Working device suitable for caterpillar band assembly

Abstract

The utility model discloses a working device suitable for track assembly, which belongs to the technical field of engineering machinery and comprises a base, a hydraulic system and an electric control system. The hydraulic system and the electric control system are both installed on the base, and a U-shaped groove is formed in the base. The U-shaped groove is matched with the crawler belt, and the interior of the base located on the two sides of the U-shaped groove is of a hollow structure which is used for installing the hydraulic oil cylinder and containing the pin guiding shaft. One end of the U-shaped groove is inserted into the power end of the hydraulic oil cylinder, and the other end is provided with a pin shaft leading-out part; and the pin shaft leading-out part and the power end of the hydraulic oil cylinder are coaxially arranged, and when the crawler belt is assembled, the power end of the hydraulic oil cylinder and the pin shaft leading-out part correspond to crawler belt pin holes by adjusting the position of the device, so that the functions of assembling the crawler belt pin shaft and leading out the pin shaft are achieved. The track pin shaft assembly and ejection and recovery of the guide pin shaft are automatically completed by controlling an electric control system and a hydraulic system, and the track pin shaft assembly and ejection and recovery device is safe, reliable and convenient to operate.

Description

Technical Field

[0001] The utility model relates to a working device suitable for crawler assembly and belongs to the technical field of engineering machinery. Background Art

[0002] Crawler is a very common walking mechanism in the field of engineering machines. Crawler is mainly composed of track plates connected by pins. In order to ensure walking reliability, the track plates and pins are generally connected by interference fit. The number of pins varies depending on the length of the track, which makes it difficult to assemble the track and even causes occupational diseases for workers. Therefore, the applicant has found through research that the methods for assembling track pins generally use copper rod knocking method, jack assembly method and electric hammer assembly method. The existing assembly methods have the following problems:

[0003] 1. Copper rod knocking method: During assembly, workers use copper rods to knock the pin into the pin hole of the track plate. Because the pin and the track pin hole are interference fit, workers have to knock many times to complete the assembly, or even fail to assemble, which is time-consuming and laborious, and even causes occupational diseases among workers.

[0004] 2. Jack assembly method: mainly use the jack to align the pin shaft. The worker operates the jack to push the pin shaft into the pin shaft hole of the track shoe. However, the jack alignment time is long and the fixation cannot be completed, resulting in a long assembly time;

[0005] 3. Electric hammer assembly method: Use the frequency generated by the electric hammer to continuously act on the end face of the pin shaft to push the pin shaft into the pin shaft hole of the track shoe. However, the reaction force generated by the electric hammer is large and cannot be fixed. It also acts on the workers, and the frequency is high, so the electric hammer cannot be held firmly, posing a safety hazard.

[0006] 4. The following problems exist when using a crawler press to assemble the pin:

[0007] 1). When assembling the pin, the distance between one end of the pin and one end of the track pin hole is difficult to ensure. It is necessary to measure the size multiple times to ensure the required size. Even if the sensor is used to automatically control the distance size, the electronic control system of the press is complex and the cost is high.

[0008] 2). The other end of the press leads the guide pin shaft out of the hollow shaft, but the hollow shaft is relatively long. When in use, if a larger pressure is required to press the pin shaft in, the hollow shaft is prone to bending and deformation, causing the hollow shaft to be non-concentric with the track hole and fail.

[0009] 3). The dimensions of the press cylinder end face and the hollow shaft end face are larger than the track width, which makes the press longer, heavier, and inconvenient to use. Utility Model Content

[0010] The purpose of the utility model is to provide a working device suitable for crawler assembly, which can solve the problems in the background technology.

[0011] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions.

