CN210795640U - A hydraulic lifting device - Google Patents

Abstract

The utility model discloses a hydraulic lifting device, which comprises a supporting plate, hydraulic supports at two sides and a supporting mechanism; the hydraulic support comprises a support, an oil cylinder and a lifting rod, the lower end of the lifting rod is arranged in the support, and the upper end of the lifting rod penetrates out of the oil cylinder; an upper clamping head used for driving the lifting rod to move upwards is arranged at the top of the oil cylinder, a lower clamping head used for limiting the lifting rod to slide downwards is arranged between the oil cylinder and the support, the lifting rod penetrates through the upper clamping head and the lower clamping head, a supporting block is arranged at the lower end of the lifting rod, one part of the supporting block is arranged in the support, the other part of the supporting block extends out of the support along the horizontal direction, and the supporting block can slide up and down along the support; the supporting plate is fixedly arranged on the supporting blocks of the hydraulic supports on the two sides; the supporting mechanism comprises a base, two parallel placing chutes II are arranged on the base, two supporting devices are arranged on the chutes II, and the supporting devices are used for supporting the supporting plate. The device can directly lift the heavy object from the ground, and supports the heavy object at the bottom, thereby ensuring the stability of the heavy object in the lifting process.

Description

A hydraulic lifting device

technical field

The utility model relates to the technical field of lifting devices, in particular to a hydraulic lifting device.

Background technique

When lifting some heavy objects, a lifting device is required so that the lifted objects can be lifted into place securely and safely. The traditional upside-down method uses a chain hoist device to lift large objects. The chain hoist device lifts the tank body through the inverted chain between the lifting lug of the chain hoist and the lifting lug welded on the tank wall to improve stability. It is not high, and the lifted object is easy to shake during lifting, and it is not easy to accurately place it; and the existing device for lifting heavy objects from the bottom cannot lift the heavy objects directly from the ground, and needs to use other external forces to lift the heavy objects first. It can only be used when the height of the lifting device can be accommodated, which also brings great inconvenience to the lifting of heavy objects.

Utility model content

The purpose of this utility model is to provide a hydraulic lifting device to solve the problems existing in the prior art, which can directly lift the heavy object from the ground and support it at the bottom of the heavy object to ensure the stability of the heavy object during the lifting process. sex.

In order to achieve the above purpose, the utility model provides the following solutions: the utility model provides a hydraulic lifting device, comprising a pallet, hydraulic supports located on both sides of the pallet, and a support mechanism arranged at the bottom of the pallet;

The hydraulic support includes a support for vertical equipment, an oil cylinder installed directly above the support, and a lifting rod. The lower end of the lifting rod is placed in the support, and the upper end passes through the oil cylinder; an upper chuck for the upward movement of the lift rod, a lower chuck for restricting the downward slide of the lift rod is installed between the oil cylinder and the bracket, the lift rod penetrates the upper chuck and the lower chuck, and The lower end of the lifting rod is provided with a support block, a part of the support block is placed in the support, and the other part extends from the support in a horizontal direction, and the support block can slide up and down along the support; the The support plate is fixedly installed on the support blocks of the hydraulic supports on both sides;

The support mechanism includes a base, and two parallel chute two are arranged on the base, and two support devices are arranged on the second chute, and the support devices are used to support the support plate.

Preferably, the upper clamping head and the lower clamping head have the same structure, including an end cover, a clamping head spring, a clamping block seat, and a clamping block enclosed on the outer circumference of the lifting rod, and the clamping block is a multi-lobed structure assembled on the clamping block. In the block seat, the inner wall of the clamping block seat is a cone with a larger diameter at the upper end and a smaller lower diameter, the end cover is arranged above the clamping block, the clamping head spring is sleeved on the lifting rod, and the upper end is fixedly connected with the end cover. The block seat of the upper chuck is fixed to the top of the oil cylinder, the block seat of the lower chuck is fixed to the bracket, the end cover is threaded with the outer surface of the block seat, and the end cover is screwed down, the spring of the chuck is compressed and downward Squeeze the clamping block so that the clamping block hugs the lifting rod.

Preferably, the bracket is assembled from two B-shaped channel steels, and the bracket has a vertical slideway for the sliding of the support block; the vertical slideway has a guide plate for guiding the sliding of the support block.

