Rail Clamp

Abstract

The present invention provides a track clamp, including a clamping seat, a connecting seat and an anti-hook wheel seat, baffles are provided on both sides of the clamping seat, an "X"-shaped cavity is formed between the baffles on both sides, a wedge is provided in the cavity formed by the baffles on both sides, the wedge is provided with an inclined surface, the inclined surface of the wedge contacts the inclined surface of the inner wall of the cavity formed by the baffles, the other side of the inclined surface of the wedge is a working surface, and the working surface is used to contact the side of the track; the connecting seat is fixedly connected to the clamping seat, the connecting seat is located at least one end of the clamping seat, and the connecting seat is used to connect with a driving mechanism; the anti-hook wheel seat is fixedly connected to the connecting seat, the anti-hook wheel seat is located below the connecting seat, and anti-hook wheels are provided on both sides of the anti-hook wheel seat, and the anti-hook wheels are used to hook on the side and lower part of the track. The combination of the clamping seat and the anti-hook wheel seat is set to prevent the equipment from overturning. The structure of the four wedges can realize bidirectional fixation, which is particularly suitable for large-scale jacking and lifting equipment, such as bridge jacking construction, large climbing formwork, stair climbing machine construction and other working conditions.

Description

Technical Field

[0001] The invention relates to a locking and fixing device, in particular to a rail clamp. Background Art

[0002] During the construction process, some equipment or components need to move along the track. During the movement, the equipment or components are fixed. Usually, a track clamp is used as a fixing component. In the track clamp, a wedge block is a more common structure. For example, the structures in CN 112897336 A, CN 111674861 A and CN 213707535 U. However, the above structure can only achieve fixation during unidirectional movement, which is inconvenient to use. A fully automatic bidirectional hydraulic track clamp is recorded in CN 106567550 A, in which a bidirectional wedge block is used to achieve fixation, wherein the wedge block is driven to wedge tight by the opening and closing action of the inclined wedge sliding cylinder. This scheme has the following defects: first, the fixing action of the track clamp is driven by the inclined wedge sliding cylinder, that is, when the inclined wedge sliding cylinder fails even on one side, it may cause a major safety accident. Second, the structure is relatively complex, especially during the fixing process, the shell is subjected to a large force, and the overly complex structure leads to an increase in volume. Third, the track clamp needs to be in continuous motion during the jacking construction and climbing formwork construction. For example, after a jacking or lifting action, the track clamp needs to be loosened during the retraction of the cylinder, and the track clamp needs to be clamped during the jacking or lifting action. Especially when controlling a large-scale jacking or lifting device cluster, it is difficult to synchronize the positions of multiple inclined wedge sliding cylinders to ensure the synchronization of the positions of the track clamps. Fourth, the control components of the inclined wedge sliding cylinders are added, that is, each jacking requires the control of the actions of the two inclined wedge sliding cylinders, which increases the control difficulty. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a rail clamp which can realize the action of locking the rail with a relatively simplified structure and can avoid the overturning of the equipment. In a preferred solution, the control difficulty can also be reduced in the working condition of facilitating continuous jacking and jacking.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a rail clamp, comprising a clamping seat, a connecting seat and an anti-hook wheel seat, baffles are arranged on both sides of the clamping seat, an "X"-shaped cavity is formed between the baffles on both sides, a wedge is arranged in the cavity formed by the baffles on both sides, the wedge is provided with an inclined surface, the inclined surface of the wedge contacts the inclined surface of the inner wall of the cavity formed by the baffle, the other side of the wedge inclined surface is a working surface, and the working surface is used to contact the side of the track;

[0005] The connecting seat is fixedly connected to the clamping seat, the connecting seat is located at at least one end of the clamping seat, and the connecting seat is used to connect to the driving mechanism;

[0006] The reverse hook wheel seat is fixedly connected to the connecting seat, the reverse hook wheel seat is located below the connecting seat, and reverse hook wheels are arranged on both sides of the reverse hook wheel seat, and the reverse hook wheels are used to hook on the lower side of the track.

[0007] In a preferred solution, there are two connecting seats, which are respectively located at the two ends of the clamping seat, and there are at least two corresponding anti-hook wheel seats, which are respectively located below the connecting seats;

[0008] There are four wedge blocks, two on each side, and the small ends of the two wedge blocks are arranged opposite to each other.

[0009] In a preferred solution, a friction block is provided at the position where the baffle plate contacts the wedge block. The friction block is made of wear-resistant material and is fixedly connected to the baffle plate by a plurality of screws.

