Trolley sliding block for core pulling machine operation and trolley

Abstract

The utility model discloses a trolley sliding block for core pulling machine operation and a trolley. The sliding block comprises a bottom layer sliding block, a middle sliding block and a top layer sliding block which are connected in a matched mode. Wherein mutually matched combined connecting structures are arranged between the bottom-layer sliding block and the middle sliding block and between the middle sliding block and the top-layer sliding block, the bottom surface of the bottom-layer sliding block is of a plane structure, and a groove matched with the baffle plate is formed in the top surface of the top-layer sliding block. The assembly unit combined structure can be used for fixing baffle plates of tube bundles of different specifications, and a sliding block does not need to be manufactured independently. Bolt holes are formed in the two sides of the trolley, the bolts abut against the triangular inclined iron, the positions of the inclined iron can be adjusted by screwing and unscrewing the bolts, the trolley moves along with the tube bundles along the sliding ways, a set of trolley sliding blocks are additionally padded every time a part of the tube bundles are pulled out, the tube bundles are prevented from falling due to self weight, and the trolley can serve as a standard tool to be used in the corresponding field and has good popularization value.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of chemical static equipment maintenance, concretely relates to a trolley sliding block and trolley for core pulling machine operation. BACKGROUND

[0002] During the heat exchanger core pulling operation of the core pulling machine, a pad trolley sliding block is needed between the core pulling machine and the tube bundle, and the method adopted in the prior art is to directly add a pad iron, but due to the excessive pressure of the tube bundle on the sliding block, the pad iron above the sliding block has the risk of falling off and flying, and the safety quality hidden danger is relatively large. SUMMARY

[0003] The utility model solves the technical problems that a trolley sliding block and trolley for core pulling machine operation are provided, and the problem of large safety hidden danger of the prior art using a pad iron as a trolley sliding block is solved.

[0004] The utility model discloses a trolley sliding block and trolley for core pulling machine operation adopt the following technical scheme to solve the above technical problems:

[0005] A trolley sliding block for core pulling machine operation, comprising a bottom sliding block, an intermediate sliding block and a top sliding block connected with each other, wherein a combined connection structure matched with each other is arranged between the bottom sliding block and the intermediate sliding block and between the intermediate sliding block and the top sliding block, the bottom surface of the bottom sliding block is a plane structure, and a groove matched with the baffle is formed in the top surface of the top sliding block.

[0006] The intermediate sliding block comprises at least one block, and the adjacent two blocks are detachably connected.

[0007] A trapezoidal groove is formed in the middle position of the top surface of the top sliding block.

[0008] A square groove is formed in the middle position of the top surface of the bottom sliding block and the intermediate sliding block, and a boss matched with the square groove is arranged in the middle position of the bottom surface of the top sliding block and the intermediate sliding block.

[0009] A trolley for core pulling machine operation, comprising a trolley body, adjustable limit pieces arranged at both ends of the trolley body, the trolley sliding block arranged on the adjustable limit pieces, the adjusting structure of the limit piece movably connected to the trolley body at both ends of the trolley body, the translation of the limit piece on the trolley flat plate is controlled through the adjusting structure, and the trolley sliding block is sequentially and layerwisely arranged at the front end of the limit piece.

[0010] The limit piece is a triangular inclined iron, one right angle surface of the triangular inclined iron is arranged on the trolley flat plate, and the two inclined surfaces are oppositely arranged.

[0011] The adjusting structure comprises an adjusting bolt threadedly connected with the trolley body, a bearing fixedly connected with the triangular inclined iron, and one end of the adjusting bolt fixedly connected with the bearing.

[0012] The trolley slider comprises a bottom layer slider and a top layer slider arranged on the inclined surface of the triangular inclined iron.

[0013] The intermediate sliders are sequentially increased in number according to the removal of the baffles.

[0014] The bottom end of the trolley body is provided with a walking roller.

[0015] Compared with the prior art, the trolley has the following beneficial effects:

[0016] 1. The assembled unit combined structure can be used for fixing baffles of different specifications and does not need to separately manufacture sliders.

