Hydraulic step pulley device

Abstract

The present application relates to a kind of hydraulic step pulling device, to solve the technical problems of current belt conveyor belt dragging displacement maintenance work, low efficiency, low safety of manual operation, including two fixed base that is symmetrically arranged along the belt axial direction.The present application installs pulling device to conveyor by fixed base, by dynamic traction seat to belt clamping contact, in the stroke of hydraulic push structure, before back, by static traction seat to belt clamping contact, fixed belt position, in the stroke of hydraulic push structure dynamic traction seat to belt clamping contact, static traction seat separates belt, in the back of hydraulic push structure static traction seat to belt clamping contact, without artificial by steel frame clamping to carry out tedious installation connection, improve operation efficiency, reduce maintenance time, improve capacity, and the stability of overall hydraulic regulation process is high relative to manual hoist pull and winch drag operation structure, simultaneously improve the safety of belt maintenance process.

Description

Technical Field

[0001] This invention relates to the field of conveyor maintenance technology, and in particular to a hydraulic stepping traction device. Background Technology

[0002] Belt conveyors are a common type of short-distance transport equipment for bulk materials. They are characterized by simple setup, convenient operation, and low maintenance costs. They can be installed in complex working environments such as coal mines, greatly reducing coal mining costs. During use, belt conveyors require regular maintenance and repair of the transmission device, as well as regular inspection, repair, and connection of the belt. Typically, the belt drive should be shut down and the belt tensioning device loosened during these periods. In particular, when repairing belts, maintaining belt joints, or replacing belts, the belt needs to be moved, which requires on-site dragging, displacement, and clamping.

[0003] Existing methods for maintaining belt conveyor belts involve simple devices such as bolted steel beam clamps, manual hoists, and winches. These methods are labor-intensive, inefficient, and unsafe, impacting the work efficiency and economic benefits of coal mines. Therefore, we propose a hydraulic stepping traction device. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art, adapt to practical needs, and provide a hydraulic stepping traction device to solve the technical problems of low efficiency and low safety of manual operation in the current maintenance work of belt conveyors by belt drag displacement.

[0005] To achieve the objectives of this invention, the technical solution adopted is as follows: A hydraulic stepping traction device is designed, comprising two fixed bases symmetrically arranged along the belt axis; wherein the gap between the two fixed bases forms an installation cavity; a traction assembly is arranged within the installation cavity, causing the belt to radially pass through the traction assembly; wherein the traction assembly includes a dynamic traction seat and a static traction seat; wherein the static traction seat is movably arranged in the installation cavity via a hydraulic pusher structure, and the dynamic traction seat is fixedly installed in the installation cavity and connected to the hydraulic pusher structure via bolt A; both the dynamic and static traction seats consist of two upper and lower arranged first and second working modules; wherein the opposing surfaces of the first and second working modules each include a static contact portion and a dynamic contact portion that movably contact the belt; wherein the static contact portion contacts the belt surface to form a clamping traction structure; wherein the dynamic contact portion contacts the belt surface to form a rolling traction structure.

[0006] Preferably, the hydraulic pushing structure includes a fixed traction guide frame and a guide sleeve; the fixed traction guide frame is arranged on the fixed base by bolt B; and the static traction seat is connected and fixed to the cylindrical end of the fixed traction guide frame by bolt C; the guide sleeve is slidably arranged on the cylindrical end of the fixed traction guide frame; and the moving traction seat is connected and fixed to the guide sleeve by bolt A; two push-pull cylinders are provided between the two fixed traction guide frames, and the fixed end of the push-pull cylinder is installed and connected to the static traction seat by bolt D, and the pushing end of the push-pull cylinder is installed and connected to the moving traction seat by mounting seat A.

[0007] Preferably, the first working module is provided with a clamping beam A on the side relatively close to the second working module; the second working module is provided with a clamping beam B on the side relatively close to the clamping beam A; wherein, the surfaces of the clamping beam A and the clamping beam B are both provided with auxiliary grooves; and the internal gap between the first working module and the second working module forms an adjustment cavity that communicates with the auxiliary groove; wherein, two sets of moving contact parts are symmetrically arranged inside the adjustment cavity through an adjustment mechanism.

[0008] Preferably, the adjustment mechanism includes an auxiliary mounting bracket, a sliding adjustment seat, a lead screw, and a servo motor; two sets of auxiliary mounting brackets are symmetrically arranged in the adjustment cavity; and the gap between each set of auxiliary mounting brackets forms an opposing drive cavity; and the surface of the auxiliary mounting bracket is provided with a horizontal groove; the sliding adjustment seat is movably arranged in the opposing drive cavity through two cam-driven pull rods; and the two cam-driven pull rods slide in cooperation with the horizontal groove; and each of the two sliding adjustment seats is provided with a traction block at one end; wherein, lead screw sleeves are provided on both sides of the traction block through bolts E; wherein, the gap between the inner walls of the two sets of lead screw sleeves forms a threaded cavity; the lead screw is arranged in the threaded cavity; and the surface of the lead screw is symmetrically provided with two sets of threaded grooves; and the two sliding adjustment seats, the two sets of threaded grooves, and the two sets of lead screw sleeves are respectively threadedly connected to the lead screw; the servo motor is arranged at the input end of the lead screw and connected to the adjustment cavity.

