Hydraulic clamp

Abstract

The utility model relates to a hydraulic clamp which comprises a hydraulic oil cylinder, a connecting mechanism and two main arms, the two main arms are oppositely installed at the two ends of the connecting mechanism, the middle portions of the two main arms are rotationally connected with the two ends of the connecting mechanism respectively, and the middle portions of the two main arms are in transmission connection through transmission connection. The hydraulic oil cylinder is located between the two main arms, and the two ends of the hydraulic oil cylinder are rotationally connected with one ends of the two main arms respectively. The utility model has the advantages of simple structure, reasonable design, simple construction, good synchronization performance, high efficiency and the like; meanwhile, the clamping device is wide in application range, not only can be used for clamping steel strands and prestressed steel bar anchorage devices, but also can be used in common shaft and pipe part clamping environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel strand, prestressed steel rod connecting equipment technical field, concretely relates to a hydraulic clamp. BACKGROUND

[0002] The existing hydraulic clamp is generally composed of a hydraulic cylinder, main arms and a clamp mouth, the push rod of the hydraulic cylinder is difficult to ensure the synchronous rotation of the two main arms when extending and retracting, the clamping process of the anchor requires the same distance to be squeezed from both ends, the squeezing force is parallel to the thrust of the hydraulic cylinder, so the synchronous rotation of the two main arms must be met, and the common hydraulic clamp cannot solve the problem. SUMMARY

[0003] The utility model provides a hydraulic clamp, aims at solving the problem in prior art.

[0004] The utility model solves the technical problems that the technical scheme is as follows:

[0005] A hydraulic clamp, comprising a hydraulic cylinder, a connecting mechanism and two main arms, two main arms are relatively distributed between the two ends of two connecting plates, and are respectively rotatably connected to the two ends of the two connecting plates.

[0006] Two main arms are respectively rotatably connected to the two ends of the two connecting plates.

[0007] The hydraulic cylinder is located between the two main arms, and the two ends thereof are respectively rotatably connected to the middle parts of the two main arms.

[0008] The two ends of the hydraulic cylinder are respectively rotatably connected to the middle parts of the two main arms.

[0009] The utility model has the advantages that in the use process, the extension and retraction of the hydraulic cylinder drive the rotation of the two main arms, and the connecting mechanism is used to realize the synchronous rotation of the two main arms, so that the operation is convenient.

[0010] The utility model has the advantages of simple structure, reasonable design, simple construction, good synchronous performance, high efficiency and the like, and wide application range, and can be used for clamping the steel strand and the prestressed steel rod anchor and can be used in the clamping environment of general shafts and pipes.

[0011] On the basis of the above technical scheme, the utility model can be further improved as follows.

[0012] Further, the connecting mechanism comprises two connecting plates, two connecting plates are relatively distributed, two main arms are relatively distributed between the two ends of the two connecting plates, and are respectively rotatably connected to the two ends of the two connecting plates.

[0013] Two main arms are respectively rotatably connected to the two ends of the two connecting plates.

[0014] The beneficial effect of adopting the above-mentioned further solution is that during use, the extension and retraction of the hydraulic cylinder can be used to drive...

[0015] The two main booms rotate simultaneously, and the connecting plate enables the two main booms to rotate synchronously, making operation convenient.

[0016] Furthermore, the two connecting plates are each rectangular plate-shaped structures with rounded ends.

[0017] The advantages of adopting the above-mentioned further solution are that the structure is simple, the shape of the two connecting plates is reasonably designed, and it is easy to assemble the two main arms.

[0018] Furthermore, the transmission assembly includes two driving gears and two driven gears, the two driving gears...

[0019] The driving gears are fixedly installed in the middle of opposite sides of the two main arms; the two driven gears are installed opposite each other between the two connecting plates, and they mesh with the two driving gears respectively.

[0020] The beneficial effect of adopting the above-mentioned further solution is that during use, the extension and retraction of the hydraulic cylinder can be used to drive...

[0021] The two main booms rotate synchronously, with two drive gears and two driven gears working together to make operation convenient.

[0022] Furthermore, the two driving gears are sector bevel gears, with their arc-shaped sides distributed opposite each other;

[0023] The passive gears mentioned are bevel gears.

[0024] The advantages of adopting the above-mentioned further scheme are that the structure is simple, the two driving gears are sector bevel gears, and the two driven gears are bevel gears. The sector bevel gears and bevel gears work together to achieve synchronous rotation of the two main arms.

