Portal crane brake

Abstract

Compared with the prior art, the portal crane brake disclosed by the utility model has the following beneficial effects that a walking track can be clamped and locked through the clamping assembly when the crane stops, and a certain limiting force can be exerted on the portal crane through the clamping assembly after the walking track is locked, so that the phenomenon of slipping of the crane is reduced, the safety is improved, and the service life of the portal crane is prolonged. Comprising a supporting body, a second shaft rotationally arranged on the supporting body and a clamping assembly rotationally arranged on the second shaft, the clamping assembly comprises a locking screw, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged in parallel in a spaced mode, and a guide hole allowing the locking screw to penetrate through is formed in the first clamping plate; and a threaded hole in threaded connection with the locking screw rod is formed in the second clamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of crane equipment, in particular to a gantry crane brake. Background Art

[0002] The gantry crane includes two parallel tracks arranged at intervals on the ground, two legs arranged on the tracks, and a load-bearing main beam arranged on the legs. When moving horizontally, the driving motor drives the driving wheels in contact with the tracks to rotate, and the force for horizontal moving is provided by the friction between the driving wheels and the tracks. During use, it was found that when the crane was stopped, the driving motor connected to the driving wheel was powered off. At this time, the resistance of the crane along the track was small. When encountering strong winds, the crane would be blown by the strong wind and move along the track, which posed a great safety hazard. Utility Model Content

[0003] The purpose of this utility model is to solve the above problems and provide a gantry crane brake.

[0004] To achieve the above-mentioned purpose, the technical solution of the present utility model is: a gantry crane brake, comprising:

[0005] A supporting body, a second axis rotatably set on the supporting body, and a clamping assembly rotatably set on the second axis, the clamping assembly includes a locking screw and a first clamping plate and a second clamping plate arranged in parallel and spaced apart, the first clamping plate is provided with a guide hole for the locking screw to pass through, and the second clamping plate is provided with a threaded hole threadedly connected to the locking screw.

[0006] Furthermore, the first clamping plate and the second clamping plate each include a clamping end and a connecting end that cooperates with the second shaft, and the connecting end is provided with a strip-shaped hole along the length direction.

[0007] Furthermore, it also includes at least one guide shaft, and the first clamping plate and the second clamping plate are both provided with a guide hole that cooperates with the guide shaft.

[0008] Furthermore, a limiting end plate is provided at one end of the guide shaft, and a limiting member is provided at the other end, which is located between the first clamping plate and the second clamping plate.

[0009] Furthermore, the other end of the guide shaft is provided with an inserting through hole, and the limiting member is a limiting pin inserted into the inserting through hole.

[0010] Furthermore, a support spring is provided between the first clamping plate and the second clamping plate, and the support spring can provide an elastic force to the first clamping plate and the second clamping plate to move away from each other.

[0011] Furthermore, along the length direction of the first clamping plate and the second clamping plate, the guide shafts include two symmetrically arranged on both sides of the locking screw, and the two guide shafts are arranged parallel to the locking screw.

[0012] Furthermore, the support spring includes two support springs respectively sleeved on the outside of the two guide shafts.

[0013] The gantry crane brake disclosed by the utility model has the following beneficial effects compared with the prior art: it can clamp and lock the walking track through the clamping assembly when the crane is stopped, and after locking, it can exert a certain limiting force on the gantry crane through the clamping assembly, thereby reducing the phenomenon of crane slippage and improving safety. The utility model includes: a support body, a second shaft rotatably set on the support body, and a clamping assembly rotatably set on the second shaft, the clamping assembly includes a locking screw and a first clamping plate and a second clamping plate arranged in parallel and spaced apart, the first clamping plate is provided with a guide hole for the locking screw to pass through, and the second clamping plate is provided with a threaded hole threadedly connected to the locking screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a gantry crane brake in this utility model. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the overall structure of a gantry crane brake in this utility model. Figure 2 .

[0016] Figure 3 This is a structural schematic diagram of a gantry crane brake according to the present invention, in which the support body and the clamping assembly are in a stored state.

[0017] Figure 4 This is a structural schematic diagram of a gantry crane brake according to the present invention, wherein the support body and the clamping assembly are in a working state.

[0018] Figure 5 This is a side structural schematic diagram of a gantry crane brake according to the present invention, showing a supporting body and a clamping assembly in a retracted state.

[0019] Figure 6 The utility model is a structural schematic diagram of a gantry crane brake clamping assembly.

[0020] Figure 7 The utility model is a side structural schematic diagram of a clamping assembly in a gantry crane brake.

[0021] Figure 8 This is a schematic diagram of the exploded structure of the first shaft in a gantry crane brake according to the present invention.

