Bidirectional tensioning adjusting mechanism and sealing device of scraper conveyor

Abstract

The utility model relates to the technical field of scrapers, in particular to a bidirectional tension adjusting mechanism and sealing device of a scraper, which comprises a machine head, a chute is fixedly connected to the side surface of the machine head, a machine tail is fixedly connected to one side, far away from the machine head, of the chute, and a speed reducing motor is mounted on the upper surface of the machine head. A chain wheel is installed at the driving end of the gear motor, a chain is installed on the surface, located on the chain wheel, of the gear motor, a transmission shaft is installed on the inner wall of the machine head, a driven wheel is installed on the side surface of the transmission shaft, the chain is meshed with a tooth groove of the driven wheel, and a driven shaft is installed on the inner wall of the machine tail. A tensioning assembly is arranged on the surface of the chute. According to the utility model, through the arrangement of the tensioning assembly, a user can synchronously adjust the positions of the transmission shaft and the driven shaft, so that the problems of complex adjustment operation and low efficiency when the tensioning degree of the scraper is adjusted are reduced, and the efficiency and the convenience when the tensioning degree of equipment is adjusted are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to scraper technology field especially relates to scraper bidirectional tension adjusting mechanism and sealing device. BACKGROUND

[0002] The scraper is a kind of continuous conveying equipment widely used in coal, mining, electric power, chemical industry and other industries, mainly used for horizontal or inclined conveying bulk materials, plays the key role of material transport in various production processes;The scraper has the advantages of simple structure, large conveying capacity, can adapt to complex terrain and harsh working environment, can stably run in different places such as underground roadway, open pit mine, factory workshop, etc., to ensure the efficiency and continuity of material conveying link in production process.

[0003] In the process of conveying materials by means of the scraper, when adjusting the tension, the user needs to manually adjust the position of the driving shaft or the driven shaft, so as to realize the adjustment of the tension of the scraper chain, when the positions of the driving shaft and the driven shaft need to be adjusted, the operation is dispersed when adjusting the tension, so that the difficulty of adjusting the tension of the equipment is higher, and the time consumed when adjusting is longer, which is not conducive to the user to adjust the operation. UTILITY MODEL CONTENT

[0004] The utility model discloses a scraper bidirectional tension adjusting mechanism and sealing device are provided to solve the problem that when the positions of the driving shaft and the driven shaft need to be adjusted in the prior art, the operation is dispersed when adjusting the tension, so that the difficulty of adjusting the tension of the equipment is higher, and the time consumed when adjusting is longer, which is not conducive to the user to adjust the operation.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: the scraper bidirectional tension adjusting mechanism and sealing device, including the head, the side surface of the head is fixedly connected with the chute, the side away from the head of the chute is fixedly connected with the tail, the upper surface of the head is installed with the speed reducer motor, the driving end of the speed reducer motor is installed with the chain wheel, the surface of the speed reducer motor at the chain wheel is installed with the chain, the inner wall of the head is installed with the driving shaft, the side surface of the driving shaft is installed with the driven wheel, the chain is engaged with the tooth groove of the driven wheel, the inner wall of the tail is installed with the driven shaft, the surface of the driving shaft and the driven shaft is installed with the bearing bush, the surface of the driving shaft is installed with the plate chain, the surface of the plate chain is installed with the scraper body, the surface of the chute is provided with the tension assembly;

[0006] The tensioning assembly comprises a protective cover fixedly connected with the surface of the chute, a servo motor fixedly connected with the surface of the protective cover, a transmission gear installed on the driving end of the servo motor, a driven gear rotatably connected with the inner wall of the protective cover, tooth grooves of the transmission gear and the driven gear, a bidirectional screw rod fixedly connected with the inner wall of the driven gear, a first linkage frame rotatably connected with the surface of the transmission shaft and the driven shaft, and a second linkage frame rotatably connected with the surface of the transmission shaft and the driven shaft.