[0009] Preferably, the moving contact part includes an adjusting tilting frame and a drive assembly; the adjusting tilting frame is hinged to the auxiliary mounting frame via a hinge shaft A; and the surface of the adjusting tilting frame is provided with an inclined force groove; and the force groove is slidably engaged with the cam force rods located on both sides; the drive assembly is arranged at the lower end of the adjusting tilting frame.

[0010] Preferably, the drive assembly includes a drive mounting frame, a drive motor, a bidirectional brake sleeve, a rolling wheel, and a braking mechanism; the drive mounting frame is arranged at the lower end of the adjusting and tilting frame; the drive motor is arranged on one side of the drive mounting frame; and the drive motor and the lead screw are staggered; the bidirectional brake sleeve is arranged on the other side of the drive mounting frame by bolt F; wherein, the bidirectional brake sleeve has two sets of meshing teeth inside; and the two sets of meshing teeth are centrally symmetrically distributed; the rolling wheel is movably sleeved on the outer wall of the bidirectional brake sleeve; and the rolling wheel includes a rolling contact wheel body and an auxiliary wheel. The system comprises an auxiliary sliding sleeve and a drive engagement seat; wherein the auxiliary sliding sleeve and the drive engagement seat are axially and sequentially fixed to the inner wall of the rolling wheel; wherein the drive engagement seat has symmetrically arranged engagement grooves on its sides; and a hinge block is provided between two of the engagement grooves on the drive engagement seat; and the rolling contact wheel body is movably connected to the bidirectional brake sleeve through the auxiliary sliding sleeve; wherein the inner wall of the drive engagement seat has annularly spaced compression force blocks on the side closer to the drive motor; and the compression force blocks have an inclined force-bearing surface; and the braking mechanism is arranged on the drive engagement seat by bolts G.

[0011] Preferably, the braking mechanism includes a combined central rotating shaft, an angle shaft, a steering transmission block, a radial transmission block, a telescopic shaft, a bidirectional meshing block, and an axially movable sleeve; the combined central rotating shaft is arranged on the drive meshing seat by bolts G; the two angle shafts are movably arranged in an "L" structure at the cylindrical end of the combined central rotating shaft; wherein, the input end of the angle shaft is provided with a misaligned connecting groove; wherein, the gap between the output ends of the two angle shafts forms a pushing force cavity; the steering transmission block is movably arranged in the pushing force cavity; the radial transmission block is hinged to the middle end of the steering transmission block; wherein, the output end of the radial transmission block is hinged to buffer shaft A and buffer shaft B in an upper and lower position; the telescopic shaft is movably arranged on buffer shaft A and buffer shaft B respectively by spring A; the two bidirectional meshing blocks are respectively hinged to both sides of the hinge block and connected to the telescopic shaft; its In this configuration, the two bidirectional meshing blocks have unidirectional meshing protrusions at their large ends, opposite to the two sets of meshing teeth. The axially movable sleeve is movably arranged on the misaligned connecting groove. A movable sleeve extends into the combined rotating shaft via a keyed connection inside the axially movable sleeve, and the movable sleeve is fixedly connected to the combined rotating shaft. Two hinge shafts are provided on the outer wall of the axially movable sleeve. The combined centrifugal block is hinged to the hinge shafts at an obtuse angle. The combined centrifugal block consists of a pressing part and a counterweight part. The mass of the counterweight part is greater than the mass of the pressing part. A tension spring elastically connected to the axially movable sleeve is provided on the side of the counterweight part closest to the axially movable sleeve. The end of the pressing part is cylindrical. The rotation path of the pressing part intersects with the inclined force-bearing surface.

[0012] Preferably, the servo motor drives the lead screw to rotate, causing the two sets of lead screw sleeves to move closer and / or further apart, so that the two sets of adjusting and flipping frames move closer and / or unfold through the force groove, the transverse groove and the cam force rods located on both sides, so that the drive assembly forms a vertical extension adjustment state and an inclined embedding adjustment state, and the moving traction seat works through the push-pull cylinder stroke, and the clamping beam B moves closer and closer to the clamping beam A through the first working module, the second working module and the two clamping cylinders, forming a rolling traction structure and / or a clamping traction structure that contacts the belt surface.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. This invention, through the setting of a fixed base, allows the hydraulic stepping traction device to be sequentially mounted onto the conveyor. The moving traction seat clamps the belt, and the hydraulic push structure performs the stroke operation. Before the return stroke, the stationary traction seat clamps the belt to fix the belt's maintenance and adjustment position. During the stroke of the hydraulic push structure, the moving traction seat clamps the belt while the stationary traction seat disengages. During the return stroke, the stationary traction seat clamps the belt while the moving traction seat disengages. This cyclical operation method enables intermittent belt adjustment, eliminating the need for cumbersome manual clamping with steel beams, improving operational efficiency, reducing maintenance time, shortening downtime, and increasing production capacity. Furthermore, the overall hydraulic adjustment process offers higher stability compared to manual hoisting and winch-driven operations, simultaneously improving the safety of belt maintenance and enabling precise initial inspection and maintenance of the belt before use.

[0015] 2. This invention uses a servo motor to drive the lead screw to rotate, which in turn drives at least a number of moving contact subunits to adjust synchronously, thereby improving adjustment efficiency and reducing manufacturing costs. At the same time, two sliding adjustment seats, two sets of threaded grooves, and two sets of lead screw sleeves are respectively connected to the lead screw to form a self-locking effect, so as to prevent the moving contact parts from loosening and tilting under the action of external force, which would prevent the two relatively distributed moving contact parts from forming a clamping contact for conveying.

