High load capacity anti-offset hydraulic stand column

Abstract

The present application relates to the technical fields of hydraulic column, particularly relates to a high bearing capacity anti-unbalanced load hydraulic column; the column main body is fixed on the bottom plate, the top of the piston rod in the column main body is fixed with the top plate, the left and right sides of the bottom of the top plate are both fixed with vertical rack, the rack passes through the power box at the top end of the column main body, the power box is fixed on the bottom plate through the support b, and the built-in gear is engaged with the rack; the needle of the contact sensor is directly detected for the unbalanced load of the piston rod, the tensioned wire sensor is used to detect whether the top plate is skewed, the front and rear dovetail type slide table assemblies are used to limit the front and rear unbalanced load, the power box installed on the left and right sides is used to improve the overall bearing capacity and correct the left and right unbalanced load.

Description

Technical Field

[0001] This invention relates to the field of hydraulic column technology, and in particular to a high-load-bearing, anti-eccentric hydraulic column. Background Technology

[0002] Hydraulic columns are core support components in mining machinery, construction machinery, and heavy equipment, and their performance directly affects the safety and reliability of the equipment. Traditional hydraulic columns have significant deficiencies in terms of load-bearing capacity and resistance to eccentric loads. Specifically, hydraulic columns can only provide the pressure of their standard load. However, in the event of a partial collapse in a mine, the pressure on the top of the hydraulic column will be uneven, and the additional pressure will cause the hydraulic column to exceed its rated load.

[0003] Existing hydraulic columns do not have the function of judging whether there is an off-center load. Generally speaking, local off-center load at the top does not have a significant impact on the hydraulic column. However, after long-term use or after the ore above settles, the local stress changes significantly, causing the hydraulic column to be off-center, which may damage the device in severe cases.

[0004] Existing hydraulic columns lack components for assisting in lifting and providing additional pressure resistance. Therefore, there is an urgent need for a new type of multifunctional hydraulic column device. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and achieve the above-mentioned functions, the present invention provides a high load-bearing capacity anti-eccentric load hydraulic column.

[0006] This invention is achieved through the following technical solution:

[0007] A high load-bearing capacity anti-eccentric load hydraulic column includes a column body fixed to a base plate. A top plate is fixed to the top of the piston rod in the column body. Vertical racks are fixed to the left and right sides of the bottom of the top plate. The racks pass through an assist box located at the top of the column body. The assist box is fixed to the base plate by a support column b and has a gear that meshes with the rack inside.

[0008] A horizontal monitoring plate a is welded to the top of the main column. The monitoring plate a is fixedly connected to the monitoring plate b above it via a support column a. Both the monitoring plate a and the monitoring plate b are equipped with several contact sensors that abut against the outer wall of the piston rod.

[0009] Furthermore, the booster box is provided with openings at the top and bottom to allow the rack to pass through, and the shaft of the gear is limited by a limiting bearing seat fixed on the front and rear inner walls of the booster box.

[0010] A partition is fixed inside the power supply box. A worm gear that meshes with a gear is installed above the partition. A bevel gear a is fixed at the end of the worm gear. A motor is installed at the bottom of the power supply box. A bevel gear b that meshes with bevel gear a is fixed at the end of the motor output shaft.

[0011] When the piston rod rises to its highest point, the bottom of the rack is still engaged with the gear.

[0012] Furthermore, several pull-wire sensors are fixed on the monitoring plate a, and the pull-wire sensors pass through the monitoring plate b and are connected to the bottom end of the top plate; both the pull-wire sensors and the contact sensors are linearly connected to the electric control box installed in the power supply box.

[0013] Furthermore, the front and rear ends of the lower end face of the top plate are equipped with sliding plates, which are adapted to the dovetail groove, and the dovetail groove is fixedly connected to the bottom plate by reinforcing ribs;

[0014] When the piston rod rises to its highest point, the bottom of the slide plate remains in the dovetail groove.

[0015] Furthermore, each booster box is supported by a bottom support column b; when the piston rod descends to the bottom, the upper surface of the booster box is still lower than the lower surface of the top plate.