[0010] In a preferred solution, both ends of the cavity formed by the baffle are further provided with adjusting nuts, and a spring is provided between the adjusting nut and the wedge block, and the spring is used to pre-tighten the wedge block.

[0011] In a preferred solution, a limit screw is further provided, the limit screw passes through the adjusting nut and the spring to contact the wedge block, and the limit screw is threadedly connected to the adjusting nut.

[0012] In the preferred scheme, an auxiliary wedge-locking block is provided on the working surface of the wedge block. The auxiliary wedge-locking block is made of flexible friction material. A guide hole is also provided in the wedge block. The pull rod is slidably connected to the guide hole. A force transmission wedge block is provided on the back side of the auxiliary wedge-locking block. An inverted inclined groove is provided on the pull rod. The sliding of the pull rod causes the auxiliary wedge-locking block to protrude from the working surface of the wedge block through the force transmission wedge block.

[0013] In a preferred solution, both the inverted inclined groove and the auxiliary wedge-locking block are provided with inclined surfaces that slide against each other, and when the pull rod moves toward the middle direction of the two wedge blocks, the auxiliary wedge-locking block protrudes from the working surfaces of the wedge blocks.

[0014] In a preferred solution, a ridge plate is provided on the clamping seat, the ridge plate is connected to the bottom plate, a plurality of guide grooves are provided on the bottom plate, a guide pin is fixed on the wedge block, and the guide pin slides in the guide groove;

[0015] Two sliding grooves are also arranged on the bottom plate, and the two ends of the connecting rod pass through the sliding grooves and are respectively connected with the pull rods on both sides.

[0016] In the preferred solution, a driving groove is provided on the spine plate, the two ends of the connecting rod are connected by a connecting rod, the connecting rod is connected to the driving rod, and the end of the driving rod passes through the electromagnet and is connected to the armature, which is used to drive the pull rod to slide along the guide hole through the electromagnet.

[0017] In the preferred solution, a driving groove is provided on the spine plate, the two ends of the connecting rod are connected by a connecting rod, the connecting rod is connected to the driving rod, the end of the driving rod is connected to the electric push rod, and the electric push rod is used to drive the pull rod to slide along the guide hole.

[0018] The present invention provides a rail clamp, which has the following beneficial effects by adopting the above structure:

[0019] 1. The combination of the clamping seat and the reverse hook wheel seat enables the clamping seat to reverse hook the track during the process of clamping the track to prevent the equipment from overturning.

[0020] 2. The structure with four wedges and symmetrical arrangement can realize two-way fixation, and the force is reliable without generating lateral force. It is especially suitable for large-scale jacking and lifting equipment, such as bridge jacking construction, large climbing formwork, stair climbing machine construction and other working conditions.

[0021] 3. The structure of the adjusting nut and spring can adjust the preload of the wedge block, thereby adjusting the length of the starting working stroke, which can make the starting working stroke shorter. The starting working stroke refers to the stroke from starting to full locking. In cluster control, the shorter the starting working stroke, the higher the cluster control accuracy.

[0022] 4. The pull rod provided cooperates with the force transmission wedge block and the auxiliary wedge tightening block to further shorten the starting working stroke, so that the wedge block can be wedged tighter more quickly.

[0023] 5. The electromagnet structure and the electric push rod cooperate with the pull rod structure to realize automatic control of locking. In particular, multiple one-way locking can be achieved with only one operation, which greatly reduces the control difficulty, especially the difficulty of cluster control, and the starting working stroke is short. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 It is a stereogram of the present invention.

[0026] Figure 2 It is the front view of the present invention.

[0027] Figure 3 It is a left view of the present invention.

[0028] Figure 4 It is a top view of the present invention.

[0029] Figure 5 It is a cross-sectional schematic diagram of the clamping seat of the present invention.

[0030] Figure 6 It is a top view of another preferred embodiment of the present invention.

[0031] Figure 7 This is a schematic cross-sectional view of a clamping seat according to another preferred embodiment of the present invention.

[0032] Figure 8This is a front view of a clamping seat according to another preferred embodiment of the present invention.

[0033] Fig. 9 This is a front view of a clamping seat according to another preferred embodiment of the present invention.