[0016] 3. This invention uses a bidirectional braking sleeve to drive the braking mechanism with a drive motor, and the auxiliary sliding sleeve and drive engagement seat are axially fixed to the inner wall of the rolling wheel to drive the rolling wheel to rotate. With this setup, the adjusting mechanism rotates the entire moving contact part simultaneously, and with the clamping operation, the two vertically distributed rolling wheels come into contact with the belt. Under the relative rotational force of the two rolling wheels, the belt is continuously adjusted for conveying. This continuous conveying adjustment of the belt facilitates a quick second inspection and maintenance after the initial maintenance.

[0017] 4. This invention uses a combination of centrifugal blocks and an axial movable sleeve hinged together. With the rotation path of the extrusion section intersecting the inclined force-bearing surface, when the rotational speed of the rolling wheel exceeds the tension of the spring, the combined centrifugal block, based on the shift of its center of gravity and the centrifugal force, causes the extrusion section of the combined centrifugal block to contact the inclined force-bearing surface. This inclined force-bearing surface forces the axial movable sleeve to move along the movable sleeve towards the drive motor, causing the movable sleeve to synchronously pull the angle shaft to rotate. The rotation of the angle shaft adjusts the steering transmission block to extrude the radial transmission block, buffer shaft A, and buffer shaft B. Spring A synchronously pushes the telescopic shaft, causing the bidirectional meshing block to rotate. This allows the unidirectional meshing protrusion to mesh with the meshing teeth in the appropriate direction. Through the above operation, when the rolling wheel is in a continuous conveying adjustment and detection state, the belt wear caused by belt slippage is reduced. When the belt breaks and moves relatively quickly during continuous conveying adjustment and detection, the rolling pulley is braked simultaneously. This effectively reduces the impact of the belt on the hydraulic stepping traction device and maintenance personnel, preventing excessive damage to the equipment and personnel. Furthermore, based on the buffer shafts A and B, two sets of telescopic shafts, spring A, and bidirectional meshing blocks, two sets of centrally symmetrically distributed meshing teeth are used to simultaneously brake the belt in two opposite directions. The buffer shafts A and B are elastically connected to the telescopic shafts via spring A, allowing the bidirectional meshing blocks, which cannot mesh in opposite directions, to have free movement and compression space. The opposing meshing teeth then actuate the bidirectional meshing blocks, simultaneously reducing the possibility of the other bidirectional meshing block adjusting in sync with the actuating teeth, preventing timely engagement and braking with the appropriate meshing teeth.

[0018] 5. By combining a rolling traction structure with a clamping traction structure, this invention enables the hydraulic stepping traction device to perform two different conveying operations: an initial, detailed inspection and maintenance before belt use, and a second, rapid review and inspection. This effectively enhances the functionality and practicality of the hydraulic stepping traction device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure for mounting and assembling the belt in this invention;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a bottom-view schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the adjustment mechanism in this invention;

[0024] Figure 6 This is a schematic diagram of the installation structure of the moving contact part and the adjustment mechanism in this invention;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the force-receiving groove in this invention;

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the driving component in this invention;

[0027] Figure 9 This is a schematic diagram of the split structure of the driving component in this invention;

[0028] Figure 10 This is a schematic diagram of the cross-sectional structure of the rolling wheel in this invention;

[0029] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 12 This is a schematic diagram of the installation structure of the bidirectional meshing block and the hinge block in this invention;

[0031] Figure 13 This is a schematic diagram of the disassembled structure of the braking mechanism in this invention;

[0032] Figure 14 This is a top view of the internal structure of the braking mechanism in this invention;

[0033] Figure 15 This is a three-dimensional structural diagram of the braking mechanism in this invention;

[0034] Figure 16 This is a schematic diagram of the three-dimensional structure of the bidirectional meshing block in this invention;

[0035] Figure 17 This is a schematic diagram of the bidirectional meshing block unidirectional meshing braking operation structure in this invention.

[0036] In the diagram: 1. Fixed base; 2. Traction assembly; 3. Moving traction seat; 4. Static traction seat; 5. Hydraulic pushing structure; 6. First working module; 7. Second working module; 8. Static contact part; 9. Moving contact part; 10. Adjustment mechanism; 11. Clamping cylinder;

[0037] 501. Fixed traction guide frame; 502. Guide sleeve; 503. Push-pull cylinder;

[0038] 601. Plywood beam A;

[0039] 701. Plywood beam B;

[0040] 1001. Auxiliary mounting bracket; 1002. Horizontal groove; 1003. Sliding adjustment seat; 10031. Traction block; 1004. Cam force-bearing tie rod; 1005. Lead screw sleeve; 1006. Lead screw; 1007. Servo motor;

[0041] 901. Adjustable tilting frame; 902. Force-receiving groove; 903. Drive assembly;

[0042] 904. Drive mounting bracket; 905. Drive motor; 906. Bidirectional brake sleeve; 9061. Meshing gear assembly; 907. Rolling wheel; 9071. Rolling contact wheel body; 9072. Auxiliary sliding sleeve; 9073. Drive meshing seat; 9074. Pressing force block; 9075. Hinge block; 9076. Inclined force-bearing surface; 908. Braking mechanism;

