Novel hydraulic pin puller

Abstract

The utility model provides a novel hydraulic pin puller, belongs to the technical field of pin pullers, and aims to solve the problem that when a connecting pin is pulled out in the prior art, a worker is difficult to find that the connecting pin is pulled out at the first time, and a hydraulic cylinder continues to work, so that the energy consumption of the pin puller is high. Comprising a pin pulling sleeve, a pin pulling hydraulic cylinder, a connecting supporting frame, a portable handle, a connecting table, a pin pulling mounting mechanism and a pin pulling warning mechanism. The pin pulling hydraulic cylinder is fixedly connected to the rear end of the pin pulling sleeve; the connecting supporting frame is of a T-shaped circular truncated cone structure and fixedly connected to the rear end of the pin pulling hydraulic cylinder. The portable handle is welded to the upper portion of the pin pulling hydraulic cylinder. The connecting table is of an annular structure and welded to the front end of the pin pulling sleeve. The pin pulling mounting mechanism is arranged in front of the pin pulling hydraulic cylinder; and the pin pulling warning mechanism is arranged below the pin pulling sleeve, so that an operator is prompted, the pin pulling hydraulic cylinder is prevented from working all the time, and the energy consumption of the whole pin puller is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pin pullers, and more specifically, particularly relates to a novel hydraulic pin puller. Background Art

[0002] Pinning is the most important step when disassembling a hydraulic support. Especially after the hydraulic support on the working surface has been used for a long time, dust accumulates in the pin holes, and the pin shafts are deformed or rusted, making it more difficult to pull out the pins. In the existing method, a hydraulic pin puller is generally used to pull out the connecting pins of the hydraulic support. When the pin puller is used, it is necessary to first connect the connecting pin with a connecting belt, and then connect the connecting belt with the pin puller. By opening the hydraulic cylinder, the hydraulic cylinder drives the connecting belt to pull out the connecting pin.

[0003] The existing application number is: CN202222258206.7. The utility model discloses a hydraulic support pin puller, including a pin puller frame and a pin puller body. The lower end of the pin puller frame is movably mounted with a connecting seat all around, a roller is movably mounted in the middle of the lower end of the connecting seat, and reinforcement seats are fixedly mounted on both sides of the upper end of the pin puller frame. The upper front end of the pin puller frame is fixedly connected to the pin puller body, a telescopic component is arranged on the right end outer surface of the pin puller body, and a close-fitting seat is fixedly mounted on the front end outer surface of the telescopic component. The pin puller frame is in a "down"-shaped structure, and a rotating disk is arranged on the upper end of the connecting seat, and the rotating disk is located at the upper end position of the roller. Springs are arranged on both sides of the connecting seat, and the number of the reinforcement seats is two groups. Screw grooves are arranged in the middle position of the reinforcement seat and the pin puller frame. The utility model increases the telescopic structure of the hydraulic support pin puller, and can improve the use effect of the pin puller, which is practical.

[0004] Based on the above, when using the existing pin puller to pull out the connecting pin, in order to avoid damaging the connecting pin, it is generally necessary to control the piston rod of the hydraulic cylinder to move slowly, resulting in a relatively slow pin pulling process. When the connecting pin is pulled out, it is difficult for the staff to immediately discover that the connecting pin has been pulled out, and the hydraulic cylinder continues to work, resulting in high energy consumption of the pin puller. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a new hydraulic pin puller to solve the problem that when using the existing pin puller to pull out the connecting pin, in order to avoid damaging the connecting pin, it is generally necessary to control the piston rod of the hydraulic cylinder to move slowly, resulting in a relatively slow pin pulling process. When the connecting pin is pulled out, it is difficult for the staff to find that the connecting pin has been pulled out at the first time, and the hydraulic cylinder continues to work, resulting in high energy consumption of the pin puller.