[0007] Preferably, the front and rear sides of the head are fixedly connected with guide frames, one end of the guide frames away from the head is fixedly connected with the surface of the tail, the first linkage frame is slidably connected with the surface of the guide frame, the second linkage frame is slidably connected with the surface of the guide frame, and the bidirectional screw rod is rotatably connected with the inner wall of the guide frame.

[0008] Preferably, the transmission gear is rotatably connected with the inner wall of the protective cover, the meshing part of the transmission gear and the driven gear can be protected through the protective cover, thereby reducing the probability of damage of the meshing part.

[0009] Preferably, the inner walls of the head and the tail are provided with sealing assemblies, the sealing assemblies comprise an inner sealing cover, the inner sealing cover is in contact with the inner wall of the head, the transmission shaft is inserted into the inner sealing cover, the driven shaft is inserted into the inner sealing cover, the inner wall of the inner sealing cover is threadedly connected with a connecting bolt, the surface of the connecting bolt is threadedly connected with a connecting frame, the connecting frame is sleeved with the surface of a bearing, the side of the connecting frame close to the head is fixedly connected with an outer sealing cover, the outer sealing cover is in contact with the surface of the head, the notch through which the transmission shaft and the driven shaft move can be shielded through cooperation of the inner sealing cover and the outer sealing cover, thereby reducing the probability of material leakage from the notch.

[0010] Preferably, the side surface of the head is provided with an auxiliary mechanism, the auxiliary mechanism comprises a mounting frame fixedly connected with the side surface of the head, a cover plate fixedly connected with the upper surface of the mounting frame, a limiting spring fixedly connected with the lower surface of the cover plate, a connecting frame slidably connected with the inner wall of the mounting frame, and a pressure roller rotatably connected with the shaft rod part of the connecting frame, the pressure roller is in contact with the surface of a chain, the position of the connecting frame can be constrained under the limitation of the cover plate through the limiting spring, thereby ensuring that the pressure roller mounted on the connecting frame is always in effective contact with the chain.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that:

[0012] 1、The utility model discloses a tensioning assembly is set up, so that the user can adjust the position of transmission shaft and driven shaft simultaneously, thereby reducing the problem that adjusting operation is complicated and low in efficiency when adjusting the tension of the scraper, and further improve the efficiency and convenience when adjusting the tension of the equipment.

[0013] 2、The utility model discloses a sealing assembly is set up, so that the user can shield the hole produced when moving when adjusting the tension of the equipment, effectively ensure the sealing property of the shell of the equipment. ACCURACY OF DRAWINGS

[0014] Figure 1 The utility model proposes the three -dimensional structure schematic diagram of scraper bidirectional tensioning adjusting mechanism and sealing device for the utility model;

[0015] Figure 2 The utility model proposes the rear view structure schematic diagram of scraper bidirectional tensioning adjusting mechanism and sealing device for the utility model;

[0016] Figure 3 The utility model proposes the tensioning assembly structure schematic diagram of scraper bidirectional tensioning adjusting mechanism and sealing device for the utility model;

[0017] Figure 4 The utility model proposes the sealing assembly structure schematic diagram of scraper bidirectional tensioning adjusting mechanism and sealing device for the utility model;

[0018] Figure 5 The utility model proposes the auxiliary mechanism structure schematic diagram of scraper bidirectional tensioning adjusting mechanism and sealing device for the utility model.

[0019] LEGEND:

