A device for installing a hinge shaft of a ring-suspension trolley running mechanism

Abstract

The application discloses a kind of for ring crane car operating mechanism hinge axle dress device, including by several connecting rods fixed composition main frame, wherein the connecting rod on the middle of the bottom of main frame is provided with detachable middle circular groove frame, wherein the connecting rod on the front side of the bottom of main frame is provided with fixed front circular groove frame, middle circular groove frame is composed of outer groove, inner groove, several fixed rods and the same number of connecting pieces with fixed rod, the front circular groove frame is composed of outer groove, inner groove and several fixed rods, the threaded hole can install bolt, specifically, the threaded hole is respectively opened in the both sides and bottom of outer groove, i.e. the relative distance between the outer groove and inner groove can be adjusted by bolt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hinge shaft installation, in particular to the hinge shaft installation of a high-positioned and heavy-duty trolley running mechanism. BACKGROUND

[0002] The trolley running mechanism of a nuclear island ring crane is connected with a main beam through a hinge shaft. The main beam of the ring crane is placed on double-layer cement piers, and the hinge shaft is installed at a position about 3.7 m away from the ground. The total weight of the trolley running mechanism is about 18.5 t, and the size of the hinge shaft is 300*1035 mm, with a weight of about 570 kg. The hinge shaft needs to be installed in the shaft hole of the main beam, and the installation of the hinge shaft needs to be performed in the air. The installation steps are divided into three steps: extracting the hinge shaft of the main beam, centering the hinge shaft hole of the main beam and the hinge shaft hole of the trolley running mechanism, and finally installing the hinge shaft.

[0003] At present, at least the following problems exist in the installation process:

[0004] (1) The hinge shaft installation position is high from the ground, and the traditional ground shaft installation method is not applicable;

[0005] The trolley running mechanism weighs about 18.5 t, and the center of gravity and the geometric center are not coincident, so it is difficult to center the hinge shaft hole of the main beam and the hinge shaft hole of the trolley running mechanism;

[0006] The hinge shaft is too large and too heavy, and direct binding and installation with a sling will face safety and quality risks;

[0007] The main beam and the end beam above the trolley running mechanism interfere with each other, and cannot be directly hoisted;

[0008] The construction site is tight, and only one automobile crane is available for stationing. SUMMARY

[0009] The present application aims to solve the problems existing in the hinge shaft installation in the prior art. To this end, one object of the present application is to provide a hinge shaft installation device for a ring crane trolley running mechanism, which can bear the trolley running mechanism and assist in adjusting the centering and installation of the hinge shaft, so that the installation of the trolley running mechanism becomes easier, faster, simpler, and safer.

[0010] To achieve the above object, the present application provides a hinge shaft installation device for a ring crane trolley running mechanism, which comprises a main frame fixed by a plurality of connecting rods, the main frame is a frame structure and is hollow inside; wherein a detachable middle circular groove frame is arranged on the connecting rod in the middle of the bottom of the main frame, i.e. the middle circular groove frame is installed inside the main frame; wherein a fixed front circular groove frame is arranged on the connecting rod at the front side of the bottom of the main frame, i.e. the front circular groove frame is installed outside the main frame, and the middle circular groove frame and the front circular groove frame have the same height.

[0011] Further based on the scheme, the middle circular groove frame is composed of an outer groove, an inner groove, a plurality of fixing rods and a plurality of connecting plates with the same number of fixing rods, one end of the fixing rod is fixedly provided with a connecting plate, the connecting plate is provided with a plurality of threaded holes at the position corresponding to the connecting rod at the middle of the bottom of the main frame, the threaded holes can be installed with bolts, that is, the middle circular groove frame is installed in the main frame in a detachable manner through the bolts, the other end of the fixing rod is fixedly provided with the outer groove, and the inner groove is installed in the outer groove.

[0012] Further based on the scheme, the front circular groove frame is composed of an outer groove, an inner groove and four fixing rods, two horizontal fixing rods are fixedly arranged on the connecting rods on the two sides of the main frame at one end and on the outer wall of the outer groove at the other end, one vertical fixing rod is fixedly arranged on the bottom of the outer groove at one end, the inner groove is installed in the outer groove, and the other end of the other oblique fixing rod is fixedly arranged on the connecting rod on the front side of the bottom of the main frame and on the bottom of the outer groove.

[0013] Further based on the scheme, a plurality of threaded holes are arranged on the outer groove, and the threaded holes can be installed with bolts, specifically, the threaded holes are arranged on the two sides and the bottom of the outer groove, that is, the relative distance between the outer groove and the inner groove can be adjusted through the bolts.

[0014] Further based on the scheme, the cross section of the outer groove is a half frame structure, and the cross section of the inner groove is a semicircular structure.

