CN118723798A - A cylinder lifting beam - Google Patents

Abstract

The present invention relates to the technical field of monorail cranes, and specifically to a cylinder lifting beam, which reduces the space occupied by the height by combining the traditional main beam and the cross beam into one. The cross beam includes a load-bearing beam and a cross beam hinged to the load-bearing beam, so that when the present invention enters a curved track, the cross beam automatically compensates for the radius difference on both sides of the track by the rotation effect achieved by the hinge, thereby preventing oblique pulling. The balance valves of the two hydraulic cylinders at the same end of the two lifting beams along the extension direction of the track are connected to the same diverter and collector valve, and the two hydraulic cylinders at the same end of the two lifting beams along the extension direction of the track are uniformly controlled by the diverter and collector valve to achieve synchronous lifting of the two lifting beams at the same end. Each hydraulic cylinder is connected to an electromagnetic ball valve, which is connected to an inclination sensor arranged at the bottom of the cross load-bearing beam. The electromagnetic ball valve is controlled by the angle signal of the inclination sensor to control the two lifting beams on both sides of the track to maintain them in the same horizontal position.

Description

A cylinder lifting beam

Technical Field

The invention relates to the technical field of monorail cranes, in particular to an oil cylinder lifting beam.

Background Art

The explosion-proof diesel engine monorail crane locomotive for coal mines is an auxiliary transportation equipment used in coal mines. Its working efficiency and service life are very important. The lifting beam is an indispensable equipment for monorail auxiliary transportation. The lifting beam can be divided into a motor lifting beam and a cylinder lifting beam according to the actuator. The advantage of the motor lifting beam is that the chain can be infinitely long, and the disadvantage is that it occupies a large height space. The cylinder lifting beam arranges the cylinder in the frame beams on both sides, which reduces the space occupied in the height direction and is suitable for use in low tunnels. At present, the control of the hydraulic cylinder of the cylinder lifting beam is controlled by a one-to-one multi-way valve. If the operation is improper during the lifting of heavy objects, one end of the cylinder will lift more, which will cause the heavy object to tilt and the chain to be seriously inclined, affecting the service life of the lifting chain. Moreover, the cylinder lifting beams are all large-tonnage lifting beams, which are difficult to use in low tunnels.

Summary of the invention

In order to solve the above technical problems, the present invention provides the following technical solutions: a cylinder lifting beam, hung under the track, comprising:

Two cross-bearing beams connected by connecting rods, both of which are composed of a bearing beam extending along the extension direction of the track and a cross beam arranged perpendicular to the extension direction of the track, the cross beam passes through the bearing beam and is hinged with the bearing beam, an inclination sensor is provided on the bottom surface of the bearing beam, the inclination sensor is used to monitor the inclination angle of the bearing beam to both sides of the track, a load trolley is rotatably connected to the upper surface of the bearing beam, the load trolley is suspended under the track, and connecting seats are provided at both ends of the bearing beam along the extension direction of the track, one of the connecting seats is rotatably connected to the connecting rod.

Two lifting beams are symmetrically arranged on both sides along the extension direction of the track, and two hydraulic cylinders are symmetrically arranged in the two lifting beams along the extension direction of the track. The telescopic ends of the two hydraulic cylinders are arranged opposite to each other, and the two hydraulic cylinders are provided with a balancing valve. The balancing valve is connected to an electromagnetic ball valve and a diverter and collector valve. The electromagnetic ball valve and the diverter and collector valve are arranged in parallel. The balancing valves of the two hydraulic cylinders at the same end of the two lifting beams along the extension direction of the track are connected to the same diverter and collector valve, and the electromagnetic ball valve is connected to the electrical signal of the inclination sensor. Two lifting chains are fixedly connected in the two lifting beams, and the two lifting chains extend from the bottom of the two hydraulic cylinders to the direction of the telescopic end of the hydraulic cylinder, and then bypass the telescopic end of the hydraulic cylinder and are connected to the crossbeam. A lifting chain is fixedly connected under the lifting beam.

Preferably, two tail chain locking seats are fixedly connected to the inner bottom surface of each lifting frame beam, and the two tail chain locking seats are respectively located under each hydraulic cylinder. Two redirecting sprockets are fixedly provided on the lifting frame beam, and the two redirecting sprockets are respectively located above the two hydraulic cylinders and directly under the cross beam. Each tail chain locking seat is correspondingly fixedly connected to a lifting chain, and the lifting chain extends in the direction of the telescopic end of the hydraulic cylinder, upwardly bypasses the telescopic end of the hydraulic cylinder, and then extends in the direction of the redirecting sprocket, bypasses the wheel surface of the redirecting sprocket, and then is connected to the cross beam.