[0043] 9081, Combined central pivot shaft; 9082, Angle shaft; 9083, Misaligned connecting groove; 9084, Steering transmission block; 9085, Radial transmission block; 9087, Telescopic shaft; 9088, Bidirectional meshing block; 9089, Axial movable sleeve; 90810, Movable sleeve; 90811, Combined centrifugal block; 90812, Tension spring. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0045] Example 1: A hydraulic stepping traction device, see [link to example]. Figures 1 to 17The system includes two fixed bases 1 symmetrically arranged along the belt axis; the gap between the two fixed bases 1 forms a mounting cavity; a traction assembly 2 is arranged in the mounting cavity, causing the belt to pass radially through the traction assembly 2; the traction assembly 2 includes a moving traction seat 3 and a stationary traction seat 4; the stationary traction seat 4 is movably arranged in the mounting cavity via a hydraulic push structure 5, and the moving traction seat 3 is fixed in the mounting cavity and connected to the hydraulic push structure 5 via bolts A; both the moving traction seat 3 and the stationary traction seat 4 are composed of two upper and lower arranged first working modules 6 and second working modules 7; the opposing surfaces of the first working module 6 and the second working module 7 each include a stationary contact portion 8 and a moving contact portion 9 that are in contact with the belt; the stationary contact portion 8 contacts the belt surface to form a clamping traction structure; and the moving contact portion 9 contacts the belt surface to form a rolling traction structure. This invention, through the setting of the fixed base 1, allows the hydraulic stepping belt traction device to be sequentially mounted onto the conveyor. The moving traction seat 3 clamps and contacts the belt, and the hydraulic pushing structure 5 performs the stroke operation. Before the return stroke, the stationary traction seat 4 clamps and contacts the belt to fix the belt's maintenance and adjustment position. During the stroke operation of the hydraulic pushing structure 5, the moving traction seat 3 clamps and contacts the belt, while the stationary traction seat 4 disengages. During the return stroke of the hydraulic pushing structure 5, the stationary traction seat 4 clamps and contacts the belt, while the moving traction seat 3 disengages. This cyclical operation method enables intermittent belt adjustment, eliminating the need for cumbersome manual clamping with steel beams, improving operational efficiency, reducing maintenance time, shortening downtime, and increasing production capacity. Furthermore, the overall hydraulic adjustment process offers higher stability compared to manual hoisting and winch-driven operations, simultaneously improving the safety of belt maintenance and enabling precise initial inspection and maintenance of the belt before use.

[0046] Specifically, the hydraulic pushing structure 5 includes a fixed traction guide frame 501 and a guide sleeve 502; the fixed traction guide frame 501 is mounted on the fixed base 1 by bolts B; and the static traction seat 4 is fixedly connected to the cylindrical end of the fixed traction guide frame 501 by bolts C; the guide sleeve 502 is slidably arranged on the cylindrical end of the fixed traction guide frame 501; and the moving traction seat 3 is fixedly connected to the guide sleeve 502 by bolts A; at least one push-pull cylinder 503 is provided between the two fixed traction guide frames 501, and the fixed end of the push-pull cylinder 503 is installed and connected to the static traction seat 4 by bolts D, and the pushing end of the push-pull cylinder 503 is installed and connected to the moving traction seat 3 by mounting seat A. This invention, through the fixed traction guide frame 501 and guide sleeve 502, enables the push-pull cylinder 503 to provide auxiliary support during the return stroke.

[0047] Furthermore, the first working module 6 has a clamping beam A601 on the side relatively close to the second working module 7; the second working module 7 has a clamping beam B701 on the side relatively close to the clamping beam A601; both clamping beams A601 and B701 have auxiliary grooves on their surfaces; and the internal gap between the first working module 6 and the second working module 7 forms an adjustment cavity that communicates with the auxiliary grooves; wherein at least one set of moving contact parts 9 are symmetrically arranged inside the adjustment cavity through the adjustment mechanism 10. This invention, by connecting the adjustment cavity with the auxiliary grooves, allows the adjustment mechanism 10 to rotatably drive the moving contact parts 9 to protrude, thereby realizing the adjustment of the clamping traction structure and the rolling traction structure.

[0048] Furthermore, the adjustment mechanism 10 includes an auxiliary mounting bracket 1001, a sliding adjustment seat 1003, a lead screw 1006, and a servo motor 1007; two sets of auxiliary mounting brackets 1001 are symmetrically arranged in the adjustment cavity; and the gap between each set of auxiliary mounting brackets 1001 forms an opposing drive cavity; and the surface of the auxiliary mounting bracket 1001 is provided with a horizontal groove 1002; the sliding adjustment seat 1003 is movably arranged in the opposing drive cavity through two cam-driven pull rods 1004; and the two cam-driven pull rods 1004 are slidably engaged with the groove 1002; and Two sliding adjustment seats 1003 are each provided with a traction block 10031 at one end; a lead screw sleeve 1005 is provided on both sides of the traction block 10031 by bolt E; the gap between the inner walls of the two sets of lead screw sleeves 1005 forms a threaded cavity; the lead screw 1006 is arranged in the threaded cavity; and two sets of threaded grooves are symmetrically opened on the surface of the lead screw 1006; the two sliding adjustment seats 1003, the two sets of threaded grooves, and the two sets of lead screw sleeves 1005 are respectively threadedly connected to the lead screw 1006; a servo motor 1007 is arranged at the input end of the lead screw 1006 and connected to the adjustment cavity. This invention uses a servo motor 1007 to drive the lead screw 1006 to rotate, so that the lead screw 1006 synchronously drives at least a plurality of moving contact parts 9 subunits to adjust, thereby improving adjustment efficiency and manufacturing cost. At the same time, two sliding adjustment seats 1003, two sets of threaded grooves, and two sets of lead screw sleeves 1005 are respectively threadedly connected to the lead screw 1006 to form a self-locking effect, so as to prevent the moving contact parts 9 from loosening and tilting under the action of external force, which would prevent the two relatively distributed moving contact parts 9 from forming a clamping contact effect for conveying.

