Lifting device for crawler crane with stable lifting

Abstract

The utility model belongs to the field of hoisting equipment, and particularly relates to a hoisting device for a crawler crane, which is stable in hoisting and comprises a support plate, a fixing block, a first fixing clamp, a second fixing clamp and a screw. A lifting ring is fixedly connected to the top side of the supporting plate; the pair of fixing blocks are symmetrically located on the two sides of the supporting plate, the first fixing clamp, the second fixing clamp, the fixing blocks, the supporting plate, a lifting hook and a threaded rod are arranged, in the using process, the first fixing clamp and the second fixing clamp are located on the two sides of a pipeline, then the threaded rod is rotated, and therefore the first fixing clamp and the second fixing clamp are driven to be closed and clamp to fix the pipeline; according to the device, hoisting is more stable, the situation of shaking during hoisting can be reduced, so that the situation of pipeline falling can be reduced, in the fixing process, a worker only needs to rotate the screw rod to fix the pipeline, operation is simple, and therefore the crawler crane can conveniently hoist the pipeline.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, in particular to a lifting device for a crawler crane with stable lifting performance. Background Art

[0002] Crawler crane, also known as crawler crane, is a lifting equipment used in construction. Because its bottom moves through crawlers, it is called a crawler crane.

[0003] In the current existing technology, the lifting device for pipeline lifting is mainly composed of a lifting ring and a lifting belt. The lifting ring is installed on the crawler crane, and then the lifting belt is put on the pipeline. The pipeline is fixed by relying on the friction between the lifting belt and the pipeline surface. The steel cable of the crawler crane is pulled to lift the hook and the pipeline.

[0004] However, during lifting, the fixing effect of the lifting belt is poor, and the stability during lifting is poor, which will cause the pipeline to shake and thus cause the pipeline to fall off; therefore, in order to solve the above problems, a lifting device for a crawler crane with stable lifting is proposed. Utility Model Content

[0005] In order to remedy the deficiencies of the prior art and solve the problem that the fixing effect of the sling is poor during lifting, and the stability is poor during lifting, which in turn causes the pipeline to shake and thus causes the pipeline to fall off, the utility model proposes a lifting device for a crawler crane with stable lifting.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a lifting device for a crawler crane with stable lifting, comprising a support plate, a fixed block, a first fixed clamp, a second fixed clamp and a screw; a lifting ring is fixedly connected to the top side of the support plate; a pair of fixed blocks are symmetrically located on both sides of the support plate; the first fixed clamp is fixedly connected to the bottom side of the fixed block; a sliding groove is provided at the bottom of the fixed block; the top of the second fixed clamp is inserted into the sliding groove and is slidably connected to the sliding groove; the screw penetrates the wall of the sliding groove and is rotatably connected to the wall; the screw penetrates the second fixed clamp and is threadedly connected to the wall.

[0007] Preferably, two pairs of adjustment rods are symmetrically fixed on both sides of the support plate; the adjustment rods pass through the fixed block and are slidably connected thereto; a group of adjustment holes are provided on the adjustment rods; the fixed block and the adjustment rods are detachably fixed by bolts.

[0008] Preferably, the first fixing clamp and the second fixing clamp are both fixedly connected to rubber pads on their sides close to each other; and the adjustment rod is fixedly connected to a limiting plate on its side away from the support plate.

[0009] Preferably, a guide groove is provided on the side of the slide groove; a guide rail is fixedly connected to the bottom side of the guide groove; a pair of rotating shafts are symmetrically fixedly connected to the two sides of the second fixing clamp; a guide wheel is rotatably connected to the rotating shaft; and the guide wheel is in contact with the top side of the guide rail.

[0010] Preferably, a thread is provided on the end of the rotating shaft; a nut is connected to the rotating shaft through the thread; a connecting ring is sleeved on the rotating shaft; the connecting ring is located on the side of the guide wheel away from the second fixing clamp; a spring is fixedly connected to the side of the connecting ring away from the guide wheel; a graphite block is fixedly connected to the side of the connecting ring close to the guide wheel.

[0011] Preferably, a ring body is fixedly connected to the rotating shaft; the connecting ring is sleeved on the ring body and slidably connected thereto; a dust guide tube is fixedly connected to the side of the ring body; a scraper is fixedly connected to the side of the dust guide tube; and the bottom end of the dust guide tube is located at the top of the guide rail.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model is provided with a first fixing clamp, a second fixing clamp, a fixing block, a support plate, a hook and a screw rod. When in use, the first fixing clamp and the second fixing clamp are located on both sides of the pipeline, and then the screw rod is rotated to drive the first fixing clamp and the second fixing clamp to close, clamp and fix the pipeline. The device is more stably lifted, and the shaking during lifting can be reduced, thereby reducing the falling of the pipeline. When fixing, the staff only needs to rotate the screw rod to complete the fixing of the pipeline. The operation is simple, so that the crawler crane can be used to lift the pipeline.