[0015] Further based on the scheme, a disc is fixedly arranged on the outer side of the inner groove of the front circular groove frame, and a small hole is arranged on the disc.

[0016] Further based on the scheme, detachable cross beams are arranged on the two sides of the upper end of the main frame, a plurality of threaded holes are arranged on the connecting rods at the upper end of the main frame at positions corresponding to the threaded holes, and the threaded holes can be installed with bolts, that is, the cross beams are installed on the main frame in a detachable manner through the bolts.

[0017] Further based on the scheme, at least one lifting lug is fixedly arranged on each of the front and rear ends of each cross beam, and the distance between the lifting lugs on a single cross beam is greater than the width of the ring lifting main beam and the end beam.

[0018] Further based on the scheme, at least two protruding limiting blocks are arranged on the connecting rods on the two sides of the bottom of the main frame, and the limiting blocks are used in cooperation with the limiting blocks to limit the position.

[0019] The beneficial effects of the application are as follows:

[0020] The main body frame is arranged to assist the hinged shaft to be installed, the installation groove of the middle circular groove frame and the front circular groove frame is designed as a double-layer structure, the bolt is used for jacking adjustment, the hinged shaft is guaranteed to be horizontally centered, and the centering of the hinged shaft hole of the main beam and the hinged shaft hole of the cart running mechanism becomes simpler.

[0021] The middle circular groove frame of the application plays a leveling role in the extraction of the hinged shaft, offsets the eccentricity caused by the gravity of the hinged shaft, and enables the hinged shaft to be smoothly extracted.

[0022] Compared with the traditional method of directly using a sling to bind and install the hinged shaft, the main body frame arranged in the application makes the installation of the hinged shaft safer and the installation quality higher.

[0023] The features and advantages of the application will be described in detail in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the schematic diagram of the overall structure of the application Figure 1 ;

[0025] Figure 2 is the schematic diagram of the overall structure of the application Figure 2 ;

[0026] Figure 3 is the schematic diagram of the overall structure of the application

[0027] Figure 4 is the schematic diagram of the overall structure of the application

[0028] Figure 5 is the schematic diagram of the overall structure of the application

[0029] In the figure: 1-main body frame, 101-connection rod, 2-middle circular groove frame, 3-front circular groove frame, 4-outer groove, 5-inner groove, 6-fixing rod, 7-connection sheet, 8-bolt, 9-disc, 10-small hole, 11-cross beam, 12-lifting lug, 13-limiting block, 14-hinged shaft, 15-cart running mechanism, 16-main beam, 17-long screw rod. DETAILED DESCRIPTION

[0030] The exemplary embodiments will be described in detail hereinbelow with reference to the drawings. In the following description, the same drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0031] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The words “a” or “one” and similar terms used in this specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0032] like Figures 1-2 As shown, a hinge shaft mounting device for a ring crane trolley running mechanism includes a main frame 1, which is composed of 11 connecting rods 101 fixed together by welding. The main frame 1 is a frame structure with a hollow interior. A detachable central circular groove frame 2 is provided on the connecting rod 101 at the bottom center of the main frame 1, that is, the central circular groove frame 2 is installed inside the main frame 1. A fixed front circular groove frame 3 is provided on the connecting rod 101 at the bottom front side of the main frame 1, that is, the front circular groove frame 3 is installed on the outside of the main frame 1. The central circular groove frame 2 and the front circular groove frame 3 are at the same height.

[0033] In this embodiment, the central circular groove frame 2 is composed of an outer groove 4, an inner groove 5, two fixing rods 6, and a number of connecting pieces 7 equal to the number of fixing rods 6. One end of the fixing rod 6 is fixedly provided with a connecting piece 7. The connecting piece 7 and the connecting rod 101 in the middle of the bottom of the main frame 1 are provided with several threaded holes at corresponding positions. The threaded holes can be used to install bolts 8. That is, the central circular groove frame 2 is detachably installed in the main frame 1 by bolts 8. The other end of the fixing rod 6 is fixedly provided with an outer groove 4, and the inner groove 5 is installed inside the outer groove 4.

[0034] In this embodiment, the front circular groove frame 3 is composed of outer groove 4, inner groove 5 and four fixed rods 6, two horizontal fixed rods 6 are fixedly arranged on the connecting rods 101 on both sides of the main frame 1 at one end, and are fixedly arranged on the outer wall of the outer groove 4 at the other end, one vertical fixed rod 6 is fixedly arranged on the bottom of the outer groove 4 at one end, the inner groove 5 is installed inside the outer groove 4, and the other diagonal fixed rod 6 is fixedly arranged on the connecting rod 101 on the bottom of the main frame 1 at one end, and is fixedly arranged on the bottom of the outer groove 4 at the other end.

