Pin replacing machine

Abstract

The utility model relates to the technical field of pin replacing machines, and discloses a pin replacing machine which comprises a pin replacing device shell and a rotating shaft which are arranged on a pin replacing table, the rotating shaft is rotationally connected to an inner cavity of the pin replacing device shell through a one-way bearing, and a guide rod is fixedly connected to the upper end of the inner cavity of the pin replacing device shell. The outer side wall of the guide rod is slidably connected with a sliding block, one end of the sliding block is fixedly connected with a pin lifting rod, the other end of the sliding block is fixedly connected with a toothed plate, and a force storage spring is fixedly connected between the side wall of the sliding block and the inner side wall of the pin changer shell. One end of the outer side wall of the rotating shaft is fixedly connected with a second incomplete gear, the second incomplete gear is used in cooperation with a toothed plate, the other end of the outer side wall of the rotating shaft is fixedly connected with a rotating disc, a pawl is rotationally arranged at the eccentric position of the side wall of the rotating disc, and the side wall of the rotating shaft is rotationally connected with a ratchet wheel. According to the scheme, the maintenance cost is low, and the service life of the pin replacing machine is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pin changer, concretely is a kind of pin changer. BACKGROUND

[0002] In the process of mechanical maintenance, sometimes shaft pin needs to be disassembled, and currently pin changer is mostly used to disassemble shaft pin, and pin changer is also called pin disassembling machine, which is a mechanical equipment specially used for disassembling and replacing various pin shafts or connecting pieces, mainly extruding and replacing shaft pin through hydraulic mode, and when pin needs to be carried and replaced, portable pin changer on pin changing table is usually used.

[0003] According to the utility model patent with patent application publication number 202320888763.9, a kind of quick portable track pin changer, including pin changer shell, fixed handle, force increasing mechanism one, top pin rod. Force increasing mechanism one is arranged in the cavity of pin changer shell. Force increasing mechanism one includes main gear, rack, movable handle, and main gear is rotatably arranged in the cavity by mounting shaft one. Rack is directly engaged with main gear, and can be moved to the front end or rear end of pin changer shell in the cavity, one end of movable handle is connected with main gear, and the other end extends from the bottom of pin changer shell, without additional power or hydraulic action, high convenience, wide use scene, only by holding movable handle and fixed handle, and manually changing the distance between movable handle and fixed handle, force increasing mechanism one designed based on gear and rack transmission engagement will be increased to the driving force of rack movement by smaller lever force, to provide reliable push action for top pin rod, to facilitate the top pin of track chain to be pushed out.

[0004] According to the above patent, there is a kind of pin changer, and in actual use, there are still some shortcomings, and the more obvious one is that the movement of top pin rod needs to add hydraulic oil into piston cylinder, and hydraulic oil needs to be replaced regularly, so the maintenance cost is higher, and hydraulic oil is easily affected by temperature, humidity, dust and other environmental factors, for example, in high temperature environment, the viscosity of hydraulic oil will decrease, which affects the transmission efficiency of system, and reduces the service life of pin changer, therefore, we propose a kind of pin changer. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of pin changer to solve the problems raised in the above background.

[0006] In order to achieve the above invention purpose, the utility model provides the following technical solutions:

[0007] The application is the following: a pin changing machine, comprising a pin changer shell arranged on a pin changing table and a rotating shaft, the rotating shaft is rotatably connected in the inner cavity of the pin changer shell through a one-way bearing, the inner cavity upper end of the pin changer shell is fixedly connected with a guide rod, the outer side wall of the guide rod is slidably connected with a sliding block, one end of the sliding block is fixedly connected with a top pin rod, the other end of the sliding block is fixedly connected with a toothed plate, the side wall of the sliding block and the inner side wall of the pin changer shell are fixedly connected with a force storage spring.

[0008] One end of the outer side wall of the rotating shaft is fixedly connected with a second incomplete gear, the second incomplete gear is used in cooperation with the toothed plate, the other end of the outer side wall of the rotating shaft is fixedly connected with a rotating disc, the side wall eccentric part of the rotating disc is rotatably provided with a pawl, the side wall of the rotating shaft is rotatably connected with a ratchet wheel, one side of the ratchet wheel is fixedly connected with a rotating gear, the pin changer shell is provided with a rotating part facilitating the rotation of the rotating gear.

[0009] As the preferred technical scheme of the application, the inner side wall of the pin changer shell is provided with a through hole near one side of the top pin rod, and the top pin rod is slidably connected in the inner cavity of the through hole.

[0010] As the preferred technical scheme of the application, the rotating part comprises a first incomplete gear, the first incomplete gear is rotatably connected in the inner cavity of the pin changer shell and is used in cooperation with the rotating gear.

[0011] As the preferred technical scheme of the application, one side of the first incomplete gear is fixedly connected with a movable handle, and the bottom of the pin changer shell is provided with a sliding groove facilitating the rotation of the movable handle.

