A wedge-type pushing device

Abstract

The utility model discloses a wedge-type pushing device, comprising a first pushing member and a second pushing member, and also comprising a bidirectional telescopic hydraulic oil cylinder, piston rods on both sides of the bidirectional telescopic hydraulic oil cylinder are respectively connected to the side walls of the first pushing member and the second pushing member, the first pushing member comprises an upper wedge block, a middle wedge block and a lower wedge block, and also comprises a wedge block mounting shell, adopts wedge-type step pushing, and through the friction force conversion between various components, the steel beam is pushed forward to drive the steel beam forward. The wedge-type pushing device has a clever structure, simple manufacture, convenient and flexible construction, and effectively solves the pain points of the original equipment construction.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking equipment, in particular to a wedge-type jacking device. Background Art

[0002] The mobile jacking equipment that is often used at present generally adopts the form of slideway slotted holes, which requires two or more rows of reaction holes to be opened on the slideway beam. The number of reaction holes is large, the processing is difficult, the processing accuracy requirements are high, and the cost is high.

[0003] The wedge-type push device does not need to drill holes on the slide beam. It can drive the steel beam forward by changing the friction coefficient between the front second push piece and the contact surface. The wedge-type push device has an ingenious structure, simple manufacturing, and convenient and flexible construction. It effectively solves the pain points of the original equipment construction. Utility Model Content

[0004] The purpose of the utility model is to provide a wedge-type jacking device to solve the problem proposed in the above-mentioned background technology that the slideway of the current mobile jacking equipment adopts the form of slotted holes, and two or more rows of reaction holes need to be opened on the slideway beam, the number of reaction holes is large, the processing difficulty is large, the processing accuracy requirements are high, and the cost is high.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wedge-type pushing device, which is arranged between the slide beam and the steel beam, including: a first pushing member and a second pushing member, and also including a two-way telescopic hydraulic oil cylinder, the piston rods on both sides of the two-way telescopic hydraulic oil cylinder are respectively connected to the side walls of the first pushing member and the second pushing member, the first pushing member includes an upper wedge block, an intermediate wedge block and a lower wedge block, and also includes a wedge block mounting shell, the large ends of the upper wedge block and the lower wedge block are both facing the piston rod side of the two-way telescopic hydraulic oil cylinder, so that a wedge-shaped space is formed between the upper wedge block and the lower wedge block, the middle wedge block is clamped in the wedge space and its small end faces the large ends of the upper wedge block and the lower wedge block; the outer side of the shell of the wedge block mounting shell A position adjustment member is also provided, one end of which is connected to the small end of the middle wedge block, and the height of the first pushing member is adjusted by telescoping; the bidirectional telescopic hydraulic cylinder is connected to the hydraulic control device, and the spring ejector pin is telescoping under the drive of the hydraulic control device, and the bidirectional telescopic hydraulic cylinder is driven by the hydraulic control device to reciprocate to drive the first pushing member and the second pushing member to move in a straight line; the second pushing member has the same structure as the first pushing member but faces in opposite directions; the friction coefficient between the first pushing member and the slide beam is μ1; the friction coefficient between the second pushing member and the slide beam is μ2; the friction coefficient between the first pushing member and the pad beam is μ3; the friction coefficient between the second pushing member and the pad beam is μ4; wherein μ1=μ4; μ2=μ3, and μ2 is much larger than μ1.

[0006] As a preferred technical solution, the position adjustment member is a spring ejector pin, whose main body is fixed to the outside of the shell. The ejector pin passes through a through hole on the surface of the shell and presses against the small end of the middle wedge block. A return spring is also provided in the main body, and the return spring is initially in a compressed state.

[0007] As a preferred technical solution, the friction coefficient μ1 between the first pushing member and the slide beam; the friction coefficient μ2 between the second pushing member and the slide beam; the friction coefficient μ3 between the first pushing member and the pad beam; and the friction coefficient μ4 between the second pushing member and the pad beam satisfy the following conditions: μ1=μ4=0.08, μ3=μ2=0.3.

[0008] As a preferred technical solution, the wedge block mounting shells of the first pushing member and the second pushing member are both box bodies with an open upper surface, the surface of the upper wedge block is higher than the wedge block mounting shell, and a pad beam is also provided between the steel beam and the upper wedge blocks of the first pushing member and the second pushing member.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The wedge-type jacking device of this scheme adopts wedge-type step-type jacking, and pushes the steel beam forward through the friction conversion between various components to drive the steel beam forward. This wedge-type jacking device has a clever structure, simple production, and convenient and flexible construction. It effectively solves the pain points of the original equipment construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the initial state structure of the second push member of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the second pushing member of the utility model being pushed open by the position adjusting member;

[0014] Figure 4 It is a schematic structural diagram of an initial state of a wedge-type jacking device of the utility model installed on a bracket;

[0015] Figure 5 It is a schematic diagram of the structure of a wedge-type jacking device of the utility model pushing a stroke;

[0016] Figure 6 This is a working condition in which the height of the second jacking member of a wedge-type jacking device of the utility model is lowered;

[0017] Figure 7 The utility model is a schematic structural diagram of the oil cylinder retracting and resetting of a wedge-type jacking device.