[0012] A working device suitable for crawler track assembly, comprising:

[0013] A base, wherein a U-shaped groove is provided on the base;

[0014] A hydraulic system, the hydraulic system comprising a pump station installed on a base, a hydraulic cylinder installed in the base, and hydraulic oil pipes respectively connecting the hydraulic cylinder and the pump station;

[0015] An electric control system, the electric control system comprising an electric control box mounted on a base, a receiver mounted in the electric control box, and electrical components connected to the hydraulic system and the receiver respectively;

[0016] The U-shaped groove is adapted to the crawler track, and the interior of the base located on both sides of the U-shaped groove is a hollow structure, which is used to install the hydraulic cylinder and accommodate the guide pin shaft respectively;

[0017] One end of the U-shaped groove is plugged into the power end of the hydraulic cylinder, and the other end is provided with a guide pin shaft lead-out component;

[0018] The guide pin shaft lead-out component is coaxially arranged with the hydraulic cylinder power end, and is used to make the hydraulic cylinder power end and the guide pin shaft lead-out component correspond to the track pin hole by adjusting the position of the device when assembling the track, so as to achieve the assembly of the track pin shaft and the lead pin shaft lead-out function.

[0019] Optionally, the guide pin shaft lead-out component includes a sleeve assembly installed on the U-shaped groove and a top pipe connector arranged on the sleeve assembly.

[0020] Optionally, the bushing assembly includes a flange fixedly mounted on the U-shaped groove and an output bushing fixedly connected to the flange; wherein the inner diameter of the output bushing is connected to the hollow structure of the base.

[0021] Optionally, the jacking pipe connector includes a lead-out shaft that is clearance-matched with the lead-out shaft sleeve, and a positioning pin connected to the lead-out shaft.

[0022] Optionally, the inner diameter of the lead-out shaft sleeve is larger than the diameter of the lead-out shaft, and is used for clearance fit with the lead-out shaft;

[0023] A positioning groove is provided on the outer wall of the lead-out sleeve, and the positioning groove is L-shaped;

[0024] The shorter section of the positioning groove is connected to the end of the lead-out sleeve to form a channel for the positioning pin to enter;

[0025] The longer section of the positioning groove is radially arranged on the lead-out shaft sleeve to form a stopper for the positioning pin and limit the axial movement of the positioning pin.

[0026] Optionally, the inner diameter of the lead-out shaft is larger than the diameter of the lead pin shaft, and is used to guide the lead pin shaft to the end of the lead-out shaft sleeve, and to guide it to the hollow structure inside the base through the lead-out shaft sleeve.

[0027] Optionally, both ends of the base are provided with through openings, and the through opening close to the guide pin shaft lead-out component is larger than the length of the guide pin shaft, so as to facilitate the removal of the guide pin shaft.

[0028] Optionally, the power end of the hydraulic cylinder passes through the base into the U-shaped groove, and a cylinder sleeve is inserted into the end of the power end of the hydraulic cylinder, thereby driving the cylinder sleeve to move in the U-shaped groove and abutting against the end of the track pin shaft hole; wherein, a circular groove is provided at the end of the cylinder sleeve facing the guide pin shaft lead-out component for accommodating the track pin shaft, and then the track pin shaft contacts the guide pin shaft when the cylinder sleeve moves to the track pin shaft hole, so that the guide pin shaft is guided from the other end of the track pin shaft hole to the top pipe connector.

[0029] Optionally, a plurality of reinforcing ribs and lifting ears are installed on the base to increase the strength of the base and to adjust the position with the help of lifting equipment.

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

[0031] 1. The device can perform precise power control through the hydraulic system, so that after the device and the track pin shaft hole are installed in place, the track pin shaft is placed on the power end of the hydraulic cylinder. When the hydraulic cylinder outputs, the track pin shaft is driven to move toward the track pin shaft hole, and the guide pin shaft temporarily placed in the track pin shaft hole is ejected to the guide pin shaft lead-out component until it is accommodated in the base, and finally the assembly of the track pin shaft and the ejection and recovery of the guide pin shaft are automatically completed.

[0032] 2. This device integrates the hydraulic system and the electrical system into one, avoiding the inconvenience in use and low power control accuracy caused by the hydraulic pump station being placed on the ground, which causes the hydraulic cylinder power output or retraction time to be too long.