[0025] Furthermore, a mounting base is installed between the two connecting plates, and a mounting bracket is rotatably mounted on the mounting base.

[0026] A drive shaft extends along one end of the connecting plate to the other end; two driven gears are coaxially fixedly sleeved at both ends of the drive shaft.

[0027] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable. The drive shaft is assembled using the mounting base to realize the synchronous rotation of the two passive gears. The two passive gears mesh with the two active gears respectively to realize the synchronous rotation of the two main arms.

[0028] Furthermore, the other ends of the two main arms are fitted with jaws facing each other.

[0029] The beneficial effect of the further scheme is simple structure and reasonable design, two jaws are clamped to workpieces by rotation of two main arms, and operation is convenient.

[0030] Further, two said jaws are oppositely rotatable and installed at the other end of two said main arms.

[0031] The beneficial effect of the further scheme is simple structure, two jaws are rotatable and installed at the other end of two main arms, and adaptive rotation is avoided to better clamp workpieces.

[0032] Further, two said main arms are oppositely provided with two U-shaped openings penetrating two sides, two said jaws are rotatable and installed in two said U-shaped openings.

[0033] Two said jaws are rotatable and installed in two said U-shaped openings.

[0034] The beneficial effect of the further scheme is simple structure, two U-shaped openings at the other end of two main arms are reasonably designed to facilitate assembly of two jaws.

[0035] Further, two sides of the other end of two said main arms are oppositely provided with mounting plates, two said jaws are rotatable and installed between two pairs of said mounting plates.

[0036] Two said jaws are rotatable and installed between two pairs of said mounting plates.

[0037] The beneficial effect of the further scheme is simple structure and reasonable design, two jaws are assembled with the other end of main arms by using a pair of mounting plates, and assembly is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0039] Figure 2 It is a sectional view of A-A direction. Figure 1

[0040] In the drawings, the components represented by each reference numeral are listed as follows:

[0041] 1, hydraulic oil cylinder; 2, main arm; 3, connecting plate; 4, umbrella gear; 5, mounting seat; 6, transmission shaft; 7, jaw; 8, mounting plate; 9, sector bevel gear. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0043] ​In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.The features limited by "first", "second" and the like can explicitly or implicitly include one or more features.In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0044] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.The features limited by "first", "second" and the like can explicitly or implicitly include one or more features.In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0045] The utility model will be described below in detail with reference to the drawings and in combination with the embodiments.

[0046] Embodiment 1

[0047] As Figure 1 and Figure 2 Indicated, the utility model provides a hydraulic clamp, including hydraulic cylinder 1, connecting mechanism and two main arms 2, two the main arm 2 opposite installation in the both ends of connecting mechanism, wherein part respectively with the both ends of connecting mechanism rotatory connection, two the main arm 2 middle part is driven connection through transmission assembly respectively;

[0048] Hydraulic cylinder 1 is located between two the main arm 2, and both ends are rotatory connection with one end of two the main arm

[0049] 2 respectively.

[0050] In the process of using, the extension of hydraulic cylinder 1 drives two main arms 2 to rotate, and the synchronous rotation of two main arms 2 is realized by cooperating with the connecting mechanism, and the operation is convenient.

[0051] Preferably, in the embodiment, one end of each of the two main arms 2 is provided with a U-shaped opening, and two ends of the hydraulic cylinder 1 extend into the two U-shaped openings and are rotatably connected to the two U-shaped openings through rotating shafts.

[0052] The embodiment has simple structure, reasonable design, and advantages of simple construction, good synchronization performance, high efficiency, wide application range, and the like.

[0053] Embodiment 2

[0054] In the embodiment, the connecting mechanism comprises two connecting plates 3,

[0055] The two connecting plates 3 are oppositely distributed, and the two main arms 2 are oppositely distributed between two ends of the two connecting plates 3 and are rotatably connected to the two ends of the two connecting plates 3, respectively.

[0056] In use, the hydraulic cylinder 1 is used to drive the two main arms 2 to rotate, and the connecting plates 3 are used to realize the synchronous rotation of the two main arms 2, so that the operation is convenient.

[0057] Preferably, in the embodiment, the two connecting plates 3 are preferably long strip-shaped plates.

[0058] Embodiment 3

[0059] In the embodiment, the two connecting plates 3 are in the form of rectangular plates, and two ends of each of the two connecting plates 3 are in the form of circular arc structures.