[0035] In this embodiment, the cross section of the outer groove 4 is a half frame structure, the cross section of the inner groove 5 is a semicircular structure, a plurality of threaded holes are arranged on the outer groove 4, and bolts 8 can be installed in the threaded holes. Specifically, the threaded holes are respectively arranged on both sides and the bottom of the outer groove 4, the bolts 8 are installed in the threaded holes of the outer groove 4, and the threaded heads of the bolts 8 abut against the bottom or both sides of the inner groove 5. The bolts 8 on the bottom of the outer groove 4 can adjust the height of the inner groove 5, the bolts 8 on both sides of the outer groove 4 can fix the inner groove 5, prevent the inner groove 5 from moving left and right during work, and ensure the stability of disassembling and assembling the hinge shaft, that is, the relative distance between the outer groove 4 and the inner groove 5 can be adjusted by the bolts 8.

[0036] In this embodiment, the inner groove 5 of the front circular groove frame 3 is fixedly provided with a disc 9 on the outer side, a small hole 10 is arranged on the disc 9, a long screw rod 17 can be installed in the small hole 10, and the long screw rod 17 can be used to rotate to install the hinge shaft 14.

[0037] In this embodiment, detachable cross beams 11 are arranged on both sides of the upper end of the main frame 1, a plurality of threaded holes are arranged on the connecting rods 101 at positions corresponding to the cross beams 11 and the upper end of the main frame 1, and the threaded holes can install bolts 8. That is, the cross beams 11 can be detachably installed on the main frame 1 through the bolts 8. After the cross beams 11 are removed, the cart running mechanism 15 can be hoisted in, the cross beams 11 are installed back on the main frame 1 after the cart running mechanism 15 is hoisted in, the cross beams 11 can limit the left and right positions of the cart running mechanism 15, prevent the cart running mechanism 15 from separating from the main frame 1, and each cross beam 11 is fixedly provided with a lifting lug 12 at the front and rear ends. The crane can hoist the main frame 1 through the lifting lugs 12, the distance between the two lifting lugs 12 on a single cross beam 11 is greater than the width of the ring-lifting main beam and the end beam, so as to avoid the interference of the main beam and the end beam during hoisting and affect the installation of the hinge shaft.

[0038] In this embodiment, the connecting rods 101 on both sides of the bottom of the main frame 1 are provided with two protruding limiting blocks 13, the limiting blocks 13 are used in cooperation with the limiting blocks 13 to limit the wheel body of the ring-lifting cart running mechanism 15, and prevent the ring-lifting cart running mechanism 15 from moving forward and backward.

[0039] AsFigures 3-5 As shown, the specific steps of an operation method for a hinge shaft mounting device for a ring crane trolley traveling mechanism are as follows:

[0040] S1. Lift the main frame 1. Use a crane to lift the main frame 1. When the inner groove 5 in the middle circular groove frame 2 and the front circular groove frame 3 is roughly the same as the shaft hole position of the main beam 16, adjust the bolts 8 on both sides and the bottom of the middle circular groove frame 2 and the front circular groove frame 3 so that the inner groove 5 is tangent to the lower edge of the shaft hole. At this time, the hinge shaft 14 is located in the inner groove 5 of the middle circular groove frame 2.

[0041] S2. Pull out the hinge shaft 14. Pull the hinge shaft 14 out of the shaft hole, that is, transfer the hinge shaft 14 from the middle circular groove frame 2 to the front circular groove frame 3. When pulling out the shaft hole, you can use a jack to hold the steel plate near the shaft hole. If necessary, you can apply appropriate grease to the surface of the inner groove 5 of the front circular groove frame 3 so that the hinge shaft can be transferred smoothly.

[0042] S3. Lower the main frame 1 and hinge shaft 14. Use a crane to lower the main frame 1 together with the hinge shaft 14 to the ground. Note that the weight of the hinge shaft 14 will cause the center of gravity of the hoisted object to shift. The hoisted object can be stabilized by adjusting the guide rope. If necessary, the hinge shaft 14 can be tied and fixed to the front circular groove frame 3 with hemp rope or steel wire rope to prevent the hinge shaft 14 from slipping during hoisting.

[0043] S4. Remove the central circular groove frame 2 and the crossbeam 11. Remove the central circular groove frame 2 and the crossbeam 11 from the main frame 1 by unscrewing the bolts 8, and use a tank trolley to move the main frame 1 out from under the main beam 16.