Preferably, the piston rod of the hydraulic cylinder is fixedly connected in the frame beam, the telescopic direction of the telescopic end of the hydraulic cylinder is parallel to the track, the telescopic end of the hydraulic cylinder is fixedly connected to a sprocket seat, the sprocket seat is rotatably connected to a forward push sprocket, the lifting chain bypasses the forward push sprocket and extends backward in the direction of the redirected sprocket, the piston rod of the hydraulic cylinder is provided with an oil circuit block, a balance valve is arranged on the oil circuit block, and the oil circuit block is also connected to a pressure sensor.

Preferably, the hinge between the cross beam and the load-bearing beam is located at a center position of the track perpendicular to the extension direction of the track and at a center position of the cross beam.

Preferably, each load beam is rotatably connected to at least two load trolleys, and the two load trolleys are symmetrically arranged at two ends of the load beam along the extension direction of the track.

Preferably, the lifting chain is fixedly connected to the crossbeam via a chain wedge.

Preferably, the lifting chains are symmetrically connected to both ends of the crossbeam.

Preferably, the outlet of the flow diverter and collector valve is connected to a compensating nozzle.

Preferably, guide seats are provided at both end portions of the two lifting beams along the extension direction of the track.

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

(1) The cross-beam of the present invention combines the traditional main beam and the cross beam into one, thus reducing the space occupied by the height. The cross-beam is hingedly connected by the bearing beam and the cross beam, so that the cross beam can rotate in the same plane relative to the bearing beam. When the present invention passes through a curved track, the inner and outer radius difference on both sides of the curved track can be automatically compensated by the rotation of the cross beam;

(2) The balancing valves of the two hydraulic cylinders at the same end of the two lifting beams along the extension direction of the track are connected to the same flow dividing and collecting valve, and the two hydraulic cylinders at the same end of the two lifting beams along the extension direction of the track are uniformly controlled by the flow dividing and collecting valve to achieve synchronous lifting of the two lifting beams at the same end;

(3) An inclination sensor is installed on the bottom surface of the load-bearing beam to monitor the inclination angle of the load-bearing beam to one side of the two sides of the track. The inclination sensor is connected to the electromagnetic ball valve with electrical signals, and the electromagnetic ball valve is connected to the hydraulic cylinder. Through real-time monitoring by the inclination sensor, the electromagnetic ball valve controls the hydraulic cylinders on both sides of the track to correct the deviation, ensuring that the lifting beams on both sides of the track are always in the same horizontal plane, preventing one of the two lifting beams from sinking.

Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a perspective view of the present invention;

FIG2 is a cross-sectional view of the lifting beam of the present invention;

FIG3 is a top view of the present invention;

Figure numerals: 1. load-bearing beam; 101. load trolley; 102. connecting seat; 2. cross beam; 3. connecting rod; 4. lifting frame beam; 401. tail chain locking seat; 402. redirecting sprocket; 5. hydraulic cylinder; 501. sprocket seat; 502. forward push sprocket; 503. oil circuit block; 6. lifting chain.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Please refer to Figures 1 to 3, the present invention provides a cylinder lifting beam, which is hung under the track.

Two cross-bearing beams 1 connected by connecting rods 3. Both cross-bearing beams 1 are composed of a bearing beam 1 extending along the track direction and a cross beam 2 perpendicular to the extension direction of the bearing beam 1, so that the cross beam 2 can rotate relative to the bearing beam 1 with the hinge point as the center line. Specifically, the hinge between the cross beam 2 and the bearing beam 1 is located at the center position of the track perpendicular to the extension direction of the track and at the center position of the cross beam and at the center position of the cross beam 2, which is used to make the lengths of the cross beams 2 on both sides of the track equal, and make the angular displacements of the two ends of the cross beam 2 the same when rotating with the hinge point as the center. When passing through a curved track, the radius difference on both sides of the track when the track is curved is automatically compensated by the rotation of the cross beam 2 relative to the bearing beam 1, reducing the situation where the lifting chain 6 is inclined, and improving the safety of the equipment. The lower bottom surface of the bearing beam 1 is provided with an inclination sensor, which is set at the center position of the track width direction, that is, the same as the center position of the track perpendicular to the extension direction of the track, and is used to monitor the angle of inclination of the bearing beam 1 to one side of the two sides of the track.