[0060] The scheme has simple structure, and the shape of the two connecting plates 3 is reasonable and facilitates the assembly of the two main arms 2.

[0061] Embodiment 4

[0062] In the embodiment, the transmission assembly comprises two driving gears and two driven gears.

[0063] The two driving gears are oppositely and fixedly installed at the middle portions of the two main arms 2, and the two driven gears are oppositely installed between the two connecting plates 3 and are engaged with the two driving gears, respectively.

[0064] In use, the hydraulic cylinder 1 is used to drive the two main arms 2 to rotate, and the two driving gears and the two driven gears are used to realize the synchronous rotation of the two main arms 2, so that the operation is convenient.

[0065] Embodiment 5

[0066] In this embodiment, the two driving gears are respectively fan-shaped bevel gears 9, and the two driven gears are respectively umbrella-shaped gears 4.

[0067] The arc-shaped edges of the wheels 9 are oppositely distributed.

[0068] The structure of the scheme is simple, the two driving gears are respectively fan-shaped bevel gears 9, and the two driven gears are respectively umbrella-shaped gears 4, the fan-shaped bevel gears 9 and the umbrella-shaped gears 4 effectively cooperate to realize the synchronous rotation of the two main arms.

[0069] Embodiment 6

[0070] In this embodiment, the two connecting plates 3 are respectively provided with mounting seats 5, the mounting seats 5 are rotatably installed with transmission shafts 6, the transmission shafts 6 extend from one end to the other end of the connecting plates 3, and the two driven gears are respectively coaxially fixedly sleeved on the two ends of the transmission shafts 6.

[0071] 3, the mounting seats 5 are rotatably installed with transmission shafts 6, the transmission shafts 6 extend from one end to the other end of the connecting plates 3, and the two driven gears are respectively coaxially fixedly sleeved on the two ends of the transmission shafts 6.

[0072] The structure of the scheme is simple, the design is reasonable, the transmission shafts 6 are assembled by the mounting seats 5 to realize the synchronous rotation of the two driven gears, and the two driven gears are respectively engaged with the two driving gears to realize the synchronous rotation of the two main arms 2.

[0073] Preferably, in this embodiment, the above mounting seat 5 is fixedly installed on the two connecting plates 3, the transmission

[0074] Shaft 6 penetrates mounting seat 5 and is rotatably connected with mounting seat 5.

[0075] In addition, the two driven gears are respectively coaxially fixedly sleeved on the two ends of the transmission shafts 6, the two driving gears are respectively located on one side of the two driven gears, and are respectively engaged with the two driven gears.

[0076] Gears.

[0077] Based on the above scheme, for different specifications of anchor tools (i.e. workpieces), the main arm 2 does not need to be replaced,

[0078] At this time, only the transmission mechanism composed of the connecting plates 3, the fan-shaped bevel gears 9, the umbrella-shaped gears 4 and the transmission shafts 6 needs to be replaced to meet different specifications of workpieces. The length of the bevel gear shaft, i.e. the transmission shaft 6, can be easily adjusted, unlike the traditional scheme of cylindrical straight teeth, which needs to be redesigned with different teeth numbers, which is not as convenient as the present scheme.

[0079] Embodiment 7

[0080] In this embodiment, the other end of the two main arms 2 is oppositely provided with a jaw 7.

[0081] The scheme has simple structure and reasonable design, the two jaws 7 are clamped to the workpiece by the rotation of the two main arms 2, and operation is convenient.

[0082] Embodiment 8

[0083] On the basis of embodiment 7, in the embodiment, the two jaws 7 are rotatably arranged at

[0084] the other ends of the two main arms 2.

[0085] The scheme has simple structure, the two jaws 7 are rotatably arranged at the other ends of the two main arms 2, and adaptive rotation is avoided, so that the workpiece is better clamped.

[0086] Embodiment 9

[0087] On the basis of embodiment 8, in the embodiment, the other ends of the two main arms 2 are oppositely provided with

[0088] U-shaped openings penetrating through the two sides, and the two jaws 7 are rotatably arranged in the two U-shaped openings.

[0089] The scheme has simple structure, and the U-shaped openings at the other ends of the two main arms 2 are reasonably designed, so that the two jaws 7 are conveniently assembled.