[0016] Furthermore, the pull-wire sensor and the contact sensor are evenly distributed around the piston rod.

[0017] The beneficial effects of this invention are:

[0018] This invention directly detects off-center load by using a contact sensor to detect the displacement of the piston rod, uses a pull-wire sensor to detect whether the top plate is tilted, and uses front and rear dovetail slide assemblies to limit the front and rear off-center load. The booster boxes installed on the left and right sides adopt a self-locking and multi-axis drive method to improve the overall load-bearing capacity and the correction of left and right off-center load. Attached Figure Description

[0019] Figure 1 and Figure 2 This is a three-dimensional diagram of the overall structure of the present invention;

[0020] Figure 3 and Figure 4 This is a schematic diagram of the components inside the power supply box 4;

[0021] Figure 5 This is a top view of the present invention after removing the surrounding components;

[0022] Figure 6 This is a schematic diagram after the top plate has been removed;

[0023] Figure 7 This is a schematic diagram of monitoring board a.

[0024] In the picture:

[0025] 1. Base plate, 101. Top plate

[0026] 2. Main column, 201. Piston rod,

[0027] 3. Monitoring board a, 301. Monitoring board b, 302. Support column a,

[0028] 4. Power supply box, 401, partition, 402, support column b.

[0029] 5. Rack, 501. Gear, 502. Limit bearing housing, 6. Worm gear, 601. Bevel gear a,

[0030] 7. Motor; 701. Bevel gear b; 702. Electrical control box.

[0031] 8. Contact sensor,

[0032] 9. Pull-wire sensor; 901. Steel wire rope;

[0033] 10. Dovetail slide, 1001. Slide plate, 1002. Reinforcing rib. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] refer to Figures 1 to 7 The present invention includes a column body 2 fixed on a base plate 1. The column body 2 and the piston rod 201 together form a hydraulic cylinder. The top of the piston rod 201 in the column body 2 is fixed with a top plate 101 for installing other load-bearing components. Vertical racks 5 are fixed on the left and right sides of the bottom of the top plate 101. The racks 5 pass through the booster box 4 located at the top of the column body 2. The booster box 4 is fixed on the base plate 1 by a support column b402 and has a gear 501 that meshes with the racks 5.

[0037] A horizontal monitoring plate a3 is welded to the top of the column body 2. The monitoring plate a3 is fixedly connected to the monitoring plate b301 above it through the support column a302. Both the monitoring plate a3 and the monitoring plate b301 are equipped with several contact sensors 8 that abut against the outer wall of the piston rod 201 to detect the off-center load direction of the piston rod 201.

[0038] refer to Figure 3 The booster box 4 has openings at the top and bottom that allow the rack 5 to pass through. The shaft of the gear 501 is limited by the limiting bearing seat 502 fixed on the front and rear inner walls of the booster box 4. A partition 401 is fixed inside the booster box 4. A worm 6 that meshes with the gear 501 is provided above the partition 401. A bevel gear a601 is fixed at the end of the worm 6. A motor 7 is installed at the bottom of the booster box 4. A bevel gear b701 that meshes with the bevel gear a601 is fixed at the end of the output shaft of the motor 7.

[0039] When the piston rod 201 rises to its highest point, the bottom of the rack 5 remains engaged with the gear 501 to prevent it from falling off.

[0040] Several pull-wire sensors 9 are fixed on the monitoring plate a3. The pull-wire sensors 9 pass through the monitoring plate b301 and are connected to the bottom end of the top plate 101 to detect whether the extension length of the piston rod 201 is the same at different positions. The pull-wire sensors 9 and the contact sensors 8 are linearly connected to the electrical control box 702 installed in the booster box 4. The electrical control box 702 is equipped with conventional power supply components and control components, such as a battery and a PLC.

[0041] The front and rear ends of the lower end face of the top plate 101 are equipped with sliding plates 1001. The sliding plates 1001 are adapted to the dovetail slide groove 10, which serves to limit the piston rod 201 and reduce the off-center load. The dovetail slide groove 10 is fixedly connected to the bottom plate 1 by reinforcing ribs 1002.