[0020] 1, head; 2, chute; 3, tail; 4, reduction motor; 5, chain; 6, transmission shaft; 7, auxiliary mechanism; 71, mounting frame; 72, cover plate; 73, limit spring; 74, connecting frame; 75, pressure roller; 8, driven shaft; 9, bearing; 10, plate chain; 11, scraper body; 12, tensioning assembly; 121, protective cover; 122, servo motor; 123, transmission gear; 124, driven gear; 125, bidirectional screw; 126, guide frame; 127, first linkage frame; 128, second linkage frame; 13, sealing assembly; 131, inner sealing cover; 132, connecting bolt; 133, link frame; 134, outer sealing cover. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-5The utility model provides a technical scheme: scraper bidirectional tension adjusting mechanism and sealing device, including the head 1, the side surface fixed connection of head 1 has the chute 2, the side fixed connection of chute 2 away from head 1 has the tail 3, the upper surface of head 1 is installed with the reduction motor 4, the drive end of reduction motor 4 is installed with the chain wheel, the surface of reduction motor 4 at the chain wheel is installed with chain 5, the inner wall of head 1 is installed with transmission shaft 6, the side surface of transmission shaft 6 is installed with driven wheel, and the toothing groove of chain 5 and driven wheel is engaged, the inner wall of tail 3 is installed with driven shaft 8, and the surface of transmission shaft 6 and driven shaft 8 is installed with bearing 9, the surface of transmission shaft 6 is installed with plate chain 10, the surface of plate chain 10 is installed with scraper body 11, and the surface of chute 2 is provided with tension assembly 12.

[0022] Specifically, the tension assembly 12 includes a protective cover 121, the protective cover 121 is fixedly connected with the surface of the chute 2, the surface of the protective cover 121 is fixedly connected with a servo motor 122, the drive end of the servo motor 122 is provided with a transmission gear 123, the inner wall of the protective cover 121 is rotatably connected with a driven gear 124, the toothing groove of the transmission gear 123 and the driven gear 124 is engaged, the inner wall of the driven gear 124 is fixedly connected with a bidirectional screw rod 125, the surface of the transmission shaft 6 and the driven shaft 8 is rotatably connected with a first linkage frame 127, the surface of the first linkage frame 127 is threadedly connected with the bidirectional screw rod 125, and the surface of the transmission shaft 6 and the driven shaft 8 is rotatably connected with a second linkage frame 128.

[0023] Specifically, the front and rear sides of the head 1 are fixedly connected with guide frames 126, one end of the guide frame 126 away from the head 1 is fixedly connected with the surface of the tail 3, the surface of the first linkage frame 127 is slidably connected with the guide frame 126, the surface of the second linkage frame 128 is slidably connected with the guide frame 126, and the inner wall of the guide frame 126 is rotatably connected with the bidirectional screw rod 125.

[0024] In the embodiment, the movement direction of the first linkage frame 127 and the second linkage frame 128 can be guided through the guide frame 126, so as to ensure the stability of the first linkage frame 127 and the second linkage frame 128 during movement.

[0025] Specifically, the transmission gear 123 is rotatably connected with the inner wall of the protective cover 121, the engagement part of the transmission gear 123 and the driven gear 124 can be protected through the protective cover 121, so as to reduce the probability of damage of the engagement part.

[0026] Specifically, the inner wall of the head 1 and the tail 3 is provided with a sealing assembly 13, the sealing assembly 13 comprises an inner sealing cover 131, the inner sealing cover 131 is in contact with the inner wall of the head 1, the transmission shaft 6 is inserted in the inner sealing cover 131, the driven shaft 8 is inserted in the inner sealing cover 131, the inner wall of the inner sealing cover 131 is threadedly connected with a connecting bolt 132, the surface of the connecting bolt 132 is threadedly connected with an adapter frame 133, the adapter frame 133 is sleeved with the surface of the bearing bush 9, the side of the adapter frame 133 close to the head 1 is fixedly connected with an outer sealing cover 134, and the outer sealing cover 134 is in contact with the surface of the head 1.

[0027] In this embodiment: through the cooperation of the inner sealing cover 131 and the outer sealing cover 134, the notch moved by the transmission shaft 6 and the driven shaft 8 can be shielded, so as to reduce the probability of material leakage from the notch.

[0028] Specifically, the side surface of the head 1 is provided with an auxiliary mechanism 7, the auxiliary mechanism 7 comprises a mounting frame 71, the mounting frame 71 is fixedly connected with the side surface of the head 1, the upper surface of the mounting frame 71 is fixedly connected with a cover plate 72, the lower surface of the cover plate 72 is fixedly connected with a limiting spring 73, the inner wall of the mounting frame 71 is slidingly connected with a connecting frame 74, one end of the limiting spring 73 away from the cover plate 72 is fixedly connected with the surface of the connecting frame 74, the shaft rod part of the connecting frame 74 is rotatably connected with a pressure roller 75, and the pressure roller 75 is in contact with the surface of the chain 5.