[0017] 2. The upper recess of the uppermost slider is a trapezoidal recess used for clamping baffles of different sizes; the lower part is a common square recess; the upper and lower recesses of the slider with a pad in the middle are common square recesses used for mutual fixation of the sliders when the pad is added.

[0018] 3. The trolley is provided with bolt holes on both sides, and the bolts can be used to support the triangular inclined iron; the position of the inclined iron can be adjusted by loosening or tightening the bolts; the trolley moves along the slide with the pipe bundle; a group of trolley sliders are added with a pad every time a part of the pipe bundle is extracted to avoid the pipe bundle from falling due to its own weight; the trolley can be used as a standard tool in the corresponding field and has good popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the trolley slider structure of the utility model.

[0020] Figure 2 It is a schematic view of the trolley structure of the utility model.

[0021] In the figure, the signs are as follows: 1-bottom layer slider; 2-intermediate slider; 3-top layer slider; 4-trolley body; 5-triangular inclined iron; 6-trolley slider; 7-bolt; 8-bearing; 9-roller. DETAILED DESCRIPTION

[0022] In order to enable personnel in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments.

[0023] Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without making creative efforts shall belong to the scope of protection of the present application.

[0024] A trolley slider for core-pulling machine operation, comprising a bottom layer slider, an intermediate slider and a top layer slider connected with each other, wherein a combined connection structure matched with each other is arranged between the bottom layer slider and the intermediate slider and between the intermediate slider and the top layer slider, the bottom surface of the bottom layer slider is a plane structure, and a groove matched with a baffle is arranged on the top surface of the top layer slider.

[0025] Specific embodiment one, as shown in Figure 1 ,

[0026] A trolley slider for core-pulling machine operation, comprising a bottom layer slider 1, an intermediate slider 2 and a top layer slider 3 connected with each other, wherein a combined connection structure matched with each other is arranged between the bottom layer slider 1 and the intermediate slider 2 and between the intermediate slider 2 and the top layer slider 3, the bottom surface of the bottom layer slider 1 is a plane structure, and a groove matched with a baffle is arranged on the top surface of the top layer slider 3.

[0027] The intermediate slider 2 comprises at least one block, and adjacent two blocks are detachably connected.

[0028] A trapezoidal groove is arranged in the middle position of the top surface of the top layer slider 3.

[0029] A square groove is arranged in the middle position of the top surface of the bottom layer slider 1 and the intermediate slider 2, and a boss matched with the square groove is arranged in the middle position of the bottom surface of the top layer slider 3 and the intermediate slider 2.

[0030] A trolley for core-pulling machine operation, comprising a trolley body, adjustable limit members arranged at both ends of the trolley body, a plurality of trolley sliders arranged on the adjustable limit members, adjustment structures movably connecting the limit members at both ends of the trolley body, the limit members being controlled to translate on the trolley plate through the adjustment structures, and the trolley sliders being sequentially and layerwisely arranged at the front end of the limit members.

[0031] Specific embodiment two, as shown in Figure 2 ,

[0032] A trolley for core-pulling machine operation, comprising a trolley body 4, adjustable limit members arranged at both ends of the trolley body 4, a plurality of trolley sliders 6 arranged on the adjustable limit members, adjustment structures movably connecting the limit members at both ends of the trolley body 4, the limit members being controlled to translate on the trolley plate through the adjustment structures, and the trolley sliders being sequentially and layerwisely arranged at the front end of the limit members.

[0033] The limit member is a triangular inclined iron 5, one right-angled surface of the triangular inclined iron 5 is arranged on the trolley plate, and two inclined surfaces are oppositely arranged.

[0034] The adjustment structure comprises an adjustment bolt 7 threadedly connected with the trolley body, a bearing 8 fixedly connected with the triangular inclined iron, and one end of the adjustment bolt 7 fixedly connected with the bearing 8.

[0035] The trolley slider at least includes a bottom layer slider and a top layer slider arranged on the inclined surface of the triangular inclined iron.

[0036] The intermediate slider sequentially increases in number according to the removal of the baffle.

[0037] The bottom end of the trolley body is provided with a walking roller 9.

