Piston puller for loader

Abstract

The utility model belongs to the technical field of piston pullers for loaders, and particularly relates to a piston puller for a loader, which comprises a puller, a piston is slidably arranged in the top end of the puller, and a pulling component is arranged on one side of the puller. A first screw rod penetrates through the interior of the puller, and one end of the first screw rod penetrates into the interior of the piston; the bottom ends of the multiple supporting frames make contact with the ground, a stable supporting foundation is formed, so that the effect of supporting the whole component of the puller is achieved, sliding generated when the puller is directly installed on a cylinder sleeve assembly and a piston is pulled is reduced, the pulling stability is improved, meanwhile, a worm is rotated to drive a worm wheel to rotate in a meshed mode, and the pulling effect is improved. And then the second connecting frame is driven to rotate through the rotating shaft, so that the angle of the pressing rod is adjusted, the cylinder sleeve assembly can be pressed through the pressing rod, shaking of the cylinder sleeve assembly in the pulling process is reduced, and the pulling stability is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of piston puller for loader, specifically speaking, a kind of piston puller for loader. BACKGROUND

[0002] Loader is a kind of earthwork construction machinery widely used in highway, railway, building, water and electricity, port, mine and other construction projects, commonly known as forklift, mainly used for shoveling soil, sand and coal and other bulk materials, also can be used for light shovel operation to ore and hard soil.

[0003] Piston puller for loader is a tool specially designed to easily remove the piston from the brake caliper of the loader, when in use, the piston puller is installed on the cylinder sleeve assembly, the piston puller is connected with the piston by using the fixing ring, to ensure firm connection, the spring connects the screw rod with the piston through the nut, and finally uses the pulling assembly, which moves the piston under the driving of the screw rod by reciprocating drive, so as to realize the pulling of the piston.

[0004] When pulling the piston, the piston puller is usually installed on the cylinder sleeve assembly, when pulling the piston, the cylinder sleeve assembly plays a role in supporting the whole piston puller, but the shape of the bottom of some cylinder sleeve assemblies is irregular, which makes it difficult to provide enough stability and support force for the piston puller, so that the overall structure is easy to slide when pulling the piston, resulting in pulling failure, equipment damage, and even safety risk to the operator. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the prior art and solve at least one technical problem proposed in the background art, the utility model provides a piston puller for loader.

[0006] The utility model solves the technical problems by adopting the following technical scheme: the utility model discloses a kind of piston puller for loader, including puller, piston is slidably arranged in the top end of puller, and puller side is equipped with pulling assembly, first screw rod is penetrated in the inside of puller, and first screw rod one end is penetrated to the inside of piston, nut is threadedly arranged at the one end of first screw rod, a plurality of support frames are arranged around the outer wall of puller, and sliding sleeve is slidably arranged on the support frame, a plurality of through holes are formed in the support frame, and through hole is also formed in the inside of sliding sleeve, first connecting frame is installed at one end of sliding sleeve, and second connecting frame is hingedly connected to first connecting frame by hinge shaft at one end of first connecting frame, worm wheel is arranged at one end of hinge shaft, and worm wheel side is engaged with worm, worm is installed on first connecting frame, and pressure holding rod is arranged at one end of second connecting frame.

[0007] Preferably, the second screw rod is screwed through the inside of the fixed ring at both ends, and one end of the second screw rod is rotationally connected with a pressing ring, both ends of the pressing ring are fixedly connected with guide rods, and the other ends of the guide rods are slidably penetrated through the inside of the fixed ring.

[0008] Preferably, a plurality of slide grooves are formed in the inside of the pressing rod at one end, and the pressing blocks are elastically and slidably connected in the slide grooves by springs.

[0009] Preferably, the outer wall of the extractor is slidably connected with a sliding frame, and an electric push rod is mounted around the outer wall of the extractor, the output end of the electric push rod is connected with the sliding frame, and a plurality of support frames are mounted around the sliding frame.

[0010] Preferably, the bottom end of the support frame is provided with a nail plate.

[0011] Preferably, the support frame is made of stainless steel.

[0012] Preferably, the inside of the pressing ring is provided with a rubber layer.

[0013] The piston extractor for the loader has the advantages that:

[0014] The piston extractor for the loader has the advantages that:

[0015] The piston extractor for the loader has the advantages that: BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is a perspective view of the utility model

[0019] Figure 3 is a perspective view of the utility model

[0020] Figure 4 is a perspective view of the utility model Figure 2 of A place partial close-up view;

[0021] Figure 5 is a perspective view of the utility model

[0022] Legend:

[0023] 1, puller; 2, piston; 3, puller assembly; 4, nut; 5, first screw rod; 6, fixed ring; 7, support frame; 8, sliding sleeve; 9, through hole; 10, first connecting frame; 11, second connecting frame; 12, rotating shaft; 13, worm wheel; 14, worm; 15, pressure holding rod; 16, pressure ring; 17, second screw rod; 18, guide rod; 19, sliding slot; 20, spring; 21, pressure holding block; 22, sliding frame; 23, electric push rod; 24, nail plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] The specific embodiments are given below.