[0049] It is worth noting that the moving contact part 9 includes an adjusting tilting frame 901 and a drive assembly 903; the adjusting tilting frame 901 is hinged to the auxiliary mounting frame 1001 via a hinge shaft A; and the surface of the adjusting tilting frame 901 is provided with an inclined force groove 902; and the force groove 902 is slidably engaged with the cam force-bearing rods 1004 located on both sides; the drive assembly 903 is arranged at the lower end of the adjusting tilting frame 901. This invention uses the inclined force groove 902 to achieve horizontal traction adjustment via the cam force-bearing rods 1004, and the inclined arrangement of the force groove 902 allows the adjusting tilting frame 901 to be rotated as a whole.

[0050] It is worth noting that the drive assembly 903 includes a drive mounting bracket 904, a drive motor 905, a bidirectional brake sleeve 906, a rolling wheel 907, and a braking mechanism 908; the drive mounting bracket 904 is arranged at the lower end of the adjusting tilting frame 901; the drive motor 905 is arranged on one side of the drive mounting bracket 904; and the drive motor 905 and the lead screw 1006 are staggered; the bidirectional brake sleeve 906 is arranged on the other side of the drive mounting bracket 904 by bolt F; wherein, the bidirectional brake sleeve 906 has two sets of meshing teeth 9061 inside; and the two sets of meshing teeth 9061 are centrally symmetrically distributed; the rolling wheel 907 is movably sleeved on the outer wall of the bidirectional brake sleeve 906; and the rolling wheel 907 includes a rolling contact wheel body 9071 and an auxiliary sliding body 907. The auxiliary sliding sleeve 9072 and the drive engagement seat 9073 are axially fixed to the inner wall of the rolling wheel 907. The drive engagement seat 9073 has symmetrical meshing grooves on its sides. A hinge block 9075 is provided between the two meshing grooves of the drive engagement seat 9073. The rolling contact wheel 9071 is movably connected to the bidirectional brake sleeve 906 through the auxiliary sliding sleeve 9072. The inner wall of the drive engagement seat 9073 has annularly spaced pressing force blocks 9074 on the side closer to the drive motor 905. The pressing force blocks 9074 have an inclined force-bearing surface 9076. The braking mechanism 908 is arranged on the drive engagement seat 9073 by bolts G. This invention utilizes a bidirectional braking sleeve 906, which, in conjunction with a drive motor 905, drives a braking mechanism 908. Furthermore, an auxiliary sliding sleeve 9072 and a drive engagement seat 9073 are axially fixed to the inner wall of the rolling wheel 907, driving the rolling wheel 907 to rotate. This configuration simultaneously utilizes an adjustment mechanism 10 to rotate the entire moving contact part 9, and with a clamping operation, ensures that the two vertically distributed rolling wheels 907 contact the belt. Under the relative rotational force of the two rolling wheels 907, the belt is continuously adjusted for conveying. This continuous belt conveying adjustment facilitates a quick secondary inspection and maintenance after the initial overhaul.

