Climbing frame and tower crane

Abstract

The utility model discloses a climbing frame and a tower crane. The climbing frame comprises a climbing frame body, and a first cross beam and a second cross beam which are perpendicular to each other are arranged on the climbing frame body; the first roller assembly is clamped on the first cross beam and is used for guiding a first vertical side surface of a main chord member of the standard knot; the second rolling wheel assembly is used for guiding a second vertical side face of the main chord member, the second rolling wheel assembly is clamped on the second cross beam, the second rolling wheel assembly and the first rolling wheel assembly are located at the same installation height, and the first vertical side face is perpendicular to the second vertical side face. The climbing frame has the advantages that the structure is simple, the stress balance can be improved, and the operation stability is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of tower cranes, and in particular relates to a climbing frame and a tower crane. Background Art

[0002] In recent years, with the in-depth development of the construction industry, tower cranes have been widely used. The promotion and use of tower cranes has gradually changed the vertical and horizontal transportation methods of construction, created safe working conditions for operators, and also improved work efficiency.

[0003] The climbing frame is an important part of the tower crane. It is mainly composed of four main chords, beams connected between adjacent main chords, and webs connected between the main chords and the beams, which are connected to each other to form a frame structure with a quadrilateral cross section. The climbing frame is mounted on the tower of the tower crane and is connected to the tower structure. When the tower crane needs to be raised, the upper components of the tower body are lifted up through the climbing frame and the jacking system set on the climbing frame, and then the standard section is introduced to increase the height of the tower crane.

[0004] The roller device on the climbing frame is one of the important components in the tower crane climbing frame system. They bear the supporting and guiding function of the tower crane during the vertical climbing process. The rollers on the roller device are generally installed on the straight belly rod of the climbing frame, close to the main chord rod. They are generally divided into two layers, upper and lower, with two on each of the four sides of each layer. Through the rolling of the rollers, the tower crane can be lifted and lowered vertically smoothly and safely. However, the multiple rollers in the roller device of the prior art are distributed in different heights, which is prone to force imbalance and thus leads to unstable operation of the rollers. Utility Model Content

[0005] The purpose of the present application is to provide a climbing frame and a tower crane, wherein the climbing frame has the advantages of simple structure, improved force balance and guaranteed operation stability.

[0006] In order to achieve the above-mentioned object, the first aspect of the present application provides a climbing frame, which includes:

[0007] A climbing frame body, on which a first crossbeam and a second crossbeam perpendicular to each other are arranged;

[0008] A first roller assembly is mounted on the first cross beam and is used to guide a first vertical side surface of the main chord of the standard section;

[0009] The second roller assembly is used to guide the second vertical side surface of the main chord. The second roller assembly is clamped on the second cross beam and is at the same installation height as the first roller assembly, wherein the first vertical side surface and the second vertical side surface are perpendicular to each other.

[0010] In an embodiment of the present application, the first roller assembly and the second roller assembly both include:

[0011] A mounting seat, wherein a mounting space is formed on one side of the mounting seat;

[0012] The roller is rotatably arranged on the mounting seat and is located at a side of the mounting seat away from the mounting space. A guide surface is formed on the roller.

[0013] In an embodiment of the present application, an adjustment gap for adjusting the installation position of the mounting seat is also formed on the mounting seat, and the adjustment gap is located on a side of the mounting space close to the roller.

[0014] In an embodiment of the present application, the width of the gap is adjusted to be in the range of 3 mm to 12 mm.

[0015] In an embodiment of the present application, the roller is connected to the mounting seat via a connecting shaft, and the first roller assembly and the second roller assembly both include a stopper for limiting the pivoting of the connecting shaft.

[0016] In an embodiment of the present application, a notch space is formed on the outer circumference of the connecting shaft, the stopper is plate-shaped and is disposed on the mounting seat, and a portion of the stopper extends laterally into the notch space.

[0017] In an embodiment of the present application, the stopper is detachably connected to the mounting seat.

