Spacing adjusting mechanism of double-end sleeper bolt wrench

Abstract

The utility model discloses a spacing adjusting mechanism for double-end sleeper bolt wrenches, which comprises a rack and two wrench mechanisms, two parallel support beams are arranged on the rack along the width direction of the rack, and a guide rail is respectively arranged on the two support beams along the length direction of the support beams; two installation bottom plates are arranged on the two guide rails in a sliding fit mode, and the two wrench mechanisms are installed on the two installation bottom plates. A supporting plate is arranged in the middle of the two supporting beams in the length direction; an adjusting screw rod is vertically arranged on the supporting plate, a transmission sleeve is arranged on the adjusting screw rod, and the transmission sleeve is connected with the two installation bottom plates through a transmission arm. The distance between the two working sleeves can be adjusted according to needs, so that stepless adjustment of the distance between the working sleeves is achieved, and the application range of the double-end bolt wrench is effectively widened.

Description

Technical Field

[0001] This utility model relates to the technical field of railway track maintenance equipment, and in particular to a spacing adjustment mechanism for a double-headed sleeper bolt wrench. Background Technology

[0002] Railway transportation relies on trains running on rails, which are secured using anchor bolts, spring clips, and other anchoring devices. Therefore, railway construction, daily work, and maintenance all require the extensive use of sleeper bolt wrenches. To improve maintenance efficiency, double-ended bolt wrenches capable of working on both sides of the rail simultaneously have been developed. However, in existing bolt wrenches, both wrench mechanisms are fixed to the frame, and the distance between the centerlines of their working sleeves is usually fixed and not adjustable. In reality, the center distance of anchor bolts on ballastless track is 234mm, while on conventional railways and ballasted high-speed railways it is 214mm. This means that existing double-ended bolt wrenches cannot simultaneously accommodate both distances.

[0003] Meanwhile, in some special situations, such as when the bolt spacing becomes non-standard due to deformation of the track / sleeper, standard-spacing double-ended bolt wrenches are not applicable. Therefore, there is an urgent need for a double-ended bolt wrench that can adjust the working spacing as needed. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to solve the problems of fixed position of working sleeve and poor adaptability of existing track bolt wrenches, and to provide a spacing adjustment mechanism for a double-headed sleeper bolt wrench, which can adjust the distance between the two working sleeves as needed, thereby realizing stepless adjustment of the working sleeve spacing and effectively improving the applicability of the double-headed bolt wrench.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a spacing adjustment mechanism for a double-headed sleeper bolt wrench, comprising a frame and two wrench mechanisms, characterized in that: two parallel support beams are provided on the frame along its width direction, and a guide rail is provided on each of the two support beams along its length direction; two mounting base plates are slidably fitted on the two guide rails, and the two wrench mechanisms are mounted on the two mounting base plates;

[0006] A support plate is provided at the middle of the length of the two support beams, and the two ends of the support plate are fixedly connected to the two support beams respectively. An adjusting screw is provided vertically on the support plate, and a transmission sleeve is provided on the adjusting screw. The opposite sides of the transmission sleeve are connected to the two mounting base plates through a transmission arm. By rotating the adjusting screw, the two mounting base plates can be moved in opposite directions or away from each other through the transmission arm.

[0007] Furthermore, an upper support ear is provided on each side of the transmission sleeve, and a lower support ear is provided on the side of each mounting base plate near the support plate. The upper end of the transmission arm is rotatably connected to the upper support ear via a rotating shaft, and the lower end is rotatably connected to the lower support ear via a rotating shaft.

[0008] Preferably, a threaded seat is provided on the support plate, and the adjusting screw is threadedly connected to the threaded seat; on the support plate, a through hole is provided corresponding to the position of the adjusting screw for the adjusting screw to pass through; the transmission sleeve is rotatably sleeved on the adjusting screw and close to the upper part of the adjusting screw; wherein, a support ring is formed on the adjusting screw at the position corresponding to the lower side of the transmission sleeve, and a fixing ring is provided on the upper side of the transmission sleeve, and the fixing ring is fixedly connected to the adjusting screw.