[0051] It is worth mentioning that the braking mechanism 908 includes a combined central shaft 9081, angle shafts 9082, a steering transmission block 9084, a radial transmission block 9085, a telescopic shaft 9087, a bidirectional meshing block 9088, and an axially movable sleeve 9089; the combined central shaft 9081 is arranged on the drive meshing seat 9073 by bolts G; the two angle shafts 9082 are movably arranged in an "L" structure at the cylindrical end of the combined central shaft 9081; wherein, the input end of the angle shaft 9082 is provided with a staggered connection. The connecting groove 9083; wherein, the gap between the output ends of the two angle shafts 9082 forms a pushing force cavity; the steering transmission block 9084 is movably arranged in the pushing force cavity; the radial transmission block 9085 is hinged to the middle end of the steering transmission block 9084; wherein, the output end of the radial transmission block 9085 is hinged to buffer shaft A and buffer shaft B in an upper and lower position; the telescopic shaft 9087 is movably arranged on buffer shaft A and buffer shaft B respectively through spring A; two bidirectional meshing blocks 9088 are respectively hinged to the hinge block 907. 5. A telescopic shaft 9087 is connected to both sides; two bidirectional meshing blocks 9088 have unidirectional meshing protrusions at their large ends relative to the two sets of meshing teeth 9061; an axial movable sleeve 9089 is movably arranged on a misaligned connecting groove 9083; a movable sleeve 90810 is keyed inside the axial movable sleeve 9089 and extends into the combined central shaft 9081; and the movable sleeve 90810 is fixedly connected to the combined central shaft 9081; the axial movable sleeve 9089... The outer wall is provided with at least one hinge shaft; the combined centrifugal block 90811 is hinged to the hinge shaft at an obtuse angle; the combined centrifugal block 90811 is composed of a pressing part and a counterweight part; and the mass of the counterweight part is greater than the mass of the pressing part; the counterweight part is provided with a tension spring 90812 elastically connected to the axial movable sleeve 9089 on the side relatively close to the axial movable sleeve 9089; the end of the pressing part is cylindrical; and the rotation path of the pressing part intersects with the inclined force-bearing surface 9076.In this invention, the centrifugal block 90811 is hinged to the axially movable sleeve 9089. With the rotational path of the extrusion section intersecting the inclined force-bearing surface 9076, when the rotational speed of the rolling wheel 907 exceeds the tension of the tension spring 90812, the centrifugal block 90811, due to the shift of its center of gravity and the centrifugal force, causes the extrusion section of the centrifugal block 90811 to contact the inclined force-bearing surface 9076. The inclined force-bearing surface 9076 forces the axially movable sleeve 9089 along the movable sleeve... The cylinder 90810 moves closer to the drive motor 905, causing the movable sleeve 90810 to synchronously pull the angle shaft 9082 to rotate. The rotation of the angle shaft 9082 adjusts the steering transmission block 9084 to press against the radial transmission block 9085, buffer shaft A, and buffer shaft B. Spring A synchronously pushes the telescopic shaft 9087, causing the bidirectional meshing block 9088 to rotate. This allows the unidirectional meshing protrusion to engage with the meshing tooth set 9061 in the appropriate direction. Through the above operations, when the rolling wheel 907 is in motion... During continuous conveying adjustment and testing, to reduce the risk of belt breakage and rapid adjustment during continuous conveying adjustment and testing, the rolling pulley 907 is simultaneously braked. This effectively reduces the risk of the belt impacting the hydraulic stepping traction device and maintenance personnel, thus minimizing excessive damage to the device and personnel. Furthermore, based on the buffer shafts A and B, and the two sets of telescopic shafts 9087, spring A, and bidirectional meshing blocks 9088, two sets of centrally symmetrically distributed meshing teeth 9061 are configured to respectively brake the belt... The system features synchronous braking operation in two opposing directions. Furthermore, buffer shafts A and B are elastically connected to telescopic shaft 9087 via spring A, allowing bidirectional engagement blocks 9088, which cannot mesh in opposite directions, to have free movement and compression space. The opposing meshing gear set 9061 actuates the bidirectional engagement block 9088, simultaneously reducing the situation where the adjustment of the bidirectional engagement block 9088 is synchronized with the adjustment of the other bidirectional engagement block 9088, preventing timely engagement and braking with the appropriate meshing gear set 9061.

[0052] It is worth emphasizing that the servo motor 1007 drives the lead screw 1006 to rotate, causing the two sets of lead screw sleeves 1005 to move closer and / or further apart. This causes the two sets of adjusting and tilting frames 901 to move closer and / or unfold through the force groove 902, the transverse groove 1002, and the cam force-bearing rods 1004 located on opposite sides. This results in the drive assembly 903 being in a vertical extension adjustment state and an inclined embedding adjustment state. The moving traction seat 3 operates through the stroke of the push-pull cylinder 503, and the clamping beam B701 moves closer and closer to the clamping beam A601 through the first working module 6, the second working module 7, and at least one clamping cylinder 11, forming a rolling traction structure and / or a clamping traction structure that contacts the belt surface. This invention, through the combination of rolling and clamping traction structures, enables the hydraulic stepping traction device to perform two different conveying operations: initial focused inspection and maintenance before belt use, and a second rapid review and inspection. This effectively enhances the functionality and practicality of the hydraulic stepping traction device.

[0053] Working principle: The fixed base 1 is installed on the conveyor; then the fixed traction guide frame 501 and guide sleeve 502 are installed in sequence; next, the static traction seat 4 is installed and fixed to the end of the fixed traction guide frame 501; then the dynamic traction seat 3 is installed on the guide sleeve 502; when performing clamping traction work for the first time, the clamping cylinder 11 located on the dynamic traction seat 3 returns, causing the second working module 7 of the dynamic traction seat 3 to descend as follows. Figure 1The device clamps the belt, and then the push-pull cylinder 503 moves the moving traction seat 3 by clamping the belt. The clamping cylinder 11 on the moving traction seat 3 then raises the second working module 7, while the clamping cylinder 11 on the stationary traction seat 4 returns, causing the second working module 7 to descend. The push-pull cylinder 503 then returns, resetting the moving traction seat 3. This cyclical operation allows for intermittent belt adjustment. Maintenance personnel observe the belt and can stop the hydraulic stepping traction device at any time for belt repair. During a second rapid inspection and maintenance operation involving rolling traction, the servo motor 100... 7. The drive screw 1006 rotates, causing the sliding adjustment seat 1003 to move linearly. Horizontal traction adjustment is achieved via the inclined force groove 902 and the cam-driven pull rod 1004. The inclined force groove 902 allows the adjustment tilting frame 901 to rotate, causing the rotating drive contact part 9 to protrude. Then, the clamping cylinder 11 lowers the second working modules 7 of the moving traction seat 3 and the stationary traction seat 4, causing the rolling wheel 907 to engage with the belt. The drive motor 905 then drives the drive engagement seat 9073 to rotate, causing the rolling wheel 907 to rotate and the belt to move continuously. Maintenance personnel observe the belt and monitor its movement. The hydraulic stepping traction device is stopped to repair the belt. If the belt breaks due to tension during continuous operation, the contact between the roller 907 and the belt will synchronously accelerate the rotation of the roller 907. When the rotational speed of the roller 907 exceeds the tension of the tension spring 90812, the combined centrifugal block 90811, due to the shift of its center of gravity and the centrifugal force of rotation, will cause the pressing part of the combined centrifugal block 90811 to contact the inclined force-bearing surface 9076. The inclined force-bearing surface 9076 will force the axial movable sleeve 9089 to move along the movable sleeve 90810 towards the drive motor 905, so that the movable sleeve 90810 will synchronously pull the angle shaft 9082 to rotate. The rotation of the angle shaft 9082 causes the steering transmission block 9084 to press against the radial transmission block 9085, buffer shaft A, and buffer shaft B. Simultaneously, spring A pushes the telescopic shaft 9087, causing the bidirectional meshing block 9088 to rotate. This allows the unidirectional meshing protrusion to engage with the meshing tooth set 9061 in the appropriate direction. Through this operation, when the rolling wheel 907 is in continuous conveying adjustment and detection mode, the risk of belt breakage and rapid adjustment movement during continuous conveying adjustment and detection is reduced. Simultaneously, the rolling wheel 907 is braked, effectively reducing the risk of the belt impacting the hydraulic stepping traction device and maintenance personnel, thus minimizing excessive damage to the device and personnel.