[0034] In the figure: clamping seat 1, ridge plate 101, guide groove 102, guide pin 103, limit screw 104, adjusting nut 105, spring 106, friction block 107, wedge block 108, bottom plate 109, slide groove 110, connecting rod 111, pull rod 112, guide hole 113, auxiliary wedge block 114, force transmission wedge block 115, inverted inclined groove 116, connecting rod 117, electromagnet 118, armature 119, drive groove 120, electric push rod 121, drive rod 122, working surface 123, connecting seat 2, drive mechanism 3, track 4, baffle 5, anti-hook wheel seat 6, anti-hook wheel 61. DETAILED DESCRIPTION

[0035] Embodiment 1:

[0036] like Figures 1 to 4 A rail clamp includes a clamping seat 1, a connecting seat 2 and an anti-hook wheel seat 6, baffles 5 are provided on both sides of the clamping seat 1, an "X"-shaped cavity is formed between the baffles 5 on both sides, a wedge 108 is provided in the cavity formed by the baffles 5 on both sides, the wedge 108 is provided with an inclined surface, the inclined surface of the wedge 108 contacts the inclined surface of the inner wall of the cavity formed by the baffle 5, the other side of the inclined surface of the wedge 108 is a working surface 123, and the working surface 123 is used to contact the side of the track 4;

[0037] The connecting seat 2 is fixedly connected to the clamping seat 1. The connecting seat 2 is located at at least one end of the clamping seat 1. The connecting seat 2 is used to connect to the driving mechanism 3.

[0038] like Figure 2 , 3 In the figure, the reverse hook wheel seat 6 is fixedly connected to the connecting seat 2 , and the reverse hook wheel seat 6 is located below the connecting seat 2 . Reverse hook wheels 61 are provided on both sides of the reverse hook wheel seat 6 , and the reverse hook wheels 61 are used to hook on the lower side of the track 4 .

[0039] The preferred solution is Figures 1 to 5 There are two connecting seats 2, which are respectively located at the two ends of the clamping seat 1, and there are at least two corresponding anti-hook wheel seats 6, which are respectively located below the connecting seats 2;

[0040] like Figure 5 In the embodiment, there are four wedge blocks 108, two wedge blocks 108 on each side, and the small ends of the two wedge blocks 108 are arranged opposite to each other. Figure 5 As shown in , the thinner ends of the two wedges are close to each other. With this structure, the two-way locking of the rail clamp can be achieved, that is, no matter which direction it moves, the rail clamp can be locked with the track.

[0041] Embodiment 2:

[0042] Based on Example 1, the preferred solution is as follows Figure 5 In the embodiment, a friction block 107 is provided at the position where the baffle plate 5 contacts the wedge block 108. The friction block 107 is made of wear-resistant material, such as wear-resistant rubber or wear-resistant steel block, such as high-chrome steel. The friction block 107 is fixedly connected to the baffle plate 5 by a plurality of screws. With this structure, the service life of the parts that are difficult to replace can be reduced. The wedge block 108 is correspondingly easy to replace.

[0043] Embodiment 3:

[0044] Based on Example 1 or 2, a preferred solution is as follows Figure 5 In the embodiment, adjusting nuts 105 are provided at both ends of the cavity formed by the baffle 5, and springs 106 are provided between the adjusting nuts 105 and the wedge block 108, and the springs 106 are used to pre-tighten the wedge block 108. With this structure, the starting working stroke can be shortened as much as possible by adjusting the pre-tightening force, and the starting working stroke refers to the stroke generated from starting to full locking. Moreover, the pre-tightening force adjustment of the adjusting nut 105 can also control the rail clamp to achieve one-way locking, which is very effective in the working condition of pushing. The specific working process is to tighten the adjusting nut 105 at the end opposite to the pushing direction, such as Figure 5 The left side adjusting nut 105 is tightened, and the adjusting nut 105 at the other end is loosened. Figure 5 When the piston rod of the driving mechanism 3, usually the hydraulic cylinder, is retracted, the wedge block 108 close to the hydraulic cylinder is loose, so the track clamp can move to the right along the track, while the equipment, such as the push device, remains in place. When the piston rod of the hydraulic cylinder is extended, the wedge block 108 away from the hydraulic cylinder is tight, and the wedge block 108 is wedged tightly against the track 4 and the friction block 107, so the track clamp clamps the track 4, and the hydraulic cylinder drives the push device forward.

[0045] In a further preferred solution, a limit screw 104 is further provided, the limit screw 104 passes through the adjusting nut 105 and the spring 106 and contacts the wedge 108, and the limit screw 104 is threadedly connected with the adjusting nut 105. With this structure, when reliable fixing is required, the limit screw 104 is directly tightened so that the limit screw 104 presses the wedge 108 tightly, and the locking operation is completed.