Preferably, the length of the support block extending out of the bracket is greater than 100mm; the bracket is provided with two layers of installation platforms, the lower installation platform is used for installing the lower chuck, and the upper installation platform is used for installing the oil cylinder.

Preferably, the bottom of the lifting rod has a small circular platform, the support block is sleeved on the lifting rod, and the small platform drags the bottom of the support block.

Preferably, the support device includes two mutually intersecting struts, bolts are arranged at the intersection, each two struts slide on each chute 2 respectively, an air pump is arranged between the support devices, and a pressure pump is arranged on the air pump. rod, and the top end of the pressing rod is connected to the supporting plate.

Preferably, a universal wheel is provided at the bottom of the base; T-shaped platforms are integrally provided along both sides of the bottom of the pallet, and the T-shaped platforms on both sides are respectively arranged close to the hydraulic support and are connected with the pallet. The lengths of the plates are the same; the tops of the two struts on the same support frame are connected and provided with a chute matching the T-shaped table.

Preferably, the top end of the pressing rod is provided with a gasket, and the upper end of the gasket is provided with a buffer pad.

The utility model has achieved the following technical effects with respect to the prior art:

The hydraulic lifting device in the utility model is erected with the support plate between the hydraulic supports on both sides. Under the premise that the hydraulic support provides power, the lowest position of the support plate is close to the ground. After the lowest end of the pallet is pressed to contact the ground, it can be pushed into the bottom of the heavy object to contact with it. After the contact is stable, the hydraulic supports on both sides provide lifting force, and while the pallet is lifted, it drives the heavy object to move upwards. The pallet is fully supported at the bottom of the heavy object; when the heavy object is lifted to a certain height (consistent with the minimum height of the support mechanism), move the support mechanism to the pallet and lower it, and connect the chute at the top of the pole to the bottom of the pallet. The T-shaped table is matched; as the heavy objects continue to be lifted, the support mechanism is also lifted upwards under the action of the air pump, providing support for the heavy objects and ensuring the stable lifting of the heavy objects.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Figure 1 is a schematic diagram of the overall structure of the hydraulic lifting device;

Figure 2 is a schematic structural diagram of a hydraulic support to realize the up and down sliding of a lifting rod;

3 is a schematic structural diagram of an upper chuck;

4 is a schematic diagram of the overall structure of the support mechanism;

Fig. 5 is a partial enlarged view at A in Fig. 4;

Among them, 1 lifting rod; 2 upper chuck; 3 oil cylinder; 4 lower chuck; 5 bracket; 6 guide plate; 7 small platform; 8 bracket; 9 bracket; 10 support device; 11 base; 12 platform; 13 vertical Slide way; 14 chuck spring; 15 end cover; 16 chuck seat; 17 chuck; 18 chute one; 19 buffer pad; 20 washer; 21 bolt; 22 rod; 23 universal wheel; 24 pressure rod; 25 air pump; 26 spare air pump; 27 spare pressure rod; 28 chute two.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The purpose of this utility model is to provide a hydraulic lifting device to solve the problems existing in the prior art, which can directly lift the heavy object from the ground and support it at the bottom of the heavy object to ensure the stability of the heavy object during the lifting process. sex.

Based on this, the hydraulic lifting device provided by the utility model includes a support plate, hydraulic supports located on both sides of the support plate, and a support mechanism arranged at the bottom of the support plate; the hydraulic support includes a support for vertical equipment, an oil cylinder installed directly above the support, and Lifting rod, the lower end of the lifting rod is placed in the bracket, and the upper end of the lifting rod passes out of the oil cylinder; the top of the oil cylinder is equipped with an upper clip for driving the lifting rod to move upward, and a lower clip for restricting the downward sliding of the lifting rod is installed between the oil cylinder and the bracket The lifting rod runs through the upper chuck and the lower chuck, and the lower end of the lifting rod has a support block, a part of the support block is placed in the bracket, and the other part extends from the bracket along the horizontal direction, and the support block can slide up and down along the bracket; The support plate is fixedly installed on the support blocks of the hydraulic supports on both sides; the support mechanism includes a base, and two parallel chute 2 are arranged on the base, and two support devices are arranged on the chute two, and the support device is used to support the pallet .

