixedly installed on one side of the head body. The driving shaft is rotationally installed between the two anti-disengaging sliding blocks through a bearing, one end of the driving shaft extends to the position above the installing plate, the chain driving wheel is fixedly installed on the outer wall of the driving shaft, a tensioning adjusting assembly is arranged on the top of the installing plate, and a movable plate is installed on the top of the installing plate. According to the submerged chain salvaging machine head, tensioning adjustment of the scraper chain is achieved by adjusting the position of the chain driving wheel, by means of the design, the complexity of underwater wire connection and maintenance of a tensioning device can be avoided, the overall reliability and safety of equipment can be improved, and due to the fact that the position of the head is relatively dry and easy to approach, the service life of the equipment is prolonged. Therefore, the maintenance and debugging work becomes more convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of scraper chain conveyor, specifically to a head of scraper chain conveyor. BACKGROUND

[0002] As a kind of equipment widely used in industrial water treatment, thermal power generation and other fields, the main function of scraper chain conveyor is to scrape and transport the slag or solid particles in water to designated position for processing through the movement of scraper chain in tank.In the design of scraper chain conveyor, the tensioning device of scraper chain is a crucial component, which is directly related to the running stability, service life of chain and overall performance of equipment.

[0003] Traditional tensioning device of scraper chain conveyor mostly adopts screw rod driving mode, by adjusting the bearing seat position of tail sprocket, tail sprocket moves backward to tension scraper chain.When scraper chain is loose, it can be pulled tight by tensioning device;When scraper chain is too tight, it can be loosened to achieve appropriate tightness.

[0004] This design can meet the basic operation requirements of scraper chain conveyor to some extent, but in some specific application scenarios, especially when the scraper chain is working on water surface, its tail often needs to be immersed in water.In this case, the connection of tensioning device and electric wire and maintenance become relatively complex and difficult, because water environment may cause corrosion or short circuit risk to electric wire, and underwater operation also increases the safety risk and work difficulty of maintenance personnel, in view of this, we propose this new type to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a head of scraper chain conveyor, which solves the problem that when the scraper chain is working on water surface, its tail often needs to be immersed in water.In this case, the connection of tensioning device and electric wire and maintenance become relatively complex and difficult, because water environment may cause corrosion or short circuit risk to electric wire, and underwater operation also increases the safety risk and work difficulty of maintenance personnel.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a head of scraper chain conveyor, including head body, drive shaft, chain drive wheel and speed reducer assembly, the both sides of head body are equipped with sliding slot, the inner wall of sliding slot is equipped with anti-slip block, one side of head body is equipped with mounting plate, drive shaft is rotatably installed between two anti-slip blocks and one end extends to the top of mounting plate, chain drive wheel is fixedly installed on the outer wall of drive shaft, the top of mounting plate is provided with tensioning adjusting assembly;

[0007] The top of the mounting plate is provided with a movable plate, the bottom of the movable plate is fixedly provided with a first sliding block extending into the mounting plate, the mounting plate is provided with a speed reducer assembly, the output end of the speed reducer assembly is provided with a connecting assembly, the tension adjusting assembly comprises a mounting block fixedly arranged on the movable plate and a driving assembly for driving the mounting block to move.

[0008] Further, the connecting assembly comprises a connecting groove formed in the end of the driving shaft above the mounting plate, the connecting groove is square, the output end of the speed reducer assembly is fixedly provided with a connecting rod in sliding connection with the inner wall of the connecting groove, and the surface of the driving shaft is further fixedly provided with a rotating wheel for adjusting the orientation of the connecting groove.

[0009] Further, the driving assembly comprises a motor fixedly arranged on the top of the mounting plate, the top of the mounting plate is further fixedly provided with a fixed block opposite to the motor, the output end of the motor is fixedly provided with a lead screw in rotational connection with the fixed block, and the mounting block is in threaded connection with the outer wall of the lead screw.

[0010] Further, the top of the mounting plate is provided with two first sliding grooves, and the first sliding block is in sliding connection with the inner wall of the corresponding first sliding groove.

[0011] Further, the top of the movable plate is further provided with two second sliding grooves, the bottom of the speed reducer assembly is fixedly provided with a second sliding block extending into the second sliding groove, and the two sides of the movable plate are further provided with a limiting assembly for limiting the second sliding block.

