Testing lifting device for reversed loader

Abstract

The utility model provides a lifting device for testing a reversed loader, which relates to the technical field of lifting devices and comprises a movable seat, a supporting platform and a movable platform, the supporting platform is arranged in the middle of the top of the movable seat, a guide groove is arranged on one side of the supporting platform, the movable platform is movably mounted in the guide groove, and the movable platform is arranged in the guide groove. A hydraulic jack is arranged at the top of the moving seat at the middle position below the guide groove; the movable base can move to the position needing to be lifted, the movable platform is jacked up through the hydraulic jack, after the movable platform reaches the preset height along the supporting platform, the hydraulic jack is locked, the fastening bolt on the side face of the supporting platform is rotated, and the supporting platform and the movable platform are locked in an auxiliary mode based on the friction effect of the protrusions. The double-supporting effect is achieved, the requirement of temporary machine testing is met, the machine testing efficiency of transportation type products can be improved, double lifting supporting locking is achieved, safety is guaranteed, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a loading machine test lifting device. Background Technique

[0002] The loading machine, full name scraper loading machine for gate road, is a bridge-type scraper conveyor installed in the sectional transport roadway at the lower outlet of the mine working face. It is mainly used in the mechanized production of coal mines as an intermediate transfer and conveying device. Its key role is to control the flow direction of coal transportation in the coal mine, enable the coal to flow out along the gate road direction, and achieve a reasonable connection with the tail of the gate road conveyor. One end of the loading machine is lapped with the conveyor at the working face, and the other end is connected to the tail of the belt conveyor. Through the bridge structure, the coal transported out of the working face is transferred to the extensible belt conveyor. As the coal mining working face advances, the loading machine also moves forward as a whole through the propulsion device, effectively shortening the length of the belt conveyor, thereby improving production efficiency and creating greater economic benefits.

[0003] Before the loading machine is used, in order to ensure the normal operation of the equipment and safe production, a test run is required, which requires the horsehead self-advancing tail to assist and support the head of the loading machine. When there is no horsehead self-advancing tail, generally temporary seamless pipes or other profile parts are used for support to achieve the elevation function during the test run of the loading machine. The support parts are generally assembled and used in a patchwork manner, which is very unsafe. And the existing technology lacks specific adapted elevation equipment. Therefore, the utility model proposes a loading machine test lifting device to solve the problems existing in the prior art. Content of the Utility Model

[0004] In view of the above problems, the utility model proposes a loading machine test lifting device, which is adapted to the needs of temporary test runs, is beneficial to improving the test run efficiency of transportation products, and has double elevation support locking, ensuring safety and being easy to operate.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A loading machine test lifting device includes a moving seat, a support platform and a movable platform. The support platform is arranged at the middle position on the top of the moving seat. A guide groove is arranged on one side of the support platform. The movable platform is movably installed inside the guide groove. A hydraulic jack is arranged on the top of the moving seat at the middle position below the guide groove, and the output end of the hydraulic jack is connected to the bottom of the movable platform.

[0006] A chute is arranged on one side of the support platform, and a fastening bolt is arranged inside the chute. One end of the fastening bolt passes through the chute and is threadedly connected to the movable platform. A protrusion is arranged inside the screw head of the fastening bolt, and there are multiple groups of protrusions.

[0007] A further improvement lies in that: at least three groups of the sliding grooves are provided, and the three groups of the sliding grooves are arranged at equal intervals.

[0008] A further improvement lies in that: a fixed base is provided at the bottom of the hydraulic jack, and screws are provided at both ends of the fixed base, and the fixed base is fixed to the moving seat through the screws.

[0009] A further improvement lies in that: a supporting plate is provided at the top of the movable platform, and the width of the supporting plate is greater than the width of the movable platform, and the supporting plate is a flexible plate.

[0010] A further improvement lies in that: a nut tube is embedded below one side of the movable platform, and one end of the fastening bolt is threadedly adapted to the nut tube.

[0011] A further improvement lies in that: reinforcing feet are provided at both ends below both sides of the supporting platform, and the reinforcing feet are inclined, and the lower ends of the reinforcing feet are connected to the moving seat.

