Hydraulic belt correcting device

Abstract

The utility model relates to a hydraulic belt correcting device, and relates to the technical field of belt conveyor auxiliary equipment. Comprising a deviation rectifying carrier roller set and a carrier roller installation frame, a rotating seat connected with the deviation rectifying carrier roller set is installed in the middle of the carrier roller installation frame, a left side pump frame and a right side pump frame are symmetrically installed at the two ends of a driver installation frame, and a left side hydraulic pump and a right side hydraulic pump are installed on the left side pump frame and the right side pump frame respectively. A hydraulic oil tank is installed on the driver installation frame, the telescopic end of the deviation adjusting oil cylinder is hinged to a driving rod on the deviation correcting carrier roller set, and the left side detection driving wheel, the right side detection driving wheel, the hydraulic oil tank and the deviation adjusting oil cylinder are communicated with the integrated valve block through corresponding oil pipes. The belt deviation correcting device has the advantages that belt deviation is automatically detected and corrected, the belt runs in a reasonable state all the time, circularly flowing hydraulic oil can take away heat generated by a hydraulic pump, the heat dissipation effect of a hydraulic system is enhanced, and preventive control over overheating of the hydraulic pump is achieved.

Description

Technical Field

[0001] The utility model relates to a hydraulic belt correction device, belonging to the technical field of belt conveyor auxiliary equipment. Background Art

[0002] At present, during the operation of belt conveyors, belt deviation may occur due to improper installation, operational failure, material impact, load changes, uneven elongation between belt sections, etc. The traditional practice is to stop the conveyor and manually adjust it, which is not only inefficient but also very inconvenient to adjust.

[0003] Patent No. 201320853639.5 discloses an automatic belt hydraulic deflection corrector, comprising a deflection correcting roller assembly with a rotating shaft positioned at its center point. The shaft is secured within a bearing supported by an intermediate frame and connected to a hydraulic angler through a small hole below the rotating shaft. The output shaft of the hydraulic angler is inserted into the hole. The two ends of the hydraulic angler are connected to a reversing slide valve via hoses. The two ends of the reversing slide valve are connected to an oil block via hoses. A check and drive wheel is secured above the oil block, and a hydraulic pump and oil tank are secured below the oil block. The output shaft of the check and drive wheel passes through the oil block and is directly connected to the hydraulic pump. This utility model utilizes a hydraulic angler drive instead of the traditional cylinder drive. The cylindrical housing of the hydraulic angler facilitates machining and reduces mass production costs. Due to the hydraulic angler's structural features, all relatively moving components are located within the housing, effectively preventing dust intrusion and extending the equipment's service life.

[0004] The current technical considerations are not comprehensive and have the following disadvantages: In the above patent, the two sets of hydraulic pumps take oil from the corresponding oil storage tanks respectively. The two sets of oil storage tanks are small in size, and the hydraulic pumps operate frequently. When the hydraulic pumps run at high speed for a long time, the flow rate of the oil accelerates and the heat generated by friction increases, which leads to an increase in the oil temperature, and then the hydraulic pump overheats, which seriously affects its normal operation and service life.

[0005] In order to solve one of the above problems, a hydraulic belt correction device is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: how to achieve preventive control of hydraulic pump overheating by adding an independent hydraulic oil tank and cooperating with an integrated valve block, and to provide a hydraulic belt correction device for this purpose.

[0007] The hydraulic belt correction device described in the utility model comprises a correction roller group and a roller mounting frame, wherein a rotating seat connected to the correction roller group is installed in the middle of the roller mounting frame, and a driver that can drive the correction roller group to rotate around the rotation center line of the rotating seat is fixed on one side of the roller mounting frame, and the driver changes the angle between the correction roller group and the roller mounting frame, and is characterized in that: the driver comprises a driver mounting frame and an adjustment oil cylinder, and a left pump frame and a right pump frame are symmetrically installed at both ends of the driver mounting frame, and a left hydraulic pump and a right hydraulic pump are respectively installed on the left pump frame and the right pump frame, a left inspection drive wheel is installed on the power input shaft of the left hydraulic pump, and a right inspection drive wheel is installed on the power input shaft of the right hydraulic pump, and a hydraulic oil tank is installed on the driver mounting frame, and the telescopic end of the adjustment oil cylinder is hinged to the drive rod on the correction roller group, and the left inspection drive wheel, the right inspection drive wheel, the hydraulic oil tank, and the adjustment oil cylinder are respectively connected to the integrated valve block through corresponding oil pipes.

