Rail type hydraulic lifting device

Abstract

The utility model relates to the technical field of mold transportation, and discloses a rail type hydraulic lifting device which comprises a movable bottom plate and portal frames installed on the movable bottom plate in a sliding mode, sliding rails used for guiding the portal frames to slide are arranged on the movable bottom plate, and a lifting plate is installed between the portal frames in a sliding mode. Hydraulic telescopic cylinders used for driving the lifting plate to move up and down are fixedly installed on the two sides of the portal frame. A connecting mechanism used for being connected with a mold is slidably mounted on the lifting plate and comprises two limiting assemblies mounted below the lifting plate, and a threaded sleeve is fixedly mounted at the upper end of each limiting assembly. The lifting plate is rotationally provided with a double-end threaded rod used for driving the two limiting assemblies to be close to or away from each other. The die can be conveniently driven to move up and down, and the butt joint surfaces of the two half dies are prevented from rubbing each other in the moving process of the die.

Description

Technical Field

[0001] The utility model relates to the technical field of mould transportation, in particular to a track type hydraulic lifting device. Background Art

[0002] Usually, during the transportation of the molding mold, a tower crane is used to hang the mold and transport it along a predetermined track. However, during the transportation of the cylindrical mold, it is inconvenient to hang the round mold around and it is not convenient to transport it by a tower crane. In addition, during the lifting process, since the cylindrical mold usually consists of two halves, the center of gravity shakes with the crane, and the two halves of the cylindrical mold are easily offset from each other during the lifting process, causing friction between the joint surfaces, which affects the service life of the cylindrical mold. Utility Model Content

[0003] The purpose of the utility model is to provide a track-type hydraulic lifting device to solve the problem that when the existing tower crane is used to lift the cylindrical mold as mentioned in the above background technology, the circular mold is not convenient to be hung around and is not convenient to be transported by the tower crane. In addition, during the lifting process, since the cylindrical mold usually consists of two halves, the center of gravity shakes with the crane, and the two halves of the cylindrical mold are easily offset from each other during the lifting process, causing friction between the butt surfaces, thereby affecting the service life of the cylindrical mold.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a track-type hydraulic lifting device, comprising a moving bottom plate and a gantry slidably mounted on the moving bottom plate, the moving bottom plate is provided with a slide rail for guiding the gantry to slide, a lifting plate is slidably mounted between the gantry, and hydraulic telescopic cylinders for driving the lifting plate to move up and down are fixedly mounted on both sides of the gantry;

[0005] A connecting mechanism for connecting to the mold is slidably installed on the lifting plate, and the connecting mechanism includes two groups of limit assemblies respectively installed below the lifting plate. A threaded sleeve is fixedly installed on the upper end of each group of limit assemblies, and a double-headed threaded rod is rotatably installed on the lifting plate to drive the two groups of limit assemblies to move closer to or away from each other.

[0006] Furthermore, a groove is provided on one side of the movable bottom plate, and the groove is located below the middle part of the gantry.

[0007] Furthermore, roller groups are provided at the bottom of both sides of the gantry, and the roller groups roll on the upper end surface of the movable bottom plate, and the middle part of the roller groups crosses the slide rail.

[0008] Furthermore, slide grooves are provided on both sides of the gantry, and the two ends of the lifting plate pass through the two slide grooves respectively, and the hydraulic telescopic cylinders are respectively located on both sides of the gantry.

[0009] Furthermore, a driving motor for driving the double-headed threaded rod to rotate is fixedly installed on the lifting plate, and the middle part of the double-headed threaded rod is rotatably connected to the lifting plate through a positioning sleeve.

[0010] Furthermore, a cross bar is provided at the bottom of the lifting plate, and a strip-shaped through hole is provided in the length direction of the lifting plate. The limiting assembly also includes a sliding block, and a limiting groove for clamping on the cross bar is provided above the sliding block. The upper end of the sliding block is fixedly connected to the outer side of the threaded sleeve by a fixing bolt, and the fixing bolt slides inside the strip-shaped through hole.