[0009] Preferably, a support ring is provided on the support plate, the lower end of the adjusting screw extends into the support ring and is rotatably connected to the support ring; the transmission sleeve is threadedly connected to the adjusting screw.

[0010] Furthermore, a bearing is provided between the lower end of the adjusting screw and the support ring.

[0011] Furthermore, at least one locking bolt is provided between each of the two mounting base plates and the guide rail.

[0012] Furthermore, an adjusting handwheel is provided at the upper end of the adjusting screw, and the adjusting handwheel is fixedly connected to the adjusting screw.

[0013] Compared with the prior art, this utility model has the following advantages: simple structure, the transmission sleeve moves up and down by rotating the adjusting screw, and the transmission sleeve then drives the two mounting base plates to move synchronously towards or away from each other through the transmission arm; thereby realizing the adjustment of the distance between the two wrench mechanisms (working sleeves), and can adjust the distance arbitrarily as needed, thereby realizing the stepless adjustment of the working sleeve distance, effectively improving the application range of the double-ended bolt wrench. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0015] Figure 2 for Figure 1 A magnified view of part A in the middle.

[0016] In the diagram: 1—frame, 2—wrench mechanism, 3—support beam, 4—guide rail, 5—mounting base plate, 6—support plate, 7—adjusting screw, 8—transmission sleeve, 9—transmission arm, 10—threaded seat, 11—adjusting handwheel. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Example 1: See Figure 1 , Figure 2A spacing adjustment mechanism for a double-headed sleeper bolt wrench includes a frame 1 and two wrench mechanisms 2. Two parallel support beams 3 are provided on the frame 1 along its width direction. A guide rail 4 is provided on each of the two support beams 3 along its length direction. The guide rail 4 can be a linear guide rail 4 or other types of guide rail 4. Two mounting base plates 5 are slidably fitted onto the two guide rails 4, and the two wrench mechanisms 2 are mounted on the two mounting base plates 5. In implementation, the lower side of the mounting base has a T-slot, and the upper part of the cross-section of the guide rail 4 is correspondingly T-shaped. At least one locking bolt is provided between each mounting base plate 5 and the guide rail 4, thereby locking and fixing the position of the mounting base plate 5.

[0021] A support plate 6 is provided at the midpoint of the length of the two support beams 3, with both ends of the support plate 6 fixedly connected to the two support beams 3 respectively. An adjusting screw 7 is vertically mounted on the support plate 6, and a transmission sleeve 8 is mounted on the adjusting screw 7. The opposite sides of the transmission sleeve 8 are connected to the two mounting base plates 5 via transmission arms 9. Rotating the adjusting screw 7 allows the two mounting base plates 5 to move in opposite directions or away from each other via the transmission arms 9. In practice, an upper support lug is provided on each side of the transmission sleeve 8, and a lower support lug is provided on the side of each mounting base plate 5 closest to the support plate 6. The upper end of the transmission arm 9 is rotatably connected to the upper support lug via a rotating shaft, and the lower end is rotatably connected to the lower support lug via a rotating shaft. For ease of assembly, a pin is used for the rotating shaft.

[0022] In this design, a threaded seat 10 is provided on the support plate 6, and the adjusting screw 7 is threadedly connected to the threaded seat 10. A through hole is provided on the support plate 6 corresponding to the position of the adjusting screw 7, allowing the adjusting screw 7 to pass through. The transmission sleeve 8 is rotatably sleeved on the adjusting screw 7 and located near the upper part of the adjusting screw 7. A support ring is formed on the adjusting screw 7 at a position corresponding to the lower side of the transmission sleeve 8, and a fixing ring is provided on the upper side of the transmission sleeve 8, which is fixedly connected to the adjusting screw 7.

[0023] In practice, an adjustment handwheel 11 is provided at the upper end of the adjustment screw 7, and the adjustment handwheel 11 is fixedly connected to the adjustment screw 7, which makes the adjustment operation more convenient.