[0008] When the belt runs in the center, it does not contact the left or right inspection and drive wheels, indicating normal operation. If the belt deviates to the left, the left inspection and drive wheel will generate reverse thrust to prevent the belt from deviating further. The belt will also drive the left inspection and drive wheel to rotate, starting the left hydraulic pump and cooperating with the integrated valve block to control the extension of the deviation adjustment cylinder. The deviation adjustment cylinder drives the deviation correction roller group to rotate around the rotation centerline of the swivel seat, and the deviation correction roller group drives the belt to run to the right and center.

[0009] On the contrary, if the belt deviates to the right when running, the right side of the detection and drive wheel will generate reverse thrust to prevent the belt from deviating further, and the belt will drive the right detection and drive wheel to rotate, start the right hydraulic pump, and cooperate with the integrated valve block to control the retraction of the deviation adjustment cylinder. The deviation adjustment cylinder drives the deviation correction roller group to rotate around the rotation center line of the rotating seat, and the deviation correction roller group drives the belt to run to the left and center.

[0010] Preferably, both the left hydraulic pump and the right hydraulic pump are bidirectional pumps.

[0011] Preferably, the integrated valve block is integrated with a one-way valve A, a one-way valve B, a one-way valve C, a one-way valve D, a first hydraulically controlled one-way valve and a second hydraulically controlled one-way valve. The first oil outlet pipe A of the left hydraulic pump and the first oil outlet pipe B of the right hydraulic pump are connected to the rod chamber of the deviation adjustment cylinder after merging. The second oil outlet pipe A of the left hydraulic pump and the second oil outlet pipe B of the right hydraulic pump are connected to the rodless chamber of the deviation adjustment cylinder after merging. The first oil outlet pipe A, the first oil outlet pipe B, the second oil outlet pipe A and the second oil outlet pipe B are respectively installed with a one-way valve A, a one-way valve B, a one-way valve C and a one-way valve D for limiting the flow of hydraulic oil to the deviation adjustment cylinder. One end of the first branch oil return pipe is connected to the oil pipe between the one-way valve A and the one-way valve C, and a first hydraulically controlled one-way valve is installed on the first branch oil return pipe. One end of the first branch oil return pipe is connected to the oil pipe between the one-way valve B and the one-way valve D, and a second hydraulically controlled one-way valve is installed on the first branch oil return pipe. The other ends of the first branch oil return pipe and the second branch oil return pipe are both connected to the hydraulic oil tank, and the hydraulic control ports of the first hydraulically controlled one-way valve and the second hydraulically controlled one-way valve are connected to the oil circuit connected to the rodless chamber of the deviation adjusting cylinder, and the hydraulic control port of the second hydraulically controlled one-way valve is connected to the oil circuit connected to the rod chamber of the deviation adjusting cylinder.

[0012] Preferably, the roller mounting frame and the driver mounting frame are fixedly connected via two sets of connecting beams, the two sets of connecting beams are parallel to each other and spaced apart, and the cylinder body of the deviation adjustment cylinder is hinged on any one set of connecting beams.

[0013] Preferably, the right pump frame includes a vertical steel plate hinged to the driver mounting frame, the right hydraulic pump is mounted on the vertical steel plate, a horizontal steel plate is mounted on the other side of the vertical steel plate, and a buffer is provided between the horizontal steel plate and the driver mounting frame, with the upper and lower ends of the buffer hinged to the horizontal steel plate and the driver mounting frame, respectively, to reduce damage to the device caused by the belt striking the left or right detection and drive pulleys.