[0033] 3. The base structure of this device is simple, high in strength, small in space, easy to carry, assemble and hoist. It can quickly replace different direct cylinder sleeves according to different crawlers, so that it can be suitable for the aperture requirements of different crawler pins and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the installation of the working device of the utility model suitable for crawler assembly;

[0035] Figure 2It is a schematic diagram of the installation of the pin shaft and the guide pin shaft of the working device suitable for crawler assembly of the utility model;

[0036] Figure 3 It is a structural schematic diagram of the base of the utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the guide pin shaft lead-out component of the utility model;

[0038] Figure 5 It is a structural schematic diagram of the jacking pipe connector of the utility model;

[0039] Figure 6 This is a structural schematic diagram of the shaft sleeve assembly of the utility model;

[0040] Figure 7 It is a structural schematic diagram of the U-shaped groove of the base of the utility model.

[0041] In the figure: 1-base; 2-pump station; 3-electric control box; 4-hydraulic oil pipe; 5-track; 6-track pin; 7-guide pin shaft; 101-U-shaped groove; 1011-reinforcement rib; 102-hydraulic cylinder; 103-first bolt; 104-first washer; 105-cylinder sleeve; 106-jacking pipe connector; 107-sleeve assembly; 108-lifting ear; 109-second bolt; 110-second washer; 1061-lead shaft; 1062-locating pin; 1071-flange; 1072-lead sleeve. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0043] In the prior art, crawlers are mainly composed of multiple track plates connected by pins. To ensure walking reliability, the track plates and pins are generally connected by interference fit, and the number of track pins varies according to the length of the crawler. Therefore, when assembling the crawler, the existing copper rods, jacks or electric hammers are used, which is laborious and even causes occupational diseases for workers. Even if a crawler press is used to assemble the pins, the distance between one end of the pin and one end of the track pin hole is difficult to control, the hollow shaft has a large deflection and is easy to bend, resulting in failure, and the press is large in size and heavy in weight. There is still room for improvement in the crawler assembly of the prior art. Example

[0044] This embodiment provides a working device for the track pin 6, combined with Figures 1 to 7The working device is further described, including: a base 1, a hydraulic system and an electric control system. The hydraulic system and the electric control system are both installed on the base 1, and the hydraulic system includes: a pump station 2, a hydraulic cylinder 102 and a hydraulic oil pipe 4; the pump station 2 is installed on the base 1, the hydraulic cylinder 102 is installed in the base 1 through a first bolt 103 and a first washer 104, and the hydraulic oil pipe 4 connects the hydraulic cylinder 102 and the pump station 2 respectively; the electric control system includes: an electric control box 3, a receiver and other electrical components; the electric control box 3 is installed on the base 1, the receiver is installed in the electric control box 3, and other electrical components are connected to the hydraulic system and the receiver respectively.

[0045] A U-shaped groove 101 is provided on the base 1; the U-shaped groove 101 is adapted to the crawler 5, and the interior of the base 1 located on both sides of the U-shaped groove 101 is a hollow structure, which is respectively used to install the hydraulic cylinder 102 and accommodate the guide pin shaft 7; one end of the U-shaped groove 101 is plugged into the power end of the hydraulic cylinder 102, and the other end is provided with a guide pin shaft 7 lead-out component; the guide pin shaft 7 lead-out component is coaxially arranged with the power end of the hydraulic cylinder 102. When the crawler 5 is assembled, by adjusting the position of the device, the power end of the hydraulic cylinder 102 and the guide pin shaft 7 lead-out component are made to correspond to the pin hole of the crawler 5, so as to achieve the assembly of the crawler pin shaft 6 and the lead pin shaft 7 lead-out function.

[0046] Preferably, the guide pin shaft 7 lead-out component includes: a sleeve assembly 107 and a top pipe connector 106, wherein the sleeve assembly 107 is installed on the U-shaped groove 101, and the top pipe connector 106 is installed on the sleeve assembly 107, and the sleeve assembly 107 is fixed on the surface of the U-shaped groove 101, and the top pipe connector 106 is connected to the sleeve assembly 107 to form a channel toward the inside of the base 1.