The upper surface of the load beam 1 is rotatably connected with a load trolley 101, which is suspended under the track and is used to drive the load beam 1 to move, and when entering the curved track, the load trolley 101 can rotate relative to the load beam 1. Specifically, each load beam 1 is rotatably connected with at least two load trolleys 101, and the two load trolleys 101 are symmetrically arranged on the upper surfaces of both ends of the load beam 1 along the extension direction of the track, so as to pull the load beam 1 evenly.

Connecting seats 102 are provided at both ends of the load-bearing beam 1 along the extension direction of the track, one of the connecting seats 102 is rotatably connected to the connecting rod 3, and the two load-bearing beams 1 corresponding to the two load-bearing beams 1 have a connecting seat 102 at one end that is rotatably connected to the connecting rod 3, and then the two load-bearing beams 1 are connected into a whole through a connecting rod 3, and when entering a curved track, the rotational connection between the connecting seat 102 and the connecting rod 3 is used to achieve the required degree of freedom for turning.

It also includes two lifting beams 4 symmetrically arranged on both sides along the extension direction of the track. Two hydraulic cylinders 5 are symmetrically arranged in the two lifting beams 4 along the extension direction of the track. The telescopic ends of the two hydraulic cylinders 5 are arranged opposite to each other, so that the fixed ends of the hydraulic cylinders 5 can be fixedly arranged at both ends of the lifting beam 4. By controlling the distance between the two hydraulic cylinders 5, the length of the entire lifting beam 4 is controlled, thereby improving the space utilization rate inside the lifting beam 4.

Both hydraulic cylinders 5 are provided with a balancing valve, and the balancing valve is connected to an electromagnetic ball valve and a diverter and collector valve, and the electromagnetic ball valve and the diverter and collector valve are arranged in parallel. The balancing valves of the two hydraulic cylinders 5 at the same end of the two lifting beams 4 at both ends of the track extension direction are connected to the same diverter and collector valve, and the electromagnetic ball valve is connected to the electrical signal of the inclination sensor. Through the control of the diverter and collector valve, any end of the two lifting beams 4 on both sides of the track along the track extension direction can be lifted or lowered synchronously. The inclination angle of the load-bearing beam to one side of the two sides of the track is monitored by the inclination sensor, and the electromagnetic ball valve is controlled by the angle to correct the deviation to ensure that the two lifting beams 4 on both sides of the track are always in the same horizontal plane. Thus, the four hydraulic cylinders 5 connected to the same hydraulic system can be controlled individually by the electromagnetic ball valve, or they can be controlled in pairs by the corresponding flow divider and collector valves, that is, the two hydraulic cylinders 5 at the same end of the two lifting beams 4 are firstly kept in synchronous lifting and lowering by the flow divider and collector valve, and then the two hydraulic cylinders 5 at the same end are kept in the same horizontal plane by the control of the electromagnetic ball valve according to the angle signal of the inclination sensor. Furthermore, the outlet of the flow divider and collector valve is connected to a compensation nozzle, and the flow is automatically compensated from high pressure to low pressure through the automatic compensation of the compensation nozzle, further ensuring the synchronous action of the two hydraulic cylinders 5 connected to the flow divider and collector valve.

Two lifting chains 6 are fixedly connected in the two lifting beams 4. The two lifting chains 6 extend from the corresponding hydraulic cylinders 5 to the direction of the telescopic end of the hydraulic cylinders 5, and then go around the telescopic end of the hydraulic cylinders 5 and connect to the cross beam 2. Specifically, two tail chain locking seats 401 are fixedly connected to the inner bottom surface of each lifting beam 4. The two tail chain locking seats 401 are respectively located under each hydraulic cylinder 5, that is, a tail chain locking seat 401 is correspondingly arranged under one hydraulic cylinder 5, so that the tension of the lifting chain 6 directly acts on the bottom of the lifting beam 4, which is convenient for the subsequent direct transmission of the tension to the lifting chain fixedly connected to the bottom of the lifting beam 4. Two redirecting sprockets 402 are fixedly arranged on the lifting beam 4. The two redirecting sprockets 402 are respectively located above the two hydraulic cylinders 5 and directly below the cross beam 2. That is, there is a redirecting sprocket 402 above each hydraulic cylinder 5, and the position of the redirecting sprocket 402 corresponds to the position of the upper crossbeam 2, ensuring that the lifting chain 6 is always in the vertical direction, and preventing the lifting chain 6 from tilting due to the extension and contraction of the telescopic end of the hydraulic cylinder 5 pushing the lifting chain 6. Each tail chain lock is correspondingly fixedly connected to a lifting chain 6, and the lifting chain 6 extends toward the telescopic end of the hydraulic cylinder 5, then bypasses the telescopic end of the hydraulic cylinder 5 upward, and then extends toward the redirecting sprocket 402, bypasses the wheel surface of the redirecting sprocket 402, and is connected to the crossbeam 2.