[0038] The specific working principle and application process of the trolley for core pulling machine operation are as follows:

[0039] After the trolley is made, the trolley is pushed under the baffle of the tube bundle, the sliding block is added according to the actual height, the sliding block with trapezoidal groove needs to be placed on the uppermost layer, the left and right positions of the inclined iron are adjusted by rotating the adjusting bolt, and the groove is clamped on the baffle. Then the core pulling can be continued, the trolley follows the tube bundle and moves along the slide, and a group of trolley sliders are added every time a part of the tube bundle is pulled out to avoid the tube bundle from falling due to its own weight.

[0040] For example:

[0041] During the overhaul of the SHP feed heater 21E0209 in the separation process of a propane dehydrogenation device, the core pulling and gasket replacement are carried out after the head is removed. The width of the baffle of the tube bundle of the heat exchanger is 25mm, which is not suitable for the conventional 20mm and 30mm grooves. The use of 30mm groove sliders is easy to intensify the shaking of the tube bundle during the core pulling process, and increases the risk of lifting operation. Therefore, the trapezoidal groove slider is used for fixation to ensure the smooth progress of the core pulling process.

[0042] The tooling improves the style of the sliding block and the gasket iron, ensures that the sliding block spacing does not affect the core pulling operation, and meets the support stability.

[0043] It should be noted that the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above-described drawings are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0044] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0045] In addition, the above-mentioned terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0046] In addition, the terms "mounting", "setting", "provided with", "connecting", "connecting", "sleeving" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0047] It should be understood that the present scheme is not limited to the above-mentioned specific embodiments, and the devices and structures not fully described should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the present technical scheme by using the disclosed methods and technical contents without departing from the scope of the present technical scheme, or modify equivalent embodiments of equivalent changes, which does not affect the essential content of the present scheme. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present scheme without departing from the scope of the present technical scheme still belongs to the scope of protection of the present technical scheme.

Claims

1. A slider for a trolley used in a core-pulling machine, characterized in that: It includes a bottom slider, an intermediate slider, and a top slider that are matched and connected to each other; wherein, the bottom slider and the intermediate slider, and the intermediate slider and the top slider are provided with a matching combination connection structure, the bottom surface of the bottom slider is a planar structure, and the top surface of the top slider has a groove that matches the baffle plate.

2. The trolley slider for core-pulling machine operation according to claim 1, characterized in that: The intermediate slider includes at least one piece, and adjacent sliders are detachably connected.

3. The trolley slider for core-pulling machine operation according to claim 2, characterized in that: A trapezoidal groove is formed at the center of the top surface of the top slider.

4. The trolley slider for core-pulling machine operation according to claim 1, characterized in that: A square groove is provided in the middle of the top surface of the bottom slider and the middle slider, and a boss that matches and connects to the square groove is provided in the middle of the bottom surface of the top slider and the middle slider.

5. A trolley used in a core-pulling machine, characterized in that: The device includes a trolley body, adjustable limiting members disposed at both ends of the trolley body, and trolley sliders disposed on the adjustable limiting members as described in any one of claims 1 to 4. The two ends of the trolley body are movably connected to the adjusting structure of the limiting members, and the adjusting structure controls the translating of the limiting members on the trolley plate. The trolley sliders are sequentially stacked at the front end of the limiting members.

6. The trolley for core-pulling machine operation according to claim 5, characterized in that: The limiting component is a triangular wedge, with one right-angled surface of the triangular wedge placed on the flat plate of the trolley, and the two wedges arranged opposite each other.

7. The trolley for core-pulling machine operation according to claim 6, characterized in that: The adjustment structure includes an adjustment bolt threadedly connected to the trolley body, a bearing fixedly connected to the triangular wedge, and one end of the adjustment bolt fixedly connected to the bearing.

8. The trolley for core-pulling machine operation according to claim 7, characterized in that: The trolley slider includes at least a bottom slider and a top slider disposed on the inclined surface of the triangular wedge.

9. The trolley for core-pulling machine operation according to claim 8, characterized in that: The number of intermediate sliders increases sequentially as the baffles are removed.

10. The trolley for core-pulling machine operation according to claim 5, characterized in that: The bottom of the trolley body is equipped with traveling rollers.

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