[0012] Further, the limiting assembly comprises two clamping grooves formed in the sides away from the two second sliding blocks, the top of the movable plate and the side of the clamping groove are provided with a mounting groove, the inner wall of the mounting groove is slidably provided with a clamping block extending into the clamping groove, the side away from the clamping groove of the clamping block is rotatably provided with a sliding rod extending to the outside of the movable plate, a spring is fixedly arranged between the side away from the clamping groove of the clamping block and the inner wall of the mounting groove, and the spring is located outside the sliding rod.

[0013] Further, the side of the sliding rod located outside the movable plate is fixedly provided with a positioning block, the two sides of the movable plate are provided with arc-shaped positioning grooves, the inner top walls of the positioning grooves are provided with slopes, the side close to the movable plate of the positioning block is fixedly provided with a positioning rod extending into the positioning groove, and the two sides of the movable plate and above the positioning groove are fixedly provided with a stop block for limiting the positioning rod.

[0014] Further, one side of the second sliding block is provided with a slope, and one side of the clamping block is also provided with a slope, and when the second sliding block slides in the second sliding groove, the clamping block is pushed to move into the mounting groove.

[0015] Compared with the prior art, the slag conveyor head has the following beneficial effects:

[0016] 1、The slag conveyor head adjusts the tensioning assembly from the tail of the slag conveyor to the head, then directly connects the speed reducer assembly with the driving shaft, adjusts the position of the speed reducer assembly through the driving assembly to make the driving shaft and the chain driving wheel move, and then adjusts the position of the chain driving wheel to realize the tensioning adjustment of the scraper chain.

[0017] 2、The slag conveyor head, by changing the position of the tensioning device, directly connects the speed reducer assembly with the driving shaft, then uses the limiting assembly to limit the speed reducer assembly, and through the design of the limiting assembly, the disassembly and assembly of the speed reducer become more convenient and fast, which reduces the work difficulty and time cost of the maintenance personnel. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the main body of the utility model;

[0019] Figure 2 It is a schematic view of the anti-slip block of the utility model;

[0020] Figure 3 It is another view of the installation plate, speed reducer assembly and driving assembly of the utility model;

[0021] Figure 4 It is a sectional view of the connecting rod and connecting groove of the utility model;

[0022] Figure 5 It is a schematic view of the second sliding groove and second sliding block of the utility model;

[0023] Figure 6 It is a schematic view of the utility model Figure 5 It is an enlarged view of A in the utility model;

[0024] Figure 7 It is a schematic view of the positioning rod, positioning groove and stop block of the utility model.

[0025] In the figure: 1, head body; 2, drive shaft; 3, chain drive wheel; 4, speed reducer assembly; 5, sliding groove; 6, anti-slip block; 7, mounting plate; 8, movable plate; 9, fixed block; 10, screw; 11, mounting block; 12, connecting rod; 13, connecting groove; 14, runner; 15, first sliding groove; 16, first sliding block; 17, second sliding groove; 18, second sliding block; 19, mounting groove; 20, clamping groove; 21, clamping block; 22, spring; 23, sliding rod; 24, positioning block; 25, positioning rod; 26, positioning groove; 27, stop block; 28, motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figure 1 and Figure 2 A head of a slag conveyor, comprising a head body 1, a drive shaft 2, a chain drive wheel 3 and a speed reducer assembly 4, sliding grooves 5 are formed on both sides of the head body 1, anti-slip blocks 6 are slidably installed on the inner walls of the sliding grooves 5, a mounting plate 7 is fixedly installed on one side of the head body 1, the drive shaft 2 is rotatably installed between the two anti-slip blocks 6 and extends above the mounting plate 7 at one end, the chain drive wheel 3 is fixedly installed on the outer wall of the drive shaft 2, and a tensioning adjusting assembly is arranged on the top of the mounting plate 7.

[0028] Among them, the speed reducer assembly 4 comprises a driving motor, a coupler and a speed reducer, which is prior art, mainly used for driving the rotation of the scraper chain, which is prior art, and will not be described in detail here.

[0029] In addition, the drive shaft 2 and the chain drive wheel 3 are both driving components of the scraper chain in the scraper slag conveyor, which is prior art, and will not be described in detail here.