[0014] Preferably, the left pump frame and the right pump frame have the same structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The hydraulic belt correction device described in the utility model automatically detects belt deviation and corrects it, so that the belt always runs in a reasonable state, thereby offsetting the phenomena of the belt conveyor caused by improper installation, operation failure, special material impact, load change, uneven elongation between belt sections, etc.

[0017] The hydraulic belt correction device described in the utility model relies on the friction rotation of the belt to generate power, so it does not require power supply, automatically adjusts and corrects, has the characteristics of simple structure, reliable performance, easy installation, etc., and can work normally in any harsh environment.

[0018] The hydraulic belt correction device described in the utility model is equipped with an independent hydraulic oil tank and an integrated valve block. The circulating hydraulic oil can take away the heat generated by the hydraulic pump, while enhancing the heat dissipation effect of the hydraulic system and realizing preventive control of overheating of the hydraulic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of the right pump frame of the utility model;

[0022] Figure 3 This is the hydraulic control diagram of the integrated valve block.

[0023] In the figure: 1, deviation-correcting roller group 2, roller mounting frame 3, driver mounting frame 4, left pump frame 5, right pump frame 5.1, vertical steel plate 5.2, horizontal steel plate 5.3, buffer 6, left hydraulic pump 7, right hydraulic pump 8, left detection and drive wheel 9, right detection and drive wheel 10, hydraulic oil tank 11, deviation adjustment cylinder 12, connecting beam 13, integrated valve block 13.1, check valve A 13.2, check valve B 13.3, check valve C 13.4, check valve D 13.5, first hydraulic-controlled check valve 13.6, second hydraulic-controlled check valve. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] The present invention is further described below through specific embodiments, but is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0026] Example 1, as Figure 1As shown, the hydraulic belt correction device includes a correction roller group 1 and a roller mounting frame 2, a rotating seat connected to the correction roller group 1 is installed in the middle of the roller mounting frame 2, and a driver that can drive the correction roller group 1 to rotate around the rotation center line of the rotating seat is fixed on one side of the roller mounting frame 2. The driver changes the angle between the correction roller group 1 and the roller mounting frame 2, and the driver includes a driver mounting frame 3 and a deviation adjustment cylinder 11. The left pump frame 4 and the right pump frame are symmetrically installed at both ends of the driver mounting frame 3. 5. A left hydraulic pump 6 and a right hydraulic pump 7 are respectively installed on the left pump frame 4 and the right pump frame 5. A left detection and drive wheel 8 is installed on the power input shaft of the left hydraulic pump 6, and a right detection and drive wheel 9 is installed on the power input shaft of the right hydraulic pump 7. A hydraulic oil tank 10 is installed on the driver mounting frame 3. The telescopic end of the deviation adjustment cylinder 11 is hinged to the drive rod on the deviation correcting roller group 1. The left detection and drive wheel 8, the right detection and drive wheel 9, the hydraulic oil tank 10 and the deviation adjustment cylinder 11 are respectively connected to the integrated valve block 13 through corresponding oil pipes.

[0027] When the belt runs in the center, it does not contact the left and right detection and drive wheels 8 and 9, which is normal operation. If the belt runs to the left, the left detection and drive wheel 8 will generate a reverse thrust to prevent the belt from deviating further, and the belt will drive the left detection and drive wheel 8 to rotate, starting the left hydraulic pump 6, which cooperates with the integrated valve block 13 to control the extension of the deviation adjustment cylinder 11. The deviation adjustment cylinder 11 drives the deviation correction roller group 1 to rotate around the rotation center line of the rotating seat, and the deviation correction roller group 1 drives the belt to run to the right and center.