[0026] Please refer to Figures 1-5The utility model provides a piston extractor for loader, including the extractor 1, the inside of piston 2 is arranged in the top of extractor 1, and one side of extractor 1 is equipped with the extraction assembly 3, the first screw rod 5 is equipped in the inside and is penetrated of extractor 1, and one end of first screw rod 5 is penetrated to the inside of piston 2, the nut 4 is equipped in one end of first screw rod 5, the outer wall of extractor 1 is equipped with a plurality of support frames 7, and the sliding sleeve 8 is arranged on the support frame 7, a plurality of through -holes 9 are formed in the support frame 7, and the through -hole 9 is also formed in the inside of sliding sleeve 8, the first connecting frame 10 is installed in one end of sliding sleeve 8, and the second connecting frame 11 is hinged to one end of first connecting frame 10 through the pivot 12, the worm wheel 13 is equipped in one end of pivot 12, and the worm 14 is engaged in one side of worm wheel 13, the worm 14 is installed on the first connecting frame 10, and the pressure holding rod 15 is equipped in one end of second connecting frame 11.

[0027] When working, the extraction assembly 3 is a common component in the field of piston extractor, such as a jack, etc., the bottom end of the plurality of support frames 7 is in contact with the ground, forming a stable support base, so as to support the whole component of the extractor 1, reduce the sliding when the piston is pulled out by directly installing the extractor 1 on the cylinder liner assembly, improve the pulling stability, and the worm 14 is rotated, and the worm wheel 13 is driven to rotate, and the second connecting frame 11 is driven to rotate through the pivot 12, so as to adjust the angle of the pressure holding rod 15, and the cylinder liner assembly can be pressed through the pressure holding rod 15, so as to reduce the shaking of the cylinder liner assembly in the pulling process, further improve the pulling stability and enhance the pulling effect, and the screw is arranged in the through -hole 9, the screw is separated from the through -hole 9, the position of the sliding sleeve 8 on the support frame 7 can be adjusted, so as to flexibly adjust the position of the pressure holding rod 15 according to the height of the cylinder liner assembly, further improve the applicability of the device, and after adjustment, the two through -holes are opposite, and the screw is fixed.

[0028] Please refer to Figures 1-5 The second screw rod 17 is threaded and penetrates the inside of the fixed ring 6 at both ends, and the pressure ring 16 is rotatably connected to one end of the second screw rod 17, the guide rod 18 is fixedly connected to both ends of the pressure ring 16, and the other end of the guide rod 18 slidably penetrates the inside of the fixed ring 6, when working, the second screw rod 17 is rotated forward and backward, and under the guidance of the guide rod 18, the second screw rod 17 pushes the pressure ring 16 to move linearly in the inside of the fixed ring 6, so as to adjust the two pressure rings 16 to move closer to each other or away from each other, so as to flexibly adjust according to different sizes of the piston, so as to improve the applicability of the device.

[0029] Please refer to Figures 1-5The pressing rod 15 is internally provided with a plurality of sliding grooves 19 at one end, and the pressing block 21 is elastically and slidably connected in the sliding grooves 19 through the spring 20.

[0030] Please refer to Figures 1-5 The outer wall of the extractor 1 is slidably connected with the sliding frame 22, and the outer wall of the extractor 1 is surrounded by the electric push rod 23. The output end of the electric push rod 23 is connected with the sliding frame 22, and a plurality of support frames 7 are surrounded by the sliding frame 22. When working, the sliding frame 22 is moved by the output end of the electric push rod 23, so that the distance between the extractor 1 and the ground is changed, and the distance between the fixing ring 6 and the piston to be removed is quickly adjusted.

[0031] Please refer to Figures 1-5 The bottom end of the support frame 7 is provided with the nail plate 24. When working, the friction between the bottom of the support frame 7 and the ground is improved by the nail plate 24, so that the stability of the device is further improved.

[0032] Please refer to Figures 1-5 The support frame 7 is made of stainless steel. When working, the selection of the stainless steel material of the support frame 7 can enhance the structural strength and durability, and further improve the stability of the device.

[0033] Please refer to Figures 1-5 The inner side of the pressing ring 16 is provided with a rubber layer. When working, the friction between the inner side of the pressing ring 16 and the surface of the piston to be removed is improved by the rubber layer, so that the clamping stability is further improved, and the flexible material is selected, so that the damage to the surface of the piston during clamping is further reduced.