[0006] The purpose and effect of the new hydraulic pin puller of the utility model are achieved by the following specific technical means:

[0007] A novel hydraulic pin puller, comprising a pin puller sleeve, a pin puller hydraulic cylinder, a connecting support frame, a portable handle, a connecting platform, a pin puller installation mechanism and a pin puller warning mechanism;

[0008] The pin pulling hydraulic cylinder is fixedly connected to the rear end of the pin pulling sleeve;

[0009] The connecting support frame is a T-shaped frustum structure, and the connecting support frame is fixedly connected to the rear end of the pin pulling hydraulic cylinder;

[0010] The portable handle is welded above the pin pulling hydraulic cylinder;

[0011] The connecting platform is a circular ring structure, and the connecting platform is welded to the front end of the pin pulling sleeve;

[0012] The pin pulling installation mechanism is arranged in front of the pin pulling hydraulic cylinder;

[0013] The pin pulling warning mechanism is arranged below the pin pulling sleeve.

[0014] Furthermore, the pin pulling installation mechanism includes: a pin pulling connection belt, a pin pulling connection frame, a pin pulling adjustment member and a pin pulling plug-in unit;

[0015] The pin pulling connecting belt is fixedly connected to the upper front end of the pin pulling sleeve;

[0016] There are two groups of pin pulling connection frames, which are respectively welded to the lower front end of the pin pulling sleeve, and both groups of pin pulling connection frames are provided with a circular hole structure;

[0017] The pin pulling adjustment pieces are provided in multiple groups, each of which is provided with a circular hole structure, and each of which is fixedly connected to the lower end of the pin pulling connection belt;

[0018] The pin-pulling plug-in unit is inserted into the circular hole of the pin-pulling connecting frame.

[0019] Furthermore, the pin pulling installation mechanism also includes: a pin pulling limiter and a pin pulling connection member;

[0020] The pin pulling limiter is an L-shaped structure, the pin pulling limiter is fixedly connected to the front end of the piston rod of the pin pulling hydraulic cylinder, and a slide groove structure is arranged at the front end of the pin pulling limiter;

[0021] The pin pulling connecting piece is slidably connected to the lower end of the sliding groove of the pin pulling limiting piece, and the lower end of the pin pulling connecting piece is provided with an inverted triangle structure.

[0022] Furthermore, the pin pulling and installation mechanism also includes: a pin pulling assembly;

[0023] The pin pulling assembly is a C-shaped structure, and the pin pulling assembly is fixedly connected to the lower end of the pin pulling connector.

[0024] Furthermore, the pin pulling and installation mechanism also includes: a pin pulling and ejecting member;

[0025] The pin pulling and pushing member is a disc-shaped structure with an opening at the bottom, and the pin pulling and pushing member is fixedly connected to the front end of the piston rod of the pin pulling hydraulic cylinder.

[0026] Furthermore, the pin removal warning mechanism includes: a pin removal warning airbag, a warning connection pipe and a warning whistle;

[0027] The pin pulling reminder airbag is fixedly connected to the lower part of the inner front end of the pin pulling sleeve;

[0028] The reminder connection pipe is fixedly connected to the lower rear end of the pin removal reminder airbag, and the reminder connection pipe is communicated with the inside of the pin removal reminder airbag;

[0029] The warning whistle is fixedly connected to the lower part of the pin pulling sleeve, and the air inlet of the warning whistle corresponds to the rear end position of the reminder connecting pipe.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model provides a pin pulling installation mechanism. When the connecting pin of the hydraulic support needs to be pulled out, the pin pulling connecting belt is wound around the outer periphery of the hydraulic support. Then, a suitable pin pulling adjusting piece is aligned with the round hole of the pin pulling connecting frame and a pin pulling plug is inserted therein. The pin pulling plug passes through the round holes of the pin pulling adjusting piece and the pin pulling connecting frame respectively. The pin pulling connecting piece is moved downward so that the pin pulling connecting piece is inserted into the inner side of the connecting pin. The pin pulling hydraulic cylinder is opened. The piston rod of the pin pulling hydraulic cylinder moves backward to drive the pin pulling limiting piece to move backward. The pin pulling limiting piece moves backward to drive the pin pulling connecting piece to move backward. The pin pulling connecting piece moves backward to pull out the connecting pin. When the connecting pin is pulled out, the piston rod of the pin pulling hydraulic cylinder moves forward. The piston rod of the pin pulling hydraulic cylinder moves forward to drive the pin pulling pushing piece to move forward. The pin pulling pushing piece moves forward to push the connecting pin out of the pin pulling sleeve, which facilitates the pin pulling operation. At the same time, when the connecting pin is a straight pin, at this time, by combining the connecting belt with the connecting pin, and then hanging the rear end of the connecting belt to the inside of the pin pulling assembly, it is convenient to fix the entire pin puller, facilitate the pin pulling operation of connecting pins of different models, and increase the application range of the entire pin puller.