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Please refer to Figures 1-5, wherein Figure 1 is a schematic diagram of the overall structure of the hydraulic lifting device; Figure 2 is a schematic diagram of the structure of the hydraulic support to realize the lifting rod sliding up and down; Figure 3 is a schematic diagram of the structure of the upper chuck; Figure 4 is a schematic diagram of the support mechanism Schematic diagram of the overall structure; FIG. 5 is a partial enlarged view of A in FIG. 4 .

As shown in FIGS. 1-5 , the present invention provides a hydraulic lifting device, which includes a pallet 9 , hydraulic supports located on both sides of the pallet 9 , and a support mechanism arranged at the bottom of the pallet 9 .

The hydraulic support includes the support 5 of the vertical equipment, the oil cylinder 3 installed directly above the support 5 and the lifting rod 1. The lower end of the lifting rod 1 is placed in the support 5, and the upper end passes through the oil cylinder 3. The top of the oil cylinder 3 is equipped with a driving rod for driving the lifting rod. 1. The upper chuck 2 that moves upward, the lower chuck 4 for restricting the downward sliding of the lifting rod 1 is installed between the oil cylinder 3 and the bracket 5. The lifting rod 1 passes through the upper upper chuck 2 and the lower chuck 4, and the lifting rod 1 The lower end has a support block 8, a part of the support block 8 is placed in the bracket 5, and the other part extends from the bracket 5 along the horizontal direction, and the support block 8 can slide along the bracket 5.

The upper clamping head 2 and the lower clamping head 4 have the same structure, and both include an end cover 15, a clamping head spring 14, a clamping block seat 16, and a clamping block 17 enclosed on the outer periphery of the lifting rod 1. The clamping block 17 is a multi-lobe structure assembled on the clamping block. In the seat 16, the inner wall of the clamping block seat 16 is tapered in diameter, the upper part is larger and the lower part is smaller, the end cover 15 is arranged above the clamping block 17, the clamping head spring 14 is sleeved on the lifting rod 1, and the upper end is fixedly connected with the end cover 15, The clamping block seat 16 of the upper clamping head 2 is fixedly connected to the top of the oil cylinder 3, the clamping block seat 16 of the lower clamping head 4 is fixedly connected to the bracket 5, the end cover 15 is screwed with the outer surface of the clamping block seat 16, and the end cover is screwed down. 15. The clamping spring 14 compresses and presses the clamping block 17 downward, so that the clamping block 17 hugs the lifting rod 1 tightly.

The bracket 5 is assembled from two B-shaped channel steels, and the bracket 5 has a vertical slideway 13 for sliding the support block 8 . The length of the support block 8 extending out of the bracket 5 is greater than 100 mm. The bracket 5 is provided with two layers of installation platforms 12 , the lower installation platform 12 is used to install the lower chuck 4 , and the upper installation platform 12 is used to install the oil cylinder 3 . The blocking block 17 is a three-lobed blocking block, a four-lobed blocking block or a five-lobed blocking block. The bottom of the lifting rod 1 has a small circular platform 7 , the support block 8 is sleeved on the lifting rod 1 , and the small platform 7 drags the bottom of the support block 8 . The vertical slideway 13 has a guide plate 6 for guiding the sliding of the bracket 8 .

When assembling the above hydraulic support, firstly rotate the upper chuck 2 of the oil cylinder 3 and the end cover 15 of the lower chuck 4 up to the apex, so that the lower end of the chuck spring 14 does not contact the clamping block 17, and the upper chuck 2 and the lower chuck The card head 4 is in the working state of loose card. Install the oil cylinder 3 and the upper chuck 2 on the mounting platform 12 at the upper end of the bracket 5 and fix them with screws, and install the lower chuck 4 on the mounting platform 12 below the oil cylinder 3 and fix them with screws. Then insert the lifting rod 1 from the lower end of the bracket 5, through the vertical slideway 13, the lower chuck 4, the oil cylinder 3 and the upper chuck 2. Screw the end caps 15 of the upper chuck 2 and the lower chuck 4 downwards, and the blocks 17 in the upper chuck 2 and the lower chuck 4 are pushed by the chuck spring 14 to lock the lifting rod 1 downward. live. Finally, adjust the upper chuck 2, the lower chuck 4, the oil cylinder 3 and the support 5 on the same line to complete the installation of the hydraulic support.

When the oil cylinder 3 is working, both the upper chuck 2 and the lower chuck 4 are in a locked state.