[0047] Preferably, the sleeve assembly 107 includes: a flange 1071 and a lead-out sleeve 1072; the top pipe connector 106 includes: a lead-out shaft 1061 and a positioning pin 1062; the flange 1071 is fixedly mounted on the U-shaped groove 101 by a second bolt 109 and a second washer 110, the lead-out sleeve 1072 is fixedly connected to the flange 1071, the flange 1071 and the lead-out sleeve 1072 are formed into a whole by welding, and the inner diameter of the lead-out sleeve 1072 is connected to the hollow structure of the base 1.

[0048] The inner diameter of the lead-out shaft sleeve 1072 is larger than the diameter of the lead-out shaft 1061, so that the lead-out shaft 1061 is loosely fitted inside the lead-out shaft sleeve 1072, and the positioning pin 1062 is connected to the lead-out shaft 1061;

[0049] Preferably, a positioning groove is provided on the outer wall of the lead-out sleeve 1072, and the positioning groove is L-shaped; wherein, a shorter section of the L-shape is connected to the end of the lead-out sleeve 1072 to form a channel for the positioning pin 1062 to enter; a longer section of the L-shape is radially arranged on the lead-out sleeve 1072 to form a stopper for the positioning pin 1062 to limit the axial movement of the positioning pin 1062.

[0050] Preferably, the inner diameter of the lead-out shaft 1061 is larger than the diameter of the lead pin shaft 7. When the device applies hydraulic pressure to the lead pin shaft 7, the lead pin shaft 7 can be guided to the end of the lead-out shaft sleeve 1072, and guided to the hollow structure inside the base 1 through the lead-out shaft sleeve 1072, thereby realizing automatic recovery of the lead pin shaft 7. In addition, the volume of the hollow structure close to the lead-out shaft sleeve 1072 is relatively large, and is designed to accommodate a certain number of lead pin shafts 7.

[0051] Preferably, both ends of the base 1 are provided with through openings, and the through opening close to the lead pin shaft 7 lead-out component is larger than the length of the lead pin shaft 7, so as to facilitate the taking of the lead pin shaft 7.

[0052] Preferably, the power end of the hydraulic cylinder 102 is plugged with a cylinder sleeve 105, and the power end of the hydraulic cylinder 102 passes through the base 1 to the U-shaped groove 101, thereby driving the cylinder sleeve 105 to move in the U-shaped groove 101 and abut against the end of the track pin shaft hole; wherein, the end of the cylinder sleeve 105 toward the guide pin shaft 7 outlet component is provided with a circular groove for accommodating the track pin shaft 6, and then the track pin shaft 6 contacts the guide pin shaft 7 when the cylinder sleeve 105 moves to the track pin shaft hole, so that the guide pin shaft 7 is guided from the other end of the track pin shaft hole to the top pipe connector 106, and finally the track pin shaft 6 is assembled and the guide pin shaft 7 is recovered at the same time.

[0053] Preferably, a plurality of reinforcing ribs 1011 and lifting ears 108 are installed on the base 1 to increase the strength of the base 1 and to adjust the position with the help of lifting equipment.

[0054] Preferably, the receiver is provided with a wireless communication module for communicating with the remote control. During operation, the installation process can be operated by the remote control handle according to the working state, thereby improving the safety of the installation of the track pin shaft 6. Example

[0055] The present embodiment provides a working device for the track pin shaft 6, including: a base 1, a hydraulic system and an electronic control system. In the present embodiment, the connection between the lead-out sleeve 1072 and the base 1 is designed to be a bolted connection. If the lead-out sleeve 1072 is damaged during use, it is easy to replace, so that the top pipe connector 106 and the sleeve assembly 107 form a stable connection structure while being convenient and easy to disassemble.