[0018] In an embodiment of the present application, the mounting base includes a connecting plate and a first mounting plate and a second mounting plate that are distributed in parallel and spaced apart from each other. The roller is arranged on the same side of the first mounting plate and the second mounting plate and between the first mounting plate and the second mounting plate. The first mounting plate and the second mounting plate on the other side away from the roller jointly form an installation space. The connecting plate is arranged between the first mounting plate and the second mounting plate and is used to connect the first mounting plate and the second mounting plate.

[0019] In an embodiment of the present application, a first clamping groove and a second clamping groove are respectively formed on the first mounting plate and the second mounting plate, and the first clamping groove, the second clamping groove and the space between the first clamping groove and the second clamping groove together form an installation space.

[0020] A second aspect of the present application provides a tower crane, which comprises the above-mentioned climbing frame.

[0021] It can be known from the above technical scheme that the climbing frame includes a climbing frame body, a first roller assembly and a second roller assembly, and the climbing frame body is provided with a first crossbeam and a second crossbeam perpendicular to each other; the first roller assembly is clamped on the first crossbeam and used to guide the first vertical side surface of the main chord of the standard section; the second roller assembly is used to guide the second vertical side surface of the main chord, and the second roller assembly is clamped on the second crossbeam and is at the same installation height as the first roller assembly, wherein the first vertical side surface and the second vertical side surface are perpendicular to each other. Since the first roller assembly and the second roller assembly can be clamped on the two crossbeams respectively and are at the same installation height, the first roller assembly and the second roller assembly can support and guide the main chord of the standard section at the same vertical height, avoiding the occurrence of uneven force, ensuring the smooth operation of the roller device, and enabling the roller device to transfer force to the climbing frame more evenly.

[0022] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0024] Figure 1 is a schematic diagram of the first partial structure of the climbing frame in this embodiment ( Figure 4 Schematic diagram of the local structure at N in the figure);

[0025] Figure 2 is a schematic diagram of a second partial structure of the climbing frame in this embodiment;

[0026] Figure 3 This is a schematic diagram of the structure of the mounting base in this embodiment;

[0027] Figure 4 Schematic diagram of the overall structure of the climbing frame in this embodiment;

[0028] Figure 5 It is a schematic diagram of the installation and matching of the first roller assembly, the second roller assembly and the standard section in this embodiment.

[0029] Description of Reference Numerals

[0030] 1-climbing frame body; 101-first crossbeam; 102-second crossbeam; 2-first roller assembly; 3-standard section; 301-main chord; 4-second roller assembly; 401-mounting seat; 4011-connecting plate; 4012-first mounting plate; 4013-second mounting plate; 4014-first clamping groove; 4015-second clamping groove; 402-installation space; 403-roller; 404-guide surface; 405-adjustment gap; 5-connecting shaft; 6-stopper. DETAILED DESCRIPTION

[0031] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0032] The embodiment of the present application provides a new type of climbing frame, such as Figure 1 , Figure 4 and Figure 5 As shown, the climbing frame includes:

[0033] A climbing frame body, on which a first crossbeam and a second crossbeam perpendicular to each other are arranged;

[0034] A first roller assembly 2, which is mounted on the first cross beam and is used to guide a first vertical side surface of a main chord 301 of the standard section 3;

[0035] The second roller assembly 4 is used to guide the second vertical side surface of the main chord 301. The second roller assembly 4 is clamped on the second cross beam and is at the same installation height as the first roller assembly 2, wherein the first vertical side surface is perpendicular to the second vertical side surface.