[0034] Working principle: the pulling assembly 3 is a common component in the field of piston pulling device, such as jack, etc., through the bottom end of multiple support frames 7 contact with the ground, form a stable support base, to play the effect of supporting the whole component of the pulling device 1, reduce the sliding when directly installing the pulling device 1 on the cylinder liner assembly, improve the pulling stability, at the same time, through the rotating worm 14, and then meshing drive the worm wheel 13 rotates, and then through the rotating shaft 12 drive the second connecting frame 11 rotates, to adjust the angle of the pressing rod 15, and through the pressing rod 15 can press the cylinder liner assembly, reduce the shaking of the cylinder liner assembly in the pulling process, further improve the pulling stability, and enhance the pulling effect, at the same time, the through hole 9 is provided with a screw, by separating the screw from the through hole 9, the sliding sleeve 8 can be adjusted on the support frame 7, in order to adjust the position of the pressing rod 15 according to the height of the cylinder liner assembly, further improve the applicability of the device, after adjusting, make two groups of through holes relative, and fixed by screw, through the forward and reverse rotation of the second screw 17, and under the guidance of the guide rod 18, make the second screw 17 push the pressing ring 16 move linearly in the fixed ring 6, to adjust the two groups of pressing ring 16 to move close to each other or away from each other, in order to adjust according to the size of different piston, to improve the applicability of the device, a plurality of pressing blocks 21 can be elastically stretched in the sliding groove 19 through the spring 20, to adapt to the surface shape of the cylinder liner assembly, improve the stability during pressing, and through the spring 20, can play a certain buffering effect, through the output end of the electric push rod 23 to drive the sliding frame 22 to move, can change the distance between the pulling device 1 and the ground, and then adjust the distance between the fixed ring 6 and the piston to be pulled out, through the nail plate 24, can improve the friction between the bottom of the support frame 7 and the ground, and further improve the stability of the device, the selection of stainless steel material of the support frame 7 can enhance the structural strength and durability, and further improve the stability of the device, the rubber layer can improve the friction between the inner side of the pressing ring 16 and the surface of the piston to be pulled out, and further improve the clamping stability, and the flexible material can further reduce the damage to the surface of the piston during clamping.

[0035] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A loader piston puller, comprising a puller (1), a piston (2) is slidably arranged inside the top end of the puller (1), a puller assembly (3) is arranged on one side of the puller (1), a first screw rod (5) is arranged inside and through the puller (1), and one end of the first screw rod (5) penetrates into the inside of the piston (2), and a nut (4) is threadedly arranged on one end of the first screw rod (5), characterized in that: The outer wall of the extractor (1) is provided with a plurality of support frames (7), and the support frame (7) is provided with a sliding sleeve (8). A plurality of through holes (9) are formed in the support frame (7), and the sliding sleeve (8) is also provided with a through hole (9). A first connecting frame (10) is mounted at one end of the sliding sleeve (8), and a second connecting frame (11) is hingedly connected to one end of the first connecting frame (10) through a rotating shaft (12). A worm gear (13) is arranged at one end of the rotating shaft (12), and a worm (14) is engaged with one side of the worm gear (13). The worm (14) is mounted on the first connecting frame (10). One end of the second connecting frame (11) is provided with a pressing rod (15).

2. A piston puller for a loader as set forth in claim 1, the improvement wherein: The second screw rod (17) is screwed into the fixed ring (6) at both ends, and the second screw rod (17) is rotatably connected with the pressing ring (16) at one end. The pressing ring (16) is fixedly connected with the guide rod (18) at both ends, and the guide rod (18) is slidably penetrated into the fixed ring (6) at the other end.

3. A piston puller for a loader as set forth in claim 1, the improvement wherein: A plurality of sliding grooves (19) are formed in the inner end of the pressing rod (15), and the pressing block (21) is elastically connected in the sliding groove (19) by the spring (20).

4. A loader piston puller as claimed in claim 1 wherein: The outer wall of the extractor (1) is provided with a sliding frame (22), and the outer wall of the extractor (1) is provided with an electric push rod (23). The output end of the electric push rod (23) is connected with the sliding frame (22), and a plurality of support frames (7) are arranged around the sliding frame (22).

5. A loader piston puller as claimed in claim 1 wherein: The bottom end of the support frame (7) is provided with a nail plate (24).

6. A loader piston puller as claimed in claim 4 wherein: The support frame (7) is made of stainless steel.

7. A loader piston puller as claimed in claim 2 wherein: The inner side of the pressing ring (16) is provided with a rubber layer.

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