[0044] S5. Install the trolley traveling mechanism 15 into the main frame 1. After hoisting the trolley traveling mechanism 15 into the main frame 1, install the crossbeam 11 back into the main frame 1. Note that the center line of the trolley traveling mechanism 15 and the main frame 1 should be aligned as much as possible, and the axis of the hinge shaft 14 and the shaft hole of the trolley traveling mechanism 15 should be coincident as much as possible to ensure that the hinge shaft 14 can be properly installed later. Then, use the tank trolley to transfer the main frame 1 together with the trolley traveling mechanism 15 to the area below the main beam 16.

[0045] S6. Lift the main frame 1, the trolley traveling mechanism 15 and the hinge shaft 14. Use a crane to lift the main frame 1 together with the trolley traveling mechanism 15 and the hinge shaft 14. When the positions of the inner groove 5 in the front circular groove frame 3, the shaft hole of the trolley traveling mechanism 15 and the shaft hole of the main beam 16 are approximately equal, adjust the bolts 8 on both sides and the bottom of the outer groove 4 of the middle circular groove frame 2 and the front circular groove frame 3 so that the inner groove 5 is tangent to the lower edge of the shaft hole of the main beam 16.

[0046] S7, install hinge shaft 14 and cart running mechanism 15, through long screw rod 17, push hinge 14 from inner groove 5 in front circular groove frame 3 into the shaft hole of main beam 16, if necessary, can smear grease on the surface of inner groove 5, so that hinge shaft 14 can be smoothly transferred;

[0047] S8, separate the main body frame 1 cart running mechanism 15, remove cross beam 11, then the main body frame 1 can be separated from the cart running mechanism 15 by means of crane, forklift, hand chain hoist and other tools, and is lowered to the ground.

[0048] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A hinge shaft mounting device for a ring crane trolley traveling mechanism, comprising a main frame composed of several connecting rods, characterized in that, A detachable central circular groove frame is provided on the connecting rod at the bottom center of the main frame, and a fixed front circular groove frame is provided on the connecting rod at the bottom front of the main frame. The central circular groove frame consists of an outer groove, an inner groove, several fixed rods, and a number of connecting pieces equal to the number of fixed rods. A connecting piece is fixedly provided at one end of each fixed rod. Several threaded holes are provided at the corresponding positions of the connecting piece and the connecting rod at the bottom center of the main frame. Bolts can be installed in the threaded holes. The central circular groove frame is detachably installed in the main frame by bolts. The outer groove is fixedly provided at the other end of each fixed rod. The front circular groove frame consists of an outer groove, an inner groove, and four fixing rods. Two horizontal fixing rods are fixed at one end to the connecting rods on both sides of the main frame and at the other end to the outer wall of the outer groove. One vertical fixing rod is fixed at one end to the bottom of the outer groove. Another oblique fixing rod is fixed at one end to the connecting rod at the front bottom of the main frame and at the other end to the bottom of the outer groove. The outer grooves of the central circular groove frame and the front circular groove frame are equipped with inner grooves. The outer groove has a semi-frame structure in cross-section, and the inner groove has a semi-circular structure in cross-section. The outer groove is provided with several threaded holes for installing bolts. The threaded holes are respectively opened on both sides and the bottom of the outer groove. The bolts are installed in the threaded holes of the outer groove, and the threaded head of the bolts abuts against the bottom or both sides of the inner groove. The bolts at the bottom of the outer groove can adjust the height of the inner groove, and the bolts on both sides of the outer groove serve to fix the inner groove and prevent the inner groove from moving left and right during operation. The upper two sides of the main frame are provided with detachable crossbeams. The crossbeams and the connecting rods at the upper end of the main frame are provided with several threaded holes at corresponding positions. Bolts can be installed in the threaded holes. The crossbeams are detachably installed on the main frame by bolts.

2. The hinge shaft mounting device for a ring crane trolley traveling mechanism according to claim 1, characterized in that, Each of the aforementioned beams is provided with at least one lifting lug at both the front and rear ends.

3. The hinge shaft mounting device for a ring crane trolley traveling mechanism according to claim 2, characterized in that, At least two protruding limiting blocks are provided on the connecting rods on both sides of the bottom of the main frame. The limiting blocks work together to limit the movement.

4. The hinge shaft mounting device for a ring crane trolley traveling mechanism according to claim 3, characterized in that, A disc is fixedly installed on the outer side of the inner groove of the front circular groove frame, and a small hole is opened on the disc.

5. A hinge shaft mounting device for a ring crane trolley traveling mechanism according to claim 4, characterized in that, The connecting piece and the connecting rod at the bottom center of the main frame are provided with several threaded holes at corresponding positions, and bolts can be installed in the threaded holes.

6. A hinge shaft mounting device for a ring crane trolley traveling mechanism according to claim 5, characterized in that, The middle circular groove frame is at the same height as the front circular groove frame.

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