[0030] Please refer to Figure 3 The top of the mounting plate 7 is provided with a movable plate 8, the bottom of the movable plate 8 is fixedly provided with a first sliding block 16 extending into the inside of the mounting plate 7, the speed reducer assembly 4 is installed on the top of the mounting plate 7, a connecting assembly is arranged between the output end of the speed reducer assembly 4 and the drive shaft 2, the tensioning adjusting assembly comprises a mounting block 11 fixedly installed on one side of the movable plate 8 close to the head body 1, and further comprises a driving assembly for driving the mounting block 11 to move.

[0031] Wherein, we will adjust the tensioning assembly from the tail of the slag conveyor to the head, and then directly connect the reducer assembly 4 with the driving shaft 2, and then adjust the position of the reducer assembly 4 through the driving assembly to make the driving shaft 2 and the chain driving wheel 3 move, and then adjust the position of the chain driving wheel 3 to realize the tensioning adjustment of the scraper chain. This design can not only avoid the complexity of underwater connection of the tensioning device and maintenance, but also improve the overall reliability and safety of the equipment. At the same time, since the head position is relatively dry and easy to access, the maintenance and debugging work also becomes more convenient and efficient.

[0032] Please refer to Figure 4 In the embodiment, the connecting assembly comprises a connecting groove 13 formed in one end of the driving shaft 2 above the mounting plate 7, the connecting groove 13 is square, the output end of the reducer assembly 4 is fixedly installed with a connecting rod 12 which is in sliding connection with the inner wall of the connecting groove 13, and the surface of the driving shaft 2 is further fixedly installed with a rotating wheel 14 for adjusting the orientation of the connecting groove 13.

[0033] Wherein, the connecting groove 13 and the connecting rod 12 are square to ensure that the driving shaft 2 can rotate synchronously when the connecting rod 12 rotates, and the reducer assembly 4 is started to drive the connecting rod 12 to rotate, thereby driving the driving shaft 2 and the chain driving wheel 3 to rotate synchronously, so that the scraper chain can be driven.

[0034] In addition, the rotating wheel 14 is arranged to adjust the orientation of the connecting groove 13, so that the connecting rod 12 of the subsequent reducer assembly 4 can be smoothly inserted into the inside of the connecting groove 13 during installation.

[0035] Please refer to Figure 1 and Figure 3 In the embodiment, the driving assembly comprises a motor 28 fixedly installed on the top of the mounting plate 7, the top of the mounting plate 7 is further fixedly installed with a fixed block 9 which is oppositely arranged with the motor 28, the output end of the motor 28 is fixedly installed with a lead screw 10 which is in rotating connection with the fixed block 9, and the mounting block 11 is in threaded connection with the outer wall of the lead screw 10.

[0036] Wherein, the top of the mounting plate 7 is provided with two first sliding grooves 15, and the first sliding block 16 is in sliding connection with the inner wall of the corresponding first sliding groove 15. The first sliding groove 15 and the first sliding block 16 are arranged to make the movable plate 8 more stable during movement, thereby making the reducer assembly 4 more stable during movement.

[0037] In addition, the motor 28 is started to drive the lead screw 10 to rotate, and the lead screw 10 will drive the mounting block 11 to move when rotating, at this time, the movable plate 8 will move synchronously with the mounting block 11, thereby the position of the reducer assembly 4 can be adjusted. When the reducer assembly 4 moves, the driving shaft 2 and the chain driving wheel 3 will move synchronously, thereby realizing the tension adjustment of the scraper chain.

[0038] Please refer to Figure 5 In the embodiment, the top of the movable plate 8 is also provided with two second sliding grooves 17, and the bottom of the speed reducer assembly 4 is fixedly installed with two second sliding blocks 18 extending into the second sliding grooves 17.

[0039] The second sliding grooves 17 and the second sliding blocks 18 are arranged to facilitate the movement of the speed reducer assembly 4, and then facilitate the disconnection of the connecting rod 12 from the connecting groove 13, so as to facilitate the subsequent maintenance of the speed reducer assembly 4.