Specifically, the upper clamping head 2 and the lower clamping head 4 press the clamping block 17 downward through the clamping head spring 14 to hold the lifting rod 1 tightly. The oil cylinder 3 is fed and extended, and the block seat 16 of the upper chuck 2 rises. The block 17 holds the lifting rod 1 tightly, and the support block 8 at the lower end of the lifting rod 1 drags the object to be lifted, and the block seat 16 moves upward and is driven The clamping block 17 moves upward, and the supporting block 8 generates resistance due to dragging the object to be lifted, so that the clamping block 17 is pressed in the clamping block seat 16, and the clamping block 17 tightly hugs the lifting rod 1, thereby driving the lifting rod 1 to follow upward. sports. When the lifting rod 1 rises, the clamping block 17 of the lower clamping head 4 also hugs the lifting rod 1 at the beginning, and the clamping block 17 will move upward with the lifting rod 1 under the upward force. And the clamping block seat 16 of the lower clamping head 4 is fixed on the bracket 5 and is stationary, and the clamping block 17 of the lower clamping head 4 is upward in the clamping block seat 16 to automatically release the lifting rod 1 . When the oil cylinder 3 is extended at the maximum stroke, the oil cylinder 3 stops extending, and the lifting rod 1 stops moving because there is no upward force. The oil cylinder 3 moves downward, and the block 17 of the lower chuck 4 is subjected to the downward force of the lifting rod 1 and the downward thrust of the chuck spring 14, and hugs the lifting rod 1, so that the lifting rod 1 cannot move downward. The oil cylinder 3 continues to descend, the block 17 of the upper chuck 2 does not move because the lifting rod 1 is tightly held, and the block seat 16 of the upper chuck 2 moves downward with the oil cylinder 3, so that the block 17 of the upper chuck 2 automatically moves. Loosen the lifting rod 1, the upper chuck 2 returns with the cylinder 3 to complete a lift, the cylinder 3 is repeatedly extended and retracted many times, and the lifting rod 1 drives the support block 8 to move upward one by one.

When the above hydraulic support lifts the lifted object, the part of the support block 8 extending from the support 5 is used to drag the support plate 9 to lift the lifted object, and the oil cylinder 3 is used to provide lifting power. The chuck 2 rises with the oil cylinder 3, which drives the lifting rod 1 to move upward, so that the support block 8 drags the lifted object to move upward. The lower chuck 4 restricts the lifting rod 1 from sliding downward, so that the support block 8 remains stationary when the oil cylinder 3 returns, and the oil cylinder 3 is repeatedly extended and retracted for many times. Height required.

Further, the support mechanism includes a base 11, two parallel chute 28 are arranged on the base 11, two support devices 10 are arranged on the second chute 28, the support device 10 is used to provide support for the pallet 9, supporting The device 10 includes two mutually intersecting struts 22, bolts 21 are provided at the intersection, each two struts 22 slide on each chute 28 respectively, an air pump 25 is provided between the supporting devices 10, and an air pump 25 is provided on the There is a pressing rod 24 , and the top end of the pressing rod 24 is connected to the pallet 9 .

In order to facilitate the movement or positioning of the device, a universal wheel 23 is provided at the bottom of the base 11 . In order to prevent failures during the conveying process, a backup air pump 26 is arranged between the support devices 10, and a backup pressure rod 27 is arranged on the backup air pump 26. Once the air pump fails, the backup air pump can be operated in time to reduce losses.

Generally, the pressing rod 24 is set to have at least two sections. When the length of the pressing rod 24 is too long, it is difficult for the support plate 9 to move to the lowest point when it moves downward. Because the pressing rod 24 moves back and forth frequently, it is easy to damage the pallet 9 to a certain extent. Therefore, the top end of the pressing rod 24 is provided with a washer 20 and the upper end of the washer 20 is provided with a buffer pad 19 .

The hydraulic lifting device in the utility model is erected with the support plate 9 between the hydraulic supports on both sides. Under the premise that the hydraulic support provides power, the lowest position of the support plate 9 is close to the ground. Because the support plate 9 itself has a certain shape Variable, after pressing the lowest end of the pallet 9 to the ground, it can be pushed into the bottom of the heavy object to contact it. After the contact is stable, the hydraulic supports on both sides provide lifting force, and while the pallet 9 is held up, it drives the heavy object to produce an upward movement. Displacement, at this time, the pallet 9 is fully supported at the bottom of the heavy object; when the heavy object is lifted to a certain height (consistent with the minimum height of the support mechanism), the support mechanism is moved to the pallet 9 and lowered to the top of the support rod 22. The first chute 18 is matched with the T-shaped table at the bottom of the pallet 9; as the heavy objects continue to be lifted, the support mechanism is also lifted upwards under the action of the air pump, providing support for the heavy objects and ensuring the stable lifting of the heavy objects.