[0046] Embodiment 4:

[0047] Based on the above embodiments, the preferred solution is as follows Figure 7In the embodiment, an auxiliary wedge-tightening block 114 is provided on the working surface 123 of the wedge block 108. The auxiliary wedge-tightening block 114 is made of a flexible friction material, such as rubber, and has hanging ears at both ends of the rubber. A groove is provided on the working surface 123 of the wedge block 108 to accommodate the auxiliary wedge-tightening block 114. There are also hanging ear grooves on both sides of the groove. The hanging ears are placed in the hanging ear grooves to prevent the auxiliary wedge-tightening block 114 from falling out. The working surface 123 of the wedge block 108 refers to the side in contact with the track 4. A guide hole 113 is also provided in the wedge block 108. The pull rod 112 is slidably connected to the guide hole 113. A force transmission wedge 115 is provided on the back of the auxiliary wedge-tightening block 114. An inverted inclined groove 116 is provided on the pull rod 112. The sliding of the pull rod 112 causes the auxiliary wedge-tightening block 114 to protrude from the working surface 123 of the wedge block 108 through the force transmission wedge 115. Under normal conditions, the auxiliary wedge-tightening block 114 will not contact the track 4 because it is pulled by the hanging ears. When the auxiliary wedge block 114 contacts the track 4 and locking is required, the auxiliary wedge block 114 clamps the wedge block 108, the friction block 107 and the track 4 under the action of friction force, for example Figure 7 When the rail clamp moves to the right, the wedge block 108 on the right side will clamp with the friction block 107 and the rail 4. When locking is not required, for example Figure 7 The wedge block 108 on the left side is further away from the friction block 107. This structure can further reduce the starting working stroke and is particularly convenient for achieving one-way locking.

[0048] The preferred solution is Figure 7 In the embodiment, the inverted inclined groove 116 and the auxiliary wedge block 114 are provided with inclined surfaces that slide against each other. When the pull rod 112 moves toward the middle direction of the two wedge blocks 108, the auxiliary wedge block 114 protrudes from the working surface 123 of the wedge block 108. Figure 7 As shown in FIG. 1 , the directions of the inverted inclined groove 116 and the inclined surface of the auxiliary wedge block 114 are set to lock when pulled, which can make the operation more reliable.

[0049] The preferred solution is Figure 6 In the embodiment, a ridge plate 101 is provided on the clamping seat 1, the ridge plate 101 is connected to a bottom plate 109, a plurality of guide grooves 102 are provided on the bottom plate 109, a guide pin 103 is fixed on the wedge block 108, and the guide pin 103 slides in the guide groove 102;

[0050] Two slide grooves 110 are also provided on the bottom plate 109, and the two ends of the connecting rod 111 pass through the slide grooves 110 and are respectively connected to the pull rods 112 on both sides. This structure is convenient for manual operation, for example, by manually pulling the connecting rod 111, switching different positions, so that the auxiliary wedge block 114 of the wedge block 108 to be locked protrudes from the working surface. Further preferably, a plurality of grooves are provided on the ridge plate 101, corresponding to the various positions of the connecting rod 111, so that the connecting rod maintains the current position.

[0051] Embodiment 5:

[0052] Based on Example 4, the preferred solution is as follows Figure 7 , 8 In the embodiment, a driving groove 120 is provided on the ridge plate 101, and the two ends of the connecting rod 111 are connected by a connecting rod 117, and the connecting rod 117 is connected to a driving rod 122, and the end of the driving rod 122 passes through an electromagnet 118 and is connected to an armature 119, which is used to drive the pull rod 112 to slide along the guide hole 113 through the electromagnet 118. With this structure, by controlling the on and off of the electromagnet 118, the driving connecting rod 111 is located at different positions to realize automatic control. For example, one-way continuous jacking or continuous lifting operation is realized in one automated operation.

[0053] Embodiment 6:

[0054] Based on Example 4, the preferred solution is as follows Figure 7 , 9 In the embodiment, a driving groove 120 is provided on the ridge plate 101, and the two ends of the connecting rod 111 are connected by a connecting rod 117, the connecting rod 117 is connected to a driving rod 122, and the end of the driving rod 122 is connected to an electric push rod 121, and the electric push rod 121 is used to drive the pull rod 112 to slide along the guide hole 113. With this structure, the connecting rod 111 is driven to be located at different positions by the electric push rod 121 to realize automatic control. For example, one-way continuous jacking or continuous lifting operation is realized in one automated operation.