[0022] In the figure: 1. cover body; 11. pin shaft; 2. support body; 21. second axis; 210. second sleeve; 22. mounting bevel; 23. first axis; 231. inner rod; 232. sleeve; 233. locking bolt; 234. through hole; 235. threaded hole; 3. clamping assembly; 30. clamping end; 301. strip hole; 31. first clamping plate; 310. threaded hole; 32. second clamping plate; 33. guide shaft; 330. limit end plate; 331. limit pin; 332. plug-in through hole; 34. locking screw; 340. threaded end; 341. head; 35. support spring. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0024] Please refer to Figure 1-5 The technical solution of the utility model is: a gantry crane brake, comprising:

[0025] The support body 2, the second shaft 21 rotatably arranged on the support body 2, and the clamping assembly 3 rotatably arranged on the second shaft 21, the clamping assembly includes a locking screw 34 and a first clamping plate 31 and a second clamping plate 32 arranged in parallel and spaced apart. The first clamping plate 31 is provided with a guide hole for the locking screw to pass through, and the second clamping plate 32 is provided with a threaded hole 310 threadedly connected to the locking screw.

[0026] Specifically, refer to Figure 3 The support body provided in the present application is a U-shaped bending part, and the clamping assembly 3 is arranged between the bending parts. The two ends of the second shaft 21 are rotatably connected to the two side plates of the bending part, and the ends of the first clamping plate and the second clamping plate are rotatably connected to the second shaft 21. In actual use, the bending part can be connected to the bottom of the leg of the gantry crane. The bending part also includes a connecting plate located between the two side plates. When installing, the connecting plate is usually set vertically and welded to the bottom of the leg by welding. After installation, the second shaft 21 is spaced apart from the walking track below, and the length of the first clamping plate and the second clamping plate is greater than that of the second shaft. The distance between the second axis 21 and the walking track is set horizontally, and the two side plates of the bending part are respectively located on both sides of a walking track of the crane. Through this setting, when the gantry crane is stopped, the first clamping plate and the second clamping plate are rotated around the second axis 21 so that the clamping ends are located on both sides of the walking track, and then the locking screw 34 is rotated and locked into the threaded hole 310, thereby pushing the first clamping plate and the second clamping plate to move closer to each other and locking the walking track. After locking, the clamping assembly can exert a certain limiting force on the gantry crane, thereby reducing the phenomenon of crane slippage and improving safety.

[0027] Further, as a preferred embodiment, refer to Figure 6 The first and second clamping plates 31 and 32 each include a clamping end 30 and a connecting end that mates with the second shaft 21. The connecting ends are provided with strip-shaped holes 301 along their lengths. Specifically, by providing the strip-shaped holes 301 and engaging with the second shaft 21, the first and second clamping plates can be fine-tuned in their lengths, ensuring that the clamping ends of the first and second clamping plates can be properly clamped in place on the travel track, ensuring effective positioning.

[0028] Further, as a preferred embodiment, refer to Figure 3 The clamping ends of the first clamping plate and the second clamping plate are both provided with protrusions in the direction of each other. Since the cross-section of the walking rail is similar to that of the railway rail, including the rail head, rail waist and rail bottom, by providing the protrusions, the protrusions can be clamped under the rail head, thereby ensuring the fixing effect.

[0029] Furthermore, as a preferred embodiment, mounting bevel grooves 22 are correspondingly provided on both side walls of the supporting body, and both ends of the first shaft 23 are slidably matched with the mounting bevel grooves 22. Through this arrangement, by controlling the length and height of the mounting bevel grooves 22, when the first axis slides to the top of the mounting bevel groove, the first clamping plate and the second clamping plate can rotate the clamping end to between the two side plates of the bending part when rotating around the second axis, and are in a retracted state, and then the first shaft 23 is released, and the first shaft can slide down to the bottom end of the mounting bevel groove under the action of gravity, with reference to FIG. Figure 3 At this time, the upper end of the clamping assembly can be limited by the first shaft 23 and stored in the bending part. It is in the stored state and will not hinder the normal operation of the crane. When you want to lock the crane, pull the first shaft 23 up to the upper end of the mounting chute 22. At this time, the first shaft 23 does not limit the first clamping plate and the second clamping plate, and the first clamping plate can be rotated to Figure 4 The working status shown.

[0030] Further, refer to Figure 8The first shaft comprises an inner rod 231 and a sleeve 232 sleeved on the outer periphery of the inner rod, a threaded hole 235 is provided in the middle position of the inner rod, and a through hole 234 is provided in the middle position of the sleeve. When the first shaft is set on the support body, the sleeve 232 is first set between the two side plates of the bending part, and then the inner rod 231 is passed through the mounting bevel, the sleeve and another mounting bevel in sequence, and then the locking bolt is extended into the through hole 234 and locked into the threaded hole 235 to lock the inner rod and the sleeve, wherein the length of the sleeve is less than the distance between the inner side surface of the bending part, and the length difference between the two is 1-2 mm, and the length of the inner rod is greater than the distance between the outer side surfaces of the two side plates of the bending part. Through this setting method, the two ends of the inner rod are matched with the mounting bevel guide, the sleeve is matched with the axial limit of the two side plates of the bending part, and the length of the sleeve and the matching clearance between the two side plates of the bending part are small, so the swing amount of the sleeve can be limited, and the two ends of the first shaft can be prevented from being separated from the support body.