[0090] Embodiment 10

[0091] On the basis of any one of embodiments 8 to 9, in the embodiment, the other ends of the two main arms 2

[0092] are oppositely provided with mounting plates 8, and the two jaws 7 are rotatably arranged between the two pairs of mounting plates 8.

[0093] The scheme has simple structure and reasonable design, and the two jaws 7 are assembled between the other ends of the two main arms 2 by using a pair of mounting plates 8, so that assembly is convenient.

[0094] Preferably, in the embodiment, each mounting plate 8 is preferably a flat plate.

[0095] The working principle of the utility model is as follows:

[0096] In the use process, the hydraulic oil cylinder 1 is used to drive the rotation of the two main arms 2, and the synchronous rotation of the two main arms 2 is realized by cooperating with the sector bevel gear 9, the umbrella-shaped gear 4 and the transmission shaft 6, so that operation is convenient.

[0097] The utility model aims at providing a special hydraulic clamp for a pre-stressed steel strand and a pre-stressed steel bar fracture repair internal expansion type anchor device, which has simple structure, convenient construction and good synchronous performance.

[0098] The utility model discloses on the basis of general hydraulic clamp structure, the sector bevel gear is processed on two main arms 2, and two main arms are connected by a bevel gear shaft, and the bevel gear is helical bevel gear, and has the advantages of strong meshing stability and small impact when driving.

[0099] When the oil cylinder starts, the push rod pushes the main arm to rotate, and because of the existence of the bevel gear, the two main arms rotate at the same angular velocity, so that the clamping force of the jaw keeps parallel with the oil cylinder thrust, and the stroke of the two ends is the same.

[0100] The utility model example has the advantages of simple construction, good synchronization performance, high efficiency, wide application range, and can be used for clamping of steel strand and prestressed steel rod anchorages, and can be used in general shaft and pipe part clamping environment.

[0101] It should be noted that all electronic components involved in the utility model are of prior art, and the above-mentioned components are electrically connected with the controller, and the control circuit between the controller and each component is of prior art.

[0102] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0103] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0104] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A hydraulic clamp characterized by: The utility model provides a hydraulic cylinder (1), connecting mechanism and two main arms (2), two main arms (2) opposite installation connecting mechanism both ends, wherein part respectively with connecting mechanism both ends rotary connection, two main arms (2) middle part respectively through transmission assembly transmission connection, The hydraulic cylinder (1) is located between the two main arms (2), and the two ends are respectively rotatably connected with one end of the two main arms (2). The connecting mechanism includes two connecting plates (3), and the two connecting plates (3) are oppositely distributed.

2. The hydraulic clamp of claim 1, wherein: Two main arms (2) oppositely distribute between two connecting plates (3) both ends, wherein part respectively with two connecting plates (3) both ends rotary connection.

3. The hydraulic clamp of claim 2, wherein: Two connecting plates (3) are respectively rectangular plate structure, and both ends are respectively circular arc structure.

4. The hydraulic clamp of claim 2, wherein: The transmission assembly includes two driving gears and two driven gears, two driving gears are oppositely fixedly installed in the middle of the two main arms (2) on the opposite sides, and two driven gears are oppositely installed between two connecting plates (3), and are respectively engaged with two driving gears.

5. The hydraulic clamp of claim 4, wherein: Two driving gears are respectively sector bevel gears (9), and the arc-shaped edges are oppositely distributed.

6. The hydraulic clamp of claim 4, wherein: Two driven gears are respectively umbrella gears (4).

7. Hydraulic clamp according to any of claims 1-6, characterized in that: Two connecting plates (3) between installation mounting seat (5), the mounting seat (5) is rotatably installed with transmission shaft (6), the transmission shaft (6) extends in the direction from one end of the connecting plate (3) to the other end, and two driven gears are coaxially fixedly sleeved on both ends of the transmission shaft (6).

8. The hydraulic clamp of claim 7, wherein: Two main arms (2) the other end oppositely installs jaw (7).

9. The hydraulic clamp of claim 8, wherein: Two jaws (7) are rotatably installed on the other end of two main arms (2).

10. The hydraulic clamp of claim 8, wherein: Two main arms (2) the other end oppositely is equipped with two sides through U-shaped mouth, two jaws (7) are rotatably installed in two U-shaped mouths. Two main arms (2) the other end of two sides is respectively oppositely installed with mounting plate (8), and two jaws (7) are rotatably installed between two pairs of mounting plates (8).

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