[0036] Specifically, the standard section 3 includes four main chords 301 respectively located at four corners, and each main chord 301 includes two vertical side surfaces corresponding to the corners of the standard section 3; two groups of vertically spaced beam assemblies are provided on the climbing frame body 1, and each group of beam assemblies includes four beams that together form a rectangle on the same horizontal plane, and the first beam and the second beam are two adjacent beams in the beam assembly; the first roller assembly 2 and the second roller assembly 4 together constitute a roller device, and in this embodiment, there are eight roller devices, among which four roller devices are arranged at the four corners of one group of beam assemblies, and the other four roller devices are arranged at the four corners of another group of beam assemblies; the first roller assembly 2 and the second roller assembly 4 in the roller device are arranged perpendicular to each other and respectively guide the first vertical side surface and the second vertical side surface of the same main chord 301. Since the first roller assembly 2 and the second roller assembly 4 can be respectively clamped on the first crossbeam and the second crossbeam and are at the same installation height, the first roller assembly 2 and the second roller assembly 4 can support and guide the main chord 301 of the standard section 3 at the same vertical height, avoiding uneven force, ensuring the smooth operation of the roller device, improving the reliability of the roller device, and enabling the roller device to transfer force to the climbing frame body 1 more evenly.

[0037] In one embodiment of the present application, the first roller assembly 2 and the second roller assembly 4 both include:

[0038] A mounting seat 401, one side of the mounting seat 401 is formed with a mounting space 402 for the crossbeam to be inserted laterally;

[0039] The roller 403 is rotatably disposed on the mounting seat 401 and is located at a side of the mounting seat 401 away from the mounting space 402 . A guide surface 404 is formed on the roller 403 .

[0040] Specifically, the installation space 402 is formed on one lateral side of the mounting seat 401, and the roller 403 is arranged on the other lateral side of the mounting seat 401 and opposite to the main chord 301. When installing the first roller assembly 2 and the second roller assembly 4, they can be clamped laterally on the crossbeam, which improves the installation convenience of the first roller assembly 2 and the second roller assembly 4; a rolling surface is formed on the roller 403, and the rolling surface is the guide surface 404. The guide surface 404 on the first roller assembly 2 is used to guide the first vertical side surface of the main chord 301, and the guide surface 404 on the second roller assembly 4 is used to guide the second vertical side surface of the main chord 301. When the standard section 3 moves relative to the climbing frame body 1, the roller 403 rotates relative to the mounting seat 401, and the guide surface 404 supports and guides the vertical side surface of the main chord 301. The above-mentioned first roller assembly 2 and the second roller assembly 4 have the advantages of simple structure and easy installation.

[0041] Furthermore, in order to strengthen the connection tightness between the first roller assembly 2, the second roller assembly 4 and their respective corresponding cross beams, the installer can weld the mounting seat 401 to the cross beam after the mounting seat 401 is clamped on the cross beam, so as to avoid the first roller assembly 2 and the second roller assembly 4 from falling off the first cross beam and the second cross beam respectively, and also avoid the first roller assembly 2 and the second roller assembly 4 from changing position after the installation is completed, thereby further improving the installation effectiveness and reliability of the roller device.

[0042] In one embodiment of the present application, the roller 403 is connected to the mounting seat 401 via a connecting shaft 5 , and the first roller assembly 2 and the second roller assembly 4 both include a stopper 6 for limiting the pivoting of the connecting shaft 5 .

[0043] Specifically, in this embodiment, the connecting shaft 5 can be selected as a pin shaft, and the first roller assembly 2 and the second roller assembly 4 also include a bearing embedded in the roller 403. The connecting shaft 5 is passed through the mounting seat 401, and the bearing sleeve is arranged on the connecting shaft 5 and fixed together with the connecting shaft 5. Since the bearing is a standard part and is not easy to be damaged, the setting of the bearing is beneficial to prolonging the service life of the first roller assembly 2 and the second roller assembly 4. The stopper 6 limits the rotation of the connecting shaft 5 while also limiting the rotation of the inner ring of the bearing to ensure that the bearing can work normally, so that the roller 403 fixed to the outer ring of the bearing can rotate relative to the mounting seat 401.

[0044] In one embodiment of the present application, a notch space is formed on the outer circumference of the connecting shaft 5 , and the stopper 6 is plate-shaped and disposed on the mounting seat 401 , with a portion of the stopper 6 extending laterally into the notch space.