[0018] In the figure: 1. first pushing member; 11. upper wedge block; 12. middle wedge block; 13. lower wedge block; 14. wedge block mounting shell; 2. second pushing member; 3. two-way telescopic hydraulic cylinder; 4. position adjustment member; 5. slideway beam; 6. steel beam; 7. cushion beam; 41. ejector pin; 42. return spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 The utility model provides a technical solution: a wedge-type pushing device includes a first pushing member 1 and a second pushing member 2, and also includes a bidirectional telescopic hydraulic cylinder 3, the piston rods on both sides of the bidirectional telescopic hydraulic cylinder 3 are respectively connected to the side walls of the first pushing member 1 and the second pushing member 2, the wedge mounting shells 14 of the first pushing member 1 and the second pushing member 2 are both box bodies with open upper surfaces, the surface of the upper wedge 11 is higher than the wedge mounting shell 14, and a cushion beam 7 is also provided between the steel beam 6 and the upper wedge 11 of the first pushing member 1 and the second pushing member 2. The first push member 1 includes an upper wedge block 11, an intermediate wedge block 12 and a lower wedge block 13, and also includes a wedge block mounting shell 14. The large ends of the upper wedge block 11 and the lower wedge block 13 are both facing the piston rod side of the two-way telescopic hydraulic cylinder 3, so that a wedge-shaped space is formed between the upper wedge block 11 and the lower wedge block 13, and the intermediate wedge block 12 is clamped in the wedge space with its small end facing the large ends of the upper wedge block 11 and the lower wedge block 13; a position adjustment member 4 is also provided on the outer side of the shell of the wedge block mounting shell 14, one end of which is connected to the small end of the intermediate wedge block 12, and the height of the first push member 1 is adjusted by telescoping; the two-way telescopic The hydraulic cylinder 3 is connected to the hydraulic control device, and the spring ejector pin 41 is extended and retracted under the drive of the hydraulic control device. The bidirectional telescopic hydraulic cylinder 3 is reciprocated under the drive of the hydraulic control device to drive the first pushing member 1 and the second pushing member 2 to move linearly; the second pushing member 2 has the same structure as the first pushing member 1 but faces in opposite directions; the friction coefficient between the first pushing member 1 and the slide beam 5; the friction coefficient between the second pushing member 2 and the slide beam 5; the friction coefficient between the first pushing member 1 and the pad beam 7; the friction coefficient between the second pushing member 2 and the pad beam 7; wherein, μ1=μ4=0.08, μ3=μ2=0.3.

[0021] The position adjusting member 4 is a spring ejector pin 41, whose main body is fixed to the outside of the shell. The ejector pin 41 presses against the small end of the middle wedge block 12 through a through hole on the shell surface. A return spring 42 is also arranged in the main body, and the return spring 42 is initially in a compressed state.

[0022] A wedge-type pushing device pushes the steel beam 6 forward by converting the friction between various components. The specific working principle is as follows:

[0023] The friction coefficient between the first push member 1 and the slide beam 5 is μ1; the friction coefficient between the second push member 2 and the slide beam 5 is μ2; the friction coefficient between the first push member 1 and the cushion beam 7 is μ3; the friction coefficient between the second push member 2 and the cushion beam 7 is μ4.

[0024] The deadweight of the steel beam 6 presses on the cushion beam 7, with a load of G;

[0025] When the bidirectional telescopic hydraulic cylinder 3 is started and pushes the front second pushing member 2, the deadweight load G of the steel beam 6 is evenly distributed on the front second pushing member 2, and the front second pushing member 2 bears the load G / 2.

[0026] Through surface processing and applying friction medium, it is possible to make: μ1=μ4=0.08,μ3=μ2=0.3;

[0027] If the oil cylinder pushes the front slider forward, the following conditions must be met:

[0028] Bidirectional telescopic hydraulic cylinder 3 thrust:

[0029] If the second pushing member 2 is fixed and the front slide block moves forward, the following conditions must be met: The friction force between the second pushing member 2 and the slideway beam 5 is:

[0030] After the bidirectional telescopic hydraulic cylinder 3 pushes the first pushing member 1 to drive the steel beam 6 to move forward a stroke, the bidirectional telescopic hydraulic cylinder 3 needs to retract. At this time, the first pushing member 1 needs to be fixed, and the second pushing member 2 follows the bidirectional telescopic hydraulic cylinder 3 to shrink and move forward.