[0012] As the preferred technical scheme of the application, one end of the bottom of the pin changer shell is fixedly connected with a fixed handle, and a resistance spring is arranged between the fixed handle and the movable handle.

[0013] As the preferred technical scheme of the application, the side wall of the rotating disc is fixedly connected with a fixed spring, one end of the fixed spring is fixedly connected with the pawl, and the pawl is matched with the ratchet wheel.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] In the scheme of the application: by repeatedly rotating the movable handle, the movable handle drives the first incomplete gear to rotate, the first incomplete gear drives the gear and the ratchet wheel to rotate, at this time the gear and the ratchet wheel rotate on the rotating shaft, and since the ratchet wheel is engaged with the pawl, the ratchet wheel can drive the rotating disc and the rotating shaft to rotate through the pawl, the second incomplete gear is driven to rotate through the rotating shaft, the toothed plate is driven to move horizontally through the second incomplete gear, the sliding block and the top pin rod are translated through the toothed plate, the sliding block makes the force storage spring deform, and generates a reverse force on the sliding block, when the second incomplete gear rotates to the toothless position, the toothed plate loses the limit, and the sliding block and the top pin rod are moved through the force storage spring, the top pin rod impacts the latch, and the latch is disassembled, so that the hydraulic oil is avoided to realize the replacement of the pin, the maintenance cost is low, and the service life of the pin replacement machine is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0017] In the drawings:

[0018] Figure 1 It is a perspective view of a pin replacement machine provided in the application;

[0019] Figure 2 It is a partial structure view of a pin replacement machine provided in the application;

[0020] Figure 3 It is a rotating shaft structure view of a pin replacement machine provided in the application;

[0021] Figure 4 It is a pin replacement table structure view of a pin replacement machine provided in the application.

[0022] In the drawings: 100, pin replacement device shell; 110, guide rod; 120, sliding block; 130, top pin rod; 140, toothed plate; 150, force storage spring; 160, first incomplete gear; 161, movable handle; 170, fixed handle; 200, rotating shaft; 210, second incomplete gear; 220, rotating disc; 221, fixed spring; 222, pawl; 230, ratchet wheel; 240, rotating gear; 300, pin replacement table. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments; based on the embodiments in the present application, all the other embodiments obtained by the person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0024] Please refer to Figures 1-4 A pin changing machine, comprising: a pin changer housing 100 arranged on a pin changing table 300 and a rotating shaft 200, the rotating shaft 200 is rotatably connected in the inner cavity of the pin changer housing 100 through a one-way bearing, specifically, the one-way bearing is a bearing which can freely rotate in one direction and is locked in the other direction, the shape of the rolling seat makes it only roll in one direction, and a great resistance is generated in the other direction, as prior art, it will not be described here, the inner cavity upper end of the pin changer housing 100 is fixedly connected with a guide rod 110, the guide rod 110 facilitates the movement of the sliding block 120, the outer side wall of the guide rod 110 is slidingly connected with the sliding block 120, the sliding block 120 is used to drive the ejector rod 130 to move, one end of the sliding block 120 is fixedly connected with the ejector rod 130, the ejector rod 130 is used to impact and disassemble the bolt, the other end of the sliding block 120 is fixedly connected with a toothed plate 140, the toothed plate 140 is used to drive the sliding block 120 to move, the side wall of the sliding block 120 and the inner side wall of the pin changer housing 100 are fixedly connected with a force storage spring 150, the force storage spring 150 is used to push the sliding block 120 to move; one end of the outer side wall of the rotating shaft 200 is fixedly connected with a second incomplete gear 210, the second incomplete gear 210 is used to drive the toothed plate 140 to rotate, the second incomplete gear 210 is used in cooperation with the toothed plate 140, the other end of the outer side wall of the rotating shaft 200 is fixedly connected with a rotating disc 220, the rotating disc 220 is used to drive the rotating shaft 200 to rotate, the eccentricity of the side wall of the rotating disc 220 is rotatably provided with a pawl 222, the side wall of the rotating shaft 200 is rotatably connected with a ratchet wheel 230, the ratchet wheel 230 drives the rotating disc 220 to rotate through the pawl 222, one side of the ratchet wheel 230 is fixedly connected with a rotating gear 240, the rotating gear 240 is used to drive the ratchet wheel 230 to rotate, the pin changer housing 100 is provided with a rotating piece facilitating the rotation of the rotating gear 240.

[0025] Please refer to Figure 2 The inner side wall of the pin changer housing 100 is provided with a through hole near one side of the ejector rod 130, the ejector rod 130 is slidingly connected in the inner cavity of the through hole, and the ejector rod 130 is used to impact and disassemble the bolt.