[0045] Specifically, the side end face of the notch space is a vertical plane, part of the stop member 6 extends laterally into the notch space and the side face of the stop member 6 close to the connecting shaft 5 is in contact with the vertical plane. The above arrangement can effectively prevent the connecting shaft 5 from pivoting around its central axis, thereby ensuring that the bearing and roller 403 can work normally.

[0046] In one embodiment of the present application, the stopper 6 is detachably connected to the mounting seat 401. Specifically, a first connection hole is formed on the mounting seat 401, one end of the bolt assembly is clamped on the side end surface of the stopper 6, and the other end passes through the stopper 6 and the first connection hole to form a threaded connection, which is convenient for replacing a damaged mounting seat 401 or stopper 6, and is conducive to further extending the service life of the first roller assembly 2 or the second roller assembly 4.

[0047] In one embodiment of the present application, Figure 3As shown, the mounting base 401 includes a connecting plate 4011 and a first mounting plate 4012 and a second mounting plate 4013 which are distributed in parallel and spaced apart from each other. The roller 403 is arranged on the same side of the first mounting plate 4012 and the second mounting plate 4013 and between the first mounting plate 4012 and the second mounting plate 4013. The first mounting plate 4012 and the second mounting plate 4013 on the other side away from the roller 403 jointly form an installation space 402. The connecting plate 4011 is arranged between the first mounting plate 4012 and the second mounting plate 4013 and is used to connect the first mounting plate 4012 and the second mounting plate 4013.

[0048] Specifically, the first mounting plate 4012 and the second mounting plate 4013 are distributed in parallel and spaced apart in the longitudinal direction, the number of connecting plates 4011 is two, and the longitudinal ends of each connecting plate 4011 are respectively welded to the first mounting plate 4012 and the second mounting plate 4013, and the first mounting plate 4012 and the second mounting plate 4013 are both formed with a second connecting hole on the transverse first side for the connecting shaft 5 to pass through in the longitudinal direction. Therefore, the roller 403 is arranged on the first transverse first side of the first mounting plate 4012 and the second mounting plate 4013, and the installation space 402 is formed on the first transverse second side of the first mounting plate 4012 and the second mounting plate 4013. The above-mentioned mounting seat 401 has a simple structure, is easy to produce and manufacture, and can also reduce the welding workload when welding the mounting seat 401 and the crossbeam, and also ensure that the first roller assembly 2 and the second roller assembly 4 can operate reliably.

[0049] In one embodiment of the present application, a first snap-in groove 4014 and a second snap-in groove 4015 are respectively formed on the first mounting plate 4012 and the second mounting plate 4013 , and the first snap-in groove 4014 , the second snap-in groove 4015 and the space between the first snap-in groove 4014 and the second snap-in groove 4015 together form an installation space 402 .

[0050] Specifically, the first snap-in groove 4014 and the second snap-in groove 4015 are formed with lateral openings on the side away from the roller 403 for the lateral entry of the beam. In the vertical direction, the width of the first snap-in groove 4014 and the width of the second snap-in groove 4015 are consistent with the width of the beam, so that when installing the first roller assembly 2 or the second roller assembly 4, the installation space 402 of the first roller assembly 2 or the second roller assembly 4 is aligned with the beam, and the first roller assembly 2 and the second roller assembly 4 are respectively snap-fitted onto the first beam or the second beam, thereby completing the preliminary installation of the first roller assembly 2 or the second roller assembly 4. The operation is simple, which helps to reduce the labor intensity of the installers.

[0051] In one embodiment of the present application, Figure 2As shown, an adjustment gap 405 for adjusting the installation position of the mounting seat 401 is also formed on the mounting seat 401. The adjustment gap 405 is located on a side of the mounting space 402 close to the roller 403, wherein the width of the adjustment gap 405 ranges from 3 mm to 12 mm.

