Annular hoisting clamp with locking function for assisting spring hoisting

Abstract

The utility model discloses an annular hoisting clamp with a locking function for assisting spring hoisting, which comprises a supporting seat, and the supporting seat is in contact with an air spring and supports the air spring; the lower end of the lifting arm structure is connected with the supporting seat, and the upper end of the lifting arm structure is connected with a lifting ring; the supporting base comprises two supporting base split bodies, the suspension arm structure is provided with a spring bolt, and the suspension arm structure is locked through the spring bolt so as to keep the relative positions of the two supporting base split bodies. The annular hoisting clamp disclosed by the utility model has the characteristics of simplicity, rapidness and safety in hoisting, capability of rapidly unlocking and locking the auxiliary spring and accordance with human engineering.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly, inspection and repair of air springs for CRH3 type multiple units, and particularly relates to an annular lifting fixture with a locking function for use in the disassembly, inspection and repair of air springs for CRH3 type multiple units. Background Art

[0002] When disassembling and inspecting the air spring of CRH3 type multiple units, the disassembled auxiliary spring needs to be lifted for process transfer. The current lifting methods are divided into two types: the first is to lift by a magnetic crane, and the second is to lift by a sling. The lifting method using a magnetic crane requires the auxiliary spring to be turned over, the magnetic crane to be attached to the bottom of the auxiliary spring, and then to be turned over manually after lifting, resulting in waste of labor; while the ordinary sling lifting requires multiple turns of winding and is very easy to cause the auxiliary spring to fall off, with complicated operation and easy to cause safety problems, and cannot meet the operation requirements.

[0003] Therefore, based on the above technical problems, those skilled in the art urgently need to develop an annular lifting fixture with a locking function for use in the disassembly, inspection and repair of air springs for CRH3 type multiple units. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an annular lifting fixture with a locking function for use in the disassembly, inspection and repair of air springs for CRH3 type multiple units. The fixture solves the problems of complicated operation and insufficient safety of the existing lifting methods through a support seat that can be turned over to achieve the locking function.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An annular lifting fixture with a locking function for auxiliary spring lifting of the utility model, the annular lifting fixture includes:

[0007] A support seat, the support seat contacts with the air spring and supports the air spring; and

[0008] A boom structure connected to the support seat, the lower end of the boom structure is connected to the support seat, and the upper end of the boom structure is connected to a lifting ring;

[0009] The support seat includes two support seat sub - bodies, the boom structure is provided with a locking tongue, and the relative position of the two support seat sub - bodies is locked by the locking tongue.

[0010] Further, the support seat sub - body is configured as a circular arc support plate, and the central angle of the circular arc support plate is less than 180°;

[0011] A channel is reserved between the two separated support seats, and the space between the two separated support seats is the clamping and fixing space for the air spring.

[0012] Further, the jib structure includes:

[0013] A first jib and a second jib;

[0014] Both the first jib and the second jib are configured as L-shaped structures;

[0015] The lower end of the first jib is connected to one of the separated support seats, and the lower end of the second jib is connected to the other separated support seat;

[0016] The first jib and the second jib are rotatably connected by a rotating shaft, and the relative distance between the two separated support seats is adjusted by the rotational connection of the first jib and the second jib.

[0017] Further, one end of the first jib where it cooperates with the second jib has a connecting frame, and an end portion of the second jib extends into the connecting frame and is rotatably connected to the first jib through the rotating shaft.

[0018] Further, a sling rod is connected to the lower end of the sling, and the sling rod extends into the connecting frame and is rotatably connected to both the first jib and the connecting frame through the rotating shaft.

[0019] Further, the sling rod and the second jib are of an integrally formed structure, and a locking tongue groove is formed at the transition position between the sling rod and the second jib;

[0020] The connecting frame is rotatably connected with the locking tongue, and the locking tongue can be inserted into the locking tongue groove to maintain the relative position of the first jib and the second jib.

[0021] Further, a plurality of nylon pads are arranged at intervals on the inner side surface of the support seat body, and the air spring is supported by the support seat body through the nylon pads.