[0014] 2. The utility model is provided with an adjustment plate. When in use, the staff can pull the fixing block to move the fixing block on the adjusting rod and then pass the bolt through the adjusting hole to fix the fixing block by the bolt, so that the positions of the first fixing clamp and the second fixing clamp can be adjusted, so that pipes of different lengths can be clamped, thereby improving the application range of the device and facilitating the use of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the support plate structure of the first embodiment;

[0017] Figure 2 This is a schematic diagram of the structure of the fixed block of the first embodiment;

[0018] Figure 3 For Example 1 Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 This is a schematic diagram of the guide wheel structure of the first embodiment;

[0020] Figure 5 It is a schematic diagram of the structure of the card block of the second embodiment.

[0021] In the figure: 11, support plate; 12, fixing block; 13, first fixing clamp; 14, second fixing clamp; 15, screw; 16, lifting ring; 21, adjusting rod; 22, adjusting hole; 31, rubber pad; 32, limit plate; 41, guide rail; 42, rotating shaft; 43, guide wheel; 51, connecting ring; 52, nut; 53, graphite block; 54, spring; 61, ring body; 62, dust guide pipe; 63, scraper; 7, clamping block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-4As shown, a lifting device for a crawler crane with stable lifting comprises a support plate 11, a fixing block 12, a first fixing clamp 13, a second fixing clamp 14 and a screw 15; a lifting ring 16 is fixedly connected to the top side of the support plate 11; a pair of fixing blocks 12 are symmetrically located on both sides of the support plate 11; the first fixing clamp 13 is fixedly connected to the bottom side of the fixing block 12; a slide groove is provided at the bottom of the fixing block 12; the top of the second fixing clamp 14 is inserted into the slide groove and slidably connected thereto; the screw 15 penetrates the slide groove wall and is rotatably connected thereto; the screw 15 penetrates the second fixing clamp 14 and is threadedly connected thereto; during lifting, the fixing effect of the lifting belt is poor, and the stability during lifting is poor, so it is inconvenient for the staff to lift the pipeline. When in use, the lifting ring 16 is installed on the crawler crane The lifting ring 16 is then placed on the support plate 11 by controlling the lifting ring 16, the first fixing clamp 13 and the second fixing clamp 14 are located on both sides of the pipeline, and then the screw rod 15 is rotated, and then the screw rod 15 drives the second fixing clamp 14 to move through the thread, thereby driving the first fixing clamp 13 and the second fixing clamp 14 to close, so as to clamp and fix the pipeline. The fixing effect of this setting is greater than that of the sling. Since the material is rigid, it is harder than the sling, so that it can be lifted more stably, and the shaking during lifting can be reduced, thereby reducing the situation of the pipeline falling off. When fixing, the staff only needs to rotate the screw rod 15 to complete the fixation of the pipeline, and the operation is simple, so that it is convenient for the crawler crane to lift the pipeline.

[0025] The present practical embodiment further provides that two pairs of adjusting rods 21 are symmetrically fixed on both sides of the support plate 11; the adjusting rods 21 pass through the fixing block 12 and are slidably connected thereto; a group of adjusting holes 22 are opened on the adjusting rod 21; the fixing block 12 and the adjusting rod 21 are detachably fixed by bolts; when in use, the staff can pull the fixing block 12 to move the fixing block 12 on the adjusting rod 21 and then pass the bolts through the adjusting holes 22 to fix the fixing block 12 by means of the bolts, so that the positions of the first fixing clamp 13 and the second fixing clamp 14 can be adjusted, so that pipes of different lengths can be clamped, thereby improving the scope of application of the device and facilitating use by the staff.

[0026] The practical embodiment further provides that the first fixing clamp 13 and the second fixing clamp 14 are fixedly connected to a rubber pad 31 on one side close to each other; the adjusting rod 21 is fixedly connected to a limiting plate 32 on one side away from the supporting plate 11; when in use, by providing the rubber pad 31, the friction between the first fixing clamp 13, the second fixing clamp 14 and the pipeline can be increased, thereby improving the fixing effect of the pipeline and making it less likely to move; by providing the limiting plate 32, the movement of the fixing block 12 can be limited, thereby reducing the situation where it falls off the adjusting rod 21.