[0054] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A hydraulic stepping traction device, characterized in that, It includes two fixed bases (1) arranged symmetrically along the belt axis; The gap between the two fixed bases (1) forms a mounting cavity; The traction assembly (2) is arranged in the mounting cavity such that the belt passes radially through the traction assembly (2). The traction assembly (2) includes a dynamic traction seat (3) and a static traction seat (4). The static traction seat (4) is movably arranged in the mounting cavity through the hydraulic push structure (5), and the dynamic traction seat (3) is fixed in the mounting cavity and connected to the hydraulic push structure (5) by bolt A. Both the dynamic traction seat (3) and the static traction seat (4) are composed of two upper and lower arranged first working modules (6) and second working modules (7); Among them, the first working module (6) and the second working module (7) each have a static contact part (8) and a dynamic contact part (9) that are in contact with the belt on their opposite surfaces. The first working module (6) is provided with a clamping beam A (601) on the side relatively close to the second working module (7); the second working module (7) is provided with a clamping beam B (701) on the side relatively close to the clamping beam A (601); wherein, the surfaces of the clamping beam A (601) and the clamping beam B (701) are both provided with auxiliary grooves; and, the internal gap between the first working module (6) and the second working module (7) forms an adjustment cavity that communicates with the auxiliary groove; wherein, at least one set of moving contact parts (9) are symmetrically arranged inside the adjustment cavity through the adjustment mechanism (10); The adjustment mechanism (10) includes an auxiliary mounting bracket (1001), a sliding adjustment seat (1003), a lead screw (1006), and a servo motor (1007). Two sets of auxiliary mounting brackets (1001) are symmetrically arranged in the adjustment cavity; and the gap between each set of auxiliary mounting brackets (1001) forms an opposing drive cavity; and the surface of the auxiliary mounting bracket (1001) is provided with a horizontal groove (1002); the sliding adjustment seat (1003) is movably arranged in the opposing drive cavity through two cam-driven tie rods (1004); and the two cam-driven tie rods (1004) are slidably engaged with the groove (1002); The moving contact part (9) includes an adjusting tilting frame (901) and a drive assembly (903); the adjusting tilting frame (901) is hinged to the auxiliary mounting frame (1001) via a hinge shaft A; and the adjusting tilting frame (901) has an inclined force groove (902) on its surface; and the force groove (902) is slidably engaged with the cam force rods (1004) located on both sides. The drive assembly (903) is located at the lower end of the adjustable tilting frame (901); The static contact part (8) contacts the belt surface to form a clamping traction structure; The moving contact part (9) contacts the belt surface to form a rolling traction structure.

2. The hydraulic stepping traction device as described in claim 1, characterized in that, The hydraulic push structure (5) includes a fixed traction guide frame (501) and a guide sleeve (502). The fixed traction guide frame (501) is arranged on the fixed base (1) by bolt B; and the static traction seat (4) is connected and fixed to the cylindrical end of the fixed traction guide frame (501) by bolt C; the guide sleeve (502) is slidably arranged on the cylindrical end of the fixed traction guide frame (501); and the moving traction seat (3) is connected and fixed to the guide sleeve (502) by bolt A; at least one push-pull cylinder (503) is provided between the two fixed traction guide frames (501), and the fixed end of the push-pull cylinder (503) is installed and connected to the static traction seat (4) by bolt D, and the pushing end of the push-pull cylinder (503) is installed and connected to the moving traction seat (3) by mounting seat A.