[0042] When the piston rod 201 rises to its highest point, the bottom of the slide plate 1001 is still located in the dovetail groove 10, which can still serve as a guide.

[0043] Each booster box 4 is supported by a bottom support column b402; when the piston rod 201 descends to the bottom, the upper surface of the booster box 4 is still lower than the lower surface of the top plate 101 to prevent interference.

[0044] The working principle of this invention is as follows: When the piston rod 201 begins to rise, the motors 7 on both sides receive signals and indirectly drive the worm gear 6 and gear 501 to rotate, thereby causing the rack to rise and assisting the top plate 101 to rise; when the top plate 101 is overloaded, since the motors 7 do not receive signals and the worm gear is self-locking, the bearing capacity of the piston rod 201 is much greater than the bearing strength of the hydraulic cylinder alone; when the piston rod 201 is slightly tilted, the parameters of the contact sensors 8 and the pull-wire sensors 9 arranged around it will change, and the inconsistent parameter differences will detect the off-center load; and the motors 7 on both sides will make fine adjustments based on the data output of the off-center load parameters to make the left and right off-center loads tend to be normal.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A high-load-bearing anti-eccentricity hydraulic column, comprising a column body (2) fixed on a base plate (1), characterized in that: The piston rod (201) in the column body (2) is fixed with a top plate (101). Vertical racks (5) are fixed on the left and right sides of the bottom of the top plate (101). The racks (5) pass through the booster box (4) located at the top of the column body (2). The booster box (4) is fixed on the base plate (1) by the support column b (402) and has a gear (501) that meshes with the racks (5). The top of the column body (2) is welded with a horizontal monitoring plate a (3). The monitoring plate a (3) is fixedly connected to the monitoring plate b (301) above through the support column a (302). Both the monitoring plate a (3) and the monitoring plate b (301) are equipped with several contact sensors (8) that abut against the outer wall of the piston rod (201). The booster box (4) has openings at the top and bottom that allow the rack (5) to pass through, and the shaft of the gear (501) is limited by the limiting bearing seat (502) fixed on the front and rear inner walls of the booster box (4). A partition (401) is fixed inside the power supply box (4). A worm (6) that meshes with a gear (501) is provided above the partition (401). A bevel gear a (601) is fixed at the end of the worm (6). A motor (7) is installed at the bottom of the power supply box (4). A bevel gear b (701) that meshes with bevel gear a (601) is fixed at the end of the output shaft of the motor (7). When the piston rod (201) rises to its highest point, the bottom of the rack (5) is still engaged with the gear (501).

2. The high-load-bearing anti-eccentricity hydraulic column according to claim 1, characterized in that: Several pull-wire sensors (9) are fixed on the monitoring plate a (3). The pull-wire sensors (9) pass through the monitoring plate b (301) and are connected to the bottom of the top plate (101). The pull-wire sensors (9) and the contact sensors (8) are both linearly connected to the electric control box (702) installed in the power supply box (4).

3. The high-load-bearing anti-eccentric hydraulic column according to claim 1, characterized in that: The top plate (101) has a sliding plate (1001) installed at the front and rear ends of the lower end face. The sliding plate (1001) is adapted to the dovetail slide (10). The dovetail slide (10) is fixedly connected to the bottom plate (1) by a reinforcing rib (1002). When the piston rod (201) rises to its highest point, the bottom of the slide plate (1001) remains in the dovetail groove (10).

4. The high-load-bearing anti-eccentricity hydraulic column according to claim 1, characterized in that: Each booster box (4) is supported by a bottom support b (402); when the piston rod (201) descends to the bottom, the upper surface of the booster box (4) is still lower than the lower surface of the top plate (101).

5. The high-load-bearing anti-eccentricity hydraulic column according to claim 2, characterized in that: The pull-wire sensor (9) and the contact sensor (8) are evenly distributed around the piston rod (201).

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