[0027] The present practical embodiment further provides that a guide groove is provided on the side of the slide groove; a guide rail 41 is fixedly connected to the bottom side of the guide groove; a pair of rotating shafts 42 are symmetrically fixedly connected to the two sides of the second fixing clamp 14; a guide wheel 43 is rotatably connected to the rotating shaft 42; the guide wheel 43 is in contact with the top side of the guide rail 41; when in use, the second fixing clamp 14 moves, and during the movement, it will drive the rotating shaft 42 and the guide wheel 43 to move, and the guide wheel 43 rolls on the guide rail 41. By providing the guide wheel 43 and the guide rail 41, the second fixing clamp 14 can be supported, thereby sharing the pressure of the screw 15 and extending the service life of the device. The friction of movement can be reduced by the rolling of the guide wheel 43.

[0028] The present practical embodiment further provides that the end of the rotating shaft 42 is provided with a thread; a nut 52 is connected to the rotating shaft 42 through a thread; a connecting ring 51 is sleeved on the rotating shaft 42; the connecting ring 51 is located on the side of the guide wheel 43 away from the second fixing clamp 14; a spring 54 is fixedly connected to the side of the connecting ring 51 away from the guide wheel 43; a graphite block 53 is fixedly connected to the side of the connecting ring 51 close to the guide wheel 43; when in use, the staff sleeves the connecting ring 51 on the rotating shaft 42 and rotates the nut 52, and then the nut 52 will be squeezed and fitted, so as to keep the graphite block 53 in contact with the guide wheel 43. During the rotation of the guide wheel 43, it will seal the graphite block 53 to produce graphite powder, and then the graphite powder will fall on the rotating shaft 42, so as to lubricate the rotating shaft 42 and the guide wheel 43, thereby reducing the situation in which the guide wheel 43 is rusted during long-term use, making it difficult to move the second fixing clamp 14. After continuous wear, the graphite block 53 is kept in contact with the guide wheel 43 by setting the spring 54.

[0029] The present practical embodiment further provides that a ring body 61 is fixedly connected to the rotating shaft 42; the connecting ring 51 is sleeved on the ring body 61 and is slidably connected thereto; a dust guide tube 62 is fixedly connected to the side of the ring body 61; a scraper 63 is fixedly connected to the side of the dust guide tube 62; the bottom end of the dust guide tube 62 is located at the top of the guide rail 41; when in use, excess graphite powder will be scraped off by the scraper 63 and fall into the dust guide tube 62, and then the graphite powder will fall onto the guide rail 41 through the dust guide tube 62, so that the guide rail 41 and the guide wheel 43 can be lubricated, thereby reducing the friction during movement.

[0030] Embodiment 2

[0031] See also Figure 5As shown, compared with Example 1, as another implementation of the utility model, a pair of clamping blocks 7 are fixedly connected to the side of the connecting ring 51; clamping grooves are provided at the corresponding positions of the connecting ring 51 and the clamping block 7; the clamping block 7 is slidably connected to the clamping groove. When in use, the connecting ring 51 is clamped by the clamping block 7, so that the connecting ring 51 can be fixed, and then the graphite block 53 can be fixed, so that it is not easy for the graphite block 53 to rotate due to friction.