The principles and implementations of the present utility model are described with specific examples in the present utility model, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model; meanwhile, for those skilled in the art , according to the idea of the present utility model, there will be changes in the specific implementation and application scope. In conclusion, the content of this specification should not be construed as a limitation on the present invention.

Claims (8)

1. A hydraulic lifting device, characterized in that: the hydraulic support device comprises a supporting plate, hydraulic supports positioned on two sides of the supporting plate and a supporting mechanism arranged at the bottom of the supporting plate;

the hydraulic support comprises a support vertical to equipment, an oil cylinder and a lifting rod, wherein the oil cylinder and the lifting rod are arranged right above the support; an upper clamping head used for driving the lifting rod to move upwards is arranged at the top of the oil cylinder, a lower clamping head used for limiting the lifting rod to slide downwards is arranged between the oil cylinder and the support, the lifting rod penetrates through the upper clamping head and the lower clamping head, a supporting block is arranged at the lower end of the lifting rod, one part of the supporting block is arranged in the support, the other part of the supporting block extends out of the support along the horizontal direction, and the supporting block can slide upwards and downwards along the support; the supporting plate is fixedly arranged on the supporting blocks of the hydraulic supports on two sides;

the supporting mechanism comprises a base, two parallel sliding grooves II are formed in the base, two supporting devices are arranged on the sliding grooves II, and the supporting devices are used for supporting the supporting plate.

2. The hydraulic lifting device of claim 1, wherein: the upper clamping head is the same as the lower clamping head in structure and comprises end covers, clamping head springs, clamping block seats and clamping blocks surrounding the periphery of the lifting rod, the clamping blocks are spliced in the clamping block seats in a multi-disc structure, the inner walls of the clamping block seats are conical with the diameters being large at the top and small at the bottom, the end covers are arranged above the clamping blocks, the clamping head springs are sleeved on the lifting rod, the upper ends of the clamping head springs are fixedly connected with the end covers, the clamping block seats of the upper clamping heads are fixedly connected with the top of the oil cylinder, the clamping block seats of the lower clamping heads are fixedly connected with the support, the end covers are in threaded fit with the outer surfaces of the clamping block seats, the end covers are screwed downwards, the clamping head springs compress.

3. The hydraulic lifting device of claim 1, wherein: the bracket is formed by splicing two B-shaped channel steels, and a vertical slideway for the supporting block to slide is reserved in the bracket; and a guide plate for guiding the sliding of the supporting block is arranged in the vertical slide way.

4. The hydraulic lifting device of claim 1, wherein: the length of the supporting block extending out of the bracket is more than 100 mm; two layers of mounting platforms are mounted on the support, the mounting platform on the lower layer is used for mounting the lower clamping head, and the mounting platform on the upper layer is used for mounting the oil cylinder.

5. The hydraulic lifting device of claim 1, wherein: the bottom of the lifting rod is provided with a small round platform, the support block is sleeved on the lifting rod, and the small platform drags the bottom of the support block.

6. The hydraulic lifting device of claim 1, wherein: the supporting device comprises two supporting rods which are mutually crossed, a bolt is arranged at the crossed position, every two supporting rods respectively slide on the second sliding grooves, an air pump is arranged between the supporting devices, a pressing rod is arranged on the air pump, and the top end of the pressing rod is connected to the supporting plate.

7. The hydraulic lifting device of claim 6, wherein: the bottom of the base is provided with universal wheels; t-shaped platforms are integrally arranged along two sides of the bottom of the supporting plate, and the T-shaped platforms at the two sides are respectively close to the hydraulic support and have the same length as the supporting plate; and the tops of the two support rods on the same support frame are connected and provided with a first sliding groove matched with the T-shaped platform.

8. The hydraulic lifting device of claim 6, wherein: the top of depression bar is provided with the gasket, the upper end of gasket is provided with the blotter.

Images