[0032] The utility model provides a pin pulling warning mechanism, when the connecting pin is pulled out of the hydraulic support, the front end of the connecting pin falls downward, and the front end of the connecting pin squeezes the pin pulling reminder airbag, after the pin pulling reminder airbag is squeezed, the air inside the pin pulling reminder airbag blows toward the warning whistle through the reminder connecting pipe, and the warning whistle makes a sound at this time, which prompts the operator and reminds the operator to close the pin pulling hydraulic cylinder in time, thus avoiding the pin pulling hydraulic cylinder from working all the time and reducing the energy consumption of the entire pin puller. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0034] Figure 2 It is a schematic diagram of the structure of the pin-pulling connecting belt of the utility model.

[0035] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0036] Figure 4 It is a structural schematic diagram of the pin pulling and installing mechanism of the utility model.

[0037] Figure 5 It is a structural schematic diagram of a pull pin connector of the utility model.

[0038] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0039] 1. Pin pulling sleeve; 101. Pin pulling connecting belt; 102. Pin pulling connecting frame; 103. Pin pulling adjusting piece; 104. Pin pulling plug-in; 105. Pin pulling limiting piece; 106. Pin pulling connecting piece; 107. Pin pulling assembly; 108. Pin pulling ejection piece; 2. Pin pulling hydraulic cylinder; 201. Pin pulling reminder airbag; 202. Reminding connecting pipe; 203. Warning whistle; 3. Connecting support frame; 4. Portable handle; 5. Connecting table. DETAILED DESCRIPTION

[0040] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples. Example 1

[0041] As attached Figure 1 To Attachment Figure 5 As shown:

[0042] The utility model provides a novel hydraulic pin puller, comprising a pin pulling sleeve 1, a pin pulling hydraulic cylinder 2, a connecting support frame 3, a portable handle 4, a connecting platform 5 and a pin pulling installation mechanism;

[0043] The pin pulling hydraulic cylinder 2 is fixedly connected to the rear end of the pin pulling sleeve 1;

[0044] The connecting support frame 3 is a T-shaped frustum structure, and the connecting support frame 3 is fixedly connected to the rear end of the pin pulling hydraulic cylinder 2;

[0045] The portable handle 4 is welded on the top of the pin pulling hydraulic cylinder 2;

[0046] The connecting platform 5 is a circular ring structure, and the connecting platform 5 is welded to the front end of the pin pulling sleeve 1;

[0047] The pin pulling installation mechanism is arranged in front of the pin pulling hydraulic cylinder 2.

[0048] The pin pulling installation mechanism includes: a pin pulling connection belt 101, a pin pulling connection frame 102, a pin pulling adjustment member 103, a pin pulling plug 104, a pin pulling limit member 105, a pin pulling connection member 106, a pin pulling assembly 107 and a pin pulling ejection member 108;

[0049] The pin pulling connecting belt 101 is fixedly connected to the upper front end of the pin pulling sleeve 1;

[0050] There are two sets of pin pulling connection frames 102, which are respectively welded to the lower front end of the pin pulling sleeve 1, and both sets of pin pulling connection frames 102 are provided with a circular hole structure;

[0051] There are multiple groups of pin-pulling adjustment members 103, each of which is provided with a circular hole structure, and each of which is fixedly connected to the lower end of the pin-pulling connecting belt 101;

[0052] The pin-pulling plug-in 104 is inserted into the circular hole of the pin-pulling connecting frame 102;

[0053] The pin pulling limiter 105 is an L-shaped structure, and is fixedly connected to the front end of the piston rod of the pin pulling hydraulic cylinder 2. A slide groove structure is provided at the front end of the pin pulling limiter 105.