[0032] Working principle: during hoisting, the fixing effect of the sling is poor, and the stability during hoisting is poor, so it is not convenient for the staff to hoist the pipeline. When in use, the lifting ring 16 is installed on the lifting ring 16 of the crawler crane, and then the support plate 11 is placed on the pipeline by controlling the lifting ring 16. The first fixing clamp 13 and the second fixing clamp 14 are located on both sides of the pipeline. Then the screw 15 is rotated, and then the screw 15 drives the second fixing clamp 14 to move through the thread, thereby driving the first fixing clamp 13 and the second fixing clamp 14 to close, so as to clamp and fix the pipeline. The fixing effect of this setting is greater than that of the sling. Because the material is rigid, it is harder than the sling, so that it can be lifted more stably and can reduce The shaking occurs during hoisting, thereby reducing the possibility of the pipeline falling off, and when fixing, the staff only needs to rotate the screw 15 to complete the fixing of the pipeline, which is simple to operate, so that the crawler crane can be used to hoist the pipeline. When in use, the staff can pull the fixing block 12 to move the fixing block 12 on the adjusting rod 21 and then pass the bolt through the adjusting hole 22, and fix the fixing block 12 by means of the bolt, so that the position of the first fixing clamp 13 and the second fixing clamp 14 can be adjusted, so that pipelines of different lengths can be clamped, thereby improving the application range of the device and facilitating the use of the staff. By setting the rubber pad 31, the friction between the first fixing clamp 13, the second fixing clamp 14 and the pipeline can be increased. Thereby, the fixing effect of the pipeline can be improved, so that it is not easy to move. By setting the limit plate 32, the movement of the fixing block 12 can be limited, thereby reducing the situation of it falling off from the adjusting rod 21. When in use, the second fixing clamp 14 moves, and during the movement, it will drive the rotating shaft 42 and the guide wheel 43 to move. At the same time, the guide wheel 43 rolls on the guide rail 41. The second fixing clamp 14 can be supported by setting the guide wheel 43 and the guide rail 41, so that the pressure of the screw 15 can be shared and the service life of the device can be extended. The friction of movement can be reduced by rolling the guide wheel 43. When in use, the staff will put the connecting ring 51 on the rotating shaft 42 and rotate the nut 52, and then the nut 52 will squeeze the contact surface of the fixing block 12. The graphite block 53 is sealed during the rotation of the guide wheel 43, so that graphite powder is generated, and then the graphite powder falls on the rotating shaft 42, so that the rotating shaft 42 and the guide wheel 43 can be lubricated, thereby reducing the rust of the guide wheel 43 during long-term use, which makes it difficult to move the second fixing clamp 14. After continuous wear, the contact between the graphite block 53 and the guide wheel 43 is maintained by setting a spring 54. When in use, excess graphite powder is scraped off by the scraper 63 and falls into the dust guide pipe 62, and then the graphite powder falls on the guide rail 41 through the dust guide pipe 62, so that the guide rail 41 and the guide wheel 43 can be lubricated, thereby reducing the friction during movement.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A lifting device for a crawler crane with stable lifting, characterized in that: The invention comprises a support plate (11), a fixing block (12), a first fixing clamp (13), a second fixing clamp (14) and a screw rod (15); a lifting ring (16) is fixedly connected to the top side of the support plate (11); a pair of fixing blocks (12) are symmetrically located on both sides of the support plate (11); the first fixing clamp (13) is fixedly connected to the bottom side of the fixing block (12); a sliding groove is provided at the bottom of the fixing block (12); the top of the second fixing clamp (14) is inserted into the sliding groove and is slidably connected thereto; the screw rod (15) passes through the wall of the sliding groove and is rotatably connected thereto; the screw rod (15) passes through the second fixing clamp (14) and is threadedly connected thereto.

2. A lifting device for a crawler crane with stable lifting according to claim 1, characterized in that: Two pairs of adjusting rods (21) are symmetrically fixedly connected to the two sides of the support plate (11); the adjusting rods (21) penetrate the fixing block (12) and are slidably connected thereto; a group of adjusting holes (22) are provided on the adjusting rods (21); the fixing block (12) and the adjusting rods (21) are detachably fixedly connected by bolts.

3. A lifting device for a crawler crane with stable lifting according to claim 2, characterized in that: The first fixing clamp (13) and the second fixing clamp (14) are both fixedly connected to a rubber pad (31) on the side close to each other; and the adjustment rod (21) is fixedly connected to a limiting plate (32) on the side away from the support plate (11).

4. A lifting device for a crawler crane with stable lifting according to claim 3, characterized in that: A guide groove is provided on the side of the slide groove; a guide rail (41) is fixedly connected to the bottom side of the guide groove; a pair of rotating shafts (42) are symmetrically fixedly connected to the two sides of the second fixing clamp (14); a guide wheel (43) is rotatably connected to the rotating shaft (42); and the guide wheel (43) is in contact with the top side of the guide rail (41).

5. The lifting device for a crawler crane with stable lifting according to claim 4, characterized in that: The end of the rotating shaft (42) is provided with a thread; a nut (52) is connected to the rotating shaft (42) through the thread; a connecting ring (51) is sleeved on the rotating shaft (42); the connecting ring (51) is located on a side of the guide wheel (43) away from the second fixing clamp (14); a spring (54) is fixedly connected to the side of the connecting ring (51) away from the guide wheel (43); and a graphite block (53) is fixedly connected to the side of the connecting ring (51) close to the guide wheel (43).

6. A lifting device for a crawler crane with stable lifting according to claim 5, characterized in that: A ring body (61) is fixedly connected to the rotating shaft (42); the connecting ring (51) is sleeved on the ring body (61) and is slidably connected thereto; a dust guide tube (62) is fixedly connected to the side of the ring body (61); a scraper (63) is fixedly connected to the side of the dust guide tube (62); and the bottom end of the dust guide tube (62) is located at the top of the guide rail (41).

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