[0022] In the above technical solution, a ring-shaped lifting fixture with a locking function for assisting in the lifting of springs provided by the present utility model has the following beneficial effects:

[0023] The ring-shaped lifting fixture of the present utility model is simple and fast in lifting, safe in lifting, can quickly unlock and lock the auxiliary spring, and conforms to the characteristics of ergonomics. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some of the embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a ring-shaped lifting fixture with a locking function for assisting in the lifting of springs disclosed in an embodiment of the present utility model;

[0026] Figure 2 It is an enlarged structural diagram of the locking state of the locking tongue and the locking tongue groove of a ring-shaped lifting fixture with a locking function for assisting in the lifting of springs disclosed in an embodiment of the present utility model.

[0027] Explanation of reference numerals:

[0028] 1. Support disc; 2. Lifting arm structure; 3. Hoisting ring;

[0029] 101. Support disc split body; 102. Channel; 103. Nylon pad;

[0030] 201. First lifting arm; 202. Second lifting arm; 203. Connection frame; 204. Rotating shaft;

[0031] 301. Hoisting ring rod;

[0032] 401. Locking tongue; 402. Locking tongue groove. Detailed implementation manners

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0034] See Figure 1 as shown;

[0035] A ring-shaped lifting fixture with a locking function for assisting in the lifting of springs in this embodiment, the ring-shaped lifting fixture includes:

[0036] A support seat 1, the support seat 1 is in contact with and supports the air spring; and

[0037] A lifting arm structure 2 connected to the support seat 1, the lower end of the lifting arm structure 2 is connected to the support seat 1, and the upper end of the lifting arm structure 2 is connected to the hoisting ring 3;

[0038] The support seat 1 includes two support seat split bodies 101, the lifting arm structure 2 is provided with a locking tongue 401, and the relative positions of the two support seat split bodies 101 are maintained by locking the lifting arm structure 2 with the locking tongue 401.

[0039] Specifically, this embodiment discloses an annular lifting fixture applicable to the lifting of air springs, which is provided with a support seat 1 that contacts and clamps the air spring, a boom structure 2 connected to the support seat 1, and a lifting ring 3 connected to the boom structure 2. Among them, this embodiment also designs a locking tongue 401 that can lock the boom structure 2 to prevent the boom structure 2 from rotating. By the locking function of the locking tongue 401, the relative positions of the two support seat split bodies 101 are maintained, which can effectively avoid the phenomenon of the air spring slipping during lifting, and the safety is higher.

[0040] Preferably, the support seat split body 101 of this embodiment is configured as an arc-shaped support disk, and the central angle of the arc-shaped support disk is less than 180°; a channel 102 is reserved between the two support seat split bodies 101, and the space between the two support seat split bodies 101 is a clamping and fixing space for the auxiliary spring.

[0041] This embodiment further defines the structure of the support seat split body 101 and the relative relationship between the two support seat split bodies 101; the support seat split body 101 is designed as an arc-shaped structure according to the structural characteristics of the air spring. Since a space for the air spring to enter and exit needs to be reserved, the central angle of the support seat split body 101 needs to be less than 180°. In this way, a gap will be reserved between the two support seat split bodies 101, and this gap is the channel 102 reserved for the air spring to enter and exit.

[0042] Preferably, the boom structure 2 of this embodiment includes a first boom 201 and a second boom 202; both the first boom 201 and the second boom 202 are configured as L-shaped structures; the lower end of the first boom 201 is connected to one of the support seat split bodies 101, and the lower end of the second boom 202 is connected to the other support seat split body 101; the first boom 201 and the second boom 202 are rotatably connected through a rotating shaft 204, and the relative distance between the two support seat split bodies 101 is adjusted by the rotational connection of the first boom 201 and the second boom 202.

[0043] Among them, in order to achieve the rotational connection between the first boom 201 and the second boom 202, the first boom 201 and the second boom 202 of this embodiment have a connection frame 203 at the mating end. The end part of the second boom 202 extends into the connection frame 203 and is rotatably connected to the first boom 201 through a rotating shaft 204.