[0012] A further improvement lies in that: universal wheels are provided at the four corners of the bottom of the moving seat, and nut sleeves are provided at the four corners inside the moving seat, a screw rod is threadedly installed inside the nut sleeve, and a supporting foot is provided at the lower end of the screw rod.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model can be moved to the position that needs to be lifted through the moving seat, and the movable platform is lifted by the hydraulic jack, so that the movable platform reaches the predetermined height along the supporting platform. After that, the hydraulic jack is locked, and the fastening bolt on the side of the supporting platform is rotated. Based on the friction effect of the protrusions, the supporting platform and the movable platform are assisted to be locked, achieving the effect of double support, adapting to the needs of temporary trial operation, being beneficial to improving the trial operation efficiency of transportation products, and having double lifting support and locking, ensuring safety and being convenient for operation.

[0015] 2. When the present utility model is lifted, the screw rod can be rotated, so that the screw rod moves downward under the threaded action of the nut sleeve, and the supporting feet are used to support on the ground, making the universal wheels suspended, facilitating the stable placement of the moving seat. When it needs to be moved, only the universal wheels need to be lowered, and the functions are diversified. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the present utility model;

[0017] Figure 2 is the installation schematic diagram of the supporting platform and the movable platform of the present utility model;

[0018] Figure 3 is the schematic diagram of the movable platform of the present utility model.

[0019] Wherein: 1. Moving seat; 2. Support platform; 3. Movable platform; 4. Hydraulic jack; 5. Chute; 6. Fastening bolt; 7. Protrusion; 8. Fixed base; 9. Support plate; 10. Nut tube; 11. Reinforcing foot; 12. Universal wheel; 13. Nut sleeve; 14. Screw; 15. Support foot. Detailed implementation mode

[0020] In order to deepen the understanding of the present utility model, the following will further elaborate on the present utility model in conjunction with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0021] Embodiment 1

[0022] According to Figure 1 、 2 As shown in Figures 1, 2, and 3, this embodiment proposes a test machine elevation device for a transfer machine, including a moving seat 1, a support platform 2, and a movable platform 3. The support platform 2 is arranged at the middle position on the top of the moving seat 1. A guiding groove is provided on one side of the support platform 2. The movable platform 3 is movably installed inside the guiding groove. A hydraulic jack 4 is provided on the top of the moving seat 1 at the middle position below the guiding groove, and the output end of the hydraulic jack 4 is connected to the bottom of the movable platform 3;

[0023] A chute 5 is provided on one side of the support platform 2, and a fastening bolt 6 is arranged inside the chute 5. One end of the fastening bolt 6 passes through the chute 5 and is threadedly connected to the movable platform 3. Inside the screw head of the fastening bolt 6, there are protrusions 7, and multiple groups of protrusions 7 are provided. During use, it can be moved to the position where elevation is required through the moving seat 1. The movable platform 3 is lifted by the hydraulic jack 4. After the movable platform 3 reaches the predetermined height along the support platform 2, the hydraulic jack 4 is locked. The fastening bolt 6 on the side of the support platform 2 is rotated, and based on the frictional effect of the protrusions 7, the support platform 2 and the movable platform 3 are assisted to be locked, achieving the effect of double support, adapting to the needs of temporary test runs, being beneficial to improving the test run efficiency of transportation products, and having double elevation support locking, ensuring safety and being convenient for operation. The hydraulic jack 4 has a self-locking function. This self-locking function mainly relies on a special structure "self-locking valve" inside the hydraulic jack. When the hydraulic jack 4 reaches the required height, the self-locking valve will prevent the liquid from flowing back, thereby maintaining the position of the jack. Even when the pressure of the hydraulic system is released, it can maintain the height of the load. This self-locking function enables the plunger of the hydraulic jack 4 to still stably maintain the current position after the external force is removed, playing a key supporting role and not being affected by the pressure and descending.

[0024] There are three groups of the sliding grooves 5, and the three groups of the sliding grooves 5 are equidistantly arranged. During use, the movable platform 3 is lifted by the hydraulic jack 4. During this process, the fastening bolts 6 move along the sliding grooves 5. After the movable platform 3 reaches a predetermined height along the supporting platform 2, the hydraulic jack 4 is locked, and the three fastening bolts 6 on the side of the supporting platform 2 are rotated. Based on the frictional effect of the protrusions 7, the supporting platform 2 and the movable platform 3 are assisted to be locked from three positions, achieving the effect of double support, which is more reliable and stable.