3. The hydraulic stepping traction device as described in claim 2, characterized in that, Each of the two sliding adjustment seats (1003) is provided with a traction block (10031) at one end; wherein, a screw thread sleeve (1005) is provided on both sides of the traction block (10031) by bolt E; wherein, the gap between the inner walls of the two sets of screw thread sleeves (1005) forms a threaded cavity; the screw (1006) is arranged in the threaded cavity; and, two sets of threaded grooves are symmetrically opened on the surface of the screw (1006); and the two sliding adjustment seats (1003), the two sets of threaded grooves, and the two sets of screw thread sleeves (1005) are respectively threadedly connected to the screw (1006); the servo motor (1007) is arranged at the input end of the screw (1006) and connected to the adjustment cavity.

4. The hydraulic stepping traction device as described in claim 3, characterized in that, The drive assembly (903) includes a drive mounting bracket (904), a drive motor (905), a bidirectional brake sleeve (906), a rolling wheel (907), and a braking mechanism (908). The drive mounting bracket (904) is arranged at the lower end of the adjusting tilting bracket (901); the drive motor (905) is arranged on one side of the drive mounting bracket (904); and the drive motor (905) and the lead screw (1006) are staggered; the bidirectional brake sleeve (906) is arranged on the other side of the drive mounting bracket (904) by bolt F; wherein, the bidirectional brake sleeve (906) is provided with two sets of meshing teeth (9061) inside; and the two sets of meshing teeth (9061) are centrally symmetrically distributed; the rolling wheel (907) is movably sleeved on the outer wall of the bidirectional brake sleeve (906); and the rolling wheel (907) includes a rolling contact wheel body (9071), an auxiliary sliding sleeve (9072), and a drive engagement seat (9073); wherein, the auxiliary sliding sleeve (9071) is arranged on one side of the drive mounting bracket (904); and the drive motor (905 ... 9072) and drive engagement seat (9073) are axially fixed to the inner wall of the rolling wheel (907); wherein, the drive engagement seat (9073) is provided with engagement grooves symmetrically on its side; and, a hinge block (9075) is provided between the two engagement grooves of the drive engagement seat (9073); and, the rolling contact wheel body (9071) is movably connected to the bidirectional brake sleeve (906) through an auxiliary sliding sleeve (9072); wherein, the inner wall of the drive engagement seat (9073) is provided with compression force blocks (9074) arranged in an annular pattern at equal intervals on the side closer to the drive motor (905); and, the compression force blocks (9074) have an inclined force-bearing surface (9076); the braking mechanism (908) is arranged on the drive engagement seat (9073) by bolt G.

5. The hydraulic stepping traction device as described in claim 4, characterized in that, The braking mechanism (908) includes a combined central pivot shaft (9081), an angle shaft (9082), a steering transmission block (9084), a radial transmission block (9085), a telescopic shaft (9087), a bidirectional engagement block (9088), and an axially movable sleeve (9089); the combined central pivot shaft (9081) is arranged on the drive engagement seat (9073) by bolts G; the two angle shafts (9082) are movably arranged in an "L" structure at the cylindrical end of the combined central pivot shaft (9081); wherein, the input end of the angle shaft (9082) is provided with a misaligned connecting groove (90... 83); wherein, the gap between the output ends of the two angle shafts (9082) forms a pushing force cavity; the steering transmission block (9084) is movably arranged in the pushing force cavity; the radial transmission block (9085) is hinged to the middle end of the steering transmission block (9084); wherein, the output end of the radial transmission block (9085) is hinged to buffer shaft A and buffer shaft B in an upper and lower position; the telescopic shaft (9087) is movably arranged on the buffer shaft A and buffer shaft B respectively through spring A; the two bidirectional meshing blocks (9088) are respectively hinged to both sides of the hinge block (9075). Connect the telescopic shaft (9087); wherein, the two bidirectional meshing blocks (9088) have unidirectional meshing protrusions at their large ends relative to the two sets of meshing teeth (9061); the axial movable sleeve (9089) is movably arranged on the misaligned connecting groove (9083); wherein, the axial movable sleeve (9089) is keyed to a movable sleeve (90810) extending into the combined rotating shaft (9081); and, the movable sleeve (90810) is fixedly connected to the combined rotating shaft (9081); wherein, the axial movable sleeve (9087) is connected to the telescopic shaft (9087); 089) At least one hinge shaft is provided on the outer wall; the combined centrifugal block (90811) is hinged to the hinge shaft at an obtuse angle; wherein the combined centrifugal block (90811) is composed of a pressing part and a counterweight part; and the mass of the counterweight part is greater than the mass of the pressing part; wherein the counterweight part is provided with a tension spring (90812) elastically connected to the axial movable sleeve (9089) on the side relatively close to the axial movable sleeve (9089); wherein the end of the pressing part is cylindrical; wherein the rotation path of the pressing part intersects with the inclined force-bearing surface (9076).

6. The hydraulic stepping traction device as described in claim 5, characterized in that, The servo motor (1007) drives the lead screw (1006) to rotate, causing the two sets of lead screw sleeves (1005) to move closer and / or further apart, so that the two sets of adjustment and flipping frames (901) move closer and / or unfold through the force groove (902), the transverse groove (1002) and the cam force pull rods (1004) located on both sides, so that the drive assembly (903) forms a vertical extension adjustment state and an inclined embedding adjustment state, and the dynamic traction seat (3) works through the stroke of the push-pull cylinder (503), and the clamping beam B (701) moves closer and closer to the clamping beam A (601) through the first working module (6), the second working module (7), and at least one clamping cylinder (11), forming a rolling traction structure and / or a clamping traction structure that contacts the belt surface.

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