[0024] This solution uses the rotating adjusting screw 7 to drive the transmission sleeve 8 to move up and down. The transmission sleeve 8 then drives the two mounting base plates 5 to move synchronously towards or away from each other through the transmission arm 9. This allows for the adjustment of the distance between the two wrench mechanisms 2 (working sleeves), enabling arbitrary adjustment of the distance as needed. This achieves stepless adjustment of the working sleeve distance and effectively improves the application range of the double-ended bolt wrench.

[0025] Example 2 differs from Example 1 in that a support ring is provided on the support plate, and the lower end of the adjusting screw extends into the support ring and is rotatably connected to it; the transmission sleeve is threadedly connected to the adjusting screw. A bearing is provided between the lower end of the adjusting screw and the support ring. Using this design, rotating the adjusting screw causes the transmission sleeve to move up and down along the adjusting screw, thereby moving the transmission arm and then the mounting base plate, thus achieving the adjustment of the distance between the two wrench mechanisms. Overall assembly and processing are more convenient, and the adjustment operation is easier and less strenuous. In this design, the upper side of the adjusting screw can be machined into a hexagonal structure, meaning the cross-section of the upper section of the adjusting screw is machined into a hexagonal structure, making operation with a wrench convenient.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A spacing adjustment mechanism for a double-headed sleeper bolt wrench, comprising a frame and two wrench mechanisms, characterized in that: Two parallel support beams are provided on the frame along its width direction, and a guide rail is provided on each of the two support beams along its length direction; two mounting base plates are slidably fitted on the two guide rails, and two wrench mechanisms are mounted on the two mounting base plates. A support plate is provided at the middle of the length of the two support beams, and the two ends of the support plate are fixedly connected to the two support beams respectively. An adjusting screw is provided vertically on the support plate, and a transmission sleeve is provided on the adjusting screw. The opposite sides of the transmission sleeve are connected to the two mounting base plates through a transmission arm. By rotating the adjusting screw, the two mounting base plates can be moved in opposite directions or away from each other through the transmission arm.

2. The spacing adjustment mechanism of the double-headed sleeper bolt wrench according to claim 1, characterized in that: An upper support lug is provided on each side of the transmission sleeve, and a lower support lug is provided on each side of the two mounting base plates near the support plate. The upper end of the transmission arm is rotatably connected to the upper support lug via a rotating shaft, and the lower end is rotatably connected to the lower support lug via a rotating shaft.

3. The spacing adjustment mechanism of the double-headed sleeper bolt wrench according to claim 2, characterized in that: A threaded seat is provided on the support plate, and the adjusting screw is threadedly connected to the threaded seat. On the support plate, corresponding to the position of the adjusting screw, there is a through hole for the adjusting screw to pass through. The transmission sleeve is rotatably sleeved on the adjusting screw and close to the upper part of the adjusting screw. A support ring is formed on the adjusting screw at the position corresponding to the lower side of the transmission sleeve, and a fixing ring is provided on the upper side of the transmission sleeve. The fixing ring is fixedly connected to the adjusting screw.

4. The spacing adjustment mechanism of the double-headed sleeper bolt wrench according to claim 2, characterized in that: A support ring is provided on the support plate, and the lower end of the adjusting screw extends into the support ring and is rotatably connected to the support ring; the transmission sleeve is threadedly connected to the adjusting screw.

5. The spacing adjustment mechanism of the double-headed sleeper bolt wrench according to claim 4, characterized in that: A bearing is provided between the lower end of the adjusting screw and the support ring.

6. The spacing adjustment mechanism of the double-headed sleeper bolt wrench according to claim 1, characterized in that: At least one locking bolt is provided between each of the two mounting base plates and the guide rail.

7. The spacing adjustment mechanism of the double-headed sleeper bolt wrench according to claim 1, characterized in that: An adjusting handwheel is provided at the upper end of the adjusting screw, and the adjusting handwheel is fixedly connected to the adjusting screw.

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