Portal crane change gear

Abstract

The utility model relates to the technical field of change gears, in particular to a portal crane change gear which comprises a change gear body, the change gear body is composed of an outer shaft tube, a baffle ring, an inner shaft tube and an insection printing groove, the outer shaft tube is arranged at the middle end of the outer portion of the inner shaft tube in a sleeved mode, the outer shaft tube and the inner shaft tube are detachably connected, and the insection printing groove is formed in the middle of the outer portion of the inner shaft tube. And meanwhile, the outer wall of the outer shaft tube is integrally connected with the insection printing groove, the two ends of the outer portion of the inner shaft tube are sleeved with the baffle rings, and the baffle rings are detachably connected with the inner shaft tube. According to the portal crane change gear, the change gear body is split into a plurality of parts which are connected in a fastening mode, the change gear body is improved, only parts on the change gear body need to be disassembled, corresponding positions are replaced, the part replacement mode is convenient, materials can be saved, and the utilization rate of the change gear body is increased.

Description

Technical Field

[0001] This utility model relates to the field of hanging wheel technology, and in particular to a gantry crane hanging wheel. Background Technology

[0002] The gantry crane's traveling wheel system refers to the system of wheels on a gantry crane (commonly known as a gantry crane). It is an important component of the gantry crane, responsible for supporting the entire crane and moving it on the track.

[0003] In the present invention, the gantry crane pulleys are generally installed by directly connecting the pulley body to the axle, or by connecting the pulley body to the U-shaped plate frame for installation, such as the pulley device for roadway retaining wall track disclosed in the prior art (announcement number CN201221368).

[0004] However, existing train wheels have the following technical problems during use: Since the main body of the train wheel is integrally welded and molded, once any part is worn after it is put into use, the entire train wheel body will have to be disassembled and replaced. This is not only inconvenient to replace and disassemble, but also wasteful. Summary of the Invention

[0005] The main purpose of this utility model is to overcome the shortcomings of the existing technology and provide a gantry crane hanger.

[0006] The technical solution adopted by this utility model to achieve its technical purpose is: a door operator hanger wheel, including a hanger wheel body, the hanger wheel body being composed of an outer shaft tube, a retaining ring, an inner shaft tube, and a toothed groove;

[0007] The outer shaft tube is sleeved on the outer middle end of the inner shaft tube, and the outer shaft tube and the inner shaft tube are detachably connected. At the same time, the outer wall of the outer shaft tube is integrally connected to the toothed groove.

[0008] The retaining rings are sleeved on both ends of the inner shaft tube, and the retaining rings are detachably connected to the inner shaft tube.

[0009] Preferably, the outer middle of the inner shaft tube is uniformly fixedly connected with arc-shaped fitting blocks, and the inner ring of the outer shaft tube has fitting grooves corresponding to the number and position of the fitting blocks; the fitting blocks and fitting grooves enable the outer shaft tube to be fitted and locked onto the outside of the inner shaft tube.

[0010] Preferably, the two outer ends of the inner shaft tube are integrally connected with connecting threads, and the retaining ring is threadedly connected to both ends of the shaft tube by cooperating with the connecting threads; when the retaining ring is threadedly connected to both ends of the shaft tube, the retaining ring just clamps the outer shaft tube.

[0011] Preferably, it also includes a plate base assembly, which includes a bent mounting plate. The vertical plate portion of the mounting plate has a movable groove, and a plate is provided inside the movable groove. The plate can move left and right inside the movable groove, and a shaft column is fixedly connected to one side of the plate. An inner shaft tube is rotatably connected to the shaft column. The inner shaft tube is sleeved on the shaft column and can maintain a rotatable connection with the shaft column. At the same time, since the plate can move left and right inside the movable groove, the entire pulley body can move left and right, which facilitates the adjustment of its position or the tension between it and the belt.

[0012] Preferably, the two ends of the plate are slidably connected to the inside of the movable groove via slide bars, and a lead screw is threaded to the middle of the plate. The two ends of the lead screw are fixed in the vertical plate portion of the mounting plate via bearing seats. The rotation of the lead screw drives the plate to move left and right on the slide bars.

[0013] The slide bar is configured as a T-shaped slide plate and is fixedly connected to the vertical plate portion of the mounting plate.

[0014] The two ends of the lead screw pass through the bearing seat and are rotatably connected to the bearing seat. The two ends of the lead screw are also provided with cross grooves. A flathead screwdriver or a Phillips head screwdriver can be inserted into the cross groove at either end to turn the lead screw and make it rotate.