[0011] Furthermore, a mounting plate is provided below the sliding block, a vertical rod is provided downwardly below the mounting plate, an arc plate is detachably installed on one side of the vertical rod facing the middle of the gantry, a bottom support is provided at the bottom of the vertical rod, and the lower surface of the bottom support is parallel to the lower surface of the arc plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a hydraulic telescopic cylinder and a lifting plate at the upper end of the hydraulic telescopic cylinder, so that the mold to be transported fixed under the lifting plate can be smoothly raised or lowered. During the rising or lowering process, the center of gravity is stable and will not shift or rotate. At the same time, two groups of symmetrically arranged limit assemblies can conveniently tighten and fix the cylindrical mold to be transported, avoiding displacement of the contact surface between the left and right molds and causing wear of the contact surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a track-type hydraulic lifting device of the utility model;

[0015] Figure 2 The utility model is a track type hydraulic lifting device Figure 1 A local enlarged structural schematic diagram;

[0016] Figure 3 This is a schematic diagram of the structure of a track-type hydraulic lifting device of the utility model from an upward perspective;

[0017] Figure 4 The utility model is a schematic diagram of the overall structure of a limit assembly of a track-type hydraulic lifting device.

[0018] In the figure: 1. movable base plate; 101. groove; 11. slide rail; 2. gantry; 201. slide groove; 21. roller group; 22. hydraulic telescopic cylinder; 3. lifting plate; 301. strip through hole; 31. positioning sleeve; 32. double-headed threaded rod; 33. driving motor; 34. cross bar; 4. limit assembly; 41. threaded sleeve; 42. sliding block; 43. mounting plate; 44. vertical rod; 4401. threaded through hole; 45. arc plate; 46. bottom support; 5. placement table. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a track-type hydraulic lifting device, comprising a moving base plate 1 and a gantry 2 slidably mounted on the moving base plate 1, a groove 101 is provided on one side of the moving base plate 1, and the groove 101 is located below the middle of the gantry 2.

[0021] The movable bottom plate 1 is provided with a slide rail 11 for guiding the gantry 2 to slide, and roller groups 21 are provided at the bottom of both sides of the gantry 2. The roller groups 21 roll on the upper end surface of the movable bottom plate 1, and the middle part of the roller groups 21 crosses the slide rail 11. A lifting plate 3 is slidably installed between the gantry 2, and hydraulic telescopic cylinders 22 for driving the lifting plate 3 to move up and down are fixedly installed on both sides of the gantry 2. The hydraulic telescopic cylinders 22 are electric hydraulic cylinders;

[0022] A connecting mechanism for connecting to the mold is slidably installed on the lifting plate 3, and the connecting mechanism includes two groups of limit assemblies 4 respectively installed below the lifting plate 3. A threaded sleeve 41 is fixedly installed on the upper end of each group of the limit assemblies 4. A double-headed threaded rod 32 is rotatably installed on the lifting plate 3 to drive the two groups of limit assemblies 4 to move closer to or away from each other.

[0023] During actual use of the utility model, the movable base plate 1 is first moved to the side of the table where the mold to be transported is placed, and then the lifting plate 3 is driven to descend to the top of the mold to be transported by the hydraulic telescopic cylinder 22, and then the two sets of limit assemblies 4 located on both sides below the lifting plate 3 are driven to approach each other by rotating the double-headed threaded rod 32 to clamp the mold to be transported, and then the hydraulic telescopic cylinder 22 is extended to drive the mold to be transported to rise, and then the mold to be transported can be conveniently transported to the designated work table by dragging the movable base plate 1, and the mold to be transported can be stably placed on the work table by adjusting the extension length of the hydraulic telescopic cylinder 22.

[0024] It should be noted that a pulley is provided below the movable bottom plate 1 , and during the transportation of the mold, the mold hoisted below the lifting plate 3 can be conveniently moved by pulling the movable bottom plate 1 .

[0025] Wherein, both sides of the gantry 2 are provided with slide grooves 201 , and both ends of the lifting plate 3 pass through the two slide grooves 201 respectively, and the hydraulic telescopic cylinders 22 are respectively located on both sides of the gantry 2 .

[0026] A driving motor 33 for driving the double-threaded rod 32 to rotate is fixedly mounted on the lifting plate 3 . The middle portion of the double-threaded rod 32 is rotatably connected to the lifting plate 3 via a positioning sleeve 31 .