[0040] Please refer to Figure 5 and Figure 6 In the embodiment, the two sides of the movable plate 8 are also provided with limiting assemblies for limiting the second sliding blocks 18, and the limiting assembly comprises two clamping grooves 20 arranged on the sides away from the second sliding blocks 18, and the top of the movable plate 8 and on one side of the clamping grooves 20 are provided with two installation grooves 19, the inner walls of the installation grooves 19 are slidably installed with two clamping blocks 21 extending into the clamping grooves 20, the sides of the clamping blocks 21 away from the clamping grooves 20 are rotatably installed with two slide rods 23 extending to the outside of the movable plate 8, and the sides of the clamping blocks 21 away from the clamping grooves 20 and the inner walls of the installation grooves 19 are fixedly installed with two springs 22, and the springs 22 are located outside the slide rods 23.

[0041] The clamping blocks 21 and the clamping grooves 20 are arranged to limit the second sliding blocks 18, and then limit the speed reducer assembly 4.

[0042] In addition, we change the position of the tensioning device to directly connect the speed reducer assembly 4 with the driving shaft 2, and then use the limiting assembly to limit the speed reducer assembly 4, and the design of the limiting assembly makes the disassembly and assembly of the speed reducer more convenient and fast, and reduces the working difficulty and time cost of the maintenance personnel.

[0043] Please refer to Figure 7 In the embodiment, the side of the slide rod 23 located outside the movable plate 8 is fixedly installed with a positioning block 24, the two sides of the movable plate 8 are provided with arc-shaped positioning grooves 26, the inner top walls of the positioning grooves 26 are provided with slopes, the side of the positioning block 24 close to the movable plate 8 is fixedly installed with a positioning rod 25 extending into the positioning groove 26, and the two sides of the movable plate 8 and above the positioning grooves 26 are fixedly installed with two stop blocks 27 for limiting the positioning rod 25.

[0044] The positioning rod 25 and the positioning groove 26 are arranged to limit the slide rod 23, and then limit the clamping block 21, when the clamping block 21 is located in the clamping groove 20, the speed reducer assembly 4 is fixed, and when the clamping block 21 is separated from the clamping groove 20, the speed reducer assembly 4 is no longer limited.

[0045] In addition, the stop block 27 limits the rotation path of the positioning rod 25, so that the stop block 27 is not easily separated from the adjustment of the subsequent clamping block 21 to the movable plate 8.

[0046] It is worth noting that one side of the second sliding block 18 is provided with a slope, and one side of the clamping block 21 is also provided with a slope, when the second sliding block 18 slides in the second sliding groove 17, the clamping block 21 is pushed to move to the inside of the mounting groove 19, so that the maintenance personnel can complete the installation of the speed reducer assembly 4 without rotating the positioning block 24 again when the clamping block 21 is located in the inside of the second sliding groove 17, and the convenience of the maintenance of the speed reducer assembly 4 is further improved.

[0047] In use, when it is necessary to adjust the tension of the scraper chain, the motor 28 is started to drive the screw rod 10 to rotate, and the screw rod 10 drives the mounting block 11 to move when rotating, and the movable plate 8 moves synchronously with the mounting block 11, so that the position of the speed reducer assembly 4 can be adjusted, and when the speed reducer assembly 4 moves, the driving shaft 2 and the chain driving wheel 3 move synchronously, so that the tension of the scraper chain is adjusted.

[0048] When the speed reducer assembly 4 needs to be maintained, the positioning block 24 is rotated to drive the positioning rod 25 to slide in the positioning groove 26, when the positioning rod 25 slides along the slope of the inner wall of the positioning groove 26 to the outside of the positioning groove 26, the positioning block 24 pulls the sliding rod 23 to move to the outside of the movable plate 8, and at this time, the clamping block 21 is separated from the clamping groove 20, so that the second sliding block 18 is no longer limited, and then the speed reducer assembly 4 can be directly removed for maintenance; when installed, only the second sliding block 18 needs to be reset, and the connecting rod 12 is inserted into the connecting groove 13, at this time, the positioning block 24 is rotated to drive the positioning rod 25 to rotate to the inside of the positioning groove 26, and in this process, the clamping block 21 is clamped into the corresponding clamping groove 20 under the elastic force of the spring 22, so that the limitation of the second sliding block 18 is completed, and the installation of the speed reducer assembly 4 is completed, so that the maintenance of the speed reducer becomes more convenient and fast, and the working difficulty and time cost of the maintenance personnel are reduced.

[0049] The electrical elements in the text are electrically connected with the main control and power supply, the main control can be a conventional known device such as a computer, and the existing disclosed power connection technology is not described herein.