[0025] A fixed base 8 is provided at the bottom of the hydraulic jack 4, and screws are provided at both ends of the fixed base 8. The fixed base 8 is fixed to the movable seat 1 by screws. During use, the fixed base 8 is fixed to the movable seat 1 by screws, thereby fixing the position of the hydraulic jack 4.

[0026] A support plate 9 is provided on the top of the movable platform 3, and the width of the support plate 9 is greater than the width of the movable platform 3, increasing the stress area of the support and making it more stable. The support plate 9 is a soft plate for soft support, reducing friction, wear and impact force.

[0027] A nut tube 10 is embedded in the lower part on one side of the movable platform 3, and one end of the fastening bolt 6 is threadedly matched with the nut tube 10. During use, the movable platform 3 is lifted by the hydraulic jack 4. During this process, the fastening bolts 6 move along the sliding grooves 5. After the movable platform 3 reaches a predetermined height along the supporting platform 2, the hydraulic jack 4 is locked, and the fastening bolts 6 on the side of the supporting platform 2 are rotated, so that the fastening bolts 6 and the nut tube 10 are tightened by threaded matching. Based on the frictional effect of the protrusions 7, the supporting platform 2 and the movable platform 3 are assisted to be locked from three positions, achieving the effect of double support, which is more reliable and stable.

[0028] Reinforcing feet 11 are provided at both ends of the lower parts on both sides of the supporting platform 2, and the reinforcing feet 11 are inclined. The lower ends of the reinforcing feet 11 are connected to the movable seat 1. The reinforcing feet 11 improve the connection stability between the supporting platform 2 and the movable seat 1 and prevent tipping.

[0029] Embodiment 2

[0030] According to Figure 1 、 2 As shown in FIGS. 2 and 3, this embodiment provides a loading machine test run elevation device, including a movable seat 1, a supporting platform 2 and a movable platform 3. The supporting platform 2 is arranged at the middle position on the top of the movable seat 1. A guiding groove is provided on one side of the supporting platform 2. The movable platform 3 is movably installed inside the guiding groove. A hydraulic jack 4 is provided on the top of the movable seat 1 at the middle position below the guiding groove, and the output end of the hydraulic jack 4 is connected to the bottom of the movable platform 3;

[0031] On one side of the support platform 2, there is a sliding groove 5, and inside the sliding groove 5, there is a fastening bolt 6. One end of the fastening bolt 6 passes through the sliding groove 5 and is threadedly connected to the movable platform 3. Inside the screw head of the fastening bolt 6, there are protrusions 7, and there are multiple groups of the protrusions 7. During use, the mobile base 1 can be moved to the position that needs to be raised. The movable platform 3 is lifted by the hydraulic jack 4. After the movable platform 3 reaches the predetermined height along the support platform 2, the hydraulic jack 4 is locked. Then, the fastening bolt 6 on the side of the support platform 2 is rotated. Based on the frictional effect of the protrusions 7, the support platform 2 and the movable platform 3 are assisted to be locked, achieving the effect of double support, meeting the needs of temporary trial operation, being beneficial to improving the trial operation efficiency of transportation products. Moreover, with double elevation support and locking, it is safe and reliable and easy to operate. The hydraulic jack 4 has a self-locking function, which mainly depends on a special structure "self-locking valve" inside the hydraulic jack. When the hydraulic jack 4 reaches the required height, the self-locking valve will prevent the liquid from flowing back, thus maintaining the position of the jack. Even if the pressure of the hydraulic system is released, the height of the load can still be maintained. This self-locking function enables the plunger of the hydraulic jack 4 to still be stably maintained at the current position after the external force is removed, playing a key supporting role and not being affected by the pressure and descending.

[0032] There are three groups of the sliding grooves 5, and the three groups of the sliding grooves 5 are equidistantly arranged. During use, the movable platform 3 is lifted by the hydraulic jack 4. During this process, the fastening bolt 6 moves along the sliding groove 5. After the movable platform 3 reaches the predetermined height along the support platform 2, the hydraulic jack 4 is locked. Then, the three fastening bolts 6 on the side of the support platform 2 are rotated. Based on the frictional effect of the protrusions 7, the support platform 2 and the movable platform 3 are assisted to be locked from three positions, achieving the effect of double support, which is more reliable and stable.