[0031] Further, as a preferred embodiment, refer to Figure 6 , further comprising at least one guide shaft 33, wherein the first clamping plate 31 and the second clamping plate 32 are both provided with guide holes for guiding and cooperating with the guide shaft 33. Specifically, the structure of the clamping assembly is as follows Figure 6 As shown, by setting a guide shaft 33 to cooperate with the first clamping plate and the second clamping plate, the first clamping plate and the second clamping plate can be driven to move relative to each other to guide the first clamping plate and the second clamping plate, ensuring that the first clamping plate and the second clamping plate move in parallel, thereby ensuring that the clamping end can effectively close and clamp and effectively open.

[0032] Further, as a preferred embodiment, refer to Figure 6 、 Figure 7 The guide shaft 33 is provided with a limit end plate 330 at one end and a limit member at the other end, which is located between the first clamping plate 31 and the second clamping plate 32. Specifically, by providing the limit end plate and the limit member at both ends of the guide shaft 33, the guide shaft can be axially limited to prevent the guide shaft from falling off.

[0033] Further, as a preferred embodiment, reference is made to ±6, Figure 7 The other end of the guide shaft 33 is provided with a plug-in through hole 332, and the limiting member is a limiting pin inserted into the plug-in through hole 332. Specifically, through this arrangement, the limiting pin can be removed from and installed with the guide shaft, and the limiting end plate 330 is integrally provided with the guide shaft.

[0034] Further, as a preferred embodiment, reference is made to, Figure 6 、 Figure 7A support spring 35 is provided between the first and second clamping plates 31 and 32. The support spring can provide an elastic force to move the first and second clamping plates away from each other. Specifically, the support spring can resist the elastic force of the support spring when the first and second clamping plates are locked by the locking screw 34. The first and second clamping plates lock the running track. When releasing the track, the locking screw 34 is loosened, and the elastic force of the support spring can push the first and second clamping plates apart to achieve an automatic release effect, which is more convenient to use.

[0035] Furthermore, as a preferred embodiment, along the length direction of the first clamping plate and the second clamping plate, the guide shafts 33 include two symmetrically arranged on both sides of the locking screw 34, and the two guide shafts 33 are arranged parallel to the locking screw 34. By arranging the two guide shafts symmetrically about the locking screw 34, a better guiding effect can be achieved.

[0036] Further, in some embodiments, as a preferred embodiment, reference is made to Figure 1 、 Figure 2 A pin 11 is provided on the top of the support body 2, and the pin is rotatably connected to the cover body 1. The cover body 1 can rotate around the pin 11 and can Figure 1 、 Figure 2 The brake can be protected in the state shown and the state of being rotated 90° upward by setting a cover to achieve rain and dustproof effects. It should be noted that when the cover 1 is provided, when the connecting plate of the bending part is connected to the crane, it is necessary to ensure that there is a certain gap between the upper end of the bending part and the crane to avoid the upper end of the cover, thereby ensuring that the cover can rotate freely.

[0037] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A gantry crane brake, characterized in that: include: A support body (2), a second shaft (21) rotatably arranged on the support body (2), and a clamping assembly (3) rotatably arranged on the second shaft (21), the clamping assembly comprising a locking screw (34) and a first clamping plate (31) and a second clamping plate (32) arranged in parallel and spaced apart, the first clamping plate (31) being provided with a guide hole for the locking screw to pass through, and the second clamping plate (32) being provided with a threaded hole (310) threadedly connected to the locking screw.

2. A gantry crane brake according to claim 1, characterized in that: The first clamping plate (31) and the second clamping plate (32) both comprise a clamping end (30) and a connecting end that cooperates with the second shaft (21), and the connecting end is provided with a strip-shaped hole (301) along the length direction.

3. The gantry crane brake according to claim 1, characterized in that: It also includes at least one guide shaft (33), and the first clamping plate (31) and the second clamping plate (32) are both provided with a guide hole that is matched with the guide shaft (33).

4. A gantry crane brake according to claim 3, characterized in that: A limiting end plate (330) is provided at one end of the guide shaft (33), and a limiting member is provided at the other end, and is located between the first clamping plate (31) and the second clamping plate (32).

5. The gantry crane brake according to claim 4, characterized in that: The other end of the guide shaft (33) is provided with a plug-in through hole (332), and the limiting member is a limiting pin plugged into the plug-in through hole (332).

6. The gantry crane brake according to claim 4, characterized in that: A support spring (35) is provided between the first clamping plate (31) and the second clamping plate (32), and the support spring is capable of providing an elastic force to the first clamping plate and the second clamping plate to move in a direction away from each other.

7. A gantry crane brake according to claim 6, characterized in that: Along the length direction of the first clamping plate and the second clamping plate, the guide shaft (33) includes two guide shafts (33) symmetrically arranged on both sides of the locking screw (34), and the two guide shafts (33) are arranged parallel to the locking screw (34).

8. The gantry crane brake according to claim 7, characterized in that: The support spring comprises two support springs which are respectively sleeved on the outside of the two guide shafts.

Images