[0029] In this embodiment: through the limiting spring 73, the position of the connecting frame 74 can be constrained under the limitation of the cover plate 72, so as to ensure that the pressure roller 75 mounted on the connecting frame 74 is always in effective contact with the chain 5.

[0030] Working principle: when the device is used to convey materials, the materials enter into the tail 3 from the feed port of the tail 3, and at the same time, the reduction motor 4 is powered to drive the chain 5 in cooperation with the sprocket, the chain 5 drives the transmission shaft 6 in cooperation with the driven wheel, the transmission shaft 6 drives the plate chain 10 and the scraper body 11 to rotate under the cooperation of the driven shaft, and the scraper body 11 pushes the materials out of the feed port to the discharge port of the head 1 in cooperation with the chute 2 during rotation;

[0031] When the tension of the plate chain 10 needs to be adjusted, the servo motor 122 is turned on, the servo motor 122 drives the transmission gear 123, the transmission gear 123 meshes with the driven gear 124, the driven gear 124 drives the bidirectional screw rod 125 under the action of the transmission gear 123, the bidirectional screw rod 125 meshes with the first linkage frame 127 on both sides through threads, the first linkage frame 127 on both sides cooperates with the second linkage frame 128 and the guide frame 126, and the transmission shaft 6 and the driven shaft 8 are moved in opposite or same directions, the distance between the transmission shaft 6 and the driven shaft 8 is increased or reduced during the movement, and the tension of the plate chain 10 is changed during the change of the distance, by arranging the tensioning assembly 12, the user can adjust the positions of the transmission shaft 6 and the driven shaft 8 synchronously, thereby reducing the problems of complex adjustment operation and low efficiency when adjusting the tension of the scraper, and further improving the efficiency and convenience when adjusting the tension of the equipment;

[0032] In addition, when the transmission shaft 6 and the driven shaft 8 move, the inner sealing cover 131 installed on the transmission shaft 6 and the driven shaft 8 cooperates with the connecting bolt 132, the connecting frame 133 and the bearing 9, and drives the outer sealing cover 134 to move, the outer sealing cover 134 and the inner sealing cover 131 will shield the slot for the movement of the transmission shaft 6 and the driven shaft 8 on the head 1 and the tail 3 during the movement, by arranging the sealing assembly 13, the user can shield the hole generated during the movement when adjusting the tension of the equipment, thereby effectively ensuring the sealing performance of the shell of the equipment;

[0033] In addition, when adjusting the tension, the transmission shaft 6 pulls the chain 5 through the driven wheel, the chain 5 is extruded in the process of deformation, the pressure roller 75 pushes the connecting frame 74, the connecting frame 74 extrudes the limiting spring 73, the limiting spring 73 is extruded and deformed, and the limiting spring 73 extrudes the position of the connecting frame 74 during the deformation, thereby ensuring that the connecting frame 74 and the pressure roller 75 extrude the chain 5, so that the chain 5 is always in a tension state, by arranging the auxiliary mechanism 7, the chain 5 can follow the tension adjustment of the plate chain 10, and automatic tensioning is realized, so as to ensure the transmission effect of the chain 5.