Since the tail chain locking seat 401 is located below the hydraulic cylinder 5, and a part of the lifting chain 6 is also located below the hydraulic cylinder 5, there must be a gap below the hydraulic cylinder 5 inside the lifting frame beam 4. In order to improve the space utilization inside the lifting frame beam 4, the oil block 503, the balance valve and the pressure sensor arranged in the hydraulic cylinder 5 are all located below the hydraulic cylinder 5.

The piston rod of the hydraulic cylinder 5 is fixedly connected to the lifting frame beam 4, and the telescopic direction of the telescopic end of the hydraulic cylinder 5 is parallel to the track, that is, the piston rod of the hydraulic cylinder 5 is the fixed end, and the cylinder barrel of the hydraulic cylinder 5 is the telescopic end. The telescopic end of the hydraulic cylinder 5 is fixedly connected to the sprocket seat 501. The cylinder barrel of the hydraulic cylinder 5 is fixedly connected to the sprocket seat 501, which is beneficial to reduce the thickness of the lifting frame beam 4 and avoid leakage. The sprocket seat 501 is rotatably connected to the front push sprocket 502, and the lifting chain 6 bypasses the wheel surface of the front push sprocket 502 and extends backward to the direction of the redirecting sprocket 402. The piston rod of the hydraulic cylinder 5 is provided with an oil circuit block 503, and a balance valve is set on the oil circuit block 503 for locking the hoisted object. The oil circuit block 503 is also provided with a pressure sensor for detecting the pressure on the lifting load side of the hydraulic cylinder 5.

Because the telescopic ends of the two hydraulic cylinders 5 in the same lifting frame beam 4 are both telescoped toward the middle part of the lifting frame beam 4, the two lifting chains 6 corresponding to the same lifting frame beam 4 that bypass the telescopic ends of the hydraulic cylinders 5 are both in the middle position of the lifting frame beam 4, which improves the space utilization inside the lifting frame beam 4 and helps to reduce the length of the lifting frame beam 4.

Furthermore, the lifting chain 6 passes through the cross beam 2 and is connected to the cross beam 2 through the chain wedge. The chain is fixed relative to the cross beam 2 through the clamping action of the chain wedge, and the length of the lifting chain 6 relative to the lifting frame beam 4 can be easily adjusted during subsequent maintenance. Each lifting frame beam 4 is provided with two tail chain locking seats 401, and two lifting frame beams 4 are correspondingly provided with four tail chain locking seats 401, and four tail chain locking seats 401 correspond to four lifting chains 6.

Since the hinge point between the crossbeam 2 and the load-bearing beam 1 is located at the center of the crossbeam 2, in order to enable the two lifting beams 4 to be symmetrically arranged on both sides of the track, the lifting chains 6 corresponding to the two lifting beams 4 are symmetrically arranged at the connection points with the crossbeam 2 at both ends of the crossbeam 2, preferably near the ends of the crossbeam 2 perpendicular to the extension direction of the track.

A lifting chain is fixedly connected to the bottom surface of the lifting frame beam 4 for hanging objects.

Guide seats are provided at both end portions of the two lifting beams 4 along the extending direction of the track.

On the basis of the above implementation scheme, the processors, modules, corresponding control programs, algorithm programs and other supporting technologies mentioned in the present invention can be implemented in combination with existing electrical technology, information technology, software technology and general protocols. They are not within the scope of protection required by the present invention and will not be described in detail in this application.

It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view.