[0054] The pin-pulling connecting member 106 is slidably connected to the lower end of the inner slide groove of the pin-pulling limiting member 105, and the lower end of the pin-pulling connecting member 106 is provided with an inverted triangle structure;

[0055] The pin pulling assembly 107 is a C-shaped structure, and the pin pulling assembly 107 is fixedly connected to the lower end of the pin pulling connector 106;

[0056] The pin pulling and ejecting member 108 is a disc-shaped structure with an opening at the bottom. The pin pulling and ejecting member 108 is fixedly connected to the front end of the piston rod of the pin pulling hydraulic cylinder 2 .

[0057] When the connecting pin of the hydraulic support needs to be pulled out during use, the pin pulling connecting belt 101 is wound around the outer circumference of the hydraulic support, and then the appropriate pin pulling adjusting piece 103 is aligned with the round hole of the pin pulling connecting frame 102 and the pin pulling plug 104 is inserted, so that the pin pulling plug 104 passes through the round holes of the pin pulling adjusting piece 103 and the pin pulling connecting frame 102 respectively. At this time, the fixation of the entire pin puller is achieved, and the pin pulling connecting piece 106 is moved downward to be inserted into the inner side of the connecting pin, and the pin pulling hydraulic cylinder 2 is opened. The piston rod of the pin pulling hydraulic cylinder 2 moves backward to drive the pin pulling limit piece 105 to move backward, and the pin pulling limit piece The backward movement of 105 drives the pin pulling connecting piece 106 to move backward, and the pin pulling connecting piece 106 moves backward to pull out the connecting pin. When the connecting pin is pulled out, the piston rod of the pin pulling hydraulic cylinder 2 moves forward, and the piston rod of the pin pulling hydraulic cylinder 2 moves forward to drive the pin pulling pushing piece 108 to move forward. The pin pulling pushing piece 108 moves forward to push the connecting pin out of the pin pulling sleeve 1, which facilitates the pin pulling operation. At the same time, when the connecting pin is a straight pin, the connecting belt is combined with the connecting pin, and the rear end of the connecting belt is hung inside the pin pulling assembly 107, which facilitates the pin pulling operation of the straight pin and increases the application range of the entire pin puller. Example 2

[0058] The utility model provides a novel hydraulic pin puller, based on the first embodiment, as Figures 1 to 4 As shown, it also includes a pin pulling warning mechanism, which is arranged below the pin pulling sleeve 1.

[0059] The pin removal warning mechanism includes: a pin removal warning airbag 201, a warning connection tube 202 and a warning whistle 203;

[0060] The pin pulling reminder airbag 201 is fixedly connected to the lower front end of the inner part of the pin pulling sleeve 1;

[0061] The reminder connection tube 202 is fixedly connected to the lower rear end of the pin removal reminder airbag 201, and the reminder connection tube 202 is communicated with the inside of the pin removal reminder airbag 201;

[0062] The warning whistle 203 is fixedly connected to the lower part of the pin pulling sleeve 1 , and the air inlet of the warning whistle 203 corresponds to the rear end position of the reminder connecting pipe 202 .

[0063] During use, when the connecting pin is pulled out of the hydraulic support, the front end of the connecting pin falls downward, squeezing the pin pulling reminder airbag 201. After the pin pulling reminder airbag 201 is squeezed, the air inside the pin pulling reminder airbag 201 blows toward the warning whistle 203 through the reminder connecting tube 202. At this time, the warning whistle 203 makes a sound, which prompts the operator, reminding the operator to close the pin pulling hydraulic cylinder 2 in time, avoiding the pin pulling hydraulic cylinder 2 from working all the time, and reducing the energy consumption of the entire pin puller.