[0015] Preferably, a set screw is provided on one side of the shaft seat. The set screw is threaded into the vertical plate portion, and one end of the set screw tightens the lead screw. The set screw can seal and tighten both ends of the lead screw, preventing the lead screw from easily deflecting when adjustment is not required, thus increasing the overall stability during use and providing a safety effect.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This gantry crane roller is composed of multiple parts that are fastened together. Through improvements to the roller body, while ensuring its normal operation, when any part of the roller body needs to be replaced, it is only necessary to remove the part from the roller body and replace it in the corresponding position. The part replacement method is convenient, saves materials, and improves the utilization rate of the roller body.

[0018] This gantry crane roller, through the setting of the plate base assembly, uses the axle seat to fix the roller body in the use position, and then uses a screwdriver to adjust the position of the roller body on the axle seat, thereby adjusting the tightness between the roller body and transmission components such as belts or chains. This makes it easy to replace parts when the gantry crane roller is used in belt or chain transmission mode, effectively increasing its applicability and versatility. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the main body of the train wheel.

[0020] Figure 2 This is a schematic diagram of the main structure of the gantry crane's hanging wheel.

[0021] Figure 3 This is a schematic diagram of the left front view of the outer shaft tube, the mating groove, and the toothed groove.

[0022] Figure 4 This is a top view of the inner tube, the mating block, and the connecting thread.

[0023] Figure 5 This is a top view schematic diagram of the retaining ring and toothed groove structure.

[0024] Figure 6 This is a schematic diagram of the main structure of the plate base assembly.

[0025] in:

[0026] 1-Gear body; 101-Outer shaft tube; 1011-Matching groove; 102-Retaining ring; 103-Inner shaft tube; 1031-Matching block; 1032-Connecting thread; 104-Tooth groove; 2-Plate base assembly; 201-Mounting plate; 202-Moving groove; 203-Shaft column; 204-Plate; 205-Lead screw; 206-Shaft seat; 207-Top screw; 208-Slide bar. Detailed Implementation

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model. Example 1

[0030] Please see Figure 1-5 A gantry crane pulley includes a pulley body 1, which is composed of an outer shaft tube 101, a retaining ring 102, an inner shaft tube 103, and a toothed groove 104.

[0031] An outer shaft tube 101 is sleeved on the outer middle end of the inner shaft tube 103. The outer shaft tube 101 and the inner shaft tube 103 are detachably connected. At the same time, the outer wall of the outer shaft tube 101 is integrally connected with a toothed groove 104. The outer middle end of the inner shaft tube 103 is uniformly fixedly connected with an arc-shaped fitting block 1031. The inner ring of the outer shaft tube 101 has fitting grooves 1011 corresponding to the number and position of the fitting blocks 1031. The fitting blocks 1031 and the fitting grooves 1011 make the outer shaft tube 101 fit and be engaged with the outside of the inner shaft tube 103.

[0032] Retaining rings 102 are fitted onto both ends of the inner shaft tube 103, and the retaining rings 102 are detachably connected to the inner shaft tube 103. The two ends of the inner shaft tube 103 are integrally connected with connecting threads 1032, and the retaining rings 102 are threadedly connected to both ends of the shaft tube 103 by engaging with the connecting threads 1032. When the retaining rings 102 are threadedly connected to both ends of the inner shaft tube 103, the retaining rings 102 clamp the outer shaft tube 101.

[0033] Specifically, in use, the main body 1 of the pulley is fixedly installed in the position of use. Through transmission connection with other components, the main body 1 of the pulley can rotate normally. Due to the wear of the toothed groove 104, when the main body 1 of the pulley needs to be replaced, it is only necessary to remove the retaining ring 102 on one side of the main body 1 of the pulley, and then replace the outer shaft tube 101. Then, install the new outer shaft tube 101 on the outside of the inner shaft tube 103, and tighten the retaining ring 102 again.

[0034] Similarly, movable components such as the inner shaft tube 103 and the fixed retaining ring 102 can be replaced accordingly.

[0035] It should be noted that, in order to further increase the stability of the fixed retaining ring 102 and prevent it from loosening or falling off, a retaining ring is also provided on one side of it. The retaining ring is clamped to both ends of the inner shaft tube 103 and at the same time, the fixed retaining ring 102 is restricted and fixed. Example 2

[0036] Please see Figure 1-6 Based on the above embodiments, the gantry crane pulley also includes a plate base assembly 2. The plate base assembly 2 includes a bent mounting plate 201. The vertical plate portion of the mounting plate 201 has a movable groove 202. A plate 204 is provided inside the movable groove 202. The plate 204 can move left and right inside the movable groove 202. A shaft column 203 is fixedly connected to one side of the plate 204. An inner shaft tube 103 is rotatably connected to the shaft column 203. The inner shaft tube 103 is sleeved on the shaft column 203 and can maintain a rotatable connection with the shaft column 203. Since the plate 204 can move left and right inside the movable groove 202, the entire pulley body 1 can move left and right, which facilitates the adjustment of its position or the tension between it and the belt.