[0031] If the second pushing member 2 is made to retract and move forward following the two-way telescopic hydraulic cylinder 3, the second pushing member 2 will reduce its height through the spring ejector pin 41, and the steel beam 6 will press on the first pushing member 1. The second pushing member 2 will be in an unloaded state. At this time, the two-way telescopic hydraulic cylinder 3 will retract to drive the second pushing member 2 to move forward.

[0032] like Figures 4 to 7 , the pushing movement process is as follows:

[0033] Step 1: Initial working conditions

[0034] The wedge-type jacking device is installed on the slideway beam 5;

[0035] Step 2: Push a travel condition.

[0036] Double telescopic hydraulic cylinder 3 thrust When the two-way telescopic hydraulic cylinder 3 pushes the first pushing member 1 forward by a stroke, the second pushing member 2 is fixed.

[0037] Step 3: The second push member 2 is lowered

[0038] After the bidirectional telescopic hydraulic cylinder 3 retracts with force, the spring ejector pin 41 of the second pushing member 2 pushes the middle wedge block 12 to move leftward, and the overall height of the second pushing member 2 is reduced. The height of the second pushing member 2 is lower than that of the first pushing member 1. At this time, the load of the steel beam 6 is concentrated on the first pushing member 1, and the second pushing member 2 is unloaded. The bidirectional telescopic hydraulic cylinder 3 continues to retract to drive the second pushing member 2 to move forward.

[0039] Step 4: The bidirectional telescopic hydraulic cylinder 3 retracts and returns to the initial working condition

[0040] The bidirectional telescopic hydraulic cylinder 3 retracts, driving the second push member 2 to move forward, and then the spring ejector pin 41 is reset, and the second push member 2 returns to its initial working state;

[0041] The above steps are repeated in sequence to push the steel beam 6 forward and drive the steel beam 6 to move forward.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wedge-type jacking device, which is arranged between a slideway beam (5) and a steel beam (6), characterized in that: include: The first push member (1) and the second push member (2) also include a bidirectional telescopic hydraulic cylinder (3), the piston rods on both sides of the bidirectional telescopic hydraulic cylinder (3) are respectively connected to the side walls of the first push member (1) and the second push member (2), the first push member (1) includes an upper wedge block (11), an intermediate wedge block (12) and a lower wedge block (13), and also includes a wedge block mounting shell (14), the large ends of the upper wedge block (11) and the lower wedge block (13) are both oriented toward the piston rod side of the bidirectional telescopic hydraulic cylinder (3), so that a wedge-shaped space is formed between the upper wedge block (11) and the lower wedge block (13), the intermediate wedge block (12) is clamped in the wedge-shaped space and its small end is oriented toward the large ends of the upper wedge block (11) and the lower wedge block (13); the outer side of the shell of the wedge block mounting shell (14) is also provided with a A position adjustment member (4), one end of which is connected to the small end of the intermediate wedge block (12), and is used to adjust the height of the first push member (1) by telescoping; the bidirectional telescopic hydraulic cylinder (3) is connected to a hydraulic control device, and the bidirectional telescopic hydraulic cylinder (3) is driven by the hydraulic control device to reciprocate to drive the first push member (1) and the second push member (2) to perform linear motion; the second push member (2) has the same structure as the first push member (1) but faces in opposite directions; a cushion beam (7) is also provided between the first push member (1) and the steel beam, and the friction coefficient between the first push member (1) and the slide beam (5) is μ1; the friction coefficient between the second push member (2) and the slide beam (5) is μ2; the friction coefficient between the first push member (1) and the cushion beam (7) is μ3; and the friction coefficient between the second push member and the cushion beam (7) is μ4; Among them, μ1=μ4; μ2=μ3, and μ2 is much larger than μ1.

2. A wedge-type pushing device according to claim 1, characterized in that: The position adjustment member (4) is a spring ejector pin, the main body of which is fixed to the outer side of the shell of the wedge block mounting shell (14). The ejector pin (41) passes through a through hole on the surface of the shell and presses against the small end of the middle wedge block (12). A return spring (42) is also arranged in the main body, and the initial state of the return spring (42) is a compressed state.

3. A wedge-type pushing device according to claim 1, characterized in that: The friction coefficient μ1 between the first pushing member (1) and the slideway beam (5); the friction coefficient μ2 between the second pushing member (2) and the slideway beam (5); the friction coefficient μ3 between the first pushing member (1) and the cushion beam (7); and the friction coefficient μ4 between the second pushing member (2) and the cushion beam (7) satisfy the following conditions: μ1=μ4=0.08, μ3=μ2=0.

3.

4. A wedge-type jacking device according to claim 1, characterized in that: The wedge block mounting shells (14) of the first pushing member (1) and the second pushing member (2) are both box bodies with an open upper surface, the surface of the upper wedge block (11) is higher than the wedge block mounting shell (14), and a cushion beam (7) is also provided between the steel beam (6) and the upper wedge blocks (11) of the first pushing member (1) and the second pushing member (2).

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