Claims

1. A novel hydraulic pin puller, comprising a pin pulling sleeve (1), a pin pulling hydraulic cylinder (2), a connecting support frame (3), a portable handle (4), a connecting platform (5), a pin pulling installation mechanism and a pin pulling warning mechanism; the characteristics are: The pin pulling hydraulic cylinder (2) is fixedly connected to the rear end of the pin pulling sleeve (1); the connecting support frame (3) is a T-shaped frustum structure, and the connecting support frame (3) is fixedly connected to the rear end of the pin pulling hydraulic cylinder (2); the portable handle (4) is welded to the top of the pin pulling hydraulic cylinder (2); the connecting platform (5) is a circular ring structure, and the connecting platform (5) is welded to the front end of the pin pulling sleeve (1); the pin pulling installation mechanism is arranged in front of the pin pulling hydraulic cylinder (2); and the pin pulling warning mechanism is arranged below the pin pulling sleeve (1).

2. The novel hydraulic pin puller as claimed in claim 1, characterized in that: The pin pulling installation mechanism comprises: a pin pulling connection belt (101), a pin pulling connection frame (102), a pin pulling adjustment piece (103) and a pin pulling plug-in unit (104); the pin pulling connection belt (101) is fixedly connected to the upper front end of the pin pulling sleeve (1); the pin pulling connection frame (102) is provided with two groups, the two groups of pin pulling connection frames (102) are respectively welded to the lower front end of the pin pulling sleeve (1), and the two groups of pin pulling connection frames (102) are both provided with a circular hole structure; the pin pulling adjustment piece (103) is provided with a plurality of groups, the plurality of groups of pin pulling adjustment pieces (103) are all provided with a circular hole structure, and the plurality of groups of pin pulling adjustment pieces (103) are all fixedly connected to the lower end of the pin pulling connection belt (101); the pin pulling plug-in unit (104) is plugged into the circular hole of the pin pulling connection frame (102).

3. The novel hydraulic pin puller as claimed in claim 1, characterized in that: The pin pulling installation mechanism further comprises: a pin pulling limiter (105) and a pin pulling connection member (106); the pin pulling limiter (105) is an L-shaped structure, the pin pulling limiter (105) is fixedly connected to the front end of the piston rod of the pin pulling hydraulic cylinder (2), and a slide groove structure is arranged at the front end of the pin pulling limiter (105); the pin pulling connection member (106) is slidably connected to the lower end of the slide groove of the pin pulling limiter (105), and an inverted triangle structure is arranged at the lower end of the pin pulling connection member (106).

4. The novel hydraulic pin puller as claimed in claim 3, characterized in that: The pin pulling installation mechanism further comprises: a pin pulling assembly (107); the pin pulling assembly (107) is a C-shaped structure, and the pin pulling assembly (107) is fixedly connected to the lower end of the pin pulling connector (106).

5. The novel hydraulic pin puller as claimed in claim 1, characterized in that: The pin pulling installation mechanism further comprises: a pin pulling and pushing member (108); the pin pulling and pushing member (108) is a disc-shaped structure with an opening at the bottom, and the pin pulling and pushing member (108) is fixedly connected to the front end of the piston rod of the pin pulling hydraulic cylinder (2).

6. The novel hydraulic pin puller as claimed in claim 1, characterized in that: The pin pulling warning mechanism comprises: a pin pulling reminder airbag (201), a reminder connecting tube (202) and a warning whistle (203); the pin pulling reminder airbag (201) is fixedly connected to the lower front end of the inner part of the pin pulling sleeve (1); the reminder connecting tube (202) is fixedly connected to the lower rear end of the pin pulling reminder airbag (201), and the reminder connecting tube (202) is connected to the inner part of the pin pulling reminder airbag (201); the warning whistle (203) is fixedly connected to the lower part of the pin pulling sleeve (1), and the air inlet of the warning whistle (203) corresponds to the rear end position of the reminder connecting tube (202).

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