[0037] The two ends of the plate 204 are slidably connected to the inside of the movable groove 202 via the slide bar 208, and the middle end is threadedly connected to the lead rod 205. The slide bar 208 is a T-shaped sliding plate and is fixedly connected to the vertical plate part of the mounting plate 201.

[0038] Both ends of the lead screw 205 are fixed to the vertical plate portion of the mounting plate 201 via bearing seats 206. The rotation of the lead screw 205 drives the plate 204 to move left and right on the slide bar 208. Both ends of the lead screw 205 pass through the bearing seats 206 and maintain a rotatable connection with the bearing seats 206. The two ends of the lead screw 205 are also provided with cross grooves. A flathead screwdriver or a Phillips head screwdriver can be inserted into the cross groove at either end to turn the lead screw 205.

[0039] Furthermore, in this embodiment, a set screw 207 is provided on one side of the bearing seat 206. The set screw 207 is threaded into the vertical plate portion, and one end of it tightens the lead screw 205. The set screw 207 can seal and tighten both ends of the lead screw 205, preventing the lead screw 205 from easily deflecting when adjustment is not required, thus increasing the overall stability during use and providing a safety effect.

[0040] Specifically, in use, when the gantry crane's hanging wheel is used in belt or chain transmission mode, the hanging wheel body 1 is fixedly installed in the use position by the bearing seat 206. The screw 205 is rotated by adjusting the screw rod 205, which drives the plate 204 to move left and right on the slide bar 208, thereby causing the shaft column 203 and the hanging wheel body 1 to move left and right, which facilitates the adjustment of the position of the hanging wheel body 1, and also facilitates the adjustment of the tightness between the belt or chain and other transmission components.

[0041] When the main body 1 of the pulley is kept in a relatively loose state with the transmission components such as belts or chains, it is convenient to replace the worn parts of the main body 1 of the pulley. After replacement, the tightness between the pulley and the transmission components such as belts or chains can be adjusted.

[0042] The solution in this embodiment can be selectively combined with solutions in other embodiments.

[0043] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural, procedural, or functional transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A gantry crane pulley, characterized in that: It includes a main body (1) of a train wheel, which is composed of an outer shaft tube (101), a retaining ring (102), an inner shaft tube (103), and a toothed groove (104); The outer shaft tube (101) is sleeved on the outer middle end of the inner shaft tube (103), and the outer shaft tube (101) and the inner shaft tube (103) are detachably connected. At the same time, the outer wall of the outer shaft tube (101) is integrally connected to the toothed groove (104). The retaining rings (102) are sleeved on both ends of the inner shaft tube (103), and the retaining rings (102) are detachably connected to the inner shaft tube (103).

2. The gantry crane pulley according to claim 1, characterized in that: The inner shaft tube (103) is uniformly fixedly connected to the outer middle end with an arc-shaped fitting block (1031), and the inner ring of the outer shaft tube (101) is provided with fitting grooves (1011) corresponding to the number and position of the fitting blocks (1031).

3. The gantry crane pulley according to claim 1, characterized in that: The inner tube (103) has a connecting thread (1032) integrally connected to both ends of the outer side. The retaining ring (102) is threadedly connected to both ends of the tube (103) by cooperating with the connecting thread (1032).

4. A gantry crane pulley according to claim 1, characterized in that: It also includes a plate base assembly (2), which includes a bent mounting plate (201). The vertical plate portion of the mounting plate (201) is provided with a movable groove (202). A plate (204) is provided inside the movable groove (202). The plate (204) can move left and right inside the movable groove (202). A shaft column (203) is fixedly connected to one side of the plate (204). The inner shaft tube (103) is rotatably connected to the shaft column (203).

5. A gantry crane pulley according to claim 4, characterized in that: The two ends of the plate (204) are slidably connected inside the movable groove (202) via slide bars (208), and the middle end is threaded with a lead screw (205). The two ends of the lead screw (205) are fixed inside the vertical plate of the mounting plate (201) via bearing seats (206). The rotation of the lead screw (205) drives the plate (204) to move left and right on the slide bars (208).

6. A gantry crane pulley according to claim 5, characterized in that: A set screw (207) is provided on one side of the bearing seat (206). The set screw (207) is threaded into the vertical plate portion, and one end of it tightens the lead screw (205).

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