[0027] In addition, a cross bar 34 is provided at the bottom of the lifting plate 3, and a strip through hole 301 is provided in the length direction of the lifting plate 3. The limiting assembly 4 also includes a sliding block 42, and a limiting groove for clamping on the cross bar 34 is provided above the sliding block 42. The upper end of the sliding block 42 is fixedly connected to the outer side of the threaded sleeve 41 by a fixing bolt, and the fixing bolt slides inside the strip through hole 301; a mounting plate 43 is provided below the sliding block 42, and a vertical rod 44 is downwardly provided below the mounting plate 43. An arc plate 45 is detachably installed on one side of the vertical rod 44 toward the middle of the gantry 2, and a bottom support 46 is provided at the bottom of the vertical rod 44, and the lower surface of the bottom support 46 is parallel to the lower surface of the arc plate 45.

[0028] In addition, a plurality of threaded through holes 4401 are sequentially arranged on the vertical rod 44 from top to bottom, and the arc plate 45 is fixedly mounted on the vertical rod 44 by screws, and the height of the arc plate 45 can be adjusted according to the specifications of the cylindrical mold to be transported.

[0029] Working principle: During use, by setting a hydraulic telescopic cylinder 22 and setting a lifting plate 3 at the upper end of the hydraulic telescopic cylinder 22, the mold to be transported fixed under the lifting plate 3 can be smoothly raised or lowered. During the rising or falling process, the center of gravity is stable and will not shift or rotate. At the same time, two groups of symmetrically arranged limit assemblies 4 can conveniently tighten and fix the cylindrical mold to be transported to avoid displacement of the contact surface between the left and right molds, which causes wear of the contact surface.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A track-type hydraulic lifting device, comprising a movable base plate (1) and a gantry (2) slidably mounted on the movable base plate (1), wherein the movable base plate (1) is provided with a slide rail (11) for guiding the gantry (2) to slide, characterized in that: A lifting plate (3) is slidably mounted between the gantry frames (2), and hydraulic telescopic cylinders (22) for driving the lifting plate (3) to move up and down are fixedly mounted on both sides of the gantry frames (2); A connection mechanism for connecting to the mold is slidably mounted on the lifting plate (3), and the connection mechanism comprises two groups of limit assemblies (4) respectively mounted below the lifting plate (3), a threaded sleeve (41) being fixedly mounted on the upper end of each group of limit assemblies (4), and a double-headed threaded rod (32) for driving the two groups of limit assemblies (4) to move closer to or away from each other is rotatably mounted on the lifting plate (3).

2. A rail-type hydraulic lifting device according to claim 1, characterized in that: A groove (101) is provided on one side of the movable bottom plate (1), and the groove (101) is located below the middle of the gantry (2).

3. A rail-type hydraulic lifting device according to claim 1, characterized in that: Roller groups (21) are provided at the bottom of both sides of the gantry (2). The roller groups (21) roll on the upper end surface of the movable bottom plate (1), and the middle part of the roller groups (21) crosses the slide rail (11).

4. A rail-type hydraulic lifting device according to claim 1, characterized in that: Slide grooves (201) are provided on both sides of the gantry (2), and both ends of the lifting plate (3) pass through the two slide grooves (201) respectively. The hydraulic telescopic cylinders (22) are respectively located on both sides of the gantry (2).

5. The track-type hydraulic lifting device according to claim 1, characterized in that: A driving motor (33) for driving the double-threaded rod (32) to rotate is fixedly mounted on the lifting plate (3). The middle portion of the double-threaded rod (32) is rotatably connected to the lifting plate (3) via a positioning sleeve (31).

6. The rail-type hydraulic lifting device according to claim 1, characterized in that: A cross bar (34) is provided at the bottom of the lifting plate (3), and a strip-shaped through hole (301) is provided in the length direction of the lifting plate (3). The limiting assembly (4) also includes a sliding block (42), and a limiting groove for clamping on the cross bar (34) is provided above the sliding block (42). The upper end of the sliding block (42) is fixedly connected to the outer side of the threaded sleeve (41) by a fixing bolt, and the fixing bolt slides inside the strip-shaped through hole (301).

7. A rail-type hydraulic lifting device according to claim 6, characterized in that: A mounting plate (43) is provided below the sliding block (42), a vertical rod (44) is provided downwardly below the mounting plate (43), a curved plate (45) is detachably mounted on one side of the vertical rod (44) facing the middle of the gantry (2), a bottom bracket (46) is provided at the bottom of the vertical rod (44), and the lower surface of the bottom bracket (46) is parallel to the lower surface of the curved plate (45).

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