[0026] Please refer to Figure 2 And Figure 3The rotating member comprises a first incomplete gear 160, which is rotationally connected in the inner cavity of the switcher shell 100 and cooperates with the rotating gear 240 to rotate the rotating gear 240 through the first incomplete gear 160.

[0027] Please refer to Figure 2 and Figure 3 One side of the first incomplete gear 160 is fixedly connected with a movable handle 161, and the bottom of the switcher shell 100 is provided with a sliding groove for facilitating the rotation of the movable handle 161. Through repeated movement of the movable handle 161, the movable handle 161 drives the first incomplete gear 160 to rotate, and the first incomplete gear 160 drives the rotating gear 240 to rotate.

[0028] Please refer to Figure 2 One end of the bottom of the switcher shell 100 is fixedly connected with a fixed handle 170, and a resistance spring is arranged between the fixed handle 170 and the movable handle 161. The fixed handle 170 is elastically forced by the resistance spring.

[0029] Please refer to Figure 2 and Figure 3 The side wall of the rotating disc 220 is fixedly connected with a fixed spring 221, one end of the fixed spring 221 is fixedly connected with the pawl 222, the pawl 222 is matched with the ratchet wheel 230, and the pawl 222 is reset by the fixed spring 221.

[0030] Specifically, in use, the movable handle 161 is repeatedly moved to drive the first incomplete gear 160 to rotate, and the first incomplete gear 160 drives the rotating gear 240 and the ratchet wheel 230 to rotate. When the ratchet wheel 230 rotates forward, it is engaged with the pawl 222, and the rotating disc 220 and the rotating shaft 200 are rotated by the pawl 222. When the ratchet wheel 230 reversely rotates, it can rotate alone on the rotating shaft 200, so that the repeated movement of the movable handle 161 can drive the rotating shaft 200 to rotate in one direction. The rotating shaft 200 drives the second incomplete gear 210 to rotate, the second incomplete gear 210 drives the toothed plate 140 and the sliding block 120 to translate, and the sliding block 120 drives the top pin rod 130 to translate. At this time, the force storage spring 150 is deformed, and an opposite elastic force is applied to the sliding block 120. When the second incomplete gear 210 rotates to the toothless position, the toothed plate 140 loses the limit, and the sliding block 120 and the top pin rod 130 are reversely moved by the force storage spring 150. The top pin rod 130 hits the plug, and the use is completed.

[0031] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A pin changer, comprising: The application discloses a pin changer shell (100) and a rotating shaft (200) arranged on a pin changer platform (300), characterized in that the rotating shaft (200) is rotatably connected to the inner cavity of the pin changer shell (100) through a one-way bearing, the upper end of the inner cavity of the pin changer shell (100) is fixedly connected with a guide rod (110), the outer side wall of the guide rod (110) is slidably connected with a sliding block (120), one end of the sliding block (120) is fixedly connected with a top pin rod (130), the other end of the sliding block (120) is fixedly connected with a toothed plate (140), and the side wall of the sliding block (120) and the inner side wall of the pin changer shell (100) are fixedly connected with a force storage spring (150). One end of the outer side wall of the rotating shaft (200) is fixedly connected with a second incomplete gear (210), the second incomplete gear (210) is used in cooperation with the toothed plate (140), the other end of the outer side wall of the rotating shaft (200) is fixedly connected with a rotating disc (220), the side wall of the rotating disc (220) is eccentrically rotatably provided with a ratchet pawl (222), the side wall of the rotating shaft (200) is rotatably connected with a ratchet wheel (230), one side of the ratchet wheel (230) is fixedly connected with a rotating gear (240), and the pin changer shell (100) is provided with a rotating part facilitating rotation of the rotating gear (240).

2. A pin changer according to claim 1, characterized in that: The inner side wall of the pin changer shell (100) is provided with a through hole on the side close to the top pin rod (130), and the top pin rod (130) is slidably connected in the inner cavity of the through hole.

3. A pin changer according to claim 1, characterized in that: The rotating part comprises a first incomplete gear (160), the first incomplete gear (160) is rotatably connected in the inner cavity of the pin changer shell (100) and is used in cooperation with the rotating gear (240).

4. A pin changer according to claim 3, characterized in that: One side of the first incomplete gear (160) is fixedly connected with a movable handle (161), and the bottom of the pin changer shell (100) is provided with a sliding groove facilitating rotation of the movable handle (161).

5. A pin changer according to claim 4, characterized in that: One end of the bottom of the pin changer shell (100) is fixedly connected with a fixed handle (170), and a resistance spring is arranged between the fixed handle (170) and the movable handle (161).

6. A pin changer according to claim 1 wherein: The side wall of the rotating disc (220) is fixedly connected with a fixed spring (221), one end of the fixed spring (221) is fixedly connected with the ratchet pawl (222), and the ratchet pawl (222) is matched with the ratchet wheel (230).

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