[0056] The inner diameter of the cylinder sleeve 105 is threaded, and the depth of the circular groove is 2 mm. The groove depth design of the circular groove provides standardized requirements for the installation of the track pin 6, effectively realizing the one-time installation of the track pin 6 and saving adjustment procedures.

[0057] In order to meet the installation requirements of different pin shaft diameters, it is only necessary to design the cylinder sleeve 105 into different types. By replacing the cylinder sleeve 105, the installation of different pin shafts and crawler tracks 5 can be met.

[0058] Furthermore, the guide pin shaft 7 is installed into the pin shaft hole of the crawler track 5 and placed on the ground. By driving, the lifting ear 108 is lifted to move the entire device to the position of the crawler track 5. At this time, the crawler pin shaft 6 is adjusted to be coaxial with the cylinder sleeve 105 and the guide pin shaft 7 decoupling component, and finally the installation of the crawler pin shaft 6 and the decoupling of the guide pin shaft 7 are realized.

[0059] In addition, since the pin shaft and the crawler track 5 are tightly matched, the working pressure of the hydraulic cylinder 102 is relatively large. Therefore, the cylinder sleeve 105, the top pipe connector 106 and the sleeve assembly 107 in this example are all subjected to tempering and carburizing treatment to enhance their rigidity and hardness.

[0060] Working principle:

[0061] Install the guide pin shaft 7 into the pin shaft hole of the crawler 5 and place it on the ground. Use a crane to lift the lifting lug 108 to move the device as a whole to the crawler 5 position. At this time, adjust the crawler pin shaft 6, the cylinder sleeve 105, the crawler pin shaft hole, the jacking pipe connector 106 and the sleeve assembly 107 to be coaxially corresponding, and the jacking pipe connector 106 abuts or contacts the end surface of the crawler pin shaft hole;

[0062] Install the lead-out shaft 1061 of the top pipe connector 106 into the lead-out shaft sleeve 1072, and rotate the lead-out shaft 1061 at the same time, so that the positioning pin 1062 on the lead-out shaft 1061 enters the positioning groove of the lead-out shaft sleeve 1072, to ensure that the top pipe connector 106 does not jump axially;

[0063] After the track pin 6 is installed into the cylinder sleeve 105, the remote control handle is operated to start the electronic control system. The electrical components in the electronic control system control the hydraulic system to start, so that the hydraulic cylinder 102 extends; after the hydraulic cylinder 102 extends, it drives the track pin 6 to move toward the pin hole, thereby pressing the track pin 6 into the track pin hole until the cylinder sleeve 105 supports the track pin hole surface, completing the assembly of the track pin 6. At the same time, under the extrusion of the track pin 6, the guide pin 7 enters the jacking pipe connector 106 from the other end of the pin hole, and slides into the hollow structure inside the base 1 through the jacking pipe connector 106 and the sleeve assembly 107 to recover the guide pin 7.

[0064] In addition, in order to avoid the opening size of the U-shaped groove 101 being too large, the top pipe connector 106 is designed to be assembled. During the assembly process of the track 5, the top pipe connector 106 is first taken out, and when the track 5 enters the U-shaped groove 101, the top pipe connector 106 is installed into the shaft sleeve assembly 107 to ensure the designed rigidity of the base 1 and control the overall weight of the base 1.

[0065] In summary, the utility model uses a hydraulic system to perform precise power control, so that after the device and the track pin hole are installed in place, the track pin 6 is placed at the power end of the hydraulic cylinder 102, and the hydraulic cylinder 102 drives the track pin 6 to move toward the track pin hole when outputting, and pushes the guide pin 7 temporarily placed in the track pin hole toward the guide pin 7 output component until it is accommodated in the base 1, and finally automatically completes the assembly of the track pin 6 and the ejection and recovery of the guide pin 7. Secondly, the hydraulic system and the electrical system are integrated into one, so as to avoid the inconvenience caused by the hydraulic pump station 2 being placed on the ground, which causes the hydraulic cylinder 102 to output or retract too long, resulting in inconvenience during use and low power control accuracy. And the pin assembly is completed by using the pressure generated by the hydraulic cylinder 102 to solve the problem of long working time and fatigue of manual use of copper rods by hammering method; the working system is easy to align and has high working efficiency, which solves the problem of the jack being unable to be fixed and the low working efficiency, and also solves the problem of high frequency of using electric hammers, which cannot be fixed and causes harm to the human body. Finally, the base 1 of the device has a simple structure, high strength, small footprint, and is easy to carry, assemble and hoist. It can quickly replace different direct cylinder sleeves 105 according to different crawlers 5 to make it suitable for the aperture requirements of different crawler pins 6 and has a wide range of applications.