[0050] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A head of a drag scraper comprising a head body (1), a drive shaft (2), a chain drive wheel (3) and a reduction gear assembly (4), characterized in that: Both sides of the head body (1) are provided with sliding grooves (5), the inner wall of the sliding groove (5) is slidably installed with an anti-slip block (6), one side of the head body (1) is fixedly installed with a mounting plate (7), the driving shaft (2) is rotatably installed between the two anti-slip blocks (6) and extends to above the mounting plate (7) at one end, the chain drive wheel (3) is fixedly installed on the outer wall of the driving shaft (2), and the top of the mounting plate (7) is provided with a tension adjusting assembly; Wherein, the top of the mounting plate (7) is provided with an activity plate (8), the bottom of the activity plate (8) is fixedly installed with a first sliding block (16) extending into the mounting plate (7), the reducer assembly (4) is installed on the top of the mounting plate (7), and a connecting assembly is arranged between the output end of the reducer assembly (4) and the driving shaft (2). The tension adjusting assembly comprises a mounting block (11) fixedly installed on the side of the activity plate (8) close to the head body (1), and further comprises a driving assembly for driving the mounting block (11) to move.

2. A head for a slag conveyer according to claim 1, characterized in that: The connecting assembly comprises a connecting groove (13) formed in one end of the driving shaft (2) above the mounting plate (7), the connecting groove (13) is square, the output end of the reducer assembly (4) is fixedly installed with a connecting rod (12) slidably connected with the inner wall of the connecting groove (13), and the surface of the driving shaft (2) is further fixedly installed with a rotating wheel (14) for adjusting the orientation of the connecting groove (13).

3. A head for a slag conveyer as claimed in claim 1, characterized in that: The driving assembly comprises a motor (28) fixedly installed on the top of the mounting plate (7), the top of the mounting plate (7) is further fixedly installed with a fixed block (9) oppositely arranged with the motor (28), the output end of the motor (28) is fixedly installed with a screw rod (10) rotatably connected with the fixed block (9), and the mounting block (11) is threadedly connected with the outer wall of the screw rod (10).

4. A head for a slag conveyer as claimed in claim 1, characterized in that: The top of the mounting plate (7) is provided with two first sliding grooves (15), and the first sliding block (16) is slidably connected with the inner wall of the corresponding first sliding groove (15).

5. A head for a slag conveyer according to claim 1, characterized in that: The top of the activity plate (8) is further provided with two second sliding grooves (17), the bottom of the reducer assembly (4) is fixedly installed with a second sliding block (18) extending into the second sliding groove (17), and the two sides of the activity plate (8) are further provided with a limiting assembly for limiting the second sliding block (18).

6. A head for a slag conveyer as claimed in claim 5, characterized in that: The limiting assembly comprises two clamping grooves (20) formed on the sides away from the two second sliding blocks (18), the top of the activity plate (8) and the side of the clamping groove (20) are provided with a mounting groove (19), the inner wall of the mounting groove (19) is slidably installed with a clamping block (21) extending into the clamping groove (20), the side away from the clamping groove (20) of the clamping block (21) is rotatably installed with a sliding rod (23) extending to the outside of the activity plate (8), the side away from the clamping groove (20) of the clamping block (21) and the inner wall of the mounting groove (19) are further fixedly installed with a spring (22), and the spring (22) is located outside the sliding rod (23).

7. A head for a slag conveyer according to claim 6, characterized in that: The slide rod (23) is fixedly installed with a positioning block (24) on one side outside the movable plate (8), arc-shaped positioning grooves (26) are arranged on both sides of the movable plate (8), the inner top walls of the positioning grooves (26) are all arranged as slope surfaces, the positioning block (24) is fixedly installed with a positioning rod (25) extending into the positioning groove (26) on the side close to the movable plate (8), and the movable plate (8) is fixedly installed with a stop block (27) for limiting the positioning rod (25) on both sides and above the positioning groove (26).

8. A head for a slag conveyer according to claim 6, characterized in that: One side of the second sliding block (18) is arranged as an inclined surface, one side of the clamping block (21) is also arranged as an inclined surface, and when the second sliding block (18) slides in the second sliding groove (17), the clamping block (21) is pushed to move into the mounting groove (19).

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