[0055] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A rail clamp, characterized by: The invention comprises a clamping seat (1), a connecting seat (2) and an anti-hook wheel seat (6), wherein baffles (5) are provided on both sides of the clamping seat (1), an "X"-shaped cavity is formed between the baffles (5) on both sides, a wedge block (108) is provided in the cavity formed by the baffles (5) on both sides, the wedge block (108) is provided with an inclined surface, the inclined surface of the wedge block (108) contacts the inclined surface of the inner wall of the cavity formed by the baffles (5), and the other side of the inclined surface of the wedge block (108) is a working surface (123), and the working surface (123) is used to contact the side surface of the track (4); The connecting seat (2) is fixedly connected to the clamping seat (1), the connecting seat (2) is located at at least one end of the clamping seat (1), and the connecting seat (2) is used to connect to the driving mechanism (3); The reverse hook wheel seat (6) is fixedly connected to the connecting seat (2), the reverse hook wheel seat (6) is located below the connecting seat (2), and reverse hook wheels (61) are provided on both sides of the reverse hook wheel seat (6), and the reverse hook wheels (61) are used to hook on the lower side of the track (4); There are two connecting seats (2), which are respectively located at two ends of the clamping seat (1), and there are at least two corresponding anti-hook wheel seats (6), which are respectively located below the connecting seats (2); There are four wedge blocks (108), two wedge blocks (108) on each side, and the small ends of the two wedge blocks (108) are arranged opposite to each other; A friction block (107) is provided at a position where the baffle plate (5) contacts the wedge block (108); the friction block (107) is made of a wear-resistant material, and the friction block (107) is fixedly connected to the baffle plate (5) by a plurality of screws; Adjustment nuts (105) are also provided at both ends of the cavity formed by the baffle (5), and a spring (106) is provided between the adjustment nut (105) and the wedge block (108), and the spring (106) is used to pre-tighten the wedge block (108); An auxiliary wedge-locking block (114) is provided on the working surface (123) of the wedge block (108). The auxiliary wedge-locking block (114) is made of a flexible friction material. A guide hole (113) is also provided in the wedge block (108). The pull rod (112) is slidably connected to the guide hole (113). A force transmission wedge block (115) is provided on the back of the auxiliary wedge-locking block (114). An inverted inclined groove (116) is provided on the pull rod (112). Both the inverted inclined groove (116) and the auxiliary wedge-locking block (114) are provided with inclined surfaces that slide against each other. When the pull rod (112) is in contact with the auxiliary wedge block (114), the auxiliary wedge block (114) is provided with an inclined surface that slides against each other. 12) moves toward the middle direction of the two wedge blocks (108), the auxiliary wedge block (114) protrudes from the working surface (123) of the wedge block (108), and the sliding of the pull rod (112) causes the auxiliary wedge block (114) to protrude from the working surface (123) of the wedge block (108) through the force transmission wedge block (115). When the auxiliary wedge block (114) contacts the track (4), under the action of friction force, the auxiliary wedge block (114) clamps the wedge block (108) with the friction block (107) and the track (4).

2. A rail clamp according to claim 1, characterized in that: A limit screw (104) is also provided. The limit screw (104) passes through the adjusting nut (105) and the spring (106) to contact the wedge block (108). The limit screw (104) is threadedly connected to the adjusting nut (105).

3. A rail clamp according to claim 1, characterized in that: The clamping seat (1) is provided with a ridge plate (101), the ridge plate (101) is connected to a bottom plate (109), a plurality of guide grooves (102) are provided on the bottom plate (109), a guide pin (103) is fixedly provided on the wedge block (108), and the guide pin (103) slides in the guide groove (102); Two slide grooves (110) are also provided on the bottom plate (109), and two ends of the connecting rod (111) pass through the slide grooves (110) and are respectively connected to the pull rods (112) on both sides.

4. A rail clamp according to claim 3, characterized in that: A driving groove (120) is provided on the ridge plate (101), and the two ends of the connecting rod (111) are connected via a connecting rod (117). The connecting rod (117) is connected to a driving rod (122), and the end of the driving rod (122) passes through an electromagnet (118) and is connected to an armature (119) for driving the pull rod (112) to slide along the guide hole (113) via the electromagnet (118).

5. The rail clamp according to claim 3, characterized in that: A driving groove (120) is provided on the ridge plate (101), and the two ends of the connecting rod (111) are connected via a connecting rod (117). The connecting rod (117) is connected to a driving rod (122), and the end of the driving rod (122) is connected to an electric push rod (121). The electric push rod (121) is used to drive the pull rod (112) to slide along the guide hole (113).

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