[0028] On the contrary, if the belt deviates to the right when running, the right side detection and drive wheel 9 will generate reverse thrust to prevent the belt from deviating further, and the belt will drive the right side detection and drive wheel 9 to rotate, starting the right hydraulic pump 7, and cooperating with the integrated valve block 13 to control the retraction of the deviation adjustment cylinder 11, and the deviation adjustment cylinder 11 drives the deviation correction roller group 1 to rotate around the rotation center line of the rotating seat, and the deviation correction roller group 1 drives the belt to run to the left and center.

[0029] Automatically detects belt deviation and corrects it, so that the belt is always running in a reasonable state, thus offsetting the belt conveyor caused by improper installation, operation failure, special material impact, load changes, uneven elongation between belt sections, etc.

[0030] It relies on the friction rotation of the belt to generate power, so no power supply is required, and it can automatically adjust and correct. It has the characteristics of simple structure, reliable performance, and easy installation. It adopts a fully enclosed structure, so it can work normally in any harsh environment.

[0031] Example 1, as Figure 1-2As shown, the hydraulic belt correction device includes a correction roller group 1 and a roller mounting frame 2, a rotating seat connected to the correction roller group 1 is installed in the middle of the roller mounting frame 2, and a driver that can drive the correction roller group 1 to rotate around the rotation center line of the rotating seat is fixed on one side of the roller mounting frame 2. The driver changes the angle between the correction roller group 1 and the roller mounting frame 2, and the driver includes a driver mounting frame 3 and a deviation adjustment cylinder 11. The left pump frame 4 and the right pump frame are symmetrically installed at both ends of the driver mounting frame 3. 5. A left hydraulic pump 6 and a right hydraulic pump 7 are respectively installed on the left pump frame 4 and the right pump frame 5. A left detection and drive wheel 8 is installed on the power input shaft of the left hydraulic pump 6, and a right detection and drive wheel 9 is installed on the power input shaft of the right hydraulic pump 7. A hydraulic oil tank 10 is installed on the driver mounting frame 3. The telescopic end of the deviation adjustment cylinder 11 is hinged to the drive rod on the deviation correcting roller group 1. The left detection and drive wheel 8, the right detection and drive wheel 9, the hydraulic oil tank 10 and the deviation adjustment cylinder 11 are respectively connected to the integrated valve block 13 through corresponding oil pipes.

[0032] Furthermore, the left hydraulic pump 6 and the right hydraulic pump 7 are both bidirectional pumps.

[0033] Further, refer to Figure 3 The integrated valve block 13 is integrated with a one-way valve A13.1, a one-way valve B13.2, a one-way valve C13.3, a one-way valve D13.4, a first hydraulically controlled one-way valve 13.5 and a second hydraulically controlled one-way valve 13.6. The first oil outlet pipe A of the left hydraulic pump 6 and the first oil outlet pipe B of the right hydraulic pump 7 are connected to the rod chamber of the deviation adjustment cylinder 11 after merging, and the second oil outlet pipe A of the left hydraulic pump 6 and the second oil outlet pipe B of the right hydraulic pump 7 are connected to the rodless chamber of the deviation adjustment cylinder 11 after merging. The first oil outlet pipe A, the first oil outlet pipe B, the second oil outlet pipe A and the second oil outlet pipe B are respectively installed with a one-way valve A13.1, a one-way valve B13.2, a one-way valve C13.3, a one-way valve D13 .4, one end of the first branch oil return pipe is connected to the oil pipe between the one-way valve A13.1 and the one-way valve C13.3, and the first branch oil return pipe is installed with a first hydraulically controlled one-way valve 13.5, one end of the first branch oil return pipe is connected to the oil pipe between the one-way valve B13.2 and the one-way valve D13.4, and the first branch oil return pipe is installed with a second hydraulically controlled one-way valve 13.6, the other ends of the first branch oil return pipe and the second branch oil return pipe are both connected to the hydraulic oil tank 10, the hydraulic control ports of the first hydraulically controlled one-way valve 13.5 and the second hydraulically controlled one-way valve 13.6 are connected to the oil circuit connected to the rodless cavity of the deviation adjusting cylinder 11, and the hydraulic control port of the second hydraulically controlled one-way valve 13.6 is connected to the oil circuit connected to the rod cavity of the deviation adjusting cylinder 11.