[0066] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A working device suitable for crawler assembly, characterized in that: include: A base, wherein a U-shaped groove is provided on the base; A hydraulic system, the hydraulic system comprising a pump station installed on a base, a hydraulic cylinder installed in the base, and hydraulic oil pipes respectively connecting the hydraulic cylinder and the pump station; An electric control system, the electric control system comprising an electric control box mounted on a base, a receiver mounted in the electric control box, and electrical components connected to the hydraulic system and the receiver respectively; The U-shaped groove is adapted to the crawler track, and the interior of the base located on both sides of the U-shaped groove is a hollow structure, which is used to install the hydraulic cylinder and accommodate the guide pin shaft respectively; One end of the U-shaped groove is plugged into the power end of the hydraulic cylinder, and the other end is provided with a guide pin shaft lead-out component; The guide pin shaft lead-out component is coaxially arranged with the hydraulic cylinder power end, and is used to make the hydraulic cylinder power end and the guide pin shaft lead-out component correspond to the track pin hole by adjusting the position of the device when the track is assembled.

2. The working device suitable for crawler assembly according to claim 1, characterized in that: The guide pin shaft lead-out component comprises a shaft sleeve assembly installed on the U-shaped groove and a top pipe connector arranged on the shaft sleeve assembly.

3. The working device suitable for crawler assembly according to claim 2, characterized in that: The sleeve assembly comprises a flange fixedly mounted on the U-shaped groove and an output sleeve fixedly connected to the flange; wherein the inner diameter of the output sleeve is communicated with the hollow structure of the base.

4. The working device suitable for crawler assembly according to claim 3 is characterized in that: The jacking pipe connecting piece comprises a lead-out shaft which is clearance-matched with the lead-out shaft sleeve and a positioning pin connected to the lead-out shaft.

5. The working device suitable for crawler assembly according to claim 4, characterized in that: The inner diameter of the lead-out shaft sleeve is larger than the diameter of the lead-out shaft and is used for clearance fit with the lead-out shaft; A positioning groove is provided on the outer wall of the lead-out sleeve, and the positioning groove is L-shaped; A shorter section of the positioning groove is connected to the end of the lead-out sleeve to form a channel for the positioning pin to enter; The longer section of the positioning groove is radially arranged on the lead-out shaft sleeve and is used to form a stopper for the positioning pin.

6. The working device suitable for crawler assembly according to claim 4, characterized in that: The inner diameter of the lead-out shaft is larger than the diameter of the lead pin shaft, and is used to guide the lead pin shaft to the end of the lead-out shaft sleeve, and to guide it to the hollow structure inside the base through the lead-out shaft sleeve.

7. The working device suitable for crawler assembly according to claim 1, characterized in that: Both ends of the base are provided with through openings, and the through opening close to the guide pin shaft lead-out component is larger than the length of the guide pin shaft.

8. The working device suitable for crawler assembly according to claim 1, characterized in that: The power end of the hydraulic cylinder passes through the base to the U-shaped groove, and the end of the power end of the hydraulic cylinder is inserted with a cylinder sleeve; wherein, the end of the cylinder sleeve facing the guide pin shaft lead-out component is provided with a circular groove for accommodating the track pin shaft.

9. The working device suitable for crawler assembly according to claim 1, characterized in that: The base is also provided with a plurality of reinforcing ribs and lifting ears for increasing the strength of the base and for lifting.

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