[0033] At the four corners of the bottom of the mobile base 1, there are universal wheels 12 respectively, and at the four corners inside the mobile base 1, there are nut sleeves 13 respectively. Inside the nut sleeves 13, there are screw rods 14 threadedly installed, and at the lower end of the screw rods 14, there are support feet 15. When raising, the screw rods 14 can be rotated, so that the screw rods 14 move downward under the threaded action of the nut sleeves 13, and the support feet 15 are used to support on the ground, making the universal wheels 12 suspended, facilitating the stable placement of the mobile base 1. When it is necessary to move, just lower the universal wheels 12, with diverse functions.

[0034] The test run elevation device of this transfer machine can be moved to the position where elevation is required through the moving seat 1. The movable platform 3 is lifted by the hydraulic jack 4, so that the movable platform 3 reaches the predetermined height along the support platform 2. After that, the hydraulic jack 4 is locked, and the fastening bolt 6 on the side of the support platform 2 is rotated. Based on the friction of the protrusion 7, the support platform 2 and the movable platform 3 are assisted to be locked, achieving the effect of double support, meeting the needs of temporary test runs, facilitating the improvement of the test run efficiency of transportation products, and having double elevation support locking, ensuring safety and being easy to operate. At the same time, when elevating, the screw 14 can be rotated, so that the screw 14 moves downward under the action of the thread of the nut sleeve 13, and the support feet 15 are used to support on the ground, making the universal wheels 12 suspended, facilitating the stable placement of the moving seat 1. When movement is required, just lower the universal wheels 12, with diverse functions.

[0035] The foregoing has shown and described 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 by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A test machine lifting device for a transfer machine, comprising a moving seat (1), a supporting platform (2) and a movable platform (3), characterized in that: The support platform (2) is arranged at the middle position of the top of the movable seat (1), a guide groove is arranged on one side of the support platform (2), the movable platform (3) is movably installed inside the guide groove, a hydraulic jack (4) is arranged on the top of the movable seat (1) at the middle position below the guide groove, and the output end of the hydraulic jack (4) is connected to the bottom of the movable platform (3); A slide groove (5) is provided on one side of the support platform (2), and a fastening bolt (6) is provided inside the slide groove (5). One end of the fastening bolt (6) passes through the slide groove (5) and is threadedly connected to the movable platform (3). A protrusion (7) is provided on the inner side of the screw head of the fastening bolt (6), and the protrusion (7) is provided in multiple groups.

2. A transfer machine test machine lifting device according to claim 1, characterized in that: At least three groups of the slide grooves (5) are provided, and the three groups of the slide grooves (5) are arranged at equal distances.

3. A transfer machine test machine lifting device according to claim 1, characterized in that: A fixed base (8) is provided at the bottom of the hydraulic jack (4), and screws are provided at both ends of the fixed base (8), and the fixed base (8) is fixed to the movable base (1) by means of the screws.

4. A transfer machine test machine lifting device according to claim 1, characterized in that: A support plate (9) is provided on the top of the movable platform (3), and the width of the support plate (9) is greater than the width of the movable platform (3), and the support plate (9) is a soft plate.

5. The test machine lifting device for a transfer machine according to claim 1, characterized in that: A nut tube (10) is embedded below one side of the movable platform (3), and one end of the fastening bolt (6) is threadably matched with the nut tube (10).

6. A transfer machine test machine lifting device according to claim 1, characterized in that: Reinforcement feet (11) are provided at both ends below both sides of the support platform (2), and the reinforcement feet (11) are arranged obliquely, and the lower ends of the reinforcement feet (11) are connected to the moving seat (1).

7. A transfer machine test and lifting device according to any one of claims 1 to 6, characterized in that: Universal wheels (12) are provided at the four corners of the bottom of the movable seat (1), and nut sleeves (13) are provided at the four corners inside the movable seat (1). A screw rod (14) is installed on the internal thread of the nut sleeve (13), and a supporting foot (15) is provided at the lower end of the screw rod (14).

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