[0034] If the belt deviates to the left when running, the left detection and drive wheel 8 will generate a reverse thrust to prevent the belt from deviating further, and the belt will drive the left detection and drive wheel 8 to rotate forward, starting the left hydraulic pump 6. The left hydraulic pump 6 draws the hydraulic oil in the hydraulic oil tank 10 and flows through the second oil outlet pipe A to the rodless chamber of the deviation adjustment cylinder 11, thereby pushing the deviation adjustment cylinder 11 to extend. At the same time, the oil pressure in the second oil outlet pipe A is used as the control pressure to pressurize the oil control port of the first hydraulically controlled one-way valve 13.5, so that the oil in the rod chamber of the deviation adjustment cylinder 11 can flow into the hydraulic oil tank 10 through the first hydraulically controlled one-way valve 13.5.

[0035] Similarly, if the belt deviates to the right when running, the right side of the detection and drive wheel 9 will generate a reverse thrust to prevent the belt from deviating further, and the belt will drive the right side of the detection and drive wheel 9 to rotate in the opposite direction, starting the right hydraulic pump 7. The right hydraulic pump 7 draws the hydraulic oil in the hydraulic oil tank 10 through the first oil outlet pipe B to the rod chamber of the deviation adjustment cylinder 11, thereby pushing the deviation adjustment cylinder 11 to retract. At the same time, the oil pressure in the first oil outlet pipe B is used as the control pressure to pressurize the oil control port of the second hydraulically controlled one-way valve 13.6, so that the oil in the rodless chamber of the deviation adjustment cylinder 11 can flow into the hydraulic oil tank 10 through the first hydraulically controlled one-way valve 13.5.

[0036] The left hydraulic pump 6 and the right hydraulic pump 7 share a set of independently set large-capacity hydraulic oil tanks 10, and the volume of the hydraulic oil tank 10 is large, and the circulating hydraulic oil can take away the heat generated by the hydraulic pumps, thereby enhancing the heat dissipation effect of the hydraulic system.

[0037] Furthermore, the capacity of the hydraulic oil tank 10 is set to 15-40L.

[0038] Furthermore, the roller mounting frame 2 and the driver mounting frame 3 are fixedly connected by two groups of connecting beams 12 . The two groups of connecting beams 12 are parallel to each other and spaced apart. The cylinder body of the deviation adjustment cylinder 11 is hinged on any one group of connecting beams 12 .

[0039] Furthermore, the right pump frame 5 includes a vertical steel plate 5.1 hinged to the driver mounting frame 3. The right hydraulic pump 7 is mounted on the vertical steel plate 5.1. A horizontal steel plate 5.2 is mounted on the other side of the vertical steel plate 5.1. A buffer 5.3 is provided between the horizontal steel plate 5.2 and the driver mounting frame 3. The upper and lower ends of the buffer 5.3 are hinged to the horizontal steel plate 5.2 and the driver mounting frame 3, respectively. This reduces damage to the device caused by the belt hitting the left or right detection and drive pulleys 8 and 9.

[0040] Furthermore, the left pump frame 4 and the right pump frame 5 have the same structure.

[0041] The hydraulic belt correction device described in the utility model automatically detects belt deviation and corrects it, so that the belt always runs in a reasonable state, thereby offsetting the phenomena of the belt conveyor caused by improper installation, operation failure, special material impact, load change, uneven elongation between belt sections, etc.

[0042] The hydraulic belt correction device described in the utility model relies on the friction rotation of the belt to generate power, so it does not require power supply, automatically adjusts and corrects, has the characteristics of simple structure, reliable performance, easy installation, etc., and adopts a fully enclosed structure, so it can work normally in any harsh environment.