Claims (9)

1. An oil cylinder lifting beam suspended below a track, comprising:

The two cross bearing beams are connected through a connecting rod (3), each cross bearing beam consists of a bearing beam (1) extending along the extending direction of the track and a cross beam (2) perpendicular to the extending direction of the track, each cross beam (2) penetrates through the corresponding bearing beam (1) and is hinged to the corresponding bearing beam (1), an inclination sensor is arranged on the lower bottom surface of each bearing beam (1) and is used for monitoring the inclination angle of each bearing beam (1) towards two sides of the track, a load trolley (101) is rotatably connected to the upper surface of each bearing beam (1), each load trolley (101) is hung under the corresponding track, connecting seats (102) are respectively arranged at two ends of each bearing beam (1) along the extending direction of the track, and one connecting seat (102) is rotatably connected with each connecting rod (3);

Along two lifting frame roof beams (4) that rail extending direction's bilateral symmetry set up, two in lifting frame roof beam (4) all follow rail extending direction symmetry be equipped with two hydraulic cylinder (5), the flexible end of two hydraulic cylinder (5) in the same lifting frame roof beam (4) sets up relatively, hydraulic cylinder (5) are equipped with the balanced valve, the balanced valve is connected with solenoid valve and reposition of redundant personnel flow valve, solenoid valve and reposition of redundant personnel flow valve parallelly connected set up, two the balanced valve of two hydraulic cylinder (5) of the same end along rail extending direction both ends in lifting frame roof beam (4) is connected in same reposition of redundant personnel flow valve, solenoid valve with inclination sensor electrical signal connection, two in lifting frame roof beam (4) equal fixedly connected with two hoist chains (6), two hoist chains (6) are respectively from two behind the direction extension of the flexible end of hydraulic cylinder (5) upwards bypass the flexible end of hydraulic cylinder (5) with crossbeam (2), lifting frame roof beam (4) are connected with hoist chain (7).

2. The oil cylinder lifting beam according to claim 1, wherein two tail chain locking seats (401) are fixedly connected to the inner bottom surface of each lifting frame beam (4), the two tail chain locking seats (401) are respectively located below each hydraulic oil cylinder (5), two redirecting chain wheels (402) are fixedly arranged on the lifting frame beams (4), the two redirecting chain wheels (402) are respectively located above the two hydraulic oil cylinders (5) and located under the cross beam (2), one lifting chain (6) is fixedly connected to each tail chain locking seat (401) correspondingly, and the lifting chain (6) extends upwards in the direction of the telescopic end of the hydraulic oil cylinder (5) and bypasses the telescopic end of the hydraulic oil cylinder (5) to the direction of the redirecting chain wheels (402) to bypass the wheel faces of the redirecting chain wheels (402) to be connected with the cross beam (2).

3. The oil cylinder lifting beam according to claim 2, wherein a piston rod of the hydraulic oil cylinder (5) is fixedly connected in the lifting frame beam (4), the telescopic direction of a telescopic end of the hydraulic oil cylinder (5) is parallel to the track, a chain wheel seat (501) is fixedly connected to the telescopic end of the hydraulic oil cylinder (5), a forward-pushing chain wheel (502) is rotatably connected to the chain wheel seat (501), the lifting chain (6) extends towards the direction of the redirecting chain wheel (402) after bypassing the forward-pushing chain wheel (502), an oil path block (503) is arranged on the piston rod of the hydraulic oil cylinder (5), and the balance valve is arranged on the oil path block (503) and is further connected with a pressure sensor.

4. The oil cylinder lifting beam according to claim 1, characterized in that the hinge joint of the cross beam (2) and the carrier beam (1) is located at the central position of the rail perpendicular to the extending direction of the rail and at the central position of the cross beam (2).

5. The oil cylinder lifting beam according to claim 1, wherein at least two load trolleys (101) are rotatably connected to each load beam, and the two load trolleys (101) are symmetrically arranged at two ends of the load beam (1) along the extending direction of the track.

6. The cylinder lifting beam according to claim 1, characterized in that the lifting chain (6) is fixedly connected to the cross beam (2) by means of a chain wedge.

7. The cylinder lifting beam according to claim 1, characterized in that the lifting chains (6) are symmetrically connected to both ends of the cross beam.

8. The cylinder lifting beam of claim 1, wherein the outlet of the flow dividing and collecting valve is connected with a compensating nozzle.

9. The oil cylinder lifting beam according to claim 1, characterized in that both end parts of the two lifting frame beams (4) along the extending direction of the rail are provided with guide seats.