Claims

1. Bidirectional tensioning adjustment mechanism of a blade machine, comprising a head (1), characterized in that: The side surface of the machine head (1) is fixedly connected with a chute (2), one side of the chute (2) away from the machine head (1) is fixedly connected with a machine tail (3), the upper surface of the machine head (1) is provided with a speed reducer motor (4), the driving end of the speed reducer motor (4) is provided with a chain wheel, the surface of the speed reducer motor (4) located at the chain wheel is provided with a chain (5), the inner wall of the machine head (1) is provided with a transmission shaft (6), the side surface of the transmission shaft (6) is provided with a driven wheel, the chain (5) is engaged with the tooth groove of the driven wheel, the inner wall of the machine tail (3) is provided with a driven shaft (8), the surfaces of the transmission shaft (6) and the driven shaft (8) are provided with a bearing (9), the surface of the transmission shaft (6) is provided with a plate chain (10), the surface of the plate chain (10) is provided with a scraper body (11), the surface of the chute (2) is provided with a tensioning assembly (12); The tensioning assembly (12) comprises a driving module composed of a servo motor (122), a transmission gear (123) and a driven gear (124); The tensioning assembly (12) further comprises a bidirectional adjusting module composed of a bidirectional screw rod (125), a first linkage frame (127) and a second linkage frame (128).

2. The bi-directional tensioning adjustment mechanism of the flight bar according to claim 1, wherein: The tensioning assembly comprises a protective cover (121), the surface of the protective cover (121) is fixedly connected with the surface of the chute (2), the surface of the protective cover (121) is fixedly connected with the servo motor (122), the driving end of the servo motor (122) is provided with the transmission gear (123), the inner wall of the protective cover (121) is rotatably connected with the driven gear (124), the transmission gear (123) is engaged with the tooth groove of the driven gear (124), the inner wall of the driven gear (124) is fixedly connected with the bidirectional screw rod (125), the surfaces of the transmission shaft (6) and the driven shaft (8) are rotatably connected with the first linkage frame (127), the first linkage frame (127) is threadedly connected with the surface of the bidirectional screw rod (125), the surfaces of the transmission shaft (6) and the driven shaft (8) are rotatably connected with the second linkage frame (128) 3. The bi-directional tensioning adjustment mechanism of the flight bar according to claim 1, wherein: The front and rear sides of the machine head (1) are fixedly connected with guide frames (126), one end of the guide frame (126) away from the machine head (1) is fixedly connected with the surface of the machine tail (3), the surface of the first linkage frame (127) is slidably connected with the guide frame (126), the surface of the second linkage frame (128) is slidably connected with the guide frame (126), and the bidirectional screw rod (125) is rotatably connected with the inner wall of the guide frame (126).

4. The bi-directional tensioning adjustment mechanism of the flight bar according to claim 2, wherein: The transmission gear (123) is rotatably connected with the inner wall of the protective cover (121).

5. The flight seal apparatus of claim 1, wherein: The inner wall of the nose (1) and tail (3) is provided with a sealing assembly (13), the sealing assembly (13) comprises an inner sealing cover (131), the inner sealing cover (131) is in contact with the inner wall of the nose (1), the transmission shaft (6) is inserted in the inner sealing cover (131), the driven shaft (8) is inserted in the inner sealing cover (131), the inner wall of the inner sealing cover (131) is threadedly connected with a connecting bolt (132), the surface of the connecting bolt (132) is threadedly connected with a connecting frame (133), the connecting frame (133) is sleeved with the surface of the bearing bush (9), the side of the connecting frame (133) close to the nose (1) is fixedly connected with an outer sealing cover (134), the outer sealing cover (134) is in contact with the surface of the nose (1).

6. The bi-directional tensioning adjustment mechanism of the flight bar according to claim 1, wherein: The side surface of the nose (1) is provided with an auxiliary mechanism (7), the auxiliary mechanism (7) comprises a mounting frame (71), the mounting frame (71) is fixedly connected with the side surface of the nose (1), the upper surface of the mounting frame (71) is fixedly connected with a cover plate (72), the lower surface of the cover plate (72) is fixedly connected with a limiting spring (73), the inner wall of the mounting frame (71) is slidably connected with a connecting frame (74), one end of the limiting spring (73) away from the cover plate (72) is fixedly connected with the surface of the connecting frame (74), the shaft rod part of the connecting frame (74) is rotatably connected with a pressure roller (75), the pressure roller (75) is in contact with the surface of the chain (5).

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