[0052] Specifically, in actual situations, the manufacturing precision of the climbing frame body 1 is low, and the matching clearance range of the roller 403 and the standard section 3 (or tower body) is 1mm-3mm. Therefore, a certain gap should be reserved when welding the mounting seat 401 and the crossbeam together. When installing the first roller assembly 2 and the second roller assembly 4, the installer changes the width of the adjustment gap 405 according to actual needs and with the help of tooling fixtures, so as to avoid reworking the first roller assembly 2 and the second roller assembly 4 when the roller 403 and the standard section 3 do not match properly, thereby effectively improving the yield rate of the first roller assembly 2 and the second roller assembly 4; further, in this embodiment, the width of the adjustment gap 405 is preferably 10mm, which can not only ensure that the mounting seat 401 has sufficient adjustment gap 405, but also avoid the overall volume of the first roller assembly 2 and the second roller assembly 4 being too large.

[0053] Another embodiment of the present application provides a tower crane, which includes the climbing frame in the above embodiment.

[0054] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A climbing frame, characterized in that: The climbing frame comprises: A climbing frame body (1), wherein the climbing frame body (1) is provided with a first crossbeam (101) and a second crossbeam (102) which are perpendicular to each other; A first roller assembly (2) is mounted on the first crossbeam (101) and is used to guide a first vertical side surface of a main chord (301) of a standard section (3); A second roller assembly (4) is used for guiding the second vertical side surface of the main chord (301), wherein the second roller assembly (4) is mounted on the second cross beam (102) and is at the same installation height as the first roller assembly (2), wherein the first vertical side surface and the second vertical side surface are perpendicular to each other.

2. The climbing frame according to claim 1, characterized in that: The first roller assembly (2) and the second roller assembly (4) both comprise: A mounting seat (401), wherein a mounting space (402) is formed on one side of the mounting seat (401); The roller (403) is rotatably arranged on the mounting seat (401) and is located on a side of the mounting seat (401) away from the mounting space (402), and a guide surface (404) is formed on the roller (403).

3. The climbing frame according to claim 2, characterized in that: An adjustment gap (405) for adjusting the installation position of the installation base (401) is also formed on the installation base (401), and the adjustment gap (405) is located on a side of the installation space (402) close to the roller (403).

4. The climbing frame according to claim 3, characterized in that: The width of the adjustment gap (405) ranges from 3 mm to 12 mm.

5. The climbing frame according to claim 2, characterized in that: The roller (403) is connected to the mounting seat (401) via a connecting shaft (5), and the first roller assembly (2) and the second roller assembly (4) both include a stopper (6) for limiting the pivoting of the connecting shaft (5).

6. The climbing frame according to claim 5, characterized in that: A notch space is formed on the outer peripheral side of the connecting shaft (5); the stopper (6) is plate-shaped and is arranged on the mounting seat (401); a portion of the stopper (6) extends laterally into the notch space.

7. The climbing frame according to claim 6, characterized in that: The stopper (6) is detachably connected to the mounting seat (401).

8. The climbing frame according to claim 2, characterized in that: The mounting seat (401) comprises a connecting plate (4011) and a first mounting plate (4012) and a second mounting plate (4013) which are arranged in parallel and spaced apart from each other. The roller (403) is arranged on the same side of the first mounting plate (4012) and the second mounting plate (4013) and between the first mounting plate (4012) and the second mounting plate (4013). The first mounting plate (4012) and the second mounting plate (4013) on the other side away from the roller (403) jointly form the mounting space (402). The connecting plate (4011) is arranged between the first mounting plate (4012) and the second mounting plate (4013) and is used to connect the first mounting plate (4012) and the second mounting plate (4013).

9. The climbing frame according to claim 8, characterized in that: A first snap-in groove (4014) and a second snap-in groove (4015) are respectively formed on the first mounting plate (4012) and the second mounting plate (4013); the first snap-in groove (4014), the second snap-in groove (4015) and the space between the first snap-in groove (4014) and the second snap-in groove (4015) together form the mounting space (402).

10. A tower crane, characterized in that: The tower crane comprises a climbing frame according to any one of claims 1-9.

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