[0043] The hydraulic belt correction device described in the utility model is equipped with an independent hydraulic oil tank and an integrated valve block. The circulating hydraulic oil can take away the heat generated by the hydraulic pump, while enhancing the heat dissipation effect of the hydraulic system and realizing preventive control of overheating of the hydraulic pump.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

[0045] Any matters not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. A hydraulic belt correction device, comprising a correction roller group and a roller mounting frame, wherein a rotating seat connected to the correction roller group is installed in the middle of the roller mounting frame, and a driver capable of driving the correction roller group to rotate around the rotation centerline of the rotating seat is fixed to one side of the roller mounting frame, wherein the driver changes the angle between the correction roller group and the roller mounting frame, characterized in that: The driver includes a driver mounting frame and an adjustment cylinder. A left pump frame and a right pump frame are symmetrically installed at both ends of the driver mounting frame. A left hydraulic pump and a right hydraulic pump are respectively installed on the left pump frame and the right pump frame. A left inspection and drive wheel is installed on the power input shaft of the left hydraulic pump, and a right inspection and drive wheel is installed on the power input shaft of the right hydraulic pump. A hydraulic oil tank is installed on the driver mounting frame. The telescopic end of the adjustment cylinder is hinged to the drive rod on the correction roller group. The left inspection and drive wheel, the right inspection and drive wheel, the hydraulic oil tank and the adjustment cylinder are respectively connected to the integrated valve block through corresponding oil pipes.

2. The hydraulic belt correction device according to claim 1, characterized in that: The left hydraulic pump and the right hydraulic pump are both bidirectional pumps.

3. The hydraulic belt correction device according to claim 2, characterized in that: The integrated valve block is integrated with a one-way valve A, a one-way valve B, a one-way valve C, a one-way valve D, a first hydraulically controlled one-way valve and a second hydraulically controlled one-way valve. The first oil outlet pipe A of the left hydraulic pump and the first oil outlet pipe B of the right hydraulic pump are connected to the rod chamber of the deviation adjustment cylinder after merging. The second oil outlet pipe A of the left hydraulic pump and the second oil outlet pipe B of the right hydraulic pump are connected to the rodless chamber of the deviation adjustment cylinder after merging. The first oil outlet pipe A, the first oil outlet pipe B, the second oil outlet pipe A and the second oil outlet pipe B are respectively installed with a one-way valve A, a one-way valve B, a one-way valve C, a one-way valve D for limiting the flow of hydraulic oil to the deviation adjustment cylinder. One end of the branch oil return pipe is connected to the oil pipe between the one-way valve A and the one-way valve C, and a first hydraulically controlled one-way valve is installed on the first branch oil return pipe. One end of the first branch oil return pipe is connected to the oil pipe between the one-way valve B and the one-way valve D, and a second hydraulically controlled one-way valve is installed on the first branch oil return pipe. The other ends of the first branch oil return pipe and the second branch oil return pipe are both connected to the hydraulic oil tank, and the hydraulic control ports of the first hydraulically controlled one-way valve and the second hydraulically controlled one-way valve are connected to the oil circuit connected to the rodless chamber of the deviation adjusting cylinder, and the hydraulic control port of the second hydraulically controlled one-way valve is connected to the oil circuit connected to the rod chamber of the deviation adjusting cylinder.

4. The hydraulic belt correction device according to claim 3, characterized in that: The roller mounting frame and the driver mounting frame are fixedly connected via two groups of connecting beams. The two groups of connecting beams are parallel to each other and spaced apart. The cylinder body of the deviation adjustment cylinder is hinged on any one group of connecting beams.

5. The hydraulic belt correction device according to claim 4, characterized in that: The right pump frame includes a vertical steel plate hinged to the driver mounting frame, the right hydraulic pump is installed on the vertical steel plate, a horizontal steel plate is installed on the other side of the vertical steel plate, a buffer is arranged between the horizontal steel plate and the driver mounting frame, and the upper and lower ends of the buffer are hinged to the horizontal steel plate and the driver mounting frame respectively.

6. The hydraulic belt correction device according to claim 5, characterized in that: The left pump frame and the right pump frame have the same structure.

Images