[0044] This embodiment further defines the specific structure of the boom structure 2. The boom structure 2 includes a first boom 201 and a second boom 202, and the end of the first boom 201 is provided with a connection frame 203 that is rotatably connected to the second boom 202 through a rotating shaft 204.

[0045] Preferably, a sling rod 301 is connected to the lower end of the sling 3 in this embodiment. The sling rod 301 extends into the connection frame 203 and is rotatably connected to both the first lifting arm 201 and the connection frame 203 through a rotating shaft 204.

[0046] The sling rod 301 and the second lifting arm 202 of this embodiment are of an integrally formed structure, and a locking tongue groove 402 is formed at the transition position between the sling rod 301 and the second lifting arm 202; a locking tongue 401 is rotatably connected to the connection frame 203, and the locking tongue 401 can be inserted into the locking tongue groove 402 to maintain the relative positions of the first lifting arm 201 and the second lifting arm 202.

[0047] In the above technical solution, a ring-shaped lifting fixture with a locking function for assisting in the lifting of springs provided by the present utility model has the following beneficial effects:

[0048] The ring-shaped lifting fixture of the present utility model is simple and fast in lifting, safe in lifting, can quickly unlock and lock the auxiliary spring, and conforms to the characteristics of ergonomics.

[0049] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A ring lifting fixture with a locking function for assisting in the lifting of springs, characterized in that, The annular lifting fixture includes: A support base (1) that contacts and supports the air spring; and A boom structure (2) connected to the support base (1), with the lower end of the boom structure (2) connected to the support base (1) and the upper end of the boom structure (2) connected to a lifting ring (3); The support base (1) includes two support base sub - bodies (101), and the boom structure (2) is provided with a locking tongue (401). The boom structure (2) is locked by the locking tongue (401) to maintain the relative position of the two support base sub - bodies (101).

2. The annular lifting fixture with a locking function for assisting in the lifting of springs according to claim 1, characterized in that, The support base sub - body (101) is configured as an arc - shaped support disc, and the central angle of the arc - shaped support disc is less than 180°; A channel (102) is reserved between the two support base sub - bodies (101), and the space between the two support base sub - bodies (101) is a clamping and fixing space for the air spring.

3. The annular lifting fixture with a locking function for assisting in the lifting of springs according to claim 2, characterized in that, The boom structure (2) includes: A first boom (201) and a second boom (202); Both the first boom (201) and the second boom (202) are configured as L - shaped structures; The lower end of the first boom (201) is connected to one of the support base sub - bodies (101), and the lower end of the second boom (202) is connected to the other support base sub - body (101); The first boom (201) and the second boom (202) are rotatably connected by a rotating shaft (204). The relative distance between the two support base sub - bodies (101) is adjusted by the rotational connection of the first boom (201) and the second boom (202).

4. A ring-shaped lifting fixture with a locking function for assisting in spring lifting according to claim 3, characterized in that, One end of the first boom (201) that cooperates with the second boom (202) has a connection frame (203). The end part of the second boom (202) extends into the connection frame (203) and is rotatably connected to the first boom (201) through the rotating shaft (204).

5. The annular lifting fixture with a locking function for assisting in the lifting of springs according to claim 4, characterized in that, The lower end of the lifting ring (3) is connected with a lifting ring rod (301). The lifting ring rod (301) extends into the connection frame (203) and is rotatably connected to both the first boom (201) and the connection frame (203) through the rotating shaft (204).

6. The annular lifting fixture with a locking function for assisting in the lifting of springs according to claim 5, characterized in that, The lifting ring rod (301) and the second boom (202) are of an integrally formed structure, and a locking tongue groove (402) is formed at the transition position between the lifting ring rod (301) and the second boom (202); The connection frame (203) is rotatably connected with the locking tongue (401). The locking tongue (401) can be embedded into the locking tongue groove (402) to maintain the relative position of the first boom (201) and the second boom (202).

7. The annular lifting fixture with a locking function for assisting in the lifting of springs according to claim 2, wherein A plurality of nylon pads (103) are arranged at intervals on the inner side surface of the support base sub - body (101). The support base sub - body (101) supports the air spring through the nylon pads (103).

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